/* ============================================================
   ERCIYES SUMMIT — stylesheet
   Editorial / forest / academic
   ============================================================ */

:root {
  --color-bg: #0D1A0F;
  --color-bg-deep: #060c08;
  --color-surface: #152318;
  --color-surface-2: #1a2c1f;
  --color-accent: #3DBA6F;
  --color-accent-soft: #54d486;
  --color-accent-warm: #C5A55A;
  --color-text: #F0EDE6;
  --color-text-dim: #c8cdc1;
  --color-muted: #8A9E8D;
  --color-border: #2A3D2D;
  --color-border-soft: #1f2e22;

  --font-display: "DM Serif Display", "Cormorant Garamond", Georgia, serif;
  --font-display-alt: "Cormorant Garamond", Georgia, serif;
  --font-body: "Source Sans 3", system-ui, -apple-system, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, "SF Mono", Menlo, monospace;

  --shadow-card: 0 24px 48px -24px rgba(0,0,0,0.6), 0 2px 0 rgba(255,255,255,0.02) inset;
  --radius: 6px;
  --radius-lg: 14px;

  --container: min(1280px, 92vw);
  --gutter: clamp(20px, 4vw, 56px);

  --ease: cubic-bezier(.22,.61,.36,1);
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-body);
  font-weight: 400;
  font-size: 17px;
  line-height: 1.6;
  color: var(--color-text);
  background-color: var(--color-bg);
  background-image:
    radial-gradient(1200px 700px at 80% -10%, rgba(61,186,111,0.07), transparent 60%),
    radial-gradient(900px 600px at -10% 30%, rgba(197,165,90,0.04), transparent 60%);
  background-attachment: fixed;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

img { max-width: 100%; display: block; }
a { color: var(--color-accent); text-decoration: none; transition: color .2s var(--ease); }
a:hover { color: var(--color-accent-soft); }
button { font: inherit; }

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

[hidden] { display: none !important; }

.container { width: var(--container); margin-inline: auto; }

/* ---------- Reveal (scroll-triggered fade) ---------- */
[data-reveal] {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity .9s var(--ease), transform .9s var(--ease);
  will-change: opacity, transform;
}
[data-reveal].is-revealed {
  opacity: 1;
  transform: translateY(0);
}

/* ============================================================
   NAV
   ============================================================ */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  gap: 24px;
  padding: 14px var(--gutter);
  background: linear-gradient(to bottom, rgba(13,26,15,0.85), rgba(13,26,15,0.5));
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid transparent;
  transition: border-color .3s var(--ease), background .3s var(--ease), padding .3s var(--ease);
}
.nav.is-scrolled {
  background: rgba(8,16,10,0.92);
  border-bottom-color: var(--color-border-soft);
  padding-block: 10px;
}

.nav__brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--color-text);
}
.nav__mark { display: inline-flex; }
.nav__wordmark { display: flex; flex-direction: column; line-height: 1; }
.nav__title {
  font-family: var(--font-display);
  font-size: 19px;
  letter-spacing: 0.01em;
}
.nav__sub {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.18em;
  color: var(--color-muted);
  margin-top: 4px;
}

.nav__links {
  display: flex;
  gap: 28px;
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}
.nav__links a {
  color: var(--color-text-dim);
  position: relative;
  padding: 4px 0;
}
.nav__links a:hover { color: var(--color-accent); }
.nav__links a::after {
  content: "";
  position: absolute;
  left: 0; bottom: 0;
  height: 1px;
  width: 0;
  background: var(--color-accent);
  transition: width .25s var(--ease);
}
.nav__links a:hover::after { width: 100%; }

.nav__tools { display: flex; align-items: center; gap: 16px; }

.lang-toggle {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 6px 12px;
  background: transparent;
  border: 1px solid var(--color-border);
  border-radius: 999px;
  color: var(--color-text-dim);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  cursor: pointer;
  transition: border-color .2s var(--ease);
}
.lang-toggle:hover { border-color: var(--color-accent); }
.lang-toggle__opt { padding: 0 2px; transition: color .2s var(--ease); }
.lang-toggle__opt.is-active { color: var(--color-accent); }
.lang-toggle__sep { color: var(--color-border); }

.nav__burger {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  width: 26px;
  height: 18px;
  background: transparent;
  border: 0;
  cursor: pointer;
  padding: 0;
}
.nav__burger span {
  display: block;
  height: 2px;
  width: 100%;
  background: var(--color-text);
  transition: transform .3s var(--ease), opacity .2s var(--ease);
}
.nav__burger.is-open span:nth-child(1) { transform: translateY(8px) rotate(45deg); }
.nav__burger.is-open span:nth-child(2) { opacity: 0; }
.nav__burger.is-open span:nth-child(3) { transform: translateY(-8px) rotate(-45deg); }

