/* ============================================================
   HM Home Solutions — Design System & Stylesheet
   Palette: Terracotta + Off-white + Charcoal
   Fonts: Fraunces (serif headings) + Inter (sans body)
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Fraunces:ital,opsz,wght@0,9..144,300;0,9..144,400;0,9..144,600;0,9..144,700;1,9..144,300;1,9..144,400;1,9..144,600&family=Inter:wght@300;400;500;600&display=swap');

/* ── Tokens ─────────────────────────────────────────────── */
:root {
  --cream:        #FAF7F2;
  --cream-dark:   #F0EAE0;
  --sand:         #E5D3BA;
  --sand-dark:    #C8B59A;
  --terra:        #B5572A;
  --terra-dk:     #8E3F19;
  --terra-lt:     #D4785A;
  --charcoal:     #2D2926;
  --charcoal-lt:  #4A4037;
  --warm-gray:    #6B5F57;
  --warm-gray-lt: #9E8F87;
  --white:        #FFFFFF;

  --font-serif: 'Fraunces', Georgia, 'Times New Roman', serif;
  --font-sans:  'Inter', system-ui, -apple-system, sans-serif;

  --max-w: 1200px;
  --max-w-narrow: 780px;

  --radius-sm:  4px;
  --radius-md:  10px;
  --radius-lg:  18px;
  --radius-xl:  28px;

  --shadow-sm: 0 1px 3px rgba(45,41,38,.08), 0 1px 2px rgba(45,41,38,.05);
  --shadow-md: 0 4px 16px rgba(45,41,38,.10), 0 2px 6px rgba(45,41,38,.07);
  --shadow-lg: 0 12px 40px rgba(45,41,38,.13), 0 4px 12px rgba(45,41,38,.08);

  --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ── Reset ──────────────────────────────────────────────── */
*, *::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-sans);
  background: var(--cream);
  color: var(--charcoal);
  line-height: 1.65;
  overflow-x: hidden;
}

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

/* ── Typography ─────────────────────────────────────────── */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-serif);
  font-weight: 600;
  line-height: 1.15;
  color: var(--charcoal);
}

h1 { font-size: clamp(2.4rem, 5vw, 4.2rem); letter-spacing: -0.02em; }
h2 { font-size: clamp(1.9rem, 3.5vw, 3rem);  letter-spacing: -0.02em; }
h3 { font-size: clamp(1.35rem, 2.5vw, 1.8rem); }
h4 { font-size: 1.2rem; font-family: var(--font-sans); font-weight: 600; }

p {
  font-family: var(--font-sans);
  color: var(--warm-gray);
  font-size: 1.05rem;
  line-height: 1.75;
}

.section-label {
  display: inline-block;
  font-family: var(--font-sans);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--terra);
  margin-bottom: 1rem;
}

.section-label::before {
  content: '';
  display: inline-block;
  width: 20px;
  height: 1.5px;
  background: var(--terra);
  vertical-align: middle;
  margin-right: 8px;
  position: relative;
  top: -1px;
}

/* ── Layout Helpers ─────────────────────────────────────── */
.container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 2rem;
}

.container--narrow {
  max-width: var(--max-w-narrow);
  margin: 0 auto;
  padding: 0 2rem;
}

.section { padding: 7rem 0; }
.section--sm { padding: 4.5rem 0; }
.section--lg { padding: 9rem 0; }

.section--cream  { background: var(--cream); }
.section--dark   { background: var(--cream-dark); }
.section--sand   { background: var(--sand); }
.section--terra  { background: var(--terra); }
.section--charcoal { background: var(--charcoal); }

/* ── Buttons ─────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.85rem 2rem;
  border-radius: 3px;
  font-family: var(--font-sans);
  font-size: 0.875rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  transition: all var(--transition);
  white-space: nowrap;
}

