:root {
  /* Color System baseado no xingucode-site */
  --bg-dark: #080c14;
  --bg-secondary: #0f172a;
  --bg-card: rgba(15, 23, 42, 0.65);
  --bg-glass: rgba(30, 41, 59, 0.3);
  --bg-card-border: rgba(255, 255, 255, 0.08);
  --border-glass-hover: rgba(255, 255, 255, 0.18);

  --accent-primary: #7f52ff;
  --accent-hover: #6c38f0;
  --accent-gradient: linear-gradient(135deg, #7f52ff 0%, #a855f7 100%);

  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --input-bg: #0f172a;
  --input-border: #1e293b;
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 18px;
  --shadow-lg: 0 10px 30px -10px rgba(0, 0, 0, 0.6);
}

:root[data-theme="light"] {
  /* Light Theme inspirado no xingucode-site */
  --bg-dark: #f1f5f9;
  --bg-secondary: #ffffff;
  --bg-card: rgba(255, 255, 255, 0.88);
  --bg-glass: rgba(255, 255, 255, 0.6);
  --bg-card-border: rgba(15, 23, 42, 0.08);
  --border-glass-hover: rgba(15, 23, 42, 0.15);

  --text-main: #0f172a;
  --text-muted: #475569;
  --input-bg: #ffffff;
  --input-border: #cbd5e1;
  --shadow-lg: 0 10px 30px -10px rgba(15, 23, 42, 0.08);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: 'Outfit', 'Inter', sans-serif;
  background-color: var(--bg-dark);
  color: var(--text-main);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background-image: 
    radial-gradient(circle at 15% 20%, rgba(99, 102, 241, 0.15) 0%, transparent 40%),
    radial-gradient(circle at 85% 80%, rgba(168, 85, 247, 0.15) 0%, transparent 40%);
  background-attachment: fixed;
}

/* Navbar Header */
header {
  background: rgba(15, 23, 42, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--bg-card-border);
  padding: 1rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  position: sticky;
  top: 0;
  z-index: 100;
}

.logo-container {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.logo-icon {
  width: 38px;
  height: 38px;
  background: var(--accent-gradient);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 0 15px rgba(99, 102, 241, 0.5);
}

.logo-icon svg {
  width: 22px;
  height: 22px;
  fill: #ffffff;
}

.logo-text h1 {
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  background: linear-gradient(to right, #ffffff, #cbd5e1);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.logo-text span {
  font-size: 0.75rem;
  color: #a855f7;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 0.85rem;
}

.export-format-group {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  background: var(--input-bg);
  border: 1px solid var(--input-border);
  padding: 0.35rem 0.75rem;
  border-radius: var(--radius-sm);
  font-size: 0.8rem;
  color: var(--text-muted);
}

.header-format-label {
  font-size: 0.75rem;
  color: var(--text-muted);
  font-weight: 500;
}

.header-select {
  background: transparent;
  border: none;
  color: var(--text-main);
  font-weight: 600;
  font-size: 0.85rem;
  outline: none;
  cursor: pointer;
  padding: 0;
  width: auto;
}

.btn-header-export {
  width: auto;
  padding: 0.55rem 1.35rem;
  font-size: 0.85rem;
  border-radius: var(--radius-sm);
  box-shadow: 0 4px 15px rgba(99, 102, 241, 0.4);
}

/* Main Container Layout (3-Column Workspace Studio) */
.app-layout {
  display: grid;
  grid-template-columns: 360px 1fr 380px;
  gap: 1.5rem;
  padding: 1.5rem;
  flex: 1;
  max-width: 1920px;
  margin: 0 auto;
  width: 100%;
}

@media (max-width: 1440px) {
  .app-layout {
    grid-template-columns: 320px 1fr 340px;
    gap: 1rem;
    padding: 1rem;
  }
}

@media (max-width: 1100px) {
  .app-layout {
    grid-template-columns: 1fr;
  }
}

/* Painel Lateral / Sidebar */
.sidebar {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  max-height: calc(100vh - 110px);
  overflow-y: auto;
  padding-right: 0.5rem;
}

