/* ============================================================
   CHAIN — Design System
   A digital history platform connecting Black history to
   present-day America through causal threads.
   ============================================================ */

/* ---- DESIGN TOKENS ---------------------------------------- */
:root {
  /* Color: Base Neutrals */
  --ink-0:   #ffffff;
  --ink-900: #0d0d0d;
  --ink-800: #1a1a1a;
  --ink-700: #2e2e2e;
  --ink-600: #444444;
  --ink-500: #6b6b6b;
  --ink-400: #909090;
  --ink-300: #b8b8b8;
  --ink-200: #d9d9d9;
  --ink-100: #f0eeeb;
  --ink-50:  #f8f6f3;

  /* Color: Amber — warmth, reclamation, illumination */
  --amber-700: #7a3e00;
  --amber-600: #a05200;
  --amber-500: #c96a00;
  --amber-400: #e07a00;
  --amber-300: #f59332;
  --amber-200: #fbbf74;
  --amber-100: #fde4b8;
  --amber-50:  #fff5e6;

  /* Color: Slate — authority, depth */
  --slate-800: #1e2433;
  --slate-700: #2c3550;
  --slate-600: #3d4a6e;
  --slate-500: #556080;
  --slate-400: #7888a2;
  --slate-300: #a4b1c6;
  --slate-200: #ccd4e0;
  --slate-100: #e8ecf2;

  /* Color: Sienna — historical earth, resonance */
  --sienna-700: #5c2a1a;
  --sienna-600: #7d3a24;
  --sienna-500: #a04b30;
  --sienna-400: #c05c3c;
  --sienna-300: #d87c60;
  --sienna-200: #eba48c;
  --sienna-100: #f5cfc4;

  /* Color: Semantic */
  --color-bg:          var(--ink-50);
  --color-surface:     #ffffff;
  --color-surface-alt: var(--ink-100);
  --color-border:      var(--ink-200);
  --color-border-subtle: var(--ink-100);

  --color-text-primary:   var(--ink-900);
  --color-text-secondary: var(--ink-600);
  --color-text-tertiary:  var(--ink-400);
  --color-text-inverse:   #ffffff;

  --color-accent:       var(--amber-400);
  --color-accent-dark:  var(--amber-600);
  --color-accent-light: var(--amber-100);

  --color-thread:       var(--sienna-400);
  --color-thread-dark:  var(--sienna-700);
  --color-thread-bg:    var(--sienna-100);

  --color-nav-bg:       var(--ink-900);
  --color-nav-text:     var(--ink-100);

  /* Typography: Scale */
  --font-editorial: 'Playfair Display', 'Georgia', 'Times New Roman', serif;
  --font-sans:      'Inter', 'Helvetica Neue', 'Arial', sans-serif;
  --font-mono:      'JetBrains Mono', 'Fira Code', 'Courier New', monospace;

  --type-3xl:  clamp(2.25rem, 5vw, 4rem);
  --type-2xl:  clamp(1.75rem, 3.5vw, 2.75rem);
  --type-xl:   clamp(1.375rem, 2.5vw, 1.875rem);
  --type-lg:   clamp(1.125rem, 1.8vw, 1.375rem);
  --type-md:   1rem;
  --type-sm:   0.875rem;
  --type-xs:   0.75rem;

  --leading-tight:  1.2;
  --leading-snug:   1.35;
  --leading-normal: 1.6;
  --leading-loose:  1.8;

  --tracking-tight:  -0.03em;
  --tracking-snug:   -0.015em;
  --tracking-normal: 0;
  --tracking-wide:   0.05em;
  --tracking-wider:  0.1em;

  --weight-regular: 400;
  --weight-medium:  500;
  --weight-semibold:600;
  --weight-bold:    700;

  /* Spacing */
  --space-1:  0.25rem;
  --space-2:  0.5rem;
  --space-3:  0.75rem;
  --space-4:  1rem;
  --space-5:  1.25rem;
  --space-6:  1.5rem;
  --space-8:  2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;
  --space-32: 8rem;

  /* Layout */
  --max-w-prose:  68ch;
  --max-w-read:   80ch;
  --max-w-wide:   1200px;
  --max-w-full:   1440px;
  --col-gap:      clamp(1rem, 3vw, 2rem);

  /* Radii */
  --radius-sm:  3px;
  --radius-md:  6px;
  --radius-lg:  12px;
  --radius-xl:  20px;
  --radius-pill:9999px;

  /* Shadows */
  --shadow-xs:  0 1px 2px rgba(0,0,0,.06);
  --shadow-sm:  0 2px 8px rgba(0,0,0,.08);
  --shadow-md:  0 4px 20px rgba(0,0,0,.1);
  --shadow-lg:  0 8px 40px rgba(0,0,0,.14);
  --shadow-xl:  0 16px 60px rgba(0,0,0,.18);

  /* Transitions */
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --ease-in-out: cubic-bezier(0.4, 0, 0.2, 1);
  --duration-fast:   150ms;
  --duration-normal: 250ms;
  --duration-slow:   400ms;

  /* Z-layers */
  --z-base:     1;
  --z-raised:   10;
  --z-sticky:   100;
  --z-overlay:  200;
  --z-modal:    300;
  --z-toast:    400;

  /* Nav height */
  --nav-utility-h: 40px;
  --nav-main-h: 68px;
  --nav-total: calc(var(--nav-utility-h) + var(--nav-main-h));
}

/* ---- DARK MODE ------------------------------------------- */
[data-theme="dark"] {
  --color-bg:          var(--ink-900);
  --color-surface:     var(--ink-800);
  --color-surface-alt: var(--ink-700);
  --color-border:      var(--ink-700);
  --color-border-subtle: var(--ink-800);

  --color-text-primary:   #f0eeeb;
  --color-text-secondary: var(--ink-300);
  --color-text-tertiary:  var(--ink-500);
  --color-text-inverse:   var(--ink-900);

  --color-accent:       var(--amber-300);
  --color-accent-dark:  var(--amber-400);
  --color-accent-light: var(--amber-700);

  --color-thread:       var(--sienna-300);
  --color-thread-dark:  var(--sienna-500);
  --color-thread-bg:    var(--sienna-700);

  --shadow-xs: 0 1px 2px rgba(0,0,0,.3);
  --shadow-sm: 0 2px 8px rgba(0,0,0,.4);
  --shadow-md: 0 4px 20px rgba(0,0,0,.5);
  --shadow-lg: 0 8px 40px rgba(0,0,0,.6);
}

/* ---- RESET & BASE ---------------------------------------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  overflow-x: hidden; /* prevent any element from causing horizontal scroll */
}

body {
  font-family: var(--font-sans);
  font-size: var(--type-md);
  line-height: var(--leading-normal);
  color: var(--color-text-primary);
  background-color: var(--color-bg);
  overflow-x: hidden; /* belt + suspenders — kills horizontal bleed site-wide */
  transition: background-color var(--duration-slow) var(--ease-out),
              color var(--duration-slow) var(--ease-out);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img, video { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }
input, textarea, select { font-family: inherit; }

/* ---- SKIP LINK ------------------------------------------- */
.skip-link {
  position: absolute;
  top: -100%;
  left: var(--space-4);
  z-index: var(--z-toast);
  padding: var(--space-3) var(--space-5);
  background: var(--color-accent);
  color: var(--ink-900);
  font-weight: var(--weight-semibold);
  font-size: var(--type-sm);
  border-radius: var(--radius-md);
  transition: top var(--duration-fast);
}
.skip-link:focus { top: var(--space-4); }

/* ---- FOCUS STYLES ---------------------------------------- */
:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

/* ---- TYPOGRAPHY ------------------------------------------ */
.type-display {
  font-family: var(--font-editorial);
  font-size: var(--type-3xl);
  font-weight: var(--weight-bold);
  line-height: var(--leading-tight);
  letter-spacing: var(--tracking-tight);
}

.type-headline {
  font-family: var(--font-editorial);
  font-size: var(--type-2xl);
  font-weight: var(--weight-bold);
  line-height: var(--leading-snug);
  letter-spacing: var(--tracking-tight);
}

.type-title {
  font-family: var(--font-editorial);
  font-size: var(--type-xl);
  font-weight: var(--weight-bold);
  line-height: var(--leading-snug);
}

.type-subhead {
  font-family: var(--font-sans);
  font-size: var(--type-lg);
  font-weight: var(--weight-medium);
  line-height: var(--leading-snug);
}

.type-body {
  font-size: var(--type-md);
  line-height: var(--leading-normal);
}

.type-caption {
  font-size: var(--type-sm);
  line-height: var(--leading-normal);
  color: var(--color-text-secondary);
}

.type-label {
  font-size: var(--type-xs);
  font-weight: var(--weight-semibold);
  letter-spacing: var(--tracking-wider);
  text-transform: uppercase;
  color: var(--color-text-tertiary);
}

/* ---- LAYOUT UTILITIES ------------------------------------ */
.container {
  width: 100%;
  max-width: var(--max-w-wide);
  margin-inline: auto;
  padding-inline: clamp(1.25rem, 5vw, 3rem);
}

.container--full { max-width: var(--max-w-full); }
.container--prose { max-width: var(--max-w-prose); }
.container--read  { max-width: var(--max-w-read); }

.section {
  padding-block: clamp(4rem, 8vw, 7rem);
}

.section--sm { padding-block: clamp(2.5rem, 4vw, 4rem); }
.section--lg { padding-block: clamp(6rem, 11vw, 10rem); }

/* ---- UTILITY BAR ----------------------------------------- */
.utility-bar {
  height: var(--nav-utility-h);
  background: var(--ink-800);
  display: flex;
  align-items: center;
  position: sticky;
  top: 0;
  z-index: var(--z-sticky);
}

.utility-bar__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  max-width: var(--max-w-full);
  margin-inline: auto;
  padding-inline: clamp(1.25rem, 5vw, 3rem);
}

.utility-bar__message {
  font-size: var(--type-xs);
  color: var(--ink-400);
  letter-spacing: var(--tracking-wide);
}

.utility-bar__message strong {
  color: var(--amber-300);
  font-weight: var(--weight-semibold);
}

.utility-bar__msg-link {
  color: var(--ink-300);
  text-decoration: underline;
  text-decoration-color: rgba(251,191,116,.35);
  text-underline-offset: 2px;
  transition: color var(--duration-fast);
}

.utility-bar__msg-link:hover {
  color: var(--amber-300);
  text-decoration-color: var(--amber-300);
}

.utility-bar__links {
  display: flex;
  align-items: center;
  gap: var(--space-6);
}

