/* Qbar Tech — site styles */
:root {
  --bg: #0b1120;
  --bg-soft: #0f172a;
  --panel: #111a2e;
  --panel-2: #0d1526;
  --border: #1e293b;
  --text: #e6edf7;
  --muted: #93a4bd;
  --accent: #2563eb;
  --accent-2: #22d3ee;
  --accent-soft: rgba(37, 99, 235, 0.14);
  --radius: 16px;
  --maxw: 1120px;
  --shadow: 0 18px 50px -20px rgba(2, 8, 23, 0.85);
  --font: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font);
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }

img { max-width: 100%; display: block; }

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

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: rgba(11, 17, 32, 0.82);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.12rem;
  letter-spacing: -0.01em;
}
.brand .logo {
  width: 34px;
  height: 34px;
  border-radius: 9px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  display: grid;
  place-items: center;
  font-weight: 800;
  color: #04122e;
  font-size: 1rem;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
  font-size: 0.95rem;
  color: var(--muted);
}
.nav-links a:hover { color: var(--text); }
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 11px 20px;
  border-radius: 10px;
  font-weight: 600;
  font-size: 0.95rem;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.12s ease, background 0.2s ease, border-color 0.2s ease;
}
.btn:hover { transform: translateY(-1px); }
.btn-primary {
  background: linear-gradient(135deg, var(--accent), #3b82f6);
  color: #fff;
  box-shadow: 0 10px 24px -12px var(--accent);
}
.btn-ghost {
  background: transparent;
  color: var(--text);
  border-color: var(--border);
}
.btn-ghost:hover { border-color: var(--accent); }
.nav-toggle { display: none; }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  overflow: hidden;
  padding: 96px 0 88px;
  background:
    radial-gradient(1000px 480px at 78% -8%, rgba(34, 211, 238, 0.12), transparent 60%),
    radial-gradient(900px 520px at 8% 12%, rgba(37, 99, 235, 0.20), transparent 62%),
    var(--bg);
}
.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--border) 1px, transparent 1px),
    linear-gradient(90deg, var(--border) 1px, transparent 1px);
  background-size: 46px 46px;
  opacity: 0.10;
  mask-image: radial-gradient(650px 400px at 60% 0%, #000, transparent 75%);
  pointer-events: none;
}
.hero-inner { position: relative; max-width: 760px; }
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 13px;
  border: 1px solid var(--border);
  background: var(--accent-soft);
  border-radius: 999px;
  font-size: 0.82rem;
  color: #bcd0f5;
  margin-bottom: 22px;
}
.dot { width: 7px; height: 7px; border-radius: 50%; background: var(--accent-2); box-shadow: 0 0 10px var(--accent-2); }
.hero h1 {
  font-size: clamp(2.2rem, 5.4vw, 3.7rem);
  line-height: 1.06;
  letter-spacing: -0.03em;
  margin: 0 0 20px;
}
.hero h1 .grad {
  background: linear-gradient(120deg, #60a5fa, #22d3ee);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero p {
  font-size: 1.14rem;
  color: var(--muted);
  max-width: 620px;
  margin: 0 0 32px;
}
.hero-cta { display: flex; gap: 14px; flex-wrap: wrap; }

/* ---------- Sections ---------- */
section { padding: 78px 0; }
.section-head { max-width: 640px; margin-bottom: 44px; }
.kicker {
  text-transform: uppercase;
  letter-spacing: 0.16em;
  font-size: 0.76rem;
  font-weight: 600;
  color: var(--accent-2);
  margin: 0 0 12px;
}
.section-head h2 {
  font-size: clamp(1.7rem, 3.4vw, 2.5rem);
  letter-spacing: -0.02em;
  margin: 0 0 14px;
}
.section-head p { color: var(--muted); margin: 0; font-size: 1.05rem; }

/* Stats */
.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 34px 0;
}
.stat .num {
  font-size: 2.1rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  background: linear-gradient(120deg, #93c5fd, #22d3ee);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.stat .label { color: var(--muted); font-size: 0.92rem; }

/* Cards */
.grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}
.card {
  background: linear-gradient(180deg, var(--panel), var(--panel-2));
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  transition: transform 0.18s ease, border-color 0.18s ease;
}
.card:hover { transform: translateY(-3px); border-color: #2b3d5e; }
.card .ico {
  width: 46px; height: 46px;
  border-radius: 12px;
  display: grid; place-items: center;
  background: var(--accent-soft);
  border: 1px solid var(--border);
  margin-bottom: 18px;
  color: var(--accent-2);
}
.card h3 { margin: 0 0 8px; font-size: 1.2rem; letter-spacing: -0.01em; }
.card p { margin: 0; color: var(--muted); font-size: 0.98rem; }

