/* =========================================================================
   napkin homepage — editorial blueprint, Pacific Northwest patina
   System fonts only. Single stylesheet. No external resources.
   ========================================================================= */

/* ---------- Tokens ---------- */

:root {
    /* Light mode: aged tracing paper + deep ink + moss */
    --paper:           oklch(96.5% 0.014 80);
    --paper-deep:      oklch(93.5% 0.020 80);
    --paper-edge:      oklch(89.5% 0.024 80);
    --ink:             oklch(20% 0.025 240);
    --ink-2:           oklch(34% 0.020 240);
    --ink-3:           oklch(55% 0.012 240);
    --rule:            oklch(78% 0.014 90);
    --rule-2:          oklch(85% 0.012 90);
    --moss:            oklch(46% 0.13 145);
    --moss-2:          oklch(38% 0.13 145);
    --moss-soft:       oklch(94% 0.04 145);
    --amber:           oklch(64% 0.16 60);
    --amber-soft:      oklch(94% 0.06 70);
    --tag-bg:          oklch(88% 0.04 90);
    --shadow:          0 1px 0 0 var(--rule-2),
                       0 8px 24px -16px oklch(20% 0.04 240 / 0.20);

    --code-bg:         oklch(96.5% 0.020 90);
    --code-bg-2:       oklch(93% 0.020 90);
    --code-line:       oklch(72% 0.014 90);
    --code-key:        oklch(40% 0.20 320);
    --code-typ:        oklch(50% 0.16 230);
    --code-fn:         oklch(48% 0.14 270);
    --code-str:        oklch(50% 0.16 30);
    --code-cmt:        oklch(55% 0.04 145);

    --step--1:  clamp(0.78rem, 0.74rem + 0.20vw, 0.86rem);
    --step-0:   clamp(0.98rem, 0.94rem + 0.25vw, 1.10rem);
    --step-1:   clamp(1.12rem, 1.05rem + 0.45vw, 1.30rem);
    --step-2:   clamp(1.40rem, 1.25rem + 0.90vw, 1.85rem);
    --step-3:   clamp(2.00rem, 1.60rem + 2.00vw, 3.15rem);
    --step-4:   clamp(2.80rem, 2.00rem + 4.20vw, 5.60rem);

    --s-1:   0.25rem;
    --s-2:   0.5rem;
    --s-3:   0.75rem;
    --s-4:   1rem;
    --s-5:   1.5rem;
    --s-6:   2rem;
    --s-7:   3rem;
    --s-8:   4.5rem;
    --s-9:   6.5rem;
    --s-10:  9rem;

    --gutter:        clamp(1.25rem, 4vw, 4.5rem);
    --col-max:       1280px;

    --font-serif:    ui-serif, "New York", "Iowan Old Style", "Hoefler Text", Charter, Georgia, serif;
    --font-sans:     system-ui, -apple-system, "SF Pro Text", "Helvetica Neue", Helvetica, Arial, sans-serif;
    --font-mono:     ui-monospace, "SF Mono", "JetBrains Mono", Menlo, "Cascadia Code", Consolas, monospace;

    --easing:        cubic-bezier(0.32, 0.72, 0.20, 1);
}

@media (prefers-color-scheme: dark) {
    :root {
        --paper:        oklch(13% 0.020 145);
        --paper-deep:   oklch(17% 0.022 145);
        --paper-edge:   oklch(20% 0.024 145);
        --ink:          oklch(96% 0.02 80);
        --ink-2:        oklch(82% 0.02 80);
        --ink-3:        oklch(64% 0.018 80);
        --rule:         oklch(28% 0.020 145);
        --rule-2:       oklch(22% 0.020 145);
        --moss:         oklch(75% 0.14 145);
        --moss-2:       oklch(85% 0.14 145);
        --moss-soft:    oklch(22% 0.06 145);
        --amber:        oklch(78% 0.16 70);
        --amber-soft:   oklch(26% 0.08 70);
        --tag-bg:       oklch(22% 0.024 145);

        --code-bg:      oklch(17% 0.024 145);
        --code-bg-2:    oklch(14% 0.022 145);
        --code-line:    oklch(45% 0.020 145);
        --code-key:     oklch(78% 0.22 320);
        --code-typ:     oklch(78% 0.16 220);
        --code-fn:      oklch(80% 0.14 270);
        --code-str:     oklch(75% 0.18 30);
        --code-cmt:     oklch(60% 0.06 145);

