/* =========================================================
   The 10k Club — shared stylesheet
   ========================================================= */

:root{
  --blue:#2438f5;--blue-deep:#131f8a;
  --blue-gradient:linear-gradient(180deg,#131f8a 0%,#2f45ff 100%);
  --ink:#101014;--ink-soft:#3c3d42;
  --paper:#d6d7d9;--paper-light:#e3e4e6;--paper-dark:#c2c3c7;
  --grid-line:rgba(255,255,255,.55);
  --square-periwinkle:rgba(110,132,232,.38);
  --square-blue:rgba(36,56,245,.30);
  --chip-mint:#c2f0e4;--chip-peach:#f7d5ab;--chip-lilac:#d9c9f7;--chip-periwinkle:#c3cdf7;
  --border-chip:rgba(16,16,20,.85);
  --font-core:'Instrument Sans','Helvetica Neue',Helvetica,Arial,sans-serif;
  --grid:clamp(56px,9vw,128px);
  --gutter:clamp(20px,5vw,72px);
}
*{box-sizing:border-box}
html,body{margin:0}
body{background:var(--paper);font-family:var(--font-core);color:var(--ink);-webkit-font-smoothing:antialiased}
a{color:var(--blue)}a:hover{color:var(--blue-deep)}
img,svg{max-width:100%;display:block}
::selection{background:var(--blue);color:#fff}

/* ── PAPER / GRID BACKGROUND ─────────────────────────── */
.paper{background-color:var(--paper);background-image:linear-gradient(var(--grid-line) 1px,transparent 1px),linear-gradient(90deg,var(--grid-line) 1px,transparent 1px);background-size:var(--grid) var(--grid);position:relative}
.paper::before{content:"";position:absolute;inset:0;background-image:url("data:image/svg+xml;base64,PHN2ZyB4bWxucz0naHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmcnIHdpZHRoPScyNDAnIGhlaWdodD0nMjQwJz48ZmlsdGVyIGlkPSduJz48ZmVUdXJidWxlbmNlIHR5cGU9J2ZyYWN0YWxOb2lzZScgYmFzZUZyZXF1ZW5jeT0nMC45JyBudW1PY3RhdmVzPScyJy8+PC9maWx0ZXI+PHJlY3Qgd2lkdGg9JzI0MCcgaGVpZ2h0PScyNDAnIGZpbHRlcj0ndXJsKCNuKScgb3BhY2l0eT0nMC4xNicvPjwvc3ZnPg==");pointer-events:none;mix-blend-mode:multiply}
.vig::after{content:"";position:absolute;inset:0;background:radial-gradient(ellipse at center,transparent 55%,rgba(16,16,20,.18) 100%);pointer-events:none}
.sq{position:absolute;pointer-events:none}

/* ── NAV ─────────────────────────────────────────────── */
nav.site{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:clamp(18px,3vw,28px) var(--gutter);position:relative;z-index:5}
.wm{font-weight:600;font-size:clamp(18px,2vw,21px);letter-spacing:-0.02em;white-space:nowrap;color:var(--ink);text-decoration:none}
.links{display:flex;align-items:center;gap:clamp(18px,3vw,36px)}
.links a{color:var(--ink);text-decoration:none;font-weight:500;font-size:clamp(14px,1.3vw,16px);white-space:nowrap}
.links a:hover,.links a.active{color:var(--blue)}
.cta{background:var(--blue);color:#fff !important;text-decoration:none;font-weight:600;border-radius:999px;display:inline-block;white-space:nowrap;padding:11px 22px;font-size:15px;line-height:1}
.cta:hover{filter:brightness(.92)}.cta:active{transform:scale(.98)}
.cta-sm{font-size:clamp(13px,1.2vw,15px);padding:9px clamp(16px,2vw,22px)}
.cta-lg{font-size:clamp(16px,1.4vw,20px);padding:clamp(13px,1.6vw,16px) clamp(26px,3vw,44px)}
.burger{display:none;width:44px;height:44px;padding:0;border:0;background:transparent;cursor:pointer;position:relative;z-index:6}
.burger span{position:absolute;left:10px;right:10px;height:2px;background:var(--ink);border-radius:2px;transition:transform .25s ease,opacity .2s ease,top .25s ease}
.burger span:nth-child(1){top:15px}
.burger span:nth-child(2){top:21px}
.burger span:nth-child(3){top:27px}
.burger[aria-expanded="true"] span:nth-child(1){top:21px;transform:rotate(45deg)}
.burger[aria-expanded="true"] span:nth-child(2){opacity:0}
.burger[aria-expanded="true"] span:nth-child(3){top:21px;transform:rotate(-45deg)}

