@import url('https://cdn.jsdelivr.net/gh/orioncactus/pretendard@v1.3.9/dist/web/variable/pretendardvariable-dynamic-subset.min.css');
@import url('https://fonts.googleapis.com/css2?family=DM+Serif+Display:ital@0;1&family=JetBrains+Mono:wght@400;500&display=swap');

:root {
  --bg: #0a0908;
  --bg-2: #14110d;
  --surface: #1a1612;
  --surface-2: #221c16;
  --line: rgba(255, 240, 220, 0.08);
  --line-strong: rgba(255, 240, 220, 0.16);
  --ink: #f5efe4;
  --ink-2: #c9c1b3;
  --ink-3: #877f73;
  --ink-4: #4a443d;
  --orange: #F37321;
  --orange-2: #FFB97A;
  --orange-glow: rgba(243, 115, 33, 0.22);
  --serif: "DM Serif Display", "Times New Roman", serif;
  --sans: "Pretendard Variable", "Pretendard", -apple-system, BlinkMacSystemFont, system-ui, sans-serif;
  --mono: "JetBrains Mono", ui-monospace, monospace;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html, body { background: var(--bg); color: var(--ink); font-family: var(--sans); -webkit-font-smoothing: antialiased; }
body { overflow-x: hidden; }
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; color: inherit; }

::selection { background: var(--orange); color: #0a0908; }

/* ---------- nav ---------- */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  display: flex; align-items: center; justify-content: space-between;
  padding: 18px 40px;
  background: linear-gradient(to bottom, rgba(10,9,8,0.85), rgba(10,9,8,0));
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  transition: background 0.3s, padding 0.3s;
}
.nav.scrolled {
  background: rgba(10,9,8,0.92);
  border-bottom: 1px solid var(--line);
  padding: 14px 40px;
}
.nav-logo { display: flex; align-items: center; gap: 14px; }
.nav-logo img { height: 32px; }
.nav-logo-divider { width: 1px; height: 22px; background: var(--line-strong); }
.nav-logo-label {
  font-size: 11px; letter-spacing: 0.18em; text-transform: uppercase;
  color: var(--ink-2); font-weight: 500;
}
.nav-links { display: flex; gap: 30px; }
.nav-links a {
  font-size: 13px; color: var(--ink-2); font-weight: 500;
  transition: color 0.2s; padding: 6px 0;
}
.nav-links a:hover { color: var(--ink); }
.nav-cta {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 10px 18px; border: 1px solid var(--orange);
  border-radius: 2px; color: var(--orange); font-size: 12px;
  font-weight: 600; letter-spacing: 0.06em;
  transition: background 0.2s, color 0.2s;
  white-space: nowrap;
}
.nav-cta:hover { background: var(--orange); color: #0a0908; }

/* ---------- hero ---------- */
.hero {
  position: relative; height: 100vh; min-height: 720px;
  overflow: hidden; padding: 0;
}
.hero-video {
  position: absolute; inset: 0;
  width: 100%; height: 100%; object-fit: cover;
  filter: brightness(0.55) contrast(1.05);
}
.hero-overlay {
  position: absolute; inset: 0;
  background:
    radial-gradient(ellipse at 30% 50%, rgba(243,115,33,0.18) 0%, transparent 55%),
    linear-gradient(180deg, rgba(10,9,8,0.4) 0%, rgba(10,9,8,0.2) 40%, rgba(10,9,8,0.95) 100%);
}
.hero-grid-overlay {
  position: absolute; inset: 0; pointer-events: none;
  background-image:
    linear-gradient(90deg, rgba(255,240,220,0.04) 1px, transparent 1px);
  background-size: 12.5% 100%;
}
.hero-content {
  position: relative; z-index: 2;
  height: 100%; padding: 0 60px 80px;
  display: flex; flex-direction: column; justify-content: flex-end;
}
.hero-eyebrow {
  display: flex; align-items: center; gap: 14px;
  font-size: 11px; letter-spacing: 0.32em; text-transform: uppercase;
  color: var(--orange-2); font-weight: 600;
  margin-bottom: 28px;
}
.hero-eyebrow .dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--orange); box-shadow: 0 0 14px var(--orange);
  animation: pulse 2s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.85); }
}
.hero-title {
  font-size: clamp(56px, 8vw, 132px);
  font-weight: 800; line-height: 0.95; letter-spacing: -0.03em;
  margin-bottom: 12px;
}
.hero-title .accent {
  background: linear-gradient(135deg, var(--orange) 0%, var(--orange-2) 100%);
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent;
  font-family: var(--serif); font-style: italic;
  font-weight: 400; letter-spacing: -0.02em;
}
.hero-subtitle {
  font-size: clamp(16px, 1.4vw, 22px); color: var(--ink-2);
  max-width: 640px; line-height: 1.55; margin-top: 24px;
  font-weight: 400;
}
.hero-meta {
  display: flex; gap: 56px; margin-top: 56px; padding-top: 28px;
  border-top: 1px solid var(--line-strong); max-width: 880px;
}
.hero-meta-item .label {
  font-size: 10px; letter-spacing: 0.24em; text-transform: uppercase;
  color: var(--ink-3); font-weight: 600; margin-bottom: 10px;
}
.hero-meta-item .value {
  font-size: 17px; color: var(--ink); font-weight: 500;
}
.hero-meta-item .value-sub {
  font-size: 12px; color: var(--ink-3); margin-top: 4px;
  font-family: var(--mono);
}

