/* Ariadne Clew Labyrinth Theme */

/* Light Mode */
:root {
  --background: radial-gradient(circle at center, #fdfdfd 0%, #e8ecf5 100%);
  --text-color: #212529;
  --accent: #d4a017;        /* gold thread */
  --accent-glow: rgba(212, 160, 23, 0.6);
  --panel-bg: rgba(255, 255, 255, 0.8);
  --panel-border: rgba(212, 160, 23, 0.4);
}

/* Dark Mode */
[data-theme='dark'] {
  --background: radial-gradient(circle at center, #0d1117 0%, #1a1f2b 100%);
  --text-color: #e6e7ea;
  --accent: #8f6aff;        /* violet thread */
  --accent-glow: rgba(143, 106, 255, 0.6);
  --panel-bg: rgba(20, 24, 33, 0.9);
  --panel-border: rgba(143, 106, 255, 0.4);
}

/* Base layout */
body {
  margin: 0;
  min-height: 100vh;
  background: var(--background);
  color: var(--text-color);
  background-attachment: fixed;
  background-size: cover;
  position: relative;
  overflow-x: hidden;
}

/* Subtle labyrinth pattern overlay */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  background: repeating-radial-gradient(
    circle at center,
    transparent 0px,
    transparent 40px,
    rgba(255, 215, 0, 0.08) 41px,
    transparent 80px
  );
  opacity: 0.3;
  pointer-events: none;
  animation: labyrinthPulse 8s linear infinite;
}

@keyframes labyrinthPulse {
  0% { opacity: 0.25; }
  50% { opacity: 0.45; }
  100% { opacity: 0.25; }
}

/* Panels */
.panel {
  background: var(--panel-bg);
  border: 1px solid var(--panel-border);
  border-radius: 12px;
  box-shadow: 0 0 15px var(--accent-glow);
  backdrop-filter: blur(8px);
  transition: box-shadow 0.3s ease;
}

.panel:hover {
  box-shadow: 0 0 25px var(--accent-glow);
}

/* Buttons as glowing thread nodes */
button {
  border: 1px solid var(--panel-border);
  background: transparent;
  color: var(--text-color);
  padding: 0.6rem 1.2rem;
  border-radius: 999px;
  font-weight: 500;
  position: relative;
  overflow: hidden;
  transition: color 0.3s ease, box-shadow 0.3s ease;
}

button::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, var(--accent), transparent 60%);
  opacity: 0.2;
  transition: opacity 0.3s ease;
}

button:hover {
  color: var(--accent);
  box-shadow: 0 0 12px var(--accent-glow);
}

button:hover::before {
  opacity: 0.5;
}

/* Theme toggle slider glow */
.slider {
  background-color: var(--panel-border);
  box-shadow: 0 0 6px var(--accent-glow);
}

input:checked + .slider {
  background-color: var(--accent);
  box-shadow: 0 0 12px var(--accent-glow);
}