/* ==========================================================================
   DersTeders - Liderlik Tablosu (Leaderboard) Stilleri
   Marka paleti: petrol (#0F6B7C), altın (#C5923E), krem (#FBF9F4)
   Açık/koyu tema + responsive desteklidir.
   ========================================================================== */

.lb-section {
  --lb-bg: var(--brand-cream, #FBF9F4);
  --lb-surface: #FFFFFF;
  --lb-ink: #12333D;
  --lb-muted: #7A949D;
  --lb-border: #E9E2D3;
  --lb-petrol: var(--brand-petrol, #0F6B7C);
  --lb-petrol-mid: var(--brand-petrol-mid, #12879C);
  --lb-gold: var(--brand-gold, #C5923E);
  --lb-gold-bright: var(--brand-gold-bright, #F5C542);
  --lb-orange: var(--brand-orange, #E8783F);
  position: relative;
}

[data-theme="dark"] .lb-section {
  --lb-bg: #0B1B20;
  --lb-surface: #102C35;
  --lb-ink: #E9F2F4;
  --lb-muted: #8AA7AE;
  --lb-border: #1E4650;
}

/* ── Bölüm başlığı ─────────────────────────────────────────── */
.lb-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 20px;
}

.lb-head h2 {
  font-size: clamp(1.4rem, 3vw, 2rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--lb-ink);
  margin: 0;
  display: flex;
  align-items: center;
  gap: 10px;
}

.lb-head h2 .lb-crown {
  color: var(--lb-gold);
}

.lb-head p {
  margin: 6px 0 0;
  color: var(--lb-muted);
  font-size: 0.92rem;
  max-width: 560px;
}

.lb-head-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

/* ── Sekmeler (Haftalık / Tüm Zamanlar) ────────────────────── */
.lb-tabs {
  display: inline-flex;
  padding: 4px;
  border-radius: 999px;
  background: color-mix(in srgb, var(--lb-petrol) 8%, var(--lb-surface));
  border: 1px solid var(--lb-border);
  gap: 4px;
}

.lb-tab {
  border: none;
  background: transparent;
  color: var(--lb-muted);
  font-family: inherit;
  font-weight: 700;
  font-size: 0.85rem;
  padding: 8px 18px;
  border-radius: 999px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  transition: all 0.2s ease;
  white-space: nowrap;
}

.lb-tab:hover {
  color: var(--lb-petrol);
}

.lb-tab.active {
  background: linear-gradient(135deg, var(--lb-petrol), var(--lb-petrol-mid));
  color: #fff;
  box-shadow: 0 6px 14px rgba(15, 107, 124, 0.28);
}

/* ── Kart ──────────────────────────────────────────────────── */
.lb-card {
  background: var(--lb-surface);
  border: 1px solid var(--lb-border);
  border-radius: 18px;
  box-shadow: 0 12px 30px rgba(10, 61, 74, 0.08);
  overflow: hidden;
}

[data-theme="dark"] .lb-card {
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.35);
}

.lb-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

/* ── Satır ─────────────────────────────────────────────────── */
.lb-row {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 13px 18px;
  border-bottom: 1px solid var(--lb-border);
  transition: background 0.18s ease;
}

.lb-row:last-child {
  border-bottom: none;
}

.lb-row:hover {
  background: color-mix(in srgb, var(--lb-petrol) 5%, transparent);
}

.lb-row.is-me {
  background: color-mix(in srgb, var(--lb-gold) 13%, transparent);
  box-shadow: inset 3px 0 0 var(--lb-gold);
}

.lb-row.top-1 { background: linear-gradient(90deg, rgba(245, 197, 66, 0.18), transparent 65%); }
.lb-row.top-2 { background: linear-gradient(90deg, rgba(176, 190, 197, 0.18), transparent 65%); }
.lb-row.top-3 { background: linear-gradient(90deg, rgba(197, 146, 62, 0.15), transparent 65%); }

/* ── Sıra rozeti ───────────────────────────────────────────── */
.lb-rank {
  width: 34px;
  height: 34px;
  flex-shrink: 0;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 0.9rem;
  color: var(--lb-muted);
  background: color-mix(in srgb, var(--lb-muted) 12%, transparent);
}

.lb-medal {
  width: 38px;
  height: 38px;
  font-size: 1.15rem;
  color: #fff;
  border-radius: 50%;
}

.lb-medal.m1 { background: linear-gradient(135deg, #F5C542, #C5923E); box-shadow: 0 4px 12px rgba(197, 146, 62, 0.45); }
.lb-medal.m2 { background: linear-gradient(135deg, #D7DEE2, #9AA7AD); box-shadow: 0 4px 12px rgba(154, 167, 173, 0.4); }
.lb-medal.m3 { background: linear-gradient(135deg, #E0A06A, #B5723C); box-shadow: 0 4px 12px rgba(181, 114, 60, 0.4); }

/* ── Avatar ────────────────────────────────────────────────── */
.lb-avatar {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 0.98rem;
  color: #fff;
  background: linear-gradient(135deg, var(--lb-petrol), var(--lb-petrol-mid));
  overflow: hidden;
  border: 2px solid var(--lb-surface);
  box-shadow: 0 2px 6px rgba(10, 61, 74, 0.18);
}

.lb-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.lb-avatar.lg {
  width: 56px;
  height: 56px;
  font-size: 1.25rem;
}

/* ── Kullanıcı bilgisi ─────────────────────────────────────── */
.lb-user {
  flex: 1;
  min-width: 0;
}

