/* ==========================================================================
   Lukera — global styles
   One stylesheet for the whole site. Tokens first, then base, layout,
   components and page sections.
   ========================================================================== */

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

:root {
  --bg: #f6f5f1;
  --bg-raised: #efede7;
  --text: #151514;
  --muted: #53524c;
  --subtle: #6c6a63;
  --line: #dcd9d0;
  --line-strong: #c4c0b5;
  --accent: #99461a;
  --focus: #99461a;

  --font-sans: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont,
    "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: ui-monospace, "SF Mono", SFMono-Regular, Menlo, Consolas,
    "Liberation Mono", monospace;

  --max-width: 1160px;
  --gutter: clamp(1.25rem, 4vw, 2.5rem);
  --section-space: clamp(4.5rem, 3rem + 6vw, 8rem);
  --radius: 6px;

  color-scheme: light dark;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #121211;
    --bg-raised: #1a1a18;
    --text: #ecebe6;
    --muted: #b0aea6;
    --subtle: #95938b;
    --line: #2b2b28;
    --line-strong: #3d3c38;
    --accent: #e0935f;
    --focus: #e0935f;
  }
}

/* Base -------------------------------------------------------------------- */

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

html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 1.0625rem;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  min-height: 100svh;
}

main {
  flex: 1;
}

h1,
h2,
h3 {
  margin: 0;
  font-weight: 600;
  line-height: 1.15;
  letter-spacing: -0.02em;
  text-wrap: balance;
}

p {
  margin: 0;
  text-wrap: pretty;
}

p + p {
  margin-top: 1em;
}

a {
  color: inherit;
  text-decoration-thickness: 1px;
  text-underline-offset: 0.2em;
}

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

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

::selection {
  background: var(--text);
  color: var(--bg);
}

/* Layout ------------------------------------------------------------------ */

.container {
  width: 100%;
  max-width: calc(var(--max-width) + var(--gutter) * 2);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: absolute;
  top: 0.75rem;
  left: 0.75rem;
  z-index: 10;
  padding: 0.75rem 1rem;
  background: var(--text);
  color: var(--bg);
  border-radius: var(--radius);
  font-weight: 600;
  text-decoration: none;
  transform: translateY(-200%);
}

.skip-link:focus {
  transform: none;
}

/* Header ------------------------------------------------------------------ */

.site-header {
  border-bottom: 1px solid var(--line);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 4.5rem;
}

.wordmark {
  display: inline-flex;
  align-items: center;
  gap: 0.625rem;
  min-height: 44px;
  font-size: 1.1875rem;
  font-weight: 650;
  letter-spacing: -0.025em;
  text-decoration: none;
}

.wordmark svg {
  width: 1.625rem;
  height: 1.625rem;
  flex: none;
}

.mark-bg {
  fill: var(--text);
}

.mark-fg {
  fill: var(--bg);
}

.site-nav ul {
  display: flex;
  gap: 0.25rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.site-nav a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding-inline: 0.75rem;
  color: var(--muted);
  font-size: 0.9688rem;
  text-decoration: none;
}

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

.site-nav a[aria-current="page"] {
  text-decoration: underline;
  text-decoration-color: var(--line-strong);
  text-underline-offset: 0.45em;
}

.site-nav li:last-child a {
  margin-right: -0.75rem;
}

/* Typography helpers ------------------------------------------------------ */

.eyebrow {
  display: block;
  margin-bottom: 1.25rem;
  color: var(--subtle);
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  font-weight: 400;
  letter-spacing: 0.02em;
}

.display {
  max-width: 14ch;
  font-size: clamp(2.625rem, 1.5rem + 4.6vw, 5.25rem);
  line-height: 1.02;
  letter-spacing: -0.04em;
}

.page-title {
  max-width: 16ch;
  font-size: clamp(2.375rem, 1.5rem + 3.4vw, 4.25rem);
  line-height: 1.04;
  letter-spacing: -0.035em;
}

.lede {
  max-width: 38rem;
  margin-top: 1.75rem;
  color: var(--muted);
  font-size: clamp(1.125rem, 1rem + 0.45vw, 1.3125rem);
  line-height: 1.55;
}

.section-title {
  font-size: clamp(1.625rem, 1.3rem + 1.1vw, 2.125rem);
  letter-spacing: -0.03em;
}

/* Buttons and links ------------------------------------------------------- */

.actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem 1.75rem;
  margin-top: 2.5rem;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0.75rem 1.375rem;
  border: 1px solid var(--text);
  border-radius: var(--radius);
  background: var(--text);
  color: var(--bg);
  font-size: 1rem;
  font-weight: 600;
  text-decoration: none;
  transition: opacity 150ms ease;
}

.button:hover {
  opacity: 0.86;
}

.text-link {
  display: inline-flex;
  align-items: center;
  gap: 0.4em;
  min-height: 44px;
  font-weight: 500;
  text-decoration: none;
}

.text-link span[aria-hidden] {
  transition: transform 150ms ease;
}

.text-link:hover {
  text-decoration: underline;
  text-decoration-color: var(--accent);
}

.text-link:hover span[aria-hidden] {
  transform: translateX(3px);
}

/* Sections ---------------------------------------------------------------- */

.hero {
  padding-block: clamp(4.5rem, 2rem + 9vw, 10rem) clamp(4rem, 2rem + 6vw, 7.5rem);
}

.page-intro {
  padding-block: clamp(4rem, 2rem + 7vw, 8rem) clamp(3rem, 2rem + 4vw, 5rem);
}

