:root { --navy: #0D1B4B; --red: #C0392B; --red-light: #E74C3C; --white: #FFFFFF; --gray: #F4F6FB; --gray-text: #8892A4; --border: #E5EAF3; }
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { font-family: 'Manrope', sans-serif; background: var(--gray); color: var(--navy); }

.article-nav { background: var(--navy); padding: 16px 5%; display: flex; align-items: center; justify-content: space-between; position: sticky; top: 0; z-index: 100; box-shadow: 0 2px 16px rgba(0,0,0,0.2); }
.nav-logo { display: flex; align-items: center; gap: 12px; text-decoration: none; }
.nav-logo img { width: 42px; height: 42px; border-radius: 8px; }
.nav-logo-name { font-family: 'Montserrat', sans-serif; font-weight: 900; font-size: 12px; color: var(--white); letter-spacing: 1px; display: block; }
.nav-logo-sub { font-size: 10px; color: rgba(255,255,255,0.6); display: block; }
.nav-back { color: rgba(255,255,255,0.8); text-decoration: none; font-size: 13px; font-weight: 600; transition: color 0.2s; }
.nav-back:hover { color: var(--white); }

.article-hero { background: var(--navy); padding: 60px 5% 48px; position: relative; overflow: hidden; }
.article-hero::before { content: ''; position: absolute; top: -100px; right: -100px; width: 400px; height: 400px; background: radial-gradient(circle, rgba(192,57,43,0.15) 0%, transparent 70%); border-radius: 50%; }
.hero-inner { max-width: 800px; margin: 0 auto; position: relative; z-index: 1; }
.article-category { display: inline-flex; align-items: center; gap: 8px; background: rgba(192,57,43,0.2); border: 1px solid rgba(192,57,43,0.4); color: #E87B6F; padding: 5px 14px; border-radius: 100px; font-size: 11px; font-weight: 700; letter-spacing: 1px; text-transform: uppercase; margin-bottom: 24px; }
.article-category::before { content: ''; width: 6px; height: 6px; background: var(--red); border-radius: 50%; }
.article-title { font-family: 'Montserrat', sans-serif; font-size: clamp(28px, 4vw, 44px); font-weight: 900; color: var(--white); line-height: 1.15; margin-bottom: 20px; }
.article-meta { font-size: 13px; color: rgba(255,255,255,0.5); }

.article-body { max-width: 800px; margin: 0 auto; padding: 56px 5%; }
.article-intro { font-size: 18px; line-height: 1.8; color: var(--navy); font-weight: 500; background: var(--white); border-left: 4px solid var(--red); padding: 24px 28px; border-radius: 0 12px 12px 0; margin-bottom: 36px; box-shadow: 0 4px 16px rgba(13,27,75,0.06); }
.article-text { font-size: 16px; line-height: 1.8; color: #2C3E6B; margin-bottom: 24px; }
.article-heading { font-family: 'Montserrat', sans-serif; font-size: 20px; font-weight: 800; color: var(--navy); margin: 40px 0 16px; padding-bottom: 10px; border-bottom: 2px solid var(--border); position: relative; }
.article-heading::after { content: ''; position: absolute; bottom: -2px; left: 0; width: 48px; height: 2px; background: var(--red); }

.article-list { margin: 0 0 28px; padding: 0; list-style: none; display: flex; flex-direction: column; gap: 10px; }
.article-list li { display: flex; align-items: flex-start; gap: 12px; font-size: 15px; line-height: 1.7; color: #2C3E6B; padding: 14px 18px; background: var(--white); border-radius: 10px; border: 1px solid var(--border); }
.article-list li::before { content: ''; width: 8px; height: 8px; min-width: 8px; background: var(--red); border-radius: 50%; margin-top: 7px; }

.article-steps { list-style: none; padding: 0; margin: 0 0 28px; display: flex; flex-direction: column; gap: 10px; }
.article-steps li { display: flex; align-items: flex-start; gap: 16px; font-size: 15px; line-height: 1.7; color: #2C3E6B; padding: 16px 20px; background: var(--white); border-radius: 10px; border: 1px solid var(--border); }
.step-num { min-width: 28px; height: 28px; background: var(--navy); color: var(--white); border-radius: 50%; display: flex; align-items: center; justify-content: center; font-family: 'Montserrat', sans-serif; font-weight: 900; font-size: 12px; flex-shrink: 0; margin-top: 2px; }

