/* =====================================================================
   The Halden Museum of Art — site stylesheet
   Designed for restraint: warm paper, deep ink, brass accent.
   --------------------------------------------------------------------- */

/* ---------- Tokens ------------------------------------------------- */
:root {
  /* Color */
  --paper:        #f6f2ea;
  --paper-warm:   #efe9dc;
  --paper-deep:   #e6dec9;
  --ink:          #1a1815;
  --ink-soft:     #2a2823;
  --muted:        #6b6356;
  --muted-soft:   #8a8174;
  --rule:         #d8d0bd;
  --rule-soft:    #e3dccb;
  --brass:        #8a6a2c;
  --brass-deep:   #6c5121;
  --signal:       #6a3322;

  /* Type */
  --serif: "Cormorant Garamond", "EB Garamond", "Hoefler Text", Georgia, serif;
  --sans:  "Inter", "Söhne", -apple-system, BlinkMacSystemFont, "Helvetica Neue", Arial, sans-serif;
  --mono:  "IBM Plex Mono", ui-monospace, "SF Mono", Menlo, monospace;

  /* Scale */
  --step--1: clamp(0.78rem, 0.74rem + 0.18vw, 0.86rem);
  --step-0:  clamp(0.95rem, 0.90rem + 0.22vw, 1.05rem);
  --step-1:  clamp(1.10rem, 1.02rem + 0.40vw, 1.28rem);
  --step-2:  clamp(1.32rem, 1.18rem + 0.70vw, 1.60rem);
  --step-3:  clamp(1.65rem, 1.40rem + 1.20vw, 2.15rem);
  --step-4:  clamp(2.10rem, 1.65rem + 2.10vw, 3.10rem);
  --step-5:  clamp(2.80rem, 2.00rem + 3.80vw, 4.80rem);
  --step-6:  clamp(3.40rem, 2.20rem + 5.50vw, 6.40rem);

  /* Layout */
  --col-max:  1280px;
  --col-text: 64ch;
  --col-narrow: 720px;
  --gutter: clamp(1.25rem, 4vw, 3rem);
  --section-y: clamp(3.5rem, 6vw, 6.5rem);
  --radius: 0;

  /* Transitions */
  --t-fast: 180ms ease;
  --t-slow: 400ms ease;
}

/* ---------- Reset & base ------------------------------------------ */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: var(--step-0);
  line-height: 1.6;
  font-feature-settings: "ss01", "ss02", "kern", "liga";
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}
img, svg { display: block; max-width: 100%; }
a { color: var(--ink); text-decoration: none; transition: color var(--t-fast); }
a:hover, a:focus-visible { color: var(--brass-deep); }
a:focus-visible { outline: 2px solid var(--brass); outline-offset: 3px; }

h1, h2, h3, h4 {
  font-family: var(--serif);
  font-weight: 500;
  color: var(--ink);
  margin: 0 0 0.5em;
  letter-spacing: -0.005em;
  line-height: 1.1;
}
h1 { font-size: var(--step-5); font-weight: 400; letter-spacing: -0.015em; }
h2 { font-size: var(--step-4); font-weight: 400; }
h3 { font-size: var(--step-2); }
h4 { font-size: var(--step-1); font-style: italic; font-weight: 400; }

p { margin: 0 0 1em; }
p:last-child { margin-bottom: 0; }

/* Elegant utility lockups */
.eyebrow {
  font-family: var(--sans);
  font-size: 0.72rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  font-weight: 500;
  color: var(--muted);
  display: inline-block;
}
.brand-rule {
  display: inline-block;
  width: 2.5rem;
  height: 1px;
  background: var(--brass);
  vertical-align: middle;
  margin: 0 0.75rem;
}
.lede {
  font-family: var(--serif);
  font-size: var(--step-2);
  line-height: 1.4;
  color: var(--ink-soft);
  font-weight: 400;
  font-style: italic;
}

/* ---------- Layout helpers ---------------------------------------- */
.wrap   { max-width: var(--col-max);    margin: 0 auto; padding: 0 var(--gutter); }
.wrap--narrow { max-width: var(--col-narrow); margin: 0 auto; padding: 0 var(--gutter); }
.section { padding: var(--section-y) 0; }
.section--tight { padding: clamp(2.2rem, 4vw, 3.6rem) 0; }
.rule { border: 0; border-top: 1px solid var(--rule); margin: 0; }

