/* =============================================================
   RDS Construction Group -- Design System
   Editorial tone | Asymmetric rhythm | Photo-led
   Primary #3D0F0F | Accent #666666 | Neutral #DCDCDC
   DM Serif Display (headings) + DM Sans (body/UI)
   ============================================================= */

/* ------------------------------------------------------------------
   1. CUSTOM PROPERTIES
   ------------------------------------------------------------------ */
:root {
  /* Colors */
  --color-primary:       #3D0F0F;
  --color-primary-dark:  #2a0a0a;
  --color-primary-light: #5c1a1a;
  --color-accent:        #666666;
  --color-accent-light:  #888888;
  --color-neutral:       #DCDCDC;
  --color-neutral-dark:  #b8b8b8;
  --color-white:         #ffffff;
  --color-black:         #000000;
  --color-ink:           #1a1a1a;
  --color-ink-light:     #4a4a4a;
  --color-surface:       #f8f7f5;
  --color-surface-dark:  #edece9;

  /* Typography */
  --font-display:  'DM Serif Display', Georgia, serif;
  --font-body:     'DM Sans', system-ui, sans-serif;

  /* Type scale */
  --text-xs:    0.75rem;   /* 12px */
  --text-sm:    0.875rem;  /* 14px */
  --text-base:  1rem;      /* 16px */
  --text-md:    1.125rem;  /* 18px */
  --text-lg:    1.25rem;   /* 20px */
  --text-xl:    1.5rem;    /* 24px */
  --text-2xl:   2rem;      /* 32px */
  --text-3xl:   2.75rem;   /* 44px */
  --text-4xl:   3.75rem;   /* 60px */
  --text-5xl:   5rem;      /* 80px */
  --text-hero:  6.5rem;    /* 104px */

  /* Spacing */
  --space-1:   0.25rem;
  --space-2:   0.5rem;
  --space-3:   0.75rem;
  --space-4:   1rem;
  --space-5:   1.25rem;
  --space-6:   1.5rem;
  --space-8:   2rem;
  --space-10:  2.5rem;
  --space-12:  3rem;
  --space-16:  4rem;
  --space-20:  5rem;
  --space-24:  6rem;
  --space-32:  8rem;
  --space-40:  10rem;

  /* Layout */
  --container-max:   1280px;
  --container-tight: 960px;
  --container-wide:  1440px;
  --gutter:          clamp(1.25rem, 4vw, 3rem);

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 400ms ease;

  /* Border radius */
  --radius-sm:   2px;
  --radius-base: 4px;
  --radius-lg:   8px;
}

/* ------------------------------------------------------------------
   2. RESET & BASE
   ------------------------------------------------------------------ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: 1.65;
  color: var(--color-ink);
  background: var(--color-white);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img, video { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
address { font-style: normal; }
button { cursor: pointer; background: none; border: none; font: inherit; }

/* ------------------------------------------------------------------
   3. TYPOGRAPHY
   ------------------------------------------------------------------ */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 400;
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--color-ink);
}

h1 { font-size: clamp(var(--text-3xl), 5vw, var(--text-4xl)); }
h2 { font-size: clamp(var(--text-2xl), 3.5vw, var(--text-3xl)); }
h3 { font-size: clamp(var(--text-xl), 2.5vw, var(--text-2xl)); }
h4 { font-size: var(--text-xl); }
h5 { font-size: var(--text-lg); font-family: var(--font-body); font-weight: 500; }
h6 { font-size: var(--text-md); font-family: var(--font-body); font-weight: 600; }

p { max-width: 68ch; }
p + p { margin-top: var(--space-4); }

.lead {
  font-size: var(--text-lg);
  line-height: 1.6;
  color: var(--color-ink-light);
  max-width: 56ch;
}

.eyebrow {
  font-family: var(--font-body);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-accent);
}

.eyebrow-light {
  font-family: var(--font-body);
  font-size: var(--text-xs);
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-neutral-dark);
}

/* ------------------------------------------------------------------
   4. LAYOUT PRIMITIVES
   ------------------------------------------------------------------ */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

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

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

/* Section spacing */
.section {
  padding-block: clamp(var(--space-16), 8vw, var(--space-32));
}

.section-sm {
  padding-block: clamp(var(--space-10), 5vw, var(--space-20));
}

/* Grids */
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--space-8); }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-8); }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-6); }
.grid-auto { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: var(--space-8); }