.hero-scroll {
  position: absolute; bottom: 36px; right: 60px; z-index: 2;
  display: flex; flex-direction: column; align-items: center; gap: 12px;
  color: var(--ink-3); font-size: 10px; letter-spacing: 0.24em;
  text-transform: uppercase; font-weight: 600;
}
.hero-scroll-line {
  width: 1px; height: 48px;
  background: linear-gradient(to bottom, var(--orange), transparent);
  animation: scrollLine 2.4s ease-in-out infinite;
}
@keyframes scrollLine {
  0% { transform: scaleY(0); transform-origin: top; }
  50% { transform: scaleY(1); transform-origin: top; }
  51% { transform: scaleY(1); transform-origin: bottom; }
  100% { transform: scaleY(0); transform-origin: bottom; }
}

/* ---------- section common ---------- */
section { padding: 120px 60px; position: relative; }
.container { max-width: 1320px; margin: 0 auto; }
.section-head { display: flex; align-items: flex-end; justify-content: space-between; margin-bottom: 64px; gap: 60px; }
.section-tag {
  display: inline-flex; align-items: center; gap: 10px;
  font-size: 11px; letter-spacing: 0.3em; text-transform: uppercase;
  color: var(--orange); font-weight: 600; margin-bottom: 18px;
}
.section-tag::before {
  content: ""; width: 28px; height: 1px; background: var(--orange);
}
.section-title {
  font-size: clamp(38px, 4.5vw, 64px);
  font-weight: 700; line-height: 1.05; letter-spacing: -0.025em;
  max-width: 720px;
}
.section-title .serif {
  font-family: var(--serif); font-style: italic; font-weight: 400;
  color: var(--orange-2);
}
.section-lead {
  font-size: 16px; line-height: 1.65; color: var(--ink-2);
  max-width: 380px; padding-bottom: 8px;
}

