:root {
  --color-bg: #0C1117;
  --color-primary: #28A8FF;
  --color-secondary: #CCFF32;
  --color-text: #F2F5F8;
  --color-button-text: #0C1117;
  --color-text-muted: #B8C5D1;
  --color-accent: #1E8FE8;
  --color-accent-secondary: #B8E632;
  --font-heading: 'Montserrat', sans-serif;
  --font-body: 'Roboto', sans-serif;
  --shadow-deep: 0 10px 40px rgba(0, 0, 0, 0.5);
  --shadow-dramatic: 0 20px 60px rgba(40, 168, 255, 0.3);
  --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.3);
  --shadow-card-hover: 0 16px 48px rgba(40, 168, 255, 0.25);
  --shadow-glow: 0 0 20px rgba(40, 168, 255, 0.4);
  --shadow-glow-secondary: 0 0 20px rgba(204, 255, 50, 0.3);
  --radius-border: 0;
  --radius-pill: 50px;
  --radius-card: 0;
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 2rem;
  --spacing-lg: 3rem;
  --spacing-xl: 4rem;
  --spacing-xxl: 6rem;
  --transition-base: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-fast: 0.15s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
  --gap-grid: 2rem;
  --breakpoint-lg: 1024px;
  --breakpoint-md: 768px;
}

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

body {
  background-color: var(--color-bg);
  background-image: 
    radial-gradient(circle at 20% 50%, rgba(40, 168, 255, 0.03) 0%, transparent 50%),
    radial-gradient(circle at 80% 80%, rgba(204, 255, 50, 0.03) 0%, transparent 50%);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.7;
  min-height: 100vh;
  min-width: 320px;
  position: relative;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body::before {
  background-image: url('data:image/svg+xml;base64,PHN2ZyB3aWR0aD0iMTAwIiBoZWlnaHQ9IjEwMCIgeG1sbnM9Imh0dHA6Ly93d3cudzMub3JnLzIwMDAvc3ZnIj48ZGVmcz48ZmlsdGVyIGlkPSJub2lzZSI+PGZlVHVyYnVsZW5jZSBiYXNlRnJlcXVlbmN5PSIwLjkiIG51bU9jdGF2ZXM9IjQiIHJlc3VsdD0ibm9pc2UiLz48ZmVDb2xvck1hdHJpeCB0eXBlPSJzYXR1cmF0ZSIgdmFsdWVzPSIwIi8+PC9maWx0ZXI+PC9kZWZzPjxyZWN0IHdpZHRoPSIxMDAiIGhlaWdodD0iMTAwIiBmaWx0ZXI9InVybCgjbm9pc2UpIiBvcGFjaXR5PSIwLjAzIi8+PC9zdmc+');
  content: '';
  height: 100%;
  left: 0;
  pointer-events: none;
  position: fixed;
  top: 0;
  width: 100%;
  z-index: 1;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: var(--spacing-md);
}

@media (min-width: 767px) {
  h1, h2, h3, h4, h5, h6, a {
    hyphens: auto;
    word-wrap: anywhere;
  }
}

h1 {
  font-size: 2.5rem;
}

h2 {
  font-size: 2rem;
}

h3 {
  font-size: 1.5rem;
}

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

a:hover {
  color: var(--color-secondary);
}

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

.container {
  margin: 0 auto;
  max-width: 1200px;
  padding: 0 var(--spacing-md);
  position: relative;
  width: 100%;
  z-index: 2;
}

@media (max-width: 767px) {
  .container {
    padding: 0 var(--spacing-sm);
  }
}

.header {
  background-color: rgba(12, 17, 23, 0.9);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(40, 168, 255, 0.2);
  padding: var(--spacing-md) 0;
  position: sticky;
  top: 0;
  transition: all var(--transition-base);
  z-index: 1000;
}

.header.scrolled {
  background-color: rgba(12, 17, 23, 0.95);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

.header::after {
  background: linear-gradient(90deg, transparent, rgba(40, 168, 255, 0.1), transparent);
  bottom: 0;
  content: '';
  height: 1px;
  left: 0;
  position: absolute;
  width: 100%;
}

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

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

.header__logo-icon {
  height: 40px;
  width: 40px;
}

.header__logo-text {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 700;
  transition: all var(--transition-base);
  word-wrap: anywhere;
}

