/* ===== DEDICATED PAGES CSS ===== */

/* --- Page Hero Banner (Shared) --- */
.page-hero {
    position: relative; overflow: hidden;
    padding: 80px 0 60px;
    background: var(--primary-lighter);
}
.page-hero::before {
    content: ''; position: absolute; top: -50%; right: -20%;
    width: 600px; height: 600px;
    background: radial-gradient(circle, rgba(0,182,190,0.08) 0%, transparent 70%);
    border-radius: 50%; pointer-events: none;
}
.page-hero::after {
    content: ''; position: absolute; bottom: -30%; left: -15%;
    width: 500px; height: 500px;
    background: radial-gradient(circle, rgba(247,148,29,0.06) 0%, transparent 70%);
    border-radius: 50%; pointer-events: none;
}
.page-hero .container { position: relative; z-index: 2; text-align: center; }
.page-hero .section-label { margin-bottom: 20px; }
.page-hero .section-title {
    font-size: clamp(2rem, 4vw, 3rem);
    margin-bottom: 16px;
}
.page-hero .section-subtitle {
    margin: 0 auto; max-width: 640px;
}
.page-hero-breadcrumbs {
    display: inline-flex; align-items: center; gap: 8px;
    font-size: 0.85rem; color: var(--text-muted);
    margin-bottom: 24px;
}
.page-hero-breadcrumbs a { color: var(--primary); font-weight: 500; }
.page-hero-breadcrumbs a:hover { text-decoration: underline; }
.page-hero-breadcrumbs .sep { color: var(--gray-300); }

/* ===================================================================
   GIỚI THIỆU (About) Page
   =================================================================== */

/* Mission & Vision */
.about-mission { padding: 100px 0; background: var(--white); }
.about-mission .container {
    display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center;
}
.about-mission-content { animation: fadeInLeft 0.8s ease forwards; }
.about-mission-content .section-label { margin-bottom: 16px; }
.about-mission-content h2 {
    font-family: var(--font-heading); font-size: 2.2rem;
    font-weight: 700; color: var(--text-primary);
    margin-bottom: 20px; line-height: 1.3;
}
.about-mission-content p {
    font-size: 1rem; color: var(--text-secondary);
    line-height: 1.9; margin-bottom: 16px;
}
.about-mission-visual {
    position: relative; animation: fadeInRight 0.8s ease forwards;
}
.about-mission-visual .about-image-main {
    border-radius: var(--radius-2xl); box-shadow: var(--shadow-2xl);
    width: 100%; height: 460px; object-fit: cover;
    border: 4px solid var(--white);
}
.about-mission-visual .about-float-badge {
    position: absolute; bottom: -20px; left: -20px;
    background: var(--primary); color: var(--white);
    padding: 24px 32px; border-radius: var(--radius-xl);
    box-shadow: var(--shadow-primary); text-align: center;
}
.about-float-badge .badge-number {
    font-size: 2.8rem; font-weight: 800; line-height: 1;
    display: block;
}
.about-float-badge .badge-label {
    font-size: 0.82rem; font-weight: 500; opacity: 0.9;
    margin-top: 4px;
}

/* Core Values */
.about-values { padding: 100px 0; background: var(--gray-50); }
.about-values .section-header { text-align: center; margin-bottom: 64px; }
.about-values .section-header .section-subtitle { margin: 0 auto; }
.values-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 24px; }
.value-card {
    background: var(--white); border-radius: var(--radius-lg);
    padding: 36px 24px; text-align: center;
    box-shadow: var(--shadow-sm); border: 1px solid var(--gray-100);
    transition: var(--transition); position: relative; overflow: hidden;
}
.value-card::before {
    content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px;
    background: var(--primary); transform: scaleX(0); transition: var(--transition);
    transform-origin: left;
}
.value-card:hover { transform: translateY(-8px); box-shadow: var(--shadow-xl); border-color: var(--primary-light); }
.value-card:hover::before { transform: scaleX(1); }
.value-card .icon {
    width: 68px; height: 68px; margin: 0 auto 20px;
    background: var(--primary-light); border-radius: var(--radius-lg);
    display: flex; align-items: center; justify-content: center;
    font-size: 1.5rem; color: var(--primary); transition: var(--transition);
}
.value-card:hover .icon { background: var(--primary); color: var(--white); transform: scale(1.1) rotate(5deg); }
.value-card h3 { font-size: 1rem; font-weight: 700; margin-bottom: 10px; color: var(--text-primary); }
.value-card p { font-size: 0.83rem; color: var(--text-secondary); line-height: 1.7; }

