/* 전역 스타일 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Noto Sans KR', sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    color: #ffffff;
    overflow-x: hidden;
}

.container {
    position: relative;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: 2rem;
}

/* 배경 애니메이션 */
.background-animation {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    z-index: 0;
}

.circle {
    position: absolute;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    animation: float 20s infinite ease-in-out;
}

.circle-1 {
    width: 300px;
    height: 300px;
    top: 10%;
    left: 10%;
    animation-delay: 0s;
}

.circle-2 {
    width: 200px;
    height: 200px;
    top: 60%;
    right: 15%;
    animation-delay: 5s;
}

.circle-3 {
    width: 400px;
    height: 400px;
    bottom: -100px;
    left: 50%;
    animation-delay: 10s;
}

@keyframes float {
    0%, 100% {
        transform: translate(0, 0) scale(1);
        opacity: 0.3;
    }
    50% {
        transform: translate(50px, 50px) scale(1.1);
        opacity: 0.6;
    }
}

/* 메인 콘텐츠 */
.content {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 800px;
    width: 100%;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border-radius: 20px;
    padding: 3rem 2rem;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

/* 로고 섹션 */
.logo-section {
    margin-bottom: 3rem;
    animation: fadeInDown 1s ease-out;
}

.logo-en {
    font-family: 'Poppins', sans-serif;
    font-size: 4rem;
    font-weight: 900;
    letter-spacing: 0.1em;
    margin-bottom: 0.5rem;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.2);
}

.logo-kr {
    font-size: 1.5rem;
    font-weight: 500;
    opacity: 0.95;
    letter-spacing: 0.05em;
}

/* 메시지 섹션 */
.message-section {
    margin-bottom: 3rem;
    animation: fadeInUp 1s ease-out 0.3s backwards;
}

.icon-wrapper {
    margin-bottom: 1.5rem;
}

.icon-wrapper i {
    font-size: 4rem;
    animation: rotate 3s linear infinite;
}

@keyframes rotate {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}

.main-message {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.sub-message {
    font-size: 1.1rem;
    font-weight: 300;
    margin-bottom: 0.5rem;
    opacity: 0.9;
}

.sub-message-en {
    font-family: 'Poppins', sans-serif;
    font-size: 1rem;
    font-weight: 300;
    opacity: 0.8;
    font-style: italic;
}

/* 진행 표시 */
.progress-section {
    margin-bottom: 3rem;
    animation: fadeInUp 1s ease-out 0.6s backwards;
}

.progress-bar {
    width: 100%;
    height: 8px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 10px;
    overflow: hidden;
    margin-bottom: 1rem;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, #ffffff 0%, #a8edea 100%);
    border-radius: 10px;
    animation: progressAnimation 2s ease-in-out infinite;
}

@keyframes progressAnimation {
    0% {
        width: 0%;
    }
    50% {
        width: 70%;
    }
    100% {
        width: 0%;
    }
}

.progress-text {
    font-size: 0.9rem;
    opacity: 0.8;
}

/* 문의 섹션 */
.contact-section {
    margin-bottom: 2rem;
    animation: fadeInUp 1s ease-out 0.9s backwards;
}

.contact-item {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.8rem;
    margin-bottom: 1rem;
    font-size: 0.95rem;
    opacity: 0.9;
}

.contact-item i {
    font-size: 1.2rem;
}

/* 소셜 섹션 */
.social-section {
    animation: fadeInUp 1s ease-out 1.2s backwards;
}

.social-title {
    font-size: 0.9rem;
    font-weight: 500;
    margin-bottom: 1rem;
    opacity: 0.8;
}

.social-links {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
}

.social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 45px;
    height: 45px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    color: #ffffff;
    text-decoration: none;
    font-size: 1.2rem;
    transition: all 0.3s ease;
}

.social-link:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: translateY(-5px);
}

/* 푸터 */
.footer {
    position: relative;
    z-index: 1;
    margin-top: 2rem;
    font-size: 0.85rem;
    opacity: 0.7;
    animation: fadeIn 1s ease-out 1.5s backwards;
}

/* 애니메이션 키프레임 */
@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

/* 반응형 디자인 */
@media (max-width: 768px) {
    .content {
        padding: 2rem 1.5rem;
    }

    .logo-en {
        font-size: 3rem;
    }

    .logo-kr {
        font-size: 1.2rem;
    }

    .icon-wrapper i {
        font-size: 3rem;
    }

    .main-message {
        font-size: 1.5rem;
    }

    .sub-message {
        font-size: 1rem;
    }

    .contact-item {
        font-size: 0.85rem;
    }

    .circle-1, .circle-2, .circle-3 {
        width: 200px;
        height: 200px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 1rem;
    }

    .content {
        padding: 1.5rem 1rem;
    }

    .logo-en {
        font-size: 2.5rem;
    }

    .logo-kr {
        font-size: 1rem;
    }

    .main-message {
        font-size: 1.3rem;
    }

    .contact-item {
        flex-direction: column;
        gap: 0.3rem;
    }

    .social-links {
        gap: 1rem;
    }

    .social-link {
        width: 40px;
        height: 40px;
        font-size: 1rem;
    }
}