:root {
    color-scheme: light;
    --login-background: #f7f6f3;
    --login-ink: #26395d;
    --login-button: #3d509a;
    --login-accent: #df7735;
}
* { box-sizing: border-box; }
body { margin: 0; color: var(--login-ink); background: var(--login-background); font-family: 'Quicksand', sans-serif; }
.login-layout { display: grid; grid-template-columns: minmax(0, 2.1fr) minmax(400px, 1fr); min-height: 100vh; min-height: 100svh; }
.login-image { background: url('/images/backgrounds/bg-2.jpg') center center / cover no-repeat; }
.login-panel { display: flex; align-items: center; padding: 64px 50px; }
.login-content { width: 100%; max-width: 540px; margin: auto; }
.login-logo { display: block; width: auto; max-width: min(100%, 320px); max-height: 100px; object-fit: contain; object-position: left center; }
.login-logo-school { width: 200px; height: 128px; max-height: none; padding: 14px; border-radius: 6px; object-position: center; }
.school-name { margin: 18px 0 0; font-size: 17px; line-height: 1.5; font-weight: 500; }
h1 { margin: 32px 0; font-size: clamp(36px, 2.7vw, 52px); line-height: 1.08; font-weight: 700; letter-spacing: -1px; }
.login-accent { width: 76px; height: 5px; border-radius: 2px; background: var(--login-accent); margin-bottom: 26px; }
.login-intro, .login-help { font-size: 18px; font-weight: 500; line-height: 1.6; margin: 0 0 28px; }
.login-help { margin-bottom: 36px; }
.login-button { position: relative; display: flex; align-items: center; justify-content: center; gap: 18px; min-height: 56px; padding: 15px 48px; border-radius: 6px; background: var(--login-button); color: white; font-family: 'Open Sans', sans-serif; font-size: 17px; font-weight: 700; line-height: 1.5; text-decoration: none; text-align: center; transition: background-color 150ms ease; }
.microsoft-icon { position: absolute; left: 24px; width: 21px; height: 21px; }
.login-button:hover { background: #304180; }
.login-button:focus-visible { outline: 3px solid var(--login-ink); outline-offset: 5px; }
@media (max-width: 1100px) {
    .login-layout { grid-template-columns: minmax(0, 1.2fr) minmax(380px, 1fr); }
    .login-panel { padding: 48px 32px; }
}
@media (max-width: 700px) {
    .login-layout { grid-template-columns: minmax(0, 1fr); }
    .login-image { height: 24vh; min-height: 150px; max-height: 220px; }
    .login-panel { padding: 36px 24px 48px; }
    h1 { font-size: 38px; margin: 28px 0; }
    .login-logo-school { width: 160px; height: 100px; }
    .login-intro, .login-help { font-size: 17px; }
}
@media (prefers-reduced-motion: reduce) { .login-button { transition: none; } }