/* ============================================
   NUBTK Student Portal — Main Styles
   ============================================ */

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --navy:   #0B1D3A;
  --navy2:  #112244;
  --gold:   #C9A84C;
  --gold2:  #E8C96A;
  --white:  #F5F3EE;
  --muted:  #8A99B3;
  --card-bg:#0E2040;
  --border: rgba(201,168,76,0.18);
  --radius: 14px;
  --ff-head: 'Playfair Display', serif;
  --ff-body: 'DM Sans', sans-serif;
}

html { scroll-behavior: smooth; }
body { background: var(--navy); color: var(--white); font-family: var(--ff-body); min-height: 100vh; }

/* NAVBAR */
.navbar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  background: rgba(11,29,58,0.92); backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  max-width: 1100px; margin: 0 auto;
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 28px; height: 60px;
}
.nav-brand { display: flex; align-items: center; gap: 8px; font-family: var(--ff-body); font-weight: 600; }
.brand-short { color: var(--gold); font-size: 1rem; letter-spacing: 1px; }
.brand-sep { color: var(--muted); }
.brand-full { color: var(--white); font-size: 0.85rem; font-weight: 400; opacity: 0.8; }
.nav-links { display: flex; gap: 6px; }
.nav-link {
  color: var(--muted); text-decoration: none; font-size: 0.875rem; font-weight: 500;
  padding: 6px 14px; border-radius: 8px; transition: all 0.2s;
}
.nav-link:hover, .nav-link.active { background: rgba(201,168,76,0.1); color: var(--gold2); }
.nav-admin { border: 1px solid var(--border); }
.nav-hamburger { display: none; background: none; border: none; color: var(--gold); font-size: 1.4rem; cursor: pointer; }

/* HERO */
.hero {
  min-height: 100vh; display: flex; align-items: center;
  position: relative; overflow: hidden; padding-top: 60px;
}
.hero-bg-grid {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(201,168,76,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(201,168,76,0.04) 1px, transparent 1px);
  background-size: 60px 60px;
}
.hero-bg-grid::after {
  content: '';
  position: absolute; inset: 0;
  background: radial-gradient(ellipse 70% 70% at 50% 40%, transparent 30%, var(--navy) 80%);
}
.hero-content {
  position: relative; z-index: 1;
  max-width: 1100px; margin: 0 auto; padding: 60px 28px 80px;
  width: 100%;
}
.hero-badge {
  display: inline-block; font-size: 0.75rem; font-weight: 500; letter-spacing: 1.5px;
  text-transform: uppercase; color: var(--gold); background: rgba(201,168,76,0.08);
  border: 1px solid var(--border); border-radius: 99px; padding: 6px 16px; margin-bottom: 28px;
}
.hero-title {
  font-family: var(--ff-head); font-size: clamp(3rem, 8vw, 6rem);
  line-height: 1.05; color: var(--white); margin-bottom: 16px; font-weight: 900;
}
.hero-title em { color: var(--gold); font-style: italic; }
.hero-sub { color: var(--muted); font-size: 1rem; margin-bottom: 52px; font-weight: 400; letter-spacing: 1px; }

/* HERO CARDS */
.hero-cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 18px; }
.hcard {
  background: var(--card-bg); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 28px 24px; text-decoration: none; color: var(--white);
  display: flex; align-items: flex-start; gap: 18px;
  transition: all 0.25s; position: relative; overflow: hidden;
}
.hcard::before {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(135deg, rgba(201,168,76,0.05) 0%, transparent 60%);
  opacity: 0; transition: opacity 0.25s;
}
.hcard:hover { border-color: var(--gold); transform: translateY(-3px); box-shadow: 0 16px 40px rgba(0,0,0,0.4); }
.hcard:hover::before { opacity: 1; }
.hcard-soon { cursor: default; opacity: 0.6; }
.hcard-soon:hover { transform: none; border-color: var(--border); box-shadow: none; }
.hcard-icon { font-size: 1.8rem; flex-shrink: 0; margin-top: 2px; }
.hcard-body h3 { font-size: 1rem; font-weight: 600; margin-bottom: 6px; }
.hcard-body p { font-size: 0.82rem; color: var(--muted); line-height: 1.6; }
.hcard-arrow { margin-left: auto; color: var(--gold); font-size: 1.2rem; align-self: center; flex-shrink: 0; }
.hcard-badge {
  margin-left: auto; align-self: flex-start; flex-shrink: 0;
  font-size: 0.7rem; font-weight: 600; letter-spacing: 1px; text-transform: uppercase;
  color: var(--muted); background: rgba(138,153,179,0.1); border: 1px solid rgba(138,153,179,0.2);
  border-radius: 99px; padding: 3px 10px;
}

