:root {
    --color-ink: #183153;
    --color-ink-deep: #10213a;
    --color-ink-soft: #405776;
    --color-paper: #ffffff;
    --color-paper-light: #fbf8f1;
    --color-parchment: #e6dcc7;
    --color-rubric: #a44736;
    --color-rubric-dark: #813326;
    --color-gold: #c59a54;
    --color-sage: #8a9a87;
    --color-charcoal: #282c29;
    --color-line: rgba(24, 49, 83, 0.18);
    --font-display: "Iowan Old Style", "Palatino Linotype", "Book Antiqua", Palatino, Georgia, serif;
    --font-body: "Avenir Next", Avenir, "Segoe UI", Helvetica, Arial, sans-serif;
    --font-smallcaps: "Avenir Next Condensed", "Arial Narrow", var(--font-body);
    --space-1: 0.375rem;
    --space-2: 0.75rem;
    --space-3: 1.125rem;
    --space-4: 1.5rem;
    --space-5: 2rem;
    --space-6: 3rem;
    --space-7: 4.5rem;
    --space-8: 7rem;
    --radius-small: 0.25rem;
    --radius-medium: 0.75rem;
    --radius-large: 1.5rem;
    --shadow-paper: 0 1rem 3rem rgba(16, 33, 58, 0.13);
    --shadow-book: 1.4rem 1.7rem 0 rgba(16, 33, 58, 0.11), 0 2.5rem 5rem rgba(16, 33, 58, 0.2);
    --container: 76rem;
    --transition: 180ms ease;
}

*,
*::before,
*::after {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    color: var(--color-ink-deep);
    background: var(--color-paper);
    font-family: var(--font-body);
    font-size: 1rem;
    line-height: 1.65;
    text-rendering: optimizeLegibility;
}

body::before {
    position: fixed;
    z-index: 100;
    inset: 0;
    pointer-events: none;
    content: "";
    opacity: 0.22;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 160 160' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.72' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.11'/%3E%3C/svg%3E");
    mix-blend-mode: multiply;
}

img,
svg {
    display: block;
    max-width: 100%;
}

a {
    color: inherit;
}

button,
a {
    -webkit-tap-highlight-color: transparent;
}

:focus-visible {
    outline: 3px solid var(--color-gold);
    outline-offset: 4px;
}

::selection {
    color: var(--color-paper-light);
    background: var(--color-rubric);
}

.skip-link {
    position: fixed;
    z-index: 1000;
    top: 0.75rem;
    left: 0.75rem;
    padding: 0.65rem 1rem;
    color: white;
    background: var(--color-ink-deep);
    transform: translateY(-150%);
}

.skip-link:focus {
    transform: translateY(0);
}

.container {
    width: min(calc(100% - 2.5rem), var(--container));
    margin-inline: auto;
}

.eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    margin: 0 0 var(--space-3);
    color: var(--color-rubric);
    font-family: var(--font-smallcaps);
    font-size: 0.76rem;
    font-weight: 700;
    line-height: 1.2;
    letter-spacing: 0.18em;
    text-transform: uppercase;
}

.eyebrow::before {
    width: 1.8rem;
    height: 1px;
    content: "";
    background: currentColor;
}

.display-title,
.section-title,
.card-title,
.quote {
    margin-top: 0;
    font-family: var(--font-display);
    font-weight: 500;
    letter-spacing: -0.025em;
}

.display-title {
    max-width: 12ch;
    margin-bottom: var(--space-4);
    font-size: clamp(3.5rem, 7.5vw, 7.5rem);
    line-height: 0.91;
}

.display-title em {
    color: var(--color-rubric);
    font-weight: 400;
}

.section-title {
    max-width: 17ch;
    margin-bottom: var(--space-4);
    font-size: clamp(2.4rem, 4.5vw, 4.75rem);
    line-height: 1;
}

.section-lead {
    max-width: 42rem;
    margin: 0;
    color: var(--color-ink-soft);
    font-size: clamp(1.05rem, 1.5vw, 1.25rem);
}

.button {
    display: inline-flex;
    min-height: 3.25rem;
    align-items: center;
    justify-content: center;
    gap: 0.7rem;
    padding: 0.75rem 1.35rem;
    border: 1px solid transparent;
    border-radius: 999px;
    font-size: 0.84rem;
    font-weight: 700;
    letter-spacing: 0.04em;
    text-decoration: none;
    transition: color var(--transition), background var(--transition), border-color var(--transition), transform var(--transition);
}

