/* ============================================================
   ClearPath Biohazard Solutions — Design System
   biohazardsanfrancisco.com
   Mobile-first | WCAG AA | Glassmorphism + Bento Grid
   ============================================================ */

/* ── 1. CUSTOM PROPERTIES ───────────────────────────────── */
:root {
  /* Brand colors */
  --clr-p700: #0D1B2A;
  --clr-p600: #162335;
  --clr-p500: #1E3148;
  --clr-accent: #06B6D4;
  --clr-accent-dark: #0891B2;
  --clr-accent-glow: rgba(6,182,212,.35);
  --clr-off-white: #F5F7F9;
  --clr-dark: #0A0A0A;
  --clr-border: #C9DDE9;
  --clr-border-glass: rgba(201,221,233,.15);
  --clr-muted: #64748B;
  --clr-success: #10B981;
  --clr-warn: #F59E0B;

  /* Typography */
  --font-heading: 'Manrope', system-ui, sans-serif;
  --font-body: 'Source Sans 3', system-ui, sans-serif;
  --fs-h1: clamp(2.5rem, 5vw, 4.5rem);
  --fs-h2: clamp(2rem, 3.5vw, 3rem);
  --fs-h3: clamp(1.25rem, 2vw, 1.5rem);
  --fs-h4: clamp(1.125rem, 1.5vw, 1.25rem);
  --fs-body: clamp(1.0625rem, 1.5vw, 1.125rem);
  --fs-sm: 0.9375rem;
  --fs-xs: 0.8125rem;
  --lh-heading: 1.1;
  --lh-body: 1.65;

  /* Radii */
  --r-btn: 999px;
  --r-card: 20px;
  --r-card-sm: 12px;
  --r-icon: 10px;
  --r-glass: 16px;

  /* Spacing */
  --sp-xs: 0.5rem;
  --sp-sm: 1rem;
  --sp-md: 1.5rem;
  --sp-lg: 2.5rem;
  --sp-xl: 4rem;
  --sp-2xl: 6rem;
  --sp-section: clamp(4rem, 8vw, 7rem);

  /* Shadows */
  --shadow-sm: 0 1px 3px rgba(0,0,0,.12);
  --shadow-md: 0 4px 16px rgba(0,0,0,.14);
  --shadow-lg: 0 8px 32px rgba(0,0,0,.18);
  --shadow-glow: 0 0 24px var(--clr-accent-glow);
  --shadow-card: 0 2px 20px rgba(13,27,42,.12);

  /* Layout */
  --container-max: 1240px;
  --container-pad: clamp(1rem, 5vw, 2rem);
  --nav-h: 72px;

  /* Transitions */
  --ease: cubic-bezier(.22,.97,.52,1);
  --dur: 240ms;
}

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

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

body {
  font-family: var(--font-body);
  font-size: var(--fs-body);
  line-height: var(--lh-body);
  color: var(--clr-dark);
  background: var(--clr-off-white);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img, picture, video, canvas, svg {
  display: block;
  max-width: 100%;
}

input, button, textarea, select {
  font: inherit;
}

p, h1, h2, h3, h4, h5, h6 {
  overflow-wrap: break-word;
}

a {
  color: var(--clr-accent-dark);
  text-decoration: underline;
  text-underline-offset: 3px;
}

ul, ol {
  list-style: none;
}

/* ── 3. ACCESSIBILITY ───────────────────────────────────── */
.skip-link {
  position: absolute;
  top: -100%;
  left: 1rem;
  background: var(--clr-accent);
  color: var(--clr-dark);
  font-weight: 700;
  padding: .5rem 1rem;
  border-radius: 0 0 var(--r-card-sm) var(--r-card-sm);
  z-index: 9999;
  text-decoration: none;
  transition: top var(--dur) var(--ease);
}
.skip-link:focus {
  top: 0;
}

:focus-visible {
  outline: 2px solid var(--clr-accent);
  outline-offset: 3px;
  border-radius: 4px;
}

.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;
}

/* ── 4. TYPOGRAPHY ──────────────────────────────────────── */
h1, h2, h3, h4 {
  font-family: var(--font-heading);
  line-height: var(--lh-heading);
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--clr-p700);
}

h1 { font-size: var(--fs-h1); }
h2 { font-size: var(--fs-h2); font-weight: 800; }
h3 { font-size: var(--fs-h3); font-weight: 700; }
h4 { font-size: var(--fs-h4); font-weight: 700; }

.text-accent { color: var(--clr-accent); }
.text-muted  { color: var(--clr-muted); }
.text-white  { color: #fff; }
.text-center { text-align: center; }

