:root {
  --font-primary: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    Helvetica, Arial, sans-serif;
  --font-secondary: "Roboto Slab", serif;

  --color-text-light: #1a1d2c;
  --color-text-medium: #4a4e69;
  --color-text-subtle: #9a8c98;
  --color-background-light: #f8f7ff;
  --color-surface-light: #ffffff;
  --color-primary-light: #6a5ae0;
  --color-primary-dark-light: #4a40a3;
  --color-secondary-light: #c2bbe8;
  --color-accent-light: #e07a5f;
  --color-border-light: #e6e3f3;

  --color-text-dark: #e8e6e3;
  --color-text-medium-dark: #a8a29e;
  --color-text-subtle-dark: #78716c;
  --color-background-dark: #1c1917;
  --color-surface-dark: #292524;
  --color-primary-dark: #8b80f2;
  --color-primary-dark-dark: #a399ff;
  --color-secondary-dark: #444059;
  --color-accent-dark: #f28482;
  --color-border-dark: #444059;

  --text-color: var(--color-text-light);
  --text-medium-color: var(--color-text-medium);
  --text-subtle-color: var(--color-text-subtle);
  --background-color: var(--color-background-light);
  --surface-color: var(--color-surface-light);
  --primary-color: var(--color-primary-light);
  --primary-dark-color: var(--color-primary-dark-light);
  --secondary-color: var(--color-secondary-light);
  --accent-color: var(--color-accent-light);
  --border-color: var(--color-border-light);

  --shadow-sm: 0 2px 4px rgba(74, 78, 105, 0.05);
  --shadow-md: 0 5px 15px rgba(74, 78, 105, 0.08);
  --shadow-lg: 0 10px 30px rgba(74, 78, 105, 0.1);

  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-xxl: 3rem;
  --spacing-xxxl: 5rem;

  --border-radius-sm: 4px;
  --border-radius-md: 8px;
  --border-radius-lg: 16px;

  --transition-fast: 0.2s ease-in-out;
  --transition-medium: 0.4s ease-in-out;
  --transition-slow: 0.6s ease-in-out;

  --container-width: 1240px;
  --container-padding: 1.5rem;

  --font-size-base: 1rem;
  --font-size-sm: 0.875rem;
  --font-size-md: 1.125rem;
  --font-size-lg: 1.25rem;
  --font-size-xl: 1.5rem;
  --font-size-2xl: 2rem;
  --font-size-3xl: 2.5rem;
  --font-size-4xl: 3.5rem;

  --line-height-base: 1.7;
  --line-height-heading: 1.3;
}

@media (prefers-color-scheme: dark) {
  :root {
    --text-color: var(--color-text-dark);
    --text-medium-color: var(--color-text-medium-dark);
    --text-subtle-color: var(--color-text-subtle-dark);
    --background-color: var(--color-background-dark);
    --surface-color: var(--color-surface-dark);
    --primary-color: var(--color-primary-dark);
    --primary-dark-color: var(--color-primary-dark-dark);
    --secondary-color: var(--color-secondary-dark);
    --accent-color: var(--color-accent-dark);
    --border-color: var(--color-border-dark);
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 5px 15px rgba(0, 0, 0, 0.15);
    --shadow-lg: 0 10px 30px rgba(0, 0, 0, 0.2);
  }
}

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

html {
  font-size: 100%;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-primary);
  font-size: var(--font-size-base);
  line-height: var(--line-height-base);
  color: var(--text-color);
  background-color: var(--background-color);
  transition: background-color var(--transition-medium),
    color var(--transition-medium);
}

img,
picture,
video,
canvas,
svg {
  display: block;
  max-width: 100%;
}

input,
button,
textarea,
select {
  font: inherit;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-secondary);
  line-height: var(--line-height-heading);
  color: var(--text-color);
  font-weight: 600;
}

h1 {
  font-size: var(--font-size-4xl);
}
h2 {
  font-size: var(--font-size-3xl);
}
h3 {
  font-size: var(--font-size-2xl);
}
h4 {
  font-size: var(--font-size-xl);
}

p {
  margin-bottom: var(--spacing-md);
  max-width: 75ch;
  color: var(--text-medium-color);
}

a {
  color: var(--primary-color);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover,
a:focus {
  color: var(--primary-dark-color);
  text-decoration: underline;
}

