/* ============================================================
   EmoteResizer — "streamer's dark studio"
   Chroma-key green on studio black · checkerboard transparency motif
   ============================================================ */

:root{
  --bg:#0b0d10;
  --bg-2:#101318;
  --panel:#14181e;
  --line:#232a33;
  --ink:#e9eef2;
  --ink-dim:#9aa7b1;
  --chroma:#33ff88;
  --chroma-deep:#0fd465;
  --warn:#ff5470;
  --check-a:#161a20;
  --check-b:#0e1116;
  --radius:14px;
  --mono:"SF Mono",ui-monospace,Menlo,Consolas,monospace;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font:16px/1.65 "Bricolage Grotesque",system-ui,sans-serif;
  -webkit-font-smoothing:antialiased;
}
::selection{background:var(--chroma);color:#06130b}

/* ---------- header ---------- */
.site-head{
  display:flex;align-items:center;justify-content:space-between;
  padding:18px clamp(16px,4vw,48px);
  border-bottom:1px solid var(--line);
}
.brand{font-weight:800;font-size:19px;letter-spacing:-.02em;display:flex;align-items:center;gap:10px}
.brand b{color:var(--chroma);font-weight:800}
.brand-check{
  width:20px;height:20px;border-radius:5px;flex:none;
  background:repeating-conic-gradient(var(--chroma) 0% 25%, #0a0c0f 0% 50%) 0 0/10px 10px;
  box-shadow:0 0 12px rgba(51,255,136,.35);
}
.brand-check.small{width:14px;height:14px;display:inline-block;vertical-align:-2px;background-size:7px 7px}
.head-nav{display:flex;gap:22px}
.head-nav a{color:var(--ink-dim);text-decoration:none;font-size:14.5px;font-weight:500}
.head-nav a:hover{color:var(--chroma)}

/* ---------- hero ---------- */
main{max-width:1060px;margin:0 auto;padding:0 clamp(16px,4vw,32px) 40px}
.hero{padding-top:clamp(36px,7vh,72px);text-align:center}
h1{
  font-size:clamp(38px,7vw,72px);
  font-weight:800;letter-spacing:-.035em;line-height:.98;margin:0;
  animation:rise .6s cubic-bezier(.2,.7,.2,1) both;
}
.h1-sub{
  display:block;font-size:clamp(15px,2.2vw,20px);font-weight:500;
  color:var(--chroma);letter-spacing:.06em;margin-top:14px;text-transform:uppercase;
}
.lede{
  max-width:640px;margin:20px auto 0;color:var(--ink-dim);font-size:17px;
  animation:rise .6s .08s cubic-bezier(.2,.7,.2,1) both;
}
.lede em{color:var(--ink);font-style:normal;font-weight:600}
@keyframes rise{from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:none}}

/* ---------- preset chips ---------- */
.presets{
  display:flex;flex-wrap:wrap;gap:10px;justify-content:center;
  margin:34px 0 18px;
  animation:rise .6s .16s cubic-bezier(.2,.7,.2,1) both;
}
.chip{
  display:inline-flex;align-items:center;gap:8px;
  border:1px solid var(--line);border-radius:999px;
  background:var(--panel);color:var(--ink-dim);
  padding:9px 16px;font-size:14px;font-weight:600;cursor:pointer;
  transition:border-color .15s,color .15s,box-shadow .15s;
  user-select:none;
}
.chip .sizes{font-family:var(--mono);font-size:11.5px;color:var(--ink-dim);font-weight:400}
.chip.on{border-color:var(--chroma);color:var(--ink);box-shadow:0 0 0 1px var(--chroma),0 0 18px rgba(51,255,136,.18)}
.chip.on::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--chroma);box-shadow:0 0 8px var(--chroma)}
.chip input{position:absolute;opacity:0;pointer-events:none}
.chip.custom input[type=number]{
  position:static;opacity:1;pointer-events:auto;width:64px;
  background:var(--bg);border:1px solid var(--line);border-radius:6px;
  color:var(--ink);font-family:var(--mono);font-size:13px;padding:3px 6px;
}

/* ---------- dropzone: the checkerboard stage ---------- */
.dropzone{
  position:relative;margin:10px auto 0;max-width:760px;
  border:2px dashed #2c3742;border-radius:var(--radius);
  background:repeating-conic-gradient(var(--check-a) 0% 25%, var(--check-b) 0% 50%) 0 0/28px 28px;
  cursor:pointer;outline:none;
  transition:border-color .18s, box-shadow .18s;
  animation:rise .6s .22s cubic-bezier(.2,.7,.2,1) both;
}
.dropzone:hover,.dropzone:focus-visible{border-color:var(--chroma);box-shadow:0 0 0 1px var(--chroma),0 10px 50px -18px rgba(51,255,136,.45)}
.dropzone.drag{border-color:var(--chroma);box-shadow:inset 0 0 60px rgba(51,255,136,.12),0 0 0 2px var(--chroma)}
.dz-inner{padding:clamp(36px,7vw,72px) 20px}
.dz-emoji{font-size:44px;filter:drop-shadow(0 4px 14px rgba(51,255,136,.35))}
.dz-title{font-size:clamp(20px,3vw,26px);font-weight:700;margin:14px 0 4px;letter-spacing:-.01em}
.dz-or{color:var(--ink-dim);font-size:13.5px;margin:0 0 20px;font-family:var(--mono)}

