/* =========================================================
   Cat Archive — style.css
   ========================================================= */

/* ---------- 字体变量 ---------- */

:root {
    --font-sans: "Inter", "PingFang SC", "Microsoft YaHei", system-ui, -apple-system, sans-serif;
    --font-serif: "Noto Serif SC", "Songti SC", "SimSun", Georgia, serif;
    --font-mono: "JetBrains Mono", "SF Mono", Menlo, Consolas, monospace;

    --color-bg: #ffffff;
    --color-fg: #1a1a1a;
    --color-muted: #888;
    --color-faint: #bbb;
    --color-line: #e5e5e5;
    --color-soft: #f7f7f7;

    --max-width: 1100px;
    --pad-x: 1.5rem;
}


/* ---------- Reset ---------- */

*,
*::before,
*::after {
    box-sizing: border-box;
}

html {
    -webkit-text-size-adjust: 100%;
}

body {
    margin: 0;

    font-family: var(--font-sans);
    font-size: 16px;
    line-height: 1.7;

    color: var(--color-fg);
    background: var(--color-bg);

    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

img,
video {
    max-width: 100%;
    display: block;
}

a {
    color: inherit;
}

button {
    font: inherit;
    cursor: pointer;
}


/* =========================================================
   Header
   ========================================================= */

.site-header {
    max-width: var(--max-width);

    margin: 0 auto;
    padding: 1.5rem var(--pad-x);

    display: flex;
    justify-content: space-between;
    align-items: center;

    gap: 1.5rem;
}

.brand {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    letter-spacing: 0.2em;

    text-transform: uppercase;
    text-decoration: none;

    font-weight: 600;
}

.site-nav {
    display: flex;
    gap: 1.5rem;
}

.site-nav a {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    letter-spacing: 0.18em;

    text-transform: uppercase;
    text-decoration: none;

    color: var(--color-muted);

    transition: color 0.2s ease;
}

.site-nav a:hover {
    color: var(--color-fg);
}

.site-nav a.active {
    color: var(--color-fg);

    text-decoration: underline;
    text-underline-offset: 4px;
}

@media (max-width: 640px) {
    .site-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
    }

    .site-nav {
        flex-wrap: wrap;
        gap: 1rem;
    }
}


/* =========================================================
   Hero
   ========================================================= */

.hero {
    max-width: var(--max-width);

    margin: 0 auto;
    padding: 6rem var(--pad-x) 4rem;

    text-align: left;
}

.hero-label {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    letter-spacing: 0.25em;

    text-transform: uppercase;

    color: var(--color-muted);

    margin-bottom: 1.5rem;
}

.hero h1 {
    font-family: var(--font-serif);

    font-size: clamp(3rem, 10vw, 6rem);
    font-weight: 700;

    line-height: 1.05;
    letter-spacing: 0.02em;

    margin: 0 0 1.5rem;
}

.hero-title {
    font-size: 1.25rem;
    font-weight: 400;

    margin: 0 0 0.5rem;
}

.hero-description {
    font-size: 0.95rem;

    color: var(--color-muted);

    margin: 0;
}


/* =========================================================
   Section
   ========================================================= */

.section {
    max-width: var(--max-width);

    margin: 0 auto;
    padding: 4rem var(--pad-x);
}

.section-heading {
    display: flex;

    gap: 1.5rem;
    align-items: flex-start;

    margin-bottom: 3rem;
    padding-bottom: 1.5rem;

    border-bottom: 1px solid var(--color-line);
}

.section-number {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    letter-spacing: 0.18em;

    color: var(--color-faint);

    padding-top: 0.4rem;
}

.eyebrow {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    letter-spacing: 0.2em;

    text-transform: uppercase;

    color: var(--color-muted);

    margin: 0 0 0.4rem;
}

.section-heading h2 {
    font-family: var(--font-serif);
    font-size: 1.75rem;
    font-weight: 700;

    margin: 0;

    line-height: 1.3;
}


/* =========================================================
   内页顶栏
   ========================================================= */

