:root {
  --kb-bg:       #1e1e2e;
  --kb-bg-deep:  #16161f;
  --kb-panel:    #2a2a3e;
  --kb-card:     #313150;
  --kb-card-hover:#3a3a5f;
  --kb-accent:   #7c6af7;
  --kb-accent-h: #9183fa;
  --kb-accent2:  #5a9cf8;
  --kb-danger:   #e05c6a;
  --kb-success:  #4caf50;
  --kb-warning:  #f0a500;
  --kb-text:     #e8e8f0;
  --kb-subtext:  #9090b0;
  --kb-border:   #3a3a5a;
  --kb-shadow:   0 6px 20px rgba(0, 0, 0, 0.35);
  --kb-radius:   10px;
  --kb-radius-sm:6px;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--kb-bg);
  color: var(--kb-text);
  font-family: "Segoe UI", system-ui, -apple-system, sans-serif;
  font-size: 14px;
  min-height: 100vh;
}

a { color: var(--kb-accent2); text-decoration: none; }
a:hover { color: var(--kb-accent-h); }

::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: var(--kb-bg-deep); }
::-webkit-scrollbar-thumb { background: var(--kb-card); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--kb-card-hover); }

/* Bootstrap overrides */
.bg-kebcio { background: var(--kb-panel) !important; }
.text-muted-kb { color: var(--kb-subtext) !important; }

.btn-kebcio {
  background: var(--kb-accent);
  border: 1px solid var(--kb-accent);
  color: #fff;
  border-radius: var(--kb-radius-sm);
  padding: 0.5rem 1.2rem;
  font-weight: 600;
  transition: background 0.15s, transform 0.05s;
}
.btn-kebcio:hover { background: var(--kb-accent-h); color: #fff; }
.btn-kebcio:active { transform: translateY(1px); }
.btn-kebcio:disabled { opacity: 0.6; cursor: not-allowed; }

.btn-kebcio-outline {
  background: transparent;
  border: 1px solid var(--kb-border);
  color: var(--kb-text);
  border-radius: var(--kb-radius-sm);
  padding: 0.5rem 1.2rem;
}
.btn-kebcio-outline:hover { background: var(--kb-card); }

.form-control-kb, input.form-control, select.form-select, textarea.form-control {
  background: var(--kb-bg-deep);
  border: 1px solid var(--kb-border);
  color: var(--kb-text);
  border-radius: var(--kb-radius-sm);
}
.form-control-kb:focus, input.form-control:focus, select.form-select:focus {
  background: var(--kb-bg-deep);
  color: var(--kb-text);
  border-color: var(--kb-accent);
  box-shadow: 0 0 0 3px rgba(124, 106, 247, 0.15);
}

.kb-card {
  background: var(--kb-panel);
  border: 1px solid var(--kb-border);
  border-radius: var(--kb-radius);
  box-shadow: var(--kb-shadow);
}

/* ============================================================
   Auth screens (login + brand-select)
   ============================================================ */

.auth-wrap {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  background:
    radial-gradient(circle at 20% 10%, rgba(124, 106, 247, 0.15), transparent 40%),
    radial-gradient(circle at 80% 90%, rgba(90, 156, 248, 0.12), transparent 40%),
    var(--kb-bg);
}

.auth-card {
  width: 100%;
  max-width: 420px;
  background: var(--kb-panel);
  border: 1px solid var(--kb-border);
  border-radius: var(--kb-radius);
  padding: 36px 32px;
  box-shadow: var(--kb-shadow);
}

.auth-logo {
  text-align: center;
  margin-bottom: 24px;
}
.auth-logo img { max-width: 96px; height: auto; }
.auth-logo h1 {
  margin: 14px 0 4px;
  font-size: 22px;
  font-weight: 700;
}
.auth-logo p { color: var(--kb-subtext); margin: 0; font-size: 13px; }

.auth-card label { font-size: 13px; color: var(--kb-subtext); margin-bottom: 6px; display: block; }
.auth-card .form-group { margin-bottom: 16px; }
.auth-card .btn-kebcio { width: 100%; padding: 0.7rem 1rem; font-size: 15px; }

.auth-alert {
  background: rgba(224, 92, 106, 0.15);
  border: 1px solid var(--kb-danger);
  color: var(--kb-danger);
  border-radius: var(--kb-radius-sm);
  padding: 10px 14px;
  margin-bottom: 16px;
  font-size: 13px;
}
.auth-alert.info {
  background: rgba(90, 156, 248, 0.12);
  border-color: var(--kb-accent2);
  color: var(--kb-accent2);
}

