:root {
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-serif: 'Cinzel', 'Playfair Display', Georgia, serif;
  --font-reading: 'EB Garamond', 'Crimson Pro', Georgia, serif;
  --font-mono: 'JetBrains Mono', monospace;

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
  --radius-xl: 18px;

  /* Default Variables fallback to Titanium Matte Modern */
  --bg-primary: #0d1117;
  --bg-secondary: #161b22;
  --bg-tertiary: #1c222d;
  --bg-card: rgba(22, 27, 36, 0.75);
  --bg-card-hover: rgba(30, 38, 52, 0.9);
  
  --border-subtle: rgba(148, 163, 184, 0.16);
  --border-active: #38bdf8;
  --border-focus: #0ea5e9;

  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --text-dim: #64748b;

  --accent-gold: #f59e0b;
  --accent-gold-glow: rgba(245, 158, 11, 0.22);
  --accent-blue: #38bdf8;
  --accent-indigo: #818cf8;
  --accent-purple: #a855f7;
  --accent-emerald: #34d399;
  --accent-rose: #fb7185;

  --shadow-subtle: 0 4px 16px rgba(0, 0, 0, 0.45);
  --shadow-glow: 0 0 24px rgba(56, 189, 248, 0.2);
  --scrollbar-track: #0d1117;
  --scrollbar-thumb: #2d3748;
  --scrollbar-thumb-hover: #475569;
}

/* 🛡️ TITANIUM MATTE THEME (Chế Độ Titan Nhám Hiện Đại Sang Trọng) */
[data-theme="titan"], body[data-theme="titan"] {
  --bg-primary: #0d1117;
  --bg-secondary: #161b22;
  --bg-tertiary: #1c222d;
  --bg-card: rgba(22, 27, 36, 0.75);
  --bg-card-hover: rgba(30, 38, 52, 0.9);
  
  --border-subtle: rgba(148, 163, 184, 0.16);
  --border-active: #38bdf8;
  --border-focus: #0ea5e9;

  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --text-dim: #64748b;

  --accent-gold: #f59e0b;
  --accent-gold-glow: rgba(245, 158, 11, 0.22);
  --accent-blue: #38bdf8;
  --accent-indigo: #818cf8;
  --accent-purple: #a855f7;
  --accent-emerald: #34d399;
  --accent-rose: #fb7185;

  --shadow-subtle: 0 4px 16px rgba(0, 0, 0, 0.45);
  --shadow-glow: 0 0 24px rgba(56, 189, 248, 0.2);
  --scrollbar-track: #0d1117;
  --scrollbar-thumb: #2d3748;
  --scrollbar-thumb-hover: #475569;
}

/* 📜 RETRO VINTAGE THEME (Bản Thảo Giấy Cổ, Hoàng Gia & Lịch Sử) */
[data-theme="vintage"], body[data-theme="vintage"] {
  --bg-primary: #f5efe3;
  --bg-secondary: #ece1cc;
  --bg-tertiary: #e2d3b9;
  --bg-card: #fbf7ee;
  --bg-card-hover: #ffffff;
  
  --border-subtle: #d7c5a6;
  --border-active: #b45309;
  --border-focus: #c27803;

  --text-main: #241c15;
  --text-muted: #5e4c3a;
  --text-dim: #8c7760;

  --accent-gold: #b45309;
  --accent-gold-glow: rgba(180, 83, 9, 0.22);
  --accent-blue: #1d5573;
  --accent-indigo: #583972;
  --accent-purple: #723467;
  --accent-emerald: #245836;
  --accent-rose: #991b1b;

  --shadow-subtle: 0 4px 14px rgba(78, 51, 22, 0.09);
  --shadow-glow: 0 0 20px rgba(180, 83, 9, 0.18);
  --scrollbar-track: #f1e7d4;
  --scrollbar-thumb: #c8b596;
  --scrollbar-thumb-hover: #a89370;
}

/* 🕯️ WARM SEPIA THEME (Gỗ Óc Chó & Ánh Nến Thư Viện Cổ) */
[data-theme="sepia"], body[data-theme="sepia"] {
  --bg-primary: #191411;
  --bg-secondary: #231c17;
  --bg-tertiary: #2e241e;
  --bg-card: rgba(43, 34, 27, 0.92);
  --bg-card-hover: rgba(56, 44, 35, 0.98);
  
  --border-subtle: #453528;
  --border-active: #d97706;
  --border-focus: #f59e0b;

  --text-main: #f5ece2;
  --text-muted: #c2ada0;
  --text-dim: #8f7b6d;

  --accent-gold: #f59e0b;
  --accent-gold-glow: rgba(245, 158, 11, 0.28);
  --accent-blue: #38bdf8;
  --accent-indigo: #a78bfa;
  --accent-purple: #c084fc;
  --accent-emerald: #34d399;
  --accent-rose: #fb7185;

  --shadow-subtle: 0 4px 16px rgba(0, 0, 0, 0.55);
  --shadow-glow: 0 0 22px rgba(245, 158, 11, 0.2);
  --scrollbar-track: #231c17;
  --scrollbar-thumb: #524032;
  --scrollbar-thumb-hover: #6d5543;
}

/* 🌑 CYBER DARK THEME (Chế độ Tối Hiện Đại) */
[data-theme="dark"], body[data-theme="dark"] {
  --bg-primary: #0a0d14;
  --bg-secondary: #111622;
  --bg-tertiary: #182030;
  --bg-card: rgba(22, 29, 44, 0.7);
  --bg-card-hover: rgba(28, 38, 58, 0.9);
  
  --border-subtle: #232c3f;
  --border-active: #3b82f6;
  --border-focus: #60a5fa;

  --text-main: #f1f5f9;
  --text-muted: #94a3b8;
  --text-dim: #64748b;

  --accent-gold: #f59e0b;
  --accent-gold-glow: rgba(245, 158, 11, 0.25);
  --accent-blue: #3b82f6;
  --accent-indigo: #6366f1;
  --accent-purple: #8b5cf6;
  --accent-emerald: #10b981;
  --accent-rose: #f43f5e;

  --shadow-subtle: 0 4px 12px rgba(0, 0, 0, 0.35);
  --shadow-glow: 0 0 20px rgba(99, 102, 241, 0.25);
  --scrollbar-track: transparent;
  --scrollbar-thumb: #334155;
  --scrollbar-thumb-hover: #475569;
}

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

body {
  font-family: var(--font-sans);
  background-color: var(--bg-primary);
  background-image: 
    radial-gradient(ellipse 120% 60% at 50% -10%, rgba(56, 189, 248, 0.08), transparent 70%),
    radial-gradient(ellipse 80% 40% at 90% 90%, rgba(99, 102, 241, 0.05), transparent),
    url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='titanNoise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.8' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23titanNoise)' opacity='0.038'/%3E%3C/svg%3E");
  background-attachment: fixed;
  color: var(--text-main);
  line-height: 1.5;
  height: 100vh;
  overflow: hidden;
  position: relative;
  -webkit-font-smoothing: antialiased;
}

/* 🖼️ WATERMARK BACKGROUND IMAGE LAYER (Mặc định ẩn để không làm nhòe các giao diện) */
.custom-bg-layer {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  overflow: hidden;
  display: none;
}

.custom-bg-img {
  position: absolute;
  inset: -15px;
  background-image: url('custom_bg.jpg');
  background-repeat: no-repeat;
  background-position: center 25%;
  background-size: cover;
  opacity: var(--custom-bg-opacity, 0.12);
  filter: blur(1.2px) saturate(0.9);
  transition: opacity 0.35s ease, filter 0.35s ease;
}

.custom-bg-overlay {
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 50% 30%, transparent 15%, rgba(13, 17, 23, 0.6) 80%);
  pointer-events: none;
}

/* 🖼️ WALLPAPER POPOVER STYLES */
.wallpaper-popover {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  width: 250px;
  background: var(--bg-card);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 12px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
  z-index: 10000;
  animation: fadeIn 0.2s ease;
}

.wallpaper-popover.hidden {
  display: none !important;
}

.wallpaper-popover-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--border-subtle);
  padding-bottom: 8px;
  margin-bottom: 10px;
  font-size: 13px;
}

.wallpaper-presets-row {
  display: flex;
  gap: 6px;
  margin-top: 8px;
}

.wallpaper-presets-row .btn-chip {
  flex: 1;
  text-align: center;
  font-size: 10.5px;
  padding: 3px 6px;
}

.switch-mini {
  position: relative;
  display: inline-block;
  width: 32px;
  height: 18px;
}

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

.slider-mini {
  position: absolute;
  cursor: pointer;
  inset: 0;
  background-color: #334155;
  transition: .3s;
  border-radius: 18px;
}

.slider-mini:before {
  position: absolute;
  content: "";
  height: 14px;
  width: 14px;
  left: 2px;
  bottom: 2px;
  background-color: white;
  transition: .3s;
  border-radius: 50%;
}

.switch-mini input:checked + .slider-mini {
  background-color: #0284c7;
}

.switch-mini input:checked + .slider-mini:before {
  transform: translateX(14px);
}

/* APP LAYOUT */
.app-layout {
  display: flex;
  flex-direction: column;
  height: 100vh;
  width: 100vw;
  position: relative;
  z-index: 1;
}

/* TOP HEADER */
.app-header {
  height: 56px;
  min-height: 56px;
  background: #0d1117 !important;
  border-bottom: 1px solid #30363d;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 16px;
  gap: 12px;
  z-index: 1000;
  position: relative;
  flex-shrink: 0;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.4);
}

.header-left {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
}

.brand-icon {
  width: 32px;
  height: 32px;
  background: linear-gradient(135deg, #f59e0b, #d97706);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  box-shadow: 0 0 14px var(--accent-gold-glow);
}

.brand-title-wrap {
  display: flex;
  align-items: center;
  gap: 6px;
}

.brand-title {
  font-family: var(--font-sans);
  font-size: 15px;
  font-weight: 800;
  letter-spacing: 0.6px;
  color: #ffffff;
  white-space: nowrap;
}

