/* ============================================
   1. Single Post (ArticleSection)
   ============================================ */
.single-post {
    overflow: hidden;
}

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

.single-post .post-meta i {
    color: var(--color-gold);
}

.post-content {
    line-height: 1.8;
    font-size: 1.05rem;
    color: var(--color-on-stage);
}

.post-content :is(h2, h3, h4) {
    margin-block: 2rem 1rem;
    font-weight: 700;
    color: var(--color-gold);
    line-height: 1.4;
}

.post-content h2 {
    font-size: 1.75rem;
    padding-bottom: var(--space-xs);
    border-bottom: 2px solid var(--color-gold);
    border-radius: 4px;
}

.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 var(--color-gold);
    padding: var(--space-sm) var(--space-md);
    background: var(--color-panel);
    border-radius: 0 4px 4px 0;
    margin-block: var(--space-md);
    color: var(--color-on-stage-muted);
    font-style: italic;
}

.post-content img {
    max-width: 100%;
    height: auto;
    border-radius: 4px;
    margin-block: var(--space-sm);
    box-shadow: none;
    outline: 1px solid var(--color-border-strong);
}

.post-content a {
    color: var(--color-gold);
    text-decoration: underline;
    transition: color 160ms cubic-bezier(.2,.8,.2,1);
}

.post-content a:hover {
    color: var(--color-gold-bright);
}

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

.post-content code {
    background: var(--color-code-bg);
    padding: 2px 6px;
    border-radius: 4px;
    font-size: 0.9em;
    color: var(--color-code-fg);
    outline: 1px solid rgba(255, 215, 128, 0.18);
}

.post-content pre {
    background: #140f1f;
    color: #f7f4ff;
    padding: var(--space-md);
    border-radius: 4px;
    overflow-x: auto;
    margin-block: var(--space-md);
    outline: 1px solid rgba(255, 215, 128, 0.18);
    box-shadow: none;
}

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

.post-content table {
    width: 100%;
    border-collapse: collapse;
    margin-block: var(--space-md);
}

.post-content table th,
.post-content table td {
    padding: var(--space-xs) var(--space-sm);
    border: 1px solid rgba(255, 215, 128, 0.22);
    text-align: start;
}

.post-content table th {
    background: rgba(255, 215, 128, 0.08);
    font-weight: 600;
    color: var(--color-on-stage);
}

.toc-box {
    border-inline-start: 3px solid var(--color-gold);
}

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

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

.toc-box ol li a {
    transition: color 160ms cubic-bezier(.2,.8,.2,1), text-decoration-color 160ms cubic-bezier(.2,.8,.2,1), padding-inline-start 160ms cubic-bezier(.2,.8,.2,1);
}

.toc-box ol li a:hover {
    color: var(--color-gold-bright);
    text-decoration: underline !important;
    padding-inline-start: 4px;
}

.post-tags .badge {
    background: rgba(255, 255, 255, 0.04) !important;
    color: rgba(226, 232, 240, 0.92) !important;
    padding: 6px 12px;
    font-weight: 500;
    transition: background-color 160ms cubic-bezier(.2,.8,.2,1), color 160ms cubic-bezier(.2,.8,.2,1), transform 160ms cubic-bezier(.2,.8,.2,1);
    border: 1px solid rgba(255, 215, 128, 0.16);
    border-radius: 6px;
    box-shadow: none !important;
}

.post-tags .badge:hover {
    background: rgba(255, 215, 128, 0.18) !important;
    color: #fff !important;
    transform: translateY(-1px);
    border-color: rgba(255, 215, 128, 0.35);
}

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

.post-nav .btn {
    max-width: 100%;
    overflow: hidden;
    text-overflow: ellipsis;
    border-radius: 6px;
}

/* ============================================
   2. App Hero (AppHeroSection)
   ============================================ */
.app-hero-section {
    background: #0f0f1a;
    color: #fff;
    position: relative;
    overflow: hidden;
    padding: 0;
}

.app-hero-section::before {
    content: '';
    position: absolute;
    inset: 0;
    background: rgba(15, 15, 26, 0.55);
    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-align: center;
}

.app-hero-section img {
    transition: transform 360ms cubic-bezier(.2,.8,.2,1);
    filter: none;
    border-radius: 6px;
    outline: 1px solid rgba(255, 215, 128, 0.18);
}

.app-hero-section img:hover {
    transform: translateY(-6px);
}

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

/* ============================================
   3. App QR (AppQrSection)
   ============================================ */
.app-qr-section {
    background: #131325;
}