/* Facilities */
.about-facilities { padding: 100px 0; background: var(--white); }
.about-facilities .section-header { text-align: center; margin-bottom: 56px; }
.about-facilities .section-header .section-subtitle { margin: 0 auto; }
.facilities-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.facility-item {
    display: flex; align-items: center; gap: 16px;
    background: var(--gray-50); border-radius: var(--radius-md);
    padding: 20px 24px; border: 1px solid var(--gray-100);
    transition: var(--transition);
}
.facility-item:hover { background: var(--primary-light); border-color: var(--primary-light); transform: translateX(4px); }
.facility-item i { font-size: 1.3rem; color: var(--primary); min-width: 32px; text-align: center; }
.facility-item span { font-size: 0.92rem; font-weight: 500; color: var(--text-primary); }

/* Certifications */
.about-certs { padding: 100px 0; background: var(--gray-50); }
.about-certs .section-header { text-align: center; margin-bottom: 56px; }
.about-certs .section-header .section-subtitle { margin: 0 auto; }
.certs-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 20px; }
.cert-badge {
    background: var(--white); border-radius: var(--radius-lg);
    padding: 28px 20px; text-align: center;
    border: 1px solid var(--gray-100); transition: var(--transition);
}
.cert-badge:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); border-color: var(--primary-light); }
.cert-badge i {
    font-size: 2rem; color: var(--primary); margin-bottom: 12px;
    display: block;
}
.cert-badge span { font-size: 0.82rem; color: var(--text-secondary); line-height: 1.5; font-weight: 500; }

/* About Stats */
.about-stats { padding: 80px 0; background: var(--primary); }
.about-stats-grid {
    display: grid; grid-template-columns: repeat(4, 1fr); gap: 40px;
    text-align: center; color: var(--white);
}
.about-stat-item .stat-number {
    font-size: 3rem; font-weight: 800; line-height: 1;
    display: block; margin-bottom: 8px;
}
.about-stat-item .stat-label {
    font-size: 0.9rem; opacity: 0.85; font-weight: 500;
}

/* ===================================================================
   BẢNG GIÁ (Pricing) Page
   =================================================================== */

.pricing-section { padding: 80px 0; }
.pricing-section:nth-child(odd) { background: var(--white); }
.pricing-section:nth-child(even) { background: var(--gray-50); }

.pricing-section .section-header {
    display: flex; align-items: center; gap: 16px;
    margin-bottom: 32px;
}
.pricing-section .section-header .pricing-icon {
    width: 52px; height: 52px; min-width: 52px;
    background: var(--primary-light); border-radius: var(--radius-lg);
    display: flex; align-items: center; justify-content: center;
    font-size: 1.3rem; color: var(--primary);
}
.pricing-section .section-header h2 {
    font-family: var(--font-heading); font-size: 1.6rem;
    font-weight: 700; color: var(--text-primary); margin: 0;
}

.pricing-table-premium {
    background: var(--white); border-radius: var(--radius-xl);
    overflow: hidden; box-shadow: var(--shadow-lg); border: 1px solid var(--gray-100);
}
.pricing-table-premium .table-head {
    display: grid; grid-template-columns: 2.5fr 1fr;
    background: var(--primary); color: var(--white);
    padding: 18px 32px; font-weight: 600; font-size: 0.92rem;
}
.pricing-table-premium .table-row {
    display: grid; grid-template-columns: 2.5fr 1fr;
    padding: 16px 32px; border-bottom: 1px solid var(--gray-100);
    transition: var(--transition); align-items: center;
}
.pricing-table-premium .table-row:last-child { border-bottom: none; }
.pricing-table-premium .table-row:hover { background: var(--primary-lighter); }
.pricing-table-premium .table-row .svc-name {
    font-weight: 600; color: var(--text-primary); font-size: 0.95rem;
    display: flex; align-items: center; gap: 10px;
}
.pricing-table-premium .table-row .svc-name i {
    color: var(--primary); font-size: 0.75rem;
}
.pricing-table-premium .table-row .svc-price {
    font-weight: 700; color: var(--primary); font-size: 0.95rem;
}
.pricing-table-premium .table-row .svc-price.free {
    color: var(--success); font-weight: 800;
}

/* Pricing promo cards */
.pricing-promos { padding: 80px 0; background: var(--gray-50); }
.pricing-promos .section-header { text-align: center; margin-bottom: 48px; }
.pricing-promos .section-header .section-subtitle { margin: 0 auto; }
.promos-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.promo-card {
    background: var(--white); border-radius: var(--radius-lg);
    padding: 32px 28px; text-align: center;
    box-shadow: var(--shadow-sm); border: 1px solid var(--gray-100);
    transition: var(--transition); position: relative; overflow: hidden;
}
.promo-card::before {
    content: ''; position: absolute; top: 0; left: 0; right: 0; height: 4px;
    background: linear-gradient(90deg, var(--primary), var(--accent));
}
.promo-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-xl); }
.promo-card .promo-icon {
    width: 60px; height: 60px; margin: 0 auto 18px;
    background: var(--accent-light); border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    font-size: 1.4rem; color: var(--accent);
}
.promo-card h3 { font-size: 1rem; font-weight: 700; margin-bottom: 8px; color: var(--text-primary); }
.promo-card p { font-size: 0.85rem; color: var(--text-secondary); line-height: 1.7; }

