/* ── App Shell ── */
.app-shell {
  display: flex;
  min-height: 100vh;
}

.sidebar {
  width: 240px;
  flex-shrink: 0;
  background: var(--bg-elevated);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  padding: 1.5rem 0;
  position: fixed;
  top: 0; left: 0; bottom: 0;
}

.sidebar-brand {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.15rem;
  font-weight: 700;
  color: #fff;
  padding: 0 1.5rem 1.5rem;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.sidebar-brand-dot {
  width: 8px; height: 8px;
  background: var(--accent);
  border-radius: 50%;
  flex-shrink: 0;
}

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

.nav-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.65rem 1.5rem;
  font-size: 0.9rem;
  color: var(--fg-muted);
  text-decoration: none;
  transition: all 0.15s;
  border-left: 2px solid transparent;
}

.nav-item:hover {
  color: var(--fg);
  background: rgba(255,255,255,0.03);
}

.nav-item.active {
  color: var(--accent);
  border-left-color: var(--accent);
  background: var(--accent-glow);
}

.nav-icon { font-size: 1rem; width: 20px; text-align: center; }

.sidebar-footer {
  padding: 1rem 1.5rem 0;
  border-top: 1px solid var(--border);
}

.sidebar-footer a {
  font-size: 0.8rem;
  color: var(--fg-dim);
  text-decoration: none;
}

.sidebar-footer a:hover { color: var(--fg-muted); }

/* ── Main Content ── */
.main {
  margin-left: 240px;
  flex: 1;
  padding: 2rem 2.5rem;
  max-width: 1200px;
}

.page-header {
  margin-bottom: 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.page-header h1 {
  font-size: 1.75rem;
  color: #fff;
  letter-spacing: -0.02em;
}

.page-header p {
  font-size: 0.9rem;
  color: var(--fg-muted);
  margin-top: 0.25rem;
}

/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.6rem 1.25rem;
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
  font-weight: 500;
  font-family: 'Space Grotesk', sans-serif;
  cursor: pointer;
  border: none;
  transition: all 0.15s;
  text-decoration: none;
  white-space: nowrap;
}

.btn-primary {
  background: var(--accent);
  color: #0a0e17;
}
.btn-primary:hover { background: var(--accent-bright); }

.btn-ghost {
  background: transparent;
  color: var(--fg-muted);
  border: 1px solid var(--border);
}
.btn-ghost:hover { background: rgba(255,255,255,0.04); color: var(--fg); }

.btn-danger {
  background: rgba(248, 113, 113, 0.15);
  color: var(--danger);
  border: 1px solid rgba(248, 113, 113, 0.3);
}
.btn-danger:hover { background: rgba(248, 113, 113, 0.25); }

.btn-success {
  background: rgba(74, 222, 128, 0.15);
  color: var(--success);
  border: 1px solid rgba(74, 222, 128, 0.3);
}
.btn-success:hover { background: rgba(74, 222, 128, 0.25); }

.btn-sm { padding: 0.4rem 0.875rem; font-size: 0.8rem; }

.btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

/* ── Cards ── */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
}

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1rem;
}

.card-title {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1rem;
  font-weight: 600;
  color: #fff;
}

/* ── Stat Cards ── */
.stats-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
  margin-bottom: 2rem;
}

.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem 1.5rem;
}

.stat-card .stat-num {
  font-size: 1.75rem;
  margin-bottom: 0.25rem;
}

.stat-card .stat-label {
  font-size: 0.78rem;
}

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

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
}

thead th {
  background: var(--bg-elevated);
  padding: 0.75rem 1rem;
  text-align: left;
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--fg-dim);
  text-transform: uppercase;
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}

tbody tr {
  border-bottom: 1px solid var(--border);
  transition: background 0.1s;
}

tbody tr:last-child { border-bottom: none; }
tbody tr:hover { background: rgba(255,255,255,0.02); }

tbody td {
  padding: 0.875rem 1rem;
  color: var(--fg);
  vertical-align: top;
}

.td-muted { color: var(--fg-muted); font-size: 0.82rem; }
.td-dim { color: var(--fg-dim); font-size: 0.8rem; }

/* ── Badges ── */
.badge {
  display: inline-block;
  padding: 0.2rem 0.6rem;
  border-radius: 100px;
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.05em;
}

.badge-pending { background: rgba(251,191,36,0.15); color: var(--warning); }
.badge-approved { background: rgba(74,222,128,0.15); color: var(--success); }
.badge-sent { background: rgba(56,189,248,0.15); color: var(--accent); }
.badge-rejected { background: rgba(255,255,255,0.06); color: var(--fg-dim); }
.badge-error { background: rgba(248,113,113,0.15); color: var(--danger); }

/* ── Forms ── */
.form-group {
  margin-bottom: 1.25rem;
}

label {
  display: block;
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--fg-muted);
  margin-bottom: 0.4rem;
  font-family: 'Space Grotesk', sans-serif;
}

input[type="text"],
input[type="email"],
textarea,
select {
  width: 100%;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0.625rem 0.875rem;
  color: var(--fg);
  font-size: 0.9rem;
  font-family: 'Inter', sans-serif;
  transition: border-color 0.15s;
  outline: none;
}

input:focus, textarea:focus, select:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

textarea { resize: vertical; min-height: 100px; }

.form-hint {
  font-size: 0.78rem;
  color: var(--fg-dim);
  margin-top: 0.3rem;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