/* FOOTER */
.footer { text-align: center; padding: 28px; color: var(--muted); font-size: 0.8rem; border-top: 1px solid var(--border); }

/* ============================================
   PAGE LAYOUT (used by cover.html, routine.html)
   ============================================ */
.page-wrap {
  min-height: 100vh; padding-top: 60px;
  max-width: 1200px; margin: 0 auto; padding-left: 24px; padding-right: 24px;
}
.page-header { padding: 40px 0 28px; border-bottom: 1px solid var(--border); margin-bottom: 32px; }
.page-header .breadcrumb { font-size: 0.78rem; color: var(--muted); margin-bottom: 12px; }
.page-header .breadcrumb a { color: var(--gold); text-decoration: none; }
.page-header h1 { font-family: var(--ff-head); font-size: 2.2rem; color: var(--white); }
.page-header p { color: var(--muted); font-size: 0.9rem; margin-top: 6px; }

/* TABS */
.tab-bar { display: flex; gap: 4px; margin-bottom: 28px; background: var(--card-bg); border: 1px solid var(--border); border-radius: 10px; padding: 4px; width: fit-content; }
.tab-btn {
  background: none; border: none; color: var(--muted); font-family: var(--ff-body);
  font-size: 0.875rem; font-weight: 500; padding: 8px 24px; border-radius: 8px; cursor: pointer; transition: all 0.2s;
}
.tab-btn.active { background: var(--gold); color: var(--navy); font-weight: 600; }

/* PANELS */
.panel { display: none; }
.panel.active { display: block; }

/* FORM STYLES */
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.form-group { display: flex; flex-direction: column; gap: 7px; }
.form-group.full { grid-column: 1/-1; }
.form-label { font-size: 0.8rem; font-weight: 500; color: var(--muted); text-transform: uppercase; letter-spacing: 0.8px; }
.form-input, .form-select, .form-textarea {
  background: var(--card-bg); border: 1px solid var(--border); color: var(--white);
  font-family: var(--ff-body); font-size: 0.9rem; padding: 11px 14px;
  border-radius: 9px; outline: none; transition: border-color 0.2s; width: 100%;
}
.form-input:focus, .form-select:focus, .form-textarea:focus { border-color: var(--gold); }
.form-select option { background: var(--navy2); }
.form-textarea { resize: vertical; min-height: 80px; }
.form-hint { font-size: 0.75rem; color: var(--muted); margin-top: 2px; }

/* BUTTONS */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 11px 22px; border-radius: 9px; font-family: var(--ff-body);
  font-size: 0.875rem; font-weight: 600; cursor: pointer; border: none; transition: all 0.2s;
  text-decoration: none;
}
.btn-gold { background: var(--gold); color: var(--navy); }
.btn-gold:hover { background: var(--gold2); transform: translateY(-1px); }
.btn-outline { background: transparent; border: 1px solid var(--border); color: var(--white); }
.btn-outline:hover { border-color: var(--gold); color: var(--gold); }
.btn-danger { background: rgba(220,50,50,0.15); border: 1px solid rgba(220,50,50,0.3); color: #f87171; }
.btn-danger:hover { background: rgba(220,50,50,0.25); }

.btn-row { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 24px; }

/* SECTION CARD */
.section-card {
  background: var(--card-bg); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 28px; margin-bottom: 20px;
}
.section-card h2 { font-family: var(--ff-head); font-size: 1.1rem; color: var(--gold); margin-bottom: 20px; }

