*{margin:0;padding:0;box-sizing:border-box}
@import url('https://fonts.googleapis.com/css2?family=DM+Sans:opsz,wght@9..40,300;9..40,400;9..40,500;9..40,600;9..40,700&display=swap');
:root{--bg:#0f1923;--sidebar:#0a1219;--card:#162231;--border:#1e3044;--accent:#e94560;--accent2:#3b82f6;--text:#c8d6e5;--text-dim:#6b7f95;--success:#22c55e;--warning:#f59e0b;--danger:#ef4444}
body{font-family:'DM Sans',-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,sans-serif;background:var(--bg);color:var(--text);line-height:1.5}
.hidden{display:none !important}

.login-page{min-height:100vh;display:flex;align-items:center;justify-content:center;background:linear-gradient(165deg,#fef2f4 0%,#f8f9ff 40%,#f0f4ff 100%)}
.login-box{background:rgba(255,255,255,0.7);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border:1px solid rgba(0,0,0,0.06);border-radius:20px;padding:48px 40px;width:100%;max-width:420px;text-align:center;box-shadow:0 8px 40px rgba(0,0,0,0.06)}
.login-box h1{color:#1D1D1F;font-size:1.8rem;margin-bottom:4px;letter-spacing:-0.5px}
.login-box>p{color:#6E6E73;margin-bottom:28px;font-size:0.88rem}
.login-box input{width:100%;padding:12px 16px;margin-bottom:12px;background:rgba(255,255,255,0.6);border:1px solid #E8E8ED;border-radius:12px;color:#1D1D1F;font-size:0.9rem;font-family:inherit;outline:none;transition:border 0.2s,box-shadow 0.2s}
.login-box input:focus{border-color:var(--accent);box-shadow:0 0 0 3px rgba(233,69,96,0.08)}
.login-box input::placeholder{color:#A1A1A6}
.login-box button[type=submit]{width:100%;padding:13px;background:#1D1D1F;color:#fff;border:none;border-radius:12px;font-size:0.92rem;font-weight:600;cursor:pointer;transition:all 0.2s;font-family:inherit}
.login-box button[type=submit]:hover{background:#424245;transform:translateY(-1px);box-shadow:0 4px 16px rgba(0,0,0,0.12)}
.error{color:#ef4444;font-size:0.82rem;margin-top:8px}
.success{color:#22c55e;font-size:0.82rem;margin-top:8px}
.login-hint{margin-top:16px;color:#A1A1A6;font-size:0.78rem}
.auth-tabs{display:flex;gap:0;margin-bottom:24px;background:#F5F5F7;border-radius:10px;padding:3px;border:1px solid #E8E8ED}
.auth-tab{flex:1;padding:10px;background:none;border:none;color:#6E6E73;font-size:0.85rem;font-weight:500;cursor:pointer;border-radius:8px;transition:all 0.2s;font-family:inherit}
.auth-tab.active{background:#fff;color:#1D1D1F;box-shadow:0 1px 4px rgba(0,0,0,0.08)}
.auth-tab:hover:not(.active){color:#1D1D1F}
.login-box select{width:100%;padding:12px 16px;margin-bottom:12px;background:rgba(255,255,255,0.6);border:1px solid #E8E8ED;border-radius:12px;color:#1D1D1F;font-size:0.9rem;font-family:inherit;outline:none;transition:border 0.2s;-webkit-appearance:none;appearance:none}

.dashboard{display:flex;min-height:100vh}
.sidebar{width:240px;background:var(--sidebar);border-right:1px solid var(--border);display:flex;flex-direction:column;position:fixed;height:100vh;z-index:50;transition:transform 0.3s}
.sidebar-logo{padding:20px 24px;font-size:1.4rem;font-weight:800;color:#fff;border-bottom:1px solid var(--border)}
.sidebar-nav{flex:1;padding:15px 0}
.sidebar-nav a{display:flex;align-items:center;gap:12px;padding:11px 24px;color:var(--text-dim);text-decoration:none;font-size:0.9rem;font-weight:500;transition:all 0.2s;border-left:3px solid transparent}
.sidebar-nav a:hover,.sidebar-nav a.active{color:#fff;background:rgba(233,69,96,0.08);border-left-color:var(--accent)}
.nav-icon{font-size:1rem;width:20px;text-align:center}
.sidebar-footer{padding:15px 24px;border-top:1px solid var(--border)}
.sidebar-footer button{width:100%;padding:10px;background:none;border:1px solid var(--border);border-radius:6px;color:var(--text-dim);cursor:pointer;font-size:0.85rem;transition:all 0.2s}
.sidebar-footer button:hover{border-color:var(--danger);color:var(--danger)}