/* ============================================================
   HERO
   ============================================================ */
.hero {
  position: relative;
  min-height: 100vh;
  min-height: 100svh;
  display: flex;
  align-items: center;
  padding-block: 120px 80px;
  overflow: hidden;
  isolation: isolate;
}
.hero__bg {
  position: absolute;
  inset: 0;
  z-index: -1;
}
.hero__art {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 65% center;
  opacity: 0.62;
  transform: scale(1.08);
  transition: transform 1.8s var(--ease);
  filter: saturate(0.92);
}
.hero.is-loaded .hero__art { transform: scale(1); }
.hero__overlay {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(95deg, rgba(13,26,15,0.92) 0%, rgba(13,26,15,0.72) 35%, rgba(13,26,15,0.4) 65%, rgba(13,26,15,0.55) 100%),
    linear-gradient(180deg, rgba(13,26,15,0.4) 0%, rgba(13,26,15,0) 25%, rgba(13,26,15,0.5) 80%, rgba(13,26,15,0.96) 100%);
}

.hero__content {
  width: var(--container);
  margin-inline: auto;
  position: relative;
  z-index: 1;
}

.hero__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--color-accent);
  padding: 8px 14px;
  border: 1px solid rgba(61,186,111,0.4);
  border-radius: 999px;
  background: rgba(61,186,111,0.06);
  margin-bottom: 32px;
}
.hero__eyebrow .dot {
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--color-accent);
  box-shadow: 0 0 0 4px rgba(61,186,111,0.18);
  animation: pulseDot 2.4s var(--ease) infinite;
}
@keyframes pulseDot {
  0%, 100% { box-shadow: 0 0 0 4px rgba(61,186,111,0.18); }
  50% { box-shadow: 0 0 0 8px rgba(61,186,111,0); }
}

.hero__title {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(60px, 12vw, 180px);
  line-height: 0.92;
  letter-spacing: -0.02em;
  margin: 0 0 18px;
  color: var(--color-text);
  text-shadow: 0 6px 30px rgba(0,0,0,0.4);
}
.hero__title-main, .hero__title-sub {
  display: block;
}
.hero__title-sub {
  font-family: var(--font-display-alt);
  font-style: italic;
  color: var(--color-accent);
  margin-left: clamp(40px, 10vw, 160px);
}

.hero__chips {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.32em;
  text-transform: uppercase;
  color: var(--color-text-dim);
  margin-bottom: 28px;
}
.hero__chip-sep { color: var(--color-accent-warm); }

.hero__tagline {
  max-width: 720px;
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(22px, 2.4vw, 32px);
  line-height: 1.25;
  letter-spacing: -0.01em;
  color: var(--color-text);
  margin: 0 0 22px;
}
.hero__lede {
  max-width: 640px;
  font-size: clamp(15px, 1.2vw, 17px);
  line-height: 1.6;
  color: var(--color-text-dim);
  font-family: var(--font-display-alt);
  font-style: italic;
  font-weight: 500;
  margin: 0 0 36px;
  border-left: 2px solid var(--color-accent-warm);
  padding-left: 20px;
}

.hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0;
  margin-bottom: 36px;
  border-top: 1px solid var(--color-border-soft);
  border-bottom: 1px solid var(--color-border-soft);
}
.hero__meta-block {
  flex: 1 1 220px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 18px 22px 18px 0;
  border-right: 1px solid var(--color-border-soft);
}
.hero__meta-block:last-child { border-right: 0; }
.hero__meta-label {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--color-muted);
}
.hero__meta-value {
  font-family: var(--font-display-alt);
  font-size: 18px;
  font-weight: 600;
  color: var(--color-text);
}

.hero__ctas { display: flex; flex-wrap: wrap; gap: 14px; }

.hero__scroll {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.4em;
  color: var(--color-muted);
}
.hero__scroll-line {
  width: 1px;
  height: 48px;
  background: linear-gradient(to bottom, var(--color-accent), transparent);
  position: relative;
  overflow: hidden;
}
.hero__scroll-line::after {
  content: "";
  position: absolute;
  inset: 0;
  background: var(--color-accent);
  animation: scrollHint 2.2s var(--ease) infinite;
}
@keyframes scrollHint {
  0% { transform: translateY(-100%); }
  100% { transform: translateY(100%); }
}

/* ============================================================
   BUTTONS
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 14px 28px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  border-radius: 2px;
  cursor: pointer;
  border: 1px solid transparent;
  transition: transform .25s var(--ease), background-color .25s var(--ease), color .25s var(--ease), border-color .25s var(--ease), box-shadow .25s var(--ease);
}
.btn:hover { transform: translateY(-2px); }

.btn--primary {
  background: var(--color-accent);
  color: var(--color-bg-deep);
  box-shadow: 0 12px 30px -12px rgba(61,186,111,0.6);
}
.btn--primary:hover {
  background: var(--color-accent-soft);
  color: var(--color-bg-deep);
  box-shadow: 0 18px 36px -14px rgba(61,186,111,0.7);
}

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

/* ============================================================
   SECTION HEADERS (shared)
   ============================================================ */
section { padding-block: clamp(80px, 10vw, 140px); position: relative; }

.section-head { max-width: 880px; margin-bottom: 56px; }
.section-head--centered { margin-inline: auto; text-align: center; }

