/* ==================== GOOGLE FONTS ==================== */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600&family=Manrope:wght@700;800&display=swap');

/* ==================== CSS VARIABLES ==================== */
:root {
	/* Colors */
	--color-bg: #ffffff;
	--color-bg-alt: #f8f9fa;
	--color-text: #1d2939;
	--color-text-light: #6c757d;
	--color-primary: #007aff;
	--color-primary-hover: #0056b3;
	--color-border: #e9ecef;
	--color-footer-bg: #1d2939;
	--color-footer-text: #e9ecef;
	--color-white: #ffffff;

	/* Fonts */
	--font-family-body: 'Inter', sans-serif;
	--font-family-heading: 'Manrope', sans-serif;

	/* Spacing & Radius */
	--container-width: 1140px;
	--container-padding: 1.5rem;
	--border-radius: 8px;
	--header-height: 5rem;
}

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

html {
	scroll-behavior: smooth;
	font-size: 16px; /* 1rem = 16px */
}

body {
	font-family: var(--font-family-body);
	font-size: 1rem;
	line-height: 1.6;
	background-color: var(--color-bg);
	color: var(--color-text);
	-webkit-font-smoothing: antialiased;
}

h1,
h2,
h3,
h4,
h5,
h6 {
	font-family: var(--font-family-heading);
	color: var(--color-text);
	font-weight: 700;
	line-height: 1.3;
	margin-bottom: 1rem;
}

a {
	color: var(--color-primary);
	text-decoration: none;
	transition: color 0.3s ease;
}

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

ul {
	list-style: none;
}

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

button {
	font-family: var(--font-family-body);
	cursor: pointer;
	border: none;
	background-color: transparent;
}

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

.button {
	display: inline-block;
	font-weight: 600;
	font-size: 0.95rem;
	padding: 0.75rem 1.75rem;
	border-radius: var(--border-radius);
	text-align: center;
	transition: all 0.3s ease;
}

.button--primary {
	background-color: var(--color-primary);
	color: var(--color-white);
}

.button--primary:hover {
	background-color: var(--color-primary-hover);
	color: var(--color-white);
	transform: translateY(-2px);
	box-shadow: 0 4px 12px rgba(0, 122, 255, 0.2);
}

/* ==================== LOGO ==================== */
.logo {
	display: flex;
	align-items: center;
	gap: 0.5rem;
	font-family: var(--font-family-heading);
	font-weight: 800;
	font-size: 1.5rem;
	color: var(--color-text);
}

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

.logo__icon {
	width: 32px;
	height: 32px;
	color: var(--color-primary);
}

/* ==================== HEADER ==================== */
.header {
	position: fixed;
	top: 0;
	left: 0;
	width: 100%;
	height: var(--header-height);
	background-color: var(--color-bg);
	border-bottom: 1px solid var(--color-border);
	z-index: 100;
	transition: box-shadow 0.3s ease;
}

.header.header--scrolled {
	box-shadow: 0 4px 12px rgba(29, 41, 57, 0.05);
}

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

.nav__list {
	display: flex;
	align-items: center;
	gap: 2rem;
}

.nav__link {
	font-size: 0.95rem;
	font-weight: 500;
	color: var(--color-text);
	position: relative;
	padding: 0.5rem 0;
}

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

.nav__link:hover::after,
.nav__link.active::after {
	width: 100%;
}

.nav__link.nav__button {
	padding: 0.75rem 1.75rem;
}

.nav__link.nav__button:hover {
	color: var(--color-white);
}

.nav__link.nav__button::after {
	display: none;
}

.burger {
	display: none; /* Приховано на десктопі */
	width: 28px;
	height: 22px;
	position: relative;
	z-index: 110;
}

.burger__line {
	display: block;
	width: 100%;
	height: 2px;
	background-color: var(--color-text);
	position: absolute;
	left: 0;
	border-radius: 2px;
	transition: all 0.3s ease;
}

.burger__line:nth-child(1) {
	top: 0;
}
.burger__line:nth-child(2) {
	top: 50%;
	transform: translateY(-50%);
}
.burger__line:nth-child(3) {
	bottom: 0;
}

/* ==================== MOBILE MENU (MEDIA QUERY) ==================== */
@media (max-width: 992px) {
	.nav {
		position: fixed;
		top: 0;
		right: -100%; /* Сховано за екраном */
		width: 80%;
		max-width: 320px;
		height: 100vh;
		background-color: var(--color-bg);
		box-shadow: -4px 0 15px rgba(29, 41, 57, 0.1);
		padding: 6rem 2rem 2rem;
		transition: right 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
		z-index: 105;
	}

