/* ============================================================
   B R BUILDERS PVT. LIMITED
   Architecture studio landing — single typeface (Space Grotesk)
   Palette: concrete gray · deep graphite · steel blue · white
   ============================================================ */

:root {
  --graphite:      #15171a;
  --graphite-2:    #1d2024;
  --graphite-3:    #282c31;
  --concrete:      #8b8a83;
  --concrete-mid:  #b6b4ac;
  --concrete-soft: #d9d6cf;
  --paper:         #edeae3;
  --paper-2:       #f4f2ec;
  --white:         #ffffff;
  --steel:         #466176;
  --steel-bright:  #6f97ae;
  --steel-line:    rgba(111, 151, 174, 0.45);

  --line-dark:  rgba(255, 255, 255, 0.12);
  --line-light: rgba(21, 23, 26, 0.14);

  --font: "Space Grotesk", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;

  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --maxw: 1500px;
  --pad: clamp(1.4rem, 5vw, 5rem);
}

* { margin: 0; padding: 0; box-sizing: border-box; }

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

body {
  font-family: var(--font);
  background: var(--paper);
  color: var(--graphite);
  line-height: 1.6;
  font-weight: 400;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

::selection { background: var(--steel); color: var(--white); }

/* ---------- Shared layout ---------- */
.shell { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 var(--pad); }

.eyebrow {
  font-size: 0.72rem;
  letter-spacing: 0.34em;
  text-transform: uppercase;
  font-weight: 600;
  color: var(--steel);
  display: inline-flex;
  align-items: center;
  gap: 0.85rem;
}
.eyebrow::before {
  content: "";
  width: 2.4rem;
  height: 1px;
  background: var(--steel);
  display: inline-block;
}

.section-index {
  font-size: clamp(0.78rem, 1vw, 0.9rem);
  letter-spacing: 0.3em;
  font-weight: 500;
  color: var(--concrete);
  font-variant-numeric: tabular-nums;
}

h1, h2, h3, h4 { font-weight: 600; line-height: 1.02; letter-spacing: -0.02em; }

.display {
  font-size: clamp(2.5rem, 7vw, 6.6rem);
  font-weight: 500;
  line-height: 0.94;
  letter-spacing: -0.035em;
}

/* reveal animation */
.reveal { opacity: 0; transform: translateY(38px); transition: opacity 1s var(--ease), transform 1s var(--ease); }
.reveal.in { opacity: 1; transform: none; }
.reveal.d1 { transition-delay: 0.08s; }
.reveal.d2 { transition-delay: 0.16s; }
.reveal.d3 { transition-delay: 0.24s; }
.reveal.d4 { transition-delay: 0.32s; }

/* ============================================================
   SCROLL PROGRESS
   ============================================================ */
.scroll-progress {
  position: fixed; top: 0; left: 0; height: 2px; width: 0;
  background: var(--steel-bright); z-index: 200;
}

/* ============================================================
   HEADER
   ============================================================ */
.site-header {
  position: fixed; top: 0; left: 0; width: 100%; z-index: 150;
  transition: background 0.5s var(--ease), border-color 0.5s var(--ease), backdrop-filter 0.5s;
  border-bottom: 1px solid transparent;
  mix-blend-mode: normal;
}
.site-header.scrolled {
  background: rgba(21, 23, 26, 0.86);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line-dark);
}
.nav-wrap {
  display: flex; align-items: center; justify-content: space-between;
  height: 84px; max-width: var(--maxw); margin: 0 auto; padding: 0 var(--pad);
}
.brand { display: flex; align-items: center; gap: 0.9rem; color: var(--white); }
.brand-mark {
  width: 42px; height: 42px; flex: none;
  border: 1.5px solid var(--steel-bright);
  display: grid; place-items: center;
  font-weight: 600; font-size: 0.95rem; letter-spacing: 0.04em;
  position: relative;
}
.brand-mark::after {
  content: ""; position: absolute; inset: 4px; border: 1px solid rgba(255,255,255,0.18);
}
.brand-text strong { display: block; font-size: 0.95rem; font-weight: 600; letter-spacing: 0.06em; line-height: 1.1; }
.brand-text em { display: block; font-style: normal; font-size: 0.62rem; letter-spacing: 0.28em; text-transform: uppercase; color: var(--steel-bright); margin-top: 3px; }

