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

:root {
  --angio-bg-dark: #080C14;
  --angio-bg-alt: #0D1424;
  --angio-surface-card: rgba(18, 26, 43, 0.75);
  --angio-surface-glass: rgba(255, 255, 255, 0.05);
  --angio-glass-border: rgba(255, 255, 255, 0.12);
  
  --angio-pulse-glow: #00F2FE;
  --angio-accent-cyan: #4FACFE;
  --angio-accent-violet: #7F00FF;
  --angio-accent-hover: #00C6FF;
  
  --angio-text-main: #F0F4F8;
  --angio-text-muted: #A0AEC0;
  --angio-text-bright: #FFFFFF;
  
  --angio-gradient-glow: linear-gradient(135deg, #4FACFE 0%, #00F2FE 100%);
  --angio-gradient-dark: linear-gradient(180deg, rgba(8,12,20,0.85) 0%, rgba(13,20,36,0.95) 100%);
  
  --font-display: 'Montserrat', sans-serif;
  --font-body: 'Inter', sans-serif;
  
  --angio-radius-soft: 16px;
  --angio-radius-pill: 9999px;
  --angio-shadow-deep: 0 20px 40px rgba(0, 0, 0, 0.6), 0 0 25px rgba(0, 242, 254, 0.15);
  --angio-shadow-glow: 0 0 30px rgba(79, 172, 254, 0.3);
}

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

html {
  scroll-behavior: smooth;
  font-family: var(--font-body);
  background-color: var(--angio-bg-dark);
  color: var(--angio-text-main);
  font-size: 16px;
  line-height: 1.6;
}

body {
  overflow-x: hidden;
  position: relative;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Scroll Progress Bar Header */
.vascular-scroll-tracker {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  background: var(--angio-gradient-glow);
  width: 100%;
  transform-origin: 0 50%;
  z-index: 10001;
  animation: vascularProgress auto linear;
  animation-timeline: scroll(root);
}

@keyframes vascularProgress {
  0% { transform: scaleX(0); }
  100% { transform: scaleX(1); }
}

/* Header & Nav Preset D */
.vascular-header-bar {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(8, 12, 20, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--angio-glass-border);
  padding: 1.2rem 5%;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.vascular-brand-anchor {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--angio-text-bright);
}

.vascular-logo-icon {
  width: 36px;
  height: 36px;
  filter: drop-shadow(0 0 8px var(--angio-pulse-glow));
}

.vascular-brand-title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.15rem;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  background: var(--angio-gradient-glow);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.vascular-nav-box {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.vascular-nav-link {
  color: var(--angio-text-muted);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.95rem;
  transition: all 0.3s ease;
  position: relative;
}

.vascular-nav-link:hover,
.vascular-nav-link.active {
  color: var(--angio-pulse-glow);
}

.vascular-nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0%;
  height: 2px;
  background: var(--angio-pulse-glow);
  transition: width 0.3s ease;
}

.vascular-nav-link:hover::after,
.vascular-nav-link.active::after {
  width: 100%;
}

/* Mobile Nav Toggle (CSS-only) */
.vascular-menu-checkbox {
  display: none;
}

.vascular-hamburger-btn {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  z-index: 1002;
}

.vascular-hamburger-btn span {
  width: 25px;
  height: 3px;
  background-color: var(--angio-text-bright);
  border-radius: 2px;
  transition: all 0.3s ease;
}

/* Main Container Wrappers */
main {
  flex: 1;
}

/* Preset D Hero Section */
.vascular-hero-stage {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: flex-start;
  padding: 10dvh 5%;
  background: url('img/bg.webp') center/cover no-repeat;
}

.vascular-hero-overlay {
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 30% 50%, rgba(8,12,20,0.6) 0%, rgba(8,12,20,0.92) 80%);
  z-index: 1;
}

.vascular-glass-panel {
  position: relative;
  z-index: 2;
  width: 100%;
  max-width: 680px;
  background: var(--angio-surface-glass);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--angio-glass-border);
  border-radius: var(--angio-radius-soft);
  padding: 3.5rem 3rem;
  box-shadow: var(--angio-shadow-deep);
  animation: vascularFadeIn 1s ease-out;
}

@keyframes vascularFadeIn {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}

.vascular-main-heading {
  font-family: var(--font-display);
  font-size: 2.5rem;
  line-height: 1.2;
  font-weight: 800;
  text-transform: uppercase;
  color: var(--angio-text-bright);
  margin-bottom: 1.5rem;
}