.button:hover {
    transform: translateY(-2px);
}

.button-primary {
    color: var(--color-paper-light);
    background: var(--color-ink);
}

.button-primary:hover {
    background: var(--color-rubric-dark);
}

.button-secondary {
    border-color: var(--color-line);
    background: rgba(255, 255, 255, 0.22);
}

.button-secondary:hover {
    border-color: var(--color-ink);
    background: rgba(255, 255, 255, 0.5);
}

.button-arrow {
    font-size: 1.1rem;
    transition: transform var(--transition);
}

.button:hover .button-arrow {
    transform: translateX(0.2rem);
}

.site-header {
    position: relative;
    z-index: 20;
    border-bottom: 1px solid var(--color-line);
}

.site-nav {
    display: flex;
    min-height: 6rem;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-4);
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 0.85rem;
    text-decoration: none;
}

.brand-mark {
    width: 2.65rem;
    height: 2.65rem;
}

.brand-name {
    display: block;
    font-family: var(--font-display);
    font-size: 1.6rem;
    line-height: 1;
    letter-spacing: 0.01em;
}

.brand-descriptor {
    display: block;
    margin-top: 0.23rem;
    color: var(--color-ink-soft);
    font-family: var(--font-smallcaps);
    font-size: 0.59rem;
    font-weight: 700;
    letter-spacing: 0.17em;
    text-transform: uppercase;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: clamp(1rem, 2.2vw, 2rem);
}

.nav-link {
    position: relative;
    font-size: 0.8rem;
    font-weight: 650;
    letter-spacing: 0.05em;
    text-decoration: none;
}

.nav-link::after {
    position: absolute;
    right: 0;
    bottom: -0.4rem;
    left: 0;
    height: 1px;
    content: "";
    background: var(--color-rubric);
    transform: scaleX(0);
    transform-origin: right;
    transition: transform var(--transition);
}

.nav-link:hover::after {
    transform: scaleX(1);
    transform-origin: left;
}

.hero {
    position: relative;
    overflow: hidden;
    padding: clamp(4rem, 8vw, 8rem) 0 var(--space-8);
}

.hero::after {
    position: absolute;
    z-index: -1;
    top: -18rem;
    right: -20rem;
    width: 45rem;
    height: 45rem;
    border: 1px solid rgba(164, 71, 54, 0.19);
    border-radius: 50%;
    content: "";
    box-shadow: 0 0 0 5rem rgba(197, 154, 84, 0.04), 0 0 0 10rem rgba(24, 49, 83, 0.025);
}

.hero-grid {
    display: grid;
    align-items: center;
    gap: clamp(4rem, 8vw, 8rem);
    grid-template-columns: minmax(0, 1.1fr) minmax(20rem, 0.7fr);
}

.hero-copy {
    position: relative;
}

.hero-intro {
    max-width: 37rem;
    margin: 0 0 var(--space-5);
    color: var(--color-ink-soft);
    font-size: clamp(1.05rem, 1.6vw, 1.3rem);
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.hero-note {
    display: grid;
    max-width: 32rem;
    margin-top: var(--space-6);
    padding-top: var(--space-3);
    border-top: 1px solid var(--color-line);
    grid-template-columns: auto 1fr;
    gap: 0.8rem;
    color: var(--color-ink-soft);
    font-size: 0.82rem;
}

.hero-note-number {
    color: var(--color-rubric);
    font-family: var(--font-display);
    font-size: 1.3rem;
    line-height: 1;
}

.folio-stage {
    position: relative;
    min-height: 37rem;
    perspective: 1000px;
}

.folio-halo {
    position: absolute;
    top: 1rem;
    right: -1rem;
    width: 23rem;
    height: 23rem;
    border: 1px solid rgba(197, 154, 84, 0.55);
    border-radius: 50%;
}

.folio-halo::before,
.folio-halo::after {
    position: absolute;
    inset: 1rem;
    border: 1px solid rgba(197, 154, 84, 0.2);
    border-radius: inherit;
    content: "";
}

.folio-halo::after {
    inset: 50%;
    width: 1px;
    height: 12rem;
    border: 0;
    border-left: 1px solid rgba(197, 154, 84, 0.35);
    border-radius: 0;
    transform: translateY(-50%);
}