.section-kicker {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 18px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--color-border);
}
.section-title {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(36px, 5vw, 64px);
  line-height: 1.05;
  letter-spacing: -0.015em;
  color: var(--color-text);
  margin: 0 0 18px;
}
.section-sub {
  font-family: var(--font-display-alt);
  font-style: italic;
  font-size: clamp(18px, 1.6vw, 22px);
  color: var(--color-text-dim);
  max-width: 720px;
  margin: 0;
}
.section-head--centered .section-sub { margin-inline: auto; }

/* ============================================================
   ABOUT
   ============================================================ */
.about { background: linear-gradient(180deg, transparent 0%, rgba(0,0,0,0.18) 100%); }
.about__grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: clamp(32px, 5vw, 80px);
  align-items: start;
}
.about__lede p {
  font-family: var(--font-display-alt);
  font-size: clamp(20px, 1.7vw, 24px);
  line-height: 1.55;
  color: var(--color-text);
  margin: 0 0 22px;
  font-weight: 500;
}
.about__lede p:first-of-type::first-letter {
  font-family: var(--font-display);
  font-size: 4em;
  float: left;
  line-height: 0.85;
  padding: 6px 12px 0 0;
  color: var(--color-accent);
}
.about__signature {
  font-style: italic;
  color: var(--color-accent-warm);
  font-size: 18px !important;
  border-left: 2px solid var(--color-accent-warm);
  padding-left: 16px;
  margin-top: 24px !important;
}

.about__stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  background: var(--color-border);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  overflow: hidden;
}
.stat {
  background: var(--color-surface);
  padding: 32px 24px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  transition: background-color .3s var(--ease);
}
.stat:hover { background: var(--color-surface-2); }
.stat__num {
  font-family: var(--font-display);
  font-size: clamp(46px, 5vw, 64px);
  line-height: 1;
  color: var(--color-accent);
  letter-spacing: -0.02em;
}
.stat__label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--color-muted);
}

.divider-art {
  margin-top: 64px;
  width: 100%;
  max-width: 720px;
  margin-inline: auto;
  opacity: 0.85;
  pointer-events: none;
}
.divider-art img { width: 100%; height: auto; display: block; }

/* ============================================================
   PROGRAMME
   ============================================================ */
.programme {
  background: linear-gradient(180deg, var(--color-bg) 0%, var(--color-bg-deep) 100%);
  border-top: 1px solid var(--color-border-soft);
  border-bottom: 1px solid var(--color-border-soft);
}

.panel-tabs {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
  margin-bottom: 40px;
}
.panel-tab {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 12px;
  padding: 22px 22px;
  text-align: left;
  background: transparent;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  color: var(--color-text-dim);
  cursor: pointer;
  transition: background-color .25s var(--ease), border-color .25s var(--ease), color .25s var(--ease), transform .25s var(--ease);
  position: relative;
  overflow: hidden;
}
.panel-tab::before {
  content: "";
  position: absolute;
  left: 0; top: 0;
  width: 3px; height: 100%;
  background: var(--color-accent);
  transform: scaleY(0);
  transform-origin: bottom;
  transition: transform .3s var(--ease);
}
.panel-tab:hover::before, .panel-tab.is-active::before { transform: scaleY(1); transform-origin: top; }
.panel-tab:hover { border-color: var(--color-accent); color: var(--color-text); transform: translateY(-2px); }
.panel-tab.is-active {
  background: var(--color-surface);
  border-color: var(--color-accent);
  color: var(--color-text);
}
.panel-tab__num {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.24em;
  color: var(--color-accent);
}
.panel-tab__title {
  font-family: var(--font-display-alt);
  font-size: 19px;
  font-weight: 600;
  line-height: 1.2;
  color: inherit;
}

.panel-pane {
  display: grid;
  grid-template-columns: 320px 1fr;
  gap: clamp(32px, 5vw, 64px);
  padding: clamp(28px, 3vw, 40px);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  animation: paneIn .5s var(--ease);
}
@keyframes paneIn {
  from { opacity: 0; transform: translateY(12px); }
  to   { opacity: 1; transform: translateY(0); }
}
.panel-pane[hidden] { display: none; }

.panel-pane__head { border-right: 1px solid var(--color-border-soft); padding-right: 24px; }
.panel-pane__day {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--color-accent-warm);
  display: block;
  margin-bottom: 14px;
}
.panel-pane__head h3 {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(26px, 2.4vw, 34px);
  line-height: 1.15;
  margin: 0 0 18px;
  color: var(--color-text);
  letter-spacing: -0.01em;
}
.panel-pane__abstract {
  font-family: var(--font-display-alt);
  font-style: italic;
  font-size: 17px;
  line-height: 1.55;
  color: var(--color-text-dim);
  margin: 0;
}

