:root { --plum-900: #2A1733; --plum-600: #5C3A6E; --gold: #B8862F; --gold-bright: #D9B45C; --ink: #241A2C; --muted: #6B6072; --line: #E6DEEA; --paper: #FBF9FC;
  --serif: 'Fraunces', Georgia, serif; --sans: 'Jost', 'Avenir Next', 'Segoe UI', system-ui, sans-serif; }
* { box-sizing: border-box; }
body { margin: 0; min-height: 100vh; font-family: var(--sans); color: var(--ink); background: var(--paper); }
.login { min-height: 100vh; display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 6fr); }
.login-brand { background: linear-gradient(150deg, #2A1733 0%, #3E2150 100%); color: #EDE4F2; padding: 56px 56px 40px; display: flex; flex-direction: column; justify-content: space-between; }
.brand-row { display: flex; align-items: center; gap: 12px; }
.mark { width: 42px; height: 42px; border-radius: 10px; display: grid; place-items: center; background: var(--gold-bright); color: var(--plum-900); font-family: var(--serif); font-weight: 600; }
.word { font-family: var(--serif); font-size: 22px; color: #fff; }
.tagline { font-family: var(--serif); font-size: clamp(26px, 3vw, 38px); line-height: 1.2; color: #fff; max-width: 16ch; margin: 0; }
.powered { font-size: 13px; opacity: 0.7; margin: 0; }
.login-card { align-self: center; justify-self: center; width: min(420px, 100% - 48px); padding: 40px 0; }
h1 { font-family: var(--serif); font-weight: 500; font-size: 32px; margin: 0 0 6px; color: var(--plum-900); }
.sub { color: var(--muted); margin: 0 0 24px; }
.providers { display: flex; flex-direction: column; gap: 12px; }
.provider { display: flex; align-items: center; justify-content: center; gap: 12px; padding: 13px 16px; border: 1px solid var(--line); border-radius: 10px;
  background: #fff; color: var(--ink); text-decoration: none; font-weight: 500; font-size: 15.5px; transition: border-color 120ms ease, box-shadow 120ms ease; }
.provider:hover { border-color: var(--plum-600); box-shadow: 0 4px 14px rgba(42, 23, 51, 0.08); }
.provider:focus-visible { outline: 2px solid var(--gold); outline-offset: 2px; }
.provider svg { width: 20px; height: 20px; }
.msg { padding: 10px 14px; border-radius: 8px; background: #F8E4E3; color: #7A2323; margin-bottom: 18px; font-size: 14px; }
.msg.ok { background: #E3F1EC; color: #1F5B4D; }
.dev { margin-top: 28px; padding-top: 18px; border-top: 1px dashed var(--line); }
.dev-note { font-size: 13px; color: var(--muted); margin: 0 0 10px; }
.dev ul { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 6px; }
.dev a { display: block; padding: 9px 12px; border: 1px solid var(--line); border-radius: 8px; text-decoration: none; color: var(--ink); background: #fff; }
.dev a:hover { border-color: var(--plum-600); }
.dev strong { display: block; font-weight: 500; }
.dev span { font-size: 12.5px; color: var(--muted); }
.help { margin-top: 28px; font-size: 13.5px; color: var(--muted); }
.help a { color: var(--plum-600); }
@media (max-width: 820px) { .login { grid-template-columns: 1fr; } .login-brand { padding: 28px 24px; gap: 18px; } .tagline { font-size: 24px; } }