	.header--open .nav {
		right: 0; /* Показати меню */
	}

	.nav__list {
		flex-direction: column;
		align-items: flex-start;
		gap: 1.5rem;
	}

	.nav__link {
		font-size: 1.1rem;
	}

	.nav__item:last-child {
		margin-top: 1rem;
	}

	.nav__button {
		width: 100%;
	}

	.burger {
		display: block;
	}

	/* Burger animation */
	.header--open .burger__line:nth-child(1) {
		top: 50%;
		transform: translateY(-50%) rotate(45deg);
	}
	.header--open .burger__line:nth-child(2) {
		opacity: 0;
	}
	.header--open .burger__line:nth-child(3) {
		bottom: 50%;
		transform: translateY(50%) rotate(-45deg);
	}
}

/* ==================== FOOTER ==================== */
.footer {
	background-color: var(--color-footer-bg);
	color: var(--color-footer-text);
	padding-top: 4rem;
}

.footer .logo {
	color: var(--color-white);
}

.footer .logo:hover {
	color: var(--color-white);
}

.footer .logo__icon {
	color: var(--color-primary);
}

.footer__container {
	display: grid;
	grid-template-columns: repeat(4, 1fr);
	gap: 2rem;
}

.footer__description {
	margin-top: 1rem;
	font-size: 0.9rem;
	color: var(--color-text-light);
	max-width: 250px;
}

.footer__title {
	font-size: 1.1rem;
	font-weight: 600;
	color: var(--color-white);
	margin-bottom: 1.5rem;
}

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

.footer__link {
	color: var(--color-footer-text);
	font-size: 0.9rem;
	transition: all 0.3s ease;
}

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

.footer__item--contact {
	display: flex;
	align-items: flex-start;
	gap: 0.75rem;
}

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

.footer__text {
	font-size: 0.9rem;
	color: var(--color-footer-text);
}

.footer__bottom {
	border-top: 1px solid rgba(255, 255, 255, 0.1);
	margin-top: 3rem;
	padding: 1.5rem 0;
}

.footer__bottom-container {
	text-align: center;
}

.footer__copyright {
	font-size: 0.85rem;
	color: var(--color-text-light);
}

/* Footer Responsive */
@media (max-width: 992px) {
	.footer__container {
		grid-template-columns: repeat(2, 1fr);
		gap: 2.5rem;
	}
}

@media (max-width: 576px) {
	.footer__container {
		grid-template-columns: 1fr;
		gap: 2rem;
	}

	.footer__column {
		text-align: center;
	}

	.footer__column--logo {
		align-items: center;
	}

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

	.footer__list {
		align-items: center;
	}

	.footer__item--contact {
		text-align: left;
		max-width: 300px;
		margin: 0 auto;
	}
}

/* ==================== HERO ==================== */
.hero {
	padding-top: calc(
		var(--header-height) + 3rem
	); /* Відступ від фіксованого хедера */
	padding-bottom: 4rem;
	overflow-x: hidden; /* Для коректної роботи AOS */
}

.hero__container {
	display: grid;
	grid-template-columns: 1fr;
	align-items: center;
	gap: 3rem;
	text-align: center;
}

.hero__title {
	font-size: 1.5rem; /* 40px */
	font-weight: 800;
	margin-bottom: 1.5rem;
}

.hero__description {
	font-size: 1.1rem;
	color: var(--color-text-light);
	margin-bottom: 2.5rem;
	max-width: 600px;
	margin-left: auto;
	margin-right: auto;
}

.hero__image-wrapper {
	background-color: var(--color-bg-alt);
	border-radius: var(--border-radius);
	padding: 1rem;
	display: flex;
	justify-content: center;
	align-items: center;
}

.hero__image {
	width: 100%;
	border-radius: var(--border-radius);
	object-fit: cover;
}

/* Hero Responsive */
@media (min-width: 768px) {
	.hero__title {
		font-size: 2rem; /* 52px */
	}

	.hero__description {
		font-size: 1.2rem;
	}
}

@media (min-width: 992px) {
	.hero {
		padding-top: calc(var(--header-height) + 5rem);
		padding-bottom: 6rem;
	}

	.hero__container {
		grid-template-columns: 0.9fr 1.1fr; /* 55% / 45% */
		gap: 4rem;
		text-align: left;
	}

