/* ============================================================
   Tho Design — shared stylesheet
   Warm architectural system: concrete + timber tones
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Archivo:wght@300;400;500;600;700&family=Spectral:ital,wght@0,300;0,400;0,500;0,600;1,400&display=swap');

:root {
  /* Warm neutral foundation */
  --paper:      oklch(0.968 0.008 80);
  --paper-2:    oklch(0.945 0.010 78);
  --ink:        oklch(0.225 0.012 60);
  --ink-soft:   oklch(0.42 0.012 62);
  --line:       oklch(0.225 0.012 60 / 0.14);
  --line-soft:  oklch(0.225 0.012 60 / 0.08);

  /* Material accents (shared chroma/lightness, varied hue) */
  --concrete:   oklch(0.72 0.012 70);
  --stone:      oklch(0.80 0.020 85);
  --sand:       oklch(0.84 0.045 82);
  --timber:     oklch(0.66 0.060 58);
  --clay:       oklch(0.60 0.075 45);
  --slate:      oklch(0.56 0.022 250);

  --accent:     oklch(0.58 0.085 48);   /* timber/clay link accent */

  --maxw: 1480px;
  --gutter: clamp(20px, 4.5vw, 72px);
  --nav-h: 74px;

  --serif: 'Spectral', Georgia, serif;
  --sans: 'Archivo', system-ui, -apple-system, sans-serif;
}

* { box-sizing: border-box; }

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

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.6;
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; }

::selection { background: var(--timber); color: var(--paper); }

.wrap { max-width: var(--maxw); margin: 0 auto; padding-inline: var(--gutter); }

/* Utility type */
.eyebrow {
  font-size: 12.5px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  font-weight: 500;
  color: var(--ink-soft);
}
.mono {
  font-family: ui-monospace, 'SFMono-Regular', Menlo, monospace;
  font-size: 12px;
  letter-spacing: 0.04em;
}

/* ============================================================
   Material "image" blocks (no photos)
   ============================================================ */
.block {
  position: relative;
  overflow: hidden;
  background: var(--concrete) center / cover no-repeat;
  isolation: isolate;
}
.block::after {
  /* subtle architectural striations */
  content: "";
  position: absolute; inset: 0;
  background:
    repeating-linear-gradient(var(--stripe-angle, 110deg),
      rgba(255,255,255,0.05) 0 1px,
      rgba(0,0,0,0.015) 1px 3px,
      transparent 3px 26px),
    linear-gradient(160deg, rgba(255,255,255,0.14), rgba(0,0,0,0.16));
  mix-blend-mode: soft-light;
  z-index: 0;
}
.block > * { position: relative; z-index: 1; }

.block[data-tone="concrete"] { background: var(--concrete) center / cover no-repeat; }
.block[data-tone="stone"]    { background: var(--stone) center / cover no-repeat; }
.block[data-tone="sand"]     { background: var(--sand) center / cover no-repeat; }
.block[data-tone="timber"]   { background: var(--timber) center / cover no-repeat; --stripe-angle: 92deg; }
.block[data-tone="clay"]     { background: var(--clay) center / cover no-repeat; }
.block[data-tone="slate"]    { background: var(--slate) center / cover no-repeat; }
.block[data-tone="ink"]      { background: oklch(0.30 0.014 60) center / cover no-repeat; }

/* timber blocks get slat-like vertical grain */
.block[data-tone="timber"]::after,
.block[data-tone="clay"]::after {
  background:
    repeating-linear-gradient(90deg,
      rgba(255,255,255,0.06) 0 2px,
      rgba(0,0,0,0.05) 2px 4px,
      transparent 4px 18px),
    linear-gradient(160deg, rgba(255,255,255,0.12), rgba(0,0,0,0.22));
}

.block-label {
  position: absolute; left: 14px; bottom: 12px;
  color: rgba(255,255,255,0.82);
  font-family: ui-monospace, Menlo, monospace;
  font-size: 11px; letter-spacing: 0.06em;
  z-index: 2;
}

