/* ATOMFACE — base styles. System fonts only, no webfont requests. */

:root {
  --red: #d0021b;
  --red-dark: #9e0115;
  --ink: #17181a;
  --ink-soft: #45474c;
  --paper: #fefdfb;
  --paper-raised: #ffffff;
  --line: #e4e1db;
  --fiction: #2c3e8c;
  --fiction-bg: #eceffb;
  --nonfiction-bg: #fbe9e9;

  --font-ui: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-serif: "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, "Times New Roman", serif;

  --measure: 68ch;
}

@media (prefers-color-scheme: dark) {
  :root {
    --ink: #f1efe9;
    --ink-soft: #c7c4bc;
    --paper: #16171a;
    --paper-raised: #1f2023;
    --line: #35373b;
    --fiction: #a9b7f2;
    --fiction-bg: #22264a;
    --nonfiction-bg: #401315;
    --red: #ff5a5f;
    --red-dark: #ff8589;
  }
}

* {
  box-sizing: border-box;
}

html {
  color-scheme: light dark;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-ui);
  font-size: 1.0625rem;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

.wrap {
  max-width: 78rem;
  margin-inline: auto;
  padding-inline: 1.5rem;
}

a {
  color: var(--red);
  text-decoration-thickness: from-font;
}

a:hover {
  color: var(--red-dark);
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--paper-raised);
  color: var(--ink);
  padding: 0.75rem 1.25rem;
  z-index: 100;
  border: 2px solid var(--red);
}

.skip-link:focus {
  left: 1rem;
  top: 1rem;
}

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

/* Header */

.site-header {
  border-bottom: 1px solid var(--line);
  background: var(--paper);
  position: sticky;
  top: 0;
  z-index: 10;
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding-block: 0.85rem;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  color: var(--ink);
  text-decoration: none;
  font-weight: 800;
}

.brand__mark {
  border-radius: 6px;
  display: block;
}

.brand__name {
  font-size: 1.15rem;
  letter-spacing: 0.02em;
}

.site-nav ul {
  display: flex;
  gap: 1.5rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.site-nav a {
  color: var(--ink-soft);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.95rem;
  padding: 0.35rem 0;
  border-bottom: 2px solid transparent;
}

.site-nav a:hover,
.site-nav a[aria-current="page"] {
  color: var(--ink);
  border-bottom-color: var(--red);
}

/* Hero */

.hero {
  text-align: center;
  padding-block: 3rem 2.5rem;
  border-bottom: 1px solid var(--line);
  margin-bottom: 2.5rem;
}

.hero__mark {
  border-radius: 16px;
  margin-bottom: 1.25rem;
}

.hero h1 {
  font-family: var(--font-serif);
  font-size: clamp(2rem, 5vw, 2.75rem);
  margin: 0 0 0.75rem;
}

.hero__lede {
  max-width: 46rem;
  margin-inline: auto;
  color: var(--ink-soft);
  font-size: 1.1rem;
}

.hero__nav {
  margin: 2.5rem 0 2.5rem;
  display: flex;
  gap: 1rem;
  justify-content: center;
}

.button {
  display: inline-block;
  background: var(--red);
  color: #fff;
  text-decoration: none;
  font-weight: 700;
  padding: 0.7rem 1.4rem;
  border-radius: 999px;
}

.button:hover {
  background: var(--red-dark);
  color: #fff;
}

.button--ghost {
  background: transparent;
  color: var(--ink);
  border: 2px solid var(--line);
}

.button--ghost:hover {
  border-color: var(--red);
  color: var(--ink);
  background: transparent;
}

/* Home page tabs — pure CSS, no JS. Radio inputs drive which panel shows;
   in browsers without :has() support both panels stay visible, which is
   a harmless fallback since all the content is in the markup either way. */

.tab-radio {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

.tab-label {
  cursor: pointer;
  background: transparent;
  color: var(--ink);
  border: 2px solid var(--line);
  font-weight: 700;
  padding: 0.7rem 1.4rem;
  border-radius: 999px;
}

.tab-radio:checked + .tab-label {
  background: var(--red);
  color: #fff;
  border-color: var(--red);
}

.tab-radio:focus-visible + .tab-label {
  outline: 3px solid var(--red);
  outline-offset: 2px;
}

.tab-label:hover {
  border-color: var(--red);
}

.tab-radio:checked + .tab-label:hover {
  background: var(--red-dark);
  border-color: var(--red-dark);
}

@supports selector(:has(*)) {
  .home-tabs:has(#tab-fiction:checked) .tab-panel[data-panel="nonfiction"] {
    display: none;
  }

  .home-tabs:has(#tab-nonfiction:checked) .tab-panel[data-panel="fiction"] {
    display: none;
  }
}

