/* White Banger — shared design system (plain CSS, no build step).
   Semantic component classes, not a Tailwind utility clone — this is the
   deliberate choice for a no-build PHP app; see the project plan for why. */

:root {
  --font-body: 'Inter', system-ui, sans-serif;
  --font-heading: 'DM Sans', system-ui, sans-serif;
  --c-blue-600: #2563eb;
  --c-blue-700: #1d4ed8;
  --c-slate-900: #0f172a;
  --c-slate-800: #1e293b;
  --c-slate-500: #64748b;
  --c-slate-400: #94a3b8;
  --c-slate-200: #e2e8f0;
  --c-slate-100: #f1f5f9;
  --c-slate-50: #f8fafc;
  --c-amber-400: #fbbf24;
  --c-emerald-500: #10b981;
  --radius: 0.75rem;
  --max-width: 72rem;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--c-slate-800);
  background: #fff;
  -webkit-font-smoothing: antialiased;
}
h1, h2, h3, h4 { font-family: var(--font-heading); margin: 0; }
p { margin: 0; }
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
ul { margin: 0; padding: 0; list-style: none; }
button { font-family: inherit; cursor: pointer; }

.wrap { max-width: var(--max-width); margin: 0 auto; padding: 0 1.5rem; }
.flex { display: flex; }
.flex-col { display: flex; flex-direction: column; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-2 { gap: 0.5rem; }
.gap-3 { gap: 0.75rem; }
.gap-4 { gap: 1rem; }
.gap-6 { gap: 1.5rem; }
.grid { display: grid; gap: 1.5rem; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
@media (max-width: 768px) {
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
}

/* ── Header ── */
.site-header { position: sticky; top: 0; z-index: 40; background: rgba(255,255,255,.95); backdrop-filter: blur(6px); border-bottom: 1px solid var(--c-slate-200); }
.site-header .wrap { display: flex; align-items: center; gap: 1.5rem; padding-top: .9rem; padding-bottom: .9rem; }
.site-header .logo img { height: 34px; width: auto; }
.site-nav { display: flex; align-items: center; gap: 1.5rem; margin-left: 1rem; }
.site-nav a { font-size: .875rem; font-weight: 600; color: var(--c-slate-500); }
.site-nav a:hover { color: var(--c-blue-600); }
.site-header .login-btn { margin-left: auto; background: var(--c-blue-600); color: #fff; font-weight: 700; font-size: .875rem; padding: .5rem 1.25rem; border-radius: .5rem; }
.site-header .login-btn:hover { background: var(--c-blue-700); }
.nav-toggle { display: none; }
@media (max-width: 900px) {
  .site-nav { display: none; }
  .nav-toggle { display: block; margin-left: auto; background: none; border: none; }
}

/* ── Footer ── */
.site-footer { border-top: 1px solid var(--c-slate-200); background: var(--c-slate-900); color: #cbd5e1; }
.site-footer .wrap { padding: 3rem 1.5rem; display: grid; grid-template-columns: repeat(4, 1fr); gap: 2rem; }
@media (max-width: 768px) { .site-footer .wrap { grid-template-columns: 1fr; } }
.site-footer h5 { color: #fff; font-size: .875rem; font-weight: 700; margin-bottom: .75rem; }
.site-footer ul li { margin-bottom: .5rem; }
.site-footer a:hover { color: #fff; }
.site-footer .logo img { height: 32px; margin-bottom: .75rem; filter: brightness(0) invert(1); }
.footer-bottom { border-top: 1px solid #1e293b; }
.footer-bottom .wrap { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: .75rem; padding: 1rem 1.5rem; font-size: .75rem; color: var(--c-slate-400); }
.footer-bottom .links { display: flex; gap: 1rem; }

/* ── Hero / sections ── */
.hero-dark { background: var(--c-slate-900); color: #fff; }
.hero-dark .wrap { padding: 3.5rem 1.5rem; }
.hero-dark .eyebrow { font-size: .75rem; color: var(--c-slate-400); margin-bottom: .5rem; }
.hero-dark h1 { font-size: 2rem; font-weight: 800; line-height: 1.2; }
.hero-dark p.sub { color: #cbd5e1; font-size: .875rem; margin-top: .75rem; max-width: 36rem; }
.section { padding: 3.5rem 1.5rem; }
.section .wrap-inner { max-width: var(--max-width); margin: 0 auto; }
.section-alt { background: var(--c-slate-50); border-top: 1px solid var(--c-slate-200); border-bottom: 1px solid var(--c-slate-200); }
.eyebrow { font-size: .625rem; font-weight: 700; text-transform: uppercase; letter-spacing: .05em; color: var(--c-blue-600); margin-bottom: .25rem; }
.section-title { font-family: var(--font-heading); font-size: 1.25rem; font-weight: 800; color: var(--c-slate-900); margin-bottom: .5rem; }

