/* Design tokens ported from reference-site/styles.css — see docs/DESIGN_AND_MOTION.md.
   Scoped to the (frontend) route group only; never loaded by the Payload admin layout. */
:root {
  --color-cobalt: #152aee;
  --color-cobalt-soft: #e1e5ff;
  --color-nearwhite: #f3f4f4;
  --color-offwhite: #fafafa;
  --color-dark: #15161a;
  --color-gray: #686970;
  --color-gray-soft: #74757a;
  --color-border: #d4d5d9;
  --color-lime: #caff75;
  --font-sans: Arial, Helvetica, sans-serif;
  --font-serif: Georgia, 'Times New Roman', serif;
  --font-mono: 'SFMono-Regular', Consolas, 'Liberation Mono', Menlo, monospace;
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --ease-smooth: cubic-bezier(0.65, 0, 0.35, 1);
}

* {
  box-sizing: border-box;
}

html {
  height: 100%;
  background: var(--color-nearwhite);
}

body {
  margin: 0;
  color: var(--color-dark);
  font-family: var(--font-sans);
  -webkit-font-smoothing: antialiased;
  font-size: 16px;
  line-height: 1.5;
}

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

a {
  color: inherit;
}

.site-shell {
  min-height: 100svh;
  max-width: 1920px;
  margin: auto;
  padding: 28px 40px 20px;
  display: grid;
  grid-template-rows: auto 1fr auto;
  gap: 22px;
}

@media (min-width: 1600px) {
  .site-shell {
    padding: 40px 56px 26px;
    gap: 28px;
  }
}

@media (max-width: 760px) {
  .site-shell {
    padding: 18px 18px 16px;
    gap: 16px;
  }
}

/* Header / nav ----------------------------------------------------------- */
.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.brand {
  font-weight: 750;
  font-size: 22px;
  letter-spacing: -1.2px;
  text-decoration: none;
  display: inline-block;
}

.brand span {
  color: var(--color-cobalt);
}

.eyebrow {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 1.5px;
  text-transform: uppercase;
}

.site-nav {
  display: flex;
  gap: 26px;
  align-items: center;
}

.site-nav a {
  position: relative;
  font-size: 14px;
  text-decoration: none;
  padding: 10px 4px;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  color: var(--color-gray);
  border-bottom: 2px solid transparent !important;
}

.site-nav a::after {
  content: '';
  position: absolute;
  left: 4px;
  right: 4px;
  bottom: 6px;
  height: 2px;
  background: var(--color-cobalt);
  transform: scaleX(0);
  transform-origin: left;
}

.site-nav a[aria-current='page'] {
  color: var(--color-cobalt);
}

.site-nav a[aria-current='page']::after {
  transform: scaleX(1);
}

/* Footer ------------------------------------------------------------------ */
.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  color: var(--color-gray);
  font-size: 12px;
}

.site-footer p {
  margin: 0;
}

.footer-right {
  display: flex;
  gap: 26px;
  flex-wrap: wrap;
}

.footer-right a {
  text-decoration: none;
  color: var(--color-cobalt);
}

@media (max-width: 760px) {
  .site-footer {
    font-size: 11px;
  }
}

/* Homepage: hero + intro --------------------------------------------------- */
/* Homepage only: the no-scroll goal from docs/PROJECT_SPEC.md. Content is
   scaled down to fit rather than clipped, and very short viewports (and
   any zoom level that needs more room) fall back to normal scrolling. */
.site-shell:has(.home-main) {
  height: 100svh;
}

@media (max-height: 520px) {
  .site-shell:has(.home-main) {
    height: auto;
  }
}

.home-main {
  display: grid;
  grid-template-columns: 1.32fr 1fr;
  min-height: 0;
  border: 1px solid var(--color-border);
}

@media (max-width: 760px) {
  .home-main {
    grid-template-columns: 1fr;
    grid-template-rows: 1.05fr 1fr;
  }
}

