.single-post {
    overflow: hidden;
}

.single-post .post-meta {
    font-size: 0.9rem;
}

.single-post .post-meta i {
    color: var(--color-primary);
    text-shadow: 0 1px 0 rgba(0, 0, 0, 0.08);
}

/* Post content typography */
.post-content {
    line-height: 1.8;
    font-size: 1.05rem;
    color: var(--color-text);
}

.post-content :is(h2, h3, h4) {
    margin-block: 2rem 1rem;
    font-weight: 700;
    color: var(--color-primary-darker);
    line-height: 1.4;
    text-shadow: 0 1px 0 rgba(0, 0, 0, 0.04);
}

.post-content h2 {
    font-size: 1.75rem;
    padding-bottom: var(--space-xs);
    border-bottom: 2px solid rgba(124, 58, 237, 0.35);
}

.post-content h3 {
    font-size: 1.35rem;
}

.post-content :is(p, li) {
    margin-bottom: var(--space-sm);
}

.post-content blockquote {
    border-inline-start: 4px solid rgba(124, 58, 237, 0.9);
    padding: var(--space-sm) var(--space-md);
    background: rgba(248, 250, 252, 0.78);
    border-radius: 0 18px 18px 0;
    margin-block: var(--space-md);
    color: rgba(71, 85, 105, 0.92);
    box-shadow:
        0 1px 0 rgba(255, 255, 255, 0.65) inset,
        0 10px 30px rgba(124, 58, 237, 0.10);
}

.post-content img {
    max-width: 100%;
    height: auto;
    border-radius: 18px;
    margin-block: var(--space-sm);
    box-shadow:
        0 4px 12px rgba(0, 0, 0, 0.06),
        0 18px 50px -18px rgba(0, 0, 0, 0.28),
        0 1px 0 rgba(255, 255, 255, 0.7) inset;
}

.post-content a {
    color: var(--color-primary);
    text-decoration: underline;
    transition: color 420ms cubic-bezier(0.2, 0.8, 0.2, 1), text-decoration-color 420ms cubic-bezier(0.2, 0.8, 0.2, 1);
}

.post-content a:hover {
    color: var(--color-primary-dark);
    text-decoration-color: rgba(124, 58, 237, 0.65);
}

.post-content ul,
.post-content ol {
    padding-inline-start: 1.5rem;
}

.post-content code {
    background: rgba(226, 232, 240, 0.72);
    padding: 2px 6px;
    border-radius: 8px;
    font-size: 0.9em;
    color: rgba(220, 38, 38, 0.95);
    box-shadow:
        0 1px 0 rgba(255, 255, 255, 0.75) inset,
        0 10px 25px -18px rgba(220, 38, 38, 0.35);
}

.post-content pre {
    background: linear-gradient(145deg, rgba(124, 58, 237, 0.98), rgba(37, 99, 235, 0.9));
    color: #fff;
    padding: var(--space-md);
    border-radius: 18px;
    overflow-x: auto;
    margin-block: var(--space-md);
    box-shadow:
        0 6px 16px rgba(0, 0, 0, 0.10),
        0 28px 70px -26px rgba(37, 99, 235, 0.38);
    border: 1px solid rgba(255, 255, 255, 0.14);
}

.post-content pre code {
    background: transparent;
    color: inherit;
    padding: 0;
}

.post-content table {
    width: 100%;
    border-collapse: collapse;
    margin-block: var(--space-md);
    background: rgba(255, 255, 255, 0.6);
    border-radius: 16px;
    overflow: hidden;
}

.post-content table th,
.post-content table td {
    padding: var(--space-xs) var(--space-sm);
    border: 1px solid rgba(148, 163, 184, 0.42);
    text-align: start;
}

.post-content table th {
    background: rgba(226, 232, 240, 0.55);
    font-weight: 600;
    color: rgba(15, 23, 42, 0.92);
}

/* TOC */
.toc-box {
    border-inline-start: 3px solid rgba(124, 58, 237, 0.95);
    box-shadow: 0 10px 28px -18px rgba(124, 58, 237, 0.35);
}

.toc-box ol {
    padding-inline-start: 1.2rem;
}

.toc-box ol li {
    margin: 0.4rem 0;
}

.toc-box ol li a {
    transition: color 420ms cubic-bezier(0.2, 0.8, 0.2, 1), padding-inline-start 420ms cubic-bezier(0.2, 0.8, 0.2, 1);
    border-radius: 10px;
}

