/* ==========================================================================
   PRIVACYPLUS TECH - ELEVATED PASTEL DESIGN SYSTEM
   Style: Ultra-smooth, human-crafted, calming pastel aesthetics
   Target Audience: Adults 45+, Seniors, Families valuing trust, patience & warmth
   Aesthetic: Soft porcelain/sky tints, velvety shadows, gentle organic borders, 18px+ font
   Compliance: Strict Google Ads Third-Party Policy & WCAG 2.1 AAA Contrast
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. Design Tokens & Pastel Palette
   -------------------------------------------------------------------------- */
:root {
  /* Soft, Calming Pastel Canvases */
  --bg-canvas: #f8fafd;             /* Silky, airy sky-tinted porcelain */
  --bg-canvas-warm: #faf7f2;        /* Warm comforting oatmeal/cream */
  --bg-surface: #ffffff;            /* Crisp clean card surface */
  --bg-surface-glass: rgba(255, 255, 255, 0.85);

  /* Curated Pastel Accents (Gentle on the eyes, zero harsh neon) */
  --pastel-blue-bg: #edf5fc;        /* Serene sky wash */
  --pastel-blue-border: #cfe3f7;
  --pastel-blue-text: #195282;

  --pastel-sage-bg: #eef7f2;        /* Restful restorative sage mint */
  --pastel-sage-border: #c3e6d3;
  --pastel-sage-text: #155734;

  --pastel-warm-bg: #fdf6ec;        /* Honey-buttercream highlight */
  --pastel-warm-border: #fadcb5;
  --pastel-warm-text: #82410e;

  --pastel-lavender-bg: #f3f0fb;    /* Soft periwinkle wash */
  --pastel-lavender-border: #dcd4f5;
  --pastel-lavender-text: #4c3791;

  /* Ink & Typography Colors (High-Contrast Slate) */
  --ink-primary: #0f1f38;           /* Deep authoritative slate-navy */
  --ink-secondary: #33475b;         /* Readable, soft charcoal body */
  --ink-muted: #5c6f84;             /* Muted guidance text (WCAG AAA compliant) */
  --ink-light: #8da0b5;             /* Subtle captions */

  /* Emotional CTA & Accent Colors */
  --accent-cta: #c94a20;            /* Warm terracotta coral (inviting, prominent) */
  --accent-cta-hover: #b03c14;      /* Deepened coral on hover */
  --accent-cta-glow: rgba(201, 74, 32, 0.28);
  --accent-green: #15803d;          /* Trustworthy security green */
  --accent-green-glow: rgba(22, 163, 74, 0.25);

  /* Subtle Borders & Dividers */
  --border-subtle: rgba(148, 163, 184, 0.25);
  --border-card: #e5edf5;
  --border-focus: #195282;

  /* Typography Sizing & Ratios */
  --font-base: 16px;
  --font-sans: 'Plus Jakarta Sans', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --line-height: 1.65;
  --line-height-heading: 1.25;

  /* Silky, Multi-Layered Shadows (Avoids harsh AI box look) */
  --shadow-subtle: 0 2px 8px -2px rgba(15, 31, 56, 0.04), 0 1px 3px -1px rgba(15, 31, 56, 0.03);
  --shadow-card: 0 8px 24px -4px rgba(15, 31, 56, 0.06), 0 2px 6px -2px rgba(15, 31, 56, 0.03);
  --shadow-float: 0 16px 36px -8px rgba(15, 31, 56, 0.08), 0 3px 10px -2px rgba(15, 31, 56, 0.04);
  --shadow-cta: 0 8px 20px -4px var(--accent-cta-glow);

  /* Smooth Organic Geometry */
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-pill: 9999px;

  /* Max Widths */
  --max-width: 1200px;
  --max-width-narrow: 840px;
  --gutter: 1.5rem;

  /* Natural Spring Transitions */
  --ease-smooth: cubic-bezier(0.16, 1, 0.3, 1);
  --duration-fast: 0.18s;
  --duration-normal: 0.3s;
}

/* Senior Accessibility Font Zoom Overrides */
html.font-size-md { --font-base: 16px; }
html.font-size-lg { --font-base: 18px; }
html.font-size-xl { --font-base: 20px; }

/* --------------------------------------------------------------------------
   2. Reset & Universal Principles
   -------------------------------------------------------------------------- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

body {
  font-family: var(--font-sans);
  color: var(--ink-secondary);
  background-color: var(--bg-canvas);
  line-height: var(--line-height);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

a {
  color: var(--ink-primary);
  text-decoration: underline;
  text-underline-offset: 4px;
  transition: color var(--duration-fast) var(--ease-smooth);
}

a:hover {
  color: var(--accent-cta);
}

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

:focus-visible {
  outline: 3px solid var(--border-focus);
  outline-offset: 3px;
}

/* --------------------------------------------------------------------------
   3. Compliance Notice Bar (Mandatory Google & FTC Policy)
   -------------------------------------------------------------------------- */
.top-compliance-bar {
  background: #0b1a2e;
  color: #dbe4ef;
  font-size: 0.76rem;
  line-height: 1.45;
  padding: 0.4rem 1rem;
  text-align: center;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.top-compliance-bar .compliance-container {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
}

.top-compliance-bar .compliance-icon {
  width: 14px;
  height: 14px;
  fill: #93c5fd;
  flex-shrink: 0;
}

/* --------------------------------------------------------------------------
   4. Senior Assistance & Patient Call Bar
   -------------------------------------------------------------------------- */
.senior-assist-bar {
  background: linear-gradient(90deg, #fef8f0 0%, #fffbf5 100%);
  border-bottom: 1px solid #fde3c7;
  padding: 0.38rem 1rem;
  font-size: 0.85rem;
}

