/* GOOGLE FONTS */
@import url('https://fonts.googleapis.com/css2?family=Exo+2:wght@600;700&family=Roboto:wght@400;500&display=swap');

/* CSS VARIABLES */
:root {
	--header-height: 4.5rem;

	/* Colors */
	--clr-bg: #0d1117;
	--clr-bg-light: #161b22;
	--clr-primary: #2f81f7;
	--clr-primary-hover: #58a6ff;
	--clr-text: #e6edf3;
	--clr-text-muted: #8b949e;
	--clr-border: #30363d;

	/* Fonts */
	--font-body: 'Roboto', sans-serif;
	--font-heading: 'Exo 2', sans-serif;

	--fs-base: 1rem; /* 16px */
	--fs-lg: 1.125rem;
	--fs-xl: 1.25rem;
	--fs-h1: 2.25rem;
	--fs-h2: 1.75rem;
	--fs-h3: 1.25rem;

	/* Other */
	--border-radius: 0.5rem;
	--transition-duration: 0.3s;
	--container-width: 1140px;
	--container-padding: 1rem;
}

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

html {
	scroll-behavior: smooth;
}

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

h1,
h2,
h3 {
	font-family: var(--font-heading);
	font-weight: 700;
	color: var(--clr-text);
	line-height: 1.2;
}

ul {
	list-style: none;
}

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

a:hover {
	color: var(--clr-primary-hover);
}

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

/* GLOBAL CLASSES */
.container {
	max-width: var(--container-width);
	margin-left: auto;
	margin-right: auto;
	padding-left: var(--container-padding);
	padding-right: var(--container-padding);
}

/* HEADER */
.header {
	position: fixed;
	top: 0;
	left: 0;
	width: 100%;
	background-color: rgba(13, 17, 23, 0.8);
	backdrop-filter: blur(10px);
	z-index: 100;
	border-bottom: 1px solid var(--clr-border);
}

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

.logo {
	display: inline-flex;
	align-items: center;
	gap: 0.75rem;
	font-family: var(--font-heading);
	font-size: var(--fs-xl);
	font-weight: 700;
	color: var(--clr-text);
}

.header__nav {
	display: block;
}

.header__nav-list {
	display: flex;
	gap: 2rem;
}

.header__nav-link {
	color: var(--clr-text-muted);
	font-weight: 500;
	position: relative;
	padding: 0.5rem 0;
}

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

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

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

.header__burger-btn {
	display: none;
	background: none;
	border: none;
	color: var(--clr-text);
	cursor: pointer;
}

/* FOOTER */
.footer {
	background-color: var(--clr-bg-light);
	border-top: 1px solid var(--clr-border);
	padding: 4rem 0 2rem;
	color: var(--clr-text-muted);
}

.footer__container {
	display: grid;
	grid-template-columns: 2fr 1fr 1fr 2fr;
	gap: 2.5rem;
}

.footer__column--about {
	padding-right: 2rem;
}

.footer__description {
	margin-top: 1rem;
	font-size: 0.9rem;
}

.footer__heading {
	font-size: var(--fs-lg);
	margin-bottom: 1rem;
	color: var(--clr-text);
}

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

.footer__list--contacts {
	gap: 1rem;
}

.footer__list--contacts li {
	display: flex;
	align-items: flex-start;
	gap: 0.75rem;
}

.footer__icon {
	width: 18px;
	height: 18px;
	flex-shrink: 0;
	margin-top: 2px;
}

.footer__link {
	color: var(--clr-text-muted);
}

.footer__bottom {
	text-align: center;
	margin-top: 4rem;
	padding-top: 2rem;
	border-top: 1px solid var(--clr-border);
	font-size: 0.9rem;
}

/* RESPONSIVE DESIGN */
@media screen and (max-width: 992px) {
	.footer__container {
		grid-template-columns: repeat(2, 1fr);
	}
}

@media screen and (max-width: 768px) {
	:root {
		--fs-h1: 1.75rem;
		--fs-h2: 1.375rem;
	}