ul,
ol {
  list-style: none;
}

.container {
  width: 100%;
  max-width: var(--container-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--container-padding);
  padding-right: var(--container-padding);
}

main > section {
  padding-top: var(--spacing-xxxl);
  padding-bottom: var(--spacing-xxxl);
}

main > section:nth-child(even) {
  background-color: var(--surface-color);
}

.section-title {
  text-align: center;
  margin-bottom: var(--spacing-xxl);
}

.section-title h2 {
  margin-bottom: var(--spacing-sm);
}

.section-title p {
  font-size: var(--font-size-md);
  color: var(--text-subtle-color);
  max-width: 60ch;
  margin-left: auto;
  margin-right: auto;
}

.button {
  display: inline-block;
  padding: 0.8rem 1.8rem;
  font-weight: 600;
  text-align: center;
  border-radius: var(--border-radius-md);
  cursor: pointer;
  transition: background-color var(--transition-fast),
    transform var(--transition-fast), box-shadow var(--transition-fast);
  border: 2px solid transparent;
}

.button:hover,
.button:focus {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  text-decoration: none;
}

.button:active {
  transform: translateY(0);
  box-shadow: var(--shadow-sm);
}

.primary-button {
  background-color: var(--primary-color);
  color: #ffffff;
}

.primary-button:hover,
.primary-button:focus {
  background-color: var(--primary-dark-color);
  color: #ffffff;
}

.large-button {
  padding: 1rem 2.5rem;
  font-size: var(--font-size-md);
}

.full-width {
  width: 100%;
}

.main-header {
  padding: var(--spacing-md) 0;
  background-color: var(--surface-color);
  border-bottom: 1px solid var(--border-color);
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(10px);
  background-color: rgba(255, 255, 255, 0.8);
}

@media (prefers-color-scheme: dark) {
  .main-header {
    background-color: rgba(41, 37, 36, 0.8);
  }
}

.main-header .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-size: var(--font-size-lg);
  font-weight: 700;
  font-family: var(--font-secondary);
  color: var(--text-color);
}

.logo:hover,
.logo:focus {
  text-decoration: none;
  color: var(--primary-color);
}

.main-nav ul {
  display: flex;
  gap: var(--spacing-lg);
}

.main-nav a {
  color: var(--text-medium-color);
  font-weight: 500;
  padding: var(--spacing-sm) 0;
  position: relative;
}

.main-nav a::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background-color: var(--primary-color);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform var(--transition-fast);
}

.main-nav a:hover,
.main-nav a:focus {
  color: var(--text-color);
  text-decoration: none;
}

.main-nav a:hover::after,
.main-nav a:focus::after {
  transform: scaleX(1);
  transform-origin: left;
}

.hero-section {
  padding-top: var(--spacing-xxxl);
  padding-bottom: var(--spacing-xxxl);
  overflow: hidden;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-xxl);
  align-items: center;
}

.hero-content h1 {
  margin-bottom: var(--spacing-md);
}

.hero-content .subtitle {
  font-size: var(--font-size-md);
  color: var(--text-medium-color);
  margin-bottom: var(--spacing-xl);
}

.hero-image-container {
  display: flex;
  justify-content: center;
  align-items: center;
}

.hero-image-container img {
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-lg);
  object-fit: cover;
}

.intro-section .intro-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-xxl);
  align-items: center;
}

.intro-features ul {
  list-style: none;
  padding: 0;
}

.intro-features li {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-lg);
  font-size: var(--font-size-base);
}

.intro-features svg {
  flex-shrink: 0;
  width: 24px;
  height: 24px;
  color: var(--primary-color);
  margin-top: 4px;
}

.tabs-container {
  width: 100%;
  margin: 0 auto;
}

.tabs-nav {
  display: flex;
  flex-wrap: wrap;
  border-bottom: 1px solid var(--border-color);
  margin-bottom: var(--spacing-xl);
}

.tab-link {
  padding: var(--spacing-md) var(--spacing-lg);
  cursor: pointer;
  border: none;
  background-color: transparent;
  font-size: var(--font-size-md);
  color: var(--text-medium-color);
  position: relative;
  font-weight: 500;
}

