/**
 * Bikez v2 — editorial design system
 */

:root {
    --color-canvas: #f6f6f5;
    --color-surface: #ffffff;
    --color-ink: #1a1d21;
    --color-muted: #4a5259;
    --color-rule: rgba(26, 29, 33, 0.14);
    --color-accent: #2d8f82;
    --color-accent-hover: #236f65;
    --color-brand: #6fc2b3;
    --color-workshop: #9a4d2e;
    --color-focus: #0b5fff;

    --font-display: "Libre Baskerville", Georgia, "Times New Roman", serif;
    --font-body: "Source Sans 3", system-ui, -apple-system, "Segoe UI", sans-serif;
    --font-workshop: ui-monospace, "Cascadia Code", "Segoe UI Mono", monospace;

    --space-1: 0.5rem;
    --space-2: 0.75rem;
    --space-3: 1rem;
    --space-4: 1.5rem;
    --space-5: 2rem;
    --space-6: 3rem;
    --space-7: 4.5rem;

    --container: 74rem;
    --measure: 42rem;
    --article: 40rem;

    --radius: 4px;
}

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

html { scroll-behavior: smooth; }

body {
    margin: 0;
    font-family: var(--font-body);
    font-size: 1.0625rem;
    line-height: 1.65;
    color: var(--color-ink);
    background: var(--color-canvas);
    -webkit-font-smoothing: antialiased;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

a {
    color: var(--color-accent);
    text-underline-offset: 0.14em;
}

a:hover { color: var(--color-accent-hover); }

h1, h2, h3, h4 {
    font-family: var(--font-display);
    line-height: 1.2;
    font-weight: 700;
    color: var(--color-ink);
    text-wrap: balance;
}

p { margin: 0 0 var(--space-3); }

ul, ol { padding-left: 1.2rem; }

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

.container--narrow {
    width: min(100% - 2.5rem, var(--measure));
}

.container--article {
    width: min(100% - 2.5rem, var(--article));
}

.screen-reader-text {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.skip-link {
    position: absolute;
    left: var(--space-3);
    top: -4rem;
    z-index: 50;
    padding: var(--space-2) var(--space-3);
    background: var(--color-ink);
    color: #fff;
    text-decoration: none;
}

.skip-link:focus { top: var(--space-3); }

/* Header */
.site-header {
    border-bottom: 1px solid var(--color-rule);
    background: var(--color-canvas);
}

.site-header__inner {
    display: flex;
    align-items: center;
    gap: var(--space-4);
    min-height: 4.25rem;
    flex-wrap: wrap;
}

.site-title,
.site-footer__title {
    font-family: var(--font-body);
    font-size: 1.125rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    color: var(--color-ink);
    text-decoration: none;
}

.site-logo img { max-height: 2.75rem; width: auto; }

.site-header__search { margin-left: auto; flex: 1 1 12rem; max-width: 16rem; }

.header-search {
    display: flex;
    border-bottom: 1px solid var(--color-rule);
}

.header-search__input {
    flex: 1;
    border: 0;
    background: transparent;
    padding: 0.45rem 0;
    font: inherit;
    color: var(--color-ink);
}

.header-search__input::placeholder { color: var(--color-muted); }

.header-search__submit {
    border: 0;
    background: transparent;
    color: var(--color-accent);
    font-weight: 600;
    cursor: pointer;
    padding: 0.45rem 0 0.45rem var(--space-2);
}

.menu-toggle {
    display: none;
    align-items: center;
    gap: var(--space-1);
    padding: var(--space-2) var(--space-3);
    border: 1px solid var(--color-rule);
    border-radius: var(--radius);
    background: var(--color-surface);
    font: inherit;
    cursor: pointer;
}

.menu-toggle__icon {
    width: 1.1rem;
    height: 2px;
    background: currentColor;
    box-shadow: 0 -5px 0 currentColor, 0 5px 0 currentColor;
}