/* LOGO GRID */
.logo-grid { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 8px; }
.logo-opt {
  width: 64px; height: 64px; border: 2px solid var(--border); border-radius: 10px;
  background: white; display: flex; align-items: center; justify-content: center;
  cursor: pointer; transition: all 0.2s; overflow: hidden; padding: 4px;
}
.logo-opt img { width: 100%; height: 100%; object-fit: contain; }
.logo-opt.selected { border-color: var(--gold); box-shadow: 0 0 0 3px rgba(201,168,76,0.2); }

/* PREVIEW BOX */
.preview-box {
  background: white; color: #111; border-radius: var(--radius);
  padding: 40px; min-height: 500px; position: relative;
  box-shadow: 0 20px 60px rgba(0,0,0,0.5);
}
.preview-scale-wrap { overflow-x: auto; }

/* NOTIFICATION */
.notif {
  position: fixed; bottom: 24px; right: 24px; z-index: 9999;
  background: var(--card-bg); border: 1px solid var(--gold); color: var(--white);
  padding: 14px 22px; border-radius: 10px; font-size: 0.875rem;
  box-shadow: 0 8px 32px rgba(0,0,0,0.4); transform: translateY(100px);
  opacity: 0; transition: all 0.3s; pointer-events: none;
}
.notif.show { transform: translateY(0); opacity: 1; }

/* ADMIN */
.admin-login { max-width: 400px; margin: 80px auto; }
.admin-main { display: none; }
.field-builder { display: flex; flex-direction: column; gap: 14px; }
.field-item {
  background: rgba(255,255,255,0.03); border: 1px solid var(--border);
  border-radius: 10px; padding: 16px 18px; display: flex; align-items: center; gap: 12px;
}
.field-item-label { flex: 1; font-size: 0.9rem; font-weight: 500; }
.field-item-type { font-size: 0.78rem; color: var(--muted); }
.field-item-actions { display: flex; gap: 8px; }
.field-drag { cursor: grab; color: var(--muted); font-size: 1.1rem; }
.toggle-sw {
  position: relative; width: 40px; height: 22px; display: inline-block; flex-shrink: 0;
}
.toggle-sw input { opacity: 0; width: 0; height: 0; }
.toggle-track {
  position: absolute; inset: 0; background: rgba(255,255,255,0.1); border-radius: 99px;
  cursor: pointer; transition: 0.2s;
}
.toggle-track::after {
  content: ''; position: absolute; width: 16px; height: 16px; left: 3px; top: 3px;
  background: white; border-radius: 50%; transition: 0.2s;
}
.toggle-sw input:checked + .toggle-track { background: var(--gold); }
.toggle-sw input:checked + .toggle-track::after { left: 21px; }

/* ROUTINE TABLE */
.routine-wrap { overflow-x: auto; }
.routine-table {
  width: 100%; border-collapse: collapse; min-width: 700px;
  font-family: var(--ff-body); font-size: 0.82rem;
}
.routine-table th {
  background: var(--navy); color: var(--gold); text-align: center;
  padding: 12px 10px; font-weight: 600; letter-spacing: 0.5px;
  border: 1px solid var(--border);
}
.routine-table td {
  border: 1px solid rgba(201,168,76,0.12); padding: 10px 8px; text-align: center;
  vertical-align: middle; color: #222; background: white;
}
.routine-table td.empty { background: #f7f7f7; color: #bbb; }
.routine-cell-course { font-weight: 700; font-size: 0.85rem; color: #0B1D3A; }
.routine-cell-room { font-size: 0.72rem; color: #666; margin-top: 2px; }
.routine-cell-type { font-size: 0.65rem; font-weight: 600; letter-spacing: 0.5px; padding: 2px 6px; border-radius: 4px; display: inline-block; margin-top: 3px; }
.type-theory { background: #EBF4FF; color: #2563EB; }
.type-lab { background: #FEF3C7; color: #D97706; }

/* RESPONSIVE */
@media (max-width: 700px) {
  .form-grid { grid-template-columns: 1fr; }
  .nav-links { display: none; flex-direction: column; position: absolute; top: 60px; left: 0; right: 0; background: var(--navy2); padding: 12px; border-bottom: 1px solid var(--border); }
  .nav-links.open { display: flex; }
  .nav-hamburger { display: block; }
  .hero-title { font-size: 3rem; }
  .preview-box { padding: 20px; }
}