.header__logo:hover .header__logo-text {
  filter: brightness(1.2);
}

.header__nav {
  display: none;
}

.header__nav-list {
  align-items: center;
  display: flex;
  gap: var(--spacing-md);
  list-style: none;
}

.header__nav-item {
  border-right: 1px solid rgba(40, 168, 255, 0.3);
  padding-right: var(--spacing-md);
}

.header__nav-item:last-child {
  border-right: none;
  padding-right: 0;
}

.header__nav-link {
  color: var(--color-text);
  font-size: 1rem;
  padding: var(--spacing-xs) var(--spacing-sm);
  position: relative;
  transition: all var(--transition-base);
}

.header__nav-link::before {
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  bottom: -4px;
  content: '';
  height: 2px;
  left: 50%;
  opacity: 0;
  position: absolute;
  transform: translateX(-50%) scaleX(0);
  transition: all var(--transition-base);
  width: 0;
}

.header__nav-link:hover,
.header__nav-link.is-active {
  color: var(--color-primary);
  transform: translateY(-2px);
}

.header__nav-link:hover::before,
.header__nav-link.is-active::before {
  opacity: 1;
  transform: translateX(-50%) scaleX(1);
  width: 80%;
}

.header__menu-toggle {
  align-items: center;
  background: rgba(40, 168, 255, 0.1);
  border: 1px solid var(--color-primary);
  border-radius: 4px;
  color: var(--color-text);
  cursor: pointer;
  display: flex;
  justify-content: center;
  padding: var(--spacing-xs) var(--spacing-sm);
  transition: all var(--transition-base);
}

.header__menu-toggle:hover {
  background: rgba(40, 168, 255, 0.2);
  border-color: var(--color-secondary);
  box-shadow: var(--shadow-glow);
  color: var(--color-secondary);
  transform: scale(1.05);
}

.sr-only {
  clip: rect(0, 0, 0, 0);
  border: 0;
  height: 1px;
  margin: -1px;
  overflow: hidden;
  padding: 0;
  position: absolute;
  width: 1px;
}

.header__nav--open {
  animation: slideDown 0.3s ease-out;
  display: block;
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background-color: rgba(12, 17, 23, 0.98);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-top: 1px solid rgba(40, 168, 255, 0.2);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
  padding: var(--spacing-md);
}

@keyframes slideDown {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.header__nav--open .header__nav-list {
  flex-direction: column;
  gap: var(--spacing-sm);
}

.header__nav--open .header__nav-item {
  border-right: none;
  border-bottom: 1px solid rgba(40, 168, 255, 0.2);
  padding-right: 0;
  padding-bottom: var(--spacing-sm);
  transition: all var(--transition-base);
}

.header__nav--open .header__nav-item:hover {
  background: rgba(40, 168, 255, 0.05);
  border-radius: 4px;
  padding-left: var(--spacing-sm);
}

.header__nav--open .header__nav-item:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

@media (min-width: 1024px) {
  .header__nav {
    display: block;
    position: static;
  }

  .header__nav--open {
    position: static;
    border-top: none;
    padding: 0;
  }

  .header__nav--open .header__nav-list {
    flex-direction: row;
  }

  .header__nav--open .header__nav-item {
    border-bottom: none;
    border-right: 1px solid rgba(40, 168, 255, 0.3);
    padding-bottom: 0;
    padding-right: var(--spacing-md);
  }

  .header__nav--open .header__nav-item:last-child {
    border-right: none;
    padding-right: 0;
  }

  .header__menu-toggle {
    display: none;
  }
}

.hero {
  display: grid;
  grid-template-columns: 1fr;
  min-height: 85vh;
  overflow: hidden;
  position: relative;
  align-items: center;
}

.hero__left {
  align-items: center;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: var(--spacing-xl) var(--spacing-md);
  position: relative;
  z-index: 2;
}

.hero__left::before {
  background: radial-gradient(circle at 30% 50%, rgba(40, 168, 255, 0.1) 0%, transparent 50%);
  content: '';
  height: 100%;
  left: 0;
  position: absolute;
  top: 0;
  width: 100%;
  z-index: -1;
}

.hero__right {
  align-items: center;
  background: linear-gradient(135deg, rgba(40, 168, 255, 0.15) 0%, rgba(204, 255, 50, 0.15) 100%);
  display: flex;
  justify-content: center;
  padding: var(--spacing-xl) var(--spacing-md);
  position: relative;
}

