:root {
  --bg: #0a1119;
  --bg-2: #121a24;
  --surface: #131d29;
  --surface-2: #1a2633;
  --paper: #f3f5f7;
  --white: #ffffff;
  --ink: #101a25;
  --muted: #5f6d7d;
  --muted-dark: #a8b4c1;
  --line: rgba(255,255,255,.12);
  --line-light: #d6dde6;
  --accent: #cfd6df;
  --accent-2: #aab6c4;
  --accent-3: #7d8998;
  --success: #c7d1dc;
  --shadow: 0 20px 60px rgba(4, 10, 18, .20);
  --radius: 22px;
  --radius-sm: 14px;
  --max: 1180px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img, svg { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button, input, textarea, select { font: inherit; }
button { cursor: pointer; }
.container { width: min(calc(100% - 40px), var(--max)); margin: 0 auto; }
.narrow { width: min(calc(100% - 40px), 840px); margin: 0 auto; }
.section { padding: 92px 0; }
.section-sm { padding: 64px 0; }
.section-dark { background: var(--bg); color: var(--white); }
.section-tint { background: #edf4fb; }
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  text-transform: uppercase;
  letter-spacing: .14em;
  font-size: .75rem;
  font-weight: 800;
  color: #667788;
  margin-bottom: 14px;
}
.section-dark .eyebrow { color: var(--accent); }
.eyebrow::before { content: ""; width: 26px; height: 2px; background: currentColor; }
h1, h2, h3, h4 { line-height: 1.08; margin: 0 0 16px; letter-spacing: -.035em; }
h1 { font-size: clamp(2.8rem, 6vw, 5.6rem); }
h2 { font-size: clamp(2.15rem, 4vw, 3.65rem); }
h3 { font-size: 1.35rem; }
p { margin: 0 0 18px; }
.lead { font-size: clamp(1.08rem, 2vw, 1.28rem); color: var(--muted); max-width: 760px; }
.section-dark .lead { color: var(--muted-dark); }
.text-center { text-align: center; }
.text-center .lead { margin-left: auto; margin-right: auto; }

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(18px);
  background: rgba(7,17,31,.84);
  border-bottom: 1px solid var(--line);
}
.nav-wrap { height: 76px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.brand { display: flex; align-items: center; gap: 12px; color: white; font-weight: 850; letter-spacing: .08em; }
.brand-mark { width: 38px; height: 38px; display: grid; place-items: center; border-radius: 11px; background: linear-gradient(135deg, #8e9cad, #d7dde4); color: #0a1119; font-weight: 950; letter-spacing: -.05em; box-shadow: 0 10px 30px rgba(196,205,216,.18); }
.nav-links { display: flex; align-items: center; gap: 26px; color: #dce8f6; font-size: .94rem; }
.nav-links a:hover, .nav-links a.active { color: white; }
.nav-cta { padding: 11px 16px; border-radius: 999px; background: linear-gradient(135deg, #d6dde5, #a8b4c2); color: var(--bg)!important; font-weight: 800; box-shadow: 0 10px 24px rgba(170,182,196,.18); }
.menu-button { display: none; border: 0; background: transparent; color: white; padding: 8px; }
.menu-button span { display: block; width: 25px; height: 2px; background: currentColor; margin: 5px 0; }

/* Buttons */
.actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 30px; }
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 9px; min-height: 50px; padding: 0 20px; border-radius: 12px; border: 1px solid transparent; font-weight: 800; transition: .2s ease; }
.btn-primary { background: linear-gradient(135deg, #dbe2e8, #a8b5c3); color: #07111b; box-shadow: 0 12px 30px rgba(168,181,195,.22); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 16px 38px rgba(168,181,195,.28); }
.btn-secondary { background: rgba(255,255,255,.06); color: #eef4fb; border-color: rgba(217,226,236,.22); }
.btn-secondary:hover { background: rgba(255,255,255,.12); }
.btn-dark { background: var(--bg); color: white; }
.btn-light { background: white; color: var(--bg); }

