@import url('https://fonts.googleapis.com/css2?family=Montserrat:wght@400;700;900&family=Oswald:wght@500;700&family=Poppins:wght@300;400;600&display=swap');

:root {
  --opti-bg-dark: #0f1020;
  --opti-bg-light: #fcfbfe;
  --opti-bg-card: #15162c;
  --opti-accent-vibrant: #6c5ce7;
  --opti-accent-coral: #ff7675;
  --opti-accent-mint: #00b894;
  --opti-text-white: #ffffff;
  --opti-text-muted: #a29bfe;
  --opti-text-dark: #1e1f29;
  --opti-gradient-hero: linear-gradient(135deg, #6c5ce7 0%, #ff7675 100%);
  --opti-gradient-dark: linear-gradient(135deg, #0f1020 0%, #15162c 100%);
  --opti-font-header: 'Oswald', sans-serif;
  --opti-font-body: 'Poppins', sans-serif;
  --opti-radius-soft: 18px;
}

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

body {
  font-family: var(--opti-font-body);
  background-color: var(--opti-bg-light);
  color: var(--opti-text-dark);
  line-height: 1.6;
  overflow-x: hidden;
}

/* Scroll-driven progress bar */
.opti-scroll-track {
  position: fixed;
  top: 0;
  left: 0;
  height: 4px;
  width: 100%;
  background: rgba(255, 255, 255, 0.2);
  z-index: 10001;
}

.opti-scroll-indicator {
  height: 100%;
  width: 0%;
  background: var(--opti-accent-coral);
  animation: opti-grow-progress linear;
  animation-timeline: scroll();
}

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

/* Common Header Styles (Preset C: Bright Accent Background) */
.opti-header-nav {
  background: var(--opti-accent-vibrant);
  padding: 1rem 2rem;
  position: sticky;
  top: 0;
  z-index: 10000;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.15);
}

.opti-header-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.opti-branding-wrap {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
  color: var(--opti-text-white);
}

.opti-branding-logo {
  width: 40px;
  height: 40px;
  fill: var(--opti-text-white);
}

.opti-branding-title {
  font-family: var(--opti-font-header);
  font-size: 1.5rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
}

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

.opti-nav-anchor {
  color: var(--opti-text-white);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.95rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  transition: color 0.3s ease;
  padding: 0.5rem 0;
  border-bottom: 2px solid transparent;
}

.opti-nav-anchor:hover {
  color: var(--opti-accent-coral);
  border-bottom-color: var(--opti-accent-coral);
}

/* CSS Only Hamburger */
.opti-burger-toggle {
  display: none;
}

.opti-burger-label {
  display: none;
  cursor: pointer;
  flex-direction: column;
  gap: 5px;
  z-index: 10002;
}

.opti-burger-label span {
  display: block;
  width: 25px;
  height: 3px;
  background-color: var(--opti-text-white);
  border-radius: 3px;
  transition: 0.3s;
}

/* Hero Section (Preset C: Bold Accent Gradient, giant backdrop number, CSS shapes) */
.opti-hero-splash {
  background: var(--opti-gradient-hero);
  position: relative;
  min-height: 90vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  padding: 10dvh 2rem;
}

.opti-giant-number {
  position: absolute;
  font-family: var(--opti-font-header);
  font-size: 28rem;
  font-weight: 900;
  color: var(--opti-text-white);
  opacity: 0.07;
  bottom: -50px;
  right: -50px;
  user-select: none;
  pointer-events: none;
  line-height: 1;
}

.opti-abstract-shape-1 {
  position: absolute;
  width: 350px;
  height: 350px;
  border-radius: 50%;
  background: rgba(255, 118, 117, 0.3);
  top: -100px;
  right: 15%;
  filter: blur(50px);
}

.opti-abstract-shape-2 {
  position: absolute;
  width: 250px;
  height: 250px;
  background: rgba(108, 92, 231, 0.4);
  bottom: -80px;
  left: 20%;
  transform: rotate(45deg);
  filter: blur(40px);
}

.opti-hero-container {
  max-width: 1200px;
  margin: 0 auto;
  position: relative;
  z-index: 5;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 4rem;
  align-items: center;
  width: 100%;
}

