/* ── Reset & Variables ───────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --navy:    #0a1628;
  --navy2:   #112040;
  --steel:   #1e3a5f;
  --accent:  #e8a020;
  --accent2: #f0c060;
  --light:   #f4f6f9;
  --muted:   #8a9bb0;
  --white:   #ffffff;
  --danger:  #c0392b;
  --success: #27ae60;
  --radius:  8px;
  --shadow:  0 4px 20px rgba(0,0,0,.35);
  --font-head: 'Barlow Condensed', sans-serif;
  --font-body: 'Inter', sans-serif;
}

body {
  font-family: var(--font-body);
  background: var(--light);
  color: #1a2a3a;
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* ── Utilities ───────────────────────────────────────────────────────────── */
.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }
.text-center { text-align: center; }
.mt-1 { margin-top: 8px; }
.mt-2 { margin-top: 16px; }
.mt-4 { margin-top: 32px; }
.mb-2 { margin-bottom: 16px; }
.mb-4 { margin-bottom: 32px; }
.gap { gap: 16px; }
img { max-width: 100%; display: block; }

/* ── Buttons ─────────────────────────────────────────────────────────────── */
.btn {
  display: inline-block;
  padding: 10px 22px;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: .9rem;
  cursor: pointer;
  text-decoration: none;
  border: none;
  transition: all .2s;
}
.btn-primary  { background: var(--accent);  color: var(--navy); }
.btn-primary:hover  { background: var(--accent2); }
.btn-secondary{ background: var(--steel);   color: var(--white); }
.btn-secondary:hover{ background: #2a4d7a; }
.btn-danger   { background: var(--danger);  color: var(--white); }
.btn-danger:hover   { background: #a93226; }
.btn-sm { padding: 6px 14px; font-size: .82rem; }
.btn-outline { background: transparent; border: 2px solid var(--accent); color: var(--accent); }
.btn-outline:hover { background: var(--accent); color: var(--navy); }

/* ── Header ──────────────────────────────────────────────────────────────── */
.site-header {
  background: var(--navy);
  border-bottom: 3px solid var(--accent);
  position: sticky; top: 0; z-index: 100;
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 20px;
}
.logo {
  display: flex; align-items: center; gap: 10px;
  text-decoration: none; color: var(--white);
}
.logo-icon { font-size: 1.8rem; }
.logo-text {
  font-family: var(--font-head);
  font-size: 1.8rem;
  font-weight: 700;
  letter-spacing: 1px;
  color: var(--accent);
}
.main-nav { display: flex; gap: 6px; }
.main-nav a {
  color: var(--muted);
  text-decoration: none;
  font-weight: 500;
  font-size: .9rem;
  padding: 6px 14px;
  border-radius: var(--radius);
  transition: all .2s;
}
.main-nav a:hover, .main-nav a.active { color: var(--white); background: var(--steel); }
.main-nav .nav-admin { color: var(--accent); }
.nav-toggle { display: none; background: none; border: none; color: var(--white); font-size: 1.5rem; cursor: pointer; }

/* ── Footer ──────────────────────────────────────────────────────────────── */
.site-footer {
  background: var(--navy);
  color: var(--muted);
  margin-top: auto;
  padding: 40px 0 20px;
}
.footer-inner {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
  justify-content: space-between;
  align-items: flex-start;
}
.footer-brand p { font-size: .85rem; margin-top: 4px; }
.footer-brand strong { color: var(--accent); font-family: var(--font-head); font-size: 1.2rem; }
.footer-links { display: flex; flex-direction: column; gap: 6px; }
.footer-links a { color: var(--muted); text-decoration: none; font-size: .9rem; }
.footer-links a:hover { color: var(--accent); }
.footer-copy { font-size: .8rem; width: 100%; text-align: center; border-top: 1px solid var(--steel); padding-top: 16px; margin-top: 8px; }

/* ── Hero ────────────────────────────────────────────────────────────────── */
.hero {
  background: linear-gradient(135deg, var(--navy) 0%, var(--steel) 100%);
  color: var(--white);
  padding: 80px 20px;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: '✈';
  position: absolute;
  font-size: 300px;
  opacity: .04;
  right: -60px; top: -60px;
  transform: rotate(30deg);
}
.hero h1 {
  font-family: var(--font-head);
  font-size: clamp(2.2rem, 5vw, 3.8rem);
  font-weight: 700;
  letter-spacing: 2px;
  margin-bottom: 12px;
}
.hero h1 span { color: var(--accent); }
.hero p { font-size: 1.1rem; color: var(--muted); max-width: 540px; margin: 0 auto 28px; }
.hero-btns { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }

