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

/* --- CSS Variables --- */
:root {
    --color-background: #121212;
    --color-surface: #1E1E1E;
    --color-primary: #8A2BE2; /* Яркий фиолетовый */
    --color-primary-hover: #9932CC;
    --color-text-primary: #EAEAEA;
    --color-text-secondary: #A0A0A0;
    --color-border: #333333;

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

    --container-width: 1200px;
    --container-padding: 1.5rem;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family-body);
    font-size: 16px;
    line-height: 1.6;
    color: var(--color-text-primary);
    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-primary);
    font-weight: 700;
}

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;
}

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

/* --- Header --- */
.header {
    padding: 1.5rem 0;
    border-bottom: 1px solid var(--color-border);
    position: sticky;
    top: 0;
    background-color: rgba(18, 18, 18, 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-family-headings);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-text-primary);
}

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

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

.nav__link {
    font-size: 1rem;
    color: var(--color-text-secondary);
    font-weight: 500;
    padding: 0.5rem 0;
    position: relative;
}

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

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

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

.nav__link--button {
    background-color: var(--color-primary);
    color: var(--color-text-primary);
    padding: 0.6rem 1.5rem;
    border-radius: 5px;
    transition: background-color 0.3s ease;
}

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

.nav__link--button::after {
    display: none;
}

.header__burger-menu {
    display: none; /* Скрыт по умолчанию */
    background: none;
    border: none;
    color: var(--color-text-primary);
    cursor: pointer;
}

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

.footer__container {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: 3rem;
}

.footer__logo {
    font-family: var(--font-family-headings);
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--color-text-primary);
    display: inline-block;
    margin-bottom: 1rem;
}

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

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

.footer__title {
    font-size: 1.1rem;
    margin-bottom: 1rem;
    font-weight: 500;
}

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

.footer__link {
    color: var(--color-text-secondary);
    font-size: 0.95rem;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

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

.footer__link--static {
    color: var(--color-text-secondary);
    cursor: default;
}

.footer__icon {
    width: 18px;
    height: 18px;
    flex-shrink: 0;
}

/* --- Адаптивность --- */

/* Планшеты и мобильные */
@media (max-width: 992px) {
    .footer__container {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .header__nav {
        /* Логика для мобильного меню будет добавлена позже в JS */
        display: none;
    }

    .header__burger-menu {
        display: block;
    }
}

@media (max-width: 576px) {
    .footer__container {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .footer__column {
        align-items: center;
    }

    .footer__link {
       justify-content: center;
    }
}

/* --- Button --- */
.button {
    display: inline-block;
    padding: 0.9rem 2rem;
    font-family: var(--font-family-headings);
    font-size: 1rem;
    font-weight: 500;
    color: var(--color-text-primary);
    background-color: var(--color-primary);
    border: 1px solid var(--color-primary);
    border-radius: 5px;
    text-align: center;
    cursor: pointer;
    transition: background-color 0.3s ease, color 0.3s ease, transform 0.3s ease;
}

.button:hover {
    background-color: var(--color-primary-hover);
    border-color: var(--color-primary-hover);
    transform: translateY(-3px);
    box-shadow: 0 4px 15px rgba(138, 43, 226, 0.3);
}

/* --- Hero Section --- */
.hero {
    position: relative;
    min-height: 90vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    overflow: hidden;
    padding: 6rem 0;
}

.hero__canvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

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

.hero__content {
    max-width: 800px;
    margin: 0 auto;
    /* Анимация появления */
    opacity: 0;
    transform: translateY(20px);
    animation: contentFadeIn 1s ease 0.5s forwards;
}

@keyframes contentFadeIn {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero__title {
    font-size: 3.5rem;
    line-height: 1.2;
    margin-bottom: 1.5rem;
    letter-spacing: -1px;
}

.hero__subtitle {
    font-size: 1.25rem;
    color: var(--color-text-secondary);
    max-width: 650px;
    margin: 0 auto 2.5rem;
    line-height: 1.7;
}

/* --- Адаптивность для Hero --- */
@media (max-width: 992px) {
    .hero {
        min-height: 80vh;
    }
    .hero__title {
        font-size: 2.8rem;
    }
    .hero__subtitle {
        font-size: 1.1rem;
    }
}

@media (max-width: 576px) {
    .hero {
        padding: 4rem 0;
        min-height: 70vh;
    }
    .hero__title {
        font-size: 2rem;
    }
    .hero__subtitle {
        font-size: 1rem;
    }
    .button {
        padding: 0.8rem 1.5rem;
        font-size: 0.9rem;
    }
}

/* --- Section Header --- */
.section-header {
    text-align: center;
    max-width: 750px;
    margin: 0 auto 4rem;
}

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

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

/* --- Directions Section --- */
.directions {
    padding: 6rem 0;
    background-color: var(--color-background);
}

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

.direction-card {
    background-color: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: 8px;
    padding: 2.5rem 2rem;
    transition: transform 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}

