/* ==========================================================================
   ICMHEAI-26 — International Conference on Madrasah Higher Education
   ========================================================================== */

:root {
  --deep-900: #04241e;
  --deep-800: #053029;
  --green-800: #053d33;
  --green-700: #07604b;
  --green-600: #0a7d63;
  --mint-100: #dcf3ea;
  --mint-200: #b6e6d5;

  --accent: #22d3ee;
  --accent-deep: #0e9fb8;
  --gold: #d9a441;
  --gold-100: #fbf0d8;

  --ink: #0f1a16;
  --ink-2: #394844;
  --ink-3: #6a7873;
  --line: #e3e9e7;
  --bg: #ffffff;
  --bg-2: #f6f9f8;
  --bg-3: #ecf1ef;
  --card: #ffffff;

  --danger: #c0392b;

  --radius-sm: 8px;
  --radius: 14px;
  --radius-lg: 20px;

  --shadow-sm: 0 1px 2px rgba(6, 45, 36, .06), 0 2px 8px rgba(6, 45, 36, .05);
  --shadow: 0 4px 12px rgba(6, 45, 36, .07), 0 12px 32px rgba(6, 45, 36, .07);
  --shadow-lg: 0 18px 50px rgba(6, 45, 36, .16);

  --font-sans: "Outfit", "Segoe UI", system-ui, -apple-system, sans-serif;
  --font-serif: "Amiri", "Iowan Old Style", Georgia, serif;

  --container: 1180px;
  --gutter: clamp(1.15rem, 4vw, 2.5rem);
  --section-y: clamp(3.75rem, 8vw, 7rem);
  --topbar-h: 38px;
  --header-h: 72px;
  --sticky-h: calc(var(--topbar-h) + var(--header-h));
}

[data-theme="dark"] {
  --ink: #e8efec;
  --ink-2: #b4c3bd;
  --ink-3: #87958f;
  --line: #22332c;
  --bg: #08140f;
  --bg-2: #0d1c16;
  --bg-3: #13261f;
  --card: #0e1d17;
  --mint-100: #0e2f27;
  --mint-200: #124036;
  --gold-100: #2a2415;
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, .4);
  --shadow: 0 4px 14px rgba(0, 0, 0, .45);
  --shadow-lg: 0 20px 50px rgba(0, 0, 0, .55);
}

*, *::before, *::after { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--sticky-h) + 16px);
  -webkit-text-size-adjust: 100%;
  overflow-x: clip;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: 1.125rem;
  font-weight: 400;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: clip;
}

img, svg { display: block; max-width: 100%; }
svg { width: 100%; height: auto; }

h1, h2, h3, h4 { margin: 0; line-height: 1.18; font-weight: 600; letter-spacing: -.02em; }
p { margin: 0 0 1rem; }
p:last-child { margin-bottom: 0; }
a { color: var(--green-700); text-decoration-color: color-mix(in srgb, var(--green-700) 35%, transparent); text-underline-offset: 3px; }
a:hover { color: var(--green-600); }
ul, ol { margin: 0; padding: 0; list-style: none; }
button, input, select, textarea { font: inherit; color: inherit; }
:focus-visible { outline: 3px solid var(--accent-deep); outline-offset: 2px; border-radius: 5px; }

.container { width: 100%; max-width: var(--container); margin-inline: auto; padding-inline: var(--gutter); }
.container.narrow-grid { max-width: 1040px; }
.section { padding-block: var(--section-y); }
.section-alt { background: var(--bg-2); }

.skip-link {
  position: absolute; left: 50%; top: 0; transform: translate(-50%, -140%);
  z-index: 200; background: var(--green-700); color: #fff;
  padding: .7rem 1.2rem; border-radius: 0 0 var(--radius-sm) var(--radius-sm);
  text-decoration: none; font-weight: 600;
}
.skip-link:focus { transform: translate(-50%, 0); color: #fff; }

/* --------------------------------------------------------------------------
   Buttons
   -------------------------------------------------------------------------- */

.btn {
  --btn-bg: transparent;
  --btn-fg: var(--ink);
  --btn-bd: var(--line);
  display: inline-flex; align-items: center; justify-content: center; gap: .55rem;
  padding: .72rem 1.35rem;
  background: var(--btn-bg); color: var(--btn-fg);
  border: 1.5px solid var(--btn-bd); border-radius: 999px;
  font-weight: 600; font-size: .95rem; letter-spacing: .01em;
  text-decoration: none; cursor: pointer;
  transition: transform .18s ease, box-shadow .18s ease, background-color .18s ease, border-color .18s ease, color .18s ease;
}
.btn:hover { transform: translateY(-2px); color: var(--btn-fg); }
.btn:active { transform: translateY(0); }
.btn-sm { padding: .5rem 1.05rem; font-size: .875rem; }
.btn-lg { padding: .95rem 1.9rem; font-size: 1.02rem; }
.btn-block { display: flex; width: 100%; }
.btn-soon { opacity: .62; cursor: default; filter: saturate(.7); }
.btn-soon:hover, .btn-soon:active { transform: none; }

