/* ═══════════════════════════════════════════════════════════════
   PRIVÉ Brand Guidelines — styles.css
   ═══════════════════════════════════════════════════════════════ */

/* ── Web font imports ────────────────────────────────────────── */
@import url('https://db.onlinewebfonts.com/c/a0f017a5110893520baec6c23521c330?family=EngraversGothicBold+W08+Rg');
@import url('https://db.onlinewebfonts.com/c/19560807c484bbbfcd37de7a0011a829?family=Canela-Light');
@import url('https://db.onlinewebfonts.com/c/4a24899e94d8236f671c1090cd9e068c?family=Canela-Regular');
@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+SC:wght@400;500&family=Noto+Serif+SC:wght@300&display=swap');

/* ── CSS custom properties ───────────────────────────────────── */
:root {
  /* Colours */
  --slate:        #2E4755;
  --slate-10:     rgba(46, 71, 85, 0.1);
  --offwhite:     #FAFBF5;
  --grey:         #707F87;
  --warm-taupe:   #685F5D;
  --desert-sand:  #A38A74;
  --deep-brown:   #672F20;
  --surface:      #F8F9FA;
  --surface-alt:  #FAFBFC;
  --white:        #ffffff;

  /* Font stacks */
  --font-en-head:     'EngraversGothicBold W08 Rg', 'Engravers Gothic', serif;
  --font-en-body:     'Canela-Light', 'Cormorant Garamond', serif;
  --font-en-body-med: 'Canela-Regular', 'Cormorant Garamond', serif;

  /* ZH stacks: English font first so ASCII/numbers fall to Engravers Gothic;
     CJK glyphs fall through to Noto. */
  --font-zh-head:     'EngraversGothicBold W08 Rg', 'Engravers Gothic', 'Noto Sans SC', sans-serif;
  --font-zh-body:     'Canela-Light', 'Cormorant Garamond', 'Noto Serif SC', serif;
  --font-zh-body-med: 'Canela-Regular', 'Cormorant Garamond', 'Noto Serif SC', serif;

  /* Layout */
  --sidebar-w: 320px;
  --header-h:  72px;
  --max-w:     1600px;
}

/* ── Reset ───────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 16px; }
body {
  background: var(--offwhite);
  color: var(--slate);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
a   { text-decoration: none; color: inherit; }
img { display: block; max-width: 100%; }
ul  { list-style: none; }
button { border: none; background: none; cursor: pointer; }
table { border-collapse: collapse; }

/* ── Sidebar ─────────────────────────────────────────────────── */
.sidebar {
  position: fixed;
  inset: 0 auto 0 0;
  width: var(--sidebar-w);
  background: var(--offwhite);
  border-right: 1px solid var(--slate-10);
  display: flex;
  flex-direction: column;
  z-index: 50;
  overflow: hidden;
}
.sidebar-top    { padding: 2rem; flex-shrink: 0; }
.sidebar-nav    { flex: 1; overflow-y: auto; padding: 1rem 1.5rem; }
.sidebar-bottom {
  flex-shrink: 0;
  padding: 0.9375rem 2rem;
  border-top: 1px solid var(--slate-10);
}

/* ── Mobile header ───────────────────────────────────────────── */
.mobile-header {
  display: none;
  position: fixed;
  inset: 0 0 auto 0;
  height: var(--header-h);
  background: var(--offwhite);
  border-bottom: 1px solid var(--slate-10);
  align-items: center;
  justify-content: space-between;
  padding: 0 1.5rem;
  z-index: 40;
}
.menu-toggle { color: var(--slate); padding: 0.5rem; }

/* ── Mobile full-screen menu ─────────────────────────────────── */
.mobile-menu {
  position: fixed;
  inset: var(--header-h) 0 0 0;
  background: var(--offwhite);
  display: flex;
  flex-direction: column;
  z-index: 30;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 0.3s;
  overflow: hidden;
}
.mobile-menu.open {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}
.mobile-nav       { flex: 1; overflow-y: auto; padding: 1.25rem 1.5rem; }
.mobile-lang-wrap {
  flex-shrink: 0;
  padding: 0.9375rem 1.5rem;
  border-top: 1px solid var(--slate-10);
}

/* ── Main content ────────────────────────────────────────────── */
.main-content-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 3rem 1.5rem;
}

