:root {
  --navy: #0f4c81; --navy-d: #0b3a63; --teal: #1f9d8f; --teal-l: #5ec2b7;
  --ink: #14212f; --muted: #5a6b7d; --line: #e2e8ef; --bg: #f5f8fb; --card: #fff;
  --radius: 14px; --shadow: 0 10px 30px rgba(15, 76, 129, .08);
  font-family: "Inter", "Segoe UI", system-ui, -apple-system, Roboto, Arial, sans-serif;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--ink); background: #fff; line-height: 1.55; }
a { color: var(--navy); text-decoration: none; }
img, svg { max-width: 100%; }
.wrap { max-width: 1160px; margin: 0 auto; padding: 0 20px; }

/* Header */
.top { position: sticky; top: 0; z-index: 20; background: rgba(255,255,255,.92); backdrop-filter: blur(8px); border-bottom: 1px solid var(--line); }
.top .wrap { display: flex; align-items: center; gap: 28px; height: 68px; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 800; font-size: 20px; color: var(--ink); letter-spacing: -.3px; }
.brand img { width: 34px; height: 34px; }
.brand b { color: var(--teal); }
.nav { display: flex; gap: 22px; margin-left: auto; }
.nav a { color: var(--muted); font-weight: 500; font-size: 15px; }
.nav a:hover { color: var(--navy); }
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; border: 0; cursor: pointer; border-radius: 10px; padding: 11px 20px; font: 600 15px/1 inherit; font-family: inherit; transition: .15s; }
.btn-primary { background: var(--navy); color: #fff; }
.btn-primary:hover { background: var(--navy-d); }
.btn-ghost { background: #fff; color: var(--navy); border: 1px solid #c9d6e3; }
.btn-ghost:hover { border-color: var(--navy); }
.btn-lg { padding: 15px 26px; font-size: 16px; }
.menu-btn { display: none; margin-left: auto; background: none; border: 0; font-size: 26px; cursor: pointer; color: var(--ink); }

/* Hero */
.hero { background: linear-gradient(180deg, #f2f7fc 0%, #fff 100%); padding: 72px 0 56px; overflow: hidden; }
.hero .wrap { display: grid; grid-template-columns: 1.05fr 1fr; gap: 48px; align-items: center; }
.eyebrow { display: inline-block; background: #e3f3f1; color: #13776c; font-weight: 600; font-size: 13px; padding: 6px 12px; border-radius: 99px; letter-spacing: .2px; }
.hero h1 { font-size: 48px; line-height: 1.1; letter-spacing: -1.2px; margin: 18px 0 16px; }
.hero h1 span { color: var(--navy); }
.hero p.lead { font-size: 19px; color: var(--muted); margin: 0 0 28px; max-width: 540px; }
.hero .cta { display: flex; gap: 12px; flex-wrap: wrap; }
.hero .note { margin-top: 18px; font-size: 14px; color: var(--muted); }

.mock { background: #fff; border-radius: 18px; box-shadow: 0 30px 60px rgba(15,76,129,.16); border: 1px solid var(--line); padding: 18px; }
.mock-head { display: flex; gap: 6px; margin-bottom: 14px; }
.mock-head i { width: 10px; height: 10px; border-radius: 50%; background: #dfe6ee; }
.kpis { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; }
.kpi { background: var(--bg); border-radius: 12px; padding: 12px; }
.kpi small { display: block; color: var(--muted); font-size: 12px; }
.kpi strong { font-size: 22px; letter-spacing: -.4px; }
.kpi .up { color: #c2410c; font-size: 12px; font-weight: 600; }
.kpi .ok { color: #13776c; font-size: 12px; font-weight: 600; }
.mock-bars { margin-top: 14px; display: grid; gap: 8px; }
.mb { display: grid; grid-template-columns: 78px 1fr 44px; align-items: center; gap: 8px; font-size: 12px; color: var(--muted); }
.mb .track { height: 10px; border-radius: 6px; background: #edf2f7; position: relative; overflow: hidden; }
.mb .track b { position: absolute; left: 0; top: 0; bottom: 0; border-radius: 6px; background: var(--navy); }
.mb .track em { position: absolute; left: 0; top: 0; bottom: 0; border-radius: 6px; background: var(--teal-l); opacity: .55; }
.mock-legend { display: flex; gap: 16px; font-size: 12px; color: var(--muted); margin-top: 10px; }
.mock-legend span::before { content: ""; display: inline-block; width: 10px; height: 10px; border-radius: 3px; margin-right: 6px; vertical-align: -1px; background: var(--navy); }
.mock-legend span.s::before { background: var(--teal-l); }

/* Sections */
section { padding: 80px 0; }
section.alt { background: var(--bg); }
.sec-head { max-width: 720px; margin-bottom: 42px; }
.sec-head h2 { font-size: 36px; letter-spacing: -.8px; line-height: 1.15; margin: 10px 0 12px; }
.sec-head p { color: var(--muted); font-size: 17px; margin: 0; }
.center { text-align: center; margin-left: auto; margin-right: auto; }