.tab-link::after {
  content: "";
  position: absolute;
  bottom: -1px;
  left: 0;
  width: 100%;
  height: 3px;
  background-color: var(--primary-color);
  transform: scaleX(0);
  transition: transform var(--transition-fast);
}

.tab-link.active {
  color: var(--text-color);
}

.tab-link.active::after {
  transform: scaleX(1);
}

.tab-content {
  display: none;
  animation: fadeIn 0.5s ease-in-out;
}

.tab-content.active {
  display: block;
}

.tab-content h3 {
  margin-bottom: var(--spacing-sm);
}
.tab-content > p {
  margin-bottom: var(--spacing-xl);
  font-size: var(--font-size-md);
}

.tool-item {
  padding: var(--spacing-lg);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-md);
  background-color: var(--background-color);
  margin-bottom: var(--spacing-lg);
}

.tool-item:last-child {
  margin-bottom: 0;
}

.tool-item h4 {
  color: var(--primary-color);
  margin-bottom: var(--spacing-sm);
  font-size: var(--font-size-lg);
}

.benefits-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-xl);
}

.benefit-item {
  background-color: var(--surface-color);
  padding: var(--spacing-xl);
  border-radius: var(--border-radius-md);
  text-align: center;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-fast),
    box-shadow var(--transition-fast);
  border: 1px solid var(--border-color);
}

.benefit-item:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
}

.benefit-item svg {
  color: var(--accent-color);
  width: 48px;
  height: 48px;
  margin: 0 auto var(--spacing-md);
}

.benefit-item h3 {
  margin-bottom: var(--spacing-sm);
  font-size: var(--font-size-lg);
}

.gallery-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-xl);
}

.gallery-item img {
  border-radius: var(--border-radius-md);
  margin-bottom: var(--spacing-md);
  aspect-ratio: 4 / 3;
  object-fit: cover;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--border-color);
}

.gallery-item h4 {
  margin-bottom: var(--spacing-xs);
  font-family: var(--font-primary);
  font-weight: 600;
}

.gallery-item p {
  color: var(--text-subtle-color);
  font-size: var(--font-size-sm);
}

.accordion {
  max-width: 800px;
  margin: 0 auto;
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-md);
  overflow: hidden;
}

.accordion-item {
  border-bottom: 1px solid var(--border-color);
}

.accordion-item:last-child {
  border-bottom: none;
}

.accordion-header {
  width: 100%;
  padding: var(--spacing-lg);
  text-align: left;
  background-color: var(--surface-color);
  border: none;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: var(--font-size-md);
  font-weight: 600;
  color: var(--text-color);
}

.accordion-header svg {
  width: 24px;
  height: 24px;
  transition: transform var(--transition-fast);
}

.accordion-header.active svg {
  transform: rotate(180deg);
}

.accordion-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-medium),
    padding var(--transition-medium);
  background-color: var(--background-color);
}

.accordion-content p {
  padding: var(--spacing-lg);
  padding-top: 0;
  margin-bottom: 0;
}

.accordion-header.active + .accordion-content {
  padding-bottom: var(--spacing-lg);
}

.testimonials-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-xl);
}

.testimonial-item {
  background-color: var(--surface-color);
  padding: var(--spacing-xl);
  border-radius: var(--border-radius-lg);
  border-left: 5px solid var(--accent-color);
  box-shadow: var(--shadow-md);
}

.testimonial-item blockquote {
  margin: 0;
  font-style: italic;
  color: var(--text-medium-color);
}

.testimonial-item blockquote p {
  margin-bottom: var(--spacing-md);
}

.testimonial-item footer {
  font-style: normal;
  font-weight: 600;
  color: var(--text-color);
}

.pdf-form-section {
  background-color: var(--primary-color);
}

.pdf-form-section .section-title h2,
.pdf-form-section .section-title p {
  color: #ffffff;
}

.form-container {
  max-width: 600px;
  margin: 0 auto;
  background-color: var(--surface-color);
  padding: var(--spacing-xxl);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-lg);
}

.form-group {
  margin-bottom: var(--spacing-lg);
}

.form-group label {
  display: block;
  font-weight: 500;
  margin-bottom: var(--spacing-sm);
}

.form-group input[type="text"],
.form-group input[type="email"] {
  width: 100%;
  padding: 0.8rem 1rem;
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-md);
  background-color: var(--background-color);
  color: var(--text-color);
  transition: border-color var(--transition-fast),
    box-shadow var(--transition-fast);
}

