/*
 * style.css
 * Retro-Futuristic Aesthetic for Animatrix Studio
 * Glassmorphism, neon red phosphor glows, high-contrast matte surfaces.
 */

@import url('https://fonts.googleapis.com/css2?family=Orbitron:wght@500;700;900&family=Space+Grotesk:wght@400;500;600;700&family=JetBrains+Mono:wght@400;500&display=swap');

:root {
  --bg-deep: #08080c;
  --bg-surface: #101018;
  --bg-elevated: #181824;
  --bg-hover: #222234;

  --border-subtle: #242436;
  --border-highlight: #3a3a52;

  --led-red: #ff1a00;
  --led-glow: rgba(255, 26, 0, 0.4);
  --led-dim: #3a0808;

  --accent-cyan: #00f0ff;
  --accent-cyan-glow: rgba(0, 240, 255, 0.35);
  --accent-amber: #ffaa00;
  --accent-pink: #ff007f;

  --text-primary: #f0f2ff;
  --text-secondary: #9094b0;
  --text-muted: #565972;

  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;

  --font-display: 'Orbitron', monospace;
  --font-sans: 'Space Grotesk', -apple-system, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  --shadow-panel: 0 8px 32px rgba(0, 0, 0, 0.65);
  --shadow-neon: 0 0 16px var(--led-glow);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  -webkit-font-smoothing: antialiased;
}

body {
  background-color: var(--bg-deep);
  color: var(--text-primary);
  font-family: var(--font-sans);
  height: 100vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  user-select: none;
  background-image:
    radial-gradient(circle at 50% 0%, rgba(255, 26, 0, 0.08) 0%, transparent 50%),
    linear-gradient(rgba(255, 255, 255, 0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
  background-size: 100% 100%, 32px 32px, 32px 32px;
}

/* Header */
.app-header {
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 20px;
  background: rgba(16, 16, 24, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-subtle);
  z-index: 100;
}

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

.brand-icon {
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #ff1a00, #990000);
  border-radius: var(--radius-sm);
  box-shadow: 0 0 12px var(--led-glow);
}

.brand-title {
  font-family: var(--font-display);
  font-size: 16px;
  letter-spacing: 2px;
  font-weight: 700;
  background: linear-gradient(90deg, #fff, #ff7a6b);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.brand-badge {
  font-family: var(--font-mono);
  font-size: 10px;
  padding: 2px 6px;
  background: rgba(255, 26, 0, 0.15);
  border: 1px solid rgba(255, 26, 0, 0.35);
  color: #ff5544;
  border-radius: var(--radius-sm);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.header-center-info {
  display: flex;
  align-items: center;
  gap: 16px;
}

.info-pill {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-secondary);
  background: var(--bg-surface);
  padding: 4px 10px;
  border-radius: 20px;
  border: 1px solid var(--border-subtle);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

button.info-pill {
  cursor: pointer;
  transition: all 0.15s ease;
}

button.info-pill:hover {
  background: var(--bg-hover);
  border-color: var(--border-highlight);
  color: var(--accent-cyan);
}

button.info-pill svg {
  transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
  color: var(--accent-cyan);
}

button.info-pill:hover svg {
  transform: rotate(60deg);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

/* Primary Layout: Main workspace with left sidebar & center canvas */
.workspace-main {
  flex: 1;
  display: flex;
  overflow: hidden;
  position: relative;
}

/* Sidebar Toolbars */
.tools-sidebar {
  width: 64px;
  background: rgba(16, 16, 24, 0.7);
  backdrop-filter: blur(8px);
  border-right: 1px solid var(--border-subtle);
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 12px 0;
  gap: 8px;
  z-index: 50;
}

.tool-group {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  width: 100%;
}

.tool-divider {
  width: 36px;
  height: 1px;
  background: var(--border-subtle);
  margin: 4px 0;
}

/* Tool Buttons */
.tool-btn {
  width: 44px;
  height: 44px;
  background: transparent;
  border: 1px solid transparent;
  border-radius: var(--radius-md);
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.18s ease;
  position: relative;
}

.tool-btn:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
  border-color: var(--border-highlight);
}

.tool-btn.active {
  background: rgba(255, 26, 0, 0.15);
  border-color: var(--led-red);
  color: #fff;
  box-shadow: 0 0 12px rgba(255, 26, 0, 0.35);
}