.nav-links { display: flex; align-items: center; gap: clamp(1rem, 2vw, 2.1rem); }
.nav-links a {
  color: rgba(255,255,255,0.78); font-size: 0.8rem; letter-spacing: 0.04em; font-weight: 500;
  position: relative; padding: 4px 0; transition: color 0.3s;
}
.nav-links a:hover { color: var(--white); }
.nav-links a::after {
  content: ""; position: absolute; left: 0; bottom: -2px; width: 0; height: 1px;
  background: var(--steel-bright); transition: width 0.35s var(--ease);
}
.nav-links a:hover::after { width: 100%; }
.nav-privacy { color: var(--steel-bright) !important; }

.header-cta {
  border: 1px solid var(--steel-bright); color: var(--white) !important;
  padding: 0.7rem 1.4rem !important; font-size: 0.74rem !important; letter-spacing: 0.16em;
  text-transform: uppercase; transition: background 0.35s var(--ease), color 0.35s;
}
.header-cta::after { display: none; }
.header-cta:hover { background: var(--steel-bright); color: var(--graphite) !important; }

.menu-toggle { display: none; flex-direction: column; gap: 5px; background: none; border: none; cursor: pointer; padding: 8px; }
.menu-toggle span { width: 26px; height: 2px; background: var(--white); transition: 0.35s var(--ease); }
.menu-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.menu-toggle.open span:nth-child(2) { opacity: 0; }
.menu-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.mobile-menu {
  position: fixed; inset: 0; background: var(--graphite); z-index: 140;
  display: flex; flex-direction: column; justify-content: center; gap: 0.4rem;
  padding: var(--pad); transform: translateX(100%); transition: transform 0.5s var(--ease);
}
.mobile-menu.open { transform: none; }
.mobile-menu a {
  color: var(--white); font-size: clamp(1.7rem, 7vw, 2.6rem); font-weight: 500;
  letter-spacing: -0.02em; padding: 0.35rem 0; border-bottom: 1px solid var(--line-dark);
  display: flex; align-items: baseline; gap: 1rem;
}
.mobile-menu a span { font-size: 0.8rem; color: var(--steel-bright); letter-spacing: 0.2em; }
.mobile-menu .mobile-cta { color: var(--steel-bright); border: none; margin-top: 1rem; }

/* ============================================================
   HERO
   ============================================================ */
.hero {
  position: relative; min-height: 100vh; background: var(--graphite); color: var(--white);
  display: flex; align-items: flex-end; overflow: hidden;
}
.hero-bg { position: absolute; inset: 0; z-index: 0; }
.hero-bg img { width: 100%; height: 100%; object-fit: cover; opacity: 0.55; }
.hero-bg::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(21,23,26,0.55) 0%, rgba(21,23,26,0.2) 35%, rgba(21,23,26,0.85) 100%);
}
.hero-grid-overlay {
  position: absolute; inset: 0; z-index: 1; pointer-events: none;
  background-image:
    linear-gradient(var(--line-dark) 1px, transparent 1px),
    linear-gradient(90deg, var(--line-dark) 1px, transparent 1px);
  background-size: 7vw 7vw; opacity: 0.5;
  -webkit-mask-image: radial-gradient(circle at 70% 30%, #000 0%, transparent 75%);
  mask-image: radial-gradient(circle at 70% 30%, #000 0%, transparent 75%);
}
.hero-inner { position: relative; z-index: 3; width: 100%; padding-bottom: clamp(3rem, 7vh, 7rem); padding-top: 140px; }
.hero-meta {
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: 1rem;
  border-top: 1px solid var(--line-dark); padding-top: 1.4rem; margin-top: clamp(2rem, 5vh, 4rem);
  font-size: 0.74rem; letter-spacing: 0.18em; text-transform: uppercase; color: var(--concrete-mid);
}
.hero-meta span strong { color: var(--white); font-weight: 600; }
.hero h1 { font-size: clamp(2.9rem, 9.5vw, 9rem); font-weight: 500; letter-spacing: -0.045em; line-height: 0.9; }
.hero h1 em { font-style: italic; font-weight: 400; color: var(--steel-bright); }
.hero-lead { max-width: 40ch; margin-top: 1.6rem; font-size: clamp(1rem, 1.4vw, 1.2rem); color: var(--concrete-soft); }

