/* =====================================================================
   C³ — Claude Cambodia Community
   Layout modelled on claudecode.sg; Khmer handling and the LEGO-temple
   motif carried over from upgradelab.asia; UpgradeLab tokens only in the
   sponsor bar, so the sponsor reads as a sponsor, not as the owner of the room.
   ===================================================================== */
:root{
  --clay:#D97757;          /* Claude terracotta — hero, CTAs */
  --clay-deep:#B85C3E;
  --clay-ink:#3B1F14;      /* dark brown for the "KH" half of the wordmark */
  --cream:#F0EBE1;         /* page */
  --cream-2:#F5F0E8;       /* alternate section */
  --cream-3:#FAF7F2;
  --ink:#1A1A1A;
  --ink-2:#262626;         /* dark band */
  --muted:#6B645C;
  --line:#E2D9CB;
  --linkedin:#0A66C2;
  /* sponsor bar: UpgradeLab brand tokens, untouched */
  --petrol:#0A5C66; --petrol-deep:#06414A; --amber:#FFB524; --paper:#F7F6F0;

  --sans:'Inter','Noto Sans Khmer',system-ui,sans-serif;
  --serif:'EB Garamond','Noto Serif Khmer',Georgia,serif;
  --mono:'IBM Plex Mono',ui-monospace,monospace;
  --radius:22px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:84px}
body{margin:0;background:var(--cream);color:var(--ink);font-family:var(--sans);font-size:16px;line-height:1.6;-webkit-font-smoothing:antialiased;overflow-x:hidden}
img,svg{display:block}
a{color:inherit}
h1,h2,h3{margin:0;line-height:1.12;letter-spacing:-.02em}
p{margin:0 0 1em}
.wrap{max-width:1200px;margin:0 auto;padding:0 24px}
.skip{position:absolute;left:-999px;top:8px;background:var(--ink);color:#fff;padding:8px 14px;border-radius:8px;z-index:100}
.skip:focus{left:8px}
:focus-visible{outline:3px solid var(--amber);outline-offset:3px;border-radius:6px}

.km-note{display:none;background:var(--amber);color:var(--ink);font-size:.8rem;text-align:center;padding:7px 14px}
body.lang-km .km-note{display:block}

/* ---------- sponsor bar ---------- */
.sponsor-bar{background:var(--paper);border-bottom:1px solid #E6E3D8;font-size:.86rem}
.sponsor-inner{display:flex;align-items:center;gap:28px;min-height:52px}
.sponsor-brand{display:flex;align-items:center;gap:8px;text-decoration:none;color:var(--petrol-deep)}
.sponsor-brand b{font-weight:700;font-size:1rem;letter-spacing:-.01em}
.ul-mark{display:inline-flex;gap:2px;background:var(--petrol);border-radius:4px;padding:3px 4px 4px}
.ul-mark i{width:5px;height:5px;border-radius:1.5px;background:var(--amber)}
.sponsor-tag{font-family:var(--mono);font-size:.68rem;letter-spacing:.14em;text-transform:uppercase;color:var(--petrol);opacity:.75}
.sponsor-links{display:flex;gap:22px;list-style:none;margin:0 auto;padding:0}
.sponsor-links a{text-decoration:none;color:#3c4a4c}
.sponsor-links a:hover{color:var(--petrol)}
.sponsor-cta{text-decoration:none;border:1.5px solid var(--petrol);color:var(--petrol);padding:6px 16px;border-radius:999px;font-weight:600;white-space:nowrap}
.sponsor-cta:hover{background:var(--petrol);color:var(--paper)}

