.materials-page {
    --materials-ink: var(--ink);
    --materials-muted: var(--ink-soft);
    --materials-rule: color-mix(in srgb, var(--line) 86%, transparent);
    overflow: hidden;
    color: var(--materials-ink);
    background:
        radial-gradient(circle at 8% 18%, color-mix(in srgb, var(--amber-soft) 60%, transparent), transparent 24rem),
        var(--paper);
}

.materials-wrap {
    width: min(1180px, calc(100% - 48px));
    margin-inline: auto;
}

.materials-hero {
    position: relative;
    overflow: hidden;
    padding: 76px 0 64px;
    border-bottom: 1px solid var(--materials-rule);
    background:
        linear-gradient(105deg, color-mix(in srgb, var(--page-warm) 72%, var(--paper)), color-mix(in srgb, var(--teal-soft) 56%, var(--paper)));
}

.materials-hero::before {
    position: absolute;
    top: -190px;
    right: -160px;
    width: 530px;
    height: 530px;
    border: 1px solid color-mix(in srgb, var(--teal) 26%, transparent);
    border-radius: 50%;
    content: "";
}

.materials-hero::after {
    position: absolute;
    right: 11%;
    bottom: -74px;
    width: 148px;
    height: 148px;
    border: 18px solid color-mix(in srgb, var(--amber) 34%, transparent);
    border-radius: 50%;
    content: "";
}

.materials-hero-grid {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: minmax(0, 1.08fr) minmax(390px, 0.78fr);
    align-items: center;
    gap: clamp(48px, 8vw, 104px);
}

.materials-kicker,
.materials-overline {
    margin: 0;
    color: var(--teal-deep);
    font-size: 0.75rem;
    font-weight: 900;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.materials-kicker span {
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.materials-kicker span::before {
    width: 24px;
    height: 2px;
    background: currentColor;
    content: "";
}

.materials-hero-copy h1 {
    max-width: 700px;
    margin: 15px 0 20px;
    font-size: clamp(3.5rem, 7vw, 6.55rem);
    font-weight: 900;
    line-height: 0.88;
    letter-spacing: -0.065em;
}

.materials-lede {
    max-width: 700px;
    margin: 0;
    color: var(--materials-muted);
    font-size: clamp(1.05rem, 1.8vw, 1.24rem);
    line-height: 1.72;
}

.materials-hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 28px;
}

.materials-hero-stats {
    display: flex;
    flex-wrap: wrap;
    gap: 0;
    margin: 40px 0 0;
}

.materials-hero-stats div {
    min-width: 130px;
    padding: 3px 30px 3px 0;
}

.materials-hero-stats div + div {
    padding-left: 30px;
    border-left: 1px solid var(--materials-rule);
}

.materials-hero-stats dt {
    color: var(--materials-ink);
    font-size: 1.55rem;
    font-weight: 900;
    line-height: 1;
}

.materials-hero-stats dd {
    margin: 6px 0 0;
    color: var(--materials-muted);
    font-size: 0.71rem;
    font-weight: 800;
    line-height: 1.3;
    text-transform: uppercase;
}

.materials-sampler {
    position: relative;
    width: 100%;
    max-width: 470px;
    min-height: 485px;
    margin-left: auto;
    padding: 24px;
    color: #f7fbf7;
    border: 1px solid rgba(255, 255, 255, 0.16);
    border-radius: 12px;
    background:
        linear-gradient(145deg, rgba(42, 167, 162, 0.18), transparent 42%),
        #17343a;
    box-shadow: 24px 30px 0 color-mix(in srgb, var(--amber) 34%, transparent), 0 28px 70px rgba(23, 52, 58, 0.22);
    transform: rotate(1deg);
}

.materials-sampler::before {
    position: absolute;
    top: -9px;
    left: 28%;
    width: 110px;
    height: 23px;
    background: rgba(255, 238, 186, 0.62);
    content: "";
    transform: rotate(-4deg);
}

.materials-sampler-top,
.materials-sampler-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    color: rgba(247, 251, 247, 0.65);
    font-size: 0.68rem;
    font-weight: 900;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.materials-sampler-formula {
    display: grid;
    min-height: 205px;
    margin-top: 22px;
    padding: 28px;
    border: 1px solid rgba(255, 255, 255, 0.18);
    background: rgba(255, 255, 255, 0.06);
    place-items: center;
}

