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

/* ==================== CSS VARIABLES ==================== */
:root {
	/* Colors */
	--color-bg: #111827;
	--color-bg-light: #1f2937;
	--color-primary: #8b5cf6;
	--color-primary-hover: #7c3aed;
	--color-text: #f9fafb;
	--color-text-secondary: #9ca3af;
	--color-border: #374151;

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

	/* Spacing */
	--header-height: 5rem;
	--container-padding: 1rem;
}

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

html {
	scroll-behavior: smooth;
}

body {
	background-color: var(--color-bg);
	color: var(--color-text);
	font-family: var(--font-body);
	font-size: var(--normal-font-size);
	line-height: 1.6;
}

h1,
h2,
h3 {
	font-family: var(--font-heading);
	font-weight: 600;
}

ul {
	list-style: none;
}

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

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

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

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

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

.logo {
	display: inline-flex;
	align-items: center;
	gap: 0.5rem;
	font-family: var(--font-heading);
	font-weight: 700;
	font-size: 1.5rem;
	color: var(--color-text);
}

.logo__img {
	width: 32px;
	height: 32px;
}

.nav__list {
	display: flex;
	flex-direction: column;
	position: fixed;
	top: var(--header-height);
	left: -100%;
	width: 100%;
	height: calc(100vh - var(--header-height));
	background-color: var(--color-bg);
	padding: 2rem;
	gap: 1.5rem;
	transition: left 0.3s ease-in-out;
}

.nav__list.nav__list--active {
	left: 0;
}

.nav__link {
	font-size: 1.2rem;
	font-weight: 500;
	color: var(--color-text-secondary);
	transition: color 0.2s;
}

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

.nav__link--button {
	display: inline-block;
	background-color: var(--color-primary);
	color: var(--color-text);
	padding: 0.5rem 1.5rem;
	border-radius: 999px;
	margin-top: 1rem;
}

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

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

.header__burger .lucide {
	width: 32px;
	height: 32px;
}

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

.footer__container {
	display: grid;
	grid-template-columns: 1fr;
	gap: 3rem;
}

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

.footer__description {
	margin-top: 1rem;
	color: var(--color-text-secondary);
	max-width: 300px;
}

.footer__title {
	font-size: var(--h3-font-size);
	margin-bottom: 1rem;
}

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

.footer__link {
	color: var(--color-text-secondary);
	transition: color 0.2s ease-in-out;
}

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

.footer__list--contacts li,
.footer__address {
	display: flex;
	align-items: center;
	gap: 0.75rem;
}

.footer__contact-icon {
	width: 20px;
	height: 20px;
	flex-shrink: 0;
	color: var(--color-primary);
}

.footer__bottom {
	margin-top: 4rem;
	padding: 1.5rem 0;
	border-top: 1px solid var(--color-border);
	text-align: center;
}

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

/* ==================== MEDIA QUERIES ==================== */
@media screen and (min-width: 768px) {
	.nav__list {
		position: static;
		flex-direction: row;
		width: auto;
		height: auto;
		background-color: transparent;
		padding: 0;
		gap: 2rem;
		align-items: center;
		left: 0;
	}

	.nav__link {
		font-size: var(--normal-font-size);
	}

	.nav__link--button {
		margin-top: 0;
		padding: 0.6rem 1.6rem;
	}

	.header__burger {
		display: none;
	}

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

@media screen and (min-width: 1024px) {
	.footer__container {
		grid-template-columns: 2fr 1fr 1fr 2fr;
		gap: 2rem;
	}
}

/* ==================== HERO (v2) ==================== */
.hero {
	padding-top: calc(var(--header-height) + 3rem);
	padding-bottom: 4rem;
	overflow: hidden;
}

.hero__container {
	display: flex;
	flex-direction: column;
	align-items: center;
	text-align: center;
}

.hero__content {
	max-width: 800px; /* Limit width for better readability */
	margin-bottom: 3rem;
}

.hero__title {
	font-size: var(--h1-font-size);
	font-weight: 700;
	line-height: 1.2;
	margin-bottom: 1.5rem;
}

/* For JS text animation */
.hero__title .char {
	display: inline-block; /* Required for transform */
	opacity: 0;
	transform: translateY(20px) scale(0.9);
	transition: opacity 0.4s ease, transform 0.4s ease;
}

