/* CardiaX Intelligence — Clinical Homepage */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&family=Source+Serif+4:wght@600;700&display=swap');

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

:root {
  --navy: #0B3D91;
  --navy-dark: #082B6A;
  --navy-light: #1A5BC4;
  --blue-50: #EBF4FF;
  --blue-100: #D1E3FF;
  --sky: #4FC3F7;
  --green: #10B981;
  --green-light: #ECFDF5;
  --amber: #F59E0B;
  --amber-light: #FFF7ED;
  --red: #EF4444;
  --red-light: #FEF2F2;
  --gray-50: #F8FAFC;
  --gray-100: #F1F5F9;
  --gray-200: #E2E8F0;
  --gray-300: #CBD5E1;
  --gray-400: #94A3B8;
  --gray-500: #64748B;
  --gray-600: #475569;
  --gray-700: #334155;
  --gray-800: #1E293B;
  --gray-900: #0F172A;
  --white: #FFFFFF;
  --radius: 8px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
  --shadow: 0 1px 3px rgba(0,0,0,0.1), 0 1px 2px rgba(0,0,0,0.06);
  --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.1), 0 2px 4px -1px rgba(0,0,0,0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.1), 0 4px 6px -2px rgba(0,0,0,0.05);
  --shadow-xl: 0 20px 25px -5px rgba(0,0,0,0.1), 0 10px 10px -5px rgba(0,0,0,0.04);
  --transition: 0.2s ease;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--white);
  color: var(--gray-700);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5, h6 {
  color: var(--gray-900);
  line-height: 1.2;
  font-weight: 700;
}

a {
  text-decoration: none;
  color: inherit;
}

.container {
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* ===== NAVIGATION ===== */
nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--gray-200);
  transition: all var(--transition);
}

nav.scrolled {
  box-shadow: var(--shadow-md);
}

.nav-inner {
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.logo-mark {
  flex-shrink: 0;
}

.logo-text {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--gray-900);
  letter-spacing: -0.3px;
}

.logo-x {
  color: var(--navy);
}

.logo-sub {
  font-weight: 400;
  color: var(--gray-500);
  font-size: 0.9rem;
  margin-left: 0.15rem;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 2rem;
  list-style: none;
}

.nav-links a {
  font-size: 0.9rem;
  color: var(--gray-600);
  font-weight: 500;
  transition: color var(--transition);
}

.nav-links a:hover {
  color: var(--navy);
}

.nav-cta {
  background: var(--navy) !important;
  color: white !important;
  padding: 0.55rem 1.25rem;
  border-radius: var(--radius);
  font-weight: 600 !important;
  font-size: 0.85rem !important;
  transition: all var(--transition) !important;
}

.nav-cta:hover {
  background: var(--navy-dark) !important;
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(11,61,145,0.25);
}

.mobile-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.mobile-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--gray-700);
  border-radius: 2px;
  transition: var(--transition);
}

/* ===== BUTTONS ===== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: 'Inter', sans-serif;
  font-weight: 600;
  font-size: 0.95rem;
  border: none;
  cursor: pointer;
  transition: all var(--transition);
  text-decoration: none;
  border-radius: var(--radius);
}

.btn-primary {
  background: var(--navy);
  color: white;
  padding: 0.85rem 1.75rem;
}

.btn-primary:hover {
  background: var(--navy-dark);
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(11,61,145,0.3);
}

.btn-outline {
  background: transparent;
  color: var(--navy);
  padding: 0.85rem 1.75rem;
  border: 1.5px solid var(--gray-300);
}

.btn-outline:hover {
  border-color: var(--navy);
  background: var(--blue-50);
}

.btn-full {
  width: 100%;
  justify-content: center;
}

/* ===== HERO ===== */
.hero {
  padding: 7rem 0 5rem;
  background: linear-gradient(180deg, var(--gray-50) 0%, var(--white) 100%);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -100px;
  right: -200px;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(11,61,145,0.04) 0%, transparent 70%);
  pointer-events: none;
}

.hero-inner {
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 1.5rem;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--green-light);
  color: #065F46;
  padding: 0.4rem 0.9rem;
  border-radius: 100px;
  font-size: 0.8rem;
  font-weight: 600;
  margin-bottom: 1.5rem;
  border: 1px solid rgba(16,185,129,0.15);
}

