:root { color-scheme: light; font-family: Arial, Helvetica, sans-serif; color: #183b31; }
* { box-sizing: border-box; }
body { margin: 0; min-height: 100vh; display: grid; place-items: center; padding: 32px 20px; background: #174b39; isolation: isolate; }
body::before { content: ''; position: fixed; inset: 0; background: linear-gradient(100deg, rgba(9, 38, 30, .7), rgba(9, 38, 30, .22)); z-index: -1; }
.campus-background { position: fixed; inset: 0; width: 100%; height: 100%; object-fit: cover; z-index: -2; }
.reset-card { width: 100%; max-width: 460px; padding: 38px; background: #fff; border-radius: 16px; box-shadow: 0 16px 64px #10271e4d; }
.school-name { color: #287653; font-size: 13px; line-height: 1.5; font-weight: 700; margin: 0 0 24px; }
h1 { font-size: 29px; line-height: 1.15; margin: 0 0 16px; }
.intro { color: #52635d; line-height: 1.6; margin: 0 0 24px; }
label { display: block; font-size: 14px; font-weight: 700; margin: 18px 0 8px; }
input:not([type=hidden]) { width: 100%; min-height: 48px; border: 1px solid #acbcb4; border-radius: 6px; padding: 12px; font: inherit; }
input:focus, button:focus-visible, a:focus-visible { outline: 3px solid #75ba9b; outline-offset: 3px; }
button { width: 100%; margin-top: 24px; padding: 14px; font: inherit; font-weight: 700; color: #fff; background: #246447; border: 0; border-radius: 6px; cursor: pointer; }
button:hover { background: #174b35; }
.hint { font-size: 12px; line-height: 1.5; color: #56685f; margin: 8px 0 18px; }
.notice { padding: 14px; border-radius: 6px; line-height: 1.5; font-size: 14px; }
.success { color: #20553b; background: #e5f4ec; }
.error { color: #832e29; background: #fcebe8; }
.back-link { margin: 22px 0 0; text-align: center; font-size: 14px; }
a { color: #246447; text-underline-offset: 3px; }
@media (max-width: 480px) { body { padding: 20px 14px; } .reset-card { padding: 28px 22px; } h1 { font-size: 26px; } }