        --shadow:       0 1px 0 0 var(--rule-2),
                        0 18px 48px -28px oklch(0% 0 0 / 0.55);
    }
}

/* ---------- Reset, base ---------- */

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

html {
    background: var(--paper);
    color: var(--ink);
    color-scheme: light dark;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-size-adjust: 100%;
    background-image:
        linear-gradient(to right,  oklch(45% 0.02 240 / 0.035) 1px, transparent 1px),
        linear-gradient(to bottom, oklch(45% 0.02 240 / 0.035) 1px, transparent 1px);
    background-size: 24px 24px;
    background-position: 0 0;
}

@media (prefers-color-scheme: dark) {
    html {
        background-image:
            linear-gradient(to right,  oklch(80% 0.02 145 / 0.04) 1px, transparent 1px),
            linear-gradient(to bottom, oklch(80% 0.02 145 / 0.04) 1px, transparent 1px);
    }
}

body {
    margin: 0;
    font-family: var(--font-sans);
    font-size: var(--step-0);
    line-height: 1.55;
    text-rendering: optimizeLegibility;
    font-feature-settings: "ss01", "ss02", "kern";
    overflow-x: hidden;
}

::selection {
    background: var(--moss-soft);
    color: var(--ink);
}

a {
    color: inherit;
    text-decoration: none;
}

code {
    font-family: var(--font-mono);
    font-size: 0.88em;
    background: var(--code-bg-2);
    padding: 0.1em 0.35em;
    border-radius: 3px;
    border: 1px solid var(--rule);
    white-space: nowrap;
}

p code, li code, .hero__lede code, .spec__body code, .closing__lede code, .model__note code, .diagram__caption code {
    color: var(--ink);
}

em {
    font-family: var(--font-serif);
    font-style: italic;
    font-weight: 400;
    color: var(--moss);
}

strong {
    font-weight: 600;
    letter-spacing: -0.005em;
}

/* ---------- Accessibility ---------- */

:focus-visible {
    outline: 2px solid var(--moss);
    outline-offset: 3px;
    border-radius: 2px;
}

.skip-link {
    position: absolute;
    top: -40px;
    left: 8px;
    background: var(--ink);
    color: var(--paper);
    padding: 8px 14px;
    border-radius: 4px;
    z-index: 100;
    text-decoration: none;
    font-family: var(--font-mono);
    font-size: 0.85rem;
}
.skip-link:focus { top: 8px; }

/* ---------- Masthead ---------- */

.masthead {
    border-bottom: 1px solid var(--rule);
    background: color-mix(in oklab, var(--paper) 86%, transparent);
    backdrop-filter: saturate(180%) blur(10px);
    -webkit-backdrop-filter: saturate(180%) blur(10px);
    position: sticky;
    top: 0;
    z-index: 50;
}

.masthead__inner {
    max-width: var(--col-max);
    margin: 0 auto;
    padding: var(--s-3) var(--gutter);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--s-5);
}

.masthead__brand {
    display: inline-flex;
    align-items: baseline;
    gap: 0.55ch;
    color: var(--ink);
    text-decoration: none;
}

.masthead__mark {
    width: 1.4rem;
    height: 1.4rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: var(--moss);
    transform: translateY(0.25rem);
    transition: color 0.25s var(--easing);
}
.masthead__brand:hover .masthead__mark { color: var(--moss-2); }
.masthead__mark svg { width: 100%; height: 100%; }

.masthead__wordmark {
    font-family: var(--font-serif);
    font-style: italic;
    font-weight: 500;
    font-size: 1.45rem;
    letter-spacing: -0.015em;
    line-height: 1;
}

.masthead__nav {
    display: flex;
    align-items: center;
    gap: var(--s-5);
}

.masthead__nav ul {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    gap: var(--s-5);
}

.masthead__nav a {
    font-size: var(--step--1);
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: var(--ink-2);
    font-family: var(--font-mono);
    transition: color 0.2s var(--easing);
    position: relative;
    padding: 4px 0;
}

.masthead__nav a::after {
    content: "";
    position: absolute;
    bottom: 0;
    left: 0;
    height: 1px;
    width: 0;
    background: var(--moss);
    transition: width 0.25s var(--easing);
}

.masthead__nav a:hover,
.masthead__nav a:focus-visible {
    color: var(--ink);
}
.masthead__nav a:hover::after { width: 100%; }