/* ------------------------------------------------------------------
   5. BUTTONS
   ------------------------------------------------------------------ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: 0.875rem 2rem;
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  border: 1.5px solid transparent;
  transition: all var(--transition-base);
  white-space: nowrap;
}

.btn-primary {
  background: var(--color-primary);
  color: var(--color-white);
  border-color: var(--color-primary);
}
.btn-primary:hover {
  background: var(--color-primary-dark);
  border-color: var(--color-primary-dark);
}

.btn-outline {
  background: transparent;
  color: var(--color-primary);
  border-color: var(--color-primary);
}
.btn-outline:hover {
  background: var(--color-primary);
  color: var(--color-white);
}

.btn-outline-white {
  background: transparent;
  color: var(--color-white);
  border-color: rgba(255,255,255,0.5);
}
.btn-outline-white:hover {
  background: var(--color-white);
  color: var(--color-primary);
  border-color: var(--color-white);
}

.btn-white {
  background: var(--color-white);
  color: var(--color-primary);
  border-color: var(--color-white);
}
.btn-white:hover {
  background: var(--color-neutral);
  border-color: var(--color-neutral);
}

/* ------------------------------------------------------------------
   6. HEADER & NAV
   ------------------------------------------------------------------ */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  transition: background var(--transition-base), box-shadow var(--transition-base);
}

.site-header.scrolled {
  background: var(--color-white);
  box-shadow: 0 1px 0 var(--color-neutral);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  padding-inline: var(--gutter);
  max-width: var(--container-wide);
  margin-inline: auto;
}

/* Logo */
.site-logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  flex-shrink: 0;
}

.site-logo img {
  height: 40px;
  width: auto;
  transition: opacity var(--transition-fast);
}

.logo-dark { display: none; }
.logo-light { display: block; }

.site-header.scrolled .logo-dark { display: block; }
.site-header.scrolled .logo-light { display: none; }

.logo-wordmark {
  display: flex;
  flex-direction: column;
  line-height: 1;
}

.logo-wordmark span:first-child {
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-white);
}

.logo-wordmark span:last-child {
  font-family: var(--font-body);
  font-size: var(--text-xs);
  font-weight: 400;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.65);
}

.site-header.scrolled .logo-wordmark span:first-child { color: var(--color-ink); }
.site-header.scrolled .logo-wordmark span:last-child  { color: var(--color-accent); }

/* Nav */
.site-nav {
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

.nav-item { position: relative; }

.nav-link {
  display: block;
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-sm);
  font-weight: 500;
  letter-spacing: 0.04em;
  color: rgba(255,255,255,0.85);
  transition: color var(--transition-fast);
}

.nav-link:hover { color: var(--color-white); }
.site-header.scrolled .nav-link { color: var(--color-ink-light); }
.site-header.scrolled .nav-link:hover { color: var(--color-primary); }

.nav-link.has-dropdown::after {
  content: '';
  display: inline-block;
  width: 0;
  height: 0;
  border-left: 4px solid transparent;
  border-right: 4px solid transparent;
  border-top: 4px solid currentColor;
  margin-left: var(--space-2);
  vertical-align: middle;
  transition: transform var(--transition-fast);
}

.nav-item:hover .nav-link.has-dropdown::after { transform: rotate(180deg); }

/* Dropdowns */
.nav-dropdown {
  position: absolute;
  top: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%);
  background: var(--color-white);
  border: 1px solid var(--color-neutral);
  min-width: 220px;
  padding: var(--space-3) 0;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity var(--transition-base), transform var(--transition-base);
  transform: translateX(-50%) translateY(-6px);
  box-shadow: 0 8px 32px rgba(0,0,0,0.12);
}

.nav-item:hover .nav-dropdown {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translateX(-50%) translateY(0);
}

.nav-dropdown a {
  display: block;
  padding: var(--space-2) var(--space-6);
  font-size: var(--text-sm);
  color: var(--color-ink);
  transition: background var(--transition-fast), color var(--transition-fast);
}

.nav-dropdown a:hover {
  background: var(--color-surface);
  color: var(--color-primary);
}

.dropdown-group-label {
  padding: var(--space-3) var(--space-6) var(--space-1);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-accent);
}

.dropdown-divider {
  height: 1px;
  background: var(--color-neutral);
  margin: var(--space-2) var(--space-4);
}