.sidebar .card {
  padding: 1rem;
}

.sidebar .card-title {
  font-size: 0.9rem;
  margin-bottom: 0.75rem;
  padding-bottom: 0.5rem;
}

.sidebar .form-group {
  margin-bottom: 0.65rem;
  gap: 0.35rem;
}

.sidebar .form-group:last-child {
  margin-bottom: 0;
}

/* Effect Control Cards (Contorno & Sombra) */
.effect-control-card {
  background: rgba(15, 23, 42, 0.4);
  border: 1px solid var(--input-border);
  border-radius: var(--radius-sm);
  padding: 0.55rem 0.75rem;
}

.effect-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.45rem;
}

.effect-label {
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--text-muted);
}

.effect-body {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  transition: opacity 0.2s ease;
}

/* Custom Scrollbar */
.sidebar::-webkit-scrollbar {
  width: 6px;
}

.sidebar::-webkit-scrollbar-track {
  background: rgba(15, 23, 42, 0.5);
}

.sidebar::-webkit-scrollbar-thumb {
  background: var(--input-border);
  border-radius: 4px;
}

.card {
  background: var(--bg-card);
  border: 1px solid var(--bg-card-border);
  backdrop-filter: blur(16px);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  box-shadow: var(--shadow-lg);
  transition: border-color 0.2s ease;
}

.card:hover {
  border-color: rgba(99, 102, 241, 0.3);
}

.card-export-sticky {
  position: sticky;
  bottom: 0;
  z-index: 20;
  background: rgba(15, 23, 42, 0.95);
  backdrop-filter: blur(20px);
  border: 1px solid rgba(99, 102, 241, 0.5);
  box-shadow: 0 -10px 25px rgba(0, 0, 0, 0.6), 0 0 15px rgba(99, 102, 241, 0.25);
  margin-top: auto;
}

.card-title {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  border-bottom: 1px solid var(--bg-card-border);
  padding-bottom: 0.6rem;
}

.card-title svg {
  width: 18px;
  height: 18px;
  color: var(--accent-primary);
}

/* Form Fields Styling */
.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  margin-bottom: 0.9rem;
}

.form-group:last-child {
  margin-bottom: 0;
}

label {
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--text-muted);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.label-val {
  color: #818cf8;
  font-weight: 600;
}

input[type="text"],
input[type="number"],
select,
textarea {
  width: 100%;
  background: var(--input-bg);
  border: 1px solid var(--input-border);
  color: var(--text-main);
  padding: 0.6rem 0.8rem;
  border-radius: var(--radius-sm);
  font-family: inherit;
  font-size: 0.85rem;
  outline: none;
  transition: all 0.2s ease;
}

input[type="text"]:focus,
input[type="number"]:focus,
select:focus,
textarea:focus {
  border-color: var(--accent-primary);
  box-shadow: 0 0 0 2px rgba(99, 102, 241, 0.25);
}

textarea {
  resize: vertical;
  min-height: 120px;
  line-height: 1.5;
}

/* Input Range Sliders */
.slider-row {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

input[type="range"] {
  flex: 1;
  -webkit-appearance: none;
  appearance: none;
  height: 6px;
  border-radius: 3px;
  background: var(--input-border);
  outline: none;
}

input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--accent-primary);
  cursor: pointer;
  box-shadow: 0 0 8px rgba(99, 102, 241, 0.6);
  transition: transform 0.1s ease;
}

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

/* Custom File Upload Button */
.file-upload-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  background: rgba(99, 102, 241, 0.1);
  border: 1.5px dashed rgba(99, 102, 241, 0.4);
  color: #a5b4fc;
  padding: 0.75rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 0.85rem;
  font-weight: 500;
  transition: all 0.2s ease;
  text-align: center;
}

.file-upload-btn:hover {
  background: rgba(99, 102, 241, 0.2);
  border-color: var(--accent-primary);
  color: #ffffff;
}

input[type="file"] {
  display: none;
}

/* Grid Form Controls */
.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
}