/* Pricing Note Banner */
.pricing-note-banner {
    background: var(--primary-light); border: 1px solid rgba(0,182,190,0.15);
    border-radius: var(--radius-lg); padding: 24px 32px;
    display: flex; align-items: center; gap: 16px;
    margin-bottom: 48px;
}
.pricing-note-banner i { font-size: 1.5rem; color: var(--primary); min-width: 32px; }
.pricing-note-banner p { font-size: 0.92rem; color: var(--text-secondary); line-height: 1.7; margin: 0; }

/* ===================================================================
   ĐẶT LỊCH (Booking) Page
   =================================================================== */

.booking-page-main { padding: 80px 0; background: var(--white); }
.booking-page-grid {
    display: grid; grid-template-columns: 1.2fr 1fr; gap: 60px; align-items: start;
}

/* Booking Form Card */
.booking-form-card {
    background: var(--white); border-radius: var(--radius-xl);
    padding: 48px; box-shadow: var(--shadow-xl);
    border: 1px solid var(--gray-100); position: relative; overflow: hidden;
}
.booking-form-card::before {
    content: ''; position: absolute; top: 0; left: 0; right: 0; height: 4px;
    background: linear-gradient(90deg, var(--primary), var(--accent));
}
.booking-form-card .form-header { margin-bottom: 32px; }
.booking-form-card .form-header h2 {
    font-family: var(--font-heading); font-size: 1.5rem;
    font-weight: 700; margin-bottom: 8px; color: var(--text-primary);
}
.booking-form-card .form-header p { color: var(--text-muted); font-size: 0.9rem; }
.booking-page-form { display: grid; gap: 18px; }
.booking-page-form .form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.booking-page-form .form-group { position: relative; }
.booking-page-form .form-group label {
    display: block; font-size: 0.82rem; font-weight: 600;
    color: var(--text-secondary); margin-bottom: 8px;
    text-transform: uppercase; letter-spacing: 0.5px;
}
.booking-page-form input,
.booking-page-form select,
.booking-page-form textarea {
    width: 100%; padding: 14px 18px; border: 2px solid var(--gray-200);
    border-radius: var(--radius-md); font-size: 0.9rem; font-family: inherit;
    transition: var(--transition); background: var(--gray-50); color: var(--text-primary);
}
.booking-page-form select {
    appearance: none; -webkit-appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%238896AB' d='M6 8.825L.35 3.175l.7-.7L6 7.425l4.95-4.95.7.7z'/%3E%3C/svg%3E");
    background-repeat: no-repeat; background-position: right 16px center; padding-right: 40px;
}
.booking-page-form textarea { min-height: 100px; resize: vertical; }
.booking-page-form input:focus,
.booking-page-form select:focus,
.booking-page-form textarea:focus {
    outline: none; border-color: var(--primary); background: var(--white);
    box-shadow: 0 0 0 4px rgba(0,182,190,0.08);
}
.booking-page-form .btn-primary { width: 100%; justify-content: center; padding: 16px; font-size: 1rem; }

/* Booking Sidebar Info */
.booking-sidebar { display: flex; flex-direction: column; gap: 24px; }
.booking-info-card {
    background: var(--gray-50); border-radius: var(--radius-lg);
    padding: 28px; border: 1px solid var(--gray-100);
    transition: var(--transition);
}
.booking-info-card:hover { border-color: var(--primary-light); background: var(--primary-lighter); }
.booking-info-card .card-icon {
    width: 52px; height: 52px; margin-bottom: 16px;
    background: var(--primary-light); border-radius: var(--radius-lg);
    display: flex; align-items: center; justify-content: center;
    font-size: 1.3rem; color: var(--primary); transition: var(--transition);
}
.booking-info-card:hover .card-icon { background: var(--primary); color: var(--white); }
.booking-info-card h3 { font-size: 1rem; font-weight: 700; margin-bottom: 8px; color: var(--text-primary); }
.booking-info-card p { font-size: 0.88rem; color: var(--text-secondary); line-height: 1.7; }
.booking-info-card a { color: var(--primary); font-weight: 600; }
.booking-info-card a:hover { text-decoration: underline; }

/* Booking Notes */
.booking-notes { padding: 80px 0; background: var(--gray-50); }
.booking-notes .container { max-width: 900px; }
.booking-notes .section-header { text-align: center; margin-bottom: 40px; }
.booking-notes-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
.booking-note-item {
    display: flex; align-items: flex-start; gap: 14px;
    background: var(--white); border-radius: var(--radius-md);
    padding: 20px; border: 1px solid var(--gray-100);
    transition: var(--transition);
}
.booking-note-item:hover { border-color: var(--primary-light); transform: translateX(4px); }
.booking-note-item .note-icon {
    width: 40px; height: 40px; min-width: 40px;
    background: var(--accent-light); border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    font-size: 0.85rem; color: var(--accent);
}
.booking-note-item p { font-size: 0.9rem; color: var(--text-secondary); line-height: 1.6; }

