/* ==========================================================================
   Fijate Tools - Visualizador de Audio 3D & Reactor Sonoro
   Estilos CSS con Glassmorphism, Paletas Neón y Controles Táctiles Responsivos
   ========================================================================== */

:root {
  --bg-app: #09090f;
  --bg-card: rgba(18, 18, 28, 0.85);
  --bg-card-border: rgba(255, 255, 255, 0.08);
  --bg-card-hover: rgba(26, 26, 42, 0.95);
  
  --text-main: #f1f5f9;
  --text-muted: #94a3b8;
  --text-dim: #64748b;

  --accent-cyan: #00f0ff;
  --accent-pink: #ff007f;
  --accent-purple: #7928ca;
  --accent-green: #00ff66;
  --accent-amber: #ffaa00;

  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-heading: 'Outfit', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-pill: 9999px;

  --shadow-glow-cyan: 0 0 24px rgba(0, 240, 255, 0.25);
  --shadow-glow-pink: 0 0 24px rgba(255, 0, 127, 0.25);
  --shadow-card: 0 10px 30px -5px rgba(0, 0, 0, 0.6);

  --transition-fast: 0.18s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 0.28s cubic-bezier(0.4, 0, 0.2, 1);
}

[data-theme="light"] {
  --bg-app: #f4f6fb;
  --bg-card: rgba(255, 255, 255, 0.92);
  --bg-card-border: rgba(0, 0, 0, 0.08);
  --bg-card-hover: rgba(255, 255, 255, 1);
  --text-main: #0f172a;
  --text-muted: #475569;
  --text-dim: #94a3b8;
  --shadow-card: 0 10px 30px -5px rgba(0, 0, 0, 0.08);
}

/* Reset y estructura base */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  background-color: var(--bg-app);
  color: var(--text-main);
  font-family: var(--font-body);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: clip;
  width: 100%;
  max-width: 100%;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.tool-layout {
  max-width: 1640px;
  margin: 1.25rem auto 3.5rem;
  padding: 0 1.25rem;
  width: 100%;
  flex: 1;
}

.tool-with-sidebar {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  width: 100%;
}

@media (min-width: 1600px) {
  .tool-with-sidebar {
    grid-template-columns: minmax(0, 1fr) 320px;
  }
}

.tool-main-content {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  min-width: 0;
  width: 100%;
}

/* ==========================================================================
   Escenario 3D Principal & HUD Flotante
   ========================================================================== */
.visualizer-stage-wrapper {
  position: relative;
  width: 100%;
  height: 640px;
  min-height: 520px;
  max-height: 80vh;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: radial-gradient(circle at center, #120d20 0%, #05030a 100%);
  border: 1px solid var(--bg-card-border);
  box-shadow: 0 20px 50px -10px rgba(0, 0, 0, 0.85), 0 0 1px 1px var(--bg-card-border);
}

@media (min-width: 1920px) {
  .tool-layout {
    max-width: 1800px;
  }
  .visualizer-stage-wrapper {
    height: 720px;
  }
}

@media (max-width: 1024px) {
  .visualizer-stage-wrapper {
    height: 480px;
  }
}

@media (max-width: 768px) {
  .tool-layout {
    padding: 0 0.75rem;
  }
  .visualizer-stage-wrapper {
    height: 400px;
    border-radius: var(--radius-md);
  }
}

.visualizer-canvas-container {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  cursor: grab;
}

.visualizer-canvas-container:active {
  cursor: grabbing;
}

.visualizer-canvas-container canvas {
  display: block;
  width: 100% !important;
  height: 100% !important;
}

/* Dropzone Overlay */
.file-dropzone-overlay {
  position: absolute;
  inset: 0;
  background: rgba(5, 3, 10, 0.85);
  backdrop-filter: blur(10px);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-normal);
  z-index: 40;
}