.hero {
  background: var(--color-cobalt);
  color: #fff;
  padding: clamp(24px, 3.4vw, 60px);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  min-width: 0;
  position: relative;
  min-height: 0;
}

.hero .eyebrow {
  color: #fff;
}

.hero-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.hero-mark {
  font-size: 58px;
  font-weight: 400;
  line-height: 1;
  color: var(--color-lime);
}

.hero h1 {
  font-size: min(12.5vw, 21vh);
  line-height: 0.86;
  letter-spacing: -0.07em;
  font-weight: 600;
  margin: 0 0 24px -4px;
}

.hero-bottom {
  display: flex;
  justify-content: space-between;
  align-items: end;
  gap: 20px;
}

.hero-bottom p {
  font-size: 16px;
  line-height: 1.5;
  margin: 0;
  color: var(--color-cobalt-soft);
}

.edition {
  font-family: var(--font-mono);
  font-size: 12px;
  writing-mode: vertical-rl;
  letter-spacing: 1px;
}

@media (max-width: 760px) {
  .hero {
    padding: 23px;
  }
  .hero h1 {
    font-size: min(12vw, 9vh);
    margin: 8px 0 8px -2px;
  }
  .edition {
    writing-mode: horizontal-tb;
    font-size: 10px;
  }
}

.intro {
  padding: clamp(26px, 3.5vw, 64px);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 24px;
}

.intro-top {
  display: flex;
  align-items: center;
  gap: 12px;
}

.intro-top .line {
  width: 26px;
  height: 1px;
  background: var(--color-cobalt);
}

.intro h2 {
  font-size: min(3.4vw, 6vh);
  font-weight: 400;
  letter-spacing: -0.045em;
  line-height: 1.1;
  margin: 0;
  max-width: 530px;
}

.intro-description {
  font-size: clamp(16px, 1.4vw, 20px);
  line-height: 1.6;
  color: var(--color-gray);
  max-width: 420px;
  margin: 0;
}

.topics {
  border-top: 1px solid var(--color-border);
  padding-top: 20px;
}

.topics-label {
  color: var(--color-gray-soft);
  margin: 0 0 15px;
}

.topic-list {
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.topic {
  font-size: 14px;
  border: 1px solid var(--color-border);
  border-radius: 30px;
  padding: 9px 15px;
}

@media (max-width: 760px) {
  .intro {
    padding: 24px;
    gap: 18px;
  }
  .topics-label {
    display: none;
  }
}

/* Short viewports: trim chrome and decorative labels so the homepage still
   fits without scrolling. Only decoration is dropped — never content. */
@media (max-height: 820px) and (min-width: 761px) {
  .site-shell:has(.home-main) {
    padding: 16px 40px 14px;
    gap: 14px;
  }
  .hero {
    padding: clamp(20px, 2.4vw, 40px);
  }
  .intro {
    padding: clamp(20px, 2.4vw, 40px);
    gap: 14px;
  }
  .hero-mark {
    font-size: 38px;
  }
  .topics {
    padding-top: 12px;
  }
}

@media (max-width: 760px) and (max-height: 900px) {
  .site-shell:has(.home-main) {
    padding: 12px 16px 10px;
    gap: 10px;
  }
  .hero {
    padding: 16px;
  }
  .intro {
    padding: 16px;
    gap: 10px;
  }
  .hero-bottom p {
    font-size: 13px;
    line-height: 1.35;
  }
  .intro-description {
    font-size: 15px;
    line-height: 1.45;
  }
  .intro h2 {
    font-size: min(7vw, 4.4vh);
  }
  .topics {
    padding-top: 10px;
  }
  .topic {
    font-size: 12px;
    padding: 6px 11px;
  }
  .hero-mark {
    font-size: 26px;
  }
}

@media (max-width: 760px) and (max-height: 700px) {
  .intro-top,
  .edition {
    display: none;
  }
  .hero-top .eyebrow {
    font-size: 10px;
  }
  .topic {
    font-size: 11px;
    padding: 5px 9px;
  }
}