.grid-3 {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 0.5rem;
}

/* Alignment Button Group */
.btn-group {
  display: flex;
  background: var(--input-bg);
  border: 1px solid var(--input-border);
  border-radius: var(--radius-sm);
  padding: 3px;
  gap: 2px;
}

.btn-group-option {
  flex: 1;
  background: transparent;
  border: none;
  color: var(--text-muted);
  padding: 0.4rem;
  font-size: 0.8rem;
  border-radius: 4px;
  cursor: pointer;
  transition: all 0.2s ease;
  display: flex;
  align-items: center;
  justify-content: center;
}

.btn-group-option.active {
  background: var(--accent-primary);
  color: #ffffff;
  font-weight: 600;
}

/* Toggle Switches */
.toggle-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.2rem 0;
}

.switch {
  position: relative;
  display: inline-block;
  width: 40px;
  height: 22px;
}

.switch input {
  opacity: 0;
  width: 0;
  height: 0;
}

.slider-toggle {
  position: absolute;
  cursor: pointer;
  top: 0; left: 0; right: 0; bottom: 0;
  background-color: var(--input-border);
  transition: .3s;
  border-radius: 22px;
}

.slider-toggle:before {
  position: absolute;
  content: "";
  height: 16px;
  width: 16px;
  left: 3px;
  bottom: 3px;
  background-color: white;
  transition: .3s;
  border-radius: 50%;
}

input:checked + .slider-toggle {
  background-color: var(--accent-primary);
}

input:checked + .slider-toggle:before {
  transform: translateX(18px);
}

/* Color Picker Wrapper */
.color-input-wrapper {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

input[type="color"] {
  -webkit-appearance: none;
  border: none;
  width: 32px;
  height: 32px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  background: transparent;
}

input[type="color"]::-webkit-color-swatch-wrapper {
  padding: 0;
}

input[type="color"]::-webkit-color-swatch {
  border: 1px solid var(--input-border);
  border-radius: var(--radius-sm);
}

/* Central Preview Area */
.preview-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
  position: relative;
}

.preview-toolbar {
  background: var(--bg-card);
  border: 1px solid var(--bg-card-border);
  backdrop-filter: blur(12px);
  border-radius: var(--radius-md);
  padding: 0.6rem 1.25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  max-width: 900px;
}

.phrase-nav {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.nav-btn {
  background: var(--input-bg);
  border: 1px solid var(--input-border);
  color: var(--text-main);
  width: 32px;
  height: 32px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.2s ease;
}

.nav-btn:hover:not(:disabled) {
  background: var(--accent-primary);
  border-color: var(--accent-primary);
}

.nav-btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.phrase-counter {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-muted);
}

.canvas-info {
  font-size: 0.75rem;
  color: #818cf8;
  background: rgba(99, 102, 241, 0.1);
  padding: 0.25rem 0.6rem;
  border-radius: 4px;
}

/* Canvas Screen Frame */
.canvas-frame {
  width: 100%;
  max-width: 900px;
  max-height: 650px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(15, 23, 42, 0.9);
  border: 1px solid var(--bg-card-border);
  border-radius: var(--radius-md);
  padding: 1rem;
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

#previewCanvas {
  max-width: 100%;
  max-height: 600px;
  object-fit: contain;
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.6);
  border-radius: 4px;
  cursor: grab;
}

#previewCanvas:active {
  cursor: grabbing;
}

.drag-hint {
  position: absolute;
  bottom: 12px;
  background: rgba(15, 23, 42, 0.75);
  backdrop-filter: blur(8px);
  color: var(--text-muted);
  font-size: 0.75rem;
  padding: 0.3rem 0.75rem;
  border-radius: 9999px;
  border: 1px solid var(--bg-card-border);
  pointer-events: none;
}

/* Action Buttons */
.btn-primary {
  background: var(--accent-gradient);
  color: #ffffff;
  border: none;
  padding: 0.85rem 1.5rem;
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: var(--radius-md);
  cursor: pointer;
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  box-shadow: 0 4px 15px rgba(99, 102, 241, 0.4);
  transition: all 0.2s ease;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(99, 102, 241, 0.6);
}

