/* SmartMove Solutions: Chess move */
:root{
  --red:#a00b32;
  --red-b:#d4143f;
  --red-d:#7a0826;
  --navy:#101c3d;
  --navy-2:#1b2a55;
  --paper:#faf7f4;
  --line:#e6dfd8;
  --ink:#121a33;
  --ink-2:#4a5068;
  --on-dark:rgba(246,247,252,.93);
  --on-dark-2:rgba(232,236,248,.8);
  --head:"Kanit",system-ui,sans-serif;
  --body:"PT Serif",Georgia,serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--body);font-size:17.5px;line-height:1.7;overflow-x:hidden}
img{display:block;max-width:100%}
a{color:inherit}
h1,h2,h3{font-family:var(--head);font-weight:600;line-height:1.08;margin:0 0 .5em;letter-spacing:-.005em}
h2{font-size:clamp(2rem,3.8vw,3.1rem)}
h3{font-size:1.4rem;font-weight:600}
p{margin:0 0 1em}
.wrap{width:min(1180px,100% - 40px);margin-inline:auto}
section{scroll-margin-top:84px}

/* header */
.site-header{position:sticky;top:0;z-index:50;background:rgba(250,247,244,.92);backdrop-filter:blur(10px);border-bottom:1px solid transparent;transition:border-color .3s,box-shadow .3s}
.site-header.scrolled{border-color:var(--line);box-shadow:0 6px 24px rgba(16,28,61,.08)}
.head-row{display:flex;align-items:center;justify-content:space-between;height:76px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;font-family:var(--head);font-size:1.25rem;font-weight:500;color:var(--navy)}
.brand img{width:44px;height:44px;border-radius:8px;border:1px solid var(--line)}
.brand b{font-weight:700;color:var(--red)}
.primary-nav{display:flex;align-items:center;gap:4px}
.primary-nav a{font-family:var(--head);font-weight:500;text-decoration:none;color:var(--navy);padding:8px 14px;border-radius:6px;transition:background .2s,color .2s}
.primary-nav .nav-cta{background:var(--navy);color:#fff;margin-left:6px}
.nav-toggle{display:none;width:46px;height:46px;border:1px solid var(--line);background:#fff;border-radius:8px;cursor:pointer;position:relative}
.nav-toggle span{position:absolute;left:12px;right:12px;height:2px;background:var(--navy);transition:transform .3s}
.nav-toggle span:first-child{top:18px}.nav-toggle span:last-child{top:26px}
.nav-toggle[aria-expanded="true"] span:first-child{transform:translateY(4px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:last-child{transform:translateY(-4px) rotate(-45deg)}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;font-family:var(--head);font-weight:600;font-size:1.02rem;text-decoration:none;padding:14px 26px;border-radius:6px;border:2px solid transparent;transition:transform .25s,box-shadow .25s,background .25s,color .25s}
.btn-red{background:var(--red);color:#fff}
.btn-line{border-color:var(--navy);color:var(--navy)}
.label{font-family:var(--head);font-weight:600;font-size:.88rem;letter-spacing:.16em;text-transform:uppercase;color:var(--red);margin-bottom:12px}