.nav-dropdown-wide {
  min-width: 280px;
  left: 0;
  transform: none;
}
.nav-item:hover .nav-dropdown-wide {
  transform: translateY(0);
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

/* Nav CTA button */
.nav-cta {
  display: inline-flex;
  align-items: center;
  padding: 0.6rem 1.4rem;
  font-size: var(--text-sm);
  font-weight: 500;
  letter-spacing: 0.06em;
  background: var(--color-primary);
  color: var(--color-white);
  border: 1.5px solid var(--color-primary);
  margin-left: var(--space-4);
  transition: all var(--transition-base);
}

.nav-cta:hover {
  background: var(--color-primary-dark);
  border-color: var(--color-primary-dark);
}

.site-header.scrolled .nav-cta {
  background: var(--color-primary);
  color: var(--color-white);
}

/* Hamburger */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 36px;
  height: 36px;
  padding: 4px;
  z-index: 10;
}

.nav-toggle span {
  display: block;
  height: 1.5px;
  background: var(--color-white);
  transition: all var(--transition-base);
  transform-origin: center;
}

.site-header.scrolled .nav-toggle span { background: var(--color-ink); }

.nav-toggle.is-open span:nth-child(1) { transform: rotate(45deg) translate(4px, 4px); }
.nav-toggle.is-open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.nav-toggle.is-open span:nth-child(3) { transform: rotate(-45deg) translate(4px, -4px); }

/* Mobile nav */
.mobile-nav {
  display: none;
  position: fixed;
  inset: 0;
  background: var(--color-white);
  z-index: 99;
  overflow-y: auto;
  padding: 90px var(--gutter) var(--gutter);
  flex-direction: column;
  gap: var(--space-2);
}

.mobile-nav.is-open { display: flex; }

.mobile-nav-section {
  border-bottom: 1px solid var(--color-neutral);
  padding-bottom: var(--space-4);
  margin-bottom: var(--space-4);
}

.mobile-nav-heading {
  font-family: var(--font-body);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--space-3);
}

.mobile-nav a {
  display: block;
  padding: var(--space-2) 0;
  font-size: var(--text-lg);
  font-family: var(--font-display);
  color: var(--color-ink);
  border-bottom: 1px solid var(--color-surface-dark);
}

.mobile-nav-sub a {
  font-size: var(--text-base);
  font-family: var(--font-body);
  color: var(--color-ink-light);
  padding: var(--space-2) var(--space-4);
}

.mobile-nav-cta {
  margin-top: var(--space-6);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

/* ------------------------------------------------------------------
   7. HERO -- Full-bleed photo with dark overlay, brand mark right
   ------------------------------------------------------------------ */
.hero-fullbleed {
  position: relative;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 35%;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  /* Dark gradient from bottom-left, lighter at top-right where the kitchen shines */
  background:
    linear-gradient(to top, rgba(0,0,0,0.88) 0%, rgba(0,0,0,0.55) 40%, rgba(0,0,0,0.18) 100%),
    linear-gradient(to right, rgba(61,15,15,0.45) 0%, transparent 60%);
}

/* Brand mark: large ghost, right-center of hero */
.hero-mark {
  position: absolute;
  right: -2%;
  top: 50%;
  transform: translateY(-50%);
  width: 38vw;
  max-width: 520px;
  z-index: 1;
  opacity: 0.10;
  pointer-events: none;
}

.hero-mark img {
  width: 100%;
  height: auto;
}

.hero-content {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  padding: 0 var(--gutter) clamp(var(--space-12), 8vh, var(--space-20));
  max-width: var(--container-wide);
  margin-inline: auto;
  width: 100%;
}

.hero-content-inner {
  max-width: 640px;
}

.hero-eyebrow {
  font-size: var(--text-xs);
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.45);
  margin-bottom: var(--space-5);
}

.hero-headline {
  font-family: var(--font-display);
  font-size: clamp(2.75rem, 5.5vw, 5rem);
  font-weight: 400;
  line-height: 1.0;
  letter-spacing: -0.03em;
  color: var(--color-white);
  margin-bottom: var(--space-6);
}

.hero-sub {
  font-size: var(--text-md);
  line-height: 1.65;
  color: rgba(255,255,255,0.62);
  margin-bottom: var(--space-10);
  max-width: 44ch;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  align-items: center;
}

/* Vertical scroll hint line */
.hero-scroll-hint {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-3);
  padding-bottom: var(--space-2);
  flex-shrink: 0;
}

