/* ============ Mahjong Card Guide · shared styles ============ */
:root{
  --ink:#1F2A26; --ink2:#33473F; --paper:#FAF6EE; --card:#FFFDF7;
  --red:#B23A2E; --gold:#C99A3F; --line:#E5DCC8; --muted:#6E7770;
  --green:#3E6B4F;
}
*{box-sizing:border-box;margin:0;padding:0;}
html{scroll-behavior:smooth;}
body{background:var(--paper);color:var(--ink);font-family:"Segoe UI",system-ui,-apple-system,"Helvetica Neue",Arial,sans-serif;line-height:1.7;font-size:16px;}
.wrap{max-width:960px;margin:0 auto;padding:0 20px;}

/* ---------- header ---------- */
.site-head{border-bottom:1px solid var(--line);background:var(--card);}
.head-inner{max-width:960px;margin:0 auto;padding:14px 20px;display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--ink);}
.brand svg{flex:none;}
.brand .bt{font-family:Georgia,"Times New Roman",serif;font-size:20px;font-weight:700;letter-spacing:.3px;}
.brand .bs{display:block;font-family:"Segoe UI",sans-serif;font-size:11px;color:var(--muted);letter-spacing:1.5px;text-transform:uppercase;}
nav.main{display:flex;gap:4px;flex-wrap:wrap;}
nav.main a{padding:6px 12px;font-size:14px;color:var(--ink2);text-decoration:none;border-radius:8px;}
nav.main a:hover{background:var(--paper);color:var(--red);}
nav.main a.on{background:var(--ink);color:#F2E6C8;}

/* ---------- hero ---------- */
.hero{background:linear-gradient(140deg,#1F2A26 0%,#2E4A3E 70%,#3E6B4F 100%);color:#F6EFDE;padding:56px 20px 48px;}
.hero .wrap{max-width:960px;}
.kicker{font-size:12.5px;letter-spacing:2.5px;text-transform:uppercase;color:var(--gold);margin-bottom:14px;display:flex;align-items:center;gap:10px;}
.kicker::before{content:"";width:26px;height:2px;background:var(--gold);}
.hero h1{font-family:Georgia,serif;font-size:clamp(30px,5vw,46px);line-height:1.15;font-weight:700;max-width:820px;}
.hero .lede{font-size:clamp(15px,2vw,18px);opacity:.93;max-width:720px;margin-top:16px;}
.hero .meta{margin-top:22px;display:flex;gap:12px;flex-wrap:wrap;}
.hero .pill{background:rgba(242,230,200,.12);border:1px solid rgba(242,230,200,.35);color:#F2E6C8;padding:7px 14px;border-radius:30px;font-size:13px;}
.hero .cta{margin-top:26px;display:flex;gap:12px;flex-wrap:wrap;}
.btn{display:inline-block;padding:11px 22px;border-radius:10px;font-size:15px;font-weight:600;text-decoration:none;transition:.15s;}
.btn.primary{background:var(--gold);color:#1F2A26;}
.btn.primary:hover{background:#E0B155;}
.btn.ghost{border:1px solid rgba(242,230,200,.5);color:#F2E6C8;}
.btn.ghost:hover{background:rgba(242,230,200,.12);}

/* ---------- sections ---------- */
section{padding:44px 0;border-bottom:1px solid var(--line);}
section.alt{background:#F5EFE2;}
h2{font-family:Georgia,serif;font-size:26px;margin-bottom:8px;letter-spacing:.2px;}
h3{font-family:Georgia,serif;font-size:19px;margin:22px 0 8px;}
.sec-sub{color:var(--muted);font-size:15px;margin-bottom:22px;max-width:760px;}
.grid{display:grid;gap:14px;}
.g2{grid-template-columns:1fr 1fr;}
.g3{grid-template-columns:repeat(3,1fr);}
.card{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:20px;}
.card h4{font-family:Georgia,serif;font-size:17px;margin-bottom:6px;}
.card p{font-size:14.5px;color:var(--ink2);}
.card .ic{width:44px;height:44px;border-radius:10px;background:var(--paper);display:flex;align-items:center;justify-content:center;margin-bottom:10px;border:1px solid var(--line);}

/* ---------- prose ---------- */
.prose p,.prose li{font-size:15.5px;color:var(--ink2);}
.prose p{margin:12px 0;}
.prose ul,.prose ol{margin:10px 0 14px 24px;}
.prose li{margin:6px 0;}
.prose strong{color:var(--ink);}
.prose .note{background:#FDF6E7;border:1px solid #EAD9AE;border-left:4px solid var(--gold);border-radius:8px;padding:12px 16px;font-size:14px;margin:16px 0;color:var(--ink2);}
.prose .warn{background:#FBEDE8;border:1px solid #EBC9BC;border-left:4px solid var(--red);border-radius:8px;padding:12px 16px;font-size:14px;margin:16px 0;color:var(--ink2);}
.prose a{color:var(--green);text-decoration:underline;text-underline-offset:3px;}
.prose a:hover{color:var(--red);}

/* ---------- tables ---------- */
.tbl{width:100%;border-collapse:collapse;background:var(--card);border:1px solid var(--line);border-radius:10px;overflow:hidden;font-size:14.5px;margin:14px 0;}
.tbl th{background:var(--ink);color:#F2E6C8;text-align:left;padding:9px 12px;font-weight:600;}
.tbl td{padding:8px 12px;border-top:1px solid var(--line);vertical-align:top;}
.tbl tr:nth-child(even) td{background:#FBF7EC;}

/* ---------- footer ---------- */
footer{background:var(--ink);color:#CFD8D2;padding:30px 0;font-size:13.5px;}
footer .wrap{display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;}
footer a{color:var(--gold);}
footer .disclaim{margin-top:14px;font-size:12.5px;color:#9AA8A1;max-width:760px;}

/* ---------- tool page ---------- */
.tool{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:24px;margin:18px 0;}
.tool label{display:block;font-size:13.5px;font-weight:600;color:var(--ink2);margin:14px 0 6px;}
.tool select,.tool input[type=range]{width:100%;padding:9px 12px;border:1px solid var(--line);border-radius:8px;font-size:15px;background:#fff;color:var(--ink);}
.tool .row2{display:grid;grid-template-columns:1fr 1fr;gap:14px;}
.out{margin-top:18px;padding:18px;border-radius:12px;background:var(--paper);border:1px solid var(--line);min-height:96px;}
.out .big{font-family:Georgia,serif;font-size:26px;font-weight:700;}
.out .why{margin-top:6px;font-size:14px;color:var(--ink2);}
.tag-o{display:inline-block;padding:2px 10px;border-radius:20px;font-size:12.5px;font-weight:700;margin-right:6px;}
.t-ok{background:#E2EFE6;color:var(--green);}
.t-no{background:#FBDFD5;color:var(--red);}
.t-wa{background:#FDF2D7;color:#8A6A1E;}
.val{color:var(--red);font-weight:700;}

@media(max-width:720px){
  .g2,.g3{grid-template-columns:1fr;}
  .tool .row2{grid-template-columns:1fr;}
  .hero{padding:40px 16px 36px;}
}