/* Collection pages (blog/projects list) ------------------------------------ */
/* flex, not grid: the number of children varies (heading, an optional
   category filter row, then either the empty state or the card grid).
   A fixed `grid-template-rows: auto 1fr` assumes exactly two children,
   so a 1fr row meant for the main content would land on the filter row
   instead whenever it's present, stretching it to fill the page. */
.collection-main {
  display: flex;
  flex-direction: column;
  background: var(--color-offwhite);
  padding: clamp(24px, 4vw, 64px);
  gap: 28px;
  border: 1px solid var(--color-border);
}

.collection-main > .empty-state,
.collection-main > .card-grid {
  flex: 1;
}

.collection-heading {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 30px;
  border-bottom: 1px solid var(--color-border);
  padding-bottom: 30px;
}

.collection-heading .eyebrow {
  color: var(--color-cobalt);
  margin: 0 0 20px;
  display: block;
}

.collection-heading h1 {
  font-size: clamp(46px, 7vw, 100px);
  font-weight: 500;
  line-height: 0.95;
  letter-spacing: -0.06em;
  margin: 0;
}

.collection-summary {
  max-width: 320px;
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-gray);
  margin: 0;
}

@media (max-width: 760px) {
  .collection-heading {
    display: block;
    padding-bottom: 22px;
  }
  .collection-heading h1 {
    font-size: 48px;
  }
}

.empty-state {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: flex-start;
  max-width: 610px;
  gap: 18px;
}

.empty-count {
  font-family: var(--font-serif);
  font-size: clamp(56px, 8vh, 100px);
  line-height: 1;
  color: #c9cde9;
  font-style: italic;
}

.empty-state h2 {
  font-size: clamp(24px, 3vw, 36px);
  line-height: 1.1;
  letter-spacing: -0.03em;
  font-weight: 400;
  margin: 0;
}

.empty-state p {
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-gray);
  max-width: 420px;
  margin: 0;
}

.text-link {
  display: inline-flex;
  gap: 14px;
  align-items: center;
  color: var(--color-cobalt);
  text-decoration: none;
  font-size: 14px;
  border-bottom: 1px solid #b1b9fb;
  padding: 8px 0;
  min-height: 44px;
}

.text-link span {
  transition: transform 260ms var(--ease-out);
}

/* Card grid ---------------------------------------------------------------- */
.card-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  align-content: start;
}

@media (max-width: 1100px) {
  .card-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 700px) {
  .card-grid {
    grid-template-columns: 1fr;
  }
}

.card {
  display: flex;
  flex-direction: column;
  border: 1px solid var(--color-border);
  background: #fff;
  text-decoration: none;
  color: inherit;
  overflow: hidden;
}

.card-cover {
  position: relative;
  aspect-ratio: 16 / 10;
  background: var(--color-nearwhite);
  overflow: hidden;
}

.card-cover img,
.detail-cover img,
.gallery-item img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.card-body {
  padding: 18px 20px 22px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  flex: 1;
}

.card-meta {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--color-gray-soft);
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.card-title {
  font-size: 21px;
  line-height: 1.25;
  letter-spacing: -0.02em;
  margin: 0;
  font-weight: 600;
}

.card-excerpt {
  font-size: 14px;
  line-height: 1.55;
  color: var(--color-gray);
  margin: 0;
  flex: 1;
}

.card-tags {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}

.card-tag {
  font-size: 12px;
  border: 1px solid var(--color-border);
  border-radius: 20px;
  padding: 4px 10px;
  color: var(--color-gray);
}

.card-status {
  font-family: var(--font-mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-cobalt);
}

/* Category filters ----------------------------------------------------------- */
.filter-bar {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.filter-chip {
  font-size: 13px;
  border: 1px solid var(--color-border);
  border-radius: 30px;
  padding: 8px 14px;
  min-height: 36px;
  display: inline-flex;
  align-items: center;
  text-decoration: none;
  color: var(--color-gray);
}