.badge-studio-ver {
  font-size: 9px;
  font-weight: 700;
  padding: 1px 5px;
  border-radius: 4px;
  background: linear-gradient(135deg, #0ea5e9, #6366f1);
  color: #fff;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}

.brand-subtitle {
  font-size: 10px;
  color: var(--text-dim);
  display: block;
  letter-spacing: 0.2px;
  white-space: nowrap;
}

.brand-logo-img {
  width: 32px;
  height: 32px;
  object-fit: contain;
  border-radius: 6px;
  background: #ffffff;
  padding: 2px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.25);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
  flex-shrink: 0;
}

.brand-logo-img:hover {
  transform: scale(1.06);
  box-shadow: 0 4px 14px rgba(2, 132, 199, 0.3);
}

.empty-logo-img {
  width: 64px;
  height: 64px;
  object-fit: contain;
  margin-bottom: 12px;
  border-radius: 12px;
  background: #ffffff;
  padding: 6px;
  box-shadow: 0 4px 18px rgba(0, 0, 0, 0.15);
}

.header-center {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 1;
  min-width: 0;
}

.header-center .control-group {
  white-space: nowrap;
  flex-shrink: 0;
  gap: 6px;
}

.header-label {
  font-size: 12px;
  font-weight: 500;
  color: var(--text-muted);
}

.header-right {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
  margin-left: auto;
  white-space: nowrap;
}

.btn-header-action {
  white-space: nowrap;
  flex-shrink: 0;
  padding: 5px 10px;
  font-size: 12px;
  height: 32px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.toggle-text.hybrid-text {
  color: #38bdf8;
  font-weight: 600;
}

.toggle-text.enrich-text {
  color: #10b981;
  font-weight: 600;
}

@media (max-width: 1400px) {
  .brand-subtitle {
    display: none;
  }
}

@media (max-width: 1220px) {
  .header-lang-group {
    display: none;
  }
}

.control-group {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--text-muted);
}

.styled-select {
  background: var(--bg-tertiary);
  border: 1px solid var(--border-subtle);
  color: var(--text-main);
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  font-size: 13px;
  font-family: var(--font-sans);
  cursor: pointer;
  transition: all 0.2s ease;
  outline: none;
}

.styled-select:hover, .styled-select:focus {
  border-color: var(--accent-blue);
  background: var(--bg-card-hover);
}

.styled-select.small {
  padding: 5px 8px;
}

.checkbox-label {
  display: flex;
  align-items: center;
  gap: 6px;
  cursor: pointer;
  user-select: none;
  font-size: 12.5px;
  color: var(--text-muted);
}

.checkbox-label input {
  display: none;
}

.checkbox-custom {
  width: 15px;
  height: 15px;
  border: 1.5px solid var(--border-subtle);
  border-radius: 4px;
  display: inline-block;
  position: relative;
  transition: all 0.2s ease;
}

.checkbox-label input:checked + .checkbox-custom {
  background: var(--accent-purple);
  border-color: var(--accent-purple);
}

.checkbox-label input:checked + .checkbox-custom::after {
  content: '✓';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-size: 10px;
  color: white;
}

.btn-ghost {
  display: flex;
  align-items: center;
  gap: 8px;
  background: rgba(30, 41, 59, 0.6);
  border: 1px solid var(--border-subtle);
  color: var(--text-main);
  padding: 6px 14px;
  border-radius: var(--radius-md);
  font-size: 12.5px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
}

.btn-ghost:hover {
  background: rgba(40, 53, 76, 0.9);
  border-color: var(--border-focus);
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #ef4444;
  box-shadow: 0 0 8px rgba(239, 68, 68, 0.6);
}

.status-dot.active {
  background: var(--accent-emerald);
  box-shadow: 0 0 8px rgba(16, 185, 129, 0.7);
}

.key-tag {
  background: var(--bg-tertiary);
  border: 1px solid var(--border-subtle);
  padding: 2px 6px;
  border-radius: 4px;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-dim);
}

/* WORKSPACE CONTAINER (2-COLUMN BALANCED STUDIO) */
.workspace-container {
  display: grid;
  grid-template-columns: 560px 1fr;
  flex: 1;
  height: calc(100vh - 60px);
  overflow: hidden;
}

@media (min-width: 1550px) {
  .workspace-container {
    grid-template-columns: 620px 1fr;
  }
}

@media (max-width: 1200px) {
  .workspace-container {
    grid-template-columns: 480px 1fr;
  }
}

/* 🧠 CHANNEL GEMS (BỘ NÃO KÊNH) */
.channel-gems-bar {
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 12px 14px;
  margin-bottom: 14px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.gems-bar-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.gems-title-group {
  display: flex;
  align-items: center;
  gap: 8px;
}

.gems-icon {
  font-size: 20px;
}

.gems-text-group {
  display: flex;
  flex-direction: column;
}

.gems-title {
  font-family: var(--font-serif);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.5px;
  color: var(--text-main);
}

.gems-subtitle {
  font-size: 11px;
  color: var(--text-muted);
}

.gems-bar-actions {
  display: flex;
  align-items: center;
  gap: 6px;
}

.btn-gem-action {
  background: var(--bg-tertiary);
  border: 1px solid var(--border-subtle);
  color: var(--text-main);
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  font-size: 11.5px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
  white-space: nowrap;
}

.btn-gem-action:hover {
  background: var(--bg-card-hover);
  border-color: var(--accent-gold);
  color: var(--accent-gold);
}

.btn-gem-action.new-gem {
  background: linear-gradient(135deg, rgba(180, 83, 9, 0.15), rgba(217, 119, 6, 0.15));
  border-color: var(--accent-gold);
  color: var(--accent-gold);
}

.btn-gem-action.new-gem:hover {
  background: var(--accent-gold);
  color: #ffffff;
}

.gems-chip-list {
  display: flex;
  align-items: center;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 2px;
}

.gem-chip {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-subtle);
  background: var(--bg-card);
  color: var(--text-muted);
  cursor: pointer;
  font-size: 12.5px;
  font-weight: 500;
  transition: all 0.2s ease;
  white-space: nowrap;
}

.gem-chip:hover {
  border-color: var(--accent-gold);
  color: var(--text-main);
  background: var(--bg-card-hover);
}

.gem-chip.active {
  background: linear-gradient(135deg, rgba(180, 83, 9, 0.18), rgba(245, 158, 11, 0.12));
  border-color: var(--accent-gold);
  color: var(--accent-gold);
  font-weight: 700;
  box-shadow: 0 0 10px var(--accent-gold-glow);
}

.gem-chip-icon {
  font-size: 14px;
}

.gem-chip-words {
  font-size: 10.5px;
  opacity: 0.75;
  font-family: var(--font-mono);
}

.gem-modal-channels-bar {
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 10px 12px;
  margin-bottom: 12px;
}

.gem-modal-chips-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 8px;
}

.gem-editing-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  background: rgba(56, 189, 248, 0.12);
  color: #38bdf8;
  border: 1px solid rgba(56, 189, 248, 0.3);
  margin-bottom: 10px;
}

.gem-editing-badge.new-mode {
  background: rgba(245, 158, 11, 0.14);
  color: #f59e0b;
  border-color: rgba(245, 158, 11, 0.35);
}

.modal-dialog.modal-lg {
  max-width: 680px;
}

.sidebar-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 14px;
  padding: 0 4px;
}

.sidebar-title {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.6px;
}

.btn-action-small {
  background: rgba(59, 130, 246, 0.15);
  color: var(--accent-blue);
  border: 1px solid rgba(59, 130, 246, 0.3);
  padding: 4px 9px;
  border-radius: var(--radius-sm);
  font-size: 11.5px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
}

.btn-action-small:hover {
  background: rgba(59, 130, 246, 0.3);
}

.project-list {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 20px;
  max-height: 40vh;
  overflow-y: auto;
}

.project-item {
  display: flex;
  flex-direction: column;
  gap: 3px;
  padding: 9px 11px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all 0.2s ease;
}

.project-item:hover {
  background: rgba(255, 255, 255, 0.06);
  border-color: var(--border-subtle);
}

.project-item.active {
  background: rgba(59, 130, 246, 0.12);
  border-color: rgba(59, 130, 246, 0.4);
}

.project-item-title {
  font-size: 12.5px;
  font-weight: 500;
  color: var(--text-main);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.project-item-meta {
  display: flex;
  justify-content: space-between;
  font-size: 11px;
  color: var(--text-dim);
}

.empty-state-sidebar {
  font-size: 12px;
  color: var(--text-dim);
  text-align: center;
  padding: 16px 0;
}

.sidebar-section-title {
  font-size: 11.5px;
  font-weight: 600;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin: 12px 4px 8px;
}

.sample-templates-list {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.sample-btn {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 8px 10px;
  text-align: left;
  cursor: pointer;
  transition: all 0.2s ease;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.sample-btn:hover {
  background: rgba(255, 255, 255, 0.05);
  border-color: var(--border-focus);
}

.sample-tag {
  font-size: 10px;
  font-weight: 600;
  padding: 2px 5px;
  border-radius: 3px;
  display: inline-block;
  width: fit-content;
}

.sample-tag.debt {
  background: rgba(245, 158, 11, 0.15);
  color: #fbbf24;
  border: 1px solid rgba(245, 158, 11, 0.3);
}

.sample-tag.fallen {
  background: rgba(139, 92, 246, 0.15);
  color: #c084fc;
  border: 1px solid rgba(139, 92, 246, 0.3);
}

.sample-name {
  font-size: 11.5px;
  color: var(--text-muted);
  line-height: 1.3;
}

/* CENTER PANEL: SCRIPT BUILDER */
.panel-center {
  background: var(--bg-primary);
  border-right: 1px solid var(--border-subtle);
  display: flex;
  flex-direction: column;
  overflow-y: auto;
}

/* MODE SELECTOR */
.mode-selector {
  display: grid;
  grid-template-columns: repeat(2, 1fr) 1fr;
  gap: 6px;
  padding: 12px 14px;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border-subtle);
}

