/* ==========================================================================
   CSV Matrix Pro - Next-Level CSS Styles
   ========================================================================== */

:root {
  --font-sans: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  /* Luxury Light Theme Palette (Default) */
  --bg-main: #f4f6fb;
  --bg-card: #ffffff;
  --bg-surface: #edf1f8;
  --bg-hover: #e2e8f5;
  
  --border-color: #e1e7f0;
  --border-active: #6366f1;

  --text-main: #0f172a;
  --text-muted: #475569;
  --text-dim: #94a3b8;

  --accent-blue: #4f46e5;
  --accent-blue-hover: #4338ca;
  --accent-purple: #7c3aed;
  --accent-cyan: #0284c7;
  --accent-emerald: #059669;
  --accent-rose: #e11d48;
  --accent-amber: #d97706;

  --shadow-sm: 0 2px 4px rgba(15, 23, 42, 0.03), 0 1px 2px rgba(15, 23, 42, 0.02);
  --shadow-md: 0 8px 16px -4px rgba(15, 23, 42, 0.06), 0 4px 6px -2px rgba(15, 23, 42, 0.03);
  --shadow-lg: 0 20px 30px -8px rgba(15, 23, 42, 0.08), 0 10px 15px -4px rgba(15, 23, 42, 0.04);

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 18px;
}

[data-theme="dark"] {
  --bg-main: #090d16;
  --bg-card: #111827;
  --bg-surface: #1a2333;
  --bg-hover: #263347;

  --border-color: #1e293b;
  --border-active: #6366f1;

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

  --accent-blue: #6366f1;
  --accent-blue-hover: #4f46e5;

  --shadow-md: 0 8px 16px -4px rgba(0, 0, 0, 0.3), 0 4px 6px -2px rgba(0, 0, 0, 0.2);
  --shadow-lg: 0 20px 30px -8px rgba(0, 0, 0, 0.5), 0 10px 15px -4px rgba(0, 0, 0, 0.3);
}

/* Reset & Box Sizing */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

/* Custom Text Selection Highlight in Blue */
::selection {
  background-color: #3b82f6;
  color: #ffffff;
}

::-moz-selection {
  background-color: #3b82f6;
  color: #ffffff;
}

/* Accessibility & SEO Screen Reader Utility */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg-main);
  color: var(--text-main);
  height: 100vh;
  overflow: hidden;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

.app-container {
  display: flex;
  flex-direction: column;
  height: 100vh;
  width: 100vw;
  overflow: hidden;
}

/* Single-Row Compact Header */
.app-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.45rem 1.25rem;
  background-color: var(--bg-card);
  border-bottom: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
  z-index: 20;
  gap: 1rem;
}

.header-left {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-shrink: 0;
}

.brand-logo-link {
  display: flex;
  align-items: center;
  text-decoration: none;
  transition: transform 0.2s ease, opacity 0.2s ease;
}

.brand-logo-link:hover {
  transform: scale(1.03);
  opacity: 0.95;
}

.brand-logo-img {
  height: 28px;
  width: auto;
  object-fit: contain;
}

.brand-text h1 {
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  display: flex;
  align-items: center;
  gap: 0.4rem;
  white-space: nowrap;
}

.badge-pro {
  font-size: 0.6rem;
  font-weight: 800;
  padding: 0.1rem 0.35rem;
  background: linear-gradient(135deg, var(--accent-blue), var(--accent-cyan));
  color: #fff;
  border-radius: var(--radius-sm);
  letter-spacing: 0.05em;
}

/* Header Center: Compact Search + Metrics */
.header-center {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex: 1;
  max-width: 600px;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  flex-shrink: 0;
}

/* Metrics Chips */
.metrics-bar {
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.metric-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  height: 36px;
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 0 0.75rem;
  font-size: 0.76rem;
  font-weight: 600;
  color: var(--text-muted);
  white-space: nowrap;
}

.metric-chip i {
  font-size: 0.7rem;
  color: var(--accent-blue);
}

.metric-chip span {
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--text-main);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  height: 36px;
  padding: 0 1rem;
  font-family: var(--font-sans);
  font-size: 0.82rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  user-select: none;
  box-shadow: var(--shadow-sm);
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(135deg, #4f46e5, #6366f1);
  color: #ffffff;
  box-shadow: 0 4px 14px rgba(79, 70, 229, 0.25);
}
.btn-primary:hover {
  background: linear-gradient(135deg, #4338ca, #4f46e5);
  box-shadow: 0 6px 18px rgba(79, 70, 229, 0.35);
  transform: translateY(-1px);
}