/* About / split */
.split {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 48px;
  align-items: center;
}
.split h2 { font-size: clamp(1.7rem, 3.2vw, 2.4rem); letter-spacing: -0.02em; margin: 0 0 16px; }
.split p { color: var(--muted); margin: 0 0 16px; }
.check-list { list-style: none; padding: 0; margin: 22px 0 0; display: grid; gap: 12px; }
.check-list li { display: flex; gap: 12px; align-items: flex-start; color: var(--text); }
.check-list .tick {
  flex: none; width: 22px; height: 22px; border-radius: 6px;
  background: var(--accent-soft); color: var(--accent-2);
  display: grid; place-items: center; font-size: 0.8rem; margin-top: 3px;
}
.panel-visual {
  background: linear-gradient(180deg, var(--panel), var(--panel-2));
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 26px;
  box-shadow: var(--shadow);
}
.code-row { display: flex; gap: 8px; margin-bottom: 18px; }
.code-row span { width: 12px; height: 12px; border-radius: 50%; background: #334155; }
.code-row span:nth-child(1) { background: #ef4444; }
.code-row span:nth-child(2) { background: #f59e0b; }
.code-row span:nth-child(3) { background: #22c55e; }
.code-line { height: 11px; border-radius: 6px; background: #1c2942; margin: 11px 0; }
.code-line.a { width: 82%; background: linear-gradient(90deg, #2563eb55, #22d3ee33); }
.code-line.b { width: 60%; }
.code-line.c { width: 72%; }
.code-line.d { width: 45%; background: linear-gradient(90deg, #22d3ee44, transparent); }

/* Process */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.step .n {
  font-size: 0.85rem; font-weight: 700; color: var(--accent-2);
  border: 1px solid var(--border); background: var(--accent-soft);
  width: 34px; height: 34px; border-radius: 9px; display: grid; place-items: center;
  margin-bottom: 16px;
}
.step h4 { margin: 0 0 8px; font-size: 1.05rem; }
.step p { margin: 0; color: var(--muted); font-size: 0.94rem; }

/* Contact / CTA */
.cta {
  background:
    radial-gradient(700px 300px at 20% 0%, rgba(37, 99, 235, 0.22), transparent 60%),
    linear-gradient(180deg, var(--panel), var(--panel-2));
  border: 1px solid var(--border);
  border-radius: 24px;
  padding: 54px 40px;
  text-align: center;
}
.cta h2 { font-size: clamp(1.7rem, 3.4vw, 2.4rem); margin: 0 0 12px; letter-spacing: -0.02em; }
.cta p { color: var(--muted); margin: 0 auto 26px; max-width: 520px; }
.cta .mail {
  font-size: 1.15rem; font-weight: 600; color: var(--accent-2);
}

/* ---------- Footer ---------- */
.site-footer {
  border-top: 1px solid var(--border);
  background: var(--bg-soft);
  padding: 46px 0 34px;
  margin-top: 20px;
}
.footer-grid {
  display: flex;
  justify-content: space-between;
  gap: 28px;
  flex-wrap: wrap;
  margin-bottom: 30px;
}
.footer-grid .col p { color: var(--muted); font-size: 0.92rem; max-width: 300px; margin: 12px 0 0; }
.footer-links { display: flex; gap: 26px; flex-wrap: wrap; font-size: 0.92rem; color: var(--muted); }
.footer-links a:hover { color: var(--text); }
.footer-bottom {
  border-top: 1px solid var(--border);
  padding-top: 22px;
  display: flex;
  justify-content: space-between;
  gap: 14px;
  flex-wrap: wrap;
  color: var(--muted);
  font-size: 0.86rem;
}

/* ---------- Legal pages ---------- */
.legal { padding: 64px 0 40px; }
.legal .wrap { max-width: 820px; }
.legal h1 { font-size: clamp(1.9rem, 4vw, 2.6rem); letter-spacing: -0.02em; margin: 0 0 8px; }
.legal .updated { color: var(--muted); font-size: 0.9rem; margin: 0 0 36px; }
.legal h2 { font-size: 1.3rem; margin: 34px 0 10px; letter-spacing: -0.01em; }
.legal h3 { font-size: 1.05rem; margin: 22px 0 8px; }
.legal p, .legal li { color: #c3d0e4; }
.legal ul { padding-left: 20px; }
.legal li { margin: 6px 0; }
.legal a.inline { color: var(--accent-2); }
.legal a.inline:hover { text-decoration: underline; }
.back-home { display: inline-flex; align-items: center; gap: 8px; color: var(--accent-2); margin-bottom: 28px; font-size: 0.92rem; }

/* ---------- Responsive ---------- */
@media (max-width: 860px) {
  .nav-links { display: none; }
  .nav-links.open {
    display: flex; flex-direction: column; align-items: flex-start;
    position: absolute; top: 68px; left: 0; right: 0;
    background: var(--bg-soft); border-bottom: 1px solid var(--border);
    padding: 18px 24px; gap: 16px;
  }
  .nav-toggle {
    display: inline-grid; place-items: center;
    width: 42px; height: 42px; border-radius: 10px;
    background: transparent; border: 1px solid var(--border); color: var(--text); cursor: pointer;
  }
  .stats { grid-template-columns: repeat(2, 1fr); gap: 26px 20px; }
  .grid { grid-template-columns: 1fr; }
  .split { grid-template-columns: 1fr; gap: 32px; }
  .steps { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 520px) {
  .steps { grid-template-columns: 1fr; }
  .hero { padding: 72px 0 64px; }
  .cta { padding: 40px 22px; }
}