/*=============== GOOGLE FONTS ===============*/
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500&family=Poppins:wght@600;700&display=swap');

/*=============== CSS VARIABLES ===============*/
:root {
  /* Colors */
  --bg-color: #111827;
  --text-color: #F3F4F6;
  --accent-color: #34D399;
  --accent-color-hover: #2dbb88;
  --secondary-text-color: #9CA3AF;
  --container-color: #1F2937;

  /* Typography */
  --font-body: 'Inter', sans-serif;
  --font-headings: 'Poppins', sans-serif;

  --h1-font-size: 2.5rem;
  --h2-font-size: 2rem;
  --h3-font-size: 1.25rem;
  --normal-font-size: 1rem;
  --small-font-size: 0.875rem;

  /* Spacing */
  --header-height: 5rem;
  --spacing-1: 0.5rem;
  --spacing-2: 1rem;
  --spacing-3: 1.5rem;
  --spacing-4: 2rem;
}

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

html {
  scroll-behavior: smooth;
}

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

h1, h2, h3 {
  font-family: var(--font-headings);
  font-weight: 700;
}

ul {
  list-style: none;
}

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

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

/*=============== REUSABLE CSS CLASSES ===============*/
.container {
  max-width: 1120px;
  margin-left: auto;
  margin-right: auto;
  padding: 0 var(--spacing-2);
}

/*=============== HEADER ===============*/
.header {
  width: 100%;
  position: fixed;
  top: 0;
  left: 0;
  z-index: 100;
  background-color: rgba(17, 24, 39, 0.8);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--container-color);
}

.header__nav {
  height: var(--header-height);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.header__logo {
  font-family: var(--font-headings);
  font-size: var(--h3-font-size);
  font-weight: 700;
  transition: color 0.3s;
}

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

.header__list {
  display: flex;
  column-gap: var(--spacing-4);
}

.header__link {
  font-size: var(--normal-font-size);
  font-weight: 500;
  position: relative;
  transition: color 0.3s;
}

.header__link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--accent-color);
  transition: width 0.3s ease-in-out;
}

.header__link:hover {
  color: var(--accent-color);
}

.header__link:hover::after {
  width: 100%;
}


/*=============== FOOTER ===============*/
.footer {
    padding-top: calc(var(--spacing-4) * 2);
    border-top: 1px solid var(--container-color);
}

.footer__container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: var(--spacing-4);
    padding-bottom: calc(var(--spacing-4) * 2);
}

.footer__logo {
    font-family: var(--font-headings);
    font-size: var(--h3-font-size);
    font-weight: 700;
    margin-bottom: var(--spacing-2);
    display: inline-block;
}

.footer__description {
    color: var(--secondary-text-color);
    font-size: var(--small-font-size);
}

.footer__title {
    font-size: var(--h3-font-size);
    margin-bottom: var(--spacing-2);
}

.footer__list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-1);
}

.footer__link {
    color: var(--secondary-text-color);
    font-size: var(--normal-font-size);
    transition: color 0.3s, padding-left 0.3s;
}

.footer__link:hover {
    color: var(--accent-color);
    padding-left: 5px;
}

.footer__list--contacts {
    gap: var(--spacing-2);
}

.footer__contact-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-1);
    color: var(--secondary-text-color);
    font-size: var(--small-font-size);
}

.footer__contact-item i {
    color: var(--accent-color);
    width: 20px;
    height: 20px;
}

.footer__copy {
    padding: var(--spacing-3) 0;
    text-align: center;
    border-top: 1px solid var(--container-color);
    font-size: var(--small-font-size);
    color: var(--secondary-text-color);
}
/*=============== BUTTONS ===============*/
.button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-1);
    background-color: var(--accent-color);
    color: var(--bg-color);
    padding: 0.9rem 1.75rem;
    border-radius: 50px;
    font-family: var(--font-headings);
    font-weight: 600;
    transition: all 0.3s ease;
    border: 2px solid var(--accent-color);
}

.button:hover {
    background-color: transparent;
    color: var(--accent-color);
}

