:root { color-scheme: dark; --bg: #0f1115; --panel: #161a20; --line: #2a313a; --text: #e6e9ee; --muted: #9aa4b2; --accent: #2f7cf6; --danger: #f26d6d;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif; }
* { box-sizing: border-box; }
html, body { height: 100%; }
body { margin: 0; background: var(--bg); color: var(--text); font: 14px/1.5 var(--font); -webkit-font-smoothing: antialiased; }
.login { min-height: 100%; display: grid; place-content: center; gap: 22px; padding: 24px 16px; }
.brand { display: flex; align-items: center; gap: 12px; justify-content: center; }
.brand img { border-radius: 11px; }
.brand b { display: block; font-size: 19px; letter-spacing: -.01em; }
.brand small { display: block; color: var(--muted); font-size: 12.5px; }
.card { width: min(380px, calc(100vw - 32px)); display: grid; gap: 14px; padding: 26px; background: var(--panel); border: 1px solid var(--line); border-radius: 12px; }
h1 { margin: 0 0 4px; font-size: 18px; font-weight: 650; }
label { display: grid; gap: 6px; }
label span { font-size: 13px; color: var(--muted); }
input { height: 42px; padding: 0 12px; font: inherit; font-size: 15px; color: var(--text); background: #0f1218; border: 1px solid var(--line); border-radius: 8px; outline: none; }
input:focus { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(47, 124, 246, .2); }
button { height: 42px; margin-top: 6px; font: inherit; font-weight: 600; color: #fff; background: var(--accent); border: 0; border-radius: 8px; cursor: pointer; }
button:hover { background: #2a6fdc; }
button:disabled { opacity: .6; cursor: default; }
.err { margin: 0; padding: 10px 12px; font-size: 13.5px; color: var(--danger); background: rgba(242, 109, 109, .1); border: 1px solid rgba(242, 109, 109, .35); border-radius: 8px; }