/* ==========================================================================
   CONTAIN OVAR BLOG - MODERN CORPORATE STYLESHEET
   ========================================================================== */

:root {
    --primary: #0B3B60;
    --primary-light: #0080FF;
    --primary-dark: #072640;
    --accent: #00A3E0;
    --text-dark: #0F172A;
    --text-muted: #475569;
    --bg-light: #F8FAFC;
    --bg-card: #FFFFFF;
    --border-color: #E2E8F0;
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 18px;
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 12px rgba(11, 59, 96, 0.08);
    --shadow-lg: 0 10px 25px rgba(11, 59, 96, 0.12);
    --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: var(--font-sans);
    background-color: var(--bg-light);
    color: var(--text-dark);
    line-height: 1.6;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

.container {
    width: 100%;
    max-width: 1140px;
    margin: 0 auto;
    padding: 0 20px;
}

a {
    color: var(--primary-light);
    text-decoration: none;
    transition: color 0.2s ease;
}

a:hover {
    color: var(--primary-dark);
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

/* ==========================================================================
   HEADER & NAVIGATION
   ========================================================================== */

.site-header {
    background-color: #ffffff;
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: var(--shadow-sm);
}

.header-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 70px;
}

.site-logo {
    display: flex;
    align-items: center;
    gap: 10px;
}

.site-logo img {
    height: 38px;
    width: 38px;
    min-width: 38px;
    border-radius: 50%;
    object-fit: cover;
    flex-shrink: 0;
}

.site-logo-text {
    font-weight: 800;
    font-size: 1.25rem;
    color: var(--primary);
    white-space: nowrap;
}

.site-logo-text span {
    color: var(--primary-light);
    font-weight: 600;
}

.footer-logo-wrap {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 12px;
}

.footer-logo {
    height: 38px;
    width: 38px;
    min-width: 38px;
    border-radius: 50%;
    object-fit: cover;
    flex-shrink: 0;
}

.footer-logo-text {
    font-weight: 800;
    font-size: 1.15rem;
    color: #fff;
}

.footer-logo-text span {
    color: var(--primary-light);
    font-weight: 600;
}

.main-nav .nav-list {
    display: flex;
    align-items: center;
    list-style: none;
    gap: 24px;
}

.main-nav a {
    color: var(--text-dark);
    font-weight: 500;
    font-size: 0.95rem;
}

.main-nav a.active,
.main-nav a:hover {
    color: var(--primary-light);
}

.nav-btn-app {
    color: var(--primary-light) !important;
    border: 1px solid var(--primary-light);
    padding: 6px 14px;
    border-radius: var(--radius-sm);
}

.nav-btn-app:hover {
    background-color: rgba(0, 128, 255, 0.05);
}

.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 10px;
}

/* ==========================================================================
   BUTTONS
   ========================================================================== */

.btn {
    display: inline-block;
    padding: 10px 20px;
    font-weight: 600;
    border-radius: var(--radius-sm);
    text-align: center;
    cursor: pointer;
    border: none;
    transition: all 0.2s ease;
}

.btn-primary {
    background-color: var(--primary-light);
    color: #ffffff !important;
}

.btn-primary:hover {
    background-color: #0066CC;
    transform: translateY(-1px);
}

.btn-secondary {
    background-color: var(--primary);
    color: #ffffff !important;
}

.btn-secondary:hover {
    background-color: var(--primary-dark);
}

.btn-light {
    background-color: #ffffff;
    color: var(--primary) !important;
}

.btn-light:hover {
    background-color: #F1F5F9;
}

.btn-outline {
    background-color: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-dark);
}

.btn-block {
    display: block;
    width: 100%;
}

.btn-lg {
    padding: 14px 28px;
    font-size: 1rem;
}

/* ==========================================================================
   BLOG HERO & SEARCH
   ========================================================================== */

.blog-hero {
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 100%);
    color: #ffffff;
    padding: 60px 0 50px;
}

.hero-badge {
    display: inline-block;
    background-color: rgba(255, 255, 255, 0.15);
    color: #38BDF8;
    padding: 4px 14px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 16px;
    letter-spacing: 0.5px;
    text-transform: uppercase;
}

.hero-title {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 12px;
}

.hero-subtitle {
    font-size: 1.1rem;
    color: #CBD5E1;
    max-width: 650px;
    margin: 0 auto 30px;
}

.search-box {
    position: relative;
    max-width: 550px;
    margin: 0 auto;
}

