:root{
  --bg:#f7f8fb;
  --card:#fff;
  --text:#0f172a;
  --muted:#475569;
  --line:#e5e7eb;
  --primary:#0ea5e9;
  --primary-ink:#075985;
  --success:#16a34a;
  --danger:#dc2626;
  --radius:14px;
  --btn-radius:6px;
}

.sr-only{position:absolute!important;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}

/* Reset & base */
*{ box-sizing:border-box; }
html,body{ height:100%; }
body{
  margin:0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial;
  color:var(--text);
  background:var(--bg);
  -webkit-text-size-adjust:100%;
}
img,svg,video,canvas{ max-width:100%; height:auto; }

/* Container */
.container{ width:100%; max-width:1760px; margin:0 auto; padding:20px; }

/* Header */
.site-header-bar{ position:sticky; top:0; z-index:20; background:#ffffffcc; backdrop-filter:saturate(160%) blur(6px); border-bottom:1px solid var(--line); }
.header-inner{ display:flex; align-items:center; justify-content:space-between; gap:12px; padding:12px 0; }
.brand{ display:flex; align-items:center; gap:12px; text-decoration:none; }
.logo{ display:inline-flex; width:40px; height:40px; border-radius:10px; overflow:hidden; }
.titles{ display:flex; flex-direction:column; line-height:1.1; }
.site-title{ font-weight:800; font-size:22px; color:var(--text); letter-spacing:-0.01em; }
.tagline{ margin:2px 0 0; color:var(--muted); font-size:13px; }

/* Top navigation */
.topnav{ display:flex; gap:8px; overflow:auto; scrollbar-width:none; }
.topnav::-webkit-scrollbar{ display:none; }
.topnav a{
  flex:0 0 auto;
  color:var(--muted); text-decoration:none;
  padding:10px 14px; border-radius:var(--btn-radius); font-weight:600;
  transition:background .15s ease, color .15s ease;
}
.topnav a.active, .topnav a:hover{ background:#eaf6ff; color:#0369a1; }

/* Layout 3 columns */
.layout{
  display:grid;
  grid-template-columns: 320px minmax(0, 1fr) 320px;
  gap:22px; align-items:start;
}

/* Sidebars / Ads */
.side{ display:flex; flex-direction:column; gap:20px; }
.ad-box, .ad-fill{
  width:100%; min-height:250px; background:#f5f7fb; border:1px dashed #cbd5e1; border-radius:12px;
  display:flex; align-items:center; justify-content:center; color:#64748b; font-weight:600; text-align:center;
}
.ad-banner{ width:100%; margin:8px 0 18px; }
.ad-banner .ad-fill{ min-height:120px; font-weight:700; }
.sticky{ position:sticky; top:16px; }
.ad-mobile{ display:none; }
.ad-mobile .ad-fill{ min-height:100px; margin-bottom:16px; font-weight:700; }

/* Cards & UI */
.card{ background:var(--card); border:1px solid var(--line); border-radius:var(--radius); padding:18px; }
.card + .card{ margin-top:20px; }
h2{ margin:0 0 10px; letter-spacing:-0.01em; }
.hint{ color:var(--muted); margin:6px 0 14px; }

/* Form grid */
.grid{ display:grid; gap:12px; grid-template-columns: repeat(3, minmax(0, 1fr)); }
label{ font-weight:600; font-size:14px; color:#334155; display:flex; flex-direction:column; gap:6px; }
input, select{
  width:100%; padding:12px; border-radius:var(--btn-radius);
  border:1px solid var(--line); background:#fff; font-size:16px;
  transition: box-shadow .12s ease, border-color .12s ease;
}
input:focus, select:focus{ outline:none; border-color:#bae6fd; box-shadow:0 0 0 3px #e0f2fe; }

/* Buttons */
.btn-primary{
  margin-top:10px; background:var(--primary); color:#fff; border:0;
  border-radius:var(--btn-radius); padding:12px 16px; font-weight:700; cursor:pointer;
  transition: background .12s ease, transform .04s ease;
 height:40px;}
.btn-primary:hover{ background:#0284c7; }
.btn-primary:active{ transform: translateY(1px); }

.btnrow{ display:flex; flex-wrap:wrap; gap:12px; }
.btn{
  display:inline-block; background:var(--primary); color:#fff; text-decoration:none;
  padding:10px 14px; border-radius:var(--btn-radius); font-weight:700;
  transition: background .12s ease, transform .04s ease;
}
.btn:hover{ background:#0284c7; }
.btn:active{ transform: translateY(1px); }

