:root {
    --primary: #0F2B46;
    --accent: #D4A53C;
    --accent-hover: #E8B94A;
    --dark: #0A1628;
    --light: #F8F6F0;
    --gray: #6B7280;
    --green: #10B981;
    --card-bg: #FFFFFF;
    --section-alt: #F1EDE4;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: 'Inter', sans-serif; color: #1F2937; line-height: 1.7; background: var(--light); }
a { text-decoration: none; color: inherit; }

/* NAV */
nav {
    position: fixed; top: 0; width: 100%; z-index: 1000;
    background: rgba(15,43,70,0.97); backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(212,165,60,0.2);
}
.nav-inner {
    max-width: 1200px; margin: 0 auto; padding: 0 24px;
    display: flex; align-items: center; justify-content: space-between; height: 70px;
}
.nav-logo { font-size: 1.3rem; font-weight: 800; color: white; }
.nav-logo span { color: var(--accent); }
.nav-links { display: flex; gap: 28px; align-items: center; }
.nav-links a { color: rgba(255,255,255,0.85); font-size: 0.9rem; font-weight: 500; transition: color 0.2s; }
.nav-links a:hover { color: var(--accent); }
.nav-right { display: flex; align-items: center; gap: 16px; }
.lang-toggle {
    background: rgba(255,255,255,0.1); border: 1px solid rgba(255,255,255,0.2);
    color: white; padding: 6px 12px; border-radius: 6px; cursor: pointer;
    font-size: 0.8rem; font-weight: 600;
}
.lang-toggle:hover { background: rgba(255,255,255,0.2); }
.nav-cta {
    background: var(--accent); color: var(--primary); padding: 10px 20px;
    border-radius: 8px; font-weight: 700; font-size: 0.85rem; transition: all 0.2s;
}
.nav-cta:hover { background: var(--accent-hover); transform: translateY(-1px); }
.hamburger { display: none; background: none; border: none; color: white; font-size: 1.5rem; cursor: pointer; }

/* BLOG HEADER */
.blog-hero {
    background: linear-gradient(135deg, var(--dark), var(--primary));
    padding: 70px 24px 40px; text-align: center;
}
.blog-hero .tag { display: inline-block; background: rgba(212,165,60,0.15); color: var(--accent); padding: 6px 16px; border-radius: 50px; font-size: 0.8rem; font-weight: 700; text-transform: uppercase; letter-spacing: 1px; margin-bottom: 16px; }
.blog-hero h1 { font-size: 2.4rem; font-weight: 800; color: white; max-width: 700px; margin: 0 auto 12px; line-height: 1.2; }
.blog-hero .meta { color: rgba(255,255,255,0.8); font-size: 0.95rem; max-width: 600px; margin: 0 auto; }

/* ARTICLE */
.article-container { max-width: 750px; margin: -30px auto 60px; padding: 0 24px; }
.article-card {
    background: white; border-radius: 16px; padding: 48px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.06);
}
.article-card h2 { font-size: 1.5rem; font-weight: 700; color: var(--primary); margin: 32px 0 12px; }
.article-card h3 { font-size: 1.2rem; font-weight: 700; color: var(--primary); margin: 24px 0 8px; }
.article-card p { margin-bottom: 16px; color: #374151; }
.article-card ul, .article-card ol { margin: 0 0 16px 24px; color: #374151; }
.article-card li { margin-bottom: 8px; }
.article-card .highlight {
    background: rgba(212,165,60,0.08); border-left: 4px solid var(--accent);
    padding: 20px 24px; border-radius: 0 10px 10px 0; margin: 24px 0;
}
.article-card .highlight strong { color: var(--primary); }
.article-card .stat-box {
    display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin: 24px 0;
}
.article-card .stat-item {
    background: var(--section-alt); border-radius: 10px; padding: 16px; text-align: center;
}
.article-card .stat-item .val { font-size: 1.3rem; font-weight: 800; color: var(--primary); }
.article-card .stat-item .lbl { font-size: 0.75rem; color: var(--gray); margin-top: 4px; }

/* CTA BOX */
.cta-box {
    background: linear-gradient(135deg, var(--primary), var(--dark));
    border-radius: 14px; padding: 32px; text-align: center; margin: 40px 0 0;
}
.cta-box h3 { color: white; font-size: 1.2rem; margin-bottom: 8px; }
.cta-box p { color: rgba(255,255,255,0.7); font-size: 0.9rem; margin-bottom: 16px; }
.cta-box a {
    display: inline-block; background: var(--accent); color: var(--primary);
    padding: 12px 28px; border-radius: 8px; font-weight: 700; font-size: 0.9rem;
}

/* BLOG INDEX */
.blog-grid { max-width: 1100px; margin: -30px auto 60px; padding: 0 24px; display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.blog-card { background: white; border-radius: 14px; overflow: hidden; border: 1px solid #E5E7EB; transition: all 0.3s; }
.blog-card:hover { transform: translateY(-4px); box-shadow: 0 12px 40px rgba(0,0,0,0.08); }
.blog-card-img { height: 180px; background: var(--primary); display: flex; align-items: center; justify-content: center; font-size: 3rem; }
.blog-card-body { padding: 24px; }
.blog-card-tag { display: inline-block; font-size: 0.7rem; font-weight: 700; padding: 3px 10px; border-radius: 50px; text-transform: uppercase; margin-bottom: 8px; }
.blog-card-tag.strategy { background: #DBEAFE; color: #1E40AF; }
.blog-card-tag.market { background: #D1FAE5; color: #065F46; }
.blog-card-tag.guide { background: #FDE68A; color: #92400E; }
.blog-card-tag.finance { background: #E0E7FF; color: #3730A3; }
.blog-card h3 { font-size: 1.05rem; font-weight: 700; color: var(--primary); margin-bottom: 8px; line-height: 1.3; }
.blog-card p { font-size: 0.85rem; color: var(--gray); line-height: 1.5; }
.blog-card-meta { padding: 16px 24px; border-top: 1px solid #F3F4F6; font-size: 0.75rem; color: var(--gray); }

/* FOOTER */
footer { background: var(--dark); padding: 40px 24px; text-align: center; color: rgba(255,255,255,0.4); font-size: 0.85rem; }
footer a { color: var(--accent); }
footer .logo { font-size: 1.1rem; font-weight: 800; color: white; margin-bottom: 8px; }
footer .logo span { color: var(--accent); }

@media (max-width: 768px) {
    .nav-links { display: none; }
    .hamburger { display: block; }
    .nav-links.open { display: flex; flex-direction: column; position: absolute; top: 70px; left: 0; right: 0; background: var(--primary); padding: 20px 24px; gap: 16px; }
    .blog-hero h1 { font-size: 1.6rem; }
    .article-card { padding: 28px; }
    .article-card .stat-box { grid-template-columns: 1fr; }
    .blog-grid { grid-template-columns: 1fr; }
}