/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body, h1, h2, h3, p, dl, dd, ul, figure { margin: 0; }
ul { padding: 0; list-style: none; }
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; }

/* ---------- Tokens ---------- */
:root {
  --bg: #0a0d18;
  --bg-alt: #0f1326;
  --surface: #141830;
  --surface-2: #1b2040;
  --border: #2a2f52;
  --text: #eef0fb;
  --text-dim: #a8adcf;
  --text-faint: #6d7299;
  --accent: #7dd8ff;
  --accent-2: #b48bff;
  --gradient: linear-gradient(120deg, var(--accent), var(--accent-2));
  --font-head: 'Space Grotesk', system-ui, sans-serif;
  --font-body: 'Sora', system-ui, sans-serif;
  --radius: 16px;
  --header-h: 76px;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-weight: 300;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.wrap {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 24px;
}

.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--surface);
  color: var(--text);
  padding: 12px 20px;
  z-index: 1000;
}
.skip-link:focus { left: 12px; top: 12px; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 13px 26px;
  border-radius: 999px;
  font-family: var(--font-head);
  font-weight: 600;
  font-size: 0.95rem;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease, color 0.15s ease;
  border: 1px solid transparent;
  white-space: nowrap;
}
.btn-primary {
  background: var(--gradient);
  color: #0a0d18;
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 10px 30px -10px rgba(125, 216, 255, 0.5); }
.btn-outline {
  border-color: var(--border);
  color: var(--text);
}
.btn-outline:hover { border-color: var(--accent); color: var(--accent); }
.btn-ghost {
  color: var(--text-dim);
  font-size: 0.9rem;
  padding: 10px 18px;
}
.btn-ghost:hover { color: var(--accent); }

/* ---------- Header ---------- */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--header-h);
  z-index: 100;
  background: rgba(10, 13, 24, 0.75);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
}
.header-inner {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-head);
  font-weight: 600;
  font-size: 1.15rem;
  color: var(--text);
}
.logo-mark { color: var(--accent); display: inline-flex; }
.logo-text em { font-style: normal; color: var(--accent); }

.main-nav {
  display: flex;
  gap: 32px;
}
.main-nav a {
  font-size: 0.92rem;
  color: var(--text-dim);
  transition: color 0.15s ease;
}
.main-nav a:hover { color: var(--text); }

.header-actions { display: flex; align-items: center; gap: 8px; }

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  background: none;
  border: none;
}
.nav-toggle span {
  display: block;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: transform 0.2s ease, opacity 0.2s ease;
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  min-height: 92vh;
  display: flex;
  align-items: center;
  padding-top: var(--header-h);
  overflow: hidden;
  background:
    radial-gradient(60% 50% at 80% 10%, rgba(180, 139, 255, 0.18), transparent 60%),
    radial-gradient(50% 40% at 10% 90%, rgba(125, 216, 255, 0.14), transparent 60%),
    var(--bg);
}
.hero-field { position: absolute; inset: 0; pointer-events: none; }
.orbit {
  position: absolute;
  border: 1px solid rgba(125, 216, 255, 0.18);
  border-radius: 50%;
}
.orbit-1 { width: 520px; height: 520px; top: -120px; right: -140px; animation: spin 60s linear infinite; }
.orbit-2 { width: 340px; height: 340px; top: 30px; right: 10px; border-color: rgba(180, 139, 255, 0.2); animation: spin 40s linear infinite reverse; }
@keyframes spin { to { transform: rotate(360deg); } }

.card-ghost {
  position: absolute;
  width: 72px;
  height: 100px;
  border-radius: 8px;
  border: 1px solid rgba(238, 240, 251, 0.12);
  background: linear-gradient(160deg, rgba(125,216,255,0.08), rgba(180,139,255,0.06));
  animation: float 7s ease-in-out infinite;
}
.card-ghost-1 { top: 22%; right: 18%; animation-delay: 0s; }
.card-ghost-2 { top: 55%; right: 30%; transform: rotate(-12deg); animation-delay: 1.4s; }
.card-ghost-3 { top: 38%; right: 6%; transform: rotate(10deg); animation-delay: 2.8s; }
@keyframes float { 0%, 100% { transform: translateY(0) rotate(var(--r, 0)); } 50% { transform: translateY(-16px); } }

