/* Beatio Pulse™ Commercial Website Design System */
/* Clinical Light Mode (Apple Healthcare meets Diagnostic Precision) */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=JetBrains+Mono:wght@400;500;600;700&family=Outfit:wght@400;500;600;700;800&display=swap');

:root {
  --bg-primary: #FFFFFF;
  --bg-secondary: #F8FAFC;
  --bg-tertiary: #F1F5F9;
  --surface-card: #FFFFFF;
  --surface-card-hover: #FAFAFA;
  
  --color-text-primary: #000000;
  --color-text-secondary: #0F172A;
  --color-text-muted: #64748B;
  --color-text-faint: #94A3B8;

  --color-pulse-red: #EF4444;
  --color-pulse-red-dark: #DC2626;
  --color-pulse-red-light: rgba(239, 68, 68, 0.08);
  --color-pulse-red-border: rgba(239, 68, 68, 0.25);

  --color-emerald: #10B981;
  --color-emerald-dark: #059669;
  --color-emerald-light: rgba(16, 185, 129, 0.08);

  --color-cyan: #0284C7;
  --color-cyan-light: rgba(2, 132, 199, 0.08);

  --border-subtle: #E2E8F0;
  --border-medium: #CBD5E1;
  --border-focus: #94A3B8;

  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.04);
  --shadow-md: 0 4px 6px -1px rgba(15, 23, 42, 0.05), 0 2px 4px -2px rgba(15, 23, 42, 0.05);
  --shadow-lg: 0 10px 25px -5px rgba(15, 23, 42, 0.06), 0 8px 10px -6px rgba(15, 23, 42, 0.04);
  --shadow-xl: 0 20px 35px -10px rgba(15, 23, 42, 0.08);

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  --font-display: 'Outfit', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  --max-width: 1280px;
}

/* Reset & Base */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  color-scheme: light;
}

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

/* Faint medical background pattern */
.medical-grid-bg {
  background-image: 
    linear-gradient(to right, rgba(226, 232, 240, 0.6) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(226, 232, 240, 0.6) 1px, transparent 1px);
  background-size: 32px 32px;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  color: var(--color-text-primary);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
}

h1 {
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 800;
}

h2 {
  font-size: clamp(2rem, 3.5vw, 2.75rem);
  margin-bottom: 1rem;
}

h3 {
  font-size: 1.5rem;
  font-weight: 700;
}

p {
  color: var(--color-text-muted);
  font-size: 1.0625rem;
  line-height: 1.65;
}

a {
  color: inherit;
  text-decoration: none;
  transition: all 0.2s ease;
}

/* Container */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: 2rem;
  padding-right: 2rem;
}

/* Badges & Tags */
.badge-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 0.35rem 0.85rem;
  border-radius: var(--radius-full);
  background: var(--color-pulse-red-light);
  color: var(--color-pulse-red-dark);
  border: 1px solid var(--color-pulse-red-border);
  margin-bottom: 1.25rem;
}

.badge-eyebrow.badge-emerald {
  background: var(--color-emerald-light);
  color: var(--color-emerald-dark);
  border-color: rgba(16, 185, 129, 0.25);
}

.badge-eyebrow.badge-cyan {
  background: var(--color-cyan-light);
  color: var(--color-cyan);
  border-color: rgba(2, 132, 199, 0.25);
}

.pulse-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: currentColor;
  animation: pulseGlow 2s infinite;
}

@keyframes pulseGlow {
  0% { transform: scale(0.95); opacity: 0.8; box-shadow: 0 0 0 0 rgba(239, 68, 68, 0.7); }
  70% { transform: scale(1.1); opacity: 1; box-shadow: 0 0 0 6px rgba(239, 68, 68, 0); }
  100% { transform: scale(0.95); opacity: 0.8; box-shadow: 0 0 0 0 rgba(239, 68, 68, 0); }
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-family: var(--font-body);
  font-size: 0.9375rem;
  font-weight: 600;
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  border: 1px solid transparent;
}

.btn-primary {
  background-color: var(--color-pulse-red);
  color: #FFFFFF;
  box-shadow: 0 4px 14px rgba(239, 68, 68, 0.3);
}

.btn-primary:hover {
  background-color: var(--color-pulse-red-dark);
  box-shadow: 0 6px 20px rgba(239, 68, 68, 0.4);
  transform: translateY(-1px);
}