.button__icon {
    transition: transform 0.3s ease;
}

.button:hover .button__icon {
    transform: translateX(5px);
}

/*=============== HERO ===============*/
.hero {
    position: relative;
    height: 100vh;
    min-height: 700px;
    display: flex;
    align-items: center;
    overflow: hidden; /* Важно, чтобы canvas не выходил за пределы */
}

.hero__canvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

.hero__container {
    position: relative;
    z-index: 2;
}

.hero__content {
    max-width: 650px;
}

.hero__title {
    font-size: 3.5rem; /* Увеличим для главной секции */
    line-height: 1.2;
    margin-bottom: var(--spacing-2);
}

.hero__description {
    font-size: 1.125rem;
    color: var(--secondary-text-color);
    margin-bottom: var(--spacing-3);
    max-width: 550px;
}

/* Адаптация для мобильных устройств */
@media screen and (max-width: 768px) {
    .hero__title {
        font-size: 2.5rem;
    }
    .hero__description {
        font-size: 1rem;
    }
}
/*=============== REUSABLE SECTION STYLES ===============*/
.section {
    padding: 6rem 0 2rem;
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.section.is-visible {
    opacity: 1;
    transform: translateY(0);
}

.section__container {
    display: flex;
    flex-direction: column;
    gap: 3rem;
}

.section__header {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.5rem;
    text-align: center;
}

@media screen and (min-width: 768px) {
    .section__header {
        grid-template-columns: 0.5fr 1fr;
        text-align: left;
        align-items: center;
    }
}

.section__title {
    font-size: var(--h2-font-size);
}

.section__subtitle {
    color: var(--secondary-text-color);
    font-size: var(--normal-font-size);
}


/*=============== GROWTH SECTION ===============*/
.growth__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-3);
}

.growth-card {
    background-color: var(--container-color);
    padding: var(--spacing-3);
    border-radius: 12px;
    border: 1px solid transparent;
    transition: transform 0.3s ease, border-color 0.3s ease;
    cursor: default;
}

.growth-card:hover {
    transform: translateY(-8px);
    border-color: var(--accent-color);
}

.growth-card__icon-wrapper {
    width: 50px;
    height: 50px;
    display: grid;
    place-items: center;
    background-color: var(--bg-color);
    border-radius: 8px;
    margin-bottom: var(--spacing-2);
}

.growth-card__icon {
    width: 28px;
    height: 28px;
    color: var(--accent-color);
}

.growth-card__title {
    font-size: var(--h3-font-size);
    margin-bottom: var(--spacing-1);
}

.growth-card__description {
    color: var(--secondary-text-color);
    margin-bottom: var(--spacing-2);
    min-height: 80px; /* Для выравнивания высоты карточек */
}

.growth-card__details {
    max-height: 0;
    overflow: hidden;
    opacity: 0;
    transition: max-height 0.4s ease-in-out, opacity 0.4s ease-in-out;
}

.growth-card:hover .growth-card__details {
    max-height: 200px; /* Достаточная высота для контента */
    opacity: 1;
}

.growth-card__details p {
    font-size: var(--small-font-size);
    color: var(--text-color);
    border-top: 1px solid var(--bg-color);
    padding-top: var(--spacing-2);
}

/*=============== AUTOMATION SECTION ===============*/
.automation__body {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-4);
    position: relative;
}

@media screen and (min-width: 768px) {
    .automation__body {
        grid-template-columns: 1fr 1fr;
        gap: var(--spacing-3);
    }
    
    .automation__body::after {
        content: '';
        position: absolute;
        left: 50%;
        top: 20%;
        bottom: 20%;
        transform: translateX(-50%);
        border-left: 2px dashed var(--container-color);
    }
}

.automation-panel {
    padding: var(--spacing-3);
    border-radius: 12px;
    border: 1px solid var(--container-color);
}

.automation-panel--before {
    background-color: transparent;
    border-style: dashed;
}

.automation-panel--after {
    background-color: var(--container-color);
    border-color: var(--accent-color);
}

.automation-panel__header {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
    margin-bottom: var(--spacing-2);
}

.automation-panel__icon {
    width: 32px;
    height: 32px;
}

.automation-panel--before .automation-panel__icon {
    color: var(--secondary-text-color);
}

.automation-panel--after .automation-panel__icon {
    color: var(--accent-color);
}

