:root {
  --font-primary: "Lato", sans-serif;
  --font-secondary: "Playfair Display", serif;
  --color-background: #fdfdfb;
  --color-text: #1a1a1a;
  --color-primary: #0057ff;
  --color-primary-dark: #0045cc;
  --color-secondary: #ffd600;
  --color-accent: #e6007a;
  --color-border: #1a1a1a;
  --color-white: #ffffff;
  --color-light-gray: #f3f4f6;
  --border-width: 2px;
  --border-radius-sharp: 4px;
  --border-radius-soft: 8px;
  --shadow-hard: 4px 4px 0px var(--color-border);
  --shadow-hard-hover: 6px 6px 0px var(--color-border);
  --spacing-xs: 4px;
  --spacing-sm: 8px;
  --spacing-md: 16px;
  --spacing-lg: 32px;
  --spacing-xl: 64px;
  --spacing-xxl: 128px;
  --transition-fast: 0.2s ease-out;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-primary);
  background-color: var(--color-background);
  color: var(--color-text);
  line-height: 1.6;
}

.container {
  width: 100%;
  max-width: 1240px;
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--spacing-lg);
  padding-right: var(--spacing-lg);
}

img,
svg {
  max-width: 100%;
  height: auto;
  display: block;
}

ul {
  list-style: none;
}

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

a:hover {
  color: var(--color-primary-dark);
}

h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-secondary);
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-text);
}

h1 {
  font-size: 3.5rem;
}
h2 {
  font-size: 2.75rem;
}
h3 {
  font-size: 1.75rem;
}
h4 {
  font-size: 1.25rem;
}
p {
  margin-bottom: var(--spacing-md);
  max-width: 75ch;
}

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

.section-header__subtitle {
  display: block;
  font-family: var(--font-primary);
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: var(--spacing-sm);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.section-header__title {
  margin-bottom: var(--spacing-md);
}

.section-header__text {
  font-size: 1.125rem;
  color: #555;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

.button {
  display: inline-block;
  padding: 14px 28px;
  font-family: var(--font-primary);
  font-weight: 700;
  font-size: 1rem;
  text-align: center;
  border-radius: var(--border-radius-sharp);
  cursor: pointer;
  transition: transform var(--transition-fast),
    box-shadow var(--transition-fast), background-color var(--transition-fast),
    color var(--transition-fast);
  border: var(--border-width) solid var(--color-border);
}

.button--primary {
  background-color: var(--color-primary);
  color: var(--color-white);
  box-shadow: var(--shadow-hard);
}

.button--primary:hover {
  transform: translate(-2px, -2px);
  box-shadow: var(--shadow-hard-hover);
  color: var(--color-white);
}

.button--secondary {
  background-color: var(--color-background);
  color: var(--color-text);
  box-shadow: var(--shadow-hard);
}

.button--secondary:hover {
  transform: translate(-2px, -2px);
  box-shadow: var(--shadow-hard-hover);
  color: var(--color-text);
}

.button--white {
  background-color: var(--color-white);
  color: var(--color-text);
  box-shadow: var(--shadow-hard);
}

.button--white:hover {
  transform: translate(-2px, -2px);
  box-shadow: var(--shadow-hard-hover);
  color: var(--color-text);
}

.button--large {
  padding: 18px 36px;
  font-size: 1.125rem;
}

.site-header {
  position: sticky;
  top: 0;
  width: 100%;
  z-index: 1000;
  background-color: var(--color-background);
  padding: var(--spacing-md) 0;
  border-bottom: var(--border-width) solid var(--color-border);
  transition: box-shadow var(--transition-fast);
}

.site-header.scrolled {
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.05);
}

.site-header__container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.site-header__logo {
  display: flex;
  align-items: center;
  font-family: var(--font-secondary);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-text);
}

.site-header__logo i {
  color: var(--color-primary);
  margin-right: var(--spacing-sm);
  font-size: 1.8rem;
}

.site-header__logo:hover {
  color: var(--color-text);
}

.site-header__nav-list {
  display: flex;
  gap: var(--spacing-lg);
}

.site-header__nav-link {
  font-weight: 700;
  color: var(--color-text);
  padding: var(--spacing-sm) 0;
  position: relative;
}

.site-header__nav-link::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: var(--border-width);
  background-color: var(--color-primary);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition-fast);
}

