:root {
  --font-sans: -apple-system, BlinkMacSystemFont, "SF Pro Text", "SF Pro Display",
    "Helvetica Neue", Helvetica, Arial, sans-serif;
  --font-mono: "SF Mono", SFMono-Regular, ui-monospace, Menlo, Monaco, Consolas, monospace;

  --bg: #161618;
  --bg-elevated: #1e1e20;
  --bg-panel: #252528;
  --bg-hover: #2e2e32;
  --border: rgba(255, 255, 255, 0.08);
  --border-strong: rgba(255, 255, 255, 0.14);

  --text: #f5f5f7;
  --text-secondary: #a1a1a6;
  --text-tertiary: #6e6e73;

  --accent: #0a84ff;
  --accent-hover: #409cff;
  --success: #30d158;
  --warning: #ff9f0a;
  --danger: #ff453a;

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --shadow: 0 2px 16px rgba(0, 0, 0, 0.28);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

body.dewatanet-olt {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 15px;
  line-height: 1.5;
  letter-spacing: -0.01em;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

body.dewatanet-olt h1,
body.dewatanet-olt h2,
body.dewatanet-olt h3,
body.dewatanet-olt h4,
body.dewatanet-olt h5,
body.dewatanet-olt .card-title {
  font-family: var(--font-sans);
  font-weight: 600;
  letter-spacing: -0.02em;
}

/* ── Header & Sidebar ── */
body.dewatanet-olt .main-header {
  background: rgba(22, 22, 24, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  box-shadow: none;
}

body.dewatanet-olt .main-header .nav-link,
body.dewatanet-olt .main-header .navbar-nav .nav-link {
  color: var(--text-secondary);
  font-size: 14px;
  font-weight: 500;
}

body.dewatanet-olt .main-sidebar {
  background: var(--bg-elevated) !important;
  border-right: 1px solid var(--border);
  box-shadow: none !important;
}

body.dewatanet-olt .brand-link {
  border-bottom: 1px solid var(--border) !important;
  background: transparent;
  padding: 1rem 0.75rem;
}

body.dewatanet-olt .brand-text {
  color: var(--text) !important;
  font-weight: 600 !important;
  font-size: 15px !important;
  letter-spacing: -0.02em;
}

body.dewatanet-olt .nav-sidebar .nav-link {
  color: var(--text-secondary);
  border-radius: var(--radius-sm);
  margin: 2px 8px;
  font-size: 14px;
  font-weight: 500;
  transition: background 0.15s ease, color 0.15s ease;
}

body.dewatanet-olt .nav-sidebar .nav-link .nav-icon {
  font-size: 15px;
  opacity: 0.85;
}

body.dewatanet-olt .nav-sidebar .nav-link.active,
body.dewatanet-olt .nav-sidebar .nav-link:hover {
  background: var(--bg-hover) !important;
  color: var(--text) !important;
  box-shadow: none;
}

body.dewatanet-olt .nav-sidebar .nav-link.active {
  background: rgba(10, 132, 255, 0.15) !important;
  color: var(--accent) !important;
}

/* ── Content area ── */
body.dewatanet-olt .content-wrapper {
  background: var(--bg);
}

body.dewatanet-olt .content-header {
  padding: 1.25rem 0 0.5rem;
}

body.dewatanet-olt .content-header h1 {
  color: var(--text);
  font-size: 1.375rem;
  font-weight: 600;
  margin: 0;
}

body.dewatanet-olt .content {
  padding-top: 0.5rem;
}

body.dewatanet-olt .main-footer {
  background: var(--bg-elevated);
  border-top: 1px solid var(--border);
  color: var(--text-tertiary);
  font-size: 13px;
}

/* ── Cards ── */
body.dewatanet-olt .card {
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow);
  color: var(--text);
  overflow: hidden;
}

body.dewatanet-olt .card-header {
  background: transparent;
  border-bottom: 1px solid var(--border);
  color: var(--text);
  padding: 0.875rem 1.125rem;
}

body.dewatanet-olt .card-title {
  color: var(--text);
  font-size: 15px;
  font-weight: 600;
}

body.dewatanet-olt .card-body {
  padding: 0;
}

body.dewatanet-olt .card-footer {
  background: transparent;
  border-top: 1px solid var(--border);
}

