:root {
  --bg: #0b0d17;
  --bg2: #10132a;
  --card: #141834;
  --line: #262b52;
  --text: #e8eaf6;
  --muted: #9aa0c3;
  --a: #6d5dfc;
  --b: #22d3ee;
  --grad: linear-gradient(135deg, var(--a), var(--b));
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; scroll-padding-top: 80px; }
body { font-family: Inter, system-ui, sans-serif; background: var(--bg); color: var(--text); line-height: 1.6; overflow-x: hidden; }
a { color: inherit; text-decoration: none; }
img { display: block; }
.container { width: min(1160px, 100% - 32px); margin-inline: auto; }
.narrow { width: min(780px, 100% - 32px); }

.btn { display: inline-block; background: var(--grad); color: #fff; font-weight: 600; padding: 14px 26px; border-radius: 12px; border: 0; cursor: pointer; font: inherit; font-weight: 600; transition: transform .2s, box-shadow .2s; }
.btn:hover { transform: translateY(-2px); box-shadow: 0 10px 30px -10px var(--a); }
.btn-sm { padding: 9px 18px; font-size: .9rem; }
.btn-ghost { background: transparent; border: 1px solid var(--line); }
.btn-ghost:hover { box-shadow: none; border-color: var(--muted); }

/* Nav */
.nav { position: fixed; inset: 0 0 auto; z-index: 50; transition: background .3s, border-color .3s; border-bottom: 1px solid transparent; }
.nav.scrolled { background: rgba(11, 13, 23, .85); backdrop-filter: blur(12px); border-color: var(--line); }
.nav-inner { display: flex; align-items: center; justify-content: space-between; height: 72px; }
.logo { display: flex; align-items: center; gap: 10px; font-weight: 800; font-size: 1.25rem; letter-spacing: -.02em; }
.links { display: flex; align-items: center; gap: 28px; font-size: .95rem; }
.links a:not(.btn) { color: var(--muted); transition: color .2s; }
.links a:not(.btn):hover { color: var(--text); }
.burger { display: none; background: none; border: 0; cursor: pointer; width: 40px; height: 40px; flex-direction: column; justify-content: center; gap: 5px; align-items: center; }
.burger span { width: 22px; height: 2px; background: var(--text); transition: transform .3s, opacity .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: 180px 0 100px; text-align: center; overflow: hidden; }
.glow { position: absolute; width: 520px; height: 520px; border-radius: 50%; filter: blur(120px); opacity: .35; pointer-events: none; }
.g1 { background: var(--a); top: -160px; left: -120px; }
.g2 { background: var(--b); bottom: -260px; right: -140px; opacity: .2; }
.hero-inner { position: relative; }
.eyebrow { color: var(--b); font-weight: 600; font-size: .85rem; letter-spacing: .14em; text-transform: uppercase; margin-bottom: 14px; }
h1 { font-size: clamp(2.4rem, 6vw, 4.4rem); line-height: 1.08; letter-spacing: -.035em; font-weight: 800; max-width: 900px; margin: 0 auto 22px; }
.grad { background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.lead { color: var(--muted); font-size: clamp(1.05rem, 2vw, 1.2rem); max-width: 680px; margin: 0 auto 36px; }
.cta { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }
.pills { list-style: none; display: flex; flex-wrap: wrap; justify-content: center; gap: 10px; margin-top: 54px; }
.pills li { border: 1px solid var(--line); color: var(--muted); padding: 7px 16px; border-radius: 99px; font-size: .88rem; background: rgba(20, 24, 52, .5); }

/* Values */
.values { display: grid; grid-template-columns: repeat(4, 1fr); border: 1px solid var(--line); border-radius: 18px; background: var(--bg2); }
.value { padding: 26px 24px; display: flex; flex-direction: column; gap: 4px; }
.value + .value { border-left: 1px solid var(--line); }
.value strong { font-size: 1.15rem; }
.value span { color: var(--muted); font-size: .92rem; }

/* Sections */
.section { padding: 110px 0; }
.section.alt { background: var(--bg2); border-block: 1px solid var(--line); }
.head { text-align: center; max-width: 680px; margin: 0 auto 56px; }
h2 { font-size: clamp(1.9rem, 4vw, 2.8rem); line-height: 1.15; letter-spacing: -.03em; margin-bottom: 14px; }
.head p:not(.eyebrow) { color: var(--muted); }
h3 { font-size: 1.2rem; margin-bottom: 8px; letter-spacing: -.01em; }
.grid { display: grid; gap: 20px; }
.cards { grid-template-columns: repeat(3, 1fr); }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 18px; padding: 30px; transition: transform .25s, border-color .25s; }
.card:hover { transform: translateY(-4px); border-color: var(--a); }
.card p, .steps p, .why p { color: var(--muted); font-size: .97rem; }
.ico { width: 48px; height: 48px; border-radius: 12px; display: grid; place-items: center; background: var(--grad); font-size: 1.3rem; margin-bottom: 20px; color: #fff; }

