:root {
  --site-bg: #f4f8ff;
  --site-ink: #122035;
  --site-soft: #526987;
  --site-line: rgba(104, 138, 181, 0.24);
  --site-green: #4cc9a7;
  --site-blue: #5b8dff;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  min-height: 100vh;
  font-family: 'Inter', sans-serif;
  color: var(--site-ink);
  background:
    radial-gradient(900px 480px at 8% 0%, #d8ecff 0%, transparent 58%),
    radial-gradient(860px 500px at 94% 4%, #d6f7ed 0%, transparent 60%),
    linear-gradient(180deg, #f8fbff 0%, #eff5ff 100%);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
  padding: 14px clamp(14px, 3.5vw, 48px);
  border-bottom: 1px solid var(--site-line);
  background: rgba(248, 251, 255, .9);
  backdrop-filter: blur(12px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: #13253d;
  font-weight: 800;
  text-decoration: none;
}

.brand-mark {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--site-green), var(--site-blue));
  box-shadow: 0 0 14px rgba(91, 141, 255, .35);
}

.site-nav {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 18px;
}

.site-nav-link {
  color: #405878;
  font-size: .9rem;
  font-weight: 700;
  text-decoration: none;
}

.site-nav-link:hover,
.site-nav-link.active {
  color: #2458bd;
}

.header-cta {
  padding: 10px 14px;
  border-radius: 999px;
  color: #081628;
  background: linear-gradient(140deg, #88ffe6, #7db7ff);
  font-size: .78rem;
  font-weight: 800;
  letter-spacing: .05em;
  text-decoration: none;
}

.site-page {
  min-height: 70vh;
}

.site-hero {
  padding: clamp(54px, 8vw, 100px) 20px clamp(42px, 6vw, 76px);
  text-align: center;
}

.site-hero-inner {
  width: min(100%, 860px);
  margin: 0 auto;
}

.site-kicker {
  margin: 0 0 12px;
  color: #5877a4;
  font-size: .78rem;
  font-weight: 800;
  letter-spacing: .14em;
}

.site-hero h1 {
  margin: 0;
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-size: clamp(2.2rem, 7vw, 4.6rem);
  line-height: 1.02;
  letter-spacing: -.035em;
}

.site-hero p {
  max-width: 650px;
  margin: 18px auto 0;
  color: var(--site-soft);
  font-size: clamp(1rem, 2vw, 1.18rem);
  line-height: 1.65;
}

.blog-area,
.article-area {
  padding: 0 20px 72px;
}

.article-area {
  padding-top: clamp(36px, 5vw, 68px);
}

.blog-container {
  width: min(100%, 1180px);
  margin: 0 auto;
}

.blog-search {
  width: min(100%, 620px);
  margin: 0 auto 32px;
}

.blog-search label {
  display: block;
  margin-bottom: 8px;
  color: #395473;
  font-size: .88rem;
  font-weight: 700;
}

.blog-search input {
  width: 100%;
  padding: 14px 16px;
  border: 1px solid rgba(104, 138, 181, .3);
  border-radius: 14px;
  background: rgba(255, 255, 255, .9);
  box-shadow: 0 12px 30px rgba(31, 68, 115, .08);
  color: var(--site-ink);
  font: inherit;
}

.articles-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.article-card {
  display: flex;
  min-height: 280px;
  flex-direction: column;
  padding: 24px;
  border: 1px solid var(--site-line);
  border-radius: 18px;
  background: rgba(255, 255, 255, .82);
  box-shadow: 0 14px 34px rgba(31, 68, 115, .09);
}

.article-card-badge {
  align-self: flex-start;
  margin-bottom: 18px;
  padding: 5px 9px;
  border-radius: 999px;
  color: #1a705d;
  background: rgba(76, 201, 167, .14);
  font-size: .72rem;
  font-weight: 800;
}

.article-card h2,
.article-card h3 {
  margin: 0;
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-size: 1.2rem;
  line-height: 1.35;
}

.article-card p {
  margin: 14px 0 20px;
  color: var(--site-soft);
  line-height: 1.65;
}

.article-card a {
  margin-top: auto;
  color: #315ebd;
  font-weight: 800;
  text-decoration: none;
}

