/* Import Fonts */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;700&family=Roboto+Mono:wght@500&display=swap');

/* CSS Variables */
:root {
    --background-color: #111318;
    --secondary-bg-color: #1a1d23;
    --text-color: #EAEAEA;
    --muted-text-color: #a0a0a0;
    --primary-color: #4A90E2;
    --primary-hover-color: #357ABD;
    
    --font-main: 'Inter', sans-serif;
    --font-headings: 'Roboto Mono', monospace;

    --container-width: 1200px;
    --container-padding: 1rem;
}

/* Global Styles & Reset */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

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

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

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

ul {
    list-style: none;
}

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

.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

/* Header */
.header {
    padding: 1.5rem 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    position: sticky;
    top: 0;
    background-color: rgba(17, 19, 24, 0.8);
    backdrop-filter: blur(10px);
    z-index: 100;
}

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

.header__logo {
    font-family: var(--font-headings);
    font-size: 1.5rem;
    font-weight: 500;
    color: var(--text-color);
}

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

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

.header__link {
    color: var(--muted-text-color);
    font-size: 1rem;
    padding: 0.5rem 0;
}

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

.header__link--button {
    background-color: var(--primary-color);
    color: #fff;
    padding: 0.6rem 1.2rem;
    border-radius: 6px;
    transition: background-color 0.3s ease;
}

.header__link--button:hover {
    background-color: var(--primary-hover-color);
    color: #fff;
}

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

/* Footer */
.footer {
    padding: 4rem 0;
    background-color: var(--secondary-bg-color);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer__container {
    display: grid;
    grid-template-columns: 1fr 1fr 1.5fr 1.5fr;
    gap: 2rem;
}

.footer__logo {
    font-family: var(--font-headings);
    font-size: 1.5rem;
    font-weight: 500;
    color: var(--text-color);
}

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

.footer__title {
    font-size: 1.1rem;
    margin-bottom: 1rem;
    color: var(--text-color);
}

.footer__list {
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
}

.footer__link {
    color: var(--muted-text-color);
}

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

.footer__list--contacts {
    gap: 1rem;
}

.footer__contact-item {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    color: var(--muted-text-color);
}

.footer__contact-item i {
    flex-shrink: 0;
}

/* Responsive (Mobile-first approach) */
@media (max-width: 768px) {
    .header__nav {
        display: none; /* Logic for mobile menu will be added later */
    }

    .header__menu-button {
        display: block;
    }

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

@media (max-width: 480px) {
    .footer__container {
        grid-template-columns: 1fr;
    }
}

/* Hero Section */
.hero {
    padding: 6rem 0;
    overflow: hidden;
}

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

.hero__title {
    font-size: 3.5rem;
    line-height: 1.2;
    margin-bottom: 1.5rem;
}

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

.hero__cta-button {
    display: inline-block;
    background-color: var(--primary-color);
    color: #fff;
    padding: 1rem 2rem;
    border-radius: 8px;
    font-size: 1.1rem;
    font-weight: 500;
    transition: background-color 0.3s ease, transform 0.3s ease;
}

.hero__cta-button:hover {
    background-color: var(--primary-hover-color);
    color: #fff;
    transform: translateY(-3px);
}

.hero__animation-area {
    perspective: 1000px;
}

.hero__code-window {
    background-color: var(--secondary-bg-color);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
    transform: rotateY(-15deg) rotateX(5deg);
    transition: transform 0.4s ease;
}

.hero__code-window:hover {
    transform: rotateY(0deg) rotateX(0deg) scale(1.05);
}

.hero__code-header {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.8rem 1rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.hero__code-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background-color: #3a3d46;
}

.hero__code-dot:nth-child(1) { background-color: #ff5f56; }
.hero__code-dot:nth-child(2) { background-color: #ffbd2e; }
.hero__code-dot:nth-child(3) { background-color: #27c93f; }

.hero__code-body {
    padding: 2rem;
    font-family: var(--font-headings);
    font-size: 1.2rem;
    white-space: nowrap;
}

.hero__code-prompt {
    color: var(--muted-text-color);
    margin-right: 0.5rem;
}

.hero__animated-text {
    color: var(--primary-color);
}

.hero__cursor {
    display: inline-block;
    background-color: var(--text-color);
    width: 10px;
    margin-left: 4px;
    animation: blink 1s infinite;
}

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

/* Responsive */
@media (max-width: 992px) {
    .hero {
        padding: 4rem 0;
    }
    .hero__title {
        font-size: 2.8rem;
    }
    .hero__code-body {
        font-size: 1rem;
    }
}

@media (max-width: 768px) {
    .hero {
        text-align: center;
    }
    .hero__container {
        grid-template-columns: 1fr;
        gap: 4rem;
    }
    .hero__subtitle {
        margin-left: auto;
        margin-right: auto;
    }
    .hero__animation-area {
        perspective: none;
    }
    .hero__code-window {
        transform: none;
    }
     .hero__code-window:hover {
        transform: scale(1.05);
    }
}