.materials-sampler-formula > span {
    justify-self: start;
    color: #9cdbd2;
    font-size: 0.72rem;
    font-weight: 900;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.materials-sampler-formula strong {
    display: flex;
    align-items: center;
    gap: 17px;
    font-family: Georgia, "Times New Roman", serif;
    font-size: clamp(2.55rem, 5vw, 4rem);
    font-style: italic;
    font-weight: 400;
}

.materials-fraction {
    display: inline-grid;
    vertical-align: middle;
    font-style: normal;
    line-height: 1.05;
    text-align: center;
}

.materials-fraction > span {
    display: block;
    padding: 0.05em 0.2em;
}

.materials-fraction > span:first-child {
    border-bottom: 0.06em solid currentColor;
}

.materials-sampler-row {
    display: grid;
    grid-template-columns: 0.82fr 1.18fr;
    gap: 12px;
    margin-top: 12px;
}

.materials-sampler-symbols,
.materials-sampler-note {
    min-height: 118px;
    padding: 18px;
}

.materials-sampler-symbols {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 9px;
    color: #17343a;
    background: #f6b44b;
    font-family: Georgia, "Times New Roman", serif;
    font-size: 1.8rem;
    font-style: italic;
}

.materials-sampler-note {
    position: relative;
    display: flex;
    flex-direction: column;
    justify-content: center;
    color: #17343a;
    background: #f7fbf7;
    transform: rotate(-1.5deg);
}

.materials-sampler-note strong {
    font-size: 1rem;
}

.materials-sampler-note small {
    color: #42656b;
}

.materials-note-pin {
    position: absolute;
    top: 10px;
    right: 12px;
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: #f26d5b;
    box-shadow: 1px 2px 0 rgba(0, 0, 0, 0.2);
}

.materials-sampler-footer {
    justify-content: flex-start;
    margin-top: 18px;
}

.materials-sampler-footer span {
    padding: 4px 7px;
    border: 1px solid rgba(255, 255, 255, 0.17);
}

.materials-context-band {
    position: relative;
    z-index: 3;
    padding: 22px 0;
    border-bottom: 1px solid var(--materials-rule);
    background: color-mix(in srgb, var(--surface) 94%, var(--teal-soft));
}

.materials-context-card {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr) auto;
    align-items: center;
    gap: 18px;
}

.materials-context-mark {
    position: relative;
    width: 56px;
    height: 56px;
}

.materials-context-mark span {
    position: absolute;
    inset: 7px;
    border: 2px solid var(--teal-deep);
    border-radius: 5px;
    background: var(--surface);
}

.materials-context-mark span:nth-child(1) {
    transform: translate(-5px, 5px) rotate(-4deg);
}

.materials-context-mark span:nth-child(2) {
    transform: translate(3px, 2px) rotate(4deg);
}

.materials-context-mark span:nth-child(3) {
    display: grid;
    background: var(--teal-soft);
    transform: translate(0, -4px);
    place-items: center;
}

.materials-context-mark span:nth-child(3)::after {
    color: var(--teal-deep);
    content: "+";
    font-size: 1.4rem;
    font-weight: 900;
}

.materials-context-copy h2 {
    margin: 2px 0 0;
    font-size: 1.12rem;
    line-height: 1.25;
}

.materials-context-copy p:last-child {
    margin: 4px 0 0;
    color: var(--materials-muted);
    font-size: 0.86rem;
}

.materials-context-actions {
    display: flex;
    align-items: center;
    gap: 10px;
}

.materials-review-button {
    min-height: 44px;
    padding: 10px 14px;
    color: var(--materials-ink);
    border: 1px solid var(--materials-rule);
    border-radius: 7px;
    background: var(--surface);
    font-size: 0.82rem;
    font-weight: 900;
    cursor: pointer;
}

.materials-review-button span {
    display: inline-grid;
    min-width: 23px;
    height: 23px;
    margin-left: 6px;
    padding: 0 5px;
    color: var(--white);
    border-radius: 999px;
    background: var(--teal-deep);
    place-items: center;
}

.materials-selection-panel {
    margin-top: 18px;
    padding: 16px 18px;
    border: 1px solid var(--materials-rule);
    border-radius: 8px;
    background: var(--surface);
}

.materials-selection-panel > div {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
}

