/* ======================================================
   新媒體藝術 × 淨零未來｜Art Sustainability Forum 2026
   Theme: Clean white + Art accent (Sage green / Sunset / Ink)
   ====================================================== */

:root {
  --c-bg: #fafaf7;
  --c-bg-alt: #f2f2ec;
  --c-ink: #111111;
  --c-ink-soft: #2a2a2a;
  --c-muted: #6f6f6a;
  --c-line: #e4e4dd;
  --c-accent: #4f7a4a;        /* sage green */
  --c-accent-dark: #2e5a2b;
  --c-accent-glow: #a9d89a;
  --c-sunset: #e76a3d;        /* art pop */
  --c-sunset-soft: #f3a779;
  --c-sand: #dfc9a3;

  --font-zh: 'Noto Sans TC', 'PingFang TC', 'Microsoft JhengHei', sans-serif;
  --font-serif: 'Noto Serif TC', 'Source Han Serif TC', serif;
  --font-en: 'Space Grotesk', 'Inter', sans-serif;

  --container: 1200px;
  --radius: 14px;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

/* =============== Reset =============== */
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: auto; }
body {
  font-family: var(--font-zh);
  color: var(--c-ink);
  background: var(--c-bg);
  line-height: 1.7;
  letter-spacing: 0.02em;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  cursor: none;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; transition: all 0.3s var(--ease); }
button { font: inherit; border: none; background: none; cursor: pointer; }
ul { list-style: none; }

/* =============== Custom Cursor =============== */
.cursor-dot, .cursor-ring {
  position: fixed;
  pointer-events: none;
  z-index: 9999;
  transform: translate(-50%, -50%);
  mix-blend-mode: difference;
}
.cursor-dot {
  width: 6px; height: 6px;
  background: #fff;
  border-radius: 50%;
  transition: transform 0.15s var(--ease);
}
.cursor-ring {
  width: 38px; height: 38px;
  border: 1px solid #fff;
  border-radius: 50%;
  transition: transform 0.25s var(--ease), width 0.25s var(--ease), height 0.25s var(--ease);
}
.cursor-ring.hover {
  width: 68px; height: 68px;
  background: rgba(255,255,255,0.08);
}
@media (max-width: 768px), (hover: none) {
  .cursor-dot, .cursor-ring { display: none; }
  body { cursor: auto; }
}

/* =============== Scroll Progress =============== */
.scroll-progress {
  position: fixed;
  top: 0; left: 0;
  width: 0%;
  height: 2px;
  background: linear-gradient(90deg, var(--c-accent), var(--c-sunset));
  z-index: 1000;
  transition: width 0.1s linear;
}

/* =============== Navigation =============== */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  padding: 18px 0;
  transition: all 0.4s var(--ease);
  background: transparent;
}
.nav.scrolled {
  background: rgba(250, 250, 247, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  padding: 12px 0;
  border-bottom: 1px solid var(--c-line);
}
.nav-inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 16px;
  color: var(--c-ink);
}
.logo-mark {
  color: var(--c-accent);
  font-size: 22px;
  animation: spin 10s linear infinite;
  display: inline-block;
}
.nav.hero-mode .nav-logo,
.nav.hero-mode .nav-link { color: var(--c-ink); }
.nav.hero-mode .logo-mark { color: var(--c-accent); }

@keyframes spin { to { transform: rotate(360deg); } }

.nav-links {
  display: flex;
  gap: 36px;
}
.nav-link {
  font-size: 14px;
  font-weight: 500;
  position: relative;
  color: var(--c-ink);
}
.nav-link::after {
  content: '';
  position: absolute;
  left: 0; bottom: -6px;
  width: 0;
  height: 1px;
  background: var(--c-accent);
  transition: width 0.3s var(--ease);
}
.nav-link:hover::after { width: 100%; }

.nav-toggle { display: none; }

@media (max-width: 900px) {
  .nav-links { display: none; }
  .nav-cta { padding: 8px 16px; font-size: 13px; }
}