.vascular-main-heading span {
  background: var(--angio-gradient-glow);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.vascular-subtext {
  font-size: 1.1rem;
  color: var(--angio-text-muted);
  margin-bottom: 2.5rem;
}

.vascular-action-trigger {
  display: inline-block;
  background: var(--angio-gradient-glow);
  color: #040810;
  font-weight: 700;
  font-family: var(--font-display);
  text-transform: uppercase;
  letter-spacing: 1px;
  padding: 1.1rem 2.5rem;
  border-radius: var(--angio-radius-pill);
  text-decoration: none;
  box-shadow: var(--angio-shadow-glow);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  border: none;
  cursor: pointer;
}

.vascular-action-trigger:hover {
  transform: translateY(-3px);
  box-shadow: 0 0 35px rgba(0, 242, 254, 0.6);
}

.vascular-action-trigger.ghost-style {
  background: transparent;
  color: var(--angio-pulse-glow);
  border: 2px solid var(--angio-pulse-glow);
  box-shadow: none;
}

.vascular-action-trigger.ghost-style:hover {
  background: rgba(0, 242, 254, 0.1);
  box-shadow: var(--angio-shadow-glow);
}

/* Split Content Section */
.vascular-split-layout {
  padding: 10dvh 5%;
  background-color: var(--angio-bg-alt);
  display: flex;
  align-items: center;
  gap: 4rem;
  view-timeline-name: --sectionView;
  view-timeline-axis: block;
  animation-timeline: --sectionView;
  animation-name: vascularSlideUp;
  animation-fill-mode: both;
}

@keyframes vascularSlideUp {
  from { opacity: 0.3; transform: translateY(40px); }
  to { opacity: 1; transform: translateY(0); }
}

.vascular-media-frame {
  flex: 1;
  min-height: 480px;
  position: relative;
  border-radius: var(--angio-radius-soft);
  overflow: hidden;
  box-shadow: var(--angio-shadow-deep);
}

.vascular-media-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.vascular-info-content {
  flex: 1;
}

.vascular-section-title {
  font-family: var(--font-display);
  font-size: 2rem;
  text-transform: uppercase;
  color: var(--angio-text-bright);
  margin-bottom: 1.5rem;
}

.vascular-paragraph {
  color: var(--angio-text-muted);
  margin-bottom: 1.5rem;
  font-size: 1.05rem;
}

.vascular-bullet-group {
  list-style: none;
  margin-top: 2rem;
}

.vascular-bullet-item {
  display: flex;
  align-items: flex-start;
  gap: 15px;
  margin-bottom: 1.2rem;
  color: var(--angio-text-main);
}

.vascular-dot-marker {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--angio-pulse-glow);
  box-shadow: 0 0 10px var(--angio-pulse-glow);
  margin-top: 6px;
  flex-shrink: 0;
}

/* Features Preset D - 3 to 4 Glassmorphism Cards */
.vascular-quad-layout {
  padding: 10dvh 5%;
  background-color: var(--angio-bg-dark);
  text-align: center;
}

.vascular-grid-flow {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.vascular-feature-box {
  background: var(--angio-surface-card);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid var(--angio-glass-border);
  border-top: 3px solid var(--angio-pulse-glow);
  border-radius: var(--angio-radius-soft);
  padding: 2.5rem 1.8rem;
  text-align: left;
  transition: all 0.3s ease;
}

.vascular-feature-box:hover {
  border-top-color: var(--angio-accent-violet);
  transform: translateY(-8px);
  box-shadow: var(--angio-shadow-deep);
}

.vascular-feature-icon {
  width: 42px;
  height: 42px;
  margin-bottom: 1.5rem;
  color: var(--angio-pulse-glow);
}

.vascular-feature-title {
  font-family: var(--font-display);
  font-size: 1.25rem;
  color: var(--angio-text-bright);
  margin-bottom: 1rem;
}

/* Timeline Section - Preset D Vertical Left Progress Line */
.vascular-process-timeline {
  padding: 10dvh 5%;
  background-color: var(--angio-bg-alt);
}

.vascular-timeline-wrapper {
  position: relative;
  max-width: 800px;
  margin: 3rem auto 0;
  padding-left: 40px;
}

