/* ==========================================================================
   Fuzengine Tools - Premium Unified Design System
   Modern Obsidian Dark / Crisp Slate Light · Responsive · Zero-Dependency
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@400;500;600&family=Plus+Jakarta+Sans:wght@400;500;600;700&family=Sora:wght@600;700;800&display=swap');

:root {
  /* Light Theme Palette (Default Clean) */
  --bg-primary: #F8FAFC;
  --bg-secondary: #FFFFFF;
  --bg-tertiary: #F1F5F9;
  --bg-surface: #FFFFFF;
  --bg-surface-hover: #F8FAFC;
  --bg-glass: rgba(255, 255, 255, 0.82);
  --border-color: #E2E8F0;
  --border-hover: #CBD5E1;
  --border-focus: #10B981;
  
  --text-primary: #0F172A;
  --text-secondary: #334155;
  --text-muted: #64748B;
  --text-faint: #94A3B8;
  
  --accent-primary: #0B7A55;
  --accent-light: #10B981;
  --accent-subtle: #ECFDF5;
  --accent-border: #A7F3D0;
  --accent-gradient: linear-gradient(135deg, #0B7A55 0%, #10B981 100%);
  --accent-glow: rgba(16, 185, 129, 0.22);
  
  --danger: #EF4444;
  --danger-subtle: #FEF2F2;
  --warning: #F59E0B;
  --info: #0284C7;
  
  --shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(15, 23, 42, 0.07), 0 2px 4px -2px rgba(15, 23, 42, 0.05);
  --shadow-lg: 0 10px 25px -3px rgba(15, 23, 42, 0.08), 0 4px 6px -4px rgba(15, 23, 42, 0.04);
  --shadow-xl: 0 20px 35px -5px rgba(15, 23, 42, 0.12);
  
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 18px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  --font-display: 'Sora', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-body: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
  
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 250ms cubic-bezier(0.4, 0, 0.2, 1);
}

[data-theme="dark"] {
  --bg-primary: #0A0F1D;
  --bg-secondary: #0F172A;
  --bg-tertiary: #1E293B;
  --bg-surface: #131D31;
  --bg-surface-hover: #1A263D;
  --bg-glass: rgba(15, 23, 42, 0.85);
  --border-color: #1E293B;
  --border-hover: #334155;
  --border-focus: #34D399;
  
  --text-primary: #F8FAFC;
  --text-secondary: #CBD5E1;
  --text-muted: #94A3B8;
  --text-faint: #64748B;
  
  --accent-primary: #10B981;
  --accent-light: #34D399;
  --accent-subtle: rgba(16, 185, 129, 0.12);
  --accent-border: rgba(52, 211, 153, 0.3);
  --accent-gradient: linear-gradient(135deg, #10B981 0%, #34D399 100%);
  --accent-glow: rgba(52, 211, 153, 0.25);
  
  --danger: #F87171;
  --danger-subtle: rgba(239, 68, 68, 0.12);
  --warning: #FBBF24;
  --info: #38BDF8;
  
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 10px 25px -3px rgba(0, 0, 0, 0.5);
  --shadow-xl: 0 20px 35px -5px rgba(0, 0, 0, 0.65);
}

/* ==========================================================================
   Base & Resets
   ========================================================================== */

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-body);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  transition: background-color var(--transition-normal), color var(--transition-normal);
}

img, svg {
  display: block;
  max-width: 100%;
}

a {
  color: inherit;
  text-decoration: none;
}

button, input, select, textarea {
  font: inherit;
  color: inherit;
}

/* Layout Utilities */
.container {
  width: 100%;
  max-width: 1200px;
  margin-inline: auto;
  padding-inline: 1.5rem;
}

/* ==========================================================================
   Header & Navigation
   ========================================================================== */

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background-color: var(--bg-glass);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-color);
  transition: border-color var(--transition-fast);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 4.25rem;
}

.brand-link {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.25rem;
  letter-spacing: -0.02em;
  color: var(--text-primary);
}

.brand-icon-box {
  width: 2.5rem;
  height: 2.5rem;
  border-radius: var(--radius-md);
  background: var(--accent-gradient);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #FFFFFF;
  box-shadow: 0 4px 12px var(--accent-glow);
}

.brand-tag {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  padding: 0.2rem 0.5rem;
  background: var(--accent-subtle);
  color: var(--accent-primary);
  border: 1px solid var(--accent-border);
  border-radius: var(--radius-full);
}

.header-nav {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.nav-link {
  font-size: 0.925rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: color var(--transition-fast);
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.nav-link:hover, .nav-link.active {
  color: var(--accent-primary);
}

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

/* Theme Toggle Button */
.theme-toggle-btn {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  width: 2.5rem;
  height: 2.5rem;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.theme-toggle-btn:hover {
  background: var(--bg-tertiary);
  color: var(--text-primary);
  border-color: var(--border-hover);
}

