/* ==========================================================================
   DAI 2026 — Conference site styles
   Built on the CodeAgent Connect design system tokens.
   Palette: warm vermillion (replaces the system's teal) for a HK-leaning,
   editorial conference look.
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Newsreader:ital,opsz,wght@0,6..72,400;0,6..72,500;0,6..72,600;0,6..72,700;1,6..72,400;1,6..72,500&family=Inter:wght@400;500;600;700&family=JetBrains+Mono:wght@400;500;600&display=swap');

/* --------------------------------------------------------------------------
   Tokens — academic conference (cool off-white + crimson + Newsreader serif)
   -------------------------------------------------------------------------- */
:root {
  color-scheme: light;

  /* Pure white surfaces */
  --bg:             #ffffff;
  --bg-surface:     #ffffff;
  --bg-elevated:    #ffffff;
  --bg-paper:       #ffffff;

  /* Borders — cool grey-blue lean */
  --border:         #d5d7d6;
  --border-strong:  #969a9a;

  /* Text — readable black body copy + blue headings */
  --text:           #14181f;
  --text-secondary: #343a45;
  --text-muted:     #666d78;
  --heading:        #3c4990;

  /* Accent — same blue family */
  --accent:         #3c4990;
  --accent-strong:  #2f3a78;
  --accent-soft:    rgba(60, 73, 144, 0.10);
  --accent-tint:    rgba(60, 73, 144, 0.04);

  /* Highlight — same blue family, with hero 2026 locked separately */
  --highlight:        #5362b2;
  --highlight-strong: #3c4990;
  --highlight-soft:   rgba(60, 73, 144, 0.12);

  /* Status (warm-side) */
  --ok:             #4f8a5a;
  --warn:           #c98a2c;
  --bad:            #b8463a;
  --neutral:        #6d7ea7;

  /* Shadow (rare) */
  --shadow:         0 8px 28px rgba(60, 38, 18, 0.07);
  --shadow-strong:  0 18px 50px rgba(60, 38, 18, 0.14);

  /* Radii */
  --row-radius:     6px;
  --panel-radius:   8px;
  --input-radius:   6px;

  /* Motion */
  --motion-fast:    140ms ease;
  --motion-medium:  240ms cubic-bezier(0.2, 0.8, 0.2, 1);

  /* Type families */
  --font-sans:   "Inter", ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont,
                 "Segoe UI", "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --font-serif:  "Newsreader", "Source Serif 4", "Iowan Old Style", "Apple Garamond",
                 Georgia, "Times New Roman", serif;
  --font-mono:   "JetBrains Mono", ui-monospace, "SF Mono", Menlo, monospace;

  /* Public-web type scale (overrides dashboard) */
  --fs-hero:        clamp(64px, 9vw, 132px);
  --fs-display:     clamp(40px, 5vw, 60px);
  --fs-h2:          clamp(26px, 3.2vw, 40px);
  --fs-h3:          20px;
  --fs-body:        16px;
  --fs-body-sm:     14px;
  --fs-meta:        12px;
  --fs-eyebrow:     12px;
  --fs-kicker:      11px;

  --tracking-kicker:  0.18em;
  --tracking-eyebrow: 0.10em;
  --tracking-tight:   -0.02em;

  --lh-tight:       1.02;
  --lh-snug:        1.18;
  --lh-body:        1.62;

  /* Layout */
  --content-max:    1280px;
  --gutter:         clamp(20px, 4vw, 56px);
  --topbar-h:       84px;

  font-family: var(--font-sans);
  font-feature-settings: "cv11", "ss01", "ss03";
}

[data-theme="dark"] {
  color-scheme: dark;
  --bg:             #0c1018;
  --bg-surface:     #141925;
  --bg-elevated:    #1d2331;
  --bg-paper:       #10141d;

  --border:         #232b3a;
  --border-strong:  #444e63;

  --text:           #eef0f4;
  --text-secondary: #c0c6d1;
  --text-muted:     #8b94a3;
  --heading:        #a4c2e8;

  --accent:         #7aa3d8;
  --accent-strong:  #a4c2e8;
  --accent-soft:    rgba(122, 163, 216, 0.14);
  --accent-tint:    rgba(122, 163, 216, 0.05);

  --highlight:        #e64755;
  --highlight-strong: #f37380;
  --highlight-soft:   rgba(230, 71, 85, 0.16);

  --ok:             #74c388;
  --warn:           #e1b25b;
  --bad:            #e8736b;

  --shadow:         0 8px 28px rgba(0, 0, 0, 0.35);
}

/* Alternate accent palettes (Tweaks-controlled).
   Default "navy" matches the official DAI 2026 logo. */
[data-accent="crimson"] {
  --accent:        #c8202d;
  --accent-strong: #a4131e;
  --accent-soft:   rgba(200, 32, 45, 0.08);
  --accent-tint:   rgba(200, 32, 45, 0.03);
}
[data-accent="crimson"][data-theme="dark"] {
  --accent:        #ea5a66;
  --accent-strong: #f47e88;
  --accent-soft:   rgba(234, 90, 102, 0.14);
}

[data-accent="ink"] {
  --accent:        #14181f;
  --accent-strong: #000000;
  --accent-soft:   rgba(20, 24, 31, 0.08);
  --accent-tint:   rgba(20, 24, 31, 0.03);
}
[data-accent="ink"][data-theme="dark"] {
  --accent:        #e4e7ee;
  --accent-strong: #ffffff;
  --accent-soft:   rgba(228, 231, 238, 0.12);
}

/* --------------------------------------------------------------------------
   Reset / base
   -------------------------------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
html, body {
  max-width: 100%;
  overflow-x: hidden;
}
body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: var(--fs-body);
  font-weight: 500;
  line-height: var(--lh-body);
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  font-feature-settings: "cv11", "ss01";
  transition: background-color var(--motion-medium), color var(--motion-medium);
}

img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; }

::selection { background: var(--accent); color: var(--bg-surface); }

.skip-link {
  position: absolute; left: -9999px; top: 0;
  background: var(--text); color: var(--bg-surface);
  padding: 8px 12px; font-size: var(--fs-body-sm);
}
.skip-link:focus { left: 12px; top: 12px; z-index: 50; }

/* --------------------------------------------------------------------------
   Layout primitives
   -------------------------------------------------------------------------- */
.container {
  width: 100%;
  max-width: var(--content-max);
  margin: 0 auto;
  padding-inline: var(--gutter);
}

.rule { height: 1px; background: var(--border); border: 0; margin: 0; }
.rule-strong { height: 1px; background: var(--border-strong); border: 0; margin: 0; }

/* --------------------------------------------------------------------------
   Typography
   -------------------------------------------------------------------------- */
.eyebrow {
  font-family: var(--font-mono);
  font-size: var(--fs-eyebrow);
  text-transform: uppercase;
  letter-spacing: var(--tracking-eyebrow);
  color: var(--text-muted);
  font-weight: 500;
  margin: 0;
}

.kicker {
  font-family: var(--font-mono);
  font-size: var(--fs-kicker);
  text-transform: uppercase;
  letter-spacing: var(--tracking-kicker);
  color: var(--accent);
  font-weight: 500;
  margin: 0 0 16px;
  display: flex;
  align-items: center;
  gap: 12px;
}
.kicker::before {
  content: ""; display: block; width: 32px; height: 1px;
  background: var(--accent);
}

h1, h2, h3, h4 { color: var(--heading); margin: 0; }
h1, h2 {
  font-family: var(--font-serif);
  font-weight: 600;
  font-feature-settings: "ss01", "lnum";
}
h3, h4 { font-family: var(--font-sans); font-weight: 650; }
h2 { font-size: var(--fs-h2); line-height: var(--lh-snug); letter-spacing: -0.015em; }
h3 { font-size: var(--fs-h3); line-height: var(--lh-snug); }
h3 a:hover { color: var(--accent-strong); }

p { margin: 0; }
.mono, time, .num { font-family: var(--font-mono); font-variant-numeric: tabular-nums; }