.utility-bar__link {
  font-size: var(--type-xs);
  color: var(--ink-400);
  letter-spacing: var(--tracking-wide);
  transition: color var(--duration-fast);
}

.utility-bar__link:hover { color: var(--amber-300); }

.utility-bar__link--cta {
  color: var(--amber-300);
  font-weight: var(--weight-semibold);
  border: 1px solid rgba(251, 191, 116, .3);
  padding: 2px var(--space-3);
  border-radius: var(--radius-sm);
  transition: background var(--duration-fast), color var(--duration-fast);
}

.utility-bar__link--cta:hover {
  background: var(--amber-300);
  color: var(--ink-900);
}

/* ---- MAIN NAVIGATION ------------------------------------- */
.site-nav {
  height: var(--nav-main-h);
  background: var(--ink-900);
  border-bottom: 1px solid rgba(255,255,255,.06);
  display: flex;
  align-items: center;
  position: sticky;
  top: var(--nav-utility-h);
  z-index: var(--z-sticky);
}

.site-nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-8);
  width: 100%;
  max-width: var(--max-w-full);
  margin-inline: auto;
  padding-inline: clamp(1.25rem, 5vw, 3rem);
}

.site-nav__wordmark {
  display: flex;
  align-items: baseline;
  gap: var(--space-2);
  flex-shrink: 0;
}

.site-nav__name {
  font-family: var(--font-editorial);
  font-size: 1.625rem;
  font-weight: var(--weight-bold);
  color: #ffffff;
  letter-spacing: -0.02em;
}

.site-nav__tagline {
  font-size: var(--type-xs);
  color: var(--ink-500);
  letter-spacing: var(--tracking-wide);
  white-space: nowrap;
  display: none;
}

@media (min-width: 900px) {
  .site-nav__tagline { display: inline; }
}

.site-nav__links {
  display: none;
  align-items: center;
  gap: 0;
}

@media (min-width: 768px) {
  .site-nav__links { display: flex; }
}

.site-nav__link {
  padding: var(--space-2) var(--space-3);
  font-size: var(--type-sm);
  font-weight: var(--weight-medium);
  color: var(--ink-300);
  letter-spacing: var(--tracking-snug);
  border-radius: var(--radius-md);
  transition: color var(--duration-fast), background var(--duration-fast);
  white-space: nowrap;
}

@media (min-width: 1024px) {
  .site-nav__link { padding: var(--space-2) var(--space-4); }
}

/* "Submit a Thread" link — styled as a soft CTA button */
.site-nav__link--cta {
  color: var(--amber-300) !important;
  border: 1px solid rgba(251,191,36,.3);
  padding: var(--space-2) var(--space-4) !important;
  font-weight: var(--weight-semibold) !important;
}
.site-nav__link--cta:hover {
  background: rgba(251,191,36,.12) !important;
  border-color: rgba(251,191,36,.55);
  color: var(--amber-200) !important;
}

.site-nav__link:hover {
  color: #ffffff;
  background: rgba(255,255,255,.07);
}
.site-nav__link[aria-current="page"] {
  color: #ffffff;
  background: rgba(255,255,255,.11);
  font-weight: var(--weight-semibold);
  box-shadow: inset 0 -2px 0 var(--amber-400);
}
.site-nav__link:active {
  background: rgba(255,255,255,.15);
  transform: scale(0.97);
}

.site-nav__actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

/* Search toggle */
.nav-search-btn {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  border: 1px solid rgba(255,255,255,.12);
  border-radius: var(--radius-pill);
  background: rgba(255,255,255,.04);
  color: var(--ink-300);
  font-size: var(--type-sm);
  transition: color var(--duration-fast), background var(--duration-fast), border-color var(--duration-fast), transform var(--duration-fast);
}

.nav-search-btn:hover {
  background: rgba(255,255,255,.1);
  color: #ffffff;
  border-color: rgba(255,255,255,.2);
}
.nav-search-btn:active {
  background: rgba(255,255,255,.18);
  transform: scale(0.97);
}

.nav-search-btn__icon {
  width: 15px;
  height: 15px;
  stroke: currentColor;
  fill: none;
  stroke-width: 2;
  stroke-linecap: round;
}

/* ⌘K badge on nav search button */
.nav-search-kbd {
  font-family: var(--font-mono);
  font-size: 9px;
  font-weight: 600;
  color: var(--ink-500);
  background: rgba(255,255,255,0.07);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 4px;
  padding: 1px 4px;
  letter-spacing: 0.02em;
  margin-left: 2px;
}

/* Context Ribbon — global base (dark slate, always dark) */
.context-ribbon {
  background: var(--slate-800);
  border-bottom: 1px solid var(--slate-700);
  font-size: 11px;
  position: sticky;
  top: var(--nav-total); /* 100px = utility + main nav */
  z-index: 89;
}

.context-ribbon__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  height: 36px;
  max-width: var(--max-w-full);
  margin-inline: auto;
  padding-inline: clamp(1.25rem, 5vw, 3rem);
}

.context-ribbon__stats {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  overflow: hidden;
  flex-wrap: nowrap;
}

.context-ribbon__stat {
  color: var(--slate-300);
  white-space: nowrap;
}

.context-ribbon__stat strong {
  color: var(--amber-300);
  font-weight: 600;
}

.context-ribbon__divider {
  color: var(--slate-600);
  flex-shrink: 0;
}

.context-ribbon__nav {
  display: flex;
  align-items: center;
  gap: var(--space-5);
  flex-shrink: 0;
}

.context-ribbon__link {
  color: var(--slate-300);
  font-weight: 500;
  text-decoration: none;
  transition: color var(--duration-fast);
  white-space: nowrap;
}

.context-ribbon__link:hover { color: #fff; }

.context-ribbon__link--live {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  color: var(--amber-300);
}

.context-ribbon__live-dot {
  width: 5px; height: 5px;
  border-radius: 50%;
  background: var(--amber-400);
}

@media (prefers-reduced-motion: no-preference) {
  .context-ribbon__live-dot { animation: pulse-dot 2s infinite; }
}

/* Today pill */
.today-pill {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  background: var(--amber-400);
  color: var(--ink-900);
  font-size: var(--type-xs);
  font-weight: var(--weight-semibold);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  border-radius: var(--radius-pill);
  transition: background var(--duration-fast);
}

.today-pill:hover { background: var(--amber-300); }

.today-pill__dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--ink-900);
}

@media (prefers-reduced-motion: no-preference) {
  .today-pill__dot { animation: pulse-dot 2s infinite; }
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.6; transform: scale(0.8); }
}

/* Theme toggle */
.theme-toggle {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  color: var(--ink-400);
  transition: color var(--duration-fast), background var(--duration-fast);
}

.theme-toggle:hover {
  color: #ffffff;
  background: rgba(255,255,255,.08);
}

.theme-toggle:active {
  background: rgba(255,255,255,.15);
  transform: scale(0.92);
}

/* Mobile hamburger */
.nav-menu-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  color: var(--ink-300);
  transition: color var(--duration-fast), background var(--duration-fast);
  border-radius: var(--radius-md);
}
.nav-menu-btn:hover { color: #fff; background: rgba(255,255,255,.08); }
.nav-menu-btn:active { background: rgba(255,255,255,.15); transform: scale(0.92); }

@media (min-width: 768px) { .nav-menu-btn { display: none; } }

/* Search overlay */
.search-overlay {
  position: fixed;
  inset: 0;
  background: rgba(13,13,13,.95);
  backdrop-filter: blur(8px);
  contain: layout paint;
  z-index: var(--z-modal);
  display: grid;
  place-items: start center;
  padding-top: 12vh;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--duration-normal) var(--ease-out),
              visibility var(--duration-normal);
}

.search-overlay.is-open {
  opacity: 1;
  visibility: visible;
}

.search-overlay__inner {
  width: 100%;
  max-width: 720px;
  padding-inline: var(--space-6);
}

.search-overlay__form {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  border-bottom: 2px solid var(--amber-400);
  padding-bottom: var(--space-4);
  margin-bottom: var(--space-8);
}

.search-overlay__input {
  flex: 1;
  background: none;
  border: none;
  font-family: var(--font-editorial);
  font-size: clamp(1.5rem, 3vw, 2rem);
  color: #ffffff;
  outline: none;
  caret-color: var(--amber-400);
}

.search-overlay__input::placeholder { color: var(--ink-600); }

.search-overlay__close {
  color: var(--ink-500);
  font-size: var(--type-lg);
  padding: var(--space-2);
  transition: color var(--duration-fast);
}

.search-overlay__close:hover { color: #ffffff; }

.search-overlay__hints {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
}

.search-overlay__hint-label {
  font-size: var(--type-xs);
  color: var(--ink-500);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wider);
  width: 100%;
  margin-bottom: var(--space-2);
}

.search-hint-chip {
  padding: var(--space-2) var(--space-4);
  border: 1px solid var(--ink-700);
  border-radius: var(--radius-pill);
  font-size: var(--type-sm);
  color: var(--ink-300);
  cursor: pointer;
  transition: color var(--duration-fast), background var(--duration-fast), border-color var(--duration-fast), transform var(--duration-fast);
}

.search-hint-chip:hover {
  border-color: var(--amber-400);
  color: var(--amber-300);
  background: rgba(224, 122, 0, .08);
}
.search-hint-chip:active {
  background: rgba(224, 122, 0, .18);
  transform: scale(0.95);
}

/* ---- HERO ------------------------------------------------- */
.hero {
  background: var(--ink-900);
  position: relative;
  overflow: hidden;
  min-height: 100vh;
  display: flex;
  align-items: center;
}

/* ---- Hero background image -------------------------------- */
.hero__bg-image {
  position: absolute;
  inset: -5% 0;     /* vertical bleed only — no horizontal overflow */
  z-index: 0;
}

.hero__bg-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 62% 12%;
  display: block;
  transform: scale(1.04);   /* tiny scale-up so edges never show */
}

/* Gradient overlay: left side dark for legibility, right side opens wide to the statue */
.hero__bg-image::after {
  content: '';
  position: absolute;
  inset: 0;
  background:
    linear-gradient(to right,
      rgba(6, 4, 2, 0.94) 0%,
      rgba(6, 4, 2, 0.80) 30%,
      rgba(6, 4, 2, 0.42) 52%,
      rgba(6, 4, 2, 0.08) 100%
    ),
    linear-gradient(to bottom,
      rgba(6, 4, 2, 0.45) 0%,
      transparent 18%,
      transparent 68%,
      rgba(6, 4, 2, 0.70) 100%
    );
}