.materials-selection-panel > div > strong {
    font-size: 0.84rem;
}

.materials-selection-panel button {
    padding: 0;
    color: var(--coral);
    border: 0;
    background: transparent;
    font-size: 0.76rem;
    font-weight: 900;
    cursor: pointer;
}

.materials-selection-panel ul {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin: 12px 0 0;
    padding: 0;
    list-style: none;
}

.materials-selection-panel li:not(.materials-selection-empty) {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 7px 9px 7px 11px;
    border: 1px solid var(--line);
    border-radius: 999px;
    background: var(--surface-soft);
    font-size: 0.76rem;
    font-weight: 800;
}

.materials-selection-panel li button {
    display: grid;
    width: 22px;
    height: 22px;
    color: var(--materials-muted);
    border-radius: 50%;
    background: var(--mist);
    place-items: center;
}

.materials-selection-empty {
    color: var(--materials-muted);
    font-size: 0.82rem;
}

.materials-library {
    padding: 84px 0 96px;
}

.materials-library-head {
    display: grid;
    grid-template-columns: minmax(0, 1.15fr) minmax(300px, 0.65fr);
    align-items: end;
    gap: 64px;
}

.materials-library-head h2,
.materials-next h2 {
    max-width: 720px;
    margin: 10px 0 0;
    font-size: clamp(2.25rem, 4.4vw, 4rem);
    line-height: 0.98;
    letter-spacing: -0.045em;
}

.materials-library-head > p {
    margin: 0;
    color: var(--materials-muted);
    font-size: 0.98rem;
    line-height: 1.72;
}

.materials-controls {
    margin: 40px 0 28px;
    padding: 18px;
    border: 1px solid var(--materials-rule);
    border-radius: 10px;
    background: color-mix(in srgb, var(--surface) 94%, var(--teal-soft));
}

.materials-search {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr) auto;
    align-items: center;
    gap: 10px;
    min-height: 54px;
    padding: 0 14px;
    border: 1px solid var(--line);
    border-radius: 7px;
    background: var(--surface);
}

.materials-search input {
    width: 100%;
    min-width: 0;
    padding: 0;
    color: var(--materials-ink);
    border: 0;
    outline: 0;
    background: transparent;
}

.materials-search kbd {
    padding: 2px 7px;
    color: var(--materials-muted);
    border: 1px solid var(--line);
    border-radius: 4px;
    background: var(--surface-soft);
    font-family: inherit;
    font-size: 0.7rem;
}

.materials-filter-row {
    display: flex;
    flex-wrap: wrap;
    gap: 7px;
    margin-top: 13px;
}

.materials-filter-row button {
    min-height: 35px;
    padding: 7px 11px;
    color: var(--materials-muted);
    border: 1px solid transparent;
    border-radius: 999px;
    background: transparent;
    font-size: 0.74rem;
    font-weight: 850;
    cursor: pointer;
}

.materials-filter-row button:hover {
    color: var(--materials-ink);
    background: var(--mist);
}

.materials-filter-row button[aria-pressed="true"] {
    color: var(--white);
    border-color: var(--teal-deep);
    background: var(--teal-deep);
}

.materials-result-count {
    margin: 12px 0 0;
    color: var(--materials-muted);
    font-size: 0.72rem;
    font-weight: 800;
}

.materials-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    align-items: start;
    gap: 24px;
}

.material-card {
    --material-accent: var(--teal);
    --material-soft: var(--teal-soft);
    position: relative;
    overflow: hidden;
    min-width: 0;
    border: 1px solid var(--materials-rule);
    border-radius: 12px;
    background: var(--surface);
    box-shadow: 0 16px 45px rgba(23, 52, 58, 0.07);
    transition: border-color 160ms ease, box-shadow 160ms ease, transform 160ms ease;
}

.material-card:hover {
    border-color: color-mix(in srgb, var(--material-accent) 52%, var(--line));
    box-shadow: 0 23px 60px rgba(23, 52, 58, 0.11);
    transform: translateY(-2px);
}

.material-card.is-in-context {
    border-color: var(--teal-deep);
    box-shadow: 0 0 0 3px color-mix(in srgb, var(--teal) 18%, transparent), 0 20px 50px rgba(23, 52, 58, 0.1);
}

.material-card-tone-2 {
    --material-accent: var(--amber);
    --material-soft: var(--amber-soft);
}

.material-card-tone-3 {
    --material-accent: var(--coral);
    --material-soft: var(--danger-soft);
}