	.header__nav {
		position: fixed;
		top: var(--header-height);
		right: -100%;
		width: 70%;
		height: calc(100vh - var(--header-height));
		background-color: var(--clr-bg-light);
		padding: 2rem;
		transition: right var(--transition-duration) ease-in-out;
	}

	.header__nav.is-active {
		right: 0;
	}

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

	.header__nav-link {
		font-size: var(--fs-lg);
	}

	.header__burger-btn {
		display: block;
	}
}

@media screen and (max-width: 576px) {
	.footer__container {
		grid-template-columns: 1fr;
		text-align: center;
	}
	.footer__column--about {
		padding-right: 0;
	}
	.footer__list--contacts li {
		justify-content: center;
	}
	.logo {
		justify-content: center;
	}
}

/*=============== BUTTONS ===============*/
.btn {
	display: inline-block;
	background-color: var(--clr-primary);
	color: var(--clr-text);
	padding: 0.9rem 2.5rem;
	border-radius: var(--border-radius);
	font-family: var(--font-heading);
	font-weight: 600;
	font-size: var(--fs-lg);
	transition: background-color var(--transition-duration),
		transform var(--transition-duration);
	border: 2px solid transparent;
}

.btn:hover {
	background-color: var(--clr-primary-hover);
	color: var(--clr-text);
	transform: translateY(-3px);
}

/*=============== HERO SECTION ===============*/
.hero {
	position: relative;
	height: 100vh;
	min-height: 600px;
	display: flex;
	align-items: center;
	justify-content: center;
	text-align: center;
	overflow: hidden;
	padding-top: var(--header-height); /* Offset for fixed header */
}

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

.hero__container {
	position: relative;
	z-index: 2;
	display: flex;
	flex-direction: column;
	align-items: center;
}

.hero__title {
	font-size: var(--fs-h1);
	font-weight: 700;
	max-width: 800px;
	margin-bottom: 1.5rem;
}

.hero__description {
	font-size: var(--fs-lg);
	max-width: 650px;
	color: var(--clr-text-muted);
	margin-bottom: 2.5rem;
}

/* Responsive adjustments for Hero */
@media screen and (max-width: 768px) {
	.hero {
		min-height: 700px;
	}

	.hero__title {
		font-size: 2rem; /* Adjusted h1 size for mobile */
	}

	.hero__description {
		font-size: 1rem; /* Adjusted p size for mobile */
	}
}

/*=============== SECTION STYLES ===============*/
.section {
	padding: 6rem 0 2rem;
	overflow: hidden; /* For animations */
}

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

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

.section__subtitle {
	display: block;
	color: var(--clr-primary);
	font-family: var(--font-heading);
	font-weight: 600;
	margin-bottom: 0.5rem;
}

.section__title {
	font-size: var(--fs-h2);
	margin-bottom: 1rem;
}

.section__description {
	color: var(--clr-text-muted);
	font-size: var(--fs-lg);
}

/*=============== BASICS SECTION ===============*/
.basics {
	background-color: var(--clr-bg-light);
}

.basics__grid {
	display: grid;
	grid-template-columns: repeat(3, 1fr);
	gap: 2rem;
}

.basics__card {
	background-color: var(--clr-bg);
	border: 1px solid var(--clr-border);
	border-radius: var(--border-radius);
	padding: 2.5rem 2rem;
	text-align: center;
	transition: transform var(--transition-duration),
		box-shadow var(--transition-duration);

	/* Animation preparation */
	opacity: 0;
	transform: translateY(30px);
	transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

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

.basics__card:hover {
	transform: translateY(-8px);
	box-shadow: 0 10px 30px -10px rgba(47, 129, 247, 0.2);
}

.basics__card-icon {
	width: 60px;
	height: 60px;
	margin: 0 auto 1.5rem;
	background-color: var(--clr-bg-light);
	border-radius: 50%;
	display: flex;
	align-items: center;
	justify-content: center;
	color: var(--clr-primary);
}

