/* ===== Navigation ===== */
.nav__list {
    list-style: none;
    display: flex;
    gap: 1.5rem;
    flex-wrap: wrap;
    margin: 0;
    padding: 0;
}

.nav__list a {
    text-decoration: none;
    color: var(--clr-black);
    font-weight: 500;
    font-size: 1.3rem;
    transition: color 0.3s ease;
}

.nav__list a:hover {
    opacity: 0.8;
 }

.hamburgerMenu {
    display: none;
    font-size: 1.5rem;
    background: none;
    border: none;
    cursor: pointer;
    color: var(--clr-black);
}

/* ===== Buttons ===== */
.btn {
    padding: 0.6rem 1.2rem;
    border: none;
    border-radius: var(--border-radius-md);
    cursor: pointer;
    background: var(--clr-yellow);
    font-size: 1.25rem;
    font-family: var(--font-heading);
    font-weight: 700;
    transition: transform 0.3s ease;
    text-align: center;
    color: var(--clr-black);
    display: inline-block;
}

    .btn:hover {
        transform: scale(1.05);
    }

.header__btn {
    background: var(--clr-yellow);
    color: var(--clr-black);
}

.main__btn {
    padding: 1rem 2rem;
}

.cta-btn {
    padding: 0.6rem 1.2rem;
}

.form-btn {
    width: 100%;
    padding: clamp(0.75rem, 1.5vw, 1rem) 0;
    font-size: clamp(0.9rem, 1.5vw, 1rem);
}

/* ===== Main Section Components ===== */
.main__title {
    font-size: clamp(2.5rem, 7vw, 7rem);
    margin-top: 0;
    color: var(--clr-white);
    margin-bottom: 1rem;
}

.main__subtitle {
    font-size: clamp(1.5rem, 3vw, 2.5rem);
    color: var(--clr-white);
    margin-bottom: 1.5rem;
}

.main__image {
    position: relative;
}

    .main__image img {
        position: absolute;
        bottom: -3rem;
        right: 0;
        max-width: 100%;
        height: auto;
    }

.main__star {
    color: var(--clr-yellow);
    font-size: 2rem;
    margin-right: 0.5rem;
    display: inline-block;
    margin-bottom: 3rem;
}

.main__subtitle-wrapper {
    display: flex;
    align-items: center;
}

.main__underline {
    width: 60%;
    max-width: 350px;
    height: 5px;
    background-color: var(--clr-yellow);
    margin-bottom: 4rem;
    transform: rotate(-5deg);
    position: relative;
    left: 20%;
}

/* ===== Why Us Cards ===== */
.why-us__subtitle {
    font-size: clamp(1.25rem, 3vw, 2rem);
    margin-bottom: 3rem;
    color: var(--clr-black);
    text-align: center;
    max-width: 80%;
    margin-left: auto;
    margin-right: auto;
}

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

.why-us__card {
    font-size: clamp(1.2rem, 2vw, 1.8rem);
    position: relative;
    padding: 1.5rem;
    border-radius: var(--border-radius-md);
    text-align: left;
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    border: 3px solid;
    background-color: transparent;
    overflow: visible;
    min-height: 160px;
}

.why-us__image {
    position: absolute;
    max-width: 40%;
    height: auto;
    z-index: 2;
    bottom: 0;
    right: 0;
}

.why-us__tag {
    display: inline-block;
    font-family: var(--font-heading);
    font-size: clamp(1rem, 1.5vw, 1.3rem);
    padding: 0.3rem 0.75rem;
    border-radius: var(--border-radius-md);
    color: inherit;
    position: relative;
    z-index: 2;
    width: fit-content;
    white-space: normal;
}

.why-us__card p {
    position: relative;
    z-index: 2;
    margin-bottom: 1rem;
    max-width: 70%;
}

/* Card variants */
.why-us__card--interest,
.why-us__card--school,
.why-us__card--exam,
.why-us__card--benefit {
    border-color: var(--c);
}

.why-us__card--interest {
    --c: var(--clr-red);
    background-color: rgba(243,96,109,0.25);
}