.mode-tab {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 8px 10px;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 3px;
  transition: all 0.2s ease;
  position: relative;
}

.mode-tab:hover {
  background: rgba(255, 255, 255, 0.05);
}

.mode-tab.active {
  background: linear-gradient(145deg, rgba(59, 130, 246, 0.18), rgba(99, 102, 241, 0.12));
  border-color: var(--accent-blue);
  box-shadow: 0 0 10px rgba(59, 130, 246, 0.2);
}

.mode-icon {
  font-size: 14px;
}

.mode-title {
  font-size: 12px;
  font-weight: 600;
  color: var(--text-main);
}

.mode-badge {
  font-size: 9.5px;
  color: var(--text-dim);
}

.mode-tab.active .mode-badge {
  color: #93c5fd;
}

/* FORM CONTAINER */
.form-container {
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: 16px 14px;
  flex: 1;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  align-items: end;
}

.form-col {
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

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

.form-group.flex-1 {
  flex: 1;
}

.input-header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
}

.input-label {
  font-size: 12px;
  font-weight: 600;
  color: var(--text-muted);
}

.hint-text {
  font-size: 11px;
  color: var(--text-dim);
}

.styled-input {
  background: var(--bg-tertiary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  color: var(--text-main);
  padding: 8px 12px;
  font-size: 13px;
  font-family: var(--font-sans);
  outline: none;
  transition: all 0.2s ease;
}

.styled-input:focus {
  border-color: var(--border-focus);
  box-shadow: 0 0 8px rgba(59, 130, 246, 0.25);
}

.styled-textarea {
  background: var(--bg-tertiary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  color: var(--text-main);
  padding: 10px 12px;
  font-size: 12.5px;
  font-family: var(--font-mono);
  line-height: 1.5;
  outline: none;
  resize: vertical;
  min-height: 220px;
  flex: 1;
  transition: all 0.2s ease;
}

.styled-textarea:focus {
  border-color: var(--border-focus);
  box-shadow: 0 0 8px rgba(59, 130, 246, 0.25);
}

.slider-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  white-space: nowrap;
  gap: 8px;
}

.slider-header .input-label {
  white-space: nowrap;
}

.slider-value {
  font-size: 11.5px;
  font-weight: 700;
  color: var(--accent-gold);
  white-space: nowrap;
}

.styled-slider {
  width: 100%;
  accent-color: var(--accent-gold);
  cursor: pointer;
}

.btn-text {
  background: none;
  border: none;
  color: var(--text-dim);
  font-size: 11px;
  cursor: pointer;
  text-decoration: underline;
}

.btn-text:hover {
  color: var(--text-muted);
}

/* ACTION BAR */
.action-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 8px;
  border-top: 1px solid var(--border-subtle);
}

.token-cache-indicator {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 11px;
  color: var(--accent-emerald);
  background: rgba(16, 185, 129, 0.1);
  padding: 4px 8px;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(16, 185, 129, 0.2);
}

.action-buttons {
  display: flex;
  gap: 8px;
}

.btn-primary {
  background: linear-gradient(135deg, #2563eb, #1d4ed8);
  color: white;
  border: 1px solid #3b82f6;
  border-radius: var(--radius-md);
  padding: 8px 18px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 8px;
  box-shadow: 0 2px 10px rgba(37, 99, 235, 0.35);
  transition: all 0.2s ease;
}

.btn-primary:hover {
  background: linear-gradient(135deg, #3b82f6, #2563eb);
  box-shadow: 0 4px 14px rgba(37, 99, 235, 0.5);
  transform: translateY(-1px);
}

.btn-primary:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
}

.btn-danger {
  background: rgba(239, 68, 68, 0.15);
  color: #f87171;
  border: 1px solid rgba(239, 68, 68, 0.4);
  border-radius: var(--radius-md);
  padding: 8px 14px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
}

.btn-danger:hover {
  background: rgba(239, 68, 68, 0.3);
}

/* RIGHT PANEL: OUTPUT STUDIO */
.panel-right {
  background: var(--bg-primary);
  display: flex;
  flex-direction: column;
  height: 100%;
  overflow: hidden;
}

.output-header {
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border-subtle);
  display: flex;
  flex-direction: column;
}

.metrics-bar {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 8px 16px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
}

.metric-item {
  display: flex;
  align-items: center;
  gap: 5px;
  font-size: 12px;
}

.metric-label {
  color: var(--text-dim);
}

.metric-val {
  font-weight: 600;
  color: var(--text-main);
  font-family: var(--font-mono);
}

.metric-val.highlight {
  color: var(--accent-gold);
}

.metric-val.cost {
  color: #38bdf8;
}

.metric-val.savings {
  color: var(--accent-emerald);
  background: rgba(16, 185, 129, 0.12);
  padding: 2px 5px;
  border-radius: 3px;
}

.output-tabs {
  display: flex;
  padding: 0 12px;
  gap: 4px;
}

.out-tab {
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  color: var(--text-dim);
  font-size: 12.5px;
  font-weight: 500;
  padding: 8px 12px;
  cursor: pointer;
  transition: all 0.2s ease;
}

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

.out-tab.active {
  color: var(--accent-blue);
  border-bottom-color: var(--accent-blue);
  font-weight: 600;
}

/* OUTPUT CONTENT */
.output-scroll-container {
  flex: 1;
  overflow-y: auto;
  padding: 24px 30px;
  font-size: 14px;
  line-height: 1.7;
}

.empty-state-output {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 100%;
  padding: 30px 20px;
}

.empty-studio-dashboard {
  background: rgba(13, 17, 23, 0.7);
  border: 1px solid rgba(48, 54, 61, 0.8);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  max-width: 760px;
  width: 100%;
  backdrop-filter: blur(14px);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.45);
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.empty-header-block {
  display: flex;
  flex-direction: column;
  align-items: center;
  margin-bottom: 24px;
}

.empty-title {
  font-family: var(--font-sans);
  font-size: 18px;
  font-weight: 800;
  letter-spacing: 0.6px;
  background: linear-gradient(135deg, #ffffff 0%, #38bdf8 55%, #818cf8 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  margin: 10px 0 6px 0;
}

.empty-desc {
  font-size: 13px;
  color: var(--text-muted);
  max-width: 480px;
  line-height: 1.5;
}

.empty-quick-actions {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  width: 100%;
  margin-bottom: 24px;
}

.empty-action-card {
  background: rgba(22, 27, 34, 0.85);
  border: 1px solid #30363d;
  border-radius: var(--radius-md);
  padding: 14px 12px;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 8px;
  cursor: pointer;
  transition: all 0.2s ease;
}

.empty-action-card:hover {
  background: #21262d;
  border-color: #38bdf8;
  transform: translateY(-2px);
  box-shadow: 0 6px 18px rgba(56, 189, 248, 0.18);
}

.action-card-icon {
  font-size: 22px;
}

.action-card-content {
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.action-card-title {
  font-size: 12.5px;
  font-weight: 600;
  color: #f0f6fc;
}

.action-card-desc {
  font-size: 11px;
  color: #8b949e;
  line-height: 1.35;
}

.empty-engine-bar {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px;
  width: 100%;
  padding-top: 18px;
  border-top: 1px dashed rgba(48, 54, 61, 0.8);
}

.engine-pill {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 11.5px;
  color: #c9d1d9;
  background: rgba(22, 27, 34, 0.9);
  border: 1px solid #30363d;
  padding: 4px 10px;
  border-radius: 20px;
}

.pill-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
}

.pill-dot.active {
  background: #38bdf8;
  box-shadow: 0 0 8px rgba(56, 189, 248, 0.8);
}

.pill-dot.groq {
  background: #fb923c;
  box-shadow: 0 0 8px rgba(251, 146, 60, 0.8);
}

.pill-dot.gemini {
  background: #10b981;
  box-shadow: 0 0 8px rgba(16, 185, 129, 0.8);
}

/* THINKING BLOCK */
.thinking-box {
  background: rgba(99, 102, 241, 0.08);
  border: 1px solid rgba(99, 102, 241, 0.3);
  border-radius: var(--radius-md);
  padding: 12px 16px;
  margin-bottom: 16px;
  font-size: 12px;
}

.thinking-title {
  font-weight: 600;
  color: #a5b4fc;
  margin-bottom: 6px;
}

.thinking-content {
  color: #cbd5e1;
  font-family: var(--font-mono);
  white-space: pre-wrap;
  max-height: 140px;
  overflow-y: auto;
}

/* MARKDOWN STYLING */
.markdown-body {
  color: #e2e8f0;
}

.markdown-body h1, .markdown-body h2, .markdown-body h3 {
  font-family: var(--font-serif);
  color: #ffffff;
  margin-top: 24px;
  margin-bottom: 12px;
  letter-spacing: 0.5px;
}

.markdown-body h1 {
  font-size: 20px;
  border-bottom: 1px solid var(--border-subtle);
  padding-bottom: 8px;
  color: var(--accent-gold);
}

.markdown-body h2 {
  font-size: 17px;
  color: #93c5fd;
}

.markdown-body h3 {
  font-size: 15px;
  color: #cbd5e1;
}

.markdown-body p {
  margin-bottom: 14px;
}

.markdown-body blockquote {
  border-left: 3px solid var(--accent-gold);
  padding-left: 14px;
  margin: 14px 0;
  color: #cbd5e1;
  font-style: italic;
  background: rgba(245, 158, 11, 0.05);
  padding-top: 6px;
  padding-bottom: 6px;
}

.markdown-body code {
  font-family: var(--font-mono);
  background: var(--bg-tertiary);
  color: var(--text-main);
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 12.5px;
  border: 1px solid var(--border-subtle);
}

.markdown-body pre {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 12px;
  overflow-x: auto;
  margin: 14px 0;
  color: var(--text-main);
}

/* FOOTER BAR */
.output-footer {
  height: 52px;
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 16px;
}

