:root{
  --bg:#f3f6fb;
  --card:#ffffff;
  --card-border:#e5e7eb;
  --text:#0f172a;
  --muted:#64748b;
  --primary:#0f172a;
  --primary-2:#1e293b;
  --accent:#2563eb;
  --success:#16a34a;
  --danger:#dc2626;
  --warning:#d97706;
  --shadow:0 18px 45px rgba(15, 23, 42, 0.08);
  --radius:18px;
}

*{box-sizing:border-box}

html,body{
  margin:0;
  padding:0;
  font-family:Inter, Arial, Helvetica, sans-serif;
  background:
    radial-gradient(circle at top left, rgba(37,99,235,0.08), transparent 30%),
    radial-gradient(circle at top right, rgba(15,23,42,0.06), transparent 25%),
    var(--bg);
  color:var(--text);
}

a{
  color:var(--accent);
  text-decoration:none;
}

a:hover{
  text-decoration:underline;
}

.container{
  max-width:1280px;
  margin:0 auto;
  padding:28px;
}

.page-header{
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:16px;
  margin-bottom:24px;
}

.page-title{
  margin:0;
  font-size:32px;
  line-height:1.1;
  font-weight:800;
  letter-spacing:-0.02em;
}

.page-subtitle{
  margin:8px 0 0 0;
  color:var(--muted);
  font-size:15px;
}

.card{
  background:rgba(255,255,255,0.88);
  backdrop-filter:blur(8px);
  border:1px solid rgba(255,255,255,0.7);
  box-shadow:var(--shadow);
  border-radius:var(--radius);
  padding:24px;
}

.card + .card{
  
}

.toolbar{
  display:flex;
  gap:12px;
  flex-wrap:wrap;
  align-items:center;
}

.btn{
  appearance:none;
  border:none;
  border-radius:12px;
  padding:12px 16px;
  font-weight:700;
  font-size:14px;
  cursor:pointer;
  transition:all .18s ease;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  text-decoration:none !important;
}

.btn:hover{
  transform:translateY(-1px);
  box-shadow:0 10px 24px rgba(15, 23, 42, 0.10);
}

.btn-primary{
  background:linear-gradient(135deg, var(--primary), var(--primary-2));
  color:#fff;
}

.btn-secondary{
  background:#fff;
  color:var(--text);
  border:1px solid var(--card-border);
}

.btn-success{
  background:linear-gradient(135deg, #15803d, #16a34a);
  color:#fff;
}

.btn-danger{
  background:linear-gradient(135deg, #b91c1c, #dc2626);
  color:#fff;
}

.badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:7px 12px;
  border-radius:999px;
  font-size:12px;
  font-weight:700;
  background:#e2e8f0;
  color:#334155;
}

.badge-admin{
  background:#dbeafe;
  color:#1d4ed8;
}

.badge-user{
  background:#ecfeff;
  color:#0f766e;
}

.badge-success{
  background:#dcfce7;
  color:#166534;
}

.badge-danger{
  background:#fee2e2;
  color:#991b1b;
}

.topbar{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  margin-bottom:28px;
  padding:16px 20px;
  border-radius:20px;
  background:rgba(255,255,255,0.72);
  border:1px solid rgba(255,255,255,0.75);
  backdrop-filter:blur(10px);
  box-shadow:var(--shadow);
}

.brand{
  display:flex;
  align-items:center;
  gap:14px;
}

.brand img{
  height:48px;
  width:auto;
  display:block;
}

.brand-title{
  font-size:18px;
  font-weight:800;
  margin:0;
}

.brand-subtitle{
  margin:2px 0 0 0;
  color:var(--muted);
  font-size:13px;
}

.userbox{
  display:flex;
  align-items:center;
  gap:12px;
  flex-wrap:wrap;
}

.user-pill{
  display:flex;
  align-items:center;
  gap:10px;
  background:#fff;
  border:1px solid var(--card-border);
  padding:10px 14px;
  border-radius:999px;
}

.user-avatar{
  width:34px;
  height:34px;
  border-radius:50%;
  display:flex;
  align-items:center;
  justify-content:center;
  color:#fff;
  font-weight:800;
  background:linear-gradient(135deg, #1d4ed8, #0f172a);
}

.user-meta strong{
  display:block;
  font-size:13px;
}

.user-meta span{
  display:block;
  color:var(--muted);
  font-size:12px;
}

.table-wrap{
  overflow:auto;
  border-radius:16px;
  border:1px solid var(--card-border);
  background:#fff;
}

table{
  width:100%;
  border-collapse:collapse;
  min-width:860px;
}

thead th{
  position:sticky;
  top:0;
  z-index:1;
  background:#f8fafc;
  color:#334155;
  font-size:12px;
  text-transform:uppercase;
  letter-spacing:.04em;
  text-align:left;
  padding:14px 16px;
  border-bottom:1px solid var(--card-border);
}

tbody td{
  padding:15px 16px;
  border-bottom:1px solid #eef2f7;
  vertical-align:middle;
}

tbody tr:hover{
  background:#f8fbff;
}

.form-grid{
  display:grid;
  grid-template-columns:repeat(2, minmax(0, 1fr));
  gap:18px;
}

.form-group{
  display:flex;
  flex-direction:column;
  gap:8px;
}

.form-group.full{
  grid-column:1 / -1;
}

label{
  font-size:14px;
  font-weight:700;
}

input[type="text"],
input[type="email"],
input[type="password"],
select,
textarea{
  width:100%;
  border:1px solid #dbe2ea;
  background:#fff;
  border-radius:14px;
  padding:13px 14px;
  font-size:15px;
  outline:none;
  transition:border-color .18s ease, box-shadow .18s ease;
}

input:focus,
select:focus,
textarea:focus{
  border-color:#93c5fd;
  box-shadow:0 0 0 4px rgba(59,130,246,0.12);
}