.hero-side {
  position: absolute; left: var(--pad); top: 50%; transform: translateY(-50%) rotate(180deg);
  writing-mode: vertical-rl; font-size: 0.7rem; letter-spacing: 0.4em; text-transform: uppercase;
  color: var(--concrete); z-index: 3;
}
.scroll-cue {
  position: absolute; right: var(--pad); bottom: clamp(3rem, 7vh, 7rem); z-index: 3;
  display: flex; align-items: center; gap: 0.7rem; font-size: 0.68rem; letter-spacing: 0.26em;
  text-transform: uppercase; color: var(--concrete-mid);
}
.scroll-cue i { width: 1px; height: 46px; background: var(--steel-bright); display: block; position: relative; overflow: hidden; }
.scroll-cue i::after { content: ""; position: absolute; top: -46px; left: 0; width: 100%; height: 46px; background: var(--white); animation: cue 2.2s var(--ease) infinite; }
@keyframes cue { 0% { top: -46px; } 60%,100% { top: 46px; } }

/* corner ticks */
.tick { position: absolute; width: 14px; height: 14px; z-index: 3; border-color: var(--steel-bright); }
.tick.tl { top: 100px; left: var(--pad); border-left: 1px solid; border-top: 1px solid; }
.tick.tr { top: 100px; right: var(--pad); border-right: 1px solid; border-top: 1px solid; }

/* ============================================================
   MARQUEE STRIP
   ============================================================ */
.strip { background: var(--graphite-2); color: var(--white); overflow: hidden; padding: 1.1rem 0; border-top: 1px solid var(--line-dark); border-bottom: 1px solid var(--line-dark); }
.strip-track { display: flex; gap: 3.5rem; white-space: nowrap; width: max-content; animation: scrollx 34s linear infinite; }
.strip-track span { font-size: 0.86rem; letter-spacing: 0.22em; text-transform: uppercase; color: var(--concrete-mid); display: inline-flex; align-items: center; gap: 3.5rem; }
.strip-track span::after { content: "◢"; color: var(--steel); font-size: 0.7rem; }
@keyframes scrollx { to { transform: translateX(-50%); } }

/* ============================================================
   SECTION GENERIC
   ============================================================ */
section { position: relative; }
.section-pad { padding: clamp(5rem, 12vh, 10rem) 0; }
.section-head { display: flex; justify-content: space-between; align-items: flex-end; gap: 2rem; flex-wrap: wrap; margin-bottom: clamp(2.5rem, 6vh, 5rem); }
.section-head h2 { max-width: 14ch; }

/* ============================================================
   01 — PHILOSOPHY (split screen)
   ============================================================ */
.philosophy { background: var(--paper-2); }
.phil-split { display: grid; grid-template-columns: 1fr 1fr; min-height: 86vh; }
.phil-visual { position: relative; overflow: hidden; background: var(--graphite); }
.phil-visual img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; transition: transform 1.4s var(--ease); }
.phil-visual:hover img { transform: scale(1.05); }
.phil-visual .v-tag {
  position: absolute; bottom: 2rem; left: 2rem; right: 2rem; z-index: 2; color: var(--white);
  display: flex; justify-content: space-between; font-size: 0.72rem; letter-spacing: 0.2em; text-transform: uppercase;
  border-top: 1px solid var(--line-dark); padding-top: 1rem;
}
.phil-text { padding: clamp(2.5rem, 7vw, 6rem); display: flex; flex-direction: column; justify-content: center; }
.phil-text .lede { font-size: clamp(1.5rem, 2.6vw, 2.4rem); font-weight: 500; line-height: 1.12; letter-spacing: -0.025em; margin: 1.8rem 0; }
.phil-text .lede b { color: var(--steel); font-weight: 500; }
.phil-text p { color: #4c4e51; max-width: 50ch; }
.phil-principles { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1px; background: var(--line-light); margin-top: 2.6rem; border: 1px solid var(--line-light); }
.phil-principles div { background: var(--paper-2); padding: 1.5rem 1.3rem; }
.phil-principles h4 { font-size: 2.4rem; font-weight: 500; color: var(--steel); letter-spacing: -0.04em; }
.phil-principles span { display: block; font-size: 0.72rem; letter-spacing: 0.18em; text-transform: uppercase; color: var(--concrete); margin-top: 0.5rem; }