.toc-box ol li a:hover {
    color: rgba(67, 56, 202, 0.98);
    text-decoration: underline !important;
    padding-inline-start: 4px;
}

/* Tags */
.post-tags .badge {
    background: rgba(226, 232, 240, 0.55) !important;
    color: rgba(71, 85, 105, 0.92) !important;
    padding: 6px 12px;
    font-weight: 500;
    transition: background-color 420ms cubic-bezier(0.2, 0.8, 0.2, 1), color 420ms cubic-bezier(0.2, 0.8, 0.2, 1), transform 420ms cubic-bezier(0.2, 0.8, 0.2, 1);
    border: 1px solid rgba(148, 163, 184, 0.38);
    border-radius: 999px;
}

.post-tags .badge:hover {
    background: rgba(124, 58, 237, 0.98) !important;
    color: #fff !important;
    transform: translateY(-1px);
    box-shadow:
        0 10px 30px -15px rgba(124, 58, 237, 0.55),
        0 1px 0 rgba(255, 255, 255, 0.35) inset;
}

/* Post nav */
.post-nav {
    flex-wrap: wrap;
    gap: var(--space-sm);
}

.post-nav .btn {
    max-width: 100%;
    overflow: hidden;
    text-overflow: ellipsis;
    border-radius: 14px;
}

/* ============================================
   2. App Hero (AppHeroSection)
   ============================================ */
.app-hero-section {
    background: var(--gradient-hero);
    color: #fff;
    position: relative;
    overflow: hidden;
    border-radius: 22px;
    box-shadow:
        0 10px 35px rgba(0, 0, 0, 0.12),
        0 1px 0 rgba(255, 255, 255, 0.16) inset;
}

.app-hero-section::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(1200px 500px at 15% 15%, rgba(255, 255, 255, 0.14), rgba(0, 0, 0, 0) 60%),
                linear-gradient(180deg, rgba(0, 0, 0, 0.2), rgba(0, 0, 0, 0.35));
    z-index: 0;
}

.app-hero-section > .container {
    position: relative;
    z-index: 1;
}

.app-hero-section h1 {
    font-size: clamp(2rem, 4vw, 3rem);
    line-height: 1.2;
    text-shadow:
        0 10px 30px rgba(0, 0, 0, 0.25),
        0 1px 0 rgba(255, 255, 255, 0.12);
}

.app-hero-section img {
    transition: transform 650ms cubic-bezier(0.2, 0.8, 0.2, 1), filter 650ms cubic-bezier(0.2, 0.8, 0.2, 1);
    filter: drop-shadow(0 20px 45px rgba(0, 0, 0, 0.28));
    border-radius: 18px;
    border: 1px solid rgba(255, 255, 255, 0.18);
}

.app-hero-section img:hover {
    transform: translateY(-10px);
    filter: drop-shadow(0 25px 60px rgba(0, 0, 0, 0.35));
}

.text-white-50 {
    color: rgba(255, 255, 255, 0.65) !important;
}

/* ============================================
   3. App QR (AppQrSection)
   ============================================ */
.app-qr-section {
    background: var(--color-bg-soft);
}

.qr-card {
    transition: transform 420ms cubic-bezier(0.2, 0.8, 0.2, 1), box-shadow 420ms cubic-bezier(0.2, 0.8, 0.2, 1), border-color 420ms cubic-bezier(0.2, 0.8, 0.2, 1), background-color 420ms cubic-bezier(0.2, 0.8, 0.2, 1);
    border: 2px solid transparent;
    border-radius: 20px;
    box-shadow:
        0 4px 10px rgba(0, 0, 0, 0.04),
        0 18px 45px -30px rgba(0, 0, 0, 0.18);
    background: rgba(255, 255, 255, 0.55);
}

.qr-card:hover {
    transform: translateY(-2px) scale(1.02);
    border-color: rgba(124, 58, 237, 0.95);
    box-shadow:
        0 4px 8px rgba(0, 0, 0, 0.05),
        0 20px 40px -10px rgba(0, 0, 0, 0.12),
        0 0 0 6px rgba(124, 58, 237, 0.10);
}

.qr-card img {
    image-rendering: pixelated;
    image-rendering: -moz-crisp-edges;
    image-rendering: crisp-edges;
    border-radius: 14px;
}

