/* =========================================================
   AI Game Generator — styles
   One accent, hairline structure, rhythm over decoration.
   ========================================================= */

:root{
  --bg:#0A0C11;
  --bg-soft:#0E1118;
  --surface:#12161F;
  --surface-2:#171C27;
  --line:rgba(255,255,255,.075);
  --line-2:rgba(255,255,255,.16);
  --text:#E9EDF5;
  --muted:#8B94A7;
  --muted-2:#5F6878;
  --accent:#7C5CFF;
  --accent-soft:rgba(124,92,255,.14);
  --accent-line:rgba(124,92,255,.45);
  --ok:#34D399;
  --bad:#FF6B6B;

  --sans:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  --mono:ui-monospace,SFMono-Regular,"SF Mono",Menlo,Consolas,"Liberation Mono",monospace;

  --r-sm:8px; --r-md:12px; --r-lg:18px;
  --pad:clamp(16px,2.2vw,24px);
  --shadow:0 1px 0 rgba(255,255,255,.03) inset, 0 18px 40px -24px rgba(0,0,0,.9);
  --dur:160ms;
}

*{box-sizing:border-box}
[hidden]{display:none !important}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:
    radial-gradient(1200px 600px at 15% -10%, rgba(124,92,255,.10), transparent 60%),
    radial-gradient(900px 500px at 100% 0%, rgba(52,211,153,.05), transparent 55%),
    var(--bg);
  color:var(--text);
  font-family:var(--sans);
  font-size:16px;
  line-height:1.55;
  -webkit-font-smoothing:antialiased;
}
.wrap{width:100%;max-width:1140px;margin:0 auto;padding:0 var(--pad)}
h1,h2,h3,p,ul,ol,dl,dd,dt,figure{margin:0}
ul,ol{padding:0;list-style:none}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum" 1}

/* ---------------- top bar ---------------- */
.topbar{
  position:sticky;top:0;z-index:20;
  background:rgba(10,12,17,.82);
  backdrop-filter:saturate(140%) blur(10px);
  border-bottom:1px solid var(--line);
}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:56px}
.brand{display:flex;align-items:center;gap:10px;min-width:0}
.brand-mark{
  width:14px;height:14px;flex:none;border-radius:4px;
  background:linear-gradient(140deg,var(--accent),#4B3BA8);
  box-shadow:0 0 0 1px rgba(255,255,255,.10), 0 0 18px -2px var(--accent);
}
.brand-name{
  font-size:.9375rem;font-weight:650;letter-spacing:-.01em;
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
}
.topbar-note{
  display:flex;align-items:center;gap:7px;
  font-size:.75rem;color:var(--muted);letter-spacing:.01em;white-space:nowrap;
}
.dot-live{
  width:6px;height:6px;border-radius:50%;background:var(--ok);
  box-shadow:0 0 0 3px rgba(52,211,153,.15);
}

/* ---------------- first screen: the tool ---------------- */
.tool{
  display:grid;
  grid-template-columns:minmax(0,400px) minmax(0,1fr);
  gap:clamp(14px,1.8vw,20px);
  padding:clamp(18px,2.4vw,28px) 0 clamp(20px,2.4vw,30px);
  align-items:start;
}
.panel{
  background:linear-gradient(180deg,var(--surface),var(--bg-soft));
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  box-shadow:var(--shadow);
}
.panel-input{padding:var(--pad);display:flex;flex-direction:column;gap:16px}
.panel-stage{padding:var(--pad);display:flex;flex-direction:column;gap:14px;min-width:0}