.btn-secondary {
  background-color: var(--bg-surface);
  color: var(--text-main);
  border-color: var(--border-color);
}
.btn-secondary:hover {
  background-color: var(--bg-hover);
  border-color: var(--text-muted);
  transform: translateY(-1px);
}

.btn-accent {
  background: linear-gradient(135deg, #059669, #10b981);
  color: #ffffff;
  box-shadow: 0 4px 14px rgba(16, 185, 129, 0.25);
}
.btn-accent:hover {
  background: linear-gradient(135deg, #047857, #059669);
  box-shadow: 0 6px 18px rgba(16, 185, 129, 0.35);
  transform: translateY(-1px);
}

.btn-outline {
  background: var(--bg-card);
  color: var(--text-main);
  border: 1px solid var(--border-color);
}
.btn-outline:hover {
  background-color: var(--bg-surface);
  border-color: var(--accent-blue);
  color: var(--accent-blue);
  transform: translateY(-1px);
}

.btn-ghost {
  background: transparent;
  color: var(--text-muted);
}
.btn-ghost:hover {
  color: var(--text-main);
  background-color: var(--bg-surface);
}

.btn-sm {
  height: 36px;
  padding: 0 0.85rem;
  font-size: 0.82rem;
}

.btn-icon {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  width: 36px;
  height: 36px;
  min-width: 36px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.95rem;
  transition: all 0.25s ease;
  box-shadow: var(--shadow-sm);
  padding: 0;
}
.btn-icon:hover {
  background: var(--bg-hover);
  border-color: var(--text-muted);
  transform: scale(1.03);
}

/* Dropdown Menu */
.dropdown {
  position: relative;
}

.dropdown-toggle .fa-chevron-down {
  transition: transform 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

.dropdown.open .dropdown-toggle .fa-chevron-down {
  transform: rotate(180deg);
}

.dropdown-menu {
  position: absolute;
  right: 0;
  top: calc(100% + 6px);
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-lg);
  display: none;
  flex-direction: column;
  min-width: 200px;
  overflow: hidden;
  z-index: 100;
  padding: 0.35rem 0;
  backdrop-filter: blur(8px);
}

.dropdown-menu.show {
  display: flex;
  animation: fadeInDown 0.2s ease-out;
}

@keyframes fadeInDown {
  from {
    opacity: 0;
    transform: translateY(-8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.dropdown-menu button {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  padding: 0.65rem 1.1rem;
  background: transparent;
  border: none;
  color: var(--text-main);
  font-size: 0.85rem;
  font-family: var(--font-sans);
  font-weight: 500;
  text-align: left;
  cursor: pointer;
  transition: all 0.15s ease;
}

.dropdown-menu button:hover {
  background-color: var(--bg-surface);
  color: var(--accent-blue);
}

/* Toolbar & Metrics */
.toolbar-section {
  padding: 0.85rem 1.5rem;
  background-color: var(--bg-card);
  border-bottom: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  box-shadow: var(--shadow-sm);
}

.metrics-bar {
  display: flex;
  gap: 1rem;
  overflow-x: auto;
  padding-bottom: 2px;
}

.metric-card {
  background: linear-gradient(145deg, var(--bg-card), var(--bg-surface));
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 0.45rem 1rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  white-space: nowrap;
  box-shadow: var(--shadow-sm);
  transition: all 0.2s ease;
}

.metric-card:hover {
  border-color: var(--accent-blue);
  box-shadow: var(--shadow-md);
}

.metric-label {
  font-size: 0.7rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-weight: 700;
}

.metric-value {
  font-size: 0.95rem;
  font-weight: 700;
  font-family: var(--font-mono);
  color: var(--accent-blue);
}

.controls-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
}

.search-box {
  position: relative;
  flex: 1;
  max-width: 450px;
}

.search-icon {
  position: absolute;
  left: 0.75rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  font-size: 0.9rem;
}

.search-box input {
  width: 100%;
  height: 36px;
  padding: 0 2.2rem 0 2.2rem;
  background-color: var(--bg-main);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--text-main);
  font-family: var(--font-sans);
  font-size: 0.82rem;
  transition: all 0.2s ease;
}

.search-box input:focus {
  outline: none;
  border-color: var(--accent-blue);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.15);
}