.lb-name {
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--lb-ink);
  display: flex;
  align-items: center;
  gap: 8px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.lb-tag {
  font-size: 0.62rem;
  font-weight: 800;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  padding: 2px 8px;
  border-radius: 999px;
  background: color-mix(in srgb, var(--lb-petrol) 14%, transparent);
  color: var(--lb-petrol);
}

[data-theme="dark"] .lb-tag { color: #6FD3E4; }

.lb-sub {
  font-size: 0.78rem;
  color: var(--lb-muted);
  margin-top: 2px;
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.lb-sub i { color: var(--lb-petrol); }

.lb-level-chip {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--lb-gold);
  background: color-mix(in srgb, var(--lb-gold) 14%, transparent);
  padding: 2px 9px;
  border-radius: 999px;
}

[data-theme="dark"] .lb-level-chip { color: var(--lb-gold-bright); }

/* ── Sağ taraf: metrikler ──────────────────────────────────── */
.lb-metrics {
  display: flex;
  align-items: center;
  gap: 18px;
  flex-shrink: 0;
}

.lb-metric {
  text-align: right;
  min-width: 62px;
}

.lb-metric b {
  display: block;
  font-size: 1rem;
  font-weight: 800;
  color: var(--lb-ink);
  line-height: 1.1;
}

.lb-metric span {
  font-size: 0.68rem;
  color: var(--lb-muted);
  text-transform: uppercase;
  letter-spacing: 0.03em;
  font-weight: 600;
}

.lb-metric.gold b { color: var(--lb-gold); }

/* ── Benim sıram kartı ─────────────────────────────────────── */
.lb-me {
  margin-top: 16px;
  border: 1px solid color-mix(in srgb, var(--lb-gold) 45%, var(--lb-border));
  background: linear-gradient(135deg, color-mix(in srgb, var(--lb-gold) 12%, var(--lb-surface)), var(--lb-surface));
  border-radius: 18px;
  padding: 4px;
}

.lb-me .lb-row {
  border-bottom: none;
  border-radius: 14px;
}

.lb-me-label {
  font-size: 0.7rem;
  font-weight: 800;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--lb-gold);
  padding: 10px 18px 0;
  display: flex;
  align-items: center;
  gap: 6px;
}

/* ── Katılım çağrısı / boş durum ───────────────────────────── */
.lb-cta {
  text-align: center;
  padding: 32px 20px;
  color: var(--lb-muted);
}

.lb-cta i {
  font-size: 2rem;
  color: var(--lb-petrol);
  opacity: 0.7;
  display: block;
  margin-bottom: 12px;
}

.lb-cta p {
  margin: 0 0 14px;
  font-size: 0.9rem;
}

.lb-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 11px 22px;
  border-radius: 10px;
  font-weight: 700;
  font-size: 0.87rem;
  text-decoration: none;
  border: none;
  cursor: pointer;
  font-family: inherit;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.lb-btn-primary {
  background: linear-gradient(135deg, var(--lb-petrol), var(--lb-petrol-mid));
  color: #fff;
  box-shadow: 0 8px 18px rgba(10, 61, 74, 0.25);
}

.lb-btn-primary:hover { transform: translateY(-2px); box-shadow: 0 12px 24px rgba(10, 61, 74, 0.32); }

.lb-btn-ghost {
  background: transparent;
  color: var(--lb-petrol);
  border: 1.5px solid color-mix(in srgb, var(--lb-petrol) 40%, transparent);
}

.lb-btn-ghost:hover { background: color-mix(in srgb, var(--lb-petrol) 8%, transparent); }

/* ── İskelet (yükleniyor) ──────────────────────────────────── */
.lb-skeleton {
  height: 16px;
  border-radius: 8px;
  background: linear-gradient(90deg, color-mix(in srgb, var(--lb-muted) 12%, transparent) 25%, color-mix(in srgb, var(--lb-muted) 22%, transparent) 37%, color-mix(in srgb, var(--lb-muted) 12%, transparent) 63%);
  background-size: 400% 100%;
  animation: lbShimmer 1.4s ease infinite;
}

@keyframes lbShimmer {
  0% { background-position: 100% 50%; }
  100% { background-position: 0 50%; }
}

.lb-loading { padding: 26px 18px; display: flex; flex-direction: column; gap: 14px; }
.lb-loading .lb-skeleton:nth-child(2) { width: 82%; }
.lb-loading .lb-skeleton:nth-child(3) { width: 68%; }
.lb-loading .lb-skeleton:nth-child(4) { width: 75%; }

/* ── Ana sayfa önizleme bölümü ─────────────────────────────── */
.lb-preview {
  background: var(--lb-bg);
  padding: 64px 0;
}

.lb-preview .lb-card { max-width: 760px; margin: 0 auto; }

/* ── Responsive ────────────────────────────────────────────── */
@media (max-width: 720px) {
  .lb-row { padding: 12px 14px; gap: 10px; }
  .lb-metrics { gap: 12px; }
  .lb-metric { min-width: 48px; }
  .lb-metric:nth-child(n+3) { display: none; }
  .lb-rank { width: 30px; height: 30px; }
  .lb-medal { width: 32px; height: 32px; font-size: 1rem; }
  .lb-avatar { width: 38px; height: 38px; }
  .lb-head { flex-direction: column; align-items: flex-start; }
}

@media (max-width: 460px) {
  .lb-metric:nth-child(n+2) { display: none; }
  .lb-tab { padding: 8px 13px; font-size: 0.8rem; }
}