:root {
  --vision-shield-bg: #f9fbfb;
  --vision-shield-surface: #ffffff;
  --vision-shield-brand: #0eb194;
  --vision-shield-brand-hover: #0b9078;
  --vision-shield-ink: #1a2d29;
  --vision-shield-muted: #647a75;
  --vision-shield-bright: #ff8243;
  --vision-shield-gradient: linear-gradient(135deg, #0eb194 0%, #036b5a 100%);
  --vision-shield-grad-accent: linear-gradient(135deg, #ff8243 0%, #e0530d 100%);
  --vision-shield-card-shadow: 0 10px 30px rgba(14, 177, 148, 0.08);
  --vision-shield-heavy-shadow: 0 15px 40px rgba(3, 107, 90, 0.15);
  
  --font-display: 'Montserrat', sans-serif;
  --font-body: 'Poppins', sans-serif;
}

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

@keyframes slide-up {
  from {
    opacity: 0;
    transform: translateY(40px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

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

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

h1, h2, h3, h4, .optic-header-text {
  font-family: var(--font-display);
  text-transform: uppercase;
  font-weight: 700;
  letter-spacing: 0.5px;
}

a {
  text-decoration: none;
  color: inherit;
  transition: all 0.3s ease;
}

/* Header & Progress Bar */
.scroll-progress {
  height: 3px;
  width: 0;
  background: var(--vision-shield-grad-accent);
  position: fixed;
  top: 0;
  left: 0;
  z-index: 10000;
  animation: progress-grow linear;
  animation-timeline: scroll();
}

.pupil-header {
  position: sticky;
  top: 0;
  background-color: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid rgba(14, 177, 148, 0.1);
  z-index: 999;
}

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

.pupil-header-shell {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 80px;
}

.optic-brand-anchor {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 1.3rem;
  color: var(--vision-shield-ink);
}

.optic-brand-anchor svg {
  fill: var(--vision-shield-brand);
}

.visual-linkbar {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.optic-guide-list {
  display: flex;
  gap: 2rem;
  list-style: none;
}

.optic-item-link {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--vision-shield-muted);
}

.optic-item-link:hover, .optic-item-link.is-active {
  color: var(--vision-shield-brand);
}

/* Hamburger Menu CSS-Only */
.hamburger-toggle {
  display: none;
}

.hamburger-icon {
  display: none;
  cursor: pointer;
  flex-direction: column;
  gap: 5px;
  z-index: 1001;
}

.hamburger-icon span {
  display: block;
  width: 25px;
  height: 3px;
  background-color: var(--vision-shield-ink);
  transition: all 0.3s;
}

/* Button */
.retina-push-node {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 1rem 2.5rem;
  background: var(--vision-shield-gradient);
  color: #fff;
  font-family: var(--font-display);
  font-weight: 700;
  border-radius: 16px;
  box-shadow: var(--vision-shield-heavy-shadow);
  border: none;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.retina-push-node:hover {
  transform: translateY(-2px);
  box-shadow: 0 20px 45px rgba(3, 107, 90, 0.25);
}

.retina-push-node.alt-node {
  background: var(--vision-shield-grad-accent);
}

/* Hero Section */
.eye-focus-jumbo {
  position: relative;
  min-height: calc(100vh - 80px);
  display: flex;
  align-items: center;
  background-size: cover;
  background-position: center;
  color: #ffffff;
  padding: 10dvh 0;
}

.eye-focus-jumbo::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(90deg, rgba(13, 28, 25, 0.9) 0%, rgba(13, 28, 25, 0.5) 100%);
  z-index: 1;
}

.eye-focus-jumbo .pupil-bound {
  position: relative;
  z-index: 2;
  width: 100%;
}

.eye-jumbo-content {
  max-width: 650px;
}

.optic-header-text.jumbo-title {
  font-size: clamp(2.2rem, 5vw, 3.8rem);
  line-height: 1.1;
  margin-bottom: 1.5rem;
  color: #ffffff;
}

.fovea-lead-text {
  font-size: clamp(1rem, 2vw, 1.25rem);
  color: rgba(255, 255, 255, 0.85);
  margin-bottom: 2.5rem;
}

/* Bento Grid */
.gaze-block {
  padding: 10dvh 0;
}

.gaze-block-title {
  text-align: center;
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  margin-bottom: 4rem;
  color: var(--vision-shield-ink);
}

.sight-bento-layout {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 1.25rem;
}

.optic-safe-module {
  background-color: var(--vision-shield-surface);
  border-radius: 20px;
  padding: 2.5rem;
  box-shadow: var(--vision-shield-card-shadow);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.optic-safe-module:hover {
  transform: scale(1.02);
  box-shadow: 0 15px 35px rgba(14, 177, 148, 0.12);
}

.optic-safe-module.span-4 {
  grid-column: span 4;
  background: var(--vision-shield-gradient);
  color: #ffffff;
}

.optic-safe-module.span-4 .pupil-passage {
  color: rgba(255, 255, 255, 0.85);
}

.optic-safe-module.span-2 {
  grid-column: span 2;
  text-align: center;
  justify-content: center;
  background-color: rgba(14, 177, 148, 0.05);
  border: 2px dashed rgba(14, 177, 148, 0.2);
}

