:root{
  --bg:#F5F6F8; --surface:#FFFFFF; --ink:#1F2A30; --muted:#6B7680;
  --line:#E3E6EA; --teal:#2F5D62; --teal-d:#234548; --gold:#B8862E;
  --danger:#B4453B; --danger-bg:#FBEAE8; --ok-bg:#EAF2EE;
}
@media (prefers-color-scheme: dark){
  :root:not([data-theme="light"]){
    --bg:#15191B; --surface:#1D2224; --ink:#E7E9EA; --muted:#9AA3A8;
    --line:#2B3134; --teal:#5A9BA0; --teal-d:#6FB0B5; --gold:#D4A94F;
    --danger:#E08277; --danger-bg:#3A2422; --ok-bg:#1E2E27;
  }
}
*{box-sizing:border-box}
html,body{height:100%;margin:0}
body{
  background:var(--bg); color:var(--ink);
  font-family:-apple-system,"Hiragino Kaku Gothic ProN","Yu Gothic",system-ui,"Segoe UI",sans-serif;
}
button{font-family:inherit;cursor:pointer}
a{color:inherit}

.app{display:flex;min-height:100vh}

/* Sidebar */
.side{width:210px;background:var(--teal-d);color:#EDF3F2;flex-shrink:0;padding:20px 14px;display:flex;flex-direction:column;gap:4px}
.side h1{font-size:15px;font-weight:700;margin:0 0 18px;line-height:1.4}
.side h1 span{display:block;font-size:11px;font-weight:400;opacity:.7;margin-top:2px}
.nav-btn{display:flex;align-items:center;gap:9px;padding:9px 10px;border-radius:7px;border:none;background:transparent;color:#DCEAE8;text-align:left;font-size:13.5px;text-decoration:none}
.nav-btn:hover{background:rgba(255,255,255,.08)}
.nav-btn.active{background:rgba(255,255,255,.16);font-weight:600}
.side .spacer{flex:1}
.side .who{font-size:12px;opacity:.75;padding:8px 10px;border-top:1px solid rgba(255,255,255,.15);margin-top:8px}
.side .who a{color:#DCEAE8}

/* Topbar */
.main{flex:1;display:flex;flex-direction:column;min-width:0}
.topbar{display:flex;align-items:center;gap:14px;padding:14px 22px;border-bottom:1px solid var(--line);background:var(--surface)}
.topbar h2{font-size:17px;margin:0;font-weight:700;flex-shrink:0}
.topbar .fill{flex:1}
.pill-group{display:flex;background:var(--bg);border:1px solid var(--line);border-radius:8px;overflow:hidden}
.pill-group a,.pill-group button{background:none;border:none;padding:6px 11px;font-size:12.5px;color:var(--muted);text-decoration:none}
.pill-group .on{background:var(--teal);color:#fff}
.iconbtn{background:var(--bg);border:1px solid var(--line);border-radius:7px;padding:6px 10px;font-size:13px;color:var(--ink);text-decoration:none}
.lang-toggle{display:flex;border:1px solid var(--line);border-radius:8px;overflow:hidden}
.lang-toggle a{border:none;background:var(--bg);padding:6px 10px;font-size:12px;color:var(--muted);text-decoration:none}
.lang-toggle .on{background:var(--gold);color:#fff}
.primary{background:var(--teal);color:#fff;border:none;border-radius:8px;padding:8px 14px;font-size:13px;font-weight:600;text-decoration:none;display:inline-block}
.primary:hover{background:var(--teal-d)}
.content{flex:1;overflow:auto;padding:20px 22px}

/* Login */
.login-wrap{min-height:100vh;display:flex;align-items:center;justify-content:center;background:linear-gradient(160deg,var(--teal-d),var(--teal))}
.login-card{background:var(--surface);border-radius:14px;padding:34px 30px;width:320px;box-shadow:0 20px 50px rgba(0,0,0,.25)}
.login-card h1{font-size:16px;margin:0 0 2px}
.login-card p.sub{color:var(--muted);font-size:12.5px;margin:0 0 22px}
.field{margin-bottom:14px}
.field label{display:block;font-size:12px;color:var(--muted);margin-bottom:5px}
.field input,.field select{width:100%;padding:9px 10px;border:1px solid var(--line);border-radius:7px;background:var(--bg);color:var(--ink);font-size:13.5px}
.login-card .primary{width:100%;margin-top:6px;padding:10px}
.login-note{margin-top:16px;font-size:11.5px;color:var(--muted);background:var(--bg);border-radius:7px;padding:9px 10px;line-height:1.5}

