/* Social Scheduler - Main Styles */
:root {
  --primary: #4f46e5;
  --primary-dark: #3730a3;
  --secondary: #7c3aed;
  --success: #22c55e;
  --warning: #f59e0b;
  --danger: #ef4444;
  --info: #3b82f6;
  --gray-50: #f9fafb;
  --gray-100: #f3f4f6;
  --gray-200: #e5e7eb;
  --gray-300: #d1d5db;
  --gray-400: #9ca3af;
  --gray-500: #6b7280;
  --gray-600: #4b5563;
  --gray-700: #374151;
  --gray-800: #1f2937;
  --gray-900: #111827;
  --x-color: #1da1f2;
  --ig-color: #e4405f;
  --fb-color: #1877f2;
  --threads-color: #000000;
  --linkedin-color: #0a66c2;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--gray-50);
  color: var(--gray-800);
  line-height: 1.5;
}

/* Layout */
.app-container { display: flex; min-height: 100vh; }
.sidebar {
  width: 240px;
  background: var(--gray-900);
  color: #fff;
  position: fixed;
  height: 100vh;
  overflow-y: auto;
  z-index: 100;
}
.sidebar-header {
  padding: 20px;
  border-bottom: 1px solid var(--gray-700);
}
.sidebar-header h1 { font-size: 1.25rem; font-weight: 700; }
.sidebar-header p { font-size: 0.75rem; color: var(--gray-400); margin-top: 4px; }
.nav-menu { list-style: none; padding: 12px 0; }
.nav-item { padding: 0; }
.nav-item a {
  display: flex; align-items: center; gap: 12px;
  padding: 12px 20px;
  color: var(--gray-300);
  text-decoration: none;
  transition: all 0.2s;
  cursor: pointer;
}
.nav-item a:hover, .nav-item.active a {
  background: var(--gray-800);
  color: #fff;
}
.nav-item.active a { border-left: 3px solid var(--primary); }
.main-content {
  flex: 1;
  margin-left: 240px;
  padding: 24px;
  min-height: 100vh;
}

/* Cards */
.card {
  background: #fff;
  border-radius: 12px;
  box-shadow: 0 1px 3px rgba(0,0,0,0.1);
  padding: 20px;
  margin-bottom: 20px;
}
.card-header {
  display: flex; justify-content: space-between; align-items: center;
  margin-bottom: 16px;
}
.card-title { font-size: 1.125rem; font-weight: 600; }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 10px 20px;
  border-radius: 8px;
  border: none;
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s;
}
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-dark); }
.btn-secondary { background: var(--gray-200); color: var(--gray-700); }
.btn-secondary:hover { background: var(--gray-300); }
.btn-success { background: var(--success); color: #fff; }
.btn-danger { background: var(--danger); color: #fff; }
.btn-sm { padding: 6px 12px; font-size: 0.75rem; }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }

/* Forms */
.form-group { margin-bottom: 16px; }
.form-label { display: block; font-size: 0.875rem; font-weight: 500; margin-bottom: 6px; }
.form-input, .form-textarea, .form-select {
  width: 100%;
  padding: 10px 14px;
  border: 1px solid var(--gray-300);
  border-radius: 8px;
  font-size: 0.875rem;
  transition: border-color 0.2s;
}
.form-input:focus, .form-textarea:focus, .form-select:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(79,70,229,0.1);
}
.form-textarea { min-height: 120px; resize: vertical; }

/* Platform badges */
.platform-badge {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 4px 10px;
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 500;
}
.platform-x { background: rgba(29,161,242,0.1); color: var(--x-color); }
.platform-instagram { background: rgba(228,64,95,0.1); color: var(--ig-color); }
.platform-facebook { background: rgba(24,119,242,0.1); color: var(--fb-color); }
.platform-threads { background: rgba(0,0,0,0.08); color: var(--threads-color); }
.platform-linkedin { background: rgba(10,102,194,0.1); color: var(--linkedin-color); }

/* Status indicators */
.status-badge {
  display: inline-flex; align-items: center; gap: 4px;
  padding: 4px 10px;
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 500;
}
.status-pending { background: rgba(59,130,246,0.1); color: var(--info); }
.status-publishing { background: rgba(124,58,237,0.1); color: var(--secondary); }
.status-success { background: rgba(34,197,94,0.1); color: var(--success); }
.status-failed { background: rgba(239,68,68,0.1); color: var(--danger); }
.status-simulated { background: rgba(156,163,175,0.1); color: var(--gray-500); }