.qr-card {
    transition: transform 200ms cubic-bezier(.2,.8,.2,1), border-color 200ms cubic-bezier(.2,.8,.2,1), background-color 200ms cubic-bezier(.2,.8,.2,1);
    border: 2px solid transparent;
    border-radius: 6px;
    background: rgba(255, 255, 255, 0.03);
    box-shadow: none;
}

.qr-card:hover {
    transform: scale(1.03);
    border-color: var(--color-gold);
    background: rgba(255, 215, 128, 0.08);
    box-shadow: none;
}

.qr-card img {
    image-rendering: pixelated;
    image-rendering: -moz-crisp-edges;
    image-rendering: crisp-edges;
    border-radius: 4px;
    outline: 1px solid rgba(255, 215, 128, 0.18);
}

/* ============================================
   4. App Install Steps (AppInstallSection)
   ============================================ */
.app-install-section {
    background: #131325;
}

.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;
    background: rgba(255, 215, 128, 0.12) !important;
    color: #ffe7b1 !important;
    border: 1px solid rgba(255, 215, 128, 0.28);
    border-radius: 6px;
}

.app-install-section .bg-white {
    transition: transform 220ms cubic-bezier(.2,.8,.2,1), border-color 220ms cubic-bezier(.2,.8,.2,1), background-color 220ms cubic-bezier(.2,.8,.2,1);
    position: relative;
    overflow: hidden;
    background: rgba(255, 255, 255, 0.05) !important;
    border: 1px solid rgba(255, 215, 128, 0.18);
    border-radius: 6px;
    color: #f7f4ff;
    box-shadow: none;
}

.app-install-section .bg-white:hover {
    transform: translateY(-5px);
    box-shadow: none;
    border-color: rgba(255, 215, 128, 0.35);
    background: rgba(255, 215, 128, 0.06) !important;
}

.app-install-section .bg-white::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: #d8a94a;
    transform: scaleY(0);
    transform-origin: top;
    transition: transform 220ms cubic-bezier(.2,.8,.2,1);
}

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

/* ============================================
   5. App Showcase (AppShowcaseSection)
   ============================================ */
.app-showcase-section {
    background: #0f0f1a;
}

.app-showcase-section img {
    transition: transform 360ms cubic-bezier(.2,.8,.2,1);
    filter: none;
    border-radius: 6px;
    outline: 1px solid rgba(255, 215, 128, 0.16);
}

.app-showcase-section img:hover {
    transform: translateY(-5px) rotate(-1deg);
}

.app-showcase-section .bg-white {
    transition: transform 220ms cubic-bezier(.2,.8,.2,1), border-color 220ms cubic-bezier(.2,.8,.2,1), background-color 220ms cubic-bezier(.2,.8,.2,1);
    border-inline-start: 3px solid transparent;
    border-radius: 6px;
    background: rgba(255, 255, 255, 0.04) !important;
    border: 1px solid rgba(255, 215, 128, 0.16);
    box-shadow: none;
}

.app-showcase-section .bg-white:hover {
    border-inline-start-color: var(--color-gold);
    transform: translateX(5px);
    box-shadow: none;
    background: rgba(255, 215, 128, 0.06) !important;
}

/* ============================================
   6. Contact Sections
   ============================================ */
.contact-channels-section {
    background: #0f0f1a;
}

.contact-channels-section article {
    transition: transform 220ms cubic-bezier(.2,.8,.2,1), box-shadow 220ms cubic-bezier(.2,.8,.2,1), border-color 220ms cubic-bezier(.2,.8,.2,1), background-color 220ms cubic-bezier(.2,.8,.2,1);
    border: 1px solid rgba(255, 215, 128, 0.18);
    border-radius: 6px;
    background: rgba(255, 255, 255, 0.03);
    box-shadow: none;
}

.contact-channels-section article:hover {
    transform: translateY(-5px);
    box-shadow: none;
    border-color: var(--color-gold);
    background: rgba(255, 215, 128, 0.06);
}

.contact-channels-section article ul li {
    transition: padding 140ms cubic-bezier(.2,.8,.2,1);
}

.contact-channels-section article ul li:hover {
    padding-inline-start: 4px;
}

.contact-quick-section {
    background: #131325;
}

.contact-quick-section .contact-card {
    transition: transform 220ms cubic-bezier(.2,.8,.2,1), border-color 220ms cubic-bezier(.2,.8,.2,1), background-color 220ms cubic-bezier(.2,.8,.2,1);
    border-radius: 6px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 215, 128, 0.16);
    box-shadow: none;
}

