:root { color-scheme: light; --bg:#f5f6f7; --paper:#fff; --ink:#101318; --muted:#6d7480; --line:#dfe3e8; --blue:#146ff5; --shadow:0 24px 70px rgba(25,32,42,.1); }
* { box-sizing: border-box; }
html { min-width: 320px; }
body { min-height: 100vh; margin: 0; color: var(--ink); background: var(--bg); font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; letter-spacing: 0; }
.login-header { display: flex; width: min(1160px, calc(100% - 40px)); min-height: 76px; margin: 0 auto; align-items: center; justify-content: space-between; border-bottom: 1px solid var(--line); }
.login-brand { display: flex; align-items: center; gap: 10px; text-decoration: none; }
.login-brand img { width: 38px; height: 38px; border-radius: 6px; object-fit: contain; background: #fff; }
.login-brand span { display: grid; gap: 2px; }
.login-brand strong { font-size: 14px; }
.login-brand small { color: var(--muted); font-size: 10px; }
.login-header > a:last-child { font-size: 11px; font-weight: 730; text-decoration: none; }
.login-header > a:last-child span { color: var(--blue); }
.login-shell { display: grid; width: min(1160px, calc(100% - 40px)); min-height: calc(100vh - 77px); margin: 0 auto; grid-template-columns: minmax(0, 1.1fr) minmax(340px, .9fr); align-items: center; gap: 90px; padding: 70px 0 90px; }
.login-intro { max-width: 680px; }
.login-intro > p, .login-panel > p { margin: 0 0 13px; color: var(--blue); font-size: 10px; font-weight: 820; text-transform: uppercase; }
.login-intro h1 { margin: 0; font-size: 68px; font-weight: 610; line-height: .98; }
.login-intro > span { display: block; max-width: 540px; margin-top: 24px; color: var(--muted); font-size: 14px; line-height: 1.65; }
.login-panel { border: 1px solid var(--line); border-radius: 8px; padding: 28px; background: var(--paper); box-shadow: var(--shadow); }
.login-panel h2 { margin: 0; font-size: 25px; line-height: 1.15; }
.login-error { margin-top: 20px; border-left: 3px solid #c84653; border-radius: 4px; padding: 10px 12px; color: #8b2732; background: #fff2f3; font-size: 11px; }
.login-panel form { display: grid; margin-top: 24px; gap: 14px; }
.login-panel label { display: grid; gap: 7px; color: var(--muted); font-size: 10px; font-weight: 720; }
.login-panel input { width: 100%; min-height: 48px; border: 1px solid var(--line); border-radius: 6px; outline: 0; padding: 0 13px; color: var(--ink); background: #fff; font: inherit; }
.login-panel input:focus { border-color: var(--blue); box-shadow: 0 0 0 3px rgba(20,111,245,.1); }
.login-panel button { display: flex; min-height: 50px; margin-top: 5px; align-items: center; justify-content: space-between; border: 0; border-radius: 6px; padding: 0 15px; color: #fff; background: var(--ink); font: inherit; font-size: 11px; font-weight: 760; cursor: pointer; }
@media (max-width: 760px) {
    .login-header, .login-shell { width: calc(100% - 28px); }
    .login-shell { grid-template-columns: 1fr; gap: 38px; padding: 42px 0 58px; }
    .login-intro h1 { font-size: 42px; }
    .login-intro > span { font-size: 13px; }
    .login-panel { padding: 20px; }
}