/* Knowledge Base Specific Styles */

/* Hero Section Refined - Maintaining its unique immersive look but synced with theme */
.hero {
    background: linear-gradient(135deg, var(--dark-section-bg) 0%, #030f0b 100%);
    color: var(--dark-text-on-dark);
    padding: 200px 20px 100px;
    /* Matched padding-top with other internal pages for fixed header */
    text-align: center;
    position: relative;
    overflow: hidden;
}

@media (max-width: 992px) {
    .hero {
        padding-top: 180px;
    }
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('https://www.transparenttextures.com/patterns/cubes.png');
    opacity: 0.05;
}

.hero-content {
    position: relative;
    z-index: 1;
}

.hero-content h1 {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 20px;
    letter-spacing: -1px;
    color: var(--white) !important;
    font-family: var(--font-heading);
}

.hero-content h1 span {
    color: var(--primary-blue);
}

.hero-content p.lead-text {
    max-width: 650px;
    margin: 0 auto 40px;
    font-size: 1.25rem;
    color: var(--dark-text-secondary-on-dark);
    line-height: 1.6;
}

/* Search Box Container */
.search-container {
    max-width: 600px;
    margin: 0 auto;
    position: relative;
    z-index: 2;
}

.search-box {
    position: relative;
    display: flex;
    align-items: center;
}

.search-box i {
    position: absolute;
    left: 20px;
    color: var(--text-secondary);
    font-size: 1.2rem;
}

.search-box input {
    width: 100%;
    padding: 20px 20px 20px 55px;
    border-radius: 50px;
    border: none;
    outline: none;
    font-size: 1.1rem;
    color: var(--text-dark);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
    transition: all 0.3s ease;
    font-family: var(--font-body);
}

.search-box input:focus {
    box-shadow: 0 15px 35px rgba(7, 139, 151, 0.4);
    transform: translateY(-2px);
}

/* Main Content Styles */

.kb-section {
    /* background-color: var(--light-gray); */
    background-color: transparent;
    padding: 80px 0;
}

.kb-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 30px;
    padding: 40px 0;
}

.kb-card {
    background: var(--white);
    border-radius: 14px;
    padding: 40px;
    border: 1px solid var(--border-gray);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    flex-direction: column;
    text-align: left;
    max-width: 450px;
    /* Prevent over-stretching when few cards exist */
}

.kb-card:hover {
    transform: translateY(-8px);
    border-color: var(--primary-blue);
    box-shadow: 0 20px 40px rgba(15, 23, 42, 0.08);
}

.kb-card-header {
    display: flex;
    align-items: center;
    gap: 20px;
    margin-bottom: 24px;
}

.kb-icon {
    width: 56px;
    height: 56px;
    flex-shrink: 0;
    border-radius: 16px;
    background: rgba(7, 139, 151, 0.1);
    color: var(--primary-blue);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
}

.kb-card h3 {
    margin: 0;
    font-size: 1.5rem;
    color: var(--text-dark);
    font-weight: 700;
    font-family: var(--font-heading);
    line-height: 1.2;
}

.kb-card p {
    margin: 0 0 24px;
    color: var(--text-secondary);
    font-size: 1rem;
    line-height: 1.6;
}

.kb-guides {
    list-style: none;
    padding: 0;
    margin: 0;
    margin-top: auto;
}

.kb-guides li {
    padding: 10px 0;
    font-size: 0.95rem;
    color: var(--text-dark);
    display: flex;
    align-items: center;
    gap: 12px;
    transition: color 0.2s;
    cursor: pointer;
}

.kb-guides li a {
    color: inherit;
    text-decoration: none;
    transition: color 0.2s;
}

.kb-guides li a:hover {
    color: var(--primary-blue);
}

.kb-guides li::before {
    content: "\f061";
    font-family: "Font Awesome 6 Free";
    font-weight: 900;
    color: var(--primary-blue);
    font-size: 0.8rem;
}

.kb-guides li.coming-soon {
    color: var(--text-secondary);
    cursor: default;
    opacity: 0.7;
    font-style: italic;
}

/* Articles Section */
.articles {
    margin-top: 60px;
    padding-bottom: 80px;
}

.article-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 24px;
}

.article {
    background: var(--white);
    padding: 28px;
    border-radius: 14px;
    border: 1px solid var(--border-gray);
    transition: all 0.3s;
    cursor: pointer;
    text-align: left;
}

.article:hover {
    border-color: var(--primary-blue);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.05);
}

.article h4 {
    margin: 0 0 10px;
    font-size: 1.1rem;
    color: var(--text-dark);
    font-weight: 600;
    font-family: var(--font-heading);
}

