:root{
  --bg:#f6f4ef; --surface:#fff; --surface-2:#fbfaf6; --surface-3:#f1eee7;
  --border:rgba(24,34,58,.11); --border-strong:rgba(24,34,58,.2);
  --text:#16223a; --text-dim:#5d6779; --text-faint:#8a93a3;
  --primary:#1e3a5f; --primary-2:#2b5486; --primary-soft:rgba(30,58,95,.08);
  --gold:#b8791f; --gold-soft:rgba(184,121,31,.13);
  --green:#1c7a4e; --green-soft:rgba(28,122,78,.12);
  --red:#b02a33; --red-soft:rgba(176,42,51,.12);
  --amber:#a9720f; --amber-soft:rgba(169,114,15,.14);
  --orange:#b4560f; --orange-soft:rgba(180,86,15,.13);
  --blue:#2b5486; --blue-soft:rgba(43,84,134,.12);
  --grey:#6b7385; --grey-soft:rgba(107,115,133,.13);
  --teal:#0f6d68; --teal-soft:rgba(15,109,104,.12);
  --shadow:0 1px 2px rgba(22,34,58,.04),0 8px 24px -12px rgba(22,34,58,.18);
  --radius:14px; --radius-sm:9px;
  --font:"Plus Jakarta Sans",system-ui,-apple-system,"Segoe UI",sans-serif;
  --mono:"Azeret Mono",ui-monospace,Menlo,monospace;
}
@media (prefers-color-scheme: dark){
  :root{
    --bg:#0f1723; --surface:#17212f; --surface-2:#1b2634; --surface-3:#212d3d;
    --border:rgba(255,255,255,.09); --border-strong:rgba(255,255,255,.17);
    --text:#eef2f8; --text-dim:#a3aec0; --text-faint:#7a869a;
    --primary:#7fa8dd; --primary-2:#9dbde8; --primary-soft:rgba(127,168,221,.14);
    --gold:#e0b25f; --gold-soft:rgba(224,178,95,.15);
    --green:#5fc48f; --green-soft:rgba(95,196,143,.14);
    --red:#ef7b82; --red-soft:rgba(239,123,130,.14);
    --amber:#e0b25f; --amber-soft:rgba(224,178,95,.15);
    --orange:#f0a06a; --orange-soft:rgba(240,160,106,.15);
    --blue:#8fb4e8; --blue-soft:rgba(143,180,232,.15);
    --grey:#9aa6ba; --grey-soft:rgba(154,166,186,.14);
    --teal:#5cc9c0; --teal-soft:rgba(92,201,192,.14);
    --shadow:0 1px 2px rgba(0,0,0,.3),0 10px 30px -14px rgba(0,0,0,.6);
  }
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  font-family:var(--font); color:var(--text); background:var(--bg);
  background-image:radial-gradient(1100px 520px at 82% -12%,var(--primary-soft),transparent 62%),
                   radial-gradient(760px 420px at -8% 4%,var(--gold-soft),transparent 58%);
  background-attachment:fixed; -webkit-font-smoothing:antialiased; line-height:1.5; min-height:100vh;
}
h1,h2,h3,h4{margin:0;line-height:1.22;letter-spacing:-.015em}
button,input,select{font-family:inherit}
.boot{padding:60px;text-align:center;color:var(--text-faint)}
.mono{font-family:var(--mono)}
.wrap{max-width:1180px;margin:0 auto;padding:0 22px}
.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow)}
.mini{font-size:12px;color:var(--text-faint);font-family:var(--mono)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:1px solid transparent;
  border-radius:10px;cursor:pointer;font-size:14px;font-weight:600;padding:10px 16px;
  background:var(--primary);color:#fff;transition:filter .12s,transform .12s}
.btn:hover{filter:brightness(1.08)} .btn:active{transform:translateY(1px)}
.btn.ghost{background:transparent;color:var(--text);border-color:var(--border-strong)}
.btn.ghost:hover{background:var(--surface-3);filter:none}
.btn.small{padding:7px 12px;font-size:13px;border-radius:8px}
.btn.danger{background:transparent;color:var(--red);border-color:var(--border-strong);padding:6px 10px}
.btn.danger:hover{background:var(--red-soft);filter:none}
input,select{width:100%;padding:10px 12px;border-radius:10px;font-size:14px;
  border:1px solid var(--border-strong);background:var(--surface-2);color:var(--text)}
input:focus,select:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px var(--primary-soft)}
.field{display:flex;flex-direction:column;gap:6px}
.field label{font-size:12.5px;font-weight:600;color:var(--text-dim)}
.grid{display:grid;gap:14px}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.form-grid .full{grid-column:1/-1}
@media (max-width:560px){.form-grid{grid-template-columns:1fr}}
.pill{display:inline-flex;align-items:center;gap:6px;padding:3px 9px;border-radius:999px;
  font-size:12px;font-weight:600;font-family:var(--mono);white-space:nowrap}
.pill .dot{width:6px;height:6px;border-radius:50%;background:currentColor}
.p-paid{background:var(--green-soft);color:var(--green)}
.p-due{background:var(--amber-soft);color:var(--amber)}
.p-partial{background:var(--primary-soft);color:var(--primary)}
.p-over{background:var(--red-soft);color:var(--red)}
.p-neutral{background:var(--surface-3);color:var(--text-dim)}
table{width:100%;border-collapse:collapse}
th,td{text-align:left;padding:11px 12px;font-size:14px;border-bottom:1px solid var(--border);vertical-align:middle}
th{font-family:var(--mono);font-size:11px;letter-spacing:.1em;text-transform:uppercase;
  color:var(--text-faint);font-weight:500;background:var(--surface-2)}
tbody tr:hover{background:var(--surface-2)}
td.num,th.num{text-align:right;font-variant-numeric:tabular-nums}
.tablewrap{overflow-x:auto;border:1px solid var(--border);border-radius:var(--radius);background:var(--surface)}
.empty{padding:34px 20px;text-align:center;color:var(--text-faint);font-size:14px}