/* ============================================================
   Top navigation
   ============================================================ */
.topbar {
  position: fixed; top: 0; left: 0; right: 0;
  height: var(--nav-h);
  display: flex; align-items: center; justify-content: space-between;
  padding-inline: var(--gutter);
  z-index: 60;
  transition: background .4s ease, color .4s ease, box-shadow .4s ease;
  color: var(--on-bar, #fff);
}
.topbar.solid {
  background: var(--paper);
  color: var(--ink);
  box-shadow: 0 1px 0 var(--line-soft);
}
.brand {
  font-family: var(--sans);
  font-weight: 700;
  font-size: 20px;
  letter-spacing: -0.01em;
  display: flex; align-items: center; gap: 0;
}
.brand .plus { font-weight: 400; margin-inline: .34em; opacity: .85; }

.nav-actions { display: flex; align-items: center; gap: 8px; }
.icon-btn {
  width: 44px; height: 44px;
  display: grid; place-items: center;
  background: transparent; border: 0; color: inherit;
  border-radius: 50%;
  transition: background .25s ease;
}
.icon-btn:hover { background: color-mix(in oklab, currentColor 14%, transparent); }
.icon-btn svg { width: 20px; height: 20px; stroke: currentColor; }

.lang-toggle {
  font-family: var(--sans); font-size: 11px; letter-spacing: .12em; font-weight: 600;
  background: transparent; border: 1px solid currentColor; color: inherit;
  padding: 5px 9px; border-radius: 3px; cursor: pointer;
  opacity: .65; transition: opacity .2s;
}
.lang-toggle:hover { opacity: 1; }

.menu-toggle .bars { display: block; width: 22px; }
.menu-toggle .bars span {
  display: block; height: 1.6px; background: currentColor;
  margin: 5px 0; border-radius: 2px;
  transition: transform .3s ease, opacity .25s ease;
}

/* ============================================================
   Fullscreen overlay menu
   ============================================================ */
.overlay {
  position: fixed; inset: 0; z-index: 80;
  display: grid; grid-template-columns: 1fr 1fr;
  background: var(--paper);
  visibility: hidden; opacity: 0;
  transition: opacity .5s ease, visibility .5s;
}
.overlay.open { visibility: visible; opacity: 1; }

.overlay-visual { position: relative; overflow: hidden; }
.overlay-visual .block { position: absolute; inset: 0;
  transform: scale(1.04); transition: transform 6s ease; }
.overlay.open .overlay-visual .block { transform: scale(1); }

.overlay-panel {
  position: relative;
  padding: clamp(28px, 6vh, 64px) var(--gutter);
  display: flex; flex-direction: column;
  overflow-y: auto;
}
.overlay-top {
  position: absolute; top: 0; right: 0; left: 0;
  height: var(--nav-h); display: flex; align-items: center;
  justify-content: flex-end; gap: 8px; padding-inline: var(--gutter);
}
.overlay-close {
  width: 52px; height: 52px; border-radius: 50%;
  background: var(--ink); color: var(--paper); border: 0;
  display: grid; place-items: center;
}
.overlay-close svg { width: 20px; height: 20px; stroke: currentColor; }

.overlay-body {
  margin-top: clamp(56px, 9vh, 96px);
  display: grid; grid-template-columns: 1fr 1fr; gap: 40px;
  flex: 1;
}
.overlay-col .col-head {
  font-size: 13px; letter-spacing: .14em; text-transform: uppercase;
  color: var(--ink-soft); margin-bottom: 18px;
}
.menu-list { list-style: none; margin: 0; padding: 0; }
.menu-list li { margin: 2px 0; }
.menu-list a {
  font-family: var(--serif);
  font-size: clamp(28px, 3.4vw, 46px);
  font-weight: 400;
  line-height: 1.18;
  color: var(--ink-soft);
  transition: color .2s ease;
  display: inline-block;
}
.menu-list a:hover,
.menu-list a.active { color: var(--ink); }

.submenu { list-style: none; margin: 0; padding: 0; }
.submenu li { margin: 0; }
.submenu a {
  display: flex; align-items: center; gap: 10px;
  font-size: clamp(17px, 1.5vw, 21px);
  color: var(--ink-soft); padding: 7px 0;
  transition: color .2s ease, transform .2s ease;
}
.submenu a:hover { color: var(--ink); transform: translateX(4px); }
.submenu a .arr { font-size: 15px; color: var(--accent); }

