:root{
    --teal-dark:#0E3B36;
    --teal-mid:#154E47;
    --teal-soft:#1E655C;
    --sand:#FAF3E7;
    --sand-deep:#F0E6D3;
    --gold:#C9A66B;
    --gold-soft:#E4CFA0;
    --clay:#C1502E;
    --clay-soft:#F3D9CE;
    --sage:#7FA895;
    --sage-soft:#DCE9E2;
    --ink:#1C2B28;
    --ink-soft:#5B6B66;
    --white:#FFFFFF;
    --radius:14px;
    --shadow: 0 6px 20px rgba(14,59,54,0.10);
  }
  *{box-sizing:border-box;}
  body{margin:0;font-family:'Work Sans',sans-serif;background:var(--sand);color:var(--ink);}
  h1,h2,h3,.display{font-family:'Fraunces',serif;}
  ::selection{background:var(--gold-soft);}
  button{font-family:inherit;cursor:pointer;}
  input,select,textarea{font-family:inherit;}

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

  /* SIDEBAR */
  .sidebar{
    width:250px;flex-shrink:0;background:var(--teal-dark);
    color:var(--sand);display:flex;flex-direction:column;
    padding:26px 16px;position:sticky;top:0;height:100vh;
  }
  .brand{padding:0 8px 22px 8px;border-bottom:1px solid rgba(250,243,231,0.14);margin-bottom:18px;}
  .brand .tag{display:inline-flex;align-items:center;justify-content:center;width:38px;height:38px;border-radius:10px;background:var(--gold);color:var(--teal-dark);font-family:'Fraunces',serif;font-weight:700;font-size:18px;margin-bottom:10px;}
  .brand h1{font-size:20px;margin:0;font-weight:600;letter-spacing:0.2px;}
  .brand p{margin:2px 0 0;font-size:12px;color:var(--gold-soft);letter-spacing:1.5px;text-transform:uppercase;}

  .nav-item{
    display:flex;align-items:center;gap:12px;
    padding:12px 14px;border-radius:10px;border:none;background:transparent;
    color:var(--sand);opacity:0.78;font-size:14.5px;font-weight:500;text-align:left;
    margin-bottom:4px;transition:all .18s ease;width:100%;
  }
  .nav-item:hover{opacity:1;background:rgba(250,243,231,0.08);}
  .nav-item.active{opacity:1;background:var(--teal-soft);box-shadow:inset 3px 0 0 var(--gold);}
  .nav-item .ic{width:20px;text-align:center;font-size:16px;}
  .sidebar-foot{margin-top:auto;padding:12px 8px 0;font-size:11px;color:rgba(250,243,231,0.45);border-top:1px solid rgba(250,243,231,0.14);}

  /* MAIN */
  .main{flex:1;padding:34px 42px;overflow-x:hidden;}
  .page-head{display:flex;justify-content:space-between;align-items:flex-end;margin-bottom:26px;flex-wrap:wrap;gap:14px;}
  .page-head h2{font-size:28px;margin:0 0 4px;color:var(--teal-dark);}
  .page-head .sub{color:var(--ink-soft);font-size:14px;margin:0;}
  .btn{
    border:none;border-radius:10px;padding:11px 20px;font-weight:600;font-size:14px;
    display:inline-flex;align-items:center;gap:8px;transition:transform .12s ease, box-shadow .12s ease;
  }
  .btn:active{transform:translateY(1px);}
  .btn:disabled{opacity:0.5;cursor:not-allowed;}
  .btn-primary{background:var(--gold);color:var(--teal-dark);box-shadow:0 4px 14px rgba(201,166,107,0.4);}
  .btn-primary:hover{box-shadow:0 6px 18px rgba(201,166,107,0.55);}
  .btn-outline{background:transparent;border:1.5px solid var(--teal-dark);color:var(--teal-dark);}
  .btn-outline:hover{background:var(--teal-dark);color:var(--sand);}
  .btn-danger{background:var(--clay);color:var(--white);}
  .btn-danger:hover{box-shadow:0 6px 16px rgba(193,80,46,0.4);}
  .btn-ghost{background:var(--sage-soft);color:var(--teal-dark);}
  .btn-sm{padding:7px 13px;font-size:12.5px;border-radius:8px;}

