/* ===== Utilities List Page / 工具列表页 =====
 * 用途：工具集合列表页样式
 * 负责：.utilities-header 页头、.utilities-grid 列表容器、.utility-card 卡片
 * 使用页面：utility.html
 */
.utilities-header {
    text-align: center;
    padding: 72px 32px 48px;
}

.utilities-header h1 {
    font-family: var(--serif);
    font-size: 44px;
    font-weight: 500;
    letter-spacing: -1px;
    margin-bottom: 10px;
}

.utilities-header p {
    color: var(--text-light);
    max-width: 560px;
    margin: 0 auto;
    line-height: 1.6;
}

/* ===== Back Link ===== */
.back-link {
    display: inline-block;
    color: var(--text-light);
    font-size: 14px;
    margin-bottom: 24px;
    text-decoration: none;
}

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

/* ===== Grid ===== */
.utilities-grid {
    max-width: 960px;
    margin: 0 auto;
    padding: 0 32px 88px;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
}

/* ===== Card ===== */
.utility-card {
    display: flex;
    flex-direction: column;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 28px 32px;
    text-decoration: none;
    color: var(--text);
    transition: border-color 0.15s, transform 0.15s;
    position: relative;
}

.utility-card:hover {
    border-color: var(--accent);
    transform: translateY(-2px);
}

.utility-card.is-wip {
    opacity: 0.65;
    cursor: not-allowed;
}

.utility-card.is-wip:hover {
    border-color: var(--border);
    transform: none;
}

.utility-card h3 {
    font-family: var(--serif);
    font-size: 20px;
    font-weight: 500;
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.utility-card .utility-summary {
    font-size: 14px;
    color: var(--text-light);
    line-height: 1.6;
    flex: 1;
    margin-bottom: 14px;
}

.utility-card .utility-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
}

.utility-tags {
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
}

.utility-tag {
    font-family: var(--sans);
    display: inline-block;
    background: var(--bg-alt);
    color: var(--text-light);
    border: 1px solid var(--border);
    border-radius: 100px;
    padding: 3px 12px;
    font-size: 12px;
    font-weight: 500;
}

.utility-badge {
    font-size: 12px;
    font-weight: 500;
    padding: 3px 10px;
    border-radius: 100px;
}

.utility-badge.ready {
    background: #e6f4ea;
    color: #1e7e34;
}

.utility-badge.wip {
    background: var(--bg-alt);
    color: var(--text-muted);
}

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