.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 24px; }
section.alt .card { box-shadow: var(--shadow); border-color: transparent; }
.card .ic { width: 44px; height: 44px; border-radius: 12px; display: grid; place-items: center; background: #e8f0f8; color: var(--navy); margin-bottom: 14px; }
.card .ic svg { width: 24px; height: 24px; }
.card h3 { margin: 0 0 6px; font-size: 18px; }
.card p { margin: 0; color: var(--muted); font-size: 15px; }
.card .tag { display: inline-block; font-size: 12px; color: var(--teal); font-weight: 700; letter-spacing: .4px; text-transform: uppercase; margin-bottom: 6px; }

.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; counter-reset: s; }
.step { position: relative; padding-top: 54px; }
.step::before { counter-increment: s; content: counter(s); position: absolute; top: 0; left: 0; width: 40px; height: 40px; border-radius: 50%; background: var(--navy); color: #fff; font-weight: 700; display: grid; place-items: center; }
.step h3 { margin: 0 0 6px; font-size: 18px; }
.step p { margin: 0; color: var(--muted); font-size: 15px; }

.formula { background: var(--ink); color: #e8eef5; border-radius: var(--radius); padding: 28px; font-family: "JetBrains Mono", Consolas, monospace; font-size: 15px; line-height: 1.9; overflow-x: auto; }
.formula .c { color: #7f93a8; }
.formula .k { color: var(--teal-l); }
.formula .n { color: #f6c177; }
.days { width: 100%; border-collapse: collapse; margin-top: 18px; font-size: 15px; }
.days th, .days td { text-align: left; padding: 12px 14px; border-bottom: 1px solid var(--line); }
.days th { color: var(--muted); font-weight: 600; font-size: 13px; text-transform: uppercase; letter-spacing: .3px; }

.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.stat { text-align: center; }
.stat strong { display: block; font-size: 40px; letter-spacing: -1px; color: var(--navy); }
.stat span { color: var(--muted); font-size: 15px; }

/* Contact */
.contact { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: start; }
.form { display: grid; gap: 14px; }
.form label { font-size: 14px; font-weight: 600; display: grid; gap: 6px; }
.form input, .form textarea { font: inherit; padding: 12px 14px; border: 1px solid #cfd9e4; border-radius: 10px; background: #fff; }
.form input:focus, .form textarea:focus { outline: 2px solid #9cc3e6; border-color: var(--navy); }
.form .hp { position: absolute; left: -9999px; }
.msg { padding: 12px 14px; border-radius: 10px; font-size: 14px; display: none; }
.msg.ok { display: block; background: #e3f3f1; color: #0f6a60; }
.msg.err { display: block; background: #fdecec; color: #a12626; }

footer { background: var(--ink); color: #9fb0c2; padding: 36px 0; font-size: 14px; }
footer .wrap { display: flex; justify-content: space-between; gap: 20px; flex-wrap: wrap; }
footer .brand { color: #fff; font-size: 18px; }

/* Login */
.auth { min-height: 100vh; display: grid; grid-template-columns: 1fr 1fr; }
.auth-side { background: linear-gradient(160deg, var(--navy) 0%, #0a2f52 100%); color: #dbe7f3; padding: 48px; display: flex; flex-direction: column; justify-content: space-between; }
.auth-side .brand { color: #fff; }
.auth-side h2 { color: #fff; font-size: 32px; line-height: 1.2; letter-spacing: -.6px; max-width: 420px; }
.auth-side ul { padding-left: 18px; line-height: 2; }
.auth-main { display: grid; place-items: center; padding: 32px 20px; background: var(--bg); }
.auth-box { width: 100%; max-width: 380px; background: #fff; border-radius: 18px; padding: 32px; box-shadow: var(--shadow); }
.auth-box h1 { font-size: 26px; margin: 0 0 6px; letter-spacing: -.4px; }
.auth-box p { color: var(--muted); margin: 0 0 22px; }

@media (max-width: 960px) {
  .hero .wrap, .contact, .auth { grid-template-columns: 1fr; }
  .hero h1 { font-size: 38px; }
  .grid-3 { grid-template-columns: 1fr 1fr; }
  .steps, .stats { grid-template-columns: 1fr 1fr; }
  .auth-side { display: none; }
}
@media (max-width: 720px) {
  .nav { display: none; position: absolute; top: 68px; left: 0; right: 0; background: #fff; flex-direction: column; padding: 16px 20px; gap: 14px; border-bottom: 1px solid var(--line); }
  .nav.open { display: flex; }
  .menu-btn { display: block; }
  .top .btn-primary.hide-sm { display: none; }
  .grid-3, .grid-2, .steps, .stats { grid-template-columns: 1fr; }
  section { padding: 56px 0; }
  .sec-head h2 { font-size: 28px; }
  .hero { padding: 44px 0; }
  .hero h1 { font-size: 32px; }
  .kpi strong { font-size: 18px; }
}

.show-sm { display: none; }
@media (max-width: 720px) { .show-sm { display: inline; } .top .btn.hide-sm { display: none; } }