.direction-card:hover {
    transform: translateY(-8px);
    border-color: var(--color-primary);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.direction-card__icon {
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: rgba(138, 43, 226, 0.1);
    border-radius: 50%;
    margin-bottom: 1.5rem;
}

.direction-card__icon i {
    width: 24px;
    height: 24px;
    color: var(--color-primary);
}

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

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

/* --- Адаптивность для Directions --- */
@media (max-width: 768px) {
    .directions {
        padding: 4rem 0;
    }
    .section-header__title {
        font-size: 2rem;
    }
    .section-header__subtitle {
        font-size: 1rem;
    }
}

@media (max-width: 576px) {
    .directions__grid {
       grid-template-columns: 1fr;
    }
}

/* --- Process Section --- */
.process {
    padding: 6rem 0;
    background-color: var(--color-surface);
}

.process__timeline {
    position: relative;
    max-width: 900px;
    margin: 2rem auto 0;
}

/* --- Стили для мобильных устройств (mobile-first) --- */
.process__timeline::before {
    content: '';
    position: absolute;
    top: 0;
    left: 15px;
    height: 100%;
    width: 2px;
    background-color: var(--color-border);
}

.timeline-item {
    position: relative;
    margin-bottom: 3rem;
    padding-left: 45px;
}

.timeline-item:last-child {
    margin-bottom: 0;
}

.timeline-item__point {
    position: absolute;
    left: 0;
    top: 0;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--color-primary);
    color: var(--color-text-primary);
    border-radius: 50%;
    font-weight: 700;
    font-family: var(--font-family-headings);
    transform: translateX(-50%);
    border: 3px solid var(--color-surface);
}

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

.timeline-item__title {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
}

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

/* --- Стили для десктопа (планшеты и больше) --- */
@media (min-width: 768px) {
    .process__timeline::before {
        left: 50%;
        transform: translateX(-50%);
    }

    .timeline-item {
        width: 50%;
        padding-left: 0;
        margin-bottom: 0; /* Убираем нижний отступ, т.к. позиционирование будет другим */
    }

    /* Элементы слева */
    .timeline-item:nth-child(odd) {
        left: 0;
        padding-right: 40px;
        text-align: right;
        margin-bottom: 4rem; /* Добавляем отступ для "шахматного" порядка */
    }

    /* Элементы справа */
    .timeline-item:nth-child(even) {
        left: 50%;
        padding-left: 40px;
    }
    
    .timeline-item__point {
        left: 50%;
        transform: translateX(-50%);
    }
}

/* --- Адаптивность для Process --- */
@media (max-width: 768px) {
    .process {
        padding: 4rem 0;
    }
}


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

.mentors__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.mentor-card {
    background-color: var(--color-surface);
    border-radius: 8px;
    overflow: hidden;
    border: 1px solid var(--color-border);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.mentor-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.mentor-card__image-wrapper {
    aspect-ratio: 1 / 1;
    overflow: hidden;
}

.mentor-card__image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s ease;
}

.mentor-card:hover .mentor-card__image {
    transform: scale(1.05);
}

.mentor-card__content {
    padding: 1.5rem;
}

.mentor-card__name {
    font-size: 1.4rem;
    margin-bottom: 0.25rem;
}

.mentor-card__title {
    color: var(--color-primary);
    font-size: 0.9rem;
    font-weight: 500;
    margin-bottom: 1rem;
}

.mentor-card__quote {
    color: var(--color-text-secondary);
    font-size: 0.95rem;
    line-height: 1.6;
    font-style: italic;
}

/* --- Адаптивность для Mentors --- */
@media (max-width: 768px) {
    .mentors {
        padding: 4rem 0;
    }
}

/* --- Reviews Section --- */
.reviews {
    padding: 6rem 0;
    background-color: var(--color-surface);
}

.reviews__slider {
    padding: 2rem 0 4rem; /* Добавляем отступ снизу для пагинации */
    max-width: 900px;
    margin: 0 auto;
}

.review-card {
    background-color: var(--color-background);
    border: 1px solid var(--color-border);
    border-radius: 8px;
    padding: 2.5rem;
    position: relative;
    height: 100%;
}

.review-card__quote-icon {
    position: absolute;
    top: 1.5rem;
    left: 1.5rem;
    width: 48px;
    height: 48px;
    color: var(--color-border);
    opacity: 0.8;
}

.review-card__text {
    font-size: 1.1rem;
    line-height: 1.7;
    margin-bottom: 2rem;
    padding-left: 1rem;
    border-left: 2px solid var(--color-primary);
}

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

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

.review-card__author-name {
    font-size: 1.1rem;
    margin: 0;
}

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

/* Swiper Customization */
:root {
    --swiper-theme-color: var(--color-primary);
    --swiper-navigation-color: var(--color-primary);
}

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

.swiper-button-next,
.swiper-button-prev {
    transition: transform 0.2s ease;
}

