:root {
    --sibio-primary: #002147;
    --sibio-primary-rgb: 0, 33, 71;
    --sibio-primary-light: rgba(0, 33, 71, 0.08);
    --sibio-bg: #f5f7f8;
    --sibio-text: #0f172a;
    --sibio-muted: #64748b;
    --sibio-border: #e2e8f0;
    --sibio-radius: 1rem;
    --sibio-transition: 0.25s ease;
    --sibio-font: "Manrope", sans-serif;
    --sibio-shadow-lg: 0 20px 60px rgba(0, 33, 71, 0.12);
    --sibio-shadow-sm: 0 10px 30px rgba(0, 33, 71, 0.08);
}

*,
*::before,
*::after {
    box-sizing: border-box;
}

body {
    font-family: var(--sibio-font);
    background: var(--sibio-bg);
    color: var(--sibio-text);
    -webkit-font-smoothing: antialiased;
}

a {
    transition: color var(--sibio-transition), background var(--sibio-transition), border-color var(--sibio-transition);
}

.fw-extrabold {
    font-weight: 800 !important;
}

.text-primary-custom {
    color: var(--sibio-primary) !important;
}

.btn-primary-custom {
    background-color: var(--sibio-primary);
    color: #fff;
    border: 2px solid var(--sibio-primary);
    transition: background-color var(--sibio-transition), box-shadow var(--sibio-transition), transform var(--sibio-transition);
}

.btn-primary-custom:hover,
.btn-primary-custom:focus {
    background-color: #003366;
    border-color: #003366;
    color: #fff;
    box-shadow: 0 6px 20px rgba(var(--sibio-primary-rgb), 0.35);
}

.btn-primary-custom:active {
    transform: scale(0.97);
}

.sibio-navbar {
    background: rgba(255, 255, 255, 0.97);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--sibio-border);
    transition: box-shadow var(--sibio-transition);
    min-height: 80px;
    z-index: 1020;
}

.sibio-navbar.scrolled {
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.08);
}

.sibio-navbar .navbar {
    min-height: 80px;
    padding-top: 0;
    padding-bottom: 0;
}

.sibio-logo-image {
    width: auto;
    height: 30px;
    display: block;
}

.sibio-navbar .nav-link {
    color: #334155;
    font-size: 0.875rem;
    font-weight: 600;
    padding: 0.4rem 0.25rem;
    position: relative;
    transition: color var(--sibio-transition);
}

.sibio-navbar .nav-link::after {
    content: "";
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--sibio-primary);
    transition: width var(--sibio-transition);
    border-radius: 2px;
}

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

.sibio-navbar .nav-link:hover::after,
.sibio-navbar .nav-link.active::after {
    width: 100%;
}

.sibio-blog-hero {
    padding: clamp(4rem, 7vw, 7rem) 0 clamp(2.5rem, 5vw, 4rem);
    background:
        radial-gradient(circle at top right, rgba(0, 33, 71, 0.08), transparent 34rem),
        linear-gradient(180deg, #ffffff 0%, var(--sibio-bg) 100%);
}

.eyebrow {
    color: var(--sibio-primary);
    font-size: 0.72rem;
    font-weight: 800;
    letter-spacing: 0.32em;
    text-transform: uppercase;
}

.blog-heading {
    max-width: 820px;
    font-size: clamp(2.4rem, 6vw, 5rem);
    line-height: 1.02;
    letter-spacing: -0.055em;
    font-weight: 300;
    color: #1e293b;
}

.blog-subtitle {
    max-width: 650px;
    color: #475569;
    line-height: 1.8;
    font-size: clamp(1rem, 1.6vw, 1.1rem);
}

.sibio-blog-list {
    padding: 0 0 clamp(4rem, 7vw, 7rem);
}

.featured-article-card {
    background: #fff;
    border: 1px solid var(--sibio-border);
    border-radius: 1.25rem;
    overflow: hidden;
    box-shadow: var(--sibio-shadow-sm);
}

.featured-media {
    height: 100%;
    min-height: 360px;
    background: #e2e8f0;
    overflow: hidden;
}

.featured-media img,
.article-media img,
.single-featured img,
.recent-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.featured-media img {
    transition: transform 0.7s ease;
}

.featured-article-card:hover .featured-media img {
    transform: scale(1.04);
}

.featured-content {
    padding: clamp(2rem, 4vw, 4rem);
    display: flex;
    flex-direction: column;
}

.featured-title {
    font-size: clamp(1.7rem, 3vw, 2.75rem);
    line-height: 1.14;
    letter-spacing: -0.04em;
    font-weight: 400;
}

.featured-title a,
.article-title a {
    color: var(--sibio-text);
    text-decoration: none;
}

.featured-title a:hover,
.article-title a:hover {
    color: var(--sibio-primary);
}