/* Result box */
.result{ margin-top:14px; padding:14px; border-radius:12px; background:#f1f5f9; border:1px solid #e2e8f0; }
.hidden{ display:none; }
.pnl{ font-weight:700; }
.pnl.positive{ color:var(--success); }
.pnl.negative{ color:#dc2626; }

/* Tabs */
.tabs{ display:flex; gap:10px; margin:16px 0; flex-wrap:wrap; overflow:auto; scrollbar-width:none; }
.tabs::-webkit-scrollbar{ display:none; }
.tab{
  background:#eef2f7; border:1px solid var(--line); color:#0f172a;
  border-radius:var(--btn-radius); padding:10px 14px; cursor:pointer; font-weight:700;
  transition: background .12s ease, color .12s ease, border-color .12s ease;
  flex:0 0 auto;
}
.tab:hover{ background:#eaf1ff; }
.tab.active{ background:#0ea5e9; color:#fff; border-color:#0ea5e9; }

.panel{ display:none; }
.panel.active{ display:block; }

/* In-article ads (between paragraphs) */
.in-article{
  display:flex;
  align-items:center;
  justify-content:center;
  width:100%;
  max-width:100%;
  min-height:250px;
  margin:16px 0;
  border-radius:12px;
  border:1px dashed #cbd5e1;
  background:#f5f7fb;
  color:#64748b;
  font-weight:700;
  text-align:center;
}
.in-article ins.adsbygoogle{
  display:block !important;
  width:100% !important;
  height:auto !important;
}
.in-article[data-size="300x250"]{
  max-width:336px;
  margin-left:auto;
  margin-right:auto;
}
.in-article[data-size="320x100"]{
  max-width:320px;
  min-height:100px;
}

/* Table & chart helpers */
.table { width:100%; border-collapse: collapse; }
.table th, .table td { padding:8px 10px; border-bottom:1px solid #e5e7eb; text-align:left; }
.positive { color:#0a7f2e; }
.negative { color:#b91c1c; }
.chart-toolbar select { padding:8px 10px; border:1px solid #e5e7eb; border-radius:var(--btn-radius); }

/* Chart container class (used by JS) */
.chart-box{ position:relative; width:100%; height:320px; }
@media (max-width:1024px){ .chart-box{ height:260px; } }
@media (max-width:640px){ .chart-box{ height:200px; } }

/* Footer */
.site-footer{ color:var(--muted); }
.site-footer a{ color:#0ea5e9; text-decoration:none; }
.site-footer a:hover{ text-decoration:underline; }

/* ===== Desktop (1280–1536) ===== */
@media (max-width:1536px){
  .container{ max-width:1420px; padding:12px; }
  .layout{ grid-template-columns: 280px minmax(0, 1fr) 280px; gap:14px; }
  .side .ad-box{ min-width:280px; }
}

/* ===== Tablet / Narrow laptop (<1200) ===== */
@media (max-width:1200px){
  .layout{ grid-template-columns: 1fr; }
  .side{ display:none; }
  .container{ max-width:1000px; }
  .ad-mobile{ display:block; }
  .sticky{ position:static; }
}

/* ===== Tablet portrait / large phones ===== */
@media (max-width:1024px){
  .grid{ grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

/* ===== Phones ===== */
@media (max-width:768px){
  .container{ padding:14px; }
  .site-title{ font-size:20px; }
  .logo{ width:36px; height:36px; }
  .ad-banner .ad-fill{ min-height:100px; }
  .tabs{ gap:8px; }
}

/* ===== Small phones ===== */
@media (max-width:640px){
  .grid{ grid-template-columns: 1fr; }
  .tab{ padding:9px 12px; }
  input, select{ font-size:16px; } /* avoid iOS zoom */
  .in-article{ min-height:180px; }
}

/* ===== Accessibility: unified focus ===== */
.btn-primary,
.btn,
.tab,
.topnav a,
#affiliate-wall .cta{
  transition: background .12s ease, color .12s ease, border-color .12s ease, transform .04s ease;
  cursor: pointer;
}
.btn-primary:focus,
.btn:focus,
.tab:focus,
.topnav a:focus,
#affiliate-wall .cta:focus{
  outline: none;
  box-shadow: 0 0 0 3px #e0f2fe;
  border-color: #bae6fd;
}

.quick-links{display:flex;flex-wrap:wrap;gap:8px;margin:10px 0}
.quick-links .chip{
  background:#eef2f7;border:1px solid var(--line);color:#0f172a;
  border-radius:999px;padding:6px 10px;font-weight:700;text-decoration:none
}
.quick-links .chip:hover{background:#eaf1ff;border-color:#cfe8ff}


