:root {
  --bg: #07080d;
  --bg-2: #0d0f17;
  --card: rgba(255, 255, 255, 0.03);
  --line: rgba(255, 255, 255, 0.08);
  --line-2: rgba(255, 255, 255, 0.14);
  --text: #eef0f6;
  --muted: #9aa0b4;
  --a1: #3cf0d0;
  --a2: #7b6cff;
  --grad: linear-gradient(100deg, var(--a1), var(--a2));
  --radius: 18px;
  --display: "Space Grotesk", system-ui, sans-serif;
  --body: "Inter", system-ui, sans-serif;
  --mono: "JetBrains Mono", ui-monospace, monospace;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; scroll-padding-top: 80px; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
[hidden] { display: none !important; }
img, svg { display: block; }
ul, ol { list-style: none; }

.container { width: min(1180px, 92%); margin-inline: auto; }
.narrow { width: min(820px, 92%); }

/* Background */
.bg-grid {
  position: fixed; inset: 0; z-index: -2; pointer-events: none;
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, #000 30%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, #000 30%, transparent 75%);
  opacity: .55;
}
.bg-glow {
  position: fixed; z-index: -1; pointer-events: none;
  width: 900px; height: 600px; top: -250px; left: 50%; transform: translateX(-50%);
  background: radial-gradient(closest-side, rgba(123,108,255,.28), transparent),
              radial-gradient(closest-side, rgba(60,240,208,.16), transparent);
  filter: blur(40px);
}

/* Buttons */
.btn {
  display: inline-flex; align-items: center; gap: .5em; justify-content: center;
  padding: .85em 1.5em; border-radius: 999px; border: 0; cursor: pointer;
  background: var(--grad); color: #05060a; font: 600 15px var(--body);
  transition: transform .2s, box-shadow .2s;
  box-shadow: 0 8px 30px -10px rgba(60,240,208,.5);
}
.btn:hover { transform: translateY(-2px); box-shadow: 0 12px 36px -10px rgba(123,108,255,.7); }
.btn-ghost { background: transparent; color: var(--text); border: 1px solid var(--line-2); box-shadow: none; }
.btn-ghost:hover { border-color: var(--a1); box-shadow: none; }
.btn-sm { padding: .55em 1.1em; font-size: 14px; }
.btn-full { width: 100%; }

.grad { background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }

/* Nav */
.nav {
  position: sticky; top: 0; z-index: 50;
  backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
  background: rgba(7,8,13,.6); border-bottom: 1px solid transparent; transition: border-color .3s;
}
.nav.scrolled { 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: 700 20px var(--display); letter-spacing: -.02em; }
.logo em { font-style: normal; font-weight: 400; color: var(--muted); margin-left: 4px; }
.logo.small { font-size: 17px; }
.nav-links { display: flex; align-items: center; gap: 32px; font-size: 15px; color: var(--muted); }
.nav-links a:not(.btn):hover { color: var(--text); }
.nav-links .btn { color: #05060a; }
.menu-btn { display: none; background: none; border: 0; width: 36px; height: 36px; cursor: pointer; position: relative; }
.menu-btn span { position: absolute; left: 7px; right: 7px; height: 2px; background: var(--text); transition: .3s; }
.menu-btn span:first-child { top: 13px; } .menu-btn span:last-child { top: 21px; }
.menu-btn[aria-expanded="true"] span:first-child { top: 17px; transform: rotate(45deg); }
.menu-btn[aria-expanded="true"] span:last-child { top: 17px; transform: rotate(-45deg); }

/* Hero */
.hero { padding: 90px 0 70px; }
.hero-inner { display: grid; grid-template-columns: 1.1fr .9fr; gap: 60px; align-items: center; }
.eyebrow {
  display: inline-flex; align-items: center; gap: 10px; padding: 7px 14px; border-radius: 999px;
  border: 1px solid var(--line-2); background: var(--card); font: 500 13px var(--mono); color: var(--muted);
}
.dot { width: 8px; height: 8px; border-radius: 50%; background: var(--a1); box-shadow: 0 0 12px var(--a1); animation: pulse 2s infinite; }
@keyframes pulse { 50% { opacity: .35; } }
h1 {
  font: 700 clamp(40px, 6vw, 72px)/1.04 var(--display); letter-spacing: -.035em; margin: 24px 0 20px;
}
.lead { font-size: 18px; color: var(--muted); max-width: 540px; }
.hero-cta { display: flex; gap: 14px; margin: 34px 0 30px; flex-wrap: wrap; }
.hero-points { display: flex; gap: 22px; flex-wrap: wrap; font-size: 14px; color: var(--muted); }
.hero-points li::before { content: "✓"; color: var(--a1); margin-right: 8px; }

