/* ═══════════════════════════════════════════
   ARBFast v4 — Premium Neon Cyan Dark Theme
   Shared across payment page, status page,
   and admin dashboard.
   ═══════════════════════════════════════════ */

@import url("https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swap");

:root {
  --bg: #0a0e1a;
  --bg-card: #111827;
  --bg-card-hover: #1a2235;
  --bg-input: #0d1220;
  --border: #1e293b;
  --border-focus: #00d4ff;
  --cyan: #00d4ff;
  --cyan-dim: #00a3cc;
  --cyan-glow: rgba(0, 212, 255, 0.15);
  --green: #00e676;
  --green-bg: rgba(0, 230, 118, 0.1);
  --red: #ff4757;
  --red-bg: rgba(255, 71, 87, 0.1);
  --yellow: #ffd32a;
  --yellow-bg: rgba(255, 211, 42, 0.1);
  --text: #e8eaed;
  --text-dim: #8b95a5;
  --text-muted: #4a5568;
  --radius: 12px;
  --radius-sm: 8px;
  --shadow: 0 4px 24px rgba(0, 0, 0, 0.4);
  --transition: 0.2s ease;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

body {
  font-family: "Inter", -apple-system, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  line-height: 1.6;
}

/* ── Layout ── */
.container {
  max-width: 800px;
  margin: 0 auto;
  padding: 24px 16px;
}

.container-wide {
  max-width: 1200px;
  margin: 0 auto;
  padding: 24px 16px;
}

/* ── Header ── */
.site-header {
  text-align: center;
  padding: 40px 0 24px;
}

.site-header h1 {
  font-size: 28px;
  font-weight: 800;
  background: linear-gradient(135deg, var(--cyan), #7b61ff);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 6px;
}

.site-header p {
  color: var(--text-dim);
  font-size: 14px;
}

/* ── Cards ── */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  margin-bottom: 16px;
  box-shadow: var(--shadow);
}

.card:hover {
  border-color: rgba(0, 212, 255, 0.2);
}

.card-title {
  font-size: 14px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--cyan);
  margin-bottom: 16px;
}

/* ── Plan Cards ── */
.plans-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-bottom: 24px;
}

.plan-card {
  background: var(--bg-card);
  border: 2px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  text-align: center;
  cursor: pointer;
  transition: var(--transition);
  position: relative;
}

.plan-card:hover {
  border-color: var(--cyan-dim);
  transform: translateY(-2px);
}

.plan-card.selected {
  border-color: var(--cyan);
  background: var(--cyan-glow);
  box-shadow: 0 0 20px rgba(0, 212, 255, 0.15);
}

.plan-card .plan-name {
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text-dim);
  margin-bottom: 8px;
}

.plan-card .plan-price {
  font-size: 32px;
  font-weight: 800;
  color: var(--text);
  margin-bottom: 4px;
}

.plan-card .plan-price span {
  font-size: 16px;
  font-weight: 400;
  color: var(--text-dim);
}

.plan-card .plan-duration {
  font-size: 13px;
  color: var(--text-dim);
}

.plan-card .plan-limit {
  font-size: 11px;
  color: var(--cyan);
  margin-top: 8px;
  padding: 4px 8px;
  background: var(--cyan-glow);
  border-radius: 20px;
  display: inline-block;
}

.plan-popular {
  position: absolute;
  top: -10px;
  right: 12px;
  background: linear-gradient(135deg, var(--cyan), #7b61ff);
  color: #fff;
  font-size: 10px;
  font-weight: 700;
  padding: 2px 10px;
  border-radius: 20px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* ── Forms ── */
.form-group {
  margin-bottom: 16px;
}

