/* ============================================================
   FERRO DESIGN AND FABRICATION
   Brand: industrial, premium, East Austin design-led
   Palette: Iron Black, Charcoal, Forge Copper, Steel, Mill White
   ============================================================ */

:root {
  --iron: #0E0E10;
  --char: #1C1F22;
  --char-2: #24282C;
  --copper: #C97B3C;
  --copper-2: #E29254;
  --steel: #A8AEB4;
  --steel-2: #6F7479;
  --mill: #F4F1EC;
  --mill-2: #EAE5DC;
  --line: rgba(255,255,255,0.08);
  --line-dark: rgba(0,0,0,0.08);

  --r-sm: 4px;
  --r-md: 8px;
  --r-lg: 16px;

  --shadow-sm: 0 1px 2px rgba(0,0,0,0.06), 0 2px 6px rgba(0,0,0,0.04);
  --shadow-md: 0 6px 24px rgba(0,0,0,0.10), 0 2px 6px rgba(0,0,0,0.06);
  --shadow-lg: 0 18px 48px rgba(0,0,0,0.18);

  --maxw: 1240px;

  --font-display: 'Anton', 'Bebas Neue', Impact, sans-serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

* { box-sizing: border-box; }
*::selection { background: var(--copper); color: var(--iron); }

html { scroll-behavior: smooth; overflow-x: hidden; }
body {
  margin: 0;
  font-family: var(--font-body);
  font-weight: 400;
  color: #1B1D20;
  background: var(--mill);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  max-width: 100vw;
}
section, .nav, .topbar, .foot, .strip { overflow-x: hidden; }

img { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
a:hover { color: var(--copper); }
ul { padding: 0; margin: 0; list-style: none; }
button { font-family: inherit; cursor: pointer; }

h1, h2, h3 {
  font-family: var(--font-display);
  font-weight: 400;
  letter-spacing: 0.01em;
  line-height: 1.05;
  margin: 0 0 0.5em;
  text-transform: uppercase;
}
h1 { font-size: clamp(40px, 7vw, 92px); }
h2 { font-size: clamp(30px, 4.5vw, 58px); }
h3 { font-size: clamp(20px, 2vw, 26px); letter-spacing: 0.02em; }

p { margin: 0 0 1em; }

/* ============================================================
   BUTTONS
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 22px;
  border-radius: var(--r-md);
  font-weight: 600;
  font-size: 14px;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  border: 1.5px solid transparent;
  transition: all 0.2s ease;
  white-space: nowrap;
}
.btn--primary { background: var(--copper); color: var(--iron); border-color: var(--copper); }
.btn--primary:hover { background: var(--copper-2); border-color: var(--copper-2); color: var(--iron); transform: translateY(-1px); }
.btn--secondary { background: var(--iron); color: var(--mill); border-color: var(--iron); }
.btn--secondary:hover { background: var(--char-2); border-color: var(--char-2); color: var(--copper-2); }
.btn--ghost { background: transparent; color: var(--iron); border-color: rgba(14,14,16,0.15); }
.btn--ghost:hover { border-color: var(--iron); color: var(--iron); }
.btn--lg { padding: 16px 28px; font-size: 15px; }
.btn--block { display: flex; width: 100%; margin-top: 8px; }

.link {
  color: var(--copper);
  font-weight: 600;
  font-size: 14px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  border-bottom: 1.5px solid var(--copper);
  padding-bottom: 2px;
  transition: all 0.2s ease;
}
.link:hover { border-bottom-color: transparent; color: var(--copper-2); }

/* ============================================================
   TOPBAR
   ============================================================ */
.topbar {
  background: var(--iron);
  color: var(--mill);
  font-size: 13px;
}
.topbar__inner {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 8px 24px;
  display: flex;
  align-items: center;
  gap: 14px;
  justify-content: center;
  flex-wrap: wrap;
}
.topbar__pill {
  background: var(--copper);
  color: var(--iron);
  font-weight: 700;
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 3px 10px;
  border-radius: 999px;
}
.topbar__link {
  color: var(--copper-2);
  font-weight: 600;
  border-bottom: 1px solid currentColor;
}

/* ============================================================
   NAV
   ============================================================ */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(244, 241, 236, 0.92);
  backdrop-filter: saturate(180%) blur(12px);
  -webkit-backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--line-dark);
}
.nav__inner {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 14px 24px;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 24px;
}
.nav__brand {
  display: flex;
  align-items: center;
  gap: 10px;
}
.brand__type {
  display: flex;
  flex-direction: column;
  line-height: 1;
}
.brand__type strong {
  font-family: var(--font-display);
  font-size: 22px;
  letter-spacing: 0.08em;
  color: var(--iron);
}
.brand__type em {
  font-style: normal;
  font-size: 10px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--steel-2);
  margin-top: 2px;
}
.brand__type--lg strong { font-size: 36px; }
.brand__type--lg em { font-size: 12px; }

