/* E-TECH Room Booking — UI theme (ported from prototype v5). */
:root{
  --ink:#1a2230; --muted:#5b6678; --line:#e4e8ef; --bg:#f4f6fa;
  --accent:#2b6cb0; --accent-d:#22548a; --accent-soft:#eaf2fb;
  --green:#2f855a; --green-soft:#eafaf1; --red:#c53030; --red-soft:#fdeeee;
  --amber:#b7791f; --amber-soft:#fff7e8; --card:#ffffff;
  --shadow:0 1px 2px rgba(20,30,50,.06),0 8px 24px rgba(20,30,50,.06);
  --lift:0 10px 30px rgba(20,30,50,.13);
}
*{box-sizing:border-box}
html,body{margin:0;height:100%}
body{font-family:"Segoe UI",-apple-system,Roboto,Helvetica,Arial,sans-serif;
  color:var(--ink);background:var(--bg);font-size:14px;line-height:1.5}
button{font-family:inherit;cursor:pointer;border:none;background:none}
a{text-decoration:none;color:inherit}
.hidden{display:none !important}

/* ---------- Login ---------- */
#login{position:fixed;inset:0;display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,#e3eefb 0%,#f4f6fa 55%,#eaf3ec 100%);overflow:hidden}
#login::before,#login::after{content:"";position:absolute;border-radius:50%;filter:blur(8px);opacity:.5}
#login::before{width:360px;height:360px;background:radial-gradient(circle,#cfe2f7,transparent 70%);top:-80px;left:-60px}
#login::after{width:420px;height:420px;background:radial-gradient(circle,#d6efe0,transparent 70%);bottom:-120px;right:-80px}
.login-card{position:relative;width:390px;max-width:92vw;background:var(--card);border-radius:18px;
  box-shadow:var(--lift);padding:40px 36px;text-align:center}
.brand{display:inline-flex;align-items:center;gap:10px;font-weight:700;font-size:18px;color:var(--accent-d)}
.brand .dot{width:30px;height:30px;border-radius:8px;background:var(--accent);
  display:inline-flex;align-items:center;justify-content:center;color:#fff;font-size:16px}
.login-card h1{font-size:21px;margin:22px 0 6px}
.login-card p{color:var(--muted);margin:0 0 26px}
.ms-btn{width:100%;display:flex;align-items:center;justify-content:center;gap:10px;
  padding:13px 16px;border:1px solid var(--line);border-radius:11px;background:#fff;
  font-size:14px;font-weight:600;color:var(--ink);transition:.18s}
.ms-btn:hover{border-color:var(--accent);background:var(--accent-soft);transform:translateY(-1px);box-shadow:var(--shadow)}
.ms-grid{width:18px;height:18px;display:grid;grid-template-columns:1fr 1fr;gap:2px}
.ms-grid i{display:block;border-radius:1px}
.ms-grid i:nth-child(1){background:#f25022}.ms-grid i:nth-child(2){background:#7fba00}
.ms-grid i:nth-child(3){background:#00a4ef}.ms-grid i:nth-child(4){background:#ffb900}
.login-note{margin-top:18px;font-size:12px;color:var(--muted)}
.login-dev{margin-top:14px;font-size:12px}
.login-dev a{color:var(--accent);font-weight:600}

/* ---------- App shell ---------- */
#app{display:flex;flex-direction:column;height:100%}
.topbar{height:58px;background:var(--card);border-bottom:1px solid var(--line);
  display:flex;align-items:center;gap:18px;padding:0 20px;flex:0 0 auto;z-index:5}
.topbar .brand{font-size:15px}
.spacer{flex:1}
.who{display:flex;align-items:center;gap:9px}
.avatar{width:32px;height:32px;border-radius:50%;background:var(--accent);color:#fff;
  display:flex;align-items:center;justify-content:center;font-weight:700;font-size:13px}
.who .meta{line-height:1.1}.who .meta b{font-size:13px}.who .meta span{font-size:11px;color:var(--muted)}
.linkbtn{color:var(--muted);font-size:12.5px;padding:6px 8px;border-radius:7px;transition:.15s}
.linkbtn:hover{background:var(--bg);color:var(--ink)}

.body{flex:1;display:flex;min-height:0}
.side{width:212px;background:var(--card);border-right:1px solid var(--line);padding:14px 12px;flex:0 0 auto}
.nav-item{display:flex;align-items:center;gap:10px;width:100%;padding:10px 12px;border-radius:9px;
  color:var(--muted);font-size:13.5px;font-weight:600;text-align:left;transition:.14s}
.nav-item:hover{background:var(--bg);color:var(--ink);transform:translateX(2px)}
.nav-item.on{background:var(--accent-soft);color:var(--accent-d)}
.nav-item .ic{width:18px;text-align:center}
.nav-group{font-size:11px;letter-spacing:.04em;text-transform:uppercase;color:#9aa4b2;margin:16px 8px 6px;font-weight:700}
.main{flex:1;overflow:auto;padding:24px 28px}
.page-h{display:flex;align-items:center;gap:14px;margin:0 0 18px}
.page-h h2{font-size:20px;margin:0}
.page-h .sub{color:var(--muted);font-size:13px}

/* stat strip */
.stats{display:flex;gap:14px;margin-bottom:20px}
.stat{flex:1;background:var(--card);border:1px solid var(--line);border-radius:12px;padding:16px 18px;box-shadow:var(--shadow);transition:.18s}
.stat:hover{transform:translateY(-3px);box-shadow:var(--lift)}
.stat .n{font-size:26px;font-weight:700;color:var(--accent-d);line-height:1}
.stat .l{font-size:12px;color:var(--muted);margin-top:6px}
.stat.green .n{color:var(--green)} .stat.amber .n{color:var(--amber)}