/* Photoshop-Style Foreground / Background Swatch Widget */
.swatch-widget {
  position: relative;
  width: 44px;
  height: 48px;
  margin: 2px 0;
  display: flex;
  align-items: center;
  justify-content: center;
}

.swatch-stack {
  position: relative;
  width: 34px;
  height: 34px;
}

.swatch-box {
  position: absolute;
  width: 24px;
  height: 24px;
  border-radius: 3px;
  border: 1.5px solid var(--border-highlight);
  cursor: pointer;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.7);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.18s cubic-bezier(0.16, 1, 0.3, 1), border-color 0.18s ease, box-shadow 0.18s ease;
  user-select: none;
}

.swatch-box:hover {
  border-color: #fff;
  transform: scale(1.08);
  z-index: 5 !important;
}

.swatch-fg {
  top: 0;
  left: 0;
  z-index: 2;
  background: var(--led-red);
  box-shadow: 0 0 10px rgba(255, 26, 0, 0.4);
}

.swatch-bg {
  bottom: 0;
  right: 0;
  z-index: 1;
  background: #0d0d14;
  border-color: rgba(255, 255, 255, 0.25);
}

.swatch-swap-btn {
  position: absolute;
  top: -2px;
  right: 1px;
  width: 15px;
  height: 15px;
  background: transparent;
  border: none;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  padding: 0;
  transition: color 0.15s ease, transform 0.15s ease;
  z-index: 4;
}

.swatch-swap-btn:hover {
  color: var(--text-primary);
  transform: scale(1.2) rotate(180deg);
}

.swatch-reset-btn {
  position: absolute;
  bottom: -2px;
  left: 1px;
  width: 14px;
  height: 14px;
  background: transparent;
  border: none;
  padding: 0;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 4;
  opacity: 0.6;
  transition: opacity 0.15s ease, transform 0.15s ease;
}

.swatch-reset-btn:hover {
  opacity: 1;
  transform: scale(1.15);
}

.swatch-reset-icon {
  width: 10px;
  height: 10px;
  position: relative;
}

.swatch-reset-icon::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 6px;
  height: 6px;
  background: #ffffff;
  border: 1px solid #000;
  z-index: 2;
}

.swatch-reset-icon::after {
  content: '';
  position: absolute;
  bottom: 0;
  right: 0;
  width: 6px;
  height: 6px;
  background: #0a0a10;
  border: 1px solid rgba(255, 255, 255, 0.5);
  z-index: 1;
}

/* Standard Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 6px 14px;
  border-radius: var(--radius-md);
  font-family: var(--font-sans);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  border: 1px solid transparent;
  text-decoration: none;
}

.btn-subtle {
  background: var(--bg-surface);
  border-color: var(--border-subtle);
  color: var(--text-primary);
}

.btn-subtle:hover {
  background: var(--bg-hover);
  border-color: var(--border-highlight);
}

.btn-primary {
  background: linear-gradient(135deg, #ff2a10, #cc1100);
  color: #fff;
  border-color: #ff5533;
  box-shadow: 0 0 14px rgba(255, 26, 0, 0.4);
}

.btn-primary:hover {
  background: linear-gradient(135deg, #ff442b, #dd1800);
  box-shadow: 0 0 20px rgba(255, 26, 0, 0.6);
  transform: translateY(-1px);
}

.btn-cyan {
  background: rgba(0, 240, 255, 0.12);
  border-color: rgba(0, 240, 255, 0.4);
  color: var(--accent-cyan);
}

.btn-cyan:hover {
  background: rgba(0, 240, 255, 0.22);
  box-shadow: 0 0 14px var(--accent-cyan-glow);
}

/* Studio Canvas Area */
.canvas-viewport {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  position: relative;
}

.top-control-bar {
  height: 48px;
  background: rgba(12, 12, 18, 0.6);
  border-bottom: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 16px;
  gap: 16px;
}

.control-bar-group {
  display: flex;
  align-items: center;
  gap: 12px;
}

/* PWM Modal & Controls */
.pwm-target-selector {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  margin-bottom: 16px;
}

.pwm-target-tab {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 8px 12px;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  color: var(--text-secondary);
  font-family: var(--font-display);
  font-size: 11px;
  letter-spacing: 0.5px;
  cursor: pointer;
  transition: all 0.18s ease;
}