/* ---------- countdown / vision ---------- */
.vision {
  position: relative; padding: 140px 60px 120px;
  border-top: 1px solid var(--line);
  background:
    radial-gradient(ellipse at 70% 50%, rgba(243,115,33,0.08), transparent 60%),
    var(--bg);
}
.vision-grid {
  display: grid; grid-template-columns: 1.2fr 1fr; gap: 80px; align-items: center;
}
.vision-quote {
  font-size: clamp(32px, 4vw, 58px); font-weight: 700;
  line-height: 1.15; letter-spacing: -0.025em;
}
.vision-quote .mark {
  font-family: var(--serif); color: var(--orange);
  font-size: 1.4em; line-height: 0; vertical-align: -0.2em;
  margin-right: 8px;
}
.vision-quote-en {
  display: block; font-family: var(--serif); font-style: italic;
  font-weight: 400; color: var(--ink-2); font-size: 0.5em;
  margin-top: 28px; letter-spacing: -0.01em;
}
.countdown {
  background: var(--surface); border: 1px solid var(--line);
  padding: 36px 32px; border-radius: 4px;
  box-shadow: 0 40px 80px -30px rgba(0,0,0,0.5), 0 0 0 1px var(--line);
}
.countdown-label {
  display: flex; align-items: center; gap: 10px;
  font-size: 11px; letter-spacing: 0.24em; text-transform: uppercase;
  color: var(--ink-3); font-weight: 600; margin-bottom: 20px;
}
.countdown-label .live-dot {
  width: 6px; height: 6px; border-radius: 50%; background: var(--orange);
  box-shadow: 0 0 10px var(--orange); animation: pulse 2s infinite;
}
.countdown-row { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; }
.cd-cell {
  background: var(--bg); padding: 18px 8px; border-radius: 2px;
  text-align: center; border: 1px solid var(--line);
}
.cd-num {
  font-family: var(--mono); font-size: 38px; font-weight: 500;
  color: var(--ink); line-height: 1; letter-spacing: -0.02em;
  font-variant-numeric: tabular-nums;
}
.cd-unit {
  font-size: 10px; letter-spacing: 0.18em; text-transform: uppercase;
  color: var(--ink-3); margin-top: 10px;
}
.countdown-date {
  margin-top: 22px; padding-top: 18px; border-top: 1px solid var(--line);
  display: flex; justify-content: space-between; font-size: 12px;
  color: var(--ink-2); font-family: var(--mono);
}

/* ---------- overview ---------- */
.overview {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 0;
  border-top: 1px solid var(--line); border-bottom: 1px solid var(--line);
}
.overview-cell {
  padding: 56px 40px; position: relative;
  border-right: 1px solid var(--line);
  transition: background 0.3s;
}
.overview-cell:last-child { border-right: none; }
.overview-cell:hover { background: rgba(243,115,33,0.04); }
.overview-icon {
  width: 36px; height: 36px; margin-bottom: 28px;
  color: var(--orange);
}
.overview-label {
  font-size: 10px; letter-spacing: 0.24em; text-transform: uppercase;
  color: var(--ink-3); font-weight: 600; margin-bottom: 12px;
}
.overview-value {
  font-size: 24px; font-weight: 600; color: var(--ink); line-height: 1.3;
  letter-spacing: -0.01em;
}
.overview-sub { font-size: 13px; color: var(--ink-2); margin-top: 8px; line-height: 1.55; }

/* ---------- program ---------- */
.program { background: var(--bg-2); }
.program-toggle {
  display: inline-flex; padding: 4px; gap: 4px;
  background: var(--surface); border-radius: 2px;
  border: 1px solid var(--line); margin-bottom: 48px;
}
.program-toggle button {
  padding: 10px 22px; font-size: 13px; font-weight: 600;
  color: var(--ink-3); letter-spacing: 0.04em;
  transition: all 0.2s; border-radius: 2px;
}
.program-toggle button.active {
  background: var(--orange); color: #0a0908;
}
.timeline { display: flex; flex-direction: column; gap: 0; }
.timeline-block {
  display: grid; grid-template-columns: 160px 1fr 80px;
  gap: 40px; padding: 26px 0; align-items: center;
  border-top: 1px solid var(--line);
  position: relative; cursor: pointer;
  transition: padding-left 0.25s, background 0.25s;
}
.timeline-block:hover {
  padding-left: 16px; background: linear-gradient(to right, rgba(243,115,33,0.06), transparent 80%);
}
.timeline-block.section-header {
  border-top: 1px solid var(--orange);
  background: linear-gradient(to right, rgba(243,115,33,0.1), transparent 70%);
  padding: 20px 0; cursor: default;
}
.timeline-block.section-header:hover { padding-left: 0; }
.timeline-time {
  font-family: var(--mono); font-size: 13px; color: var(--ink-2);
  letter-spacing: 0.02em; font-weight: 500;
}
.timeline-block.section-header .timeline-time { color: var(--orange); font-weight: 600; }
.timeline-content { display: flex; flex-direction: column; gap: 4px; }
.timeline-title {
  font-size: 18px; font-weight: 600; color: var(--ink);
  letter-spacing: -0.01em;
}
.timeline-block.section-header .timeline-title { font-size: 14px; letter-spacing: 0.2em; text-transform: uppercase; color: var(--orange); }
.timeline-speaker {
  font-size: 13px; color: var(--ink-3); margin-top: 2px;
}
.timeline-duration {
  font-family: var(--mono); font-size: 12px;
  color: var(--ink-3); text-align: right;
}
.timeline-duration .num { color: var(--orange-2); }

