body {
    font-family: "Segoe UI", Arial, sans-serif;
    background: #f8f9fa;
    color: #222;
    margin: 0;
    padding: 0;
    min-height: 100vh;
}
header {
    background: #1976d2;
    color: #fff;
    padding: 1em 0.5em;
    text-align: center;
}
nav a {
    color: #fff;
    text-decoration: none;
    margin: 0 0.5em;
}
nav a:hover {
    text-decoration: underline;
}
main {
    max-width: 600px;
    margin: 2em auto;
    background: #fff;
    padding: 2em;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.05);
    width: 95%;
    box-sizing: border-box;
}
footer {
    text-align: center;
    color: #888;
    font-size: 0.9em;
    margin: 2em 0 1em 0;
    word-break: break-all;
}
ul {
    padding-left: 1.2em;
}
li {
    margin-bottom: 0.5em;
}

.share-list {
    display: flex;
    flex-direction: column;
    gap: 1em;
    margin: 1em 0;
}
.share-card {
    display: flex;
    background: #f4f7fb;
    border-radius: 8px;
    box-shadow: 0 1px 4px rgba(0,0,0,0.04);
    padding: 1em;
    align-items: center;
    transition: box-shadow 0.2s;
}
.share-card:hover {
    box-shadow: 0 4px 16px rgba(25,118,210,0.10);
}
.cover {
    width: 80px;
    height: 80px;
    object-fit: cover;
    border-radius: 6px;
    margin-right: 1em;
    background: #e0e0e0;
}
.share-info {
    flex: 1;
    min-width: 0;
}
.share-title {
    font-size: 1.1em;
    font-weight: bold;
    margin-bottom: 0.3em;
    word-break: break-all;
}
.share-title a {
    color: #1976d2;
    text-decoration: none;
}
.share-title a:hover {
    text-decoration: underline;
}
.share-date, .share-elapsed, .share-description {
    font-size: 0.95em;
    color: #555;
    margin-bottom: 0.2em;
}

@media (max-width: 700px) {
    .share-card {
        flex-direction: column;
        align-items: flex-start;
        padding: 0.7em;
    }
    .cover {
        margin-right: 0;
        margin-bottom: 0.7em;
        width: 100%;
        height: auto;
        max-width: 300px;
    }
}

@media (max-width: 700px) {
    main {
        max-width: 100%;
        padding: 1em;
    }
    header {
        padding: 0.7em 0.2em;
    }
    h1, h2 {
        font-size: 1.2em;
    }
    nav {
        font-size: 1em;
    }
}