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

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

	/* ========== Colors ========== */
	--primary-color: #1a237e;
	--accent-color: #00e676;
	--accent-color-hover: #00c767;
	--text-color: #333333;
	--text-color-light: #ffffff;
	--body-color: #ffffff;
	--container-color: #f5f5f5;
	--footer-color: #1a237e;

	/* ========== Font and typography ========== */
	--body-font: 'Roboto', sans-serif;
	--title-font: 'Poppins', 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;

	/* ========== Font weight ========== */
	--font-medium: 500;
	--font-bold: 700;

	/* ========== Margins ========== */
	--mb-0-5: 0.5rem;
	--mb-1: 1rem;
	--mb-1-5: 1.5rem;
	--mb-2: 2rem;
	--mb-2-5: 2rem;

	/* ========== z-index ========== */
	--z-tooltip: 10;
	--z-fixed: 100;
}

@media screen and (min-width: 992px) {
	:root {
		--h1-font-size: 3.5rem;
		--h2-font-size: 2.5rem;
		--h3-font-size: 1.5rem;
		--normal-font-size: 1.125rem;
		--small-font-size: 0.938rem;
	}
}

/* ==================== BASE ==================== */
*,
*::before,
*::after {
	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(--body-color);
	color: var(--text-color);
	transition: background-color 0.3s;
}

h1,
h2,
h3 {
	color: var(--primary-color);
	font-family: var(--title-font);
	font-weight: var(--font-bold);
}

ul {
	list-style: none;
}

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

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

.container {
	max-width: 1120px;
	margin-left: var(--mb-1-5);
	margin-right: var(--mb-1-5);
}

/* ==================== HEADER ==================== */
.header {
	width: 100%;
	position: fixed;
	top: 0;
	left: 0;
	z-index: var(--z-fixed);
	background-color: var(--body-color);
	box-shadow: 0 2px 4px hsla(0, 0%, 15%, 0.1);
}

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

.logo {
	display: flex;
	align-items: center;
	gap: 0.5rem;
	font-family: var(--title-font);
	font-weight: var(--font-medium);
	font-size: var(--h3-font-size);
	color: var(--primary-color);
}

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

.nav {
	position: fixed;
	top: 0;
	right: -100%;
	width: 80%;
	height: 100%;
	background-color: var(--primary-color);
	padding: 4rem 2rem 0;
	transition: right 0.4s ease;
	z-index: var(--z-fixed);
}

.nav--active {
	right: 0;
}

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

.nav__link {
	color: var(--text-color-light);
	font-family: var(--title-font);
	font-weight: var(--font-medium);
	transition: color 0.3s;
}

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

.burger {
	display: flex;
	flex-direction: column;
	gap: 5px;
	width: 28px;
	height: 22px;
	cursor: pointer;
	background: transparent;
	border: none;
	z-index: calc(var(--z-fixed) + 1);
}

.burger__line {
	width: 100%;
	height: 2px;
	background-color: var(--primary-color);
	transition: transform 0.3s, opacity 0.3s;
}

.burger--active .burger__line:nth-child(1) {
	transform: translateY(7px) rotate(45deg);
	background-color: var(--text-color-light);
}
.burger--active .burger__line:nth-child(2) {
	opacity: 0;
}
.burger--active .burger__line:nth-child(3) {
	transform: translateY(-7px) rotate(-45deg);
	background-color: var(--text-color-light);
}

/* ==================== FOOTER ==================== */
.footer {
	background-color: var(--footer-color);
	color: var(--text-color-light);
	padding: 4rem 0 2rem;
}

.footer__container {
	display: grid;
	gap: 2.5rem;
}

.footer__logo {
	margin-bottom: var(--mb-1);
}

.footer__copy {
	font-size: var(--small-font-size);
	opacity: 0.8;
}

.footer__title {
	color: var(--text-color-light);
	font-size: var(--h3-font-size);
	margin-bottom: var(--mb-1);
}