/* Calendar */
.cal-scroll{overflow-x:auto;border:1px solid var(--line);border-radius:10px;background:var(--surface)}
.cal-grid{display:grid;min-width:760px}
.cal-cell-h{padding:10px 8px;border-bottom:2px solid var(--line);border-left:1px solid var(--line);font-size:12.5px;font-weight:700;text-align:center;background:var(--bg);position:sticky;top:0}
.time-col-h{border-left:none;background:var(--surface)}
.time-col{padding:7px 8px;font-size:11px;color:var(--muted);text-align:right;border-top:1px solid var(--line);border-left:none}

.slot{border-top:1px solid var(--line);border-left:1px solid var(--line);min-height:34px;position:relative;padding:2px;overflow:visible}
.resv{background:var(--teal);color:#fff;border-radius:6px;padding:4px 7px;font-size:11px;line-height:1.3;overflow:hidden;cursor:pointer;position:absolute;top:2px;left:2px;right:2px;z-index:10}

.resv{background:var(--teal);color:#fff;border-radius:6px;padding:4px 7px;font-size:11px;line-height:1.3;height:100%;overflow:hidden;cursor:pointer}
.resv.ext {
    border: 2px dashed rgba(255, 255, 255, 0.7);
    box-sizing: border-box;
}
/* Completed: sedikit transparan + border hijau */
.resv.resv-completed {
    opacity: 0.75;
    border: 2px solid #2F6B4F;
    box-sizing: border-box;
}

/* Cancelled: strikethrough + abu-abu */
.resv.resv-cancelled {
    opacity: 0.4;
    text-decoration: line-through;
    filter: grayscale(0.6);
}
.resv b{display:block;font-size:11.5px}
.legend{display:flex;gap:16px;margin-top:12px;font-size:12px;color:var(--muted);align-items:center}
.dot{width:9px;height:9px;border-radius:3px;display:inline-block;margin-right:5px}

/* Table */
table{width:100%;border-collapse:collapse;background:var(--surface);border:1px solid var(--line);border-radius:10px;overflow:hidden}
th,td{padding:10px 12px;text-align:left;font-size:13px;border-bottom:1px solid var(--line)}
th{background:var(--bg);color:var(--muted);font-weight:600;font-size:11.5px}
tr:last-child td{border-bottom:none}
.badge{padding:2px 8px;border-radius:20px;font-size:11px;font-weight:600}
.badge.active{background:var(--ok-bg);color:#2F6B4F}
.badge.inactive{background:var(--danger-bg);color:var(--danger)}
.badge.admin{background:#EFE6D2;color:var(--gold)}
.badge.staff{background:#E4EDEE;color:var(--teal)}
.row-actions{display:flex;gap:6px}
.row-actions button,.row-actions a{background:none;border:1px solid var(--line);border-radius:6px;padding:4px 9px;font-size:11.5px;color:var(--ink);text-decoration:none}
.card-actions{display:flex;justify-content:space-between;align-items:center;margin-bottom:14px}
.hint{color:var(--muted);font-size:12.5px;margin:2px 0 14px}

/* Modal */
.overlay{position:fixed;inset:0;background:rgba(20,25,27,.45);display:none;align-items:center;justify-content:center;z-index:50;padding:16px}
.overlay.show{display:flex}
.modal{background:var(--surface);border-radius:12px;padding:22px;width:380px;max-width:100%;max-height:90vh;overflow:auto;position:relative}
.modal h3{margin:0 0 4px;font-size:15px}
.modal-top{display:flex;justify-content:space-between;align-items:flex-start}
.modal-top button{background:none;border:none;font-size:18px;color:var(--muted);line-height:1}
.conflict{background:var(--danger-bg);color:var(--danger);font-size:12px;padding:8px 10px;border-radius:7px;margin-top:10px;display:none}
.conflict.show{display:block}
.modal-actions{display:flex;gap:8px;margin-top:16px}
.modal-actions .ghost{flex:1;background:none;border:1px solid var(--line);border-radius:8px;padding:9px;font-size:13px;color:var(--ink)}
.modal-actions .primary{flex:1}
.two-col{display:grid;grid-template-columns:1fr 1fr;gap:10px}

.toast{position:fixed;bottom:20px;left:50%;transform:translateX(-50%);background:var(--teal-d);color:#fff;padding:10px 18px;border-radius:8px;font-size:13px;opacity:0;transition:opacity .25s;z-index:80}
.toast.show{opacity:1}

@media(max-width:720px){
  .side{position:fixed;left:0;top:0;bottom:0;transform:translateX(-100%);transition:transform .2s;z-index:40}
  .side.open{transform:translateX(0)}
  .menu-toggle{display:inline-flex!important}
  .topbar{padding:12px 14px}
  .content{padding:14px}
}
.menu-toggle{display:none}