.why-us__card--school {
    --c: var(--clr-blue);
    background-color: rgba(126,215,245,0.25);
}

.why-us__card--exam {
    --c: var(--clr-purple);
    background-color: rgba(117,68,239,0.25);
}

.why-us__card--benefit {
    --c: var(--clr-pink);
    background-color: rgba(255,211,241,0.25);
}

.why-us__card--interest .why-us__tag,
.why-us__card--exam .why-us__tag {
    color: var(--clr-white);
    background-color: var(--c);
}

.why-us__card--school .why-us__tag,
.why-us__card--benefit .why-us__tag {
    color: var(--clr-black);
    background-color: var(--c);
}

.why-us__card--interest .why-us__image {
    max-width: 60%;
    right: -25px;
    bottom: -45px;
}

.why-us__card--school .why-us__image {
    max-width: 40%;
    right: -5px;
    bottom: -5px;
}

/* ===== CTA Section ===== */
.cta-section {
    position: relative;
    overflow: visible;
    min-height: 25rem;
    width: 100%;
    margin: var(--section-spacing) 0;
    background-image: url('../img/stop-background.svg');
    background-repeat: no-repeat;
    background-size: cover;
    padding: 2rem 1rem;
}

.cta-block {
    display: flex;
    flex-direction: column;
    position: relative;
    color: white;
    align-items: flex-start;
    max-width: var(--content-width);
    margin: 0 auto;
}

.cta-frog {
    width: 35%;
    max-width: 346px;
    height: auto;
    position: absolute;
    left: 5%;
    bottom: -120%;
    z-index: 2;
}

.cta-title {
    font-size: clamp(2rem, 5vw, 3rem);
    color: var(--clr-white);
    margin-bottom: 0.5rem;
    font-family: var(--font-heading);
    text-transform: uppercase;
    text-align: center;
}

.cta-subtitle {
    font-size: clamp(1.2rem, 2.5vw, 1.8rem);
    color: var(--clr-white);
    margin-bottom: 2rem;
    text-align: center;
}

.cta-wave {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 5rem;
}

/* ===== Infographic ===== */

.why-subtitle {
    text-align: center;
    font-size: clamp(1.25rem, 3vw, 2rem);
    font-family: var(--font-body);
    margin-bottom: 2rem;
}


.infographic {
    position: relative;
    width: 100%;
    height: auto;
    min-height: 25rem;
    margin: 5rem 0;
}
    .infographic::after {
        content: '';
        position: absolute;
        top: 30%;
        right: 0;
        width: 5px;
        height: calc(90% - 30%);
        background-color: var(--clr-purple);
        display: none; 
    }

.top-line, .bottom-line {
    position: absolute;
    background-color: var(--clr-purple);
    height: 6px;
    display: none;
}

.vertical-line {
    position: absolute;
    background-color: var(--clr-purple);
    width: 5px;
    height: 2rem;
    display: none;
}

.point {
    position: absolute;
    width: 25px;
    height: 25px;
    background-color: var(--clr-purple);
    border-radius: 50%;
    transform: translate(-50%, -50%);
}

.infographic-icon {
    width: 100%;
    max-width: 180px;
    height: auto;
    position: relative;
    margin: 0 auto 1.5rem;
}

.info-text {
    background-color: var(--clr-pink);
    padding: 0.5rem;
    border-radius: var(--border-radius-sm);
    font-size: clamp(1rem, 1.5vw, 1.5rem);
    line-height: 1.4;
    text-align: center;
    margin-bottom: 3rem;
}

/* ===== Advantages ===== */
.advantages__title {
    font-size: clamp(2rem, 5vw, 3rem);
    text-align: center;
    margin-bottom: 3rem;
    font-family: var(--font-heading, Arial);
}

.advantages__grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
    max-width: var(--content-width);
    margin: 0 auto;
}

.advantage-card {
    position: relative;
    width: 100%;
    min-height: 12rem;
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    overflow: hidden;
    background-size: 100% 100%;
    background-repeat: no-repeat;
    height: auto;
}

.advantage-card--purple {
    background-image: url('../img/advantage-card-purple.svg');
}