.basics__card-icon i {
	width: 28px;
	height: 28px;
}

.basics__card-title {
	font-size: var(--fs-h3);
	margin-bottom: 0.75rem;
}

.basics__card-text {
	color: var(--clr-text-muted);
}

/* Delay for staggered animation */
.basics__card:nth-child(2).is-visible {
	transition-delay: 0.2s;
}
.basics__card:nth-child(3).is-visible {
	transition-delay: 0.4s;
}

/* Responsive adjustments for Basics */
@media screen and (max-width: 992px) {
	.basics__grid {
		grid-template-columns: repeat(1, 1fr);
	}
}

/*=============== AI INTEGRATIONS SECTION ===============*/
.ai-integrations {
	/* Animation preparation */
	opacity: 0;
	transform: translateY(30px);
	transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}
.ai-integrations.is-visible {
	opacity: 1;
	transform: translateY(0);
}

.ai-integrations__content {
	display: grid;
	grid-template-columns: 1fr 1.5fr;
	gap: 3rem;
	align-items: flex-start;
}

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

.ai-integrations__tab {
	display: flex;
	align-items: center;
	gap: 1.5rem;
	padding: 1.5rem;
	border-radius: var(--border-radius);
	border: 1px solid var(--clr-border);
	cursor: pointer;
	transition: background-color var(--transition-duration),
		border-color var(--transition-duration);
}

.ai-integrations__tab:hover {
	background-color: var(--clr-bg-light);
}

.ai-integrations__tab.is-active {
	background-color: var(--clr-bg-light);
	border-color: var(--clr-primary);
}

.ai-integrations__tab-icon {
	flex-shrink: 0;
	width: 50px;
	height: 50px;
	display: flex;
	align-items: center;
	justify-content: center;
	background-color: var(--clr-bg);
	border-radius: 50%;
	color: var(--clr-primary);
}

.ai-integrations__tab-icon i {
	width: 24px;
	height: 24px;
}

.ai-integrations__tab-title {
	font-size: var(--fs-lg);
	font-family: var(--font-body);
	font-weight: 500;
	margin-bottom: 0.25rem;
	color: var(--clr-text);
}

.ai-integrations__tab-desc {
	font-size: 0.9rem;
	color: var(--clr-text-muted);
}

.ai-integrations__panels {
	position: relative;
	background-color: var(--clr-bg-light);
	border: 1px solid var(--clr-border);
	border-radius: var(--border-radius);
	overflow: hidden;
}

.ai-integrations__panel {
	display: none;
	flex-direction: column;
	animation: fadeIn 0.5s ease;
}

.ai-integrations__panel.is-active {
	display: flex;
}

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

.ai-integrations__panel-img {
	width: 100%;
	height: 300px;
	object-fit: cover;
}

.ai-integrations__panel-text {
	padding: 2rem;
}

.ai-integrations__panel-text h4 {
	font-size: var(--fs-h3);
	font-family: var(--font-heading);
	margin-bottom: 1rem;
}

.ai-integrations__panel-text p {
	color: var(--clr-text-muted);
}

/* Responsive adjustments for AI Integrations */
@media screen and (max-width: 992px) {
	.ai-integrations__content {
		grid-template-columns: 1fr;
	}
}

@media screen and (max-width: 576px) {
	.ai-integrations__tab {
		flex-direction: column;
		text-align: center;
		gap: 1rem;
		padding: 1.5rem 1rem;
	}
}

/*=============== PLATFORMS SECTION ===============*/
.platforms {
	background-color: var(--clr-bg-light);
}

.platforms__grid {
	display: grid;
	grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
	gap: 1.5rem;
}

.platforms__item {
	background-color: var(--clr-bg);
	border: 1px solid var(--clr-border);
	border-radius: var(--border-radius);
	padding: 2rem 1rem;
	display: flex;
	flex-direction: column;
	align-items: center;
	justify-content: center;
	gap: 1rem;
	color: var(--clr-text-muted);
	font-weight: 500;
	transition: transform var(--transition-duration),
		box-shadow var(--transition-duration), color var(--transition-duration);