.hero-scroll-hint span {
  font-size: var(--text-xs);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.3);
  writing-mode: vertical-rl;
}

/* ------------------------------------------------------------------
   8. TRUST STRIP
   ------------------------------------------------------------------ */
.trust-strip {
  background: var(--color-ink);
  padding-block: var(--space-6);
  overflow: hidden;
}

.trust-strip-inner {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: clamp(var(--space-8), 5vw, var(--space-16));
  flex-wrap: wrap;
}

.trust-item {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.trust-item-icon {
  width: 20px;
  height: 20px;
  color: var(--color-neutral-dark);
  flex-shrink: 0;
}

.trust-item-text {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-neutral);
  white-space: nowrap;
}

.trust-divider {
  width: 1px;
  height: 24px;
  background: rgba(255,255,255,0.12);
}

/* ------------------------------------------------------------------
   9. SECTION HEADERS
   ------------------------------------------------------------------ */
.section-header {
  margin-bottom: clamp(var(--space-10), 5vw, var(--space-16));
}

.section-header-split {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: var(--space-8);
  margin-bottom: clamp(var(--space-10), 5vw, var(--space-16));
  flex-wrap: wrap;
}

.section-header-split .section-link {
  font-size: var(--text-sm);
  font-weight: 500;
  letter-spacing: 0.06em;
  color: var(--color-primary);
  text-transform: uppercase;
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  white-space: nowrap;
  flex-shrink: 0;
}

.section-header-split .section-link::after {
  content: '';
  display: inline-block;
  width: 24px;
  height: 1px;
  background: var(--color-primary);
  transition: width var(--transition-base);
}

.section-header-split .section-link:hover::after { width: 40px; }

/* ------------------------------------------------------------------
   10. SERVICES GRID
   ------------------------------------------------------------------ */
.services-section { background: var(--color-surface); }

.service-card {
  background: var(--color-white);
  padding: var(--space-8) var(--space-8) var(--space-6);
  border: 1px solid var(--color-neutral);
  position: relative;
  transition: box-shadow var(--transition-base), transform var(--transition-base);
  overflow: hidden;
}

.service-card:hover {
  box-shadow: 0 4px 24px rgba(0,0,0,0.08);
  transform: translateY(-2px);
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 3px;
  height: 100%;
  background: var(--color-primary);
  transform: scaleY(0);
  transform-origin: bottom;
  transition: transform var(--transition-base);
}

.service-card:hover::before { transform: scaleY(1); }

.service-card-num {
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--color-neutral-dark);
  margin-bottom: var(--space-4);
}

.service-card-title {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 400;
  color: var(--color-ink);
  margin-bottom: var(--space-3);
  line-height: 1.2;
}

.service-card-desc {
  font-size: var(--text-sm);
  line-height: 1.7;
  color: var(--color-ink-light);
  margin-bottom: var(--space-6);
}

.service-card-link {
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-primary);
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
}

.service-card-link::after {
  content: '';
  display: inline-block;
  width: 20px;
  height: 1px;
  background: currentColor;
  transition: width var(--transition-base);
}

.service-card-link:hover::after { width: 32px; }

/* Services asymmetric layout -- 5 columns on first row, 4 on second */
.services-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--color-neutral);
}

.services-grid .service-card {
  border: none;
}

/* ------------------------------------------------------------------
   11. PHOTO MOSAIC -- 6-photo editorial grid
   ------------------------------------------------------------------ */
.photo-mosaic-section {
  background: var(--color-ink);
  padding: var(--space-2);
}

.photo-mosaic-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  grid-template-rows: 320px 260px;
  gap: var(--space-2);
  max-height: 600px;
}

.mosaic-cell {
  position: relative;
  overflow: hidden;
}

.mosaic-cell img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.7s ease;
  display: block;
}

.mosaic-cell:hover img { transform: scale(1.04); }

/* First cell spans 2 rows */
.mosaic-tall {
  grid-row: span 2;
}

/* Last cell on second row spans 2 columns */
.mosaic-wide {
  grid-column: span 2;
}

.mosaic-label {
  position: absolute;
  bottom: var(--space-4);
  left: var(--space-5);
  font-size: var(--text-xs);
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.7);
  background: rgba(0,0,0,0.35);
  padding: var(--space-1) var(--space-3);
  backdrop-filter: blur(4px);
}

/* Photo trio: 3-across horizontal band */
.photo-trio {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: var(--space-2);
  padding: var(--space-2);
}

