/* ============================================================
   70 Labs — shared design system
   Dark, holographic, glassmorphic. Mobile-first.
   ============================================================ */
:root{
  --bg:#05060a;
  --bg-2:#0a0d16;
  --panel:rgba(255,255,255,.04);
  --panel-2:rgba(255,255,255,.06);
  --stroke:rgba(255,255,255,.10);
  --stroke-2:rgba(255,255,255,.18);
  --ink:#eaf0ff;
  --ink-dim:#9aa6c4;
  --ink-faint:#5d6788;
  --brand:#7c5cff;     /* violet */
  --brand-2:#19e3ff;   /* cyan */
  --brand-3:#ff4d9d;   /* pink */
  --ok:#3ddc97;
  --warn:#ffcf5c;
  --err:#ff5d6c;
  --radius:18px;
  --radius-sm:12px;
  --shadow:0 10px 40px rgba(0,0,0,.45);
  --font:'Space Grotesk',ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,sans-serif;
  --mono:ui-monospace,'SF Mono',SFMono-Regular,Menlo,Consolas,monospace;
}

*{box-sizing:border-box}
html,body{margin:0;padding:0}
html{-webkit-text-size-adjust:100%}
body{
  font-family:var(--font);
  color:var(--ink);
  background:var(--bg);
  background-image:
    radial-gradient(1200px 800px at 12% -10%, rgba(124,92,255,.18), transparent 60%),
    radial-gradient(1000px 700px at 110% 0%, rgba(25,227,255,.12), transparent 55%),
    radial-gradient(900px 600px at 50% 120%, rgba(255,77,157,.10), transparent 60%);
  min-height:100dvh;
  line-height:1.5;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
a{color:var(--brand-2);text-decoration:none}
img{max-width:100%}

/* grain + scanline vibe */
body::before{
  content:"";position:fixed;inset:0;pointer-events:none;z-index:0;opacity:.04;
  background-image:repeating-linear-gradient(0deg,#fff 0 1px,transparent 1px 3px);
  mix-blend-mode:overlay;
}

.wrap{max-width:1080px;margin:0 auto;padding:20px 18px 64px;position:relative;z-index:1}
.wrap-narrow{max-width:720px}

/* ---- top bar / back ---- */
.topbar{display:flex;align-items:center;gap:12px;padding:14px 0 22px}
.brandmark{display:flex;align-items:center;gap:10px;font-weight:700;letter-spacing:.5px}
.brandmark .dot{
  width:34px;height:34px;border-radius:10px;display:grid;place-items:center;font-size:13px;
  background:conic-gradient(from 210deg,var(--brand),var(--brand-2),var(--brand-3),var(--brand));
  box-shadow:0 0 24px rgba(124,92,255,.6);color:#04050a;font-weight:800
}
.back{
  margin-left:auto;display:inline-flex;align-items:center;gap:7px;font-size:13px;
  color:var(--ink-dim);padding:9px 14px;border:1px solid var(--stroke);border-radius:999px;
  background:var(--panel);backdrop-filter:blur(8px)
}
.back:hover{border-color:var(--stroke-2);color:var(--ink)}

/* ---- headings ---- */
.eyebrow{font-size:12px;letter-spacing:3px;text-transform:uppercase;color:var(--brand-2);font-weight:600}
h1.app{font-size:clamp(26px,6vw,40px);margin:.2em 0 .15em;line-height:1.05;letter-spacing:-.5px}
.lede{color:var(--ink-dim);max-width:60ch;margin:0 0 22px}
.grad{background:linear-gradient(100deg,var(--brand),var(--brand-2) 55%,var(--brand-3));-webkit-background-clip:text;background-clip:text;color:transparent}

/* ---- glass card / panel ---- */
.card,.panel{
  background:linear-gradient(180deg,var(--panel-2),var(--panel));
  border:1px solid var(--stroke);border-radius:var(--radius);
  box-shadow:var(--shadow);backdrop-filter:blur(14px);
}
.panel{padding:18px}
.stack{display:grid;gap:14px}
.row{display:flex;gap:12px;flex-wrap:wrap}
.row.tight{gap:8px}
.spread{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap}