  /* CARDS / GRID */
  .grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:18px;}
  .card{background:var(--white);border-radius:var(--radius);box-shadow:var(--shadow);padding:20px;position:relative;overflow:hidden;border:1px solid rgba(14,59,54,0.06);}
  .room-card::before{content:'';position:absolute;left:0;top:0;bottom:0;width:6px;background:var(--gold);}
  .room-card.occupied::before{background:var(--clay);}
  .room-badge{
    position:absolute;top:16px;right:16px;width:44px;height:44px;border-radius:50%;
    background:var(--teal-dark);color:var(--gold-soft);display:flex;align-items:center;justify-content:center;
    font-family:'Fraunces',serif;font-weight:700;font-size:15px;
  }
  .status-pill{display:inline-flex;align-items:center;gap:6px;font-size:11.5px;font-weight:700;letter-spacing:0.4px;text-transform:uppercase;padding:4px 10px;border-radius:20px;}
  .status-pill.free{background:var(--sage-soft);color:#2F5C48;}
  .status-pill.busy{background:var(--clay-soft);color:var(--clay);}
  .card h3{margin:6px 0 2px;font-size:18px;color:var(--teal-dark);}
  .card .meta{color:var(--ink-soft);font-size:13px;margin:2px 0;}
  .card .price{font-family:'Fraunces',serif;font-weight:600;font-size:20px;color:var(--teal-dark);margin-top:10px;}
  .card .price span{font-size:12px;font-weight:400;color:var(--ink-soft);}
  .card-actions{display:flex;gap:8px;margin-top:14px;}

  .empty{
    border:1.5px dashed var(--gold-soft);border-radius:var(--radius);padding:44px 20px;text-align:center;color:var(--ink-soft);background:rgba(255,255,255,0.5);
  }
  .empty .big{font-size:32px;margin-bottom:8px;}
  .empty.error{border-color:var(--clay);background:var(--clay-soft);color:var(--ink);}

  /* TABLE / LIST */
  .list{display:flex;flex-direction:column;gap:12px;}
  .row-card{
    background:var(--white);border-radius:var(--radius);box-shadow:var(--shadow);padding:16px 20px;
    display:flex;align-items:center;gap:18px;flex-wrap:wrap;border:1px solid rgba(14,59,54,0.06);
  }
  .row-tag{
    font-family:'Fraunces',serif;background:var(--teal-dark);color:var(--gold-soft);
    border-radius:8px;padding:8px 12px;font-size:13px;font-weight:600;min-width:110px;text-align:center;
  }
  .row-info{flex:1;min-width:180px;}
  .row-info b{color:var(--teal-dark);}
  .row-info .dates{font-size:13px;color:var(--ink-soft);}
  .row-actions{display:flex;gap:8px;}

  /* MODAL */
  .overlay{position:fixed;inset:0;background:rgba(14,59,54,0.55);backdrop-filter:blur(2px);display:none;align-items:flex-start;justify-content:center;padding:40px 16px;z-index:50;overflow-y:auto;}
  .overlay.show{display:flex;}
  .modal{background:var(--sand);border-radius:18px;max-width:560px;width:100%;box-shadow:0 20px 60px rgba(0,0,0,0.3);animation:pop .18s ease;}
  @keyframes pop{from{opacity:0;transform:translateY(8px) scale(0.98);}to{opacity:1;transform:translateY(0) scale(1);}}
  .modal-head{padding:22px 26px 14px;border-bottom:1px solid var(--sand-deep);display:flex;justify-content:space-between;align-items:center;}
  .modal-head h3{margin:0;color:var(--teal-dark);font-size:20px;}
  .modal-close{background:none;border:none;font-size:20px;color:var(--ink-soft);}
  .modal-body{padding:20px 26px;max-height:70vh;overflow-y:auto;}
  .modal-foot{padding:16px 26px 22px;display:flex;justify-content:flex-end;gap:10px;border-top:1px solid var(--sand-deep);}

  .field{margin-bottom:16px;}
  .field label{display:block;font-size:12.5px;font-weight:600;color:var(--teal-dark);margin-bottom:6px;text-transform:uppercase;letter-spacing:0.3px;}
  .field input,.field select,.field textarea{
    width:100%;padding:10px 12px;border-radius:9px;border:1.5px solid var(--sand-deep);background:var(--white);
    font-size:14px;color:var(--ink);
  }
  .field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--gold);}
  .field-row{display:flex;gap:14px;}
  .field-row .field{flex:1;}
  .hint{font-size:12px;color:var(--ink-soft);margin-top:4px;}

  .companion-item{display:flex;gap:8px;align-items:center;margin-bottom:8px;background:var(--white);padding:8px;border-radius:9px;border:1px solid var(--sand-deep);}
  .companion-item input{flex:2;}
  .companion-item select{flex:1;}
  .companion-item .rm{background:var(--clay-soft);color:var(--clay);border:none;border-radius:7px;width:30px;height:30px;font-weight:700;flex-shrink:0;}