/* ============================================================
   02 — SIGNATURE PROJECTS (editorial)
   ============================================================ */
.projects { background: var(--graphite); color: var(--white); }
.projects .section-index, .projects .section-head h2 { color: var(--white); }
.proj-list { border-top: 1px solid var(--line-dark); }
.proj-row {
  display: grid; grid-template-columns: 90px 1.4fr 1fr 150px; align-items: center; gap: 1.5rem;
  padding: clamp(1.6rem, 3vh, 2.4rem) 0; border-bottom: 1px solid var(--line-dark);
  position: relative; transition: padding 0.5s var(--ease);
}
.proj-row .p-num { font-size: 0.82rem; letter-spacing: 0.2em; color: var(--steel-bright); font-variant-numeric: tabular-nums; }
.proj-row .p-name { font-size: clamp(1.5rem, 3vw, 2.6rem); font-weight: 500; letter-spacing: -0.03em; transition: transform 0.5s var(--ease); }
.proj-row .p-meta { font-size: 0.8rem; letter-spacing: 0.05em; color: var(--concrete-mid); }
.proj-row .p-meta b { color: var(--white); font-weight: 500; display: block; }
.proj-row .p-loc { text-align: right; font-size: 0.78rem; letter-spacing: 0.16em; text-transform: uppercase; color: var(--concrete); }
.proj-thumb {
  position: fixed; width: 320px; height: 410px; pointer-events: none; z-index: 90;
  opacity: 0; transform: scale(0.94) translate(-50%, -50%); transition: opacity 0.4s var(--ease), transform 0.5s var(--ease);
  overflow: hidden; box-shadow: 0 30px 60px rgba(0,0,0,0.5);
}
.proj-thumb img { width: 100%; height: 100%; object-fit: cover; }
.proj-thumb.show { opacity: 1; }
@media (hover: hover) {
  .proj-row:hover { padding-left: 1.4rem; }
  .proj-row:hover .p-name { transform: translateX(6px); color: var(--steel-bright); }
}
/* mobile inline images for projects */
.proj-row .p-inline { display: none; }