.contact-quick-section .contact-card:hover {
    transform: translateY(-5px);
    box-shadow: none;
    border-color: rgba(255, 215, 128, 0.35);
    background: rgba(255, 215, 128, 0.06);
}

.contact-quick-section .contact-card i {
    transition: transform 220ms cubic-bezier(.2,.8,.2,1), color 220ms cubic-bezier(.2,.8,.2,1);
    color: rgba(255, 215, 128, 0.92);
}

.contact-quick-section .contact-card:hover i {
    transform: scale(1.1) rotate(-5deg);
    color: #ffe7b1;
}

.contact-form-section {
    background: #131325;
}

.contact-form-section .form-control,
.contact-form-section .form-select {
    border: 2px solid rgba(255, 215, 128, 0.22);
    transition: border-color 160ms cubic-bezier(.2,.8,.2,1), background-color 160ms cubic-bezier(.2,.8,.2,1);
    border-radius: 6px;
    background: rgba(255, 255, 255, 0.03);
    color: #f7f4ff;
    box-shadow: none;
}

.contact-form-section .form-control:focus,
.contact-form-section .form-select:focus {
    border-color: var(--color-gold);
    box-shadow: none;
    background: rgba(255, 215, 128, 0.06);
}

.contact-form-section button[type="submit"] {
    transition: transform 220ms cubic-bezier(.2,.8,.2,1), border-color 220ms cubic-bezier(.2,.8,.2,1), background-color 220ms cubic-bezier(.2,.8,.2,1), color 220ms cubic-bezier(.2,.8,.2,1);
    border-radius: 6px;
}

.contact-form-section button[type="submit"]:hover {
    transform: translateY(-2px);
    box-shadow: none;
    border-color: rgba(255, 215, 128, 0.45);
    background: rgba(255, 215, 128, 0.14);
    color: #fff;
}

.contact-commitments-section {
    background: #131325;
}

.contact-commitments-section .bg-white {
    transition: transform 220ms cubic-bezier(.2,.8,.2,1), border-color 220ms cubic-bezier(.2,.8,.2,1), background-color 220ms cubic-bezier(.2,.8,.2,1);
    text-align: center;
    border-radius: 6px;
    background: rgba(255, 255, 255, 0.04) !important;
    border: 1px solid rgba(255, 215, 128, 0.16);
    box-shadow: none;
}

.contact-commitments-section .bg-white:hover {
    transform: translateY(-5px);
    box-shadow: none;
    border-color: rgba(255, 215, 128, 0.35);
    background: rgba(255, 215, 128, 0.06) !important;
}

.contact-commitments-section .bg-white i {
    transition: transform 220ms cubic-bezier(.2,.8,.2,1), color 220ms cubic-bezier(.2,.8,.2,1);
    color: rgba(255, 215, 128, 0.92);
}

.contact-commitments-section .bg-white:hover i {
    transform: scale(1.15);
    color: #ffe7b1;
}

/* ============================================
   7. Login / Signup Forms
   ============================================ */
main:has(> .container > .bg-white > form) .input-group-text {
    background-color: rgba(255, 255, 255, 0.03);
    border-color: rgba(255, 215, 128, 0.22);
    border-inline-end: none;
    border-radius: 6px 0 0 6px;
    color: rgba(226, 232, 240, 0.95);
    box-shadow: none;
}

main:has(> .container > .bg-white > form) .input-group .form-control {
    border-inline-start: none;
    background: rgba(255, 255, 255, 0.03);
    border-radius: 0 6px 6px 0;
    color: #f7f4ff;
}

main:has(> .container > .bg-white > form) .input-group:focus-within .input-group-text {
    border-color: var(--color-gold);
    background-color: rgba(255, 215, 128, 0.08);
}

main:has(> .container > .bg-white > form) .input-group:focus-within .form-control {
    border-color: var(--color-gold);
    background: rgba(255, 215, 128, 0.06);
}

main:has(> .container > .bg-white > form) .form-check-input:checked {
    background-color: var(--color-gold);
    border-color: var(--color-gold);
}

main:has(> .container > .bg-white > form) button[type="submit"] {
    transition: transform 220ms cubic-bezier(.2,.8,.2,1), background-color 220ms cubic-bezier(.2,.8,.2,1), border-color 220ms cubic-bezier(.2,.8,.2,1), color 220ms cubic-bezier(.2,.8,.2,1);
    font-weight: 600;
    border-radius: 6px;
}

main:has(> .container > .bg-white > form) button[type="submit"]:hover {
    transform: translateY(-2px);
    box-shadow: none;
    background: rgba(255, 215, 128, 0.14);
    border-color: rgba(255, 215, 128, 0.45);
    color: #fff;
}

