@import url('https://fonts.googleapis.com/css2?family=Montserrat:ital,wght@0,400;0,700;0,900;1,400&family=Poppins:ital,wght@0,300;0,400;0,600;1,300&display=swap');

:root {
  --vascular-bg: #fcfbf9;
  --vascular-surface: #ffffff;
  --vascular-tone: #c94a29;
  --vascular-tone-hover: #b33c1e;
  --vascular-ink: #1c2121;
  --vascular-muted: #5e6868;
  --vascular-border-color: #e6e2de;
  --vascular-gradient-soft: linear-gradient(135deg, #fcfbf9 0%, #e6e2de 100%);
  --vascular-gradient-main: linear-gradient(135deg, #c94a29 0%, #e06d4e 100%);
  --font-display: 'Montserrat', sans-serif;
  --font-body: 'Poppins', sans-serif;
  --vascular-radius: 16px;
  --vascular-shadow: 0 10px 30px rgba(28, 33, 33, 0.05);
  --vascular-shadow-hover: 0 15px 40px rgba(28, 33, 33, 0.1);
  --vascular-spacing: 10dvh;
}

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

body {
  font-family: var(--font-body);
  background-color: var(--vascular-bg);
  color: var(--vascular-ink);
  line-height: 1.6;
  overflow-x: hidden;
}

/* Scroll Progress Bar */
.vascular-progress-line {
  position: fixed;
  top: 0;
  left: 0;
  height: 4px;
  background: var(--vascular-gradient-main);
  width: 0%;
  z-index: 10000;
  animation: progress-grow linear;
  animation-timeline: scroll();
}

@keyframes progress-grow {
  to { width: 100%; }
}

/* Header & Navigation */
.cardi-header-wrap {
  position: sticky;
  top: 0;
  background-color: var(--vascular-surface);
  border-bottom: 1px solid var(--vascular-border-color);
  z-index: 999;
  transition: box-shadow 0.3s ease;
}

.cardi-header-wrap:focus-within {
  box-shadow: var(--vascular-shadow);
}

.cardi-header-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.25rem 2rem;
}

.cardi-logo-icon {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  font-family: var(--font-display);
  font-weight: 900;
  color: var(--vascular-ink);
  font-size: 1.3rem;
  letter-spacing: -0.5px;
  text-transform: uppercase;
}

.cardi-logo-icon svg {
  fill: var(--vascular-tone);
}

/* Mobile Nav Toggle */
.cardi-nav-toggle {
  display: none;
}

.cardi-nav-toggle-label {
  display: none;
  cursor: pointer;
  flex-direction: column;
  gap: 5px;
}

.cardi-nav-toggle-label span {
  display: block;
  width: 25px;
  height: 3px;
  background-color: var(--vascular-ink);
  transition: 0.3s ease;
}

.cardi-nav-links {
  display: flex;
  gap: 2rem;
  align-items: center;
}

.cardi-nav-links a {
  text-decoration: none;
  color: var(--vascular-muted);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.85rem;
  text-transform: uppercase;
  transition: color 0.3s ease;
}

.cardi-nav-links a:hover,
.cardi-nav-links a.active {
  color: var(--vascular-tone);
}

.cardi-nav-cta {
  background-color: var(--vascular-tone);
  color: #ffffff !important;
  padding: 0.75rem 1.5rem;
  border-radius: var(--vascular-radius);
  transition: background-color 0.3s ease, transform 0.2s ease !important;
}

.cardi-nav-cta:hover {
  background-color: var(--vascular-tone-hover);
  transform: translateY(-2px);
}

/* Announcement Bar */
.cardi-announcement-strip {
  background-color: var(--vascular-tone);
  color: #ffffff;
  text-align: center;
  padding: 0.5rem 1rem;
  font-size: 0.85rem;
  font-weight: 600;
}

.cardi-announcement-strip a {
  color: #ffffff;
  text-decoration: underline;
  margin-left: 5px;
}

/* Scroll-Driven Entry Animation (CSS Only) */
.reveal-on-scroll {
  animation: fade-slide-up both;
  animation-timeline: view();
  animation-range: entry 10% entry 30%;
}

@keyframes fade-slide-up {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Hero Split Layout */
.cardi-hero-split {
  display: flex;
  min-height: 80vh;
  max-width: 1440px;
  margin: 0 auto;
  align-items: stretch;
}

.cardi-hero-content {
  flex: 55;
  background-color: var(--vascular-surface);
  padding: 4rem 3rem 4rem 4rem;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: flex-start;
}

.cardi-tag-label {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.8rem;
  color: var(--vascular-tone);
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: 1rem;
}