.featured-excerpt,
.article-excerpt {
    color: #475569;
    line-height: 1.75;
}

.article-card {
    background: transparent;
    border: none;
    display: flex;
    flex-direction: column;
    min-height: 100%;
}

.article-media {
    aspect-ratio: 4 / 3;
    border-radius: 0.95rem;
    overflow: hidden;
    background: #e2e8f0;
    margin-bottom: 1.25rem;
}

.article-media img {
    transition: transform 0.6s ease;
}

.article-card:hover .article-media img {
    transform: scale(1.06);
}

.article-content {
    display: flex;
    flex-direction: column;
    flex: 1;
}

.article-title {
    font-size: clamp(1.1rem, 1.45vw, 1.35rem);
    line-height: 1.35;
    font-weight: 700;
    letter-spacing: -0.02em;
    margin-bottom: 0.9rem;
}

.article-tag {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    border: 1px solid var(--sibio-primary);
    color: var(--sibio-primary);
    background: rgba(255, 255, 255, 0.64);
    text-decoration: none;
    font-size: 0.7rem;
    font-weight: 700;
    padding: 0.25rem 0.65rem;
    line-height: 1.2;
    border-radius: 0.2rem;
}

.article-tag:hover {
    background: var(--sibio-primary);
    color: #fff;
}

.read-time {
    color: #64748b;
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    font-size: 0.82rem;
}

.post-date {
    color: #64748b;
    font-size: 0.9rem;
}

.read-more-link {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    color: var(--sibio-primary);
    text-decoration: none;
    font-weight: 800;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    font-size: 0.74rem;
}

.read-more-link:hover {
    gap: 0.65rem;
    color: #003366;
}

.small-link {
    letter-spacing: 0;
    text-transform: none;
}

.image-placeholder {
    min-height: 360px;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--sibio-primary);
    background: linear-gradient(135deg, rgba(0, 33, 71, 0.08), rgba(0, 33, 71, 0.03));
    font-size: 3rem;
}

.image-placeholder.compact {
    min-height: 220px;
    font-size: 2rem;
}

.sibio-pagination .nav-links {
    display: flex;
    flex-wrap: wrap;
    gap: 0.65rem;
    justify-content: center;
}

.sibio-pagination .page-numbers {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 42px;
    min-height: 42px;
    padding: 0 0.9rem;
    border-radius: 999px;
    background: #fff;
    color: var(--sibio-primary);
    border: 1px solid var(--sibio-border);
    text-decoration: none;
    font-weight: 700;
}

.sibio-pagination .page-numbers.current,
.sibio-pagination .page-numbers:hover {
    background: var(--sibio-primary);
    color: #fff;
    border-color: var(--sibio-primary);
}

.empty-state {
    background: #fff;
    border: 1px solid var(--sibio-border);
    border-radius: 1.25rem;
    padding: 4rem 2rem;
}

.empty-state i {
    font-size: 3rem;
    color: var(--sibio-primary);
    margin-bottom: 1rem;
}

.sibio-single-wrap {
    padding: clamp(3rem, 6vw, 5rem) 0 clamp(4rem, 7vw, 7rem);
}

.breadcrumb a {
    color: var(--sibio-primary);
    text-decoration: none;
    font-weight: 700;
}

.single-title {
    font-size: clamp(2rem, 5vw, 4rem);
    line-height: 1.06;
    letter-spacing: -0.05em;
    font-weight: 400;
    color: #1e293b;
}

.post-meta {
    color: #64748b;
    font-size: 0.92rem;
}

.post-meta span {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
}

.single-featured {
    aspect-ratio: 16 / 9;
    background: #e2e8f0;
}

.article-body {
    color: #334155;
    font-size: 1.05rem;
    line-height: 1.85;
}

.article-body h2,
.article-body h3,
.article-body h4 {
    color: var(--sibio-primary);
    margin-top: 2rem;
    margin-bottom: 1rem;
    letter-spacing: -0.025em;
}

.article-body p,
.article-body ul,
.article-body ol {
    margin-bottom: 1.35rem;
}

.article-body img {
    max-width: 100%;
    height: auto;
    border-radius: 1rem;
}

.article-body blockquote {
    background: var(--sibio-primary-light);
    border-left: 4px solid var(--sibio-primary);
    border-radius: 0.85rem;
    padding: 1.5rem;
    color: #475569;
}

.article-after {
    border-color: rgba(0, 33, 71, 0.1) !important;
}

.tag-list a {
    display: inline-flex;
    margin: 0 0.4rem 0.4rem 0;
    padding: 0.45rem 0.8rem;
    background: var(--sibio-primary-light);
    color: #475569;
    border-radius: 999px;
    text-decoration: none;
    font-weight: 700;
    font-size: 0.8rem;
}

.share-label {
    color: #64748b;
    font-weight: 800;
    text-transform: uppercase;
    font-size: 0.75rem;
    letter-spacing: 0.12em;
}

