/* ==========================================================================
   Trenchless Sewer Wayne — Shared Stylesheet
   ========================================================================== */

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

:root {
  --color-void: #0d0f0e;
  --color-deep: #1a1e1d;
  --color-mid: #2a302f;
  --color-surface: #f2f3f0;
  --color-surface-2: #e6e8e4;
  --color-accent: #c44536;
  --color-accent-soft: #d46b5c;
  --color-text-primary: #f2f3f0;
  --color-text-secondary: #a8b0a8;
  --color-text-dark: #1a1e1d;
  --color-text-muted: #6b7370;
  --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
  --font-serif: 'Instrument Serif', Georgia, serif;
  --space-xs: 0.5rem;
  --space-sm: 0.75rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;
  --space-4xl: 6rem;
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 16px;
  --shadow-soft: 0 2px 12px rgba(0,0,0,0.06);
  --shadow-elevated: 0 8px 32px rgba(0,0,0,0.12);
  --max-width: 1280px;
  --max-width-narrow: 880px;
  --touch-min: 44px;
}

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

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

body {
  font-family: var(--font-sans);
  background-color: var(--color-surface);
  color: var(--color-text-dark);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

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

/* ===== UTILITY ===== */
.container { width: 100%; max-width: var(--max-width); margin: 0 auto; padding: 0 var(--space-lg); }
.container--narrow { max-width: var(--max-width-narrow); }

.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;
}

.skip-link {
  position: absolute; top: -100%; left: var(--space-md);
  background: var(--color-accent); color: white;
  padding: var(--space-sm) var(--space-md); border-radius: var(--radius-sm);
  z-index: 9999; font-weight: 600; transition: top 0.2s;
}
.skip-link:focus { top: var(--space-md); }

/* ===== TYPOGRAPHY ===== */
.display-xl {
  font-family: var(--font-serif);
  font-size: clamp(2.8rem, 12vw, 6rem);
  line-height: 0.95; letter-spacing: -0.03em; font-weight: 400;
}

.display-lg {
  font-family: var(--font-serif);
  font-size: clamp(2rem, 8vw, 3.5rem);
  line-height: 1.05; letter-spacing: -0.02em; font-weight: 400;
}

.display-md {
  font-family: var(--font-serif);
  font-size: clamp(1.6rem, 6vw, 2.5rem);
  line-height: 1.1; letter-spacing: -0.01em; font-weight: 400;
}

.heading-sm {
  font-family: var(--font-sans); font-size: 0.75rem; font-weight: 600;
  letter-spacing: 0.08em; text-transform: uppercase; color: var(--color-text-muted);
}

.body-lg { font-size: clamp(1rem, 2.5vw, 1.125rem); line-height: 1.7; color: var(--color-text-muted); }
.body-md { font-size: 0.95rem; line-height: 1.7; color: var(--color-text-muted); }

/* ===== HEADER ===== */
.site-header {
  position: sticky; top: 0; z-index: 1000;
  background: rgba(242, 243, 240, 0.92);
  backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(26, 30, 29, 0.06);
}

.header-inner {
  display: flex; align-items: center; justify-content: space-between;
  height: 64px; gap: var(--space-md);
}

.logo {
  display: flex; align-items: center; gap: var(--space-sm);
  font-weight: 600; font-size: 1.1rem; letter-spacing: -0.01em;
  color: var(--color-text-dark); white-space: nowrap;
}

.logo-mark {
  width: 32px; height: 32px; background: var(--color-accent);
  border-radius: 50%; display: flex; align-items: center;
  justify-content: center; flex-shrink: 0;
}
.logo-mark svg { width: 18px; height: 18px; fill: none; stroke: white; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }

.logo-text { display: flex; flex-direction: column; line-height: 1.1; }
.logo-text span:first-child { font-size: 0.9rem; font-weight: 700; }
.logo-text span:last-child { font-size: 0.65rem; font-weight: 400; color: var(--color-text-muted); letter-spacing: 0.04em; text-transform: uppercase; }