.cardi-hero-content h1 {
  font-family: var(--font-display);
  font-size: 3rem;
  font-weight: 900;
  line-height: 1.15;
  color: var(--vascular-ink);
  margin-bottom: 1.5rem;
  text-transform: uppercase;
}

.cardi-hero-content p {
  font-size: 1.1rem;
  color: var(--vascular-muted);
  margin-bottom: 2.5rem;
  max-width: 580px;
}

.cardi-action-btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background-color: var(--vascular-tone);
  color: #ffffff;
  text-decoration: none;
  font-family: var(--font-display);
  font-weight: 700;
  text-transform: uppercase;
  font-size: 0.9rem;
  padding: 1.1rem 2.22rem;
  border-radius: var(--vascular-radius);
  transition: all 0.3s ease;
  border: none;
  cursor: pointer;
}

.cardi-action-btn:hover {
  background-color: var(--vascular-tone-hover);
  transform: translateY(-3px);
  box-shadow: 0 8px 20px rgba(201, 74, 41, 0.2);
}

.cardi-hero-image {
  flex: 45;
  min-height: 400px;
  position: relative;
}

.cardi-hero-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

/* Journal Split Section */
.cardi-banner-strip {
  width: 100%;
  height: 45vh;
  min-height: 300px;
}

.cardi-banner-strip img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.cardi-journal-row {
  max-width: 1200px;
  margin: 0 auto;
  padding: var(--vascular-spacing) 2rem;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 3rem;
}

.cardi-journal-column {
  border-top: 3px solid var(--vascular-tone);
  padding-top: 2rem;
}

.cardi-journal-column h3 {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 900;
  margin-bottom: 1rem;
  text-transform: uppercase;
  color: var(--vascular-ink);
}

.cardi-journal-column p {
  color: var(--vascular-muted);
  font-size: 0.95rem;
}

/* Masonry Features Section */
.cardi-masonry-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: var(--vascular-spacing) 2rem;
}

.cardi-section-header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 4rem auto;
}

.cardi-section-header h2 {
  font-family: var(--font-display);
  font-size: 2.2rem;
  font-weight: 900;
  text-transform: uppercase;
  margin-bottom: 1rem;
}

.cardi-section-header p {
  color: var(--vascular-muted);
}

.cardi-masonry-grid {
  columns: 3 300px;
  column-gap: 1.5rem;
  width: 100%;
}

.cardi-masonry-item {
  background-color: var(--vascular-surface);
  border-radius: var(--vascular-radius);
  padding: 2.5rem;
  margin-bottom: 1.5rem;
  break-inside: avoid;
  border: 1px solid var(--vascular-border-color);
  box-shadow: var(--vascular-shadow);
  transition: all 0.3s ease;
}

.cardi-masonry-item:hover {
  transform: translateY(-5px);
  box-shadow: var(--vascular-shadow-hover);
  border-color: var(--vascular-tone);
}

.cardi-masonry-icon {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background-color: rgba(201, 74, 41, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.5rem;
}

.cardi-masonry-icon svg {
  fill: var(--vascular-tone);
  width: 24px;
  height: 24px;
}

.cardi-masonry-item h4 {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 700;
  text-transform: uppercase;
  margin-bottom: 1rem;
}

.cardi-masonry-item p {
  color: var(--vascular-muted);
  font-size: 0.95rem;
}

/* Horizontal Stepper Progress-Track */
.cardi-stepper-bg {
  background-color: var(--vascular-surface);
  border-top: 1px solid var(--vascular-border-color);
  border-bottom: 1px solid var(--vascular-border-color);
}

.cardi-stepper-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: var(--vascular-spacing) 2rem;
}

.cardi-stepper-track {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-top: 4rem;
  position: relative;
  gap: 2rem;
}

.cardi-stepper-step {
  flex: 1;
  text-align: center;
  position: relative;
  z-index: 2;
}

.cardi-stepper-circle {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background-color: var(--vascular-bg);
  border: 2px dashed var(--vascular-tone);
  color: var(--vascular-ink);
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 1.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1.5rem auto;
  transition: all 0.3s ease;
}

.cardi-stepper-step.active .cardi-stepper-circle {
  background-color: var(--vascular-tone);
  border-color: var(--vascular-tone);
  color: #ffffff;
  box-shadow: 0 0 20px rgba(201, 74, 41, 0.3);
}

.cardi-stepper-step h4 {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 700;
  text-transform: uppercase;
  margin-bottom: 0.5rem;
}

.cardi-stepper-step p {
  color: var(--vascular-muted);
  font-size: 0.9rem;
  max-width: 250px;
  margin: 0 auto;
}

