/* ═══════════════════════════════════════════════════
   Leaderboard — Shared styles for 4ox.kr games
   ═══════════════════════════════════════════════════ */

/* ── FAB (Floating Action Button) ─────────────────── */
#lb-fab {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%) translateY(80px);
  z-index: 9000;
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 12px 24px;
  border: 1px solid var(--border, #30363D);
  border-radius: 99px;
  background: var(--bg-secondary, #161B22);
  color: var(--text-primary, #F0F6FC);
  font-family: inherit;
  font-size: 15px;
  font-weight: 700;
  cursor: pointer;
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.4);
  transition: transform 0.35s cubic-bezier(0.34, 1.56, 0.64, 1), opacity 0.3s;
  opacity: 0;
  pointer-events: none;
  -webkit-tap-highlight-color: transparent;
}

#lb-fab.lb-fab-visible {
  transform: translateX(-50%) translateY(0);
  opacity: 1;
  pointer-events: auto;
}

#lb-fab:active {
  transform: translateX(-50%) scale(0.95);
}

/* ── Overlay ──────────────────────────────────────── */
.lb-overlay {
  position: fixed;
  inset: 0;
  z-index: 9999;
  display: flex;
  justify-content: center;
  align-items: center;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s ease;
  padding: 20px;
}

.lb-overlay.lb-visible {
  opacity: 1;
  pointer-events: auto;
}

/* ── Card ─────────────────────────────────────────── */
.lb-card {
  width: 100%;
  max-width: 380px;
  max-height: 85vh;
  overflow-y: auto;
  background: var(--bg-secondary, #161B22);
  border: 1px solid var(--border, #30363D);
  border-radius: 20px;
  padding: 24px;
  transform: translateY(20px);
  transition: transform 0.3s ease;
}

.lb-overlay.lb-visible .lb-card {
  transform: translateY(0);
}

.lb-card::-webkit-scrollbar { width: 4px; }
.lb-card::-webkit-scrollbar-track { background: transparent; }
.lb-card::-webkit-scrollbar-thumb {
  background: var(--border, #30363D);
  border-radius: 4px;
}

/* ── Header ───────────────────────────────────────── */
.lb-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
}

.lb-title {
  font-size: 22px;
  font-weight: 800;
  color: var(--text-primary, #F0F6FC);
}

.lb-close {
  width: 32px;
  height: 32px;
  border: 1px solid var(--border, #30363D);
  border-radius: 8px;
  background: var(--bg-tertiary, #21262D);
  color: var(--text-secondary, #8B949E);
  font-size: 14px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.15s, color 0.15s;
  -webkit-tap-highlight-color: transparent;
}

.lb-close:hover {
  background: var(--border, #30363D);
  color: var(--text-primary, #F0F6FC);
}

/* ── My score ─────────────────────────────────────── */
.lb-my {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding: 16px;
  background: var(--bg-tertiary, #21262D);
  border: 1px solid var(--border, #30363D);
  border-radius: 12px;
  margin-bottom: 16px;
}

.lb-my-label {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-muted, #484F58);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.lb-my-value {
  font-size: 32px;
  font-weight: 800;
  color: var(--accent, #3B82F6);
  line-height: 1;
}

/* ── Submit row ───────────────────────────────────── */
.lb-submit-row {
  display: flex;
  gap: 8px;
  margin-bottom: 16px;
}

.lb-input {
  flex: 1;
  padding: 12px 14px;
  border: 1px solid var(--border, #30363D);
  border-radius: 10px;
  background: var(--bg-primary, #0D1117);
  color: var(--text-primary, #F0F6FC);
  font-family: inherit;
  font-size: 15px;
  font-weight: 500;
  outline: none;
  transition: border-color 0.2s;
}

.lb-input::placeholder {
  color: var(--text-muted, #484F58);
}

.lb-input:focus {
  border-color: var(--accent, #3B82F6);
}

.lb-submit-btn {
  padding: 12px 20px;
  border: none;
  border-radius: 10px;
  background: var(--accent, #3B82F6);
  color: #fff;
  font-family: inherit;
  font-size: 15px;
  font-weight: 700;
  cursor: pointer;
  white-space: nowrap;
  transition: opacity 0.15s, transform 0.1s;
  -webkit-tap-highlight-color: transparent;
}