.search-box input {
    width: 100%;
    padding: 16px 50px 16px 20px;
    border-radius: var(--radius-md);
    border: 1px solid rgba(255, 255, 255, 0.2);
    background-color: rgba(255, 255, 255, 0.95);
    font-size: 1rem;
    outline: none;
    box-shadow: var(--shadow-lg);
    transition: all 0.2s ease;
}

.search-box input:focus {
    background-color: #ffffff;
    box-shadow: 0 0 0 3px rgba(0, 163, 224, 0.4);
}

.search-icon {
    position: absolute;
    right: 18px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 1.2rem;
}

/* Categories Bar */
.categories-bar {
    background-color: #ffffff;
    border-bottom: 1px solid var(--border-color);
    padding: 14px 0;
}

.category-pills {
    display: flex;
    gap: 10px;
    overflow-x: auto;
    padding-bottom: 4px;
}

.pill {
    background-color: var(--bg-light);
    border: 1px solid var(--border-color);
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 0.88rem;
    font-weight: 500;
    color: var(--text-muted);
    cursor: pointer;
    white-space: nowrap;
    transition: all 0.2s ease;
}

.pill.active,
.pill:hover {
    background-color: var(--primary);
    color: #ffffff;
    border-color: var(--primary);
}

/* ==========================================================================
   FEATURED POST & POSTS GRID
   ========================================================================== */

.blog-posts-section {
    padding: 50px 0;
}

.featured-post-card {
    display: grid;
    grid-template-columns: 1fr 1fr;
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-color);
    margin-bottom: 50px;
}

.featured-image-wrapper img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.featured-content {
    padding: 40px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.post-meta {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 14px;
}

.category-badge {
    background-color: rgba(11, 59, 96, 0.08);
    color: var(--primary);
    padding: 4px 10px;
    border-radius: var(--radius-sm);
    font-size: 0.8rem;
    font-weight: 700;
    text-transform: uppercase;
}

.post-date {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.featured-title {
    font-size: 1.75rem;
    font-weight: 700;
    line-height: 1.3;
    margin-bottom: 14px;
}

.featured-title a {
    color: var(--text-dark);
}

.featured-summary {
    color: var(--text-muted);
    font-size: 1rem;
    margin-bottom: 24px;
}

.featured-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.author-name {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-dark);
}

.section-heading {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 24px;
    color: var(--primary-dark);
}

/* Grid */
.posts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 30px;
}

.post-card {
    background: var(--bg-card);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    display: flex;
    flex-direction: column;
}

.post-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.card-image-link img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.card-body {
    padding: 24px;
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}

.card-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 10px;
}

.category-tag {
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--primary-light);
    text-transform: uppercase;
}

.read-time {
    font-size: 0.8rem;
    color: var(--text-muted);
}

.card-title {
    font-size: 1.2rem;
    font-weight: 700;
    line-height: 1.4;
    margin-bottom: 10px;
}

.card-title a {
    color: var(--text-dark);
}

.card-excerpt {
    font-size: 0.92rem;
    color: var(--text-muted);
    margin-bottom: 20px;
    flex-grow: 1;
}

.card-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-top: 1px solid var(--border-color);
    padding-top: 14px;
    font-size: 0.85rem;
}

.card-date {
    color: var(--text-muted);
}

.read-more {
    font-weight: 600;
    color: var(--primary);
}

/* ==========================================================================
   ARTICLE / POST PAGE STYLES
   ========================================================================== */

.single-post-container {
    padding-bottom: 60px;
}

.post-header {
    background-color: #ffffff;
    border-bottom: 1px solid var(--border-color);
    padding: 40px 0 30px;
}

.breadcrumbs {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-bottom: 16px;
}

.post-title {
    font-size: 2.25rem;
    font-weight: 800;
    color: var(--primary-dark);
    margin: 12px 0 20px;
    line-height: 1.25;
}

.post-header-meta {
    display: flex;
    gap: 24px;
    font-size: 0.9rem;
    color: var(--text-muted);
}

.post-cover {
    margin: 30px 0;
    border-radius: var(--radius-md);
    overflow: hidden;
    max-height: 450px;
}

.post-cover img {
    width: 100%;
    object-fit: cover;
}

.post-layout {
    display: grid;
    grid-template-columns: 1fr 300px;
    gap: 40px;
    align-items: start;
}

.article-body {
    background: #ffffff;
    padding: 40px;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
    font-size: 1.05rem;
    line-height: 1.8;
    color: #334155;
}

.article-body h2 {
    font-size: 1.5rem;
    color: var(--primary-dark);
    margin: 32px 0 16px;
    padding-bottom: 8px;
    border-bottom: 2px solid var(--bg-light);
}