.article-warning { background: rgba(192,57,43,0.08); border: 1px solid rgba(192,57,43,0.25); border-radius: 12px; padding: 18px 22px; font-size: 14px; line-height: 1.7; color: var(--navy); font-weight: 600; margin-bottom: 28px; }

.article-example { background: var(--navy); border-radius: 16px; padding: 28px 32px; margin-bottom: 28px; }
.example-title { font-family: 'Montserrat', sans-serif; font-weight: 800; font-size: 14px; color: rgba(255,255,255,0.7); text-transform: uppercase; letter-spacing: 1px; margin-bottom: 16px; }
.article-example p { font-size: 15px; line-height: 1.8; color: rgba(255,255,255,0.9); }

.article-table-wrap { overflow-x: auto; margin-bottom: 28px; border-radius: 12px; border: 1px solid var(--border); }
.article-table { width: 100%; border-collapse: collapse; background: var(--white); }
.article-table thead { background: var(--navy); }
.article-table th { padding: 14px 20px; text-align: left; font-family: 'Montserrat', sans-serif; font-weight: 700; font-size: 12px; color: var(--white); letter-spacing: 0.5px; }
.article-table td { padding: 14px 20px; font-size: 14px; color: var(--navy); border-bottom: 1px solid var(--border); }
.article-table tr:last-child td { border-bottom: none; }
.article-table .total-row td { font-weight: 700; color: var(--red); background: rgba(13,27,75,0.04); }

.article-cta { background: var(--navy); border-radius: 20px; padding: 40px; text-align: center; margin-top: 48px; }
.article-cta h3 { font-family: 'Montserrat', sans-serif; font-weight: 900; font-size: 22px; color: var(--white); margin-bottom: 12px; }
.article-cta p { font-size: 15px; color: rgba(255,255,255,0.7); margin-bottom: 28px; }
.btn-cta { display: inline-flex; align-items: center; gap: 8px; background: var(--red); color: var(--white); padding: 16px 32px; border-radius: 8px; font-weight: 700; font-size: 15px; text-decoration: none; transition: all 0.2s; }
.btn-cta:hover { background: var(--red-light); transform: translateY(-2px); }

/* ── BLOG LISTING PAGE ── */
.blog-header { max-width: 800px; margin: 0 auto; padding: 48px 5% 8px; }
.blog-header h1 { font-family: 'Montserrat', sans-serif; font-size: clamp(26px, 4vw, 36px); font-weight: 900; color: var(--navy); margin-bottom: 8px; }
.blog-header p { font-size: 15px; color: var(--gray-text); }

.blog-grid { max-width: 800px; margin: 0 auto; padding: 32px 5% 64px; display: flex; flex-direction: column; gap: 20px; }

.blog-card { background: var(--white); border-radius: 16px; overflow: hidden; border: 1px solid var(--border); transition: all 0.3s; text-decoration: none; display: block; }
.blog-card:hover { transform: translateY(-3px); box-shadow: 0 16px 40px rgba(13,27,75,0.08); border-color: rgba(192,57,43,0.2); }

.blog-card-top { background: var(--navy); padding: 22px 28px; }
.blog-card-cat { font-size: 10px; font-weight: 700; letter-spacing: 1.5px; text-transform: uppercase; color: var(--red); margin-bottom: 8px; }
.blog-card-title { font-family: 'Montserrat', sans-serif; font-weight: 800; font-size: 18px; color: var(--white); line-height: 1.3; }

.blog-card-body { padding: 20px 28px; }
.blog-card-excerpt { font-size: 14px; color: #2C3E6B; line-height: 1.6; margin-bottom: 16px; }
.blog-card-meta { display: flex; justify-content: space-between; align-items: center; }
.blog-card-date { font-size: 12px; color: var(--gray-text); }
.blog-card-link { font-size: 13px; font-weight: 700; color: var(--red); }

@media (max-width: 768px) {
  .article-hero { padding: 40px 5% 32px; }
  .article-body { padding: 40px 5%; }
  .article-intro { font-size: 16px; }
}