.btn-primary {
  background: var(--terra);
  color: var(--white);
}
.btn-primary:hover {
  background: var(--terra-dk);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn-outline {
  border: 1.5px solid var(--charcoal);
  color: var(--charcoal);
  background: transparent;
}
.btn-outline:hover {
  background: var(--charcoal);
  color: var(--white);
  transform: translateY(-1px);
}

.btn-outline-cream {
  border: 1.5px solid rgba(255,255,255,0.6);
  color: var(--white);
  background: transparent;
}
.btn-outline-cream:hover {
  background: rgba(255,255,255,0.12);
  border-color: var(--white);
}

.btn-ghost {
  color: var(--terra);
  padding-left: 0;
  padding-right: 0;
  font-weight: 500;
  position: relative;
}
.btn-ghost::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 1px;
  background: var(--terra);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition);
}
.btn-ghost:hover::after { transform: scaleX(1); }

.btn svg { width: 16px; height: 16px; transition: transform var(--transition); }
.btn:hover svg { transform: translateX(3px); }

/* ── Navigation ─────────────────────────────────────────── */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 1.4rem 0;
  transition: all 0.35s ease;
}

.nav--scrolled {
  background: rgba(250,247,242,0.97);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  padding: 1rem 0;
  box-shadow: 0 1px 0 rgba(45,41,38,.08), var(--shadow-sm);
}

.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 2rem;
}

/* Logo */
.nav__logo {
  display: flex;
  flex-direction: column;
  gap: 6px;
  line-height: 1;
}
.nav__logo-mark {
  font-family: var(--font-serif);
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--terra);
  letter-spacing: -0.03em;
  line-height: 1;
}
.nav__logo-sub {
  font-family: var(--font-sans);
  font-size: 0.58rem;
  font-weight: 500;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--charcoal-lt);
  line-height: 1;
}
/* Nav links */
.nav__links {
  display: flex;
  align-items: center;
  gap: 2.5rem;
}
.nav__links a {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--charcoal);
  letter-spacing: 0.01em;
  position: relative;
  padding-bottom: 2px;
}
.nav__links a::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 100%;
  height: 1.5px;
  background: var(--terra);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition);
}
.nav__links a:hover::after,
.nav__links a.active::after { transform: scaleX(1); }
.nav__links a.active { color: var(--terra); }

.nav__cta {
  font-size: 0.8rem;
  font-weight: 500;
  padding: 0.6rem 1.4rem;
  letter-spacing: 0.03em;
}

/* Mobile toggle */
.nav__toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 4px;
  background: none;
  border: none;
}
.nav__toggle span {
  display: block;
  width: 24px;
  height: 1.5px;
  background: var(--charcoal);
  transition: all 0.3s ease;
  transform-origin: center;
}
.nav__toggle.open span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.nav__toggle.open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.nav__toggle.open span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

/* Mobile menu */
.nav__mobile {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--cream);
  z-index: 999;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 2.5rem;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}
.nav__mobile.open {
  opacity: 1;
  pointer-events: all;
}
.nav__mobile a {
  font-family: var(--font-serif);
  font-size: 2.2rem;
  font-weight: 400;
  color: var(--charcoal);
  letter-spacing: -0.01em;
  transition: color var(--transition);
}
.nav__mobile a:hover { color: var(--terra); }
.nav__mobile-contact {
  margin-top: 1rem;
  text-align: center;
}
.nav__mobile-contact a {
  font-family: var(--font-sans);
  font-size: 0.875rem;
  color: var(--warm-gray);
  font-weight: 400;
  display: block;
  margin-bottom: 0.4rem;
}

/* Nav transparent (on hero) */
.nav--hero .nav__logo-mark,
.nav--hero .nav__links a,
.nav--hero .nav__cta {
  color: var(--white);
}
.nav--hero .nav__logo-sub { color: rgba(255,255,255,0.65); }.nav--hero .nav__links a::after { background: var(--white); }
.nav--hero .nav__cta {
  border-color: rgba(255,255,255,0.6);
}
.nav--hero .nav__toggle span { background: var(--white); }

/* ── Hero (Home) ─────────────────────────────────────────── */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: stretch;
  overflow: hidden;
}