.steps { list-style: none; display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.steps li { padding: 28px; border-radius: 18px; border: 1px solid var(--line); background: var(--bg); }
.steps span { display: block; font-size: 2.2rem; font-weight: 800; margin-bottom: 12px; background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }

.tech { display: grid; grid-template-columns: repeat(3, 1fr); border: 1px solid var(--line); border-radius: 18px; overflow: hidden; }
.tech div { padding: 28px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); margin: 0 -1px -1px 0; }
.tech h4 { margin-bottom: 6px; }
.tech p { color: var(--muted); font-size: .95rem; }

.tags { grid-template-columns: repeat(4, 1fr); gap: 14px; margin-bottom: 56px; }
.tags div { text-align: center; padding: 18px; border-radius: 14px; border: 1px solid var(--line); background: var(--bg); font-weight: 600; }
.why { grid-template-columns: repeat(3, 1fr); gap: 32px; }
.why div { border-left: 3px solid var(--a); padding-left: 20px; }

details { border: 1px solid var(--line); border-radius: 14px; background: var(--card); margin-bottom: 12px; }
summary { cursor: pointer; padding: 20px 24px; font-weight: 600; list-style: none; display: flex; justify-content: space-between; gap: 16px; }
summary::-webkit-details-marker { display: none; }
summary::after { content: "+"; color: var(--b); font-size: 1.3rem; line-height: 1; transition: transform .2s; }
details[open] summary::after { transform: rotate(45deg); }
details p { padding: 0 24px 20px; color: var(--muted); }

/* Contact */
.contact { background: radial-gradient(800px 400px at 20% 0%, rgba(109, 93, 252, .18), transparent); }
.contact-inner { display: grid; grid-template-columns: 1fr 1.1fr; gap: 60px; align-items: start; }
.contact-inner > div p:not(.eyebrow) { color: var(--muted); }
.checks { list-style: none; margin-top: 26px; display: grid; gap: 10px; }
.checks li::before { content: "✓"; color: var(--b); font-weight: 700; margin-right: 10px; }
.form { background: var(--card); border: 1px solid var(--line); border-radius: 20px; padding: 32px; display: grid; gap: 18px; }
.row { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
label { display: grid; gap: 8px; font-size: .9rem; font-weight: 500; color: var(--muted); }
input, select, textarea { font: inherit; color: var(--text); background: var(--bg); border: 1px solid var(--line); border-radius: 10px; padding: 12px 14px; width: 100%; resize: vertical; }
input:focus, select:focus, textarea:focus { outline: none; border-color: var(--a); box-shadow: 0 0 0 3px rgba(109, 93, 252, .25); }
.note { font-size: .92rem; color: var(--b); min-height: 1.2em; }

/* Footer */
.footer { border-top: 1px solid var(--line); padding: 40px 0; }
.foot { display: flex; align-items: center; justify-content: space-between; gap: 20px; flex-wrap: wrap; }
.foot nav { display: flex; gap: 22px; flex-wrap: wrap; }
.foot nav a, .foot p { color: var(--muted); font-size: .9rem; }
.foot nav a:hover { color: var(--text); }

/* Reveal */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity .7s ease, transform .7s ease; }
.reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) { .reveal { opacity: 1; transform: none; transition: none; } html { scroll-behavior: auto; } }

/* Responsive */
@media (max-width: 980px) {
  .cards, .tech, .why { grid-template-columns: repeat(2, 1fr); }
  .steps, .values { grid-template-columns: repeat(2, 1fr); }
  .value:nth-child(3) { border-left: 0; }
  .value:nth-child(n+3) { border-top: 1px solid var(--line); }
  .contact-inner { grid-template-columns: 1fr; gap: 40px; }
}
@media (max-width: 760px) {
  .burger { display: flex; }
  .links { position: fixed; top: 72px; left: 0; right: 0; flex-direction: column; align-items: stretch; gap: 0; background: var(--bg); border-bottom: 1px solid var(--line); padding: 8px 16px 20px; transform: translateY(-120%); opacity: 0; transition: transform .3s, opacity .3s; z-index: -1; }
  .links.open { transform: none; opacity: 1; }
  .links a:not(.btn) { padding: 14px 0; border-bottom: 1px solid var(--line); }
  .links .btn { margin-top: 16px; text-align: center; }
  .nav.menu { background: var(--bg); }
  .hero { padding: 140px 0 70px; }
  .section { padding: 80px 0; }
  .cards, .tech, .why, .steps, .row { grid-template-columns: 1fr; }
  .tags { grid-template-columns: repeat(2, 1fr); }
  .values { grid-template-columns: 1fr 1fr; }
  .form { padding: 22px; }
  .foot { flex-direction: column; text-align: center; }
  .foot nav { justify-content: center; }
}
.logo em { font-style: normal; font-weight: 500; color: var(--muted); }
@media (max-width: 380px) { .nav .logo em { display: none; } }