/* ==========================================================================
   CosmoPulse — Master Design System & Styles
   ========================================================================== */

:root {
  --bg-primary: #0a0c14;
  --bg-secondary: rgba(18, 22, 36, 0.75);
  --accent-cyan: #00f3ff;
  --accent-pink: #ff007f;
  --accent-purple: #7000ff;
  --accent-emerald: #00ffaa;
  
  --text-main: #f0f4f8;
  --text-muted: #8a99ad;
  --border-glass: rgba(255, 255, 255, 0.12);
  --shadow-glow: 0 0 25px rgba(0, 243, 255, 0.25);
  --font-family: 'Outfit', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  user-select: none;
}

html, body {
  width: 100%;
  height: 100%;
  overflow: hidden;
  background-color: var(--bg-primary);
  color: var(--text-main);
  font-family: var(--font-family);
  -webkit-font-smoothing: antialiased;
}

#app {
  position: relative;
  width: 100vw;
  height: 100vh;
  overflow: hidden;
}

/* Canvases */
#particleCanvas, #visualizerCanvas {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  display: block;
}

#visualizerCanvas {
  pointer-events: none;
  z-index: 2;
  opacity: 0.85;
}

#particleCanvas {
  z-index: 1;
}

/* Top Navigation Bar */
.top-nav {
  position: absolute;
  top: 16px;
  left: 20px;
  right: 20px;
  z-index: 10;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 24px;
  background: var(--bg-secondary);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--border-glass);
  border-radius: 16px;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
}

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

.logo-icon {
  width: 38px;
  height: 38px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--accent-cyan), var(--accent-purple));
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  box-shadow: var(--shadow-glow);
  animation: pulseLogo 3s infinite ease-in-out;
}

@keyframes pulseLogo {
  0%, 100% { transform: scale(1); filter: brightness(1); }
  50% { transform: scale(1.05); filter: brightness(1.3); }
}

.brand-name {
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: 0.5px;
  background: linear-gradient(90deg, #ffffff, var(--accent-cyan));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.badge {
  font-size: 0.7rem;
  font-family: var(--font-mono);
  background: rgba(0, 243, 255, 0.15);
  color: var(--accent-cyan);
  padding: 2px 6px;
  border-radius: 6px;
  border: 1px solid rgba(0, 243, 255, 0.3);
  margin-left: 6px;
  -webkit-text-fill-color: var(--accent-cyan);
}

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

/* Buttons & Pills */
.icon-btn {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--border-glass);
  border-radius: 10px;
  color: var(--text-main);
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

.icon-btn:hover {
  background: rgba(255, 255, 255, 0.15);
  border-color: var(--accent-cyan);
  box-shadow: 0 0 15px rgba(0, 243, 255, 0.3);
  transform: translateY(-1px);
}

.pulse-glow {
  background: linear-gradient(135deg, rgba(0, 243, 255, 0.2), rgba(112, 0, 255, 0.2));
  border-color: var(--accent-cyan);
}

.preset-pill {
  padding: 6px 14px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-glass);
  border-radius: 20px;
  color: var(--text-muted);
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
}

.preset-pill:hover, .preset-pill.active {
  color: #ffffff;
  background: var(--accent-purple);
  border-color: var(--accent-purple);
  box-shadow: 0 0 12px rgba(112, 0, 255, 0.5);
}

/* Side Control Panel */
.glass-panel {
  position: absolute;
  top: 86px;
  right: 20px;
  width: 340px;
  max-height: calc(100vh - 180px);
  z-index: 20;
  background: var(--bg-secondary);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--border-glass);
  border-radius: 20px;
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.5);
  display: flex;
  flex-direction: column;
  transform: translateX(380px);
  transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  overflow: hidden;
}

.glass-panel.open {
  transform: translateX(0);
}

.panel-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 22px;
  border-bottom: 1px solid var(--border-glass);
}

.panel-header h2 {
  font-size: 1.1rem;
  font-weight: 700;
  color: #fff;
  letter-spacing: 0.5px;
}

.close-btn {
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 1.5rem;
  cursor: pointer;
  transition: color 0.2s ease;
}

.close-btn:hover {
  color: #fff;
}

.panel-body {
  padding: 20px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.panel-body::-webkit-scrollbar {
  width: 6px;
}
.panel-body::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.2);
  border-radius: 3px;
}

.control-section {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.control-section h3 {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 1.2px;
  color: var(--accent-cyan);
  font-weight: 700;
}