.page-topbar {
    max-width: var(--max-width);

    margin: 0 auto;
    padding: 2rem var(--pad-x) 0;

    display: flex;
    justify-content: space-between;
    align-items: center;

    font-family: var(--font-mono);
    font-size: 0.7rem;
    letter-spacing: 0.15em;

    text-transform: uppercase;
}

.back-link {
    text-decoration: none;
    color: var(--color-muted);

    transition: color 0.2s ease;
}

.back-link:hover {
    color: var(--color-fg);
}

.page-index {
    color: var(--color-faint);
}


/* =========================================================
   首页入口卡片
   ========================================================= */

.home-nav {
    display: grid;

    grid-template-columns: repeat(2, 1fr);

    gap: 1px;

    background: var(--color-line);

    border: 1px solid var(--color-line);

    margin-top: 2rem;
    padding: 0;
}

.home-card {
    background: var(--color-bg);

    padding: 2.5rem 2rem;

    display: flex;
    flex-direction: column;

    gap: 0.5rem;

    text-decoration: none;
    color: inherit;

    transition: background 0.2s ease;
}

.home-card:hover {
    background: var(--color-soft);
}

.home-card-index {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    letter-spacing: 0.18em;

    color: var(--color-faint);
}

.home-card-title {
    font-family: var(--font-serif);
    font-size: 1.5rem;
    font-weight: 700;
}

.home-card-sub {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    letter-spacing: 0.18em;

    text-transform: uppercase;

    color: var(--color-muted);
}

@media (max-width: 640px) {
    .home-nav {
        grid-template-columns: 1fr;
    }
}


/* =========================================================
   Cat 卡片
   ========================================================= */

.cat-grid {
    display: grid;

    grid-template-columns: repeat(2, 1fr);

    gap: 1.5rem;
}

@media (max-width: 640px) {
    .cat-grid {
        grid-template-columns: 1fr;
    }
}

.cat-card {
    border: 1px solid var(--color-line);

    overflow: hidden;

    background: var(--color-bg);
}

.cat-image-placeholder {
    aspect-ratio: 4 / 3;

    background: var(--color-soft);

    display: flex;
    align-items: center;
    justify-content: center;

    font-family: var(--font-serif);
    font-size: 2rem;

    color: var(--color-muted);
}

.cat-xiaoxiao .cat-image-placeholder {
    background: #f2f0ec;
}

.cat-juejue .cat-image-placeholder {
    background: #f5f0e8;
}

.cat-card-content {
    display: flex;
    justify-content: space-between;
    align-items: center;

    padding: 1.25rem 1.5rem;

    border-top: 1px solid var(--color-line);
}

.cat-name {
    font-family: var(--font-serif);
    font-size: 1.25rem;
    font-weight: 700;

    margin: 0 0 0.25rem;
}

.cat-meta {
    font-size: 0.85rem;

    color: var(--color-muted);

    margin: 0;
}

.cat-index {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    letter-spacing: 0.15em;

    color: var(--color-faint);
}


/* =========================================================
   Moments 筛选
   ========================================================= */

.moment-filters {
    display: flex;

    flex-wrap: wrap;

    gap: 0.5rem;

    margin-bottom: 2rem;
}

.filter-button {
    background: transparent;

    border: 1px solid var(--color-line);

    padding: 0.5rem 1rem;

    font-family: var(--font-mono);
    font-size: 0.7rem;
    letter-spacing: 0.15em;

    text-transform: uppercase;

    color: var(--color-muted);

    transition:
        border-color 0.2s ease,
        color 0.2s ease,
        background 0.2s ease;
}

.filter-button:hover {
    border-color: var(--color-fg);
    color: var(--color-fg);
}

.filter-button.active {
    background: var(--color-fg);

    border-color: var(--color-fg);

    color: var(--color-bg);
}


/* =========================================================
   Moments Media Grid
   ========================================================= */

.media-grid {
    display: grid;

    grid-template-columns: repeat(3, minmax(0, 1fr));

    gap: 1.5rem;

    width: 100%;
}


/* =========================================================
   Moments Media Card
   ========================================================= */

.media-card {
    min-width: 0;

    border: 1px solid var(--color-line);

    overflow: hidden;

    background: var(--color-bg);
}


/* =========================================================
   Media Thumbnail
   ========================================================= */

/* 修改后的代码 */
.media-thumb {
    position: relative;
    width: 100%;
    /* 去掉固定的 aspect-ratio，让高度自适应图片 */
    /* aspect-ratio: 4 / 3;  <-- 删除这一行 */
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-soft);
    
