:root{
  --card-radius: 18px;
  --shadow: 0 14px 34px rgba(16, 24, 40, .08);
  --shadow-hover: 0 18px 45px rgba(16, 24, 40, .12);
  --border: 1px solid rgba(16, 24, 40, .08);

  --accent-1: #6d5efc; /* violet */
  --accent-2: #20c997; /* teal */
  --accent-3: #ff7a59; /* coral */
  --accent-4: #0dcaf0; /* cyan */
}

/* page */
body{
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", "Apple Color Emoji", "Segoe UI Emoji";
  background:
    radial-gradient(1200px 500px at 20% 0%, rgba(109, 94, 252, .14), transparent 60%),
    radial-gradient(900px 420px at 80% 10%, rgba(32, 201, 151, .12), transparent 55%),
    linear-gradient(180deg, #f7f8ff 0%, #f6fbff 40%, #f7fffb 100%);
}

/* navbar */
.navbar.bg-dark{
  background: linear-gradient(135deg, rgba(109, 94, 252, 1), rgba(13, 110, 253, 1)) !important;
}
.navbar .nav-link{
  opacity: .95;
  transition: opacity .15s ease, transform .15s ease;
}
.navbar .nav-link:hover{
  opacity: 1;
  transform: translateY(-1px);
}
.navbar .navbar-brand{
  letter-spacing: .2px;
}

/* cards */
.card{
  border-radius: var(--card-radius);
  border: var(--border);
  box-shadow: var(--shadow);
}
.card.kpi{
  transition: transform .15s ease, box-shadow .15s ease;
}
.card.kpi:hover{
  transform: translateY(-2px);
  box-shadow: var(--shadow-hover);
}

.kpi{
  min-height: 112px;
}
.kpi .icon{
  width: 48px; height: 48px;
  display:flex; align-items:center; justify-content:center;
  border-radius: 16px;
  background: rgba(255,255,255,.16);
  backdrop-filter: blur(6px);
}

/* KPI variants */
.kpi.bg-dark{
  background: linear-gradient(135deg, var(--accent-1), #0d6efd) !important;
}
.kpi .icon.bg-success{ background: linear-gradient(135deg, #20c997, #198754) !important; }
.kpi .icon.bg-primary{ background: linear-gradient(135deg, #6d5efc, #0d6efd) !important; }
.kpi .icon.bg-info{ background: linear-gradient(135deg, #0dcaf0, #0d6efd) !important; }
.kpi .icon.bg-warning{ background: linear-gradient(135deg, #ffc107, #ff7a59) !important; }
.kpi .icon.bg-danger{ background: linear-gradient(135deg, #ff4d6d, #dc3545) !important; }

/* badges */
.badge-soft{
  background: rgba(109, 94, 252, .14);
  color: #3b2ff8;
  border: 1px solid rgba(109, 94, 252, .18);
}
.navbar .badge-soft{
  background: rgba(255,255,255,.16);
  color: #fff;
  border: 1px solid rgba(255,255,255,.22);
}

/* tables */
.table thead th{
  position: sticky;
  top: 0;
  background: rgba(255,255,255,.92);
  backdrop-filter: blur(8px);
  z-index: 2;
  border-bottom: 1px solid rgba(16, 24, 40, .08);
}

/* buttons */
.btn-dark{
  border: none;
  background: linear-gradient(135deg, var(--accent-1), #0d6efd);
  box-shadow: 0 10px 24px rgba(13, 110, 253, .18);
}
.btn-dark:hover{
  filter: brightness(1.02);
}
.btn-outline-dark{
  border-color: rgba(16, 24, 40, .18);
}
.btn-outline-dark:hover{
  background: rgba(109, 94, 252, .10);
  border-color: rgba(109, 94, 252, .28);
  color: #1c1c1c;
}

/* inputs */
.form-control:focus, .form-select:focus{
  border-color: rgba(109, 94, 252, .45);
  box-shadow: 0 0 0 .25rem rgba(109, 94, 252, .16);
}

/* payroll sheet */
.sheet-table{
  font-size: 0.9rem;
}
.sheet-table input{
  min-width: 90px;
}

/* brand dot */
.brand-dot{
  width:10px;height:10px;border-radius:999px;
  background: linear-gradient(135deg, var(--accent-3), var(--accent-2));
  display:inline-block;
  box-shadow: 0 0 0 4px rgba(255, 122, 89, .14);
}