:root {
  --bg: #f0f0f0;
  --fg: #121212;
  --red: #d02020;
  --blue: #1040c0;
  --yellow: #f0c020;
  --muted: #e0e0e0;
  --white: #ffffff;
  --shadow-sm: 4px 4px 0 0 var(--fg);
  --shadow-md: 6px 6px 0 0 var(--fg);
  --shadow-lg: 8px 8px 0 0 var(--fg);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  min-width: 320px;
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: "Outfit", Arial, sans-serif;
  font-size: 1rem;
  line-height: 1.55;
  text-rendering: optimizeLegibility;
}

a {
  color: inherit;
}

button,
a {
  -webkit-tap-highlight-color: transparent;
}

button {
  font: inherit;
}

::selection {
  background: var(--fg);
  color: var(--white);
}

.skip-link {
  position: fixed;
  top: 16px;
  left: 16px;
  z-index: 50;
  padding: 12px 16px;
  border: 2px solid var(--fg);
  background: var(--yellow);
  color: var(--fg);
  font-weight: 900;
  text-decoration: none;
  text-transform: uppercase;
  transform: translateY(-160%);
}

.skip-link:focus {
  transform: translateY(0);
  outline: 3px solid var(--fg);
  outline-offset: 3px;
}

.bau-header {
  position: sticky;
  top: 0;
  z-index: 20;
  border-bottom: 4px solid var(--fg);
  background: var(--white);
}

.bau-nav,
.hero-section,
.feature-section,
.product-section,
.process-section,
.benefits-section,
.journal-section,
.pricing-section,
.faq-section,
.final-content {
  width: min(1280px, calc(100% - 32px));
  margin-inline: auto;
}

.bau-nav {
  min-height: 82px;
  display: grid;
  grid-template-columns: auto 1fr auto auto;
  align-items: center;
  gap: 24px;
}

.bau-brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--fg);
  font-size: 1.2rem;
  font-weight: 900;
  letter-spacing: 0;
  text-decoration: none;
  text-transform: uppercase;
}

.logo-shapes {
  width: 62px;
  height: 30px;
  display: inline-grid;
  grid-template-columns: repeat(3, 1fr);
  align-items: center;
  gap: 5px;
}

.shape {
  display: inline-block;
  border: 2px solid var(--fg);
}

.circle {
  border-radius: 50%;
}

.square {
  border-radius: 0;
}

.triangle {
  border-radius: 0;
  clip-path: polygon(50% 0%, 0% 100%, 100% 100%);
}

.red {
  background: var(--red);
}

.blue {
  background: var(--blue);
}

.yellow {
  background: var(--yellow);
}

.white {
  background: var(--white);
}

.logo-shapes .shape {
  width: 18px;
  height: 18px;
}

.bau-menu {
  display: flex;
  justify-content: center;
  gap: 26px;
}

.bau-menu a {
  font-weight: 900;
  text-decoration: none;
  text-transform: uppercase;
}

.bau-menu a:hover,
.bau-menu a:focus-visible {
  color: var(--red);
  outline: none;
}

.menu-toggle {
  display: none;
  min-height: 44px;
  border: 2px solid var(--fg);
  background: var(--white);
  box-shadow: var(--shadow-sm);
  cursor: pointer;
  font-weight: 900;
  text-transform: uppercase;
}

.button {
  min-height: 48px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 2px solid var(--fg);
  padding: 12px 22px;
  box-shadow: var(--shadow-sm);
  color: var(--fg);
  cursor: pointer;
  font-weight: 900;
  letter-spacing: 0;
  text-decoration: none;
  text-transform: uppercase;
  transition: transform 200ms ease-out, box-shadow 200ms ease-out, opacity 200ms ease-out;
}

.button:hover,
.button:focus-visible,
.menu-toggle:hover,
.menu-toggle:focus-visible {
  opacity: 0.92;
  outline: 3px solid var(--fg);
  outline-offset: 3px;
}

.button:active,
.menu-toggle:active {
  box-shadow: none;
  transform: translate(2px, 2px);
}

.button-red {
  background: var(--red);
  color: var(--white);
}

.button-blue {
  background: var(--blue);
  color: var(--white);
}

.button-yellow {
  background: var(--yellow);
}

.button-outline {
  background: var(--white);
}

.hero-section {
  min-height: calc(100svh - 86px);
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(340px, 0.9fr);
  gap: 32px;
  align-items: stretch;
  padding-block: 56px;
}

.hero-copy {
  display: grid;
  align-content: center;
  border: 4px solid var(--fg);
  background:
    radial-gradient(var(--fg) 2px, transparent 2px),
    var(--white);
  background-size: 20px 20px;
  padding: 42px;
  box-shadow: var(--shadow-lg);
}