/* CoinGecko widget container harmonization */
.cg-widgets { padding: 8px 0; }
.cg-widgets coingecko-coin-price-marquee-widget { display:block; margin: 8px 0; }
.cg-widgets coingecko-trending-searches-widget { display:block; margin: 8px 0; }


/* Crypto nav icon */
.nav-icon{display:inline-flex;align-items:center;justify-content:center;margin-right:4px}
.nav-icon svg{width:20px;height:20px}


/* === Pro polish additions === */
:root{
  --bg:#f7f8fb;
  --surface:#ffffff;
  --ink:#0f172a;
  --muted:#475569;
  --brand:#0ea5e9;
  --brand-ink:#075985;
  --ring:#cfe9ff;
  --radius-xl:20px;
  --shadow: 0 10px 25px rgba(2, 6, 23, 0.08);
}

body{background:var(--bg); color:var(--ink); font-synthesis-weight:none; text-rendering:optimizeLegibility;}

.container{max-width:1100px; margin:0 auto; padding:28px 22px;}

.site-header-bar{position:sticky; top:0; z-index:30; backdrop-filter:saturate(140%) blur(10px); background:rgba(255,255,255,.85); border-bottom:1px solid #e6ebf2;}
.header-inner{display:flex; align-items:center; justify-content:space-between;}
.topnav a{padding:10px 14px; border-radius:10px; font-weight:600; color:#334155; text-decoration:none;}
.topnav a:hover{background:#eaf6ff; color:#0369a1;}
.topnav a.active{background:#eaf6ff; color:#0369a1; box-shadow:inset 0 0 0 1px #cde9ff;}

.hero{background:linear-gradient(180deg, #ffffff, #f4faff); border:1px solid #e8eef7; border-radius:var(--radius-xl); padding:36px; box-shadow:var(--shadow);}
.hero h1{font-size:42px; line-height:1.15; margin:0 0 10px; letter-spacing:-0.02em;}
.hero p{color:var(--muted); font-size:18px; max-width:68ch;}

.grid-tiles{display:grid; grid-template-columns:repeat(auto-fit, minmax(240px,1fr)); gap:18px; margin-top:22px;}
.tile{display:block; border-radius:16px; background:var(--surface); border:1px solid #e6ebf2; padding:18px; text-decoration:none; color:inherit; transition:transform .12s ease, box-shadow .12s ease, border-color .12s ease;}
.tile:hover{transform:translateY(-2px); box-shadow:var(--shadow); border-color:#d7e6ff;}
.tile h3{font-size:20px; margin:6px 0 8px;}
.tile p{color:var(--muted); font-size:14px;}

.tile .icon{ width:36px; height:36px; border-radius:10px; display:grid; place-items:center; background:transparent; margin-bottom:10px; }

.site-footer{padding-top:24px; color:#64748b;}
.site-footer a{color:#0ea5e9; text-decoration:none;}
.site-footer a:hover{text-decoration:underline;}


/* === Premium polish: hero, CTA, tiles, subtle gradient === */
:root{
  --radius-xl: 20px;
  --shadow-lg: 0 14px 40px rgba(2,6,23,.08);
  --accent:#0ea5e9;
  --accent-ink:#075985;
}
body::before{
  content:"";
  position:fixed; inset:-20% -10% auto -10%;
  height:380px; pointer-events:none; z-index:-1;
  background: radial-gradient(60% 60% at 30% 10%, rgba(14,165,233,.10), transparent 60%),
              radial-gradient(40% 40% at 80% -10%, rgba(59,130,246,.08), transparent 60%);
  filter:saturate(120%);
}
.hero{
  background:linear-gradient(180deg,#ffffff, #f7fbff);
  border:1px solid #e6eef7; border-radius:var(--radius-xl);
  padding:38px 34px; box-shadow:var(--shadow-lg);
}
.hero h1{
  font-size:44px; line-height:1.12; letter-spacing:-0.02em; margin:0 0 8px;
  position:relative;
}
.hero h1 .underline{
  position:relative; display:inline-block;
}
.hero h1 .underline::after{
  content:""; position:absolute; left:0; right:0; bottom:-6px; height:6px;
  background:linear-gradient(90deg, rgba(14,165,233,.18), rgba(14,165,233,.06));
  border-radius:6px;
}
.hero .lead{color:#475569; font-size:18px; max-width:70ch;}

