:root{
  --ground:#EFF2F2; --surface:#fff; --gutter:#E4E9E9; --line:#D6DDDD; --line-soft:#E8ECEC;
  --ink:#17201F; --ink-2:#55625F; --ink-3:#7E8B88; --today:#FDF6E3;
  --shadow:0 1px 2px rgba(23,32,31,.07); --now:#C2454A; --ok:#2E8B72; --hr:54px;
}
@media (prefers-color-scheme: dark){ :root:not([data-theme="light"]){
  --ground:#0F1514; --surface:#171F1E; --gutter:#131A19; --line:#293433; --line-soft:#1F2827;
  --ink:#E3E9E7; --ink-2:#A2AFAC; --ink-3:#77837F; --today:#241F14;
  --shadow:0 1px 2px rgba(0,0,0,.45); --now:#E4756F; --ok:#63C08C;
}}
:root[data-theme="dark"]{
  --ground:#0F1514; --surface:#171F1E; --gutter:#131A19; --line:#293433; --line-soft:#1F2827;
  --ink:#E3E9E7; --ink-2:#A2AFAC; --ink-3:#77837F; --today:#241F14;
  --shadow:0 1px 2px rgba(0,0,0,.45); --now:#E4756F; --ok:#63C08C;
}
*{box-sizing:border-box}
body{margin:0;background:var(--ground);color:var(--ink);
  font-family:"IBM Plex Sans","Helvetica Neue",Arial,sans-serif;font-size:15px;line-height:1.5;
  -webkit-font-smoothing:antialiased}
.wrap{max-width:82rem;margin:0 auto;padding:1.75rem 1.25rem 4rem}
header.top{display:flex;flex-wrap:wrap;align-items:flex-end;gap:.75rem 1.5rem;
  border-bottom:2px solid var(--ink);padding-bottom:.9rem;margin-bottom:1.25rem}
h1{font-family:Archivo,"Helvetica Neue",sans-serif;font-weight:700;letter-spacing:-.02em;
  font-size:1.75rem;margin:0;line-height:1}
.meta{font-family:"IBM Plex Mono",ui-monospace,monospace;font-size:.72rem;color:var(--ink-3);
  margin-left:auto;text-align:right}
.bar{display:flex;flex-wrap:wrap;align-items:center;gap:.6rem;margin-bottom:1rem}
button{font:inherit;font-size:.82rem;background:var(--surface);color:var(--ink);
  border:1px solid var(--line);border-radius:3px;padding:.35rem .7rem;cursor:pointer}
button:hover{border-color:var(--ink-3)}
button:focus-visible{outline:2px solid var(--ink);outline-offset:2px}
.weeklabel{font-family:Archivo,sans-serif;font-weight:600;font-size:1rem;min-width:14rem}
.chips{display:flex;flex-wrap:wrap;gap:.4rem;margin-left:auto}
.chip{display:inline-flex;align-items:center;gap:.4rem;font-size:.75rem;font-weight:500;
  border:1px solid var(--line);background:var(--surface);border-radius:99px;
  padding:.22rem .65rem;cursor:pointer;user-select:none}
.chip .dot{width:.6rem;height:.6rem;border-radius:2px;flex:none}
.chip[aria-pressed="false"]{opacity:.38}
.scroll{overflow-x:auto;border:1px solid var(--line);border-radius:4px;background:var(--surface);
  box-shadow:var(--shadow)}
.grid{display:grid;grid-template-columns:4.25rem repeat(5,minmax(9rem,1fr));min-width:56rem}
.head{position:sticky;top:0;z-index:3;background:var(--surface);
  border-bottom:1px solid var(--line);padding:.55rem .6rem}
.head .dow{font-family:"IBM Plex Mono",monospace;font-size:.68rem;letter-spacing:.11em;
  text-transform:uppercase;color:var(--ink-3)}
.head .dnum{font-family:Archivo,sans-serif;font-weight:600;font-size:1.05rem}
.head.is-today{background:var(--today)} .head.is-today .dnum{color:var(--now)}
.corner{position:sticky;top:0;z-index:4;background:var(--surface);
  border-bottom:1px solid var(--line);border-right:1px solid var(--line)}
.times{background:var(--gutter);border-right:1px solid var(--line)}
.times .t{height:var(--hr);font-family:"IBM Plex Mono",monospace;font-size:.68rem;
  color:var(--ink-3);padding:.15rem .5rem 0 0;text-align:right;border-bottom:1px solid var(--line-soft)}
.day{position:relative;border-right:1px solid var(--line-soft)}
.day:last-child{border-right:none} .day.is-today{background:var(--today)}
.day .slot{height:var(--hr);border-bottom:1px solid var(--line-soft)}
.ev{position:absolute;border-radius:3px;padding:.28rem .4rem;overflow:hidden;color:#fff;
  font-size:.72rem;line-height:1.25;box-shadow:var(--shadow)}
.ev .who{font-weight:600;display:block;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.ev .mt,.ev .rm{font-family:"IBM Plex Mono",monospace;display:block}
.ev .mt{font-size:.64rem;opacity:.85} .ev .rm{font-size:.6rem;letter-spacing:.08em;opacity:.9}
.empty{padding:2.5rem 1rem;text-align:center;color:var(--ink-3);font-size:.9rem}
section.next{margin-top:2rem}
h2{font-family:Archivo,sans-serif;font-weight:600;font-size:1.05rem;margin:0 0 .15rem}
.sub{color:var(--ink-3);font-size:.82rem;margin:0 0 .9rem}
ul.list{list-style:none;margin:0;padding:0;border-top:1px solid var(--line)}
