/* QuickToolsIn - Premium Glassmorphism Multi-Tools */
:root {
  --bg-primary: #0a0e17;
  --bg-secondary: #111827;
  --bg-card: rgba(255, 255, 255, 0.06);
  --bg-glass: rgba(255, 255, 255, 0.08);
  --border-glass: rgba(255, 255, 255, 0.12);
  --text-primary: #f1f5f9;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --accent-1: #6366f1;
  --accent-2: #8b5cf6;
  --accent-3: #ec4899;
  --accent-4: #06b6d4;
  --gradient-main: linear-gradient(135deg, #6366f1 0%, #8b5cf6 50%, #ec4899 100%);
  --gradient-soft: linear-gradient(135deg, rgba(99,102,241,0.2), rgba(236,72,153,0.2));
  --shadow-glow: 0 0 40px rgba(99, 102, 241, 0.25);
  --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.3);
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-xl: 32px;
  --transition: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  --nav-height: 72px;
  --font-sans: 'Segoe UI', system-ui, -apple-system, sans-serif;
}

[data-theme="light"] {
  --bg-primary: #f8fafc;
  --bg-secondary: #ffffff;
  --bg-card: rgba(255, 255, 255, 0.85);
  --bg-glass: rgba(255, 255, 255, 0.75);
  --border-glass: rgba(99, 102, 241, 0.15);
  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #64748b;
  --shadow-glow: 0 0 40px rgba(99, 102, 241, 0.15);
  --shadow-card: 0 8px 32px rgba(99, 102, 241, 0.1);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-sans);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  transition: background var(--transition), color var(--transition);
  min-height: 100vh;
}

/* Animated gradient background */
.bg-animated {
  position: fixed;
  inset: 0;
  z-index: -2;
  background: var(--bg-primary);
  overflow: hidden;
}
.bg-animated::before {
  content: '';
  position: absolute;
  width: 150%;
  height: 150%;
  top: -25%;
  left: -25%;
  background: 
    radial-gradient(ellipse at 20% 20%, rgba(99,102,241,0.15) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 80%, rgba(236,72,153,0.12) 0%, transparent 50%),
    radial-gradient(ellipse at 50% 50%, rgba(6,182,212,0.08) 0%, transparent 60%);
  animation: bgShift 20s ease-in-out infinite alternate;
}
@keyframes bgShift {
  0% { transform: translate(0, 0) rotate(0deg); }
  100% { transform: translate(-5%, -5%) rotate(3deg); }
}

.container { width: min(1200px, 92%); margin: 0 auto; }
.container-wide { width: min(1400px, 94%); margin: 0 auto; }

/* Navbar */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--nav-height);
  display: flex;
  align-items: center;
  transition: var(--transition);
  background: transparent;
}
.navbar.scrolled {
  background: var(--bg-glass);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-glass);
  box-shadow: var(--shadow-card);
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: min(1400px, 94%);
  margin: 0 auto;
  padding: 0 3%;
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--text-primary);
  font-weight: 700;
  font-size: 1.35rem;
}
.logo-icon {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  background: var(--gradient-main);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 1.1rem;
  box-shadow: var(--shadow-glow);
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 8px;
  list-style: none;
}
.nav-links a {
  color: var(--text-secondary);
  text-decoration: none;
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  font-weight: 500;
  transition: var(--transition);
}
.nav-links a:hover, .nav-links a.active {
  color: var(--text-primary);
  background: var(--bg-glass);
}
.nav-actions { display: flex; align-items: center; gap: 12px; }

.theme-toggle {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  border: 1px solid var(--border-glass);
  background: var(--bg-glass);
  color: var(--text-primary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
  backdrop-filter: blur(10px);
}
.theme-toggle:hover {
  border-color: var(--accent-1);
  box-shadow: var(--shadow-glow);
  transform: scale(1.05);
}

