/* ============================================
   SEO PERUGIA - Premium Design System
   Consulente SEO a Perugia
   ============================================ */

/* --- CSS Variables --- */
:root {
  --primary: #0a0e27;
  --primary-light: #111640;
  --primary-dark: #060818;
  --cyan: #00d4ff;
  --cyan-dark: #00a8cc;
  --purple: #7c3aed;
  --purple-light: #a78bfa;
  --magenta: #ec4899;
  --gold: #f59e0b;
  --green: #10b981;
  --surface: rgba(255,255,255,0.04);
  --surface-hover: rgba(255,255,255,0.08);
  --glass: rgba(255,255,255,0.06);
  --glass-border: rgba(255,255,255,0.1);
  --text: #e2e8f0;
  --text-muted: #94a3b8;
  --text-dim: #64748b;
  --gradient-main: linear-gradient(135deg, #00d4ff 0%, #7c3aed 50%, #ec4899 100%);
  --gradient-subtle: linear-gradient(135deg, rgba(0,212,255,0.15) 0%, rgba(124,58,237,0.15) 100%);
  --gradient-card: linear-gradient(135deg, rgba(0,212,255,0.08) 0%, rgba(124,58,237,0.08) 100%);
  --shadow-glow: 0 0 40px rgba(0,212,255,0.15);
  --shadow-card: 0 8px 32px rgba(0,0,0,0.3);
  --shadow-elevated: 0 20px 60px rgba(0,0,0,0.4);
  --radius-sm: 8px;
  --radius: 16px;
  --radius-lg: 24px;
  --radius-xl: 32px;
  --font-main: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-display: 'Space Grotesk', 'Inter', sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.6s cubic-bezier(0.4, 0, 0.2, 1);
  --max-width: 1280px;
  --nav-height: 80px;
}

/* --- Reset & Base --- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font-main);
  background: var(--primary);
  color: var(--text);
  line-height: 1.7;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--cyan); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--purple-light); }
ul, ol { list-style: none; }
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.2;
  color: #fff;
}

/* --- Utilities --- */
.container { max-width: var(--max-width); margin: 0 auto; padding: 0 24px; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); border: 0; }
.text-gradient {
  background: var(--gradient-main);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.section-label {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 3px;
  color: var(--cyan);
  margin-bottom: 16px;
  display: inline-flex;
  align-items: center;
  gap: 12px;
}
.section-label::before {
  content: '';
  width: 32px;
  height: 2px;
  background: var(--gradient-main);
  border-radius: 2px;
}
.section-title {
  font-size: clamp(2rem, 4vw, 3.2rem);
  margin-bottom: 20px;
  letter-spacing: -0.02em;
}
.section-subtitle {
  font-size: 1.15rem;
  color: var(--text-muted);
  max-width: 640px;
  line-height: 1.8;
}

/* --- Animated Background Mesh --- */
.mesh-bg {
  position: fixed;
  top: 0; left: 0;
  width: 100%; height: 100%;
  z-index: -1;
  overflow: hidden;
}
.mesh-bg::before,
.mesh-bg::after {
  content: '';
  position: absolute;
  border-radius: 50%;
  filter: blur(120px);
  opacity: 0.3;
  animation: meshFloat 20s ease-in-out infinite;
}
.mesh-bg::before {
  width: 600px; height: 600px;
  background: radial-gradient(circle, var(--cyan) 0%, transparent 70%);
  top: -200px; right: -100px;
}
.mesh-bg::after {
  width: 500px; height: 500px;
  background: radial-gradient(circle, var(--purple) 0%, transparent 70%);
  bottom: -150px; left: -100px;
  animation-delay: -10s;
}
@keyframes meshFloat {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(30px, -40px) scale(1.1); }
  66% { transform: translate(-20px, 30px) scale(0.95); }
}