.cols-2 { display: grid; gap: clamp(1.5rem, 4vw, 3.5rem); grid-template-columns: 1fr; }
@media (min-width: 760px) { .cols-2 { grid-template-columns: 1fr 1fr; } }
.cols-3 { display: grid; gap: clamp(1.5rem, 3vw, 2.5rem); grid-template-columns: 1fr; }
@media (min-width: 720px) { .cols-3 { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1024px){ .cols-3 { grid-template-columns: repeat(3, 1fr); } }

.split {
  display: grid;
  gap: clamp(2rem, 5vw, 4.5rem);
  grid-template-columns: 1fr;
  align-items: start;
}
@media (min-width: 880px) { .split { grid-template-columns: 5fr 7fr; } }
@media (min-width: 880px) { .split--flip { grid-template-columns: 7fr 5fr; } }

/* ---------- Header / nav ------------------------------------------ */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: color-mix(in srgb, var(--paper) 92%, transparent);
  backdrop-filter: saturate(140%) blur(8px);
  -webkit-backdrop-filter: saturate(140%) blur(8px);
  border-bottom: 1px solid var(--rule);
}
.site-header__inner {
  display: flex; align-items: baseline; justify-content: space-between;
  gap: 2rem;
  padding: 1.1rem var(--gutter);
  max-width: var(--col-max); margin: 0 auto;
}
.brand {
  font-family: var(--serif);
  font-size: 1.22rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  font-weight: 500;
  line-height: 1;
  color: var(--ink);
}
.brand small {
  display: block;
  font-family: var(--sans);
  font-size: 0.62rem;
  letter-spacing: 0.32em;
  color: var(--muted);
  margin-top: 0.35rem;
  font-weight: 500;
}
.nav { display: flex; gap: 1.6rem; align-items: center; }
.nav a {
  font-family: var(--sans);
  font-size: 0.78rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  font-weight: 500;
  color: var(--ink-soft);
  padding: 0.25rem 0;
  border-bottom: 1px solid transparent;
}
.nav a:hover, .nav a.is-active {
  color: var(--ink);
  border-bottom-color: var(--brass);
}
.nav__cta {
  font-family: var(--sans);
  font-size: 0.78rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  padding: 0.55rem 1.1rem;
  border: 1px solid var(--ink);
  color: var(--ink);
  transition: background var(--t-fast), color var(--t-fast);
}
.nav__cta:hover { background: var(--ink); color: var(--paper); }

.nav__toggle {
  display: none;
  background: transparent; border: 0;
  font-family: var(--sans); font-size: 0.78rem;
  letter-spacing: 0.18em; text-transform: uppercase;
  color: var(--ink); cursor: pointer; padding: 0.4rem 0;
}
@media (max-width: 820px) {
  .nav__toggle { display: inline-block; }
  .nav {
    position: absolute; left: 0; right: 0; top: 100%;
    background: var(--paper); border-bottom: 1px solid var(--rule);
    flex-direction: column; align-items: stretch; gap: 0;
    padding: 0.5rem var(--gutter) 1.25rem;
    display: none;
  }
  .nav.is-open { display: flex; }
  .nav a { padding: 0.85rem 0; border-bottom: 1px solid var(--rule-soft); }
  .nav__cta { margin-top: 0.75rem; text-align: center; }
}

/* ---------- Buttons / links --------------------------------------- */
.btn {
  display: inline-block;
  font-family: var(--sans);
  font-size: 0.78rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  font-weight: 500;
  padding: 0.85rem 1.5rem;
  border: 1px solid var(--ink);
  color: var(--ink);
  background: transparent;
  transition: background var(--t-fast), color var(--t-fast), border-color var(--t-fast);
  cursor: pointer;
}
.btn:hover { background: var(--ink); color: var(--paper); }
.btn--solid { background: var(--ink); color: var(--paper); }
.btn--solid:hover { background: var(--brass-deep); border-color: var(--brass-deep); color: var(--paper); }
.btn--ghost { border-color: var(--rule); color: var(--ink-soft); }
.btn--ghost:hover { background: transparent; color: var(--ink); border-color: var(--ink); }

.link-arrow {
  font-family: var(--sans);
  font-size: 0.82rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  border-bottom: 1px solid var(--brass);
  padding-bottom: 0.15rem;
  color: var(--ink);
}
.link-arrow::after { content: " →"; color: var(--brass); transition: transform var(--t-fast); display: inline-block; }
.link-arrow:hover::after { transform: translateX(3px); }