/* Stenciled FERRO logo (SVG matches uploaded logo aesthetic) */
.brand__logo {
  display: inline-block;
  color: var(--iron);
  height: 44px;
}
.brand__logo svg {
  height: 100%;
  width: auto;
  display: block;
}
.brand__logo-img {
  height: 48px;
  max-width: 220px;
  width: auto;
  display: block;
  object-fit: contain;
}
.foot .brand__logo-img { height: 60px; max-width: 240px; }
.foot .brand__logo { color: var(--mill); height: 56px; }
.hero .brand__logo { color: var(--mill); height: 60px; }

.nav__menu {
  display: flex;
  gap: 28px;
  justify-content: center;
}
.nav__menu a {
  font-size: 14px;
  font-weight: 500;
  color: var(--iron);
  position: relative;
}
.nav__menu a:hover { color: var(--copper); }
.nav__menu a::after {
  content: '';
  position: absolute;
  left: 50%;
  bottom: -6px;
  width: 0;
  height: 2px;
  background: var(--copper);
  transition: all 0.2s ease;
  transform: translateX(-50%);
}
.nav__menu a:hover::after { width: 100%; }

.nav__cta {
  display: flex;
  align-items: center;
  gap: 10px;
}

.nav__toggle {
  display: none;
  background: none;
  border: none;
  width: 36px;
  height: 36px;
  padding: 0;
  flex-direction: column;
  gap: 5px;
  align-items: center;
  justify-content: center;
}
.nav__toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--iron);
  transition: all 0.2s ease;
}

/* ============================================================
   HERO
   ============================================================ */
.hero {
  position: relative;
  min-height: 86vh;
  background: var(--iron);
  color: var(--mill);
  overflow: hidden;
  display: flex;
  align-items: center;
}
.hero__bg {
  position: absolute; inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 20% 30%, rgba(201,123,60,0.18) 0%, transparent 60%),
    radial-gradient(ellipse 60% 50% at 90% 80%, rgba(168,174,180,0.08) 0%, transparent 50%),
    linear-gradient(180deg, #0E0E10 0%, #16181B 100%);
}
.hero__bg::before {
  content: '';
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.025) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 80% 70% at 50% 50%, black 30%, transparent 80%);
}
.hero__inner {
  position: relative;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 120px 24px 80px;
  width: 100%;
}
.hero__eyebrow {
  font-size: 12px;
  letter-spacing: 0.3em;
  color: var(--copper);
  font-weight: 600;
  margin-bottom: 24px;
}
.hero__title {
  margin: 0;
  color: var(--mill);
}
.hero__title span { color: var(--copper); display: inline-block; }
.hero__lede {
  margin-top: 28px;
  max-width: 620px;
  font-size: 18px;
  color: var(--steel);
  line-height: 1.6;
}
.hero__ctas {
  margin-top: 36px;
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}
.hero__ctas .btn--secondary { background: transparent; color: var(--mill); border-color: var(--mill); }
.hero__ctas .btn--secondary:hover { background: var(--mill); color: var(--iron); }
.hero__trust {
  margin-top: 56px;
  display: flex;
  flex-wrap: wrap;
  gap: 32px;
  padding-top: 28px;
  border-top: 1px solid var(--line);
  font-size: 13px;
  color: var(--steel);
}
.hero__trust li strong {
  color: var(--mill);
  font-family: var(--font-display);
  font-size: 22px;
  display: block;
  margin-bottom: 2px;
  letter-spacing: 0.04em;
}

/* ============================================================
   TRUST STRIP
   ============================================================ */
.strip {
  background: var(--mill-2);
  border-top: 1px solid var(--line-dark);
  border-bottom: 1px solid var(--line-dark);
  padding: 22px 24px;
}
.strip__inner {
  max-width: var(--maxw);
  margin: 0 auto;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 14px 24px;
  font-size: 13px;
  color: var(--steel-2);
}
.strip__inner p { margin: 0; font-weight: 500; }
.strip__inner ul {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 14px;
}
.strip__inner ul li {
  font-weight: 600;
  color: var(--iron);
  position: relative;
}
.strip__inner ul li:not(:last-child)::after {
  content: '·';
  margin-left: 14px;
  color: var(--steel-2);
}

/* ============================================================
   SECTIONS
   ============================================================ */
.section__head {
  max-width: var(--maxw);
  margin: 0 auto 56px;
  padding: 0 24px;
  text-align: center;
}
.section__head--light { color: var(--mill); }
.section__head .eyebrow { color: var(--copper); }
.section__head .lede { max-width: 640px; margin: 0 auto; color: var(--steel-2); font-size: 17px; }
.section__head--light .lede { color: var(--steel); }
.eyebrow {
  font-size: 12px;
  letter-spacing: 0.3em;
  font-weight: 600;
  color: var(--copper);
  text-transform: uppercase;
  margin-bottom: 12px;
}
.lede { font-size: 17px; color: var(--steel-2); }