/* login */
.login-shell{min-height:100vh;display:grid;grid-template-columns:1.05fr .95fr}
@media (max-width:880px){.login-shell{grid-template-columns:1fr}}
.login-brand{padding:56px 54px;display:flex;flex-direction:column;justify-content:space-between;
  background:linear-gradient(160deg,#16304f,#1e3a5f 45%,#2b5486);color:#eaf1fa;position:relative;overflow:hidden}
.login-brand::after{content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);
  background-size:34px 34px;mask-image:radial-gradient(70% 70% at 30% 20%,#000,transparent 78%)}
@media (max-width:880px){.login-brand{padding:40px 28px}}
.brand-top{position:relative;z-index:1;display:flex;align-items:center;gap:12px}
.crest{width:44px;height:44px;border-radius:12px;display:grid;place-items:center;
  background:linear-gradient(140deg,var(--gold),#e0b25f);color:#1a1206;font-weight:800;font-size:19px;font-family:var(--mono)}
.brand-name{font-weight:800;font-size:17px}
.brand-sub{font-size:12px;color:#9fb6d2;font-family:var(--mono)}
.brand-copy{position:relative;z-index:1;max-width:460px}
.brand-copy h1{font-size:clamp(28px,4vw,40px);font-weight:800;color:#fff;margin-bottom:16px}
.brand-copy p{color:#c2d2e6;font-size:15.5px;margin:0}
.brand-feats{position:relative;z-index:1;display:flex;flex-direction:column;gap:12px;margin-top:30px}
.feat{display:flex;gap:12px;align-items:flex-start;font-size:14.5px;color:#d7e3f1}
.feat .ic{width:22px;height:22px;flex:0 0 22px;border-radius:7px;background:rgba(255,255,255,.13);
  display:grid;place-items:center;font-family:var(--mono);font-size:12px;color:#e0b25f;font-weight:600}
.login-panel{display:flex;align-items:center;justify-content:center;padding:44px 28px}
.login-card{width:100%;max-width:404px;padding:30px}
.login-card h2{font-size:25px;font-weight:800}
.login-card .sub{color:var(--text-dim);font-size:14.5px;margin:8px 0 24px}
.err{color:var(--red);font-size:13px;font-weight:500;margin-top:12px;min-height:18px}