/* --------------------------------------------------------------------------
   Top navigation
   -------------------------------------------------------------------------- */
.topbar {
  position: sticky;
  top: 0;
  z-index: 30;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: saturate(140%) blur(8px);
  -webkit-backdrop-filter: saturate(140%) blur(8px);
  border-bottom: 1px solid var(--border);
}
.topbar .container {
  max-width: 1680px;
}

.topbar-inner {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  height: var(--topbar-h);
  gap: 22px;
}

.topbar-brand {
  display: flex; align-items: center; gap: 14px;
  color: var(--text);
  min-width: 0;
}
.topbar-brand .logo-img {
  height: 56px;
  width: auto;
  display: block;
  mix-blend-mode: multiply;
}
[data-theme="dark"] .topbar-brand .logo-img {
  mix-blend-mode: normal;
  filter: invert(1) hue-rotate(180deg) brightness(1.15) saturate(0.85);
}
.topbar-brand .divider {
  width: 1px; height: 22px;
  background: var(--border);
  display: inline-block;
}
.topbar-brand .wm {
  display: flex; flex-direction: column;
  line-height: 1;
  min-width: 0;
}
.topbar-brand .wm strong {
  font-size: 13px; font-weight: 650; letter-spacing: 0; color: var(--text-secondary);
  white-space: nowrap;
}
.topbar-brand .wm small {
  font-family: var(--font-mono);
  font-size: 10.5px;
  color: var(--text-muted);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-top: 4px;
}

.topbar-nav {
  display: flex; gap: 2px; align-items: center;
  justify-content: center;
  flex-wrap: nowrap;
  min-width: 0;
  height: 100%;
}
.topbar-nav > a,
.topbar-nav > .nav-item > a {
  font-size: var(--fs-body-sm);
  font-weight: 600;
  color: var(--text-secondary);
  padding: 8px 10px;
  border-radius: 6px;
  position: relative;
  white-space: nowrap;
  transition: color var(--motion-fast), background var(--motion-fast);
}
.topbar-nav > a:hover,
.topbar-nav > .nav-item > a:hover { color: var(--text); background: var(--bg-surface); }
.topbar-nav > a.is-current,
.topbar-nav > .nav-item > a.is-current { color: var(--text); }
.topbar-nav > a.is-current::after,
.topbar-nav > .nav-item > a.is-current::after {
  content: "";
  position: absolute;
  left: 12px; right: 12px;
  bottom: 2px; height: 2px;
  background: var(--accent);
}

.nav-item {
  position: relative;
  display: flex;
  align-items: center;
  height: 100%;
}
.nav-menu {
  position: absolute;
  top: 100%;
  left: 0;
  width: max-content;
  min-width: 238px;
  padding: 8px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  box-shadow: 0 18px 40px rgba(20, 24, 31, 0.12);
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  pointer-events: none;
  transition: opacity var(--motion-fast), transform var(--motion-fast), visibility var(--motion-fast);
}
.nav-menu a {
  display: block;
  padding: 9px 10px;
  border-radius: 6px;
  color: var(--text-secondary);
  font-size: 13px;
  font-weight: 600;
  line-height: 1.3;
  white-space: nowrap;
}
.nav-menu a:hover {
  color: var(--heading);
  background: var(--highlight-soft);
}
.nav-item:hover .nav-menu,
.nav-item:focus-within .nav-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
  pointer-events: auto;
}

.topbar-meta {
  display: flex; align-items: center; gap: 16px;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}
.topbar-meta .sep { width: 1px; height: 14px; background: var(--border); }

.theme-toggle {
  appearance: none;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 999px;
  color: var(--text-secondary);
  padding: 4px 10px 4px 8px;
  display: inline-flex; align-items: center; gap: 6px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  transition: border var(--motion-fast), color var(--motion-fast);
}
.theme-toggle:hover { border-color: var(--border-strong); color: var(--text); }
.theme-toggle .dot {
  width: 8px; height: 8px; border-radius: 999px;
  background: var(--text);
  display: inline-block;
}

.nav-toggle {
  appearance: none;
  display: none;
  align-items: center;
  gap: 7px;
  padding: 4px 10px 4px 8px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: transparent;
  color: var(--text-secondary);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  transition: border var(--motion-fast), color var(--motion-fast);
}
.nav-toggle:hover {
  border-color: var(--border-strong);
  color: var(--text);
}
.nav-toggle-lines {
  width: 12px;
  height: 8px;
  position: relative;
  display: inline-block;
}
.nav-toggle-lines::before,
.nav-toggle-lines::after {
  content: "";
  position: absolute;
  left: 0;
  width: 12px;
  height: 1.5px;
  background: currentColor;
  border-radius: 999px;
  transition: transform var(--motion-fast), top var(--motion-fast);
}
.nav-toggle-lines::before { top: 1px; }
.nav-toggle-lines::after { top: 6px; }
.topbar.is-nav-open .nav-toggle-lines::before {
  top: 3.5px;
  transform: rotate(42deg);
}
.topbar.is-nav-open .nav-toggle-lines::after {
  top: 3.5px;
  transform: rotate(-42deg);
}

/* --------------------------------------------------------------------------
   Hero band
   -------------------------------------------------------------------------- */
.hero {
  position: relative;
  padding: clamp(60px, 8vw, 110px) 0 0;
  overflow: hidden;
  background: var(--bg);
}

/* topographic contour background */
.hero-contour {
  position: absolute;
  inset: 0;
  opacity: 0.06;
  pointer-events: none;
  transform: translate(8%, -10%) scale(1.3);
}
.hero-contour img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
[data-theme="dark"] .hero-contour { opacity: 0.08; color: var(--accent); }

.hero-grid {
  position: relative;
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(28px, 4vw, 48px);
}

.hero-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.10em;
  text-transform: uppercase;
  color: var(--text-muted);
}
.hero-top .crumbs {
  display: flex; align-items: center; gap: 18px;
  flex-wrap: wrap;
}
.hero-top .crumbs span { display: inline-flex; align-items: center; gap: 8px; }
.hero-top .crumbs .pill {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 6px 14px;
  border: 1px solid var(--highlight);
  color: var(--highlight);
  border-radius: 999px;
  background: var(--highlight-soft);
  font-size: 12.5px;
  letter-spacing: 0.12em;
  font-weight: 600;
}
.hero-top .crumbs .pill::before {
  content: ""; width: 7px; height: 7px; border-radius: 999px;
  background: var(--highlight);
  animation: pulse-dot 2.4s ease-in-out infinite;
}

@keyframes pulse-dot {
  0%,100% { opacity: 0.7; transform: scale(1); }
  50%     { opacity: 1;   transform: scale(1.35); }
}

.hero-eyebrow {
  font-family: var(--font-mono);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 14px;
  min-width: 0;
}
.hero-eyebrow span { min-width: 0; }
.hero-eyebrow::before {
  content: "";
  display: block;
  width: 36px; height: 1px;
  background: var(--accent);
}

.hero-title {
  font-family: var(--font-serif);
  font-size: clamp(56px, 7vw, 104px);
  line-height: 0.94;
  letter-spacing: -0.035em;
  font-weight: 600;
  font-style: normal;
  margin: 18px 0 0;
  color: var(--heading);
  position: relative;
  font-feature-settings: "lnum", "ss01";
}
.hero-title .yr {
  color: #c8202d;
  font-weight: 500;
  font-style: italic;
  font-feature-settings: "lnum", "onum";
  margin-left: 0.06em;
}