	/* Animation preparation */
	opacity: 0;
	transform: translateY(30px);
	transition: opacity 0.5s ease-out, transform 0.5s ease-out;
}

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

.platforms__item:hover {
	transform: translateY(-5px);
	color: var(--clr-primary);
	box-shadow: 0 8px 25px -8px rgba(47, 129, 247, 0.2);
}

.platforms__item i {
	width: 40px;
	height: 40px;
}

/* Staggered animation delays for grid items */
.platforms__item:nth-child(2).is-visible {
	transition-delay: 0.1s;
}
.platforms__item:nth-child(3).is-visible {
	transition-delay: 0.2s;
}
.platforms__item:nth-child(4).is-visible {
	transition-delay: 0.3s;
}
.platforms__item:nth-child(5).is-visible {
	transition-delay: 0.4s;
}
.platforms__item:nth-child(6).is-visible {
	transition-delay: 0.5s;
}

@media screen and (max-width: 576px) {
	.platforms__grid {
		grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
	}
}

/*=============== CASES SECTION ===============*/
.cases__grid {
	display: grid;
	grid-template-columns: repeat(2, 1fr);
	gap: 2rem;
}

.cases__card {
	background-color: var(--clr-bg-light);
	border: 1px solid var(--clr-border);
	border-radius: var(--border-radius);
	display: flex;
	flex-direction: column;
	overflow: hidden;

	/* Animation preparation */
	opacity: 0;
	transform: translateY(30px);
	transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

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

.cases__card:nth-child(2).is-visible {
	transition-delay: 0.2s;
}

.cases__card-header {
	display: flex;
	align-items: center;
	gap: 1rem;
	padding: 2rem 2rem 1.5rem;
}

.cases__card-img {
	width: 60px;
	height: 60px;
	border-radius: 50%;
	object-fit: cover;
	border: 2px solid var(--clr-border);
}

.cases__card-title {
	font-size: var(--fs-h3);
	margin-bottom: 0.25rem;
}

.cases__card-domain {
	font-size: 0.9rem;
	color: var(--clr-text-muted);
}

.cases__card-body {
	padding: 0 2rem 1.5rem;
	flex-grow: 1;
	color: var(--clr-text-muted);
}

.cases__card-body p {
	margin-bottom: 1rem;
}
.cases__card-body p:last-child {
	margin-bottom: 0;
}

.cases__card-footer {
	background-color: var(--clr-bg);
	padding: 1.5rem 2rem;
	margin-top: auto;
	display: flex;
	align-items: center;
	gap: 1.5rem;
	border-top: 1px solid var(--clr-border);
}

.cases__card-result {
	font-size: 2.5rem;
	font-family: var(--font-heading);
	font-weight: 700;
	color: var(--clr-primary);
	line-height: 1;
}

.cases__card-footer p {
	font-size: 0.9rem;
	color: var(--clr-text-muted);
	line-height: 1.3;
}

@media screen and (max-width: 992px) {
	.cases__grid {
		grid-template-columns: 1fr;
	}
}

/*=============== CONTACT SECTION ===============*/
.contact {
	/* Animation preparation */
	opacity: 0;
	transform: translateY(30px);
	transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}
.contact.is-visible {
	opacity: 1;
	transform: translateY(0);
}

.contact__grid {
	display: grid;
	grid-template-columns: 1fr 1fr;
	gap: 4rem;
	align-items: center;
}

.contact__form-wrapper {
	position: relative;
	background-color: var(--clr-bg-light);
	border: 1px solid var(--clr-border);
	border-radius: var(--border-radius);
	padding: 2.5rem;
}

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

.contact__form-group {
	display: flex;
	flex-direction: column;
}

.contact__form-label {
	margin-bottom: 0.5rem;
	color: var(--clr-text-muted);
	font-size: 0.9rem;
}

.contact__form-input {
	width: 100%;
	padding: 0.9rem 1rem;
	background-color: var(--clr-bg);
	border: 1px solid var(--clr-border);
	border-radius: var(--border-radius);
	color: var(--clr-text);
	font-size: 1rem;
	font-family: var(--font-body);
	transition: border-color var(--transition-duration),
		box-shadow var(--transition-duration);
}

