/* Chemistry Showcase: UL Lafayette vermilion on warm white; phone first. */
:root {
  --red: #ce181e;
  --red-dark: #9e1015;
  --ink: #1d1a1a;
  --muted: #6b6461;
  --line: #e4dedb;
  --paper: #fbf9f7;
  --card: #fff;
  --ok: #1f6f43;
  --warn-bg: #fff4e5;
  --warn-line: #e8a33d;
  --radius: 10px;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  color: var(--ink);
  background: var(--paper);
  line-height: 1.5;
}
* { box-sizing: border-box; }
body { margin: 0; min-height: 100vh; display: flex; flex-direction: column; }
main { flex: 1; width: 100%; max-width: 860px; margin: 0 auto; padding: 1rem; }
a { color: var(--red-dark); }
h1 { font-size: 1.5rem; margin: 0 0 .5rem; line-height: 1.25; }
h2 { font-size: 1.1rem; margin: 1.25rem 0 .5rem; }

.top { background: #fff; border-bottom: 4px solid var(--red); padding: .6rem 1rem; display: flex; flex-wrap: wrap; align-items: center; gap: .5rem 1.5rem; }
.brand { display: flex; align-items: center; gap: .75rem; text-decoration: none; color: var(--ink); }
.brand img { height: 44px; width: auto; }
.brand-text { display: flex; flex-direction: column; border-left: 1px solid var(--line); padding-left: .75rem; line-height: 1.15; }
.brand-text .dept { font-size: .8rem; color: var(--muted); letter-spacing: .02em; }
.brand-text .app { font-weight: 700; font-size: 1.05rem; }
.nav { display: flex; flex-wrap: wrap; align-items: center; gap: .25rem .9rem; margin-left: auto; }
.nav a { text-decoration: none; color: var(--ink); padding: .35rem 0; border-bottom: 2px solid transparent; }
.nav a[aria-current="page"], .nav a:hover { border-bottom-color: var(--red); }
.inline { display: inline; margin: 0; }

.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 1.25rem; margin: 0 0 1rem; }
.narrow { max-width: 460px; margin: 2rem auto; }
.muted { color: var(--muted); }
.small { font-size: .875rem; }
.lead { font-size: 1.05rem; }
.pre { white-space: pre-wrap; }

.reminder { background: var(--warn-bg); border: 1px solid var(--warn-line); border-left: 6px solid var(--warn-line); border-radius: var(--radius); padding: .9rem 1rem; margin: 0 0 1rem; }
.flagbox { background: var(--warn-bg); border-color: var(--warn-line); border-left: 6px solid var(--warn-line); }
.flagbox h2 { margin-top: 0; }
.error { color: var(--red-dark); background: #fdecec; border-radius: 6px; padding: .5rem .75rem; }
.ok { color: var(--ok); background: #e9f6ef; border-radius: 6px; padding: .5rem .75rem; }

.stack { display: flex; flex-direction: column; gap: .4rem; }
.stack label { font-weight: 600; margin-top: .6rem; }
.stack label .muted { font-weight: 400; }
input, select, textarea, button { font: inherit; }
input[type=email], input:not([type]), input[type=text], select, textarea {
  width: 100%; padding: .6rem .7rem; border: 1px solid #cfc7c3; border-radius: 8px; background: #fff;
}
input:focus, select:focus, textarea:focus, button:focus-visible { outline: 3px solid rgb(206 24 30 / .25); border-color: var(--red); }
button { padding: .6rem 1.1rem; border-radius: 8px; border: 1px solid #cfc7c3; background: #fff; cursor: pointer; }
button.primary { background: var(--red); border-color: var(--red); color: #fff; font-weight: 600; }
button.primary:hover { background: var(--red-dark); }
button.danger { color: var(--red-dark); border-color: var(--red-dark); }
button.link { border: 0; background: none; padding: 0; color: var(--red-dark); text-decoration: underline; }
.row { display: flex; flex-wrap: wrap; gap: .6rem; }
.row form { margin: 0; }

.confirm { display: flex !important; gap: .6rem; align-items: flex-start; font-weight: 400 !important; background: var(--paper); border: 1px solid var(--line); border-radius: 8px; padding: .7rem; margin-top: 1rem !important; }
.confirm input { width: 1.25rem; height: 1.25rem; margin-top: .15rem; flex: none; accent-color: var(--red); }

.drop { border: 2px dashed #cfc7c3; border-radius: var(--radius); padding: 1rem; text-align: center; background: var(--paper); }
.drop.over { border-color: var(--red); background: #fff1f1; }
.drop input[type=file] { max-width: 100%; }
.drop-hint { margin: .5rem 0 0; color: var(--muted); font-size: .9rem; }
.drop-list { list-style: none; padding: 0; margin: .5rem 0 0; text-align: left; font-size: .9rem; }