.hero__description {
	font-size: 1.125rem;
	color: var(--color-text-secondary);
	margin-bottom: 2.5rem;
	max-width: 650px;
	margin-left: auto;
	margin-right: auto;
}

/* Code Window Element */
.hero__code-window {
	width: 100%;
	max-width: 600px;
	background-color: var(--color-bg-light);
	border-radius: 0.75rem;
	border: 1px solid var(--color-border);
	box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.2),
		0 10px 10px -5px rgba(0, 0, 0, 0.1);
	animation: fadeInUp 1s ease-out 0.5s;
	animation-fill-mode: both; /* Keep state after animation ends */
}

@keyframes fadeInUp {
	from {
		opacity: 0;
		transform: translateY(30px);
	}
	to {
		opacity: 1;
		transform: translateY(0);
	}
}

.hero__code-header {
	display: flex;
	align-items: center;
	padding: 0.75rem;
	gap: 0.5rem;
	border-bottom: 1px solid var(--color-border);
}

.hero__code-dot {
	display: block;
	width: 12px;
	height: 12px;
	border-radius: 50%;
}

.hero__code-body {
	padding: 1.5rem;
	font-family: 'SF Mono', 'Courier New', monospace;
	font-size: 1.1rem;
	display: flex;
	align-items: center;
	color: var(--color-text-secondary);
}

.hero__code-prompt {
	color: var(--color-primary);
	margin-right: 0.75rem;
}

.hero__code-text {
	color: var(--color-text);
}

.hero__code-cursor {
	background-color: var(--color-primary);
	width: 10px; /* More like a block cursor */
	height: 1.2rem;
	display: inline-block;
	animation: blink 1s steps(1) infinite;
	margin-left: 4px;
}

@keyframes blink {
	50% {
		opacity: 0;
	}
}

/* ==================== MEDIA QUERIES (add to existing blocks) ==================== */
@media screen and (min-width: 768px) {
	:root {
		--h1-font-size: 3.25rem;
	}

	.hero {
		padding-top: calc(var(--header-height) + 4rem);
		padding-bottom: 5rem;
	}

	.hero__content {
		margin-bottom: 4rem;
	}
}

@media screen and (min-width: 1024px) {
	:root {
		--h1-font-size: 4rem;
	}
}

/* ==================== REUSABLE COMPONENTS ==================== */
.section {
	padding-top: 5rem;
	padding-bottom: 5rem;
}

.section__header {
	text-align: center;
	margin-bottom: 4rem;
	max-width: 700px;
	margin-left: auto;
	margin-right: auto;
}

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

.section__subtitle {
	font-size: 1.125rem;
	color: var(--color-text-secondary);
	line-height: 1.7;
}

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

.courses__grid {
	display: grid;
	grid-template-columns: 1fr;
	gap: 2rem;
}

.course-card {
	background-color: var(--color-bg);
	border-radius: 1rem;
	overflow: hidden;
	border: 1px solid var(--color-border);
	transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.course-card:hover {
	transform: translateY(-8px);
	box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
}

.course-card__image-wrapper {
	background-color: var(--color-bg-light);
}

.course-card__image {
	width: 100%;
	height: 200px;
	object-fit: cover;
	opacity: 0.8;
}

.course-card__content {
	padding: 1.5rem;
}

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

.course-card__description {
	color: var(--color-text-secondary);
	margin-bottom: 1.5rem;
	font-size: var(--normal-font-size);
}

.course-card__tags {
	display: flex;
	flex-wrap: wrap;
	gap: 0.5rem;
}

.course-card__tag {
	background-color: var(--color-bg-light);
	color: var(--color-text-secondary);
	padding: 0.25rem 0.75rem;
	border-radius: 999px;
	font-size: var(--small-font-size);
	font-weight: 500;
}

/* ==================== MEDIA QUERIES (add to existing blocks) ==================== */
@media screen and (min-width: 640px) {
	.courses__grid {
		grid-template-columns: repeat(2, 1fr);
	}
}

@media screen and (min-width: 1024px) {
	.courses__grid {
		grid-template-columns: repeat(4, 1fr);
	}
}