/* ---------- speakers ---------- */
.speakers-grid {
  display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px;
  margin-top: 16px;
}
.speaker-card {
  background: var(--surface); border: 1px solid var(--line);
  padding: 40px 36px; border-radius: 4px; position: relative;
  overflow: hidden; transition: border-color 0.3s, transform 0.3s;
}
.speaker-card:hover { border-color: var(--orange); transform: translateY(-4px); }
.speaker-card::before {
  content: ""; position: absolute; top: 0; left: 0; width: 3px; height: 60px;
  background: var(--orange);
}
.speaker-meta {
  display: flex; gap: 12px; align-items: center;
  font-size: 11px; letter-spacing: 0.22em; text-transform: uppercase;
  color: var(--ink-3); font-weight: 600; margin-bottom: 24px;
}
.speaker-num {
  font-family: var(--mono); color: var(--orange); font-weight: 500;
}
.speaker-name {
  font-size: 32px; font-weight: 700; color: var(--ink);
  letter-spacing: -0.02em;
}
.speaker-role { font-size: 14px; color: var(--ink-2); margin-top: 6px; }
.speaker-topic {
  margin-top: 24px; padding-top: 22px; border-top: 1px solid var(--line);
  font-size: 16px; font-weight: 500; color: var(--ink);
  line-height: 1.45;
}
.speaker-topic .topic-label {
  display: block; font-size: 10px; letter-spacing: 0.24em;
  text-transform: uppercase; color: var(--ink-3);
  font-weight: 600; margin-bottom: 10px;
}
.speaker-bio {
  font-size: 13px; color: var(--ink-2); margin-top: 16px; line-height: 1.65;
}

/* ---------- history ---------- */
.history { background: var(--bg); }
.history-track {
  display: grid; grid-template-columns: repeat(5, 1fr); gap: 0;
  border-top: 1px solid var(--line); border-bottom: 1px solid var(--line);
}
.history-year {
  padding: 36px 24px; border-right: 1px solid var(--line);
  position: relative; min-height: 220px;
  transition: background 0.3s;
}
.history-year:last-child { border-right: none; }
.history-year.current {
  background: linear-gradient(180deg, rgba(243,115,33,0.16) 0%, rgba(243,115,33,0.04) 100%);
}
.history-year:hover { background: rgba(255,240,220,0.02); }
.history-year.current:hover {
  background: linear-gradient(180deg, rgba(243,115,33,0.22) 0%, rgba(243,115,33,0.06) 100%);
}
.hy-year {
  font-family: var(--mono); font-size: 12px; color: var(--ink-3);
  letter-spacing: 0.1em; margin-bottom: 14px;
}
.history-year.current .hy-year { color: var(--orange); }
.hy-number {
  font-family: var(--serif); font-size: 52px; font-weight: 400;
  font-style: italic; color: var(--ink); line-height: 1; margin-bottom: 18px;
  letter-spacing: -0.02em;
}
.history-year.current .hy-number { color: var(--orange); }
.hy-theme {
  font-size: 14px; font-weight: 600; color: var(--ink);
  letter-spacing: -0.01em; line-height: 1.35; margin-bottom: 8px;
}
.hy-desc { font-size: 12px; color: var(--ink-3); line-height: 1.55; }
.hy-tag {
  display: inline-block; margin-top: 12px; padding: 3px 8px;
  border: 1px solid var(--line-strong); border-radius: 2px;
  font-size: 10px; color: var(--ink-2); letter-spacing: 0.08em;
}
.history-year.current .hy-tag { border-color: var(--orange); color: var(--orange); }

