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

:root {
  --ink: #0a0a0a;
  --paper: #fafaf8;
  --accent: #1a5cff;
  --accent-soft: #e8efff;
  --accent-hover: #1248d4;
  --warm: #ff6b35;
  --warm-soft: #fff0ea;
  --green: #16a34a;
  --green-soft: #f0fdf4;
  --red: #dc2626;
  --red-soft: #fef2f2;
  --gray-50: #f9f9f7;
  --gray-100: #f4f4f2;
  --gray-200: #e8e8e4;
  --gray-300: #d4d4cf;
  --gray-400: #999;
  --gray-600: #666;
  --radius: 12px;
  --radius-sm: 8px;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.06);
  --shadow-md: 0 8px 24px rgba(0,0,0,0.08);
  --shadow-lg: 0 24px 48px rgba(0,0,0,0.06);
}

body {
  font-family: 'DM Sans', sans-serif;
  background: var(--paper);
  color: var(--ink);
  line-height: 1.6;
}

h1, h2, h3, h4 {
  font-family: 'Space Grotesk', sans-serif;
  line-height: 1.15;
}

/* NAV */
.app-nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 32px;
  border-bottom: 1px solid var(--gray-200);
  background: white;
  position: sticky;
  top: 0;
  z-index: 100;
}

.app-nav .logo {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  font-size: 22px;
  letter-spacing: -0.5px;
  text-decoration: none;
  color: var(--ink);
}

.app-nav .logo span { color: var(--accent); }

.nav-links {
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-link {
  font-size: 14px;
  font-weight: 500;
  color: var(--gray-600);
  text-decoration: none;
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  transition: all 0.15s;
}

.nav-link:hover, .nav-link.active {
  color: var(--ink);
  background: var(--gray-100);
}

.nav-link.active { font-weight: 600; }

.btn-nav-logout {
  font-size: 13px;
  color: var(--gray-400);
  background: none;
  border: 1px solid var(--gray-200);
  padding: 6px 14px;
  border-radius: 100px;
  cursor: pointer;
  transition: all 0.15s;
}

.btn-nav-logout:hover {
  color: var(--red);
  border-color: var(--red);
}

/* LAYOUT */
.page-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 40px 32px;
}

.page-header {
  margin-bottom: 32px;
}

.page-header h1 {
  font-size: 32px;
  font-weight: 700;
  letter-spacing: -1px;
  margin-bottom: 8px;
}

.page-header p {
  color: var(--gray-600);
  font-size: 16px;
}

/* CARDS */
.card {
  background: white;
  border: 1px solid var(--gray-200);
  border-radius: var(--radius);
  padding: 28px;
  box-shadow: var(--shadow-sm);
}

.card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
}

.card-header h3 {
  font-size: 16px;
  font-weight: 600;
}

/* STATS */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-bottom: 32px;
}

.stat-card {
  background: white;
  border: 1px solid var(--gray-200);
  border-radius: var(--radius);
  padding: 24px;
  text-align: center;
}

.stat-card .stat-value {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 36px;
  font-weight: 700;
  margin-bottom: 4px;
}

.stat-card .stat-label {
  font-size: 13px;
  color: var(--gray-400);
  text-transform: uppercase;
  letter-spacing: 1px;
}

/* BUTTONS */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: 'DM Sans', sans-serif;
  font-size: 14px;
  font-weight: 600;
  padding: 10px 20px;
  border-radius: var(--radius-sm);
  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 {
  background: var(--gray-300);
  cursor: not-allowed;
}

.btn-secondary {
  background: var(--gray-100);
  color: var(--ink);
  border: 1px solid var(--gray-200);
}

.btn-secondary:hover { background: var(--gray-200); }

.btn-warm {
  background: var(--warm);
  color: white;
}

.btn-warm:hover { background: #e55a28; }

.btn-green {
  background: var(--green);
  color: white;
}

.btn-green:hover { background: #14923f; }

.btn-sm {
  font-size: 13px;
  padding: 6px 14px;
}

.btn-outline {
  background: transparent;
  color: var(--accent);
  border: 1px solid var(--accent);
}

.btn-outline:hover {
  background: var(--accent-soft);
}

/* FORMS */
.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-size: 14px;
  font-weight: 500;
  margin-bottom: 6px;
  color: var(--ink);
}

