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

:root {
  --color-primary: #1a237e;
  --color-secondary: #7c4dff;
  --color-accent: #b388ff;
  --color-dark: #0d1442;
  --color-light: #f5f5ff;
  --color-white: #ffffff;
  --color-text: #333344;
  --color-text-light: #666680;
  --color-border: #e0e0e8;
  --font-main: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  --shadow-sm: 0 2px 8px rgba(26, 35, 126, 0.1);
  --shadow-md: 0 4px 16px rgba(26, 35, 126, 0.15);
  --shadow-lg: 0 8px 32px rgba(26, 35, 126, 0.2);
  --transition: 0.3s ease;
  --container-width: 1200px;
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
  --spacing-xxl: 4rem;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-main);
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-text);
  background-color: var(--color-white);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

main {
  flex: 1;
}

.container {
  width: 100%;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 var(--spacing-sm);
}

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

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

h1, h2, h3, h4, h5, h6 {
  color: var(--color-dark);
  line-height: 1.3;
  margin-bottom: var(--spacing-sm);
}

h1 {
  font-size: 2rem;
}

h2 {
  font-size: 1.75rem;
}

h3 {
  font-size: 1.5rem;
}

p {
  margin-bottom: var(--spacing-sm);
}

ul, ol {
  margin-bottom: var(--spacing-sm);
  padding-left: var(--spacing-md);
}

li {
  margin-bottom: var(--spacing-xs);
}

/* Header */
.header {
  background-color: var(--color-white);
  box-shadow: var(--shadow-sm);
  position: sticky;
  top: 0;
  z-index: 1000;
}

.header__container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-sm);
}

.logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-primary);
  text-decoration: none;
}

.logo__icon {
  width: 40px;
  height: 40px;
}

.logo:hover,
.logo:focus {
  color: var(--color-secondary);
}

/* Navigation */
.nav {
  display: none;
}

.nav__list {
  display: flex;
  gap: var(--spacing-md);
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav__link {
  color: var(--color-text);
  font-weight: 500;
  padding: var(--spacing-xs) 0;
  position: relative;
}

.nav__link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--color-secondary);
  transition: width var(--transition);
}

.nav__link:hover::after,
.nav__link:focus::after,
.nav__link--active::after {
  width: 100%;
}

.nav__link--active {
  color: var(--color-primary);
}

/* Mobile Menu Button */
.mobile-menu-btn {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 32px;
  height: 32px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.mobile-menu-btn__line {
  width: 100%;
  height: 3px;
  background-color: var(--color-primary);
  border-radius: 2px;
  transition: var(--transition);
}

.mobile-menu-btn[aria-expanded="true"] .mobile-menu-btn__line:nth-child(1) {
  transform: rotate(45deg) translate(6px, 6px);
}

.mobile-menu-btn[aria-expanded="true"] .mobile-menu-btn__line:nth-child(2) {
  opacity: 0;
}

.mobile-menu-btn[aria-expanded="true"] .mobile-menu-btn__line:nth-child(3) {
  transform: rotate(-45deg) translate(6px, -6px);
}

/* Mobile Navigation */
.mobile-nav {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background-color: var(--color-white);
  box-shadow: var(--shadow-md);
  padding: var(--spacing-sm);
}

.mobile-nav--open {
  display: block;
}

.mobile-nav__list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.mobile-nav__item {
  border-bottom: 1px solid var(--color-border);
}

.mobile-nav__item:last-child {
  border-bottom: none;
}

.mobile-nav__link {
  display: block;
  padding: var(--spacing-sm);
  color: var(--color-text);
  font-weight: 500;
}

.mobile-nav__link:hover,
.mobile-nav__link:focus {
  background-color: var(--color-light);
  color: var(--color-primary);
}

.mobile-nav__link--active {
  color: var(--color-primary);
  background-color: var(--color-light);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-sm) var(--spacing-lg);
  font-size: 1rem;
  font-weight: 600;
  border-radius: 8px;
  cursor: pointer;
  transition: var(--transition);
  border: none;
  text-decoration: none;
}

.btn--primary {
  background-color: var(--color-secondary);
  color: var(--color-white);
}

.btn--primary:hover,
.btn--primary:focus {
  background-color: var(--color-primary);
  color: var(--color-white);
}

.btn--secondary {
  background-color: transparent;
  color: var(--color-secondary);
  border: 2px solid var(--color-secondary);
}

