:root {
      --navy: #0F2439;
      --navy-mid: #1a2f4a;
      --navy-light: #243b5c;
      --accent: #3B82F6;
      --accent-light: #60A5FA;
      --accent-glow: rgba(59,130,246,0.15);
      --green: #10B981;
      --green-light: #34D399;
      --gold: #F59E0B;
      --red: #EF4444;
      --white: #ffffff;
      --light: #f0f4f8;
      --gray-100: #f1f5f9;
      --gray-200: #e2e8f0;
      --gray-300: #cbd5e1;
      --text: #1e293b;
      --text-light: #64748b;
      --text-lighter: #94a3b8;
    }
    * { margin: 0; padding: 0; box-sizing: border-box; }
    body { font-family: 'Segoe UI', system-ui, -apple-system, sans-serif; color: var(--text); line-height: 1.6; }

    /* NAV */
    nav {
      position: sticky; top: 0; z-index: 1000;
      background: rgba(15,36,57,0.97); backdrop-filter: blur(12px);
      padding: 0 2rem; display: flex; align-items: center; justify-content: space-between;
      border-bottom: 1px solid rgba(59,130,246,0.15);
    }
    .nav-brand { display: flex; align-items: center; gap: 0.75rem; text-decoration: none; padding: 0.9rem 0; }
    .nav-brand .logo-icon {
      width: 38px; height: 38px; border-radius: 8px;
      background: linear-gradient(135deg, var(--accent), #2563EB);
      display: flex; align-items: center; justify-content: center;
      font-size: 0.85rem; font-weight: 900; color: var(--white);
    }
    .nav-brand .brand-text { color: var(--white); font-size: 1.15rem; font-weight: 700; letter-spacing: -0.3px; }
    .nav-brand .brand-text em { color: var(--accent-light); font-style: normal; }
    .nav-links { display: flex; gap: 0.25rem; align-items: center; }
    .nav-links a {
      color: rgba(255,255,255,0.75); text-decoration: none; padding: 0.5rem 1rem;
      border-radius: 6px; font-size: 0.9rem; transition: all 0.2s;
    }
    .nav-links a:hover { background: rgba(59,130,246,0.1); color: var(--accent-light); }
    .nav-links a.active { color: var(--accent-light); }
    .nav-cta {
      background: var(--accent) !important; color: var(--white) !important;
      font-weight: 600 !important; padding: 0.5rem 1.25rem !important;
      border-radius: 6px !important;
    }
    .nav-cta:hover { background: var(--accent-light) !important; }

    /* PAGE HERO */
    .page-hero {
      background: linear-gradient(160deg, var(--navy) 0%, var(--navy-mid) 60%, var(--navy-light) 100%);
      color: var(--white); padding: 4.5rem 2rem 4rem; text-align: center;
      position: relative; overflow: hidden;
    }
    .page-hero::before {
      content: ''; position: absolute; top: -40%; right: -20%;
      width: 500px; height: 500px; border-radius: 50%;
      background: radial-gradient(circle, rgba(59,130,246,0.07) 0%, transparent 70%);
      pointer-events: none;
    }
    .hero-badge {
      display: inline-block; background: rgba(59,130,246,0.12);
      border: 1px solid rgba(59,130,246,0.3); color: var(--accent-light);
      padding: 0.4rem 1.2rem; border-radius: 50px; font-size: 0.82rem;
      letter-spacing: 1px; text-transform: uppercase; margin-bottom: 1.25rem;
    }
    .page-hero h1 {
      font-size: clamp(1.9rem, 4vw, 3rem); font-weight: 800;
      line-height: 1.15; margin-bottom: 1rem; letter-spacing: -0.4px;
    }
    .page-hero h1 span { color: var(--accent-light); }
    .page-hero p {
      font-size: 1.1rem; color: rgba(255,255,255,0.75);
      max-width: 580px; margin: 0 auto;
    }

    /* BLOG GRID */
    .blog-section { background: var(--gray-100); padding: 4rem 2rem; min-height: 400px; }
    .container { max-width: 1100px; margin: 0 auto; }

    .blog-filters {
      display: flex; gap: 0.5rem; margin-bottom: 2.5rem; flex-wrap: wrap;
    }
    .filter-btn {
      padding: 0.45rem 1.1rem; border-radius: 50px; font-size: 0.85rem;
      font-weight: 600; cursor: pointer; border: 1px solid var(--gray-300);
      background: var(--white); color: var(--text-light); transition: all 0.2s;
    }
    .filter-btn:hover, .filter-btn.active {
      background: var(--accent); color: var(--white); border-color: var(--accent);
    }

    .blog-grid {
      display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.75rem;
    }

    .post-card {
      background: var(--white); border-radius: 14px;
      border: 1px solid var(--gray-200); overflow: hidden;
      transition: all 0.25s; display: flex; flex-direction: column;
      text-decoration: none; color: inherit;
    }
    .post-card:hover { transform: translateY(-4px); box-shadow: 0 12px 35px rgba(15,36,57,0.1); border-color: var(--accent); }

    .post-thumb {
      height: 160px; display: flex; align-items: center; justify-content: center;
      font-size: 2.5rem;
    }
    .post-thumb.blue { background: linear-gradient(135deg, #EFF6FF, #DBEAFE); }
    .post-thumb.green { background: linear-gradient(135deg, #ECFDF5, #D1FAE5); }
    .post-thumb.gold { background: linear-gradient(135deg, #FFFBEB, #FEF3C7); }
    .post-thumb.navy { background: linear-gradient(135deg, #EFF6FF, #BFDBFE); }