/* ============================================
   4. App Install Steps (AppInstallSection)
   ============================================ */
.app-install-section {
    background: var(--color-bg-soft);
}

.app-install-section .badge.rounded-circle {
    width: 50px;
    height: 50px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    font-weight: 700;
    border-radius: 999px;
    background: linear-gradient(180deg, rgba(124, 58, 237, 0.98), rgba(59, 130, 246, 0.9));
    color: #fff !important;
    box-shadow:
        0 8px 20px rgba(124, 58, 237, 0.28),
        0 2px 0 rgba(255, 255, 255, 0.25) inset;
    border: 1px solid rgba(255, 255, 255, 0.18);
}

.app-install-section .bg-white {
    transition: all 430ms cubic-bezier(0.2, 0.8, 0.2, 1);
    position: relative;
    overflow: hidden;
    border-radius: 20px;
    box-shadow:
        0 4px 12px rgba(0, 0, 0, 0.05),
        0 18px 50px -26px rgba(0, 0, 0, 0.18);
    background: rgba(255, 255, 255, 0.65);
}

.app-install-section .bg-white:hover {
    transform: translateY(-5px);
    box-shadow:
        0 4px 8px rgba(0, 0, 0, 0.05),
        0 20px 40px -10px rgba(0, 0, 0, 0.12),
        0 0 0 7px rgba(59, 130, 246, 0.09);
}

.app-install-section .bg-white::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: linear-gradient(180deg, rgba(124, 58, 237, 0.95), rgba(59, 130, 246, 0.95));
    transform: scaleY(0);
    transform-origin: top;
    transition: transform 420ms cubic-bezier(0.2, 0.8, 0.2, 1);
}

.app-install-section .bg-white:hover::before {
    transform: scaleY(1);
}

/* ============================================
   5. App Showcase (AppShowcaseSection)
   ============================================ */
.app-showcase-section {
    background: var(--color-bg);
}

.app-showcase-section img {
    transition: transform 650ms cubic-bezier(0.2, 0.8, 0.2, 1), filter 650ms cubic-bezier(0.2, 0.8, 0.2, 1);
    filter: drop-shadow(0 15px 30px rgba(0, 0, 0, 0.16));
    border-radius: 18px;
    border: 1px solid rgba(148, 163, 184, 0.28);
}

.app-showcase-section img:hover {
    transform: translateY(-5px) rotate(-1deg);
    filter: drop-shadow(0 18px 40px rgba(0, 0, 0, 0.22));
}

.app-showcase-section .bg-white {
    transition: all 430ms cubic-bezier(0.2, 0.8, 0.2, 1);
    border-inline-start: 3px solid transparent;
    border-radius: 20px;
    box-shadow:
        0 4px 12px rgba(0, 0, 0, 0.05),
        0 18px 50px -28px rgba(0, 0, 0, 0.18);
    background: rgba(255, 255, 255, 0.62);
}

.app-showcase-section .bg-white:hover {
    border-inline-start-color: rgba(124, 58, 237, 0.95);
    transform: translateX(5px);
    box-shadow:
        0 4px 8px rgba(0, 0, 0, 0.05),
        0 20px 40px -10px rgba(0, 0, 0, 0.12),
        0 0 0 6px rgba(124, 58, 237, 0.08);
}

/* ============================================
   6. Contact Sections
   ============================================ */
.contact-channels-section {
    background: var(--color-bg);
}

.contact-channels-section article {
    transition: transform 430ms cubic-bezier(0.2, 0.8, 0.2, 1), box-shadow 430ms cubic-bezier(0.2, 0.8, 0.2, 1), border-color 430ms cubic-bezier(0.2, 0.8, 0.2, 1);
    border: 1px solid rgba(148, 163, 184, 0.35);
    border-radius: 20px;
    box-shadow:
        0 4px 10px rgba(0, 0, 0, 0.04),
        0 18px 55px -38px rgba(0, 0, 0, 0.2);
    background: rgba(255, 255, 255, 0.6);
}

.contact-channels-section article:hover {
    transform: translateY(-5px);
    box-shadow:
        0 4px 8px rgba(0, 0, 0, 0.05),
        0 20px 40px -10px rgba(0, 0, 0, 0.12),
        0 0 0 7px rgba(124, 58, 237, 0.09);
    border-color: rgba(124, 58, 237, 0.95);
}