.hero__bg {
  position: absolute;
  inset: 0;
  background-image: url('https://images.unsplash.com/photo-1600566753376-12c8ab7fb75b?auto=format&fit=crop&w=1800&q=85');
  background-size: cover;
  background-position: center;
  z-index: 0;
}

.hero__bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    105deg,
    rgba(45,41,38,0.80) 0%,
    rgba(45,41,38,0.55) 50%,
    rgba(45,41,38,0.15) 100%
  );
}

.hero__content {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 2rem;
  padding-top: 6rem;
  padding-bottom: 6rem;
  width: 100%;
}

.hero__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 1.8rem;
}
.hero__eyebrow span {
  font-size: 0.68rem;
  font-weight: 500;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--terra-lt);
}
.hero__eyebrow::before {
  content: '';
  display: inline-block;
  width: 36px;
  height: 1.5px;
  background: var(--terra-lt);
}

.hero h1 {
  color: var(--white);
  max-width: 640px;
  margin-bottom: 1.6rem;
  font-weight: 600;
}

.hero h1 em {
  font-style: italic;
  font-weight: 300;
  color: var(--terra-lt);
}

.hero__sub {
  font-size: 1.1rem;
  color: rgba(255,255,255,0.82);
  max-width: 500px;
  margin-bottom: 2.6rem;
  line-height: 1.75;
}

.hero__actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.hero__scroll {
  position: absolute;
  bottom: 2.5rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: rgba(255,255,255,0.5);
  font-size: 0.68rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  animation: scrollBounce 2s ease-in-out infinite;
}
.hero__scroll svg { opacity: 0.5; }

@keyframes scrollBounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50%       { transform: translateX(-50%) translateY(5px); }
}

/* ── Page Hero (inner pages) ─────────────────────────────── */
.page-hero {
  padding: 9rem 0 5rem;
  position: relative;
  background: var(--charcoal);
  overflow: hidden;
}
.page-hero__bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  opacity: 0.18;
}
.page-hero__content {
  position: relative;
  z-index: 1;
}
.page-hero .section-label { color: var(--terra-lt); }
.page-hero .section-label::before { background: var(--terra-lt); }
.page-hero h1 { color: var(--white); margin-bottom: 1rem; }
.page-hero p  { color: rgba(255,255,255,0.72); max-width: 540px; font-size: 1.1rem; }

/* ── Philosophy / Intro ──────────────────────────────────── */
.philosophy {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem;
  align-items: center;
}

.philosophy__quote {
  font-family: var(--font-serif);
  font-size: clamp(1.6rem, 2.8vw, 2.4rem);
  font-weight: 400;
  font-style: italic;
  color: var(--charcoal);
  line-height: 1.35;
  position: relative;
  padding-left: 2rem;
}
.philosophy__quote::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.3em;
  bottom: 0.3em;
  width: 3px;
  background: var(--terra);
  border-radius: 2px;
}

.philosophy__pillars {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}
.philosophy__pillar { display: flex; gap: 1.2rem; align-items: flex-start; }
.philosophy__pillar-icon {
  width: 42px;
  height: 42px;
  min-width: 42px;
  border-radius: var(--radius-sm);
  background: var(--sand);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-top: 2px;
}
.philosophy__pillar-icon svg { width: 20px; height: 20px; stroke: var(--terra); fill: none; stroke-width: 1.5; }
.philosophy__pillar h4 { color: var(--charcoal); margin-bottom: 0.3rem; font-size: 0.95rem; }
.philosophy__pillar p  { font-size: 0.9rem; line-height: 1.65; }

/* ── Services Grid ───────────────────────────────────────── */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5px;
  background: var(--sand-dark);
  border: 1.5px solid var(--sand-dark);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.service-card {
  background: var(--cream);
  padding: 2.4rem 2rem;
  transition: background var(--transition);
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}
.service-card:hover { background: var(--white); }