.overlay-foot {
  display: flex; align-items: flex-end; justify-content: space-between;
  gap: 24px; padding-top: 32px; margin-top: 32px;
  border-top: 1px solid var(--line);
}
.socials { display: flex; gap: 8px; }
.soc {
  width: 38px; height: 38px; border-radius: 50%;
  background: var(--paper-2); display: grid; place-items: center;
  color: var(--ink-soft); font-size: 11px; font-weight: 600;
  border: 1px solid var(--line-soft);
  transition: background .2s, color .2s;
}
.soc:hover { background: var(--ink); color: var(--paper); }
.overlay-foot .foot-right { text-align: right; line-height: 1.7; }
.overlay-foot .foot-right a { color: var(--ink); }
.overlay-foot .foot-right .sub { color: var(--ink-soft); font-size: 14px; }

/* ============================================================
   Hero carousel
   ============================================================ */
.hero { position: relative; height: 100svh; min-height: 560px; overflow: hidden; }
.hero-track { position: absolute; inset: 0; }
.hero-slide {
  position: absolute; inset: 0;
  opacity: 0; transition: opacity 1.1s ease;
  display: flex; align-items: flex-end;
  background-size: cover; background-position: center;
}
.hero-slide.active { opacity: 1; }
.hero-slide .scrim {
  position: absolute; inset: 0;
  background: linear-gradient(to top, rgba(0,0,0,.42), rgba(0,0,0,.05) 42%, rgba(0,0,0,.12));
  z-index: 1;
}
.hero-caption {
  position: relative; z-index: 2;
  color: #fff; padding: 0 var(--gutter) clamp(48px, 8vh, 96px);
  max-width: var(--maxw); margin: 0 auto; width: 100%;
}
.hero-caption .eyebrow { color: rgba(255,255,255,.86); }
.hero-caption h1 {
  font-family: var(--serif); font-weight: 400;
  font-size: clamp(34px, 5.2vw, 78px);
  line-height: 1.04; letter-spacing: -0.01em;
  margin: 14px 0 0; max-width: 16ch;
  text-wrap: balance;
}
.hero-caption .meta { margin-top: 18px; opacity: .9; font-size: 15px; }

.hero-dots {
  position: absolute; z-index: 3; left: 50%; transform: translateX(-50%);
  bottom: clamp(22px, 4vh, 40px);
  display: flex; gap: 10px;
}
.hero-dots button {
  width: 9px; height: 9px; border-radius: 50%; border: 0;
  background: rgba(255,255,255,.45); padding: 0;
  transition: background .3s, transform .3s;
}
.hero-dots button.active { background: #fff; transform: scale(1.25); }

.scroll-cue {
  position: absolute; z-index: 3; right: var(--gutter);
  top: 50%; transform: translateY(-50%);
  width: 46px; height: 92px; border-radius: 40px;
  border: 1px solid rgba(255,255,255,.5);
  display: grid; place-items: center; color: #fff;
  background: rgba(255,255,255,.06); backdrop-filter: blur(2px);
}
.scroll-cue svg { width: 16px; height: 16px; animation: bob 1.8s ease-in-out infinite; }
@keyframes bob { 0%,100%{ transform: translateY(-4px);} 50%{ transform: translateY(4px);} }

/* ============================================================
   Sections
   ============================================================ */
section { position: relative; }
.section-pad { padding-block: clamp(64px, 10vh, 132px); }

.section-head {
  display: flex; align-items: end; justify-content: space-between;
  gap: 24px; margin-bottom: clamp(28px, 4vw, 52px);
  flex-wrap: wrap;
}
.section-head h2 {
  font-family: var(--serif); font-weight: 400;
  font-size: clamp(28px, 3.6vw, 50px); line-height: 1.05;
  letter-spacing: -0.01em; margin: 10px 0 0; max-width: 18ch;
}
.link-arrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-weight: 500; font-size: 15px; color: var(--ink);
  border-bottom: 1px solid var(--line);
  padding-bottom: 4px; transition: gap .25s, border-color .25s;
}
.link-arrow:hover { gap: 14px; border-color: var(--ink); }

