@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600&family=Nunito:wght@700;800;900&display=swap');

:root {
  --audio-prev-bg: #eef2f7;
  --audio-prev-surface: #eef2f7;
  --audio-prev-accent: #3498db;
  --audio-prev-accent-hover: #217dbb;
  --audio-prev-text: #2f3640;
  --audio-prev-text-muted: #718093;
  --audio-prev-pink: #fdeced;
  --audio-prev-pink-text: #c0392b;
  --audio-prev-green: #eef9f1;
  --audio-prev-green-text: #27ae60;
  --audio-prev-shadow-out: 8px 8px 16px #d1d9e6, -8px -8px 16px #ffffff;
  --audio-prev-shadow-in: inset 6px 6px 12px #d1d9e6, inset -6px -6px 12px #ffffff;
  --audio-prev-shadow-sm: 4px 4px 8px #d1d9e6, -4px -4px 8px #ffffff;
  --font-display: 'Nunito', sans-serif;
  --font-body: 'Inter', sans-serif;
}

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

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

/* Scroll Progress Bar */
.aud-scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 4px;
  background-color: var(--audio-prev-accent);
  width: 0%;
  z-index: 10000;
  animation: progress-grow linear;
  animation-timeline: scroll();
}

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

/* Header & Navigation */
.aud-top-header {
  background-color: var(--audio-prev-surface);
  box-shadow: var(--audio-prev-shadow-out);
  position: sticky;
  top: 0;
  z-index: 999;
  padding: 1rem 2rem;
}

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

.aud-brand-anchor {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  text-decoration: none;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.4rem;
  color: var(--audio-prev-text);
}

.aud-brand-icon {
  width: 32px;
  height: 32px;
  fill: var(--audio-prev-accent);
}

.aud-nav-menu {
  display: flex;
  gap: 1.5rem;
  align-items: center;
}

.aud-nav-link {
  text-decoration: none;
  font-weight: 500;
  color: var(--audio-prev-text);
  padding: 0.5rem 1rem;
  border-radius: 12px;
  transition: all 0.3s ease;
}

.aud-nav-link:hover, .aud-nav-link.active {
  box-shadow: var(--audio-prev-shadow-in);
  color: var(--audio-prev-accent);
}

/* CSS-Only Mobile Menu */
.aud-menu-cb {
  display: none;
}

.aud-menu-trigger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 5px;
}

.aud-menu-trigger span {
  display: block;
  width: 25px;
  height: 3px;
  background-color: var(--audio-prev-text);
  border-radius: 3px;
  transition: 0.3s;
}

/* Hero Section */
.aud-primary-hero {
  padding: 10dvh 2rem;
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 4rem;
  align-items: center;
}

.aud-hero-briefcase {
  position: relative;
}

.aud-hero-title {
  font-family: var(--font-display);
  font-size: 3rem;
  font-weight: 900;
  line-height: 1.2;
  margin-bottom: 1.5rem;
  color: var(--audio-prev-text);
}

.aud-hero-description {
  font-size: 1.1rem;
  color: var(--audio-prev-text-muted);
  margin-bottom: 2rem;
}

.aud-cta-holder {
  display: flex;
  gap: 1rem;
}

.aud-btn-pill {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 1rem 2rem;
  font-family: var(--font-display);
  font-weight: 700;
  text-decoration: none;
  border-radius: 999px;
  transition: all 0.3s ease;
  border: none;
  cursor: pointer;
}

.aud-btn-accent {
  background-color: var(--audio-prev-accent);
  color: #ffffff;
  box-shadow: var(--audio-prev-shadow-out);
}

.aud-btn-accent:hover {
  background-color: var(--audio-prev-accent-hover);
  transform: translateY(-2px);
}

.aud-btn-neumorphic {
  background-color: var(--audio-prev-surface);
  color: var(--audio-prev-text);
  box-shadow: var(--audio-prev-shadow-out);
}

.aud-btn-neumorphic:hover {
  box-shadow: var(--audio-prev-shadow-in);
}

.aud-floating-badge {
  position: absolute;
  bottom: -20px;
  right: 10px;
  background-color: var(--audio-prev-surface);
  padding: 1rem;
  border-radius: 20px;
  box-shadow: var(--audio-prev-shadow-out);
  display: flex;
  align-items: center;
  gap: 0.75rem;
  z-index: 5;
}

.aud-badge-count {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--audio-prev-accent);
}

.aud-badge-text {
  font-size: 0.85rem;
  line-height: 1.2;
  font-weight: 600;
}

.aud-hero-frame {
  position: relative;
  border-radius: 32px;
  padding: 12px;
  background: var(--audio-prev-surface);
  box-shadow: var(--audio-prev-shadow-out);
}