.material-card-tone-4 {
    --material-accent: var(--violet);
    --material-soft: var(--violet-soft);
}

.material-card-tone-5 {
    --material-accent: #4c91c7;
    --material-soft: color-mix(in srgb, #dceeff 72%, var(--surface));
}

.material-card-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 14px;
    padding: 15px 18px;
    border-bottom: 1px solid var(--materials-rule);
}

.material-card-head > div {
    display: flex;
    align-items: center;
    gap: 9px;
}

.material-number {
    color: var(--material-accent);
    font-size: 0.68rem;
    font-weight: 950;
}

.material-subject,
.material-type {
    font-size: 0.68rem;
    font-weight: 900;
    letter-spacing: 0.06em;
    text-transform: uppercase;
}

.material-subject {
    color: var(--materials-ink);
}

.material-type {
    max-width: 48%;
    padding: 4px 7px;
    color: var(--materials-muted);
    border-radius: 4px;
    background: var(--surface-muted);
    line-height: 1.25;
    text-align: right;
}

.material-preview {
    display: flex;
    min-height: 270px;
    padding: 28px;
    border-bottom: 1px solid var(--materials-rule);
    background:
        linear-gradient(145deg, color-mix(in srgb, var(--material-soft) 80%, var(--surface)), var(--surface));
    flex-direction: column;
    justify-content: center;
}

.material-card-copy {
    padding: 22px 22px 18px;
}

.material-card-copy h3 {
    margin: 0;
    font-size: 1.45rem;
    line-height: 1.15;
    letter-spacing: -0.02em;
}

.material-card-copy p {
    margin: 9px 0 0;
    color: var(--materials-muted);
    font-size: 0.9rem;
    line-height: 1.62;
}

.material-card-actions {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 9px;
    padding: 0 22px 22px;
}

.material-context-button,
.material-copy-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    min-height: 43px;
    padding: 9px 12px;
    border: 1px solid var(--line);
    border-radius: 7px;
    font-size: 0.78rem;
    font-weight: 900;
    cursor: pointer;
}

.material-context-button {
    color: var(--materials-ink);
    background: var(--surface);
}

.material-context-button:hover,
.material-context-button[aria-pressed="true"] {
    color: var(--white);
    border-color: var(--teal-deep);
    background: var(--teal-deep);
}

.material-context-plus {
    display: grid;
    width: 20px;
    height: 20px;
    border: 1px solid currentColor;
    border-radius: 50%;
    font-size: 1rem;
    line-height: 1;
    place-items: center;
}

.material-context-button[aria-pressed="true"] .material-context-plus {
    font-size: 0;
}

.material-context-button[aria-pressed="true"] .material-context-plus::after {
    content: "✓";
    font-size: 0.78rem;
}

.material-copy-button {
    color: var(--materials-muted);
    background: var(--surface-soft);
}

.material-copy-button:hover {
    color: var(--materials-ink);
    background: var(--mist);
}

.material-math {
    text-align: center;
}

.material-formula-large {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 15px;
    color: var(--materials-ink);
    font-family: Georgia, "Times New Roman", serif;
    font-size: clamp(2.3rem, 5vw, 3.8rem);
}

.material-formula-large .materials-fraction {
    font-size: 0.76em;
}

.material-equation-path {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    margin-top: 30px;
    color: var(--materials-muted);
    font-size: 0.8rem;
}

.material-equation-path span,
.material-equation-path strong {
    padding: 6px 9px;
    border: 1px solid var(--line);
    border-radius: 5px;
    background: var(--surface);
}

.material-equation-path strong {
    color: var(--materials-ink);
    border-color: var(--material-accent);
}

.material-data-table table {
    width: 100%;
    overflow: hidden;
    border: 1px solid var(--line);
    border-collapse: separate;
    border-spacing: 0;
    border-radius: 7px;
    background: var(--surface);
    text-align: center;
}

.material-data-table th,
.material-data-table td {
    padding: 11px;
    border-right: 1px solid var(--line);
}

.material-data-table th:last-child,
.material-data-table td:last-child {
    border-right: 0;
}

.material-data-table th {
    color: var(--materials-muted);
    border-bottom: 1px solid var(--line);
    font-size: 0.7rem;
    text-transform: uppercase;
}

