:root { --bg: #f3f5f7; --panel: #fff; --line: #dde2e8; --fg: #16202b; --muted: #5d6b7a; --accent: #0f8a6a; --bad: #c2412d; color-scheme: light; }
@media (prefers-color-scheme: dark) { :root { --bg: #0e141b; --panel: #151d26; --line: #26323f; --fg: #e6edf3; --muted: #93a1b0; --accent: #36c497; --bad: #f07160; color-scheme: dark; } }
* { box-sizing: border-box; }
html, body { margin: 0; height: 100%; }
body { background: var(--bg); color: var(--fg); font-family: ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif; display: grid; place-items: center; padding: 16px; }
.box { width: 100%; max-width: 360px; background: var(--panel); border: 1px solid var(--line); border-radius: 18px; padding: 28px 24px; }
.logo { width: 44px; height: 44px; border-radius: 12px; background: var(--accent); display: grid; place-items: center; }
.logo svg { width: 26px; height: 26px; }
h1 { margin: 16px 0 0; font-size: 24px; letter-spacing: -0.02em; }
.sub { margin: 2px 0 20px; color: var(--muted); }
form { display: flex; flex-direction: column; gap: 8px; }
label { font-size: 13px; font-weight: 600; color: var(--muted); }
input { font: inherit; font-size: 16px; padding: 11px 12px; border-radius: 10px; border: 1px solid var(--line); background: var(--bg); color: var(--fg); }
input:focus-visible, button:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
button { margin-top: 6px; font: inherit; font-weight: 650; padding: 11px; border: 0; border-radius: 10px; background: var(--accent); color: #fff; cursor: pointer; }
.msg { color: var(--bad); font-size: 14px; margin: 14px 0 0; }
.msg[hidden] { display: none; }