:root {
    --color-bg: #0f1115;
    --color-surface: #1a1d23;
    --color-primary: #00f5d4;
    /* Electric Mint */
    --color-text: #ffffff;
    --color-text-dim: #a0a6b1;
    --container-width: 1240px;
    --transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--color-bg);
    color: var(--color-text);
    line-height: 1.6;
    overflow-x: hidden;
}

h1,
h2,
h3,
h4 {
    font-family: 'Syne', sans-serif;
    line-height: 1.1;
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
}

ul {
    list-style: none;
}

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

.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 24px;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    padding: 14px 28px;
    border-radius: 50px;
    font-weight: 600;
    font-size: 15px;
    cursor: pointer;
    transition: var(--transition);
}

.btn--secondary {
    background: transparent;
    border: 1px solid var(--color-primary);
    color: var(--color-primary);
}

.btn--secondary:hover {
    background: var(--color-primary);
    color: var(--color-bg);
    box-shadow: 0 0 20px rgba(0, 245, 212, 0.3);
}

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: 20px 0;
    background: rgba(15, 17, 21, 0.8);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-family: 'Syne', sans-serif;
    font-size: 22px;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: -1px;
}

.logo__icon {
    width: 32px;
    height: 32px;
    background: var(--color-primary);
    border-radius: 8px;
    position: relative;
    transform: rotate(-15deg);
}

.nav__list {
    display: flex;
    gap: 32px;
}

.nav__link {
    font-size: 14px;
    font-weight: 500;
    color: var(--color-text-dim);
}

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

.burger {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
}

/* Footer */
.footer {
    padding: 100px 0 40px;
    background: var(--color-surface);
    margin-top: 100px;
}

.footer__grid {
    display: grid;
    grid-template-columns: 1.5fr 0.8fr 0.8fr 1.2fr;
    gap: 60px;
    padding-bottom: 60px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.footer__description {
    margin-top: 24px;
    color: var(--color-text-dim);
    font-size: 15px;
}

.footer__title {
    margin-bottom: 24px;
    font-size: 18px;
    color: var(--color-primary);
}

.footer__list li {
    margin-bottom: 12px;
}

.footer__list a {
    color: var(--color-text-dim);
    font-size: 14px;
}

.footer__list a:hover {
    color: var(--color-text);
    padding-left: 5px;
}

.footer__contacts li {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
    color: var(--color-text-dim);
    font-size: 14px;
}

.footer__icon {
    width: 18px;
    color: var(--color-primary);
}

.footer__bottom {
    padding-top: 40px;
    text-align: center;
    font-size: 13px;
    color: rgba(255, 255, 255, 0.3);
}

/* Responsive */
@media (max-width: 992px) {
    .footer__grid {
        grid-template-columns: 1fr 1fr;
    }

    .nav {
        display: none;
        /* For simplicity in the first step */
    }
}

@media (max-width: 576px) {
    .footer__grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
}
.hero {
    position: relative;
    padding: 180px 0 100px;
    overflow: hidden;
}

.hero__container {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    align-items: center;
    gap: 60px;
}

.hero__badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: rgba(0, 245, 212, 0.1);
    border: 1px solid rgba(0, 245, 212, 0.2);
    border-radius: 100px;
    font-size: 13px;
    font-weight: 600;
    color: var(--color-primary);
    margin-bottom: 24px;
}

.hero__badge-dot {
    width: 6px;
    height: 6px;
    background: var(--color-primary);
    border-radius: 50%;
    box-shadow: 0 0 10px var(--color-primary);
    animation: pulse 2s infinite;
}

.hero__title {
    font-size: clamp(40px, 5vw, 72px);
    margin-bottom: 24px;
    font-weight: 800;
}

.text-gradient {
    background: linear-gradient(90deg, var(--color-primary), #00d2ff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero__text {
    font-size: 18px;
    color: var(--color-text-dim);
    margin-bottom: 40px;
    max-width: 540px;
}

.hero__actions {
    display: flex;
    gap: 20px;
}

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

.btn--primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(0, 245, 212, 0.4);
}

.btn--outline {
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.btn--outline:hover {
    background: rgba(255, 255, 255, 0.05);
}

/* Visual Part */
.hero__visual {
    position: relative;
}

.hero__image-wrapper {
    position: relative;
    z-index: 2;
    border-radius: 24px;
    overflow: hidden;
    background: var(--color-surface);
    aspect-ratio: 4/5;
}