/* ── Section titles ──────────────────────────────────────────────────────── */
.section { padding: 60px 0; }
.section-title {
  font-family: var(--font-head);
  font-size: 2rem;
  font-weight: 700;
  color: var(--navy);
  letter-spacing: 1px;
  margin-bottom: 8px;
}
.section-title span { color: var(--accent); }
.section-subtitle { color: var(--muted); margin-bottom: 36px; }
.divider { border: none; border-top: 3px solid var(--accent); width: 60px; margin: 10px 0 32px; }

/* ── Category pills ──────────────────────────────────────────────────────── */
.cat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 16px;
  margin-bottom: 48px;
}
.cat-card {
  background: var(--navy);
  color: var(--white);
  border-radius: var(--radius);
  padding: 24px 16px;
  text-align: center;
  text-decoration: none;
  font-family: var(--font-head);
  font-size: 1.1rem;
  font-weight: 600;
  letter-spacing: .5px;
  transition: all .2s;
  border: 2px solid transparent;
}
.cat-card:hover { border-color: var(--accent); color: var(--accent); }
.cat-card .cat-icon { font-size: 2rem; margin-bottom: 8px; }

/* ── Artifact card grid ──────────────────────────────────────────────────── */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 24px;
}
.artifact-card {
  background: var(--white);
  border-radius: var(--radius);
  box-shadow: 0 2px 12px rgba(0,0,0,.08);
  overflow: hidden;
  transition: transform .2s, box-shadow .2s;
  display: flex; flex-direction: column;
}
.artifact-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.artifact-card .card-img {
  width: 100%; height: 200px;
  object-fit: cover;
  background: var(--navy2);
}
.artifact-card .card-img-placeholder {
  width: 100%; height: 200px;
  background: linear-gradient(135deg, var(--navy) 0%, var(--steel) 100%);
  display: flex; align-items: center; justify-content: center;
  font-size: 3rem; color: var(--accent);
}
.artifact-card .card-body { padding: 16px; flex: 1; display: flex; flex-direction: column; }
.artifact-card .card-badge {
  display: inline-block;
  font-size: .72rem; font-weight: 600;
  background: var(--navy); color: var(--accent);
  border-radius: 4px; padding: 2px 8px;
  margin-bottom: 8px; text-transform: uppercase; letter-spacing: .5px;
}
.artifact-card .card-title {
  font-family: var(--font-head);
  font-size: 1.3rem; font-weight: 700;
  color: var(--navy); margin-bottom: 4px;
}
.artifact-card .card-sub { font-size: .85rem; color: var(--muted); margin-bottom: 12px; }
.artifact-card .card-price { margin-top: auto; display: flex; align-items: center; justify-content: space-between; }
.artifact-card .price-sale { font-size: 1.4rem; font-weight: 700; color: var(--accent); }
.artifact-card .price-orig { font-size: .85rem; color: var(--muted); text-decoration: line-through; }
.sold-badge { background: var(--danger); color: var(--white); padding: 2px 10px; border-radius: 4px; font-size: .8rem; font-weight: 600; }

/* ── Filters bar ─────────────────────────────────────────────────────────── */
.filters {
  background: var(--white);
  border-radius: var(--radius);
  padding: 20px;
  box-shadow: 0 2px 8px rgba(0,0,0,.06);
  margin-bottom: 32px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: flex-end;
}
.filter-group { display: flex; flex-direction: column; gap: 4px; }
.filter-group label { font-size: .8rem; font-weight: 600; color: var(--muted); text-transform: uppercase; letter-spacing: .5px; }
.filter-group select, .filter-group input {
  padding: 8px 12px;
  border: 1px solid #d0d8e4;
  border-radius: var(--radius);
  font-size: .9rem;
  background: var(--white);
  min-width: 140px;
}
.filter-group select:focus, .filter-group input:focus { outline: 2px solid var(--accent); border-color: transparent; }