/* shell */
.topbar{position:sticky;top:0;z-index:30;background:color-mix(in srgb,var(--surface) 86%,transparent);
  backdrop-filter:blur(12px);border-bottom:1px solid var(--border)}
.topbar .wrap{display:flex;align-items:center;gap:14px;height:64px}
.topbar .crest{width:34px;height:34px;font-size:15px;border-radius:9px}
.topbar .brand-name{color:var(--text);font-size:15px}
.topbar .brand-sub{color:var(--text-faint);font-size:11px}
.spacer{flex:1}
.who{text-align:right;line-height:1.25}
.who .n{font-size:14px;font-weight:700}
.who .r{font-size:11.5px;color:var(--text-faint);font-family:var(--mono)}
.avatar{width:36px;height:36px;border-radius:10px;display:grid;place-items:center;font-weight:700;
  font-size:14px;background:var(--primary-soft);color:var(--primary)}
/* ---------- phone layout for the header ---------- */
@media (max-width:700px){
  .topbar .wrap{height:56px;gap:8px}
  /* the greeting and avatar are the least useful things here; drop them so the
     brand and the Log out button both fit */
  .topbar .who,.topbar .avatar{display:none}
  /* the spacer was competing with the brand for the leftover width */
  .topbar .spacer{display:none}
  .topbar .brand-top{gap:8px;min-width:0;flex:1 1 auto}
  .topbar .brand-top > div:last-child{min-width:0}
  .topbar .brand-name{font-size:12px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
                      letter-spacing:-.2px}
  .topbar .brand-sub{display:none}
  .topbar .crest{width:30px;height:30px;font-size:13px;flex:none}
  .topbar .crest.has-logo{width:30px;height:30px;padding:3px;border-radius:8px}
  .topbar .btn.small{padding:7px 10px;font-size:12px;white-space:nowrap;flex:none}
}
@media (max-width:380px){
  .topbar .brand-name{font-size:11px}
  .topbar .btn.small{padding:6px 8px;font-size:11px}
}
main{padding:26px 0 70px}
.page-head{margin-bottom:22px}
.page-head h2{font-size:23px;font-weight:800}
.page-head p{margin:6px 0 0;color:var(--text-dim);font-size:14px}
.seg{display:flex;gap:6px;flex-wrap:wrap;margin-bottom:20px;align-items:center}
.seg button{border:1px solid var(--border-strong);background:var(--surface);color:var(--text-dim);
  padding:9px 16px;border-radius:999px;cursor:pointer;font-size:13.5px;font-weight:600}
.seg button:hover{color:var(--text)}
.seg button.on{background:var(--primary);border-color:var(--primary);color:#fff}
.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));gap:14px;margin-bottom:22px}
.stat{padding:18px;border-radius:var(--radius);background:var(--surface);
  border:1px solid var(--border);box-shadow:var(--shadow);position:relative;overflow:hidden}
.stat::before{content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--primary)}
.stat.gold::before{background:var(--gold)} .stat.green::before{background:var(--green)}
.stat.red::before{background:var(--red)}
.stat .k{font-family:var(--mono);font-size:10.5px;letter-spacing:.12em;text-transform:uppercase;color:var(--text-faint)}
.stat .v{font-size:27px;font-weight:800;letter-spacing:-.02em;margin-top:8px;font-variant-numeric:tabular-nums}
.stat .s{font-size:12.5px;color:var(--text-dim);margin-top:3px}
.panel{padding:20px}
.panel h3{font-size:16px;font-weight:700;margin-bottom:14px;display:flex;align-items:center;justify-content:space-between;gap:10px}
.two{display:grid;grid-template-columns:1.25fr .75fr;gap:18px;align-items:start}
.two.wide{grid-template-columns:1.7fr 1fr}
@media (max-width:900px){.two,.two.wide{grid-template-columns:1fr}}
.bar{height:8px;border-radius:999px;background:var(--surface-3);overflow:hidden;margin-top:10px}
.bar>i{display:block;height:100%;background:var(--green);border-radius:999px}
.bar.warn>i{background:var(--amber)} .bar.bad>i{background:var(--red)}

/* week calendar */
.week{display:grid;grid-template-columns:repeat(7,minmax(0,1fr));gap:10px}
@media (max-width:1000px){.week{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:560px){.week{grid-template-columns:1fr}}
.wcol{min-width:0}
.whead{font-family:var(--mono);font-size:11px;letter-spacing:.1em;text-transform:uppercase;
  color:var(--text-faint);padding:0 2px 8px;display:flex;gap:6px;align-items:center}
.whead.today{color:var(--primary)}
.slot{border:1px solid var(--border);border-radius:var(--radius-sm);padding:11px 14px 11px 12px;
  background:var(--surface);margin-bottom:9px;transition:transform .13s,box-shadow .13s}
.slot:hover{transform:translateY(-2px);box-shadow:var(--shadow)}
.slot .subj{font-weight:700;font-size:14px}
.slot .t{font-family:var(--mono);font-size:12px;color:var(--primary);font-weight:600;margin-top:4px}
.slot .l{font-family:var(--mono);font-size:11px;color:var(--text-dim);margin-top:2px;
  overflow-wrap:break-word}
.slot .g{font-size:11.5px;color:var(--text-faint);margin-top:5px}
.slot .join{display:inline-block;margin-top:8px;font-size:12px;font-weight:700;color:var(--green);
  text-decoration:none;border-bottom:1px solid currentColor}
.wempty{font-size:12px;color:var(--text-faint);padding:8px 2px}

