/* =====================================================================
   Rehutai Museum — styles.css
   Guarding the past, for the future.
   ===================================================================== */

:root {
  /* Brand */
  --dark:  #2F3E46;
  --teal:  #84A59D;
  --rust:  #BC6C25;
  --light: #F1F1F1;

  /* Derived, contrast-checked */
  --ink:       #2F3E46;   /* 9.4:1 on --paper */
  --ink-soft:  #44555E;   /* 6.2:1 on --paper */
  --rust-ink:  #9A5415;   /* 4.95:1 on --paper */
  --paper:     #F2EFE8;
  --bar:       #EDE9e0;
  --mat:       #FBFBF9;
  --hairline:  rgba(47, 62, 70, .16);

  --font-display: "Cormorant Garamond", "Iowan Old Style", Georgia, serif;
  --font-body: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;

  --fs-body:  clamp(1rem, .96rem + .2vw, 1.0625rem);
  --fs-h1:    clamp(2.9rem, 1.9rem + 4.4vw, 5.1rem);
  --fs-h2:    clamp(2.2rem, 1.6rem + 2.4vw, 3.3rem);
  --fs-lede:  clamp(1.45rem, 1.2rem + 1.1vw, 2.05rem);

  --shell: 84rem;
  --gutter: clamp(1.5rem, 5vw, 4.5rem);
  --section-y: clamp(4.5rem, 9vw, 8rem);
  --header-h: 6.25rem;

  --ease: cubic-bezier(.22, .61, .36, 1);
  --ease-out: cubic-bezier(.16, 1, .3, 1);
}

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

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h) + 1rem);
}

body {
  margin: 0;
  min-height: 100%;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: var(--fs-body);
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}
body.is-locked { overflow: hidden; }

img, picture, svg { display: block; max-width: 100%; }
img { height: auto; }
h1, h2, p, figure, address { margin: 0; }
ul { margin: 0; padding: 0; list-style: none; }
a { color: inherit; text-decoration: none; }
address { font-style: normal; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }

/* -------------------------- Fern backdrop --------------------------- */
.fern {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  opacity: .045;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  background-size: 160px 160px;
}


/* --------------------------- Accessibility -------------------------- */
:focus-visible { outline: 2px solid var(--rust); outline-offset: 3px; }

.skip-link {
  position: absolute;
  left: 1rem; top: -100px;
  z-index: 200;
  padding: .75rem 1.25rem;
  background: var(--dark);
  color: var(--light);
  font-size: .85rem;
  letter-spacing: .08em;
  text-transform: uppercase;
  transition: top .2s var(--ease);
}
.skip-link:focus { top: 1rem; }

/* ------------------------------ Layout ------------------------------ */
.shell {
  width: 100%;
  max-width: var(--shell);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.section { padding-block: var(--section-y); }

.split {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(2.5rem, 5vw, 4.5rem);
  align-items: center;
}

/* ----------------------------- Typography --------------------------- */
.eyebrow {
  margin-bottom: .75rem;
  font-size: .8rem;
  font-weight: 600;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--ink-soft);
}
.eyebrow--rust { color: var(--rust-ink); letter-spacing: .14em; }

.hero__title {
  font-family: var(--font-display);
  font-size: var(--fs-h1);
  font-weight: 400;
  line-height: 1.02;
  letter-spacing: -.005em;
  color: var(--ink);
}

.hero__lede {
  margin-top: 1.1rem;
  font-family: var(--font-display);
  font-size: var(--fs-lede);
  font-weight: 400;
  line-height: 1.25;
  color: var(--ink);
}

.tagline {
  margin-top: 2rem;
  padding-left: 1.1rem;
  border-left: 3px solid var(--rust);
  font-family: var(--font-display);
  font-style: italic;
  font-size: clamp(1.15rem, 1rem + .7vw, 1.5rem);
  line-height: 1.4;
  color: var(--ink);
}

.section__title {
  font-family: var(--font-display);
  font-size: var(--fs-h2);
  font-weight: 400;
  line-height: 1.05;
  color: var(--ink);
}

.section__title + p { margin-top: 1.9rem; }
.split__text p + p { margin-top: 1.5rem; }
.split__text > p { color: var(--ink-soft); max-width: 40rem; }

/* ------------------------------ Header ------------------------------ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--bar);
  border-bottom: 1px solid rgba(47, 62, 70, .08);
  transition: box-shadow .4s var(--ease);
}
.site-header.is-stuck { box-shadow: 0 10px 30px -24px rgba(47, 62, 70, .8); }

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  min-height: var(--header-h);
}

.wordmark {
  font-family: var(--font-display);
  font-size: clamp(1.3rem, 1.1rem + .7vw, 1.75rem);
  font-weight: 500;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--ink);
  transition: color .3s var(--ease);
}
.wordmark:hover { color: var(--rust-ink); }

.nav__list { display: flex; align-items: center; gap: clamp(1.75rem, 3vw, 3rem); }

.nav__link {
  position: relative;
  display: inline-block;
  padding: .4rem 0;
  font-size: .82rem;
  font-weight: 500;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--ink);
}
.nav__link::after {
  content: "";
  position: absolute;
  left: 0; bottom: 0;
  width: 100%;
  height: 1px;
  background: var(--rust);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform .4s var(--ease-out);
}
.nav__link:hover::after,
.nav__link:focus-visible::after,
.nav__link.is-active::after { transform: scaleX(1); transform-origin: left; }

