/* ============================================================
   本地视频 NAS 样式
   风格：白底为主，蓝灰辅色，大间距，字清爽
   ============================================================ */

/* --- 全局重置 --- */
* { box-sizing: border-box; }
html, body {
    margin: 0;
    padding: 0;
    height: 100%;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
                 "Microsoft YaHei", Arial, sans-serif;
    font-size: 14px;
    color: #333;
    background: #f5f7fa;
}
a { color: #2c5be5; text-decoration: none; }
a:hover { text-decoration: underline; }

/* --- 整体布局：左侧边栏 + 右内容区 --- */
.app {
    display: flex;
    min-height: 100vh;
}

/* === 左侧边栏 === */
.sidebar {
    width: 220px;
    flex-shrink: 0;
    background: #fff;
    border-right: 1px solid #ebeef5;
    padding: 18px 0;
    position: sticky;
    top: 0;
    height: 100vh;
    overflow-y: auto;
}
.sidebar .logo {
    padding: 0 18px 16px;
    font-size: 18px;
    font-weight: 600;
    color: #1f2937;
    border-bottom: 1px solid #f0f2f5;
    margin-bottom: 12px;
}
.sidebar .nav-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 9px 18px;
    color: #4b5563;
    border-left: 3px solid transparent;
    cursor: pointer;
}
.sidebar .nav-item:hover {
    background: #f5f7fa;
    color: #111;
}
.sidebar .nav-item.active {
    background: #eef3ff;
    border-left-color: #2c5be5;
    color: #2c5be5;
    font-weight: 600;
}
.sidebar .nav-item .count {
    font-size: 12px;
    color: #9ca3af;
    background: #f0f2f5;
    border-radius: 10px;
    padding: 1px 8px;
}
.sidebar .nav-item.active .count {
    background: #2c5be5;
    color: #fff;
}
.sidebar .folder-icon {
    color: #b0b7c0;
    margin-right: 6px;
    font-size: 14px;
}

/* === 右侧主区域 === */
.main {
    flex: 1;
    min-width: 0; /* 关键：防止子元素撑爆 flex 容器 */
    display: flex;
    flex-direction: column;
}

/* 顶部栏 */
.topbar {
    height: 56px;
    background: #fff;
    border-bottom: 1px solid #ebeef5;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: sticky;
    top: 0;
    z-index: 10;
}
.topbar .left,
.topbar .right {
    display: flex;
    align-items: center;
    gap: 12px;
}
.breadcrumb {
    color: #6b7280;
    font-size: 14px;
}
.breadcrumb b {
    color: #1f2937;
}
.search-box {
    position: relative;
    width: 320px;
}
.search-box input {
    width: 100%;
    height: 36px;
    border: 1px solid #d9dde3;
    border-radius: 8px;
    padding: 0 14px 0 36px;
    outline: none;
    font-size: 14px;
    background: #f8fafc;
    transition: all .15s;
}
.search-box input:focus {
    border-color: #2c5be5;
    background: #fff;
    box-shadow: 0 0 0 3px rgba(44, 91, 229, 0.12);
}
.search-box::before {
    content: "🔍";
    position: absolute;
    left: 12px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 14px;
    opacity: .5;
}
.btn {
    height: 36px;
    padding: 0 14px;
    border-radius: 8px;
    border: 1px solid transparent;
    font-size: 14px;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    transition: all .15s;
    font-weight: 500;
}
.btn-primary {
    background: #2c5be5;
    color: #fff;
}
.btn-primary:hover { background: #1e4acc; }
.btn-secondary {
    background: #fff;
    color: #4b5563;
    border-color: #d9dde3;
}
.btn-secondary:hover {
    background: #f5f7fa;
    border-color: #b0b7c0;
}
.btn-danger {
    background: #fff;
    color: #dc2626;
    border-color: #fecaca;
}
.btn-danger:hover { background: #fef2f2; }

/* 筛选条（排序 + 下拉） */
.toolbar {
    padding: 14px 24px 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 10px;
}
.toolbar .sort-wrap {
    display: flex;
    align-items: center;
    gap: 8px;
    color: #6b7280;
}
select.sort-select {
    height: 32px;
    padding: 0 10px;
    border-radius: 6px;
    border: 1px solid #d9dde3;
    background: #fff;
    outline: none;
    font-size: 13px;
}

/* === 视频网格（首页+文件夹页共用） === */
.content {
    padding: 16px 24px 40px;
    flex: 1;
}
.video-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 20px;
}
.video-card {
    background: #fff;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 1px 3px rgba(0,0,0,0.05);
    border: 1px solid #eef0f3;
    cursor: pointer;
    transition: transform .15s, box-shadow .15s;
    position: relative;
}
.video-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 22px rgba(0,0,0,0.08);
}
.video-card .cover {
    position: relative;
    width: 100%;
    aspect-ratio: 16/9;
    background: #e5e7eb;
    overflow: hidden;
}
.video-card .cover img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}
.video-card .cover .duration {
    position: absolute;
    right: 8px;
    bottom: 8px;
    background: rgba(0,0,0,0.75);
    color: #fff;
    font-size: 12px;
    padding: 2px 7px;
    border-radius: 4px;
}
.video-card .cover .no-thumb {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #9ca3af;
    font-size: 40px;
}
.video-card .info {
    padding: 10px 12px 12px;
}
.video-card .info .name {
    font-size: 14px;
    color: #1f2937;
    line-height: 1.4;
    margin-bottom: 6px;
    /* 两行省略号 */
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    height: 2.8em;
}
.video-card .info .meta {
    font-size: 12px;
    color: #9ca3af;
    display: flex;
    justify-content: space-between;
}

