/* ═══════════════════════════════════════════════════════════════
   MATRIX SPINS — Referral Program v1.0
   Dark casino theme, gold accents, premium card layouts
   ═══════════════════════════════════════════════════════════════ */

/* ── Design Tokens ─────────────────────────────────────────── */
:root {
  --gold:       #d4af37;
  --gold-light: #e8c84a;
  --gold-dark:  #b8962e;
  --bg:         #0d0f14;
  --bg-card:    rgba(26, 29, 39, 0.7);
  --bg-elev:    rgba(30, 34, 48, 0.85);
  --border:     rgba(255, 255, 255, 0.06);
  --muted:      #6b7280;
  --text:       #f0f0f5;
  --green:      #22c55e;
  --amber:      #f59e0b;
  --red:        #ef4444;
}

/* ── Referral Hero ─────────────────────────────────────────── */
.ref-hero {
  background: linear-gradient(135deg, #1a1842 0%, #0d1229 50%, #1a2040 100%);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 3rem 2rem;
  text-align: center;
  position: relative;
  overflow: hidden;
  margin-bottom: 2rem;
}

.ref-hero::before {
  content: '';
  position: absolute;
  top: -50%;
  left: 50%;
  transform: translateX(-50%);
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(212, 175, 55, 0.1) 0%, transparent 65%);
  pointer-events: none;
}

.ref-hero-icon {
  display: block;
  font-size: 3rem;
  margin-bottom: 0.75rem;
}

.ref-hero-title {
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--gold);
  margin: 0 0 0.6rem;
}

.ref-hero-subtitle {
  color: var(--muted);
  font-size: 0.95rem;
  line-height: 1.6;
  max-width: 520px;
  margin: 0 auto;
}

.ref-hero-subtitle em {
  color: var(--gold-light);
  font-style: normal;
  font-weight: 600;
}

/* ── Referral Link Section ─────────────────────────────────── */
.ref-link-section { margin-bottom: 2rem; }

.section-title {
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text);
  margin: 0 0 1rem;
}

.ref-link-row {
  display: flex;
  gap: 0.75rem;
  margin-bottom: 1rem;
}

.ref-link-input {
  flex: 1;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 0.75rem 1rem;
  color: var(--text);
  font-family: 'Inter', sans-serif;
  font-size: 0.88rem;
  outline: none;
  cursor: text;
  transition: border-color 0.2s;
}

.ref-link-input:focus { border-color: var(--gold); }

.ref-copy-btn {
  white-space: nowrap;
  padding: 0.75rem 1.5rem;
  border-radius: 10px;
  font-weight: 600;
  font-size: 0.88rem;
  background: linear-gradient(135deg, var(--gold), var(--gold-dark));
  color: #0d0f14;
  border: none;
  cursor: pointer;
  transition: transform 0.15s, box-shadow 0.2s, background 0.2s;
}

.ref-copy-btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(212, 175, 55, 0.3);
}

.ref-copy-btn.copied {
  background: linear-gradient(135deg, var(--green), #16a34a);
  color: #fff;
}

.share-row {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.share-label {
  font-size: 0.82rem;
  color: var(--muted);
  font-weight: 500;
}

.share-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--bg-elev);
  color: var(--text);
  text-decoration: none;
  transition: border-color 0.2s, background 0.2s, transform 0.15s;
}

.share-btn:hover {
  border-color: var(--gold);
  background: rgba(212, 175, 55, 0.1);
  transform: translateY(-1px);
}

.share-twitter:hover { color: #1d9bf0; }
.share-facebook:hover { color: #1877f2; }
.share-email:hover { color: var(--gold-light); }

/* ── Stats Dashboard ───────────────────────────────────────── */
.ref-stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
  margin-bottom: 2rem;
}

.ref-stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 1.5rem 1rem;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.3rem;
  transition: border-color 0.2s, transform 0.15s;
}

.ref-stat-card:hover {
  border-color: rgba(212, 175, 55, 0.25);
  transform: translateY(-2px);
}

.ref-stat-icon { font-size: 1.6rem; }

.ref-stat-value {
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--gold);
}

.ref-stat-label {
  font-size: 0.78rem;
  color: var(--muted);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* ── How It Works Steps ────────────────────────────────────── */
.ref-steps-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  margin-bottom: 2rem;
}

.ref-step-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 1.75rem 1.25rem;
  text-align: center;
  position: relative;
  transition: border-color 0.2s, transform 0.15s;
}

