/* =========================================================
   OpBattle - PUBG Tournament Theme
   Matches the established OpBattle brand: near-black background,
   neon green + cyan gradient accents.
   ========================================================= */
:root {
  --bg: #050505;
  --bg-alt: #101214;
  --card: #111315;
  --card-border: #23262a;
  --text: #f2f4f3;
  --muted: #8a9088;
  --accent: #00ff84;      /* OpBattle neon green */
  --accent-dark: #00c766;
  --accent2: #00bfff;     /* OpBattle cyan (used in gradients/highlights) */
  --success: #00ff84;
  --error: #ef4444;
  --info: #00bfff;
  --radius: 12px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background:
    radial-gradient(circle at 15% 10%, rgba(0,255,132,.10), transparent 35%),
    radial-gradient(circle at 85% 85%, rgba(0,191,255,.08), transparent 35%),
    var(--bg);
  color: var(--text);
  font-family: 'Segoe UI', Roboto, Arial, sans-serif;
  line-height: 1.5;
}

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

.container { max-width: 1100px; margin: 0 auto; padding: 0 20px; }
.container.narrow { max-width: 480px; }

/* ---------- Header ---------- */
.site-header {
  background: rgba(5,5,5,0.92);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--card-border);
  position: sticky; top: 0; z-index: 50;
}
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 68px; }
.logo { display: flex; align-items: center; gap: 12px; color: var(--text); }
.logo-box {
  width: 40px; height: 40px; border-radius: 12px; flex-shrink: 0;
  display: flex; align-items: center; justify-content: center;
  font-size: 19px; font-weight: 900; color: #000;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  box-shadow: 0 0 20px rgba(0,255,132,.35);
}
.logo-text { font-size: 20px; font-weight: 900; line-height: 1.1; }
.logo-text small { display: block; font-size: 10px; color: var(--muted); letter-spacing: 1.5px; font-weight: 600; margin-top: 2px; }
.logo span { color: var(--accent); }
.logo small { font-size: 11px; color: var(--muted); letter-spacing: 2px; margin-left: 6px; }
.main-nav { display: flex; align-items: center; gap: 18px; }
.main-nav a { color: var(--text); font-weight: 500; font-size: 14px; }
.main-nav a:hover { color: var(--accent); text-decoration: none; }
.btn-nav { background: linear-gradient(135deg, var(--accent), var(--accent2)); color: #050505 !important; padding: 8px 16px; border-radius: 8px; font-weight: 700; }
.wallet-pill { background: var(--bg-alt); border: 1px solid var(--card-border); padding: 3px 10px; border-radius: 20px; font-size: 12px; color: var(--accent); }
.nav-toggle { display: none; background: none; border: none; color: var(--text); font-size: 22px; cursor: pointer; }
.dot { display:inline-block; width:8px; height:8px; background: var(--error); border-radius:50%; }

/* ---------- Layout ---------- */
.site-main { min-height: 70vh; padding: 30px 0 60px; }
.section-title { font-size: 26px; font-weight: 800; margin: 10px 0 20px; }
.section-title span { color: var(--accent); }
.muted { color: var(--muted); }
.center { text-align: center; }

/* ---------- Cards ---------- */
.card {
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  padding: 24px;
  margin-bottom: 20px;
}
.auth-card { margin-top: 40px; }
.auth-card h1 { margin-top: 0; font-size: 24px; }

.grid { display: grid; gap: 20px; }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
@media (max-width: 720px) {
  .grid-2, .grid-3 { grid-template-columns: 1fr; }
}

/* ---------- Tournament Cards ---------- */
.tourney-card { display: flex; flex-direction: column; }
.tourney-banner {
  height: 140px; border-radius: 8px; margin-bottom: 14px;
  background: linear-gradient(135deg, #1f2430, #0d0f14);
  display: flex; align-items: center; justify-content: center;
  color: var(--accent); font-weight: 800; font-size: 18px;
  border: 1px solid var(--card-border);
  background-size: cover; background-position: center;
}
.badge {
  display: inline-block; padding: 3px 10px; border-radius: 20px;
  font-size: 11px; font-weight: 700; text-transform: uppercase; letter-spacing: .5px;
}
.badge-upcoming { background: rgba(0,191,255,.15); color: var(--info); }
.badge-ongoing { background: rgba(0,255,132,.15); color: var(--accent); }
.badge-completed { background: rgba(143,151,168,.15); color: var(--muted); }
.badge-group { background: rgba(0,255,132,.15); color: var(--success); }
.badge-quarter_final,.badge-semi_final,.badge-final { background: rgba(239,68,68,.15); color: var(--error); }