@media (max-width: 959px) {
  .hero__bg-image img {
    object-position: 58% 10%;
  }
  .hero__bg-image::after {
    background:
      linear-gradient(to bottom,
        rgba(6, 4, 2, 0.85) 0%,
        rgba(6, 4, 2, 0.65) 40%,
        rgba(6, 4, 2, 0.80) 100%
      );
  }
}

.hero__texture {
  position: absolute;
  inset: 0;
  z-index: 1;
  background-image:
    radial-gradient(ellipse 50% 50% at 25% 55%, rgba(196, 146, 0, .07) 0%, transparent 60%),
    radial-gradient(ellipse 35% 55% at 10% 80%, rgba(120, 60, 30, .10) 0%, transparent 55%);
  pointer-events: none;
}

.hero__grid-overlay {
  position: absolute;
  inset: 0;
  z-index: 1;
  background-image:
    linear-gradient(rgba(255,255,255,.018) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.018) 1px, transparent 1px);
  background-size: 80px 80px;
  pointer-events: none;
  mask-image: linear-gradient(to bottom, transparent, black 20%, black 80%, transparent);
}

.hero__inner {
  position: relative;
  z-index: 2;
  width: 100%;
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-16);
  align-items: center;
}

@media (min-width: 960px) {
  .hero__inner {
    grid-template-columns: 1fr 420px;
    gap: var(--space-16);
  }
}

.hero__content {}

.hero__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  font-size: var(--type-xs);
  font-weight: var(--weight-semibold);
  letter-spacing: var(--tracking-wider);
  text-transform: uppercase;
  color: var(--amber-300);
  margin-bottom: var(--space-6);
}

.hero__eyebrow::before {
  content: '';
  display: block;
  width: 24px;
  height: 2px;
  background: var(--amber-400);
}

.hero__headline {
  font-family: var(--font-editorial);
  font-size: clamp(2.75rem, 6vw, 5rem);
  font-weight: var(--weight-bold);
  line-height: 1.08;
  letter-spacing: -0.03em;
  color: #ffffff;
  margin-bottom: var(--space-6);
}

.hero__headline em {
  font-style: italic;
  color: var(--amber-300);
}

.hero__subhead {
  font-size: clamp(1rem, 1.5vw, 1.25rem);
  color: var(--ink-300);
  line-height: 1.65;
  max-width: 50ch;
  margin-bottom: var(--space-10);
}

.hero__cta-group {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  align-items: center;
}

/* ── Hero question-driven search entry ─────────────────── */
.hero__search-entry {
  width: 100%;
  max-width: 540px;
}

.hero__search-form {
  width: 100%;
}

.hero__search-row {
  position: relative;
  display: flex;
  align-items: center;
}

.hero__search-input {
  width: 100%;
  padding: 1rem 3.25rem 1rem 1.25rem;
  background: rgba(255,255,255,0.09);
  border: 1.5px solid rgba(255,255,255,0.22);
  border-radius: var(--radius-lg);
  color: #ffffff;
  font-family: var(--font-sans);
  font-size: 0.95rem;
  outline: none;
  transition: border-color 0.2s, background 0.2s, box-shadow 0.2s;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.hero__search-input::placeholder {
  color: rgba(255,255,255,0.48);
  font-style: italic;
}

.hero__search-input:focus {
  border-color: var(--amber-400);
  background: rgba(255,255,255,0.1);
  box-shadow: 0 0 0 3px rgba(196,146,0,0.2), 0 4px 20px rgba(0,0,0,0.3);
}

.hero__search-submit {
  position: absolute;
  right: 0.5rem;
  top: 50%;
  transform: translateY(-50%);
  width: 44px;
  height: 44px;
  border-radius: calc(var(--radius-md) - 2px);
  background: var(--amber-400);
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--ink-900);
  transition: background 0.2s, transform 0.15s;
  flex-shrink: 0;
}

.hero__search-submit:hover {
  background: var(--amber-300);
  transform: translateY(calc(-50% - 1px));
}

.hero__search-submit:focus-visible {
  outline: 2px solid var(--amber-400);
  outline-offset: 2px;
}

/* Question pills */
.hero__q-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin-top: 0.8rem;
}

.hero__q-pill {
  display: inline-block;
  padding: 0.42rem 0.85rem;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.13);
  border-radius: 999px;
  font-family: var(--font-sans);
  font-size: 0.75rem;
  font-weight: var(--weight-medium);
  color: rgba(255,255,255,0.7);
  text-decoration: none;
  white-space: nowrap;
  min-height: 32px;
  line-height: 1.3;
  transition: background 0.18s, border-color 0.18s, color 0.18s, transform 0.15s;
}

.hero__q-pill:hover {
  background: rgba(196,146,0,0.15);
  border-color: rgba(196,146,0,0.45);
  color: var(--amber-300);
  transform: translateY(-1px);
}

/* Pills beyond first 3 hide on small screens */
.hero__q-pill--more {
  display: none;
}

@media (min-width: 600px) {
  .hero__q-pill--more {
    display: inline-block;
  }
}

/* Browse all link */
/* ── Start the Journey CTA ───────────────────────────────── */
.hero__journey-cta {
  display: flex;
  align-items: center;
  gap: var(--space-5);
  margin: var(--space-7) 0 var(--space-4);
  flex-wrap: wrap;
  padding-top: var(--space-6);
  border-top: 1px solid rgba(255,255,255,.08);
}

.hero__journey-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  background: var(--amber-300);
  color: #1a0e00;
  border-radius: var(--radius-pill);
  padding: var(--space-3) var(--space-7);
  font-size: 1.05rem;
  font-weight: var(--weight-bold);
  text-decoration: none;
  letter-spacing: -0.01em;
  transition: background 0.15s, transform 0.15s, box-shadow 0.15s;
  box-shadow: 0 0 0 4px rgba(245,147,50,.18), 0 4px 24px rgba(245,147,50,.30);
  white-space: nowrap;
}

.hero__journey-btn:hover {
  background: var(--amber-200);
  transform: translateX(4px);
  box-shadow: 0 0 0 6px rgba(245,147,50,.22), 0 6px 32px rgba(245,147,50,.38);
}

.hero__journey-btn-icon {
  font-size: 1.1em;
  line-height: 1;
}

.hero__journey-btn-sub {
  font-size: var(--type-xs);
  font-weight: var(--weight-medium);
  opacity: 0.65;
  white-space: nowrap;
}

@media (max-width: 560px) {
  .hero__journey-btn-sub { display: none; }
  .hero__journey-btn { font-size: var(--type-sm); padding: var(--space-3) var(--space-5); }
}

.hero__journey-browse {
  font-size: var(--type-xs);
  color: rgba(255,255,255,0.38);
  text-decoration: none;
  white-space: nowrap;
  transition: color 0.15s;
}

.hero__journey-browse:hover { color: var(--amber-300); }

/* ── Search browse link ───────────────────────────────────── */
.hero__browse-link {
  display: inline-block;
  margin-top: 0.85rem;
  font-family: var(--font-sans);
  font-size: var(--type-xs);
  font-weight: var(--weight-medium);
  color: rgba(255,255,255,0.38);
  text-decoration: none;
  letter-spacing: 0.02em;
  transition: color 0.2s;
}

.hero__browse-link:hover {
  color: var(--amber-300);
}

@media (max-width: 480px) {
  .hero__search-input {
    font-size: 1rem; /* prevent iOS auto-zoom */
  }
  .hero__search-entry {
    max-width: 100%;
  }
}

/* ---- BUTTONS --------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  font-family: var(--font-sans);
  font-size: var(--type-sm);
  font-weight: var(--weight-semibold);
  border-radius: var(--radius-md);
  transition: color var(--duration-fast) var(--ease-out), background var(--duration-fast) var(--ease-out), border-color var(--duration-fast) var(--ease-out), transform var(--duration-fast) var(--ease-out), box-shadow var(--duration-fast) var(--ease-out);
  white-space: nowrap;
}

.btn--primary {
  background: var(--amber-400);
  color: var(--ink-900);
  border: 2px solid var(--amber-400);
}
.btn--primary:hover {
  background: var(--amber-300);
  border-color: var(--amber-300);
}
.btn--primary:active {
  background: var(--amber-500);
  border-color: var(--amber-500);
  transform: scale(0.97);
}
.btn--primary:focus-visible {
  outline: 2px solid var(--amber-400);
  outline-offset: 3px;
}

/* Plain text link for secondary hero action */
.hero__text-link {
  font-family: var(--font-sans);
  font-size: var(--type-sm);
  font-weight: var(--weight-medium);
  color: rgba(255,255,255,0.52);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  padding-bottom: 1px;
  transition: color var(--duration-fast), border-color var(--duration-fast);
}
.hero__text-link:hover {
  color: var(--amber-300);
  border-bottom-color: rgba(196,146,0,0.4);
}

.btn--secondary {
  background: transparent;
  color: var(--ink-300);
  border: 2px solid rgba(255,255,255,.15);
}
.btn--secondary:hover {
  color: #ffffff;
  border-color: rgba(255,255,255,.3);
  background: rgba(255,255,255,.06);
}
.btn--secondary:active {
  background: rgba(255,255,255,.12);
  transform: scale(0.97);
}

.btn--ghost {
  background: transparent;
  color: var(--color-text-primary);
  border: 2px solid var(--color-border);
  padding: var(--space-2) var(--space-5);
}
.btn--ghost:hover {
  border-color: var(--color-accent);
  color: var(--color-accent-dark);
}
.btn--ghost:active {
  background: var(--color-surface-alt);
  transform: scale(0.97);
}

.btn--thread {
  background: var(--sienna-500);
  color: #ffffff;
  border: 2px solid var(--sienna-500);
}
.btn--thread:hover {
  background: var(--sienna-600);
  border-color: var(--sienna-600);
}
.btn--thread:active {
  background: var(--sienna-700, #7c2d12);
  border-color: var(--sienna-700, #7c2d12);
  transform: scale(0.97);
}

.btn__arrow {
  transition: transform var(--duration-fast);
}
.btn:hover .btn__arrow { transform: translateX(3px); }

/* ---- HERO FEATURE CARD ----------------------------------- */
.hero__feature {
  background: rgba(255,255,255,.04);
  border: 1px solid rgba(255,255,255,.09);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  backdrop-filter: blur(4px);
  contain: layout paint;
  display: none;
}

