:root {
  --bg-dark: #0B0F19;
  --bg-card: rgba(18, 24, 38, 0.85);
  --bg-card-hover: rgba(28, 36, 56, 0.95);
  --border-color: rgba(255, 255, 255, 0.08);
  --border-accent: rgba(255, 255, 255, 0.15);
  
  --text-main: #F3F4F6;
  --text-muted: #94A3B8;
  --text-dim: #64748B;
  
  --green-pos: #10B981;
  --green-bg: rgba(16, 185, 129, 0.12);
  --red-neg: #F43F5E;
  --red-bg: rgba(244, 63, 94, 0.12);
  
  --lisa-accent: #F59E0B;
  --jennie-accent: #EC4899;
  --rose-accent: #38BDF8;
  --jisoo-accent: #A855F7;
  
  --font-sans: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg-dark);
  color: var(--text-main);
  min-height: 100vh;
  position: relative;
  overflow-x: hidden;
  line-height: 1.5;
}

/* Background Ambient Glow */
.glow-bg {
  position: fixed;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 1000px;
  height: 500px;
  background: radial-gradient(circle at 50% 20%, rgba(236, 72, 153, 0.15), rgba(56, 189, 248, 0.08), transparent 70%);
  filter: blur(80px);
  z-index: -1;
  pointer-events: none;
}

/* Header Container */
.header-container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 2.5rem 1.5rem 1.5rem;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 1.5rem;
}

.brand-section {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.brand-badge {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: #EC4899;
  text-transform: uppercase;
}

.brand-title {
  font-size: 2.25rem;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.gradient-text {
  background: linear-gradient(135deg, #EC4899 0%, #38BDF8 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.brand-subtitle {
  font-size: 0.9rem;
  color: var(--text-muted);
}

/* Toolbar & Controls */
.toolbar-section {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1rem;
}

.control-label {
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--text-dim);
  text-transform: uppercase;
  margin-bottom: 0.35rem;
  display: block;
}

.engine-toggle-card, .date-navigator-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  padding: 0.6rem 0.85rem;
  border-radius: 12px;
  backdrop-filter: blur(12px);
}

.toggle-switch-container {
  display: flex;
  background: rgba(0, 0, 0, 0.35);
  border-radius: 8px;
  padding: 3px;
  gap: 4px;
}

.toggle-btn {
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-family: var(--font-sans);
  font-size: 0.8rem;
  font-weight: 600;
  padding: 0.4rem 0.75rem;
  border-radius: 6px;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 0.4rem;
  transition: all 0.2s ease;
}

.toggle-btn.active {
  background: rgba(255, 255, 255, 0.12);
  color: #FFF;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.25);
}

.dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--green-pos);
  box-shadow: 0 0 8px var(--green-pos);
}

.date-controls {
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.nav-btn, .quick-btn {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  padding: 0.4rem 0.65rem;
  border-radius: 6px;
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s ease;
}

.nav-btn:hover, .quick-btn:hover {
  background: rgba(255, 255, 255, 0.15);
  border-color: var(--border-accent);
}

.select-wrapper {
  position: relative;
}

.date-dropdown {
  background: rgba(0, 0, 0, 0.45);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  padding: 0.4rem 0.75rem;
  border-radius: 6px;
  outline: none;
  cursor: pointer;
}

.date-dropdown:focus {
  border-color: #38BDF8;
}

/* Status Bar */
.status-bar {
  max-width: 1400px;
  margin: 0 auto 1.5rem;
  padding: 0 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.75rem;
  color: var(--text-dim);
}

.status-indicator {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.status-pulse {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--green-pos);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7); }
  70% { transform: scale(1); box-shadow: 0 0 0 6px rgba(16, 185, 129, 0); }
  100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(16, 185, 129, 0); }
}

/* Main Content */
.main-content {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 1.5rem 3rem;
  display: flex;
  flex-direction: column;
  gap: 2.5rem;
}

/* Aggregate Banner */
.aggregate-banner {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1rem;
}

.aggregate-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 14px;
  padding: 1.25rem 1.5rem;
  backdrop-filter: blur(12px);
  position: relative;
  overflow: hidden;
  transition: transform 0.2s ease, border-color 0.2s ease;
}

.aggregate-card:hover {
  transform: translateY(-2px);
  border-color: var(--border-accent);
}

