:root{
  --paper:#f6f1e7; --card:#fffdf8; --ink:#1b2a41; --ink-2:#4b5a70; --line:#dcd3c0;
  --blue:#1f3f6e; --blue-2:#2c5794; --ok:#2f7a4d; --ok-bg:#e3f2e8; --warn:#a4451f; --warn-bg:#f9e6dd; --info-bg:#e4ecf7;
  --serif:Georgia,"Iowan Old Style","Palatino Linotype",Palatino,serif;
  --sans:system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
}
@media (prefers-color-scheme:dark){
  :root{--paper:#141a24; --card:#1b2330; --ink:#e9edf4; --ink-2:#a6b2c4; --line:#2f3b4e; --blue:#7ea6e6; --blue-2:#9dbcf0;
    --ok:#6fcf97; --ok-bg:#183024; --warn:#f0a07a; --warn-bg:#3a2119; --info-bg:#1c2b44;}
}
*{box-sizing:border-box}
html{font-size:16px}
body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--sans);line-height:1.5}
.wrap{max-width:1080px;margin:0 auto;padding:0 20px}
a{color:var(--blue-2)}
h1,h2,h3{font-family:var(--serif);font-weight:700;line-height:1.2;letter-spacing:-.01em}
h1{font-size:2rem;margin:.6em 0 .4em} h2{font-size:1.35rem} h3{font-size:1.05rem}
.muted{color:var(--ink-2)} .small{font-size:.85rem} .right{text-align:right;margin-top:14px} .err{color:var(--warn)}
code{background:var(--info-bg);padding:1px 5px;border-radius:4px;font-size:.9em}

/* header — a bluebook cover strip */
.top{background:var(--blue);color:#fff;border-bottom:4px double rgba(255,255,255,.35)}
.admin .top{background:#22303f}
.bar{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:58px;flex-wrap:wrap}
.brand{font-family:var(--serif);font-size:1.15rem;color:#fff;text-decoration:none;display:flex;align-items:center;gap:10px;font-weight:700}
.mark{width:18px;height:22px;border:2px solid #fff;border-radius:2px;position:relative;display:inline-block}
.mark:after{content:"";position:absolute;left:3px;right:3px;top:5px;height:2px;background:#fff;box-shadow:0 5px 0 #fff,0 10px 0 #fff}
.top nav{display:flex;gap:16px;align-items:center;flex-wrap:wrap}
.top nav a,.top nav .link{color:#e8eefb;text-decoration:none;font-size:.92rem;background:none;border:0;cursor:pointer;padding:0;font-family:inherit}
.top nav a:hover,.top nav .link:hover{text-decoration:underline}
main{padding-bottom:48px;min-height:70vh}
.foot{padding:18px 20px;color:var(--ink-2);font-size:.85rem;border-top:1px solid var(--line)}
.crumb{margin:18px 0 0;font-size:.9rem}
.hero{padding:30px 0 6px}
.lede{font-size:1.1rem;color:var(--ink-2);max-width:62ch}

/* cards / panels */
.cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:16px;margin-top:18px}
.card,.panel{background:var(--card);border:1px solid var(--line);border-radius:10px;padding:18px 20px}
.panel{margin:16px 0}
.exam-card{display:block;color:inherit;text-decoration:none;transition:transform .12s,box-shadow .12s;border-left:6px solid var(--blue)}
.exam-card:hover{transform:translateY(-2px);box-shadow:0 6px 18px rgba(0,0,0,.12)}
.exam-card h2{margin:0 0 6px}
.meta{font-size:.9rem;color:var(--ink-2);margin:10px 0 0}
.pill{display:inline-block;padding:2px 10px;border-radius:99px;background:var(--info-bg);font-size:.8rem;font-weight:600}
.pill.ok{background:var(--ok-bg);color:var(--ok)} .pill.full{background:var(--warn-bg);color:var(--warn)}

/* forms */
label{display:block;font-weight:600;font-size:.92rem}
label small{font-weight:400;color:var(--ink-2)}
input[type=text],input[type=email],input[type=password],input[type=number],input[type=date],input[type=time],input[type=datetime-local],input[type=search],select,textarea{
  display:block;width:100%;margin-top:5px;padding:9px 11px;font:inherit;color:var(--ink);background:var(--paper);border:1px solid var(--line);border-radius:7px}
input:focus,select:focus,textarea:focus{outline:3px solid color-mix(in srgb,var(--blue-2) 35%,transparent);border-color:var(--blue-2)}
fieldset{border:1px solid var(--line);border-radius:10px;margin:16px 0;padding:14px 20px 20px;background:var(--card)}
fieldset[disabled]{opacity:.6}
legend{font-family:var(--serif);font-weight:700;padding:0 8px;font-size:1.1rem}
.stack>*+*{margin-top:14px}
.grid2{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:14px}
.grid3{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:14px}
.grid4{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:14px}
.checks{display:flex;flex-wrap:wrap;gap:6px 18px;align-items:center}
label.check{display:inline-flex;gap:6px;align-items:center;font-weight:500}
label.check input{margin:0}
.hp{position:absolute;left:-9999px;height:0;overflow:hidden}
.narrow{max-width:420px;margin:0 auto}
.row-between{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap}
.row-form{display:flex;gap:12px;align-items:flex-end;flex-wrap:wrap}.row-form label{flex:1;min-width:240px}
.filters{display:flex;gap:14px;align-items:flex-end;flex-wrap:wrap;margin:14px 0}.filters label{min-width:180px}
.inline-form,form.inline{display:inline-flex;gap:6px;align-items:center;margin:0}
.inline-form input{margin:0}.num{width:88px!important}
details.panel summary{cursor:pointer}details.panel[open] summary{margin-bottom:12px}