/* ── HERO ────────────────────────────────────────────── */
.hero{min-height:100svh;overflow:hidden;display:flex;flex-direction:column}
.hero .sq-a{top:0;right:clamp(40px,12vw,140px);width:clamp(64px,9vw,110px);aspect-ratio:1;background:var(--square-periwinkle)}
.hero .sq-b{top:clamp(220px,30vw,340px);right:clamp(200px,32vw,420px);width:clamp(72px,11vw,130px);aspect-ratio:1;background:var(--square-blue)}
.hero .sq-c{bottom:clamp(60px,8vw,90px);left:0;width:clamp(56px,8vw,100px);aspect-ratio:1;background:var(--square-periwinkle)}
.hero-main{padding:clamp(28px,6vw,88px) var(--gutter) 0;position:relative;z-index:1;flex:1}
.motif{font-weight:600;font-size:clamp(15px,1.7vw,20px);letter-spacing:0.01em}
.motif .muted{color:var(--ink-soft);opacity:.55}.motif .act{color:var(--blue)}
h1{margin:clamp(12px,2vw,18px) 0 0;font-weight:700;letter-spacing:-0.045em;line-height:0.92;font-size:clamp(44px,11vw,158px);overflow-wrap:break-word}
.grad{background:var(--blue-gradient);-webkit-background-clip:text;background-clip:text;color:transparent}
h1 span{display:block}
.sub{margin:clamp(20px,3.2vw,36px) 0 0;max-width:620px;font-weight:500;font-size:clamp(15px,1.7vw,24px);line-height:1.4;letter-spacing:-0.01em;color:var(--ink-soft)}
.hero-cta{margin:clamp(28px,4.5vw,44px) 0 clamp(48px,8vw,88px)}

/* ── PROBLEM ─────────────────────────────────────────── */
.problem{background:var(--paper-light);padding:clamp(56px,8vw,120px) var(--gutter);display:grid;grid-template-columns:1fr 1fr;gap:clamp(28px,4vw,72px);align-items:center}
.problem-h{font-weight:500;font-size:clamp(26px,3vw,44px);letter-spacing:-0.02em;line-height:1.1}
.problem p{margin:20px 0 0;max-width:460px;font-weight:500;font-size:clamp(15px,1.6vw,18px);line-height:1.5;color:var(--ink-soft)}
.noise{display:flex;flex-wrap:wrap;gap:12px 20px;max-width:520px;font-weight:500;font-size:clamp(15px,1.8vw,19px);color:var(--ink-soft)}
.noise s{text-decoration-thickness:2px;opacity:.45}
.do{font-weight:700;font-size:clamp(56px,10vw,96px);letter-spacing:-0.045em;color:var(--blue);line-height:1;width:100%;margin-top:8px}

/* ── HOW ─────────────────────────────────────────────── */
.how{padding:clamp(56px,8vw,110px) var(--gutter);overflow:hidden}
.how .sq-1{top:40px;right:0;width:clamp(56px,7vw,90px);aspect-ratio:1;background:var(--square-periwinkle)}
.kicker{font-weight:600;font-size:clamp(15px,1.5vw,18px);color:var(--ink-soft)}
.how-h{margin-top:10px;font-weight:700;font-size:clamp(34px,4.5vw,64px);letter-spacing:-0.04em;color:var(--blue)}
.steps{display:grid;grid-template-columns:1fr auto 1fr auto 1fr;gap:clamp(16px,2vw,32px);align-items:start;margin-top:clamp(32px,4vw,64px)}
.stepn{font-weight:700;font-size:clamp(13px,1.2vw,15px);letter-spacing:.08em;color:var(--blue)}
.stept{margin-top:12px;font-weight:600;font-size:clamp(20px,2.2vw,24px);letter-spacing:-0.02em}
.steps p{margin:10px 0 0;font-weight:500;font-size:clamp(15px,1.6vw,17px);line-height:1.45;color:var(--ink-soft)}
.steps svg{margin-top:44px}