@media screen and (min-width: 768px) {
	.section {
		padding-top: 6rem;
		padding-bottom: 6rem;
	}
	:root {
		--h2-font-size: 2.5rem;
	}
}

/* ==================== FORMAT ==================== */
.format__tabs {
	background-color: var(--color-bg-light);
	border: 1px solid var(--color-border);
	border-radius: 1rem;
	padding: 1rem;
}

.format__tab-buttons {
	display: flex;
	flex-direction: column;
	gap: 0.5rem;
	margin-bottom: 2rem;
	border-bottom: 1px solid var(--color-border);
	padding-bottom: 1rem;
}

.format__tab-button {
	display: flex;
	align-items: center;
	justify-content: center;
	gap: 0.75rem;
	width: 100%;
	padding: 1rem;
	font-size: var(--normal-font-size);
	font-weight: 500;
	font-family: var(--font-body);
	background-color: transparent;
	color: var(--color-text-secondary);
	border: none;
	border-radius: 0.5rem;
	cursor: pointer;
	transition: background-color 0.3s, color 0.3s;
}

.format__tab-button:hover {
	background-color: var(--color-bg);
	color: var(--color-text);
}

.format__tab-button--active {
	background-color: var(--color-primary);
	color: var(--color-text);
}

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

.format__button-icon {
	width: 20px;
	height: 20px;
}

.format__tab-content {
	display: grid;
	grid-template-columns: 1fr;
	gap: 2rem;
	align-items: center;
	animation: fadeIn 0.5s ease-in-out;
}

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

.format__tab-content[hidden] {
	display: none;
}

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

.format__content-text p {
	color: var(--color-text-secondary);
	margin-bottom: 1.5rem;
}

.format__content-text ul {
	display: flex;
	flex-direction: column;
	gap: 1rem;
}

.format__content-text li {
	display: flex;
	align-items: center;
	gap: 0.75rem;
}

.format__list-icon {
	color: var(--color-primary);
	width: 22px;
	height: 22px;
	flex-shrink: 0;
}

.format__content-image img {
	border-radius: 0.75rem;
	border: 1px solid var(--color-border);
	width: 100%;
	height: auto;
	aspect-ratio: 16 / 10;
	object-fit: cover;
}

/* ==================== MEDIA QUERIES (add to existing blocks) ==================== */
@media screen and (min-width: 768px) {
	.format__tab-buttons {
		flex-direction: row;
		border-radius: 0.75rem;
		background-color: var(--color-bg);
		padding: 0.5rem;
	}

	.format__tab-content {
		grid-template-columns: 1fr 1fr;
		gap: 3rem;
		padding: 1rem;
	}

	.format__content-text {
		order: 1; /* Text first */
	}

	.format__content-image {
		order: 2; /* Image second */
	}

	/* Reverse order for second tab */
	#tab-content-2 .format__content-text {
		order: 2;
	}
	#tab-content-2 .format__content-image {
		order: 1;
	}
}

/* ==================== PROCESS ==================== */
.process {
	background-color: var(--color-bg-light);
}

.process__timeline {
	position: relative;
	display: grid;
	grid-template-columns: 1fr;
	gap: 2rem;
}

.process__item {
	display: flex;
	gap: 1.5rem;
	position: relative;
}

.process__step {
	flex-shrink: 0;
	width: 50px;
	height: 50px;
	display: flex;
	justify-content: center;
	align-items: center;
	border: 2px solid var(--color-primary);
	border-radius: 50%;
	font-weight: 700;
	font-family: var(--font-heading);
	color: var(--color-primary);
	background-color: var(--color-bg);
}

.process__item-title {
	font-size: var(--h3-font-size);
	margin-bottom: 0.5rem;
}

.process__item-description {
	color: var(--color-text-secondary);
}

/* ==================== MEDIA QUERIES (add to existing blocks) ==================== */
@media screen and (min-width: 768px) {
	.process__timeline {
		/* Draw the central line */
		&::before {
			content: '';
			position: absolute;
			top: 0;
			left: 50%;
			transform: translateX(-50%);
			width: 2px;
			height: 100%;
			background-color: var(--color-border);
		}
	}

	.process__item {
		width: 50%;
		padding: 0 2.5rem; /* Space from the central line */
	}

