:root { color-scheme: light dark; --bg: #f7f5f2; --fg: #1c1b19; --muted: #6b675f; --line: #d9d4cb; --accent: #1c1b19; --accent-fg: #fff; }
@media (prefers-color-scheme: dark) { :root { --bg: #161513; --fg: #f1eee8; --muted: #a09a8f; --line: #34312c; --accent: #f1eee8; --accent-fg: #161513; } }
* { box-sizing: border-box; }
body { margin: 0; min-height: 100dvh; display: grid; place-items: center; padding: 16px; background: var(--bg); color: var(--fg); font: 16px/1.5 system-ui, -apple-system, "Segoe UI", sans-serif; }
main { width: 100%; max-width: 360px; }
h1 { margin: 0 0 24px; font-size: 1.4rem; font-weight: 600; letter-spacing: .02em; }
form { display: grid; gap: 14px; }
label { display: grid; gap: 6px; color: var(--muted); font-size: .9rem; }
input { font: inherit; padding: 10px 12px; border: 1px solid var(--line); border-radius: 8px; background: transparent; color: var(--fg); }
input:focus-visible, button:focus-visible { outline: 2px solid var(--fg); outline-offset: 2px; }
button { font: inherit; padding: 10px 14px; border: 0; border-radius: 8px; background: var(--accent); color: var(--accent-fg); cursor: pointer; }
[role="alert"] { margin: 0 0 16px; padding: 10px 12px; border-radius: 8px; border: 1px solid #b3261e; color: #b3261e; }