.nav-desktop { display: none; align-items: center; gap: var(--space-xl); }
.nav-desktop a {
  font-size: 0.85rem; font-weight: 500; color: var(--color-text-muted);
  transition: color 0.2s; padding: var(--space-xs) 0; position: relative;
}
.nav-desktop a:hover, .nav-desktop a:focus-visible { color: var(--color-text-dark); }
.nav-desktop a::after {
  content: ''; position: absolute; bottom: 0; left: 0; width: 0;
  height: 2px; background: var(--color-accent); transition: width 0.25s ease;
}
.nav-desktop a:hover::after, .nav-desktop a:focus-visible::after { width: 100%; }
.nav-desktop a[aria-current="page"] { color: var(--color-text-dark); font-weight: 600; }
.nav-desktop a[aria-current="page"]::after { width: 100%; }

.header-cta { display: none; }
.header-cta a {
  display: inline-flex; align-items: center; gap: var(--space-xs);
  background: var(--color-deep); color: white; padding: 0.6rem 1.2rem;
  border-radius: var(--radius-sm); font-size: 0.85rem; font-weight: 600;
  transition: background 0.2s; min-height: var(--touch-min);
}
.header-cta a:hover, .header-cta a:focus-visible { background: var(--color-accent); }

.menu-toggle {
  display: flex; align-items: center; justify-content: center;
  width: var(--touch-min); height: var(--touch-min);
  border-radius: var(--radius-sm); color: var(--color-text-dark);
  transition: background 0.2s;
}
.menu-toggle:hover { background: rgba(26, 30, 29, 0.06); }
.menu-toggle svg { width: 24px; height: 24px; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; }
.menu-toggle .icon-close { display: none; }
.menu-toggle[aria-expanded="true"] .icon-menu { display: none; }
.menu-toggle[aria-expanded="true"] .icon-close { display: block; }

/* ===== MOBILE MENU ===== */
.mobile-menu {
  position: fixed; inset: 0; top: 64px; background: var(--color-surface);
  z-index: 999; padding: var(--space-xl) var(--space-lg);
  display: flex; flex-direction: column; gap: var(--space-xs);
  transform: translateX(100%);
  transition: transform 0.35s cubic-bezier(0.16, 1, 0.3, 1);
  overflow-y: auto; -webkit-overflow-scrolling: touch;
}
.mobile-menu.is-open { transform: translateX(0); }
.mobile-menu a {
  display: flex; align-items: center; padding: var(--space-md) 0;
  font-size: 1.15rem; font-weight: 500; color: var(--color-text-dark);
  border-bottom: 1px solid rgba(26, 30, 29, 0.06);
  min-height: var(--touch-min); transition: color 0.2s, padding-left 0.2s;
}
.mobile-menu a:hover, .mobile-menu a:focus-visible { color: var(--color-accent); padding-left: var(--space-sm); }
.mobile-menu a[aria-current="page"] { color: var(--color-accent); font-weight: 600; }
.mobile-menu .menu-cta {
  margin-top: var(--space-xl); background: var(--color-deep); color: white;
  justify-content: center; border-radius: var(--radius-sm); border: none; font-weight: 600;
}
.mobile-menu .menu-cta:hover { background: var(--color-accent); color: white; padding-left: 0; }

/* ===== BUTTONS ===== */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  gap: var(--space-xs); padding: 0.8rem 1.6rem; border-radius: var(--radius-sm);
  font-size: 0.9rem; font-weight: 600; line-height: 1.2;
  transition: all 0.2s ease; min-height: var(--touch-min);
  text-align: center; white-space: nowrap;
}
.btn-primary { background: var(--color-accent); color: white; }
.btn-primary:hover, .btn-primary:focus-visible {
  background: #a8382a; transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(196, 69, 54, 0.3);
}
.btn-dark { background: var(--color-deep); color: white; }
.btn-dark:hover, .btn-dark:focus-visible { background: var(--color-accent); transform: translateY(-1px); }
.btn-outline {
  background: transparent; color: var(--color-text-dark);
  border: 1.5px solid rgba(26, 30, 29, 0.15);
}
.btn-outline:hover, .btn-outline:focus-visible { border-color: var(--color-accent); color: var(--color-accent); }
.btn-outline-light {
  background: transparent; color: var(--color-text-primary);
  border: 1.5px solid rgba(242, 243, 240, 0.25);
}
.btn-outline-light:hover, .btn-outline-light:focus-visible { border-color: var(--color-accent); color: var(--color-accent); }
.btn-lg { padding: 1rem 2rem; font-size: 1rem; }
.btn svg {
  width: 18px; height: 18px; fill: none; stroke: currentColor;
  stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; flex-shrink: 0;
}

