/* ==========================================================================
   Reset, typography, and site-wide chrome (header / nav / footer / buttons).
   Loaded on every page, before components.css.
   ========================================================================== */

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

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

body,
h1,
h2,
h3,
h4,
p,
figure,
blockquote,
ul,
ol {
  margin: 0;
}

ul,
ol {
  padding: 0;
  list-style: none;
}

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

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

button {
  font: inherit;
  color: inherit;
  background: none;
  border: 0;
  cursor: pointer;
}

input,
textarea,
select {
  font: inherit;
  color: inherit;
}

/* ---- Base type ------------------------------------------------------------ */
body {
  background: var(--color-bg);
  color: var(--color-ink);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

h1,
h2,
h3,
h4 {
  font-family: var(--font-serif);
  font-weight: 500;
  line-height: 1.2;
  letter-spacing: 0.01em;
}

h1 {
  font-size: clamp(2rem, 3.4vw, 2.9rem);
}

h2 {
  font-size: clamp(1.5rem, 2.4vw, 2rem);
}

h3 {
  font-size: 1.15rem;
}

p {
  color: var(--color-ink-soft);
}

.eyebrow {
  display: block;
  font-family: var(--font-sans);
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-ink-soft);
  margin-bottom: var(--space-2xs);
}

.lede {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 1.15rem;
  color: var(--color-ink-soft);
  max-width: 46ch;
}

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

/* ---- Layout helpers -------------------------------------------------------- */
.container {
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-pad);
}

.container--narrow {
  max-width: 640px;
}

.page-intro {
  padding-block: var(--space-xl) var(--space-lg);
  text-align: center;
}

.page-intro h1 {
  margin-bottom: var(--space-sm);
}

.page-intro .lede {
  margin-inline: auto;
}

.skip-link {
  position: absolute;
  top: -48px;
  left: var(--space-sm);
  background: var(--color-ink);
  color: #fff;
  padding: var(--space-2xs) var(--space-sm);
  z-index: 200;
  transition: top var(--transition-fast);
}

.skip-link:focus {
  top: var(--space-2xs);
}

/* ---- Buttons ---------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5em;
  padding: 0.9em 2em;
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  border: 1px solid var(--color-ink);
  color: var(--color-ink);
  background: transparent;
  transition: background-color var(--transition-fast), color var(--transition-fast);
}

.btn:hover,
.btn:focus-visible {
  background: var(--color-ink);
  color: #fff;
}

.btn--quiet {
  border-color: var(--color-border-strong);
}

.btn--quiet:hover,
.btn--quiet:focus-visible {
  background: var(--color-ink);
  border-color: var(--color-ink);
}

/* ==========================================================================
   Header
   ========================================================================== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--color-bg);
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition-fast);
}

.site-header[data-scrolled] {
  border-bottom-color: var(--color-border);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: var(--header-height);
  gap: var(--space-md);
  transition: min-height var(--transition-slow);
}

.site-header[data-scrolled] .site-header__inner {
  min-height: 64px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  flex-shrink: 0;
}

.brand__mark {
  width: 72px;
  height: 72px;
  object-fit: contain;
  transition: width var(--transition-slow), height var(--transition-slow);
}

.site-header[data-scrolled] .brand__mark {
  width: 44px;
  height: 44px;
}

.brand__word {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.site-nav ul {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: var(--space-sm) 1.6rem;
}

.site-nav a {
  font-size: 0.74rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding-block: 0.4rem;
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition-fast), color var(--transition-fast);
  white-space: nowrap;
}

.site-nav a:hover,
.site-nav a:focus-visible {
  border-bottom-color: var(--color-ink);
}

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

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 0.5rem;
  z-index: 110;
}

.nav-toggle__box {
  display: block;
  width: 22px;
  height: 14px;
  position: relative;
}

.nav-toggle__box span,
.nav-toggle__box::before,
.nav-toggle__box::after {
  content: "";
  position: absolute;
  left: 0;
  width: 100%;
  height: 1px;
  background: var(--color-ink);
  transition: transform var(--transition-fast), opacity var(--transition-fast), top var(--transition-fast);
}

.nav-toggle__box::before {
  top: 0;
}

.nav-toggle__box span {
  top: 6.5px;
}

.nav-toggle__box::after {
  top: 13px;
}

.nav-toggle[aria-expanded="true"] .nav-toggle__box::before {
  top: 6.5px;
  transform: rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .nav-toggle__box::after {
  top: 6.5px;
  transform: rotate(-45deg);
}

.nav-toggle[aria-expanded="true"] .nav-toggle__box span {
  opacity: 0;
}

@media (max-width: 900px) {
  .nav-toggle {
    display: flex;
  }

  .site-nav {
    position: fixed;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-bg);
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-slow);
    z-index: 105;
  }

  .site-nav[data-open] {
    opacity: 1;
    visibility: visible;
  }

  .site-nav ul {
    flex-direction: column;
    align-items: center;
    gap: var(--space-md);
  }

  .site-nav a {
    font-size: 0.95rem;
  }
}

/* ==========================================================================
   Footer
   ========================================================================== */
.site-footer {
  background: var(--color-footer-bg);
  border-top: var(--border-hairline);
  margin-top: var(--space-sm);
}

.site-footer__grid {
  display: grid;
  grid-template-columns: 1.1fr 0.8fr 0.8fr 1fr;
  gap: var(--space-md);
  padding-block: var(--space-md);
}

.site-footer__nav--explore {
  grid-column: span 2;
}

.site-footer__nav-cols {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-md);
}

.site-footer__brand .brand__word {
  font-size: 1.1rem;
}

.site-footer__brand p {
  margin-top: var(--space-2xs);
  font-size: 0.9rem;
  max-width: 32ch;
}

.site-footer h4 {
  font-family: var(--font-sans);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-ink-soft);
  margin-bottom: var(--space-xs);
}

.site-footer__nav ul,
.site-footer__contact address {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
  font-style: normal;
}

.site-footer__nav a,
.site-footer__contact a {
  font-size: 0.9rem;
  color: var(--color-ink-soft);
  transition: color var(--transition-fast);
}

.site-footer__nav a:hover,
.site-footer__contact a:hover {
  color: var(--color-ink);
}

.site-footer__contact p {
  font-size: 0.9rem;
}

.site-footer__socials {
  display: flex;
  gap: 0.9rem;
  margin-top: var(--space-xs);
}

.site-footer__socials a {
  width: 34px;
  height: 34px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--color-border-strong);
  border-radius: 50%;
  transition: background-color var(--transition-fast), border-color var(--transition-fast);
}

.site-footer__socials a:hover {
  background: var(--color-ink);
  border-color: var(--color-ink);
}

.site-footer__socials a:hover svg {
  stroke: #fff;
}

.site-footer__socials svg {
  width: 15px;
  height: 15px;
  stroke: var(--color-ink);
  transition: stroke var(--transition-fast);
}

.site-footer__bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-2xs) var(--space-sm);
  border-top: var(--border-hairline);
  padding-block: var(--space-xs);
  font-size: 0.78rem;
  color: var(--color-ink-soft);
}

.site-footer__credit {
  color: var(--color-ink-soft);
}

@media (max-width: 760px) {
  .site-footer__grid {
    grid-template-columns: 1fr;
    gap: var(--space-md);
  }
}

@media (max-width: 480px) {
  .site-footer__nav-cols {
    grid-template-columns: 1fr;
    gap: var(--space-xs);
  }
}