.primary-navigation { width: 100%; }

.primary-menu,
.footer-menu {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2) var(--space-4);
    list-style: none;
    margin: 0;
    padding: 0;
}

.primary-menu a,
.footer-menu a {
    color: var(--color-ink);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.9375rem;
}

.primary-menu a:hover,
.footer-menu a:hover { color: var(--color-accent); }

/* Masthead */
.masthead {
    padding-block: var(--space-6) var(--space-5);
    border-bottom: 1px solid var(--color-rule);
}

.masthead__title {
    font-size: clamp(2rem, 4.5vw, 3rem);
    letter-spacing: -0.03em;
    margin: 0 0 var(--space-3);
    max-width: 18ch;
}

.masthead__dek {
    font-size: 1.125rem;
    color: var(--color-muted);
    max-width: 38ch;
    margin: 0 0 var(--space-4);
    text-wrap: pretty;
}

.masthead__link {
    font-weight: 600;
    text-decoration: none;
}

.masthead__link:hover { text-decoration: underline; }

/* Section labels */
.section-label {
    font-family: var(--font-body);
    font-size: 0.8125rem;
    font-weight: 600;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--color-muted);
    margin: 0 0 var(--space-3);
}

.section-label--workshop { color: var(--color-workshop); }

.section-head {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: var(--space-3);
    margin-bottom: var(--space-4);
    border-bottom: 1px solid var(--color-rule);
    padding-bottom: var(--space-2);
}

.section-head__title {
    font-size: clamp(1.35rem, 2.5vw, 1.75rem);
    margin: 0;
}

.section-head__link {
    font-family: var(--font-body);
    font-size: 0.9375rem;
    font-weight: 600;
    text-decoration: none;
    white-space: nowrap;
}

/* Lead layout */
.lead-layout {
    display: grid;
    gap: var(--space-6);
    padding-block: var(--space-6);
}

/* Feature lead */
.feature-lead__media {
    margin-bottom: var(--space-4);
    background: var(--color-rule);
}

.feature-lead__media img {
    width: 100%;
    aspect-ratio: 16 / 9;
    object-fit: cover;
}

.feature-lead__title {
    font-size: clamp(1.75rem, 3.5vw, 2.5rem);
    margin: 0 0 var(--space-3);
    letter-spacing: -0.025em;
}

.feature-lead__title a {
    color: inherit;
    text-decoration: none;
}

.feature-lead__title a:hover { color: var(--color-accent); }

.feature-lead__excerpt {
    font-size: 1.125rem;
    color: var(--color-muted);
    margin-bottom: var(--space-3);
    text-wrap: pretty;
}

/* Topic index */
.topic-index {
    border-top: 1px solid var(--color-rule);
    padding-top: var(--space-4);
}

.topic-index__list {
    list-style: none;
    margin: 0;
    padding: 0;
}

.topic-index__item {
    border-bottom: 1px solid var(--color-rule);
}

.topic-index__link {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: var(--space-1) var(--space-3);
    padding-block: var(--space-3);
    text-decoration: none;
    color: inherit;
}

.topic-index__link:hover .topic-index__title { color: var(--color-accent); }

.topic-index__title {
    font-family: var(--font-body);
    font-size: 1rem;
    font-weight: 700;
    margin: 0;
}

.topic-index__description {
    grid-column: 1;
    margin: 0;
    font-size: 0.875rem;
    color: var(--color-muted);
}

.topic-index__count {
    font-family: var(--font-workshop);
    font-size: 0.8125rem;
    font-variant-numeric: tabular-nums;
    color: var(--color-muted);
    align-self: start;
}

/* Article rows */
.article-list { list-style: none; margin: 0; padding: 0; }

.article-row {
    border-bottom: 1px solid var(--color-rule);
}

.article-row__link {
    display: grid;
    gap: var(--space-3);
    padding-block: var(--space-4);
    text-decoration: none;
    color: inherit;
}

