/* Shared design tokens and base components for index.html and admin.html.
   Page-specific rules stay inline in each page. */
:root{
  --bg:#f2f2f7; --bg-tint:#dfe6f5;
  --surface:rgba(255,255,255,.72); --surface-solid:#fff;
  --chrome:rgba(250,250,252,.72);
  --line:rgba(0,0,0,.09); --line-strong:rgba(0,0,0,.16);
  --text:#1c1c1e; --text-2:#6c6c70; --text-3:#a1a1a6;
  --accent:#0071e3; --accent-soft:rgba(0,113,227,.12);
  --good:#1c8f4b; --bad:#d1443b;
  --shadow:0 1px 2px rgba(0,0,0,.04), 0 12px 40px -12px rgba(0,0,0,.18);
  --radius:20px;
  --ease:cubic-bezier(.32,.72,0,1);      /* settles like a critically damped spring */
  --ease-out:cubic-bezier(.25,.46,.45,.94);
}
@media (prefers-color-scheme:dark){
  :root{
    --bg:#000; --bg-tint:#101a2e;
    --surface:rgba(28,28,30,.72); --surface-solid:#1c1c1e;
    --chrome:rgba(20,20,22,.72);
    --line:rgba(255,255,255,.10); --line-strong:rgba(255,255,255,.20);
    --text:#f5f5f7; --text-2:#98989d; --text-3:#636366;
    --accent:#0a84ff; --accent-soft:rgba(10,132,255,.18);
    --good:#30d158; --bad:#ff453a;
    --shadow:0 1px 2px rgba(0,0,0,.5), 0 16px 48px -12px rgba(0,0,0,.8);
  }
}
@media (prefers-reduced-transparency:reduce){
  :root{ --surface:var(--surface-solid); --chrome:var(--surface-solid); }
  .blur{ backdrop-filter:none !important; }
}
@media (prefers-contrast:more){
  :root{ --line:var(--line-strong); --text-2:var(--text); }
}

*{box-sizing:border-box; margin:0; padding:0}
[hidden]{display:none !important}   /* a class-level display: beats the UA rule otherwise */
html{-webkit-text-size-adjust:100%}
body{
  font:100%/1.5 -apple-system, BlinkMacSystemFont, "SF Pro Text", system-ui, "Segoe UI", sans-serif;
  color:var(--text); background:var(--bg); min-height:100svh;
  -webkit-font-smoothing:antialiased;
  background-image:radial-gradient(120% 80% at 50% -20%, var(--bg-tint) 0%, transparent 60%);
  background-attachment:fixed;
}
button,input,select{font:inherit; color:inherit}
button{background:none; border:0; cursor:pointer; -webkit-tap-highlight-color:transparent}

/* press feedback lands on pointer-down, never on release */
.press{transition:transform .1s var(--ease-out), opacity .1s var(--ease-out)}
.press:active{transform:scale(.97); opacity:.9}

.wrap{max-width:600px; margin:0 auto; padding:max(24px, env(safe-area-inset-top)) 20px 96px}
.view{display:none}
.view.on{display:block; animation:rise .45s var(--ease) both}
@keyframes rise{from{opacity:0; transform:translateY(10px)} to{opacity:1; transform:none}}

/* ---------- landing ---------- */
.hero{padding:14vh 0 34px; text-align:center}
.mark{width:56px; height:56px; margin:0 auto 22px; border-radius:17px;
  background:linear-gradient(160deg, var(--accent), color-mix(in oklab, var(--accent) 55%, #8e5cff));
  display:grid; place-items:center; box-shadow:var(--shadow)}
.mark svg{width:28px; height:28px; fill:none; stroke:#fff; stroke-width:1.8}
h1{font-size:clamp(2rem,7vw,2.75rem); line-height:1.05; letter-spacing:-.026em; font-weight:600}
.sub{margin-top:12px; color:var(--text-2); font-size:1.0625rem; letter-spacing:-.01em}

.card{background:var(--surface); border:1px solid var(--line); border-radius:var(--radius);
  box-shadow:var(--shadow); backdrop-filter:blur(24px) saturate(180%)}
.pad{padding:18px}

.field{display:flex; align-items:center; gap:2px; padding:14px 16px}
.field input{flex:1; min-width:0; border:0; outline:0; background:none; font-size:1.0625rem;
  letter-spacing:-.01em; font-weight:500}
.field input::placeholder{color:var(--text-3); font-weight:400}
.suffix{color:var(--text-2); font-size:1.0625rem; letter-spacing:-.01em; white-space:nowrap}
.hint{display:flex; align-items:center; gap:7px; min-height:20px; padding:0 17px 14px;
  font-size:.8125rem; color:var(--text-2); letter-spacing:-.003em}
.dot{width:7px; height:7px; border-radius:50%; background:var(--text-3); flex:none;
  transition:background .2s}
.hint.ok .dot{background:var(--good)} .hint.no .dot{background:var(--bad)}
.hint.ok{color:var(--good)} .hint.no{color:var(--bad)}

.btn{display:flex; align-items:center; justify-content:center; gap:8px; width:100%;
  padding:14px 20px; border-radius:14px; background:var(--accent); color:#fff;
  font-size:1.0625rem; font-weight:500; letter-spacing:-.01em; margin-top:14px}
.btn[disabled]{opacity:.4; cursor:default; transform:none}
.btn.ghost{background:var(--accent-soft); color:var(--accent)}
.btn.quiet{background:none; color:var(--text-2); font-size:.9375rem; padding:10px}
.spin{width:16px; height:16px; border:2px solid rgba(255,255,255,.35); border-top-color:#fff;
  border-radius:50%; animation:spin .7s linear infinite}
@keyframes spin{to{transform:rotate(1turn)}}

.mono{font-family:ui-monospace, SFMono-Regular, "SF Mono", Menlo, monospace; font-size:.875rem}
.copy{flex:none; padding:7px 12px; border-radius:9px; background:var(--accent-soft);
  color:var(--accent); font-size:.8125rem; font-weight:500}