:root {
    --dark-blue: #12151F;
    --white: #FFFFFF;
    --secondary: #F4DB7D;
    --primary: #05F4B7;

    --gutter-step: 8px;
}

.color-dark-blue {
    color: var(--dark-blue);
}

.color-white {
    color: var(--white);
}

.bg-dark-blue {
    background-color: var(--dark-blue);
}

.bg-white {
    background-color: var(--white);
}

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

.bg-primary {
    background-color: var(--primary);
}


.text-highlight {
    background-color: var(--primary);
    color: var(--dark-blue);
    padding: 0 4px;
    line-height: 1.4;
}

html {
    scroll-behavior: smooth;
}

html, body {
    padding: 0;
    margin: 0;
    outline: 0;
    height: 100vh;
}

body {
    font-family: Calibri, Arial, sans-serif;
    font-size: 18px;
    color: var(--white);
}

*, *:after, *:before {
    box-sizing: border-box;
    -webkit-box-sizing: border-box;
}

h1,h2,h3,h4,h5,h6 {
    padding: 0;
    margin: 0;
}

.wrapper {
    width: 100%;
    margin: 0 auto;
}

@media (max-width: 576px) {
    /* ЭКРАН МАЛЕНЬКИЙ */
    .sm-hidden {
        display: none;
    }
}

@media (min-width: 576px) {
    /* ЭКРАН БОЛЬШОЙ */
    .sm-visible {
        display: none;
    }
}

@media (max-width: 576px) {
    .wrapper {
        padding: 0 calc(var(--gutter-step) * 4);
    }
}

@media (min-width: 576px) {
    .wrapper {
        width: 540px;
    }
}

@media (min-width: 768px) {
    .wrapper {
        width: 720px;
    }
}

@media (min-width: 992px) {
    .wrapper {
        width: 960px;
    }
}

@media (min-width: 1200px) {
    .wrapper {
        width: 1140px;
    }
}

.section {
    min-height: 100vh;
    width: 100%;

    --indent: 8;

    padding: calc(var(--gutter-step) * var(--indent)) 0;

    overflow: hidden;
}

@media (max-width: 576px) {
    .section {
        --indent: 6;
    }
}

.section .image {
    display: block;
    max-width: 100%;
}

h2 {
    font-size: 62px;
    font-family: Arial, sans-serif;
    line-height: 1.1;
    font-weight: 600;
    letter-spacing: 1px;
}

h3 {
    font-size: 38px;
    font-family: Arial, sans-serif;
    line-height: 1.1;
    font-weight: 300;
    letter-spacing: 1px;
}

@media (max-width: 992px) {
    h2 {
        font-size: 44px;
    }
    
    h3 {
        font-size: 27px;
    }
}

.colors {
    display: flex;
    gap: calc(var(--gutter-step) * 2);
}

.colors > div {
    width: 100%;
    height: 100px;
}

.section-main__image {
    min-width: 45%;

    display: flex;
    align-items: center;

    margin-top: calc(var(--gutter-step) * 4);
    justify-content: center;
}

@media (min-width: 992px) {
    .section-main__image {
        justify-content: flex-end;
    }
}

@keyframes land-top {
    0% {
        opacity: 0;
        transform: translateY(-40%);
    }

    75%, 100% {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes land-left {
    0% {
        opacity: 0;
        transform: translateX(-80%);
    }

    75%, 100% {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes land-right {
    0% {
        opacity: 0;
        transform: translateX(80%);
    }

    75%, 100% {
        opacity: 1;
        transform: translateX(0);
    }
}

.section-main__image .image {
    max-width: 80%;
    height: auto;

    object-fit: contain;

    animation: land-top 2s;
}

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

@media (min-width: 992px) {
    .layout-flex {
        flex-direction: row;
    }
}

.section-main__text {
    min-width: 100%;

    animation: land-top 1.5s;
}

@media (min-width: 992px) {
    .section-main__text {
        min-width: 55%;
    }
}

.section-main__text h2 {
    --margin-size: 4;
    margin-bottom: calc(var(--gutter-step) * var(--margin-size));
}

@media (max-width: 576px) {
    .section-main__text h2 {
        --margin-size: 2;
    }
}

.section-main__nav {
    margin-top: calc(var(--gutter-step) * 4);
    display: flex;
    width: 100%;
    gap: calc(var(--gutter-step) * 3);
}

.section-main__nav--buy {
    width: 100%;
    gap: 0;
}

@media (max-width: 576px) {
    .section-main__nav {
        flex-direction: column;
        gap: calc(var(--gutter-step) * 2);
    }
}

.section-main__nav a {
    outline: none;
    text-decoration: none;
    font-size: 18px;
    color: var(--white);
    border-radius: calc(var(--gutter-step) * 1);
    border: 2px solid var(--white);
    padding: calc(var(--gutter-step) * 1.5) calc(var(--gutter-step) * 2);
    transition: color .2s ease,border-color .2s ease;
}

.section-main__nav--buy a {
    border-radius: 0;
    color: var(--dark-blue);
    border-color: var(--primary);
    background-color: var(--primary);
    text-align: center;
    font-size: 32px;
    font-weight: bold;

    padding: calc(var(--gutter-step) * 2) calc(var(--gutter-step) * 4);
}

.back-link {
    display: flex;
    align-items: center;
    gap: calc(var(--gutter-step) * 1);
}

.back-link, .back-link a {
    font-size: 18px;
    line-height: 20px;
    text-decoration: none;
    color: var(--dark-blue);
    transition: box-shadow .1s;
    box-shadow: 0 1px 0px transparent;
    
    padding-bottom: 1px;
}

.back-link a:hover {
    box-shadow: 0 1px 0px var(--dark-blue);
}


@media (max-width: 576px) {
    .section-main__nav a {
        font-size: 17px;
        padding: calc(var(--gutter-step) * 1) calc(var(--gutter-step) * 2);
    }
}

.section-main__nav a.disabled {
    opacity: 0.5;
    color: inherit!important;
    border-color: inherit!important;
}

.section-main__nav a:hover, .section-main__nav a:active {
    color: var(--primary);
    border-color: var(--primary);
}


.section-main__nav--buy a:hover {
    border-color: var(--dark-blue);
    color: var(--dark-blue);
}

ol, li {
    padding: 0 0 0 0;
    margin: 0;
}

ol {
    margin-top: calc(var(--gutter-step) * 3);
    padding-left: calc(var(--gutter-step) * 4 + 10px);

    counter-reset: my-awesome-counter;
    list-style: none;
}

ol li {
  counter-increment: my-awesome-counter;
  position: relative;
  padding: calc(var(--gutter-step) * 1 - 2px) 0 calc(var(--gutter-step) * 2) 0;
}

ol li::before {
  content: counter(my-awesome-counter);
  background: var(--dark-blue);
  color: var(--white);
  font-weight: bold;
  position: absolute;
  --size: 32px;
  left: calc(-1 * var(--size) - 10px);
  line-height: var(--size);
  width: var(--size);
  height: var(--size);
  top: 0;
  border-radius: 50%;
  text-align: center;
}