.advantage-card--red {
    background-image: url('../img/advantage-card-red.svg');
}

.advantage-number {
    position: absolute;
    top: 1.25rem;
    left: 1rem;
    z-index: 2;
    color: var(--clr-black);
    font-family: var(--font-heading);
    font-size: 2rem;
    font-weight: 700;
    line-height: 1;
}

.advantage-content {
    display: flex;
    flex-direction: column;
    margin-left: 1rem;
    flex-grow: 1;
}

.advantage-title {
    margin-left: 5rem;
    margin-bottom: 2rem;
    margin-top: 0;
    font-family: var(--font-heading);
    font-size: clamp(1.2rem, 2vw, 1.5rem);
    color: #fff;
}

.advantage-text {
    color: #fff;
    font-size: clamp(1.3rem, 1.8vw, 1.5rem);
    line-height: 1.4;
    margin: 0;
}

/* ===== Video ===== */
.media-video-wrapper {
    position: relative;
    padding-bottom: 56.25%;
    height: 0;
    margin-top: 1.5rem;
}

    .media-video-wrapper iframe {
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        border-radius: 12px;
    }

/* ===== Reviews ===== */
.carousel-wrapper {
    width: 100%;
    position: relative;
    margin-bottom: 1.25rem;
}

.my-slider {
    display: block;
}

.slide-item {
    padding: 0 0.625rem;
    display: flex;
    align-items: stretch;
}

.review-card {
    width: 100%;
    opacity: 0.5;
    transform: scale(0.9);
    transition: transform 0.3s, opacity 0.3s;
}

.card-inner {
    background-color: rgba(126, 215, 245, 0.25);
    border: 2px solid var(--clr-blue);
    border-radius: 20px;
    padding: 2.25rem;
    height: 100%;
}

.user-header {
    display: flex;
    align-items: center;
    margin-bottom: 1rem;
}

.avatar {
    width: 4.375rem;
    height: 4.375rem;
    background-color: white;
    border-radius: 50%;
    margin-right: 1.25rem;
}

.user-name {
    flex: 1;
    font-family: var(--font-heading);
    font-size: clamp(1.1rem, 1.8vw, 1.5rem);
    text-align: left;
    color: #000;
}

.review-text {
    font-size: clamp(1rem, 1.8vw, 1.5rem);
    color: #000;
    line-height: 1.5;
}

/* Slider controls */
.tns-nav {
    padding: 1.25rem 0;
    text-align: center;
    margin-top: 1.25rem;
    position: relative;
}

    .tns-nav button {
        width: 12px;
        height: 12px;
        background-color: var(--clr-yellow);
        border-radius: 50%;
        margin: 0 5px;
        opacity: 0.4;
        border: none;
        cursor: pointer;
        padding: 0;
        transition: opacity 0.3s ease;
    }

    .tns-nav .tns-nav-active {
        opacity: 1;
        transform: scale(1.2);
    }

#custom-controls {
    text-align: center;
    margin-top: 1rem;
    position: relative;
}

    #custom-controls .prev,
    #custom-controls .next {
        background-color: var(--clr-blue);
        color: white;
        border: none;
        padding: 0.9rem 1.6rem;
        margin: 0 0.5rem;
        border-radius: 10px;
        cursor: pointer;
        font-size: clamp(1rem, 1.5vw, 1.5rem);
        font-family: var(--font-heading);
        transition: background-color 0.3s ease, transform 0.2s ease;
    }

        #custom-controls .prev:hover,
        #custom-controls .next:hover {
            background-color: #0056b3;
            transform: translateY(-2px);
        }

        #custom-controls .prev:active,
        #custom-controls .next:active {
            transform: translateY(1px);
        }

.tns-slide-current .review-card {
    opacity: 1;
    transform: scale(1);
    z-index: 2;
}

.tns-slide-prev .review-card,
.tns-slide-next .review-card {
    opacity: 0.7;
    transform: scale(0.95);
    z-index: 1;
}

.tns-slider .tns-item.tns-slide-cloned {
    transition: opacity 0.3s, transform 0.3s;
}

