:root {
    --color-primary: #137374;
    --color-dark-blue: #0a355b;
    --color-dark: #032137;
    --color-gray: #434343;
    --color-white: #ffffff;
    --color-soft: #eff8f6;
    --color-soft-cream: #fff7e9;
    --color-border: #dce9ea;
    --font-heading: 'Figtree', sans-serif;
    --font-body: 'Nunito', sans-serif;
}

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

html, body {
    overflow-x: hidden;
}

body {
    font-family: var(--font-body);
    color: var(--color-gray);
    background: var(--color-white);
    line-height: 1.65;
}

a {
    color: inherit;
    text-decoration: none;
}

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

.container {
    width: min(1100px, 92vw);
    margin: 0 auto;
}

/* Header */
.header-menu {
    position: fixed;
    inset: 0 0 auto 0;
    z-index: 1000;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px clamp(20px, 5vw, 100px);
    background: rgba(255, 255, 255, 0.94);
    backdrop-filter: blur(8px);
    border-bottom: 1px solid rgba(10, 53, 91, 0.06);
    transition: transform 0.3s ease, opacity 0.3s ease;
}

.header-menu.hidden {
    transform: translateY(-100%);
    opacity: 0;
}

.header-menu.visible {
    transform: translateY(0);
    opacity: 1;
}

.logo img {
    height: 80px;
    width: auto;
}

.nav-links {
    display: flex;
    gap: 34px;
    align-items: center;
}

.nav-links a {
    font-family: var(--font-body);
    font-weight: 700;
    font-size: 18px;
    color: var(--color-dark);
    transition: color 0.2s ease;
}

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

.mobile-nav-only {
    display: none !important;
}

.mobile-menu-btn {
    display: none;
    border: none;
    background: transparent;
    padding: 8px;
    cursor: pointer;
    z-index: 1002;
}

.mobile-menu-btn span {
    display: block;
    width: 25px;
    height: 3px;
    border-radius: 10px;
    background: var(--color-dark-blue);
    margin: 5px 0;
    transition: 0.25s;
}

.mobile-menu-btn.active span:nth-child(1) {
    transform: rotate(-45deg) translate(-5px, 6px);
}
.mobile-menu-btn.active span:nth-child(2) {
    opacity: 0;
}
.mobile-menu-btn.active span:nth-child(3) {
    transform: rotate(45deg) translate(-5px, -6px);
}

.btn-primary.mobile-nav-btn {
    background: var(--color-primary);
    color: var(--color-white) !important;
    border-radius: 25px;
    padding: 14px 28px;
}

/* Hero */
.blog-hero {
    padding: clamp(145px, 17vh, 190px) 0 28px;
    background: linear-gradient(180deg, var(--color-soft) 0%, rgba(239, 248, 246, 0.2) 100%);
}

.hero-eyebrow {
    display: inline-block;
    font-size: 13px;
    letter-spacing: 0.12em;
    font-weight: 800;
    text-transform: uppercase;
    color: var(--color-primary);
    margin-bottom: 12px;
}

.blog-hero h1 {
    font-family: var(--font-heading);
    font-size: clamp(34px, 5.2vw, 58px);
    line-height: 1.12;
    color: var(--color-dark);
    max-width: 900px;
    margin-bottom: 14px;
}

.hero-meta {
    font-size: 16px;
    color: #51606f;
    font-weight: 600;
}

.feature-wrap {
    margin-top: 12px;
}

.feature-image {
    width: 100%;
    max-height: 560px;
    object-fit: cover;
    border-radius: 28px;
    border: 1px solid var(--color-border);
    box-shadow: 0 14px 40px rgba(3, 33, 55, 0.09);
}

/* Article */
.article-body {
    padding: 56px 0 40px;
    max-width: 820px;
}

.article-body p,
.article-body li {
    font-size: clamp(17px, 1.55vw, 22px);
    line-height: 1.72;
    color: var(--color-gray);
}

.article-body p {
    margin-bottom: 18px;
}

.article-body h2 {
    font-family: var(--font-heading);
    font-size: clamp(28px, 3.1vw, 40px);
    line-height: 1.2;
    color: var(--color-dark);
    margin: 44px 0 14px;
}

.article-body ul,
.article-body ol {
    padding-left: 24px;
    margin: 10px 0 20px;
}

.article-body li {
    margin-bottom: 10px;
}

figure {
    margin: 28px 0;
}

figure img {
    border-radius: 20px;
    border: 1px solid var(--color-border);
}

figcaption {
    margin-top: 10px;
    font-size: 14px;
    color: #607080;
}

.insight-callout {
    margin: 26px 0;
    padding: 18px 20px;
    border-radius: 16px;
    background: rgba(120, 198, 196, 0.16);
    border: 1px solid rgba(19, 115, 116, 0.35);
}

.insight-callout p {
    margin: 0;
}

/* CTA */
.cta-section {
    background: var(--color-soft-cream);
    padding: 46px 0;
    margin-top: 20px;
    border-top: 1px solid rgba(253, 191, 73, 0.45);
    border-bottom: 1px solid rgba(253, 191, 73, 0.45);
}

.cta-inner h2 {
    font-family: var(--font-heading);
    color: var(--color-dark);
    font-size: clamp(28px, 3.6vw, 44px);
    line-height: 1.18;
    margin-bottom: 10px;
}

