/* ===== Design tokens ===== */
:root {
  --navy-900: #0b1f3a;
  --navy-800: #0f2a4d;
  --navy-700: #163a66;
  --blue-500: #2f6df0;
  --blue-400: #4f8bff;
  --cyan-400: #36d6c3;
  --ink: #0d1b2a;
  --slate-600: #475569;
  --slate-400: #94a3b8;
  --bg: #ffffff;
  --bg-alt: #f5f8fc;
  --line: #e2e8f0;
  --radius: 16px;
  --radius-sm: 10px;
  --shadow: 0 10px 30px rgba(11, 31, 58, 0.08);
  --shadow-lg: 0 24px 60px rgba(11, 31, 58, 0.18);
  --maxw: 1140px;
  --font: "Inter", system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  --font-head: "Sora", var(--font);
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font);
  color: var(--ink);
  background: var(--bg);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }

.container { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 22px; }

h1, h2, h3, h4 { font-family: var(--font-head); line-height: 1.15; letter-spacing: -0.02em; }

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--blue-500);
  margin-bottom: 14px;
}
.eyebrow.light { color: var(--cyan-400); }

.grad {
  background: linear-gradient(100deg, var(--blue-400), var(--cyan-400));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-weight: 600;
  font-size: 0.98rem;
  padding: 13px 24px;
  border-radius: 999px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.2s ease, background 0.2s ease;
  white-space: nowrap;
}
.btn:hover { transform: translateY(-2px); }
.btn-primary {
  background: linear-gradient(100deg, var(--blue-500), var(--blue-400));
  color: #fff;
  box-shadow: 0 8px 22px rgba(47, 109, 240, 0.35);
}
.btn-ghost { background: transparent; border-color: rgba(255,255,255,0.4); color: #fff; }
.btn-ghost:hover { background: rgba(255,255,255,0.1); }
.btn-sm { padding: 9px 18px; font-size: 0.9rem; }
.btn-block { width: 100%; }

/* ===== Header ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--line);
}
.nav-wrap { display: flex; align-items: center; justify-content: space-between; height: 70px; }
.brand { display: flex; align-items: center; gap: 10px; font-family: var(--font-head); font-weight: 800; }
.brand-mark {
  display: grid; place-items: center;
  width: 38px; height: 38px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--navy-800), var(--blue-500));
  color: #fff; font-size: 0.95rem; letter-spacing: -0.03em;
}
.brand-text { font-size: 1.15rem; color: var(--ink); }
.brand-text span { color: var(--blue-500); }
.nav { display: flex; align-items: center; gap: 26px; }
.nav a { font-weight: 500; color: var(--slate-600); transition: color 0.2s; }
.nav a:hover { color: var(--ink); }
.nav .nav-cta { color: #fff; }

.nav-toggle { display: none; flex-direction: column; gap: 5px; background: none; border: none; cursor: pointer; padding: 8px; }
.nav-toggle span { width: 24px; height: 2px; background: var(--ink); border-radius: 2px; transition: 0.25s; }

/* ===== Hero ===== */
.hero { position: relative; overflow: hidden; color: #fff; padding: 110px 0 90px; }
.hero-bg {
  position: absolute; inset: 0; z-index: -1;
  background:
    radial-gradient(900px 500px at 85% -10%, rgba(54, 214, 195, 0.25), transparent 60%),
    radial-gradient(700px 500px at 10% 110%, rgba(47, 109, 240, 0.35), transparent 55%),
    linear-gradient(160deg, var(--navy-900), var(--navy-700));
}
.hero-inner { max-width: 820px; }
.hero h1 { font-size: clamp(2.2rem, 5.4vw, 3.8rem); font-weight: 800; }
.hero-sub { margin: 22px 0 32px; font-size: 1.12rem; color: #cdd9ec; max-width: 640px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; }
.hero-stats { display: flex; flex-wrap: wrap; gap: 38px; margin-top: 56px; }
.hero-stats strong { display: block; font-family: var(--font-head); font-size: 1.7rem; color: #fff; }
.hero-stats span { color: var(--slate-400); font-size: 0.92rem; }

/* ===== Sections ===== */
.section { padding: 92px 0; }
.section-alt { background: var(--bg-alt); }
.section-dark { background: linear-gradient(160deg, var(--navy-900), var(--navy-700)); color: #fff; }
.section-head { max-width: 680px; margin: 0 auto 54px; text-align: center; }
.section-head h2 { font-size: clamp(1.8rem, 3.4vw, 2.5rem); }
.section-lead, .section-head .section-lead { margin-top: 14px; color: var(--slate-600); font-size: 1.05rem; }

/* ===== Service cards ===== */
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
.card {
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 32px 28px;
  box-shadow: var(--shadow);
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s;
}
.card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: transparent; }
.card-icon {
  width: 58px; height: 58px; border-radius: 14px;
  display: grid; place-items: center; font-size: 1.7rem;
  background: linear-gradient(135deg, rgba(47,109,240,0.12), rgba(54,214,195,0.12));
  margin-bottom: 20px;
}
.card h3 { font-size: 1.22rem; margin-bottom: 12px; }
.card p { color: var(--slate-600); font-size: 0.98rem; }
.card-list { list-style: none; margin-top: 18px; display: grid; gap: 9px; }
.card-list li { position: relative; padding-left: 26px; font-size: 0.92rem; color: var(--ink); }
.card-list li::before {
  content: "✓"; position: absolute; left: 0; top: 0;
  color: var(--blue-500); font-weight: 700;
}