.input-group-kb {
  position: relative;
}
.input-group-kb i.icon {
  position: absolute;
  left: 12px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--kb-subtext);
  font-size: 14px;
  pointer-events: none;
}
.input-group-kb input.form-control {
  padding-left: 36px;
}

/* Brand select grid */
.brand-wrap {
  min-height: 100vh;
  padding: 48px 24px;
  background:
    radial-gradient(circle at 30% 0%, rgba(124, 106, 247, 0.12), transparent 50%),
    var(--kb-bg);
}
.brand-header { text-align: center; max-width: 720px; margin: 0 auto 36px; }
.brand-header h1 { font-size: 28px; margin: 0 0 8px; }
.brand-header p  { color: var(--kb-subtext); margin: 0; }
.brand-header .user-pill {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--kb-panel); border: 1px solid var(--kb-border);
  padding: 6px 14px; border-radius: 999px; margin-top: 14px; font-size: 13px;
}

.brand-grid {
  max-width: 1100px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 18px;
}

.brand-tile {
  background: var(--kb-panel);
  border: 1px solid var(--kb-border);
  border-radius: var(--kb-radius);
  padding: 24px 18px;
  text-align: center;
  cursor: pointer;
  transition: transform 0.12s, border-color 0.12s, background 0.12s;
  display: flex; flex-direction: column; align-items: center; gap: 10px;
  color: var(--kb-text);
}
.brand-tile:hover {
  border-color: var(--kb-accent);
  background: var(--kb-card);
  transform: translateY(-2px);
  color: var(--kb-text);
}
.brand-tile .logo {
  width: 72px; height: 72px; display: flex; align-items: center; justify-content: center;
  border-radius: 50%; background: var(--kb-bg-deep);
  border: 2px solid var(--kb-border);
}
.brand-tile .logo img { max-width: 56px; max-height: 56px; }
.brand-tile .logo .fallback { font-weight: 700; font-size: 22px; color: var(--kb-accent); }
.brand-tile .name { font-weight: 600; font-size: 15px; margin-top: 4px; }
.brand-tile .code { color: var(--kb-subtext); font-size: 12px; }

.brand-footer { text-align: center; margin-top: 32px; }
.brand-footer a { color: var(--kb-subtext); font-size: 13px; }
.brand-footer a:hover { color: var(--kb-text); }

/* ============================================================
   App layout (sidebar + topbar)
   ============================================================ */

.app { display: flex; min-height: 100vh; }
.sidebar {
  width: 240px;
  background: var(--kb-bg-deep);
  border-right: 1px solid var(--kb-border);
  padding: 20px 14px;
  position: sticky; top: 0; height: 100vh; overflow-y: auto;
  flex-shrink: 0;
}
.sidebar .brand-mark {
  display: flex; align-items: center; gap: 10px;
  margin-bottom: 20px; padding-bottom: 16px;
  border-bottom: 1px solid var(--kb-border);
}
.sidebar .brand-mark img { width: 36px; height: 36px; }
.sidebar .brand-mark .title { font-weight: 700; font-size: 16px; }
.sidebar .menu { list-style: none; padding: 0; margin: 0; }
.sidebar .menu li { margin: 2px 0; }
.sidebar .menu a {
  display: flex; align-items: center; gap: 10px;
  padding: 9px 12px;
  color: var(--kb-text);
  border-radius: var(--kb-radius-sm);
  font-size: 14px;
}
.sidebar .menu a:hover { background: var(--kb-panel); }
.sidebar .menu a.active { background: var(--kb-accent); color: #fff; }
.sidebar .menu .group-label {
  font-size: 11px; text-transform: uppercase; letter-spacing: 0.5px;
  color: var(--kb-subtext); padding: 14px 12px 6px;
}

.main { flex: 1; min-width: 0; display: flex; flex-direction: column; }
.topbar {
  display: flex; align-items: center; justify-content: space-between;
  background: var(--kb-panel); border-bottom: 1px solid var(--kb-border);
  padding: 12px 24px;
}
.topbar .brand-info { display: flex; align-items: center; gap: 12px; }
.topbar .brand-info img { width: 28px; height: 28px; border-radius: 50%; background: var(--kb-bg-deep); padding: 2px; }
.topbar .actions { display: flex; align-items: center; gap: 8px; }
.topbar .user-name { font-weight: 600; }

.content { padding: 24px; flex: 1; }
.footer-app {
  padding: 12px 24px; border-top: 1px solid var(--kb-border);
  color: var(--kb-subtext); font-size: 12px;
  display: flex; justify-content: space-between;
}

@media (max-width: 720px) {
  .sidebar { position: fixed; transform: translateX(-100%); transition: transform 0.2s; z-index: 100; }
  .sidebar.open { transform: translateX(0); }
}

