/* SynoTech Vision — Main Stylesheet */
:root {
  --primary: #003399;
  --primary-light: #0047AB;
  --primary-dark: #001a4d;
  --accent: #0066cc;
  --black: #000000;
  --white: #ffffff;
  --gray-50: #f8fafc;
  --gray-100: #f1f5f9;
  --gray-200: #e2e8f0;
  --gray-400: #94a3b8;
  --gray-600: #475569;
  --gray-800: #1e293b;
  --gray-900: #0f172a;
  --glass-bg: rgba(255, 255, 255, 0.1);
  --glass-bg-light: rgba(255, 255, 255, 0.85);
  --glass-border: rgba(255, 255, 255, 0.22);
  --shadow-sm: 0 2px 8px rgba(0, 51, 153, 0.08);
  --shadow: 0 8px 32px rgba(0, 51, 153, 0.12);
  --shadow-lg: 0 20px 60px rgba(0, 51, 153, 0.18);
  --radius-sm: 8px;
  --radius: 16px;
  --radius-lg: 24px;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --font: 'Inter', system-ui, -apple-system, sans-serif;
  --container: 1200px;
  --header-h: 80px;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: var(--font);
  color: var(--gray-900);
  background: var(--white);
  line-height: 1.65;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; transition: color var(--transition); }
ul { list-style: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
input, textarea, select { font-family: inherit; font-size: 1rem; }

.container { max-width: var(--container); margin: 0 auto; padding: 0 24px; }
.section { padding: 100px 0; position: relative; }
.section-alt { background: var(--gray-50); }
.section-dark {
  background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 100%);
  color: var(--white);
}
.section-header { text-align: center; max-width: 720px; margin: 0 auto 64px; }
.section-label {
  display: inline-block;
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--primary);
  margin-bottom: 12px;
}
.section-dark .section-label { color: rgba(255,255,255,0.75); }
.section-title {
  font-size: clamp(1.875rem, 4vw, 2.75rem);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}
.section-desc { font-size: 1.0625rem; color: var(--gray-600); line-height: 1.7; }
.section-dark .section-desc { color: rgba(255,255,255,0.8); }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 28px;
  font-size: 0.9375rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  transition: transform var(--transition), box-shadow var(--transition), background var(--transition);
  white-space: nowrap;
}
.btn-primary {
  background: var(--white);
  color: var(--primary);
  box-shadow: var(--shadow-sm);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: var(--shadow); }
.btn-outline {
  background: transparent;
  color: var(--white);
  border: 2px solid rgba(255,255,255,0.5);
}
.btn-outline:hover { background: rgba(255,255,255,0.1); border-color: var(--white); }
.btn-blue {
  background: var(--primary);
  color: var(--white);
}
.btn-blue:hover { background: var(--primary-light); transform: translateY(-2px); box-shadow: var(--shadow); }
.btn-ghost {
  background: transparent;
  color: var(--primary);
  border: 2px solid var(--primary);
}
.btn-ghost:hover { background: var(--primary); color: var(--white); }

/* Header / Nav */
.header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  height: var(--header-h);
  background: rgba(255,255,255,0.88);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(0,51,153,0.08);
  transition: box-shadow var(--transition), background var(--transition);
}
.header.scrolled { box-shadow: var(--shadow-sm); background: rgba(255,255,255,0.96); }
.nav { display: flex; align-items: center; justify-content: space-between; height: 100%; }
.logo { display: flex; align-items: center; gap: 12px; }
.logo img { height: 48px; width: auto; }
.logo-text { display: flex; flex-direction: column; line-height: 1.1; }
.logo-text .brand { font-size: 1.125rem; font-weight: 700; color: var(--primary); }
.logo-text .tagline { font-size: 0.625rem; font-weight: 400; letter-spacing: 0.35em; color: var(--black); text-transform: lowercase; }
.nav-menu { display: flex; align-items: center; gap: 4px; }
.nav-link {
  padding: 8px 14px;
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--gray-800);
  border-radius: var(--radius-sm);
  transition: color var(--transition), background var(--transition);
}
.nav-link:hover, .nav-link.active { color: var(--primary); background: rgba(0,51,153,0.06); }
.nav-cta { margin-left: 12px; }
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
}
.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--gray-900);
  transition: var(--transition);
  border-radius: 2px;
}