.main-content{flex:1;margin-left:240px;min-height:100vh}
.topbar{display:flex;align-items:center;gap:15px;padding:15px 30px;background:var(--sidebar);border-bottom:1px solid var(--border);position:sticky;top:0;z-index:40}
.topbar h2{flex:1;font-size:1.15rem;color:#fff}
.topbar-right{color:var(--text-dim);font-size:0.9rem}
.sidebar-toggle{display:none;background:none;border:none;color:#fff;font-size:1.3rem;cursor:pointer}
.page-content{padding:25px 30px}

.stats-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:18px;margin-bottom:25px}
.stat-card{background:var(--card);border:1px solid var(--border);border-radius:12px;padding:25px;text-align:center}
.stat-value{font-size:2rem;font-weight:800;color:#fff;margin-bottom:4px}
.stat-label{color:var(--text-dim);font-size:0.85rem}

.content-grid{display:grid;grid-template-columns:2fr 1fr;gap:20px}
.card{background:var(--card);border:1px solid var(--border);border-radius:12px;overflow:hidden}
.card-header{display:flex;justify-content:space-between;align-items:center;padding:18px 22px;border-bottom:1px solid var(--border)}
.card-header h3{font-size:1rem;color:#fff}
.card-body{padding:18px 22px}

.table{width:100%;border-collapse:collapse;font-size:0.85rem}
.table th{text-align:left;padding:10px 8px;color:var(--text-dim);font-weight:600;border-bottom:1px solid var(--border);font-size:0.78rem;text-transform:uppercase;letter-spacing:0.5px}
.table td{padding:10px 8px;border-bottom:1px solid rgba(30,48,68,0.5);vertical-align:middle}
.table tr:last-child td{border-bottom:none}
.table tr:hover td{background:rgba(233,69,96,0.03)}

.badge{display:inline-block;padding:3px 10px;border-radius:20px;font-size:0.75rem;font-weight:600}
.badge-confirmed{background:rgba(34,197,94,0.15);color:var(--success)}
.badge-pending{background:rgba(245,158,11,0.15);color:var(--warning)}
.badge-cancelled{background:rgba(239,68,68,0.15);color:var(--danger)}
.badge-completed{background:rgba(59,130,246,0.15);color:var(--accent2)}
.badge-channel{background:rgba(59,130,246,0.1);color:var(--accent2);padding:4px 12px;margin:4px}

.btn{padding:10px 20px;background:var(--accent);color:#fff;border:none;border-radius:6px;cursor:pointer;font-size:0.9rem;font-weight:600;transition:background 0.2s}
.btn:hover{background:#d63851}
.btn-sm{padding:7px 14px;font-size:0.8rem}
.btn-outline{background:none;border:1px solid var(--border);color:var(--text)}
.btn-outline:hover{border-color:var(--accent);color:var(--accent);background:none}
.btn-danger{background:var(--danger)}
.btn-danger:hover{background:#dc2626}
.btn-success{background:var(--success)}
.btn-success:hover{background:#16a34a}

.filters{display:flex;gap:10px;margin-bottom:15px;flex-wrap:wrap}
.filters select,.filters input{padding:8px 12px;background:var(--bg);border:1px solid var(--border);border-radius:6px;color:var(--text);font-size:0.85rem;outline:none}

.rooms-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:18px}
.room-card{background:var(--bg);border:1px solid var(--border);border-radius:10px;padding:22px;transition:border-color 0.2s}
.room-card:hover{border-color:var(--accent)}
.room-card h4{color:#fff;margin-bottom:8px;font-size:1rem}
.room-card .room-info{color:var(--text-dim);font-size:0.85rem;margin-bottom:5px}
.room-card .room-price{color:var(--accent);font-weight:700;font-size:1.2rem;margin:10px 0}
.room-card .room-actions{display:flex;gap:8px;margin-top:12px}

.channels-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:18px}
.channel-card{background:var(--bg);border:1px solid var(--border);border-radius:10px;padding:22px;display:flex;align-items:center;gap:18px}
.channel-icon{width:48px;height:48px;border-radius:10px;display:flex;align-items:center;justify-content:center;font-size:1.5rem;font-weight:800;color:#fff;flex-shrink:0}
.channel-info{flex:1}
.channel-info h4{color:#fff;font-size:0.95rem;margin-bottom:3px}
.channel-info p{color:var(--text-dim);font-size:0.8rem}
.channel-toggle{position:relative;width:44px;height:24px;cursor:pointer}
.channel-toggle input{display:none}
.channel-toggle .slider{position:absolute;inset:0;background:var(--border);border-radius:12px;transition:background 0.3s}
.channel-toggle .slider:before{content:'';position:absolute;width:18px;height:18px;background:#fff;border-radius:50%;top:3px;left:3px;transition:transform 0.3s}
.channel-toggle input:checked+.slider{background:var(--success)}
.channel-toggle input:checked+.slider:before{transform:translateX(20px)}