.btn--secondary:hover,
.btn--secondary:focus {
  background-color: var(--color-secondary);
  color: var(--color-white);
}

.btn--small {
  padding: var(--spacing-xs) var(--spacing-sm);
  font-size: 0.875rem;
}

/* Hero Section */
.hero {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
  color: var(--color-white);
  padding: var(--spacing-xxl) 0;
}

.hero__content {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.hero__title {
  color: var(--color-white);
  font-size: 2.25rem;
  margin-bottom: var(--spacing-md);
}

.hero__text {
  font-size: 1.125rem;
  margin-bottom: var(--spacing-lg);
  max-width: 600px;
  opacity: 0.95;
}

.hero__buttons {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.hero .btn--primary {
  background-color: var(--color-white);
  color: var(--color-primary);
}

.hero .btn--primary:hover,
.hero .btn--primary:focus {
  background-color: var(--color-accent);
  color: var(--color-dark);
}

.hero .btn--secondary {
  border-color: var(--color-white);
  color: var(--color-white);
}

.hero .btn--secondary:hover,
.hero .btn--secondary:focus {
  background-color: var(--color-white);
  color: var(--color-primary);
}

/* Sections */
.section {
  padding: var(--spacing-xxl) 0;
}

.section--alt {
  background-color: var(--color-light);
}

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

.section__title {
  margin-bottom: var(--spacing-sm);
}

.section__subtitle {
  color: var(--color-text-light);
  font-size: 1.125rem;
}

/* Cards */
.cards {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
}

.card {
  background-color: var(--color-white);
  border-radius: 12px;
  padding: var(--spacing-lg);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

.card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
}

.card__icon {
  width: 64px;
  height: 64px;
  margin-bottom: var(--spacing-sm);
}

.card__title {
  font-size: 1.25rem;
  margin-bottom: var(--spacing-xs);
}

.card__text {
  color: var(--color-text-light);
  margin-bottom: var(--spacing-sm);
}

.card__price {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-secondary);
}

/* Features */
.features {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
}

.feature {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: var(--spacing-md);
}

.feature__icon {
  width: 80px;
  height: 80px;
  margin-bottom: var(--spacing-sm);
}

.feature__title {
  font-size: 1.25rem;
  margin-bottom: var(--spacing-xs);
}

.feature__text {
  color: var(--color-text-light);
}

/* Testimonials */
.testimonials {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
}

.testimonial {
  background-color: var(--color-white);
  border-radius: 12px;
  padding: var(--spacing-lg);
  box-shadow: var(--shadow-sm);
  position: relative;
}

.testimonial::before {
  content: '"';
  font-size: 4rem;
  color: var(--color-accent);
  position: absolute;
  top: 10px;
  left: 20px;
  line-height: 1;
  font-family: Georgia, serif;
}

.testimonial__text {
  font-style: italic;
  margin-bottom: var(--spacing-md);
  padding-top: var(--spacing-lg);
}

.testimonial__author {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.testimonial__avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background-color: var(--color-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-white);
  font-weight: 700;
  font-size: 1.25rem;
}

.testimonial__info {
  display: flex;
  flex-direction: column;
}

.testimonial__name {
  font-weight: 600;
  color: var(--color-dark);
}

.testimonial__role {
  font-size: 0.875rem;
  color: var(--color-text-light);
}

/* About Content */
.about-content {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xl);
}

.about-block {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.about-block__title {
  color: var(--color-secondary);
}

/* Stats */
.stats {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--spacing-lg);
  padding: var(--spacing-lg) 0;
}

.stat {
  text-align: center;
  padding: var(--spacing-md);
}

.stat__number {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--color-secondary);
  display: block;
}

.stat__label {
  color: var(--color-text-light);
}

/* Contact Info */
.contact-info {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
}

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

.contact-item__icon {
  width: 48px;
  height: 48px;
  flex-shrink: 0;
}

.contact-item__content {
  display: flex;
  flex-direction: column;
}

.contact-item__label {
  font-weight: 600;
  color: var(--color-dark);
  margin-bottom: var(--spacing-xs);
}

.contact-item__value {
  color: var(--color-text-light);
}

/* Thank You Page */
.thank-you {
  min-height: 60vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: var(--spacing-xxl) 0;
}