.clear-btn {
  position: absolute;
  right: 0.6rem;
  top: 50%;
  transform: translateY(-50%);
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-size: 0.8rem;
  cursor: pointer;
  padding: 0.2rem;
}

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

.control-actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

/* Grid & Table Section */
.grid-section {
  flex: 1;
  position: relative;
  overflow: hidden;
  background-color: var(--bg-main);
}

.table-wrapper {
  height: 100%;
  width: 100%;
  overflow: auto;
  position: relative;
}

/* Luxury Hero Empty State - Modern Dot & Square Grid Pattern Background */
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 100%;
  text-align: center;
  padding: 3rem 1.5rem;
  position: relative;
  background-color: var(--bg-main);
  background-image: 
    radial-gradient(circle at center, rgba(79, 70, 229, 0.08) 0%, transparent 65%),
    radial-gradient(rgba(79, 70, 229, 0.22) 1.2px, transparent 1.2px),
    linear-gradient(to right, rgba(79, 70, 229, 0.04) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(79, 70, 229, 0.04) 1px, transparent 1px);
  background-size: 100% 100%, 24px 24px, 48px 48px, 48px 48px;
  background-position: center, 0 0, 0 0, 0 0;
}

[data-theme="dark"] .empty-state {
  background-image: 
    radial-gradient(circle at center, rgba(99, 102, 241, 0.15) 0%, transparent 70%),
    radial-gradient(rgba(99, 102, 241, 0.35) 1.2px, transparent 1.2px),
    linear-gradient(to right, rgba(99, 102, 241, 0.07) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(99, 102, 241, 0.07) 1px, transparent 1px);
}

.empty-hero-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2.25rem;
  max-width: 1200px;
  width: 100%;
}

.empty-card-hero {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 2.75rem 3rem;
  max-width: 840px;
  width: 100%;
  box-shadow: 0 20px 40px -15px rgba(0, 0, 0, 0.08);
  display: flex;
  flex-direction: column;
  align-items: center;
}

.empty-icon {
  font-size: 3.5rem;
  margin-bottom: 1rem;
  color: var(--accent-blue);
  background: rgba(79, 70, 229, 0.1);
  width: 80px;
  height: 80px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 8px 24px -4px rgba(79, 70, 229, 0.25);
}

.empty-state h2 {
  font-size: 1.55rem;
  color: var(--text-main);
  font-weight: 800;
  margin-bottom: 0.5rem;
  letter-spacing: -0.02em;
}

.empty-state p {
  max-width: 480px;
  font-size: 0.9rem;
  line-height: 1.55;
  color: var(--text-dim);
  margin-bottom: 1.5rem;
}

.hero-actions-group {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 2rem;
}

.btn-hero-upload {
  height: 44px !important;
  padding: 0 1.75rem !important;
  font-size: 0.92rem !important;
  border-radius: 10px !important;
  cursor: pointer;
}

.empty-features-badges {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border-color);
  width: 100%;
}

.feature-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.4rem 0.75rem;
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: 20px;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text-main);
}

.feature-badge i {
  color: var(--accent-blue);
  font-size: 0.75rem;
}

/* Ultra-Modern Hero Spotlight Card */
.hero-spotlight-card {
  background: rgba(255, 255, 255, 0.7);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid rgba(79, 70, 229, 0.18);
  border-radius: 24px;
  padding: 3.25rem 2.85rem;
  width: 100%;
  box-shadow: 0 25px 60px -15px rgba(79, 70, 229, 0.12), 0 0 0 1px rgba(255, 255, 255, 0.8) inset;
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 2.75rem;
  align-items: center;
  text-align: left;
  position: relative;
  overflow: hidden;
}

[data-theme="dark"] .hero-spotlight-card {
  background: rgba(15, 23, 42, 0.75);
  border-color: rgba(99, 102, 241, 0.25);
  box-shadow: 0 25px 60px -15px rgba(0, 0, 0, 0.5), 0 0 0 1px rgba(255, 255, 255, 0.05) inset;
}

@media (max-width: 950px) {
  .hero-spotlight-card {
    grid-template-columns: 1fr;
    text-align: center;
    padding: 2.25rem 1.5rem;
  }
}

.hero-badge-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.35rem 0.85rem;
  background: rgba(79, 70, 229, 0.1);
  border: 1px solid rgba(79, 70, 229, 0.22);
  border-radius: 30px;
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--accent-blue);
  margin-bottom: 1.15rem;
  width: fit-content;
  align-self: flex-start;
}

