body {
    margin: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    flex-direction: column;
    height: 100vh;
    background-color: #FFFDF0;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;
    text-align: center;
}

.profile-container {
    position: relative;
    display: inline-block;
}

.profile-image {
    width: 15vw;
    height: 15vw;
    max-width: 150px;
    max-height: 150px;
    border-radius: 50%;
    border: 3px solid #333;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.profile-image:hover {
    transform: scale(1.1);
}

.speech-bubble {
    position: absolute;
    top: -80px;
    left: 50%;
    transform: translateX(-50%);
    background-color: #333;
    color: white;
    padding: 12px 16px;
    border-radius: 25px;
    font-size: 24px;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;
    font-weight: 500;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    white-space: nowrap;
    z-index: 10;
}

.speech-bubble::after {
    content: '';
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    border: 8px solid transparent;
    border-top-color: #333;
}

.profile-container:hover .speech-bubble {
    opacity: 1;
    visibility: visible;
    top: -90px;
}

h1 {
    font-size: 7vw;
    color: #333;
    margin: 1rem 0 0 0;
    font-weight: 600;
    letter-spacing: -0.02em;
}

h2 {
    font-size: 1.2vw;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;
    color: #666;
    margin: 0.5rem 0 0 0;
    font-weight: 400;
    letter-spacing: 0.01em;
}

@media (max-width: 768px) {
    h1 {
        font-size: 12vw;
    }
    .line-container {
        margin-top: 1.5rem;
    }
    .dot {
        margin: 0 1.5vw;
    }
}

@media (max-width: 480px) {
    h1 {
        font-size: 14vw;
    }
    .line {
        height: 1.5px;
    }
    .dot {
        margin: 0 1vw;
    }
}

.linktree {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    margin-top: 2rem;
}

.link-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px 24px;
    background: rgba(255, 255, 255, 0.25);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.18);
    border-radius: 20px;
    box-shadow: 
        0 8px 32px rgba(0, 0, 0, 0.1),
        inset 0 1px 0 rgba(255, 255, 255, 0.3);
    text-decoration: none;
    color: #333;
    font-size: 16px;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;
    font-weight: 500;
    letter-spacing: 0.01em;
    transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    min-width: 200px;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.link-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.4), transparent);
    transition: left 0.6s ease;
}

.link-item:hover {
    background: rgba(255, 255, 255, 0.35);
    backdrop-filter: blur(25px);
    -webkit-backdrop-filter: blur(25px);
    border: 1px solid rgba(255, 255, 255, 0.25);
    box-shadow: 
        0 12px 40px rgba(0, 0, 0, 0.15),
        inset 0 1px 0 rgba(255, 255, 255, 0.4);
    transform: translateY(-3px) scale(1.02);
    color: #1a1a1a;
}

.link-item:hover::before {
    left: 100%;
}

.logo {
    width: 24px;
    height: 24px;
    object-fit: contain;
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.1));
    transition: transform 0.3s ease;
}

.link-item:hover .logo {
    transform: scale(1.1);
}