/* ===================================
   Responsive Styles - Mobile First
   =================================== */

/* Tablet: 768px - 1023px */
@media (max-width: 1023px) {
    :root {
        --container-padding: 1.5rem;
        --spacing-3xl: 4rem;
    }

    .header__contacts {
        display: none;
    }

    .header__nav {
        display: none;
    }

    .header__burger {
        display: flex;
    }

    .hero__content {
        grid-template-columns: 1fr;
    }

    .hero__image {
        order: -1;
    }

    .advantages__content,
    .problems__content {
        grid-template-columns: 1fr;
    }

    .clinic__content {
        grid-template-columns: 1fr;
        gap: var(--spacing-xl);
    }

    .clinic__gallery {
        grid-template-columns: repeat(3, 1fr);
    }

    /* Doctors */
    .doctors__grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* Mobile: 320px - 767px */
@media (max-width: 767px) {
    :root {
        --container-padding: 1rem;
        --spacing-3xl: 3rem;
        --spacing-2xl: 2.5rem;
        --spacing-xl: 2rem;
    }

    section {
        padding: var(--spacing-2xl) 0;
    }

    .header__content {
        padding: 0.75rem 0;
    }

    .header__logo img {
        height: 40px;
    }

    .mobile-menu {
        top: 60px;
    }

    /* Hero Section */
    .hero {
        padding: var(--spacing-2xl) 0;
    }

    .hero__features {
        grid-template-columns: 1fr;
        gap: var(--spacing-sm);
    }

    .hero__badge {
        top: 0.5rem;
        right: 0.5rem;
        padding: 0.375rem 0.75rem;
        font-size: 0.75rem;
    }

    /* Features */
    .features__grid {
        grid-template-columns: 1fr;
    }

    /* Problems */
    .problems__content {
        grid-template-columns: 1fr;
    }

    .problems__image {
        height: auto;
        min-height: 400px;
    }

    .problems__image img {
        object-fit: contain;
    }

    .problem-item {
        padding: var(--spacing-lg);
        margin-bottom: var(--spacing-lg);
    }

    .problem-item__icon {
        margin-bottom: var(--spacing-sm);
    }

    .problem-item__problem {
        font-size: 1.125rem;
        margin-bottom: var(--spacing-md);
    }

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

    /* Gallery */
    .gallery__grid {
        grid-template-columns: 1fr;
    }

    .gallery__item img {
        height: 250px;
    }

    /* Offer & Quiz */
    .offer {
        padding: var(--spacing-xl) 0;
    }

    .timer__display {
        font-size: 2rem;
    }

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

    .quiz__question {
        font-size: 1.125rem;
    }

    .quiz__option {
        padding: var(--spacing-sm);
    }

    .quiz__back,
    .quiz__next {
        width: 100%;
        margin: 0.5rem 0;
    }

    /* Advantages */
    .advantages__content {
        grid-template-columns: 1fr;
    }

    .advantages__image {
        order: -1;
    }

    .advantage {
        flex-direction: column;
        text-align: center;
    }

    .advantage__icon i {
        font-size: 1.5rem;
    }

    .highlight-badge {
        flex-direction: column;
        text-align: center;
        padding: var(--spacing-md);
        font-size: 1rem;
    }

    /* Clinic */
    .clinic__content {
        grid-template-columns: 1fr;
    }

    .clinic__gallery {
        grid-template-columns: repeat(2, 1fr);
    }

    /* Reviews */
    .reviews__grid {
        grid-template-columns: 1fr;
    }

    .review-card__header {
        flex-direction: column;
        text-align: center;
    }

    /* Doctors */
    .doctors__grid {
        grid-template-columns: 1fr;
    }

    .doctor-card__image {
        height: 300px;
    }

    /* FAQ */
    .faq__question {
        font-size: 1rem;
        padding: var(--spacing-md);
    }

    .faq__answer p {
        padding: 0 var(--spacing-md) var(--spacing-md);
    }

    /* Pricing */
    .pricing__table {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }

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

    .pricing__service {
        font-size: 1rem;
        margin-bottom: var(--spacing-md);
        text-align: left;
    }

    .pricing__prices {
        justify-content: center;
        gap: var(--spacing-lg);
    }

    .pricing__old {
        font-size: 1.125rem;
    }

    .pricing__new {
        font-size: 1.5rem;
    }

    .pricing__row--featured::before {
        font-size: 0.65rem;
        padding: 5px 40px;
        top: 18px;
        right: -38px;
    }

    /* Licenses */
    .licenses__gallery {
        grid-template-columns: 1fr;
    }

    .badge {
        flex-direction: column;
        padding: var(--spacing-md);
        text-align: center;
    }

    .badge i {
        font-size: 1.5rem;
    }

    .badge p {
        font-size: 1rem;
    }

    /* Footer */
    .footer__content {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }

    .footer__col {
        text-align: center;
    }

    .footer__list {
        align-items: center;
    }

    /* Modal */
    .modal__content {
        padding: var(--spacing-lg);
        margin: var(--spacing-sm);
    }

    .modal__title {
        font-size: 1.25rem;
    }

    /* Buttons */
    .btn {
        width: 100%;
        padding: 0.875rem 1.25rem;
    }

    .btn--large {
        padding: 1rem 1.5rem;
    }
}

/* Small Mobile: 320px - 479px */
@media (max-width: 479px) {
    :root {
        --spacing-2xl: 2rem;
        --spacing-xl: 1.5rem;
    }

    h1 {
        font-size: 1.75rem;
    }

    h2 {
        font-size: 1.5rem;
    }

    h3 {
        font-size: 1.25rem;
    }

    .section__title {
        font-size: 1.5rem;
    }

    .section__subtitle {
        font-size: 1rem;
    }

    .hero__title {
        font-size: 1.5rem;
    }

    .hero__subtitle {
        font-size: 1rem;
    }

    .offer__title {
        font-size: 1.5rem;
    }

    .timer__display {
        font-size: 1.75rem;
    }

    .final-cta__title {
        font-size: 1.5rem;
    }
}

/* Large Desktop: 1440px+ */
@media (min-width: 1440px) {
    :root {
        --container-width: 1400px;
    }
}

/* Print Styles */
@media print {
    .header,
    .footer,
    .mobile-menu,
    .modal,
    .btn,
    .quiz,
    .offer,
    .final-cta {
        display: none !important;
    }

    section {
        page-break-inside: avoid;
    }

    img {
        max-width: 100% !important;
        page-break-inside: avoid;
    }
}

/* Landscape Orientation */
@media (max-width: 767px) and (orientation: landscape) {
    .hero__image,
    .gallery__item img,
    .clinic__image {
        height: 200px;
    }

    .modal__content {
        max-height: 80vh;
    }
}

/* High DPI / Retina Displays */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
    .hero__image img,
    .gallery__item img,
    .clinic__image img,
    .doctor-card__image img {
        image-rendering: -webkit-optimize-contrast;
    }
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}

/* Dark Mode (Optional) */
@media (prefers-color-scheme: dark) {
    /* Uncomment to enable dark mode support
    :root {
        --color-bg-light: #1F2937;
        --color-white: #111827;
        --color-text: #F9FAFB;
        --color-text-light: #D1D5DB;
        --color-border: #374151;
    }
    */
}