/* ============================================================
   ATELIER LUX — style.css
   Plain CSS, mobile-first. Palette & type scale live in :root.
   ============================================================ */

:root {
  /* ---- Palette (light) ------------------------------------- */
  --color-bg: #F5F2ED;          /* warm off-white base */
  --color-panel: #EDE8E0;       /* secondary panels */
  --color-panel-2: #E6DFD5;     /* subtle intermediate */
  --color-gold: #A8862F;        /* antique gold — graphical accents */
  --color-gold-dim: #8A6E28;    /* deeper gold — small-caps text / labels */
  --color-text: #1F1B16;        /* near-black warm ink */
  --color-muted: #6B6157;       /* secondary text */
  --color-line: rgba(168, 134, 47, 0.35); /* hairline gold */
  --color-error: #A33B28;

  /* Soft warm shadow for elevated surfaces on the light ground */
  --shadow-soft: 0 2px 24px rgba(31, 27, 22, 0.08);
  --shadow-lift: 0 12px 48px rgba(31, 27, 22, 0.14);

  /* ---- Typography ------------------------------------------- */
  --font-serif: "Cormorant Garamond", "Times New Roman", Georgia, serif;
  --font-sans: "Inter", "Helvetica Neue", Arial, system-ui, sans-serif;

  /* Fluid type scale */
  --fs-xs: 0.72rem;
  --fs-sm: 0.83rem;
  --fs-base: 1rem;
  --fs-md: clamp(1.05rem, 1rem + 0.4vw, 1.2rem);
  --fs-lg: clamp(1.3rem, 1.1rem + 1vw, 1.7rem);
  --fs-xl: clamp(1.7rem, 1.3rem + 2vw, 2.6rem);
  --fs-2xl: clamp(2.2rem, 1.6rem + 3vw, 3.4rem);
  --fs-hero: clamp(2.8rem, 1.8rem + 6vw, 6rem);

  --lh-tight: 1.15;
  --lh-body: 1.7;

  /* ---- Spacing / layout ----------------------------------- */
  --space-section: clamp(5rem, 3rem + 9vw, 10rem);
  --wrap-max: 1180px;
  --wrap-narrow: 640px;
  --gutter: clamp(1.25rem, 0.5rem + 4vw, 4rem);

  /* ---- Motion -------------------------------------------- */
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --dur-slow: 900ms;
}

/* ============================================================
   RESET / BASE
   ============================================================ */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background-color: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-sans);
  font-size: var(--fs-base);
  line-height: var(--lh-body);
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

h1, h2, h3 {
  font-family: var(--font-serif);
  font-weight: 500;
  line-height: var(--lh-tight);
  margin: 0;
}

p {
  margin: 0;
}

a {
  color: inherit;
  text-decoration: none;
}

button {
  font: inherit;
  color: inherit;
  cursor: pointer;
}

/* ---- Focus ring (visible gold) --------------------------- */
/* deeper gold clears 3:1 against the light ground with headroom (~4.3:1) */
:focus-visible {
  outline: 2px solid var(--color-gold-dim);
  outline-offset: 3px;
  border-radius: 1px;
}

/* ============================================================
   HELPERS
   ============================================================ */
/* Keep anchored section titles clear of the sticky header */
section[id],
[id] {
  scroll-margin-top: 84px;
}

.wrap {
  width: 100%;
  max-width: var(--wrap-max);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.wrap--narrow {
  max-width: var(--wrap-narrow);
}

.sr-only,
.skip-link {
  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:focus {
  position: fixed;
  top: 1rem;
  left: 1rem;
  width: auto;
  height: auto;
  clip: auto;
  margin: 0;
  padding: 0.75rem 1.25rem;
  background: var(--color-panel);
  border: 1px solid var(--color-gold-dim);
  color: var(--color-text);
  z-index: 200;
}

/* Small-caps gold label */
.label {
  font-family: var(--font-sans);
  font-size: var(--fs-xs);
  font-weight: 500;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  /* deeper gold: small-caps label text needs more contrast on light ground */
  color: var(--color-gold-dim);
  margin: 0 0 1.5rem;
}

/* Thin gold rule */
.hairline {
  display: block;
  width: 72px;
  height: 1px;
  background: var(--color-gold);
  margin: 1.75rem 0;
}

