:root {
  --primary-navy: #0F172A;
  --clinic-blue: #1D4ED8;
  --clinic-blue-light: #3B82F6;
  --vital-emerald: #059669;
  --vital-emerald-light: #10B981;
  --vital-bg: #ECFDF5;
  --clinic-bg: #EFF6FF;
  --bg-slate: #F8FAFC;
  --text-dark: #0F172A;
  --text-muted: #475569;
  --text-light: #94A3B8;
  --border-color: #E2E8F0;
  --card-bg: #FFFFFF;
  --radius-lg: 20px;
  --radius-md: 12px;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.06);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.08);
  --shadow-lg: 0 12px 28px rgba(0,0,0,0.12);
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

@media (prefers-color-scheme: dark) {
  :root {
    --primary-navy: #0B0F19;
    --bg-slate: #111827;
    --text-dark: #F9FAFB;
    --text-muted: #9CA3AF;
    --border-color: #1F2937;
    --card-bg: #1F2937;
    --clinic-bg: #1E293B;
    --vital-bg: #064E3B;
  }
}

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

body {
  font-family: var(--font-sans);
  background-color: var(--bg-slate);
  color: var(--text-dark);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Header */
.site-header {
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-color);
  position: sticky;
  top: 0;
  z-index: 100;
}

@media (prefers-color-scheme: dark) {
  .site-header {
    background: rgba(17, 24, 39, 0.9);
  }
}

.nav-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.brand-group {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: inherit;
}

.brand-titles {
  display: flex;
  flex-direction: column;
}

.brand-name {
  font-size: 20px;
  font-weight: 800;
  letter-spacing: -0.5px;
}

.brand-name .highlight {
  color: var(--clinic-blue);
}

.brand-tag {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text-muted);
  font-weight: 600;
}

.nav-links {
  display: flex;
  gap: 28px;
}

.nav-item {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 14px;
  font-weight: 600;
  transition: color 0.15s ease;
}

.nav-item:hover {
  color: var(--clinic-blue);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 18px;
  border-radius: var(--radius-md);
  font-size: 14px;
  font-weight: 700;
  text-decoration: none;
  cursor: pointer;
  transition: all 0.2s ease;
  border: 1px solid transparent;
}

.btn-outline-clinic {
  border-color: var(--clinic-blue);
  color: var(--clinic-blue);
  background: transparent;
}

.btn-outline-clinic:hover {
  background: var(--clinic-bg);
}

.btn-primary-vital {
  background: var(--vital-emerald);
  color: #FFFFFF;
}

.btn-primary-vital:hover {
  background: #047857;
  transform: translateY(-1px);
}

.btn-clinic-primary {
  background: var(--clinic-blue);
  color: #FFFFFF;
}

.btn-clinic-primary:hover {
  background: #1e40af;
  transform: translateY(-1px);
}

.btn-clinic-secondary {
  background: var(--clinic-bg);
  color: var(--clinic-blue);
  border: 1px solid rgba(29, 78, 216, 0.2);
}

.btn-clinic-secondary:hover {
  background: #dbeafe;
}

.btn-vital-primary {
  background: var(--vital-emerald);
  color: #FFFFFF;
}

.btn-vital-primary:hover {
  background: #047857;
  transform: translateY(-1px);
}

.btn-vital-secondary {
  background: var(--vital-bg);
  color: var(--vital-emerald);
  border: 1px solid rgba(5, 150, 105, 0.2);
}

.btn-vital-secondary:hover {
  background: #d1fae5;
}

/* Hero Section */
.hero-section {
  padding: 64px 0 48px;
}

.hero-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--card-bg);
  padding: 6px 14px;
  border-radius: 999px;
  border: 1px solid var(--border-color);
  font-size: 13px;
  font-weight: 600;
  color: var(--text-muted);
  margin-bottom: 24px;
}

.pulse-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--vital-emerald);
  animation: pulse 1.5s infinite;
}

@keyframes pulse {
  0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7); }
  70% { transform: scale(1); box-shadow: 0 0 0 6px rgba(16, 185, 129, 0); }
  100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(16, 185, 129, 0); }
}