/* 空状态 */
.empty-state {
    padding: 80px 20px;
    text-align: center;
    color: #9ca3af;
}
.empty-state .big-icon {
    font-size: 64px;
    margin-bottom: 16px;
    opacity: .4;
}
.empty-state .tip {
    font-size: 16px;
    margin-bottom: 6px;
    color: #6b7280;
}
.empty-state .sub {
    font-size: 13px;
}

/* 分页 */
.pager {
    margin-top: 30px;
    text-align: center;
    display: flex;
    gap: 8px;
    justify-content: center;
    flex-wrap: wrap;
}
.pager a, .pager span {
    display: inline-block;
    min-width: 34px;
    height: 34px;
    line-height: 34px;
    padding: 0 10px;
    text-align: center;
    border-radius: 6px;
    border: 1px solid #e5e7eb;
    color: #4b5563;
    background: #fff;
    font-size: 13px;
}
.pager a:hover {
    border-color: #2c5be5;
    color: #2c5be5;
    text-decoration: none;
}
.pager .current {
    background: #2c5be5;
    border-color: #2c5be5;
    color: #fff;
}

/* === 播放页 === */
.player-wrap {
    display: grid;
    grid-template-columns: 1fr 320px;
    gap: 20px;
}
@media (max-width: 900px) {
    .player-wrap { grid-template-columns: 1fr; }
}
.player-box {
    background: #000;
    border-radius: 12px;
    overflow: hidden;
    aspect-ratio: 16/9;
}
.player-box video {
    width: 100%;
    height: 100%;
    display: block;
    background: #000;
}
.info-card {
    background: #fff;
    border: 1px solid #eef0f3;
    border-radius: 12px;
    padding: 18px 20px;
}
.info-card h2 {
    margin: 0 0 14px;
    font-size: 17px;
    color: #1f2937;
    word-break: break-all;
    line-height: 1.4;
}
.info-card .row {
    display: flex;
    justify-content: space-between;
    padding: 8px 0;
    border-bottom: 1px dashed #f0f2f5;
    font-size: 13px;
}
.info-card .row:last-of-type {
    border-bottom: none;
}
.info-card .row .k {
    color: #9ca3af;
}
.info-card .row .v {
    color: #374151;
    text-align: right;
    word-break: break-all;
    max-width: 60%;
}
.info-card .actions {
    margin-top: 16px;
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

/* === 上传页 === */
.upload-page {
    padding: 30px;
}
.drop-zone {
    border: 2px dashed #c7d2fe;
    border-radius: 14px;
    background: #fff;
    padding: 60px 20px;
    text-align: center;
    cursor: pointer;
    transition: all .15s;
    color: #6b7280;
}
.drop-zone:hover,
.drop-zone.dragover {
    border-color: #2c5be5;
    background: #f5f8ff;
    color: #2c5be5;
}
.drop-zone .big {
    font-size: 56px;
    margin-bottom: 12px;
}
.drop-zone .title {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 6px;
    color: #1f2937;
}
.drop-zone .sub {
    font-size: 13px;
    color: #9ca3af;
}
.upload-list {
    margin-top: 22px;
    display: flex;
    flex-direction: column;
    gap: 10px;
}
.upload-item {
    background: #fff;
    border: 1px solid #eef0f3;
    border-radius: 10px;
    padding: 12px 14px;
    display: flex;
    gap: 12px;
    align-items: center;
}
.upload-item .name {
    flex: 1;
    color: #374151;
    word-break: break-all;
}
.upload-item .bar {
    width: 160px;
    height: 8px;
    background: #eef0f3;
    border-radius: 4px;
    overflow: hidden;
}
.upload-item .bar .fill {
    height: 100%;
    background: linear-gradient(90deg, #4f75ee, #2c5be5);
    transition: width .2s;
}
.upload-item .percent {
    width: 48px;
    text-align: right;
    font-size: 13px;
    color: #6b7280;
}
.upload-item .status {
    width: 64px;
    font-size: 13px;
    text-align: right;
}
.upload-item .status.ok  { color: #059669; }
.upload-item .status.err { color: #dc2626; }

/* === 错误页 === */
.error-page {
    padding: 80px 20px;
    text-align: center;
}
.error-page .big {
    font-size: 56px;
    margin-bottom: 16px;
}
.error-page h1 {
    color: #1f2937;
    margin-bottom: 10px;
}
.error-page .msg {
    color: #6b7280;
    margin-bottom: 20px;
}

/* === 响应式（手机 / 小屏） === */
@media (max-width: 720px) {
    .app { flex-direction: column; }
    .sidebar {
        width: 100%;
        height: auto;
        max-height: 40vh;
        position: static;
        border-right: none;
        border-bottom: 1px solid #ebeef5;
    }
    .topbar { padding: 0 12px; }
    .search-box { width: 200px; }
    .toolbar, .content { padding-left: 12px; padding-right: 12px; }
    .video-grid {
        grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
        gap: 12px;
    }
    .btn { padding: 0 10px; height: 32px; font-size: 13px; }
}