.hero__right::before {
  animation: pulse 4s ease-in-out infinite;
  background: radial-gradient(circle at center, rgba(40, 168, 255, 0.2) 0%, transparent 70%);
  content: '';
  height: 100%;
  left: 0;
  position: absolute;
  top: 0;
  width: 100%;
  z-index: 1;
}

@keyframes pulse {
  0%, 100% {
    opacity: 0.5;
    transform: scale(1);
  }
  50% {
    opacity: 0.8;
    transform: scale(1.1);
  }
}

.hero__title {
  animation: fadeInUp 0.8s ease-out;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  font-size: 2.5rem;
  margin-bottom: var(--spacing-md);
  text-align: center;
  text-shadow: 0 0 30px rgba(40, 168, 255, 0.3);
}

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

.hero__subtitle {
  animation: fadeInUp 0.8s ease-out 0.2s both;
  color: var(--color-text-muted);
  font-size: 1.25rem;
  margin-bottom: var(--spacing-lg);
  text-align: center;
}

.hero__problem-list {
  list-style: none;
  margin-bottom: var(--spacing-lg);
  width: 100%;
}

.hero__problem-item {
  animation: fadeInUp 0.8s ease-out both;
  border-left: 4px solid var(--color-primary);
  margin-bottom: var(--spacing-md);
  padding-left: var(--spacing-md);
  position: relative;
  transition: all var(--transition-base);
  background: rgba(40, 168, 255, 0.03);
  border-radius: 0 6px 6px 0;
  padding: var(--spacing-sm) var(--spacing-md);
}

.hero__problem-item:nth-child(1) {
  animation-delay: 0.4s;
}

.hero__problem-item:nth-child(2) {
  animation-delay: 0.5s;
}

.hero__problem-item:nth-child(3) {
  animation-delay: 0.6s;
}

.hero__problem-item:hover {
  background: rgba(40, 168, 255, 0.08);
  border-left-color: var(--color-secondary);
  box-shadow: 0 4px 12px rgba(40, 168, 255, 0.15);
  transform: translateX(8px);
}

.hero__visual {
  animation: fadeIn 1s ease-out 0.3s both;
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-dramatic);
  height: 400px;
  max-width: 100%;
  object-fit: cover;
  position: relative;
  transition: all var(--transition-slow);
  width: 100%;
  z-index: 2;
}

.hero__visual::after {
  background: linear-gradient(135deg, rgba(40, 168, 255, 0.1) 0%, rgba(204, 255, 50, 0.1) 100%);
  border-radius: var(--radius-card);
  content: '';
  height: 100%;
  left: 0;
  opacity: 0;
  position: absolute;
  top: 0;
  transition: opacity var(--transition-base);
  width: 100%;
  z-index: 1;
}

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

.hero__visual:hover {
  box-shadow: var(--shadow-dramatic), var(--shadow-glow);
  transform: scale(1.03);
}

.hero__visual:hover::after {
  opacity: 1;
}

@media (min-width: 1024px) {
  .hero {
    grid-template-columns: 1fr 1fr;
  }

  .hero__title {
    font-size: 3.5rem;
    text-align: left;
  }

  .hero__subtitle {
    text-align: left;
  }
}

.section {
  padding: var(--spacing-xl) 0;
  position: relative;
}

.section:nth-child(even) {
  background: linear-gradient(180deg, transparent 0%, rgba(40, 168, 255, 0.03) 50%, transparent 100%);
  position: relative;
}

.section:nth-child(even)::before {
  background: radial-gradient(circle at 50% 0%, rgba(40, 168, 255, 0.05) 0%, transparent 70%);
  content: '';
  height: 100%;
  left: 0;
  position: absolute;
  top: 0;
  width: 100%;
  z-index: 0;
}

.section:nth-child(even) > .container {
  position: relative;
  z-index: 1;
}

.section__title {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  margin-bottom: var(--spacing-lg);
  position: relative;
  text-align: center;
}

.section__title::after {
  background: linear-gradient(90deg, transparent, var(--color-primary), var(--color-secondary), transparent);
  bottom: calc(-1 * var(--spacing-sm));
  content: '';
  height: 3px;
  left: 50%;
  position: absolute;
  transform: translateX(-50%);
  width: 120px;
  border-radius: 2px;
}