/* Hero */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: var(--header-h);
  background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 45%, var(--primary-light) 100%);
  color: var(--white);
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 20% 80%, rgba(0,102,204,0.35) 0%, transparent 60%),
    radial-gradient(ellipse 60% 50% at 85% 20%, rgba(255,255,255,0.08) 0%, transparent 50%);
  pointer-events: none;
}
.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
  position: relative;
  z-index: 1;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 100px;
  font-size: 0.8125rem;
  font-weight: 500;
  margin-bottom: 24px;
  backdrop-filter: blur(8px);
}
.hero-badge-dot { width: 8px; height: 8px; background: #4ade80; border-radius: 50%; animation: pulse 2s infinite; }
.hero-title {
  font-size: clamp(2.25rem, 5vw, 3.5rem);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin-bottom: 24px;
}
.hero-title span { background: linear-gradient(90deg, #fff 0%, rgba(255,255,255,0.75) 100%); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.hero-desc { font-size: 1.125rem; color: rgba(255,255,255,0.85); margin-bottom: 36px; max-width: 520px; line-height: 1.7; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 16px; margin-bottom: 48px; }
.hero-stats { display: flex; gap: 40px; flex-wrap: wrap; }
.hero-stat-num { font-size: 2rem; font-weight: 700; line-height: 1; }
.hero-stat-label { font-size: 0.8125rem; color: rgba(255,255,255,0.7); margin-top: 4px; }
.hero-visual { position: relative; }
.hero-card-stack { position: relative; height: 420px; }
.hero-glass-card {
  position: absolute;
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow-lg);
}
.hero-glass-card:nth-child(1) { top: 0; right: 0; width: 280px; }
.hero-glass-card:nth-child(2) { top: 120px; left: 0; width: 260px; }
.hero-glass-card:nth-child(3) { bottom: 0; right: 40px; width: 300px; }
.hero-card-icon {
  width: 48px; height: 48px;
  background: rgba(255,255,255,0.15);
  border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 16px;
  font-size: 1.5rem;
}
.hero-card-title { font-weight: 600; margin-bottom: 8px; }
.hero-card-text { font-size: 0.875rem; color: rgba(255,255,255,0.75); }

/* Page Hero (inner pages) */
.page-hero {
  padding: calc(var(--header-h) + 80px) 0 80px;
  background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 100%);
  color: var(--white);
  text-align: center;
}
.page-hero h1 { font-size: clamp(2rem, 4vw, 3rem); font-weight: 700; margin-bottom: 16px; }
.page-hero p { font-size: 1.125rem; color: rgba(255,255,255,0.85); max-width: 600px; margin: 0 auto; }
.breadcrumb { display: flex; justify-content: center; gap: 8px; font-size: 0.875rem; margin-bottom: 24px; color: rgba(255,255,255,0.6); }
.breadcrumb a:hover { color: var(--white); }
.breadcrumb span { color: rgba(255,255,255,0.4); }

/* Glass Cards */
.glass-card {
  background: var(--glass-bg-light);
  backdrop-filter: blur(16px);
  border: 1px solid rgba(0,51,153,0.08);
  border-radius: var(--radius);
  padding: 32px;
  box-shadow: var(--shadow);
  transition: transform var(--transition), box-shadow var(--transition);
}
.glass-card:hover { transform: translateY(-8px); box-shadow: var(--shadow-lg); }
.glass-card-dark {
  background: var(--glass-bg);
  border-color: var(--glass-border);
  color: var(--white);
}