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

.footer__link {
	opacity: 0.8;
	transition: opacity 0.3s, color 0.3s;
}

.footer__link:hover {
	opacity: 1;
	color: var(--accent-color);
}

.footer__list--contacts li {
	display: flex;
	align-items: center;
	gap: 0.5rem;
}

.footer__list--contacts .lucide {
	width: 20px;
	height: 20px;
	color: var(--accent-color);
}

.footer__address {
	align-items: flex-start;
}

/* ==================== MEDIA QUERIES ==================== */

/* For medium devices */
@media screen and (min-width: 576px) {
	.footer__container {
		grid-template-columns: repeat(2, 1fr);
	}
}

/* For large devices */
@media screen and (min-width: 768px) {
	body {
		margin: 0;
	}

	.header {
		box-shadow: 0 4px 8px hsla(0, 0%, 15%, 0.1);
	}

	.nav {
		position: static;
		width: auto;
		height: auto;
		background-color: transparent;
		padding: 0;
	}

	.nav__list {
		flex-direction: row;
		gap: 2.5rem;
	}

	.nav__link {
		color: var(--text-color);
		font-weight: var(--font-medium);
	}

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

	.burger {
		display: none;
	}

	.footer__container {
		grid-template-columns: repeat(4, 1fr);
		justify-items: center;
	}
	.footer__column--info {
		grid-column: 1 / 2;
	}
	.footer__column--nav {
		grid-column: 2 / 3;
	}
	.footer__column--legal {
		grid-column: 3 / 4;
	}
	.footer__column--contacts {
		grid-column: 4 / 5;
	}
}

@media screen and (min-width: 992px) {
	.container {
		margin-left: auto;
		margin-right: auto;
	}
}

/* ==================== REUSABLE CSS CLASSES ==================== */
.button {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	gap: 0.5rem;
	padding: 1rem 2rem;
	border: none;
	border-radius: 4px;
	font-family: var(--title-font);
	font-weight: var(--font-medium);
	font-size: var(--normal-font-size);
	cursor: pointer;
	transition: background-color 0.3s, transform 0.3s;
}

.button:hover {
	transform: translateY(-2px);
}

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

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

/* ==================== HERO SECTION ==================== */
.hero {
	padding-top: calc(var(--header-height) + 2rem);
	padding-bottom: 2rem;
}

.hero__container {
	display: grid;
	gap: 2.5rem;
}

.hero__content {
	text-align: center;
}

.hero__title {
	font-size: var(--h2-font-size);
	line-height: 1.2;
	margin-bottom: var(--mb-1);
}

.hero__description {
	font-size: var(--h3-font-size);
	color: var(--text-color);
	opacity: 0.9;
	margin-bottom: var(--mb-2);
}

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

.hero__image {
	border-radius: 8px;
}

/* ==================== MEDIA QUERIES (Hero Section) ==================== */
@media screen and (min-width: 768px) {
	.hero {
		padding-top: calc(var(--header-height) + 4rem);
		padding-bottom: 4rem;
	}

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

	.hero__content {
		text-align: left;
	}
}

@media screen and (min-width: 992px) {
	.hero__container {
		gap: 5rem;
	}

	.hero__title {
		margin-bottom: var(--mb-1-5);
	}

	.hero__description {
		margin-bottom: var(--mb-2-5);
	}
}

/* ==================== REUSABLE CSS CLASSES (Section) ==================== */
.section {
	padding: 4rem 0 2rem;
}

.section__header {
	text-align: center;
	margin-bottom: var(--mb-2);
}

.section__title {
	font-size: var(--h2-font-size);
	margin-bottom: var(--mb-0-5);
}

.section__subtitle {
	font-size: var(--normal-font-size);
	opacity: 0.8;
}

@media screen and (min-width: 992px) {
	.section {
		padding: 6rem 0 4rem;
	}
	.section__header {
		margin-bottom: 3rem;
	}
}

/* ==================== COURSES SECTION ==================== */
.courses {
	background-color: var(--container-color);
}