.section__content {
  color: var(--color-text-muted);
  margin-bottom: var(--spacing-md);
}

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

.section__content p:last-child {
  margin-bottom: 0;
}

.button {
  background: linear-gradient(135deg, var(--color-primary) 0%, #1E8FE8 100%);
  border: none;
  border-radius: var(--radius-pill);
  color: var(--color-button-text);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 600;
  overflow: hidden;
  padding: var(--spacing-sm) var(--spacing-lg);
  position: relative;
  transition: all var(--transition-base);
}

.button::before {
  background: linear-gradient(135deg, var(--color-secondary) 0%, var(--color-accent-secondary) 100%);
  content: '';
  height: 100%;
  left: -100%;
  position: absolute;
  top: 0;
  transition: left var(--transition-base);
  width: 100%;
  z-index: -1;
}

.button:active {
  transform: translateY(-1px) scale(0.98);
}

.button:hover {
  box-shadow: var(--shadow-dramatic), var(--shadow-glow);
  transform: translateY(-3px);
}

.button:hover::before {
  left: 0;
}

.button__arrow {
  transition: transform var(--transition-base);
}

.button:hover .button__arrow {
  transform: translateX(4px);
}

.card {
  background: linear-gradient(135deg, rgba(40, 168, 255, 0.06) 0%, rgba(204, 255, 50, 0.03) 100%);
  border: 1px solid rgba(40, 168, 255, 0.25);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-card);
  margin-bottom: var(--spacing-md);
  overflow: hidden;
  padding: var(--spacing-md);
  position: relative;
  transition: all var(--transition-base);
  will-change: transform;
}

.card::before {
  background: linear-gradient(135deg, rgba(40, 168, 255, 0.1) 0%, transparent 100%);
  content: '';
  height: 100%;
  left: 0;
  opacity: 0;
  position: absolute;
  top: 0;
  transition: opacity var(--transition-base);
  width: 100%;
  z-index: 0;
}

.card:hover {
  border-color: rgba(40, 168, 255, 0.5);
  box-shadow: var(--shadow-card-hover), var(--shadow-glow);
  transform: translateY(-6px) scale(1.01);
}

.card:hover::before {
  opacity: 1;
}

.card > * {
  position: relative;
  z-index: 1;
}

.card__title {
  color: var(--color-primary);
  margin-bottom: var(--spacing-sm);
  transition: color var(--transition-base);
}

.card:hover .card__title {
  color: var(--color-secondary);
}

.card__content {
  color: var(--color-text-muted);
  line-height: 1.8;
  margin-bottom: var(--spacing-sm);
}

.card__content:last-child {
  margin-bottom: 0;
}

.card__content strong {
  color: var(--color-text);
  font-weight: 600;
}

.card__image {
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-card);
  height: auto;
  margin-bottom: var(--spacing-md);
  object-fit: cover;
  transition: all var(--transition-base);
  width: 100%;
}

.card:hover .card__image {
  box-shadow: var(--shadow-card-hover);
  transform: scale(1.02);
}

.form {
  max-width: 600px;
  width: 100%;
}

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

.form__label {
  display: block;
  font-weight: 600;
  margin-bottom: var(--spacing-xs);
}

.form__input,
.form__textarea {
  background-color: rgba(40, 168, 255, 0.06);
  border: 1px solid rgba(40, 168, 255, 0.3);
  border-radius: 6px;
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: 1rem;
  padding: var(--spacing-sm) var(--spacing-md);
  transition: all var(--transition-base);
  width: 100%;
}

.form__input:focus,
.form__textarea:focus {
  background-color: rgba(40, 168, 255, 0.08);
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(40, 168, 255, 0.1), var(--shadow-glow);
  outline: none;
  transform: translateY(-2px);
}

.form__textarea {
  min-height: 150px;
  resize: vertical;
}

.form__checkbox-group {
  align-items: flex-start;
  display: flex;
  gap: var(--spacing-xs);
  margin-bottom: var(--spacing-md);
}

.form__checkbox {
  margin-top: 4px;
}

.form__error {
  color: #ff6b6b;
  display: none;
  font-size: 0.875rem;
  margin-top: var(--spacing-xs);
}