.site-header__nav-link:hover::after {
  transform: scaleX(1);
}

.site-header__actions {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

.site-header__login-button {
  font-weight: 700;
}

.site-header__mobile-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 1.75rem;
  color: var(--color-text);
  cursor: pointer;
}

.hero {
  position: relative;
  padding: var(--spacing-xxl) 0;
  color: var(--color-white);
  min-height: 90vh;
  display: flex;
  align-items: center;
}

.hero__background {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -2;
  background-color: var(--color-text);
}

.hero__background::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(26, 26, 26, 0.7);
  z-index: -1;
}

.hero__background img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.4;
}

.hero__content {
  max-width: 850px;
}

.hero__title {
  color: var(--color-white);
  margin-bottom: var(--spacing-lg);
}

.hero__subtitle {
  font-size: 1.25rem;
  line-height: 1.7;
  margin-bottom: var(--spacing-xl);
  max-width: 65ch;
  color: rgba(255, 255, 255, 0.9);
}

.hero__cta-group {
  display: flex;
  gap: var(--spacing-md);
  flex-wrap: wrap;
  margin-bottom: var(--spacing-xl);
}

.hero__trust-signal {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  font-size: 0.9rem;
}

.hero__avatars {
  display: flex;
}

.hero__avatars i {
  font-size: 1.75rem;
  margin-left: -10px;
  border: 2px solid var(--color-background);
  border-radius: 50%;
}
.hero__avatars i:first-child {
  margin-left: 0;
}

.product-description {
  padding: var(--spacing-xxl) 0;
}

.product-description__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-xl);
}

.product-description__card {
  border: var(--border-width) solid var(--color-border);
  border-radius: var(--border-radius-sharp);
  padding: var(--spacing-xl) var(--spacing-lg);
  background-color: var(--color-white);
  transition: transform var(--transition-fast),
    box-shadow var(--transition-fast);
}

.product-description__card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-hard);
}

.product-description__card-icon {
  font-size: 2.5rem;
  color: var(--color-primary);
  margin-bottom: var(--spacing-lg);
}

.product-description__card-title {
  margin-bottom: var(--spacing-md);
}

.advantages {
  background-color: var(--color-primary);
  padding: var(--spacing-xxl) 0;
}

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

.section-header__subtitle--light,
.section-header__title--light,
.section-header__text--light {
  color: var(--color-white);
  text-align: left;
  margin-left: 0;
}

.advantages__list {
  margin-top: var(--spacing-xl);
  margin-bottom: var(--spacing-xl);
}

.advantages__list-item {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-md);
  font-size: 1.125rem;
  color: var(--color-white);
  margin-bottom: var(--spacing-md);
}

.advantages__list-item i {
  color: var(--color-secondary);
  font-size: 1.5rem;
  margin-top: 4px;
}

.advantages__image-wrapper {
  border: var(--border-width) solid var(--color-border);
  border-radius: var(--border-radius-sharp);
  background-color: var(--color-secondary);
  box-shadow: 10px 10px 0px var(--color-border);
}

.advantages__image-wrapper img {
  border-radius: var(--border-radius-sharp);
}

.case-studies {
  padding: var(--spacing-xxl) 0;
  background-color: var(--color-light-gray);
}

.case-studies__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(450px, 1fr));
  gap: var(--spacing-xl);
}

.case-studies__card {
  background-color: var(--color-white);
  border: var(--border-width) solid var(--color-border);
  border-radius: var(--border-radius-sharp);
}

.case-studies__card-header {
  display: flex;
  align-items: center;
  gap: var(--spacing-lg);
  padding: var(--spacing-lg);
  border-bottom: var(--border-width) solid var(--color-border);
}

.case-studies__card-icon {
  font-size: 2.5rem;
  color: var(--color-accent);
}

.case-studies__card-title {
  font-size: 1.25rem;
  margin: 0;
}

.case-studies__card-role {
  font-size: 0.9rem;
  color: #555;
  margin: 0;
}

.case-studies__card-body {
  padding: var(--spacing-lg);
}

.case-studies__card-challenge,
.case-studies__card-solution {
  margin-bottom: var(--spacing-lg);
}

.case-studies__card-challenge strong,
.case-studies__card-solution strong {
  font-family: var(--font-primary);
  font-weight: 700;
  display: block;
  margin-bottom: var(--spacing-sm);
}

.case-studies__card-result {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  background-color: var(--color-light-gray);
  padding: var(--spacing-md);
  border-radius: var(--border-radius-soft);
}