.article-card[hidden] { display: none; }

.empty-search {
  display: none;
  padding: 36px;
  text-align: center;
  color: var(--site-soft);
}

.article-wrap {
  width: min(100%, 860px);
  margin: 0 auto;
}

.breadcrumbs {
  display: flex;
  gap: 8px;
  align-items: center;
  flex-wrap: wrap;
  margin-bottom: 18px;
  color: #7184a0;
  font-size: .88rem;
}

.breadcrumbs a {
  color: #315ebd;
  text-decoration: none;
}

.article-paper {
  padding: clamp(24px, 5vw, 54px);
  border: 1px solid var(--site-line);
  border-radius: 20px;
  background: rgba(255, 255, 255, .9);
  box-shadow: 0 18px 44px rgba(31, 68, 115, .1);
}

.article-paper h1 {
  margin: 0;
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-size: clamp(2rem, 5vw, 3.3rem);
  line-height: 1.12;
  letter-spacing: -.025em;
}

.article-meta-row {
  margin: 16px 0 30px;
  color: #70839f;
  font-size: .9rem;
}

.article-text {
  color: #273b56;
  font-size: 1.06rem;
  line-height: 1.8;
}

.article-text h2,
.article-text h3,
.article-text h4 {
  margin: 1.8em 0 .6em;
  color: #162b47;
  font-family: 'Plus Jakarta Sans', sans-serif;
  line-height: 1.3;
}

.article-text a { color: #315ebd; }
.article-text img { max-width: 100%; height: auto; }

.content-disclaimer {
  margin-top: 34px;
  padding: 16px 18px;
  border-left: 4px solid #77b8ff;
  border-radius: 8px;
  background: #f1f7ff;
  color: #526987;
  font-size: .9rem;
  line-height: 1.55;
}

.article-actions {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  margin-top: 30px;
  flex-wrap: wrap;
}

.site-button {
  display: inline-flex;
  padding: 11px 16px;
  border-radius: 999px;
  color: #fff;
  background: linear-gradient(130deg, #2f72f3, #31ba98);
  font-weight: 800;
  text-decoration: none;
}

.landing-footer {
  margin-top: 0;
  border-top: 1px solid var(--site-line);
  background: rgba(255, 255, 255, .82);
}

.landing-footer-content {
  display: grid;
  grid-template-columns: 1.1fr 2fr 1fr 1fr;
  gap: 28px;
  padding: 34px clamp(14px, 3.5vw, 48px);
}

.landing-footer-section h4 {
  margin: 0 0 10px;
  color: #1b2f4b;
  font-family: 'Plus Jakarta Sans', sans-serif;
}

.landing-footer-section p {
  margin: 0;
  color: #5c7497;
  line-height: 1.6;
}

.landing-footer-section a {
  display: block;
  margin-bottom: 7px;
  color: #3b5db3;
  text-decoration: none;
}

.popular-city-links {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  column-gap: 18px;
}

.landing-footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 13px clamp(14px, 3.5vw, 48px) 18px;
  border-top: 1px solid rgba(104, 138, 181, .2);
  flex-wrap: wrap;
}

.landing-footer-bottom p {
  margin: 0;
  color: #6a82a5;
  font-size: .9rem;
}

.adgenius-credit {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: #4969b4;
  font-size: .9rem;
  font-weight: 700;
  text-decoration: none;
}

.adgenius-credit img {
  display: block;
  width: 94px;
  height: auto;
}

.not-found {
  width: min(100%, 700px);
  margin: 0 auto;
  padding: 100px 20px;
  text-align: center;
}

@media (max-width: 900px) {
  .articles-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .landing-footer-content { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 640px) {
  .site-header { padding: 10px 12px; gap: 10px; }
  .site-nav { gap: 10px; }
  .site-nav-link { display: none; }
  .header-cta { padding: 8px 11px; font-size: .7rem; }
  .site-hero { padding: 46px 14px 34px; }
  .blog-area, .article-area { padding: 0 12px 50px; }
  .articles-grid { grid-template-columns: 1fr; }
  .article-card { min-height: 0; }
  .landing-footer-content { grid-template-columns: 1fr; }
  .popular-city-links { grid-template-columns: 1fr 1fr; }
  .article-actions { flex-direction: column; }
  .site-button { justify-content: center; }
}