/* --- Navigation --- */
.nav {
  position: fixed;
  top: 0; left: 0;
  width: 100%;
  z-index: 1000;
  padding: 16px 0;
  transition: var(--transition);
}
.nav.scrolled {
  background: rgba(10, 14, 39, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--glass-border);
  padding: 8px 0;
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}
.nav-logo {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 800;
  color: #fff;
  display: flex;
  align-items: center;
  gap: 8px;
}
.nav-logo img {
  max-height: 40px;
  width: auto;
  height: auto;
}
.nav-logo .logo-icon {
  width: 40px; height: 40px;
  background: var(--gradient-main);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  font-weight: 900;
  color: #fff;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 8px;
}
.nav-links a {
  color: var(--text-muted);
  font-size: 0.9rem;
  font-weight: 500;
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  transition: var(--transition);
  position: relative;
}
.nav-links a:hover,
.nav-links a.active {
  color: #fff;
  background: var(--surface-hover);
}
.nav-links a.active::after {
  content: '';
  position: absolute;
  bottom: 2px;
  left: 50%;
  transform: translateX(-50%);
  width: 20px;
  height: 2px;
  background: var(--gradient-main);
  border-radius: 2px;
}
.nav-cta {
  background: var(--gradient-main) !important;
  color: #fff !important;
  font-weight: 600 !important;
  padding: 10px 24px !important;
  border-radius: 50px !important;
  box-shadow: 0 4px 20px rgba(0,212,255,0.3);
}
.nav-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(0,212,255,0.4) !important;
}
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 8px;
  background: none;
  border: none;
}
.nav-toggle span {
  width: 24px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: var(--transition);
}
.nav-toggle.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.nav-toggle.active span:nth-child(2) { opacity: 0; }
.nav-toggle.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* --- Hero --- */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 120px 0 80px;
  position: relative;
  overflow: hidden;
}
.hero-grid {
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
  background-image:
    linear-gradient(rgba(0,212,255,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,212,255,0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 40%, black 30%, transparent 100%);
}
.hero .container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}
.hero-content { z-index: 2; }
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--glass);
  border: 1px solid var(--glass-border);
  padding: 8px 20px;
  border-radius: 50px;
  font-size: 0.85rem;
  color: var(--cyan);
  font-weight: 500;
  margin-bottom: 32px;
  backdrop-filter: blur(10px);
}
.hero-badge .pulse {
  width: 8px; height: 8px;
  background: var(--green);
  border-radius: 50%;
  animation: pulse 2s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(1.5); }
}
.hero h1 {
  font-size: clamp(2.5rem, 5.5vw, 4.5rem);
  letter-spacing: -0.03em;
  margin-bottom: 24px;
  line-height: 1.1;
}
.hero p {
  font-size: 1.2rem;
  color: var(--text-muted);
  max-width: 520px;
  margin-bottom: 40px;
  line-height: 1.8;
}
.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}
.hero-visual {
  position: relative;
  z-index: 2;
}
.hero-card {
  background: var(--glass);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: 40px;
  backdrop-filter: blur(20px);
  position: relative;
  overflow: hidden;
}
.hero-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 3px;
  background: var(--gradient-main);
}
.hero-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}
.stat-item {
  text-align: center;
  padding: 20px;
  background: var(--surface);
  border-radius: var(--radius);
  border: 1px solid var(--glass-border);
  transition: var(--transition);
}
.stat-item:hover {
  background: var(--surface-hover);
  transform: translateY(-4px);
  border-color: rgba(0,212,255,0.3);
}
.stat-number {
  font-family: var(--font-display);
  font-size: 2.5rem;
  font-weight: 800;
  background: var(--gradient-main);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
  margin-bottom: 8px;
}
.stat-label {
  font-size: 0.85rem;
  color: var(--text-muted);
  font-weight: 500;
}
.hero-floating {
  position: absolute;
  background: var(--glass);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
  padding: 12px 20px;
  backdrop-filter: blur(10px);
  font-size: 0.85rem;
  color: var(--text);
  display: flex;
  align-items: center;
  gap: 8px;
  animation: floatBadge 6s ease-in-out infinite;
  white-space: nowrap;
}
.hero-floating:nth-child(2) { top: 20px; right: -20px; animation-delay: -2s; }
.hero-floating:nth-child(3) { bottom: 40px; left: -30px; animation-delay: -4s; }
@keyframes floatBadge {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-main);
  font-weight: 600;
  font-size: 0.95rem;
  padding: 14px 32px;
  border-radius: 50px;
  border: none;
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
  position: relative;
  overflow: hidden;
}
.btn-primary {
  background: var(--gradient-main);
  color: #fff;
  box-shadow: 0 4px 20px rgba(0,212,255,0.3);
}
.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 30px rgba(0,212,255,0.4);
  color: #fff;
}
.btn-secondary {
  background: var(--glass);
  color: var(--text);
  border: 1px solid var(--glass-border);
  backdrop-filter: blur(10px);
}
.btn-secondary:hover {
  background: var(--surface-hover);
  border-color: var(--cyan);
  color: #fff;
  transform: translateY(-2px);
}
.btn-outline {
  background: transparent;
  color: var(--cyan);
  border: 2px solid var(--cyan);
}
.btn-outline:hover {
  background: var(--cyan);
  color: var(--primary);
  transform: translateY(-2px);
}