/* ===== HERO ===== */
.hero {
  position: relative; background: var(--color-void); color: var(--color-text-primary);
  overflow: hidden; min-height: 85vh; display: flex; align-items: flex-end;
}
.hero-bg { position: absolute; inset: 0; z-index: 0; }
.hero-bg img {
  width: 100%; height: 100%; object-fit: cover;
  object-position: center 30%; opacity: 0.45;
  filter: grayscale(0.3) contrast(1.1);
}
.hero-bg::after {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(to top,
    var(--color-void) 0%, rgba(13, 15, 14, 0.7) 40%,
    rgba(13, 15, 14, 0.3) 70%, rgba(13, 15, 14, 0.5) 100%);
}
.hero-content { position: relative; z-index: 1; width: 100%; padding: var(--space-3xl) 0 var(--space-2xl); }
.hero-label {
  display: inline-flex; align-items: center; gap: var(--space-sm);
  font-size: 0.7rem; font-weight: 600; letter-spacing: 0.12em;
  text-transform: uppercase; color: var(--color-accent-soft); margin-bottom: var(--space-lg);
}
.hero-label::before { content: ''; display: block; width: 24px; height: 1.5px; background: var(--color-accent); }
.hero h1 { margin-bottom: var(--space-lg); max-width: 14ch; }
.hero h1 em { font-style: italic; color: var(--color-accent-soft); }
.hero-sub {
  font-size: clamp(1rem, 3vw, 1.15rem); line-height: 1.7;
  color: rgba(242, 243, 240, 0.7); max-width: 50ch; margin-bottom: var(--space-xl);
}
.hero-actions { display: flex; flex-wrap: wrap; gap: var(--space-sm); margin-bottom: var(--space-2xl); }
.hero-meta {
  display: flex; flex-wrap: wrap; gap: var(--space-lg);
  padding-top: var(--space-lg); border-top: 1px solid rgba(242, 243, 240, 0.1);
}
.hero-meta-item {
  display: flex; align-items: center; gap: var(--space-sm);
  font-size: 0.8rem; color: rgba(242, 243, 240, 0.55);
}
.hero-meta-item svg {
  width: 16px; height: 16px; fill: none; stroke: var(--color-accent-soft);
  stroke-width: 1.5; stroke-linecap: round; stroke-linejoin: round; flex-shrink: 0;
}

/* ===== PAGE HERO ===== */
.page-hero { padding: var(--space-3xl) 0 var(--space-xl); background: var(--color-surface); }
.page-hero h1 { margin: var(--space-md) 0 var(--space-lg); max-width: 20ch; }
.page-hero .body-lg { max-width: 55ch; }

.breadcrumb {
  display: flex; align-items: center; gap: var(--space-sm);
  font-size: 0.75rem; font-weight: 500; color: var(--color-text-muted);
  margin-bottom: var(--space-xl);
}
.breadcrumb a { transition: color 0.2s; }
.breadcrumb a:hover { color: var(--color-accent); }
.breadcrumb span[aria-current] { color: var(--color-text-dark); font-weight: 600; }

/* ===== SECTIONS ===== */
.section { padding: var(--space-3xl) 0; }
.section--dark { background: var(--color-deep); color: var(--color-text-primary); }
.section--surface { background: var(--color-surface-2); }

