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

/* =========== CSS VARIABLES =========== */
:root {
	--header-height: 5rem;

	/* Colors */
	--bg-color: #0d1117;
	--secondary-bg-color: #161b22;
	--text-color: #e6edf3;
	--accent-color: #2f81f7;
	--accent-color-hover: #58a6ff;
	--border-color: #30363d;

	/* Typography */
	--body-font: 'Inter', sans-serif;
	--heading-font: 'Space Grotesk', 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;

	/* Z-index */
	--z-fixed: 100;
}

@media screen and (min-width: 992px) {
	:root {
		--h1-font-size: 4rem;
		--h2-font-size: 2.5rem;
		--h3-font-size: 1.5rem;
		--normal-font-size: 1.125rem;
	}
}

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

html {
	scroll-behavior: smooth;
}

body {
	font-family: var(--body-font);
	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(--heading-font);
	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: 1220px;
	margin: 0 auto;
	padding-left: 1.5rem;
	padding-right: 1.5rem;
}

.button {
	display: inline-block;
	background-color: var(--accent-color);
	color: #fff;
	padding: 0.8rem 1.75rem;
	border-radius: 0.5rem;
	font-weight: 500;
	transition: background-color 0.3s;
}

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

/* =========== LOGO =========== */
.logo {
	display: inline-flex;
	align-items: center;
	gap: 0.5rem;
	font-family: var(--heading-font);
	font-weight: 700;
	font-size: 1.25rem;
	color: var(--text-color);
}

.logo__img {
	width: 28px;
	height: 28px;
}

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

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

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

/* Navigation for mobile devices */
@media screen and (max-width: 768px) {
	.header__nav {
		position: fixed;
		top: 0;
		right: -100%;
		width: 70%;
		height: 100vh;
		background-color: var(--secondary-bg-color);
		padding: 6rem 2rem 2rem;
		transition: right 0.4s;
		border-left: 1px solid var(--border-color);
	}

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

	.header__nav-item .button {
		width: 100%;
		text-align: center;
	}

	.header__burger-btn {
		position: relative;
		z-index: 999;
		display: block;
	}

	/* Show menu */
	.show-menu {
		right: 0;
	}
}

/* Navigation for desktop devices */
.header__nav-list {
	display: flex;
	align-items: center;
	gap: 2rem;
}

.header__nav-link {
	font-family: var(--heading-font);
	font-weight: 500;
	transition: color 0.3s;
}

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

/* =========== FOOTER =========== */
.footer {
	padding: 4rem 0 2rem;
	border-top: 1px solid var(--border-color);
}

.footer__container {
	display: grid;
	gap: 2.5rem;
	grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

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

.footer__copyright {
	font-size: var(--small-font-size);
	color: #8b949e;
}

.footer__title {
	font-size: var(--h3-font-size);
	margin-bottom: 1.5rem;
}

.footer__list {
	display: flex;
	flex-direction: column;
	gap: 0.8rem;
}

.footer__link {
	color: #8b949e;
	transition: color 0.3s;
}

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

.footer__list--contacts li {
	display: flex;
	align-items: flex-start;
	gap: 0.5rem;
	color: #8b949e;
}

.footer__icon {
	width: 18px;
	height: 18px;
	flex-shrink: 0;
	margin-top: 3px;
	color: var(--accent-color);
}

/* =========== HERO SECTION =========== */
.hero {
	padding-top: calc(var(--header-height) + 4rem);
	padding-bottom: 4rem;
}

.hero__container {
	display: grid;
	gap: 3rem;
	align-items: center;
}

@media screen and (min-width: 768px) {
	.hero__container {
		grid-template-columns: 1fr 1fr;
	}
}

.hero__data {
	text-align: center;
}

@media screen and (min-width: 768px) {
	.hero__data {
		text-align: left;
	}
}

.hero__title {
	font-size: var(--h2-font-size);
	line-height: 1.2;
	margin-bottom: 1.5rem;
}

/* Typing animation cursor */
.hero__title::after {
	content: '|';
	animation: blink 1s infinite;
	font-weight: 100;
}

@keyframes blink {
	0%,
	100% {
		opacity: 1;
	}
	50% {
		opacity: 0;
	}
}

.hero__description {
	font-size: var(--normal-font-size);
	color: #8b949e;
	margin-bottom: 2.5rem;
}

.hero__image-wrapper {
	display: flex;
	justify-content: center;
	align-items: center;
}

.hero__image {
	border-radius: 1rem;
	/* Можно добавить эффект свечения */
	box-shadow: 0 0 30px rgba(47, 129, 247, 0.2);
}

/* =========== FEATURES SECTION =========== */
.features {
	padding: 4rem 0;
	background-color: var(--secondary-bg-color);
}

.features__header {
	text-align: center;
	margin-bottom: 3rem;
}

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

.features__subtitle {
	max-width: 600px;
	margin: 0 auto;
	color: #8b949e;
}

.features__grid {
	display: grid;
	gap: 1.5rem;
}

@media screen and (min-width: 768px) {
	.features__grid {
		grid-template-columns: repeat(3, 1fr);
	}
}

