/* Tech Dark Glass Theme */
:root{
  --bg:#0b0f1a; --surface:#111727cc; --surface-solid:#111727; --text:#e6eefb; --muted:#9fb2d0; --border:#1f2a3f; --brand:#ff7a00; --accent:#ff7a00; --accent-2:#ffb74d; --danger:#ff5470; --success:#2bdc8b;
  --radius:14px; --radius-sm:10px; --shadow:0 10px 30px rgba(0,0,0,.35), inset 0 1px 0 rgba(255,255,255,.04);
}
*{box-sizing:border-box}
html,body{height:100%}
body{margin:0; font-family: 'Segoe UI', Roboto, Helvetica, Arial, sans-serif; color:var(--text); background:
  radial-gradient(1200px 600px at 10% -20%, #162245 0%, transparent 60%),
  radial-gradient(800px 400px at 100% 0%, #1a1440 0%, transparent 55%),
  linear-gradient(180deg, #0b0f1a 0%, #0b0f1a 100%);
  background-attachment: fixed;
}

/* Topbar */
.topbar{position:sticky; top:0; z-index:10; display:flex; align-items:center; justify-content:space-between; padding:14px 24px; backdrop-filter:saturate(160%) blur(10px); background:var(--surface); border-bottom:1px solid var(--border)}
.brand{font-weight:700; letter-spacing:.5px; background:linear-gradient(90deg,var(--accent),var(--accent-2)); -webkit-background-clip:text; background-clip:text; color:transparent}
.nav a{color:var(--text); text-decoration:none; margin-left:16px; padding:8px 12px; border-radius:10px; transition:all .18s ease; border:1px solid transparent}
.nav a:hover{border-color:var(--accent); box-shadow:0 0 20px rgba(255,122,0,.35); color:var(--accent)}
.nav .logout{color:#ffb4c0}

/* Container */
.container{max-width:1100px; margin:26px auto; padding:0 20px}

/* Dashboard */
.dashboard{display:block}
.dashboard-header{display:flex; align-items:center; justify-content:space-between; margin-bottom:14px}
.dashboard-header h1{margin:0; font-size:20px; letter-spacing:.5px}
.kpi-cards{margin-top:8px}

/* Cards */
.cards{display:grid; grid-template-columns:repeat(auto-fit,minmax(260px,1fr)); gap:18px}
.card{background:var(--surface); border:1px solid var(--border); border-radius:var(--radius); box-shadow:var(--shadow); padding:18px}
.card-title{font-size:14px; color:var(--muted); margin-bottom:8px}
.card-value{font-size:28px; font-weight:700}
.card-desc{font-size:12px; color:var(--muted)}

/* Buttons */
.btn{display:inline-block; padding:10px 14px; border-radius:12px; border:1px solid var(--border); color:var(--text); text-decoration:none; background:linear-gradient(180deg, #152136, #101626); box-shadow:var(--shadow); transition:all .2s ease}
.btn:hover{transform:translateY(-1px); border-color:var(--accent); box-shadow:0 8px 24px rgba(255,122,0,.25)}
.btn-primary{background:linear-gradient(180deg, #ff8f00, #e66000); border-color:var(--brand)}
.btn-danger{background:linear-gradient(180deg, #ff5470, #d9415a); border-color:#ff5470}
.btn-small{padding:6px 10px; border-radius:10px; font-size:12px}

/* Toolbar */
.toolbar{margin:16px 0; display:flex; gap:10px}

/* Tables */
.table{width:100%; border-collapse:separate; border-spacing:0; background:var(--surface); border:1px solid var(--border); border-radius:var(--radius); overflow:hidden; box-shadow:var(--shadow)}
.table thead th{position:sticky; top:0; background:linear-gradient(180deg,#121b2a,#0f1522); color:var(--muted); text-align:left; padding:10px 16px; font-weight:600; border-bottom:1px solid var(--border)}
.table tbody td{padding:10px 16px; border-bottom:1px solid var(--border)}
.table tbody tr:nth-child(odd){background-color:#101626}
.table tbody tr:hover{background-color:#132038}
/* Column tuning for orders */
.table .col-orderNo{min-width:150px; white-space:nowrap}
.table .col-store{min-width:120px}
.table .col-product{min-width:140px}
.table .col-spec{min-width:100px; color:var(--muted)}
.table .col-unitPrice,.table .col-quantity,.table .col-totalAmount{min-width:90px; text-align:right}
.table .col-reservedAt{min-width:260px; white-space:nowrap}

/* Forms */
label{display:inline-block; margin:6px 10px 6px 0; color:var(--muted)}
input,select{background:#0f1522; border:1px solid var(--border); color:var(--text); padding:8px 10px; border-radius:10px; outline:none; transition:border .2s ease}
input:focus,select:focus{border-color:var(--accent)}

/* Alerts */
.alert{padding:10px 12px; border-radius:12px; border:1px solid var(--border); margin-bottom:10px}
.alert.error{border-color:var(--danger); color:#ffcdd2; background:linear-gradient(180deg,#2a0f15,#180b0e)}
.alert.success{border-color:var(--success); color:#c6ffe6; background:linear-gradient(180deg,#0f2a1f,#0b1a14)}

/* Login */
.login-page{display:flex; align-items:center; justify-content:center; min-height:100vh; background:
  radial-gradient(800px 400px at 10% 90%, #142a46 0%, transparent 60%),
  var(--bg); position:relative; overflow:hidden}
.login-card{width:360px; padding:24px; border-radius:16px; background:var(--surface); border:1px solid var(--border); box-shadow:var(--shadow)}
.login-card h1{margin:0 0 12px; font-size:22px}
.login-card .error{margin-bottom:10px; color:#ffb4c0}
.login-card form{display:flex; flex-direction:column; gap:10px}
.login-card input{width:100%}
.login-card button{cursor:pointer}

/* Footer */
.footer{opacity:.6; text-align:center; padding:16px}
/* Login logo overlay */
.login-logo-bg{position:absolute; inset:0; pointer-events:none; opacity:.12; mix-blend-mode:multiply; background:
  url('/logo.png') center 30%/520px no-repeat;
  filter:saturate(1.05) contrast(1.05)}

/* Responsive: mobile adaptations */
@media (max-width: 900px){
  .nav{display:flex; flex-wrap:wrap; gap:8px}
  .nav a{margin-left:0}
  .toolbar{flex-wrap:wrap}
  .container{max-width:100%; margin:16px auto; padding:0 12px}
}
@media (max-width: 768px){
  .topbar{padding:10px 12px}
  .brand{font-size:14px}
  .dashboard-header{flex-direction:column; align-items:flex-start; gap:8px}
  .filters{display:flex; flex-wrap:wrap; gap:8px}
  .filters label{width:calc(50% - 8px); margin:6px 0}
  .filters .btn{width:100%}
  .toolbar .btn{width:100%}
  /* Make wide tables scrollable horizontally */
  .table{display:block; overflow-x:auto; -webkit-overflow-scrolling:touch}
  .table thead th{position:sticky; top:0}
  .table .col-orderNo{min-width:140px}
  .table .col-store{min-width:120px}
  .table .col-product{min-width:140px}
  .table .col-spec{min-width:100px}
  .table .col-unitPrice,.table .col-quantity,.table .col-totalAmount{min-width:90px}
  .table .col-reservedAt{min-width:200px}
}
@media (max-width: 420px){
  .login-card{width:100%; max-width:420px; margin:0 12px}
  .nav{gap:6px}
  .btn{width:100%}
}