/* =========================================================
   Rafael Gaete — Portfolio Website
   Design system: restrained gallery palette, stencil display
   type for the artist's name and major headings, neutral sans
   for everything else. The artwork supplies the color.
   ========================================================= */

:root {
  /* Palette */
  --color-white: #ffffff;
  --color-warm-white: #f7f5f2;
  --color-paper: #f2efe9;
  --color-black: #0c0c0c;
  --color-charcoal: #232323;
  --color-gray-900: #3a3a3a;
  --color-gray-700: #5c5c5c;
  --color-gray-500: #8a8a8a;
  --color-gray-300: #d4d1cb;
  --color-gray-200: #e6e3dd;
  --color-gray-100: #f0eee9;
  --color-border: rgba(12, 12, 12, 0.12);
  --color-focus: #1a5fd0;

  /* Type */
  --font-display: "Allerta Stencil", "Saira Stencil One", "Arial Narrow", sans-serif;
  --font-body: "Inter", "Helvetica Neue", Arial, sans-serif;

  /* Spacing scale */
  --space-1: 0.5rem;
  --space-2: 0.75rem;
  --space-3: 1rem;
  --space-4: 1.5rem;
  --space-5: 2rem;
  --space-6: 3rem;
  --space-7: 4.5rem;
  --space-8: 6.5rem;
  --space-9: 9rem;

  /* Layout */
  --max-width: 1440px;
  --content-width: 760px;
  --header-height: 88px;
  --header-height-mobile: 64px;

  /* Motion */
  --ease: cubic-bezier(0.4, 0, 0.2, 1);
  --dur-fast: 180ms;
  --dur-med: 320ms;
  --dur-slow: 600ms;
}

@media (prefers-reduced-motion: reduce) {
  :root {
    --dur-fast: 0ms;
    --dur-med: 0ms;
    --dur-slow: 0ms;
  }
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--color-charcoal);
  background: var(--color-white);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  line-height: 1.5;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; }
ul { margin: 0; padding: 0; list-style: none; }
h1, h2, h3, h4, p { margin: 0; }

/* Visually hidden but accessible */
.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border: 0;
}

/* Skip link */
.skip-link {
  position: absolute;
  left: var(--space-3);
  top: -60px;
  background: var(--color-black);
  color: var(--color-white);
  padding: var(--space-2) var(--space-3);
  z-index: 200;
  transition: top var(--dur-fast) var(--ease);
  font-size: 0.875rem;
  letter-spacing: 0.04em;
}
.skip-link:focus { top: var(--space-3); }

/* Focus visibility */
:focus-visible {
  outline: 2px solid var(--color-focus);
  outline-offset: 3px;
}
a:focus-visible, button:focus-visible { outline-offset: 2px; }

/* ---------- Type scale ---------- */
.font-display {
  font-family: var(--font-display);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 400;
}

.eyebrow {
  font-family: var(--font-body);
  font-size: 0.72rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--color-gray-700);
}

/* ---------- Layout helpers ---------- */
.wrap {
  max-width: var(--max-width);
  margin: 0 auto;
  padding-left: var(--space-5);
  padding-right: var(--space-5);
}
@media (max-width: 640px) {
  .wrap { padding-left: var(--space-3); padding-right: var(--space-3); }
}

.page-main { min-height: 60vh; }

/* ---------- Header ---------- */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  height: var(--header-height-mobile);
  display: flex;
  align-items: center;
  background: transparent;
  transition: background var(--dur-med) var(--ease), border-color var(--dur-med) var(--ease);
  border-bottom: 1px solid transparent;
}
@media (min-width: 768px) {
  .site-header { height: var(--header-height); }
}

.site-header.is-solid {
  background: rgba(247, 245, 242, 0.94);
  -webkit-backdrop-filter: saturate(140%) blur(6px);
  backdrop-filter: saturate(140%) blur(6px);
  border-bottom-color: var(--color-border);
}

.site-header.on-dark:not(.is-solid) .logo,
.site-header.on-dark:not(.is-solid) .nav-link {
  color: var(--color-white);
}
.site-header.on-dark:not(.is-solid) .nav-link.is-active { opacity: 1; }
.site-header.on-dark:not(.is-solid) .menu-btn span { background: var(--color-white); }