.filter-chip[aria-current='true'] {
  color: #fff;
  background: var(--color-cobalt);
  border-color: var(--color-cobalt);
}

/* Pagination ------------------------------------------------------------------ */
.pagination {
  display: flex;
  gap: 10px;
  align-items: center;
  justify-content: center;
  padding-top: 12px;
  font-family: var(--font-mono);
  font-size: 13px;
}

.pagination a,
.pagination span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 40px;
  min-height: 40px;
  border: 1px solid var(--color-border);
  text-decoration: none;
  color: var(--color-dark);
}

.pagination a[aria-current='page'] {
  background: var(--color-cobalt);
  color: #fff;
  border-color: var(--color-cobalt);
}

.pagination .disabled {
  color: var(--color-border);
  pointer-events: none;
}

/* Detail pages (post/project) -------------------------------------------------- */
.detail-main {
  padding: clamp(24px, 4vw, 64px);
  display: flex;
  flex-direction: column;
  gap: 32px;
  max-width: 1920px;
  margin: auto;
}

.detail-header {
  display: flex;
  flex-direction: column;
  gap: 16px;
  max-width: 840px;
}

.detail-meta {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--color-gray-soft);
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  align-items: center;
}

.detail-title {
  font-size: clamp(34px, 5vw, 64px);
  line-height: 1.05;
  letter-spacing: -0.03em;
  font-weight: 600;
  margin: 0;
}

.detail-excerpt {
  font-size: 18px;
  line-height: 1.6;
  color: var(--color-gray);
  max-width: 65ch;
  margin: 0;
}

.detail-cover {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  background: var(--color-nearwhite);
  overflow: hidden;
}

.detail-body {
  max-width: 70ch;
  font-size: 17px;
  line-height: 1.75;
}

.detail-body h2 {
  font-size: 28px;
  letter-spacing: -0.02em;
  margin: 1.6em 0 0.6em;
}

.detail-body h3 {
  font-size: 22px;
  letter-spacing: -0.015em;
  margin: 1.4em 0 0.5em;
}

.detail-body p {
  margin: 0 0 1.1em;
}

.detail-body ul,
.detail-body ol {
  margin: 0 0 1.1em;
  padding-left: 1.4em;
}

.detail-body blockquote {
  margin: 1.6em 0;
  padding: 0 0 0 1.2em;
  border-left: 3px solid var(--color-cobalt);
  color: var(--color-gray);
  font-family: var(--font-serif);
  font-style: italic;
}

.detail-body img {
  max-width: 100%;
  height: auto;
}

.detail-body a {
  color: var(--color-cobalt);
  text-decoration: underline;
  text-decoration-color: #b1b9fb;
}

.detail-tags {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.section-heading {
  font-size: 26px;
  letter-spacing: -0.02em;
  font-weight: 600;
  margin: 0 0 20px;
}

/* Code blocks -------------------------------------------------------------------- */
.code-block {
  margin: 1.6em 0;
  border: 1px solid var(--color-border);
  background: var(--color-dark);
  border-radius: 4px;
  overflow: hidden;
}

.code-block-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 8px 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: #cfd1d8;
  background: #1f2027;
  border-bottom: 1px solid #2a2b33;
}

.code-block pre {
  margin: 0;
  padding: 16px;
  overflow-x: auto;
  font-family: var(--font-mono);
  font-size: 13.5px;
  line-height: 1.6;
  color: #f2f2f3;
}

.code-copy-button {
  font-family: var(--font-mono);
  font-size: 12px;
  color: #cfd1d8;
  background: transparent;
  border: 1px solid #3a3b45;
  border-radius: 3px;
  padding: 4px 10px;
  min-height: 30px;
  cursor: pointer;
}

.code-copy-button:hover {
  border-color: var(--color-lime);
  color: var(--color-lime);
}