.service-card__icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-sm);
  background: var(--sand);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--transition);
}
.service-card__icon svg {
  width: 22px;
  height: 22px;
  stroke: var(--terra);
  fill: none;
  stroke-width: 1.5;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.service-card:hover .service-card__icon { background: var(--terra); }
.service-card:hover .service-card__icon svg { stroke: var(--white); }

.service-card__title {
  font-family: var(--font-serif);
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--charcoal);
}

.service-card__body {
  font-size: 0.88rem;
  line-height: 1.7;
  color: var(--warm-gray);
  flex: 1;
}

.service-card__link {
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--terra);
  letter-spacing: 0.02em;
  display: inline-flex;
  align-items: center;
  gap: 5px;
  margin-top: auto;
  transition: gap var(--transition);
}
.service-card__link svg { width: 13px; height: 13px; stroke: currentColor; fill: none; stroke-width: 2; }
.service-card:hover .service-card__link { gap: 9px; }

/* Specialty service card */
.service-card--specialty {
  background: var(--charcoal);
  grid-column: span 1;
}
.service-card--specialty:hover { background: var(--charcoal-lt); }
.service-card--specialty .service-card__icon {
  background: rgba(229,211,186,0.15);
}
.service-card--specialty .service-card__icon svg { stroke: var(--sand); }
.service-card--specialty:hover .service-card__icon {
  background: var(--terra);
}
.service-card--specialty:hover .service-card__icon svg { stroke: var(--white); }
.service-card--specialty .service-card__title { color: var(--white); }
.service-card--specialty .service-card__body  { color: rgba(255,255,255,0.65); }
.service-card--specialty .service-card__link  { color: var(--terra-lt); }
.service-card__badge {
  display: inline-block;
  font-size: 0.62rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--terra-lt);
  border: 1px solid rgba(212,120,90,0.4);
  padding: 2px 8px;
  border-radius: 2px;
  width: fit-content;
  margin-bottom: 0.3rem;
}

/* ── Process ─────────────────────────────────────────────── */
.process-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  position: relative;
}

.process-steps::before {
  content: '';
  position: absolute;
  top: 2.2rem;
  left: 12.5%;
  right: 12.5%;
  height: 1px;
  background: var(--sand-dark);
  z-index: 0;
}

.process-step {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 0 1.5rem;
  position: relative;
  z-index: 1;
}

.process-step__number {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--cream);
  border: 2px solid var(--sand-dark);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-serif);
  font-size: 1rem;
  font-weight: 600;
  color: var(--terra);
  margin-bottom: 1.4rem;
  transition: all var(--transition);
}
.process-step:hover .process-step__number {
  background: var(--terra);
  border-color: var(--terra);
  color: var(--white);
}

.process-step h4 {
  font-family: var(--font-serif);
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--charcoal);
  margin-bottom: 0.6rem;
}
.process-step p { font-size: 0.875rem; line-height: 1.7; }

/* ── CTA Strip ───────────────────────────────────────────── */
.cta-strip {
  background: var(--terra);
  padding: 5.5rem 0;
  text-align: center;
}
.cta-strip h2 { color: var(--white); margin-bottom: 1rem; }
.cta-strip p  { color: rgba(255,255,255,0.82); max-width: 500px; margin: 0 auto 2.4rem; }
.cta-strip__actions { display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap; }

/* ── About Page Sections ─────────────────────────────────── */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem;
  align-items: center;
}
.about-grid--reverse { }
.about-grid--reverse .about-grid__image { order: -1; }

.about-grid__image {
  border-radius: var(--radius-lg);
  overflow: hidden;
  aspect-ratio: 4/3;
  box-shadow: var(--shadow-lg);
}
.about-grid__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}
.about-grid__image:hover img { transform: scale(1.03); }

.about-grid__content .section-label { margin-bottom: 1rem; }
.about-grid__content h2 { margin-bottom: 1.2rem; }
.about-grid__content p  { margin-bottom: 1rem; }

