/* ============================================================
   Nancy Mu Photography
   Design notes: the palette is pulled from her own work —
   deep shadow, warm golden light. The interface stays quiet so
   the photographs carry the page.
   ============================================================ */

:root {
  --ink:        #0c0c0d;   /* page ground — near black, faintly warm */
  --ink-soft:   #141416;   /* raised surfaces */
  --ink-line:   #26262a;   /* hairlines */
  --paper:      #f4f1ea;   /* primary text — warm off-white */
  --paper-dim:  #a5a09a;   /* secondary text */
  --paper-mute: #6f6b67;   /* tertiary text */
  --brass:      #c9a06a;   /* accent — the savanna gold in her photographs */
  --brass-lift: #e0bd8a;

  --serif: "Cormorant Garamond", "Hoefler Text", "Iowan Old Style", Garamond, Georgia, serif;
  --sans:  "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;

  --gutter: clamp(1.25rem, 4vw, 4rem);
  --measure: 34rem;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

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

/* A class that sets `display` will otherwise out-specify the UA's
   [hidden] rule — which silently reveals things meant to stay hidden. */
[hidden] { display: none !important; }

html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
}

body {
  margin: 0;
  background: var(--ink);
  color: var(--paper);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }

::selection { background: var(--brass); color: var(--ink); }

/* --- type ------------------------------------------------- */

h1, h2, h3 { font-family: var(--serif); font-weight: 300; margin: 0; line-height: 1.1; }

.eyebrow {
  font-family: var(--sans);
  font-size: 0.6875rem;
  font-weight: 500;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--brass);
}

.lede { font-family: var(--serif); font-size: clamp(1.25rem, 2.4vw, 1.75rem); line-height: 1.45; color: var(--paper-dim); font-style: italic; }

/* --- shell ------------------------------------------------ */

.wrap { max-width: 90rem; margin: 0 auto; padding-inline: var(--gutter); }
.wrap--narrow { max-width: 52rem; }

/* --- header ----------------------------------------------- */

.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 60;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  padding: 1.5rem var(--gutter);
  transition: background 0.4s var(--ease), padding 0.4s var(--ease), border-color 0.4s var(--ease);
  border-bottom: 1px solid transparent;
}
.site-header.is-stuck {
  background: rgba(12, 12, 13, 0.82);
  backdrop-filter: blur(14px) saturate(140%);
  -webkit-backdrop-filter: blur(14px) saturate(140%);
  border-bottom-color: var(--ink-line);
  padding-block: 1rem;
}

.wordmark {
  font-family: var(--serif);
  font-size: 1.375rem;
  letter-spacing: 0.32em;
  text-transform: uppercase;
  white-space: nowrap;
}
.wordmark span { color: var(--brass); }

.nav { display: flex; align-items: center; gap: 2rem; }
.nav a {
  font-size: 0.75rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--paper-dim);
  padding-block: 0.35rem;
  position: relative;
  transition: color 0.3s var(--ease);
}
.nav a::after {
  content: "";
  position: absolute;
  left: 0; right: 100%; bottom: 0;
  height: 1px;
  background: var(--brass);
  transition: right 0.4s var(--ease);
}
.nav a:hover, .nav a[aria-current="page"] { color: var(--paper); }
.nav a:hover::after, .nav a[aria-current="page"]::after { right: 0; }

.nav-toggle {
  display: none;
  background: none; border: 0; cursor: pointer;
  padding: 0.5rem; margin: -0.5rem;
  color: var(--paper);
}
.nav-toggle svg { width: 22px; height: 22px; }

@media (max-width: 46rem) {
  .nav-toggle { display: block; }
  .hero-sub { letter-spacing: 0.2em; font-size: 0.75rem; }

  /* The open menu is a full-screen overlay — the wordmark and the toggle
     have to sit above it, or there is no way to close the menu again. */
  .wordmark, .nav-toggle { position: relative; z-index: 2; }
  .nav {
    position: fixed;
    inset: 0;
    flex-direction: column;
    justify-content: center;
    gap: 2.25rem;
    background: rgba(12, 12, 13, 0.97);
    backdrop-filter: blur(20px);
    opacity: 0; pointer-events: none;
    transition: opacity 0.35s var(--ease);
  }
  .nav.is-open { opacity: 1; pointer-events: auto; }
  .nav-toggle .bar-top    { transition: transform 0.35s var(--ease); transform-origin: center; }
  .nav-toggle .bar-mid    { transition: opacity 0.2s var(--ease); }
  .nav-toggle .bar-bottom { transition: transform 0.35s var(--ease); transform-origin: center; }
  .nav-toggle[aria-expanded="true"] .bar-top    { transform: translateY(5px) rotate(45deg); }
  .nav-toggle[aria-expanded="true"] .bar-mid    { opacity: 0; }
  .nav-toggle[aria-expanded="true"] .bar-bottom { transform: translateY(-5px) rotate(-45deg); }
  .nav a { font-size: 1rem; }
}