/* ---------- nav ---------- */
.nav{position:sticky;top:0;z-index:50;background:rgba(240,235,225,.94);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.nav-inner{display:flex;align-items:center;gap:20px;min-height:76px}
.logo{display:flex;flex-direction:column;text-decoration:none;line-height:1}
.logo-word{font-family:var(--serif);font-size:1.9rem;letter-spacing:-.01em}
.lw-claude{color:var(--ink)}
.lw-kh{color:var(--clay);margin-left:.18em}
.logo-sub{font-family:var(--serif);font-size:.82rem;letter-spacing:.42em;margin-top:2px;color:var(--ink)}
.nav-links{display:flex;align-items:center;gap:6px;list-style:none;margin:0 0 0 auto;padding:0}
.nav-links a{text-decoration:none;color:#3a3530;font-size:1.02rem;padding:8px 12px;border-radius:10px;white-space:nowrap}
.nav-links a:hover{color:var(--clay-deep)}
.nav-cta{background:var(--clay);color:#fff!important;padding:11px 24px!important;border-radius:999px!important;font-weight:600}
.nav-cta:hover{background:var(--clay-deep)}
.lang-toggle{display:inline-flex;border:1.5px solid var(--line);border-radius:999px;padding:2px;margin:0 4px}
.lang-toggle button{border:0;background:transparent;font:600 .8rem var(--sans);padding:5px 11px;border-radius:999px;cursor:pointer;color:var(--muted)}
.lang-toggle button[data-lang="km"]{font-family:'Noto Sans Khmer',sans-serif}
.lang-toggle button.active{background:var(--ink);color:#fff}
.menu-btn{display:none;margin-left:auto;border:0;background:none;font-size:1.6rem;cursor:pointer;color:var(--ink)}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;gap:10px;text-decoration:none;font:600 1.08rem var(--sans);padding:18px 36px;border-radius:999px;border:2px solid transparent;cursor:pointer;transition:transform .2s,background .2s,box-shadow .2s}
.btn:hover{transform:translateY(-2px)}
.btn-light{background:#fff;color:var(--clay-deep)}
.btn-ghost{border-color:rgba(255,255,255,.55);color:#fff}
.btn-ghost:hover{background:rgba(255,255,255,.12)}
.btn-linkedin{background:var(--linkedin);color:#fff;box-shadow:0 10px 26px rgba(10,102,194,.35)}
.btn-clay{background:var(--clay);color:#fff}
.btn-clay:hover{background:var(--clay-deep)}

/* ---------- hero ---------- */
.hero{position:relative;background:var(--clay);color:#fff;text-align:center;overflow:hidden;padding:96px 0 0}
.hero-inner{position:relative;z-index:2;padding-bottom:40px}
.hero-pill{display:inline-flex;gap:10px;align-items:center;background:rgba(59,31,20,.16);border:1px solid rgba(255,255,255,.22);padding:6px 16px 6px 8px;border-radius:999px;font-size:.88rem;margin-bottom:34px}
.hero-pill b{background:var(--clay-ink);color:var(--cream);border-radius:999px;padding:2px 10px;font-weight:700}
.wordmark{display:flex;flex-direction:column;align-items:center;font-weight:400;letter-spacing:0}
.wm-line{font-family:var(--serif);font-size:clamp(4rem,11vw,9rem);line-height:.95}
.wm-claude{color:rgba(250,238,228,.82)}
.wm-kh{color:var(--clay-ink);margin-left:.2em}
.wm-sub{font-family:var(--serif);font-size:clamp(1.6rem,4.2vw,3.4rem);letter-spacing:.62em;margin-right:-.62em;color:rgba(250,238,228,.82);line-height:1.2}
.wm-khmer{font-family:'Noto Serif Khmer',serif;font-size:clamp(1rem,2vw,1.35rem);color:var(--clay-ink);margin-top:14px;opacity:.85;letter-spacing:.02em}
.verb{margin:64px 0 26px;display:flex;flex-direction:column;align-items:center}
.flip{font-size:clamp(3.2rem,7vw,5.2rem);font-weight:800;letter-spacing:-.025em;line-height:1.05;display:inline-block;transition:opacity .35s,transform .35s}
.flip.out{opacity:0;transform:translateY(12px)}
.verb-sub{font-size:1.6rem;color:rgba(255,255,255,.8);margin-top:2px}
.hero-lead{max-width:36em;margin:0 auto 44px;font-size:1.15rem;color:rgba(255,255,255,.82)}
.hero-ctas{display:flex;flex-wrap:wrap;gap:20px;justify-content:center}
.hero-temple{position:relative;z-index:1;margin-top:10px;height:clamp(150px,22vw,260px)}
.hero-temple svg{width:100%;height:100%}
.brick-el{animation:drop .7s cubic-bezier(.2,1.4,.4,1) both}
@keyframes drop{from{opacity:0;transform:translateY(-26px)}to{opacity:1;transform:none}}

