/* ── CSS Variables ─────────────────────────────────────────────────────────── */
:root {
  --bg: #0f1923;
  --card: #1a2632;
  --card-alt: #162231;
  --sidebar: #0d1520;
  --border: #1e3045;
  --primary: #3b82f6;
  --primary-hover: #2563eb;
  --success: #22c55e;
  --warning: #f59e0b;
  --danger: #ef4444;
  --text: #e2e8f0;
  --muted: #64748b;
  --label: #94a3b8;
  --sidebar-w: 220px;
  --topbar-h: 56px;
}

/* ── Reset ─────────────────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html, body { height: 100%; }
body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  font-size: 14px;
  line-height: 1.5;
}
a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ── Layout ────────────────────────────────────────────────────────────────── */
.layout { display: flex; height: 100vh; overflow: hidden; }

/* Sidebar */
.sidebar {
  width: var(--sidebar-w);
  background: var(--sidebar);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
  height: 100vh;
  overflow-y: auto;
}

.sidebar-logo {
  padding: 18px 20px;
  font-size: 18px;
  font-weight: 700;
  color: var(--text);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 10px;
}

.sidebar-nav { padding: 12px 0; flex: 1; }

.sidebar-nav a {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 20px;
  color: var(--label);
  font-size: 14px;
  transition: background 0.15s, color 0.15s;
  border-radius: 0;
  text-decoration: none;
}
.sidebar-nav a:hover { background: var(--border); color: var(--text); }
.sidebar-nav a.active {
  background: rgba(59,130,246,0.15);
  color: var(--primary);
  border-right: 3px solid var(--primary);
}
.sidebar-nav .nav-icon { font-size: 16px; width: 20px; text-align: center; }

.sidebar-footer {
  padding: 16px 20px;
  border-top: 1px solid var(--border);
  font-size: 12px;
  color: var(--muted);
}

/* Main area */
.main { flex: 1; display: flex; flex-direction: column; overflow: hidden; }

.content { flex: 1; overflow-y: auto; padding: 24px; }

/* ── Cards ──────────────────────────────────────────────────────────────────── */
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 20px;
  margin-bottom: 20px;
}
.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}
.card-title { font-size: 15px; font-weight: 600; color: var(--text); }

/* ── KPI Cards ──────────────────────────────────────────────────────────────── */
.kpi-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}
.kpi-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 16px;
}
.kpi-label { font-size: 12px; color: var(--muted); margin-bottom: 6px; }
.kpi-value { font-size: 28px; font-weight: 700; color: var(--text); }
.kpi-sub { font-size: 11px; color: var(--muted); margin-top: 4px; }
.kpi-card.blue .kpi-value { color: var(--primary); }
.kpi-card.green .kpi-value { color: var(--success); }
.kpi-card.yellow .kpi-value { color: var(--warning); }
.kpi-card.red .kpi-value { color: var(--danger); }

/* ── Tables ─────────────────────────────────────────────────────────────────── */
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; }
thead tr { background: var(--sidebar); }
thead th {
  padding: 10px 14px;
  text-align: left;
  font-size: 12px;
  font-weight: 600;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border-bottom: 1px solid var(--border);
}
tbody tr { border-bottom: 1px solid var(--border); transition: background 0.1s; }
tbody tr:nth-child(even) { background: var(--card-alt); }
tbody tr:hover { background: var(--border); }
tbody td { padding: 10px 14px; color: var(--text); font-size: 13px; }
.table-empty { text-align: center; color: var(--muted); padding: 40px; }

/* ── Forms ──────────────────────────────────────────────────────────────────── */
.form-group { margin-bottom: 16px; }
.form-label {
  display: block;
  margin-bottom: 6px;
  font-size: 13px;
  color: var(--label);
  font-weight: 500;
}
.form-control {
  width: 100%;
  background: var(--sidebar);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 8px 12px;
  border-radius: 6px;
  font-size: 14px;
  transition: border-color 0.15s;
  font-family: inherit;
}
.form-control:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 2px rgba(59,130,246,0.2);
}
textarea.form-control { resize: vertical; min-height: 120px; }
select.form-control { cursor: pointer; }
.form-check { display: flex; align-items: center; gap: 8px; margin-bottom: 12px; }
.form-check input[type="checkbox"] {
  width: 16px; height: 16px; accent-color: var(--primary); cursor: pointer;
}
.form-hint { font-size: 12px; color: var(--muted); margin-top: 4px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-row-3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 16px; }

/* ── Buttons ─────────────────────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  border-radius: 6px;
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  border: none;
  transition: background 0.15s, opacity 0.15s;
  text-decoration: none;
  font-family: inherit;
}
.btn:hover { opacity: 0.85; text-decoration: none; }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }
.btn-primary { background: var(--primary); color: #fff; }
.btn-success { background: var(--success); color: #fff; }
.btn-warning { background: var(--warning); color: #fff; }
.btn-danger { background: var(--danger); color: #fff; }
.btn-outline {
  background: transparent;
  color: var(--label);
  border: 1px solid var(--border);
}
.btn-outline:hover { background: var(--border); color: var(--text); }
.btn-sm { padding: 5px 10px; font-size: 12px; }
.btn-group { display: flex; gap: 8px; flex-wrap: wrap; }