.section-header { margin-bottom: var(--space-2xl); }
.section-header .heading-sm {
  margin-bottom: var(--space-md); display: flex; align-items: center; gap: var(--space-sm);
}
.section-header .heading-sm::after {
  content: ''; flex: 1; height: 1px; background: rgba(26, 30, 29, 0.1); max-width: 80px;
}
.section--dark .section-header .heading-sm { color: var(--color-text-secondary); }
.section--dark .section-header .heading-sm::after { background: rgba(242, 243, 240, 0.15); }
.section-header h2 { margin-bottom: var(--space-md); max-width: 20ch; }
.section-header p { max-width: 55ch; }

/* ===== PROBLEM CARDS ===== */
.problem-grid { display: grid; gap: var(--space-xl); }
.problem-card {
  background: var(--color-surface); border-radius: var(--radius-md);
  padding: var(--space-xl); border: 1px solid rgba(26, 30, 29, 0.06);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}
.problem-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-elevated); }
.problem-card .card-icon {
  width: 44px; height: 44px; border-radius: var(--radius-sm);
  background: rgba(196, 69, 54, 0.08); display: flex; align-items: center;
  justify-content: center; margin-bottom: var(--space-md);
}
.problem-card .card-icon svg {
  width: 22px; height: 22px; fill: none; stroke: var(--color-accent);
  stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round;
}
.problem-card h3 { font-size: 1.1rem; font-weight: 600; margin-bottom: var(--space-sm); letter-spacing: -0.01em; }
.problem-card p { font-size: 0.9rem; line-height: 1.7; color: var(--color-text-muted); }

/* ===== METHOD COMPARE ===== */
.method-compare { display: grid; gap: var(--space-xl); margin-top: var(--space-xl); }
.method-item { display: grid; gap: var(--space-md); }
.method-visual {
  border-radius: var(--radius-md); overflow: hidden;
  aspect-ratio: 16/10; background: var(--color-mid); position: relative;
}
.method-visual img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s ease; }
.method-item:hover .method-visual img { transform: scale(1.03); }
.method-visual .method-badge {
  position: absolute; top: var(--space-md); left: var(--space-md);
  background: var(--color-accent); color: white; font-size: 0.65rem;
  font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase;
  padding: 0.35rem 0.75rem; border-radius: var(--radius-sm);
}
.method-content h3 { font-size: 1.2rem; font-weight: 600; margin-bottom: var(--space-sm); letter-spacing: -0.01em; }
.method-content p { font-size: 0.9rem; line-height: 1.7; color: var(--color-text-muted); margin-bottom: var(--space-md); }
.method-list { list-style: none; display: flex; flex-direction: column; gap: var(--space-sm); }
.method-list li {
  display: flex; align-items: flex-start; gap: var(--space-sm);
  font-size: 0.85rem; line-height: 1.5; color: var(--color-text-muted);
}
.method-list li svg {
  width: 16px; height: 16px; fill: none; stroke: var(--color-accent);
  stroke-width: 2.5; stroke-linecap: round; stroke-linejoin: round;
  flex-shrink: 0; margin-top: 2px;
}

/* ===== CTA BANNER ===== */
.cta-banner {
  background: var(--color-deep); color: var(--color-text-primary);
  border-radius: var(--radius-lg); padding: var(--space-2xl) var(--space-xl);
  display: flex; flex-direction: column; gap: var(--space-lg);
  position: relative; overflow: hidden;
}
.cta-banner::before {
  content: ''; position: absolute; top: -40%; right: -10%;
  width: 300px; height: 300px; border-radius: 50%;
  background: radial-gradient(circle, rgba(196, 69, 54, 0.15) 0%, transparent 70%);
  pointer-events: none;
}
.cta-banner h3 {
  font-family: var(--font-serif); font-size: clamp(1.5rem, 5vw, 2.2rem);
  line-height: 1.15; letter-spacing: -0.01em; position: relative;
}
.cta-banner p {
  font-size: 0.95rem; line-height: 1.7;
  color: rgba(242, 243, 240, 0.6); max-width: 50ch; position: relative;
}
.cta-banner .cta-actions {
  display: flex; flex-wrap: wrap; gap: var(--space-sm); position: relative;
}

