.case-index {
    background: var(--color-surface);
}

.case-index-hero {
    position: relative;
    z-index: 0;
    overflow: hidden;
    padding: var(--space-9) 0 4.5rem;
    background:
        radial-gradient(circle at 88% 12%, rgba(239, 68, 68, 0.08), transparent 36%),
        linear-gradient(180deg, #fff 0%, #fff8f8 100%);
}

.case-index-hero::after {
    content: "";
    position: absolute;
    inset: 8% -8% auto 48%;
    height: 70%;
    background-image:
        linear-gradient(115deg, transparent 40%, rgba(239, 68, 68, 0.08) 40.5%, transparent 41%),
        linear-gradient(155deg, transparent 55%, rgba(239, 68, 68, 0.06) 55.5%, transparent 56%);
    pointer-events: none;
}

.case-index-hero-inner {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: minmax(0, 1.3fr) minmax(16rem, 0.9fr);
    gap: var(--space-8);
    align-items: center;
}

.case-index-title {
    max-width: 16ch;
    margin: var(--space-4) 0 var(--space-3);
    font-size: clamp(2rem, 4vw, 3.1rem);
    line-height: 1.15;
    color: var(--color-heading);
}

.impact-title-accent {
    color: var(--color-primary);
}

.case-index-lede {
    max-width: 38rem;
    margin: 0;
    font-size: var(--text-base);
    line-height: 1.7;
    color: var(--color-body);
}

.case-index-stats {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.85rem;
}

.case-index-stat {
    display: flex;
    align-items: flex-start;
    gap: 0.7rem;
    padding: 0.9rem 1rem;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
}

.case-index-stat-icon {
    color: var(--color-primary);
}

.case-index-stat-icon svg {
    width: 1.2rem;
    height: 1.2rem;
}

.case-index-stat strong,
.case-index-stat span {
    display: block;
}

.case-index-stat strong {
    font-size: 0.92rem;
    color: var(--color-heading);
}

.case-index-stat span {
    margin-top: 0.15rem;
    font-size: 0.75rem;
    color: var(--color-muted);
}

.case-index-body {
    position: relative;
    z-index: 2;
    display: flex;
    flex-direction: column;
    gap: var(--space-6);
    padding-bottom: var(--space-10);
}

.case-index-filters {
    position: relative;
    z-index: 3;
    display: grid;
    grid-template-columns: minmax(14rem, 1.2fr) minmax(0, 2fr) auto auto;
    gap: 0.85rem;
    align-items: center;
    padding: 1rem 1.1rem;
    margin-top: -2.75rem;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
}

.case-index-search {
    display: flex;
    align-items: center;
    gap: 0.55rem;
    min-width: 0;
    padding: 0.7rem 0.9rem;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    background: #fff;
}

.case-index-search-icon {
    color: var(--color-muted);
}

.case-index-search-icon svg {
    width: 1.05rem;
    height: 1.05rem;
}

.case-index-search input {
    width: 100%;
    border: 0;
    outline: 0;
    background: transparent;
    font: inherit;
    color: var(--color-heading);
}

.case-index-filter-controls {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 0.65rem;
    align-items: start;
}

.case-index-dropdown {
    position: relative;
    min-width: 0;
}

.case-index-dropdown-toggle {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.5rem;
    width: 100%;
    padding: 0.7rem 0.85rem;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    background: #fff;
    color: var(--color-heading);
    font: inherit;
    cursor: pointer;
    list-style: none;
}

.case-index-dropdown-toggle::-webkit-details-marker,
.case-index-dropdown-toggle::marker {
    display: none;
    content: none;
}

.case-index-dropdown.is-active .case-index-dropdown-toggle,
.case-index-dropdown[open] .case-index-dropdown-toggle {
    border-color: var(--color-primary);
}

.case-index-dropdown-label {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.case-index-dropdown-caret {
    flex: 0 0 auto;
    color: var(--color-muted);
    transform: rotate(180deg);
    transition: transform 0.15s ease;
}

.case-index-dropdown-caret svg {
    width: 0.95rem;
    height: 0.95rem;
    display: block;
}

.case-index-dropdown[open] .case-index-dropdown-caret {
    transform: rotate(0deg);
}

.case-index-dropdown-panel {
    position: absolute;
    z-index: 6;
    top: calc(100% + 0.35rem);
    left: 0;
    min-width: 100%;
    width: max(100%, 15rem);
    max-height: 18rem;
    overflow: auto;
    padding: 0.65rem 0.8rem;
    background: #fff;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
}

