:root {
  --bg: #0b1020;
  --bg-elev: #141a32;
  --bg-card: #1a2142;
  --border: #29325a;
  --text: #e7ebff;
  --text-dim: #97a0c8;
  --accent: #6c8bff;
  --accent-2: #59e0c5;
  --danger: #ff7878;
  --warn: #ffce5c;
  --success: #6ee7a4;
  --radius: 14px;
  --shadow: 0 8px 28px rgba(0, 0, 0, 0.35);
  font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto,
               "Noto Sans Arabic", "Geeza Pro", "Tahoma", sans-serif;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  background:
    radial-gradient(1200px 600px at 10% -10%, #1c2554 0%, transparent 60%),
    radial-gradient(800px 500px at 90% 10%, #0f3b51 0%, transparent 55%),
    var(--bg);
  color: var(--text);
  min-height: 100vh;
}

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

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 28px;
  border-bottom: 1px solid var(--border);
  background: rgba(11, 16, 32, 0.75);
  backdrop-filter: blur(8px);
  position: sticky;
  top: 0;
  z-index: 10;
}

.brand {
  font-weight: 700;
  letter-spacing: 0.4px;
  font-size: 18px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.brand .dot {
  width: 10px; height: 10px; border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  box-shadow: 0 0 18px var(--accent);
}

.nav { display: flex; gap: 18px; align-items: center; }
.nav .who { color: var(--text-dim); font-size: 14px; }
.nav button.linklike {
  background: none; border: 1px solid var(--border);
  color: var(--text); padding: 6px 12px; border-radius: 8px;
  cursor: pointer; font-size: 13px;
}
.nav button.linklike:hover { border-color: var(--accent); }

.container {
  max-width: 1080px;
  margin: 0 auto;
  padding: 28px;
}

.hero {
  text-align: center;
  padding: 80px 20px 40px;
}
.hero h1 {
  font-size: 38px; margin: 0 0 10px;
  background: linear-gradient(135deg, #fff, #b9c5ff);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero p { color: var(--text-dim); max-width: 620px; margin: 0 auto; }

.card {
  background: linear-gradient(180deg, var(--bg-card), var(--bg-elev));
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px;
  box-shadow: var(--shadow);
}

.login-card {
  max-width: 420px;
  margin: 40px auto;
}
.login-card h2 { margin: 0 0 6px; }
.login-card .hint { color: var(--text-dim); margin: 0 0 18px; font-size: 14px; }

label { display: block; font-size: 13px; color: var(--text-dim); margin-bottom: 6px; }
input[type="text"], input[type="email"], input[type="password"], textarea, select {
  width: 100%;
  background: #0e1430;
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 12px 14px;
  font-size: 15px;
  outline: none;
  transition: border-color .15s ease;
}
input[type="text"]:focus, input[type="email"]:focus, input[type="password"]:focus,
textarea:focus { border-color: var(--accent); }

.auth-tabs {
  display: flex;
  gap: 6px;
  padding: 4px;
  background: #0e1430;
  border: 1px solid var(--border);
  border-radius: 12px;
  margin: 0 0 20px;
}
.auth-tab {
  flex: 1;
  background: transparent;
  color: var(--text-dim);
  border: none;
  padding: 9px 14px;
  border-radius: 8px;
  cursor: pointer;
  font-size: 14px;
  font-weight: 600;
  transition: background .15s ease, color .15s ease;
}
.auth-tab:hover { color: var(--text); }
.auth-tab.active {
  background: linear-gradient(135deg, var(--accent), #4f6bff);
  color: white;
}
textarea { min-height: 100px; resize: vertical; line-height: 1.7; font-size: 16px; }

/* Wrappers for user-generated content that may be Arabic or English.
   `dir="auto"` on the element itself picks the correct direction per item. */
.auto-dir { unicode-bidi: plaintext; }
.auto-dir[dir="auto"] { text-align: start; }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 11px 18px;
  border-radius: 10px;
  border: 1px solid transparent;
  background: linear-gradient(135deg, var(--accent), #4f6bff);
  color: white;
  cursor: pointer;
  font-weight: 600;
  font-size: 14px;
  transition: transform .05s ease, box-shadow .15s ease, filter .15s ease;
}
.btn:hover { filter: brightness(1.07); box-shadow: 0 6px 22px rgba(108,139,255,0.35); }
.btn:active { transform: translateY(1px); }
.btn:disabled { opacity: .6; cursor: not-allowed; box-shadow: none; }
.btn.ghost {
  background: transparent;
  border-color: var(--border);
  color: var(--text);
}
.btn.ghost:hover { border-color: var(--accent); }
.btn.danger { background: linear-gradient(135deg, var(--danger), #c64545); }
.btn.success { background: linear-gradient(135deg, var(--success), #2fab5d); color: #061a0d; }