/* ---------- Image placeholders ------------------------------------ */
/* A clean "plate" — looks intentional whether or not a real image is dropped in. */
.plate {
  position: relative;
  display: block;
  width: 100%;
  background:
    linear-gradient(135deg, var(--paper-deep) 0%, var(--paper-warm) 60%, var(--paper-deep) 100%);
  border: 1px solid var(--rule);
  overflow: hidden;
  isolation: isolate;
}
.plate::before {
  /* Subtle paper texture via layered radial gradients */
  content: "";
  position: absolute; inset: 0;
  background:
    radial-gradient(1200px 600px at 18% 12%, rgba(255,255,255,0.55), transparent 60%),
    radial-gradient(900px 600px at 82% 88%, rgba(0,0,0,0.06), transparent 55%);
  z-index: 0;
}
.plate::after {
  /* Catalogue mark, top-right */
  content: attr(data-mark);
  position: absolute;
  top: 1rem; right: 1rem;
  font-family: var(--mono);
  font-size: 0.66rem;
  letter-spacing: 0.18em;
  color: var(--muted);
  background: rgba(246, 242, 234, 0.7);
  padding: 0.25rem 0.55rem;
  border: 1px solid var(--rule);
  z-index: 2;
}
.plate__label {
  position: absolute; left: 1rem; bottom: 1rem;
  font-family: var(--serif);
  font-style: italic;
  font-size: 0.92rem;
  color: var(--muted);
  z-index: 2;
}
.plate--3x2  { aspect-ratio: 3 / 2; }
.plate--4x5  { aspect-ratio: 4 / 5; }
.plate--1x1  { aspect-ratio: 1 / 1; }
.plate--16x9 { aspect-ratio: 16 / 9; }
.plate--21x9 { aspect-ratio: 21 / 9; }
.plate--portrait { aspect-ratio: 4 / 6; }

/* Real-image plates: the <img> fills the frame, hides the placeholder layers,
   and the catalogue mark stays legible against the photo. */
.plate > img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 1;
  display: block;
}
.plate:has(> img)::before { display: none; }
.plate:has(> img) .plate__label { display: none; }
.plate:has(> img)::after {
  background: rgba(20, 18, 16, 0.78);
  color: #ede5d0;
  border-color: rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(3px);
  -webkit-backdrop-filter: blur(3px);
}
/* Optional: position-tuned object-fit for specific paintings where a center crop
   would lose key composition. Add per-instance via inline style if needed. */
.plate > img.plate__img--top    { object-position: 50% 0%; }
.plate > img.plate__img--bottom { object-position: 50% 100%; }
.plate > img.plate__img--left   { object-position: 0% 50%; }
.plate > img.plate__img--right  { object-position: 100% 50%; }

/* Inner figure + caption */
.figure { margin: 0; }
.figure__cap {
  margin-top: 0.9rem;
  font-family: var(--sans);
  font-size: 0.78rem;
  line-height: 1.55;
  color: var(--muted);
}
.figure__cap b { color: var(--ink); font-weight: 500; }
.figure__cap em { color: var(--ink-soft); font-style: italic; font-family: var(--serif); font-size: 0.92rem; }
.figure__credit {
  display: block;
  margin-top: 0.35rem;
  font-size: 0.7rem;
  color: var(--muted-soft);
  letter-spacing: 0.04em;
}

/* ---------- Cards (exhibits / events) ----------------------------- */
.card { display: block; color: inherit; }
.card .figure__cap { margin-top: 1rem; }
.card__kicker {
  font-family: var(--sans);
  font-size: 0.7rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--brass-deep);
  margin-bottom: 0.4rem;
}
.card__title {
  font-family: var(--serif);
  font-size: var(--step-2);
  font-weight: 500;
  line-height: 1.15;
  margin: 0 0 0.5rem;
}
.card__title em { font-style: italic; font-weight: 400; }
.card__meta { color: var(--muted); font-size: 0.82rem; letter-spacing: 0.04em; }
.card:hover .card__title { color: var(--brass-deep); }
.card:hover .plate { border-color: var(--brass); }

/* ---------- Page hero --------------------------------------------- */
.page-hero {
  padding: clamp(3rem, 8vw, 6.5rem) 0 clamp(2rem, 5vw, 4rem);
  border-bottom: 1px solid var(--rule);
}
.page-hero .eyebrow { margin-bottom: 1.4rem; }
.page-hero h1 { max-width: 22ch; }
.page-hero .lede { margin-top: 1.6rem; max-width: 56ch; }