/* ── Artifact detail ─────────────────────────────────────────────────────── */
.artifact-detail { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; padding: 40px 0; }
.artifact-gallery .main-img {
  width: 100%; aspect-ratio: 4/3;
  object-fit: cover;
  border-radius: var(--radius);
  background: var(--navy2);
  margin-bottom: 12px;
}
.thumb-row { display: flex; gap: 8px; flex-wrap: wrap; }
.thumb-row img { width: 72px; height: 72px; object-fit: cover; border-radius: 4px; cursor: pointer; border: 2px solid transparent; }
.thumb-row img.active, .thumb-row img:hover { border-color: var(--accent); }
.artifact-info .info-tag {
  display: inline-block; background: var(--navy); color: var(--accent);
  font-size: .75rem; font-weight: 700; text-transform: uppercase;
  padding: 3px 10px; border-radius: 4px; letter-spacing: 1px; margin-bottom: 12px;
}
.artifact-info h1 {
  font-family: var(--font-head);
  font-size: 2.4rem; font-weight: 700; color: var(--navy); margin-bottom: 4px;
}
.artifact-info .sub { color: var(--muted); font-size: 1rem; margin-bottom: 24px; }
.spec-table { width: 100%; border-collapse: collapse; margin-bottom: 24px; }
.spec-table td { padding: 8px 0; border-bottom: 1px solid #e8edf3; font-size: .92rem; }
.spec-table td:first-child { font-weight: 600; color: var(--muted); width: 45%; }
.big-price { font-size: 2.2rem; font-weight: 700; color: var(--accent); }
.orig-price { font-size: 1rem; color: var(--muted); text-decoration: line-through; }

/* ── Aircraft DB ─────────────────────────────────────────────────────────── */
.aircraft-card {
  background: var(--white);
  border-radius: var(--radius);
  box-shadow: 0 2px 12px rgba(0,0,0,.07);
  overflow: hidden;
  transition: transform .2s;
}
.aircraft-card:hover { transform: translateY(-3px); }
.aircraft-card img { width: 100%; height: 180px; object-fit: cover; background: var(--navy2); }
.aircraft-card .img-placeholder {
  width: 100%; height: 180px;
  background: linear-gradient(135deg, var(--navy) 0%, var(--steel) 100%);
  display: flex; align-items: center; justify-content: center;
  font-size: 2.5rem; color: var(--accent);
}
.aircraft-card .ac-body { padding: 16px; }
.aircraft-card .ac-cat {
  font-size: .72rem; font-weight: 700; text-transform: uppercase;
  color: var(--accent); letter-spacing: .5px; margin-bottom: 4px;
}
.aircraft-card .ac-name { font-family: var(--font-head); font-size: 1.4rem; font-weight: 700; color: var(--navy); }
.aircraft-card .ac-stats { display: flex; gap: 12px; margin-top: 10px; flex-wrap: wrap; }
.stat-pill { background: var(--light); border-radius: 4px; padding: 4px 10px; font-size: .78rem; color: var(--muted); }
.stat-pill strong { color: var(--navy); }

/* ── Aircraft detail ─────────────────────────────────────────────────────── */
.aircraft-detail-header {
  background: linear-gradient(135deg, var(--navy) 0%, var(--steel) 100%);
  color: var(--white); padding: 60px 0;
}
.aircraft-detail-header h1 { font-family: var(--font-head); font-size: 3rem; font-weight: 700; }
.aircraft-detail-header .badge { color: var(--accent); font-size: 1rem; font-weight: 600; }
.fact-box {
  background: var(--navy);
  color: var(--accent2);
  border-left: 4px solid var(--accent);
  padding: 16px 20px;
  border-radius: 0 var(--radius) var(--radius) 0;
  font-style: italic;
  margin: 24px 0;
}

