/**
 * Shared UI primitives for blog-backed layouts and base.html consumers.
 * Directory/compare pages use pages/directory.css for button overrides.
 */
.bg-subtle {
    background-color: var(--bg-subtle);
}

/* Buttons & inputs (clinical — dark primary) */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 20px;
    font-weight: 500;
    font-size: 14px;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-speed) ease;
    border: 1px solid transparent;
}

.btn-sm {
    padding: 6px 12px;
    font-size: 13px;
}

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

/* .btn.btn-primary: higher specificity than nested `a:hover` rules on some pages */
.btn.btn-primary:hover {
    background-color: var(--btn-primary-hover-bg);
    color: var(--btn-primary-hover-fg);
    box-shadow: var(--shadow-micro);
}

.btn-outline {
    background-color: transparent;
    color: var(--text-primary);
    border: 1px solid var(--border-light);
}

.btn-outline:hover {
    border-color: var(--border-focus);
    background-color: var(--bg-subtle);
}

.input-field {
    padding: 10px 16px;
    font-size: 14px;
    border: 1px solid var(--border-light);
    border-radius: var(--radius-md);
    outline: none;
    width: 100%;
    transition: border-color var(--transition-speed);
    font-family: inherit;
}

.input-field:focus {
    border-color: var(--border-focus);
    box-shadow: 0 0 0 2px var(--mc-blue-bg);
}

/* Tags */
.tag {
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    padding: 4px 8px;
    border-radius: var(--radius-sm);
    letter-spacing: 0.05em;
    display: inline-flex;
    align-items: center;
    gap: 4px;
    border: 1px solid var(--border-light);
    color: var(--text-secondary);
    background: var(--bg-subtle);
    transition: all var(--transition-speed);
}

.tag-blue {
    color: var(--mc-blue-text);
    border-color: var(--mc-blue-border);
    background: var(--mc-blue-bg);
}

/* Blog list / grid (base.html) */
.section-padding {
    padding: 64px 0;
}

.section-header {
    text-align: center;
    margin-bottom: 64px;
}

.section-header h1,
.section-header h2 {
    font-size: 36px;
    margin-bottom: 16px;
}

.section-header p {
    font-size: 18px;
    color: var(--text-secondary);
    max-width: 650px;
    margin: 0 auto;
    font-weight: 500;
}

.blog-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.blog-card {
    display: flex;
    flex-direction: column;
    background: var(--bg-base);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: box-shadow var(--transition-speed), border-color var(--transition-speed);
}

.blog-card:hover {
    box-shadow: var(--shadow-sm);
    border-color: var(--border-hover);
}

.blog-img {
    height: 200px;
    background: var(--mc-blue-bg);
    background-size: cover;
    background-position: center;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-tertiary);
    font-size: 56px;
    transition: color var(--transition-speed);
}

.blog-card:hover .blog-img {
    color: var(--accent-blue);
}

.blog-content {
    padding: 32px 24px;
    background: var(--bg-base);
    flex: 1;
    display: flex;
    flex-direction: column;
}

.blog-category {
    font-size: 12px;
    font-weight: 700;
    text-transform: uppercase;
    color: var(--mc-blue-text);
    margin-bottom: 12px;
    display: inline-block;
    background: var(--mc-blue-bg);
    padding: 4px 10px;
    border-radius: 100px;
    align-self: flex-start;
}

.blog-content h3 {
    font-size: 19px;
    margin-bottom: 12px;
    line-height: 1.4;
    transition: color var(--transition-speed);
}

.blog-card:hover .blog-content h3 {
    color: var(--accent-blue);
}

.blog-content p {
    font-size: 15px;
    color: var(--text-secondary);
    margin-bottom: 24px;
    font-weight: 500;
    flex-grow: 1;
    line-height: 1.6;
}

.read-more {
    font-weight: 700;
    color: var(--accent-blue);
    text-transform: uppercase;
    font-size: 13px;
    letter-spacing: 0.5px;
    display: flex;
    align-items: center;
    gap: 6px;
}

.newsletter-form-widget {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.newsletter-form-widget .btn {
    width: 100%;
}

@media (max-width: 992px) {
    .blog-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .container {
        padding: 0 16px;
    }

    .blog-grid {
        grid-template-columns: 1fr;
    }
}

/* Staff / OS edit chrome (blog post + platform) */
.platform-back-bar-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 12px;
}

.platform-breadcrumb {
    min-width: 0;
}

.platform-breadcrumb__list {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0;
    font-size: 13px;
    font-weight: 600;
    line-height: 1.35;
}

.platform-breadcrumb__item {
    display: inline-flex;
    align-items: center;
    gap: 0;
    color: var(--text-secondary);
}

.platform-breadcrumb__item:not(:last-child)::after {
    content: ">";
    margin: 0 10px;
    color: var(--text-tertiary);
    font-weight: 600;
    user-select: none;
}

.platform-breadcrumb__item a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: var(--transition);
}

.platform-breadcrumb__item a:hover {
    color: var(--accent-primary);
}

.platform-breadcrumb__item--current {
    color: var(--text-primary);
    min-width: 0;
}

.platform-breadcrumb__current {
    display: inline-block;
    max-width: min(100vw - 120px, 42rem);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    vertical-align: bottom;
}

.staff-os-edit-link i {
    font-size: 13px;
    opacity: 0.88;
}

.blog-staff-edit-row {
    display: flex;
    justify-content: flex-end;
    margin-bottom: 12px;
}