.panel-pane__roster { display: flex; flex-direction: column; gap: 20px; }
.roster-row {
  display: grid;
  grid-template-columns: 140px 1fr;
  gap: 20px;
  align-items: start;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--color-border-soft);
}
.roster-row:last-child { border-bottom: 0; padding-bottom: 0; }
.roster-row__role {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-muted);
  padding-top: 4px;
}
.roster-row__people {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.roster-name {
  display: inline-flex;
  align-items: baseline;
  gap: 6px;
  padding: 8px 14px;
  background: var(--color-surface-2);
  border: 1px solid var(--color-border-soft);
  border-radius: 999px;
  font-size: 14px;
  color: var(--color-text);
  transition: border-color .2s var(--ease), background-color .2s var(--ease);
}
.roster-name:hover { border-color: var(--color-accent); background: rgba(61,186,111,0.08); }
.roster-name em {
  font-style: italic;
  color: var(--color-muted);
  font-size: 12px;
  font-family: var(--font-display-alt);
}
.roster-name--tba { color: var(--color-muted); border-style: dashed; }
.roster-aff {
  display: inline-block;
  font-style: italic;
  font-family: var(--font-display-alt);
  color: var(--color-muted);
  font-size: 14px;
  padding: 8px 4px;
}

/* ============================================================
   SPEAKERS
   ============================================================ */
.speaker-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 20px;
}
.speaker-card {
  position: relative;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: border-color .3s var(--ease), transform .3s var(--ease);
  display: flex;
  flex-direction: column;
}
.speaker-card:hover {
  border-color: var(--color-accent);
  transform: translateY(-4px);
}
.speaker-card__avatar {
  aspect-ratio: 4/4.4;
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--avatar-c1, #2a8d52) 0%, var(--avatar-c2, #1a5e36) 100%);
  position: relative;
  overflow: hidden;
}
.speaker-card__avatar:not(.has-photo)::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 30% 20%, rgba(255,255,255,0.18), transparent 50%),
    repeating-linear-gradient(45deg, rgba(0,0,0,0.04) 0 2px, transparent 2px 8px);
  pointer-events: none;
}
.speaker-card__photo {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 0;
  transition: transform .5s var(--ease), filter .35s var(--ease);
  filter: saturate(0.85) contrast(1.05);
}
.speaker-card:hover .speaker-card__photo {
  transform: scale(1.04);
  filter: saturate(1) contrast(1);
}
.speaker-card__avatar.has-photo::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(13,26,15,0) 50%, rgba(13,26,15,0.55) 100%);
  z-index: 1;
  pointer-events: none;
}
.speaker-card__initials {
  font-family: var(--font-display);
  font-size: 56px;
  font-weight: 400;
  color: rgba(255,255,255,0.92);
  letter-spacing: -0.02em;
  text-shadow: 0 4px 18px rgba(0,0,0,0.3);
  position: relative;
  z-index: 1;
}
.speaker-card__panel-tag {
  position: absolute;
  top: 12px; left: 12px;
  padding: 5px 10px;
  background: rgba(13,26,15,0.85);
  backdrop-filter: blur(6px);
  border: 1px solid var(--color-border);
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-accent);
  z-index: 2;
}
.speaker-card__body {
  padding: 18px 18px 22px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  flex: 1;
}
.speaker-card__name {
  font-family: var(--font-display-alt);
  font-weight: 700;
  font-size: 19px;
  line-height: 1.2;
  margin: 0;
  color: var(--color-text);
  letter-spacing: -0.005em;
}
.speaker-card__title {
  font-size: 13px;
  color: var(--color-muted);
  line-height: 1.4;
  margin: 0;
}
.speaker-card__topic {
  margin-top: 8px;
  padding-top: 10px;
  border-top: 1px solid var(--color-border-soft);
  font-family: var(--font-display-alt);
  font-style: italic;
  font-size: 14px;
  color: var(--color-text-dim);
  line-height: 1.4;
}

.speaker-card__overlay {
  position: absolute;
  inset: 0;
  padding: 22px;
  background: linear-gradient(180deg, rgba(13,26,15,0.96), rgba(13,26,15,0.99));
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  gap: 8px;
  transform: translateY(101%);
  transition: transform .35s var(--ease);
  pointer-events: none;
}
.speaker-card:hover .speaker-card__overlay { transform: translateY(0); }
.speaker-card__overlay-name {
  font-family: var(--font-display);
  font-size: 22px;
  line-height: 1.1;
  color: var(--color-text);
  margin: 0;
}
.speaker-card__overlay-bio {
  font-family: var(--font-display-alt);
  font-style: italic;
  font-size: 14px;
  line-height: 1.5;
  color: var(--color-text-dim);
  margin: 0;
}
.speaker-card__overlay-tag {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--color-accent);
}
.speaker-card__overlay-cta {
  display: inline-block;
  margin-top: auto;
  padding-top: 14px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-accent);
  border-top: 1px solid rgba(61,186,111,0.3);
}
.speaker-card { cursor: pointer; }
.speaker-card:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 3px;
}

/* ============================================================
   OPENING SESSION
   ============================================================ */
.opening {
  background:
    linear-gradient(180deg, var(--color-bg-deep) 0%, var(--color-bg) 100%);
  position: relative;
}
.opening::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(800px 400px at 50% 0%, rgba(197,165,90,0.08), transparent 70%);
  pointer-events: none;
}

