:root {
  --bg: #f5f4ef;
  --bg-glow: #ecd9cc;
  --card: #ffffff;
  --border: #e3e0d6;
  --text: #1f1e1c;
  --muted: #6b675e;
  --accent: #c96442;
  --accent-hover: #b4553a;
  --accent-text: #ffffff;
  --input: #faf9f5;
  --danger: #b3261e;
  --danger-bg: #fbeceb;
  --focus: rgba(201, 100, 66, 0.28);
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #1f1e1c;
    --bg-glow: #3a2a22;
    --card: #2a2926;
    --border: #3d3b36;
    --text: #ecebe6;
    --muted: #a19d93;
    --accent: #d97757;
    --accent-hover: #e38a6c;
    --accent-text: #1f1e1c;
    --input: #1f1e1c;
    --danger: #f2b8b5;
    --danger-bg: #3b2322;
    --focus: rgba(217, 119, 87, 0.35);
    color-scheme: dark;
  }
}
* { box-sizing: border-box; }
html, body { height: 100%; margin: 0; }
body {
  background: radial-gradient(1200px 600px at 50% -10%, var(--bg-glow), transparent 60%), var(--bg);
  color: var(--text);
  font: 15px/1.5 ui-sans-serif, -apple-system, "Segoe UI", system-ui, Roboto, sans-serif;
  -webkit-font-smoothing: antialiased;
}
.wrap {
  min-height: 100%;
  display: grid;
  place-items: center;
  padding: max(24px, env(safe-area-inset-top)) 16px 24px;
}
.card {
  width: 100%;
  max-width: 400px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 32px 28px 24px;
  box-shadow: 0 1px 2px rgba(0,0,0,.04), 0 12px 40px rgba(0,0,0,.08);
}
.brand { display: flex; gap: 14px; align-items: center; margin-bottom: 28px; }
.brand img { flex: none; }
h1 { font-size: 22px; line-height: 1.2; margin: 0 0 2px; font-weight: 650; letter-spacing: -0.01em; }
.sub { margin: 0; color: var(--muted); font-size: 14px; }
.sub span { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 13px; }
label { display: block; font-weight: 550; font-size: 14px; margin-bottom: 6px; }
.field { position: relative; }
.field input {
  width: 100%;
  height: 48px;
  padding: 0 48px 0 14px;
  font: inherit;
  font-size: 16px;
  color: var(--text);
  background: var(--input);
  border: 1px solid var(--border);
  border-radius: 12px;
  outline: none;
  transition: border-color .15s, box-shadow .15s;
}
.field input:focus { border-color: var(--accent); box-shadow: 0 0 0 4px var(--focus); }
.field input.bad { border-color: var(--danger); }
.eye {
  position: absolute; right: 6px; top: 6px;
  width: 36px; height: 36px;
  display: grid; place-items: center;
  border: 0; border-radius: 8px;
  background: transparent; color: var(--muted); cursor: pointer;
}
.eye:hover { color: var(--text); background: var(--border); }
.hint { margin: 6px 0 0; font-size: 13px; color: var(--muted); }
.check { display: flex; gap: 10px; align-items: center; margin: 18px 0 0; font-weight: 400; color: var(--muted); cursor: pointer; }
.check input { width: 18px; height: 18px; accent-color: var(--accent); margin: 0; }
.error {
  margin: 16px 0 0;
  padding: 10px 12px;
  border-radius: 10px;
  background: var(--danger-bg);
  color: var(--danger);
  font-size: 14px;
}
.primary {
  position: relative;
  width: 100%;
  height: 48px;
  margin-top: 20px;
  border: 0;
  border-radius: 12px;
  background: var(--accent);
  color: var(--accent-text);
  font: inherit;
  font-weight: 600;
  font-size: 16px;
  cursor: pointer;
  transition: background .15s, transform .05s;
}
.primary:hover:not(:disabled) { background: var(--accent-hover); }
.primary:active:not(:disabled) { transform: translateY(1px); }
.primary:disabled { opacity: .6; cursor: default; }
.primary:focus-visible { outline: none; box-shadow: 0 0 0 4px var(--focus); }
.spinner {
  display: none;
  position: absolute; left: 50%; top: 50%;
  width: 20px; height: 20px; margin: -10px 0 0 -10px;
  border: 2px solid currentColor; border-right-color: transparent;
  border-radius: 50%;
  animation: spin .7s linear infinite;
}
.primary.loading .label { visibility: hidden; }
.primary.loading .spinner { display: block; }
.foot { margin: 20px 0 0; font-size: 12.5px; color: var(--muted); text-align: center; }
.foot code { font-size: 11.5px; background: var(--input); border: 1px solid var(--border); padding: 1px 5px; border-radius: 5px; overflow-wrap: anywhere; }
.shake { animation: shake .35s; }
@keyframes spin { to { transform: rotate(360deg); } }
@keyframes shake { 20%, 60% { transform: translateX(-6px); } 40%, 80% { transform: translateX(6px); } }
@media (prefers-reduced-motion: reduce) { .shake { animation: none; } }