.section__cta { text-align: center; margin-top: 48px; }

/* ============================================================
   FOLDER GALLERY (replaces old tile grid)
   ============================================================ */
.gallery {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 24px;
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 14px;
}
.gal-card {
  background: var(--mill);
  border: 1px solid var(--line-dark);
  border-radius: 12px;
  padding: 12px 12px 14px;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  gap: 12px;
  text-align: left;
  transition: all 0.2s ease;
  color: inherit;
  font-family: inherit;
}
.gal-card:hover {
  transform: translateY(-3px);
  border-color: var(--copper);
  box-shadow: var(--shadow-md);
}
.gal-card__art {
  position: relative;
  aspect-ratio: 4/3;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}
.gal-card__art svg {
  width: 44%;
  height: auto;
  opacity: 0.7;
  filter: drop-shadow(0 2px 6px rgba(0,0,0,0.3));
}
.gal-card__cover {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}
.gal-card:hover .gal-card__cover { transform: scale(1.05); }
.gal-card__count {
  position: absolute;
  top: 8px;
  right: 10px;
  background: rgba(14,14,16,0.7);
  color: var(--copper-2);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.06em;
  padding: 2px 8px;
  border-radius: 999px;
  backdrop-filter: blur(8px);
  min-width: 16px;
  text-align: center;
}
.gal-card__count:empty { display: none; }
.gal-card__body {
  display: flex;
  flex-direction: column;
  gap: 3px;
}
.gal-card__title {
  font-family: var(--font-display);
  font-size: 16px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--iron);
}
.gal-card__blurb {
  font-size: 12px;
  color: var(--steel-2);
  line-height: 1.4;
}

/* Lightbox */
.lightbox {
  position: fixed;
  inset: 0;
  background: rgba(14,14,16,0.94);
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 60px 24px 24px;
  overflow-y: auto;
}
.lightbox[hidden] { display: none; }
.lightbox__close {
  position: absolute;
  top: 18px; right: 22px;
  width: 40px; height: 40px;
  border-radius: 50%;
  border: 1px solid var(--line);
  background: var(--char);
  color: var(--mill);
  font-size: 24px;
  cursor: pointer;
  display: flex; align-items: center; justify-content: center;
}
.lightbox__close:hover { background: var(--copper); color: var(--iron); }
.lightbox__shell {
  max-width: 1100px;
  width: 100%;
  margin: auto;
}
.lightbox__head { color: var(--mill); margin-bottom: 24px; }
.lightbox__head .lightbox__eyebrow {
  font-size: 11px;
  letter-spacing: 0.28em;
  color: var(--copper);
  font-weight: 600;
  text-transform: uppercase;
  margin: 0 0 6px;
}
.lightbox__head h3 {
  font-family: var(--font-display);
  font-size: clamp(26px, 3.5vw, 40px);
  margin: 0;
  color: var(--mill);
}
.lightbox__grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 12px;
}
.lightbox__tile {
  display: block;
  aspect-ratio: 4/3;
  background: var(--char);
  border-radius: 8px;
  overflow: hidden;
  cursor: zoom-in;
}
.lightbox__tile img {
  width: 100%; height: 100%; object-fit: cover;
  transition: transform 0.3s ease;
}
.lightbox__tile:hover img { transform: scale(1.04); }
.lightbox__placeholder {
  aspect-ratio: 4/3;
  border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  color: var(--steel);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border: 1px solid var(--line);
}
.lightbox__empty {
  color: var(--steel);
  font-size: 14px;
  text-align: center;
  margin-top: 24px;
}
.lightbox__empty code {
  background: var(--char);
  color: var(--copper-2);
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 12px;
}

/* ============================================================
   LEGACY (kept for any references)
   ============================================================ */
.work { padding: 80px 0; }
.work__grid {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 24px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  grid-auto-rows: 260px;
  gap: 14px;
}
.work__tile {
  position: relative;
  overflow: hidden;
  border-radius: var(--r-md);
  background: var(--char);
  display: block;
  cursor: pointer;
  transition: transform 0.3s ease;
}
.work__tile--lg {
  grid-row: span 2;
  grid-column: span 2;
}
.work__tile img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
  background: linear-gradient(135deg, #2A2D31 0%, #16181B 100%);
}
.work__tile:hover img { transform: scale(1.06); }
.work__meta {
  position: absolute;
  inset: auto 0 0 0;
  padding: 16px;
  background: linear-gradient(180deg, transparent 0%, rgba(14,14,16,0.85) 100%);
  color: var(--mill);
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.work__meta span {
  font-family: var(--font-display);
  font-size: 17px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.work__meta em {
  font-style: normal;
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--copper-2);
}