/* =============== Buttons =============== */
.btn-cta {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 28px;
  background: var(--c-ink);
  color: #fff;
  font-weight: 600;
  font-size: 15px;
  border-radius: 999px;
  transition: all 0.3s var(--ease);
  position: relative;
  overflow: hidden;
}
.btn-cta::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, var(--c-accent), var(--c-sunset));
  transform: translateX(-101%);
  transition: transform 0.45s var(--ease);
}
.btn-cta > * { position: relative; z-index: 1; }
.btn-cta:hover::before { transform: translateX(0); }
.btn-cta:hover { transform: translateY(-2px); box-shadow: 0 16px 32px rgba(0,0,0,0.18); }
.btn-cta .arrow { transition: transform 0.3s var(--ease); }
.btn-cta:hover .arrow { transform: translateX(4px); }

.btn-cta.large {
  padding: 20px 44px;
  font-size: 18px;
}

.btn-ghost {
  display: inline-flex;
  align-items: center;
  padding: 14px 28px;
  border: 1px solid rgba(255,255,255,0.4);
  color: #fff;
  font-weight: 500;
  font-size: 15px;
  border-radius: 999px;
  transition: all 0.3s var(--ease);
}
.btn-ghost:hover {
  background: rgba(255,255,255,0.1);
  border-color: #fff;
}

/* =============== Hero (banner video) =============== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  background:
    radial-gradient(ellipse at 30% 20%, #eef4ea 0%, transparent 55%),
    radial-gradient(ellipse at 80% 80%, #e6eef1 0%, transparent 55%),
    linear-gradient(180deg, #fafaf7 0%, #f2f2ec 100%);
  color: var(--c-ink);
}

/* Ambient glow ring behind the sphere (left side of banner on desktop) */
.hero-glow {
  position: absolute;
  top: 50%; left: 28%;
  width: clamp(360px, 44vw, 720px);
  height: clamp(360px, 44vw, 720px);
  margin-left: calc(clamp(360px, 44vw, 720px) / -2);
  margin-top: calc(clamp(360px, 44vw, 720px) / -2);
  background:
    radial-gradient(circle at center,
      rgba(169, 216, 154, 0.45) 0%,
      rgba(100, 180, 200, 0.25) 30%,
      transparent 65%);
  filter: blur(30px);
  z-index: 0;
  animation: glowPulse 6s ease-in-out infinite;
  pointer-events: none;
}
@keyframes glowPulse {
  0%, 100% { opacity: 0.7; transform: scale(1); }
  50%      { opacity: 1; transform: scale(1.08); }
}

/* Banner video wrapper — size controlled by --wrap-w / --wrap-h so single video fits both layouts */
.hero-video-wrap {
  /* Desktop default: 2:1 widescreen banner */
  --wrap-w: clamp(760px, 92vw, 1600px);
  --wrap-h: calc(var(--wrap-w) / 2);
  position: absolute;
  top: 50%;
  left: 50%;
  width: var(--wrap-w);
  height: var(--wrap-h);
  margin-left: calc(var(--wrap-w) / -2);
  margin-top: calc(var(--wrap-h) / -2);
  z-index: 1;
  pointer-events: none;
  will-change: transform;
}
.hero-video {
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: block;
  /* multiply removes the white background so video blends with light bg */
  mix-blend-mode: multiply;
  opacity: 0;
  transition: opacity 1.2s ease-out;
  background: transparent;
}
.hero-video.loaded { opacity: 1; }

.hero-content {
  position: absolute;
  inset: 0;
  z-index: 4;
  padding: 100px 32px 48px;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: space-between;
  pointer-events: none;
}
.hero-top,
.hero-bottom {
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 28px;
  pointer-events: none;
}
.hero-content > * > * { pointer-events: auto; }
.hero-top { margin-top: 0; }

.hero-date {
  font-family: var(--font-en);
  font-size: 13px;
  letter-spacing: 0.4em;
  color: var(--c-accent-dark);
  display: inline-flex;
  align-items: center;
  gap: 16px;
  font-weight: 600;
}
.date-line {
  display: inline-block;
  width: 48px;
  height: 1px;
  background: var(--c-accent);
}

.hero-title {
  font-family: var(--font-serif);
  font-weight: 900;
  font-size: clamp(48px, 9vw, 140px);
  line-height: 1.05;
  letter-spacing: -0.02em;
  margin-bottom: 30px;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 20px 30px;
  align-items: center;
}
.title-zh {
  display: inline-block;
}
.title-zh .char {
  display: inline-block;
  opacity: 0;
  transform: translateY(60px) rotate(10deg);
}
.title-x {
  font-family: var(--font-en);
  font-size: 0.9em;
  color: var(--c-sunset);
  font-weight: 300;
  display: inline-block;
  opacity: 0;
  transform: scale(0.5) rotate(-180deg);
}