.row { display: flex; gap: 12px; align-items: center; flex-wrap: wrap; }
.spacer { flex: 1; }

.audio-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin-top: 18px;
}
@media (min-width: 720px) {
  .audio-grid { grid-template-columns: repeat(auto-fit, minmax(340px, 1fr)); }
}

.audio-card {
  background: linear-gradient(180deg, var(--bg-card), var(--bg-elev));
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px;
  position: relative;
}
.audio-card h3 {
  margin: 0 0 6px;
  display: flex; align-items: center; gap: 10px;
  font-size: 17px;
}
.audio-card .meta { color: var(--text-dim); font-size: 12px; margin: 0 0 12px; }
.audio-card audio { width: 100%; margin-bottom: 14px; }
.audio-card.err {
  border-color: rgba(255,120,120,0.55);
  background: linear-gradient(180deg, #2a1622, #1a1226);
}

.badge {
  background: rgba(108,139,255,0.18);
  color: var(--accent);
  padding: 2px 8px;
  border-radius: 999px;
  font-size: 11px;
  border: 1px solid rgba(108,139,255,0.35);
}
.badge.winner {
  background: rgba(110,231,164,0.18);
  color: var(--success);
  border-color: rgba(110,231,164,0.45);
}

.criteria { display: grid; gap: 10px; margin-bottom: 12px; }
.crit-row {
  display: grid;
  grid-template-columns: 130px 1fr 50px;
  align-items: center;
  gap: 10px;
}
.crit-row label { margin: 0; color: var(--text); font-size: 13px; }
.crit-row .val { font-variant-numeric: tabular-nums; text-align: right; color: var(--text-dim); }
input[type="range"] { width: 100%; accent-color: var(--accent); }

.feedback-toggle {
  background: none;
  color: var(--text-dim);
  border: none;
  padding: 0;
  cursor: pointer;
  font-size: 13px;
  margin-bottom: 6px;
}

.winner-pick {
  display: flex; align-items: center; gap: 8px;
  margin-top: 8px; font-size: 13px; color: var(--text-dim);
}
.winner-pick input { accent-color: var(--accent-2); transform: scale(1.15); }

.toast {
  position: fixed; bottom: 24px; left: 50%; transform: translateX(-50%);
  background: var(--bg-card); border: 1px solid var(--border);
  padding: 12px 16px; border-radius: 10px; box-shadow: var(--shadow);
  z-index: 100; max-width: 90vw;
}
.toast.error { border-color: rgba(255,120,120,0.55); }
.toast.success { border-color: rgba(110,231,164,0.55); }

.loader {
  display: inline-block;
  width: 14px; height: 14px;
  border: 2px solid rgba(255,255,255,0.25);
  border-top-color: white;
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
  margin-bottom: 18px;
}
@media (max-width: 720px) {
  .stats { grid-template-columns: repeat(2, 1fr); }
}
.stat-card {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: 12px; padding: 16px;
}
.stat-card .v { font-size: 28px; font-weight: 700; }
.stat-card .k { color: var(--text-dim); font-size: 12px; text-transform: uppercase; letter-spacing: 0.8px; }

table.leaderboard {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
}
table.leaderboard th, table.leaderboard td {
  padding: 12px 14px; text-align: left; font-size: 14px;
  border-bottom: 1px solid var(--border);
}
table.leaderboard th { background: rgba(255,255,255,0.03); color: var(--text-dim); font-weight: 500; font-size: 12px; text-transform: uppercase; letter-spacing: 0.6px; }
table.leaderboard tr:last-child td { border-bottom: none; }
table.leaderboard td.num { font-variant-numeric: tabular-nums; }

details.session {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 14px 16px;
  margin-bottom: 10px;
}
details.session summary {
  cursor: pointer;
  list-style: none;
  display: flex; gap: 12px; align-items: center;
}
details.session summary::-webkit-details-marker { display: none; }
details.session .text { color: var(--text-dim); font-style: italic; max-width: 60%; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
details.session .timestamp { color: var(--text-dim); font-size: 12px; }
details.session table { width: 100%; margin-top: 12px; border-collapse: collapse; }
details.session th, details.session td { font-size: 13px; padding: 8px 10px; border-bottom: 1px solid var(--border); text-align: left; }
details.session th { color: var(--text-dim); font-weight: 500; font-size: 11px; text-transform: uppercase; letter-spacing: 0.5px; }

.empty {
  text-align: center; color: var(--text-dim);
  padding: 30px; border: 1px dashed var(--border); border-radius: 12px;
}

.section-h {
  display: flex; align-items: baseline; justify-content: space-between;
  margin: 24px 0 12px;
}
.section-h h2 { margin: 0; font-size: 18px; }
.section-h .sub { color: var(--text-dim); font-size: 13px; }