@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(1.5rem);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes slideInLeft {
  from {
    opacity: 0;
    transform: translateX(-4rem);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes slideInRight {
  from {
    opacity: 0;
    transform: translateX(4rem);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes pulse {
  0%, 100% {
    transform: scale(1);
    box-shadow: 0 0 0 0 rgba(42, 171, 238, 0.4);
  }
  50% {
    transform: scale(1.03);
    box-shadow: 0 0 0 0.75rem rgba(42, 171, 238, 0);
  }
}

html {
  overflow-x: hidden;
}

body {
  min-height: 100vh;
  background-color: var(--color-bg-dark);
  background-image: url("../assets/images/bg.jpg");
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  background-attachment: fixed;
}

.page {
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: calc(var(--spacing-unit) * 4) 0;
  box-sizing: border-box;
}

.page .container {
  padding-left: var(--space-page-sides);
  padding-right: var(--space-page-sides);
}

.page__grid {
  display: grid;
  grid-template-columns: minmax(0, 42rem) var(--benefits-width);
  grid-template-rows: auto auto;
  gap: 0 var(--page-grid-gap);
  row-gap: var(--subtitle-spacing);
  width: fit-content;
  max-width: 100%;
  margin-left: auto;
  margin-right: auto;
}

.page__title {
  grid-column: 1;
  grid-row: 1;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: var(--title-size);
  line-height: var(--title-line-height);
  letter-spacing: 0;
  text-transform: uppercase;
  max-width: var(--title-max-width);
  text-align: left;
  margin: 0;
  color: var(--color-hero-text);
  animation: slideInLeft var(--anim-duration) var(--anim-ease) both;
}

.page__content {
  grid-column: 1;
  grid-row: 2;
  min-width: 0;
  max-width: 42rem;
  animation: slideInLeft var(--anim-duration) var(--anim-ease) 0.15s both;
}

.benefits {
  grid-column: 2;
  grid-row: 2;
  align-self: start;
  animation: slideInRight var(--anim-duration) var(--anim-ease) 0.2s both;
}

.page__title-highlight {
  color: var(--color-accent);
}

.page__subtitle {
  font-family: var(--font-sans);
  font-weight: 500;
  font-size: var(--subtitle-size);
  line-height: var(--subtitle-line-height);
  letter-spacing: 0;
  color: var(--color-hero-text);
  margin: var(--subtitle-spacing) 0 0;
  max-width: 36.5rem;
}

.page__lead {
  font-family: var(--font-sans);
  font-weight: 100;
  font-size: var(--lead-size);
  line-height: var(--lead-line-height);
  letter-spacing: 0;
  color: var(--color-hero-text);
  margin: var(--lead-spacing) 0 0;
  max-width: 36.5rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--btn-gap);
  padding: var(--btn-padding-y) var(--btn-padding-x);
  border: none;
  border-radius: var(--btn-radius);
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: var(--btn-font-size);
  line-height: var(--btn-line-height);
  letter-spacing: 0;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--color-hero-text);
  cursor: pointer;
  transition: opacity var(--transition-fast), transform var(--transition-fast);
}

.btn:hover {
  opacity: 0.9;
}

.btn:active {
  transform: scale(0.98);
}

.btn--telegram {
  background-color: var(--color-telegram);
  margin-top: var(--btn-margin-top);
  animation: slideInLeft var(--anim-duration) var(--anim-ease) 0.3s both,
             pulse 2s ease-in-out 1.2s infinite;
}

.btn__icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: var(--btn-icon-size);
  height: var(--btn-icon-size);
  color: currentColor;
}

.btn__icon svg,
.btn__icon img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.btn__text {
  color: inherit;
}

.benefits {
  width: 100%;
  max-width: var(--benefits-width);
  margin-top: var(--benefits-offset-top);
  background: var(--benefits-bg);
  border: var(--benefits-border);
  border-radius: var(--benefits-radius);
  padding: var(--benefits-padding);
  animation: fadeInUp var(--anim-duration) var(--anim-ease) 0.2s both;
}

.benefits__list {
  display: flex;
  flex-direction: column;
  gap: var(--benefits-gap);
}

.benefits__item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-family: var(--font-sans);
  font-size: var(--benefits-font-size);
  font-weight: 500;
  line-height: 1.3;
  text-transform: uppercase;
  color: var(--color-hero-text);
}

.benefits__icon {
  flex-shrink: 0;
  width: 1.5rem;
  height: 1.5rem;
  object-fit: contain;
}

