/* =========================================================
   drtanwp.com — Google Stitch Clinical Editorial design system
   ========================================================= */

:root {
  /* Color tokens */
  --primary: #00275a;
  --primary-container: #1e3e72;
  --on-primary: #ffffff;
  --on-primary-container: #8eaae5;
  --secondary: #005db8;
  --secondary-container: #4d95ff;
  --on-secondary: #ffffff;
  --on-secondary-container: #002e60;
  --tertiary: #1c2a3d;
  --surface: #f8f9fa;
  --surface-container-low: #f3f4f5;
  --surface-container-lowest: #ffffff;
  --surface-container: #edeeef;
  --surface-container-high: #e7e8e9;
  --surface-container-highest: #e1e3e4;
  --on-surface: #191c1d;
  --on-surface-variant: #43474f;
  --outline: #747780;
  --outline-variant: #c4c6d1;
  --error: #ba1a1a;

  --font-serif: "Noto Serif", Georgia, "Times New Roman", serif;
  --font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;

  --shadow-card: 0 2px 12px rgba(25, 28, 29, 0.06);
  --shadow-card-hover: 0 8px 28px rgba(25, 28, 29, 0.1);

  --radius-sm: 8px;
  --radius: 12px;
  --radius-lg: 16px;
}

/* --- Reset / base --- */
* { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  color: var(--on-surface);
  background: var(--surface);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
a { color: var(--secondary); text-decoration: none; transition: color .15s ease; }
a:hover { color: var(--primary); }
img { max-width: 100%; height: auto; display: block; }
h1, h2, h3, h4 {
  font-family: var(--font-serif);
  font-weight: 600;
  color: var(--primary);
  line-height: 1.2;
  margin: 0 0 .5em;
  letter-spacing: -0.01em;
}
h1 { font-size: clamp(2rem, 4.5vw, 3.4rem); font-weight: 700; }
h2 { font-size: clamp(1.6rem, 3vw, 2.3rem); }
h3 { font-size: clamp(1.2rem, 2vw, 1.5rem); }
p { margin: 0 0 1em; }

.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.container-narrow { max-width: 860px; margin: 0 auto; padding: 0 24px; }

/* --- Navigation --- */
.site-nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--outline-variant);
}
.site-nav .nav-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 14px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.site-nav .brand {
  font-family: var(--font-serif);
  font-weight: 700;
  color: var(--primary);
  font-size: 1.05rem;
  letter-spacing: -0.01em;
  line-height: 1.1;
}
.site-nav .brand small {
  display: block;
  font-family: var(--font-sans);
  font-size: 0.7rem;
  font-weight: 500;
  color: var(--on-surface-variant);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-top: 2px;
}
.nav-links {
  display: flex;
  gap: 28px;
  align-items: center;
  list-style: none;
  padding: 0; margin: 0;
}
.nav-links a {
  color: var(--on-surface);
  font-weight: 500;
  font-size: 0.9rem;
  padding: 6px 0;
  position: relative;
}
.nav-links a:hover { color: var(--primary); }
.nav-links a.active { color: var(--primary); }
.nav-links a.active::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: -4px;
  height: 2px;
  background: var(--secondary);
  border-radius: 2px;
}
.nav-cta {
  background: var(--secondary);
  color: #fff !important;
  padding: 10px 18px;
  border-radius: var(--radius-sm);
  font-size: 0.88rem;
  font-weight: 600;
  transition: background .15s ease, transform .15s ease;
}
.nav-cta:hover { background: var(--primary); transform: translateY(-1px); }
.hamburger {
  display: none;
  background: none; border: none;
  color: var(--primary);
  font-size: 1.6rem;
  cursor: pointer;
  padding: 4px;
}

/* Mobile menu */
.mobile-menu {
  position: fixed;
  inset: 0;
  background: var(--surface-container-lowest);
  z-index: 200;
  display: none;
  flex-direction: column;
  padding: 24px;
}
.mobile-menu.open { display: flex; }
.mobile-menu-close {
  align-self: flex-end;
  background: none; border: none;
  font-size: 2rem; color: var(--primary);
  cursor: pointer;
}
.mobile-menu a {
  display: block;
  padding: 16px 0;
  font-size: 1.25rem;
  font-family: var(--font-serif);
  color: var(--primary);
  border-bottom: 1px solid var(--outline-variant);
}
.mobile-menu .nav-cta {
  display: block;
  text-align: center;
  margin-top: 24px;
  font-size: 1rem;
  font-family: var(--font-sans);
}

