:root {
  --black: #0a0a0a;
  --white: #ffffff;
  --gray-100: #f5f5f5;
  --gray-200: #e8e8e8;
  --gray-400: #999;
  --gray-600: #555;
  --gold: #C9A84C;
  --font-serif: 'Playfair Display', Georgia, serif;
  --font-sans: 'Inter', system-ui, sans-serif;
  --max-w: 1100px;
  --radius: 12px;
  --transition: 0.3s ease;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { font-family: var(--font-sans); background: var(--white); color: var(--black); line-height: 1.6; overflow-x: hidden; }
img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
.container { max-width: var(--max-w); margin: 0 auto; padding: 0 24px; }
.section-label { display: inline-block; font-size: 0.75rem; font-weight: 600; letter-spacing: 0.15em; text-transform: uppercase; color: var(--gold); margin-bottom: 16px; }
.section-header { text-align: center; max-width: 680px; margin: 0 auto 64px; }
.section-header h2 { font-family: var(--font-serif); font-size: clamp(2rem, 4vw, 3rem); line-height: 1.15; margin-bottom: 20px; }
.section-header p { color: var(--gray-600); font-size: 1.05rem; }
.btn-primary { display: inline-flex; align-items: center; gap: 8px; background: var(--black); color: var(--white); padding: 14px 28px; border-radius: 8px; font-size: 0.95rem; font-weight: 500; transition: all var(--transition); border: 2px solid var(--black); cursor: pointer; font-family: var(--font-sans); }
.btn-primary:hover { background: var(--gold); border-color: var(--gold); color: var(--black); }
.btn-ghost { display: inline-flex; align-items: center; gap: 8px; background: transparent; color: var(--black); padding: 14px 28px; border-radius: 8px; font-size: 0.95rem; font-weight: 500; transition: all var(--transition); border: 2px solid var(--gray-200); cursor: pointer; font-family: var(--font-sans); }
.btn-ghost:hover { border-color: var(--black); }
.btn-primary.full-width { width: 100%; justify-content: center; }
.navbar { position: fixed; top: 0; left: 0; right: 0; z-index: 100; background: rgba(255,255,255,0.96); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px); border-bottom: 1px solid transparent; transition: border-color var(--transition), box-shadow var(--transition); }
.navbar.scrolled { border-color: var(--gray-200); box-shadow: 0 2px 20px rgba(0,0,0,0.06); }
.nav-container { max-width: var(--max-w); margin: 0 auto; padding: 0 24px; height: 72px; display: flex; align-items: center; justify-content: space-between; }
.nav-logo { display: flex; align-items: center; gap: 10px; font-family: var(--font-serif); font-size: 1.3rem; font-weight: 600; }
.nav-logo svg { flex-shrink: 0; }
.nav-links { display: flex; align-items: center; gap: 36px; }
.nav-links a { font-size: 0.9rem; font-weight: 500; color: var(--gray-600); transition: color var(--transition); }
.nav-links a:hover { color: var(--black); }
.nav-links .nav-cta { background: var(--black); color: var(--white); padding: 10px 20px; border-radius: 8px; transition: all var(--transition); }
.nav-links .nav-cta:hover { background: var(--gold); color: var(--black); }
.nav-right { display: flex; align-items: center; gap: 16px; }
.lang-toggle { background: none; border: 1px solid var(--gray-200); border-radius: 6px; padding: 6px 12px; font-size: 0.8rem; font-weight: 500; cursor: pointer; color: var(--gray-600); transition: all var(--transition); font-family: var(--font-sans); letter-spacing: 0.05em; }
.lang-toggle:hover { border-color: var(--black); color: var(--black); }
.nav-burger { display: none; flex-direction: column; gap: 5px; background: none; border: none; cursor: pointer; padding: 4px; }
.nav-burger span { display: block; width: 24px; height: 2px; background: var(--black); border-radius: 2px; transition: all var(--transition); }
.nav-burger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-burger.open span:nth-child(2) { opacity: 0; }
.nav-burger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
.hero { min-height: 100vh; max-width: var(--max-w); margin: 0 auto; padding: 120px 24px 80px; display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.hero-badge { display: inline-block; background: var(--gray-100); border: 1px solid var(--gray-200); padding: 6px 14px; border-radius: 20px; font-size: 0.8rem; font-weight: 500; color: var(--gray-600); margin-bottom: 24px; }
