/* =========================================================================
   Lippitt Fine Arts — site stylesheet
   1. Tokens          5. Buttons & forms
   2. Base & type     6. Work grid & gallery
   3. Layout          7. Page components
   4. Header & nav    8. Footer, lightbox, utilities
   ========================================================================= */

/* 1. TOKENS ------------------------------------------------------------- */
:root {
  /* Palette — warm gallery white, ink, and a single clay accent */
  --paper:        #f6f3ee;
  --paper-2:      #fbf9f6;
  --paper-warm:   #eeeae2;
  --ink:          #1d1b18;
  --ink-soft:     #514c45;
  --ink-faint:    #8b847a;
  --rule:         #d9d3c8;
  --clay:         #8a5a3b;
  --clay-deep:    #6d4529;
  --dark:         #1d1b18;
  --dark-soft:    #2a2723;

  /* Type */
  --font-display: "Cormorant Garamond", "Hoefler Text", Georgia, "Times New Roman", serif;
  --font-body:    "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  --tracking-wide: 0.16em;

  /* Fluid type scale */
  --step--1: clamp(0.78rem, 0.75rem + 0.15vw, 0.86rem);
  --step-0:  clamp(0.95rem, 0.92rem + 0.18vw, 1.05rem);
  --step-1:  clamp(1.15rem, 1.05rem + 0.5vw, 1.4rem);
  --step-2:  clamp(1.5rem, 1.3rem + 1vw, 2.1rem);
  --step-3:  clamp(2rem, 1.6rem + 2vw, 3.2rem);
  --step-4:  clamp(2.6rem, 1.9rem + 3.4vw, 5rem);

  /* Space */
  --space-3xs: 0.25rem;
  --space-2xs: 0.5rem;
  --space-xs:  0.75rem;
  --space-s:   1rem;
  --space-m:   1.5rem;
  --space-l:   2.5rem;
  --space-xl:  4rem;
  --space-2xl: 6rem;
  --space-3xl: clamp(5rem, 10vw, 9rem);

  /* Measure & structure */
  --measure: 62ch;
  --wrap: 1400px;
  --wrap-narrow: 860px;
  --header-h: 84px;
  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
}
/* 2. BASE & TYPE -------------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.001ms !important; transition-duration: 0.001ms !important; }
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: var(--step-0);
  line-height: 1.65;
  font-weight: 350;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 400;
  line-height: 1.1;
  letter-spacing: -0.01em;
  margin: 0 0 var(--space-s);
  text-wrap: balance;
}
h1 { font-size: var(--step-4); }
h2 { font-size: var(--step-3); }
h3 { font-size: var(--step-2); }
h4 { font-size: var(--step-1); }

p { margin: 0 0 var(--space-s); max-width: var(--measure); text-wrap: pretty; }
img, svg, video { display: block; max-width: 100%; height: auto; }

a { color: inherit; text-decoration-color: var(--rule); text-underline-offset: 0.22em; }
a:hover { text-decoration-color: var(--clay); }

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

/* Small caps label — used for eyebrows, meta, nav */
.label {
  font-size: var(--step--1);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  font-weight: 500;
  color: var(--ink-faint);
  margin: 0 0 var(--space-s);
}
.label--accent { color: var(--clay); }

.lede { font-size: var(--step-1); line-height: 1.5; color: var(--ink-soft); font-weight: 300; }
.muted { color: var(--ink-soft); }
.prose > :last-child { margin-bottom: 0; }
.prose h3 { margin-top: var(--space-l); }

/* 3. LAYOUT ------------------------------------------------------------- */
.wrap { width: min(100% - 2.5rem, var(--wrap)); margin-inline: auto; }
.wrap--narrow { width: min(100% - 2.5rem, var(--wrap-narrow)); margin-inline: auto; }
@media (min-width: 700px) { .wrap, .wrap--narrow { width: min(100% - 5rem, var(--wrap)); } }
@media (min-width: 700px) { .wrap--narrow { width: min(100% - 5rem, var(--wrap-narrow)); } }

