:root{
  --font-primary:Inter,"Helvetica Neue",Helvetica,Arial,sans-serif;
  --text-primary:#545454; --text-secondary:#82b440; --text-tertiary:#fff;
  --surface-base:#000; --surface-muted:#82b440; --surface-paper:#f4f4ef;
  --surface-white:#fff; --surface-dark:#111; --surface-soft:#ecece7;
  --max:1240px;
  --gutter:clamp(18px,4vw,48px);
  --section-y:clamp(72px,9vw,120px);
  --radius-xs:5px; --shadow-1:rgb(111,154,55) 0 2px 0 0;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;overflow-x:hidden}
body{margin:0;font-family:var(--font-primary);font-size:16px;line-height:1.5;font-weight:400;color:var(--text-primary);background:var(--surface-paper);overflow-x:hidden;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
img{max-width:100%;height:auto} a{color:inherit;text-decoration:none} button,a{font:inherit} button{cursor:pointer} :focus-visible{outline:3px solid var(--text-secondary);outline-offset:4px}
.skip-link{position:fixed;left:20px;top:-60px;z-index:1000;padding:10px 16px;background:#fff;color:#000;border-radius:4px}.skip-link:focus{top:15px}
.shell{width:min(var(--max),calc(100% - (var(--gutter) * 2)));margin-inline:auto}
.site-header{position:fixed;top:0;left:0;right:0;z-index:100;background:rgba(244,244,239,.94);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-bottom:1px solid #d9d9d2}
.nav{min-height:64px;display:flex;align-items:center;gap:clamp(16px,2.5vw,32px)}
.brand{display:inline-flex;align-items:center;flex:0 0 auto;gap:10px;font-size:15px;letter-spacing:.11em;white-space:nowrap}.brand-logo{display:block;width:46px;height:46px;object-fit:cover;border-radius:10px}.brand b{font-weight:800}
nav{display:flex;align-items:center;gap:clamp(18px,2.1vw,28px);margin-left:auto}nav a{font-size:13px;font-weight:650;letter-spacing:.035em;white-space:nowrap}nav a:hover,nav a[aria-current=page]{color:var(--text-secondary)}.nav-privacy{color:var(--text-secondary)}
.nav-cta,.button{display:inline-flex;align-items:center;justify-content:center;gap:14px;padding:11px 17px;border-radius:var(--radius-xs);font-size:13px;font-weight:700;letter-spacing:.02em;transition:transform .18s ease,background .18s ease}.nav-cta{background:#000;color:#fff;flex:0 0 auto}.nav-cta:hover,.button:hover{transform:translateY(-2px)}
.menu-toggle{display:none;border:0;background:transparent;width:42px;height:42px;padding:9px;border-radius:6px;margin-left:auto;align-items:center;justify-content:center;flex-direction:column;gap:5px}.menu-toggle span{display:block;width:22px;height:2px;background:#111;transition:transform .18s ease,opacity .18s ease}
.hero{background:#f4f4ef;border-bottom:1px solid #d7d7cf}.hero-grid{min-height:calc(100svh - 64px);display:grid;grid-template-columns:minmax(0,1fr) minmax(360px,.92fr);align-items:center;gap:clamp(30px,4vw,58px);padding:clamp(28px,4vw,46px) 0 clamp(30px,4vw,46px)}
.eyebrow,.section-kicker{font-size:11px;line-height:16px;font-weight:800;letter-spacing:.14em;margin:0 0 16px;color:#6c6c66}.hero h1,.privacy-title h1{font-size:clamp(52px,6.5vw,88px);line-height:.91;letter-spacing:-.055em;color:#111;margin:0 0 clamp(18px,2vw,26px);font-weight:800;max-width:760px}h1 em,h2 em{font-style:normal;color:var(--surface-muted)}
.hero-lead{max-width:620px;font-size:clamp(16px,1.3vw,17px);line-height:1.6;margin:0 0 24px}.hero-actions{display:flex;align-items:center;gap:24px;flex-wrap:wrap}.button-primary{background:#000;color:#fff;box-shadow:var(--shadow-1)}.text-link{font-size:14px;font-weight:700;border-bottom:1px solid #777;padding-bottom:3px}.text-link:hover{color:var(--text-secondary)}.hero-note{margin-top:28px;font-size:12px;color:#777;display:flex;align-items:flex-start;gap:10px;max-width:600px}.dot{width:7px;height:7px;min-width:7px;border-radius:50%;background:var(--surface-muted);margin-top:6px}