/* ===== SERVICE DETAIL ===== */
.service-detail { display: grid; gap: var(--space-2xl); align-items: center; }
.service-detail--reverse { direction: rtl; }
.service-detail--reverse > * { direction: ltr; }
.service-detail-content h2 { margin: var(--space-md) 0 var(--space-lg); }
.service-detail-content .body-lg { margin-bottom: var(--space-lg); }
.service-detail-visual { border-radius: var(--radius-md); overflow: hidden; aspect-ratio: 4/3; }
.service-detail-visual img { width: 100%; height: 100%; object-fit: cover; }

/* ===== COMPARE TABLE ===== */
.compare-table {
  display: flex; flex-direction: column; gap: 0;
  border-radius: var(--radius-md); overflow: hidden;
  border: 1px solid rgba(26, 30, 29, 0.08);
}
.compare-row {
  display: grid; grid-template-columns: 1fr 1fr 1fr;
  border-bottom: 1px solid rgba(26, 30, 29, 0.06);
  background: var(--color-surface);
}
.compare-row:last-child { border-bottom: none; }
.compare-row--header { background: var(--color-deep); color: var(--color-text-primary); font-weight: 600; }
.compare-row > div { padding: var(--space-md); font-size: 0.85rem; line-height: 1.5; }
.compare-row > div:first-child { font-weight: 500; color: var(--color-text-dark); }
.compare-row--header > div { font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.06em; color: var(--color-text-primary); }
.compare-good { color: #2d7a4e; font-weight: 600; }
.compare-bad { color: var(--color-accent); font-weight: 600; }

/* ===== HONEST LIST ===== */
.honest-list { list-style: none; display: flex; flex-direction: column; gap: var(--space-xl); }
.honest-list li { display: flex; gap: var(--space-md); align-items: flex-start; }
.honest-list li > svg {
  width: 24px; height: 24px; fill: none; stroke: var(--color-accent-soft);
  stroke-width: 1.5; stroke-linecap: round; stroke-linejoin: round; flex-shrink: 0; margin-top: 2px;
}
.honest-list li strong {
  display: block; font-size: 1rem; font-weight: 600; margin-bottom: var(--space-xs);
  color: var(--color-text-primary);
}
.honest-list li p { font-size: 0.9rem; line-height: 1.7; color: rgba(242, 243, 240, 0.6); }

/* ===== PROCESS ===== */
.process-steps { display: flex; flex-direction: column; gap: 0; }
.process-step {
  display: grid; grid-template-columns: 48px 1fr; gap: var(--space-lg);
  padding: var(--space-xl) 0; border-bottom: 1px solid rgba(26, 30, 29, 0.06); position: relative;
}
.process-step:last-child { border-bottom: none; }
.step-number {
  font-family: var(--font-serif); font-size: 1.5rem; color: var(--color-accent);
  line-height: 1; padding-top: 0.2rem; position: relative;
}
.step-number::after {
  content: ''; position: absolute; top: 2.2rem; left: 50%;
  transform: translateX(-50%); width: 1px; height: calc(100% + 1rem);
  background: rgba(26, 30, 29, 0.08);
}
.process-step:last-child .step-number::after { display: none; }
.step-content h3 { font-size: 1.05rem; font-weight: 600; margin-bottom: var(--space-sm); letter-spacing: -0.01em; }
.step-content p { font-size: 0.9rem; line-height: 1.7; color: var(--color-text-muted); }

.process-note {
  margin-top: var(--space-2xl); padding: var(--space-lg);
  background: var(--color-surface-2); border-radius: var(--radius-md);
  border-left: 3px solid var(--color-accent);
}
.process-note p { color: var(--color-text-dark); }