.senior-assist-container {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.6rem;
}

.assist-message {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  color: #7c2d12;
  font-weight: 600;
}

.assist-message .pulse-dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background-color: #16a34a;
  box-shadow: 0 0 0 3px rgba(22, 163, 74, 0.28);
  animation: pulseGentle 2.4s infinite ease-in-out;
}

@keyframes pulseGentle {
  0%, 100% { transform: scale(1); opacity: 1; }
  50% { transform: scale(1.15); opacity: 0.85; box-shadow: 0 0 0 5px rgba(22, 163, 74, 0.15); }
}

.assist-controls {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.font-resizer {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  background-color: #ffffff;
  padding: 0.25rem 0.65rem;
  border-radius: var(--radius-pill);
  border: 1px solid #fed7aa;
  box-shadow: var(--shadow-subtle);
}

.font-resizer span {
  font-size: 0.8rem;
  color: var(--ink-muted);
  font-weight: 600;
  margin-right: 0.2rem;
}

.font-btn {
  background: none;
  border: 1px solid transparent;
  padding: 0.15rem 0.5rem;
  border-radius: 6px;
  cursor: pointer;
  font-weight: 700;
  font-size: 0.88rem;
  color: var(--ink-primary);
  line-height: 1.2;
  transition: all var(--duration-fast) var(--ease-smooth);
}

.font-btn:hover {
  background-color: #fde8d0;
}

.font-btn.active {
  background-color: var(--ink-primary);
  color: #ffffff;
  border-color: var(--ink-primary);
}

.phone-quick-link {
  color: var(--accent-cta);
  text-decoration: none;
  font-weight: 800;
  font-size: 1.05rem;
  display: flex;
  align-items: center;
  gap: 0.4rem;
  transition: transform var(--duration-fast) var(--ease-smooth);
}

.phone-quick-link:hover {
  transform: translateY(-1px);
  color: var(--accent-cta-hover);
}

/* --------------------------------------------------------------------------
   5. Site Header & Glassmorphic Navigation
   -------------------------------------------------------------------------- */
.site-header {
  background: var(--bg-surface-glass);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(207, 227, 247, 0.4);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 4px 20px -2px rgba(15, 31, 56, 0.03);
}

.nav-container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0.65rem var(--gutter);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* Brand Logo with Prominent Security Lock */
.brand-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
  color: var(--ink-primary);
}

.logo-badge {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, #102a4e 0%, #1e4b85 100%);
  border-radius: 11px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #ffffff;
  box-shadow: 0 6px 14px -2px rgba(16, 42, 78, 0.25);
  flex-shrink: 0;
  transition: transform var(--duration-fast) var(--ease-smooth);
}

.brand-logo:hover .logo-badge {
  transform: scale(1.04);
}

.logo-badge svg {
  width: 22px;
  height: 22px;
  fill: currentColor;
}

.logo-text {
  display: flex;
  flex-direction: column;
}

.logo-title {
  font-size: 1.22rem;
  font-weight: 800;
  line-height: 1.1;
  color: var(--ink-primary);
  letter-spacing: -0.025em;
}

.logo-title span {
  color: #15803d;
}

.logo-tagline {
  font-size: 0.74rem;
  color: var(--ink-muted);
  font-weight: 600;
  letter-spacing: 0.01em;
}

/* Nav Links */
.main-nav {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.nav-list {
  display: flex;
  list-style: none;
  gap: 1.25rem;
  align-items: center;
}

.nav-link {
  text-decoration: none;
  color: var(--ink-secondary);
  font-weight: 600;
  font-size: 0.95rem;
  padding: 0.35rem 0.65rem;
  border-radius: var(--radius-pill);
  transition: all var(--duration-fast) var(--ease-smooth);
}

.nav-link:hover {
  background-color: var(--pastel-blue-bg);
  color: var(--ink-primary);
}

.nav-link.active {
  background-color: #eaf3fb;
  color: var(--pastel-blue-text);
  font-weight: 700;
}

.header-cta-group {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.btn-header-call {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  background: linear-gradient(135deg, var(--accent-cta) 0%, #b83a12 100%);
  color: #ffffff;
  padding: 0.55rem 1.15rem;
  border-radius: var(--radius-pill);
  text-decoration: none;
  font-weight: 700;
  font-size: 0.92rem;
  box-shadow: var(--shadow-cta);
  transition: all var(--duration-fast) var(--ease-smooth);
}

.btn-header-call:hover {
  background: linear-gradient(135deg, #d45125 0%, #a4320e 100%);
  color: #ffffff;
  transform: translateY(-2px);
  box-shadow: 0 10px 28px -4px var(--accent-cta-glow);
}

.mobile-nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--border-card);
  padding: 0.5rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  color: var(--ink-primary);
}

/* --------------------------------------------------------------------------
   6. Elevated Button System
   -------------------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.55rem;
  padding: 0.75rem 1.6rem;
  border-radius: var(--radius-pill);
  font-size: 0.98rem;
  font-weight: 700;
  text-decoration: none;
  cursor: pointer;
  border: 2px solid transparent;
  transition: all var(--duration-fast) var(--ease-smooth);
  text-align: center;
  letter-spacing: -0.01em;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent-cta) 0%, #b53810 100%);
  color: #ffffff;
  box-shadow: var(--shadow-cta);
}