.label {
  margin: 0 0 18px;
  font-size: 0.82rem;
  font-weight: 900;
  letter-spacing: 0;
  text-transform: uppercase;
}

.hero-copy h1,
.section-heading h2,
.product-copy h2,
.final-content h2 {
  margin: 0;
  font-weight: 900;
  letter-spacing: 0;
  line-height: 0.9;
  text-transform: uppercase;
}

.hero-copy h1 {
  font-size: 7.6rem;
}

.hero-text {
  max-width: 680px;
  margin: 28px 0 0;
  font-size: 1.18rem;
  font-weight: 500;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 32px;
}

.hero-composition {
  position: relative;
  min-height: 620px;
  overflow: hidden;
  border: 4px solid var(--fg);
  background:
    radial-gradient(var(--white) 2px, transparent 2px),
    var(--blue);
  background-size: 20px 20px;
  box-shadow: var(--shadow-lg);
}

.hero-composition .shape {
  position: absolute;
  border-width: 4px;
  box-shadow: var(--shadow-md);
}

.hero-circle {
  top: 58px;
  right: 46px;
  width: 230px;
  height: 230px;
}

.hero-square {
  left: 54px;
  top: 118px;
  width: 210px;
  height: 210px;
  transform: rotate(45deg);
}

.hero-center {
  right: 86px;
  bottom: 112px;
  width: 220px;
  height: 220px;
}

.hero-triangle {
  right: 128px;
  bottom: 160px;
  width: 120px;
  height: 112px;
}

.composition-line {
  position: absolute;
  left: 74px;
  bottom: 94px;
  width: 72%;
  height: 0;
  border-top: 12px solid var(--fg);
  transform: rotate(-15deg);
}

.stats-section {
  border-block: 4px solid var(--fg);
  background: var(--yellow);
}

.stats-grid {
  width: min(1280px, 100%);
  margin-inline: auto;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  border-left: 4px solid var(--fg);
}

.stats-grid div {
  min-height: 260px;
  display: grid;
  align-content: center;
  gap: 12px;
  border-right: 4px solid var(--fg);
  padding: 26px;
}

.stat-shape {
  width: 54px;
  height: 54px;
  display: grid;
  place-items: center;
  border: 3px solid var(--fg);
  color: var(--fg);
  font-size: 0.9rem;
  font-weight: 900;
}

.diamond {
  transform: rotate(45deg);
}

.diamond::first-line {
  transform: rotate(-45deg);
}

.stats-grid strong {
  font-size: 4.5rem;
  font-weight: 900;
  line-height: 0.9;
}

.stats-grid p {
  margin: 0;
  font-weight: 900;
  text-transform: uppercase;
}

.feature-section,
.process-section,
.pricing-section,
.faq-section {
  padding-block: 92px;
  border-bottom: 4px solid var(--fg);
}

.section-heading {
  max-width: 760px;
  margin-bottom: 36px;
}

.section-heading h2,
.product-copy h2,
.final-content h2 {
  font-size: 4.5rem;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 22px;
}

.bau-card,
.price-card,
.accordion-item {
  position: relative;
  border: 4px solid var(--fg);
  background: var(--white);
  box-shadow: var(--shadow-lg);
}

.bau-card {
  min-height: 390px;
  padding: 30px;
  transition: transform 200ms ease-out;
}

.bau-card:hover,
.price-card:hover,
.journal-card:hover {
  transform: translateY(-6px);
}

.corner-dot {
  position: absolute;
  top: 18px;
  right: 18px;
  width: 18px;
  height: 18px;
  border: 2px solid var(--fg);
}

.icon-box {
  width: 82px;
  height: 82px;
  display: grid;
  place-items: center;
  border: 4px solid var(--fg);
  background: var(--white);
  box-shadow: var(--shadow-sm);
}

.icon-box .shape {
  width: 40px;
  height: 40px;
  border-width: 3px;
}

.bau-card h3,
.process-grid h3,
.journal-card h3,
.price-card h3 {
  margin: 64px 0 14px;
  font-size: 2rem;
  font-weight: 900;
  line-height: 1;
  text-transform: uppercase;
}

.bau-card p,
.product-copy p,
.process-grid p,
.benefit-grid p,
.price-card p,
.accordion-panel p {
  margin: 0;
  font-weight: 500;
}

.product-section {
  display: grid;
  grid-template-columns: minmax(320px, 0.9fr) minmax(0, 1.1fr);
  gap: 34px;
  padding-block: 92px;
  border-bottom: 4px solid var(--fg);
}