/* --- hero ------------------------------------------------- */

.hero {
  position: relative;
  height: 100svh;
  min-height: 34rem;
  display: grid;
  place-items: end start;
  overflow: hidden;
}
.hero-media { position: absolute; inset: 0; }
.hero-media img {
  width: 100%; height: 100%;
  object-fit: cover;
  animation: drift 24s ease-in-out infinite alternate;
}
@keyframes drift { from { transform: scale(1.04); } to { transform: scale(1.13); } }

.hero-media::after {
  content: "";
  position: absolute; inset: 0;
  background:
    linear-gradient(to top, rgba(12,12,13,0.94) 0%, rgba(12,12,13,0.35) 45%, rgba(12,12,13,0.5) 100%);
}

.hero-body { position: relative; padding: 0 var(--gutter) clamp(3rem, 9vh, 6rem); max-width: 46rem; }
.hero h1 {
  font-size: clamp(3rem, 11vw, 8rem);
  letter-spacing: 0.02em;
  margin-bottom: 0.75rem;
}
.hero-sub {
  font-size: 0.8125rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--paper-dim);
}

.scroll-cue {
  position: absolute;
  right: var(--gutter); bottom: clamp(3rem, 9vh, 6rem);
  display: flex; align-items: center; gap: 0.75rem;
  font-size: 0.6875rem; letter-spacing: 0.2em; text-transform: uppercase;
  color: var(--paper-mute);
}
.scroll-cue i { display: block; width: 3.5rem; height: 1px; background: currentColor; transform-origin: left; animation: sweep 2.6s var(--ease) infinite; }
@keyframes sweep { 0%,100% { transform: scaleX(0.35); opacity: 0.4; } 50% { transform: scaleX(1); opacity: 1; } }
@media (max-width: 46rem) { .scroll-cue { display: none; } }

/* --- sections --------------------------------------------- */

.section { padding-block: clamp(4.5rem, 12vh, 9rem); }

.section-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 2rem;
  flex-wrap: wrap;
  padding-bottom: 2.5rem;
  margin-bottom: 3rem;
  border-bottom: 1px solid var(--ink-line);
}
.section-head h2 { font-size: clamp(1.875rem, 4.5vw, 3.25rem); }
.section-head p { margin: 0; color: var(--paper-mute); font-size: 0.875rem; max-width: 26rem; }

/* --- filters ---------------------------------------------- */

.filters { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-bottom: 1rem; }
.filter {
  font-family: var(--sans);
  font-size: 0.6875rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--paper-dim);
  background: none;
  border: 1px solid var(--ink-line);
  border-radius: 999px;
  padding: 0.6rem 1.2rem;
  cursor: pointer;
  transition: all 0.3s var(--ease);
}
.filter:hover { color: var(--paper); border-color: var(--paper-mute); }
.filter[aria-pressed="true"] { background: var(--brass); border-color: var(--brass); color: var(--ink); }

/* --- location folders --------------------------------------- */

.locations { display: flex; flex-direction: column; gap: 0.6rem; margin-bottom: 2.5rem; }
.loc-row { display: flex; flex-wrap: wrap; gap: 0.5rem; }
.loc-row--sub { padding-left: 1.25rem; margin-left: 0.3rem; border-left: 1px solid var(--ink-line); }
.filter--sub { font-size: 0.625rem; padding: 0.45rem 1rem; }

/* --- justified gallery ------------------------------------ */

.gallery { display: flex; flex-direction: column; gap: var(--gap, 14px); }
.gal-row { display: flex; gap: var(--gap, 14px); }

.tile {
  position: relative;
  display: block;
  overflow: hidden;
  background: var(--ink-soft);
  cursor: zoom-in;
  border: 0; padding: 0;
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}
.tile.is-in { opacity: 1; transform: none; }

.tile img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 0.9s var(--ease), filter 0.6s var(--ease);
  filter: saturate(0.92) brightness(0.94);
  -webkit-user-drag: none; user-select: none;
}
.tile:hover img, .tile:focus-visible img { transform: scale(1.045); filter: none; }

.tile-veil {
  position: absolute; inset: 0;
  display: flex; align-items: flex-end;
  padding: 1.25rem;
  background: linear-gradient(to top, rgba(12,12,13,0.85), rgba(12,12,13,0) 55%);
  opacity: 0;
  transition: opacity 0.45s var(--ease);
}
.tile:hover .tile-veil, .tile:focus-visible .tile-veil { opacity: 1; }
.tile-veil span {
  font-family: var(--serif);
  font-size: 1.0625rem;
  transform: translateY(6px);
  transition: transform 0.45s var(--ease);
}
.tile:hover .tile-veil span { transform: none; }