.case-studies__card-result i {
  color: var(--color-secondary);
  font-size: 1.5rem;
}

.case-studies__card-result p {
  margin: 0;
  font-weight: 700;
}

.mission-vision {
  padding: var(--spacing-xxl) 0;
}

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

.mission-vision__card {
  padding: var(--spacing-xl);
  border-radius: var(--border-radius-sharp);
  border: var(--border-width) solid var(--color-border);
}

.mission-vision__card--mission {
  background-color: var(--color-secondary);
}

.mission-vision__card--vision {
  background-color: var(--color-light-gray);
}

.mission-vision__icon {
  font-size: 3rem;
  margin-bottom: var(--spacing-lg);
  color: var(--color-text);
}

.mission-vision__title {
  margin-bottom: var(--spacing-md);
}

.team {
  padding: var(--spacing-xxl) 0;
}

.team__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-xl);
}

.team__member {
  text-align: center;
}

.team__member-icon {
  width: 120px;
  height: 120px;
  margin: 0 auto var(--spacing-lg);
  border: var(--border-width) solid var(--color-border);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3rem;
  background-color: var(--color-light-gray);
  transition: background-color var(--transition-fast),
    color var(--transition-fast);
}

.team__member:hover .team__member-icon {
  background-color: var(--color-primary);
  color: var(--color-white);
}

.team__member-name {
  margin-bottom: var(--spacing-xs);
}

.team__member-role {
  color: var(--color-primary);
  font-weight: 700;
  margin-bottom: var(--spacing-sm);
}

.team__member-bio {
  font-size: 0.9rem;
  color: #555;
}

.reviews {
  padding: var(--spacing-xxl) 0;
  background-color: var(--color-text);
}

.reviews .section-header__subtitle,
.reviews .section-header__title {
  color: var(--color-white);
}

.reviews__slider {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-xl);
}

.reviews__card {
  background-color: var(--color-white);
  border: var(--border-width) solid var(--color-border);
  border-radius: var(--border-radius-sharp);
  padding: var(--spacing-lg);
  display: flex;
  flex-direction: column;
}

.reviews__card-rating {
  color: var(--color-secondary);
  margin-bottom: var(--spacing-md);
  font-size: 1.25rem;
}

.reviews__card-quote {
  font-size: 1.125rem;
  font-style: italic;
  margin-bottom: var(--spacing-lg);
  flex-grow: 1;
}

.reviews__card-author {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  margin-top: auto;
}

.reviews__card-author-icon {
  font-size: 2.5rem;
}

.reviews__card-author-name {
  margin: 0;
}

.reviews__card-author-status {
  margin: 0;
  font-size: 0.9rem;
  color: #555;
}

.faq {
  padding: var(--spacing-xxl) 0;
}

.faq__accordion {
  max-width: 800px;
  margin: 0 auto;
  border: var(--border-width) solid var(--color-border);
  border-radius: var(--border-radius-sharp);
}

.faq__item {
  border-bottom: var(--border-width) solid var(--color-border);
}

.faq__item:last-child {
  border-bottom: none;
}

.faq__question {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-lg);
  background: none;
  border: none;
  cursor: pointer;
  font-family: var(--font-primary);
  font-size: 1.25rem;
  font-weight: 700;
  text-align: left;
}

.faq__icon {
  transition: transform var(--transition-fast);
}

.faq__item.active .faq__icon {
  transform: rotate(180deg);
}

.faq__answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease-in-out, padding 0.3s ease-in-out;
}

.faq__answer p {
  padding: 0 var(--spacing-lg) var(--spacing-lg);
  margin: 0;
}

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

.cta {
  background-color: var(--color-secondary);
  padding: var(--spacing-xxl) 0;
  text-align: center;
}

.cta__title {
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
  margin-bottom: var(--spacing-md);
}

.cta__text {
  font-size: 1.25rem;
  max-width: 700px;
  margin: 0 auto var(--spacing-xl);
}

.cta__guarantee {
  margin-top: var(--spacing-md);
  font-size: 0.9rem;
  color: #333;
}

.site-footer-main {
  background-color: var(--color-text);
  color: var(--color-light-gray);
  padding-top: var(--spacing-xxl);
}

.site-footer-main__grid {
  display: grid;
  grid-template-columns: 2fr repeat(4, 1fr);
  gap: var(--spacing-xl);
  padding-bottom: var(--spacing-xl);
}

