:root {
  --vf-navy: #0b1f3a;
  --vf-navy-2: #122c4d;
  --vf-blue: #1a56db;
  --vf-blue-h: #1648b8;
  --vf-accent: #e11d48;
  --vf-gold: #d4a017;
  --vf-bg: #f3f5f8;
  --vf-card: #ffffff;
  --vf-text: #1f2937;
  --vf-muted: #6b7280;
  --vf-border: #e5e7eb;
  --vf-radius: 12px;
  --vf-shadow: 0 8px 30px rgba(11,31,58,.08);
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  color: var(--vf-text);
  background: var(--vf-bg);
  line-height: 1.5;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
.container { width: min(1200px, 92%); margin-inline: auto; }
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .5rem;
  border: 0; border-radius: 10px; padding: .7rem 1.15rem; font-weight: 600;
  cursor: pointer; transition: .15s ease; font-size: .95rem;
}
.btn-primary { background: var(--vf-blue); color: #fff; }
.btn-primary:hover { background: var(--vf-blue-h); }
.btn-accent { background: var(--vf-accent); color: #fff; }
.btn-accent:hover { filter: brightness(1.05); }
.btn-outline { background: transparent; border: 1px solid rgba(255,255,255,.35); color: #fff; }
.btn-outline-dark { background: #fff; border: 1px solid var(--vf-border); color: var(--vf-text); }
.btn-outline-dark:hover { border-color: var(--vf-blue); color: var(--vf-blue); }
.btn-sm { padding: .45rem .8rem; font-size: .85rem; }
.badge {
  display: inline-block; padding: .2rem .55rem; border-radius: 999px;
  font-size: .72rem; font-weight: 700; letter-spacing: .02em;
}
.badge-green { background: #dcfce7; color: #166534; }
.badge-amber { background: #fef3c7; color: #92400e; }
.badge-red { background: #fee2e2; color: #991b1b; }
.badge-blue { background: #dbeafe; color: #1e40af; }

/* Top bar + header (SBT-like) */
.topbar {
  background: #071627; color: #cbd5e1; font-size: .8rem; padding: .45rem 0;
}
.topbar .container { display: flex; justify-content: space-between; gap: 1rem; flex-wrap: wrap; }
.site-header {
  background: linear-gradient(180deg, var(--vf-navy) 0%, var(--vf-navy-2) 100%);
  color: #fff; position: sticky; top: 0; z-index: 50; box-shadow: 0 2px 16px rgba(0,0,0,.2);
}
.site-header .row {
  display: flex; align-items: center; justify-content: space-between; gap: 1rem; padding: .9rem 0;
}
.brand { display: flex; align-items: center; gap: .7rem; font-weight: 800; font-size: 1.15rem; letter-spacing: .02em; }
.brand-mark {
  width: 36px; height: 36px; border-radius: 10px;
  background: linear-gradient(135deg, var(--vf-blue), #60a5fa);
  display: grid; place-items: center; font-size: .9rem;
}
.nav { display: flex; gap: 1.1rem; align-items: center; flex-wrap: wrap; }
.nav a { color: #e5eefc; font-size: .92rem; font-weight: 500; opacity: .92; }
.nav a:hover, .nav a.active { color: #fff; opacity: 1; }
.header-actions { display: flex; gap: .55rem; align-items: center; }

/* Hero */
.hero {
  background:
    radial-gradient(1200px 500px at 80% -10%, rgba(26,86,219,.35), transparent 60%),
    linear-gradient(135deg, #0b1f3a 0%, #14345f 45%, #0f2748 100%);
  color: #fff; padding: 3.2rem 0 2.5rem; position: relative; overflow: hidden;
}
.hero h1 { font-size: clamp(1.8rem, 4vw, 2.8rem); line-height: 1.15; margin: 0 0 .75rem; font-weight: 800; }
.hero p.lead { color: #c7d7f0; max-width: 560px; margin: 0 0 1.5rem; font-size: 1.05rem; }
.search-panel {
  background: #fff; color: var(--vf-text); border-radius: 16px; padding: 1rem;
  box-shadow: var(--vf-shadow); display: grid; gap: .75rem;
  grid-template-columns: repeat(6, minmax(0, 1fr));
}
.search-panel label { display: block; font-size: .72rem; color: var(--vf-muted); margin-bottom: .25rem; font-weight: 600; text-transform: uppercase; letter-spacing: .04em; }
.search-panel select, .search-panel input {
  width: 100%; border: 1px solid var(--vf-border); border-radius: 10px; padding: .65rem .7rem; font-size: .92rem; background: #fff;
}
.search-panel .span-btn { display: flex; align-items: end; }
@media (max-width: 960px) {
  .search-panel { grid-template-columns: 1fr 1fr; }
  .nav { display: none; }
}

.section { padding: 2.75rem 0; }
.section-title { font-size: 1.45rem; font-weight: 800; margin: 0 0 .35rem; color: var(--vf-navy); }
.section-sub { color: var(--vf-muted); margin: 0 0 1.25rem; }

.grid-brands, .grid-cards, .grid-stats {
  display: grid; gap: 1rem;
}
.grid-brands { grid-template-columns: repeat(auto-fill, minmax(130px, 1fr)); }
.grid-cards { grid-template-columns: repeat(auto-fill, minmax(250px, 1fr)); }
.grid-stats { grid-template-columns: repeat(4, minmax(0,1fr)); }
@media (max-width: 800px) { .grid-stats { grid-template-columns: 1fr 1fr; } }