.btn-primary {
  --btn-bg: var(--green-700); --btn-fg: #fff; --btn-bd: var(--green-700);
  box-shadow: 0 6px 18px color-mix(in srgb, var(--green-700) 34%, transparent);
}
.btn-primary:hover { --btn-bg: var(--green-600); --btn-bd: var(--green-600); box-shadow: 0 10px 26px color-mix(in srgb, var(--green-700) 42%, transparent); }

.btn-ghost { --btn-bg: color-mix(in srgb, #fff 10%, transparent); --btn-fg: #fff; --btn-bd: color-mix(in srgb, #fff 34%, transparent); }
.btn-ghost:hover { --btn-bg: color-mix(in srgb, #fff 20%, transparent); --btn-bd: #fff; }

.btn-ghost-dark { --btn-bg: transparent; --btn-fg: var(--ink-2); --btn-bd: color-mix(in srgb, var(--ink-3) 45%, transparent); }
.btn-ghost-dark:hover { --btn-fg: var(--ink); --btn-bd: var(--ink-3); }

.btn-outline { --btn-bg: transparent; --btn-fg: var(--green-700); --btn-bd: color-mix(in srgb, var(--green-700) 42%, transparent); }
.btn-outline:hover { --btn-bg: var(--green-700); --btn-fg: #fff; --btn-bd: var(--green-700); }
[data-theme="dark"] .btn-outline { --btn-fg: var(--mint-200); --btn-bd: color-mix(in srgb, var(--mint-200) 45%, transparent); }
[data-theme="dark"] .btn-outline:hover { --btn-bg: var(--green-700); --btn-fg: #fff; --btn-bd: var(--green-700); }

.icon-btn {
  display: inline-grid; place-items: center;
  width: 42px; height: 42px; padding: 0;
  background: transparent; color: var(--ink);
  border: 1.5px solid var(--line); border-radius: 50%;
  cursor: pointer; transition: background-color .18s ease, border-color .18s ease, color .18s ease;
}
.icon-btn:hover { border-color: var(--green-600); color: var(--green-700); }
.icon-btn svg { width: 20px; height: 20px; }
.icon-btn .icon-moon { display: none; }
[data-theme="dark"] .icon-btn .icon-sun { display: none; }
[data-theme="dark"] .icon-btn .icon-moon { display: block; }

/* --------------------------------------------------------------------------
   Header
   -------------------------------------------------------------------------- */

.site-header { position: sticky; top: 0; z-index: 100; }

.topbar { background: var(--deep-900); color: #c6ded6; font-size: .8rem; }
.topbar-inner { display: flex; align-items: center; justify-content: space-between; gap: 1rem; min-height: var(--topbar-h); }
.topbar-note { margin: 0; }
.topbar-links { display: flex; align-items: center; gap: .85rem; }
.topbar-links a { color: #c6ded6; text-decoration: none; }
.topbar-links a:hover { color: #fff; text-decoration: underline; }
.topbar-sep { width: 4px; height: 4px; border-radius: 50%; background: currentColor; opacity: .5; }

.nav-wrap {
  background: color-mix(in srgb, var(--bg) 90%, transparent);
  backdrop-filter: blur(14px) saturate(1.4);
  border-bottom: 1px solid var(--line);
  transition: box-shadow .25s ease;
}
.site-header.is-stuck .nav-wrap { box-shadow: var(--shadow-sm); }

.nav-inner { display: flex; align-items: center; gap: 1.25rem; min-height: var(--header-h); }

.brand { display: flex; align-items: center; gap: .7rem; text-decoration: none; color: var(--ink); margin-right: auto; }
.brand-mark {
  --mark-h: 42px;
  flex: none; display: flex; align-items: center; justify-content: center;
  height: var(--mark-h); padding: 3px 4px;
  background: #fff; border: 1px solid var(--line); border-radius: 8px;
}
.brand-mark img { display: block; height: calc(var(--mark-h) - 8px); width: auto; max-width: none; }
.brand-text { display: flex; flex-direction: column; line-height: 1.15; }
.brand-text strong { font-size: 1.16rem; font-weight: 700; letter-spacing: -.01em; }
.brand-text em { font-style: normal; font-size: .67rem; font-weight: 500; letter-spacing: .08em; text-transform: uppercase; color: var(--ink-3); }

.nav { display: flex; align-items: center; gap: 1.4rem; }
.nav ul { display: flex; align-items: center; gap: clamp(.55rem, 1.3vw, 1.2rem); }
.nav a:not(.btn) {
  position: relative; padding-block: .3rem;
  color: var(--ink-2); text-decoration: none;
  font-size: .92rem; font-weight: 500;
  transition: color .18s ease;
}
.nav a:not(.btn)::after {
  content: ""; position: absolute; left: 0; bottom: 0;
  width: 100%; height: 2px; border-radius: 2px;
  background: var(--accent-deep); transform: scaleX(0); transform-origin: left;
  transition: transform .22s ease;
}
.nav a:not(.btn):hover { color: var(--ink); }
.nav a:not(.btn):hover::after { transform: scaleX(1); }
.nav a.is-current { color: var(--green-700); }
.nav a.is-current::after { transform: scaleX(1); }

