/* SCGA Logo Styles */
.scga-logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    text-decoration: none;
    color: var(--text-primary);
    transition: all 0.3s ease;
    padding: 0.5rem;
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.scga-logo:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    background: rgba(255, 255, 255, 0.15);
}

.logo-icon {
    width: 48px;
    height: 48px;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary-color), var(--warning-color));
    border-radius: 12px;
    box-shadow: var(--shadow-md);
    overflow: hidden;
}

.logo-icon::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(45deg, transparent 30%, rgba(255, 255, 255, 0.2) 50%, transparent 70%);
    animation: shine 3s ease-in-out infinite;
}

@keyframes shine {
    0%, 100% { transform: translateX(-100%); }
    50% { transform: translateX(100%); }
}

.logo-icon svg {
    width: 28px;
    height: 28px;
    fill: white;
    z-index: 1;
    position: relative;
}

.logo-text {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.logo-brand {
    font-size: 1.5rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary-color), var(--warning-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
    letter-spacing: -0.5px;
}

.logo-tagline {
    font-size: 0.75rem;
    color: var(--text-secondary);
    font-weight: 400;
    margin-top: 0.125rem;
    opacity: 0.8;
}

/* 響應式設計 */
@media (max-width: 768px) {
    .scga-logo {
        padding: 0.375rem;
        gap: 0.5rem;
    }
    
    .logo-icon {
        width: 40px;
        height: 40px;
    }
    
    .logo-icon svg {
        width: 24px;
        height: 24px;
    }
    
    .logo-brand {
        font-size: 1.25rem;
    }
    
    .logo-tagline {
        font-size: 0.625rem;
    }
}

@media (max-width: 480px) {
    .scga-logo {
        flex-direction: column;
        gap: 0.25rem;
        text-align: center;
    }
    
    .logo-text {
        align-items: center;
    }
    
    .logo-icon {
        width: 36px;
        height: 36px;
    }
    
    .logo-icon svg {
        width: 20px;
        height: 20px;
    }
    
    .logo-brand {
        font-size: 1.125rem;
    }
    
    .logo-tagline {
        font-size: 0.5rem;
    }
}