.opening-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
  align-items: stretch;
}

.opening-card {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 24px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  transition: border-color .3s var(--ease), transform .3s var(--ease);
  position: relative;
  overflow: hidden;
}
.opening-card:hover {
  border-color: var(--color-accent-warm);
  transform: translateY(-3px);
}
.opening-card--feature {
  grid-column: 1 / -1;
  padding: 36px;
  background:
    linear-gradient(135deg, rgba(197,165,90,0.10), rgba(61,186,111,0.05) 60%, transparent 100%),
    var(--color-surface);
  border-color: var(--color-accent-warm);
}
.opening-card--feature .opening-card__avatar { width: 100px; height: 100px; font-size: 32px; }
.opening-card--feature .opening-card__name { font-size: 32px; }

.opening-card__avatar {
  width: 72px; height: 72px;
  flex: 0 0 auto;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-warm) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-size: 22px;
  color: var(--color-bg-deep);
  position: relative;
  letter-spacing: -0.02em;
  box-shadow: 0 4px 24px -8px rgba(61,186,111,0.45);
  overflow: hidden;
}
.opening-card__avatar:not(.has-photo)::before {
  content: attr(data-initials);
}
.opening-card__avatar::after {
  content: "";
  position: absolute;
  inset: -3px;
  border-radius: 50%;
  border: 1px solid var(--color-accent-warm);
  opacity: 0.4;
}
.opening-card__photo {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 50%;
}
.opening-card.is-clickable {
  cursor: pointer;
}
.opening-card.is-clickable:focus-visible {
  outline: 2px solid var(--color-accent-warm);
  outline-offset: 3px;
}

.opening-card__body { display: flex; flex-direction: column; gap: 4px; }
.opening-card__role {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--color-accent-warm);
}
.opening-card__name {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: 22px;
  line-height: 1.15;
  margin: 0;
  color: var(--color-text);
  letter-spacing: -0.01em;
}
.opening-card__title {
  font-family: var(--font-display-alt);
  font-style: italic;
  font-size: 15px;
  color: var(--color-text-dim);
  margin: 0;
  line-height: 1.4;
}

/* ============================================================
   INSTITUTIONS
   ============================================================ */
.institutions {
  border-top: 1px solid var(--color-border-soft);
}
.institutions__group { margin-bottom: 56px; }
.institutions__group:last-child { margin-bottom: 0; }

.institutions__heading {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--color-muted);
  margin: 0 0 20px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--color-border-soft);
}

.logo-strip {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 1px;
  background: var(--color-border-soft);
  border: 1px solid var(--color-border-soft);
  border-radius: var(--radius);
  overflow: hidden;
}
.logo-strip--small { grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); }

.logo-tile {
  background: var(--color-surface);
  padding: 22px 16px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-start;
  gap: 14px;
  text-align: center;
  min-height: 170px;
  transition: background-color .3s var(--ease), color .3s var(--ease);
}
.logo-tile:hover { background: var(--color-surface-2); }
.logo-tile__mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 78px;
  padding: 10px 14px;
  background: rgba(255, 253, 246, 0.96);
  border-radius: 4px;
  border: 1px solid rgba(240, 237, 230, 0.08);
  transition: background-color .3s var(--ease);
}
.logo-tile__mark img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  display: block;
}
.logo-tile:hover .logo-tile__mark { background: #ffffff; }

.logo-tile--coordinator {
  background: linear-gradient(135deg, rgba(61,186,111,0.12), rgba(197,165,90,0.08));
  border: 1px solid rgba(61,186,111,0.2);
}
.logo-tile--coordinator .logo-tile__mark {
  background: rgba(255, 253, 246, 0.98);
}
.logo-tile__name {
  font-size: 12.5px;
  line-height: 1.35;
  color: var(--color-text-dim);
  font-weight: 500;
  letter-spacing: 0.005em;
  margin-top: auto;
}
.logo-tile__sub {
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-top: -4px;
}

/* ============================================================
   VENUE
   ============================================================ */
.venue { background: var(--color-bg-deep); border-top: 1px solid var(--color-border-soft); }

.venue__grid {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: clamp(32px, 5vw, 80px);
  align-items: stretch;
}
.venue__copy { display: flex; flex-direction: column; gap: 28px; }
.venue__address {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--color-border-soft);
}
.venue__name {
  font-family: var(--font-display);
  font-size: clamp(24px, 2.4vw, 32px);
  line-height: 1.15;
  color: var(--color-text);
}
.venue__line {
  font-family: var(--font-display-alt);
  font-style: italic;
  color: var(--color-text-dim);
  font-size: 17px;
}

.venue__description {
  font-size: 17px;
  line-height: 1.65;
  color: var(--color-text-dim);
  margin: 0;
}

.venue__facts {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  background: var(--color-border-soft);
  border: 1px solid var(--color-border-soft);
  border-radius: var(--radius);
  overflow: hidden;
  margin: 0;
}
.venue__facts > div {
  background: var(--color-surface);
  padding: 18px 20px;
}
.venue__facts dt {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--color-muted);
  margin-bottom: 4px;
}
.venue__facts dd {
  margin: 0;
  font-family: var(--font-display);
  font-size: 22px;
  color: var(--color-text);
  line-height: 1.1;
}