.vascular-vertical-bar {
  position: absolute;
  left: 15px;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--angio-gradient-glow);
  box-shadow: 0 0 10px rgba(0, 242, 254, 0.5);
}

.vascular-timeline-step {
  position: relative;
  margin-bottom: 3.5rem;
}

.vascular-circle-badge {
  position: absolute;
  left: -40px;
  top: 0;
  transform: translateX(-50%);
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: var(--angio-bg-dark);
  border: 2px solid var(--angio-pulse-glow);
  color: var(--angio-pulse-glow);
  font-family: var(--font-display);
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 0 15px var(--angio-pulse-glow);
}

.vascular-step-content {
  background: var(--angio-surface-card);
  padding: 1.8rem;
  border-radius: var(--angio-radius-soft);
  border: 1px solid var(--angio-glass-border);
}

/* CTA Banner Strip */
.vascular-banner-strip {
  padding: 10dvh 5%;
  background: linear-gradient(180deg, var(--angio-bg-dark) 0%, var(--angio-bg-alt) 100%);
  text-align: center;
}

.vascular-banner-card {
  max-width: 900px;
  margin: 0 auto;
  padding: 4rem 2rem;
  background: var(--angio-surface-glass);
  backdrop-filter: blur(16px);
  border: 1px solid var(--angio-glass-border);
  border-radius: var(--angio-radius-soft);
}

/* Expert Accordion & Stats */
.vascular-accordion-group {
  max-width: 900px;
  margin: 3rem auto;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.vascular-accordion-item {
  background: var(--angio-surface-card);
  border: 1px solid var(--angio-glass-border);
  border-radius: var(--angio-radius-soft);
  padding: 2rem;
  position: relative;
}

.vascular-accordion-num {
  font-family: var(--font-display);
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--angio-pulse-glow);
  margin-bottom: 0.5rem;
}

.vascular-stat-cluster {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
  text-align: center;
}

.vascular-stat-card {
  background: var(--angio-surface-card);
  padding: 2.5rem 1.5rem;
  border-radius: var(--angio-radius-soft);
  border: 1px solid var(--angio-glass-border);
}

.vascular-stat-number {
  font-family: var(--font-display);
  font-size: 3rem;
  font-weight: 800;
  background: var(--angio-gradient-glow);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 0.5rem;
}

/* Wide Media Section in Expert */
.vascular-full-banner {
  position: relative;
  min-height: 450px;
  background: url('img/bg3.webp') center/cover no-repeat;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 4rem 5%;
  margin: 5dvh 0;
}

.vascular-full-banner-overlay {
  position: absolute;
  inset: 0;
  background: rgba(8, 12, 20, 0.82);
}

.vascular-full-banner-text {
  position: relative;
  z-index: 2;
  max-width: 800px;
  text-align: center;
}

/* Reserve Form Styling */
.vascular-form-box {
  background: var(--angio-surface-card);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--angio-glass-border);
  border-radius: var(--angio-radius-soft);
  padding: 3rem 2.5rem;
  box-shadow: var(--angio-shadow-deep);
  max-width: 580px;
  margin: 0 auto;
}

.vascular-field-group {
  margin-bottom: 1.5rem;
  text-align: left;
}

.vascular-field-label {
  display: block;
  margin-bottom: 0.5rem;
  font-size: 0.9rem;
  color: var(--angio-text-muted);
}

.vascular-field-input,
.vascular-field-textarea {
  width: 100%;
  padding: 1rem 1.2rem;
  background: rgba(8, 12, 20, 0.7);
  border: 1px solid var(--angio-glass-border);
  border-radius: 8px;
  color: var(--angio-text-bright);
  font-family: var(--font-body);
  font-size: 1rem;
  transition: border-color 0.3s ease;
}

.vascular-field-input:focus,
.vascular-field-textarea:focus {
  outline: none;
  border-color: var(--angio-pulse-glow);
}

.vascular-checkbox-wrapper {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 2rem;
  text-align: left;
}

.vascular-checkbox-wrapper input[type="checkbox"] {
  margin-top: 4px;
  accent-color: var(--angio-pulse-glow);
}

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

.vascular-checkbox-label a {
  color: var(--angio-pulse-glow);
  text-decoration: underline;
}

/* FAQ Block */
.vascular-faq-list {
  max-width: 800px;
  margin: 4rem auto 0;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.vascular-faq-card {
  background: var(--angio-surface-card);
  border: 1px solid var(--angio-glass-border);
  border-radius: var(--angio-radius-soft);
  padding: 1.8rem;
  text-align: left;
}