.hero-title {
  font-size: 48px;
  font-weight: 900;
  letter-spacing: -1.5px;
  line-height: 1.15;
  max-width: 900px;
  margin-bottom: 20px;
}

.gradient-text {
  background: linear-gradient(135deg, var(--clinic-blue) 0%, var(--vital-emerald) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-lead {
  font-size: 18px;
  color: var(--text-muted);
  max-width: 760px;
  line-height: 1.6;
  margin-bottom: 48px;
}

/* Hero Cards Grid */
.hero-cards-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  width: 100%;
  text-align: left;
}

.product-hero-card {
  background: var(--card-bg);
  border-radius: var(--radius-lg);
  padding: 36px;
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-md);
  display: flex;
  flex-direction: column;
  position: relative;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.product-hero-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.card-clinassist {
  border-top: 4px solid var(--clinic-blue);
}

.card-vital {
  border-top: 4px solid var(--vital-emerald);
}

.card-badge {
  font-size: 11px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  padding: 4px 10px;
  border-radius: 6px;
  width: max-content;
  margin-bottom: 16px;
}

.badge-blue {
  background: var(--clinic-bg);
  color: var(--clinic-blue);
}

.badge-emerald {
  background: var(--vital-bg);
  color: var(--vital-emerald);
}

.card-header-flex {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}

.vital-icon-title {
  display: flex;
  align-items: center;
  gap: 12px;
}

.vital-wordmark {
  font-size: 24px;
  font-weight: 900;
  display: flex;
  flex-direction: column;
  line-height: 1.1;
  color: var(--vital-emerald);
}

.vital-sub {
  font-size: 10px;
  color: var(--text-muted);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.version-tag {
  font-size: 11px;
  font-weight: 700;
  padding: 3px 8px;
  border-radius: 6px;
  background: #F1F5F9;
  color: var(--text-muted);
}

.tag-emerald {
  background: #D1FAE5;
  color: #065F46;
}

.product-hero-card h3 {
  font-size: 24px;
  font-weight: 800;
  margin-bottom: 12px;
}

.card-desc {
  font-size: 15px;
  color: var(--text-muted);
  margin-bottom: 24px;
  line-height: 1.5;
}

.feature-bullets {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 32px;
  flex-grow: 1;
}

.feature-bullets li {
  font-size: 14px;
  color: var(--text-dark);
  line-height: 1.45;
  position: relative;
  padding-left: 22px;
}

.feature-bullets li::before {
  content: "✓";
  position: absolute;
  left: 0;
  font-weight: 900;
}

.card-clinassist .feature-bullets li::before {
  color: var(--clinic-blue);
}

.card-vital .feature-bullets li::before {
  color: var(--vital-emerald);
}

.card-actions {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

/* Sections */
.section {
  padding: 80px 0;
}

.bg-alt {
  background: #F1F5F9;
}

@media (prefers-color-scheme: dark) {
  .bg-alt {
    background: #0F172A;
  }
}

.section-heading {
  margin-bottom: 56px;
}

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

.section-eyebrow {
  display: block;
  font-size: 12px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--clinic-blue);
  margin-bottom: 8px;
}

.section-heading h2 {
  font-size: 36px;
  font-weight: 800;
  letter-spacing: -0.5px;
  margin-bottom: 12px;
}

.section-sub {
  font-size: 16px;
  color: var(--text-muted);
  max-width: 640px;
  margin: 0 auto;
}

/* Workflow Steps */
.workflow-steps {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.workflow-step {
  background: var(--card-bg);
  border-radius: var(--radius-md);
  padding: 24px;
  border: 1px solid var(--border-color);
  flex: 1;
  text-align: center;
  position: relative;
}

.step-num {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--primary-navy);
  color: #fff;
  font-size: 12px;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
}

.step-icon {
  font-size: 32px;
  margin: 8px 0 12px;
}

.workflow-step h4 {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 8px;
}

.workflow-step p {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.45;
}

.workflow-connector {
  font-size: 24px;
  color: var(--text-light);
  font-weight: bold;
}

/* Feature Split Layout */
.feature-split {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 64px;
  align-items: center;
}

