/* ULM Logbook CSS */
:root {
    --ulm-primary: #2c5282;
    --ulm-primary-dark: #1e3a5f;
    --ulm-success: #38a169;
    --ulm-warning: #d69e2e;
    --ulm-danger: #e53e3e;
    --ulm-gray-100: #f7fafc;
    --ulm-gray-200: #edf2f7;
    --ulm-gray-300: #e2e8f0;
    --ulm-gray-500: #a0aec0;
    --ulm-gray-600: #718096;
    --ulm-gray-700: #4a5568;
    --ulm-gray-800: #2d3748;
    --ulm-radius: 8px;
    --ulm-shadow: 0 2px 4px rgba(0,0,0,0.1);
}
.ulm-logbook-container { font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif; max-width: 1200px; margin: 0 auto; padding: 20px; color: var(--ulm-gray-800); }
.ulm-logbook-container * { box-sizing: border-box; }
.ulm-hidden { display: none !important; }

/* Auth */
.ulm-auth-wrapper { min-height: 60vh; display: flex; align-items: center; justify-content: center; }
.ulm-auth-card { background: #fff; border-radius: var(--ulm-radius); box-shadow: var(--ulm-shadow); padding: 40px; max-width: 400px; width: 100%; }
.ulm-auth-header { text-align: center; margin-bottom: 30px; }
.ulm-logo { font-size: 48px; margin-bottom: 10px; }
.ulm-auth-header h1 { margin: 0 0 10px; color: var(--ulm-primary); font-size: 24px; }
.ulm-auth-header p { margin: 0; color: var(--ulm-gray-600); }
.ulm-auth-divider { display: flex; align-items: center; margin: 20px 0; }
.ulm-auth-divider::before, .ulm-auth-divider::after { content: ''; flex: 1; border-bottom: 1px solid var(--ulm-gray-300); }
.ulm-auth-divider span { padding: 0 15px; color: var(--ulm-gray-500); font-size: 14px; }
.ulm-auth-toggle { text-align: center; margin-top: 15px; }
.ulm-link { background: none; border: none; color: var(--ulm-primary); cursor: pointer; text-decoration: underline; }

/* Forms */
.ulm-form-group { margin-bottom: 15px; }
.ulm-form-group label { display: block; margin-bottom: 5px; font-weight: 500; font-size: 14px; color: var(--ulm-gray-700); }
.ulm-form-group input, .ulm-form-group select, .ulm-form-group textarea, .ulm-input, .ulm-select {
    width: 100%; padding: 10px 12px; border: 1px solid var(--ulm-gray-300); border-radius: var(--ulm-radius); font-size: 14px;
}
.ulm-form-group input:focus, .ulm-form-group select:focus, .ulm-form-group textarea:focus {
    outline: none; border-color: var(--ulm-primary); box-shadow: 0 0 0 3px rgba(44,82,130,0.1);
}
.ulm-form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 15px; }
.ulm-form-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 15px; }
.ulm-form-section { margin-bottom: 20px; padding-bottom: 15px; border-bottom: 1px solid var(--ulm-gray-200); }
.ulm-form-section h4 { margin: 0 0 15px; color: var(--ulm-primary); font-size: 13px; text-transform: uppercase; }
.ulm-form-actions { text-align: center; margin-top: 20px; }
.ulm-checkbox-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 8px; }
.ulm-checkbox { display: flex; align-items: center; padding: 8px; background: var(--ulm-gray-100); border-radius: 4px; cursor: pointer; font-size: 13px; }
.ulm-checkbox input { margin-right: 8px; }

/* Buttons */
.ulm-btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 10px 20px; border: none; border-radius: var(--ulm-radius); font-size: 14px; font-weight: 500; cursor: pointer; transition: all 0.2s; }
.ulm-btn-primary { background: var(--ulm-primary); color: #fff; }
.ulm-btn-primary:hover { background: var(--ulm-primary-dark); }
.ulm-btn-secondary { background: var(--ulm-gray-600); color: #fff; }
.ulm-btn-outline { background: transparent; border: 1px solid var(--ulm-gray-300); color: var(--ulm-gray-700); }
.ulm-btn-danger { background: var(--ulm-danger); color: #fff; }
.ulm-btn-block { width: 100%; }
.ulm-btn-lg { padding: 14px 28px; font-size: 16px; }
.ulm-btn-sm { padding: 6px 12px; font-size: 12px; }
.ulm-btn-loader { width: 16px; height: 16px; border: 2px solid transparent; border-top-color: currentColor; border-radius: 50%; animation: spin 0.8s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

