* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: 'Segoe UI', sans-serif; color: #222; background: #f0f7f4; }

/* NAV */
nav {
  position: fixed; top: 0; width: 100%; z-index: 100;
  background: rgba(15,40,70,0.97); backdrop-filter: blur(8px);
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 40px; height: 65px;
}
.logo { color: #fff; font-size: 20px; font-weight: 700; letter-spacing: 1px; text-decoration: none; }
.logo span { color: #2ecc71; }
nav ul { list-style: none; display: flex; gap: 24px; }
nav ul a { color: #ccd; text-decoration: none; font-size: 14px; transition: color .2s; }
nav ul a:hover { color: #2ecc71; }
.nav-btn {
  background: #2ecc71; color: #fff; padding: 8px 20px;
  border-radius: 25px; text-decoration: none; font-size: 13px; font-weight: 600;
  transition: background .2s;
}
.nav-btn:hover { background: #27ae60; }
.burger { display: none; flex-direction: column; gap: 5px; cursor: pointer; padding: 5px; }
.burger span { width: 24px; height: 2px; background: #fff; border-radius: 2px; }

/* BREADCRUMB */
.breadcrumb {
  max-width: 900px; margin: 0 auto; padding: 90px 20px 0;
  font-size: 13px; color: #888;
}
.breadcrumb a { color: #2ecc71; text-decoration: none; }

/* BACK BUTTON */
.back-btn {
  display: inline-flex; align-items: center; gap: 7px;
  background: #fff; border: 2px solid #e8f5e9;
  color: #0f2846; font-size: 14px; font-weight: 600;
  padding: 9px 20px; border-radius: 25px; text-decoration: none;
  margin: 14px 0 0; transition: all .2s;
  box-shadow: 0 2px 10px rgba(0,0,0,0.06);
}
.back-btn:hover { border-color: #2ecc71; color: #2ecc71; transform: translateX(-3px); }
.breadcrumb a:hover { text-decoration: underline; }

/* ARTICLE LAYOUT */
.article-wrap {
  max-width: 1100px; margin: 0 auto;
  padding: 30px 20px 60px;
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: 40px;
  align-items: start;
}
.article-main { min-width: 0; }

/* ARTICLE META */
.article-meta {
  display: flex; flex-wrap: wrap; gap: 12px; align-items: center;
  margin-bottom: 18px;
}
.article-cat {
  background: rgba(46,204,113,0.12); color: #2ecc71;
  padding: 4px 14px; border-radius: 20px;
  font-size: 12px; font-weight: 700; text-transform: uppercase; letter-spacing: 1px;
}
.article-date, .article-time { font-size: 13px; color: #999; }

/* ARTICLE HEAD */
.article-main h1 {
  font-size: 32px; font-weight: 800; color: #0f2846;
  line-height: 1.25; margin-bottom: 18px;
}
.article-updated {
  background: #fff8e1; border-left: 4px solid #f39c12;
  padding: 10px 16px; border-radius: 0 8px 8px 0;
  font-size: 13px; color: #7a6000; margin-bottom: 30px;
}

/* ARTICLE CONTENT */
.article-content { line-height: 1.8; font-size: 15px; color: #333; }
.article-content h2 {
  font-size: 22px; font-weight: 800; color: #0f2846;
  margin: 35px 0 14px; padding-bottom: 8px;
  border-bottom: 2px solid #e8f5e9;
}
.article-content h3 {
  font-size: 18px; font-weight: 700; color: #0f2846;
  margin: 25px 0 10px;
}
.article-content p { margin-bottom: 14px; }
.article-content ul, .article-content ol {
  margin: 12px 0 16px 20px;
}
.article-content li { margin-bottom: 7px; }
.article-content strong { color: #0f2846; }
.article-content a { color: #2ecc71; text-decoration: none; border-bottom: 1px solid rgba(46,204,113,0.3); }
.article-content a:hover { border-bottom-color: #2ecc71; }

