/* =========================================================
   沫琪交响曲 · 页面样式
   侧边栏 + 物品图鉴
   ========================================================= */

#sidebar {
    position: fixed;
    top: var(--header-h);
    left: 0;
    z-index: 95;
    width: 268px;
    height: calc(100vh - var(--header-h));
    padding: 1.6rem 1rem 2rem;
    overflow-y: auto;
    background: var(--surface);
    border-right: 1px solid var(--border);
    box-shadow: 10px 0 32px rgba(16, 50, 32, 0.04);
    transition: transform 0.35s var(--ease);
}

#sidebar ul {
    display: grid;
    gap: 0.25rem;
    margin: 0;
    padding: 0;
    list-style: none;
}

#sidebar a {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    padding: 0.7rem 0.85rem;
    border-radius: 12px;
    color: var(--text-light);
    font-size: 0.94rem;
    font-weight: 500;
    white-space: nowrap;
    transition: background var(--transition), color var(--transition);
}

#sidebar a i {
    width: 20px;
    font-size: 0.95rem;
    text-align: center;
    color: var(--text-faint);
    transition: color var(--transition), transform var(--transition);
}

#sidebar a:hover {
    background: var(--primary-soft);
    color: var(--primary-strong);
}

#sidebar a:hover i {
    color: var(--primary-strong);
    transform: translateX(2px);
}

.content-container {
    margin-left: 268px;
    transition: margin-left 0.35s var(--ease);
}

.content-container main {
    max-width: 1120px;
    padding: 2.2rem 2rem 4.5rem;
}

/* 收起侧边栏 */
body.sidebar-collapsed #sidebar {
    transform: translateX(-100%);
}

body.sidebar-collapsed .content-container {
    margin-left: 0;
}

.sidebar-backdrop {
    display: none;
}

/* 页面标题里的版本信息与台词 */
.content-container .page-header {
    margin-bottom: 2.2rem;
}

.content-container .page-header p {
    max-width: 720px;
    margin: 0.3rem auto;
    font-size: 0.96rem;
}

.content-container .page-header p strong {
    font-weight: 800;
    color: var(--primary-strong);
}

/* 物品图鉴 */
.item-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(290px, 1fr));
    gap: 1.1rem;
    margin-top: 1.2rem;
}

.item-card {
    padding: 1.15rem 1.25rem;
    border-radius: 16px;
    background: var(--surface-2);
    border: 1px solid var(--border);
    transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition);
}

.item-card:hover {
    transform: translateY(-4px);
    border-color: rgba(34, 197, 94, 0.32);
    box-shadow: 0 14px 28px rgba(16, 50, 32, 0.1);
}

[data-theme="dark"] .item-card:hover {
    box-shadow: 0 14px 28px rgba(0, 0, 0, 0.35);
}

.item-header {
    display: flex;
    align-items: center;
    gap: 0.85rem;
    margin-bottom: 0.7rem;
}

.item-header img {
    width: 44px;
    height: 44px;
    padding: 4px;
    object-fit: contain;
    border-radius: 11px;
    background: #fbfdfb;
    border: 1px solid var(--border);
    box-shadow: 0 4px 10px rgba(16, 50, 32, 0.08);
    image-rendering: pixelated;
    image-rendering: crisp-edges;
}

.item-header h4 {
    font-size: 1.02rem;
    font-weight: 600;
    color: var(--text);
}

.item-content p {
    margin: 0.3rem 0;
    color: var(--text-light);
    font-size: 0.9rem;
    line-height: 1.7;
}

/* 平板 / 手机：侧边栏改为抽屉 */
@media (max-width: 992px) {
    #sidebar {
        width: 280px;
        transform: translateX(-100%);
        z-index: 120;
        box-shadow: var(--shadow-lg);
    }

    body.sidebar-open #sidebar {
        transform: translateX(0);
    }

    .content-container,
    body.sidebar-collapsed .content-container {
        margin-left: 0;
    }

    .content-container main {
        max-width: var(--max);
        padding: 1.8rem 1rem 3.4rem;
    }

    .sidebar-backdrop {
        display: block;
        position: fixed;
        inset: var(--header-h) 0 0;
        z-index: 110;
        background: rgba(4, 12, 7, 0.5);
        -webkit-backdrop-filter: blur(3px);
        backdrop-filter: blur(3px);
        opacity: 0;
        visibility: hidden;
        transition: opacity 0.3s ease, visibility 0.3s;
    }

    body.sidebar-open .sidebar-backdrop {
        opacity: 1;
        visibility: visible;
    }

    body.sidebar-open {
        overflow: hidden;
    }
}

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

    .item-card {
        padding: 1rem 1.05rem;
    }

    .content-container .page-header p {
        font-size: 0.92rem;
    }
}