.slot-bar { height: 8px; background: var(--bg-alt); border-radius: 4px; overflow: hidden; margin: 8px 0; }
.slot-bar-fill { height: 100%; background: linear-gradient(90deg, var(--accent), var(--accent2)); }

/* ---------- Avatars ---------- */
.avatar {
  width: 34px; height: 34px; border-radius: 50%; flex-shrink: 0;
  display: flex; align-items: center; justify-content: center;
  font-weight: 800; font-size: 13px; color: #050505;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  object-fit: cover;
}
.avatar-lg { width: 52px; height: 52px; font-size: 18px; }
.avatar-row { display: flex; align-items: center; gap: 8px; }

/* ---------- Room Slot Grid (PUBG-room style) ---------- */
.slot-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 14px; }
.slot-card {
  background: var(--bg-alt); border: 1px solid var(--card-border); border-radius: var(--radius);
  padding: 14px; min-height: 100px;
}
.slot-card.slot-filled { border-color: rgba(0,255,132,.35); }
.slot-card.slot-empty { display: flex; align-items: center; justify-content: center; border-style: dashed; }
.slot-num {
  display: inline-block; font-size: 11px; font-weight: 800; color: #050505;
  background: var(--accent); padding: 2px 8px; border-radius: 20px; margin-bottom: 8px;
}

/* ---------- Forms ---------- */
label { display: block; font-size: 13px; color: var(--muted); margin: 14px 0 6px; font-weight: 600; }
input[type=text], input[type=email], input[type=password], input[type=number],
input[type=file], input[type=datetime-local], select, textarea {
  width: 100%; padding: 11px 12px; background: var(--bg-alt);
  border: 1px solid var(--card-border); border-radius: 6px; color: var(--text); font-size: 14px;
}
input:focus, select:focus, textarea:focus { outline: none; border-color: var(--accent); }
textarea { resize: vertical; min-height: 90px; }

.btn {
  display: inline-block; padding: 11px 20px; border-radius: 6px; font-weight: 700;
  border: none; cursor: pointer; font-size: 14px; text-align: center;
}
.btn-primary { background: linear-gradient(135deg, var(--accent), var(--accent2)); color: #050505; }
.btn-primary:hover { filter: brightness(1.08); text-decoration: none; }
.btn-secondary { background: var(--bg-alt); color: var(--text); border: 1px solid var(--card-border); }
.btn-danger { background: var(--error); color: #fff; }
.btn-success { background: var(--success); color: #08210f; }
.btn-block { width: 100%; margin-top: 20px; }
.btn-sm { padding: 6px 12px; font-size: 12px; }

/* ---------- Alerts ---------- */
.alert { padding: 12px 16px; border-radius: 8px; margin: 16px 0; font-size: 14px; }
.alert ul { margin: 0; padding-left: 18px; }
.alert-success { background: rgba(41,196,111,.12); border: 1px solid rgba(41,196,111,.4); color: var(--success); }
.alert-error { background: rgba(239,68,68,.12); border: 1px solid rgba(239,68,68,.4); color: #ff8080; }
.alert-info { background: rgba(59,130,246,.12); border: 1px solid rgba(59,130,246,.4); color: #7fb0ff; }

/* ---------- Tables ---------- */
table { width: 100%; border-collapse: collapse; font-size: 14px; }
th, td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--card-border); }
th { color: var(--muted); font-size: 12px; text-transform: uppercase; letter-spacing: .5px; }
tr:hover td { background: rgba(255,255,255,0.02); }
.table-wrap { overflow-x: auto; }