.btn-secondary {
  background-color: #FFFFFF;
  color: var(--color-text-secondary);
  border: 1px solid var(--border-medium);
  box-shadow: var(--shadow-sm);
}

.btn-secondary:hover {
  background-color: var(--bg-secondary);
  border-color: var(--color-text-secondary);
  transform: translateY(-1px);
}

.btn-lg {
  padding: 0.95rem 2rem;
  font-size: 1rem;
}

/* Sticky Header & Navigation */
.header-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-subtle);
  transition: all 0.3s ease;
}

.header-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 74px;
}

.brand-link {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.brand-logo-img {
  height: 38px;
  width: auto;
  object-fit: contain;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 1.75rem;
  list-style: none;
}

.nav-link {
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--color-text-muted);
}

.nav-link:hover {
  color: var(--color-text-primary);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.mobile-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
  color: var(--color-text-secondary);
}

/* Section Shared Styling */
.section {
  padding: 6.5rem 0;
  position: relative;
}

.section-alt {
  background-color: var(--bg-secondary);
  border-top: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
}

.section-header {
  text-align: center;
  max-width: 760px;
  margin: 0 auto 4rem auto;
}

.section-header p {
  font-size: 1.15rem;
  margin-top: 0.5rem;
}

/* =================================================== */
/* 1. HERO SECTION                                     */
/* =================================================== */
.hero-section {
  padding: 5rem 0 6rem 0;
  position: relative;
  overflow: hidden;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 3.5rem;
  align-items: center;
}

.hero-content h1 {
  margin-bottom: 1.5rem;
}

.hero-content .hero-subtitle {
  font-size: 1.2rem;
  line-height: 1.6;
  color: var(--color-text-muted);
  margin-bottom: 2.25rem;
}

.hero-metrics-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
  margin-bottom: 2.5rem;
  padding: 1.25rem;
  background: #FFFFFF;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}

.metric-stat {
  display: flex;
  flex-direction: column;
}

.metric-stat-val {
  font-family: var(--font-display);
  font-size: 1.75rem;
  font-weight: 800;
  color: var(--color-text-primary);
  line-height: 1.1;
}

.metric-stat-val.highlight-red {
  color: var(--color-pulse-red);
}

.metric-stat-val.highlight-emerald {
  color: var(--color-emerald);
}

.metric-stat-label {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  margin-top: 0.25rem;
  line-height: 1.35;
}

.hero-ctas {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}

/* Hero Visual & Oscilloscope */
.hero-visual-card {
  background: #FFFFFF;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  position: relative;
}

.oscilloscope-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--border-subtle);
  background: #FAFAFA;
}

.oscilloscope-meta {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--color-text-secondary);
}

.oscilloscope-lead-badge {
  background: var(--color-text-primary);
  color: #FFFFFF;
  padding: 0.2rem 0.5rem;
  border-radius: var(--radius-sm);
  font-weight: 700;
}

.oscilloscope-canvas-wrapper {
  position: relative;
  height: 220px;
  background-color: #FFF9F7;
  border-bottom: 1px solid var(--border-subtle);
  overflow: hidden;
}

#ecgCanvas {
  width: 100%;
  height: 100%;
  display: block;
}

.oscilloscope-footer {
  padding: 1.25rem;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  background: #FFFFFF;
}

.telemetry-pill {
  border: 1px solid var(--border-subtle);
  padding: 0.6rem 0.85rem;
  border-radius: var(--radius-md);
  background: var(--bg-secondary);
}

.telemetry-pill-label {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  font-family: var(--font-mono);
  text-transform: uppercase;
}

.telemetry-pill-val {
  font-size: 1.125rem;
  font-weight: 700;
  font-family: var(--font-mono);
  color: var(--color-text-primary);
}

.hardware-callouts {
  padding: 1rem 1.25rem;
  background: #F8FAFC;
  border-top: 1px solid var(--border-subtle);
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}

.hw-tag {
  font-size: 0.75rem;
  font-weight: 600;
  background: #FFFFFF;
  border: 1px solid var(--border-medium);
  padding: 0.25rem 0.6rem;
  border-radius: var(--radius-sm);
  color: var(--color-text-secondary);
}

/* =================================================== */
/* 2. PROBLEM STATEMENT SECTION                        */
/* =================================================== */
.problem-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  margin-bottom: 3rem;
}

