/* =========== GLOBAL STYLES =========== */
:root {
	--color-background: #111827;
	--color-text-primary: #f9fafb;
	--color-text-secondary: #9ca3af;
	--color-accent: #22d3ee;
	--color-surface: #1f2937;

	--font-family-headings: 'Inter', sans-serif;
	--font-family-body: 'Roboto', sans-serif;

	--header-height: 80px;
}

*,
*::before,
*::after {
	box-sizing: border-box;
	margin: 0;
	padding: 0;
}

html {
	scroll-behavior: smooth;
}

body {
	font-family: var(--font-family-body);
	font-size: 16px;
	line-height: 1.6;
	color: var(--color-text-primary);
	background-color: var(--color-background);
	-webkit-font-smoothing: antialiased;
	-moz-osx-font-smoothing: grayscale;
}

ul {
	list-style: none;
}

a {
	text-decoration: none;
	color: inherit;
}

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

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

.container {
	max-width: 1200px;
	margin-left: auto;
	margin-right: auto;
	padding-left: 15px;
	padding-right: 15px;
}

/* =========== LOGO =========== */
.logo {
	display: inline-flex;
	align-items: center;
	gap: 12px;
	font-family: var(--font-family-headings);
	font-size: 24px;
	font-weight: 700;
	color: var(--color-text-primary);
	transition: opacity 0.3s ease;
}

.logo:hover {
	opacity: 0.8;
}

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

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

.header__nav-list {
	display: flex;
	align-items: center;
	gap: 30px;
}

.header__nav-link {
	font-weight: 500;
	color: var(--color-text-secondary);
	transition: color 0.3s ease;
	padding: 5px;
}

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

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

/* =========== FOOTER =========== */
.footer {
	background-color: var(--color-surface);
	padding-top: 60px;
	border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer__container {
	display: grid;
	grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
	gap: 40px;
	margin-bottom: 60px;
}

.footer__column--about {
	max-width: 300px;
}

.footer__description {
	margin-top: 20px;
	color: var(--color-text-secondary);
	font-size: 14px;
}

.footer__heading {
	font-size: 18px;
	margin-bottom: 20px;
	color: var(--color-text-primary);
}

.footer__list li:not(:last-child) {
	margin-bottom: 12px;
}

.footer__link {
	color: var(--color-text-secondary);
	transition: color 0.3s ease;
	font-size: 15px;
}

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

.footer__list--contacts .footer__link {
	display: inline-flex;
	align-items: center;
	gap: 10px;
}

.footer__address {
	display: flex;
	align-items: flex-start;
	gap: 10px;
	color: var(--color-text-secondary);
	font-size: 15px;
}

.footer__icon {
	width: 18px;
	height: 18px;
	flex-shrink: 0;
	margin-top: 3px;
}

.footer__bottom {
	border-top: 1px solid rgba(255, 255, 255, 0.1);
	padding: 20px 0;
}

.footer__bottom-container {
	text-align: center;
	color: var(--color-text-secondary);
	font-size: 14px;
}

/* =========== RESPONSIVE STYLES =========== */
@media (max-width: 768px) {
	.header__nav {
		display: none; /* Будет управляться через JS */
		position: absolute;
		top: var(--header-height);
		left: 0;
		right: 0;
		background-color: var(--color-surface);
		padding: 20px;
		border-bottom: 1px solid rgba(255, 255, 255, 0.1);
	}

	.header__nav.is-active {
		display: block;
	}

	.header__nav-list {
		flex-direction: column;
		gap: 20px;
	}

	.header__burger {
		display: block;
	}
}

/* =========== KEYFRAMES =========== */
@keyframes fadeInUp {
	from {
		opacity: 0;
		transform: translateY(20px);
	}
	to {
		opacity: 1;
		transform: translateY(0);
	}
}

@keyframes blink {
	50% {
		border-color: transparent;
	}
}

/* =========== BUTTON =========== */
.btn {
	display: inline-block;
	padding: 12px 28px;
	background-color: var(--color-accent);
	color: var(--color-background);
	font-family: var(--font-family-headings);
	font-weight: 700;
	font-size: 16px;
	border-radius: 8px;
	border: 2px solid var(--color-accent);
	transition: all 0.3s ease;
	cursor: pointer;
}

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

/* =========== HERO SECTION =========== */
.hero {
	padding: 80px 0;
	min-height: calc(100vh - var(--header-height));
	display: flex;
	align-items: center;
}