.footer-left, .footer-right {
  display: flex;
  gap: 8px;
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-subtle);
  color: var(--text-main);
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  font-size: 12.5px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
  display: flex;
  align-items: center;
  gap: 6px;
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: var(--border-focus);
}

.dropdown {
  position: relative;
}

.dropdown-menu {
  position: absolute;
  bottom: 100%;
  right: 0;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-subtle);
  display: none;
  flex-direction: column;
  min-width: 220px;
  margin-bottom: 6px;
  overflow: hidden;
  z-index: 50;
}

.dropdown-menu.show {
  display: flex;
}

.dropdown-menu button {
  background: none;
  border: none;
  color: var(--text-main);
  padding: 10px 14px;
  text-align: left;
  font-size: 12.5px;
  cursor: pointer;
  transition: background 0.2s ease;
}

.dropdown-menu button:hover {
  background: rgba(59, 130, 246, 0.15);
}

.export-dropdown-menu {
  min-width: 330px !important;
  border: 1px solid rgba(56, 189, 248, 0.4) !important;
  background: rgba(15, 23, 42, 0.98) !important;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.65) !important;
  padding: 4px 0;
}

.export-seo-preview-bar {
  padding: 10px 14px 8px 14px;
  background: rgba(2, 6, 23, 0.7);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.export-seo-label {
  font-size: 11px;
  font-weight: 700;
  color: var(--accent-blue, #38bdf8);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.btn-copy-seo-slug {
  background: rgba(56, 189, 248, 0.15);
  border: 1px solid rgba(56, 189, 248, 0.35);
  color: #7dd3fc;
  font-size: 10.5px;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: 4px;
  cursor: pointer;
  transition: all 0.2s ease;
}

.btn-copy-seo-slug:hover {
  background: rgba(56, 189, 248, 0.35);
  color: #fff;
}

.export-seo-filename {
  font-family: var(--font-mono, monospace);
  font-size: 11px;
  color: #94a3b8;
  word-break: break-all;
  margin-top: 5px;
  line-height: 1.4;
  background: rgba(0, 0, 0, 0.45);
  padding: 5px 8px;
  border-radius: 4px;
  border: 1px dashed rgba(255, 255, 255, 0.12);
  color: #38bdf8;
}

.dropdown-divider {
  height: 1px;
  background: rgba(255, 255, 255, 0.08);
  margin: 4px 0;
}

/* MODAL */
.modal-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease;
}

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

.modal-dialog {
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  width: 90%;
  max-width: 520px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

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

.modal-title {
  font-size: 15px;
  font-weight: 700;
  color: var(--text-main);
}

.btn-close {
  background: none;
  border: none;
  color: var(--text-dim);
  font-size: 22px;
  cursor: pointer;
  line-height: 1;
}

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

.modal-body {
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.modal-info-box {
  background: rgba(59, 130, 246, 0.08);
  border: 1px solid rgba(59, 130, 246, 0.2);
  border-radius: var(--radius-sm);
  padding: 10px 12px;
  font-size: 12px;
  color: #bfdbfe;
  line-height: 1.4;
}

.input-with-button {
  display: flex;
  position: relative;
}

.input-with-button input {
  flex: 1;
  padding-right: 36px;
}

.btn-icon-inside {
  position: absolute;
  right: 6px;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  cursor: pointer;
  font-size: 14px;
  color: var(--text-dim);
}

.key-test-feedback {
  font-size: 12px;
  padding: 6px 10px;
  border-radius: 4px;
  display: none;
}

.key-test-feedback.success {
  display: block;
  background: rgba(16, 185, 129, 0.15);
  color: #34d399;
  border: 1px solid rgba(16, 185, 129, 0.3);
}

.key-test-feedback.error {
  display: block;
  background: rgba(239, 68, 68, 0.15);
  color: #f87171;
  border: 1px solid rgba(239, 68, 68, 0.3);
}

.optimization-info {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 12px;
}

.optimization-info h4 {
  font-size: 12px;
  color: var(--accent-gold);
  margin-bottom: 6px;
}

.optimization-info ul {
  padding-left: 18px;
  font-size: 11.5px;
  color: var(--text-muted);
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.modal-footer {
  display: flex;
  justify-content: flex-end;
  gap: 10px;
  padding: 14px 20px;
  background: rgba(0, 0, 0, 0.2);
  border-top: 1px solid var(--border-subtle);
}

.gateway-presets {
  display: flex;
  gap: 6px;
  margin-bottom: 6px;
}

.btn-chip {
  background: var(--bg-tertiary);
  border: 1px solid var(--border-subtle);
  color: var(--text-muted);
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  font-size: 11.5px;
  cursor: pointer;
  transition: all 0.2s ease;
}

.btn-chip:hover {
  background: var(--bg-tertiary);
  color: var(--text-main);
}

.btn-chip.active {
  background: rgba(59, 130, 246, 0.2);
  border-color: var(--accent-blue);
  color: #93c5fd;
  font-weight: 600;
}

.styled-input.small {
  padding: 5px 8px;
  font-size: 12px;
  margin-left: 6px;
  width: 140px;
}

/* DROPZONE */
.textarea-dropzone {
  position: relative;
  display: flex;
  flex: 1;
}

.drop-overlay {
  position: absolute;
  inset: 0;
  background: rgba(59, 130, 246, 0.85);
  border: 2px dashed #93c5fd;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  font-weight: 600;
  color: white;
  z-index: 10;
  backdrop-filter: blur(2px);
}

.btn-action-small.highlight {
  background: rgba(245, 158, 11, 0.2);
  border-color: rgba(245, 158, 11, 0.4);
  color: #fbbf24;
}

.btn-action-small.highlight:hover {
  background: rgba(245, 158, 11, 0.35);
}

.btn-action-small.highlight-emerald {
  background: rgba(16, 185, 129, 0.15);
  border-color: rgba(16, 185, 129, 0.5);
  color: var(--accent-emerald);
  font-weight: 600;
}

.btn-action-small.highlight-emerald:hover {
  background: rgba(16, 185, 129, 0.3);
  border-color: var(--accent-emerald);
}

.btn-secondary.highlight {
  background: rgba(16, 185, 129, 0.15);
  border-color: rgba(16, 185, 129, 0.4);
  color: #34d399;
}

.btn-secondary.highlight:hover {
  background: rgba(16, 185, 129, 0.25);
  border-color: #34d399;
}

/* SCRIPT PROGRESS BAR */
.script-progress-track {
  width: 100%;
  height: 3px;
  background: rgba(255, 255, 255, 0.05);
  position: relative;
  overflow: hidden;
}

.script-progress-fill {
  height: 100%;
  background: linear-gradient(90deg, #f59e0b, #10b981);
  box-shadow: 0 0 8px rgba(16, 185, 129, 0.6);
  transition: width 0.3s ease;
}

.output-tabs-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 12px;
  background: var(--bg-secondary);
}

.btn-icon-action {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-subtle);
  color: var(--text-dim);
  font-size: 11.5px;
  padding: 4px 8px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all 0.2s ease;
}

.btn-icon-action:hover {
  background: rgba(255, 255, 255, 0.1);
  color: var(--text-main);
  border-color: var(--border-focus);
}

/* JUMP TO PART NAVIGATOR */
.jump-nav-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  background: rgba(15, 23, 42, 0.85);
  border-bottom: 1px solid var(--border-subtle);
  overflow-x: auto;
  font-size: 11.5px;
}

.jump-title {
  color: var(--text-dim);
  font-weight: 600;
  white-space: nowrap;
}

.jump-chips {
  display: flex;
  gap: 5px;
  overflow-x: auto;
}

.jump-chip {
  background: var(--bg-tertiary);
  border: 1px solid var(--border-subtle);
  color: #93c5fd;
  padding: 2px 7px;
  border-radius: 4px;
  cursor: pointer;
  white-space: nowrap;
  font-family: var(--font-mono);
  font-size: 10.5px;
  transition: all 0.2s ease;
}

.jump-chip:hover {
  background: rgba(59, 130, 246, 0.25);
  border-color: var(--accent-blue);
  color: white;
}

/* STORYBOARD CARDS (NOVAL / VIMAX BENCHMARK) */
.storyboard-grid {
  display: flex;
  flex-direction: column;
  gap: 16px;
  padding: 10px 0;
}

.storyboard-card {
  background: rgba(24, 34, 53, 0.65);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.25);
  overflow: hidden;
  transition: all 0.24s ease;
}

.storyboard-card:hover {
  border-color: rgba(59, 130, 246, 0.4);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.35);
  transform: translateY(-2px);
}

.card-header-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: rgba(15, 23, 42, 0.8);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  padding: 8px 14px;
}

.card-part-title {
  font-family: var(--font-serif);
  font-size: 13.5px;
  font-weight: 700;
  color: var(--accent-gold);
}

.card-part-meta {
  font-size: 11px;
  font-family: var(--font-mono);
  color: var(--text-dim);
  display: flex;
  gap: 8px;
}

.card-body-text {
  padding: 14px 16px;
  font-size: 13.5px;
  line-height: 1.7;
  color: #e2e8f0;
  white-space: pre-wrap;
}

.card-actions-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: rgba(0, 0, 0, 0.2);
  border-top: 1px solid rgba(255, 255, 255, 0.03);
  padding: 6px 14px;
}

.card-action-btn {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-subtle);
  color: var(--text-muted);
  font-size: 11px;
  padding: 3px 8px;
  border-radius: 4px;
  cursor: pointer;
  transition: all 0.2s ease;
}

.card-action-btn:hover {
  background: rgba(59, 130, 246, 0.2);
  color: #93c5fd;
  border-color: var(--accent-blue);
}

.card-action-btn.copy-btn:hover {
  background: rgba(16, 185, 129, 0.2);
  color: #34d399;
  border-color: var(--accent-emerald);
}

/* FOCUS FULLSCREEN MODE */
.app-layout.focus-mode .sidebar-left,
.app-layout.focus-mode .panel-center {
  display: none !important;
}

