@import url('https://fonts.googleapis.com/css2?family=Lora:ital,wght@0,400;0,600;1,400&family=Oswald:wght@400;600;700&display=swap');

:root {
  --optic-bg: #FFFFFF;
  --optic-surface: #F8FAFC;
  --optic-tone: #0284C7; /* Rich blue for contrast WCAG AA */
  --optic-tone-hover: #0369A1;
  --optic-ink: #0F172A;
  --optic-ink-light: #475569;
  --optic-dark: #1E293B;
  --optic-gradient: linear-gradient(135deg, #0EA5E9 0%, #3B82F6 100%);
  
  --font-display: 'Oswald', sans-serif;
  --font-body: 'Lora', serif;
  
  --space-scale: 16dvh; /* spacious */
  --curve-base: 16px; /* soft */
  --shadow-raised: 0 10px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);
}

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

body {
  font-family: var(--font-body);
  color: var(--optic-ink);
  background-color: var(--optic-bg);
  line-height: 1.7;
  overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  text-transform: uppercase;
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 1rem;
}

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

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

/* LAYOUT BOUNDS */
.sight-bounds {
  width: 90%;
  max-width: 1200px;
  margin: 0 auto;
}

/* PRESET C: HEADER */
.top-navigation-bar {
  background: var(--optic-gradient);
  color: #FFFFFF;
  padding: 1.2rem 0;
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: var(--shadow-raised);
}

.top-nav-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.brand-mark {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  text-transform: uppercase;
  color: #FFFFFF;
}

.brand-mark svg {
  width: 32px;
  height: 32px;
  fill: #FFFFFF;
}

.nav-links-wrap {
  display: flex;
  gap: 2rem;
  align-items: center;
}

.nav-links-wrap a {
  font-family: var(--font-display);
  font-size: 1.1rem;
  text-transform: uppercase;
  font-weight: 600;
  position: relative;
}

.nav-links-wrap a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background-color: #FFFFFF;
  transition: width 0.3s ease;
}

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

.mobile-toggle-box,
.mobile-toggle-icon {
  display: none;
}

/* PRESET C: INDEX HERO */
.vision-intro-zone {
  position: relative;
  min-height: 90vh;
  background: var(--optic-gradient);
  color: #FFFFFF;
  display: flex;
  align-items: center;
  overflow: hidden;
  padding: var(--space-scale) 0;
}

.giant-bg-number {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-size: 35rem;
  font-family: var(--font-display);
  font-weight: 900;
  color: #FFFFFF;
  opacity: 0.06;
  pointer-events: none;
  z-index: 0;
  white-space: nowrap;
}

.intro-split-layout {
  display: flex;
  align-items: center;
  position: relative;
  z-index: 2;
}

.intro-text-area {
  flex: 1;
  padding-right: 2rem;
}

.intro-text-area h1 {
  font-size: clamp(3rem, 6vw, 5rem);
  margin-bottom: 2rem;
}

.intro-text-area p {
  font-size: 1.25rem;
  margin-bottom: 2.5rem;
  max-width: 600px;
}

.action-trigger-light {
  display: inline-block;
  background-color: #FFFFFF;
  color: var(--optic-tone);
  font-family: var(--font-display);
  font-size: 1.2rem;
  padding: 1rem 2.5rem;
  border-radius: var(--curve-base);
  text-transform: uppercase;
  font-weight: 700;
  box-shadow: var(--shadow-raised);
}

.action-trigger-light:hover {
  background-color: var(--optic-surface);
  transform: translateY(-2px);
}

.intro-shapes-area {
  flex: 1;
  position: relative;
  min-height: 400px;
}

.abstract-shape-circle {
  position: absolute;
  width: 300px;
  height: 300px;
  border: 4px solid rgba(255,255,255,0.2);
  border-radius: 50%;
  top: 10%;
  right: 10%;
}

.abstract-shape-circle::before {
  content: '';
  position: absolute;
  width: 150px;
  height: 150px;
  background: rgba(255,255,255,0.15);
  border-radius: 50%;
  bottom: -20px;
  left: -20px;
  backdrop-filter: blur(5px);
}