.masthead__versions {
    display: inline-flex;
    align-items: center;
    gap: 0.4ch;
    font-family: var(--font-mono);
    font-size: var(--step--1);
    color: var(--ink-3);
    padding: 4px 8px;
    border: 1px solid var(--rule);
    border-radius: 3px;
    background: var(--paper-deep);
    transition: border-color 0.2s var(--easing), color 0.2s var(--easing);
}
.masthead__versions:hover,
.masthead__versions:focus-within {
    border-color: var(--moss);
    color: var(--ink);
}
.masthead__versions select {
    appearance: none;
    -webkit-appearance: none;
    background: transparent;
    border: 0;
    color: inherit;
    font: inherit;
    padding: 0;
    cursor: pointer;
    padding-right: 0.4ch;
}
.masthead__versions select:focus { outline: none; }

@media (max-width: 720px) {
    .masthead__nav ul { gap: var(--s-4); }
    .masthead__nav ul li:nth-child(3) { display: none; }
    .masthead__versions { display: none; }
}
@media (max-width: 560px) {
    .masthead__nav ul li:nth-child(2) { display: none; }
}

/* ---------- Generic section header ---------- */

.section-header {
    max-width: var(--col-max);
    margin: 0 auto;
    padding: 0 var(--gutter);
}

.section-header__num {
    display: inline-block;
    font-family: var(--font-mono);
    font-size: var(--step--1);
    text-transform: uppercase;
    letter-spacing: 0.18em;
    color: var(--moss);
    padding-bottom: var(--s-3);
    border-bottom: 1px solid var(--moss);
    margin-bottom: var(--s-4);
}

.section-header__title {
    font-family: var(--font-serif);
    font-weight: 400;
    font-size: var(--step-3);
    line-height: 1.05;
    letter-spacing: -0.02em;
    margin: 0 0 var(--s-3) 0;
    max-width: 24ch;
}

.section-header__lede {
    font-family: var(--font-serif);
    font-size: var(--step-1);
    line-height: 1.4;
    color: var(--ink-2);
    max-width: 50ch;
    margin: 0 0 var(--s-7) 0;
    font-feature-settings: "kern", "liga";
}

/* ---------- Kicker label ---------- */

.kicker {
    display: inline-flex;
    align-items: center;
    gap: 0.6ch;
    font-family: var(--font-mono);
    font-size: var(--step--1);
    text-transform: uppercase;
    letter-spacing: 0.18em;
    color: var(--ink-3);
    margin: 0 0 var(--s-5) 0;
}
.kicker__num { color: var(--moss); }
.kicker__sep { color: var(--rule); }

/* ---------- Hero ---------- */

.hero {
    position: relative;
    max-width: var(--col-max);
    margin: 0 auto;
    padding: var(--s-9) var(--gutter) var(--s-9);
    display: grid;
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
    gap: var(--s-7) clamp(var(--s-7), 6vw, var(--s-9));
    align-items: start;
    overflow: hidden;
}

.hero__paper {
    position: absolute;
    inset: -10% -5% auto auto;
    width: 50%;
    height: 70%;
    background:
        radial-gradient(ellipse at 30% 40%, oklch(75% 0.12 145 / 0.10), transparent 60%),
        radial-gradient(ellipse at 80% 70%, oklch(60% 0.14 70 / 0.07),  transparent 65%);
    filter: blur(20px);
    pointer-events: none;
    z-index: 0;
}

@media (prefers-color-scheme: dark) {
    .hero__paper {
        background:
            radial-gradient(ellipse at 30% 40%, oklch(60% 0.18 145 / 0.16), transparent 60%),
            radial-gradient(ellipse at 80% 70%, oklch(65% 0.18 70 / 0.10),  transparent 65%);
    }
}

.hero__copy { position: relative; z-index: 1; }

.hero__title {
    font-family: var(--font-serif);
    font-weight: 400;
    font-size: var(--step-4);
    line-height: 0.96;
    letter-spacing: -0.028em;
    margin: 0 0 var(--s-5) 0;
    text-wrap: balance;
    max-width: 18ch;
}
.hero__title em {
    color: var(--moss);
    font-style: italic;
}

.hero__lede {
    font-family: var(--font-serif);
    font-size: var(--step-1);
    line-height: 1.45;
    color: var(--ink-2);
    max-width: 42ch;
    margin: 0 0 var(--s-6) 0;
}
.hero__lede strong { color: var(--ink); }
.hero__lede a.link { color: var(--moss); }

