/**
 * PUBG-inspired tactical UI — 机器码续费 / 后台
 * 主色：战术暗绿 + 警示金
 */

@import url('https://fonts.googleapis.com/css2?family=Rajdhani:wght@400;600;700&family=Bebas+Neue&display=swap');

:root {
  --pubg-black: #0a0b0d;
  --pubg-void: #12151a;
  --pubg-panel: #1a1f28;
  --pubg-border: #2a3344;
  --pubg-olive: #3d4a36;
  --pubg-mud: #6b5c4a;
  --pubg-gold: #d4af37;
  --pubg-amber: #e8a838;
  --pubg-blood: #c41e1e;
  --pubg-mist: #8a95a8;
  --pubg-white: #e8ecf1;
  --pubg-grid: rgba(212, 175, 55, 0.06);
  --font-ui: 'Rajdhani', 'Segoe UI', system-ui, sans-serif;
  --font-display: 'Bebas Neue', var(--font-ui);
  --radius: 4px;
  --shadow: 0 8px 32px rgba(0, 0, 0, 0.45);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  font-size: 16px;
}

body.pubg {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font-ui);
  color: var(--pubg-white);
  background: var(--pubg-black);
  background-image:
    linear-gradient(135deg, rgba(61, 74, 54, 0.15) 0%, transparent 50%),
    linear-gradient(var(--pubg-grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--pubg-grid) 1px, transparent 1px);
  background-size: 100% 100%, 24px 24px, 24px 24px;
  line-height: 1.5;
}

body.pubg::before {
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
  background: radial-gradient(ellipse 80% 50% at 50% 0%, rgba(212, 175, 55, 0.08), transparent);
  z-index: 0;
}

.pubg-wrap {
  position: relative;
  z-index: 1;
  max-width: 720px;
  margin: 0 auto;
  padding: 2rem 1.25rem 3rem;
}

.pubg-header {
  text-align: center;
  margin-bottom: 2rem;
}

.pubg-badge {
  display: inline-block;
  font-family: var(--font-display);
  letter-spacing: 0.25em;
  font-size: 0.7rem;
  color: var(--pubg-gold);
  border: 1px solid var(--pubg-gold);
  padding: 0.35rem 0.75rem;
  margin-bottom: 0.75rem;
  clip-path: polygon(8px 0, 100% 0, 100% calc(100% - 8px), calc(100% - 8px) 100%, 0 100%, 0 8px);
}

.pubg-title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 8vw, 3.25rem);
  margin: 0;
  letter-spacing: 0.06em;
  color: var(--pubg-white);
  text-shadow: 0 0 40px rgba(212, 175, 55, 0.25);
}

.pubg-sub {
  color: var(--pubg-mist);
  margin: 0.5rem 0 0;
  font-size: 1rem;
}

.pubg-card {
  background: var(--pubg-panel);
  border: 1px solid var(--pubg-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 1.75rem;
  position: relative;
  overflow: hidden;
}

.pubg-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--pubg-olive), var(--pubg-gold), var(--pubg-olive));
}

.pubg-label {
  display: block;
  font-weight: 600;
  color: var(--pubg-amber);
  margin-bottom: 0.5rem;
  text-transform: uppercase;
  font-size: 0.85rem;
  letter-spacing: 0.08em;
}

.pubg-input,
.pubg-select {
  width: 100%;
  padding: 0.85rem 1rem;
  font-family: var(--font-ui);
  font-size: 1rem;
  color: var(--pubg-white);
  background: var(--pubg-void);
  border: 1px solid var(--pubg-border);
  border-radius: var(--radius);
  outline: none;
  transition: border-color 0.15s, box-shadow 0.15s;
}

.pubg-input:focus,
.pubg-select:focus {
  border-color: var(--pubg-gold);
  box-shadow: 0 0 0 3px rgba(212, 175, 55, 0.15);
}

.pubg-row {
  margin-bottom: 1.25rem;
}

.pubg-row:last-child {
  margin-bottom: 0;
}

.pubg-actions {
  margin-top: 1.5rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  align-items: center;
}

