html {
    font-size: 14px;
    font-family: var(--font-sans);
    line-height: 1.55;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

@media (min-width: 768px) {
    html {
        font-size: 16px;
    }
}
.card:hover {
    transform: translateY(-3px);
    transition: all 0.2s ease-in-out;
    box-shadow: 0 0 10px rgba(255, 255, 255, 0.1);
}

/* Đảm bảo body & html full chiều cao */
html,
body {
    height: 100%;
    width:100%;
    margin: 0;
    padding: 0;
}

/* Bố cục tổng thể: body là flex container */
body {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    padding-top: 0px;
    /* bù cho topbar + navbar */
    background-color: var(--color-bg);
    color: var(--color-text);
    font-family: var(--font-sans);
    line-height: 1.55;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Nút, form focus */
.btn:focus,
.btn:active:focus,
.btn-link.nav-link:focus,
.form-control:focus,
.form-check-input:focus {
    box-shadow: 0 0 0 0.1rem var(--color-bg-primary), 0 0 0 0.25rem color-mix(in srgb, var(--color-primary) 75%, transparent);
}

/* Ảnh trong CKEditor / bài viết */
.ck-content img,
.article-content img,
.post-content img {
    max-width: 100% !important;
    height: auto !important;
    display: block;
    margin: 10px auto;
}

img.lt-no-invert {
    filter: none !important;
    -webkit-filter: none !important;
    mix-blend-mode: normal !important;
}

/* Bài viết chi tiết */
.post-detail {
    margin: 0 auto;
    padding: 20px;
    line-height: 1.6;
    font-size: 16px;
}

.post-detail h2 {
    margin-bottom: 10px;
}

.post-detail small {
    display: block;
    margin-bottom: 20px;
    color: var(--color-muted);
}

/* Thanh topbar cố định trên cùng */
.topbar {
    position: fixed;
    top: 0;
    left: 0;
    height: 30px;
    width: 100%;
    z-index: 1000;
    background-color: var(--color-primary);
    color: #fff;
    font-size: 14px;
    padding: 5px 15px;
    overflow-x: auto;
    overflow-y: hidden;
    white-space: nowrap;
    -webkit-overflow-scrolling: touch;
}

.topbar a {
    color: #fff;
    margin-right: 15px;
    text-decoration: none;
    flex: 0 0 auto;
}

.topbar::-webkit-scrollbar {
    height: 0;
}

/* Navbar */
.navbar {
    position: fixed;
    top: 30px;
    /* dưới topbar */
    left: 0;
    height: 70px;
    width: 100%;
    z-index: 999;
    background-color: color-mix(in srgb, var(--color-input-bg) 92%, transparent);
    border-bottom: 1px solid var(--color-border);
    backdrop-filter: blur(10px);
    transition: all 0.3s ease;
}

.navbar.shrink {
    top: 0;
    height: 60px;
    background-color: color-mix(in srgb, var(--color-bg-primary) 92%, transparent);
    border-bottom: 1px solid var(--color-border);
    opacity: 1;
}

.navbar-nav .nav-link {
    color: var(--color-text);
    font-weight: 500;
    margin-right: 15px;
}

.navbar-nav .nav-link:hover {
    color: var(--color-primary);
}

.lt-nav-actions {
    flex: 0 0 auto;
}

@media (max-width: 991.98px) {
    .navbar {
        height: auto;
    }

    .navbar.shrink {
        height: auto;
    }

    .navbar-collapse {
        background-color: var(--color-input-bg);
        border-top: 1px solid var(--color-border);
        margin-top: 8px;
        padding: 6px 0;
        max-height: calc(100vh - 120px);
        overflow-y: auto;
        -webkit-overflow-scrolling: touch;
    }

    .navbar-nav .nav-link {
        margin-right: 0;
        padding: 10px 12px;
    }

    .lt-nav-actions {
        gap: 6px !important;
    }
}

/* Card */
.card {
    background-color: var(--color-bg-primary);
    border-color: var(--color-border);
    border-radius: 12px;
    overflow: hidden;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    cursor: pointer;
}

.card:hover {
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
}

.card img {
    width: 100%;
    height: auto;
    transition: transform 0.3s ease;
}

.card-clickable:hover {
    transform: translateY(-10px) scale(1.05);
    box-shadow: 0 12px 25px rgba(0, 0, 0, 0.3);
}