    .post-body { padding: 1.5rem; flex: 1; display: flex; flex-direction: column; }
    .post-meta { display: flex; align-items: center; gap: 0.75rem; margin-bottom: 0.75rem; }
    .post-tag {
      font-size: 0.72rem; font-weight: 700; letter-spacing: 1px;
      text-transform: uppercase; padding: 0.2rem 0.65rem;
      border-radius: 50px;
    }
    .post-tag.blue { background: rgba(59,130,246,0.1); color: var(--accent); }
    .post-tag.green { background: rgba(16,185,129,0.1); color: #059669; }
    .post-tag.gold { background: rgba(245,158,11,0.1); color: #B45309; }
    .post-date { font-size: 0.8rem; color: var(--text-lighter); }

    .post-body h3 {
      font-size: 1.05rem; font-weight: 700; color: var(--navy);
      margin-bottom: 0.6rem; line-height: 1.35;
    }
    .post-body p { font-size: 0.9rem; color: var(--text-light); line-height: 1.65; flex: 1; }
    .post-read-more {
      display: inline-flex; align-items: center; gap: 0.4rem;
      margin-top: 1.25rem; font-size: 0.88rem; font-weight: 600;
      color: var(--accent); text-decoration: none;
    }
    .post-read-more:hover { color: #2563EB; }

    /* EMPTY STATE */
    .empty-state {
      text-align: center; padding: 4rem 2rem;
      background: var(--white); border-radius: 16px;
      border: 1px solid var(--gray-200);
    }
    .empty-icon {
      width: 72px; height: 72px; border-radius: 16px;
      background: linear-gradient(135deg, rgba(59,130,246,0.1), rgba(59,130,246,0.05));
      display: flex; align-items: center; justify-content: center;
      font-size: 2rem; margin: 0 auto 1.5rem;
    }
    .empty-state h3 { color: var(--navy); font-size: 1.3rem; margin-bottom: 0.6rem; }
    .empty-state p { color: var(--text-light); max-width: 420px; margin: 0 auto 1.75rem; font-size: 0.95rem; }

    /* NEWSLETTER STRIP */
    .newsletter-strip {
      background: linear-gradient(135deg, var(--navy), var(--navy-mid));
      padding: 3.5rem 2rem; text-align: center; color: var(--white);
    }
    .newsletter-strip h2 { font-size: 1.6rem; font-weight: 800; margin-bottom: 0.6rem; }
    .newsletter-strip p { color: rgba(255,255,255,0.7); margin-bottom: 1.75rem; font-size: 0.95rem; }
    .newsletter-form { display: flex; gap: 0.75rem; justify-content: center; flex-wrap: wrap; max-width: 480px; margin: 0 auto; }
    .newsletter-form input {
      flex: 1; min-width: 220px; padding: 0.85rem 1.25rem;
      border: 1px solid rgba(255,255,255,0.2); border-radius: 8px;
      background: rgba(255,255,255,0.08); color: var(--white);
      font-size: 0.95rem; font-family: inherit;
    }
    .newsletter-form input::placeholder { color: rgba(255,255,255,0.4); }
    .newsletter-form input:focus { outline: none; border-color: var(--accent-light); }
    .newsletter-form button {
      padding: 0.85rem 1.75rem; background: var(--accent); color: var(--white);
      border: none; border-radius: 8px; font-weight: 700; font-size: 0.95rem;
      cursor: pointer; transition: all 0.2s; font-family: inherit;
    }
    .newsletter-form button:hover { background: #2563EB; }

    /* FOOTER */
    footer { background: #080f1a; color: rgba(255,255,255,0.5); padding: 3rem 2rem 1.5rem; }
    .footer-inner {
      max-width: 1100px; margin: 0 auto;
      display: flex; justify-content: space-between; align-items: center;
      flex-wrap: wrap; gap: 1rem;
    }
    .footer-brand-text { font-size: 0.95rem; font-weight: 600; color: rgba(255,255,255,0.7); }
    .footer-brand-text em { color: var(--accent-light); font-style: normal; }
    .footer-powered { font-size: 0.82rem; color: rgba(255,255,255,0.4); }
    .footer-powered a { color: rgba(255,255,255,0.55); text-decoration: none; }
    .footer-powered a:hover { color: var(--accent-light); }
    .footer-links { display: flex; gap: 1.5rem; flex-wrap: wrap; }
    .footer-links a { color: rgba(255,255,255,0.5); text-decoration: none; font-size: 0.85rem; }
    .footer-links a:hover { color: var(--accent-light); }

    /* RESPONSIVE */
    @media (max-width: 900px) {
      .nav-links { display: none; }
      .blog-grid { grid-template-columns: 1fr 1fr; }
    }
    @media (max-width: 600px) {
      .blog-grid { grid-template-columns: 1fr; }
      .page-hero h1 { font-size: 1.75rem; }
    }
/* csp-helpers */
.nav-signin{border:1px solid rgba(255,255,255,0.2);border-radius:6px;padding:0.5rem 1rem;text-decoration:none;color:#fff;}
.sub-success{margin-top:1rem;color:var(--green-light);font-weight:600;font-size:0.95rem;}
.is-hidden{display:none;}