/* ── Modal / Drawer ── */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.7);
  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.open {
  opacity: 1;
  pointer-events: all;
}

.modal {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem;
  width: 100%;
  max-width: 600px;
  max-height: 90vh;
  overflow-y: auto;
  transform: translateY(16px);
  transition: transform 0.2s;
}

.modal-overlay.open .modal {
  transform: translateY(0);
}

.modal-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 1.5rem;
}

.modal-header h2 {
  font-size: 1.25rem;
  color: #fff;
}

.modal-close {
  background: none;
  border: none;
  color: var(--fg-dim);
  cursor: pointer;
  font-size: 1.25rem;
  padding: 0 0.25rem;
  line-height: 1;
}

.modal-close:hover { color: var(--fg); }

.modal-footer {
  display: flex;
  gap: 0.75rem;
  justify-content: flex-end;
  margin-top: 1.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
}

/* ── Draft Review ── */
.draft-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 1rem;
  overflow: hidden;
  transition: border-color 0.15s;
}

.draft-card:hover { border-color: rgba(56,189,248,0.2); }

.draft-card.approved { border-color: rgba(74,222,128,0.3); }
.draft-card.rejected { opacity: 0.5; }
.draft-card.sent { border-color: rgba(56,189,248,0.3); }

.draft-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--border);
  gap: 1rem;
}

.draft-prospect {
  font-weight: 600;
  color: #fff;
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.95rem;
}

.draft-company {
  font-size: 0.82rem;
  color: var(--fg-muted);
  margin-top: 0.1rem;
}

.draft-actions {
  display: flex;
  gap: 0.5rem;
  align-items: center;
  flex-shrink: 0;
}

.draft-body {
  padding: 1.25rem;
}

.draft-subject {
  font-size: 0.82rem;
  color: var(--fg-dim);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-family: 'Space Grotesk', sans-serif;
  margin-bottom: 0.4rem;
}

.draft-subject-text {
  font-weight: 600;
  color: var(--fg);
  margin-bottom: 0.875rem;
  font-size: 0.95rem;
}

.draft-email-body {
  font-size: 0.875rem;
  color: var(--fg-muted);
  line-height: 1.7;
  white-space: pre-wrap;
}

.draft-research {
  margin-top: 0.875rem;
  padding: 0.75rem;
  background: rgba(56,189,248,0.04);
  border-radius: var(--radius-sm);
  border: 1px solid rgba(56,189,248,0.1);
  font-size: 0.8rem;
  color: var(--fg-dim);
}

.draft-research strong {
  color: var(--accent);
  font-weight: 500;
}

/* ── Empty State ── */
.empty-state {
  text-align: center;
  padding: 4rem 2rem;
  color: var(--fg-muted);
}

.empty-state-icon {
  font-size: 3rem;
  margin-bottom: 1rem;
  opacity: 0.4;
}

.empty-state h3 {
  font-size: 1.1rem;
  color: var(--fg);
  margin-bottom: 0.5rem;
}

.empty-state p {
  font-size: 0.875rem;
  color: var(--fg-dim);
  max-width: 320px;
  margin: 0 auto 1.5rem;
}

/* ── Toast notifications ── */
.toast-container {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  z-index: 200;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  pointer-events: none;
}

.toast {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0.75rem 1rem;
  font-size: 0.875rem;
  color: var(--fg);
  max-width: 320px;
  opacity: 0;
  transform: translateY(8px);
  transition: all 0.2s;
  pointer-events: none;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.toast.visible {
  opacity: 1;
  transform: translateY(0);
}

.toast.success { border-color: rgba(74,222,128,0.4); }
.toast.error { border-color: rgba(248,113,113,0.4); }

/* ── Loading spinner ── */
.spinner {
  display: inline-block;
  width: 16px; height: 16px;
  border: 2px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
  vertical-align: middle;
}

@keyframes spin { to { transform: rotate(360deg); } }

/* ── Campaign page layout ── */
.campaign-detail {
  display: grid;
  grid-template-columns: 320px 1fr;
  gap: 1.5rem;
  align-items: start;
}

.research-panel {
  position: sticky;
  top: 2rem;
}

.research-running {
  text-align: center;
  padding: 2rem;
  color: var(--fg-muted);
}

.research-running .spinner {
  width: 32px; height: 32px;
  border-width: 3px;
  margin-bottom: 1rem;
  display: block;
  margin-left: auto;
  margin-right: auto;
}

/* ── Select all checkbox pattern ── */
.bulk-bar {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 0.75rem 1rem;
  background: var(--accent-glow);
  border: 1px solid rgba(56,189,248,0.2);
  border-radius: var(--radius-sm);
  margin-bottom: 1rem;
  font-size: 0.875rem;
  color: var(--accent);
}

.bulk-bar.hidden { display: none; }

/* ── Responsive ── */
@media (max-width: 1024px) {
  .stats-row { grid-template-columns: repeat(2, 1fr); }
  .campaign-detail { grid-template-columns: 1fr; }
  .research-panel { position: static; }
}

@media (max-width: 768px) {
  .sidebar { display: none; }
  .main { margin-left: 0; padding: 1.5rem; }
  .form-row { grid-template-columns: 1fr; }
}