.hero-theme {
  margin-top: 0;
  max-width: 760px;
  font-family: var(--font-sans);
  font-size: 18px;
  line-height: 1.5;
  color: var(--text-secondary);
  font-weight: 500;
  text-wrap: pretty;
  letter-spacing: 0;
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 12px;
  padding-top: 14px;
  border-top: 1px solid var(--border);
}
.hero-theme .theme-label {
  font-family: var(--font-mono);
  font-size: 10.5px;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--text-muted);
  flex-shrink: 0;
}
.hero-theme em {
  font-family: var(--font-serif);
  font-style: italic;
  font-weight: 600;
  color: var(--text);
  background: none;
  padding: 0;
  font-size: 22px;
}

.hero-meta {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 0;
  margin-top: clamp(20px, 2.4vw, 32px);
  border-top: 1px solid var(--border-strong);
  border-bottom: 1px solid var(--border-strong);
}
.hero-meta > div {
  padding: 20px 24px 22px;
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.hero-meta > div:last-child { border-right: 0; }
.hero-meta .label {
  font-family: var(--font-mono);
  font-size: 10.5px;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--text-muted);
}
.hero-meta .value {
  font-family: var(--font-serif);
  font-size: 19px;
  color: var(--text);
  font-weight: 600;
  line-height: 1.25;
  letter-spacing: -0.005em;
}
.hero-meta .value .mono { font-size: 15px; }
.hero-meta .sub {
  font-size: 12px;
  color: var(--text-muted);
}
.hero-meta > div:last-child .sub { font-size: 14px; }
.chair-list {
  list-style: none;
  margin: 2px 0 0;
  padding: 0;
  display: grid;
  gap: 4px;
}
.chair-list li {
  display: block;
  line-height: 1.35;
}
.chair-list li span:first-child {
  font-family: var(--font-serif);
  font-size: 16px;
  color: var(--text);
  font-weight: 600;
  margin-right: 1em;
}
.chair-list li span:last-child {
  font-size: 12px;
  color: var(--text-muted);
}
@media (max-width: 560px) {
  .hero-meta { grid-template-columns: 1fr; }
  .hero-meta > div {
    border-right: 0;
    border-bottom: 1px solid var(--border);
  }
  .hero-meta > div:last-child { border-bottom: 0; }
}

.hero-cta {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 28px;
}

/* skyline strip at bottom of hero */
.hero-skyline {
  position: relative;
  margin-top: clamp(48px, 6vw, 76px);
  color: var(--text);
  opacity: 0.85;
}
.hero-skyline svg { width: 100%; height: auto; display: block; }
.hero-skyline::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: 0;
  height: 1px;
  background: var(--border-strong);
}
.hero-skyline-caption {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 14px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.10em;
  text-transform: uppercase;
  color: var(--text-muted);
  padding-bottom: 24px;
}

/* --------------------------------------------------------------------------
   Buttons
   -------------------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 11px 18px;
  font-size: 14px;
  font-weight: 600;
  border-radius: var(--input-radius);
  border: 1px solid transparent;
  transition: background var(--motion-fast), border var(--motion-fast), color var(--motion-fast), transform var(--motion-fast);
  letter-spacing: 0;
}
.btn .arrow { transition: transform var(--motion-fast); font-family: var(--font-sans); }
.btn:hover .arrow { transform: translateX(3px); }

.btn-primary {
  background: var(--text);
  color: var(--bg-surface);
}
.btn-primary:hover { background: var(--accent); }

.btn-ghost {
  background: transparent;
  color: var(--text);
  border-color: var(--border-strong);
}
.btn-ghost:hover { border-color: var(--text); }

.btn-link {
  background: transparent;
  color: var(--text);
  padding: 11px 0;
  border-bottom: 1px solid var(--text);
  border-radius: 0;
}

/* --------------------------------------------------------------------------
   Page layout (sidebar + content)
   -------------------------------------------------------------------------- */
.page-layout {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: clamp(28px, 4vw, 64px);
  padding: clamp(56px, 7vw, 88px) var(--gutter) 80px;
}

@media (max-width: 980px) {
  .page-layout { grid-template-columns: 1fr; }
}

.sidebar {
  display: flex;
  flex-direction: column;
  gap: 36px;
  position: sticky;
  top: calc(var(--topbar-h) + 24px);
  align-self: start;
  font-size: var(--fs-body-sm);
}
@media (max-width: 980px) {
  .sidebar { position: static; }
}

.side-section h3 {
  font-family: var(--font-mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: var(--tracking-kicker);
  color: var(--text-muted);
  font-weight: 500;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 14px;
}

.news-list {
  margin: 0; padding: 0; list-style: none;
  display: flex; flex-direction: column;
}
.news-list li {
  padding: 14px 0;
  border-bottom: 1px solid var(--border);
  display: flex; flex-direction: column; gap: 4px;
}
.news-list li:last-child { border-bottom: 0; }
.news-list time {
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
}
.news-list a {
  color: var(--text);
  line-height: 1.4;
}
.news-list a:hover { color: var(--accent); }

.quick-links {
  margin: 0; padding: 0; list-style: none;
  display: flex; flex-direction: column;
}
.quick-links li {
  border-bottom: 1px solid var(--border);
}
.quick-links a {
  display: flex; align-items: center; justify-content: space-between;
  padding: 12px 0;
  color: var(--text);
  transition: color var(--motion-fast), padding var(--motion-fast);
}
.quick-links a::after {
  content: "→";
  color: var(--text-muted);
  transition: transform var(--motion-fast), color var(--motion-fast);
  font-family: var(--font-sans);
}
.quick-links a:hover { color: var(--accent); padding-left: 4px; }
.quick-links a:hover::after { color: var(--accent); transform: translateX(3px); }

.deadline-card {
  border: 1px solid var(--highlight);
  background: var(--highlight-soft);
  border-radius: var(--panel-radius);
  padding: 18px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.deadline-card .label {
  font-family: var(--font-mono);
  font-size: 10.5px;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--highlight);
}
.deadline-card strong {
  font-size: 17px;
  color: var(--text);
  font-weight: 600;
}
.deadline-card .date {
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--text);
}
.deadline-card .countdown {
  font-family: var(--font-mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-secondary);
  margin-top: 4px;
  font-weight: 600;
}

/* --------------------------------------------------------------------------
   Content sections
   -------------------------------------------------------------------------- */
.content { min-width: 0; display: flex; flex-direction: column; gap: clamp(64px, 8vw, 110px); }

.section-head {
  display: grid;
  grid-template-columns: minmax(0,1fr);
  gap: 8px;
  margin-bottom: 36px;
}
.section-head h2 { max-width: 30ch; text-wrap: balance; }
.section-head .lede {
  margin-top: 12px;
  font-size: clamp(16px, 1.4vw, 19px);
  color: var(--text-secondary);
  font-weight: 500;
  line-height: 1.55;
  max-width: 64ch;
}

/* welcome lede */
.welcome {
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border);
}
.welcome .lede {
  font-family: var(--font-serif);
  font-size: clamp(18px, 1.7vw, 23px);
  line-height: 1.48;
  color: var(--text);
  text-wrap: pretty;
  font-weight: 500;
  max-width: 64ch;
}
.welcome .lede strong { color: var(--accent); font-weight: 600; font-style: italic; }

/* stat strip */
.statstrip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.statstrip > div {
  padding: 26px 24px 28px;
  border-right: 1px solid var(--border);
  display: flex; flex-direction: column; gap: 6px;
}
.statstrip > div:last-child { border-right: 0; }
.statstrip .num {
  font-family: var(--font-serif);
  font-size: 52px; line-height: 1; font-weight: 500;
  color: var(--text);
  letter-spacing: -0.02em;
  font-feature-settings: "lnum", "ss01";
}
.statstrip .num .small {
  font-family: var(--font-mono);
  font-size: 14px;
  letter-spacing: 0;
  color: var(--text-muted);
  margin-left: 4px;
  font-weight: 400;
}
.statstrip .lbl {
  font-family: var(--font-mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--text-muted);
}
@media (max-width: 820px) {
  .statstrip { grid-template-columns: repeat(2, 1fr); }
  .statstrip > div:nth-child(2) { border-right: 0; }
  .statstrip > div:nth-child(1),
  .statstrip > div:nth-child(2) { border-bottom: 1px solid var(--border); }
}