/* ============================================================
   SERVICES
   ============================================================ */
.services { padding: 100px 0; background: var(--mill-2); }
.services__grid {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 24px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.service {
  background: var(--mill);
  border-radius: var(--r-lg);
  padding: 36px 30px;
  border: 1px solid var(--line-dark);
  position: relative;
  display: flex;
  flex-direction: column;
  transition: all 0.3s ease;
}
.service:hover {
  transform: translateY(-4px);
  border-color: var(--copper);
  box-shadow: var(--shadow-md);
}
.service--featured {
  background: var(--iron);
  color: var(--mill);
  border-color: var(--copper);
}
.service--featured h3 { color: var(--mill); }
.service--featured p { color: var(--steel); }
.service--featured ul li { color: var(--steel); }
.service--featured .link { color: var(--copper-2); border-bottom-color: var(--copper-2); }
.service__badge {
  position: absolute;
  top: -10px;
  left: 30px;
  background: var(--copper);
  color: var(--iron);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  padding: 4px 10px;
  border-radius: 999px;
}
.service__icon {
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(201,123,60,0.10);
  border-radius: var(--r-md);
  margin-bottom: 22px;
}
.service--featured .service__icon { background: rgba(201,123,60,0.15); }
.service__icon svg { width: 32px; height: 32px; }
.service ul {
  margin: 18px 0 24px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  flex: 1;
}
.service ul li {
  font-size: 14px;
  color: var(--steel-2);
  padding-left: 18px;
  position: relative;
}
.service ul li::before {
  content: '';
  position: absolute;
  left: 0; top: 9px;
  width: 8px; height: 2px;
  background: var(--copper);
}

/* ============================================================
   3D CONFIGURATOR
   ============================================================ */
.configurator {
  background: var(--iron);
  color: var(--mill);
  padding: 100px 0;
  position: relative;
}
.configurator::before {
  content: '';
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.02) 1px, transparent 1px);
  background-size: 80px 80px;
  pointer-events: none;
}
.configurator__shell {
  position: relative;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 24px;
  display: grid;
  grid-template-columns: 1fr 380px;
  gap: 28px;
  align-items: stretch;
}
.configurator__canvas-wrap {
  position: relative;
  background: linear-gradient(135deg, #16181B 0%, #0E0E10 100%);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  overflow: hidden;
  min-height: 540px;
}
#ferroCanvas {
  display: block;
  width: 100%;
  height: 100%;
  cursor: grab;
}
#ferroCanvas:active { cursor: grabbing; }
.configurator__hint {
  position: absolute;
  bottom: 16px;
  left: 16px;
  display: flex;
  align-items: center;
  gap: 6px;
  background: rgba(14,14,16,0.7);
  color: var(--steel);
  padding: 6px 12px;
  border-radius: 999px;
  font-size: 12px;
  border: 1px solid var(--line);
}

.configurator__panel {
  background: var(--char);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  padding: 28px;
  display: flex;
  flex-direction: column;
  gap: 22px;
}
.panel__group { display: flex; flex-direction: column; gap: 10px; }
.panel__label {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--steel);
  margin: 0;
}
.panel__options {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}
.opt {
  background: var(--char-2);
  color: var(--mill);
  border: 1px solid var(--line);
  padding: 10px 12px;
  border-radius: var(--r-sm);
  font-size: 13px;
  font-weight: 500;
  text-align: left;
  transition: all 0.15s ease;
}
.opt:hover { border-color: var(--copper); color: var(--copper-2); }
.opt[aria-pressed="true"] {
  background: var(--copper);
  color: var(--iron);
  border-color: var(--copper);
  font-weight: 600;
}
.opt--swatch {
  display: flex;
  align-items: center;
  gap: 10px;
}
.opt--swatch::before {
  content: '';
  width: 18px; height: 18px;
  border-radius: 4px;
  background: var(--sw, #999);
  border: 1px solid rgba(255,255,255,0.15);
  flex-shrink: 0;
}
.opt--swatch[aria-pressed="true"] { color: var(--iron); }
.opt--swatch[aria-pressed="true"]::before { border-color: var(--iron); }

input[type="range"] {
  width: 100%;
  -webkit-appearance: none;
  background: transparent;
}
input[type="range"]::-webkit-slider-runnable-track {
  height: 4px;
  background: var(--char-2);
  border-radius: 2px;
}
input[type="range"]::-moz-range-track {
  height: 4px;
  background: var(--char-2);
  border-radius: 2px;
}
input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 18px; height: 18px;
  background: var(--copper);
  border-radius: 50%;
  margin-top: -7px;
  cursor: pointer;
  box-shadow: 0 2px 8px rgba(201,123,60,0.4);
}
input[type="range"]::-moz-range-thumb {
  width: 18px; height: 18px;
  background: var(--copper);
  border-radius: 50%;
  border: none;
  cursor: pointer;
}
.panel__readout { font-size: 14px; color: var(--steel); margin-top: 4px; }
.panel__readout span { color: var(--mill); font-weight: 600; }

.panel__estimate {
  background: rgba(201,123,60,0.08);
  border: 1px solid rgba(201,123,60,0.2);
  border-radius: var(--r-md);
  padding: 16px;
}
.estimate__value {
  font-family: var(--font-display);
  font-size: 28px;
  letter-spacing: 0.04em;
  color: var(--copper-2);
}
.estimate__note { font-size: 12px; color: var(--steel-2); margin: 4px 0 0; line-height: 1.5; }
.panel__small { font-size: 11px; color: var(--steel-2); margin: 0; text-align: center; }