/* --- Section Spacing --- */
.section { padding: 100px 0; position: relative; }
.section-dark { background: var(--primary-dark); }
.section-alt { background: var(--primary-light); }

/* --- Services --- */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 24px;
  margin-top: 48px;
}
.service-card {
  background: var(--glass);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: 40px 32px;
  position: relative;
  overflow: hidden;
  transition: var(--transition);
  cursor: pointer;
  text-decoration: none;
  display: block;
  color: var(--text);
}
.service-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
  background: var(--gradient-card);
  opacity: 0;
  transition: var(--transition);
}
.service-card:hover {
  transform: translateY(-8px);
  border-color: rgba(0,212,255,0.3);
  box-shadow: var(--shadow-glow);
  color: var(--text);
}
.service-card:hover::before { opacity: 1; }
.service-icon {
  width: 60px; height: 60px;
  background: var(--gradient-subtle);
  border: 1px solid var(--glass-border);
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 24px;
  position: relative;
  z-index: 1;
}
.service-card h3 {
  font-size: 1.3rem;
  margin-bottom: 12px;
  position: relative;
  z-index: 1;
}
.service-card p {
  color: var(--text-muted);
  font-size: 0.95rem;
  position: relative;
  z-index: 1;
  line-height: 1.7;
}
.service-card .arrow {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--cyan);
  font-size: 0.9rem;
  font-weight: 600;
  margin-top: 20px;
  position: relative;
  z-index: 1;
  transition: var(--transition);
}
.service-card:hover .arrow { gap: 12px; }

/* --- Why Choose / Features --- */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 32px;
  margin-top: 48px;
}
.feature-item {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}
.feature-dot {
  width: 12px; height: 12px;
  min-width: 12px;
  border-radius: 50%;
  background: var(--gradient-main);
  margin-top: 6px;
  box-shadow: 0 0 20px rgba(0,212,255,0.4);
}
.feature-item h4 {
  font-size: 1.05rem;
  margin-bottom: 6px;
}
.feature-item p {
  color: var(--text-muted);
  font-size: 0.9rem;
}

/* --- Process Steps --- */
.process-steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 32px;
  margin-top: 48px;
  counter-reset: step;
}
.process-step {
  text-align: center;
  padding: 40px 24px;
  background: var(--glass);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  position: relative;
  counter-increment: step;
  transition: var(--transition);
}
.process-step:hover {
  transform: translateY(-4px);
  border-color: rgba(0,212,255,0.3);
}
.process-step::before {
  content: counter(step, decimal-leading-zero);
  font-family: var(--font-display);
  font-size: 3rem;
  font-weight: 800;
  background: var(--gradient-main);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  opacity: 0.4;
  display: block;
  margin-bottom: 16px;
}
.process-step h4 {
  font-size: 1.15rem;
  margin-bottom: 8px;
}
.process-step p {
  color: var(--text-muted);
  font-size: 0.9rem;
}