.board-wrap{width:min(500px,100%);justify-self:end}.board-topline,.board-caption{display:flex;justify-content:space-between;gap:12px;font-size:10px;letter-spacing:.12em;font-weight:800;color:#777;margin-bottom:10px}.chessboard,.puzzle-board{display:grid;grid-template-columns:repeat(8,1fr);aspect-ratio:1;border:8px solid #111;background:#111;box-shadow:20px 22px 0 rgba(0,0,0,.08)}.sq{display:grid;place-items:center;font-family:Georgia,serif;font-size:clamp(25px,4vw,52px);line-height:1;user-select:none}.light{background:#e7e4d8;color:#151515}.dark{background:#789d46;color:#f8f8f5}.board-caption{margin-top:12px;margin-bottom:0}
.intro-rule{padding:var(--section-y) 0;background:#fff}.intro-grid{display:grid;grid-template-columns:minmax(170px,.7fr) minmax(0,1.3fr);gap:clamp(45px,8vw,100px)}h2{font-size:clamp(40px,5vw,66px);line-height:.98;letter-spacing:-.045em;color:#111;margin:0 0 24px}.intro-grid h2{max-width:780px}.intro-grid p:not(.section-kicker){max-width:650px;font-size:clamp(16px,1.45vw,18px);line-height:1.7}
.feature-section{padding:var(--section-y) 0}.section-head{display:grid;grid-template-columns:minmax(0,1fr) minmax(280px,.7fr);gap:clamp(40px,7vw,90px);align-items:end;margin-bottom:clamp(40px,5vw,55px)}.section-head>p{font-size:16px;line-height:1.65;margin:0 0 5px;max-width:520px}.feature-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:2px;background:#d7d7d0}.feature-card{min-height:430px;padding:clamp(28px,3vw,38px);background:#fff;position:relative;display:flex;flex-direction:column}.feature-dark{background:#101010;color:#fff}.card-number{font-size:11px;font-weight:800;letter-spacing:.1em;color:#888}.feature-icon{font-size:52px;line-height:1;margin:clamp(52px,6vw,70px) 0 28px}.feature-card h3{font-size:27px;letter-spacing:-.03em;margin:0 0 12px;color:inherit}.feature-card p{font-size:14px;line-height:1.65;max-width:310px;margin:0}.feature-card a{margin-top:auto;padding-top:24px;font-size:12px;font-weight:800;letter-spacing:.05em}.feature-card a:hover{color:var(--text-secondary)}
.academy{background:#101010;color:#fff;padding:var(--section-y) 0}.academy-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:clamp(50px,8vw,110px);align-items:center}.academy-art{padding:clamp(14px,2vw,25px);background:#191919}.mini-board{display:grid;grid-template-columns:repeat(8,1fr);aspect-ratio:1;border:6px solid #000}.mini-board span{display:grid;place-items:center;font-family:Georgia,serif;font-size:clamp(20px,3vw,40px)}.mini-board span:nth-child(odd){background:#e7e4d8;color:#151515}.mini-board span:nth-child(even){background:#789d46;color:#f8f8f5}.academy .section-kicker{color:#aaa}.academy h2{color:#fff}.academy-copy>p:not(.section-kicker){max-width:570px;font-size:17px;line-height:1.65;color:#c7c7c7}.lesson-list{margin-top:42px;border-top:1px solid #383838}.lesson-list>div{display:grid;grid-template-columns:45px minmax(105px,130px) 1fr;gap:15px;padding:20px 0;border-bottom:1px solid #383838;align-items:start}.lesson-list span{color:#82b440;font-size:11px;font-weight:800}.lesson-list strong{font-size:14px;color:#fff}.lesson-list small{font-size:13px;line-height:20px;color:#aaa}
.puzzles{padding:var(--section-y) 0;background:#82b440}.puzzle-top{display:flex;justify-content:space-between;align-items:flex-end;gap:30px;margin-bottom:clamp(40px,5vw,55px)}.puzzle-top h2{margin-bottom:0}.puzzle-meta{display:flex;flex-direction:column;text-align:right;font-size:10px;letter-spacing:.12em;line-height:20px}.puzzle-meta strong{font-size:11px}.puzzle-card{background:#fff;display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);max-width:1050px;margin:auto}.puzzle-board{border:0;box-shadow:none}.puzzle-copy{padding:clamp(35px,5vw,65px);display:flex;flex-direction:column;justify-content:center}.puzzle-copy h3{font-size:clamp(28px,3vw,35px);line-height:1.05;letter-spacing:-.04em;color:#111;margin:0 0 15px}.puzzle-copy>p:not(.eyebrow):not(.solution){font-size:16px;line-height:1.7;margin:0 0 28px;max-width:390px}.button-dark{background:#000;color:#fff;border:0;align-self:flex-start}.solution{margin:20px 0 0!important;font-size:13px;line-height:21px!important;color:#333}