.abstract-shape-rect {
  position: absolute;
  width: 200px;
  height: 250px;
  background: rgba(255,255,255,0.1);
  bottom: 10%;
  left: 20%;
  transform: rotate(15deg);
  border-radius: var(--curve-base);
  backdrop-filter: blur(10px);
}

/* PRESET C: CONTENT WITH DIAGONAL CLIP-PATH */
.knowledge-zone {
  position: relative;
  padding: var(--space-scale) 0;
  background-image: url('img/bg2.webp');
  background-size: cover;
  background-position: center;
  background-attachment: fixed;
  clip-path: polygon(0 8%, 100% 0, 100% 92%, 0 100%);
  margin-top: -5dvh;
  margin-bottom: -5dvh;
  z-index: 5;
}

.knowledge-zone::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(15, 23, 42, 0.7); /* Dark overlay */
}

.knowledge-inner {
  position: relative;
  z-index: 2;
  background: rgba(255, 255, 255, 0.95);
  padding: 4rem;
  border-radius: var(--curve-base);
  max-width: 800px;
  margin: 0 auto;
  box-shadow: var(--shadow-raised);
}

.knowledge-inner h2 {
  color: var(--optic-tone);
  font-size: 2.5rem;
}

/* PRESET C: FEATURES (BIG NUMBERS) */
.habits-overview-zone {
  padding: calc(var(--space-scale) * 1.2) 0 var(--space-scale);
  background-color: var(--optic-surface);
}

.habits-grid-layout {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 4rem;
}

.habit-item {
  position: relative;
}

.habit-big-number {
  font-family: var(--font-display);
  font-size: 4rem;
  color: var(--optic-tone);
  font-weight: 900;
  line-height: 1;
  margin-bottom: 0.5rem;
}

.habit-item h3 {
  font-size: 1.5rem;
  color: var(--optic-ink);
  margin-bottom: 1rem;
}

/* PRESET C: HOW IT WORKS */
.process-path-zone {
  padding: var(--space-scale) 0;
  background-color: var(--optic-bg);
}

.process-heading {
  text-align: center;
  font-size: 2.5rem;
  margin-bottom: 4rem;
  color: var(--optic-ink);
}

.process-stepper {
  display: flex;
  justify-content: space-between;
  position: relative;
}

.process-stepper::before {
  content: '';
  position: absolute;
  top: 40px;
  left: 0;
  width: 100%;
  height: 4px;
  background-color: var(--optic-tone);
  z-index: 1;
}

.process-step-node {
  position: relative;
  z-index: 2;
  flex: 1;
  text-align: center;
  padding: 0 1rem;
}

.step-circle {
  width: 80px;
  height: 80px;
  margin: 0 auto 1.5rem;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 700;
  background-color: var(--optic-bg);
  border: 4px solid var(--optic-tone);
  color: var(--optic-tone);
  box-shadow: 0 0 0 10px var(--optic-bg); /* to cover the line behind */
}

.process-step-node:nth-child(even) .step-circle {
  background-color: var(--optic-tone);
  color: #FFFFFF;
}

/* PRESET C: CTA STRIP */
.action-strip-zone {
  background-color: var(--optic-dark);
  padding: 6dvh 0;
}

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

.action-strip-flex h2 {
  color: #FFFFFF;
  font-size: 3rem;
  margin: 0;
  flex: 1;
}

.action-trigger-pill {
  display: inline-block;
  background: var(--optic-gradient);
  color: #FFFFFF;
  font-family: var(--font-display);
  font-size: 1.2rem;
  padding: 1.2rem 3rem;
  border-radius: 999px;
  text-transform: uppercase;
  font-weight: 700;
  box-shadow: var(--shadow-raised);
  white-space: nowrap;
}

.action-trigger-pill:hover {
  transform: translateY(-3px);
  filter: brightness(1.1);
}

/* FOOTER */
.bottom-area-zone {
  background-color: #0B1120;
  color: var(--optic-ink-light);
  padding: 4rem 0 2rem;
}

.bottom-grid {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 2rem;
  margin-bottom: 3rem;
}

.bottom-brand {
  max-width: 300px;
}

.bottom-brand .brand-mark {
  margin-bottom: 1rem;
}

.bottom-links {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.bottom-links a:hover {
  color: #FFFFFF;
}

.bottom-legal {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: 2rem;
  text-align: center;
  font-size: 0.9rem;
}

