:root{
  --bg:#2a3441;
  --brand:#1B8FF2;
  --text:#e9eef5;
  --muted:#a9b8c9;
  --panel: rgba(255,255,255,0.05);
  --panel-border: rgba(255,255,255,0.12);
  --glass: rgba(255,255,255,0.06);
  --highlight:#F11C6B;
  --dark-blue:#134A86;
  --shadow: 0 10px 40px rgba(0,0,0,0.35);
  --ring: 0 0 0 2px rgba(27,143,242,0.25);
  --spacing-xs: 8px;
  --spacing-sm: 16px;
  --spacing-md: 24px;
  --spacing-lg: 32px;
  --spacing-xl: 48px;
  --spacing-2xl: 64px;
}

/* Reset & Base - Mobile First */
*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, Helvetica Neue, Arial;
  color:var(--text);
  background: var(--bg);
  min-height:100vh;
  line-height: 1.6;
}

a{color:var(--brand); text-decoration:none}
a:hover{text-decoration:underline}

/* Container - Mobile First */
.container{
  max-width:100%;
  margin:0 auto;
  padding:var(--spacing-sm);
}

@media (min-width: 768px){
  .container{
    max-width:1200px;
    padding:var(--spacing-md);
  }
}

/* Enhanced Visual Hierarchy */
section + section,
.ad-container + section,
section + .ad-container {
  margin-top: var(--spacing-lg);
}

/* Loading State Improvements */
.ad-container iframe {
  border-radius: 8px;
  max-width: 100%;
  height: auto;
}

/* Simple Section Layout */
.section {
  margin: 0;
  text-align: center;
}

/* Reduce header ad bottom margin */
.section:first-child {
  margin-bottom: var(--spacing-xs);
}

/* Ad Containers - Responsive */
.ad-container{
  display:flex;
  justify-content:center;
  align-items:center;
  width:100%;
  max-width:100%;
  min-height:60px;
  background:transparent;
  border:none;
  border-radius:12px;
  padding:0;
  overflow:hidden;
  position:relative;
  margin:0 auto;
}

/* Header ad specific styling */
.header-ad {
  max-width: 100% !important;
  overflow: hidden !important;
}

.header-ad iframe {
  max-width: 100% !important;
  height: auto !important;
}

.ad-container iframe {
  max-width:100%;
  height:auto;
  border-radius:8px;
  display:block;
  margin:0 auto;
}

@media (min-width: 768px){
  .ad-container{
    min-height:90px;
    border-radius:16px;
    padding:var(--spacing-sm);
  }
}

/* Medium Rectangle Ad Container */
.ad-container.medium-rect {
  max-width: 320px;
  min-height: 270px;
  margin: var(--spacing-lg) auto;
}

@media (min-width: 768px){
  .ad-container.medium-rect {
    min-height: 270px;
  }
}

/* Hero Section - Mobile First */
.hero{
  background: var(--panel);
  border:1px solid var(--panel-border);
  border-radius:16px;
  padding:var(--spacing-md);
  text-align:center;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: var(--shadow);
  width:100%;
}

@media (min-width: 768px){
  .hero{
    padding:var(--spacing-lg);
  }
}

.hero-logo{
  margin-bottom: var(--spacing-md);
  text-align: center;
  display: flex;
  justify-content: center;
  align-items: center;
}

.hero-logo img{
  height: 60px;
  width: auto;
  display: block;
}

@media (min-width: 768px){
  .hero-logo img{
    height: 75px;
  }
}

.hero h1{
  margin:0 0 var(--spacing-sm) 0;
  font-size: clamp(18px, 5vw, 32px);
  font-weight:700;
  letter-spacing:.2px;
  line-height:1.2;
}

.domain-highlight{
  color: var(--brand);
  font-weight: 800;
}

.hero p{
  margin:var(--spacing-sm) 0;
  color:var(--muted);
  font-size:15px;
  line-height:1.5;
}

@media (min-width: 768px){
  .hero p{
    font-size:16px;
  }
}

/* For Sale Banner */
.for-sale-banner{
  background: var(--dark-blue);
  border:1px solid rgba(19,74,134,0.4);
  border-radius:14px;
  padding:var(--spacing-sm) var(--spacing-md);
  text-align:center;
  margin:var(--spacing-md) 0;
  box-shadow: var(--shadow);
}
.for-sale-banner h2{
  margin:0 0 var(--spacing-xs) 0;
  font-size:16px;
  font-weight:700;
  color:var(--text);
}

@media (min-width: 768px){
  .for-sale-banner h2{
    font-size:18px;
  }
}

.for-sale-banner p{
  margin:0;
  color:var(--muted);
  font-size:13px;
  line-height:1.4;
}

@media (min-width: 768px){
  .for-sale-banner p{
    font-size:14px;
  }
}

/* Actions - Vertical Stack on Mobile */
.actions{
  margin-top:var(--spacing-lg);
  display:flex;
  flex-direction:column;
  gap:var(--spacing-sm);
  width:100%;
  align-items:center;
}

@media (min-width: 768px){
  .actions{
    flex-direction:row;
    flex-wrap:wrap;
    gap:var(--spacing-sm);
    justify-content:center;
    align-items:center;
  }
}

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:14px 24px;
  border-radius:8px;
  border:none;
  color:var(--text);
  text-decoration:none;
  font-weight:500;
  font-size:15px;
  line-height:1;
  transition: all 0.2s ease;
  cursor:pointer;
  min-height: 48px;
  width:100%;
  position:relative;
  overflow:hidden;
}

@media (min-width: 768px){
  .btn{
    width:auto;
    font-size:14px;
    min-height: 44px;
    padding:12px 20px;
  }
}