    /* 新增：给一个最小高度，防止图片加载前塌陷 */
    min-height: 200px; 
}

.media-thumb img {
    display: block;
    /* 修改：宽度 100%，高度自动，保持原始比例 */
    width: 100%;
    height: auto; 
    max-width: 100%;
    /* 修改：去掉 contain，或者改为 cover（如果想填满卡片） */
    /* 这里建议用 cover，如果图片比例和卡片差太多，会裁切； 
       如果不想裁切，就用 contain，但容器不要固定高度 */
    object-fit: cover; 
    object-position: center;
    cursor: zoom-in;
    transition: opacity 0.2s ease;
}

.media-thumb img:hover {
    opacity: 0.9;
}


/*
 * 视频
 */

.media-thumb video {
    display: block;
    width: 100%;
    height: auto; /* 改为 auto */
    max-width: 100%;
    object-fit: contain; /* 视频建议用 contain，避免裁切掉字幕或画面 */
    object-position: center;
}


/* =========================================================
   Media Info
   ========================================================= */

.media-info {
    padding: 1rem 1.1rem;

    border-top: 1px solid var(--color-line);
}

.media-title {
    margin: 0;

    font-family: var(--font-serif);
    font-size: 0.95rem;
    font-weight: 700;

    line-height: 1.5;
}

.media-meta {
    margin: 0.35rem 0 0;

    font-family: var(--font-mono);
    font-size: 0.65rem;
    letter-spacing: 0.08em;

    color: var(--color-muted);
}


/* =========================================================
   Media Delete Button
   ========================================================= */

.media-delete {
    position: absolute;

    top: 0.75rem;
    right: 0.75rem;

    z-index: 10;

    padding: 0.4rem 0.7rem;

    border: 1px solid rgba(255, 255, 255, 0.5);

    background: rgba(0, 0, 0, 0.65);

    color: #ffffff;

    font-family: var(--font-mono);
    font-size: 0.65rem;
    letter-spacing: 0.12em;

    cursor: pointer;

    opacity: 0;

    transition:
        opacity 0.2s ease,
        background 0.2s ease;
}

.media-thumb:hover .media-delete {
    opacity: 1;
}

.media-delete:hover {
    background: rgba(0, 0, 0, 0.9);
}

.media-delete:disabled {
    opacity: 0.6;
    cursor: wait;
}


/* =========================================================
   Media Empty
   ========================================================= */

.media-empty {
    grid-column: 1 / -1;

    padding: 4rem 1rem;

    text-align: center;

    color: var(--color-muted);

    border: 1px dashed var(--color-line);
}


/* =========================================================
   Moments Responsive
   ========================================================= */

@media (max-width: 900px) {
    .media-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 640px) {
    .media-grid {
        grid-template-columns: 1fr;

        gap: 1.25rem;
    }

    .media-thumb {
        aspect-ratio: 4 / 3;
    }

    .media-delete {
        opacity: 1;
    }
}


/* =========================================================
   Upload 表单
   ========================================================= */

.upload-form {
    display: flex;
    flex-direction: column;

    gap: 1.5rem;
}

.upload-dropzone {
    border: 1px dashed var(--color-line);

    padding: 2rem;

    text-align: center;

    background: var(--color-soft);

    transition: border-color 0.2s ease;
}

.upload-dropzone:hover {
    border-color: var(--color-fg);
}

.upload-dropzone input[type="file"] {
    position: absolute;

    width: 1px;
    height: 1px;

    opacity: 0;

    overflow: hidden;
}

.upload-label {
    display: flex;
    flex-direction: column;

    gap: 0.5rem;

    cursor: pointer;

    padding: 1.5rem 0;
}

.upload-label-main {
    font-family: var(--font-serif);

    font-size: 1.25rem;
    font-weight: 700;
}

.upload-label-sub {
    font-family: var(--font-mono);

    font-size: 0.7rem;
    letter-spacing: 0.15em;

    color: var(--color-muted);
}

.selected-files {
    margin-top: 1rem;

    font-size: 0.85rem;

    color: var(--color-muted);
}

.form-row {
    display: grid;

    grid-template-columns: repeat(2, 1fr);

    gap: 1.5rem;
}

@media (max-width: 640px) {
    .form-row {
        grid-template-columns: 1fr;
    }
}