/* ============================================================
   03 — CONSTRUCTION EXCELLENCE (blueprint)
   ============================================================ */
.excellence { background: var(--paper); position: relative; overflow: hidden; }
.blueprint-bg {
  position: absolute; inset: 0; z-index: 0; opacity: 0.5;
  background-color: var(--paper);
  background-image:
    linear-gradient(var(--line-light) 1px, transparent 1px),
    linear-gradient(90deg, var(--line-light) 1px, transparent 1px),
    linear-gradient(rgba(70,97,118,0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(70,97,118,0.06) 1px, transparent 1px);
  background-size: 120px 120px, 120px 120px, 24px 24px, 24px 24px;
}
.excellence .shell { position: relative; z-index: 1; }
.exc-grid { display: grid; grid-template-columns: 1.05fr 0.95fr; gap: clamp(2rem, 5vw, 5rem); align-items: center; }
.exc-diagram { position: relative; aspect-ratio: 4/5; border: 1px solid var(--steel-line); }
.exc-diagram img { width: 100%; height: 100%; object-fit: cover; filter: grayscale(0.15); }
.exc-diagram .corner { position: absolute; width: 18px; height: 18px; border-color: var(--steel); }
.exc-diagram .corner.a { top: -1px; left: -1px; border-left: 2px solid; border-top: 2px solid; }
.exc-diagram .corner.b { top: -1px; right: -1px; border-right: 2px solid; border-top: 2px solid; }
.exc-diagram .corner.c { bottom: -1px; left: -1px; border-left: 2px solid; border-bottom: 2px solid; }
.exc-diagram .corner.d { bottom: -1px; right: -1px; border-right: 2px solid; border-bottom: 2px solid; }
.exc-diagram .dim {
  position: absolute; font-size: 0.66rem; letter-spacing: 0.2em; text-transform: uppercase;
  color: var(--steel); background: var(--paper); padding: 2px 8px;
}
.exc-diagram .dim.top { top: -10px; left: 50%; transform: translateX(-50%); }
.exc-diagram .dim.side { top: 50%; right: -1px; transform: translate(50%, -50%) rotate(90deg); }
.exc-specs { display: flex; flex-direction: column; }
.exc-specs .lede { font-size: clamp(1.4rem, 2.4vw, 2.1rem); font-weight: 500; line-height: 1.15; letter-spacing: -0.025em; margin: 1.6rem 0 1rem; }
.exc-bars { margin-top: 1.8rem; display: flex; flex-direction: column; gap: 1.5rem; }
.exc-bar .bar-top { display: flex; justify-content: space-between; font-size: 0.82rem; letter-spacing: 0.04em; margin-bottom: 0.5rem; }
.exc-bar .bar-top b { color: var(--steel); font-weight: 600; }
.exc-bar .track { height: 4px; background: var(--concrete-soft); position: relative; overflow: hidden; }
.exc-bar .track i { position: absolute; left: 0; top: 0; height: 100%; width: 0; background: var(--steel); transition: width 1.6s var(--ease); }

/* ============================================================
   04 — TIMELINE
   ============================================================ */
.timeline { background: var(--graphite-2); color: var(--white); overflow: hidden; }
.timeline .section-index, .timeline .section-head h2 { color: var(--white); }
.tl-track { display: grid; grid-template-columns: repeat(5, 1fr); border-top: 1px solid var(--line-dark); position: relative; }
.tl-track::before { content: ""; position: absolute; top: -1px; left: 0; height: 1px; width: 100%; background: var(--steel-bright); transform-origin: left; transform: scaleX(0); transition: transform 1.6s var(--ease); }
.tl-track.in::before { transform: scaleX(1); }
.tl-step { padding: 2rem clamp(0.8rem,1.5vw,1.6rem) 0; border-left: 1px solid var(--line-dark); position: relative; }
.tl-step:first-child { border-left: none; }
.tl-step .dot { position: absolute; top: -5px; left: clamp(0.8rem,1.5vw,1.6rem); width: 9px; height: 9px; background: var(--steel-bright); border-radius: 50%; }
.tl-step .yr { font-size: 0.74rem; letter-spacing: 0.2em; color: var(--steel-bright); }
.tl-step h4 { font-size: clamp(1.1rem, 1.6vw, 1.45rem); font-weight: 500; margin: 0.7rem 0 0.6rem; }
.tl-step p { font-size: 0.84rem; color: var(--concrete-mid); line-height: 1.5; }
.tl-step .tl-img { margin-top: 1.4rem; aspect-ratio: 1/1; overflow: hidden; }
.tl-step .tl-img img { width: 100%; height: 100%; object-fit: cover; filter: grayscale(0.3); transition: filter 0.6s, transform 1s var(--ease); }
.tl-step:hover .tl-img img { filter: none; transform: scale(1.05); }