/* ============================================================
   PROCESS
   ============================================================ */
.process { padding: 100px 0; background: var(--mill); }
.process__steps {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 24px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  counter-reset: step;
}
.process__steps li {
  list-style: none;
  padding: 28px 22px;
  border: 1px solid var(--line-dark);
  border-radius: var(--r-lg);
  background: var(--mill-2);
  position: relative;
}
.step__num {
  font-family: var(--font-display);
  font-size: 14px;
  letter-spacing: 0.2em;
  color: var(--copper);
  display: block;
  margin-bottom: 12px;
}
.process__steps h3 { margin-bottom: 6px; }
.process__steps p { font-size: 14px; color: var(--steel-2); margin: 0; }

/* ============================================================
   ABOUT
   ============================================================ */
.about { padding: 100px 0; background: var(--iron); color: var(--mill); }
.about__grid {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 24px;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 56px;
  align-items: center;
}
.about__copy h2 { color: var(--mill); }
.about__copy p { color: var(--steel); font-size: 16px; max-width: 540px; }
.about__stats {
  margin-top: 32px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  padding-top: 28px;
  border-top: 1px solid var(--line);
}
.about__stats > div { display: flex; flex-direction: column; gap: 4px; }
.about__stats strong {
  font-family: var(--font-display);
  font-size: 36px;
  color: var(--copper-2);
  letter-spacing: 0.04em;
}
.about__stats span { font-size: 11px; letter-spacing: 0.16em; text-transform: uppercase; color: var(--steel); }

.about__photo {
  aspect-ratio: 4/5;
  background: linear-gradient(135deg, #2A2D31 0%, #16181B 100%);
  border-radius: var(--r-lg);
  overflow: hidden;
  border: 1px solid var(--line);
}
.about__photo img { width: 100%; height: 100%; object-fit: cover; }

/* ============================================================
   TESTIMONIALS
   ============================================================ */
.testimonials { padding: 100px 0; background: var(--mill-2); }
.testimonials__grid {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 24px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.testimonials figure {
  background: var(--mill);
  padding: 30px;
  border-radius: var(--r-lg);
  border: 1px solid var(--line-dark);
  margin: 0;
  position: relative;
}
.testimonials figure::before {
  content: '"';
  font-family: var(--font-display);
  font-size: 72px;
  color: var(--copper);
  line-height: 1;
  position: absolute;
  top: 14px;
  left: 22px;
  opacity: 0.5;
}
.testimonials blockquote {
  margin: 24px 0 0;
  font-size: 16px;
  color: var(--iron);
  line-height: 1.6;
  font-style: italic;
}
.testimonials figcaption {
  margin-top: 18px;
  padding-top: 16px;
  border-top: 1px solid var(--line-dark);
  font-size: 13px;
}
.testimonials figcaption strong { display: block; color: var(--iron); }
.testimonials figcaption span { color: var(--steel-2); }
.testimonials__note {
  text-align: center;
  margin-top: 32px;
  font-size: 14px;
  color: var(--steel-2);
}
.testimonials__note a { color: var(--copper); font-weight: 600; }

/* ============================================================
   FAQ
   ============================================================ */
.faq { padding: 100px 0; background: var(--mill); }
.faq__list {
  max-width: 800px;
  margin: 0 auto;
  padding: 0 24px;
}
.faq__list details {
  border-bottom: 1px solid var(--line-dark);
  padding: 22px 0;
  transition: all 0.2s ease;
}
.faq__list summary {
  font-family: var(--font-display);
  font-size: 18px;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  color: var(--iron);
}
.faq__list summary::-webkit-details-marker { display: none; }
.faq__list summary::after {
  content: '+';
  font-size: 28px;
  color: var(--copper);
  font-weight: 300;
  line-height: 1;
  transition: transform 0.2s ease;
}
.faq__list details[open] summary::after { transform: rotate(45deg); }
.faq__list details p {
  margin: 14px 0 0;
  color: var(--steel-2);
  font-size: 15px;
  line-height: 1.7;
}

/* ============================================================
   QUOTE FORM
   ============================================================ */
.quote { padding: 100px 0; background: var(--iron); color: var(--mill); }
.quote__grid {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 24px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: start;
}
.quote__copy h2 { color: var(--mill); }
.quote__copy .lede { color: var(--steel); }
.quote__benefits {
  margin: 28px 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.quote__benefits li {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--steel);
  font-size: 15px;
}
.quote__benefits li span {
  color: var(--copper);
  font-weight: 700;
  font-size: 16px;
  width: 20px;
}
.quote__contact {
  margin-top: 32px;
  padding-top: 28px;
  border-top: 1px solid var(--line);
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.quote__contact-line { font-size: 15px; color: var(--steel); }
.quote__contact-line strong {
  display: inline-block;
  width: 70px;
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--copper);
}

