/* Authentication Header Styles */
.auth-header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 15px 0;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.auth-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo h2 {
    margin: 0;
    font-size: 1.5rem;
    font-weight: 600;
}

.auth-section {
    display: flex;
    align-items: center;
}

.auth-form {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border-radius: 10px;
    padding: 25px;
    min-width: 300px;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.auth-form h3 {
    margin: 0 0 20px 0;
    text-align: center;
    font-size: 1.3rem;
    font-weight: 500;
}

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

.auth-form input {
    width: 100%;
    padding: 12px;
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: 6px;
    background: rgba(255, 255, 255, 0.1);
    color: white;
    font-size: 1rem;
    backdrop-filter: blur(10px);
    box-sizing: border-box;
}

.auth-form input::placeholder {
    color: rgba(255, 255, 255, 0.7);
}

.auth-form input:focus {
    outline: none;
    border-color: rgba(255, 255, 255, 0.6);
    background: rgba(255, 255, 255, 0.15);
}

.auth-btn {
    width: 100%;
    padding: 12px;
    background: rgba(255, 255, 255, 0.2);
    color: white;
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: 6px;
    cursor: pointer;
    font-size: 1rem;
    font-weight: 600;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
}

.auth-btn:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: translateY(-1px);
}

.auth-switch {
    text-align: center;
    margin: 15px 0 0 0;
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.8);
}

.auth-switch a {
    color: white;
    text-decoration: none;
    font-weight: 600;
}

.auth-switch a:hover {
    text-decoration: underline;
}

.user-info {
    display: flex;
    align-items: center;
    gap: 15px;
}

.user-details {
    display: flex;
    align-items: center;
    gap: 15px;
}

.user-details span {
    font-weight: 500;
    font-size: 1rem;
}

.logout-btn {
    padding: 8px 16px;
    background: rgba(255, 255, 255, 0.2);
    color: white;
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: 6px;
    cursor: pointer;
    font-size: 0.9rem;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
}

.logout-btn:hover {
    background: rgba(255, 255, 255, 0.3);
}

/* Loading Overlay */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    z-index: 9999;
    backdrop-filter: blur(5px);
}

.loading-spinner {
    width: 50px;
    height: 50px;
    border: 4px solid rgba(255, 255, 255, 0.3);
    border-top: 4px solid white;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-bottom: 20px;
}

.loading-overlay p {
    color: white;
    font-size: 1.1rem;
    font-weight: 500;
}

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

/* Utility Classes */
.hidden {
    display: none !important;
}

.display-none {
    display: none;
}

.display-block {
    display: block;
}

/* Update main content spacing */
#app-content {
    padding-top: 20px;
}

/* Mobile Responsive for Auth */
@media (max-width: 768px) {
    .auth-container {
        flex-direction: column;
        gap: 15px;
        padding: 0 15px;
    }
    
    .logo {
        order: 1;
    }
    
    .auth-section,
    .user-info {
        order: 2;
        width: 100%;
        justify-content: center;
    }
    
    .auth-form {
        min-width: 280px;
        padding: 20px;
    }
    
    .user-details {
        flex-direction: column;
        gap: 10px;
        text-align: center;
    }
}