.article-row__link:hover .article-row__title { color: var(--color-accent); }

.article-row__media img {
    width: 100%;
    aspect-ratio: 16 / 10;
    object-fit: cover;
    background: var(--color-rule);
}

.article-row__title {
    font-family: var(--font-display);
    font-size: 1.25rem;
    margin: 0 0 var(--space-2);
    letter-spacing: -0.02em;
}

.article-row__excerpt {
    margin: 0;
    color: var(--color-muted);
    font-size: 0.975rem;
    text-wrap: pretty;
}

.post-meta {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2) var(--space-3);
    font-size: 0.8125rem;
    margin-bottom: var(--space-2);
}

.post-meta__category {
    font-family: var(--font-workshop);
    font-size: 0.6875rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--color-accent);
    text-decoration: none;
}

.post-meta__date { color: var(--color-muted); }

/* Latest asymmetric grid */
.latest-grid {
    display: grid;
    gap: var(--space-4);
    padding-block: var(--space-6);
}

.latest-grid__secondary {
    display: grid;
    gap: var(--space-4);
}

.article-compact {
    border-bottom: 1px solid var(--color-rule);
    padding-bottom: var(--space-4);
}

.article-compact__title {
    font-size: 1.125rem;
    margin: 0 0 var(--space-2);
}

.article-compact__title a {
    color: inherit;
    text-decoration: none;
}

.article-compact__title a:hover { color: var(--color-accent); }

/* Guide module */
.guide-module {
    padding-block: var(--space-6);
    border-block: 1px solid var(--color-rule);
}

.guide-module__inner {
    display: grid;
    gap: var(--space-5);
}

.guide-module__title {
    font-size: clamp(1.5rem, 3vw, 2rem);
    margin: 0;
}

.guide-module__steps {
    margin: 0;
    padding-left: 1.25rem;
    color: var(--color-ink);
}

.guide-module__steps li {
    margin-bottom: var(--space-2);
    padding-left: var(--space-1);
}

.guide-module__steps li::marker {
    font-family: var(--font-workshop);
    font-weight: 700;
    color: var(--color-workshop);
}

.guide-module__link {
    font-weight: 600;
    text-decoration: none;
}

.guide-module__link:hover { text-decoration: underline; }

/* Workshop note */
.workshop-note {
    padding-block: var(--space-5);
}

.workshop-note__title {
    font-size: 1.35rem;
    margin: 0 0 var(--space-2);
}

.workshop-note__text {
    color: var(--color-muted);
    margin: 0 0 var(--space-3);
    max-width: 40rem;
}

.workshop-note__link {
    font-weight: 600;
    text-decoration: none;
}

/* Reading list */
.reading-list {
    padding-block: var(--space-6);
    border-top: 1px solid var(--color-rule);
}

.reading-list__grid {
    display: grid;
    gap: var(--space-2) var(--space-5);
    list-style: none;
    margin: 0;
    padding: 0;
}

.reading-list__grid a {
    color: var(--color-ink);
    text-decoration: none;
    font-weight: 600;
}

.reading-list__grid a:hover {
    color: var(--color-accent);
    text-decoration: underline;
}

/* Buttons (minimal) */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.7rem 1.1rem;
    border-radius: var(--radius);
    border: 1px solid var(--color-ink);
    background: var(--color-ink);
    color: #fff;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    font: inherit;
}

.btn:hover {
    background: var(--color-accent);
    border-color: var(--color-accent);
    color: #fff;
}

.btn--ghost {
    background: transparent;
    color: var(--color-ink);
}

.btn--ghost:hover {
    background: transparent;
    color: var(--color-accent);
    border-color: var(--color-accent);
}

/* Breadcrumbs */
.breadcrumbs {
    margin-block: var(--space-4);
    font-size: 0.875rem;
}

.breadcrumbs__list {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-1);
    list-style: none;
    margin: 0;
    padding: 0;
    color: var(--color-muted);
}

