:root {
  --vision-background: #F8F9FA;
  --vision-surface: #FFFFFF;
  --vision-accent-primary: #3A86FF;
  --vision-accent-secondary: #FFBE0B;
  --vision-text-primary: #212529;
  --vision-text-secondary: #6C757D;
  --vision-gradient: linear-gradient(135deg, #83C5BE, #3A86FF);
  --font-display: 'Raleway', sans-serif;
  --font-body: 'Lato', sans-serif;
  --border-radius-soft: 16px;
  --shadow-raised: 0 8px 16px rgba(40, 40, 80, 0.1);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  background-color: var(--vision-background);
  color: var(--vision-text-primary);
  line-height: 1.6;
  font-size: 16px;
  overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 800;
  text-transform: uppercase;
  line-height: 1.2;
}

h1 { font-size: clamp(2.5rem, 6vw, 4.5rem); }
h2 { font-size: clamp(2rem, 5vw, 2.75rem); text-align: center; margin-bottom: 4rem; }
h3 { font-size: 1.25rem; margin-bottom: 0.5rem; color: var(--vision-text-primary); }

p {
  margin-bottom: 1rem;
  max-width: 75ch;
  color: var(--vision-text-secondary);
}

a {
  color: var(--vision-accent-primary);
  text-decoration: none;
  transition: color 0.3s ease;
}

a:hover {
  color: var(--vision-accent-secondary);
}

ul {
  list-style: none;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

section, article, aside {
  padding: 10dvh 0;
}

.visionary-bounds {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

/* Header */
.ocular-header {
  background: var(--vision-surface);
  box-shadow: var(--shadow-raised);
  padding: 1rem 0;
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-flex {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.header-logo img {
  height: 40px;
}

.optic-nav ul {
  display: flex;
  gap: 2rem;
}

.optic-nav a {
  font-family: var(--font-display);
  font-weight: 700;
  text-transform: uppercase;
  color: var(--vision-text-primary);
  padding: 0.5rem 0;
  position: relative;
}

.optic-nav a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--vision-accent-primary);
  transition: width 0.3s ease;
}

.optic-nav a:hover::after {
  width: 100%;
}

.burger-checkbox, .burger-label {
  display: none;
}


/* Hero Section */
.iris-focus-area {
  min-height: 75vh;
  background: var(--vision-gradient);
  display: flex;
  align-items: center;
  color: white;
  position: relative;
  overflow: hidden;
  padding: 12dvh 0;
}

.hero-content {
  position: relative;
  z-index: 10;
}

.hero-text-block {
    max-width: 60%;
}

.iris-focus-area h1 {
  color: white;
  text-shadow: 2px 2px 4px rgba(0,0,0,0.2);
}

.iris-focus-area p {
  color: rgba(255, 255, 255, 0.9);
  font-size: 1.2rem;
}

.focus-trigger {
  display: inline-block;
  background-color: var(--vision-accent-secondary);
  color: var(--vision-text-primary);
  font-family: var(--font-display);
  text-transform: uppercase;
  font-weight: 700;
  padding: 0.8rem 2.5rem;
  border-radius: var(--border-radius-soft);
  margin-top: 1.5rem;
  transition: transform 0.3s, box-shadow 0.3s;
  box-shadow: var(--shadow-raised);
}

.focus-trigger:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 24px rgba(40,40,80,0.2);
  color: var(--vision-text-primary);
}

.decorative-shapes svg {
    position: absolute;
    opacity: 0.1;
    z-index: 1;
}
.shape1 { bottom: -50px; right: -50px; transform: rotate(45deg); }
.shape2 { top: 20%; left: 80%; transform: rotate(-30deg); }

/* Content Sections */
.content-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.content-split.reversed {
    grid-template-columns: 1fr 1fr;
}

.content-split.reversed .content-text {
    grid-column: 1;
    grid-row: 1;
}

.content-split.reversed .clipped-image-container {
    grid-column: 2;
}

.offset-image-container {
  margin-left: -4rem;
}
.offset-image-container img {
  border-radius: var(--border-radius-soft);
  box-shadow: var(--shadow-raised);
}