/* Stepper Connector Lines */
.cardi-stepper-connector {
  position: absolute;
  top: 30px;
  left: 10%;
  right: 10%;
  height: 2px;
  border-top: 2px dashed var(--vascular-border-color);
  z-index: 1;
}

/* CTA Highlight Section */
.cardi-cta-accent-strip {
  background-color: var(--vascular-tone);
  color: #ffffff;
  padding: var(--vascular-spacing) 2rem;
  text-align: center;
}

.cardi-cta-inside {
  max-width: 800px;
  margin: 0 auto;
}

.cardi-cta-inside h2 {
  font-family: var(--font-display);
  font-size: 2.8rem;
  font-weight: 900;
  text-transform: uppercase;
  line-height: 1.2;
  margin-bottom: 1.5rem;
}

.cardi-cta-inside p {
  font-size: 1.1rem;
  margin-bottom: 2.5rem;
  opacity: 0.9;
}

.cardi-action-btn-inverted {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background-color: #ffffff;
  color: var(--vascular-tone);
  text-decoration: none;
  font-family: var(--font-display);
  font-weight: 700;
  text-transform: uppercase;
  font-size: 0.9rem;
  padding: 1.1rem 2.22rem;
  border-radius: var(--vascular-radius);
  transition: all 0.3s ease;
  border: none;
  cursor: pointer;
}

.cardi-action-btn-inverted:hover {
  background-color: var(--vascular-bg);
  transform: translateY(-3px);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.1);
}

/* Cookie Box Banner */
.cardi-cookie-box {
  position: fixed;
  bottom: 20px;
  left: 20px;
  right: 20px;
  max-width: 500px;
  background-color: var(--vascular-surface);
  border: 1px solid var(--vascular-border-color);
  border-radius: var(--vascular-radius);
  padding: 1.5rem;
  box-shadow: 0 15px 40px rgba(0, 0, 0, 0.15);
  z-index: 9999;
  display: none;
  animation: slide-up-cookie 0.5s ease both;
}

@keyframes slide-up-cookie {
  from { transform: translateY(100px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

.cardi-cookie-box p {
  font-size: 0.85rem;
  color: var(--vascular-muted);
  margin-bottom: 1rem;
}

.cardi-cookie-btns {
  display: flex;
  gap: 10px;
}

.cardi-cookie-btn {
  padding: 0.5rem 1.25rem;
  border-radius: 8px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.8rem;
  cursor: pointer;
  border: none;
  text-transform: uppercase;
}

.cardi-cookie-btn-accept {
  background-color: var(--vascular-tone);
  color: #ffffff;
}

.cardi-cookie-btn-decline {
  background-color: var(--vascular-bg);
  color: var(--vascular-muted);
  border: 1px solid var(--vascular-border-color);
}

/* Expert Page Layout */
.cardi-expert-split {
  display: flex;
  align-items: center;
  max-width: 1200px;
  margin: 0 auto;
  padding: var(--vascular-spacing) 2rem;
  gap: 4rem;
}

.cardi-expert-image {
  flex: 1;
  border-radius: var(--vascular-radius);
  overflow: hidden;
  box-shadow: var(--vascular-shadow);
  height: 500px;
}

.cardi-expert-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.cardi-expert-bio {
  flex: 1;
}

.cardi-expert-bio h2 {
  font-family: var(--font-display);
  font-size: 2.5rem;
  font-weight: 900;
  text-transform: uppercase;
  margin-bottom: 1.5rem;
}

.cardi-expert-bio h3 {
  font-family: var(--font-display);
  font-size: 1.1rem;
  color: var(--vascular-tone);
  text-transform: uppercase;
  margin-bottom: 1.5rem;
  letter-spacing: 1px;
}

.cardi-expert-bio p {
  color: var(--vascular-muted);
  margin-bottom: 1.5rem;
}

/* Stats Row */
.cardi-stats-bg {
  background-color: var(--vascular-surface);
  border-top: 1px solid var(--vascular-border-color);
  border-bottom: 1px solid var(--vascular-border-color);
}

.cardi-stats-row {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  padding: 4rem 2rem;
  gap: 2rem;
}

.cardi-stats-box {
  text-align: center;
}

.cardi-stats-number {
  font-family: var(--font-display);
  font-size: 3rem;
  font-weight: 900;
  color: var(--vascular-tone);
  margin-bottom: 0.5rem;
}

.cardi-stats-label {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.85rem;
  color: var(--vascular-ink);
  text-transform: uppercase;
  letter-spacing: 1px;
}