.hero h1 {
  font-size: clamp(2.2rem, 4.5vw, 3.2rem);
  font-weight: 800;
  line-height: 1.12;
  margin-bottom: 1.25rem;
  letter-spacing: -0.5px;
  color: var(--gray-900);
}

.hero-highlight {
  color: var(--navy);
  position: relative;
}

.hero-highlight::after {
  content: '';
  position: absolute;
  bottom: 2px;
  left: 0;
  right: 0;
  height: 6px;
  background: rgba(11,61,145,0.12);
  border-radius: 3px;
}

.hero-sub {
  font-size: 1.1rem;
  color: var(--gray-600);
  line-height: 1.7;
  margin-bottom: 2rem;
  max-width: 520px;
}

.hero-actions {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
}

/* Hero Visual Card */
.hero-visual {
  display: flex;
  justify-content: center;
}

.hero-card {
  background: white;
  border-radius: var(--radius-lg);
  border: 1px solid var(--gray-200);
  box-shadow: var(--shadow-xl);
  overflow: hidden;
  max-width: 380px;
  width: 100%;
}

.hero-card-header {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.25rem;
  background: var(--gray-50);
  border-bottom: 1px solid var(--gray-200);
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--gray-700);
}

.hero-card-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
}

.hero-card-dot.green {
  background: var(--green);
  box-shadow: 0 0 0 3px rgba(16,185,129,0.2);
}

.hero-vessel-svg {
  display: block;
  padding: 1rem;
}

.hero-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 1.25rem;
  background: var(--gray-50);
  border-top: 1px solid var(--gray-200);
  font-size: 0.78rem;
}

.hero-card-status {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  color: var(--green);
  font-weight: 600;
}

.status-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--green);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; box-shadow: 0 0 0 0 rgba(16,185,129,0.4); }
  50% { opacity: 0.8; box-shadow: 0 0 0 4px rgba(16,185,129,0); }
}

.hero-card-time {
  color: var(--gray-400);
  font-family: monospace;
}

/* ===== SECTION SHARED ===== */
.section-label {
  display: inline-block;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 0.75rem;
}

.section-header {
  text-align: center;
  margin-bottom: 3.5rem;
}

.section-header h2 {
  font-size: clamp(1.75rem, 3.5vw, 2.5rem);
  margin-bottom: 1rem;
  letter-spacing: -0.3px;
}

.section-header p {
  color: var(--gray-500);
  font-size: 1.05rem;
  max-width: 620px;
  margin: 0 auto;
  line-height: 1.7;
}

/* ===== CLINICAL EVIDENCE ===== */
.evidence-section {
  padding: 5rem 0;
  background: var(--gray-50);
}

.evidence-header {
  text-align: center;
  margin-bottom: 3rem;
}

.evidence-header h2 {
  font-size: clamp(1.75rem, 3.5vw, 2.5rem);
  margin-bottom: 1rem;
}

.evidence-header p {
  color: var(--gray-500);
  font-size: 1.05rem;
  max-width: 600px;
  margin: 0 auto;
}

/* ADAPT Study Card */
.study-card {
  background: white;
  border-radius: var(--radius-lg);
  border: 1px solid var(--gray-200);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  margin-bottom: 3rem;
  position: relative;
}

.study-card-badge {
  position: absolute;
  top: 1.5rem;
  right: 1.5rem;
  background: var(--navy);
  color: white;
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  padding: 0.35rem 0.75rem;
  border-radius: 100px;
}

.study-card-inner {
  padding: 2.5rem;
}

.study-info h3 {
  font-size: 1.5rem;
  color: var(--gray-900);
  margin-bottom: 0.75rem;
  font-family: 'Source Serif 4', Georgia, serif;
}

.study-desc {
  color: var(--gray-600);
  font-size: 1rem;
  line-height: 1.7;
  margin-bottom: 1.25rem;
  max-width: 600px;
}

.study-meta {
  display: flex;
  gap: 1.5rem;
  flex-wrap: wrap;
  margin-bottom: 2rem;
}

.study-meta span {
  font-size: 0.85rem;
  color: var(--gray-500);
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.study-meta strong {
  color: var(--gray-800);
}

