/* ==========================================================================
   GoBux - shared stylesheet
   ========================================================================== */

:root {
  --bg: #0d0f1a;
  --bg-alt: #141827;
  --card: #1b2032;
  --border: #2a3049;
  --text: #e8eaf2;
  --text-muted: #a3a9c2;
  --accent: #4fd1c5;
  --accent-2: #a389f4;
  --warn-bg: #3a2410;
  --warn-border: #f5a623;
  --danger-bg: #3a1414;
  --danger-border: #f55353;
  --radius: 12px;
  --max-width: 1120px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
}

img { max-width: 100%; display: block; }

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 20px;
}

/* ---------- Header ---------- */
.site-header {
  background: rgba(13, 15, 26, 0.95);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(6px);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
}

.logo {
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--text);
  letter-spacing: 0.5px;
}
.logo span { color: var(--accent); }
.logo:hover { text-decoration: none; }

.main-nav {
  display: flex;
  gap: 24px;
}

.main-nav a {
  color: var(--text-muted);
  font-weight: 600;
  font-size: 0.95rem;
}

.main-nav a:hover,
.main-nav a.active {
  color: var(--accent);
  text-decoration: none;
}

.nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--border);
  color: var(--text);
  font-size: 1.3rem;
  border-radius: 8px;
  padding: 4px 10px;
  cursor: pointer;
}

/* ---------- Hero ---------- */
.hero {
  padding: 72px 0 48px;
  background: radial-gradient(circle at top left, rgba(79, 209, 197, 0.12), transparent 55%),
              radial-gradient(circle at bottom right, rgba(163, 137, 244, 0.12), transparent 55%);
  text-align: center;
}

.hero h1 {
  font-size: clamp(2rem, 4vw, 3rem);
  margin: 0 0 16px;
}

.hero .highlight {
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero p.lead {
  max-width: 700px;
  margin: 0 auto 28px;
  color: var(--text-muted);
  font-size: 1.1rem;
}

.hero-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-block;
  padding: 12px 24px;
  border-radius: 999px;
  font-weight: 700;
  font-size: 0.95rem;
  cursor: pointer;
  border: 2px solid transparent;
}

.btn-primary {
  background: var(--accent);
  color: #06231f;
}
.btn-primary:hover { background: #6fe0d4; text-decoration: none; }

.btn-outline {
  background: transparent;
  border-color: var(--border);
  color: var(--text);
}
.btn-outline:hover { border-color: var(--accent); color: var(--accent); text-decoration: none; }

/* ---------- Callout boxes ---------- */
.callout {
  border-radius: var(--radius);
  padding: 18px 20px;
  margin: 24px 0;
  border: 1px solid var(--border);
}

.callout-warning {
  background: var(--warn-bg);
  border-color: var(--warn-border);
}

.callout-danger {
  background: var(--danger-bg);
  border-color: var(--danger-border);
}

.callout h3 { margin-top: 0; }

/* ---------- Sections ---------- */
section { padding: 56px 0; }
section h2 {
  font-size: 1.9rem;
  margin-bottom: 8px;
  text-align: center;
}
.section-sub {
  text-align: center;
  color: var(--text-muted);
  max-width: 640px;
  margin: 0 auto 40px;
}

/* ---------- Card grid ---------- */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 24px;
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
}

.card h3 {
  margin-top: 0;
  display: flex;
  align-items: center;
  gap: 10px;
}

.card .tag {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--accent);
  margin-bottom: 8px;
}

/* ---------- Article / detail pages ---------- */
.article {
  padding: 48px 0 72px;
}
.article h2 {
  text-align: left;
  margin-top: 48px;
  border-bottom: 2px solid var(--border);
  padding-bottom: 10px;
}
.article h2:first-of-type { margin-top: 0; }
.article .lead {
  color: var(--text-muted);
  font-size: 1.1rem;
}
.article ul, .article ol { padding-left: 22px; }
.article li { margin-bottom: 8px; }

.toc {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px 24px;
  margin: 32px 0;
}
.toc h4 { margin-top: 0; }
.toc ul { margin: 0; }

/* ---------- Checklist ---------- */
.checklist-group {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px 24px;
  margin-bottom: 24px;
}
.checklist-group h3 { margin-top: 0; }

.checklist-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 8px 0;
  border-bottom: 1px dashed var(--border);
}
.checklist-item:last-child { border-bottom: none; }
.checklist-item input[type="checkbox"] {
  margin-top: 4px;
  width: 18px;
  height: 18px;
  accent-color: var(--accent);
}
.checklist-item label { cursor: pointer; }
.checklist-item.checked label {
  color: var(--text-muted);
  text-decoration: line-through;
}

/* ---------- Table ---------- */
table {
  width: 100%;
  border-collapse: collapse;
  margin: 20px 0;
}
th, td {
  border: 1px solid var(--border);
  padding: 10px 14px;
  text-align: left;
}
th { background: var(--bg-alt); }

/* ---------- Footer ---------- */
.site-footer {
  background: var(--bg-alt);
  border-top: 1px solid var(--border);
  margin-top: 40px;
}
.footer-inner {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 24px;
  padding: 48px 20px 24px;
}
.footer-col h4 {
  color: var(--text);
  margin-bottom: 12px;
}
.footer-col a {
  display: block;
  color: var(--text-muted);
  margin-bottom: 8px;
  font-size: 0.92rem;
}
.footer-col a:hover { color: var(--accent); }
.footer-col p.muted { color: var(--text-muted); font-size: 0.9rem; }

.footer-bottom {
  border-top: 1px solid var(--border);
  padding: 20px;
  font-size: 0.8rem;
  color: var(--text-muted);
  text-align: center;
}

/* ---------- Cookie banner ---------- */
.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: var(--bg-alt);
  border-top: 1px solid var(--border);
  padding: 16px 20px;
  display: none;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  z-index: 100;
}
.cookie-banner.visible { display: flex; }
.cookie-banner p { margin: 0; font-size: 0.9rem; color: var(--text-muted); flex: 1 1 320px; }
.cookie-actions { display: flex; gap: 10px; flex-wrap: wrap; }
.cookie-banner button {
  background: var(--accent);
  border: none;
  padding: 10px 20px;
  border-radius: 999px;
  font-weight: 700;
  cursor: pointer;
  white-space: nowrap;
}
.cookie-banner .btn-outline-sm {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text);
}
.cookie-banner .btn-outline-sm:hover { border-color: var(--accent); color: var(--accent); }

/* ---------- Responsive ---------- */
@media (max-width: 860px) {
  .footer-inner { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 720px) {
  .main-nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--bg);
    border-bottom: 1px solid var(--border);
    flex-direction: column;
    padding: 16px 20px;
    display: none;
  }
  .main-nav.open { display: flex; }
  .nav-toggle { display: block; }
  .footer-inner { grid-template-columns: 1fr; }
}