:root {
  --background: #f8fafc;
  --surface: #ffffff;
  --muted-surface: #eef2f7;
  --text: #0f172a;
  --muted-text: #546173;
  --border: #dce3ec;
  --primary: #0f172a;
  --accent: #14b8a6;
  --accent-dark: #0f9487;
  --success-bg: #ecfdf5;
  --success-text: #166534;
  --danger-bg: #fef2f2;
  --danger-text: #b91c1c;
  --radius: 20px;
  --shadow: 0 20px 40px rgba(15, 23, 42, 0.08);
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--background);
  color: var(--text);
  font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  line-height: 1.65;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
.container { width: min(1180px, calc(100% - 32px)); margin: 0 auto; }
.narrow { width: min(800px, 100%); }
.center { text-align: center; }
.center-block { text-align: center; }
.wrap { display: flex; flex-wrap: wrap; }
.gap-sm { gap: 12px; }

.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
}
.header-row {
  min-height: 82px;
  display: flex; align-items: center; justify-content: space-between; gap: 20px;
}
.brand { font-size: 1.6rem; font-weight: 800; letter-spacing: -0.03em; }
.nav { display: flex; flex-wrap: wrap; gap: 22px; align-items: center; }
.header-actions { display:flex; align-items:center; gap:12px; }
.mobile-menu { display:none; position:relative; }
.mobile-menu summary { list-style:none; }
.mobile-menu summary::-webkit-details-marker { display:none; }
.mobile-menu-toggle { display:inline-flex; align-items:center; justify-content:center; min-width:88px; padding:12px 16px; border:1px solid var(--border); border-radius:14px; background:#fff; font-weight:700; cursor:pointer; }
.mobile-menu-panel { position:absolute; right:0; top:calc(100% + 10px); width:min(320px, calc(100vw - 32px)); background:#fff; border:1px solid var(--border); box-shadow:var(--shadow); border-radius:18px; padding:14px; display:grid; gap:10px; }
.mobile-menu-link { display:block; padding:12px 14px; border-radius:12px; color:var(--text); font-weight:700; }
.mobile-menu-link.is-active, .mobile-menu-link:hover { background:var(--muted-surface); color:var(--accent-dark); }
.nav-link { color: var(--muted-text); font-weight: 600; font-size: .95rem; }
.nav-link:hover, .nav-link.is-active { color: var(--accent); }
.header-cta { white-space: nowrap; }

.hero, .page-hero {
  padding: 90px 0 72px;
  background: linear-gradient(135deg, #f8fafc 0%, #f8fafc 55%, #eef2f7 100%);
}
.hero h1, .page-hero h1, .cta-section h2 { font-size: clamp(2.5rem, 5vw, 4.5rem); line-height: 1.05; letter-spacing: -0.04em; margin: 0 0 18px; }
.page-hero.center h1 { font-size: clamp(2.3rem, 4.6vw, 4rem); }
.lead { font-size: 1.17rem; color: var(--muted-text); margin: 0 0 18px; }
.muted { color: var(--muted-text); }
.eyebrow {
  display: inline-block; margin-bottom: 14px; padding: 8px 12px;
  background: rgba(20,184,166,0.1); color: var(--accent-dark);
  border-radius: 999px; font-size: .85rem; font-weight: 700; letter-spacing: .02em;
}
.hero-image {
  width: 100%; border-radius: 28px; box-shadow: var(--shadow); min-height: 380px; object-fit: cover;
}
.grid-2 { display: grid; grid-template-columns: 1.1fr .9fr; gap: 42px; align-items: center; }
.button-row { display: flex; gap: 14px; flex-wrap: wrap; margin-top: 26px; }

.btn {
  display: inline-flex; align-items: center; justify-content: center;
  gap: 8px; padding: 14px 24px; border-radius: 14px; border: 1px solid transparent;
  font-weight: 700; transition: .2s ease; cursor: pointer;
}
.btn:hover { transform: translateY(-1px); }
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-dark); }
.btn-secondary { background: #fff; border-color: var(--border); color: var(--text); }
.btn-secondary:hover { background: var(--muted-surface); }
.btn.full { width: 100%; }
.text-link { color: var(--accent-dark); font-weight: 700; }
.text-link:hover { color: var(--accent); }

.section { padding: 84px 0; }
.section.alt, .filter-bar { background: var(--surface); }
.section-head { margin-bottom: 36px; }
.section-head h2 { font-size: clamp(2rem, 4vw, 3rem); margin: 0 0 12px; letter-spacing: -0.03em; }
.section-head p { color: var(--muted-text); margin: 0; font-size: 1.05rem; }
.section-action { margin-top: 28px; }