.pwm-target-tab:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
  border-color: var(--border-highlight);
}

.pwm-target-tab.active {
  background: rgba(255, 26, 0, 0.12);
  border-color: var(--led-red);
  color: #fff;
  box-shadow: 0 0 12px rgba(255, 26, 0, 0.25);
}

.pwm-target-swatch {
  width: 14px;
  height: 14px;
  border-radius: 2px;
  border: 1px solid rgba(255, 255, 255, 0.4);
  background: var(--led-red);
}

.pwm-preview-card {
  background: radial-gradient(circle at center, rgba(30, 10, 10, 0.7) 0%, rgba(12, 12, 18, 0.95) 75%);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 18px 20px;
  margin-bottom: 16px;
  box-shadow: inset 0 0 20px rgba(0, 0, 0, 0.6);
}

.pwm-bead-preview-container {
  display: flex;
  align-items: center;
  gap: 18px;
}

.pwm-preview-led-bead {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: #110505;
  border: 2px solid #220808;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.8);
  transition: box-shadow 0.15s ease, background-color 0.15s ease, border-color 0.15s ease;
}

.pwm-bead-core {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--led-red);
  position: relative;
  transition: all 0.15s ease;
}

.pwm-preview-details {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.pwm-preview-target-name {
  font-family: var(--font-display);
  font-size: 11px;
  letter-spacing: 0.6px;
  color: var(--text-secondary);
  text-transform: uppercase;
}

.pwm-preview-stat-row {
  display: flex;
  align-items: baseline;
  gap: 8px;
}

.pwm-preview-percent {
  font-family: var(--font-mono);
  font-size: 24px;
  font-weight: 700;
  color: #fff;
  letter-spacing: -0.5px;
}

.pwm-preview-divider {
  color: var(--text-muted);
}

.pwm-preview-val {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--accent-cyan);
}

.pwm-number-input {
  width: 60px;
  padding: 4px 6px;
  font-family: var(--font-mono);
  font-size: 13px;
  text-align: right;
  font-weight: 600;
}

.pwm-modal-slider {
  appearance: none;
  width: 100%;
  height: 8px;
  border-radius: 4px;
  background: linear-gradient(90deg, #0d0d14 0%, var(--led-dim) 20%, var(--led-red) 75%, #ffffff 100%);
  outline: none;
  cursor: pointer;
  margin-top: 6px;
}

.pwm-modal-slider::-webkit-slider-thumb {
  appearance: none;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: #fff;
  border: 2px solid var(--led-red);
  box-shadow: 0 0 10px var(--led-red);
  cursor: pointer;
  transition: transform 0.1s ease;
}

.pwm-modal-slider::-webkit-slider-thumb:hover {
  transform: scale(1.18);
}

/* PWM Preset Grid with Filled Squares */
.pwm-preset-grid {
  display: grid;
  grid-template-columns: repeat(8, 1fr);
  gap: 6px;
}

.pwm-preset-tile {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 8px 4px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  cursor: pointer;
  transition: all 0.16s ease;
}

.pwm-preset-tile:hover {
  background: var(--bg-hover);
  border-color: var(--border-highlight);
  transform: translateY(-2px);
}

.pwm-preset-tile.active {
  background: rgba(255, 26, 0, 0.15);
  border-color: var(--led-red);
  box-shadow: 0 0 10px rgba(255, 26, 0, 0.3);
}

.pwm-preset-square {
  width: 24px;
  height: 24px;
  border-radius: 3px;
  background: #090910;
  border: 1px solid rgba(255, 255, 255, 0.15);
  position: relative;
  overflow: hidden;
  box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.8);
}

.pwm-square-fill {
  position: absolute;
  inset: 0;
  background: var(--led-red);
  transition: opacity 0.15s ease, background-color 0.15s ease;
}

.pwm-preset-label {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--text-secondary);
  font-weight: 500;
}

.pwm-preset-tile.active .pwm-preset-label {
  color: #fff;
  font-weight: 700;
}

.preset-pill {
  font-size: 10px;
  font-family: var(--font-mono);
  padding: 2px 6px;
  background: var(--bg-elevated);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  border-radius: var(--radius-sm);
  cursor: pointer;
}

.preset-pill:hover,
.preset-pill.active {
  background: rgba(255, 26, 0, 0.2);
  border-color: var(--led-red);
  color: #fff;
}