/* Home hero — generous */
.hero {
  padding: clamp(3rem, 6vw, 5rem) 0 clamp(2rem, 5vw, 4rem);
}
.hero__grid {
  display: grid; gap: clamp(2rem, 5vw, 4rem);
  grid-template-columns: 1fr;
  align-items: end;
}
@media (min-width: 920px) {
  .hero__grid { grid-template-columns: 6fr 6fr; }
}
.hero__title {
  font-size: var(--step-6);
  font-weight: 400;
  letter-spacing: -0.02em;
  line-height: 0.98;
}
.hero__title em { font-style: italic; font-weight: 400; color: var(--ink-soft); }
.hero__sub {
  margin-top: 1.4rem;
  max-width: 36ch;
  color: var(--muted);
  font-size: var(--step-1);
  line-height: 1.55;
}
.hero__meta {
  margin-top: 2rem;
  display: flex; flex-wrap: wrap; gap: 1.2rem;
  align-items: center;
}

/* ---------- Marquee / banner -------------------------------------- */
.banner {
  background: var(--ink);
  color: var(--paper);
  padding: 0.85rem var(--gutter);
  font-family: var(--sans);
  font-size: 0.78rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  text-align: center;
}
.banner a { color: var(--paper); border-bottom: 1px solid var(--brass); padding-bottom: 1px; }
.banner a:hover { color: #fff; }

/* ---------- Tables ------------------------------------------------ */
.spec {
  width: 100%; border-collapse: collapse;
  font-size: 0.92rem;
}
.spec th, .spec td {
  text-align: left; vertical-align: top;
  padding: 0.9rem 0;
  border-bottom: 1px solid var(--rule-soft);
}
.spec th {
  font-weight: 500; color: var(--muted);
  font-size: 0.72rem; letter-spacing: 0.18em; text-transform: uppercase;
  width: 38%;
}
.spec tr:last-child th, .spec tr:last-child td { border-bottom: 0; }

/* ---------- Hours grid -------------------------------------------- */
.hours {
  display: grid; grid-template-columns: 1fr;
  border-top: 1px solid var(--rule);
}
.hours dl {
  margin: 0; display: grid; grid-template-columns: 1fr auto;
  padding: 0.9rem 0; border-bottom: 1px solid var(--rule-soft);
  gap: 1rem;
}
.hours dt { font-family: var(--sans); font-size: 0.82rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--muted); }
.hours dd { margin: 0; font-family: var(--serif); font-size: 1.1rem; color: var(--ink); }
.hours dl.is-closed dd { color: var(--signal); font-style: italic; }

/* ---------- Pull quote -------------------------------------------- */
.pullquote {
  font-family: var(--serif);
  font-size: var(--step-3);
  line-height: 1.25;
  color: var(--ink);
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
  padding: clamp(1.5rem, 4vw, 2.5rem) 0;
  margin: clamp(2rem, 5vw, 3rem) 0;
}
.pullquote::before { content: "“"; color: var(--brass); font-size: 1.4em; line-height: 0; margin-right: 0.05em; vertical-align: -0.18em; }
.pullquote::after  { content: "”"; color: var(--brass); font-size: 1.4em; line-height: 0; margin-left: 0.05em;  vertical-align: -0.18em; }
.pullquote cite {
  display: block;
  margin-top: 1rem;
  font-family: var(--sans);
  font-size: 0.74rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted);
  font-style: normal;
}

/* ---------- Prose ------------------------------------------------- */
.prose { max-width: var(--col-text); }
.prose p { font-size: var(--step-1); line-height: 1.7; color: var(--ink-soft); margin-bottom: 1.2em; }
.prose p.first::first-line { letter-spacing: 0.04em; }
.prose p.first::first-letter {
  font-family: var(--serif); font-size: 4.2em; line-height: 0.86;
  float: left; padding: 0.08em 0.18em 0 0; color: var(--ink);
  font-weight: 500;
}
.prose h3 { margin-top: 2.2em; }

/* ---------- Tags / pills ------------------------------------------ */
.tag {
  display: inline-block;
  font-family: var(--sans);
  font-size: 0.7rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted);
  padding: 0.3rem 0.7rem;
  border: 1px solid var(--rule);
  background: transparent;
  margin: 0 0.3rem 0.5rem 0;
}
.tag--solid { background: var(--ink); color: var(--paper); border-color: var(--ink); }