.form__error--show {
  display: block;
}

.footer {
  background: linear-gradient(180deg, rgba(40, 168, 255, 0.05) 0%, rgba(12, 17, 23, 0.95) 100%);
  border-top: 1px solid rgba(40, 168, 255, 0.2);
  margin-top: var(--spacing-xxl);
  padding: var(--spacing-xl) 0 var(--spacing-md);
  position: relative;
}

.footer::before {
  background: linear-gradient(90deg, transparent, rgba(40, 168, 255, 0.2), transparent);
  content: '';
  height: 1px;
  left: 0;
  position: absolute;
  top: 0;
  width: 100%;
}

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

.footer__column-title {
  color: var(--color-primary);
  font-size: 1.125rem;
  margin-bottom: var(--spacing-sm);
}

.footer__list {
  list-style: none;
}

.footer__list-item {
  margin-bottom: var(--spacing-xs);
}

.footer__link {
  color: var(--color-text);
  transition: color var(--transition-base);
}

.footer__link {
  position: relative;
  transition: all var(--transition-base);
}

.footer__link::after {
  background: var(--color-primary);
  bottom: -2px;
  content: '';
  height: 1px;
  left: 0;
  position: absolute;
  transform: scaleX(0);
  transition: transform var(--transition-base);
  width: 100%;
}

.footer__link:hover {
  color: var(--color-primary);
  transform: translateX(4px);
}

.footer__link:hover::after {
  transform: scaleX(1);
}

.footer__copyright {
  border-top: 1px solid rgba(40, 168, 255, 0.2);
  margin-top: var(--spacing-lg);
  padding-top: var(--spacing-md);
  text-align: center;
}

.footer__policy-links {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
  justify-content: center;
  margin-bottom: var(--spacing-sm);
}

.cookie-banner {
  animation: slideUp 0.5s ease-out;
  background-color: rgba(12, 17, 23, 0.98);
  backdrop-filter: blur(10px);
  border-top: 2px solid var(--color-primary);
  bottom: 0;
  box-shadow: var(--shadow-deep), 0 -4px 20px rgba(40, 168, 255, 0.2);
  display: none;
  left: 0;
  padding: var(--spacing-md);
  position: fixed;
  width: 100%;
  z-index: 10000;
}

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

@keyframes slideUp {
  from {
    transform: translateY(100%);
  }
  to {
    transform: translateY(0);
  }
}

.cookie-banner__content {
  align-items: center;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
  margin: 0 auto;
  max-width: 1200px;
}

.cookie-banner__text {
  text-align: center;
}

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

.cookie-settings {
  display: none;
  margin-top: var(--spacing-md);
}

.cookie-settings--show {
  display: block;
}

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

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

.cookie-settings__toggle {
  appearance: none;
  background-color: rgba(40, 168, 255, 0.2);
  border-radius: 20px;
  cursor: pointer;
  height: 24px;
  position: relative;
  transition: all var(--transition-base);
  width: 48px;
}

.cookie-settings__toggle:hover {
  background-color: rgba(40, 168, 255, 0.3);
}

.cookie-settings__toggle:checked {
  background: linear-gradient(135deg, var(--color-primary) 0%, #1E8FE8 100%);
  box-shadow: 0 0 10px rgba(40, 168, 255, 0.5);
}

.cookie-settings__toggle::before {
  background-color: var(--color-text);
  border-radius: 50%;
  content: '';
  height: 18px;
  left: 3px;
  position: absolute;
  top: 3px;
  transition: transform var(--transition-base);
  width: 18px;
}

.cookie-settings__toggle:checked::before {
  transform: translateX(24px);
}

.back-to-top {
  align-items: center;
  background: linear-gradient(135deg, var(--color-primary) 0%, #1E8FE8 100%);
  border-radius: 50%;
  bottom: var(--spacing-md);
  box-shadow: var(--shadow-card);
  color: var(--color-button-text);
  cursor: pointer;
  display: none;
  height: 56px;
  justify-content: center;
  position: fixed;
  right: var(--spacing-md);
  transition: all var(--transition-base);
  width: 56px;
  z-index: 999;
}

.back-to-top--show {
  animation: fadeInUp 0.5s ease-out;
  display: flex;
}

.back-to-top:hover {
  background: linear-gradient(135deg, var(--color-secondary) 0%, var(--color-accent-secondary) 100%);
  box-shadow: var(--shadow-dramatic), var(--shadow-glow-secondary);
  color: var(--color-button-text);
  transform: translateY(-6px) scale(1.1);
}