.problem-card {
  background: #FFFFFF;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 2.25rem;
  box-shadow: var(--shadow-sm);
  position: relative;
  transition: all 0.3s ease;
}

.problem-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.problem-card-icon {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.5rem;
  font-size: 1.5rem;
  background: rgba(239, 68, 68, 0.08);
  color: var(--color-pulse-red-dark);
}

.problem-card h3 {
  margin-bottom: 0.5rem;
}

.problem-tag {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--color-pulse-red-dark);
  font-weight: 600;
  margin-bottom: 1.25rem;
  display: block;
}

.problem-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.problem-list li {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  font-size: 0.95rem;
  color: var(--color-text-muted);
}

.problem-list li svg {
  flex-shrink: 0;
  width: 18px;
  height: 18px;
  color: var(--color-pulse-red);
  margin-top: 3px;
}

.problem-banner {
  background: #FFFFFF;
  border: 2px solid var(--color-pulse-red);
  border-radius: var(--radius-lg);
  padding: 1.75rem 2.5rem;
  text-align: center;
  box-shadow: 0 10px 30px rgba(239, 68, 68, 0.06);
}

.problem-banner p {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--color-text-primary);
  margin: 0;
}

/* =================================================== */
/* 3. WHAT WE ARE PROPOSING                            */
/* =================================================== */
.solution-architecture-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2.5rem;
}

.arch-card {
  background: #FFFFFF;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  padding: 2.5rem;
  box-shadow: var(--shadow-md);
  position: relative;
  overflow: hidden;
}

.arch-badge {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  font-weight: 700;
  padding: 0.35rem 0.75rem;
  border-radius: var(--radius-full);
  display: inline-block;
  margin-bottom: 1rem;
}

.arch-card.hardware .arch-badge {
  background: var(--color-pulse-red-light);
  color: var(--color-pulse-red);
  border: 1px solid var(--color-pulse-red-border);
}

.arch-card.software .arch-badge {
  background: var(--color-cyan-light);
  color: var(--color-cyan);
  border: 1px solid rgba(2, 132, 199, 0.25);
}

.arch-card h3 {
  font-size: 1.65rem;
  margin-bottom: 1rem;
}

.arch-img-preview {
  width: 100%;
  height: 240px;
  object-fit: cover;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-subtle);
  margin: 1.5rem 0;
}

.feature-bullets {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.feature-bullets li {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  font-size: 0.95rem;
  color: var(--color-text-muted);
}

.feature-bullets li svg {
  flex-shrink: 0;
  width: 18px;
  height: 18px;
  color: var(--color-emerald);
  margin-top: 3px;
}

/* =================================================== */
/* 4. HOW WE ARE SOLVING THE PROBLEM (PHASE 1)         */
/* =================================================== */
.phase-showcase-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3.5rem;
  align-items: center;
}

.phase-content h2 {
  margin-bottom: 1.25rem;
}

.phase-content p {
  margin-bottom: 1.5rem;
}

.phase-features-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
  margin-top: 2rem;
}

.phase-feature-item {
  background: #FFFFFF;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  box-shadow: var(--shadow-sm);
}

.phase-feature-item h4 {
  font-size: 1rem;
  margin-bottom: 0.35rem;
}

.phase-feature-item p {
  font-size: 0.875rem;
  margin: 0;
  line-height: 1.45;
}

.phase-visual-card {
  background: #FFFFFF;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
}

.phase-img {
  width: 100%;
  height: auto;
  display: block;
}

/* =================================================== */
/* 5. WHAT WE ARE WORKING ON (PHASE 2 MEDICAL TRIAL)   */
/* =================================================== */
.phase2-strip {
  background: #FFFFFF;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-md);
  padding: 3rem;
  margin-top: 2rem;
}

.phase2-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3.5rem;
  align-items: center;
}

.milestones-timeline {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  position: relative;
  padding-left: 2rem;
  margin-top: 2rem;
}

.milestones-timeline::before {
  content: '';
  position: absolute;
  left: 7px;
  top: 8px;
  bottom: 8px;
  width: 2px;
  background: var(--border-medium);
}

.timeline-step {
  position: relative;
}

.timeline-step::before {
  content: '';
  position: absolute;
  left: -2rem;
  top: 4px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: #FFFFFF;
  border: 3px solid var(--color-pulse-red);
}