/* Reveal-on-scroll base state */
.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity var(--dur-slow) var(--ease), transform var(--dur-slow) var(--ease);
  will-change: opacity, transform;
}

.reveal.is-visible {
  opacity: 1;
  transform: none;
}

/* ============================================================
   BUTTONS — always thin gold outline, never loud fills
   ============================================================ */
.btn {
  display: inline-block;
  font-family: var(--font-sans);
  font-size: var(--fs-sm);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-text);
  padding: 1rem 2rem;
  border: 1px solid var(--color-gold-dim);
  background: transparent;
  transition: background-color 400ms var(--ease), color 400ms var(--ease);
}

.btn:hover,
.btn:focus-visible {
  /* subtle warm wash; keep the label at full ink contrast on light ground */
  background-color: rgba(168, 134, 47, 0.14);
  color: var(--color-text);
}

.btn--ghost {
  border-color: var(--color-gold-dim);
  color: var(--color-muted);
}

.btn--ghost:hover,
.btn--ghost:focus-visible {
  border-color: var(--color-gold-dim);
  color: var(--color-text);
}

/* ============================================================
   HEADER
   ============================================================ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(245, 242, 237, 0.85);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--color-line);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 64px;
  flex-wrap: wrap;
}

.wordmark__name {
  font-family: var(--font-serif);
  font-size: var(--fs-md);
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--color-text);
}

.site-nav {
  display: none;
  gap: 2rem;
  font-size: var(--fs-xs);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-muted);
}

.site-nav a:hover,
.site-nav a:focus-visible {
  color: var(--color-gold-dim);
}

.lang-toggle {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: var(--fs-xs);
  letter-spacing: 0.18em;
}

.lang-toggle__btn {
  background: none;
  border: none;
  padding: 0.25rem;
  color: var(--color-muted);
  letter-spacing: inherit;
}

.lang-toggle__btn[aria-pressed="true"] {
  color: var(--color-gold-dim);
}

.lang-toggle__sep {
  color: var(--color-gold-dim);
}

@media (min-width: 768px) {
  .site-nav { display: flex; }
}

/* ============================================================
   1. HERO
   ============================================================ */
.hero {
  min-height: 100vh;
  min-height: 100svh;
  display: flex;
  align-items: center;
  padding-block: clamp(4rem, 8vh, 8rem);
}

.hero__inner {
  display: grid;
  gap: clamp(2.5rem, 6vw, 5rem);
  align-items: center;
}

.hero__title {
  font-size: var(--fs-hero);
  font-weight: 500;
  letter-spacing: 0.16em;
  margin-left: 0.16em; /* optical: compensate trailing letter-spacing */
}

.hero__lede {
  color: var(--color-muted);
  font-size: var(--fs-md);
  max-width: 46ch;
  margin-bottom: 2.5rem;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

.hero__figure {
  margin: 0;
}

.hero__figure img {
  width: 100%;
  object-fit: cover;
  border: 1px solid var(--color-line);
}

@media (min-width: 900px) {
  .hero__inner {
    grid-template-columns: 1fr 0.85fr;
  }
  .hero__figure {
    justify-self: end;
    max-width: 460px;
  }
}

/* ============================================================
   2. PHILOSOPHY
   ============================================================ */
.philosophy {
  padding-block: var(--space-section);
  background: var(--color-panel-2);
  border-block: 1px solid var(--color-line);
}

.philosophy__inner {
  text-align: center;
}

.philosophy__body {
  font-family: var(--font-serif);
  font-size: var(--fs-lg);
  font-weight: 400;
  line-height: 1.55;
  color: var(--color-text);
}

/* ============================================================
   3. GALLERY
   ============================================================ */
.gallery {
  padding-block: var(--space-section);
}

.section-head {
  margin-bottom: clamp(3rem, 6vw, 5rem);
}

.section-head h2 {
  font-size: var(--fs-2xl);
}

.gallery__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(3rem, 7vw, 6rem);
}

@media (min-width: 768px) {
  .gallery__grid {
    grid-template-columns: 1fr 1fr;
    gap: clamp(3rem, 5vw, 6rem) clamp(2rem, 4vw, 4rem);
  }
  /* Asymmetric rhythm: nudge every 2nd column downward */
  .gallery__tile:nth-child(even) {
    transform: translateY(clamp(2rem, 6vw, 5rem));
  }
}

.gallery__tile {
  position: relative;
  text-align: left;
  width: 100%;
  color: inherit;
}