.hero__image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.8;
}

.hero__floating-card {
    position: absolute;
    bottom: 30px;
    left: -20px;
    background: #fff;
    color: #000;
    padding: 16px 24px;
    border-radius: 16px;
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: 700;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.hero__card-icon {
    color: #f59e0b;
}

.hero__circle {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    z-index: 1;
}

.hero__circle--1 {
    width: 300px;
    height: 300px;
    background: rgba(0, 245, 212, 0.15);
    top: -50px;
    right: -50px;
}

.hero__circle--2 {
    width: 200px;
    height: 200px;
    background: rgba(0, 210, 255, 0.1);
    bottom: -30px;
    left: -30px;
}

@keyframes pulse {
    0% {
        transform: scale(1);
        opacity: 1;
    }

    50% {
        transform: scale(1.5);
        opacity: 0.5;
    }

    100% {
        transform: scale(1);
        opacity: 1;
    }
}

@media (max-width: 992px) {
    .hero__container {
        grid-template-columns: 1fr;
        text-align: center;
    }

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

    .hero__text {
        margin-left: auto;
        margin-right: auto;
    }

    .hero__actions {
        justify-content: center;
    }

    .hero__floating-card {
        left: 20px;
    }
}
/* Section Headers */
.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-title {
    font-size: clamp(32px, 4vw, 48px);
    margin-bottom: 16px;
}

.section-subtitle {
    color: var(--color-text-dim);
    font-size: 18px;
}

/* WebGL Canvas */
#canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    pointer-events: none;
    z-index: 1;
}

/* Courses Grid */
.courses {
    position: relative;
    padding: 100px 0;
    z-index: 2;
}

.courses__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
}

.course-card {
    background: var(--color-surface);
    border-radius: 24px;
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.05);
    transition: var(--transition);
}

.course-card:hover {
    transform: translateY(-10px);
    border-color: var(--color-primary);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.course-card__visual {
    height: 240px;
    width: 100%;
    position: relative;
    background: #222;
}

.course-card__visual img {
    display: none;
    /* CurtainsJS заберет src */
}

.course-card__content {
    padding: 30px;
}

.course-card__tag {
    font-size: 12px;
    text-transform: uppercase;
    color: var(--color-primary);
    letter-spacing: 2px;
    display: block;
    margin-bottom: 12px;
}

.course-card__title {
    font-size: 24px;
    margin-bottom: 12px;
}

.course-card__text {
    color: var(--color-text-dim);
    margin-bottom: 24px;
    font-size: 15px;
}

.course-card__link {
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 600;
    color: var(--color-primary);
}

/* Features Section */
.features {
    padding: 100px 0;
    background: var(--color-bg);
}

.features__grid {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 100px;
    align-items: center;
}

.features__descr {
    color: var(--color-text-dim);
    margin: 24px 0 40px;
    font-size: 18px;
}

.features__stats {
    display: flex;
    gap: 40px;
}

.stat-item__num {
    display: block;
    font-size: 36px;
    font-family: 'Syne', sans-serif;
    color: var(--color-primary);
}

.stat-item__label {
    font-size: 14px;
    color: var(--color-text-dim);
}

.features__list {
    display: grid;
    gap: 30px;
}

.feature-item {
    display: flex;
    gap: 24px;
    padding: 30px;
    background: var(--color-surface);
    border-radius: 20px;
    transition: var(--transition);
}

.feature-item:hover {
    background: rgba(0, 245, 212, 0.05);
}

.feature-item__icon {
    width: 54px;
    height: 54px;
    background: rgba(0, 245, 212, 0.1);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-primary);
    flex-shrink: 0;
}

.feature-item__content h4 {
    font-size: 18px;
    margin-bottom: 8px;
}

.feature-item__content p {
    color: var(--color-text-dim);
    font-size: 14px;
}

@media (max-width: 992px) {
    .features__grid {
        grid-template-columns: 1fr;
        gap: 60px;
    }

    .courses__grid {
        grid-template-columns: 1fr;
    }
}
.course-card__visual::after {
    content: '';
    position: absolute;
    top: 0; left: -100%;
    width: 50%; height: 100%;
    background: linear-gradient(to right, transparent, rgba(255,255,255,0.2), transparent);
    transform: skewX(-25deg);
    transition: 0.75s;
}

.course-card:hover .course-card__visual::after {
    left: 125%;
}/* Обновленные карточки (Vanilla CSS) */
.course-card__visual {
    height: 240px;
    width: 100%;
    position: relative;
    background: #222;
    overflow: hidden;
}