/* fields */
.field{display:flex;flex-direction:column;gap:7px;min-width:0}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.label{
  font-family:var(--mono);font-size:.6875rem;letter-spacing:.10em;
  text-transform:uppercase;color:var(--muted-2);
}
.input{
  width:100%;font-family:inherit;font-size:.9375rem;color:var(--text);
  background:rgba(255,255,255,.035);
  border:1px solid var(--line);border-radius:var(--r-md);
  padding:11px 12px;outline:none;
  transition:border-color var(--dur) ease, box-shadow var(--dur) ease, background var(--dur) ease;
}
.input::placeholder{color:var(--muted-2)}
.input:hover{border-color:var(--line-2)}
.input:focus-visible{
  border-color:var(--accent-line);
  box-shadow:0 0 0 3px var(--accent-soft);
  background:rgba(255,255,255,.05);
}
.textarea{resize:vertical;min-height:88px;line-height:1.5}
.select{
  appearance:none;cursor:pointer;padding-right:34px;
  background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'><path d='M2 4.5 6 8.5l4-4' fill='none' stroke='%238B94A7' stroke-width='1.4' stroke-linecap='round' stroke-linejoin='round'/></svg>");
  background-repeat:no-repeat;background-position:right 12px center;
}
.select option{background:#12161F;color:var(--text)}
.field-foot{display:flex;align-items:baseline;justify-content:space-between;gap:12px}
.help{font-size:.75rem;color:var(--muted-2)}
.counter{font-family:var(--mono);font-size:.6875rem;color:var(--muted-2);font-variant-numeric:tabular-nums}
.counter.warn{color:var(--bad)}

/* segmented control */
.segmented{display:grid;grid-template-columns:repeat(3,1fr);gap:4px;padding:4px;
  background:rgba(255,255,255,.03);border:1px solid var(--line);border-radius:var(--r-md)}
.seg{
  appearance:none;cursor:pointer;font:inherit;font-size:.8125rem;color:var(--muted);
  background:transparent;border:0;border-radius:8px;padding:7px 4px;
  transition:background var(--dur) ease,color var(--dur) ease;
}
.seg:hover{color:var(--text)}
.seg.is-on{background:var(--accent-soft);color:#C9BCFF;box-shadow:0 0 0 1px var(--accent-line) inset}
.seg:focus-visible{outline:2px solid var(--accent-line);outline-offset:1px}

/* chips */
.chips{display:flex;flex-wrap:wrap;gap:8px}
.chip{
  appearance:none;cursor:pointer;font:inherit;font-size:.8125rem;color:var(--muted);
  background:rgba(255,255,255,.03);border:1px solid var(--line);
  border-radius:999px;padding:6px 12px;
  transition:border-color var(--dur) ease,color var(--dur) ease,background var(--dur) ease;
}
.chip:hover{border-color:var(--line-2);color:var(--text)}
.chip[aria-pressed="true"]{background:var(--accent-soft);border-color:var(--accent-line);color:#C9BCFF}
.chip:focus-visible{outline:2px solid var(--accent-line);outline-offset:2px}

/* buttons */
.btn{
  appearance:none;font:inherit;cursor:pointer;border-radius:var(--r-md);
  border:1px solid var(--line);background:rgba(255,255,255,.04);color:var(--text);
  padding:10px 14px;font-size:.875rem;font-weight:560;
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  transition:transform var(--dur) ease,background var(--dur) ease,border-color var(--dur) ease,opacity var(--dur) ease;
}
.btn:hover{border-color:var(--line-2);background:rgba(255,255,255,.07)}
.btn:active{transform:translateY(1px)}
.btn:focus-visible{outline:2px solid var(--accent-line);outline-offset:2px}
.btn:disabled{opacity:.42;cursor:not-allowed;transform:none}
.btn-primary{
  width:100%;padding:13px 16px;font-size:.9375rem;font-weight:620;
  background:linear-gradient(180deg,#8A6DFF,#6A4BF0);
  border-color:#8A6DFF;color:#fff;
  box-shadow:0 10px 26px -14px var(--accent), 0 1px 0 rgba(255,255,255,.22) inset;
}
.btn-primary:hover:not(:disabled){background:linear-gradient(180deg,#937AFF,#7154F5);border-color:#9A83FF}
.btn-label{white-space:nowrap}
.btn-hint{
  font-family:var(--mono);font-size:.6875rem;opacity:.72;
  border-left:1px solid rgba(255,255,255,.28);padding-left:8px;
}
.btn-ghost{padding:7px 11px;font-size:.8125rem}
.btn.busy{position:relative;color:transparent}
.btn.busy::after{
  content:"";position:absolute;inset:0;margin:auto;width:16px;height:16px;border-radius:50%;
  border:2px solid rgba(255,255,255,.35);border-top-color:#fff;animation:spin .7s linear infinite;
}
@keyframes spin{to{transform:rotate(360deg)}}