.datebar{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.datebar a,.datebar button{width:32px;height:32px;border:1px solid var(--line);border-radius:8px;background:#fff;color:var(--muted);font-size:15px;transition:.15s;display:inline-flex;align-items:center;justify-content:center}
.datebar a:hover,.datebar button:hover{border-color:var(--accent);color:var(--accent)}
.datebar .d{font-weight:600}
.legend{display:flex;gap:16px;margin-left:auto;font-size:12px;color:var(--muted);align-items:center}
.legend i{display:inline-block;width:12px;height:12px;border-radius:3px;margin-right:5px;vertical-align:-1px}

.grid-wrap{background:var(--card);border:1px solid var(--line);border-radius:12px;overflow:hidden;box-shadow:var(--shadow)}
table.grid{border-collapse:collapse;width:100%;table-layout:fixed}
table.grid th,table.grid td{border-bottom:1px solid var(--line);border-right:1px solid var(--line)}
table.grid th{background:#fbfcfe;font-size:11px;color:var(--muted);font-weight:600;padding:8px 4px;text-align:center}
table.grid th.room{text-align:left;padding-left:14px;width:150px}
table.grid td.room{padding:10px 14px;font-weight:600;font-size:13px;background:#fbfcfe}
table.grid td.room small{display:block;color:var(--muted);font-weight:500;font-size:11px}
table.grid tbody td{position:relative;height:42px}
.slot{cursor:pointer;transition:.1s}
.slot.free:hover{background:var(--accent-soft)}
.slot.free:hover::after{content:"+";position:absolute;inset:0;display:flex;align-items:center;justify-content:center;color:var(--accent);font-weight:700}
td.busy{cursor:default;background:repeating-linear-gradient(45deg,#eef2f7,#eef2f7 6px,#e7edf4 6px,#e7edf4 12px)}
.booking{position:absolute;inset:3px;border-radius:6px;background:var(--accent);color:#fff;
  font-size:11px;padding:4px 7px;overflow:hidden;line-height:1.25;box-shadow:0 1px 3px rgba(43,108,176,.4);will-change:transform,opacity}
.booking.mine{background:var(--green)}
.booking b{font-weight:600;display:block;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.booking span{opacity:.85}

.card{background:var(--card);border:1px solid var(--line);border-radius:12px;box-shadow:var(--shadow)}
.listrow{display:flex;align-items:center;gap:14px;padding:14px 18px;border-bottom:1px solid var(--line);transition:.15s}
.listrow:hover{background:#fbfcfe}
.listrow:last-child{border-bottom:none}
.listrow .pill{font-size:11px;font-weight:700;padding:3px 9px;border-radius:20px}
.pill.blue{background:var(--accent-soft);color:var(--accent-d)}
.pill.green{background:var(--green-soft);color:var(--green)}
.pill.amber{background:var(--amber-soft);color:var(--amber)}
.grow{flex:1}.row-title{font-weight:600}.row-sub{font-size:12.5px;color:var(--muted)}
.btn{padding:8px 14px;border-radius:9px;font-weight:600;font-size:13px;transition:.14s}
.btn:active{transform:scale(.96)}
.btn-primary{background:var(--accent);color:#fff}.btn-primary:hover{background:var(--accent-d)}
.btn-ghost{border:1px solid var(--line);color:var(--muted);background:#fff}.btn-ghost:hover{border-color:var(--accent);color:var(--accent)}
.btn-green{background:var(--green);color:#fff}.btn-green:hover{filter:brightness(.94)}
.btn-red{border:1px solid var(--red);color:var(--red);background:#fff}.btn-red:hover{background:var(--red-soft)}
.empty{padding:46px;text-align:center;color:var(--muted)}

.scrim{position:fixed;inset:0;background:rgba(20,30,50,.42);display:flex;align-items:center;justify-content:center;z-index:40}
.modal{width:420px;max-width:94vw;background:var(--card);border-radius:16px;box-shadow:0 24px 60px rgba(20,30,50,.3);padding:24px}
.modal h3{margin:0 0 4px;font-size:17px}.modal .msub{color:var(--muted);font-size:12.5px;margin-bottom:16px}
.field{margin-bottom:13px}.field label{display:block;font-size:12px;font-weight:600;color:var(--muted);margin-bottom:5px}
.field input,.field select{width:100%;padding:10px 12px;border:1px solid var(--line);border-radius:9px;font-size:14px;font-family:inherit}
.field input:focus,.field select:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft)}
.modal-actions{display:flex;gap:10px;justify-content:flex-end;margin-top:20px}
.inv-note{font-size:11.5px;color:var(--muted);margin:-4px 0 2px}
.form-err{color:var(--red);font-size:12.5px;margin:6px 0 0;min-height:1em}

#toast{position:fixed;bottom:26px;left:50%;transform:translateX(-50%) translateY(20px);
  background:var(--ink);color:#fff;padding:12px 20px;border-radius:11px;font-size:13.5px;font-weight:600;
  box-shadow:0 10px 30px rgba(20,30,50,.3);z-index:60;opacity:0;display:flex;gap:9px;align-items:center}
#toast .tick{width:20px;height:20px;border-radius:50%;background:var(--green);display:flex;align-items:center;justify-content:center;font-size:12px}
.ribbon{margin-bottom:18px;padding:11px 16px;border-radius:10px;background:var(--amber-soft);color:#8a5a12;font-size:12.5px;border:1px solid #f3e2c0}
.ribbon b{color:var(--amber)}
.htmx-request.btn{opacity:.6;pointer-events:none}