/**
 * TypeRush - Leaderboard CSS (Phase 9)
 *
 * Premium ranked leaderboard with:
 *  - Hero header with animated trophy
 *  - Sticky filter toolbar
 *  - Gold/silver/bronze medal rows
 *  - Skeleton loading animation
 *  - Own-rank floating banner
 *  - Full responsive layout
 *
 * @package TypeRush
 */

/* ═══════════════════════════════════════════════
   PAGE WRAPPER
═══════════════════════════════════════════════ */

.lb-page {
  max-width: 900px;
  margin: 0 auto;
  padding: 40px 20px 80px;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

/* ═══════════════════════════════════════════════
   HERO
═══════════════════════════════════════════════ */

.lb-hero {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 32px;
  background: linear-gradient(
    135deg,
    rgba(var(--main-color-rgb, 226, 183, 20), 0.12) 0%,
    rgba(var(--main-color-rgb, 226, 183, 20), 0.03) 100%
  );
  border: 1px solid rgba(var(--main-color-rgb, 226, 183, 20), 0.2);
  border-radius: 20px;
  position: relative;
  overflow: hidden;
}

.lb-hero::before {
  content: '';
  position: absolute;
  top: -60px;
  right: -60px;
  width: 200px;
  height: 200px;
  background: radial-gradient(
    circle,
    rgba(var(--main-color-rgb, 226, 183, 20), 0.15) 0%,
    transparent 70%
  );
  pointer-events: none;
}

.lb-hero-icon {
  width: 64px;
  height: 64px;
  background: var(--main-color);
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.8rem;
  color: var(--bg-color);
  flex-shrink: 0;
  animation: lb-trophy-pulse 3s ease-in-out infinite;
  box-shadow: 0 8px 24px rgba(var(--main-color-rgb, 226, 183, 20), 0.35);
}

@keyframes lb-trophy-pulse {
  0%, 100% { transform: scale(1);    box-shadow: 0 8px 24px rgba(var(--main-color-rgb, 226, 183, 20), 0.35); }
  50%       { transform: scale(1.06); box-shadow: 0 12px 36px rgba(var(--main-color-rgb, 226, 183, 20), 0.55); }
}

.lb-title {
  font-family: var(--ui-font-family, 'Roboto', sans-serif);
  font-size: 2rem;
  font-weight: 700;
  color: var(--text-color);
  margin: 0;
  line-height: 1.2;
}

.lb-subtitle {
  font-family: var(--ui-font-family);
  font-size: 0.95rem;
  color: var(--sub-color);
  margin: 4px 0 0;
}

/* ═══════════════════════════════════════════════
   TOOLBAR
═══════════════════════════════════════════════ */

.lb-toolbar {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
  padding: 14px 18px;
  background: var(--sub-alt-color);
  border-radius: 14px;
  position: sticky;
  top: 12px;
  z-index: 100;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.25);
}

.lb-toolbar-spacer {
  flex: 1;
}

/* Mode Tabs */
.lb-tab-group {
  display: flex;
  gap: 4px;
  background: var(--bg-color);
  border-radius: 10px;
  padding: 3px;
}

.lb-tab {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  font-family: var(--ui-font-family);
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--sub-color);
  background: none;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.15s ease;
}

.lb-tab:hover {
  color: var(--text-color);
  background: rgba(255, 255, 255, 0.06);
}

.lb-tab.active {
  background: var(--main-color);
  color: var(--bg-color);
  font-weight: 600;
}

/* Value Pills */
.lb-value-group {
  display: flex;
  gap: 4px;
}

.lb-pill {
  padding: 5px 12px;
  font-family: var(--ui-font-family);
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--sub-color);
  background: var(--bg-color);
  border: 1px solid transparent;
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.15s ease;
}

.lb-pill:hover {
  color: var(--text-color);
  border-color: rgba(255, 255, 255, 0.1);
}

.lb-pill.active {
  background: rgba(var(--main-color-rgb, 226, 183, 20), 0.18);
  color: var(--main-color);
  border-color: rgba(var(--main-color-rgb, 226, 183, 20), 0.4);
  font-weight: 600;
}

/* Period Pills */
.lb-period-group {
  display: flex;
  gap: 4px;
}

.lb-pill-sm {
  padding: 4px 10px;
  font-family: var(--ui-font-family);
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--sub-color);
  background: var(--bg-color);
  border: 1px solid transparent;
  border-radius: 7px;
  cursor: pointer;
  transition: all 0.15s ease;
}