/* Header */
.ulm-header { display: flex; align-items: center; justify-content: space-between; padding: 15px 20px; background: #fff; border-radius: var(--ulm-radius); box-shadow: var(--ulm-shadow); margin-bottom: 20px; flex-wrap: wrap; gap: 10px; }
.ulm-header-left { display: flex; align-items: center; gap: 10px; }
.ulm-header-logo { font-size: 28px; }
.ulm-header h1 { margin: 0; font-size: 18px; color: var(--ulm-primary); }
.ulm-header-right { display: flex; align-items: center; gap: 15px; }
.ulm-user-info { color: var(--ulm-gray-600); font-size: 14px; }

/* Nav */
.ulm-nav { display: flex; gap: 5px; background: #fff; padding: 8px; border-radius: var(--ulm-radius); box-shadow: var(--ulm-shadow); margin-bottom: 20px; overflow-x: auto; }
.ulm-nav-item { padding: 10px 16px; background: transparent; border: none; border-radius: 6px; font-size: 14px; cursor: pointer; white-space: nowrap; color: var(--ulm-gray-600); }
.ulm-nav-item:hover { background: var(--ulm-gray-100); }
.ulm-nav-item.active { background: var(--ulm-primary); color: #fff; }

/* Alerts */
.ulm-alerts { margin-bottom: 20px; }
.ulm-alert { display: flex; align-items: center; gap: 10px; padding: 12px 16px; border-radius: var(--ulm-radius); margin-bottom: 10px; font-size: 14px; }
.ulm-alert-warning { background: #fefcbf; border: 1px solid #d69e2e; color: #744210; }
.ulm-alert-danger { background: #fed7d7; border: 1px solid #e53e3e; color: #742a2a; }

/* Stats */
.ulm-stats-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 15px; margin-bottom: 20px; }
.ulm-stat-card { display: flex; align-items: center; gap: 15px; padding: 20px; background: #fff; border-radius: var(--ulm-radius); box-shadow: var(--ulm-shadow); }
.ulm-stat-icon { font-size: 32px; }
.ulm-stat-value { font-size: 28px; font-weight: 700; color: var(--ulm-primary); }
.ulm-stat-label { font-size: 13px; color: var(--ulm-gray-500); }

/* Cards */
.ulm-card { background: #fff; border-radius: var(--ulm-radius); box-shadow: var(--ulm-shadow); padding: 20px; margin-bottom: 20px; }
.ulm-card h3 { margin: 0 0 15px; font-size: 16px; color: var(--ulm-gray-700); border-bottom: 1px solid var(--ulm-gray-200); padding-bottom: 10px; }
.ulm-dashboard-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 20px; margin-bottom: 20px; }
.ulm-empty { color: var(--ulm-gray-500); text-align: center; padding: 20px; font-style: italic; }

/* Class stats */
.ulm-class-stat-item { display: flex; justify-content: space-between; padding: 10px; background: var(--ulm-gray-100); border-radius: 4px; margin-bottom: 8px; }
.ulm-class-stat-name { font-weight: 500; }
.ulm-class-stat-value { color: var(--ulm-primary); font-weight: 600; }

/* Recent flights */
.ulm-recent-flight-item { display: flex; justify-content: space-between; padding: 10px; background: var(--ulm-gray-100); border-radius: 4px; margin-bottom: 8px; font-size: 13px; }

/* Actions */
.ulm-actions { display: flex; gap: 15px; flex-wrap: wrap; }

/* Flights list */
.ulm-tab-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 20px; flex-wrap: wrap; gap: 10px; }
.ulm-tab-header h2 { margin: 0; }
.ulm-flights-filters { display: flex; gap: 15px; margin-bottom: 20px; flex-wrap: wrap; }
.ulm-flights-filters .ulm-input { max-width: 250px; }
.ulm-flights-filters .ulm-select { max-width: 200px; }
.ulm-flights-list { background: #fff; border-radius: var(--ulm-radius); box-shadow: var(--ulm-shadow); }
.ulm-flight-item { display: grid; grid-template-columns: 100px 1fr 150px 80px 100px; align-items: center; padding: 12px 15px; border-bottom: 1px solid var(--ulm-gray-200); gap: 10px; }
.ulm-flight-item:last-child { border-bottom: none; }
.ulm-flight-date { font-weight: 600; color: var(--ulm-primary); }
.ulm-flight-route { display: flex; align-items: center; gap: 5px; }
.ulm-flight-route-arrow { color: var(--ulm-gray-400); }
.ulm-flight-aircraft { color: var(--ulm-gray-600); font-size: 13px; }
.ulm-flight-time { font-weight: 600; }
.ulm-flight-actions { display: flex; gap: 5px; }

