:root {
    --primary-blue: #0066cc;
    --secondary-blue: #0099ff;
    --ocean-green: #00cc99;
    --dark-blue: #003366;
    --light-blue: #f0f8ff;
    --error-red: #e74c3c;
    --warning-orange: #ff9900;
    --success-green: #00cc99;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

body {
    background-color: #f8fafc;
    color: #333;
    line-height: 1.6;
    min-height: 100vh;
}

/* Login Modal Styles */
.login-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 51, 102, 0.98);
    display: flex !important;
    justify-content: center;
    align-items: center;
    z-index: 9999;
    backdrop-filter: blur(5px);
    padding: 20px;
    overflow-y: auto;
}

.login-box {
    background: white;
    border-radius: 20px;
    padding: 30px;
    width: 100%;
    max-width: 500px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
    animation: slideIn 0.5s ease-out;
    max-height: 90vh;
    display: flex;
    flex-direction: column;
}

@keyframes slideIn {
    from { opacity: 0; transform: translateY(-30px); }
    to { opacity: 1; transform: translateY(0); }
}

.login-box h2 {
    color: var(--dark-blue);
    margin-bottom: 20px;
    text-align: center;
    font-size: 1.8rem;
    flex-shrink: 0;
}

.login-tabs {
    display: flex;
    margin-bottom: 20px;
    border-bottom: 2px solid #eee;
    flex-shrink: 0;
}

.login-tab {
    flex: 1;
    padding: 15px;
    text-align: center;
    background: none;
    border: none;
    font-size: 1.1rem;
    font-weight: 600;
    color: #666;
    cursor: pointer;
    transition: all 0.3s ease;
}

.login-tab.active {
    color: var(--primary-blue);
    border-bottom: 3px solid var(--primary-blue);
}

.form-container {
    display: none;
    flex: 1;
    overflow-y: auto;
    padding-right: 10px;
}

.form-container.active {
    display: block;
}

/* Custom scrollbar */
.form-container::-webkit-scrollbar {
    width: 6px;
}

.form-container::-webkit-scrollbar-track {
    background: #f1f1f1;
    border-radius: 3px;
}

.form-container::-webkit-scrollbar-thumb {
    background: #c1c1c1;
    border-radius: 3px;
}

.form-container::-webkit-scrollbar-thumb:hover {
    background: #a8a8a8;
}

.form-group {
    margin-bottom: 15px;
}

.form-group label {
    display: block;
    margin-bottom: 5px;
    color: var(--dark-blue);
    font-weight: 600;
    font-size: 0.9rem;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px;
    border: 2px solid #e1e5e9;
    border-radius: 8px;
    font-size: 0.95rem;
    transition: border-color 0.3s ease;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

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

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-blue);
    box-shadow: 0 0 0 3px rgba(0, 102, 204, 0.1);
}

.login-btn {
    width: 100%;
    padding: 15px;
    background: linear-gradient(135deg, var(--primary-blue), var(--secondary-blue));
    color: white;
    border: none;
    border-radius: 10px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    margin-top: 10px;
    flex-shrink: 0;
}

.login-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(0, 102, 204, 0.2);
}

.login-btn:disabled {
    opacity: 0.7;
    cursor: not-allowed;
    transform: none;
}

.error-message {
    color: var(--error-red);
    font-size: 0.9rem;
    margin-top: 5px;
    display: none;
}

.success-message {
    color: var(--success-green);
    font-size: 0.9rem;
    margin-top: 5px;
    display: none;
}

/* Loading spinner */
.spinner {
    border: 3px solid #f3f3f3;
    border-top: 3px solid var(--primary-blue);
    border-radius: 50%;
    width: 30px;
    height: 30px;
    animation: spin 1s linear infinite;
    margin: 10px auto;
    display: none;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* User info bar */
.user-info-bar {
    background: var(--dark-blue);
    color: white;
    padding: 12px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.user-welcome {
    font-size: 0.95rem;
}

.user-welcome strong {
    color: var(--ocean-green);
}

.logout-btn {
    background: var(--ocean-green);
    color: white;
    border: none;
    padding: 8px 20px;
    border-radius: 20px;
    cursor: pointer;
    font-weight: 600;
    transition: opacity 0.3s ease;
    text-decoration: none;
    display: inline-block;
}

.logout-btn:hover {
    opacity: 0.9;
}

/* Admin Panel (overridden by inline styles) */
.admin-panel {
    display: none;
}

.admin-panel h3 {
    color: var(--ocean-green);
    margin-bottom: 15px;
}

.admin-btn {
    background: var(--ocean-green);
    color: white;
    border: none;
    padding: 8px 15px;
    border-radius: 5px;
    cursor: pointer;
    margin: 5px;
}

.admin-btn:hover {
    opacity: 0.9;
}

.admin-btn.logout {
    background: var(--error-red);
}

.pending-users {
    background: white;
    border-radius: 10px;
    padding: 20px;
    margin-top: 20px;
}

.user-card {
    border: 1px solid #ddd;
    border-radius: 5px;
    padding: 15px;
    margin-bottom: 10px;
    background: #f9f9f9;
}

.user-card.approved {
    border-left: 4px solid var(--success-green);
}

.user-card.pending {
    border-left: 4px solid var(--warning-orange);
}

.user-card.rejected {
    border-left: 4px solid var(--error-red);
}

/* Print Styles */
@media print {
    .login-modal,
    .user-info-bar,
    .admin-panel,
    .brief-print-btn {
        display: none !important;
    }

    .main-content {
        display: block !important;
    }
}

/* Responsive Design */
@media (max-width: 768px) {
    .login-box {
        max-height: 95vh;
        padding: 20px;
        margin: 10px;
    }

    .login-box h2 {
        font-size: 1.5rem;
    }

    .login-tab {
        padding: 12px;
        font-size: 1rem;
    }

    .form-group input,
    .form-group select,
    .form-group textarea {
        padding: 10px;
    }

    .login-btn {
        padding: 12px;
    }

    .user-info-bar {
        flex-direction: column;
        gap: 10px;
        text-align: center;
        padding: 15px 20px;
    }

    .admin-panel {
        padding: 15px 10px;
    }

    .admin-btn {
        padding: 6px 12px;
        font-size: 0.9rem;
    }
}

@media (max-width: 480px) {
    .login-box {
        padding: 15px;
    }

    .form-group label {
        font-size: 0.85rem;
    }

    .form-group input,
    .form-group select,
    .form-group textarea {
        padding: 8px 10px;
        font-size: 0.85rem;
    }

    .login-btn {
        padding: 10px;
        font-size: 0.95rem;
    }
}