/* Featured projects grid */
.proj-grid {
  display: grid; grid-template-columns: repeat(12, 1fr);
  gap: clamp(14px, 1.6vw, 26px);
}
.proj-card { display: block; group: card; }
.proj-card .frame {
  position: relative; overflow: hidden; aspect-ratio: 4/3;
}
.proj-card.tall .frame { aspect-ratio: 3/4; }
.proj-card.wide .frame { aspect-ratio: 16/10; }
.proj-card .frame .block { position: absolute; inset: 0;
  transform: scale(1.001); transition: transform 1.1s cubic-bezier(.16,.84,.32,1); }
.proj-card:hover .frame .block { transform: scale(1.06); }
.proj-card .reveal {
  position: absolute; inset: 0; z-index: 2;
  background: linear-gradient(to top, rgba(0,0,0,.5), transparent 55%);
  opacity: 0; transition: opacity .4s ease;
  display: flex; align-items: flex-end; padding: 20px;
}
.proj-card:hover .reveal { opacity: 1; }
.proj-card .reveal .r-in { color: #fff; transform: translateY(8px);
  transition: transform .4s ease; }
.proj-card:hover .reveal .r-in { transform: translateY(0); }
.proj-card .reveal .r-cat { font-size: 12px; letter-spacing: .1em;
  text-transform: uppercase; opacity: .85; }
.proj-meta { padding-top: 14px; }
.proj-meta .p-name {
  font-family: var(--serif); font-size: clamp(19px, 1.7vw, 24px);
  line-height: 1.2; }
.proj-meta .p-place { color: var(--ink-soft); font-size: 14px; margin-top: 2px; }

/* span helpers */
.c4 { grid-column: span 4; } .c5 { grid-column: span 5; }
.c6 { grid-column: span 6; } .c7 { grid-column: span 7; }
.c8 { grid-column: span 8; } .c12 { grid-column: span 12; }

/* Studio intro */
.studio { background: var(--paper-2); }
.studio-grid {
  display: grid; grid-template-columns: 1.1fr .9fr;
  gap: clamp(32px, 6vw, 90px); align-items: start;
}
.studio-lead {
  font-family: var(--serif); font-weight: 400;
  font-size: clamp(24px, 2.8vw, 38px); line-height: 1.28;
  letter-spacing: -0.01em; margin: 0; text-wrap: pretty;
}
.studio-lead .em { color: var(--accent); font-style: italic; }
.studio-aside p { color: var(--ink-soft); margin: 0 0 18px; }

/* Expertise list */
.expertise-list { border-top: 1px solid var(--line); }
.exp-row {
  display: grid; grid-template-columns: 56px 1fr auto;
  gap: 20px; align-items: baseline;
  padding: clamp(18px, 2.4vw, 30px) 0;
  border-bottom: 1px solid var(--line);
  transition: padding-left .3s ease, background .3s ease;
}
.exp-row:hover { padding-left: 14px; }
.exp-row .num { font-family: ui-monospace, Menlo, monospace;
  font-size: 13px; color: var(--ink-soft); }
.exp-row .name {
  font-family: var(--serif); font-size: clamp(22px, 2.6vw, 34px);
  font-weight: 400; }
.exp-row .desc { color: var(--ink-soft); font-size: 14.5px; max-width: 30ch;
  justify-self: end; text-align: right; }
.exp-row .arr { color: var(--accent); transition: transform .3s; }
.exp-row:hover .arr { transform: translate(4px,-4px); }

/* Stats */
.stats { background: var(--ink); color: var(--paper); }
.stats .eyebrow { color: oklch(0.72 0.012 70); }
.stats-grid {
  display: grid; grid-template-columns: repeat(4, 1fr);
  gap: clamp(24px, 4vw, 56px); margin-top: 40px;
}
.stat .num {
  font-family: var(--serif); font-weight: 300;
  font-size: clamp(44px, 6vw, 86px); line-height: 1;
  letter-spacing: -0.02em; }
.stat .lab { color: oklch(0.78 0.01 80); margin-top: 12px; font-size: 14.5px; }
.stat { border-top: 1px solid rgba(255,255,255,.16); padding-top: 22px; }