.folio-book {
    position: absolute;
    z-index: 2;
    top: 3.2rem;
    left: 50%;
    width: min(19rem, 78vw);
    min-height: 28.5rem;
    padding: 2.2rem 2rem;
    color: var(--color-paper-light);
    background: var(--color-rubric-dark);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 0.2rem 0.8rem 0.8rem 0.2rem;
    box-shadow: 0.55rem 0.6rem 0 #d7ccb5, 1.15rem 1.35rem 0 rgba(16, 33, 58, 0.1), 0 2.5rem 5rem rgba(16, 33, 58, 0.2);
    transform: translateX(-50%) rotateY(-7deg) rotateZ(2.5deg);
}

.folio-book::before {
    position: absolute;
    top: 0.7rem;
    right: -0.38rem;
    bottom: 0.7rem;
    width: 0.32rem;
    border-radius: 0 0.35rem 0.35rem 0;
    content: "";
    background: repeating-linear-gradient(to bottom, #eee7d8 0, #eee7d8 2px, #cfc3aa 3px);
}

.folio-book::after {
    position: absolute;
    top: 0;
    bottom: 0;
    left: 0.8rem;
    width: 1px;
    content: "";
    background: rgba(255, 255, 255, 0.22);
    box-shadow: 0.3rem 0 0 rgba(0, 0, 0, 0.09);
}

.folio-kicker,
.folio-volume {
    font-family: var(--font-smallcaps);
    font-size: 0.63rem;
    font-weight: 700;
    letter-spacing: 0.2em;
    text-transform: uppercase;
}

.folio-kicker {
    display: flex;
    align-items: center;
    justify-content: space-between;
    color: rgba(255, 255, 255, 0.72);
}

.folio-seal {
    width: 4.7rem;
    margin: 4rem auto 2.6rem;
    padding: 0.75rem;
    border: 1px solid rgba(245, 240, 229, 0.45);
    border-radius: 50%;
}

.folio-seal img {
    filter: brightness(0) invert(1);
    opacity: 0.92;
}

.folio-title {
    margin: 0;
    font-family: var(--font-display);
    font-size: 2.65rem;
    font-weight: 400;
    line-height: 0.98;
    text-align: center;
}

.folio-subtitle {
    max-width: 13rem;
    margin: 1rem auto 0;
    color: rgba(255, 255, 255, 0.72);
    font-family: var(--font-display);
    font-size: 0.98rem;
    font-style: italic;
    line-height: 1.35;
    text-align: center;
}

.folio-volume {
    position: absolute;
    right: 2rem;
    bottom: 1.8rem;
    left: 2rem;
    display: flex;
    justify-content: space-between;
    padding-top: 0.8rem;
    border-top: 1px solid rgba(255, 255, 255, 0.26);
    color: rgba(255, 255, 255, 0.72);
}

.marginalia {
    position: absolute;
    z-index: 3;
    right: -1.2rem;
    bottom: 0.5rem;
    width: 12rem;
    padding: 1rem 1.1rem;
    color: var(--color-ink);
    background: #efe4c9;
    border: 1px solid rgba(24, 49, 83, 0.15);
    box-shadow: var(--shadow-paper);
    font-family: var(--font-display);
    font-size: 0.91rem;
    font-style: italic;
    line-height: 1.35;
    transform: rotate(-3deg);
}

.marginalia::before {
    display: block;
    margin-bottom: 0.45rem;
    color: var(--color-rubric);
    content: "nota bene";
    font-family: var(--font-smallcaps);
    font-size: 0.58rem;
    font-style: normal;
    font-weight: 800;
    letter-spacing: 0.16em;
    text-transform: uppercase;
}

.principles-strip {
    border-block: 1px solid var(--color-line);
    background: rgba(255, 255, 255, 0.18);
}

.principles-list {
    display: grid;
    margin: 0;
    padding: 1.25rem 0;
    list-style: none;
    grid-template-columns: repeat(3, 1fr);
}

.principles-list li {
    display: flex;
    align-items: baseline;
    justify-content: center;
    gap: 0.8rem;
    padding: 0.2rem 1rem;
    border-right: 1px solid var(--color-line);
    color: var(--color-ink-soft);
    font-size: 0.74rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
}

.principles-list li:last-child {
    border-right: 0;
}

.principles-list span {
    color: var(--color-rubric);
    font-family: var(--font-display);
    font-size: 1.15rem;
    font-weight: 400;
}

.section {
    padding: var(--space-8) 0;
}

.section-heading {
    display: grid;
    align-items: end;
    margin-bottom: var(--space-7);
    grid-template-columns: minmax(0, 1fr) minmax(18rem, 0.62fr);
    gap: var(--space-6);
}