/* ── COUNTER ─────────────────────────────────────────── */
.counter{background:var(--ink);color:#fff;padding:clamp(64px,9vw,130px) var(--gutter);text-align:center;position:relative;overflow:hidden}
.counter .sq-1{top:0;left:clamp(24px,8vw,120px);width:clamp(64px,8vw,100px);aspect-ratio:1;background:var(--square-blue)}
.counter .sq-2{bottom:0;right:clamp(40px,12vw,180px);width:clamp(56px,7vw,80px);aspect-ratio:1;background:var(--square-periwinkle)}
.counter-n{font-weight:700;font-size:clamp(72px,13vw,190px);letter-spacing:-0.045em;line-height:1;background:linear-gradient(180deg,#4a5eff 0%,#8fa0ff 100%);-webkit-background-clip:text;background-clip:text;color:transparent}
.counter-l{margin-top:18px;font-weight:500;font-size:clamp(16px,2vw,26px);letter-spacing:-0.01em;color:rgba(255,255,255,.85)}

/* ── ARTICLES LIST ───────────────────────────────────── */
.articles{padding:clamp(56px,8vw,110px) var(--gutter)}
.art-head{display:flex;align-items:baseline;justify-content:space-between;gap:16px;flex-wrap:wrap}
.art-h{font-weight:700;font-size:clamp(30px,4vw,56px);letter-spacing:-0.04em}
.art-all{font-weight:600;font-size:clamp(15px,1.4vw,17px);color:var(--blue);text-decoration:none}
.art-all:hover{color:var(--blue-deep)}
.art-list{display:flex;flex-direction:column;margin-top:clamp(24px,3vw,48px);border-top:1px solid rgba(16,16,20,.25)}
.art{display:grid;grid-template-columns:1fr auto;gap:8px 32px;align-items:center;padding:clamp(20px,2.6vw,26px) 8px;border-bottom:1px solid rgba(16,16,20,.25);text-decoration:none;color:var(--ink)}
.art:hover{background:rgba(255,255,255,.35)}
.art-t{font-weight:600;font-size:clamp(18px,2vw,26px);letter-spacing:-0.02em}
.art-hook{margin-top:6px;font-weight:500;font-size:clamp(14px,1.5vw,16px);color:var(--ink-soft)}
.art-meta{display:flex;align-items:center;gap:14px;flex-wrap:wrap}
.chip{border:1px solid var(--border-chip);border-radius:999px;padding:6px 16px;font-weight:500;font-size:clamp(12px,1.2vw,14px);white-space:nowrap}
.read{font-weight:500;font-size:clamp(12px,1.2vw,14px);color:var(--ink-soft);white-space:nowrap}

/* ── FOUNDER ─────────────────────────────────────────── */
.founder{background:var(--paper-light);padding:clamp(48px,7vw,96px) var(--gutter);display:flex;flex-direction:row-reverse;justify-content:space-between;gap:clamp(24px,4vw,56px);align-items:center}
.photo{width:clamp(112px,14vw,150px);height:clamp(112px,14vw,150px);flex-shrink:0;background:var(--paper-dark);object-fit:cover;object-position:center 20%;border-radius:2px;display:block}
.photo-lg{width:clamp(180px,26vw,320px);height:clamp(180px,26vw,320px)}
.founder p{margin:0;max-width:640px;font-weight:500;font-size:clamp(17px,2vw,24px);line-height:1.45;letter-spacing:-0.01em}
.founder a{display:inline-block;margin-top:16px;font-weight:600;font-size:clamp(15px,1.5vw,17px);color:var(--blue);text-decoration:none}
.founder a:hover{color:var(--blue-deep)}

/* ── FINAL / CTA ─────────────────────────────────────── */
.final{padding:clamp(64px,9vw,130px) var(--gutter);text-align:center;overflow:hidden}
.final .sq-1{top:30px;left:0;width:clamp(56px,7vw,90px);aspect-ratio:1;background:var(--square-periwinkle)}
.final .sq-2{bottom:60px;right:clamp(24px,6vw,80px);width:clamp(72px,9vw,110px);aspect-ratio:1;background:var(--square-blue)}
.final-h{font-weight:700;font-size:clamp(36px,7vw,96px);letter-spacing:-0.045em;line-height:.95}
.final .cta-lg{margin-top:clamp(28px,4vw,40px)}
.nl-note{margin-top:clamp(24px,3.6vw,36px);font-weight:500;font-size:clamp(14px,1.4vw,15px);color:var(--ink-soft)}
.nl{display:flex;justify-content:center;gap:10px;margin-top:14px;flex-wrap:wrap;position:relative;z-index:1}
.nl input{font-family:var(--font-core);font-weight:500;font-size:16px;padding:12px 20px;border:1px solid var(--border-chip);border-radius:999px;background:rgba(255,255,255,.6);color:var(--ink);width:min(260px,80vw);outline:none}
.nl input:focus{border-color:var(--blue)}
.nl button{font-family:var(--font-core);font-weight:600;font-size:16px;padding:12px 26px;border:1px solid var(--border-chip);border-radius:999px;background:var(--chip-periwinkle);color:var(--ink);cursor:pointer}
.nl button:hover{filter:brightness(.94)}

