:root {
    --bg: #0b0c10;
    --bg-gradient: radial-gradient(1200px 600px at 10% 0%, #0d1120 0%, #0a0c14 50%, #090b12 100%);
    --panel: #11131a;
    --muted: #8b93a7;
    --text: #e9ecf1;
    --brand: #6aa3ff;
    --brand-2: #9b7bff;
    --ok: #2ecc71;
    --warn: #f39c12;
    --danger: #e74c3c;
    --danger-bg: #2a0f12;
    --radius: 16px;
    --shadow: 0 10px 30px rgba(0,0,0,.25);
    --border: #22263a;
}

.light-theme {
    --bg: #f5f7fa;
    --bg-gradient: #f5f7fa;
    --panel: #ffffff;
    --muted: #6b7280;
    --text: #1f2937;
    --brand: #4a90e2;
    --brand-2: #8a6ef8;
    --danger-bg: #fef2f2;
    --shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    --border: #e5e7eb;
}

html, body {
    height: 100%;
}

body {
    margin: 0;
    background: var(--bg-gradient);
    color: var(--text);
    font: 14px/1.5 system-ui, -apple-system, Segoe UI, Roboto, Noto Sans, Helvetica, Arial;
    /* 添加平滑过渡 */
    transition: background-color 0.4s ease, color 0.4s ease;
}

.wrap {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

header {
    display: flex;
    gap: 12px;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 18px;
}

.brand {
    display: flex;
    gap: 12px;
    align-items: center;
}

/* .logo {
    width: 36px;
    height: 36px;
    border-radius: 10px;
    background: linear-gradient(135deg, var(--brand), var(--brand-2));
    box-shadow: var(--shadow);
} */

h1 {
    font-size: 18px;
    margin: 0;
    letter-spacing: .5px;
}

.actions {
    display: flex;
    gap: 10px;
    align-items: center;
    flex-wrap: wrap;
}

.btn {
    border: none;
    padding: 10px 14px;
    border-radius: 12px;
    background: var(--panel);
    color: var(--text);
    cursor: pointer;
    box-shadow: var(--shadow);
    transition: transform .12s ease, background 0.4s ease, color 0.4s ease;
}

.btn:hover {
    transform: translateY(-1px);
}

.btn.primary {
    background: linear-gradient(135deg, var(--brand), var(--brand-2));
    color: #ffffff;
}

.btn.danger {
    background: var(--danger-bg);
    color: var(--danger);
}

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

.toolbar {
    display: flex;
    gap: 10px;
    align-items: center;
    flex-wrap: wrap;
    margin: 10px 0 14px;
}

.input {
    background: var(--panel);
    border: 1px solid var(--border);
    color: var(--text);
    padding: 10px 12px;
    border-radius: 12px;
    min-width: 200px;
    /* 添加平滑过渡 */
    transition: background 0.4s ease, border-color 0.4s ease, color 0.4s ease;
}

.crumbs {
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
    align-items: center;
}

.crumbs a {
    color: var(--brand);
    text-decoration: none;
    background: var(--panel);
    padding: 6px 10px;
    border-radius: 999px;
    /* 添加平滑过渡 */
    transition: background 0.4s ease;
}

.crumbs span {
    opacity: .8;
}

.grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
    gap: 14px;
    min-height: 160px;
}

.card {
    position: relative;
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 14px;
    box-shadow: var(--shadow);
    cursor: pointer;
    display: flex;
    flex-direction: column;
    gap: 10px;
    /* 添加平滑过渡 */
    transition: background 0.4s ease, border-color 0.4s ease, box-shadow 0.4s ease;
}

.card:hover {
    outline: 1px solid var(--brand);
    transform: translateY(-2px);
}

.icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: var(--panel);
    /* 添加平滑过渡 */
    transition: background 0.4s ease;
}

.name {
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.meta {
    font-size: 12px;
    color: var(--muted);
}

.more {
    position: absolute;
    top: 8px;
    right: 8px;
    background: var(--panel);
    border: 1px solid var(--border);
    color: var(--text);
    border-radius: 10px;
    padding: 4px 8px;
    cursor: pointer;
    /* 添加平滑过渡 */
    transition: background 0.4s ease, border-color 0.4s ease;
}

.more:hover {
    border-color: var(--brand);
}

.dropzone {
    border: 1px dashed var(--border);
    border-radius: 12px;
    padding: 12px;
    text-align: center;
    /* 添加平滑过渡 */
    transition: border-color 0.4s ease;
}

.dropzone.dragover {
    background: var(--panel);
}

.skeleton {
    height: 120px;
    border-radius: var(--radius);
    background: linear-gradient(90deg, var(--panel), color-mix(in srgb, var(--panel), var(--bg) 50%), var(--panel));
    background-size: 200% 100%;
    animation: sk 1.2s infinite;
}

@keyframes sk {
    0% {
        background-position: 0 0;
    }
    100% {
        background-position: -200% 0;
    }
}

dialog {
    border: none;
    border-radius: 16px;
    background: var(--panel);
    color: var(--text);
    padding: 0;
    box-shadow: var(--shadow);
    width: min(520px, 92vw);
    /* 添加平滑过渡 */
    transition: background 0.4s ease, color 0.4s ease, box-shadow 0.4s ease;
}

.dlg-head {
    padding: 14px 18px;
    border-bottom: 1px solid var(--border);
    display: flex;
    justify-content: space-between;
    align-items: center;
    /* 添加平滑过渡 */
    transition: border-color 0.4s ease;
}

.dlg-body {
    padding: 18px;
}

.close {
    all: unset;
    cursor: pointer;
    padding: 8px;
    border-radius: 10px;
}

.kbd {
    font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, 'Liberation Mono', monospace;
    background: var(--panel);
    border: 1px solid var(--border);
    padding: 6px 10px;
    border-radius: 8px;
    width: 80%;
    overflow-wrap: break-word;
    /* 添加平滑过渡 */
    transition: background 0.4s ease, border-color 0.4s ease, color 0.4s ease;
}

.toast {
    position: fixed;
    bottom: 16px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--panel);
    border: 1px solid var(--border);
    padding: 10px 14px;
    border-radius: 12px;
    box-shadow: var(--shadow);
    display: none;
    /* 添加平滑过渡 */
    transition: background 0.4s ease, border-color 0.4s ease, box-shadow 0.4s ease;
}

footer {
    margin-top: 20px;
    text-align: center;
    color: var(--muted);
}

@media (max-width: 600px) {
    .actions {
        flex-wrap: wrap;
    }
}

/* 图片预览样式 */
.img-preview {
    text-align: center;
    margin-bottom: 12px;
}

.img-preview img {
    max-width: 100%;
    max-height: 300px;
    border-radius: 12px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    transition: transform 0.2s ease;
}

.img-preview img:hover {
    transform: scale(1.02);
}

/* 链接输入框 + 按钮 */
.link-box {
    display: flex;
    gap: 8px;
    align-items: center;
}

.link-box input[type="text"] {
    flex: 1;
    padding: 8px;
    border-radius: 8px;
    border: 1px solid var(--border);
    background: var(--panel);
    font-size: 14px;
    color: var(--text);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    cursor: pointer;
    /* 添加平滑过渡 */
    transition: background 0.4s ease, border-color 0.4s ease, color 0.4s ease;
}

.copy-btn {
    padding: 8px 12px;
    background: var(--brand);
    color: #fff;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-size: 14px;
    transition: background 0.2s ease;
}

.copy-btn:hover {
    background: var(--brand-2);
}