/* buttons */
.btn{display:inline-block;padding:9px 16px;border-radius:7px;border:1px solid var(--line);background:var(--card);color:var(--ink);font:inherit;font-weight:600;cursor:pointer;text-decoration:none}
.btn:hover{border-color:var(--blue-2)}
.btn.primary{background:var(--blue);border-color:var(--blue);color:#fff}.btn.primary:hover{background:var(--blue-2)}
.btn.danger{color:var(--warn);border-color:var(--warn)}.btn.danger:hover{background:var(--warn-bg)}
.btn.small{padding:4px 10px;font-size:.85rem}.btn.big{padding:13px 26px;font-size:1.05rem}
.danger-zone{border-color:var(--warn);display:flex;gap:14px;align-items:center;flex-wrap:wrap}

/* alerts */
.alert{padding:12px 16px;border-radius:8px;margin:16px 0;border:1px solid;font-weight:500}
.alert.ok{background:var(--ok-bg);border-color:var(--ok);color:var(--ok)}
.alert.error{background:var(--warn-bg);border-color:var(--warn);color:var(--warn)}
.alert.info{background:var(--info-bg);border-color:var(--blue-2)}

/* slot picker — each option is a ticket stub */
.day{margin:22px 0 10px;padding-bottom:6px;border-bottom:1px dashed var(--line)}
.slots{display:grid;grid-template-columns:repeat(auto-fill,minmax(190px,1fr));gap:10px}
.slot{display:block;position:relative;cursor:pointer;font-weight:400}
.slot input{position:absolute;opacity:0;inset:0;margin:0;cursor:pointer}
.slot-body{display:grid;gap:3px;padding:12px 14px;background:var(--paper);border:1px solid var(--line);border-left:5px solid var(--blue-2);border-radius:8px;height:100%}
.slot:hover .slot-body{border-color:var(--blue-2)}
.slot input:checked+.slot-body{background:var(--blue);color:#fff;border-color:var(--blue)}
.slot input:checked+.slot-body .bar-track{background:rgba(255,255,255,.3)}
.slot input:focus-visible+.slot-body{outline:3px solid var(--blue-2);outline-offset:2px}
.slot-time{font-weight:700}.slot-room{font-size:.95rem}.slot-left{font-size:.8rem;opacity:.85}
.slot.is-full{cursor:not-allowed}.slot.is-full .slot-body{opacity:.5;border-left-color:var(--warn);text-decoration:line-through}
.slot.is-full .slot-left{text-decoration:none;font-weight:700;color:var(--warn)}
.bar-track{display:inline-block;width:100%;max-width:120px;height:6px;background:var(--line);border-radius:3px;overflow:hidden;vertical-align:middle}
.bar-fill{display:block;height:100%;background:var(--ok)}.bar-fill.full{background:var(--warn)}
.booking .btn.big{margin-top:6px}

/* confirmation ticket */
.ticket{background:var(--card);border:1px solid var(--line);border-left:10px solid var(--ok);border-radius:10px;padding:8px 26px 22px;margin:18px 0;max-width:620px;box-shadow:0 4px 14px rgba(0,0,0,.08)}
.ticket.is-cancelled{border-left-color:var(--warn);opacity:.85}
.ticket-kicker{font-size:.85rem;letter-spacing:.04em;color:var(--ink-2);margin:14px 0 0}
.ticket dl{display:grid;grid-template-columns:110px 1fr;gap:6px 14px;margin:14px 0}
.ticket dt{color:var(--ink-2)}.ticket dd{margin:0;font-weight:600}
.note{background:var(--info-bg);padding:10px 14px;border-radius:8px}

/* tables */
.table-wrap{overflow-x:auto;background:var(--card);border:1px solid var(--line);border-radius:10px;margin:14px 0}
table{width:100%;border-collapse:collapse;font-size:.93rem}
th,td{padding:10px 14px;text-align:left;border-bottom:1px solid var(--line);vertical-align:middle}
th{font-size:.8rem;background:color-mix(in srgb,var(--line) 35%,transparent)}
tr:last-child td{border-bottom:0}
tr.is-cancelled td{opacity:.55;text-decoration:line-through}
td.actions{white-space:nowrap}

@media (max-width:600px){h1{font-size:1.6rem}.ticket dl{grid-template-columns:1fr}}