/* ============================================
   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 220ms cubic-bezier(.2,.8,.2,1), background-color 220ms cubic-bezier(.2,.8,.2,1), border-color 220ms cubic-bezier(.2,.8,.2,1), color 220ms cubic-bezier(.2,.8,.2,1);
    border-radius: 6px;
    box-shadow: none;
}

.hero-buttons .btn:hover {
    transform: translateY(-3px);
    box-shadow: none;
}

.hero-buttons .btn-warning {
    background-color: rgba(255, 215, 128, 0.95);
    border-color: rgba(255, 215, 128, 0.95);
    color: #0f0f1a;
    font-weight: 700;
}

.hero-buttons .btn-warning:hover {
    background-color: rgba(255, 215, 128, 1);
    border-color: rgba(255, 215, 128, 1);
}

.hero-buttons .btn-outline-light:hover {
    background-color: rgba(255, 255, 255, 0.14);
    color: #fff;
    border-color: rgba(255, 215, 128, 0.35);
}

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

::-webkit-scrollbar-track {
    background: #11111f;
}

::-webkit-scrollbar-thumb {
    background: rgba(255, 215, 128, 0.72);
    border-radius: 5px;
    outline: 1px solid rgba(255, 215, 128, 0.18);
}

::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 215, 128, 0.92);
}

/* Firefox */
* {
    scrollbar-width: thin;
    scrollbar-color: rgba(255, 215, 128, 0.78) #11111f;
}

/* ============================================
   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;
        color: #000 !important;
    }

    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;
        outline: none !important;
        border-radius: 0 !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 cubic-bezier(.2,.8,.2,1);
}

.animate-pulse {
    animation: pulse 2s ease-in-out 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;
    }

    .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;
    }
}

/* ============================================
   Stage variables (visual identity only)
   ============================================ */
:root {
    --color-gold: #e0b35a;
    --color-gold-bright: #ffd27a;
    --color-on-stage: #f5f2ff;
    --color-on-stage-muted: rgba(226, 232, 240, 0.78);
    --color-panel: rgba(255, 215, 128, 0.08);
    --color-code-bg: rgba(224, 179, 90, 0.12);
    --color-code-fg: #ffe7b1;
    --color-border-strong: rgba(255, 215, 128, 0.22);
    --shadow-sm: none;
    --shadow-md: none;
    --shadow-lg: none;
    --shadow-primary: none;
    --color-primary: var(--color-gold);
    --color-primary-darker: #b98535;
    --color-primary-dark: #c9933a;
    --color-accent: #2b1b4d;
    --color-accent-dark: #23143b;
    --gradient-hero: #0f0f1a;
    --gradient-icon: #d8a94a;
    --color-bg: #0f0f1a;
    --color-bg-soft: #131325;
    --color-bg-muted: rgba(255, 255, 255, 0.03);
    --color-text: var(--color-on-stage);
    --color-text-muted: var(--color-on-stage-muted);
    --color-border: rgba(255, 215, 128, 0.22);
    --color-border-soft: rgba(255, 215, 128, 0.16);
    --transition-fast: 160ms cubic-bezier(.2,.8,.2,1);
    --transition-base: 220ms cubic-bezier(.2,.8,.2,1);
    --transition-slow: 360ms cubic-bezier(.2,.8,.2,1);
    --radius-md: 4px;
}

@media (max-width: 575.98px) {
  .app-hero-section .row .col-lg-7 {
    text-align: center;
    color: #f3f4f6;
    text-shadow: 0 1px 0 rgba(0, 0, 0, 0.35);
  }

  .app-hero-section .badge.bg-warning {
    font-size: 0.85rem;
    background-color: #2b1b10;
    color: #f2c14e;
    border-style: solid;
    border-color: #f2c14e;
    border-radius: 4px;
    box-shadow: none;
    opacity: 0.98;
    transition: color 180ms ease, background-color 180ms ease, border-color 180ms ease;
  }

  .contact-channels-section article,
  .contact-quick-section .contact-card {
    padding: var(--space-md) !important;
    background-color: #151528;
    color: #e7e9f3;
    border-style: solid;
    border-color: #2a2c4b;
    border-radius: 6px;
    box-shadow: none;
    opacity: 1;
    transition: background-color 180ms ease, color 180ms ease, border-color 180ms ease;
  }
}