/* ===== About ===== */
.about-grid { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 56px; align-items: center; }
.about-grid h2 { font-size: clamp(1.7rem, 3.2vw, 2.3rem); margin-bottom: 18px; }
.about-grid p { color: var(--slate-600); margin-bottom: 16px; }
.about-points { display: grid; gap: 18px; margin-top: 26px; }
.point { display: flex; gap: 14px; align-items: flex-start; }
.point span { font-size: 1.4rem; }
.point strong { display: block; font-family: var(--font-head); }
.point p { margin: 2px 0 0; font-size: 0.92rem; }

.about-panel { display: grid; }
.panel-card {
  background: linear-gradient(160deg, var(--navy-800), var(--navy-700));
  color: #fff; border-radius: var(--radius); padding: 30px; box-shadow: var(--shadow-lg);
}
.panel-row { display: flex; align-items: center; gap: 12px; padding: 12px 0; border-bottom: 1px solid rgba(255,255,255,0.08); font-size: 0.95rem; }
.dot { width: 10px; height: 10px; border-radius: 50%; }
.dot-green { background: #34d399; } .dot-blue { background: var(--blue-400); } .dot-amber { background: #fbbf24; }
.panel-bar { margin-top: 22px; height: 8px; border-radius: 999px; background: rgba(255,255,255,0.12); overflow: hidden; }
.panel-bar i { display: block; height: 100%; background: linear-gradient(90deg, var(--blue-400), var(--cyan-400)); }
.panel-meta { margin-top: 12px; font-size: 0.82rem; color: var(--slate-400); }

/* ===== Why grid ===== */
.why-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.why-item { padding: 28px 24px; border-radius: var(--radius); background: var(--bg-alt); border: 1px solid var(--line); }
.why-item h3 { font-size: 1.1rem; margin-bottom: 10px; }
.why-item p { color: var(--slate-600); font-size: 0.94rem; }

/* ===== Contact ===== */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: start; }
.contact-grid h2 { font-size: clamp(1.8rem, 3.2vw, 2.4rem); margin-bottom: 16px; }
.contact-lead { color: #cdd9ec; margin-bottom: 30px; }
.contact-list { list-style: none; display: grid; gap: 22px; }
.contact-list li { display: flex; gap: 16px; align-items: flex-start; }
.ci { font-size: 1.3rem; }
.contact-list strong { display: block; font-family: var(--font-head); font-size: 0.95rem; }
.contact-list a { color: #cdd9ec; transition: color 0.2s; }
.contact-list a:hover { color: #fff; }

.contact-form { background: #fff; border-radius: var(--radius); padding: 30px; box-shadow: var(--shadow-lg); }
.field { margin-bottom: 18px; }
.field label { display: block; font-size: 0.85rem; font-weight: 600; color: var(--slate-600); margin-bottom: 7px; }
.field input, .field textarea {
  width: 100%; padding: 12px 14px; border: 1px solid var(--line);
  border-radius: var(--radius-sm); font-family: var(--font); font-size: 0.96rem;
  color: var(--ink); transition: border-color 0.2s, box-shadow 0.2s;
}
.field input:focus, .field textarea:focus {
  outline: none; border-color: var(--blue-400);
  box-shadow: 0 0 0 3px rgba(79, 139, 255, 0.18);
}
.field textarea { resize: vertical; }
.form-note { margin-top: 14px; font-size: 0.9rem; min-height: 1.2em; }
.form-note.ok { color: #16a34a; }
.form-note.err { color: #dc2626; }

/* ===== Footer ===== */
.site-footer { background: var(--ink); color: #cbd5e1; padding: 60px 0 28px; }
.footer-inner { display: grid; grid-template-columns: 1.3fr 2fr; gap: 48px; }
.footer-brand .brand-mark { margin-bottom: 14px; }
.footer-brand .brand-text { color: #fff; font-size: 1.2rem; font-family: var(--font-head); font-weight: 800; }
.footer-brand .brand-text span { color: var(--blue-400); }
.footer-brand p { margin-top: 14px; font-size: 0.92rem; max-width: 320px; color: var(--slate-400); }
.footer-cols { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.footer-cols h4 { color: #fff; font-size: 0.95rem; margin-bottom: 14px; }
.footer-cols a { display: block; color: var(--slate-400); font-size: 0.92rem; padding: 5px 0; transition: color 0.2s; }
.footer-cols a:hover { color: #fff; }
.footer-bottom {
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: 8px;
  margin-top: 44px; padding-top: 24px; border-top: 1px solid rgba(255,255,255,0.1);
  font-size: 0.85rem; color: var(--slate-400);
}

/* ===== Reveal animation ===== */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity 0.6s ease, transform 0.6s ease; }
.reveal.in { opacity: 1; transform: none; }

/* ===== Responsive ===== */
@media (max-width: 900px) {
  .cards { grid-template-columns: 1fr; }
  .about-grid, .contact-grid { grid-template-columns: 1fr; gap: 40px; }
  .why-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-inner { grid-template-columns: 1fr; gap: 32px; }
}
@media (max-width: 720px) {
  .nav {
    position: fixed; top: 70px; right: 0; left: 0;
    flex-direction: column; align-items: stretch; gap: 0;
    background: #fff; border-bottom: 1px solid var(--line);
    padding: 10px 22px 20px; transform: translateY(-150%);
    transition: transform 0.3s ease; box-shadow: var(--shadow);
  }
  .nav.open { transform: translateY(0); }
  .nav a { padding: 13px 0; border-bottom: 1px solid var(--line); }
  .nav .nav-cta { margin-top: 12px; border-bottom: none; }
  .nav-toggle { display: flex; }
  .nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  .nav-toggle.open span:nth-child(2) { opacity: 0; }
  .nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
}
@media (max-width: 480px) {
  .why-grid { grid-template-columns: 1fr; }
  .hero-stats { gap: 24px; }
  .footer-bottom { flex-direction: column; }
}