.theme-toggle-btn svg {
  width: 1.25rem;
  height: 1.25rem;
}

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

/* ==========================================================================
   Hero Section
   ========================================================================== */

.hero {
  padding-block: 4rem 3rem;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.hero-glow {
  position: absolute;
  top: -100px;
  left: 50%;
  transform: translateX(-50%);
  width: 600px;
  height: 350px;
  background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
  pointer-events: none;
  z-index: 0;
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 820px;
  margin-inline: auto;
}

.hero-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.35rem 0.9rem;
  border-radius: var(--radius-full);
  background: var(--accent-subtle);
  border: 1px solid var(--accent-border);
  color: var(--accent-primary);
  font-size: 0.825rem;
  font-weight: 600;
  margin-bottom: 1.5rem;
}

.hero-pill-dot {
  width: 0.5rem;
  height: 0.5rem;
  border-radius: 50%;
  background: var(--accent-light);
  box-shadow: 0 0 8px var(--accent-light);
  animation: pulse-dot 2s infinite ease-in-out;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.85); }
}

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, 3.25rem);
  font-weight: 800;
  line-height: 1.18;
  letter-spacing: -0.03em;
  color: var(--text-primary);
  margin-bottom: 1.25rem;
}

.hero-title-highlight {
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-subtitle {
  font-size: clamp(1rem, 2vw, 1.15rem);
  color: var(--text-secondary);
  line-height: 1.6;
  max-width: 680px;
  margin-inline: auto;
  margin-bottom: 2.25rem;
}

/* Search & Filter Bar */
.search-filter-wrapper {
  max-width: 640px;
  margin-inline: auto;
  margin-bottom: 3rem;
}

.search-box {
  position: relative;
  display: flex;
  align-items: center;
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 0.5rem 1rem;
  box-shadow: var(--shadow-md);
  transition: all var(--transition-fast);
}

.search-box:focus-within {
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

.search-box svg {
  width: 1.25rem;
  height: 1.25rem;
  color: var(--text-muted);
  margin-right: 0.75rem;
  flex-shrink: 0;
}

.search-input {
  width: 100%;
  background: transparent;
  border: none;
  outline: none;
  color: var(--text-primary);
  font-size: 1rem;
}

.search-input::placeholder {
  color: var(--text-faint);
}

.search-clear-btn {
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 0.25rem;
  display: none;
}

/* Category Filter Pills */
.filter-tabs {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin-top: 1.25rem;
}

.filter-tab {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  padding: 0.45rem 1rem;
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.filter-tab:hover {
  background: var(--bg-tertiary);
  border-color: var(--border-hover);
  color: var(--text-primary);
}

.filter-tab.active {
  background: var(--accent-primary);
  border-color: var(--accent-primary);
  color: #FFFFFF;
}

/* ==========================================================================
   Tools Grid & Cards
   ========================================================================== */

.tools-section {
  padding-bottom: 5rem;
}

.section-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  margin-bottom: 2rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--border-color);
}

.section-title {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.section-desc {
  font-size: 0.9rem;
  color: var(--text-muted);
}

.tools-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 1.5rem;
}

.tool-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.tool-card:hover {
  transform: translateY(-4px);
  border-color: var(--accent-light);
  box-shadow: var(--shadow-lg), 0 0 20px var(--accent-glow);
}

.tool-card-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 1.25rem;
}

.tool-icon-box {
  width: 3.25rem;
  height: 3.25rem;
  border-radius: var(--radius-md);
  background: var(--accent-subtle);
  border: 1px solid var(--accent-border);
  color: var(--accent-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform var(--transition-fast);
}

.tool-card:hover .tool-icon-box {
  transform: scale(1.05);
}

.tool-icon-box svg {
  width: 1.65rem;
  height: 1.65rem;
}

.tool-status-badge {
  font-family: var(--font-mono);
  font-size: 0.725rem;
  font-weight: 600;
  padding: 0.25rem 0.6rem;
  border-radius: var(--radius-full);
  text-transform: uppercase;
}

.tool-status-badge.live {
  background: var(--accent-subtle);
  color: var(--accent-primary);
  border: 1px solid var(--accent-border);
}

.tool-status-badge.coming {
  background: var(--bg-tertiary);
  color: var(--text-muted);
  border: 1px solid var(--border-color);
}

.tool-title {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  margin-bottom: 0.65rem;
  color: var(--text-primary);
}

.tool-desc {
  font-size: 0.925rem;
  color: var(--text-secondary);
  line-height: 1.55;
  margin-bottom: 1.5rem;
  flex-grow: 1;
}

.tool-tags {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  flex-wrap: wrap;
  margin-bottom: 1.5rem;
}

