:root {
  --bg: #f4f6f9; --card: #fff; --ink: #1d2433; --muted: #5b6475; --line: #dde2ea;
  --brand: #004b3c; --brand-dark: #00382d; --red: #d42027;
  --accent: #00694f; --accent-ink: #fff; --good: #17602f; --good-bg: #e3f4e8; --bad: #a01919; --bad-bg: #fde8e8;
  --sel: #e8f4ef;
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 14px/1.45 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
h1 { font-size: 1.45rem; margin: 0 0 .6rem; }
h2 { font-size: 1.1rem; margin: 1rem 0 .5rem; }
.card h2:first-child, .card h1:first-child { margin-top: 0; }
.top { display: flex; flex-wrap: wrap; align-items: center; gap: .5rem 1.5rem; padding: .55rem 1rem; background: var(--brand); color: #fff; border-bottom: 3px solid var(--red); }
.top a { color: #fff; }
.brand { display: flex; align-items: center; gap: .6rem; }
.brand:hover { text-decoration: none; }
.brand img { width: 40px; height: 40px; border-radius: 50%; background: #fff; }
.brand b { display: block; font-weight: 650; font-size: 1rem; letter-spacing: .02em; }
.brand small { display: block; font-size: .72rem; opacity: .75; }
.top nav { display: flex; gap: .3rem; flex-wrap: wrap; flex: 1; }
.top nav a { padding: .35rem .7rem; border-radius: 6px; opacity: .85; }
.top nav a.on, .top nav a:hover { background: rgba(255,255,255,.14); opacity: 1; text-decoration: none; }
.who { display: flex; gap: .6rem; align-items: center; font-size: .85rem; margin: 0; }
button.link { background: none; border: 0; color: #fff; text-decoration: underline; cursor: pointer; font: inherit; padding: 0; }
main { max-width: 1180px; margin: 0 auto; padding: 1rem 16px 3rem; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 10px; padding: 1rem 1.2rem; margin-bottom: 1rem; }
.grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.4fr); gap: 1rem; }
@media (max-width: 800px) { .grid { grid-template-columns: minmax(0, 1fr); } }
.headline { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: .6rem; margin: .4rem 0 1rem; }
.headline h1, .headline h2 { margin: 0; }
.cardhead { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: .5rem; }
.muted, .count { color: var(--muted); font-weight: 400; font-size: .85em; }
.crumbs { margin-bottom: .6rem; }
.hint, .note { color: var(--muted); font-size: .85rem; }
.error { color: var(--bad); background: var(--bad-bg); padding: .5rem .7rem; border-radius: 6px; }
.btn { display: inline-block; border: 1px solid var(--line); background: #fff; color: var(--ink); padding: .45rem .85rem; border-radius: 7px; font: inherit; cursor: pointer; }
.btn:hover { border-color: var(--accent); text-decoration: none; }
.btn.primary { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); }
.btn.primary:hover { background: var(--brand-dark); }
.actions { display: flex; flex-wrap: wrap; gap: .4rem; }
input, select { font: inherit; padding: .45rem .55rem; border: 1px solid #c4cbd6; border-radius: 7px; background: #fff; color: var(--ink); max-width: 100%; }
.search { display: flex; gap: .5rem; flex-wrap: wrap; }
.search input { flex: 1; min-width: 0; font-size: 1.05rem; }
.filters { display: flex; flex-wrap: wrap; gap: .7rem; align-items: flex-end; }
.filters label, .inline label { display: flex; flex-direction: column; gap: .2rem; font-size: .8rem; color: var(--muted); }
.inline { margin: 0; }
.login label { display: flex; flex-direction: column; gap: .25rem; margin-bottom: .8rem; font-size: .85rem; color: var(--muted); }
.login .btn { width: 100%; }
.scroll { overflow-x: auto; }
table { border-collapse: collapse; width: 100%; }