/* Tabs */
.ulm-tab { display: none; }
.ulm-tab.active { display: block; }

/* Modal */
.ulm-modal { position: fixed; inset: 0; z-index: 9999; display: flex; align-items: center; justify-content: center; padding: 20px; }
.ulm-modal-backdrop { position: absolute; inset: 0; background: rgba(0,0,0,0.5); }
.ulm-modal-content { position: relative; background: #fff; border-radius: var(--ulm-radius); max-width: 600px; width: 100%; max-height: 90vh; overflow: hidden; display: flex; flex-direction: column; }
.ulm-modal-sm { max-width: 400px; }
.ulm-modal-header { display: flex; justify-content: space-between; align-items: center; padding: 15px 20px; border-bottom: 1px solid var(--ulm-gray-200); }
.ulm-modal-header h2 { margin: 0; font-size: 18px; }
.ulm-modal-close { background: none; border: none; font-size: 24px; cursor: pointer; color: var(--ulm-gray-500); }
.ulm-modal-body { padding: 20px; overflow-y: auto; flex: 1; }
.ulm-modal-footer { display: flex; justify-content: flex-end; gap: 10px; padding: 15px 20px; border-top: 1px solid var(--ulm-gray-200); background: var(--ulm-gray-100); }

/* Toast */
.ulm-toast-container { position: fixed; bottom: 20px; right: 20px; z-index: 10000; }
.ulm-toast { padding: 12px 20px; border-radius: var(--ulm-radius); margin-top: 10px; animation: slideIn 0.3s; }
@keyframes slideIn { from { transform: translateX(100%); opacity: 0; } }
.ulm-toast-success { background: var(--ulm-success); color: #fff; }
.ulm-toast-error { background: var(--ulm-danger); color: #fff; }
.ulm-toast-warning { background: var(--ulm-warning); color: #fff; }

/* Message */
.ulm-message { padding: 12px; border-radius: var(--ulm-radius); margin-bottom: 15px; font-size: 14px; }
.ulm-message-error { background: #fed7d7; color: #742a2a; }
.ulm-message-success { background: #c6f6d5; color: #22543d; }

/* Responsive */
@media (max-width: 768px) {
    .ulm-flight-item { grid-template-columns: 1fr 1fr; }
    .ulm-form-row { grid-template-columns: 1fr; }
}

/* Admin badge */
.ulm-admin-badge { background: #dc3545; color: #fff; padding: 3px 8px; border-radius: 4px; font-size: 11px; font-weight: bold; margin-left: 10px; }

/* Admin stats row */
.ulm-admin-stats-row { display: flex; gap: 20px; margin-bottom: 20px; flex-wrap: wrap; }
.ulm-admin-stat { background: linear-gradient(135deg, #2c5282, #4299e1); color: #fff; padding: 20px 30px; border-radius: var(--ulm-radius); text-align: center; min-width: 150px; }
.ulm-admin-stat-value { font-size: 32px; font-weight: 700; display: block; }
.ulm-admin-stat-label { font-size: 13px; opacity: 0.9; }

/* Admin toolbar */
.ulm-admin-toolbar { display: flex; gap: 10px; margin-bottom: 20px; flex-wrap: wrap; }

/* Admin pilots list */
.ulm-admin-pilots-list { max-height: 500px; overflow-y: auto; }
.ulm-admin-pilot-item { display: grid; grid-template-columns: 1fr 1fr 100px 80px 150px; align-items: center; padding: 12px 15px; border-bottom: 1px solid var(--ulm-gray-200); gap: 10px; }
.ulm-admin-pilot-item:hover { background: var(--ulm-gray-100); }
.ulm-admin-pilot-name { font-weight: 600; color: var(--ulm-primary); }
.ulm-admin-pilot-email { color: var(--ulm-gray-600); font-size: 13px; }
.ulm-admin-pilot-stats { font-size: 13px; color: var(--ulm-gray-600); }
.ulm-admin-pilot-actions { display: flex; gap: 5px; }

/* Pilot details in modal */
.ulm-pilot-detail-section { margin-bottom: 20px; }
.ulm-pilot-detail-section h4 { margin: 0 0 10px; color: var(--ulm-primary); font-size: 14px; text-transform: uppercase; border-bottom: 1px solid var(--ulm-gray-200); padding-bottom: 5px; }
.ulm-pilot-detail-grid { display: grid; grid-template-columns: 140px 1fr; gap: 8px; font-size: 14px; }
.ulm-pilot-detail-label { color: var(--ulm-gray-600); font-weight: 500; }
.ulm-pilot-flights-table { width: 100%; border-collapse: collapse; font-size: 12px; margin-top: 10px; }
.ulm-pilot-flights-table th, .ulm-pilot-flights-table td { padding: 8px; text-align: left; border-bottom: 1px solid var(--ulm-gray-200); }
.ulm-pilot-flights-table th { background: var(--ulm-gray-100); font-weight: 600; }

/* Modal large */
.ulm-modal-lg { max-width: 800px; }

@media (max-width: 600px) {
    .ulm-admin-pilot-item { grid-template-columns: 1fr; }
    .ulm-admin-stats-row { flex-direction: column; }
}