.status{font-size:.8125rem;color:var(--muted);min-height:1.3em}
.status.working{color:#C9BCFF}
.err{
  font-size:.8125rem;color:var(--bad);
  background:rgba(255,107,107,.08);border:1px solid rgba(255,107,107,.28);
  border-radius:var(--r-sm);padding:9px 11px;
}

/* ---------------- stage ---------------- */
.stage-head{display:flex;align-items:flex-start;justify-content:space-between;gap:12px}
.stage-title{min-width:0}
.game-title{font-size:1.0625rem;font-weight:640;letter-spacing:-.01em;
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.game-goal{font-size:.8125rem;color:var(--muted);margin-top:2px}
.stage-actions{display:flex;gap:8px;flex:none}

.screen{
  position:relative;border:1px solid var(--line);border-radius:var(--r-md);
  overflow:hidden;background:#07090D;aspect-ratio:16/10;
}
#canvas{display:block;width:100%;height:100%;touch-action:none}

.hud{
  position:absolute;left:0;right:0;top:0;
  display:grid;grid-template-columns:1.4fr .8fr .8fr .6fr;
  gap:1px;background:var(--line);
  border-bottom:1px solid var(--line);
}
.hud-cell{background:rgba(8,10,14,.82);backdrop-filter:blur(6px);padding:6px 9px;min-width:0}
.hud-k{display:block;font-family:var(--mono);font-size:.5625rem;letter-spacing:.10em;
  text-transform:uppercase;color:var(--muted-2)}
.hud-v{display:block;font-size:.75rem;font-weight:560;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.hud-bar{display:block;height:6px;margin-top:5px;border-radius:3px;background:rgba(255,255,255,.10);overflow:hidden}
.hud-bar i{display:block;height:100%;width:100%;background:var(--ok);transition:width 140ms linear,background 200ms ease}

.overlay{
  position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:6px;text-align:center;padding:20px;
  background:rgba(7,9,13,.80);backdrop-filter:blur(3px);
}
.overlay-kicker{font-family:var(--mono);font-size:.6875rem;letter-spacing:.12em;text-transform:uppercase;color:#A9B2C4}
.overlay-title{font-size:1.25rem;font-weight:660;letter-spacing:-.01em}
.overlay-text{font-size:.8125rem;color:var(--muted);max-width:34ch}
.overlay .btn{margin-top:8px;width:auto;padding:9px 16px;font-size:.875rem}

.stage-foot{display:flex;flex-direction:column;gap:8px}
.controls{font-family:var(--mono);font-size:.6875rem;color:var(--muted-2);letter-spacing:.01em}
.spec{display:flex;align-items:center;flex-wrap:wrap;gap:6px;font-size:.75rem;color:var(--muted)}
.spec-k{font-family:var(--mono);font-size:.625rem;letter-spacing:.10em;text-transform:uppercase;color:var(--muted-2);margin-right:2px}
.pill{
  display:inline-flex;align-items:center;
  font-family:var(--mono);font-size:.625rem;letter-spacing:.06em;text-transform:uppercase;
  padding:3px 8px;border-radius:999px;
  background:rgba(255,255,255,.05);border:1px solid var(--line);color:#C3CAD9;
}
.pill-src{background:var(--accent-soft);border-color:var(--accent-line);color:#C9BCFF}
.swatches{display:inline-flex;gap:3px;margin-left:2px}
.swatches i{width:11px;height:11px;border-radius:3px;box-shadow:0 0 0 1px rgba(255,255,255,.14)}