.optic-safe-module.span-3 {
  grid-column: span 3;
}

.optic-safe-module.span-6 {
  grid-column: span 6;
  flex-direction: row;
  align-items: center;
  gap: 2rem;
}

.bento-icon-box {
  width: 60px;
  height: 60px;
  border-radius: 12px;
  background-color: rgba(14, 177, 148, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.5rem;
}

.optic-safe-module.span-4 .bento-icon-box {
  background-color: rgba(255, 255, 255, 0.15);
}

.bento-icon-box svg {
  width: 32px;
  height: 32px;
  fill: var(--vision-shield-brand);
}

.optic-safe-module.span-4 .bento-icon-box svg {
  fill: #ffffff;
}

.bento-huge-num {
  font-family: var(--font-display);
  font-size: 4rem;
  font-weight: 900;
  color: var(--vision-shield-brand);
  line-height: 1;
  margin-bottom: 0.5rem;
}

.bento-card-title {
  font-size: 1.25rem;
  margin-bottom: 0.75rem;
}

.pupil-passage {
  font-size: 0.95rem;
  color: var(--vision-shield-muted);
}

/* Scroll Reveal */
.reveal {
  animation: slide-up 0.6s linear both;
  animation-timeline: view();
  animation-range: entry 0% entry 40%;
}

/* How It Works Section */
.gaze-steps-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2.5rem;
}

.step-card-bento {
  position: relative;
  background: var(--vision-shield-surface);
  border-radius: 20px;
  padding: 3rem 2rem 2rem 2rem;
  box-shadow: var(--vision-shield-card-shadow);
  overflow: hidden;
}

.step-huge-bg-num {
  position: absolute;
  top: -10px;
  right: 10px;
  font-family: var(--font-display);
  font-size: 7rem;
  font-weight: 900;
  color: var(--vision-shield-brand);
  opacity: 0.07;
  line-height: 1;
}

.step-card-title {
  font-size: 1.3rem;
  margin-bottom: 1rem;
  color: var(--vision-shield-ink);
}

/* bg2.webp Section */
.overlaid-story-block {
  position: relative;
  background-size: cover;
  background-position: center;
  padding: 12dvh 0;
  color: #ffffff;
}

.overlaid-story-block::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(13, 28, 25, 0.85);
}

.overlaid-story-block .pupil-bound {
  position: relative;
  z-index: 2;
}

.story-content-wrap {
  max-width: 800px;
  margin: 0 auto;
  text-align: center;
}

.story-content-wrap .pupil-passage {
  color: rgba(255, 255, 255, 0.85);
  font-size: 1.1rem;
  margin-top: 1.5rem;
}

/* CTA Strip */
.focus-trigger-strip {
  background: var(--vision-shield-gradient);
  color: #ffffff;
  padding: 8dvh 0;
  border-radius: 24px;
}

.cta-flex-unit {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 2rem;
}

.cta-text-box {
  max-width: 650px;
}

.cta-text-box h2 {
  font-size: clamp(1.8rem, 3vw, 2.5rem);
  margin-bottom: 1rem;
}

.cta-text-box p {
  color: rgba(255, 255, 255, 0.85);
}

/* Expert Page Layout */
.expert-split-dock {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.expert-visual-canvas {
  position: relative;
  border-radius: 20px;
  overflow: hidden;
  box-shadow: var(--vision-shield-heavy-shadow);
}

.expert-visual-canvas img {
  width: 100%;
  height: auto;
  display: block;
}

.expert-profile-details h2 {
  font-size: 2.2rem;
  margin-bottom: 0.5rem;
}

.expert-badge {
  display: inline-block;
  padding: 0.35rem 1rem;
  background-color: rgba(14, 177, 148, 0.1);
  color: var(--vision-shield-brand);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.85rem;
  border-radius: 30px;
  margin-bottom: 1.5rem;
}

.expert-profile-details p {
  margin-bottom: 1.5rem;
}

/* Bento Mini Grid for Stats */
.bento-mini-layout {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 1.25rem;
  margin-top: 3rem;
}

/* Reserve Page Form */
.booking-center-box {
  max-width: 600px;
  margin: 0 auto;
  background: var(--vision-shield-surface);
  border-radius: 24px;
  padding: 3.5rem 3rem;
  box-shadow: var(--vision-shield-heavy-shadow);
}

.booking-intro-p {
  text-align: center;
  margin-bottom: 2.5rem;
  color: var(--vision-shield-muted);
}

.input-nerve-group {
  margin-bottom: 1.5rem;
}

.input-nerve-group label {
  display: block;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.85rem;
  margin-bottom: 0.5rem;
  text-transform: uppercase;
  color: var(--vision-shield-ink);
}

.pupil-field-input {
  width: 100%;
  padding: 1rem 1.25rem;
  border-radius: 12px;
  border: 1px solid rgba(14, 177, 148, 0.2);
  background-color: var(--vision-shield-bg);
  font-family: var(--font-body);
  color: var(--vision-shield-ink);
  transition: border-color 0.3s;
}