/* hero */
.hero{padding:70px 0 90px;position:relative;overflow:hidden}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:60px;align-items:center}
.notation{display:inline-flex;align-items:center;gap:12px;font-family:var(--head);font-weight:500;color:var(--ink-2);font-size:.95rem}
.notation span{background:var(--navy);color:#fff;padding:4px 12px;border-radius:4px;letter-spacing:.06em;text-transform:uppercase;font-size:.8rem}
.hero h1{font-size:clamp(2.7rem,5.6vw,4.7rem);font-weight:700;color:var(--navy);margin:22px 0}
.hero .red{color:var(--red)}
.lede{font-size:1.18rem;color:var(--ink-2);max-width:32em}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.board-wrap{width:100%;max-width:470px;justify-self:center}
.board{position:relative;display:grid;grid-template-columns:repeat(6,1fr);grid-template-rows:repeat(6,1fr);aspect-ratio:1;border:10px solid var(--navy);border-radius:10px;box-shadow:0 30px 60px rgba(16,28,61,.22);overflow:hidden;background:#fff}
.board i{display:block;background:#fff}
.board i:nth-child(12n+2),.board i:nth-child(12n+4),.board i:nth-child(12n+6),.board i:nth-child(12n+7),.board i:nth-child(12n+9),.board i:nth-child(12n+11){background:var(--navy-2)}
.piece,.target,.trail{position:absolute;left:0;top:0;width:16.6667%;height:16.6667%}
.piece{display:grid;place-items:center;animation:knight 8s cubic-bezier(.7,0,.3,1) infinite;z-index:2}
.piece svg{width:74%;height:74%;background:var(--red);border-radius:50%;padding:12%;box-shadow:0 8px 18px rgba(160,11,50,.45)}
.target{animation:tgt 8s cubic-bezier(.7,0,.3,1) infinite}
.target::before{content:"";position:absolute;inset:14%;border:3px dashed var(--red-b);border-radius:50%;animation:pulse 1.6s ease-in-out infinite}
.trail{animation:trail 8s cubic-bezier(.7,0,.3,1) infinite}
.trail::before{content:"";position:absolute;inset:36%;border-radius:50%;background:rgba(212,20,63,.55)}
@keyframes knight{
  0%,18%{transform:translate(100%,400%)}
  25%,43%{transform:translate(200%,200%)}
  50%,68%{transform:translate(400%,100%)}
  75%,93%{transform:translate(300%,300%)}
  100%{transform:translate(100%,400%)}
}
@keyframes tgt{
  0%,18%{transform:translate(200%,200%)}
  25%,43%{transform:translate(400%,100%)}
  50%,68%{transform:translate(300%,300%)}
  75%,93%{transform:translate(100%,400%)}
  100%{transform:translate(200%,200%)}
}
@keyframes trail{
  0%,18%{transform:translate(300%,300%)}
  25%,43%{transform:translate(100%,400%)}
  50%,68%{transform:translate(200%,200%)}
  75%,93%{transform:translate(400%,100%)}
  100%{transform:translate(300%,300%)}
}
@keyframes pulse{50%{transform:scale(.82);opacity:.6}}
.board-labels{display:grid;grid-template-columns:repeat(6,1fr);padding:8px 10px 0;font-family:var(--head);color:var(--ink-2);text-align:center;font-size:.9rem}

/* opening */
.opening{padding:100px 0;background:#fff;border-block:1px solid var(--line)}
.opening-grid{display:grid;grid-template-columns:220px 1fr;gap:40px}
.opening h2{color:var(--navy)}
.opening .big{font-size:clamp(1.3rem,2.2vw,1.65rem);line-height:1.5;color:var(--navy);font-style:italic}
.opening p:not(.big):not(.label){color:var(--ink-2);max-width:42em}

/* moves */
.moves{padding:110px 0}
.sec-head{max-width:700px;margin-bottom:46px}
.sec-head h2{color:var(--navy)}
.sec-head p:not(.label){color:var(--ink-2)}
.move-grid{display:grid;grid-template-columns:repeat(2,1fr);border:3px solid var(--navy);border-radius:8px;overflow:hidden}
.move{padding:46px 44px;min-height:260px;position:relative;transition:transform .3s,box-shadow .3s,background .3s}
.move p{margin:0;max-width:30em}
.m-light{background:#fff}
.m-light h3{color:var(--navy)}
.m-light p{color:var(--ink-2)}
.m-dark{background:var(--navy);color:var(--on-dark)}
.m-dark h3{color:#fff}
.mv{display:inline-block;font-family:var(--head);font-weight:600;letter-spacing:.12em;text-transform:uppercase;font-size:.82rem;color:var(--red);margin-bottom:20px}
.m-dark .mv{color:#ff8fa8}
.move h3{font-size:2.1rem;margin-bottom:12px}