/* tracks grid (Call for Papers) */
.tracks {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0;
  border-top: 1px solid var(--border);
}
.tracks > article {
  padding: 32px 28px 36px;
  border-right: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  display: flex; flex-direction: column; gap: 12px;
  transition: background var(--motion-fast);
  position: relative;
  overflow: hidden;
}
.tracks > article:nth-child(2n) { border-right: 0; }
.tracks > article { background: var(--bg-surface); }
.tracks > article:hover { background: var(--bg); }
.tracks > article:hover .track-num { color: var(--accent); }
.tracks > article::after {
  content: "";
  position: absolute;
  right: 18px;
  bottom: 8px;
  width: 150px;
  aspect-ratio: 1;
  opacity: 0.055;
  pointer-events: none;
  background-color: var(--accent);
  mask-repeat: no-repeat;
  mask-position: center;
  mask-size: contain;
  -webkit-mask-repeat: no-repeat;
  -webkit-mask-position: center;
  -webkit-mask-size: contain;
  transform: rotate(-4deg);
  transition: opacity var(--motion-fast), transform var(--motion-fast);
}
.tracks > article:hover::after {
  opacity: 0.08;
  transform: translateY(-2px) rotate(-4deg);
}
.tracks > article[data-track="research"]::after {
  mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='1.65' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M7.2 7.6 12 12l4.8-4.4M7.2 16.4 12 12l4.8 4.4'/%3E%3Ccircle cx='6' cy='6.5' r='2.2'/%3E%3Ccircle cx='18' cy='6.5' r='2.2'/%3E%3Ccircle cx='6' cy='17.5' r='2.2'/%3E%3Ccircle cx='18' cy='17.5' r='2.2'/%3E%3C/svg%3E");
  -webkit-mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='1.65' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M7.2 7.6 12 12l4.8-4.4M7.2 16.4 12 12l4.8 4.4'/%3E%3Ccircle cx='6' cy='6.5' r='2.2'/%3E%3Ccircle cx='18' cy='6.5' r='2.2'/%3E%3Ccircle cx='6' cy='17.5' r='2.2'/%3E%3Ccircle cx='18' cy='17.5' r='2.2'/%3E%3C/svg%3E");
}
.tracks > article[data-track="industry"]::after {
  mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='1.65' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M4.5 19.5h15'/%3E%3Cpath d='M5.5 19.5V10l4 2.6V10l4 2.6V7.5h5v12'/%3E%3Cpath d='M8 16h1.6M12 16h1.6M16 16h1.6'/%3E%3C/svg%3E");
  -webkit-mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='1.65' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M4.5 19.5h15'/%3E%3Cpath d='M5.5 19.5V10l4 2.6V10l4 2.6V7.5h5v12'/%3E%3Cpath d='M8 16h1.6M12 16h1.6M16 16h1.6'/%3E%3C/svg%3E");
}
.tracks > article[data-track="ai"]::after {
  mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='1.65' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M7 4.5h7l3 3v12H7z'/%3E%3Cpath d='M14 4.5v4h4'/%3E%3Cpath d='M9.5 14.5h5'/%3E%3Cpath d='M10.5 17h3'/%3E%3Cpath d='m5.4 8.4.9-1.8.9 1.8 1.8.9-1.8.9-.9 1.8-.9-1.8-1.8-.9z'/%3E%3C/svg%3E");
  -webkit-mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='1.65' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M7 4.5h7l3 3v12H7z'/%3E%3Cpath d='M14 4.5v4h4'/%3E%3Cpath d='M9.5 14.5h5'/%3E%3Cpath d='M10.5 17h3'/%3E%3Cpath d='m5.4 8.4.9-1.8.9 1.8 1.8.9-1.8.9-.9 1.8-.9-1.8-1.8-.9z'/%3E%3C/svg%3E");
}
.tracks > article[data-track="sister"]::after {
  mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='1.65' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M9.8 8.8 8.3 7.3a3.6 3.6 0 0 0-5.1 5.1l2.4 2.4a3.6 3.6 0 0 0 5.1 0l.9-.9'/%3E%3Cpath d='m14.2 15.2 1.5 1.5a3.6 3.6 0 0 0 5.1-5.1l-2.4-2.4a3.6 3.6 0 0 0-5.1 0l-.9.9'/%3E%3Cpath d='m8.8 15.2 6.4-6.4'/%3E%3C/svg%3E");
  -webkit-mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='1.65' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M9.8 8.8 8.3 7.3a3.6 3.6 0 0 0-5.1 5.1l2.4 2.4a3.6 3.6 0 0 0 5.1 0l.9-.9'/%3E%3Cpath d='m14.2 15.2 1.5 1.5a3.6 3.6 0 0 0 5.1-5.1l-2.4-2.4a3.6 3.6 0 0 0-5.1 0l-.9.9'/%3E%3Cpath d='m8.8 15.2 6.4-6.4'/%3E%3C/svg%3E");
}
.tracks > article[data-track="workshop"]::after {
  right: 28px;
  bottom: 22px;
  width: 138px;
  mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='1.65' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M6 4.5v15'/%3E%3Cpath d='M6 5.5h10.5l-1.7 3 1.7 3H6'/%3E%3Cpath d='M9 8.5h4'/%3E%3C/svg%3E");
  -webkit-mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='1.65' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M6 4.5v15'/%3E%3Cpath d='M6 5.5h10.5l-1.7 3 1.7 3H6'/%3E%3Cpath d='M9 8.5h4'/%3E%3C/svg%3E");
}
.tracks > article[data-track="tutorial"]::after {
  right: 28px;
  bottom: 22px;
  width: 138px;
  mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='1.65' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M5 5.5h6.5a3 3 0 0 1 3 3v11a3 3 0 0 0-3-3H5z'/%3E%3Cpath d='M19 5.5h-4.5a3 3 0 0 0-3 3'/%3E%3Cpath d='M8 9h3M8 12h3'/%3E%3C/svg%3E");
  -webkit-mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='1.65' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M5 5.5h6.5a3 3 0 0 1 3 3v11a3 3 0 0 0-3-3H5z'/%3E%3Cpath d='M19 5.5h-4.5a3 3 0 0 0-3 3'/%3E%3Cpath d='M8 9h3M8 12h3'/%3E%3C/svg%3E");
}
.tracks > article > * {
  position: relative;
  z-index: 1;
}
.track-num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--text-muted);
  font-weight: 600;
  transition: color var(--motion-fast);
}
.tracks h3 {
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: 22px;
  line-height: 1.2;
  letter-spacing: 0;
  text-wrap: balance;
}
.tracks h3 a {
  display: inline-grid;
  grid-template-columns: 34px minmax(0, 1fr);
  align-items: center;
  gap: 11px;
  color: var(--heading);
  max-width: 100%;
}
.track-icon {
  width: 34px;
  aspect-ratio: 1;
  border: 1px solid rgba(60, 73, 144, 0.26);
  border-radius: 999px;
  background: var(--accent-tint);
  color: var(--accent);
  display: inline-grid;
  place-items: center;
  flex: 0 0 auto;
  transition: transform var(--motion-fast), background-color var(--motion-fast), border-color var(--motion-fast);
}
.track-icon svg {
  width: 19px;
  height: 19px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.65;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.tracks > article:hover .track-icon {
  transform: translateY(-1px);
  background: var(--accent-soft);
  border-color: rgba(60, 73, 144, 0.52);
}
.tracks p {
  font-size: 14.5px;
  font-weight: 500;
  line-height: 1.55;
  color: var(--text-secondary);
}
.track-tags {
  margin-top: 6px;
  display: flex; flex-wrap: wrap; gap: 6px;
}
.track-tag {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.06em;
  text-transform: lowercase;
  color: var(--text-muted);
  padding: 2px 8px;
  border: 1px solid var(--border);
  border-radius: 999px;
}
@media (max-width: 720px) {
  .tracks { grid-template-columns: 1fr; }
  .tracks > article:nth-child(2n) { border-right: 0; }
  .tracks > article { border-right: 0; }
  .tracks > article::after {
    width: 118px;
    right: 14px;
    bottom: 10px;
    opacity: 0.045;
  }
}