.tns-visually-hidden {
    display: none;
}

/* ===== Trial Offer ===== */
.trial-offer__inner {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: clamp(1rem, 2vw, 1.5rem);
    background: #fff;
    border: 2px solid var(--clr-pink);
    border-radius: clamp(1.5rem, 3vw, 2rem);
    box-shadow: 0 0 15px rgba(117, 68, 239, 0.4), inset 0 0 10px rgba(117, 68, 239, 0.2);
    overflow: hidden;
    max-width: var(--content-width);
    margin: 0 auto;
}

.trial-offer__illustration {
    position: relative;
    overflow: hidden;
    margin: clamp(-1.25rem, -2vw, -1rem) 0 clamp(-2.5rem, -3vw, -2rem) clamp(-1.25rem, -2vw, -1rem);
    height: 100%;
}

.trial-bg {
    width: 100%;
    height: 100%;
    background-image: url('../img/trial-bg.jpg');
    background-size: cover;
    background-position: center;
}

.trial-characters {
    position: absolute;
    left: 30%;
    bottom: 5%;
    transform: translateX(-50%);
    width: 100%;
    max-width: 300px;
    height: auto;
    z-index: 1;
}

.trial-offer__form {
    background: #fff;
    padding: clamp(2rem, 4vw, 2.5rem);
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.trial-offer__title {
    font-size: clamp(1.75rem, 3vw, 2rem);
    font-weight: 700;
    color: #000;
    margin: 0 0 clamp(0.5rem, 1vw, 0.625rem);
    text-align: center;
}

.trial-offer__subtitle {
    font-size: clamp(0.95rem, 1.5vw, 1rem);
    color: #000;
    margin: 0 0 clamp(1.5rem, 2vw, 1.875rem);
    text-align: center;
}

/* ===== Trial Form ===== */
.trial-form {
    display: flex;
    flex-direction: column;
    gap: clamp(1rem, 2vw, 1.25rem);
    z-index: 2;
}

    .trial-form input {
        padding: clamp(0.75rem, 1.5vw, 1rem) clamp(1rem, 2vw, 1.5rem);
        font-size: clamp(0.9rem, 1.5vw, 1rem);
        border: 2px solid var(--clr-yellow);
        background: #FFF9C4;
        border-radius: 10px;
        outline: none;
    }

        .trial-form input::placeholder {
            color: #999;
        }

.form-message {
    margin-top: clamp(0.75rem, 1.5vw, 0.9375rem);
    font-size: clamp(0.85rem, 1.2vw, 0.95rem);
    font-weight: 500;
}

    .form-message.success {
        color: green;
    }

    .form-message.error {
        color: red;
    }

/* ===== Footer Components ===== */
.footer-logo {
    width: 10rem;
    height: auto;
}

.footer-socials {
    display: flex;
    gap: 0.75rem;
}

    .footer-socials a {
        margin: 0;
    }

    .footer-socials img {
        width: 1.5rem;
        height: 1.5rem;
    }

.footer-privacy, .footer-agreement {
    color: #fff;
    font-size: 1rem;
    text-decoration: underline;
    transition: opacity 0.3s ease;
    display: block;
    margin-top: 0.5rem;
}

    .footer-privacy:hover, .footer-agreement:hover {
        opacity: 0.8;
    }

.footer-links {
    display: flex;
    gap: 2.5rem;
}

    .footer-links a {
        color: #fff;
        text-decoration: none;
        font-size: 1.3rem;
        transition: opacity 0.3s ease;
    }

        .footer-links a:hover {
            opacity: 0.8;
        }

.footer-contacts {
    color: #fff;
    font-size: 1rem;
    margin-top: 1rem;
}

    .footer-contacts p {
        margin: 0.5rem 0;
    }

    .footer-contacts a {
        color: #fff;
        text-decoration: none;
    }

        .footer-contacts a:hover {
            text-decoration: underline;
        }

.footer-requisites {
    color: #fff;
    font-size: 0.8rem;
    text-align: center;
    margin-top: 1.5rem;
    padding-bottom: 1rem;
}

    .footer-requisites p {
        margin: 0.3rem 0;
    }