.hero__container {
	display: grid;
	grid-template-columns: 1fr 1fr;
	align-items: center;
	gap: 60px;
}

.hero__content {
	animation: fadeInUp 0.8s ease-out forwards;
}

.hero__title {
	font-size: 2.5rem;
	line-height: 1.2;
	margin-bottom: 20px;
}

.hero__title--highlight {
	color: var(--color-accent);
	border-right: 3px solid var(--color-accent);
	animation: blink 0.75s step-end infinite;
}

.hero__subtitle {
	font-size: 18px;
	color: var(--color-text-secondary);
	max-width: 500px;
	margin-bottom: 30px;
	animation: fadeInUp 0.8s 0.2s ease-out forwards;
	opacity: 0;
}

.hero__btn {
	animation: fadeInUp 0.8s 0.4s ease-out forwards;
	opacity: 0;
}

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

.hero__img {
	width: 100%;
	border-radius: 16px;
	opacity: 0;
	animation: fadeInUp 0.8s 0.6s ease-out forwards;
}

/* =========== RESPONSIVE STYLES (Hero) =========== */
@media (max-width: 992px) {
	.hero__title {
		font-size: 1.5rem;
	}
}

@media (max-width: 768px) {
	.hero {
		padding: 60px 0;
		text-align: center;
	}

	.hero__container {
		grid-template-columns: 1fr;
		gap: 40px;
	}

	.hero__content {
		order: 2;
	}

	.hero__visual {
		order: 1;
	}

	.hero__subtitle {
		margin-left: auto;
		margin-right: auto;
	}
}

/* =========== GENERIC SECTION STYLES =========== */
.section-header {
	text-align: center;
	max-width: 700px;
	margin: 0 auto 60px;
}

.section-header__title {
	font-size: 36px;
	margin-bottom: 15px;
}

.section-header__subtitle {
	font-size: 18px;
	color: var(--color-text-secondary);
}

/* =========== FEATURES SECTION =========== */
.features {
	padding: 80px 0;
	background-color: var(--color-surface);
}

.features__grid {
	display: grid;
	grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
	gap: 30px;
}

.features__card {
	background-color: var(--color-background);
	padding: 30px;
	border-radius: 12px;
	border: 1px solid transparent;
	transition: transform 0.3s ease, border-color 0.3s ease;
	text-align: center;

	/* For animation */
	opacity: 0;
	transform: translateY(20px);
}

.features__card.is-visible {
	animation: fadeInUp 0.6s ease-out forwards;
}

.features__card:hover {
	transform: translateY(-5px);
	border-color: var(--color-accent);
}

.features__card-icon {
	display: inline-flex;
	justify-content: center;
	align-items: center;
	width: 64px;
	height: 64px;
	border-radius: 50%;
	background-color: rgba(34, 211, 238, 0.1);
	margin-bottom: 20px;
}

.features__card-icon i {
	width: 32px;
	height: 32px;
	color: var(--color-accent);
}

.features__card-title {
	font-size: 22px;
	margin-bottom: 10px;
}

.features__card-text {
	color: var(--color-text-secondary);
	font-size: 15px;
}

/* =========== RESPONSIVE STYLES (Features) =========== */
@media (max-width: 768px) {
	.features {
		padding: 60px 0;
	}
	.section-header {
		margin-bottom: 40px;
	}
	.section-header__title {
		font-size: 32px;
	}
}

/* =========== WORK (TABS) SECTION =========== */
.work {
	padding: 80px 0;
}

.tabs__nav {
	display: flex;
	justify-content: center;
	gap: 15px;
	margin-bottom: 40px;
	border-bottom: 1px solid var(--color-surface);
}

.tabs__nav-btn {
	display: inline-flex;
	align-items: center;
	gap: 8px;
	padding: 15px 25px;
	font-family: var(--font-family-headings);
	font-size: 16px;
	font-weight: 500;
	color: var(--color-text-secondary);
	background-color: transparent;
	border: none;
	border-bottom: 3px solid transparent;
	cursor: pointer;
	transition: all 0.3s ease;
	transform: translateY(1px);
}

.tabs__nav-icon {
	width: 18px;
	height: 18px;
}

.tabs__nav-btn:hover {
	color: var(--color-text-primary);
}

.tabs__nav-btn.is-active {
	color: var(--color-accent);
	border-bottom-color: var(--color-accent);
}

