/* ==========================================================================
   Moban 8-10-3 — responsive.css
   ========================================================================== */

/* ====== Máy tính bảng / màn hình hẹp ====== */
@media (max-width: 992px) {
    .hero-title { font-size: 40px; }
    .hero-img { height: 440px; }
    .features-grid { grid-template-columns: 1fr; gap: 20px; }
    .feature-card { flex-direction: row; align-items: stretch; }
    .feature-media { flex: 0 0 42%; min-width: 0; }
    .feature-img { aspect-ratio: auto; height: 100%; }
    .front-two-col { grid-template-columns: 1fr; gap: 30px; }
    .front-main-col, .front-side-col { grid-area: auto; }
    .post-grid { grid-template-columns: 1fr; }
    .related-grid { grid-template-columns: repeat(2, 1fr); }
    .footer-widgets { grid-template-columns: 1fr 1fr; }
    .toolbar-search { max-width: 260px; }
}

/* ====== Điện thoại ====== */
@media (max-width: 768px) {
    .toolbar-inner {
        flex-wrap: wrap;
        padding-top: 8px;
        padding-bottom: 8px;
        gap: 10px;
    }
    .toolbar-search { order: 3; flex: 1 1 100%; max-width: none; }
    .navbar-inner {
        flex-wrap: wrap;
        padding-top: 12px;
        padding-bottom: 12px;
        gap: 12px;
    }
    .site-logo { flex: 1 1 auto; }
    .nav-toggle { display: flex; }
    .header-actions { margin-left: auto; }
    .main-nav {
        display: none;
        flex: 1 1 100%;
        border-top: 1px solid var(--line);
        padding: 10px 0;
    }
    .main-nav.is-open { display: block; }
    .nav-menu {
        flex-direction: column;
        align-items: stretch;
        gap: 0;
    }
    .nav-menu a {
        padding: 12px 8px;
        border-bottom: 1px solid var(--line);
        white-space: normal;
    }
    .nav-menu li:last-child a { border-bottom: 0; }
    .hero-cover { min-height: 420px; }
    .hero-img { height: 420px; }
    .hero-title { font-size: 30px; }
    .hero-excerpt { font-size: 14px; }
    .hero-content { padding-bottom: 36px; }
    .section-title { font-size: 22px; }
    .page-title { font-size: 28px; }
    .single-title { font-size: 26px; }
    .single-post, .static-page { padding: 24px 20px; }
    .single-nav { flex-direction: column; }
    .single-nav-item:last-child { text-align: left; }
    .related-grid { grid-template-columns: 1fr; }
    .cta-inner { flex-direction: column; align-items: flex-start; }
    .feature-card { flex-direction: column; }
    .feature-media { flex: none; }
    .feature-img { aspect-ratio: 16 / 10; height: auto; }
    .footer-widgets { grid-template-columns: 1fr; }
}

/* ====== Điện thoại nhỏ ====== */
@media (max-width: 480px) {
    .container { padding: 0 14px; }
    .hero-cover { min-height: 360px; }
    .hero-img { height: 360px; }
    .hero-title { font-size: 24px; }
    .hero-kicker { font-size: 11px; letter-spacing: 2px; }
    .btn-hero { padding: 11px 22px; font-size: 13px; }
    .header-actions .btn-login { display: none; }
    .toolbar-date { font-size: 12px; }
    .toolbar-social .social-link { width: 24px; height: 24px; }
    .news-link { flex-direction: column; gap: 12px; }
    .news-thumb { flex: none; width: 100%; }
    .news-title { font-size: 17px; }
    .section-title { font-size: 20px; }
    .single-title { font-size: 22px; }
    .cta-title { font-size: 24px; }
    .back-to-top { right: 14px; bottom: 14px; width: 42px; height: 42px; }
}