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

:root {
  --optic-canvas-base: #f7f9fc;
  --optic-surface-card: #ffffff;
  --optic-accent-emerald: #0d9488;
  --optic-accent-amber: #d97706;
  --optic-ink-heading: #0f172a;
  --optic-ink-body: #334155;
  --optic-ink-light: #64748b;
  --optic-dark-stack: #0f172a;
  --optic-hero-overlay: linear-gradient(135deg, rgba(15, 23, 42, 0.85) 0%, rgba(13, 148, 136, 0.75) 100%);
  --optic-card-shadow-soft: 0 8px 24px rgba(15, 23, 42, 0.08);
  --optic-card-shadow-heavy: 0 20px 60px rgba(15, 23, 42, 0.15);
  --optic-card-shadow-floating: 0 30px 80px rgba(15, 23, 42, 0.22);
  --font-display: 'Montserrat', sans-serif;
  --font-body: 'Open Sans', sans-serif;
}

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

html {
  scroll-behavior: smooth;
  font-family: var(--font-body);
  background-color: var(--optic-canvas-base);
  color: var(--optic-ink-body);
  line-height: 1.6;
}

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

/* Scroll-driven Progress Meter */
@keyframes opticScrollProgress {
  from { width: 0%; }
  to { width: 100%; }
}

.optic-scroll-bar {
  position: fixed;
  top: 0;
  left: 0;
  height: 4px;
  background: var(--optic-accent-emerald);
  z-index: 10001;
  animation: opticScrollProgress linear;
  animation-timeline: scroll();
}

/* Scroll-driven Entrance Animations */
@keyframes opticViewFadeUp {
  from { opacity: 0; transform: translateY(35px); }
  to { opacity: 1; transform: translateY(0); }
}

.optic-animate-entrance {
  animation: opticViewFadeUp linear forwards;
  animation-timeline: view();
  animation-range: entry 10% cover 25%;
}

/* Typography */
h1, h2, h3, h4 {
  font-family: var(--font-display);
  color: var(--optic-ink-heading);
  line-height: 1.25;
}

h1 { font-size: 2.75rem; font-weight: 800; }
h2 { font-size: 2.1rem; font-weight: 700; margin-bottom: 1rem; }
h3 { font-size: 1.4rem; font-weight: 600; margin-bottom: 0.75rem; }

p { margin-bottom: 1rem; }

a {
  text-decoration: none;
  color: inherit;
  transition: all 0.25s ease;
}

/* HEADER - Preset K */
.optic-main-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background-color: var(--optic-surface-card);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
  padding: 1rem 2rem;
}

.optic-header-shell {
  max-width: 1280px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.optic-brand-link {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--optic-ink-heading);
}

.optic-brand-svg {
  width: 36px;
  height: 36px;
  fill: var(--optic-accent-emerald);
}

.optic-nav-menu {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.optic-nav-item {
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--optic-ink-body);
}

.optic-nav-item:hover {
  color: var(--optic-accent-emerald);
}

.optic-btn-action {
  display: inline-block;
  background-color: var(--optic-accent-emerald);
  color: #ffffff !important;
  padding: 0.75rem 1.75rem;
  border-radius: 999px;
  font-weight: 700;
  font-size: 0.95rem;
  box-shadow: 0 6px 16px rgba(13, 148, 136, 0.3);
  border: none;
  cursor: pointer;
  text-align: center;
}

.optic-btn-action:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 22px rgba(13, 148, 136, 0.4);
  background-color: #0b7a70;
}

/* Mobile Hamburger Hack */
.optic-menu-checkbox { display: none; }
.optic-menu-toggle { display: none; cursor: pointer; flex-direction: column; gap: 5px; }
.optic-menu-toggle span { width: 25px; height: 3px; background: var(--optic-ink-heading); border-radius: 2px; }

/* Preset K Stacked Hero */
.optic-stacked-hero {
  position: relative;
  min-height: 90vh;
  background: var(--optic-hero-overlay), url('img/bg.webp') center/cover no-repeat;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 4rem 1.5rem;
}

.optic-hero-stack-container {
  position: relative;
  max-width: 850px;
  width: 100%;
  margin: 0 auto;
}