.article span {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.section-title {
    margin-bottom: 30px;
    text-align: left;
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-dark);
    font-family: var(--font-heading);
}

/* Handle "No Results" Message */
.no-results {
    text-align: center;
    padding: 60px 20px;
    grid-column: 1 / -1;
}

.no-results i {
    font-size: 3rem;
    color: var(--text-secondary);
    margin-bottom: 20px;
    display: block;
}

/* Mobile Responsiveness for KB specific parts */
@media (max-width: 900px) {
    .hero {
        padding-top: 120px;
    }

    .hero-content h1 {
        font-size: 2.8rem;
    }
}

@media (max-width: 600px) {
    .hero {
        padding: 100px 20px 60px;
    }

    .hero-content h1 {
        font-size: 2.2rem;
    }

    .kb-grid {
        grid-template-columns: 1fr;
    }
}

/* --- KB Article Detail Styles --- */

.article-page {
    padding-top: 140px;
    padding-bottom: 80px;
    background-color: var(--white);
}

.breadcrumb-nav {
    margin-bottom: 40px;
    font-size: 0.95rem;
}

.breadcrumb-nav a {
    color: var(--text-secondary);
    transition: color 0.3s;
}

.breadcrumb-nav a:hover {
    color: var(--primary-blue);
}

.breadcrumb-nav span {
    margin: 0 10px;
    color: var(--border-gray);
}

.article-container {
    display: grid;
    grid-template-columns: 1fr 300px;
    gap: 60px;
}

/* Article Content Area */
.article-main {
    max-width: 800px;
}

.article-header {
    margin-bottom: 40px;
}

.article-header h1 {
    font-size: 3rem;
    margin-bottom: 15px;
    color: var(--text-dark);
}

.article-meta {
    font-size: 0.95rem;
    color: var(--text-secondary);
    display: flex;
    gap: 20px;
}

.article-body {
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--text-dark);
}

.article-body h2 {
    margin: 40px 0 20px;
    font-size: 1.8rem;
    border-bottom: 1px solid var(--border-gray);
    padding-bottom: 10px;
}

.article-body p {
    margin-bottom: 25px;
}

/* Step-by-Step Guide */
.kb-steps {
    list-style: none;
    padding: 0;
    margin: 40px 0;
}

.kb-step {
    display: flex;
    gap: 25px;
    margin-bottom: 50px;
    position: relative;
}

.kb-step-number {
    width: 40px;
    height: 40px;
    background: var(--primary-blue);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    flex-shrink: 0;
    box-shadow: 0 4px 10px rgba(7, 139, 151, 0.3);
}

.kb-step-content h3 {
    margin-bottom: 10px;
    font-size: 1.4rem;
}

.kb-step-image {
    margin-top: 20px;
    border-radius: var(--kb-radius);
    border: 1px solid var(--border-gray);
    overflow: hidden;
    background: var(--light-gray);
    aspect-ratio: 16/9;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
}

/* Sidebar Styles */
.kb-sidebar {
    position: sticky;
    top: 140px;
    height: fit-content;
}

.kb-sidebar-section {
    margin-bottom: 50px;
}

.kb-sidebar-section h4 {
    font-size: 1.1rem;
    margin-bottom: 20px;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-secondary);
}

.toc-list {
    list-style: none;
}

.toc-list li {
    margin-bottom: 12px;
}

.toc-list a {
    color: var(--text-dark);
    font-weight: 500;
    transition: all 0.3s;
    display: block;
}

.toc-list a:hover {
    color: var(--primary-blue);
    transform: translateX(5px);
}

.related-articles {
    list-style: none;
}

.related-articles li {
    margin-bottom: 15px;
    border-bottom: 1px solid var(--light-gray);
    padding-bottom: 15px;
}

.related-articles a {
    color: var(--text-dark);
    font-weight: 600;
    font-size: 0.95rem;
}

/* Alert/Tip Components */
.kb-alert {
    padding: 24px;
    border-radius: 12px;
    margin: 30px 0;
    display: flex;
    gap: 20px;
    align-items: flex-start;
}

.kb-alert-tip {
    background-color: var(--primary-light-bg);
    border-left: 4px solid var(--primary-blue);
}

.kb-alert i {
    font-size: 1.5rem;
    color: var(--primary-blue);
}

/* Mobile Responsiveness for Article */
@media (max-width: 1024px) {
    .article-container {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .kb-sidebar {
        order: 2;
    }

    .kb-sidebar-section {
        position: static;
    }
}

@media (max-width: 768px) {
    .article-header h1 {
        font-size: 2.2rem;
    }

    .kb-step {
        flex-direction: column;
        gap: 15px;
    }
}