/* THEMATIC VARIABLE DEFINITIONS (Topic: Vision Nutrients - Carrot Orange, Leafy Green, Blueberry Dark Ink, Ivory light BG) */
:root {
  --vision-iris-bg: #FAF9F5;
  --vision-iris-surface: #FFFFFF;
  --vision-iris-tint: #FFF4E6;
  --vision-iris-leafy: #2E7D32;
  --vision-iris-carrot: #E65100;
  --vision-iris-ink: #101B2B;
  --vision-iris-muted: #4A5D75;
  --vision-iris-border: #E8E6DE;
  --vision-iris-shadow: rgba(16, 27, 43, 0.08);
  --vision-iris-dark-accent: #0D1521;
  
  --font-display: 'Nunito', sans-serif;
  --font-body: 'Poppins', sans-serif;

  /* Style variables mapped dynamically */
  --border-soft: 16px;
  --border-pill: 999px;
  --shadow-raised: 0 10px 25px -5px var(--vision-iris-shadow), 0 8px 10px -6px var(--vision-iris-shadow);
}

/* GENERAL BASE ADJUSTMENTS */
body {
  font-size: 16px;
  line-height: 1.6;
}

/* SCROLL PROGRESS ANCHOR (Page progression progress bar) */
@keyframes progress-grow { 
  to { width: 100%; } 
}
.optic-scroll-loader {
  position: fixed;
  top: 0;
  left: 0;
  height: 4px;
  background: var(--vision-iris-carrot);
  z-index: 9999;
  width: 0;
  animation: progress-grow linear;
  animation-timeline: scroll();
}

/* SCROLL ENTER VIEWPORT TRANSITION ANCHORS */
@keyframes slide-up {
  from { 
    opacity: 0; 
    transform: translateY(40px); 
  }
  to { 
    opacity: 1; 
    transform: none; 
  }
}

/* CSS-Only entry rendering triggers */
.optic-info-block-one,
.optic-visual-features,
.optic-info-block-two,
.optic-testimonials-panel,
.optic-sign-up-area,
.optic-questions-board {
  animation: slide-up 0.8s ease-out both;
  animation-timeline: view();
  animation-range: entry 5% entry 30%;
}

/* SECTION PADDINGS as strictly stipulated */
.optic-info-block-one,
.optic-visual-features,
.optic-info-block-two,
.optic-testimonials-panel,
.optic-sign-up-area,
.optic-questions-board {
  padding-top: 10dvh;
  padding-bottom: 10dvh;
}

/* HEADER COMPONENT STYLING */
.optic-hub-header {
  position: sticky;
  top: 0;
  z-index: 999;
  background: var(--vision-iris-surface);
  border-bottom: 1px solid var(--vision-iris-border);
  box-shadow: 0 4px 10px var(--vision-iris-shadow);
}
.optic-hub-nav-container {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.5rem;
}
.optic-main-nav {
  order: 1; /* Navigation on the left side */
}
.optic-brand-logo {
  order: 2; /* Brand Logo on the right side */
  max-width: 130px;
}
.optic-brand-logo img {
  display: block;
  max-height: 48px;
  object-fit: contain;
}
.optic-menu-checkbox {
  display: none;
}
.optic-hamburger-icon {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  z-index: 1001;
}
.optic-hamburger-icon span {
  width: 25px;
  height: 3px;
  background-color: var(--vision-iris-ink);
  border-radius: 2px;
  transition: all 0.3s ease-in-out;
}
.optic-nav-list {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  list-style: none;
  margin: 0;
  padding: 0;
}
.optic-nav-item a {
  font-family: var(--font-body);
  font-weight: 500;
  color: var(--vision-iris-muted);
  transition: color 0.3s;
  font-size: 0.95rem;
}
.optic-nav-item a:hover {
  color: var(--vision-iris-carrot);
}
.optic-nav-cta {
  background-color: var(--vision-iris-leafy);
  color: #fff !important;
  padding: 0.5rem 1.25rem;
  border-radius: var(--border-pill);
  transition: background-color 0.3s, transform 0.2s !important;
}
.optic-nav-cta:hover {
  background-color: #1e5221;
  transform: translateY(-1px);
}

