*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg: #0d0f1a;
  --surface: #151827;
  --surface2: #1c1f30;
  --surface3: #242740;
  --border: #252840;
  --border2: #303458;
  --accent: #4f6ef7;
  --accent-dim: rgba(79,110,247,0.15);
  --accent-glow: rgba(79,110,247,0.3);
  --text: #e8eaf6;
  --text2: #9da3c4;
  --muted: #5c6080;
  --error: #f45f6e;
  --error-dim: rgba(244,95,110,0.12);
  --success: #34d399;
  --success-dim: rgba(52,211,153,0.12);
  --warning: #fbbf24;
  --warning-dim: rgba(251,191,36,0.12);
  --sent: #34d399;
  --failed: #f45f6e;
  --pending: #fbbf24;
  --opened: #a78bfa;
  --sidebar-w: 240px;
  --header-h: 60px;
  --radius: 10px;
  --shadow: 0 4px 24px rgba(0,0,0,0.4);
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  font-size: 14px;
  line-height: 1.5;
  min-height: 100vh;
}

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

/* ── Layout ── */
#app { display: flex; height: 100vh; overflow: hidden; }

/* ── Sidebar ── */
#sidebar {
  width: var(--sidebar-w);
  min-width: var(--sidebar-w);
  background: var(--surface);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.sidebar-logo {
  padding: 20px 20px 16px;
  display: flex;
  align-items: center;
  gap: 10px;
  border-bottom: 1px solid var(--border);
}

.logo-icon {
  width: 34px; height: 34px;
  background: linear-gradient(135deg, #4f6ef7, #7c5ff7);
  border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  font-size: 16px; flex-shrink: 0;
}

.logo-text {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 18px; font-weight: 700;
  color: var(--text);
}

.sidebar-nav { flex: 1; padding: 12px 10px; overflow-y: auto; }

.nav-section {
  font-size: 10px; font-weight: 600;
  text-transform: uppercase; letter-spacing: 0.1em;
  color: var(--muted);
  padding: 12px 10px 6px;
}

.nav-item {
  display: flex; align-items: center; gap: 10px;
  padding: 9px 12px;
  border-radius: 8px;
  cursor: pointer;
  color: var(--text2);
  font-size: 13.5px; font-weight: 500;
  transition: background 0.15s, color 0.15s;
  margin-bottom: 2px;
}

.nav-item:hover { background: var(--surface2); color: var(--text); }
.nav-item.active { background: var(--accent-dim); color: var(--accent); }
.nav-item .icon { font-size: 16px; width: 20px; text-align: center; }

.sidebar-footer {
  padding: 12px 10px;
  border-top: 1px solid var(--border);
}

.user-pill {
  display: flex; align-items: center; gap: 10px;
  padding: 8px 10px;
  border-radius: 8px;
  cursor: pointer;
  transition: background 0.15s;
}
.user-pill:hover { background: var(--surface2); }

.user-avatar {
  width: 30px; height: 30px;
  background: linear-gradient(135deg, #4f6ef7, #7c5ff7);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 12px; font-weight: 700; flex-shrink: 0;
}

.user-info { flex: 1; min-width: 0; }
.user-name { font-size: 13px; font-weight: 600; color: var(--text); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.user-role { font-size: 11px; color: var(--muted); text-transform: capitalize; }

/* ── Main ── */
#main {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  min-width: 0;
}

.page-header {
  height: var(--header-h);
  border-bottom: 1px solid var(--border);
  display: flex; align-items: center;
  padding: 0 24px;
  gap: 16px;
  background: var(--surface);
  flex-shrink: 0;
}

.page-header h2 {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 17px; font-weight: 700;
  flex: 1;
}

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

/* ── Tab panes ── */
.tab-pane { display: none; }
.tab-pane.active { display: block; }

/* ── Stat cards ── */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 14px;
  margin-bottom: 24px;
}

.stat-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px 20px;
}

.stat-label { font-size: 12px; color: var(--muted); text-transform: uppercase; letter-spacing: 0.05em; margin-bottom: 6px; }
.stat-value { font-family: 'Space Grotesk', sans-serif; font-size: 28px; font-weight: 700; }
.stat-card.sent .stat-value { color: var(--sent); }
.stat-card.failed .stat-value { color: var(--failed); }
.stat-card.opened .stat-value { color: var(--opened); }
.stat-card.pending .stat-value { color: var(--pending); }