/* month calendar */
.month{display:grid;grid-template-columns:repeat(7,1fr);gap:6px}
.mhead{font-family:var(--mono);font-size:10.5px;letter-spacing:.08em;text-transform:uppercase;
  color:var(--text-faint);text-align:center;padding-bottom:4px}
.mday{aspect-ratio:1/1;border:1px solid var(--border);border-radius:8px;padding:6px;
  font-size:12px;display:flex;flex-direction:column;gap:3px;background:var(--surface)}
.mday.out{opacity:.35}
.mday .n{font-family:var(--mono);font-size:11px;color:var(--text-dim)}
.mday.ok{background:var(--green-soft);border-color:transparent}
.mday.no{background:var(--red-soft);border-color:transparent}
.mday.half{background:var(--amber-soft);border-color:transparent}
.mday.noshow{background:var(--orange-soft);border-color:transparent}
.mday.holiday{background:var(--grey-soft);border-color:transparent}
.mday.moved{background:var(--blue-soft);border-color:transparent}
.mday.demo{background:var(--teal-soft);border-color:transparent}
.mday.cancelled{background:var(--grey-soft);border-color:transparent}
.mday.ok .st{color:var(--green)}
.mday.half .st{color:var(--amber)}
.mday.no .st{color:var(--red)}
.mday.noshow .st{color:var(--orange)}
.mday.holiday .st,.mday.cancelled .st{color:var(--grey)}
.mday.moved .st{color:var(--blue)}
.mday.demo .st{color:var(--teal)}
.mday .st{font-size:10px;font-weight:700;font-family:var(--mono);margin-top:auto}
.legend{display:flex;gap:14px;flex-wrap:wrap;margin-top:14px;font-size:12.5px;color:var(--text-dim)}
.legend i{width:10px;height:10px;border-radius:3px;display:inline-block;margin-right:5px}
.toast{position:fixed;left:50%;bottom:26px;transform:translateX(-50%) translateY(20px);
  background:var(--primary);color:#fff;padding:11px 18px;border-radius:11px;font-size:14px;
  font-weight:600;box-shadow:var(--shadow);opacity:0;pointer-events:none;transition:all .25s;z-index:99}
.toast.on{opacity:1;transform:translateX(-50%) translateY(0)}
.footnote{margin-top:22px;font-size:12.5px;color:var(--text-faint);text-align:center}
.fade-in{animation:fade .3s ease}
@keyframes fade{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}
@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}

.statusline{font-size:14.5px;color:var(--text-dim);margin:-2px 0 16px;line-height:1.55}

/* keep a period's start-end on one line */
.slot .t,.slot .l{white-space:nowrap}
/* breathing room between a date/name and the small mono detail after it */
td .mini, .rc-row .mini{margin-left:6px}
td .mini[style*="display:block"]{margin-left:0}

.ver{position:fixed;right:10px;bottom:8px;font-family:var(--mono);font-size:10px;
     color:var(--text-faint);opacity:.75;pointer-events:none;z-index:50}

/* modal */
.modal{position:fixed;inset:0;background:rgba(12,18,30,.5);display:flex;
       align-items:center;justify-content:center;overflow-y:auto;
       z-index:120;padding:20px;backdrop-filter:blur(2px)}
/* the card scrolls inside the screen, so the buttons are always reachable
   even on a short laptop screen or a phone in landscape */
.modal .card{width:100%;max-width:400px;padding:24px;box-shadow:var(--shadow-lg);
             max-height:calc(100vh - 40px);overflow-y:auto;overscroll-behavior:contain;
             margin:auto}
.modal h3{font-size:17px;font-weight:800;margin-bottom:6px}
.modal .hint{font-size:13px;color:var(--text-dim);margin-bottom:16px}
.modal .row{display:flex;gap:8px;margin-top:16px;position:sticky;bottom:-24px;
            background:var(--surface);padding:12px 0 24px}
@media (max-height:640px){
  .modal .card{max-height:calc(100vh - 24px);padding:18px}
  .modal .grid{gap:10px}
}

/* institute logo inside the crest: white tile so the blue mark reads on both
   the dark login panel and the light header */
.crest.has-logo{background:#fff;padding:5px;box-shadow:0 1px 3px rgba(0,0,0,.18);
                border:1px solid rgba(0,0,0,.06);border-radius:11px}
.crest.has-logo img{width:100%;height:100%;object-fit:contain;display:block;border-radius:6px}
.topbar .crest.has-logo{width:36px;height:36px;padding:4px;border-radius:9px}