.header-inner {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  font-family: var(--font-display);
  font-size: 1.1rem;
  letter-spacing: 0.14em;
  color: var(--color-black);
  white-space: nowrap;
}
.logo-full { display: none; }
.logo-short { display: inline; }
@media (min-width: 560px) {
  .logo-full { display: inline; }
  .logo-short { display: none; }
}

.primary-nav { display: none; }
@media (min-width: 768px) {
  .primary-nav {
    display: flex;
    gap: var(--space-5);
  }
}

.nav-link {
  font-size: 0.8rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--color-charcoal);
  padding-bottom: 4px;
  border-bottom: 1px solid transparent;
  opacity: 0.72;
  transition: opacity var(--dur-fast) var(--ease), border-color var(--dur-fast) var(--ease);
}
.nav-link:hover { opacity: 1; }
.nav-link.is-active {
  opacity: 1;
  border-bottom-color: currentColor;
}

.menu-btn {
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 32px; height: 32px;
  background: none;
  border: 0;
  padding: 0;
}
@media (min-width: 768px) { .menu-btn { display: none; } }
.menu-btn span {
  display: block;
  height: 1px;
  background: var(--color-black);
  transition: transform var(--dur-fast) var(--ease), opacity var(--dur-fast) var(--ease);
}
.menu-btn[aria-expanded="true"] span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.menu-btn[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.menu-btn[aria-expanded="true"] span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

.mobile-menu {
  position: fixed;
  inset: 0;
  background: var(--color-warm-white);
  z-index: 90;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: center;
  gap: var(--space-4);
  padding: var(--space-6) var(--space-5);
  transform: translateY(-8px);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--dur-med) var(--ease), transform var(--dur-med) var(--ease);
}
.mobile-menu.is-open {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}
.mobile-menu a {
  font-family: var(--font-display);
  font-size: 2rem;
  letter-spacing: 0.06em;
  color: var(--color-black);
}
.mobile-menu a.is-active { text-decoration: underline; text-underline-offset: 8px; }

/* ---------- Hero (Home) ---------- */
.hero {
  position: relative;
  width: 100%;
  height: 100svh;
  min-height: 560px;
  overflow: hidden;
  background: var(--color-black);
}
.hero-img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  opacity: 0;
  animation: hero-fade var(--dur-slow) var(--ease) forwards;
  animation-delay: 80ms;
}
@keyframes hero-fade { to { opacity: 1; } }
@media (prefers-reduced-motion: reduce) { .hero-img { opacity: 1; animation: none; } }

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(0,0,0,0.28) 0%, rgba(0,0,0,0.06) 30%, rgba(0,0,0,0.06) 70%, rgba(0,0,0,0.34) 100%);
  pointer-events: none;
}

.hero-content {
  position: relative;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 0 var(--space-4);
}

.hero-name {
  color: var(--color-white);
  font-size: clamp(2.2rem, 9vw, 6.2rem);
  letter-spacing: 0.09em;
  text-shadow: 0 2px 24px rgba(0,0,0,0.35);
}

.hero-scroll {
  position: absolute;
  left: 50%;
  bottom: var(--space-5);
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-1);
  color: var(--color-white);
}
.hero-scroll span {
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  opacity: 0.85;
}
.hero-scroll svg { animation: bob 2.2s var(--ease) infinite; }
@keyframes bob { 0%,100% { transform: translateY(0); } 50% { transform: translateY(6px); } }
@media (prefers-reduced-motion: reduce) { .hero-scroll svg { animation: none; } }

.hero-caption {
  position: absolute;
  left: var(--space-4);
  bottom: var(--space-4);
  color: var(--color-white);
  font-size: 0.78rem;
  letter-spacing: 0.03em;
  opacity: 0.92;
  text-shadow: 0 1px 10px rgba(0,0,0,0.4);
}
.hero-caption .cap-title { font-style: italic; }