.nav-actions { display: flex; align-items: center; gap: .5rem; position: relative; z-index: 96; }
.nav-toggle { display: none; }

.burger { display: block; width: 18px; }
.burger i { display: block; height: 2px; background: currentColor; border-radius: 2px; transition: transform .25s ease, opacity .2s ease; }
.burger i + i { margin-top: 4px; }
[aria-expanded="true"] .burger i:nth-child(1) { transform: translateY(6px) rotate(45deg); }
[aria-expanded="true"] .burger i:nth-child(2) { opacity: 0; }
[aria-expanded="true"] .burger i:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

.nav-scrim { position: fixed; inset: 0; z-index: 90; background: rgba(4, 25, 20, .55); backdrop-filter: blur(2px); }

/* --------------------------------------------------------------------------
   Hero
   -------------------------------------------------------------------------- */

.hero {
  position: relative; overflow: hidden;
  background: radial-gradient(95% 85% at 78% 15%, var(--green-800) 0%, var(--deep-800) 45%, var(--deep-900) 100%);
  color: #eaf6f1;
  padding-block: clamp(3.5rem, 8vw, 6rem) clamp(4rem, 9vw, 7rem);
}
.hero-net {
  position: absolute; inset: -6% -4% auto -4%; height: 118%;
  color: var(--accent); opacity: .3; pointer-events: none;
}
.hero-net svg { width: 100%; height: 100%; }
.hero-net g:last-of-type { animation: nodePulse 7s ease-in-out infinite; }
@keyframes nodePulse { 0%, 100% { opacity: .55; } 50% { opacity: 1; } }

.hero-fade {
  position: absolute; left: 0; right: 0; bottom: -1px; height: 110px;
  background: linear-gradient(to bottom, transparent, rgba(4, 25, 20, .7));
}
.hero-inner {
  position: relative; z-index: 1;
  display: grid; grid-template-columns: 1.12fr .88fr;
  gap: clamp(2rem, 4.5vw, 4rem); align-items: center;
}

.hero-copy { min-width: 0; }
.hero-badge {
  display: inline-flex; align-items: center; gap: .55rem; margin-bottom: 1.5rem;
  padding: .45rem 1.05rem;
  background: color-mix(in srgb, var(--accent) 14%, transparent);
  border: 1px solid color-mix(in srgb, var(--accent) 45%, transparent);
  border-radius: 999px;
  font-size: .77rem; font-weight: 500; letter-spacing: .07em; text-transform: uppercase;
  color: #a9edfb;
}
.hero-badge .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--accent); animation: pulse 2.4s infinite; }
@keyframes pulse {
  0% { box-shadow: 0 0 0 0 color-mix(in srgb, var(--accent) 65%, transparent); }
  70% { box-shadow: 0 0 0 9px transparent; }
  100% { box-shadow: 0 0 0 0 transparent; }
}

.hero-title {
  font-size: clamp(2.5rem, 6.4vw, 4.6rem);
  font-weight: 700; line-height: 1.02; letter-spacing: -.035em;
  text-wrap: balance;
}
.hero-accent {
  display: block; margin-top: .12em;
  font-family: var(--font-serif); font-weight: 700; font-style: italic;
  letter-spacing: -.01em;
  background: linear-gradient(96deg, var(--accent) 0%, var(--mint-200) 60%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}

.hero-sub {
  margin: 1.5rem 0 0; font-size: 1.06rem; color: #c4ded5;
  max-width: 46ch;
}
.hero-sub strong { display: block; color: #fff; font-weight: 600; letter-spacing: .04em; }

.hero-theme {
  margin: .9rem 0 0; padding-left: .9rem;
  border-left: 2px solid var(--gold);
  font-size: clamp(1.1rem, 2.4vw, 1.32rem); color: #e6d9b6;
  line-height: 1.45;
}

.hero-chips { display: flex; flex-wrap: wrap; gap: .6rem; margin-top: 1.7rem; }
.chip {
  display: inline-flex; align-items: center; gap: .5rem;
  padding: .45rem .95rem; font-size: .88rem; font-weight: 500;
  background: rgba(255, 255, 255, .07); border: 1px solid rgba(255, 255, 255, .16);
  border-radius: 999px; backdrop-filter: blur(6px);
}
.chip .ico { width: 17px; height: 17px; color: var(--accent); }
.chip-free { background: color-mix(in srgb, var(--gold) 16%, transparent); border-color: color-mix(in srgb, var(--gold) 45%, transparent); color: #f4e3bd; }
.chip-free .ico { color: var(--gold); }

.hero-actions { display: flex; flex-wrap: wrap; gap: .8rem; margin-top: 2.1rem; }

