/* Modern CSS Theme & Layout for PDF & Image Compressor */
:root {
  --font-main: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  /* Color Palette - Dark (Default) */
  --bg-primary: #0b0f19;
  --bg-surface: #111827;
  --bg-card: #182235;
  --bg-card-hover: #1f2c42;
  --bg-input: #0e1524;
  
  --border-subtle: #24324d;
  --border-focus: #3b82f6;

  --text-main: #f3f4f6;
  --text-muted: #94a3b8;
  --text-dim: #64748b;

  --primary: #3b82f6;
  --primary-hover: #2563eb;
  --primary-glow: rgba(59, 130, 246, 0.25);
  
  --accent-purple: #8b5cf6;
  --accent-cyan: #06b6d4;
  --accent-success: #10b981;
  --accent-danger: #ef4444;

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

  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.2);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.35);
  --shadow-lg: 0 16px 40px rgba(0, 0, 0, 0.45);
}

[data-theme="light"] {
  --bg-primary: #f8fafc;
  --bg-surface: #ffffff;
  --bg-card: #ffffff;
  --bg-card-hover: #f1f5f9;
  --bg-input: #f1f5f9;

  --border-subtle: #e2e8f0;
  --border-focus: #2563eb;

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

  --primary: #2563eb;
  --primary-hover: #1d4ed8;
  --primary-glow: rgba(37, 99, 235, 0.18);

  --shadow-sm: 0 2px 6px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 8px 20px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 16px 32px rgba(0, 0, 0, 0.1);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  -webkit-tap-highlight-color: transparent;
}

body {
  font-family: var(--font-main);
  background-color: var(--bg-primary);
  color: var(--text-main);
  line-height: 1.6;
  min-height: 100vh;
  transition: background-color 0.3s ease, color 0.3s ease;
  overflow-x: hidden;
}

.app-wrapper {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

/* Typography Helpers */
.gradient-text {
  background: linear-gradient(135deg, #60a5fa 0%, #a78bfa 50%, #38bdf8 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

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

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

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

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

/* Navbar */
.navbar {
  border-bottom: 1px solid var(--border-subtle);
  background: var(--bg-surface);
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(12px);
}

.nav-container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 1rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
}

.logo-icon {
  width: 42px;
  height: 42px;
  border-radius: var(--radius-sm);
  background: linear-gradient(135deg, #2563eb, #7c3aed);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  box-shadow: 0 4px 12px var(--primary-glow);
}

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

.brand-text {
  display: flex;
  align-items: baseline;
  gap: 0.35rem;
}

.brand-title {
  font-size: 1.35rem;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.brand-tag {
  font-size: 0.75rem;
  text-transform: uppercase;
  font-weight: 700;
  letter-spacing: 0.05em;
  padding: 0.15rem 0.45rem;
  background: var(--border-subtle);
  border-radius: var(--radius-full);
  color: var(--text-muted);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.features-badge {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-muted);
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  padding: 0.35rem 0.85rem;
  border-radius: var(--radius-full);
}

.features-badge .dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--accent-success);
  box-shadow: 0 0 8px var(--accent-success);
}

.theme-btn {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  color: var(--text-main);
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.2s ease;
}

.theme-btn:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-focus);
}

.theme-btn svg {
  width: 18px;
  height: 18px;
}

[data-theme="dark"] .sun-icon {
  display: block;
}
[data-theme="dark"] .moon-icon {
  display: none;
}
[data-theme="light"] .sun-icon {
  display: none;
}
[data-theme="light"] .moon-icon {
  display: block;
}

/* Main Container */
.main-container {
  max-width: 1040px;
  margin: 0 auto;
  padding: 2.5rem 1.5rem 4rem;
  flex: 1;
  width: 100%;
}

/* Hero Section */
.hero-section {
  text-align: center;
  margin-bottom: 2.5rem;
}

.hero-title {
  font-size: 2.75rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  margin-bottom: 0.85rem;
  line-height: 1.2;
}

.hero-subtitle {
  font-size: 1.12rem;
  color: var(--text-muted);
  max-width: 680px;
  margin: 0 auto;
}

/* Dropzone Card */
.dropzone-card {
  background: var(--bg-surface);
  border: 2px dashed var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 3.5rem 2rem;
  text-align: center;
  cursor: pointer;
  transition: all 0.25s ease;
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.dropzone-card:hover, .dropzone-card.drag-over {
  border-color: var(--primary);
  background: var(--bg-card-hover);
  transform: translateY(-2px);
  box-shadow: 0 12px 30px var(--primary-glow);
}

.upload-icon-container {
  width: 76px;
  height: 76px;
  margin: 0 auto 1.5rem;
  border-radius: 50%;
  background: var(--primary-glow);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.25s ease;
}

