@import url('https://fonts.googleapis.com/css2?family=Oswald:wght@400;700&family=Work+Sans:wght@300;400;600&display=swap');

:root {
  --acoustic-bg: #FCFBFA;
  --acoustic-surface: #F5F3F0;
  --acoustic-accent: #C85A17;
  --acoustic-dark: #111111;
  --acoustic-muted: #666666;
  --acoustic-border: #111111;
  --acoustic-font-display: 'Oswald', sans-serif;
  --acoustic-font-body: 'Work Sans', sans-serif;
}

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

body {
  background-color: var(--acoustic-bg);
  color: var(--acoustic-dark);
  font-family: var(--acoustic-font-body);
  font-size: 16px;
  line-height: 1.6;
  overflow-x: hidden;
}

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

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

/* Header & Navigation */
.acoustic-header-outer {
  background-color: var(--acoustic-bg);
  border-bottom: 2px solid var(--acoustic-border);
  position: sticky;
  top: 0;
  z-index: 999;
  width: 100%;
}

.acoustic-header-inner {
  max-width: 1300px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.5rem 2rem;
}

.acoustic-brand-anchor {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
  color: var(--acoustic-dark);
}

.acoustic-brand-logo {
  width: 32px;
  height: 32px;
  fill: var(--acoustic-accent);
}

.acoustic-brand-title {
  font-family: var(--acoustic-font-display);
  font-size: 1.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: -1px;
}

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

.acoustic-hamburger-btn {
  display: none;
  flex-direction: column;
  gap: 6px;
  cursor: pointer;
  background: none;
  border: none;
  z-index: 1001;
}

.acoustic-hamburger-btn span {
  display: block;
  width: 28px;
  height: 3px;
  background-color: var(--acoustic-dark);
}

.acoustic-nav-menu {
  display: flex;
  gap: 2.5rem;
  align-items: center;
}

.acoustic-nav-link {
  text-decoration: none;
  color: var(--acoustic-dark);
  font-weight: 600;
  text-transform: uppercase;
  font-size: 0.85rem;
  letter-spacing: 1px;
  position: relative;
  transition: color 0.2s ease;
}

.acoustic-nav-link:hover {
  color: var(--acoustic-accent);
}

.acoustic-nav-link::after {
  content: '';
  position: absolute;
  width: 0;
  height: 2px;
  bottom: -4px;
  left: 0;
  background-color: var(--acoustic-accent);
  transition: width 0.25s ease;
}

.acoustic-nav-link:hover::after {
  width: 100%;
}

/* Sections */
.acoustic-section-pad {
  padding-top: 16dvh;
  padding-bottom: 16dvh;
}

.acoustic-asymmetric-wrapper {
  max-width: 1300px;
  margin: 0 auto;
  padding-left: 2rem;
  padding-right: 2rem;
}

/* Hero Section (Preset H - Word-by-word) */
.acoustic-hero-wrapper {
  position: relative;
  background-image: linear-gradient(rgba(252,251,250,0.92), rgba(252,251,250,0.92)), url('img/bg.webp');
  background-size: cover;
  background-position: center;
}

.acoustic-word-stack {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  margin-bottom: 4rem;
}

.acoustic-hero-word {
  font-family: var(--acoustic-font-display);
  font-size: clamp(3.5rem, 9vw, 8rem);
  font-weight: 700;
  line-height: 0.9;
  text-transform: uppercase;
}

.acoustic-word-left {
  align-self: flex-start;
  text-align: left;
}

.acoustic-word-center {
  align-self: center;
  text-align: center;
}

.acoustic-word-right {
  align-self: flex-end;
  text-align: right;
  color: var(--acoustic-accent);
  border-bottom: 8px solid var(--acoustic-dark);
}

.acoustic-hero-meta {
  max-width: 600px;
  margin-top: 2rem;
}

.acoustic-hero-sub {
  font-size: 1.25rem;
  color: var(--acoustic-muted);
  margin-bottom: 2rem;
}

/* Buttons */
.acoustic-accent-btn {
  display: inline-block;
  padding: 1rem 2rem;
  border: 2px solid var(--acoustic-border);
  background-color: var(--acoustic-accent);
  color: var(--acoustic-bg);
  text-decoration: none;
  font-family: var(--acoustic-font-display);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  border-radius: 2px;
  transition: all 0.25s ease;
}

.acoustic-accent-btn:hover {
  background-color: var(--acoustic-bg);
  color: var(--acoustic-dark);
}

.acoustic-ghost-btn {
  display: inline-block;
  padding: 1rem 2rem;
  border: 2px solid var(--acoustic-border);
  background-color: transparent;
  color: var(--acoustic-dark);
  text-decoration: none;
  font-family: var(--acoustic-font-display);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  border-radius: 2px;
  transition: all 0.25s ease;
}

.acoustic-ghost-btn:hover {
  background-color: var(--acoustic-dark);
  color: var(--acoustic-bg);
}