/* ============================================================
   05 — ARCHITECTURAL SHOWCASE (asymmetric gallery)
   ============================================================ */
.showcase { background: var(--paper); }
.gallery { display: grid; grid-template-columns: repeat(12, 1fr); grid-auto-rows: 11vw; gap: clamp(0.6rem, 1vw, 1rem); }
.g-item { position: relative; overflow: hidden; background: var(--graphite); }
.g-item img { width: 100%; height: 100%; object-fit: cover; transition: transform 1.2s var(--ease), filter 0.6s; }
.g-item:hover img { transform: scale(1.06); }
.g-item .cap {
  position: absolute; left: 0; bottom: 0; padding: 1.1rem 1.2rem; z-index: 2; color: var(--white);
  opacity: 0; transform: translateY(12px); transition: 0.5s var(--ease);
  font-size: 0.74rem; letter-spacing: 0.16em; text-transform: uppercase;
}
.g-item::after { content: ""; position: absolute; inset: 0; background: linear-gradient(transparent 55%, rgba(21,23,26,0.7)); opacity: 0; transition: 0.5s; }
.g-item:hover::after { opacity: 1; }
.g-item:hover .cap { opacity: 1; transform: none; }
.g-item .cap b { display: block; font-size: 1rem; letter-spacing: -0.01em; text-transform: none; font-weight: 500; margin-bottom: 2px; }
.g-a { grid-column: span 7; grid-row: span 3; }
.g-b { grid-column: span 5; grid-row: span 2; }
.g-c { grid-column: span 5; grid-row: span 2; }
.g-d { grid-column: span 4; grid-row: span 2; }
.g-e { grid-column: span 4; grid-row: span 2; }
.g-f { grid-column: span 4; grid-row: span 2; }

/* ============================================================
   STAT BAND
   ============================================================ */
.stats { background: var(--steel); color: var(--white); }
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); }
.stat { padding: clamp(2.5rem,6vh,4rem) clamp(1rem,2vw,2rem); border-left: 1px solid rgba(255,255,255,0.18); }
.stat:first-child { border-left: none; }
.stat .n { font-size: clamp(2.6rem, 5vw, 4.4rem); font-weight: 500; letter-spacing: -0.04em; line-height: 1; }
.stat .l { font-size: 0.76rem; letter-spacing: 0.18em; text-transform: uppercase; color: rgba(255,255,255,0.78); margin-top: 0.7rem; }

/* ============================================================
   06 — CONTACT
   ============================================================ */
.contact { background: var(--graphite); color: var(--white); }
.contact-split { display: grid; grid-template-columns: 1fr 1fr; min-height: 70vh; }
.contact-left { padding: clamp(3rem, 7vw, 6rem) clamp(2rem,5vw,5rem); display: flex; flex-direction: column; justify-content: center; border-right: 1px solid var(--line-dark); position: relative; }
.contact-left h2 { font-size: clamp(2rem, 4.5vw, 4rem); font-weight: 500; letter-spacing: -0.035em; line-height: 0.98; margin: 1.4rem 0 2rem; }
.contact-left h2 em { font-style: italic; color: var(--steel-bright); }
.contact-block { border-top: 1px solid var(--line-dark); padding: 1.4rem 0; display: grid; grid-template-columns: 130px 1fr; gap: 1rem; }
.contact-block .k { font-size: 0.72rem; letter-spacing: 0.2em; text-transform: uppercase; color: var(--steel-bright); padding-top: 4px; }
.contact-block .v { font-size: 1.05rem; color: var(--white); }
.contact-block .v a:hover { color: var(--steel-bright); }
.contact-block .v small { display: block; color: var(--concrete-mid); font-size: 0.84rem; margin-top: 2px; }

.contact-right { padding: clamp(3rem, 7vw, 6rem) clamp(2rem,5vw,5rem); display: flex; flex-direction: column; justify-content: center; }
.form-row { margin-bottom: 1.5rem; }
.form-row label { display: block; font-size: 0.72rem; letter-spacing: 0.2em; text-transform: uppercase; color: var(--concrete-mid); margin-bottom: 0.55rem; }
.form-row input, .form-row textarea, .form-row select {
  width: 100%; background: transparent; border: none; border-bottom: 1px solid var(--line-dark);
  color: var(--white); font-family: var(--font); font-size: 1rem; padding: 0.6rem 0; transition: border-color 0.4s;
}
.form-row textarea { resize: vertical; min-height: 90px; }
.form-row input:focus, .form-row textarea:focus, .form-row select:focus { outline: none; border-bottom-color: var(--steel-bright); }
.form-row select option { background: var(--graphite); }
.form-row input::placeholder, .form-row textarea::placeholder { color: var(--concrete); }
.btn-submit {
  margin-top: 0.8rem; background: var(--steel-bright); color: var(--graphite); border: none; cursor: pointer;
  font-family: var(--font); font-weight: 600; font-size: 0.78rem; letter-spacing: 0.18em; text-transform: uppercase;
  padding: 1.1rem 2rem; display: inline-flex; align-items: center; gap: 0.8rem; transition: gap 0.4s var(--ease), background 0.4s;
  width: 100%; justify-content: center;
}
.btn-submit:hover { gap: 1.3rem; background: var(--white); }
.form-note { font-size: 0.78rem; color: var(--concrete); margin-top: 1rem; }
.form-note a { color: var(--steel-bright); }
.form-msg { margin-top: 1rem; font-size: 0.86rem; color: var(--steel-bright); min-height: 1.2em; }