.hero-inner { position: relative; max-width: 720px; }
.eyebrow {
  font-family: var(--font-head);
  font-size: 0.82rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 18px;
}
.eyebrow.center, .section-sub.center { text-align: center; }

h1 {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: clamp(2.3rem, 5vw, 3.6rem);
  line-height: 1.08;
  letter-spacing: -0.01em;
  margin-bottom: 22px;
}

.hero-sub {
  font-size: 1.08rem;
  color: var(--text-dim);
  max-width: 560px;
  margin-bottom: 34px;
}

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

/* ---------- Sections ---------- */
.section { padding: 110px 0; }
.section-alt { background: var(--bg-alt); }

h2 {
  font-family: var(--font-head);
  font-weight: 600;
  font-size: clamp(1.7rem, 3.4vw, 2.4rem);
  line-height: 1.2;
  margin-bottom: 20px;
}
.center { text-align: center; margin-left: auto; margin-right: auto; }
.section-sub {
  color: var(--text-dim);
  max-width: 560px;
  margin: 0 auto 56px;
  font-size: 1.05rem;
}

.story-grid, .visit-grid, .contact-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 64px;
  align-items: center;
}
.story-copy p, .visit-copy p { color: var(--text-dim); margin-bottom: 18px; }

/* Story visual: quantum box art */
.box-art {
  position: relative;
  height: 340px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: linear-gradient(160deg, var(--surface), var(--surface-2));
  overflow: hidden;
}
.box-glow {
  position: absolute;
  inset: -40%;
  background: radial-gradient(circle at 50% 50%, rgba(125,216,255,0.22), transparent 60%);
  animation: pulse 5s ease-in-out infinite;
}
@keyframes pulse { 0%, 100% { opacity: 0.6; } 50% { opacity: 1; } }
.box-lid {
  position: absolute;
  left: 50%; top: 50%;
  width: 120px; height: 120px;
  transform: translate(-50%, -50%) rotate(45deg);
  border: 2px solid var(--accent-2);
  border-radius: 12px;
  opacity: 0.85;
}
.box-card {
  position: absolute;
  width: 64px; height: 88px;
  border-radius: 8px;
  border: 1px solid rgba(238,240,251,0.25);
  background: linear-gradient(160deg, rgba(125,216,255,0.15), rgba(180,139,255,0.1));
  animation: float 6s ease-in-out infinite;
}
.box-card-a { top: 30px; left: 40px; transform: rotate(-14deg); }
.box-card-b { bottom: 26px; right: 44px; transform: rotate(10deg); animation-delay: 1.2s; }
.box-card-c { top: 46%; left: 50%; transform: translate(-50%,-50%) rotate(3deg); animation-delay: 2.4s; }

/* Carry grid */
.carry-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.carry-card {
  padding: 30px 24px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--surface);
  transition: transform 0.15s ease, border-color 0.15s ease;
}
.carry-card:hover { transform: translateY(-4px); border-color: var(--accent); }
.carry-icon {
  width: 42px; height: 42px;
  display: flex; align-items: center; justify-content: center;
  border-radius: 10px;
  background: var(--gradient);
  color: #0a0d18;
  font-size: 1.1rem;
  margin-bottom: 18px;
}
.carry-card h3 { font-family: var(--font-head); font-size: 1.1rem; margin-bottom: 10px; }
.carry-card p { color: var(--text-dim); font-size: 0.95rem; }

