:root { --bg: #F3F4F8; --card: #FFFFFF; --ink: #171B2C; --ink-2: #474D63; --line: #E0E3ED; --pen: #5B3FD9; --pen-ink: #FFFFFF; --bad: #BC2A37; }
@media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) { --bg: #10121A; --card: #181B26; --ink: #ECEEF6; --ink-2: #B9BED0; --line: #2A2E3E; --pen: #A796FF; --pen-ink: #120E2B; --bad: #F4808A; color-scheme: dark; } }
:root[data-theme="dark"] { --bg: #10121A; --card: #181B26; --ink: #ECEEF6; --ink-2: #B9BED0; --line: #2A2E3E; --pen: #A796FF; --pen-ink: #120E2B; --bad: #F4808A; color-scheme: dark; }
*, *::before, *::after { box-sizing: border-box; }
html, body { height: 100%; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 400 16px/1.55 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; }
.login { min-height: 100%; display: grid; place-items: center; padding: 24px 16px; }
form { width: min(100%, 400px); background: var(--card); border: 1px solid var(--line); border-radius: 14px; padding: 28px 24px; display: grid; gap: 10px; }
.eyebrow { margin: 0; font: 600 12px/1.4 ui-monospace, Menlo, monospace; letter-spacing: 0.08em; text-transform: uppercase; color: var(--pen); }
h1 { margin: 0; font-size: 30px; line-height: 1.1; letter-spacing: -0.02em; }
.lede { margin: 0 0 8px; color: var(--ink-2); font-size: 15px; }
label { font-weight: 600; font-size: 14px; }
input { font: inherit; padding: 10px 12px; border: 1px solid var(--line); border-radius: 8px; background: var(--bg); color: var(--ink); }
input:focus { outline: 3px solid var(--pen); outline-offset: 1px; }
button { font: inherit; font-weight: 600; padding: 11px 16px; border: 0; border-radius: 8px; background: var(--pen); color: var(--pen-ink); cursor: pointer; margin-top: 6px; }
.err { margin: 0; color: var(--bad); font-weight: 600; font-size: 14px; }