/* ========== RESPONSIVE STYLES ========== */

/* Mobile Menu & Burger (Hidden on Desktop) */
.burger {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 10px;
    z-index: 1001;
    position: relative;
    width: 44px;
    height: 44px;
}

.burger span {
    display: block;
    width: 24px;
    height: 2px;
    background-color: var(--color-dark);
    margin: 5px auto;
    transition: var(--transition-normal);
}

.burger.open span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}
.burger.open span:nth-child(2) {
    opacity: 0;
}
.burger.open span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

.mobile-menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 280px;
    height: 100vh;
    background-color: var(--color-white);
    box-shadow: -5px 0 15px rgba(0,0,0,0.1);
    z-index: 1000;
    transition: right var(--transition-normal);
    padding: 80px 20px 30px;
    display: flex;
    flex-direction: column;
    overflow-y: auto;
}

.mobile-menu.open {
    right: 0;
}

.mobile-menu__nav {
    display: flex;
    flex-direction: column;
    gap: 20px;
    margin-bottom: 30px;
}

.mobile-menu__link {
    font-size: 18px;
    font-weight: 500;
    color: var(--color-dark);
}

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

.mobile-menu__btn {
    text-align: center;
}

.mobile-menu__overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.5);
    z-index: 999;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition-normal);
}

.mobile-menu__overlay.open {
    opacity: 1;
    visibility: visible;
}

/* ===== MAX-WIDTH: 1200px ===== */
@media (max-width: 1200px) {
    .container {
        padding: 0 30px;
    }

    .hero__content {
        gap: 20px;
    }

    .hero__title {
        font-size: 56px;
    }
    .hero__title-main, .hero__title-accent {
        font-size: 40px;
    }

    .audience-grid {
        gap: 15px;
    }
    
    .tabs {
        padding: 0 15px;
    }
}

/* ===== MAX-WIDTH: 1024px ===== */
@media (max-width: 1024px) {
    /* Header */
    .header__nav, .header .btn--login {
        display: none;
    }
    
    .burger {
        display: block;
    }

    /* Hero */
    .hero {
        padding-top: 120px;
        min-height: auto;
    }
    
    .hero__content {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero__left {
        text-align: center;
        margin: 0 auto;
    }

    .hero__description {
        margin: 0 auto 30px;
    }
    
    .hero__stats {
        justify-content: center;
    }

    .hero__form {
        max-width: 600px;
        margin: 0 auto;
        padding: var(--spacing-md) var(--spacing-xl) var(--spacing-xl) var(--spacing-xl);
    }

    /* Tabs */
    .tabs__layout {
        flex-direction: column;
        gap: 30px;
        display: flex;
    }
    
    .tabs__header {
        flex-wrap: wrap;
    }

    /* Target Audience */
    .audience-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    .audience-title-block {
        grid-column: span 3;
        grid-row: span 1;
        min-height: auto;
        padding: 30px;
    }
    
    /* Promo Banner */
    .promo-banner__wrapper {
        flex-direction: column;
        text-align: center;
    }
    .promo-banner__image-wrapper {
        margin-top: 30px;
    }
    
    /* Footer */
    .footer__content {
        grid-template-columns: repeat(2, 1fr);
        gap: 40px;
    }
}

/* ===== MAX-WIDTH: 768px ===== */
@media (max-width: 768px) {
    .container {
        padding: 0 20px;
    }

    .section__title {
        font-size: 28px;
        margin-bottom: 30px;
    }
    
    .section__subtitle {
        font-size: 16px;
    }

    /* Hero */
    .hero__title {
        font-size: 40px;
    }
    .hero__title-main, .hero__title-accent {
        font-size: 32px;
    }

    .hero__title-accent::after {
        left: 50%;
        transform: translateX(-50%);
    }
    
    .hero__badge {
        font-size: 12px;
        padding: 6px 16px;
    }

    .hero__form {
        padding: var(--spacing-md) var(--spacing-lg) var(--spacing-lg) var(--spacing-lg);
    }

    /* Steps */
    .steps__wrapper {
        flex-direction: column;
        align-items: center;
    }
    
    .step-arrow {
        transform: rotate(90deg) !important;
        margin: 20px 0;
    }

    /* Pricing */
    .pricing__grid {
        grid-template-columns: 1fr;
        max-width: 450px;
        margin: 0 auto;
        gap: 20px;
    }