.cta-row {
    display: inline-flex;
    flex-wrap: wrap;
    gap: var(--s-3);
    align-items: center;
    margin: 0 0 var(--s-7) 0;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.6ch;
    padding: 0.85em 1.4em;
    font-family: var(--font-mono);
    font-size: var(--step--1);
    text-transform: uppercase;
    letter-spacing: 0.14em;
    border-radius: 4px;
    border: 1px solid currentColor;
    cursor: pointer;
    transition: transform 0.18s var(--easing),
                background-color 0.2s var(--easing),
                color 0.2s var(--easing),
                border-color 0.2s var(--easing);
    text-decoration: none;
}

.btn--ink {
    background: var(--ink);
    color: var(--paper);
    border-color: var(--ink);
}
.btn--ink:hover,
.btn--ink:focus-visible {
    background: var(--moss-2);
    border-color: var(--moss-2);
    transform: translateY(-1px);
}

.btn--ghost {
    background: transparent;
    color: var(--ink);
    border-color: var(--ink-3);
}
.btn--ghost:hover,
.btn--ghost:focus-visible {
    border-color: var(--moss);
    color: var(--moss);
}

.btn__arrow {
    display: inline-block;
    transition: transform 0.22s var(--easing);
}
.btn:hover .btn__arrow { transform: translateX(3px); }

.hero__meta {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(7rem, 1fr));
    column-gap: var(--s-5);
    row-gap: var(--s-4);
    margin: 0;
    padding-top: var(--s-5);
    border-top: 1px solid var(--rule);
    max-width: 540px;
}
.hero__meta > div {
    display: flex;
    flex-direction: column;
    gap: 4px;
}
.hero__meta dt {
    font-family: var(--font-mono);
    font-size: 0.72rem;
    text-transform: uppercase;
    letter-spacing: 0.14em;
    color: var(--ink-3);
}
.hero__meta dd {
    margin: 0;
    font-family: var(--font-mono);
    font-size: var(--step-0);
    color: var(--ink);
}

/* ----- Hero code card ----- */

.hero__code {
    position: relative;
    margin: 0;
    background: var(--code-bg);
    border: 1px solid var(--rule);
    border-radius: 8px;
    box-shadow: var(--shadow);
    overflow: hidden;
    z-index: 1;
    transform: rotate(0.4deg);
    transform-origin: top left;
}

.hero__code-cap {
    display: flex;
    align-items: center;
    gap: var(--s-3);
    padding: 0.5rem 0.85rem;
    background: var(--code-bg-2);
    border-bottom: 1px solid var(--rule);
}
.hero__code-dots {
    display: inline-flex;
    gap: 6px;
}
.hero__code-dots span {
    width: 10px; height: 10px; border-radius: 50%;
    background: var(--rule);
}
.hero__code-dots span:nth-child(1) { background: oklch(70% 0.16 30); }
.hero__code-dots span:nth-child(2) { background: oklch(78% 0.16 90); }
.hero__code-dots span:nth-child(3) { background: oklch(70% 0.16 145); }
.hero__code-name {
    font-family: var(--font-mono);
    font-size: 0.78rem;
    color: var(--ink-2);
    flex: 1;
    text-align: center;
}
.hero__code-meta {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: var(--ink-3);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.code {
    margin: 0;
    padding: 1rem 1rem 1rem 0;
    overflow-x: auto;
    font-family: var(--font-mono);
    font-size: clamp(0.72rem, 0.5rem + 0.6vw, 0.86rem);
    line-height: 1.65;
    color: var(--ink);
    tab-size: 4;
}
.code code { background: none; border: 0; padding: 0; white-space: pre; }

.ln {
    display: inline-block;
    width: 3ch;
    margin-right: 1rem;
    padding-right: 0.5rem;
    border-right: 1px solid var(--rule);
    color: var(--code-line);
    text-align: right;
    user-select: none;
}

.tk-key { color: var(--code-key); font-weight: 500; }
.tk-typ { color: var(--code-typ); }
.tk-fn  { color: var(--code-fn); }
.tk-str { color: var(--code-str); }
.tk-cmt { color: var(--code-cmt); font-style: italic; }