.material-data-table td {
    color: var(--materials-ink);
    font-family: Georgia, "Times New Roman", serif;
    font-size: 1.6rem;
}

.material-data-table p {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin: 18px 0 0;
}

.material-data-table p span {
    color: var(--materials-muted);
    font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
}

.material-data-table p strong {
    padding: 8px 14px;
    color: var(--materials-ink);
    border-bottom: 3px solid var(--material-accent);
    font-size: 1.25rem;
}

.material-symbol-board {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr) auto minmax(0, 1fr);
    align-items: center;
    gap: 10px;
}

.material-symbol-board div {
    display: flex;
    min-width: 0;
    min-height: 150px;
    padding: 14px 8px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: var(--surface);
    flex-direction: column;
    justify-content: center;
    text-align: center;
}

.material-symbol-board div strong {
    color: var(--material-accent);
    font-family: Georgia, "Times New Roman", serif;
    font-size: 3rem;
    font-style: italic;
    line-height: 1;
}

.material-symbol-board div span {
    margin-top: 8px;
    font-size: 0.78rem;
    font-weight: 900;
}

.material-symbol-board div small {
    color: var(--materials-muted);
    font-size: 0.62rem;
}

.material-symbol-board > b {
    font-size: 1.5rem;
}

.material-chemistry {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: clamp(13px, 3vw, 28px);
    font-family: Georgia, "Times New Roman", serif;
    font-size: clamp(2rem, 4.5vw, 3.25rem);
}

.material-chemistry div {
    white-space: nowrap;
}

.material-chemistry sub {
    font-size: 0.52em;
}

.material-chemistry .coefficient {
    display: inline-grid;
    width: 1.35em;
    height: 1.35em;
    margin-right: 0.1em;
    color: var(--materials-ink);
    border-radius: 50%;
    background: var(--material-accent);
    font-family: Inter, ui-sans-serif, sans-serif;
    font-size: 0.55em;
    font-weight: 900;
    vertical-align: 0.2em;
    place-items: center;
}

.material-atom-check {
    display: flex;
    justify-content: center;
    gap: 9px;
    margin-top: 30px;
}

.material-atom-check span {
    padding: 5px 9px;
    color: var(--teal-ink);
    border-radius: 999px;
    background: var(--teal-soft);
    font-size: 0.72rem;
    font-weight: 900;
}

.material-cell-svg,
.material-market-svg {
    width: 100%;
    height: auto;
    max-height: 225px;
    color: var(--materials-ink);
}

.material-svg-labels {
    font-family: Inter, ui-sans-serif, sans-serif;
    font-size: 11px;
    font-weight: 800;
}

.material-dialogue {
    display: grid;
    gap: 12px;
}

.material-dialogue p {
    position: relative;
    max-width: 78%;
    margin: 0;
    padding: 14px 16px 14px 48px;
    border: 1px solid var(--line);
    border-radius: 5px 18px 18px 18px;
    background: var(--surface);
    font-size: 0.88rem;
}

.material-dialogue p:nth-child(2) {
    justify-self: end;
    border-radius: 18px 5px 18px 18px;
    background: var(--material-soft);
}

.material-dialogue p span {
    position: absolute;
    top: 15px;
    left: 14px;
    display: grid;
    width: 24px;
    height: 24px;
    color: var(--materials-ink);
    border-radius: 50%;
    background: var(--material-accent);
    font-size: 0.7rem;
    font-weight: 900;
    place-items: center;
}

.material-dialogue p strong {
    color: var(--materials-ink);
}

.material-phrase-strip {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 7px;
    margin-top: 20px;
}

.material-phrase-strip span {
    padding: 4px 8px;
    border: 1px solid var(--line);
    border-radius: 999px;
    background: var(--surface);
    font-size: 0.7rem;
    font-weight: 800;
}

.material-cer {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr) auto minmax(0, 1fr);
    align-items: center;
    gap: 9px;
}

.material-cer div {
    display: flex;
    min-height: 150px;
    padding: 14px 8px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: var(--surface);
    flex-direction: column;
    justify-content: center;
    text-align: center;
}

.material-cer div span {
    display: grid;
    width: 42px;
    height: 42px;
    margin: 0 auto 12px;
    color: var(--materials-ink);
    border-radius: 50%;
    background: var(--material-accent);
    font-size: 1.1rem;
    font-weight: 950;
    place-items: center;
}