/* ============================================================
   FOOTER
   ============================================================ */
.site-footer { background: var(--graphite-2); color: var(--white); padding-top: clamp(3.5rem, 8vh, 6rem); border-top: 1px solid var(--line-dark); }
.footer-top { display: grid; grid-template-columns: 1.5fr 1fr 1fr; gap: 2.5rem; padding-bottom: clamp(2.5rem,6vh,4rem); border-bottom: 1px solid var(--line-dark); }
.footer-top .brand { margin-bottom: 1.4rem; }
.footer-about { color: var(--concrete-mid); max-width: 42ch; font-size: 0.92rem; }
.footer-col h5 { font-size: 0.72rem; letter-spacing: 0.22em; text-transform: uppercase; color: var(--steel-bright); margin-bottom: 1.2rem; }
.footer-col ul li { margin-bottom: 0.7rem; }
.footer-col ul li a { color: var(--concrete-mid); font-size: 0.92rem; transition: color 0.3s; }
.footer-col ul li a:hover { color: var(--white); }
.footer-bottom { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 1rem; padding: 1.8rem 0; font-size: 0.78rem; color: var(--concrete); }
.footer-bottom a { color: var(--steel-bright); }
.footer-bottom .fb-links { display: flex; gap: 1.6rem; }

.back-top {
  position: fixed; right: 1.6rem; bottom: 1.6rem; width: 46px; height: 46px; z-index: 120;
  background: var(--steel); color: var(--white); display: grid; place-items: center; font-size: 1.1rem;
  opacity: 0; pointer-events: none; transition: opacity 0.4s, transform 0.4s var(--ease); transform: translateY(10px);
  border: 1px solid var(--steel-bright);
}
.back-top.show { opacity: 1; pointer-events: auto; transform: none; }
.back-top:hover { background: var(--steel-bright); color: var(--graphite); }

/* ============================================================
   PRIVACY PAGE
   ============================================================ */
.policy-page { background: var(--paper); }
.policy-hero { background: var(--graphite); color: var(--white); padding: 160px 0 clamp(3rem,7vh,5rem); position: relative; overflow: hidden; }
.policy-hero::after {
  content: ""; position: absolute; inset: 0; opacity: 0.4;
  background-image: linear-gradient(var(--line-dark) 1px, transparent 1px), linear-gradient(90deg, var(--line-dark) 1px, transparent 1px);
  background-size: 60px 60px; -webkit-mask-image: linear-gradient(90deg, transparent, #000); mask-image: linear-gradient(90deg, transparent, #000);
}
.policy-hero .shell { position: relative; z-index: 1; }
.policy-hero h1 { font-size: clamp(2.4rem, 6vw, 5rem); font-weight: 500; letter-spacing: -0.04em; margin: 1.2rem 0 1.2rem; }
.policy-hero p { max-width: 60ch; color: var(--concrete-soft); }
.policy-meta { font-size: 0.74rem; letter-spacing: 0.24em; text-transform: uppercase; color: var(--steel-bright); }