.file-dropzone-overlay.drag-over {
  opacity: 1;
  pointer-events: auto;
}

.dropzone-box {
  padding: 2.5rem;
  border: 2px dashed var(--accent-cyan);
  border-radius: var(--radius-lg);
  text-align: center;
  color: var(--accent-cyan);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
  font-weight: 600;
  box-shadow: var(--shadow-glow-cyan);
}

/* HUD Superior */
.stage-hud-top {
  position: absolute;
  top: 1rem;
  left: 1rem;
  right: 1rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  pointer-events: none;
  z-index: 10;
  transition: opacity 0.4s cubic-bezier(0.4, 0, 0.2, 1), transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Estado de pantalla completa nativo */
.visualizer-stage-wrapper:fullscreen,
.visualizer-stage-wrapper:-webkit-full-screen {
  width: 100vw !important;
  height: 100vh !important;
  max-height: 100vh !important;
  border-radius: 0 !important;
  border: none !important;
  margin: 0 !important;
  padding: 0 !important;
}

/* Ocultación suave al estar inactivo en pantalla completa */
.visualizer-stage-wrapper.user-idle .stage-hud-top {
  opacity: 0 !important;
  pointer-events: none !important;
  transform: translateY(-16px);
}

.visualizer-stage-wrapper.user-idle .stage-hud-meters {
  opacity: 0 !important;
  pointer-events: none !important;
  transform: translateY(16px);
}

.visualizer-stage-wrapper.user-idle .stage-mode-selector {
  opacity: 0 !important;
  pointer-events: none !important;
  transform: translateY(20px);
}

.visualizer-stage-wrapper.user-idle,
.visualizer-stage-wrapper.user-idle * {
  cursor: none !important;
}

.stage-hud-top > * {
  pointer-events: auto;
}

.hud-left {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.status-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.35rem 0.85rem;
  border-radius: var(--radius-pill);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  transition: all var(--transition-fast);
}

.status-badge.idle {
  background: rgba(30, 41, 59, 0.75);
  color: #94a3b8;
}

.status-badge.live {
  background: rgba(0, 240, 255, 0.2);
  color: var(--accent-cyan);
  border-color: rgba(0, 240, 255, 0.4);
  box-shadow: var(--shadow-glow-cyan);
}

.status-badge.playing {
  background: rgba(255, 0, 127, 0.2);
  color: var(--accent-pink);
  border-color: rgba(255, 0, 127, 0.4);
  box-shadow: var(--shadow-glow-pink);
}

.status-badge.synth {
  background: rgba(121, 40, 202, 0.25);
  color: #d8b4fe;
  border-color: rgba(121, 40, 202, 0.5);
  box-shadow: 0 0 20px rgba(121, 40, 202, 0.3);
}

.hud-beat-box {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.35rem 0.75rem;
  border-radius: var(--radius-pill);
  background: rgba(15, 23, 42, 0.75);
  backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.hud-beat-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #64748b;
  transition: transform 0.08s ease-out, background-color 0.08s ease-out;
}

.hud-beat-dot.pulse {
  background: var(--accent-cyan);
  box-shadow: 0 0 12px var(--accent-cyan);
  transform: scale(1.6);
}

.hud-beat-label {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
}

.hud-right {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.hud-fps-pill {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--accent-cyan);
  background: rgba(15, 23, 42, 0.75);
  backdrop-filter: blur(12px);
  padding: 0.35rem 0.75rem;
  border-radius: var(--radius-pill);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.btn-hud-icon {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-pill);
  background: rgba(15, 23, 42, 0.75);
  backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: var(--text-main);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.btn-hud-icon:hover {
  background: rgba(255, 255, 255, 0.15);
  color: var(--accent-cyan);
  transform: scale(1.06);
}