.ref-step-card:hover {
  border-color: rgba(212, 175, 55, 0.25);
  transform: translateY(-2px);
}

.ref-step-number {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--gold), var(--gold-dark));
  color: #0d0f14;
  font-weight: 800;
  font-size: 0.85rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 0.75rem;
}

.ref-step-icon {
  display: block;
  font-size: 2rem;
  margin-bottom: 0.6rem;
}

.ref-step-title {
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-size: 1rem;
  font-weight: 700;
  color: var(--text);
  margin: 0 0 0.4rem;
}

.ref-step-desc {
  font-size: 0.85rem;
  color: var(--muted);
  line-height: 1.55;
  margin: 0;
}

/* ── Referral Table ────────────────────────────────────────── */
.ref-table-wrap { overflow-x: auto; }

.ref-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.88rem;
}

.ref-table th {
  text-align: left;
  font-weight: 600;
  color: var(--muted);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--border);
}

.ref-table td {
  padding: 0.85rem 1rem;
  color: var(--text);
  border-bottom: 1px solid var(--border);
}

.ref-table tbody tr {
  transition: background 0.15s;
}

.ref-table tbody tr:hover {
  background: rgba(212, 175, 55, 0.04);
}

.ref-table tbody tr:last-child td {
  border-bottom: none;
}

/* Status Badges */
.ref-badge {
  display: inline-block;
  padding: 0.25rem 0.65rem;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.3px;
}

.ref-badge.completed {
  background: rgba(34, 197, 94, 0.12);
  color: var(--green);
}

.ref-badge.pending {
  background: rgba(245, 158, 11, 0.12);
  color: var(--amber);
}

.ref-badge.expired {
  background: rgba(239, 68, 68, 0.1);
  color: var(--red);
}

/* ── Terms Collapsible ─────────────────────────────────────── */
.ref-terms-section { margin-bottom: 2rem; }

.ref-terms-toggle {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  background: none;
  border: none;
  color: var(--text);
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-size: 1rem;
  font-weight: 700;
  padding: 0;
  cursor: pointer;
  text-align: left;
}

.ref-terms-chevron {
  color: var(--muted);
  transition: transform 0.25s;
}

.ref-terms-toggle[aria-expanded="true"] .ref-terms-chevron {
  transform: rotate(180deg);
}

.ref-terms-body {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease, margin 0.35s ease;
  margin-top: 0;
}

.ref-terms-body.open {
  max-height: 500px;
  margin-top: 1rem;
}

.ref-terms-body ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.ref-terms-body li {
  position: relative;
  padding: 0.45rem 0 0.45rem 1.2rem;
  font-size: 0.82rem;
  color: var(--muted);
  line-height: 1.55;
}

.ref-terms-body li::before {
  content: '•';
  position: absolute;
  left: 0;
  color: var(--gold);
  font-weight: 700;
}

.ref-terms-body a {
  color: var(--gold);
  text-decoration: none;
}

.ref-terms-body a:hover { text-decoration: underline; }

/* ── Responsive: Tablet ────────────────────────────────────── */
@media (max-width: 768px) {
  .ref-hero { padding: 2rem 1.25rem; }
  .ref-hero-title { font-size: 1.4rem; }

  .ref-stats-grid { grid-template-columns: repeat(2, 1fr); }
  .ref-steps-grid { grid-template-columns: 1fr; }

  .ref-link-row { flex-direction: column; }
  .ref-copy-btn { width: 100%; text-align: center; }
}

/* ── Responsive: Mobile ────────────────────────────────────── */
@media (max-width: 480px) {
  .ref-hero { padding: 1.5rem 1rem; border-radius: 14px; }
  .ref-hero-icon { font-size: 2.4rem; }
  .ref-hero-title { font-size: 1.2rem; }
  .ref-hero-subtitle { font-size: 0.85rem; }

  .ref-stat-card { padding: 1rem 0.75rem; border-radius: 12px; }
  .ref-stat-value { font-size: 1.3rem; }

  .ref-step-card { padding: 1.25rem 1rem; border-radius: 12px; }

  .ref-table { font-size: 0.8rem; }
  .ref-table th,
  .ref-table td { padding: 0.65rem 0.6rem; }
}

/* ── Reduced Motion ────────────────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
  .ref-stat-card,
  .ref-step-card,
  .ref-copy-btn,
  .share-btn,
  .ref-terms-chevron,
  .ref-terms-body,
  .ref-table tbody tr {
    transition: none;
  }
}