.policy-body { padding: clamp(3rem,8vh,6rem) 0; }
.policy-layout { display: grid; grid-template-columns: 260px 1fr; gap: clamp(2rem,5vw,5rem); align-items: start; }
.policy-toc { position: sticky; top: 110px; border-left: 2px solid var(--steel-line); padding-left: 1.4rem; }
.policy-toc strong { display: block; font-size: 0.72rem; letter-spacing: 0.22em; text-transform: uppercase; color: var(--concrete); margin-bottom: 1rem; }
.policy-toc ol { list-style: none; counter-reset: toc; }
.policy-toc ol li { counter-increment: toc; margin-bottom: 0.6rem; }
.policy-toc ol li a { font-size: 0.86rem; color: #44464a; display: flex; gap: 0.6rem; transition: color 0.3s; }
.policy-toc ol li a::before { content: counter(toc, decimal-leading-zero); color: var(--steel); font-variant-numeric: tabular-nums; }
.policy-toc ol li a:hover { color: var(--steel); }

.policy-content { max-width: 70ch; }
.policy-content h2 { font-size: clamp(1.3rem, 2.2vw, 1.8rem); font-weight: 600; letter-spacing: -0.02em; margin: 2.6rem 0 1rem; padding-top: 1rem; border-top: 1px solid var(--line-light); }
.policy-content h2:first-child { border-top: none; padding-top: 0; margin-top: 0; }
.policy-content h3 { font-size: 1.05rem; font-weight: 600; margin: 1.6rem 0 0.6rem; color: var(--steel); }
.policy-content p { color: #3f4144; margin-bottom: 1rem; }
.policy-content ul { margin: 0 0 1.2rem; padding-left: 0; }
.policy-content ul li { position: relative; padding-left: 1.6rem; margin-bottom: 0.6rem; color: #3f4144; }
.policy-content ul li::before { content: "▪"; position: absolute; left: 0; color: var(--steel); }
.policy-content a { color: var(--steel); text-decoration: underline; text-underline-offset: 3px; }

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 1024px) {
  .phil-split, .contact-split { grid-template-columns: 1fr; }
  .phil-visual { min-height: 50vh; }
  .exc-grid { grid-template-columns: 1fr; gap: 2.5rem; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .stat:nth-child(3) { border-left: none; }
  .stat:nth-child(n+3) { border-top: 1px solid rgba(255,255,255,0.18); }
  .tl-track { grid-template-columns: repeat(2, 1fr); }
  .tl-step { border-top: 1px solid var(--line-dark); }
  .footer-top { grid-template-columns: 1fr 1fr; }
  .policy-layout { grid-template-columns: 1fr; }
  .policy-toc { position: static; }
  .contact-left { border-right: none; border-bottom: 1px solid var(--line-dark); }
}

@media (max-width: 760px) {
  .nav-links, .header-cta { display: none; }
  .menu-toggle { display: flex; }
  .hero-side { display: none; }
  .proj-row { grid-template-columns: 60px 1fr; row-gap: 0.6rem; align-items: start; }
  .proj-row .p-meta, .proj-row .p-loc { grid-column: 2; text-align: left; }
  .proj-row .p-loc { color: var(--steel-bright); }
  .proj-row .p-inline { display: block; grid-column: 1 / -1; aspect-ratio: 16/10; overflow: hidden; margin-top: 0.4rem; }
  .proj-row .p-inline img { width: 100%; height: 100%; object-fit: cover; }
  .proj-thumb { display: none !important; }
  .gallery { grid-auto-rows: 30vw; }
  .g-a { grid-column: span 12; grid-row: span 2; }
  .g-b, .g-c { grid-column: span 12; grid-row: span 1; }
  .g-d, .g-e, .g-f { grid-column: span 12; grid-row: span 1; }
  .g-item .cap { opacity: 1; transform: none; }
  .g-item::after { opacity: 1; }
  .stats-grid { grid-template-columns: 1fr; }
  .stat { border-left: none; border-top: 1px solid rgba(255,255,255,0.18); }
  .stat:first-child { border-top: none; }
  .footer-top { grid-template-columns: 1fr; }
  .contact-block { grid-template-columns: 1fr; gap: 0.3rem; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.001ms !important; transition-duration: 0.001ms !important; }
  .reveal { opacity: 1; transform: none; }
}