/* Sign-in page for the lecture slides, served by the Worker. Builds on plate.css. */
body.login-page { background: linear-gradient(135deg, var(--ece-navy) 0%, var(--ece-deep) 100%); min-height: 100vh; min-height: 100svh; color: #fff; }
.login { min-height: 100vh; min-height: 100svh; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 1.5rem; padding: 2rem 1rem; }
.login-name { display: inline-block; font: 600 1.1rem var(--serif); color: #fff; text-decoration: none; padding-block: .7rem; margin-block: -.7rem; }
.login-card { width: min(26rem, 100%); background: #fff; color: var(--ink); border-radius: 10px; padding: 2rem 2rem 1.75rem; box-shadow: 0 24px 60px rgba(4, 10, 40, .35); display: grid; gap: 1rem; }
.login-card .kind { font: 600 .85rem var(--sans); color: #B8531D; margin: 0; }
.login-card h1 { font: 600 1.55rem/1.2 var(--serif); margin: 0; }
.login-help, .login-foot { margin: 0; color: var(--ink-2); font-size: .95rem; }
.login-foot { font-size: .85rem; }
.login-error { margin: 0; padding: .7rem .9rem; border-radius: 6px; background: #FDF0E8; color: #8A3A10; font-size: .92rem; border: 1px solid #F3C4A5; }
.login-card label { display: grid; gap: .35rem; font-weight: 500; font-size: .92rem; }
.login-card input { font: 400 1rem var(--sans); padding: .7rem .8rem; border: 1px solid var(--rule); border-radius: 6px; min-height: 2.75rem; }
.login-card input:focus { outline: 3px solid rgba(233,113,50,.35); border-color: var(--ece-orange); }
.login-card button { font: 600 1rem var(--sans); background: var(--ece-navy); color: #fff; border: 0; border-radius: 6px; padding: .8rem; min-height: 2.9rem; cursor: pointer; }
.login-card button:hover { background: var(--ece-deep); }
.login-back { display: inline-block; color: var(--on-navy); font-size: .92rem; padding-block: .65rem; margin-block: -.65rem; }

/* The slides index, after sign-in. */
body.slides-index { background: #F7F8FC; }
.si-head { background: linear-gradient(104deg, var(--ece-navy) 0%, var(--ece-deep) 80%); color: #fff; }
.si-head .wrap { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: .5rem 1.5rem; padding-block: 1.1rem; }
.si-who { margin: 0; color: var(--on-navy); font-size: .92rem; }
.si-who strong { color: #fff; }
.si-who a { color: #fff; }
.si-main { max-width: 52rem; padding-block: 3rem 4rem; }
.si-main .kind { font: 600 .9rem var(--sans); color: #B8531D; margin: 0 0 .5rem; }
.si-main h1 { font: 600 clamp(1.9rem, 4vw, 2.6rem)/1.1 var(--serif); margin: 0 0 .75rem; }
.si-note { color: var(--ink-2); margin: 0 0 2rem; }
.si-list { list-style: none; margin: 0; padding: 0; display: grid; gap: .75rem; }
.si-list li { display: grid; grid-template-columns: 2.5rem 1fr auto; align-items: center; gap: 1.25rem; background: #fff; border: 1px solid var(--rule); border-radius: 8px; padding: 1rem 1.25rem; }
.si-list li:target { border-color: var(--ece-orange); box-shadow: 0 0 0 3px rgba(233,113,50,.2); }
.si-list .n { font: 600 1.7rem var(--serif); color: var(--ece-deep); text-align: center; }
.si-list h2 { font: 600 1.15rem var(--serif); margin: 0 0 .15rem; }
.si-list p { margin: 0; color: var(--ink-2); font: italic 400 1rem var(--serif); }
.si-list a { font-weight: 600; background: var(--ece-navy); color: #fff; text-decoration: none; padding: .6rem 1rem; border-radius: 6px; white-space: nowrap; }
.si-list a:hover { background: var(--ece-deep); }
.si-list .soon { opacity: .6; }
.not-yet { font-size: .88rem; color: var(--ink-2); white-space: nowrap; }
.si-back { margin-top: 2rem; }
.si-back a { display: inline-block; padding-block: .65rem; margin-block: -.65rem; }
@media (max-width: 640px) { .si-list li { grid-template-columns: 2rem 1fr; } .si-list li > a, .si-list li > .not-yet { grid-column: 2; justify-self: start; } }

/* The show-password eye (PEEK_JS in worker/lib.js). */
.login-card .peek { position: relative; display: block; }
.login-card .peek input { width: 100%; padding-right: 3rem; }
.login-card .peek input::-ms-reveal { display: none; }
.login-card .peek-btn { position: absolute; right: .25rem; top: 50%; transform: translateY(-50%); width: 2.6rem; min-height: 0; height: 2.6rem; padding: 0; display: grid; place-items: center; background: none; color: var(--ink-2); border-radius: 6px; }
.login-card .peek-btn:hover { background: #EEF1F8; color: var(--ece-navy); }
.login-card .peek-btn:focus-visible { outline: 3px solid rgba(233,113,50,.5); }
.login-card .peek-btn svg { width: 1.2rem; height: 1.2rem; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }