/* === ROOT VARIABLES === */
:root {
	--color-background: #111827; /* Почти черный */
	--color-text: #f9fafb; /* Светло-серый */
	--color-primary: #4f46e5; /* Индиго */
	--color-border: #374151; /* Темно-серый */
	--color-text-muted: #9ca3af; /* Серый */
	--font-primary: 'Manrope', sans-serif;
	--font-secondary: 'Space Grotesk', sans-serif;
	--container-width: 1140px;
	--container-padding: 1rem;
	--header-height: 70px;
}

/* === GLOBAL RESET & STYLES === */
*,
*::before,
*::after {
	box-sizing: border-box;
	margin: 0;
	padding: 0;
}

html {
	scroll-behavior: smooth;
}

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

.main {
	flex-grow: 1;
}

ul {
	list-style: none;
}

a {
	text-decoration: none;
	color: inherit;
	transition: color 0.3s ease;
}

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

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

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

/* === HEADER === */
.header {
	background-color: var(--color-background);
	border-bottom: 1px solid var(--color-border);
	position: sticky;
	top: 0;
	z-index: 100;
	height: var(--header-height);
}

.header__container {
	display: flex;
	justify-content: space-between;
	align-items: center;
	height: 100%;
}

.logo {
	display: inline-flex;
	align-items: center;
	gap: 0.75rem;
	font-family: var(--font-secondary);
	font-weight: 500;
	font-size: 1.25rem;
}

.header__nav {
	display: none; /* Скрыто на мобильных */
}

.header__nav-list {
	display: flex;
	gap: 1.5rem;
}

.header__nav-link {
	font-size: 1rem;
	padding: 0.5rem 0;
	position: relative;
	color: var(--color-text-muted);
}

.header__nav-link:hover {
	color: var(--color-text);
}

.header__nav-link::after {
	content: '';
	position: absolute;
	bottom: 0;
	left: 0;
	width: 0;
	height: 2px;
	background-color: var(--color-primary);
	transition: width 0.3s ease;
}

.header__nav-link:hover::after {
	width: 100%;
}

.header__burger {
	background: none;
	border: none;
	color: var(--color-text);
	cursor: pointer;
	z-index: 101;
}

/* Стили для открытого мобильного меню */
.header__nav--mobile {
	display: flex;
	flex-direction: column;
	justify-content: center;
	align-items: center;
	position: fixed;
	top: 0;
	left: 0;
	width: 100%;
	height: 100%;
	background-color: var(--color-background);
	transform: translateX(100%);
	transition: transform 0.3s ease-in-out;
}

.header__nav--mobile.active {
	transform: translateX(0);
}

.header__nav--mobile .header__nav-list {
	flex-direction: column;
	align-items: center;
	gap: 2rem;
}

.header__nav--mobile .header__nav-link {
	font-size: 1.5rem;
}

/* === FOOTER === */
.footer {
	background-color: var(--color-background);
	border-top: 1px solid var(--color-border);
	padding: 3rem 0;
	margin-top: auto;
}

.footer__container {
	display: grid;
	grid-template-columns: 1fr;
	gap: 2.5rem;
}

.footer__column .logo {
	margin-bottom: 1rem;
}

.footer__copyright {
	font-size: 0.875rem;
	color: var(--color-text-muted);
}

.footer__title {
	font-size: 1rem;
	font-weight: 500;
	margin-bottom: 1rem;
	text-transform: uppercase;
	letter-spacing: 0.05em;
	color: var(--color-text-muted);
}

.footer__list {
	display: flex;
	flex-direction: column;
	gap: 0.75rem;
}

.footer__link {
	font-size: 0.9375rem;
	color: var(--color-text);
}

.footer__link:hover {
	color: var(--color-primary);
}

.footer__list--contacts .footer__link {
	display: inline-block; /* Для корректной работы hover */
}

/* === MEDIA QUERIES (TABLET & DESKTOP) === */
@media (min-width: 768px) {
	.header__burger {
		display: none;
	}

	.header__nav {
		display: block;
	}

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

@media (min-width: 1024px) {
	.footer__container {
		grid-template-columns: 2fr 1fr 1fr 1.5fr;
		gap: 3rem;
	}
}

/* === HERO SECTION === */
.hero {
	padding: 4rem 0;
	text-align: center;
}

.hero__container {
	display: flex;
	flex-direction: column;
	align-items: center;
	gap: 3rem;
}

.hero__content {
	max-width: 650px;
}

.hero__title {
	font-size: 1.5rem;
	line-height: 1.3;
	margin-bottom: 1rem;
}

.hero__title--animated {
	color: var(--color-primary);
	border-right: 3px solid var(--color-primary);
	animation: blink 0.75s step-end infinite;
	min-height: 42px; /* Предотвращает "прыжок" текста */
	display: inline-block;
}