.opti-hero-text-side {
  color: var(--opti-text-white);
}

.opti-hero-tag {
  background: rgba(255, 255, 255, 0.15);
  color: var(--opti-text-white);
  text-transform: uppercase;
  font-weight: 700;
  font-size: 0.85rem;
  padding: 0.4rem 1rem;
  border-radius: 30px;
  display: inline-block;
  margin-bottom: 1.5rem;
  letter-spacing: 1px;
}

.opti-hero-heading {
  font-family: var(--opti-font-header);
  font-size: 4rem;
  line-height: 1.1;
  text-transform: uppercase;
  font-weight: 700;
  margin-bottom: 1.5rem;
}

.opti-hero-subtitle {
  font-size: 1.25rem;
  font-weight: 300;
  margin-bottom: 2.5rem;
  opacity: 0.9;
}

.opti-cta-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  background: var(--opti-text-white);
  color: var(--opti-accent-vibrant);
  font-family: var(--opti-font-header);
  font-weight: 700;
  font-size: 1.15rem;
  text-transform: uppercase;
  text-decoration: none;
  padding: 1.1rem 2.5rem;
  border-radius: 50px;
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.2);
  transition: all 0.3s ease;
}

.opti-cta-pill:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.3);
  background: var(--opti-accent-coral);
  color: var(--opti-text-white);
}

/* Content Section with Diagonal Clip (Preset C) */
.opti-diagonal-section {
  background: #0f1020;
  padding: 16dvh 2rem;
  margin-top: -5px;
  margin-bottom: -5px;
  position: relative;
  clip-path: polygon(0 6dvh, 100% 0, 100% 94dvh, 0 100%);
  background-size: cover;
  background-position: center;
  background-attachment: fixed;
}

.opti-diagonal-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(15, 16, 32, 0.85);
  z-index: 1;
}

.opti-diagonal-inner {
  max-width: 900px;
  margin: 0 auto;
  position: relative;
  z-index: 2;
  color: var(--opti-text-white);
  text-align: center;
}

.opti-section-label {
  font-family: var(--opti-font-header);
  text-transform: uppercase;
  color: var(--opti-accent-coral);
  font-size: 1.1rem;
  letter-spacing: 2px;
  margin-bottom: 1rem;
  display: block;
}

.opti-diagonal-title {
  font-family: var(--opti-font-header);
  text-transform: uppercase;
  font-size: 2.8rem;
  margin-bottom: 1.5rem;
}

.opti-diagonal-p {
  font-size: 1.15rem;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.8);
}

/* Features Section (3-column grid without icons, just huge numbers) */
.opti-grid-features {
  padding: 16dvh 2rem;
  max-width: 1200px;
  margin: 0 auto;
}

.opti-features-header {
  text-align: center;
  margin-bottom: 5rem;
}

.opti-features-title {
  font-family: var(--opti-font-header);
  text-transform: uppercase;
  font-size: 3rem;
  color: var(--opti-bg-dark);
}

.opti-features-box {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 3.5rem;
}

.opti-feat-card {
  display: flex;
  flex-direction: column;
}

.opti-feat-num {
  font-family: var(--opti-font-header);
  font-size: 4rem;
  font-weight: 900;
  color: var(--opti-accent-coral);
  line-height: 1;
  margin-bottom: 1rem;
}

.opti-feat-heading {
  font-family: var(--opti-font-header);
  text-transform: uppercase;
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 1rem;
  color: var(--opti-bg-dark);
}

.opti-feat-text {
  font-size: 1rem;
  color: #555;
  line-height: 1.6;
}

/* "How it works" Section (Horizontal steps, connecting line, alternating circles) */
.opti-steps-section {
  background: #f0edf7;
  padding: 16dvh 2rem;
}

.opti-steps-wrapper {
  max-width: 1100px;
  margin: 0 auto;
}

.opti-steps-header {
  text-align: center;
  margin-bottom: 6rem;
}

.opti-steps-track {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 3rem;
  position: relative;
}

/* Step Connector Line */
.opti-steps-track::before {
  content: '';
  position: absolute;
  top: 45px;
  left: 10%;
  right: 10%;
  height: 4px;
  background: var(--opti-accent-vibrant);
  z-index: 1;
}

.opti-step-node {
  position: relative;
  z-index: 2;
  text-align: center;
}

.opti-step-sphere {
  width: 90px;
  height: 90px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--opti-font-header);
  font-size: 2.2rem;
  font-weight: 700;
  margin: 0 auto 1.5rem auto;
  transition: all 0.3s ease;
}