.dropzone-card:hover .upload-icon-container {
  transform: scale(1.1);
}

.upload-icon-container svg {
  width: 38px;
  height: 38px;
}

.dropzone-heading {
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.dropzone-sub {
  color: var(--text-muted);
  font-size: 1rem;
  margin-bottom: 1.5rem;
}

.browse-btn {
  background: none;
  border: none;
  color: var(--primary);
  font-weight: 600;
  text-decoration: underline;
  cursor: pointer;
  font-size: 1rem;
  font-family: inherit;
}

.supported-formats {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.format-pill {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 600;
  padding: 0.25rem 0.65rem;
  border-radius: var(--radius-sm);
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  color: var(--text-muted);
}

/* File Queue Section */
.file-queue-section {
  margin-top: 2.5rem;
}

.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1rem;
  flex-wrap: wrap;
  gap: 0.75rem;
}

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

.section-title {
  font-size: 1.3rem;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.total-size-pill {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 600;
  background: var(--bg-card);
  padding: 0.25rem 0.65rem;
  border-radius: var(--radius-full);
  border: 1px solid var(--border-subtle);
  color: var(--primary);
}

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

.queue-instruction {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 1.25rem;
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.queue-instruction kbd {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: 4px;
  padding: 0.1rem 0.35rem;
  font-size: 0.75rem;
  font-family: var(--font-mono);
}

/* File Cards Grid */
.file-cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1rem;
}

.file-item-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1rem;
  display: flex;
  align-items: center;
  gap: 1rem;
  position: relative;
  transition: all 0.2s ease;
  box-shadow: var(--shadow-sm);
}

.file-item-card:hover {
  border-color: var(--border-focus);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.file-thumb-container {
  width: 60px;
  height: 72px;
  background: var(--bg-card);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  border: 1px solid var(--border-subtle);
  flex-shrink: 0;
  position: relative;
}

.file-thumb-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.file-type-badge {
  position: absolute;
  bottom: 2px;
  right: 2px;
  font-size: 0.6rem;
  font-family: var(--font-mono);
  font-weight: 700;
  padding: 1px 4px;
  border-radius: 3px;
  text-transform: uppercase;
}

.badge-pdf {
  background: #dc2626;
  color: #fff;
}

.badge-img {
  background: #0284c7;
  color: #fff;
}

.file-info {
  flex: 1;
  min-width: 0;
}

.file-name {
  font-size: 0.92rem;
  font-weight: 600;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  margin-bottom: 0.25rem;
}

.file-meta-row {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.78rem;
  color: var(--text-muted);
}

.file-order-controls {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.btn-icon-control {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  color: var(--text-muted);
  width: 26px;
  height: 26px;
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.15s ease;
}

.btn-icon-control:hover:not(:disabled) {
  background: var(--bg-card-hover);
  color: var(--text-main);
  border-color: var(--border-focus);
}

.btn-icon-control:disabled {
  opacity: 0.3;
  cursor: not-allowed;
}

.btn-remove-item {
  color: var(--text-dim);
}

.btn-remove-item:hover {
  color: var(--accent-danger) !important;
  border-color: var(--accent-danger) !important;
}

/* Compression Settings Card */
.settings-card {
  margin-top: 2rem;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 2rem;
  box-shadow: var(--shadow-sm);
}

/* Mode Selection Tabs */
.mode-selector {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin: 1.5rem 0;
}

@media (max-width: 640px) {
  .mode-selector {
    grid-template-columns: 1fr;
  }
}

.mode-tab {
  border: 2px solid var(--border-subtle);
  background: var(--bg-card);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  cursor: pointer;
  transition: all 0.2s ease;
  position: relative;
  display: block;
}

.mode-tab input[type="radio"] {
  position: absolute;
  opacity: 0;
}

.mode-tab:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-focus);
}

.mode-tab.active {
  border-color: var(--primary);
  background: var(--bg-card-hover);
  box-shadow: 0 0 0 1px var(--primary), 0 4px 16px var(--primary-glow);
}

.mode-tab-content {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.mode-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  background: var(--primary-glow);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.mode-icon svg {
  width: 22px;
  height: 22px;
}

.mode-info strong {
  display: block;
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 0.2rem;
}

.mode-info span {
  font-size: 0.82rem;
  color: var(--text-muted);
}

/* Form Groups */
.form-group {
  margin-bottom: 1.5rem;
}

.form-group label {
  display: block;
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
  color: var(--text-main);
}

.input-with-extension {
  display: flex;
  align-items: center;
  background: var(--bg-input);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  overflow: hidden;
  max-width: 420px;
}

.input-with-extension input {
  flex: 1;
  background: transparent;
  border: none;
  padding: 0.75rem 1rem;
  color: var(--text-main);
  font-family: inherit;
  font-size: 0.95rem;
  outline: none;
}