/* ============================================================
   Flash messages
   ============================================================ */
.kb-flash {
  padding: 12px 16px;
  border-radius: var(--kb-radius-sm);
  margin-bottom: 16px;
  border: 1px solid var(--kb-border);
  background: var(--kb-panel);
  display: flex; align-items: center; gap: 10px;
}
.kb-flash-success { border-color: var(--kb-success); background: rgba(76, 175, 80, 0.12); color: #b3e3b6; }
.kb-flash-danger  { border-color: var(--kb-danger);  background: rgba(224, 92, 106, 0.12); color: #f4b8be; }
.kb-flash-info    { border-color: var(--kb-accent2); background: rgba(90, 156, 248, 0.12); color: #b8d4f8; }
.kb-flash-warning { border-color: var(--kb-warning); background: rgba(240, 165, 0, 0.12); color: #f5d399; }

/* ============================================================
   Page header
   ============================================================ */
.kb-page-head {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 20px;
}
.kb-page-head h2 { margin: 0; font-size: 22px; font-weight: 700; }
.kb-page-head .subtitle { color: var(--kb-subtext); font-size: 13px; }

/* ============================================================
   DataTables overrides (dark theme)
   ============================================================ */
.dataTables_wrapper { color: var(--kb-text); }
.dataTables_wrapper .dataTables_length select,
.dataTables_wrapper .dataTables_filter input {
  background: var(--kb-bg-deep); border: 1px solid var(--kb-border);
  color: var(--kb-text); border-radius: var(--kb-radius-sm); padding: 4px 8px;
}
.dataTables_wrapper .dataTables_paginate .paginate_button {
  color: var(--kb-text) !important;
}
.dataTables_wrapper .dataTables_paginate .paginate_button.current,
.dataTables_wrapper .dataTables_paginate .paginate_button.current:hover {
  background: var(--kb-accent) !important;
  border-color: var(--kb-accent) !important;
  color: #fff !important;
}
.dataTables_wrapper .dataTables_paginate .paginate_button:hover {
  background: var(--kb-card) !important;
  border-color: var(--kb-border) !important;
  color: var(--kb-text) !important;
}
table.dataTable thead {
  background: var(--kb-bg-deep);
}
table.dataTable thead th {
  border-bottom: 1px solid var(--kb-border) !important;
  color: var(--kb-subtext);
  font-weight: 600;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
table.dataTable tbody tr {
  background: var(--kb-panel);
  color: var(--kb-text);
  border-bottom: 1px solid var(--kb-border);
}
table.dataTable tbody tr:hover { background: var(--kb-card); }
table.dataTable.no-footer { border-bottom: 1px solid var(--kb-border); }
table.kb-table-flat td { padding: 10px 14px; }

.kb-row-muted { opacity: 0.55; text-decoration: line-through; }

/* ============================================================
   Forms helpers
   ============================================================ */
.kb-form .form-section {
  background: var(--kb-panel); border: 1px solid var(--kb-border);
  border-radius: var(--kb-radius); padding: 20px 22px; margin-bottom: 18px;
}
.kb-form .form-section h4 {
  font-size: 14px; text-transform: uppercase; letter-spacing: 0.5px;
  color: var(--kb-subtext); margin: 0 0 16px;
  border-bottom: 1px solid var(--kb-border); padding-bottom: 10px;
}
.kb-form label { font-size: 12px; color: var(--kb-subtext); text-transform: uppercase; letter-spacing: 0.3px; margin-bottom: 4px; }
.kb-form .form-actions {
  display: flex; gap: 8px; justify-content: flex-end;
  padding: 16px 0; position: sticky; bottom: 0;
  background: var(--kb-bg); margin-top: 16px;
}

.kb-switch {
  position: relative; display: inline-block; width: 42px; height: 22px; vertical-align: middle;
}
.kb-switch input { opacity: 0; width: 0; height: 0; }
.kb-switch .slider {
  position: absolute; cursor: pointer; inset: 0;
  background: var(--kb-bg-deep); border: 1px solid var(--kb-border);
  border-radius: 22px; transition: 0.2s;
}
.kb-switch .slider::before {
  content: ''; position: absolute; height: 16px; width: 16px;
  left: 2px; top: 2px; background: var(--kb-subtext);
  border-radius: 50%; transition: 0.2s;
}
.kb-switch input:checked + .slider { background: var(--kb-accent); border-color: var(--kb-accent); }
.kb-switch input:checked + .slider::before { transform: translateX(20px); background: #fff; }

/* Modal dark */
.modal-content { background: var(--kb-panel); color: var(--kb-text); border: 1px solid var(--kb-border); }
.modal-header, .modal-footer { border-color: var(--kb-border); }
.modal-header .btn-close { filter: invert(1); }