/* toolkit */
.toolkit{padding:0 0 110px}
.tool-rows{display:grid;gap:0;border-top:2px solid var(--navy)}
.tool{display:grid;grid-template-columns:72px 1fr;gap:28px;align-items:start;padding:30px 10px;border-bottom:1px solid var(--line);transition:background .3s,padding .3s}
.sq{display:grid;place-items:center;width:64px;height:64px;background:var(--red);color:#fff;font-family:var(--head);font-weight:600;font-size:1.2rem;border-radius:6px;transition:transform .35s}
.tool h3{color:var(--navy);margin-bottom:6px}
.tool p{margin:0;color:var(--ink-2);max-width:44em}

/* quote */
.quote-band{background:var(--red);padding:100px 0;position:relative;overflow:hidden}
.quote-band::before{content:"";position:absolute;right:-60px;top:-60px;width:320px;height:320px;background:conic-gradient(rgba(255,255,255,.08) 25%,transparent 0 50%,rgba(255,255,255,.08) 0 75%,transparent 0);background-size:80px 80px;opacity:.9}
.quote-band blockquote{margin:0;max-width:880px;position:relative}
.quote-band p{font-family:var(--body);font-style:italic;font-size:clamp(1.7rem,3.6vw,2.8rem);line-height:1.3;color:#fff}
.quote-band cite{font-style:normal;font-family:var(--head);letter-spacing:.14em;text-transform:uppercase;font-size:.88rem;color:var(--on-dark)}

/* faq (dark) */
.faq{padding:110px 0;background:var(--navy);color:var(--on-dark)}
.faq-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:56px;align-items:start}
.faq .sec-head h2{color:#fff}
.faq .sec-head p:not(.label){color:var(--on-dark-2)}
.faq .label{color:#ff8fa8}
.faq-list{border-top:1px solid rgba(255,255,255,.18)}
.faq-item{border-bottom:1px solid rgba(255,255,255,.18);transition:background .25s}
.faq-q{width:100%;background:none;border:0;cursor:pointer;color:#fff;text-align:left;font:500 1.15rem/1.4 var(--head);padding:22px 12px;display:flex;justify-content:space-between;gap:18px;align-items:center;transition:padding .25s,color .25s}
.pm{flex:none;width:28px;height:28px;border:2px solid rgba(255,255,255,.6);border-radius:4px;position:relative;transition:transform .3s,background .3s,border-color .3s}
.pm::before,.pm::after{content:"";position:absolute;left:6px;right:6px;top:11px;height:2px;background:#fff}
.pm::after{transform:rotate(90deg);transition:transform .3s}
.faq-item.open .pm{background:var(--red);border-color:var(--red);transform:rotate(45deg)}
.faq-a{display:grid;grid-template-rows:0fr;transition:grid-template-rows .35s}
.faq-a>p{overflow:hidden;margin:0;padding:0 12px;color:var(--on-dark)}
.faq-item.open .faq-a{grid-template-rows:1fr}
.faq-item.open .faq-a>p{padding-bottom:22px}

/* contact */
.contact{padding:110px 0}
.contact-box{display:grid;grid-template-columns:260px 1fr;gap:56px;align-items:center;background:#fff;border:1px solid var(--line);border-radius:10px;padding:56px;box-shadow:0 20px 50px rgba(16,28,61,.08)}
.checker{aspect-ratio:1;background:conic-gradient(var(--navy) 25%,#fff 0 50%,var(--navy) 0 75%,#fff 0);background-size:25% 25%;border:6px solid var(--navy);border-radius:6px;position:relative}
.checker::after{content:"";position:absolute;width:25%;height:25%;left:50%;top:25%;background:var(--red);border-radius:50%;transform:scale(.7);box-shadow:0 0 0 6px rgba(160,11,50,.25);animation:pulse 2s ease-in-out infinite}
.contact h2{color:var(--navy)}
.contact-copy p:not(.label){color:var(--ink-2)}
.contact-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:22px}