.values-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2rem;
  margin-top: 3rem;
}
.value-item {
  padding: 2rem;
  background: var(--white);
  border-radius: var(--radius-md);
  border: 1px solid var(--sand);
  transition: box-shadow var(--transition);
}
.value-item:hover { box-shadow: var(--shadow-md); }
.value-item__number {
  font-family: var(--font-serif);
  font-size: 2.5rem;
  font-weight: 300;
  color: var(--sand);
  line-height: 1;
  margin-bottom: 0.6rem;
}
.value-item h4 { color: var(--charcoal); margin-bottom: 0.5rem; font-size: 1rem; }
.value-item p  { font-size: 0.875rem; }

/* ── Services Page ───────────────────────────────────────── */
.service-detail {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: start;
  padding-bottom: 4rem;
  margin-bottom: 4rem;
  border-bottom: 1px solid var(--sand);
}
.service-detail:last-child { border-bottom: none; margin-bottom: 0; padding-bottom: 0; }
.service-detail--alt .service-detail__image { order: -1; }

.service-detail__image {
  border-radius: var(--radius-md);
  overflow: hidden;
  aspect-ratio: 4/3;
  box-shadow: var(--shadow-md);
}
.service-detail__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.service-detail__content .section-label { margin-bottom: 0.8rem; }
.service-detail__content h2 { font-size: clamp(1.5rem, 3vw, 2rem); margin-bottom: 1rem; }
.service-detail__content p  { margin-bottom: 1rem; }

.service-detail__list {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  margin: 1.4rem 0 1.8rem;
}
.service-detail__list li {
  display: flex;
  align-items: flex-start;
  gap: 0.7rem;
  font-size: 0.9rem;
  color: var(--warm-gray);
}
.service-detail__list li::before {
  content: '';
  width: 16px;
  height: 16px;
  min-width: 16px;
  background: var(--terra);
  mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpolyline points='3,8 7,12 13,4' stroke='white' stroke-width='2' fill='none' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") no-repeat center;
  -webkit-mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpolyline points='3,8 7,12 13,4' stroke='white' stroke-width='2' fill='none' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") no-repeat center;
  mask-size: cover;
  -webkit-mask-size: cover;
  margin-top: 2px;
}

/* Ozone specialty section */
.ozone-feature {
  background: var(--charcoal);
  border-radius: var(--radius-xl);
  padding: 4rem;
  color: var(--white);
  position: relative;
  overflow: hidden;
}
.ozone-feature::before {
  content: 'O₃';
  position: absolute;
  right: -1rem;
  top: -2rem;
  font-family: var(--font-serif);
  font-size: 14rem;
  font-weight: 700;
  color: rgba(255,255,255,0.03);
  line-height: 1;
  pointer-events: none;
  user-select: none;
}
.ozone-feature .section-label { color: var(--terra-lt); }
.ozone-feature .section-label::before { background: var(--terra-lt); }
.ozone-feature h2 { color: var(--white); margin-bottom: 1rem; }
.ozone-feature p  { color: rgba(255,255,255,0.72); margin-bottom: 1rem; }
.ozone-feature__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: start;
  margin-top: 1rem;
}
.ozone-feature__uses {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-top: 1.5rem;
}
.ozone-use-item {
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.09);
  border-radius: var(--radius-md);
  padding: 1.2rem;
}
.ozone-use-item h4 {
  font-family: var(--font-sans);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--white);
  margin-bottom: 0.3rem;
}
.ozone-use-item p {
  font-size: 0.82rem;
  color: rgba(255,255,255,0.55);
}

/* ── Contact Page ────────────────────────────────────────── */
.contact-layout {
  display: grid;
  grid-template-columns: 1fr 1.6fr;
  gap: 5rem;
  align-items: start;
}

.contact-info h3 {
  font-size: 1.4rem;
  margin-bottom: 0.6rem;
}
.contact-info > p { margin-bottom: 2rem; }

