:root {
  --nutri-canvas-bg: #090e14;
  --nutri-surface-bg: #111823;
  --nutri-card-border: #1e293b;
  --nutri-accent-glow: #10b981; 
  --nutri-accent-hover: #059669;
  --nutri-text-bright: #f8fafc;
  --nutri-text-muted: #94a3b8;
  --nutri-accent-gradient: linear-gradient(135deg, #10b981 0%, #064e3b 100%);
  --font-display: 'Montserrat', sans-serif;
  --font-body: 'Poppins', sans-serif;
}

/* Base resets & animations */
html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  padding: 0;
  -webkit-font-smoothing: antialiased;
}

/* Page scroll progress bar */
@keyframes progress-grow {
  to { width: 100%; }
}
.scroll-progress-indicator {
  height: 4px;
  width: 0;
  background: var(--nutri-accent-glow);
  position: fixed;
  top: 0;
  left: 0;
  z-index: 1000;
  animation: progress-grow linear;
  animation-timeline: scroll();
}

/* Scroll-driven fade-in for sections */
@keyframes slide-up-reveal {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.vital-nutri-milieu, 
.vital-nutri-cta-banner, 
.vital-nutri-form-trust,
.vital-nutri-form-card {
  animation: slide-up-reveal linear both;
  animation-timeline: view();
  animation-range: entry 10% entry 40%;
}

/* Typography styles */
.vital-nutri-headline-1 {
  font-size: clamp(2.5rem, 5vw + 1rem, 5.5rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.03em;
  text-transform: uppercase;
  margin: 0;
}

.vital-nutri-headline-2 {
  font-size: clamp(1.8rem, 3vw + 0.5rem, 3rem);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.01em;
  text-transform: uppercase;
}

.vital-nutri-subheading {
  color: var(--nutri-text-muted);
}

.vital-nutri-prose {
  color: var(--nutri-text-muted);
  line-height: 1.8;
}

/* Layout structural system */
.vital-nutri-restrictor {
  max-width: 1200px;
  width: 100%;
}

/* Custom Navigation design */
.vital-nutri-header {
  position: sticky;
  top: 0;
  left: 0;
  z-index: 90;
  background: rgba(9, 14, 20, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--nutri-card-border);
}

.vital-nutri-brand img {
  max-height: 48px;
  width: auto;
  object-fit: contain;
}

.vital-nutri-steering ul {
  list-style-type: none;
  margin: 0;
  padding: 0;
}

.vital-nutri-steering a {
  color: var(--nutri-text-muted);
  font-family: var(--font-display);
  font-size: 0.9rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  transition: color 0.3s ease;
}

.vital-nutri-steering a:hover {
  color: var(--nutri-accent-glow);
}

.vital-nutri-steering-cta {
  background: var(--nutri-accent-gradient);
  color: var(--nutri-text-bright) !important;
  box-shadow: 0 4px 15px rgba(16, 185, 129, 0.3);
  transition: transform 0.3s ease, box-shadow 0.3s ease !important;
}

.vital-nutri-steering-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(16, 185, 129, 0.5);
}

/* Menu Toggle Logic (CSS purely) */
@media (max-width: 767px) {
  .vital-nutri-steering {
    display: none;
    width: 100%;
    position: absolute;
    top: 100%;
    left: 0;
    background: var(--nutri-surface-bg);
    border-bottom: 2px solid var(--nutri-card-border);
    padding: 1.5rem;
  }
  #vital-menu-toggle:checked ~ .vital-nutri-steering {
    display: block;
  }
  .vital-menu-trigger {
    color: var(--nutri-text-bright);
  }
}

/* Buttons */
.vital-nutri-action-trigger {
  display: inline-block;
  background: var(--nutri-accent-gradient);
  color: var(--nutri-text-bright);
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: 0.05em;
  padding: 1rem 2.5rem;
  border-radius: 999px;
  text-transform: uppercase;
  box-shadow: 0 5px 20px rgba(16, 185, 129, 0.35);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  text-align: center;
}

.vital-nutri-action-trigger:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 25px rgba(16, 185, 129, 0.55);
}

.vital-nutri-action-ghost {
  display: inline-block;
  background: transparent;
  color: var(--nutri-text-muted);
  border: 2px solid var(--nutri-card-border);
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: 0.05em;
  padding: 1rem 2.5rem;
  border-radius: 999px;
  text-transform: uppercase;
  transition: border-color 0.3s ease, color 0.3s ease, transform 0.3s ease;
  text-align: center;
}

.vital-nutri-action-ghost:hover {
  border-color: var(--nutri-accent-glow);
  color: var(--nutri-text-bright);
  transform: translateY(-2px);
}

/* Manifesto Vertical Rows */
.vital-nutri-manifesto-row {
  border-top: 1px solid var(--nutri-card-border);
  transition: background-color 0.3s ease;
}

.vital-nutri-manifesto-row:hover {
  background-color: rgba(255, 255, 255, 0.01);
}

.vital-nutri-manifesto-number {
  font-family: var(--font-display);
  font-size: 4.5rem;
  font-weight: 800;
  line-height: 1;
  color: var(--nutri-accent-glow);
  opacity: 0.15;
}

/* Testimonials typography adjustments */
.vital-nutri-quote-mark {
  font-size: 7rem;
  line-height: 0.1;
  color: var(--nutri-accent-glow);
  opacity: 0.2;
  font-family: var(--font-display);
}

/* FAQ styles */
.vital-nutri-faq-row {
  border-bottom: 1px solid var(--nutri-card-border);
}

/* Form block */
.vital-nutri-input {
  border: none;
  border-bottom: 2px solid var(--nutri-card-border);
  border-radius: 0;
  outline: none;
  font-family: var(--font-body);
  transition: border-color 0.3s ease;
}

.vital-nutri-input:focus {
  border-color: var(--nutri-accent-glow);
}

/* Footer layout */
.vital-nutri-footer {
  background: var(--nutri-canvas-bg);
  border-top: 1px solid var(--nutri-card-border);
}

.vital-nutri-footer-brand img {
  max-height: 40px;
  width: auto;
  object-fit: contain;
}

.vital-nutri-footer-steering a {
  color: var(--nutri-text-muted);
  font-size: 0.85rem;
  transition: color 0.3s ease;
}

.vital-nutri-footer-steering a:hover {
  color: var(--nutri-accent-glow);
}

/* Responsive adjustments */
@media (min-width: 768px) {
  .vital-nutri-manifesto-row:last-of-type {
    border-bottom: 1px solid var(--nutri-card-border);
  }
}