/* Project-specific detail bits ---------------------------------------------------- */
.project-links {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.project-link-button {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 44px;
  padding: 10px 18px;
  border: 1px solid var(--color-cobalt);
  color: var(--color-cobalt);
  text-decoration: none;
  font-size: 14px;
  border-radius: 30px;
}

.project-tech-list {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  list-style: none;
  margin: 0;
  padding: 0;
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

@media (max-width: 700px) {
  .gallery-grid {
    grid-template-columns: 1fr;
  }
}

.gallery-item {
  position: relative;
  aspect-ratio: 4 / 3;
  background: var(--color-nearwhite);
  overflow: hidden;
}

.gallery-caption {
  margin-top: 6px;
  font-size: 13px;
  color: var(--color-gray);
}

/* Preview banner ------------------------------------------------------------------ */
.preview-banner {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  padding: 10px 20px;
  background: var(--color-dark);
  color: var(--color-lime);
  font-family: var(--font-mono);
  font-size: 13px;
}

.preview-banner a {
  color: #fff;
  text-decoration: underline;
}

/* Motion ---------------------------------------------------------------------------- */
@view-transition {
  navigation: auto;
}

@keyframes content-in {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (prefers-reduced-motion: no-preference) {
  html {
    scroll-behavior: smooth;
  }
  .site-header {
    view-transition-name: site-header;
  }
  .site-footer {
    view-transition-name: site-footer;
  }
  .route-main {
    view-transition-name: site-content;
  }
  ::view-transition-old(root),
  ::view-transition-new(root) {
    animation: none;
  }
  ::view-transition-old(site-content) {
    animation: 160ms ease-in both fade-out;
  }
  ::view-transition-new(site-content) {
    animation: 380ms var(--ease-out) both content-in;
  }
  @keyframes fade-out {
    from {
      opacity: 1;
    }
    to {
      opacity: 0;
    }
  }
  .motion-in {
    animation: content-in 550ms var(--ease-out) both;
  }
  .site-nav a::after {
    transition: transform 260ms var(--ease-out);
  }
  .site-nav a {
    transition:
      color 200ms ease,
      transform 200ms var(--ease-out);
  }
  .brand {
    transition:
      color 200ms ease,
      transform 220ms var(--ease-out);
  }
  .text-link,
  .card,
  .filter-chip,
  .project-link-button {
    transition:
      color 200ms ease,
      border-color 200ms ease,
      transform 220ms var(--ease-out);
  }
  .card:active,
  .brand:active,
  .site-nav a:active,
  .text-link:active,
  .filter-chip:active,
  .project-link-button:active,
  .code-copy-button:active {
    transform: scale(0.97);
  }
  .text-link:focus-visible span,
  .text-link:hover span {
    transform: translate(3px, -3px);
  }
  @media (hover: hover) and (pointer: fine) {
    .brand:hover {
      transform: translateY(-2px);
    }
    .site-nav a:hover::after {
      transform: scaleX(1);
    }
    .site-nav a:hover {
      transform: translateY(-1px);
    }
    .card:hover {
      transform: translateY(-3px);
      border-color: var(--color-cobalt);
    }
    .hero:hover .hero-mark {
      rotate: 45deg;
    }
  }
  .hero-mark {
    display: inline-block;
    transition: rotate 550ms var(--ease-out);
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
    scroll-behavior: auto !important;
  }
  ::view-transition-group(*),
  ::view-transition-old(*),
  ::view-transition-new(*) {
    animation: none !important;
  }
}

/* Headings receive focus programmatically on route change (see
   RouteFocusManager). That is a scroll/announce target, not an
   interactive control, so it should not paint a focus ring. */
main h1[tabindex='-1']:focus {
  outline: none;
}

a:focus-visible,
button:focus-visible {
  outline: 3px solid var(--color-cobalt);
  outline-offset: 3px;
  border-radius: 2px;
}