/* ── Badges / Status ──────────────────────────────────────────────────────────── */
.badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 12px;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.badge-blue { background: rgba(59,130,246,0.2); color: var(--primary); }
.badge-green { background: rgba(34,197,94,0.2); color: var(--success); }
.badge-yellow { background: rgba(245,158,11,0.2); color: var(--warning); }
.badge-red { background: rgba(239,68,68,0.2); color: var(--danger); }
.badge-gray { background: rgba(100,116,139,0.2); color: var(--muted); }

/* Send-log status/engagement pills */
.status-stack { display:flex; flex-direction:column; gap:6px; align-items:flex-start; }
.badge-delivery { font-weight:700; }
.engagement-tags { display:flex; gap:6px; flex-wrap:wrap; }
.badge-open {
  background: rgba(251, 191, 36, 0.18);
  color: #facc15;
  border: 1px solid rgba(251, 191, 36, 0.4);
}
.badge-click {
  background: rgba(168, 85, 247, 0.18);
  color: #c084fc;
  border: 1px solid rgba(168, 85, 247, 0.38);
}

/* ── Tabs ────────────────────────────────────────────────────────────────────── */
.tabs { display: flex; gap: 0; border-bottom: 1px solid var(--border); margin-bottom: 20px; }
.tab-btn {
  padding: 10px 18px;
  background: none;
  border: none;
  border-bottom: 3px solid transparent;
  color: var(--muted);
  font-size: 14px;
  cursor: pointer;
  font-family: inherit;
  transition: color 0.15s, border-color 0.15s;
  margin-bottom: -1px;
}
.tab-btn:hover { color: var(--text); }
.tab-btn.active { color: var(--primary); border-bottom-color: var(--primary); }
.tab-pane { display: none; }
.tab-pane.active { display: block; }

/* ── Flash messages ──────────────────────────────────────────────────────────── */
.flash { padding: 12px 16px; border-radius: 6px; margin-bottom: 16px; font-size: 13px; }
.flash-success { background: rgba(34,197,94,0.15); color: var(--success); border: 1px solid rgba(34,197,94,0.3); }
.flash-error { background: rgba(239,68,68,0.15); color: var(--danger); border: 1px solid rgba(239,68,68,0.3); }
.flash-warning { background: rgba(245,158,11,0.15); color: var(--warning); border: 1px solid rgba(245,158,11,0.3); }
.flash-info { background: rgba(59,130,246,0.15); color: var(--primary); border: 1px solid rgba(59,130,246,0.3); }

/* ── Toast ───────────────────────────────────────────────────────────────────── */
#toast-container {
  position: fixed; top: 16px; right: 16px; z-index: 9999;
  display: flex; flex-direction: column; gap: 8px;
}
.toast {
  padding: 12px 16px;
  border-radius: 6px;
  font-size: 13px;
  min-width: 220px;
  max-width: 360px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.4);
  animation: slideIn 0.2s ease;
}
.toast-success { background: #166534; color: #bbf7d0; border: 1px solid #22c55e; }
.toast-error { background: #7f1d1d; color: #fecaca; border: 1px solid #ef4444; }
.toast-info { background: #1e3a5f; color: #bfdbfe; border: 1px solid #3b82f6; }
.toast-warning { background: #78350f; color: #fde68a; border: 1px solid #f59e0b; }
@keyframes slideIn { from { transform: translateX(40px); opacity: 0; } to { transform: none; opacity: 1; } }

/* ── Modal ───────────────────────────────────────────────────────────────────── */
.modal-overlay {
  position: fixed; inset: 0; background: rgba(0,0,0,0.6);
  z-index: 1000; display: none; align-items: center; justify-content: center;
}
.modal-overlay.open { display: flex; }
.modal {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 24px;
  min-width: 380px;
  max-width: 600px;
  width: 90%;
  max-height: 90vh;
  overflow-y: auto;
}
.modal-header {
  display: flex; justify-content: space-between; align-items: center; margin-bottom: 16px;
}
.modal-title { font-size: 16px; font-weight: 600; }
.modal-close { background: none; border: none; color: var(--muted); font-size: 20px; cursor: pointer; }
.modal-footer { display: flex; gap: 8px; justify-content: flex-end; margin-top: 20px; }

/* ── File Upload ─────────────────────────────────────────────────────────────── */
.upload-zone {
  border: 2px dashed var(--border);
  border-radius: 8px;
  padding: 32px 24px;
  text-align: center;
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s;
  color: var(--muted);
}
.upload-zone:hover, .upload-zone.dragover {
  border-color: var(--primary);
  background: rgba(59,130,246,0.05);
  color: var(--text);
}
.upload-zone input[type="file"] { display: none; }
.upload-icon { font-size: 32px; margin-bottom: 8px; }
.upload-progress { margin-top: 12px; display: none; }
.progress-bar { height: 6px; background: var(--border); border-radius: 3px; overflow: hidden; }
.progress-fill { height: 100%; background: var(--primary); border-radius: 3px; transition: width 0.2s; }