.material-cer div strong {
    font-size: 0.78rem;
}

.material-cer div small {
    color: var(--materials-muted);
    font-size: 0.62rem;
}

.material-timeline {
    position: relative;
    display: grid;
    grid-template-columns: repeat(5, minmax(0, 1fr));
    gap: 6px;
}

.material-timeline::before {
    position: absolute;
    top: 31px;
    right: 8%;
    left: 8%;
    height: 2px;
    background: color-mix(in srgb, var(--material-accent) 70%, var(--line));
    content: "";
}

.material-timeline div {
    position: relative;
    min-width: 0;
    text-align: center;
}

.material-timeline div::before {
    display: block;
    width: 12px;
    height: 12px;
    margin: 25px auto 13px;
    border: 3px solid var(--surface);
    border-radius: 50%;
    background: var(--material-accent);
    box-shadow: 0 0 0 1px var(--material-accent);
    content: "";
}

.material-timeline strong {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
    font-size: 0.74rem;
}

.material-timeline span {
    display: block;
    color: var(--materials-muted);
    font-size: 0.66rem;
    font-weight: 800;
    line-height: 1.3;
}

.material-process {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr) auto minmax(0, 1fr) auto minmax(0, 1fr);
    align-items: center;
    gap: 7px;
}

.material-process div {
    display: flex;
    min-width: 0;
    min-height: 116px;
    padding: 10px 5px;
    border: 1px solid var(--line);
    border-radius: 50%;
    background: var(--surface);
    flex-direction: column;
    justify-content: center;
    text-align: center;
}

.material-process div span {
    color: var(--material-accent);
    font-size: 1.8rem;
    line-height: 1;
}

.material-process div strong {
    margin-top: 5px;
    font-size: 0.6rem;
    line-height: 1.2;
}

.material-process > b {
    color: var(--materials-muted);
}

.material-cycle-note {
    margin: 18px 0 0;
    color: var(--materials-muted);
    font-size: 0.68rem;
    font-weight: 850;
    text-align: center;
    text-transform: uppercase;
}

.material-code {
    overflow: auto;
    margin: 0;
    padding: 20px;
    color: #d9efe9;
    border-radius: 8px;
    background: #17343a;
    font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
    font-size: clamp(0.72rem, 1.4vw, 0.86rem);
    line-height: 1.7;
}

.material-code span {
    color: #f6b44b;
}

.material-search-space {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 7px;
    margin-top: 19px;
    color: var(--materials-muted);
    font-size: 0.72rem;
}

.material-search-space span,
.material-search-space strong {
    display: grid;
    width: 32px;
    height: 32px;
    border: 1px solid var(--line);
    border-radius: 4px;
    background: var(--surface);
    place-items: center;
}

.material-search-space strong {
    color: var(--materials-ink);
    border-color: var(--material-accent);
    background: var(--material-soft);
}

.material-palette {
    display: grid;
    gap: 13px;
}

.material-palette div {
    display: flex;
    align-items: center;
    gap: 0;
    min-height: 50px;
    padding: 8px 12px;
    border: 1px solid var(--line);
    border-radius: 7px;
    background: var(--surface);
}

.material-palette div span {
    display: block;
    width: 34px;
    height: 34px;
    margin-right: -5px;
    border: 3px solid var(--surface);
    border-radius: 50%;
    background: var(--swatch);
    box-shadow: 0 0 0 1px color-mix(in srgb, var(--ink) 14%, transparent);
}

.material-palette div strong {
    margin-left: auto;
    padding-left: 14px;
    font-size: 0.72rem;
}

.material-access-note {
    margin: 16px 0 0;
    color: var(--materials-muted);
    font-size: 0.7rem;
    text-align: center;
}

.material-access-note b {
    color: var(--materials-ink);
}

.material-rhythm {
    display: grid;
    grid-template-columns: 1fr 1fr 2fr;
    align-items: end;
    gap: 10px;
}

.material-rhythm div {
    display: grid;
    min-height: 146px;
    padding: 15px;
    border: 1px solid var(--line);
    border-radius: 7px;
    background: var(--surface);
    place-items: center;
}

.material-rhythm strong {
    color: var(--materials-ink);
    font-family: "Segoe UI Symbol", "Noto Music", serif;
    font-size: clamp(2.8rem, 6vw, 4.6rem);
    font-weight: 400;
    line-height: 1;
}

