@font-face { font-family: "Jakarta"; src: url("fonts/PlusJakartaSans-Regular.ttf") format("truetype"); font-weight: 400; font-display: swap; }
@font-face { font-family: "Jakarta"; src: url("fonts/PlusJakartaSans-SemiBold.ttf") format("truetype"); font-weight: 600; font-display: swap; }
@font-face { font-family: "Jakarta"; src: url("fonts/PlusJakartaSans-ExtraBold.ttf") format("truetype"); font-weight: 800; font-display: swap; }

:root {
  --red: #E53935;
  --red-dark: #C62828;
  --red-soft: #FDECEA;
  --navy: #14213D;
  --navy-soft: #EBEEF5;
  --bg: #F4F6FA;
  --card: #FFFFFF;
  --text: #14213D;
  --muted: #6B7385;
  --border: #E3E7EE;
  --ok: #2E7D32;
  --ok-soft: #E6F4EA;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0E1527;
    --card: #17213A;
    --text: #EEF1F7;
    --muted: #A3ABBD;
    --border: #2A3550;
    --navy-soft: #22304F;
    --red-soft: #3A1F25;
    --ok-soft: #1C3324;
  }
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 400 17px/1.6 "Jakarta", system-ui, -apple-system, "Segoe UI", sans-serif;
}
a { color: var(--red); }
.wrap { max-width: 760px; margin: 0 auto; padding: 0 16px; }

header.top { padding: 20px 0; }
header.top .wrap { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; color: var(--text); font-weight: 800; font-size: 22px; letter-spacing: -0.02em; }
.brand img { width: 40px; height: 40px; border-radius: 11px; }
.brand b { font-weight: 800; }
.brand span { color: var(--red); }
nav.links { display: flex; gap: 16px; flex-wrap: wrap; font-size: 15px; }
nav.links a { color: var(--muted); text-decoration: none; }
nav.links a:hover { color: var(--text); }

.hero { text-align: center; padding: 24px 0 8px; }
.hero h1 { font-size: clamp(30px, 7vw, 46px); line-height: 1.15; font-weight: 800; letter-spacing: -0.03em; margin: 0 0 12px; }
.hero p.lead { color: var(--muted); font-size: 19px; margin: 0 auto 24px; max-width: 520px; }
.hero img.art { width: min(360px, 80%); height: auto; border-radius: 24px; }

.card { background: var(--card); border: 1px solid var(--border); border-radius: 20px; padding: 24px; margin: 20px 0; }
.card h2 { margin-top: 0; }
.features { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 14px; margin: 28px 0; }
.features .card { margin: 0; padding: 20px; }
.features h3 { margin: 0 0 6px; font-size: 18px; }
.features p { margin: 0; color: var(--muted); font-size: 15px; }

.doc h1 { font-size: 32px; font-weight: 800; letter-spacing: -0.02em; margin: 12px 0 4px; }
.doc .date { color: var(--muted); font-size: 15px; margin-bottom: 20px; }
.doc h2 { font-size: 21px; margin: 28px 0 8px; }
.doc li { margin: 4px 0; }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  min-height: 52px; padding: 0 24px; border-radius: 16px; border: 0;
  background: var(--red); color: #fff; font: 600 17px "Jakarta", system-ui, sans-serif;
  text-decoration: none; cursor: pointer; width: 100%;
}
.btn:hover { background: var(--red-dark); }
.btn:disabled { opacity: .55; cursor: default; }
.btn.secondary { background: var(--navy-soft); color: var(--text); }

label { display: block; font-weight: 600; font-size: 15px; margin: 14px 0 6px; }
input[type=password], input[type=text] {
  width: 100%; min-height: 52px; padding: 0 16px; border-radius: 14px;
  border: 1px solid var(--border); background: var(--bg); color: var(--text);
  font: 400 17px "Jakarta", system-ui, sans-serif;
}
input:focus { outline: 2px solid var(--navy); outline-offset: 0; }
.msg { border-radius: 14px; padding: 14px 16px; margin: 16px 0 0; font-size: 15px; }
.msg.err { background: var(--red-soft); color: var(--red-dark); }
.msg.ok { background: var(--ok-soft); color: var(--ok); }
@media (prefers-color-scheme: dark) { .msg.err { color: #FF8A80; } .msg.ok { color: #81C784; } }
.code {
  word-break: break-all; background: var(--bg); border: 1px dashed var(--border);
  border-radius: 12px; padding: 12px 14px; font-size: 14px; margin: 12px 0;
}
ol.steps { padding-left: 22px; }
ol.steps li { margin: 8px 0; }
.small { color: var(--muted); font-size: 14px; }

footer.bottom { color: var(--muted); font-size: 14px; padding: 32px 0 40px; text-align: center; }
footer.bottom a { color: var(--muted); }
.doc .card h2 { margin-top: 0; }
@media (max-width: 560px) {
  header.top .wrap { flex-direction: column; align-items: flex-start; }
  nav.links { gap: 14px; font-size: 14px; }
}