.form-group small {
  display: block;
  font-size: 12px;
  color: var(--gray-400);
  margin-top: 4px;
}

input[type="text"],
input[type="email"],
input[type="password"],
input[type="number"],
input[type="tel"],
input[type="url"],
textarea,
select {
  width: 100%;
  padding: 10px 14px;
  font-family: 'DM Sans', sans-serif;
  font-size: 15px;
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-sm);
  background: white;
  color: var(--ink);
  transition: border-color 0.15s;
}

input:focus, textarea:focus, select:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}

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

/* STATUS BADGES */
.badge {
  display: inline-flex;
  align-items: center;
  font-size: 12px;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: 100px;
}

.badge-discovered { color: var(--gray-600); background: var(--gray-100); }
.badge-email_drafted { color: var(--accent); background: var(--accent-soft); }
.badge-outreach_sent { color: var(--warm); background: var(--warm-soft); }
.badge-replied { color: var(--accent); background: var(--accent-soft); }
.badge-booked { color: var(--green); background: var(--green-soft); }
.badge-draft { color: var(--gray-600); background: var(--gray-100); }
.badge-sent { color: var(--warm); background: var(--warm-soft); }
.badge-opened { color: var(--accent); background: var(--accent-soft); }

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

.data-table th {
  text-align: left;
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--gray-400);
  padding: 12px 16px;
  border-bottom: 1px solid var(--gray-200);
}

.data-table td {
  padding: 14px 16px;
  font-size: 14px;
  border-bottom: 1px solid var(--gray-100);
  vertical-align: middle;
}

.data-table tr:last-child td { border-bottom: none; }

.data-table tr:hover td { background: var(--gray-50); }

/* ALERTS */
.alert {
  padding: 14px 18px;
  border-radius: var(--radius-sm);
  font-size: 14px;
  margin-bottom: 20px;
}

.alert-error {
  background: var(--red-soft);
  color: var(--red);
  border: 1px solid #fecaca;
}

.alert-success {
  background: var(--green-soft);
  color: var(--green);
  border: 1px solid #bbf7d0;
}

.alert-info {
  background: var(--accent-soft);
  color: var(--accent);
  border: 1px solid #bfdbfe;
}

/* EMPTY STATE */
.empty-state {
  text-align: center;
  padding: 60px 20px;
  color: var(--gray-400);
}

.empty-state .icon {
  font-size: 48px;
  margin-bottom: 16px;
}

.empty-state h3 {
  font-size: 20px;
  color: var(--ink);
  margin-bottom: 8px;
}

.empty-state p {
  font-size: 15px;
  margin-bottom: 24px;
  max-width: 400px;
  margin-left: auto;
  margin-right: auto;
}

/* LOADING */
.spinner {
  display: inline-block;
  width: 20px;
  height: 20px;
  border: 2px solid var(--gray-200);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
}

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

.loading-overlay {
  display: none;
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(250,250,248,0.8);
  z-index: 200;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 16px;
}

.loading-overlay.active { display: flex; }

.loading-overlay .spinner {
  width: 36px;
  height: 36px;
  border-width: 3px;
}

/* MODAL */
.modal-backdrop {
  display: none;
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(0,0,0,0.4);
  z-index: 300;
  align-items: center;
  justify-content: center;
}

.modal-backdrop.active { display: flex; }

.modal {
  background: white;
  border-radius: var(--radius);
  padding: 32px;
  max-width: 600px;
  width: 90%;
  max-height: 80vh;
  overflow-y: auto;
  box-shadow: var(--shadow-lg);
}

.modal h3 {
  font-size: 20px;
  margin-bottom: 16px;
}

.modal-actions {
  display: flex;
  gap: 12px;
  justify-content: flex-end;
  margin-top: 24px;
}

/* RESPONSIVE */
@media (max-width: 768px) {
  .app-nav { padding: 12px 16px; }
  .nav-links { gap: 4px; }
  .nav-link { padding: 6px 10px; font-size: 13px; }
  .page-container { padding: 24px 16px; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 12px; }
  .stat-card .stat-value { font-size: 28px; }
  .data-table { display: block; overflow-x: auto; }
}

@media (max-width: 480px) {
  .stats-grid { grid-template-columns: 1fr; }
}