.aud-hero-image {
  width: 100%;
  height: 450px;
  object-fit: cover;
  border-radius: 24px;
  display: block;
  box-shadow: var(--audio-prev-shadow-in);
}

/* Problem & Solution Layout */
.aud-dual-scenario-wrap {
  padding: 10dvh 2rem;
  max-width: 1200px;
  margin: 0 auto;
}

.aud-dual-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  margin-bottom: 4rem;
}

.aud-scenario-card {
  border-radius: 24px;
  padding: 2.5rem;
  box-shadow: var(--audio-prev-shadow-out);
}

.aud-scenario-card.aud-negative {
  background-color: var(--audio-prev-pink);
}

.aud-scenario-card.aud-positive {
  background-color: var(--audio-prev-green);
}

.aud-scenario-header {
  font-family: var(--font-display);
  font-size: 1.8rem;
  font-weight: 800;
  margin-bottom: 1.5rem;
}

.aud-negative .aud-scenario-header {
  color: var(--audio-prev-pink-text);
}

.aud-positive .aud-scenario-header {
  color: var(--audio-prev-green-text);
}

.aud-scenario-list {
  list-style: none;
}

.aud-scenario-item {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  margin-bottom: 1rem;
  font-size: 1.05rem;
}

.aud-scenario-marker {
  font-weight: bold;
  font-size: 1.2rem;
}

.aud-negative .aud-scenario-marker {
  color: var(--audio-prev-pink-text);
}

.aud-positive .aud-scenario-marker {
  color: var(--audio-prev-green-text);
}

.aud-full-ribbon {
  height: 40vh;
  position: relative;
  background-size: cover;
  background-position: center;
  background-attachment: fixed;
  border-radius: 32px;
  overflow: hidden;
  box-shadow: var(--audio-prev-shadow-out);
  margin-top: 2rem;
}

.aud-ribbon-overlay {
  position: absolute;
  inset: 0;
  background: rgba(47, 54, 64, 0.6);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem;
  text-align: center;
}

.aud-ribbon-message {
  font-family: var(--font-display);
  font-size: 2.2rem;
  color: #ffffff;
  font-weight: 800;
  max-width: 800px;
  text-shadow: 0 4px 10px rgba(0,0,0,0.3);
}

/* Features Grid (Neumorphic Grid) */
.aud-features-wrapper {
  padding: 10dvh 2rem;
  max-width: 1200px;
  margin: 0 auto;
}

.aud-section-heading-block {
  text-align: center;
  margin-bottom: 4rem;
}

.aud-pre-title {
  font-family: var(--font-display);
  color: var(--audio-prev-accent);
  text-transform: uppercase;
  font-weight: 800;
  letter-spacing: 1.5px;
  margin-bottom: 0.5rem;
  display: block;
}

.aud-section-heading {
  font-family: var(--font-display);
  font-size: 2.5rem;
  font-weight: 800;
}

.aud-features-matrix {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2.5rem;
}

.aud-feature-box {
  background-color: var(--audio-prev-surface);
  border-radius: 24px;
  padding: 2.5rem 2rem;
  box-shadow: var(--audio-prev-shadow-in);
  transition: all 0.3s ease;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.aud-feature-box:hover {
  box-shadow: var(--audio-prev-shadow-out);
  transform: translateY(-5px);
}

.aud-feature-icon-sphere {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background-color: var(--audio-prev-surface);
  box-shadow: var(--audio-prev-shadow-out);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.5rem;
}

.aud-feature-icon {
  width: 32px;
  height: 32px;
  fill: var(--audio-prev-accent);
}

.aud-feature-title {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 800;
  margin-bottom: 1rem;
}

.aud-feature-desc {
  color: var(--audio-prev-text-muted);
  font-size: 0.95rem;
}

/* How It Works (Neumorphic Stepper) */
.aud-stepper-outer {
  padding: 10dvh 2rem;
  max-width: 1200px;
  margin: 0 auto;
}

.aud-stepper-track {
  display: flex;
  justify-content: space-between;
  align-items: center;
  position: relative;
  margin-bottom: 3rem;
  padding: 1.5rem;
}

.aud-stepper-track::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 10%;
  right: 10%;
  height: 4px;
  background: var(--audio-prev-bg);
  box-shadow: var(--audio-prev-shadow-in);
  z-index: 1;
}

.aud-stepper-pill {
  position: relative;
  z-index: 2;
  background-color: var(--audio-prev-surface);
  box-shadow: var(--audio-prev-shadow-out);
  border-radius: 999px;
  padding: 0.8rem 1.8rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-family: var(--font-display);
}

.aud-step-number {
  color: var(--audio-prev-accent);
  font-weight: 900;
  font-size: 1.3rem;
}

.aud-step-label {
  font-weight: 700;
  color: var(--audio-prev-text);
  font-size: 0.95rem;
}