.optic-hero-card-back {
  position: absolute;
  top: -20px;
  left: 5%;
  right: 5%;
  height: 100%;
  background: rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(8px);
  border-radius: 20px;
  transform: rotate(-2deg);
  z-index: 1;
}

.optic-hero-card-mid {
  position: absolute;
  top: -10px;
  left: 3%;
  right: 3%;
  height: 100%;
  background: rgba(255, 255, 255, 0.25);
  backdrop-filter: blur(12px);
  border-radius: 20px;
  transform: rotate(1deg);
  z-index: 2;
}

.optic-hero-card-front {
  position: relative;
  z-index: 3;
  background: var(--optic-surface-card);
  padding: 3.5rem 2.5rem;
  border-radius: 24px;
  box-shadow: var(--optic-card-shadow-floating);
  text-align: center;
}

.optic-hero-tag {
  display: inline-block;
  background: rgba(13, 148, 136, 0.1);
  color: var(--optic-accent-emerald);
  padding: 0.4rem 1rem;
  border-radius: 999px;
  font-weight: 700;
  font-size: 0.85rem;
  text-transform: uppercase;
  margin-bottom: 1.25rem;
}

/* Floating Content Panels */
.optic-floating-section {
  padding: 6rem 1.5rem;
  max-width: 1280px;
  margin: 0 auto;
}

.optic-split-panel {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
}

.optic-image-frame {
  position: relative;
  border-radius: 20px;
  overflow: hidden;
  box-shadow: var(--optic-card-shadow-heavy);
}

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

.optic-raised-panel {
  background: var(--optic-surface-card);
  padding: 2.5rem;
  border-radius: 16px;
  box-shadow: var(--optic-card-shadow-soft);
}

/* Features Levitating Cards */
.optic-features-wrapper {
  max-width: 1280px;
  margin: -50px auto 4rem auto;
  padding: 0 1.5rem;
  position: relative;
  z-index: 10;
}

.optic-features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
}

.optic-levitate-card {
  background: var(--optic-surface-card);
  padding: 2.25rem;
  border-radius: 16px;
  box-shadow: var(--optic-card-shadow-heavy);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.optic-levitate-card:hover {
  transform: translateY(-12px);
  box-shadow: 0 25px 70px rgba(15, 23, 42, 0.2);
}

.optic-icon-badge {
  width: 56px;
  height: 56px;
  border-radius: 14px;
  background: rgba(13, 148, 136, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.25rem;
}

.optic-icon-badge svg {
  width: 28px;
  height: 28px;
  fill: var(--optic-accent-emerald);
}

/* How It Works - Pill Cards */
.optic-pill-steps {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  margin-top: 2.5rem;
}

.optic-pill-card {
  background: var(--optic-surface-card);
  border-radius: 999px;
  padding: 1.5rem 2.5rem;
  box-shadow: 0 12px 30px rgba(0,0,0,0.08);
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.optic-step-num {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: var(--optic-accent-amber);
  color: #ffffff;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

/* CTA Floating Panel */
.optic-cta-banner-bg {
  background: var(--optic-dark-stack);
  padding: 6rem 1.5rem;
  position: relative;
  background-image: radial-gradient(circle at 50% 50%, rgba(13, 148, 136, 0.2) 0%, transparent 70%);
}

.optic-cta-floating-panel {
  max-width: 65%;
  margin: 0 auto;
  background: var(--optic-surface-card);
  padding: 3.5rem 2.5rem;
  border-radius: 24px;
  box-shadow: var(--optic-card-shadow-floating);
  text-align: center;
}

/* Expert Page Specifics */
.optic-stat-pills-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1.5rem;
  margin: 3rem 0;
}

.optic-stat-pill {
  background: var(--optic-surface-card);
  border-radius: 999px;
  padding: 1.5rem;
  text-align: center;
  box-shadow: var(--optic-card-shadow-soft);
  border: 1px solid rgba(13, 148, 136, 0.15);
}

.optic-stat-number {
  font-family: var(--font-display);
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--optic-accent-emerald);
}

.optic-stat-label {
  font-size: 0.9rem;
  color: var(--optic-ink-light);
  font-weight: 600;
}

/* Reservation Form Card */
.optic-form-card {
  background: var(--optic-surface-card);
  padding: 3rem 2.5rem;
  border-radius: 24px;
  box-shadow: var(--optic-card-shadow-floating);
  max-width: 650px;
  margin: 0 auto;
}

