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

:root {
  --bg: #0a0a0f;
  --surface: #12121a;
  --surface-hover: #1a1a25;
  --border: #1e1e2e;
  --accent: #6366f1;
  --accent-hover: #5558e6;
  --accent-glow: rgba(99, 102, 241, 0.15);
  --green: #22c55e;
  --green-bg: rgba(34, 197, 94, 0.08);
  --red: #ef4444;
  --red-bg: rgba(239, 68, 68, 0.08);
  --yellow: #eab308;
  --yellow-bg: rgba(234, 179, 8, 0.08);
  --text: #e4e4e7;
  --muted: #71717a;
  --white: #fafafa;
}

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

h1, h2, h3, h4, h5 {
  font-family: 'Space Grotesk', sans-serif;
}

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

/* Sidebar */
.sidebar {
  width: 240px;
  background: var(--surface);
  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-size: 1.3rem;
  font-weight: 700;
  color: var(--white);
  padding: 0 1.5rem;
  margin-bottom: 2rem;
  text-decoration: none;
  display: block;
}
.sidebar-logo span { color: var(--accent); }

.sidebar-nav {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 0 0.75rem;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.65rem 0.75rem;
  border-radius: 8px;
  color: var(--muted);
  text-decoration: none;
  font-size: 0.9rem;
  transition: all 0.15s;
  cursor: pointer;
  border: none;
  background: none;
  width: 100%;
  text-align: left;
}
.nav-item:hover { background: var(--surface-hover); color: var(--text); }
.nav-item.active { background: var(--accent-glow); color: var(--accent); }
.nav-item svg { width: 18px; height: 18px; flex-shrink: 0; }

.sidebar-footer {
  padding: 1rem 1.5rem;
  border-top: 1px solid var(--border);
}
.sidebar-footer a {
  color: var(--muted);
  text-decoration: none;
  font-size: 0.8rem;
}
.sidebar-footer a:hover { color: var(--text); }

/* 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-size: 1.8rem;
  color: var(--white);
  letter-spacing: -0.5px;
}

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

.stat-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.25rem;
}

.stat-card .label {
  font-size: 0.8rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 0.5rem;
}

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

.stat-card .value.accent { color: var(--accent); }
.stat-card .value.green { color: var(--green); }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.6rem 1.2rem;
  border-radius: 8px;
  font-family: 'DM Sans', sans-serif;
  font-size: 0.85rem;
  font-weight: 500;
  border: none;
  cursor: pointer;
  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(--surface);
  color: var(--text);
  border: 1px solid var(--border);
}
.btn-secondary:hover { background: var(--surface-hover); border-color: var(--muted); }

.btn-danger {
  background: var(--red-bg);
  color: var(--red);
  border: 1px solid rgba(239, 68, 68, 0.2);
}
.btn-danger:hover { background: rgba(239, 68, 68, 0.15); }

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

.btn-ghost {
  background: transparent;
  color: var(--muted);
  padding: 0.4rem 0.6rem;
}
.btn-ghost:hover { color: var(--text); background: var(--surface-hover); }

/* Cards & Tables */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
}

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

.card-header h3 {
  font-size: 1rem;
  color: var(--white);
}

.card-body { padding: 1.25rem; }

.table-wrapper { overflow-x: auto; }

table {
  width: 100%;
  border-collapse: collapse;
}

th {
  text-align: left;
  padding: 0.75rem 1.25rem;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--muted);
  border-bottom: 1px solid var(--border);
  font-weight: 500;
}

td {
  padding: 0.75rem 1.25rem;
  font-size: 0.85rem;
  border-bottom: 1px solid var(--border);
  color: var(--text);
}

tr:last-child td { border-bottom: none; }
tr:hover td { background: var(--surface-hover); }

/* Badges */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 0.2rem 0.6rem;
  border-radius: 100px;
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.3px;
}

.badge-green {
  background: var(--green-bg);
  color: var(--green);
  border: 1px solid rgba(34, 197, 94, 0.2);
}

.badge-yellow {
  background: var(--yellow-bg);
  color: var(--yellow);
  border: 1px solid rgba(234, 179, 8, 0.2);
}

.badge-red {
  background: var(--red-bg);
  color: var(--red);
  border: 1px solid rgba(239, 68, 68, 0.2);
}

.badge-muted {
  background: rgba(113, 113, 122, 0.1);
  color: var(--muted);
  border: 1px solid var(--border);
}

.badge-accent {
  background: var(--accent-glow);
  color: var(--accent);
  border: 1px solid rgba(99, 102, 241, 0.2);
}

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

.form-group label {
  display: block;
  font-size: 0.82rem;
  color: var(--muted);
  margin-bottom: 0.4rem;
  font-weight: 500;
}

