/* ============================================
   STUDY AURA — LEADERBOARD + PERSONAL STATS
   Premium dark-first, matches ZEROday theme.
   ============================================ */

/* ─────────────────────────────────────────────
   DASHBOARD LEADERBOARD SECTION WRAPPER
   ───────────────────────────────────────────── */

.leaderboard-section {
  margin-top: 1.5rem;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  align-items: start;
}

@media (max-width: 900px) {
  .leaderboard-section {
    grid-template-columns: 1fr;
  }
}

/* ─────────────────────────────────────────────
   CARD BASE
   ───────────────────────────────────────────── */

.lb-card,
.ps-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  transition: border-color 0.2s;
}

.lb-card:hover,
.ps-card:hover {
  border-color: var(--border-hover);
}

/* ─────────────────────────────────────────────
   CARD HEADER
   ───────────────────────────────────────────── */

.lb-card-header,
.ps-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.1rem 0.75rem;
  border-bottom: 1px solid var(--border);
  background: var(--bg2);
  gap: 0.6rem;
  flex-wrap: wrap;
}

.lb-card-title,
.ps-card-title {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  font-family: 'Bebas Neue', 'Space Grotesk', sans-serif;
  font-size: 1rem;
  letter-spacing: 0.07em;
  color: var(--text);
}

.lb-card-title svg,
.ps-card-title svg {
  color: var(--accent);
}

/* ─────────────────────────────────────────────
   LEADERBOARD TABS
   ───────────────────────────────────────────── */

.lb-tabs {
  display: flex;
  gap: 0.3rem;
  background: var(--bg3);
  border-radius: 8px;
  padding: 3px;
}

.lb-tab-btn {
  padding: 0.28rem 0.75rem;
  border-radius: 6px;
  border: none;
  background: transparent;
  color: var(--text3);
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.73rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  cursor: pointer;
  transition: all 0.18s;
}

.lb-tab-btn.lb-tab-active {
  background: var(--accent-grad);
  color: #fff;
  box-shadow: 0 2px 10px var(--accent-glow);
}

.lb-tab-btn:not(.lb-tab-active):hover {
  color: var(--text2);
  background: var(--border);
}

/* ─────────────────────────────────────────────
   MY RANK BADGE (inside leaderboard header)
   ───────────────────────────────────────────── */

.lb-my-rank-wrap {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.72rem;
  color: var(--text3);
  font-family: 'DM Mono', monospace;
}

#lb-my-rank {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 1rem;
  color: var(--text3);
  letter-spacing: 0.04em;
  transition: color 0.3s;
}

#lb-my-rank.lb-rank-visible {
  color: var(--accent);
}

/* ─────────────────────────────────────────────
   LEADERBOARD LIST
   ───────────────────────────────────────────── */

#leaderboard-list {
  padding: 0.5rem 0;
  max-height: 480px;
  overflow-y: auto;
  scrollbar-width: thin;
  scrollbar-color: var(--border-hover) transparent;
}

#leaderboard-list::-webkit-scrollbar { width: 3px; }
#leaderboard-list::-webkit-scrollbar-thumb {
  background: var(--border-hover);
  border-radius: 99px;
}

/* ── Row ───────────────────────────────────── */

.lb-row {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  padding: 0.65rem 1.1rem;
  border-bottom: 1px solid var(--border);
  transition: background 0.15s;
  animation: lb-row-in 0.35s ease both;
  animation-delay: var(--lb-delay, 0ms);
}

@keyframes lb-row-in {
  from { opacity: 0; transform: translateX(-10px); }
  to   { opacity: 1; transform: translateX(0); }
}

.lb-row:last-child { border-bottom: none; }
.lb-row:hover { background: var(--bg2); }

/* Highlight current user */
.lb-row.lb-row-me {
  background: var(--accent-glow);
  border-left: 3px solid var(--accent);
}
.lb-row.lb-row-me:hover { background: var(--accent-glow); filter: brightness(1.1); }

