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

html, body {
    min-height: 100%;
    overflow-x: hidden;
}

body {
    font-family: 'Montserrat', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: #1C1C1C;
    color: #FFFFFF;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Hero Section */
.hero-section {
    background: #1C1C1C;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    position: relative;
    overflow: hidden;
}

/* Three.js Background */
#three-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
    pointer-events: none;
}

#three-background canvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100% !important;
    height: 100% !important;
    object-fit: cover;
}

.hero-content {
    width: 100%;
    padding: 20px;
    position: relative;
    z-index: 2;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.yoon-logo {
    width: calc(100vw - 60px);
    max-width: none;
    height: auto;
    display: block;
    margin: 0 20px 0 auto;
}

.kang-logo {
    width: calc(100vw - 60px);
    max-width: none;
    height: auto;
    display: block;
    margin: 0 20px 0 auto;
}

.yoon-logo {
    margin-bottom: 10px;
}

.kang-logo {
    margin-bottom: 25px;
}

.hero-text {
    width: calc(100vw - 60px);
    max-width: none;
    display: flex;
    flex-direction: column;
    gap: 20px;
    margin-top: 20px;
    margin-right: 0px;
    margin-left: 15px;
}

.hero-title {
    font-size: 25px;
    font-weight: 400;
    color: #FFFFFF;
    text-align: left;
}

.hero-subtitle {
    font-size: 25px;
    font-weight: 400;
    color: #FFFFFF;
    text-align: right;
}

/* Links Section */
.links-section {
    background: #E1F37B;
    padding: 40px 20px;
}

.links-container {
    max-width: 600px;
    margin: 0 auto;
}

.section-title {
    font-size: 24px;
    font-weight: 600;
    color: #1C1C1C;
    margin-bottom: 30px;
    text-align: left;
    letter-spacing: 0.5px;
}

.links-list {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.link-item {
    font-size: 18px;
    font-weight: 400;
    color: #1C1C1C;
    text-decoration: underline;
    text-underline-offset: 4px;
    transition: all 0.2s ease;
    display: inline-block;
    cursor: pointer;
}

.link-item:hover {
    opacity: 0.7;
    text-underline-offset: 6px;
}

.link-item.no-link {
    cursor: default;
}

.link-item.no-link:hover {
    opacity: 1;
    text-underline-offset: 4px;
}

.coming-soon {
    font-size: 14px;
    font-weight: 200;
    opacity: 0.7;
}

/* Connect Section */
.connect-section {
    background: #1C1C1C;
    padding: 40px 20px 60px;
}

.connect-container {
    max-width: 600px;
    margin: 0 auto;
}

.connect-section .section-title {
    color: #FFFFFF;
}

.connect-list {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.connect-section .link-item {
    color: #FFFFFF;
}

/* Mobile Responsive */
@media (max-width: 768px) {
    .hero-section {
        padding: 15px;
    }
    
    .hero-content {
        padding: 15px;
    }
    
    .yoon-logo {
        width: calc(100vw - 45px);
        margin: 0 15px 18px auto;
    }

    .kang-logo {
        width: calc(100vw - 45px);
        margin: 0 15px 0 auto;
    }
    
    .hero-text {
        width: calc(100vw - 45px);
        margin-right: 0px;
        margin-left: 12px;
    }
    
    .hero-title, .hero-subtitle {
        font-size: 20px;
    }
    
    .section-title {
        font-size: 20px;
    }
    
    .link-item {
        font-size: 16px;
    }
    
    .coming-soon {
        font-size: 12px;
    }
}

@media (max-width: 480px) {
    .hero-section {
        padding: 10px;
    }
    
    .hero-content {
        padding: 20px 10px 0px 10px;
    }
    
    .yoon-logo {
        width: calc(100vw - 30px);
        margin: 0 10px 24px auto;
    }
    
    .kang-logo {
        width: calc(100vw - 30px);
        margin: 0 10px 0 auto;
    }

    .hero-text {
        width: calc(100vw - 30px);
        margin-right: 0px;
    }
    
    .hero-title, .hero-subtitle {
        font-size: 26px;
    }
    
    .links-section, .connect-section {
        padding: 30px 20px;
    }
    
    .section-title {
        font-size: 18px;
        margin-bottom: 25px;
    }
    
    .link-item {
        font-size: 14px;
    }
    
    .coming-soon {
        font-size: 11px;
    }
}

/* Small devices */
@media (max-width: 360px) {
    .hero-content {
        padding: 20px 10px 0px 10px;
    }
    
    .yoon-logo {
        width: calc(100vw - 30px);
        margin: 0 10px 18px auto;
    }

    .kang-logo {
        width: calc(100vw - 30px);
        margin: 0 10px 0px auto;
    }
    
    .hero-text {
        width: calc(100vw - 30px);
        margin-right: 0px;  
        margin-left: 7px;
    }
    
    .hero-title, .hero-subtitle {
        font-size: 24px;
    }
}


/* Focus states for accessibility */
a:focus {
    outline: 2px solid #E1F37B;
    outline-offset: 2px;
}

.connect-section a:focus {
    outline-color: #FFFFFF;
}