:root{
  --bg:#f3f6f9;
  --surface:#ffffff;
  --ink:#16222e;
  --muted:#64748b;
  --line:#e3eaf1;
  --accent:#d99a2a;
  --accent-2:#3aa0ff;
  --accent-ink:#966a12;
  --good:#2f9c63;
  --display:"Fraunces",ui-serif,Georgia,serif;
  --sans:"Inter","Helvetica Neue",system-ui,sans-serif;
  --pad:clamp(18px,4vw,44px);
  --radius:18px;
  --shadow:0 16px 40px rgba(22,34,46,.09);
}
[data-theme="dark"]{
  --bg:#0f141b;
  --surface:#1a2330;
  --ink:#eef2f6;
  --muted:#8fa0b3;
  --line:#2b3646;
  --accent:#e9b45a;
  --accent-2:#5fb2ff;
  --accent-ink:#f2c46f;
  --shadow:0 16px 40px rgba(0,0,0,.45);
}
*{box-sizing:border-box;margin:0}
html{-webkit-text-size-adjust:100%}
body{background:var(--bg);color:var(--ink);font-family:var(--sans);font-weight:400;line-height:1.6;-webkit-font-smoothing:antialiased;overflow-x:hidden}
img{max-width:100%;height:auto}
h1,h2,h3,h4{font-family:var(--display);font-weight:600;line-height:1.05;margin:0 0 .4em;letter-spacing:-.01em}
h1{font-size:clamp(2.2rem,5.6vw,3.6rem)}
h2{font-size:2rem}
p{margin:0 0 1em}
a{color:var(--accent-ink);font-weight:600}
a:hover{text-decoration:none}
.wrap{max-width:1160px;margin:0 auto;padding:0 var(--pad)}
/* Header */
.site-head{position:sticky;top:0;z-index:50;background:var(--bg);border-bottom:1px solid var(--line)}
.head-inner{display:flex;align-items:center;justify-content:space-between;gap:14px;padding-top:13px;padding-bottom:13px}
.brand{display:inline-flex;align-items:center;gap:11px;text-decoration:none;color:var(--ink)}
.brand .logo{width:38px;height:38px;display:block;border-radius:4px}
.brand-name{font-family:var(--display);font-weight:600;font-size:1.55rem;letter-spacing:.01em}
.brand-name em{font-style:normal;color:var(--accent)}
.site-nav ul{display:flex;gap:4px;list-style:none;margin:0;padding:0}
.site-nav a{display:inline-block;padding:9px 15px;border-radius:999px;text-decoration:none;color:var(--ink);font-weight:600;font-size:.93rem}
.site-nav a:hover{background:var(--surface);color:var(--accent-ink)}
.theme-toggle{min-width:44px;min-height:44px;border:1.5px solid var(--line);background:var(--surface);color:var(--ink);border-radius:11px;cursor:pointer;font-size:1.15rem;line-height:1}
/* Hero */
.tool-hero{position:relative;overflow:hidden;border-bottom:1px solid var(--line);background:
  radial-gradient(54% 54% at 95% -8%,rgba(217,154,42,.16),transparent 62%),
  radial-gradient(44% 44% at -6% 26%,rgba(58,160,255,.13),transparent 60%)}
.tool-hero:before{content:"";position:absolute;inset:0;background:radial-gradient(circle at 30px 30px,rgba(22,34,46,.04) 2px,transparent 3px);background-size:60px 60px;-webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.5),transparent 85%);mask-image:linear-gradient(180deg,rgba(0,0,0,.5),transparent 85%);pointer-events:none}
.tool-hero>.wrap{position:relative;padding-top:38px}
.tool-hero .lede{color:var(--muted);font-size:1.05rem;max-width:720px}
.eyebrow{display:inline-block;font-weight:600;font-size:.76rem;letter-spacing:.2em;text-transform:uppercase;color:var(--accent);margin-bottom:.55em}
/* Layout */
.coin-layout{position:relative;display:grid;grid-template-columns:minmax(0,1.35fr) minmax(0,.65fr);gap:20px;align-items:start;padding-top:26px;padding-bottom:46px}
@media(max-width:900px){.coin-layout{grid-template-columns:1fr}}
.panel{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:26px;box-shadow:var(--shadow)}
/* Coin stage */
.stage{display:flex;flex-direction:column;align-items:center;gap:22px}
.coin-wrap{position:relative;width:190px;height:190px;perspective:900px}
@media(max-width:420px){.coin-wrap{width:160px;height:160px}}
.coin{position:absolute;inset:0;transform-style:preserve-3d;transition:transform 1.35s cubic-bezier(.2,.7,.2,1);transform:rotateX(var(--rot,0deg))}
.coin.flipping{cursor:pointer;animation:wobble 1.35s ease-in-out}
.face{position:absolute;inset:0;border-radius:50%;backface-visibility:hidden;-webkit-backface-visibility:hidden;border:2px solid rgba(255,255,255,.5);box-shadow:inset 0 0 0 9px rgba(255,255,255,.22),inset 0 0 0 2px rgba(0,0,0,.12),0 18px 34px rgba(22,34,46,.25)}