/* RESPONSIVE HAMBURGER NAVIGATION CODE */
@media (max-width: 768px) {
  .optic-hamburger-icon {
    display: flex;
    order: 1;
  }
  .optic-main-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    background-color: var(--vision-iris-surface);
    border-bottom: 1px solid var(--vision-iris-border);
    padding: 1.5rem;
    box-shadow: 0 8px 16px var(--vision-iris-shadow);
  }
  .optic-menu-checkbox:checked ~ .optic-main-nav {
    display: block;
  }
  .optic-nav-list {
    flex-direction: column;
    align-items: flex-start;
    gap: 1.25rem;
  }
  .optic-brand-logo {
    order: 2;
  }
}

/* HERO SECTION CUSTOM DESIGNS */
.optic-retina-hero {
  position: relative;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  height: 75vh;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  z-index: 10;
}
.optic-hero-h1 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 1rem;
  max-width: 900px;
}
.optic-hero-lead {
  font-size: clamp(1rem, 2vw, 1.2rem);
  line-height: 1.6;
  opacity: 0.9;
  margin-bottom: 2rem;
}
.optic-pill-cta-btn {
  display: inline-block;
  background: var(--vision-iris-leafy);
  color: #fff;
  font-family: var(--font-display);
  font-weight: 700;
  padding: 1rem 2.25rem;
  border-radius: var(--border-pill);
  box-shadow: var(--shadow-raised);
  transition: transform 0.3s ease, background 0.3s ease;
  cursor: pointer;
}
.optic-pill-cta-btn:hover {
  transform: translateY(-3px);
  background: var(--vision-iris-carrot);
}
.optic-scroll-down-indicator {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  color: rgba(255, 255, 255, 0.7);
  transition: color 0.3s;
}
.optic-scroll-down-indicator:hover {
  color: var(--vision-iris-carrot);
}
.optic-bounce-arrow {
  width: 32px;
  height: 32px;
  animation: bounce 2s infinite;
}
@keyframes bounce {
  0%, 20%, 50%, 80%, 100% { transform: translateY(0); }
  40% { transform: translateY(-10px); }
  60% { transform: translateY(-5px); }
}

/* CONTENT BLOCKS SPECIFICATIONS */
.optic-section-h2 {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 4vw, 2.25rem);
  font-weight: 700;
  color: var(--vision-iris-ink);
  line-height: 1.25;
  margin-bottom: 1.25rem;
}
.optic-body-desc {
  font-size: 1rem;
  color: var(--vision-iris-muted);
  margin-bottom: 1.25rem;
}
.optic-visual-media {
  border-radius: var(--border-soft);
  box-shadow: var(--shadow-raised);
  object-fit: cover;
  max-height: 380px;
}
.optic-bullet-icon-box {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  flex-shrink: 0;
}
.optic-bullet-svg {
  width: 16px;
  height: 16px;
}

/* DECORATIVE DIVIDER STRIP */
.optic-decorative-divider {
  padding: 1.5rem 0;
  background-color: var(--vision-iris-tint);
  color: var(--vision-iris-carrot);
}
.optic-divider-line {
  height: 2px;
  background-color: rgba(230, 81, 0, 0.2);
}
.optic-divider-icon {
  width: 20px;
  height: 20px;
  color: var(--vision-iris-carrot);
}

