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

:root {
  --bg-primary: #06080d;
  --bg-card: #0d1117;
  --bg-elevated: #161b22;
  --accent: #3b82f6;
  --accent-hover: #2563eb;
  --accent-glow: rgba(59, 130, 246, 0.15);
  --cyan: #22d3ee;
  --amber: #f59e0b;
  --green: #10b981;
  --red: #ef4444;
  --text-primary: #f0f6fc;
  --text-secondary: #8b949e;
  --text-muted: #484f58;
  --border: rgba(255,255,255,0.06);
  --border-hover: rgba(59,130,246,0.3);
}

body {
  font-family: 'DM Sans', sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
}

/* Layout */
.app-layout {
  display: flex;
  min-height: 100vh;
}

/* Sidebar */
.sidebar {
  width: 240px;
  background: var(--bg-card);
  border-right: 1px solid var(--border);
  padding: 1.5rem 0;
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  z-index: 100;
}

.sidebar-logo {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  font-size: 1.25rem;
  padding: 0 1.25rem 1.5rem;
  border-bottom: 1px solid var(--border);
  margin-bottom: 1rem;
  letter-spacing: -0.5px;
}
.sidebar-logo span { color: var(--accent); }

.sidebar-nav {
  list-style: none;
  padding: 0 0.75rem;
  flex: 1;
}

.sidebar-nav li {
  margin-bottom: 0.25rem;
}

.sidebar-nav a {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.65rem 0.75rem;
  color: var(--text-secondary);
  text-decoration: none;
  border-radius: 8px;
  font-size: 0.9rem;
  font-weight: 500;
  transition: all 0.15s;
}

.sidebar-nav a:hover {
  background: var(--bg-elevated);
  color: var(--text-primary);
}

.sidebar-nav a.active {
  background: var(--accent-glow);
  color: var(--accent);
  border: 1px solid rgba(59,130,246,0.2);
}

.sidebar-nav .nav-icon {
  font-size: 1.1rem;
  width: 20px;
  text-align: center;
}

.sidebar-bottom {
  padding: 1rem 1.25rem;
  border-top: 1px solid var(--border);
}

.sidebar-bottom a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.8rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.sidebar-bottom a:hover { color: var(--text-secondary); }

/* Main Content */
.main-content {
  flex: 1;
  margin-left: 240px;
  padding: 2rem;
  max-width: 1100px;
}

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

.page-header h1 {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.8rem;
  font-weight: 700;
  letter-spacing: -0.5px;
}

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

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.6rem 1.25rem;
  border-radius: 8px;
  font-size: 0.875rem;
  font-weight: 600;
  font-family: 'DM Sans', sans-serif;
  cursor: pointer;
  border: none;
  transition: all 0.15s;
  text-decoration: none;
}

.btn-primary {
  background: var(--accent);
  color: white;
}
.btn-primary:hover { background: var(--accent-hover); }
.btn-primary:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.btn-secondary {
  background: var(--bg-elevated);
  color: var(--text-primary);
  border: 1px solid var(--border);
}
.btn-secondary:hover { border-color: var(--border-hover); }

.btn-danger {
  background: rgba(239,68,68,0.1);
  color: var(--red);
  border: 1px solid rgba(239,68,68,0.2);
}
.btn-danger:hover { background: rgba(239,68,68,0.2); }

.btn-sm {
  padding: 0.4rem 0.85rem;
  font-size: 0.8rem;
}

.btn-ghost {
  background: transparent;
  color: var(--text-secondary);
  border: 1px solid var(--border);
}
.btn-ghost:hover {
  background: var(--bg-elevated);
  color: var(--text-primary);
}

/* Stat Cards */
.stats-grid {
  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: 12px;
  padding: 1.25rem 1.5rem;
}

.stat-card .stat-value {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 2rem;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: -1px;
}

.stat-card .stat-label {
  font-size: 0.8rem;
  color: var(--text-secondary);
  margin-top: 0.25rem;
}

/* Cards */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.5rem;
  margin-bottom: 1rem;
  transition: border-color 0.2s;
}
.card:hover { border-color: var(--border-hover); }

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

.card-title {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.1rem;
  font-weight: 600;
  letter-spacing: -0.3px;
}

.card-subtitle {
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-top: 0.25rem;
}