.photo-trio-item {
  position: relative;
  aspect-ratio: 4/3;
  overflow: hidden;
}

.photo-trio-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}

.photo-trio-item:hover img { transform: scale(1.04); }

.photo-trio-caption {
  position: absolute;
  bottom: var(--space-4);
  left: var(--space-4);
  font-size: var(--text-xs);
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.65);
  background: rgba(0,0,0,0.3);
  padding: var(--space-1) var(--space-3);
  backdrop-filter: blur(4px);
}

/* ------------------------------------------------------------------
   12. CASE STUDY PREVIEW
   ------------------------------------------------------------------ */
.case-study-section {
  background: var(--color-white);
}

.case-study-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  min-height: 560px;
}

.case-study-photo {
  position: relative;
  overflow: hidden;
}

.case-study-photo img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.case-study-content {
  background: var(--color-ink);
  padding: clamp(var(--space-12), 6vw, var(--space-20));
  display: flex;
  flex-direction: column;
  justify-content: center;
  position: relative;
}

.case-study-content::before { display: none; } /* removed old pseudo-element, using real img instead */

.case-study-brandmark {
  position: absolute;
  bottom: var(--space-8);
  right: var(--space-8);
  width: 80px;
  opacity: 0.10;
  pointer-events: none;
}

.case-study-brandmark img { width: 100%; height: auto; }

/* Process header row with brandmark */
.process-header-row {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-8);
  margin-bottom: clamp(var(--space-10), 5vw, var(--space-16));
}

.process-brandmark {
  opacity: 0.12;
  flex-shrink: 0;
}

.process-brandmark img {
  height: 80px;
  width: auto;
}

.case-study-tag {
  font-size: var(--text-xs);
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-neutral-dark);
  margin-bottom: var(--space-4);
}

.case-study-title {
  font-family: var(--font-display);
  font-size: clamp(var(--text-2xl), 3vw, var(--text-3xl));
  font-weight: 400;
  color: var(--color-white);
  line-height: 1.1;
  margin-bottom: var(--space-6);
}

.case-study-text {
  font-size: var(--text-base);
  line-height: 1.75;
  color: rgba(255,255,255,0.65);
  margin-bottom: var(--space-8);
  max-width: 44ch;
}

/* ------------------------------------------------------------------
   13. TESTIMONIALS
   ------------------------------------------------------------------ */
.testimonials-section { background: var(--color-surface); }

.testimonials-placeholder {
  border: 2px dashed var(--color-neutral);
  padding: var(--space-12);
  text-align: center;
  border-radius: var(--radius-base);
}

.testimonial-card {
  background: var(--color-white);
  padding: var(--space-8);
  border: 1px solid var(--color-neutral);
}

.testimonial-stars {
  display: flex;
  gap: var(--space-1);
  margin-bottom: var(--space-4);
  color: var(--color-primary);
}

.testimonial-text {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  line-height: 1.5;
  font-style: italic;
  color: var(--color-ink);
  margin-bottom: var(--space-6);
}

.testimonial-author {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-accent);
  letter-spacing: 0.06em;
}

/* ------------------------------------------------------------------
   14. PROCESS SECTION
   ------------------------------------------------------------------ */
.process-section { background: var(--color-primary); }

.process-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: rgba(255,255,255,0.1);
}

.process-step {
  padding: var(--space-10) var(--space-8);
  background: var(--color-primary);
  position: relative;
}

.process-step-num {
  font-family: var(--font-display);
  font-size: clamp(3rem, 5vw, 5rem);
  font-weight: 400;
  color: rgba(255,255,255,0.1);
  line-height: 1;
  margin-bottom: var(--space-4);
}

.process-step-title {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 400;
  color: var(--color-white);
  margin-bottom: var(--space-3);
}

.process-step-text {
  font-size: var(--text-sm);
  line-height: 1.75;
  color: rgba(255,255,255,0.6);
}

/* ------------------------------------------------------------------
   15. FAQ SECTION
   ------------------------------------------------------------------ */
.faq-section { background: var(--color-white); }