.hero-sub {
  font-size: clamp(18px, 2.2vw, 28px);
  font-weight: 400;
  letter-spacing: 0.3em;
  color: var(--c-accent-glow);
  margin-bottom: 16px;
}
.hero-subtitle {
  font-size: clamp(14px, 1.3vw, 17px);
  color: rgba(255,255,255,0.8);
  line-height: 1.9;
  margin-bottom: 56px;
}

.hero-meta {
  display: flex;
  justify-content: center;
  gap: 56px;
  margin-bottom: 28px;
  flex-wrap: wrap;
}
.meta-item {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.meta-label {
  font-family: var(--font-en);
  font-size: 11px;
  letter-spacing: 0.3em;
  color: var(--c-accent);
  font-weight: 600;
}
.meta-value {
  font-size: 15px;
  color: var(--c-ink);
  font-weight: 600;
}

.hero-actions {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}
.hero .btn-cta {
  background: var(--c-ink);
  color: #fff;
}
.hero .btn-cta::before {
  background: linear-gradient(90deg, var(--c-accent), var(--c-sunset));
}
.hero .btn-ghost {
  border: 1px solid var(--c-ink);
  color: var(--c-ink);
}
.hero .btn-ghost:hover {
  background: var(--c-ink);
  color: #fff;
}

.hero-scroll-hint {
  position: absolute;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 5;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  color: var(--c-accent-dark);
  font-family: var(--font-en);
  font-size: 11px;
  letter-spacing: 0.3em;
  font-weight: 600;
}
.scroll-line {
  width: 1px;
  height: 48px;
  background: linear-gradient(to bottom, var(--c-accent), transparent);
  animation: scroll-pulse 2s ease-in-out infinite;
}
@keyframes scroll-pulse {
  0%, 100% { opacity: 0.3; transform: scaleY(1); transform-origin: top; }
  50% { opacity: 1; transform: scaleY(1.3); }
}

/* =============== Reveal animations (GSAP targets) =============== */
.reveal-up { opacity: 0; transform: translateY(40px); }
.split-chars .char { display: inline-block; }

/* =============== Section =============== */
.section {
  padding: 140px 0;
  position: relative;
}
.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 32px;
}

.section-head {
  margin-bottom: 80px;
  max-width: 900px;
}
.section-number {
  font-family: var(--font-en);
  font-size: 13px;
  letter-spacing: 0.3em;
  color: var(--c-accent);
  display: block;
  margin-bottom: 16px;
}
.section-title {
  font-family: var(--font-serif);
  font-size: clamp(36px, 5vw, 64px);
  font-weight: 900;
  line-height: 1.15;
  letter-spacing: -0.01em;
  margin-bottom: 20px;
  color: var(--c-ink);
}
.section-desc {
  font-size: 17px;
  color: var(--c-muted);
  max-width: 640px;
  line-height: 1.9;
}

/* =============== About =============== */
.about { background: var(--c-bg); }
.about-grid {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 80px;
  margin-bottom: 100px;
}
.about-text .lead {
  font-family: var(--font-serif);
  font-size: 24px;
  line-height: 1.7;
  color: var(--c-ink);
  margin-bottom: 24px;
  font-weight: 700;
}
.about-text p {
  color: var(--c-ink-soft);
  margin-bottom: 20px;
  font-size: 16px;
}
.about-text strong {
  color: var(--c-accent);
  font-weight: 700;
}

.about-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  align-self: center;
}
.stat-card {
  padding: 36px 28px;
  background: #fff;
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  transition: all 0.4s var(--ease);
}
.stat-card:hover {
  transform: translateY(-6px);
  border-color: var(--c-accent);
  box-shadow: 0 20px 40px -20px rgba(79,122,74,0.3);
}
.stat-number {
  font-family: var(--font-en);
  font-size: 52px;
  font-weight: 700;
  color: var(--c-accent);
  line-height: 1;
  margin-bottom: 14px;
  letter-spacing: -0.02em;
}
.stat-unit {
  font-size: 28px;
  margin-left: 4px;
  color: var(--c-ink-soft);
}
.stat-label {
  font-size: 13px;
  color: var(--c-muted);
  line-height: 1.5;
}