.extension-tag {
  padding: 0.75rem 1rem;
  background: var(--bg-card);
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 600;
  border-left: 1px solid var(--border-subtle);
}

/* Presets Grid */
.presets-header {
  margin-bottom: 0.75rem;
}

.label-heading {
  font-size: 0.92rem;
  font-weight: 700;
  color: var(--text-main);
}

.presets-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.preset-card {
  background: var(--bg-card);
  border: 2px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1.25rem 1rem;
  cursor: pointer;
  transition: all 0.2s ease;
  position: relative;
  display: flex;
  flex-direction: column;
}

.preset-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-focus);
}

.preset-card.active {
  border-color: var(--primary);
  background: var(--bg-card-hover);
  box-shadow: 0 4px 16px var(--primary-glow);
}

.preset-badge {
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--primary);
  letter-spacing: 0.04em;
  margin-bottom: 0.4rem;
}

.preset-title {
  font-size: 1.1rem;
  font-weight: 800;
  margin-bottom: 0.4rem;
}

.preset-desc {
  font-size: 0.8rem;
  color: var(--text-muted);
  line-height: 1.4;
  margin-bottom: 0.85rem;
  flex: 1;
}

.preset-meta {
  font-size: 0.74rem;
  font-family: var(--font-mono);
  color: var(--text-dim);
  border-top: 1px solid var(--border-subtle);
  padding-top: 0.5rem;
}

/* Custom Settings Drawer */
.custom-drawer {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  margin-bottom: 1.5rem;
  animation: fadeIn 0.25s ease;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(-6px); }
  to { opacity: 1; transform: translateY(0); }
}

.drawer-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
  margin-bottom: 1.5rem;
}

@media (max-width: 640px) {
  .drawer-grid {
    grid-template-columns: 1fr;
  }
}

.control-box {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.control-label-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.control-label-row label, .control-box label {
  font-size: 0.88rem;
  font-weight: 600;
}

.control-value {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--primary);
}

input[type="range"] {
  width: 100%;
  accent-color: var(--primary);
  cursor: pointer;
}

.control-hint {
  font-size: 0.74rem;
  color: var(--text-dim);
}

.form-select {
  background: var(--bg-input);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 0.65rem 0.85rem;
  color: var(--text-main);
  font-family: inherit;
  font-size: 0.9rem;
  outline: none;
}

.form-select:focus {
  border-color: var(--primary);
}

.toggles-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1rem;
}

.checkbox-card {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 0.85rem 1rem;
  cursor: pointer;
  transition: all 0.2s ease;
}

.checkbox-card:hover {
  border-color: var(--border-focus);
}

.checkbox-card input[type="checkbox"] {
  accent-color: var(--primary);
  margin-top: 0.2rem;
  width: 16px;
  height: 16px;
}

.checkbox-content strong {
  display: block;
  font-size: 0.85rem;
  font-weight: 700;
  margin-bottom: 0.15rem;
}

.checkbox-content span {
  font-size: 0.75rem;
  color: var(--text-muted);
  line-height: 1.3;
}

/* Action Footer */
.action-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-top: 1px solid var(--border-subtle);
  padding-top: 1.5rem;
  margin-top: 1rem;
  flex-wrap: wrap;
  gap: 1rem;
}

.status-summary {
  font-size: 0.95rem;
  color: var(--text-muted);
}

.status-summary strong {
  color: var(--text-main);
}

/* Buttons */
.btn-primary {
  background: linear-gradient(135deg, #2563eb, #1d4ed8);
  color: #fff;
  border: none;
  font-family: inherit;
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  cursor: pointer;
  border-radius: var(--radius-sm);
  transition: all 0.2s ease;
  text-decoration: none;
  box-shadow: 0 4px 14px var(--primary-glow);
}

.btn-primary svg,
.btn-secondary svg {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
}

.btn-primary:hover {
  background: linear-gradient(135deg, #1d4ed8, #1e40af);
  transform: translateY(-1px);
  box-shadow: 0 6px 20px var(--primary-glow);
}

.btn-secondary {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  color: var(--text-main);
  font-family: inherit;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  cursor: pointer;
  border-radius: var(--radius-sm);
  transition: all 0.2s ease;
  text-decoration: none;
}

.btn-secondary:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-focus);
}

.btn-ghost {
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-family: inherit;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  cursor: pointer;
  border-radius: var(--radius-sm);
  transition: all 0.2s ease;
}

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

.btn-sm {
  padding: 0.4rem 0.85rem;
  font-size: 0.84rem;
}

.btn-lg {
  padding: 0.85rem 1.75rem;
  font-size: 1.05rem;
}

/* Progress Card */
.progress-card {
  margin-top: 2rem;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 3.5rem 2rem;
  text-align: center;
  box-shadow: var(--shadow-md);
}