.journal{padding:var(--section-y) 0;background:#fff}.compact{margin-bottom:clamp(40px,5vw,55px)}.journal-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));border-top:1px solid #cfcfc8}.journal article{padding:30px 30px 30px 0;border-right:1px solid #cfcfc8;min-height:280px;display:flex;flex-direction:column}.journal article+article{padding-left:30px}.journal article:last-child{border-right:0}.journal article span{font-size:10px;letter-spacing:.12em;font-weight:800;color:#777}.journal h3{font-size:25px;line-height:1.05;letter-spacing:-.03em;color:#111;margin:28px 0 12px}.journal p{font-size:14px;line-height:1.65;margin:0;max-width:330px}.journal a{margin-top:auto;padding-top:24px;font-size:12px;font-weight:800}
.closing{padding:var(--section-y) 0;background:#111;color:#fff;text-align:center}.closing .section-kicker{color:#aaa}.closing h2{color:#fff;font-size:clamp(52px,8vw,100px);margin-bottom:15px}.closing p:not(.section-kicker){color:#bbb;margin-bottom:32px}.footer{background:#000;color:#aaa;padding:25px 0}.footer-grid{display:grid;grid-template-columns:1fr 1fr 1fr;align-items:center;gap:20px}.footer .brand{color:#fff}.footer p{font-size:11px;text-align:center;margin:0}.footer>a:last-child{text-align:right;font-size:12px;color:#fff}
.privacy-hero{background:#101010;color:#fff;padding:clamp(68px,8vw,90px) 0 clamp(65px,7vw,85px)}.privacy-title h1{color:#fff;margin-bottom:25px}.privacy-title>p:last-child{color:#aaa;font-size:13px}.privacy-content{background:#fff;padding:var(--section-y) 0 clamp(80px,10vw,120px)}.privacy-layout{display:grid;grid-template-columns:minmax(190px,280px) minmax(0,700px);gap:clamp(45px,7vw,90px);max-width:1070px}.privacy-layout aside{align-self:start;position:sticky;top:90px;border-top:2px solid #111;padding-top:17px;display:flex;flex-direction:column;gap:6px}.privacy-layout aside span{font-size:10px;font-weight:800;color:#82b440}.privacy-layout aside strong{font-size:15px;color:#111}.privacy-layout aside small{font-size:11px;color:#777}.privacy-layout article{max-width:700px}.privacy-layout article .lead{font-size:clamp(18px,2vw,20px);line-height:1.55;color:#111;margin-top:28px}.privacy-layout article .privacy-meta{font-size:13px;color:#777;margin:6px 0 34px}.privacy-layout ul{margin:14px 0 0;padding-left:24px;color:#4e4e4e}.privacy-layout li{font-size:15px;line-height:1.8;padding-left:4px}.privacy-layout h2{font-size:29px;line-height:1.1;margin:48px 0 14px}.privacy-layout article>h2:first-child{margin-top:0}.privacy-layout p{font-size:15px;line-height:1.8;margin:0;color:#4e4e4e}
@media (max-width:1100px){
  .hero-grid{grid-template-columns:minmax(0,1fr) minmax(320px,.82fr);gap:36px}.nav{gap:18px}nav{gap:17px}.nav-cta{padding-inline:14px}.feature-card{min-height:400px}.lesson-list>div{grid-template-columns:40px 105px 1fr}
}
@media (max-width:900px){
