:root {
  --bg: #f6f3ee;
  --surface: #ffffff;
  --surface-2: #efebe4;
  --text: #1c1a17;
  --muted: #6d675e;
  --line: #e3ddd3;
  --accent: #d9481f;
  --accent-ink: #ffffff;
  --ok: #1f8a4c;
  --ok-ink: #ffffff;
  --warn: #b7770a;
  --danger: #b3261e;
  --radius: 16px;
  --shadow: 0 1px 2px rgb(0 0 0 / 0.04), 0 4px 16px rgb(0 0 0 / 0.04);
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #141311;
    --surface: #1e1c19;
    --surface-2: #29261f;
    --text: #f3efe8;
    --muted: #a59f95;
    --line: #34302a;
    --accent: #f06a3f;
    --shadow: none;
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}
main { max-width: 480px; margin: 0 auto; padding: 24px 16px 48px; }
main.wide { max-width: 1040px; }

h1 { font-size: 1.6rem; line-height: 1.2; margin: 0 0 4px; letter-spacing: -0.01em; }
h2 { font-size: 1.05rem; margin: 0 0 12px; }
p { margin: 0 0 12px; }
a { color: var(--accent); }

.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 20px;
  margin-bottom: 16px;
  box-shadow: var(--shadow);
}
.muted { color: var(--muted); }
.small { font-size: 0.875rem; }
.center { text-align: center; }
.error { color: var(--danger); }
.stack > * + * { margin-top: 12px; }

label { display: block; font-weight: 600; margin: 14px 0 6px; }
input, select {
  width: 100%;
  font: inherit;
  padding: 12px 14px;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: var(--bg);
  color: var(--text);
}
input:focus, select:focus { outline: 2px solid var(--accent); outline-offset: 1px; }
.check { display: flex; gap: 10px; align-items: center; font-weight: 500; margin: 12px 0; }
.check input { width: 20px; height: 20px; accent-color: var(--accent); }

button, .btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font: inherit;
  font-weight: 600;
  padding: 12px 18px;
  min-height: 44px;
  border-radius: 12px;
  border: 1px solid transparent;
  background: var(--accent);
  color: var(--accent-ink);
  cursor: pointer;
  text-decoration: none;
}
button:disabled { opacity: 0.5; cursor: default; }
.btn.secondary, button.secondary { background: transparent; color: var(--text); border-color: var(--line); }
.btn.ok, button.ok { background: var(--ok); color: var(--ok-ink); }
button.ghost { background: none; color: var(--muted); border: none; }
button.small, .btn.small { padding: 6px 12px; min-height: 36px; font-size: 0.875rem; border-radius: 10px; }
.block { width: 100%; }

.big-number { font-size: 5rem; font-weight: 800; line-height: 1; letter-spacing: -0.04em; margin: 8px 0 12px; }
.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); gap: 12px; }
.stat { background: var(--surface-2); border-radius: 12px; padding: 12px 14px; }
.stat .label { font-size: 0.8rem; color: var(--muted); }
.stat .value { font-size: 1.4rem; font-weight: 700; }

.pill {
  display: inline-block;
  padding: 2px 10px;
  border-radius: 999px;
  font-size: 0.8rem;
  font-weight: 600;
  background: var(--surface-2);
  color: var(--muted);
}
.pill.ok { background: color-mix(in srgb, var(--ok) 15%, transparent); color: var(--ok); }
.pill.warn { background: color-mix(in srgb, var(--warn) 18%, transparent); color: var(--warn); }

.status-dot { display: inline-block; width: 8px; height: 8px; border-radius: 50%; background: var(--ok); margin-right: 6px; }
.status-dot.off { background: var(--warn); }

@keyframes pulse { from { filter: brightness(1); } to { filter: brightness(1.2); } }