.legal-disclaimer {
  margin-bottom: 1rem;
  font-weight: 600;
  color: #FFFFFF;
}

/* EXPERT PAGE */
.educator-hero {
  padding: var(--space-scale) 0 4dvh;
  text-align: center;
}

.educator-hero h1 {
  font-size: 4rem;
  color: var(--optic-tone);
}

.educator-split {
  display: flex;
  gap: 4rem;
  padding: var(--space-scale) 0;
  align-items: center;
}

.educator-image-box {
  flex: 0 0 45%;
}

.educator-image-box img {
  border-radius: var(--curve-base);
  box-shadow: var(--shadow-raised);
}

.educator-text-box {
  flex: 1;
}

.educator-text-box h2 {
  font-size: 2.5rem;
}

.data-metrics-row {
  display: flex;
  gap: 2rem;
  justify-content: space-between;
  padding: var(--space-scale) 0;
  background-color: var(--optic-surface);
}

.metric-node {
  text-align: center;
  flex: 1;
}

.metric-value {
  font-family: var(--font-display);
  font-size: 4.5rem;
  font-weight: 700;
  color: var(--optic-tone);
  line-height: 1;
}

.metric-label {
  font-size: 1.1rem;
  color: var(--optic-ink-light);
  font-weight: 600;
  margin-top: 0.5rem;
}

.educator-final-note {
  position: relative;
  padding: var(--space-scale) 0;
  background-image: url('img/bg3.webp');
  background-size: cover;
  background-position: center;
}

.educator-final-note::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--optic-gradient);
  opacity: 0.9;
}

.final-note-content {
  position: relative;
  z-index: 2;
  color: #FFFFFF;
  max-width: 800px;
  margin: 0 auto;
  text-align: center;
}

.final-note-content h2 {
  font-size: 3rem;
}

/* RESERVE PAGE */
.booking-layout-wrap {
  display: flex;
  gap: 4rem;
  padding: var(--space-scale) 0;
}

.booking-form-area {
  flex: 0 0 60%;
  background: var(--optic-surface);
  padding: 3rem;
  border-radius: var(--curve-base);
  box-shadow: var(--shadow-raised);
}

.booking-form-area h1 {
  font-size: 2.5rem;
  color: var(--optic-tone);
  margin-bottom: 2rem;
}

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

.input-field {
  width: 100%;
  padding: 1rem;
  border: 2px solid var(--optic-ink-light);
  border-radius: 8px;
  font-family: var(--font-body);
  font-size: 1rem;
  transition: border-color 0.3s ease;
}

.input-field:focus {
  outline: none;
  border-color: var(--optic-tone);
}

.check-group {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
  margin-bottom: 2rem;
  font-size: 0.9rem;
}

.submit-trigger {
  width: 100%;
  background: var(--optic-tone);
  color: #FFFFFF;
  border: none;
  padding: 1.2rem;
  font-family: var(--font-display);
  font-size: 1.2rem;
  text-transform: uppercase;
  border-radius: 8px;
  cursor: pointer;
  box-shadow: var(--shadow-raised);
  transition: filter 0.3s ease;
}

.submit-trigger:hover {
  filter: brightness(1.1);
}

.direct-mail-note {
  margin-top: 1.5rem;
  text-align: center;
  font-size: 0.95rem;
}

.direct-mail-note a {
  color: var(--optic-tone);
  font-weight: bold;
}

.booking-info-area {
  flex: 1;
}

.info-card-node {
  margin-bottom: 2rem;
}

.info-card-node svg {
  width: 48px;
  height: 48px;
  fill: var(--optic-tone);
  margin-bottom: 1rem;
}

.info-card-node h3 {
  font-size: 1.3rem;
  color: var(--optic-ink);
}

.info-card-node ul {
  list-style: none;
  margin-top: 1rem;
}

.info-card-node li {
  position: relative;
  padding-left: 1.5rem;
  margin-bottom: 0.5rem;
}

.info-card-node li::before {
  content: '•';
  position: absolute;
  left: 0;
  color: var(--optic-tone);
  font-size: 1.5rem;
  line-height: 1;
}