.timeline-step h4 {
  font-size: 1.05rem;
  margin-bottom: 0.25rem;
}

.timeline-step p {
  font-size: 0.9rem;
  margin: 0;
}

/* =================================================== */
/* 6. TRANSPARENT PRICING MATRIX                       */
/* =================================================== */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  align-items: stretch;
}

.pricing-card {
  background: #FFFFFF;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  padding: 2.5rem;
  box-shadow: var(--shadow-md);
  display: flex;
  flex-direction: column;
  position: relative;
  transition: all 0.3s ease;
}

.pricing-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
}

.pricing-card.featured {
  border: 2px solid var(--color-pulse-red);
  box-shadow: 0 15px 35px rgba(239, 68, 68, 0.1);
}

.popular-badge {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--color-pulse-red);
  color: #FFFFFF;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  padding: 0.3rem 0.85rem;
  border-radius: var(--radius-full);
  letter-spacing: 0.05em;
}

.pricing-tier-name {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
}

.pricing-price-box {
  display: flex;
  align-items: baseline;
  gap: 0.35rem;
  margin-bottom: 1.5rem;
}

.pricing-num {
  font-family: var(--font-display);
  font-size: 3rem;
  font-weight: 800;
  color: var(--color-text-primary);
  line-height: 1;
}

.pricing-cadence {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
}

.pricing-desc {
  font-size: 0.9375rem;
  margin-bottom: 1.75rem;
  min-height: 48px;
}

.pricing-divider {
  height: 1px;
  background: var(--border-subtle);
  margin-bottom: 1.75rem;
}

.pricing-features-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  margin-bottom: 2.25rem;
  flex-grow: 1;
}

.pricing-features-list li {
  display: flex;
  align-items: flex-start;
  gap: 0.65rem;
  font-size: 0.9375rem;
  color: var(--color-text-secondary);
}

.pricing-features-list li svg {
  flex-shrink: 0;
  width: 18px;
  height: 18px;
  color: var(--color-emerald);
  margin-top: 3px;
}

/* =================================================== */
/* 7. ROI (PRACTICE REVENUE CALCULATOR)                */
/* =================================================== */
.roi-calculator-card {
  background: #FFFFFF;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  padding: 3.5rem;
  box-shadow: var(--shadow-lg);
}

.roi-layout-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3.5rem;
  align-items: center;
}

.roi-control-box {
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 2rem;
}

.slider-group {
  margin-bottom: 2rem;
}

.slider-label-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 0.75rem;
}

.slider-label {
  font-weight: 600;
  color: var(--color-text-primary);
}

.slider-cohort-val {
  font-family: var(--font-mono);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-pulse-red);
}

.custom-range-slider {
  width: 100%;
  height: 8px;
  border-radius: 4px;
  background: var(--border-medium);
  outline: none;
  accent-color: var(--color-pulse-red);
  cursor: pointer;
}

.cpt-breakdown-box {
  border-top: 1px solid var(--border-subtle);
  padding-top: 1.5rem;
}

.cpt-title {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  text-transform: uppercase;
  color: var(--color-text-muted);
  letter-spacing: 0.05em;
  margin-bottom: 1rem;
}

.cpt-item {
  display: flex;
  justify-content: space-between;
  font-size: 0.875rem;
  margin-bottom: 0.6rem;
}

.cpt-item-fee {
  font-family: var(--font-mono);
  font-weight: 600;
  color: var(--color-text-primary);
}

.roi-results-box {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.roi-result-card {
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  background: #FFFFFF;
  box-shadow: var(--shadow-sm);
}

.roi-result-card.card-net-profit {
  border: 2px solid var(--color-emerald);
  background: rgba(16, 185, 129, 0.03);
}

.roi-result-label {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.5rem;
}

.roi-result-num {
  font-family: var(--font-display);
  font-size: 2.75rem;
  font-weight: 800;
  line-height: 1;
  color: var(--color-text-primary);
}

.roi-result-num.emerald-profit {
  color: var(--color-emerald-dark);
}

.roi-result-note {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  margin-top: 0.5rem;
}

.roi-clinic-callout {
  background: var(--color-emerald-light);
  border: 1px solid rgba(16, 185, 129, 0.25);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  margin-top: 1rem;
  font-size: 0.9375rem;
  color: var(--color-emerald-dark);
  font-weight: 500;
}