.btn-primary:hover {
  background: linear-gradient(135deg, #db5427 0%, #9e2e0b 100%);
  color: #ffffff;
  transform: translateY(-2px);
  box-shadow: 0 10px 24px -4px var(--accent-cta-glow);
}

.btn-secondary {
  background-color: #ffffff;
  color: var(--ink-primary);
  border: 1.5px solid #cbd5e1;
  box-shadow: var(--shadow-subtle);
}

.btn-secondary:hover {
  background-color: var(--pastel-blue-bg);
  border-color: #93c5fd;
  color: var(--ink-primary);
  transform: translateY(-2px);
}

.btn-green {
  background: linear-gradient(135deg, #15803d 0%, #0d632e 100%);
  color: #ffffff;
  box-shadow: 0 6px 20px -3px rgba(21, 128, 61, 0.3);
}

.btn-green:hover {
  background: linear-gradient(135deg, #169346 0%, #0a4f24 100%);
  color: #ffffff;
  transform: translateY(-2px);
}

.btn-large {
  padding: 0.88rem 1.85rem;
  font-size: 1.05rem;
}

.btn-icon {
  width: 19px;
  height: 19px;
  flex-shrink: 0;
  fill: currentColor;
}

/* --------------------------------------------------------------------------
   7. Typography & Headings
   -------------------------------------------------------------------------- */
h1, h2, h3, h4, h5, h6 {
  color: var(--ink-primary);
  line-height: var(--line-height-heading);
  font-weight: 800;
  letter-spacing: -0.025em;
}

h1 {
  font-size: clamp(1.85rem, 3.2vw, 2.45rem);
  margin-bottom: 0.95rem;
}

h2 {
  font-size: clamp(1.45rem, 2.4vw, 1.85rem);
  margin-bottom: 0.8rem;
}

h3 {
  font-size: clamp(1.15rem, 1.8vw, 1.35rem);
  margin-bottom: 0.45rem;
}

h4 {
  font-size: 1.08rem;
  margin-bottom: 0.35rem;
}

p {
  margin-bottom: 1rem;
  font-size: 1rem;
  color: var(--ink-secondary);
}

p.lead {
  font-size: 1.12rem;
  line-height: 1.6;
  color: var(--ink-muted);
  max-width: 760px;
}

.text-center {
  text-align: center;
}

.text-center p.lead {
  margin-left: auto;
  margin-right: auto;
}

.text-muted {
  color: var(--ink-muted);
}

/* --------------------------------------------------------------------------
   8. Layout Containers & Smooth Pastel Sections
   -------------------------------------------------------------------------- */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

.container-narrow {
  width: 100%;
  max-width: var(--max-width-narrow);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

.section {
  padding: 3.75rem 0;
  position: relative;
}

.section-pastel-blue {
  background: linear-gradient(180deg, #edf5fd 0%, #f6fafd 100%);
  border-top: 1px solid #e1effa;
  border-bottom: 1px solid #e1effa;
}

.section-pastel-sage {
  background: linear-gradient(180deg, #edf7f2 0%, #f8fcf9 100%);
  border-top: 1px solid #d9efe3;
  border-bottom: 1px solid #d9efe3;
}

.section-pastel-warm {
  background: linear-gradient(180deg, #fef8f0 0%, #fffdfa 100%);
  border-top: 1px solid #fdecd8;
  border-bottom: 1px solid #fdecd8;
}

/* --------------------------------------------------------------------------
   9. Badges, Pills & Real Customer Seals
   -------------------------------------------------------------------------- */
.trust-badge-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  background-color: var(--pastel-sage-bg);
  border: 1.5px solid var(--pastel-sage-border);
  color: var(--pastel-sage-text);
  padding: 0.45rem 1.15rem;
  border-radius: var(--radius-pill);
  font-size: 0.96rem;
  font-weight: 700;
  margin-bottom: 1.5rem;
  box-shadow: 0 2px 6px rgba(21, 128, 61, 0.08);
}

.trust-badge-pill svg {
  width: 18px;
  height: 18px;
  fill: #16a34a;
}

.geo-alert-bar {
  background: linear-gradient(90deg, #eefbf4 0%, #f4fcf7 100%);
  border: 1.5px solid #b7ebcc;
  border-radius: var(--radius-md);
  padding: 0.65rem 1.15rem;
  margin-bottom: 1.5rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  color: #065f46;
  font-size: 0.95rem;
  box-shadow: var(--shadow-subtle);
}

.geo-alert-bar svg {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  fill: #059669;
}

/* --------------------------------------------------------------------------
   10. Hero Section Redesign (Organic, Welcoming & High-Converting)
   -------------------------------------------------------------------------- */
.hero-section {
  padding: 2.75rem 0 3.5rem;
  background: radial-gradient(circle at 85% 15%, #edf4fc 0%, #f8fafd 60%);
  position: relative;
  overflow: hidden;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 2.5rem;
  align-items: center;
}

.hero-content {
  position: relative;
  z-index: 2;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
  margin-top: 1.5rem;
  margin-bottom: 1.5rem;
}

.hero-guarantee-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 1.35rem;
  margin-top: 1.35rem;
  padding-top: 1.35rem;
  border-top: 1px solid #e2e8f0;
}

.guarantee-item {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--ink-secondary);
}

.guarantee-item svg {
  width: 18px;
  height: 18px;
  fill: var(--accent-green);
  flex-shrink: 0;
}

/* Hero Live Support Card (Right Column) */
.hero-card {
  background: #ffffff;
  border-radius: var(--radius-lg);
  padding: 1.75rem 1.65rem;
  border: 1px solid var(--border-card);
  box-shadow: var(--shadow-float);
  position: relative;
}