/* ---------------- prose ---------------- */
.prose{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:clamp(14px,1.8vw,20px);
  padding-bottom:clamp(28px,4vw,56px)}
.card{
  background:linear-gradient(180deg,rgba(255,255,255,.022),transparent);
  border:1px solid var(--line);border-radius:var(--r-lg);
  padding:var(--pad);
}
.card h2{font-size:1.0625rem;font-weight:640;letter-spacing:-.01em;margin-bottom:12px}
.card p{font-size:.875rem;color:#B9C1D0;margin-bottom:10px;max-width:62ch}
.card p:last-child{margin-bottom:0}
.card em{color:var(--text);font-style:normal;font-weight:560}
.list{display:flex;flex-direction:column;gap:9px}
.list li{
  position:relative;padding-left:16px;font-size:.875rem;color:#B9C1D0;max-width:64ch;
}
.list li::before{
  content:"";position:absolute;left:0;top:.62em;width:6px;height:6px;border-radius:2px;
  background:var(--accent);opacity:.75;
}
.list strong{color:var(--text);font-weight:600}
.faq{display:flex;flex-direction:column;gap:12px}
.faq dt{font-size:.875rem;font-weight:600;color:var(--text)}
.faq dd{font-size:.875rem;color:#B9C1D0;max-width:64ch}

/* ---------------- content pages (about / privacy / contact) ---------------- */
a{color:inherit;text-decoration:none}
.card a{color:#C9BCFF;text-decoration:underline;text-underline-offset:2px;text-decoration-thickness:1px}
.card a:hover{color:#E4DCFF}
.site-nav{display:flex;align-items:center;gap:16px;font-size:.8125rem;color:var(--muted);white-space:nowrap}
.site-nav a{transition:color var(--dur) ease}
.site-nav a:hover{color:var(--text)}
.site-nav a[aria-current="page"]{color:var(--text);font-weight:560}
.site-nav a:focus-visible{outline:2px solid var(--accent-line);outline-offset:3px;border-radius:4px}
.page-head{padding:clamp(26px,4.4vw,52px) 0 clamp(16px,2.4vw,26px);max-width:760px}
.page-head h1{font-size:clamp(1.5rem,3.4vw,2.125rem);font-weight:660;letter-spacing:-.02em;line-height:1.15}
.page-head p{margin-top:12px;font-size:.9375rem;color:var(--muted);max-width:64ch}
.prose.single{grid-template-columns:minmax(0,1fr);max-width:760px;padding-bottom:clamp(32px,5vw,64px)}
.prose.single .card p,.prose.single .card .list li{max-width:72ch}
.contact-box{
  margin:14px 0 14px;padding:14px 16px;
  background:var(--accent-soft);border:1px solid var(--accent-line);border-radius:var(--r-md);
}
.contact-box strong{font-family:var(--mono);font-size:.9375rem;letter-spacing:.01em;font-weight:600}
.contact-box a{color:#D6CCFF;text-decoration:none}
.contact-box a:hover{text-decoration:underline}

/* ---------------- footer ---------------- */
.footer{border-top:1px solid var(--line);padding:18px 0 28px}
.footer-inner{display:flex;flex-direction:column;gap:8px}
.footer-inner p{font-size:.75rem;color:var(--muted-2)}
.footer-links{display:flex;flex-wrap:wrap;gap:10px;font-size:.8125rem !important;color:var(--muted) !important}
.footer-links a{transition:color var(--dur) ease}
.footer-links a:hover{color:var(--text)}

/* ---------------- responsive ---------------- */
@media (max-width:960px){
  .tool{grid-template-columns:1fr}
  .prose{grid-template-columns:1fr}
  .stage-actions{flex-wrap:wrap}
}
@media (max-width:560px){
  .topbar-note{display:none}
  .site-nav{gap:11px;font-size:.75rem}
  .field-row{grid-template-columns:1fr}
  .hud{grid-template-columns:1fr 1fr;grid-auto-rows:auto}
  .hud-cell:nth-child(3){grid-column:1/2}
  .screen{aspect-ratio:4/3}
  .stage-head{flex-direction:column;align-items:stretch}
  .stage-actions .btn{flex:1}
  .btn-hint{display:none}
  .game-title{font-size:1rem}
}

/* ---------------- motion preferences ---------------- */
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;animation-iteration-count:1 !important;
    transition-duration:.001ms !important}
}