.back-to-top:active {
  transform: translateY(-4px) scale(1.05);
}

.grid,
.grid-2 {
  display: grid;
  gap: var(--gap-grid);
  grid-template-columns: 1fr;
}

@media (min-width: 768px) and (max-width: 1023px) {
  .grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
  }

  .hero__title {
    font-size: 2.75rem;
  }

  .section {
    padding: var(--spacing-xl) 0;
  }

  .hero__visual {
    height: 350px;
  }
}

@media (min-width: 768px) {
  .grid-2 {
    grid-template-columns: repeat(2, 1fr);
  }

  .footer__container {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .footer__container {
    grid-template-columns: repeat(4, 1fr);
  }

  .grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (min-width: 1200px) {
  .card {
    padding: var(--spacing-xl);
  }
}

.card--spaced {
  margin-top: var(--spacing-md);
}

.card--centered {
  margin: 0 auto;
  max-width: 600px;
  text-align: center;
}

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

  h2 {
    font-size: 2.5rem;
  }

  h3 {
    font-size: 2rem;
  }

  .hero__subtitle {
    font-size: 1.5rem;
  }

  .section__content {
    font-size: 1.125rem;
  }

  .hero__visual {
    height: 500px;
  }

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

@media (max-width: 767px) {
  .hero {
    min-height: 70vh;
  }

  .hero__left {
    padding: var(--spacing-lg) var(--spacing-sm);
  }

  .hero__right {
    padding: var(--spacing-lg) var(--spacing-sm);
  }

  .hero__title {
    font-size: 1.875rem;
    line-height: 1.3;
    margin-bottom: var(--spacing-sm);
  }

  .hero__subtitle {
    font-size: 1.0625rem;
    margin-bottom: var(--spacing-md);
  }

  .hero__problem-list {
    margin-bottom: var(--spacing-md);
  }

  .hero__problem-item {
    font-size: 0.9375rem;
    margin-bottom: var(--spacing-sm);
    padding: var(--spacing-xs) var(--spacing-sm);
  }

  .hero__visual {
    height: 300px;
    border-radius: 8px;
  }

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

  .section__title {
    font-size: 1.75rem;
    margin-bottom: var(--spacing-md);
  }

  .section__title::after {
    width: 80px;
    height: 2px;
  }

  .card {
    margin-bottom: var(--spacing-sm);
    border-radius: 8px;
  }

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

  .card__content {
    font-size: 0.9375rem;
    line-height: 1.7;
  }

  .card__image {
    margin-bottom: var(--spacing-sm);
    border-radius: 6px;
  }

  .button {
    font-size: 0.9375rem;
    padding: var(--spacing-xs) var(--spacing-md);
    width: 100%;
    justify-content: center;
  }

  .back-to-top {
    bottom: var(--spacing-sm);
    height: 48px;
    right: var(--spacing-sm);
    width: 48px;
  }

  .footer {
    margin-top: var(--spacing-xl);
    padding: var(--spacing-lg) 0 var(--spacing-md);
  }

  .footer__container {
    gap: var(--spacing-md);
  }

  .footer__column-title {
    font-size: 1rem;
    margin-bottom: var(--spacing-xs);
  }

  .footer__list-item {
    font-size: 0.875rem;
    margin-bottom: 0.375rem;
  }

  .cookie-banner {
    padding: var(--spacing-sm);
  }

  .cookie-banner__content {
    padding: 0;
  }

  .cookie-banner__text {
    font-size: 0.875rem;
    line-height: 1.6;
  }

  .cookie-banner__buttons {
    flex-direction: column;
    width: 100%;
    gap: var(--spacing-xs);
  }

  .cookie-banner__buttons .button {
    width: 100%;
    font-size: 0.875rem;
  }

  .form {
    max-width: 100%;
  }

  .form__input,
  .form__textarea {
    font-size: 16px;
    padding: var(--spacing-sm);
  }

  .header {
    padding: var(--spacing-sm) 0;
  }

  .header__logo-text {
    font-size: 1.125rem;
  }

  .header__logo-icon {
    height: 36px;
    width: 36px;
  }
}