.partners {
  padding-top: 60px;
  border-top: 1px solid var(--c-line);
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.partner-row {
  display: flex;
  gap: 32px;
  align-items: baseline;
}
.partner-label {
  font-family: var(--font-en);
  font-size: 12px;
  letter-spacing: 0.3em;
  color: var(--c-accent);
  min-width: 80px;
  font-weight: 600;
}
.partner-names {
  color: var(--c-ink-soft);
  font-size: 15px;
}

@media (max-width: 900px) {
  .about-grid { grid-template-columns: 1fr; gap: 48px; }
  .partner-row { flex-direction: column; gap: 6px; }
}

/* =============== Sessions =============== */
.sessions { background: var(--c-bg-alt); }
.session-list {
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.session-card {
  display: grid;
  grid-template-columns: 180px 1fr 60px;
  gap: 40px;
  padding: 48px 48px;
  background: #fff;
  border-radius: var(--radius);
  border: 1px solid var(--c-line);
  align-items: center;
  transition: all 0.5s var(--ease);
  position: relative;
  overflow: hidden;
}
.session-card::before {
  content: '';
  position: absolute;
  left: 0; top: 0;
  width: 4px;
  height: 0;
  background: linear-gradient(to bottom, var(--c-accent), var(--c-sunset));
  transition: height 0.4s var(--ease);
}
.session-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 24px 48px -16px rgba(0,0,0,0.15);
  border-color: transparent;
}
.session-card:hover::before { height: 100%; }

.session-num {
  font-family: var(--font-en);
  font-size: 13px;
  letter-spacing: 0.3em;
  color: var(--c-accent);
  font-weight: 600;
}
.session-time {
  font-family: var(--font-en);
  font-size: 14px;
  color: var(--c-muted);
  margin-bottom: 10px;
  letter-spacing: 0.1em;
}
.session-title {
  font-family: var(--font-serif);
  font-size: 28px;
  font-weight: 900;
  line-height: 1.35;
  margin-bottom: 16px;
  color: var(--c-ink);
}
.session-desc {
  color: var(--c-ink-soft);
  margin-bottom: 20px;
  font-size: 15px;
}
.session-speakers {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}
.chip {
  padding: 6px 14px;
  background: var(--c-bg-alt);
  border-radius: 999px;
  font-size: 13px;
  color: var(--c-ink-soft);
  font-weight: 500;
  transition: all 0.3s var(--ease);
}
.session-card:hover .chip {
  background: var(--c-accent);
  color: #fff;
}
.session-arrow {
  font-size: 32px;
  color: var(--c-muted);
  transition: all 0.3s var(--ease);
}
.session-card:hover .session-arrow {
  color: var(--c-accent);
  transform: translateX(8px);
}

@media (max-width: 768px) {
  .session-card {
    grid-template-columns: 1fr;
    gap: 16px;
    padding: 32px 24px;
  }
  .session-arrow { display: none; }
}

/* =============== Speakers =============== */
.speakers { background: var(--c-bg); }
.speaker-group { margin-bottom: 80px; }
.group-title {
  display: flex;
  align-items: center;
  gap: 16px;
  font-size: 16px;
  font-weight: 700;
  color: var(--c-ink);
  margin-bottom: 40px;
}
.group-title .line {
  display: inline-block;
  width: 40px;
  height: 2px;
  background: var(--c-accent);
}

.speaker-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}
.speaker-list.host {
  grid-template-columns: 1fr;
  max-width: 720px;
}

.speaker-card {
  background: #fff;
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  overflow: hidden;
  transition: all 0.5s var(--ease);
  display: flex;
  flex-direction: column;
}
.speaker-list.host .speaker-card {
  flex-direction: row;
  align-items: stretch;
}
.speaker-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 30px 60px -20px rgba(0,0,0,0.2);
  border-color: var(--c-accent);
}

.speaker-img {
  aspect-ratio: 4 / 5;
  overflow: hidden;
  background: var(--c-bg-alt);
  position: relative;
}
.speaker-list.host .speaker-img {
  flex: 0 0 40%;
  aspect-ratio: 1 / 1;
}
.speaker-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.8s var(--ease);
  filter: saturate(0.9);
}
.speaker-card:hover .speaker-img img {
  transform: scale(1.06);
  filter: saturate(1.1);
}
.speaker-img.placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--c-accent-glow), var(--c-sand));
}
.speaker-img.placeholder .initial {
  font-family: var(--font-serif);
  font-size: 100px;
  font-weight: 900;
  color: #fff;
  opacity: 0.9;
}

