/* 인트로 로고 스타일 */
/* static/css/intro/intro_logo.css */

.logo-container {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
    margin: 2rem 0;
}

.intro-logo {
    transition: all 0.5s ease;
    filter: drop-shadow(0 10px 30px rgba(0, 0, 0, 0.3));
    animation: logoFloat 6s ease-in-out infinite;
}

.intro-logo:hover {
    transform: scale(1.1) rotate(5deg);
    filter: drop-shadow(0 15px 40px rgba(0, 0, 0, 0.4)) brightness(1.1);
}

/* 로고 플로팅 애니메이션 */
@keyframes logoFloat {
    0%, 100% {
        transform: translateY(0px) rotate(0deg);
    }
    25% {
        transform: translateY(-10px) rotate(2deg);
    }
    50% {
        transform: translateY(0px) rotate(0deg);
    }
    75% {
        transform: translateY(-5px) rotate(-2deg);
    }
}

/* 로고 글로우 효과 */
.logo-container::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 120%;
    height: 120%;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 0%, transparent 70%);
    border-radius: 50%;
    opacity: 0;
    animation: logoGlow 4s ease-in-out infinite;
}

@keyframes logoGlow {
    0%, 100% {
        opacity: 0;
        transform: translate(-50%, -50%) scale(0.8);
    }
    50% {
        opacity: 0.3;
        transform: translate(-50%, -50%) scale(1.2);
    }
}

/* 반응형 조정 */
@media (max-width: 768px) {
    .intro-logo {
        width: 5rem !important;
        height: 5rem !important;
    }
    
    .logo-container {
        margin: 1.5rem 0;
    }
    
    @keyframes logoFloat {
        0%, 100% {
            transform: translateY(0px);
        }
        50% {
            transform: translateY(-5px);
        }
    }
}

@media (max-width: 640px) {
    .intro-logo {
        width: 4rem !important;
        height: 4rem !important;
    }
    
    .logo-container {
        margin: 1rem 0;
    }
}

/* 태블릿 크기 */
@media (min-width: 768px) and (max-width: 1024px) {
    .intro-logo {
        width: 7rem !important;
        height: 7rem !important;
    }
}

/* 데스크톱 크기 */
@media (min-width: 1024px) {
    .intro-logo {
        width: 10rem !important;
        height: 10rem !important;
    }
}

/* 접근성 - 모션 감소 설정 */
@media (prefers-reduced-motion: reduce) {
    .intro-logo {
        animation: none;
    }
    
    .intro-logo:hover {
        transform: scale(1.05);
    }
    
    .logo-container::before {
        animation: none;
        opacity: 0;
    }
    
    @keyframes logoFloat {
        0%, 100% {
            transform: none;
        }
    }
}

/* 고대비 모드 지원 */
@media (prefers-contrast: high) {
    .intro-logo {
        filter: drop-shadow(0 5px 15px rgba(0, 0, 0, 0.8)) contrast(1.2);
    }
    
    .logo-container::before {
        background: radial-gradient(circle, rgba(255, 255, 255, 0.3) 0%, transparent 70%);
    }
}

/* 다크 모드 대응 */
@media (prefers-color-scheme: dark) {
    .intro-logo {
        filter: drop-shadow(0 10px 30px rgba(255, 255, 255, 0.1));
    }
    
    .intro-logo:hover {
        filter: drop-shadow(0 15px 40px rgba(255, 255, 255, 0.2)) brightness(1.1);
    }
}