/* ===================================================================
   LIÊN HỆ (Contact) Page
   =================================================================== */

.contact-main { padding: 80px 0; background: var(--white); }
.contact-grid {
    display: grid; grid-template-columns: 1fr 1.2fr; gap: 60px; align-items: start;
}

/* Contact Info Column */
.contact-info { display: flex; flex-direction: column; gap: 24px; }
.contact-info-card {
    display: flex; align-items: flex-start; gap: 20px;
    background: var(--gray-50); border-radius: var(--radius-lg);
    padding: 28px; border: 1px solid var(--gray-100);
    transition: var(--transition);
}
.contact-info-card:hover { background: var(--primary-lighter); border-color: var(--primary-light); transform: translateX(4px); }
.contact-info-card .contact-icon {
    width: 56px; height: 56px; min-width: 56px;
    background: var(--primary-light); border-radius: var(--radius-lg);
    display: flex; align-items: center; justify-content: center;
    font-size: 1.3rem; color: var(--primary); transition: var(--transition);
}
.contact-info-card:hover .contact-icon { background: var(--primary); color: var(--white); transform: scale(1.05); }
.contact-info-card h3 { font-size: 1rem; font-weight: 700; margin-bottom: 6px; color: var(--text-primary); }
.contact-info-card p { font-size: 0.9rem; color: var(--text-secondary); line-height: 1.6; }
.contact-info-card a { color: var(--primary); font-weight: 600; }
.contact-info-card a:hover { text-decoration: underline; }

.contact-social-row {
    display: flex; gap: 12px; margin-top: 8px;
}
.contact-social-row a {
    width: 44px; height: 44px; border-radius: 50%;
    background: var(--primary-light); display: flex; align-items: center;
    justify-content: center; color: var(--primary); font-size: 1.1rem;
    transition: var(--transition); border: 1px solid var(--gray-100);
}
.contact-social-row a:hover { background: var(--primary); color: var(--white); transform: translateY(-3px); box-shadow: var(--shadow-primary); }

/* Contact Form Column */
.contact-form-card {
    background: var(--white); border-radius: var(--radius-xl);
    padding: 48px; box-shadow: var(--shadow-xl);
    border: 1px solid var(--gray-100); position: relative; overflow: hidden;
}
.contact-form-card::before {
    content: ''; position: absolute; top: 0; left: 0; right: 0; height: 4px;
    background: linear-gradient(90deg, var(--primary), var(--accent));
}
.contact-form-card .form-header { margin-bottom: 28px; }
.contact-form-card .form-header h2 {
    font-family: var(--font-heading); font-size: 1.5rem;
    font-weight: 700; margin-bottom: 8px; color: var(--text-primary);
}
.contact-form-card .form-header p { color: var(--text-muted); font-size: 0.9rem; }
.contact-form { display: grid; gap: 18px; }
.contact-form .form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.contact-form .form-group label {
    display: block; font-size: 0.82rem; font-weight: 600;
    color: var(--text-secondary); margin-bottom: 8px;
    text-transform: uppercase; letter-spacing: 0.5px;
}
.contact-form input,
.contact-form select,
.contact-form textarea {
    width: 100%; padding: 14px 18px; border: 2px solid var(--gray-200);
    border-radius: var(--radius-md); font-size: 0.9rem; font-family: inherit;
    transition: var(--transition); background: var(--gray-50); color: var(--text-primary);
}
.contact-form textarea { min-height: 120px; resize: vertical; }
.contact-form input:focus,
.contact-form select:focus,
.contact-form textarea:focus {
    outline: none; border-color: var(--primary); background: var(--white);
    box-shadow: 0 0 0 4px rgba(0,182,190,0.08);
}
.contact-form .btn-primary { width: 100%; justify-content: center; padding: 16px; font-size: 1rem; }

/* Contact Map */
.contact-map { padding: 0; }
.contact-map iframe {
    width: 100%; height: 450px; border: none;
    display: block;
}