.section { padding-block: var(--space-3xl); }
.section--tight { padding-block: var(--space-xl); }
.section--paper-2 { background: var(--paper-2); }
.section--warm { background: var(--paper-warm); }
.section--dark { background: var(--dark); color: var(--paper); }
.section--dark .label,
.section--dark .muted { color: #a49b8e; }
.section--dark a { text-decoration-color: #5a534a; }

.rule { border: 0; border-top: 1px solid var(--rule); margin: 0; }

.section-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--space-s) var(--space-l);
  margin-bottom: var(--space-l);
  padding-bottom: var(--space-s);
  border-bottom: 1px solid var(--rule);
}
.section-head h2 { margin: 0; }

.grid-2 { display: grid; gap: var(--space-l); }
@media (min-width: 860px) { .grid-2 { grid-template-columns: repeat(2, 1fr); gap: var(--space-xl); } }
.split {
  display: grid;
  gap: var(--space-l);
  align-items: start;
}
@media (min-width: 900px) {
  .split { grid-template-columns: 1fr 1.15fr; gap: var(--space-2xl); }
  .split--sticky > :first-child { position: sticky; top: calc(var(--header-h) + var(--space-l)); }
}

/* 4. HEADER & NAV ------------------------------------------------------- */
.skip-link {
  position: absolute; left: var(--space-s); top: -100px; z-index: 200;
  background: var(--ink); color: var(--paper);
  padding: var(--space-2xs) var(--space-s); border-radius: 2px;
}
.skip-link:focus { top: var(--space-s); }

.site-header {
  position: sticky; top: 0; z-index: 100;
  border-bottom: 1px solid transparent;
  transition: border-color 0.3s var(--ease);
}
/* The frosted backdrop lives on a pseudo-element: backdrop-filter on the
   header itself would make it the containing block for the fixed mobile nav. */
.site-header::before {
  content: ""; position: absolute; inset: 0; z-index: -1;
  background: color-mix(in srgb, var(--paper) 88%, transparent);
  backdrop-filter: saturate(140%) blur(10px);
}
.site-header.is-stuck { border-bottom-color: var(--rule); }
.site-header__inner {
  min-height: var(--header-h);
  display: flex; align-items: center; justify-content: space-between;
  gap: var(--space-m);
}

.brand { text-decoration: none; display: inline-flex; flex-direction: column; line-height: 1; }
.brand__name {
  font-family: var(--font-display);
  font-size: clamp(1.25rem, 1.1rem + 0.6vw, 1.6rem);
  letter-spacing: 0.02em;
}
.brand__tag {
  font-size: 0.65rem; letter-spacing: var(--tracking-wide); text-transform: uppercase;
  color: var(--ink-faint); margin-top: 0.45em;
}

.nav__list {
  list-style: none; display: flex; align-items: center;
  gap: clamp(1rem, 2.2vw, 2.25rem); margin: 0; padding: 0;
}
.nav__link {
  text-decoration: none;
  font-size: var(--step--1);
  letter-spacing: 0.1em; text-transform: uppercase; font-weight: 500;
  color: var(--ink-soft);
  padding-block: 0.4em;
  position: relative;
  transition: color 0.2s var(--ease);
}
.nav__link::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: 0;
  height: 1px; background: var(--clay);
  transform: scaleX(0); transform-origin: left; transition: transform 0.3s var(--ease);
}
.nav__link:hover { color: var(--ink); }
.nav__link:hover::after,
.nav__link[aria-current="page"]::after { transform: scaleX(1); }
.nav__link[aria-current="page"] { color: var(--ink); }