.hero-content h1 { font-family: var(--font-serif); font-size: clamp(2.8rem, 5vw, 4.2rem); line-height: 1.1; margin-bottom: 24px; }
.hero-content p { font-size: 1.1rem; color: var(--gray-600); max-width: 480px; margin-bottom: 40px; line-height: 1.7; }
.hero-cta { display: flex; gap: 16px; flex-wrap: wrap; }
.hero-visual { display: flex; justify-content: center; align-items: center; }
.data-flow { position: relative; width: 360px; height: 360px; display: flex; align-items: center; justify-content: center; }
.data-node { position: absolute; background: var(--white); border: 1.5px solid var(--gray-200); padding: 10px 16px; border-radius: 10px; font-size: 0.8rem; font-weight: 500; color: var(--black); box-shadow: 0 4px 16px rgba(0,0,0,0.06); }
.node-pos { top: 20px; left: 10px; animation: float 3s ease-in-out infinite; }
.node-delivery { top: 20px; right: 10px; animation: float 3s ease-in-out infinite 0.6s; }
.node-reviews { bottom: 90px; left: 10px; animation: float 3s ease-in-out infinite 1.2s; }
.data-center { background: var(--black); color: var(--white); width: 100px; height: 100px; border-radius: 50%; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 6px; font-size: 0.75rem; font-weight: 600; box-shadow: 0 0 0 12px rgba(201,168,76,0.12), 0 0 0 24px rgba(201,168,76,0.06); z-index: 2; position: relative; }
.data-output { position: absolute; right: 0; bottom: 20px; display: flex; flex-direction: column; gap: 8px; }
.output-item { background: var(--gold); color: var(--black); padding: 8px 14px; border-radius: 8px; font-size: 0.78rem; font-weight: 600; }
@keyframes float { 0%,100%{transform:translateY(0)} 50%{transform:translateY(-8px)} }
.services { padding: 100px 0; background: var(--gray-100); }
.services-grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr; gap: 24px; align-items: start; }
.service-card { background: var(--white); border-radius: var(--radius); padding: 40px 32px; border: 1px solid var(--gray-200); transition: all var(--transition); }
.service-card:hover { transform: translateY(-4px); box-shadow: 0 20px 60px rgba(0,0,0,0.08); }
.service-card.featured { background: var(--black); color: var(--white); border-color: var(--black); }
.service-icon { font-size: 2rem; margin-bottom: 20px; }
.service-card h3 { font-family: var(--font-serif); font-size: 1.5rem; margin-bottom: 16px; }
.service-card p { font-size: 0.95rem; line-height: 1.7; margin-bottom: 24px; color: var(--gray-600); }
.service-card.featured p { color: rgba(255,255,255,0.7); }
.service-card ul { display: flex; flex-direction: column; gap: 12px; }
.service-card ul li { font-size: 0.85rem; color: rgba(255,255,255,0.75); padding-left: 20px; position: relative; line-height: 1.5; }
.service-card ul li::before { content: '->'; position: absolute; left: 0; color: var(--gold); font-weight: 700; }
.how-it-works { padding: 100px 0; }
.steps { display: flex; flex-direction: column; }
.step { display: grid; grid-template-columns: 120px 1fr; gap: 48px; align-items: start; padding: 56px 0; border-bottom: 1px solid var(--gray-200); }
.step:last-child { border-bottom: none; }
.step-number { font-family: var(--font-serif); font-size: 4rem; font-weight: 700; color: var(--gray-200); line-height: 1; transition: color var(--transition); }
.step:hover .step-number { color: var(--gold); }
.step-content h3 { font-family: var(--font-serif); font-size: 1.6rem; margin-bottom: 16px; margin-top: 8px; }
.step-content p { color: var(--gray-600); font-size: 1rem; max-width: 560px; line-height: 1.7; }
.about { padding: 100px 0; background: var(--black); color: var(--white); }
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 80px; align-items: center; }
.about-text .section-label { color: var(--gold); }
.about-text h2 { font-family: var(--font-serif); font-size: clamp(2rem,4vw,2.8rem); line-height: 1.2; margin-bottom: 24px; }
.about-text p { color: rgba(255,255,255,0.7); margin-bottom: 20px; font-size: 1rem; line-height: 1.8; }
.about-signature { margin-top: 40px; padding-top: 32px; border-top: 1px solid rgba(255,255,255,0.12); }
.signature-name { font-family: var(--font-serif); font-size: 1.2rem; margin-bottom: 4px; }
.signature-title { color: var(--gold); font-size: 0.85rem; font-weight: 500; }