/* ── Alerts & callouts ── */
body.dewatanet-olt .callout {
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  border-left-width: 4px;
  color: var(--text);
  padding: 1rem 1.125rem;
}

body.dewatanet-olt .callout h5 {
  font-size: 14px;
  font-weight: 600;
  color: var(--text);
}

body.dewatanet-olt .callout p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.55;
}

body.dewatanet-olt .callout-success {
  border-left-color: var(--success);
}

body.dewatanet-olt .callout-danger {
  border-left-color: var(--danger);
}

body.dewatanet-olt .alert-warning {
  background: rgba(255, 159, 10, 0.1);
  border: 1px solid rgba(255, 159, 10, 0.25);
  border-radius: var(--radius-md);
  color: #ffd699;
  font-size: 14px;
  line-height: 1.55;
}

body.dewatanet-olt .alert-danger {
  background: rgba(255, 69, 58, 0.1);
  border: 1px solid rgba(255, 69, 58, 0.25);
  border-radius: var(--radius-md);
  color: #ffb4af;
  font-size: 14px;
}

body.dewatanet-olt .text-muted {
  color: var(--text-secondary) !important;
}

body.dewatanet-olt code {
  font-family: var(--font-mono);
  font-size: 0.85em;
  color: #ff9f0a;
  background: rgba(255, 255, 255, 0.06);
  padding: 0.15em 0.45em;
  border-radius: 5px;
}

/* ── Buttons ── */
body.dewatanet-olt .btn {
  font-family: var(--font-sans);
  font-size: 14px;
  font-weight: 500;
  border-radius: var(--radius-sm);
  padding: 0.4rem 0.875rem;
  transition: background 0.15s ease, border-color 0.15s ease, opacity 0.15s ease;
}

body.dewatanet-olt .btn-primary {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

body.dewatanet-olt .btn-primary:hover {
  background: var(--accent-hover);
  border-color: var(--accent-hover);
}

body.dewatanet-olt .btn-outline-info {
  color: var(--accent);
  border-color: rgba(10, 132, 255, 0.45);
  background: transparent;
}

body.dewatanet-olt .btn-outline-info:hover {
  background: rgba(10, 132, 255, 0.12);
  color: var(--accent-hover);
  border-color: var(--accent);
}

body.dewatanet-olt .btn-outline-danger {
  font-size: 13px;
  border-radius: var(--radius-sm);
}

body.dewatanet-olt .btn-default,
body.dewatanet-olt .btn-secondary {
  background: var(--bg-hover);
  border-color: var(--border-strong);
  color: var(--text);
}

body.dewatanet-olt .btn-default:hover,
body.dewatanet-olt .btn-secondary:hover {
  background: #3a3a3e;
  color: var(--text);
}

body.dewatanet-olt .badge-success {
  background: rgba(48, 209, 88, 0.18);
  color: var(--success);
  font-weight: 600;
  font-size: 12px;
  padding: 0.3em 0.6em;
  border-radius: 6px;
}

body.dewatanet-olt .badge-danger {
  background: rgba(255, 69, 58, 0.18);
  color: var(--danger);
  font-weight: 600;
  font-size: 12px;
  padding: 0.3em 0.6em;
  border-radius: 6px;
}

body.dewatanet-olt .badge-secondary {
  background: rgba(255, 255, 255, 0.08);
  color: var(--text-secondary);
  font-weight: 500;
  border-radius: 6px;
}

/* ── Forms ── */
body.dewatanet-olt .form-control {
  background: var(--bg-elevated);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 14px;
  padding: 0.45rem 0.75rem;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

body.dewatanet-olt .form-control:focus {
  background: var(--bg-elevated);
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(10, 132, 255, 0.2);
  color: var(--text);
}

body.dewatanet-olt .form-control::placeholder {
  color: var(--text-tertiary);
}

body.dewatanet-olt .input-group-text {
  background: var(--bg-hover);
  border-color: var(--border-strong);
  color: var(--text-secondary);
  font-size: 13px;
  font-weight: 500;
  border-radius: var(--radius-sm) 0 0 var(--radius-sm);
}

/* ── Tables ── */
body.dewatanet-olt .table {
  color: var(--text);
  margin-bottom: 0;
}

body.dewatanet-olt .table thead th {
  background: var(--bg-elevated);
  color: var(--text-secondary);
  border-color: var(--border);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  white-space: nowrap;
  padding: 0.65rem 0.875rem;
}

body.dewatanet-olt .table td,
body.dewatanet-olt .table th {
  border-color: var(--border);
  vertical-align: middle;
}

body.dewatanet-olt .table tbody td {
  font-size: 14px;
  padding: 0.6rem 0.875rem;
  color: var(--text);
}

body.dewatanet-olt .table-hover tbody tr:hover {
  background: var(--bg-hover);
}

body.dewatanet-olt .table-bordered {
  border-color: var(--border);
}

.olt-table {
  font-size: 14px;
}

.olt-table th,
.olt-table td {
  padding: 0.6rem 0.875rem;
}

.olt-table a {
  color: var(--accent);
  text-decoration: none;
  font-weight: 500;
}