.nav-toggle {
  display: none;
  background: none; border: 0; padding: var(--space-2xs);
  cursor: pointer; color: var(--ink);
}
.nav-toggle__bar {
  display: block; width: 26px; height: 1px; background: currentColor;
  transition: transform 0.3s var(--ease), opacity 0.2s var(--ease);
}
.nav-toggle__bar + .nav-toggle__bar { margin-top: 7px; }
[aria-expanded="true"] .nav-toggle__bar:nth-child(1) { transform: translateY(8px) rotate(45deg); }
[aria-expanded="true"] .nav-toggle__bar:nth-child(2) { opacity: 0; }
[aria-expanded="true"] .nav-toggle__bar:nth-child(3) { transform: translateY(-8px) rotate(-45deg); }

@media (max-width: 860px) {
  .nav-toggle { display: block; }
  .nav {
    position: fixed; inset: var(--header-h) 0 0 0;
    background: var(--paper);
    padding: var(--space-xl) var(--space-m);
    transform: translateY(-8px);
    opacity: 0; visibility: hidden;
    transition: opacity 0.25s var(--ease), transform 0.25s var(--ease), visibility 0.25s;
    overflow-y: auto;
  }
  .nav.is-open { opacity: 1; visibility: visible; transform: none; }
  .nav__list { flex-direction: column; align-items: flex-start; gap: var(--space-m); }
  .nav__link { font-size: var(--step-1); letter-spacing: 0.06em; text-transform: none; font-family: var(--font-display); }
  body.nav-open { overflow: hidden; }
}

/* 5. BUTTONS & FORMS ---------------------------------------------------- */
.btn {
  display: inline-flex; align-items: center; gap: 0.6em;
  font-size: var(--step--1); letter-spacing: 0.12em; text-transform: uppercase; font-weight: 500;
  padding: 0.95em 1.9em;
  border: 1px solid var(--ink); background: none; color: var(--ink);
  text-decoration: none; cursor: pointer;
  transition: background 0.25s var(--ease), color 0.25s var(--ease), border-color 0.25s var(--ease);
}
.btn:hover { background: var(--ink); color: var(--paper); }
.btn--solid { background: var(--ink); color: var(--paper); }
.btn--solid:hover { background: var(--clay); border-color: var(--clay); }
.btn--ghost { border-color: var(--rule); color: var(--ink-soft); }
.btn--ghost:hover { border-color: var(--ink); background: none; color: var(--ink); }
.section--dark .btn { border-color: #4b453d; color: var(--paper); }
.section--dark .btn:hover { background: var(--paper); color: var(--ink); }

.link-arrow {
  display: inline-flex; align-items: center; gap: 0.5em;
  font-size: var(--step--1); letter-spacing: 0.12em; text-transform: uppercase; font-weight: 500;
  text-decoration: none; color: var(--ink);
  border-bottom: 1px solid var(--rule); padding-bottom: 0.35em;
  transition: border-color 0.25s var(--ease), gap 0.25s var(--ease);
}
.link-arrow:hover { border-color: var(--clay); gap: 0.9em; }
.link-arrow::after { content: "→"; }

.form { display: grid; gap: var(--space-m); max-width: 42rem; }
.field { display: grid; gap: var(--space-3xs); }
.field label { font-size: var(--step--1); letter-spacing: 0.1em; text-transform: uppercase; color: var(--ink-soft); }
.field input, .field textarea, .field select {
  font: inherit; font-size: var(--step-0);
  color: var(--ink); background: var(--paper-2);
  border: 1px solid var(--rule); border-radius: 0;
  padding: 0.8em 0.9em;
  transition: border-color 0.2s var(--ease), background 0.2s var(--ease);
}
.field input:focus, .field textarea:focus, .field select:focus {
  border-color: var(--clay); background: #fff; outline: none;
}
.field textarea { min-height: 9rem; resize: vertical; }
.field__hint { font-size: var(--step--1); color: var(--ink-faint); }
.form__row { display: grid; gap: var(--space-m); }
@media (min-width: 640px) { .form__row { grid-template-columns: 1fr 1fr; } }
.form__status { font-size: var(--step--1); color: var(--clay); min-height: 1.4em; }