.cta-row{margin-top:16px; display:flex; gap:12px; align-items:center; flex-wrap:wrap;}
.btn{
  display:inline-flex; align-items:center; gap:10px;
  background:linear-gradient(180deg,#10b5ea,#0ea5e9); color:#fff;
  border:none; border-radius:10px; padding:11px 16px; font-weight:700;
  text-decoration:none; box-shadow:0 6px 20px rgba(14,165,233,.35);
  transition:transform .12s ease, box-shadow .12s ease;
}
.btn:hover{ transform:translateY(-1px); box-shadow:0 10px 28px rgba(14,165,233,.45); }
.btn.secondary{
  background:#eef6ff; color:#0369a1; box-shadow:none; border:1px solid #d7e6ff;
}

.grid-tiles{ display:grid; grid-template-columns:repeat(auto-fit,minmax(260px,1fr)); gap:18px; margin-top:22px; }
.tile{ background:#fff; border:1px solid #e6ebf2; border-radius:16px; padding:20px;
       transition:transform .12s ease, box-shadow .12s ease, border-color .12s ease; text-decoration:none; color:inherit; }
.tile:hover{ transform:translateY(-2px); border-color:#cfe0ff; box-shadow:var(--shadow-lg); }
.tile h3{ font-size:20px; margin:6px 0 8px; }
.tile p{ color:#475569; font-size:14px; }
.tile .svgicon{ width:28px; height:28px; margin-bottom:8px; color:#0369a1 }


/* === Premium polish (v1) === */
:root{
  --brand:#0ea5e9;
  --brand-ink:#075985;
  --ink:#0f172a;
  --muted:#475569;
  --surface:#ffffff;
  --ring:#d5e9ff;
  --radius-xl:20px;
  --shadow:0 12px 28px rgba(2,6,23,.08);
}
body{
  background:
    radial-gradient(1200px 400px at 50% -200px, #eaf6ff 0%, rgba(234,246,255,0) 60%),
    var(--bg, #f7f8fb);
  color:var(--ink);
}
.site-header-bar{backdrop-filter:saturate(140%) blur(10px); background:rgba(255,255,255,.85);}

.container{max-width:1100px; margin:0 auto; padding:28px 22px;}

.hero{
  background:linear-gradient(180deg,#ffffff,#f5faff);
  border:1px solid #e6ebf2;
  border-radius:var(--radius-xl);
  padding:40px 32px 30px;
  box-shadow:var(--shadow);
}
.hero h1{
  font-size:44px; line-height:1.12; letter-spacing:-.02em; margin:0 0 16px;
  position:relative;
}
.hero .sub{
  color:var(--muted); font-size:18px; max-width:72ch; margin-bottom:18px;
}
.hero .cta-bar{ display:flex; gap:12px; align-items:center; margin:10px 0 6px; }
.btn-primary{
  display:inline-flex; align-items:center; gap:8px;
  background:linear-gradient(180deg, #38bdf8, #0ea5e9);
  color:white; text-decoration:none; font-weight:700;
  border-radius:10px; padding:10px 14px; box-shadow:0 5px 14px rgba(14,165,233,.35);
  border:1px solid #0ea5e9;
 height:40px;}
.btn-primary:hover{ filter:brightness(1.05); transform:translateY(-1px); }
.btn-link{ color:#0369a1; text-decoration:none; font-weight:600;  display:inline-flex; align-items:center; height:40px;}
.btn-link:hover{ text-decoration:underline; }

.grid-tiles{ display:grid; grid-template-columns:repeat(auto-fit, minmax(240px,1fr)); gap:18px; margin-top:18px; }
.tile{
  display:block; background:var(--surface); border:1px solid #e6ebf2;
  border-radius:16px; padding:18px; text-decoration:none; color:inherit;
  transition:transform .12s ease, box-shadow .12s ease, border-color .12s ease;
}
.tile:hover{ transform:translateY(-2px); box-shadow:var(--shadow); border-color:#d7e6ff; }
.tile h3{ font-size:20px; margin:6px 0 8px; }
.tile p{ color:var(--muted); font-size:14px; }
.tile .icon{ width:36px; height:36px; border-radius:10px; display:grid; place-items:center; background:transparent; margin-bottom:10px; }

.site-footer{ padding-top:26px; color:#64748b; }
.site-footer a{ color:#0ea5e9; text-decoration:none; }
.site-footer a:hover{ text-decoration:underline; }

/* tiles layout responsive */
.grid-tiles{ display:grid; gap:18px; grid-template-columns:1fr; }
@media (min-width: 640px){ .grid-tiles{ grid-template-columns:repeat(2, minmax(0,1fr)); } }
@media (min-width: 1024px){ .grid-tiles{ grid-template-columns:repeat(4, minmax(0,1fr)); } }