/* ===================================================================
   RESPONSIVE
   =================================================================== */
@media (max-width: 1024px) {
    .about-mission .container { grid-template-columns: 1fr; gap: 40px; }
    .about-mission-visual .about-float-badge { bottom: 10px; left: 10px; }
    .values-grid { grid-template-columns: repeat(3, 1fr); }
    .certs-grid { grid-template-columns: repeat(3, 1fr); }
    .about-stats-grid { grid-template-columns: repeat(2, 1fr); gap: 32px; }
    .booking-page-grid { grid-template-columns: 1fr; }
    .booking-sidebar { order: -1; }
    .contact-grid { grid-template-columns: 1fr; }
    .promos-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
    .page-hero { padding: 60px 0 40px; }
    .values-grid { grid-template-columns: repeat(2, 1fr); }
    .facilities-grid { grid-template-columns: 1fr; }
    .certs-grid { grid-template-columns: repeat(2, 1fr); }
    .about-stats-grid { grid-template-columns: repeat(2, 1fr); }
    .about-mission-visual .about-image-main { height: 320px; }
    .booking-form-card { padding: 28px 24px; }
    .booking-page-form .form-row { grid-template-columns: 1fr; }
    .booking-notes-grid { grid-template-columns: 1fr; }
    .contact-form-card { padding: 28px 24px; }
    .contact-form .form-row { grid-template-columns: 1fr; }
    .promos-grid { grid-template-columns: 1fr; }
    .pricing-table-premium .table-head,
    .pricing-table-premium .table-row { padding: 14px 20px; font-size: 0.88rem; }
    .pricing-note-banner { flex-direction: column; text-align: center; }
    .contact-map iframe { height: 300px; }
    .booking-sidebar { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
}

@media (max-width: 480px) {
    .values-grid { grid-template-columns: 1fr; }
    .certs-grid { grid-template-columns: 1fr; }
    .about-stats-grid { grid-template-columns: 1fr; }
    .booking-sidebar { grid-template-columns: 1fr; }
}

/* ===================================================================
   KIẾN THỨC NHA KHOA (Knowledge / Blog)
   =================================================================== */

/* --- Knowledge Listing --- */
.knowledge-listing { padding: 80px 0; background: var(--white); }
.knowledge-layout {
    display: grid; grid-template-columns: 1fr 340px; gap: 48px; align-items: start;
}

.knowledge-filter-active {
    display: flex; align-items: center; justify-content: space-between;
    background: var(--primary-light); border: 1px solid rgba(0,182,190,0.15);
    border-radius: var(--radius-md); padding: 14px 20px;
    margin-bottom: 28px; font-size: 0.9rem; color: var(--text-secondary);
}

/* Knowledge Grid */
.knowledge-grid {
    display: grid; grid-template-columns: repeat(2, 1fr); gap: 28px;
}

/* Knowledge Card */
.knowledge-card {
    background: var(--white); border-radius: var(--radius-lg); overflow: hidden;
    box-shadow: var(--shadow-sm); border: 1px solid var(--gray-100);
    transition: var(--transition); position: relative;
}
.knowledge-card::before {
    content: ''; position: absolute; top: 0; left: 0; right: 0; height: 4px;
    background: var(--primary); transform: scaleX(0);
    transform-origin: left; transition: var(--transition); z-index: 2;
}
.knowledge-card:hover { transform: translateY(-8px); box-shadow: var(--shadow-xl); border-color: transparent; }
.knowledge-card:hover::before { transform: scaleX(1); }

.knowledge-card-image {
    display: block; height: 200px; overflow: hidden; position: relative;
}
.knowledge-card-image img {
    width: 100%; height: 100%; object-fit: cover; transition: var(--transition-slow);
}
.knowledge-card:hover .knowledge-card-image img { transform: scale(1.08); }
.knowledge-tag {
    position: absolute; top: 14px; left: 14px;
    background: var(--primary); color: var(--white);
    padding: 5px 14px; border-radius: var(--radius-full);
    font-size: 0.72rem; font-weight: 600; letter-spacing: 0.3px;
}

.knowledge-card-content { padding: 24px; }
.knowledge-card-meta {
    display: flex; gap: 16px; margin-bottom: 12px;
    font-size: 0.78rem; color: var(--text-muted);
}
.knowledge-card-meta i { margin-right: 4px; }
.knowledge-card-title {
    font-size: 1.05rem; font-weight: 700; margin-bottom: 10px;
    color: var(--text-primary); line-height: 1.4;
}
.knowledge-card-title a { color: inherit; }
.knowledge-card-title a:hover { color: var(--primary); }
.knowledge-card-excerpt {
    font-size: 0.88rem; color: var(--text-secondary);
    line-height: 1.7; margin-bottom: 16px;
}
.knowledge-card-link {
    display: inline-flex; align-items: center; gap: 6px;
    color: var(--primary); font-weight: 600; font-size: 0.86rem;
}
.knowledge-card-link i { transition: var(--transition); font-size: 0.78rem; }
.knowledge-card:hover .knowledge-card-link i { transform: translateX(5px); }

/* Knowledge Pagination */
.knowledge-pagination { margin-top: 48px; text-align: center; }
.knowledge-pagination .nav-links {
    display: flex; justify-content: center; gap: 6px; flex-wrap: wrap;
}
.knowledge-pagination .page-numbers {
    display: inline-flex; align-items: center; justify-content: center;
    width: 42px; height: 42px; border-radius: var(--radius-sm);
    font-size: 0.9rem; font-weight: 600; color: var(--text-secondary);
    border: 1px solid var(--gray-200); transition: var(--transition);
    background: var(--white);
}
.knowledge-pagination .page-numbers.current,
.knowledge-pagination .page-numbers:hover {
    background: var(--primary); color: var(--white);
    border-color: var(--primary);
}
.knowledge-pagination .prev, .knowledge-pagination .next {
    width: auto; padding: 0 16px; gap: 6px;
}