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

.stat-card {
  background: var(--gray-50);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius);
  padding: 1.5rem 1.25rem;
  text-align: center;
}

.stat-card.highlight-stat {
  background: var(--blue-50);
  border-color: rgba(11,61,145,0.15);
}

.stat-value {
  font-size: 2.25rem;
  font-weight: 800;
  color: var(--navy);
  line-height: 1;
  margin-bottom: 0.5rem;
  letter-spacing: -1px;
}

.stat-unit {
  font-size: 1.25rem;
  font-weight: 600;
}

.stat-label {
  font-size: 0.78rem;
  color: var(--gray-500);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  font-weight: 600;
}

/* Evidence Grid */
.evidence-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.evidence-item {
  background: white;
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-lg);
  padding: 2rem 1.5rem;
  transition: all var(--transition);
}

.evidence-item:hover {
  border-color: var(--gray-300);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.evidence-icon {
  width: 48px;
  height: 48px;
  background: var(--blue-50);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.25rem;
}

.evidence-item h4 {
  font-size: 1rem;
  margin-bottom: 0.5rem;
  color: var(--gray-800);
}

.evidence-item p {
  font-size: 0.9rem;
  color: var(--gray-500);
  line-height: 1.6;
}

/* ===== HOW IT WORKS ===== */
.how-section {
  padding: 5rem 0;
  background: white;
}

.steps-container {
  max-width: 720px;
  margin: 0 auto;
  position: relative;
}

.step-connector {
  position: absolute;
  left: 28px;
  top: 48px;
  bottom: 48px;
  width: 2px;
  background: linear-gradient(180deg, var(--navy) 0%, var(--green) 50%, var(--amber) 100%);
  opacity: 0.15;
}

.step {
  display: flex;
  gap: 2rem;
  margin-bottom: 2.5rem;
  position: relative;
}

.step:last-child {
  margin-bottom: 0;
}

.step-number-wrap {
  flex-shrink: 0;
}

.step-number {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--navy);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  font-weight: 800;
  position: relative;
  z-index: 1;
  box-shadow: 0 4px 12px rgba(11,61,145,0.2);
}

.step-content {
  flex: 1;
  padding-top: 0.5rem;
}

.step-icon-wrap {
  margin-bottom: 1rem;
}

.step-content h3 {
  font-size: 1.15rem;
  margin-bottom: 0.5rem;
  color: var(--gray-800);
}

.step-content p {
  font-size: 0.95rem;
  color: var(--gray-500);
  line-height: 1.7;
}

/* ===== KEYA PARTNERSHIP ===== */
.partnership-section {
  padding: 5rem 0;
  background: var(--gray-50);
}

.partnership-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: start;
}

.partnership-content h2 {
  font-size: clamp(1.75rem, 3.5vw, 2.25rem);
  margin-bottom: 1.25rem;
  letter-spacing: -0.3px;
}

.partnership-desc {
  font-size: 1.05rem;
  color: var(--gray-600);
  line-height: 1.7;
  margin-bottom: 2rem;
}

.partnership-features {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.p-feature {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  font-size: 0.95rem;
  color: var(--gray-700);
  line-height: 1.5;
}

.p-feature svg {
  flex-shrink: 0;
  margin-top: 2px;
}

.p-feature strong {
  color: var(--gray-900);
}

/* Partnership Visual */
.partnership-visual {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.fda-badge-card {
  background: white;
  border: 2px solid var(--navy);
  border-radius: var(--radius-lg);
  padding: 1.5rem 2rem;
  display: flex;
  align-items: center;
  gap: 1.25rem;
  box-shadow: var(--shadow-md);
}

.fda-icon {
  width: 64px;
  height: 64px;
  background: var(--blue-50);
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.fda-text {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
}

.fda-text strong {
  font-size: 1.1rem;
  color: var(--navy);
}

.fda-text span {
  font-size: 0.85rem;
  color: var(--gray-500);
}

.tech-spec-card {
  background: white;
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-lg);
  padding: 2rem;
  box-shadow: var(--shadow);
}

.tech-spec-card h4 {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--gray-500);
  margin-bottom: 1.25rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--gray-200);
}

.spec-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.6rem 0;
  border-bottom: 1px solid var(--gray-100);
}