.case-index-filter-controls .case-index-dropdown:last-child .case-index-dropdown-panel {
    left: auto;
    right: 0;
}

.case-index-dropdown-options {
    display: flex;
    flex-direction: column;
}

.case-index-check {
    display: flex;
    align-items: flex-start;
    gap: 0.5rem;
    padding: 0.22rem 0;
    color: var(--color-heading);
    font-size: 0.9rem;
    line-height: 1.4;
    cursor: pointer;
}

.case-index-check input {
    flex: 0 0 auto;
    margin: 0.18rem 0 0;
    accent-color: var(--color-primary);
}

.case-index-check--region {
    font-weight: var(--font-semibold);
}

.case-index-geo-group + .case-index-geo-group {
    margin-top: 0.45rem;
}

.case-index-geo-children {
    display: flex;
    flex-direction: column;
    margin-left: 1.35rem;
}

.case-index-select {
    width: 100%;
    padding: 0.7rem 0.85rem;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    background: #fff;
    color: var(--color-heading);
    font: inherit;
}

.case-index-reset {
    border: 0;
    background: transparent;
    color: var(--color-muted);
    font: inherit;
    font-weight: var(--font-semibold);
    cursor: pointer;
}

.case-index-reset:hover {
    color: var(--color-primary);
}

.case-index-apply {
    padding: 0.75rem 1.2rem;
    white-space: nowrap;
}

.case-index-filter-panel {
    display: contents;
}

.case-index-filter-toggle {
    display: none;
}

.case-index-filter-count {
    margin-left: auto;
    min-width: 1.4rem;
    padding: 0.12rem 0.45rem;
    border-radius: 999px;
    background: var(--color-primary);
    color: var(--color-white, #fff);
    font-style: normal;
    font-size: 0.75rem;
    font-weight: var(--font-bold);
    text-align: center;
}

.case-index-filter-caret {
    flex: 0 0 auto;
    margin-left: auto;
    color: var(--color-muted);
    transform: rotate(180deg);
    transition: transform 0.15s ease;
}

.case-index-filter-count + .case-index-filter-caret {
    margin-left: 0;
}

.case-index-filter-caret svg {
    width: 0.95rem;
    height: 0.95rem;
    display: block;
}

.case-index-filter-panel.is-open .case-index-filter-caret {
    transform: rotate(0deg);
}

.case-index-filter-toggle-icon {
    color: var(--color-primary);
}

.case-index-filter-toggle-icon svg {
    width: 1.1rem;
    height: 1.1rem;
    display: block;
}

.case-index-industries-label {
    display: block;
    margin-bottom: 0.85rem;
    font-size: var(--text-xs);
    font-weight: var(--font-bold);
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--color-muted);
}

.case-index-industry-list {
    display: flex;
    gap: 0.75rem;
    overflow-x: auto;
    padding-bottom: 0.25rem;
}

.case-index-chip {
    display: inline-flex;
    align-items: center;
    gap: 0.55rem;
    flex-shrink: 0;
    padding: 0.7rem 0.95rem 0.4rem;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    background: #fff;
    color: var(--color-heading);
    font: inherit;
    cursor: pointer;
}

.case-index-chip em {
    font-style: normal;
    color: var(--color-muted);
}

.case-index-chip.is-active,
.case-index-chip:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
}

.case-index-chip.is-active em,
.case-index-chip:hover em {
    color: var(--color-primary);
}

.case-index-chip-icon {
    color: inherit;
}

.case-index-chip-icon svg {
    width: 1.5rem;
    height: 1.5rem;
}

.case-index-toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    margin-bottom: var(--space-5);
}

.case-index-count {
    margin: 0;
    color: var(--color-muted);
}

.case-index-sort {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    color: var(--color-muted);
    font-size: var(--text-sm);
}

.case-index-sort .case-index-select {
    width: auto;
    min-width: 10rem;
}

.case-index-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 1.25rem;
}

.case-index-card {
    display: flex;
    flex-direction: column;
    min-width: 0;
    overflow: hidden;
    text-decoration: none;
    color: inherit;
    background: #fff;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.case-index-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-md);
}

.case-index-card-media {
    position: relative;
    aspect-ratio: 16 / 10;
    background: linear-gradient(135deg, #fee2e2, #e5e7eb);
}