/* ---------- Intro section ---------- */
.intro {
  padding: var(--space-8) 0;
  background: var(--color-warm-white);
}
.intro-inner {
  max-width: 760px;
  margin: 0 auto;
  text-align: center;
  padding: 0 var(--space-4);
}
.intro-text {
  font-size: clamp(1.05rem, 2vw, 1.35rem);
  line-height: 1.65;
  color: var(--color-gray-900);
  font-weight: 400;
}
.intro-link {
  display: inline-block;
  margin-top: var(--space-5);
  font-size: 0.85rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  border-bottom: 1px solid currentColor;
  padding-bottom: 3px;
  transition: opacity var(--dur-fast) var(--ease);
}
.intro-link:hover { opacity: 0.6; }

/* ---------- Interior page header spacer ---------- */
.page-hero {
  padding-top: calc(var(--header-height-mobile) + var(--space-7));
  padding-bottom: var(--space-6);
  background: var(--color-warm-white);
}
@media (min-width: 768px) {
  .page-hero { padding-top: calc(var(--header-height) + var(--space-8)); padding-bottom: var(--space-7); }
}
.page-title {
  font-size: clamp(2.4rem, 7vw, 4.2rem);
  letter-spacing: 0.06em;
  color: var(--color-black);
}
.page-subtitle {
  margin-top: var(--space-3);
  color: var(--color-gray-700);
  font-size: 1rem;
  max-width: 44ch;
}

/* ---------- Gallery ---------- */
.gallery-controls {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2) var(--space-4);
  padding: 0 0 var(--space-6);
}
.filter-btn {
  background: none;
  border: 0;
  border-bottom: 1px solid transparent;
  padding: 4px 0;
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-gray-700);
  transition: color var(--dur-fast) var(--ease), border-color var(--dur-fast) var(--ease);
}
.filter-btn:hover { color: var(--color-black); }
.filter-btn[aria-pressed="true"] {
  color: var(--color-black);
  border-bottom-color: var(--color-black);
}

.gallery-grid {
  columns: 1;
  column-gap: var(--space-4);
  padding-bottom: var(--space-8);
}
@media (min-width: 560px) { .gallery-grid { columns: 2; } }
@media (min-width: 1024px) { .gallery-grid { columns: 3; } }
@media (min-width: 1400px) { .gallery-grid { columns: 4; } }

.gallery-item {
  break-inside: avoid;
  margin-bottom: var(--space-4);
  position: relative;
}
.gallery-item.is-hidden { display: none; }

.gallery-figure-btn {
  display: block;
  width: 100%;
  background: none;
  border: 0;
  padding: 0;
  position: relative;
  overflow: hidden;
  background: var(--color-gray-100);
}
.gallery-figure-btn img {
  width: 100%;
  height: auto;
  transition: transform var(--dur-med) var(--ease);
}
@media (hover: hover) {
  .gallery-figure-btn:hover img { transform: scale(1.015); }
}

.gallery-caption {
  position: absolute;
  left: 0; right: 0; bottom: 0;
  padding: var(--space-3) var(--space-3) var(--space-2);
  background: linear-gradient(0deg, rgba(0,0,0,0.55) 0%, rgba(0,0,0,0) 100%);
  color: var(--color-white);
  text-align: left;
  opacity: 0;
  transform: translateY(6px);
  transition: opacity var(--dur-fast) var(--ease), transform var(--dur-fast) var(--ease);
}
@media (hover: hover) {
  .gallery-figure-btn:hover .gallery-caption,
  .gallery-figure-btn:focus-visible .gallery-caption { opacity: 1; transform: translateY(0); }
}
@media (hover: none) {
  .gallery-caption {
    position: static;
    background: none;
    color: var(--color-charcoal);
    opacity: 1;
    transform: none;
    padding: var(--space-2) 2px 0;
  }
}
.gallery-caption .cap-title { font-size: 0.9rem; font-style: italic; }
.gallery-caption .cap-year { font-size: 0.78rem; opacity: 0.85; }

/* ---------- Lightbox ---------- */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 300;
  background: rgba(10, 10, 10, 0.96);
  display: none;
  align-items: center;
  justify-content: center;
  padding: var(--space-3);
}
.lightbox.is-open { display: flex; }