.agg-label {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--text-dim);
  text-transform: uppercase;
}

.agg-val {
  font-size: 1.85rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  margin: 0.35rem 0 0.2rem;
  font-family: var(--font-sans);
}

.highlight-gold {
  color: #FBBF24;
}

.agg-sub {
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* Section Containers */
.section-container {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.section-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.section-header h2 {
  font-size: 1.35rem;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.section-tag {
  font-size: 0.75rem;
  font-family: var(--font-mono);
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--border-color);
  padding: 0.25rem 0.65rem;
  border-radius: 20px;
  color: var(--text-muted);
}

/* 4 Members Bento Grid */
.members-bento-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.25rem;
}

.member-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 1.5rem;
  backdrop-filter: blur(12px);
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  position: relative;
  overflow: hidden;
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}

.member-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.4);
}

.member-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: var(--accent-color, #EC4899);
}

.member-card-header {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.avatar-wrapper {
  position: relative;
  width: 54px;
  height: 54px;
  border-radius: 50%;
  padding: 2px;
  background: linear-gradient(135deg, var(--accent-color), rgba(255,255,255,0.2));
}

.member-avatar {
  width: 100%;
  height: 100%;
  border-radius: 50%;
  object-fit: cover;
  background: #1E293B;
}

.member-name-group {
  display: flex;
  flex-direction: column;
}

.member-name {
  font-size: 1.35rem;
  font-weight: 800;
  letter-spacing: -0.01em;
}

.member-subtitle {
  font-size: 0.75rem;
  color: var(--text-dim);
}

.member-metrics-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  padding: 0.85rem;
  background: rgba(0, 0, 0, 0.25);
  border-radius: 10px;
}

.metric-item {
  display: flex;
  flex-direction: column;
}

.metric-label {
  font-size: 0.68rem;
  font-weight: 700;
  color: var(--text-dim);
  text-transform: uppercase;
}

.metric-val {
  font-size: 1.3rem;
  font-weight: 800;
  font-family: var(--font-mono);
  margin-top: 0.15rem;
}

.pill-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  font-size: 0.72rem;
  font-weight: 700;
  font-family: var(--font-mono);
  padding: 0.15rem 0.45rem;
  border-radius: 6px;
  margin-top: 0.25rem;
  width: fit-content;
}

.pill-badge.pos {
  background: var(--green-bg);
  color: var(--green-pos);
}

.pill-badge.neg {
  background: var(--red-bg);
  color: var(--red-neg);
}

.pill-badge.neutral {
  background: rgba(255, 255, 255, 0.06);
  color: var(--text-dim);
}

/* Progress bars */
.progress-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.progress-header {
  display: flex;
  justify-content: space-between;
  font-size: 0.75rem;
}

.progress-bar-bg {
  height: 6px;
  background: rgba(255, 255, 255, 0.08);
  border-radius: 4px;
  overflow: hidden;
}

.progress-bar-fill {
  height: 100%;
  background: var(--accent-color);
  border-radius: 4px;
  transition: width 0.4s ease;
}

.member-top-song {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 0.75rem;
  border-top: 1px solid var(--border-color);
  font-size: 0.8rem;
}

.top-song-title {
  font-weight: 600;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 170px;
}

.top-song-streams {
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--text-muted);
}

/* Tables */
.table-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  overflow: hidden;
  backdrop-filter: blur(12px);
}

.table-responsive {
  width: 100%;
  overflow-x: auto;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
}

.data-table th {
  background: #111827;
  color: var(--text-muted);
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 0.85rem 1.25rem;
  border-bottom: 1px solid var(--border-color);
}

.data-table td {
  padding: 0.85rem 1.25rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
  font-size: 0.85rem;
}

.data-table tbody tr {
  transition: background 0.15s ease;
}

.data-table tbody tr:hover {
  background: rgba(255, 255, 255, 0.04);
}

.num-col {
  text-align: right;
  font-family: var(--font-mono);
}

.table-member-cell {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-weight: 700;
}

.table-avatar {
  width: 28px;
  height: 28px;
  border-radius: 50%;
}

.badge {
  font-size: 0.7rem;
  color: var(--text-dim);
}

.sheet-link-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.75rem;
  color: #38BDF8;
  text-decoration: none;
  font-weight: 600;
  padding: 0.25rem 0.5rem;
  border-radius: 4px;
  background: rgba(56, 189, 248, 0.1);
  transition: background 0.15s ease;
}