.btn-hud-icon.active {
  background: var(--accent-cyan);
  color: #05030a;
}

/* Vúmetro / Mini-Ecualizador HUD */
.stage-hud-meters {
  position: absolute;
  bottom: 5.2rem;
  left: 1rem;
  display: flex;
  align-items: flex-end;
  gap: 0.4rem;
  background: rgba(10, 10, 18, 0.65);
  backdrop-filter: blur(12px);
  padding: 0.5rem 0.65rem;
  border-radius: var(--radius-md);
  border: 1px solid rgba(255, 255, 255, 0.06);
  z-index: 10;
  pointer-events: none;
  transition: opacity 0.4s cubic-bezier(0.4, 0, 0.2, 1), transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.meter-col {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.3rem;
}

.meter-bar-track {
  width: 8px;
  height: 48px;
  background: rgba(255, 255, 255, 0.08);
  border-radius: 4px;
  overflow: hidden;
  position: relative;
  display: flex;
  align-items: flex-end;
}

.meter-bar-fill {
  width: 100%;
  height: 0%;
  border-radius: 4px;
  transition: height 0.06s ease-out;
}

.fill-sub { background: #ff007f; box-shadow: 0 0 8px #ff007f; }
.fill-bass { background: #ff4500; box-shadow: 0 0 8px #ff4500; }
.fill-mid { background: #ffaa00; box-shadow: 0 0 8px #ffaa00; }
.fill-treble { background: #00ff66; box-shadow: 0 0 8px #00ff66; }
.fill-high { background: #00f0ff; box-shadow: 0 0 8px #00f0ff; }

.meter-label {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--text-dim);
  text-transform: uppercase;
}

/* Selector de Modos 3D Flotante */
.stage-mode-selector {
  position: absolute;
  bottom: 1rem;
  left: 1rem;
  right: 1rem;
  display: flex;
  justify-content: center;
  z-index: 10;
  pointer-events: none;
  transition: opacity 0.4s cubic-bezier(0.4, 0, 0.2, 1), transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.mode-selector-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  background: rgba(10, 10, 20, 0.8);
  backdrop-filter: blur(16px);
  padding: 0.35rem;
  border-radius: var(--radius-pill);
  border: 1px solid rgba(255, 255, 255, 0.12);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.5);
  pointer-events: auto;
  overflow-x: auto;
  max-width: 100%;
  scrollbar-width: none;
  -ms-overflow-style: none;
}

.mode-selector-pill::-webkit-scrollbar {
  display: none;
}

.btn-mode-select {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.5rem 0.9rem;
  border-radius: var(--radius-pill);
  border: none;
  background: transparent;
  color: var(--text-muted);
  font-family: var(--font-heading);
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.btn-mode-select:hover {
  color: var(--text-main);
  background: rgba(255, 255, 255, 0.08);
}

.btn-mode-select.active {
  background: linear-gradient(135deg, var(--accent-pink), var(--accent-purple));
  color: #ffffff;
  box-shadow: 0 4px 15px rgba(255, 0, 127, 0.35);
}

@media (max-width: 640px) {
  .btn-mode-select span {
    display: none;
  }
  .btn-mode-select {
    padding: 0.55rem;
  }
}

/* ==========================================================================
   Panel de Control & Tarjetas Glassmorphism
   ========================================================================== */
.cards-control-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.25rem;
}

@media (max-width: 1150px) {
  .cards-control-grid {
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  }
}

.control-card {
  background: var(--bg-card);
  border: 1px solid var(--bg-card-border);
  border-radius: var(--radius-md);
  padding: 1.35rem;
  backdrop-filter: blur(14px);
  box-shadow: var(--shadow-card);
  display: flex;
  flex-direction: column;
  gap: 1.15rem;
  transition: border-color var(--transition-fast), transform var(--transition-fast);
}

.control-card:hover {
  border-color: rgba(255, 255, 255, 0.16);
}

.card-header-flex {
  display: flex;
  align-items: flex-start;
  gap: 0.85rem;
}

.card-icon-box {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--bg-card-border);
  color: var(--accent-cyan);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.card-title {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 0.2rem;
}

.card-subtitle {
  font-size: 0.82rem;
  color: var(--text-muted);
  line-height: 1.35;
}