.form-field {
    display: flex;
    flex-direction: column;

    gap: 0.5rem;
}

.form-field label {
    font-family: var(--font-mono);

    font-size: 0.7rem;
    letter-spacing: 0.15em;

    text-transform: uppercase;

    color: var(--color-muted);
}

.form-field input[type="text"],
.form-field input[type="date"],
.form-field select,
.form-field textarea {
    font: inherit;

    color: inherit;

    padding: 0.75rem 1rem;

    border: 1px solid var(--color-line);

    background: var(--color-bg);

    border-radius: 0;

    outline: none;

    transition: border-color 0.2s ease;

    width: 100%;
}

.form-field input:focus,
.form-field select:focus,
.form-field textarea:focus {
    border-color: var(--color-fg);
}

.form-field textarea {
    resize: vertical;
}

.upload-actions {
    display: flex;

    align-items: center;

    gap: 1.5rem;

    flex-wrap: wrap;
}

.upload-button {
    font-family: var(--font-mono);

    font-size: 0.75rem;
    letter-spacing: 0.18em;

    text-transform: uppercase;

    padding: 1rem 2rem;

    background: var(--color-fg);

    color: var(--color-bg);

    border: 1px solid var(--color-fg);

    transition: opacity 0.2s ease;
}

.upload-button:hover {
    opacity: 0.8;
}

.upload-status {
    font-size: 0.85rem;

    color: var(--color-muted);
}


/* =========================================================
   About
   ========================================================= */

.about-layout {
    display: grid;

    grid-template-columns: 1fr 1fr;

    gap: 3rem;

    align-items: start;
}

@media (max-width: 768px) {
    .about-layout {
        grid-template-columns: 1fr;

        gap: 2rem;
    }
}

.about-layout h2 {
    font-family: var(--font-serif);

    font-size: clamp(1.75rem, 4vw, 2.5rem);

    font-weight: 700;

    line-height: 1.3;

    margin: 0.5rem 0 0;
}

.about-copy p {
    margin: 0 0 1rem;

    color: #333;
}


/* =========================================================
   Footer
   ========================================================= */

.site-footer {
    max-width: var(--max-width);

    margin: 4rem auto 0;

    padding: 2rem var(--pad-x);

    border-top: 1px solid var(--color-line);

    display: flex;

    justify-content: space-between;

    font-family: var(--font-mono);

    font-size: 0.7rem;
    letter-spacing: 0.15em;

    text-transform: uppercase;

    color: var(--color-muted);
}


/* =========================================================
   Image Lightbox (修复版)
   ========================================================= */

.lightbox {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(0, 0, 0, 0.9);
    z-index: 99999;
    
    /* 使用 flex 居中 */
    display: flex;
    align-items: center;
    justify-content: center;
    
    /* 初始隐藏状态 */
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.2s ease, visibility 0.2s ease;
    
    /* 防止点击图片时关闭 */
    cursor: zoom-out;
}

.lightbox.is-visible {
    opacity: 1;
    visibility: visible;
}

/* 图片样式 */
.lightbox img {
    display: block;
    max-width: 90vw;
    max-height: 90vh;
    width: auto;
    height: auto;
    object-fit: contain;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
    transform: scale(0.95);
    transition: transform 0.2s ease;
    cursor: default;
}

.lightbox.is-visible img {
    transform: scale(1);
}

/* 关闭按钮 */
.lightbox-close {
    position: absolute;
    top: 20px;
    right: 20px;
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.3);
    color: #fff;
    font-size: 24px;
    line-height: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    z-index: 100000;
    transition: background 0.2s;
}

.lightbox-close:hover {
    background: rgba(255, 255, 255, 0.2);
}

/* 防止背景滚动 */
body.lightbox-open {
    overflow: hidden;
}


/* =========================================================
   Lightbox Image
   ========================================================= */

.lightbox img {
    display: block;

    width: auto !important;
    height: auto !important;

    max-width: 92vw !important;
    max-height: 88vh !important;

    object-fit: contain;

    margin: 0 !important;

    cursor: default;

    box-shadow:
        0 20px 60px rgba(0, 0, 0, 0.45);

    transform: scale(0.96);

    transition:
        transform 0.2s ease;
}

.lightbox.is-visible img {
    transform: scale(1);
}


/* =========================================================
   Lightbox Close Button
   ========================================================= */