/* Main content spacing for fixed nav */
main { padding-top: 72px; }

/* --- Hero --- */
.hero {
  padding: 80px 0 60px;
  background:
    radial-gradient(circle at 20% 10%, rgba(0, 93, 184, 0.06), transparent 50%),
    radial-gradient(circle at 85% 85%, rgba(0, 39, 90, 0.05), transparent 60%),
    var(--surface-container-lowest);
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 56px;
  align-items: center;
}
.hero-portrait {
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  aspect-ratio: 4/5;
  object-fit: cover;
  width: 100%;
}
.eyebrow {
  display: inline-block;
  background: rgba(0, 39, 90, 0.06);
  color: var(--primary);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 6px 16px;
  border-radius: 999px;
  margin-bottom: 20px;
}
.hero h1 { margin-bottom: 16px; }
.hero-sub {
  font-size: 1.1rem;
  color: var(--on-surface-variant);
  max-width: 540px;
  margin-bottom: 28px;
}
.hero-cta-row {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 24px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 0.95rem;
  transition: all .15s ease;
  cursor: pointer;
  border: 1px solid transparent;
  text-align: center;
}
.btn-primary {
  background: var(--secondary);
  color: #fff;
}
.btn-primary:hover {
  background: var(--primary);
  color: #fff;
  transform: translateY(-1px);
  box-shadow: 0 4px 14px rgba(0, 39, 90, 0.25);
}
.btn-outline {
  background: transparent;
  color: var(--primary);
  border-color: var(--outline-variant);
}
.btn-outline:hover {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}

/* --- Stats bar --- */
.stats-bar {
  background: var(--surface-container-lowest);
  border-top: 1px solid var(--outline-variant);
  border-bottom: 1px solid var(--outline-variant);
  padding: 32px 0;
}
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  text-align: center;
}
.stat .num {
  font-family: var(--font-serif);
  font-size: 2.2rem;
  font-weight: 700;
  color: var(--primary);
  line-height: 1;
  display: block;
  margin-bottom: 6px;
}
.stat .label {
  font-size: 0.8rem;
  color: var(--on-surface-variant);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 500;
}

/* --- Trust bar (dark) --- */
.trust-bar {
  background: var(--primary);
  color: #fff;
  padding: 18px 0;
}
.trust-bar-inner {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 32px;
  flex-wrap: wrap;
  font-size: 0.82rem;
  letter-spacing: 0.04em;
}
.trust-bar-inner .badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: rgba(255, 255, 255, 0.92);
  font-weight: 500;
}
.trust-bar-inner .badge::before {
  content: "✓";
  color: var(--on-primary-container);
  font-weight: 700;
}

/* --- Section --- */
section { padding: 72px 0; }
.section-head { text-align: center; max-width: 720px; margin: 0 auto 48px; }
.section-head .eyebrow { margin-bottom: 14px; }
.section-head p { color: var(--on-surface-variant); font-size: 1.05rem; }

/* --- Cards --- */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.card {
  background: var(--surface-container-lowest);
  border-radius: var(--radius);
  padding: 32px;
  box-shadow: var(--shadow-card);
  transition: transform .2s ease, box-shadow .2s ease;
  display: flex;
  flex-direction: column;
  border: 1px solid rgba(0,0,0,0.02);
}
a.card { color: inherit; }
a.card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-card-hover);
}
.card .icon {
  width: 48px; height: 48px;
  background: rgba(0, 93, 184, 0.08);
  color: var(--secondary);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  margin-bottom: 18px;
  font-weight: 700;
}
.card h3 { margin-bottom: 10px; font-size: 1.2rem; }
.card p { color: var(--on-surface-variant); margin-bottom: 14px; flex: 1; }
.card .arrow {
  color: var(--secondary);
  font-weight: 600;
  font-size: 0.9rem;
}

/* --- CTA card (special) --- */
.card.card-cta {
  background: linear-gradient(135deg, var(--primary), var(--primary-container));
  color: #fff;
}
.card.card-cta h3 { color: #fff; }
.card.card-cta p { color: rgba(255,255,255,0.85); }
.card.card-cta .icon {
  background: rgba(255,255,255,0.15);
  color: #fff;
}
.card.card-cta .arrow { color: var(--on-primary-container); }

