:root {
    --background-color: #121212; 
    --card-background: #1E1E1E; 
    --text-color: #E0E0E0;
    --accent-color: #E02A8F; 
    --accent-hover-color: #F548A7; 
    --secondary-text-color: #A0A0A0;
    --border-color: #333333; 
    --button-secondary-bg: #2a2a2e; 
    --button-secondary-hover-bg: #3f3f46;
}
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
html {
    height: 100%;
}
body {
    font-family: 'Lato', sans-serif; 
    display: flex; 
    flex-direction: column; 
    align-items: center;
    justify-content: center;
    min-height: 100vh; 
    background-color: var(--background-color);
    color: var(--text-color); 
    text-align: center; 
    padding: 20px; 
    line-height: 1.7;
}
.link-hub-card {
    background-color: var(--card-background); 
    padding: 35px 40px; 
    border-radius: 24px;
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.5); 
    max-width: 480px; 
    width: 100%;
    display: flex; 
    flex-direction: column; 
    align-items: center; 
    border: 1px solid var(--border-color);
}
.avatar {
    width: 110px; 
    height: 110px; 
    border-radius: 50%; 
    border: 3px solid var(--accent-color);
    box-shadow: 0 0 20px rgba(224, 42, 143, 0.4);
    object-fit: cover; 
    margin-bottom: 20px;
}
h1 {
    font-family: 'Poppins', sans-serif; 
    font-size: 28px; 
    font-weight: 700;
    color: var(--text-color); 
    margin-bottom: 8px;
}
.username-handle { 
    font-size: 16px; 
    color: var(--secondary-text-color); 
    margin-bottom: 30px; 
}
.link-group { 
    width: 100%; 
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 15px; /* Mezery mezi tlačítky a texty */
}
.link-group h2 {
    font-family: 'Poppins', sans-serif; 
    font-size: 18px; 
    font-weight: 600;
    color: var(--text-color); 
    margin-bottom: 10px; 
    text-align: center; 
    width: 100%;
}
.button-link {
    display: block; 
    width: 100%; 
    padding: 16px 20px; 
    background-color: var(--button-secondary-bg); 
    color: var(--text-color);
    text-decoration: none; 
    border-radius: 12px; 
    font-size: 16px;
    font-family: 'Lato', sans-serif; 
    font-weight: 700; 
    border: 1px solid var(--border-color);
    cursor: pointer; 
    transition: all 0.2s ease-in-out;
    text-align: center;
}
.button-link:hover {
    background-color: var(--button-secondary-hover-bg); 
    transform: translateY(-3px);
    box-shadow: 0 4px 15px rgba(0,0,0,0.3);
}
.button-primary { 
    background: linear-gradient(135deg, var(--accent-color), #b82274);
    color: white; 
    border: none;
    box-shadow: 0 6px 20px rgba(224, 42, 143, 0.3);
}
.button-primary:hover {
    background: linear-gradient(135deg, var(--accent-hover-color), #d12886);
    box-shadow: 0 8px 25px rgba(224, 42, 143, 0.4);
    transform: translateY(-4px) scale(1.02);
}
.welcome-text, .description-text {
    font-size: 15px;
    color: var(--secondary-text-color);
    margin-top: 25px;
    margin-bottom: 10px;
    max-width: 90%;
    line-height: 1.6;
}
footer { 
    width: 100%; 
    text-align: center; 
    margin-top: 30px;
    font-size: 12px; 
    color: var(--secondary-text-color); 
}