/* LED Size / Zoom Controls */
.led-size-control-box {
  display: flex;
  align-items: center;
  gap: 6px;
  background: var(--bg-surface);
  padding: 4px 10px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-subtle);
}

.control-box-label {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 4px;
}

.zoom-step-btn {
  background: var(--bg-elevated);
  border: 1px solid var(--border-subtle);
  color: var(--text-primary);
  width: 22px;
  height: 22px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  line-height: 1;
  cursor: pointer;
  transition: all 0.15s ease;
}

.zoom-step-btn:hover {
  background: var(--bg-hover);
  border-color: var(--border-highlight);
  color: var(--accent-cyan);
}

.zoom-slider {
  appearance: none;
  width: 80px;
  height: 5px;
  border-radius: 3px;
  background: linear-gradient(90deg, #1c1c2c, #00f0ff);
  outline: none;
  cursor: pointer;
}

.zoom-slider::-webkit-slider-thumb {
  appearance: none;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--accent-cyan);
  border: 2px solid #ffffff;
  box-shadow: 0 0 6px var(--accent-cyan-glow);
  cursor: pointer;
}

.zoom-val-badge {
  font-family: var(--font-mono);
  font-size: 11px;
  min-width: 32px;
  text-align: right;
  color: var(--accent-cyan);
}

/* Modals */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(4, 4, 8, 0.85);
  backdrop-filter: blur(10px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease;
}

.modal-overlay.active {
  opacity: 1;
  pointer-events: auto;
}

.modal-dialog {
  background: var(--bg-surface);
  border: 1px solid var(--border-highlight);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-panel);
  width: 90%;
  max-width: 580px;
  overflow: hidden;
  transform: translateY(12px) scale(0.98);
  transition: all 0.22s cubic-bezier(0.16, 1, 0.3, 1);
}

.modal-overlay.active .modal-dialog {
  transform: translateY(0) scale(1);
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  background: var(--bg-elevated);
  border-bottom: 1px solid var(--border-subtle);
}

.modal-header h3 {
  font-family: var(--font-display);
  font-size: 15px;
  letter-spacing: 1px;
}

.modal-close-btn {
  background: transparent;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 4px;
}

.modal-close-btn:hover {
  color: var(--text-primary);
}

.modal-body {
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  max-height: 70vh;
  overflow-y: auto;
}

.modal-footer {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 10px;
  padding: 14px 20px;
  background: var(--bg-elevated);
  border-top: 1px solid var(--border-subtle);
}

/* Forms */
.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-group label {
  font-size: 12px;
  font-weight: 500;
  color: var(--text-secondary);
}

.form-input,
.form-select,
.form-textarea {
  background: var(--bg-deep);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 8px 12px;
  color: var(--text-primary);
  font-family: var(--font-mono);
  font-size: 13px;
  outline: none;
  transition: border-color 0.15s ease;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  border-color: var(--accent-cyan);
  box-shadow: 0 0 8px rgba(0, 240, 255, 0.2);
}

.form-textarea {
  resize: vertical;
  min-height: 140px;
  font-size: 12px;
  line-height: 1.4;
}

/* Status Badges */
.status-badge {
  font-family: var(--font-mono);
  font-size: 11px;
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.status-badge.online {
  background: rgba(0, 255, 128, 0.15);
  color: #00ff80;
  border: 1px solid rgba(0, 255, 128, 0.3);
}

.status-badge.offline {
  background: rgba(255, 60, 60, 0.15);
  color: #ff5555;
  border: 1px solid rgba(255, 60, 60, 0.3);
}

.status-badge.pending {
  background: rgba(255, 170, 0, 0.15);
  color: #ffaa00;
  border: 1px solid rgba(255, 170, 0, 0.3);
}

/* Preset Cards Grid */
.preset-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 12px;
}

.preset-card {
  background: var(--bg-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 14px;
  cursor: pointer;
  transition: all 0.18s ease;
  display: flex;
  flex-direction: column;
  gap: 6px;
  text-align: left;
}

.preset-card:hover {
  border-color: var(--led-red);
  box-shadow: 0 0 12px rgba(255, 26, 0, 0.25);
  transform: translateY(-2px);
}

.preset-card-title {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-primary);
}

.preset-card-desc {
  font-size: 11px;
  color: var(--text-muted);
  line-height: 1.35;
}