/* dates table */
.datetable {
  width: 100%;
  border-collapse: collapse;
  font-size: 15px;
}
.datetable th, .datetable td {
  text-align: left;
  padding: 18px 16px;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
}
.datetable th {
  font-family: var(--font-mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--text-muted);
  font-weight: 600;
  padding-top: 12px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border-strong);
}
.datetable td time {
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 600;
  color: var(--text);
  white-space: nowrap;
}
.datetable td:first-child { padding-left: 16px; color: var(--text); font-weight: 650; }
.datetable td:last-child { padding-right: 0; color: var(--text-secondary); font-size: 14px; font-weight: 500; }
.datetable td:last-child a {
  color: var(--heading);
  font-weight: 650;
  border-bottom: 1px solid currentColor;
}
.datetable td:last-child a:hover { color: var(--accent); }
.datetable tr:last-child td { border-bottom: 1px solid var(--border-strong); }
.datetable tr.is-next td { background: var(--highlight-soft); }
.datetable tr.is-next td:first-child { box-shadow: inset 2px 0 0 var(--highlight); padding-left: 16px; }
.datetable tr.is-next td:first-child::before {
  content: "Next ";
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--highlight);
  margin-right: 8px;
  padding: 2px 6px;
  border: 1px solid var(--highlight);
  border-radius: 999px;
}
.datetable tr.is-highlight td,
.datetable tr.is-highlight td time,
.datetable tr.is-highlight td:first-child,
.datetable tr.is-highlight td:last-child {
  color: #ffffff;
}
.datetable tr.is-highlight td:first-child {
  font-weight: 750;
}
.datetable tr.is-highlight td {
  background: var(--accent);
}
.datetable tr.is-next.is-highlight td {
  background: var(--highlight-soft);
  color: var(--text);
}
.datetable tr.is-next.is-highlight td time,
.datetable tr.is-next.is-highlight td:first-child {
  color: var(--text);
}
.datetable tr.is-next.is-highlight td:last-child {
  color: var(--text-secondary);
}
.datetable tr.is-conference td {
  background: var(--accent-tint);
  color: var(--heading);
}
.datetable tr.is-conference td time { color: var(--heading); }
.datetable tr.is-conference td:last-child { color: var(--heading); }
.datetable tr.is-conference td:first-child { color: var(--heading); font-weight: 700; }
.datetable tr.is-past td { background: transparent; color: var(--text-muted); }
.datetable tr.is-past td time { color: var(--text-muted); text-decoration: line-through; text-decoration-color: var(--border-strong); }
.datetable tr.is-past td:first-child { color: var(--text-muted); }

.datetable-foot {
  margin-top: 14px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
}
@media (max-width: 720px) {
  .datetable {
    display: block;
    max-width: 100%;
    overflow: visible;
  }
  .datetable thead { display: none; }
  .datetable tbody {
    display: block;
    width: 100%;
  }
  .datetable tr {
    display: block;
    padding: 16px 0;
    border-bottom: 1px solid var(--border);
  }
  .datetable tr:last-child { border-bottom: 1px solid var(--border-strong); }
  .datetable td {
    display: block;
    width: 100%;
    padding: 4px 0;
    border-bottom: 0;
  }
  .datetable td:first-child {
    padding-left: 0;
    margin-bottom: 6px;
  }
  .datetable td:last-child { padding-right: 0; }
  .datetable td:nth-child(2)::before,
  .datetable td:nth-child(3)::before {
    display: inline-block;
    min-width: 54px;
    margin-right: 8px;
    font-family: var(--font-mono);
    font-size: 10px;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--text-muted);
  }
  .datetable td:nth-child(2)::before { content: "Date"; }
  .datetable td:nth-child(3)::before { content: "Notes"; }
  .datetable tr.is-next td:first-child {
    box-shadow: none;
    padding-left: 0;
  }
}

/* program days */
.program {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
/* Tracks 2-up grid */
.tracks-2 { grid-template-columns: 1fr 1fr; }
.tracks-2 > article:nth-child(2n) { border-right: 0; }
@media (max-width: 720px) {
  .tracks-2 { grid-template-columns: 1fr; }
  .tracks-2 > article { border-right: 0; }
}

/* Tracks 2x2 grid — four peer tracks */
.tracks-4 { grid-template-columns: 1fr 1fr; }
.tracks-4 > article:nth-child(2n) { border-right: 0; }
@media (max-width: 720px) {
  .tracks-4 { grid-template-columns: 1fr; }
  .tracks-4 > article { border-right: 0; }
}
.program > div {
  padding: 28px 22px 32px;
  border-right: 1px solid var(--border);
  display: flex; flex-direction: column; gap: 10px;
}
.program > div:last-child { border-right: 0; }
.program .day {
  font-family: var(--font-mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--accent);
}
.program .dnum {
  font-family: var(--font-serif);
  font-size: 42px;
  font-weight: 500;
  font-style: italic;
  color: var(--text);
  letter-spacing: -0.02em;
  line-height: 1;
  font-feature-settings: "lnum";
}
.program h3 {
  font-size: 18px; line-height: 1.25; font-weight: 700;
}
.program p {
  font-size: 13.5px;
  font-weight: 500;
  color: var(--text-secondary);
  line-height: 1.55;
}
.program .date {
  font-family: var(--font-mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.10em;
  color: var(--text-muted);
  margin-top: auto;
  padding-top: 12px;
  border-top: 1px dashed var(--border);
}
.program-3 { grid-template-columns: repeat(3, 1fr); }
.program-3 > div:nth-child(3) { border-right: 0; }
@media (max-width: 820px) {
  .program { grid-template-columns: repeat(2, 1fr); }
  .program > div:nth-child(2) { border-right: 0; }
  .program > div:nth-child(1),
  .program > div:nth-child(2) { border-bottom: 1px solid var(--border); }
  .program-3 > div:nth-child(2) { border-right: 1px solid var(--border); }
  .program-3 > div:nth-child(3) { grid-column: 1 / -1; border-top: 1px solid var(--border); }
}
@media (max-width: 560px) {
  .program,
  .program-3 { grid-template-columns: 1fr; }
  .program > div,
  .program-3 > div { border-right: 0 !important; }
  .program > div:nth-child(3),
  .program-3 > div:nth-child(3) { grid-column: auto; }
}

/* venue section */
.venue {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: clamp(28px, 4vw, 56px);
  align-items: start;
}
@media (max-width: 820px) { .venue { grid-template-columns: 1fr; } }

.venue-info { display: flex; flex-direction: column; gap: 24px; }
.venue-info .addr {
  font-family: var(--font-mono);
  font-size: 12.5px;
  text-transform: uppercase;
  letter-spacing: 0.10em;
  line-height: 1.7;
  color: var(--text-secondary);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 16px 0;
}
.venue-info .addr span { color: var(--text); display: block; }
.venue-info .addr small {
  display: block;
  font-size: 11px;
  color: var(--text-muted);
  margin-top: 8px;
  letter-spacing: 0.16em;
}