/* 6. WORK GRID & GALLERY ------------------------------------------------ */
.filters {
  display: flex; flex-wrap: wrap; gap: var(--space-2xs) var(--space-s);
  margin-bottom: var(--space-l);
}
.filter {
  background: none; border: 0; cursor: pointer;
  font: inherit; font-size: var(--step--1);
  letter-spacing: 0.1em; text-transform: uppercase; color: var(--ink-faint);
  padding: 0.5em 0; border-bottom: 1px solid transparent;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}
.filter:hover { color: var(--ink); }
.filter[aria-pressed="true"] { color: var(--ink); border-bottom-color: var(--clay); }

.work-grid {
  list-style: none; margin: 0; padding: 0;
  display: grid; gap: var(--space-xl) var(--space-l);
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 320px), 1fr));
}
.work-grid--featured { grid-template-columns: repeat(auto-fill, minmax(min(100%, 400px), 1fr)); }
.work-grid__item.is-hidden { display: none; }
.work-grid__item.is-wide { grid-column: span 2; }
@media (max-width: 760px) { .work-grid__item.is-wide { grid-column: span 1; } }

.work-card { display: block; text-decoration: none; height: 100%; }
/* Each work sits centred in a square "mat" so mixed orientations still line
   up in a tidy grid; the painting itself is never cropped. */
.work-card__frame {
  background: var(--paper-warm);
  overflow: hidden;
  margin-bottom: var(--space-s);
  aspect-ratio: 1;
  display: grid;
  place-items: center;
  padding: clamp(1rem, 3.5vw, 2.75rem);
}
.work-grid__item.is-wide .work-card__frame { aspect-ratio: 2 / 1; }
.work-card__img {
  max-width: 100%; max-height: 100%; width: auto; height: auto;
  object-fit: contain;
  box-shadow: 0 12px 30px -18px rgba(29, 27, 24, 0.55);
  transition: transform 0.7s var(--ease), filter 0.5s var(--ease);
}
.work-card:hover .work-card__img { transform: scale(1.03); }
.work-card__title { font-family: var(--font-display); font-size: var(--step-1); margin: 0 0 0.15em; }
.work-card__meta { font-size: var(--step--1); color: var(--ink-faint); margin: 0; }
.work-card__badge {
  display: inline-block; margin-top: var(--space-2xs);
  font-size: 0.68rem; letter-spacing: var(--tracking-wide); text-transform: uppercase;
  color: var(--clay); border: 1px solid currentColor; padding: 0.25em 0.7em;
}

/* Hero */
.hero { position: relative; padding-block: var(--space-2xl) var(--space-3xl); overflow: hidden; }
.hero__inner { display: grid; gap: var(--space-l); align-items: end; }
@media (min-width: 1000px) { .hero__inner { grid-template-columns: 1fr 1.4fr; gap: var(--space-2xl); } }
.hero__title { margin-bottom: var(--space-m); }
.hero__title em { font-style: italic; color: var(--clay); }
.hero__figure { margin: 0; }
.hero__figure img { width: 100%; }
.hero__caption {
  margin-top: var(--space-s); font-size: var(--step--1); color: var(--ink-faint);
  display: flex; flex-wrap: wrap; gap: 0.5em 1em;
}

/* Work detail */
.work-detail__media { display: grid; gap: var(--space-m); }
.work-detail__media img { width: 100%; background: var(--paper-warm); cursor: zoom-in; }
.spec-list { margin: 0; padding: 0; border-top: 1px solid var(--rule); }
.spec-list div {
  display: grid; grid-template-columns: 9rem 1fr; gap: var(--space-s);
  padding: var(--space-xs) 0; border-bottom: 1px solid var(--rule);
}
.spec-list dt { font-size: var(--step--1); letter-spacing: 0.1em; text-transform: uppercase; color: var(--ink-faint); }
.spec-list dd { margin: 0; }
@media (max-width: 560px) { .spec-list div { grid-template-columns: 1fr; gap: var(--space-3xs); } }