.hero-card-header {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  margin-bottom: 1.25rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid #f1f5f9;
}

.hero-card-avatar {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background: linear-gradient(135deg, #fed7aa 0%, #ffedd5 100%);
  border: 2px solid #ffffff;
  box-shadow: 0 4px 10px rgba(194, 65, 12, 0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #9a3412;
  font-size: 1.35rem;
  font-weight: 800;
  flex-shrink: 0;
}

.hero-card-title {
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--ink-primary);
  line-height: 1.25;
}

.hero-card-subtitle {
  font-size: 0.85rem;
  color: var(--accent-green);
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

.hero-card-subtitle .live-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background-color: var(--accent-green);
}

.hero-checklist {
  list-style: none;
  margin-bottom: 1.35rem;
}

.hero-checklist li {
  display: flex;
  align-items: flex-start;
  gap: 0.65rem;
  margin-bottom: 0.75rem;
  font-size: 0.95rem;
}

.hero-checklist svg {
  width: 18px;
  height: 18px;
  fill: var(--accent-green);
  flex-shrink: 0;
  margin-top: 3px;
}

.hero-call-box {
  background: linear-gradient(135deg, #fef8f0 0%, #fffdfa 100%);
  border: 1.5px solid #fed7aa;
  border-radius: var(--radius-md);
  padding: 1.15rem 1.25rem;
  text-align: center;
  box-shadow: var(--shadow-subtle);
}

.hero-call-box span {
  display: block;
  font-size: 0.88rem;
  color: #7c2d12;
  font-weight: 700;
  margin-bottom: 0.25rem;
}

.hero-call-number {
  font-size: 1.45rem;
  font-weight: 800;
  color: var(--accent-cta);
  text-decoration: none;
  letter-spacing: -0.02em;
  display: inline-block;
  transition: transform var(--duration-fast) var(--ease-smooth);
}

.hero-call-number:hover {
  transform: scale(1.03);
  text-decoration: underline;
}

/* --------------------------------------------------------------------------
   11. Elevated Grid Cards & Modular Features
   -------------------------------------------------------------------------- */
.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.75rem;
}

.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.25rem;
}

.card {
  background-color: var(--bg-surface);
  border-radius: var(--radius-md);
  padding: 1.75rem 1.65rem;
  border: 1px solid var(--border-card);
  box-shadow: var(--shadow-card);
  transition: transform var(--duration-fast) var(--ease-smooth), box-shadow var(--duration-fast) var(--ease-smooth), border-color var(--duration-fast) var(--ease-smooth);
  display: flex;
  flex-direction: column;
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-float);
  border-color: #cbd5e1;
}

.card-icon-box {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.25rem;
  flex-shrink: 0;
}

.card-icon-blue {
  background-color: var(--pastel-blue-bg);
  color: var(--pastel-blue-text);
  border: 1px solid var(--pastel-blue-border);
}

.card-icon-green {
  background-color: var(--pastel-sage-bg);
  color: var(--pastel-sage-text);
  border: 1px solid var(--pastel-sage-border);
}

.card-icon-warm {
  background-color: var(--pastel-warm-bg);
  color: var(--pastel-warm-text);
  border: 1px solid var(--pastel-warm-border);
}

.card-icon-box svg {
  width: 24px;
  height: 24px;
  fill: currentColor;
}

/* Service Card Pricing Badge */
.price-pill {
  display: inline-block;
  background-color: var(--pastel-blue-bg);
  color: var(--pastel-blue-text);
  font-weight: 800;
  font-size: 1.05rem;
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-sm);
  margin-bottom: 0.85rem;
  border: 1px solid var(--pastel-blue-border);
}

.card-footer {
  margin-top: auto;
  padding-top: 1.15rem;
  border-top: 1px solid #f1f5f9;
}

/* --------------------------------------------------------------------------
   12. Step-by-Step "How It Works" Section
   -------------------------------------------------------------------------- */
.steps-container {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  position: relative;
  margin-top: 2.25rem;
}

.step-card {
  background-color: #ffffff;
  border-radius: var(--radius-md);
  padding: 1.65rem 1.5rem;
  border: 1px solid var(--border-card);
  box-shadow: var(--shadow-card);
  position: relative;
  transition: transform var(--duration-fast) var(--ease-smooth);
}

.step-card:hover {
  transform: translateY(-3px);
}

.step-number {
  position: absolute;
  top: -16px;
  left: 20px;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: linear-gradient(135deg, #102a4e 0%, #1e4b85 100%);
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.15rem;
  font-weight: 800;
  box-shadow: 0 4px 10px rgba(16, 42, 78, 0.25);
}

.step-card h3 {
  margin-top: 0.65rem;
  font-size: 1.15rem;
}

/* --------------------------------------------------------------------------
   13. Antivirus Comparison & Reseller Clarity Table
   -------------------------------------------------------------------------- */
.comparison-wrapper {
  background-color: #ffffff;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-card);
  box-shadow: var(--shadow-card);
  overflow: hidden;
  margin-top: 2rem;
}

.comparison-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
}

.comparison-table th, .comparison-table td {
  padding: 0.95rem 1.25rem;
  border-bottom: 1px solid #f1f5f9;
  font-size: 0.95rem;
}

.comparison-table th {
  background-color: var(--pastel-blue-bg);
  color: var(--ink-primary);
  font-weight: 800;
}

.comparison-table tr:hover td {
  background-color: #fbfdff;
}

.table-brand-tag {
  font-size: 0.82rem;
  padding: 0.2rem 0.55rem;
  border-radius: var(--radius-sm);
  background-color: #f1f5f9;
  color: var(--ink-secondary);
  font-weight: 700;
  display: inline-block;
  margin-top: 0.25rem;
}