.site-footer-main__logo {
  display: flex;
  align-items: center;
  font-family: var(--font-secondary);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: var(--spacing-md);
}

.site-footer-main__logo i {
  color: var(--color-primary);
  margin-right: var(--spacing-sm);
  font-size: 1.8rem;
}

.site-footer-main__description {
  font-size: 0.9rem;
  max-width: 300px;
  color: #ccc;
  margin-bottom: var(--spacing-lg);
}

.site-footer-main__socials {
  display: flex;
  gap: var(--spacing-lg);
}

.site-footer-main__socials a {
  color: var(--color-light-gray);
  font-size: 1.25rem;
}

.site-footer-main__socials a:hover {
  color: var(--color-primary);
}

.site-footer-main__links-title {
  font-family: var(--font-primary);
  font-weight: 700;
  font-size: 1.125rem;
  color: var(--color-white);
  margin-bottom: var(--spacing-lg);
  text-transform: uppercase;
}

.site-footer-main__links-list li {
  margin-bottom: var(--spacing-md);
}

.site-footer-main__links-list a {
  color: #ccc;
}

.site-footer-main__links-list a:hover {
  color: var(--color-white);
  text-decoration: underline;
}

.site-footer-main__bottom-bar {
  border-top: 1px solid #444;
  padding: var(--spacing-lg) 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.9rem;
  color: #aaa;
}

.site-footer-main__back-to-top {
  color: #aaa;
  font-weight: 700;
}

.cookie-notice {
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  background-color: var(--color-text);
  color: var(--color-white);
  padding: var(--spacing-lg) 0;
  z-index: 2000;
  transform: translateY(100%);
  transition: transform 0.4s ease-in-out;
}

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

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

.cookie-notice__text p {
  margin: 0;
  max-width: 80ch;
}

.cookie-notice__text a {
  color: var(--color-secondary);
  text-decoration: underline;
}

.cookie-notice__actions {
  display: flex;
  gap: var(--spacing-md);
  flex-shrink: 0;
}

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

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.fade-in-on-scroll {
  opacity: 0;
  transition: opacity 0.6s ease-out, transform 0.6s ease-out;
  transform: translateY(20px);
}
.fade-in-on-scroll.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 1200px) {
  h1 {
    font-size: 3rem;
  }
  h2 {
    font-size: 2.25rem;
  }
  .advantages__container {
    gap: var(--spacing-xl);
  }
}

@media (max-width: 992px) {
  .site-header__nav,
  .site-header__actions {
    display: none;
  }
  .site-header__mobile-toggle {
    display: block;
  }
  .product-description__grid,
  .reviews__slider {
    grid-template-columns: 1fr;
  }
  .advantages__container {
    grid-template-columns: 1fr;
  }
  .advantages__image-wrapper {
    order: -1;
  }
  .mission-vision__container {
    grid-template-columns: 1fr;
  }
  .site-footer-main__grid {
    grid-template-columns: 1fr 1fr;
  }
  .site-footer-main__about {
    grid-column: 1 / -1;
    text-align: center;
    align-items: center;
    display: flex;
    flex-direction: column;
  }
  .site-footer-main__socials {
    justify-content: center;
  }
}

@media (max-width: 768px) {
  h1 {
    font-size: 2.5rem;
  }
  h2 {
    font-size: 2rem;
  }
  :root {
    --spacing-xxl: 96px;
    --spacing-xl: 48px;
  }
  .container {
    padding-left: var(--spacing-md);
    padding-right: var(--spacing-md);
  }
  .hero {
    padding: var(--spacing-xl) 0;
    text-align: center;
  }
  .hero__content {
    max-width: 100%;
  }
  .hero__cta-group {
    justify-content: center;
  }
  .hero__trust-signal {
    justify-content: center;
  }
  .cookie-notice__container {
    flex-direction: column;
    text-align: center;
    gap: var(--spacing-lg);
  }
}

@media (max-width: 576px) {
  html {
    font-size: 14px;
  }
  .case-studies__grid {
    grid-template-columns: 1fr;
  }
  .hero__cta-group {
    flex-direction: column;
  }
  .button--large {
    width: 100%;
  }
  .site-footer-main__grid {
    grid-template-columns: 1fr;
    text-align: center;
  }
  .site-footer-main__links-list {
    padding-left: 0;
  }
  .site-footer-main__bottom-bar {
    flex-direction: column;
    gap: var(--spacing-md);
    text-align: center;
  }
}