/* Hero */
.hero { position: relative; overflow: hidden; background: var(--bg); color: white; padding: 92px 0 70px; }
.hero::before {
  content: ""; position: absolute; inset: -30% auto auto 40%; width: 760px; height: 760px; border-radius: 50%;
  background: radial-gradient(circle, rgba(207,214,223,.18), rgba(125,137,152,.10) 42%, transparent 68%);
  pointer-events: none;
}
.hero-grid { position: relative; display: grid; grid-template-columns: 1.15fr .85fr; gap: 64px; align-items: center; }
.hero-copy h1 span { color: var(--accent); }
.hero-copy p { color: #b8c8da; font-size: 1.18rem; max-width: 710px; }
.hero-badges { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 28px; }
.hero-badges span { border: 1px solid rgba(255,255,255,.13); background: rgba(255,255,255,.055); padding: 8px 12px; border-radius: 999px; color: #c8d6e7; font-size: .86rem; }
.hero-visual { position: relative; min-height: 470px; }
.orbit-card { position: absolute; inset: 20px 0 auto auto; width: min(100%, 470px); aspect-ratio: 1/1; border: 1px solid rgba(255,255,255,.11); border-radius: 36px; background: linear-gradient(160deg, rgba(255,255,255,.08), rgba(255,255,255,.02)); box-shadow: var(--shadow); overflow: hidden; }
.orbit-card::before, .orbit-card::after { content: ""; position: absolute; border: 1px solid rgba(207,214,223,.18); border-radius: 50%; }
.orbit-card::before { width: 330px; height: 330px; left: 66px; top: 66px; }
.orbit-card::after { width: 220px; height: 220px; left: 121px; top: 121px; }
.orbit-center { position: absolute; left: 50%; top: 50%; transform: translate(-50%,-50%); width: 116px; height: 116px; display: grid; place-items: center; border-radius: 30px; background: linear-gradient(135deg, #9aa7b8, #d8dfe6); color: #07111b; font-size: 1.35rem; font-weight: 950; box-shadow: 0 18px 60px rgba(168,181,195,.28); }
.node { position: absolute; display: grid; place-items: center; min-width: 112px; padding: 12px 14px; border-radius: 14px; background: #12243a; border: 1px solid rgba(255,255,255,.13); color: white; font-weight: 750; font-size: .86rem; box-shadow: 0 12px 28px rgba(0,0,0,.2); }
.node.n1 { left: 18px; top: 82px; }.node.n2 { right: 18px; top: 80px; }.node.n3 { left: 18px; bottom: 82px; }.node.n4 { right: 18px; bottom: 82px; }
.stat-strip { border-top: 1px solid var(--line); background: #081523; color: #c6d4e5; }
.stat-strip .container { display: grid; grid-template-columns: repeat(4,1fr); }
.stat-item { padding: 22px 18px; border-right: 1px solid var(--line); text-align: center; font-size: .84rem; letter-spacing: .08em; text-transform: uppercase; font-weight: 750; }
.stat-item:first-child { border-left: 1px solid var(--line); }

/* Cards */
.grid-2 { display: grid; grid-template-columns: repeat(2,1fr); gap: 24px; }
.grid-3 { display: grid; grid-template-columns: repeat(3,1fr); gap: 24px; }
.grid-4 { display: grid; grid-template-columns: repeat(4,1fr); gap: 20px; }
.card { background: white; border: 1px solid var(--line-light); border-radius: var(--radius); padding: 30px; box-shadow: 0 12px 38px rgba(16,45,78,.06); }
.card-dark { background: var(--surface); color: white; border-color: rgba(255,255,255,.08); }
.card .icon { width: 48px; height: 48px; display: grid; place-items: center; margin-bottom: 24px; border-radius: 14px; background: #edf1f4; color: #55667c; font-weight: 900; font-size: 1.15rem; }
.card-dark .icon { background: rgba(207,214,223,.12); color: var(--accent); }
.card p { color: var(--muted); }
.card-dark p { color: var(--muted-dark); }
.card ul, .check-list { padding: 0; margin: 18px 0 0; list-style: none; }
.card li, .check-list li { position: relative; padding-left: 24px; margin: 9px 0; color: inherit; }
.card li::before, .check-list li::before { content: "✓"; position: absolute; left: 0; top: 0; color: #65778f; font-weight: 900; }
.card-link { display: inline-flex; align-items: center; gap: 7px; margin-top: 22px; color: #5f738d; font-weight: 800; }
.card-link::after { content: "→"; transition: transform .2s ease; }.card-link:hover::after { transform: translateX(4px); }