.card-grid { display: grid; gap: 24px; }
.card-grid.cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.card-grid.cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 28px; box-shadow: 0 6px 24px rgba(15,23,42,.04);
}
.card h3 { margin: 0 0 12px; font-size: 1.4rem; letter-spacing: -0.02em; }
.card p { margin: 0; color: var(--muted-text); }
.project-card, .service-card, .blog-card { display: flex; flex-direction: column; gap: 18px; }
.project-meta strong, .list-group strong { display: block; margin-bottom: 6px; color: var(--accent-dark); font-size: .86rem; letter-spacing: .03em; text-transform: uppercase; }
.project-meta p { margin: 0; }
.list-group ul { margin: 0; padding-left: 18px; color: var(--muted-text); }
.list-group li + li { margin-top: 8px; }
.blog-meta-top, .blog-footer { display: flex; justify-content: space-between; align-items: center; gap: 12px; flex-wrap: wrap; }
.badge {
  display: inline-flex; align-items: center; padding: 8px 10px; background: rgba(20,184,166,.08);
  color: var(--accent-dark); border-radius: 999px; font-size: .8rem; font-weight: 700;
}
.filter-bar { padding: 26px 0; border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.filter-chip {
  padding: 10px 16px; border-radius: 999px; background: var(--background); color: var(--muted-text);
  font-size: .95rem; font-weight: 700; border: 1px solid transparent;
}
.filter-chip.is-selected, .filter-chip:hover { background: var(--accent); color: #fff; }

.step-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 24px; }
.step-card { padding: 8px 8px 8px 0; }
.step-number { font-size: 4rem; font-weight: 800; line-height: 1; color: rgba(20,184,166,.18); margin-bottom: 10px; }
.timeline { display: grid; gap: 18px; }
.timeline-item {
  display: grid; grid-template-columns: 72px 1fr; gap: 18px; align-items: start;
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 24px;
}
.timeline-index { font-size: 2rem; font-weight: 800; color: rgba(20,184,166,.35); }

.cta-section {
  padding: 90px 0; background: var(--primary); color: #fff; margin-top: 24px;
}
.cta-section p { color: rgba(255,255,255,.84); font-size: 1.1rem; max-width: 760px; margin: 0 auto 28px; }

.form-card h2, .contact-aside h2 { margin-top: 0; }
.contact-grid { align-items: start; }
.contact-aside { display: grid; gap: 22px; }
.form-stack { display: grid; gap: 18px; }
.form-stack label { display: grid; gap: 8px; font-weight: 600; }
input, textarea, select {
  width: 100%; padding: 14px 16px; border: 1px solid var(--border); border-radius: 14px;
  background: #fff; color: var(--text); font: inherit;
}
textarea { resize: vertical; min-height: 140px; }
input:focus, textarea:focus, select:focus { outline: 2px solid rgba(20,184,166,.18); border-color: var(--accent); }
.hp-field { position: absolute; left: -9999px; opacity: 0; pointer-events: none; }
.alert { padding: 14px 16px; border-radius: 14px; font-weight: 600; margin-bottom: 16px; }
.alert-success { background: var(--success-bg); color: var(--success-text); }
.alert-error { background: var(--danger-bg); color: var(--danger-text); }
.error-text { color: var(--danger-text); font-size: .9rem; }

.faq-list { display: grid; gap: 18px; }
.faq-item {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 0 22px;
}
.faq-item summary {
  cursor: pointer; list-style: none; font-size: 1.1rem; font-weight: 700; padding: 22px 0;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item p { padding: 0 0 22px; color: var(--muted-text); margin: 0; }

.article p { margin: 0 0 18px; color: var(--muted-text); font-size: 1.05rem; }
.notice-box {
  margin: 28px 0; padding: 18px; border-left: 4px solid var(--accent); background: #f0fdfa; border-radius: 12px;
}
.empty-state { text-align: center; padding: 42px 0; color: var(--muted-text); }

.site-footer {
  margin-top: 36px; background: var(--primary); color: #fff; padding-top: 56px;
}
.footer-grid { display: grid; grid-template-columns: 1.2fr .8fr; gap: 36px; padding-bottom: 40px; }
.site-footer h2, .site-footer h3 { margin-top: 0; }
.footer-lead { color: rgba(255,255,255,.9); font-size: 1.12rem; }
.footer-muted { color: rgba(255,255,255,.68); }
.footer-links { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; }
.footer-links a, .footer-inline-links a { color: rgba(255,255,255,.72); }
.footer-links a:hover, .footer-inline-links a:hover { color: #fff; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.16); padding: 20px 0 32px;
  display: flex; justify-content: space-between; align-items: center; gap: 18px; flex-wrap: wrap;
}
.footer-inline-links { display: flex; gap: 18px; flex-wrap: wrap; }

@media (max-width: 1100px) {
  .desktop-nav, .desktop-cta { display: none; }
  .mobile-menu { display: block; }
  .grid-2, .footer-grid, .card-grid.cols-3, .step-grid { grid-template-columns: 1fr; }
  .card-grid.cols-2 { grid-template-columns: 1fr; }
}
@media (max-width: 720px) {
  .header-row { min-height: 74px; }
  .hero, .page-hero, .section, .cta-section { padding-top: 64px; padding-bottom: 64px; }
  .button-row { flex-direction: column; }
  .btn { width: 100%; }
  .timeline-item { grid-template-columns: 1fr; }
}

.hero-image { background:#e2e8f0; }
.notice-box { display:none; }