/* Grid layouts */
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 32px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }

/* About */
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: center; }
.about-image {
  border-radius: var(--radius-lg);
  overflow: hidden;
  position: relative;
  aspect-ratio: 4/3;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
  display: flex; align-items: center; justify-content: center;
}
.about-image-inner {
  width: 90%; height: 90%;
  background: var(--glass-bg);
  backdrop-filter: blur(12px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  padding: 32px; text-align: center; color: var(--white);
}
.about-features { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; margin-top: 32px; }
.about-feature { display: flex; gap: 12px; align-items: flex-start; }
.about-feature-icon {
  flex-shrink: 0;
  width: 40px; height: 40px;
  background: rgba(0,51,153,0.08);
  border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  color: var(--primary);
  font-size: 1.125rem;
}
.about-feature h4 { font-size: 0.9375rem; font-weight: 600; margin-bottom: 4px; }
.about-feature p { font-size: 0.875rem; color: var(--gray-600); }

/* Service Cards */
.service-card { text-align: center; }
.service-icon {
  width: 64px; height: 64px;
  margin: 0 auto 20px;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
  border-radius: 16px;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.75rem;
  transition: transform var(--transition);
}
.glass-card:hover .service-icon { transform: scale(1.08) rotate(-3deg); }
.service-card h3 { font-size: 1.125rem; font-weight: 600; margin-bottom: 12px; }
.service-card p { font-size: 0.9375rem; color: var(--gray-600); margin-bottom: 16px; }
.service-link { font-size: 0.875rem; font-weight: 600; color: var(--primary); }
.service-link:hover { text-decoration: underline; }

/* Industry Cards */
.industry-card {
  padding: 28px;
  border-radius: var(--radius);
  background: var(--white);
  border: 1px solid var(--gray-200);
  transition: var(--transition);
}
.industry-card:hover { border-color: var(--primary); box-shadow: var(--shadow); transform: translateY(-4px); }
.industry-icon { font-size: 2rem; margin-bottom: 16px; }
.industry-card h3 { font-size: 1rem; font-weight: 600; margin-bottom: 8px; }
.industry-card p { font-size: 0.875rem; color: var(--gray-600); }

/* Tech Stack */
.tech-grid { display: flex; flex-wrap: wrap; gap: 16px; justify-content: center; }
.tech-badge {
  padding: 12px 24px;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 100px;
  font-size: 0.9375rem;
  font-weight: 500;
  backdrop-filter: blur(8px);
  transition: var(--transition);
}
.tech-badge:hover { background: rgba(255,255,255,0.2); transform: translateY(-2px); }

/* Client Cards */
.client-card { padding: 36px; }
.client-badge {
  display: inline-block;
  padding: 4px 12px;
  background: rgba(0,51,153,0.08);
  color: var(--primary);
  font-size: 0.75rem;
  font-weight: 600;
  border-radius: 100px;
  margin-bottom: 16px;
}
.client-card h3 { font-size: 1.25rem; font-weight: 700; margin-bottom: 8px; }
.client-card .client-type { font-size: 0.875rem; color: var(--gray-600); margin-bottom: 20px; }
.client-card .project-title { font-size: 1rem; font-weight: 600; color: var(--primary); margin-bottom: 16px; }
.client-features { display: flex; flex-direction: column; gap: 10px; }
.client-features li {
  display: flex; align-items: center; gap: 10px;
  font-size: 0.9375rem; color: var(--gray-800);
}
.client-features li::before {
  content: '✓';
  flex-shrink: 0;
  width: 22px; height: 22px;
  background: rgba(0,51,153,0.1);
  color: var(--primary);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 0.75rem; font-weight: 700;
}

