/* ===== Tokens ===== */
:root {
  --bg: #0b0d12;
  --bg-alt: #11141c;
  --surface: #161a24;
  --border: #232838;
  --text: #e7eaf0;
  --muted: #9aa3b5;
  --brand: #6c8cff;
  --brand-2: #b16cff;
  --radius: 16px;
  --maxw: 1120px;
  --ease: cubic-bezier(.22,.61,.36,1);
}

/* ===== Reset ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
ul, ol { list-style: none; }

.container { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }

/* ===== Buttons ===== */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 13px 26px; border-radius: 999px; font-weight: 600; font-size: 15px;
  cursor: pointer; border: 1px solid transparent; transition: transform .2s var(--ease), box-shadow .2s var(--ease), background .2s;
}
.btn--primary {
  background: linear-gradient(135deg, var(--brand), var(--brand-2));
  color: #fff; box-shadow: 0 8px 28px rgba(108,140,255,.35);
}
.btn--primary:hover { transform: translateY(-2px); box-shadow: 0 12px 34px rgba(108,140,255,.45); }
.btn--ghost { background: transparent; border-color: var(--border); color: var(--text); }
.btn--ghost:hover { border-color: var(--brand); color: #fff; }

/* ===== Header ===== */
.site-header {
  position: sticky; top: 0; z-index: 50;
  backdrop-filter: blur(12px);
  background: rgba(11,13,18,.72);
  border-bottom: 1px solid transparent;
  transition: border-color .3s, background .3s;
}
.site-header.scrolled { border-bottom-color: var(--border); }
.header__inner { display: flex; align-items: center; justify-content: space-between; height: 68px; }
.logo { font-weight: 800; font-size: 22px; letter-spacing: -.5px; }
.logo span { background: linear-gradient(135deg, var(--brand), var(--brand-2)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.nav { display: flex; align-items: center; gap: 28px; }
.nav a { color: var(--muted); font-weight: 500; font-size: 15px; transition: color .2s; }
.nav a:hover { color: var(--text); }
.nav__cta { color: var(--text) !important; padding: 9px 20px; border: 1px solid var(--border); border-radius: 999px; }
.nav__cta:hover { border-color: var(--brand); }

.burger { display: none; flex-direction: column; gap: 5px; background: none; border: none; cursor: pointer; padding: 6px; }
.burger span { width: 24px; height: 2px; background: var(--text); border-radius: 2px; transition: .3s; }
.burger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.burger.open span:nth-child(2) { opacity: 0; }
.burger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ===== Hero ===== */
.hero { position: relative; padding: 110px 0 90px; overflow: hidden; }
.hero::before {
  content: ""; position: absolute; inset: 0; z-index: -1;
  background:
    radial-gradient(600px 320px at 20% 0%, rgba(108,140,255,.18), transparent 70%),
    radial-gradient(500px 300px at 90% 20%, rgba(177,108,255,.16), transparent 70%);
}
.hero__kicker { color: var(--brand); font-weight: 600; letter-spacing: 2px; text-transform: uppercase; font-size: 13px; margin-bottom: 18px; }
.hero__title { font-size: clamp(34px, 6vw, 60px); font-weight: 800; line-height: 1.08; letter-spacing: -1.5px; }
.grad { background: linear-gradient(135deg, var(--brand), var(--brand-2)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero__lead { color: var(--muted); font-size: clamp(16px, 2.2vw, 19px); max-width: 560px; margin: 24px 0 34px; }
.hero__actions { display: flex; gap: 14px; flex-wrap: wrap; }
.hero__stats { display: flex; gap: 48px; margin-top: 64px; flex-wrap: wrap; }
.stat b { display: block; font-size: 30px; font-weight: 800; }
.stat span { color: var(--muted); font-size: 14px; }

/* ===== Sections ===== */
.section { padding: 88px 0; }
.section--alt { background: var(--bg-alt); }
.section__title { font-size: clamp(26px, 4vw, 38px); font-weight: 800; letter-spacing: -1px; }
.section__subtitle { color: var(--muted); margin-top: 10px; margin-bottom: 48px; font-size: 17px; }

/* ===== Cards ===== */
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 20px; }
.card {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 30px 26px; transition: transform .25s var(--ease), border-color .25s;
}
.card:hover { transform: translateY(-4px); border-color: var(--brand); }
.card__icon { font-size: 30px; margin-bottom: 16px; }
.card h3 { font-size: 19px; margin-bottom: 10px; }
.card p { color: var(--muted); font-size: 15px; }

/* ===== Steps ===== */
.steps { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 20px; counter-reset: step; }
.step { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 28px 24px; }
.step__num { font-size: 14px; font-weight: 700; color: var(--brand); letter-spacing: 1px; }
.step h3 { margin: 12px 0 8px; font-size: 18px; }
.step p { color: var(--muted); font-size: 15px; }

/* ===== About ===== */
.about { display: grid; grid-template-columns: 1.4fr 1fr; gap: 48px; align-items: center; }
.about__text p { color: var(--muted); margin-top: 16px; font-size: 17px; }
.about__list { display: grid; gap: 14px; }
.about__list li { background: var(--surface); border: 1px solid var(--border); border-radius: 12px; padding: 14px 18px; font-weight: 500; }

/* ===== CTA / Form ===== */
.cta { text-align: center; }
.cta__inner { max-width: 620px; margin: 0 auto; }
.cta h2 { font-size: clamp(26px, 4vw, 38px); font-weight: 800; letter-spacing: -1px; }
.cta p { color: var(--muted); margin: 12px 0 32px; font-size: 17px; }
.form { display: grid; gap: 14px; text-align: left; }
.form__row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.form input, .form textarea {
  width: 100%; background: var(--surface); border: 1px solid var(--border); border-radius: 12px;
  padding: 14px 16px; color: var(--text); font: inherit; font-size: 15px; transition: border-color .2s;
}
.form input:focus, .form textarea:focus { outline: none; border-color: var(--brand); }
.form input::placeholder, .form textarea::placeholder { color: #6b7488; }
.form .btn { justify-self: start; }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; opacity: 0; pointer-events: none; }
.form__note { font-size: 14px; padding: 10px 0; }
.form__note.ok { color: #5fd38a; }
.form__note.err { color: #ff7a7a; }

/* ===== Footer ===== */
.footer { border-top: 1px solid var(--border); padding: 36px 0; }
.footer__inner { display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
.footer__copy { color: var(--muted); font-size: 14px; }
.footer__links a { color: var(--muted); transition: color .2s; }
.footer__links a:hover { color: var(--brand); }

/* ===== Reveal animation ===== */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity .6s var(--ease), transform .6s var(--ease); }
.reveal.visible { opacity: 1; transform: none; }

/* ===== Responsive ===== */
@media (max-width: 760px) {
  .nav {
    position: fixed; top: 68px; right: 0; left: 0;
    flex-direction: column; gap: 0; align-items: stretch;
    background: var(--bg-alt); border-bottom: 1px solid var(--border);
    max-height: 0; overflow: hidden; transition: max-height .3s var(--ease);
  }
  .nav.open { max-height: 320px; }
  .nav a { padding: 16px 24px; border-top: 1px solid var(--border); }
  .nav__cta { border: none !important; border-radius: 0; }
  .burger { display: flex; }
  .about { grid-template-columns: 1fr; gap: 28px; }
  .form__row { grid-template-columns: 1fr; }
  .hero__stats { gap: 32px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { transition: none; opacity: 1; transform: none; }
}