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

/* ---- CSS VARIABLES ---- */
:root {
	--color-background: #111111;
	--color-surface: #2a2a2a;
	--color-primary: #c0eb6a;
	--color-text-main: #f5f5f5;
	--color-text-secondary: #888888;
	--color-border: #333333;

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

	--header-height: 70px;
}

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

html {
	scroll-behavior: smooth;
}

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

h1,
h2,
h3,
h4,
h5,
h6 {
	font-family: var(--font-family-headings);
	color: var(--color-text-main);
	font-weight: 600;
}

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

ul {
	list-style: none;
}

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

button {
	font-family: inherit;
	border: none;
	background: none;
	cursor: pointer;
}

.container {
	max-width: 1200px;
	margin-left: auto;
	margin-right: auto;
	padding-left: 1rem;
	padding-right: 1rem;
}

/* ---- LOGO ---- */
.logo {
	display: inline-flex;
	align-items: center;
	gap: 0.75rem;
	font-family: var(--font-family-headings);
	font-weight: 700;
	font-size: 1.5rem;
	color: var(--color-text-main);
}

.logo__svg {
	transition: transform 0.3s ease;
}

.logo:hover .logo__svg {
	transform: rotate(15deg);
}

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

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

.header__nav {
	display: none;
}

.header__burger-btn {
	color: var(--color-text-main);
	padding: 0.5rem;
}

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

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

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

.footer__copyright {
	font-size: 0.9rem;
	color: var(--color-text-secondary);
}

.footer__title {
	font-size: 1.1rem;
	margin-bottom: 1rem;
	font-weight: 600;
}

.footer__nav-list,
.footer__legal-list,
.footer__contact-list {
	display: flex;
	flex-direction: column;
	gap: 0.75rem;
}

.footer__link {
	color: var(--color-text-secondary);
	font-size: 0.95rem;
}

.footer__link:hover {
	color: var(--color-primary);
	text-decoration: underline;
}

.footer__contact-item {
	display: flex;
	align-items: center;
	gap: 0.75rem;
	color: var(--color-text-secondary);
	font-size: 0.95rem;
}

.footer__contact-item .lucide {
	width: 18px;
	height: 18px;
	flex-shrink: 0;
	color: var(--color-primary);
}

.footer__text {
	line-height: 1.5;
}

/* ---- MOBILE MENU ---- */
.mobile-menu {
	position: fixed;
	top: 0;
	right: 0;
	width: 100%;
	height: 100%;
	background-color: var(--color-background);
	z-index: 101;
	transform: translateX(100%);
	transition: transform 0.4s cubic-bezier(0.23, 1, 0.32, 1);
	display: flex;
	flex-direction: column;
	padding: 1.5rem;
}

.mobile-menu.is-open {
	transform: translateX(0);
}

.mobile-menu__close-btn {
	position: absolute;
	top: 1.25rem;
	right: 1rem;
	color: var(--color-text-main);
	padding: 0.5rem;
}

.mobile-menu__nav {
	margin-top: 6rem;
}

.mobile-menu__nav-list {
	display: flex;
	flex-direction: column;
	align-items: center;
	gap: 1rem;
}

.mobile-menu__nav-link {
	font-size: 1.75rem;
	font-family: var(--font-family-headings);
	font-weight: 600;
	padding: 0.5rem 1rem;
}

.mobile-menu__nav-link--cta {
	color: var(--color-primary);
}

/* ---- MEDIA QUERIES (Mobile-First) ---- */

/* Tablet */
@media (min-width: 768px) {
	.footer__container {
		grid-template-columns: repeat(2, 1fr);
	}
}

/* Desktop */
@media (min-width: 1024px) {
	.header__nav {
		display: block;
	}

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

	.header__nav-link {
		position: relative;
		padding: 0.25rem 0;
	}

	.header__nav-link::after {
		content: '';
		position: absolute;
		bottom: 0;
		left: 0;
		width: 100%;
		height: 2px;
		background-color: var(--color-primary);
		transform: scaleX(0);
		transform-origin: right;
		transition: transform 0.3s ease-in-out;
	}

	.header__nav-link:hover::after {
		transform: scaleX(1);
		transform-origin: left;
	}

	.header__nav-link--cta {
		background-color: var(--color-primary);
		color: var(--color-background);
		padding: 0.5rem 1.25rem;
		border-radius: 5px;
		transition: background-color 0.3s ease;
	}