/* STEPS */
.step {
  display: flex; gap: 18px; margin-bottom: 24px;
  background: #fff; border-radius: 14px; padding: 20px;
  border: 1px solid #e8f5e9; box-shadow: 0 2px 10px rgba(0,0,0,0.05);
}
.step-num {
  flex-shrink: 0; width: 40px; height: 40px;
  border-radius: 50%; background: linear-gradient(135deg, #0f2846, #1a4a7a);
  color: #fff; font-size: 17px; font-weight: 800;
  display: flex; align-items: center; justify-content: center;
}
.step-body h3 { font-size: 16px; font-weight: 700; color: #0f2846; margin-bottom: 6px; }
.step-body p { font-size: 14px; color: #555; line-height: 1.7; margin: 0; }

/* TABLE */
.article-table { width: 100%; border-collapse: collapse; margin: 20px 0; font-size: 14px; }
.article-table th {
  background: #0f2846; color: #fff;
  padding: 11px 14px; text-align: left; font-weight: 600;
}
.article-table td { padding: 10px 14px; border-bottom: 1px solid #e8f5e9; }
.article-table tr:last-child td { border-bottom: none; }
.article-table tr:nth-child(even) td { background: #f8fbf8; }
.article-table tr.total td { font-weight: 700; background: #e8f5e9; color: #0f2846; }

/* WARNING / INFO BOXES */
.box-warning {
  background: #fff3cd; border-left: 4px solid #f39c12;
  padding: 14px 18px; border-radius: 0 10px 10px 0; margin: 20px 0;
  font-size: 14px; color: #7a5500;
}
.box-info {
  background: #e8f5e9; border-left: 4px solid #2ecc71;
  padding: 14px 18px; border-radius: 0 10px 10px 0; margin: 20px 0;
  font-size: 14px; color: #1a6b3c;
}

/* ARTICLE CTA */
.article-cta {
  background: linear-gradient(135deg, #0f2846, #1a4a7a);
  border-radius: 18px; padding: 35px; text-align: center;
  margin: 40px 0 25px; color: #fff;
}
.article-cta h3 { font-size: 22px; font-weight: 800; margin-bottom: 10px; }
.article-cta p { color: #b0c4de; font-size: 15px; margin-bottom: 22px; }
.cta-btn {
  display: inline-block; background: #2ecc71; color: #fff;
  padding: 13px 30px; border-radius: 30px; text-decoration: none;
  font-weight: 700; font-size: 15px; margin: 0 6px 10px;
  transition: background .2s;
}
.cta-btn:hover { background: #27ae60; }
.cta-btn-out {
  display: inline-block; border: 2px solid rgba(255,255,255,0.3); color: #fff;
  padding: 12px 28px; border-radius: 30px; text-decoration: none;
  font-weight: 600; font-size: 14px; margin: 0 6px 10px;
  transition: border-color .2s;
}
.cta-btn-out:hover { border-color: #2ecc71; color: #2ecc71; }

/* TAGS */
.article-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 20px; }
.article-tags span {
  background: #e8f5e9; color: #2e7d52;
  padding: 5px 14px; border-radius: 20px; font-size: 12px; font-weight: 600;
}

/* SIDEBAR */
.article-sidebar { position: sticky; top: 85px; }
.sidebar-block {
  background: #fff; border-radius: 16px; padding: 24px;
  border: 2px solid #e8f5e9; box-shadow: 0 4px 20px rgba(0,0,0,0.06);
  margin-bottom: 20px;
}
.sidebar-block h4 {
  font-size: 14px; font-weight: 700; color: #0f2846;
  text-transform: uppercase; letter-spacing: .5px; margin-bottom: 15px;
  padding-bottom: 10px; border-bottom: 2px solid #e8f5e9;
}
.sidebar-block ul { list-style: none; display: flex; flex-direction: column; gap: 10px; }
.sidebar-block ul li a {
  font-size: 13px; color: #444; text-decoration: none; line-height: 1.4;
  display: block; padding-left: 12px; border-left: 3px solid #e8f5e9;
  transition: border-color .2s, color .2s;
}
.sidebar-block ul li a:hover { color: #2ecc71; border-left-color: #2ecc71; }
.sidebar-cta {
  background: linear-gradient(135deg, #0f2846, #1a4a7a);
  border-radius: 16px; padding: 24px; text-align: center; color: #fff;
}
.sidebar-cta p { font-size: 14px; color: #b0c4de; margin-bottom: 15px; line-height: 1.5; }
.sidebar-cta a {
  display: block; background: #2ecc71; color: #fff;
  padding: 11px; border-radius: 10px; text-decoration: none;
  font-weight: 700; font-size: 13px; transition: background .2s;
  margin-bottom: 8px;
}
.sidebar-cta a:hover { background: #27ae60; }
.sidebar-cta .tariff-link {
  display: block; background: transparent; border: 1.5px solid rgba(255,255,255,0.3);
  color: #ccd; padding: 10px; border-radius: 10px;
  text-decoration: none; font-size: 12px; transition: border-color .2s;
}
.sidebar-cta .tariff-link:hover { border-color: #2ecc71; color: #2ecc71; }