/* --- Why Dr. Tan / Feature rows --- */
.features-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
}
.feature {
  display: flex;
  gap: 20px;
  align-items: flex-start;
}
.feature .num-badge {
  min-width: 44px; height: 44px;
  border-radius: 50%;
  background: rgba(0, 93, 184, 0.08);
  color: var(--secondary);
  font-family: var(--font-serif);
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
}
.feature h3 { font-size: 1.1rem; margin-bottom: 6px; }
.feature p { color: var(--on-surface-variant); font-size: 0.95rem; }

/* --- Quote block --- */
.quote-block {
  background: var(--surface-container-highest);
  border-left: 4px solid var(--secondary);
  padding: 32px 36px;
  border-radius: var(--radius);
  margin: 40px 0;
}
.quote-block blockquote {
  margin: 0;
  font-family: var(--font-serif);
  font-size: 1.3rem;
  font-style: italic;
  color: var(--primary);
  line-height: 1.45;
}
.quote-block blockquote + blockquote { margin-top: 18px; }
.quote-block cite {
  display: block;
  margin-top: 18px;
  font-size: 0.85rem;
  font-style: normal;
  color: var(--on-surface-variant);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

/* --- Section variant: dark / primary --- */
.section-dark {
  background: var(--primary);
  color: #fff;
}
.section-dark h1, .section-dark h2, .section-dark h3 { color: #fff; }
.section-dark p { color: rgba(255, 255, 255, 0.82); }
.section-dark .eyebrow {
  background: rgba(255, 255, 255, 0.12);
  color: var(--on-primary-container);
}
.section-dark .btn-outline {
  color: #fff;
  border-color: rgba(255, 255, 255, 0.3);
}
.section-dark .btn-outline:hover {
  background: #fff;
  color: var(--primary);
  border-color: #fff;
}

/* --- FAQ accordion --- */
.faq-list { max-width: 820px; margin: 0 auto; }
.faq-item {
  border-bottom: 1px solid var(--outline-variant);
  padding: 18px 0;
}
.faq-item summary {
  list-style: none;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: 1.1rem;
  color: var(--primary);
  padding: 6px 0;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: "+";
  font-size: 1.6rem;
  color: var(--secondary);
  transition: transform .25s ease;
  font-weight: 300;
  line-height: 1;
}
.faq-item[open] summary::after { transform: rotate(45deg); }
.faq-item .faq-body {
  padding: 12px 0 4px;
  color: var(--on-surface-variant);
  font-size: 0.98rem;
  line-height: 1.65;
}

/* --- Comparison table --- */
.compare-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--surface-container-lowest);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  margin: 24px 0;
}
.compare-table th,
.compare-table td {
  padding: 16px 20px;
  text-align: left;
  border-bottom: 1px solid var(--outline-variant);
  font-size: 0.95rem;
}
.compare-table th {
  background: var(--surface-container-high);
  font-family: var(--font-serif);
  color: var(--primary);
  font-weight: 600;
}
.compare-table tr:last-child td { border-bottom: none; }
.compare-table .highlight-col {
  background: rgba(0, 93, 184, 0.04);
  font-weight: 600;
  color: var(--primary);
}
.compare-table thead th {
  background: var(--primary);
  color: #fff;
  font-family: var(--font-serif);
  font-weight: 600;
  border-bottom: 2px solid var(--primary);
}
.compare-table tbody th {
  width: 180px;
  background: var(--surface-container-high);
  vertical-align: top;
  white-space: normal;
}
.compare-table tbody td {
  vertical-align: top;
  color: var(--on-surface);
}
.compare-table tbody tr:nth-child(even) td,
.compare-table tbody tr:nth-child(even) th { background: var(--surface-container); }
.compare-wrap {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  border-radius: var(--radius);
  box-shadow: var(--shadow-card);
}
.compare-wrap .compare-table { box-shadow: none; margin: 0; min-width: 820px; }

/* --- Clinical author byline --- */
.clinical-byline {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.88rem;
  color: var(--on-surface-variant);
  margin: 20px 0 8px;
  padding: 12px 16px;
  background: var(--surface-container-low);
  border-left: 3px solid var(--primary);
  border-radius: 6px;
}
.clinical-byline strong { color: var(--primary); font-weight: 600; }
.clinical-byline a { color: var(--primary); text-decoration: underline; padding: 0; display: inline; }
.clinical-byline .byline-meta { font-size: 0.82rem; opacity: 0.8; }
.clinical-byline-avatar {
  width: 36px; height: 36px;
  border-radius: 50%;
  background: var(--primary);
  color: #fff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-serif);
  font-weight: 700;
  flex-shrink: 0;
}