/* Split sections */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: center; }
.panel { border-radius: 28px; padding: 42px; background: var(--bg); color: white; box-shadow: var(--shadow); }
.panel p { color: var(--muted-dark); }
.process { display: grid; gap: 16px; }
.process-step { display: grid; grid-template-columns: 48px 1fr; gap: 16px; padding: 18px 0; border-bottom: 1px solid var(--line-light); }
.process-step:last-child { border-bottom: 0; }
.process-num { width: 42px; height: 42px; border-radius: 50%; display: grid; place-items: center; background: #edf1f4; color: #55667c; font-weight: 900; }
.process-step p { margin: 0; color: var(--muted); }

/* Calculator */
.calculator { display: grid; grid-template-columns: 1fr 1fr; gap: 30px; border-radius: 30px; background: white; border: 1px solid var(--line-light); box-shadow: var(--shadow); overflow: hidden; }
.calc-form { padding: 38px; }
.form-row { margin-bottom: 18px; }
label { display: block; font-weight: 800; font-size: .9rem; margin-bottom: 7px; }
input, textarea, select { width: 100%; border: 1px solid #cbd7e4; border-radius: 12px; background: white; padding: 13px 14px; color: var(--ink); outline: none; transition: .2s; }
input:focus, textarea:focus, select:focus { border-color: #aab6c4; box-shadow: 0 0 0 4px rgba(170,182,196,.18); }
textarea { min-height: 150px; resize: vertical; }
.calc-result { padding: 40px; background: var(--bg); color: white; display: flex; flex-direction: column; justify-content: center; }
.calc-result .big-number { font-size: clamp(2.4rem, 5vw, 4rem); font-weight: 900; color: #d8e0e7; letter-spacing: -.05em; margin: 8px 0 4px; }
.calc-result p { color: var(--muted-dark); }

/* Page hero */
.page-hero { padding: 78px 0 64px; background: var(--bg); color: white; border-bottom: 1px solid var(--line); }
.page-hero .lead { color: #b6c5d7; }
.page-hero h1 { font-size: clamp(2.7rem, 5vw, 4.7rem); max-width: 900px; }
.breadcrumb { color: #8da2ba; font-size: .88rem; margin-bottom: 20px; }.breadcrumb a { color: #cfd6df; }

/* Contact */
.contact-grid { display: grid; grid-template-columns: .75fr 1.25fr; gap: 42px; align-items: start; }
.contact-card { background: var(--bg); color: white; padding: 34px; border-radius: 24px; position: sticky; top: 105px; }
.contact-card p { color: var(--muted-dark); }
.contact-detail { padding: 18px 0; border-top: 1px solid var(--line); }
.contact-detail strong { display: block; color: #d7dfe6; margin-bottom: 4px; }
.form-note { font-size: .82rem; color: var(--muted); margin-top: 10px; }
.alert { display: none; padding: 12px 14px; margin-top: 14px; border-radius: 10px; background: #e8f8f1; color: #176745; font-weight: 700; }

/* CTA */
.cta-band { position: relative; overflow: hidden; border-radius: 32px; padding: 56px; background: linear-gradient(135deg, #0b1a2b, #102a41); color: white; }
.cta-band::after { content:""; position:absolute; width:360px; height:360px; border-radius:50%; right:-120px; top:-140px; background:radial-gradient(circle, rgba(207,214,223,.20), transparent 70%); }
.cta-band > * { position: relative; z-index: 1; }
.cta-band p { color: #b8c8da; max-width: 720px; }

/* Footer */
.site-footer { background: #050c15; color: #cfdbeb; padding: 58px 0 28px; }
.footer-grid { display: grid; grid-template-columns: 1.4fr repeat(3,1fr); gap: 40px; }
.site-footer h4 { color: white; font-size: 1rem; letter-spacing: 0; }
.site-footer p, .site-footer a { color: #8fa2b9; font-size: .9rem; }
.site-footer a:hover { color: white; }
.footer-links { display: grid; gap: 8px; }
.footer-bottom { margin-top: 42px; padding-top: 22px; border-top: 1px solid var(--line); display: flex; justify-content: space-between; gap: 20px; align-items: center; font-size: .82rem; color: #7f93ab; }