.quote__form {
  background: var(--char);
  border-radius: var(--r-lg);
  padding: 36px;
  border: 1px solid var(--line);
  display: flex;
  flex-direction: column;
  gap: 18px;
}
.field { display: flex; flex-direction: column; gap: 8px; }
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.field label {
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  font-weight: 600;
  color: var(--steel);
}
.field input, .field select, .field textarea {
  background: var(--iron);
  border: 1px solid var(--line);
  border-radius: var(--r-sm);
  padding: 12px 14px;
  color: var(--mill);
  font-family: inherit;
  font-size: 15px;
  transition: border-color 0.15s ease;
}
.field input:focus, .field select:focus, .field textarea:focus {
  outline: none;
  border-color: var(--copper);
}
.field textarea { resize: vertical; min-height: 100px; }
.field select { cursor: pointer; }

.quote__small { font-size: 12px; color: var(--steel-2); margin: 6px 0 0; text-align: center; line-height: 1.5; }
.quote__status { font-size: 14px; margin-top: 4px; text-align: center; min-height: 20px; }
.quote__status.ok { color: #6FCF97; }
.quote__status.err { color: #EB5757; }

/* ============================================================
   FOOTER
   ============================================================ */
.foot { background: var(--char); color: var(--steel); padding: 60px 0 0; border-top: 1px solid var(--line); }

/* Footer wordmark — high contrast on dark footer */
.foot__wordmark {
  display: flex;
  flex-direction: column;
  line-height: 1;
  margin-bottom: 16px;
}
.foot__wordmark strong {
  font-family: var(--font-display);
  font-size: 44px;
  letter-spacing: 0.08em;
  color: var(--mill);
}
.foot__wordmark em {
  font-style: normal;
  font-size: 11px;
  letter-spacing: 0.32em;
  text-transform: uppercase;
  color: var(--copper-2);
  margin-top: 6px;
}
.foot__inner {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 24px;
  display: grid;
  grid-template-columns: 1.2fr 2fr;
  gap: 48px;
  padding-bottom: 48px;
}
.foot__brand p { font-size: 14px; max-width: 380px; }
.foot__nap { font-size: 13px; line-height: 1.9; }
.foot__nap strong { color: var(--mill); display: inline-block; width: 70px; font-size: 11px; letter-spacing: 0.16em; text-transform: uppercase; }
.foot__nap a:hover { color: var(--copper-2); }

.foot__cols {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.foot__head {
  font-family: var(--font-display);
  letter-spacing: 0.1em;
  font-size: 14px;
  color: var(--copper);
  margin: 0 0 14px;
}
.foot__cols ul li { padding: 4px 0; font-size: 13px; }
.foot__cols ul li a:hover { color: var(--copper-2); }

.foot__bottom {
  border-top: 1px solid var(--line);
  padding: 20px 24px;
  max-width: var(--maxw);
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  font-size: 12px;
  color: var(--steel-2);
}
.foot__bottom p { margin: 0; }

/* ============================================================
   DOOR STUDIO — LUXURY VISUALIZER
   ============================================================ */
.visualizer {
  background: var(--iron);
  color: var(--mill);
  padding: 72px 0 80px;
  position: relative;
}
.visualizer::before {
  content: '';
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.018) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.018) 1px, transparent 1px);
  background-size: 80px 80px;
  pointer-events: none;
}

.studio {
  position: relative;
  max-width: 1100px;
  margin: 0 auto 48px;
  padding: 0 24px;
}

/* Tab bar — compact pills */
.studio__tabs {
  display: inline-flex;
  gap: 4px;
  margin-bottom: 18px;
  background: var(--char);
  border: 1px solid var(--line);
  padding: 4px;
  border-radius: 999px;
}
.tab {
  background: transparent;
  border: none;
  color: var(--steel);
  padding: 9px 18px;
  border-radius: 999px;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 8px;
  text-align: left;
  transition: all 0.2s ease;
  font-size: 13px;
  white-space: nowrap;
}
.tab:hover { color: var(--mill); }
.tab.is-active {
  background: var(--copper);
  color: var(--iron);
}
.tab__num {
  font-family: var(--font-display);
  font-size: 13px;
  letter-spacing: 0.06em;
  color: inherit;
  opacity: 0.6;
}
.tab.is-active .tab__num { opacity: 1; }
.tab__label { display: flex; align-items: center; gap: 6px; line-height: 1; }
.tab__label strong {
  font-family: var(--font-body);
  font-size: 13px;
  letter-spacing: 0.04em;
  font-weight: 600;
  text-transform: uppercase;
  color: inherit;
}
.tab__label em { display: none; }

.studio__body { position: relative; }
.studio__pane {
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: 16px;
  align-items: stretch;
}
.studio__pane:not(.is-active) { display: none; }

.studio__stage {
  position: relative;
  background: linear-gradient(160deg, #2A2D33 0%, #161A1F 50%, #0A0B0D 100%);
  border: 1px solid var(--line);
  border-radius: 12px;
  overflow: hidden;
  min-height: 440px;
  aspect-ratio: 4/3;
}
#houseCanvas {
  display: block;
  width: 100%;
  height: 100%;
  cursor: grab;
}
#houseCanvas:active { cursor: grabbing; }