@media (min-width: 960px) {
  .hero__feature { display: block; }
}

.hero__feature-label {
  font-size: var(--type-xs);
  font-weight: var(--weight-semibold);
  letter-spacing: var(--tracking-wider);
  text-transform: uppercase;
  color: var(--sienna-300);
  margin-bottom: var(--space-5);
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.hero__feature-title {
  font-family: var(--font-editorial);
  font-size: 1.5rem;
  font-weight: var(--weight-bold);
  color: #ffffff;
  line-height: 1.3;
  margin-bottom: var(--space-3);
}

.hero__feature-summary {
  font-size: var(--type-sm);
  color: var(--ink-400);
  line-height: 1.65;
  margin-bottom: var(--space-6);
}

.thread-nodes {
  display: flex;
  flex-direction: column;
  gap: 0;
  margin-bottom: var(--space-6);
}

.thread-node {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  position: relative;
  padding-bottom: var(--space-4);
}

.thread-node:last-child { padding-bottom: 0; }

.thread-node__connector {
  display: flex;
  flex-direction: column;
  align-items: center;
  flex-shrink: 0;
  width: 20px;
}

.thread-node__dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--sienna-400);
  border: 2px solid rgba(255,255,255,.2);
  flex-shrink: 0;
  margin-top: 4px;
}

.thread-node:first-child .thread-node__dot { background: var(--amber-400); }
.thread-node:last-child .thread-node__dot  { background: var(--slate-400); }

.thread-node__line {
  width: 1px;
  flex: 1;
  background: linear-gradient(to bottom, var(--sienna-700), var(--ink-700));
  min-height: 24px;
  margin-top: var(--space-1);
}

.thread-node:last-child .thread-node__line { display: none; }

.thread-node__text {
  font-size: var(--type-xs);
  color: var(--ink-400);
  padding-top: 2px;
}

.thread-node__year {
  font-weight: var(--weight-semibold);
  color: var(--ink-300);
  margin-right: var(--space-2);
}

.hero__feature-link {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--type-sm);
  font-weight: var(--weight-semibold);
  color: var(--amber-300);
  transition: gap var(--duration-fast);
}

.hero__feature-link:hover { gap: var(--space-3); }

/* ---- QUESTIONS SECTION ----------------------------------- */
.questions-section {
  background: var(--color-surface-alt);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  padding-block: var(--space-12);
}

.questions-section__header {
  margin-bottom: var(--space-8);
}

.questions-section__title {
  font-family: var(--font-editorial);
  font-size: var(--type-xl);
  font-weight: var(--weight-bold);
  color: var(--color-text-primary);
  margin-bottom: var(--space-2);
}

.questions-section__sub {
  color: var(--color-text-secondary);
  font-size: var(--type-sm);
}

.question-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-4);
}

@media (min-width: 600px) {
  .question-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 1024px) {
  .question-grid { grid-template-columns: repeat(3, 1fr); }
}

.question-card {
  display: flex;
  align-items: flex-start;
  gap: var(--space-4);
  padding: var(--space-6);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  transition: border-color var(--duration-normal) var(--ease-out), box-shadow var(--duration-normal) var(--ease-out), transform var(--duration-normal) var(--ease-out);
  text-align: left;
}

.question-card:hover {
  border-color: var(--color-accent);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.question-card__icon {
  width: 36px;
  height: 36px;
  flex-shrink: 0;
  border-radius: var(--radius-md);
  display: grid;
  place-items: center;
  font-size: 1.1rem;
  background: var(--color-accent-light);
  color: var(--color-accent-dark);
}

.question-card__q {
  font-family: var(--font-editorial);
  font-size: 1rem;
  font-weight: var(--weight-bold);
  color: var(--color-text-primary);
  line-height: var(--leading-snug);
  margin-bottom: var(--space-2);
}

.question-card__thread {
  font-size: var(--type-xs);
  color: var(--color-thread);
  font-weight: var(--weight-semibold);
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

/* ---- THREAD FEATURE SECTION ------------------------------ */
.thread-feature {
  background: var(--ink-900);
  color: #fff;
  position: relative;
  overflow: hidden;
}

.thread-feature__bg-accent {
  position: absolute;
  top: 0;
  right: 0;
  width: 50%;
  height: 100%;
  background: linear-gradient(135deg, transparent 40%, rgba(92, 42, 26, .08) 100%);
  pointer-events: none;
}

.thread-feature__label {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  font-size: var(--type-xs);
  font-weight: var(--weight-semibold);
  letter-spacing: var(--tracking-wider);
  text-transform: uppercase;
  color: var(--sienna-300);
  margin-bottom: var(--space-6);
}

.thread-feature__label-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--sienna-300);
}

.steps-pause-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  margin-top: var(--space-4);
  padding: var(--space-1) var(--space-3);
  border: 1px solid rgba(255,255,255,.15);
  border-radius: var(--radius-pill);
  background: transparent;
  color: var(--ink-400);
  font-size: var(--type-xs);
  font-weight: var(--weight-semibold);
  letter-spacing: var(--tracking-wide);
  cursor: pointer;
  transition: color var(--duration-fast), border-color var(--duration-fast), background var(--duration-fast);
}
.steps-pause-btn:hover { color: #fff; border-color: rgba(255,255,255,.3); background: rgba(255,255,255,.06); }
.steps-pause-btn:active { background: rgba(255,255,255,.12); transform: scale(0.97); }
.steps-pause-btn[aria-pressed="true"] { color: var(--amber-300); border-color: rgba(224,122,0,.4); }

.thread-feature__title {
  font-family: var(--font-editorial);
  font-size: clamp(1.75rem, 3.5vw, 2.75rem);
  font-weight: var(--weight-bold);
  line-height: 1.2;
  letter-spacing: -0.025em;
  color: #ffffff;
  max-width: 60ch;
  margin-bottom: var(--space-4);
}

.thread-feature__description {
  font-size: var(--type-md);
  color: var(--ink-400);
  max-width: 55ch;
  line-height: var(--leading-loose);
  margin-bottom: var(--space-10);
}

/* Scrollytelling thread component */
.thread-scroller {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-8);
}

@media (min-width: 900px) {
  .thread-scroller {
    grid-template-columns: 1fr 360px;
    gap: var(--space-12);
    align-items: start;
  }
}

.thread-steps {}

.thread-step {
  display: flex;
  gap: var(--space-6);
  padding-bottom: var(--space-10);
  position: relative;
  cursor: pointer;
}

.thread-step::before {
  content: '';
  position: absolute;
  left: 19px;
  top: 40px;
  bottom: 0;
  width: 1px;
  background: linear-gradient(to bottom, var(--sienna-700), transparent);
}

.thread-step:last-child::before { display: none; }

.thread-step__marker {
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 40px;
}

.thread-step__number {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-size: var(--type-xs);
  font-weight: var(--weight-bold);
  background: var(--ink-800);
  color: var(--ink-500);
  border: 1px solid var(--ink-700);
  transition: background var(--duration-normal), color var(--duration-normal), border-color var(--duration-normal);
  letter-spacing: var(--tracking-wide);
}

.thread-step.is-active .thread-step__number,
.thread-step:hover .thread-step__number {
  background: var(--sienna-600);
  color: #ffffff;
  border-color: var(--sienna-400);
}

.thread-step__body {
  padding-top: var(--space-2);
  flex: 1;
}

.thread-step__era {
  font-size: var(--type-xs);
  font-weight: var(--weight-semibold);
  letter-spacing: var(--tracking-wider);
  text-transform: uppercase;
  color: var(--sienna-300);
  margin-bottom: var(--space-2);
}

.thread-step__title {
  font-family: var(--font-editorial);
  font-size: 1.125rem;
  font-weight: var(--weight-bold);
  color: #ffffff;
  margin-bottom: var(--space-3);
  line-height: 1.3;
}

.thread-step__text {
  font-size: var(--type-sm);
  color: var(--ink-400);
  line-height: 1.7;
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--duration-slow) var(--ease-out),
              opacity var(--duration-normal);
  opacity: 0;
}

.thread-step.is-active .thread-step__text,
.thread-step:hover .thread-step__text {
  max-height: 200px;
  opacity: 1;
}

.thread-step__links {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-top: var(--space-4);
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--duration-slow) var(--ease-out);
}

.thread-step.is-active .thread-step__links { max-height: 60px; }

.thread-step__tag {
  padding: var(--space-1) var(--space-3);
  border: 1px solid var(--ink-700);
  border-radius: var(--radius-pill);
  font-size: 11px;
  color: var(--ink-400);
  transition: border-color var(--duration-fast), color var(--duration-fast);
}

.thread-step__tag:hover {
  border-color: var(--sienna-500);
  color: var(--sienna-300);
}

/* Thread sidebar panel */
.thread-panel {
  background: rgba(255,255,255,.04);
  border: 1px solid rgba(255,255,255,.07);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  position: sticky;
  top: calc(var(--nav-total) + var(--space-6));
}

.thread-panel__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-5);
  padding-bottom: var(--space-4);
  border-bottom: 1px solid rgba(255,255,255,.06);
}

.thread-panel__title {
  font-size: var(--type-sm);
  font-weight: var(--weight-semibold);
  color: var(--ink-300);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wider);
  font-size: var(--type-xs);
}

.thread-panel__counter {
  font-family: var(--font-editorial);
  font-size: 1.5rem;
  font-weight: var(--weight-bold);
  color: var(--sienna-300);
}

.thread-panel__caption {
  font-family: var(--font-editorial);
  font-size: 1.125rem;
  color: #ffffff;
  line-height: 1.4;
  margin-bottom: var(--space-4);
  min-height: 3em;
}

.thread-panel__source {
  font-size: var(--type-xs);
  color: var(--ink-500);
  font-style: italic;
  margin-bottom: var(--space-5);
  padding: var(--space-3);
  background: rgba(255,255,255,.03);
  border-left: 2px solid var(--sienna-700);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}

.thread-panel__then-now {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3);
  margin-bottom: var(--space-5);
}

.then-now-cell {
  padding: var(--space-3);
  border-radius: var(--radius-md);
}

.then-now-cell--then {
  background: rgba(92, 42, 26, .2);
  border: 1px solid rgba(92, 42, 26, .3);
}

.then-now-cell--now {
  background: rgba(61, 74, 110, .2);
  border: 1px solid rgba(61, 74, 110, .3);
}

.then-now-cell__label {
  font-size: 10px;
  font-weight: var(--weight-bold);
  letter-spacing: var(--tracking-wider);
  text-transform: uppercase;
  margin-bottom: var(--space-1);
}

.then-now-cell--then .then-now-cell__label { color: var(--sienna-300); }
.then-now-cell--now .then-now-cell__label  { color: var(--slate-300); }

.then-now-cell__value {
  font-size: var(--type-xs);
  color: var(--ink-300);
  line-height: 1.5;
}