/* Alternating styling for circles */
.opti-step-node:nth-child(odd) .opti-step-sphere {
  background: var(--opti-accent-vibrant);
  color: var(--opti-text-white);
  border: 4px solid var(--opti-accent-vibrant);
}

.opti-step-node:nth-child(even) .opti-step-sphere {
  background: var(--opti-bg-light);
  color: var(--opti-accent-vibrant);
  border: 4px solid var(--opti-accent-vibrant);
}

.opti-step-heading {
  font-family: var(--opti-font-header);
  text-transform: uppercase;
  font-size: 1.4rem;
  margin-bottom: 0.75rem;
  color: var(--opti-bg-dark);
}

.opti-step-desc {
  font-size: 0.95rem;
  color: #555;
}

/* CTA Strip (Preset C: Dark background, big heading left, pill right) */
.opti-cta-strip {
  background: var(--opti-bg-dark);
  padding: 10dvh 2rem;
  color: var(--opti-text-white);
}

.opti-cta-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 2rem;
}

.opti-cta-title {
  font-family: var(--opti-font-header);
  text-transform: uppercase;
  font-size: 3rem;
  line-height: 1.2;
  max-width: 700px;
}

.opti-cta-pill-alt {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  background: var(--opti-accent-coral);
  color: var(--opti-text-white);
  font-family: var(--opti-font-header);
  font-weight: 700;
  font-size: 1.15rem;
  text-transform: uppercase;
  text-decoration: none;
  padding: 1.1rem 2.5rem;
  border-radius: 50px;
  box-shadow: 0 8px 25px rgba(255, 118, 117, 0.3);
  transition: all 0.3s ease;
  white-space: nowrap;
}

.opti-cta-pill-alt:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 30px rgba(255, 118, 117, 0.5);
  background: var(--opti-text-white);
  color: var(--opti-accent-coral);
}

/* Footer Styles */
.opti-footer-area {
  background: #0b0c16;
  padding: 5rem 2rem 2rem 2rem;
  color: #9999b0;
}

.opti-footer-top {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  padding-bottom: 3rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  gap: 2rem;
}

.opti-footer-brand-side {
  max-width: 400px;
}

.opti-footer-links-side {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.opti-footer-link {
  color: rgba(255, 255, 255, 0.7);
  text-decoration: none;
  font-size: 0.9rem;
  transition: color 0.3s;
}

.opti-footer-link:hover {
  color: var(--opti-accent-coral);
}

.opti-footer-disclaimer {
  max-width: 1200px;
  margin: 2rem auto 0 auto;
  font-size: 0.8rem;
  line-height: 1.6;
  color: rgba(255, 255, 255, 0.4);
}

.opti-footer-bottom {
  max-width: 1200px;
  margin: 1.5rem auto 0 auto;
  font-size: 0.85rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: rgba(255, 255, 255, 0.3);
}

/* Cookie banner styles */
.opti-cookie-plate {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: #15162c;
  border-top: 3px solid var(--opti-accent-coral);
  color: var(--opti-text-white);
  padding: 1.5rem 2rem;
  z-index: 10005;
  box-shadow: 0 -5px 25px rgba(0, 0, 0, 0.3);
  display: none;
}

.opti-cookie-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 2rem;
}

.opti-cookie-text {
  font-size: 0.9rem;
  line-height: 1.5;
  color: rgba(255, 255, 255, 0.8);
}

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

.opti-cookie-btn {
  padding: 0.6rem 1.5rem;
  border: none;
  border-radius: 30px;
  font-weight: 700;
  cursor: pointer;
  font-size: 0.85rem;
  text-transform: uppercase;
  transition: all 0.3s;
}

.opti-btn-ok {
  background: var(--opti-accent-coral);
  color: var(--opti-text-white);
}

.opti-btn-ok:hover {
  background: var(--opti-text-white);
  color: var(--opti-accent-coral);
}

.opti-btn-no {
  background: transparent;
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.3);
}

.opti-btn-no:hover {
  border-color: #fff;
}

/* Minimal Hero Styles for expert, reserve, and other pages */
.opti-hero-narrow {
  background: var(--opti-gradient-hero);
  padding: 6rem 2rem;
  color: var(--opti-text-white);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.opti-hero-narrow-title {
  font-family: var(--opti-font-header);
  text-transform: uppercase;
  font-size: 3rem;
  margin-bottom: 0.5rem;
}