.lb-pill-sm:hover { color: var(--text-color); }

.lb-pill-sm.active {
  color: var(--main-color);
  background: rgba(var(--main-color-rgb, 226, 183, 20), 0.14);
  border-color: rgba(var(--main-color-rgb, 226, 183, 20), 0.35);
  font-weight: 600;
}

/* Language Select */
.lb-lang-wrap {
  display: flex;
  align-items: center;
  gap: 6px;
}

.lb-lang-label {
  color: var(--sub-color);
  font-size: 0.9rem;
}

.lb-lang-select {
  background: var(--bg-color);
  color: var(--text-color);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 8px;
  padding: 5px 28px 5px 10px;
  font-family: var(--ui-font-family);
  font-size: 0.82rem;
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6' viewBox='0 0 10 6'%3E%3Cpath d='M0 0l5 6 5-6z' fill='%23646669'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 8px center;
  outline: none;
  transition: border-color 0.15s;
}

.lb-lang-select:focus {
  border-color: var(--main-color);
}

/* ═══════════════════════════════════════════════
   TABLE CONTAINER
═══════════════════════════════════════════════ */

.lb-container {
  background: var(--sub-alt-color);
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.25);
}

/* ═══════════════════════════════════════════════
   SKELETON LOADER
═══════════════════════════════════════════════ */

.lb-loading {
  padding: 8px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.lb-skeleton-row {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 16px;
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.02);
}

.lb-skel {
  height: 14px;
  border-radius: 6px;
  background: linear-gradient(
    90deg,
    rgba(255, 255, 255, 0.04) 25%,
    rgba(255, 255, 255, 0.09) 50%,
    rgba(255, 255, 255, 0.04) 75%
  );
  background-size: 200% 100%;
  animation: lb-shimmer 1.5s infinite;
}

@keyframes lb-shimmer {
  0%   { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

.lb-skel-rank   { width: 32px; flex-shrink: 0; }
.lb-skel-avatar { width: 32px; height: 32px; border-radius: 50%; flex-shrink: 0; }
.lb-skel-name   { width: 140px; }
.lb-skel-wpm    { width: 60px; margin-left: auto; }
.lb-skel-acc    { width: 50px; }
.lb-skel-date   { width: 90px; }

/* ═══════════════════════════════════════════════
   RANKED TABLE
═══════════════════════════════════════════════ */

.lb-table {
  width: 100%;
  border-collapse: collapse;
  font-family: var(--ui-font-family);
}

/* Head row */
.lb-head-row {
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.lb-head-row th {
  padding: 14px 16px;
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--sub-color);
  text-align: left;
}

/* Body rows */
.lb-row {
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
  transition: background 0.12s ease;
}

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

.lb-row:hover {
  background: rgba(255, 255, 255, 0.03);
}

/* Top 3 glow effect */
.lb-row--top:nth-child(1) { background: rgba(255, 215, 0, 0.05); }
.lb-row--top:nth-child(2) { background: rgba(192, 192, 192, 0.04); }
.lb-row--top:nth-child(3) { background: rgba(205, 127, 50, 0.04); }

/* Own row highlight */
.lb-row--own {
  background: rgba(var(--main-color-rgb, 226, 183, 20), 0.08) !important;
  box-shadow: inset 3px 0 0 var(--main-color);
}

/* Cells */
.lb-table td {
  padding: 12px 16px;
  font-size: 0.9rem;
  color: var(--text-color);
  vertical-align: middle;
}

/* Rank badge */
.lb-rank-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 28px;
  font-size: 1.1rem;
}

.lb-rank-other {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--sub-color);
}

/* User link */
.lb-user-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
  color: var(--text-color);
  font-weight: 500;
  transition: color 0.15s;
}

.lb-user-link:hover {
  color: var(--main-color);
}

.lb-user-avatar {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  object-fit: cover;
  background: var(--bg-color);
}

/* WPM — large accent */
.lb-col-wpm {
  font-weight: 700;
  font-size: 1rem;
  color: var(--main-color) !important;
  font-family: var(--font-family, 'JetBrains Mono', monospace);
}