.card-clickable:hover img {
    transform: scale(1.1);
}

.card-footer {
    background: transparent;
    border-top: none;
    color: var(--color-muted);
}

/* Nút download */
.btn-download {
    background-color: var(--color-primary);
    color: #fff;
    font-weight: 600;
}

/* Main chiếm phần giữa – đẩy footer xuống */
.lt-main {
    flex-grow: 1;
    display: block;
    padding-top: 120px;
    /* tránh bị che bởi navbar + topbar */
}

/* Footer */
.footer {
    margin-top: auto;
    background-color: var(--color-input-bg);
    color: var(--color-text);
    text-align: center;
    padding: 20px;
}

/* New footer (public layout) */
.lt-footer {
    background-color: var(--color-input-bg);
    color: var(--color-text);
    border-top: 1px solid var(--color-border);
}

.lt-footer-title {
    font-weight: 700;
    letter-spacing: 0.02em;
    text-transform: uppercase;
    color: var(--color-primary);
}

.lt-footer-muted {
    color: var(--color-muted) !important;
}

.lt-footer a {
    color: var(--color-text);
    text-decoration: none;
}

.lt-footer a:hover {
    color: var(--color-primary);
}

.lt-footer-social a {
    width: 44px;
    height: 44px;
    border-radius: 14px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: var(--color-bg-primary);
    border: 1px solid var(--color-border);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.lt-footer-social a:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 24px rgba(0, 0, 0, 0.12);
}

.lt-footer-social img {
    width: 22px;
    height: 22px;
    object-fit: contain;
}

.lt-footer-bottom {
    border-top: 1px solid var(--color-border);
    background: var(--color-primary-06);
}

[data-theme="dark"] .lt-footer-bottom {
    background: var(--color-primary-10);
}

/* Floating contact buttons */
.contact-buttons {
    position: fixed;
    right: 20px;
    bottom: 100px;
    display: flex;
    flex-direction: column;
    gap: 15px;
    z-index: 999;
}

.contact-btn {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 55px;
    height: 55px;
    border-radius: 50%;
    background-color: var(--color-primary);
    transition: transform 0.3s ease;
    overflow: hidden;
    /* tránh ảnh tràn */
    position: relative;
    /* tạo khung cố định cho animation */
}

.contact-btn img {
    width: 60%;
    height: 60%;
    object-fit: contain;
    position: absolute;
    /* icon đứng yên ở giữa khung */
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    /* căn giữa tuyệt đối */
    pointer-events: none;
}

.contact-btn:hover {
    transform: scale(1.12);
    box-shadow: 0 6px 14px rgba(0, 0, 0, 0.3);
}

.contact-btn.phone {
    background-color: #d4aa00;
}

.contact-btn.zalo {
    background-color: #0080ff;
}

.contact-btn.youtube {
    background-color: #ff0000;
}

/* Chat widget */
.lt-chat-widget {
    position: fixed;
    bottom: 20px;
    right: 20px;
    z-index: 1001;
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 12px;
}

.lt-chat-toggle {
    border-radius: 999px;
    padding: 10px 16px;
    font-weight: 600;
}

.lt-chat-panel {
    width: min(360px, calc(100vw - 32px));
    max-height: 520px;
    background: var(--color-bg-primary);
    border: 1px solid var(--color-border);
    border-radius: 20px;
    box-shadow: 0 18px 45px rgba(0, 0, 0, 0.25);
    display: none;
    flex-direction: column;
}

.lt-chat-widget.lt-chat-open .lt-chat-panel {
    display: flex;
}

.lt-chat-header {
    padding: 14px 16px;
    border-bottom: 1px solid var(--color-border);
}

.lt-chat-body {
    flex: 1;
    padding: 16px;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.lt-chat-footer {
    padding: 12px 16px 16px;
    border-top: 1px solid var(--color-border);
}

.lt-chat-msg {
    display: flex;
}

.lt-chat-msg.lt-chat-user {
    justify-content: flex-end;
}

.lt-chat-bubble {
    padding: 10px 14px;
    border-radius: 16px;
    max-width: 85%;
    background: var(--color-input-bg);
    color: var(--color-text);
    font-size: 0.95rem;
    white-space: pre-wrap;
    word-break: break-word;
}

.lt-chat-user .lt-chat-bubble {
    background: var(--color-primary);
    color: #fff;
}