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}
.hamburger span {
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: var(--transition);
}
.hamburger.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.hamburger.active span:nth-child(2) { opacity: 0; }
.hamburger.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* Hero */
.hero {
  padding: calc(var(--nav-height) + 60px) 0 80px;
  position: relative;
  overflow: hidden;
}
.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}
.hero-content h1 {
  font-size: clamp(2rem, 5vw, 3.25rem);
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 20px;
  background: var(--gradient-main);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-content p {
  color: var(--text-secondary);
  font-size: 1.1rem;
  margin-bottom: 28px;
  max-width: 520px;
}
.hero-btns { display: flex; flex-wrap: wrap; gap: 14px; margin-bottom: 32px; }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 0.95rem;
  text-decoration: none;
  border: none;
  cursor: pointer;
  transition: var(--transition);
}
.btn-primary {
  background: var(--gradient-main);
  color: #fff;
  box-shadow: var(--shadow-glow);
}
.btn-primary:hover { transform: translateY(-3px) scale(1.02); box-shadow: 0 0 50px rgba(99,102,241,0.4); }
.btn-outline {
  background: var(--bg-glass);
  color: var(--text-primary);
  border: 1px solid var(--border-glass);
  backdrop-filter: blur(10px);
}
.btn-outline:hover { border-color: var(--accent-1); transform: translateY(-2px); }
.btn-sm { padding: 10px 20px; font-size: 0.875rem; }

/* Rotating sphere */
.hero-visual { position: relative; display: flex; justify-content: center; align-items: center; min-height: 380px; }
.sphere-container {
  position: relative;
  width: 320px;
  height: 320px;
}
.sphere {
  width: 100%;
  height: 100%;
  border-radius: 50%;
  background: conic-gradient(from 0deg, #6366f1, #8b5cf6, #ec4899, #06b6d4, #6366f1);
  animation: rotateSphere 12s linear infinite;
  filter: blur(0px);
  box-shadow: 
    0 0 80px rgba(99,102,241,0.5),
    0 0 120px rgba(236,72,153,0.3),
    inset 0 0 60px rgba(255,255,255,0.1);
}
.sphere-inner {
  position: absolute;
  inset: 20%;
  border-radius: 50%;
  background: var(--bg-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3rem;
  color: var(--accent-1);
}
@keyframes rotateSphere { to { transform: rotate(360deg); } }
.sphere-glow {
  position: absolute;
  inset: -20%;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(99,102,241,0.3) 0%, transparent 70%);
  animation: pulseGlow 4s ease-in-out infinite;
}
@keyframes pulseGlow {
  0%, 100% { opacity: 0.6; transform: scale(1); }
  50% { opacity: 1; transform: scale(1.1); }
}

/* Search */
.search-box {
  position: relative;
  max-width: 560px;
}
.search-box input {
  width: 100%;
  padding: 16px 20px 16px 50px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-glass);
  background: var(--bg-glass);
  backdrop-filter: blur(16px);
  color: var(--text-primary);
  font-size: 1rem;
  transition: var(--transition);
}
.search-box input:focus {
  outline: none;
  border-color: var(--accent-1);
  box-shadow: var(--shadow-glow);
}
.search-box i {
  position: absolute;
  left: 20px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
}
.search-results {
  position: absolute;
  top: calc(100% + 8px);
  left: 0;
  right: 0;
  background: var(--bg-secondary);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-md);
  max-height: 280px;
  overflow-y: auto;
  display: none;
  z-index: 100;
  box-shadow: var(--shadow-card);
}
.search-results.active { display: block; }
.search-results a {
  display: block;
  padding: 12px 18px;
  color: var(--text-primary);
  text-decoration: none;
  border-bottom: 1px solid var(--border-glass);
  transition: var(--transition);
}
.search-results a:hover { background: var(--bg-glass); }