/* Botones de Fuentes de Sonido */
.sources-buttons-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.65rem;
}

.btn-source-action {
  width: 100%;
  min-height: 44px;
  padding: 0.65rem 0.85rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--bg-card-border);
  background: rgba(255, 255, 255, 0.04);
  color: var(--text-main);
  font-family: var(--font-body);
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  transition: all var(--transition-fast);
}

.btn-source-action:hover {
  background: rgba(255, 255, 255, 0.09);
  border-color: rgba(255, 255, 255, 0.2);
}

.btn-source-action.active {
  background: linear-gradient(135deg, rgba(0, 240, 255, 0.15), rgba(121, 40, 202, 0.25));
  border-color: var(--accent-cyan);
  color: var(--accent-cyan);
  box-shadow: 0 0 15px rgba(0, 240, 255, 0.2);
}

.file-playing-banner {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.55rem 0.85rem;
  background: rgba(255, 0, 127, 0.1);
  border: 1px solid rgba(255, 0, 127, 0.3);
  border-radius: var(--radius-sm);
  color: var(--accent-pink);
  font-size: 0.8rem;
  font-weight: 600;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.source-footer-actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
}

.btn-text-action {
  background: none;
  border: none;
  color: var(--accent-cyan);
  font-size: 0.82rem;
  font-weight: 600;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.3rem 0;
  transition: color var(--transition-fast);
}

.btn-text-action:hover {
  color: #ffffff;
  text-decoration: underline;
}

.btn-danger-outline {
  background: transparent;
  border: 1px solid rgba(239, 68, 68, 0.4);
  color: #f87171;
  padding: 0.4rem 0.8rem;
  border-radius: var(--radius-sm);
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  transition: all var(--transition-fast);
}

.btn-danger-outline:hover {
  background: rgba(239, 68, 68, 0.15);
  border-color: #ef4444;
}

/* Paletas Cromáticas */
.colors-palette-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
  gap: 0.65rem;
}

.btn-color-select {
  width: 100%;
  min-height: 42px;
  padding: 0.55rem 0.75rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--bg-card-border);
  background: rgba(255, 255, 255, 0.03);
  color: var(--text-main);
  font-size: 0.82rem;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 0.6rem;
  transition: all var(--transition-fast);
}

.btn-color-select:hover {
  background: rgba(255, 255, 255, 0.08);
}

.btn-color-select.active {
  border-color: var(--accent-cyan);
  background: rgba(255, 255, 255, 0.1);
  box-shadow: 0 0 12px rgba(0, 240, 255, 0.18);
}

.color-preview-dots {
  display: flex;
  align-items: center;
  gap: 3px;
}

.color-preview-dots span {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  display: inline-block;
}

/* Sliders y Controles de Afinación */
.sliders-control-list {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.slider-row {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.slider-info {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.82rem;
}

.slider-info label {
  color: var(--text-muted);
  font-weight: 500;
}

.slider-val-badge {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--accent-cyan);
}

input[type="range"] {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 6px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 4px;
  outline: none;
  cursor: pointer;
}

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

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

.toggles-control-row {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  padding-top: 0.35rem;
  border-top: 1px solid var(--bg-card-border);
}

.custom-toggle-label {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.84rem;
  color: var(--text-main);
  cursor: pointer;
  user-select: none;
}

.custom-toggle-label input[type="checkbox"] {
  display: none;
}

.toggle-switch {
  width: 36px;
  height: 20px;
  background: rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-pill);
  position: relative;
  transition: background-color var(--transition-fast);
  flex-shrink: 0;
}

.toggle-switch::after {
  content: '';
  position: absolute;
  top: 2px;
  left: 2px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: #ffffff;
  transition: transform var(--transition-fast);
}

.custom-toggle-label input[type="checkbox"]:checked + .toggle-switch {
  background: var(--accent-cyan);
  box-shadow: 0 0 10px rgba(0, 240, 255, 0.4);
}