.cta-inner p {
    font-size: 18px;
    margin-bottom: 20px;
}

.cta-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: var(--color-primary);
    color: var(--color-white);
    border-radius: 999px;
    padding: 14px 26px;
    font-weight: 800;
    font-size: 18px;
    transition: transform 0.2s ease, background 0.2s ease;
}

.cta-btn:hover {
    transform: translateY(-2px);
    background: #0f6060;
}

.share-row {
    margin-top: 16px;
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.share-btn {
    border: 1px solid rgba(10, 53, 91, 0.2);
    background: white;
    color: var(--color-dark-blue);
    border-radius: 999px;
    padding: 10px 14px;
    font-weight: 700;
    cursor: pointer;
}

.share-btn:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
}

/* FAQ */
.faq-section {
    padding: 52px 0;
    max-width: 820px;
}

.faq-section h2 {
    font-family: var(--font-heading);
    color: var(--color-dark);
    font-size: clamp(28px, 3.3vw, 42px);
    margin-bottom: 18px;
}

.faq-item {
    background: #fff;
    border: 1px solid #ecd7ab;
    border-radius: 16px;
    margin-bottom: 12px;
    overflow: hidden;
}

.faq-item summary {
    cursor: pointer;
    list-style: none;
    position: relative;
    padding: 16px 46px 16px 16px;
    font-family: var(--font-heading);
    font-size: 19px;
    color: var(--color-dark);
}

.faq-item summary::after {
    content: '+';
    position: absolute;
    right: 16px;
    top: 50%;
    transform: translateY(-50%);
    width: 24px;
    height: 24px;
    border-radius: 999px;
    border: 1px solid #d0ad63;
    display: grid;
    place-items: center;
    color: #d0ad63;
    font-size: 18px;
}

.faq-item[open] summary::after {
    content: '−';
}

.faq-item p {
    padding: 0 16px 16px;
    font-size: 16px;
    line-height: 1.6;
}

/* Related */
.related-section {
    padding: 8px 0 50px;
}

.related-section h2 {
    font-family: var(--font-heading);
    color: var(--color-dark);
    font-size: clamp(25px, 2.8vw, 34px);
    margin-bottom: 14px;
}

.related-card {
    display: grid;
    grid-template-columns: 200px 1fr;
    gap: 14px;
    align-items: center;
    border: 1px solid var(--color-border);
    border-radius: 18px;
    overflow: hidden;
    background: var(--color-white);
}

.related-card img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    min-height: 120px;
}

.related-card div {
    padding: 10px 10px 10px 0;
}

.related-card .tag {
    display: inline-block;
    font-size: 12px;
    font-weight: 800;
    color: var(--color-primary);
    text-transform: uppercase;
    margin-bottom: 6px;
}

.related-card h3 {
    font-family: var(--font-heading);
    color: var(--color-dark);
    font-size: 20px;
    line-height: 1.25;
}

/* Footer */
.footer {
    background-color: var(--color-dark-blue);
    padding: 30px 50px 20px;
    margin-top: 10px;
}

.footer-content {
    display: flex;
    align-items: flex-start;
    gap: 50px;
}

.footer-logo {
    width: 100px;
}

.footer-links-container {
    display: flex;
    gap: 25px;
    flex: 1;
}

.footer-column {
    display: flex;
    flex-direction: column;
    gap: 12px;
    min-width: 90px;
}

.footer-header,
.contact-label,
.contact-value,
.copyright {
    font-family: var(--font-body);
    color: var(--color-white);
}

.footer-header { font-weight: 700; font-size: 16px; }
.contact-label { font-weight: 700; font-size: 14px; }
.contact-value { font-weight: 400; font-size: 14px; text-decoration: none; }
.contact-value:hover { text-decoration: underline; }

.linkedin-link img {
    width: 20px;
    height: 20px;
}

.copyright {
    margin-top: 20px;
    text-align: right;
    font-size: 12px;
}

/* Responsive */
@media (max-width: 980px) {
    .footer-content {
        flex-direction: column;
        gap: 26px;
    }

    .footer-links-container {
        display: grid;
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 20px;
    }

    .copyright {
        text-align: center;
    }
}

@media (max-width: 768px) {
    .logo img {
        height: 60px;
    }

    .mobile-menu-btn {
        display: block;
    }

    .nav-links {
        display: none;
        position: fixed;
        inset: 0;
        background: #eff8f6;
        flex-direction: column;
        justify-content: center;
        align-items: center;
        gap: 36px;
        z-index: 1001;
    }

    .nav-links.active {
        display: flex;
    }

    .nav-links.active .mobile-nav-only {
        display: block !important;
    }

    .mobile-nav-logo {
        width: 58px;
    }

    .article-body p,
    .article-body li {
        font-size: 16px;
    }

    .faq-item summary {
        font-size: 17px;
    }

    .related-card {
        grid-template-columns: 1fr;
    }

    .related-card div {
        padding: 10px 12px 14px;
    }

    .footer {
        padding: 24px 20px;
    }

    .footer-logo-section {
        display: none;
    }

    .footer-links-container {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .footer-column,
    .footer-detail {
        align-items: center;
    }
}