.btn-primary:active {
  transform: translateY(0);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--bg-card-border);
  color: var(--text-muted);
  padding: 0.7rem 1.25rem;
  font-size: 0.88rem;
  font-weight: 600;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all 0.25s ease;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
}

.btn-secondary:hover {
  background: rgba(239, 68, 68, 0.12);
  border-color: rgba(239, 68, 68, 0.35);
  color: #f87171;
  transform: translateY(-1px);
}

.btn-secondary:active {
  transform: translateY(0);
}

/* Progress Modal */
.modal-overlay {
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(15, 23, 42, 0.85);
  backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}

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

.modal-card {
  background: var(--bg-card);
  border: 1px solid var(--bg-card-border);
  border-radius: var(--radius-lg);
  padding: 2rem;
  width: 90%;
  max-width: 450px;
  text-align: center;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.7);
}

.modal-title {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.modal-desc {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 1.5rem;
}

.progress-bar-container {
  width: 100%;
  height: 10px;
  background: var(--input-bg);
  border-radius: 5px;
  overflow: hidden;
  margin-bottom: 1rem;
  border: 1px solid var(--input-border);
}

.progress-bar-fill {
  height: 100%;
  width: 0%;
  background: var(--accent-gradient);
  transition: width 0.2s ease;
}

.progress-status {
  font-size: 0.85rem;
  font-weight: 600;
  color: #818cf8;
}

/* Format Modal Options */
.format-options-grid {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-top: 1rem;
}

.btn-format-option {
  display: flex;
  align-items: center;
  gap: 1rem;
  background: var(--input-bg);
  border: 1px solid var(--input-border);
  padding: 1rem;
  border-radius: var(--radius-md);
  color: var(--text-main);
  cursor: pointer;
  text-align: left;
  transition: all 0.2s ease;
}

.btn-format-option:hover {
  background: rgba(99, 102, 241, 0.15);
  border-color: var(--accent-primary);
  transform: translateY(-2px);
  box-shadow: 0 4px 15px rgba(99, 102, 241, 0.2);
}

.format-icon {
  font-size: 1.5rem;
}

.format-info {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

.format-name {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-main);
}

.format-detail {
  font-size: 0.75rem;
  color: var(--text-muted);
}

/* Preset Canvas Selectors */
.preset-chips {
  display: flex;
  gap: 0.4rem;
  margin-top: 0.4rem;
}

.chip {
  background: var(--input-bg);
  border: 1px solid var(--input-border);
  color: var(--text-muted);
  font-size: 0.75rem;
  padding: 0.3rem 0.6rem;
  border-radius: 4px;
  cursor: pointer;
  transition: all 0.2s ease;
}

.chip.active, .chip:hover {
  border-color: var(--accent-primary);
  color: #ffffff;
  background: rgba(99, 102, 241, 0.2);
}

/* Media Type Switcher & Video UI */
.media-type-selector {
  display: flex;
  gap: 0.5rem;
  background: var(--input-bg);
  padding: 0.25rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--input-border);
  margin-bottom: 1rem;
}

.media-tab {
  flex: 1;
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-size: 0.8rem;
  font-weight: 600;
  padding: 0.45rem 0.5rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all 0.2s ease;
  text-align: center;
}

.media-tab:hover {
  color: var(--text-main);
}

.media-tab.active {
  background: var(--accent-gradient);
  color: #ffffff;
  box-shadow: 0 2px 8px rgba(99, 102, 241, 0.3);
}

.btn-video-upload {
  border-color: rgba(168, 85, 247, 0.4);
  background: rgba(168, 85, 247, 0.08);
}

.btn-video-upload:hover {
  background: rgba(168, 85, 247, 0.18);
  border-color: #c084fc;
}

.video-info-badge {
  margin-top: 0.5rem;
  font-size: 0.75rem;
  color: #c084fc;
  background: rgba(168, 85, 247, 0.1);
  padding: 0.4rem 0.75rem;
  border-radius: var(--radius-sm);
  border: 1px dashed rgba(168, 85, 247, 0.3);
}