  .service-check{display:flex;align-items:center;justify-content:space-between;padding:10px 12px;background:var(--white);border:1.5px solid var(--sand-deep);border-radius:9px;margin-bottom:8px;cursor:pointer;}
  .service-check.checked{border-color:var(--gold);background:var(--gold-soft);}
  .service-check .lft{display:flex;align-items:center;gap:10px;}
  .service-check .p{font-family:'Fraunces',serif;font-weight:600;color:var(--teal-dark);}

  .total-box{background:var(--teal-dark);color:var(--sand);border-radius:12px;padding:18px 20px;margin-top:6px;}
  .total-box .line{display:flex;justify-content:space-between;font-size:13.5px;color:var(--gold-soft);margin-bottom:4px;}
  .total-box .grand{display:flex;justify-content:space-between;align-items:center;font-family:'Fraunces',serif;font-size:24px;font-weight:700;margin-top:8px;padding-top:8px;border-top:1px solid rgba(250,243,231,0.2);}

  .detail-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px 20px;margin-bottom:14px;}
  .detail-grid .k{font-size:11.5px;text-transform:uppercase;letter-spacing:0.4px;color:var(--ink-soft);font-weight:600;}
  .detail-grid .v{font-size:14.5px;color:var(--ink);margin-top:2px;}
  .tag-list{display:flex;flex-wrap:wrap;gap:6px;}
  .tag-chip{background:var(--sage-soft);color:#2F5C48;font-size:12px;padding:4px 10px;border-radius:20px;font-weight:600;}

  .confirm-icon{width:52px;height:52px;border-radius:50%;background:var(--clay-soft);color:var(--clay);display:flex;align-items:center;justify-content:center;font-size:24px;margin:0 auto 14px;}

  .toast{position:fixed;bottom:24px;right:24px;background:var(--teal-dark);color:var(--sand);padding:14px 20px;border-radius:10px;box-shadow:var(--shadow);z-index:80;font-size:14px;font-weight:500;display:flex;align-items:center;gap:10px;animation:slideIn .2s ease;max-width:360px;}
  .toast.err{background:var(--clay);}
  @keyframes slideIn{from{opacity:0;transform:translateY(10px);}to{opacity:1;transform:translateY(0);}}

  /* LOGIN */
  .login-wrap{min-height:100vh;display:flex;align-items:center;justify-content:center;background:var(--teal-dark);padding:20px;
    background-image: radial-gradient(circle at 20% 20%, rgba(201,166,107,0.10), transparent 45%), radial-gradient(circle at 80% 80%, rgba(127,168,149,0.12), transparent 45%);}
  .login-card{background:var(--sand);border-radius:20px;box-shadow:0 24px 60px rgba(0,0,0,0.35);width:100%;max-width:400px;padding:38px 34px;}
  .login-brand{text-align:center;margin-bottom:26px;}
  .login-brand .tag{display:inline-flex;align-items:center;justify-content:center;width:52px;height:52px;border-radius:14px;background:var(--gold);color:var(--teal-dark);font-family:'Fraunces',serif;font-weight:700;font-size:24px;margin-bottom:12px;}
  .login-brand h1{margin:0;font-size:22px;color:var(--teal-dark);}
  .login-brand p{margin:4px 0 0;font-size:12.5px;color:var(--ink-soft);letter-spacing:1.2px;text-transform:uppercase;}
  .login-error{background:var(--clay-soft);color:var(--clay);border-radius:9px;padding:10px 14px;font-size:13px;font-weight:600;margin-bottom:14px;display:none;}
  .login-error.show{display:block;}
  .login-submit{width:100%;justify-content:center;margin-top:6px;padding:12px;font-size:15px;}
  .login-foot{text-align:center;margin-top:18px;font-size:12px;color:var(--ink-soft);}
  .sidebar-user{display:flex;align-items:center;justify-content:space-between;gap:8px;padding:10px 8px 0;}
  .sidebar-user .who{font-size:12px;color:var(--gold-soft);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
  .sidebar-user button{background:transparent;border:1px solid rgba(250,243,231,0.3);color:var(--sand);border-radius:7px;padding:5px 9px;font-size:11.5px;font-weight:600;}
  .sidebar-user button:hover{background:rgba(250,243,231,0.12);}

  @media(max-width:820px){
    .app{flex-direction:column;}
    .sidebar{width:100%;height:auto;position:relative;flex-direction:row;flex-wrap:wrap;padding:16px;}
    .brand{display:none;}
    .nav-item{width:auto;flex:1;justify-content:center;font-size:12.5px;padding:10px 8px;}
    .nav-item .ic{display:none;}
    .main{padding:20px;}
    .field-row{flex-direction:column;gap:0;}
  }