.eyebrow {
  display: inline-block;
  font-family: var(--font-heading);
  font-size: var(--fs-xs);
  font-weight: 700;
  letter-spacing: .15em;
  text-transform: uppercase;
  color: var(--clr-accent);
  margin-bottom: .75rem;
}

.section-label {
  font-family: var(--font-heading);
  font-size: var(--fs-xs);
  font-weight: 700;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--clr-accent);
}

/* ── 5. LAYOUT ──────────────────────────────────────────── */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-pad);
}

.section-pad {
  padding-block: var(--sp-section);
}

.section-pad-sm {
  padding-block: calc(var(--sp-section) * .6);
}

.section-dark {
  background: var(--clr-p700);
  color: var(--clr-off-white);
}
.section-dark h1,
.section-dark h2,
.section-dark h3,
.section-dark h4 {
  color: #fff;
}

.section-mid {
  background: var(--clr-p600);
  color: var(--clr-off-white);
}

.section-light {
  background: #fff;
}

.section-tint {
  background: color-mix(in srgb, var(--clr-accent) 5%, var(--clr-off-white));
}

/* ── 6. NAVIGATION ──────────────────────────────────────── */
.site-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 900;
  height: var(--nav-h);
  display: flex;
  align-items: center;
  background: transparent;
  transition: background var(--dur) var(--ease),
              box-shadow var(--dur) var(--ease),
              backdrop-filter var(--dur) var(--ease);
}

.site-nav.scrolled {
  background: rgba(13,27,42,.9);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow: 0 1px 0 var(--clr-border-glass);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-sm);
}

.nav-logo {
  display: flex;
  align-items: center;
  flex-shrink: 0;
  text-decoration: none;
}

.nav-logo img,
.nav-logo svg {
  height: 40px;
  width: auto;
}

.nav-links {
  display: none;
  align-items: center;
  gap: 0.25rem;
}

.nav-links a {
  font-family: var(--font-heading);
  font-size: .9375rem;
  font-weight: 600;
  color: rgba(255,255,255,.85);
  text-decoration: none;
  padding: .4rem .75rem;
  border-radius: var(--r-card-sm);
  transition: color var(--dur), background var(--dur);
}
.nav-links a:hover,
.nav-links a[aria-current="page"] {
  color: #fff;
  background: rgba(255,255,255,.08);
}

.nav-cta {
  display: none;
  align-items: center;
  gap: var(--sp-xs);
}

.hamburger {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  background: rgba(255,255,255,.1);
  border: 1px solid rgba(255,255,255,.15);
  border-radius: var(--r-card-sm);
  cursor: pointer;
  padding: 10px;
  transition: background var(--dur);
  margin-left: auto;
}
.hamburger:hover { background: rgba(255,255,255,.18); }
.hamburger span {
  display: block;
  height: 2px;
  background: #fff;
  border-radius: 2px;
  transition: transform var(--dur) var(--ease), opacity var(--dur);
  transform-origin: center;
}
.hamburger[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.hamburger[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}
.hamburger[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ── 7. MOBILE MENU ─────────────────────────────────────── */
.mobile-menu {
  position: fixed;
  inset: 0;
  background: var(--clr-p700);
  z-index: 800;
  display: flex;
  flex-direction: column;
  padding: calc(var(--nav-h) + 2rem) var(--container-pad) 2rem;
  transform: translateX(100%);
  transition: transform .35s var(--ease);
  overflow-y: auto;
}
.mobile-menu.is-open {
  transform: translateX(0);
}

.mobile-menu nav a {
  display: block;
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 700;
  color: rgba(255,255,255,.85);
  text-decoration: none;
  padding: .75rem 0;
  border-bottom: 1px solid rgba(255,255,255,.08);
  transition: color var(--dur), padding-left var(--dur);
}
.mobile-menu nav a:hover {
  color: var(--clr-accent);
  padding-left: .5rem;
}

.mobile-menu-cta {
  margin-top: 2rem;
  display: flex;
  flex-direction: column;
  gap: .75rem;
}

/* ── 8. BUTTONS ─────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .5rem;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1rem;
  line-height: 1;
  text-decoration: none;
  border: none;
  cursor: pointer;
  border-radius: var(--r-btn);
  padding: .875rem 1.75rem;
  transition: transform var(--dur) var(--ease),
              box-shadow var(--dur) var(--ease),
              background var(--dur), opacity var(--dur);
  white-space: nowrap;
}
.btn:active { transform: scale(.97); }

.btn-primary {
  background: var(--clr-accent);
  color: var(--clr-dark);
  box-shadow: 0 4px 16px rgba(6,182,212,.4);
}
.btn-primary:hover {
  background: #22D3EE;
  box-shadow: 0 6px 24px rgba(6,182,212,.55);
  transform: translateY(-1px);
  color: var(--clr-dark);
}