    /* Target Audience */
    .audience-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .audience-title-block {
        grid-column: span 2;
    }
    
    .card--sport, .card--pilates, .card--martial, .card--jumping {
        grid-column: span 2;
    }
    
    /* Application Form */
    .form__row {
        flex-direction: column;
        gap: 16px;
    }
    
    .application__form {
        padding: 30px 20px;
    }
    
    /* FAQ */
    .faq-item__question {
        font-size: 16px;
        padding: 15px;
        min-height: 60px;
    }
}

/* ===== MAX-WIDTH: 480px ===== */
@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }

    .section__title {
        font-size: 24px;
        margin-bottom: 25px;
    }

    /* Hero */
    .hero__title-main, .hero__title-accent {
        font-size: 22px;
        line-height: 1.2;
    }
    
    .hero__description {
        font-size: 15px;
        line-height: 1.6;
        margin-bottom: 0;
    }

    /* Form Inputs & Buttons */
    .form__input, .btn {
        width: 100%;
        font-size: 16px;
        padding: 14px 20px;
        text-align: center;
    }
    
    .hero__form-inputs {
        flex-direction: column;
    }
    
    .hero__form {
        padding: var(--spacing-sm) var(--spacing-md) var(--spacing-md) var(--spacing-md);
    }
    
    .form__checkbox span {
        font-size: 12px;
        text-align: left;
    }

    /* Tabs */
    .tabs__btn {
        width: 100%;
        text-align: center;
        padding: 12px;
    }
    .tabs__features-list li {
        font-size: 14px;
        margin-bottom: 12px;
        padding-left: 0;
        display: grid;
        grid-template-columns: 24px 1fr;
        grid-template-rows: auto auto;
        column-gap: 10px;
    }
    .tabs__features-list li::before {
        position: static;
        grid-column: 1;
        grid-row: 1;
        margin-top: 2px;
    }
    .tabs__features-list li strong {
        grid-column: 2;
        grid-row: 1;
        display: flex;
        align-items: center;
    }
    .tabs__features-list li > *:not(strong) {
        grid-column: 1 / -1;
        grid-row: 2;
        padding-left: 34px;
        margin-top: 4px;
    }
    .tabs__features-list li .li-text {
        grid-column: 1 / -1;
        grid-row: 2;
        padding-left: 34px;
        margin-top: 4px;
    }

    /* Target Audience */
    .audience-grid {
        grid-template-columns: 1fr;
    }
    .audience-title-block {
        grid-column: span 1;
        padding: 20px;
    }
    
    .audience-title-text {
        font-size: clamp(20px, 6vw, 26px);
    }
    
    .audience-card {
        grid-column: span 1 !important;
        grid-row: span 1 !important;
        min-height: 160px;
    }
    
    .card-title {
        font-size: 18px;
        padding: 15px;
    }

    /* Promo */
    .promo-banner__title {
        font-size: 20px;
    }
    .promo-banner__text {
        font-size: 14px;
    }
    .promo-banner__content {
        padding: 30px 20px;
    }

    /* Footer */
    .footer__content {
        grid-template-columns: 1fr;
        gap: 30px;
        text-align: center;
    }
    
    .footer__socials {
        justify-content: center;
    }
    
    .footer__logo {
        justify-content: center;
    }

    .footer__contacts {
        align-items: stretch;
        display: grid;
        grid-template-columns: 1fr;
        width: fit-content;
        margin: 0 auto;
    }

    .footer__contact-item {
        justify-content: flex-start;
        display: grid;
        grid-template-columns: 24px 1fr;
        gap: 8px;
        text-align: left;
    }
}

/* ===== MAX-WIDTH: 350px (Small Mobile) ===== */
@media (max-width: 350px) {
    .section__title {
        font-size: 22px;
    }

    .hero__title-main, .hero__title-accent {
        font-size: 24px;
    }
    
    .hero__description {
        font-size: 14px;
    }

    .btn, .form__input, .form__textarea {
        font-size: 14px;
        padding: 12px 15px;
    }
    
    .hero__form {
        padding: 20px 15px;
    }
    
    .tabs__btn {
        font-size: 14px;
        padding: 10px;
    }
    
    .step-card {
        padding: 20px;
    }
    
    .pricing-card {
        padding: 25px 20px;
    }
}