.speaker-info {
  padding: 28px;
  flex: 1;
}
.speaker-name {
  font-family: var(--font-serif);
  font-size: 24px;
  font-weight: 900;
  color: var(--c-ink);
  margin-bottom: 8px;
}
.speaker-role {
  font-size: 13px;
  color: var(--c-accent);
  font-weight: 600;
  line-height: 1.6;
  margin-bottom: 14px;
}
.speaker-bio {
  font-size: 14px;
  color: var(--c-muted);
  line-height: 1.8;
}

@media (max-width: 900px) {
  .speaker-list { grid-template-columns: repeat(2, 1fr); }
  .speaker-list.host .speaker-card { flex-direction: column; }
  .speaker-list.host .speaker-img { flex: none; aspect-ratio: 4/5; }
}
@media (max-width: 600px) {
  .speaker-list { grid-template-columns: 1fr; }
}

/* =============== Agenda / Timeline =============== */
.agenda { background: var(--c-bg-alt); }
.timeline {
  position: relative;
  max-width: 900px;
  margin: 0 auto;
  padding-left: 40px;
}
.timeline::before {
  content: '';
  position: absolute;
  left: 0;
  top: 16px;
  bottom: 16px;
  width: 2px;
  background: linear-gradient(to bottom, var(--c-accent), var(--c-sunset));
  opacity: 0.3;
}
.timeline-item {
  position: relative;
  padding: 24px 0 24px 48px;
  display: grid;
  grid-template-columns: 180px 1fr;
  gap: 32px;
  align-items: start;
}
.tl-time {
  font-family: var(--font-en);
  font-size: 14px;
  font-weight: 600;
  color: var(--c-muted);
  letter-spacing: 0.05em;
  padding-top: 2px;
}
.tl-dot {
  position: absolute;
  left: -48px;
  top: 30px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--c-bg-alt);
  border: 2px solid var(--c-accent);
  transition: all 0.3s var(--ease);
}
.timeline-item.highlight .tl-dot {
  background: var(--c-accent);
  box-shadow: 0 0 0 6px rgba(79,122,74,0.2);
}
.tl-content h4 {
  font-family: var(--font-serif);
  font-size: 20px;
  font-weight: 700;
  color: var(--c-ink);
  margin-bottom: 8px;
}
.timeline-item.highlight .tl-content h4 { font-size: 24px; }
.tl-tag {
  display: inline-block;
  font-family: var(--font-en);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.2em;
  color: var(--c-sunset);
  background: rgba(231,106,61,0.1);
  padding: 4px 10px;
  border-radius: 4px;
  margin-bottom: 10px;
}
.tl-meta {
  font-size: 14px;
  color: var(--c-ink-soft);
  margin-bottom: 6px;
}
.tl-note {
  font-size: 13px;
  color: var(--c-muted);
  line-height: 1.7;
}
.tl-sub {
  color: var(--c-muted);
  font-size: 14px;
  font-weight: 400;
}

@media (max-width: 768px) {
  .timeline-item {
    grid-template-columns: 1fr;
    gap: 8px;
  }
}

/* =============== Info =============== */
.info { background: var(--c-bg); }
.info-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-bottom: 60px;
}
.info-card {
  padding: 36px 28px;
  background: #fff;
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  transition: all 0.4s var(--ease);
}
.info-card:hover {
  transform: translateY(-6px);
  border-color: var(--c-accent);
}
.info-ico {
  font-size: 32px;
  margin-bottom: 16px;
}
.info-card h4 {
  font-family: var(--font-serif);
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--c-ink);
}
.info-card p {
  font-size: 14px;
  color: var(--c-muted);
  line-height: 1.8;
}

.map-wrap {
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--c-line);
}

@media (max-width: 900px) {
  .info-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 500px) {
  .info-grid { grid-template-columns: 1fr; }
}

/* =============== CTA Section =============== */
.cta-section {
  background: var(--c-ink);
  color: #fff;
  padding: 120px 0;
}
.cta-inner {
  text-align: center;
  max-width: 820px;
  margin: 0 auto;
}
.cta-title {
  font-family: var(--font-serif);
  font-size: clamp(32px, 5vw, 56px);
  font-weight: 900;
  line-height: 1.25;
  margin-bottom: 20px;
  background: linear-gradient(90deg, #fff, var(--c-accent-glow), var(--c-sunset-soft));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.cta-desc {
  font-size: 16px;
  color: rgba(255,255,255,0.7);
  margin-bottom: 44px;
  letter-spacing: 0.2em;
}
.cta-section .btn-cta {
  background: #fff;
  color: var(--c-ink);
}
.cta-section .btn-cta::before {
  background: linear-gradient(90deg, var(--c-accent-glow), var(--c-sunset-soft));
}

