/* ════════════════════════════════════════════════════
   KCARM Landing Page — Frontend Stylesheet
   ════════════════════════════════════════════════════ */
@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+KR:wght@300;400;500;700&family=Cormorant+Garamond:ital,wght@0,400;0,600;0,700;1,400&family=Inter:wght@300;400;500;600;700&display=swap');

:root {
  --gold:       #C9A84C;
  --gold-light: #e8c96a;
  --gold-glow:  rgba(201,168,76,0.25);
  --dark:       #080C14;
  --dark-2:     #0D1117;
  --dark-3:     #131924;
  --navy:       #1a2235;
  --navy-2:     #212d45;
  --glass:      rgba(255,255,255,0.04);
  --glass-2:    rgba(255,255,255,0.08);
  --border:     rgba(255,255,255,0.08);
  --text:       #f0f4ff;
  --text-muted: rgba(240,244,255,0.6);
  --radius:     16px;
  --shadow:     0 24px 64px rgba(0,0,0,0.5);
}

*, *::before, *::after { margin:0; padding:0; box-sizing:border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: 'Inter', 'Noto Sans KR', sans-serif;
  background: var(--dark);
  color: var(--text);
  overflow-x: hidden;
  line-height: 1.7;
}

/* ── Scrollbar ─────────────────────────────────────── */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--dark-2); }
::-webkit-scrollbar-thumb { background: var(--gold); border-radius: 3px; }

/* ══ NAVIGATION ════════════════════════════════════════ */
.kcarm-nav {
  position: fixed; top: 0; left: 0; width: 100%; z-index: 1000;
  padding: 0 48px;
  display: flex; align-items: center; justify-content: space-between;
  height: 72px;
  background: rgba(8,12,20,0.6);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  transition: background 0.3s;
}
.kcarm-nav.scrolled { background: rgba(8,12,20,0.95); }

.nav-logo { display: flex; align-items: center; gap: 14px; text-decoration: none; }
.nav-logo-img { height: 44px; width: auto; object-fit: contain; }
.nav-logo-text { display: flex; flex-direction: column; }
.nav-logo-abbr {
  font-family: 'Cormorant Garamond', serif;
  font-size: 26px; font-weight: 700;
  color: var(--gold);
  letter-spacing: 3px;
  line-height: 1;
}
.nav-logo-full {
  font-size: 9px; font-weight: 400;
  color: var(--text-muted);
  letter-spacing: 0.5px;
  max-width: 280px;
  line-height: 1.3;
}

.nav-menu { display: flex; align-items: center; gap: 8px; list-style: none; }
.nav-menu a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 13px; font-weight: 500;
  padding: 8px 14px;
  border-radius: 8px;
  transition: all 0.2s;
  letter-spacing: 0.3px;
}
.nav-menu a:hover { color: var(--gold); background: var(--glass-2); }
.nav-menu .nav-cta {
  background: linear-gradient(135deg, var(--gold), var(--gold-light));
  color: #000 !important;
  font-weight: 700;
  padding: 10px 22px;
  border-radius: 10px;
}
.nav-menu .nav-cta:hover { transform: translateY(-1px); box-shadow: 0 6px 20px var(--gold-glow); background: var(--glass-2) !important; color: var(--gold) !important; }

.mobile-toggle { display: none; background: none; border: none; cursor: pointer; }
.mobile-toggle span { display: block; width: 24px; height: 2px; background: var(--gold); margin: 5px 0; transition: 0.3s; border-radius: 2px; }