/* ---------- section heads ---------- */
section{padding:110px 0}
.sec-head{max-width:760px;margin-bottom:52px}
.sec-head.center{text-align:center;margin-left:auto;margin-right:auto}
.eyebrow{font-family:var(--mono);font-size:.78rem;letter-spacing:.18em;text-transform:uppercase;color:var(--clay-deep);margin-bottom:14px}
h2{font-size:clamp(2.1rem,4.4vw,3rem);font-weight:700}
.sec-head h2{margin-bottom:18px}
.lead{font-size:1.14rem;color:var(--muted)}

/* ---------- events ---------- */
.events{background:var(--cream-3);padding-top:80px}
.event-row{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.event-card{position:relative;background:#fff;border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);display:flex;flex-direction:column;transition:transform .25s,box-shadow .25s}
.event-card:hover{transform:translateY(-4px);box-shadow:0 18px 40px rgba(59,31,20,.12)}
.date-pill{position:absolute;top:16px;left:16px;background:rgba(26,26,26,.82);color:#fff;font-weight:600;font-size:.82rem;letter-spacing:.06em;text-transform:uppercase;padding:6px 14px;border-radius:999px;z-index:1}
.ec-art{height:150px;display:grid;place-items:center;font:700 2.4rem var(--mono);color:rgba(255,255,255,.9);
  background-image:radial-gradient(circle at 25% 30%,rgba(255,255,255,.22) 0 5px,transparent 6px);background-size:26px 26px}
.ec-1 .ec-art{background-color:var(--clay)}
.ec-2 .ec-art{background-color:var(--ink-2)}
.ec-3 .ec-art{background-color:var(--petrol)}
.ec-4 .ec-art{background-color:var(--clay-ink)}
.ec-body{padding:22px 22px 24px;display:flex;flex-direction:column;flex:1}
.ec-body h3{font-size:1.15rem;margin-bottom:8px}
.ec-where{color:var(--muted);font-size:.92rem}
.ec-link{margin-top:auto;color:var(--clay-deep);font-weight:600;text-decoration:none}

/* ---------- what we do ---------- */
.what{background:var(--cream)}
.pillars{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.pillar{background:#fff;border-radius:var(--radius);padding:36px 32px;border:1px solid var(--line)}
.p-icon{display:grid;place-items:center;width:56px;height:56px;border-radius:16px;background:rgba(217,119,87,.12);color:var(--clay);margin-bottom:22px}
.p-icon svg{width:28px;height:auto}
.pillar h3{font-size:1.5rem;margin-bottom:4px}
.p-sub{color:var(--clay-deep);font-weight:600;margin-bottom:12px}
.pillar p:last-child{color:var(--muted);margin:0}

/* ---------- freestyle ---------- */
.freestyle{background:var(--cream-2)}
.fs-grid{display:grid;grid-template-columns:1fr 1.1fr;gap:64px;align-items:center}
.fs-grid h2{margin-bottom:22px}
.fs-grid p{color:var(--muted);font-size:1.08rem}
.fs-diagram{margin:0;background:#fff;border-radius:var(--radius);padding:34px;border:1px solid var(--line);text-align:center;color:var(--clay)}
.fs-ideas{display:grid;grid-template-columns:repeat(4,1fr);gap:10px}
.fs-ideas span{background:rgba(217,119,87,.12);color:var(--clay-deep);border-radius:12px;padding:10px 4px;font-weight:600;font-size:.9rem}
.fs-funnel{width:100%;height:70px}
.fs-stage{font-family:var(--mono);font-size:.78rem;color:var(--muted);margin:10px 0 18px}
.fs-out{display:flex;flex-direction:column;align-items:center;gap:10px}
.fs-core{display:grid;place-items:center;width:124px;height:124px;border-radius:50%;background:var(--clay);color:#fff;font-weight:800;font-size:1.2rem;line-height:1.15;box-shadow:0 0 0 12px rgba(217,119,87,.14),0 0 0 26px rgba(217,119,87,.07)}
.fs-teach{margin-top:18px;font-weight:600;color:var(--ink)}