/* ── Medal / Rank number ──────────────────── */

.lb-medal-wrap {
  width: 28px;
  text-align: center;
  flex-shrink: 0;
}

.lb-medal {
  font-size: 1.25rem;
  line-height: 1;
  display: block;
}

.lb-rank-num {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 1.05rem;
  color: var(--text3);
  letter-spacing: 0.04em;
}

/* ── Avatar ───────────────────────────────── */

.lb-avatar-wrap { flex-shrink: 0; }

.lb-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  overflow: hidden;
  background: var(--bg3);
  border: 2px solid var(--border-hover);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: border-color 0.2s;
}

.lb-row-me .lb-avatar { border-color: var(--accent); }

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

/* ── Info ─────────────────────────────────── */

.lb-info {
  flex: 1;
  min-width: 0;
}

.lb-name {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.84rem;
  font-weight: 700;
  color: var(--text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  display: flex;
  align-items: center;
  gap: 0.3rem;
  flex-wrap: wrap;
}

.lb-sub {
  font-size: 0.7rem;
  color: var(--text3);
  margin-top: 1px;
  font-family: 'DM Mono', monospace;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.lb-you-tag {
  font-size: 0.58rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  background: var(--accent-grad);
  color: #fff;
  border-radius: 4px;
  padding: 1px 5px;
  vertical-align: middle;
  text-transform: uppercase;
  flex-shrink: 0;
}

/* Progress bar */
.lb-bar-wrap {
  height: 3px;
  background: var(--bg3);
  border-radius: 99px;
  margin-top: 5px;
  overflow: hidden;
}

.lb-bar {
  height: 100%;
  width: var(--lb-bar-w, 0%);
  background: var(--accent-grad);
  border-radius: 99px;
  animation: lb-bar-grow 0.7s cubic-bezier(0.22,1,0.36,1) both;
  animation-delay: calc(var(--lb-delay, 0ms) + 150ms);
}

@keyframes lb-bar-grow {
  from { width: 0%; }
  to   { width: var(--lb-bar-w, 0%); }
}

/* ── Hours ────────────────────────────────── */

.lb-hours {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  flex-shrink: 0;
  font-family: 'Bebas Neue', sans-serif;
  font-size: 1.15rem;
  color: var(--text);
  letter-spacing: 0.04em;
  line-height: 1;
}

.lb-hours-label {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.62rem;
  font-weight: 400;
  color: var(--text3);
  letter-spacing: 0.03em;
  margin-top: 1px;
}

/* ── Skeleton rows ────────────────────────── */

.lb-skeleton .lb-avatar,
.lb-skel-name,
.lb-skel-sub,
.lb-skel-hours {
  border-radius: 6px;
  background: var(--bg3);
  animation: lb-shimmer 1.4s ease-in-out infinite;
}

@keyframes lb-shimmer {
  0%, 100% { opacity: 0.4; }
  50%       { opacity: 0.8; }
}

.lb-skel-name  { height: 10px; width: 100px; margin-bottom: 5px; }
.lb-skel-sub   { height: 8px;  width: 70px; }
.lb-skel-hours { height: 18px; width: 34px; border-radius: 4px; }

/* ── Empty state ──────────────────────────── */

.lb-empty {
  padding: 2rem 1.5rem;
  text-align: center;
  color: var(--text3);
  font-size: 0.83rem;
  line-height: 1.6;
  font-family: 'Space Grotesk', sans-serif;
}

.lb-empty-icon {
  font-size: 2rem;
  margin-bottom: 0.5rem;
}

/* ─────────────────────────────────────────────
   PERSONAL STATS CARD
   ───────────────────────────────────────────── */

.ps-header-meta {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

/* Month navigator */
.ps-month-nav {
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.ps-nav-btn {
  width: 26px;
  height: 26px;
  border-radius: 6px;
  border: 1px solid var(--border-hover);
  background: var(--bg3);
  color: var(--text2);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  transition: all 0.15s;
  line-height: 1;
}

.ps-nav-btn:hover:not(:disabled) {
  background: var(--border-hover);
  color: var(--text);
}