/* ---------- location ---------- */
.location { background: var(--bg-2); }
.location-grid {
  display: grid; grid-template-columns: 1.1fr 1fr; gap: 60px;
}
.map-frame {
  background: var(--surface); border: 1px solid var(--line);
  border-radius: 4px; aspect-ratio: 4/3; position: relative;
  overflow: hidden;
}
.map-iframe {
  width: 100%; height: 100%; border: 0; display: block;
  filter: invert(0.92) hue-rotate(180deg) saturate(0.65) brightness(0.95);
}
.map-open-link {
  position: absolute; bottom: 14px; right: 14px;
  display: inline-flex; align-items: center; gap: 8px;
  padding: 9px 14px; background: var(--orange); color: #0a0908;
  border-radius: 2px; font-size: 11px; font-weight: 700;
  letter-spacing: 0.08em; transition: background 0.2s, transform 0.2s;
  box-shadow: 0 6px 18px rgba(0,0,0,0.4);
  z-index: 2;
}
.map-open-link:hover { background: var(--orange-2); transform: translateY(-1px); }
.location-info { display: flex; flex-direction: column; gap: 28px; }
.location-row {
  display: grid; grid-template-columns: 100px 1fr;
  gap: 24px; padding: 20px 0; border-bottom: 1px solid var(--line);
}
.location-row:last-child { border-bottom: none; }
.location-row-label {
  font-size: 10px; letter-spacing: 0.24em; text-transform: uppercase;
  color: var(--ink-3); font-weight: 600; padding-top: 4px;
}
.location-row-value { font-size: 15px; color: var(--ink); line-height: 1.55; }
.location-row-value .sub {
  display: block; font-size: 13px; color: var(--ink-3); margin-top: 4px;
  font-family: var(--mono);
}

/* ---------- RSVP CTA ---------- */
.rsvp {
  padding: 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line);
  background:
    radial-gradient(ellipse at 30% 50%, rgba(243,115,33,0.12), transparent 60%),
    var(--bg);
}
.rsvp-inner {
  padding: 120px 60px; max-width: 1320px; margin: 0 auto;
  display: grid; grid-template-columns: 1.2fr 1fr; gap: 80px; align-items: center;
}
.rsvp-eyebrow {
  display: inline-flex; align-items: center; gap: 10px;
  font-size: 11px; letter-spacing: 0.3em; text-transform: uppercase;
  color: var(--orange); font-weight: 600; margin-bottom: 24px;
}
.rsvp-title {
  font-size: clamp(40px, 5vw, 72px); font-weight: 700;
  letter-spacing: -0.03em; line-height: 1.05;
}
.rsvp-title .serif {
  font-family: var(--serif); font-style: italic; font-weight: 400;
  color: var(--orange-2);
}
.rsvp-desc {
  margin-top: 24px; font-size: 15px; color: var(--ink-2);
  line-height: 1.65; max-width: 520px;
}
.rsvp-deadline {
  margin-top: 32px; display: inline-flex; gap: 16px;
  padding: 14px 20px; background: rgba(243,115,33,0.08);
  border: 1px solid rgba(243,115,33,0.3); border-radius: 2px;
  font-size: 13px; color: var(--orange-2);
}
.rsvp-deadline .label { color: var(--ink-3); }
.rsvp-button-wrap { display: flex; flex-direction: column; gap: 16px; align-items: flex-start; }
.rsvp-button {
  display: inline-flex; align-items: center; justify-content: space-between;
  width: 100%; padding: 28px 32px;
  background: var(--orange); color: #0a0908;
  border-radius: 2px; font-size: 20px; font-weight: 700;
  letter-spacing: -0.01em; transition: background 0.2s, transform 0.2s;
  position: relative; overflow: hidden;
}
.rsvp-button:hover { background: var(--orange-2); transform: translateY(-2px); }
.rsvp-button-en {
  display: block; font-size: 11px; font-weight: 600; letter-spacing: 0.2em;
  text-transform: uppercase; opacity: 0.7; margin-top: 4px;
}
.rsvp-button-arrow {
  width: 32px; height: 32px; display: flex; align-items: center; justify-content: center;
  transition: transform 0.2s;
}
.rsvp-button:hover .rsvp-button-arrow { transform: translateX(6px); }
.rsvp-note { font-size: 12px; color: var(--ink-3); }