.btn-outline {
  background: transparent;
  color: #fff;
  border: 2px solid rgba(255,255,255,.4);
}
.btn-outline:hover {
  background: rgba(255,255,255,.08);
  border-color: rgba(255,255,255,.7);
  color: #fff;
  transform: translateY(-1px);
}

.btn-dark {
  background: var(--clr-p700);
  color: #fff;
}
.btn-dark:hover {
  background: var(--clr-p600);
  color: #fff;
  transform: translateY(-1px);
}

.btn-lg {
  font-size: 1.125rem;
  padding: 1.125rem 2.25rem;
}

.btn-sm {
  font-size: .875rem;
  padding: .625rem 1.25rem;
}

.btn-full { width: 100%; }

.btn-phone {
  background: var(--clr-accent);
  color: var(--clr-dark);
  box-shadow: 0 4px 16px rgba(6,182,212,.4);
}
.btn-phone:hover {
  background: #22D3EE;
  box-shadow: 0 6px 28px rgba(6,182,212,.6);
  transform: translateY(-1px);
  color: var(--clr-dark);
}
.btn-phone svg { flex-shrink: 0; }

/* ── 9. TRUST CHIPS / BADGES ────────────────────────────── */
.trust-chips {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
  margin-top: 1.5rem;
}

.trust-chip {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  font-family: var(--font-heading);
  font-size: var(--fs-xs);
  font-weight: 700;
  letter-spacing: .04em;
  color: rgba(255,255,255,.9);
  background: rgba(255,255,255,.08);
  border: 1px solid rgba(255,255,255,.15);
  border-radius: var(--r-btn);
  padding: .35rem .9rem;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}
.trust-chip svg, .trust-chip .chip-icon {
  width: 14px;
  height: 14px;
  color: var(--clr-accent);
  flex-shrink: 0;
}

/* ── 10. HERO SECTION ───────────────────────────────────── */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: center;
  overflow: hidden;
  padding-top: var(--nav-h);
}

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

.hero-bg-img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  filter: brightness(.4) saturate(.8);
}

.hero-gradient {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(135deg, rgba(13,27,42,.92) 0%, rgba(13,27,42,.7) 50%, rgba(6,182,212,.12) 100%),
    radial-gradient(ellipse at 20% 50%, rgba(6,182,212,.18) 0%, transparent 60%),
    radial-gradient(ellipse at 80% 20%, rgba(13,27,42,.6) 0%, transparent 50%);
}

.hero-grain {
  position: absolute;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='200' height='200'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.75' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='200' height='200' filter='url(%23n)' opacity='0.04'/%3E%3C/svg%3E");
  opacity: .4;
  pointer-events: none;
}

.hero-inner {
  position: relative;
  z-index: 1;
  display: grid;
  gap: var(--sp-lg);
  padding-block: var(--sp-xl);
}

.hero-content {
  max-width: 700px;
}

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  background: rgba(6,182,212,.12);
  border: 1px solid rgba(6,182,212,.3);
  border-radius: var(--r-btn);
  padding: .35rem 1rem .35rem .5rem;
  font-family: var(--font-heading);
  font-size: var(--fs-xs);
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--clr-accent);
  margin-bottom: 1.25rem;
}
.hero-eyebrow .dot {
  width: 8px;
  height: 8px;
  background: var(--clr-accent);
  border-radius: 50%;
  animation: pulse-dot 2s infinite;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: .5; transform: scale(.7); }
}

.hero h1 {
  color: #fff;
  margin-bottom: 1.25rem;
}
.hero h1 em {
  font-style: normal;
  color: var(--clr-accent);
}

.hero-lead {
  font-size: clamp(1.0625rem, 2vw, 1.25rem);
  color: rgba(255,255,255,.8);
  margin-bottom: 2rem;
  line-height: 1.6;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: .75rem;
  margin-bottom: 2rem;
}

/* Glass cards row */
.hero-glass-row {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: .75rem;
  margin-top: var(--sp-md);
}

.glass-card {
  background: rgba(255,255,255,.07);
  border: 1px solid rgba(255,255,255,.12);
  border-radius: var(--r-glass);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  padding: 1.25rem;
}

.glass-card-stat {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 1rem;
}
.glass-stat-num {
  font-family: var(--font-heading);
  font-size: 1.75rem;
  font-weight: 800;
  color: var(--clr-accent);
  line-height: 1;
  margin-bottom: .2rem;
}
.glass-stat-label {
  font-size: var(--fs-xs);
  color: rgba(255,255,255,.65);
  font-weight: 600;
  letter-spacing: .04em;
  text-transform: uppercase;
}