.venue__map {
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--color-border);
  min-height: 420px;
  position: relative;
}
.venue__map iframe {
  width: 100%;
  height: 100%;
  border: 0;
  filter: grayscale(0.3) hue-rotate(-15deg) brightness(0.85);
  position: absolute;
  inset: 0;
}

/* ============================================================
   PULL QUOTE (About → key motto)
   ============================================================ */
.pull-quote {
  margin: 80px auto 0;
  max-width: 920px;
  padding: 36px clamp(24px, 4vw, 56px);
  border-top: 1px solid var(--color-border-soft);
  border-bottom: 1px solid var(--color-border-soft);
  text-align: center;
  position: relative;
}
.pull-quote::before {
  content: "“";
  position: absolute;
  top: -10px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--color-bg);
  padding: 0 16px;
  font-family: var(--font-display);
  font-size: 56px;
  line-height: 1;
  color: var(--color-accent-warm);
}
.pull-quote p {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(22px, 2.4vw, 30px);
  line-height: 1.3;
  letter-spacing: -0.01em;
  color: var(--color-text);
  margin: 0;
}
.pull-quote__footer {
  margin-top: 18px;
  font-family: var(--font-display-alt);
  font-style: italic;
  font-size: 16px;
  color: var(--color-accent-warm);
  letter-spacing: 0.01em;
}

/* ============================================================
   CONTACT SECTION (replaces register)
   ============================================================ */
.contact {
  background:
    radial-gradient(900px 500px at 50% 0%, rgba(61,186,111,0.06), transparent 70%),
    var(--color-bg);
  border-top: 1px solid var(--color-border-soft);
}
.contact__inner {
  max-width: 1100px;
  margin: 0 auto;
  text-align: center;
}
.contact__title {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(32px, 4vw, 52px);
  line-height: 1.1;
  letter-spacing: -0.015em;
  color: var(--color-text);
  margin: 18px 0 16px;
}
.contact__sub {
  font-family: var(--font-display-alt);
  font-style: italic;
  font-size: clamp(17px, 1.4vw, 20px);
  color: var(--color-text-dim);
  max-width: 720px;
  margin: 0 auto 48px;
  line-height: 1.55;
}
.contact__channels {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 16px;
  text-align: left;
}
.contact__card {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 24px 26px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  transition: border-color .25s var(--ease), transform .25s var(--ease), background-color .25s var(--ease);
  text-decoration: none;
}
a.contact__card:hover {
  border-color: var(--color-accent);
  background: var(--color-surface-2);
  transform: translateY(-2px);
}
.contact__card-label {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--color-muted);
}
.contact__card-value {
  font-family: var(--font-display-alt);
  font-weight: 700;
  font-size: 20px;
  color: var(--color-text);
  line-height: 1.2;
  margin-top: 2px;
}
.contact__card-meta {
  font-size: 13px;
  color: var(--color-muted);
  margin-top: 4px;
}
a.contact__card .contact__card-value { color: var(--color-accent); }
a.contact__card:hover .contact__card-value { color: var(--color-accent-soft); }

/* ============================================================
   COMING SOON PLACEHOLDERS
   ============================================================ */
.coming-soon {
  grid-column: 1 / -1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: clamp(48px, 8vw, 96px) 24px;
  background:
    radial-gradient(800px 300px at 50% 0%, rgba(61,186,111,0.06), transparent 70%),
    var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  position: relative;
  overflow: hidden;
}
.coming-soon::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    repeating-linear-gradient(45deg, rgba(61,186,111,0.02) 0 12px, transparent 12px 24px);
  pointer-events: none;
}
.coming-soon__icon {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  background: rgba(61,186,111,0.1);
  border: 1px solid rgba(61,186,111,0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-accent);
  margin-bottom: 22px;
  position: relative;
}
.coming-soon__icon::after {
  content: "";
  position: absolute;
  inset: -6px;
  border-radius: 50%;
  border: 1px solid var(--color-accent);
  opacity: 0.25;
  animation: comingSoonPulse 2.5s var(--ease) infinite;
}
@keyframes comingSoonPulse {
  0%, 100% { transform: scale(1); opacity: 0.25; }
  50% { transform: scale(1.15); opacity: 0; }
}
.coming-soon__tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--color-accent);
  padding: 6px 14px;
  border: 1px solid rgba(61,186,111,0.4);
  border-radius: 999px;
  background: rgba(61,186,111,0.08);
  margin-bottom: 18px;
  position: relative;
  z-index: 1;
}
.coming-soon__title {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(24px, 3vw, 36px);
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: var(--color-text);
  margin: 0 0 12px;
  max-width: 720px;
  position: relative;
  z-index: 1;
}
.coming-soon__sub {
  font-family: var(--font-display-alt);
  font-style: italic;
  font-size: clamp(15px, 1.3vw, 17px);
  line-height: 1.55;
  color: var(--color-text-dim);
  margin: 0;
  max-width: 560px;
  position: relative;
  z-index: 1;
}