/* Utility */
.mt-0 { margin-top: 0; }.mt-2 { margin-top: 16px; }.mt-4 { margin-top: 32px; }.mt-6 { margin-top: 48px; }
.kicker { font-weight: 800; color: #5f738d; }
.tag { display: inline-flex; padding: 7px 10px; border-radius: 999px; background: #edf1f4; color: #56677b; font-size: .8rem; font-weight: 800; }
.quote { border-left: 4px solid #cfd6df; padding-left: 20px; font-size: 1.15rem; color: #c7d4e5; }
.notice { background: #f0f2f5; color: #516173; border: 1px solid #d6dde6; border-radius: 12px; padding: 12px 14px; font-size: .88rem; }

@media (max-width: 980px) {
  .nav-links { position: fixed; inset: 76px 0 auto; padding: 24px 20px 30px; display: none; flex-direction: column; align-items: stretch; gap: 10px; background: #07111f; border-bottom: 1px solid var(--line); }
  .nav-links.open { display: flex; }
  .nav-links a { padding: 10px 0; }
  .nav-cta { text-align: center; margin-top: 8px; }
  .menu-button { display: block; }
  .hero-grid, .split, .calculator, .contact-grid { grid-template-columns: 1fr; }
  .hero-visual { min-height: 430px; }
  .orbit-card { left: 50%; right: auto; transform: translateX(-50%); }
  .grid-4 { grid-template-columns: repeat(2,1fr); }
  .grid-3 { grid-template-columns: repeat(2,1fr); }
  .footer-grid { grid-template-columns: 1.5fr 1fr 1fr; }
  .footer-grid > :last-child { grid-column: 2 / 4; }
  .contact-card { position: static; }
}

@media (max-width: 680px) {
  .container, .narrow { width: min(calc(100% - 28px), var(--max)); }
  .section { padding: 68px 0; }
  .hero { padding-top: 66px; }
  .hero-grid { gap: 38px; }
  .hero-visual { min-height: 350px; }
  .orbit-card { width: 350px; max-width: 100%; border-radius: 26px; }
  .orbit-card::before { width: 250px; height: 250px; left: 49px; top: 49px; }
  .orbit-card::after { width: 165px; height: 165px; left: 92px; top: 92px; }
  .orbit-center { width: 92px; height: 92px; border-radius: 24px; font-size: 1rem; }
  .node { min-width: 90px; font-size: .73rem; padding: 9px 10px; }
  .node.n1 { left: 10px; top: 55px; }.node.n2 { right: 10px; top: 55px; }.node.n3 { left: 10px; bottom: 55px; }.node.n4 { right: 10px; bottom: 55px; }
  .stat-strip .container { grid-template-columns: repeat(2,1fr); }
  .stat-item:nth-child(3) { border-left: 1px solid var(--line); }
  .stat-item { border-bottom: 1px solid var(--line); }
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .card, .calc-form, .calc-result, .panel { padding: 26px; }
  .cta-band { padding: 36px 26px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-grid > :first-child, .footer-grid > :last-child { grid-column: 1 / -1; }
  .footer-bottom { flex-direction: column; align-items: flex-start; }
}


.hero-copy h1 { max-width: 12ch; }
.card, .calculator, .cta-band, .panel, .contact-card { backdrop-filter: blur(6px); }
.card:hover { transform: translateY(-3px); transition: transform .2s ease, box-shadow .2s ease; box-shadow: 0 18px 42px rgba(14,24,35,.10); }
.site-header { box-shadow: 0 8px 30px rgba(3,8,15,.10); }
.hero-badges span, .tag, .nav-cta, .btn, .card, .panel, .cta-band, .contact-card, .orbit-card, .calculator { transition: all .2s ease; }
.section-tint { background: #eaedf1; }
.page-hero { background: linear-gradient(180deg, #0a1119 0%, #111b27 100%); }
.hero, .section-dark { background-image: linear-gradient(180deg, rgba(255,255,255,.015), rgba(255,255,255,0)); }