.app-layout.focus-mode .workspace-container {
  grid-template-columns: 1fr !important;
}

.app-layout.focus-mode .panel-right {
  max-width: 900px;
  margin: 0 auto;
  border-left: 1px solid var(--border-subtle);
  border-right: 1px solid var(--border-subtle);
}

.feedback-inline {
  font-size: 11.5px;
  font-weight: 500;
  margin-left: 10px;
}
.feedback-inline.success {
  color: #34d399;
}
.feedback-inline.error {
  color: #f87171;
}

/* WIDE MODAL & SETTINGS TABS */
.modal-dialog.wide {
  max-width: 680px;
}

.settings-nav {
  display: flex;
  gap: 8px;
  border-bottom: 1px solid var(--border-subtle);
  padding-bottom: 10px;
  margin-bottom: 14px;
}

.settings-tab {
  background: none;
  border: none;
  color: var(--text-dim);
  font-size: 13px;
  font-weight: 600;
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all 0.2s ease;
}

.settings-tab:hover {
  color: var(--text-main);
  background: rgba(255, 255, 255, 0.04);
}

.settings-tab.active {
  color: #93c5fd;
  background: rgba(59, 130, 246, 0.15);
}

.settings-tab-content {
  display: none;
  flex-direction: column;
  gap: 12px;
}

.settings-tab-content.active {
  display: flex;
}

/* PRICING TABLE COMPACT */
.pricing-header-actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 8px;
}

.badge-multiplier {
  background: rgba(245, 158, 11, 0.15);
  border: 1px solid rgba(245, 158, 11, 0.3);
  color: #fbbf24;
  padding: 2px 7px;
  border-radius: 4px;
  font-size: 11px;
  font-weight: 600;
  margin-left: 8px;
}

.pricing-table-container {
  max-height: 220px;
  overflow-y: auto;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  background: var(--bg-tertiary);
}

.compact-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 12px;
}

.compact-table th {
  background: var(--bg-secondary);
  color: var(--text-dim);
  text-transform: uppercase;
  font-size: 10.5px;
  padding: 8px 10px;
  text-align: left;
  border-bottom: 1px solid var(--border-subtle);
  position: sticky;
  top: 0;
}

.compact-table td {
  padding: 7px 10px;
  border-bottom: 1px solid var(--border-subtle);
  color: var(--text-main);
}

.compact-table tr:hover td {
  background: var(--bg-card-hover);
}

.pricing-note {
  font-size: 11.5px;
  color: var(--text-muted);
  background: rgba(59, 130, 246, 0.08);
  border-left: 3px solid var(--accent-blue);
  padding: 8px 12px;
  border-radius: 4px;
  margin-top: 6px;
}

.folder-quick-links {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 6px;
}

/* UTILITIES */
.hidden {
  display: none !important;
}

/* SCROLLBAR */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}
::-webkit-scrollbar-track {
  background: var(--scrollbar-track);
}
::-webkit-scrollbar-thumb {
  background: var(--scrollbar-thumb);
  border-radius: 3px;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--scrollbar-thumb-hover);
}

/* ====================================================
   📜 RETRO VINTAGE SPECIALIZED STYLES (Chế độ Giấy Cổ & Bản Thảo)
   ==================================================== */
[data-theme="vintage"] {
  background-color: var(--bg-primary);
  color: var(--text-main);
}

[data-theme="vintage"] .brand-title {
  background: linear-gradient(135deg, #78350f 0%, #b45309 50%, #92400e 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  font-family: var(--font-serif);
  letter-spacing: 1.2px;
  font-weight: 900;
}

[data-theme="vintage"] .brand-icon {
  background: linear-gradient(135deg, #b45309, #78350f);
  box-shadow: 0 2px 10px rgba(180, 83, 9, 0.35);
  color: #fffaf0;
}

[data-theme="vintage"] .brand-subtitle {
  color: #78624d;
}

[data-theme="vintage"] .sidebar-title,
[data-theme="vintage"] .section-title,
[data-theme="vintage"] .panel-title,
[data-theme="vintage"] .modal-title {
  font-family: var(--font-serif);
  letter-spacing: 0.5px;
  color: #382717;
}

/* Thẻ Storyboard phong cách Manuscript Folio */
[data-theme="vintage"] .storyboard-card {
  background: #fcf9f2;
  border: 1px solid #d9c8aa;
  border-top: 3px solid #b45309;
  box-shadow: 0 3px 12px rgba(84, 58, 25, 0.08);
}

[data-theme="vintage"] .storyboard-card:hover {
  background: #ffffff;
  border-color: #b45309;
  box-shadow: 0 8px 24px rgba(84, 58, 25, 0.14);
}

[data-theme="vintage"] .storyboard-card-header {
  background: #f7eedb;
  border-bottom: 1px solid #decfaa;
}

[data-theme="vintage"] .storyboard-card-title {
  font-family: var(--font-serif);
  color: #2e1f14;
  font-weight: 700;
}

[data-theme="vintage"] .part-chip {
  background: #ebdcc2;
  border: 1px solid #d1be9a;
  color: #4f361c;
  font-family: var(--font-serif);
  font-weight: 700;
  letter-spacing: 0.5px;
}

[data-theme="vintage"] .storyboard-card-body {
  font-family: var(--font-reading);
  font-size: 16.5px;
  line-height: 1.75;
  color: #241c15;
}

[data-theme="vintage"] .storyboard-card-footer {
  background: #f8f1e2;
  border-top: 1px solid #e2d4b6;
}

/* Khung đọc văn bản chính (Rendered Output) */
[data-theme="vintage"] #renderedOutput {
  background: #faf5eb;
  font-family: var(--font-reading);
  font-size: 17px;
  line-height: 1.8;
  color: #241c15;
  letter-spacing: 0.1px;
}

[data-theme="vintage"] #renderedOutput h1,
[data-theme="vintage"] #renderedOutput h2,
[data-theme="vintage"] #renderedOutput h3 {
  font-family: var(--font-serif);
  color: #2c1e13;
  border-bottom-color: #d8c7a8;
}

[data-theme="vintage"] #renderedOutput blockquote {
  border-left-color: #b45309;
  background: rgba(180, 83, 9, 0.05);
  color: #4a3827;
  font-style: italic;
}

/* Thanh điều hướng nhanh Jump-to-Part */
[data-theme="vintage"] .jump-navbar {
  background: #eee2cc;
  border-bottom: 1px solid #d8c7a7;
}

[data-theme="vintage"] .jump-chip {
  background: #fcf9f2;
  border: 1px solid #d5c3a3;
  color: #553e28;
}

[data-theme="vintage"] .jump-chip:hover {
  background: #b45309;
  border-color: #92400e;
  color: #ffffff;
}

/* Nút bấm & Input */
[data-theme="vintage"] .btn-primary {
  background: linear-gradient(135deg, #b45309 0%, #78350f 100%);
  color: #fffefb;
  border: 1px solid #6b2e0a;
  box-shadow: 0 2px 8px rgba(180, 83, 9, 0.3);
}

[data-theme="vintage"] .btn-primary:hover {
  background: linear-gradient(135deg, #c26e07 0%, #9a4210 100%);
  box-shadow: 0 4px 14px rgba(180, 83, 9, 0.4);
}

[data-theme="vintage"] .btn-secondary {
  background: #faf4e6;
  border: 1px solid #d6c4a4;
  color: #3e2e1e;
}

[data-theme="vintage"] .btn-secondary:hover {
  background: #ffffff;
  border-color: #b45309;
  color: #241c15;
}

[data-theme="vintage"] .btn-ghost {
  color: #5e4c3a;
}

[data-theme="vintage"] .btn-ghost:hover {
  background: #e3d3b7;
  color: #241c15;
}

[data-theme="vintage"] .styled-input,
[data-theme="vintage"] .styled-textarea,
[data-theme="vintage"] .styled-select {
  background: #fdfbf7;
  border: 1px solid #d6c5a7;
  color: #241c15;
}

[data-theme="vintage"] .styled-input:focus,
[data-theme="vintage"] .styled-textarea:focus,
[data-theme="vintage"] .styled-select:focus {
  border-color: #b45309;
  box-shadow: 0 0 0 3px rgba(180, 83, 9, 0.15);
  background: #ffffff;
}

[data-theme="vintage"] .btn-card-action {
  background: #fdfbf7;
  border: 1px solid #d8c7a8;
  color: #553e28;
}

[data-theme="vintage"] .btn-card-action:hover {
  background: #b45309;
  color: #ffffff;
  border-color: #92400e;
}

[data-theme="vintage"] .btn-copy-eleven {
  background: #efe4cf;
  border-color: #d1be9a;
  color: #49331d;
}

[data-theme="vintage"] .btn-copy-eleven:hover {
  background: #b45309;
  border-color: #78350f;
  color: #ffffff;
}

[data-theme="vintage"] .metric-card {
  background: #faf5eb;
  border: 1px solid #ded0b4;
}

[data-theme="vintage"] .metric-value {
  color: #2e1f13;
  font-family: var(--font-serif);
}

[data-theme="vintage"] .progress-bar-fill {
  background: linear-gradient(90deg, #b45309, #d97706, #f59e0b);
}

[data-theme="vintage"] .project-item {
  background: #faf5eb;
  border: 1px solid #ded0b4;
}

[data-theme="vintage"] .project-item:hover,
[data-theme="vintage"] .project-item.active {
  background: #ffffff;
  border-color: #b45309;
  box-shadow: 0 2px 8px rgba(84, 58, 25, 0.08);
}

[data-theme="vintage"] .sample-btn {
  background: #faf4e6;
  border: 1px solid #d8c8a8;
  color: #453322;
}

[data-theme="vintage"] .sample-btn:hover {
  background: #ffffff;
  border-color: #b45309;
}

/* ====================================================
   🕯️ WARM SEPIA SPECIALIZED STYLES (Gỗ Trầm & Ánh Nến)
   ==================================================== */
[data-theme="sepia"] .brand-title {
  background: linear-gradient(135deg, #fbbf24 0%, #f59e0b 50%, #d97706 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  font-family: var(--font-serif);
}