.contact-channels-section article ul li {
    transition: padding 260ms cubic-bezier(0.2, 0.8, 0.2, 1), color 260ms cubic-bezier(0.2, 0.8, 0.2, 1);
}

.contact-channels-section article ul li:hover {
    padding-inline-start: 4px;
    color: rgba(67, 56, 202, 0.98);
}

/* Contact Quick */
.contact-quick-section {
    background: var(--color-bg-soft);
}

.contact-quick-section .contact-card {
    transition: transform 430ms cubic-bezier(0.2, 0.8, 0.2, 1), box-shadow 430ms cubic-bezier(0.2, 0.8, 0.2, 1), border-color 430ms cubic-bezier(0.2, 0.8, 0.2, 1);
    border-radius: 20px;
    box-shadow:
        0 4px 12px rgba(0, 0, 0, 0.05),
        0 18px 50px -28px rgba(0, 0, 0, 0.18);
    border: 1px solid rgba(148, 163, 184, 0.32);
    background: rgba(255, 255, 255, 0.62);
}

.contact-quick-section .contact-card:hover {
    transform: translateY(-5px);
    box-shadow:
        0 4px 8px rgba(0, 0, 0, 0.05),
        0 20px 40px -10px rgba(0, 0, 0, 0.12),
        0 0 0 6px rgba(59, 130, 246, 0.09);
    border-color: rgba(59, 130, 246, 0.45);
}

.contact-quick-section .contact-card i {
    transition: transform 430ms cubic-bezier(0.2, 0.8, 0.2, 1), color 430ms cubic-bezier(0.2, 0.8, 0.2, 1), filter 430ms cubic-bezier(0.2, 0.8, 0.2, 1);
    color: rgba(124, 58, 237, 0.95);
    filter: drop-shadow(0 10px 18px rgba(124, 58, 237, 0.22));
}

.contact-quick-section .contact-card:hover i {
    transform: scale(1.1) rotate(-5deg);
    color: rgba(59, 130, 246, 0.98);
    filter: drop-shadow(0 14px 26px rgba(59, 130, 246, 0.24));
}

/* Contact Form */
.contact-form-section {
    background: var(--color-bg-soft);
}

.contact-form-section .form-control,
.contact-form-section .form-select {
    border: 2px solid rgba(148, 163, 184, 0.42);
    transition: border-color 260ms cubic-bezier(0.2, 0.8, 0.2, 1), box-shadow 260ms cubic-bezier(0.2, 0.8, 0.2, 1), background-color 260ms cubic-bezier(0.2, 0.8, 0.2, 1), color 260ms cubic-bezier(0.2, 0.8, 0.2, 1);
    border-radius: 16px;
    background: rgba(255, 255, 255, 0.72);
    box-shadow: 0 1px 0 rgba(255, 255, 255, 0.7) inset;
}

.contact-form-section .form-control:focus,
.contact-form-section .form-select:focus {
    border-color: rgba(124, 58, 237, 0.95);
    box-shadow:
        0 0 0 0.2rem rgba(124, 58, 237, 0.10),
        0 10px 35px -20px rgba(124, 58, 237, 0.35);
}

.contact-form-section button[type="submit"] {
    transition: transform 430ms cubic-bezier(0.2, 0.8, 0.2, 1), box-shadow 430ms cubic-bezier(0.2, 0.8, 0.2, 1), background-color 430ms cubic-bezier(0.2, 0.8, 0.2, 1), border-color 430ms cubic-bezier(0.2, 0.8, 0.2, 1);
    border-radius: 16px;
}

.contact-form-section button[type="submit"]:hover {
    transform: translateY(-2px);
    box-shadow:
        0 4px 8px rgba(0, 0, 0, 0.05),
        0 20px 40px -10px rgba(0, 0, 0, 0.12),
        0 0 0 6px rgba(124, 58, 237, 0.09);
}

/* Contact Commitments */
.contact-commitments-section {
    background: var(--color-bg-soft);
}

.contact-commitments-section .bg-white {
    transition: all 430ms cubic-bezier(0.2, 0.8, 0.2, 1);
    text-align: center;
    border-radius: 20px;
    box-shadow:
        0 4px 12px rgba(0, 0, 0, 0.05),
        0 18px 55px -38px rgba(0, 0, 0, 0.2);
    border: 1px solid rgba(148, 163, 184, 0.32);
    background: rgba(255, 255, 255, 0.62);
}