.spec-row:last-child {
  border-bottom: none;
}

.spec-label {
  font-size: 0.9rem;
  color: var(--gray-500);
}

.spec-value {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--gray-800);
}

/* ===== RURAL HOSPITALS ===== */
.hospitals-section {
  padding: 5rem 0;
  background: white;
}

.value-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-bottom: 3.5rem;
}

.v-card {
  background: white;
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-lg);
  padding: 2rem 1.75rem;
  transition: all var(--transition);
}

.v-card:hover {
  border-color: var(--navy);
  box-shadow: var(--shadow-lg);
  transform: translateY(-3px);
}

.v-card-icon {
  width: 56px;
  height: 56px;
  background: var(--blue-50);
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.25rem;
}

.v-card h3 {
  font-size: 1.1rem;
  margin-bottom: 0.75rem;
  color: var(--gray-800);
}

.v-card p {
  font-size: 0.9rem;
  color: var(--gray-500);
  line-height: 1.65;
  margin-bottom: 1.25rem;
}

.v-card-metric {
  padding-top: 1rem;
  border-top: 1px solid var(--gray-100);
}

.metric-value {
  display: block;
  font-size: 1.75rem;
  font-weight: 800;
  color: var(--navy);
  letter-spacing: -0.5px;
}

.metric-label {
  display: block;
  font-size: 0.8rem;
  color: var(--gray-400);
  margin-top: 0.15rem;
}

/* Comparison Table */
.comparison-wrap {
  background: white;
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow);
}

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

.comparison-table thead {
  background: var(--gray-50);
}

.comparison-table th {
  padding: 1rem 1.5rem;
  text-align: left;
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--gray-500);
  border-bottom: 1px solid var(--gray-200);
}

.comparison-table .dim-head {
  color: var(--gray-400);
}

.comparison-table .highlight-head {
  color: var(--navy);
}

.comparison-table td {
  padding: 0.85rem 1.5rem;
  font-size: 0.9rem;
  border-bottom: 1px solid var(--gray-100);
  color: var(--gray-700);
}

.comparison-table td:first-child {
  font-weight: 600;
  color: var(--gray-800);
}

.comparison-table .dim {
  color: var(--gray-400);
}

.comparison-table .highlight {
  color: var(--navy);
  font-weight: 600;
}

.comparison-table tbody tr:hover {
  background: var(--blue-50);
}

.comparison-table tbody tr:last-child td {
  border-bottom: none;
}

/* ===== CONTACT ===== */
.contact-section {
  padding: 5rem 0;
  background: var(--navy);
  color: white;
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: start;
}

.contact-content h2 {
  font-size: clamp(1.75rem, 3.5vw, 2.25rem);
  color: white;
  margin-bottom: 1rem;
}

.contact-content p {
  color: rgba(255,255,255,0.75);
  font-size: 1.05rem;
  line-height: 1.7;
  margin-bottom: 2rem;
}

.contact-trust {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.trust-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.9rem;
  color: rgba(255,255,255,0.7);
  font-weight: 500;
}

.trust-item svg {
  color: var(--sky);
  flex-shrink: 0;
}

/* Contact Form */
.contact-form-wrap {
  position: relative;
}

.contact-form {
  background: white;
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  box-shadow: var(--shadow-xl);
}

.contact-form h3 {
  font-size: 1.2rem;
  margin-bottom: 1.5rem;
  color: var(--gray-800);
}

.form-group {
  margin-bottom: 1.15rem;
}

.form-group label {
  display: block;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--gray-600);
  margin-bottom: 0.35rem;
}

.form-group input, .form-group select {
  width: 100%;
  padding: 0.75rem 1rem;
  border: 1px solid var(--gray-300);
  border-radius: var(--radius);
  font-family: 'Inter', sans-serif;
  font-size: 0.95rem;
  color: var(--gray-800);
  background: white;
  outline: none;
  transition: border-color var(--transition), box-shadow var(--transition);
  -webkit-appearance: none;
  appearance: none;
}

.form-group select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%2394A3B8' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  padding-right: 2rem;
}

.form-group input:focus, .form-group select:focus {
  border-color: var(--navy);
  box-shadow: 0 0 0 3px rgba(11,61,145,0.1);
}