.clipped-image-container img {
  border-radius: var(--border-radius-soft);
  box-shadow: var(--shadow-raised);
  clip-path: circle(50% at 50% 50%);
  aspect-ratio: 1/1;
  object-fit: cover;
}

.content-text ul {
    list-style-type: none;
    padding-left: 0;
}
.content-text li {
    padding-left: 2rem;
    position: relative;
    margin-bottom: 0.75rem;
    color: var(--vision-text-secondary);
}
.content-text li::before {
    content: '✔';
    position: absolute;
    left: 0;
    color: var(--vision-accent-primary);
    font-weight: bold;
}

/* Features Section */
.optic-nerve-path {
    background: var(--vision-surface);
}
.feature-rows {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}
.lens-clarity-row {
  display: flex;
  align-items: center;
  gap: 2rem;
  padding: 1.5rem 0;
  border-bottom: 1px solid #e0e0e0;
}
.lens-clarity-row:last-child {
    border-bottom: none;
}
.feature-icon {
  background-color: var(--vision-accent-primary);
  color: white;
  width: 64px;
  height: 64px;
  border-radius: 50%;
  display: flex;
  justify-content: center;
  align-items: center;
  flex-shrink: 0;
}
.feature-icon svg {
  width: 32px;
  height: 32px;
}
.feature-text p {
    margin-bottom: 0;
}

/* CTA Strip */
.clarity-call {
  background: var(--vision-gradient);
  color: white;
  text-align: center;
  padding: 5dvh 0;
}
.clarity-call h2 { color: white; margin-bottom: 1rem; }
.clarity-call p { color: rgba(255,255,255,0.9); max-width: 60ch; margin-left: auto; margin-right: auto; }
.focus-trigger.alt-style {
  background-color: white;
  color: var(--vision-accent-primary);
}
.focus-trigger.alt-style:hover {
  background-color: var(--vision-accent-secondary);
  color: var(--vision-text-primary);
}

/* Divider */
.visual-divider {
    text-align: center;
    padding: 2rem 0;
    background-color: var(--vision-background);
}
.visual-divider svg {
    stroke: var(--vision-accent-primary);
    width: 48px;
    height: 48px;
    opacity: 0.5;
}

/* Content Section 2 (full-width strip) */
.visual-field-strip {
    background: var(--vision-surface);
}


/* Testimonials Section */
.perception-zone .visionary-bounds {
    max-width: 1400px;
}
.cornea-testimonial-grid {
  columns: 3;
  column-gap: 2rem;
}
.pupil-insight-block {
  background: var(--vision-surface);
  padding: 2rem;
  border-radius: var(--border-radius-soft);
  box-shadow: var(--shadow-raised);
  margin-bottom: 2rem;
  break-inside: avoid;
  width: 100%;
}
.pupil-insight-block blockquote p {
  font-style: italic;
  font-size: 1.1rem;
  color: var(--vision-text-primary);
  margin-bottom: 1.5rem;
}
.pupil-insight-block figcaption {
  text-align: right;
}
.author-name {
  font-weight: 700;
  display: block;
}
.star-rating {
  color: var(--vision-accent-secondary);
  font-size: 1.25rem;
}

/* Form Section */
.contact-locus {
  background: var(--vision-accent-primary);
  color: white;
}
.contact-locus h2, .contact-locus p {
    color: white;
    text-align: center;
}
.contact-locus h2 {
    margin-bottom: 1rem;
}
.contact-locus p {
    margin-bottom: 3rem;
}
.form-wrapper {
  background: var(--vision-surface);
  color: var(--vision-text-primary);
  border-radius: var(--border-radius-soft);
  padding: 3rem;
  max-width: 900px;
  margin: 0 auto;
  box-shadow: var(--shadow-raised);
}
.form-wrapper h2, .form-wrapper p {
    color: var(--vision-text-primary);
    text-align: left;
}
.form-content-split {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 3rem;
    align-items: center;
}
.contact-details h3 {
    text-transform: uppercase;
}
.contact-details p {
    color: var(--vision-text-secondary);
}
.vision-form .form-group {
  margin-bottom: 1.5rem;
}
.vision-form label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 700;
}
.vision-form input, .vision-form textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  border-radius: var(--border-radius-soft);
  border: 1px solid #ccc;
  font-family: var(--font-body);
}
.vision-form button {
  width: 100%;
}