/* ---- form controls ---- */
label.field{display:block;font-size:13px;color:var(--ink-dim);margin-bottom:6px;font-weight:500}
input[type=text],input[type=number],input[type=url],input[type=search],select,textarea{
  width:100%;background:rgba(0,0,0,.35);border:1px solid var(--stroke);color:var(--ink);
  border-radius:var(--radius-sm);padding:12px 14px;font:inherit;font-size:15px;outline:none;
  transition:border-color .15s,box-shadow .15s;
}
textarea{min-height:96px;resize:vertical;line-height:1.5}
input:focus,select,textarea:focus,select:focus{border-color:var(--brand);box-shadow:0 0 0 3px rgba(124,92,255,.18)}
select{appearance:none;background-image:linear-gradient(45deg,transparent 50%,var(--ink-dim) 50%),linear-gradient(135deg,var(--ink-dim) 50%,transparent 50%);background-position:calc(100% - 18px) center,calc(100% - 13px) center;background-size:5px 5px,5px 5px;background-repeat:no-repeat}
.hint{font-size:12px;color:var(--ink-faint);margin-top:6px}

/* ---- buttons ---- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;cursor:pointer;
  font:inherit;font-weight:600;font-size:15px;border-radius:var(--radius-sm);
  padding:12px 18px;border:1px solid var(--stroke-2);color:var(--ink);
  background:var(--panel-2);transition:transform .08s,border-color .15s,background .15s;user-select:none;
}
.btn:hover{border-color:var(--brand)}
.btn:active{transform:translateY(1px)}
.btn.primary{
  border:none;color:#06070d;font-weight:700;
  background:linear-gradient(100deg,var(--brand),var(--brand-2));
  box-shadow:0 8px 26px rgba(25,227,255,.25);
}
.btn.primary:hover{filter:brightness(1.06)}
.btn.ghost{background:transparent}
.btn.pink{background:linear-gradient(100deg,var(--brand-3),var(--brand));color:#fff;border:none}
.btn:disabled{opacity:.5;cursor:not-allowed}
.btn.block{width:100%}
.btn.sm{padding:8px 12px;font-size:13px}

/* chips */
.chips{display:flex;gap:8px;flex-wrap:wrap}
.chip{
  padding:8px 13px;border-radius:999px;border:1px solid var(--stroke);background:var(--panel);
  font-size:13px;color:var(--ink-dim);cursor:pointer;transition:.15s;white-space:nowrap;
}
.chip[aria-pressed=true],.chip.active{background:rgba(124,92,255,.2);border-color:var(--brand);color:#fff}

/* output / code */
.out{white-space:pre-wrap;word-break:break-word;font-family:var(--mono);font-size:14px;color:var(--ink);background:rgba(0,0,0,.4);border:1px solid var(--stroke);border-radius:var(--radius-sm);padding:14px}
.muted{color:var(--ink-dim)}
.mono{font-family:var(--mono)}
.tag{display:inline-block;font-size:11px;letter-spacing:.5px;text-transform:uppercase;color:var(--brand-2);border:1px solid var(--stroke);border-radius:999px;padding:3px 9px}

/* loader */
.spinner{width:18px;height:18px;border-radius:50%;border:2px solid rgba(255,255,255,.25);border-top-color:#fff;animation:spin .7s linear infinite;display:inline-block}
@keyframes spin{to{transform:rotate(360deg)}}
.toast{position:fixed;left:50%;bottom:24px;transform:translateX(-50%) translateY(20px);opacity:0;background:rgba(20,24,38,.95);border:1px solid var(--stroke-2);color:var(--ink);padding:11px 18px;border-radius:999px;font-size:14px;z-index:50;transition:.25s;box-shadow:var(--shadow)}
.toast.show{opacity:1;transform:translateX(-50%) translateY(0)}

/* footer */
.foot{margin-top:40px;padding-top:18px;border-top:1px solid var(--stroke);color:var(--ink-faint);font-size:13px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:8px}

/* small helpers */
.center{text-align:center}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
@media(max-width:560px){.grid2,.grid3{grid-template-columns:1fr}}
canvas{display:block;max-width:100%}
.hidden{display:none!important}