.studio__overlay {
  position: absolute;
  inset: 16px;
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  pointer-events: none;
}
.studio__hint {
  display: flex;
  align-items: center;
  gap: 6px;
  background: rgba(14,14,16,0.7);
  color: var(--steel);
  padding: 6px 12px;
  border-radius: 999px;
  font-size: 12px;
  border: 1px solid var(--line);
  backdrop-filter: blur(8px);
}
.studio__chip {
  background: rgba(201,123,60,0.12);
  color: var(--copper-2);
  padding: 6px 14px;
  border-radius: 999px;
  font-size: 12px;
  letter-spacing: 0.08em;
  font-weight: 600;
  text-transform: uppercase;
  border: 1px solid rgba(201,123,60,0.3);
  backdrop-filter: blur(8px);
}

.studio__panel {
  background: var(--char);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  font-size: 13px;
}
.studio__label {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--copper);
  margin: 0;
}
.studio__door-name {
  font-family: var(--font-display);
  font-size: 22px;
  letter-spacing: 0.04em;
  color: var(--mill);
  margin: 2px 0 0;
}
.studio__door-meta {
  font-size: 13px;
  color: var(--steel);
  margin: 0;
  letter-spacing: 0.04em;
}
.studio__price-line {
  display: flex;
  align-items: baseline;
  gap: 8px;
  padding: 12px 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  margin: 12px 0 4px;
}
.studio__price {
  font-family: var(--font-display);
  font-size: 24px;
  letter-spacing: 0.04em;
  color: var(--copper-2);
}
.studio__price-note {
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--steel-2);
}
.studio__tips {
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
  list-style: none;
  padding: 0;
}
.studio__tips li {
  font-size: 13px;
  color: var(--steel);
  padding-left: 18px;
  position: relative;
  line-height: 1.5;
}
.studio__tips li::before {
  content: '';
  position: absolute; left: 0; top: 8px;
  width: 8px; height: 2px;
  background: var(--copper);
}

/* Upload (Your Home) mode */
.studio__stage--upload {
  background: linear-gradient(135deg, #1A1D21 0%, #0E0E10 100%);
  padding: 0;
}
.upload-drop {
  position: relative;
  width: 100%;
  height: 100%;
  min-height: 560px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.upload-drop.is-drag {
  background: rgba(201,123,60,0.08);
  outline: 2px dashed var(--copper);
  outline-offset: -8px;
}
.upload-drop__inner {
  text-align: center;
  padding: 40px;
  color: var(--steel);
  max-width: 420px;
}
.upload-drop__inner svg { color: var(--copper); margin: 0 auto 18px; display: block; opacity: 0.8; }
.upload-drop__inner h3 {
  color: var(--mill);
  font-size: 22px;
  letter-spacing: 0.04em;
  margin: 0 0 10px;
}
.upload-drop__inner p {
  font-size: 14px;
  margin-bottom: 22px;
  color: var(--steel);
}
.upload-drop__inner label.btn {
  cursor: pointer;
  display: inline-flex;
}
.upload-drop__small {
  font-size: 11px;
  color: var(--steel-2);
  margin-top: 14px;
  letter-spacing: 0.04em;
}

.upload-stage {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}
.upload-stage__photo {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  background-color: var(--char);
}
.upload-stage__door {
  position: absolute;
  transform: translate(-50%, -50%);
  width: 18%;
  filter: drop-shadow(0 8px 20px rgba(0,0,0,0.5));
  cursor: move;
  user-select: none;
  touch-action: none;
  transition: filter 0.2s ease;
}
.upload-stage__door:hover { filter: drop-shadow(0 8px 20px rgba(201,123,60,0.4)) drop-shadow(0 0 0 1px var(--copper)); }
.upload-stage__door svg { width: 100%; height: auto; display: block; pointer-events: none; }

.upload-tools {
  position: absolute;
  bottom: 12px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 6px;
  background: rgba(14,14,16,0.85);
  padding: 6px;
  border-radius: 999px;
  border: 1px solid var(--line);
  backdrop-filter: blur(8px);
}
.upload-tool {
  background: var(--char-2);
  border: 1px solid transparent;
  color: var(--mill);
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  font-size: 14px;
  cursor: pointer;
  padding: 0;
  transition: all 0.15s ease;
  gap: 4px;
}
.upload-tool:hover { background: var(--copper); color: var(--iron); }
#btnReset { width: auto; padding: 0 14px; font-size: 12px; letter-spacing: 0.08em; }
#btnNewPhoto { width: auto; padding: 0 14px; font-size: 12px; letter-spacing: 0.08em; }

/* Custom request mode */
.custom-request {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
  background: var(--char);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  padding: 36px;
}
.custom-request__col h3 {
  font-family: var(--font-display);
  font-size: 28px;
  letter-spacing: 0.04em;
  margin: 8px 0 14px;
}
.custom-request__col p {
  color: var(--steel);
  font-size: 15px;
  line-height: 1.6;
}
.custom-request__bullets {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: 22px;
  padding-top: 22px;
  border-top: 1px solid var(--line);
}
.custom-request__bullets > div {
  color: var(--steel);
  font-size: 14px;
}
.custom-request__bullets strong { color: var(--copper); margin-right: 8px; }