/* =================================================== */
/* FOOTER                                              */
/* =================================================== */
.commercial-footer {
  background: #FFFFFF;
  border-top: 1px solid var(--border-subtle);
  padding: 4rem 0 2.5rem 0;
}

.footer-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 3rem;
  flex-wrap: wrap;
  gap: 2rem;
}

.footer-nav-links {
  display: flex;
  gap: 2rem;
  list-style: none;
  flex-wrap: wrap;
}

.footer-nav-links a {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
}

.footer-nav-links a:hover {
  color: var(--color-text-primary);
}

.footer-bottom {
  border-top: 1px solid var(--border-subtle);
  padding-top: 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1.5rem;
  font-size: 0.8125rem;
  color: var(--color-text-faint);
}

.fda-disclaimer {
  max-width: 700px;
  line-height: 1.5;
}

/* =================================================== */
/* RESPONSIVE DESIGN                                   */
/* =================================================== */
@media (max-width: 1024px) {
  .hero-grid,
  .solution-architecture-grid,
  .phase-showcase-grid,
  .phase2-grid,
  .roi-layout-grid {
    grid-template-columns: 1fr;
    gap: 3rem;
  }

  .pricing-grid {
    grid-template-columns: 1fr;
    max-width: 500px;
    margin: 0 auto;
  }

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

@media (max-width: 768px) {
  .nav-menu {
    display: none;
  }

  .header-actions .btn-secondary {
    display: none;
  }

  .mobile-toggle {
    display: block;
  }

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

  .phase-features-grid {
    grid-template-columns: 1fr;
  }

  .hero-metrics-strip {
    grid-template-columns: 1fr;
  }

  .roi-calculator-card {
    padding: 2rem 1.5rem;
  }

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

/* =================================================== */
/* PRE-LAUNCH ANNOUNCEMENT BANNER                      */
/* =================================================== */
.prelaunch-banner {
  background: #0B0F19;
  color: #FFFFFF;
  border-bottom: 1px solid rgba(239, 68, 68, 0.3);
  padding: 0.6rem 0;
  font-size: 0.84rem;
  position: relative;
  z-index: 101;
}

.prelaunch-container {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  flex-wrap: wrap;
  text-align: center;
}

.prelaunch-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  background: rgba(239, 68, 68, 0.18);
  border: 1px solid rgba(239, 68, 68, 0.4);
  color: #FCA5A5;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  padding: 0.2rem 0.6rem;
  border-radius: var(--radius-full);
}

.prelaunch-text {
  color: #E2E8F0;
  font-weight: 400;
}

.prelaunch-text strong {
  color: #FFFFFF;
}

.prelaunch-btn {
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.25);
  color: #FFFFFF;
  font-family: var(--font-body);
  font-size: 0.78rem;
  font-weight: 600;
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all 0.2s ease;
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
}

.prelaunch-btn:hover {
  background: var(--color-pulse-red);
  border-color: var(--color-pulse-red);
  transform: translateY(-1px);
}

/* =================================================== */
/* ENQUIRY MODAL SYSTEM                                */
/* =================================================== */
.beatio-modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.68);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  z-index: 99999;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.25rem;
  opacity: 0;
  visibility: hidden;
  transition: opacity 260ms cubic-bezier(0.16, 1, 0.3, 1), visibility 260ms ease;
}

.beatio-modal-backdrop.open {
  opacity: 1;
  visibility: visible;
}

.beatio-modal-dialog {
  background: #FFFFFF;
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-xl);
  width: 100%;
  max-width: 580px;
  max-height: 92vh;
  overflow-y: auto;
  box-shadow: 0 25px 60px -15px rgba(15, 23, 42, 0.25), 0 0 35px rgba(239, 68, 68, 0.08);
  position: relative;
  padding: 2.25rem 2.25rem 2rem 2.25rem;
  transform: scale(0.94) translateY(14px);
  opacity: 0;
  transition: transform 260ms cubic-bezier(0.16, 1, 0.3, 1), opacity 260ms ease;
}

.beatio-modal-backdrop.open .beatio-modal-dialog {
  transform: scale(1) translateY(0);
  opacity: 1;
}

.beatio-modal-close {
  position: absolute;
  top: 1.25rem;
  right: 1.25rem;
  background: #F1F5F9;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-full);
  width: 34px;
  height: 34px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-muted);
  cursor: pointer;
  transition: all 0.18s ease;
  z-index: 10;
}