/* Calendar */
.calendar-grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 1px;
  background: var(--gray-200);
  border-radius: 12px;
  overflow: hidden;
}
.calendar-header {
  background: var(--gray-100);
  padding: 12px;
  text-align: center;
  font-weight: 600;
  font-size: 0.875rem;
}
.calendar-day {
  background: #fff;
  min-height: 100px;
  padding: 8px;
  cursor: pointer;
  transition: background 0.2s;
  position: relative;
}
.calendar-day:hover { background: var(--gray-50); }
.calendar-day-number {
  font-size: 0.875rem;
  font-weight: 500;
  margin-bottom: 4px;
}
.calendar-day.other-month { color: var(--gray-400); background: var(--gray-50); }
.calendar-day.today .calendar-day-number {
  background: var(--primary);
  color: #fff;
  width: 28px; height: 28px;
  display: flex; align-items: center; justify-content: center;
  border-radius: 50%;
}
.calendar-events { display: flex; flex-direction: column; gap: 2px; }
.calendar-event {
  font-size: 0.6875rem;
  padding: 2px 6px;
  border-radius: 4px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.calendar-event.pending { background: rgba(59,130,246,0.1); color: var(--info); border-left: 2px solid var(--info); }
.calendar-event.success { background: rgba(34,197,94,0.1); color: var(--success); border-left: 2px solid var(--success); }
.calendar-event.failed { background: rgba(239,68,68,0.1); color: var(--danger); border-left: 2px solid var(--danger); }
.calendar-event.simulated { background: rgba(156,163,175,0.1); color: var(--gray-500); border-left: 2px dashed var(--gray-400); }

/* Week view */
.week-view {
  display: grid;
  grid-template-columns: 60px repeat(7, 1fr);
  gap: 1px;
  background: var(--gray-200);
  border-radius: 12px;
  overflow: hidden;
}
.week-time-slot {
  background: #fff;
  padding: 4px 8px;
  font-size: 0.75rem;
  color: var(--gray-500);
  min-height: 50px;
  display: flex; align-items: center; justify-content: center;
}
.week-day-header {
  background: var(--gray-100);
  padding: 12px;
  text-align: center;
  font-weight: 600;
}
.week-cell {
  background: #fff;
  min-height: 50px;
  padding: 4px;
  position: relative;
}

/* Modal */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.5);
  display: flex; align-items: center; justify-content: center;
  z-index: 1000;
  padding: 20px;
}
.modal {
  background: #fff;
  border-radius: 16px;
  max-width: 700px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
}
.modal-header {
  padding: 20px;
  border-bottom: 1px solid var(--gray-200);
  display: flex; justify-content: space-between; align-items: center;
}
.modal-body { padding: 20px; }
.modal-footer {
  padding: 16px 20px;
  border-top: 1px solid var(--gray-200);
  display: flex; justify-content: flex-end; gap: 12px;
}

/* Platform tabs */
.platform-tabs {
  display: flex; gap: 4px;
  border-bottom: 1px solid var(--gray-200);
  margin-bottom: 16px;
}
.platform-tab {
  padding: 10px 16px;
  border: none;
  background: none;
  font-size: 0.875rem;
  cursor: pointer;
  border-bottom: 2px solid transparent;
  transition: all 0.2s;
}
.platform-tab.active { border-bottom-color: var(--primary); color: var(--primary); font-weight: 600; }
.platform-tab:hover { color: var(--primary); }

/* Platform toggle */
.platform-toggle {
  display: flex; align-items: center; gap: 12px;
  padding: 12px;
  border: 1px solid var(--gray-200);
  border-radius: 8px;
  margin-bottom: 8px;
  cursor: pointer;
  transition: all 0.2s;
}
.platform-toggle:hover { border-color: var(--primary); }
.platform-toggle.selected { border-color: var(--primary); background: rgba(79,70,229,0.05); }
.platform-toggle input[type="checkbox"] { width: 20px; height: 20px; accent-color: var(--primary); }

/* Login */
.login-page {
  display: flex; align-items: center; justify-content: center;
  min-height: 100vh;
  background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
}
.login-card {
  background: #fff;
  padding: 40px;
  border-radius: 16px;
  box-shadow: 0 20px 60px rgba(0,0,0,0.2);
  width: 100%; max-width: 400px;
  text-align: center;
}
.login-card h2 { margin-bottom: 8px; }
.login-card p { color: var(--gray-500); margin-bottom: 24px; }
.pin-inputs {
  display: flex; gap: 12px;
  justify-content: center;
  margin: 24px 0;
}
.pin-input {
  width: 56px; height: 64px;
  font-size: 1.5rem;
  text-align: center;
  border: 2px solid var(--gray-300);
  border-radius: 12px;
  transition: border-color 0.2s;
}
.pin-input:focus { border-color: var(--primary); outline: none; }