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

/* --- statement / stats ------------------------------------ */

.statement { text-align: center; max-width: 44rem; margin-inline: auto; }
.statement blockquote {
  margin: 0;
  font-family: var(--serif);
  font-style: italic;
  font-size: clamp(1.5rem, 3.6vw, 2.5rem);
  line-height: 1.35;
  color: var(--paper);
}

/* A single restrained credit line — the work should speak before the résumé. */
.credit {
  margin: 3rem 0 0;
  font-size: 0.6875rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--paper-mute);
}
.credit::before {
  content: "";
  display: block;
  width: 2.5rem;
  height: 1px;
  background: var(--ink-line);
  margin: 0 auto 1.75rem;
}
.credit a { color: var(--paper-dim); transition: color 0.3s var(--ease); }
.credit a:hover { color: var(--brass); }

.credit--start { text-align: left; margin-top: 3.5rem; }
.credit--start::before { margin-inline: 0 auto; margin-left: 0; }

/* --- about ------------------------------------------------ */

.about-grid { display: grid; grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr); gap: clamp(2rem, 6vw, 5rem); align-items: start; }
@media (max-width: 56rem) { .about-grid { grid-template-columns: 1fr; } }

.portrait { aspect-ratio: 4 / 5; background: var(--ink-soft); overflow: hidden; }
.portrait img { width: 100%; height: 100%; object-fit: cover; }
.portrait--empty { display: grid; place-items: center; border: 1px dashed var(--ink-line); color: var(--paper-mute); font-size: 0.75rem; letter-spacing: 0.12em; text-transform: uppercase; text-align: center; padding: 2rem; }

.prose p { max-width: var(--measure); color: var(--paper-dim); margin: 0 0 1.5rem; }
.prose p:first-of-type { color: var(--paper); font-size: 1.0625rem; }

/* --- footer ----------------------------------------------- */

.site-footer { border-top: 1px solid var(--ink-line); padding-block: 4rem 3rem; margin-top: clamp(4rem, 10vh, 8rem); }
.footer-top { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 2.5rem; padding-bottom: 3rem; }
.footer-cta h3 { font-size: clamp(1.5rem, 3.5vw, 2.25rem); margin-bottom: 0.5rem; }
.footer-cta p { margin: 0; color: var(--paper-mute); font-size: 0.875rem; }

.socials { display: flex; gap: 0.75rem; align-items: flex-start; }
.social {
  display: grid; place-items: center;
  width: 2.875rem; height: 2.875rem;
  border: 1px solid var(--ink-line);
  border-radius: 50%;
  color: var(--paper-dim);
  transition: all 0.35s var(--ease);
}
.social:hover { color: var(--ink); background: var(--brass); border-color: var(--brass); transform: translateY(-3px); }
.social svg { width: 18px; height: 18px; }

.footer-base { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 1rem; font-size: 0.75rem; color: var(--paper-mute); }
.footer-base a:hover { color: var(--paper); }

/* --- buttons ---------------------------------------------- */

.btn {
  display: inline-flex; align-items: center; gap: 0.6rem;
  font-family: var(--sans);
  font-size: 0.75rem; letter-spacing: 0.16em; text-transform: uppercase;
  padding: 0.95rem 1.75rem;
  border: 1px solid var(--brass);
  color: var(--brass);
  background: none;
  cursor: pointer;
  transition: all 0.35s var(--ease);
}
.btn:hover { background: var(--brass); color: var(--ink); }
.btn--solid { background: var(--brass); color: var(--ink); }
.btn--solid:hover { background: var(--brass-lift); border-color: var(--brass-lift); }
.btn--ghost { border-color: var(--ink-line); color: var(--paper-dim); }
.btn--ghost:hover { border-color: var(--paper-mute); background: none; color: var(--paper); }

/* --- lightbox --------------------------------------------- */

.lightbox {
  position: fixed; inset: 0; z-index: 100;
  display: grid;
  grid-template-rows: auto 1fr auto;
  background: #08080a;
  opacity: 0; pointer-events: none;
  transition: opacity 0.4s var(--ease);
}
.lightbox.is-open { opacity: 1; pointer-events: auto; }

.lb-bar { display: flex; align-items: center; justify-content: space-between; gap: 1rem; padding: 1.25rem var(--gutter); }
.lb-count { font-size: 0.75rem; letter-spacing: 0.16em; color: var(--paper-mute); font-variant-numeric: tabular-nums; }
.lb-close { background: none; border: 0; color: var(--paper-dim); cursor: pointer; padding: 0.5rem; display: grid; place-items: center; transition: color 0.3s var(--ease), transform 0.3s var(--ease); }
.lb-close:hover { color: var(--paper); transform: rotate(90deg); }
.lb-close svg { width: 22px; height: 22px; }

