@media (max-width: 820px) {
    body {
        padding: 12px;
        padding-top: max(12px, env(safe-area-inset-top));
        padding-bottom: max(16px, env(safe-area-inset-bottom));
    }

    h1 {
        margin: 18px 0 14px;
        font-size: 1.95rem;
        letter-spacing: 0.06em;
    }

    .top-left-bar,
    .top-bar {
        position: static;
        display: flex;
        flex-wrap: nowrap;
        gap: 8px;
        align-items: center;
        justify-content: flex-start;
        overflow-x: auto;
        padding: 2px 2px 10px;
        margin: 0 0 8px;
        -ms-overflow-style: none;
        scrollbar-width: none;
    }

    .top-left-bar::-webkit-scrollbar,
    .top-bar::-webkit-scrollbar {
        display: none;
    }

    .lang-btn,
    .menu-item,
    .legal-btn,
    .action-btn {
        flex: 0 0 auto;
        min-height: 40px;
    }

    .search-container {
        margin-bottom: 18px;
    }

    .search-wrapper {
        width: 100%;
        max-width: 100%;
    }

    .search-input {
        height: 48px;
        border-radius: 16px;
        font-size: 16px;
    }

    .search-clear-btn {
        right: 14px;
        font-size: 22px;
    }

    .search-tooltip {
        width: calc(100vw - 32px);
        max-width: 340px;
    }

    .gallery-info {
        text-align: center;
        padding-left: 0;
        margin-bottom: 14px;
    }

    .gallery-container {
        gap: 10px;
    }

    .gallery-column {
        gap: 10px;
    }

    .card {
        border-radius: 14px;
    }

    .modal {
        align-items: flex-end;
    }

    .modal-content-wrapper {
        width: 100%;
        height: 100dvh;
        gap: 0;
    }

    .modal-image-area {
        flex: 0 0 42dvh;
        padding: calc(env(safe-area-inset-top) + 56px) 12px 12px;
        touch-action: pan-y;
    }

    .modal-sidebar {
        width: 100%;
        max-height: 58dvh;
        padding: 16px 16px calc(env(safe-area-inset-bottom) + 18px);
        border-left: none;
        border-top: 1px solid #444;
        border-radius: 24px 24px 0 0;
        background: rgba(18, 22, 28, 0.94);
        transition: transform 0.22s ease, opacity 0.22s ease;
        box-sizing: border-box;
        overflow-x: hidden;
    }

    .modal-sidebar > *,
    .modal-sidebar .modal-meta-row,
    .modal-sidebar .modal-tags,
    .modal-sidebar .comments-section,
    .modal-sidebar .comment-list,
    .modal-sidebar .comment-form,
    .modal-sidebar .comment-submit-row,
    .modal-sidebar .related-images-section,
    .modal-sidebar .related-images-grid {
        box-sizing: border-box;
        min-width: 0;
        max-width: 100%;
    }

    .modal-meta-row {
        gap: 10px;
    }

    .modal-sidebar .modal-date,
    .modal-sidebar .comments-header,
    .modal-sidebar .related-images-section h3 {
        min-width: 0;
        overflow-wrap: anywhere;
    }

    .modal-sidebar .heart-container {
        flex: 0 0 auto;
    }

    .modal.image-focus-mode {
        align-items: stretch;
    }

    .modal.image-focus-mode .modal-content-wrapper {
        display: block;
        width: 100%;
        height: 100dvh;
    }

    .modal.image-focus-mode .modal-image-area {
        position: fixed;
        inset: 0;
        flex: none;
        justify-content: flex-start;
        align-items: center;
        padding: calc(env(safe-area-inset-top) + 60px) 10px calc(env(safe-area-inset-bottom) + 16px);
        background: rgba(0, 0, 0, 0.98);
        z-index: 3;
        touch-action: none;
    }

    .modal.image-focus-mode .modal-sidebar {
        opacity: 0;
        pointer-events: none;
        transform: translateY(100%);
    }

    .modal-content.mobile-focused {
        max-width: calc(100vw - 8px);
        max-height: calc(100dvh - env(safe-area-inset-top) - env(safe-area-inset-bottom) - 76px);
        width: auto;
        height: auto;
        object-fit: contain;
        transform-origin: center center;
        touch-action: none;
        transition: transform 0.08s linear;
        will-change: transform;
    }

    .close-btn {
        top: calc(env(safe-area-inset-top) + 10px);
        right: 14px;
        width: 42px;
        height: 42px;
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 34px;
        border-radius: 999px;
        background: rgba(0, 0, 0, 0.38);
    }

    .nav-btn {
        top: auto;
        bottom: calc(env(safe-area-inset-bottom) + 12px);
        transform: none;
        font-size: 28px;
        padding: 10px 13px;
        border-radius: 16px;
        background: rgba(0, 0, 0, 0.42);
        color: #fff;
    }

    .nav-btn:hover {
        transform: none;
    }

    .prev-btn {
        left: 12px;
    }

    .next-btn {
        right: 12px;
    }

    .modal.image-focus-mode .prev-btn,
    .modal.image-focus-mode .next-btn {
        bottom: calc(env(safe-area-inset-bottom) + 18px);
        z-index: 4;
    }

    .comment-input,
    .form-group input {
        font-size: 16px;
    }

    .comment-input {
        min-height: 88px;
        height: 88px;
    }

    .comment-btn,
    .submit-btn {
        min-height: 44px;
    }

    .form-box {
        width: min(100%, 420px);
        max-height: calc(100dvh - 24px);
        margin: 12px;
        padding: 22px 18px;
        border-radius: 18px;
        overflow-y: auto;
    }

    .drop-zone {
        padding: 22px 14px;
    }
}

@media (max-width: 520px) {
    h1 {
        font-size: 1.7rem;
    }

    .modal-image-area {
        flex-basis: 38dvh;
        padding-top: calc(env(safe-area-inset-top) + 52px);
    }

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

    .modal.image-focus-mode .modal-image-area {
        padding-left: 6px;
        padding-right: 6px;
    }

    .modal-content.mobile-focused {
        max-width: calc(100vw - 4px);
    }
}