/* Profile / Expert Page Layout (Preset C) */
.opti-expert-grid {
  max-width: 1200px;
  margin: 0 auto;
  padding: 16dvh 2rem;
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 4rem;
  align-items: center;
}

.opti-expert-bio {
  color: var(--opti-text-dark);
}

.opti-expert-name {
  font-family: var(--opti-font-header);
  text-transform: uppercase;
  font-size: 2.5rem;
  color: var(--opti-accent-vibrant);
  margin-bottom: 1.5rem;
}

.opti-expert-lead {
  font-size: 1.2rem;
  font-weight: 600;
  margin-bottom: 1.5rem;
}

.opti-expert-p {
  font-size: 1rem;
  color: #444;
  margin-bottom: 1.5rem;
}

.opti-expert-frame {
  position: relative;
}

.opti-expert-img {
  width: 100%;
  border-radius: var(--opti-radius-soft);
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.15);
  display: block;
}

/* 4 Stats in a row */
.opti-stats-strip {
  background: var(--opti-bg-dark);
  padding: 8dvh 2rem;
  color: var(--opti-text-white);
}

.opti-stats-row {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
  text-align: center;
}

.opti-stat-number {
  font-family: var(--opti-font-header);
  font-size: 4rem;
  font-weight: 900;
  color: var(--opti-accent-coral);
  line-height: 1;
  margin-bottom: 0.5rem;
}

.opti-stat-label {
  font-size: 0.95rem;
  color: var(--opti-text-muted);
  text-transform: uppercase;
}

/* Reserve Page Layout (Preset C: Form left 60%, Info right 40%) */
.opti-reserve-layout {
  max-width: 1200px;
  margin: 0 auto;
  padding: 16dvh 2rem;
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 4rem;
}

.opti-booking-card {
  background: var(--opti-bg-light);
  border: 4px solid var(--opti-accent-vibrant);
  padding: 3rem;
  border-radius: var(--opti-radius-soft);
  box-shadow: 0 10px 30px rgba(108, 92, 231, 0.15);
}

.opti-booking-title {
  font-family: var(--opti-font-header);
  text-transform: uppercase;
  font-size: 2rem;
  margin-bottom: 2rem;
  color: var(--opti-accent-vibrant);
}

.opti-reserve-field {
  margin-bottom: 1.5rem;
}

.opti-input-label {
  display: block;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.opti-typed-input {
  width: 100%;
  padding: 0.9rem 1.2rem;
  border: 2px solid #ddd;
  border-radius: 8px;
  font-family: inherit;
  font-size: 1rem;
  transition: border-color 0.3s;
}

.opti-typed-input:focus {
  outline: none;
  border-color: var(--opti-accent-vibrant);
}

.opti-agreement-checkbox {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  margin-top: 1.5rem;
  margin-bottom: 2rem;
  cursor: pointer;
}

.opti-agreement-checkbox input {
  margin-top: 0.25rem;
}

.opti-submit-btn {
  background: var(--opti-accent-coral);
  color: var(--opti-text-white);
  border: none;
  font-family: var(--opti-font-header);
  font-size: 1.2rem;
  text-transform: uppercase;
  font-weight: 700;
  padding: 1rem 2rem;
  border-radius: 50px;
  width: 100%;
  cursor: pointer;
  box-shadow: 0 5px 15px rgba(255, 118, 117, 0.3);
  transition: background 0.3s, transform 0.2s;
}

.opti-submit-btn:hover {
  background: var(--opti-accent-vibrant);
  transform: translateY(-2px);
}

.opti-info-column {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.opti-info-brick {
  background: #fff;
  padding: 2rem;
  border-radius: var(--opti-radius-soft);
  box-shadow: 0 5px 20px rgba(0,0,0,0.05);
  border-left: 5px solid var(--opti-accent-coral);
}

.opti-brick-title {
  font-family: var(--opti-font-header);
  text-transform: uppercase;
  font-size: 1.2rem;
  margin-bottom: 0.75rem;
  color: var(--opti-bg-dark);
}

.opti-brick-bullets {
  list-style: none;
  margin-top: 1rem;
}

.opti-brick-bullets li {
  position: relative;
  padding-left: 1.5rem;
  margin-bottom: 0.5rem;
  font-size: 0.9rem;
}