/* Grupo Flutuante de Controles de Vídeo no Canvas (Play/Pause + Mute) */
.canvas-video-controls-group {
  position: absolute;
  top: 16px;
  right: 16px;
  display: flex;
  gap: 0.5rem;
  z-index: 25;
}

.canvas-video-btn {
  background: rgba(0, 0, 0, 0.45);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.25);
  color: #ffffff;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.2s ease;
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.6), inset 0 1px 1px rgba(255, 255, 255, 0.2);
}

.canvas-video-btn:hover {
  background: rgba(0, 0, 0, 0.75);
  border-color: rgba(255, 255, 255, 0.6);
  transform: scale(1.08);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.8), inset 0 1px 1px rgba(255, 255, 255, 0.4);
}

.canvas-video-btn:active {
  transform: scale(0.94);
}

/* Effect Control Cards (Contorno & Sombra) */
.effect-control-card {
  background: var(--input-bg);
  border: 1px solid var(--input-border);
  border-radius: var(--radius-md);
  padding: 0.75rem;
  margin-top: 0.6rem;
  transition: all 0.25s ease;
}

.effect-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.4rem;
}

.effect-label {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-main);
}

.effect-body {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding-top: 0.2rem;
}

.slider-row {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

/* Header Actions & Botão de Alternar Tema (Header) */
.header-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.theme-toggle-btn {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid var(--bg-card-border);
  color: var(--text-main);
  width: 40px;
  height: 40px;
  min-width: 40px;
  min-height: 40px;
  aspect-ratio: 1 / 1;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  padding: 0;
  cursor: pointer;
  transition: all 0.25s ease;
}

.theme-toggle-btn:hover {
  background: rgba(127, 82, 255, 0.2);
  border-color: var(--accent-primary);
  transform: scale(1.08);
}

/* ==========================================================================
   SUPORTE AO TEMA CLARO (LIGHT THEME ESTILO XINGUCODE-SITE)
   ========================================================================== */
:root[data-theme="light"] body {
  background-color: var(--bg-dark);
  color: var(--text-main);
  background-image: 
    radial-gradient(circle at 15% 20%, rgba(127, 82, 255, 0.07) 0%, transparent 45%),
    radial-gradient(circle at 85% 80%, rgba(168, 85, 247, 0.07) 0%, transparent 45%);
}

:root[data-theme="light"] header {
  background: rgba(255, 255, 255, 0.85);
  border-bottom-color: var(--bg-card-border);
}

:root[data-theme="light"] .logo-text h1 {
  background: linear-gradient(135deg, #4f46e5 0%, #06b6d4 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

:root[data-theme="light"] .theme-toggle-btn {
  background: #ffffff;
  border-color: #cbd5e1;
  color: #0f172a;
  box-shadow: 0 2px 8px rgba(15, 23, 42, 0.06);
}

:root[data-theme="light"] .theme-toggle-btn:hover {
  background: #f1f5f9;
  color: #7f52ff;
  border-color: #7f52ff;
}

:root[data-theme="light"] .card {
  box-shadow: 0 10px 30px -10px rgba(15, 23, 42, 0.06);
}

:root[data-theme="light"] .preview-container {
  background: rgba(255, 255, 255, 0.75);
  border-color: var(--bg-card-border);
  box-shadow: 0 10px 30px -10px rgba(15, 23, 42, 0.05);
}

:root[data-theme="light"] .canvas-frame {
  background: #e2e8f0;
  border-color: #cbd5e1;
  box-shadow: 0 15px 35px rgba(15, 23, 42, 0.08);
}

:root[data-theme="light"] .preview-toolbar {
  background: rgba(255, 255, 255, 0.9);
  border-color: var(--bg-card-border);
}

:root[data-theme="light"] .phrase-nav .nav-btn {
  background: #ffffff;
  border-color: #cbd5e1;
  color: #0f172a;
}

:root[data-theme="light"] .phrase-nav .nav-btn:hover {
  background: #f1f5f9;
  border-color: #94a3b8;
}