/* FAQ Section */
.faq-spectrum {
    background: var(--vision-surface);
}
.faq-list {
  max-width: 800px;
  margin: 0 auto;
}
.faq-item {
  display: flex;
  gap: 1.5rem;
  padding: 1.5rem 0;
  border-bottom: 1px solid #e0e0e0;
}
.faq-item:last-child {
    border-bottom: none;
}
.faq-icon {
  font-size: 2rem;
  font-weight: 700;
  color: var(--vision-accent-primary);
  line-height: 1;
}
.faq-content p {
  margin-bottom: 0;
}

/* Footer */
.vision-footer {
  background-color: var(--vision-text-primary);
  color: white;
  padding: 2rem 0;
}
.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.footer-logo img {
  height: 40px;
}
.footer-nav ul {
  display: flex;
  gap: 1.5rem;
}
.footer-nav a {
  color: #ccc;
}
.footer-nav a:hover {
  color: white;
}

/* Responsive Styles */
@media (max-width: 992px) {
  .content-split, .content-split.reversed {
    grid-template-columns: 1fr;
  }
  .offset-image-container {
    margin-left: 0;
  }
  .content-split.reversed .clipped-image-container {
      grid-row: 1;
  }
  .hero-text-block {
      max-width: 80%;
  }
  .cornea-testimonial-grid {
      columns: 2;
  }
  .form-content-split {
      grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  h1 { font-size: 2rem; }
  h2 { font-size: 1.75rem; }
  .visionary-bounds { padding: 0 1rem; }

  /* Hamburger Menu */
  .header-flex {
      position: relative;
  }
  .header-logo {
      order: -1;
  }
  .optic-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    background-color: var(--vision-surface);
    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
  }
  .optic-nav ul {
    flex-direction: column;
    padding: 1rem;
    gap: 0;
  }
  .optic-nav li {
      width: 100%;
  }
  .optic-nav a {
      display: block;
      padding: 1rem;
      text-align: center;
      border-bottom: 1px solid #eee;
  }
  .optic-nav a:hover, .optic-nav a::after {
      background: none;
      width: auto;
  }
   .optic-nav li:last-child a {
      border-bottom: none;
  }
  .burger-label {
    display: flex;
    flex-direction: column;
    justify-content: space-around;
    width: 30px;
    height: 30px;
    cursor: pointer;
  }
  .burger-label span {
    width: 100%;
    height: 3px;
    background-color: var(--vision-text-primary);
    transition: all 0.3s ease;
  }
  .burger-checkbox:checked ~ .optic-nav {
    display: block;
  }
  .burger-checkbox:checked ~ .burger-label span:nth-child(1) {
    transform: rotate(45deg) translate(7px, 7px);
  }
  .burger-checkbox:checked ~ .burger-label span:nth-child(2) {
    opacity: 0;
  }
  .burger-checkbox:checked ~ .burger-label span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -7px);
  }

  /* Other sections */
  .hero-text-block {
      max-width: 100%;
      text-align: center;
  }
  .cornea-testimonial-grid {
      columns: 1;
  }
  .footer-content {
      flex-direction: column;
      gap: 2rem;
  }
  .footer-nav ul {
      flex-direction: column;
      text-align: center;
      gap: 1rem;
  }
  .lens-clarity-row {
      flex-direction: column;
      text-align: center;
      gap: 1rem;
  }
}