/* ---- EXPLORE MAP SECTION --------------------------------- */
.explore-section {
  background: var(--color-bg);
}

.explore-section__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
}

@media (min-width: 768px) {
  .explore-section__grid {
    grid-template-columns: 1fr 1fr;
  }
}

.explore-card {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  min-height: 280px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  transition: box-shadow var(--duration-normal);
}

.explore-card:hover { box-shadow: var(--shadow-lg); }

.explore-card__bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  opacity: 0.4;
  transition: opacity var(--duration-slow), transform var(--duration-slow);
}

.explore-card:hover .explore-card__bg {
  opacity: 0.5;
  transform: scale(1.03);
}

.explore-card--map .explore-card__bg {
  background-image:
    repeating-linear-gradient(0deg, transparent, transparent 39px, rgba(255,255,255,.04) 39px, rgba(255,255,255,.04) 40px),
    repeating-linear-gradient(90deg, transparent, transparent 39px, rgba(255,255,255,.04) 39px, rgba(255,255,255,.04) 40px),
    linear-gradient(160deg, var(--slate-700), var(--ink-800));
}

.explore-card--timeline .explore-card__bg {
  background-image:
    linear-gradient(90deg, var(--sienna-700) 0%, transparent 100%),
    linear-gradient(160deg, var(--ink-800), var(--slate-800));
}

.explore-card__gradient {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0,0,0,.85) 30%, transparent);
}

.explore-card__body {
  position: relative;
  padding: var(--space-8);
  z-index: 1;
}

.explore-card__icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  background: rgba(255,255,255,.1);
  border: 1px solid rgba(255,255,255,.15);
  display: grid;
  place-items: center;
  margin-bottom: var(--space-4);
  font-size: 1.3rem;
}

.explore-card__title {
  font-family: var(--font-editorial);
  font-size: 1.375rem;
  font-weight: var(--weight-bold);
  color: #ffffff;
  margin-bottom: var(--space-2);
}

.explore-card__desc {
  font-size: var(--type-sm);
  color: rgba(255,255,255,.6);
  margin-bottom: var(--space-5);
  line-height: 1.6;
}

.explore-card__link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--type-sm);
  font-weight: var(--weight-semibold);
  color: var(--amber-300);
  transition: gap var(--duration-fast);
}

.explore-card__link:hover { gap: var(--space-3); }

/* ---- PEOPLE / POLICY / PLACE MODULE ---------------------- */
.ppp-section {}

.ppp-section__header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-4);
  margin-bottom: var(--space-8);
}

.ppp-tabs {
  display: flex;
  gap: 0;
  border-bottom: 1px solid var(--color-border);
  margin-bottom: var(--space-8);
}

.ppp-tab {
  padding: var(--space-3) var(--space-5);
  font-size: var(--type-sm);
  font-weight: var(--weight-medium);
  color: var(--color-text-secondary);
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
  min-height: 44px;
  cursor: pointer;
  transition: color var(--duration-fast), border-color var(--duration-fast);
}

.ppp-tab.is-active,
.ppp-tab:hover {
  color: var(--color-text-primary);
  border-bottom-color: var(--color-accent);
}
.ppp-tab:active {
  color: var(--color-text-primary);
  opacity: 0.75;
}
.ppp-tab:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: -2px;
  border-radius: var(--radius-sm);
}

.ppp-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-5);
}

@media (min-width: 640px) {
  .ppp-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 1024px) {
  .ppp-grid { grid-template-columns: repeat(4, 1fr); }
}

/* Object card */
.object-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  cursor: pointer;
  transition: box-shadow var(--duration-normal) var(--ease-out), transform var(--duration-normal) var(--ease-out), border-color var(--duration-normal) var(--ease-out);
}

.object-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
  border-color: var(--color-accent);
}

.object-card__image {
  height: 160px;
  background: var(--color-surface-alt);
  position: relative;
  overflow: hidden;
}

.object-card__image-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center top;
  opacity: 0.7;
  transition: transform var(--duration-slow);
  will-change: transform;
}

.object-card:hover .object-card__image-bg { transform: scale(1.05); }
.object-card:active { transform: translateY(0) scale(0.99); box-shadow: var(--shadow-xs); }

.object-card__type-badge {
  position: absolute;
  top: var(--space-3);
  left: var(--space-3);
  padding: 2px var(--space-3);
  border-radius: var(--radius-pill);
  font-size: 10px;
  font-weight: var(--weight-bold);
  letter-spacing: var(--tracking-wider);
  text-transform: uppercase;
}

.badge--person   { background: rgba(61,74,110,.85); color: var(--slate-200); }
.badge--policy   { background: rgba(92,42,26,.85);  color: var(--sienna-200); }
.badge--place    { background: rgba(120,100,40,.85); color: var(--amber-200); }
.badge--event    { background: rgba(30,36,51,.85);   color: var(--slate-300); }

.object-card__body {
  padding: var(--space-5);
}

.object-card__name {
  font-family: var(--font-editorial);
  font-size: 1rem;
  font-weight: var(--weight-bold);
  color: var(--color-text-primary);
  margin-bottom: var(--space-1);
  line-height: 1.3;
}

.object-card__dates {
  font-size: var(--type-xs);
  color: var(--color-text-tertiary);
  margin-bottom: var(--space-3);
}

.object-card__summary {
  font-size: var(--type-sm);
  color: var(--color-text-secondary);
  line-height: 1.6;
  margin-bottom: var(--space-4);
}

.object-card__threads {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.thread-tag {
  padding: 2px var(--space-3);
  border-radius: var(--radius-pill);
  font-size: 11px;
  font-weight: var(--weight-medium);
  background: var(--color-thread-bg);
  color: var(--color-thread-dark);
  border: 1px solid rgba(160, 75, 48, .2);
  transition: background var(--duration-fast), color var(--duration-fast), border-color var(--duration-fast);
}

.thread-tag:hover {
  background: var(--color-thread);
  color: #ffffff;
}

/* ---- THEN NOW SECTION ------------------------------------ */
.then-now-section {
  background: var(--color-surface-alt);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.then-now-split {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-8);
}

@media (min-width: 768px) {
  .then-now-split { grid-template-columns: 1fr 1fr; }
}

.then-now-header {
  text-align: center;
  margin-bottom: var(--space-10);
}

.then-now-header__subtitle {
  font-size: var(--type-sm);
  color: var(--color-text-secondary);
  max-width: 55ch;
  margin: var(--space-3) auto 0;
}

.then-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.then-card__era-bar {
  padding: var(--space-3) var(--space-5);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.then-card__era-bar--then {
  background: var(--sienna-700);
  border-bottom: 1px solid var(--sienna-600);
}

.then-card__era-bar--now {
  background: var(--slate-700);
  border-bottom: 1px solid var(--slate-600);
}

.then-card__era-label {
  font-size: var(--type-xs);
  font-weight: var(--weight-bold);
  letter-spacing: var(--tracking-wider);
  text-transform: uppercase;
  color: rgba(255,255,255,.8);
}

.then-card__year {
  font-family: var(--font-editorial);
  font-size: 1rem;
  font-weight: var(--weight-bold);
  color: rgba(255,255,255,.6);
}

.then-card__body {
  padding: var(--space-6);
}

.then-card__headline {
  font-family: var(--font-editorial);
  font-size: 1.25rem;
  font-weight: var(--weight-bold);
  color: var(--color-text-primary);
  margin-bottom: var(--space-3);
  line-height: 1.3;
}

.then-card__stat {
  font-size: 2rem;
  font-family: var(--font-editorial);
  font-weight: var(--weight-bold);
  color: var(--color-accent-dark);
  margin-bottom: var(--space-1);
}

.then-card__stat-caption {
  font-size: var(--type-sm);
  color: var(--color-text-secondary);
  line-height: 1.5;
  margin-bottom: var(--space-4);
}

.then-card__source-note {
  font-size: var(--type-xs);
  color: var(--color-text-tertiary);
  font-style: italic;
  padding-top: var(--space-4);
  border-top: 1px solid var(--color-border);
}

.then-now-connector {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-4) 0;
}

@media (min-width: 768px) {
  .then-now-connector {
    padding: 0;
  }
}

.then-now-connector__arrow {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--color-surface);
  border: 2px solid var(--color-border);
  display: grid;
  place-items: center;
  color: var(--color-accent-dark);
  font-size: 1.25rem;
}

/* ---- LEARNING MODES -------------------------------------- */
.learning-section {
  background: var(--ink-900);
  color: #ffffff;
}

.audience-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-5);
}

@media (min-width: 640px) {
  .audience-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 1024px) {
  .audience-grid { grid-template-columns: repeat(4, 1fr); }
}

.audience-card {
  padding: var(--space-7);
  border: 1px solid rgba(255,255,255,.07);
  border-radius: var(--radius-lg);
  transition: background var(--duration-normal) var(--ease-out), border-color var(--duration-normal) var(--ease-out), transform var(--duration-normal) var(--ease-out);
  background: rgba(255,255,255,.02);
}

.audience-card:hover {
  background: rgba(255,255,255,.05);
  border-color: rgba(255,255,255,.14);
  transform: translateY(-2px);
}

.audience-card__number {
  font-family: var(--font-editorial);
  font-size: 3rem;
  font-weight: var(--weight-bold);
  color: rgba(255,255,255,.28);
  line-height: 1;
  margin-bottom: var(--space-4);
}

.audience-card__label {
  font-size: var(--type-xs);
  font-weight: var(--weight-bold);
  letter-spacing: var(--tracking-wider);
  text-transform: uppercase;
  color: var(--amber-300);
  margin-bottom: var(--space-3);
}

.audience-card__title {
  font-family: var(--font-editorial);
  font-size: 1.125rem;
  font-weight: var(--weight-bold);
  color: #ffffff;
  margin-bottom: var(--space-3);
  line-height: 1.3;
}

.audience-card__desc {
  font-size: var(--type-sm);
  color: var(--ink-400);
  line-height: 1.65;
  margin-bottom: var(--space-5);
}

.audience-card__links {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.audience-link {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--type-xs);
  color: var(--ink-400);
  transition: color var(--duration-fast);
}

.audience-link::before {
  content: '→';
  color: var(--sienna-400);
  font-size: var(--type-xs);
}

.audience-link:hover { color: var(--amber-300); }

/* ---- SOURCES SHELF --------------------------------------- */
.sources-section {
  background: var(--color-bg);
}

.sources-section__intro {
  max-width: 60ch;
  margin-bottom: var(--space-8);
}

.sources-shelf {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: var(--space-5);
}