.contact__form-input:focus {
	outline: none;
	border-color: var(--clr-primary);
	box-shadow: 0 0 0 3px rgba(47, 129, 247, 0.2);
}

.contact__form-group--checkbox {
	display: flex;
	align-items: center;
	gap: 0.75rem;
	margin-top: -0.5rem;
}

.contact__form-checkbox {
	width: 1.15em;
	height: 1.15em;
	accent-color: var(--clr-primary);
}

.contact__form-checkbox-label {
	font-size: 0.9rem;
	color: var(--clr-text-muted);
}

.contact__form-checkbox-label a {
	text-decoration: underline;
}

.contact__form-btn {
	width: 100%;
	justify-content: center;
	margin-top: 1rem;
}

.contact__success-message {
	position: absolute;
	top: 0;
	left: 0;
	width: 100%;
	height: 100%;
	background-color: var(--clr-bg-light);
	display: flex;
	flex-direction: column;
	align-items: center;
	justify-content: center;
	text-align: center;
	padding: 2rem;
	border-radius: var(--border-radius);

	opacity: 0;
	visibility: hidden;
	transform: scale(0.95);
	transition: opacity 0.3s ease, visibility 0.3s ease, transform 0.3s ease;
}

.contact__success-message.is-visible {
	opacity: 1;
	visibility: visible;
	transform: scale(1);
}

.contact__success-message i {
	width: 50px;
	height: 50px;
	color: var(--clr-primary);
	margin-bottom: 1rem;
}

.contact__success-message span {
	font-size: var(--fs-lg);
	color: var(--clr-text);
	max-width: 300px;
}

@media screen and (max-width: 992px) {
	.contact__grid {
		grid-template-columns: 1fr;
		gap: 3rem;
	}
	.contact__info {
		text-align: center;
	}
}

/*=============== COOKIE POPUP ===============*/
.cookie-popup {
	position: fixed;
	bottom: 1.5rem;
	left: 1.5rem;
	right: 1.5rem;
	max-width: 450px;
	background-color: var(--clr-bg-light);
	border: 1px solid var(--clr-border);
	border-radius: var(--border-radius);
	padding: 1.5rem;
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: 1.5rem;
	z-index: 101;

	transform: translateY(200%);
	opacity: 0;
	transition: transform 0.5s ease-in-out, opacity 0.5s ease-in-out;
}

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

.cookie-popup__text {
	font-size: 0.9rem;
	color: var(--clr-text-muted);
}

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

.cookie-popup__btn {
	flex-shrink: 0;
	background-color: var(--clr-primary);
	color: var(--clr-text);
	border: none;
	padding: 0.6rem 1.2rem;
	border-radius: var(--border-radius);
	cursor: pointer;
	font-family: var(--font-body);
	font-weight: 500;
	transition: background-color var(--transition-duration);
}

.cookie-popup__btn:hover {
	background-color: var(--clr-primary-hover);
}

@media screen and (max-width: 576px) {
	.cookie-popup {
		flex-direction: column;
		text-align: center;
		gap: 1rem;
		left: 1rem;
		right: 1rem;
	}
}

/*=============== POLICY & GENERIC PAGES ===============*/
.pages {
	padding: calc(var(--header-height) + 4rem) 0 4rem;
	background-color: var(--clr-bg-light);
}

.pages .container {
	max-width: 800px; /* Limit line length for readability */
}

.pages h1 {
	font-size: 1.5rem;
	margin-bottom: 2rem;
	border-bottom: 1px solid var(--clr-border);
	padding-bottom: 1rem;
}

.pages h2 {
	font-size: 1.5rem;

	margin: 2.5rem 0 1rem;
}

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

.pages ul {
	list-style-type: disc;
	padding-left: 1.5rem;
	color: var(--clr-text-muted);
}

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

.pages a {
	text-decoration: underline;
}

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