:root { --bg: #0a0b0b; --panel: #141716; --line: #2a2f2c; --text: #f1f1ec; --muted: #b0b5b0; --accent: #8fd12f; --red: #ff8273; color-scheme: dark; }
@media (prefers-color-scheme: light) { :root { --bg: #f3f4f1; --panel: #fff; --line: #dfe2dd; --text: #131515; --muted: #4c524e; --red: #b3261e; color-scheme: light; } }
* { box-sizing: border-box; }
body { margin: 0; min-height: 100vh; display: grid; place-items: center; background: var(--bg); color: var(--text);
  font: 17px/1.5 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif; padding: 16px; }
.box { width: 100%; max-width: 400px; background: var(--panel); border: 1px solid var(--line); border-radius: 16px; padding: 24px; }
h1 { margin: 0 0 8px; font-size: 24px; }
p { color: var(--muted); margin: 0 0 16px; }
.err { color: var(--red); font-weight: 600; }
label { display: block; font-weight: 650; margin: 0 0 6px; }
input { width: 100%; min-height: 48px; border-radius: 12px; border: 1px solid var(--line); background: transparent; color: var(--text); padding: 0 14px; font: inherit; margin: 0 0 14px; }
button { width: 100%; min-height: 48px; border: 0; border-radius: 12px; background: var(--accent); color: #0a0b0b; font: inherit; font-weight: 750; cursor: pointer; }
:focus-visible { outline: 3px solid #86bdff; outline-offset: 2px; }