.lt-chat-bot .lt-chat-bubble {
    background: var(--color-bg);
}

.lt-chat-status-error {
    color: #ff6b6b;
}

@media (max-width: 575.98px) {
    .lt-chat-widget {
        right: 12px;
        bottom: 12px;
    }

    .lt-chat-panel {
        width: calc(100vw - 24px);
        max-height: 75vh;
    }
}

/* Google Translate cleanup */
.goog-te-banner-frame.skiptranslate {
    display: none !important;
}

.goog-logo-link {
    display: none !important;
}

.goog-te-gadget span {
    display: none !important;
}

/* Download card */
.download-card {
    flex: 1;
    padding: 20px;
    border: 1px solid var(--color-border);
    border-radius: 10px;
    text-align: center;
    background: var(--color-bg-primary);
}

/* ================== Home Page (scoped) ================== */
.home-hero {
    position: relative;
    padding: 72px 0;
    overflow: hidden;
}

.home-hero-bg {
    position: absolute;
    inset: 0;
    background:
        radial-gradient(800px 400px at 20% 15%, var(--color-primary-18), transparent 60%),
        radial-gradient(700px 380px at 80% 30%, var(--color-primary-12), transparent 55%),
        linear-gradient(180deg, rgba(255, 255, 255, 0.0) 0%, rgba(255, 255, 255, 0.0) 100%);
    pointer-events: none;
}

[data-theme="dark"] .home-hero-bg {
    background:
        radial-gradient(800px 400px at 20% 15%, var(--color-primary-25), transparent 60%),
        radial-gradient(700px 380px at 80% 30%, var(--color-primary-18), transparent 55%),
        linear-gradient(180deg, rgba(0, 0, 0, 0.0) 0%, rgba(0, 0, 0, 0.0) 100%);
}

.home-mini-card {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 14px;
    border-radius: 14px;
    background: var(--color-bg-primary);
    border: 1px solid var(--color-border);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.home-mini-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 24px rgba(0, 0, 0, 0.12);
}

.home-mini-icon {
    width: 40px;
    height: 40px;
    border-radius: 12px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: var(--color-primary-12);
    color: var(--color-primary);
    font-size: 18px;
    flex: 0 0 auto;
}

[data-theme="dark"] .home-mini-icon {
    background: var(--color-primary-18);
}

.home-stat {
    padding: 14px;
    border-radius: 14px;
    background: var(--color-bg-primary);
    border: 1px solid var(--color-border);
}

.home-stat-value {
    font-weight: 800;
    letter-spacing: -0.02em;
    font-size: 22px;
    line-height: 1.1;
    color: var(--color-primary);
}

.home-icon-circle {
    width: 56px;
    height: 56px;
    border-radius: 16px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: var(--color-primary-12);
    color: var(--color-primary);
    font-size: 26px;
}

[data-theme="dark"] .home-icon-circle {
    background: var(--color-primary-18);
}

.home-icon-pill {
    width: 42px;
    height: 42px;
    border-radius: 14px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: var(--color-primary-12);
    color: var(--color-primary);
    font-size: 18px;
}

[data-theme="dark"] .home-icon-pill {
    background: var(--color-primary-18);
}

@media (max-width: 991.98px) {
    .home-hero {
        padding: 48px 0;
    }
}

/* ================== Introduce Page (scoped) ================== */
.intro-hero {
    position: relative;
    padding: 56px 0;
    overflow: hidden;
}

.intro-hero-bg {
    position: absolute;
    inset: 0;
    background:
        radial-gradient(850px 420px at 15% 10%, var(--color-primary-16), transparent 62%),
        radial-gradient(760px 420px at 85% 35%, var(--color-primary-10), transparent 60%);
    pointer-events: none;
}

[data-theme="dark"] .intro-hero-bg {
    background:
        radial-gradient(850px 420px at 15% 10%, var(--color-primary-22), transparent 62%),
        radial-gradient(760px 420px at 85% 35%, var(--color-primary-14), transparent 60%);
}

.intro-mini-card {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 14px;
    border-radius: 14px;
    background: var(--color-bg-primary);
    border: 1px solid var(--color-border);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.intro-mini-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 24px rgba(0, 0, 0, 0.12);
}

.intro-mini-icon {
    width: 40px;
    height: 40px;
    border-radius: 12px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: var(--color-primary-12);
    color: var(--color-primary);
    font-size: 18px;
    flex: 0 0 auto;
}

