:root { --bg: #f4f6f4; --card: #fff; --text: #1b1f1c; --muted: #5d665f; --brand: #1d6b4f; --line: #dfe5e0; --error: #b3261e; }
@media (prefers-color-scheme: dark) { :root { --bg: #111512; --card: #1a201c; --text: #e3e8e4; --muted: #9ba59e; --brand: #6fd3a8; --line: #2b332d; --error: #f2b8b5; } }
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--text); font: 16px/1.6 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; }
main { max-width: 720px; margin: 0 auto; padding: 32px 16px 64px; }
header { display: flex; align-items: center; gap: 10px; margin-bottom: 24px; }
header .logo { width: 36px; height: 36px; border-radius: 10px; background: var(--brand); color: var(--bg); display: grid; place-items: center; font-weight: 700; }
header a { color: var(--brand); font-weight: 700; font-size: 20px; text-decoration: none; }
h1 { font-size: 28px; line-height: 1.25; margin: 0 0 8px; }
h2 { font-size: 19px; margin: 28px 0 8px; }
.muted { color: var(--muted); }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 16px; padding: 20px; margin: 16px 0; }
a { color: var(--brand); }
label { display: block; font-weight: 600; margin: 12px 0 4px; }
input { width: 100%; padding: 12px; border-radius: 10px; border: 1px solid var(--line); background: var(--bg); color: var(--text); font-size: 16px; }
button { margin-top: 16px; padding: 12px 20px; border: 0; border-radius: 999px; background: var(--error); color: #fff; font-size: 16px; font-weight: 600; cursor: pointer; }
.error { color: var(--error); font-weight: 600; }
footer { margin-top: 40px; font-size: 14px; }
footer a { margin-right: 16px; }