/* ---------- contact / footer ---------- */
.contact { background: var(--bg-2); }
.contact-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; }
.contact-card {
  padding: 36px 32px; border: 1px solid var(--line); border-right: none;
  border-radius: 0;
}
.contact-card:last-child { border-right: 1px solid var(--line); }
.contact-role {
  font-size: 10px; letter-spacing: 0.24em; text-transform: uppercase;
  color: var(--orange); font-weight: 600; margin-bottom: 16px;
}
.contact-name {
  font-size: 22px; font-weight: 700; color: var(--ink);
  letter-spacing: -0.01em;
}
.contact-team { font-size: 13px; color: var(--ink-3); margin-top: 4px; }
.contact-info-list {
  margin-top: 22px; padding-top: 18px; border-top: 1px solid var(--line);
  display: flex; flex-direction: column; gap: 10px;
}
.contact-info-row {
  display: flex; gap: 12px; align-items: center;
  font-size: 13px; color: var(--ink-2);
}
.contact-info-row svg { color: var(--ink-3); flex-shrink: 0; }
.contact-info-row a:hover { color: var(--orange-2); }

footer {
  padding: 50px 60px 40px; border-top: 1px solid var(--line);
  background: var(--bg);
}
.footer-grid {
  display: flex; justify-content: space-between; align-items: center;
  max-width: 1320px; margin: 0 auto; gap: 40px;
}
.footer-logo img { height: 28px; opacity: 0.85; }
.footer-text {
  font-size: 11px; color: var(--ink-3); letter-spacing: 0.04em;
  line-height: 1.7;
}
.footer-quality {
  font-size: 11px; letter-spacing: 0.24em; text-transform: uppercase;
  color: var(--orange); font-weight: 600;
}

/* ---------- responsive ---------- */
@media (max-width: 1100px) {
  .vision-grid, .location-grid, .rsvp-inner { grid-template-columns: 1fr; gap: 50px; }
  .overview, .contact-grid { grid-template-columns: 1fr; }
  .overview-cell, .contact-card { border-right: 1px solid var(--line); }
  .speakers-grid { grid-template-columns: 1fr; }
  .nav-links { display: none; }
  .timeline-block { grid-template-columns: 110px 1fr 60px; gap: 20px; }
  .nav { padding: 14px 24px; }
  .nav.scrolled { padding: 12px 24px; }
  .section-head { flex-direction: column; align-items: flex-start; gap: 28px; margin-bottom: 48px; }
  .section-lead { max-width: 100%; }
}

@media (max-width: 720px) {
  /* Reduce massive paddings */
  section { padding: 80px 24px; }
  .vision { padding: 90px 24px 80px; }
  .rsvp-inner { padding: 80px 24px; }
  footer { padding: 40px 24px 32px; }

  /* Nav */
  .nav { padding: 12px 18px; }
  .nav.scrolled { padding: 10px 18px; }
  .nav-logo img { height: 26px; }
  .nav-logo-divider { height: 18px; }
  .nav-logo-label { font-size: 10px; letter-spacing: 0.14em; }
  .nav-cta { padding: 8px 12px; font-size: 11px; }
  .nav-cta span:first-child { display: inline; }

  /* Hero */
  .hero { min-height: 600px; height: 100svh; }
  .hero-content { padding: 96px 24px 56px; justify-content: flex-end; }
  .hero-grid-overlay { background-size: 25% 100%; }
  .hero-eyebrow { font-size: 10px; letter-spacing: 0.22em; margin-bottom: 18px; gap: 8px; flex-wrap: wrap; }
  .hero-title { font-size: clamp(40px, 12vw, 64px); }
  .hero-subtitle { font-size: 14px; margin-top: 18px; }
  .hero-meta {
    display: grid; grid-template-columns: 1fr 1fr;
    gap: 20px 24px; margin-top: 36px; padding-top: 22px;
  }
  .hero-meta-item .label { font-size: 9px; letter-spacing: 0.18em; margin-bottom: 6px; }
  .hero-meta-item .value { font-size: 14px; }
  .hero-meta-item .value-sub { font-size: 11px; }
  .hero-scroll { display: none; }