/* ── FOOTER ──────────────────────────────────────────── */
footer{background:var(--ink);color:rgba(255,255,255,.7);padding:clamp(40px,5vw,64px) var(--gutter);display:flex;flex-wrap:wrap;gap:16px 32px;justify-content:space-between;align-items:center;font-weight:500;font-size:14px}
footer a{color:rgba(255,255,255,.85);text-decoration:none}
footer a:hover{color:#fff}
.foot-links{display:flex;gap:20px;flex-wrap:wrap}

/* ── PAGE HEADER (for inner pages) ───────────────────── */
.page-hero{padding:clamp(48px,7vw,120px) var(--gutter) clamp(40px,6vw,80px);position:relative;overflow:hidden}
.page-hero .sq-a{top:0;right:clamp(40px,10vw,140px);width:clamp(56px,8vw,100px);aspect-ratio:1;background:var(--square-periwinkle)}
.page-hero .sq-b{bottom:0;left:0;width:clamp(56px,7vw,90px);aspect-ratio:1;background:var(--square-blue)}
.page-hero .kicker{margin-bottom:14px}
.page-h{font-weight:700;font-size:clamp(44px,8vw,120px);letter-spacing:-0.045em;line-height:.95;color:var(--ink);max-width:960px}
.page-sub{margin:clamp(20px,3vw,32px) 0 0;max-width:680px;font-weight:500;font-size:clamp(17px,2vw,24px);line-height:1.4;letter-spacing:-0.01em;color:var(--ink-soft)}

/* ── ARTICLE READER LAYOUT ───────────────────────────── */
.reader{padding:clamp(32px,5vw,64px) var(--gutter) clamp(64px,8vw,120px)}
.reader-wrap{max-width:720px;margin:0 auto}
.reader-meta{display:flex;flex-wrap:wrap;gap:10px 16px;align-items:center;font-size:14px;color:var(--ink-soft);margin-bottom:24px}
.reader-meta .chip{background:var(--chip-mint)}
.reader h2{font-weight:700;font-size:clamp(24px,2.6vw,32px);letter-spacing:-0.02em;margin:clamp(28px,3.5vw,44px) 0 clamp(12px,1.5vw,16px);line-height:1.15}
.reader h3{font-weight:700;font-size:clamp(19px,2vw,22px);letter-spacing:-0.015em;margin:clamp(24px,3vw,32px) 0 10px}
.reader p,.reader li{font-size:clamp(17px,1.7vw,19px);line-height:1.65;color:var(--ink);margin:14px 0}
.reader ul,.reader ol{padding-left:24px}
.reader li{margin:6px 0}
.reader strong{font-weight:700}
.reader blockquote{margin:clamp(24px,3vw,36px) 0;padding:clamp(18px,2vw,24px) clamp(20px,2.5vw,28px);background:var(--paper-light);border-left:3px solid var(--blue);font-weight:500;font-size:clamp(17px,1.8vw,20px);line-height:1.5;color:var(--ink)}
.reader hr{border:0;border-top:1px solid rgba(16,16,20,.2);margin:clamp(32px,4vw,56px) 0}
.action-box{margin:clamp(36px,5vw,56px) 0 0;padding:clamp(24px,3vw,36px);background:var(--ink);color:#fff;border-radius:6px;position:relative;overflow:hidden}
.action-box .stepn{color:#8fa0ff}
.action-box .stept{margin-top:8px;font-size:clamp(20px,2vw,26px);color:#fff}
.action-box p{color:rgba(255,255,255,.82);margin:12px 0 0}
.action-box .cta{margin-top:22px;background:#fff;color:var(--ink) !important}

/* Prev/Next article nav */
.pn{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:clamp(40px,5vw,64px);padding-top:clamp(24px,3vw,36px);border-top:1px solid rgba(16,16,20,.2)}
.pn a{text-decoration:none;color:var(--ink);padding:16px;border:1px solid rgba(16,16,20,.2);border-radius:6px;font-weight:600;font-size:15px;transition:background .15s ease}
.pn a:hover{background:var(--paper-light)}
.pn .lbl{display:block;font-weight:500;font-size:12px;text-transform:uppercase;letter-spacing:.08em;color:var(--ink-soft);margin-bottom:6px}
.pn .r{text-align:right}