.contact-commitments-section .bg-white:hover {
    transform: translateY(-5px);
    box-shadow:
        0 4px 8px rgba(0, 0, 0, 0.05),
        0 20px 40px -10px rgba(0, 0, 0, 0.12),
        0 0 0 7px rgba(124, 58, 237, 0.09);
}

.contact-commitments-section .bg-white i {
    transition: transform 430ms cubic-bezier(0.2, 0.8, 0.2, 1), color 430ms cubic-bezier(0.2, 0.8, 0.2, 1), filter 430ms cubic-bezier(0.2, 0.8, 0.2, 1);
    color: rgba(124, 58, 237, 0.95);
    filter: drop-shadow(0 10px 18px rgba(124, 58, 237, 0.20));
}

.contact-commitments-section .bg-white:hover i {
    transform: scale(1.15);
    color: rgba(59, 130, 246, 0.98);
    filter: drop-shadow(0 14px 26px rgba(59, 130, 246, 0.24));
}

/* ============================================
   7. Login / Signup Forms
   ============================================ */
main:has(> .container > .bg-white > form) .input-group-text {
    background-color: rgba(226, 232, 240, 0.65);
    border-color: rgba(148, 163, 184, 0.42);
    border-inline-end: none;
    color: rgba(15, 23, 42, 0.85);
    border-radius: 14px;
}

main:has(> .container > .bg-white > form) .input-group .form-control {
    border-inline-start: none;
    border-radius: 14px;
}

main:has(> .container > .bg-white > form) .input-group:focus-within .input-group-text {
    border-color: rgba(124, 58, 237, 0.95);
    background-color: rgba(239, 246, 255, 0.95);
    box-shadow:
        0 0 0 0.2rem rgba(124, 58, 237, 0.12);
}

main:has(> .container > .bg-white > form) .input-group:focus-within .form-control {
    border-color: rgba(124, 58, 237, 0.95);
    box-shadow:
        0 0 0 0.2rem rgba(124, 58, 237, 0.10);
}

main:has(> .container > .bg-white > form) .form-check-input:checked {
    background-color: rgba(124, 58, 237, 0.98);
    border-color: rgba(124, 58, 237, 0.98);
    box-shadow: 0 10px 25px -18px rgba(124, 58, 237, 0.45);
}

main:has(> .container > .bg-white > form) button[type="submit"] {
    transition: transform 430ms cubic-bezier(0.2, 0.8, 0.2, 1), box-shadow 430ms cubic-bezier(0.2, 0.8, 0.2, 1);
    font-weight: 600;
    border-radius: 16px;
}

main:has(> .container > .bg-white > form) button[type="submit"]:hover {
    transform: translateY(-2px);
    box-shadow:
        0 4px 8px rgba(0, 0, 0, 0.05),
        0 20px 40px -10px rgba(0, 0, 0, 0.12),
        0 0 0 6px rgba(124, 58, 237, 0.09);
}

/* ============================================
   8. Icons
   ============================================ */
.icon-img {
    max-width: 32px;
    max-height: 32px;
    object-fit: contain;
}

.icon-emoji {
    display: inline-block;
    line-height: 1;
}

/* ============================================
   9. Hero Buttons (đã có ở theme.css nhưng bổ sung thêm)
   ============================================ */
.hero-buttons .btn {
    transition: transform 430ms cubic-bezier(0.2, 0.8, 0.2, 1), box-shadow 430ms cubic-bezier(0.2, 0.8, 0.2, 1), background-color 430ms cubic-bezier(0.2, 0.8, 0.2, 1), border-color 430ms cubic-bezier(0.2, 0.8, 0.2, 1), color 430ms cubic-bezier(0.2, 0.8, 0.2, 1);
    border-radius: 16px;
}

.hero-buttons .btn:hover {
    transform: translateY(-3px);
    box-shadow:
        0 4px 8px rgba(0, 0, 0, 0.05),
        0 20px 40px -10px rgba(0, 0, 0, 0.12),
        0 0 0 6px rgba(59, 130, 246, 0.10);
}

.hero-buttons .btn-warning {
    background-color: rgba(124, 58, 237, 0.98);
    border-color: rgba(124, 58, 237, 0.98);
    color: rgba(255, 255, 255, 0.98);
    font-weight: 600;
    box-shadow:
        0 14px 40px -25px rgba(124, 58, 237, 0.55);
}