/* --- Two-column service layout with sidebar CTA --- */
.service-layout {
  display: grid;
  grid-template-columns: 1fr 340px;
  gap: 56px;
  align-items: start;
}
.service-sidebar {
  position: sticky;
  top: 96px;
  background: var(--primary);
  color: #fff;
  padding: 32px;
  border-radius: var(--radius);
}
.service-sidebar h3 { color: #fff; font-size: 1.2rem; }
.service-sidebar p { color: rgba(255, 255, 255, 0.85); font-size: 0.9rem; }
.service-sidebar .btn {
  width: 100%;
  margin-top: 12px;
  background: #fff;
  color: var(--primary);
}
.service-sidebar .btn:hover {
  background: var(--on-primary-container);
  color: var(--primary);
}
.service-sidebar ul {
  list-style: none;
  padding: 0; margin: 18px 0 0;
  font-size: 0.88rem;
}
.service-sidebar ul li {
  padding: 8px 0;
  color: rgba(255,255,255,0.9);
  border-top: 1px solid rgba(255,255,255,0.15);
}
.service-sidebar ul li:first-child { border-top: none; }

/* --- Breadcrumbs --- */
.breadcrumbs {
  padding: 18px 0 0;
  font-size: 0.85rem;
  color: var(--on-surface-variant);
}
.breadcrumbs a { color: var(--on-surface-variant); }
.breadcrumbs a:hover { color: var(--primary); }
.breadcrumbs .sep { margin: 0 8px; opacity: 0.5; }
.breadcrumbs [aria-current="page"] { color: var(--primary); font-weight: 500; }

/* --- Lists --- */
.check-list {
  list-style: none;
  padding: 0; margin: 16px 0;
}
.check-list li {
  padding: 8px 0 8px 32px;
  position: relative;
  color: var(--on-surface-variant);
}
.check-list li::before {
  content: "✓";
  position: absolute;
  left: 0; top: 8px;
  color: var(--secondary);
  font-weight: 700;
}

/* --- Ablation pattern grid --- */
.pattern-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  margin: 24px 0;
}
.pattern-grid-6 {
  grid-template-columns: repeat(3, 1fr);
}
.pattern-tile {
  background: var(--surface-container-lowest);
  padding: 18px 18px 20px;
  border-radius: var(--radius);
  border: 1px solid var(--outline-variant);
  text-align: center;
  margin: 0;
  transition: box-shadow 0.18s ease, transform 0.18s ease, border-color 0.18s ease;
}
.pattern-tile:hover {
  box-shadow: 0 6px 24px rgba(0, 39, 90, 0.10);
  transform: translateY(-2px);
  border-color: rgba(0, 93, 184, 0.35);
}
.pattern-tile .pattern-viz {
  width: 140px; height: 130px;
  margin: 0 auto 14px;
  display: block;
}
.pattern-tile .pattern-img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 260px;
  margin: 0 auto 14px;
  border-radius: 10px;
  background: #fff;
  box-shadow: 0 2px 10px rgba(0, 39, 90, 0.06);
  border: 1px solid var(--outline-variant);
}
.pattern-tile figcaption {
  display: block;
}
.pattern-tile h4 {
  font-family: var(--font-serif);
  color: var(--primary);
  font-size: 1rem;
  margin: 0 0 4px;
}
.pattern-tile p {
  font-size: 0.82rem;
  color: var(--on-surface-variant);
  margin: 0;
  line-height: 1.45;
}
@media (max-width: 900px) {
  .pattern-grid-6 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 560px) {
  .pattern-grid, .pattern-grid-6 { grid-template-columns: 1fr; }
}

/* --- Tag pills --- */
.tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 24px 0;
}
.tag {
  background: var(--surface-container);
  color: var(--primary);
  padding: 8px 16px;
  border-radius: 999px;
  font-size: 0.83rem;
  font-weight: 500;
  border: 1px solid var(--outline-variant);
}
.tag--accent {
  background: rgba(0, 93, 184, 0.08);
  border-color: transparent;
  color: var(--primary);
}