.ps-nav-btn:disabled {
  opacity: 0.3;
  cursor: not-allowed;
}

#ps-month-label {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text2);
  min-width: 110px;
  text-align: center;
}

/* Summary row */
.ps-summary {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.6rem;
  padding: 0.8rem 1.1rem;
  border-bottom: 1px solid var(--border);
  background: var(--bg2);
}

.ps-summary-item {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.ps-summary-label {
  font-size: 0.67rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text3);
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
}

.ps-summary-val {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 1.45rem;
  color: var(--text);
  letter-spacing: 0.04em;
  line-height: 1;
}

.ps-summary-val.accent { color: var(--accent); }

/* Week grid */
#ps-week-grid {
  padding: 0.7rem 1.1rem 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
  max-height: 340px;
  overflow-y: auto;
  scrollbar-width: thin;
  scrollbar-color: var(--border-hover) transparent;
}

#ps-week-grid::-webkit-scrollbar { width: 3px; }
#ps-week-grid::-webkit-scrollbar-thumb {
  background: var(--border-hover);
  border-radius: 99px;
}

.ps-week-cell {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  animation: ps-cell-in 0.3s ease both;
  animation-delay: var(--ps-delay, 0ms);
}

@keyframes ps-cell-in {
  from { opacity: 0; transform: translateY(6px); }
  to   { opacity: 1; transform: translateY(0); }
}

.ps-week-label {
  font-family: 'DM Mono', monospace;
  font-size: 0.68rem;
  color: var(--text3);
  min-width: 110px;
  flex-shrink: 0;
}

.ps-week-current .ps-week-label {
  color: var(--accent);
  font-weight: 500;
}

.ps-week-bar-wrap {
  flex: 1;
  height: 6px;
  background: var(--bg3);
  border-radius: 99px;
  overflow: hidden;
}

.ps-week-bar {
  height: 100%;
  width: var(--ps-bar-w, 0%);
  background: var(--accent-grad);
  border-radius: 99px;
  animation: ps-bar-grow 0.65s cubic-bezier(0.22,1,0.36,1) both;
  animation-delay: calc(var(--ps-delay, 0ms) + 120ms);
}

.ps-week-current .ps-week-bar {
  background: linear-gradient(90deg, var(--green), var(--teal));
  box-shadow: 0 0 8px var(--green);
}

@keyframes ps-bar-grow {
  from { width: 0%; }
  to   { width: var(--ps-bar-w, 0%); }
}

.ps-week-hours {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 0.9rem;
  color: var(--text2);
  min-width: 32px;
  text-align: right;
  letter-spacing: 0.04em;
}

.ps-week-current .ps-week-hours { color: var(--green); }

.ps-loading {
  padding: 1.5rem;
  text-align: center;
  color: var(--text3);
  font-size: 0.8rem;
  font-family: 'Space Grotesk', sans-serif;
  animation: lb-shimmer 1.4s infinite;
}

/* ─────────────────────────────────────────────
   REALTIME PULSE INDICATOR
   ───────────────────────────────────────────── */

.lb-live-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--green);
  flex-shrink: 0;
  animation: live-pulse 2s ease-in-out infinite;
  box-shadow: 0 0 6px var(--green);
}

@keyframes live-pulse {
  0%, 100% { opacity: 1;   transform: scale(1); }
  50%       { opacity: 0.5; transform: scale(0.8); }
}

.lb-live-label {
  font-family: 'DM Mono', monospace;
  font-size: 0.64rem;
  color: var(--green);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

/* ─────────────────────────────────────────────
   MOBILE
   ───────────────────────────────────────────── */

@media (max-width: 600px) {
  .lb-row { padding: 0.55rem 0.85rem; gap: 0.5rem; }
  .lb-hours { font-size: 0.95rem; }
  .lb-medal { font-size: 1rem; }
  .ps-week-label { min-width: 80px; font-size: 0.62rem; }
  .ps-summary { grid-template-columns: 1fr 1fr; gap: 0.4rem; }
  .lb-card-header, .ps-card-header { flex-wrap: wrap; gap: 0.5rem; }
}