.manifesto {
    position: relative;
    background: var(--color-ink-deep);
    color: var(--color-paper-light);
}

.manifesto::before {
    position: absolute;
    top: 0;
    left: clamp(1.25rem, 7vw, 8rem);
    width: 1px;
    height: 100%;
    content: "";
    background: rgba(245, 240, 229, 0.12);
}

.manifesto-grid {
    display: grid;
    align-items: start;
    grid-template-columns: 0.65fr 1.35fr;
    gap: var(--space-7);
}

.manifesto .eyebrow {
    color: #d59d86;
}

.manifesto-title {
    margin: 0;
    font-family: var(--font-display);
    font-size: clamp(2.8rem, 5vw, 5.8rem);
    font-weight: 400;
    line-height: 0.98;
    letter-spacing: -0.025em;
}

.manifesto-title em {
    color: var(--color-gold);
}

.manifesto-copy {
    max-width: 38rem;
    padding-top: 0.45rem;
}

.manifesto-copy p {
    margin: 0 0 1.25rem;
    color: rgba(251, 248, 241, 0.72);
    font-size: 1.08rem;
}

.manifesto-copy p:first-child::first-letter {
    float: left;
    margin: 0.1rem 0.55rem 0 0;
    color: var(--color-gold);
    font-family: var(--font-display);
    font-size: 4.2rem;
    line-height: 0.75;
}

.catalog-grid {
    display: grid;
    border-top: 1px solid var(--color-line);
    border-left: 1px solid var(--color-line);
    grid-template-columns: repeat(2, 1fr);
}

.catalog-card {
    position: relative;
    min-height: 22rem;
    padding: clamp(1.6rem, 4vw, 3rem);
    overflow: hidden;
    border-right: 1px solid var(--color-line);
    border-bottom: 1px solid var(--color-line);
    transition: background var(--transition);
}

.catalog-card:hover {
    background: rgba(255, 255, 255, 0.28);
}

.catalog-number {
    display: block;
    margin-bottom: var(--space-6);
    color: var(--color-rubric);
    font-family: var(--font-display);
    font-size: 0.94rem;
}

.catalog-card .card-title {
    max-width: 13ch;
    margin-bottom: 0.8rem;
    font-size: clamp(2rem, 3vw, 3.2rem);
    line-height: 1;
}

.catalog-card p {
    max-width: 29rem;
    margin: 0;
    color: var(--color-ink-soft);
}

.catalog-glyph {
    position: absolute;
    right: 1.5rem;
    bottom: -1.5rem;
    color: rgba(24, 49, 83, 0.055);
    font-family: var(--font-display);
    font-size: 9rem;
    line-height: 1;
}

.trivium-section {
    background: #ebe3d4;
}

.trivium-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
}

.trivium-card {
    position: relative;
    padding: 2.4rem;
    border-top: 3px solid var(--color-ink);
    border-right: 1px solid rgba(24, 49, 83, 0.16);
}

.trivium-card:last-child {
    border-right: 0;
}

.trivium-card:nth-child(2) {
    border-top-color: var(--color-rubric);
}

.trivium-card:nth-child(3) {
    border-top-color: var(--color-gold);
}

.trivium-stage {
    margin: 0 0 1rem;
    font-family: var(--font-display);
    font-size: 2.2rem;
    font-weight: 500;
}

.trivium-age {
    display: block;
    margin-bottom: 2.8rem;
    color: var(--color-rubric);
    font-family: var(--font-smallcaps);
    font-size: 0.68rem;
    font-weight: 800;
    letter-spacing: 0.14em;
    text-transform: uppercase;
}

.trivium-card p {
    margin: 0;
    color: var(--color-ink-soft);
}

.trivium-word {
    display: block;
    margin-top: 1.5rem;
    padding-top: 1rem;
    border-top: 1px solid rgba(24, 49, 83, 0.16);
    font-family: var(--font-display);
    font-style: italic;
}

.formats-grid {
    display: grid;
    align-items: stretch;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.format-card {
    position: relative;
    min-height: 28rem;
    padding: clamp(2rem, 5vw, 4rem);
    overflow: hidden;
    border-radius: var(--radius-large);
}

.format-card-digital {
    color: var(--color-paper-light);
    background: var(--color-ink);
}

.format-card-print {
    color: var(--color-ink-deep);
    background: #dfd1b7;
}

.format-icon {
    display: grid;
    width: 4rem;
    height: 4rem;
    margin-bottom: var(--space-7);
    border: 1px solid currentColor;
    border-radius: 50%;
    place-items: center;
    font-family: var(--font-display);
    font-size: 1.4rem;
}