/* ---------- offers (workshops + collab) ---------- */
.band-dark{background:var(--ink-2);color:#fff}
.band-dark .lead,.band-dark .offer p{color:rgba(255,255,255,.72)}
.band-dark .eyebrow{color:#F0A487}
.offer-pair{display:grid;grid-template-columns:1fr 1fr;gap:24px;margin-bottom:40px}
.offer{border-radius:var(--radius);padding:38px 36px;background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.12)}
.offer.light{background:#fff;border-color:var(--line)}
.offer.light p{color:var(--muted)}
.offer-accent{border:2px solid var(--clay)}
.offer-tag{font-family:var(--mono);font-size:.74rem;letter-spacing:.16em;text-transform:uppercase;color:var(--clay)!important;margin-bottom:12px}
.offer h3{font-size:1.6rem;margin-bottom:14px}
.offer-price{font-size:1.25rem;font-weight:700;color:var(--clay)!important}
.ticks{list-style:none;padding:0;margin:22px 0 0;display:grid;gap:12px}
.ticks li{position:relative;padding-left:30px}
.ticks li::before{content:"";position:absolute;left:0;top:.45em;width:16px;height:9px;border-left:2.5px solid var(--clay);border-bottom:2.5px solid var(--clay);transform:rotate(-45deg) translateY(-3px)}
.collab{background:var(--cream)}

/* ---------- forms ---------- */
.enquiry{max-width:860px;margin:0 auto;background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.12);border-radius:var(--radius);padding:36px}
.enquiry.light{background:#fff;border-color:var(--line)}
.form-intro{color:rgba(255,255,255,.72);margin-bottom:26px}
.enquiry.light .form-intro{color:var(--muted)}
.fields{display:grid;grid-template-columns:1fr 1fr;gap:18px 20px;margin-bottom:26px}
.fields label{display:flex;flex-direction:column;gap:7px;font-size:.9rem;font-weight:600}
.fields .full{grid-column:1/-1}
.fields input,.fields select,.fields textarea{font:400 1rem var(--sans);padding:13px 14px;border-radius:12px;border:1.5px solid rgba(255,255,255,.18);background:rgba(255,255,255,.06);color:inherit;width:100%}
.fields select option{color:var(--ink)}
.enquiry.light input,.enquiry.light select,.enquiry.light textarea{border-color:var(--line);background:var(--cream-3)}
.fields input:focus,.fields select:focus,.fields textarea:focus{outline:none;border-color:var(--clay)}
.fields .invalid{border-color:#F26B5B!important}
.form-status{margin:16px 0 0;font-weight:600;min-height:1.5em}
.form-status a{color:var(--clay)}

/* ---------- about ---------- */
.about{background:var(--cream-3)}
.about-grid{display:grid;grid-template-columns:1.2fr 1fr;gap:64px;align-items:center}
.about h2{margin-bottom:22px}
.about p{color:var(--muted);font-size:1.08rem}
.sponsor-note a{color:var(--petrol);font-weight:700}
.cubed{list-style:none;margin:0;padding:0;display:grid;gap:14px}
.cubed li{display:grid;grid-template-columns:64px 1fr;grid-template-rows:auto auto;column-gap:18px;align-items:center;background:#fff;border:1px solid var(--line);border-radius:18px;padding:18px 22px}
.cubed b{grid-row:span 2;display:grid;place-items:center;width:64px;height:64px;border-radius:14px;background:var(--clay);color:#fff;font:400 2.4rem var(--serif)}
.cubed li:nth-child(2) b{background:var(--clay-deep)}
.cubed li:nth-child(3) b{background:var(--clay-ink)}
.c-name{font-weight:700;font-size:1.15rem}
.cubed li span:last-child{color:var(--muted)}

/* ---------- gallery ---------- */
.gallery{background:var(--cream);padding-top:40px}
.gallery-grid{display:grid;grid-template-columns:2fr 1fr 1fr;grid-template-rows:180px 180px;gap:16px}
.g-tile{border-radius:18px;background-color:var(--cream-2);border:1.5px dashed #D4C6B3;
  background-image:radial-gradient(circle,rgba(217,119,87,.18) 0 4px,transparent 5px);background-size:22px 22px}
.g-big{grid-row:span 2;display:grid;place-items:center;padding:30px;text-align:center}
.g-big p{background:var(--cream);padding:10px 18px;border-radius:999px;color:var(--muted);margin:0}

/* ---------- telegram band ---------- */
.join{background:var(--clay);color:#fff;text-align:center}
.join-inner{max-width:760px}
.join h2{margin-bottom:20px}
.join p{color:rgba(255,255,255,.85);font-size:1.14rem}
.chips{font-weight:600;margin:24px 0 36px!important;color:#fff!important}