.hero-buttons .btn-warning:hover {
    background-color: rgba(67, 56, 202, 0.98);
    border-color: rgba(67, 56, 202, 0.98);
    box-shadow:
        0 18px 50px -28px rgba(67, 56, 202, 0.55);
}

.hero-buttons .btn-outline-light:hover {
    background-color: rgba(255, 255, 255, 0.16);
    color: #fff;
    box-shadow: 0 20px 55px -40px rgba(255, 255, 255, 0.18);
}

/* ============================================
   10. 自定义滚动条
   ============================================ */
::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}

::-webkit-scrollbar-track {
    background: rgba(226, 232, 240, 0.55);
}

::-webkit-scrollbar-thumb {
    background: linear-gradient(180deg, rgba(59, 130, 246, 0.85), rgba(124, 58, 237, 0.85));
    border-radius: 999px;
    border: 2px solid rgba(226, 232, 240, 0.55);
}

::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(180deg, rgba(124, 58, 237, 0.95), rgba(37, 99, 235, 0.95));
}

/* Firefox */
* {
    scrollbar-width: thin;
    scrollbar-color: rgba(124, 58, 237, 0.9) rgba(226, 232, 240, 0.55);
}

/* ============================================
   11. Print Styles
   ============================================ */
@media print {
    :is(.header,
        .footer,
        .sidebar-widgets,
        .social-share,
        #back-to-top,
        .breadcrumb-nav,
        .notice-bar,
        .cta-banner-section,
        .post-nav,
        .related-posts,
        .author-box,
        .pagination,
        .navbar-toggler,
        .nav-item) {
        display: none !important;
    }

    body {
        background: #fff !important;
        color: #000 !important;
        font-size: 12pt;
    }

    .single-post {
        box-shadow: none !important;
        border: none !important;
        padding: 0 !important;
        max-width: 100% !important;
    }

    .post-content {
        font-size: 11pt;
        line-height: 1.6;
    }

    a {
        text-decoration: underline;
        color: #000 !important;
    }

    a[href^="http"]::after {
        content: " (" attr(href) ")";
        font-size: 9pt;
        color: #555;
    }

    a[href^="#"]::after,
    a[href^="javascript:"]::after,
    a[href^="mailto:"]::after,
    a[href^="tel:"]::after {
        content: "";
    }

    .post-content img {
        max-width: 100% !important;
        page-break-inside: avoid;
        border-radius: 8px !important;
        box-shadow: none !important;
    }

    :is(h1, h2, h3, h4) {
        page-break-after: avoid;
        color: #000 !important;
    }

    p, li {
        orphans: 3;
        widows: 3;
    }
}

/* ============================================
   12. Animations bổ sung
   ============================================ */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
}

.animate-fade-in {
    animation: fadeInUp 0.6s ease-out;
}

.animate-pulse {
    animation: pulse 2s infinite;
}

/* ============================================
   13. Responsive
   ============================================ */
@media (max-width: 991.98px) {
    .post-content {
        font-size: 1rem;
    }

    .post-content h2 {
        font-size: 1.5rem;
    }

    .post-content h3 {
        font-size: 1.2rem;
    }
}

@media (max-width: 767.98px) {
    .single-post {
        padding: var(--space-md) !important;
        border-radius: 16px;
    }

    .post-content {
        font-size: 0.95rem;
    }

    .post-content h2 {
        font-size: 1.35rem;
    }

    .post-nav {
        flex-direction: column;
    }

    .post-nav .btn {
        width: 100%;
    }

    .post-tags .badge {
        font-size: 0.8rem;
        padding: 4px 8px;
    }

    .app-hero-section h1 {
        font-size: 1.75rem;
    }

    .app-install-section .badge.rounded-circle {
        width: 40px;
        height: 40px;
        font-size: 1rem;
    }

    .toc-box {
        padding: var(--space-sm) !important;
    }

    .qr-card img {
        max-width: 140px !important;
    }
}

:root {
    --color-accent: rgba(124, 58, 237, 0.98);
    --color-accent-dark: rgba(67, 56, 202, 0.98);
    --color-primary: rgba(124, 58, 237, 0.98);
    --color-primary-dark: rgba(67, 56, 202, 0.98);
    --color-primary-darker: rgba(37, 99, 235, 0.98);