.hero__code-foot {
    display: flex;
    gap: 0.7ch;
    align-items: baseline;
    padding: 0.7rem 1rem;
    background: var(--code-bg-2);
    border-top: 1px solid var(--rule);
    font-family: var(--font-serif);
    font-style: italic;
    font-size: 0.86rem;
    color: var(--ink-2);
    line-height: 1.4;
}
.hero__code-mark {
    color: var(--moss);
    font-weight: 600;
    font-family: var(--font-mono);
    font-style: normal;
}

@media (max-width: 940px) {
    .hero { grid-template-columns: 1fr; padding-block: var(--s-8); }
    .hero__code { transform: none; }
    .hero__title { max-width: 22ch; }
}

/* ---------- Rule between sections ---------- */

.rule {
    height: 1px;
    background: var(--rule);
    max-width: var(--col-max);
    margin: 0 auto;
}

/* ---------- Specifications ---------- */

.specs { padding: var(--s-9) 0 var(--s-9); }

.spec-list {
    list-style: none;
    margin: 0 auto;
    padding: 0 var(--gutter);
    max-width: var(--col-max);
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--s-7) var(--s-6);
    counter-reset: spec;
    container-type: inline-size;
}

.spec {
    position: relative;
    padding: var(--s-5) 0 0 0;
    border-top: 1px solid var(--rule);
}

.spec__index {
    position: absolute;
    top: var(--s-3);
    right: 0;
    font-family: var(--font-mono);
    font-size: var(--step--1);
    color: var(--moss);
    letter-spacing: 0.1em;
}

.spec__title {
    font-family: var(--font-serif);
    font-weight: 500;
    font-size: var(--step-2);
    line-height: 1.15;
    letter-spacing: -0.015em;
    margin: 0 0 var(--s-3) 0;
    text-wrap: balance;
    max-width: 22ch;
}

.spec__body {
    font-size: var(--step-0);
    line-height: 1.55;
    color: var(--ink-2);
    margin: 0;
    max-width: 38ch;
}

/* ---------- Isolation map diagram ---------- */

.model { padding: var(--s-9) 0 var(--s-9); }

.diagram {
    position: relative;
    max-width: var(--col-max);
    margin: 0 auto;
    padding: var(--s-6) var(--gutter);
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr) minmax(0, 1fr);
    gap: var(--s-5);
}

.diagram__grid {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(to right,  oklch(50% 0.10 145 / 0.06) 1px, transparent 1px),
        linear-gradient(to bottom, oklch(50% 0.10 145 / 0.06) 1px, transparent 1px);
    background-size: 12px 12px;
    pointer-events: none;
    z-index: 0;
}

.diagram__panel {
    position: relative;
    z-index: 1;
    background: var(--paper-deep);
    border: 1px solid var(--rule);
    border-radius: 6px;
    padding: var(--s-4);
    display: flex;
    flex-direction: column;
    gap: var(--s-3);
}

.diagram__panel--sendable { border-color: oklch(70% 0.06 60 / 0.5); }
.diagram__panel--main     { border-color: oklch(65% 0.06 240 / 0.5); }
.diagram__panel--actor    { border-color: oklch(55% 0.10 145 / 0.55); }

.diagram__chip {
    align-self: flex-start;
    font-family: var(--font-mono);
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.16em;
    color: var(--ink-2);
    padding: 3px 8px;
    background: var(--tag-bg);
    border-radius: 3px;
}
.diagram__panel--actor .diagram__chip { color: var(--moss); }

.diagram__box {
    font-family: var(--font-mono);
    font-size: var(--step-0);
    color: var(--ink);
    background: var(--paper);
    border: 1px solid var(--rule);
    border-radius: 4px;
    padding: var(--s-3) var(--s-4);
    line-height: 1.35;
}
.diagram__box--accent {
    border-color: var(--moss);
    box-shadow: inset 0 0 0 1px var(--moss-soft);
}
.diagram__role {
    display: block;
    font-family: var(--font-serif);
    font-style: italic;
    font-weight: 400;
    color: var(--ink-3);
    font-size: 0.86rem;
    margin-top: 2px;
    letter-spacing: 0;
}

.diagram__edge {
    align-self: center;
    font-family: var(--font-mono);
    font-size: 0.78rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--moss);
}

.diagram__caption {
    margin-top: var(--s-3);
    font-family: var(--font-mono);
    font-size: 0.78rem;
    line-height: 1.65;
    color: var(--ink-2);
}
.diagram__caption code { background: none; border: 0; padding: 0; color: var(--ink); }