/* ── Buttons ── */
.btn { display: inline-block; border-radius: .5rem; font-weight: 700; font-size: .875rem; padding: .65rem 1.25rem; border: 1px solid transparent; }
.btn-primary { background: var(--c-blue-600); color: #fff; }
.btn-primary:hover { background: var(--c-blue-700); }
.btn-ghost { border-color: rgba(255,255,255,.2); color: #fff; }
.btn-ghost:hover { background: rgba(255,255,255,.1); }
.btn-outline { border-color: var(--c-slate-200); color: var(--c-slate-800); background: #fff; }
.btn-outline:hover { background: var(--c-slate-50); }

/* ── Cards ── */
.card { border: 1px solid var(--c-slate-200); border-radius: var(--radius); background: #fff; padding: 1.25rem; }
.card:hover { box-shadow: 0 4px 16px rgba(0,0,0,.06); }

/* ── Forms ── */
.field { margin-bottom: 1rem; }
.field label { display: block; font-size: .7rem; font-weight: 700; text-transform: uppercase; letter-spacing: .03em; color: var(--c-slate-500); margin-bottom: .375rem; }
.field input, .field select, .field textarea {
  width: 100%; border: 1px solid var(--c-slate-200); border-radius: .5rem; padding: .6rem .9rem; font-size: .875rem; font-family: inherit;
}
.field input:focus, .field select:focus, .field textarea:focus { outline: none; border-color: var(--c-blue-600); }
.error-box { background: #fef2f2; border: 1px solid #fecaca; color: #b91c1c; font-size: .875rem; padding: 1rem; border-radius: .5rem; margin-bottom: 1rem; }
.success-box { background: #f0fdf4; border: 1px solid #bbf7d0; color: #15803d; font-size: .875rem; padding: 1rem; border-radius: .5rem; margin-bottom: 1rem; }

/* ── Breadcrumb ── */
.breadcrumb { font-size: .75rem; color: var(--c-slate-400); margin-bottom: .5rem; }
.breadcrumb a:hover { color: #fff; }

/* ── Admin shell ── */
.admin-shell { min-height: 100vh; background: var(--c-slate-50); display: flex; }
.admin-sidebar { width: 15rem; flex-shrink: 0; border-right: 1px solid var(--c-slate-200); background: #fff; min-height: 100vh; padding: 1.25rem; }
.admin-sidebar .brand { font-weight: 800; font-size: 1.1rem; }
.admin-sidebar .brand .accent { color: var(--c-blue-600); }
.admin-nav { display: flex; flex-direction: column; gap: .25rem; margin-top: 2rem; }
.admin-nav a { border-radius: .5rem; padding: .5rem .75rem; font-size: .875rem; font-weight: 500; color: var(--c-slate-500); }
.admin-nav a:hover, .admin-nav a.active { background: var(--c-slate-100); color: var(--c-slate-900); }
.admin-main { flex: 1; padding: 2rem; }
.admin-table { width: 100%; border-collapse: collapse; font-size: .875rem; background: #fff; border: 1px solid var(--c-slate-200); border-radius: var(--radius); overflow: hidden; }
.admin-table th { background: var(--c-slate-50); text-align: left; font-size: .7rem; text-transform: uppercase; letter-spacing: .03em; color: var(--c-slate-500); padding: .75rem 1rem; }
.admin-table td { padding: .75rem 1rem; border-top: 1px solid var(--c-slate-100); }
.pill { display: inline-block; border-radius: 999px; padding: .25rem .65rem; font-size: .7rem; font-weight: 700; }
.pill-blue { background: #dbeafe; color: #1d4ed8; }
.pill-green { background: #dcfce7; color: #15803d; }
.pill-amber { background: #fef3c7; color: #b45309; }
.pill-slate { background: var(--c-slate-100); color: var(--c-slate-500); }
.pill-red { background: #fee2e2; color: #b91c1c; }

/* ── Utility text ── */
.text-sm { font-size: .875rem; }
.text-xs { font-size: .75rem; }
.text-muted { color: var(--c-slate-500); }
.mt-2 { margin-top: .5rem; }
.mt-4 { margin-top: 1rem; }
.mt-6 { margin-top: 1.5rem; }
.mb-2 { margin-bottom: .5rem; }
.mb-4 { margin-bottom: 1rem; }
.mb-6 { margin-bottom: 1.5rem; }