.aud-stepper-explanations {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2.5rem;
}

.aud-explain-card {
  background-color: var(--audio-prev-surface);
  box-shadow: var(--audio-prev-shadow-out);
  border-radius: 20px;
  padding: 2rem;
  text-align: center;
}

.aud-explain-title {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 800;
  margin-bottom: 0.75rem;
  color: var(--audio-prev-accent);
}

.aud-explain-text {
  color: var(--audio-prev-text-muted);
  font-size: 0.95rem;
}

/* CTA Strip (Centered Card) */
.aud-cta-envelope {
  padding: 10dvh 2rem;
  display: flex;
  justify-content: center;
}

.aud-cta-card {
  background-color: var(--audio-prev-surface);
  box-shadow: var(--audio-prev-shadow-out);
  border-radius: 32px;
  padding: 4rem 3rem;
  max-width: 800px;
  width: 100%;
  text-align: center;
  position: relative;
}

.aud-cta-heading {
  font-family: var(--font-display);
  font-size: 2.5rem;
  font-weight: 900;
  margin-bottom: 1rem;
}

.aud-cta-sub {
  font-size: 1.1rem;
  color: var(--audio-prev-text-muted);
  margin-bottom: 2rem;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

/* Expert Page Layout */
.aud-expert-bio-wrap {
  padding: 10dvh 2rem;
  max-width: 1200px;
  margin: 0 auto;
}

.aud-framed-centerpiece {
  display: flex;
  justify-content: center;
  margin-bottom: 4rem;
}

.aud-expert-portrait {
  max-width: 700px;
  width: 100%;
  border-radius: 32px;
  box-shadow: var(--audio-prev-shadow-out);
  padding: 12px;
  background-color: var(--audio-prev-surface);
}

.aud-portrait-img {
  width: 100%;
  height: 400px;
  object-fit: cover;
  border-radius: 20px;
  box-shadow: var(--audio-prev-shadow-in);
}

.aud-stats-grid-2x2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  margin-bottom: 4rem;
}

.aud-stat-neumorphic-box {
  background-color: var(--audio-prev-surface);
  box-shadow: var(--audio-prev-shadow-out);
  border-radius: 24px;
  padding: 2rem;
  text-align: center;
}

.aud-stat-large-val {
  font-family: var(--font-display);
  font-size: 3rem;
  font-weight: 900;
  color: var(--audio-prev-accent);
  margin-bottom: 0.5rem;
}

.aud-stat-label-val {
  font-weight: 600;
  color: var(--audio-prev-text);
}

.aud-articles-alternating {
  display: flex;
  flex-direction: column;
  gap: 4rem;
}

.aud-article-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.aud-article-row:nth-child(even) {
  direction: rtl;
}

.aud-article-row:nth-child(even) .aud-article-desc-pane {
  direction: ltr;
}

.aud-article-desc-pane {
  display: flex;
  flex-direction: column;
}

.aud-article-title {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 800;
  margin-bottom: 1rem;
}

.aud-article-p {
  color: var(--audio-prev-text-muted);
  font-size: 1.05rem;
  margin-bottom: 1.5rem;
}

/* Reserve Page Layout */
.aud-reservation-wrap {
  padding: 10dvh 2rem;
  max-width: 1200px;
  margin: 0 auto;
}

.aud-centered-form-envelope {
  max-width: 680px;
  margin: 0 auto 4rem auto;
  background-color: var(--audio-prev-surface);
  box-shadow: var(--audio-prev-shadow-out);
  border-radius: 32px;
  padding: 3.5rem;
}

.aud-form-block {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.aud-input-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.aud-field-label {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--audio-prev-text);
}

.aud-input-neumorphic {
  background-color: var(--audio-prev-surface);
  box-shadow: var(--audio-prev-shadow-in);
  border: none;
  border-radius: 12px;
  padding: 1rem;
  font-family: var(--font-body);
  font-size: 1rem;
  color: var(--audio-prev-text);
  outline: none;
  transition: all 0.3s ease;
}

.aud-input-neumorphic:focus {
  box-shadow: var(--audio-prev-shadow-out);
}

.aud-policy-checkbox-label {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  font-size: 0.9rem;
  color: var(--audio-prev-text-muted);
  cursor: pointer;
  user-select: none;
}

.aud-policy-checkbox-label input {
  margin-top: 0.2rem;
}

.aud-support-anchor {
  text-align: center;
  font-size: 0.95rem;
  color: var(--audio-prev-text-muted);
}

.aud-support-link {
  color: var(--audio-prev-accent);
  text-decoration: none;
  font-weight: 600;
}

.aud-support-link:hover {
  text-decoration: underline;
}

/* FAQ Accordion */
.aud-faq-container {
  max-width: 800px;
  margin: 4rem auto 0 auto;
}