.source-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  transition: border-color var(--duration-normal) var(--ease-out), box-shadow var(--duration-normal) var(--ease-out), transform var(--duration-normal) var(--ease-out);
}

.source-card:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--color-accent);
  transform: translateY(-1px);
}

.source-card__type {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: 2px var(--space-3);
  border-radius: var(--radius-pill);
  font-size: 10px;
  font-weight: var(--weight-bold);
  letter-spacing: var(--tracking-wider);
  text-transform: uppercase;
  margin-bottom: var(--space-4);
  background: var(--color-accent-light);
  color: var(--color-accent-dark);
}

.source-card__title {
  font-family: var(--font-editorial);
  font-size: 0.9375rem;
  font-weight: var(--weight-bold);
  color: var(--color-text-primary);
  margin-bottom: var(--space-2);
  line-height: 1.3;
}

.source-card__author {
  font-size: var(--type-xs);
  color: var(--color-text-tertiary);
  margin-bottom: var(--space-3);
}

.source-card__threads {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

/* ---- EDITORIAL SPOTLIGHT --------------------------------- */
.editorial-section {
  background: var(--color-surface-alt);
  border-top: 1px solid var(--color-border);
}

.editorial-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
}

@media (min-width: 768px) {
  .editorial-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (min-width: 1024px) {
  .editorial-grid {
    grid-template-columns: 2fr 1fr 1fr;
  }
}

.editorial-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: box-shadow var(--duration-normal) var(--ease-out), transform var(--duration-normal) var(--ease-out);
}

.editorial-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.editorial-card--featured {
  grid-row: span 2;
}

.editorial-card__image {
  flex-shrink: 0;
  height: 200px;
  background: var(--color-surface-alt);
  position: relative;
  overflow: hidden;
}

.editorial-card--featured .editorial-card__image { height: 280px; }

.editorial-card__image-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  transition: transform var(--duration-slow);
}

.editorial-card:hover .editorial-card__image-bg { transform: scale(1.04); }

.editorial-card__body {
  padding: var(--space-6);
  flex: 1;
  display: flex;
  flex-direction: column;
}

.editorial-card__kicker {
  font-size: 10px;
  font-weight: var(--weight-bold);
  letter-spacing: var(--tracking-wider);
  text-transform: uppercase;
  color: var(--color-thread);
  margin-bottom: var(--space-3);
}

.editorial-card__title {
  font-family: var(--font-editorial);
  font-size: 1.125rem;
  font-weight: var(--weight-bold);
  color: var(--color-text-primary);
  line-height: 1.3;
  margin-bottom: var(--space-3);
}

.editorial-card--featured .editorial-card__title {
  font-size: 1.5rem;
}

.editorial-card__summary {
  font-size: var(--type-sm);
  color: var(--color-text-secondary);
  line-height: 1.65;
  flex: 1;
  margin-bottom: var(--space-5);
}

.editorial-card__meta {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-size: var(--type-xs);
  color: var(--color-text-tertiary);
  padding-top: var(--space-4);
  border-top: 1px solid var(--color-border);
  margin-top: auto;
}

.editorial-card__meta-dot {
  width: 3px;
  height: 3px;
  border-radius: 50%;
  background: var(--color-border);
}

/* ---- SECTION HEADERS ------------------------------------- */
.section-header {
  margin-bottom: var(--space-10);
}

.section-header--centered { text-align: center; }

.section-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  font-size: var(--type-xs);
  font-weight: var(--weight-bold);
  letter-spacing: var(--tracking-widest);
  text-transform: uppercase;
  color: var(--color-thread);
  margin-bottom: var(--space-5);
}

.section-eyebrow::before {
  content: '';
  display: block;
  width: 20px;
  height: 2px;
  background: currentColor;
  border-radius: 2px;
  flex-shrink: 0;
}

.section-title {
  font-family: var(--font-editorial);
  font-size: clamp(1.75rem, 3.5vw, 2.5rem);
  font-weight: var(--weight-bold);
  letter-spacing: var(--tracking-tight);
  color: var(--color-text-primary);
  line-height: var(--leading-snug);
}

.section-title--light { color: #ffffff; }

.section-subtitle {
  margin-top: var(--space-4);
  font-size: clamp(1rem, 1.3vw, 1.125rem);
  color: var(--color-text-secondary);
  max-width: 60ch;
  line-height: 1.75;
}

.section-subtitle--light { color: var(--ink-400); }

/* View all link */
.view-all {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--type-sm);
  font-weight: var(--weight-semibold);
  color: var(--color-accent-dark);
  border-bottom: 1px solid transparent;
  transition: border-color var(--duration-fast), color var(--duration-fast);
}

.view-all:hover {
  border-bottom-color: var(--color-accent-dark);
  gap: var(--space-3);
}

.view-all--light { color: var(--amber-300); }
.view-all--light:hover { border-bottom-color: var(--amber-300); }

/* ---- FOOTER ---------------------------------------------- */
.site-footer {
  background: var(--ink-900);
  color: var(--ink-400);
  padding-top: var(--space-16);
  padding-bottom: var(--space-8);
}

.footer-top {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-10);
  padding-bottom: var(--space-12);
  border-bottom: 1px solid var(--ink-800);
  margin-bottom: var(--space-8);
}

@media (min-width: 768px) {
  .footer-top { grid-template-columns: 2fr 1fr 1fr 1fr; }
}

.footer-brand {}

.footer-wordmark {
  font-family: var(--font-editorial);
  font-size: 1.75rem;
  font-weight: var(--weight-bold);
  color: #ffffff;
  letter-spacing: -0.025em;
  margin-bottom: var(--space-3);
}

.footer-mission {
  font-size: var(--type-sm);
  color: var(--ink-500);
  line-height: 1.7;
  max-width: 36ch;
  margin-bottom: var(--space-6);
}

.footer-actions {
  display: flex;
  gap: var(--space-3);
  flex-wrap: wrap;
}

.footer-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-5);
  border-radius: var(--radius-md);
  font-size: var(--type-xs);
  font-weight: var(--weight-semibold);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  transition: background var(--duration-fast), color var(--duration-fast), border-color var(--duration-fast);
}

.footer-btn--primary {
  background: var(--amber-400);
  color: var(--ink-900);
}
.footer-btn--primary:hover { background: var(--amber-300); }

.footer-btn--outline {
  border: 1px solid var(--ink-700);
  color: var(--ink-400);
}
.footer-btn--outline:hover {
  border-color: var(--ink-500);
  color: var(--ink-300);
}

.footer-nav-group {}

.footer-nav-heading {
  font-size: var(--type-xs);
  font-weight: var(--weight-bold);
  letter-spacing: var(--tracking-wider);
  text-transform: uppercase;
  color: var(--ink-300);
  margin-bottom: var(--space-5);
}

.footer-nav-links {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.footer-nav-link {
  font-size: var(--type-sm);
  color: var(--ink-500);
  transition: color var(--duration-fast);
}
.footer-nav-link:hover { color: var(--ink-200); }

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  align-items: center;
  justify-content: space-between;
}

.footer-legal {
  font-size: var(--type-xs);
  color: var(--ink-700);
}

.footer-trust {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  flex-wrap: wrap;
}

.footer-trust-item {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--type-xs);
  color: var(--ink-600);
}

.footer-trust-icon {
  width: 14px;
  height: 14px;
  color: var(--ink-600);
}

/* ---- MOBILE NAV DRAWER ----------------------------------- */
.mobile-nav {
  position: fixed;
  inset: 0;
  z-index: var(--z-overlay);
  pointer-events: none;
}

.mobile-nav__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,.7);
  opacity: 0;
  transition: opacity var(--duration-normal);
}

.mobile-nav__drawer {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  width: min(340px, 90vw);
  background: var(--ink-900);
  border-left: 1px solid var(--ink-800);
  padding: var(--space-6);
  transform: translateX(100%);
  transition: transform var(--duration-normal) var(--ease-out);
  overflow-y: auto;
}

.mobile-nav.is-open { pointer-events: all; }
.mobile-nav.is-open .mobile-nav__backdrop { opacity: 1; }
.mobile-nav.is-open .mobile-nav__drawer { transform: translateX(0); }

.mobile-nav__close {
  display: flex;
  justify-content: flex-end;
  margin-bottom: var(--space-8);
}

.mobile-nav__close-btn {
  color: var(--ink-400);
  padding: var(--space-2);
  font-size: 1.25rem;
}

.mobile-nav__links {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.mobile-nav__link {
  display: block;
  padding: var(--space-4) var(--space-4);
  font-size: 1.125rem;
  font-weight: var(--weight-medium);
  color: var(--ink-200);
  border-radius: var(--radius-md);
  transition: background var(--duration-fast);
}

.mobile-nav__link:hover { background: rgba(255,255,255,.06); }

.mobile-nav__divider {
  height: 1px;
  background: var(--ink-800);
  margin: var(--space-4) 0;
}

.mobile-nav__utilities {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.mobile-nav__utility-link {
  padding: var(--space-3) var(--space-4);
  font-size: var(--type-sm);
  color: var(--ink-500);
  transition: color var(--duration-fast);
}

.mobile-nav__utility-link:hover { color: var(--ink-300); }

/* ---- THREAD PAGE SPECIFIC STYLES ------------------------- */
.thread-page-hero {
  background: var(--ink-900);
  padding-top: var(--space-16);
  padding-bottom: var(--space-16);
  border-bottom: 1px solid var(--ink-800);
}

.thread-breadcrumb,
.person-breadcrumb {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--type-xs);
  color: var(--ink-500);
  margin-bottom: var(--space-6);
}

.thread-breadcrumb a, .person-breadcrumb a { color: var(--ink-500); transition: color var(--duration-fast); }
.thread-breadcrumb a:hover, .person-breadcrumb a:hover { color: var(--amber-300); }
.thread-breadcrumb__sep, .person-breadcrumb__sep { color: var(--ink-700); }

/* Person breadcrumb lives inside the dark hero */
.person-breadcrumb {
  padding-top: var(--space-2);
  color: rgba(255,255,255,.45);
}
.person-breadcrumb a { color: rgba(255,255,255,.45); }
.person-breadcrumb a:hover { color: rgba(255,255,255,.85); }
.person-breadcrumb__sep { color: rgba(255,255,255,.2); }

.thread-page-label {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-1) var(--space-3);
  background: rgba(160, 75, 48, .15);
  border: 1px solid rgba(160, 75, 48, .25);
  border-radius: var(--radius-pill);
  font-size: var(--type-xs);
  font-weight: var(--weight-bold);
  letter-spacing: var(--tracking-wider);
  text-transform: uppercase;
  color: var(--sienna-300);
  margin-bottom: var(--space-5);
}