.hero-card {
  padding: clamp(1.5rem, 3vw, 2.1rem);
  background: rgba(255, 255, 255, .07);
  border: 1px solid rgba(255, 255, 255, .17);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(10px);
  box-shadow: 0 24px 60px rgba(0, 0, 0, .35);
}
.hero-card-kicker {
  margin-bottom: 1rem; font-size: .7rem; font-weight: 600;
  letter-spacing: .18em; text-transform: uppercase; color: var(--accent);
}
.glance { display: grid; gap: .1rem; margin: 0; }
.glance-row {
  display: flex; align-items: baseline; justify-content: space-between; gap: 1rem;
  padding: .72rem 0;
  border-bottom: 1px solid rgba(255, 255, 255, .12);
}
.glance-row:last-child { border-bottom: 0; }
.glance dt { font-size: .95rem; color: #a9c1b9; }
.glance dd { margin: 0; font-size: 1.08rem; font-weight: 600; color: #fff; text-align: right; }
.free-tag {
  display: inline-block; padding: .1rem .55rem;
  background: var(--gold); color: #241a04;
  border-radius: 999px; font-size: .74rem; font-weight: 700; letter-spacing: .05em; text-transform: uppercase;
}

.countdown { margin-top: 1.5rem; padding-top: 1.4rem; border-top: 1px solid rgba(255, 255, 255, .14); }
.countdown-label { margin-bottom: .75rem; font-size: .68rem; letter-spacing: .2em; text-transform: uppercase; color: #93b3a9; }
.countdown-units { display: grid; grid-template-columns: repeat(4, 1fr); gap: .5rem; }
.countdown-unit {
  padding: .55rem .3rem; text-align: center;
  background: rgba(255, 255, 255, .06); border: 1px solid rgba(255, 255, 255, .14);
  border-radius: var(--radius-sm);
}
.countdown-unit span {
  display: block; font-size: clamp(1.25rem, 3vw, 1.75rem); font-weight: 700;
  line-height: 1; color: var(--accent); font-variant-numeric: tabular-nums;
}
.countdown-unit em {
  display: block; margin-top: .3rem; font-style: normal;
  font-size: .6rem; letter-spacing: .1em; text-transform: uppercase; color: #93b3a9;
}

/* --------------------------------------------------------------------------
   Announcement bar
   -------------------------------------------------------------------------- */

.announce-bar { background: linear-gradient(92deg, var(--gold) 0%, #e9c76a 55%, var(--gold) 100%); }
.announce-inner {
  display: flex; flex-wrap: wrap; align-items: center; justify-content: center;
  gap: .55rem 1.1rem; padding-block: 1.05rem;
  color: #241a04;
}
.announce-badge {
  display: inline-block; padding: .22rem .85rem;
  background: #241a04; color: var(--gold);
  border-radius: 999px;
  font-size: .75rem; font-weight: 700; letter-spacing: .14em; text-transform: uppercase;
}
.announce-inner p { margin: 0; font-size: 1.2rem; font-weight: 700; letter-spacing: -.01em; }
[data-theme="dark"] .announce-bar { color: #241a04; }

/* --------------------------------------------------------------------------
   Facts strip
   -------------------------------------------------------------------------- */

.facts-strip { background: var(--bg); border-bottom: 1px solid var(--line); }
.facts-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: var(--line); }
.fact { display: flex; flex-direction: column; gap: .2rem; text-align: center; padding: 1.5rem 1rem; background: var(--bg); }
.fact strong { font-size: clamp(1.5rem, 3.6vw, 2.1rem); font-weight: 700; color: var(--green-700); line-height: 1.1; }
[data-theme="dark"] .fact strong { color: var(--accent); }
.fact span { font-size: .85rem; color: var(--ink-3); }

/* --------------------------------------------------------------------------
   Section furniture
   -------------------------------------------------------------------------- */

.eyebrow {
  display: inline-block; margin-bottom: .85rem;
  font-size: .73rem; font-weight: 600; letter-spacing: .2em; text-transform: uppercase;
  color: var(--accent-deep);
}
[data-theme="dark"] .eyebrow { color: var(--accent); }

.section-head { max-width: 700px; margin: 0 auto clamp(2.2rem, 5vw, 3.4rem); text-align: center; }
.section-title { font-size: clamp(1.95rem, 4.8vw, 3rem); line-height: 1.08; letter-spacing: -.03em; }
.section-sub { margin-top: 1rem; color: var(--ink-2); font-size: 1.1rem; }
.lede { font-size: 1.18rem; color: var(--ink-2); }
.minor-title { margin: 2.3rem 0 .9rem; font-size: 1.18rem; }
.center-note { margin-top: 2.4rem; text-align: center; color: var(--ink-3); font-size: .95rem; }
.prose p { color: var(--ink-2); }
.prose .lede { color: var(--ink); font-size: 1.2rem; line-height: 1.6; }