/* Section headings */

.section-heading {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1.25rem;
}

.section-heading h2 {
  font-family: var(--font-serif);
  font-size: 1.6rem;
  margin: 0;
}

.section-heading a {
  font-size: 0.95rem;
  font-weight: 600;
  text-decoration: none;
  white-space: nowrap;
}

section {
  margin-bottom: 3rem;
}

.section-intro {
  padding-top: 2.5rem;
}

.section-intro h1 {
  font-family: var(--font-serif);
  font-size: clamp(1.9rem, 4vw, 2.5rem);
  margin: 0.35rem 0 0.75rem;
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--red);
  margin: 0;
}

/* Card grid */

.card-grid {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(17rem, 1fr));
  gap: 1.5rem;
}

.card {
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--paper-raised);
}

.card__link {
  display: block;
  padding: 1.25rem;
  text-decoration: none;
  color: inherit;
  height: 100%;
}

.card__kicker {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  margin: 0 0 0.6rem;
  font-size: 0.82rem;
  color: var(--ink-soft);
}

.card__title {
  font-family: var(--font-serif);
  font-size: 1.2rem;
  line-height: 1.35;
  margin: 0 0 0.5rem;
  color: var(--ink);
}

.card__summary {
  color: var(--ink-soft);
  font-size: 0.95rem;
  margin: 0 0 0.75rem;
  line-height: 1.5;
}

.card__byline {
  font-size: 0.82rem;
  color: var(--ink-soft);
  margin: 0;
}

/* Badges / tags */

.badge {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  padding: 0.2rem 0.55rem;
  border-radius: 999px;
  text-decoration: none;
}

.badge--nonfiction {
  background: var(--nonfiction-bg);
  color: var(--red-dark);
}

.badge--fiction {
  background: var(--fiction-bg);
  color: var(--fiction);
}

.tag {
  font-size: 0.78rem;
  color: var(--ink-soft);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 0.1rem 0.55rem;
  margin-right: 0.35rem;
}

/* Article */

.article {
  max-width: var(--measure);
  margin: 0 auto;
  padding: 2.5rem 1.5rem 4rem;
}

.article__header {
  margin-bottom: 2rem;
}

.article__kicker {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  flex-wrap: wrap;
  margin-bottom: 1rem;
}

.article__tags {
  display: flex;
  gap: 0.35rem;
  flex-wrap: wrap;
}

.article h1 {
  font-family: var(--font-serif);
  font-size: clamp(1.9rem, 4.5vw, 2.6rem);
  line-height: 1.2;
  margin: 0 0 0.85rem;
}

.article__dek {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  color: var(--ink-soft);
  line-height: 1.5;
  margin: 0 0 1rem;
}

.article__meta {
  font-size: 0.9rem;
  color: var(--ink-soft);
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin: 0;
}

.article__body {
  font-family: var(--font-serif);
  font-size: 1.15rem;
  line-height: 1.75;
}

.article__body > * + * {
  margin-top: 1.35em;
}

.article__body h2 {
  font-size: 1.4rem;
  margin-top: 2em;
}

.article__body h3 {
  font-size: 1.15rem;
  margin-top: 1.75em;
}

.article__body blockquote {
  border-left: 3px solid var(--red);
  margin: 1.5em 0;
  padding-left: 1.25rem;
  color: var(--ink-soft);
}

.article__footer {
  margin-top: 3rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--line);
  font-family: var(--font-ui);
}

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

/* Plain pages (About) */

.page {
  padding-block: 2.5rem 4rem;
}

.prose {
  max-width: var(--measure);
  margin-inline: auto;
  font-size: 1.1rem;
  line-height: 1.7;
}

.prose h1 {
  font-family: var(--font-serif);
  font-size: clamp(1.9rem, 4vw, 2.5rem);
}

.prose h2 {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  margin-top: 2em;
}

.prose > * + * {
  margin-top: 1.1em;
}

/* Footer */

.site-footer {
  border-top: 1px solid var(--line);
  margin-top: 3rem;
  padding-block: 2.5rem;
  color: var(--ink-soft);
  font-size: 0.9rem;
}

.site-footer__inner {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 2rem;
  align-items: center;
  justify-content: space-between;
}

.site-footer__links {
  display: flex;
  gap: 1.25rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.site-footer__links a {
  color: var(--ink-soft);
  text-decoration: none;
  font-weight: 600;
}

.site-footer__links a:hover {
  color: var(--red);
}

.site-footer__copy {
  width: 100%;
  margin: 0;
  font-size: 0.82rem;
}

@media (max-width: 640px) {
  .site-header__inner {
    flex-wrap: wrap;
  }
  .site-nav ul {
    gap: 1rem;
  }
  .brand__name {
    font-size: 1rem;
  }
}