.material-rhythm span {
    color: var(--materials-muted);
    font-size: 0.68rem;
    font-weight: 900;
}

.material-count-line {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    margin-top: 18px;
}

.material-count-line span {
    height: 6px;
    border-right: 2px solid var(--surface);
    background: var(--material-accent);
}

.material-checklist {
    display: grid;
    gap: 8px;
    margin: 0;
    padding: 0;
    list-style: none;
}

.material-checklist li {
    display: flex;
    align-items: center;
    gap: 11px;
    min-height: 39px;
    padding: 6px 12px;
    border: 1px solid var(--line);
    border-radius: 7px;
    background: var(--surface);
}

.material-checklist li span {
    display: grid;
    width: 24px;
    height: 24px;
    color: var(--materials-ink);
    border-radius: 50%;
    background: var(--material-accent);
    font-size: 0.68rem;
    font-weight: 950;
    place-items: center;
}

.material-checklist li strong {
    font-size: 0.76rem;
}

.materials-empty {
    padding: 72px 24px;
    border: 1px dashed var(--line);
    border-radius: 12px;
    background: var(--surface);
    text-align: center;
}

.materials-empty > span {
    color: var(--teal);
    font-size: 3rem;
}

.materials-empty h3 {
    margin: 6px 0;
}

.materials-empty p {
    margin: 0 0 18px;
    color: var(--materials-muted);
}

.materials-next {
    padding: 74px 0;
    color: #f7fbf7;
    background:
        radial-gradient(circle at 88% 20%, rgba(246, 180, 75, 0.2), transparent 19rem),
        #17343a;
}

.materials-next-inner {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: end;
    gap: 48px;
}

.materials-next .materials-kicker {
    color: #9cdbd2;
}

.materials-next h2 {
    color: #f7fbf7;
}

.materials-next p:not(.materials-kicker) {
    max-width: 690px;
    margin: 18px 0 0;
    color: #cce2df;
}

.materials-next-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    justify-content: flex-end;
}

.materials-next .button-primary {
    color: #17343a;
    background: #f6b44b;
}

.materials-next .button-primary:hover {
    color: #17343a;
    background: #ffc766;
}

.materials-next .button-secondary {
    color: #f7fbf7;
    border-color: rgba(255, 255, 255, 0.25);
    background: rgba(255, 255, 255, 0.07);
}

.materials-next .button-secondary:hover {
    color: #ffffff;
    background: rgba(255, 255, 255, 0.13);
}

.materials-page :where(button, a, input):focus-visible {
    outline: 3px solid var(--control-focus-ring);
    outline-offset: 3px;
}

html[data-theme-tone="dark"] .materials-sampler {
    box-shadow: 24px 30px 0 rgba(246, 180, 75, 0.17), 0 28px 70px rgba(0, 0, 0, 0.35);
}

html[data-theme-tone="dark"] .material-code {
    border: 1px solid var(--line);
    background: #071b20;
}

@media (max-width: 980px) {
    .materials-hero {
        padding-top: 58px;
    }

    .materials-hero-grid {
        grid-template-columns: minmax(0, 1fr) minmax(330px, 0.7fr);
        gap: 42px;
    }

    .materials-hero-copy h1 {
        font-size: clamp(3.2rem, 8vw, 5rem);
    }

    .materials-sampler {
        min-height: 430px;
        padding: 19px;
        box-shadow: 15px 20px 0 color-mix(in srgb, var(--amber) 30%, transparent), 0 24px 55px rgba(23, 52, 58, 0.18);
    }

    .materials-sampler-formula {
        min-height: 180px;
    }

    .materials-library-head {
        grid-template-columns: 1fr;
        gap: 18px;
    }

    .material-preview {
        min-height: 250px;
        padding: 22px;
    }

    .material-process div {
        min-height: 96px;
    }
}

@media (max-width: 780px) {
    .materials-wrap {
        width: min(100% - 32px, 680px);
    }

    .materials-hero {
        padding: 48px 0 58px;
    }

    .materials-hero-grid {
        grid-template-columns: 1fr;
    }

    .materials-sampler {
        max-width: 520px;
        margin: 0 auto;
        transform: none;
    }

    .materials-context-card {
        grid-template-columns: auto minmax(0, 1fr);
    }