.hero__subtitle {
	font-size: 1.125rem;
	color: var(--color-text-muted);
	margin-bottom: 2rem;
}

.button {
	display: inline-block;
	background-color: var(--color-primary);
	color: var(--color-text);
	padding: 0.875rem 2rem;
	border-radius: 6px;
	font-family: var(--font-secondary);
	font-weight: 500;
	transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.button:hover {
	transform: translateY(-3px);
	box-shadow: 0 10px 20px rgba(79, 70, 229, 0.25);
}

.hero__visual {
	width: 100%;
}

.hero__image {
	border-radius: 8px;
	border: 1px solid var(--color-border);
}

/* Анимация курсора */
@keyframes blink {
	from,
	to {
		border-color: transparent;
	}
	50% {
		border-color: var(--color-primary);
	}
}

/* === MEDIA QUERIES (TABLET & DESKTOP) === */
@media (min-width: 768px) {
	.hero {
		padding: 6rem 0;
		text-align: left;
	}

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

	.hero__content {
		flex: 1;
		margin-right: 2rem;
	}

	.hero__title {
		font-size: 2rem;
	}

	.hero__visual {
		flex: 0 0 45%;
	}
}

@media (min-width: 1024px) {
	.hero__title {
		font-size: 2.5rem;
	}

	.hero__title--animated {
		min-height: 58px;
	}
}

/* === PLATFORMS SECTION === */
.platforms {
	padding: 4rem 0;
	background-color: rgba(
		255,
		255,
		255,
		0.02
	); /* Легкий оттенок для выделения секции */
	border-top: 1px solid var(--color-border);
	border-bottom: 1px solid var(--color-border);
}

.platforms__container {
	text-align: center;
}

.platforms__title {
	font-size: 1.875rem;
	margin-bottom: 0.5rem;
}

.platforms__subtitle {
	font-size: 1.125rem;
	color: var(--color-text-muted);
	max-width: 700px;
	margin: 0 auto 3rem auto;
}

.platforms__grid {
	display: grid;
	grid-template-columns: 1fr;
	gap: 1.5rem;
}

.platform-card {
	background-color: var(--color-background);
	border: 1px solid var(--color-border);
	border-radius: 8px;
	padding: 2rem;
	text-align: left;
	transition: transform 0.3s ease, border-color 0.3s ease;
}

.platform-card:hover {
	transform: translateY(-5px);
	border-color: var(--color-primary);
}

.platform-card__icon {
	color: var(--color-primary);
	margin-bottom: 1rem;
}

.platform-card__icon i {
	width: 32px;
	height: 32px;
}

.platform-card__title {
	font-size: 1.25rem;
	margin-bottom: 0.5rem;
}

.platform-card__description {
	font-size: 0.9375rem;
	color: var(--color-text-muted);
	line-height: 1.7;
}

/* === MEDIA QUERIES (TABLET & DESKTOP) === */
@media (min-width: 768px) {
	.platforms {
		padding: 6rem 0;
	}

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

@media (min-width: 1024px) {
	.platforms__grid {
		grid-template-columns: repeat(3, 1fr);
	}

	.platforms__title {
		font-size: 2.25rem;
	}
}

/* === INTEGRATION SECTION === */
.integration {
	padding: 4rem 0;
}

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

.integration__content {
	max-width: 500px;
}

.integration__title {
	font-size: 1.875rem;
	margin-bottom: 1rem;
}

.integration__description {
	color: var(--color-text-muted);
	line-height: 1.7;
	margin-bottom: 1rem;
}

.integration__list {
	display: flex;
	flex-direction: column;
	gap: 1.5rem;
}

.integration-item {
	display: flex;
	align-items: flex-start;
	gap: 1.5rem;
	background-color: rgba(255, 255, 255, 0.02);
	padding: 1.5rem;
	border: 1px solid var(--color-border);
	border-radius: 8px;
}

.integration-item__icon {
	flex-shrink: 0;
	color: var(--color-primary);
	background-color: rgba(79, 70, 229, 0.1);
	width: 48px;
	height: 48px;
	border-radius: 50%;
	display: flex;
	align-items: center;
	justify-content: center;
}

.integration-item__icon i {
	width: 24px;
	height: 24px;
}

.integration-item__title {
	font-size: 1.125rem;
	margin-bottom: 0.25rem;
}

.integration-item__desc {
	color: var(--color-text-muted);
	font-size: 0.9375rem;
}

/* === MEDIA QUERIES (TABLET & DESKTOP) === */
@media (min-width: 768px) {
	.integration {
		padding: 6rem 0;
	}

	.integration__container {
		flex-direction: row;
		align-items: center;
		gap: 4rem;
	}

	.integration__content {
		flex: 1;
	}

	.integration__list {
		flex: 1;
	}
}

@media (min-width: 1024px) {
	.integration__title {
		font-size: 2.25rem;
	}
}

/* === AI MODELS SECTION === */
.ai-models {
	padding: 4rem 0;
	background-color: rgba(255, 255, 255, 0.02);
	border-top: 1px solid var(--color-border);
	border-bottom: 1px solid var(--color-border);
}

.ai-models__header {
	text-align: center;
	max-width: 700px;
	margin: 0 auto 3rem auto;
}

.ai-models__title {
	font-size: 1.875rem;
	margin-bottom: 0.5rem;
}

.ai-models__subtitle {
	font-size: 1.125rem;
	color: var(--color-text-muted);
}

.ai-models__tabs {
	display: flex;
	justify-content: center;
	gap: 0.5rem;
	margin-bottom: 2rem;
}

.ai-models__tab {
	font-family: var(--font-secondary);
	font-size: 1rem;
	padding: 0.75rem 1.5rem;
	border-radius: 6px;
	border: 1px solid var(--color-border);
	background-color: transparent;
	color: var(--color-text-muted);
	cursor: pointer;
	transition: background-color 0.3s ease, color 0.3s ease;
}

.ai-models__tab:hover {
	background-color: var(--color-border);
	color: var(--color-text);
}

.ai-models__tab.active {
	background-color: var(--color-primary);
	color: var(--color-text);
	border-color: var(--color-primary);
}

.ai-models__content-wrapper {
	background-color: var(--color-background);
	border: 1px solid var(--color-border);
	border-radius: 8px;
	padding: 2rem;
}

.ai-models__content {
	display: none; /* Скрываем по умолчанию */
	flex-direction: column;
	gap: 2rem;
}

.ai-models__content.active {
	display: flex; /* Показываем активный таб */
}

.ai-models__content-title {
	font-size: 1.5rem;
	margin-bottom: 1rem;
}

.ai-models__feature-list {
	display: flex;
	flex-direction: column;
	gap: 0.75rem;
	margin-top: 1.5rem;
}

.ai-models__feature-list li {
	display: flex;
	align-items: center;
	gap: 0.75rem;
}

.ai-models__feature-list i {
	color: var(--color-primary);
	width: 20px;
	height: 20px;
}

.ai-models__content-visual img {
	border-radius: 8px;
}

/* === MEDIA QUERIES (TABLET & DESKTOP) === */
@media (min-width: 768px) {
	.ai-models {
		padding: 6rem 0;
	}

	.ai-models__title {
		font-size: 2.25rem;
	}

	.ai-models__content-wrapper {
		padding: 3rem;
	}

	.ai-models__content {
		flex-direction: row;
		align-items: center;
		gap: 3rem;
	}

	.ai-models__content-text,
	.ai-models__content-visual {
		flex: 1;
	}
}

/* === CASES SECTION (ACCORDION) === */
.cases {
    padding: 4rem 0;
}

.cases__header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 3rem auto;
}

.cases__title {
    font-size: 1.875rem;
    margin-bottom: 0.5rem;
}

.cases__subtitle {
    font-size: 1.125rem;
    color: var(--color-text-muted);
}

.accordion {
    max-width: 800px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.accordion__item {
    background-color: var(--color-background);
    border: 1px solid var(--color-border);
    border-radius: 8px;
    overflow: hidden;
}

.accordion__header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
    padding: 1.5rem;
    background-color: transparent;
    border: none;
    color: var(--color-text);
    font-family: var(--font-secondary);
    font-size: 1.125rem;
    cursor: pointer;
    text-align: left;
}

.accordion__icon {
    flex-shrink: 0;
    transition: transform 0.3s ease;
}

.accordion__header.active .accordion__icon {
    transform: rotate(180deg);
}

.accordion__content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease-out;
}

.accordion__body {
    padding: 0 1.5rem 1.5rem 1.5rem;
    border-top: 1px solid var(--color-border);
}

.case-study {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    padding-top: 1.5rem;
}

.case-study__title {
    color: var(--color-text-muted);
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.5rem;
}

.case-study__part p {
    line-height: 1.7;
}

/* === MEDIA QUERIES (TABLET & DESKTOP) === */
@media (min-width: 768px) {
    .cases {
        padding: 6rem 0;
    }
    .cases__title {
        font-size: 2.25rem;
    }
    .case-study {
        flex-direction: row;
        gap: 2rem;
    }
    .case-study__part {
        flex: 1;
    }
}