/* ── 11. CERTIFIED CLEAN SHIELD ─────────────────────────── */
.certified-shield {
  display: inline-flex;
  align-items: center;
  gap: .6rem;
  background: rgba(6,182,212,.1);
  border: 1.5px solid rgba(6,182,212,.35);
  border-radius: var(--r-glass);
  padding: .6rem 1.1rem;
  font-family: var(--font-heading);
  font-size: var(--fs-xs);
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--clr-accent);
}
.certified-shield svg { flex-shrink: 0; }

/* ── 12. BENTO GRID — SERVICES ──────────────────────────── */
.bento-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
}

.bento-card {
  background: #fff;
  border: 1px solid var(--clr-border);
  border-radius: var(--r-card);
  padding: 1.5rem;
  box-shadow: var(--shadow-card);
  transition: transform var(--dur) var(--ease),
              box-shadow var(--dur) var(--ease),
              border-color var(--dur);
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  gap: .75rem;
  text-decoration: none;
  color: inherit;
}
.bento-card::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: var(--r-card);
  background: linear-gradient(135deg, rgba(6,182,212,.04) 0%, transparent 60%);
  opacity: 0;
  transition: opacity var(--dur);
}
.bento-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 36px rgba(13,27,42,.15);
  border-color: rgba(6,182,212,.35);
}
.bento-card:hover::after { opacity: 1; }

.bento-icon {
  width: 44px;
  height: 44px;
  background: rgba(6,182,212,.1);
  border-radius: var(--r-icon);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.bento-icon svg { width: 22px; height: 22px; color: var(--clr-accent); }

.bento-card h3 {
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--clr-p700);
  margin: 0;
}

.bento-card p {
  font-size: var(--fs-sm);
  color: var(--clr-muted);
  line-height: 1.55;
  margin: 0;
  flex: 1;
}

.bento-link {
  display: inline-flex;
  align-items: center;
  gap: .3rem;
  font-family: var(--font-heading);
  font-size: var(--fs-xs);
  font-weight: 700;
  color: var(--clr-accent);
  text-decoration: none;
  letter-spacing: .04em;
  transition: gap var(--dur);
}
.bento-card:hover .bento-link { gap: .5rem; }

/* ── 13. PROCESS STEPS ──────────────────────────────────── */
.process-grid {
  display: grid;
  gap: 1.5rem;
  counter-reset: step;
}

.process-step {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 1.25rem;
  align-items: start;
}

.step-num {
  font-family: var(--font-heading);
  font-size: 4rem;
  font-weight: 800;
  line-height: 1;
  color: transparent;
  -webkit-text-stroke: 2px var(--clr-accent);
  opacity: .4;
  min-width: 2.5rem;
  text-align: center;
  flex-shrink: 0;
  transition: opacity var(--dur);
}
.process-step:hover .step-num { opacity: 1; }

.step-body h3 { margin-bottom: .35rem; }
.step-body p  { color: var(--clr-muted); font-size: var(--fs-sm); }

/* ── 14. SPLIT SECTION ──────────────────────────────────── */
.split {
  display: grid;
  gap: var(--sp-lg);
  align-items: center;
}
.split-reverse { }

.split-img {
  border-radius: var(--r-card);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}
.split-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform .6s var(--ease);
}
.split-img:hover img { transform: scale(1.03); }

.split-content { display: flex; flex-direction: column; gap: 1rem; }
.split-content p { color: var(--clr-muted); }

/* ── 15. CALLOUT BOXES ──────────────────────────────────── */
.callout {
  border-radius: var(--r-card-sm);
  padding: 1.25rem 1.5rem;
  display: flex;
  gap: .75rem;
  font-size: var(--fs-sm);
  line-height: 1.55;
}
.callout-icon { flex-shrink: 0; margin-top: .1rem; }

.callout-tip {
  background: rgba(16,185,129,.08);
  border-left: 3px solid var(--clr-success);
  color: #064E3B;
}
.callout-tip .callout-icon { color: var(--clr-success); }
.callout-tip strong { color: #065F46; }

.callout-warn {
  background: rgba(245,158,11,.08);
  border-left: 3px solid var(--clr-warn);
  color: #78350F;
}
.callout-warn .callout-icon { color: var(--clr-warn); }
.callout-warn strong { color: #92400E; }

.callout-info {
  background: rgba(6,182,212,.08);
  border-left: 3px solid var(--clr-accent);
  color: var(--clr-p700);
}
.callout-info .callout-icon { color: var(--clr-accent); }

/* ── 16. COST TABLE ─────────────────────────────────────── */
.cost-table {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--fs-sm);
  border-radius: var(--r-card);
  overflow: hidden;
  box-shadow: var(--shadow-card);
}
.cost-table thead {
  background: var(--clr-p700);
  color: #fff;
  font-family: var(--font-heading);
  font-weight: 700;
}
.cost-table th, .cost-table td {
  padding: .875rem 1.25rem;
  text-align: left;
  vertical-align: middle;
}
.cost-table tbody tr:nth-child(even) {
  background: rgba(6,182,212,.04);
}
.cost-table tbody tr {
  border-bottom: 1px solid var(--clr-border);
  transition: background var(--dur);
}
.cost-table tbody tr:hover { background: rgba(6,182,212,.07); }