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

.course-card {
	background-color: var(--body-color);
	padding: 2rem 1.5rem;
	border-radius: 8px;
	box-shadow: 0 4px 12px hsla(0, 0%, 15%, 0.05);
	transition: transform 0.3s, box-shadow 0.3s;
	display: flex;
	flex-direction: column;
}

.course-card:hover {
	transform: translateY(-5px);
	box-shadow: 0 8px 24px hsla(0, 0%, 15%, 0.1);
}

.course-card__icon {
	width: 60px;
	height: 60px;
	display: flex;
	align-items: center;
	justify-content: center;
	background-color: var(--accent-color);
	border-radius: 50%;
	margin-bottom: var(--mb-1-5);
}

.course-card__icon .lucide {
	width: 32px;
	height: 32px;
	color: var(--primary-color);
}

.course-card__title {
	font-size: var(--h3-font-size);
	margin-bottom: var(--mb-0-5);
}

.course-card__description {
	margin-bottom: var(--mb-1-5);
	flex-grow: 1; /* Pushes the link to the bottom */
}

.course-card__link {
	display: flex;
	align-items: center;
	gap: 0.5rem;
	color: var(--primary-color);
	font-weight: var(--font-medium);
	font-family: var(--title-font);
}

.course-card__link .lucide {
	transition: transform 0.3s;
}

.course-card__link:hover .lucide {
	transform: translateX(5px);
}

/* ==================== MEDIA QUERIES (Courses Section) ==================== */
@media screen and (min-width: 576px) {
	.courses__grid {
		grid-template-columns: repeat(2, 1fr);
	}
}

@media screen and (min-width: 992px) {
	.courses__grid {
		grid-template-columns: repeat(3, 1fr);
		gap: 2rem;
	}
}

/* ==================== ABOUT SECTION ==================== */
.about__container {
	display: grid;
	gap: 2.5rem;
}

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

.about__image {
	border-radius: 8px;
}

.about__content .section__header {
	text-align: left;
	margin-bottom: var(--mb-1-5);
}

.about__description {
	margin-bottom: var(--mb-2);
	line-height: 1.6;
}

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

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

.about__advantage-item .lucide {
	color: var(--accent-color);
	width: 24px;
	height: 24px;
	flex-shrink: 0; /* Prevents icon from shrinking */
	margin-top: 2px;
}

/* ==================== MEDIA QUERIES (About Section) ==================== */
@media screen and (min-width: 768px) {
	.about__container {
		grid-template-columns: 1fr 1fr;
		align-items: center;
		gap: 3rem;
	}
}

@media screen and (min-width: 992px) {
	.about__container {
		gap: 5rem;
	}
}

/* ==================== MENTORS SECTION ==================== */
.mentors {
	/* Optional: alternate background color for visual separation */
	/* background-color: var(--container-color); */
}

.mentors__grid {
	display: grid;
	gap: 1.5rem;
	padding-top: 1rem; /* Extra space for the hover effect */
}

.mentor-card {
	background-color: var(--body-color);
	padding: 2rem 1.5rem;
	border-radius: 8px;
	box-shadow: 0 4px 12px hsla(0, 0%, 15%, 0.05);
	transition: transform 0.3s, box-shadow 0.3s;
	text-align: center;
}

.mentor-card:hover {
	transform: translateY(-8px);
	box-shadow: 0 8px 24px hsla(0, 0%, 15%, 0.1);
}

.mentor-card__photo-wrapper {
	width: 120px;
	height: 120px;
	margin: -80px auto 1rem; /* Pulls the photo up, creating an overlap effect */
	border-radius: 50%;
	border: 4px solid var(--body-color);
	box-shadow: 0 0 0 4px var(--accent-color);
	overflow: hidden;
}

.mentor-card__photo {
	width: 100%;
	height: 100%;
	object-fit: cover;
}

.mentor-card__name {
	font-size: var(--h3-font-size);
	margin-bottom: var(--mb-0-5);
}