.custom-request__form { display: flex; flex-direction: column; gap: 16px; }
.custom-request__form .field input,
.custom-request__form .field select,
.custom-request__form .field textarea {
  background: var(--iron);
  border: 1px solid var(--line);
}
.custom-thumbs {
  display: flex;
  gap: 8px;
  margin-top: 10px;
  flex-wrap: wrap;
}
.custom-thumb {
  width: 60px;
  height: 60px;
  border-radius: var(--r-sm);
  background-size: cover;
  background-position: center;
  border: 1px solid var(--line);
}

/* ============================================================
   DOOR CATALOG
   ============================================================ */
.catalog {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
  position: relative;
}
.catalog__head {
  margin-bottom: 24px;
}
.catalog__head h3 {
  font-size: clamp(20px, 2.4vw, 26px);
  margin: 6px 0 8px;
  color: var(--mill);
}
.catalog__head .lede { color: var(--steel-2); max-width: 640px; font-size: 14px; }

.catalog__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
}
.catalog-card {
  background: var(--char);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 10px;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  text-align: center;
  transition: all 0.2s ease;
  color: inherit;
}
.catalog-card:hover {
  transform: translateY(-2px);
  border-color: var(--copper);
  background: var(--char-2);
}
.catalog-card.is-active {
  border-color: var(--copper);
  box-shadow: 0 0 0 1px var(--copper) inset, 0 8px 18px rgba(201,123,60,0.18);
}
.catalog-card__svg {
  display: block;
  width: 100%;
  background: radial-gradient(ellipse 80% 60% at 50% 40%, rgba(255,228,182,0.06), transparent 70%);
  padding: 6px 0 4px;
}
.catalog-card__svg svg {
  width: auto;
  max-width: 100%;
  height: 110px;
  display: block;
  margin: 0 auto;
  filter: drop-shadow(0 6px 12px rgba(0,0,0,0.4));
}
.catalog-card__body {
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.catalog-card__name {
  font-family: var(--font-display);
  font-size: 14px;
  letter-spacing: 0.05em;
  color: var(--mill);
  text-transform: uppercase;
}
.catalog-card__tag {
  font-size: 10px;
  color: var(--steel-2);
  letter-spacing: 0.04em;
  line-height: 1.3;
}
.catalog-card__price {
  font-size: 11px;
  color: var(--copper-2);
  font-weight: 600;
  margin-top: 2px;
  letter-spacing: 0.04em;
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 1024px) {
  .gallery { grid-template-columns: repeat(3, 1fr); }
  .work__grid { grid-template-columns: repeat(2, 1fr); }
  .services__grid { grid-template-columns: 1fr; }
  .process__steps { grid-template-columns: repeat(2, 1fr); }
  .testimonials__grid { grid-template-columns: 1fr; }
  .configurator__shell { grid-template-columns: 1fr; }
  .configurator__canvas-wrap { min-height: 420px; }
  .studio__pane { grid-template-columns: 1fr; }
  .studio__stage { min-height: 440px; }
  .upload-drop { min-height: 440px; }
  .studio__tabs { grid-template-columns: 1fr; gap: 6px; }
  .tab { padding: 14px 18px; }
  .catalog__grid { grid-template-columns: repeat(2, 1fr); }
  .custom-request { grid-template-columns: 1fr; padding: 24px; }
  .about__grid { grid-template-columns: 1fr; }
  .about__stats { grid-template-columns: repeat(2, 1fr); }
  .quote__grid { grid-template-columns: 1fr; }
  .foot__inner { grid-template-columns: 1fr; }
}

@media (max-width: 720px) {
  .gallery { grid-template-columns: repeat(2, 1fr); }
  .catalog__grid { grid-template-columns: repeat(2, 1fr); }
  .nav__menu { display: none; }
  .nav__cta .btn--ghost { display: none; }
  .nav__toggle { display: flex; }
  .nav__inner { grid-template-columns: 1fr auto auto; }

  .hero { min-height: 0; padding: 80px 0 40px; }
  .hero__inner { padding: 40px 24px 40px; }
  .hero__trust { gap: 16px 24px; }
  .hero__trust li strong { font-size: 18px; }

  .topbar__inner { font-size: 12px; gap: 8px; padding: 6px 14px; }

  .work__grid { grid-template-columns: 1fr; grid-auto-rows: 220px; }
  .work__tile--lg { grid-row: span 1; grid-column: span 1; }

  .process__steps { grid-template-columns: 1fr; }
  .about__stats { grid-template-columns: repeat(2, 1fr); }
  .foot__cols { grid-template-columns: 1fr; }
  .foot__bottom { flex-direction: column; gap: 6px; text-align: center; }

  .quote__form { padding: 24px; }
  .field-row { grid-template-columns: 1fr; }
}

/* Open nav menu state (mobile) */
.nav__menu.is-open {
  display: flex;
  position: absolute;