/* News */
.news-grid {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: clamp(18px, 2.4vw, 36px);
}
.news-card .frame { aspect-ratio: 3/2; overflow: hidden; position: relative; }
.news-card .frame .block { position: absolute; inset: 0;
  transition: transform 1s cubic-bezier(.16,.84,.32,1); }
.news-card:hover .frame .block { transform: scale(1.05); }
.news-card .n-cat { margin-top: 16px; }
.news-card .n-title {
  font-family: var(--serif); font-size: clamp(19px, 1.6vw, 23px);
  line-height: 1.24; margin-top: 8px; }
.news-card .n-date { color: var(--ink-soft); font-size: 13px; margin-top: 10px; }

/* ============================================================
   Footer
   ============================================================ */
.site-foot { background: var(--paper-2); border-top: 1px solid var(--line); }
.foot-top {
  display: grid; grid-template-columns: 1.4fr 1fr 1fr;
  gap: clamp(28px, 5vw, 72px);
  padding-block: clamp(56px, 8vh, 96px);
}
.foot-news h3 {
  font-family: var(--serif); font-weight: 400;
  font-size: clamp(26px, 3vw, 40px); margin: 8px 0 22px; max-width: 16ch; }
.news-form { display: flex; border-bottom: 1px solid var(--ink); max-width: 420px; }
.news-form input {
  flex: 1; border: 0; background: transparent; font: inherit;
  padding: 12px 0; color: var(--ink); outline: none; }
.news-form input::placeholder { color: var(--ink-soft); }
.news-form button {
  border: 0; background: transparent; color: var(--ink);
  display: grid; place-items: center; padding: 0 6px; }
.news-form button svg { width: 22px; height: 22px; stroke: currentColor; }
.foot-col h4 { font-size: 12.5px; letter-spacing: .14em; text-transform: uppercase;
  color: var(--ink-soft); font-weight: 500; margin: 0 0 16px; }
.foot-col ul { list-style: none; margin: 0; padding: 0; }
.foot-col li { margin: 9px 0; }
.foot-col a { color: var(--ink); opacity: .9; transition: opacity .2s; }
.foot-col a:hover { opacity: 1; color: var(--accent); }
.foot-bottom {
  display: flex; align-items: center; justify-content: space-between;
  gap: 20px; flex-wrap: wrap;
  padding-block: 26px; border-top: 1px solid var(--line);
  color: var(--ink-soft); font-size: 13px; }
.foot-bottom .socials .soc { background: transparent; }

/* ============================================================
   Reveal-on-scroll
   ============================================================ */
.reveal-up { opacity: 0; transform: translateY(26px);
  transition: opacity .8s ease, transform .8s cubic-bezier(.16,.84,.32,1); }
.reveal-up.in { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  * { scroll-behavior: auto !important; }
  .reveal-up { opacity: 1; transform: none; transition: none; }
  .scroll-cue svg { animation: none; }
}

/* ============================================================
   Inner page hero
   ============================================================ */
.page-hero {
  padding-top: calc(var(--nav-h) + clamp(40px, 8vh, 90px));
  padding-bottom: clamp(36px, 6vh, 64px);
}
.page-hero .eyebrow { color: var(--ink-soft); }
.page-hero h1 {
  font-family: var(--serif); font-weight: 400;
  font-size: clamp(38px, 6vw, 92px); line-height: 1.02;
  letter-spacing: -0.015em; margin: 14px 0 0; max-width: 16ch;
  text-wrap: balance; }
.page-hero .lede { color: var(--ink-soft); font-size: clamp(17px,1.5vw,20px);
  max-width: 56ch; margin-top: 20px; }