/* Visit */
.visit-details {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin: 30px 0 34px;
}
.visit-details dt {
  font-family: var(--font-head);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--accent);
  margin-bottom: 8px;
}
.visit-details dd { color: var(--text-dim); font-size: 0.95rem; }
.visit-details .booth {
  display: block;
  font-family: var(--font-head);
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 2px;
}
.visit-copy strong { color: var(--text); font-weight: 600; }

.map-embed {
  height: 340px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--surface);
  overflow: hidden;
}
.map-embed iframe {
  display: block;
  width: 100%;
  height: 100%;
  border: 0;
}
.map-link {
  display: inline-block;
  margin-top: 14px;
  font-family: var(--font-head);
  font-size: 0.85rem;
  color: var(--text-dim);
  transition: color 0.15s ease;
}
.map-link:hover { color: var(--accent); }

/* Contact */
.contact-list { margin-top: 28px; display: flex; flex-direction: column; gap: 16px; }
.contact-list li { display: flex; flex-direction: column; gap: 2px; }
.contact-label {
  font-family: var(--font-head);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-faint);
}
.contact-list a { color: var(--text); font-size: 0.98rem; transition: color 0.15s ease; }
.contact-list a:hover { color: var(--accent); }

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: 32px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--surface);
}
.contact-form label {
  font-family: var(--font-head);
  font-size: 0.82rem;
  color: var(--text-dim);
}
.contact-form input, .contact-form textarea, .contact-form select {
  width: 100%;
  padding: 12px 14px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--bg-alt);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 0.95rem;
  resize: vertical;
}
.contact-form select {
  appearance: none;
  resize: none;
  cursor: pointer;
  padding-right: 40px;
  background-image: linear-gradient(45deg, transparent 50%, currentColor 50%),
                    linear-gradient(135deg, currentColor 50%, transparent 50%);
  background-position: calc(100% - 20px) calc(50% + 2px), calc(100% - 14px) calc(50% + 2px);
  background-size: 6px 6px, 6px 6px;
  background-repeat: no-repeat;
}
.contact-form select option { background: var(--bg-alt); color: var(--text); }
.contact-form input:focus, .contact-form textarea:focus, .contact-form select:focus {
  outline: none;
  border-color: var(--accent);
}
.contact-form button { margin-top: 8px; }
.contact-form .hp-field {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  padding: 0;
  border: 0;
  opacity: 0;
}

/* ---------- Footer ---------- */
.site-footer {
  border-top: 1px solid var(--border);
  padding: 32px 0;
}
.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
  color: var(--text-faint);
  font-size: 0.88rem;
}
.footer-links { display: flex; gap: 22px; }
.footer-links a:hover { color: var(--accent); }

/* ---------- Responsive ---------- */
@media (max-width: 860px) {
  .main-nav { display: none; }
  .nav-toggle { display: flex; }

  .story-grid, .visit-grid, .contact-grid {
    grid-template-columns: 1fr;
  }
  .story-visual, .visit-visual { order: -1; }
  .box-art, .map-embed { height: 220px; }

  .carry-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 560px) {
  .wrap { padding: 0 18px; }
  .carry-grid { grid-template-columns: 1fr; }
  .visit-details { grid-template-columns: 1fr; }
  .hero-actions .btn { flex: 1; }
  .header-actions .btn-ghost { display: none; }
}

/* Mobile nav overlay */
@media (max-width: 860px) {
  .main-nav {
    position: fixed;
    top: var(--header-h);
    left: 0; right: 0;
    background: var(--bg-alt);
    border-bottom: 1px solid var(--border);
    flex-direction: column;
    padding: 20px 24px 28px;
    gap: 18px;
    transform: translateY(-12px);
    opacity: 0;
    pointer-events: none;
    transition: transform 0.2s ease, opacity 0.2s ease;
  }
  .main-nav.open {
    display: flex;
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }
  .nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  .nav-toggle.open span:nth-child(2) { opacity: 0; }
  .nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
}