[data-theme="dark"] .intro-mini-icon {
    background: var(--color-primary-18);
}

.intro-icon-circle {
    width: 56px;
    height: 56px;
    border-radius: 16px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: var(--color-primary-12);
    color: var(--color-primary);
    font-size: 26px;
}

[data-theme="dark"] .intro-icon-circle {
    background: var(--color-primary-18);
}

.intro-section-alt {
    background: var(--color-primary-06);
    border-top: 1px solid var(--color-primary-10);
    border-bottom: 1px solid var(--color-primary-10);
}

[data-theme="dark"] .intro-section-alt {
    background: var(--color-primary-10);
    border-top: 1px solid var(--color-primary-16);
    border-bottom: 1px solid var(--color-primary-16);
}

.intro-list-item {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 12px 14px;
    border-radius: 14px;
    background: var(--color-bg-primary);
    border: 1px solid var(--color-border);
}

.intro-check {
    width: 34px;
    height: 34px;
    border-radius: 12px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: var(--color-primary-12);
    color: var(--color-primary);
    flex: 0 0 auto;
}

[data-theme="dark"] .intro-check {
    background: var(--color-primary-18);
}

.intro-stat {
    padding: 14px;
    border-radius: 14px;
    background: var(--color-bg-primary);
    border: 1px solid var(--color-border);
}

.intro-stat-value {
    font-weight: 800;
    letter-spacing: -0.02em;
    font-size: 22px;
    line-height: 1.1;
    color: var(--color-primary);
}

.intro-step {
    height: 100%;
    padding: 18px;
    border-radius: 18px;
    background: var(--color-bg-primary);
    border: 1px solid var(--color-border);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.intro-step:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 24px rgba(0, 0, 0, 0.12);
}

.intro-step-num {
    width: 44px;
    height: 44px;
    border-radius: 16px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: var(--color-primary-12);
    color: var(--color-primary);
    font-weight: 800;
    margin-bottom: 10px;
}

[data-theme="dark"] .intro-step-num {
    background: var(--color-primary-18);
}

.intro-cta {
    background: var(--color-primary-06);
    border-top: 1px solid var(--color-primary-10);
}

[data-theme="dark"] .intro-cta {
    background: var(--color-primary-10);
    border-top: 1px solid var(--color-primary-16);
}

@media (max-width: 991.98px) {
    .intro-hero {
        padding: 40px 0;
    }
}

.service-hero {
    position: relative;
    overflow: hidden;
}

.service-hero-bg {
    position: absolute;
    inset: 0;
    background:
        radial-gradient(860px 420px at 15% 10%, var(--color-primary-16), transparent 62%),
        radial-gradient(760px 420px at 85% 35%, var(--color-primary-10), transparent 60%);
    pointer-events: none;
}

[data-theme="dark"] .service-hero-bg {
    background:
        radial-gradient(860px 420px at 15% 10%, var(--color-primary-22), transparent 62%),
        radial-gradient(760px 420px at 85% 35%, var(--color-primary-14), transparent 60%);
}

.service-badge {
    background: var(--color-primary-12);
    color: var(--color-primary);
    border: 1px solid var(--color-primary-18);
    padding: 8px 12px;
    font-weight: 600;
}

[data-theme="dark"] .service-badge {
    background: var(--color-primary-16);
    border: 1px solid var(--color-primary-22);
}

.service-mini-card {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 14px;
    border-radius: 14px;
    background: var(--color-bg-primary);
    border: 1px solid var(--color-border);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.service-mini-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 24px rgba(0, 0, 0, 0.12);
}

.service-mini-icon {
    width: 40px;
    height: 40px;
    border-radius: 12px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: var(--color-primary-12);
    color: var(--color-primary);
    font-size: 18px;
    flex: 0 0 auto;
}

[data-theme="dark"] .service-mini-icon {
    background: var(--color-primary-18);
}

.service-card {
    padding: 18px;
    border-radius: 18px;
    background: var(--color-bg-primary);
    border: 1px solid var(--color-border);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.service-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 24px rgba(0, 0, 0, 0.12);
}

.service-icon {
    width: 56px;
    height: 56px;
    border-radius: 16px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: var(--color-primary-12);
    color: var(--color-primary);
    font-size: 26px;
    flex: 0 0 auto;
}

[data-theme="dark"] .service-icon {
    background: var(--color-primary-18);
}

.service-list-item {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 12px 14px;
    border-radius: 14px;
    background: var(--color-bg-primary);
    border: 1px solid var(--color-border);
}

