/* ==========================================================================
   ClaudeAIFree.in - Modern SaaS Design System
   Palette: Soft off-white (#F8FAFC), Deep Navy (#111827), Electric Violet (#7057F5), Cyan (#20C5D8)
   ========================================================================== */

:root {
  --bg-main: #F8FAFC;
  --bg-card: #FFFFFF;
  --bg-card-subtle: #F1F5F9;
  --bg-dark: #0F172A;
  --bg-dark-card: #1E293B;

  --text-main: #0F172A;
  --text-muted: #64748B;
  --text-light: #94A3B8;
  --text-inverse: #FFFFFF;

  --primary: #7057F5;
  --primary-hover: #5E43E8;
  --primary-subtle: rgba(112, 87, 245, 0.08);
  --primary-glow: rgba(112, 87, 245, 0.25);

  --secondary: #20C5D8;
  --secondary-hover: #15AFC2;
  --secondary-subtle: rgba(32, 197, 216, 0.1);

  --border: #E2E8F0;
  --border-focus: #7057F5;

  --success: #10B981;
  --error: #EF4444;
  --warning: #F59E0B;

  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 18px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.06), 0 2px 4px -2px rgba(0, 0, 0, 0.05);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.07), 0 4px 6px -4px rgba(0, 0, 0, 0.05);
  --shadow-glow: 0 0 20px rgba(112, 87, 245, 0.2);

  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;

  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 250ms cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
  font-family: var(--font-sans);
  background-color: var(--bg-main);
  color: var(--text-main);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  scroll-behavior: smooth;
}

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Accessibility */
.skip-link {
  position: absolute;
  top: -40px;
  left: 10px;
  background: var(--primary);
  color: white;
  padding: 8px 16px;
  z-index: 1000;
  border-radius: var(--radius-sm);
  text-decoration: none;
  font-weight: 600;
  transition: top var(--transition-fast);
}
.skip-link:focus {
  top: 10px;
}

:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

/* Layout Container */
.container {
  width: 100%;
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 1.25rem;
}

.container-narrow {
  max-width: 860px;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  color: var(--text-main);
  font-weight: 700;
  line-height: 1.25;
}

h1 { font-size: clamp(2rem, 4vw + 1rem, 3.25rem); letter-spacing: -0.03em; }
h2 { font-size: clamp(1.5rem, 2.5vw + 0.5rem, 2.25rem); letter-spacing: -0.02em; }
h3 { font-size: 1.35rem; }
h4 { font-size: 1.15rem; }

p {
  margin-bottom: 1rem;
  color: var(--text-muted);
}

a {
  color: var(--primary);
  text-decoration: none;
  transition: color var(--transition-fast);
}
a:hover {
  color: var(--primary-hover);
}

/* Badges & Tags */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.25rem 0.75rem;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border-radius: var(--radius-full);
}
.badge-primary {
  background: var(--primary-subtle);
  color: var(--primary);
  border: 1px solid rgba(112, 87, 245, 0.2);
}
.badge-secondary {
  background: var(--secondary-subtle);
  color: #0E94A3;
  border: 1px solid rgba(32, 197, 216, 0.25);
}
.badge-neutral {
  background: var(--bg-card-subtle);
  color: var(--text-muted);
  border: 1px solid var(--border);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.35rem;
  font-family: inherit;
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: var(--radius-md);
  cursor: pointer;
  border: 1px solid transparent;
  transition: all var(--transition-fast);
  text-decoration: none;
  white-space: nowrap;
}
.btn-primary {
  background: linear-gradient(135deg, var(--primary) 0%, #876DF7 100%);
  color: white;
  box-shadow: 0 4px 14px rgba(112, 87, 245, 0.3);
}
.btn-primary:hover:not(:disabled) {
  background: linear-gradient(135deg, var(--primary-hover) 0%, #7656EA 100%);
  box-shadow: 0 6px 18px rgba(112, 87, 245, 0.4);
  color: white;
  transform: translateY(-1px);
}
.btn-secondary {
  background: var(--bg-card);
  color: var(--text-main);
  border-color: var(--border);
}
.btn-secondary:hover:not(:disabled) {
  background: var(--bg-card-subtle);
  border-color: #CBD5E1;
  color: var(--primary);
}
.btn-sm {
  padding: 0.4rem 0.85rem;
  font-size: 0.85rem;
  border-radius: var(--radius-sm);
}
.btn-lg {
  padding: 0.9rem 1.75rem;
  font-size: 1.05rem;
  border-radius: var(--radius-lg);
}
.btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none !important;
  box-shadow: none !important;
}