.venue-map {
  border: 1px solid var(--border);
  background: var(--bg-surface);
  border-radius: var(--panel-radius);
  padding: 28px;
  color: var(--text-secondary);
  position: relative;
}
.venue-map svg { width: 100%; height: auto; }
.venue-map-foot {
  margin-top: 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
  display: flex;
  justify-content: space-between;
}

.venue-figure img,
.venue-photo img {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: var(--panel-radius);
  background: var(--bg-surface);
}
.venue-photo {
  margin: 32px 0 0;
}
.venue-photo figcaption,
.venue-figure figcaption {
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
}

/* sponsors placeholder */
.sponsor-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 0;
  border-top: 1px solid var(--border);
  border-left: 1px solid var(--border);
}
.sponsor-grid > div {
  aspect-ratio: 3 / 1;
  border-right: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  display: grid;
  place-items: center;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-muted);
  background:
    repeating-linear-gradient(45deg, transparent 0 8px, var(--accent-tint) 8px 9px);
}

/* misc small components */
.callout {
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent);
  padding: 18px 22px;
  background: var(--bg-surface);
  font-size: 14.5px;
  line-height: 1.55;
  color: var(--text-secondary);
  font-weight: 500;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.callout strong { color: var(--text); font-weight: 700; }

/* call detail pages */
.call-layout {
  display: grid;
  grid-template-columns: 280px minmax(0, 1fr);
  gap: clamp(32px, 5vw, 76px);
  align-items: start;
}

.call-sidebar .quick-links a {
  font-size: 13.5px;
  font-weight: 650;
}

.call-prose {
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: clamp(56px, 7vw, 86px);
}

.call-prose > section {
  scroll-margin-top: calc(var(--topbar-h) + 28px);
}

.call-prose .section-head {
  margin-bottom: 24px;
}

.call-prose p {
  max-width: 82ch;
  color: var(--text-secondary);
  font-size: 15.5px;
  line-height: 1.72;
  font-weight: 500;
  text-wrap: pretty;
}

.call-prose p + p {
  margin-top: 14px;
}

.call-prose a:not(.btn) {
  color: var(--heading);
  font-weight: 700;
  border-bottom: 1px solid currentColor;
  transition: color var(--motion-fast);
}

.call-prose a:not(.btn):hover {
  color: var(--accent-strong);
}

.call-prose code {
  font-family: var(--font-mono);
  font-size: 0.92em;
  color: var(--text);
  background: var(--accent-tint);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 1px 5px;
}

.call-prose ul {
  list-style: none;
  margin: 18px 0 0;
  padding: 0;
  display: grid;
  gap: 9px;
  max-width: 84ch;
}

.call-prose li {
  position: relative;
  padding-left: 18px;
  color: var(--text-secondary);
  font-size: 14.5px;
  line-height: 1.58;
  font-weight: 500;
}

.call-prose li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.78em;
  width: 8px;
  height: 1px;
  background: var(--accent);
}

.call-summary {
  padding-bottom: 8px;
}

.call-facts {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  border-top: 1px solid var(--border);
  border-left: 1px solid var(--border);
}

.call-facts > div {
  min-width: 0;
  padding: 20px 18px 22px;
  border-right: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: 7px;
  background: var(--bg-surface);
}

.call-facts .label,
.info-list span {
  font-family: var(--font-mono);
  font-size: 10.5px;
  text-transform: uppercase;
  letter-spacing: 0.13em;
  color: var(--text-muted);
  font-weight: 600;
}

.call-facts strong {
  color: var(--text);
  font-size: 17px;
  line-height: 1.25;
  font-weight: 700;
}

.call-facts small {
  color: var(--text-muted);
  font-size: 12px;
  line-height: 1.4;
  font-weight: 500;
}

.topic-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  border-top: 1px solid var(--border);
  border-left: 1px solid var(--border);
  margin-top: 26px;
}

.topic-block {
  padding: 26px 24px 28px;
  border-right: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  background: var(--bg-surface);
  transition: background-color var(--motion-fast);
}

.topic-block:hover {
  background: var(--accent-tint);
}

.topic-block:nth-child(2n) {
  border-right: 0;
}

.topic-block h3 {
  color: var(--heading);
  font-size: 18px;
  line-height: 1.25;
  margin-bottom: 14px;
  text-wrap: balance;
}

.topic-subhead {
  margin: 14px 0 8px;
  color: var(--text);
  font-size: 13px;
  font-weight: 700;
}

.topic-block h3 + .topic-subhead {
  margin-top: 0;
}

.topic-block ul {
  margin-top: 0;
  gap: 8px;
}

.topic-block li {
  font-size: 13.5px;
  line-height: 1.5;
}

.call-note {
  margin-top: 20px;
  padding-top: 18px;
  border-top: 1px solid var(--border);
  color: var(--text) !important;
  font-weight: 650 !important;
}

.info-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  border-top: 1px solid var(--border);
  border-left: 1px solid var(--border);
}

.info-list > a,
.info-list > div {
  min-width: 0;
  padding: 18px 18px 20px;
  border-right: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: 7px;
  color: var(--text);
  transition: background-color var(--motion-fast), color var(--motion-fast);
}

.info-list > :nth-child(2n) {
  border-right: 0;
}

.info-list a {
  border-bottom: 0 !important;
}

.info-list a:hover {
  background: var(--accent-tint);
}

.info-list strong {
  font-size: 16px;
  line-height: 1.3;
  color: var(--text);
  font-weight: 700;
}

.call-actions {
  margin-top: 28px;
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

@media (max-width: 1020px) {
  .call-layout {
    grid-template-columns: 1fr;
  }

  .call-sidebar {
    position: static;
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 24px;
  }

  .call-sidebar .deadline-card {
    grid-column: 1 / -1;
  }

  .call-sidebar .side-section:only-of-type {
    grid-column: 1 / -1;
  }
}

@media (max-width: 820px) {
  .call-facts {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .topic-list,
  .info-list {
    grid-template-columns: 1fr;
  }

  .topic-block,
  .info-list > a,
  .info-list > div {
    border-right: 1px solid var(--border);
  }
}

@media (max-width: 640px) {
  .call-sidebar {
    display: flex;
    flex-direction: column;
    gap: 28px;
  }

  .call-facts {
    grid-template-columns: 1fr;
  }

  .call-facts > div,
  .topic-block,
  .info-list > a,
  .info-list > div {
    padding-inline: 0;
    border-right: 0;
    border-left: 0;
  }

  .call-facts,
  .topic-list,
  .info-list {
    border-left: 0;
  }

  .call-prose p {
    font-size: 15px;
    line-height: 1.68;
  }
}

/* link row pattern used for "view all" */
.linkrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-sans);
  font-size: 14px;
  color: var(--text);
  border-bottom: 1px solid var(--text);
  padding-bottom: 4px;
  transition: color var(--motion-fast), border var(--motion-fast);
  align-self: flex-start;
}
.linkrow:hover { color: var(--accent); border-color: var(--accent); }
.linkrow::after { content: "→"; transition: transform var(--motion-fast); }
.linkrow:hover::after { transform: translateX(4px); }