/* ── Footer ──────────────────────────────────────────────────── */
.site-footer  { border-top: 1px solid var(--slate-10); margin-top: 3rem; }
.footer-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 1.5rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.footer-brand {
  font-family: var(--font-en-head);
  font-size: 0.625rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--grey);
}
.footer-copy {
  font-family: var(--font-en-head);
  font-size: 0.625rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--grey);
}
[data-locale="zh"] .footer-brand {
  font-family: var(--font-zh-head);
  letter-spacing: 0.8em;
  font-weight: 500;
}

/* ── Wordmark ─────────────────────────────────────────────────── */
.wordmark {
  font-family: var(--font-en-head) !important;
  letter-spacing: 0.45em;
  text-transform: uppercase;
  color: var(--slate);
  display: inline-block;
  font-size: 1.5rem;
}
.wordmark.lg { font-size: 1.5rem; }
.wordmark.inverted { color: var(--white) !important; }

/* ── Navigation ──────────────────────────────────────────────── */
.nav-item,
.nav-parent-row {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 0.5rem 1rem;
  color: var(--grey);
  transition: color 0.15s;
  border-radius: 0.25rem;
}
.nav-item:hover { color: var(--slate); }
.nav-item.active { color: var(--slate); }

.nav-parent-row { cursor: default; }
.nav-parent-row.child-active { color: var(--slate); }

.nav-number {
  font-family: var(--font-en-head);
  font-size: 1rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  flex-shrink: 0;
}
.nav-label {
  font-family: var(--font-en-head);
  font-size: 1rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
}
[data-locale="zh"] .nav-label {
  font-family: var(--font-zh-head);
  letter-spacing: 0.8em;
  font-weight: 500;
}

.nav-children {
  margin-left: 2rem;
  margin-bottom: 0.375rem;
}
.nav-child {
  display: block;
  padding: 0.375rem 1rem;
  font-family: var(--font-en-head);
  font-size: 0.875rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--grey);
  transition: color 0.15s;
  border-radius: 0.25rem;
}
.nav-child:hover { color: var(--slate); }
.nav-child.active { color: var(--slate); }
[data-locale="zh"] .nav-child {
  font-family: var(--font-zh-head);
  letter-spacing: 0.3em;
}

/* Mobile nav spacing */
.mobile-nav .nav-item,
.mobile-nav .nav-parent-row { padding: 0.75rem 1rem; }
.mobile-nav .nav-child { padding: 0.5rem 1rem; }

/* ── Language selector ───────────────────────────────────────── */
.lang-selector { position: relative; }
.lang-trigger {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  color: var(--grey);
  padding: 0.5rem;
  margin-left: -0.5rem;
  border-radius: 0.25rem;
  transition: color 0.15s;
  font-family: var(--font-en-head);
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
}
.lang-trigger:hover { color: var(--slate); }
.lang-trigger svg { flex-shrink: 0; }
.lang-dropdown {
  position: absolute;
  bottom: calc(100% + 0.5rem);
  left: 0;
  background: var(--white);
  border: 1px solid var(--slate-10);
  box-shadow: 0 2px 8px rgba(0,0,0,0.06);
  border-radius: 0.25rem;
  min-width: 160px;
  overflow: hidden;
  display: none;
  z-index: 200;
}
.lang-dropdown.open { display: block; }
.lang-option {
  display: block;
  width: 100%;
  text-align: left;
  padding: 0.625rem 1rem;
  font-size: 0.75rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--grey);
  transition: color 0.15s, background 0.15s;
}
.lang-option:hover,
.lang-option.current {
  color: var(--slate);
  background: var(--offwhite);
}

/* ── Typography ──────────────────────────────────────────────── */
.page-title {
  font-family: var(--font-en-head);
  font-size: 1.5rem;
  letter-spacing: 0.45em;
  text-transform: uppercase;
  color: var(--slate);
  line-height: 1.4;
}
[data-locale="zh"] .page-title {
  font-family: var(--font-zh-head);
  font-size: 18px;
  letter-spacing: 1.0em;
  font-weight: 500;
}

.page-num {
  color: var(--grey);
  margin-right: 1.5rem;
  letter-spacing: 0.1em;
  font-family: var(--font-en-head);
}