.course-card__visual img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Эффект стеклянного блеска при наведении */
.course-card__visual::after {
    content: '';
    position: absolute;
    top: 0;
    left: -150%;
    width: 50%;
    height: 100%;
    background: linear-gradient(to right,
            transparent,
            rgba(255, 255, 255, 0.1),
            transparent);
    transform: skewX(-25deg);
    transition: 0.75s;
}

.course-card:hover .course-card__visual img {
    transform: scale(1.1);
}

.course-card:hover .course-card__visual::after {
    left: 150%;
}

/* Секция FAQ */
.faq {
    padding: 100px 0;
    background: var(--color-surface);
}

.faq__container {
    max-width: 800px;
    margin: 0 auto;
}

.faq__list {
    margin-top: 40px;
}

.faq__item {
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    padding: 24px 0;
}

.faq__question {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: none;
    border: none;
    color: var(--color-text);
    font-size: 20px;
    font-family: 'Syne', sans-serif;
    font-weight: 700;
    text-align: left;
    cursor: pointer;
    transition: var(--transition);
}

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

.faq__icon {
    width: 20px;
    height: 20px;
    transition: transform 0.3s ease;
}

.faq__item.active .faq__icon {
    transform: rotate(180deg);
}

.faq__answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease-out;
}

.faq__answer p {
    padding-top: 16px;
    color: var(--color-text-dim);
    font-size: 15px;
    line-height: 1.7;
}

.faq__item.active .faq__answer {
    max-height: 200px;
    /* Достаточно для текста */
}
.reviews {
    padding: 100px 0;
    background: var(--color-bg);
}

.reviews__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 30px;
    margin-top: 50px;
}

.review-card {
    background: var(--color-surface);
    padding: 40px;
    border-radius: 30px;
    border: 1px solid rgba(255, 255, 255, 0.03);
    position: relative;
    transition: var(--transition);
}

.review-card:hover {
    border-color: var(--color-primary);
    transform: translateY(-5px);
}

.review-card--featured {
    background: linear-gradient(145deg, var(--color-surface) 0%, #1e2229 100%);
    border: 1px solid rgba(0, 245, 212, 0.1);
}

.review-card__header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 24px;
}

.review-card__user {
    display: flex;
    align-items: center;
    gap: 16px;
}

.review-card__avatar {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    object-fit: cover;
    background: #333;
}

.review-card__name {
    font-size: 18px;
    font-weight: 700;
}

.review-card__role {
    font-size: 13px;
    color: var(--color-text-dim);
}

.review-card__stars {
    display: flex;
    gap: 4px;
    color: #ffb800;
}

.review-card__stars svg {
    width: 14px;
    height: 14px;
    fill: currentColor;
}

.review-card__quote-icon {
    color: var(--color-primary);
    opacity: 0.3;
}

.review-card__text {
    font-size: 16px;
    line-height: 1.8;
    color: var(--color-text-dim);
}

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

@media (max-width: 768px) {
    .reviews__grid {
        grid-template-columns: 1fr;
    }
}
/* Mobile Nav */
@media (max-width: 992px) {
    .burger {
        display: block;
        z-index: 1001;
        position: relative;
        width: 30px;
        height: 20px;
    }

    .burger span,
    .burger::before,
    .burger::after {
        content: '';
        position: absolute;
        left: 0;
        width: 100%;
        height: 2px;
        background: var(--color-primary);
        transition: 0.3s;
    }

    .burger::before {
        top: 0;
    }

    .burger::after {
        bottom: 0;
    }

    .burger span {
        top: 9px;
    }

    .burger.active span {
        opacity: 0;
    }

    .burger.active::before {
        transform: rotate(45deg);
        top: 9px;
    }

    .burger.active::after {
        transform: rotate(-45deg);
        bottom: 9px;
    }

    .nav {
        position: fixed;
        top: 0;
        right: -100%;
        width: 100%;
        height: 100vh;
        background: var(--color-bg);
        display: flex;
        align-items: center;
        justify-content: center;
        transition: 0.5s cubic-bezier(0.16, 1, 0.3, 1);
        z-index: 1000;
    }

    .nav.active {
        right: 0;
    }

    .nav__list {
        flex-direction: column;
        text-align: center;
        gap: 40px;
    }