[data-theme="sepia"] .storyboard-card-title,
[data-theme="sepia"] .sidebar-title,
[data-theme="sepia"] .section-title,
[data-theme="sepia"] .panel-title {
  font-family: var(--font-serif);
}

[data-theme="sepia"] .storyboard-card-body,
[data-theme="sepia"] #renderedOutput {
  font-family: var(--font-reading);
  font-size: 16.5px;
  line-height: 1.75;
}

/* ====================================================
   🏷️ GITHUB STUDIO BADGE
   ==================================================== */
.badge-studio-ver {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.8px;
  text-transform: uppercase;
  background: rgba(56, 189, 248, 0.12);
  color: #38bdf8;
  border: 1px solid rgba(56, 189, 248, 0.35);
  padding: 2px 7px;
  border-radius: 4px;
  display: inline-block;
}

/* ====================================================
   🌑 GITHUB PRO DARK SPECIALIZED STYLES (Chuẩn GitHub / Linear Studio)
   ==================================================== */
[data-theme="dark"] {
  background-color: #07090e;
  color: #f0f6fc;
}

[data-theme="dark"] .app-header {
  background: #0d1117 !important;
  backdrop-filter: none !important;
  -webkit-backdrop-filter: none !important;
  border-bottom: 1px solid #30363d;
}

[data-theme="dark"] .brand-title {
  background: linear-gradient(135deg, #ffffff 0%, #38bdf8 55%, #818cf8 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  font-family: var(--font-sans);
  font-size: 16px;
  font-weight: 800;
  letter-spacing: 0.6px;
}

[data-theme="dark"] .brand-subtitle {
  color: #8b949e;
  font-size: 11px;
}

[data-theme="dark"] .sidebar-panel,
[data-theme="dark"] .main-content-panel {
  background: rgba(13, 17, 23, 0.65);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1px solid rgba(48, 54, 61, 0.65);
  border-radius: var(--radius-lg);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.35);
}

[data-theme="dark"] .sidebar-title,
[data-theme="dark"] .section-title,
[data-theme="dark"] .panel-title,
[data-theme="dark"] .modal-title {
  font-family: var(--font-sans);
  font-weight: 700;
  color: #f0f6fc;
  letter-spacing: 0.3px;
}

[data-theme="dark"] .styled-input,
[data-theme="dark"] .styled-select,
[data-theme="dark"] .styled-textarea {
  background: #0d1117;
  border: 1px solid #30363d;
  color: #f0f6fc;
  transition: all 0.2s ease;
}

[data-theme="dark"] .styled-input:focus,
[data-theme="dark"] .styled-select:focus,
[data-theme="dark"] .styled-textarea:focus {
  border-color: #38bdf8;
  box-shadow: 0 0 0 3px rgba(56, 189, 248, 0.18);
}

[data-theme="dark"] .btn-chip {
  background: rgba(22, 27, 34, 0.85);
  border: 1px solid #30363d;
  color: #c9d1d9;
}

[data-theme="dark"] .btn-chip:hover {
  background: #21262d;
  border-color: #8b949e;
  color: #ffffff;
}

[data-theme="dark"] .btn-chip.active {
  background: rgba(56, 189, 248, 0.16);
  border-color: #38bdf8;
  color: #7dd3fc;
  box-shadow: 0 0 12px rgba(56, 189, 248, 0.25);
  font-weight: 600;
}

[data-theme="dark"] .mode-tab {
  background: rgba(22, 27, 34, 0.65);
  border: 1px solid #30363d;
  color: #c9d1d9;
}

[data-theme="dark"] .mode-tab:hover {
  background: rgba(33, 38, 45, 0.95);
  border-color: #58a6ff;
  color: #ffffff;
}

[data-theme="dark"] .mode-tab.active {
  background: linear-gradient(135deg, rgba(56, 189, 248, 0.18), rgba(99, 102, 241, 0.12));
  border-color: #38bdf8;
  color: #ffffff;
  box-shadow: 0 0 16px rgba(56, 189, 248, 0.22);
}

[data-theme="dark"] .metrics-bar {
  background: rgba(22, 27, 34, 0.75);
  border: 1px solid #30363d;
  backdrop-filter: blur(10px);
  border-radius: var(--radius-md);
}

[data-theme="dark"] .metric-label {
  color: #8b949e;
}

[data-theme="dark"] .metric-val {
  color: #f0f6fc;
}

[data-theme="dark"] .metric-val.highlight {
  color: #38bdf8;
}

[data-theme="dark"] .output-tabs {
  background: #0d1117;
  border: 1px solid #30363d;
}

[data-theme="dark"] .out-tab {
  color: #8b949e;
}

[data-theme="dark"] .out-tab:hover {
  color: #f0f6fc;
}

[data-theme="dark"] .out-tab.active {
  background: #21262d;
  color: #ffffff;
  border-color: #38bdf8;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.35);
}

[data-theme="dark"] .storyboard-card {
  background: rgba(22, 27, 34, 0.75);
  border: 1px solid #30363d;
  backdrop-filter: blur(10px);
  border-radius: var(--radius-md);
}

[data-theme="dark"] .storyboard-card:hover {
  border-color: #38bdf8;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4), 0 0 16px rgba(56, 189, 248, 0.18);
}

[data-theme="dark"] .btn-primary {
  background: linear-gradient(135deg, #0284c7, #2563eb);
  box-shadow: 0 4px 14px rgba(2, 132, 199, 0.35);
  border: none;
}

[data-theme="dark"] .btn-primary:hover {
  background: linear-gradient(135deg, #0369a1, #1d4ed8);
  box-shadow: 0 6px 18px rgba(2, 132, 199, 0.5);
}

[data-theme="dark"] .script-progress-fill {
  background: linear-gradient(90deg, #0284c7, #38bdf8, #818cf8);
  box-shadow: 0 0 12px rgba(56, 189, 248, 0.5);
}

/* ====================================================
   🛡️ TITANIUM MATTE SPECIALIZED STYLES (Titan Nhám Hiện Đại)
   ==================================================== */
[data-theme="titan"], body[data-theme="titan"] {
  background-color: #0c1017;
  color: #f1f5f9;
}

[data-theme="titan"] .app-header {
  background: rgba(13, 17, 23, 0.92) !important;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(148, 163, 184, 0.16) !important;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.45);
}

[data-theme="titan"] .brand-title {
  background: linear-gradient(135deg, #f8fafc 0%, #cbd5e1 50%, #38bdf8 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  font-weight: 800;
  letter-spacing: 0.8px;
}

[data-theme="titan"] .brand-icon {
  background: linear-gradient(135deg, #475569 0%, #1e293b 100%);
  border: 1px solid rgba(255, 255, 255, 0.2);
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.4), inset 0 1px 1px rgba(255, 255, 255, 0.2);
}

[data-theme="titan"] .panel-center,
[data-theme="titan"] .panel-right,
[data-theme="titan"] .sidebar {
  background: transparent;
}

[data-theme="titan"] .channel-gems-bar,
[data-theme="titan"] .mode-selector,
[data-theme="titan"] .metrics-bar,
[data-theme="titan"] .output-tabs-row {
  background: rgba(18, 23, 33, 0.75);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1px solid rgba(148, 163, 184, 0.15);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.3);
}

[data-theme="titan"] .styled-input,
[data-theme="titan"] .styled-textarea,
[data-theme="titan"] .styled-select {
  background: rgba(12, 16, 23, 0.8);
  border: 1px solid rgba(148, 163, 184, 0.18);
  color: #f8fafc;
  box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.35);
  transition: all 0.2s ease;
}

[data-theme="titan"] .styled-input:focus,
[data-theme="titan"] .styled-textarea:focus,
[data-theme="titan"] .styled-select:focus {
  border-color: #38bdf8;
  background: rgba(15, 20, 28, 0.95);
  box-shadow: 0 0 0 3px rgba(56, 189, 248, 0.18), inset 0 2px 4px rgba(0, 0, 0, 0.3);
}

[data-theme="titan"] .storyboard-card {
  background: rgba(22, 28, 40, 0.65);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1px solid rgba(148, 163, 184, 0.16);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.35);
}

[data-theme="titan"] .storyboard-card:hover {
  background: rgba(26, 34, 48, 0.88);
  border-color: #38bdf8;
  box-shadow: 0 10px 28px rgba(0, 0, 0, 0.45), 0 0 18px rgba(56, 189, 248, 0.18);
}

[data-theme="titan"] .storyboard-card-header {
  border-bottom: 1px solid rgba(148, 163, 184, 0.14);
}

[data-theme="titan"] .storyboard-card-title {
  color: #f8fafc;
  font-weight: 700;
}

[data-theme="titan"] .out-tab {
  color: #94a3b8;
}

[data-theme="titan"] .out-tab:hover {
  color: #f8fafc;
}

[data-theme="titan"] .out-tab.active {
  background: rgba(33, 42, 59, 0.9);
  color: #ffffff;
  border-color: #38bdf8;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.35), 0 0 12px rgba(56, 189, 248, 0.2);
}

[data-theme="titan"] .mode-tab {
  background: rgba(18, 23, 33, 0.55);
  border: 1px solid rgba(148, 163, 184, 0.14);
}

[data-theme="titan"] .mode-tab:hover {
  background: rgba(26, 33, 47, 0.8);
  border-color: rgba(56, 189, 248, 0.3);
}

[data-theme="titan"] .mode-tab.active {
  background: rgba(28, 38, 54, 0.95);
  border-color: #38bdf8;
  box-shadow: 0 0 18px rgba(56, 189, 248, 0.22);
}

[data-theme="titan"] .btn-primary {
  background: linear-gradient(135deg, #0284c7 0%, #0369a1 100%);
  border: 1px solid rgba(56, 189, 248, 0.4);
  box-shadow: 0 4px 14px rgba(2, 132, 199, 0.4);
}