/* ── 17. CTA BAND ───────────────────────────────────────── */
.cta-band {
  background: var(--clr-p700);
  position: relative;
  overflow: hidden;
  text-align: center;
  padding-block: var(--sp-xl);
}
.cta-band::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 50% 50%, rgba(6,182,212,.2) 0%, transparent 70%);
  pointer-events: none;
}
.cta-band .container { position: relative; z-index: 1; }
.cta-band h2 { color: #fff; margin-bottom: .75rem; }
.cta-band p  { color: rgba(255,255,255,.7); margin-bottom: 2rem; }

.phone-mega {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 800;
  color: var(--clr-accent);
  text-decoration: none;
  letter-spacing: -.02em;
  display: inline-block;
  line-height: 1;
  margin-bottom: 1.5rem;
  text-shadow: 0 0 40px rgba(6,182,212,.4);
  transition: text-shadow var(--dur), transform var(--dur);
}
.phone-mega:hover {
  text-shadow: 0 0 60px rgba(6,182,212,.65);
  transform: scale(1.03);
  color: var(--clr-accent);
}

/* ── 18. FAQ ACCORDION ──────────────────────────────────── */
.faq-list { display: flex; flex-direction: column; gap: .75rem; }

.faq-item {
  background: #fff;
  border: 1px solid var(--clr-border);
  border-radius: var(--r-card-sm);
  overflow: hidden;
  transition: box-shadow var(--dur);
}
.faq-item:hover { box-shadow: var(--shadow-sm); }

.faq-item summary {
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.125rem 1.375rem;
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 700;
  color: var(--clr-p700);
  cursor: pointer;
  user-select: none;
  position: relative;
}
.faq-item summary::-webkit-details-marker { display: none; }

.faq-chevron {
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  color: var(--clr-accent);
  transition: transform var(--dur) var(--ease);
}
.faq-item[open] .faq-chevron { transform: rotate(180deg); }
.faq-item[open] summary { color: var(--clr-accent-dark); }
.faq-item[open] {
  border-color: rgba(6,182,212,.3);
  box-shadow: 0 2px 12px rgba(6,182,212,.1);
}

.faq-body {
  padding: 0 1.375rem 1.25rem;
  color: var(--clr-muted);
  font-size: var(--fs-sm);
  line-height: 1.65;
}

/* ── 19. AREAS / LOCATION GRID ──────────────────────────── */
.areas-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: .75rem;
}

.area-card {
  background: #fff;
  border: 1px solid var(--clr-border);
  border-radius: var(--r-card-sm);
  padding: 1.25rem;
  text-decoration: none;
  color: var(--clr-p700);
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: var(--fs-sm);
  display: flex;
  align-items: center;
  gap: .6rem;
  transition: border-color var(--dur), background var(--dur), transform var(--dur);
}
.area-card:hover {
  border-color: var(--clr-accent);
  background: rgba(6,182,212,.04);
  transform: translateY(-1px);
  color: var(--clr-accent-dark);
}
.area-card svg { color: var(--clr-accent); flex-shrink: 0; }

/* ── 20. INNER PAGE HERO ────────────────────────────────── */
.page-hero {
  background: var(--clr-p700);
  position: relative;
  overflow: hidden;
  padding-top: calc(var(--nav-h) + var(--sp-xl));
  padding-bottom: var(--sp-xl);
}
.page-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 10% 50%, rgba(6,182,212,.15) 0%, transparent 55%),
    radial-gradient(ellipse at 90% 20%, rgba(13,27,42,.8) 0%, transparent 50%);
  pointer-events: none;
}
.page-hero .container { position: relative; z-index: 1; }
.page-hero h1 { color: #fff; margin-bottom: .75rem; }
.page-hero .lead {
  color: rgba(255,255,255,.75);
  font-size: clamp(1rem, 2vw, 1.2rem);
  max-width: 60ch;
}

/* ── 21. BREADCRUMB ─────────────────────────────────────── */
.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: .3rem;
  align-items: center;
  font-size: var(--fs-xs);
  font-family: var(--font-heading);
  font-weight: 600;
  margin-bottom: 1rem;
}
.breadcrumb a {
  color: rgba(255,255,255,.55);
  text-decoration: none;
  transition: color var(--dur);
}
.breadcrumb a:hover { color: var(--clr-accent); }
.breadcrumb span { color: rgba(255,255,255,.35); padding-inline: .2rem; }
.breadcrumb [aria-current="page"] { color: rgba(255,255,255,.85); }