    .materials-context-actions {
        grid-column: 1 / -1;
    }

    .materials-context-actions .button {
        flex: 1;
    }

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

    .materials-next-inner {
        grid-template-columns: 1fr;
        align-items: start;
        gap: 28px;
    }

    .materials-next-actions {
        justify-content: flex-start;
    }
}

@media (max-width: 520px) {
    .materials-wrap {
        width: min(100% - 24px, 480px);
    }

    .materials-hero-copy h1 {
        font-size: clamp(3rem, 16vw, 4.3rem);
    }

    .materials-hero-stats {
        display: grid;
        grid-template-columns: repeat(3, minmax(0, 1fr));
        width: 100%;
    }

    .materials-hero-stats div {
        min-width: 0;
        padding: 2px 10px 2px 0;
    }

    .materials-hero-stats div + div {
        padding-left: 10px;
    }

    .materials-hero-stats dt {
        font-size: 1.3rem;
    }

    .materials-hero-stats dd {
        font-size: 0.61rem;
    }

    .materials-sampler {
        min-height: 388px;
        padding: 15px;
        box-shadow: 9px 13px 0 color-mix(in srgb, var(--amber) 28%, transparent);
    }

    .materials-sampler-formula {
        min-height: 160px;
        padding: 19px;
    }

    .materials-sampler-formula strong {
        font-size: 2.35rem;
    }

    .materials-sampler-symbols,
    .materials-sampler-note {
        min-height: 100px;
        padding: 13px;
    }

    .materials-sampler-symbols {
        font-size: 1.45rem;
    }

    .materials-context-band {
        padding-block: 18px;
    }

    .materials-context-mark {
        width: 48px;
        height: 48px;
    }

    .materials-context-copy h2 {
        font-size: 1rem;
    }

    .materials-context-actions {
        display: grid;
        grid-template-columns: 1fr 1fr;
        width: 100%;
    }

    .materials-library {
        padding: 64px 0 72px;
    }

    .materials-library-head h2,
    .materials-next h2 {
        font-size: 2.4rem;
    }

    .materials-controls {
        margin-top: 28px;
        padding: 12px;
    }

    .materials-search kbd {
        display: none;
    }

    .materials-filter-row {
        flex-wrap: nowrap;
        overflow-x: auto;
        padding-bottom: 3px;
        scrollbar-width: thin;
    }

    .materials-filter-row button {
        flex: 0 0 auto;
    }

    .material-card-head {
        align-items: flex-start;
        padding: 13px 14px;
    }

    .material-preview {
        min-height: 235px;
        padding: 18px 14px;
    }

    .material-card-copy {
        padding: 19px 17px 15px;
    }

    .material-card-actions {
        padding: 0 17px 18px;
    }

    .material-symbol-board,
    .material-cer {
        gap: 5px;
    }

    .material-symbol-board div,
    .material-cer div {
        min-height: 126px;
        padding-inline: 4px;
    }

    .material-symbol-board div strong {
        font-size: 2.4rem;
    }

    .material-symbol-board div span,
    .material-cer div strong {
        font-size: 0.64rem;
    }

    .material-chemistry {
        gap: 8px;
        font-size: 1.85rem;
    }

    .material-timeline {
        gap: 2px;
    }

    .material-process {
        grid-template-columns: repeat(4, minmax(0, 1fr));
    }

    .material-process > b {
        display: none;
    }

    .material-process div {
        min-height: 82px;
        border-radius: 8px;
    }

    .material-process div strong {
        font-size: 0.52rem;
    }

    .material-rhythm div {
        min-height: 124px;
        padding: 8px;
    }

    .material-rhythm strong {
        font-size: 2.55rem;
    }

    .materials-next-actions {
        display: grid;
        grid-template-columns: 1fr;
        width: 100%;
    }
}

@media (prefers-reduced-motion: reduce) {
    .material-card {
        transition: none;
    }
}

@media print {
    .materials-hero-actions,
    .materials-context-band,
    .materials-controls,
    .material-card-actions,
    .materials-next,
    .site-header,
    .site-footer {
        display: none !important;
    }

    .materials-hero {
        padding: 20px 0;
        background: none;
    }

    .materials-hero-grid,
    .materials-library-head,
    .materials-grid {
        display: block;
    }

    .materials-sampler {
        display: none;
    }

    .materials-library {
        padding: 24px 0;
    }

    .material-card {
        margin-bottom: 16px;
        break-inside: avoid;
        box-shadow: none;
    }
}