/* FEATURES SECTION PRESET CARDS */
.optic-section-sub {
  color: var(--vision-iris-muted);
  font-size: clamp(1rem, 1.5vw, 1.15rem);
  max-width: 650px;
  margin: 0.5rem auto 0 auto;
}
.optic-feature-card {
  background: var(--vision-iris-surface);
  border: 1px solid var(--vision-iris-border);
  border-radius: var(--border-soft);
  padding: 2.25rem;
  box-shadow: var(--shadow-raised);
  transition: transform 0.3s cubic-bezier(0.25, 1, 0.5, 1), box-shadow 0.3s ease;
}
.optic-feature-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 15px 30px rgba(16, 27, 43, 0.12);
}
.optic-card-icon-wrap {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.5rem;
}
.optic-feat-svg {
  width: 26px;
  height: 26px;
}
.optic-card-h3 {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--vision-iris-ink);
  margin-bottom: 0.75rem;
}
.optic-card-p {
  color: var(--vision-iris-muted);
  font-size: 0.95rem;
  line-height: 1.55;
}

/* CTA BANNER STRIP */
.optic-cta-banner-strip {
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  background-attachment: fixed;
  padding: 6rem 0;
  color: #fff;
}
.optic-cta-banner-h2 {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 800;
  line-height: 1.25;
  margin-bottom: 1rem;
}
.optic-cta-banner-p {
  font-size: clamp(1rem, 1.5vw, 1.15rem);
  opacity: 0.9;
  margin-bottom: 2rem;
}

/* TESTIMONIALS PANEL STYLES */
.optic-review-card {
  background: var(--vision-iris-surface);
  border: 1px solid var(--vision-iris-border);
  border-radius: var(--border-soft);
  padding: 2rem;
  box-shadow: var(--shadow-raised);
  display: flex;
  flex-direction: column;
}
.optic-review-text {
  font-size: 0.95rem;
  color: var(--vision-iris-muted);
  font-style: italic;
  line-height: 1.6;
  margin: 1rem 0;
  flex-grow: 1;
}
.optic-review-author {
  font-family: var(--font-display);
  font-weight: 700;
  color: var(--vision-iris-ink);
  font-style: normal;
  font-size: 0.9rem;
}

/* FORM / CONTACT ZONE */
.optic-form-box-wrapped {
  border-radius: var(--border-soft);
}
.optic-field-label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--vision-iris-ink);
}
.optic-field-input,
.optic-field-textarea {
  width: 100%;
  border: 1px solid var(--vision-iris-border);
  padding: 0.75rem 1rem;
  font-size: 0.95rem;
  border-radius: 8px;
  color: var(--vision-iris-ink);
  transition: border-color 0.3s;
}
.optic-field-input:focus,
.optic-field-textarea:focus {
  outline: none;
  border-color: var(--vision-iris-carrot);
}
.optic-form-submit-btn {
  background: var(--vision-iris-carrot);
  border-radius: var(--border-pill);
  transition: background 0.3s, transform 0.2s;
}
.optic-form-submit-btn:hover {
  background: var(--vision-iris-leafy);
  transform: translateY(-2px);
}

/* FAQ COMPONENT WITH OPEN ACCORDION DETAILS/SUMMARY HTML5 */
.optic-faq-list {
  max-width: 750px;
  margin: 0 auto;
}
.optic-faq-item {
  background: var(--vision-iris-surface);
  border: 1px solid var(--vision-iris-border);
  border-radius: var(--border-soft);
  overflow: hidden;
  box-shadow: var(--shadow-raised);
  transition: border-color 0.3s;
}
.optic-faq-item[open] {
  border-color: var(--vision-iris-carrot);
}
.optic-faq-trigger {
  padding: 1.25rem 1.5rem;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--vision-iris-ink);
  cursor: pointer;
  list-style: none; /* Hide default marker */
  position: relative;
  outline: none;
}
.optic-faq-trigger::-webkit-details-marker {
  display: none; /* Hide Safari default marker */
}
.optic-faq-panel {
  padding: 0 1.5rem 1.25rem 1.5rem;
  border-top: 1px solid var(--vision-iris-border);
  color: var(--vision-iris-muted);
  font-size: 0.95rem;
  line-height: 1.6;
}

/* FOOTER COMPONENT DESIGNS */
.optic-site-bottom {
  padding: 4rem 0 2rem 0;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}
.optic-footer-brand img {
  max-height: 40px;
  object-fit: contain;
}