/* --- Testimonials --- */
.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
  gap: 24px;
  margin-top: 48px;
}
.testimonial-card {
  background: var(--glass);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: 32px;
  position: relative;
}
.testimonial-card::before {
  content: '\201C';
  font-size: 4rem;
  font-family: Georgia, serif;
  background: var(--gradient-main);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
  display: block;
  margin-bottom: 8px;
}
.testimonial-card p {
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.8;
  margin-bottom: 20px;
  font-style: italic;
}
.testimonial-author {
  display: flex;
  align-items: center;
  gap: 12px;
}
.testimonial-avatar {
  width: 44px; height: 44px;
  border-radius: 50%;
  background: var(--gradient-main);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1rem;
  color: #fff;
}
.testimonial-name { font-weight: 600; font-size: 0.95rem; color: #fff; }
.testimonial-role { font-size: 0.8rem; color: var(--text-dim); }
.stars { color: var(--gold); margin-bottom: 16px; font-size: 1rem; letter-spacing: 2px; }

/* --- Blog Grid --- */
.blog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(360px, 1fr));
  gap: 28px;
  margin-top: 48px;
}
.blog-card {
  background: var(--glass);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  text-decoration: none;
  color: var(--text);
}
.blog-card:hover {
  transform: translateY(-6px);
  border-color: rgba(0,212,255,0.3);
  box-shadow: var(--shadow-glow);
  color: var(--text);
}
.blog-card-image {
  width: 100%;
  height: 200px;
  background: var(--gradient-subtle);
  position: relative;
  overflow: hidden;
}
.blog-card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition-slow);
}
.blog-card:hover .blog-card-image img { transform: scale(1.05); }
.blog-card-body { padding: 28px; flex: 1; display: flex; flex-direction: column; }
.blog-card-tag {
  display: inline-flex;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--cyan);
  background: rgba(0,212,255,0.1);
  padding: 4px 12px;
  border-radius: 50px;
  margin-bottom: 12px;
  align-self: flex-start;
}
.blog-card h3 {
  font-size: 1.2rem;
  margin-bottom: 12px;
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.blog-card p {
  color: var(--text-muted);
  font-size: 0.9rem;
  line-height: 1.7;
  flex: 1;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.blog-card-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 16px;
  margin-top: 16px;
  border-top: 1px solid var(--glass-border);
}
.blog-card-date { font-size: 0.8rem; color: var(--text-dim); }
.blog-card-read { font-size: 0.85rem; color: var(--cyan); font-weight: 600; }

/* --- Blog Featured Card --- */
.blog-featured {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
}
.blog-featured .blog-card-image { height: 100%; min-height: 300px; }
.blog-featured .blog-card-body { padding: 40px; justify-content: center; }
.blog-featured h3 { font-size: 1.6rem; -webkit-line-clamp: 3; }

/* --- Blog Pagination --- */
.pagination {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-top: 48px;
}
.pagination a, .pagination span {
  width: 44px; height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 12px;
  font-weight: 600;
  font-size: 0.9rem;
  background: var(--glass);
  border: 1px solid var(--glass-border);
  color: var(--text-muted);
  transition: var(--transition);
}
.pagination a:hover {
  background: var(--surface-hover);
  border-color: var(--cyan);
  color: #fff;
}
.pagination .active {
  background: var(--gradient-main);
  border: none;
  color: #fff;
}