.live-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: #10b981;
  box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.25);
  animation: livePulse 2s infinite;
}

@keyframes livePulse {
  0%, 100% { transform: scale(1); opacity: 1; }
  50% { transform: scale(1.25); opacity: 0.7; }
}

.hero-title-gradient {
  font-size: 2.35rem;
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 0.85rem;
  letter-spacing: -0.03em;
  background: linear-gradient(135deg, var(--text-main) 30%, var(--accent-blue) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-subtitle {
  font-size: 0.95rem;
  color: var(--text-dim);
  line-height: 1.65;
  margin-bottom: 1.85rem;
}

/* Prominent Interactive Drag & Drop Zone Box */
.drag-drop-hero-box {
  background: var(--bg-card);
  border: 2px dashed rgba(79, 70, 229, 0.35);
  border-radius: 16px;
  padding: 1.65rem 1.5rem;
  margin-bottom: 1.85rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  box-shadow: 0 10px 25px -5px rgba(79, 70, 229, 0.08);
  transition: all 0.25s ease;
  position: relative;
}

.drag-drop-hero-box:hover {
  border-color: var(--accent-blue);
  background: rgba(79, 70, 229, 0.03);
  transform: translateY(-2px);
  box-shadow: 0 15px 35px -8px rgba(79, 70, 229, 0.15);
}

.drop-icon-glow {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: rgba(79, 70, 229, 0.12);
  color: var(--accent-blue);
  font-size: 1.4rem;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 0.85rem;
  box-shadow: 0 0 20px rgba(79, 70, 229, 0.2);
}

.drop-text-group h4 {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 0.25rem;
}

.drop-text-group p {
  font-size: 0.82rem;
  color: var(--text-dim);
  margin-bottom: 1.15rem;
}

.drop-text-group code {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  padding: 1px 5px;
  border-radius: 4px;
  font-family: var(--font-mono);
  font-size: 0.76rem;
  color: var(--accent-blue);
}

.drop-actions-row {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
  justify-content: center;
}

.btn-hero-upload {
  height: 42px !important;
  padding: 0 1.5rem !important;
  font-size: 0.9rem !important;
  border-radius: 10px !important;
  cursor: pointer;
  box-shadow: 0 4px 14px rgba(79, 70, 229, 0.3) !important;
}

.btn-hero-sample {
  height: 42px !important;
  padding: 0 1.25rem !important;
  font-size: 0.88rem !important;
  border-radius: 10px !important;
  cursor: pointer;
}

.hero-proof-bar {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  flex-wrap: wrap;
  padding-top: 1.15rem;
  border-top: 1px solid var(--border-color);
}

.proof-chip {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  font-size: 0.8rem;
  color: var(--text-dim);
}

.text-amber { color: var(--accent-amber); }

.text-emerald { color: var(--accent-emerald); }
.text-accent { color: var(--accent-blue); }

.bg-indigo-subtle { background: rgba(79, 70, 229, 0.12); color: #4f46e5; }
.bg-emerald-subtle { background: rgba(16, 185, 129, 0.12); color: #10b981; }
.bg-purple-subtle { background: rgba(147, 51, 234, 0.12); color: #9333ea; }
.bg-rose-subtle { background: rgba(225, 29, 72, 0.12); color: #e11d48; }
.bg-blue-subtle { background: rgba(59, 130, 246, 0.12); color: #3b82f6; }
.bg-amber-subtle { background: rgba(245, 158, 11, 0.12); color: #d97706; }
.bg-cyan-subtle { background: rgba(6, 182, 212, 0.12); color: #0891b2; }
.bg-teal-subtle { background: rgba(20, 184, 166, 0.12); color: #0d9488; }

.spotlight-left {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  height: 100%;
}

.spotlight-right {
  display: flex;
  flex-direction: column;
  justify-content: center;
  height: 100%;
}

/* Live Interactive Preview Box - Flat Crisp & Balanced */
.interactive-preview-box {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  box-shadow: 0 16px 36px -8px rgba(15, 23, 42, 0.08);
  overflow: hidden;
  transition: all 0.25s ease;
  width: 100%;
}

.interactive-preview-box:hover {
  border-color: var(--accent-blue);
  box-shadow: 0 20px 40px -10px rgba(79, 70, 229, 0.18);
  transform: translateY(-2px);
}