.calendar-grid{overflow-x:auto}
.cal-table{width:100%;border-collapse:collapse;font-size:0.8rem;min-width:800px}
.cal-table th{padding:8px 4px;text-align:center;color:var(--text-dim);font-weight:600;font-size:0.75rem;position:sticky;top:0;background:var(--card)}
.cal-table td{padding:6px 4px;text-align:center;border:1px solid rgba(30,48,68,0.3)}
.cal-table .room-label{text-align:left;padding-left:10px;color:#fff;font-weight:600;min-width:120px;position:sticky;left:0;background:var(--card);z-index:1}
.cal-cell{width:28px;height:28px;border-radius:4px;margin:0 auto;display:flex;align-items:center;justify-content:center;font-size:0.7rem;color:transparent}
.cal-cell.free{background:rgba(34,197,94,0.1)}
.cal-cell.booked{background:rgba(233,69,96,0.25);color:rgba(233,69,96,0.6)}
.cal-cell.checkin{background:rgba(59,130,246,0.25)}
.cal-cell.checkout{background:rgba(245,158,11,0.25)}
.cal-nav{display:flex;align-items:center;gap:12px}
.cal-nav button{background:none;border:1px solid var(--border);color:var(--text);padding:5px 12px;border-radius:4px;cursor:pointer;font-size:0.9rem}
.cal-nav button:hover{border-color:var(--accent);color:var(--accent)}
#cal-month{color:#fff;font-weight:600;min-width:140px;text-align:center}
.cal-legend{display:flex;gap:20px;margin-top:15px;justify-content:center}
.cal-legend span{display:flex;align-items:center;gap:6px;color:var(--text-dim);font-size:0.8rem}
.dot{display:inline-block;width:12px;height:12px;border-radius:3px}
.dot-free{background:rgba(34,197,94,0.3)}
.dot-booked{background:rgba(233,69,96,0.4)}
.dot-checkin{background:rgba(59,130,246,0.4)}
.dot-checkout{background:rgba(245,158,11,0.4)}

.form{max-width:500px}
.form-group{margin-bottom:18px}
.form-group label{display:block;margin-bottom:6px;color:var(--text-dim);font-size:0.85rem;font-weight:600}
.form-group input,.form-group select,.form-group textarea{width:100%;padding:10px 14px;background:var(--bg);border:1px solid var(--border);border-radius:6px;color:#fff;font-size:0.9rem;outline:none;transition:border 0.2s}
.form-group input:focus,.form-group select:focus{border-color:var(--accent)}
.form-group textarea{resize:vertical;min-height:80px}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:15px}

.modal-overlay{position:fixed;inset:0;background:rgba(0,0,0,0.6);display:flex;align-items:center;justify-content:center;z-index:200;backdrop-filter:blur(4px)}
.modal{background:var(--card);border:1px solid var(--border);border-radius:14px;width:90%;max-width:550px;max-height:90vh;overflow-y:auto}
.modal-header{display:flex;justify-content:space-between;align-items:center;padding:18px 22px;border-bottom:1px solid var(--border)}
.modal-header h3{color:#fff;font-size:1rem}
.modal-close{background:none;border:none;color:var(--text-dim);font-size:1.5rem;cursor:pointer;line-height:1}
.modal-close:hover{color:var(--danger)}
.modal-body{padding:22px}

.ical-row{display:flex;gap:10px;align-items:center;margin-bottom:10px;background:var(--bg);padding:10px 14px;border-radius:6px}
.ical-row span{flex:1;font-size:0.85rem;color:var(--text)}
.ical-row code{flex:2;font-size:0.75rem;color:var(--text-dim);word-break:break-all}
.ical-row button{flex-shrink:0}

.empty-state{text-align:center;padding:40px;color:var(--text-dim)}
.empty-state p{margin-bottom:15px}

.table .btn-sm{padding:4px 10px;font-size:0.75rem;margin:2px}

@media(max-width:768px){
    .sidebar{transform:translateX(-100%)}
    .sidebar.open{transform:translateX(0)}
    .main-content{margin-left:0}
    .sidebar-toggle{display:block}
    .content-grid{grid-template-columns:1fr}
    .stats-grid{grid-template-columns:repeat(2,1fr)}
    .form-row{grid-template-columns:1fr}
}