/* Navigation Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(248, 250, 252, 0.9);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.nav-wrapper {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 4.5rem;
}
.brand-link {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--text-main);
  letter-spacing: -0.02em;
}
.brand-logo {
  width: 36px;
  height: 36px;
  border-radius: 9px;
  box-shadow: 0 2px 8px rgba(112, 87, 245, 0.25);
}
.brand-dot {
  color: var(--primary);
}

.nav-menu {
  display: flex;
  align-items: center;
  list-style: none;
  gap: 1.5rem;
}
.nav-link {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-muted);
  padding: 0.4rem 0.6rem;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}
.nav-link:hover, .nav-link.active {
  color: var(--primary);
  background: var(--primary-subtle);
}

/* Mobile Nav Toggle */
.mobile-nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--border);
  padding: 0.5rem;
  border-radius: var(--radius-md);
  cursor: pointer;
  color: var(--text-main);
}

/* Dropdown Menu */
.nav-item-dropdown {
  position: relative;
}
.dropdown-menu {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 230px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  padding: 0.5rem;
  list-style: none;
  z-index: 110;
}
.nav-item-dropdown:hover .dropdown-menu,
.nav-item-dropdown:focus-within .dropdown-menu {
  display: block;
}
.dropdown-link {
  display: block;
  padding: 0.55rem 0.85rem;
  font-size: 0.9rem;
  color: var(--text-muted);
  border-radius: var(--radius-sm);
}
.dropdown-link:hover {
  background: var(--primary-subtle);
  color: var(--primary);
}

/* Hero Section */
.hero-section {
  padding: 3rem 0 2rem;
  text-align: center;
}
.hero-header {
  max-width: 780px;
  margin: 0 auto 2.5rem;
}
.hero-headline {
  margin: 1rem 0 0.85rem;
}
.hero-subhead {
  font-size: 1.15rem;
  color: var(--text-muted);
  max-width: 650px;
  margin: 0 auto 1.5rem;
}

/* Creative Workspace Widget */
.workspace-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  text-align: left;
  margin-bottom: 3.5rem;
}

/* Workspace Tabs */
.workspace-tabs {
  display: flex;
  overflow-x: auto;
  background: var(--bg-card-subtle);
  border-bottom: 1px solid var(--border);
  padding: 0.35rem 0.5rem 0;
  scrollbar-width: thin;
  gap: 0.25rem;
}
.tab-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.15rem;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-muted);
  background: transparent;
  border: none;
  border-bottom: 2px solid transparent;
  border-top-left-radius: var(--radius-md);
  border-top-right-radius: var(--radius-md);
  cursor: pointer;
  white-space: nowrap;
  transition: all var(--transition-fast);
}
.tab-btn:hover {
  color: var(--text-main);
  background: rgba(255, 255, 255, 0.5);
}
.tab-btn.active {
  color: var(--primary);
  background: var(--bg-card);
  border-bottom-color: var(--primary);
  box-shadow: 0 -2px 6px rgba(0, 0, 0, 0.02);
}

/* Workspace Grid */
.workspace-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  min-height: 520px;
}

.workspace-form-pane {
  padding: 2rem;
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 1.5rem;
}

.workspace-preview-pane {
  padding: 2rem;
  background: #FAFBFD;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

/* Input Fields */
.input-label {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: 0.4rem;
}
.char-counter {
  font-size: 0.75rem;
  font-weight: 400;
  color: var(--text-light);
}

.prompt-textarea {
  width: 100%;
  min-height: 120px;
  padding: 0.9rem;
  font-family: inherit;
  font-size: 0.95rem;
  color: var(--text-main);
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  resize: vertical;
  line-height: 1.5;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}
.prompt-textarea:focus {
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px var(--primary-subtle);
  outline: none;
}