.features__card {
	background-color: var(--bg-color);
	border: 1px solid var(--border-color);
	padding: 2rem;
	border-radius: 0.75rem;
	transition: transform 0.3s, box-shadow 0.3s;
}

.features__card:hover {
	transform: translateY(-5px);
	box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.features__card-icon {
	width: 48px;
	height: 48px;
	display: flex;
	align-items: center;
	justify-content: center;
	background-color: var(--accent-color);
	border-radius: 0.5rem;
	margin-bottom: 1.5rem;
}

.features__card-icon i {
	color: #fff;
	width: 28px;
	height: 28px;
}

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

.features__card-description {
	color: #8b949e;
	font-size: var(--small-font-size);
}

/* =========== TECHNOLOGIES SECTION =========== */
.tech {
	padding: 6rem 0;
}

.tech__container {
	display: grid;
	gap: 3rem;
	align-items: center;
}

@media screen and (min-width: 768px) {
	.tech__container {
		grid-template-columns: 1fr 1fr;
	}
}

.tech__image-wrapper {
	display: flex;
	justify-content: center;
	align-items: center;
}

.tech__image {
	width: 100%;
	height: auto;
	border-radius: 1rem;
}

.tech__title {
	font-size: var(--h2-font-size);
	margin-bottom: 1rem;
	line-height: 1.3;
}

.tech__description {
	color: #8b949e;
	margin-bottom: 2.5rem;
}

.tech__list {
	display: flex;
	flex-direction: column;
	gap: 2rem;
	margin-bottom: 2.5rem;
}

.tech__list-item {
	display: flex;
	align-items: flex-start;
	gap: 1rem;
}

.tech__list-icon {
	width: 24px;
	height: 24px;
	color: var(--accent-color);
	flex-shrink: 0;
	margin-top: 5px;
}

.tech__list-title {
	font-size: var(--h3-font-size);
	font-family: var(--body-font);
	font-weight: 500;
	margin-bottom: 0.25rem;
}

.tech__list-description {
	font-size: var(--small-font-size);
	color: #8b949e;
}

.tech__cta-link {
	color: var(--accent-color);
	font-weight: 500;
	display: inline-flex;
	align-items: center;
	gap: 0.5rem;
	transition: gap 0.3s;
}

.tech__cta-link:hover {
	gap: 0.75rem;
}

.tech__cta-link i {
	width: 20px;
	height: 20px;
}

/* =========== PROCESS SECTION =========== */
.process {
	padding: 6rem 0;
	background-color: var(--secondary-bg-color);
}

.process__header {
	text-align: center;
	margin-bottom: 4rem;
}

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

.process__subtitle {
	max-width: 600px;
	margin: 0 auto;
	color: #8b949e;
}

.process__timeline {
	display: grid;
	gap: 2rem;
	position: relative;
}

.process__step {
	background-color: var(--bg-color);
	border: 1px solid var(--border-color);
	padding: 2rem;
	border-radius: 0.75rem;
	position: relative;
}

.process__step-number {
	position: absolute;
	top: -1.5rem;
	left: 1.5rem;
	font-size: 3rem;
	font-weight: 700;
	font-family: var(--heading-font);
	color: rgba(47, 129, 247, 0.2);
	line-height: 1;
}

.process__step-title {
	font-size: var(--h3-font-size);
	margin-top: 1rem;
	margin-bottom: 0.75rem;
}

.process__step-description {
	font-size: var(--small-font-size);
	color: #8b949e;
}

/* Timeline line for desktop */
@media screen and (min-width: 992px) {
	.process__timeline {
		grid-template-columns: repeat(4, 1fr);
		gap: 0;
	}
	.process__step {
		margin: 0 1rem;
	}
	.process__timeline::before {
		content: '';
		position: absolute;
		top: 50%;
		left: 0;
		transform: translateY(-50%);
		width: 100%;
		height: 2px;
		background-color: var(--border-color);
		z-index: 0;
	}
	.process__step::after {
		content: '';
		position: absolute;
		top: 0;
		left: 50%;
		transform: translate(-50%, -50%);
		width: 16px;
		height: 16px;
		background-color: var(--bg-color);
		border: 3px solid var(--accent-color);
		border-radius: 50%;
		z-index: 1;
	}
}

/* =========== CASES SECTION =========== */
.cases {
	padding: 6rem 0;
}

.cases__header {
	text-align: center;
	margin-bottom: 4rem;
}

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

.cases__subtitle {
	max-width: 600px;
	margin: 0 auto;
	color: #8b949e;
}

.cases__grid {
	display: grid;
	gap: 2rem;
}

@media screen and (min-width: 768px) {
	.cases__grid {
		grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
	}
}

.cases__card {
	background-color: var(--secondary-bg-color);
	border: 1px solid var(--border-color);
	border-radius: 0.75rem;
	overflow: hidden;
	display: flex;
	flex-direction: column;
	transition: transform 0.3s, box-shadow 0.3s;
}

.cases__card:hover {
	transform: translateY(-5px);
	box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.cases__image-wrapper {
	position: relative;
}

