/* ============================================
   PSYCH.CSS — Aperture Cosmology shared styles
   Used by: aperture-dial.html, ganzflicker.html
   ============================================ */

/* ===== RESET ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

/* ===== BASE VARIABLES ===== */
:root {
  --bg-primary: #0c0a10;
  --bg-secondary: #12101a;
  --bg-panel: #181520;
  --border: #2a2538;
  --border-faint: #1e1a28;
  --text-primary: #dcd8e4;
  --text-secondary: #908aa0;
  --text-dim: #5c5670;
  --accent: #c9a84c;
  --accent-dim: #8a7234;
  --accent-glow: rgba(201, 168, 76, 0.3);
  --accent-subtle: rgba(201, 168, 76, 0.08);
  --red-accent: #c9512f;
  --font-heading: 'Syncopate', sans-serif;
  --font-body: 'Space Grotesk', sans-serif;
  --font-mono: 'IBM Plex Mono', monospace;
}

/* ===== BODY ===== */
body {
  background: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-weight: 300;
  min-height: 100vh;
  overflow-x: hidden;
}

body::before {
  content: '';
  position: fixed;
  top: -20%; left: 30%;
  width: 60%; height: 60%;
  background: radial-gradient(ellipse, rgba(168, 85, 200, 0.025) 0%, transparent 70%);
  pointer-events: none;
  z-index: 0;
}

/* ===== CONTAINER ===== */
.container {
  max-width: 900px;
  margin: 0 auto;
  padding: 2rem 1.5rem;
  position: relative;
  z-index: 1;
}

/* ===== BACK NAV ===== */
.back-nav {
  max-width: 900px;
  margin: 0 auto;
  padding: 20px 1.5rem 0;
  position: relative;
  z-index: 2;
}
.back-link {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 400;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent-dim);
  text-decoration: none;
  transition: color 0.3s ease;
}
.back-link:hover { color: var(--accent); }
.back-link::before { content: '← '; }

/* ===== HEADER ===== */
header {
  text-align: center;
  margin-bottom: 2rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--border);
}

.header-glyph {
  width: 52px;
  height: 46px;
  margin: 0 auto 0.6rem;
  opacity: 0.75;
  transition: opacity 0.4s;
}
.header-glyph:hover { opacity: 1; }

header h1 {
  font-family: var(--font-heading);
  font-weight: 400;
  font-size: 1.85rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-primary);
  margin-bottom: 0.3rem;
}
header h1 span { color: var(--accent); }

header .subtitle {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-dim);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

/* ===== WARNING BOX (inline) ===== */
.warning-box {
  background: rgba(201, 81, 47, 0.06);
  border: 1px solid rgba(201, 81, 47, 0.2);
  border-radius: 6px;
  padding: 0.8rem 1rem;
  font-size: 0.8rem;
  color: var(--red-accent);
  line-height: 1.5;
}
.warning-box strong { color: #e06040; }

/* ===== OVERLAY TEXT ===== */
.overlay-text {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--text-dim);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-top: 1rem;
}

/* ===== FULLSCREEN BUTTON ===== */
.fs-btn {
  position: absolute;
  top: 12px;
  right: 12px;
  width: 32px;
  height: 32px;
  background: rgba(12,10,16,0.7);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text-dim);
  font-size: 14px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.25s;
  z-index: 10;
  pointer-events: all;
}
.fs-btn:hover { color: var(--accent); border-color: var(--accent-dim); background: rgba(12,10,16,0.9); }

/* ===== STATE BAR ===== */
.state-bar {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1.5rem;
  margin-bottom: 2rem;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-dim);
  letter-spacing: 0.04em;
  flex-wrap: wrap;
}

.state-bar .dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--accent-dim);
  transition: background 0.4s, box-shadow 0.4s;
}
.state-bar .dot.active {
  background: var(--accent);
  box-shadow: 0 0 8px var(--accent-glow);
}
.state-bar .freq-display { color: var(--text-secondary); }

/* ===== CONTROLS ===== */
.controls { display: grid; gap: 1.5rem; }

/* ===== TOGGLE BUTTON ===== */
.toggle-wrap {
  display: flex;
  justify-content: center;
  margin: 1.5rem 0;
}