.lb-submit-btn:active {
  transform: scale(0.96);
}

.lb-submit-btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

/* ── Submitted message ────────────────────────────── */
.lb-submitted-msg {
  display: none;
  text-align: center;
  padding: 10px;
  font-size: 14px;
  font-weight: 600;
  color: #22C55E;
  margin-bottom: 12px;
}

/* ── Separator ────────────────────────────────────── */
.lb-sep {
  height: 1px;
  background: var(--border, #30363D);
  margin: 4px 0 12px;
}

/* ── List header ──────────────────────────────────── */
.lb-list-head {
  display: flex;
  padding: 6px 8px;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted, #484F58);
  margin-bottom: 4px;
}

/* ── List rows ────────────────────────────────────── */
.lb-row {
  display: flex;
  align-items: center;
  padding: 10px 8px;
  border-radius: 8px;
  transition: background 0.15s;
}

.lb-row:nth-child(odd) {
  background: rgba(255, 255, 255, 0.02);
}

.lb-row-mine {
  background: rgba(59, 130, 246, 0.1) !important;
  border: 1px solid rgba(59, 130, 246, 0.3);
}

/* ── Columns ──────────────────────────────────────── */
.lb-col-rank {
  width: 36px;
  font-weight: 700;
  font-size: 14px;
  text-align: center;
  flex-shrink: 0;
}

.lb-col-name {
  flex: 1;
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary, #F0F6FC);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.lb-col-score {
  width: 80px;
  text-align: right;
  font-size: 15px;
  font-weight: 700;
  color: var(--text-primary, #F0F6FC);
  flex-shrink: 0;
}

/* ── Status messages ──────────────────────────────── */
.lb-status {
  text-align: center;
  padding: 20px 8px;
  font-size: 13px;
  color: var(--text-muted, #484F58);
}

/* ── Start Screen Ranking ────────────────────────── */
.lb-start-ranking {
  margin-top: 20px;
  padding: 14px 16px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 14px;
  max-width: 280px;
  margin-left: auto;
  margin-right: auto;
}

.lb-start-title {
  font-size: 13px;
  font-weight: 800;
  text-align: center;
  color: rgba(255, 255, 255, 0.5);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 10px;
}

.lb-start-row {
  display: flex;
  align-items: center;
  padding: 5px 4px;
  border-radius: 6px;
}

.lb-start-row:nth-child(odd) {
  background: rgba(255, 255, 255, 0.03);
}

.lb-start-rank {
  width: 28px;
  font-size: 13px;
  font-weight: 700;
  text-align: center;
  flex-shrink: 0;
  color: rgba(255, 255, 255, 0.5);
}

.lb-start-name {
  flex: 1;
  font-size: 13px;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.85);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.lb-start-score {
  width: 64px;
  text-align: right;
  font-size: 13px;
  font-weight: 700;
  color: rgba(255, 255, 255, 0.7);
  flex-shrink: 0;
}

.lb-start-status {
  text-align: center;
  padding: 8px 0;
  font-size: 12px;
  color: rgba(255, 255, 255, 0.35);
}

/* ── Light mode ───────────────────────────────────── */
@media (prefers-color-scheme: light) {
  .lb-overlay {
    background: rgba(255, 255, 255, 0.7);
  }

  .lb-row:nth-child(odd) {
    background: rgba(0, 0, 0, 0.02);
  }

  .lb-row-mine {
    background: rgba(49, 130, 246, 0.08) !important;
    border-color: rgba(49, 130, 246, 0.2);
  }

  #lb-fab {
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.15);
  }

  .lb-start-ranking {
    background: rgba(0, 0, 0, 0.05);
    border-color: rgba(0, 0, 0, 0.1);
  }
  .lb-start-title { color: rgba(0, 0, 0, 0.4); }
  .lb-start-row:nth-child(odd) { background: rgba(0, 0, 0, 0.03); }
  .lb-start-rank { color: rgba(0, 0, 0, 0.4); }
  .lb-start-name { color: rgba(0, 0, 0, 0.75); }
  .lb-start-score { color: rgba(0, 0, 0, 0.6); }
  .lb-start-status { color: rgba(0, 0, 0, 0.3); }
}

/* ── Reduced motion ───────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
  #lb-fab,
  .lb-overlay,
  .lb-card {
    transition-duration: 0.01ms !important;
  }
}