.preview-box-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 1.15rem;
  background: linear-gradient(180deg, var(--bg-surface) 0%, var(--bg-card) 100%);
  border-bottom: 1px solid var(--border-color);
}

.preview-dots {
  display: flex;
  align-items: center;
  gap: 7px;
}

.preview-dots span {
  width: 11px;
  height: 11px;
  border-radius: 50%;
  display: inline-block;
  transition: transform 0.15s ease;
  cursor: pointer;
}

.preview-dots span:hover {
  transform: scale(1.15);
}

.dot-red {
  background-color: #ff5f56;
  border: 1px solid #e0443e;
}

.dot-yellow {
  background-color: #ffbd2e;
  border: 1px solid #dea123;
}

.dot-green {
  background-color: #27c93f;
  border: 1px solid #1aab29;
}

.preview-demo-badge {
  background: linear-gradient(135deg, #4f46e5, #6366f1);
  color: #ffffff;
  border: none;
  border-radius: 8px;
  padding: 0.35rem 0.85rem;
  font-size: 0.76rem;
  font-weight: 700;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 0.4rem;
  box-shadow: 0 4px 14px rgba(79, 70, 229, 0.35);
  transition: all 0.2s ease;
}

.preview-demo-badge:hover {
  background: linear-gradient(135deg, #4338ca, #4f46e5);
  transform: scale(1.04);
  box-shadow: 0 6px 18px rgba(79, 70, 229, 0.5);
}

.preview-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.6rem 1rem;
  background-color: rgba(237, 241, 248, 0.4);
  border-bottom: 1px solid var(--border-color);
  font-size: 0.76rem;
}

[data-theme="dark"] .preview-toolbar {
  background-color: rgba(15, 23, 42, 0.4);
}

.preview-search {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  color: var(--text-main);
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  padding: 0.3rem 0.7rem;
  border-radius: 6px;
  font-size: 0.76rem;
  box-shadow: 0 1px 3px rgba(0,0,0,0.05);
}

.preview-search i {
  color: var(--accent-blue);
  font-size: 0.7rem;
}

.preview-chip {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.74rem;
  font-weight: 700;
  color: var(--text-muted);
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  padding: 0.3rem 0.65rem;
  border-radius: 6px;
}

.preview-table-mini {
  display: flex;
  flex-direction: column;
  font-size: 0.8rem;
}

.mini-tr {
  display: grid;
  grid-template-columns: 70px 1.2fr 1fr 90px;
  border-bottom: 1px solid var(--border-color);
  padding: 0.65rem 0.9rem;
  align-items: center;
  transition: background-color 0.15s ease;
}

.mini-tr:last-child {
  border-bottom: none;
}

.mini-tr:hover:not(.mini-th) {
  background-color: var(--bg-hover);
}

.mini-th {
  font-weight: 800;
  text-transform: uppercase;
  font-size: 0.72rem;
  letter-spacing: 0.04em;
  color: var(--text-muted);
  background: var(--bg-surface);
}

.mini-cell {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.mini-cell.pinned {
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--accent-blue);
  border-right: 2px solid var(--accent-blue);
  padding-right: 0.4rem;
}

.active-edit-row {
  background-color: rgba(79, 70, 229, 0.04) !important;
}

.editing-demo {
  color: var(--accent-blue) !important;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.editing-demo .icon-edit {
  font-size: 0.7rem;
  color: var(--accent-blue);
  animation: pulse 1.5s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 0.5; }
  50% { opacity: 1; }
}

.tag-chip {
  display: inline-flex;
  align-items: center;
  padding: 2px 8px;
  border-radius: 6px;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.01em;
}
.tag-purple { background: rgba(147, 51, 234, 0.1); color: #9333ea; border: 1px solid rgba(147, 51, 234, 0.2); }
.tag-blue { background: rgba(59, 130, 246, 0.1); color: #3b82f6; border: 1px solid rgba(59, 130, 246, 0.2); }
.tag-emerald { background: rgba(16, 185, 129, 0.1); color: #10b981; border: 1px solid rgba(16, 185, 129, 0.2); }

/* Luxury Sections Common Header */
.luxury-section {
  width: 100%;
  margin-top: 1rem;
}

.section-header-centered {
  text-align: center;
  margin-bottom: 1.75rem;
}

.section-kicker {
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  color: var(--accent-blue);
  text-transform: uppercase;
  display: block;
  margin-bottom: 0.35rem;
}