.work-nav {
  display: flex; justify-content: space-between; gap: var(--space-m);
  border-top: 1px solid var(--rule); padding-top: var(--space-m); margin-top: var(--space-xl);
  font-size: var(--step--1); letter-spacing: 0.08em; text-transform: uppercase;
}
.work-nav a { text-decoration: none; color: var(--ink-soft); }
.work-nav a:hover { color: var(--clay); }

/* Scale diagram — communicates "large format" at a glance */
.scale-figure { margin: 0; }
.scale-figure svg { width: 100%; height: auto; }
.scale-figure figcaption { font-size: var(--step--1); color: var(--ink-faint); margin-top: var(--space-2xs); }

/* 7. PAGE COMPONENTS ---------------------------------------------------- */
.page-head { padding-block: var(--space-2xl) var(--space-l); }
.page-head h1 { max-width: 18ch; }
.page-head .lede { margin-top: var(--space-m); }

.breadcrumb { font-size: var(--step--1); letter-spacing: 0.08em; text-transform: uppercase; color: var(--ink-faint); margin-bottom: var(--space-m); }
.breadcrumb a { text-decoration: none; }
.breadcrumb a:hover { color: var(--clay); }

/* Exhibition / press / CV listings */
.entry-list { list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--rule); }
.entry {
  display: grid; gap: var(--space-2xs) var(--space-l);
  padding: var(--space-m) 0; border-bottom: 1px solid var(--rule);
  align-items: baseline;
}
@media (min-width: 780px) { .entry { grid-template-columns: 8rem 1fr auto; } }
.entry__year { font-size: var(--step--1); letter-spacing: 0.1em; color: var(--ink-faint); }
.entry__title { font-family: var(--font-display); font-size: var(--step-1); margin: 0 0 0.15em; }
.entry__title a { text-decoration: none; }
.entry__title a:hover { color: var(--clay); }
.entry__venue { margin: 0; color: var(--ink-soft); font-size: var(--step-0); }
.entry__note { margin: var(--space-2xs) 0 0; color: var(--ink-faint); font-size: var(--step--1); }
.entry__tag {
  font-size: 0.68rem; letter-spacing: var(--tracking-wide); text-transform: uppercase;
  padding: 0.3em 0.75em; border: 1px solid var(--rule); color: var(--ink-soft); white-space: nowrap;
}
.entry__tag--now { border-color: var(--clay); color: var(--clay); }

/* CV blocks */
.cv-section { padding-block: var(--space-l); border-bottom: 1px solid var(--rule); }
.cv-section:last-child { border-bottom: 0; }
.cv-section h2 { font-size: var(--step-2); }
.cv-list { list-style: none; margin: 0; padding: 0; display: grid; gap: var(--space-xs); }
.cv-list li { display: grid; gap: var(--space-2xs) var(--space-m); }
@media (min-width: 700px) { .cv-list li { grid-template-columns: 6rem 1fr; } }
.cv-list .cv-year { font-size: var(--step--1); letter-spacing: 0.1em; color: var(--ink-faint); }
.cv-list em { font-style: italic; }

/* Feature banner (current show) */
.banner {
  display: grid; gap: var(--space-l); align-items: center;
}
@media (min-width: 900px) { .banner { grid-template-columns: 1.1fr 1fr; gap: var(--space-2xl); } }
.banner__img { background: var(--dark-soft); }

/* Quote / press pull */
.pullquote {
  font-family: var(--font-display); font-size: var(--step-2); line-height: 1.35;
  font-style: italic; max-width: 28ch; margin: 0;
}
.pullquote cite { display: block; font-family: var(--font-body); font-style: normal;
  font-size: var(--step--1); letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--ink-faint); margin-top: var(--space-m); }

