:root{
  --bg:#0a0a0a;
  --panel:#111111;
  --card:#1a1a1a;
  --muted:#a0a0a0;
  --text:#ffffff;
  --border:rgba(255,255,255,.12);
  --primary:#ff7a00;
  --primary-light:#ff9933;
  --primary-dark:#cc6200;
  --danger:#ff4444;
  --chip:#1f1f1f;
  --shadow: 0 12px 30px rgba(0,0,0,.5);
  --radius:12px;
  --radius2:8px;
  --font: 'Segoe UI', ui-sans-serif, system-ui, -apple-system, Roboto, Helvetica, Arial, sans-serif;
}

*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  font-family:var(--font);
  background: var(--bg);
  color:var(--text);
}

.hidden{display:none !important}

.topbar{
  position:sticky; top:0;
  display:flex; align-items:center; justify-content:space-between;
  padding:16px 24px;
  border-bottom:1px solid var(--border);
  background:rgba(10,10,10,.95);
  backdrop-filter: blur(12px);
  z-index:10;
}

.brand{display:flex; gap:14px; align-items:center}
.logo{
  width:48px;height:48px;border-radius:10px;
  display:grid; place-items:center;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color:#000;
  font-weight:900;
  font-size:14px;
  letter-spacing:-0.5px;
  box-shadow: 0 4px 20px rgba(255,122,0,.3);
}
.logo img{
  width:100%;
  height:100%;
  object-fit:contain;
  border-radius:10px;
}
.title{font-weight:700; font-size:18px; letter-spacing:0}
.subtitle{font-size:13px; color:var(--muted)}

.topbar-actions{display:flex; gap:12px; align-items:center}
.user-badge{
  padding:10px 16px;
  border:1px solid var(--border);
  border-radius:8px;
  background:var(--card);
  color:var(--text);
  font-size:13px;
  font-weight:500;
}

.center{
  min-height: calc(100vh - 70px);
  display:grid; place-items:center;
  padding:18px;
}

.layout{
  display:grid;
  grid-template-columns: 280px 1fr;
  gap:20px;
  padding:20px;
  min-height: calc(100vh - 82px);
}

@media (max-width: 1100px){
  .layout{grid-template-columns:1fr}
}

.card{
  background: var(--card);
  border:1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding:20px;
}

.content{
  min-width:0;
}
.content .card{
  height:100%;
}

.auth{width:min(420px, 100%);}
h1,h2,h3{margin:0 0 10px 0}
.muted{color:var(--muted); font-size:13px; margin-top:4px}

.form{display:flex; flex-direction:column; gap:10px; margin-top:10px}
.form label{display:flex; flex-direction:column; gap:6px; font-size:14px}
.form input, .form textarea, .form select{
  padding:12px 14px;
  border-radius: var(--radius2);
  border:1px solid var(--border);
  background: var(--panel);
  color:var(--text);
  outline:none;
  font-size:14px;
  transition: border-color .2s, box-shadow .2s;
}
.form input::placeholder, .form textarea::placeholder{color:rgba(160,160,160,.6)}
.form input:focus, .form textarea:focus, .form select:focus{
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(255,122,0,.15);
}

.hint{
  margin-top:16px;
  border-top:1px dashed var(--border);
  padding-top:16px;
  color:var(--muted);
  font-size:13px;
}
.hint code{
  background: var(--panel);
  padding:3px 8px;
  border-radius:6px;
  border:1px solid var(--border);
  color: var(--primary);
  font-family: 'Consolas', 'Monaco', monospace;
}

.btn{
  padding:10px 16px;
  border-radius: var(--radius2);
  border:1px solid var(--border);
  background: var(--panel);
  color:var(--text);
  cursor:pointer;
  transition: all .15s ease;
  font-weight:600;
  font-size:13px;
}
.btn:hover{background: var(--chip); border-color: var(--muted)}
.btn:active{transform: translateY(1px)}
.btn.primary{
  background: var(--primary);
  border-color: var(--primary);
  color:#000;
  font-weight:700;
}
.btn.primary:hover{
  background: var(--primary-light);
  border-color: var(--primary-light);
}
.btn.danger{
  background: rgba(255,68,68,.15);
  border-color: rgba(255,68,68,.4);
  color: #ff6b6b;
}
.btn.danger:hover{
  background: rgba(255,68,68,.25);
}
.btn.ghost{background: transparent}

