/* CBA Blog — matches site brand tokens */
:root {
    --cba-primary: #1B365D;
    --cba-secondary: #538AB4;
    --cba-accent: #00B2AE;
    --cba-light: #F5F7FA;
    --cba-text: #333;
    --cba-muted: #5a6570;
    --cba-white: #FFFFFF;
    --blog-max: 720px;
    --page-max: 1100px;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.65;
    color: var(--cba-text);
    background: var(--cba-light);
    -webkit-font-smoothing: antialiased;
}

a {
    color: var(--cba-secondary);
}

a:hover {
    color: var(--cba-accent);
}

/* Nav */
.cba-mega-menu {
    background: var(--cba-primary);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.cba-menu-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 20px;
}

.cba-logo {
    display: inline-block;
    padding: 10px 0;
}

.cba-logo img {
    height: 64px;
    width: auto;
    display: block;
}

.cba-nav {
    display: flex;
    list-style: none;
    align-items: center;
}

.cba-nav > li > a {
    color: white;
    text-decoration: none;
    padding: 20px 14px;
    display: block;
    transition: background 0.3s;
    font-size: 15px;
    font-weight: 500;
    white-space: nowrap;
}

.cba-nav > li > a:hover,
.cba-nav > li > a.active {
    background: var(--cba-secondary);
    color: white;
}

.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 10px;
    flex-direction: column;
    gap: 5px;
}

.mobile-menu-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: white;
}

.cba-nav-mobile {
    display: none;
    list-style: none;
    background: var(--cba-primary);
    padding: 0 20px 16px;
}

.cba-nav-mobile.active {
    display: block;
}

.cba-nav-mobile a {
    color: white;
    text-decoration: none;
    display: block;
    padding: 12px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.12);
}

/* Hero / page header */
.blog-hero {
    background:
        linear-gradient(135deg, rgba(27, 54, 93, 0.94) 0%, rgba(83, 138, 180, 0.88) 55%, rgba(0, 178, 174, 0.75) 100%),
        radial-gradient(ellipse at 20% 20%, rgba(255, 255, 255, 0.12), transparent 50%),
        var(--cba-primary);
    color: white;
    padding: 56px 20px 48px;
}

.blog-hero-inner {
    max-width: var(--page-max);
    margin: 0 auto;
}

.blog-hero .brand-mark {
    font-size: 0.85rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    opacity: 0.85;
    margin-bottom: 10px;
}

.blog-hero h1 {
    font-size: clamp(1.9rem, 4vw, 2.6rem);
    line-height: 1.2;
    font-weight: 700;
    max-width: 18ch;
    margin-bottom: 12px;
}

.blog-hero p {
    max-width: 52ch;
    font-size: 1.05rem;
    opacity: 0.92;
}

/* Listing */
.blog-wrap {
    max-width: var(--page-max);
    margin: 0 auto;
    padding: 40px 20px 72px;
}

.blog-list {
    display: flex;
    flex-direction: column;
    gap: 0;
}

.blog-list-item {
    display: block;
    text-decoration: none;
    color: inherit;
    padding: 28px 0;
    border-bottom: 1px solid rgba(27, 54, 93, 0.12);
    transition: background 0.2s ease, padding-left 0.2s ease;
}

.blog-list-item:hover {
    background: rgba(255, 255, 255, 0.55);
    padding-left: 8px;
}

.blog-list-item:first-child {
    padding-top: 8px;
}

.blog-list-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 10px 16px;
    align-items: center;
    margin-bottom: 8px;
    font-size: 0.88rem;
    color: var(--cba-muted);
}

.blog-list-item h2 {
    font-size: 1.35rem;
    color: var(--cba-primary);
    margin-bottom: 8px;
    line-height: 1.3;
}

.blog-list-item p {
    color: var(--cba-muted);
    max-width: 65ch;
}

.topic-tag {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.02em;
    color: var(--cba-primary);
    background: rgba(0, 178, 174, 0.12);
    border: 1px solid rgba(0, 178, 174, 0.35);
    padding: 2px 8px;
}

/* Post article */
.article-wrap {
    max-width: var(--blog-max);
    margin: 0 auto;
    padding: 40px 20px 72px;
}

.article-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 10px 16px;
    align-items: center;
    margin-bottom: 18px;
    font-size: 0.9rem;
    color: var(--cba-muted);
}

.article-wrap h1 {
    font-size: clamp(1.75rem, 3.5vw, 2.35rem);
    color: var(--cba-primary);
    line-height: 1.25;
    margin-bottom: 16px;
}

.article-dek {
    font-size: 1.1rem;
    color: var(--cba-muted);
    margin-bottom: 28px;
    padding-bottom: 24px;
    border-bottom: 2px solid rgba(0, 178, 174, 0.35);
}

.article-body h2 {
    font-size: 1.25rem;
    color: var(--cba-primary);
    margin: 1.75rem 0 0.75rem;
}

.article-body h3 {
    font-size: 1.08rem;
    color: var(--cba-primary);
    margin: 1.4rem 0 0.6rem;
}

.article-body p,
.article-body li {
    font-size: 1.02rem;
    margin-bottom: 1rem;
}

.article-body ul,
.article-body ol {
    margin: 0 0 1.1rem 1.25rem;
}

.article-body li {
    margin-bottom: 0.45rem;
}

.article-body strong {
    color: var(--cba-primary);
}

.article-body a {
    text-decoration: underline;
    text-underline-offset: 2px;
}

.article-sources {
    margin-top: 40px;
    padding-top: 24px;
    border-top: 1px solid rgba(27, 54, 93, 0.15);
}

.article-sources h2 {
    font-size: 1rem;
    color: var(--cba-primary);
    margin-bottom: 10px;
}

.article-sources ul {
    margin-left: 1.2rem;
    color: var(--cba-muted);
    font-size: 0.92rem;
}

.article-sources li {
    margin-bottom: 6px;
}

.article-cta {
    margin-top: 36px;
    padding: 22px 24px;
    background: linear-gradient(135deg, rgba(27, 54, 93, 0.06), rgba(0, 178, 174, 0.1));
    border-left: 4px solid var(--cba-accent);
}

.article-cta p {
    margin: 0;
    color: var(--cba-primary);
}

.article-cta a {
    font-weight: 600;
    text-decoration: none;
}

.back-link {
    display: inline-block;
    margin-bottom: 20px;
    font-size: 0.92rem;
    text-decoration: none;
    font-weight: 600;
}

/* Footer */
.footer {
    background: var(--cba-primary);
    color: white;
    padding: 48px 20px 24px;
}

.footer-inner {
    max-width: 1200px;
    margin: 0 auto;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 28px;
    margin-bottom: 28px;
}

.footer h4 {
    color: var(--cba-accent);
    margin-bottom: 12px;
    font-size: 1rem;
}

.footer p,
.footer a {
    color: rgba(255, 255, 255, 0.82);
    text-decoration: none;
    font-size: 0.95rem;
    line-height: 1.7;
}

.footer a:hover {
    color: var(--cba-accent);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.12);
    padding-top: 16px;
    text-align: center;
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.88rem;
}

@media (max-width: 860px) {
    .cba-nav {
        display: none;
    }

    .mobile-menu-toggle {
        display: flex;
    }

    .blog-hero {
        padding: 40px 20px 36px;
    }
}