.service-check {
    width: 34px;
    height: 34px;
    border-radius: 12px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: var(--color-primary-12);
    color: var(--color-primary);
    flex: 0 0 auto;
    font-weight: 800;
}

[data-theme="dark"] .service-check {
    background: var(--color-primary-18);
}

.service-section-alt {
    background: var(--color-primary-06);
    border-top: 1px solid var(--color-primary-10);
    border-bottom: 1px solid var(--color-primary-10);
}

[data-theme="dark"] .service-section-alt {
    background: var(--color-primary-10);
    border-top: 1px solid var(--color-primary-16);
    border-bottom: 1px solid var(--color-primary-16);
}

.service-step {
    height: 100%;
    padding: 18px;
    border-radius: 18px;
    background: var(--color-bg-primary);
    border: 1px solid var(--color-border);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.service-step:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 24px rgba(0, 0, 0, 0.12);
}

.service-step-num {
    width: 44px;
    height: 44px;
    border-radius: 16px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: var(--color-primary-12);
    color: var(--color-primary);
    font-weight: 800;
    margin-bottom: 10px;
}

[data-theme="dark"] .service-step-num {
    background: var(--color-primary-18);
}

.service-cta {
    background: var(--color-primary-06);
    border-top: 1px solid var(--color-primary-10);
}

[data-theme="dark"] .service-cta {
    background: var(--color-primary-10);
    border-top: 1px solid var(--color-primary-16);
}

.service-detail-hero {
    position: relative;
    overflow: hidden;
}

.service-detail-hero-bg {
    position: absolute;
    inset: 0;
    background:
        radial-gradient(880px 440px at 18% 12%, var(--color-primary-16), transparent 62%),
        radial-gradient(760px 420px at 85% 35%, var(--color-primary-10), transparent 60%);
    pointer-events: none;
}

[data-theme="dark"] .service-detail-hero-bg {
    background:
        radial-gradient(880px 440px at 18% 12%, var(--color-primary-22), transparent 62%),
        radial-gradient(760px 420px at 85% 35%, var(--color-primary-14), transparent 60%);
}

.service-detail-badge {
    background: var(--color-primary-12);
    color: var(--color-primary);
    border: 1px solid var(--color-primary-18);
    padding: 8px 12px;
    font-weight: 600;
}

[data-theme="dark"] .service-detail-badge {
    background: var(--color-primary-16);
    border: 1px solid var(--color-primary-22);
}

.service-detail-note {
    padding: 14px;
    border-radius: 16px;
    background: var(--color-primary-06);
    border: 1px solid var(--color-primary-10);
}

[data-theme="dark"] .service-detail-note {
    background: var(--color-primary-10);
    border: 1px solid var(--color-primary-16);
}

.service-detail-sticky {
    position: sticky;
    top: 92px;
}

.service-detail-alt {
    background: var(--color-primary-06);
    border-top: 1px solid var(--color-primary-10);
    border-bottom: 1px solid var(--color-primary-10);
}

[data-theme="dark"] .service-detail-alt {
    background: var(--color-primary-10);
    border-top: 1px solid var(--color-primary-16);
    border-bottom: 1px solid var(--color-primary-16);
}

@media (max-width: 991.98px) {
    .service-detail-sticky {
        position: static;
        top: auto;
    }
}

.feature-doc-hero {
    position: relative;
    overflow: hidden;
}

.feature-doc-hero-bg {
    position: absolute;
    inset: 0;
    background:
        radial-gradient(900px 460px at 20% 12%, var(--color-primary-16), transparent 62%),
        radial-gradient(820px 460px at 85% 30%, var(--color-primary-10), transparent 60%);
    pointer-events: none;
}

[data-theme="dark"] .feature-doc-hero-bg {
    background:
        radial-gradient(900px 460px at 20% 12%, var(--color-primary-22), transparent 62%),
        radial-gradient(820px 460px at 85% 30%, var(--color-primary-14), transparent 60%);
}

.feature-doc-search .input-group-text {
    background: var(--color-bg-primary);
    border: 1px solid var(--color-border);
}

.feature-doc-search .form-control {
    background: var(--color-bg-primary);
    border: 1px solid var(--color-border);
}

.feature-doc-search .btn {
    border: 1px solid var(--color-border);
}

.feature-doc-mini {
    padding: 14px;
    border-radius: 16px;
    background: var(--color-bg-primary);
    border: 1px solid var(--color-border);
}