/* --- Article --- */
.article-hero {
  padding: 160px 0 60px;
  text-align: center;
  position: relative;
}
.article-hero::after {
  content: '';
  position: absolute;
  bottom: 0; left: 50%;
  transform: translateX(-50%);
  width: 80%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--glass-border), transparent);
}
.article-meta {
  display: flex;
  justify-content: center;
  gap: 24px;
  margin-bottom: 24px;
  flex-wrap: wrap;
}
.article-meta span {
  font-size: 0.85rem;
  color: var(--text-muted);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.article-hero h1 {
  font-size: clamp(2rem, 4vw, 3rem);
  letter-spacing: -0.02em;
  max-width: 800px;
  margin: 0 auto 24px;
}
.article-hero .excerpt {
  font-size: 1.15rem;
  color: var(--text-muted);
  max-width: 640px;
  margin: 0 auto;
  line-height: 1.8;
}
.article-content {
  max-width: 780px;
  margin: 0 auto;
  padding: 60px 24px;
}
.article-content h2 {
  font-size: 1.8rem;
  margin: 48px 0 20px;
  padding-top: 24px;
  border-top: 1px solid var(--glass-border);
}
.article-content h3 {
  font-size: 1.4rem;
  margin: 36px 0 16px;
}
.article-content h4 {
  font-size: 1.15rem;
  margin: 28px 0 12px;
}
.article-content p {
  margin-bottom: 20px;
  font-size: 1.05rem;
  line-height: 1.85;
  color: var(--text);
}
.article-content ul, .article-content ol {
  margin: 20px 0;
  padding-left: 24px;
}
.article-content ul { list-style: disc; }
.article-content ol { list-style: decimal; }
.article-content li {
  margin-bottom: 10px;
  font-size: 1.05rem;
  color: var(--text);
  line-height: 1.7;
}
.article-content li::marker { color: var(--cyan); }
.article-content blockquote {
  margin: 32px 0;
  padding: 24px 32px;
  border-left: 4px solid var(--cyan);
  background: var(--glass);
  border-radius: 0 var(--radius) var(--radius) 0;
  font-style: italic;
  color: var(--text-muted);
}
.article-content img {
  border-radius: var(--radius);
  margin: 32px 0;
  box-shadow: var(--shadow-card);
}
.article-content a {
  color: var(--cyan);
  text-decoration: underline;
  text-underline-offset: 3px;
}
.article-content a:hover { color: var(--purple-light); }
.article-content strong { color: #fff; font-weight: 600; }
.article-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 24px 0;
  font-size: 0.95rem;
}
.article-content th, .article-content td {
  padding: 12px 16px;
  border: 1px solid var(--glass-border);
  text-align: left;
}
.article-content th {
  background: var(--glass);
  color: #fff;
  font-weight: 600;
}
.article-content code {
  font-family: var(--font-mono);
  font-size: 0.9em;
  background: var(--glass);
  padding: 2px 8px;
  border-radius: 6px;
  border: 1px solid var(--glass-border);
}
.article-content pre {
  background: var(--primary-dark);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
  padding: 24px;
  overflow-x: auto;
  margin: 24px 0;
}
.article-content pre code {
  background: none;
  border: none;
  padding: 0;
}

/* --- Table of Contents --- */
.toc {
  background: var(--glass);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: 28px 32px;
  margin-bottom: 48px;
}
.toc h4 {
  font-size: 1rem;
  margin-bottom: 16px;
  color: var(--cyan);
}
.toc ul { padding-left: 0; }
.toc li {
  margin-bottom: 8px;
  list-style: none;
}
.toc a {
  color: var(--text-muted);
  font-size: 0.9rem;
  text-decoration: none;
  transition: var(--transition);
  display: flex;
  align-items: center;
  gap: 8px;
}
.toc a::before {
  content: '';
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--glass-border);
  transition: var(--transition);
}
.toc a:hover { color: var(--cyan); }
.toc a:hover::before { background: var(--cyan); }

/* --- Contact --- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: start;
  margin-top: 48px;
}
.contact-info-list { display: flex; flex-direction: column; gap: 24px; }
.contact-info-item {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  padding: 24px;
  background: var(--glass);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
  transition: var(--transition);
}
.contact-info-item:hover {
  border-color: rgba(0,212,255,0.3);
  transform: translateX(4px);
}
.contact-icon {
  width: 48px; height: 48px;
  min-width: 48px;
  background: var(--gradient-subtle);
  border: 1px solid var(--glass-border);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
}
.contact-info-item h4 { font-size: 1rem; margin-bottom: 4px; }
.contact-info-item p { color: var(--text-muted); font-size: 0.9rem; }
.contact-info-item a { color: var(--cyan); }
.contact-form {
  background: var(--glass);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: 40px;
}
.form-group { margin-bottom: 20px; }
.form-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-muted);
  margin-bottom: 8px;
}
.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 14px 18px;
  background: var(--surface);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-sm);
  color: var(--text);
  font-family: var(--font-main);
  font-size: 0.95rem;
  transition: var(--transition);
  outline: none;
}
.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  border-color: var(--cyan);
  box-shadow: 0 0 0 3px rgba(0,212,255,0.1);
}
.form-group textarea { min-height: 140px; resize: vertical; }