	.hero__content {
		order: 1;
	}

	.hero__image-wrapper {
		order: 2;
		padding: 1rem;
	}

	.hero__description {
		margin-left: 0;
		margin-right: 0;
	}
}

/* ==================== REUSABLE SECTION HEADER ==================== */
.section-header {
	text-align: center;
	max-width: 700px;
	margin: 0 auto 3rem auto;
}

.section-header__subtitle {
	display: inline-block;
	font-size: 0.9rem;
	font-weight: 600;
	color: var(--color-primary);
	background-color: rgba(0, 122, 255, 0.1);
	padding: 0.25rem 0.75rem;
	border-radius: 1rem;
	margin-bottom: 0.75rem;
	text-transform: uppercase;
}

.section-header__title {
	font-size: 2.25rem; /* 36px */
	font-weight: 800;
	margin-bottom: 1rem;
}

.section-header__description {
	font-size: 1.1rem;
	color: var(--color-text-light);
}

@media (min-width: 768px) {
	.section-header {
		margin-bottom: 4rem;
	}
	.section-header__title {
		font-size: 2.75rem; /* 44px */
	}
}

/* ==================== ABOUT SECTION ==================== */
.about {
	padding: 4rem 0;
	background-color: var(--color-bg-alt);
}

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

/* Feature Card Style */
.feature-card {
	background-color: var(--color-bg);
	border: 1px solid var(--color-border);
	border-radius: var(--border-radius);
	padding: 2rem;
	text-align: center;
	transition: all 0.3s ease;
}

.feature-card:hover {
	transform: translateY(-8px);
	box-shadow: 0 10px 30px rgba(29, 41, 57, 0.08);
}

.feature-card__icon-wrapper {
	width: 60px;
	height: 60px;
	border-radius: 50%;
	background-color: var(--color-primary);
	color: var(--color-white);
	display: flex;
	justify-content: center;
	align-items: center;
	margin: 0 auto 1.5rem auto;
}

.feature-card__icon {
	width: 28px;
	height: 28px;
}

.feature-card__title {
	font-size: 1.25rem;
	font-weight: 700;
	margin-bottom: 0.75rem;
}

.feature-card__description {
	font-size: 0.95rem;
	color: var(--color-text-light);
	line-height: 1.7;
}

/* About Responsive */
@media (min-width: 768px) {
	.about {
		padding: 6rem 0;
	}

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

	.feature-card {
		padding: 2.5rem;
	}
}

/* ==================== TECHNOLOGIES ==================== */
.tech {
	padding: 4rem 0;
	overflow-x: hidden; /* Для коректної роботи AOS */
}

.tech__container {
	display: grid;
	grid-template-columns: 1fr;
	gap: 3rem;
	align-items: center;
}

.tech__image-wrapper {
	background-color: var(--color-bg-alt);
	border-radius: var(--border-radius);
	padding: 2rem;
}

.tech__image {
	width: 100%;
	border-radius: var(--border-radius);
	object-fit: cover;
}

/* Вирівнюємо заголовок секції по лівому краю */
.tech__header {
	text-align: left;
	margin-left: 0;
	margin-right: 0;
	margin-bottom: 2rem;
}

.tech__list {
	display: flex;
	flex-direction: column;
	gap: 1.25rem;
	margin-bottom: 2.5rem;
}

.tech__list-item {
	display: flex;
	align-items: flex-start;
	gap: 0.75rem;
	font-size: 1rem;
	color: var(--color-text-light);
}

.tech__list-item strong {
	color: var(--color-text);
}

.tech__list-icon {
	width: 20px;
	height: 20px;
	color: var(--color-primary);
	flex-shrink: 0;
	margin-top: 2px;
}

.tech__button {
	width: 100%;
}

/* Technologies Responsive */
@media (min-width: 768px) {
	.tech {
		padding: 6rem 0;
	}

	.tech__container {
		grid-template-columns: 1fr 1fr;
		gap: 4rem;
	}

	.tech__image-wrapper {
		padding: 3rem;
	}

	.tech__button {
		width: auto;
	}
}

/* ==================== KEYFRAMES ==================== */
@keyframes fadeIn {
	from {
		opacity: 0;
		transform: translateY(10px);
	}
	to {
		opacity: 1;
		transform: translateY(0);
	}
}

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

.tabs__nav {
	display: flex;
	justify-content: center;
	gap: 0.5rem;
	border-bottom: 1px solid var(--color-border);
	margin-bottom: 3rem;
	flex-wrap: wrap; /* Для мобільних */
}