.feature-doc-mini-label {
    font-size: 0.85rem;
    color: var(--color-text-secondary);
    margin-bottom: 6px;
}

.feature-doc-mini-value {
    font-weight: 800;
    letter-spacing: -0.02em;
    font-size: 22px;
    line-height: 1.1;
    color: var(--color-primary);
}

.feature-doc-sidebar {
    position: sticky;
    top: 92px;
    padding: 14px;
    border-radius: 16px;
    background: var(--color-bg-primary);
    border: 1px solid var(--color-border);
}

.feature-doc-sidebar-title {
    font-weight: 800;
    margin-bottom: 4px;
}

.feature-doc-sidebar-sub {
    font-size: 0.9rem;
    margin-bottom: 12px;
}

.feature-doc-sidebar-divider {
    height: 1px;
    background: var(--color-border);
    margin: 14px 0;
}

.feature-doc-tip {
    font-size: 0.95rem;
    line-height: 1.4;
}

.feature-doc-cat-list {
    display: grid;
    gap: 10px;
}

.feature-doc-cat {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    padding: 10px 12px;
    border-radius: 14px;
    background: transparent;
    border: 1px solid var(--color-border);
    color: var(--color-text-primary);
    text-align: left;
    transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease, border-color 0.2s ease;
}

.feature-doc-cat:hover {
    transform: translateY(-1px);
    box-shadow: 0 10px 24px rgba(0, 0, 0, 0.10);
}

.feature-doc-cat.active {
    background: var(--color-primary-10);
    border-color: var(--color-primary-25);
}

[data-theme="dark"] .feature-doc-cat.active {
    background: var(--color-primary-16);
    border-color: var(--color-primary-26);
}

.feature-doc-cat-count {
    font-size: 0.85rem;
    color: var(--color-text-secondary);
}

.feature-doc-list {
    display: grid;
    gap: 14px;
}

.feature-doc-item {
    border-radius: 18px;
    background: var(--color-bg-primary);
    border: 1px solid var(--color-border);
    overflow: hidden;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.feature-doc-item:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 24px rgba(0, 0, 0, 0.12);
}

.feature-doc-item-link {
    display: grid;
    grid-template-columns: 1fr 180px;
    gap: 14px;
    padding: 14px;
    color: inherit;
    text-decoration: none;
}

.feature-doc-item-main {
    min-width: 0;
}

.feature-doc-title-row {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 10px;
    margin-bottom: 6px;
}

.feature-doc-title {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    min-width: 0;
}

.feature-doc-icon {
    width: 34px;
    height: 34px;
    border-radius: 12px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: var(--color-primary-12);
    color: var(--color-primary);
    flex: 0 0 auto;
}

[data-theme="dark"] .feature-doc-icon {
    background: var(--color-primary-18);
}

.feature-doc-name {
    font-weight: 800;
    letter-spacing: -0.01em;
    line-height: 1.2;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.feature-doc-badge {
    background: var(--color-primary-12);
    color: var(--color-primary);
    border: 1px solid var(--color-primary-18);
    font-weight: 700;
}

[data-theme="dark"] .feature-doc-badge {
    background: var(--color-primary-16);
    border: 1px solid var(--color-primary-22);
}

.feature-doc-desc {
    color: var(--color-text-secondary);
    margin-bottom: 8px;
    display: -webkit-box;
    line-clamp: 2;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.feature-doc-meta {
    display: inline-flex;
    align-items: center;
    gap: 10px;
}

.feature-doc-meta-sep {
    color: var(--color-text-secondary);
}

.feature-doc-item-thumb {
    width: 180px;
    height: 120px;
    border-radius: 14px;
    overflow: hidden;
    border: 1px solid var(--color-border);
    background: var(--color-primary-06);
    align-self: center;
}

[data-theme="dark"] .feature-doc-item-thumb {
    background: var(--color-primary-10);
}

.feature-doc-item-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.feature-doc-empty {
    padding: 18px;
    border-radius: 18px;
    background: var(--color-primary-06);
    border: 1px solid var(--color-primary-10);
    margin-top: 14px;
}

[data-theme="dark"] .feature-doc-empty {
    background: var(--color-primary-10);
    border: 1px solid var(--color-primary-16);
}