/* Sections */
section { padding: 70px 0; }
.section-header {
  text-align: center;
  margin-bottom: 48px;
}
.section-header h2 {
  font-size: clamp(1.75rem, 4vw, 2.25rem);
  font-weight: 700;
  margin-bottom: 12px;
}
.section-header p { color: var(--text-secondary); max-width: 600px; margin: 0 auto; }
.section-tag {
  display: inline-block;
  padding: 6px 16px;
  border-radius: 50px;
  background: var(--gradient-soft);
  color: var(--accent-1);
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 12px;
}

/* Glass cards */
.glass-card {
  background: var(--bg-glass);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
  padding: 28px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}
.glass-card::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  padding: 1px;
  background: linear-gradient(135deg, transparent, rgba(99,102,241,0.3), transparent);
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  opacity: 0;
  transition: var(--transition);
  pointer-events: none;
}
.glass-card:hover::before { opacity: 1; }
.glass-card:hover {
  transform: translateY(-8px) scale(1.02);
  box-shadow: var(--shadow-glow), var(--shadow-card);
}
/* Tool workspace: no hover lift, keep clicks working */
.tool-workspace.glass-card:hover {
  transform: none;
}
.tool-workspace > * {
  position: relative;
  z-index: 1;
}
.btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
  transform: none !important;
  box-shadow: none !important;
}
.btn:not(:disabled) {
  cursor: pointer;
}

/* How to use section */
.how-to-section {
  margin-top: 28px;
  padding: 28px 32px;
}
.how-to-section h2 {
  font-size: 1.25rem;
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.how-to-section h2 i {
  color: var(--accent-1);
}
.how-to-steps {
  list-style: none;
  counter-reset: step;
  margin-bottom: 20px;
}
.how-to-steps li {
  counter-increment: step;
  position: relative;
  padding-left: 44px;
  margin-bottom: 14px;
  color: var(--text-secondary);
  line-height: 1.55;
}
.how-to-steps li::before {
  content: counter(step);
  position: absolute;
  left: 0;
  top: 0;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--gradient-main);
  color: #fff;
  font-size: 0.8rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
}
.how-to-tips {
  padding: 16px 18px;
  border-radius: var(--radius-md);
  background: var(--gradient-soft);
  border: 1px solid var(--border-glass);
}
.how-to-tips strong {
  display: block;
  margin-bottom: 8px;
  color: var(--text-primary);
}
.how-to-tips p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin: 0;
}
.file-selected {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 16px;
  margin-top: 12px;
  border-radius: var(--radius-sm);
  background: var(--gradient-soft);
  color: var(--text-primary);
  font-size: 0.9rem;
}

/* Text to PDF editor */
.text-editor-wrap {
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--bg-glass);
}
.editor-toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  padding: 10px 12px;
  border-bottom: 1px solid var(--border-glass);
  background: var(--bg-card);
}
.editor-toolbar button {
  width: 38px;
  height: 38px;
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-sm);
  background: var(--bg-glass);
  color: var(--text-primary);
  cursor: pointer;
  transition: var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
}
.editor-toolbar button:hover,
.editor-toolbar button.active {
  background: var(--gradient-main);
  color: #fff;
  border-color: transparent;
}
.toolbar-divider {
  width: 1px;
  height: 28px;
  background: var(--border-glass);
  margin: 0 4px;
}
.editor-toolbar label {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-left: 4px;
}
.editor-toolbar select {
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-glass);
  background: var(--bg-glass);
  color: var(--text-primary);
  font-size: 0.9rem;
  cursor: pointer;
}
.text-editor {
  min-height: 220px;
  max-height: 400px;
  overflow-y: auto;
  padding: 18px 20px;
  font-size: 14px;
  line-height: 1.6;
  color: var(--text-primary);
  outline: none;
}
.text-editor:empty::before {
  content: attr(data-placeholder);
  color: var(--text-muted);
  pointer-events: none;
}
.text-editor p { margin: 0 0 10px; }
.text-editor b, .text-editor strong { font-weight: 700; }
.text-editor i, .text-editor em { font-style: italic; }