/* --- Callout box --- */
.callout {
  background: rgba(0, 93, 184, 0.06);
  border-left: 4px solid var(--secondary);
  padding: 24px 28px;
  border-radius: var(--radius);
  margin: 24px 0;
}
.callout h4 {
  font-size: 1rem;
  margin-bottom: 8px;
  color: var(--primary);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.callout p { color: var(--on-surface-variant); margin: 0; font-size: 0.95rem; }

/* --- Credential badges --- */
.cred-row {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin: 20px 0 0;
}
.cred {
  background: var(--surface-container-lowest);
  border: 1px solid var(--outline-variant);
  padding: 10px 18px;
  border-radius: 999px;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--primary);
}

/* --- Timeline --- */
.timeline { border-left: 2px solid var(--outline-variant); padding-left: 28px; margin: 24px 0; }
.timeline-item {
  position: relative;
  padding-bottom: 22px;
}
.timeline-item::before {
  content: "";
  position: absolute;
  left: -36px;
  top: 8px;
  width: 14px; height: 14px;
  border-radius: 50%;
  background: var(--secondary);
  border: 3px solid var(--surface);
}
.timeline-year {
  font-family: var(--font-serif);
  color: var(--primary);
  font-weight: 700;
  font-size: 1rem;
  display: block;
}
.timeline-item p { color: var(--on-surface-variant); margin: 2px 0 0; font-size: 0.95rem; }

/* --- Footer --- */
.site-footer {
  background: var(--tertiary);
  color: rgba(255, 255, 255, 0.85);
  padding: 60px 0 28px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}
.site-footer h4 {
  color: #fff;
  font-family: var(--font-sans);
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 18px;
}
.site-footer p { color: rgba(255, 255, 255, 0.7); font-size: 0.9rem; }
.site-footer a {
  color: rgba(255, 255, 255, 0.85);
  display: block;
  padding: 5px 0;
  font-size: 0.9rem;
}
.site-footer a:hover { color: #fff; }
.footer-brand {
  font-family: var(--font-serif);
  color: #fff;
  font-size: 1.15rem;
  font-weight: 700;
  display: block;
  margin-bottom: 10px;
}
.social-row {
  display: flex;
  gap: 12px;
  margin-top: 18px;
}
.social-row a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px; height: 36px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.08);
  padding: 0;
  transition: background .15s ease;
}
.social-row a:hover { background: var(--secondary); }
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.15);
  padding-top: 24px;
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.6);
  line-height: 1.6;
}
.footer-bottom p { color: inherit; margin: 0 0 6px; }

/* --- Mobile sticky CTA bar --- */
.sticky-cta {
  display: none;
  position: fixed;
  bottom: 0; left: 0; right: 0;
  background: #fff;
  border-top: 1px solid var(--outline-variant);
  padding: 10px 14px;
  z-index: 90;
  gap: 10px;
  box-shadow: 0 -4px 16px rgba(0,0,0,0.05);
}
.sticky-cta a {
  flex: 1;
  text-align: center;
  padding: 12px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 0.9rem;
}
.sticky-cta .call {
  background: var(--surface-container-high);
  color: var(--primary);
}
.sticky-cta .book {
  background: var(--secondary);
  color: #fff;
}

/* --- Responsive --- */
@media (max-width: 960px) {
  .nav-links { display: none; }
  .hamburger { display: inline-flex; }
  .hero-grid { grid-template-columns: 1fr; }
  .hero-portrait { max-width: 420px; margin: 0 auto; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 24px; }
  .cards-grid { grid-template-columns: 1fr; }
  .features-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .service-layout { grid-template-columns: 1fr; gap: 32px; }
  .service-sidebar { position: static; }
  .sticky-cta { display: flex; }
  main { padding-bottom: 80px; }
  section { padding: 52px 0; }
  .trust-bar-inner { gap: 18px; font-size: 0.75rem; }
  .quote-block { padding: 24px; }
  .quote-block blockquote { font-size: 1.1rem; }
  .pattern-grid { grid-template-columns: 1fr 1fr; }
  .compare-table { font-size: 0.85rem; display: block; overflow-x: auto; }
}

@media (max-width: 520px) {
  h1 { font-size: 2rem; }
  h2 { font-size: 1.5rem; }
  .stat .num { font-size: 1.6rem; }
  .card { padding: 24px; }
}

/* --- Utilities --- */
.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;
}
.text-center { text-align: center; }
.mt-lg { margin-top: 48px; }
.mb-lg { margin-bottom: 48px; }