/* BLOG LISTING */
.blog-hero {
  background: linear-gradient(135deg, rgba(15,40,70,0.92) 0%, rgba(13,107,90,0.88) 100%);
  padding: 120px 20px 60px; text-align: center; color: #fff;
}
.blog-hero h1 { font-size: 38px; font-weight: 800; margin-bottom: 12px; }
.blog-hero p { color: #b0c4de; font-size: 16px; }

.blog-container { max-width: 1100px; margin: 0 auto; padding: 50px 20px 70px; }

.blog-cats {
  display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 35px;
}
.blog-cats button {
  padding: 8px 20px; border-radius: 25px; border: 2px solid #e8f5e9;
  background: #fff; color: #555; font-size: 13px; font-weight: 600;
  cursor: pointer; transition: all .2s;
}
.blog-cats button:hover, .blog-cats button.active {
  background: #2ecc71; border-color: #2ecc71; color: #fff;
}

.blog-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 25px; }
.blog-post-card {
  background: #fff; border-radius: 18px; padding: 30px;
  border: 2px solid #e8f5e9; box-shadow: 0 4px 20px rgba(0,0,0,0.07);
  display: flex; flex-direction: column;
  transition: all .25s; text-decoration: none; color: inherit;
}
.blog-post-card:hover { border-color: #2ecc71; transform: translateY(-4px); box-shadow: 0 12px 35px rgba(46,204,113,0.12); }
.post-cat {
  font-size: 11px; font-weight: 700; color: #2ecc71;
  text-transform: uppercase; letter-spacing: 1.5px; margin-bottom: 10px;
}
.post-title { font-size: 17px; font-weight: 700; color: #0f2846; line-height: 1.4; margin-bottom: 10px; flex-grow: 1; }
.post-excerpt { font-size: 13px; color: #666; line-height: 1.7; margin-bottom: 18px; }
.post-meta { font-size: 12px; color: #aaa; margin-bottom: 14px; }
.post-read { color: #2ecc71; font-weight: 700; font-size: 14px; }

/* FOOTER */
footer {
  background: #080f1a; color: #555; text-align: center;
  padding: 25px; font-size: 13px;
}
footer span { color: #2ecc71; }
footer p + p { margin-top: 5px; }

/* FLOATING */
.float-btns { position: fixed; bottom: 30px; right: 25px; display: flex; flex-direction: column; gap: 12px; z-index: 999; }
.float-btn {
  width: 50px; height: 50px; border-radius: 50%; display: flex;
  align-items: center; justify-content: center;
  box-shadow: 0 4px 15px rgba(0,0,0,0.3); transition: transform .2s;
  text-decoration: none;
}
.float-btn:hover { transform: scale(1.1); }
.float-wa { background: #25d366; }
.float-tg { background: #229ed9; }

/* MOBILE */
@media (max-width: 768px) {
  nav { padding: 0 15px; }
  nav ul { display: none; position: absolute; top: 65px; left: 0; width: 100%; background: rgba(15,40,70,0.98); flex-direction: column; padding: 20px; gap: 15px; }
  nav ul.open { display: flex; }
  .burger { display: flex; }
  .nav-btn { font-size: 12px; padding: 7px 12px; }

  .article-wrap { grid-template-columns: 1fr; padding: 20px 15px 50px; }
  .article-sidebar { position: static; }
  .article-main h1 { font-size: 24px; }
  .article-content h2 { font-size: 19px; }
  .step { flex-direction: column; gap: 10px; }
  .article-table { font-size: 12px; }
  .article-table th, .article-table td { padding: 8px 10px; }

  .blog-hero { padding: 90px 15px 40px; }
  .blog-hero h1 { font-size: 26px; }
  .blog-container { padding: 30px 15px 50px; }
  .blog-grid { grid-template-columns: 1fr; }
}