.beatio-modal-close:hover {
  background: #E2E8F0;
  color: var(--color-text-primary);
  transform: rotate(90deg);
}

.beatio-modal-header {
  margin-bottom: 1.5rem;
  padding-right: 2rem;
}

.beatio-modal-title {
  font-size: 1.65rem;
  font-weight: 800;
  margin-bottom: 0.4rem;
  color: var(--color-text-primary);
}

.beatio-modal-subtitle {
  font-size: 0.92rem;
  color: var(--color-text-muted);
  line-height: 1.55;
}

.beatio-modal-subtitle a {
  color: var(--color-pulse-red);
  font-weight: 600;
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* Modal Form Elements */
.beatio-modal-form {
  display: flex;
  flex-direction: column;
  gap: 1.1rem;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.form-label {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--color-text-secondary);
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.form-label .required {
  color: var(--color-pulse-red);
  font-weight: 700;
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  font-family: var(--font-body);
  font-size: 0.9rem;
  color: var(--color-text-primary);
  background: #FFFFFF;
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-sm);
  padding: 0.65rem 0.85rem;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
  outline: none;
}

.form-select {
  cursor: pointer;
  background-image: url("data:image/svg+xml,%3Csvg width='10' height='6' viewBox='0 0 10 6' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1L5 5L9 1' stroke='%2364748B' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.85rem center;
  background-size: 10px 6px;
  padding-right: 2.2rem;
  appearance: none;
  -webkit-appearance: none;
}

.form-textarea {
  resize: vertical;
  min-height: 80px;
  line-height: 1.5;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  border-color: var(--color-pulse-red);
  box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.14);
}

.form-input.is-invalid,
.form-select.is-invalid {
  border-color: #EF4444;
  background-color: rgba(239, 68, 68, 0.02);
}

.form-footer {
  margin-top: 0.6rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.btn-submit-enquiry {
  width: 100%;
  padding: 0.85rem 1.5rem;
  font-size: 0.95rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
}

.direct-email-note {
  text-align: center;
  font-size: 0.8125rem;
  color: var(--color-text-muted);
}

.direct-email-note a {
  color: var(--color-pulse-red);
  font-weight: 600;
  text-decoration: underline;
  text-underline-offset: 2px;
}

/* Success View */
.enquiry-success-view {
  text-align: center;
  padding: 1.5rem 0.5rem;
}

.success-icon-wrap {
  width: 64px;
  height: 64px;
  border-radius: var(--radius-full);
  background: var(--color-emerald-light);
  color: var(--color-emerald);
  border: 2px solid rgba(16, 185, 129, 0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1.25rem auto;
  animation: pulseGlow 2.5s infinite;
}

.success-title {
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--color-text-primary);
  margin-bottom: 0.4rem;
}

.success-desc {
  font-size: 0.92rem;
  color: var(--color-text-muted);
  max-width: 440px;
  margin: 0 auto 1.5rem auto;
  line-height: 1.6;
}

.success-desc strong {
  color: var(--color-pulse-red);
}

.success-summary-box {
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1.2rem;
  text-align: left;
  margin-bottom: 1.75rem;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.summary-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  font-size: 0.875rem;
  gap: 1rem;
}

.summary-label {
  font-weight: 600;
  color: var(--color-text-muted);
  font-size: 0.8125rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.summary-val {
  font-weight: 600;
  color: var(--color-text-primary);
  text-align: right;
  word-break: break-all;
}

.summary-val.highlight-red {
  color: var(--color-pulse-red);
  font-family: var(--font-mono);
}

.success-actions {
  display: flex;
  gap: 0.75rem;
  justify-content: center;
  flex-wrap: wrap;
}

/* Footer Inquiries Callout */
.footer-inquiries-card {
  background: #F8FAFC;
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-lg);
  padding: 1.5rem 2rem;
  margin-bottom: 2.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.footer-inquiries-info h4 {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 0.25rem;
  color: var(--color-text-primary);
}

.footer-inquiries-info p {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  margin: 0;
}

.footer-inquiries-info a {
  color: var(--color-pulse-red);
  font-weight: 600;
}

@media (max-width: 640px) {
  .beatio-modal-dialog {
    padding: 1.75rem 1.25rem;
  }
  .form-row {
    grid-template-columns: 1fr;
  }
  .footer-inquiries-card {
    flex-direction: column;
    align-items: flex-start;
  }
}