/* ── Buttons ── */
.btn {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 8px 16px;
  border-radius: 8px; border: none;
  font-size: 13.5px; font-weight: 600;
  cursor: pointer; font-family: inherit;
  transition: background 0.15s, transform 0.1s, box-shadow 0.15s;
  white-space: nowrap;
}
.btn:active { transform: scale(0.97); }
.btn-primary { background: var(--accent); color: white; }
.btn-primary:hover { background: #3d5ce0; box-shadow: 0 3px 14px var(--accent-glow); }
.btn-secondary { background: var(--surface3); color: var(--text); }
.btn-secondary:hover { background: var(--border2); }
.btn-danger { background: var(--error-dim); color: var(--error); border: 1px solid rgba(244,95,110,0.25); }
.btn-danger:hover { background: rgba(244,95,110,0.22); }
.btn-success { background: var(--success-dim); color: var(--success); border: 1px solid rgba(52,211,153,0.25); }
.btn-success:hover { background: rgba(52,211,153,0.22); }
.btn-sm { padding: 5px 10px; font-size: 12px; }
.btn:disabled { opacity: 0.5; cursor: not-allowed; transform: none; }

/* ── Search / Input ── */
.search-box {
  display: flex; align-items: center;
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0 12px;
  gap: 8px;
}
.search-box input {
  background: none; border: none; outline: none;
  color: var(--text); font-family: inherit; font-size: 13.5px;
  padding: 8px 0; width: 220px;
}
.search-box .search-icon { color: var(--muted); }

.form-input, .form-select, .form-textarea {
  width: 100%;
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 9px 12px;
  font-size: 13.5px;
  color: var(--text);
  font-family: inherit;
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
}
.form-input:focus, .form-select:focus, .form-textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-dim);
}
.form-textarea { resize: vertical; min-height: 120px; line-height: 1.6; }
.form-select option { background: var(--surface2); }

.form-group { margin-bottom: 16px; }
.form-label {
  display: block; font-size: 12px; font-weight: 600;
  color: var(--text2); text-transform: uppercase;
  letter-spacing: 0.05em; margin-bottom: 6px;
}

/* ── Tables ── */
.table-wrap {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}

table { width: 100%; border-collapse: collapse; }
thead th {
  background: var(--surface2);
  padding: 10px 14px;
  text-align: left;
  font-size: 11px; font-weight: 600;
  text-transform: uppercase; letter-spacing: 0.07em;
  color: var(--muted);
  border-bottom: 1px solid var(--border);
}
tbody tr { border-bottom: 1px solid var(--border); transition: background 0.12s; }
tbody tr:last-child { border-bottom: none; }
tbody tr:hover { background: var(--surface2); }
tbody td { padding: 11px 14px; }

/* ── Badges ── */
.badge {
  display: inline-flex; align-items: center;
  padding: 3px 9px; border-radius: 20px;
  font-size: 11px; font-weight: 600;
  text-transform: capitalize; letter-spacing: 0.03em;
}
.badge-draft     { background: var(--surface3); color: var(--text2); }
.badge-sending   { background: var(--warning-dim); color: var(--warning); }
.badge-completed { background: var(--success-dim); color: var(--success); }
.badge-stopped   { background: var(--error-dim); color: var(--error); }
.badge-sent      { background: var(--success-dim); color: var(--success); }
.badge-failed    { background: var(--error-dim); color: var(--error); }
.badge-pending   { background: var(--warning-dim); color: var(--warning); }
.badge-opened    { background: rgba(167,139,250,0.15); color: var(--opened); }
.badge-unsubscribed { background: var(--surface3); color: var(--muted); }
.badge-admin { background: rgba(79,110,247,0.18); color: var(--accent); }
.badge-agent { background: var(--surface3); color: var(--text2); }

/* ── Modal ── */
.modal-overlay {
  position: fixed; inset: 0;
  background: rgba(0,0,0,0.65);
  backdrop-filter: blur(4px);
  display: flex; align-items: center; justify-content: center;
  z-index: 100;
  opacity: 0; pointer-events: none;
  transition: opacity 0.2s;
}
.modal-overlay.show { opacity: 1; pointer-events: auto; }

.modal {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  width: 100%; max-width: 580px;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: var(--shadow);
  transform: translateY(20px) scale(0.97);
  transition: transform 0.25s cubic-bezier(0.16,1,0.3,1);
}
.modal-overlay.show .modal { transform: translateY(0) scale(1); }
.modal.modal-wide { max-width: 780px; }
.modal.modal-xl { max-width: 960px; }