.breadcrumbs__item:not(:last-child)::after {
    content: "/";
    margin-left: var(--space-1);
}

.breadcrumbs a {
    color: var(--color-muted);
    text-decoration: none;
}

.breadcrumbs a:hover { color: var(--color-accent); }

/* Archive */
.archive-header {
    padding-block: var(--space-5) var(--space-4);
    border-bottom: 1px solid var(--color-rule);
    margin-bottom: var(--space-2);
}

.archive-header__title {
    font-size: clamp(2rem, 4vw, 2.75rem);
    margin: 0 0 var(--space-3);
}

.archive-header__description {
    color: var(--color-muted);
    max-width: var(--measure);
}

.archive-header__description p:last-child { margin-bottom: 0; }

/* Single article */
.site-main { padding-bottom: var(--space-7); }

.article-header__title,
.entry__title {
    font-size: clamp(2rem, 4vw, 2.75rem);
    margin: 0 0 var(--space-3);
    letter-spacing: -0.025em;
}

.article-header__excerpt,
.entry__excerpt {
    font-size: 1.125rem;
    color: var(--color-muted);
    text-wrap: pretty;
}

.article-header__image,
.entry__featured-image {
    margin: var(--space-5) 0;
}

.article-header__image img,
.entry__featured-image img { width: 100%; }

.article-layout {
    display: grid;
    gap: var(--space-5);
    margin-top: var(--space-5);
}

.table-of-contents {
    padding: var(--space-4);
    border: 1px solid var(--color-rule);
    background: var(--color-surface);
}

.table-of-contents__title {
    font-family: var(--font-body);
    font-size: 0.8125rem;
    font-weight: 600;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    margin: 0 0 var(--space-3);
    color: var(--color-muted);
}

.table-of-contents__list {
    margin: 0;
    padding-left: 1rem;
    font-size: 0.9375rem;
}

.table-of-contents__item { margin-bottom: var(--space-1); }

.table-of-contents__item--level-3 {
    margin-left: var(--space-3);
    font-size: 0.875rem;
}

.table-of-contents a {
    color: var(--color-ink);
    text-decoration: none;
}

.table-of-contents a:hover { text-decoration: underline; }

.entry__content h2,
.article-content h2 {
    font-size: 1.5rem;
    margin-top: var(--space-6);
    margin-bottom: var(--space-3);
}

.entry__content h3,
.article-content h3 {
    font-size: 1.2rem;
    margin-top: var(--space-5);
    margin-bottom: var(--space-2);
}

.entry__content blockquote,
.article-content blockquote {
    margin: var(--space-5) 0;
    padding: var(--space-3) var(--space-4);
    background: var(--color-surface);
    border: 1px solid var(--color-rule);
    color: var(--color-ink);
    font-family: var(--font-display);
}

.author-box {
    margin-top: var(--space-6);
    padding-top: var(--space-5);
    border-top: 1px solid var(--color-rule);
}

.author-box__title {
    font-family: var(--font-body);
    font-size: 0.8125rem;
    font-weight: 600;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--color-muted);
    margin: 0 0 var(--space-2);
}

.author-box__name {
    font-weight: 700;
    margin: 0 0 var(--space-1);
}

.author-box__bio {
    margin: 0;
    color: var(--color-muted);
}

.post-navigation {
    display: grid;
    gap: var(--space-3);
    margin-top: var(--space-5);
    padding-top: var(--space-5);
    border-top: 1px solid var(--color-rule);
}

.post-navigation a {
    display: block;
    text-decoration: none;
    color: var(--color-ink);
    padding-block: var(--space-2);
}

.post-navigation a:hover .post-navigation__title { color: var(--color-accent); }

.post-navigation__label {
    display: block;
    font-size: 0.8125rem;
    color: var(--color-muted);
    margin-bottom: var(--space-1);
}

.post-navigation__title { font-weight: 700; }

.related-posts {
    margin-top: var(--space-6);
    padding-top: var(--space-5);
    border-top: 1px solid var(--color-rule);
}