th, td { padding: .38rem .55rem; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
th { font-size: .78rem; text-transform: uppercase; letter-spacing: .03em; color: var(--muted); font-weight: 600; background: #f8f9fb; }
.n { text-align: right; white-space: nowrap; font-variant-numeric: tabular-nums; }
tr.total td { font-weight: 650; border-top: 2px solid var(--ink); background: #f8f9fb; }
tr.subtotal td { color: var(--muted); font-style: italic; }
tr.cancelled td { color: var(--bad); text-decoration: line-through; }
tr.cancelled td:last-child { text-decoration: none; }
tr.sel td { background: var(--sel); }
td.due { color: var(--bad); }
.kv td { border: 0; padding: .2rem 1rem .2rem 0; }
.kv td:nth-child(odd) { color: var(--muted); white-space: nowrap; }
.badge { display: inline-block; padding: .1rem .5rem; border-radius: 99px; font-size: .78rem; font-weight: 600; }
.badge.good { background: var(--good-bg); color: var(--good); }
.badge.bad { background: var(--bad-bg); color: var(--bad); }
/* home */
.hero { position: relative; overflow: hidden; display: flex; align-items: center; gap: 1.5rem; margin: .5rem 0 1rem; padding: 1.6rem 1.6rem;
  border-radius: 14px; color: #fff; background: linear-gradient(120deg, var(--brand-dark), var(--accent)); }
.hero::after { content: ""; position: absolute; right: -60px; bottom: -60px; width: 260px; height: 260px; border-radius: 50%; border: 36px solid rgba(255,255,255,.06); }
.hero-crest { width: 110px; height: 110px; flex: none; border-radius: 50%; background: #fff; padding: 4px; box-shadow: 0 4px 18px rgba(0,0,0,.25); }
.hero-body { flex: 1; min-width: 0; position: relative; z-index: 1; }
.hero h1 { font-size: 1.6rem; margin-bottom: .8rem; }
.hero .eyebrow { margin: 0 0 .2rem; font-size: .85rem; opacity: .85; }
.hero .hint { color: rgba(255,255,255,.8); margin-bottom: 0; }
.hero code { background: rgba(255,255,255,.16); color: #fff; }
.hero .search input { border-color: transparent; padding: .65rem .8rem; }
.hero .btn.primary { background: var(--red); border-color: var(--red); padding: .6rem 1.2rem; }
.hero .btn.primary:hover { background: #b0171d; }
@media (max-width: 640px) { .stats .stat b { font-size: 1.1rem; } .hero { flex-direction: column; align-items: flex-start; padding: 1.2rem; } .hero-crest { width: 72px; height: 72px; } }
.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: .8rem; margin-bottom: 1rem; }
.stat { background: var(--card); border: 1px solid var(--line); border-top: 3px solid var(--accent); border-radius: 10px; padding: .8rem 1rem; }
.stat span { display: block; font-size: .78rem; color: var(--muted); text-transform: uppercase; letter-spacing: .04em; }
.stat b { display: block; font-size: 1.45rem; font-weight: 650; font-variant-numeric: tabular-nums; margin-top: .15rem; }
.tiles { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: .8rem; }
.tile { display: block; background: var(--card); border: 1px solid var(--line); border-radius: 10px; padding: 1rem 1.2rem; color: var(--ink); }
.tile:hover { border-color: var(--accent); text-decoration: none; box-shadow: 0 2px 10px rgba(0,75,60,.08); }
.tile b { display: block; color: var(--accent); margin-bottom: .25rem; }
.tile b::after { content: " →"; }
.tile span { color: var(--muted); font-size: .88rem; }
/* login landing */
body.landing { background: #fff; }
body.landing main { max-width: none; padding: 0; }
.landing-wrap { display: grid; grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr); min-height: 100vh; }