/* Tool cards grid */
.tools-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 24px;
}
.tool-card {
  text-decoration: none;
  color: inherit;
  display: block;
}
.tool-card .card-icon {
  width: 56px;
  height: 56px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  margin-bottom: 16px;
  background: var(--gradient-soft);
  color: var(--accent-1);
  transition: var(--transition);
}
.tool-card:hover .card-icon {
  background: var(--gradient-main);
  color: #fff;
  transform: scale(1.1) rotate(5deg);
}
.tool-card h3 { font-size: 1.1rem; margin-bottom: 8px; }
.tool-card p { color: var(--text-secondary); font-size: 0.9rem; }
.tool-card .card-badge {
  position: absolute;
  top: 16px;
  right: 16px;
  font-size: 0.7rem;
  padding: 4px 10px;
  border-radius: 50px;
  background: var(--gradient-main);
  color: #fff;
  font-weight: 600;
}

.category-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: center;
  margin-bottom: 36px;
}
.category-tab {
  padding: 10px 22px;
  border-radius: 50px;
  border: 1px solid var(--border-glass);
  background: var(--bg-glass);
  color: var(--text-secondary);
  cursor: pointer;
  font-weight: 500;
  transition: var(--transition);
}
.category-tab:hover, .category-tab.active {
  background: var(--gradient-main);
  color: #fff;
  border-color: transparent;
}

/* Features */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 24px;
}
.feature-item {
  text-align: center;
  padding: 36px 24px;
}
.feature-item i {
  font-size: 2.5rem;
  background: var(--gradient-main);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 16px;
}
.feature-item h3 { margin-bottom: 10px; }
.feature-item p { color: var(--text-secondary); font-size: 0.95rem; }

/* FAQ */
.faq-list { max-width: 800px; margin: 0 auto; }
.faq-item {
  margin-bottom: 12px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-glass);
  background: var(--bg-glass);
  overflow: hidden;
}
.faq-question {
  width: 100%;
  padding: 20px 24px;
  background: none;
  border: none;
  color: var(--text-primary);
  font-size: 1rem;
  font-weight: 600;
  text-align: left;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: var(--transition);
}
.faq-question i { transition: var(--transition); }
.faq-item.active .faq-question i { transform: rotate(180deg); }
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease;
}
.faq-answer-inner {
  padding: 0 24px 20px;
  color: var(--text-secondary);
}
.faq-item.active .faq-answer { max-height: 300px; }

/* Testimonials */
.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 24px;
}
.testimonial-card .stars { color: #fbbf24; margin-bottom: 12px; }
.testimonial-card p { color: var(--text-secondary); font-style: italic; margin-bottom: 16px; }
.testimonial-card .author { display: flex; align-items: center; gap: 12px; }
.testimonial-card .avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--gradient-main);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-weight: 700;
}

/* Newsletter */
.newsletter-box {
  max-width: 600px;
  margin: 0 auto;
  text-align: center;
  padding: 48px;
}
.newsletter-form {
  display: flex;
  gap: 10px;
  margin-top: 24px;
  flex-wrap: wrap;
  justify-content: center;
}
.newsletter-form input {
  flex: 1;
  min-width: 220px;
  padding: 14px 20px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-glass);
  background: var(--bg-glass);
  color: var(--text-primary);
}
.newsletter-form input:focus { outline: none; border-color: var(--accent-1); }