/* --- CTA Banner --- */
.cta-banner {
  background: var(--gradient-subtle);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-xl);
  padding: 64px 48px;
  text-align: center;
  position: relative;
  overflow: hidden;
  margin: 0 24px;
}
.cta-banner::before {
  content: '';
  position: absolute;
  top: -50%; right: -20%;
  width: 400px; height: 400px;
  background: radial-gradient(circle, rgba(0,212,255,0.15) 0%, transparent 60%);
  border-radius: 50%;
}
.cta-banner h2 {
  font-size: clamp(1.8rem, 3vw, 2.5rem);
  margin-bottom: 16px;
  position: relative;
  z-index: 1;
}
.cta-banner p {
  color: var(--text-muted);
  font-size: 1.1rem;
  max-width: 540px;
  margin: 0 auto 32px;
  position: relative;
  z-index: 1;
}
.cta-banner .btn { position: relative; z-index: 1; }

/* --- Footer --- */
.footer {
  padding: 80px 0 32px;
  border-top: 1px solid var(--glass-border);
  margin-top: 100px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 48px;
}
.footer-brand p {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-top: 16px;
  max-width: 320px;
  line-height: 1.7;
}
.footer h4 {
  font-size: 0.95rem;
  margin-bottom: 20px;
  color: #fff;
}
.footer-links { display: flex; flex-direction: column; gap: 10px; }
.footer-links a {
  color: var(--text-muted);
  font-size: 0.9rem;
  transition: var(--transition);
}
.footer-links a:hover { color: var(--cyan); transform: translateX(4px); }
.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 32px;
  border-top: 1px solid var(--glass-border);
  font-size: 0.85rem;
  color: var(--text-dim);
}
.footer-bottom a { color: var(--text-muted); }

/* --- Breadcrumbs --- */
.breadcrumbs {
  padding: 110px 0 0;
  font-size: 0.85rem;
}
.breadcrumbs a { color: var(--text-dim); }
.breadcrumbs span { color: var(--text-muted); }
.breadcrumbs .sep { margin: 0 8px; color: var(--text-dim); }

/* --- Service Detail Page --- */
.service-detail-hero {
  padding: 160px 0 80px;
  position: relative;
}
.service-detail-hero h1 {
  font-size: clamp(2.2rem, 4vw, 3.5rem);
  margin-bottom: 20px;
}
.service-detail-content {
  max-width: 900px;
  margin: 0 auto;
}

/* --- Scroll animations --- */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}
.reveal-left {
  opacity: 0;
  transform: translateX(-40px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}
.reveal-left.visible {
  opacity: 1;
  transform: translateX(0);
}
.reveal-right {
  opacity: 0;
  transform: translateX(40px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}
.reveal-right.visible {
  opacity: 1;
  transform: translateX(0);
}
.stagger > * {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.stagger.visible > *:nth-child(1) { transition-delay: 0s; }
.stagger.visible > *:nth-child(2) { transition-delay: 0.1s; }
.stagger.visible > *:nth-child(3) { transition-delay: 0.2s; }
.stagger.visible > *:nth-child(4) { transition-delay: 0.3s; }
.stagger.visible > *:nth-child(5) { transition-delay: 0.4s; }
.stagger.visible > *:nth-child(6) { transition-delay: 0.5s; }
.stagger.visible > * {
  opacity: 1;
  transform: translateY(0);
}