/* footer */
.site-footer{background:var(--navy);color:var(--on-dark-2);padding:34px 0;border-top:4px solid var(--red)}
.foot-row{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:14px}
.foot-row p{margin:0;font-size:.95rem}
.site-footer .brand{color:#fff}
.site-footer .brand b{color:#ff8fa8}
.site-footer .brand img{width:36px;height:36px;border:0}

/* reveal */
.js .reveal{opacity:0;transform:translateY(24px);transition:opacity .7s ease,transform .7s ease}
.js .reveal.in{opacity:1;transform:none}

@media (hover:hover) and (pointer:fine){
  .primary-nav a:hover{background:#f0e9e3;color:var(--red)}
  .primary-nav .nav-cta:hover{background:var(--red);color:#fff}
  .btn:hover{transform:translateY(-3px);box-shadow:0 12px 26px rgba(16,28,61,.2)}
  .btn-red:hover{background:var(--red-d)}
  .btn-line:hover{background:var(--navy);color:#fff}
  .move:hover{transform:scale(1.025);z-index:1;box-shadow:0 20px 44px rgba(16,28,61,.28)}
  .m-light:hover{background:#fff5f7}
  .tool:hover{background:#fff;padding-left:22px}
  .tool:hover .sq{transform:translate(6px,-6px) rotate(-6deg)}
  .faq-item:hover{background:rgba(255,255,255,.05)}
  .faq-item:hover .faq-q{padding-left:20px}
  .faq-item:hover .pm{border-color:#fff}
}

@media (max-width:960px){
  .hero-grid{grid-template-columns:1fr;gap:46px}
  .board-wrap{max-width:380px}
  .opening-grid,.faq-grid{grid-template-columns:1fr;gap:20px}
  .faq-grid{gap:30px}
  .contact-box{grid-template-columns:1fr;gap:34px}
  .checker{max-width:180px}
}
@media (max-width:820px){
  .nav-toggle{display:block}
  .primary-nav{display:none;position:absolute;top:76px;left:12px;right:12px;flex-direction:column;align-items:stretch;background:#fff;border:1px solid var(--line);border-radius:10px;padding:10px;box-shadow:0 20px 40px rgba(16,28,61,.15)}
  .primary-nav.open{display:flex}
  .primary-nav a{padding:13px 14px}
  .primary-nav .nav-cta{margin:6px 0 0;text-align:center}
}
@media (max-width:640px){
  body{font-size:16.5px}
  .wrap{width:min(1180px,100% - 32px)}
  .brand{font-size:1.08rem}
  .hero{padding:44px 0 70px}
  .hero h1{font-size:2.6rem}
  .lede{font-size:1.06rem}
  .hero-actions .btn{flex:1 1 100%}
  .board{border-width:7px}
  .opening,.moves,.faq,.contact{padding:76px 0}
  .toolkit{padding-bottom:76px}
  .move-grid{grid-template-columns:1fr}
  .move{padding:32px 24px;min-height:0}
  .move:nth-child(3){background:#fff}
  .move:nth-child(3) h3{color:var(--navy)}
  .move:nth-child(3) p{color:var(--ink-2)}
  .move:nth-child(3) .mv{color:var(--red)}
  .move:nth-child(4){background:var(--navy)}
  .move:nth-child(4) h3{color:#fff}
  .move:nth-child(4) p{color:var(--on-dark)}
  .move:nth-child(4) .mv{color:#ff8fa8}
  .move h3{font-size:1.8rem}
  .tool{grid-template-columns:52px 1fr;gap:18px;padding:24px 0}
  .sq{width:52px;height:52px}
  .faq-q{font-size:1.06rem;padding:20px 4px}
  .faq-a>p{padding:0 4px}
  .contact-box{padding:34px 22px}
  .contact-actions .btn{width:100%;font-size:.94rem;padding:14px 12px}
  .foot-row{flex-direction:column;align-items:flex-start}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition:none!important;scroll-behavior:auto!important}
  .piece{transform:translate(200%,200%)}
  .target{transform:translate(400%,100%)}
  .trail{display:none}
  .js .reveal{opacity:1;transform:none}
}