/* ---------- Footer ------------------------------------------------ */
.site-footer {
  margin-top: clamp(4rem, 8vw, 7rem);
  background: var(--ink);
  color: #d8d1bf;
  padding: clamp(3rem, 6vw, 5rem) 0 2rem;
}
.site-footer a { color: #ece4cf; }
.site-footer a:hover { color: #fff; border-bottom: 1px solid var(--brass); padding-bottom: 1px; }
.site-footer h4 {
  font-family: var(--sans);
  font-size: 0.72rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: #f5eedb;
  font-style: normal;
  font-weight: 500;
  margin-bottom: 1rem;
}
.site-footer__grid {
  display: grid; gap: 2.5rem;
  grid-template-columns: 1fr;
}
@media (min-width: 700px)  { .site-footer__grid { grid-template-columns: 1.4fr 1fr 1fr; } }
@media (min-width: 1000px) { .site-footer__grid { grid-template-columns: 1.6fr 1fr 1fr 1.3fr; } }
.site-footer .brand { color: #f7f0dc; }
.site-footer .brand small { color: #b6ac96; }
.site-footer p, .site-footer li { font-size: 0.88rem; line-height: 1.7; color: #c8c0ad; }
.site-footer ul { list-style: none; padding: 0; margin: 0; }
.site-footer li { margin-bottom: 0.4rem; }
.newsletter {
  display: flex; border: 1px solid #4a4439; background: rgba(255,255,255,0.02);
}
.newsletter input {
  flex: 1; background: transparent; border: 0; color: var(--paper);
  padding: 0.8rem 0.9rem; font-family: var(--sans); font-size: 0.86rem;
  outline: none;
}
.newsletter input::placeholder { color: #918872; }
.newsletter button {
  background: transparent; border: 0; border-left: 1px solid #4a4439;
  color: #f5eedb; padding: 0 1.1rem; cursor: pointer;
  font-family: var(--sans); font-size: 0.74rem; letter-spacing: 0.18em; text-transform: uppercase;
}
.newsletter button:hover { background: var(--brass-deep); color: #fff; }
.colophon {
  margin-top: 3rem; padding-top: 1.5rem;
  border-top: 1px solid #3a342a;
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: 1rem;
  font-size: 0.74rem; letter-spacing: 0.1em; color: #918872;
}
.colophon .accred {
  display: inline-flex; gap: 1.2rem; align-items: center;
  font-size: 0.7rem; letter-spacing: 0.18em; text-transform: uppercase;
}

/* ---------- Skip link --------------------------------------------- */
.skip { position: absolute; left: -9999px; top: auto; }
.skip:focus {
  left: 1rem; top: 1rem; background: var(--ink); color: var(--paper);
  padding: 0.5rem 0.9rem; z-index: 100;
}

/* ---------- Misc -------------------------------------------------- */
.divider-mark {
  display: flex; align-items: center; justify-content: center;
  gap: 1rem; margin: clamp(2rem, 5vw, 3.5rem) auto;
  color: var(--muted); font-family: var(--serif); font-style: italic;
}
.divider-mark::before, .divider-mark::after {
  content: ""; flex: 1; max-width: 6rem; height: 1px; background: var(--rule);
}

.kvlist {
  display: grid; gap: 0; grid-template-columns: 1fr;
  border-top: 1px solid var(--rule);
}
.kvlist > div {
  display: grid; grid-template-columns: 10rem 1fr; gap: 1rem;
  padding: 1rem 0; border-bottom: 1px solid var(--rule-soft);
}
.kvlist dt {
  font-family: var(--sans); font-size: 0.72rem; letter-spacing: 0.18em;
  text-transform: uppercase; color: var(--muted); margin: 0;
}
.kvlist dd { margin: 0; font-family: var(--serif); font-size: 1.05rem; color: var(--ink); }

/* Active page indication on body[data-page] */
body[data-page="home"]       .nav a[data-nav="home"]       { color: var(--ink); border-bottom-color: var(--brass); }
body[data-page="collection"] .nav a[data-nav="collection"] { color: var(--ink); border-bottom-color: var(--brass); }
body[data-page="visit"]      .nav a[data-nav="visit"]      { color: var(--ink); border-bottom-color: var(--brass); }
body[data-page="about"]      .nav a[data-nav="about"]      { color: var(--ink); border-bottom-color: var(--brass); }
body[data-page="membership"] .nav a[data-nav="membership"] { color: var(--ink); border-bottom-color: var(--brass); }
body[data-page="artwork"]    .nav a[data-nav="collection"] { color: var(--ink); border-bottom-color: var(--brass); }

/* Print: keep things readable */
@media print {
  .site-header, .site-footer, .banner, .nav__toggle { display: none; }
  body { background: #fff; color: #000; }
  a { color: #000; text-decoration: underline; }
}