/* Knowledge Empty */
.knowledge-empty {
    text-align: center; padding: 80px 20px;
    background: var(--gray-50); border-radius: var(--radius-xl);
    border: 2px dashed var(--gray-200);
}
.knowledge-empty i { font-size: 3rem; color: var(--primary); opacity: 0.3; margin-bottom: 20px; }
.knowledge-empty h3 { font-size: 1.3rem; font-weight: 700; color: var(--text-primary); margin-bottom: 8px; }
.knowledge-empty p { color: var(--text-secondary); margin-bottom: 28px; }

/* --- Sidebar --- */
.knowledge-sidebar { position: sticky; top: 100px; }
.sidebar-widget {
    background: var(--white); border-radius: var(--radius-lg);
    padding: 28px; margin-bottom: 24px;
    box-shadow: var(--shadow-sm); border: 1px solid var(--gray-100);
}
.sidebar-widget-title {
    font-size: 1rem; font-weight: 700; color: var(--text-primary);
    margin-bottom: 20px; padding-bottom: 12px;
    border-bottom: 2px solid var(--primary-light);
    display: flex; align-items: center; gap: 8px;
}
.sidebar-widget-title i { color: var(--primary); font-size: 0.9rem; }

/* Sidebar Categories */
.sidebar-categories { list-style: none; padding: 0; margin: 0; }
.sidebar-categories li { margin-bottom: 4px; }
.sidebar-categories li a {
    display: flex; align-items: center; gap: 8px;
    padding: 10px 14px; border-radius: var(--radius-sm);
    font-size: 0.88rem; color: var(--text-secondary);
    transition: var(--transition); font-weight: 500;
}
.sidebar-categories li a i { font-size: 0.65rem; color: var(--primary); transition: var(--transition); }
.sidebar-categories li a .count {
    margin-left: auto; background: var(--gray-100);
    padding: 2px 10px; border-radius: var(--radius-full);
    font-size: 0.75rem; font-weight: 600; color: var(--text-muted);
}
.sidebar-categories li a:hover,
.sidebar-categories li.active a {
    background: var(--primary-light); color: var(--primary);
}
.sidebar-categories li a:hover i,
.sidebar-categories li.active a i { transform: translateX(3px); }
.sidebar-categories li.active a .count {
    background: var(--primary); color: var(--white);
}

/* Sidebar Post Items */
.sidebar-post-item {
    display: flex; gap: 14px; padding: 12px 0;
    border-bottom: 1px solid var(--gray-100);
}
.sidebar-post-item:last-child { border-bottom: none; }
.sidebar-post-thumb {
    width: 70px; min-width: 70px; height: 55px;
    border-radius: var(--radius-sm); overflow: hidden;
}
.sidebar-post-thumb img {
    width: 100%; height: 100%; object-fit: cover;
}
.sidebar-post-info h4 {
    font-size: 0.85rem; font-weight: 600; color: var(--text-primary);
    line-height: 1.4; margin-bottom: 4px;
}
.sidebar-post-info h4 a { color: inherit; }
.sidebar-post-info h4 a:hover { color: var(--primary); }
.sidebar-post-date {
    font-size: 0.75rem; color: var(--text-muted);
}
.sidebar-post-date i { margin-right: 4px; }

/* Sidebar CTA */
.sidebar-cta {
    background: var(--primary) !important; color: var(--white);
    text-align: center; border-color: var(--primary) !important;
}
.sidebar-cta .sidebar-cta-icon {
    width: 60px; height: 60px; margin: 0 auto 16px;
    background: rgba(255,255,255,0.15); border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    font-size: 1.5rem;
}
.sidebar-cta h3 { color: var(--white); font-size: 1.1rem; margin-bottom: 8px; }
.sidebar-cta p { color: rgba(255,255,255,0.85); font-size: 0.88rem; margin-bottom: 20px; line-height: 1.6; }
.sidebar-cta .btn-primary {
    background: var(--white); color: var(--primary);
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}
.sidebar-cta .btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 20px rgba(0,0,0,0.15); }