.hero-visual { position: relative; }
.term {
  border: 1px solid var(--line-2); border-radius: var(--radius); overflow: hidden;
  background: linear-gradient(180deg, rgba(20,22,34,.9), rgba(10,11,18,.95));
  box-shadow: 0 30px 80px -30px rgba(123,108,255,.45);
}
.term-bar { display: flex; align-items: center; gap: 7px; padding: 13px 16px; border-bottom: 1px solid var(--line); }
.term-bar i { width: 11px; height: 11px; border-radius: 50%; background: #2a2d3d; }
.term-bar i:nth-child(1) { background: #ff5f57; } .term-bar i:nth-child(2) { background: #febc2e; } .term-bar i:nth-child(3) { background: #28c840; }
.term-bar span { margin-left: auto; font: 12px var(--mono); color: var(--muted); }
.term-body { font: 13.5px/1.85 var(--mono); padding: 20px 22px; min-height: 290px; color: #c9cde0; white-space: pre-wrap; }
.term-body .c1 { color: var(--a1); } .term-body .c2 { color: var(--a2); } .term-body .c3 { color: var(--muted); }
.cursor { display: inline-block; width: 8px; height: 16px; background: var(--a1); vertical-align: -3px; animation: pulse 1s steps(1) infinite; }
.float-card {
  position: absolute; display: flex; flex-direction: column; padding: 12px 16px; border-radius: 14px;
  background: rgba(16,18,28,.85); border: 1px solid var(--line-2); backdrop-filter: blur(10px);
  font-size: 13px; box-shadow: 0 16px 40px -16px rgba(0,0,0,.8); animation: float 6s ease-in-out infinite;
}
.float-card b { font-family: var(--display); }
.float-card span { color: var(--muted); font-size: 12px; }
.float-card b::before { content: ""; display: inline-block; width: 7px; height: 7px; border-radius: 50%; background: var(--a1); margin-right: 8px; vertical-align: 2px; }
.fc-1 { right: -18px; top: -22px; }
.fc-2 { left: -26px; bottom: -24px; animation-delay: -3s; }
.fc-2 b::before { background: var(--a2); }
@keyframes float { 50% { transform: translateY(-10px); } }

/* Marquee */
.marquee { border-block: 1px solid var(--line); overflow: hidden; padding: 20px 0; background: rgba(255,255,255,.015); }
.marquee-track { display: flex; gap: 56px; width: max-content; animation: scroll 40s linear infinite; }
.marquee-track span { font: 500 17px var(--display); color: var(--muted); white-space: nowrap; }
.marquee-track span::before { content: "◆"; color: var(--a2); font-size: 10px; margin-right: 14px; vertical-align: 3px; }
@keyframes scroll { to { transform: translateX(-50%); } }

/* Sections */
.section { padding: 110px 0; }
.section-head { text-align: center; max-width: 680px; margin: 0 auto 60px; }
.section-head.left { text-align: left; margin: 0; }
.tag { font: 500 13px var(--mono); color: var(--a1); letter-spacing: .04em; }
h2 { font: 700 clamp(30px, 4vw, 48px)/1.1 var(--display); letter-spacing: -.03em; margin: 14px 0 16px; }
.section-head p { color: var(--muted); font-size: 17px; }
h3 { font: 600 20px var(--display); letter-spacing: -.01em; }

/* Cards */
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.card {
  position: relative; padding: 30px; border-radius: var(--radius); border: 1px solid var(--line);
  background: var(--card); transition: border-color .3s, transform .3s, background .3s; overflow: hidden;
}
.card::after {
  content: ""; position: absolute; inset: 0; border-radius: inherit; pointer-events: none; opacity: 0; transition: opacity .3s;
  background: radial-gradient(400px circle at var(--mx, 50%) var(--my, 0%), rgba(123,108,255,.14), transparent 60%);
}
.card:hover { border-color: rgba(123,108,255,.45); transform: translateY(-4px); }
.card:hover::after { opacity: 1; }
.card-icon {
  width: 48px; height: 48px; border-radius: 12px; display: grid; place-items: center; margin-bottom: 22px;
  background: linear-gradient(135deg, rgba(60,240,208,.15), rgba(123,108,255,.15)); border: 1px solid var(--line-2);
}
.card-icon svg { width: 24px; height: 24px; fill: none; stroke: var(--a1); stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.card p { color: var(--muted); margin: 10px 0 18px; font-size: 15px; }
.card ul { display: flex; flex-wrap: wrap; gap: 8px; }
.card li { font: 12px var(--mono); padding: 4px 10px; border-radius: 999px; border: 1px solid var(--line); color: #c3c7d8; }

/* Steps */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; counter-reset: s; }
.step { padding: 30px 26px; border-radius: var(--radius); border: 1px solid var(--line); background: var(--card); position: relative; }
.step-n { font: 700 42px var(--display); display: block; margin-bottom: 18px; }
.step-n { background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.step p { color: var(--muted); font-size: 15px; margin-top: 8px; }