  /* Vision */
  .vision-grid { gap: 36px; }
  .vision-quote { font-size: clamp(26px, 7vw, 36px); }
  .vision-quote-en { font-size: 0.55em; margin-top: 18px; }
  .countdown { padding: 24px 20px; }
  .countdown-row { gap: 6px; }
  .cd-cell { padding: 14px 4px; }
  .cd-num { font-size: 28px; }
  .cd-unit { font-size: 9px; letter-spacing: 0.12em; margin-top: 8px; }
  .countdown-date { flex-direction: column; gap: 4px; align-items: flex-start; font-size: 11px; }

  /* Overview */
  .overview-cell { padding: 36px 24px; }
  .overview-icon { width: 28px; height: 28px; margin-bottom: 18px; }
  .overview-value { font-size: 19px; }

  /* Section heads */
  .section-title { font-size: clamp(28px, 8vw, 40px); }
  .section-head { margin-bottom: 36px; gap: 20px; }
  .section-tag { font-size: 10px; letter-spacing: 0.24em; margin-bottom: 14px; }

  /* Program */
  .program-toggle { margin-bottom: 28px; width: 100%; }
  .program-toggle button { flex: 1; padding: 12px 0; font-size: 12px; }
  .timeline-block {
    grid-template-columns: 64px 1fr;
    grid-template-areas: "time content" "time duration";
    gap: 4px 16px; padding: 20px 0; align-items: flex-start;
  }
  .timeline-block:hover { padding-left: 8px; }
  .timeline-block.section-header { grid-template-columns: 1fr auto; grid-template-areas: "time duration" "content content"; padding: 16px 0; gap: 8px 12px; }
  .timeline-block.section-header .timeline-title { font-size: 11px; }
  .timeline-time { grid-area: time; font-size: 12px; padding-top: 2px; }
  .timeline-content { grid-area: content; }
  .timeline-title { font-size: 15px; line-height: 1.35; }
  .timeline-title span { display: inline-block; margin-top: 4px; margin-left: 0 !important; }
  .timeline-speaker { font-size: 12px; line-height: 1.45; }
  .timeline-duration { grid-area: duration; text-align: left; font-size: 11px; }

  /* Speakers */
  .speaker-card { padding: 28px 22px; }
  .speaker-name { font-size: 26px; }
  .speaker-name span { display: block; margin-top: 4px; font-size: 14px; }
  .speaker-meta { font-size: 10px; letter-spacing: 0.16em; gap: 8px; margin-bottom: 18px; flex-wrap: wrap; }
  .speaker-topic { font-size: 14px; margin-top: 18px; padding-top: 18px; }
  .speaker-bio { font-size: 12px; line-height: 1.6; }

  /* Location */
  .location-grid { gap: 32px; }
  .map-frame { aspect-ratio: 4/3.4; }
  .location-row { grid-template-columns: 80px 1fr; gap: 14px; padding: 16px 0; }
  .location-row-label { font-size: 9px; letter-spacing: 0.18em; }
  .location-row-value { font-size: 13px; }
  .location-row-value .sub { font-size: 11px; }
  .map-open-link { font-size: 10px; padding: 7px 10px; bottom: 10px; right: 10px; }

  /* RSVP */
  .rsvp-inner { gap: 36px; }
  .rsvp-title { font-size: clamp(32px, 9vw, 44px); }
  .rsvp-desc { font-size: 14px; margin-top: 18px; }
  .rsvp-deadline { font-size: 12px; padding: 12px 14px; flex-wrap: wrap; gap: 6px; margin-top: 24px; }
  .rsvp-button { padding: 22px 22px; font-size: 17px; }
  .rsvp-button-en { font-size: 10px; letter-spacing: 0.16em; }
  .rsvp-button-arrow { width: 24px; height: 24px; }
  .rsvp-button-arrow svg { width: 22px; height: 22px; }

  /* Contact */
  .contact-card { padding: 28px 22px; }
  .contact-name { font-size: 19px; }
  .contact-info-row { font-size: 12px; }

  /* Footer */
  .footer-grid { flex-direction: column; align-items: flex-start; gap: 20px; text-align: left; }
  .footer-text { font-size: 11px; }
  .footer-quality { font-size: 10px; letter-spacing: 0.2em; }
}

@media (max-width: 420px) {
  .nav-logo-label { display: none; }
  .nav-logo-divider { display: none; }
  .hero-meta { grid-template-columns: 1fr; gap: 16px; }
  .cd-num { font-size: 24px; }
}