/* ── 22. TOC (TABLE OF CONTENTS) ────────────────────────── */
.toc-strip {
  background: rgba(6,182,212,.05);
  border-top: 1px solid rgba(6,182,212,.12);
  border-bottom: 1px solid rgba(6,182,212,.12);
  padding-block: .875rem;
  overflow-x: auto;
}
.toc-strip-inner {
  display: flex;
  gap: .25rem;
  min-width: max-content;
}
.toc-strip a {
  font-family: var(--font-heading);
  font-size: var(--fs-xs);
  font-weight: 700;
  color: var(--clr-muted);
  text-decoration: none;
  padding: .35rem .75rem;
  border-radius: var(--r-btn);
  white-space: nowrap;
  transition: color var(--dur), background var(--dur);
}
.toc-strip a:hover,
.toc-strip a.is-active {
  color: var(--clr-accent);
  background: rgba(6,182,212,.1);
}

.toc-sidebar {
  display: none;
  position: sticky;
  top: calc(var(--nav-h) + 1rem);
  background: #fff;
  border: 1px solid var(--clr-border);
  border-radius: var(--r-card-sm);
  padding: 1.25rem;
  font-size: var(--fs-sm);
}
.toc-sidebar-title {
  font-family: var(--font-heading);
  font-size: var(--fs-xs);
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--clr-muted);
  margin-bottom: .75rem;
}
.toc-sidebar ol { display: flex; flex-direction: column; gap: .3rem; counter-reset: toc; }
.toc-sidebar a {
  font-family: var(--font-heading);
  font-weight: 600;
  color: var(--clr-muted);
  text-decoration: none;
  display: block;
  padding: .3rem .5rem;
  border-radius: 6px;
  transition: color var(--dur), background var(--dur);
}
.toc-sidebar a:hover,
.toc-sidebar a.is-active {
  color: var(--clr-accent-dark);
  background: rgba(6,182,212,.07);
}

/* ── 23. CALL CARD SIDEBAR ──────────────────────────────── */
.call-card {
  display: none;
  background: var(--clr-p700);
  border-radius: var(--r-card);
  padding: 1.5rem;
  color: #fff;
  position: sticky;
  top: calc(var(--nav-h) + 1rem);
  margin-top: 2rem;
  text-align: center;
  box-shadow: var(--shadow-lg);
}
.call-card h4 { color: var(--clr-accent); margin-bottom: .5rem; }
.call-card p  { color: rgba(255,255,255,.7); font-size: var(--fs-sm); margin-bottom: 1rem; }
.call-card-num {
  font-family: var(--font-heading);
  font-size: 1.375rem;
  font-weight: 800;
  color: #fff;
  text-decoration: none;
  display: block;
  margin-bottom: 1rem;
}
.call-card-num:hover { color: var(--clr-accent); }
.call-card .certified-shield { justify-content: center; width: 100%; margin-top: .75rem; }

/* ── 24. INNER PAGE LAYOUT ──────────────────────────────── */
.inner-layout {
  display: grid;
  gap: var(--sp-lg);
}
.inner-main { min-width: 0; }
.inner-sidebar { display: none; }

.prose { display: flex; flex-direction: column; gap: 1.25rem; }
.prose p { color: #374151; }
.prose h2, .prose h3 { margin-top: .5rem; }
.prose ul { list-style: disc; padding-left: 1.5rem; display: flex; flex-direction: column; gap: .4rem; }
.prose ul li { color: #374151; font-size: var(--fs-sm); }
.prose strong { color: var(--clr-p700); }
.prose a { color: var(--clr-accent-dark); }

/* ── 25. SYMPTOM CHECKER ────────────────────────────────── */
.symptom-checker {
  background: var(--clr-p700);
  border-radius: var(--r-card);
  padding: 2rem;
  color: #fff;
}
.symptom-checker h3 { color: var(--clr-accent); margin-bottom: 1rem; }
.symptom-list {
  display: grid;
  gap: .5rem;
}
.symptom-item {
  display: flex;
  align-items: center;
  gap: .75rem;
  font-size: var(--fs-sm);
  color: rgba(255,255,255,.8);
}
.symptom-dot {
  width: 8px;
  height: 8px;
  background: var(--clr-accent);
  border-radius: 50%;
  flex-shrink: 0;
}
.symptom-cta { margin-top: 1.5rem; }

/* ── 26. REVIEWS / TESTIMONIALS ─────────────────────────── */
.reviews-grid {
  display: grid;
  gap: 1rem;
}