/* Prompt Controls Bar */
.prompt-actions-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 0.4rem;
  font-size: 0.8rem;
}
.quick-action-link {
  background: none;
  border: none;
  color: var(--primary);
  cursor: pointer;
  font-size: 0.82rem;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
}
.quick-action-link:hover {
  text-decoration: underline;
}

/* Settings Controls */
.settings-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.select-custom {
  width: 100%;
  padding: 0.65rem 0.85rem;
  font-family: inherit;
  font-size: 0.9rem;
  color: var(--text-main);
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  cursor: pointer;
}
.select-custom:focus {
  border-color: var(--primary);
  outline: none;
}

/* Aspect Ratio Selector Pills */
.ratio-pills {
  display: flex;
  gap: 0.4rem;
}
.ratio-pill-btn {
  flex: 1;
  padding: 0.5rem 0.25rem;
  font-size: 0.8rem;
  font-weight: 600;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--bg-card);
  color: var(--text-muted);
  cursor: pointer;
  text-align: center;
  transition: all var(--transition-fast);
}
.ratio-pill-btn:hover {
  border-color: #CBD5E1;
  color: var(--text-main);
}
.ratio-pill-btn.active {
  background: var(--primary-subtle);
  border-color: var(--primary);
  color: var(--primary);
}

/* Drag-and-Drop Image Upload Box */
.upload-dropzone {
  border: 2px dashed var(--border);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  text-align: center;
  background: var(--bg-card-subtle);
  cursor: pointer;
  transition: all var(--transition-fast);
  position: relative;
}
.upload-dropzone:hover, .upload-dropzone.dragover {
  border-color: var(--primary);
  background: var(--primary-subtle);
}
.upload-dropzone input[type="file"] {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  cursor: pointer;
}
.upload-icon {
  font-size: 2rem;
  color: var(--primary);
  margin-bottom: 0.4rem;
}
.upload-preview-thumb {
  max-width: 100%;
  max-height: 140px;
  border-radius: var(--radius-sm);
  object-fit: cover;
  margin-top: 0.5rem;
  border: 1px solid var(--border);
}

/* Generation Processing Overlay */
.processing-container {
  display: none;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  width: 100%;
  height: 100%;
  padding: 2rem;
}
.processing-container.active {
  display: flex;
}

/* Animated Ring / Waveform */
.pulse-spinner {
  position: relative;
  width: 80px;
  height: 80px;
  margin-bottom: 1.5rem;
}
.pulse-spinner::before, .pulse-spinner::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: 50%;
  border: 3px solid transparent;
}
.pulse-spinner::before {
  border-top-color: var(--primary);
  border-right-color: var(--primary);
  animation: spin 1s linear infinite;
}
.pulse-spinner::after {
  border-bottom-color: var(--secondary);
  border-left-color: var(--secondary);
  animation: spin 1.5s linear infinite reverse;
}
@keyframes spin {
  to { transform: rotate(360deg); }
}

.elapsed-timer {
  font-family: var(--font-mono);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 0.5rem;
}
.status-message {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-main);
  min-height: 1.5rem;
  margin-bottom: 0.25rem;
}
.status-sub {
  font-size: 0.8rem;
  color: var(--text-muted);
  max-width: 320px;
}

/* Idle Preview State */
.preview-idle-state {
  text-align: center;
  padding: 2rem;
}
.preview-idle-icon {
  width: 64px;
  height: 64px;
  margin-bottom: 1rem;
  opacity: 0.7;
}

/* Result Presentation In Workspace */
.result-card-embed {
  display: none;
  flex-direction: column;
  align-items: center;
  width: 100%;
  height: 100%;
}
.result-card-embed.active {
  display: flex;
}
.result-media-view {
  max-width: 100%;
  max-height: 380px;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  object-fit: contain;
  margin-bottom: 1rem;
  background: #000;
}
.result-actions-row {
  display: flex;
  gap: 0.75rem;
  width: 100%;
  justify-content: center;
  flex-wrap: wrap;
}