.face-heads{background:radial-gradient(circle at 30% 28%,#ffe59a,#e9b857 42%,#c4831f 100%);display:flex;align-items:center;justify-content:center;font-family:var(--display);font-size:3.2rem;font-weight:700;color:#5c3a08;transform:rotateX(0deg)}
.face-tails{background:radial-gradient(circle at 30% 28%,#eef4f9,#c7d6e4 42%,#8ea3b8 100%);transform:rotateX(180deg);display:flex;align-items:center;justify-content:center;font-family:var(--display);font-size:3.2rem;font-weight:700;color:#2a3c4d}
.face-heads:before,.face-tails:before{content:"";position:absolute;inset:14%;border-radius:50%;border:1.6px dashed currentColor;opacity:.55}
@keyframes wobble{0%,100%{transform:rotateX(var(--rot,0deg)) translateZ(0)}25%{transform:rotateX(var(--rot,0deg)) translateZ(26px)}50%{transform:rotateX(var(--rot,0deg)) translateZ(-16px)}75%{transform:rotateX(var(--rot,0deg)) translateZ(14px)}}
.verdict{font-family:var(--display);font-size:1.35rem;font-weight:600;color:var(--accent-ink);min-height:1.6em;text-align:center}
[data-theme="dark"] .verdict{color:var(--accent-ink)}
.flip-actions{display:flex;align-items:center;gap:14px;flex-wrap:wrap;justify-content:center}
.btn{min-height:48px;border:none;border-radius:12px;padding:0 26px;font-family:var(--sans);font-weight:600;font-size:1.02rem;cursor:pointer;transition:.15s}
.btn.primary{background:linear-gradient(135deg,var(--accent),#b97a12);color:#fff;box-shadow:0 8px 20px rgba(217,154,42,.32)}
.btn.primary:hover{transform:translateY(-2px)}
.btn.primary:disabled{opacity:.55;cursor:wait;transform:none}
.count{display:inline-flex;align-items:center;gap:2px;border:1.5px solid var(--line);border-radius:999px;padding:3px;background:var(--surface)}
.count button{min-width:40px;min-height:40px;border:none;background:transparent;color:var(--ink);font-size:1.2rem;font-weight:600;cursor:pointer;border-radius:999px}
.count button:hover{background:rgba(217,154,42,.12)}
.count span{min-width:34px;text-align:center;font-weight:700;font-size:1.05rem}
/* Stats */
.stats h2{font-size:1.4rem;margin-bottom:16px}
.stat{display:grid;grid-template-columns:auto auto 1fr auto auto;gap:10px;align-items:center;padding:10px 0;border-bottom:1px dashed var(--line);font-size:.92rem}
.dot{width:14px;height:14px;border-radius:50%}
.dot.h{background:linear-gradient(135deg,#ffe59a,#d99a2a)}
.dot.t{background:linear-gradient(135deg,#eef4f9,#8ea3b8)}
.stat-name{font-weight:600;min-width:52px}
.bar{background:var(--line);border-radius:99px;height:10px;overflow:hidden}
.bar i{display:block;height:100%;border-radius:inherit;transition:width .4s ease}
.bar i[data-side="h"]{background:linear-gradient(90deg,#e9b857,#d99a2a)}
.bar i[data-side="t"]{background:linear-gradient(90deg,#c7d6e4,#8ea3b8)}
.stat b{min-width:34px;text-align:right;font-family:var(--display);font-size:1.2rem}
.stat em{font-style:normal;color:var(--muted);min-width:38px;text-align:right;font-size:.82rem}
.total-row{display:flex;align-items:center;justify-content:space-between;padding:14px 0 4px;font-weight:600}
.total-row b{font-family:var(--display);font-size:1.3rem;color:var(--accent-ink)}
[data-theme="dark"] .total-row b{color:var(--accent-ink)}
.hist-head{display:flex;align-items:center;justify-content:space-between;margin:10px 0 6px;font-weight:600;font-size:.9rem}
.link-btn{border:none;background:none;color:var(--muted);font-family:var(--sans);font-weight:600;font-size:.82rem;cursor:pointer;text-decoration:underline}
.link-btn:hover{color:var(--danger,#c24b55)}
.history{list-style:none;margin:0;padding:0}
.history li{display:flex;align-items:center;justify-content:space-between;padding:7px 4px;border-bottom:1px dashed var(--line);font-size:.9rem}
.history li:last-child{border-bottom:none}
.history .empty,.history .more{justify-content:center;color:var(--muted);font-size:.85rem}
.chip{padding:3px 12px;border-radius:999px;font-weight:600;font-size:.8rem}
.chip.h{background:rgba(217,154,42,.14);color:var(--accent-ink)}
.chip.t{background:rgba(142,163,184,.20);color:#5b6d80}
[data-theme="dark"] .chip.t{color:#b7c6d6}
.time{color:var(--muted);font-size:.78rem}
.history{max-height:250px;overflow-y:auto}
.history::-webkit-scrollbar{width:8px}