.review-card {
  background: #fff;
  border: 1px solid var(--clr-border);
  border-radius: var(--r-card);
  padding: 1.5rem;
  box-shadow: var(--shadow-sm);
}
.review-stars {
  display: flex;
  gap: 2px;
  margin-bottom: .75rem;
  color: #FBBF24;
}
.review-stars svg { width: 16px; height: 16px; }
.review-text {
  color: #374151;
  font-size: var(--fs-sm);
  line-height: 1.6;
  margin-bottom: .75rem;
}
.review-author {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: var(--fs-xs);
  color: var(--clr-muted);
}

/* ── 27. IMAGE SECTION ──────────────────────────────────── */
.img-section {
  border-radius: var(--r-card);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  position: relative;
}
.img-section img {
  width: 100%;
  display: block;
  object-fit: cover;
}

/* ── 28. FOOTER ─────────────────────────────────────────── */
.site-footer {
  background: var(--clr-dark);
  color: rgba(255,255,255,.65);
  padding-top: var(--sp-xl);
  padding-bottom: calc(var(--sp-lg) + 72px); /* clearance for sticky bar */
}

.footer-grid {
  display: grid;
  gap: 2.5rem;
  margin-bottom: var(--sp-xl);
}

.footer-brand { max-width: 300px; }
.footer-brand img, .footer-brand svg { height: 40px; width: auto; margin-bottom: 1rem; }
.footer-brand p {
  font-size: var(--fs-sm);
  line-height: 1.6;
  color: rgba(255,255,255,.5);
}

.footer-col h4 {
  font-family: var(--font-heading);
  font-size: var(--fs-xs);
  font-weight: 700;
  letter-spacing: .15em;
  text-transform: uppercase;
  color: var(--clr-accent);
  margin-bottom: 1rem;
}
.footer-col ul { display: flex; flex-direction: column; gap: .5rem; }
.footer-col a {
  color: rgba(255,255,255,.55);
  text-decoration: none;
  font-size: var(--fs-sm);
  transition: color var(--dur);
}
.footer-col a:hover { color: #fff; }

.footer-contact-line {
  display: flex;
  align-items: center;
  gap: .5rem;
  font-size: var(--fs-sm);
  color: rgba(255,255,255,.55);
  margin-bottom: .5rem;
}
.footer-contact-line svg { color: var(--clr-accent); flex-shrink: 0; width: 14px; height: 14px; }
.footer-contact-line a { color: rgba(255,255,255,.55); text-decoration: none; }
.footer-contact-line a:hover { color: #fff; }

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.08);
  padding-top: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  font-size: var(--fs-xs);
  color: rgba(255,255,255,.35);
}
.footer-legal { display: flex; flex-wrap: wrap; gap: .3rem .75rem; }
.footer-legal a { color: rgba(255,255,255,.35); text-decoration: none; }
.footer-legal a:hover { color: rgba(255,255,255,.65); }

.footer-disclosure {
  font-size: .75rem;
  color: rgba(255,255,255,.25);
  line-height: 1.55;
  border-top: 1px solid rgba(255,255,255,.05);
  padding-top: 1rem;
  margin-top: .5rem;
}

/* ── 29. STICKY CALL BAR (MOBILE) ───────────────────────── */
.sticky-call-bar {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 800;
  background: var(--clr-p700);
  border-top: 1px solid rgba(6,182,212,.2);
  display: flex;
  gap: .5rem;
  align-items: center;
  padding: .75rem var(--container-pad);
  padding-bottom: calc(.75rem + env(safe-area-inset-bottom));
  box-shadow: 0 -4px 24px rgba(0,0,0,.3);
}

.sticky-call-bar .btn { flex: 1; justify-content: center; padding: .875rem 1rem; }
.sticky-call-bar .btn-primary { flex: 2; }

.sticky-call-label {
  font-family: var(--font-heading);
  font-size: .625rem;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: rgba(255,255,255,.45);
  text-align: center;
  display: block;
  margin-bottom: .2rem;
  line-height: 1;
}

/* ── 30. SCROLL ANIMATIONS ──────────────────────────────── */
.fade-up {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity .55s var(--ease), transform .55s var(--ease);
}
.fade-up.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.fade-in {
  opacity: 0;
  transition: opacity .55s var(--ease);
}
.fade-in.is-visible { opacity: 1; }

.stagger > * { transition-delay: calc(var(--i, 0) * 80ms); }

/* ── 31. NOTICE BANNER ──────────────────────────────────── */
.notice-banner {
  background: rgba(6,182,212,.1);
  border-bottom: 1px solid rgba(6,182,212,.2);
  padding: .5rem var(--container-pad);
  text-align: center;
  font-family: var(--font-heading);
  font-size: var(--fs-xs);
  font-weight: 700;
  color: var(--clr-p700);
  letter-spacing: .02em;
}
.notice-banner a {
  color: var(--clr-accent-dark);
  text-decoration: none;
  font-weight: 800;
}
.section-dark .notice-banner {
  background: rgba(6,182,212,.12);
  color: rgba(255,255,255,.8);
}