.lightbox-close {
    position: absolute !important;

    top: 1.5rem !important;
    right: 1.5rem !important;

    z-index: 1000000 !important;

    width: 2.5rem;
    height: 2.5rem;

    display: flex;

    align-items: center;
    justify-content: center;

    padding: 0;

    border: 1px solid rgba(255, 255, 255, 0.35);

    background: rgba(0, 0, 0, 0.25);

    color: #ffffff;

    font-family: var(--font-sans);

    font-size: 1.75rem;
    font-weight: 300;

    line-height: 1;

    cursor: pointer;

    transition:
        background 0.2s ease,
        border-color 0.2s ease;
}

.lightbox-close:hover {
    background: rgba(255, 255, 255, 0.12);

    border-color: rgba(255, 255, 255, 0.7);
}


/* =========================================================
   Prevent Background Scrolling
   ========================================================= */

body.lightbox-open {
    overflow: hidden !important;
}


/* =========================================================
   Mobile Lightbox
   ========================================================= */

@media (max-width: 640px) {
    .lightbox {
        padding: 1rem !important;
    }

    .lightbox img {
        max-width: 96vw !important;
        max-height: 84vh !important;
    }

    .lightbox-close {
        top: 0.75rem !important;
        right: 0.75rem !important;

        width: 2.25rem;
        height: 2.25rem;

        font-size: 1.5rem;
    }
}

.media-edit {
    position: absolute;
    top: .75rem;
    right: 4.5rem;
    z-index: 10;
    padding: .4rem .7rem;
    border: 1px solid rgba(255,255,255,.5);
    background: rgba(0,0,0,.65);
    color: white;
    font-family: var(--font-mono);
    font-size: .65rem;
}

.media-thumb:hover .media-edit {
    opacity: 1;
}

.edit-dialog {
    position: fixed;
    inset: 0;
    z-index: 9999;
    background: rgba(0,0,0,.45);
    display:flex;
    align-items:center;
    justify-content:center;
    padding:1rem;
}

.edit-box {
    background:white;
    width:min(520px,95vw);
    padding:2rem;
    display:flex;
    flex-direction:column;
    gap: .8rem;
}

.edit-box input,
.edit-box select,
.edit-box textarea {
    width:100%;
    padding:.7rem;
}

.edit-actions {
    display:flex;
    gap:1rem;
    margin-top:1rem;
}


/* Upload image preview */

.selected-files {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-top: 1.2rem;
}

.preview-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: .8rem;
    border: 1px solid var(--color-line);
    background: var(--color-bg);
}

.preview-item img {
    width: 96px;
    height: 96px;
    object-fit: cover;
    flex-shrink: 0;
}

.preview-item strong {
    display: block;
    font-size: .9rem;
    word-break: break-all;
}

.preview-item span {
    display: block;
    color: var(--color-muted);
    font-size: .75rem;
    margin-top: .3rem;
}

.preview-video {
    min-height: 60px;
}


.cover-manager {
    margin-top: 2rem;
    display:flex;
    gap:1rem;
}

.cat-image-placeholder img {
    width:100%;
    height:100%;
    object-fit:cover;
}

@media(max-width:640px){
    .cover-manager{
        flex-direction:column;
    }
}


/* 猫咪封面选择器 */

.cover-picker {
    position: fixed;
    inset: 0;
    z-index: 9999;
    background: rgba(0,0,0,.45);
    display:flex;
    align-items:center;
    justify-content:center;
    padding:1rem;
}

.cover-picker-box {
    width:min(900px,95vw);
    max-height:90vh;
    overflow:auto;
    background:white;
    padding:2rem;
}

.cover-picker-grid {
    display:grid;
    grid-template-columns:repeat(4,1fr);
    gap:1rem;
    margin:1.5rem 0;
}

.cover-option {
    border:1px solid #ddd;
    background:white;
    padding:0;
    text-align:left;
}

.cover-option img {
    width:100%;
    aspect-ratio:1;
    object-fit:cover;
}

.cover-option span {
    display:block;
    padding:.6rem;
    font-size:.8rem;
}

.cover-option:hover {
    border-color:#111;
}

.cover-cancel {
    padding:.6rem 1rem;
}

@media(max-width:640px){
    .cover-picker-grid {
        grid-template-columns:repeat(2,1fr);
    }
}