.pupil-field-input:focus {
  outline: none;
  border-color: var(--vision-shield-brand);
}

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

.consent-checkbox-wrap input {
  margin-top: 4px;
}

.consent-checkbox-wrap label {
  font-size: 0.85rem;
  color: var(--vision-shield-muted);
}

/* FAQ Accordion */
.faq-box-stack {
  margin-top: 5rem;
}

.faq-fold-unit {
  background: var(--vision-shield-surface);
  border-radius: 16px;
  margin-bottom: 1rem;
  box-shadow: var(--vision-shield-card-shadow);
  padding: 1.5rem 2rem;
}

.faq-title-question {
  font-size: 1.1rem;
  margin-bottom: 0.75rem;
  color: var(--vision-shield-brand);
}

/* Static Pages & Privacy */
.legal-page-body {
  padding: 6dvh 0;
}

.legal-page-body h1 {
  font-size: 2.5rem;
  margin-bottom: 2rem;
  border-bottom: 3px solid var(--vision-shield-brand);
  padding-bottom: 1rem;
}

.legal-page-body h2 {
  font-size: 1.5rem;
  margin-top: 2rem;
  margin-bottom: 1rem;
}

.legal-page-body p {
  margin-bottom: 1.2rem;
  color: var(--vision-shield-muted);
}

/* Thank You Page */
.thank-you-station {
  text-align: center;
  padding: 12dvh 0;
}

.thank-you-station svg {
  width: 80px;
  height: 80px;
  fill: var(--vision-shield-brand);
  margin-bottom: 2rem;
}

/* Footer Section */
.retina-basement {
  background-color: #0c1815;
  color: #ffffff;
  padding: 6rem 0 2rem 0;
  border-top: 5px solid var(--vision-shield-brand);
}

.basement-layout-split {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 3rem;
  margin-bottom: 4rem;
}

.basement-legal-links {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.disclaimer-strip {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 2rem;
  text-align: center;
  color: rgba(255, 255, 255, 0.5);
  font-size: 0.8rem;
}

.copyright-mark {
  margin-top: 1rem;
  font-size: 0.85rem;
}

/* Cookie Consent Banner */
.cookie-shield-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background-color: rgba(26, 45, 41, 0.98);
  color: #ffffff;
  padding: 1.5rem;
  z-index: 9999;
  box-shadow: 0 -5px 25px rgba(0,0,0,0.2);
  display: none;
}

.cookie-banner-wrap {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 2rem;
}

.cookie-btn-cluster {
  display: flex;
  gap: 1rem;
}

.cookie-action-btn {
  padding: 0.6rem 1.5rem;
  border-radius: 10px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.85rem;
  border: none;
  cursor: pointer;
}

.cookie-action-btn.accept-node {
  background-color: var(--vision-shield-brand);
  color: #ffffff;
}

.cookie-action-btn.decline-node {
  background-color: transparent;
  border: 1px solid rgba(255, 255, 255, 0.3);
  color: #ffffff;
}

/* Responsive Rules */
@media (max-width: 991px) {
  .sight-bento-layout {
    grid-template-columns: repeat(2, 1fr);
  }
  .optic-safe-module.span-4,
  .optic-safe-module.span-2,
  .optic-safe-module.span-3,
  .optic-safe-module.span-6 {
    grid-column: span 2;
  }
  .bento-mini-layout {
    grid-template-columns: repeat(2, 1fr);
  }
  .expert-split-dock {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }
}

@media (max-width: 768px) {
  .hamburger-icon {
    display: flex;
  }
  
  .visual-linkbar {
    position: fixed;
    top: 80px;
    left: -100%;
    width: 100%;
    height: calc(100vh - 80px);
    background-color: var(--vision-shield-surface);
    flex-direction: column;
    justify-content: center;
    gap: 3rem;
    padding: 2rem;
    transition: left 0.4s ease;
    z-index: 1000;
  }
  
  .optic-guide-list {
    flex-direction: column;
    align-items: center;
    gap: 2rem;
  }
  
  .hamburger-toggle:checked ~ .visual-linkbar {
    left: 0;
  }

  .hamburger-toggle:checked ~ .hamburger-icon span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
  }

  .hamburger-toggle:checked ~ .hamburger-icon span:nth-child(2) {
    opacity: 0;
  }

  .hamburger-toggle:checked ~ .hamburger-icon span:nth-child(3) {
    transform: rotate(-45deg) translate(6px, -6px);
  }

  .sight-bento-layout {
    grid-template-columns: 1fr;
  }
  .optic-safe-module.span-4,
  .optic-safe-module.span-2,
  .optic-safe-module.span-3,
  .optic-safe-module.span-6 {
    grid-column: span 1;
  }
  .optic-safe-module.span-6 {
    flex-direction: column;
    align-items: flex-start;
  }
  .bento-mini-layout {
    grid-template-columns: 1fr;
  }
  .gaze-steps-row {
    grid-template-columns: 1fr;
  }
  .cta-flex-unit {
    flex-direction: column;
    text-align: center;
  }
  .cookie-banner-wrap {
    flex-direction: column;
    text-align: center;
  }
}