.callout {
  margin-top: 2rem; padding: 1.5rem 1.6rem;
  background: var(--mint-100); border-left: 3px solid var(--green-700);
  border-radius: 0 var(--radius) var(--radius) 0;
}
.callout-title { margin-bottom: .5rem; font-weight: 700; font-size: 1.02rem; color: var(--green-700); }
[data-theme="dark"] .callout-title { color: var(--accent); }
.callout p:last-child { color: var(--ink-2); }

.invited-box { margin-top: 1.4rem; padding: 1.3rem 1.5rem; background: var(--gold-100); border-radius: var(--radius); }
.invited-box p { color: var(--ink-2); font-style: italic; font-family: var(--font-serif); font-size: 1.08rem; line-height: 1.6; }

/* --------------------------------------------------------------------------
   Overview
   -------------------------------------------------------------------------- */

.overview-text { min-width: 0; }
.narrow-grid { display: grid; grid-template-columns: 1.35fr 1fr; gap: clamp(2rem, 5vw, 4rem); align-items: start; }

.theme-panel {
  position: sticky; top: calc(var(--sticky-h) + 24px);
  padding: clamp(1.5rem, 3vw, 2rem);
  background: linear-gradient(165deg, var(--green-700), var(--deep-900));
  border-radius: var(--radius-lg); color: #dcf1ea;
  box-shadow: var(--shadow-lg);
}
.theme-panel-kicker { margin-bottom: .5rem; font-size: .68rem; font-weight: 600; letter-spacing: .18em; text-transform: uppercase; color: var(--accent); }
.theme-panel-main {
  margin: 0; font-family: var(--font-serif); font-size: clamp(1.4rem, 2.6vw, 1.75rem);
  font-weight: 700; line-height: 1.3; color: #fff;
}
.theme-panel-sub {
  margin: .7rem 0 0; font-family: var(--font-serif);
  font-size: 1.08rem; font-style: italic; line-height: 1.5; color: #bfe0d5;
}
.theme-panel-divider { height: 1px; margin: 1.4rem 0; background: rgba(255, 255, 255, .18); }
.theme-panel-org { margin: 0 0 1.5rem; font-size: .98rem; color: #bfe0d5; }
.theme-panel .btn-primary { --btn-bg: var(--accent); --btn-bd: var(--accent); --btn-fg: #04241e; }
.theme-panel .btn-primary:hover { --btn-bg: #5ee0f5; --btn-bd: #5ee0f5; }

/* --------------------------------------------------------------------------
   Sub-themes
   -------------------------------------------------------------------------- */

.themes-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 1.15rem; }
.theme-card {
  position: relative; overflow: hidden;
  padding: 1.75rem 1.6rem 1.6rem;
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease;
}
.theme-card::before {
  content: ""; position: absolute; left: 0; top: 0; width: 3px; height: 100%;
  background: linear-gradient(180deg, var(--accent-deep), var(--green-700));
  transform: scaleY(0); transform-origin: top; transition: transform .3s ease;
}
.theme-card:hover { transform: translateY(-5px); box-shadow: var(--shadow); border-color: color-mix(in srgb, var(--accent-deep) 34%, var(--line)); }
.theme-card:hover::before { transform: scaleY(1); }
.theme-num {
  position: absolute; right: 1.1rem; top: .7rem;
  font-size: 3.1rem; font-weight: 700; letter-spacing: -.05em; line-height: 1;
  color: color-mix(in srgb, var(--accent-deep) 14%, transparent);
  transition: color .25s ease;
}
[data-theme="dark"] .theme-num { color: color-mix(in srgb, var(--accent) 18%, transparent); }
.theme-card:hover .theme-num { color: color-mix(in srgb, var(--accent-deep) 32%, transparent); }
[data-theme="dark"] .theme-card:hover .theme-num { color: color-mix(in srgb, var(--accent) 34%, transparent); }
.theme-card h3 { position: relative; max-width: 82%; margin-bottom: .6rem; font-size: 1.1rem; }
.theme-card p { position: relative; color: var(--ink-2); font-size: .98rem; }

/* --------------------------------------------------------------------------
   Dates
   -------------------------------------------------------------------------- */

.dates-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(215px, 1fr)); gap: 1.1rem; }
.date-card {
  position: relative;
  padding: 1.5rem 1.4rem;
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease;
}
.date-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.date-when {
  margin-bottom: .55rem; font-family: var(--font-serif);
  font-size: 1.35rem; font-weight: 700; line-height: 1.1; color: var(--green-700);
}
[data-theme="dark"] .date-when { color: var(--mint-200); }
.date-card h3 { font-size: 1rem; font-weight: 600; }
.date-status {
  margin: .8rem 0 0; font-size: .92rem; font-weight: 600; color: var(--ink-3);
  min-height: 1.35rem;
}
.date-status.is-soon { color: var(--gold); }
.date-status.is-now { color: var(--danger); }
.date-step {
  display: inline-block; margin-top: .9rem;
  padding: .15rem .6rem; font-size: .66rem; font-weight: 700;
  letter-spacing: .13em; text-transform: uppercase;
  background: var(--bg-3); color: var(--ink-3); border-radius: 999px;
}
.date-card.is-next { border-color: color-mix(in srgb, var(--accent-deep) 55%, var(--line)); box-shadow: var(--shadow-sm); }
.date-card.is-next .date-status { color: var(--accent-deep); }
[data-theme="dark"] .date-card.is-next .date-status { color: var(--accent); }
.date-card.is-event { background: linear-gradient(165deg, var(--green-700), var(--deep-900)); border-color: transparent; color: #dcf1ea; }
.date-card.is-event .date-when { color: #fff; }
.date-card.is-event h3 { color: #fff; }
.date-card.is-event .date-status { color: #a9edfb; }
.date-card.is-event .date-step { background: rgba(255, 255, 255, .16); color: #fff; }