/* Prompt Inspiration Quick Bar */
.inspiration-bar {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  overflow-x: auto;
  padding: 0.75rem 1.25rem;
  background: var(--bg-card-subtle);
  border-top: 1px solid var(--border);
  font-size: 0.85rem;
}
.inspiration-tag {
  background: var(--bg-card);
  border: 1px solid var(--border);
  padding: 0.3rem 0.75rem;
  border-radius: var(--radius-full);
  color: var(--text-muted);
  cursor: pointer;
  white-space: nowrap;
  transition: all var(--transition-fast);
}
.inspiration-tag:hover {
  border-color: var(--primary);
  color: var(--primary);
}

/* Feature Grid */
.feature-section {
  padding: 4rem 0;
}
.section-header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 3rem;
}
.section-title {
  margin: 0.5rem 0 1rem;
}
.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}
.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2rem;
}
.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.25rem;
}

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2rem;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}
.feature-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
  border-color: #CBD5E1;
}
.feature-icon-wrapper {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background: var(--primary-subtle);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 1.25rem;
}

/* Gallery Section */
.gallery-section {
  padding: 4rem 0;
  background: #FAFBFD;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.filter-tabs {
  display: flex;
  gap: 0.5rem;
  overflow-x: auto;
  padding-bottom: 1rem;
  margin-bottom: 2rem;
  scrollbar-width: thin;
}
.filter-pill {
  padding: 0.5rem 1rem;
  font-size: 0.85rem;
  font-weight: 600;
  border-radius: var(--radius-full);
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--text-muted);
  cursor: pointer;
  white-space: nowrap;
  transition: all var(--transition-fast);
}
.filter-pill:hover, .filter-pill.active {
  background: var(--primary);
  color: white;
  border-color: var(--primary);
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.5rem;
}
.gallery-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
  display: flex;
  flex-direction: column;
}
.gallery-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}
.gallery-thumb-wrap {
  position: relative;
  width: 100%;
  aspect-ratio: 1 / 1;
  overflow: hidden;
  background: #E2E8F0;
}
.gallery-thumb {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-normal);
}
.gallery-card:hover .gallery-thumb {
  transform: scale(1.03);
}
.gallery-card-body {
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  flex: 1;
  justify-content: space-between;
}
.gallery-prompt {
  font-size: 0.85rem;
  color: var(--text-main);
  line-height: 1.5;
  margin-bottom: 1rem;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* Educational SEO Content Sections */
.article-section {
  padding: 4rem 0;
}
.article-body {
  font-size: 1.05rem;
  line-height: 1.8;
  color: #334155;
}
.article-body h2 {
  margin: 2.5rem 0 1rem;
}
.article-body h3 {
  margin: 2rem 0 0.85rem;
}
.article-body p {
  margin-bottom: 1.25rem;
}
.article-body ul, .article-body ol {
  margin: 1rem 0 1.5rem 1.5rem;
}
.article-body li {
  margin-bottom: 0.5rem;
}
.article-callout {
  background: #F0F4FF;
  border-left: 4px solid var(--primary);
  padding: 1.25rem 1.5rem;
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  margin: 1.5rem 0;
}

/* FAQ Accordion */
.faq-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  max-width: 800px;
  margin: 0 auto;
}
.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
}
.faq-question {
  width: 100%;
  padding: 1.25rem 1.5rem;
  background: none;
  border: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  text-align: left;
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text-main);
  cursor: pointer;
}
.faq-icon {
  font-size: 1.25rem;
  transition: transform var(--transition-fast);
}
.faq-item.open .faq-icon {
  transform: rotate(45deg);
}
.faq-answer {
  display: none;
  padding: 0 1.5rem 1.25rem;
  font-size: 0.95rem;
  color: var(--text-muted);
}
.faq-item.open .faq-answer {
  display: block;
}

/* Ad Placements (Compliant with Google AdSense) */
.ad-slot-wrapper {
  margin: 3rem auto;
  text-align: center;
  width: 100%;
}
.ad-slot-label {
  font-size: 0.65rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-light);
  margin-bottom: 0.35rem;
}
.ad-slot-container {
  min-height: 100px;
  background: #F1F5F9;
  border: 1px dashed #CBD5E1;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-light);
  font-size: 0.85rem;
  padding: 1rem;
  margin: 0 auto;
  max-width: 970px;
}