:root[data-theme="light"] .chip {
  background: #ffffff;
  color: #334155;
  border-color: #cbd5e1;
}

:root[data-theme="light"] .chip:hover {
  background: #f1f5f9;
  color: #0f172a;
}

:root[data-theme="light"] .chip.active {
  background: var(--accent-gradient);
  color: #ffffff;
  border-color: transparent;
}

:root[data-theme="light"] .media-tab {
  color: #64748b;
}

:root[data-theme="light"] .media-tab.active {
  background: #ffffff;
  color: #7f52ff;
  box-shadow: 0 2px 8px rgba(15, 23, 42, 0.08);
}

:root[data-theme="light"] .media-tabs {
  background: #f1f5f9;
}

:root[data-theme="light"] .file-upload-btn {
  background: #ffffff;
  border-color: #cbd5e1;
  color: #334155;
}

:root[data-theme="light"] .file-upload-btn:hover {
  background: #f1f5f9;
  color: #0f172a;
  border-color: #7f52ff;
}

:root[data-theme="light"] textarea,
:root[data-theme="light"] select,
:root[data-theme="light"] input[type="text"],
:root[data-theme="light"] input[type="number"] {
  background-color: #ffffff;
  border-color: #cbd5e1;
  color: #0f172a;
}

:root[data-theme="light"] textarea:focus,
:root[data-theme="light"] select:focus,
:root[data-theme="light"] input[type="text"]:focus,
:root[data-theme="light"] input[type="number"]:focus {
  border-color: #7f52ff;
}

:root[data-theme="light"] .effect-control-card {
  background: #f8fafc;
  border-color: #cbd5e1;
  box-shadow: 0 2px 8px rgba(15, 23, 42, 0.04);
}

:root[data-theme="light"] .btn-group {
  background: #f1f5f9;
  border-color: #cbd5e1;
}

:root[data-theme="light"] .btn-group-option {
  color: #475569;
}

:root[data-theme="light"] .btn-group-option.active {
  background: var(--accent-primary);
  color: #ffffff;
}

:root[data-theme="light"] .modal-overlay {
  background: rgba(15, 23, 42, 0.4);
  backdrop-filter: blur(8px);
}

:root[data-theme="light"] .modal-card {
  background: #ffffff;
  border-color: #e2e8f0;
  color: #0f172a;
  box-shadow: 0 25px 50px -12px rgba(15, 23, 42, 0.2);
}

:root[data-theme="light"] .modal-title {
  color: #0f172a;
}

:root[data-theme="light"] .modal-desc {
  color: #64748b;
}

:root[data-theme="light"] .btn-format-option {
  background: #f8fafc;
  border-color: #cbd5e1;
  color: #0f172a;
  box-shadow: 0 2px 6px rgba(15, 23, 42, 0.03);
}

:root[data-theme="light"] .btn-format-option:hover {
  background: #ffffff;
  border-color: #7f52ff;
  box-shadow: 0 6px 20px rgba(127, 82, 255, 0.15);
  transform: translateY(-2px);
}

:root[data-theme="light"] .format-name {
  color: #0f172a;
}

:root[data-theme="light"] .format-detail {
  color: #64748b;
}

:root[data-theme="light"] .btn-secondary {
  background: #f1f5f9;
  border-color: #cbd5e1;
  color: #475569;
}

:root[data-theme="light"] .btn-secondary:hover {
  background: #fee2e2;
  border-color: #fca5a5;
  color: #dc2626;
  box-shadow: 0 4px 12px rgba(220, 38, 38, 0.1);
}

:root[data-theme="light"] .progress-bar-container {
  background: #e2e8f0;
  border-color: #cbd5e1;
}

:root[data-theme="light"] .progress-status {
  color: #7f52ff;
}

:root[data-theme="light"] .drag-hint {
  background: rgba(255, 255, 255, 0.9);
  color: #334155;
  border-color: #cbd5e1;
}

:root[data-theme="light"] .video-info-badge {
  background: rgba(127, 82, 255, 0.1);
  border-color: rgba(127, 82, 255, 0.3);
  color: #7f52ff;
}