/* Courses Section */
.courses {
    padding: 6rem 0;
    background-color: var(--secondary-bg-color);
}

.courses__header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 4rem;
}

.courses__title {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.courses__subtitle {
    font-size: 1.1rem;
    color: var(--muted-text-color);
    line-height: 1.7;
}

.courses__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.course-card {
    background-color: var(--background-color);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    padding: 2rem;
    display: flex;
    flex-direction: column;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.course-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.2);
    border-color: var(--primary-color);
}

.course-card__icon {
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: rgba(74, 144, 226, 0.1);
    color: var(--primary-color);
    border-radius: 8px;
    margin-bottom: 1.5rem;
}

.course-card__icon i {
    width: 28px;
    height: 28px;
}

.course-card__title {
    font-size: 1.5rem;
    margin-bottom: 0.8rem;
}

.course-card__description {
    color: var(--muted-text-color);
    margin-bottom: 1.5rem;
    flex-grow: 1; /* Pushes the tech list and link down */
}

.course-card__tech-list {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
}

.course-card__tech-item {
    background-color: var(--secondary-bg-color);
    color: var(--muted-text-color);
    padding: 0.3rem 0.8rem;
    border-radius: 4px;
    font-size: 0.85rem;
}

.course-card__link {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 500;
    color: var(--primary-color);
    align-self: flex-start; /* Aligns link to the start of the flex item */
}

.course-card__link i {
    width: 18px;
    height: 18px;
    transition: transform 0.3s ease;
}

.course-card__link:hover i {
    transform: translateX(4px);
}

/* Format Section */
.format {
    padding: 6rem 0;
}

.format__header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 4rem;
}

.format__title {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.format__subtitle {
    font-size: 1.1rem;
    color: var(--muted-text-color);
    line-height: 1.7;
}

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

.format__tab-buttons {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-bottom: 2rem;
}

.format__tab-button {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem 1.5rem;
    border-radius: 8px;
    background-color: transparent;
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--muted-text-color);
    font-size: 1.1rem;
    font-family: var(--font-main);
    cursor: pointer;
    text-align: left;
    transition: background-color 0.3s ease, color 0.3s ease;
}

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

.format__tab-button--active {
    background-color: var(--primary-color);
    color: #fff;
    border-color: var(--primary-color);
}

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

.format__tab-content {
    display: none;
    animation: fadeIn 0.5s ease;
}

.format__tab-content--active {
    display: block;
}

.format__content-title {
    font-size: 1.8rem;
    margin-bottom: 1rem;
}

.format__tab-content p {
    font-size: 1.1rem;
    line-height: 1.7;
    color: var(--muted-text-color);
}

.format__visual img {
    border-radius: 12px;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

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

/* Responsive */
@media (max-width: 992px) {
    .format__main {
        grid-template-columns: 1fr;
    }
    .format__visual {
        order: -1; /* Image appears on top */
    }
}

/* Mentors Section */
.mentors {
    padding: 6rem 0;
    background-color: var(--secondary-bg-color);
}

.mentors__header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 4rem;
}

.mentors__title {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.mentors__subtitle {
    font-size: 1.1rem;
    color: var(--muted-text-color);
    line-height: 1.7;
}

.mentors__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.mentor-card {
    background-color: var(--background-color);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    padding: 2rem;
    text-align: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.mentor-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.2);
}

.mentor-card__photo {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    object-fit: cover;
    margin: 0 auto 1.5rem;
    border: 3px solid var(--primary-color);
}

.mentor-card__name {
    font-size: 1.5rem;
    font-family: var(--font-headings);
    margin-bottom: 0.25rem;
}

.mentor-card__specialization {
    color: var(--primary-color);
    font-size: 1rem;
    margin-bottom: 1rem;
}

.mentor-card__quote {
    color: var(--muted-text-color);
    font-style: italic;
    margin-bottom: 1.5rem;
}

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

.mentor-card__social-link {
    color: var(--muted-text-color);
}

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

.mentor-card__social-link i {
    width: 24px;
    height: 24px;
}

/* Reviews Section */
.reviews {
    padding: 6rem 0;
}

.reviews__header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 4rem;
}

.reviews__title {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.reviews__subtitle {
    font-size: 1.1rem;
    color: var(--muted-text-color);
    line-height: 1.7;
}

.reviews-slider {
    width: 100%;
    padding: 1rem 0 3rem; /* Extra padding at bottom for pagination */
}

.swiper-slide {
    display: flex;
    justify-content: center;
}

.review-card {
    background-color: var(--secondary-bg-color);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    padding: 2rem;
    max-width: 600px; /* Control card width */
    width: 100%;
    display: flex;
    flex-direction: column;
}