.tool-tag {
  font-size: 0.75rem;
  padding: 0.2rem 0.5rem;
  background: var(--bg-tertiary);
  color: var(--text-muted);
  border-radius: var(--radius-sm);
}

.tool-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 1rem;
  border-top: 1px solid var(--border-color);
}

.tool-meta-privacy {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.8rem;
  color: var(--accent-primary);
  font-weight: 500;
}

.tool-meta-privacy svg {
  width: 0.95rem;
  height: 0.95rem;
}

.tool-action-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--accent-primary);
  transition: gap var(--transition-fast);
}

.tool-card:hover .tool-action-btn {
  gap: 0.65rem;
}

.tool-action-btn svg {
  width: 1.1rem;
  height: 1.1rem;
}

/* ==========================================================================
   Trust / Value Banner
   ========================================================================== */

.trust-banner {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  padding: 2.5rem;
  margin-bottom: 5rem;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 2rem;
}

.trust-item {
  display: flex;
  gap: 1.25rem;
}

.trust-icon-box {
  width: 3rem;
  height: 3rem;
  border-radius: var(--radius-md);
  background: var(--accent-subtle);
  border: 1px solid var(--accent-border);
  color: var(--accent-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.trust-icon-box svg {
  width: 1.5rem;
  height: 1.5rem;
}

.trust-title {
  font-weight: 700;
  font-size: 1.05rem;
  margin-bottom: 0.35rem;
}

.trust-desc {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

/* ==========================================================================
   Tool App Interface Components (Dropzone, Controls, Preview)
   ========================================================================== */

.tool-workspace {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  padding: 2rem;
  box-shadow: var(--shadow-lg);
  margin-bottom: 3rem;
}

.dropzone {
  border: 2px dashed var(--border-hover);
  border-radius: var(--radius-lg);
  padding: 3.5rem 1.5rem;
  text-align: center;
  background: var(--bg-primary);
  cursor: pointer;
  transition: all var(--transition-normal);
  position: relative;
}

.dropzone:hover, .dropzone.dragover {
  border-color: var(--accent-primary);
  background: var(--accent-subtle);
  transform: scale(1.005);
}

.dropzone-icon {
  width: 4rem;
  height: 4rem;
  margin-inline: auto;
  margin-bottom: 1.25rem;
  color: var(--accent-primary);
}

.dropzone-title {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.dropzone-hint {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-bottom: 1.25rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.65rem 1.4rem;
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 0.925rem;
  cursor: pointer;
  transition: all var(--transition-fast);
  border: none;
}

.btn-primary {
  background: var(--accent-gradient);
  color: #FFFFFF;
  box-shadow: 0 4px 14px var(--accent-glow);
}

.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 20px var(--accent-glow);
}

.btn-secondary {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
}

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

.btn-sm {
  padding: 0.45rem 0.9rem;
  font-size: 0.825rem;
}

.btn-icon {
  width: 2.25rem;
  height: 2.25rem;
  padding: 0;
  border-radius: var(--radius-md);
}

/* Tool Settings Grid */
.settings-panel {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
  margin-top: 2rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border-color);
}

.setting-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.setting-label {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.segmented-control {
  display: flex;
  background: var(--bg-tertiary);
  padding: 0.25rem;
  border-radius: var(--radius-md);
  gap: 0.25rem;
}

.segmented-btn {
  flex: 1;
  background: transparent;
  border: none;
  padding: 0.45rem 0.5rem;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.segmented-btn.active {
  background: var(--bg-surface);
  color: var(--accent-primary);
  box-shadow: var(--shadow-sm);
}

/* Range Slider */
.slider-wrapper {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.range-input {
  flex-grow: 1;
  accent-color: var(--accent-primary);
  cursor: pointer;
}

.slider-val {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 600;
  padding: 0.2rem 0.5rem;
  background: var(--bg-tertiary);
  border-radius: var(--radius-sm);
}

/* Input text */
.text-input {
  width: 100%;
  padding: 0.55rem 0.85rem;
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-size: 0.9rem;
  outline: none;
  transition: border-color var(--transition-fast);
}

.text-input:focus {
  border-color: var(--border-focus);
}

/* Checkerboard Background for Transparency */
.checkerboard {
  background-image: 
    linear-gradient(45deg, #E2E8F0 25%, transparent 25%), 
    linear-gradient(-45deg, #E2E8F0 25%, transparent 25%), 
    linear-gradient(45deg, transparent 75%, #E2E8F0 75%), 
    linear-gradient(-45deg, transparent 75%, #E2E8F0 75%);
  background-size: 16px 16px;
  background-position: 0 0, 0 8px, 8px -8px, -8px 0px;
}