/* Analytics */
.analytics-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 16px;
}
.metric-card {
  background: #fff;
  padding: 20px;
  border-radius: 12px;
  box-shadow: 0 1px 3px rgba(0,0,0,0.1);
}
.metric-value { font-size: 2rem; font-weight: 700; color: var(--primary); }
.metric-label { font-size: 0.875rem; color: var(--gray-500); margin-top: 4px; }
.metric-change {
  font-size: 0.75rem;
  margin-top: 8px;
  padding: 4px 8px;
  border-radius: 4px;
  display: inline-block;
}
.metric-change.up { background: rgba(34,197,94,0.1); color: var(--success); }
.metric-change.down { background: rgba(239,68,68,0.1); color: var(--danger); }

/* Platform cards */
.platform-card {
  display: flex; align-items: center; gap: 16px;
  padding: 16px;
  background: #fff;
  border-radius: 12px;
  box-shadow: 0 1px 3px rgba(0,0,0,0.1);
  margin-bottom: 12px;
}
.platform-icon {
  width: 48px; height: 48px;
  border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.5rem;
  color: #fff;
}
.platform-icon.x { background: var(--x-color); }
.platform-icon.instagram { background: var(--ig-color); }
.platform-icon.facebook { background: var(--fb-color); }
.platform-icon.threads { background: var(--threads-color); }
.platform-icon.linkedin { background: var(--linkedin-color); }
.platform-info { flex: 1; }
.platform-info h4 { font-size: 1rem; font-weight: 600; }
.platform-info p { font-size: 0.75rem; color: var(--gray-500); }

/* Knowledge base */
.kb-item {
  padding: 16px;
  background: #fff;
  border-radius: 12px;
  box-shadow: 0 1px 3px rgba(0,0,0,0.1);
  margin-bottom: 12px;
}
.kb-item h4 { font-size: 1rem; font-weight: 600; margin-bottom: 4px; }
.kb-item .kb-category {
  display: inline-block;
  padding: 2px 8px;
  background: var(--gray-100);
  border-radius: 4px;
  font-size: 0.75rem;
  color: var(--gray-500);
  margin-bottom: 8px;
}
.kb-item p { font-size: 0.875rem; color: var(--gray-600); }

/* Queue list */
.queue-item {
  display: flex; align-items: center; gap: 16px;
  padding: 16px;
  background: #fff;
  border-radius: 12px;
  box-shadow: 0 1px 3px rgba(0,0,0,0.1);
  margin-bottom: 12px;
}
.queue-content { flex: 1; }
.queue-content h4 { font-size: 0.875rem; font-weight: 600; }
.queue-content p { font-size: 0.75rem; color: var(--gray-500); }

/* Toast notifications */
.toast-container {
  position: fixed;
  top: 20px; right: 20px;
  z-index: 2000;
  display: flex; flex-direction: column; gap: 8px;
}
.toast {
  padding: 12px 20px;
  border-radius: 8px;
  color: #fff;
  font-size: 0.875rem;
  animation: slideIn 0.3s ease;
}
.toast.success { background: var(--success); }
.toast.error { background: var(--danger); }
.toast.info { background: var(--info); }
@keyframes slideIn {
  from { transform: translateX(100%); opacity: 0; }
  to { transform: translateX(0); opacity: 1; }
}

/* Responsive */
@media (max-width: 768px) {
  .sidebar { width: 60px; }
  .sidebar-header h1, .nav-item span { display: none; }
  .main-content { margin-left: 60px; }
  .calendar-grid { grid-template-columns: repeat(7, 1fr); }
}

/* Loading */
.loading { text-align: center; padding: 40px; color: var(--gray-500); }
.spinner {
  display: inline-block;
  width: 32px; height: 32px;
  border: 3px solid var(--gray-200);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* Demo watermark */
.demo-watermark {
  position: fixed;
  bottom: 10px; right: 10px;
  background: rgba(0,0,0,0.6);
  color: #fff;
  padding: 4px 10px;
  border-radius: 4px;
  font-size: 0.6875rem;
  z-index: 1000;
}

/* AI content suggestion */
.ai-suggestion {
  background: linear-gradient(135deg, rgba(124,58,237,0.05), rgba(79,70,229,0.05));
  border: 1px dashed var(--secondary);
  border-radius: 12px;
  padding: 16px;
  margin-top: 16px;
}
.ai-suggestion h5 {
  color: var(--secondary);
  font-size: 0.875rem;
  margin-bottom: 8px;
}
.ai-suggestion p { font-size: 0.875rem; color: var(--gray-600); }