  .nav{min-height:60px}.menu-toggle{display:none}.nav nav{display:none}.nav-cta{margin-left:auto}.hero-grid{grid-template-columns:1fr;min-height:auto;padding:92px 0 56px}.hero-copy{max-width:780px}.board-wrap{justify-self:start;max-width:680px;width:100%}.intro-grid,.academy-grid{grid-template-columns:1fr;gap:48px}.intro-grid .section-kicker{margin-bottom:0}.academy-grid{gap:55px}.academy-art{max-width:680px}.section-head{grid-template-columns:1fr;gap:20px}.section-head>p{max-width:650px}.feature-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.feature-card{min-height:360px}.feature-card:last-child{grid-column:1/-1}.puzzle-card{grid-template-columns:1fr}.puzzle-board{max-width:700px;width:100%;margin:auto}.puzzle-copy{padding:clamp(35px,6vw,55px)}.journal-grid{grid-template-columns:1fr}.journal article,.journal article+article{padding:28px 0;border-right:0;border-bottom:1px solid #cfcfc8;min-height:0}.journal article:last-child{border-bottom:0}.journal p{max-width:650px}.privacy-layout{grid-template-columns:1fr;gap:45px}.privacy-layout aside{position:static}.privacy-layout article{max-width:760px}.footer-grid{grid-template-columns:1fr;text-align:center}.footer-grid .brand{justify-content:center}.footer p,.footer>a:last-child{text-align:center}
}
@media (max-width:640px){
  :root{--gutter:18px;--section-y:clamp(62px,15vw,78px)}
  .site-header .nav{display:flex;align-items:center}.site-header .nav nav{display:none}.site-header .nav-cta{margin-left:auto}

  .brand-logo{width:42px;height:42px}.nav-cta{padding:10px 12px;font-size:11px}.menu-toggle{width:40px;height:40px}.hero h1,.privacy-title h1{font-size:clamp(48px,13vw,64px);letter-spacing:-.06em}.hero-lead{font-size:15px;line-height:1.6}.hero-actions{align-items:stretch;flex-direction:column;gap:14px}.hero-actions .button,.hero-actions .text-link{align-self:flex-start}.hero-note{margin-top:30px}.chessboard,.puzzle-board{border-width:5px;box-shadow:12px 14px 0 rgba(0,0,0,.08)}.sq{font-size:clamp(23px,8vw,42px)}.board-topline,.board-caption{font-size:9px}.intro-grid{gap:30px}h2{font-size:clamp(37px,11vw,50px)}.feature-grid{grid-template-columns:1fr}.feature-card,.feature-card:last-child{grid-column:auto;min-height:0;min-height:320px}.feature-icon{margin:48px 0 25px}.lesson-list>div{grid-template-columns:36px 1fr;gap:8px 12px;padding:17px 0}.lesson-list small{grid-column:2}.puzzle-top{align-items:flex-start;flex-direction:column;gap:20px}.puzzle-meta{text-align:left}.puzzle-copy{padding:30px 24px}.puzzle-copy h3{font-size:30px}.journal h3{font-size:23px}.closing h2{font-size:clamp(48px,14vw,70px)}.privacy-hero{padding:62px 0}.privacy-content{padding-top:58px}.privacy-layout{gap:34px}.privacy-layout article .privacy-meta{margin-top:6px;margin-bottom:28px}.privacy-layout h2{font-size:25px;margin-top:40px}.privacy-layout article .lead{font-size:18px}.privacy-layout p,.privacy-layout li{font-size:15px;line-height:1.75}.privacy-layout ul{padding-left:20px}
}
@media (max-width:390px){
  .shell{width:calc(100% - 28px)}.site-header .nav{gap:8px}.brand-logo{width:38px;height:38px}.nav-cta{font-size:10px;padding:9px 10px}.nav-cta span{display:none}.menu-toggle{width:36px}.hero-grid{padding-top:82px}.hero h1,.privacy-title h1{font-size:50px}.eyebrow,.section-kicker{font-size:10px;letter-spacing:.12em}.hero-lead{font-size:15px}.button{width:auto}.feature-card{padding:25px}.academy-copy>p:not(.section-kicker){font-size:16px}.puzzle-copy{padding:27px 20px}.footer{padding:22px 0}.footer p{font-size:10px}
}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}.nav-cta,.button,.menu-toggle span{transition:none}}

/* KINGDOM CHESS wordmark */
.brand{display:inline-flex;align-items:center;gap:12px;white-space:nowrap;text-decoration:none;}
.brand-name{font-size:clamp(17px,1.7vw,24px);font-weight:800;letter-spacing:-.035em;line-height:1;color:#111;}
.brand-name span{color:#82b440;}
@media (max-width:640px){
  .brand{gap:9px;}
  .brand-logo{width:42px;height:42px;}
  .brand-name{font-size:16px;letter-spacing:-.03em;}
}
@media (max-width:390px){
  .brand{gap:7px;}
  .brand-logo{width:38px;height:38px;}
  .brand-name{font-size:14px;}
}