.contact-detail {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
  margin-bottom: 1.8rem;
}
.contact-detail__icon {
  width: 44px;
  height: 44px;
  min-width: 44px;
  border-radius: var(--radius-sm);
  background: var(--sand);
  display: flex;
  align-items: center;
  justify-content: center;
}
.contact-detail__icon svg {
  width: 20px;
  height: 20px;
  stroke: var(--terra);
  fill: none;
  stroke-width: 1.5;
}
.contact-detail__label {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--warm-gray-lt);
  margin-bottom: 3px;
}
.contact-detail__value {
  font-size: 0.95rem;
  color: var(--charcoal);
  font-weight: 500;
}
.contact-detail__value a { transition: color var(--transition); }
.contact-detail__value a:hover { color: var(--terra); }

/* Form */
.contact-form-wrap {
  background: var(--white);
  border-radius: var(--radius-xl);
  padding: 3rem;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--sand);
}
.contact-form-wrap h3 {
  font-size: 1.5rem;
  margin-bottom: 0.4rem;
}
.contact-form-wrap > p {
  margin-bottom: 2rem;
  font-size: 0.9rem;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.2rem;
}
.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  margin-bottom: 1.2rem;
}
.form-group label {
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--charcoal-lt);
}
.form-group input,
.form-group select,
.form-group textarea {
  padding: 0.8rem 1rem;
  border: 1.5px solid var(--sand);
  border-radius: var(--radius-sm);
  background: var(--cream);
  font-family: var(--font-sans);
  font-size: 0.9rem;
  color: var(--charcoal);
  outline: none;
  transition: border-color var(--transition), box-shadow var(--transition);
  width: 100%;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--terra);
  background: var(--white);
  box-shadow: 0 0 0 3px rgba(181,87,42,.12);
}
.form-group textarea { resize: vertical; min-height: 130px; }
.form-group select { appearance: none; -webkit-appearance: none; cursor: pointer; }

.form-submit { width: 100%; justify-content: center; padding: 1rem 2rem; font-size: 0.95rem; }

.form-notice {
  font-size: 0.78rem;
  color: var(--warm-gray-lt);
  text-align: center;
  margin-top: 1rem;
}

/* ── Stats Bar ───────────────────────────────────────────── */
.stats-bar {
  background: var(--charcoal);
  padding: 3.5rem 0;
}
.stats-bar__inner {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  divide: 1px solid rgba(255,255,255,0.08);
}
.stat-item {
  text-align: center;
  padding: 0.5rem 2rem;
  border-right: 1px solid rgba(255,255,255,0.1);
}
.stat-item:last-child { border-right: none; }
.stat-item__number {
  font-family: var(--font-serif);
  font-size: 2.8rem;
  font-weight: 600;
  color: var(--white);
  line-height: 1;
  margin-bottom: 0.4rem;
}
.stat-item__label {
  font-size: 0.75rem;
  font-weight: 400;
  letter-spacing: 0.04em;
  color: rgba(255,255,255,0.4);
  line-height: 1.5;
}

/* ── Footer ──────────────────────────────────────────────── */
.footer {
  background: var(--charcoal);
  color: rgba(255,255,255,0.6);
  padding-top: 5rem;
}

.footer__inner {
  display: grid;
  grid-template-columns: 1.8fr 1fr 1fr 1.2fr;
  gap: 3rem;
  padding-bottom: 4rem;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

.footer__brand .nav__logo-mark { color: var(--terra-lt); }
.footer__brand .nav__logo-sub  { color: rgba(255,255,255,0.35); }.footer__brand p {
  font-size: 0.875rem;
  color: rgba(255,255,255,0.5);
  margin-top: 1.2rem;
  line-height: 1.75;
}

.footer__col h5 {
  font-family: var(--font-sans);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.4);
  margin-bottom: 1.2rem;
}
.footer__col ul { display: flex; flex-direction: column; gap: 0.7rem; }
.footer__col ul a {
  font-size: 0.875rem;
  color: rgba(255,255,255,0.6);
  transition: color var(--transition);
}
.footer__col ul a:hover { color: var(--white); }