/* Portfolio */
.portfolio-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.portfolio-item {
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--white);
  border: 1px solid var(--gray-200);
  transition: var(--transition);
}
.portfolio-item:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.portfolio-thumb {
  height: 180px;
  display: flex; align-items: center; justify-content: center;
  font-size: 2.5rem;
  position: relative;
  overflow: hidden;
}
.portfolio-thumb::after {
  content: '';
  position: absolute; inset: 0;
  background: linear-gradient(to top, rgba(0,0,0,0.3), transparent);
  opacity: 0;
  transition: opacity var(--transition);
}
.portfolio-item:hover .portfolio-thumb::after { opacity: 1; }
.portfolio-body { padding: 20px; }
.portfolio-body h3 { font-size: 1rem; font-weight: 600; margin-bottom: 6px; }
.portfolio-body p { font-size: 0.8125rem; color: var(--gray-600); }
.portfolio-cat { font-size: 0.75rem; font-weight: 600; color: var(--primary); text-transform: uppercase; letter-spacing: 0.05em; }

/* Testimonials / Slider */
.testimonials-section { overflow: hidden; }
.slider-wrapper { position: relative; max-width: 800px; margin: 0 auto; }
.slider-track { display: flex; transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1); }
.slide { min-width: 100%; padding: 0 16px; }
.testimonial-card {
  text-align: center;
  padding: 48px 40px;
  background: var(--glass-bg-light);
  border: 1px solid rgba(0,51,153,0.08);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
}
.testimonial-quote { font-size: 3rem; color: var(--primary); line-height: 1; margin-bottom: 16px; opacity: 0.3; }
.testimonial-text { font-size: 1.125rem; color: var(--gray-800); line-height: 1.8; margin-bottom: 32px; font-style: italic; }
.testimonial-author { font-weight: 600; font-size: 1rem; }
.testimonial-role { font-size: 0.875rem; color: var(--gray-600); margin-top: 4px; }
.slider-controls { display: flex; align-items: center; justify-content: center; gap: 16px; margin-top: 32px; }
.slider-btn {
  width: 44px; height: 44px;
  border-radius: 50%;
  border: 2px solid var(--gray-200);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.125rem;
  color: var(--gray-800);
  transition: var(--transition);
}
.slider-btn:hover { border-color: var(--primary); color: var(--primary); background: rgba(0,51,153,0.04); }
.slider-dots { display: flex; gap: 8px; }
.slider-dot {
  width: 10px; height: 10px;
  border-radius: 50%;
  background: var(--gray-200);
  transition: var(--transition);
  cursor: pointer;
}
.slider-dot.active { background: var(--primary); width: 28px; border-radius: 5px; }

/* FAQ */
.faq-list { max-width: 800px; margin: 0 auto; }
.faq-item {
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-sm);
  margin-bottom: 12px;
  overflow: hidden;
  transition: var(--transition);
}
.faq-item.active { border-color: var(--primary); box-shadow: var(--shadow-sm); }
.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  font-size: 1rem;
  font-weight: 600;
  text-align: left;
  color: var(--gray-900);
  background: var(--white);
  transition: background var(--transition);
}
.faq-question:hover { background: var(--gray-50); }
.faq-icon { font-size: 1.25rem; color: var(--primary); transition: transform var(--transition); flex-shrink: 0; margin-left: 16px; }
.faq-item.active .faq-icon { transform: rotate(45deg); }
.faq-answer { max-height: 0; overflow: hidden; transition: max-height 0.4s ease, padding 0.4s ease; }
.faq-item.active .faq-answer { max-height: 300px; }
.faq-answer-inner { padding: 0 24px 20px; font-size: 0.9375rem; color: var(--gray-600); line-height: 1.7; }