/* Compact variant — for inside panel-pane */
.coming-soon--compact {
  padding: 32px 24px;
  border-style: dashed;
  background: var(--color-bg-deep);
}
.coming-soon--compact .coming-soon__icon {
  width: 48px; height: 48px;
  margin-bottom: 14px;
}
.coming-soon--compact .coming-soon__icon svg { width: 26px; height: 26px; }
.coming-soon--compact .coming-soon__title {
  font-size: clamp(18px, 2vw, 22px);
  margin-bottom: 8px;
}
.coming-soon--compact .coming-soon__sub {
  font-size: 14px;
}

/* When grid is in coming-soon mode, override layout */
.speaker-grid--coming-soon,
.opening-grid--coming-soon {
  display: block;
}

/* ============================================================
   COOKIE BANNER
   ============================================================ */
.cookie-banner {
  position: fixed;
  bottom: 20px;
  left: 20px;
  right: 20px;
  z-index: 90;
  max-width: 720px;
  margin-inline: auto;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 18px 22px;
  box-shadow: 0 24px 48px -16px rgba(0,0,0,0.6);
  transform: translateY(120%);
  opacity: 0;
  transition: transform .35s var(--ease), opacity .35s var(--ease);
}
.cookie-banner.is-show {
  transform: translateY(0);
  opacity: 1;
}
.cookie-banner__inner {
  display: flex;
  align-items: center;
  gap: 18px;
  flex-wrap: wrap;
}
.cookie-banner__text {
  flex: 1;
  min-width: 280px;
  margin: 0;
  font-size: 13.5px;
  line-height: 1.5;
  color: var(--color-text-dim);
}
.cookie-banner__actions {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-shrink: 0;
}
.cookie-banner__link {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-text-dim);
}
.cookie-banner__link:hover { color: var(--color-accent); }
.cookie-banner__btn {
  padding: 10px 20px;
  background: var(--color-accent);
  color: var(--color-bg-deep);
  border: 0;
  border-radius: 4px;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  cursor: pointer;
  transition: background-color .2s var(--ease);
}
.cookie-banner__btn:hover { background: var(--color-accent-soft); }

@media (max-width: 600px) {
  .cookie-banner { left: 12px; right: 12px; padding: 14px 16px; }
  .cookie-banner__inner { flex-direction: column; align-items: flex-start; gap: 12px; }
  .cookie-banner__actions { align-self: flex-end; }
}

/* ============================================================
   MODAL — Speaker detail
   ============================================================ */
.modal {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity .25s var(--ease);
}
.modal.is-open {
  opacity: 1;
  pointer-events: auto;
}
.modal__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(6, 12, 8, 0.78);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}
.modal__panel {
  position: relative;
  width: min(960px, 92vw);
  max-height: min(86vh, 720px);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  display: grid;
  grid-template-columns: 360px 1fr;
  overflow: hidden;
  box-shadow: 0 60px 120px -40px rgba(0,0,0,0.7);
  transform: translateY(20px) scale(0.98);
  transition: transform .35s var(--ease);
}
.modal.is-open .modal__panel { transform: translateY(0) scale(1); }

.modal__close {
  position: absolute;
  top: 16px;
  right: 16px;
  z-index: 2;
  width: 36px; height: 36px;
  border: 0;
  border-radius: 50%;
  background: rgba(13,26,15,0.7);
  color: var(--color-text);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background-color .2s var(--ease), color .2s var(--ease);
}
.modal__close:hover {
  background: var(--color-accent);
  color: var(--color-bg-deep);
}

.modal__media {
  background: var(--color-bg-deep);
  position: relative;
  overflow: hidden;
}
.modal__photo {
  position: relative;
  width: 100%;
  height: 100%;
  min-height: 360px;
  background: linear-gradient(135deg, var(--avatar-c1, #2a8d52) 0%, var(--avatar-c2, #1a5e36) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
}
.modal__photo:not(.has-photo)::before {
  content: attr(data-initials);
  font-family: var(--font-display);
  font-size: 100px;
  color: rgba(255,255,255,0.9);
  letter-spacing: -0.02em;
}
.modal__photo:not(.has-photo)::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 30% 20%, rgba(255,255,255,0.18), transparent 50%),
    repeating-linear-gradient(45deg, rgba(0,0,0,0.04) 0 2px, transparent 2px 8px);
  pointer-events: none;
}
.modal__photo img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.92);
}

.modal__body {
  padding: clamp(28px, 3vw, 44px);
  overflow-y: auto;
  max-height: min(86vh, 720px);
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.modal__body::-webkit-scrollbar { width: 6px; }
.modal__body::-webkit-scrollbar-track { background: transparent; }
.modal__body::-webkit-scrollbar-thumb { background: var(--color-border); border-radius: 3px; }

.modal__panel-tag {
  display: inline-block;
  padding: 6px 14px;
  background: rgba(61,186,111,0.1);
  border: 1px solid rgba(61,186,111,0.3);
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--color-accent);
  align-self: flex-start;
}