	.header__nav-link--cta:hover {
		background-color: #a9d354; /* Slightly darker shade */
	}

	.header__nav-link--cta::after {
		display: none; /* No underline for CTA button */
	}

	.header__burger-btn {
		display: none;
	}

	.footer__container {
		grid-template-columns: 2fr 1fr 1fr 2fr;
	}
}

/* ---- GENERAL COMPONENTS ---- */
.btn {
	display: inline-block;
	padding: 0.8rem 2rem;
	font-family: var(--font-family-headings);
	font-weight: 600;
	font-size: 1rem;
	border-radius: 5px;
	text-align: center;
	cursor: pointer;
	transition: transform 0.3s ease, background-color 0.3s ease;
}

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

.btn--primary:hover {
	background-color: #a9d354;
	transform: translateY(-3px);
}

/* ---- HERO SECTION ---- */
.hero {
	position: relative;
	display: flex;
	align-items: center;
	min-height: 100vh;
	padding-top: var(--header-height);
	overflow: hidden; /* To hide decorative elements overflow */
}

.hero__container {
	position: relative;
	z-index: 2;
}

.hero__content {
	max-width: 800px;
	text-align: center;
	margin: 0 auto;
}

.hero__title {
	font-size: 2.5rem;
	font-weight: 700;
	line-height: 1.3;
	margin-bottom: 1.5rem;
	height: 156px;
}

.hero__title--animated {
	color: var(--color-primary);
	position: relative;
}

/* Blinking cursor effect for typewriter */
.hero__title--animated::after {
	content: '|';
	position: absolute;
	right: -10px;
	top: 0;
	color: var(--color-primary);
	animation: blink 1s infinite;
}

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

.hero__subtitle {
	font-size: 1.1rem;
	color: var(--color-text-secondary);
	max-width: 600px;
	margin: 0 auto 2.5rem;
	line-height: 1.7;
}

.hero__cta {
	animation: pulse 2s infinite cubic-bezier(0.66, 0, 0, 1);
}

@keyframes pulse {
	0%,
	100% {
		transform: scale(1);
	}
	50% {
		transform: scale(1.05);
	}
}

.hero__background-shape {
	position: absolute;
	top: 50%;
	left: 50%;
	width: 600px;
	height: 600px;
	background: radial-gradient(
		circle,
		rgba(192, 235, 106, 0.05) 0%,
		rgba(192, 235, 106, 0) 60%
	);
	transform: translate(-50%, -50%);
	z-index: 1;
	border-radius: 50%;
}

/* ---- MEDIA QUERIES (for Hero) ---- */
@media (min-width: 768px) {
	.hero__title {
		font-size: 3.5rem;
		height: 146px;
	}
	.hero__subtitle {
		font-size: 1.25rem;
	}
	.hero__background-shape {
		width: 800px;
		height: 800px;
	}
}

@media (min-width: 1024px) {
	.hero__content {
		text-align: left;
		margin: 0;
	}
	.hero__subtitle {
		margin: 0 0 2.5rem 0;
	}
}

/* ---- GENERAL COMPONENTS (дополнение) ---- */
.section-header {
	text-align: center;
	max-width: 700px;
	margin: 0 auto 4rem;
}

.section-header__title {
	font-size: 2.25rem;
	font-weight: 700;
	margin-bottom: 1rem;
}

.section-header__subtitle {
	font-size: 1.1rem;
	color: var(--color-text-secondary);
	line-height: 1.7;
}

/* ---- COURSES SECTION ---- */
.courses {
	padding: 6rem 0;
	background-color: var(--color-surface);
}

.courses__grid {
	display: grid;
	gap: 1.5rem;
	grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.course-card {
	background-color: var(--color-background);
	border: 1px solid var(--color-border);
	padding: 2rem;
	border-radius: 8px;
	transition: transform 0.3s ease, border-color 0.3s ease;
}

.course-card:hover {
	transform: translateY(-8px);
	border-color: var(--color-primary);
}

.course-card__icon {
	margin-bottom: 1.5rem;
	color: var(--color-primary);
}

.course-card__icon .lucide {
	width: 40px;
	height: 40px;
}

.course-card__title {
	font-size: 1.5rem;
	margin-bottom: 0.75rem;
}

.course-card__description {
	font-size: 0.95rem;
	color: var(--color-text-secondary);
	line-height: 1.6;
}

