:root { color-scheme: light dark; --bg:#0b0d12; --card:#141821; --fg:#e8eaf0; --muted:#9aa3b2; --accent:#6366f1; --g1:#2dd4bf; --g2:#6366f1; --g3:#d946ef; --line:#262c38; --err:#ff8a80; }
@media (prefers-color-scheme: light) { :root { --bg:#f6f7fb; --card:#fff; --fg:#12161f; --muted:#5b6474; --accent:#6366f1; --line:#e2e5ec; --err:#c62828; } }
* { box-sizing: border-box; }
html, body { margin: 0; background: var(--bg); color: var(--fg); font: 16px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; }
body { min-height: 100svh; display: grid; place-items: center; padding: 24px 16px; }
.card { width: 100%; max-width: 420px; background: var(--card); border: 1px solid var(--line); border-radius: 16px; padding: 28px 24px; }
.brand { display: flex; align-items: center; gap: 10px; color: var(--muted); font-weight: 600; margin-bottom: 20px; }
.brand img { width: 32px; height: 32px; display: block; }
h1 { margin: 0 0 4px; font-size: 1.6rem; letter-spacing: -0.02em; }
.muted { color: var(--muted); }
.small { font-size: .85rem; margin-top: 18px; }
.scopes { margin: 12px 0 16px; padding-left: 20px; color: var(--muted); font-size: .9rem; }
label { display: block; font-size: .9rem; margin: 16px 0 6px; color: var(--muted); }
input { width: 100%; padding: 12px; border-radius: 10px; border: 1px solid var(--line); background: transparent; color: var(--fg); font-size: 1rem; }
button { width: 100%; margin-top: 12px; padding: 12px; border-radius: 10px; font-size: 1rem; font-weight: 600; cursor: pointer; border: 1px solid var(--line); }
.primary { background: linear-gradient(135deg, var(--g1), var(--g2) 50%, var(--g3)); color: #fff; border-color: transparent; }
a { color: var(--g2); }
a:hover { color: var(--g3); }
input:focus { outline: 2px solid var(--g2); outline-offset: 1px; border-color: transparent; }
.secondary { background: transparent; color: var(--fg); }
button:disabled { opacity: .6; cursor: wait; }
.divider { display: flex; align-items: center; gap: 12px; margin: 20px 0 8px; color: var(--muted); font-size: .85rem; }
.divider::before, .divider::after { content: ""; flex: 1; height: 1px; background: var(--line); }
#google { margin-top: 12px; display: flex; justify-content: center; }
.error { color: var(--err); }