.form-group input::placeholder {
  color: var(--gray-400);
}

.form-note {
  text-align: center;
  font-size: 0.8rem;
  color: var(--gray-400);
  margin-top: 0.75rem;
}

.form-success {
  display: none;
  position: absolute;
  inset: 0;
  background: white;
  border-radius: var(--radius-lg);
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 2.5rem;
  gap: 0.75rem;
  box-shadow: var(--shadow-xl);
}

.form-success.show {
  display: flex;
}

.form-success h4 {
  font-size: 1.2rem;
  color: var(--gray-800);
}

.form-success p {
  color: var(--gray-500);
  font-size: 0.95rem;
}

/* ===== FOOTER ===== */
footer {
  padding: 3rem 0 2rem;
  background: var(--gray-50);
  border-top: 1px solid var(--gray-200);
}

.footer-inner {
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.footer-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  padding-bottom: 2rem;
  border-bottom: 1px solid var(--gray-200);
  margin-bottom: 1.5rem;
}

.footer-tagline {
  font-size: 0.9rem;
  color: var(--gray-500);
}

.footer-links-grid {
  display: flex;
  gap: 4rem;
}

.footer-col h5 {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--gray-400);
  margin-bottom: 0.75rem;
}

.footer-col {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.footer-col a {
  font-size: 0.9rem;
  color: var(--gray-600);
  transition: color var(--transition);
}

.footer-col a:hover {
  color: var(--navy);
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 2rem;
}

.footer-bottom p {
  font-size: 0.8rem;
  color: var(--gray-400);
}

.footer-disclaimer {
  max-width: 500px;
  text-align: right;
  line-height: 1.5;
}

/* ===== ANIMATIONS ===== */
.fade-in {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.5s ease-out, transform 0.5s ease-out;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
  .hero-inner {
    grid-template-columns: 1fr;
    gap: 3rem;
    text-align: center;
  }

  .hero-sub {
    margin: 0 auto 2rem;
  }

  .hero-actions {
    justify-content: center;
  }

  .hero-visual {
    display: flex;
    justify-content: center;
  }

  .hero-card {
    max-width: 360px;
  }

  .partnership-grid {
    grid-template-columns: 1fr;
    gap: 3rem;
  }

  .contact-grid {
    grid-template-columns: 1fr;
    gap: 3rem;
  }

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

  .contact-trust {
    align-items: center;
  }
}

@media (max-width: 768px) {
  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: white;
    flex-direction: column;
    padding: 1.5rem;
    gap: 0.5rem;
    border-bottom: 1px solid var(--gray-200);
    box-shadow: var(--shadow-lg);
  }

  .nav-links.show {
    display: flex;
  }

  .nav-links li {
    width: 100%;
  }

  .nav-links a {
    display: block;
    padding: 0.75rem 1rem;
    border-radius: var(--radius);
  }

  .nav-links a:hover {
    background: var(--gray-50);
  }

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

  .mobile-toggle {
    display: flex;
  }

  .hero {
    padding: 6rem 0 3rem;
  }

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

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

  .value-cards {
    grid-template-columns: 1fr;
  }

  .comparison-table th,
  .comparison-table td {
    padding: 0.65rem 1rem;
    font-size: 0.82rem;
  }

  .footer-top {
    flex-direction: column;
    gap: 2rem;
  }

  .footer-bottom {
    flex-direction: column;
    gap: 0.75rem;
  }

  .footer-disclaimer {
    text-align: left;
  }
}

@media (max-width: 480px) {
  .hero h1 {
    font-size: 1.85rem;
  }

  .hero-sub {
    font-size: 1rem;
  }

  .hero-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .hero-actions .btn {
    justify-content: center;
  }

  .study-card-inner {
    padding: 1.5rem;
  }

  .study-stats {
    grid-template-columns: 1fr 1fr;
    gap: 0.75rem;
  }

  .stat-value {
    font-size: 1.75rem;
  }

  .step {
    flex-direction: column;
    gap: 1rem;
  }

  .step-connector {
    display: none;
  }

  .step-number {
    width: 44px;
    height: 44px;
    font-size: 1rem;
  }

  .contact-form {
    padding: 1.75rem;
  }

  .fda-badge-card {
    flex-direction: column;
    text-align: center;
    padding: 1.5rem;
  }
}