/* --------------------------------------------------------------------------
   14. Human Story / Why Choose Us Callout
   -------------------------------------------------------------------------- */
.story-box {
  background: linear-gradient(135deg, #edf7f2 0%, #ffffff 100%);
  border-radius: var(--radius-lg);
  padding: 2.25rem 2rem;
  border: 1.5px solid var(--pastel-sage-border);
  margin: 2.5rem 0;
  box-shadow: var(--shadow-card);
}

.quote-badge {
  color: #16a34a;
  font-size: 2.5rem;
  line-height: 1;
  font-family: Georgia, serif;
}

.story-text {
  font-size: 1.08rem;
  line-height: 1.68;
  color: var(--ink-primary);
  font-style: italic;
  margin-bottom: 1.35rem;
}

.story-author {
  display: flex;
  align-items: center;
  gap: 0.85rem;
}

.author-pic {
  width: 46px;
  height: 46px;
  border-radius: 50%;
  background-color: #d1fae5;
  color: #065f46;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 1.15rem;
}

/* --------------------------------------------------------------------------
   15. Accessible FAQ Accordions (AEO / GEO Synced)
   -------------------------------------------------------------------------- */
.faq-list {
  max-width: var(--max-width-narrow);
  margin: 2rem auto 0;
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.faq-item {
  background-color: #ffffff;
  border: 1px solid var(--border-card);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-subtle);
  overflow: hidden;
  transition: all var(--duration-fast) var(--ease-smooth);
}

.faq-item.active {
  border-color: #93c5fd;
  box-shadow: var(--shadow-card);
}

.faq-trigger {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.15rem 1.35rem;
  background: none;
  border: none;
  cursor: pointer;
  text-align: left;
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--ink-primary);
  gap: 1rem;
  transition: background-color var(--duration-fast) var(--ease-smooth);
}

.faq-trigger:hover {
  background-color: var(--pastel-blue-bg);
}

.faq-icon {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  transition: transform 0.28s cubic-bezier(0.2, 0.8, 0.2, 1);
  fill: var(--ink-primary);
}

.faq-item.active .faq-icon {
  transform: rotate(180deg);
  fill: var(--accent-cta);
}

.faq-content {
  display: none;
  padding: 0 1.35rem 1.25rem 1.35rem;
  font-size: 0.96rem;
  color: var(--ink-secondary);
  line-height: 1.68;
  border-top: 1px solid #f8fafc;
}

.faq-item.active .faq-content {
  display: block;
  animation: fadeIn 0.28s ease;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(-6px); }
  to { opacity: 1; transform: translateY(0); }
}

/* --------------------------------------------------------------------------
   16. Forms (Callback & Support Requests)
   -------------------------------------------------------------------------- */
.form-card {
  background-color: #ffffff;
  border-radius: var(--radius-lg);
  padding: 2.25rem 2rem;
  border: 1px solid var(--border-card);
  box-shadow: var(--shadow-float);
}

.form-group {
  margin-bottom: 1.25rem;
}

.form-label {
  display: block;
  font-weight: 700;
  margin-bottom: 0.35rem;
  color: var(--ink-primary);
  font-size: 0.96rem;
}

.form-hint {
  font-size: 0.82rem;
  color: var(--ink-muted);
  margin-bottom: 0.35rem;
  display: block;
}

.form-input, .form-select, .form-textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  border-radius: var(--radius-sm);
  border: 1.5px solid #cbd5e1;
  background-color: #ffffff;
  color: var(--ink-primary);
  font-size: 0.98rem;
  transition: border-color var(--duration-fast) var(--ease-smooth), box-shadow var(--duration-fast) var(--ease-smooth);
}

.form-input:focus, .form-select:focus, .form-textarea:focus {
  border-color: var(--ink-primary);
  outline: none;
  box-shadow: 0 0 0 3px rgba(15, 31, 56, 0.1);
}

.form-textarea {
  min-height: 110px;
  resize: vertical;
}

.form-checkbox-label {
  display: flex;
  align-items: flex-start;
  gap: 0.85rem;
  cursor: pointer;
  font-size: 0.98rem;
  line-height: 1.55;
  color: var(--ink-muted);
}

.form-checkbox-label input[type="checkbox"] {
  width: 22px;
  height: 22px;
  margin-top: 3px;
  flex-shrink: 0;
  accent-color: var(--ink-primary);
}

.form-alert {
  padding: 1.15rem 1.35rem;
  border-radius: var(--radius-sm);
  margin-bottom: 1.75rem;
  display: none;
  font-size: 1.05rem;
}

.form-alert.success {
  display: block;
  background-color: #d1fae5;
  border: 1px solid #6ee7b7;
  color: #065f46;
}

.form-alert.error {
  display: block;
  background-color: #fee2e2;
  border: 1px solid #fca5a5;
  color: #991b1b;
}

/* --------------------------------------------------------------------------
   17. Call-to-Action Bottom Banner
   -------------------------------------------------------------------------- */
.cta-banner {
  background: linear-gradient(135deg, #102a4e 0%, #0b1a2e 100%);
  color: #ffffff;
  border-radius: var(--radius-lg);
  padding: 2.75rem 2.25rem;
  text-align: center;
  box-shadow: var(--shadow-float);
  position: relative;
  overflow: hidden;
}

.cta-banner h2 {
  color: #ffffff;
  margin-bottom: 0.85rem;
  font-size: clamp(1.4rem, 2.4vw, 1.8rem);
}