.lb-stage { position: relative; display: grid; place-items: center; padding-inline: clamp(1rem, 6vw, 5rem); min-height: 0; }
.lb-stage img {
  max-width: 100%; max-height: 100%;
  object-fit: contain;
  opacity: 0;
  transition: opacity 0.45s var(--ease);
  -webkit-user-drag: none; user-select: none;
}
.lb-stage img.is-ready { opacity: 1; }

.lb-nav {
  position: absolute; top: 50%; transform: translateY(-50%);
  display: grid; place-items: center;
  width: 3.25rem; height: 3.25rem;
  background: rgba(20,20,22,0.6);
  border: 1px solid var(--ink-line);
  border-radius: 50%;
  color: var(--paper-dim);
  cursor: pointer;
  transition: all 0.3s var(--ease);
}
.lb-nav:hover { color: var(--ink); background: var(--brass); border-color: var(--brass); }
.lb-prev { left: clamp(0.5rem, 2vw, 1.5rem); }
.lb-next { right: clamp(0.5rem, 2vw, 1.5rem); }
.lb-nav svg { width: 18px; height: 18px; }

.lb-foot { display: flex; flex-wrap: wrap; align-items: flex-end; justify-content: space-between; gap: 1.5rem; padding: 1.5rem var(--gutter) 2rem; }
.lb-meta h3 { font-size: clamp(1.25rem, 3vw, 1.875rem); margin-bottom: 0.35rem; }
.lb-meta p { margin: 0; color: var(--paper-mute); font-size: 0.8125rem; }
.lb-exif { display: flex; flex-wrap: wrap; gap: 1.25rem; margin-top: 0.75rem; font-size: 0.75rem; color: var(--paper-mute); font-variant-numeric: tabular-nums; }
.lb-exif span { display: flex; align-items: center; gap: 0.4rem; }
.lb-exif span::before { content: ""; width: 3px; height: 3px; border-radius: 50%; background: var(--brass); }

@media (max-width: 46rem) {
  .lb-foot { flex-direction: column; align-items: flex-start; }
  .lb-nav { width: 2.75rem; height: 2.75rem; }
}

/* --- print panel ------------------------------------------ */

.print-panel {
  position: fixed; inset: 0; z-index: 110;
  display: grid; place-items: center;
  padding: var(--gutter);
  background: rgba(8,8,9,0.85);
  backdrop-filter: blur(10px);
  opacity: 0; pointer-events: none;
  transition: opacity 0.35s var(--ease);
}
.print-panel.is-open { opacity: 1; pointer-events: auto; }
.print-card {
  width: min(30rem, 100%);
  max-height: 88svh;
  overflow-y: auto;
  background: var(--ink-soft);
  border: 1px solid var(--ink-line);
  padding: clamp(1.75rem, 4vw, 2.75rem);
  transform: translateY(14px);
  transition: transform 0.4s var(--ease);
}
.print-panel.is-open .print-card { transform: none; }
.print-card h3 { font-size: 1.75rem; margin-bottom: 0.35rem; }
.print-card > p { color: var(--paper-mute); font-size: 0.875rem; margin: 0 0 1.75rem; }

.size-list { display: flex; flex-direction: column; gap: 0.75rem; margin-bottom: 1.75rem; }
.size-row {
  display: flex; align-items: center; justify-content: space-between; gap: 1rem;
  padding: 1rem 1.25rem;
  border: 1px solid var(--ink-line);
  transition: border-color 0.3s var(--ease);
}
.size-row:hover { border-color: var(--paper-mute); }
.size-row b { font-weight: 400; font-size: 0.9375rem; }
.size-row .price { font-family: var(--serif); font-size: 1.25rem; color: var(--brass); }
.size-row .btn { padding: 0.6rem 1.1rem; font-size: 0.6875rem; }

.print-note { font-size: 0.75rem; color: var(--paper-mute); line-height: 1.6; border-top: 1px solid var(--ink-line); padding-top: 1.25rem; }

/* --- utility ---------------------------------------------- */

.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;
}
body.is-locked { overflow: hidden; }

.reveal { opacity: 0; transform: translateY(22px); transition: opacity 0.8s var(--ease), transform 0.8s var(--ease); }
.reveal.is-in { opacity: 1; transform: none; }

.empty-note {
  border: 1px dashed var(--ink-line);
  padding: 3rem 2rem;
  text-align: center;
  color: var(--paper-mute);
  font-size: 0.875rem;
}