/* --------------------------------------------------------------------------
   Sub-page headers (non-home)
   -------------------------------------------------------------------------- */
.page-header {
  padding: clamp(56px, 7vw, 96px) 0 clamp(40px, 5vw, 56px);
  border-bottom: 1px solid var(--border);
  position: relative;
  overflow: hidden;
}
.page-header .container { position: relative; }
.page-header .crumb {
  font-family: var(--font-mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--text-muted);
  margin-bottom: 16px;
  display: flex; align-items: center; gap: 12px;
}
.page-header .crumb a { color: var(--text-muted); }
.page-header .crumb a:hover { color: var(--accent); }
.page-header h1 {
  font-family: var(--font-serif);
  font-size: var(--fs-display);
  line-height: 1.02;
  letter-spacing: -0.02em;
  font-weight: 600;
  max-width: 18ch;
  text-wrap: balance;
}
.page-header .lede {
  margin-top: 22px;
  font-size: clamp(17px, 1.6vw, 22px);
  line-height: 1.45;
  color: var(--text-secondary);
  font-weight: 500;
  max-width: 64ch;
  text-wrap: pretty;
}
.page-header .header-meta {
  margin-top: 36px;
  display: flex; flex-wrap: wrap; gap: 32px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.10em;
  text-transform: uppercase;
  color: var(--text-muted);
  font-weight: 600;
}
.page-header .header-meta span { color: var(--text); }
.page-header-contour {
  position: absolute;
  top: 0; right: -10%;
  width: 70%; height: 100%;
  color: var(--accent);
  opacity: 0.06;
  pointer-events: none;
}
[data-theme="dark"] .page-header-contour { opacity: 0.09; }

.page-body {
  padding: clamp(48px, 6vw, 80px) 0 80px;
  display: flex; flex-direction: column; gap: clamp(56px, 7vw, 96px);
}

/* --------------------------------------------------------------------------
   Footer
   -------------------------------------------------------------------------- */
.site-footer {
  background: var(--bg-elevated);
  border-top: 1px solid var(--border);
  padding: clamp(48px, 6vw, 72px) 0 32px;
  margin-top: clamp(40px, 5vw, 80px);
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr repeat(3, 1fr);
  gap: clamp(24px, 4vw, 56px);
}
@media (max-width: 820px) {
  .footer-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 540px) {
  .footer-grid { grid-template-columns: 1fr; }
}

.footer-grid h4 {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--text-muted);
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 14px;
}
.footer-grid ul { margin: 0; padding: 0; list-style: none; display: flex; flex-direction: column; gap: 8px; }
.footer-grid li a { font-size: 14px; color: var(--text-secondary); font-weight: 600; }
.footer-grid li a:hover { color: var(--accent); }

.footer-brand {
  display: flex; flex-direction: column; gap: 16px;
}
.footer-brand .name {
  font-size: 22px; font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--text);
}
.footer-brand .desc {
  font-size: 14px;
  line-height: 1.55;
  color: var(--text-secondary);
  max-width: 32ch;
}
.footer-brand .mark {
  width: 220px;
  max-width: 100%;
  height: auto;
  display: block;
  object-fit: contain;
  object-position: left center;
  mix-blend-mode: multiply;
}
[data-theme="dark"] .footer-brand .mark {
  mix-blend-mode: normal;
  filter: invert(1) hue-rotate(180deg) brightness(1.15) saturate(0.85);
}
.footer-brand .name {
  font-family: var(--font-serif);
  font-style: italic;
  font-weight: 500;
}

.site-footer .legal {
  margin-top: clamp(40px, 5vw, 64px);
  padding-top: 22px;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
}

/* --------------------------------------------------------------------------
   Utility / responsive nav
   -------------------------------------------------------------------------- */
@media (max-width: 1180px) {
  .topbar-brand .wm strong { max-width: 300px; overflow: hidden; text-overflow: ellipsis; }
  .topbar-brand .wm small { display: none; }
  .topbar-brand .logo-img { height: 46px; }
  .topbar-inner { gap: 16px; }
  .topbar-nav a {
    font-size: 13px;
    padding-inline: 8px;
  }
}

@media (max-width: 860px) {
  .topbar-inner {
    grid-template-columns: minmax(0, 1fr) auto;
    height: auto;
    min-height: var(--topbar-h);
    gap: 8px 16px;
    padding-top: 10px;
  }
  .topbar-brand { min-width: 0; }
  .topbar-brand .wm { min-width: 0; }
  .topbar-brand .wm strong {
    max-width: 240px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
  }
  .topbar-nav {
    grid-column: 1 / -1;
    order: 3;
    display: grid;
    grid-template-columns: 1fr;
    justify-content: stretch;
    align-items: stretch;
    height: auto;
    max-height: 0;
    overflow: hidden;
    padding: 0;
    border-top: 0 solid transparent;
    flex-wrap: nowrap;
    transition: max-height var(--motion-medium), padding var(--motion-medium), border-color var(--motion-fast);
  }
  .topbar.is-nav-open .topbar-nav {
    max-height: 82vh;
    overflow: auto;
    padding: 8px 0 12px;
    border-top: 1px solid var(--border);
  }
  .nav-toggle { display: inline-flex; }
  .topbar-meta { gap: 8px; }
  .topbar-nav > a,
  .topbar-nav > .nav-item > a {
    width: 100%;
    padding: 11px 0;
    border-radius: 0;
  }
  .topbar-nav > a.is-current::after,
  .topbar-nav > .nav-item > a.is-current::after {
    left: 0;
    right: auto;
    bottom: 3px;
    width: 42px;
  }
  .nav-item {
    display: block;
    height: auto;
  }
  .nav-menu {
    position: static;
    width: 100%;
    min-width: 0;
    padding: 0 0 8px 16px;
    border: 0;
    border-radius: 0;
    box-shadow: none;
    background: transparent;
    opacity: 1;
    visibility: visible;
    transform: none;
    pointer-events: auto;
    display: none;
  }
  .topbar.is-nav-open .nav-menu { display: grid; }
  .nav-menu a {
    padding: 7px 0;
    border-radius: 0;
    white-space: normal;
    color: var(--text-muted);
  }
  .topbar { padding-bottom: 0; }
}
@media (max-width: 560px) {
  .topbar-brand .divider,
  .topbar-brand .wm { display: none; }
  .topbar-brand .logo-img { height: 42px; }
  .topbar-meta { justify-content: end; }
}

/* Empty / placeholder visuals */
.empty {
  border: 1px dashed var(--border-strong);
  padding: 36px;
  text-align: center;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-muted);
  letter-spacing: 0.10em;
  text-transform: uppercase;
  border-radius: var(--panel-radius);
  background: var(--bg-surface);
}

/* committee list */
.committee {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0;
  border-top: 1px solid var(--border);
}
.committee > div {
  padding: 28px;
  border-bottom: 1px solid var(--border);
  border-right: 1px solid var(--border);
}
.committee > div:nth-child(2n) { border-right: 0; }
.committee-card {
  display: grid;
  grid-template-columns: 72px minmax(0, 1fr);
  gap: 18px;
  align-items: start;
}
.committee-avatar {
  position: relative;
  width: 72px;
  aspect-ratio: 1;
  border-radius: 999px;
  overflow: hidden;
  border: 1px solid var(--border);
  background: var(--highlight-soft);
  display: grid;
  place-items: center;
  color: var(--heading);
  font-family: var(--font-mono);
  font-size: 18px;
  font-weight: 700;
  letter-spacing: 0.04em;
  flex-shrink: 0;
}
.committee-avatar img {
  display: block;
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.committee-copy { min-width: 0; }
.committee .role {
  display: block;
  font-family: var(--font-mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--accent);
  font-weight: 600;
  margin-bottom: 10px;
}
.committee .name {
  font-size: 18px;
  color: var(--text);
  font-weight: 650;
  margin-bottom: 4px;
  line-height: 1.25;
}
.committee .affiliation {
  font-size: 13px;
  color: var(--text-secondary);
  font-weight: 500;
  line-height: 1.5;
}
.committee a.name {
  display: inline-block;
  border-bottom: 1px solid transparent;
  transition: color var(--motion-fast), border var(--motion-fast);
}
.committee a.name:hover {
  color: var(--accent);
  border-color: var(--accent);
}
.committee .note {
  display: block;
  margin-top: 10px;
  font-size: 12px;
  line-height: 1.5;
  color: var(--text-muted);
  font-weight: 500;
}
@media (max-width: 720px) {
  .committee { grid-template-columns: 1fr; }
  .committee > div { border-right: 0; }
  .committee-card { grid-template-columns: 64px minmax(0, 1fr); gap: 16px; }
  .committee-avatar { width: 64px; }
}