.thank-you__icon {
  width: 120px;
  height: 120px;
  margin-bottom: var(--spacing-lg);
}

.thank-you__title {
  margin-bottom: var(--spacing-md);
}

.thank-you__text {
  color: var(--color-text-light);
  margin-bottom: var(--spacing-lg);
  max-width: 500px;
}

/* Legal Pages */
.legal {
  padding: var(--spacing-xxl) 0;
}

.legal__content {
  max-width: 800px;
  margin: 0 auto;
}

.legal__content h2 {
  margin-top: var(--spacing-xl);
  margin-bottom: var(--spacing-md);
  color: var(--color-primary);
}

.legal__content h3 {
  margin-top: var(--spacing-lg);
  margin-bottom: var(--spacing-sm);
}

.legal__content p,
.legal__content ul,
.legal__content ol {
  margin-bottom: var(--spacing-md);
}

.legal__updated {
  font-style: italic;
  color: var(--color-text-light);
  margin-bottom: var(--spacing-lg);
}

/* Footer */
.footer {
  background-color: var(--color-dark);
  color: var(--color-white);
  padding: var(--spacing-xl) 0 var(--spacing-md);
}

.footer__content {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
}

.footer__section {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.footer__title {
  color: var(--color-white);
  font-size: 1.125rem;
  margin-bottom: var(--spacing-xs);
}

.footer__text {
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.875rem;
}

.footer__links {
  list-style: none;
  margin: 0;
  padding: 0;
}

.footer__link {
  color: rgba(255, 255, 255, 0.7);
  display: block;
  padding: var(--spacing-xs) 0;
  font-size: 0.875rem;
}

.footer__link:hover,
.footer__link:focus {
  color: var(--color-accent);
}

.footer__bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  margin-top: var(--spacing-lg);
  padding-top: var(--spacing-md);
  text-align: center;
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.5);
}

/* Cookie Banner */
.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background-color: var(--color-dark);
  color: var(--color-white);
  padding: var(--spacing-md);
  box-shadow: 0 -4px 16px rgba(0, 0, 0, 0.2);
  z-index: 2000;
  display: none;
}

.cookie-banner--visible {
  display: block;
}

.cookie-banner__content {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
  max-width: var(--container-width);
  margin: 0 auto;
}

.cookie-banner__text {
  font-size: 0.875rem;
  line-height: 1.5;
}

.cookie-banner__text a {
  color: var(--color-accent);
}

.cookie-banner__buttons {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
}

.cookie-banner .btn {
  flex: 1;
  min-width: 120px;
}

/* Cookie Modal */
.cookie-modal {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(0, 0, 0, 0.6);
  z-index: 3000;
  display: none;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-md);
}

.cookie-modal--visible {
  display: flex;
}

.cookie-modal__content {
  background-color: var(--color-white);
  border-radius: 12px;
  max-width: 500px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: var(--shadow-lg);
}

.cookie-modal__header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-md);
  border-bottom: 1px solid var(--color-border);
}

.cookie-modal__title {
  margin: 0;
  font-size: 1.25rem;
}

.cookie-modal__close {
  background: none;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--color-text-light);
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  transition: var(--transition);
}

.cookie-modal__close:hover,
.cookie-modal__close:focus {
  background-color: var(--color-light);
  color: var(--color-dark);
}

.cookie-modal__body {
  padding: var(--spacing-md);
}

.cookie-option {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  padding: var(--spacing-sm) 0;
  border-bottom: 1px solid var(--color-border);
}

.cookie-option:last-child {
  border-bottom: none;
}

.cookie-option__info {
  flex: 1;
  padding-right: var(--spacing-sm);
}

.cookie-option__title {
  font-weight: 600;
  margin-bottom: var(--spacing-xs);
}

.cookie-option__desc {
  font-size: 0.875rem;
  color: var(--color-text-light);
}

/* Toggle Switch */
.toggle {
  position: relative;
  width: 48px;
  height: 24px;
  flex-shrink: 0;
}

.toggle__input {
  opacity: 0;
  width: 0;
  height: 0;
}

.toggle__slider {
  position: absolute;
  cursor: pointer;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: var(--color-border);
  border-radius: 24px;
  transition: var(--transition);
}

.toggle__slider::before {
  position: absolute;
  content: '';
  height: 18px;
  width: 18px;
  left: 3px;
  bottom: 3px;
  background-color: var(--color-white);
  border-radius: 50%;
  transition: var(--transition);
}