.faq-zone {
  padding: 4dvh 0 var(--space-scale);
}

.faq-zone h2 {
  text-align: center;
  margin-bottom: 3rem;
  font-size: 2.5rem;
}

details.faq-item {
  background: var(--optic-surface);
  margin-bottom: 1rem;
  padding: 1.5rem;
  border-radius: 8px;
  box-shadow: var(--shadow-raised);
}

details.faq-item summary {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 600;
  cursor: pointer;
  list-style: none;
  position: relative;
  text-transform: uppercase;
}

details.faq-item summary::-webkit-details-marker {
  display: none;
}

details.faq-item p {
  margin-top: 1rem;
  color: var(--optic-ink-light);
}

/* PRIVACY, TERMS & THANK YOU */
.plain-text-zone {
  padding: var(--space-scale) 0;
  max-width: 800px;
  margin: 0 auto;
}

.plain-text-zone h1 {
  font-size: 3rem;
  color: var(--optic-tone);
  margin-bottom: 2rem;
}

.plain-text-zone h2 {
  font-size: 2rem;
  margin: 2rem 0 1rem;
}

.plain-text-zone p {
  margin-bottom: 1.5rem;
}

.appreciation-zone {
  min-height: 80vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  background-image: url('img/bg3.webp');
  background-size: cover;
  background-position: center;
  position: relative;
}

.appreciation-zone::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(15, 23, 42, 0.85);
}

.appreciation-content {
  position: relative;
  z-index: 2;
  color: #FFFFFF;
}

.appreciation-content h1 {
  font-size: 4rem;
  margin-bottom: 1rem;
}

/* COOKIE BANNER */
.cookie-notice-strip {
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  background: var(--optic-dark);
  color: #FFFFFF;
  padding: 1.5rem;
  z-index: 9999;
  display: flex;
  justify-content: space-between;
  align-items: center;
  box-shadow: 0 -5px 15px rgba(0,0,0,0.2);
}

.cookie-notice-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  width: 100%;
}

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

.cookie-trigger {
  padding: 0.5rem 1.5rem;
  border-radius: 4px;
  border: none;
  font-family: var(--font-display);
  text-transform: uppercase;
  cursor: pointer;
  font-weight: 600;
}

#accept-cookie {
  background: var(--optic-tone);
  color: #FFFFFF;
}

#decline-cookie {
  background: transparent;
  color: #FFFFFF;
  border: 1px solid #FFFFFF;
}

/* RESPONSIVE */
@media (max-width: 900px) {
  .intro-split-layout {
    flex-direction: column;
    text-align: center;
    gap: 3rem;
  }
  
  .intro-text-area {
    padding-right: 0;
  }
  
  .intro-text-area p {
    margin: 0 auto 2.5rem;
  }
  
  .intro-shapes-area {
    width: 100%;
    min-height: 300px;
  }
  
  .abstract-shape-circle {
    right: 50%;
    transform: translateX(50%);
  }
  
  .process-stepper {
    flex-direction: column;
    gap: 3rem;
  }
  
  .process-stepper::before {
    display: none;
  }
  
  .action-strip-flex {
    flex-direction: column;
    text-align: center;
  }
  
  .educator-split {
    flex-direction: column;
  }
  
  .data-metrics-row {
    flex-direction: column;
    gap: 3rem;
  }
  
  .booking-layout-wrap {
    flex-direction: column;
  }
}

@media (max-width: 768px) {
  .mobile-toggle-label {
    display: block;
    cursor: pointer;
  }
  
  .mobile-toggle-icon {
    display: block;
    width: 30px;
    height: 2px;
    background: #FFFFFF;
    position: relative;
  }
  
  .mobile-toggle-icon::before,
  .mobile-toggle-icon::after {
    content: '';
    position: absolute;
    width: 100%;
    height: 2px;
    background: #FFFFFF;
    left: 0;
  }
  
  .mobile-toggle-icon::before { top: -8px; }
  .mobile-toggle-icon::after { bottom: -8px; }
  
  .nav-links-wrap {
    display: none;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    background: var(--optic-dark);
    padding: 2rem 0;
    box-shadow: var(--shadow-raised);
  }
  
  .mobile-toggle-box:checked ~ .nav-links-wrap {
    display: flex;
  }

  .knowledge-inner {
    padding: 2rem;
  }
  
  .cookie-notice-wrap {
    flex-direction: column;
    text-align: center;
  }
}