.tabs__button {
	display: flex;
	align-items: center;
	gap: 0.5rem;
	padding: 0.75rem 1.5rem;
	font-size: 1rem;
	font-weight: 600;
	color: var(--color-text-light);
	border-bottom: 3px solid transparent;
	margin-bottom: -2px; /* Накладення на загальний border */
	transition: all 0.3s ease;
}

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

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

.tabs__button--active {
	color: var(--color-primary);
	border-bottom-color: var(--color-primary);
}

/* Tab Panes */
.tabs__pane {
	display: none; /* Сховано за замовчуванням */
	grid-template-columns: 1fr;
	gap: 3rem;
	align-items: center;
}

.tabs__pane--active {
	display: grid; /* Показати активну панель */
	animation: fadeIn 0.5s ease;
}

.tabs__pane-title {
	font-size: 2rem;
	margin-bottom: 1rem;
}

.tabs__pane-description {
	font-size: 1.1rem;
	color: var(--color-text-light);
	margin-bottom: 2.5rem;
	max-width: 500px;
}

.tabs__pane-image-wrapper {
	background-color: var(--color-bg);
	border: 1px solid var(--color-border);
	border-radius: var(--border-radius);
	padding: 2rem;
}

.tabs__pane-image {
	width: 100%;
	border-radius: var(--border-radius);
	object-fit: cover;
}

/* Features Responsive */
@media (min-width: 992px) {
	.features {
		padding: 6rem 0;
	}

	.tabs__pane {
		grid-template-columns: 1fr 1fr;
		gap: 4rem;
	}

	/* Змінюємо порядок для 2-ї панелі для "зигзаг" ефекту */
	.tabs__pane[data-tab='2'] .tabs__pane-content {
		order: 2;
	}
	.tabs__pane[data-tab='2'] .tabs__pane-image-wrapper {
		order: 1;
	}
}

/* ==================== FAQ (ACCORDION) ==================== */
.faq {
	padding: 4rem 0;
}

.faq__container {
	max-width: 800px; /* Вужчий контейнер для кращої читабельності */
	margin-left: auto;
	margin-right: auto;
}

.faq__list {
	border: 1px solid var(--color-border);
	border-radius: var(--border-radius);
	overflow: hidden; /* Щоб рамки коректно обрізались */
}

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

.faq__item:last-child {
	border-bottom: none;
}

.faq__question {
	width: 100%;
	display: flex;
	justify-content: space-between;
	align-items: center;
	padding: 1.5rem;
	font-size: 1.1rem;
	font-weight: 600;
	color: var(--color-text);
	text-align: left;
	transition: background-color 0.3s ease;
}

.faq__question:hover {
	background-color: var(--color-bg-alt);
}

.faq__icon {
	width: 20px;
	height: 20px;
	color: var(--color-primary);
	flex-shrink: 0;
	margin-left: 1rem;
	transition: transform 0.3s ease;
}

.faq__answer-wrapper {
	max-height: 0;
	overflow: hidden;
	transition: max-height 0.3s ease-out;
}

.faq__answer {
	padding: 0 1.5rem 1.5rem 1.5rem;
	font-size: 0.95rem;
	color: var(--color-text-light);
	line-height: 1.7;
}

.faq__answer p + p {
	margin-top: 1rem;
}

.faq__answer strong {
	color: var(--color-text);
}

/* Active State */
.faq__item--active .faq__question {
	color: var(--color-primary);
}

.faq__item--active .faq__icon {
	transform: rotate(180deg);
}

.faq__item--active .faq__answer-wrapper {
	/* max-height буде встановлено через JS */
}

/* FAQ Responsive */
@media (min-width: 768px) {
	.faq {
		padding: 6rem 0;
	}
}

/* ==================== CONTACT ==================== */
.contact {
	padding: 4rem 0;
	background-color: var(--color-bg-alt);
}

.contact__container {
	max-width: 600px; /* Вузький контейнер для форми */
	margin-left: auto;
	margin-right: auto;
}

.contact__wrapper {
	background-color: var(--color-white);
	padding: 2rem;
	border: 1px solid var(--color-border);
	border-radius: var(--border-radius);
	box-shadow: 0 5px 20px rgba(29, 41, 57, 0.05);
}

.contact-form {
	display: grid;
	grid-template-columns: 1fr;
	gap: 1.25rem;
}

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

.form__label {
	font-size: 0.9rem;
	font-weight: 600;
	margin-bottom: 0.5rem;
}

.form__input {
	width: 100%;
	padding: 0.85rem 1rem;
	font-size: 1rem;
	font-family: var(--font-family-body);
	border: 1px solid var(--color-border);
	border-radius: var(--border-radius);
	transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.form__input::placeholder {
	color: #adb5bd;
}