/* ══ HERO ══════════════════════════════════════════════ */
.hero {
  position: relative; min-height: 100vh;
  display: flex; align-items: center; justify-content: center;
  overflow: hidden;
  padding: 100px 48px 80px;
}
#hero-canvas {
  position: absolute; top:0; left:0; width:100%; height:100%;
  pointer-events: none;
}
.hero-overlay {
  position: absolute; inset: 0;
  background: radial-gradient(ellipse 80% 60% at 50% 40%, rgba(201,168,76,0.07) 0%, transparent 70%),
              linear-gradient(180deg, transparent 60%, var(--dark) 100%);
}
.hero-content {
  position: relative; z-index: 2;
  text-align: center; max-width: 860px;
}
.hero-badge {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--glass-2); border: 1px solid var(--border);
  padding: 8px 20px; border-radius: 100px; margin-bottom: 32px;
  font-size: 12px; font-weight: 600;
  color: var(--gold); letter-spacing: 1.5px; text-transform: uppercase;
  backdrop-filter: blur(10px);
}
.hero-badge::before {
  content: ''; width: 6px; height: 6px;
  background: var(--gold); border-radius: 50%;
  animation: pulse-dot 2s infinite;
}
@keyframes pulse-dot {
  0%,100%{ transform:scale(1); opacity:1; }
  50%{ transform:scale(1.6); opacity:0.5; }
}
.hero h1 {
  font-family: 'Cormorant Garamond', serif;
  font-size: clamp(38px, 6vw, 72px);
  font-weight: 700;
  line-height: 1.15;
  margin-bottom: 24px;
  background: linear-gradient(135deg, #fff 30%, var(--gold) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-sub {
  font-size: clamp(15px, 2vw, 18px);
  color: var(--text-muted);
  max-width: 620px;
  margin: 0 auto 40px;
  line-height: 1.8;
}
.hero-actions { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }
.btn-primary {
  background: linear-gradient(135deg, var(--gold), var(--gold-light));
  color: #000; font-weight: 700; font-size: 15px;
  padding: 16px 36px; border-radius: 12px;
  text-decoration: none; border: none; cursor: pointer;
  box-shadow: 0 8px 28px var(--gold-glow);
  transition: all 0.3s;
  display: inline-flex; align-items: center; gap: 8px;
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 12px 36px rgba(201,168,76,0.4); }
.btn-secondary {
  background: var(--glass-2);
  color: var(--text); font-weight: 600; font-size: 15px;
  padding: 16px 36px; border-radius: 12px;
  text-decoration: none;
  border: 1px solid var(--border);
  backdrop-filter: blur(10px);
  transition: all 0.3s;
  display: inline-flex; align-items: center; gap: 8px;
}
.btn-secondary:hover { border-color: var(--gold); color: var(--gold); transform: translateY(-2px); }

.hero-scroll {
  position: absolute; bottom: 40px; left: 50%; transform: translateX(-50%);
  display: flex; flex-direction: column; align-items: center; gap: 8px;
  color: var(--text-muted); font-size: 11px; letter-spacing: 2px; text-transform: uppercase;
  animation: bounce 2s infinite;
}
@keyframes bounce { 0%,100%{ transform:translateX(-50%) translateY(0); } 50%{ transform:translateX(-50%) translateY(6px); } }
.hero-scroll-line { width: 1px; height: 36px; background: linear-gradient(to bottom, var(--gold), transparent); }

/* ══ STATS BAR ═════════════════════════════════════════ */
.stats-bar {
  background: var(--dark-3);
  border-top: 1px solid var(--border); border-bottom: 1px solid var(--border);
  padding: 48px;
}
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; max-width: 960px; margin: 0 auto; }
.stat-item {
  text-align: center; padding: 24px;
  border-right: 1px solid var(--border);
}
.stat-item:last-child { border-right: none; }
.stat-num {
  font-family: 'Cormorant Garamond', serif;
  font-size: 48px; font-weight: 700;
  color: var(--gold);
  line-height: 1;
  margin-bottom: 8px;
}
.stat-label { font-size: 13px; color: var(--text-muted); font-weight: 500; letter-spacing: 0.3px; }

/* ══ SECTION COMMON ════════════════════════════════════ */
section { padding: 100px 48px; }
.section-label {
  font-size: 11px; font-weight: 700; letter-spacing: 3px;
  text-transform: uppercase; color: var(--gold);
  margin-bottom: 16px; display: block;
}
.section-title {
  font-family: 'Cormorant Garamond', serif;
  font-size: clamp(28px, 4vw, 48px);
  font-weight: 700; line-height: 1.2;
  margin-bottom: 20px;
}
.section-desc {
  font-size: 16px; color: var(--text-muted);
  max-width: 580px; line-height: 1.8;
}
.section-center { text-align: center; }
.section-center .section-desc { margin: 0 auto; }
.container { max-width: 1100px; margin: 0 auto; }

/* ══ ABOUT ═════════════════════════════════════════════ */
#about { background: var(--dark-2); }
.about-grid {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 80px; align-items: center; max-width: 1100px; margin: 0 auto;
}
.about-visual {
  position: relative;
}
.about-visual-box {
  background: linear-gradient(135deg, var(--navy), var(--navy-2));
  border: 1px solid var(--border);
  border-radius: 24px;
  padding: 48px;
  position: relative; overflow: hidden;
}
.about-visual-box::before {
  content: 'KCARM';
  position: absolute; bottom: -20px; right: -10px;
  font-family: 'Cormorant Garamond', serif;
  font-size: 120px; font-weight: 900;
  color: rgba(201,168,76,0.05);
  letter-spacing: 8px;
  pointer-events: none;
}
.about-pillars { display: flex; flex-direction: column; gap: 20px; position: relative; z-index: 1; }
.pillar {
  background: var(--glass-2); border: 1px solid var(--border);
  border-radius: 12px; padding: 20px 24px;
  display: flex; align-items: center; gap: 16px;
  transition: all 0.3s;
}
.pillar:hover { border-color: var(--gold); transform: translateX(6px); }
.pillar-icon { font-size: 24px; flex-shrink: 0; }
.pillar-text h4 { font-size: 14px; font-weight: 700; margin-bottom: 4px; color: var(--gold); }
.pillar-text p { font-size: 13px; color: var(--text-muted); }