.automation-panel__title {
    font-size: var(--h3-font-size);
}

.automation-panel__list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-2);
}

.automation-panel__item {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-1);
    color: var(--secondary-text-color);
}

.automation-panel--after .automation-panel__item {
    color: var(--text-color);
}

.automation-panel__item i {
    flex-shrink: 0;
    width: 20px;
    height: 20px;
    margin-top: 2px;
}

.automation-panel--before .automation-panel__item i {
    color: #ef4444; /* Red for 'X' icon */
}

.automation-panel--after .automation-panel__item i {
    color: var(--accent-color); /* Accent green for 'Check' icon */
}
/*=============== TECH SECTION (ACCORDION) ===============*/
.tech__accordion {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-2);
}

.accordion-item {
    background-color: var(--container-color);
    border-radius: 8px;
    border: 1px solid transparent;
    transition: border-color 0.3s;
}

.accordion-item.is-open {
    border-color: var(--accent-color);
}

.accordion-item__header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-2) var(--spacing-3);
    cursor: pointer;
    user-select: none;
}

.accordion-item__title {
    font-size: 1.1rem;
    font-family: var(--font-body);
    font-weight: 500;
}

.accordion-item__icon {
    width: 24px;
    height: 24px;
    color: var(--accent-color);
    transition: transform 0.3s ease-in-out;
    flex-shrink: 0;
}

.accordion-item.is-open .accordion-item__icon {
    transform: rotate(45deg);
}

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

.accordion-item.is-open .accordion-item__content {
    /* Значение должно быть больше максимальной высоты контента */
    max-height: 200px; 
}

.accordion-item__text {
    padding: 0 var(--spacing-3) var(--spacing-3);
    color: var(--secondary-text-color);
    line-height: 1.7;
    border-top: 1px solid var(--bg-color);
    padding-top: var(--spacing-2);
}
/*=============== AI PRACTICES (SWIPER) ===============*/
.practices__container {
    position: relative;
    padding: 0 1rem; /* Отступы для кнопок навигации */
}

.swiper {
    width: 100%;
    padding-top: 1rem;
    padding-bottom: 3rem; /* Место для пагинации */
}

.swiper-slide {
    height: auto; /* Для авто-высоты карточек */
}

.practice-card {
    background-color: var(--container-color);
    border-radius: 12px;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    height: 100%;
}

.practice-card__img {
    width: 100%;
    height: 180px;
    object-fit: cover;
    opacity: 0.7;
}

.practice-card__content {
    padding: var(--spacing-3);
    flex-grow: 1;
}

.practice-card__icon {
    width: 32px;
    height: 32px;
    color: var(--accent-color);
    margin-bottom: var(--spacing-1);
}

.practice-card__title {
    font-size: var(--h3-font-size);
    margin-bottom: var(--spacing-1);
}

.practice-card__text {
    color: var(--secondary-text-color);
    font-size: var(--small-font-size);
}

/* Swiper Controls */
.swiper-button-next,
.swiper-button-prev {
    color: var(--accent-color);
    top: 50%;
    transform: translateY(-70%); /* Центрирование с учетом пагинации */
}

.swiper-button-next:after,
.swiper-button-prev:after {
    font-size: 1.5rem !important;
    font-weight: 800;
}

.swiper-pagination-bullet {
    background-color: var(--secondary-text-color);
}

.swiper-pagination-bullet-active {
    background-color: var(--accent-color);
}

/*=============== CONTACT FORM ===============*/
.contact__body {
    max-width: 600px;
    margin: 0 auto;
}

.contact__form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-2);
}

.form__group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.form__label {
    font-weight: 500;
    font-size: var(--small-font-size);
}

.form__input {
    width: 100%;
    padding: 0.9rem 1.2rem;
    border-radius: 8px;
    border: 1px solid var(--container-color);
    background-color: var(--bg-color);
    color: var(--text-color);
    font-size: var(--normal-font-size);
    font-family: var(--font-body);
    transition: border-color 0.3s, box-shadow 0.3s;
}

.form__input:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 0 0 3px rgba(52, 211, 153, 0.2);
}

/* Captcha styling */
.captcha__wrapper {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
    background-color: var(--container-color);
    padding: 0.5rem 1.2rem;
    border-radius: 8px;
}