.toggle-btn {
  font-family: var(--font-heading);
  font-size: 0.72rem;
  font-weight: 400;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  background: transparent;
  border: 1px solid var(--accent);
  color: var(--accent);
  padding: 0.8rem 2.5rem;
  border-radius: 4px;
  cursor: pointer;
  transition: all 0.3s ease;
}
.toggle-btn:hover {
  background: var(--accent-subtle);
  box-shadow: 0 0 20px rgba(201, 168, 76, 0.15);
}
.toggle-btn.playing {
  background: rgba(201, 168, 76, 0.1);
  box-shadow: 0 0 20px rgba(201, 168, 76, 0.2);
  animation: pulse-border 3s ease-in-out infinite;
}

@keyframes pulse-border {
  0%, 100% { border-color: var(--accent); }
  50% { border-color: var(--accent-dim); }
}

/* ===== CONTROL GROUP ===== */
.control-group {
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1.2rem 1.4rem;
}
.control-group h3 {
  font-family: var(--font-heading);
  font-weight: 400;
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-primary);
  margin-bottom: 0.2rem;
}
.control-group .group-desc {
  font-size: 0.72rem;
  color: var(--text-dim);
  margin-bottom: 1rem;
  line-height: 1.4;
  letter-spacing: 0.02em;
}

/* ===== WAVE GRID ===== */
.wave-grid {
  display: grid;
  gap: 0.5rem;
}
.wave-btn {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0.6rem 0.4rem;
  cursor: pointer;
  text-align: center;
  transition: all 0.25s ease;
  color: var(--text-secondary);
}
.wave-btn:hover { border-color: var(--accent-dim); background: var(--accent-subtle); }
.wave-btn.active { border-color: var(--accent); background: rgba(201, 168, 76, 0.08); color: var(--accent); }
.wave-btn .wave-name { font-family: var(--font-body); font-weight: 500; font-size: 0.85rem; display: block; margin-bottom: 0.15rem; }
.wave-btn .wave-range { font-family: var(--font-mono); font-size: 0.6rem; color: var(--text-dim); display: block; }
.wave-btn.active .wave-range { color: var(--accent-dim); }
.wave-btn .wave-desc { font-size: 0.6rem; color: var(--text-dim); margin-top: 0.25rem; line-height: 1.3; display: block; }

/* ===== SLIDERS ===== */
.slider-row {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 0.8rem;
}
.slider-row:last-child { margin-bottom: 0; }
.slider-label { font-size: 0.8rem; color: var(--text-secondary); min-width: 90px; flex-shrink: 0; }
.slider-value { font-family: var(--font-mono); font-size: 0.75rem; color: var(--accent-dim); min-width: 50px; text-align: right; flex-shrink: 0; }

input[type="range"] {
  -webkit-appearance: none; appearance: none;
  flex: 1; height: 3px;
  background: var(--border); border-radius: 2px; outline: none;
}
input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none; width: 14px; height: 14px;
  border-radius: 50%; background: var(--accent);
  cursor: pointer; border: 2px solid var(--bg-primary);
  box-shadow: 0 0 4px var(--accent-glow);
}
input[type="range"]::-moz-range-thumb {
  width: 14px; height: 14px; border-radius: 50%;
  background: var(--accent); cursor: pointer;
  border: 2px solid var(--bg-primary);
  box-shadow: 0 0 4px var(--accent-glow);
}

/* ===== FOOTER ===== */
footer {
  text-align: center;
  margin-top: 3rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
  font-size: 0.7rem;
  color: var(--text-dim);
  line-height: 1.6;
}
footer a { color: var(--accent-dim); text-decoration: none; }
footer a:hover { color: var(--accent); }

/* ===== KBD HINT ===== */
.kbd-hint {
  margin-top: 0.6rem;
  font-size: 0.65rem;
  color: var(--text-dim);
  opacity: 0.7;
}
.kbd-hint kbd {
  display: inline-block;
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: 3px;
  padding: 0.1rem 0.35rem;
  font-family: var(--font-mono);
  font-size: 0.55rem;
}

/* ===== DISCLAIMER ===== */
.instrument-disclaimer {
  text-align: center;
  font-size: 0.68rem;
  color: var(--text-dim);
  font-style: italic;
  margin-top: 1.2rem;
  letter-spacing: 0.02em;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 600px) {
  .kbd-hint { display: none; }
}