.nav-toggle {
  display: none;
  width: 3rem; height: 3rem;
  align-items: center;
  justify-content: center;
  margin-right: -.75rem;
  color: var(--ink);
}
.nav-toggle__bars { display: block; width: 26px; height: 12px; position: relative; }
.nav-toggle__bars span {
  position: absolute;
  left: 0;
  width: 100%;
  height: 1.5px;
  background: currentColor;
  transition: transform .4s var(--ease-out);
}
.nav-toggle__bars span:first-child { top: 0; }
.nav-toggle__bars span:last-child { bottom: 0; }
.nav-toggle[aria-expanded="true"] .nav-toggle__bars span:first-child { transform: translateY(5px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle__bars span:last-child { transform: translateY(-5px) rotate(-45deg); }

/* ------------------------------- Hero ------------------------------- */
.hero {
  padding-block: clamp(3.5rem, 8vw, 7rem);
}

/* --------------------------- Framed images -------------------------- */
.frame {
  position: relative;
  padding: clamp(.65rem, 1.2vw, 1.1rem);
  background: var(--mat);
  box-shadow:
    0 1px 0 rgba(47, 62, 70, .07),
    0 30px 60px -38px rgba(47, 62, 70, .55);
}
.frame picture { display: block; overflow: hidden; background: var(--dark); }
.frame img {
  width: 100%;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  transition: transform 1.2s var(--ease-out), filter .6s var(--ease);
}
.frame:hover img { transform: scale(1.045); filter: saturate(1.06); }

.frame--square img { aspect-ratio: 1 / 1; }

/* teal offset rule, top-right */
.frame--outlined::before {
  content: "";
  position: absolute;
  top: -1.5rem; right: -1.5rem;
  width: 42%;
  height: 58%;
  border-top: 1px solid var(--teal);
  border-right: 1px solid var(--teal);
  pointer-events: none;
}

/* --------------------------- Heritage band -------------------------- */
.band {
  position: relative;
  height: clamp(40rem, 42vw, 34rem);   /* was clamp(9rem, 20vw, 15.5rem) */
  overflow: hidden;
  background: var(--dark);
}
.band__media { position: absolute; inset: -10% 0; will-change: transform; }
.band__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 65%;   /* pulls the building down into frame */
}


/* ------------------------------ Contact ----------------------------- */
.details {
  margin-top: 2rem;
  line-height: 1.9;
  color: var(--ink-soft);
}
.details strong { color: var(--ink); font-weight: 600; }
.details a {
  border-bottom: 1px solid transparent;
  transition: color .3s var(--ease), border-color .3s var(--ease);
}
.details a:hover, .details a:focus-visible { color: var(--rust-ink); border-color: currentColor; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-top: 2.25rem;
  padding: 1rem 2.1rem;
  min-height: 3.25rem;
  font-size: .78rem;
  font-weight: 500;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--ink);
  border: 1px solid var(--ink);
  position: relative;
  overflow: hidden;
  isolation: isolate;
  transition: color .4s var(--ease), border-color .4s var(--ease);
}
.btn::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background: var(--rust);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform .5s var(--ease-out);
}
.btn:hover, .btn:focus-visible { color: #fff; border-color: var(--rust); }
.btn:hover::after, .btn:focus-visible::after { transform: scaleX(1); transform-origin: left; }

/* ------------------------------ Footer ------------------------------ */
.site-footer {
  background: var(--dark);
  color: var(--light);
  padding-block: clamp(2.25rem, 4vw, 3.25rem);
}
.footer__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem 2.5rem;
}
.footer__name {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 1.2rem + 1vw, 2rem);
  line-height: 1.15;
}
.footer__meta {
  margin-top: .45rem;
  font-size: .72rem;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: #A9C3BC;
}
.footer__frond { width: 3.5rem; height: auto; color: var(--teal); opacity: .9; }
.footer__site {
  font-size: .78rem;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: #E8C9A8;
  border-bottom: 1px solid transparent;
  transition: border-color .3s var(--ease);
}
.footer__site:hover, .footer__site:focus-visible { border-color: currentColor; }

/* --------------------------- Reveal system --------------------------- */
[data-reveal] {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity .85s var(--ease-out), transform .85s var(--ease-out);
  transition-delay: calc(var(--d, 0) * 100ms);
}
[data-reveal].is-visible { opacity: 1; transform: none; }

/* ---------------------------- Breakpoints ---------------------------- */
@media (min-width: 60em) {
  .split { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: clamp(3rem, 6vw, 6rem); }
  .split--wide-text { grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr); }
  .hero .split__text { padding-right: 2rem; }
}

@media (max-width: 59.99em) {
  .nav-toggle { display: inline-flex; }

  .nav {
    position: fixed;
    inset: 0;
    z-index: 90;
    display: grid;
    place-items: center;
    background: var(--bar);
    opacity: 0;
    visibility: hidden;
    transition: opacity .35s var(--ease), visibility .35s;
  }
  .nav.is-open { opacity: 1; visibility: visible; }
  .nav__list { flex-direction: column; gap: 2.25rem; }
  .nav__link {
    font-family: var(--font-display);
    font-size: 1.9rem;
    font-weight: 400;
    letter-spacing: .04em;
    text-transform: none;
  }

  .frame--outlined::before { top: -1rem; right: -1rem; }
  .hero { padding-block: clamp(2.5rem, 7vw, 4rem); }
}

/* --------------------------- Preferences ---------------------------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: .001ms !important;
    transition-duration: .001ms !important;
  }
  [data-reveal] { opacity: 1; transform: none; }
  .band__media { transform: none !important; }
}

@media (prefers-contrast: more) {
  :root { --ink-soft: #2F3E46; --hairline: rgba(47, 62, 70, .45); }
  .fern { opacity: .1; }
}

@media print {
  .fern, .site-header, .band, .btn { display: none !important; }
  body { background: #fff; color: #000; }
  .site-footer { background: #fff !important; color: #000 !important; }
  .frame { box-shadow: none; border: 1px solid #ccc; }
}