.olt-table a:hover {
  color: var(--accent-hover);
  text-decoration: underline;
  background: none;
}

/* ── Status indicators ── */
.olt-status-dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  margin-right: 6px;
  vertical-align: middle;
  flex-shrink: 0;
}

.olt-status-dot.online {
  background: var(--success);
  box-shadow: 0 0 0 2px rgba(48, 209, 88, 0.25);
}

.olt-status-dot.offline {
  background: var(--text-tertiary);
}

.olt-rx-ok {
  background: rgba(48, 209, 88, 0.14);
  color: #5de87a;
}

.olt-rx-warn {
  background: rgba(255, 159, 10, 0.14);
  color: #ffb84d;
}

.olt-rx-bad {
  background: rgba(255, 69, 58, 0.14);
  color: #ff6961;
}

.olt-badge {
  display: inline-block;
  padding: 0.2em 0.55em;
  border-radius: 6px;
  font-size: 12px;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
  letter-spacing: 0;
}

.olt-btn-summon {
  background: transparent;
  border: 1px solid var(--border-strong);
  color: var(--text-secondary);
  border-radius: 6px;
  padding: 0.25rem 0.5rem;
  cursor: pointer;
  font-size: 13px;
  line-height: 1;
  transition: background 0.15s ease, color 0.15s ease, border-color 0.15s ease;
}

.olt-btn-summon:hover {
  background: rgba(10, 132, 255, 0.12);
  border-color: var(--accent);
  color: var(--accent);
}

/* ── Stat chips ── */
.olt-stats-bar {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 0.875rem;
  margin-bottom: 1.25rem;
}

.olt-stat-chip {
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 1rem 1.125rem;
  text-align: left;
  transition: border-color 0.15s ease;
}

.olt-stat-chip:hover {
  border-color: var(--border-strong);
}

.olt-stat-chip .value {
  font-size: 1.75rem;
  font-weight: 600;
  color: var(--text);
  line-height: 1.2;
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.03em;
}

.olt-stat-chip .label {
  font-size: 13px;
  color: var(--text-secondary);
  font-weight: 500;
  margin-top: 0.2rem;
  text-transform: none;
  letter-spacing: 0;
}

.olt-stat-chip.online .value { color: var(--success); }
.olt-stat-chip.offline .value { color: var(--danger); }

/* ── Page toolbar ── */
.olt-page-toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: flex-end;
  gap: 0.5rem;
}

.olt-page-toolbar small {
  font-size: 13px;
  color: var(--text-secondary);
  width: 100%;
  text-align: right;
}

/* ── Login ── */
body.dewatanet-olt.login-page {
  background: var(--bg);
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
}

body.dewatanet-olt .login-box {
  width: 380px;
  max-width: 92vw;
}

body.dewatanet-olt .login-box .card {
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
}

body.dewatanet-olt .login-card-body {
  padding: 2rem 1.75rem;
}

body.dewatanet-olt .login-logo {
  color: var(--text);
  font-weight: 600;
  font-size: 1.375rem;
  letter-spacing: -0.02em;
  margin-bottom: 0.5rem;
}

body.dewatanet-olt .login-box-msg {
  color: var(--text-secondary);
  font-size: 14px;
  margin-bottom: 1.25rem;
}

body.dewatanet-olt .login-box .btn-primary {
  padding: 0.55rem;
  font-size: 15px;
  font-weight: 600;
  border-radius: var(--radius-sm);
}

body.dewatanet-olt .login-box label {
  color: var(--text-secondary);
  font-size: 13px;
  font-weight: 500;
  margin-bottom: 0.35rem;
  display: block;
}

body.dewatanet-olt .form-group {
  margin-bottom: 1rem;
}

/* ── Modal (tableall dll) ── */
body.dewatanet-olt .modal-content {
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  color: var(--text);
}

body.dewatanet-olt .modal-header {
  border-bottom: 1px solid var(--border);
}

body.dewatanet-olt .modal-footer {
  border-top: 1px solid var(--border);
}

body.dewatanet-olt .close {
  color: var(--text-secondary);
  text-shadow: none;
}

/* ── Responsive ── */
@media (max-width: 768px) {
  body.dewatanet-olt {
    font-size: 14px;
  }

  body.dewatanet-olt .content-header h1 {
    font-size: 1.125rem;
  }

  .olt-table {
    font-size: 13px;
  }

  .olt-table th,
  .olt-table td {
    padding: 0.5rem 0.65rem;
  }

  .olt-stat-chip .value {
    font-size: 1.5rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    transition-duration: 0.01ms !important;
  }
}