:root {
  --ink: #f0edf7;
  --body: #a49dbb;
  --faint: #6e6784;
  --paper: #14121b;
  --ground: #0b0a10;
  --card: #16131f;
  --line: rgba(240,237,247,.09);
  --violet: #8f6bff;
  --violet-deep: #7f54ff;
  --violet-soft: #241d38;
  --sky: #57c7ff;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0; color: var(--ink); background: var(--ground);
  font-family: "Roboto L", "Roboto", system-ui, -apple-system, sans-serif;
  font-size: 17px; line-height: 1.55; overflow-x: hidden;
}
body::before {
  content: ""; position: fixed; inset: 0; z-index: -1; pointer-events: none;
  background: radial-gradient(900px 550px at 80% 0, rgba(127,84,255,.25), transparent 65%),
              radial-gradient(720px 480px at 0 35%, rgba(87,199,255,.07), transparent 70%);
}
a { color: inherit; }
.wrap { width: min(1160px, calc(100% - 64px)); margin-inline: auto; }
.nav { position: fixed; top: 18px; left: 0; right: 0; z-index: 50; pointer-events: none; }
.nav__row { min-height:64px; margin-top:0; padding:0; display:flex; align-items:center; gap:22px; pointer-events:auto; }
.nav__logo { display:inline-flex; align-items:center; gap:10px; padding:9px 16px 9px 12px; color:var(--ink); text-decoration:none; font-weight:900; font-size:20px; letter-spacing:-.03em; border:1px solid rgba(255,255,255,.13); border-radius:999px; background:linear-gradient(115deg,rgba(39,36,49,.78),rgba(15,14,21,.68)); -webkit-backdrop-filter:blur(22px) saturate(145%); backdrop-filter:blur(22px) saturate(145%); box-shadow:inset 0 1px 0 rgba(255,255,255,.13),0 18px 50px rgba(0,0,0,.24); }
.nav__logo img { width:28px; height:auto; filter:brightness(0) invert(1); }
.nav__menu { margin-left:auto; display:flex; align-items:center; gap:20px; padding:7px 8px 7px 18px; border:1px solid rgba(255,255,255,.13); border-radius:999px; background:linear-gradient(115deg,rgba(39,36,49,.78),rgba(15,14,21,.68)); -webkit-backdrop-filter:blur(22px) saturate(145%); backdrop-filter:blur(22px) saturate(145%); box-shadow:inset 0 1px 0 rgba(255,255,255,.13),0 18px 50px rgba(0,0,0,.24); }
.nav__menu a { color:#c8c2d7; text-decoration:none; font-size:14px; }
.nav__menu a:hover, .nav__menu a[aria-current=page] { color:var(--ink); }
.nav__button { padding:10px 17px; color:#fff!important; border-radius:999px; background:linear-gradient(135deg,var(--violet),var(--violet-deep)); }
.btn {
  min-height: 50px; padding: 0 24px; border: 0; border-radius: 999px;
  display: inline-flex; align-items: center; justify-content: center; text-decoration: none;
  color: #fff; background: linear-gradient(135deg,var(--violet),var(--violet-deep));
  font: inherit; font-weight: 700; cursor: pointer; transition: transform .2s, box-shadow .2s;
}
.btn:hover { transform: translateY(-2px); box-shadow: 0 20px 44px -15px rgba(127,84,255,.7); }
.btn--ghost { color: var(--ink); background: rgba(240,237,247,.05); box-shadow: inset 0 0 0 1px var(--line); }
.hero { padding: clamp(150px,16vw,190px) 0 100px; text-align: center; }
.eyebrow { margin: 0; color: var(--violet); font-size: 13px; font-weight: 700; text-transform: uppercase; letter-spacing: .14em; }
.hero h1 { max-width: 980px; margin: 18px auto 25px; font-size: clamp(50px,8vw,104px); font-weight: 300; line-height: .98; letter-spacing: -.055em; }
.hero h1 em { color: var(--violet); font-style: normal; }
.hero__lead { max-width: 720px; margin: 0 auto 32px; color: var(--body); font-size: clamp(18px,2vw,23px); }
.actions { display: flex; flex-wrap: wrap; justify-content: center; gap: 12px; }
.note { color: var(--faint); font-size: 13px; }
.section { padding: 100px 0; }
.section--soft { background: linear-gradient(180deg,rgba(22,19,31,.65),rgba(22,19,31,.15)); border-block: 1px solid var(--line); }
.section__head { max-width: 790px; margin-bottom: 44px; }
.h-section { margin: 12px 0 16px; font-size: clamp(40px,5.5vw,70px); font-weight: 300; line-height: 1.02; letter-spacing: -.045em; }
.lead { color: var(--body); font-size: 19px; }
.grid { display: grid; gap: 18px; }
.grid--2 { grid-template-columns: repeat(2,minmax(0,1fr)); }