.thread-page-title {
  font-family: var(--font-editorial);
  font-size: clamp(2.25rem, 5vw, 3.75rem);
  font-weight: var(--weight-bold);
  line-height: 1.1;
  letter-spacing: -0.03em;
  color: #ffffff;
  margin-bottom: var(--space-5);
}

.thread-page-description {
  font-size: clamp(1rem, 1.5vw, 1.2rem);
  color: var(--ink-300);
  line-height: 1.7;
  max-width: 65ch;
  margin-bottom: var(--space-8);
}

.thread-meta-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-6);
  align-items: center;
}

.thread-meta-item {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.thread-meta-item__label {
  font-size: 10px;
  font-weight: var(--weight-bold);
  letter-spacing: var(--tracking-wider);
  text-transform: uppercase;
  color: var(--ink-600);
}

.thread-meta-item__value {
  font-size: var(--type-sm);
  font-weight: var(--weight-medium);
  color: var(--ink-300);
}

/* Thread page layout */
.thread-page-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-12);
  padding-block: var(--space-16);
}

@media (min-width: 960px) {
  .thread-page-layout {
    grid-template-columns: 1fr 320px;
    align-items: start;
  }
}

.thread-page-sidebar {
  position: sticky;
  top: calc(var(--nav-total) + var(--space-6));
}

/* Scrollytelling chapter */
.chapter {
  margin-bottom: var(--space-16);
  scroll-margin-top: calc(var(--nav-total) + var(--space-8));
}

.chapter__number {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  font-size: var(--type-xs);
  font-weight: var(--weight-bold);
  letter-spacing: var(--tracking-wider);
  text-transform: uppercase;
  color: var(--sienna-500);
  margin-bottom: var(--space-5);
}

.chapter__number::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--color-border);
  display: block;
  min-width: 40px;
}

.chapter__title {
  font-family: var(--font-editorial);
  font-size: clamp(1.5rem, 3vw, 2.25rem);
  font-weight: var(--weight-bold);
  color: var(--color-text-primary);
  line-height: 1.2;
  letter-spacing: -0.025em;
  margin-bottom: var(--space-5);
}

.chapter__subtitle {
  font-size: var(--type-sm);
  font-weight: var(--weight-semibold);
  color: var(--color-text-tertiary);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wider);
  margin-bottom: var(--space-8);
}

.chapter__body {
  font-size: 1.0625rem;
  line-height: 1.8;
  color: var(--color-text-primary);
  margin-bottom: var(--space-8);
}

.chapter__body p { margin-bottom: var(--space-5); }
.chapter__body p:last-child { margin-bottom: 0; }

.chapter__body a {
  color: var(--color-accent-dark);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

.chapter__body strong { font-weight: var(--weight-semibold); }

/* Pull quote */
.pull-quote {
  border-left: 3px solid var(--sienna-400);
  padding: var(--space-5) var(--space-8);
  margin: var(--space-8) 0;
  background: var(--color-surface-alt);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
}

.pull-quote__text {
  font-family: var(--font-editorial);
  font-size: 1.25rem;
  color: var(--color-text-primary);
  line-height: 1.6;
  font-style: italic;
  margin-bottom: var(--space-3);
}

.pull-quote__attribution {
  font-size: var(--type-xs);
  color: var(--color-text-tertiary);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wider);
}

/* Stat callout */
.stat-callout {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: var(--space-5);
  margin: var(--space-8) 0;
  padding: var(--space-6);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
}

.stat-item {}

.stat-item__number {
  font-family: var(--font-editorial);
  font-size: 2.25rem;
  font-weight: var(--weight-bold);
  color: var(--sienna-500);
  line-height: 1;
  margin-bottom: var(--space-2);
}

.stat-item__label {
  font-size: var(--type-sm);
  color: var(--color-text-secondary);
  line-height: 1.5;
}

/* Evidence box */
.evidence-box {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin: var(--space-8) 0;
}

.evidence-box__header {
  padding: var(--space-4) var(--space-6);
  background: var(--color-surface-alt);
  border-bottom: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.evidence-box__header-label {
  font-size: var(--type-xs);
  font-weight: var(--weight-bold);
  letter-spacing: var(--tracking-wider);
  text-transform: uppercase;
  color: var(--color-text-secondary);
}

.evidence-box__body {
  padding: var(--space-6);
}

.evidence-item {
  display: flex;
  gap: var(--space-4);
  padding: var(--space-4) 0;
  border-bottom: 1px solid var(--color-border);
}

.evidence-item:last-child { border-bottom: none; }

.evidence-item__source-type {
  flex-shrink: 0;
  padding: 2px var(--space-3);
  border-radius: var(--radius-pill);
  font-size: 10px;
  font-weight: var(--weight-bold);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  height: fit-content;
  background: var(--color-accent-light);
  color: var(--color-accent-dark);
}

.evidence-item__content {}

.evidence-item__title {
  font-weight: var(--weight-semibold);
  font-size: var(--type-sm);
  color: var(--color-text-primary);
  margin-bottom: var(--space-1);
}

.evidence-item__meta {
  font-size: var(--type-xs);
  color: var(--color-text-tertiary);
}

/* Relation links */
.relations-block {
  margin: var(--space-8) 0;
}

.relations-block__title {
  font-size: var(--type-xs);
  font-weight: var(--weight-bold);
  letter-spacing: var(--tracking-wider);
  text-transform: uppercase;
  color: var(--color-text-tertiary);
  margin-bottom: var(--space-4);
}

.relations-grid {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
}

.relation-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
  font-size: var(--type-sm);
  color: var(--color-text-secondary);
  transition: border-color var(--duration-fast), color var(--duration-fast), background var(--duration-fast);
}

.relation-link:hover {
  border-color: var(--color-accent);
  color: var(--color-accent-dark);
  background: var(--color-accent-light);
}

.relation-link__type {
  font-size: 10px;
  font-weight: var(--weight-bold);
  letter-spacing: var(--tracking-wider);
  text-transform: uppercase;
  color: var(--color-text-tertiary);
  padding-right: var(--space-2);
  border-right: 1px solid var(--color-border);
}

/* Chapter nav sidebar */
.chapter-nav {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin-bottom: var(--space-6);
}

.chapter-nav__title {
  padding: var(--space-4) var(--space-5);
  background: var(--color-surface-alt);
  border-bottom: 1px solid var(--color-border);
  font-size: var(--type-xs);
  font-weight: var(--weight-bold);
  letter-spacing: var(--tracking-wider);
  text-transform: uppercase;
  color: var(--color-text-tertiary);
}

.chapter-nav__list {
  padding: var(--space-3) 0;
}

.chapter-nav__item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-5);
  transition: background var(--duration-fast);
  cursor: pointer;
}

.chapter-nav__item:hover { background: var(--color-surface-alt); }

.chapter-nav__item.is-active {
  background: var(--color-accent-light);
}

.chapter-nav__item.is-active .chapter-nav__item-title {
  color: var(--color-accent-dark);
}

.chapter-nav__item-num {
  font-size: 10px;
  font-weight: var(--weight-bold);
  color: var(--color-text-tertiary);
  padding-top: 2px;
  flex-shrink: 0;
}

.chapter-nav__item-title {
  font-size: var(--type-sm);
  color: var(--color-text-secondary);
  line-height: 1.4;
}

/* Causal chain visual */
.causal-chain {
  display: flex;
  flex-direction: column;
  gap: 0;
  margin: var(--space-8) 0;
  position: relative;
}

.causal-chain::before {
  content: '';
  position: absolute;
  left: 19px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(to bottom, var(--sienna-400), var(--slate-400));
  z-index: 0;
}

.causal-node {
  display: flex;
  gap: var(--space-5);
  align-items: flex-start;
  position: relative;
  z-index: 1;
  padding-bottom: var(--space-6);
}

.causal-node:last-child { padding-bottom: 0; }

.causal-node__dot {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  flex-shrink: 0;
  font-size: var(--type-xs);
  font-weight: var(--weight-bold);
  border: 2px solid;
}

.causal-node--cause    .causal-node__dot { background: var(--sienna-700); border-color: var(--sienna-400); color: var(--sienna-200); }
.causal-node--event    .causal-node__dot { background: var(--ink-700);    border-color: var(--ink-400);    color: var(--ink-200);    }
.causal-node--policy   .causal-node__dot { background: var(--slate-700);  border-color: var(--slate-400);  color: var(--slate-200);  }
.causal-node--effect   .causal-node__dot { background: var(--amber-700);  border-color: var(--amber-400);  color: var(--amber-200);  }
.causal-node--present  .causal-node__dot { background: var(--slate-700);  border-color: var(--slate-300);  color: var(--slate-200);  }

.causal-node__content {
  flex: 1;
  padding-top: var(--space-2);
}

.causal-node__type {
  font-size: 10px;
  font-weight: var(--weight-bold);
  letter-spacing: var(--tracking-wider);
  text-transform: uppercase;
  color: var(--color-text-tertiary);
  margin-bottom: var(--space-1);
}

.causal-node__title {
  font-family: var(--font-editorial);
  font-size: 1rem;
  font-weight: var(--weight-bold);
  color: var(--color-text-primary);
  margin-bottom: var(--space-2);
}

.causal-node__summary {
  font-size: var(--type-sm);
  color: var(--color-text-secondary);
  line-height: 1.6;
}

/* Read next */
.read-next {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  margin-bottom: var(--space-6);
}

.read-next__title {
  font-size: var(--type-xs);
  font-weight: var(--weight-bold);
  letter-spacing: var(--tracking-wider);
  text-transform: uppercase;
  color: var(--color-text-tertiary);
  margin-bottom: var(--space-4);
}

.read-next__items {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.read-next__item {
  display: flex;
  gap: var(--space-3);
  align-items: flex-start;
  transition: opacity var(--duration-fast);
}

.read-next__item:hover { opacity: 0.75; }

.read-next__type-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
  margin-top: 5px;
}

.dot--thread  { background: var(--sienna-400); }
.dot--policy  { background: var(--slate-400); }
.dot--person  { background: var(--amber-400); }
.dot--place   { background: var(--ink-500); }

.read-next__item-title {
  font-size: var(--type-sm);
  font-weight: var(--weight-medium);
  color: var(--color-text-primary);
  line-height: 1.4;
}

.read-next__item-type {
  font-size: 10px;
  color: var(--color-text-tertiary);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wide);
}