/* Footer */
.footer {
  background: var(--bg-glass);
  border-top: 1px solid var(--border-glass);
  padding: 60px 0 24px;
  margin-top: 40px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr repeat(3, 1fr);
  gap: 40px;
  margin-bottom: 40px;
}
.footer h4 { margin-bottom: 16px; font-size: 1rem; }
.footer ul { list-style: none; }
.footer ul li { margin-bottom: 8px; }
.footer a {
  color: var(--text-secondary);
  text-decoration: none;
  transition: var(--transition);
  font-size: 0.9rem;
}
.footer a:hover { color: var(--accent-1); }
.footer-bottom {
  padding-top: 24px;
  border-top: 1px solid var(--border-glass);
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  color: var(--text-muted);
  font-size: 0.875rem;
}
.ad-slot {
  min-height: 90px;
  background: var(--bg-glass);
  border: 1px dashed var(--border-glass);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  font-size: 0.8rem;
  margin: 24px 0;
}

/* Tool page layout */
.tool-page { padding: calc(var(--nav-height) + 40px) 0 60px; }
.tool-header { margin-bottom: 32px; }
.tool-header h1 { font-size: clamp(1.5rem, 4vw, 2rem); margin-bottom: 8px; }
.tool-header p { color: var(--text-secondary); }
.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 0.875rem;
  color: var(--text-muted);
  margin-bottom: 16px;
}
.breadcrumb a { color: var(--accent-1); text-decoration: none; }

.tool-workspace {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}
@media (min-width: 900px) {
  .tool-workspace.split { grid-template-columns: 1fr 1fr; }
}

.tool-panel { min-height: 200px; }

/* Upload zone */
.upload-zone {
  border: 2px dashed var(--border-glass);
  border-radius: var(--radius-lg);
  padding: 48px 24px;
  text-align: center;
  cursor: pointer;
  transition: var(--transition);
  background: var(--bg-glass);
}
.upload-zone:hover, .upload-zone.dragover {
  border-color: var(--accent-1);
  background: var(--gradient-soft);
  box-shadow: var(--shadow-glow);
}
.upload-zone i { font-size: 3rem; color: var(--accent-1); margin-bottom: 16px; }
.upload-zone p { color: var(--text-secondary); margin-bottom: 8px; }
.upload-zone span { font-size: 0.85rem; color: var(--text-muted); }
.upload-zone input { display: none; }

/* Textarea & inputs */
.tool-textarea, .tool-input {
  width: 100%;
  padding: 16px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-glass);
  background: var(--bg-glass);
  color: var(--text-primary);
  font-family: inherit;
  font-size: 0.95rem;
  resize: vertical;
  transition: var(--transition);
}
.tool-textarea { min-height: 200px; }
.tool-textarea:focus, .tool-input:focus {
  outline: none;
  border-color: var(--accent-1);
  box-shadow: 0 0 0 3px rgba(99,102,241,0.2);
}

.tool-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 20px;
}

.stats-row {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-top: 20px;
}
.stat-box {
  flex: 1;
  min-width: 120px;
  padding: 16px;
  border-radius: var(--radius-md);
  background: var(--gradient-soft);
  text-align: center;
}
.stat-box .num { font-size: 1.75rem; font-weight: 700; color: var(--accent-1); }
.stat-box .label { font-size: 0.85rem; color: var(--text-secondary); }

/* Progress */
.progress-wrap {
  margin: 20px 0;
  display: none;
}
.progress-wrap.active { display: block; }
.progress-bar {
  height: 8px;
  background: var(--bg-glass);
  border-radius: 50px;
  overflow: hidden;
}
.progress-fill {
  height: 100%;
  background: var(--gradient-main);
  border-radius: 50px;
  width: 0%;
  transition: width 0.3s ease;
}
.progress-text { font-size: 0.85rem; color: var(--text-muted); margin-top: 8px; }

/* Preview */
.preview-area {
  margin-top: 20px;
  display: none;
}
.preview-area.active { display: block; }
.preview-area img {
  max-width: 100%;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-glass);
}
.preview-list { display: flex; flex-wrap: wrap; gap: 12px; }
.preview-item {
  padding: 8px 14px;
  background: var(--bg-glass);
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
  display: flex;
  align-items: center;
  gap: 8px;
}