.mentor-card__specialty {
	color: var(--primary-color);
	font-weight: var(--font-medium);
	margin-bottom: var(--mb-1);
}

.mentor-card__socials {
	display: flex;
	justify-content: center;
	gap: 1rem;
}

.mentor-card__social-link .lucide {
	color: var(--text-color);
	opacity: 0.6;
	transition: opacity 0.3s, transform 0.3s;
}

.mentor-card__social-link:hover .lucide {
	opacity: 1;
	transform: scale(1.1);
}

/* ==================== MEDIA QUERIES (Mentors Section) ==================== */
@media screen and (min-width: 576px) {
	.mentors__grid {
		grid-template-columns: repeat(2, 1fr);
		gap: 2.5rem 1.5rem;
		padding-top: 2rem;
	}
}

@media screen and (min-width: 992px) {
	.mentors__grid {
		grid-template-columns: repeat(3, 1fr);
		gap: 4rem 2rem;
	}
}

/* ==================== REVIEWS SECTION ==================== */
.reviews {
	background-color: var(--container-color);
}

.reviews__swiper {
	padding-bottom: 3rem; /* Space for pagination */
}

.review-card {
	background-color: var(--body-color);
	padding: 2rem;
	border-radius: 8px;
	height: 100%; /* Ensure all cards have same height in a row */
	display: flex;
	flex-direction: column;
}

.review-card__rating {
	display: flex;
	gap: 0.25rem;
	color: #ffc107; /* A nice gold color for stars */
	margin-bottom: var(--mb-1);
}
.review-card__rating .lucide-star {
	fill: #ffc107;
}

.review-card__text {
	font-style: italic;
	line-height: 1.6;
	margin-bottom: var(--mb-1-5);
	flex-grow: 1;
}

.review-card__author {
	display: flex;
	align-items: center;
	gap: 1rem;
}

.review-card__author-photo {
	width: 50px;
	height: 50px;
	border-radius: 50%;
	object-fit: cover;
}

.review-card__author-name {
	font-size: var(--normal-font-size);
	font-family: var(--title-font);
	color: var(--primary-color);
}

.review-card__author-course {
	font-size: var(--small-font-size);
	opacity: 0.8;
}

/* Swiper custom styles */
.swiper-pagination-bullet {
	background-color: var(--primary-color);
	opacity: 0.5;
}

.swiper-pagination-bullet-active {
	opacity: 1;
	background-color: var(--accent-color);
}

.swiper-button-next::after,
.swiper-button-prev::after {
	font-size: 1.5rem !important;
	font-weight: bold;
	color: var(--primary-color);
}

.swiper-button-prev,
.swiper-button-next {
	display: none !important; /* Hidden on mobile */
}

@media screen and (min-width: 768px) {
	.swiper-button-prev,
	.swiper-button-next {
		display: flex; /* Visible on larger screens */
	}
}

/* ==================== CONTACT SECTION ==================== */
.contact__container {
	display: grid;
	gap: 2.5rem;
}

.contact__content .section__header {
	text-align: left;
	margin-bottom: var(--mb-1-5);
}

.contact__text {
	line-height: 1.6;
	margin-bottom: var(--mb-2);
}

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

.contact__info-item {
	display: inline-flex;
	align-items: center;
	gap: 0.75rem;
	color: var(--text-color);
	font-weight: var(--font-medium);
}
.contact__info-item .lucide {
	color: var(--accent-color);
}
.contact__info-item:hover {
	color: var(--primary-color);
}

.contact__form-wrapper {
	background-color: var(--container-color);
	padding: 2rem;
	border-radius: 8px;
	position: relative;
}

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

.contact__form-group {
	position: relative;
}

.contact__form-input {
	width: 100%;
	padding: 1rem;
	border: 1px solid #ccc;
	border-radius: 4px;
	background-color: var(--body-color);
	font-size: var(--normal-font-size);
	outline: none;
}

