@media (max-width: 1100px) {
    .ob-public-hero-grid,
    .ob-download-layout {
        grid-template-columns: 1fr;
    }

    .ob-public-upload-card {
        max-width: 720px;
        margin: 0 auto;
    }

    .ob-public-feature-grid,
    .ob-public-faq-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .ob-public-dark-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .ob-public-container {
        width: min(100% - 24px, var(--wf-container));
    }

    .ob-public-hero {
        padding: 56px 0 44px;
    }

    .ob-public-title {
        font-size: clamp(38px, 12vw, 56px);
    }

    .ob-public-desc {
        font-size: 16px;
    }

    .ob-public-actions,
    .ob-public-upload-actions {
        flex-direction: column;
    }

    .ob-public-btn,
    .ob-public-btn-primary,
    .ob-public-btn-light,
    .ob-public-actions a,
    .ob-download-option-action a {
        width: 100%;
    }

    .ob-public-upload-inner {
        min-height: auto;
        padding: 26px 18px;
    }

    .ob-public-meta-grid,
    .ob-public-feature-grid,
    .ob-public-faq-grid,
    .ob-public-steps,
    .ob-download-options {
        grid-template-columns: 1fr;
    }

    .ob-public-dark-panel,
    .ob-public-bottom-box {
        padding: 24px;
        border-radius: 24px;
    }

    .ob-public-bottom-box {
        display: block;
    }

    .ob-public-bottom-box .ob-public-actions {
        margin-top: 22px;
    }

    .ob-public-search-form {
        flex-direction: column;
    }

    .nav-container .logo {
        max-height: 36px;
    }
}

/* Step 13B: responsive home hero tightening */
@media (max-width: 1100px) {
    .ob-public-hero-grid {
        grid-template-columns: 1fr;
        gap: 34px;
    }

    .ob-public-upload-card {
        margin-left: auto;
        margin-right: auto;
    }

    .ob-public-title {
        max-width: 760px;
    }
}

@media (max-width: 768px) {
    .ob-public-hero {
        padding: 44px 0 36px;
    }

    .ob-public-title {
        font-size: clamp(34px, 10vw, 46px);
        line-height: 1.12;
        letter-spacing: -0.045em;
    }

    .ob-public-upload-card {
        padding: 16px;
    }

    .ob-public-upload-inner {
        padding: 22px 16px;
    }
}

/* Step 13C: mobile final balance */
@media (max-width: 1100px) {
    .ob-public-hero {
        padding: 50px 0 42px;
    }

    .ob-public-hero-grid {
        gap: 30px;
    }

    .ob-public-title {
        max-width: 720px;
        font-size: clamp(38px, 7vw, 54px);
    }
}

@media (max-width: 768px) {
    .ob-public-hero {
        padding: 38px 0 32px;
    }

    .ob-public-title {
        font-size: clamp(32px, 9.5vw, 44px);
        line-height: 1.12;
    }

    .ob-public-desc {
        font-size: 15.5px;
    }

    .ob-public-upload-card {
        max-width: 100%;
        padding: 14px;
        border-radius: 22px;
    }

    .ob-public-upload-inner {
        min-height: auto;
        padding: 20px 14px;
        border-radius: 20px;
    }

    .ob-public-upload-icon {
        width: 58px;
        height: 58px;
        font-size: 28px;
    }
}

/* Step 14: VIP responsive */
@media (max-width: 980px) {
    .ob-vip-page h1,
    .ob-upgrade-page h1 {
        font-size: clamp(34px, 8vw, 46px) !important;
    }

    .ob-vip-page h1 + p,
    .ob-upgrade-page h1 + p {
        font-size: 15.5px !important;
        margin-bottom: 22px !important;
    }
}

@media (max-width: 768px) {
    .ob-vip-page .ob-public-container,
    .ob-upgrade-page .ob-public-container {
        width: min(100% - 24px, 1280px);
    }

    .ob-vip-page [class*="alert"],
    .ob-upgrade-page [class*="alert"] {
        margin-top: 10px !important;
    }
}

/* Step 15B: public download page responsive */
@media (max-width: 980px) {
    .wf-download-page {
        padding: 22px 0 46px !important;
    }

    .wf-download-page > .container {
        width: min(100% - 24px, 760px) !important;
    }

    .wf-file-panel {
        display: block !important;
    }

    .wf-copy-wrap {
        margin-top: 18px !important;
        text-align: left !important;
    }

    .wf-copy-btn {
        width: 100% !important;
    }

    .wf-compare-table {
        min-width: 840px !important;
    }

    .wf-row-label {
        width: 220px !important;
    }
}

@media (max-width: 640px) {
    .wf-file-card {
        padding: 18px !important;
        border-radius: 20px !important;
    }

    .wf-file-meta-row {
        grid-template-columns: 1fr !important;
        gap: 4px !important;
    }

    .wf-compare-table th,
    .wf-compare-table td {
        padding: 12px 10px !important;
        font-size: 14px !important;
    }

    .wf-download-btn {
        min-width: 132px !important;
        font-size: 14px !important;
    }
}
/* End Step 15B */