.sec-head {
  font-family: var(--font-en-head);
  font-size: 1.125rem;
  letter-spacing: 0.35em;
  text-transform: uppercase;
  color: var(--slate);
  margin-bottom: 2rem;
}
[data-locale="zh"] .sec-head {
  font-family: var(--font-zh-head);
  font-size: 1rem;
  letter-spacing: 0.8em;
  font-weight: 500;
}

.sub-head {
  font-family: var(--font-en-head);
  font-size: 1rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--slate);
  margin-bottom: 1rem;
}
[data-locale="zh"] .sub-head {
  font-family: var(--font-zh-head);
  letter-spacing: 0.8em;
  font-weight: 500;
}

.body {
  font-family: var(--font-en-body);
  font-size: 1.125rem;
  line-height: 1.625;
  color: var(--slate);
  letter-spacing: 0.035em;
}
[data-locale="zh"] .body {
  font-family: var(--font-zh-body);
  font-size: 17px;
  letter-spacing: 0.07em;
}

.body-med {
  font-family: var(--font-en-body-med);
  font-size: 1.125rem;
  line-height: 1.625;
  color: var(--slate);
  letter-spacing: 0.035em;
}
[data-locale="zh"] .body-med {
  font-family: var(--font-zh-body-med);
  font-size: 17px;
  letter-spacing: 0.07em;
}

.tbl-head {
  font-family: var(--font-en-head);
  font-size: 0.875rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--slate);
}
[data-locale="zh"] .tbl-head {
  font-family: var(--font-zh-head);
  letter-spacing: 0.8em;
  font-weight: 500;
}

.hex-code,
.always-en {
  font-family: var(--font-en-head) !important;
  letter-spacing: 0.25em !important;
}

/* ── Numbered list ───────────────────────────────────────────── */
.prin-list        { list-style: none; }
.prin-list li     { display: flex; gap: 1rem; margin-bottom: 1.25rem; }
.prin-list li:last-child { margin-bottom: 0; }
.list-num {
  color: var(--grey);
  flex-shrink: 0;
  font-family: var(--font-en-body);
  font-size: 1.125rem;
  line-height: 1.625;
}
[data-locale="zh"] .list-num {
  font-family: var(--font-zh-body);
  font-size: 17px;
}

/* ── Tables ──────────────────────────────────────────────────── */
.data-table {
  width: 100%;
  border-top: 1px solid var(--slate-10);
  border-left: 1px solid var(--slate-10);
}
.data-table th,
.data-table td {
  border-bottom: 1px solid var(--slate-10);
  border-right: 1px solid var(--slate-10);
  padding: 0.75rem 1rem;
  text-align: left;
  vertical-align: top;
}
.data-table thead tr { background: var(--surface); }
.data-table tbody tr { background: var(--white); }

/* ── Vocab grid table ────────────────────────────────────────── */
.vocab-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  border-top:  1px solid var(--slate-10);
  border-left: 1px solid var(--slate-10);
  max-width: 48rem;
}
.vocab-cell {
  border-bottom: 1px solid var(--slate-10);
  border-right:  1px solid var(--slate-10);
  padding: 0.75rem 1rem;
}
.vocab-cell.hdr  { background: var(--surface); }
.vocab-cell.data { background: var(--white); }
.vocab-avoid { color: var(--grey) !important; }

/* ── Spacing helpers ─────────────────────────────────────────── */
.mb-4  { margin-bottom: 1rem; }
.mb-6  { margin-bottom: 1.5rem; }
.mb-8  { margin-bottom: 2rem; }
.mb-12 { margin-bottom: 3rem; }
.mb-16 { margin-bottom: 4rem; }
.mt-4  { margin-top: 1rem; }
.mt-8  { margin-top: 2rem; }
.mt-16 { margin-top: 4rem; }
.pt-16 { padding-top: 4rem; }

/* ── Dividers ────────────────────────────────────────────────── */
.div-soft { border-top: 1px solid var(--slate-10); }
.div-bold { border-top: 1px solid var(--slate); }

/* ── Section blocks ──────────────────────────────────────────── */
.sec { margin-bottom: 4rem; }
.sec:last-child { margin-bottom: 0; }

/* ── Two-column grid ─────────────────────────────────────────── */
.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem 6rem;
}