.section-header-centered h3 {
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--text-main);
  letter-spacing: -0.02em;
}

/* Process Timeline Section */
.process-timeline {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

@media (max-width: 850px) {
  .process-timeline {
    flex-direction: column;
  }
  .timeline-connector {
    transform: rotate(90deg);
  }
}

.timeline-card {
  flex: 1;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 14px;
  padding: 1.75rem 1.5rem;
  text-align: left;
  position: relative;
  box-shadow: var(--shadow-sm);
  transition: all 0.25s ease;
}

.timeline-card:hover {
  border-color: var(--accent-blue);
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
}

.timeline-step {
  position: absolute;
  top: 1rem;
  right: 1.25rem;
  font-family: var(--font-mono);
  font-weight: 800;
  font-size: 1.1rem;
  color: var(--border-color);
}

.timeline-icon {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  background: rgba(79, 70, 229, 0.1);
  color: var(--accent-blue);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.15rem;
  margin-bottom: 1rem;
}

.timeline-card h4 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 0.4rem;
}

.timeline-card p {
  font-size: 0.83rem;
  color: var(--text-dim);
  line-height: 1.55;
  margin: 0;
}

.timeline-connector {
  color: var(--border-color);
  font-size: 1.2rem;
}

/* Capabilities Banner Grid */
.capabilities-banner-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.25rem;
}

.capability-banner-item {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 14px;
  padding: 1.5rem;
  display: flex;
  align-items: flex-start;
  gap: 1.15rem;
  text-align: left;
  box-shadow: var(--shadow-sm);
  transition: all 0.25s ease;
}

.capability-banner-item:hover {
  border-color: var(--accent-blue);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.banner-icon-circle {
  width: 44px;
  height: 44px;
  min-width: 44px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.15rem;
}

.bg-indigo-subtle { background: rgba(79, 70, 229, 0.1); color: #4f46e5; }
.bg-emerald-subtle { background: rgba(16, 185, 129, 0.1); color: #10b981; }
.bg-purple-subtle { background: rgba(147, 51, 234, 0.1); color: #9333ea; }
.bg-rose-subtle { background: rgba(225, 29, 72, 0.1); color: #e11d48; }

.banner-content h4 {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 0.35rem;
}

.banner-content p {
  font-size: 0.82rem;
  color: var(--text-dim);
  line-height: 1.55;
  margin: 0;
}

/* FAQ Accordion Container */
.faq-accordion-container {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  max-width: 800px;
  margin: 0 auto;
}

.faq-accordion-item {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  overflow: hidden;
  text-align: left;
  box-shadow: var(--shadow-sm);
  transition: border-color 0.2s ease;
}

.faq-accordion-item[open] {
  border-color: var(--accent-blue);
}

.faq-summary {
  padding: 1.1rem 1.35rem;
  font-size: 0.92rem;
  font-weight: 700;
  color: var(--text-main);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  user-select: none;
  list-style: none;
}

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

.faq-chevron {
  font-size: 0.85rem;
  color: var(--text-muted);
  transition: transform 0.25s ease;
}

.faq-accordion-item[open] .faq-chevron {
  transform: rotate(180deg);
  color: var(--accent-blue);
}

.faq-content {
  padding: 0 1.35rem 1.25rem 1.35rem;
  font-size: 0.85rem;
  color: var(--text-dim);
  line-height: 1.6;
  border-top: 1px solid rgba(0, 0, 0, 0.04);
}

/* Empty State & SEO Landing Content */
.empty-state-wrapper {
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 100%;
  max-width: 960px;
  margin: 0 auto;
  padding: 2.5rem 1.5rem;
  overflow-y: auto;
  max-height: 100%;
}

.empty-state-wrapper::-webkit-scrollbar {
  width: 6px;
}
.empty-state-wrapper::-webkit-scrollbar-thumb {
  background: var(--border-color);
  border-radius: 4px;
}

.seo-landing-content {
  margin-top: 3rem;
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 2.5rem;
}

.seo-features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
  gap: 1.25rem;
}

.seo-feature-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.35rem 1.15rem;
  transition: all 0.25s ease;
  box-shadow: var(--shadow-sm);
}

.seo-feature-card:hover {
  border-color: var(--accent-blue);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.seo-feature-card .feature-icon {
  font-size: 1.35rem;
  color: var(--accent-blue);
  margin-bottom: 0.75rem;
}

.seo-feature-card h3 {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 0.4rem;
}