/* Process steps */
.steps { list-style: none; counter-reset: step; margin: 0; padding: 0; display: grid; gap: var(--space-l); }
@media (min-width: 800px) { .steps { grid-template-columns: repeat(3, 1fr); } }
.steps li { counter-increment: step; }
.steps li::before {
  content: counter(step, decimal-leading-zero);
  display: block; font-family: var(--font-display); font-size: var(--step-2);
  color: var(--clay); margin-bottom: var(--space-2xs);
}
.steps h3 { font-size: var(--step-1); }
.steps p { font-size: var(--step-0); color: var(--ink-soft); margin: 0; }

/* Newsletter strip */
.newsletter { display: grid; gap: var(--space-l); align-items: center; }
@media (min-width: 880px) { .newsletter { grid-template-columns: 1fr 1fr; gap: var(--space-2xl); } }
.newsletter .form { max-width: none; }
.newsletter__inline { display: grid; gap: var(--space-s); }
@media (min-width: 520px) { .newsletter__inline { grid-template-columns: 1fr auto; align-items: end; } }
.section--dark .field input { background: #262320; border-color: #443f38; color: var(--paper); }
.section--dark .field label { color: #a49b8e; }

/* 8. FOOTER, LIGHTBOX, UTILITIES ---------------------------------------- */
.site-footer { background: var(--dark); color: #cfc7bb; padding-block: var(--space-2xl) var(--space-l); }
.site-footer a { color: var(--paper); text-decoration: none; }
.site-footer .muted { color: #a49b8e; }
.site-footer a:hover { color: var(--clay); }
.footer__grid { display: grid; gap: var(--space-l); }
@media (min-width: 760px) { .footer__grid { grid-template-columns: 2fr 1fr 1fr; gap: var(--space-xl); } }
.footer__title { font-family: var(--font-display); font-size: var(--step-2); color: var(--paper); margin-bottom: var(--space-2xs); }
.footer__list { list-style: none; margin: 0; padding: 0; display: grid; gap: var(--space-2xs); }
.footer__label { font-size: var(--step--1); letter-spacing: var(--tracking-wide); text-transform: uppercase; color: #8b8377; margin-bottom: var(--space-s); }
.footer__bottom {
  display: flex; flex-wrap: wrap; justify-content: space-between; gap: var(--space-s);
  margin-top: var(--space-2xl); padding-top: var(--space-m);
  border-top: 1px solid #35312b; font-size: var(--step--1); color: #8b8377;
}

/* Lightbox */
.lightbox {
  position: fixed; inset: 0; z-index: 200;
  background: rgba(20, 18, 16, 0.94);
  display: grid; place-items: center; padding: var(--space-m);
  opacity: 0; visibility: hidden; transition: opacity 0.3s var(--ease), visibility 0.3s;
}
.lightbox.is-open { opacity: 1; visibility: visible; }
.lightbox img { max-width: min(96vw, 1500px); max-height: 88vh; width: auto; }
.lightbox__caption { color: #b9b1a5; font-size: var(--step--1); text-align: center; margin-top: var(--space-s); }
.lightbox__close {
  position: absolute; top: var(--space-m); right: var(--space-m);
  background: none; border: 0; color: var(--paper); font-size: 2rem; line-height: 1;
  cursor: pointer; padding: var(--space-2xs);
}

/* Scroll reveal */
.reveal { opacity: 0; transform: translateY(18px); transition: opacity 0.7s var(--ease), transform 0.7s var(--ease); }
.reveal.is-visible { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) { .reveal { opacity: 1; transform: none; } }

.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;
}
.stack > * + * { margin-top: var(--space-s); }
.stack-l > * + * { margin-top: var(--space-l); }
.text-center { text-align: center; }
.center-block { margin-inline: auto; }

@media print {
  .site-header, .site-footer, .lightbox, .btn, .filters { display: none !important; }
  body { background: #fff; color: #000; font-size: 11pt; }
  .section { padding-block: 1rem; }
  a { text-decoration: none; }
}