/**
 * @file preview.css
 * @description aタグ遷移先ページのプレビュー表示
 * @summary
 *   - レスポンシブデザイン
 * @recent_changes
 *   - ファイル先頭に説明コメントを追加
 */
.link-preview {
    position: fixed;
    z-index: 9999;
    max-width: 360px;
    width: min(90vw, 360px);
    background: #fff;
    color: #111;
    border-radius: 8px;
    box-shadow: 0 8px 28px rgba(0, 0, 0, 0.25);
    overflow: hidden;
    font-family:
        system-ui,
        -apple-system,
        "Segoe UI",
        Roboto,
        "Helvetica Neue",
        Arial;
    transform-origin: top left;
}
.link-preview .media {
    width: 100%;
    height: 160px;
    object-fit: cover;
    background: #f2f2f2;
    display: block;
}
.link-preview .body {
    padding: 12px;
}
.link-preview .title {
    font-weight: 700;
    font-size: 14px;
    margin: 0 0 6px 0;
    line-height: 1.2;
}
.link-preview .excerpt {
    font-size: 13px;
    color: #444;
    line-height: 1.4;
    max-height: 3.2em;
    overflow: hidden;
}
.link-preview .footer {
    display: flex;
    gap: 8px;
    padding: 8px 12px;
    border-top: 1px solid #eee;
    background: #fafafa;
}
.link-preview .open-btn {
    margin-left: auto;
    background: #0366d6;
    color: white;
    border: none;
    padding: 6px 10px;
    border-radius: 6px;
    cursor: pointer;
    font-size: 13px;
}
.link-preview .close-btn {
    background: transparent;
    border: none;
    cursor: pointer;
    color: #666;
    font-size: 14px;
}

/* =========================
   IFRAME preview styles
   These styles are appended to support iframe-based previews used by preview.js.
   They assume the existing portfolio modal styles (.modal-overlay, .modal-container, .modal-content)
   are present. Keep these minimal to avoid conflicting with site CSS.
   ========================= */

/* Make iframe fill modal content area nicely */
.modal-content .preview-iframe {
    width: 100%;
    height: 80vh; /* suitable for desktop & mobile; fine-tune as needed */
    border: 0;
    display: block;
    background: white;
}

/* On small screens, make iframe taller */
@media (max-width: 600px) {
    .modal-content .preview-iframe {
        height: 90vh;
    }
}

/* Ensure modal-content doesn't add extra scrollbars by default */
.modal-content {
    padding: 1rem;
    box-sizing: border-box;
    max-height: 92vh;
    overflow: auto;
}

/* Small source note shown above iframe (styled here) */
.modal-content > .preview-source-note,
.preview-source-note {
    font-size: 12px;
    color: var(--color-text-muted, #666);
    margin-bottom: 8px;
}

/* If the modal has a close button floating over the container, ensure visibility */
.modal-container .modal-close {
    z-index: 2147483647; /* ensure above iframe */
}

/* Provide a fallback message layout for cross-origin frames or load-failure */
.modal-content .preview-open-external {
    display: inline-block;
    margin-top: 0.5rem;
    color: #0366d6;
    text-decoration: underline;
}

/* Reduce visual jump when iframe content includes its own background */
.modal-content .preview-iframe,
.modal-content .preview-iframe body {
    background: transparent;
}

/* Accessibility: make sure focus outline is visible for keyboard users */
.modal-content .preview-iframe:focus {
    outline: 3px solid rgba(3, 102, 214, 0.25);
}

/* Small utility to ensure images inside iframe area are not too large when shown as previews */
.modal-content img {
    max-width: 100%;
    height: auto;
    display: block;
}