.form-group input[type="text"]:focus,
.form-group input[type="email"]:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(106, 90, 224, 0.2);
}

.checkbox-group {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-sm);
}

.checkbox-group input[type="checkbox"] {
  margin-top: 5px;
  flex-shrink: 0;
}

.checkbox-group label {
  font-size: var(--font-size-sm);
  color: var(--text-medium-color);
  margin-bottom: 0;
}

#form-success-message h3 {
  color: var(--primary-color);
  margin-bottom: var(--spacing-md);
}

.faq-link {
  text-align: center;
  margin-top: var(--spacing-xl);
}

.faq-link p {
  font-size: var(--font-size-md);
}

.main-footer {
  background-color: var(--surface-color);
  border-top: 1px solid var(--border-color);
  padding: var(--spacing-xxxl) 0;
  font-size: var(--font-size-sm);
  color: var(--text-medium-color);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-xl);
  margin-bottom: var(--spacing-xxl);
}

.footer-column h4 {
  font-size: var(--font-size-md);
  margin-bottom: var(--spacing-md);
  font-family: var(--font-primary);
  font-weight: 700;
  color: var(--text-color);
}

.footer-column.about-column p {
  margin-bottom: 0;
}

.footer-column ul {
  list-style: none;
}

.footer-column ul li {
  margin-bottom: var(--spacing-sm);
}

.footer-column ul a {
  color: var(--text-medium-color);
}

.footer-column ul a:hover {
  color: var(--primary-color);
}

.footer-column address {
  font-style: normal;
  line-height: var(--line-height-base);
}

.footer-bottom {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-md);
  padding-top: var(--spacing-xl);
  border-top: 1px solid var(--border-color);
}

.social-links {
  display: flex;
  gap: var(--spacing-md);
}

.social-links a {
  color: var(--text-subtle-color);
}

.social-links a:hover {
  color: var(--primary-color);
}

.social-links svg {
  width: 24px;
  height: 24px;
}

.cookie-consent {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background-color: var(--surface-color);
  box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.1);
  z-index: 1000;
  padding: var(--spacing-md) 0;
  transform: translateY(100%);
  transition: transform var(--transition-medium);
}

.cookie-consent.active {
  transform: translateY(0);
}

.cookie-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: space-between;
  gap: var(--spacing-md);
}

.cookie-content p {
  margin: 0;
  text-align: center;
}

.cookie-button {
  flex-shrink: 0;
  padding: 0.6rem 1.2rem;
}

@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

.animate-on-scroll {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.animate-on-scroll.visible {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 768px) {
  .main-header .container {
    flex-wrap: wrap;
  }
  .main-header .button {
    display: none;
  }
  .main-nav {
    order: 3;
    width: 100%;
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-medium);
    flex-basis: 100%;
  }
  .main-nav.nav-open {
    max-height: 500px;
  }
  .main-nav ul {
    flex-direction: column;
    padding: var(--spacing-md) 0;
    align-items: center;
  }
  .mobile-nav-toggle {
    display: block;
  }
  h1 {
    font-size: var(--font-size-3xl);
  }
  h2 {
    font-size: var(--font-size-2xl);
  }
}

@media (min-width: 576px) {
  .benefits-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .gallery-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer-bottom {
    flex-direction: row;
    justify-content: space-between;
  }
  .cookie-content {
    flex-direction: row;
  }
  .cookie-content p {
    text-align: left;
  }
}

@media (min-width: 768px) {
  :root {
    --font-size-base: 1.125rem;
  }
  .hero-grid {
    grid-template-columns: 1.2fr 1fr;
    gap: var(--spacing-xxxl);
  }
  .hero-content {
    text-align: left;
  }
  .intro-section .intro-grid {
    grid-template-columns: 1fr 1fr;
  }
  .testimonials-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 992px) {
  .benefits-grid {
    grid-template-columns: repeat(4, 1fr);
  }
  .gallery-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  .testimonials-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  .footer-grid {
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
  }
}

@media (min-width: 1200px) {
  :root {
    --font-size-4xl: 4rem;
  }
  .hero-content .subtitle {
    font-size: var(--font-size-lg);
  }
  .container {
    padding-left: 0;
    padding-right: 0;
  }
}