/* Status Badges */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 0.2rem 0.6rem;
  border-radius: 100px;
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.badge-draft { background: rgba(139,148,158,0.15); color: var(--text-secondary); }
.badge-researching, .badge-generating { background: rgba(59,130,246,0.15); color: var(--accent); }
.badge-ready, .badge-researched { background: rgba(34,211,238,0.15); color: var(--cyan); }
.badge-ready_to_send, .badge-email_generated { background: rgba(245,158,11,0.15); color: var(--amber); }
.badge-sending, .badge-sent, .badge-contacted { background: rgba(16,185,129,0.15); color: var(--green); }
.badge-replied { background: rgba(16,185,129,0.3); color: var(--green); }
.badge-bounced { background: rgba(239,68,68,0.15); color: var(--red); }
.badge-found { background: rgba(139,148,158,0.15); color: var(--text-secondary); }

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

.form-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 0.4rem;
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 0.65rem 0.85rem;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text-primary);
  font-family: 'DM Sans', sans-serif;
  font-size: 0.9rem;
  transition: border-color 0.15s;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--accent);
}

.form-group textarea {
  min-height: 80px;
  resize: vertical;
}

.form-group .form-hint {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 0.3rem;
}

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

/* Tables */
.data-table {
  width: 100%;
  border-collapse: collapse;
}

.data-table th {
  text-align: left;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--border);
}

.data-table td {
  padding: 0.85rem 1rem;
  font-size: 0.875rem;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
}

.data-table tr:hover td {
  background: var(--bg-elevated);
}

.data-table .company-cell {
  font-weight: 600;
  color: var(--text-primary);
}

.data-table .email-cell {
  color: var(--accent);
}

.data-table .score-cell {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 600;
}

/* Campaign List */
.campaign-card {
  cursor: pointer;
}

.campaign-meta {
  display: flex;
  gap: 1.5rem;
  margin-top: 0.75rem;
}

.campaign-meta-item {
  font-size: 0.8rem;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

.campaign-meta-item strong {
  color: var(--text-primary);
}

/* Email Preview */
.email-preview {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 1.25rem;
  margin-top: 0.75rem;
}

.email-preview .email-subject {
  font-weight: 600;
  font-size: 0.95rem;
  margin-bottom: 0.75rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--border);
}

.email-preview .email-body {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.7;
  white-space: pre-wrap;
}

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

.empty-state .empty-icon {
  font-size: 3rem;
  margin-bottom: 1rem;
  opacity: 0.5;
}

.empty-state h3 {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.2rem;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
}

.empty-state p {
  font-size: 0.9rem;
  max-width: 400px;
  margin: 0 auto 1.5rem;
}

/* Modal / Overlay */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.7);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: 2rem;
}

.modal {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  width: 100%;
  max-width: 560px;
  max-height: 85vh;
  overflow-y: auto;
  padding: 2rem;
}

.modal h2 {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 1.5rem;
  letter-spacing: -0.3px;
}

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

/* Loading */
.loading-spinner {
  display: inline-block;
  width: 16px;
  height: 16px;
  border: 2px solid rgba(255,255,255,0.3);
  border-top-color: white;
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
}

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

.loading-bar {
  height: 3px;
  background: var(--bg-elevated);
  border-radius: 3px;
  overflow: hidden;
  margin: 1rem 0;
}

.loading-bar-inner {
  height: 100%;
  background: linear-gradient(90deg, var(--accent), var(--cyan));
  border-radius: 3px;
  animation: loading-slide 1.5s ease-in-out infinite;
  width: 30%;
}

@keyframes loading-slide {
  0% { transform: translateX(-100%); }
  100% { transform: translateX(400%); }
}

/* Back button */
.back-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.85rem;
  margin-bottom: 1.25rem;
  cursor: pointer;
}
.back-link:hover { color: var(--text-primary); }

/* Score bar */
.score-bar {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.score-bar-track {
  flex: 1;
  height: 6px;
  background: var(--bg-elevated);
  border-radius: 3px;
  overflow: hidden;
  max-width: 60px;
}

.score-bar-fill {
  height: 100%;
  border-radius: 3px;
  transition: width 0.3s;
}

/* Prospect detail */
.prospect-detail-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.detail-item label {
  display: block;
  font-size: 0.75rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 0.25rem;
}

.detail-item .detail-value {
  font-size: 0.9rem;
  color: var(--text-primary);
}

/* Toast */
.toast {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 0.85rem 1.25rem;
  font-size: 0.875rem;
  color: var(--text-primary);
  z-index: 2000;
  animation: toast-in 0.3s ease;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.toast.success { border-color: rgba(16,185,129,0.4); }
.toast.error { border-color: rgba(239,68,68,0.4); }

@keyframes toast-in {
  from { transform: translateY(20px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

/* Responsive */
@media (max-width: 768px) {
  .sidebar {
    display: none;
  }
  .main-content {
    margin-left: 0;
    padding: 1.25rem;
  }
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .form-row {
    grid-template-columns: 1fr;
  }
  .prospect-detail-grid {
    grid-template-columns: 1fr;
  }
}