.form-group label {
  display: block;
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text-dim);
  margin-bottom: 6px;
}

input[type="text"],
input[type="email"],
input[type="number"],
input[type="password"],
select,
textarea {
  width: 100%;
  padding: 10px 14px;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text);
  font-family: inherit;
  font-size: 14px;
  transition: var(--transition);
  outline: none;
}

input:focus, select:focus, textarea:focus {
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px var(--cyan-glow);
}

input::placeholder { color: var(--text-muted); }

input[type="file"] {
  padding: 10px;
  background: var(--bg-input);
  border: 2px dashed var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-dim);
  cursor: pointer;
  width: 100%;
}

input[type="file"]:hover {
  border-color: var(--cyan-dim);
}

/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  border: none;
  border-radius: var(--radius-sm);
  font-family: inherit;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
}

.btn-primary {
  background: linear-gradient(135deg, var(--cyan), var(--cyan-dim));
  color: #0a0e1a;
  width: 100%;
}

.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(0, 212, 255, 0.3);
}

.btn-primary:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
}

.btn-sm {
  padding: 6px 14px;
  font-size: 12px;
  width: auto;
}

.btn-green { background: var(--green); color: #0a0e1a; }
.btn-red { background: var(--red); color: #fff; }
.btn-outline {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-dim);
}
.btn-outline:hover { border-color: var(--cyan); color: var(--text); }

/* ── UPI Section ── */
.upi-section {
  text-align: center;
  padding: 20px;
}

.upi-qr {
  width: 200px;
  height: 200px;
  background: #fff;
  border-radius: var(--radius);
  margin: 16px auto;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 12px;
}

.upi-qr img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.upi-id {
  font-size: 16px;
  font-weight: 700;
  color: var(--cyan);
  padding: 8px 16px;
  background: var(--cyan-glow);
  border-radius: 20px;
  display: inline-block;
  margin-top: 8px;
  cursor: pointer;
}

.upi-id:hover::after {
  content: " 📋 Copy";
  font-size: 11px;
  color: var(--text-dim);
}

/* ── Status Badges ── */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 3px 10px;
  border-radius: 20px;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.badge-pending { background: var(--yellow-bg); color: var(--yellow); }
.badge-approved { background: var(--green-bg); color: var(--green); }
.badge-rejected { background: var(--red-bg); color: var(--red); }
.badge-active { background: var(--green-bg); color: var(--green); }
.badge-expired { background: var(--red-bg); color: var(--red); }

/* ── Table ── */
.data-table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  font-size: 13px;
}

.data-table th {
  text-align: left;
  padding: 10px 12px;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text-dim);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  background: var(--bg-card);
}

.data-table td {
  padding: 10px 12px;
  border-bottom: 1px solid rgba(30, 41, 59, 0.5);
  vertical-align: middle;
}

.data-table tr:hover td {
  background: var(--bg-card-hover);
}

/* ── API Key Display ── */
.api-key-display {
  font-family: "Courier New", monospace;
  font-size: 15px;
  font-weight: 700;
  color: var(--cyan);
  background: var(--bg-input);
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  letter-spacing: 1px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}

.api-key-display .copy-btn {
  background: var(--cyan-glow);
  border: 1px solid var(--cyan-dim);
  color: var(--cyan);
  padding: 4px 12px;
  border-radius: 6px;
  cursor: pointer;
  font-size: 12px;
  font-weight: 600;
  transition: var(--transition);
}

.api-key-display .copy-btn:hover {
  background: var(--cyan);
  color: var(--bg);
}

/* ── Alerts ── */
.alert {
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  font-size: 13px;
  margin-bottom: 16px;
  display: none;
}

.alert.show { display: block; }
.alert-success { background: var(--green-bg); color: var(--green); border: 1px solid rgba(0, 230, 118, 0.2); }
.alert-error { background: var(--red-bg); color: var(--red); border: 1px solid rgba(255, 71, 87, 0.2); }
.alert-warning { background: var(--yellow-bg); color: var(--yellow); border: 1px solid rgba(255, 211, 42, 0.2); }

/* ── Tabs (Admin) ── */
.tab-nav {
  display: flex;
  gap: 2px;
  margin-bottom: 20px;
  background: var(--bg-input);
  border-radius: var(--radius-sm);
  padding: 3px;
}