	/* Position items on the left */
	.process__item:nth-child(odd) {
		justify-self: start;
		text-align: right;
		flex-direction: row-reverse;
	}

	/* Position items on the right */
	.process__item:nth-child(even) {
		justify-self: end;
	}

	.process__step {
		position: absolute;
		top: -50px;
		left: calc(50% - 25px);
		transform: translateX(-50%);
		z-index: 1;
	}

	.process__item:nth-child(odd) .process__step {
		right: calc(50% - 25px);
		left: auto;
		transform: translateX(50%);
	}
}

/* ==================== REVIEWS ==================== */
.reviews {
	position: relative;
	overflow: hidden;
}

.reviews__slider-wrapper {
	position: relative;
}

.reviews__slider {
	padding: 1rem 0 3rem 0; /* Extra space for pagination */
}

.review-card {
	background-color: var(--color-bg-light);
	border: 1px solid var(--color-border);
	border-radius: 1rem;
	padding: 2rem;
	height: 100%; /* Make cards in a row equal height */
	display: flex;
	flex-direction: column;
	justify-content: space-between;
}

.review-card__text {
	font-size: 1.1rem;
	line-height: 1.7;
	color: var(--color-text-secondary);
	margin-bottom: 2rem;
	font-style: italic;
	position: relative;
	padding-left: 2rem;
}

.review-card__text::before {
	content: '“';
	position: absolute;
	left: 0;
	top: -0.5rem;
	font-size: 3rem;
	font-family: var(--font-heading);
	color: var(--color-primary);
	opacity: 0.5;
}

.review-card__author {
	display: flex;
	align-items: center;
	gap: 1rem;
	padding-top: 1.5rem;
	border-top: 1px solid var(--color-border);
}

.review-card__author-photo {
	width: 50px;
	height: 50px;
	border-radius: 50%;
	object-fit: cover;
	border: 2px solid var(--color-border);
}

.review-card__author-name {
	font-family: var(--font-heading);
	font-size: 1.1rem;
	margin: 0;
}

.review-card__author-course {
	font-size: var(--small-font-size);
	color: var(--color-text-secondary);
}

/* Swiper Navigation and Pagination */
.swiper-button-next,
.swiper-button-prev {
	color: var(--color-primary);
	background-color: var(--color-bg-light);
	width: 50px;
	height: 50px;
	border-radius: 50%;
	border: 1px solid var(--color-border);
	transition: background-color 0.3s, color 0.3s;
}

.swiper-button-next:hover,
.swiper-button-prev:hover {
	background-color: var(--color-primary);
	color: var(--color-text);
}

.swiper-button-next::after,
.swiper-button-prev::after {
	font-size: 1.5rem;
	font-weight: bold;
}

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

.swiper-pagination-bullet-active {
	background-color: var(--color-primary);
}

/* CSS fixes for section headers */
.section__header--left {
	text-align: left;
	margin-left: 0;
	margin-right: 0;
}

/* ==================== CONTACT ==================== */
.contact {
	background-color: var(--color-bg-light);
}

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

.contact__list {
	display: flex;
	flex-direction: column;
	gap: 1.5rem;
	margin-top: 2rem;
	list-style: none;
}

.contact__link,
.contact__address {
	display: inline-flex;
	align-items: center;
	gap: 1rem;
	color: var(--color-text-secondary);
	font-size: 1.1rem;
	transition: color 0.3s;
}
.contact__link:hover {
	color: var(--color-primary);
}
.contact__icon {
	width: 24px;
	height: 24px;
	color: var(--color-primary);
	flex-shrink: 0;
}

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

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

.form__group {
	display: flex;
	flex-direction: column;
}

.form__label {
	margin-bottom: 0.5rem;
	font-size: var(--small-font-size);
	color: var(--color-text-secondary);
	font-weight: 500;
}

.form__input {
	width: 100%;
	padding: 0.8rem 1rem;
	background-color: var(--color-bg-light);
	border: 1px solid var(--color-border);
	border-radius: 0.5rem;
	color: var(--color-text);
	font-size: var(--normal-font-size);
	transition: border-color 0.3s, box-shadow 0.3s;
}

.form__input:focus {
	outline: none;
	border-color: var(--color-primary);
	box-shadow: 0 0 0 3px rgba(139, 92, 246, 0.3);
}