.post-doc-hero {
    position: relative;
    overflow: hidden;
}

.post-doc-hero-bg {
    position: absolute;
    inset: 0;
    background:
        radial-gradient(900px 460px at 20% 12%, var(--color-primary-14), transparent 62%),
        radial-gradient(820px 460px at 85% 30%, var(--color-primary-10), transparent 60%);
    pointer-events: none;
}

[data-theme="dark"] .post-doc-hero-bg {
    background:
        radial-gradient(900px 460px at 20% 12%, var(--color-primary-20), transparent 62%),
        radial-gradient(820px 460px at 85% 30%, var(--color-primary-14), transparent 60%);
}

.post-doc-search .input-group-text {
    background: var(--color-bg-primary);
    border: 1px solid var(--color-border);
}

.post-doc-search .form-control {
    background: var(--color-bg-primary);
    border: 1px solid var(--color-border);
}

.post-doc-search .btn {
    border: 1px solid var(--color-border);
}

.post-doc-badge {
    background: var(--color-primary-12);
    color: var(--color-primary);
    border: 1px solid var(--color-primary-18);
    font-weight: 700;
}

[data-theme="dark"] .post-doc-badge {
    background: var(--color-primary-16);
    border: 1px solid var(--color-primary-22);
}

.post-doc-mini {
    padding: 14px;
    border-radius: 16px;
    background: var(--color-bg-primary);
    border: 1px solid var(--color-border);
}

.post-doc-mini-label {
    font-size: 0.85rem;
    color: var(--color-text-secondary);
    margin-bottom: 6px;
}

.post-doc-mini-value {
    font-weight: 800;
    letter-spacing: -0.02em;
    font-size: 22px;
    line-height: 1.1;
    color: var(--color-primary);
}

.post-doc-sidebar {
    position: sticky;
    top: 92px;
    padding: 14px;
    border-radius: 16px;
    background: var(--color-bg-primary);
    border: 1px solid var(--color-border);
}

.post-doc-sidebar-title {
    font-weight: 800;
    margin-bottom: 4px;
}

.post-doc-sidebar-sub {
    font-size: 0.9rem;
    margin-bottom: 12px;
}

.post-doc-sidebar-divider {
    height: 1px;
    background: var(--color-border);
    margin: 14px 0;
}

.post-doc-tip {
    font-size: 0.95rem;
    line-height: 1.4;
}

.post-doc-tag-list {
    display: grid;
    gap: 10px;
}

.post-doc-tag {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    padding: 10px 12px;
    border-radius: 14px;
    background: transparent;
    border: 1px solid var(--color-border);
    color: var(--color-text-primary);
    text-align: left;
    transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease, border-color 0.2s ease;
}

.post-doc-tag:hover {
    transform: translateY(-1px);
    box-shadow: 0 10px 24px rgba(0, 0, 0, 0.10);
}

.post-doc-tag.active {
    background: var(--color-primary-10);
    border-color: var(--color-primary-25);
}

[data-theme="dark"] .post-doc-tag.active {
    background: var(--color-primary-16);
    border-color: var(--color-primary-26);
}

.post-doc-tag-count {
    font-size: 0.85rem;
    color: var(--color-text-secondary);
}

.post-doc-list {
    display: grid;
    gap: 14px;
}

.post-doc-item {
    border-radius: 18px;
    background: var(--color-bg-primary);
    border: 1px solid var(--color-border);
    overflow: hidden;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.post-doc-item:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 24px rgba(0, 0, 0, 0.12);
}

.post-doc-item-link {
    display: grid;
    grid-template-columns: 1fr 180px;
    gap: 14px;
    padding: 14px;
    color: inherit;
    text-decoration: none;
}

.post-doc-item-main {
    min-width: 0;
}

.post-doc-title-row {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 10px;
    margin-bottom: 6px;
}

.post-doc-title {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    min-width: 0;
}

.post-doc-icon {
    width: 34px;
    height: 34px;
    border-radius: 12px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: var(--color-primary-12);
    color: var(--color-primary);
    flex: 0 0 auto;
}

[data-theme="dark"] .post-doc-icon {
    background: var(--color-primary-18);
}

.post-doc-name {
    font-weight: 800;
    letter-spacing: -0.01em;
    line-height: 1.2;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.post-doc-desc {
    color: var(--color-text-secondary);
    margin-bottom: 8px;
    display: -webkit-box;
    line-clamp: 2;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.post-doc-meta {
    display: inline-flex;
    align-items: center;
    gap: 10px;
}