.lightbox-figure {
  max-width: min(92vw, 1400px);
  max-height: 86vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-3);
}
.lightbox-img-wrap {
  max-width: 100%;
  max-height: 72vh;
  display: flex;
  align-items: center;
  justify-content: center;
}
.lightbox-img {
  max-width: 100%;
  max-height: 72vh;
  width: auto;
  height: auto;
  object-fit: contain;
  background: var(--color-black);
}
.lightbox-meta {
  color: var(--color-white);
  text-align: center;
  font-size: 0.85rem;
  line-height: 1.6;
}
.lightbox-meta .lb-title { font-style: italic; font-size: 1rem; }
.lightbox-meta .lb-sub { color: var(--color-gray-300); }
.lightbox-meta .lb-unconfirmed {
  display: inline-block;
  margin-top: 4px;
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-gray-500);
}

.lightbox-close,
.lightbox-nav {
  position: absolute;
  background: none;
  border: 0;
  color: var(--color-white);
  padding: var(--space-2);
}
.lightbox-close { top: var(--space-3); right: var(--space-3); }
.lightbox-prev { left: var(--space-2); top: 50%; transform: translateY(-50%); }
.lightbox-next { right: var(--space-2); top: 50%; transform: translateY(-50%); }
@media (min-width: 768px) {
  .lightbox-prev { left: var(--space-4); }
  .lightbox-next { right: var(--space-4); }
}
.lightbox-close svg, .lightbox-nav svg { display: block; }
.lightbox-close:hover, .lightbox-nav:hover { opacity: 0.7; }

.lightbox-counter {
  position: absolute;
  left: var(--space-3);
  top: var(--space-3);
  color: var(--color-gray-300);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
}

/* ---------- Statement ---------- */
.statement-layout {
  display: grid;
  gap: var(--space-6);
  padding-bottom: var(--space-8);
}
@media (min-width: 1024px) {
  .statement-layout.has-image {
    grid-template-columns: 1fr 1.3fr;
    align-items: start;
    gap: var(--space-7);
  }
  .statement-layout.has-image .statement-image { order: 2; position: sticky; top: calc(var(--header-height) + var(--space-4)); }
  .statement-layout.has-image .statement-text { order: 1; }
}
.statement-image img {
  width: 100%;
  height: auto;
}
.statement-image .cap {
  margin-top: var(--space-2);
  font-size: 0.78rem;
  color: var(--color-gray-500);
  font-style: italic;
}

.statement-text {
  max-width: var(--content-width);
}
.statement-text p {
  font-size: 1.05rem;
  line-height: 1.85;
  color: var(--color-gray-900);
  margin-bottom: var(--space-4);
}

.pull-quote {
  margin: var(--space-6) 0;
  padding: var(--space-5) 0;
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}
.pull-quote p {
  font-family: var(--font-display);
  font-size: clamp(1.4rem, 3.4vw, 2.1rem);
  letter-spacing: 0.03em;
  text-transform: none;
  color: var(--color-black);
  line-height: 1.4;
  max-width: 22ch;
}

.section-block {
  max-width: var(--content-width);
  margin-top: var(--space-8);
  padding-top: var(--space-6);
  border-top: 1px solid var(--color-border);
}
.section-heading {
  font-size: 1rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  margin-bottom: var(--space-4);
  color: var(--color-black);
}
.bio-text p {
  font-size: 1rem;
  line-height: 1.8;
  color: var(--color-gray-900);
  margin-bottom: var(--space-3);
}

.exhibit-list { display: flex; flex-direction: column; gap: var(--space-3); }
.exhibit-row {
  display: grid;
  grid-template-columns: 4.5rem 1fr;
  gap: var(--space-3);
  padding-bottom: var(--space-3);
  border-bottom: 1px solid var(--color-gray-200);
  font-size: 0.92rem;
}
.exhibit-row:last-child { border-bottom: 0; }
.exhibit-year { color: var(--color-gray-500); font-variant-numeric: tabular-nums; }
.exhibit-name { font-style: italic; color: var(--color-black); }
.exhibit-loc { color: var(--color-gray-700); }
.exhibit-type { color: var(--color-gray-500); font-size: 0.82rem; }