/* CSS Only Accordions */
.cardi-accordion-block {
  max-width: 800px;
  margin: 0 auto;
  padding: var(--vascular-spacing) 2rem;
}

.cardi-accordion-item {
  background-color: var(--vascular-surface);
  border: 1px solid var(--vascular-border-color);
  border-radius: var(--vascular-radius);
  margin-bottom: 1rem;
  overflow: hidden;
}

.cardi-accordion-header {
  padding: 1.5rem;
  font-family: var(--font-display);
  font-weight: 700;
  text-transform: uppercase;
  font-size: 1rem;
  color: var(--vascular-ink);
  background-color: var(--vascular-surface);
  border: none;
  width: 100%;
  text-align: left;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.cardi-accordion-content {
  padding: 0 1.5rem 1.5rem 1.5rem;
  color: var(--vascular-muted);
  font-size: 0.95rem;
}

/* Reserve Page Split Grid */
.cardi-reserve-split {
  max-width: 1200px;
  margin: 0 auto;
  padding: var(--vascular-spacing) 2rem;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
}

.cardi-info-side {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.cardi-info-side h2 {
  font-family: var(--font-display);
  font-size: 2.2rem;
  font-weight: 900;
  text-transform: uppercase;
}

.cardi-info-card {
  background-color: var(--vascular-surface);
  border: 1px solid var(--vascular-border-color);
  border-radius: var(--vascular-radius);
  padding: 2rem;
  box-shadow: var(--vascular-shadow);
}

.cardi-info-card h4 {
  font-family: var(--font-display);
  font-weight: 700;
  text-transform: uppercase;
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 10px;
}

.cardi-info-card h4 svg {
  fill: var(--vascular-tone);
  width: 20px;
  height: 20px;
}

.cardi-info-card ul {
  list-style: none;
  padding: 0;
}

.cardi-info-card li {
  position: relative;
  padding-left: 25px;
  margin-bottom: 0.75rem;
  font-size: 0.95rem;
  color: var(--vascular-muted);
}

.cardi-info-card li::before {
  content: "•";
  color: var(--vascular-tone);
  font-size: 1.5rem;
  position: absolute;
  left: 5px;
  top: -3px;
}

.cardi-form-side {
  background-color: var(--vascular-surface);
  border: 1px solid var(--vascular-border-color);
  border-radius: var(--vascular-radius);
  padding: 3rem;
  box-shadow: var(--vascular-shadow);
}

.cardi-form-side h3 {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 900;
  text-transform: uppercase;
  margin-bottom: 2rem;
}

.cardi-form-group {
  margin-bottom: 1.5rem;
}

.cardi-form-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
  text-transform: uppercase;
}

.cardi-form-group input[type="text"],
.cardi-form-group input[type="tel"],
.cardi-form-group input[type="email"],
.cardi-form-group textarea {
  width: 100%;
  padding: 1rem;
  border-radius: 8px;
  border: 1px solid var(--vascular-border-color);
  background-color: var(--vascular-bg);
  font-family: var(--font-body);
  font-size: 0.95rem;
  color: var(--vascular-ink);
  transition: border-color 0.3s ease;
}

.cardi-form-group input:focus,
.cardi-form-group textarea:focus {
  border-color: var(--vascular-tone);
  outline: none;
}

.cardi-checkbox-wrap {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin-bottom: 2rem;
}

.cardi-checkbox-wrap input[type="checkbox"] {
  width: 18px;
  height: 18px;
  accent-color: var(--vascular-tone);
  margin-top: 3px;
}

.cardi-checkbox-wrap label {
  font-size: 0.85rem;
  color: var(--vascular-muted);
}

.cardi-checkbox-wrap a {
  color: var(--vascular-tone);
}

/* FAQ Accordions Grid (reserve.html) */
.cardi-faq-accordions {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem var(--vascular-spacing) 2rem;
}

.cardi-faq-heading {
  text-align: center;
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 900;
  text-transform: uppercase;
  margin-bottom: 3rem;
}

/* Footer Section */
.cardi-footer-wrap {
  background-color: var(--vascular-surface);
  border-top: 1px solid var(--vascular-border-color);
  padding: 5rem 2rem 3rem 2rem;
}

.cardi-footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 4rem;
  margin-bottom: 4rem;
}

.cardi-footer-about h3 {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 900;
  text-transform: uppercase;
  margin-bottom: 1.5rem;
}

.cardi-footer-about p {
  color: var(--vascular-muted);
  font-size: 0.9rem;
  max-width: 400px;
}