.post-doc-meta-sep {
    color: var(--color-text-secondary);
}

.post-doc-item-thumb {
  width: 180px;
  height: 120px;
  border-radius: 14px;
  overflow: hidden;
  align-items: center; /* căn giữa theo chiều dọc */
  justify-content: center; /* căn giữa theo chiều ngang */
  border: 1px solid var(--color-border);
  background: var(--color-primary-06);
  align-self: center;
}

[data-theme="dark"] .post-doc-item-thumb {
    background: var(--color-primary-10);
}

.post-doc-item-thumb img {
  max-width: 100%;
  height: 100%;
  object-fit: contain;
  object-position: center;
  display: block;
}

.post-doc-empty {
    padding: 18px;
    border-radius: 18px;
    background: var(--color-primary-06);
    border: 1px solid var(--color-primary-10);
    margin-top: 14px;
}

[data-theme="dark"] .post-doc-empty {
    background: var(--color-primary-10);
    border: 1px solid var(--color-primary-16);
}

.post-detail-hero {
    position: relative;
    overflow: hidden;
}

.post-detail-hero-bg {
    position: absolute;
    inset: 0;
    background:
        radial-gradient(900px 460px at 20% 12%, var(--color-primary-12), transparent 62%),
        radial-gradient(820px 460px at 85% 30%, var(--color-primary-08), transparent 60%);
    pointer-events: none;
}

[data-theme="dark"] .post-detail-hero-bg {
    background:
        radial-gradient(900px 460px at 20% 12%, var(--color-primary-18), transparent 62%),
        radial-gradient(820px 460px at 85% 30%, var(--color-primary-12), transparent 60%);
}

.post-detail-card {
    border-radius: 18px;
    background: var(--color-bg-primary);
    border: 1px solid var(--color-border);
}

.post-content {
    color: var(--color-text-primary);
}

.post-content p {
    margin-bottom: 1.2rem;
    line-height: 1.8;
    color: var(--color-text-primary);
}

.post-content h2,
.post-content h3,
.post-content h4 {
    margin-top: 1.8rem;
    margin-bottom: 0.8rem;
    font-weight: 800;
}

.post-content img {
    max-width: 100%;
    border-radius: 12px;
    margin: 1rem 0;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.08);
}

.post-detail-sidebar {
    position: sticky;
    top: 92px;
}

.post-other-link {
    display: block;
    padding: 10px 12px;
    border-radius: 14px;
    border: 1px solid var(--color-border);
    background: var(--color-bg-primary);
    text-decoration: none;
    color: var(--color-text-primary);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.post-other-link:hover {
    transform: translateY(-1px);
    box-shadow: 0 10px 24px rgba(0, 0, 0, 0.10);
}

.contact-hero {
    position: relative;
    overflow: hidden;
}

.contact-hero-bg {
    position: absolute;
    inset: 0;
    background:
        radial-gradient(900px 460px at 20% 12%, var(--color-primary-14), transparent 62%),
        radial-gradient(820px 460px at 85% 30%, var(--color-primary-10), transparent 60%);
    pointer-events: none;
}

[data-theme="dark"] .contact-hero-bg {
    background:
        radial-gradient(900px 460px at 20% 12%, var(--color-primary-20), transparent 62%),
        radial-gradient(820px 460px at 85% 30%, var(--color-primary-14), transparent 60%);
}

.contact-card {
    border-radius: 18px;
    background: var(--color-bg-primary);
    border: 1px solid var(--color-border);
}

.contact-mini {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 12px 14px;
    border-radius: 16px;
    background: var(--color-bg-primary);
    border: 1px solid var(--color-border);
}

.contact-mini-icon {
    width: 40px;
    height: 40px;
    border-radius: 12px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: var(--color-primary-12);
    color: var(--color-primary);
    flex: 0 0 auto;
}

[data-theme="dark"] .contact-mini-icon {
    background: var(--color-primary-18);
}

@media (max-width: 991.98px) {
    .post-doc-sidebar {
        position: static;
        top: auto;
    }

    .post-detail-sidebar {
        position: static;
        top: auto;
    }
}

@media (max-width: 767.98px) {
    .post-doc-item-link {
        grid-template-columns: 1fr;
    }

    .post-doc-item-thumb {
        width: 100%;
        height: 160px;
        order: -1;
    }
}