.article-body h3 {
    font-size: 1.25rem;
    color: var(--primary);
    margin: 24px 0 12px;
}

.article-body p {
    margin-bottom: 20px;
}

.article-body ul, .article-body ol {
    margin-bottom: 20px;
    padding-left: 24px;
}

.article-body li {
    margin-bottom: 8px;
}

.article-body blockquote {
    border-left: 4px solid var(--primary-light);
    background-color: var(--bg-light);
    padding: 16px 20px;
    margin: 24px 0;
    font-style: italic;
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}

.article-body table {
    width: 100%;
    border-collapse: collapse;
    margin: 24px 0;
    font-size: 0.95rem;
}

.article-body table th,
.article-body table td {
    padding: 12px 16px;
    border: 1px solid var(--border-color);
    text-align: left;
}

.article-body table th {
    background-color: var(--bg-light);
    font-weight: 700;
    color: var(--primary-dark);
}

.article-body pre {
    background-color: #0F172A;
    color: #F8FAFC;
    padding: 20px;
    border-radius: var(--radius-sm);
    overflow-x: auto;
    margin: 24px 0;
    font-size: 0.9rem;
}

.post-tags {
    margin-top: 30px;
    padding-top: 20px;
    border-top: 1px solid var(--border-color);
    display: flex;
    gap: 8px;
    align-items: center;
}

.tag-item {
    background-color: var(--bg-light);
    padding: 4px 10px;
    border-radius: 12px;
    font-size: 0.8rem;
    color: var(--text-muted);
}

.author-card {
    display: flex;
    align-items: center;
    gap: 16px;
    background-color: var(--bg-light);
    padding: 20px;
    border-radius: var(--radius-md);
    margin-top: 35px;
}

.author-avatar {
    flex-shrink: 0;
}

.author-avatar img {
    width: 50px;
    height: 50px;
    min-width: 50px;
    border-radius: 50%;
    object-fit: cover;
    flex-shrink: 0;
}

.author-info {
    min-width: 0;
}

/* Sidebar */
.post-sidebar {
    position: sticky;
    top: 90px;
}

.sidebar-widget {
    background: #ffffff;
    padding: 24px;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
    margin-bottom: 24px;
}

.cta-widget {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: #ffffff;
}

.cta-widget h3 {
    margin-bottom: 10px;
}

.cta-widget p {
    font-size: 0.9rem;
    color: #CBD5E1;
    margin-bottom: 20px;
}

.recent-posts-list {
    list-style: none;
}

.recent-posts-list li {
    margin-bottom: 12px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border-color);
}

.recent-posts-list a {
    color: var(--text-dark);
    font-weight: 600;
    font-size: 0.9rem;
    display: block;
}

.recent-posts-list .date {
    font-size: 0.75rem;
    color: var(--text-muted);
}

/* ==========================================================================
   CTA / FOOTER
   ========================================================================== */

.newsletter-cta {
    background-color: var(--primary);
    color: #ffffff;
    padding: 50px 0;
}

.cta-box {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 30px;
}

.cta-text h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 6px;
}

.site-footer {
    background-color: var(--primary-dark);
    color: #94A3B8;
    padding: 60px 0 0;
    margin-top: auto;
    font-size: 0.9rem;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: 40px;
    padding-bottom: 40px;
}

.footer-brand p {
    margin-top: 14px;
    max-width: 320px;
}

.footer-col h4 {
    color: #ffffff;
    font-size: 1rem;
    margin-bottom: 16px;
}

.footer-col ul {
    list-style: none;
}

.footer-col li {
    margin-bottom: 10px;
}

.footer-col a {
    color: #CBD5E1;
}

.footer-col a:hover {
    color: #ffffff;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding: 20px 0;
    text-align: center;
    font-size: 0.85rem;
}

/* ==========================================================================
   RESPONSIVE LAYOUT
   ========================================================================== */

@media (max-width: 900px) {
    .featured-post-card {
        grid-template-columns: 1fr;
    }
    .post-layout {
        grid-template-columns: 1fr;
    }
    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }
    .cta-box {
        flex-direction: column;
        text-align: center;
    }
}

@media (max-width: 600px) {
    .main-nav {
        display: none;
    }
    .mobile-menu-toggle {
        display: block;
    }
    .hero-title {
        font-size: 1.8rem;
    }
    .posts-grid {
        grid-template-columns: 1fr;
    }
    .footer-grid {
        grid-template-columns: 1fr;
    }
}