/* ══ PATHWAY TOGGLE ════════════════════════════════════ */
#pathway { background: var(--dark); }
.pathway-toggle-wrap { text-align: center; margin-bottom: 48px; }
.pathway-toggle {
  display: inline-flex;
  background: var(--navy);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 6px;
  gap: 6px;
}
.pathway-btn {
  padding: 12px 32px; border-radius: 10px;
  border: none; cursor: pointer; font-size: 14px; font-weight: 700;
  transition: all 0.3s; letter-spacing: 0.3px;
  color: var(--text-muted); background: transparent;
}
.pathway-btn.active {
  background: linear-gradient(135deg, var(--gold), var(--gold-light));
  color: #000;
  box-shadow: 0 4px 18px var(--gold-glow);
}
.pathway-panel { display: none; }
.pathway-panel.active { display: block; animation: fadeIn 0.4s ease; }
@keyframes fadeIn { from{ opacity:0; transform:translateY(8px); } to{ opacity:1; transform:translateY(0); } }

/* ══ CARDS GRID ════════════════════════════════════════ */
.cards-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; max-width: 1100px; margin: 0 auto; }
.service-card {
  background: var(--glass);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  cursor: default;
  position: relative; overflow: hidden;
}
.service-card::before {
  content: '';
  position: absolute; top: 0; left: 0;
  width: 100%; height: 3px;
  background: linear-gradient(90deg, transparent, var(--gold), transparent);
  opacity: 0; transition: opacity 0.3s;
}
.service-card:hover {
  transform: translateY(-8px) rotateX(2deg);
  border-color: rgba(201,168,76,0.4);
  box-shadow: 0 20px 60px rgba(0,0,0,0.4), 0 0 0 1px rgba(201,168,76,0.1);
}
.service-card:hover::before { opacity: 1; }
.card-icon {
  width: 56px; height: 56px; border-radius: 14px;
  background: linear-gradient(135deg, var(--navy), var(--navy-2));
  border: 1px solid var(--border);
  display: flex; align-items: center; justify-content: center;
  font-size: 24px; margin-bottom: 20px;
}
.service-card h3 { font-size: 17px; font-weight: 700; margin-bottom: 12px; color: var(--gold); }
.service-card p { font-size: 14px; color: var(--text-muted); line-height: 1.7; }

/* ══ FACULTY ═══════════════════════════════════════════ */
#faculty { background: var(--dark-3); }
.faculty-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; max-width: 1100px; margin: 40px auto 0; }
.faculty-card {
  background: var(--navy);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: all 0.4s;
  transform-style: preserve-3d;
}
.faculty-card:hover {
  transform: perspective(800px) rotateY(-4deg) rotateX(2deg) translateY(-6px);
  box-shadow: 20px 20px 60px rgba(0,0,0,0.5), 0 0 0 1px rgba(201,168,76,0.2);
}
.faculty-photo {
  width: 100%; height: 240px; object-fit: cover;
  display: block;
}
.faculty-photo-placeholder {
  width: 100%; height: 240px;
  background: linear-gradient(135deg, var(--navy-2), #0a1628);
  display: flex; align-items: center; justify-content: center;
  font-size: 64px;
}
.faculty-info { padding: 24px; }
.faculty-info h3 { font-size: 17px; font-weight: 700; color: var(--gold); margin-bottom: 6px; }
.faculty-info .title { font-size: 12px; color: var(--text-muted); letter-spacing: 0.5px; margin-bottom: 12px; }
.faculty-info p { font-size: 13px; color: var(--text-muted); line-height: 1.6; }