/* Toast Notification */
.toast-notice {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  background: var(--bg-dark);
  color: white;
  padding: 0.85rem 1.35rem;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  font-size: 0.9rem;
  z-index: 1000;
  opacity: 0;
  pointer-events: none;
  transform: translateY(10px);
  transition: all var(--transition-fast);
}
.toast-notice.show {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}

/* Footer */
.site-footer {
  background: var(--bg-dark);
  color: #94A3B8;
  padding: 4.5rem 0 2rem;
  margin-top: auto;
  border-top: 1px solid #1E293B;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr 1fr;
  gap: 2.5rem;
  margin-bottom: 3.5rem;
}
.footer-brand h3 {
  color: white;
  margin-bottom: 0.75rem;
}
.footer-col h4 {
  color: white;
  font-size: 0.95rem;
  margin-bottom: 1.25rem;
}
.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}
.footer-link {
  color: #94A3B8;
  font-size: 0.88rem;
  transition: color var(--transition-fast);
}
.footer-link:hover {
  color: white;
}
.footer-bottom {
  border-top: 1px solid #1E293B;
  padding-top: 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.82rem;
  flex-wrap: wrap;
  gap: 1rem;
}
.footer-disclaimer-note {
  font-size: 0.78rem;
  line-height: 1.5;
  color: #64748B;
  margin-top: 0.75rem;
}

/* Responsive Breakpoints */
@media (max-width: 1024px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr 1fr;
  }
  .grid-3 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .nav-menu {
    display: none;
    position: absolute;
    top: 4.5rem;
    left: 0;
    width: 100%;
    background: var(--bg-card);
    flex-direction: column;
    padding: 1.5rem;
    box-shadow: var(--shadow-lg);
    border-bottom: 1px solid var(--border);
  }
  .nav-menu.open {
    display: flex;
  }
  .mobile-nav-toggle {
    display: block;
  }
  .workspace-grid {
    grid-template-columns: 1fr;
  }
  .workspace-form-pane {
    border-right: none;
    border-bottom: 1px solid var(--border);
  }
  .grid-2, .grid-3, .grid-4 {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .footer-grid {
    grid-template-columns: 1fr;
  }
  .settings-grid {
    grid-template-columns: 1fr;
  }
}

/* ==========================================================================
   AI Settings Modal
   ========================================================================== */
.api-modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.65);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  opacity: 0;
  visibility: hidden;
  transition: opacity 200ms ease, visibility 200ms ease;
  padding: 1rem;
}
.api-modal-backdrop.active {
  opacity: 1;
  visibility: visible;
}
.api-modal-dialog {
  background: #FFFFFF;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  width: 100%;
  max-width: 560px;
  max-height: 90vh;
  overflow-y: auto;
  transform: translateY(12px) scale(0.98);
  transition: transform 200ms ease;
}
.api-modal-backdrop.active .api-modal-dialog {
  transform: translateY(0) scale(1);
}
.api-modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.25rem 1.5rem;
  border-bottom: 1px solid var(--border);
}
.api-modal-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-main);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.api-modal-close {
  background: transparent;
  border: none;
  font-size: 1.5rem;
  line-height: 1;
  color: var(--text-muted);
  cursor: pointer;
  padding: 0.25rem 0.5rem;
  border-radius: var(--radius-sm);
  transition: color var(--transition-fast), background var(--transition-fast);
}
.api-modal-close:hover {
  color: var(--text-main);
  background: var(--bg-card-subtle);
}
.api-modal-body {
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}
.api-modal-footer {
  display: flex;
  justify-content: flex-end;
  align-items: center;
  gap: 0.75rem;
  padding: 1rem 1.5rem;
  border-top: 1px solid var(--border);
  background: var(--bg-card-subtle);
  border-bottom-left-radius: var(--radius-lg);
  border-bottom-right-radius: var(--radius-lg);
}
.api-field-group {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}
.api-field-group label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-main);
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.api-field-group .helper-text {
  font-size: 0.78rem;
  color: var(--text-muted);
  line-height: 1.4;
}
.api-field-group .helper-text a {
  color: var(--primary);
  text-decoration: underline;
  font-weight: 500;
}
.api-key-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  padding: 0.15rem 0.5rem;
  border-radius: var(--radius-full);
  font-size: 0.7rem;
  font-weight: 600;
  background: #E0E7FF;
  color: #3730A3;
}