/* Popup */
.popup-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.6);
  backdrop-filter: blur(4px);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
}
.popup-overlay.active { opacity: 1; visibility: visible; }
.popup-box {
  background: var(--bg-secondary);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
  padding: 40px;
  text-align: center;
  max-width: 400px;
  transform: scale(0.9);
  transition: var(--transition);
  box-shadow: var(--shadow-glow);
}
.popup-overlay.active .popup-box { transform: scale(1); }
.popup-box i.success { font-size: 3rem; color: #22c55e; margin-bottom: 16px; }
.popup-box i.error { font-size: 3rem; color: #ef4444; margin-bottom: 16px; }
.popup-box h3 { margin-bottom: 8px; }
.popup-box p { color: var(--text-secondary); margin-bottom: 20px; }

/* Page content */
.page-hero {
  padding: calc(var(--nav-height) + 50px) 0 50px;
  text-align: center;
}
.page-hero h1 {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  margin-bottom: 12px;
}
.page-content {
  padding: 40px 0 80px;
  max-width: 800px;
  margin: 0 auto;
}
.page-content h2 { margin: 32px 0 12px; font-size: 1.35rem; }
.page-content p, .page-content li { color: var(--text-secondary); margin-bottom: 12px; }
.page-content ul { padding-left: 24px; margin-bottom: 16px; }

.contact-form .form-group { margin-bottom: 20px; }
.contact-form label {
  display: block;
  margin-bottom: 8px;
  font-weight: 500;
  font-size: 0.9rem;
}
.contact-form input, .contact-form textarea {
  width: 100%;
  padding: 14px 18px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-glass);
  background: var(--bg-glass);
  color: var(--text-primary);
  font-family: inherit;
}
.contact-form textarea { min-height: 140px; resize: vertical; }
.alert {
  padding: 14px 18px;
  border-radius: var(--radius-md);
  margin-bottom: 20px;
}
.alert-success { background: rgba(34,197,94,0.15); border: 1px solid #22c55e; color: #22c55e; }
.alert-error { background: rgba(239,68,68,0.15); border: 1px solid #ef4444; color: #ef4444; }

.option-group {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 16px 0;
}
.option-btn {
  padding: 10px 18px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-glass);
  background: var(--bg-glass);
  color: var(--text-primary);
  cursor: pointer;
  transition: var(--transition);
}
.option-btn:hover, .option-btn.active {
  background: var(--gradient-main);
  color: #fff;
  border-color: transparent;
}

.range-control {
  display: flex;
  align-items: center;
  gap: 16px;
  margin: 16px 0;
}
.range-control input[type="range"] { flex: 1; accent-color: var(--accent-1); }
.range-control output { min-width: 60px; font-weight: 600; color: var(--accent-1); }

/* Animations */
.fade-in { opacity: 0; transform: translateY(24px); transition: opacity 0.6s ease, transform 0.6s ease; }
.fade-in.visible { opacity: 1; transform: translateY(0); }
.float { animation: floatAnim 6s ease-in-out infinite; }
@keyframes floatAnim {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-12px); }
}

/* Responsive */
@media (max-width: 992px) {
  .hero-grid { grid-template-columns: 1fr; text-align: center; }
  .hero-content p { margin-left: auto; margin-right: auto; }
  .hero-btns { justify-content: center; }
  .search-box { margin: 0 auto; }
  .hero-visual { order: -1; min-height: 280px; }
  .sphere-container { width: 240px; height: 240px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
  .nav-links {
    position: fixed;
    top: var(--nav-height);
    left: 0;
    right: 0;
    background: var(--bg-secondary);
    flex-direction: column;
    padding: 20px;
    border-bottom: 1px solid var(--border-glass);
    transform: translateY(-120%);
    opacity: 0;
    transition: var(--transition);
  }
  .nav-links.active { transform: translateY(0); opacity: 1; }
  .hamburger { display: flex; }
  .footer-grid { grid-template-columns: 1fr; }
}