.seo-feature-card p {
  font-size: 0.82rem;
  color: var(--text-dim);
  line-height: 1.55;
}

.seo-section {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.6rem 1.75rem;
  box-shadow: var(--shadow-sm);
}

.seo-section h2 {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 1rem;
  letter-spacing: -0.01em;
}

.seo-steps-list {
  padding-left: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  font-size: 0.88rem;
  color: var(--text-dim);
  line-height: 1.6;
}

.seo-steps-list code {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  padding: 2px 6px;
  border-radius: 4px;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--accent-blue);
}

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

.faq-item h4 {
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 0.35rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.faq-item h4 i {
  color: var(--accent-blue);
  font-size: 0.82rem;
}

.faq-item p {
  font-size: 0.82rem;
  color: var(--text-dim);
  line-height: 1.55;
}

.seo-footer {
  text-align: center;
  padding: 1rem 0;
  border-top: 1px solid var(--border-color);
  font-size: 0.82rem;
  color: var(--text-muted);
}

.seo-footer a {
  color: var(--accent-blue);
  text-decoration: none;
  font-weight: 600;
}

.seo-footer a:hover {
  text-decoration: underline;
}

/* CSV Data Table */
.csv-table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  font-size: 0.85rem;
}

/* Sticky Table Header */
.csv-table thead {
  position: sticky;
  top: 0;
  z-index: 10;
  background-color: var(--bg-card);
  box-shadow: 0 4px 12px -2px rgba(15, 23, 42, 0.08);
}

.csv-table th {
  padding: 0.75rem 0.9rem;
  text-align: left;
  font-weight: 700;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  color: var(--text-main);
  background-color: var(--bg-card);
  border-bottom: 1px solid var(--border-color);
  border-right: 1px solid var(--border-color);
  user-select: none;
  white-space: nowrap;
}

.th-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  cursor: pointer;
  transition: color 0.15s ease;
}

.th-content:hover {
  color: var(--accent-blue);
}

.sort-icon {
  font-size: 0.75rem;
  color: var(--text-dim);
  transition: color 0.15s ease;
}

.sort-icon.active {
  color: var(--accent-blue);
  font-weight: bold;
}

.col-filter-input {
  width: 100%;
  margin-top: 0.45rem;
  padding: 0.35rem 0.55rem;
  font-size: 0.75rem;
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--text-main);
  transition: all 0.2s ease;
}

.col-filter-input:focus {
  outline: none;
  border-color: var(--accent-blue);
  background-color: var(--bg-card);
  box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.12);
}

/* Table Body */
.csv-table td {
  padding: 0.65rem 0.9rem;
  border-bottom: 1px solid var(--border-color);
  border-right: 1px solid var(--border-color);
  color: var(--text-main);
  white-space: nowrap;
  max-width: 300px;
  overflow: hidden;
  text-overflow: ellipsis;
  font-family: var(--font-sans);
}

.csv-table tbody tr {
  transition: background-color 0.15s ease;
}

.csv-table tbody tr:nth-child(even) {
  background-color: rgba(237, 241, 248, 0.35);
}

[data-theme="dark"] .csv-table tbody tr:nth-child(even) {
  background-color: rgba(26, 35, 51, 0.4);
}

.csv-table tbody tr:hover {
  background-color: var(--bg-hover) !important;
}

.csv-table tr.selected-row {
  background-color: rgba(79, 70, 229, 0.12) !important;
}

/* Delete Row Button Styling */
.btn-delete-row {
  background: rgba(225, 29, 72, 0.06);
  border: 1px solid rgba(225, 29, 72, 0.2);
  color: var(--accent-rose);
  width: 28px;
  height: 28px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  opacity: 1;
}

.btn-delete-row:hover {
  background-color: var(--accent-rose);
  border-color: var(--accent-rose);
  color: #ffffff;
  box-shadow: 0 2px 8px rgba(225, 29, 72, 0.35);
  transform: scale(1.1);
}

.header-controls {
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.btn-pin {
  background: transparent;
  border: none;
  color: var(--text-dim);
  font-size: 0.75rem;
  cursor: pointer;
  padding: 2px 4px;
  border-radius: 4px;
  transition: all 0.2s ease;
  opacity: 0.5;
}

.btn-pin:hover {
  opacity: 1;
  color: var(--accent-blue);
  background-color: var(--bg-surface);
}

.btn-pin.pinned {
  opacity: 1;
  color: var(--accent-blue);
  transform: rotate(-45deg);
}