.landing-hero { display: flex; align-items: flex-end; padding: 3rem; color: #fff; border-right: 4px solid var(--red);
  background: linear-gradient(180deg, rgba(0,56,45,.55) 0%, rgba(0,56,45,.92) 70%), url("img/campus.jpg") center / cover no-repeat var(--brand); }
.landing-copy { max-width: 520px; }
.landing-hero .crest { width: 120px; height: 120px; border-radius: 50%; background: #fff; padding: 4px; box-shadow: 0 6px 24px rgba(0,0,0,.3); }
.landing-hero h1 { font-size: 2rem; line-height: 1.15; margin: 1rem 0 .3rem; letter-spacing: .02em; }
.landing-hero .addr { margin: 0 0 1.2rem; font-size: .85rem; letter-spacing: .08em; opacity: .85; }
.landing-hero .lead { font-size: 1.05rem; opacity: .95; }
.points { list-style: none; padding: 0; margin: 1rem 0 0; }
.points li { padding: .25rem 0 .25rem 1.4rem; position: relative; opacity: .92; }
.points li::before { content: ""; position: absolute; left: 0; top: .7rem; width: .55rem; height: .55rem; border-radius: 50%; background: var(--red); }
.landing-form { display: flex; align-items: center; justify-content: center; padding: 2rem 16px; background: var(--bg); }
.login { width: 100%; max-width: 360px; background: var(--card); border: 1px solid var(--line); border-radius: 14px; padding: 1.8rem 1.6rem; box-shadow: 0 8px 30px rgba(0,0,0,.06); }
.login h2 { font-size: 1.35rem; margin: 0 0 .2rem; }
.login .crest-sm { display: none; width: 72px; height: 72px; margin: 0 auto .6rem; }
.login .school-sm { display: none; margin: 0 0 1rem; font-weight: 650; color: var(--brand); letter-spacing: .03em; }
.login .foot { margin: 1rem 0 0; text-align: center; }
@media (max-width: 860px) {
  .landing-wrap { grid-template-columns: minmax(0, 1fr); min-height: 0; }
  .landing-hero { display: none; }
  .landing-form { min-height: 100vh; align-items: flex-start; padding-top: 10vh; }
  .login { text-align: center; }
  .login .crest-sm, .login .school-sm { display: block; }
  .login label { text-align: left; }
}
code { background: #eef1f5; padding: .05rem .3rem; border-radius: 4px; }
/* receipt */
.paper { background: #fff; border: 1px solid var(--line); border-radius: 10px; padding: 1.5rem; max-width: 760px; }
.letterhead { margin-bottom: .4rem; border-bottom: 2px solid var(--brand); }
.letterhead td { border: 0; padding: 0 0 .6rem; vertical-align: middle; }
.letterhead .lh-crest { width: 84px; }
.letterhead img { width: 76px; height: 76px; display: block; }
.letterhead .lh-text { text-align: center; }
.lh-name { font-size: 1.35rem; font-weight: 700; color: var(--brand); letter-spacing: .02em; }
.lh-addr { font-size: .8rem; color: var(--muted); letter-spacing: .08em; margin-top: .1rem; }
@media (max-width: 520px) { .letterhead .lh-crest { width: 52px; } .letterhead img { width: 48px; height: 48px; } .lh-name { font-size: 1.05rem; } }
.receipt .title { text-align: center; font-weight: 700; letter-spacing: .2em; margin: .6rem 0 .2rem; }
.receipt .reprint { text-align: center; font-size: .78rem; color: var(--muted); margin-bottom: .8rem; }
.receipt .stamp { text-align: center; color: var(--bad); border: 3px solid var(--bad); font-size: 1.5rem; font-weight: 800; letter-spacing: .3em; padding: .3rem; margin: .5rem 0 1rem; }
.receipt .kv { margin-bottom: 1rem; }
.receipt .sign td { border: 0; padding-top: 2.2rem; }
@media print {
  body { background: #fff; }
  .no-print, .top { display: none !important; }
  main { padding: 0; max-width: none; }
  .card, .paper { border: 0; padding: 0; }
  tr.cancelled td { text-decoration: none; }
}