.feature-reverse {
  grid-template-columns: 0.9fr 1.1fr;
}

.feature-reverse .feature-content {
  order: 2;
}

.feature-reverse .feature-visual {
  order: 1;
}

.feature-lead {
  font-size: 16px;
  color: var(--text-muted);
  margin-bottom: 32px;
}

.grid-feature-items {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-bottom: 36px;
}

.feature-item {
  display: flex;
  gap: 14px;
}

.fi-icon {
  font-size: 24px;
  line-height: 1;
}

.feature-item h5 {
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 4px;
}

.feature-item p {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.4;
}

.feature-visual {
  display: flex;
  justify-content: center;
  align-items: center;
}

.feature-preview-img {
  max-width: 100%;
  height: auto;
  border-radius: var(--radius-lg);
}

.rounded-img {
  border-radius: var(--radius-lg);
  max-height: 480px;
  object-fit: cover;
}

.shadow-lg {
  box-shadow: var(--shadow-lg);
}

.cta-row {
  display: flex;
  align-items: center;
  gap: 16px;
}

.sub-text {
  font-size: 13px;
  color: var(--text-muted);
}

/* Trust Grid */
.trust-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.trust-card {
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 24px;
  text-align: left;
}

.trust-icon {
  font-size: 32px;
  margin-bottom: 14px;
}

.trust-card h4 {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 8px;
}

.trust-card p {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.5;
}

/* CTA Banner */
.cta-banner-section {
  padding: 40px 0 80px;
}

.cta-banner-card {
  background: linear-gradient(135deg, #1E3A8A 0%, #0F172A 100%);
  color: #fff;
  border-radius: var(--radius-lg);
  padding: 48px;
  text-align: center;
}

.cta-banner-card h2 {
  font-size: 32px;
  font-weight: 800;
  margin-bottom: 12px;
}

.cta-banner-card p {
  font-size: 16px;
  color: #CBD5E1;
  max-width: 600px;
  margin: 0 auto 32px;
}

.banner-buttons {
  display: flex;
  justify-content: center;
  gap: 16px;
}

/* Footer */
.site-footer {
  background: #0B0F19;
  color: #94A3B8;
  padding: 64px 0 32px;
  border-top: 1px solid #1E293B;
}

.footer-container {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 48px;
  margin-bottom: 48px;
}

.footer-col h5 {
  color: #F8FAFC;
  font-size: 14px;
  font-weight: 700;
  margin-bottom: 16px;
}

.footer-col ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-col a {
  color: #94A3B8;
  text-decoration: none;
  font-size: 13px;
  transition: color 0.15s ease;
}

.footer-col a:hover {
  color: #F8FAFC;
}

.footer-col code {
  background: #1E293B;
  padding: 2px 6px;
  border-radius: 4px;
  color: #E2E8F0;
  font-size: 12px;
}

.footer-desc {
  font-size: 13px;
  line-height: 1.5;
  margin: 14px 0 16px;
}

.footer-contact {
  font-size: 13px;
}

.footer-contact a {
  color: #38BDF8;
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-top: 1px solid #1E293B;
  padding-top: 24px;
  font-size: 12px;
}

.footer-tags {
  color: #64748B;
}

/* Mobile Responsiveness */
@media (max-width: 900px) {
  .hero-title {
    font-size: 34px;
  }
  .hero-cards-grid {
    grid-template-columns: 1fr;
  }
  .workflow-steps {
    flex-direction: column;
  }
  .workflow-connector {
    transform: rotate(90deg);
  }
  .feature-split, .feature-reverse {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .feature-reverse .feature-content, .feature-reverse .feature-visual {
    order: unset;
  }
  .grid-feature-items {
    grid-template-columns: 1fr;
  }
  .trust-grid {
    grid-template-columns: 1fr 1fr;
  }
  .footer-container {
    grid-template-columns: 1fr 1fr;
  }
  .nav-links {
    display: none;
  }
}

@media (max-width: 600px) {
  .trust-grid {
    grid-template-columns: 1fr;
  }
  .footer-container {
    grid-template-columns: 1fr;
  }
  .banner-buttons {
    flex-direction: column;
  }
  .footer-bottom {
    flex-direction: column;
    gap: 12px;
    text-align: center;
  }
}