.brand-tile, .card, .stat-card, .body-tile {
  background: var(--vf-card); border: 1px solid var(--vf-border); border-radius: var(--vf-radius);
  transition: .15s ease;
}
.brand-tile { padding: 1rem; text-align: center; font-weight: 700; color: var(--vf-navy); }
.brand-tile:hover, .card:hover, .body-tile:hover { transform: translateY(-2px); box-shadow: var(--vf-shadow); border-color: #c7d2fe; }
.brand-tile span { display: block; color: var(--vf-muted); font-size: .78rem; font-weight: 500; margin-top: .2rem; }
.body-tile { padding: 1.1rem; text-align: center; font-weight: 700; }
.card { overflow: hidden; }
.card-img {
  height: 160px; background: linear-gradient(135deg, #1e3a5f, #3b82f6);
  display: grid; place-items: center; color: #fff; font-weight: 700; letter-spacing: .04em;
}
.card-body { padding: 1rem; }
.card-body h3 { margin: 0 0 .35rem; font-size: 1rem; color: var(--vf-navy); }
.price { color: var(--vf-accent); font-weight: 800; font-size: 1.1rem; }
.meta { color: var(--vf-muted); font-size: .82rem; margin-top: .35rem; }
.stat-card { padding: 1.15rem 1.25rem; }
.stat-card .label { color: var(--vf-muted); font-size: .82rem; }
.stat-card .value { font-size: 1.55rem; font-weight: 800; color: var(--vf-navy); margin-top: .2rem; }

.cta-band {
  background: linear-gradient(90deg, #0b1f3a, #1a56db); color: #fff;
  border-radius: 18px; padding: 1.75rem; display: flex; justify-content: space-between; gap: 1rem; flex-wrap: wrap; align-items: center;
}

.site-footer {
  background: #071627; color: #94a3b8; padding: 2.5rem 0 1.5rem; margin-top: 2rem; font-size: .9rem;
}
.site-footer a { color: #cbd5e1; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 1.5rem; margin-bottom: 1.5rem; }
@media (max-width: 800px) { .footer-grid { grid-template-columns: 1fr 1fr; } }
.footer-grid h4 { color: #fff; margin: 0 0 .75rem; font-size: .95rem; }
.footer-grid ul { list-style: none; padding: 0; margin: 0; }
.footer-grid li { margin: .4rem 0; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.08); padding-top: 1rem; display: flex; justify-content: space-between; gap: 1rem; flex-wrap: wrap; }

/* Auth */
.auth-wrap {
  min-height: 100vh; display: grid; place-items: center; padding: 1.5rem;
  background:
    radial-gradient(800px 400px at 10% 0%, rgba(26,86,219,.25), transparent 50%),
    linear-gradient(160deg, #0b1f3a, #122c4d 40%, #f3f5f8 40%);
}
.auth-card {
  width: min(420px, 100%); background: #fff; border-radius: 16px; padding: 1.75rem;
  box-shadow: var(--vf-shadow); border: 1px solid var(--vf-border);
}
.auth-card h1 { margin: 0 0 .25rem; font-size: 1.35rem; color: var(--vf-navy); }
.form-group { margin-bottom: .9rem; }
.form-group label { display: block; font-size: .82rem; font-weight: 600; color: #374151; margin-bottom: .3rem; }
.form-group input, .form-group select, .form-group textarea {
  width: 100%; border: 1px solid var(--vf-border); border-radius: 10px; padding: .7rem .75rem; font-size: .95rem;
}
.form-group input:focus, .form-group select:focus { outline: 2px solid #bfdbfe; border-color: #93c5fd; }
.alert { padding: .75rem .9rem; border-radius: 10px; font-size: .9rem; margin-bottom: 1rem; }
.alert-error { background: #fef2f2; color: #991b1b; border: 1px solid #fecaca; }
.alert-ok { background: #f0fdf4; color: #166534; border: 1px solid #bbf7d0; }
.alert-warn { background: #fffbeb; color: #92400e; border: 1px solid #fde68a; }

/* Portal */
.portal-shell { min-height: 100vh; display: flex; background: var(--vf-bg); }
.portal-side {
  width: 260px; background: var(--vf-navy); color: #cbd5e1; display: flex; flex-direction: column;
  position: sticky; top: 0; height: 100vh;
}
.portal-side .brand { padding: 1.1rem 1.2rem; border-bottom: 1px solid rgba(255,255,255,.08); color: #fff; }
.portal-nav { padding: .85rem; display: flex; flex-direction: column; gap: .25rem; flex: 1; }
.portal-nav a {
  padding: .65rem .8rem; border-radius: 10px; color: #dbe7f8; font-size: .9rem; font-weight: 500;
}
.portal-nav a:hover, .portal-nav a.active { background: rgba(255,255,255,.08); color: #fff; }
.portal-side .foot { padding: 1rem; border-top: 1px solid rgba(255,255,255,.08); font-size: .78rem; color: #94a3b8; }
.portal-main { flex: 1; min-width: 0; display: flex; flex-direction: column; }
.portal-top {
  background: #fff; border-bottom: 1px solid var(--vf-border);
  padding: .85rem 1.25rem; display: flex; justify-content: space-between; align-items: center; gap: 1rem;
}
.portal-top h1 { margin: 0; font-size: 1.1rem; color: var(--vf-navy); }
.portal-content { padding: 1.25rem; }
@media (max-width: 860px) {
  .portal-side { display: none; }
}
.table { width: 100%; border-collapse: collapse; background: #fff; border-radius: 12px; overflow: hidden; border: 1px solid var(--vf-border); }
.table th, .table td { padding: .75rem .9rem; text-align: left; border-bottom: 1px solid var(--vf-border); font-size: .9rem; }
.table th { background: #f8fafc; color: #64748b; font-weight: 600; font-size: .78rem; text-transform: uppercase; letter-spacing: .03em; }