/* Contact */
.contact-grid { display: grid; grid-template-columns: 1fr 1.2fr; gap: 48px; }
.contact-info-card { padding: 32px; }
.contact-info-item { display: flex; gap: 16px; margin-bottom: 28px; }
.contact-info-item:last-child { margin-bottom: 0; }
.contact-info-icon {
  flex-shrink: 0;
  width: 48px; height: 48px;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
  border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  color: var(--white);
  font-size: 1.25rem;
}
.contact-info-item h4 { font-size: 0.8125rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.05em; color: var(--gray-600); margin-bottom: 4px; }
.contact-info-item p, .contact-info-item a { font-size: 1rem; color: var(--gray-900); }
.contact-info-item a:hover { color: var(--primary); }
.contact-form { padding: 40px; }
.form-group { margin-bottom: 20px; }
.form-group label { display: block; font-size: 0.875rem; font-weight: 500; margin-bottom: 8px; color: var(--gray-800); }
.form-group input, .form-group textarea, .form-group select {
  width: 100%;
  padding: 14px 16px;
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-sm);
  background: var(--white);
  transition: border-color var(--transition), box-shadow var(--transition);
  color: var(--gray-900);
}
.form-group input:focus, .form-group textarea:focus, .form-group select:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(0,51,153,0.1);
}
.form-group textarea { min-height: 140px; resize: vertical; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.form-success {
  display: none;
  padding: 16px;
  background: #dcfce7;
  color: #166534;
  border-radius: var(--radius-sm);
  margin-bottom: 20px;
  font-size: 0.9375rem;
}

/* Counters */
.stats-bar {
  background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 100%);
  padding: 64px 0;
  color: var(--white);
}
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 32px; text-align: center; }
.stat-item .stat-num { font-size: clamp(2rem, 4vw, 3rem); font-weight: 700; line-height: 1; margin-bottom: 8px; }
.stat-item .stat-label { font-size: 0.9375rem; color: rgba(255,255,255,0.75); }
.stat-item .stat-suffix { font-size: 1.5rem; font-weight: 700; }

/* CTA Banner */
.cta-banner {
  padding: 80px 0;
  text-align: center;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
  color: var(--white);
  border-radius: var(--radius-lg);
  margin: 0 24px;
  max-width: calc(var(--container) - 48px);
  margin-left: auto;
  margin-right: auto;
}
.cta-banner h2 { font-size: clamp(1.75rem, 3vw, 2.5rem); font-weight: 700; margin-bottom: 16px; }
.cta-banner p { font-size: 1.0625rem; color: rgba(255,255,255,0.85); margin-bottom: 32px; max-width: 560px; margin-left: auto; margin-right: auto; }

/* Mega Footer */
.footer {
  background: var(--gray-900);
  color: rgba(255,255,255,0.75);
  padding-top: 80px;
}
.footer-top { display: grid; grid-template-columns: 1.5fr repeat(4, 1fr); gap: 40px; padding-bottom: 64px; border-bottom: 1px solid rgba(255,255,255,0.08); }
.footer-brand p { font-size: 0.9375rem; line-height: 1.7; margin: 20px 0 24px; max-width: 280px; }
.footer-social { display: flex; gap: 12px; }
.footer-social a {
  width: 40px; height: 40px;
  border-radius: 10px;
  background: rgba(255,255,255,0.08);
  display: flex; align-items: center; justify-content: center;
  font-size: 1rem;
  transition: var(--transition);
}
.footer-social a:hover { background: var(--primary); color: var(--white); }
.footer-col h4 { font-size: 0.875rem; font-weight: 600; color: var(--white); text-transform: uppercase; letter-spacing: 0.08em; margin-bottom: 20px; }
.footer-col ul li { margin-bottom: 12px; }
.footer-col ul a { font-size: 0.9375rem; transition: color var(--transition); }
.footer-col ul a:hover { color: var(--white); }
.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 24px 0;
  font-size: 0.875rem;
  flex-wrap: wrap;
  gap: 12px;
}
.footer-bottom-links { display: flex; gap: 24px; }
.footer-bottom-links a:hover { color: var(--white); }

/* Utility */
.text-center { text-align: center; }
.mt-48 { margin-top: 48px; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); border: 0; }