.contact__form-label {
	position: absolute;
	top: 1rem;
	left: 1rem;
	color: #999;
	transition: all 0.3s;
	pointer-events: none; /* Allows clicks to pass through to the input */
}

/* 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);
	background-color: var(--container-color);
	padding: 0 0.25rem;
	color: var(--primary-color);
}

.contact__form-group--checkbox {
	display: flex;
	align-items: flex-start;
	gap: 0.5rem;
}

.contact__form-checkbox {
	margin-top: 4px;
}

.contact__form-checkbox-label {
	font-size: var(--small-font-size);
}
.contact__form-checkbox-label a {
	color: var(--primary-color);
	text-decoration: underline;
}

.contact__form-button {
	width: 100%;
}

.contact__success-message {
	position: absolute;
	top: 0;
	left: 0;
	width: 100%;
	height: 100%;
	background-color: var(--container-color);
	display: flex;
	flex-direction: column;
	justify-content: center;
	align-items: center;
	text-align: center;
	padding: 2rem;
	border-radius: 8px;
	opacity: 0;
	visibility: hidden;
	transition: opacity 0.4s, visibility 0.4s;
}

.contact__success-message.is-visible {
	opacity: 1;
	visibility: visible;
}

.contact__success-message .lucide {
	width: 60px;
	height: 60px;
	color: var(--accent-color);
	margin-bottom: var(--mb-1);
}

/* ==================== MEDIA QUERIES (Contact Section) ==================== */
@media screen and (min-width: 992px) {
	.contact__container {
		grid-template-columns: 1fr 1fr;
		align-items: center;
		gap: 5rem;
	}
}

/* ==================== COOKIE POPUP ==================== */
.cookie-popup {
	position: fixed;
	bottom: 1.5rem;
	left: 1.5rem;
	right: 1.5rem;
	background-color: var(--primary-color);
	color: var(--text-color-light);
	padding: 1.5rem 2rem;
	border-radius: 8px;
	box-shadow: 0 8px 24px hsla(0, 0%, 15%, 0.2);
	z-index: var(--z-fixed);
	opacity: 0;
	transform: translateY(20px);
	transition: opacity 0.4s, transform 0.4s;
	pointer-events: none;
}

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

.cookie-popup__container {
	display: flex;
	justify-content: space-between;
	align-items: center;
	gap: 1.5rem;
}

.cookie-popup__text {
	font-size: var(--small-font-size);
}

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

.cookie-popup__button {
	background-color: var(--accent-color);
	color: var(--primary-color);
	border: none;
	border-radius: 4px;
	padding: 0.75rem 1.5rem;
	cursor: pointer;
	font-weight: var(--font-medium);
	white-space: nowrap; /* Prevent button text from wrapping */
	transition: background-color 0.3s;
}

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

@media screen and (max-width: 576px) {
	.cookie-popup__container {
		flex-direction: column;
		align-items: flex-start;
		text-align: center;
	}
	.cookie-popup__button {
		align-self: stretch;
	}
}

/* ==================== GENERIC PAGES (Privacy, Terms, etc.) ==================== */
.pages {
	padding-top: calc(var(--header-height) + 2rem);
	padding-bottom: 4rem;
}

.pages .container {
	max-width: 800px; /* Оптимальная ширина для чтения текста */
}

.pages h1,
.pages h2 {
	font-family: var(--title-font);
	color: var(--primary-color);
	margin-bottom: var(--mb-1-5);
}

.pages h1 {
	font-size: 1.5rem;
	margin-bottom: var(--mb-2);
}

.pages h2 {
	font-size: 1.5rem;
	margin-top: var(--mb-2);
}

.pages p {
	line-height: 1.7;
	margin-bottom: var(--mb-1-5);
}

.pages ul {
	list-style-type: disc;
	padding-left: 1.5rem;
	margin-bottom: var(--mb-1-5);
}

.pages li {
	margin-bottom: var(--mb-0-5);
	line-height: 1.7;
}

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

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

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