.btn.primary{
  background: var(--brand);
  color:white;
  box-shadow: 0 4px 15px rgba(27,143,242,0.3);
}

.btn.secondary{
  background: rgba(255,255,255,0.1);
  border:1px solid rgba(255,255,255,0.2);
  color:var(--text);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.btn.primary:hover{
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(27,143,242,0.4);
  background: #1B8FF2;
}

.btn.secondary:hover{
  transform: translateY(-1px);
  background: rgba(255,255,255,0.15);
  border-color:rgba(255,255,255,0.3);
}

.btn:active{
  transform: translateY(0);
}

.note{
  margin-top:var(--spacing-sm);
  font-size:12px;
  color:var(--muted);
  line-height:1.4;
}

@media (min-width: 768px){
  .note{
    font-size:13px;
  }
}

/* Premium Sponsorships - Smaller and More Balanced */
.premium-sponsorships{
  display:flex;
  flex-direction:column;
  gap:var(--spacing-md);
  margin:var(--spacing-lg) 0;
  width:100%;
}

@media (min-width: 768px){
  .premium-sponsorships{
    display:grid;
    grid-template-columns: 1fr 1fr;
    gap:var(--spacing-md);
    margin:var(--spacing-xl) 0;
  }
}

.premium-sponsor{
  background: var(--glass);
  border:1px solid rgba(19,74,134,0.3);
  border-radius:12px;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  display:block;
  position:relative;
  overflow:hidden;
  box-shadow:var(--shadow);
  transition: all 0.3s ease;
  text-decoration:none;
  width: 100%;
  aspect-ratio: 2.2/1;
}

.premium-sponsor img{
  width:100%;
  height:100%;
  object-fit:cover;
  border-radius:12px;
  display:block;
}

.premium-sponsor:hover{
  border-color:rgba(19,74,134,0.6);
  background: rgba(255,255,255,0.12);
  transform: translateY(-2px);
  text-decoration:none;
  color:var(--text);
}

.premium-sponsor::after{
  content:"Premium";
  position:absolute;
  top:var(--spacing-xs);
  right:var(--spacing-xs);
  font-size:9px;
  font-weight:600;
  color:white;
  background: var(--highlight);
  border:1px solid var(--highlight);
  padding:3px 6px;
  border-radius:6px;
  box-shadow: 0 2px 8px rgba(241,28,107,0.3);
}

@media (min-width: 768px){
  .premium-sponsor::after{
    font-size:11px;
  }
}

/* Three Column Layout Grid */
.page-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-sm);
  margin: var(--spacing-sm) 0;
}

@media (min-width: 1000px){
  .page-layout {
    grid-template-columns: 300px 1fr 300px;
    grid-template-areas: "left-margin main-content right-margin";
    gap: var(--spacing-md);
    align-items: start;
  }
}

@media (min-width: 768px) and (max-width: 999px){
  .page-layout {
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
  }
}

.main-content {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
  grid-area: main-content;
  margin: 0;
  padding: 0;
}

@media (max-width: 999px) {
  .main-content {
    grid-area: unset;
    width: 100%;
  }
}

.left-margin {
  grid-area: left-margin;
  width: 100%;
  height: fit-content;
  position: sticky;
  top: var(--spacing-md);
}

.right-margin {
  grid-area: right-margin;
  width: 100%;
  height: fit-content;
  position: sticky;
  top: var(--spacing-md);
}

@media (max-width: 999px) {
  .left-margin, .right-margin {
    display: none !important;
  }

  .page-layout {
    display: block;
    margin: 0;
    padding: 0;
  }
}

/* Margin containers */
.left-margin, .right-margin {
  min-height: 600px;
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  align-items: center;
  padding: var(--spacing-sm);
}

/* Placeholder ads */
.placeholder-ad {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  width: 100%;
  min-height: 300px;
  background: rgba(128,128,128,0.1);
  border: 1px solid #888;
  border-radius: 12px;
  margin-bottom: 20px;
  font-size: 16px;
  font-weight: 500;
  color: var(--muted);
  text-align: center;
  gap: 10px;
}

/* Purchase ad space link */
.purchase-ad-link {
  color: #999;
  text-decoration: underline;
  font-size: 12px;
  font-weight: 400;
  transition: all 0.2s ease;
}

.purchase-ad-link:hover {
  color: #666;
  text-decoration: underline;
}

/* Banner Ads - Responsive Height */
.banner-ads{
  display:flex;
  flex-direction:column;
  gap:var(--spacing-md);
  margin:var(--spacing-lg) 0;
  width: 100%;
}

.banner-ad{
  display:flex;
  align-items:center;
  justify-content:center;
  width: 100%;
  min-height: 300px;
  border-radius:12px;
  padding:var(--spacing-sm);
  overflow:hidden;
  position:relative;
  margin-bottom: 20px;
}

.banner-ad iframe,
.banner-ad > div {
  max-width:100%;
  height:auto;
  border-radius:8px;
  margin:0 auto;
}

@media (min-width: 768px){
  .banner-ad{
    min-height: 200px;
    border-radius:16px;
    padding:var(--spacing-sm);
  }
}

.banner-ad > div{
  display:flex;
  align-items:center;
  justify-content:center;
  width:100%;
  height:100%;
  color:var(--muted);
  font-size:12px;
  text-align:center;
}

@media (min-width: 768px){
  .banner-ad > div{
    font-size:13px;
  }
}

/* Focus styles */
.btn:focus-visible, a:focus-visible{
  outline:none;
  box-shadow: var(--shadow), var(--ring);
}

/* No script fallback */
noscript{
  display:block;
  text-align:center;
  color:#ffe3e3;
  background:#3b0d0d;
  padding:10px;
  border-radius:10px;
  border:1px solid rgba(255,255,255,0.25);
  margin-top:8px;
}