.lb-col-raw {
  color: var(--sub-color);
  font-size: 0.85rem;
}

/* Language badge */
.lb-lang-badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 20px;
  font-size: 0.72rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  background: rgba(255, 255, 255, 0.06);
  color: var(--sub-color);
}

.lb-col-date {
  font-size: 0.8rem;
  color: var(--sub-color);
  white-space: nowrap;
}

/* Column widths */
.lb-col-rank { width: 56px; text-align: center; }
.lb-col-wpm  { width: 90px; }
.lb-col-raw  { width: 75px; }
.lb-col-acc  { width: 65px; }
.lb-col-lang { width: 110px; }
.lb-col-date { width: 120px; }

/* ═══════════════════════════════════════════════
   EMPTY STATE
═══════════════════════════════════════════════ */

.lb-empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 16px;
  padding: 60px 24px;
  text-align: center;
}

.lb-empty-icon {
  font-size: 3.5rem;
  color: var(--sub-color);
  opacity: 0.4;
  animation: lb-ghost-float 3s ease-in-out infinite;
}

@keyframes lb-ghost-float {
  0%, 100% { transform: translateY(0); }
  50%       { transform: translateY(-8px); }
}

.lb-empty-text {
  font-family: var(--ui-font-family);
  font-size: 1rem;
  color: var(--sub-color);
  margin: 0;
}

/* ═══════════════════════════════════════════════
   ERROR STATE
═══════════════════════════════════════════════ */

.lb-error {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 48px 24px;
  text-align: center;
}

.lb-error-icon {
  font-size: 2.5rem;
  color: var(--error-color);
}

.lb-error-text {
  font-family: var(--ui-font-family);
  font-size: 0.95rem;
  color: var(--sub-color);
  margin: 0;
}

/* ═══════════════════════════════════════════════
   OWN RANK FLOATING BAR
═══════════════════════════════════════════════ */

.lb-own-rank {
  background: rgba(var(--main-color-rgb, 226, 183, 20), 0.1);
  border: 1px solid rgba(var(--main-color-rgb, 226, 183, 20), 0.3);
  border-radius: 12px;
  padding: 12px 20px;
  animation: lb-rank-reveal 0.35s ease forwards;
}

@keyframes lb-rank-reveal {
  from { opacity: 0; transform: translateY(6px); }
  to   { opacity: 1; transform: translateY(0); }
}

.lb-own-rank-inner {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--ui-font-family);
}

.lb-own-avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  border: 2px solid var(--main-color);
  object-fit: cover;
}

.lb-own-name {
  font-weight: 600;
  color: var(--text-color);
  font-size: 0.9rem;
}

.lb-own-label {
  color: var(--sub-color);
  font-size: 0.85rem;
  margin-left: auto;
}

.lb-own-position {
  font-weight: 700;
  color: var(--main-color);
  font-size: 1rem;
  font-family: var(--font-family, 'JetBrains Mono', monospace);
}

.lb-own-wpm {
  font-size: 0.85rem;
  color: var(--sub-color);
}

/* ═══════════════════════════════════════════════
   PAGINATION
═══════════════════════════════════════════════ */

.lb-pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
}

.lb-page-btn {
  width: 36px;
  height: 36px;
  background: var(--sub-alt-color);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 10px;
  color: var(--sub-color);
  font-size: 0.9rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.15s ease;
}

.lb-page-btn:hover:not(:disabled) {
  background: var(--main-color);
  color: var(--bg-color);
  border-color: var(--main-color);
  transform: translateY(-1px);
}

.lb-page-btn:disabled {
  opacity: 0.3;
  cursor: not-allowed;
}

.lb-page-info {
  font-family: var(--ui-font-family);
  font-size: 0.85rem;
  color: var(--sub-color);
  min-width: 56px;
  text-align: center;
}

/* ═══════════════════════════════════════════════
   RESPONSIVE
═══════════════════════════════════════════════ */

@media (max-width: 680px) {
  .lb-hero {
    flex-direction: column;
    text-align: center;
    padding: 24px;
  }

  .lb-toolbar {
    position: static;
    flex-direction: column;
    align-items: flex-start;
  }

  .lb-toolbar-spacer { display: none; }

  .lb-col-lang,
  .lb-col-date,
  .lb-col-raw {
    display: none;
  }

  .lb-page {
    padding: 20px 12px 60px;
  }
}

@media (max-width: 400px) {
  .lb-col-acc { display: none; }
}