[data-theme="titan"] .btn-primary:hover {
  background: linear-gradient(135deg, #0369a1 0%, #075985 100%);
  box-shadow: 0 6px 18px rgba(2, 132, 199, 0.55);
}

[data-theme="titan"] .btn-secondary {
  background: rgba(26, 33, 46, 0.8);
  border: 1px solid rgba(148, 163, 184, 0.2);
  color: #e2e8f0;
}

[data-theme="titan"] .btn-secondary:hover {
  background: rgba(38, 48, 66, 0.95);
  border-color: #94a3b8;
  color: #ffffff;
}

[data-theme="titan"] .project-item {
  background: rgba(18, 24, 34, 0.7);
  border: 1px solid rgba(148, 163, 184, 0.15);
}

[data-theme="titan"] .project-item:hover,
[data-theme="titan"] .project-item.active {
  background: rgba(28, 37, 52, 0.95);
  border-color: #38bdf8;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.35);
}

[data-theme="titan"] .modal-dialog {
  background: rgba(15, 20, 28, 0.95);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(148, 163, 184, 0.2);
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.7), 0 0 30px rgba(56, 189, 248, 0.12);
}

/* ====================================================
   STUDIO AUTHENTICATION OVERLAY & SECURITY
   ==================================================== */
.studio-auth-overlay {
  position: fixed;
  inset: 0;
  background: rgba(7, 9, 14, 0.88);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 99999;
  padding: 20px;
  transition: opacity 0.35s ease, visibility 0.35s ease;
}

.studio-auth-overlay.hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.auth-card {
  width: 100%;
  max-width: 440px;
  background: #0d1117;
  border: 1px solid rgba(56, 189, 248, 0.3);
  border-radius: 16px;
  padding: 32px 28px;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.8), 0 0 30px rgba(56, 189, 248, 0.15);
  animation: authCardPop 0.35s cubic-bezier(0.16, 1, 0.3, 1);
  display: flex;
  flex-direction: column;
}

@keyframes authCardPop {
  0% { transform: scale(0.92); opacity: 0; }
  100% { transform: scale(1); opacity: 1; }
}

.auth-header {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 12px;
}

.auth-logo-box {
  width: 48px;
  height: 48px;
  background: #ffffff;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 4px;
  box-shadow: 0 4px 14px rgba(2, 132, 199, 0.3);
  flex-shrink: 0;
}

.auth-logo-img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.auth-title-group {
  display: flex;
  flex-direction: column;
}

.auth-title {
  font-size: 18px;
  font-weight: 800;
  background: linear-gradient(135deg, #ffffff 0%, #38bdf8 50%, #818cf8 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  letter-spacing: 0.5px;
  margin: 0;
}

.auth-badge {
  font-size: 9.5px;
  font-weight: 700;
  letter-spacing: 0.8px;
  color: #38bdf8;
  text-transform: uppercase;
}

.auth-desc {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.5;
  margin-bottom: 20px;
}

.auth-form {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.auth-error-msg {
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  background: rgba(239, 68, 68, 0.15);
  border: 1px solid rgba(239, 68, 68, 0.4);
  color: #fca5a5;
  font-size: 12.5px;
  line-height: 1.4;
  animation: shake 0.3s ease;
}

@keyframes shake {
  0%, 100% { transform: translateX(0); }
  25% { transform: translateX(-6px); }
  75% { transform: translateX(6px); }
}

.auth-field {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.auth-label {
  font-size: 12.5px;
  font-weight: 600;
  color: var(--text-main);
}

.auth-input-wrap {
  position: relative;
  display: flex;
  align-items: center;
}

.auth-icon {
  position: absolute;
  left: 12px;
  font-size: 14px;
  color: var(--text-muted);
  pointer-events: none;
}

.auth-input {
  width: 100%;
  padding: 10px 12px 10px 38px !important;
  font-size: 13.5px !important;
  background: #161b22 !important;
  border: 1px solid #30363d !important;
  border-radius: 8px !important;
  color: #f0f6fc !important;
  transition: all 0.2s ease;
}

.auth-input:focus {
  border-color: #38bdf8 !important;
  box-shadow: 0 0 12px rgba(56, 189, 248, 0.25) !important;
}

.auth-row-options {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 2px;
}

.auth-btn-submit {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 16px;
  font-size: 14px;
  font-weight: 700;
  border-radius: 8px;
  margin-top: 4px;
  background: linear-gradient(135deg, #0284c7, #2563eb);
  color: #fff;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.2s ease;
}

.auth-btn-submit:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(2, 132, 199, 0.45);
}

.auth-footer {
  margin-top: 20px;
  text-align: center;
  font-size: 11px;
  color: var(--text-dim);
  border-top: 1px solid rgba(48, 54, 61, 0.6);
  padding-top: 14px;
}

/* User pill & Logout button in Header */
.auth-user-control {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-shrink: 0;
}

.auth-user-pill {
  font-size: 11.5px;
  color: #7dd3fc;
  background: rgba(56, 189, 248, 0.1);
  border: 1px solid rgba(56, 189, 248, 0.25);
  padding: 4px 8px;
  border-radius: 6px;
  white-space: nowrap;
}

.btn-logout {
  color: #f87171 !important;
  border-color: rgba(248, 113, 113, 0.3) !important;
}

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

/* Styled Details & SEO Prompt Customizer */
.styled-details {
  background: var(--bg-card, rgba(22, 27, 34, 0.4));
  border: 1px dashed var(--border-color, #30363d);
  border-radius: var(--radius-md, 8px);
  padding: 10px 14px;
  transition: all 0.25s ease;
}

.styled-details[open] {
  border-style: solid;
  border-color: rgba(56, 189, 248, 0.4);
  background: rgba(15, 23, 42, 0.55);
}

.details-summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
  user-select: none;
  font-size: 13px;
  color: var(--text-secondary, #94a3b8);
  font-weight: 500;
  outline: none;
  list-style: none;
}

.details-summary::-webkit-details-marker {
  display: none;
}

.details-summary:hover {
  color: #38bdf8;
}

.toggle-arrow {
  transition: transform 0.2s ease;
  font-size: 14px;
  color: var(--text-muted, #64748b);
}

.styled-details[open] .toggle-arrow {
  transform: rotate(180deg);
}

.badge-mini {
  font-size: 10.5px;
  padding: 2px 7px;
  border-radius: 4px;
  background: rgba(148, 163, 184, 0.12);
  color: var(--text-secondary, #94a3b8);
  border: 1px solid rgba(148, 163, 184, 0.2);
  font-weight: 400;
}

.badge-mini.modified {
  background: rgba(245, 158, 11, 0.15);
  color: #fbbf24;
  border-color: rgba(245, 158, 11, 0.35);
  font-weight: 600;
}

/* AI Topic Suggestions Box */
.topic-suggestions-box {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background: var(--bg-card, #161b22);
  border: 1px solid rgba(56, 189, 248, 0.35);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.45);
  border-radius: var(--radius-md, 8px);
  z-index: 100;
  margin-top: 6px;
  overflow: hidden;
  backdrop-filter: blur(12px);
}

.suggestions-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 8px 12px;
  background: rgba(56, 189, 248, 0.1);
  border-bottom: 1px solid rgba(56, 189, 248, 0.2);
  font-size: 12px;
  color: #7dd3fc;
}

.btn-close-mini {
  background: transparent;
  border: none;
  color: var(--text-muted, #64748b);
  cursor: pointer;
  font-size: 16px;
  padding: 0 4px;
}

.btn-close-mini:hover {
  color: #f87171;
}

.suggestions-list {
  max-height: 280px;
  overflow-y: auto;
}

.suggestion-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  cursor: pointer;
  transition: all 0.2s ease;
}

.suggestion-item:last-child {
  border-bottom: none;
}

.suggestion-item:hover {
  background: rgba(56, 189, 248, 0.12);
}

.suggestion-num {
  font-weight: 700;
  font-size: 12px;
  color: #38bdf8;
  background: rgba(56, 189, 248, 0.15);
  padding: 3px 6px;
  border-radius: 4px;
  flex-shrink: 0;
}

.suggestion-body {
  flex: 1;
}

.suggestion-title {
  font-weight: 600;
  font-size: 13px;
  color: #f1f5f9;
  margin-bottom: 3px;
}

.suggestion-hook {
  font-size: 11.5px;
  color: var(--text-secondary, #94a3b8);
  line-height: 1.4;
}

/* Button Highlights */
.highlight-sky {
  border-color: rgba(56, 189, 248, 0.4) !important;
  color: #7dd3fc !important;
  background: rgba(56, 189, 248, 0.1) !important;
}

.highlight-sky:hover {
  background: rgba(56, 189, 248, 0.2) !important;
}

.highlight-amber {
  border-color: rgba(245, 158, 11, 0.4) !important;
  color: #fcd34d !important;
  background: rgba(245, 158, 11, 0.1) !important;
}

.highlight-amber:hover {
  background: rgba(245, 158, 11, 0.2) !important;
}

/* History Drawer & Delete Button */
.drawer-backdrop {
  justify-content: flex-end !important;
  padding: 0 !important;
}

.modal-dialog.drawer-right {
  margin: 0 !important;
  height: 100vh !important;
  max-height: 100vh !important;
  width: 420px !important;
  max-width: 90vw !important;
  border-radius: 0 !important;
  border-top: none !important;
  border-bottom: none !important;
  border-right: none !important;
  animation: slideDrawer 0.3s cubic-bezier(0.16, 1, 0.3, 1) !important;
  display: flex;
  flex-direction: column;
}

@keyframes slideDrawer {
  from {
    transform: translateX(100%);
  }
  to {
    transform: translateX(0);
  }
}

.btn-delete-project {
  background: transparent;
  border: none;
  color: var(--text-muted, #64748b);
  cursor: pointer;
  font-size: 16px;
  padding: 2px 6px;
  border-radius: 4px;
  transition: all 0.2s ease;
}