.faq-list { border-top: 1px solid var(--color-neutral); }

details.faq-item {
  border-bottom: 1px solid var(--color-neutral);
}

details.faq-item summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-6);
  padding: var(--space-6) 0;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-display);
  font-size: var(--text-lg);
  color: var(--color-ink);
  line-height: 1.3;
}

details.faq-item summary::-webkit-details-marker { display: none; }

details.faq-item summary .faq-icon {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  position: relative;
  color: var(--color-primary);
}

details.faq-item summary .faq-icon::before,
details.faq-item summary .faq-icon::after {
  content: '';
  position: absolute;
  background: currentColor;
  transition: transform var(--transition-base), opacity var(--transition-base);
}

details.faq-item summary .faq-icon::before {
  width: 100%; height: 1.5px;
  top: 50%; left: 0;
  transform: translateY(-50%);
}

details.faq-item summary .faq-icon::after {
  width: 1.5px; height: 100%;
  left: 50%; top: 0;
  transform: translateX(-50%);
}

details.faq-item[open] summary .faq-icon::after { transform: translateX(-50%) rotate(90deg); opacity: 0; }

.faq-answer {
  padding-bottom: var(--space-6);
  padding-right: var(--space-12);
  font-size: var(--text-base);
  line-height: 1.75;
  color: var(--color-ink-light);
}

/* ------------------------------------------------------------------
   16. CTA SECTION
   ------------------------------------------------------------------ */
.cta-section {
  background: var(--color-ink);
  padding-block: clamp(var(--space-16), 8vw, var(--space-24));
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta-section::before { display: none; }

.cta-eyebrow {
  font-size: var(--text-xs);
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--color-neutral-dark);
  margin-bottom: var(--space-5);
}

.cta-headline {
  font-family: var(--font-display);
  font-size: clamp(var(--text-2xl), 4vw, var(--text-4xl));
  font-weight: 400;
  color: var(--color-white);
  margin-bottom: var(--space-5);
  max-width: 18ch;
  margin-inline: auto;
  line-height: 1.1;
}

.cta-sub {
  font-size: var(--text-md);
  color: rgba(255,255,255,0.55);
  margin-bottom: var(--space-10);
  max-width: 48ch;
  margin-inline: auto;
}

.cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  justify-content: center;
}

/* ------------------------------------------------------------------
   17. FOOTER
   ------------------------------------------------------------------ */
.site-footer {
  background: var(--color-primary-dark);
  color: rgba(255,255,255,0.7);
  padding-top: clamp(var(--space-16), 8vw, var(--space-24));
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: var(--space-12);
  padding-bottom: var(--space-16);
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

.footer-logo {
  display: block;
  margin-bottom: var(--space-5);
}

.footer-logo img { height: 36px; width: auto; }

.footer-tagline {
  font-size: var(--text-sm);
  line-height: 1.7;
  color: rgba(255,255,255,0.5);
  margin-bottom: var(--space-6);
  max-width: 28ch;
}

.footer-nap {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.footer-nap-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  font-size: var(--text-sm);
  line-height: 1.5;
  color: rgba(255,255,255,0.6);
}

.footer-nap-item svg { width: 16px; height: 16px; flex-shrink: 0; margin-top: 2px; }
.footer-nap-item a { color: rgba(255,255,255,0.6); transition: color var(--transition-fast); }
.footer-nap-item a:hover { color: var(--color-white); }

.footer-hours { margin-top: var(--space-4); }
.footer-hours-title {
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.35);
  margin-bottom: var(--space-3);
}

.footer-hours-row {
  display: flex;
  justify-content: space-between;
  gap: var(--space-4);
  font-size: var(--text-xs);
  color: rgba(255,255,255,0.55);
  padding-block: var(--space-1);
}

.footer-col-title {
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.4);
  margin-bottom: var(--space-5);
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.footer-links a {
  font-size: var(--text-sm);
  color: rgba(255,255,255,0.55);
  transition: color var(--transition-fast);
  line-height: 1.5;
}

.footer-links a:hover { color: var(--color-white); }

.footer-links-group-label {
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.3);
  margin-top: var(--space-4);
  margin-bottom: var(--space-2);
}

.footer-map {
  margin-top: var(--space-6);
  border-radius: var(--radius-sm);
  overflow: hidden;
  opacity: 0.8;
}

.footer-map iframe {
  width: 100%;
  height: 180px;
  display: block;
  filter: grayscale(100%) invert(0.1);
}

.footer-bottom {
  padding-block: var(--space-6);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-4);
}

.footer-copyright {
  font-size: var(--text-xs);
  color: rgba(255,255,255,0.3);
}