/* ══ PARTNER TICKER ════════════════════════════════════ */
#partners { background: var(--dark-2); padding: 60px 0; overflow: hidden; }
.partners-title { text-align: center; margin-bottom: 40px; padding: 0 48px; }
.partners-title h2 {
  font-family: 'Cormorant Garamond', serif;
  font-size: 28px; color: var(--gold); margin-bottom: 8px;
}
.partners-title p { font-size: 14px; color: var(--text-muted); }
.ticker-wrap {
  position: relative; overflow: hidden;
  mask-image: linear-gradient(to right, transparent 0%, black 10%, black 90%, transparent 100%);
  -webkit-mask-image: linear-gradient(to right, transparent 0%, black 10%, black 90%, transparent 100%);
}
.ticker-track {
  display: flex; gap: 48px; align-items: center;
  animation: ticker-scroll 28s linear infinite;
  width: max-content;
}
.ticker-wrap:hover .ticker-track { animation-play-state: paused; }
@keyframes ticker-scroll { from{ transform: translateX(0); } to{ transform: translateX(-50%); } }
.ticker-item {
  background: var(--glass-2);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 16px 32px;
  display: flex; align-items: center; justify-content: center;
  min-width: 160px; height: 72px;
  transition: all 0.3s; flex-shrink: 0;
}
.ticker-item:hover {
  border-color: var(--gold);
  background: rgba(201,168,76,0.08);
  transform: scale(1.05);
}
.ticker-item img { max-height: 40px; max-width: 120px; object-fit: contain; filter: brightness(0.7) grayscale(0.3); transition: filter 0.3s; }
.ticker-item:hover img { filter: brightness(1) grayscale(0); }
.ticker-item span { color: var(--text-muted); font-size: 13px; font-weight: 600; }

/* ══ CONTACT ═══════════════════════════════════════════ */
#contact { background: var(--dark); }
.contact-wrap { max-width: 720px; margin: 0 auto; }
.contact-form {
  background: var(--glass);
  border: 1px solid var(--border);
  border-radius: 24px;
  padding: 48px;
  backdrop-filter: blur(20px);
  margin-top: 48px;
}
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; margin-bottom: 20px; }
.form-field { display: flex; flex-direction: column; gap: 8px; }
.form-field.full { grid-column: 1 / -1; }
.form-field label { font-size: 12px; font-weight: 600; color: var(--text-muted); letter-spacing: 0.5px; text-transform: uppercase; }
.form-field input,
.form-field select,
.form-field textarea {
  background: rgba(255,255,255,0.05);
  border: 1.5px solid var(--border);
  border-radius: 10px;
  padding: 14px 16px;
  color: var(--text);
  font-size: 14px;
  font-family: 'Inter', sans-serif;
  transition: all 0.2s;
  appearance: none;
}
.form-field input:focus,
.form-field select:focus,
.form-field textarea:focus {
  outline: none;
  border-color: var(--gold);
  box-shadow: 0 0 0 4px var(--gold-glow);
  background: rgba(201,168,76,0.04);
}
.form-field select option { background: var(--dark-2); color: var(--text); }
.form-field textarea { resize: vertical; min-height: 120px; }
.form-submit { width: 100%; margin-top: 8px; }
.form-success {
  display: none; text-align: center; padding: 20px;
  background: rgba(16,185,129,0.1); border: 1px solid rgba(16,185,129,0.3);
  border-radius: 12px; color: #10b981; margin-top: 16px;
  font-weight: 600;
}

/* ══ FOOTER ════════════════════════════════════════════ */
footer {
  background: var(--dark-3);
  border-top: 1px solid var(--border);
  padding: 48px;
  text-align: center;
}
.footer-logo-abbr {
  font-family: 'Cormorant Garamond', serif;
  font-size: 32px; font-weight: 700;
  color: var(--gold); letter-spacing: 4px;
  margin-bottom: 8px;
}
.footer-logo-full { font-size: 11px; color: var(--text-muted); margin-bottom: 24px; max-width: 480px; margin-left: auto; margin-right: auto; }
.footer-links { display: flex; gap: 24px; justify-content: center; margin-bottom: 24px; flex-wrap: wrap; }
.footer-links a { color: var(--text-muted); text-decoration: none; font-size: 13px; transition: color 0.2s; }
.footer-links a:hover { color: var(--gold); }
.footer-copy { font-size: 12px; color: rgba(255,255,255,0.25); }

/* ══ SCROLL REVEAL ═════════════════════════════════════ */
.reveal {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ══ RESPONSIVE ════════════════════════════════════════ */
@media (max-width: 900px) {
  .kcarm-nav { padding: 0 24px; }
  .nav-menu { display: none; flex-direction: column; position: absolute; top: 72px; left: 0; width: 100%; background: rgba(8,12,20,0.97); padding: 16px; gap: 4px; }
  .nav-menu.open { display: flex; }
  .mobile-toggle { display: block; }
  .hero { padding: 100px 24px 80px; }
  section { padding: 72px 24px; }
  .about-grid { grid-template-columns: 1fr; gap: 40px; }
  .cards-grid { grid-template-columns: 1fr 1fr; }
  .faculty-grid { grid-template-columns: 1fr 1fr; }
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .stat-item { border-right: none; border-bottom: 1px solid var(--border); }
}
@media (max-width: 600px) {
  .cards-grid { grid-template-columns: 1fr; }
  .faculty-grid { grid-template-columns: 1fr; }
  .form-grid { grid-template-columns: 1fr; }
  .stats-bar { padding: 36px 24px; }
  .contact-form { padding: 28px 20px; }
}