/* --------------------------------------------------------------------------
   Call for papers
   -------------------------------------------------------------------------- */

.submission-grid { display: grid; grid-template-columns: 1.35fr 1fr; gap: clamp(2rem, 5vw, 4rem); align-items: start; }

.steps-list { display: grid; gap: 1.35rem; margin-top: 1.2rem; }
.steps-list li { display: flex; align-items: flex-start; gap: 1rem; }
.step-num {
  flex: none; display: grid; place-items: center;
  width: 32px; height: 32px; margin-top: .15rem;
  background: var(--green-700); color: #fff;
  border-radius: 50%; font-size: .9rem; font-weight: 700;
}
.steps-list strong { display: block; font-size: 1.03rem; margin-bottom: .3rem; }
.steps-list p { color: var(--ink-2); font-size: 1rem; }

.split-box {
  display: grid; grid-template-columns: 1fr 1fr; gap: 1.4rem;
  margin-top: 2.3rem; padding: 1.7rem;
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}
.split-box h4 { margin-bottom: .7rem; font-size: 1.05rem; }
.split-box p { color: var(--ink-2); font-size: .98rem; }
.benefit-list { display: grid; gap: .55rem; }
.benefit-list li {
  position: relative; padding-left: 1.6rem;
  font-size: .98rem; color: var(--ink-2);
}
.benefit-list li::before {
  content: ""; position: absolute; left: 0; top: .5em;
  width: 7px; height: 7px; border-radius: 50%; background: var(--accent-deep);
}

/* --------------------------------------------------------------------------
   Email panel
   -------------------------------------------------------------------------- */

.submit-panel, .action-card {
  position: sticky; top: calc(var(--sticky-h) + 24px);
  padding: clamp(1.6rem, 3vw, 2.2rem);
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
}
.panel-title { margin-bottom: .8rem; font-size: 1.42rem; font-weight: 700; letter-spacing: -.02em; }
.submit-panel-lead { color: var(--ink-2); font-size: .98rem; margin-bottom: 1.5rem; }

.spec-line {
  display: flex; flex-direction: column; gap: .15rem;
  margin-bottom: .95rem; padding: .7rem .85rem;
  background: var(--bg-2); border: 1px solid var(--line); border-radius: var(--radius-sm);
}
.spec-line span { font-size: .66rem; font-weight: 600; letter-spacing: .13em; text-transform: uppercase; color: var(--ink-3); }
.spec-line strong { font-size: .93rem; word-break: break-word; }

.form-actions { display: grid; gap: .7rem; margin: 1.7rem 0 1.3rem; }

.form-soon-note {
  padding: .95rem 1.1rem; font-size: .9rem; color: var(--ink-2);
  background: var(--gold-100); border-radius: var(--radius-sm);
}
.form-soon-note + .form-soon-note { margin-top: .7rem; }
.form-soon-note strong { color: var(--ink); }

/* --------------------------------------------------------------------------
   Fees
   -------------------------------------------------------------------------- */

.fee-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(290px, 1fr)); gap: 1.3rem; max-width: 860px; margin-inline: auto; }
.fee-card {
  position: relative; display: flex; flex-direction: column;
  padding: 2rem 1.8rem;
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  transition: transform .25s ease, box-shadow .25s ease;
}
.fee-card:hover { transform: translateY(-5px); box-shadow: var(--shadow); }
.fee-free { border-color: color-mix(in srgb, var(--gold) 60%, var(--line)); background: linear-gradient(180deg, var(--gold-100), var(--card) 46%); }
[data-theme="dark"] .fee-free { background: linear-gradient(180deg, rgba(217, 164, 65, .13), var(--card) 46%); }
.fee-tag {
  position: absolute; top: -12px; left: 50%; transform: translateX(-50%);
  padding: .3rem .95rem; background: var(--gold); color: #241a04;
  border-radius: 999px; font-size: .67rem; font-weight: 700;
  letter-spacing: .12em; text-transform: uppercase; white-space: nowrap;
}
.fee-label { margin: 0 0 .5rem; font-size: .78rem; font-weight: 600; letter-spacing: .15em; text-transform: uppercase; color: var(--ink-3); }
.fee-amount { margin: 0; display: flex; align-items: flex-start; gap: .35rem; font-size: clamp(2.4rem, 6vw, 3.2rem); font-weight: 700; line-height: 1; letter-spacing: -.04em; }
.fee-amount .cur { font-size: .42em; font-weight: 600; margin-top: .3em; color: var(--ink-3); letter-spacing: 0; }
.fee-amount span { font-weight: 700; color: var(--green-700); }
[data-theme="dark"] .fee-amount span { color: var(--mint-200); }
.fee-amount em { align-self: flex-end; margin: 0 0 .35rem .4rem; font-style: normal; font-size: .2em; font-weight: 500; color: var(--ink-3); letter-spacing: 0; }
.fee-note { margin: .55rem 0 0; font-size: .87rem; color: var(--ink-3); }
.fee-card ul { display: grid; gap: .6rem; margin: 1.5rem 0 1.8rem; flex: 1; }
.fee-card li { position: relative; padding-left: 1.6rem; font-size: .96rem; color: var(--ink-2); }
.fee-card li::before {
  content: ""; position: absolute; left: 0; top: .5em;
  width: 7px; height: 7px; border-radius: 50%; background: var(--green-600);
}