.sheet-link-btn:hover {
  background: rgba(56, 189, 248, 0.2);
}

/* ====================================================
   Comparative Rankings & Solo Intelligence
   ==================================================== */
.rankings-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(380px, 1fr));
  gap: 1.5rem;
  margin-top: 1rem;
}

.rank-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 14px;
  padding: 1.4rem;
  display: flex;
  flex-direction: column;
  gap: 1.1rem;
  position: relative;
  overflow: hidden;
  transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}

.rank-card:hover {
  transform: translateY(-2px);
  border-color: var(--border-accent);
  box-shadow: 0 12px 30px -10px rgba(0, 0, 0, 0.4);
}

.rank-card-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 0.75rem;
}

.rank-card-info {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.rank-card-title {
  font-size: 1.05rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--text-main);
}

.rank-card-desc {
  font-size: 0.78rem;
  color: var(--text-muted);
}

.rank-tabs {
  display: flex;
  background: rgba(0, 0, 0, 0.35);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 3px;
  gap: 3px;
}

.rank-tab-btn {
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-size: 0.72rem;
  font-weight: 600;
  padding: 0.35rem 0.65rem;
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.15s ease;
  white-space: nowrap;
}

.rank-tab-btn:hover {
  color: var(--text-main);
  background: rgba(255, 255, 255, 0.05);
}

.rank-tab-btn.active {
  background: rgba(255, 255, 255, 0.12);
  color: #FFFFFF;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.3);
}

.rank-list {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.rank-item {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  padding: 0.65rem 0.8rem;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid rgba(255, 255, 255, 0.04);
  border-radius: 10px;
  transition: background 0.15s ease, border-color 0.15s ease;
}

.rank-item:hover {
  background: rgba(255, 255, 255, 0.045);
  border-color: rgba(255, 255, 255, 0.09);
}

.rank-item-main {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
}

.rank-item-left {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.rank-pos {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: 800;
  font-family: var(--font-mono);
}

.rank-pos.gold {
  background: linear-gradient(135deg, #F59E0B, #B45309);
  color: #FFFFFF;
  box-shadow: 0 0 10px rgba(245, 158, 11, 0.4);
}

.rank-pos.silver {
  background: linear-gradient(135deg, #94A3B8, #475569);
  color: #FFFFFF;
}

.rank-pos.bronze {
  background: linear-gradient(135deg, #D97706, #78350F);
  color: #FFFFFF;
}

.rank-pos.sub {
  background: rgba(255, 255, 255, 0.07);
  color: var(--text-dim);
}

.rank-avatar {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  object-fit: cover;
  flex-shrink: 0;
}

.rank-details {
  display: flex;
  flex-direction: column;
}

.rank-name {
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--text-main);
}

.rank-meta {
  font-size: 0.72rem;
  color: var(--text-dim);
}

.rank-item-right {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  text-align: right;
}

.rank-val {
  font-size: 0.95rem;
  font-weight: 700;
  font-family: var(--font-mono);
  color: var(--text-main);
}

.rank-subval {
  font-size: 0.72rem;
  color: var(--text-muted);
}

.rank-bar-bg {
  height: 4px;
  background: rgba(255, 255, 255, 0.06);
  border-radius: 2px;
  overflow: hidden;
  width: 100%;
}

.rank-bar-fill {
  height: 100%;
  border-radius: 2px;
  transition: width 0.4s ease;
}

.loading-cell, .loading-placeholder {
  text-align: center;
  padding: 2.5rem;
  color: var(--text-dim);
  font-size: 0.9rem;
}

/* Footer */
.footer-container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 2rem 1.5rem 3rem;
  border-top: 1px solid var(--border-color);
  font-size: 0.8rem;
  color: var(--text-dim);
  text-align: center;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.footer-sub {
  font-size: 0.75rem;
  color: rgba(255, 255, 255, 0.3);
}

@media (max-width: 768px) {
  .header-container {
    flex-direction: column;
    align-items: flex-start;
  }
  .toolbar-section {
    width: 100%;
    justify-content: space-between;
  }
}