[data-theme="dark"] .checkerboard {
  background-image: 
    linear-gradient(45deg, #1E293B 25%, transparent 25%), 
    linear-gradient(-45deg, #1E293B 25%, transparent 25%), 
    linear-gradient(45deg, transparent 75%, #1E293B 75%), 
    linear-gradient(-45deg, transparent 75%, #1E293B 75%);
}

/* Interactive Preview Box */
.preview-container {
  margin-top: 2rem;
  padding: 1.5rem;
  background: var(--bg-primary);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 280px;
  position: relative;
}

.preview-img {
  max-height: 380px;
  max-width: 100%;
  object-fit: contain;
  border-radius: var(--radius-sm);
}

/* Ad Placement Slots (Polished Placeholders) */
.ad-slot-container {
  margin-block: 2.5rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.ad-label {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  text-transform: uppercase;
  color: var(--text-faint);
  letter-spacing: 0.05em;
  margin-bottom: 0.35rem;
}

.ad-slot {
  width: 100%;
  background: var(--bg-surface);
  border: 1px dashed var(--border-color);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-faint);
  font-size: 0.8rem;
  min-height: 100px;
}

.ad-slot.leaderboard {
  max-width: 728px;
  min-height: 90px;
}

.ad-slot.rectangle {
  max-width: 300px;
  min-height: 250px;
}

/* ==========================================================================
   SEO & Content Sections (FAQ, Guides, Comparison)
   ========================================================================== */

.seo-content-section {
  padding-block: 4rem 2rem;
  border-top: 1px solid var(--border-color);
}

.seo-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  padding: 2.5rem;
  margin-bottom: 2rem;
}

.seo-card h2 {
  font-family: var(--font-display);
  font-size: 1.65rem;
  font-weight: 700;
  margin-bottom: 1rem;
}

.seo-card h3 {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
  margin-top: 1.75rem;
  margin-bottom: 0.75rem;
}

.seo-card p {
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 1rem;
}

.seo-card ul, .seo-card ol {
  color: var(--text-secondary);
  padding-left: 1.5rem;
  margin-bottom: 1.25rem;
  line-height: 1.7;
}

.seo-card li {
  margin-bottom: 0.5rem;
}

/* FAQ Accordion */
.faq-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-top: 1.5rem;
}

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

.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.15rem 1.35rem;
  background: none;
  border: none;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1rem;
  text-align: left;
  cursor: pointer;
  color: var(--text-primary);
}

.faq-icon {
  width: 1.25rem;
  height: 1.25rem;
  color: var(--text-muted);
  transition: transform var(--transition-fast);
}

.faq-item.open .faq-icon {
  transform: rotate(180deg);
  color: var(--accent-primary);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s cubic-bezier(0, 1, 0, 1);
  padding-inline: 1.35rem;
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.6;
}

.faq-item.open .faq-answer {
  max-height: 500px;
  padding-bottom: 1.25rem;
  transition: max-height 0.3s cubic-bezier(1, 0, 1, 0);
}

/* Comparison Table */
.comparison-table-wrapper {
  overflow-x: auto;
  margin-block: 1.5rem;
}

.comparison-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.925rem;
}

.comparison-table th, .comparison-table td {
  padding: 0.9rem 1.2rem;
  border-bottom: 1px solid var(--border-color);
  text-align: left;
}

.comparison-table th {
  background: var(--bg-tertiary);
  font-weight: 700;
  font-family: var(--font-display);
  color: var(--text-primary);
}

/* ==========================================================================
   Footer
   ========================================================================== */

.site-footer {
  margin-top: auto;
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-color);
  padding-block: 3.5rem 2rem;
  font-size: 0.875rem;
  color: var(--text-muted);
}

.footer-top {
  display: grid;
  grid-template-columns: 2fr repeat(3, 1fr);
  gap: 3rem;
  margin-bottom: 3rem;
}

.footer-brand p {
  max-width: 320px;
  margin-top: 0.75rem;
  line-height: 1.6;
  color: var(--text-secondary);
}

.footer-col-title {
  font-family: var(--font-display);
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 1.25rem;
  font-size: 0.95rem;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.footer-link {
  color: var(--text-secondary);
  transition: color var(--transition-fast);
}

.footer-link:hover {
  color: var(--accent-primary);
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 2rem;
  border-top: 1px solid var(--border-color);
  flex-wrap: wrap;
  gap: 1rem;
}

/* ==========================================================================
   Responsive Breakpoints
   ========================================================================== */

@media (max-width: 900px) {
  .footer-top {
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
  }
}

@media (max-width: 640px) {
  .header-nav { display: none; }
  .footer-top { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .trust-banner { padding: 1.5rem; }
  .tool-workspace { padding: 1.25rem; }
  .dropzone { padding: 2.5rem 1rem; }
}