.checkbox-list{
  display:grid;
  grid-template-columns:repeat(2, minmax(0, 1fr));
  gap:12px;
}

.checkbox-card{
  border:1px solid var(--card-border);
  border-radius:14px;
  padding:14px;
  background:#fff;
}

.checkbox-card label{
  display:flex;
  align-items:flex-start;
  gap:10px;
  font-weight:600;
  cursor:pointer;
}

.checkbox-card small{
  display:block;
  color:var(--muted);
  margin-top:4px;
  font-weight:500;
}

.form-actions{
  display:flex;
  gap:12px;
  flex-wrap:wrap;
  margin-top:22px;
}

.login-shell{
  min-height:100vh;
  display:grid;
  grid-template-columns:1.05fr .95fr;
}

.login-left{
  padding:54px;
  display:flex;
  flex-direction:column;
  justify-content:space-between;
  background:
    linear-gradient(145deg, rgba(15,23,42,0.94), rgba(30,41,59,0.95)),
    radial-gradient(circle at top right, rgba(37,99,235,.35), transparent 35%);
  color:#fff;
}

.login-brand img{
  height:60px;
  width:auto;
  display:block;
  margin-bottom:18px;
}

.login-brand h1{
  margin:0 0 10px 0;
  font-size:38px;
  line-height:1.05;
  letter-spacing:-0.03em;
}

.login-brand p{
  margin:0;
  font-size:16px;
  color:rgba(255,255,255,0.78);
  max-width:560px;
}

.login-features{
  display:grid;
  gap:14px;
  max-width:560px;
}

.feature-item{
  background:rgba(255,255,255,0.08);
  border:1px solid rgba(255,255,255,0.12);
  border-radius:16px;
  padding:16px 18px;
}

.feature-item strong{
  display:block;
  margin-bottom:4px;
  font-size:15px;
}

.feature-item span{
  color:rgba(255,255,255,0.72);
  font-size:14px;
}

.login-right{
  display:flex;
  align-items:center;
  justify-content:center;
  padding:40px;
}

.login-card{
  width:100%;
  max-width:460px;
  background:rgba(255,255,255,0.88);
  border:1px solid rgba(255,255,255,0.9);
  backdrop-filter:blur(10px);
  box-shadow:0 24px 60px rgba(15,23,42,0.12);
  border-radius:24px;
  padding:34px;
}

.login-card h2{
  margin:0 0 8px 0;
  font-size:28px;
  letter-spacing:-0.02em;
}

.login-card p{
  margin:0 0 24px 0;
  color:var(--muted);
}

.alert{
  padding:12px 14px;
  border-radius:12px;
  font-size:14px;
  font-weight:600;
  margin-bottom:16px;
}

.alert-danger{
  background:#fee2e2;
  color:#991b1b;
  border:1px solid #fecaca;
}

.kicker{
  display:inline-flex;
  align-items:center;
  gap:8px;
  background:#eff6ff;
  color:#1d4ed8;
  border-radius:999px;
  padding:8px 12px;
  font-size:12px;
  font-weight:800;
  text-transform:uppercase;
  letter-spacing:.06em;
  margin-bottom:14px;
}

.stats-mini{
  display:grid;
  grid-template-columns:repeat(3, minmax(0, 1fr));
  gap:14px;
}

.stat-mini{
  background:#fff;
  border:1px solid var(--card-border);
  border-radius:16px;
  padding:16px;
}

.stat-mini span{
  display:block;
  color:var(--muted);
  font-size:13px;
  margin-bottom:4px;
}

.stat-mini strong{
  font-size:24px;
  letter-spacing:-0.02em;
}

/* ===== ROI ===== */
#roi {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 16px;
    margin-top: 22px;
    margin-bottom: 22px;
}

.kpi-box.kpi-roi {
    background: #ffffff;
    color: #111827;
    border: 1px solid #e5e7eb;
    box-shadow: 0 10px 24px rgba(15, 23, 42, 0.06);
}

.kpi-box.kpi-roi .kpi-label-premium {
    color: #6b7280;
}

.kpi-box.kpi-roi .kpi-value {
    color: #111827;
}

.kpi-box.kpi-roi .kpi-sub {
    color: #9ca3af;
}

.heatmap-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 12px;
}

.heatmap-cell {
  padding: 14px;
  border-radius: 12px;
  color: white;
  font-size: 13px;
}

.heatmap-cell.low {
  background: #374151;
}

.heatmap-cell.medium {
  background: #f59e0b;
}

.heatmap-cell.high {
  background: #10b981;
}

.heat-hour {
  font-weight: bold;
  font-size: 16px;
}

.heat-ca {
  font-size: 18px;
  margin-top: 6px;
}

.heat-meta {
  font-size: 11px;
  opacity: 0.9;
}

@media (max-width: 1200px) {
    #roi {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 700px) {
    #roi {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 980px){
  .login-shell{
    grid-template-columns:1fr;
  }

  .login-left{
    min-height:auto;
    gap:28px;
  }

  .form-grid,
  .checkbox-list{
    grid-template-columns:1fr;
  }

  .stats-mini{
    grid-template-columns:1fr;
  }

  .topbar,
  .page-header{
    flex-direction:column;
    align-items:flex-start;
  }
}