.spinner-orbit {
  width: 60px;
  height: 60px;
  margin: 0 auto 1.5rem;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

.orbit-circle {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  border: 4px solid var(--border-subtle);
  border-top-color: var(--primary);
  animation: spin 0.9s cubic-bezier(0.5, 0.1, 0.5, 0.9) infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

.progress-title {
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: 0.4rem;
}

.progress-status {
  color: var(--text-muted);
  font-size: 0.95rem;
  margin-bottom: 1.5rem;
}

.progress-bar-container {
  width: 100%;
  max-width: 460px;
  height: 8px;
  background: var(--bg-card);
  border-radius: var(--radius-full);
  margin: 0 auto;
  overflow: hidden;
  border: 1px solid var(--border-subtle);
}

.progress-bar-fill {
  height: 100%;
  background: linear-gradient(90deg, #3b82f6, #8b5cf6);
  border-radius: var(--radius-full);
  transition: width 0.4s ease;
}

/* Results Card */
.results-card {
  margin-top: 2rem;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 2.5rem 2rem;
  box-shadow: var(--shadow-md);
  animation: fadeIn 0.3s ease;
}

.success-header {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  margin-bottom: 2rem;
}

.success-icon {
  width: 54px;
  height: 54px;
  border-radius: 50%;
  background: rgba(16, 185, 129, 0.15);
  color: var(--accent-success);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.success-icon svg {
  width: 28px;
  height: 28px;
}

.success-title {
  font-size: 1.6rem;
  font-weight: 800;
  margin-bottom: 0.2rem;
}

.success-subtitle {
  color: var(--text-muted);
  font-size: 0.95rem;
}

/* Stats Banner */
.stats-banner {
  display: flex;
  align-items: center;
  justify-content: space-around;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  margin-bottom: 2rem;
  flex-wrap: wrap;
  gap: 1.25rem;
}

.stat-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.stat-label {
  font-size: 0.8rem;
  text-transform: uppercase;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--text-muted);
  margin-bottom: 0.35rem;
}

.stat-value {
  font-family: var(--font-mono);
  font-size: 1.5rem;
  font-weight: 800;
}

.stat-divider {
  color: var(--text-dim);
  display: flex;
  align-items: center;
}

.stat-divider svg {
  width: 24px;
  height: 24px;
}

.highlight-item {
  background: var(--primary-glow);
  padding: 0.6rem 1.4rem;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(59, 130, 246, 0.3);
}

.results-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 2rem;
}

/* Batch Results List */
.batch-results-list {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  margin-bottom: 2rem;
}

.batch-list-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1rem;
}

.batch-list-header h4 {
  font-size: 1.05rem;
  font-weight: 700;
}

.batch-items-container {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.batch-result-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 0.75rem 1rem;
  gap: 1rem;
}

.batch-row-info {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  min-width: 0;
  flex: 1;
}

.batch-row-name {
  font-size: 0.9rem;
  font-weight: 600;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.batch-row-stats {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-muted);
}

.savings-tag {
  color: var(--accent-success);
  font-weight: 700;
  background: rgba(16, 185, 129, 0.12);
  padding: 0.15rem 0.45rem;
  border-radius: 4px;
}

.results-footer {
  text-align: center;
  border-top: 1px solid var(--border-subtle);
  padding-top: 1.5rem;
}

/* Preview Modal */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.75);
  backdrop-filter: blur(8px);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  animation: fadeIn 0.2s ease;
}

.modal-window {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  width: 100%;
  max-width: 960px;
  height: 88vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.5rem;
  border-bottom: 1px solid var(--border-subtle);
}

.modal-title {
  font-size: 1.15rem;
  font-weight: 700;
}

.modal-header-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.close-modal-btn {
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 1.8rem;
  cursor: pointer;
  line-height: 1;
  padding: 0 0.4rem;
  border-radius: 4px;
}

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

.modal-body {
  flex: 1;
  background: #202124;
  overflow: hidden;
}

.modal-body iframe {
  width: 100%;
  height: 100%;
  border: none;
}

/* Feature Highlights Grid */
.features-grid-section {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.25rem;
  margin-top: 4.5rem;
}

.feature-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1.75rem 1.25rem;
  transition: transform 0.2s ease;
}

.feature-card:hover {
  transform: translateY(-2px);
}

.feature-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  background: var(--primary-glow);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1rem;
}

.feature-icon svg {
  width: 22px;
  height: 22px;
}

.feature-card h4 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 0.4rem;
}

.feature-card p {
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.5;
}

/* Footer */
.app-footer {
  border-top: 1px solid var(--border-subtle);
  background: var(--bg-surface);
  padding: 1.5rem;
  text-align: center;
  font-size: 0.85rem;
  color: var(--text-muted);
}