.section {
  padding-block: var(--section-space);
  border-top: 1px solid var(--line);
}

/* Heading column on the left, content on the right at wide sizes. */
.split {
  display: grid;
  gap: 2rem 3rem;
}

.split-intro p {
  max-width: 24rem;
  margin-top: 1rem;
  color: var(--muted);
}

@media (min-width: 60rem) {
  .split {
    grid-template-columns: minmax(0, 4fr) minmax(0, 8fr);
  }
}

/* Areas: "What we build" */
.areas {
  display: grid;
  gap: 0;
  margin: 0;
  padding: 0;
  list-style: none;
}

.areas li {
  padding-block: 1.75rem;
  border-top: 1px solid var(--line);
}

.areas li:first-child {
  padding-top: 0;
  border-top: 0;
}

.areas h3,
.principles h3 {
  font-size: 1.1875rem;
  letter-spacing: -0.015em;
}

.areas p,
.principles p {
  max-width: 34rem;
  margin-top: 0.5rem;
  color: var(--muted);
}

@media (min-width: 44rem) {
  .areas {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 2.5rem;
  }

  .areas li,
  .areas li:first-child {
    padding: 1.5rem 0 0;
    border-top: 1px solid var(--line-strong);
  }
}

/* Principles */
.principles {
  display: grid;
  gap: 0;
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: principle;
}

.principles li {
  display: grid;
  grid-template-columns: 2.75rem minmax(0, 1fr);
  padding-block: 1.75rem;
  border-top: 1px solid var(--line);
  counter-increment: principle;
}

.principles li:first-child {
  padding-top: 0;
  border-top: 0;
}

.principles li::before {
  content: counter(principle, decimal-leading-zero);
  padding-top: 0.2rem;
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 0.8125rem;
}

@media (min-width: 44rem) {
  .principles {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: 3rem;
  }

  .principles li:nth-child(2) {
    padding-top: 0;
    border-top: 0;
  }
}

/* Statement */
.statement p {
  max-width: 22em;
  font-size: clamp(1.5rem, 1.1rem + 1.7vw, 2.375rem);
  font-weight: 500;
  line-height: 1.25;
  letter-spacing: -0.025em;
  text-wrap: balance;
}

.statement .muted {
  color: var(--subtle);
}

/* Closing call to action */
.cta {
  padding-block: var(--section-space);
  border-top: 1px solid var(--line);
}

.cta-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 2rem;
}

.cta h2 {
  max-width: 14ch;
  font-size: clamp(2rem, 1.4rem + 2.6vw, 3.25rem);
  line-height: 1.06;
  letter-spacing: -0.035em;
}

.cta .actions {
  margin-top: 0;
}

/* Prose (About, Privacy) -------------------------------------------------- */

.prose {
  max-width: 42rem;
}

.prose p,
.prose li {
  color: var(--muted);
}

.prose strong {
  color: var(--text);
  font-weight: 600;
}

.prose ul {
  margin: 1em 0 0;
  padding-left: 1.25rem;
}

.prose li + li {
  margin-top: 0.5em;
}

.prose h2 {
  font-size: 1.375rem;
  letter-spacing: -0.02em;
}

.prose h2:not(:first-child) {
  margin-top: 2.75rem;
}

.prose h2 + p,
.prose h2 + ul {
  margin-top: 0.75rem;
}

.meta {
  margin-top: 1.5rem;
  color: var(--subtle);
  font-family: var(--font-mono);
  font-size: 0.8125rem;
}

/* Focus list on the About page */
.focus-list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.focus-list li {
  display: grid;
  gap: 0.25rem 2rem;
  padding-block: 1.25rem;
  border-top: 1px solid var(--line);
}

.focus-list li:first-child {
  padding-top: 0;
  border-top: 0;
}

.focus-list h3 {
  font-size: 1.0625rem;
  letter-spacing: -0.01em;
}

.focus-list p {
  color: var(--muted);
}

@media (min-width: 44rem) {
  .focus-list li {
    grid-template-columns: 13rem minmax(0, 1fr);
  }
}

/* Contact ----------------------------------------------------------------- */

.email-link {
  display: inline-block;
  margin-top: 1rem;
  font-size: clamp(1.75rem, 1rem + 3.4vw, 3.5rem);
  font-weight: 600;
  line-height: 1.15;
  letter-spacing: -0.035em;
  overflow-wrap: anywhere;
  text-decoration: underline;
  text-decoration-color: var(--line-strong);
  text-decoration-thickness: 2px;
  text-underline-offset: 0.18em;
}

.email-link:hover {
  text-decoration-color: var(--accent);
}

.details {
  display: grid;
  gap: 1.5rem 3rem;
  margin: 0;
}

.details div {
  padding-top: 1.25rem;
  border-top: 1px solid var(--line-strong);
}

.details dt {
  color: var(--subtle);
  font-family: var(--font-mono);
  font-size: 0.8125rem;
}

.details dd {
  margin: 0.5rem 0 0;
  color: var(--muted);
}

@media (min-width: 44rem) {
  .details {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

/* Footer ------------------------------------------------------------------ */

.site-footer {
  padding-block: 2.5rem;
  border-top: 1px solid var(--line);
  color: var(--subtle);
  font-size: 0.9375rem;
}

.site-footer .container {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem 2rem;
}

.site-footer p {
  margin: 0;
}

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

.site-footer a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  text-decoration: none;
}

.site-footer a:hover {
  color: var(--text);
  text-decoration: underline;
}

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

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
  }
}