.case-index-card-media img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.case-index-badge {
    position: absolute;
    top: 0.8rem;
    left: 0.8rem;
    padding: 0.35rem 0.65rem;
    border-radius: 0.35rem;
    background: var(--color-primary);
    color: var(--color-white);
    font-size: 0.72rem;
    font-weight: var(--font-bold);
}

.case-index-card-body {
    display: flex;
    flex-direction: column;
    gap: 0.7rem;
    padding: 1rem 1.05rem 1.1rem;
    flex: 1;
}

.case-index-card-tags,
.case-index-card-caps {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
}

.case-index-tag {
    padding: 0.2rem 0.55rem;
    border-radius: 999px;
    background: #f3f4f6;
    color: var(--color-muted);
    font-size: 0.72rem;
}

.case-index-card-title {
    margin: 0;
    font-size: 1.02rem;
    line-height: 1.35;
    color: var(--color-heading);
}

.case-index-card-summary {
    display: -webkit-box;
    margin: 0;
    overflow: hidden;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 2;
    line-clamp: 2;
    font-size: 0.88rem;
    line-height: 1.5;
    color: var(--color-body);
}

.case-index-card-footer {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    margin-top: auto;
}

.case-index-card-duration {
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
    color: var(--color-muted);
    font-size: 0.78rem;
}

.case-index-card-duration-icon svg {
    width: 0.95rem;
    height: 0.95rem;
}

.case-index-card-arrow {
    margin-left: auto;
    color: var(--color-primary);
}

.case-index-card-arrow svg {
    width: 1.1rem;
    height: 1.1rem;
}

.case-index-empty {
    margin: 0;
    padding: var(--space-8) var(--space-4);
    text-align: center;
    color: var(--color-muted);
}

.nav-menu a.is-active {
    color: var(--color-primary);
    box-shadow: inset 0 -2px 0 var(--color-primary);
}

@media (max-width: 1100px) {
    .case-index-hero-inner,
    .case-index-filters,
    .case-index-grid {
        grid-template-columns: 1fr 1fr;
    }

    .case-index-filters {
        margin-top: 0;
    }

    .case-index-search,
    .case-index-filter-controls {
        grid-column: 1 / -1;
    }

    .case-index-filter-controls {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 720px) {
    .case-index-hero {
        padding: var(--space-6) 0 var(--space-4);
    }

    .case-index-title {
        max-width: none;
        margin: var(--space-2) 0 var(--space-2);
        font-size: clamp(1.65rem, 8vw, 2.2rem);
    }

    .case-index-lede {
        font-size: var(--text-sm);
        line-height: 1.55;
    }

    .case-index-stats,
    .case-index-industries {
        display: none;
    }

    .case-index-body {
        gap: var(--space-4);
    }

    .case-index-hero-inner,
    .case-index-filters,
    .case-index-filter-controls,
    .case-index-grid {
        grid-template-columns: 1fr;
    }

    .case-index-filter-panel {
        display: flex;
        flex-direction: column;
        gap: 0.75rem;
        margin-top: 0;
    }

    .case-index-filter-panel:not(.is-open) > .case-index-filters {
        display: none;
    }

    .case-index-filter-toggle {
        display: flex;
        align-items: center;
        gap: 0.6rem;
        width: 100%;
        padding: 0.85rem 1rem;
        background: var(--color-surface);
        border: 1px solid var(--color-border);
        border-radius: var(--radius-lg);
        box-shadow: var(--shadow-sm);
        color: var(--color-heading);
        font: inherit;
        font-weight: var(--font-semibold);
        cursor: pointer;
    }

    .case-index-filters {
        margin-top: 0;
        padding: 0.85rem;
    }

    .case-index-reset,
    .case-index-apply {
        justify-self: stretch;
        width: 100%;
    }

    .case-index-toolbar {
        flex-direction: row;
        align-items: center;
        gap: 0.6rem;
        margin-bottom: var(--space-3);
    }

    .case-index-count {
        flex: 1;
        min-width: 0;
        font-size: var(--text-sm);
    }

    .case-index-sort {
        flex-direction: row;
        align-items: center;
        flex: 0 1 auto;
        min-width: 0;
    }

    .case-index-sort .case-index-select {
        width: auto;
        min-width: 0;
        max-width: 9.5rem;
        padding: 0.45rem 0.5rem;
    }

    .case-index-select,
    .case-index-dropdown-panel {
        width: 100%;
        left: 0;
        right: 0;
    }
}