.share-btn {
    width: 38px;
    height: 38px;
    border-radius: 50%;
    background: var(--sibio-primary);
    color: #fff;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
}

.share-btn:hover {
    color: #fff;
    transform: translateY(-2px);
}

.sibio-sidebar {
    top: 100px;
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.sidebar-card {
    background: #fff;
    border: 1px solid var(--sibio-border);
    border-radius: 1.25rem;
    padding: 1.5rem;
    box-shadow: var(--sibio-shadow-sm);
}

.sidebar-title {
    font-weight: 800;
    margin-bottom: 1.25rem;
    color: var(--sibio-text);
}

.category-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.category-list li {
    display: flex;
    justify-content: space-between;
    border-bottom: 1px solid #eef2f7;
    padding: 0.75rem 0;
    color: #64748b;
}

.category-list li:last-child {
    border-bottom: 0;
}

.category-list a {
    color: #64748b;
    text-decoration: none;
}

.category-list a:hover {
    color: var(--sibio-primary);
}

.recent-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.recent-item {
    display: flex;
    gap: 0.85rem;
    text-decoration: none;
    color: var(--sibio-text);
}

.recent-item:hover strong {
    color: var(--sibio-primary);
}

.recent-thumb {
    width: 72px;
    height: 72px;
    flex: 0 0 72px;
    border-radius: 0.85rem;
    overflow: hidden;
    background: var(--sibio-primary-light);
    color: var(--sibio-primary);
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.recent-item strong {
    display: block;
    line-height: 1.25;
    font-size: 0.92rem;
    margin-bottom: 0.35rem;
}

.recent-item small {
    color: #64748b;
}

.sidebar-cta {
    background: var(--sibio-primary);
    color: #fff;
    border-radius: 1.25rem;
    padding: 1.5rem;
    box-shadow: var(--sibio-shadow-sm);
}

.sidebar-cta p {
    color: rgba(255, 255, 255, 0.76);
    line-height: 1.7;
}

.related-section {
    border-color: rgba(0, 33, 71, 0.1) !important;
}

.section-title {
    font-size: clamp(1.6rem, 3vw, 2.5rem);
    letter-spacing: -0.04em;
    font-weight: 800;
}

.page-content-card {
    background: #fff;
    border: 1px solid var(--sibio-border);
    border-radius: 1.25rem;
    padding: clamp(2rem, 5vw, 4rem);
    box-shadow: var(--sibio-shadow-sm);
}

.sibio-footer {
    background-color: #0f172a;
}

.footer-links li {
    margin-bottom: 0.85rem;
}

.footer-links a,
.footer-link-bottom {
    color: #94a3b8;
    text-decoration: none;
    transition: color var(--sibio-transition);
}

.footer-links a:hover,
.footer-link-bottom:hover {
    color: #fff;
}

.text-secondary-footer {
    color: #94a3b8 !important;
}

.sibio-footer input[type="email"] {
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.15);
    color: #fff;
    border-radius: 0.5rem;
}

.sibio-footer input[type="email"]::placeholder {
    color: #94a3b8;
}

.sibio-footer input[type="email"]:focus {
    background: rgba(255, 255, 255, 0.15);
    border-color: rgba(255, 255, 255, 0.3);
    color: #fff;
    box-shadow: none;
    outline: none;
}

.whatsapp-fab {
    position: fixed;
    right: 1.25rem;
    bottom: 1.25rem;
    z-index: 1060;
    width: 58px;
    height: 58px;
    border-radius: 50%;
    background: #25d366;
    color: #fff;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 6px 24px rgba(37, 211, 102, 0.45);
    text-decoration: none;
    font-size: 1.55rem;
}

.whatsapp-fab:hover {
    color: #fff;
    transform: scale(1.06);
}

@media (max-width: 991.98px) {
    .sibio-navbar .navbar-collapse {
        background: #fff;
        padding: 1rem 0 1.25rem;
        border-top: 1px solid var(--sibio-border);
        margin-top: 0.75rem;
    }

    .sibio-navbar .nav-link {
        padding: 0.7rem 0;
    }

    .featured-media {
        min-height: 280px;
        aspect-ratio: 16 / 10;
    }

    .featured-content {
        padding: 1.5rem;
    }

    .sibio-sidebar {
        position: static !important;
    }
}

@media (max-width: 575.98px) {
    .sibio-navbar,
    .sibio-navbar .navbar {
        min-height: 72px;
    }

    .sibio-blog-hero {
        padding-top: 3rem;
    }

    .featured-article-card {
        border-radius: 1rem;
    }

    .featured-media {
        min-height: 240px;
    }

    .article-media {
        margin-bottom: 1rem;
    }

    .single-title {
        letter-spacing: -0.035em;
    }
}