.form__input:focus {
	outline: none;
	border-color: var(--color-primary);
	box-shadow: 0 0 0 3px rgba(0, 122, 255, 0.15);
}

/* Checkbox */
.form-check {
	display: flex;
	align-items: flex-start;
	gap: 0.75rem;
	margin-top: 0.5rem;
}

.form__check-input {
	width: 16px;
	height: 16px;
	flex-shrink: 0;
	margin-top: 3px;
	accent-color: var(--color-primary); /* Сучасна стилізація чекбоксу */
}

.form__check-label {
	font-size: 0.85rem;
	color: var(--color-text-light);
	line-height: 1.5;
}

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

.form__check-label a:hover {
	color: var(--color-primary-hover);
}

/* Button */
.contact-form__button {
	width: 100%;
	margin-top: 1rem;
	padding: 1rem;
	font-size: 1.1rem;
}

/* Success Message */
.form-success {
	display: none; /* Сховано за замовчуванням */
	text-align: center;
	padding: 2rem;
	border: 1px solid #28a745;
	background-color: #f0fff4;
	border-radius: var(--border-radius);
}

.form-success__icon {
	width: 48px;
	height: 48px;
	color: #28a745;
	margin-bottom: 1rem;
}

.form-success__title {
	font-size: 1.5rem;
	color: #155724;
	margin-bottom: 0.5rem;
}

.form-success__text {
	font-size: 1rem;
	color: #155724;
}

.form-success--active {
	display: block; /* Показати при успіху */
	animation: fadeIn 0.5s ease;
}

/* Contact Responsive */
@media (min-width: 768px) {
	.contact {
		padding: 6rem 0;
	}

	.contact__wrapper {
		padding: 3rem;
	}
}

/* ==================== COOKIE POPUP ==================== */
.cookie-popup {
	position: fixed;
	bottom: -100%; /* Сховано за замовчуванням */
	left: 0;
	width: 100%;
	background-color: var(--color-footer-bg);
	color: var(--color-footer-text);
	padding: 1.5rem;
	box-shadow: 0 -4px 20px rgba(29, 41, 57, 0.1);
	z-index: 200;
	transition: bottom 0.5s ease-in-out;
}

/* Стан "показано" */
.cookie-popup--active {
	bottom: 0;
}

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

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

.cookie-popup__link {
	color: var(--color-white);
	text-decoration: underline;
}

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

.cookie-popup__button {
	flex-shrink: 0;
	padding: 0.6rem 1.5rem;
	font-size: 0.9rem;
}

/* Cookie Popup Responsive */
@media (min-width: 768px) {
	.cookie-popup {
		padding: 1.5rem var(--container-padding);
	}
	.cookie-popup__content {
		flex-direction: row;
		gap: 2rem;
		text-align: left;
	}
	.cookie-popup__text {
		font-size: 0.95rem;
	}
}

.pages {
	padding-top: calc(
		var(--header-height) + 3rem
	); /* Відступ від фіксованого хедера */
	padding-bottom: 4rem;
}

.pages .container {
	max-width: 800px; /* Вузький контейнер для тексту */
}

.pages h1 {
	font-size: 1.5rem;
	font-weight: 800;
	margin-bottom: 1.5rem;
	padding-bottom: 1rem;
	border-bottom: 1px solid var(--color-border);
}

.pages h2 {
	font-size: 1.5rem;
	font-weight: 700;
	margin-top: 2.5rem;
	margin-bottom: 1rem;
}

.pages p {
	font-size: 1rem;
	line-height: 1.7;
	color: var(--color-text-light);
	margin-bottom: 1.25rem;
}

.pages p strong,
.pages li strong {
	color: var(--color-text);
	font-weight: 600;
}

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

.pages a:hover {
	color: var(--color-primary-hover);
	text-decoration: none;
}

.pages ul {
	list-style-type: disc;
	padding-left: 1.5rem;
	margin-bottom: 1.25rem;
}

.pages li {
	font-size: 1rem;
	color: var(--color-text-light);
	margin-bottom: 0.75rem;
	line-height: 1.7;
}

/* Responsive */
@media (min-width: 768px) {
	.pages {
		padding-top: calc(var(--header-height) + 4rem);
		padding-bottom: 6rem;
	}

	.pages h1 {
		font-size: 3rem;
	}

	.pages h2 {
		font-size: 2rem;
	}
}