.benefits-band { margin-top: 3rem; padding: clamp(1.6rem, 3vw, 2.2rem); background: var(--bg-3); border-radius: var(--radius-lg); }
.benefits-title { margin-bottom: 1.5rem; text-align: center; font-size: 1.12rem; }
.benefits-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(210px, 1fr)); gap: 1.2rem; }
.benefits-grid li { display: flex; align-items: flex-start; gap: .85rem; }
.benefits-grid .ico {
  flex: none; display: grid; place-items: center;
  width: 40px; height: 40px; padding: 9px;
  background: var(--card); border: 1px solid var(--line); border-radius: 50%;
  color: var(--accent-deep);
}
[data-theme="dark"] .benefits-grid .ico { color: var(--accent); }
.benefits-grid strong { display: block; font-size: .97rem; }
.benefits-grid span { font-size: .86rem; color: var(--ink-3); }

/* --------------------------------------------------------------------------
   Panel speakers
   -------------------------------------------------------------------------- */

.panel-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 1.15rem; }
.speaker-card {
  display: flex; flex-direction: column;
  padding: 1.4rem 1.4rem 1.7rem; text-align: center;
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  transition: transform .25s ease, box-shadow .25s ease;
}
.speaker-card:hover { transform: translateY(-5px); box-shadow: var(--shadow); }
.speaker-photo { margin: 0 0 1.2rem; }
.speaker-photo img {
  display: block; width: 160px; height: 160px; margin: 0 auto;
  aspect-ratio: 1/1; object-fit: cover;
  border-radius: 50%;
  border: 1px solid var(--line); background: var(--bg-3);
}
.speaker-card h3 { font-size: 1.05rem; line-height: 1.3; }
.speaker-role {
  margin: .35rem 0 .55rem; font-size: .82rem; font-weight: 600; line-height: 1.45;
  color: var(--accent-deep);
}
[data-theme="dark"] .speaker-role { color: var(--accent); }
.speaker-affiliation { font-size: .91rem; line-height: 1.5; color: var(--ink-3); }

/* --------------------------------------------------------------------------
   Contact
   -------------------------------------------------------------------------- */

.contact-grid { display: grid; grid-template-columns: 1fr .95fr; gap: clamp(2rem, 5vw, 4rem); align-items: start; }
.contact-list { display: grid; gap: 1.3rem; margin-top: 2.3rem; }
.contact-list li { display: flex; align-items: flex-start; gap: 1rem; }
.contact-list .ico { flex: none; width: 42px; height: 42px; padding: 10px; background: var(--mint-100); border-radius: 50%; color: var(--green-700); }
[data-theme="dark"] .contact-list .ico { background: var(--mint-100); color: var(--accent); }
.contact-list strong { display: block; font-size: 1rem; }
.contact-list span { font-size: .88rem; color: var(--ink-3); }
.contact-list a { text-decoration: none; }
.contact-list a:hover { text-decoration: underline; }

.action-card .btn { margin-bottom: .7rem; }
.closing-line {
  margin: 1.4rem 0 1rem; padding: 1.1rem 1.2rem;
  background: var(--mint-100); border-radius: var(--radius);
}
.closing-line p { margin: 0; font-size: .98rem; color: var(--ink-2); }
.closing-line strong { color: var(--green-700); }
[data-theme="dark"] .closing-line strong { color: var(--accent); }

/* --------------------------------------------------------------------------
   Footer
   -------------------------------------------------------------------------- */