/* === CONTACT SECTION === */
.contact {
    padding: 4rem 0;
}

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

.contact__title {
    font-size: 1.875rem;
    margin-bottom: 1rem;
}

.contact__subtitle {
    color: var(--color-text-muted);
    margin-bottom: 2rem;
}

.contact__details {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.contact__detail-item {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    color: var(--color-text-muted);
}
.contact__detail-item:hover {
    color: var(--color-primary);
}

.contact-form__group {
    position: relative;
    margin-bottom: 1.5rem;
}

.contact-form__input {
    width: 100%;
    padding: 0.75rem;
    background-color: var(--color-background);
    border: 1px solid var(--color-border);
    border-radius: 6px;
    color: var(--color-text);
    font-size: 1rem;
    font-family: var(--font-primary);
    transition: border-color 0.3s ease;
}

.contact-form__input:focus {
    outline: none;
    border-color: var(--color-primary);
}

.contact-form__label {
    position: absolute;
    top: 0.75rem;
    left: 0.75rem;
    color: var(--color-text-muted);
    pointer-events: none;
    transition: all 0.2s ease;
}

.contact-form__input:focus ~ .contact-form__label,
.contact-form__input:not(:placeholder-shown) ~ .contact-form__label {
    top: -0.6rem;
    left: 0.5rem;
    font-size: 0.75rem;
    background-color: var(--color-background);
    padding: 0 0.25rem;
    color: var(--color-primary);
}

.contact-form__group--checkbox {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    margin-bottom: 1.5rem;
}

.contact-form__checkbox-input {
    margin-top: 0.25rem;
}

.contact-form__checkbox-label {
    font-size: 0.875rem;
    color: var(--color-text-muted);
}

.contact-form__checkbox-label a {
    color: var(--color-primary);
    text-decoration: underline;
}

.contact-form__button {
    width: 100%;
}
.contact-form__button:disabled {
    opacity: 0.7;
    cursor: wait;
}

.success-message {
    display: none; /* Скрыто по умолчанию */
    text-align: center;
    padding: 2rem;
    border: 1px solid var(--color-border);
    border-radius: 8px;
}

.success-message__icon {
    width: 56px;
    height: 56px;
    background-color: rgba(79, 70, 229, 0.1);
    color: var(--color-primary);
    border-radius: 50%;
    margin: 0 auto 1rem auto;
    display: flex;
    align-items: center;
    justify-content: center;
}

.success-message__title {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.success-message__text {
    color: var(--color-text-muted);
}


/* === MEDIA QUERIES (TABLET & DESKTOP) === */
@media (min-width: 992px) {
    .contact {
        padding: 6rem 0;
    }
    .contact__container {
        flex-direction: row;
        align-items: center;
        gap: 4rem;
    }
    .contact__info, .contact__form-wrapper {
        flex: 1;
    }
    .contact__title {
        font-size: 2.25rem;
    }
}

/* === COOKIE POP-UP === */
.cookie-popup {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background-color: var(--color-background);
    border-top: 1px solid var(--color-border);
    padding: 1rem;
    z-index: 200;
    transform: translateY(200%);
    transition: transform 0.5s ease-in-out;
}

.cookie-popup.active {
    transform: translateY(0);
}

.cookie-popup__content {
    max-width: var(--container-width);
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
    text-align: center;
}

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

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

.cookie-popup__button {
    background-color: var(--color-primary);
    color: var(--color-text);
    padding: 0.5rem 1.5rem;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-size: 0.875rem;
    font-family: var(--font-secondary);
}

@media (min-width: 768px) {
    .cookie-popup__content {
        flex-direction: row;
        justify-content: space-between;
    }
}


/* === STYLES FOR POLICY PAGES === */
.pages {
    padding: 3rem 0;
}

.pages .container {
    max-width: 800px; /* Для кращої читабельності тексту */
}

.pages h1, .pages h2 {
    margin-bottom: 1rem;
    line-height: 1.3;
}

.pages h1 {
    font-size: 1.5rem;
    margin-bottom: 2rem;
}

.pages h2 {
    font-size: 1.5rem;
    margin-top: 2.5rem;
}

.pages p, .pages ul {
    margin-bottom: 1.5rem;
    line-height: 1.8;
    color: var(--color-text-muted);
}

.pages ul {
    padding-left: 1.5rem;
    list-style-type: disc;
}

.pages li {
    margin-bottom: 0.75rem;
}

.pages a {
    color: var(--color-primary);
    text-decoration: underline;
    transition: color 0.3s ease;
}

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

.pages strong {
    color: var(--color-text);
    font-weight: 700;
}


@media (min-width: 768px) {
    .pages {
        padding: 5rem 0;
    }
}