.swiper-button-next:hover,
.swiper-button-prev:hover {
    transform: scale(1.1);
}

/* Адаптивность для Reviews */
@media (max-width: 768px) {
    .reviews {
        padding: 4rem 0;
    }
    .swiper-button-next,
    .swiper-button-prev {
        display: none;
    }
}

/* --- Contact Section --- */
.contact {
    padding: 6rem 0;
}

.contact__wrapper {
    max-width: 600px;
    margin: 0 auto;
    background-color: var(--color-surface);
    padding: 3rem;
    border-radius: 8px;
    border: 1px solid var(--color-border);
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.form-group {
    position: relative;
}

.form-group__label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    font-size: 0.9rem;
    color: var(--color-text-secondary);
}

.form-group__input {
    width: 100%;
    padding: 0.8rem 1rem;
    background-color: var(--color-background);
    border: 1px solid var(--color-border);
    border-radius: 5px;
    color: var(--color-text-primary);
    font-size: 1rem;
    font-family: var(--font-family-body);
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.form-group__input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(138, 43, 226, 0.2);
}

.form-group__input.is-invalid {
    border-color: #e74c3c;
}

.form-group__error-message {
    color: #e74c3c;
    font-size: 0.85rem;
    margin-top: 0.25rem;
    display: none;
}

.form-group__input.is-invalid + .form-group__error-message,
.form-group__checkbox-input.is-invalid ~ .form-group__error-message {
    display: block;
}


/* Checkbox */
.form-group--checkbox {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    position: relative;
    padding-left: 1.75rem; /* Space for custom checkbox */
}

.form-group__checkbox-input {
    position: absolute;
    opacity: 0;
    cursor: pointer;
    height: 0;
    width: 0;
}

.form-group__checkbox-label {
    font-size: 0.9rem;
    color: var(--color-text-secondary);
    line-height: 1.5;
    position: relative;
    cursor: pointer;
}

.form-group__checkbox-label::before {
    content: '';
    position: absolute;
    left: -1.75rem;
    top: 2px;
    width: 18px;
    height: 18px;
    border: 1px solid var(--color-border);
    background-color: var(--color-background);
    border-radius: 3px;
    transition: all 0.2s ease;
}
.form-group__checkbox-label::after {
    content: '\2713'; /* Checkmark character */
    position: absolute;
    left: -1.5rem;
    top: 2px;
    font-size: 14px;
    color: var(--color-text-primary);
    opacity: 0;
    transition: opacity 0.2s ease;
}

.form-group__checkbox-input:checked ~ .form-group__checkbox-label::before {
    background-color: var(--color-primary);
    border-color: var(--color-primary);
}
.form-group__checkbox-input:checked ~ .form-group__checkbox-label::after {
    opacity: 1;
}

.contact-form__button {
    margin-top: 1rem;
    width: 100%;
}

/* Success Message */
.form-success-message {
    display: none; /* Hidden by default */
    text-align: center;
    padding: 2rem;
}

.form-success-message i {
    color: #2ecc71;
    width: 60px;
    height: 60px;
    margin-bottom: 1rem;
}

.form-success-message h3 {
    font-size: 1.8rem;
    margin-bottom: 0.5rem;
}

.form-success-message p {
    color: var(--color-text-secondary);
}

/* --- Cookie Popup --- */
.cookie-popup {
    position: fixed;
    bottom: -100%; /* Initially hidden */
    left: 50%;
    transform: translateX(-50%);
    max-width: 500px;
    width: calc(100% - 2rem);
    background-color: var(--color-surface);
    color: var(--color-text-secondary);
    padding: 1.5rem;
    border-radius: 8px;
    border: 1px solid var(--color-border);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1.5rem;
    z-index: 200;
    transition: bottom 0.5s ease-in-out;
}

.cookie-popup.is-visible {
    bottom: 1rem;
}

.cookie-popup__text {
    font-size: 0.9rem;
}

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

.cookie-popup__button {
    padding: 0.6rem 1.2rem;
    flex-shrink: 0;
}

@media (max-width: 576px) {
    .cookie-popup {
        flex-direction: column;
        text-align: center;
        gap: 1rem;
    }
}


/* --- Policy Pages Styles --- */
.pages {
    padding: 5rem 0;
}

.pages .container {
    max-width: 800px;
}

.pages h1, .pages h2 {
    margin-bottom: 1.5rem;
}

.pages h1 {
    font-size: 2.8rem;
    border-bottom: 1px solid var(--color-border);
    padding-bottom: 1rem;
    margin-bottom: 2rem;
}

.pages h2 {
    font-size: 1.8rem;
    margin-top: 3rem;
}

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

.pages ul {
    list-style: disc;
    padding-left: 25px;
    margin-bottom: 1.5rem;
}

.pages li {
    color: var(--color-text-secondary);
    margin-bottom: 0.75rem;
}

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

.pages a {
    text-decoration: underline;
}