.tab-btn {
  flex: 1;
  padding: 8px 16px;
  border: none;
  background: transparent;
  color: var(--text-dim);
  font-family: inherit;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  border-radius: 6px;
  transition: var(--transition);
}

.tab-btn.active {
  background: var(--cyan);
  color: var(--bg);
}

.tab-content { display: none; }
.tab-content.active { display: block; }

/* ── Stats Cards ── */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  margin-bottom: 20px;
}

.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 16px;
  text-align: center;
}

.stat-card .stat-value {
  font-size: 28px;
  font-weight: 800;
  color: var(--cyan);
}

.stat-card .stat-label {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text-dim);
  margin-top: 4px;
}

/* ── Screenshot Modal ── */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.8);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 1000;
}

.modal-overlay.show { display: flex; }

.modal-content {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  max-width: 500px;
  width: 90%;
  max-height: 80vh;
  overflow-y: auto;
}

.modal-content img {
  width: 100%;
  border-radius: var(--radius-sm);
  margin: 12px 0;
}

.modal-close {
  float: right;
  background: none;
  border: none;
  color: var(--text-dim);
  font-size: 20px;
  cursor: pointer;
}

/* ── Loading Spinner ── */
.spinner {
  width: 20px;
  height: 20px;
  border: 2px solid var(--border);
  border-top-color: var(--cyan);
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
  display: inline-block;
}

@keyframes spin { to { transform: rotate(360deg); } }

/* ── Responsive ── */
@media (max-width: 768px) {
  .plans-grid { grid-template-columns: 1fr; }

  /* Stats grid: 2 columns on mobile for 5 cards */
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 8px;
  }
  .stat-card { padding: 12px 8px; }
  .stat-card .stat-value { font-size: 22px; }
  .stat-card .stat-label { font-size: 10px; }

  /* Tab nav: wrap on mobile, smaller text */
  .tab-nav {
    flex-wrap: wrap;
    gap: 4px;
    padding: 4px;
  }
  .tab-btn {
    flex: 0 1 auto;
    padding: 8px 10px;
    font-size: 11px;
    white-space: nowrap;
  }

  /* Data tables: card layout on mobile */
  .data-table { font-size: 11px; }
  .data-table thead { display: none; }
  .data-table tbody tr {
    display: block;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    margin-bottom: 10px;
    padding: 10px;
    background: var(--bg-card);
  }
  .data-table td {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 5px 4px;
    border-bottom: 1px solid rgba(30, 41, 59, 0.3);
    text-align: right;
    gap: 8px;
    word-break: break-all;
  }
  .data-table td::before {
    content: attr(data-label);
    font-weight: 700;
    font-size: 10px;
    text-transform: uppercase;
    color: var(--text-dim);
    text-align: left;
    flex-shrink: 0;
    min-width: 70px;
  }
  .data-table td:last-child { border-bottom: none; }
  .data-table tr:hover td { background: transparent; }

  /* Buttons: larger tap targets on mobile */
  .btn-sm {
    padding: 6px 10px;
    font-size: 11px;
    min-height: 32px;
  }

  /* Modal: full width on mobile */
  .modal-content {
    width: 95%;
    max-height: 90vh;
    padding: 16px;
  }

  /* Container: less padding on mobile */
  .container-wide { padding: 12px 8px; }
  .site-header { padding: 20px 0 16px; }
  .site-header h1 { font-size: 22px; }

  /* Card overflow: scroll for any remaining wide content */
  .card { overflow-x: auto; }

  /* Generate key form: full width */
  #tab-generate .card { max-width: 100% !important; }
}

/* ── Scrollbar ── */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-muted); }

/* ── Grid Helpers ── */
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.mt-16 { margin-top: 16px; }
.mb-16 { margin-bottom: 16px; }
.text-center { text-align: center; }
.text-dim { color: var(--text-dim); }
.text-cyan { color: var(--cyan); }
.text-sm { font-size: 12px; }
.hidden { display: none !important; }