.cardi-footer-links h4 {
  font-family: var(--font-display);
  font-weight: 700;
  text-transform: uppercase;
  font-size: 0.9rem;
  margin-bottom: 1.5rem;
}

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

.cardi-footer-links li {
  margin-bottom: 0.75rem;
}

.cardi-footer-links a {
  text-decoration: none;
  color: var(--vascular-muted);
  font-size: 0.9rem;
  transition: color 0.3s ease;
}

.cardi-footer-links a:hover {
  color: var(--vascular-tone);
}

.cardi-disclaimer-block {
  border-top: 1px solid var(--vascular-border-color);
  padding-top: 2rem;
  text-align: center;
}

.cardi-disclaimer-text {
  font-size: 0.8rem;
  color: var(--vascular-muted);
  margin-bottom: 1rem;
  max-width: 900px;
  margin: 0 auto 1.5rem auto;
}

.cardi-copyright {
  font-size: 0.8rem;
  color: var(--vascular-muted);
}

/* Static legal layout pages */
.cardi-legal-container {
  max-width: 900px;
  margin: 0 auto;
  padding: var(--vascular-spacing) 2rem;
  min-height: 100vh;
}

.cardi-legal-container h1 {
  font-family: var(--font-display);
  font-size: 2.5rem;
  font-weight: 900;
  text-transform: uppercase;
  margin-bottom: 2rem;
}

.cardi-legal-container h2 {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  text-transform: uppercase;
  margin-top: 2.5rem;
  margin-bottom: 1rem;
}

.cardi-legal-container p {
  color: var(--vascular-muted);
  margin-bottom: 1.5rem;
}

/* Thank You Page Layout */
.cardi-thank-pane {
  max-width: 800px;
  margin: var(--vascular-spacing) auto;
  text-align: center;
  padding: 4rem 2rem;
}

.cardi-thank-pane h1 {
  font-family: var(--font-display);
  font-size: 3.5rem;
  font-weight: 900;
  text-transform: uppercase;
  color: var(--vascular-ink);
  margin-bottom: 1.5rem;
}

.cardi-thank-pane p {
  font-size: 1.2rem;
  color: var(--vascular-muted);
  margin-bottom: 3rem;
}

.cardi-thank-image {
  max-width: 100%;
  height: auto;
  border-radius: var(--vascular-radius);
  box-shadow: var(--vascular-shadow);
  margin-bottom: 3rem;
}

/* Media Queries */
@media (max-width: 991px) {
  :root {
    --vascular-spacing: 7dvh;
  }
  
  .cardi-hero-split {
    flex-direction: column;
  }
  
  .cardi-hero-content {
    padding: 3rem 2rem;
    flex: none;
  }
  
  .cardi-hero-content h1 {
    font-size: 2.2rem;
  }
  
  .cardi-hero-image {
    height: 350px;
    flex: none;
  }
  
  .cardi-journal-row {
    grid-template-columns: 1fr;
    gap: 2rem;
    padding: var(--vascular-spacing) 2rem;
  }
  
  .cardi-masonry-grid {
    columns: 1 100%;
  }
  
  .cardi-stepper-track {
    flex-direction: column;
    gap: 3rem;
  }
  
  .cardi-stepper-connector {
    display: none;
  }
  
  .cardi-expert-split {
    flex-direction: column;
    gap: 2rem;
  }
  
  .cardi-expert-image {
    width: 100%;
    height: 350px;
  }
  
  .cardi-stats-row {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .cardi-reserve-split {
    grid-template-columns: 1fr;
    gap: 3rem;
  }
  
  .cardi-footer-inner {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
}

@media (max-width: 768px) {
  /* Hamburger Menu implementation CSS-only */
  .cardi-nav-toggle-label {
    display: flex;
  }
  
  .cardi-nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: var(--vascular-surface);
    flex-direction: column;
    padding: 2rem;
    border-bottom: 1px solid var(--vascular-border-color);
    box-shadow: var(--vascular-shadow);
    gap: 1.5rem;
  }
  
  .cardi-nav-toggle:checked ~ .cardi-nav-links {
    display: flex;
  }
  
  /* Hamburger icon morph when checked */
  .cardi-nav-toggle:checked ~ .cardi-nav-toggle-label span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
  }
  
  .cardi-nav-toggle:checked ~ .cardi-nav-toggle-label span:nth-child(2) {
    opacity: 0;
  }
  
  .cardi-nav-toggle:checked ~ .cardi-nav-toggle-label span:nth-child(3) {
    transform: rotate(-45deg) translate(6px, -6px);
  }
  
  .cardi-stats-row {
    grid-template-columns: 1fr;
  }
}