    --color-border: rgba(124, 58, 237, 0.22);
    --color-border-soft: rgba(148, 163, 184, 0.35);

    --color-bg: rgba(248, 250, 252, 1);
    --color-bg-soft: rgba(255, 255, 255, 0.72);
    --color-bg-muted: rgba(226, 232, 240, 0.55);

    --color-text: rgba(15, 23, 42, 0.92);
    --color-text-muted: rgba(71, 85, 105, 0.92);
    --color-danger: rgba(220, 38, 38, 0.95);

    --gradient-hero: radial-gradient(1200px 500px at 20% 20%, rgba(124, 58, 237, 0.96), rgba(37, 99, 235, 0.86) 55%, rgba(14, 116, 144, 0.72) 100%),
                     linear-gradient(135deg, rgba(124, 58, 237, 0.95), rgba(59, 130, 246, 0.9));

    --radius-md: 18px;

    --transition-fast: 420ms cubic-bezier(0.2, 0.8, 0.2, 1);
    --transition-base: 430ms cubic-bezier(0.2, 0.8, 0.2, 1);
    --transition-slow: 650ms cubic-bezier(0.2, 0.8, 0.2, 1);

    --shadow-sm: 0 4px 12px rgba(0, 0, 0, 0.06);
    --shadow-md: 0 10px 30px -18px rgba(0, 0, 0, 0.25);
    --shadow-lg: 0 4px 8px rgba(0, 0, 0, 0.05), 0 20px 40px -10px rgba(0, 0, 0, 0.12);
    --shadow-primary: 0 4px 8px rgba(0, 0, 0, 0.05), 0 20px 40px -10px rgba(0, 0, 0, 0.12), 0 0 0 6px rgba(124, 58, 237, 0.09);

    --gradient-icon: linear-gradient(180deg, rgba(124, 58, 237, 0.95), rgba(59, 130, 246, 0.95));
}

@media (max-width: 575.98px) {
    .app-hero-section .row .col-lg-7 {
        text-align: center;
        color: var(--color-text, #0f172a);
        text-shadow: 0 1px 0 rgba(255, 255, 255, 0.65);
    }

    .app-hero-section .badge.bg-warning {
        font-size: 0.85rem;
        color: #2b1600;
        border-style: solid;
        border-color: rgba(255, 190, 76, 0.55);
        border-width: 0;
        border-radius: 16px;
        background: linear-gradient(135deg, rgba(255, 205, 86, 0.95) 0%, rgba(255, 160, 44, 0.95) 55%, rgba(255, 230, 160, 0.9) 100%);
        box-shadow:
            0 4px 10px rgba(0, 0, 0, 0.08),
            0 18px 38px -14px rgba(255, 153, 0, 0.55);
        transition: background-color 0.38s ease, box-shadow 0.38s ease, transform 0.38s ease, color 0.38s ease, filter 0.38s ease;
        filter: saturate(1.08) contrast(1.02);
        caret-color: #ff9f2f;
        accent-color: #ff8a00;
        opacity: 0.98;
        outline: 1px solid rgba(255, 190, 76, 0.25);
        outline-offset: 2px;
    }

    .contact-channels-section article,
    .contact-quick-section .contact-card {
        padding: var(--space-md) !important;

        border-radius: 18px;
        color: var(--color-text, #0f172a);
        background: linear-gradient(180deg, rgba(255, 255, 255, 0.78) 0%, rgba(255, 255, 255, 0.62) 100%);
        box-shadow:
            0 4px 8px rgba(0, 0, 0, 0.05),
            0 20px 40px -10px rgba(15, 23, 42, 0.14),
            0 1px 0 rgba(255, 255, 255, 0.65) inset;
        backdrop-filter: blur(10px) saturate(1.05);
        -webkit-backdrop-filter: blur(10px) saturate(1.05);

        transition: box-shadow 0.45s ease, transform 0.45s ease, background 0.45s ease, border-color 0.45s ease, filter 0.45s ease;
        filter: saturate(1.02);
        opacity: 0.98;
        text-shadow: 0 1px 0 rgba(255, 255, 255, 0.7);
        outline: 1px solid rgba(148, 163, 184, 0.18);
        outline-offset: 3px;

        border-style: solid;
        border-color: rgba(148, 163, 184, 0.22);
        border-width: 0;
    }
}