/* Source citation inline */
.source-cite {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: 0 var(--space-2);
  border-radius: var(--radius-sm);
  background: var(--color-accent-light);
  font-size: var(--type-xs);
  font-weight: var(--weight-semibold);
  color: var(--color-accent-dark);
  vertical-align: middle;
  cursor: pointer;
  transition: background var(--duration-fast);
}

.source-cite:hover { background: var(--amber-200); }

/* Progress bar */
.reading-progress {
  position: fixed;
  top: var(--nav-total);
  left: 0;
  right: 0;
  height: 3px;
  background: rgba(255,255,255,.1);
  z-index: var(--z-sticky);
}

.reading-progress__bar {
  height: 100%;
  background: linear-gradient(to right, var(--sienna-400), var(--amber-400));
  width: 0%;
  transition: width 100ms linear;
}

/* Animations */
@keyframes fade-up {
  from { opacity: 0; transform: translateY(16px); }
  to   { opacity: 1; transform: translateY(0); }
}

.animate-fade-up {
  animation: fade-up 0.6s var(--ease-out) both;
}

.animate-delay-100 { animation-delay: 100ms; }
.animate-delay-200 { animation-delay: 200ms; }
.animate-delay-250 { animation-delay: 250ms; }
.animate-delay-300 { animation-delay: 300ms; }
.animate-delay-400 { animation-delay: 400ms; }

/* Intersection fade-in */
.reveal {
  opacity: 0;
  transition: opacity 0.6s var(--ease-out), transform 0.6s var(--ease-out);
  will-change: opacity, transform;
}

@media (prefers-reduced-motion: no-preference) {
  .reveal { transform: translateY(20px); }
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
  will-change: auto; /* release compositor layer once animation is done */
}

/* Disable all non-essential animations for users who prefer reduced motion */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
}

/* Responsive helpers */
@media (max-width: 767px) {
  .hide-mobile { display: none !important; }
}

@media (min-width: 768px) {
  .hide-desktop { display: none !important; }
}

/* ============================================================
   PRINT — global (applies to all pages)
   ============================================================ */
@media print {
  .site-nav,
  .utility-bar,
  .mobile-nav,
  .search-overlay,
  .site-footer,
  .hero-scroll-hint { display: none !important; }

  * { background: #fff !important; color: #000 !important; box-shadow: none !important; }
  body { font-size: 12pt; line-height: 1.6; }
  a[href^="http"]::after { content: " (" attr(href) ")"; font-size: 9pt; }
  .reveal { opacity: 1 !important; transform: none !important; }
  img { max-width: 100% !important; }
}

/* ============================================================
   JOURNEY NAV — sequential prev/next thread navigation
   ============================================================ */
.journey-nav {
  background: var(--ink-900);
  border-top: 1px solid rgba(255,255,255,.08);
  border-bottom: 1px solid rgba(255,255,255,.08);
  padding: var(--space-6) 0;
}

.journey-nav__inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-6);
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: var(--space-4);
}

.journey-nav__link {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  text-decoration: none;
  color: var(--ink-300);
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-lg);
  border: 1px solid transparent;
  transition: all .18s ease;
  min-width: 0;
}

.journey-nav__link:hover {
  background: rgba(255,255,255,.05);
  border-color: rgba(255,255,255,.1);
  color: #fff;
}

.journey-nav__link--prev { justify-content: flex-start; }
.journey-nav__link--next { justify-content: flex-end; text-align: right; }
.journey-nav__link--empty { pointer-events: none; }

.journey-nav__link-inner {
  display: flex;
  flex-direction: column;
  gap: 4px;
  min-width: 0;
}

.journey-nav__link--next .journey-nav__link-inner {
  align-items: flex-end;
}

.journey-nav__title {
  font-size: var(--type-sm);
  font-weight: var(--weight-semibold);
  color: inherit;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 220px;
  display: block;
}

.journey-nav__center {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2);
  flex-shrink: 0;
  padding: 0 var(--space-4);
}

.journey-nav__dots {
  display: flex;
  align-items: center;
  gap: 2px;
  margin-bottom: 2px;
}

.journey-nav__pos {
  display: flex;
  justify-content: center;
}

.journey-nav__count {
  font-size: 0.68rem;
  color: var(--ink-500);
  letter-spacing: 0.05em;
  white-space: nowrap;
}

@media (max-width: 640px) {
  .journey-nav__inner {
    grid-template-columns: 1fr 1fr;
    grid-template-rows: auto auto;
    gap: var(--space-3);
  }
  .journey-nav__center {
    grid-column: 1 / -1;
    order: -1;
    border-bottom: 1px solid rgba(255,255,255,.06);
    padding-bottom: var(--space-3);
  }
  .journey-nav__title { max-width: 140px; }
}

/* ============================================================
   CHAIN — Accessibility & Design Polish (Claude AI Audit Fixes)
   ============================================================ */

/* ---- 1. REDUCED MOTION ------------------------------------ */
/* Respect users who prefer no animations — disable all motion */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* ---- 2. CONTRAST IMPROVEMENTS ---------------------------- */
/* Boost tertiary text from #909090 → #767676 (WCAG AA on white) */
:root {
  --ink-400: #767676;
}

/* Utility bar links: lift from ink-400 to ink-300 for better legibility */
.utility-bar__message { color: var(--ink-300); }
.utility-bar__link    { color: var(--ink-300); }

/* Context ribbon: bump font-size from 11px → 12px for readability */
.context-ribbon,
.context-ribbon__stat,
.context-ribbon__link { font-size: var(--type-xs); }  /* 12px */

/* Context ribbon: more breathing room (36px → 40px) */
.context-ribbon__inner { height: 40px; }

/* ---- 3. ENHANCED FOCUS STATES ----------------------------- */
/* More visible, thicker outlines on all interactive elements */
:focus-visible {
  outline: 3px solid var(--color-accent);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

/* High-contrast mode enhancement */
@media (prefers-contrast: more) {
  :focus-visible {
    outline-width: 4px;
    outline-color: #ff8800;
  }
}

/* Nav links: explicit focus indicator on dark bg */
.site-nav__link:focus-visible,
.nav-search-btn:focus-visible,
.theme-toggle:focus-visible,
.context-ribbon__link:focus-visible {
  outline: 3px solid var(--amber-300);
  outline-offset: 2px;
}

/* ---- 4. HOVER STATE CONSISTENCY --------------------------- */
/* Any clickable <a> or <button> without a hover state gets a subtle one */

/* Sidebar cards — make them feel interactive when linked */
.sidebar-card[href],
a.sidebar-card {
  transition: box-shadow var(--duration-fast) var(--ease-out),
              border-color var(--duration-fast) var(--ease-out);
}
a.sidebar-card:hover {
  border-color: var(--color-accent);
  box-shadow: var(--shadow-sm);
}

/* Entry items — subtle left-bar reveal on hover */
.entry-item {
  padding-left: var(--space-4);
  border-left: 3px solid transparent;
  transition: border-color var(--duration-fast);
}
.entry-item:hover {
  border-left-color: var(--color-accent);
}
/* For thread pages using inline styles (acc variable) */
[style*="--acc"] .entry-item:hover {
  border-left-color: var(--acc, var(--color-accent));
}

/* Progress bar dots — add pointer cursor */
.context-ribbon__progress-dot { cursor: default; }
.context-ribbon__progress-dot--active {
  transform: scale(1.5);
  box-shadow: 0 0 0 2px rgba(224,122,0,.3);
}

/* ---- 5. RESPONSIVE NAV MOBILE MENU ----------------------- */
/* Mobile nav overlay */
.mobile-nav {
  position: fixed;
  inset: 0;
  background: var(--ink-900);
  z-index: var(--z-overlay);
  display: flex;
  flex-direction: column;
  padding: var(--space-8) clamp(1.25rem, 5vw, 3rem);
  transform: translateX(100%);
  transition: transform var(--duration-normal) var(--ease-out);
  visibility: hidden;
}
.mobile-nav.is-open {
  transform: translateX(0);
  visibility: visible;
}
.mobile-nav__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-10);
  padding-bottom: var(--space-6);
  border-bottom: 1px solid rgba(255,255,255,.08);
}
.mobile-nav__links {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}
.mobile-nav__link {
  font-family: var(--font-editorial);
  font-size: 1.75rem;
  font-weight: var(--weight-bold);
  color: var(--ink-200);
  padding: var(--space-3) 0;
  border-bottom: 1px solid rgba(255,255,255,.05);
  transition: color var(--duration-fast);
  letter-spacing: var(--tracking-tight);
}
.mobile-nav__link:hover { color: var(--amber-300); }
.mobile-nav__close {
  width: 44px; height: 44px;
  display: flex; align-items: center; justify-content: center;
  color: var(--ink-400);
  border-radius: var(--radius-md);
  transition: color var(--duration-fast), background var(--duration-fast);
}
.mobile-nav__close:hover { color: #fff; background: rgba(255,255,255,.08); }

/* ---- 6. IMPROVED LINE LENGTH CAP AT WIDE VIEWPORTS ------- */
/* Ensure prose never exceeds readable width in thread bodies */
.entry-item__body,
.thread-body .entry-item__body {
  max-width: 75ch;
}

/* Argument bar text — cap at comfortable reading width */
.argument-bar__text { max-width: 760px; }

/* ---- 7. BUTTON SIZE — minimum touch targets --------------- */
/* Ensure all small buttons hit 44px min touch target */
.btn, .btn--ghost, .btn--primary, .btn--secondary {
  min-height: 44px;
}
.btn--sm {
  min-height: 36px;
  padding: var(--space-2) var(--space-4);
  font-size: var(--type-xs);
}

/* ---- 8. SEARCH PAGE RESULT CARDS — hover polish ---------- */
.search-result-item {
  border-radius: var(--radius-lg);
  transition: background var(--duration-fast), box-shadow var(--duration-fast);
}
.search-result-item:hover {
  background: var(--color-surface);
  box-shadow: var(--shadow-sm);
}

/* ---- 9. FOOTER LINK HOVER CLARITY ------------------------ */
.site-footer a:hover {
  color: var(--amber-300);
  text-decoration-color: var(--amber-300);
}

/* ---- 10. SCROLL-TRIGGERED REVEAL — respect reduced motion - */
.reveal {
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 0.5s var(--ease-out), transform 0.5s var(--ease-out);
}
.reveal.is-visible {
  opacity: 1;
  transform: none;
}
@media (prefers-reduced-motion: reduce) {
  .reveal, .reveal.is-visible {
    opacity: 1 !important;
    transform: none !important;
    transition: none !important;
  }
}