.aud-faq-card {
  background-color: var(--audio-prev-surface);
  box-shadow: var(--audio-prev-shadow-out);
  border-radius: 16px;
  padding: 1.5rem;
  margin-bottom: 1.5rem;
}

.aud-faq-question {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 800;
  color: var(--audio-prev-text);
  margin-bottom: 0.5rem;
}

.aud-faq-answer {
  color: var(--audio-prev-text-muted);
  font-size: 0.95rem;
}

/* Static Pages Layout (Privacy / Terms) */
.aud-static-layout {
  padding: 10dvh 2rem;
  max-width: 800px;
  margin: 0 auto;
  min-height: 100vh;
}

.aud-static-container {
  background-color: var(--audio-prev-surface);
  box-shadow: var(--audio-prev-shadow-out);
  border-radius: 24px;
  padding: 3rem;
}

.aud-static-title {
  font-family: var(--font-display);
  font-size: 2.5rem;
  font-weight: 900;
  margin-bottom: 2rem;
}

.aud-static-block {
  margin-bottom: 2rem;
}

.aud-static-subtitle {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 800;
  margin-bottom: 1rem;
}

.aud-static-text {
  color: var(--audio-prev-text-muted);
  font-size: 1rem;
  line-height: 1.7;
}

/* Cookie Banner */
.aud-cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background-color: var(--audio-prev-surface);
  box-shadow: 0 -10px 30px rgba(0,0,0,0.05);
  border-top: 1px solid rgba(0,0,0,0.05);
  padding: 1.5rem 2rem;
  display: none;
  justify-content: space-between;
  align-items: center;
  z-index: 9999;
  gap: 2rem;
}

.aud-cookie-message {
  font-size: 0.95rem;
  color: var(--audio-prev-text);
}

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

/* Footer Section */
.aud-base-footer {
  background-color: var(--audio-prev-surface);
  box-shadow: 0 -8px 24px rgba(0,0,0,0.03);
  padding: 4rem 2rem 2rem 2rem;
  border-top: 1px solid rgba(0,0,0,0.05);
}

.aud-footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 2.5rem;
  align-items: center;
  text-align: center;
}

.aud-footer-nav {
  display: flex;
  gap: 2rem;
  flex-wrap: wrap;
  justify-content: center;
}

.aud-footer-link {
  text-decoration: none;
  font-weight: 500;
  color: var(--audio-prev-text-muted);
  transition: color 0.3s ease;
}

.aud-footer-link:hover {
  color: var(--audio-prev-accent);
}

.aud-footer-disclaimer {
  max-width: 800px;
  font-size: 0.85rem;
  color: var(--audio-prev-text-muted);
  line-height: 1.5;
  border-top: 1px dashed rgba(0,0,0,0.1);
  padding-top: 1.5rem;
}

.aud-copyright-bar {
  font-size: 0.85rem;
  color: var(--audio-prev-text-muted);
}

/* Responsive Rules */
@media (max-width: 991px) {
  .aud-primary-hero {
    grid-template-columns: 1fr;
    gap: 3rem;
    text-align: center;
  }
  
  .aud-cta-holder {
    justify-content: center;
  }
  
  .aud-dual-grid {
    grid-template-columns: 1fr;
  }
  
  .aud-features-matrix {
    grid-template-columns: 1fr;
  }
  
  .aud-stepper-track {
    display: none; /* Hide track visual on mobile */
  }
  
  .aud-stepper-explanations {
    grid-template-columns: 1fr;
  }
  
  .aud-article-row {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  
  .aud-article-row:nth-child(even) {
    direction: ltr;
  }
}

@media (max-width: 768px) {
  .aud-menu-trigger {
    display: flex;
    z-index: 1001;
  }
  
  .aud-nav-menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 80%;
    max-width: 300px;
    height: 100vh;
    background-color: var(--audio-prev-surface);
    box-shadow: -10px 0 30px rgba(0,0,0,0.1);
    flex-direction: column;
    justify-content: center;
    gap: 2rem;
    transition: 0.4s ease;
    z-index: 1000;
  }
  
  .aud-menu-cb:checked ~ .aud-nav-menu {
    right: 0;
  }
  
  .aud-menu-cb:checked ~ .aud-menu-trigger span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 6px);
  }
  
  .aud-menu-cb:checked ~ .aud-menu-trigger span:nth-child(2) {
    opacity: 0;
  }
  
  .aud-menu-cb:checked ~ .aud-menu-trigger span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -6px);
  }
  
  .aud-cookie-banner {
    flex-direction: column;
    text-align: center;
  }
  
  .aud-stats-grid-2x2 {
    grid-template-columns: 1fr;
  }
}