/* ── Pagination ──────────────────────────────────────────────────────────────── */
.pagination {
  display: flex; align-items: center; gap: 8px; margin-top: 16px;
  justify-content: center;
}
.page-btn {
  padding: 6px 12px; border-radius: 4px; border: 1px solid var(--border);
  background: var(--card); color: var(--label); cursor: pointer; font-size: 13px;
  text-decoration: none;
}
.page-btn:hover { background: var(--border); color: var(--text); }
.page-btn.active { background: var(--primary); color: #fff; border-color: var(--primary); }
.page-btn.disabled { opacity: 0.4; pointer-events: none; }
.page-info { color: var(--muted); font-size: 13px; }

/* ── Dashboard specifics ─────────────────────────────────────────────────────── */
.chart-container { position: relative; height: 220px; }
.activity-feed { max-height: 400px; overflow-y: auto; }
.activity-item {
  display: flex; align-items: flex-start; gap: 12px;
  padding: 10px 0; border-bottom: 1px solid var(--border);
}
.activity-item:last-child { border-bottom: none; }
.activity-icon { font-size: 16px; flex-shrink: 0; margin-top: 2px; }
.activity-meta { font-size: 12px; color: var(--muted); margin-top: 2px; }

/* ── Grid helpers ────────────────────────────────────────────────────────────── */
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.grid-3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 20px; }
.mt-2 { margin-top: 8px; }
.mt-4 { margin-top: 16px; }
.mb-2 { margin-bottom: 8px; }
.mb-4 { margin-bottom: 16px; }
.text-muted { color: var(--muted); }
.text-right { text-align: right; }
.flex { display: flex; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-2 { gap: 8px; }
.gap-4 { gap: 16px; }
.w-full { width: 100%; }

/* ── Provision log ────────────────────────────────────────────────────────────── */
.provision-log {
  background: #050c14;
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 16px;
  font-family: 'Courier New', monospace;
  font-size: 12px;
  color: #a3e635;
  max-height: 400px;
  overflow-y: auto;
  white-space: pre-wrap;
}
.progress-steps { margin-bottom: 16px; }
.step-bar { height: 8px; background: var(--border); border-radius: 4px; overflow: hidden; margin-top: 8px; }
.step-fill { height: 100%; background: var(--primary); border-radius: 4px; transition: width 0.4s ease; }

/* ── DNS table ───────────────────────────────────────────────────────────────── */
.dns-record { font-family: monospace; font-size: 12px; word-break: break-all; }

/* ── Campaign detail ─────────────────────────────────────────────────────────── */
.stat-row { display: flex; gap: 24px; flex-wrap: wrap; margin-bottom: 20px; }
.stat-item { text-align: center; }
.stat-value { font-size: 24px; font-weight: 700; }
.stat-label { font-size: 12px; color: var(--muted); }

/* ── Responsive ──────────────────────────────────────────────────────────────── */
@media (max-width: 900px) {
  html, body { width: 100%; overflow-x: hidden; }
  .layout { display: block !important; height: auto !important; overflow: visible !important; width: 100%; }

  /* Turn sidebar into top nav for phones */
  .sidebar {
    width: 100%;
    height: auto;
    border-right: none;
    border-bottom: 1px solid var(--border);
    overflow: visible;
  }
  .sidebar-logo { padding: 12px 14px; font-size: 16px; }
  .sidebar-nav {
    display: flex;
    overflow-x: auto;
    padding: 8px 8px 10px;
    gap: 8px;
    scrollbar-width: thin;
  }
  .sidebar-nav a {
    padding: 8px 10px;
    border: 1px solid var(--border);
    border-radius: 8px;
    white-space: nowrap;
    flex: 0 0 auto;
  }
  .sidebar-nav a.active {
    border-right: 1px solid var(--primary);
    border: 1px solid var(--primary);
  }
  .sidebar-footer { display: none !important; }

  .main { overflow: visible; }
  .content { padding: 12px; overflow: visible; }

  .card { padding: 14px; margin-bottom: 14px; }

  .form-row, .form-row-3, .grid-2, .grid-3 { grid-template-columns: 1fr; gap: 12px; }
  .kpi-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; }

  .btn-group { gap: 6px; }
  .btn { padding: 8px 12px; }

  .table-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; max-width: 100%; }
  table { min-width: 560px; width: 100%; }

  .modal { width: 96%; min-width: 0; padding: 14px; }
}

@media (max-width: 520px) {
  .kpi-grid { grid-template-columns: 1fr; }
  .filter-bar .form-control { min-width: 100%; width: 100%; }
}

/* ── Misc ────────────────────────────────────────────────────────────────────── */
.code { font-family: monospace; background: var(--sidebar); padding: 2px 6px; border-radius: 4px; font-size: 12px; }
.text-truncate { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
hr { border: none; border-top: 1px solid var(--border); margin: 20px 0; }
.loading { color: var(--muted); text-align: center; padding: 20px; }
.filter-bar { display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 16px; align-items: center; }
.filter-bar .form-control { width: auto; min-width: 140px; }