.cta-banner p {
  color: #cbd5e1;
  font-size: 1.08rem;
  max-width: 680px;
  margin: 0 auto 1.75rem;
}

.cta-button-cluster {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: 1rem;
}

/* --------------------------------------------------------------------------
   18. Legal Content & Policy Styling
   -------------------------------------------------------------------------- */
.legal-content {
  background-color: #ffffff;
  border-radius: var(--radius-md);
  padding: 2.5rem 2.25rem;
  border: 1px solid var(--border-card);
  box-shadow: var(--shadow-card);
  font-size: 1rem;
  line-height: 1.75;
}

.legal-content h2 {
  margin-top: 1.75rem;
  padding-top: 1.35rem;
  border-top: 1px solid #f1f5f9;
}

.legal-content ul, .legal-content ol {
  margin-left: 1.75rem;
  margin-bottom: 1.25rem;
}

.legal-content li {
  margin-bottom: 0.5rem;
}

.legal-highlight-box {
  background: linear-gradient(135deg, #fef8f0 0%, #fffbf5 100%);
  border-left: 4px solid #f97316;
  padding: 1.15rem 1.35rem;
  margin: 1.5rem 0;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-size: 0.98rem;
  color: #7c2d12;
}

/* --------------------------------------------------------------------------
   19. Site Footer & Compliance Card
   -------------------------------------------------------------------------- */
.site-footer {
  background-color: #0b1a2e;
  color: #cbd5e1;
  padding: 3.5rem 0 1.75rem;
  margin-top: auto;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.3fr;
  gap: 2.25rem;
  margin-bottom: 2.5rem;
}

.footer-brand .brand-logo {
  color: #ffffff;
  margin-bottom: 1.15rem;
}

.footer-brand p {
  color: #94a3b8;
  font-size: 0.98rem;
  line-height: 1.65;
}

.footer-col h4 {
  color: #ffffff;
  font-size: 1.18rem;
  margin-bottom: 1.35rem;
  font-weight: 700;
}

.footer-links {
  list-style: none;
}

.footer-links li {
  margin-bottom: 0.85rem;
}

.footer-links a {
  color: #94a3b8;
  text-decoration: none;
  font-size: 1rem;
  transition: color var(--duration-fast) var(--ease-smooth);
}

.footer-links a:hover {
  color: #ffffff;
  text-decoration: underline;
}

.footer-contact-info {
  list-style: none;
  font-size: 0.98rem;
  color: #94a3b8;
}

.footer-contact-info li {
  margin-bottom: 1rem;
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
}

.footer-contact-info svg {
  width: 20px;
  height: 20px;
  fill: #38bdf8;
  flex-shrink: 0;
  margin-top: 3px;
}

.footer-contact-info a {
  color: #38bdf8;
  text-decoration: none;
  font-weight: 700;
}

.footer-contact-info a:hover {
  text-decoration: underline;
}

.footer-disclaimer-card {
  background-color: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-md);
  padding: 2rem 2.25rem;
  margin-bottom: 3rem;
}

.footer-disclaimer-card h5 {
  color: #f1f5f9;
  font-size: 1.05rem;
  margin-bottom: 0.75rem;
  display: flex;
  align-items: center;
  gap: 0.55rem;
}

.footer-disclaimer-card h5 svg {
  width: 20px;
  height: 20px;
  fill: #fbbf24;
}

.footer-disclaimer-card p {
  color: #94a3b8;
  font-size: 0.9rem;
  line-height: 1.65;
  margin-bottom: 0.6rem;
}

.footer-bottom {
  padding-top: 2.25rem;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 1.25rem;
  font-size: 0.92rem;
  color: #64748b;
}

.footer-bottom-links {
  display: flex;
  gap: 1.75rem;
  list-style: none;
}

.footer-bottom-links a {
  color: #94a3b8;
  text-decoration: none;
}

.footer-bottom-links a:hover {
  color: #ffffff;
  text-decoration: underline;
}

/* --------------------------------------------------------------------------
   19.5. Interactive Symptom Selector & Social Proof Ribbon
   -------------------------------------------------------------------------- */
.hero-social-proof {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-top: 1.75rem;
  font-size: 0.95rem;
  color: var(--ink-muted);
  font-weight: 600;
  flex-wrap: wrap;
}

.hero-social-proof .stars-row {
  color: #f59e0b;
  font-size: 1.2rem;
  letter-spacing: 2px;
}

.symptom-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.25rem;
  margin-top: 1.75rem;
}

.symptom-card {
  background: #ffffff;
  border-radius: var(--radius-md);
  padding: 1.5rem 1.35rem;
  border: 1.5px solid var(--border-card);
  box-shadow: var(--shadow-card);
  transition: all var(--duration-fast) var(--ease-smooth);
  display: flex;
  flex-direction: column;
}

.symptom-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-float);
  border-color: #93c5fd;
}

.symptom-header {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 0.75rem;
}

.symptom-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: 10px;
  font-size: 1.2rem;
  flex-shrink: 0;
}

.symptom-badge-amber {
  background-color: var(--pastel-warm-bg);
  border: 1px solid var(--pastel-warm-border);
}

.symptom-badge-blue {
  background-color: var(--pastel-blue-bg);
  border: 1px solid var(--pastel-blue-border);
}

.symptom-badge-green {
  background-color: var(--pastel-sage-bg);
  border: 1px solid var(--pastel-sage-border);
}

.symptom-badge-lavender {
  background-color: var(--pastel-lavender-bg);
  border: 1px solid var(--pastel-lavender-border);
}