.model__note {
    max-width: 56ch;
    margin: var(--s-6) auto 0;
    padding: 0 var(--gutter);
    font-family: var(--font-serif);
    font-style: italic;
    font-size: var(--step-1);
    line-height: 1.5;
    color: var(--ink-2);
}
.model__note-mark {
    color: var(--moss);
    font-family: var(--font-mono);
    font-style: normal;
    margin-right: 0.5ch;
}

@media (max-width: 860px) {
    .diagram { grid-template-columns: 1fr; }
}

/* ---------- Closing call-to-action ---------- */

.closing { padding: var(--s-9) 0 var(--s-10); }

.closing__inner {
    max-width: var(--col-max);
    margin: 0 auto;
    padding: 0 var(--gutter);
}

.closing__title {
    font-family: var(--font-serif);
    font-weight: 400;
    font-size: var(--step-3);
    letter-spacing: -0.022em;
    line-height: 1.05;
    margin: 0 0 var(--s-3);
    text-wrap: balance;
    max-width: 22ch;
}

.closing__lede {
    font-family: var(--font-serif);
    font-size: var(--step-1);
    color: var(--ink-2);
    line-height: 1.45;
    margin: 0 0 var(--s-6);
    max-width: 56ch;
}

.install {
    margin: 0 0 var(--s-6) 0;
    padding: 1rem 1.25rem;
    background: var(--code-bg);
    border: 1px solid var(--rule);
    border-radius: 6px;
    font-family: var(--font-mono);
    font-size: clamp(0.78rem, 0.6rem + 0.4vw, 0.92rem);
    line-height: 1.7;
    overflow-x: auto;
}
.install code { background: none; border: 0; padding: 0; white-space: pre; }

/* ---------- Colophon (footer) ---------- */

.colophon {
    border-top: 1px solid var(--rule);
    background: var(--paper-deep);
    padding: var(--s-5) 0;
}

.colophon__inner {
    max-width: var(--col-max);
    margin: 0 auto;
    padding: 0 var(--gutter);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--s-4);
    flex-wrap: wrap;
    font-family: var(--font-mono);
    font-size: var(--step--1);
    color: var(--ink-3);
}

.colophon__line { margin: 0; }
.colophon__line--right { color: var(--ink-2); }

.colophon__sep {
    margin: 0 0.6ch;
    color: var(--rule);
}

.link {
    color: var(--moss);
    text-decoration: none;
    border-bottom: 1px solid currentColor;
    transition: color 0.2s var(--easing), border-color 0.2s var(--easing);
}
.link:hover { color: var(--moss-2); }
.link--mono { font-family: var(--font-mono); }

@media (max-width: 540px) {
    .colophon__inner { flex-direction: column; align-items: flex-start; gap: var(--s-2); }
}

/* ---------- Motion ---------- */

@media (prefers-reduced-motion: no-preference) {
    .hero__copy > *,
    .hero__code {
        animation: rise 0.7s var(--easing) both;
    }
    .hero__copy > .kicker        { animation-delay: 0.00s; }
    .hero__copy > .hero__title   { animation-delay: 0.08s; }
    .hero__copy > .hero__lede    { animation-delay: 0.16s; }
    .hero__copy > .cta-row       { animation-delay: 0.24s; }
    .hero__copy > .hero__meta    { animation-delay: 0.32s; }
    .hero__code                   { animation-delay: 0.20s; animation-name: rise-tilt; }
}

@keyframes rise {
    from { opacity: 0; transform: translateY(12px); }
    to   { opacity: 1; transform: none; }
}

@keyframes rise-tilt {
    from { opacity: 0; transform: translateY(12px) rotate(0deg); }
    to   { opacity: 1; transform: translateY(0) rotate(0.4deg); }
}

@media (max-width: 940px) {
    @keyframes rise-tilt {
        from { opacity: 0; transform: translateY(12px); }
        to   { opacity: 1; transform: none; }
    }
}

@media (prefers-reduced-motion: no-preference) and (hover: hover) {
    .spec { transition: border-color 0.25s var(--easing); }
    .spec:hover { border-color: var(--moss); }
    .spec:hover .spec__index { color: var(--moss-2); }
}

/* ---------- Print ---------- */

@media print {
    .masthead, .colophon, .cta-row, .hero__paper { display: none; }
    body { background: white; color: black; }
}