    .nav__link {
        font-size: 24px;
        color: var(--color-text);
    }
}

/* Contact Form */
.contact {
    padding: 120px 0;
    background: var(--color-bg);
}

.contact__container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.contact__item {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-top: 20px;
    color: var(--color-text-dim);
}

.contact__icon {
    color: var(--color-primary);
}

.form {
    background: var(--color-surface);
    padding: 50px;
    border-radius: 30px;
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.form__group {
    margin-bottom: 20px;
}

.form__input {
    width: 100%;
    padding: 16px 20px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    color: white;
    outline: none;
    transition: 0.3s;
}

.form__input:focus {
    border-color: var(--color-primary);
    background: rgba(0, 245, 212, 0.05);
}

.form__captcha {
    margin: 25px 0;
    padding: 20px;
    background: rgba(0, 245, 212, 0.05);
    border-radius: 12px;
}

.form__label {
    display: block;
    margin-bottom: 10px;
    font-size: 14px;
    color: var(--color-text-dim);
}

.form__checkbox-label {
    display: flex;
    gap: 10px;
    font-size: 13px;
    color: var(--color-text-dim);
    margin: 20px 0;
    cursor: pointer;
}

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

.form__submit {
    width: 100%;
    justify-content: center;
}

.form__message {
    margin-top: 20px;
    padding: 15px;
    border-radius: 10px;
    display: none;
    text-align: center;
    font-weight: 600;
}

.form__message.success {
    display: block;
    background: rgba(0, 245, 212, 0.2);
    color: var(--color-primary);
}

.form__message.error {
    display: block;
    background: rgba(245, 0, 80, 0.2);
    color: #ff4d4d;
}

/* Cookie Popup */
.cookie-popup {
    position: fixed;
    bottom: -100px;
    left: 20px;
    right: 20px;
    max-width: 500px;
    background: var(--color-surface);
    padding: 25px;
    border-radius: 20px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.5);
    border: 1px solid rgba(255, 255, 255, 0.1);
    z-index: 2000;
    transition: 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.cookie-popup.active {
    bottom: 20px;
}

.cookie-popup__content {
    display: flex;
    align-items: center;
    gap: 20px;
}

.cookie-popup p {
    font-size: 14px;
    line-height: 1.4;
    color: var(--color-text-dim);
}

.btn--small {
    padding: 10px 20px;
    font-size: 13px;
}

/* Legal Pages Styling */
main section.pages {
    padding: 180px 0 100px;
    line-height: 1.8;
    color: var(--color-text-dim);
}

.pages h1 {
    color: var(--color-text);
    margin-bottom: 40px;
    font-size: 29px;
}

.pages h2 {
    color: var(--color-primary);
    margin: 30px 0 15px;
}

.pages ul {
    margin: 20px 0;
    padding-left: 20px;
    list-style: disc;
}

@media (max-width: 768px) {
    .contact__container {
        grid-template-columns: 1fr;
    }

    .form {
        padding: 30px;
    }
}
/* Intro text on legal/info pages */
.pages__intro {
    font-size: 18px;
    max-width: 800px;
    margin-bottom: 60px;
}

/* Contact Cards Grid */
.contact-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin: 60px 0;
}

.contact-card {
    background: var(--color-surface);
    padding: 40px;
    border-radius: 24px;
    border: 1px solid rgba(255, 255, 255, 0.05);
    transition: var(--transition);
}

.contact-card:hover {
    border-color: var(--color-primary);
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.contact-card__icon {
    width: 60px;
    height: 60px;
    background: rgba(0, 245, 212, 0.1);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 24px;
    color: var(--color-primary);
}

.contact-card h2 {
    font-size: 24px;
    margin-bottom: 16px;
    color: var(--color-text);
}

.contact-card p {
    font-size: 15px;
    color: var(--color-text-dim);
    margin-bottom: 24px;
    line-height: 1.6;
}

.contact-link {
    font-weight: 700;
    color: var(--color-primary);
    font-size: 18px;
    word-break: break-all;
}

.contact-address {
    font-style: normal;
    font-weight: 600;
    color: var(--color-text);
    line-height: 1.8;
}

.contact-extra {
    margin-top: 60px;
    padding: 30px;
    background: rgba(255, 255, 255, 0.02);
    border-radius: 16px;
    text-align: center;
}

.contact-extra a {
    color: var(--color-primary);
    text-decoration: underline;
    font-weight: 600;
}

@media (max-width: 768px) {
    .contact-cards {
        grid-template-columns: 1fr;
    }
}