.symptom-card h3 {
  font-size: 1.12rem;
  margin-bottom: 0;
  line-height: 1.3;
}

.symptom-card p {
  font-size: 0.94rem;
  color: var(--ink-secondary);
  line-height: 1.55;
  margin-bottom: 1rem;
}

.symptom-footer {
  margin-top: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 0.85rem;
  border-top: 1px solid #f1f5f9;
}

.symptom-price {
  font-weight: 800;
  font-size: 1.02rem;
  color: var(--ink-primary);
}

.symptom-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--accent-cta);
  text-decoration: none;
  padding: 0.35rem 0.85rem;
  border-radius: var(--radius-pill);
  background-color: #fff7ed;
  border: 1px solid #fed7aa;
  transition: all var(--duration-fast) var(--ease-smooth);
}

.symptom-btn:hover {
  background-color: #ffedd5;
  transform: translateX(3px);
}

/* --------------------------------------------------------------------------
   19.6. Enriched Pastel Card Variants & Tactile Badges
   -------------------------------------------------------------------------- */
.card-pastel-sage {
  background: linear-gradient(145deg, #f4faf6 0%, #ffffff 100%);
  border: 1.5px solid var(--pastel-sage-border);
}
.card-pastel-sage:hover {
  border-color: #86efac;
  box-shadow: 0 14px 34px -6px rgba(21, 128, 61, 0.12);
}

.card-pastel-blue {
  background: linear-gradient(145deg, #f3f8fd 0%, #ffffff 100%);
  border: 1.5px solid var(--pastel-blue-border);
}
.card-pastel-blue:hover {
  border-color: #93c5fd;
  box-shadow: 0 14px 34px -6px rgba(25, 82, 130, 0.12);
}

.card-pastel-warm {
  background: linear-gradient(145deg, #fef8f0 0%, #ffffff 100%);
  border: 1.5px solid var(--pastel-warm-border);
}
.card-pastel-warm:hover {
  border-color: #fdba74;
  box-shadow: 0 14px 34px -6px rgba(194, 65, 12, 0.12);
}

.card-pastel-lavender {
  background: linear-gradient(145deg, #f6f3fc 0%, #ffffff 100%);
  border: 1.5px solid var(--pastel-lavender-border);
}
.card-pastel-lavender:hover {
  border-color: #c4b5fd;
  box-shadow: 0 14px 34px -6px rgba(109, 40, 217, 0.12);
}

/* Badges for Services & Testimonials */
.badge-senior-favorite {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  background-color: #fef3c7;
  color: #92400e;
  border: 1px solid #fde68a;
  font-size: 0.82rem;
  font-weight: 700;
  padding: 0.2rem 0.75rem;
  border-radius: var(--radius-pill);
  text-transform: uppercase;
  letter-spacing: 0.03em;
  margin-bottom: 0.75rem;
}

.badge-staff-pick {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  background-color: #d1fae5;
  color: #065f46;
  border: 1px solid #a7f3d0;
  font-size: 0.82rem;
  font-weight: 700;
  padding: 0.2rem 0.75rem;
  border-radius: var(--radius-pill);
  text-transform: uppercase;
  letter-spacing: 0.03em;
  margin-bottom: 0.75rem;
}

.badge-immediate-relief {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  background-color: #e0f2fe;
  color: #075985;
  border: 1px solid #bae6fd;
  font-size: 0.82rem;
  font-weight: 700;
  padding: 0.2rem 0.75rem;
  border-radius: var(--radius-pill);
  text-transform: uppercase;
  letter-spacing: 0.03em;
  margin-bottom: 0.75rem;
}

/* --------------------------------------------------------------------------
   19.7. Service Filter Tabs (Interactive on services.html)
   -------------------------------------------------------------------------- */
.service-filter-wrapper {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.75rem;
  margin-bottom: 3rem;
}

.filter-pill-btn {
  background-color: #ffffff;
  border: 1.5px solid var(--border-card);
  color: var(--ink-secondary);
  font-size: 1rem;
  font-weight: 700;
  padding: 0.65rem 1.35rem;
  border-radius: var(--radius-pill);
  cursor: pointer;
  transition: all var(--duration-fast) var(--ease-smooth);
  box-shadow: var(--shadow-subtle);
}

.filter-pill-btn:hover {
  background-color: var(--pastel-blue-bg);
  color: var(--ink-primary);
  border-color: #93c5fd;
  transform: translateY(-2px);
}

.filter-pill-btn.active {
  background-color: var(--ink-primary);
  color: #ffffff;
  border-color: var(--ink-primary);
  box-shadow: 0 4px 14px rgba(15, 31, 56, 0.2);
}

/* --------------------------------------------------------------------------
   19.8. Human Story Timeline (for about.html)
   -------------------------------------------------------------------------- */
.story-timeline {
  display: flex;
  flex-direction: column;
  gap: 2rem;
  position: relative;
  margin: 3rem 0;
}

.story-timeline::before {
  content: '';
  position: absolute;
  top: 15px;
  bottom: 15px;
  left: 28px;
  width: 3px;
  background: linear-gradient(180deg, #93c5fd 0%, #86efac 50%, #fed7aa 100%);
  border-radius: 999px;
}

.timeline-step {
  display: flex;
  gap: 2rem;
  align-items: flex-start;
  position: relative;
}

.timeline-bullet {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: #ffffff;
  border: 3px solid #38bdf8;
  box-shadow: 0 4px 14px rgba(56, 189, 248, 0.25);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--ink-primary);
  flex-shrink: 0;
  z-index: 2;
}