/* Pagination */
.pagination { margin-top: var(--space-5); }

.pagination__list {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
    list-style: none;
    margin: 0;
    padding: 0;
}

.pagination__item a,
.pagination__item span {
    display: inline-block;
    padding: 0.5rem 0.75rem;
    border: 1px solid var(--color-rule);
    text-decoration: none;
    color: var(--color-ink);
    font-size: 0.9375rem;
}

.pagination__item.is-current span {
    background: var(--color-ink);
    border-color: var(--color-ink);
    color: #fff;
}

/* Search */
.search-form {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
    margin-bottom: var(--space-4);
}

.search-form__input {
    flex: 1 1 14rem;
    padding: 0.65rem 0.75rem;
    border: 1px solid var(--color-rule);
    background: var(--color-surface);
    font: inherit;
}

/* 404 */
.error-404 { padding-block: var(--space-6); max-width: 36rem; }

.error-404__code {
    font-family: var(--font-workshop);
    font-size: 3rem;
    color: var(--color-accent);
    margin: 0 0 var(--space-2);
}

.error-404__title { margin: 0 0 var(--space-3); }

.error-404__text { color: var(--color-muted); }

.error-404__actions { margin: var(--space-4) 0 var(--space-5); }

.section__empty,
.no-results__text { color: var(--color-muted); }

/* Footer */
.site-footer {
    margin-top: var(--space-6);
    border-top: 3px solid var(--color-ink);
    background: var(--color-canvas);
}

.site-footer__inner {
    display: grid;
    gap: var(--space-5);
    padding-block: var(--space-5);
}

.site-footer__tagline {
    margin: var(--space-2) 0 0;
    color: var(--color-muted);
    max-width: 28rem;
}

.site-footer__newsletter {
    padding-top: var(--space-4);
    border-top: 1px solid var(--color-rule);
}

.site-footer__newsletter-text {
    margin: 0 0 var(--space-3);
    color: var(--color-muted);
    font-size: 0.9375rem;
}

.site-footer__bottom {
    padding-block: var(--space-4);
    border-top: 1px solid var(--color-rule);
}

.site-footer__copy {
    margin: 0;
    font-size: 0.875rem;
    color: var(--color-muted);
}

.site-footer__copy a {
    color: inherit;
    text-decoration: none;
}

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

@media (min-width: 48rem) {
    .site-header__inner { flex-wrap: nowrap; }

    .primary-navigation {
        width: auto;
        margin-left: auto;
    }

    .menu-toggle { display: none; }

    .lead-layout {
        grid-template-columns: 1.4fr 0.9fr;
        align-items: start;
    }

    .topic-index {
        border-top: 0;
        padding-top: 0;
        border-left: 1px solid var(--color-rule);
        padding-left: var(--space-5);
    }

    .article-row__link {
        grid-template-columns: 11rem 1fr;
        align-items: start;
    }

    .latest-grid {
        grid-template-columns: 1.2fr 0.8fr;
        align-items: start;
    }

    .latest-grid__secondary {
        grid-template-columns: 1fr 1fr;
    }

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

    .reading-list__grid {
        grid-template-columns: 1fr 1fr;
    }

    .article-layout {
        grid-template-columns: 14rem 1fr;
        align-items: start;
    }

    .table-of-contents { position: sticky; top: 5rem; }

    .post-navigation { grid-template-columns: 1fr 1fr; }

    .site-footer__inner { grid-template-columns: 1.2fr 1fr; }
}

@media (max-width: 47.99rem) {
    .menu-toggle { display: inline-flex; }

    .site-header__search { order: 3; width: 100%; max-width: none; margin-left: 0; }

    .primary-navigation {
        display: none;
        width: 100%;
        padding-bottom: var(--space-3);
    }

    .primary-navigation.is-open { display: block; }

    .primary-menu { flex-direction: column; }
}

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