:root { --bg: #F7F2E8; --surface: #FFFDF8; --line: #E3D7C3; --ink: #2B2420; --muted: #7A6C60; --accent: #3A47A6; --accent-ink: #2E3A93; --bad: #912D27; --good: #215C38; }
@media (prefers-color-scheme: dark) { :root { --bg: #141729; --surface: #1D2137; --line: #343A5A; --ink: #F2EDE5; --muted: #A9A3B6; --accent: #5F6BD6; --accent-ink: #C5CBFF; --bad: #FFA59E; --good: #9DE0B6; } }
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 500 17px/1.55 "Golos Text", system-ui, -apple-system, sans-serif; }
main { max-width: 720px; margin: 0 auto; padding: 32px 16px 64px; }
header { display: flex; align-items: baseline; justify-content: space-between; gap: 16px; margin-bottom: 28px; }
.logo { font: 700 30px/1 Rubik, system-ui, sans-serif; color: var(--accent); text-decoration: none; }
nav a { color: var(--muted); margin-left: 16px; font-weight: 600; text-decoration: none; }
nav a:hover { color: var(--ink); }
h1 { font: 700 32px/1.15 Rubik, system-ui, sans-serif; margin: 0 0 12px; }
h2 { font: 700 21px/1.25 Rubik, system-ui, sans-serif; margin: 32px 0 8px; }
p, li { margin: 0 0 10px; }
.muted { color: var(--muted); }
a { color: var(--accent-ink); }
hr { border: 0; border-top: 1px solid var(--line); margin: 40px 0; }
form { display: flex; flex-direction: column; gap: 10px; margin-top: 16px; }
textarea, input { width: 100%; padding: 12px 14px; border: 1.5px solid var(--line); border-radius: 12px; background: var(--surface); color: var(--ink); font: inherit; }
textarea { min-height: 140px; resize: vertical; }
button { align-self: flex-start; padding: 12px 22px; border: 0; border-radius: 999px; background: var(--accent); color: #fff; font: 700 16px Rubik, system-ui, sans-serif; cursor: pointer; }
button:disabled { opacity: .6; }
#out { font-weight: 600; min-height: 1.4em; }
.ok { color: var(--good); } .err { color: var(--bad); }