/* 3-Col Masonry Content */
.acoustic-masonry-grid {
  columns: 3 300px;
  column-gap: 3rem;
  column-rule: 1.5px solid var(--acoustic-border);
}

.acoustic-masonry-card {
  break-inside: avoid;
  margin-bottom: 3rem;
}

.acoustic-masonry-heading {
  font-family: var(--acoustic-font-display);
  font-size: 2rem;
  text-transform: uppercase;
  margin-bottom: 1rem;
}

.acoustic-masonry-icon {
  width: 24px;
  height: 24px;
  fill: var(--acoustic-accent);
  margin-top: 1rem;
}

/* Background Image Feature Overlay */
.acoustic-parallax-overlay {
  background-image: linear-gradient(rgba(17,17,17,0.7), rgba(17,17,17,0.7)), url('img/bg2.webp');
  background-size: cover;
  background-position: center;
  color: var(--acoustic-bg);
}

.acoustic-parallax-content {
  max-width: 800px;
  text-align: left;
}

.acoustic-parallax-title {
  font-family: var(--acoustic-font-display);
  font-size: clamp(2.5rem, 5vw, 4.5rem);
  text-transform: uppercase;
  line-height: 1;
  margin-bottom: 2rem;
}

/* Inline Manifesto-style features */
.acoustic-manifesto-list {
  display: flex;
  flex-direction: column;
}

.acoustic-manifesto-block {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 2rem;
  padding: 2.5rem 0;
  border-bottom: 1.5px solid var(--acoustic-border);
}

.acoustic-manifesto-block:last-child {
  border-bottom: none;
}

.acoustic-manifesto-index {
  font-family: var(--acoustic-font-display);
  font-size: 2rem;
  color: var(--acoustic-accent);
  min-width: 40px;
}

.acoustic-manifesto-core {
  flex-grow: 1;
}

.acoustic-manifesto-title {
  font-family: var(--acoustic-font-display);
  font-size: 1.6rem;
  text-transform: uppercase;
  display: inline-block;
  margin-right: 1rem;
}

.acoustic-manifesto-desc {
  color: var(--acoustic-muted);
}

/* Rotated step numbers (Asymmetric Process) */
.acoustic-stepper-asymmetric {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 4rem;
  margin-top: 4rem;
}

.acoustic-step-card {
  position: relative;
  padding-top: 3rem;
}

.acoustic-step-bg-num {
  position: absolute;
  top: -1.5rem;
  left: -0.5rem;
  font-family: var(--acoustic-font-display);
  font-size: 7rem;
  font-weight: 700;
  opacity: 0.12;
  transform: rotate(-12deg);
  pointer-events: none;
  color: var(--acoustic-accent);
}

.acoustic-step-front-title {
  font-family: var(--acoustic-font-display);
  font-size: 1.5rem;
  text-transform: uppercase;
  margin-bottom: 1rem;
}

/* CTA Asymmetric Stripe */
.acoustic-cta-strip {
  background-color: var(--acoustic-surface);
  border-top: 2px solid var(--acoustic-border);
  border-bottom: 2px solid var(--acoustic-border);
}

.acoustic-cta-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 3rem;
  flex-wrap: wrap;
}

.acoustic-cta-header {
  font-family: var(--acoustic-font-display);
  font-size: clamp(2rem, 4vw, 3.5rem);
  text-transform: uppercase;
  line-height: 1.1;
  max-width: 700px;
}

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

.acoustic-expert-profile-space {
  display: flex;
  flex-direction: column;
}

.acoustic-expert-dropcap::first-letter {
  font-family: var(--acoustic-font-display);
  font-size: 5.5rem;
  float: left;
  line-height: 0.8;
  padding-right: 0.75rem;
  color: var(--acoustic-accent);
  text-transform: uppercase;
}

.acoustic-expert-asset {
  width: 100%;
  height: 600px;
  object-fit: cover;
  border: 2px solid var(--acoustic-border);
}

/* plain stats layout */
.acoustic-stats-line {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 3rem;
  border-top: 2px solid var(--acoustic-border);
  border-bottom: 2px solid var(--acoustic-border);
  padding: 3rem 0;
  margin: 4rem 0;
}

.acoustic-stat-plain {
  text-align: left;
}

.acoustic-stat-num {
  font-family: var(--acoustic-font-display);
  font-size: 3.5rem;
  font-weight: 700;
  color: var(--acoustic-accent);
}

.acoustic-stat-tag {
  font-size: 1rem;
  font-weight: 600;
  text-transform: uppercase;
}

/* Forms (Underline-only) */
.acoustic-form-container {
  max-width: 650px;
  margin: 0 auto;
}

.acoustic-input-group {
  margin-bottom: 2.5rem;
}

.acoustic-input-field {
  width: 100%;
  border: none;
  border-bottom: 2px solid var(--acoustic-border);
  background: transparent;
  padding: 0.75rem 0;
  font-family: var(--acoustic-font-body);
  font-size: 1.1rem;
  color: var(--acoustic-dark);
  transition: border-color 0.25s ease;
}

