* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif; background: #f5f5f5; color: #333; }
header { background: #c0392b; color: white; padding: 16px 24px; display: flex; justify-content: space-between; align-items: center; }
.logo { font-size: 1.4rem; font-weight: bold; }
.user-info a { color: white; margin-left: 16px; text-decoration: none; }
main { max-width: 1200px; margin: 32px auto; padding: 0 20px; }
footer { text-align: center; padding: 24px; color: #888; }

.card { background: white; border-radius: 24px; padding: 24px; margin-bottom: 24px; box-shadow: 0 2px 8px rgba(0,0,0,0.05); }
.btn-primary { background: #c0392b; color: white; border: none; padding: 10px 24px; border-radius: 40px; cursor: pointer; font-size: 0.9rem; }
.btn-secondary { background: #e0e0e0; color: #333; border: none; padding: 8px 20px; border-radius: 40px; cursor: pointer; }
.btn-danger { background: #e74c3c; color: white; }

.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.5);
    backdrop-filter: blur(8px);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 10000;
}
.modal-container {
    background: white;
    border-radius: 24px;
    width: 90%;
    max-width: 500px;
    padding: 24px;
    box-shadow: 0 10px 25px rgba(0,0,0,0.2);
}
.modal-header { display: flex; justify-content: space-between; margin-bottom: 16px; }
.modal-close { cursor: pointer; font-size: 24px; }
.modal-footer { margin-top: 24px; display: flex; justify-content: flex-end; gap: 12px; }

table { width: 100%; border-collapse: collapse; }
th, td { padding: 12px; text-align: left; border-bottom: 1px solid #eee; }
.status-badge { display: inline-block; padding: 4px 12px; border-radius: 30px; font-size: 0.75rem; }
.status-pending { background: #f39c12; color: white; }
.status-approved { background: #27ae60; color: white; }
.status-rejected { background: #e74c3c; color: white; }

.tabs { display: flex; gap: 8px; margin-bottom: 24px; border-bottom: 2px solid #eee; }
.tab-btn { background: none; border: none; padding: 10px 20px; cursor: pointer; font-size: 1rem; color: #666; }
.tab-btn.active { color: #c0392b; border-bottom: 2px solid #c0392b; }
.tab-pane { display: none; }
.tab-pane.active { display: block; }

@media (max-width: 768px) { main { padding: 0 12px; } th, td { padding: 8px; } }