/* ---------- Contact ---------- */
.contact-layout {
  display: grid;
  gap: var(--space-7);
  padding-bottom: var(--space-6);
}
@media (min-width: 900px) {
  .contact-layout { grid-template-columns: 0.85fr 1.15fr; }
}
.contact-info p { font-size: 1.05rem; line-height: 1.7; color: var(--color-gray-900); margin-bottom: var(--space-5); max-width: 42ch; }
.contact-detail { margin-bottom: var(--space-4); }
.contact-detail dt {
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-gray-500);
  margin-bottom: 4px;
}
.contact-detail dd {
  margin: 0;
  font-size: 1.02rem;
  color: var(--color-black);
}
.contact-detail a:hover { text-decoration: underline; }

.form-field { margin-bottom: var(--space-4); }
.form-field label {
  display: block;
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-gray-700);
  margin-bottom: var(--space-1);
}
.form-field input,
.form-field textarea {
  width: 100%;
  border: 1px solid var(--color-gray-300);
  background: var(--color-white);
  padding: 0.85rem 0.9rem;
  font-family: var(--font-body);
  font-size: 1rem;
  color: var(--color-black);
  transition: border-color var(--dur-fast) var(--ease);
}
.form-field input:focus,
.form-field textarea:focus {
  border-color: var(--color-black);
  outline: none;
  box-shadow: 0 0 0 1px var(--color-black);
}
.form-field textarea { min-height: 140px; resize: vertical; }
.form-field .field-error {
  display: none;
  color: #a3311c;
  font-size: 0.8rem;
  margin-top: 6px;
}
.form-field.has-error input,
.form-field.has-error textarea { border-color: #a3311c; }
.form-field.has-error .field-error { display: block; }

.hp-field { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }

.submit-btn {
  background: var(--color-black);
  color: var(--color-white);
  border: 1px solid var(--color-black);
  padding: 0.95rem 2.2rem;
  font-size: 0.82rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  transition: background var(--dur-fast) var(--ease), color var(--dur-fast) var(--ease);
}
.submit-btn:hover { background: var(--color-white); color: var(--color-black); }
.submit-btn:disabled { opacity: 0.5; cursor: not-allowed; }

.form-status {
  margin-top: var(--space-3);
  font-size: 0.92rem;
  padding: var(--space-2) var(--space-3);
  display: none;
}
.form-status.is-success { display: block; background: #eef4ea; color: #2f5c2a; border: 1px solid #cfe0c7; }
.form-status.is-error { display: block; background: #fbecea; color: #a3311c; border: 1px solid #efc7c0; }

.email-fallback {
  margin-top: var(--space-3);
  font-size: 0.85rem;
  color: var(--color-gray-700);
}
.email-fallback a { text-decoration: underline; }

.contact-strip {
  width: 100%;
  height: clamp(80px, 14vw, 160px);
  object-fit: cover;
  object-position: center;
  margin-top: var(--space-7);
}

/* ---------- Footer ---------- */
.site-footer {
  background: var(--color-warm-white);
  border-top: 1px solid var(--color-border);
  padding: var(--space-6) 0 var(--space-5);
}
.footer-inner {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  align-items: flex-start;
}
@media (min-width: 640px) {
  .footer-inner { flex-direction: row; justify-content: space-between; align-items: center; }
}
.footer-mark { font-family: var(--font-display); font-size: 0.95rem; letter-spacing: 0.1em; color: var(--color-black); }
.footer-meta { font-size: 0.8rem; color: var(--color-gray-500); display: flex; gap: var(--space-4); flex-wrap: wrap; }
.footer-meta a:hover { text-decoration: underline; }

/* ---------- Utility ---------- */
.visually-hide-until-js.no-js-fallback { display: block; }
.js .visually-hide-until-js.no-js-fallback { display: none; }

noscript .noscript-note {
  display: block;
  background: var(--color-gray-100);
  padding: var(--space-3);
  text-align: center;
  font-size: 0.85rem;
}