/* ===== AREAS ===== */
.areas-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--space-sm); margin-top: var(--space-xl); }
.area-tag {
  display: flex; align-items: center; gap: var(--space-sm); padding: var(--space-md);
  background: var(--color-surface); border-radius: var(--radius-sm);
  border: 1px solid rgba(26, 30, 29, 0.06); font-size: 0.85rem; font-weight: 500;
  transition: border-color 0.2s, background 0.2s;
}
.area-tag:hover { border-color: var(--color-accent); background: rgba(196, 69, 54, 0.03); }
.area-tag svg {
  width: 14px; height: 14px; fill: none; stroke: var(--color-accent);
  stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; flex-shrink: 0;
}

/* ===== FAQ ===== */
.faq-list { display: flex; flex-direction: column; gap: 0; }
.faq-item { border-bottom: 1px solid rgba(26, 30, 29, 0.08); }
.faq-item:first-child { border-top: 1px solid rgba(26, 30, 29, 0.08); }
.faq-question {
  width: 100%; display: flex; align-items: center; justify-content: space-between;
  gap: var(--space-md); padding: var(--space-lg) 0; font-size: 0.95rem;
  font-weight: 600; text-align: left; color: var(--color-text-dark);
  min-height: var(--touch-min); transition: color 0.2s;
}
.faq-question:hover { color: var(--color-accent); }
.faq-question svg {
  width: 20px; height: 20px; fill: none; stroke: currentColor; stroke-width: 2;
  stroke-linecap: round; flex-shrink: 0; transition: transform 0.3s ease;
}
.faq-item[open] .faq-question svg { transform: rotate(45deg); }
.faq-answer {
  padding: 0 0 var(--space-lg); font-size: 0.9rem; line-height: 1.7;
  color: var(--color-text-muted); max-width: 65ch;
}
.faq-item details { overflow: hidden; }
.faq-item summary { list-style: none; cursor: pointer; }
.faq-item summary::-webkit-details-marker { display: none; }

/* ===== CONTACT INFO ===== */
.contact-info-grid { display: grid; gap: var(--space-lg); }
.contact-info-card {
  background: var(--color-surface); border-radius: var(--radius-md);
  padding: var(--space-xl); border: 1px solid rgba(26, 30, 29, 0.06);
}
.contact-icon {
  width: 44px; height: 44px; border-radius: var(--radius-sm);
  background: rgba(196, 69, 54, 0.08); display: flex; align-items: center;
  justify-content: center; margin-bottom: var(--space-md);
}
.contact-icon svg {
  width: 20px; height: 20px; fill: none; stroke: var(--color-accent);
  stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round;
}
.contact-info-card h3 {
  font-size: 0.8rem; font-weight: 600; text-transform: uppercase;
  letter-spacing: 0.06em; color: var(--color-text-muted); margin-bottom: var(--space-xs);
}
.contact-info-card p, .contact-info-card a {
  font-size: 0.95rem; line-height: 1.6; color: var(--color-text-dark); font-weight: 500;
}
.contact-info-card a:hover { color: var(--color-accent); }

.map-embed { border-radius: var(--radius-md); overflow: hidden; box-shadow: var(--shadow-soft); }
.map-embed iframe { display: block; width: 100%; height: 400px; border: 0; }

/* ===== FOOTER ===== */
.site-footer {
  background: var(--color-void); color: rgba(242, 243, 240, 0.5);
  padding: var(--space-3xl) 0 var(--space-xl); font-size: 0.8rem;
}
.footer-grid { display: grid; gap: var(--space-2xl); margin-bottom: var(--space-2xl); }
.footer-brand .logo { color: var(--color-text-primary); margin-bottom: var(--space-md); }
.footer-brand p { font-size: 0.85rem; line-height: 1.7; max-width: 35ch; }
.footer-col h4 {
  font-size: 0.7rem; font-weight: 700; letter-spacing: 0.1em;
  text-transform: uppercase; color: var(--color-text-primary); margin-bottom: var(--space-md);
}
.footer-col ul { list-style: none; display: flex; flex-direction: column; gap: var(--space-sm); }
.footer-col a { transition: color 0.2s; display: inline-flex; align-items: center; min-height: 32px; }
.footer-col a:hover { color: var(--color-accent); }
.footer-bottom {
  padding-top: var(--space-xl); border-top: 1px solid rgba(242, 243, 240, 0.08);
  display: flex; flex-direction: column; gap: var(--space-sm);
  font-size: 0.75rem; color: rgba(242, 243, 240, 0.35);
}

