* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
body {
    font-family: 'Inter', sans-serif;
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 20px;
    transition: background-color 0.3s ease;
}
body.dark {
    background: #2c3e50;
}
body.light {
    background: white;
}
.container {
    max-width: 500px;
    width: 100%;
    position: relative;
}
.theme-toggle {
    position: absolute;
    bottom: -60px;
    right: 50%;
    transform: translateX(50%);
    background: transparent;
    border: none;
    font-size: 1.5em;
    cursor: pointer;
    padding: 8px;
    transition: transform 0.2s ease;
}
.theme-toggle:hover {
    transform: translateX(50%) scale(1.1);
}
body.dark .theme-icon {
    filter: brightness(0) invert(1);
}
.header {
    text-align: center;
    margin-bottom: 60px;
}
.title {
    font-size: 32px;
    font-weight: 700;
    letter-spacing: 2px;
    margin-bottom: 8px;
    transition: color 0.3s ease;
}
body.dark .title {
    color: #ffffff;
}
body.light .title {
    color: rgb(26, 188, 156);
}
.subtitle {
    font-size: 16px;
    font-weight: 400;
    letter-spacing: 2px;
    text-transform: uppercase;
    transition: color 0.3s ease;
}
body.dark .subtitle {
    color: #1abc9c;
}
body.light .subtitle {
    color: rgb(26, 188, 156);
}
.links {
    display: flex;
    flex-direction: column;
    gap: 16px;
}
.link-card {
    padding: 16px 24px;
    text-decoration: none;
    font-size: 16px;
    font-weight: 600;
    letter-spacing: 0.5px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    text-align: center;
    border-radius: 8px;
    border: none;
    transition: all 0.3s ease, transform 0.2s ease;
}
body.dark .link-card {
    background: rgba(26, 188, 156, 0.85);
    color: #ffffff;
}
body.light .link-card {
    background: rgb(26, 188, 156);
    color: white;
}
body.dark .link-card:hover {
    background: rgba(26, 188, 156, 0.95);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(26, 188, 156, 0.3);
}
body.light .link-card:hover {
    background: rgb(22, 160, 133);
    transform: translateY(-1px);
}
.link-card:active {
    transform: translateY(0);
}
.icon {
    font-size: 1.2em;
    opacity: 0.9;
}
.link-text {
    flex: 1;
}
.arrow {
    opacity: 0;
    transition: opacity 0.3s ease;
    color: #ffffff;
}
.link-card:hover .arrow {
    opacity: 1;
}
@media (max-width: 600px) {
    .title {
        font-size: 28px;
    }
    
    .subtitle {
        font-size: 14px;
    }
    
    .link-card {
        flex-direction: column;
        gap: 8px;
    }
    
    .arrow {
        display: none;
    }
}
@media (max-width: 400px) {
    .title {
        font-size: 24px;
    }
    
    .subtitle {
        font-size: 12px;
    }
    
    .link-card {
        padding: 14px 20px;
        font-size: 14px;
    }
}