:root { --bg: #f6f4ef; --surface: #fff; --text: #1f2421; --muted: #5f6b65; --line: #e2dfd6; --brand: #29557e; --brand-text: #fff; --danger: #a12a2a; --ok: #1d6b45; }
@media (prefers-color-scheme: dark) {
  :root { --bg: #14181c; --surface: #1d2329; --text: #eceff1; --muted: #a2adb5; --line: #2e373f; --brand: #6aa0d4; --brand-text: #0f1a24; --danger: #ff9d9d; --ok: #7fd6a4; }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--text); font: 16px/1.6 system-ui, -apple-system, "Segoe UI", sans-serif; }
a { color: var(--brand); }
.hero { background: #29557e; color: #fff; text-align: center; padding: 3rem 1.2rem 2.4rem; }
.hero h1 { font-size: 2.4rem; margin: .8rem 0 .2rem; letter-spacing: .01em; }
.hero .tagline { font-size: 1.15rem; margin: 0 0 1.2rem; opacity: .9; }
.hero .lead { max-width: 34rem; margin: 0 auto 1.4rem; opacity: .95; }
.hero .btn { background: #fff; color: #29557e; }
main { max-width: 42rem; margin: 0 auto; padding: 0 1.2rem 2rem; }
h2 { font-size: 1.35rem; margin: 2.2rem 0 .6rem; }
.features, .steps { padding-left: 1.2rem; }
.features li, .steps li { margin: .5rem 0; }
form { background: var(--surface); border: 1px solid var(--line); border-radius: 12px; padding: 1.2rem; }
form.inline { display: flex; flex-wrap: wrap; gap: .8rem; align-items: flex-end; }
form.inline label { flex: 1 1 14rem; margin: 0; }
label { display: block; margin: .8rem 0; font-size: .95rem; color: var(--muted); }
input, textarea { display: block; width: 100%; margin-top: .25rem; padding: .6rem .7rem; font: inherit; font-size: max(16px, 1rem); color: var(--text);
                  background: var(--bg); border: 1px solid var(--line); border-radius: 8px; min-height: 44px; }
.check { display: flex; gap: .6rem; align-items: flex-start; color: var(--text); }
.check input { width: 22px; min-height: 22px; margin: .15rem 0 0; flex: none; }
.robot { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.btn { display: inline-block; font: inherit; font-weight: 600; padding: .65rem 1.3rem; border-radius: 8px; border: 0; cursor: pointer; min-height: 44px;
       background: var(--brand); color: var(--brand-text); text-decoration: none; }
.btn.secondary { background: var(--surface); color: var(--brand); border: 1px solid var(--brand); }
.btn:disabled { opacity: .6; cursor: default; }
.status { min-height: 1.5rem; margin: .8rem 0 0; }
.status.error { color: var(--danger); } .status.ok { color: var(--ok); } .status.info { color: var(--muted); }
footer { text-align: center; color: var(--muted); font-size: .9rem; padding: 1rem 1.2rem 3rem; }
.doc { max-width: 42rem; margin: 0 auto; padding: 2rem 1.2rem 3rem; }
.doc h1 { font-size: 1.6rem; }