/* ---------- Room ID box ---------- */
.room-box {
  background: var(--bg-alt); border: 1px dashed var(--accent); border-radius: 8px;
  padding: 18px; text-align: center; margin: 16px 0;
}
.room-box .room-value { font-size: 22px; font-weight: 800; letter-spacing: 2px; color: var(--accent); }

/* ---------- Leaderboard ---------- */
.rank-1 { color: gold; font-weight: 800; }
.rank-2 { color: silver; font-weight: 800; }
.rank-3 { color: #cd7f32; font-weight: 800; }

/* ---------- Hero ---------- */
.hero {
  background: radial-gradient(ellipse at top, rgba(0,255,132,.14), transparent 60%), var(--bg);
  border-bottom: 1px solid var(--card-border);
  padding: 70px 0 50px; text-align: center;
}
.hero-badge {
  display: inline-block; padding: 6px 16px; border-radius: 20px; margin-bottom: 18px;
  background: rgba(0,255,132,.1); border: 1px solid rgba(0,255,132,.3);
  color: var(--accent); font-size: 12px; font-weight: 800; letter-spacing: 1px;
}
.hero h1 { font-size: 40px; margin-bottom: 12px; }
.hero h1 span { color: var(--accent); }
.hero p { color: var(--muted); font-size: 16px; max-width: 600px; margin: 0 auto 26px; }

/* ---------- Footer ---------- */
.site-footer { border-top: 1px solid var(--card-border); padding: 24px 0; margin-top: 40px; }
.footer-inner { text-align: center; color: var(--muted); font-size: 13px; }
.footer-note { font-size: 11px; margin-top: 4px; }

/* ---------- Admin ---------- */
.admin-shell { display: flex; min-height: 100vh; }
.admin-sidebar { width: 230px; background: var(--bg-alt); border-right: 1px solid var(--card-border); padding: 20px 0; flex-shrink: 0; }
.admin-sidebar .logo { padding: 0 20px 20px; }
.admin-sidebar nav { display: flex; flex-direction: column; }
.admin-sidebar nav a { padding: 12px 20px; color: var(--muted); font-size: 14px; border-left: 3px solid transparent; }
.admin-sidebar nav a:hover { color: var(--text); text-decoration: none; background: rgba(255,255,255,0.02); }
.admin-sidebar nav a.active { color: var(--accent); border-left-color: var(--accent); background: rgba(0,255,132,.06); }
.admin-sidebar nav a.logout-link { margin-top: 20px; color: var(--error); }
.admin-content { flex: 1; min-width: 0; }
.admin-topbar { display: none; padding: 14px 20px; border-bottom: 1px solid var(--card-border); align-items: center; gap: 14px; }
.admin-main { padding: 26px 20px; }
.admin-main h1 { margin-top: 0; }

.stat-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-bottom: 26px; }
.stat-card { background: var(--card); border: 1px solid var(--card-border); border-radius: 10px; padding: 18px; }
.stat-card .num { font-size: 26px; font-weight: 800; color: var(--accent); }
.stat-card .label { color: var(--muted); font-size: 12px; text-transform: uppercase; }
@media (max-width: 900px) { .stat-grid { grid-template-columns: repeat(2, 1fr); } }

img.thumb { max-width: 160px; border-radius: 6px; border: 1px solid var(--card-border); }
.pill { padding: 2px 9px; border-radius: 12px; font-size: 11px; font-weight: 700; }
.pill-pending { background: rgba(0,191,255,.15); color: var(--info); }
.pill-approved,.pill-verified,.pill-paid { background: rgba(41,196,111,.15); color: var(--success); }
.pill-rejected { background: rgba(239,68,68,.15); color: var(--error); }

@media (max-width: 860px) {
  .main-nav {
    display: none; position: absolute; top: 64px; left: 0; right: 0;
    background: var(--bg-alt); flex-direction: column; padding: 14px 20px; gap: 12px;
    border-bottom: 1px solid var(--card-border);
  }
  .main-nav.open { display: flex; }
  .nav-toggle { display: block; }
  .admin-shell { flex-direction: column; }
  .admin-sidebar { width: 100%; display: none; }
  .admin-sidebar.open { display: block; }
  .admin-topbar { display: flex; }
  .stat-grid { grid-template-columns: 1fr 1fr; }
}