.gallery__figure {
  margin: 0;
  overflow: hidden;
  background: var(--color-panel);
  padding: clamp(1.5rem, 4vw, 3rem);
  border: 1px solid var(--color-line);
  /* barely-there warm lift so the panel sits above the light page */
  box-shadow: var(--shadow-soft);
}

.gallery__figure img {
  width: 100%;
  /* light artwork on a light panel needs an edge to read against */
  border: 1px solid var(--color-line);
  transition: transform var(--dur-slow) var(--ease);
}

.gallery__tile:hover .gallery__figure img,
.gallery__tile:focus-within .gallery__figure img {
  transform: scale(1.02);
}

.gallery__caption {
  padding-top: 1.5rem;
}

.gallery__title {
  font-size: var(--fs-lg);
  font-weight: 500;
  margin: 0;
}

/* Real button, styled as plain serif text; stretched to cover the card */
.gallery__open {
  background: none;
  border: 0;
  padding: 0;
  margin: 0;
  font: inherit;
  color: inherit;
  text-align: left;
  letter-spacing: inherit;
}

.gallery__open:hover,
.gallery__tile:focus-within .gallery__open {
  color: var(--color-gold-dim);
}

.gallery__open::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
}

.gallery__caption .hairline {
  margin: 1rem 0;
  width: 48px;
}

.gallery__dims {
  font-size: var(--fs-xs);
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--color-muted);
}

.gallery__status {
  margin-top: 3rem;
  color: var(--color-muted);
  font-size: var(--fs-sm);
  text-align: center;
}

.gallery__status[hidden] { display: none; }

/* ============================================================
   4. CERTIFICATE OF AUTHENTICITY
   ============================================================ */
.certificate {
  padding-block: var(--space-section);
}

.certificate__inner {
  border: 1px solid var(--color-line);
  padding: clamp(2.5rem, 6vw, 4.5rem) clamp(1.75rem, 5vw, 4rem);
  text-align: center;
}

.certificate__inner h2 {
  font-size: var(--fs-xl);
  margin-bottom: 3rem;
}

.certificate__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 3rem;
}

.certificate__list h3 {
  font-size: var(--fs-md);
  margin: 1.25rem 0 0.5rem;
}

.certificate__list p {
  color: var(--color-muted);
  font-size: var(--fs-sm);
  max-width: 34ch;
  margin-inline: auto;
}

.certificate__icon {
  display: inline-flex;
  /* deeper gold: thin line-art strokes need >3:1 on the light ground */
  color: var(--color-gold-dim);
}

.certificate__icon svg {
  width: 44px;
  height: 44px;
}

@media (min-width: 768px) {
  .certificate__list {
    grid-template-columns: repeat(3, 1fr);
    gap: 2.5rem;
  }
}

/* ============================================================
   5. ABOUT
   ============================================================ */
.about {
  padding-block: var(--space-section);
  background: var(--color-panel-2);
  border-block: 1px solid var(--color-line);
}

.about__inner h2 {
  font-size: var(--fs-xl);
  margin-bottom: 1.75rem;
}

.about__body {
  color: var(--color-muted);
  font-size: var(--fs-md);
}

/* ============================================================
   6. CONTACT
   ============================================================ */
.contact {
  padding-block: var(--space-section);
}

.contact__inner h2 {
  font-size: var(--fs-xl);
  margin-bottom: 1.5rem;
}

.contact__intro {
  color: var(--color-muted);
  font-size: var(--fs-sm);
  margin-bottom: 3rem;
}

.form__row {
  margin-bottom: 2rem;
}

.form label {
  display: block;
  font-size: var(--fs-xs);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-muted);
  margin-bottom: 0.75rem;
}

.form input,
.form select,
.form textarea {
  width: 100%;
  background: var(--color-panel);
  /* deeper gold: a field boundary must clear 3:1 against the page */
  border: 1px solid var(--color-gold-dim);
  color: var(--color-text);
  font-family: var(--font-sans);
  font-size: var(--fs-base);
  padding: 0.9rem 1rem;
  border-radius: 0;
}

.form textarea {
  resize: vertical;
}

.form input:focus,
.form select:focus,
.form textarea:focus {
  /* keep the shared gold :focus-visible ring — do not suppress the outline */
  border-color: var(--color-gold-dim);
}