.modal__name {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(28px, 3vw, 38px);
  line-height: 1.1;
  letter-spacing: -0.015em;
  color: var(--color-text);
  margin: 4px 0 0;
}
.modal__title {
  font-family: var(--font-display-alt);
  font-style: italic;
  font-size: 17px;
  color: var(--color-text-dim);
  margin: 0;
  line-height: 1.4;
}
.modal__topic {
  font-family: var(--font-display-alt);
  font-style: italic;
  font-size: 16px;
  color: var(--color-accent-warm);
  margin: 8px 0 0;
  padding: 10px 14px;
  border-left: 2px solid var(--color-accent-warm);
  background: rgba(197,165,90,0.05);
  line-height: 1.45;
}
.modal__bio {
  margin-top: 8px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.modal__bio p {
  margin: 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--color-text-dim);
}
.modal__bio-note {
  font-style: italic;
  color: var(--color-muted) !important;
  font-size: 13px !important;
  padding-top: 8px;
  border-top: 1px dashed var(--color-border-soft);
}
.modal__links {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 8px;
}
.modal__link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  border: 1px solid var(--color-border);
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-text-dim);
  transition: border-color .2s var(--ease), color .2s var(--ease);
}
.modal__link:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

@media (max-width: 760px) {
  .modal__panel {
    grid-template-columns: 1fr;
    max-height: 92vh;
  }
  .modal__photo { min-height: 280px; }
  .modal__photo:not(.has-photo)::before { font-size: 72px; }
  .modal__body { max-height: none; }
}

/* ============================================================
   FOOTER
   ============================================================ */
.footer {
  background: var(--color-bg-deep);
  padding-block: 56px 36px;
  border-top: 1px solid var(--color-border-soft);
}
.footer__inner {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 40px;
  align-items: start;
}
.footer__brand { display: flex; flex-direction: column; gap: 6px; }
.footer__title {
  font-family: var(--font-display);
  font-size: 24px;
  color: var(--color-text);
}
.footer__sub {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--color-accent);
}
.footer__date {
  font-family: var(--font-display-alt);
  font-style: italic;
  color: var(--color-text-dim);
  font-size: 14px;
  margin-top: 6px;
}

.footer__nav {
  display: flex;
  flex-direction: column;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}
.footer__nav a { color: var(--color-text-dim); }
.footer__nav a:hover { color: var(--color-accent); }

.footer__social {
  display: flex;
  gap: 14px;
  align-items: center;
}
.footer__social a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px; height: 38px;
  border: 1px solid var(--color-border);
  border-radius: 50%;
  color: var(--color-text-dim);
  transition: border-color .2s var(--ease), color .2s var(--ease), transform .2s var(--ease);
}
.footer__social a:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
  transform: translateY(-2px);
}

.footer__legal {
  grid-column: 1 / -1;
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--color-muted);
  border-top: 1px solid var(--color-border-soft);
  padding-top: 24px;
  margin-top: 24px;
}
.footer__sep { color: var(--color-border); }

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 980px) {
  .nav__links { display: none; }
  .nav__burger { display: inline-flex; }

  .nav__links.is-open {
    display: flex;
    position: fixed;
    inset: 64px 0 0 0;
    flex-direction: column;
    align-items: flex-start;
    gap: 24px;
    padding: 40px var(--gutter);
    background: rgba(8,16,10,0.98);
    backdrop-filter: blur(20px);
    font-size: 18px;
    height: calc(100vh - 64px);
  }

  .about__grid { grid-template-columns: 1fr; }
  .panel-tabs { grid-template-columns: 1fr 1fr; }
  .panel-pane { grid-template-columns: 1fr; }
  .panel-pane__head { border-right: 0; padding-right: 0; padding-bottom: 24px; border-bottom: 1px solid var(--color-border-soft); }
  .roster-row { grid-template-columns: 1fr; gap: 8px; }
  .venue__grid { grid-template-columns: 1fr; }
  .venue__map { min-height: 320px; }
  .footer__inner { grid-template-columns: 1fr; }
  .form-row--two { grid-template-columns: 1fr; }
  .opening-card--feature { padding: 24px; }
  .opening-card--feature .opening-card__name { font-size: 24px; }
}

@media (max-width: 640px) {
  body { font-size: 16px; }
  section { padding-block: 64px; }
  .hero { padding-block: 100px 100px; }
  .hero__title-sub { margin-left: 24px; }
  .hero__meta-block { padding: 14px 0; border-right: 0; border-bottom: 1px solid var(--color-border-soft); }
  .hero__meta-block:last-child { border-bottom: 0; }
  .panel-tabs { grid-template-columns: 1fr; }
  .about__stats { grid-template-columns: 1fr 1fr; }
  .speaker-grid { grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); }
  .speaker-card__name { font-size: 17px; }
  .opening-card { flex-direction: column; align-items: flex-start; text-align: left; }
  .opening-card__avatar { width: 56px; height: 56px; font-size: 18px; }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
  [data-reveal] { opacity: 1; transform: none; }
}