.tabs__content-panel {
	display: none;
	grid-template-columns: 1fr 1fr;
	align-items: center;
	gap: 60px;
	animation: fadeInUp 0.5s ease;
}

.tabs__content-panel.is-active {
	display: grid;
}

.tabs__content-title {
	font-size: 28px;
	margin-bottom: 15px;
}

.tabs__content-text p {
	font-size: 17px;
	color: var(--color-text-secondary);
	line-height: 1.7;
}

.tabs__content-img {
	width: 100%;
	max-width: 450px;
	border-radius: 12px;
	margin: 0 auto;
}

/* =========== RESPONSIVE STYLES (Tabs) =========== */
@media (max-width: 992px) {
	.tabs__content-panel {
		gap: 40px;
	}
}

@media (max-width: 768px) {
	.work {
		padding: 60px 0;
	}

	.tabs__nav {
		gap: 5px;
	}

	.tabs__nav-btn {
		padding: 12px 10px;
		font-size: 14px;
	}

	.tabs__content-panel {
		grid-template-columns: 1fr;
		gap: 40px;
		text-align: center;
	}

	.tabs__content-visual {
		order: -1;
	}
}

@media (max-width: 480px) {
	.tabs__nav {
		flex-direction: column;
		border-bottom: none;
	}

	.tabs__nav-btn {
		justify-content: center;
		border-bottom: 1px solid var(--color-surface);
		transform: translateY(0);
	}

	.tabs__nav-btn.is-active {
		border-color: var(--color-accent);
	}
}

/* =========== LIFE (ACCORDION) SECTION =========== */
.life {
	padding: 80px 0;
	background-color: var(--color-surface);
}

.accordion {
	max-width: 800px;
	margin: 0 auto;
}

.accordion__item {
	border-bottom: 1px solid var(--color-background);
}

.accordion__header {
	display: flex;
	justify-content: space-between;
	align-items: center;
	width: 100%;
	padding: 20px 0;
	background: none;
	border: none;
	text-align: left;
	cursor: pointer;
}

.accordion__title {
	font-family: var(--font-family-headings);
	font-size: 20px;
	font-weight: 500;
	color: var(--color-text-primary);
}

.accordion__icon {
	color: var(--color-accent);
	transition: transform 0.3s ease;
	flex-shrink: 0;
	margin-left: 15px;
}

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

.accordion__text {
	padding-bottom: 20px;
	color: var(--color-text-secondary);
	line-height: 1.7;
	max-width: 95%;
}

/* Active state for accordion */
.accordion__item.is-active .accordion__icon {
	transform: rotate(45deg);
}

/* =========== RESPONSIVE STYLES (Accordion) =========== */
@media (max-width: 768px) {
	.life {
		padding: 60px 0;
	}
	.accordion__title {
		font-size: 18px;
	}
}

/* =========== TOOLS SECTION =========== */
.tools {
	padding: 80px 0;
}

.tools__grid {
	display: grid;
	grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
	gap: 25px;
}

.tools__card {
	display: flex;
	flex-direction: column;
	align-items: center;
	justify-content: center;
	gap: 15px;
	padding: 25px;
	background-color: var(--color-surface);
	border-radius: 12px;
	border: 1px solid var(--color-surface);
	transition: transform 0.3s ease, border-color 0.3s ease;
	text-align: center;

	/* For animation */
	opacity: 0;
	transform: translateY(20px);
}

.tools__card.is-visible {
	animation: fadeInUp 0.6s ease-out forwards;
}

.tools__card:hover {
	transform: translateY(-5px);
	border-color: var(--color-accent);
}

.tools__card-logo {
	width: 64px;
	height: 64px;
	border-radius: 12px;
	object-fit: cover;
	background-color: var(--color-background);
}

.tools__card-name {
	font-family: var(--font-family-headings);
	font-weight: 500;
	color: var(--color-text-primary);
}

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

/* =========== RESPONSIVE STYLES (Tools) =========== */
@media (max-width: 768px) {
	.tools {
		padding: 60px 0;
	}
}

@media (max-width: 480px) {
	.tools__grid {
		grid-template-columns: repeat(2, 1fr);
		gap: 20px;
	}
}