.toggle__input:checked + .toggle__slider {
  background-color: var(--color-secondary);
}

.toggle__input:checked + .toggle__slider::before {
  transform: translateX(24px);
}

.toggle__input:disabled + .toggle__slider {
  opacity: 0.6;
  cursor: not-allowed;
}

.cookie-modal__footer {
  padding: var(--spacing-md);
  border-top: 1px solid var(--color-border);
  display: flex;
  justify-content: flex-end;
  gap: var(--spacing-sm);
}

/* CTA Section */
.cta {
  background: linear-gradient(135deg, var(--color-secondary) 0%, var(--color-primary) 100%);
  color: var(--color-white);
  padding: var(--spacing-xxl) 0;
  text-align: center;
}

.cta__title {
  color: var(--color-white);
  margin-bottom: var(--spacing-md);
}

.cta__text {
  margin-bottom: var(--spacing-lg);
  opacity: 0.95;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.cta .btn--primary {
  background-color: var(--color-white);
  color: var(--color-primary);
}

.cta .btn--primary:hover,
.cta .btn--primary:focus {
  background-color: var(--color-accent);
}

/* Page Header */
.page-header {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
  color: var(--color-white);
  padding: var(--spacing-xl) 0;
  text-align: center;
}

.page-header__title {
  color: var(--color-white);
  margin-bottom: var(--spacing-xs);
}

.page-header__subtitle {
  opacity: 0.9;
}

/* Skip Link */
.skip-link {
  position: absolute;
  top: -40px;
  left: 0;
  background-color: var(--color-primary);
  color: var(--color-white);
  padding: var(--spacing-sm) var(--spacing-md);
  z-index: 9999;
  transition: top var(--transition);
}

.skip-link:focus {
  top: 0;
}

/* Focus Styles */
*:focus {
  outline: 2px solid var(--color-secondary);
  outline-offset: 2px;
}

*:focus:not(:focus-visible) {
  outline: none;
}

*:focus-visible {
  outline: 2px solid var(--color-secondary);
  outline-offset: 2px;
}

/* Media Queries */
@media (min-width: 480px) {
  .hero__buttons {
    flex-direction: row;
  }

  .cookie-banner__content {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }

  .cookie-banner__buttons {
    flex-shrink: 0;
  }

  .cookie-banner .btn {
    flex: none;
  }
}

@media (min-width: 768px) {
  h1 {
    font-size: 2.5rem;
  }

  h2 {
    font-size: 2rem;
  }

  .container {
    padding: 0 var(--spacing-lg);
  }

  .nav {
    display: block;
  }

  .mobile-menu-btn {
    display: none;
  }

  .mobile-nav {
    display: none !important;
  }

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

  .hero__title {
    font-size: 3rem;
  }

  .hero__text {
    font-size: 1.25rem;
  }

  .cards {
    flex-direction: row;
    flex-wrap: wrap;
  }

  .card {
    flex: 1 1 calc(50% - var(--spacing-lg));
    max-width: calc(50% - var(--spacing-lg) / 2);
  }

  .features {
    flex-direction: row;
    flex-wrap: wrap;
  }

  .feature {
    flex: 1 1 calc(50% - var(--spacing-lg));
  }

  .testimonials {
    flex-direction: row;
    flex-wrap: wrap;
  }

  .testimonial {
    flex: 1 1 calc(50% - var(--spacing-lg));
  }

  .footer__content {
    flex-direction: row;
    flex-wrap: wrap;
    justify-content: space-between;
  }

  .footer__section {
    flex: 1 1 200px;
  }
}

@media (min-width: 1024px) {
  h1 {
    font-size: 3rem;
  }

  .hero__title {
    font-size: 3.5rem;
  }

  .card {
    flex: 1 1 calc(33.333% - var(--spacing-lg));
    max-width: calc(33.333% - var(--spacing-lg) * 2 / 3);
  }

  .feature {
    flex: 1 1 calc(25% - var(--spacing-lg));
  }

  .about-content {
    flex-direction: row;
  }

  .about-block {
    flex: 1;
  }

  .stat {
    min-width: 150px;
  }

  .contact-info {
    flex-direction: row;
    flex-wrap: wrap;
  }

  .contact-item {
    flex: 1 1 calc(50% - var(--spacing-lg));
  }
}