/* Preset Studio Layout */
.preset-studio-layout {
  display: flex;
  flex-direction: column;
  gap: 16px;
  min-height: 400px;
}

.preset-nav-bar {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 8px;
  border-bottom: 1px solid var(--border-subtle);
  padding-bottom: 14px;
  width: 100%;
}

.preset-nav-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 8px 6px 9px;
  background: var(--bg-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  cursor: pointer;
  text-align: center;
  transition: all 0.18s ease;
  gap: 6px;
  color: var(--text-secondary);
  width: 100%;
}

.preset-nav-btn:hover {
  border-color: var(--border-highlight);
  background: var(--bg-hover);
  color: var(--text-primary);
}

.preset-nav-btn.active {
  border-color: var(--led-red);
  background: rgba(255, 26, 0, 0.12);
  box-shadow: 0 0 10px rgba(255, 26, 0, 0.25);
  color: #fff;
}

.preset-thumb-slot {
  width: 76px;
  height: 22px;
  background: #08080d;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 4px;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: inset 0 1px 4px rgba(0, 0, 0, 0.85);
  transition: all 0.2s ease;
}

.preset-thumb-canvas {
  display: block;
  image-rendering: pixelated;
  width: 100%;
  height: 100%;
}

.preset-nav-btn:hover .preset-thumb-slot {
  border-color: rgba(255, 255, 255, 0.28);
}

.preset-nav-btn.active .preset-thumb-slot {
  border-color: rgba(255, 26, 0, 0.65);
  box-shadow: inset 0 1px 4px rgba(0, 0, 0, 0.85), 0 0 8px rgba(255, 26, 0, 0.4);
}

.preset-nav-title {
  font-size: 11px;
  font-weight: 600;
  white-space: nowrap;
}

.preset-config-panel {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  overflow-y: auto;
}

.preset-pane {
  display: none;
  flex-direction: column;
  gap: 14px;
}

.preset-pane.active {
  display: flex;
}

.config-grid-2col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.config-help-text {
  font-size: 11px;
  color: var(--text-secondary);
  line-height: 1.4;
  background: rgba(0, 240, 255, 0.05);
  border-left: 3px solid var(--accent-cyan);
  padding: 8px 10px;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}

.slider-val-label {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 12px;
  color: var(--text-secondary);
}

.slider-val-badge {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--accent-cyan);
}

.total-frames-calc {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: rgba(0, 240, 255, 0.06);
  border: 1px solid rgba(0, 240, 255, 0.2);
  border-radius: var(--radius-sm);
  padding: 6px 10px;
  margin-top: 4px;
  font-family: var(--font-mono);
  font-size: 11px;
}

.total-frames-calc .calc-label {
  color: var(--text-secondary);
}

.total-frames-calc .calc-val {
  color: var(--accent-cyan);
  font-weight: 600;
  text-shadow: 0 0 8px rgba(0, 240, 255, 0.4);
}

/* Insertion & Mixing Modes */
.insertion-mode-section {
  background: rgba(14, 14, 24, 0.75);
  border: 1px solid rgba(0, 240, 255, 0.22);
  border-radius: var(--radius-md);
  padding: 10px 14px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 0;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.35);
}

/* Locked Generator Controls in Overlay Mode */
.form-group.input-locked {
  opacity: 0.65;
  transition: opacity 0.2s ease;
}

.form-group.input-locked input[type="range"] {
  cursor: not-allowed;
  opacity: 0.5;
}

.form-group.input-locked .slider-val-badge {
  background: rgba(251, 191, 36, 0.12) !important;
  border-color: rgba(251, 191, 36, 0.35) !important;
  color: #fbbf24 !important;
}

.form-group.input-locked .slider-val-badge::before {
  content: "🔒 ";
  font-size: 9px;
}

.insertion-mode-pills {
  display: flex;
  gap: 8px;
}

.mode-pill {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 7px 10px;
  background: var(--bg-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 11px;
  font-weight: 500;
  color: var(--text-secondary);
  transition: all 0.15s ease;
  user-select: none;
}

.mode-pill:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
  border-color: var(--border-highlight);
}

.mode-pill.active {
  background: rgba(0, 240, 255, 0.12);
  border-color: var(--accent-cyan);
  color: #fff;
  box-shadow: 0 0 10px var(--accent-cyan-glow);
}