.row{display:flex; gap:8px; align-items:center}
.row.space{justify-content:space-between}
.row.end{justify-content:flex-end}
.row.wrap{flex-wrap:wrap; margin-top:12px; margin-bottom:12px}

.chip{
  padding:8px 12px;
  border-radius:var(--radius2);
  border:1px solid var(--border);
  background: var(--chip);
  color: var(--muted);
  cursor:pointer;
  font-weight:600;
  font-size:12px;
  transition: all .15s ease;
  flex:1;
  text-align:center;
}
.chip:hover{border-color: var(--muted)}
.chip.active{background: rgba(255,122,0,.2); color: var(--primary); border-color: var(--primary)}

.range{
  font-weight:600;
  color:var(--text);
  font-size:13px;
  text-align:center;
  flex:1;
}

.sidebar{
  display:flex;
  flex-direction:column;
  gap:12px;
}
.sidebar .card{
  padding:16px;
}
.sidebar h2{
  font-size:16px;
  margin:0;
}
.sidebar h3{
  font-size:14px;
  margin:0 0 12px 0;
}
.sidebar-header{
  display:flex;
  justify-content:space-between;
  align-items:center;
  margin-bottom:12px;
}
.btn.small{
  padding:8px 12px;
  font-size:12px;
}
.view-tabs{
  display:flex;
  gap:6px;
  margin-bottom:12px;
}
.nav-row{
  display:flex;
  align-items:center;
  justify-content:space-between;
  margin-bottom:12px;
}
.nav-btn{
  width:36px;
  height:36px;
  border:1px solid var(--border);
  background:var(--panel);
  color:var(--text);
  border-radius:var(--radius2);
  cursor:pointer;
  font-size:14px;
  transition:all .15s ease;
}
.nav-btn:hover{
  border-color:var(--primary);
  color:var(--primary);
}
.filter-group{
  margin-bottom:12px;
}
.filter-group label{
  display:block;
  font-size:13px;
  color:var(--muted);
  margin-bottom:6px;
}
.filter-group input[type="text"]{
  width:100%;
  padding:10px 12px;
  border:1px solid var(--border);
  background:var(--panel);
  color:var(--text);
  border-radius:var(--radius2);
  font-size:13px;
}
.filter-group input[type="text"]:focus{
  border-color:var(--primary);
  outline:none;
}
.checkbox-group{
  display:flex;
  align-items:center;
  gap:8px;
}
.checkbox-group label{
  margin:0;
  cursor:pointer;
}
.checkbox-group input[type="checkbox"]{
  width:18px;
  height:18px;
  accent-color:var(--primary);
  cursor:pointer;
}

.calendar{
  min-height: calc(100vh - 140px);
  padding:0;
  overflow-x: auto;
}

/* Calendar grid (month) */
.month-grid{
  display:grid;
  grid-template-columns: repeat(7, minmax(100px, 1fr));
  gap:8px;
  min-width: 750px;
}
.dow{
  font-size:12px;
  font-weight:600;
  color:var(--muted);
  padding:8px 10px;
  text-transform:uppercase;
  letter-spacing:0.5px;
}
.day{
  border:1px solid var(--border);
  border-radius: var(--radius);
  padding:10px;
  min-height: 100px;
  background: var(--panel);
  display:flex;
  flex-direction:column;
  gap:6px;
  transition: border-color .15s ease;
}
.day:hover{
  border-color: var(--primary);
}
.day .daynum{
  display:flex; justify-content:space-between; align-items:center;
  font-weight:900;
}
.badge-today{
  font-size:10px;
  padding:3px 8px;
  border-radius:4px;
  border:1px solid var(--primary);
  background: rgba(255,122,0,.2);
  color: var(--primary);
  font-weight:600;
}
.events{
  display:flex; flex-direction:column; gap:6px;
}
.event{
  border:1px solid var(--border);
  border-left:3px solid var(--primary);
  border-radius: 6px;
  padding:8px 10px;
  background: var(--card);
  cursor:pointer;
  transition: all .15s ease;
}
.event:hover{
  border-color: var(--primary);
  background: var(--chip);
}
.event .t{font-weight:600; font-size:12px; line-height:1.3}
.event .m{font-size:11px; color:var(--muted); margin-top:2px}
.event.cancelled{opacity:.5; text-decoration: line-through}