.optic-form-group {
  margin-bottom: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  text-align: left;
}

.optic-form-group label {
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--optic-ink-heading);
}

.optic-form-input {
  width: 100%;
  padding: 0.85rem 1.25rem;
  border-radius: 10px;
  border: 1px solid #cbd5e1;
  font-family: var(--font-body);
  font-size: 1rem;
  outline: none;
  transition: border-color 0.2s;
}

.optic-form-input:focus {
  border-color: var(--optic-accent-emerald);
  box-shadow: 0 0 0 3px rgba(13, 148, 136, 0.15);
}

.optic-checkbox-group {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  margin-bottom: 1.5rem;
  text-align: left;
}

.optic-checkbox-group input {
  margin-top: 0.25rem;
}

/* Numbered List in Feature Cards */
.optic-badge-list {
  list-style: none;
  margin-top: 1rem;
}

.optic-badge-list li {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 0.5rem;
  font-size: 0.95rem;
}

.optic-num-badge {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: rgba(13, 148, 136, 0.15);
  color: var(--optic-accent-emerald);
  font-weight: 700;
  font-size: 0.8rem;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

/* FAQ Lifting Cards */
.optic-faq-container {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  max-width: 800px;
  margin: 2.5rem auto 0 auto;
}

.optic-faq-card {
  background: var(--optic-surface-card);
  padding: 1.75rem;
  border-radius: 14px;
  box-shadow: var(--optic-card-shadow-soft);
}

.optic-faq-card h4 {
  color: var(--optic-accent-emerald);
  margin-bottom: 0.5rem;
}

/* Footer */
.optic-site-footer {
  background-color: var(--optic-dark-stack);
  color: #e2e8f0;
  padding: 4rem 1.5rem 2rem 1.5rem;
  margin-top: auto;
}

.optic-footer-shell {
  max-width: 1280px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 2.5rem;
}

.optic-footer-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1.5rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  padding-bottom: 2rem;
}

.optic-footer-links {
  display: flex;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.optic-footer-links a:hover {
  color: var(--optic-accent-emerald);
}

.optic-disclaimer-text {
  font-size: 0.85rem;
  color: #94a3b8;
  max-width: 900px;
  line-height: 1.5;
}

.optic-copyright {
  text-align: center;
  font-size: 0.85rem;
  color: #64748b;
}

/* Cookie Banner */
.optic-cookie-wrapper {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: var(--optic-dark-stack);
  color: #ffffff;
  padding: 1.25rem 2rem;
  z-index: 9999;
  box-shadow: 0 -10px 25px rgba(0,0,0,0.3);
  display: none;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.optic-cookie-actions {
  display: flex;
  gap: 1rem;
}

.optic-btn-cookie-accept {
  background: var(--optic-accent-emerald);
  color: #ffffff;
  border: none;
  padding: 0.6rem 1.4rem;
  border-radius: 999px;
  font-weight: 700;
  cursor: pointer;
}

.optic-btn-cookie-decline {
  background: transparent;
  color: #cbd5e1;
  border: 1px solid #cbd5e1;
  padding: 0.6rem 1.4rem;
  border-radius: 999px;
  font-weight: 600;
  cursor: pointer;
}

/* Responsive Media Queries */
@media (max-width: 992px) {
  .optic-split-panel {
    grid-template-columns: 1fr;
  }
  .optic-cta-floating-panel {
    max-width: 90%;
  }
}

@media (max-width: 768px) {
  h1 { font-size: 2rem; }
  h2 { font-size: 1.6rem; }
  .optic-menu-toggle { display: flex; }
  .optic-nav-menu {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--optic-surface-card);
    flex-direction: column;
    padding: 1.5rem;
    gap: 1.25rem;
    box-shadow: 0 10px 20px rgba(0,0,0,0.1);
    display: none;
  }
  .optic-menu-checkbox:checked ~ .optic-nav-menu {
    display: flex;
  }
  .optic-pill-card {
    border-radius: 20px;
    flex-direction: column;
    text-align: center;
  }
  .optic-cta-floating-panel {
    max-width: 100%;
    padding: 2rem 1.5rem;
  }
  .optic-hero-card-front {
    padding: 2rem 1.25rem;
  }
}