:root{
  --bg: #f6f8fb;
  --card: #ffffff;
  --ink: #0b2a4a;
  --muted: #5b6b7a;
  --brand: #10b9c5;
  --brand2: #0b2a4a;
  --border: #e4ebf3;
  --shadow: 0 10px 30px rgba(11,42,74,0.10);
  --radius: 16px;
}

*{
  box-sizing: border-box;
}

body{
  margin: 0;
  font-family: Verdana, Arial, sans-serif;
  background: var(--bg);
  color: var(--ink);
}

a{
  color: inherit;
  text-decoration: none;
}

.container{
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 18px;
}

/* Header */
.topbar{
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}

.topbar__inner{
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 14px 0;
}

.brand{
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand__logo{
  width: 46px;
  height: 46px;
  object-fit: contain;
}

.brand__name{
  font-size: 20px;
  font-weight: 700;
}

.brand__tagline{
  font-size: 12px;
  color: var(--muted);
}

.nav{
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.nav a{
  padding: 8px 10px;
  border-radius: 999px;
  font-size: 14px;
}

.nav a:hover{
  background: #eaf7f9;
}

/* Hero */
.hero{
  margin-top: 20px;
  background: radial-gradient(1200px 500px at 20% 0%, rgba(16,185,197,0.22), transparent 60%),
              radial-gradient(900px 500px at 90% 10%, rgba(11,42,74,0.14), transparent 55%),
              #ffffff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.hero__inner{
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 20px;
  padding: 24px;
}

.hero__copy h1{
  margin: 0 0 12px 0;
  font-size: 36px;
  line-height: 1.1;
}

.hero__copy p{
  margin: 0 0 16px 0;
  color: var(--muted);
  line-height: 1.6;
  font-size: 16px;
}

.hero__chips{
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.chip{
  display: inline-block;
  padding: 8px 12px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: #fff;
  font-size: 13px;
}

.chip:hover{
  border-color: rgba(16,185,197,0.55);
  background: rgba(16,185,197,0.08);
}

.panel{
  background: #0b2a4a;
  color: #eaf3ff;
  border-radius: var(--radius);
  padding: 18px;
  height: 100%;
}

.panel__title{
  font-weight: 700;
  margin-bottom: 10px;
  font-size: 18px;
}

.panel__text{
  color: rgba(234,243,255,0.9);
  line-height: 1.6;
}

.panel__cta{
  margin-top: 16px;
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

/* Buttons */
.btn{
  display: inline-block;
  padding: 10px 14px;
  border-radius: 12px;
  background: var(--brand);
  color: #062027;
  font-weight: 700;
}

.btn--ghost{
  background: transparent;
  border: 1px solid rgba(234,243,255,0.35);
  color: #eaf3ff;
}

/* Main Layout */
.layout{
  margin: 20px 0 40px;
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 20px;
}

.section{
  margin-top: 18px;
}

.section__head{
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 12px;
}

.section__head h2{
  margin: 0;
  font-size: 20px;
}

.muted{
  color: var(--muted);
  font-size: 13px;
}

/* Feature Card */
.feature{
  border: 1px solid var(--border);
  background: #fff;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.feature__link{
  display: block;
  padding: 20px;
}

.feature__meta{
  display: flex;
  gap: 10px;
  align-items: center;
  margin-bottom: 10px;
}

.feature__title{
  margin: 0 0 12px 0;
  font-size: 24px;
  line-height: 1.2;
}

.feature__text{
  margin: 0 0 12px 0;
  color: var(--muted);
  line-height: 1.6;
}

.feature__more{
  font-weight: 700;
  color: var(--brand2);
}

/* Grid + Cards */
.grid{
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.card{
  border: 1px solid var(--border);
  background: var(--card);
  border-radius: var(--radius);
  box-shadow: 0 6px 18px rgba(11,42,74,0.08);
}

.card__link{
  display: block;
  padding: 16px;
}

.card__meta{
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
  margin-bottom: 10px;
}

.card__title{
  margin: 0 0 8px 0;
  font-size: 17px;
  line-height: 1.3;
}

.card__text{
  margin: 0;
  color: var(--muted);
  line-height: 1.55;
}

.pill{
  display: inline-block;
  padding: 5px 10px;
  border-radius: 999px;
  font-size: 12px;
  background: rgba(16,185,197,0.12);
  border: 1px solid rgba(16,185,197,0.30);
  color: var(--brand2);
}

/* Sidebar */
.sidebox{
  border: 1px solid var(--border);
  background: #fff;
  border-radius: var(--radius);
  padding: 16px;
  box-shadow: 0 6px 18px rgba(11,42,74,0.07);
  margin-bottom: 14px;
}

.sidebox--highlight{
  border-color: rgba(16,185,197,0.45);
  background: rgba(16,185,197,0.08);
}

.sidebox h3{
  margin-top: 0;
  margin-bottom: 10px;
}

.tagcloud{
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.tagchip{
  display: inline-block;
  font-size: 12px;
  padding: 6px 10px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: #fff;
}

.tagchip:hover{
  border-color: rgba(16,185,197,0.55);
  background: rgba(16,185,197,0.08);
}

/* Footer */
.footer{
  border-top: 1px solid var(--border);
  background: #fff;
}

.footer__inner{
  padding: 20px 0;
}

.footer__title{
  font-weight: 700;
  margin-bottom: 6px;
}

.footer__text{
  color: var(--muted);
  line-height: 1.5;
}

/* Responsive */
@media (max-width: 980px){
  .hero__inner{
    grid-template-columns: 1fr;
  }

  .layout{
    grid-template-columns: 1fr;
  }

  .grid{
    grid-template-columns: 1fr;
  }

  .nav{
    display: none;
  }
}

.page-header {
  margin-bottom: 2rem;
}

.page-header h1 {
  margin-bottom: 0.5rem;
}

.page-intro {
  font-size: 1.05rem;
  color: #444;
}

.terms-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1rem;
  margin-top: 2rem;
}

.term-card,
.post-card {
  background: #fff8dc;
  border: 1px solid #e6d27a;
  border-radius: 12px;
  padding: 1rem;
  box-shadow: 0 2px 6px rgba(0,0,0,0.06);
}

.term-card h2,
.post-card h2 {
  margin-top: 0;
  margin-bottom: 0.5rem;
}

.term-card a,
.post-card a {
  text-decoration: none;
  color: #1a1a1a;
}

.term-card a:hover,
.post-card a:hover {
  text-decoration: underline;
}

.meta {
  font-size: 0.9rem;
  color: #666;
  margin-bottom: 0.75rem;
}