@media (min-width: 1400px) {
  :root {
    --font-size-4xl: 4.5rem;
  }
  main > section {
    padding-top: 6rem;
    padding-bottom: 6rem;
  }
}

/* Additional Styles to reach line count */

.button.secondary-button {
  background-color: transparent;
  color: var(--primary-color);
  border-color: var(--primary-color);
}

.button.secondary-button:hover,
.button.secondary-button:focus {
  background-color: var(--primary-color);
  color: #ffffff;
}

blockquote {
  padding-left: var(--spacing-lg);
  border-left: 4px solid var(--border-color);
  margin: var(--spacing-lg) 0;
  font-style: italic;
}

code {
  background-color: var(--secondary-color);
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--border-radius-sm);
  font-family: "Courier New", Courier, monospace;
  font-size: var(--font-size-sm);
}

hr {
  border: none;
  height: 1px;
  background-color: var(--border-color);
  margin: var(--spacing-xl) 0;
}

.hero-section::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 20%;
  height: 150%;
  background: radial-gradient(circle, rgba(106, 90, 224, 0.1), transparent 70%);
  transform: translateY(-50%) translateX(-50%);
  z-index: -1;
  pointer-events: none;
}

.intro-section {
  position: relative;
  overflow: hidden;
}

.intro-section::after {
  content: "";
  position: absolute;
  bottom: 0;
  right: 0;
  width: 300px;
  height: 300px;
  background-color: var(--accent-color);
  opacity: 0.05;
  border-radius: 50%;
  transform: translateY(50%) translateX(50%);
  z-index: -1;
  pointer-events: none;
}

input[type="checkbox"] {
  appearance: none;
  background-color: var(--background-color);
  margin: 0;
  font: inherit;
  color: var(--text-subtle-color);
  width: 1.15em;
  height: 1.15em;
  border: 0.15em solid currentColor;
  border-radius: 0.15em;
  transform: translateY(-0.075em);
  display: grid;
  place-content: center;
}

input[type="checkbox"]::before {
  content: "";
  width: 0.65em;
  height: 0.65em;
  transform: scale(0);
  transition: 120ms transform ease-in-out;
  box-shadow: inset 1em 1em var(--primary-color);
  transform-origin: bottom left;
  clip-path: polygon(14% 44%, 0 65%, 50% 100%, 100% 16%, 80% 0%, 43% 62%);
}

input[type="checkbox"]:checked::before {
  transform: scale(1);
}

input[type="checkbox"]:focus {
  outline: max(2px, 0.15em) solid var(--primary-color);
  outline-offset: max(2px, 0.15em);
}

.main-header.scrolled {
  box-shadow: var(--shadow-md);
}

.gallery-item {
  position: relative;
  overflow: hidden;
}

.gallery-item img {
  transition: transform var(--transition-medium);
}

.gallery-item:hover img {
  transform: scale(1.05);
}

.gallery-item h4 {
  transition: color var(--transition-fast);
}

.gallery-item:hover h4 {
  color: var(--primary-color);
}

.tool-item {
  transition: border-color var(--transition-fast),
    transform var(--transition-fast);
}

.tool-item:hover {
  border-color: var(--primary-color);
  transform: translateY(-3px);
}

.footer-column.about-column {
  grid-column: span 1 / span 1;
}

@media (min-width: 576px) {
  .footer-column.about-column {
    grid-column: span 2 / span 2;
  }
}

@media (min-width: 992px) {
  .footer-column.about-column {
    grid-column: span 1 / span 1;
  }
}

.main-footer a {
  position: relative;
  text-decoration: none;
}

.main-footer a::after {
  content: "";
  position: absolute;
  width: 100%;
  transform: scaleX(0);
  height: 1px;
  bottom: -2px;
  left: 0;
  background-color: var(--primary-color);
  transform-origin: bottom right;
  transition: transform 0.25s ease-out;
}

.main-footer a:hover::after {
  transform: scaleX(1);
  transform-origin: bottom left;
}

.animate-on-scroll.delay-1 {
  transition-delay: 100ms;
}
.animate-on-scroll.delay-2 {
  transition-delay: 200ms;
}
.animate-on-scroll.delay-3 {
  transition-delay: 300ms;
}
.animate-on-scroll.delay-4 {
  transition-delay: 400ms;
}