.form__group--checkbox {
	margin-top: 0.5rem;
}

.form__checkbox-label {
	display: inline-block;
	align-items: center;
	gap: 0.75rem;
	font-size: var(--small-font-size);
	color: var(--color-text-secondary);
	cursor: pointer;
}

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

.form__checkbox-input {
	display: none; /* Hide default checkbox */
}

.form__custom-checkbox {
	width: 20px;
	height: 20px;
	border: 2px solid var(--color-border);
	border-radius: 4px;
	display: inline-block;
	transition: background-color 0.3s, border-color 0.3s;
	position: relative;
	flex-shrink: 0;
}

.form__checkbox-input:checked + .form__checkbox-label .form__custom-checkbox {
	background-color: var(--color-primary);
	border-color: var(--color-primary);
}

.form__custom-checkbox::after {
	content: '';
	position: absolute;
	left: 5px;
	top: 2px;
	width: 5px;
	height: 10px;
	border: solid var(--color-text);
	border-width: 0 2px 2px 0;
	transform: rotate(45deg);
	opacity: 0;
	transition: opacity 0.3s;
}

.form__checkbox-input:checked
	+ .form__checkbox-label
	.form__custom-checkbox::after {
	opacity: 1;
}

.form__button {
	width: 100%;
	padding: 1rem;
	font-size: 1.1rem;
}

.form__success-message {
	display: none; /* Hidden by default */
	text-align: center;
	padding: 2rem;
	border: 1px solid var(--color-primary);
	border-radius: 0.5rem;
	background-color: rgba(139, 92, 246, 0.1);
}

.form__success-message.active {
	display: block;
	animation: fadeIn 0.5s;
}

.form__success-icon {
	width: 48px;
	height: 48px;
	color: var(--color-primary);
	margin-bottom: 1rem;
}

/* MEDIA QUERIES */
@media screen and (min-width: 1024px) {
	.contact__wrapper {
		grid-template-columns: 1fr 1fr;
		align-items: center;
	}
}

/* ==================== COOKIE POPUP ==================== */
.cookie-popup {
	position: fixed;
	bottom: -100%; /* Initially hidden */
	left: 50%;
	transform: translateX(-50%);
	width: calc(100% - 2rem);
	max-width: 900px;
	background-color: var(--color-bg-light);
	border: 1px solid var(--color-border);
	padding: 1.5rem;
	border-radius: 1rem;
	box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
	display: flex;
	flex-direction: column;
	align-items: flex-start;
	gap: 1rem;
	z-index: 200;
	transition: bottom 0.5s ease-in-out;
}

.cookie-popup--active {
	bottom: 1rem; /* Slide in */
}

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

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

.cookie-popup__button {
	padding: 0.6rem 1.5rem;
	width: 100%;
}

@media screen and (min-width: 768px) {
	.cookie-popup {
		flex-direction: row;
		align-items: center;
		justify-content: space-between;
	}
	.cookie-popup__button {
		width: auto;
	}
}

/* ==================== GENERIC PAGES (Privacy, Terms, etc.) ==================== */
.pages .container {
	max-width: 800px; /* Optimal width for reading text */
	padding-top: calc(var(--header-height) + 4rem);
	padding-bottom: 5rem;
}

.pages h1 {
	font-size: 1.5rem;
	margin-bottom: 2rem;
	font-weight: 700;
	color: var(--color-text);
}

.pages h2 {
	font-size: 1.5rem;
	margin-top: 3rem;
	margin-bottom: 1.5rem;
	font-weight: 600;
	color: var(--color-text);
}

.pages p {
	font-size: 1.1rem;
	line-height: 1.8;
	color: var(--color-text-secondary);
	margin-bottom: 1.5rem;
}

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

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

.pages ul {
	list-style-type: none;
	padding-left: 1.5rem;
	margin-bottom: 1.5rem;
}

.pages li {
	font-size: 1.1rem;
	color: var(--color-text-secondary);
	margin-bottom: 1rem;
	position: relative;
}

.pages li::before {
	content: '•';
	color: var(--color-primary);
	font-size: 1.5rem;
	position: absolute;
	left: -1.5rem;
	top: -0.2rem;
}

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