.footer__contact-item {
  display: flex;
  align-items: flex-start;
  gap: 0.7rem;
  margin-bottom: 1rem;
  font-size: 0.875rem;
}
.footer__contact-item svg {
  width: 14px;
  height: 14px;
  min-width: 14px;
  stroke: var(--terra-lt);
  fill: none;
  stroke-width: 1.5;
  margin-top: 2px;
}
.footer__contact-item a { color: rgba(255,255,255,0.6); transition: color var(--transition); }
.footer__contact-item a:hover { color: var(--white); }

.footer__bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.8rem 0;
  font-size: 0.78rem;
  color: rgba(255,255,255,0.28);
  flex-wrap: wrap;
  gap: 1rem;
}
.footer__bottom a { color: rgba(255,255,255,0.4); transition: color var(--transition); }
.footer__bottom a:hover { color: rgba(255,255,255,0.7); }
.footer__legal { display: flex; gap: 1.5rem; }

/* ── Divider ─────────────────────────────────────────────── */
.divider {
  height: 1px;
  background: var(--sand);
  margin: 0;
  border: none;
}

/* ── Fade-in Animation ───────────────────────────────────── */
.fade-up {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.65s ease, transform 0.65s ease;
}
.fade-up.visible {
  opacity: 1;
  transform: translateY(0);
}
.fade-up-delay-1 { transition-delay: 0.1s; }
.fade-up-delay-2 { transition-delay: 0.2s; }
.fade-up-delay-3 { transition-delay: 0.3s; }
.fade-up-delay-4 { transition-delay: 0.4s; }

/* ── Utility grids (used inline in pages) ───────────────── */
.grid-2col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}
.principles-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0;
}

/* ── Responsive ──────────────────────────────────────────── */
@media (max-width: 1024px) {
  .services-grid { grid-template-columns: repeat(2, 1fr); }
  .process-steps { grid-template-columns: repeat(2, 1fr); gap: 3rem; }
  .process-steps::before { display: none; }
  .footer__inner { grid-template-columns: 1fr 1fr; }
  .philosophy { gap: 3rem; }
  .about-grid { gap: 3rem; }
  .ozone-feature__grid { grid-template-columns: 1fr; gap: 2rem; }
  .service-detail { grid-template-columns: 1fr; gap: 2.5rem; }
  .service-detail--alt .service-detail__image { order: 0; }
}

@media (max-width: 768px) {
  .grid-2col       { grid-template-columns: 1fr; gap: 2.5rem; }
  .principles-grid { grid-template-columns: 1fr; }

  .section { padding: 5rem 0; }
  .section--lg { padding: 6rem 0; }

  .nav__links, .nav__cta { display: none; }
  .nav__toggle { display: flex; }
  .nav__mobile { display: flex; }

  .nav--hero .nav__toggle span { background: var(--white); }

  .philosophy { grid-template-columns: 1fr; gap: 2.5rem; }
  .about-grid { grid-template-columns: 1fr; }
  .about-grid--reverse .about-grid__image { order: 0; }
  .contact-layout { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .stats-bar__inner { grid-template-columns: 1fr !important; }
  .stat-item { border-right: none; border-bottom: 1px solid rgba(255,255,255,0.1); padding: 1.2rem; }
  .stat-item:last-child { border-bottom: none; }
  .footer__inner { grid-template-columns: 1fr; gap: 2.5rem; }
  .services-grid { grid-template-columns: 1fr; }
  .values-grid { grid-template-columns: 1fr; }
  .ozone-feature { padding: 2.5rem; }
  .ozone-feature__uses { grid-template-columns: 1fr; }
  .contact-form-wrap { padding: 2rem; }
  .hero__actions { flex-direction: column; align-items: flex-start; }
  .hero h1 { font-size: clamp(2rem, 8vw, 3rem); }
}

@media (max-width: 480px) {
  .container { padding: 0 1.2rem; }
  .process-steps { grid-template-columns: 1fr; }
  .cta-strip__actions { flex-direction: column; align-items: center; }
}