.custom-toggle-label input[type="checkbox"]:checked + .toggle-switch::after {
  transform: translateX(16px);
  background: #05030a;
}

/* ==========================================================================
   Secciones Informativas, Guías & FAQ
   ========================================================================== */
.section-heading {
  font-family: var(--font-heading);
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 1.15rem;
}

.info-guide-section {
  margin-top: 1rem;
}

.guide-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.25rem;
}

.guide-card {
  background: var(--bg-card);
  border: 1px solid var(--bg-card-border);
  border-radius: var(--radius-md);
  padding: 1.4rem;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  position: relative;
}

.guide-step-num {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent-cyan), var(--accent-purple));
  color: #ffffff;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 0.2rem;
}

.guide-card h3 {
  font-family: var(--font-heading);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-main);
}

.guide-card p {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.5;
}

/* FAQ */
.faq-section {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--bg-card-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: border-color var(--transition-fast);
}

.faq-item[open] {
  border-color: rgba(255, 255, 255, 0.18);
}

.faq-question {
  padding: 1rem 1.25rem;
  font-family: var(--font-heading);
  font-size: 0.98rem;
  font-weight: 600;
  color: var(--text-main);
  cursor: pointer;
  list-style: none;
  position: relative;
}

.faq-question::-webkit-details-marker {
  display: none;
}

.faq-question::after {
  content: '+';
  position: absolute;
  right: 1.25rem;
  top: 50%;
  transform: translateY(-50%);
  font-size: 1.3rem;
  color: var(--accent-cyan);
  transition: transform var(--transition-fast);
}

.faq-item[open] .faq-question::after {
  content: '−';
  transform: translateY(-50%);
}

.faq-answer {
  padding: 0 1.25rem 1.25rem;
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.55;
}

/* ==========================================================================
   Modales Nativos (Sin Alerts)
   ========================================================================== */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.75);
  backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-fast);
  z-index: 100;
}

.modal-backdrop.open {
  opacity: 1;
  pointer-events: auto;
}

.modal-card {
  background: #11111e;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-lg);
  width: 100%;
  max-width: 500px;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.9), 0 0 30px rgba(0, 240, 255, 0.1);
  overflow: hidden;
  transform: translateY(12px) scale(0.97);
  transition: transform var(--transition-fast);
}

.modal-backdrop.open .modal-card {
  transform: translateY(0) scale(1);
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.25rem 1.5rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.modal-title {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-main);
}

.btn-modal-close {
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 1.5rem;
  line-height: 1;
  cursor: pointer;
  transition: color var(--transition-fast);
}

.btn-modal-close:hover {
  color: #ffffff;
}

.modal-body {
  padding: 1.5rem;
  font-size: 0.92rem;
  color: var(--text-muted);
  line-height: 1.55;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.modal-guide-steps {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.step-row {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  font-size: 0.88rem;
}

.step-badge {
  background: rgba(0, 240, 255, 0.15);
  color: var(--accent-cyan);
  border: 1px solid rgba(0, 240, 255, 0.3);
  padding: 0.2rem 0.5rem;
  border-radius: var(--radius-pill);
  font-size: 0.75rem;
  font-weight: 700;
  white-space: nowrap;
  flex-shrink: 0;
}

.modal-note {
  font-size: 0.84rem;
  color: var(--text-dim);
  border-left: 2px solid var(--accent-cyan);
  padding-left: 0.75rem;
  margin-top: 0.25rem;
}

.modal-footer {
  padding: 1rem 1.5rem;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  display: flex;
  justify-content: flex-end;
}

.btn-modal-primary {
  min-height: 40px;
  padding: 0.55rem 1.25rem;
  border-radius: var(--radius-sm);
  border: none;
  background: linear-gradient(135deg, var(--accent-cyan), var(--accent-purple));
  color: #ffffff;
  font-weight: 600;
  font-size: 0.88rem;
  cursor: pointer;
  transition: opacity var(--transition-fast);
}

.btn-modal-primary:hover {
  opacity: 0.9;
}