:root {
  --bg-dark: #0d1117;
  --bg-card: rgba(22, 27, 34, 0.75);
  --border-card: rgba(255, 255, 255, 0.08);
  --accent-green: #10b981;
  --accent-blue: #3b82f6;
  --accent-purple: #8b5cf6;
  --accent-pink: #ec4899;
  --accent-amber: #f59e0b;
  --text-main: #f3f4f6;
  --text-muted: #9ca3af;
  --font-body: 'Outfit', sans-serif;
  --font-display: 'Space Grotesk', sans-serif;
}

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

body {
  background-color: var(--bg-dark);
  background-image: 
    radial-gradient(at 10% 10%, rgba(139, 92, 246, 0.15) 0px, transparent 50%),
    radial-gradient(at 90% 90%, rgba(16, 185, 129, 0.12) 0px, transparent 50%);
  color: var(--text-main);
  font-family: var(--font-body);
  min-height: 100vh;
  padding: 20px;
  overflow-x: hidden;
}

#app {
  max-width: 960px;
  margin: 0 auto;
}

.navbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 24px;
  padding-bottom: 16px;
  border-bottom: 1fr solid var(--border-card);
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand .icon {
  font-size: 2rem;
  background: rgba(16, 185, 129, 0.2);
  padding: 8px;
  border-radius: 12px;
  box-shadow: 0 0 20px rgba(16, 185, 129, 0.2);
}

.brand-text h1 {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  background: linear-gradient(135deg, #34d399, #60a5fa);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

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

.user-pill {
  display: flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-card);
  padding: 6px 14px;
  border-radius: 20px;
  font-size: 0.85rem;
}

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

.grid-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}

.card {
  background: var(--bg-card);
  backdrop-filter: blur(12px);
  border: 1px solid var(--border-card);
  border-radius: 16px;
  padding: 20px;
  transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}

.card:hover {
  transform: translateY(-2px);
  border-color: rgba(255, 255, 255, 0.2);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
}

.card-header {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 12px;
}

.card-icon {
  font-size: 1.2rem;
}

.card-title {
  font-size: 0.85rem;
  color: var(--text-muted);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.card-value {
  font-family: var(--font-display);
  font-size: 1.8rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 4px;
}

.card-subtext {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.grid-panels {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-bottom: 24px;
}

@media (max-width: 768px) {
  .grid-panels {
    grid-template-columns: 1fr;
  }
}

.panel-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
}

.panel-header h2 {
  font-size: 1.1rem;
  font-weight: 600;
}

.badge {
  font-size: 0.75rem;
  padding: 4px 10px;
  border-radius: 12px;
  background: rgba(59, 130, 246, 0.2);
  color: #93c5fd;
  border: 1px solid rgba(59, 130, 246, 0.3);
}

.now-playing-box {
  display: flex;
  gap: 16px;
  align-items: center;
  background: rgba(255, 255, 255, 0.03);
  padding: 16px;
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.05);
  margin-bottom: 16px;
}

.media-art {
  font-size: 2.2rem;
  background: rgba(139, 92, 246, 0.2);
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 12px;
}

.media-info {
  flex: 1;
}

.media-title {
  font-weight: 600;
  font-size: 0.95rem;
  margin-bottom: 2px;
}

.media-artist {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 8px;
}

.progress-bar-container {
  height: 4px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 2px;
  overflow: hidden;
  margin-bottom: 4px;
}

.progress-bar {
  height: 100%;
  background: linear-gradient(90deg, var(--accent-purple), var(--accent-pink));
  transition: width 0.3s ease;
}

.media-time {
  font-size: 0.7rem;
  color: var(--text-muted);
}

.history-list-title {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 8px;
  text-transform: uppercase;
}

.history-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
  max-height: 160px;
  overflow-y: auto;
}

.history-list li {
  font-size: 0.85rem;
  padding: 8px 12px;
  background: rgba(255, 255, 255, 0.02);
  border-radius: 8px;
  display: flex;
  justify-content: space-between;
}

.history-list .empty-item {
  color: var(--text-muted);
  font-style: italic;
  justify-content: center;
}

.chart-container {
  margin-bottom: 16px;
}

canvas {
  width: 100%;
  height: 140px;
  background: rgba(0, 0, 0, 0.2);
  border-radius: 8px;
}

.log-box {
  background: #05070a;
  border-radius: 8px;
  padding: 10px;
  font-family: monospace;
  font-size: 0.75rem;
  max-height: 100px;
  overflow-y: auto;
  color: #a7f3d0;
  border: 1px solid rgba(255, 255, 255, 0.05);
}

.log-item {
  margin-bottom: 4px;
  line-height: 1.3;
}

.controls {
  display: flex;
  gap: 12px;
  justify-content: flex-end;
}

.btn {
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.9rem;
  padding: 10px 18px;
  border-radius: 10px;
  border: none;
  cursor: pointer;
  transition: all 0.2s ease;
}

.btn-primary {
  background: linear-gradient(135deg, #10b981, #059669);
  color: #fff;
  box-shadow: 0 4px 14px rgba(16, 185, 129, 0.3);
}

.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(16, 185, 129, 0.4);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.1);
  color: var(--text-main);
  border: 1px solid var(--border-card);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.15);
}