.pubg-btn {
  font-family: var(--font-ui);
  font-weight: 700;
  font-size: 1rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 0.9rem 1.75rem;
  border: none;
  border-radius: var(--radius);
  cursor: pointer;
  transition: transform 0.1s, filter 0.15s;
  clip-path: polygon(0 0, calc(100% - 12px) 0, 100% 12px, 100% 100%, 12px 100%, 0 calc(100% - 12px));
}

.pubg-btn:active {
  transform: scale(0.98);
}

.pubg-btn--primary {
  background: linear-gradient(180deg, var(--pubg-amber), #b5781a);
  color: var(--pubg-black);
  box-shadow: 0 4px 20px rgba(232, 168, 56, 0.35);
}

.pubg-btn--primary:hover {
  filter: brightness(1.06);
}

.pubg-btn--ghost {
  background: transparent;
  color: var(--pubg-gold);
  border: 1px solid var(--pubg-gold);
}

.pubg-hint {
  font-size: 0.9rem;
  color: var(--pubg-mist);
  margin-top: 1rem;
}

.pubg-alert {
  padding: 1rem 1.25rem;
  border-radius: var(--radius);
  margin-bottom: 1.25rem;
  border: 1px solid;
}

.pubg-alert--error {
  background: rgba(196, 30, 30, 0.12);
  border-color: var(--pubg-blood);
  color: #f0a8a8;
}

.pubg-alert--ok {
  background: rgba(61, 74, 54, 0.35);
  border-color: var(--pubg-olive);
  color: #c8dcb8;
}

.pubg-price {
  font-family: var(--font-display);
  font-size: 2rem;
  color: var(--pubg-gold);
  letter-spacing: 0.05em;
}

.pubg-meta {
  display: grid;
  gap: 0.35rem;
  font-size: 0.95rem;
  color: var(--pubg-mist);
}

/* ----- Admin layout ----- */
body.pubg-admin {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font-ui);
  color: var(--pubg-white);
  background: var(--pubg-black);
}

.pubg-admin-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.5rem;
  background: var(--pubg-panel);
  border-bottom: 1px solid var(--pubg-border);
}

.pubg-admin-brand {
  font-family: var(--font-display);
  font-size: 1.5rem;
  letter-spacing: 0.08em;
  color: var(--pubg-gold);
}

.pubg-admin-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.pubg-admin-nav a {
  color: var(--pubg-mist);
  text-decoration: none;
  padding: 0.4rem 0.75rem;
  border: 1px solid transparent;
  border-radius: var(--radius);
  text-transform: uppercase;
  font-size: 0.8rem;
  letter-spacing: 0.06em;
}

.pubg-admin-nav a:hover,
.pubg-admin-nav a.is-active {
  color: var(--pubg-gold);
  border-color: var(--pubg-border);
  background: var(--pubg-void);
}

.pubg-admin-body {
  padding: 1.5rem;
  max-width: 1200px;
  margin: 0 auto;
}

.pubg-table-wrap {
  overflow-x: auto;
  border: 1px solid var(--pubg-border);
  border-radius: var(--radius);
  background: var(--pubg-panel);
}

.pubg-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.95rem;
}

.pubg-table th,
.pubg-table td {
  padding: 0.75rem 1rem;
  text-align: left;
  border-bottom: 1px solid var(--pubg-border);
}

.pubg-table th {
  background: var(--pubg-void);
  color: var(--pubg-amber);
  text-transform: uppercase;
  font-size: 0.75rem;
  letter-spacing: 0.08em;
}

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

.pubg-tag {
  display: inline-block;
  padding: 0.2rem 0.5rem;
  border-radius: 2px;
  font-size: 0.75rem;
  text-transform: uppercase;
}

.pubg-tag--pending {
  background: rgba(232, 168, 56, 0.2);
  color: var(--pubg-amber);
}

.pubg-tag--paid {
  background: rgba(61, 74, 54, 0.5);
  color: #a8d4a0;
}

.pubg-tag--fail {
  background: rgba(196, 30, 30, 0.2);
  color: #f0a8a8;
}

.pubg-form-grid {
  display: grid;
  gap: 1rem;
  max-width: 480px;
}

@media (min-width: 640px) {
  .pubg-form-grid--2 {
    grid-template-columns: 1fr 1fr;
  }
}