.vascular-faq-q {
  font-family: var(--font-display);
  font-size: 1.2rem;
  color: var(--angio-pulse-glow);
  margin-bottom: 0.8rem;
}

/* Legal Content (Privacy, Terms) */
.vascular-legal-stage {
  padding: 8dvh 5% 10dvh;
  max-width: 900px;
  margin: 0 auto;
  min-height: 80vh;
}

.vascular-legal-title {
  font-family: var(--font-display);
  font-size: 2.2rem;
  color: var(--angio-text-bright);
  margin-bottom: 2rem;
}

.vascular-legal-block {
  margin-bottom: 2.5rem;
}

.vascular-legal-subtitle {
  font-family: var(--font-display);
  font-size: 1.4rem;
  color: var(--angio-pulse-glow);
  margin-bottom: 1rem;
}

/* Cookie Overlay Bar */
.vascular-cookie-overlay {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: rgba(8, 12, 20, 0.95);
  backdrop-filter: blur(15px);
  border-top: 1px solid var(--angio-glass-border);
  padding: 1.5rem 5%;
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  box-shadow: 0 -10px 30px rgba(0,0,0,0.5);
}

.vascular-cookie-btns {
  display: flex;
  gap: 1rem;
}

.vascular-cookie-btn {
  padding: 0.6rem 1.5rem;
  border-radius: var(--angio-radius-pill);
  font-weight: 600;
  font-size: 0.9rem;
  cursor: pointer;
  border: none;
}

.vascular-cookie-accept {
  background: var(--angio-pulse-glow);
  color: #000;
}

.vascular-cookie-decline {
  background: transparent;
  color: var(--angio-text-muted);
  border: 1px solid var(--angio-glass-border);
}

/* Footer Section */
.vascular-footer-box {
  background-color: #04060A;
  border-top: 1px solid var(--angio-glass-border);
  padding: 4rem 5% 2rem;
  color: var(--angio-text-muted);
  font-size: 0.9rem;
}

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

.vascular-footer-nav {
  display: flex;
  gap: 2rem;
  flex-wrap: wrap;
}

.vascular-footer-link {
  color: var(--angio-text-muted);
  text-decoration: none;
  transition: color 0.3s ease;
}

.vascular-footer-link:hover {
  color: var(--angio-pulse-glow);
}

.vascular-disclaimer-card {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--angio-glass-border);
  padding: 1.2rem 1.5rem;
  border-radius: 8px;
  margin-bottom: 2rem;
  font-size: 0.85rem;
  line-height: 1.5;
  color: var(--angio-text-muted);
}

.vascular-copy-row {
  text-align: center;
  padding-top: 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
}

/* Responsive Media Queries */
@media (max-width: 900px) {
  .vascular-split-layout {
    flex-direction: column;
    padding: 6dvh 5%;
  }
  
  .vascular-media-frame {
    min-height: 300px;
    width: 100%;
  }
  
  .vascular-hamburger-btn {
    display: flex;
  }
  
  .vascular-nav-box {
    position: fixed;
    top: 65px;
    left: 0;
    right: 0;
    background: rgba(8, 12, 20, 0.98);
    backdrop-filter: blur(20px);
    flex-direction: column;
    padding: 2.5rem;
    gap: 1.5rem;
    border-bottom: 1px solid var(--angio-glass-border);
    transform: translateY(-150%);
    transition: transform 0.4s ease;
  }
  
  .vascular-menu-checkbox:checked ~ .vascular-nav-box {
    transform: translateY(0);
  }
  
  .vascular-menu-checkbox:checked ~ .vascular-hamburger-btn span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 6px);
  }
  
  .vascular-menu-checkbox:checked ~ .vascular-hamburger-btn span:nth-child(2) {
    opacity: 0;
  }
  
  .vascular-menu-checkbox:checked ~ .vascular-hamburger-btn span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -6px);
  }

  .vascular-cookie-overlay {
    flex-direction: column;
    text-align: center;
  }
}

@media (max-width: 600px) {
  .vascular-main-heading {
    font-size: 1.8rem;
  }
  
  .vascular-glass-panel {
    padding: 2rem 1.5rem;
  }
  
  .vascular-action-trigger {
    width: 100%;
    text-align: center;
  }
}