/* news list (large, for /news.html) */
.news-feed {
  border-top: 1px solid var(--border);
}
.news-feed article {
  display: grid;
  grid-template-columns: 180px 1fr;
  gap: 24px;
  padding: 28px 0;
  border-bottom: 1px solid var(--border);
}
@media (max-width: 720px) {
  .news-feed article { grid-template-columns: 1fr; gap: 8px; }
}
.news-feed time {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.10em;
  text-transform: uppercase;
  color: var(--text-muted);
  padding-top: 6px;
}
.news-feed h3 {
  font-size: 20px;
  line-height: 1.3;
  margin-bottom: 8px;
  letter-spacing: -0.01em;
}
.news-feed p {
  color: var(--text-secondary);
  font-size: 14.5px;
  font-weight: 500;
  line-height: 1.55;
}
.news-feed .tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.10em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 8px;
}

/* sponsorship tiers */
.tiers {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  border-top: 1px solid var(--border);
  border-left: 1px solid var(--border);
}
.tiers > div {
  padding: 32px 28px 36px;
  border-right: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  display: flex; flex-direction: column; gap: 14px;
}
.tiers .tier-name {
  font-family: var(--font-mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--text-muted);
}
.tiers .tier-price {
  font-family: var(--font-mono);
  font-size: 36px;
  font-weight: 500;
  letter-spacing: -0.02em;
  color: var(--text);
  line-height: 1;
}
.tiers .tier-price small {
  font-size: 12px;
  color: var(--text-muted);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-left: 4px;
}
.tiers ul { margin: 0; padding: 0; list-style: none; display: flex; flex-direction: column; gap: 8px; }
.tiers li {
  font-size: 13.5px;
  color: var(--text-secondary);
  padding-left: 16px;
  position: relative;
  line-height: 1.5;
}
.tiers li::before {
  content: "";
  position: absolute; left: 0; top: 0.65em;
  width: 8px; height: 1px;
  background: var(--accent);
}
.tiers .featured {
  background: var(--accent);
  color: #ffffff;
}
.tiers .featured .tier-name,
.tiers .featured .tier-price,
.tiers .featured .tier-price small,
.tiers .featured li { color: #ffffff; }
.tiers .featured li::before { background: #ffffff; opacity: 0.7; }
@media (max-width: 820px) {
  .tiers { grid-template-columns: 1fr; }
}

/* attending page extras */
.attending-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0;
  border-top: 1px solid var(--border);
}
.attending-grid > div {
  padding: 28px;
  border-right: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.attending-grid > div:nth-child(2n) { border-right: 0; }
.attending-grid h3 {
  font-size: 18px;
  margin-bottom: 8px;
}
.attending-grid p {
  font-size: 14.5px;
  color: var(--text-secondary);
  font-weight: 500;
  line-height: 1.55;
}
.attending-grid .label {
  font-family: var(--font-mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--text-muted);
  font-weight: 600;
  margin-bottom: 12px;
  display: block;
}
@media (max-width: 720px) {
  .attending-grid { grid-template-columns: 1fr; }
  .attending-grid > div { border-right: 0; }
}


/* Skyline decoration sitting on top of the theme rule, right-aligned to its end */
.theme-skyline {
  max-width: 760px;
  margin-top: -8px;
  display: flex;
  justify-content: flex-end;
  color: var(--accent);
  opacity: 0.75;
  line-height: 0;
}
.theme-skyline .svg-inline {
  width: 380px;
  height: 60px;
}
.theme-skyline img {
  width: 380px;
  height: 60px;
  object-fit: contain;
  object-position: right bottom;
  display: block;
}
.theme-skyline svg {
  width: 380px !important;
  height: 60px !important;
  display: block;
}

/* --------------------------------------------------------------------------
   Mobile containment
   -------------------------------------------------------------------------- */
@media (max-width: 640px) {
  :root {
    --gutter: clamp(22px, 6vw, 28px);
    --fs-display: clamp(34px, 11vw, 42px);
    --fs-h2: clamp(28px, 8vw, 34px);
  }

  .topbar .container {
    padding-inline: var(--gutter);
  }

  .topbar-nav { margin-inline: 0; }
  .topbar.is-nav-open .topbar-nav { padding-block: 8px 12px; }

  .hero {
    padding-top: 42px;
  }

  .hero-grid,
  .content {
    gap: 56px;
  }

  .hero-eyebrow {
    align-items: flex-start;
    gap: 10px;
    font-size: 10.5px;
    letter-spacing: 0.12em;
    line-height: 1.45;
  }

  .hero-eyebrow span {
    display: block;
    max-width: min(31ch, calc(100% - 34px));
    overflow-wrap: anywhere;
  }

  .hero-eyebrow::before,
  .kicker::before {
    width: 24px;
    flex: 0 0 24px;
    margin-top: 0.72em;
  }

  .hero-title {
    font-size: clamp(52px, 17vw, 70px);
    letter-spacing: -0.03em;
  }

  .hero-theme {
    font-size: 16px;
    gap: 8px 10px;
  }

  .hero-theme em {
    font-size: 20px;
  }

  .hero-meta > div {
    padding: 18px 0 20px;
  }

  .page-layout {
    padding-block: 44px 64px;
    gap: 48px;
  }

  .sidebar {
    gap: 28px;
  }

  .section-head {
    margin-bottom: 28px;
  }

  .section-head .lede {
    font-size: 16px;
    line-height: 1.58;
  }

  .kicker {
    gap: 10px;
    letter-spacing: 0.14em;
    line-height: 1.5;
  }

  .tracks > article,
  .program > div,
  .attending-grid > div,
  .tiers > div {
    padding: 24px 20px 28px;
  }

  .tracks h3 a {
    grid-template-columns: 32px minmax(0, 1fr);
    gap: 10px;
  }

  .track-icon {
    width: 32px;
  }

  .datetable tr {
    padding-inline: 0;
  }

  .datetable td {
    overflow-wrap: anywhere;
  }

  .page-header {
    padding-block: 44px 34px;
  }

  .page-header .crumb {
    flex-wrap: wrap;
    gap: 8px;
    letter-spacing: 0.12em;
  }

  .page-header h1,
  .page-header .lede {
    max-width: 100%;
  }

  .page-body {
    padding-block: 44px 64px;
  }

  .page-body > .container {
    gap: 56px !important;
  }

  .committee > div {
    padding: 24px 0;
  }

  .committee-card {
    grid-template-columns: 60px minmax(0, 1fr);
    gap: 14px;
  }

  .committee-avatar {
    width: 60px;
  }

  .committee .affiliation,
  .committee .name {
    overflow-wrap: anywhere;
  }

  .site-footer {
    padding-block: 44px 28px;
  }

  .footer-grid {
    gap: 30px;
  }

  .footer-brand .mark {
    width: min(220px, 100%);
  }

  .site-footer .legal {
    gap: 10px;
    line-height: 1.65;
  }

  .theme-skyline {
    justify-content: center;
    overflow: hidden;
  }

  .theme-skyline .svg-inline {
    width: min(100%, 330px);
    height: 52px;
  }

  .theme-skyline img {
    width: min(100%, 330px);
    height: 52px;
    object-position: center bottom;
  }

  .theme-skyline svg {
    width: 100% !important;
    height: auto !important;
  }
}

@media (max-width: 380px) {
  :root { --gutter: 20px; }
  .committee-card {
    grid-template-columns: 56px minmax(0, 1fr);
    gap: 12px;
  }
  .committee-avatar { width: 56px; }
}

/* SVG inline container (loaded via svg-inline.js) — inherits currentColor */
.svg-inline { display: block; width: 100%; height: 100%; line-height: 0; color: currentColor; }
.svg-inline svg { display: block; max-width: 100%; }