/* --- Single Article Styles --- */
.article-hero {
    padding: 80px 0 40px;
    background: var(--primary-lighter);
}
.article-hero-content { max-width: 800px; }
.article-category-badge {
    display: inline-flex; align-items: center; gap: 6px;
    background: var(--primary-light); color: var(--primary);
    padding: 6px 16px; border-radius: var(--radius-full);
    font-size: 0.78rem; font-weight: 600; margin-bottom: 16px;
    border: 1px solid rgba(0,182,190,0.15);
}
.article-category-badge:hover { background: var(--primary); color: var(--white); }
.article-title {
    font-family: var(--font-heading);
    font-size: clamp(1.6rem, 3.5vw, 2.4rem);
    font-weight: 800; line-height: 1.3;
    color: var(--text-primary); margin-bottom: 20px;
}
.article-meta {
    display: flex; flex-wrap: wrap; gap: 20px;
    font-size: 0.85rem; color: var(--text-muted);
}
.article-meta-item { display: flex; align-items: center; gap: 6px; }
.article-meta-item i { color: var(--primary); font-size: 0.8rem; }

.article-section { padding: 60px 0 80px; background: var(--white); }
.article-main { min-width: 0; }

.article-featured-image {
    margin-bottom: 36px; border-radius: var(--radius-xl);
    overflow: hidden; box-shadow: var(--shadow-lg);
}
.article-featured-image img {
    width: 100%; height: auto; display: block;
}

/* Article Footer Meta */
.article-footer-meta {
    margin-top: 48px; padding-top: 28px;
    border-top: 1px solid var(--gray-200);
    display: flex; justify-content: space-between; align-items: center;
    flex-wrap: wrap; gap: 20px;
}
.article-tags { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.tags-label, .share-label {
    font-size: 0.85rem; font-weight: 600; color: var(--text-secondary);
    display: flex; align-items: center; gap: 6px;
}
.tags-label i, .share-label i { color: var(--primary); }
.article-tag {
    display: inline-block; padding: 5px 14px;
    background: var(--primary-light); color: var(--primary);
    border-radius: var(--radius-full); font-size: 0.78rem; font-weight: 600;
    transition: var(--transition);
}
.article-tag:hover { background: var(--primary); color: var(--white); }

/* Share Buttons */
.article-share { display: flex; align-items: center; gap: 8px; }
.share-btn {
    width: 36px; height: 36px; border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    color: var(--white); font-size: 0.85rem; transition: var(--transition);
}
.share-btn:hover { transform: translateY(-3px); }
.share-facebook { background: #1877F2; }
.share-twitter { background: #1DA1F2; }
.share-email { background: var(--text-secondary); }

/* Article Navigation */
.article-nav {
    display: grid; grid-template-columns: 1fr 1fr; gap: 20px;
    margin-top: 40px;
}
.article-nav-item {
    background: var(--gray-50); border-radius: var(--radius-md);
    padding: 20px 24px; border: 1px solid var(--gray-100);
    transition: var(--transition); display: block;
}
.article-nav-item:hover { border-color: var(--primary-light); background: var(--primary-lighter); transform: translateY(-2px); }
.article-nav-item .nav-direction {
    display: block; font-size: 0.78rem; font-weight: 600;
    color: var(--primary); margin-bottom: 6px;
    text-transform: uppercase; letter-spacing: 0.5px;
}
.article-nav-item .nav-title {
    font-size: 0.92rem; font-weight: 600; color: var(--text-primary);
    line-height: 1.4; display: block;
}
.article-nav-next { text-align: right; }

/* Sidebar TOC */
.sidebar-toc .toc-list { list-style: none; padding: 0; margin: 0; }
.sidebar-toc .toc-list li { margin-bottom: 4px; }
.sidebar-toc .toc-list li a {
    display: block; padding: 8px 12px; border-radius: var(--radius-sm);
    font-size: 0.85rem; color: var(--text-secondary);
    transition: var(--transition); border-left: 2px solid transparent;
}
.sidebar-toc .toc-list li a:hover {
    background: var(--primary-light); color: var(--primary);
    border-left-color: var(--primary);
}
.sidebar-toc .toc-list li.toc-sub a { padding-left: 28px; font-size: 0.82rem; }

/* Related Articles Section */
.related-articles { padding: 80px 0; background: var(--gray-50); }

/* Front Page Knowledge Slideshow */
.knowledge-preview { padding: 100px 0; background: var(--gray-50); }
.knowledge-preview-header { text-align: center; margin-bottom: 56px; }
.knowledge-preview-header .section-subtitle { margin: 0 auto; }
.knowledge-preview-footer { text-align: center; margin-top: 48px; }

/* ---- Slider Container ---- */
.kslider {
    position: relative;
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 50px;
}

/* ---- Viewport (overflow hidden) ---- */
.kslider-viewport {
    overflow: hidden;
    border-radius: 16px;
}

/* ---- Track ---- */
.kslider-track {
    position: relative;
    min-height: 380px;
}

/* ---- Each Slide (group of 3 cards) ---- */
.kslider-slide {
    display: none;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    animation: ksliderFadeIn 0.5s ease;
}
.kslider-slide.active {
    display: grid;
}

@keyframes ksliderFadeIn {
    from { opacity: 0; transform: translateY(16px); }
    to   { opacity: 1; transform: translateY(0); }
}