.footer-legal-links {
  display: flex;
  gap: var(--space-6);
}

.footer-legal-links a {
  font-size: var(--text-xs);
  color: rgba(255,255,255,0.3);
  transition: color var(--transition-fast);
}

.footer-legal-links a:hover { color: rgba(255,255,255,0.6); }

/* BBB badge strip */
.footer-badges {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  margin-top: var(--space-5);
}

.badge-bbb {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-3);
  border: 1px solid rgba(255,255,255,0.12);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.06em;
  color: rgba(255,255,255,0.5);
  text-transform: uppercase;
}

/* ------------------------------------------------------------------
   18. DIFFERENTIATOR / STONE SOURCING FEATURE
   ------------------------------------------------------------------ */
.stone-feature {
  background: var(--color-surface);
  overflow: hidden;
}

.stone-feature-inner {
  display: grid;
  grid-template-columns: 55% 1fr;
  min-height: 480px;
  gap: 0;
}

.stone-feature-content {
  padding: clamp(var(--space-12), 8vw, var(--space-20)) clamp(var(--space-10), 6vw, var(--space-16));
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.stone-feature-photos {
  display: grid;
  grid-template-columns: 1fr 1fr;
  grid-template-rows: 1fr 1fr;
  gap: var(--space-1);
}

.stone-feature-photo {
  overflow: hidden;
}

.stone-feature-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}

.stone-feature-photo:hover img { transform: scale(1.05); }

/* ------------------------------------------------------------------
   19. UTILITIES
   ------------------------------------------------------------------ */
.text-center { text-align: center; }
.text-right  { text-align: right; }
.mt-4  { margin-top: var(--space-4); }
.mt-6  { margin-top: var(--space-6); }
.mt-8  { margin-top: var(--space-8); }
.mt-10 { margin-top: var(--space-10); }
.mb-4  { margin-bottom: var(--space-4); }
.mb-6  { margin-bottom: var(--space-6); }
.mb-8  { margin-bottom: var(--space-8); }
.sr-only {
  position: absolute; width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden;
  clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}

/* ------------------------------------------------------------------
   20. RESPONSIVE
   ------------------------------------------------------------------ */
@media (max-width: 1100px) {
  .services-grid { grid-template-columns: repeat(3, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: var(--space-10); }
  .photo-mosaic-grid { grid-template-rows: 260px 220px; }
}

@media (max-width: 900px) {
  .hero-mark { display: none; }
  .hero-content { flex-direction: column; align-items: flex-start; gap: 0; }
  .hero-scroll-hint { display: none; }
  .process-grid { grid-template-columns: 1fr 1fr; }
  .case-study-split { grid-template-columns: 1fr; }
  .case-study-photo { height: 50vw; min-height: 280px; }
  .stone-feature-inner { grid-template-columns: 1fr; }
  .stone-feature-photos { grid-template-columns: repeat(4, 1fr); grid-template-rows: 1fr; height: 200px; }
  .photo-mosaic-grid { grid-template-columns: 1fr 1fr; grid-template-rows: 240px 200px 200px; max-height: none; }
  .mosaic-tall { grid-row: span 1; }
  .mosaic-wide { grid-column: span 2; }
  .photo-trio { grid-template-columns: 1fr 1fr; }
  .photo-trio-item:last-child { display: none; }
  .process-brandmark { display: none; }
}

@media (max-width: 768px) {
  .site-nav { display: none; }
  .nav-toggle { display: flex; }
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .services-grid { grid-template-columns: 1fr 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: var(--space-8); }
  .trust-strip-inner { gap: var(--space-6); }
  .trust-divider { display: none; }
  .process-grid { grid-template-columns: 1fr; }
  .photo-mosaic-grid { grid-template-columns: 1fr 1fr; }
  .photo-trio { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 480px) {
  .services-grid { grid-template-columns: 1fr; }
  .hero-actions { flex-direction: column; align-items: flex-start; }
  .cta-actions { flex-direction: column; align-items: center; }
  .photo-mosaic-grid { grid-template-columns: 1fr; grid-template-rows: auto; max-height: none; }
  .mosaic-wide { grid-column: span 1; }
  .photo-trio { grid-template-columns: 1fr; }
  .photo-trio-item:nth-child(n+2) { display: none; }
  .footer-bottom { flex-direction: column; }
  .stone-feature-photos { grid-template-columns: 1fr 1fr; grid-template-rows: 1fr 1fr; height: 280px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
}