/* Filter bar */
.filters { display: flex; flex-wrap: wrap; gap: 8px;
  padding-block: 22px; border-block: 1px solid var(--line); margin-bottom: 40px; }
.chip {
  border: 1px solid var(--line); background: transparent;
  border-radius: 40px; padding: 8px 18px; font-size: 14px;
  color: var(--ink-soft); transition: all .2s; }
.chip:hover { border-color: var(--ink); color: var(--ink); }
.chip.active { background: var(--ink); border-color: var(--ink); color: var(--paper); }

/* Project detail */
.pd-hero { height: 78svh; min-height: 460px; position: relative; overflow: hidden; }
.pd-hero .block { position: absolute; inset: 0; }
.pd-hero .scrim { position: absolute; inset: 0;
  background: linear-gradient(to top, rgba(0,0,0,.42), transparent 50%); z-index: 1; }
.pd-hero .cap { position: absolute; z-index: 2; bottom: 0; left: 0; right: 0;
  color: #fff; padding: 0 var(--gutter) clamp(36px,6vh,64px);
  max-width: var(--maxw); margin: 0 auto; }
.pd-hero .cap h1 { font-family: var(--serif); font-weight: 400;
  font-size: clamp(34px,5vw,72px); line-height: 1.04; margin: 12px 0 0; }
.pd-facts { display: grid; grid-template-columns: repeat(4,1fr);
  gap: clamp(20px,3vw,48px); padding-block: clamp(40px,6vh,72px);
  border-bottom: 1px solid var(--line); }
.pd-fact .k { font-size: 12.5px; letter-spacing: .12em; text-transform: uppercase;
  color: var(--ink-soft); }
.pd-fact .v { font-family: var(--serif); font-size: clamp(19px,1.8vw,26px);
  margin-top: 8px; }
.pd-body { display: grid; grid-template-columns: 1fr 1.2fr;
  gap: clamp(32px,6vw,90px); padding-block: clamp(48px,8vh,96px); }
.pd-body .pd-lead { font-family: var(--serif); font-size: clamp(22px,2.4vw,32px);
  line-height: 1.3; margin: 0; }
.pd-body p { color: var(--ink-soft); margin: 0 0 18px; }
.pd-gallery { display: grid; grid-template-columns: repeat(12,1fr);
  gap: clamp(14px,1.6vw,26px); padding-bottom: clamp(48px,8vh,110px); }
.pd-gallery .frame { overflow: hidden; }
.pd-gallery .frame .block { aspect-ratio: 4/3; }
.pd-gallery-group { grid-column: 1 / -1; }
.pd-gallery-group + .pd-gallery-group { margin-top: clamp(28px,4vh,56px); }
.pd-gallery-group-title { font-family: var(--serif); font-weight: 400;
  font-size: clamp(18px,1.6vw,24px); margin: 0 0 12px; }
.pd-gallery-group-body { color: var(--ink-soft); max-width: 640px; margin: 0 0 20px; }
.pd-gallery-group-body p { margin: 0 0 12px; }
.pd-gallery-group-grid { display: grid; grid-template-columns: repeat(12,1fr);
  gap: clamp(14px,1.6vw,26px); }
.pd-gallery-group-grid .frame { overflow: hidden; }
.pd-gallery-group-grid .frame .block { aspect-ratio: 4/3; }

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width: 980px) {
  .overlay { grid-template-columns: 1fr; }
  .overlay-visual { display: none; }
  .overlay-body { grid-template-columns: 1fr; gap: 28px; }
  .studio-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: repeat(2,1fr); }
  .news-grid { grid-template-columns: 1fr 1fr; }
  .foot-top { grid-template-columns: 1fr; }
  .pd-facts { grid-template-columns: repeat(2,1fr); }
  .pd-body { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
  body { font-size: 16px; }
  .proj-grid > * { grid-column: 1 / -1 !important; }
  .news-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .exp-row { grid-template-columns: 1fr auto; }
  .exp-row .num { display: none; }
  .exp-row .desc { display: none; }
  .scroll-cue { display: none; }
  .pd-facts { grid-template-columns: 1fr 1fr; }
  .pd-gallery > * { grid-column: 1 / -1 !important; }
  .pd-gallery-group-grid > * { grid-column: 1 / -1 !important; }
}