/* Sticky Pinned Column Mechanism */
.sticky-col {
  position: sticky !important;
  z-index: 6 !important;
  background-color: var(--bg-card) !important;
  border-right: 2px solid var(--accent-blue) !important;
  box-shadow: 4px 0 8px -2px rgba(15, 23, 42, 0.08);
}

thead th.sticky-col {
  z-index: 12 !important;
}

.row-index {
  color: var(--text-dim);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  text-align: center;
  width: 45px;
  min-width: 45px;
  background-color: var(--bg-card);
  position: sticky;
  left: 0;
  z-index: 7;
  border-right: 1px solid var(--border-color);
}

thead th.row-index {
  z-index: 15;
}

/* Inline Editing */
.editable-cell {
  cursor: pointer;
  position: relative;
}

.editable-cell:hover::after {
  content: '\f304';
  font-family: 'Font Awesome 6 Free';
  font-weight: 900;
  position: absolute;
  right: 6px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 0.65rem;
  opacity: 0.4;
  color: var(--text-muted);
}

.cell-editing {
  padding: 0 !important;
}

.cell-editing input {
  width: 100%;
  height: 100%;
  padding: 0.5rem 0.8rem;
  font-family: inherit;
  font-size: inherit;
  background-color: var(--bg-main);
  color: var(--text-main);
  border: 2px solid var(--accent-blue);
  outline: none;
  box-shadow: 0 0 8px rgba(59, 130, 246, 0.3);
}

/* Search Match Highlight */
mark.highlight {
  background-color: #3b82f6;
  color: #ffffff;
  padding: 0;
  border-radius: 0;
}

/* Footer Pagination */
.pagination-footer {
  padding: 0.4rem 1.25rem;
  background-color: var(--bg-card);
  border-top: 1px solid var(--border-color);
  display: flex;
  justify-content: space-between;
  align-items: center;
  z-index: 20;
  box-shadow: 0 -2px 8px rgba(15, 23, 42, 0.04);
}

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

.pagination-controls {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.page-size-selector {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-muted);
}

.page-size-selector select {
  background-color: var(--bg-surface);
  color: var(--text-main);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 0.35rem 0.65rem;
  font-size: 0.82rem;
  font-weight: 600;
  cursor: pointer;
  outline: none;
  transition: all 0.2s ease;
}

.page-size-selector select:focus {
  border-color: var(--accent-blue);
  box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.12);
}

.nav-buttons {
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

.btn-nav {
  width: 34px;
  height: 34px;
  min-width: 34px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  cursor: pointer;
  transition: all 0.2s ease;
  padding: 0;
}

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

.btn-nav:disabled {
  opacity: 0.35;
  cursor: not-allowed;
}

.page-numbers {
  display: flex;
  gap: 0.35rem;
}

.page-num {
  width: 34px;
  height: 34px;
  min-width: 34px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  font-weight: 600;
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all 0.2s ease;
  padding: 0;
}

.page-num:hover:not(.active) {
  background-color: var(--bg-hover);
  border-color: var(--accent-blue);
}

.page-num.active {
  background: linear-gradient(135deg, #4f46e5, #6366f1);
  border-color: #4f46e5;
  color: #ffffff;
  font-weight: 700;
  box-shadow: 0 2px 8px rgba(79, 70, 229, 0.35);
}

/* Drop Zone */
.drop-zone {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.75);
  backdrop-filter: blur(12px);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 3px dashed var(--accent-blue);
}

.drop-zone.hidden {
  display: none;
}

.drop-content {
  text-align: center;
  color: #ffffff;
}

.drop-icon {
  font-size: 4.5rem;
  margin-bottom: 1rem;
  color: var(--accent-blue);
  animation: bounce 1.5s infinite;
}

@keyframes bounce {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-15px); }
}

/* Toast Notifications */
.toast-container {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  z-index: 2000;
}

.toast {
  padding: 0.85rem 1.35rem;
  background: var(--bg-card);
  border-left: 4px solid var(--accent-blue);
  color: var(--text-main);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  font-size: 0.88rem;
  font-weight: 500;
  animation: slideInRight 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

@keyframes slideInRight {
  from {
    opacity: 0;
    transform: translateX(40px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

.toast-success {
  border-left-color: var(--accent-emerald);
}

.toast-error {
  border-left-color: var(--accent-rose);
}

.hidden {
  display: none !important;
}