.form-control {
  width: 100%;
  padding: 0.6rem 0.8rem;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  font-family: 'DM Sans', sans-serif;
  font-size: 0.9rem;
  transition: border-color 0.15s;
}

.form-control:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

.form-control::placeholder { color: var(--muted); }

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

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

/* Modal */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.7);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  backdrop-filter: blur(4px);
}

.modal {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  width: 90%;
  max-width: 560px;
  max-height: 90vh;
  overflow-y: auto;
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.25rem 1.5rem;
  border-bottom: 1px solid var(--border);
}

.modal-header h2 {
  font-size: 1.15rem;
  color: var(--white);
}

.modal-close {
  background: none;
  border: none;
  color: var(--muted);
  cursor: pointer;
  font-size: 1.2rem;
  padding: 0.25rem;
}
.modal-close:hover { color: var(--text); }

.modal-body { padding: 1.5rem; }

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

/* Email Preview */
.email-preview {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.5rem;
  margin-bottom: 1rem;
}

.email-preview .email-to {
  font-size: 0.8rem;
  color: var(--muted);
  margin-bottom: 0.5rem;
}

.email-preview .email-subject {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.1rem;
  color: var(--white);
  font-weight: 600;
  margin-bottom: 1rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--border);
}

.email-preview .email-body {
  font-size: 0.9rem;
  color: var(--text);
  line-height: 1.7;
  white-space: pre-wrap;
}

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

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

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

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

/* Loading Spinner */
.spinner {
  display: inline-block;
  width: 18px;
  height: 18px;
  border: 2px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
}

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

.loading-overlay {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  padding: 3rem;
  color: var(--muted);
  font-size: 0.9rem;
}

/* Toast */
.toast-container {
  position: fixed;
  top: 1.5rem;
  right: 1.5rem;
  z-index: 2000;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.toast {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 0.75rem 1.25rem;
  font-size: 0.85rem;
  color: var(--text);
  box-shadow: 0 8px 24px rgba(0,0,0,0.4);
  animation: slideIn 0.3s ease;
  max-width: 360px;
}

.toast.success { border-color: rgba(34, 197, 94, 0.3); }
.toast.error { border-color: rgba(239, 68, 68, 0.3); }

@keyframes slideIn {
  from { transform: translateX(100%); opacity: 0; }
  to { transform: translateX(0); opacity: 1; }
}

/* Prospect Card */
.prospect-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 1rem 1.25rem;
  margin-bottom: 0.75rem;
  transition: border-color 0.15s;
}
.prospect-card:hover { border-color: var(--accent); }

.prospect-card .prospect-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 0.5rem;
}

.prospect-card .prospect-name {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 600;
  color: var(--white);
  font-size: 0.95rem;
}

.prospect-card .prospect-role {
  font-size: 0.82rem;
  color: var(--muted);
}

.prospect-card .prospect-company {
  font-size: 0.82rem;
  color: var(--accent);
}

.prospect-card .prospect-notes {
  font-size: 0.82rem;
  color: var(--muted);
  margin-top: 0.5rem;
  font-style: italic;
}

.prospect-card .prospect-actions {
  display: flex;
  gap: 0.5rem;
  margin-top: 0.75rem;
}

/* Campaign Card */
.campaign-card {
  display: block;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.25rem;
  cursor: pointer;
  transition: all 0.15s;
  text-decoration: none;
  color: inherit;
}
.campaign-card:hover { border-color: var(--accent); transform: translateY(-1px); }

.campaign-card h3 {
  font-size: 1.05rem;
  color: var(--white);
  margin-bottom: 0.5rem;
}

.campaign-card .campaign-meta {
  display: flex;
  gap: 1rem;
  font-size: 0.8rem;
  color: var(--muted);
}

.campaign-card .campaign-meta span {
  display: flex;
  align-items: center;
  gap: 0.3rem;
}

.campaigns-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1rem;
}

/* Back button */
.back-link {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  color: var(--muted);
  text-decoration: none;
  font-size: 0.85rem;
  margin-bottom: 1rem;
  cursor: pointer;
}
.back-link:hover { color: var(--text); }

/* Responsive */
@media (max-width: 768px) {
  .sidebar {
    width: 60px;
    padding: 1rem 0;
  }
  .sidebar-logo { font-size: 0; padding: 0 0.5rem; }
  .sidebar-logo span { font-size: 1.2rem; }
  .nav-item span { display: none; }
  .main-content { margin-left: 60px; padding: 1rem; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .form-row { grid-template-columns: 1fr; }
  .campaigns-grid { grid-template-columns: 1fr; }
  .page-header { flex-direction: column; align-items: flex-start; gap: 1rem; }
}