/* ---- MEDIA QUERIES (for Courses) ---- */
@media (min-width: 768px) {
	.section-header__title {
		font-size: 2.75rem;
	}
}

/* ---- FORMAT SECTION ---- */
.format {
	padding: 6rem 0;
	background-color: var(--color-background);
}

.format__tabs-nav {
	display: flex;
	justify-content: center;
	gap: 0.5rem;
	margin-bottom: 3rem;
	background-color: var(--color-surface);
	padding: 0.5rem;
	border-radius: 8px;
	max-width: 500px;
	margin-left: auto;
	margin-right: auto;
}

.format__tab-btn {
	flex: 1;
	padding: 0.75rem 1rem;
	border-radius: 6px;
	color: var(--color-text-secondary);
	font-weight: 600;
	font-size: 1rem;
	transition: background-color 0.3s ease, color 0.3s ease;
}

.format__tab-btn.is-active {
	background-color: var(--color-primary);
	color: var(--color-background);
}

.format__tab-pane {
	display: none;
	animation: fadeIn 0.5s ease-in-out;
}

.format__tab-pane.is-active {
	display: block;
}

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

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

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

.format__tab-pane-description {
	color: var(--color-text-secondary);
	margin-bottom: 2rem;
}

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

.format__feature-item {
	display: flex;
	align-items: center;
	gap: 0.75rem;
}

.format__feature-item .lucide {
	color: var(--color-primary);
	width: 20px;
	height: 20px;
	flex-shrink: 0;
}

.format__tab-pane-image img {
	border-radius: 8px;
}

/* ---- MEDIA QUERIES (for Format) ---- */
@media (min-width: 768px) {
	.format__tab-pane-grid {
		grid-template-columns: 1fr 1fr;
	}

	.format__tab-pane-image {
		order: 2; /* Image on the right */
	}

	.format__tab-pane-text {
		order: 1; /* Text on the left */
	}
}

/* ---- MENTORS SECTION ---- */
.mentors {
	padding: 6rem 0;
	background-color: var(--color-surface);
}

.mentors__grid {
	display: grid;
	gap: 2rem;
	grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

.mentor-card {
	background-color: var(--color-background);
	border: 1px solid var(--color-border);
	border-radius: 8px;
	padding: 2rem;
	text-align: center;
	transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.mentor-card:hover {
	transform: translateY(-10px);
	box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
}

.mentor-card__image-wrapper {
	width: 140px;
	height: 140px;
	border-radius: 50%;
	margin: 0 auto 1.5rem;
	overflow: hidden;
	border: 4px solid var(--color-border);
}

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

.mentor-card__name {
	font-size: 1.5rem;
	margin-bottom: 0.25rem;
}

.mentor-card__role {
	color: var(--color-text-secondary);
	font-size: 0.9rem;
	margin-bottom: 1.5rem;
	min-height: 40px; /* Reserve space for 2 lines of text */
}

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

.mentor-card__social-link {
	display: flex;
	align-items: center;
	justify-content: center;
	width: 40px;
	height: 40px;
	border: 1px solid var(--color-border);
	border-radius: 50%;
	color: var(--color-text-secondary);
	transition: background-color 0.3s ease, color 0.3s ease,
		border-color 0.3s ease;
}

.mentor-card__social-link:hover {
	background-color: var(--color-primary);
	color: var(--color-background);
	border-color: var(--color-primary);
}

/* ---- ABOUT SECTION ---- */
.about {
	padding: 6rem 0;
	background-color: var(--color-background);
}

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

.about__title {
	font-size: 2.25rem;
	margin-bottom: 1.5rem;
}

.about__description {
	color: var(--color-text-secondary);
	line-height: 1.7;
	margin-bottom: 1rem;
}

.about__stats-grid {
	display: grid;
	grid-template-columns: repeat(2, 1fr);
	gap: 1.5rem;
}

.stat-item {
	background-color: var(--color-surface);
	padding: 1.5rem;
	border-radius: 8px;
	border: 1px solid var(--color-border);
}

.stat-item__number {
	display: block;
	font-size: 3rem;
	font-family: var(--font-family-headings);
	font-weight: 700;
	color: var(--color-primary);
	margin-bottom: 0.5rem;
}

.stat-item__text {
	font-size: 0.9rem;
	color: var(--color-text-secondary);
	line-height: 1.5;
}