/* --- Search Box --- */
.search-box {
  max-width: 480px;
  margin: 0 auto 40px;
  position: relative;
}
.search-box input {
  width: 100%;
  padding: 16px 24px 16px 48px;
  background: var(--glass);
  border: 1px solid var(--glass-border);
  border-radius: 50px;
  color: var(--text);
  font-size: 1rem;
  font-family: var(--font-main);
  outline: none;
  transition: var(--transition);
}
.search-box input:focus {
  border-color: var(--cyan);
  box-shadow: 0 0 0 3px rgba(0,212,255,0.1);
}
.search-box .search-icon {
  position: absolute;
  left: 18px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-dim);
  font-size: 1.1rem;
}

/* --- Tag Cloud --- */
.tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 16px;
}
.tag {
  display: inline-flex;
  padding: 6px 14px;
  background: var(--surface);
  border: 1px solid var(--glass-border);
  border-radius: 50px;
  font-size: 0.8rem;
  color: var(--text-muted);
  transition: var(--transition);
  text-decoration: none;
}
.tag:hover {
  border-color: var(--cyan);
  color: var(--cyan);
  background: rgba(0,212,255,0.1);
}

/* --- Related Articles --- */
.related-articles {
  padding: 60px 0;
  border-top: 1px solid var(--glass-border);
}

/* --- 404 --- */
.error-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
}
.error-page h1 {
  font-size: 8rem;
  background: var(--gradient-main);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ==============================
   RESPONSIVE
   ============================== */
@media (max-width: 1024px) {
  .hero .container { grid-template-columns: 1fr; gap: 40px; }
  .hero-visual { display: none; }
  .contact-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .blog-featured { grid-template-columns: 1fr; }
  .blog-featured .blog-card-image { min-height: 200px; }
}
@media (max-width: 768px) {
  .nav-links {
    display: none;
    position: fixed;
    top: 0; left: 0;
    width: 100%; height: 100vh;
    background: rgba(10, 14, 39, 0.98);
    backdrop-filter: blur(20px);
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 16px;
    z-index: 999;
  }
  .nav-links.open { display: flex; }
  .nav-links a { font-size: 1.2rem; padding: 12px 24px; }
  .nav-toggle { display: flex; z-index: 1001; }
  .services-grid { grid-template-columns: 1fr; }
  .blog-grid { grid-template-columns: 1fr; }
  .hero h1 { font-size: 2.2rem; }
  .hero p { font-size: 1rem; }
  .hero-actions { flex-direction: column; }
  .section { padding: 60px 0; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .footer-bottom { flex-direction: column; gap: 12px; text-align: center; }
  .process-steps { grid-template-columns: 1fr; }
  .features-grid { grid-template-columns: 1fr; }
  .testimonials-grid { grid-template-columns: 1fr; }
  .cta-banner { padding: 40px 24px; margin: 0; border-radius: var(--radius); }
  .article-hero h1 { font-size: 1.8rem; }
  .hero-stats { grid-template-columns: 1fr; }
}

/* --- FAQ Accordion --- */
.faq-list { display: flex; flex-direction: column; gap: 12px; }
.faq-item { background: var(--surface); border: 1px solid var(--glass-border); border-radius: var(--radius); overflow: hidden; transition: var(--transition); }
.faq-item:hover { border-color: rgba(0,212,255,0.3); }
.faq-q { display: flex; justify-content: space-between; align-items: center; width: 100%; padding: 20px 24px; background: none; border: none; color: var(--text); font-size: 1rem; font-weight: 600; font-family: inherit; cursor: pointer; text-align: left; gap: 16px; }
.faq-toggle { font-size: 1.4rem; color: var(--cyan); transition: transform 0.3s; flex-shrink: 0; }
.faq-item.active .faq-toggle { transform: rotate(45deg); }
.faq-a { max-height: 0; overflow: hidden; transition: max-height 0.35s ease, padding 0.35s ease; }
.faq-a p { padding: 0 24px 20px; color: var(--text-muted); line-height: 1.7; margin: 0; }
.faq-item.active .faq-a { max-height: 500px; }

/* --- Print styles --- */
@media print {
  .nav, .footer, .cta-banner, .mesh-bg { display: none; }
  body { background: #fff; color: #000; }
  .article-content { max-width: 100%; }
  a { color: #000; text-decoration: underline; }
}