/* ── Admin shared ────────────────────────────────────────────────────────── */
.admin-layout { display: flex; min-height: calc(100vh - 56px); }
.admin-sidebar {
  width: 220px; flex-shrink: 0;
  background: var(--navy);
  padding: 24px 0;
}
.admin-sidebar a {
  display: block;
  color: var(--muted);
  text-decoration: none;
  padding: 10px 24px;
  font-size: .9rem;
  font-weight: 500;
  transition: all .15s;
  border-left: 3px solid transparent;
}
.admin-sidebar a:hover, .admin-sidebar a.active { color: var(--white); border-left-color: var(--accent); background: rgba(255,255,255,.05); }
.admin-sidebar .sidebar-label { color: var(--muted); font-size: .72rem; text-transform: uppercase; letter-spacing: 1px; padding: 18px 24px 6px; }
.admin-content { flex: 1; padding: 32px; background: var(--light); overflow-y: auto; }
.admin-card {
  background: var(--white);
  border-radius: var(--radius);
  box-shadow: 0 2px 10px rgba(0,0,0,.06);
  padding: 28px;
  margin-bottom: 24px;
}
.admin-title { font-family: var(--font-head); font-size: 1.8rem; font-weight: 700; color: var(--navy); margin-bottom: 20px; }
.admin-stats { display: flex; gap: 20px; flex-wrap: wrap; margin-bottom: 28px; }
.stat-card {
  background: var(--white);
  border-radius: var(--radius);
  padding: 20px 28px;
  box-shadow: 0 2px 10px rgba(0,0,0,.07);
  flex: 1; min-width: 140px;
  border-top: 4px solid var(--accent);
}
.stat-card .stat-num { font-family: var(--font-head); font-size: 2.2rem; font-weight: 700; color: var(--navy); }
.stat-card .stat-lbl { font-size: .82rem; color: var(--muted); font-weight: 500; }

/* ── Forms ───────────────────────────────────────────────────────────────── */
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.form-group { display: flex; flex-direction: column; gap: 6px; }
.form-group.full { grid-column: 1 / -1; }
.form-group label { font-size: .82rem; font-weight: 600; color: var(--muted); text-transform: uppercase; letter-spacing: .5px; }
.form-group input, .form-group select, .form-group textarea {
  padding: 10px 14px;
  border: 1px solid #d0d8e4;
  border-radius: var(--radius);
  font-size: .95rem;
  font-family: var(--font-body);
  background: var(--white);
  transition: border-color .15s;
}
.form-group input:focus, .form-group select:focus, .form-group textarea:focus {
  outline: none; border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(232,160,32,.15);
}
.form-group textarea { resize: vertical; min-height: 100px; }
.form-actions { margin-top: 24px; display: flex; gap: 12px; }

/* ── Data table ──────────────────────────────────────────────────────────── */
.data-table { width: 100%; border-collapse: collapse; font-size: .9rem; }
.data-table th { text-align: left; padding: 10px 14px; background: var(--navy); color: var(--muted); font-size: .78rem; text-transform: uppercase; letter-spacing: .5px; }
.data-table td { padding: 12px 14px; border-bottom: 1px solid #edf0f5; vertical-align: middle; }
.data-table tr:hover td { background: #f8fafd; }
.data-table .actions { display: flex; gap: 6px; }

/* ── Alerts ──────────────────────────────────────────────────────────────── */
.alert { padding: 12px 18px; border-radius: var(--radius); margin-bottom: 18px; font-size: .92rem; }
.alert-success { background: #eafaf1; border-left: 4px solid var(--success); color: #1e6e42; }
.alert-error   { background: #fdf3f2; border-left: 4px solid var(--danger);  color: #922b21; }

/* ── Login ───────────────────────────────────────────────────────────────── */
.login-wrap {
  min-height: 100vh;
  display: flex; align-items: center; justify-content: center;
  background: linear-gradient(135deg, var(--navy) 0%, var(--steel) 100%);
}
.login-box {
  background: var(--white);
  border-radius: 12px;
  padding: 40px;
  width: 380px;
  box-shadow: var(--shadow);
}
.login-logo { text-align: center; margin-bottom: 28px; }
.login-logo .logo-text { font-size: 2rem; }

/* ── Responsive ──────────────────────────────────────────────────────────── */
@media (max-width: 768px) {
  .main-nav { display: none; }
  .nav-toggle { display: block; }
  .main-nav.open { display: flex; flex-direction: column; position: absolute; top: 60px; left: 0; right: 0; background: var(--navy); padding: 12px; z-index: 200; }
  .artifact-detail { grid-template-columns: 1fr; }
  .form-grid { grid-template-columns: 1fr; }
  .admin-layout { flex-direction: column; }
  .admin-sidebar { width: 100%; padding: 12px 0; display: flex; flex-wrap: wrap; }
  .admin-sidebar a { flex: 1; min-width: 100px; text-align: center; }
  .admin-sidebar .sidebar-label { display: none; }
}