/* =========== CONTACT SECTION =========== */
.contact {
	padding: 80px 0;
}

.contact__wrapper {
	display: grid;
	grid-template-columns: 1fr 1.2fr;
	gap: 60px;
	background-color: var(--color-surface);
	padding: 50px;
	border-radius: 16px;
}

.contact__info-title {
	font-size: 24px;
	margin-bottom: 15px;
}

.contact__info-text {
	color: var(--color-text-secondary);
	margin-bottom: 30px;
}

.contact__info-list {
	display: flex;
	flex-direction: column;
	gap: 20px;
}

.contact__info-item {
	display: flex;
	align-items: center;
	gap: 15px;
	font-size: 16px;
}

.contact__info-item i {
	color: var(--color-accent);
	width: 22px;
}

.contact__info-item a:hover {
	text-decoration: underline;
}

/* Form Styles */
.form__group {
	position: relative;
	margin-bottom: 25px;
}

.form__input {
	width: 100%;
	padding: 14px;
	background-color: var(--color-background);
	border: 1px solid var(--color-surface);
	border-radius: 8px;
	color: var(--color-text-primary);
	font-size: 16px;
	transition: border-color 0.3s ease;
}

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

.form__label {
	display: none;
	position: absolute;
	top: 14px;
	left: 14px;
	color: var(--color-text-secondary);
	pointer-events: none;
	transition: all 0.3s ease;
}

.form__input:focus ~ .form__label,
.form__input:not(:placeholder-shown) ~ .form__label {
	top: -10px;
	left: 10px;
	font-size: 12px;
	color: var(--color-accent);
	background-color: var(--color-surface);
	padding: 0 5px;
}

.form__group--checkbox {
	display: flex;
	align-items: center;
	gap: 12px;
}

.form__checkbox {
	width: 18px;
	height: 18px;
	accent-color: var(--color-accent);
}

.form__checkbox-label {
	font-size: 14px;
	color: var(--color-text-secondary);
}

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

.contact__btn {
	width: 100%;
}

.form__success-message {
	display: none; /* Hidden by default */
	text-align: center;
	padding: 40px;
}

.form__success-message i {
	color: var(--color-accent);
	width: 64px;
	height: 64px;
	margin-bottom: 20px;
}

.form__success-message h4 {
	font-size: 22px;
	margin-bottom: 10px;
}

/* =========== RESPONSIVE STYLES (Contact) =========== */
@media (max-width: 992px) {
	.contact__wrapper {
		grid-template-columns: 1fr;
		gap: 50px;
		padding: 40px;
	}
}

@media (max-width: 768px) {
	.contact {
		padding: 60px 0;
	}
}

/* =========== COOKIE POPUP =========== */
.cookie-popup {
	position: fixed;
	bottom: 0;
	left: 0;
	width: 100%;
	background-color: var(--color-surface);
	padding: 20px 0;
	border-top: 1px solid var(--color-background);
	box-shadow: 0 -5px 15px rgba(0, 0, 0, 0.2);
	z-index: 200;
	transform: translateY(0);
	transition: transform 0.4s ease-out;
}

.cookie-popup.is-hidden {
	transform: translateY(120%);
}

.cookie-popup__container {
	display: flex;
	justify-content: space-between;
	align-items: center;
	gap: 20px;
}

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

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

.cookie-popup__btn {
	padding: 8px 20px;
	flex-shrink: 0;
}

/* =========== RESPONSIVE STYLES (Cookie) =========== */
@media (max-width: 768px) {
	.cookie-popup__container {
		flex-direction: column;
		text-align: center;
	}
}

/* =========== GENERIC PAGES STYLES (Privacy, Terms etc.) =========== */
.pages {
	padding: 60px 0;
}

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

.pages h1 {
	font-size: 1.5rem;
	margin-bottom: 30px;
	color: var(--color-text-primary);
}

.pages h2 {
	font-size: 1.5rem;
	margin-top: 40px;
	margin-bottom: 20px;
	color: var(--color-text-primary);
}

.pages p {
	font-size: 17px;
	line-height: 1.8;
	color: var(--color-text-secondary);
	margin-bottom: 20px;
}

.pages ul {
	list-style: disc;
	padding-left: 25px;
	margin-bottom: 20px;
}

.pages li {
	font-size: 17px;
	line-height: 1.8;
	color: var(--color-text-secondary);
	margin-bottom: 15px;
}

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

.pages a:hover {
	opacity: 0.8;
}

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