.cases__image {
	width: 100%;
	height: 220px;
	object-fit: cover;
}

.cases__tag {
	position: absolute;
	top: 1rem;
	left: 1rem;
	background-color: var(--accent-color);
	color: #fff;
	padding: 0.25rem 0.75rem;
	border-radius: 0.5rem;
	font-size: var(--small-font-size);
	font-weight: 500;
}

.cases__data {
	padding: 1.5rem;
	display: flex;
	flex-direction: column;
	flex-grow: 1;
}

.cases__card-title {
	font-size: 1.15rem; /* Slightly smaller than h3 for balance */
	margin-bottom: 0.75rem;
}

.cases__card-description {
	color: #8b949e;
	font-size: var(--small-font-size);
	margin-bottom: 1.5rem;
	flex-grow: 1;
}

.cases__card-link {
	color: var(--accent-color);
	font-weight: 500;
	display: inline-flex;
	align-items: center;
	gap: 0.5rem;
	transition: gap 0.3s;
	margin-top: auto; /* Pushes link to the bottom */
}

.cases__card-link:hover {
	gap: 0.75rem;
}

.cases__card-link i {
	width: 18px;
	height: 18px;
}

/* =========== CONTACT SECTION =========== */
.contact {
	padding: 6rem 0;
	background-color: var(--secondary-bg-color);
}

.contact__container {
	display: grid;
	gap: 3rem;
}

@media screen and (min-width: 992px) {
	.contact__container {
		grid-template-columns: 1fr 1fr;
		align-items: center;
	}
}

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

.contact__description {
	color: #8b949e;
}

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

.contact__form-group {
	position: relative;
}

.contact__form-input {
	width: 100%;
	padding: 1rem;
	border: 1px solid var(--border-color);
	background-color: var(--bg-color);
	border-radius: 0.5rem;
	color: var(--text-color);
	font-size: var(--normal-font-size);
	outline: none;
	transition: border-color 0.3s;
}

.contact__form-input:focus {
	border-color: var(--accent-color);
}

.contact__form-label {
	position: absolute;
	top: 1rem;
	left: 1rem;
	color: #8b949e;
	pointer-events: none;
	transition: top 0.3s, font-size 0.3s, color 0.3s;
}

/* Floating label effect */
.contact__form-input:focus ~ .contact__form-label,
.contact__form-input:not(:placeholder-shown) ~ .contact__form-label {
	top: -0.75rem;
	left: 0.75rem;
	font-size: var(--small-font-size);
	color: var(--accent-color);
	background-color: var(--secondary-bg-color);
	padding: 0 0.25rem;
}

.contact__form-group--checkbox {
	display: flex;
	align-items: flex-start;
	gap: 0.75rem;
}

.contact__form-checkbox {
	margin-top: 5px;
	accent-color: var(--accent-color);
}

.contact__form-checkbox-label {
	font-size: var(--small-font-size);
	color: #8b949e;
}

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

.contact__form-button {
	width: 100%;
	border: none;
	cursor: pointer;
	font-size: var(--normal-font-size);
}

/* Success Message */
.contact__success-message {
	margin-top: 20px;
	border: 1px solid #3fb950;
	background-color: rgba(63, 185, 80, 0.1);
	color: #3fb950;
	padding: 2rem;
	border-radius: 0.75rem;
	text-align: center;
}

.contact__success-message i {
	width: 48px;
	height: 48px;
	margin-bottom: 1rem;
}

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

/* =========== COOKIE POPUP =========== */
.cookie-popup {
	position: fixed;
	bottom: 0;
	left: 0;
	width: 100%;
	background-color: var(--secondary-bg-color);
	border-top: 1px solid var(--border-color);
	padding: 1rem 0;
	z-index: calc(var(--z-fixed) + 10);
	transform: translateY(100%);
	transition: transform 0.4s ease-in-out;
}

.cookie-popup[hidden] {
	display: block; /* Overwrite default 'hidden' attribute for transition */
}

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

.cookie-popup__container {
	display: flex;
	flex-direction: column;
	justify-content: space-between;
	align-items: center;
	gap: 1rem;
}

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

.cookie-popup__text {
	font-size: var(--small-font-size);
	color: #8b949e;
	text-align: center;
}

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

.cookie-popup__button {
	padding: 0.6rem 1.5rem;
	flex-shrink: 0;
}

/* =========== STATIC PAGES (PRIVACY, TERMS, ETC.) =========== */
.pages {
	padding: calc(var(--header-height) + 4rem) 0 6rem;
}

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

.pages h1 {
	font-size: 1.5rem;
	margin-bottom: 2.5rem;
	border-bottom: 1px solid var(--border-color);
	padding-bottom: 1.5rem;
}

.pages h2 {
	font-size: 1.5rem;
	margin-top: 3rem;
	margin-bottom: 1.5rem;
}

.pages p {
	color: #8b949e;
	line-height: 1.8;
	margin-bottom: 1.5rem;
}

.pages ul {
	color: #8b949e;
	list-style-type: disc;
	padding-left: 1.5rem;
	margin-bottom: 1.5rem;
}

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

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

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

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