.form input[aria-invalid="true"],
.form textarea[aria-invalid="true"] {
  border-color: var(--color-error);
}

.form__error {
  display: block;
  min-height: 1.2em;
  margin-top: 0.5rem;
  font-size: var(--fs-xs);
  letter-spacing: 0.04em;
  color: var(--color-error);
}

/* Honeypot — visually hidden, still in the DOM for bots */
.form__hp {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.form__feedback {
  margin-top: 1.5rem;
  font-size: var(--fs-sm);
  padding: 1rem 1.25rem;
  border: 1px solid;
}

.form__feedback[hidden] { display: none; }

.form__feedback--success {
  border-color: var(--color-gold-dim);
  color: var(--color-gold-dim);
}

.form__feedback--error {
  border-color: var(--color-error);
  color: var(--color-error);
}

/* ============================================================
   7. FOOTER
   ============================================================ */
.site-footer {
  padding-block: clamp(3rem, 6vw, 5rem);
  border-top: 1px solid var(--color-line);
  background: var(--color-panel-2);
}

.site-footer__inner {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  align-items: center;
  text-align: center;
}

.site-footer__links {
  display: flex;
  flex-wrap: wrap;
  gap: 1.75rem;
  justify-content: center;
  font-size: var(--fs-xs);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-muted);
}

.site-footer__links a:hover,
.site-footer__links a:focus-visible {
  color: var(--color-gold-dim);
}

.site-footer__mark {
  font-family: var(--font-serif);
  font-size: var(--fs-md);
  letter-spacing: 0.34em;
  text-transform: uppercase;
  color: var(--color-gold-dim);
}

.site-footer__copy {
  font-size: var(--fs-xs);
  letter-spacing: 0.1em;
  color: var(--color-muted);
}

/* ============================================================
   LIGHTBOX MODAL
   ============================================================ */
.modal {
  position: fixed;
  inset: 0;
  z-index: 300;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: clamp(1rem, 4vw, 3rem);
}

.modal[hidden] { display: none; }

.modal__backdrop {
  position: absolute;
  inset: 0;
  /* light frosted scrim, not a dark one */
  background: rgba(245, 242, 237, 0.94);
  -webkit-backdrop-filter: blur(3px);
  backdrop-filter: blur(3px);
}

.modal__panel {
  position: relative;
  z-index: 1;
  background: var(--color-panel);
  border: 1px solid var(--color-line);
  /* soft warm lift so the light panel separates from the light scrim */
  box-shadow: var(--shadow-lift);
  max-width: 1080px;
  width: 100%;
  max-height: 92vh;
  overflow-y: auto;
  display: grid;
  grid-template-columns: 1fr;
}

.modal__close {
  position: absolute;
  top: 0.75rem;
  right: 0.75rem;
  z-index: 2;
  background: rgba(245, 242, 237, 0.8);
  border: 1px solid var(--color-gold-dim);
  color: var(--color-text);
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
}

.modal__close:hover,
.modal__close:focus-visible {
  color: var(--color-gold-dim);
  border-color: var(--color-gold-dim);
}

.modal__close svg { width: 20px; height: 20px; }

.modal__media {
  background: var(--color-bg);
  padding: clamp(1.5rem, 5vw, 3.5rem);
  display: flex;
  align-items: center;
  justify-content: center;
}

.modal__media img {
  width: 100%;
  height: auto;
  object-fit: contain;
  max-height: 60vh;
  /* edge so light artwork reads against the light mat */
  border: 1px solid var(--color-line);
}

.modal__details {
  padding: clamp(1.75rem, 5vw, 3.5rem);
}

.modal__title {
  font-size: var(--fs-xl);
}

.modal__meta {
  margin: 0 0 2.5rem;
  display: grid;
  gap: 1.5rem;
}

.modal__meta dt {
  margin-bottom: 0.5rem;
}

.modal__meta dd {
  margin: 0;
  color: var(--color-muted);
  font-size: var(--fs-sm);
}

#modal-symbolism {
  line-height: 1.7;
}

@media (min-width: 820px) {
  .modal__panel {
    grid-template-columns: 1.1fr 1fr;
  }
  .modal__media img { max-height: 76vh; }
}

/* ============================================================
   REDUCED MOTION
   ============================================================ */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }

  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }

  .gallery__tile:hover .gallery__figure img,
  .gallery__tile:focus-visible .gallery__figure img {
    transform: none;
  }
}