.theme-selector {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}

.theme-btn {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-glass);
  border-radius: 10px;
  color: var(--text-muted);
  font-size: 0.82rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
}

.theme-btn .swatch {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  display: inline-block;
}

.theme-btn:hover, .theme-btn.active {
  background: rgba(255, 255, 255, 0.12);
  color: #fff;
  border-color: var(--accent-cyan);
}

.control-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.control-group label {
  font-size: 0.85rem;
  color: var(--text-main);
  display: flex;
  justify-content: space-between;
}

.val-tag {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--accent-cyan);
}

input[type="range"] {
  -webkit-appearance: none;
  width: 100%;
  height: 6px;
  border-radius: 3px;
  background: rgba(255, 255, 255, 0.15);
  outline: none;
}

input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--accent-cyan);
  cursor: pointer;
  box-shadow: 0 0 10px var(--accent-cyan);
  transition: transform 0.1s ease;
}

input[type="range"]::-webkit-slider-thumb:hover {
  transform: scale(1.2);
}

select {
  width: 100%;
  padding: 8px 12px;
  background: rgba(20, 25, 40, 0.9);
  border: 1px solid var(--border-glass);
  border-radius: 10px;
  color: var(--text-main);
  font-family: var(--font-family);
  font-size: 0.85rem;
  outline: none;
  cursor: pointer;
}

select:focus {
  border-color: var(--accent-cyan);
}

.actions-section {
  gap: 10px;
  margin-top: 10px;
}

.action-btn {
  width: 100%;
  padding: 10px 16px;
  border-radius: 10px;
  font-size: 0.88rem;
  font-weight: 700;
  cursor: pointer;
  border: none;
  transition: all 0.2s ease;
}

.action-btn.primary {
  background: linear-gradient(135deg, var(--accent-cyan), var(--accent-purple));
  color: #fff;
  box-shadow: 0 4px 15px rgba(0, 243, 255, 0.3);
}

.action-btn.primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0, 243, 255, 0.5);
}

.action-btn.secondary {
  background: rgba(255, 255, 255, 0.08);
  color: var(--text-main);
  border: 1px solid var(--border-glass);
}

.action-btn.secondary:hover {
  background: rgba(255, 255, 255, 0.16);
}

.action-btn.success {
  background: linear-gradient(135deg, var(--accent-emerald), #00a876);
  color: #051810;
}

.action-btn.success:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0, 255, 170, 0.4);
}

/* Synth Touch Pads */
.synth-pad-container {
  position: absolute;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 10;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  background: var(--bg-secondary);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  padding: 12px 20px;
  border-radius: 20px;
  border: 1px solid var(--border-glass);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
}

.pad-label {
  font-size: 0.75rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.synth-pads {
  display: flex;
  gap: 8px;
}

.synth-pad {
  width: 44px;
  height: 54px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-glass);
  border-radius: 12px;
  color: var(--text-main);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s ease;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  padding-bottom: 8px;
}

.synth-pad:hover {
  background: rgba(0, 243, 255, 0.2);
  border-color: var(--accent-cyan);
  transform: translateY(-3px);
  box-shadow: 0 5px 15px rgba(0, 243, 255, 0.3);
}

.synth-pad:active, .synth-pad.active {
  background: var(--accent-cyan);
  color: #000;
  transform: translateY(0);
  box-shadow: 0 0 20px var(--accent-cyan);
}

/* Toast Message */
.toast {
  position: absolute;
  bottom: 110px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 10;
  background: rgba(10, 15, 30, 0.85);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(0, 243, 255, 0.3);
  padding: 10px 20px;
  border-radius: 30px;
  font-size: 0.85rem;
  color: #e0f7ff;
  pointer-events: none;
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.3);
  animation: fadeInOut 8s ease-in-out forwards;
}

@keyframes fadeInOut {
  0% { opacity: 0; transform: translate(-50%, 10px); }
  10% { opacity: 1; transform: translate(-50%, 0); }
  85% { opacity: 1; transform: translate(-50%, 0); }
  100% { opacity: 0; transform: translate(-50%, -10px); }
}

@media (max-width: 768px) {
  .top-nav {
    padding: 10px 14px;
  }
  .brand-name {
    font-size: 1rem;
  }
  .preset-pill {
    display: none;
  }
  .glass-panel {
    width: calc(100vw - 40px);
    right: 20px;
  }
  .synth-pad {
    width: 36px;
    height: 48px;
    font-size: 0.75rem;
  }
}