.about-stats { display: flex; flex-direction: column; gap: 0; }
.stat { padding: 40px 0; border-bottom: 1px solid rgba(255,255,255,0.1); }
.stat:first-child { padding-top: 0; }
.stat:last-child { border-bottom: none; padding-bottom: 0; }
.stat-number { font-family: var(--font-serif); font-size: 3.5rem; font-weight: 700; color: var(--gold); line-height: 1; margin-bottom: 10px; }
.stat-label { color: rgba(255,255,255,0.6); font-size: 0.9rem; }
.contact { padding: 100px 0; }
.contact-grid { display: grid; grid-template-columns: 1fr 1.2fr; gap: 80px; align-items: start; }
.contact-left h2 { font-family: var(--font-serif); font-size: clamp(2rem,4vw,2.8rem); line-height: 1.2; margin-bottom: 20px; }
.contact-left p { color: var(--gray-600); margin-bottom: 40px; font-size: 1rem; }
.contact-info { display: flex; flex-direction: column; gap: 16px; }
.contact-link { display: flex; align-items: center; gap: 12px; font-size: 0.95rem; color: var(--gray-600); transition: color var(--transition); }
.contact-link:hover { color: var(--black); }
.contact-icon { width: 38px; height: 38px; background: var(--gray-100); border-radius: 8px; display: flex; align-items: center; justify-content: center; font-size: 1rem; flex-shrink: 0; }
.form-group { margin-bottom: 20px; }
.form-group label { display: block; font-size: 0.85rem; font-weight: 500; margin-bottom: 8px; }
.form-group input, .form-group textarea { width: 100%; padding: 14px 16px; border: 1.5px solid var(--gray-200); border-radius: 8px; font-size: 0.95rem; font-family: var(--font-sans); color: var(--black); background: var(--white); transition: border-color var(--transition); outline: none; -webkit-appearance: none; }
.form-group input:focus, .form-group textarea:focus { border-color: var(--black); }
.form-group textarea { resize: vertical; min-height: 120px; }
.form-success { margin-top: 16px; padding: 16px; border-radius: 8px; background: #f0fdf4; border: 1px solid #86efac; color: #166534; font-size: 0.9rem; font-weight: 500; }
.form-error { margin-top: 16px; padding: 16px; border-radius: 8px; background: #fef2f2; border: 1px solid #fca5a5; color: #991b1b; font-size: 0.9rem; }
.footer { background: var(--gray-100); border-top: 1px solid var(--gray-200); padding: 56px 0; }
.footer-inner { display: flex; align-items: flex-start; justify-content: space-between; gap: 40px; flex-wrap: wrap; }
.footer-brand { display: flex; flex-direction: column; gap: 12px; max-width: 280px; }
.footer-brand .nav-logo { font-size: 1.1rem; }
.footer-brand p { font-size: 0.85rem; color: var(--gray-600); line-height: 1.6; }
.footer-links { display: flex; gap: 28px; flex-wrap: wrap; align-items: center; }
.footer-links a { font-size: 0.85rem; color: var(--gray-600); transition: color var(--transition); }
.footer-links a:hover { color: var(--black); }
.footer-copy p { font-size: 0.8rem; color: var(--gray-400); }
.fade-in { opacity: 0; transform: translateY(24px); transition: opacity 0.6s ease, transform 0.6s ease; }
.fade-in.visible { opacity: 1; transform: translateY(0); }
@media (max-width: 960px) {
  .hero { grid-template-columns: 1fr; gap: 0; text-align: center; min-height: auto; padding-bottom: 60px; }
  .hero-content p { max-width: 100%; }
  .hero-cta { justify-content: center; }
  .hero-visual { display: none; }
  .services-grid { grid-template-columns: 1fr; max-width: 560px; margin: 0 auto; }
  .about-grid { grid-template-columns: 1fr; gap: 60px; }
  .contact-grid { grid-template-columns: 1fr; gap: 56px; }
  .step { grid-template-columns: 80px 1fr; gap: 24px; }
}
@media (max-width: 640px) {
  .nav-links { display: none; flex-direction: column; position: fixed; top: 72px; left: 0; right: 0; background: var(--white); padding: 24px; border-bottom: 1px solid var(--gray-200); gap: 20px; align-items: flex-start; box-shadow: 0 8px 24px rgba(0,0,0,0.06); }
  .nav-links.open { display: flex; }
  .nav-burger { display: flex; }
  .footer-inner { flex-direction: column; align-items: flex-start; }
  .footer-links { flex-direction: column; gap: 14px; }
  .section-header { margin-bottom: 48px; }
  .step { grid-template-columns: 1fr; gap: 12px; }
  .step-number { font-size: 2.5rem; }
  .step { padding: 40px 0; }
}