/* ── Home page ───────────────────────────────────────────────── */
.home-wrap   { display: flex; min-height: 100vh; }
.home-spacer { width: var(--sidebar-w); flex-shrink: 0; }
.home-hero   {
  flex: 1;
  min-height: 100vh;
  background-size: cover;
  background-position: center;
  position: relative;
  display: flex;
  align-items: center;
}
.home-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(46,71,85,0.3);
}
.home-content {
  position: relative;
  z-index: 1;
  padding: 2rem 4rem;
  max-width: 800px;
}
.home-title {
  font-family: var(--font-en-head);
  font-size: 2.25rem;
  letter-spacing: 0.45em;
  text-transform: uppercase;
  color: white;
  margin-bottom: 2rem;
  line-height: 1.3;
}
[data-locale="zh"] .home-title {
  font-family: var(--font-zh-head);
  letter-spacing: 0.8em;
  font-weight: 500;
}
.home-subtitle {
  font-family: var(--font-en-body);
  font-size: 1.25rem;
  line-height: 1.625;
  color: rgba(255,255,255,0.9);
  letter-spacing: 0.035em;
  max-width: 600px;
}
[data-locale="zh"] .home-subtitle {
  font-family: var(--font-zh-body);
  letter-spacing: 0.07em;
}
.home-version {
  font-family: var(--font-en-head) !important;
  font-size: 0.875rem;
  letter-spacing: 0.2em !important;
  text-transform: uppercase;
  color: rgba(255,255,255,0.6);
  margin-top: 1.5rem;
}

/* ── Philosophy image (page 1) ───────────────────────────────── */
.philo-wrap {
  position: relative;
  width: 100%;
  overflow: hidden;
  height: 66vh;
}
.philo-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.philo-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0,0,0,0.4), transparent);
  display: flex;
  align-items: center;
  justify-content: center;
}
.philo-quote {
  font-family: var(--font-en-body);
  font-size: 1.5rem;
  line-height: 1.625;
  color: white;
  font-style: italic;
  padding: 2rem 4rem;
  text-align: center;
  max-width: 48rem;
  letter-spacing: 0.035em;
}
[data-locale="zh"] .philo-quote {
  font-family: var(--font-zh-body);
  letter-spacing: 0.07em;
}

/* ── Values (page 1) ─────────────────────────────────────────── */
.value-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem 4rem;
  padding-top: 2rem;
  border-top: 1px solid var(--slate);
}
.value-row.mb { margin-bottom: 3rem; }
.value-title {
  font-family: var(--font-en-body-med);
  font-size: 1.5rem;
  line-height: 1.3;
  color: var(--slate);
}
[data-locale="zh"] .value-title {
  font-family: var(--font-zh-body-med);
}

/* ── Logo page ───────────────────────────────────────────────── */
.logo-panels {
  display: grid;
  grid-template-columns: 1fr 1fr;
}
.logo-panel {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 400px;
  padding: 4rem;
}
.logo-panel.light { background: var(--white); }
.logo-panel.dark  { background: var(--slate); }
.logo-panel img   { width: 291px; max-width: 90%; height: auto; }
.logo-wm-large {
  font-family: var(--font-en-head) !important;
  font-size: 3.45rem;
  letter-spacing: 0.45em;
  text-transform: uppercase;
  color: var(--white);
  white-space: nowrap;
}
.location-row {
  display: flex;
  align-items: baseline;
  gap: 2rem;
  margin-bottom: 2rem;
}
.location-wm {
  font-family: var(--font-en-head) !important;
  font-size: 2.76rem;
  letter-spacing: 0.45em;
  text-transform: uppercase;
  color: var(--slate);
  white-space: nowrap;
}
.location-name {
  font-family: var(--font-en-head);
  font-size: 2.76rem;
  letter-spacing: 0.45em;
  text-transform: uppercase;
  color: var(--slate);
  white-space: nowrap;
  font-weight: 400;
}

/* ── Colour swatches ─────────────────────────────────────────── */
.palette-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
}
.swatch-wrap { }
.swatch {
  aspect-ratio: 4/3;
  display: flex;
  align-items: center;
  justify-content: center;
}
.swatch-label {
  font-family: var(--font-en-head) !important;
  font-size: 0.75rem;
  letter-spacing: 0.25em !important;
  text-transform: uppercase;
}
.swatch-info { margin-top: 1rem; padding: 0 1rem; }
.swatch-name {
  font-size: 0.875rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--slate);
  font-family: var(--font-en-head);
}
[data-locale="zh"] .swatch-name {
  font-family: var(--font-zh-head);
  letter-spacing: 0.8em;
  font-weight: 500;
}
.swatch-usage {
  font-size: 0.75rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--slate);
  margin-top: 0.375rem;
  font-family: var(--font-en-head);
}
[data-locale="zh"] .swatch-usage {
  font-family: var(--font-zh-head);
  letter-spacing: 0.3em;
  font-weight: 500;
  margin-top: 0.75rem;
}