.review-card__text {
    font-size: 1.1rem;
    line-height: 1.7;
    margin-bottom: 2rem;
    color: var(--text-color);
    font-style: italic;
    flex-grow: 1;
}

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

.review-card__photo {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    object-fit: cover;
}

.review-card__name {
    font-family: var(--font-headings);
    font-size: 1.1rem;
    margin-bottom: 0.2rem;
}

.review-card__course {
    color: var(--muted-text-color);
    font-size: 0.9rem;
}

/* Swiper custom styles */
.swiper-pagination-bullet {
    background-color: var(--muted-text-color);
}

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

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

@media (max-width: 768px) {
    .swiper-button-next,
    .swiper-button-prev {
        display: none;
    }
}

/* Contact Section */
.contact {
    padding: 6rem 0;
    background-color: var(--secondary-bg-color);
}

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

.contact__title {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
}

.contact__description {
    font-size: 1.1rem;
    color: var(--muted-text-color);
    line-height: 1.7;
    margin-bottom: 2rem;
}

.contact__details {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

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

.contact__detail-item a {
    color: var(--text-color);
}
.contact__detail-item a:hover {
    color: var(--primary-color);
}
.contact__detail-item i {
    color: var(--primary-color);
}

.contact__form-wrapper {
    background-color: var(--background-color);
    padding: 2.5rem;
    border-radius: 12px;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.contact-form__group {
    position: relative;
    margin-bottom: 1.5rem;
}

.contact-form__input {
    width: 100%;
    padding: 0.8rem;
    background-color: var(--secondary-bg-color);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 6px;
    color: var(--text-color);
    font-size: 1rem;
    outline: none;
    transition: border-color 0.3s ease;
}

.contact-form__input:focus {
    border-color: var(--primary-color);
}

.contact-form__label {
    position: absolute;
    top: 0.8rem;
    left: 0.8rem;
    color: var(--muted-text-color);
    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: -0.6rem;
    left: 0.5rem;
    font-size: 0.8rem;
    background-color: var(--background-color);
    padding: 0 0.3rem;
    color: var(--primary-color);
}

.contact-form__captcha {
    margin-bottom: 1.5rem;
}
.contact-form__captcha-label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--muted-text-color);
}
.contact-form__captcha input {
    max-width: 100px;
}

.contact-form__checkbox-group {
    display: flex;
    align-items: flex-start;
    gap: 0.8rem;
    margin-bottom: 2rem;
}
.contact-form__checkbox {
    margin-top: 5px;
    accent-color: var(--primary-color);
}
.contact-form__checkbox-label {
    font-size: 0.9rem;
    color: var(--muted-text-color);
}

.contact-form__button {
    width: 100%;
    padding: 1rem;
    background-color: var(--primary-color);
    color: #fff;
    border: none;
    border-radius: 6px;
    font-size: 1.1rem;
    font-weight: 500;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

.contact-form__button:hover {
    background-color: var(--primary-hover-color);
}
.contact-form__button:disabled {
    background-color: #555;
    cursor: not-allowed;
}

.contact-form__message {
    margin-top: 1rem;
    padding: 1rem;
    border-radius: 6px;
    text-align: center;
    display: none; /* Initially hidden */
}
.contact-form__message--success {
    background-color: rgba(39, 201, 63, 0.2);
    color: #27c93f;
}
.contact-form__message--error {
    background-color: rgba(255, 95, 86, 0.2);
    color: #ff5f56;
}

@media (max-width: 992px) {
    .contact__container {
        grid-template-columns: 1fr;
    }
}

/* Cookie Pop-up */
.cookie-popup {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background-color: var(--secondary-bg-color);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding: 1.5rem 0;
    z-index: 200;
    transform: translateY(0);
    transition: transform 0.5s ease-in-out;
}

.cookie-popup--hidden {
    transform: translateY(200%);
}

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

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

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

.cookie-popup__button {
    background-color: var(--primary-color);
    color: #fff;
    border: none;
    padding: 0.8rem 1.5rem;
    border-radius: 6px;
    cursor: pointer;
    white-space: nowrap;
    transition: background-color 0.3s ease;
}

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

/* Styles for Policy Pages (privacy.html, terms.html etc.) */
.pages {
    padding: 4rem 0;
}

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

.pages h1 {
    font-size: 2.8rem;
    margin-bottom: 2rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    padding-bottom: 1rem;
}

.pages h2 {
    font-size: 2rem;
    margin-top: 3rem;
    margin-bottom: 1.5rem;
}

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

.pages ul, .pages ol {
    margin-bottom: 1.5rem;
    padding-left: 2rem;
}

.pages li {
    margin-bottom: 0.8rem;
    font-size: 1.1rem;
    color: var(--muted-text-color);
}

.pages a {
    text-decoration: underline;
}

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

/* Responsive for cookie popup */
@media (max-width: 768px) {
    .cookie-popup__container {
        flex-direction: column;
        text-align: center;
    }
}