.sid-card {
  --sid-bg: radial-gradient(circle at 50% 50%, var(--bg-surface) 0%, var(--bg-page) 100%);
  --sid-card-bg: color-mix(in srgb, var(--bg-surface) 70%, transparent);
  --sid-border: var(--border-color);
  --sid-glow: color-mix(in srgb, var(--accent) 30%, transparent);
  --sid-text: var(--text-base);
  --sid-text-muted: var(--text-muted);
  --sid-gold: #fbbf24;
  --sid-gold-glow: rgba(251, 191, 36, 0.3);
  --sid-star: #fff;
  --sid-black: #000;
  --sid-dial-outer-bg: #090a16;
  --sid-dial-inner-bg: #040510;
  --sid-constellation-stroke: rgba(255, 255, 255, 0.15);
  --sid-sky-text: rgba(255, 255, 255, 0.4);
  --sid-indigo: #6366f1;
  --sid-second-hand: #dc2626;

  background: var(--sid-bg);
  color: var(--sid-text);
  padding: 2rem;
  border-radius: 1.5rem;
  box-shadow: var(--shadow-base);
  max-width: 1200px;
  margin: 0 auto;
  border: 1px solid var(--sid-border);
}



.sid-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 2.5rem;
  margin-top: 1.5rem;
}

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

.sid-header-title {
  font-size: 2.2rem;
  font-weight: 700;
  margin: 0 0 0.5rem;
  background: linear-gradient(135deg, var(--sid-text) 0%, var(--sid-gold) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}



.sid-header-desc {
  font-size: 1rem;
  color: var(--sid-text-muted);
  line-height: 1.6;
  margin: 0;
}

.sid-dial-container {
  display: flex;
  justify-content: center;
  align-items: center;
  position: relative;
  padding: 2rem;
}

.sid-svg-clock {
  width: 100%;
  max-width: 420px;
  height: auto;
  filter: drop-shadow(0 8px 16px rgba(0, 0, 0, 0.3));
}

.sid-sky-sphere {
  transform-origin: 200px 200px;
  transition: transform 0.5s cubic-bezier(0.1, 0.8, 0.2, 1);
}

.sid-hand-solar {
  transform-origin: 200px 200px;
  stroke: var(--sid-star);
  transition: transform 0.5s cubic-bezier(0.1, 0.8, 0.2, 1);
}

.sid-hand-sidereal {
  transform-origin: 200px 200px;
  stroke: var(--sid-gold);
  filter: drop-shadow(0 0 4px var(--sid-gold-glow));
  transition: transform 0.5s cubic-bezier(0.1, 0.8, 0.2, 1);
}

.sid-controls-column {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.sid-card-panel {
  background: var(--sid-card-bg);
  border: 1px solid var(--sid-border);
  border-radius: 1.25rem;
  padding: 1.5rem;
}

.sid-readout-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.75rem 0;
  border-bottom: 1px solid var(--sid-border);
}



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

.sid-readout-label {
  font-size: 0.95rem;
  color: var(--sid-text-muted);
}

.sid-readout-value {
  font-size: 1.15rem;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  color: var(--sid-text);
}

.sid-readout-value.sid-gold-text {
  color: var(--sid-gold);
}

.sid-control-group {
  margin-bottom: 1.25rem;
}

.sid-control-group:last-child {
  margin-bottom: 0;
}

.sid-label {
  display: block;
  font-size: 0.9rem;
  font-weight: 500;
  margin-bottom: 0.5rem;
  color: var(--sid-text-muted);
}

.sid-slider {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 6px;
  background: color-mix(in srgb, var(--sid-text) 10%, transparent);
  border-radius: 3px;
  outline: none;
}



.sid-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--sid-gold);
  cursor: pointer;
  box-shadow: 0 0 8px var(--sid-gold-glow);
}

.sid-btn-toggle {
  background: transparent;
  border: 1px solid var(--sid-border);
  color: var(--sid-text);
  padding: 0.5rem 1rem;
  border-radius: 0.5rem;
  cursor: pointer;
  font-weight: 500;
  font-size: 0.9rem;
  transition: all 0.2s ease;
}

.sid-btn-toggle:hover {
  background: color-mix(in srgb, var(--sid-gold) 10%, transparent);
  border-color: var(--sid-gold);
}

.sid-btn-toggle.active {
  background: var(--sid-gold);
  color: var(--sid-black);
  border-color: var(--sid-gold);
}

.sid-speed-btn-row {
  display: flex;
  gap: 0.5rem;
}

.sid-speed-btn-row button {
  flex: 1;
}

.sid-tip-box {
  background: rgba(251, 191, 36, 0.05);
  border-left: 3px solid var(--sid-gold);
  padding: 1rem;
  border-radius: 0 0.5rem 0.5rem 0;
  font-size: 0.9rem;
  line-height: 1.5;
  color: var(--sid-text-muted);
}

.sid-tip-title {
  font-weight: 600;
  color: var(--sid-gold);
  margin-bottom: 0.25rem;
}

.sid-constellation {
  stroke-dasharray: 2 2;
  stroke: var(--sid-constellation-stroke);
}



@keyframes twinkle {
  0%, 100% { opacity: 0.3; }
  50% { opacity: 1; }
}

.sid-star-blink {
  animation: twinkle 3s infinite ease-in-out;
}

.sid-btn-location {
  background: transparent;
  border: none;
  color: var(--sid-gold);
  cursor: pointer;
  padding: 0.25rem;
  border-radius: 0.25rem;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s ease;
}

.sid-btn-location:hover {
  background: color-mix(in srgb, var(--sid-gold) 10%, transparent);
  transform: scale(1.1);
}