/* ── Typography example box ──────────────────────────────────── */
.type-example {
  background: var(--surface);
  border: 1px solid var(--slate-10);
  padding: 3rem;
  max-width: 48rem;
}

/* ── Layout examples ─────────────────────────────────────────── */
.layout-pair {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
  margin-bottom: 2rem;
}
.layout-frame {
  border: 1px solid var(--slate-10);
  overflow: hidden;
  background: var(--white);
}
.layout-frame.land { aspect-ratio: 4/3; }
.layout-frame.port { aspect-ratio: 3/4; }
.layout-frame img { width: 100%; height: 100%; object-fit: contain; }

/* ── Social/Listing image grids ──────────────────────────────── */
.img-grid-2x2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
}
.img-grid-2x2-item {
  aspect-ratio: 3/2;
  background: var(--surface);
  border: 1px solid var(--slate-10);
  overflow: hidden;
}
.img-grid-2x2-item img { width: 100%; height: 100%; object-fit: cover; }

.img-grid-listings {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem 1.5rem;
}
.img-grid-listings-item {
  aspect-ratio: 3/2;
  overflow: hidden;
}
.img-grid-listings-item img { width: 100%; height: 100%; object-fit: cover; }

/* ── Example listing card ────────────────────────────────────── */
.listing-card {
  max-width: 48rem;
  border: 1px solid rgba(46,71,85,0.2);
  padding: 3rem;
  background: var(--surface-alt);
}
.listing-card > * + * { margin-top: 1.5rem; }

/* ── Italic ──────────────────────────────────────────────────── */
.italic { font-style: italic; }

/* ═══════════════════════════════════════════════════════════════
   RESPONSIVE
   ═══════════════════════════════════════════════════════════════ */

/* ── Desktop (≥ 1024 px) ─────────────────────────────────────── */
@media (min-width: 1024px) {
  .sidebar       { display: flex; }
  .mobile-header { display: none !important; }
  .mobile-menu   { display: none !important; }

  body:not(.is-home) #main        { margin-left: var(--sidebar-w); }
  body:not(.is-home) .site-footer { margin-left: var(--sidebar-w); }

  .main-content-inner { padding: 4rem 3rem; }
  .philo-wrap { height: auto; aspect-ratio: 21/9; }
}

@media (min-width: 1280px) {
  .main-content-inner { padding: 4rem 4rem; }
  .footer-inner       { padding: 1.5rem 4rem; }
}

@media (min-width: 1024px) {
  .footer-inner { padding: 1.5rem 3rem; }
}

/* ── Mobile (< 1024 px) ──────────────────────────────────────── */
@media (max-width: 1023px) {
  .sidebar       { display: none !important; }
  .mobile-header { display: flex; }
  .mobile-menu   { display: flex; }

  body:not(.is-home) #main { padding-top: var(--header-h); }

  .home-spacer  { display: none; }
  .home-content { padding: 2rem; }
  .home-title   { font-size: 1.5rem; }

  .logo-panels  { grid-template-columns: 1fr; }
  .palette-grid { grid-template-columns: 1fr; }
  .grid-2       { grid-template-columns: 1fr; gap: 3rem; }
  .value-row    { grid-template-columns: 1fr; }
  .layout-pair  { grid-template-columns: 1fr; }
  .img-grid-2x2 { grid-template-columns: 1fr; }
  .img-grid-listings { grid-template-columns: 1fr; }

  .location-name,
  .location-wm  { font-size: 1.2rem; }
  .logo-wm-large { font-size: 2rem; }

  .philo-quote  { font-size: 1.125rem; padding: 1rem 1.5rem; }
  .type-example { padding: 1.5rem; }
  .listing-card { padding: 1.5rem; }
}

@media (min-width: 768px) {
  .palette-grid { grid-template-columns: repeat(3, 1fr); }
  .grid-2       { grid-template-columns: 1fr 1fr; }
}