@media (prefers-color-scheme: light) {
    :root {
        --text: #111;
        --accent: #1688f0;
        --bg-main: linear-gradient(to bottom right, #fff, #f0f0f0);
        --bg-link: linear-gradient(to bottom right, #f0f0f0, #e0e0e0);
        --bg-alt: linear-gradient(to bottom right, #f5f5f5, #e0e0e0);
    }
}

@media (prefers-color-scheme: dark) {
    :root {
        --text: #e5e5e5;
        --accent: #1688f0;
        --bg-main: linear-gradient(to bottom right, #000, #0a0a0f);
        --bg-link: linear-gradient(to bottom right, #0f0f1a, #1a1a2e);
        --bg-alt: linear-gradient(to bottom right, #0a0a0f, #1a1a2e);
    }
}

* {
    box-sizing: border-box;
}

body {
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0;
    font-family: "Open Sans", sans-serif;
    background: var(--bg-main);
    color: var(--text);
    font-size: 16px;
    min-height: 100vh;
}

.container {
    display: flex;
    justify-content: center;
    flex-direction: row;
    flex-wrap: wrap;
    align-items: center;
    width: 90%;
    max-width: 1280px;
}

.hide {
    display: none !important;
}

h1 {
    color: var(--accent);
    margin-bottom: 4px;
}

small {
    width: 100%;
    text-align: center;
    display: block;
    margin-bottom: 20px;
}

p {
    margin: 0;
    color: var(--text);
}

h2 {
    width: 100%;
    text-align: center;
    color: var(--text);
    margin: 0;
}

img {
    border: 2px solid var(--accent);
    box-shadow:
        0 0 8px rgba(22, 136, 240, 0.8),
        0 0 12px rgba(22, 136, 240, 0.6);
    max-width: 100%;
    height: auto;
    border-radius: 8px;
}

a {
    color: var(--accent);
    text-decoration: none;
    transition: color 0.3s ease-in-out;
}

a:hover {
    color: #125ea8;
}

ul {
    list-style: none;
    padding: 0;
}

.filter-links,
input {
    background: var(--bg-alt);
    width: 50%;
    border-radius: 20px;
    min-width: 300px;
    margin-top: 1em;
    padding: 1em;
    margin-bottom: 1em;
    border: 2px solid var(--accent);
    color: var(--text);
    text-align: center;
    box-shadow:
        0 4px 6px rgba(22, 136, 240, 0.4),
        0 1px 3px rgba(22, 136, 240, 0.3);
}

.links {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    background: var(--bg-link);
    padding: 2em;
    border-radius: 20px;
    box-shadow:
        0 4px 10px rgba(22, 136, 240, 0.4),
        0 1px 3px rgba(22, 136, 240, 0.3);
}

h3 {
    margin: 4px;
    width: 100%;
    text-align: center;
    color: var(--accent);
}

.link-list {
    width: 100%;
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: flex-start;
}

.link-list li {
    width: 100%;
    min-height: 80px;
    border-radius: 10px;
    margin: 1em 0;
    border: 1px solid var(--accent);
    padding: 1em;
    text-align: center;
    background: var(--bg-alt);
    transition: all 0.3s ease-in-out;
    box-shadow:
        0 4px 6px rgba(22, 136, 240, 0.2),
        0 1px 3px rgba(22, 136, 240, 0.2);
}

.link-list li:hover {
    background: var(--bg-main);
    transform: scale(1.02);
    box-shadow:
        0 6px 12px rgba(22, 136, 240, 0.5),
        0 3px 8px rgba(22, 136, 240, 0.4);
}

@media (min-width: 700px) {
    .link-list {
        justify-content: space-between;
    }

    .link-list li {
        width: 48%;
    }
}

@media (min-width: 1200px) {
    .link-list li {
        width: 30%;
    }
}