:root {
  --ink: #141a26;
  --muted: #5b6577;
  --line: #e4e8ef;
  --bg: #ffffff;
  --soft: #f5f7fb;
  --brand: #4f46e5;
  --brand-dark: #3b34c4;
  --teal: #21d0b3;
  --sky: #1dcdfe;
  --radius: 14px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: "Segoe UI", system-ui, -apple-system, Roboto, Arial, sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.6;
}
img { max-width: 100%; }
a { color: var(--brand); }
.container { width: min(1120px, 100% - 32px); margin-inline: auto; }

/* Header */
.site-header { position: sticky; top: 0; z-index: 10; background: rgba(255,255,255,.94); backdrop-filter: blur(8px); border-bottom: 1px solid var(--line); }
.site-header .container { display: flex; align-items: center; justify-content: space-between; gap: 16px; min-height: 64px; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 1.15rem; color: var(--ink); text-decoration: none; }
.brand img { width: 34px; height: 34px; }
.nav { display: flex; align-items: center; gap: 22px; }
.nav a { color: var(--ink); text-decoration: none; font-weight: 500; }
.nav a:hover, .nav a[aria-current="page"] { color: var(--brand); }
.btn { display: inline-block; padding: 10px 20px; border-radius: 10px; font-weight: 600; text-decoration: none; border: 1px solid var(--brand); background: var(--brand); color: #fff !important; }
.btn:hover { background: var(--brand-dark); border-color: var(--brand-dark); }
.btn.outline { background: transparent; color: var(--brand) !important; }
.btn.outline:hover { background: var(--soft); }
.btn.large { padding: 14px 28px; font-size: 1.05rem; }

/* Hero */
.hero { background: linear-gradient(135deg, #141a26 0%, #26204f 100%); color: #fff; padding: 84px 0 92px; }
.hero .container { display: grid; grid-template-columns: 1.2fr .8fr; gap: 48px; align-items: center; }
.hero h1 { font-size: clamp(2rem, 4.5vw, 3.2rem); line-height: 1.15; margin: 0 0 18px; }
.hero p { font-size: 1.15rem; color: #cfd6e6; margin: 0 0 28px; max-width: 560px; }
.hero .actions { display: flex; gap: 14px; flex-wrap: wrap; }
.hero .btn.outline { color: #fff !important; border-color: rgba(255,255,255,.5); }
.hero .btn.outline:hover { background: rgba(255,255,255,.1); }
.hero-art { display: grid; place-items: center; }
.hero-art img { width: min(260px, 70%); filter: drop-shadow(0 20px 40px rgba(29,205,254,.35)); }

/* Sections */
section { padding: 72px 0; }
section.soft { background: var(--soft); }
.section-head { text-align: center; max-width: 680px; margin: 0 auto 44px; }
.section-head h2 { font-size: clamp(1.6rem, 3vw, 2.2rem); margin: 0 0 10px; }
.section-head p { color: var(--muted); margin: 0; }
.grid { display: grid; gap: 22px; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); }
.card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 26px; }
.card h3 { margin: 0 0 8px; font-size: 1.15rem; }
.card p { margin: 0; color: var(--muted); }
.card ul { margin: 10px 0 0; padding-left: 20px; color: var(--muted); }
.icon { width: 44px; height: 44px; border-radius: 12px; background: linear-gradient(135deg, var(--sky), var(--teal)); display: grid; place-items: center; margin-bottom: 14px; font-size: 1.3rem; }
.page-title { background: var(--soft); padding: 56px 0; border-bottom: 1px solid var(--line); }
.page-title h1 { margin: 0 0 10px; font-size: clamp(1.8rem, 4vw, 2.6rem); }
.page-title p { margin: 0; color: var(--muted); max-width: 680px; font-size: 1.1rem; }
.steps { counter-reset: step; }
.steps .card::before { counter-increment: step; content: counter(step); display: grid; place-items: center; width: 34px; height: 34px; border-radius: 50%; background: var(--brand); color: #fff; font-weight: 700; margin-bottom: 12px; }

/* FAQ */
details { border: 1px solid var(--line); border-radius: 12px; padding: 16px 20px; background: #fff; margin-bottom: 12px; }
summary { cursor: pointer; font-weight: 600; }
details p { margin: 10px 0 0; color: var(--muted); }
.faq { max-width: 800px; margin-inline: auto; }

/* CTA */
.cta { background: linear-gradient(135deg, var(--brand), #7c3aed); color: #fff; text-align: center; }
.cta h2 { margin: 0 0 10px; font-size: clamp(1.6rem, 3vw, 2.2rem); }
.cta p { margin: 0 0 26px; color: #e6e3ff; }
.cta .btn { background: #fff; color: var(--brand) !important; border-color: #fff; }

/* Login */
.login-wrap { min-height: calc(100vh - 64px - 90px); display: grid; place-items: center; padding: 48px 16px; background: var(--soft); }
.login-card { width: min(440px, 100%); background: #fff; border: 1px solid var(--line); border-radius: 18px; padding: 36px; text-align: center; box-shadow: 0 18px 50px rgba(20,26,38,.08); }
.login-card img { width: 64px; }
.login-card h1 { margin: 14px 0 6px; font-size: 1.6rem; }
.login-card p { color: var(--muted); margin: 0 0 24px; }
.login-card .btn { display: block; margin-bottom: 12px; }
.login-card small { color: var(--muted); }

/* Footer */
.site-footer { background: #141a26; color: #aab3c5; padding: 40px 0 28px; font-size: .95rem; }
.site-footer .container { display: flex; flex-wrap: wrap; gap: 24px; justify-content: space-between; }
.site-footer a { color: #dfe5f2; text-decoration: none; margin-right: 18px; }
.site-footer a:hover { text-decoration: underline; }
.site-footer .copy { width: 100%; border-top: 1px solid #2a3244; padding-top: 18px; }

@media (max-width: 800px) {
  .hero .container { grid-template-columns: 1fr; }
  .hero-art { display: none; }
  .nav { gap: 14px; font-size: .95rem; }
  .nav .hide-sm { display: none; }
  section { padding: 52px 0; }
}