.acoustic-input-field:focus {
  outline: none;
  border-bottom-color: var(--acoustic-accent);
}

.acoustic-checkbox-group {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  margin-bottom: 2.5rem;
}

.acoustic-checkbox-input {
  margin-top: 0.25rem;
  accent-color: var(--acoustic-accent);
}

.acoustic-reserve-columns {
  display: grid;
  grid-template-columns: 1fr;
  gap: 4rem;
}

/* FAQ Stack */
.acoustic-faq-stack {
  margin-top: 5rem;
}

.acoustic-faq-item {
  border-bottom: 1.5px solid var(--acoustic-border);
  padding: 2rem 0;
}

.acoustic-faq-question {
  font-family: var(--acoustic-font-display);
  font-size: 1.4rem;
  text-transform: uppercase;
  margin-bottom: 0.75rem;
}

.acoustic-faq-answer {
  color: var(--acoustic-muted);
}

/* Footer Section */
.acoustic-footer-parent {
  background-color: var(--acoustic-dark);
  color: var(--acoustic-bg);
  border-top: 4px solid var(--acoustic-accent);
  padding-top: 10dvh;
  padding-bottom: 5dvh;
}

.acoustic-footer-grid {
  max-width: 1300px;
  margin: 0 auto;
  padding: 0 2rem;
  display: flex;
  flex-direction: column;
  gap: 4rem;
}

.acoustic-footer-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 3rem;
}

.acoustic-footer-desc {
  max-width: 320px;
  color: #999999;
  font-size: 0.9rem;
}

.acoustic-footer-links {
  display: flex;
  gap: 3rem;
  flex-wrap: wrap;
}

.acoustic-footer-link-block {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.acoustic-foot-link {
  color: #CCCCCC;
  text-decoration: none;
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  transition: color 0.2s ease;
}

.acoustic-foot-link:hover {
  color: var(--acoustic-accent);
}

.acoustic-footer-bottom {
  border-top: 1px solid #333333;
  padding-top: 2.5rem;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.acoustic-disclaimer-p {
  color: #888888;
  font-size: 0.8rem;
  line-height: 1.5;
}

.acoustic-copyright-p {
  color: #666666;
  font-size: 0.75rem;
}

.acoustic-logo-svg-white {
  width: 32px;
  height: 32px;
  fill: var(--acoustic-accent);
}

/* Cookies Pop-Up */
.acoustic-cookies-outer {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background-color: var(--acoustic-dark);
  color: var(--acoustic-bg);
  border-top: 3px solid var(--acoustic-accent);
  padding: 1.5rem;
  z-index: 9999;
  display: none;
}

.acoustic-cookies-inner {
  max-width: 1300px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 2rem;
  flex-wrap: wrap;
}

.acoustic-cookie-text {
  font-size: 0.9rem;
  max-width: 800px;
}

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

.acoustic-btn-accept {
  padding: 0.5rem 1.5rem;
  border: 1.5px solid var(--acoustic-accent);
  background-color: var(--acoustic-accent);
  color: var(--acoustic-bg);
  font-family: var(--acoustic-font-display);
  font-weight: 700;
  text-transform: uppercase;
  cursor: pointer;
}

.acoustic-btn-decline {
  padding: 0.5rem 1.5rem;
  border: 1.5px solid #666666;
  background-color: transparent;
  color: #CCCCCC;
  font-family: var(--acoustic-font-display);
  font-weight: 700;
  text-transform: uppercase;
  cursor: pointer;
}

/* Scroll Animations */
.acoustic-scroll-reveal {
  animation: acoustic-reveal linear both;
  animation-timeline: view();
  animation-range: entry 10% cover 40%;
}

@keyframes acoustic-reveal {
  from {
    opacity: 0;
    transform: translateY(50px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Responsive Styles */
@media (max-width: 991px) {
  .acoustic-expert-layout {
    grid-template-columns: 1fr;
  }
  .acoustic-expert-asset {
    height: 400px;
  }
}

@media (max-width: 768px) {
  .acoustic-hamburger-btn {
    display: flex;
  }

  .acoustic-nav-menu {
    position: fixed;
    top: 80px;
    left: -100%;
    width: 100%;
    height: calc(100vh - 80px);
    background-color: var(--acoustic-bg);
    flex-direction: column;
    padding: 4rem 2rem;
    gap: 3rem;
    transition: left 0.3s ease;
    border-top: 2px solid var(--acoustic-border);
  }

  .acoustic-menu-toggle:checked ~ .acoustic-nav-menu {
    left: 0;
  }

  .acoustic-section-pad {
    padding-top: 10dvh;
    padding-bottom: 10dvh;
  }

  .acoustic-word-right {
    border-bottom-width: 4px;
  }

  .acoustic-manifesto-block {
    flex-direction: column;
    gap: 0.5rem;
  }
}