/* ── 32. STAT ROW ───────────────────────────────────────── */
.stat-row {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: var(--clr-border);
  border: 1px solid var(--clr-border);
  border-radius: var(--r-card);
  overflow: hidden;
}
.stat-cell {
  background: #fff;
  padding: 1.5rem;
  text-align: center;
}
.stat-num {
  font-family: var(--font-heading);
  font-size: 2.25rem;
  font-weight: 800;
  color: var(--clr-p700);
  line-height: 1;
  margin-bottom: .2rem;
}
.stat-num em {
  font-style: normal;
  color: var(--clr-accent);
}
.stat-desc {
  font-size: var(--fs-xs);
  color: var(--clr-muted);
  font-weight: 600;
  letter-spacing: .04em;
  text-transform: uppercase;
}

/* ── 33. DARK STAT ROW ──────────────────────────────────── */
.stat-row-dark {
  background: rgba(255,255,255,.04);
}
.stat-row-dark .stat-cell {
  background: rgba(255,255,255,.04);
}
.stat-row-dark .stat-num { color: #fff; }
.stat-row-dark .stat-desc { color: rgba(255,255,255,.5); }

/* ── 34. CONTACT FORM ───────────────────────────────────── */
.form-group {
  display: flex;
  flex-direction: column;
  gap: .4rem;
}
.form-group label {
  font-family: var(--font-heading);
  font-size: var(--fs-xs);
  font-weight: 700;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--clr-muted);
}
.form-group input,
.form-group select,
.form-group textarea {
  border: 1.5px solid var(--clr-border);
  border-radius: var(--r-card-sm);
  padding: .875rem 1rem;
  font-size: var(--fs-sm);
  color: var(--clr-dark);
  background: #fff;
  transition: border-color var(--dur), box-shadow var(--dur);
  width: 100%;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--clr-accent);
  box-shadow: 0 0 0 3px rgba(6,182,212,.12);
  outline: none;
}
.form-group textarea { resize: vertical; min-height: 120px; }

.form-grid { display: grid; gap: 1rem; }

/* ── 35. RESPONSIVE ─────────────────────────────────────── */
@media (min-width: 480px) {
  .hero-glass-row { grid-template-columns: repeat(4, 1fr); }
  .stat-row { grid-template-columns: repeat(4, 1fr); }
}

@media (min-width: 640px) {
  .bento-grid { grid-template-columns: repeat(2, 1fr); }
  .areas-grid  { grid-template-columns: repeat(3, 1fr); }
  .reviews-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: repeat(2, 1fr); }
  .form-grid { grid-template-columns: repeat(2, 1fr); }
  .process-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 768px) {
  .sticky-call-bar { display: none; }
  .site-footer { padding-bottom: var(--sp-lg); }

  .split { grid-template-columns: 1fr 1fr; }
  .split-reverse .split-img { order: 2; }
  .split-reverse .split-content { order: 1; }

  .inner-layout { grid-template-columns: 1fr 320px; }
  .inner-sidebar { display: flex; flex-direction: column; gap: 1.5rem; }
  .toc-sidebar { display: block; }
  .call-card { display: block; }

  .footer-grid { grid-template-columns: 2fr 1fr 1fr 1fr; }
}

@media (min-width: 1024px) {
  .nav-links { display: flex; }
  .nav-cta   { display: flex; }
  .hamburger { display: none; }

  .bento-grid { grid-template-columns: repeat(3, 1fr); }
  .areas-grid { grid-template-columns: repeat(4, 1fr); }
  .reviews-grid { grid-template-columns: repeat(3, 1fr); }
  .process-grid { grid-template-columns: repeat(4, 1fr); }
  .hero-glass-row { grid-template-columns: repeat(4, 1fr); }
}

@media (min-width: 1280px) {
  .bento-grid { grid-template-columns: repeat(4, 1fr); }
}

/* ── 36. REDUCED MOTION ─────────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
    scroll-behavior: auto !important;
  }
  .fade-up, .fade-in {
    opacity: 1;
    transform: none;
  }
  .hero-bg-img { transition: none; }
}

/* ── 37. PRINT ──────────────────────────────────────────── */
@media print {
  .site-nav, .sticky-call-bar, .mobile-menu, .hamburger { display: none !important; }
  body { font-size: 12pt; color: #000; background: #fff; }
  h1, h2, h3 { color: #000; }
  a { color: #000; }
  .hero { min-height: auto; padding: 2rem 0; }
  .hero-bg { display: none; }
  .cta-band { background: none; border-top: 2px solid #000; }
}