.btn-primary{
  background:var(--chroma);color:#06130b;border:none;border-radius:10px;
  font:700 15px/1 "Bricolage Grotesque",sans-serif;padding:13px 26px;cursor:pointer;
  box-shadow:0 6px 24px -8px rgba(51,255,136,.6);
  transition:transform .12s, box-shadow .12s;
}
.btn-primary:hover{transform:translateY(-1px);box-shadow:0 10px 30px -8px rgba(51,255,136,.7)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{
  background:none;border:1px solid var(--line);border-radius:10px;color:var(--ink-dim);
  font:600 14px/1 "Bricolage Grotesque",sans-serif;padding:12px 20px;cursor:pointer;
}
.btn-ghost:hover{color:var(--ink);border-color:#3a4552}

/* ---------- results ---------- */
.results-bar{
  display:flex;align-items:center;gap:14px;justify-content:center;
  margin:30px 0 6px;flex-wrap:wrap;
}
.results-bar span{color:var(--ink-dim);font-size:14px;font-family:var(--mono)}
.results{display:grid;gap:16px;margin-top:16px;text-align:left}
.file-card{
  background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);
  padding:18px;animation:rise .4s both;
}
.file-card h4{
  margin:0 0 12px;font-size:15px;font-weight:700;display:flex;align-items:center;gap:10px;
  word-break:break-all;
}
.file-card h4 .ftype{font-family:var(--mono);font-size:11px;color:var(--chroma);border:1px solid rgba(51,255,136,.35);border-radius:5px;padding:2px 7px;flex:none}
.variants{display:flex;flex-wrap:wrap;gap:12px}
.variant{
  display:flex;flex-direction:column;align-items:center;gap:7px;
  background:var(--bg-2);border:1px solid var(--line);border-radius:10px;padding:12px;
  min-width:106px;
}
.variant .thumb{
  border-radius:6px;
  background:repeating-conic-gradient(#1b212a 0% 25%, #12161c 0% 50%) 0 0/12px 12px;
  image-rendering:auto;display:block;
}
.variant .dim{font-family:var(--mono);font-size:12px;color:var(--ink)}
.variant .kb{font-family:var(--mono);font-size:11px;color:var(--chroma)}
.variant .kb.over{color:var(--warn)}
.variant a{
  color:#06130b;background:var(--chroma);border-radius:6px;text-decoration:none;
  font-size:12px;font-weight:700;padding:5px 12px;
}
.variant a:hover{filter:brightness(1.1)}
.variant .plat{font-size:10.5px;letter-spacing:.08em;text-transform:uppercase;color:var(--ink-dim)}
.processing{color:var(--ink-dim);font-family:var(--mono);font-size:13px;padding:8px 2px}

/* ---------- content sections ---------- */
.content{
  margin-top:clamp(60px,10vh,110px);
  padding-top:34px;
  position:relative;
}
.content::before{ /* checkered divider — the transparency motif */
  content:"";position:absolute;top:0;left:0;right:0;height:8px;border-radius:4px;
  background:repeating-conic-gradient(#222a33 0% 25%, transparent 0% 50%) 0 0/16px 16px;
}
h2{font-size:clamp(26px,4vw,38px);font-weight:800;letter-spacing:-.025em;margin:0 0 14px}
.content > p{color:var(--ink-dim);max-width:700px}
h3{font-size:17.5px;font-weight:700;margin:0 0 8px}
code{
  font-family:var(--mono);font-size:.86em;color:var(--chroma);
  background:rgba(51,255,136,.08);border:1px solid rgba(51,255,136,.18);
  border-radius:5px;padding:1px 6px;white-space:nowrap;
}
.guide-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(290px,1fr));gap:16px;margin-top:26px}
.guide-grid article{
  background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:22px;
}
.guide-grid p{color:var(--ink-dim);margin:0;font-size:15px}
.guide-grid strong{color:var(--ink)}

.steps{list-style:none;margin:26px 0 0;padding:0;display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:16px;counter-reset:step}
.steps li{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:22px}
.steps h3{color:var(--chroma)}
.steps p{color:var(--ink-dim);margin:0;font-size:15px}

/* FAQ */
#faq details{
  border:1px solid var(--line);border-radius:12px;background:var(--panel);
  margin-top:12px;padding:4px 20px;
}
#faq summary{cursor:pointer;padding:14px 0;list-style:none;display:flex;align-items:center;gap:12px}
#faq summary::before{content:"+";font-weight:800;color:var(--chroma);font-size:20px;width:18px;flex:none}
#faq details[open] summary::before{content:"–"}
#faq summary h3{margin:0;display:inline;font-size:16.5px}
#faq details p{color:var(--ink-dim);margin:0 0 18px 30px;font-size:15px}

/* related tools (internal link matrix) */
.related{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
.related a{
  color:var(--ink);text-decoration:none;font-size:14px;font-weight:600;
  border:1px solid var(--line);border-radius:999px;padding:9px 18px;background:var(--panel);
}
.related a:hover{border-color:var(--chroma);color:var(--chroma)}

/* ---------- footer ---------- */
.site-foot{
  border-top:1px solid var(--line);margin-top:80px;
  padding:34px clamp(16px,4vw,48px) 44px;text-align:center;
}
.site-foot p{margin:6px 0;color:var(--ink-dim);font-size:14px}
.site-foot .fine{font-size:12px;color:#5c6873;max-width:640px;margin:10px auto 0}

@media (max-width:560px){
  .head-nav{display:none}
  .variants{justify-content:center}
}