/* ===== STICKY MOBILE CTA ===== */
.sticky-cta {
  position: fixed; bottom: 0; left: 0; right: 0; z-index: 998;
  background: var(--color-deep); padding: var(--space-sm) var(--space-md);
  padding-bottom: calc(var(--space-sm) + env(safe-area-inset-bottom, 0px));
  display: flex; align-items: center; justify-content: space-between;
  gap: var(--space-md); transform: translateY(100%);
  transition: transform 0.3s ease;
  box-shadow: 0 -4px 20px rgba(0,0,0,0.2);
}
.sticky-cta.is-visible { transform: translateY(0); }
.sticky-cta-text {
  color: var(--color-text-primary); font-size: 0.75rem; line-height: 1.3; font-weight: 500;
}
.sticky-cta-text strong { display: block; font-size: 0.8rem; }
.sticky-cta .btn { padding: 0.6rem 1.2rem; font-size: 0.8rem; flex-shrink: 0; }

/* ===== FOCUS ===== */
:focus-visible { outline: 2px solid var(--color-accent); outline-offset: 3px; border-radius: 2px; }

/* ===== RESPONSIVE ===== */
@media (min-width: 640px) {
  .problem-grid { grid-template-columns: repeat(2, 1fr); }
  .method-compare { grid-template-columns: repeat(2, 1fr); }
  .areas-grid { grid-template-columns: repeat(3, 1fr); }
  .contact-info-grid { grid-template-columns: repeat(3, 1fr); }
  .cta-banner {
    flex-direction: row; align-items: center; justify-content: space-between;
    padding: var(--space-3xl) var(--space-2xl);
  }
  .cta-banner > div:first-child { flex: 1; }
  .cta-banner .cta-actions { flex-shrink: 0; }
  .footer-grid { grid-template-columns: 2fr 1fr 1fr; }
}

@media (min-width: 768px) {
  .hero { min-height: 90vh; }
  .hero-content { padding: var(--space-4xl) 0 var(--space-3xl); }
  .section { padding: var(--space-4xl) 0; }
  .process-step { grid-template-columns: 80px 1fr; gap: var(--space-xl); }
  .step-number { font-size: 2rem; }
  .problem-grid { grid-template-columns: repeat(3, 1fr); }
  .areas-grid { grid-template-columns: repeat(3, 1fr); }
}

@media (min-width: 1024px) {
  .nav-desktop { display: flex; }
  .header-cta { display: block; }
  .menu-toggle { display: none; }
  .mobile-menu { display: none; }
  .hero { min-height: 100vh; }
  .hero-content { padding: var(--space-4xl) 0; }
  .hero h1 { font-size: clamp(3.5rem, 7vw, 6rem); }
  .hero-sub { font-size: 1.15rem; }
  .method-compare { grid-template-columns: 1fr 1fr; gap: var(--space-2xl); }
  .method-item { grid-template-columns: 1fr; }
  .problem-grid { gap: var(--space-2xl); }
  .sticky-cta { display: none; }
  .footer-grid { grid-template-columns: 2fr 1fr 1fr 1fr; }
  .footer-bottom { flex-direction: row; justify-content: space-between; }
  .service-detail { grid-template-columns: 1fr 1fr; gap: var(--space-3xl); }
  .compare-row > div { padding: var(--space-lg); }
}

@media (min-width: 1280px) {
  .container { padding: 0 var(--space-2xl); }
  .hero h1 { max-width: 12ch; }
  .section-header h2 { max-width: 18ch; }
}

@media (min-width: 1440px) {
  :root { --max-width: 1360px; }
}

@media (prefers-reduced-motion: reduce) {
  .sticky-cta { transition: none; }
  .mobile-menu { transition: none; }
}