.mode-pill input[type="radio"] {
  display: none;
}

.overlay-sub-options {
  display: flex;
  gap: 12px;
  padding-top: 8px;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

/* Welcome / Onboarding Modal: "Welcome to the world of tomorrow!" */
.welcome-dialog {
  max-width: 540px;
  background: linear-gradient(180deg, rgba(18, 18, 28, 0.96) 0%, rgba(10, 10, 16, 0.98) 100%);
  border: 1px solid rgba(0, 240, 255, 0.35);
  box-shadow: 0 0 35px rgba(0, 240, 255, 0.15), 0 20px 50px rgba(0, 0, 0, 0.85);
  border-radius: var(--radius-lg);
  position: relative;
  overflow: hidden;
}

.welcome-dialog::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--accent-cyan), var(--led-red), transparent);
}

.welcome-modal-header {
  border-bottom: 1px solid var(--border-subtle);
  padding: 12px 18px 10px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.welcome-header-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-display);
  font-size: 10px;
  letter-spacing: 1px;
  color: var(--accent-cyan);
}

.welcome-modal-body {
  padding: 24px 24px 22px;
  text-align: center;
}

.welcome-title {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 700;
  letter-spacing: 0.5px;
  color: #ffffff;
  margin: 0 0 10px;
  text-shadow: 0 0 14px rgba(0, 240, 255, 0.45);
}

.welcome-desc {
  font-size: 12px;
  line-height: 1.55;
  color: var(--text-secondary);
  margin: 0 auto 16px;
  max-width: 440px;
}

.welcome-question-banner {
  font-family: var(--font-display);
  font-size: 11px;
  letter-spacing: 0.8px;
  color: var(--accent-cyan);
  text-transform: uppercase;
  margin-bottom: 14px;
  padding: 6px 12px;
  background: rgba(0, 240, 255, 0.06);
  border: 1px solid rgba(0, 240, 255, 0.18);
  border-radius: var(--radius-sm);
  display: inline-block;
}

.welcome-cards-grid {
  display: flex;
  flex-direction: column;
  gap: 12px;
  text-align: left;
}

.welcome-choice-card {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 16px;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  color: inherit;
  text-decoration: none;
  width: 100%;
}

.welcome-choice-card:hover {
  background: var(--bg-hover);
  border-color: var(--border-highlight);
  transform: translateX(4px);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.5);
}

.welcome-choice-card.presets-card {
  border-color: rgba(255, 170, 0, 0.3);
  background: rgba(255, 170, 0, 0.04);
}

.welcome-choice-card.presets-card:hover {
  border-color: #ffaa00;
  background: rgba(255, 170, 0, 0.12);
  box-shadow: 0 0 16px rgba(255, 170, 0, 0.25);
}

.welcome-choice-card.random-card {
  border-color: rgba(0, 240, 255, 0.3);
  background: rgba(0, 240, 255, 0.04);
}

.welcome-choice-card.random-card:hover {
  border-color: var(--accent-cyan);
  background: rgba(0, 240, 255, 0.12);
  box-shadow: 0 0 16px rgba(0, 240, 255, 0.25);
}

.welcome-choice-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  background: var(--bg-elevated);
  border: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: var(--text-primary);
  transition: all 0.18s ease;
}

.welcome-choice-card:hover .welcome-choice-icon {
  transform: scale(1.08);
}

.blank-icon {
  color: #ffffff;
}

.presets-icon {
  color: #ffaa00;
  border-color: rgba(255, 170, 0, 0.4);
  background: rgba(255, 170, 0, 0.1);
}

.random-icon {
  color: var(--accent-cyan);
  border-color: rgba(0, 240, 255, 0.4);
  background: rgba(0, 240, 255, 0.1);
}

.welcome-choice-content {
  flex: 1;
}

.welcome-choice-title {
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.5px;
  color: #ffffff;
  margin-bottom: 2px;
}

.welcome-choice-subtitle {
  font-size: 11px;
  color: var(--text-secondary);
  line-height: 1.35;
}

.welcome-choice-arrow {
  font-size: 16px;
  color: var(--text-muted);
  transition: all 0.18s ease;
  padding-right: 4px;
}

.welcome-choice-card:hover .welcome-choice-arrow {
  color: var(--accent-cyan);
  transform: translateX(3px);
}