.captcha__wrapper span {
    color: var(--secondary-text-color);
}

.captcha__wrapper input {
    border: none;
    background: none;
    padding: 0.5rem;
    width: 60px;
    text-align: center;
}
.captcha__wrapper input:focus {
    box-shadow: none;
}

/* Checkbox styling */
.form__group--checkbox {
    flex-direction: row;
    align-items: center;
    user-select: none;
}

.form__group--checkbox label {
    font-size: var(--small-font-size);
    color: var(--secondary-text-color);
}

.form__group--checkbox a {
    color: var(--accent-color);
    text-decoration: underline;
}

.form__checkbox {
    width: 1.25em;
    height: 1.25em;
    accent-color: var(--accent-color);
}

/* Button modifier */
.button--full {
    width: 100%;
    margin-top: var(--spacing-1);
    font-size: 1.1rem;
    padding: 1rem;
}

/* Success Message */
.form__success-message {
    display: none; /* Hidden by default */
    text-align: center;
    padding: 3rem 1rem;
    border: 1px dashed var(--accent-color);
    border-radius: 8px;
    background-color: var(--container-color);
}

.form__success-message.is-visible {
    display: block; /* Shown via JS */
}

.form__success-message i {
    width: 48px;
    height: 48px;
    color: var(--accent-color);
    margin-bottom: var(--spacing-2);
}

.form__success-message h3 {
    font-size: var(--h3-font-size);
}

.form__success-message p {
    color: var(--secondary-text-color);
}
/*=============== COOKIE POPUP ===============*/
.cookie-popup {
    position: fixed;
    bottom: -100%; /* Initially hidden */
    left: 0;
    right: 0;
    width: 100%;
    z-index: 200;
    background-color: var(--container-color);
    box-shadow: 0 -5px 20px rgba(0, 0, 0, 0.2);
    border-top: 1px solid var(--bg-color);
    transition: bottom 0.5s ease-in-out;
}

.cookie-popup.is-visible {
    bottom: 0; /* Shown via JS */
}

.cookie-popup__content {
    max-width: 1120px;
    margin: 0 auto;
    padding: var(--spacing-2) var(--spacing-3);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-2);
}

@media screen and (min-width: 768px) {
    .cookie-popup__content {
        flex-direction: row;
    }
}

.cookie-popup__text {
    color: var(--secondary-text-color);
    text-align: center;
}

.cookie-popup__text a {
    color: var(--accent-color);
    text-decoration: underline;
}

.cookie-popup__button {
    background-color: var(--accent-color);
    color: var(--bg-color);
    border: none;
    padding: 0.75rem 1.5rem;
    border-radius: 50px;
    cursor: pointer;
    font-weight: 500;
    white-space: nowrap;
    transition: background-color 0.3s;
}

.cookie-popup__button:hover {
    background-color: var(--accent-color-hover);
}

/*=============== POLICY PAGES STYLING ===============*/
.pages .container {
    padding-top: calc(var(--header-height) + 3rem);
    padding-bottom: 5rem;
    max-width: 800px; /* Оптимальная ширина для чтения */
}

.pages h1, .pages h2 {
    font-family: var(--font-headings);
    line-height: 1.3;
}

.pages h1 {
    font-size: 2.8rem;
    margin-bottom: var(--spacing-3);
}

.pages h2 {
    font-size: 1.8rem;
    margin-top: var(--spacing-4);
    margin-bottom: var(--spacing-2);
    border-bottom: 1px solid var(--container-color);
    padding-bottom: var(--spacing-1);
}

.pages p {
    margin-bottom: var(--spacing-2);
    color: var(--secondary-text-color);
    line-height: 1.8;
}

.pages ul {
    list-style: disc;
    padding-left: var(--spacing-3);
    margin-bottom: var(--spacing-2);
}

.pages li {
    margin-bottom: var(--spacing-1);
    color: var(--secondary-text-color);
    line-height: 1.8;
}

.pages a {
    color: var(--accent-color);
    text-decoration: none;
    border-bottom: 1px solid transparent;
    transition: border-color 0.3s;
}

.pages a:hover {
    border-color: var(--accent-color);
}

.pages strong {
    color: var(--text-color);
    font-weight: 500;
}