* { box-sizing: border-box; }
body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    background: #f7f9fa;
    margin: 0;
    padding: 40px 16px;
    color: #0f1419;
}
.wrap {
    max-width: 640px;
    margin: 0 auto;
    background: #fff;
    border: 1px solid #e1e8ed;
    border-radius: 16px;
    padding: 32px;
}
h1 {
    font-size: 24px;
    margin: 0 0 4px;
}
.subtitle {
    color: #536471;
    margin: 0 0 24px;
    font-size: 14px;
}
.input-row {
    display: flex;
    gap: 8px;
}
#tweetUrl {
    flex: 1;
    padding: 12px 14px;
    border: 1px solid #cfd9de;
    border-radius: 999px;
    font-size: 15px;
    outline: none;
}
#tweetUrl:focus { border-color: #1d9bf0; }
#fetchBtn {
    padding: 12px 22px;
    background: #1d9bf0;
    color: #fff;
    border: none;
    border-radius: 999px;
    font-weight: 600;
    cursor: pointer;
    font-size: 15px;
}
#fetchBtn:disabled { opacity: 0.6; cursor: default; }
#fetchBtn:hover:not(:disabled) { background: #1a8cd8; }

#status { margin-top: 14px; font-size: 14px; min-height: 20px; }
#status.error { color: #d93025; }
#status.loading { color: #536471; }

.result { margin-top: 24px; }
.result.hidden { display: none; }
#preview {
    width: 100%;
    border-radius: 12px;
    background: #000;
    max-height: 420px;
}
.download-box {
    margin-top: 16px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 10px;
}
#downloadLink {
    background: #0f1419;
    color: #fff;
    text-decoration: none;
    padding: 10px 20px;
    border-radius: 999px;
    font-weight: 600;
    font-size: 14px;
}
#downloadLink.expired {
    background: #ccd6dd;
    color: #536471;
    pointer-events: none;
}
.expiry {
    font-size: 13px;
    color: #536471;
}