/* Week/Day list */
.listview{
  display:flex; flex-direction:column; gap:10px;
}
.slot{
  border:1px solid var(--border);
  border-radius: var(--radius);
  padding:16px;
  background: var(--panel);
}
.slot .head{
  display:flex; justify-content:space-between; align-items:center;
  margin-bottom:8px;
}
.slot .head .date{font-weight:900}
.slot .head .small{color:var(--muted); font-size:12px}
.slot .items{display:flex; flex-direction:column; gap:8px}

/* Modal */
.backdrop{
  position:fixed; inset:0;
  background: rgba(0,0,0,.55);
  z-index:20;
}
.modal{
  position:fixed;
  left:50%; top:50%;
  transform: translate(-50%,-50%);
  width: min(680px, calc(100% - 24px));
  z-index:30;
  background: var(--card);
  border:1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: 0 20px 50px rgba(0,0,0,.6);
}
.modal-header{
  display:flex; align-items:center; justify-content:space-between;
  padding:14px 14px 10px 14px;
  border-bottom:1px solid var(--border);
}
.modal-body{padding:14px}
.modal-footer{
  display:flex; justify-content:space-between; align-items:center;
  margin-top:6px;
}
.icon-btn{
  border:1px solid var(--border);
  background: var(--panel);
  color: var(--text);
  width:40px;height:40px;
  border-radius: var(--radius2);
  cursor:pointer;
  transition: all .15s ease;
}
.icon-btn:hover{
  border-color: var(--muted);
  background: var(--chip);
}
.grid2{display:grid; grid-template-columns: 1fr 1fr; gap:10px}
.grid3{display:grid; grid-template-columns: 1.2fr 1fr .8fr; gap:10px}
@media (max-width: 720px){
  .grid2,.grid3{grid-template-columns:1fr}
}

/* Users list */
.list{margin-top:12px; display:flex; flex-direction:column; gap:8px}
.user-row{
  display:flex; justify-content:space-between; align-items:center;
  border:1px solid var(--border);
  background: var(--panel);
  border-radius: var(--radius2);
  padding:14px;
}
.user-row .left{display:flex; flex-direction:column}
.user-row .left .mail{font-weight:900}
.user-row .left .role{color:var(--muted); font-size:12px}

/* Error message */
.error-msg{
  padding:12px 14px;
  border-radius: var(--radius2);
  background: rgba(255,68,68,.1);
  border:1px solid rgba(255,68,68,.3);
  color: #ff6b6b;
  font-size:13px;
  margin-top:8px;
}

/* Login page */
.login-page{
  min-height:100vh;
  display:flex;
  align-items:center;
  justify-content:center;
  background: linear-gradient(135deg, #0a0a0a 0%, #1a1a1a 100%);
  padding:20px;
}
.login-box{
  width:100%;
  max-width:380px;
  background: var(--card);
  border:1px solid var(--border);
  border-radius: var(--radius);
  padding:40px 32px;
  text-align:center;
  box-shadow: 0 20px 60px rgba(0,0,0,.5);
}
.login-logo{
  width:80px;
  height:80px;
  margin:0 auto 20px auto;
  border-radius:16px;
  overflow:hidden;
  box-shadow: 0 8px 30px rgba(255,122,0,.3);
}
.login-logo img{
  width:100%;
  height:100%;
  object-fit:contain;
}
.login-box h1{
  color: var(--text);
  font-size:28px;
  font-weight:700;
  margin:0 0 8px 0;
}
.login-box .muted{
  margin-bottom:24px;
}
.login-box .form{
  text-align:left;
}
.btn.full{
  width:100%;
  padding:12px;
  font-size:13px;
}

/* Scrollbar styling */
::-webkit-scrollbar{width:8px;height:8px}
::-webkit-scrollbar-track{background:var(--bg)}
::-webkit-scrollbar-thumb{background:var(--chip);border-radius:4px}
::-webkit-scrollbar-thumb:hover{background:var(--muted)}