/* ---------- footer ---------- */
.footer{background:var(--ink);color:#fff;padding:96px 0 40px}
.footer .eyebrow{color:#F0A487}
.footer h2{margin-bottom:40px}
.find-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-bottom:70px}
.find{display:flex;flex-direction:column;gap:4px;text-decoration:none;border:1px solid rgba(255,255,255,.14);border-radius:18px;padding:26px;transition:border-color .2s,background .2s}
.find:hover{border-color:var(--clay);background:rgba(217,119,87,.08)}
.find b{font-size:1.3rem}
.find span{color:rgba(255,255,255,.7)}
.find .handle{color:#F0A487;font-family:var(--mono);font-size:.82rem;margin-top:6px}
.foot-base{display:flex;gap:40px;align-items:center;justify-content:space-between;border-top:1px solid rgba(255,255,255,.12);padding-top:32px}
.logo-light .lw-claude,.logo-light .logo-sub{color:var(--cream)}
.disclaimer{max-width:620px;font-size:.84rem;color:rgba(255,255,255,.55);margin:0}
.disclaimer a{color:#F0A487}

/* ---------- responsive ---------- */
@media (max-width:1280px){
  .nav-links a{padding:8px 8px;font-size:.95rem}
  .sponsor-links{display:none}
  .sponsor-cta{margin-left:auto}
}
@media (max-width:1100px){
  .menu-btn{display:block}
  .nav-links{display:none;position:absolute;top:100%;left:0;right:0;flex-direction:column;align-items:stretch;background:var(--cream);border-bottom:1px solid var(--line);padding:12px 24px 22px;gap:2px}
  .nav-links.open{display:flex}
  .nav-links li{display:flex}
  .nav-links a{flex:1;padding:12px 6px}
  .nav-cta{text-align:center;margin-top:8px}
  .event-row{grid-template-columns:repeat(2,1fr)}
  .fs-grid,.about-grid{grid-template-columns:1fr;gap:40px}
}
@media (max-width:720px){
  section{padding:76px 0}
  .wrap{padding:0 16px}
  .sponsor-tag{display:none}
  .sponsor-cta{padding:5px 12px;font-size:.8rem}
  .hero{padding-top:64px}
  .verb{margin-top:44px}
  .btn{padding:15px 26px;font-size:1rem;width:100%;justify-content:center}
  .event-row,.pillars,.offer-pair,.find-grid,.fields{grid-template-columns:1fr}
  .offer,.enquiry{padding:28px 22px}
  .gallery-grid{grid-template-columns:1fr 1fr;grid-template-rows:200px 120px 120px}
  .g-big{grid-column:span 2;grid-row:auto}
  .foot-base{flex-direction:column;align-items:flex-start}
  .fs-diagram{padding:24px 16px}
  .fs-ideas{grid-template-columns:repeat(2,1fr)}
  .fs-funnel{display:none}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition:none!important}
  html{scroll-behavior:auto}
}

/* =====================================================================
   KHMER TYPOGRAPHY — applies only while the page is in Khmer.
   Same rules as upgradelab.asia: taller line boxes for stacked vowels and
   subscripts, no letter-spacing (it pulls marks off their base letters),
   no forced capitals, and the mono label face swapped for Noto Sans Khmer
   because it has no Khmer glyphs.
   ===================================================================== */
body.lang-km{line-height:1.85}
body.lang-km h1,body.lang-km h2,body.lang-km h3{line-height:1.45;letter-spacing:0}
body.lang-km h2{font-size:clamp(1.7rem,3.4vw,2.4rem)}
body.lang-km .offer h3{font-size:1.35rem}
body.lang-km .flip{font-size:clamp(2.6rem,6vw,4.4rem);line-height:1.4;letter-spacing:0}
body.lang-km .eyebrow,
body.lang-km .offer-tag,
body.lang-km .sponsor-tag,
body.lang-km .date-pill,
body.lang-km .fs-stage,
body.lang-km .find .handle{
  font-family:'Noto Sans Khmer','Inter',sans-serif;letter-spacing:0;text-transform:none;
}
body.lang-km .eyebrow,body.lang-km .offer-tag{font-size:.92rem}
body.lang-km .date-pill{font-size:.8rem}
body.lang-km .nav-links a{font-size:.95rem}
body.lang-km .btn{line-height:1.5}