.timeline-bullet-sage {
  border-color: #22c55e;
  box-shadow: 0 4px 14px rgba(34, 197, 94, 0.25);
}

.timeline-bullet-warm {
  border-color: #f97316;
  box-shadow: 0 4px 14px rgba(249, 115, 22, 0.25);
}

.timeline-bullet-lavender {
  border-color: #8b5cf6;
  box-shadow: 0 4px 14px rgba(139, 92, 246, 0.25);
}

.timeline-box {
  background: #ffffff;
  border-radius: var(--radius-md);
  padding: 1.75rem 2rem;
  border: 1.5px solid var(--border-card);
  box-shadow: var(--shadow-card);
  flex-grow: 1;
}

.timeline-box h3 {
  font-size: 1.3rem;
  margin-bottom: 0.5rem;
}

.timeline-year-tag {
  display: inline-block;
  font-size: 0.82rem;
  font-weight: 800;
  color: var(--accent-cta);
  background-color: #fff7ed;
  border: 1px solid #ffedd5;
  padding: 0.15rem 0.65rem;
  border-radius: var(--radius-pill);
  margin-bottom: 0.65rem;
}

/* Founder Patient Care Pledge Box */
.founder-pledge-card {
  background: linear-gradient(135deg, #fef8f0 0%, #fffdf9 100%);
  border: 2px solid #fed7aa;
  border-radius: var(--radius-lg);
  padding: 3rem 2.5rem;
  margin: 3.5rem 0;
  box-shadow: var(--shadow-card);
  position: relative;
  overflow: hidden;
}

.founder-pledge-card::after {
  content: 'GUARANTEE';
  position: absolute;
  right: -20px;
  bottom: -25px;
  font-size: 5rem;
  font-weight: 900;
  color: rgba(194, 65, 12, 0.04);
  letter-spacing: 5px;
  pointer-events: none;
}

.pledge-header {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  margin-bottom: 1.5rem;
}

.pledge-seal {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 6px 16px rgba(217, 119, 6, 0.3);
  flex-shrink: 0;
}

.pledge-seal svg {
  width: 34px;
  height: 34px;
  fill: currentColor;
}

/* --------------------------------------------------------------------------
   19.9. "What to Expect When You Call" Process Grid (contact.html)
   -------------------------------------------------------------------------- */
.call-process-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.75rem;
  margin: 2.5rem 0 3.5rem;
}

.call-step-card {
  background: #ffffff;
  border-radius: var(--radius-md);
  padding: 2rem 1.75rem;
  border: 1.5px solid var(--border-card);
  box-shadow: var(--shadow-card);
  position: relative;
  text-align: center;
}

.call-step-card .step-badge-num {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--pastel-blue-bg);
  border: 1.5px solid var(--pastel-blue-border);
  color: var(--pastel-blue-text);
  font-weight: 800;
  font-size: 1.2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1.25rem;
}

.call-step-card h3 {
  font-size: 1.18rem;
  margin-bottom: 0.65rem;
}

.call-step-card p {
  font-size: 0.98rem;
  color: var(--ink-secondary);
  line-height: 1.6;
  margin-bottom: 0;
}

/* --------------------------------------------------------------------------
   19.10. Smooth Floating Back to Top Button
   -------------------------------------------------------------------------- */
.back-to-top-btn {
  position: fixed;
  bottom: 24px;
  right: 24px;
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: #ffffff;
  border: 1.5px solid #cbd5e1;
  color: var(--ink-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 8px 24px rgba(15, 31, 56, 0.12);
  cursor: pointer;
  z-index: 99;
  opacity: 0;
  visibility: hidden;
  transform: translateY(15px);
  transition: all var(--duration-fast) var(--ease-smooth);
}

.back-to-top-btn.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.back-to-top-btn:hover {
  background-color: var(--ink-primary);
  color: #ffffff;
  border-color: var(--ink-primary);
  transform: translateY(-3px);
  box-shadow: 0 12px 28px rgba(15, 31, 56, 0.2);
}

.back-to-top-btn svg {
  width: 24px;
  height: 24px;
  fill: currentColor;
}

/* --------------------------------------------------------------------------
   20. Responsive Layout
   -------------------------------------------------------------------------- */
@media (max-width: 992px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 3rem;
  }

  .symptom-grid {
    grid-template-columns: 1fr;
  }

  .grid-3 {
    grid-template-columns: repeat(2, 1fr);
  }

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

  .steps-container {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  :root {
    --font-base: 17px;
    --gutter: 1.25rem;
  }

  .section {
    padding: 3.75rem 0;
  }

  .senior-assist-container {
    flex-direction: column;
    align-items: flex-start;
  }

  .assist-controls {
    width: 100%;
    justify-content: space-between;
  }

  .mobile-nav-toggle {
    display: block;
  }

  .main-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: #ffffff;
    padding: 1.75rem;
    border-bottom: 2px solid var(--border-card);
    box-shadow: var(--shadow-float);
  }

  .main-nav.open {
    display: block;
  }

  .nav-list {
    flex-direction: column;
    align-items: flex-start;
    gap: 1.15rem;
    margin-bottom: 1.5rem;
  }

  .header-cta-group {
    flex-direction: column;
    width: 100%;
  }

  .header-cta-group .btn-header-call {
    width: 100%;
    justify-content: center;
  }

  .grid-3, .grid-2, .grid-4 {
    grid-template-columns: 1fr;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 2.25rem;
  }

  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
  }

  .hero-card {
    padding: 1.75rem;
  }

  .form-card {
    padding: 2rem 1.5rem;
  }
}