/* =============== News =============== */
.news { background: var(--c-bg); }
.news-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}
.news-card {
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--c-line);
  transition: all 0.4s var(--ease);
  cursor: pointer;
  /* button reset */
  padding: 0;
  background: transparent;
  font: inherit;
  color: inherit;
  display: block;
  width: 100%;
  text-align: left;
}
.news-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 24px 48px -20px rgba(0,0,0,0.2);
}
.news-card:focus-visible {
  outline: 2px solid var(--c-accent);
  outline-offset: 4px;
}
.news-card img {
  width: 100%;
  display: block;
  transition: transform 0.6s var(--ease);
}
.news-card:hover img {
  transform: scale(1.03);
}

@media (max-width: 700px) {
  .news-grid { grid-template-columns: 1fr; }
}

/* =============== Lightbox =============== */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 9999;
  background: rgba(10, 14, 12, 0.82);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 40px;
  opacity: 0;
  transition: opacity 0.28s var(--ease);
  cursor: zoom-out;
}
.lightbox[hidden] { display: none; }
.lightbox.is-open { opacity: 1; }
.lightbox-img {
  max-width: min(92vw, 1400px);
  max-height: 88vh;
  object-fit: contain;
  border-radius: 6px;
  box-shadow: 0 40px 120px rgba(0,0,0,0.55);
  transform: scale(0.94);
  transition: transform 0.32s var(--ease);
  cursor: default;
}
.lightbox.is-open .lightbox-img { transform: scale(1); }
.lightbox-close {
  position: fixed;
  top: 24px;
  right: 28px;
  width: 48px;
  height: 48px;
  border: 1px solid rgba(255,255,255,0.35);
  background: rgba(255,255,255,0.08);
  color: #fff;
  font-size: 28px;
  line-height: 1;
  border-radius: 999px;
  cursor: pointer;
  transition: all 0.25s var(--ease);
  z-index: 1;
}
.lightbox-close:hover {
  background: rgba(255,255,255,0.2);
  transform: rotate(90deg);
}
body.lightbox-open { overflow: hidden; }

@media (max-width: 700px) {
  .lightbox { padding: 16px; }
  .lightbox-close { top: 14px; right: 14px; width: 40px; height: 40px; font-size: 24px; }
  .lightbox-img { max-width: 96vw; max-height: 80vh; }
}

/* =============== Footer =============== */
.footer {
  background: var(--c-ink);
  color: rgba(255,255,255,0.7);
  padding: 80px 0 40px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}
.foot-logo {
  font-size: 18px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 12px;
}
.footer-brand p { font-size: 14px; color: rgba(255,255,255,0.5); }

.footer-col h5 {
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--c-accent-glow);
  margin-bottom: 14px;
  font-weight: 600;
}
.footer-col p {
  font-size: 14px;
  line-height: 1.8;
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 32px;
  font-size: 13px;
  color: rgba(255,255,255,0.5);
  flex-wrap: wrap;
  gap: 16px;
}
.footer-bottom a { color: var(--c-accent-glow); }
.footer-bottom a:hover { color: #fff; }

@media (max-width: 800px) {
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
}

/* =============== Section padding mobile =============== */
@media (max-width: 768px) {
  .section { padding: 80px 0; }
  .section-head { margin-bottom: 48px; }
  .container { padding: 0 24px; }
  .hero-meta { gap: 24px; }
  /* Mobile: portrait 5:7 aspect (sphere on top, text on bottom) */
  .hero-video-wrap {
    --wrap-w: 82vw;
    --wrap-h: calc(var(--wrap-w) * 7 / 5);
  }
  .hero-glow {
    top: 38%; left: 50%;
    width: 72vw; height: 72vw;
    margin-left: -36vw; margin-top: -36vw;
  }
  .hero-content { padding: 90px 20px 32px; }
}

/* =============== Reduced motion =============== */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  .hero-video { display: none; }
  .hero-glow { animation: none; }
}