.subs, .recs, .files, .msgs { list-style: none; padding: 0; margin: 0; }
.sub, .rec { padding: .75rem 0; border-top: 1px solid var(--line); }
.sub:first-child, .rec:first-child { border-top: 0; }
.sub-title, .rec-title { font-weight: 600; margin-right: .4rem; }
.rec { display: flex; gap: .75rem; align-items: flex-start; }
.thumb { width: 56px; height: 56px; object-fit: cover; border-radius: 6px; vertical-align: middle; margin-right: .5rem; }
.files li { padding: .3rem 0; }
.msg { border-left: 3px solid var(--line); padding: .2rem .8rem; margin: .5rem 0; }
.msg p { margin: .2rem 0; white-space: pre-wrap; }
.m-agent, .m-manager { border-left-color: var(--red); }

.badge { display: inline-block; font-size: .78rem; padding: .1rem .5rem; border-radius: 999px; background: #eee9e6; color: var(--ink); white-space: nowrap; }
.s-received { background: #ececf6; }
.s-processing { background: #e7f0fb; }
.s-needs-input, .flag { background: var(--warn-bg); color: #8a5300; border: 1px solid var(--warn-line); }
.s-accepted { background: #e2f3e9; color: var(--ok); }
.s-not-used, .s-withdrawn { background: #f1eeec; color: var(--muted); }

.filters { display: flex; flex-wrap: wrap; gap: .5rem; margin: .5rem 0 1rem; }
.filters input, .filters select { width: auto; flex: 1 1 140px; }
.gallery { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: .75rem; margin: 1rem 0; }
.gallery img { width: 100%; border-radius: 8px; }
figure { margin: 0; }
figcaption { font-size: .85rem; color: var(--muted); }
.withdraw { margin-top: 1rem; }

.foot { text-align: center; color: var(--muted); font-size: .8rem; padding: 1.5rem 1rem; }

@media (max-width: 560px) {
  .brand img { height: 36px; }
  .nav { margin-left: 0; width: 100%; }
  main { padding: .6rem; }
  .card { padding: 1rem; }
}

/* students */
a.button { display: inline-block; padding: .55rem 1rem; border-radius: 8px; text-decoration: none; }
a.button.primary { background: var(--red); color: #fff; font-weight: 600; }
.spread { justify-content: space-between; align-items: center; }
.grow { flex: 1 1 140px; }
.student { font-weight: 600; color: var(--red-dark); background: #fff1f1; border-radius: 4px; padding: 0 .2rem; text-decoration: none; }
.lvl-undergrad { background: #fde7c8; color: #7a4300; }
.lvl-grad { background: #dfe8fb; color: #1d3f86; }
.lvl-postdoc { background: #e6f2ea; color: var(--ok); }
.thumb.ph { display: inline-block; background: #eee9e6; }
.person { display: flex; gap: 1rem; align-items: flex-start; flex-wrap: wrap; }
.portrait { width: 140px; height: 170px; object-fit: cover; border-radius: 8px; }
.inline-check { font-weight: 400 !important; }

/* feedback */
.fb-link { color: var(--red-dark); font-weight: 600; }
.reply { background: var(--paper); border-radius: 6px; padding: .4rem .6rem; }
.fb-done { background: #e2f3e9; color: var(--ok); }
.fb-planned { background: #e7f0fb; }
.fb-declined { background: #f1eeec; color: var(--muted); }
a.button:not(.primary) { border: 1px solid #cfc7c3; color: var(--ink); background: #fff; }
fieldset.plain { border: 1px solid var(--line); border-radius: 8px; padding: .6rem .8rem; margin: .8rem 0 0; }
fieldset.plain legend { font-weight: 600; padding: 0 .3rem; }
.img-edit { display: flex; gap: .6rem; align-items: center; margin: .4rem 0; }

/* showcase */
.preview { width: 100%; height: 520px; border: 1px solid var(--line); border-radius: 8px; background: #fff; }
.embed summary { cursor: pointer; font-weight: 600; margin-top: .6rem; }
.copyrow { display: flex; gap: .5rem; align-items: flex-start; }
.copyrow textarea { font-family: ui-monospace, Menlo, Consolas, monospace; font-size: .8rem; }
.posters { display: grid; grid-template-columns: repeat(auto-fill, minmax(180px, 1fr)); gap: 1rem; }
.poster img { width: 100%; border: 1px solid var(--line); border-radius: 4px; box-shadow: 0 2px 8px rgb(0 0 0 / .08); }
.poster figcaption { font-size: .85rem; margin-top: .4rem; }
.guide h2 { color: var(--red-dark); }
.guide ul { padding-left: 1.2rem; }