/* ── ABOUT / GENERIC PROSE ───────────────────────────── */
.prose-section{padding:clamp(48px,6vw,96px) var(--gutter)}
.prose-wrap{max-width:760px;margin:0 auto}
.prose-wrap h2{font-weight:700;font-size:clamp(26px,3vw,40px);letter-spacing:-0.03em;margin:clamp(28px,3.5vw,44px) 0 clamp(12px,1.5vw,16px)}
.prose-wrap p{font-size:clamp(17px,1.7vw,20px);line-height:1.6;color:var(--ink);margin:14px 0}

/* ── PILLARS / VALUE PROP BLOCKS ─────────────────────── */
.pillars{padding:clamp(48px,7vw,96px) var(--gutter);background:var(--paper-light)}
.pillars-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:clamp(20px,2.5vw,32px);margin-top:clamp(24px,3vw,40px)}
.pillar{background:var(--paper);padding:clamp(24px,3vw,36px);border-radius:6px;border:1px solid rgba(16,16,20,.08)}
.pillar h3{font-weight:700;font-size:clamp(20px,2vw,24px);letter-spacing:-0.02em;margin:0 0 10px}
.pillar p{margin:0;font-weight:500;font-size:clamp(15px,1.5vw,17px);line-height:1.5;color:var(--ink-soft)}

/* ── FAQ ─────────────────────────────────────────────── */
.faq{padding:clamp(48px,7vw,96px) var(--gutter)}
.faq-wrap{max-width:820px;margin:0 auto}
.faq details{border-bottom:1px solid rgba(16,16,20,.2);padding:20px 0}
.faq details:first-of-type{border-top:1px solid rgba(16,16,20,.2)}
.faq summary{cursor:pointer;font-weight:600;font-size:clamp(17px,1.8vw,20px);letter-spacing:-0.015em;list-style:none;display:flex;justify-content:space-between;align-items:center;gap:16px}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font-size:24px;font-weight:400;color:var(--blue);transition:transform .2s ease}
.faq details[open] summary::after{transform:rotate(45deg)}
.faq details p{margin:14px 0 0;font-weight:500;font-size:clamp(15px,1.6vw,17px);line-height:1.55;color:var(--ink-soft)}

/* ── RESPONSIVE ──────────────────────────────────────── */
@media (min-width:1600px){
  nav.site,.hero-main,.problem,.how,.counter > *:not(.sq),.articles,.founder,.final > *:not(.sq),footer,.page-hero,.pillars > *,.prose-section > *,.faq > *{max-width:1520px;margin-left:auto;margin-right:auto}
}
@media (max-width:900px){
  .steps{grid-template-columns:1fr;gap:32px}
  .steps svg{display:none}
  .pillars-grid{grid-template-columns:1fr}
}
@media (max-width:760px){
  .problem{grid-template-columns:1fr}
}
@media (max-width:720px){
  .hero .sq-b{display:none}
  .burger{display:block}
  .links{position:absolute;top:100%;left:0;right:0;flex-direction:column;align-items:stretch;gap:0;padding:8px var(--gutter) 20px;background:var(--paper);border-bottom:1px solid rgba(16,16,20,.08);box-shadow:0 12px 28px rgba(16,16,20,.08);transform:translateY(-8px);opacity:0;pointer-events:none;transition:transform .22s ease,opacity .22s ease}
  .links a{padding:14px 4px;font-size:17px;border-bottom:1px solid rgba(16,16,20,.06)}
  .links a:last-child{border-bottom:0}
  .links .cta-sm{align-self:flex-start;margin-top:12px;padding:11px 22px;font-size:15px;border-bottom:0}
  nav.site.open .links{transform:translateY(0);opacity:1;pointer-events:auto}
}
@media (max-width:700px){
  .art{grid-template-columns:1fr}
  .founder{flex-direction:column;align-items:flex-start}
  .pn{grid-template-columns:1fr}
  .pn .r{text-align:left}
}
@media (max-width:420px){
  .hero .sq-a{right:clamp(24px,6vw,60px);width:64px}
  .hero .sq-c{width:56px;bottom:48px}
  h1{font-size:clamp(42px,13vw,80px)}
}