@media (max-width: 64rem) {
  .page {
    padding: 2rem 0;
  }

  .page .container {
    --space-page-sides: 2.5rem;
  }

  .page__grid {
    grid-template-columns: 1fr;
    grid-template-rows: auto auto auto;
    row-gap: 2rem;
  }

  .page__title {
    grid-column: 1;
    grid-row: 1;
    max-width: 100%;
  }

  .page__content {
    grid-column: 1;
    grid-row: 2;
    max-width: 100%;
  }

  .benefits {
    grid-column: 1;
    grid-row: 3;
    max-width: 100%;
    justify-self: start;
  }
}

@media (max-width: 48rem) {
  body {
    background-attachment: scroll;
  }

  .page {
    padding: 1.5rem 0;
  }

  .page .container {
    --space-page-sides: max(1rem, 4vw);
  }

  .page__grid {
    row-gap: 1.25rem;
  }

  .page__title {
    font-size: clamp(1.5rem, 6vw + 0.75rem, 2.5rem);
  }

  .page__subtitle {
    font-size: clamp(1.15rem, 3.5vw + 0.5rem, 1.5rem);
    margin-top: 0.85rem;
  }

  .page__lead {
    font-size: clamp(0.95rem, 2.5vw + 0.4rem, 1.2rem);
    margin-top: 0.75rem;
  }

  .btn--telegram {
    margin-top: 1.25rem;
    width: 100%;
    box-sizing: border-box;
  }

  .btn {
    padding: 0.75rem 1.5rem;
    font-size: clamp(0.95rem, 3vw + 0.5rem, 1.15rem);
  }

  .benefits {
    margin-top: 1.25rem;
    padding: 1rem 1.25rem;
  }

  .benefits__list {
    gap: 0.65rem;
  }

  .benefits__item {
    font-size: clamp(0.8rem, 2.2vw + 0.4rem, 0.95rem);
  }

  .benefits__icon {
    width: 1.2rem;
    height: 1.2rem;
  }
}

@media (max-width: 30rem) {
  .page {
    padding: 1.25rem 0;
  }

  .page__grid {
    row-gap: 0.85rem;
  }

  .page__title {
    font-size: clamp(1.2rem, 6vw + 0.5rem, 1.75rem);
  }

  .page__subtitle {
    margin-top: 0.6rem;
    font-size: clamp(1rem, 4vw + 0.35rem, 1.2rem);
  }

  .page__lead {
    margin-top: 0.6rem;
    font-size: clamp(0.85rem, 2.5vw + 0.35rem, 1rem);
  }

  .btn--telegram {
    margin-top: 0.85rem;
  }

  .benefits {
    margin-top: 0.85rem;
    padding: 0.75rem 1rem;
  }

  .benefits__list {
    gap: 0.45rem;
  }

  .benefits__item {
    font-size: clamp(0.75rem, 2.5vw + 0.3rem, 0.9rem);
  }
}

@media (max-height: 700px) {
  .page {
    padding: 1rem 0;
  }

  .page__grid {
    row-gap: 0.75rem;
  }

  .page__title {
    font-size: min(2rem, 6vh);
  }

  .page__subtitle {
    margin-top: 0.5rem;
    font-size: min(1.35rem, 4vh);
  }

  .page__lead {
    margin-top: 0.5rem;
    font-size: min(1rem, 3vh);
  }

  .btn--telegram {
    margin-top: 0.75rem;
  }

  .benefits {
    margin-top: 0.75rem;
    padding: 0.75rem 1rem;
  }

  .benefits__list {
    gap: 0.45rem;
  }

  .benefits__item {
    font-size: min(0.9rem, 2.8vh);
  }
}

@media (max-width: 48rem) and (max-height: 600px) {
  .page {
    padding: 0.75rem 0;
  }

  .page__grid {
    row-gap: 0.5rem;
  }

  .page__title {
    font-size: clamp(1.1rem, 4vw, 1.35rem);
  }

  .page__subtitle {
    font-size: 0.95rem;
    margin-top: 0.4rem;
  }

  .page__lead {
    font-size: 0.85rem;
    margin-top: 0.4rem;
  }

  .btn {
    padding: 0.5rem 1rem;
    font-size: 0.85rem;
  }

  .btn--telegram {
    margin-top: 0.5rem;
  }

  .benefits {
    margin-top: 0.5rem;
    padding: 0.55rem 0.75rem;
  }

  .benefits__list {
    gap: 0.3rem;
  }

  .benefits__item {
    font-size: 0.75rem;
  }

  .benefits__icon {
    width: 1rem;
    height: 1rem;
  }
}