ul.list li{display:grid;grid-template-columns:6.5rem 6.5rem 8rem 1fr;gap:.75rem;
  padding:.5rem .3rem;border-bottom:1px solid var(--line);align-items:center;font-size:.85rem}
ul.list .d{font-family:"IBM Plex Mono",monospace;font-size:.75rem;color:var(--ink-2)}
ul.list .r{font-family:"IBM Plex Mono",monospace;font-size:.68rem;letter-spacing:.07em;
  padding:.1rem .45rem;border-radius:2px;color:#fff;justify-self:start}
.banner{background:#F7E1DF;color:#A8332B;border:1px solid #A8332B;border-radius:3px;
  padding:.5rem .75rem;font-size:.82rem;margin-bottom:1rem}
footer{margin-top:2.5rem;padding-top:1rem;border-top:1px solid var(--line);
  font-family:"IBM Plex Mono",monospace;font-size:.7rem;color:var(--ink-3);line-height:1.7}
@media (prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important}}

/* ---------- kiosk / wall display ---------- */
body.kiosk{background:#0F1514;color:#E3E9E7;overflow:hidden}
.kiosk .k-wrap{height:100vh;display:flex;flex-direction:column;padding:2.2vh 2.4vw}
.kiosk .k-head{display:flex;align-items:baseline;gap:1.5rem;border-bottom:2px solid #2C3735;
  padding-bottom:1.4vh;margin-bottom:2vh}
.kiosk .k-head h1{font-size:3.4vh;letter-spacing:-.01em}
.kiosk .k-date{font-family:"IBM Plex Mono",monospace;font-size:2vh;color:#8A9793}
.kiosk .k-clock{margin-left:auto;font-family:"IBM Plex Mono",monospace;font-size:4.4vh;
  font-weight:500;font-variant-numeric:tabular-nums}
.kiosk .k-rooms{flex:1;display:grid;gap:1.6vh;grid-auto-rows:1fr;min-height:0}
.kiosk .k-room{border-radius:.6vh;padding:1.8vh 2vw;display:flex;align-items:center;
  gap:2vw;background:#171F1E;border-left:.9vh solid var(--rc,#666);min-height:0}
.kiosk .k-name{font-family:Archivo,sans-serif;font-weight:700;font-size:4vh;
  letter-spacing:.02em;width:22vw;flex:none}
.kiosk .k-state{font-size:2.6vh;color:#8A9793}
.kiosk .k-free{color:#63C08C;font-weight:600}
.kiosk .k-busy .k-who{font-size:3vh;font-weight:600;display:block}
.kiosk .k-busy .k-time{font-family:"IBM Plex Mono",monospace;font-size:2.2vh;color:#A2AFAC}
.kiosk .k-nextup{margin-left:auto;text-align:right;font-size:1.9vh;color:#8A9793;
  font-family:"IBM Plex Mono",monospace}
.kiosk .k-foot{margin-top:1.6vh;font-family:"IBM Plex Mono",monospace;font-size:1.5vh;color:#5E6B68;
  display:flex;gap:1.5rem}
.kiosk .k-stale{color:#E4756F}

/* ---------- sign-in / admin ---------- */
.pane{max-width:26rem;margin:9vh auto;padding:0 1.25rem}
.card{background:var(--surface);border:1px solid var(--line);border-radius:5px;
  padding:1.6rem 1.5rem;box-shadow:var(--shadow)}
.card h1{font-family:Archivo,sans-serif;font-size:1.35rem;margin:0 0 .2rem}
.card .lede{color:var(--ink-3);font-size:.86rem;margin:0 0 1.3rem}
label{display:block;font-size:.78rem;font-weight:600;margin:.9rem 0 .3rem;color:var(--ink-2)}
label .hint{display:block;font-weight:400;color:var(--ink-3);font-size:.74rem;margin-top:.15rem}
input[type=text],input[type=password]{width:100%;font:inherit;font-size:.9rem;padding:.5rem .6rem;
  border:1px solid var(--line);border-radius:3px;background:var(--ground);color:var(--ink)}
input:focus-visible{outline:2px solid var(--ink);outline-offset:1px}
.btn{display:inline-block;width:100%;text-align:center;font:inherit;font-size:.9rem;font-weight:600;
  padding:.6rem 1rem;border-radius:3px;border:1px solid transparent;cursor:pointer;
  background:var(--ink);color:var(--ground);margin-top:1.2rem}
.btn.ms{background:#2F2F2F;color:#fff;display:flex;align-items:center;justify-content:center;gap:.6rem}
.btn.ghost{background:transparent;color:var(--ink);border-color:var(--line);font-weight:500}
.msft{width:1rem;height:1rem;flex:none}
.sep{display:flex;align-items:center;gap:.75rem;margin:1.4rem 0 .2rem;
  color:var(--ink-3);font-size:.72rem;letter-spacing:.09em;text-transform:uppercase}
.sep::before,.sep::after{content:"";flex:1;height:1px;background:var(--line)}
.err{background:var(--risk-soft,#F7E1DF);color:#A8332B;border:1px solid #A8332B;border-radius:3px;
  padding:.5rem .7rem;font-size:.83rem;margin-top:1rem}
.ok{background:#DFEDE4;color:#2F7A4F;border:1px solid #2F7A4F;border-radius:3px;
  padding:.5rem .7rem;font-size:.83rem;margin-top:1rem}
.admin-wrap{max-width:44rem;margin:0 auto;padding:2.5rem 1.25rem 5rem}
.who{margin-left:auto;font-size:.8rem;color:var(--ink-3)}
.who a{color:inherit}