.btn-delete-project:hover {
  color: #f87171;
  background: rgba(239, 68, 68, 0.15);
}

/* ==========================================================================
   🖼️ Ô NGUỒN CẢM HỨNG SÁNG TẠO & KHUNG ẢNH ĐỂ BÀN (STUDIO MASCOT & INSPIRATION)
   ========================================================================== */

/* Header Mini Avatar */
.auth-child-avatar-wrap {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  overflow: hidden;
  border: 1.5px solid #f59e0b;
  box-shadow: 0 0 10px rgba(245, 158, 11, 0.4);
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.auth-child-avatar-wrap:hover {
  transform: scale(1.1);
  box-shadow: 0 0 14px rgba(245, 158, 11, 0.7);
}

.auth-child-avatar {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
  display: block;
}

/* 🌟 Primary Showcase Card inside Empty Studio Dashboard */
.studio-inspiration-showcase {
  display: flex;
  align-items: center;
  gap: 24px;
  width: 100%;
  background: linear-gradient(135deg, rgba(22, 27, 34, 0.95), rgba(15, 20, 27, 0.98));
  border: 1px solid rgba(212, 175, 55, 0.4);
  border-radius: var(--radius-lg);
  padding: 18px 22px;
  margin-bottom: 24px;
  box-shadow: 0 12px 35px rgba(0, 0, 0, 0.5), 0 0 25px rgba(212, 175, 55, 0.08);
  position: relative;
  overflow: hidden;
  text-align: left;
}

.studio-inspiration-showcase::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, #f59e0b, #eab308, transparent);
}

.inspiration-photo-frame {
  position: relative;
  width: 155px;
  height: 215px;
  border-radius: 12px;
  overflow: hidden;
  border: 2px solid rgba(212, 175, 55, 0.65);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.65);
  flex-shrink: 0;
  cursor: pointer;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
  background: #0d1117;
}

.inspiration-photo-frame:hover {
  transform: translateY(-3px) scale(1.02);
  box-shadow: 0 12px 30px rgba(212, 175, 55, 0.35);
}

.inspiration-photo-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
  display: block;
  filter: contrast(1.04) saturate(1.06);
}

.photo-shine-effect {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.16) 0%, transparent 60%);
  pointer-events: none;
}

.photo-corner-badge {
  position: absolute;
  top: 8px;
  left: 8px;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid rgba(212, 175, 55, 0.5);
  color: #fde047;
  font-size: 11px;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 20px;
  letter-spacing: 0.3px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.4);
}

.photo-zoom-hint {
  position: absolute;
  bottom: 8px;
  right: 8px;
  background: rgba(0, 0, 0, 0.75);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: #e2e8f0;
  font-size: 10px;
  padding: 3px 7px;
  border-radius: 4px;
  opacity: 0;
  transition: opacity 0.2s ease;
  pointer-events: none;
}

.inspiration-photo-frame:hover .photo-zoom-hint {
  opacity: 1;
}

.inspiration-text-content {
  display: flex;
  flex-direction: column;
  gap: 9px;
  flex: 1;
}

.inspiration-badge-row {
  display: flex;
  align-items: center;
  gap: 8px;
}

.inspiration-tag {
  font-size: 11px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  color: #f59e0b;
  background: rgba(245, 158, 11, 0.12);
  border: 1px solid rgba(245, 158, 11, 0.35);
  padding: 3px 10px;
  border-radius: 12px;
}

.inspiration-subtag {
  font-size: 11px;
  color: var(--text-muted);
}

.inspiration-headline {
  font-family: var(--font-sans);
  font-size: 16.5px;
  font-weight: 800;
  color: #f0f6fc;
  margin: 0;
  line-height: 1.4;
  letter-spacing: 0.2px;
}

.inspiration-quote {
  font-size: 13px;
  line-height: 1.6;
  color: #cbd5e1;
  font-style: italic;
  margin: 0;
  border-left: 2.5px solid rgba(212, 175, 55, 0.55);
  padding-left: 12px;
}

.inspiration-meta-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 4px;
}

.meta-chip {
  font-size: 11px;
  font-weight: 600;
  color: #94a3b8;
  background: rgba(30, 41, 59, 0.7);
  border: 1px solid rgba(51, 65, 85, 0.8);
  padding: 3px 9px;
  border-radius: 6px;
}

/* 🖼️ Floating Desk Photo Widget (Góc dưới phải màn hình) */
.desk-photo-widget {
  position: fixed;
  bottom: 20px;
  right: 24px;
  z-index: 9999;
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  font-family: var(--font-sans);
}

.desk-photo-widget.minimized .desk-widget-card {
  display: none !important;
}

.desk-photo-widget:not(.minimized) .desk-widget-min {
  display: none !important;
}

.desk-widget-min {
  display: flex;
  align-items: center;
  gap: 8px;
  background: rgba(22, 27, 34, 0.94);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1.5px solid rgba(212, 175, 55, 0.5);
  padding: 5px 12px 5px 6px;
  border-radius: 30px;
  cursor: pointer;
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.45);
  transition: all 0.2s ease;
}

.desk-widget-min:hover {
  transform: translateY(-2px);
  border-color: #f59e0b;
  box-shadow: 0 8px 25px rgba(245, 158, 11, 0.35);
}

.desk-min-avatar {
  width: 26px;
  height: 26px;
  border-radius: 50%;
  object-fit: cover;
  object-position: center top;
  border: 1.5px solid #f59e0b;
}

.desk-min-label {
  font-size: 12px;
  font-weight: 700;
  color: #fde047;
  letter-spacing: 0.2px;
}

.desk-widget-card {
  width: 190px;
  background: rgba(22, 27, 34, 0.96);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1.5px solid rgba(212, 175, 55, 0.55);
  border-radius: 14px;
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.65), 0 0 25px rgba(212, 175, 55, 0.15);
  overflow: hidden;
  animation: fadeIn 0.25s ease;
}

.desk-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 12px;
  background: rgba(13, 17, 23, 0.85);
  border-bottom: 1px solid rgba(212, 175, 55, 0.25);
}

.desk-card-title {
  font-size: 11px;
  font-weight: 700;
  color: #fde047;
  letter-spacing: 0.3px;
}

.desk-btn-close {
  background: transparent;
  border: none;
  color: #94a3b8;
  font-size: 16px;
  cursor: pointer;
  padding: 0 4px;
  line-height: 1;
  transition: color 0.2s ease;
}

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

.desk-photo-wrapper {
  padding: 10px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}

.desk-photo-img {
  width: 100%;
  height: 230px;
  object-fit: cover;
  object-position: center top;
  border-radius: 8px;
  border: 1px solid rgba(212, 175, 55, 0.4);
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.5);
  display: block;
  cursor: pointer;
  transition: transform 0.2s ease;
}

.desk-photo-img:hover {
  transform: scale(1.02);
}

.desk-photo-caption {
  font-size: 11px;
  font-weight: 600;
  color: #cbd5e1;
  text-align: center;
}

/* 🔍 Lightbox Modal for HD Viewing */
.mascot-modal {
  position: fixed;
  inset: 0;
  z-index: 20000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.mascot-modal.hidden {
  display: none !important;
}

.mascot-modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.85);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.mascot-modal-content {
  position: relative;
  z-index: 1;
  max-width: 440px;
  width: 100%;
  background: #161b22;
  border: 1.5px solid rgba(212, 175, 55, 0.6);
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.8), 0 0 30px rgba(212, 175, 55, 0.25);
  display: flex;
  flex-direction: column;
  animation: fadeIn 0.25s ease;
}

.mascot-modal-close {
  position: absolute;
  top: 12px;
  right: 14px;
  background: rgba(0, 0, 0, 0.7);
  border: 1px solid rgba(255, 255, 255, 0.3);
  color: #fff;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  font-size: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: 2;
  transition: all 0.2s ease;
}

.mascot-modal-close:hover {
  background: #dc2626;
  border-color: #dc2626;
}

.mascot-modal-img {
  width: 100%;
  max-height: 520px;
  object-fit: cover;
  object-position: center top;
  display: block;
}

.mascot-modal-footer {
  padding: 16px 20px;
  background: #0d1117;
  text-align: center;
}

.mascot-modal-footer h4 {
  font-size: 15px;
  font-weight: 700;
  color: #fde047;
  margin: 0 0 6px 0;
}

.mascot-modal-footer p {
  font-size: 12px;
  color: #94a3b8;
  margin: 0;
  line-height: 1.5;
}

/* ====================================================
   🏢 ENTERPRISE CORPORATE FOOTER (ETERLIGHT LTD)
   ==================================================== */
.studio-enterprise-footer {
  width: 100%;
  background: rgba(13, 17, 23, 0.95);
  border-top: 1px solid rgba(148, 163, 184, 0.16);
  padding: 24px 32px;
  margin-top: 20px;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.studio-enterprise-footer .footer-container {
  max-width: 1500px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.4fr 1.2fr 1fr;
  gap: 32px;
  align-items: start;
}

.footer-brand-title {
  font-size: 15px;
  font-weight: 800;
  letter-spacing: 0.08em;
  background: linear-gradient(135deg, #ffffff 0%, #38bdf8 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 8px;
}

.footer-brand-desc {
  font-size: 12px;
  line-height: 1.6;
  color: #94a3b8;
  margin: 0;
}

.footer-brand-desc strong {
  color: #f8fafc;
}

.footer-col-heading {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: #38bdf8;
  margin-bottom: 8px;
}

.footer-tech-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-tech-list li {
  font-size: 12px;
  color: #cbd5e1;
  margin-bottom: 4px;
}

.footer-legal-text {
  font-size: 12px;
  color: #94a3b8;
  line-height: 1.5;
  margin: 0 0 8px 0;
}

.footer-copyright {
  font-size: 11px;
  color: #64748b;
  margin: 0;
}

.footer-copyright strong {
  color: #cbd5e1;
}

@media (max-width: 900px) {
  .studio-enterprise-footer .footer-container {
    grid-template-columns: 1fr;
    gap: 20px;
  }
}