.history::-webkit-scrollbar-thumb{background:var(--line);border-radius:99px}
/* Content / articles */
.page{padding:44px 0 20px}
.page .wrap{max-width:760px}
.page-lede{color:var(--muted)}
.content-section{padding:30px 0 46px}
.content-section .inner{max-width:1160px;margin:0 auto;padding:0 var(--pad)}
.article-list{display:grid;grid-template-columns:repeat(2,1fr);gap:18px;margin-top:26px}
@media(max-width:760px){.article-list{grid-template-columns:1fr}}
.article-card{display:block;background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:22px;text-decoration:none;color:var(--ink);transition:.18s;box-shadow:var(--shadow)}
.article-card:hover{border-color:var(--accent);transform:translateY(-3px)}
.article-card h2{font-size:1.3rem;margin-bottom:.4em}
.article-card p{color:var(--muted);font-size:.94rem;margin:0}
.article-body h2{margin-top:1.5em}
.article-body ul,.article-body ol{padding-left:0;list-style:none;margin:0 0 1em}
.article-body li{margin-bottom:.6em;padding-left:22px;position:relative}
.article-body ul li:before{content:"\2741";position:absolute;left:0;top:0;font-size:.9em;color:var(--accent)}
.article-body ol{counter-reset:li}
.article-body ol li{counter-increment:li}
.article-body ol li:before{content:counter(li) ".";position:absolute;left:0;color:var(--accent);font-family:var(--display);font-weight:600}
.quote{border-left:4px solid var(--accent);background:var(--surface);border-radius:0 12px 12px 0;padding:16px 20px;margin:1.4em 0;color:var(--muted)}
.article-meta{display:flex;gap:12px;color:var(--muted);font-size:.85rem;margin:0 0 1.6em;flex-wrap:wrap;list-style:none}
.article-meta span{background:var(--surface);border:1px solid var(--line);border-radius:999px;padding:5px 12px}
/* Footer */
.site-foot{border-top:1px solid var(--line);background:var(--surface)}
.foot-grid{display:flex;align-items:flex-start;justify-content:space-between;gap:18px;padding-top:34px;padding-bottom:26px;flex-wrap:wrap}
.foot-brand{font-family:var(--display);font-weight:600;font-size:1.25rem;margin:0}
.site-foot nav ul{display:flex;gap:6px;list-style:none;margin:0;padding:0;flex-wrap:wrap}
.site-foot nav a{display:inline-block;padding:7px 11px;border-radius:999px;color:var(--muted);text-decoration:none;font-size:.9rem}
.site-foot nav a:hover{background:var(--bg);color:var(--accent-ink)}
.foot-legal{border-top:1px dashed var(--line);padding:16px var(--pad);color:var(--muted);font-size:.82rem;text-align:center}
/* Cookie banner */
.cookie-banner{position:fixed;left:16px;right:16px;bottom:16px;z-index:100;display:none;align-items:center;gap:14px;justify-content:space-between;flex-wrap:wrap;background:var(--ink);color:#fff;border-radius:14px;padding:14px 18px;box-shadow:var(--shadow);max-width:660px;margin:0 auto}
[data-theme="dark"] .cookie-banner{background:#0a0e14}
.cookie-banner p{margin:0;font-size:.9rem;flex:1;min-width:220px;color:#e3e6ea}
.cookie-banner button{border:none;border-radius:10px;padding:9px 16px;font-family:var(--sans);font-weight:600;font-size:.9rem;cursor:pointer;min-height:40px}
#cookie-accept{background:var(--accent);color:#fff}
/* Responsive menu */
.menu-btn{display:none}
@media(max-width:640px){
  header:has(.menu-btn) .site-nav{position:relative}
  .menu-btn{display:none}
  header:has(.menu-btn) .menu-btn{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:0 16px;border:1.5px solid var(--line);background:var(--surface);border-radius:10px;font-family:var(--sans);font-weight:600;font-size:.9rem;cursor:pointer;color:var(--ink)}
  header:has(.menu-btn) #nav-menu{display:none;position:absolute;right:0;top:calc(100% + 8px);background:var(--surface);border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow);min-width:200px;z-index:60;padding:8px}
  header:has(.menu-btn) #nav-menu.open{display:block}
  header:has(.menu-btn) .site-nav ul{flex-direction:column;gap:0}
  header:has(.menu-btn) .site-nav a{display:block;border-radius:10px}
}
@media(max-width:375px){body{font-size:.95rem}.coin-wrap{width:140px;height:140px}}
@media(prefers-reduced-motion:reduce){*{transition:none!important;animation-duration:.01ms!important;animation-iteration-count:1!important}}