/* ---- MEDIA QUERIES (for About) ---- */
@media (min-width: 768px) {
	.about__title {
		font-size: 2.75rem;
	}
}

@media (min-width: 1024px) {
	.about__container {
		grid-template-columns: 1.2fr 1fr; /* Text column slightly wider */
	}
}

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

.contact__grid {
	display: grid;
	grid-template-columns: 1fr;
	gap: 3rem;
	margin-top: 4rem;
}

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

.contact__info-text {
	color: var(--color-text-secondary);
	margin-bottom: 2rem;
}

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

.contact__info-item {
	display: flex;
	align-items: center;
	gap: 1rem;
	font-size: 1.1rem;
}

.contact__info-item .lucide {
	color: var(--color-primary);
}

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

/* Form Styles */
.form-group {
	position: relative;
	margin-bottom: 1.5rem;
}

.contact-form__input {
	width: 100%;
	padding: 1rem;
	background-color: var(--color-background);
	border: 1px solid var(--color-border);
	border-radius: 5px;
	color: var(--color-text-main);
	font-size: 1rem;
	transition: border-color 0.3s ease;
}

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

/* Floating label effect */
.contact-form__label {
	display: none;
	position: absolute;
	top: 1rem;
	left: 1rem;
	color: var(--color-text-secondary);
	pointer-events: none;
	transition: all 0.3s ease;
}

.contact-form__input:focus ~ .contact-form__label,
.contact-form__input:not(:placeholder-shown) ~ .contact-form__label {
	top: -0.75rem;
	left: 0.75rem;
	font-size: 0.85rem;
	background-color: var(--color-surface);
	padding: 0 0.25rem;
}

.form-group--checkbox {
	display: flex;
	align-items: flex-start;
	gap: 0.75rem;
	margin-bottom: 2rem;
}

.form-group--checkbox input[type='checkbox'] {
	margin-top: 4px;
	accent-color: var(--color-primary);
	width: 18px;
	height: 18px;
}

.form-group--checkbox label {
	font-size: 0.9rem;
	color: var(--color-text-secondary);
}

.form-group--checkbox a {
	color: var(--color-text-main);
	text-decoration: underline;
}

.contact-form__submit {
	width: 100%;
	padding: 1rem;
}
.contact-form__submit:disabled {
	opacity: 0.7;
	cursor: not-allowed;
}

.form-message {
	padding: 1rem;
	margin-top: 1.5rem;
	border-radius: 5px;
	text-align: center;
	display: none; /* Hidden by default */
}

.form-message--success {
	background-color: rgba(192, 235, 106, 0.1);
	border: 1px solid var(--color-primary);
	color: var(--color-primary);
	display: block; /* Shown via JS */
}

.form-message--error {
	background-color: rgba(255, 100, 100, 0.1);
	border: 1px solid #ff6464;
	color: #ff6464;
	display: block; /* Shown via JS */
}

/* ---- MEDIA QUERIES (for Contact) ---- */
@media (min-width: 1024px) {
	.contact__grid {
		grid-template-columns: 1fr 1.2fr;
	}
}

/* ---- COOKIE POPUP ---- */
.cookie-popup {
	position: fixed;
	bottom: 0;
	left: 0;
	width: 100%;
	background-color: var(--color-surface);
	border-top: 1px solid var(--color-border);
	padding: 1rem;
	z-index: 200;
	display: flex;
	flex-direction: column;
	align-items: center;
	gap: 1rem;
	text-align: center;
	transform: translateY(100%);
	transition: transform 0.5s cubic-bezier(0.165, 0.84, 0.44, 1);
}

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

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

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

.cookie-popup__btn {
	padding: 0.5rem 1.5rem;
	flex-shrink: 0;
}

@media (min-width: 768px) {
	.cookie-popup {
		flex-direction: row;
		justify-content: center;
		padding: 1.5rem;
		gap: 2rem;
	}
}

/* ---- POLICY PAGES ---- */
.pages {
	padding: calc(var(--header-height) + 4rem) 0 4rem 0;
}

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

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

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

.pages p {
	color: var(--color-text-secondary);
	line-height: 1.8;
	margin-bottom: 1rem;
}

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

.pages li {
	margin-bottom: 0.75rem;
	line-height: 1.8;
}

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

.pages a:hover {
	text-decoration: none;
}

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