.product-face {
  position: relative;
  min-height: 480px;
  border: 4px solid var(--fg);
  background: var(--yellow);
  box-shadow: var(--shadow-lg);
}

.face-eye,
.face-nose,
.face-line {
  position: absolute;
  display: block;
  border: 4px solid var(--fg);
  box-shadow: var(--shadow-sm);
}

.face-eye {
  width: 116px;
  height: 116px;
}

.face-eye.circle {
  top: 76px;
  left: 74px;
}

.face-eye.square {
  top: 86px;
  right: 88px;
}

.face-nose {
  left: 50%;
  top: 190px;
  width: 140px;
  height: 130px;
  transform: translateX(-50%);
}

.face-line {
  left: 84px;
  right: 72px;
  bottom: 104px;
  height: 0;
  border-width: 0;
  border-top: 12px solid var(--fg);
  box-shadow: none;
  transform: rotate(-10deg);
}

.product-copy {
  display: grid;
  align-content: center;
  border: 4px solid var(--fg);
  background: var(--white);
  box-shadow: var(--shadow-lg);
  padding: 38px;
}

.product-copy p {
  margin: 24px 0 28px;
  font-size: 1.12rem;
}

.product-copy .button {
  width: fit-content;
}

.process-section {
  background:
    repeating-linear-gradient(
      45deg,
      transparent,
      transparent 40px,
      rgba(18, 18, 18, 0.08) 40px,
      rgba(18, 18, 18, 0.08) 42px
    ),
    var(--bg);
}

.process-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
}

.process-grid article {
  min-height: 300px;
  border: 4px solid var(--fg);
  background: var(--white);
  box-shadow: var(--shadow-md);
  padding: 26px;
}

.process-grid span {
  width: 72px;
  height: 72px;
  display: grid;
  place-items: center;
  border: 4px solid var(--fg);
  background: var(--red);
  color: var(--white);
  box-shadow: var(--shadow-sm);
  transform: rotate(45deg);
}

.process-grid b {
  display: block;
  font-size: 1.4rem;
  transform: rotate(-45deg);
}

.benefits-section {
  padding-block: 92px;
  border-bottom: 4px solid var(--fg);
  background: var(--red);
  color: var(--white);
}

.section-heading-invert {
  color: inherit;
}

.benefit-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 22px;
}

.benefit-grid article {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 18px;
  align-items: start;
  border: 4px solid var(--fg);
  background: var(--white);
  color: var(--fg);
  box-shadow: var(--shadow-lg);
  padding: 24px;
}

.benefit-grid span {
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  border: 3px solid var(--fg);
  border-radius: 50%;
  background: var(--yellow);
  font-weight: 900;
}

.journal-section {
  padding-block: 92px;
  border-bottom: 4px solid var(--fg);
  background: var(--blue);
  color: var(--white);
}

.journal-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 22px;
}

.journal-card {
  border: 4px solid var(--fg);
  background: var(--white);
  color: var(--fg);
  box-shadow: var(--shadow-lg);
  padding: 24px;
  transition: transform 200ms ease-out;
}

.journal-image {
  min-height: 190px;
  border: 4px solid var(--fg);
  background: var(--muted);
  filter: grayscale(1);
  transition: filter 200ms ease-out, transform 200ms ease-out;
}

.journal-card:hover .journal-image {
  filter: grayscale(0);
  transform: scale(1.03);
}

.journal-circle {
  border-radius: 50%;
  background: var(--red);
}

.journal-square {
  background: var(--yellow);
}

.journal-triangle {
  background: var(--blue);
  clip-path: polygon(50% 0%, 0% 100%, 100% 100%);
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 22px;
  align-items: center;
}

.price-card {
  min-height: 430px;
  display: flex;
  flex-direction: column;
  padding: 30px;
  transition: transform 200ms ease-out;
}

.price-card-featured {
  min-height: 500px;
  background: var(--yellow);
}

.price-card h3 {
  margin-top: 40px;
}

.price-card strong {
  display: block;
  margin: 6px 0 20px;
  font-size: 4.5rem;
  font-weight: 900;
  line-height: 1;
}

.price-card .button {
  margin-top: auto;
}

.faq-section {
  background: var(--bg);
}

.accordion-list {
  display: grid;
  gap: 18px;
}

.accordion-trigger {
  width: 100%;
  min-height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  border: 0;
  background: var(--white);
  color: var(--fg);
  cursor: pointer;
  padding: 20px 24px;
  font-size: 1.2rem;
  font-weight: 900;
  text-align: left;
  text-transform: uppercase;
}