.opti-brick-bullets li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 7px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--opti-accent-coral);
}

.opti-direct-mail {
  display: inline-block;
  color: var(--opti-accent-vibrant);
  text-decoration: none;
  font-weight: 700;
  margin-top: 1.5rem;
}

/* FAQ Layout (CSS only, multiple tabs, all open by default as requested) */
.opti-faq-wrap {
  padding: 16dvh 2rem;
  background: #f9f8ff;
}

.opti-faq-inner {
  max-width: 900px;
  margin: 0 auto;
}

.opti-faq-accordion {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.opti-faq-node {
  background: #fff;
  padding: 2rem;
  border-radius: var(--opti-radius-soft);
  box-shadow: 0 4px 15px rgba(0,0,0,0.02);
}

.opti-faq-question {
  font-family: var(--opti-font-header);
  text-transform: uppercase;
  font-size: 1.2rem;
  color: var(--opti-accent-vibrant);
  margin-bottom: 0.75rem;
}

.opti-faq-answer {
  color: #555;
  font-size: 0.95rem;
  line-height: 1.6;
}

/* Simple Document layout (Privacy/Terms) */
.opti-docs-block {
  padding: 16dvh 2rem;
  max-width: 900px;
  margin: 0 auto;
}

.opti-docs-title {
  font-family: var(--opti-font-header);
  text-transform: uppercase;
  font-size: 3rem;
  margin-bottom: 2rem;
}

.opti-docs-block h2 {
  font-family: var(--opti-font-header);
  text-transform: uppercase;
  margin-top: 2rem;
  margin-bottom: 1rem;
  color: var(--opti-accent-vibrant);
}

.opti-docs-block p {
  margin-bottom: 1.5rem;
  color: #444;
}

/* Thank You layout */
.opti-thank-wrap {
  padding: 16dvh 2rem;
  text-align: center;
  max-width: 700px;
  margin: 0 auto;
}

.opti-thank-img {
  width: 100%;
  max-width: 400px;
  border-radius: var(--opti-radius-soft);
  margin-bottom: 2rem;
}

/* Scroll Animations */
.opti-reveal-on-scroll {
  animation: opti-fade-in linear both;
  animation-timeline: view();
  animation-range: entry 5% cover 30%;
}

@keyframes opti-fade-in {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Desktop and Responsive Layout adjustments */
@media (max-width: 1024px) {
  .opti-hero-container {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 2rem;
  }
  .opti-giant-number {
    font-size: 18rem;
  }
  .opti-features-box {
    grid-template-columns: 1fr;
    gap: 3rem;
  }
  .opti-steps-track {
    grid-template-columns: 1fr;
    gap: 4rem;
  }
  .opti-steps-track::before {
    display: none;
  }
  .opti-cta-inner {
    flex-direction: column;
    text-align: center;
  }
  .opti-expert-grid {
    grid-template-columns: 1fr;
    text-align: center;
  }
  .opti-expert-frame {
    order: -1;
    max-width: 500px;
    margin: 0 auto;
  }
  .opti-stats-row {
    grid-template-columns: repeat(2, 1fr);
    gap: 3rem;
  }
  .opti-reserve-layout {
    grid-template-columns: 1fr;
  }
  .opti-cookie-inner {
    flex-direction: column;
    text-align: center;
  }
}

@media (max-width: 768px) {
  .opti-burger-label {
    display: flex;
  }
  .opti-nav-links-box {
    display: none;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--opti-accent-vibrant);
    padding: 2rem;
    gap: 1.5rem;
    box-shadow: 0 10px 15px rgba(0,0,0,0.1);
  }
  .opti-burger-toggle:checked ~ .opti-nav-links-box {
    display: flex;
  }
  .opti-burger-toggle:checked ~ .opti-burger-label span:nth-child(1) {
    transform: translateY(8px) rotate(45deg);
  }
  .opti-burger-toggle:checked ~ .opti-burger-label span:nth-child(2) {
    opacity: 0;
  }
  .opti-burger-toggle:checked ~ .opti-burger-label span:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
  }
  .opti-hero-heading {
    font-size: 2.8rem;
  }
  .opti-footer-top {
    flex-direction: column;
    text-align: center;
    align-items: center;
  }
  .opti-footer-bottom {
    flex-direction: column;
    gap: 1rem;
    text-align: center;
  }
}