.grid--3 { grid-template-columns: repeat(3,minmax(0,1fr)); }
.card {
  padding: clamp(28px,4vw,42px); border: 1px solid var(--line); border-radius: 28px;
  background: linear-gradient(145deg,rgba(36,29,56,.72),rgba(22,19,31,.94));
  box-shadow: 0 30px 70px -38px #000;
}
.card--sky { background: linear-gradient(145deg,rgba(27,58,75,.82),rgba(22,19,31,.94)); }
.card--violet { background: linear-gradient(145deg,rgba(66,43,111,.84),rgba(22,19,31,.94)); }
.card__n { color: var(--violet); font-size: 13px; font-weight: 700; letter-spacing: .12em; }
.card h2, .card h3 { margin: 18px 0 12px; font-weight: 400; line-height: 1.15; }
.card h2 { font-size: clamp(28px,3vw,42px); }
.card h3 { font-size: 25px; }
.card p { margin: 0; color: var(--body); }
.checklist { list-style: none; margin: 24px 0 0; padding: 0; }
.checklist li { position: relative; padding: 11px 0 11px 30px; color: var(--body); border-top: 1px solid var(--line); }
.checklist li::before { content: "✓"; position: absolute; left: 2px; color: #7ee2b8; }
.article { max-width: 820px; }
.article h2 { margin: 58px 0 16px; font-size: 36px; font-weight: 400; }
.article p, .article li { color: var(--body); }
.article a { color: var(--sky); }
.cta { margin: 84px auto; padding: clamp(46px,7vw,88px); text-align: center; border: 1px solid rgba(143,107,255,.3); border-radius: 36px; background: radial-gradient(circle at 50% 0,rgba(143,107,255,.3),transparent 58%),var(--card); }
.cta h2 { max-width: 780px; margin: 0 auto 20px; font-size: clamp(40px,6vw,74px); font-weight: 300; line-height: 1; letter-spacing: -.045em; }
.cta p { max-width: 620px; margin: 0 auto 28px; color: var(--body); }
.calculator { max-width: 820px; margin-inline: auto; }
.calc-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.field { display: grid; gap: 8px; }
.field--wide { grid-column: 1/-1; }
.field label { color: var(--body); font-size: 14px; }
.field input, .field select { width: 100%; height: 56px; padding: 0 16px; color: var(--ink); border: 1px solid var(--line); border-radius: 15px; background: rgba(240,237,247,.055); font: inherit; outline: none; }
.field input:focus, .field select:focus { border-color: var(--violet); }
.calc-submit { margin-top: 38px; }
.result { display: none; margin-top: 24px; }
.result.is-visible { display: block; animation: rise .5s ease both; }
.result__number { margin: 10px 0; font-size: clamp(60px,9vw,94px); font-weight: 300; line-height: 1; letter-spacing: -.06em; }
.macros { display: grid; grid-template-columns: repeat(3,1fr); gap: 10px; margin: 22px 0; }
.macro { padding: 17px; border: 1px solid var(--line); border-radius: 16px; color: var(--body); }
.macro b { display: block; color: var(--ink); font-size: 22px; }
.footer { padding: 44px 0; color: var(--faint); border-top: 1px solid var(--line); font-size: 14px; }
.footer__row { display: flex; flex-wrap: wrap; align-items: center; gap: 18px 28px; }
.footer__brand { margin-right:auto; display:inline-flex; align-items:center; gap:10px; color:var(--ink); font-size:17px; font-weight:700; }
.footer__brand img { width:28px; height:auto; filter:brightness(0) invert(1); }
.footer a { text-decoration: none; }
@keyframes rise { from { opacity: 0; transform: translateY(20px); } }
@media(max-width:820px) {
  .nav__menu a:not(.nav__button) { display:none; }
  .grid--2,.grid--3,.calc-grid { grid-template-columns:1fr; }
  .field--wide { grid-column:auto; }
  .hero { text-align:left; }
  .hero h1,.hero__lead { margin-left:0; }
  .actions { justify-content:flex-start; }
}
@media(max-width:640px) {
  .wrap { width:calc(100% - 40px); }
  .nav { top:12px; }
  .nav__row { min-height:58px; margin-top:0; padding:0; }
  .nav__logo { padding:8px 12px 8px 9px; }
  .nav__menu { padding:5px; }
  .nav__button { padding:9px 12px; font-size:12px!important; }
  .hero { padding-top:130px; }
  .section { padding:72px 0; }
  .macros { grid-template-columns:1fr; }
}
@media(prefers-reduced-motion:reduce) { * { scroll-behavior:auto!important; animation:none!important; transition:none!important; } }