.site-footer { background: var(--deep-900); color: #a9c1b9; padding-top: clamp(3rem, 6vw, 4.5rem); }
.footer-grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1.2fr; gap: 2.2rem; padding-bottom: 3rem; }
.footer-brand { display: flex; gap: .9rem; align-items: flex-start; }
.footer-brand .brand-mark { --mark-h: 50px; }
.footer-brand p { font-size: .88rem; line-height: 1.6; }
.footer-brand strong { color: #fff; font-size: 1.1rem; }
.footer-links h4, .footer-contact h4 {
  margin-bottom: 1rem; color: #fff; font-size: .76rem; font-weight: 600;
  letter-spacing: .16em; text-transform: uppercase;
}
.footer-links ul { display: grid; gap: .55rem; }
.footer-links a, .footer-contact a { color: #a9c1b9; text-decoration: none; font-size: .92rem; }
.footer-links a:hover, .footer-contact a:hover { color: var(--accent); text-decoration: underline; }
.footer-contact p { font-size: .92rem; }

.footer-base {
  display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: .8rem;
  padding-block: 1.4rem; border-top: 1px solid rgba(255, 255, 255, .12);
  font-size: .83rem;
}
.footer-base p { margin: 0; }
.footer-legal { display: flex; gap: 1.2rem; }
.footer-legal a { color: #a9c1b9; text-decoration: none; }
.footer-legal a:hover { color: var(--accent); }

/* --------------------------------------------------------------------------
   Back to top
   -------------------------------------------------------------------------- */

.to-top {
  position: fixed; right: clamp(1rem, 3vw, 2rem); bottom: clamp(1rem, 3vw, 2rem); z-index: 80;
  display: grid; place-items: center; width: 46px; height: 46px; padding: 0;
  background: var(--green-700); color: #fff; border: 0; border-radius: 50%;
  box-shadow: var(--shadow-lg); cursor: pointer;
  opacity: 0; transform: translateY(14px) scale(.9);
  transition: opacity .25s ease, transform .25s ease, background-color .2s ease;
}
.to-top.is-visible { opacity: 1; transform: none; }
.to-top:hover { background: var(--green-600); }
.to-top svg { width: 20px; height: 20px; }

/* --------------------------------------------------------------------------
   Reveal
   -------------------------------------------------------------------------- */

.reveal { opacity: 0; transform: translateY(22px); transition: opacity .7s cubic-bezier(.2, .7, .3, 1), transform .7s cubic-bezier(.2, .7, .3, 1); }
.reveal.is-in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .001ms !important; animation-iteration-count: 1 !important; transition-duration: .001ms !important; }
  .reveal { opacity: 1; transform: none; }
}

/* --------------------------------------------------------------------------
   Responsive
   -------------------------------------------------------------------------- */

@media (max-width: 1080px) {
  .nav { gap: 1rem; }
  .nav ul { gap: .7rem; }
  .nav a:not(.btn) { font-size: .87rem; }
  .hero-inner { grid-template-columns: 1fr; }
  .hero-card { max-width: 560px; }
  .narrow-grid, .submission-grid, .contact-grid { grid-template-columns: 1fr; }
  .theme-panel, .submit-panel, .action-card { position: static; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 900px) {
  :root { --header-h: 64px; }

  .nav-toggle { display: inline-grid; }
  .nav-cta { display: none; }
  .nav-wrap { backdrop-filter: none; background: var(--bg); }

  .nav {
    position: fixed; top: 0; right: 0; z-index: 95;
    flex-direction: column; align-items: stretch; justify-content: flex-start; gap: 1.2rem;
    width: min(320px, 84vw); height: 100dvh; padding: calc(var(--sticky-h) + 1.4rem) 1.6rem 2rem;
    background: var(--card); border-left: 1px solid var(--line);
    box-shadow: var(--shadow-lg);
    transform: translateX(102%); visibility: hidden;
    transition: transform .32s cubic-bezier(.3, .8, .3, 1), visibility .32s;
    overflow-y: auto;
  }
  .nav.is-open { transform: none; visibility: visible; }
  .nav ul { flex-direction: column; align-items: stretch; gap: 0; }
  .nav ul li { border-bottom: 1px solid var(--line); }
  .nav a:not(.btn) { display: block; padding: .95rem 0; font-size: 1.05rem; }
  .nav a:not(.btn)::after { display: none; }
  .nav-cta { display: inline-flex; width: 100%; margin-top: .4rem; }

  .topbar-note { display: none; }
  .topbar-inner { justify-content: flex-end; }

  .facts-grid { grid-template-columns: repeat(2, 1fr); }
  .split-box { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 1.8rem; }
}

@media (max-width: 640px) {
  body { font-size: 1.0625rem; }
  .hero-actions .btn { width: 100%; }
  .hero-chips { flex-direction: column; align-items: stretch; }
  .chip { justify-content: flex-start; }
  .facts-grid { grid-template-columns: 1fr; }
  .countdown-units { grid-template-columns: repeat(4, 1fr); gap: .4rem; }
  .footer-base { justify-content: flex-start; flex-direction: column; }
}

@media (max-width: 420px) {
  .countdown-units { grid-template-columns: repeat(2, 1fr); }
}

@media print {
  .site-header, .to-top, .topbar, .countdown, .form-actions, .nav-scrim, .hero-actions { display: none !important; }
  body { color: #000; background: #fff; }
  .section { padding-block: 1.5rem; }
  .reveal { opacity: 1 !important; transform: none !important; }
}