/* ---- Cards inside slider ---- */
.kslider .knowledge-card {
    background: var(--white);
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 2px 16px rgba(0,0,0,0.06);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    display: flex;
    flex-direction: column;
}
.kslider .knowledge-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 12px 32px rgba(0,182,190,0.12);
}

.kslider .knowledge-card-image {
    position: relative;
    display: block;
    overflow: hidden;
    aspect-ratio: 16/10;
}
.kslider .knowledge-card-image img {
    width: 100%; height: 100%;
    object-fit: cover;
    transition: transform 0.4s ease;
}
.kslider .knowledge-card:hover .knowledge-card-image img {
    transform: scale(1.05);
}
.kslider .knowledge-tag {
    position: absolute; top: 12px; left: 12px;
    background: var(--primary);
    color: #fff;
    font-size: 0.7rem;
    font-weight: 600;
    padding: 4px 10px;
    border-radius: 20px;
    letter-spacing: 0.02em;
}
.kslider .knowledge-card-content {
    padding: 20px;
    flex: 1;
    display: flex;
    flex-direction: column;
}
.kslider .knowledge-card-meta {
    display: flex;
    gap: 14px;
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-bottom: 10px;
}
.kslider .knowledge-card-meta i { margin-right: 4px; color: var(--primary); }

.kslider .knowledge-card-title {
    font-size: 1rem;
    font-weight: 700;
    line-height: 1.45;
    margin-bottom: 8px;
    display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}
.kslider .knowledge-card-title a {
    color: var(--text-dark);
    text-decoration: none;
    transition: color 0.2s;
}
.kslider .knowledge-card-title a:hover { color: var(--primary); }

.kslider .knowledge-card-excerpt {
    font-size: 0.85rem;
    color: var(--text-muted);
    line-height: 1.55;
    margin-bottom: 14px;
    flex: 1;
    display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}
.kslider .knowledge-card-link {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--primary);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    transition: gap 0.2s ease;
}
.kslider .knowledge-card-link:hover { gap: 10px; }

/* ---- Arrows ---- */
.kslider-arrow {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    z-index: 10;
    width: 44px; height: 44px;
    border-radius: 50%;
    border: 2px solid var(--primary);
    background: var(--white);
    color: var(--primary);
    font-size: 1rem;
    cursor: pointer;
    display: flex; align-items: center; justify-content: center;
    transition: all 0.25s ease;
    box-shadow: 0 4px 12px rgba(0,0,0,0.08);
}
.kslider-arrow:hover {
    background: var(--primary);
    color: #fff;
    box-shadow: 0 6px 20px rgba(0,182,190,0.25);
}
.kslider-prev { left: 0; }
.kslider-next { right: 0; }

/* ---- Dots ---- */
.kslider-dots {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-top: 28px;
}
.kslider-dot {
    width: 10px; height: 10px;
    border-radius: 50%;
    border: 2px solid var(--primary);
    background: transparent;
    cursor: pointer;
    transition: all 0.25s ease;
    padding: 0;
}
.kslider-dot.active,
.kslider-dot:hover {
    background: var(--primary);
    transform: scale(1.2);
}

/* ---- Progress bar (auto-play indicator) ---- */
.kslider-progress {
    position: absolute;
    bottom: 0; left: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--primary), var(--primary-dark));
    border-radius: 0 0 16px 16px;
    transition: width linear;
}

/* ===================================================================
   RESPONSIVE — KNOWLEDGE
   =================================================================== */
@media (max-width: 1024px) {
    .knowledge-layout { grid-template-columns: 1fr; }
    .knowledge-sidebar { position: static; }
    .knowledge-grid { grid-template-columns: repeat(2, 1fr); }
    /* Slider responsive */
    .kslider { padding: 0 48px; }
    .kslider-slide { grid-template-columns: repeat(2, 1fr); gap: 20px; }
    .kslider-track { min-height: 360px; }
}

@media (max-width: 768px) {
    .knowledge-listing { padding: 60px 0; }
    .knowledge-grid { grid-template-columns: 1fr; }
    .knowledge-filter-active { flex-direction: column; gap: 12px; text-align: center; }
    .article-hero { padding: 60px 0 30px; }
    .article-meta { gap: 12px; }
    .article-footer-meta { flex-direction: column; align-items: flex-start; }
    .article-nav { grid-template-columns: 1fr; }
    .article-nav-next { text-align: left; }
    /* Slider responsive mobile */
    .knowledge-preview { padding: 60px 0; }
    .kslider { padding: 0 12px; }
    .kslider-slide { grid-template-columns: 1fr; gap: 16px; }
    .kslider-track { min-height: auto; }
    .kslider-arrow { width: 36px; height: 36px; font-size: 0.85rem; }
    .kslider-prev { left: -4px; }
    .kslider-next { right: -4px; }
    .kslider-dots { margin-top: 20px; }
}