.modal-header {
  padding: 20px 24px 16px;
  border-bottom: 1px solid var(--border);
  display: flex; align-items: center; gap: 12px;
}
.modal-title { font-family: 'Space Grotesk', sans-serif; font-size: 17px; font-weight: 700; flex: 1; }
.modal-close {
  width: 30px; height: 30px;
  background: var(--surface2); border: none; border-radius: 6px;
  color: var(--muted); cursor: pointer; font-size: 18px;
  display: flex; align-items: center; justify-content: center;
  transition: background 0.15s, color 0.15s;
}
.modal-close:hover { background: var(--surface3); color: var(--text); }
.modal-body { padding: 24px; }
.modal-footer {
  padding: 16px 24px;
  border-top: 1px solid var(--border);
  display: flex; justify-content: flex-end; gap: 10px;
}

/* ── Toast ── */
#toast-container {
  position: fixed; bottom: 24px; right: 24px;
  z-index: 9999; display: flex; flex-direction: column; gap: 8px;
}
.toast {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 12px 18px;
  font-size: 13.5px;
  box-shadow: var(--shadow);
  display: flex; align-items: center; gap: 10px;
  animation: toastIn 0.3s cubic-bezier(0.16,1,0.3,1);
  max-width: 340px;
}
.toast.success { border-left: 3px solid var(--success); }
.toast.error   { border-left: 3px solid var(--error); }
.toast.info    { border-left: 3px solid var(--accent); }
@keyframes toastIn { from { opacity:0; transform: translateX(20px); } to { opacity:1; transform: translateX(0); } }

/* ── Empty state ── */
.empty-state {
  text-align: center; padding: 60px 24px;
  color: var(--muted);
}
.empty-state .empty-icon { font-size: 48px; margin-bottom: 16px; opacity: 0.5; }
.empty-state h3 { color: var(--text2); margin-bottom: 8px; font-size: 16px; }
.empty-state p { font-size: 13.5px; }

/* ── Progress bar ── */
.progress-bar {
  background: var(--surface3);
  border-radius: 4px;
  height: 6px;
  overflow: hidden;
}
.progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--accent), #7c5ff7);
  border-radius: 4px;
  transition: width 0.5s ease;
}

/* ── Variable chip ── */
.var-chips { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 8px; }
.var-chip {
  background: var(--accent-dim);
  border: 1px solid rgba(79,110,247,0.3);
  color: var(--accent);
  padding: 3px 10px; border-radius: 20px;
  font-size: 12px; cursor: pointer; font-family: 'JetBrains Mono', monospace;
  transition: background 0.15s;
}
.var-chip:hover { background: rgba(79,110,247,0.25); }

/* ── Scrollbar ── */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border2); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--muted); }

/* ── Upload area ── */
.upload-area {
  border: 2px dashed var(--border2);
  border-radius: var(--radius);
  padding: 32px;
  text-align: center;
  cursor: pointer;
  transition: border-color 0.2s, background 0.2s;
  color: var(--muted);
}
.upload-area:hover, .upload-area.drag-over {
  border-color: var(--accent);
  background: var(--accent-dim);
  color: var(--accent);
}
.upload-area .upload-icon { font-size: 32px; margin-bottom: 8px; }
.upload-area p { font-size: 14px; }
.upload-area small { font-size: 12px; opacity: 0.7; }

/* ── Row actions ── */
.row-actions { display: flex; gap: 6px; opacity: 0; transition: opacity 0.15s; }
tr:hover .row-actions { opacity: 1; }

/* ── Inline editor for template ── */
.template-editor-wrap {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}
.template-tabs {
  display: flex;
  background: var(--surface2);
  border-bottom: 1px solid var(--border);
}
.template-tab {
  padding: 8px 16px;
  font-size: 12px; font-weight: 600;
  text-transform: uppercase; letter-spacing: 0.05em;
  color: var(--muted);
  cursor: pointer;
  transition: color 0.15s;
}
.template-tab.active { color: var(--accent); border-bottom: 2px solid var(--accent); }

/* ── Divider ── */
.divider { border: none; border-top: 1px solid var(--border); margin: 20px 0; }

/* ── Responsive ── */
@media (max-width: 768px) {
  #sidebar { display: none; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
}