:root {
    --color-black: #111111;
    --color-white: #ffffff;
    --color-gray: #f0f0f0;
    --color-border: #d7d7d7;
    --color-muted: #666666;
    --color-discovery: #f5a0b8;
    --color-cocreation: #f7e96b;
    --color-exchange: #a8d8b9;
    --color-fermentation: #a2c3e7;
}

* {
    box-sizing: border-box;
}

html,
body {
    margin: 0;
    font-family: "Noto Sans JP", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    color: var(--color-black);
    background: var(--color-white);
    font-size: 16px;
    line-height: 1.75;
    font-feature-settings: "palt";
}

body {
    min-width: 320px;
}

a {
    color: inherit;
}

button,
input {
    font: inherit;
}

.archive-header {
    min-height: 58vh;
    display: grid;
    align-items: end;
    padding: 1.5rem clamp(1rem, 4vw, 4rem) 4rem;
    background:
        linear-gradient(90deg, var(--color-discovery) 0 25%, var(--color-cocreation) 25% 50%, var(--color-exchange) 50% 75%, var(--color-fermentation) 75% 100%);
}

.archive-header__inner {
    max-width: 980px;
}

.back-link {
    position: absolute;
    top: 1.5rem;
    left: clamp(1rem, 4vw, 4rem);
    display: inline-flex;
    align-items: center;
    min-height: 44px;
    padding: 0 1rem;
    background: var(--color-white);
    border: 2px solid var(--color-black);
    text-decoration: none;
    font-weight: 700;
}

.back-link::before {
    content: "<";
    margin-right: 0.5rem;
}

.archive-kicker {
    margin: 0 0 0.75rem;
    font-weight: 900;
    letter-spacing: 0;
}

h1 {
    max-width: 760px;
    margin: 0;
    font-size: clamp(2.4rem, 7vw, 5.8rem);
    line-height: 1.05;
    letter-spacing: 0;
}

.archive-lead {
    max-width: 760px;
    margin: 1.5rem 0 0;
    font-size: 1.05rem;
    font-weight: 700;
}

main {
    width: min(1120px, calc(100% - 2rem));
    margin: 0 auto;
}

.archive-summary {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(280px, 420px);
    gap: 2rem;
    padding: 4rem 0 2rem;
    border-bottom: 2px solid var(--color-black);
}

.archive-summary h2,
.archive-list-section h2 {
    margin: 0 0 1rem;
    font-size: 1.5rem;
}

.archive-summary p {
    margin: 0;
}

.policy-list {
    display: grid;
    gap: 1rem;
    margin: 0;
}

.policy-list div {
    border: 2px solid var(--color-border);
    padding: 1rem;
    background: var(--color-gray);
}

.policy-list dt {
    font-weight: 900;
}

.policy-list dd {
    margin: 0.25rem 0 0;
    color: var(--color-muted);
}

.archive-controls {
    display: flex;
    align-items: end;
    justify-content: space-between;
    gap: 1rem;
    padding: 2rem 0;
}

.search-field {
    display: grid;
    gap: 0.4rem;
    width: min(100%, 420px);
    font-weight: 900;
}

.search-field input {
    min-height: 48px;
    border: 2px solid var(--color-black);
    padding: 0 1rem;
    background: var(--color-white);
}

.view-filter {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.filter-button {
    min-height: 44px;
    border: 2px solid var(--color-black);
    padding: 0 1rem;
    background: var(--color-white);
    cursor: pointer;
    font-weight: 900;
}

.filter-button.is-active {
    background: var(--color-black);
    color: var(--color-white);
}

.archive-list-section {
    padding: 1rem 0 5rem;
}

.archive-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1.5rem;
}

.archive-card {
    display: grid;
    grid-template-rows: auto 1fr;
    min-height: 100%;
    border: 2px solid var(--color-black);
    background: var(--color-white);
}

.archive-card__media-link {
    display: block;
    min-height: 180px;
    background: var(--color-gray);
    text-decoration: none;
}

.archive-card__media {
    position: relative;
    display: grid;
    place-items: center;
    aspect-ratio: 16 / 9;
    min-height: 180px;
    overflow: hidden;
    background:
        linear-gradient(135deg, rgba(245, 160, 184, 0.75), rgba(247, 233, 107, 0.75)),
        var(--color-gray);
    font-weight: 900;
}

.archive-card__media img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.archive-card__media-placeholder {
    padding: 1rem;
    text-align: center;
}

.archive-card__body {
    display: grid;
    gap: 1rem;
    padding: 1.25rem;
}

.archive-card__meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
}

.archive-card__id {
    font-size: 0.9rem;
    font-weight: 900;
}

.archive-card__status {
    border: 2px solid var(--color-black);
    padding: 0.15rem 0.55rem;
    font-size: 0.8rem;
    font-weight: 900;
    background: var(--color-cocreation);
}

.archive-card__title {
    margin: 0;
    font-size: 1.55rem;
    line-height: 1.25;
}

.archive-card__facts {
    display: grid;
    gap: 0.4rem;
    margin: 0;
}

.archive-card__facts div {
    display: grid;
    grid-template-columns: 4.5rem minmax(0, 1fr);
    gap: 0.75rem;
}

.archive-card__facts dt {
    color: var(--color-muted);
    font-size: 0.85rem;
    font-weight: 900;
}

.archive-card__facts dd {
    margin: 0;
}

.archive-card__summary {
    margin: 0;
    color: var(--color-muted);
}

.archive-card__links {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    align-self: end;
}

.archive-card__links a {
    display: inline-flex;
    align-items: center;
    min-height: 40px;
    padding: 0 0.8rem;
    border: 2px solid var(--color-black);
    text-decoration: none;
    font-weight: 900;
    background: var(--color-white);
}

.archive-card__links a::after {
    content: ">";
    margin-left: 0.5rem;
}

.archive-empty {
    grid-column: 1 / -1;
    padding: 2rem;
    border: 2px solid var(--color-border);
    background: var(--color-gray);
}

.archive-footer {
    padding: 2rem 1rem;
    text-align: center;
    background: var(--color-black);
    color: var(--color-white);
}

.archive-footer p {
    margin: 0;
}

@media screen and (max-width: 840px) {
    .archive-summary,
    .archive-grid {
        grid-template-columns: 1fr;
    }

    .archive-controls {
        align-items: stretch;
        flex-direction: column;
    }

    .search-field {
        width: 100%;
    }
}

@media screen and (max-width: 520px) {
    .archive-header {
        min-height: 64vh;
        padding-bottom: 2.5rem;
    }

    .archive-lead {
        font-size: 0.95rem;
    }

    .archive-card__facts div {
        grid-template-columns: 1fr;
        gap: 0;
    }
}