.accordion-trigger:focus-visible {
  outline: 3px solid var(--fg);
  outline-offset: 3px;
}

.accordion-trigger span {
  font-size: 2rem;
  line-height: 1;
  transition: transform 200ms ease-out;
}

.accordion-panel {
  display: none;
  border-top: 4px solid var(--fg);
  background: #fff9c4;
  padding: 22px 24px;
}

.accordion-item.open .accordion-trigger {
  background: var(--red);
  color: var(--white);
}

.accordion-item.open .accordion-trigger span {
  transform: rotate(45deg);
}

.accordion-item.open .accordion-panel {
  display: block;
}

.final-section {
  position: relative;
  overflow: hidden;
  padding-block: 106px;
  border-bottom: 4px solid var(--fg);
  background: var(--yellow);
}

.final-shape {
  position: absolute;
  display: block;
  border: 4px solid var(--fg);
  opacity: 0.5;
}

.final-circle {
  top: -80px;
  left: -80px;
  width: 260px;
  height: 260px;
  border-radius: 50%;
  background: var(--red);
}

.final-square {
  right: -70px;
  bottom: -80px;
  width: 240px;
  height: 240px;
  background: var(--blue);
  transform: rotate(45deg);
}

.final-content {
  position: relative;
  z-index: 1;
}

.final-content h2 {
  max-width: 820px;
  font-size: 5.7rem;
}

.final-content .button {
  margin-top: 32px;
}

.bau-footer {
  min-height: 96px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  background: var(--fg);
  color: var(--white);
  padding: 28px max(20px, calc((100% - 1280px) / 2));
  font-weight: 900;
  text-transform: uppercase;
}

.bau-footer a {
  text-decoration: none;
}

.bau-footer a:hover,
.bau-footer a:focus-visible {
  color: var(--yellow);
  outline: none;
}

@media (max-width: 1060px) {
  .hero-section,
  .product-section {
    grid-template-columns: 1fr;
  }

  .hero-copy h1 {
    font-size: 5.8rem;
  }

  .feature-grid,
  .benefit-grid,
  .journal-grid,
  .pricing-grid {
    grid-template-columns: 1fr;
  }

  .process-grid,
  .stats-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .price-card-featured {
    min-height: 430px;
  }
}

@media (max-width: 760px) {
  .bau-nav {
    grid-template-columns: 1fr auto;
    padding-block: 14px;
  }

  .menu-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding-inline: 16px;
  }

  .bau-menu {
    display: none;
    grid-column: 1 / -1;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    border: 4px solid var(--fg);
    background: var(--white);
    box-shadow: var(--shadow-sm);
  }

  .bau-menu.open {
    display: flex;
  }

  .bau-menu a {
    border-bottom: 2px solid var(--fg);
    padding: 14px 16px;
  }

  .bau-menu a:last-child {
    border-bottom: 0;
  }

  .nav-cta {
    grid-column: 1 / -1;
    width: fit-content;
  }

  .hero-section {
    min-height: auto;
    padding-block: 34px;
  }

  .hero-copy {
    padding: 28px;
  }

  .hero-copy h1 {
    font-size: 4rem;
  }

  .hero-actions,
  .hero-actions .button {
    width: 100%;
  }

  .hero-composition {
    min-height: 430px;
  }

  .hero-circle {
    width: 160px;
    height: 160px;
  }

  .hero-square,
  .hero-center {
    width: 145px;
    height: 145px;
  }

  .hero-triangle {
    width: 92px;
    height: 86px;
  }

  .stats-grid,
  .process-grid {
    grid-template-columns: 1fr;
  }

  .feature-section,
  .product-section,
  .process-section,
  .benefits-section,
  .journal-section,
  .pricing-section,
  .faq-section {
    padding-block: 62px;
  }

  .section-heading h2,
  .product-copy h2,
  .final-content h2 {
    font-size: 3rem;
  }

  .product-face {
    min-height: 360px;
  }

  .face-eye {
    width: 86px;
    height: 86px;
  }

  .face-eye.circle {
    left: 42px;
  }

  .face-eye.square {
    right: 48px;
  }

  .face-nose {
    width: 112px;
    height: 104px;
  }

  .benefit-grid article {
    grid-template-columns: 1fr;
  }

  .final-content h2 {
    font-size: 3.35rem;
  }

  .bau-footer {
    align-items: flex-start;
    flex-direction: column;
  }
}

@media (max-width: 430px) {
  .hero-copy h1 {
    font-size: 3.1rem;
  }

  .section-heading h2,
  .product-copy h2,
  .final-content h2 {
    font-size: 2.5rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }
}