/* Why */
.why { display: grid; grid-template-columns: .9fr 1.1fr; gap: 60px; align-items: center; }
.why .btn { margin-top: 14px; }
.why-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.why-item { padding: 26px; border-radius: var(--radius); border: 1px solid var(--line); background: var(--card); }
.why-item h3 { font-size: 18px; }
.why-item h3::before { content: ""; display: block; width: 28px; height: 3px; border-radius: 3px; background: var(--grad); margin-bottom: 16px; }
.why-item p { color: var(--muted); font-size: 15px; margin-top: 8px; }

/* FAQ */
.faq { display: grid; gap: 12px; }
.faq details { border: 1px solid var(--line); border-radius: 14px; background: var(--card); padding: 0 24px; transition: border-color .3s; }
.faq details[open] { border-color: rgba(60,240,208,.35); }
.faq summary { cursor: pointer; padding: 20px 0; font: 600 17px var(--display); list-style: none; display: flex; justify-content: space-between; gap: 20px; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; color: var(--a1); font-size: 22px; line-height: 1; transition: transform .3s; }
.faq details[open] summary::after { transform: rotate(45deg); }
.faq details p { color: var(--muted); padding-bottom: 20px; }

/* Contact */
.contact {
  display: grid; grid-template-columns: 1fr 1fr; gap: 50px; padding: 54px; border-radius: 28px;
  border: 1px solid var(--line-2);
  background: radial-gradient(600px circle at 0% 0%, rgba(60,240,208,.08), transparent 60%),
              radial-gradient(600px circle at 100% 100%, rgba(123,108,255,.12), transparent 60%), var(--bg-2);
}
.contact-copy p { color: var(--muted); font-size: 17px; }
.contact-list { margin-top: 32px; display: grid; gap: 14px; }
.contact-list li { display: flex; gap: 16px; align-items: baseline; padding-bottom: 14px; border-bottom: 1px solid var(--line); }
.contact-list span { font: 12px var(--mono); color: var(--muted); width: 80px; text-transform: uppercase; letter-spacing: .06em; }
.contact-list a:hover { color: var(--a1); }
.form { display: grid; gap: 16px; }
.form .row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form label { display: grid; gap: 7px; font-size: 13px; color: var(--muted); font-weight: 500; }
.form input, .form select, .form textarea {
  width: 100%; padding: 13px 15px; border-radius: 12px; border: 1px solid var(--line-2);
  background: rgba(0,0,0,.35); color: var(--text); font: 15px var(--body); transition: border-color .2s, box-shadow .2s;
}
.form select { appearance: none; background-image: linear-gradient(45deg, transparent 50%, var(--muted) 50%), linear-gradient(135deg, var(--muted) 50%, transparent 50%); background-position: calc(100% - 20px) 55%, calc(100% - 15px) 55%; background-size: 5px 5px; background-repeat: no-repeat; }
.form select option { background: var(--bg-2); }
.form input:focus, .form select:focus, .form textarea:focus { outline: none; border-color: var(--a1); box-shadow: 0 0 0 3px rgba(60,240,208,.15); }
.form textarea { resize: vertical; }
.form-note { font-size: 14px; color: var(--a1); min-height: 1.2em; }
.form-note.err { color: #ff7a8a; }

/* Footer */
.footer { border-top: 1px solid var(--line); padding: 34px 0; color: var(--muted); font-size: 14px; }
.footer-inner { display: flex; align-items: center; justify-content: space-between; gap: 20px; flex-wrap: wrap; }
.footer nav { display: flex; gap: 24px; }
.footer 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; }
  .marquee-track, .float-card, .dot { animation: none; }
  html { scroll-behavior: auto; }
}

/* Responsive */
@media (max-width: 1000px) {
  .hero-inner, .why, .contact { grid-template-columns: 1fr; }
  .hero-visual { max-width: 560px; margin: 20px auto 0; width: 100%; }
  .cards { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 760px) {
  .menu-btn { display: block; }
  .nav-links {
    position: fixed; top: 72px; left: 0; right: 0; flex-direction: column; align-items: stretch; gap: 0;
    background: rgba(7,8,13,.97); border-bottom: 1px solid var(--line); padding: 10px 4% 24px;
    transform: translateY(-120%); transition: transform .35s; z-index: -1;
  }
  .nav-links.open { transform: none; }
  .nav-links a:not(.btn) { padding: 14px 0; border-bottom: 1px solid var(--line); font-size: 17px; color: var(--text); }
  .nav-links .btn { margin-top: 18px; }
  .hero { padding-top: 56px; }
  .cards, .steps, .why-grid, .form .row { grid-template-columns: 1fr; }
  .section { padding: 80px 0; }
  .contact { padding: 30px 22px; }
  .fc-1 { right: 6px; } .fc-2 { left: 6px; }
  .footer-inner { flex-direction: column; text-align: center; }
}