.format-card .card-title {
    max-width: 10ch;
    margin-bottom: 1rem;
    font-size: clamp(2.3rem, 4vw, 4rem);
    line-height: 0.98;
}

.format-card p {
    max-width: 28rem;
    margin: 0;
    opacity: 0.72;
}

.format-card::after {
    position: absolute;
    right: -4rem;
    bottom: -6rem;
    width: 17rem;
    height: 17rem;
    border: 1px solid currentColor;
    border-radius: 50%;
    content: "";
    opacity: 0.12;
    box-shadow: 0 0 0 2.5rem currentColor, 0 0 0 5rem currentColor;
}

.closing {
    padding: var(--space-8) 0;
    text-align: center;
}

.closing-mark {
    width: 4.5rem;
    margin: 0 auto var(--space-5);
}

.quote {
    max-width: 21ch;
    margin-right: auto;
    margin-bottom: var(--space-5);
    margin-left: auto;
    font-size: clamp(2.8rem, 6vw, 6.5rem);
    line-height: 0.95;
}

.quote em {
    color: var(--color-rubric);
}

.closing-copy {
    max-width: 38rem;
    margin: 0 auto var(--space-5);
    color: var(--color-ink-soft);
    font-size: 1.1rem;
}

.site-footer {
    padding: var(--space-6) 0 2rem;
    color: rgba(251, 248, 241, 0.72);
    background: var(--color-ink-deep);
}

.footer-grid {
    display: grid;
    align-items: end;
    grid-template-columns: 1fr auto;
    gap: var(--space-5);
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.footer-brand .brand-mark {
    padding: 0.35rem;
    border-radius: 50%;
    background: var(--color-paper);
}

.footer-brand .brand-name {
    color: var(--color-paper-light);
}

.footer-brand .brand-descriptor {
    color: rgba(251, 248, 241, 0.5);
}

.footer-meta {
    font-size: 0.74rem;
    line-height: 1.5;
    text-align: right;
}

.footer-meta a {
    color: var(--color-paper-light);
    text-underline-offset: 0.25rem;
}

@media (max-width: 900px) {
    .nav-link {
        display: none;
    }

    .hero-grid,
    .section-heading,
    .manifesto-grid {
        grid-template-columns: 1fr;
    }

    .hero-grid {
        gap: var(--space-5);
    }

    .hero-copy {
        z-index: 2;
    }

    .folio-stage {
        width: min(100%, 32rem);
        margin-inline: auto;
    }

    .section-heading {
        gap: 1rem;
    }

    .manifesto-grid {
        gap: var(--space-5);
    }

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

    .trivium-card {
        border-right: 0;
    }
}

@media (max-width: 680px) {
    :root {
        --space-8: 5rem;
    }

    .container {
        width: min(calc(100% - 1.5rem), var(--container));
    }

    .site-nav {
        min-height: 5rem;
    }

    .brand-descriptor {
        display: none;
    }

    .nav-links .button {
        min-height: 2.65rem;
        padding: 0.55rem 0.85rem;
        font-size: 0.72rem;
    }

    .hero {
        padding-top: 3.5rem;
    }

    .display-title {
        font-size: clamp(3.2rem, 16vw, 5rem);
    }

    .hero-actions .button {
        width: 100%;
    }

    .folio-stage {
        min-height: 34rem;
    }

    .folio-halo {
        right: -4rem;
    }

    .marginalia {
        right: 0;
    }

    .principles-list {
        grid-template-columns: 1fr;
    }

    .principles-list li {
        justify-content: flex-start;
        border-right: 0;
        border-bottom: 1px solid var(--color-line);
    }

    .principles-list li:last-child {
        border-bottom: 0;
    }

    .catalog-grid,
    .formats-grid {
        grid-template-columns: 1fr;
    }

    .catalog-card {
        min-height: 19rem;
    }

    .format-card {
        min-height: 24rem;
    }

    .footer-grid {
        align-items: start;
        grid-template-columns: 1fr;
    }

    .footer-meta {
        text-align: left;
    }
}

@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }

    *,
    *::before,
    *::after {
        scroll-behavior: auto !important;
        transition-duration: 0.01ms !important;
    }
}

@media print {
    body::before,
    .site-header,
    .hero-actions,
    .site-footer {
        display: none;
    }

    body {
        color: #000;
        background: #fff;
    }

    .hero,
    .section,
    .closing {
        padding: 2rem 0;
    }
}