/* Power panel — phone-first, semantic tokens only in components. */
:root {
  --bg: #0e1216;
  --bg-raised: #161c22;
  --card: #1a2129;
  --card-border: #2c3641;
  --ink: #f2f5f7;
  --ink-muted: #c3ccd5;
  --ink-faint: #a7b2bd;
  --field-bg: #0b0f13;
  --field-border: #33404d;
  --accent: #35c37d;
  --accent-ink: #062013;
  --accent-strong: #4be08f;
  --danger: #ff8f8f;
  --danger-bg: #2a1518;
  --warn-bg: #2a2111;
  --warn-ink: #ffd9a0;
  --ok-bg: #0f2a1d;
  --ok-ink: #b8f0cf;
  --focus: #8fd6ff;
  --radius-lg: 16px;
  --radius-md: 12px;
  --space-1: 8px;
  --space-2: 16px;
  --space-3: 24px;
  --tap: 48px;
  color-scheme: dark;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 16px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  touch-action: manipulation;
}

.wrap {
  max-width: 420px;
  margin: 0 auto;
  padding: var(--space-2) var(--space-2) calc(var(--space-3) + env(safe-area-inset-bottom, 0px));
  padding-top: calc(var(--space-2) + env(safe-area-inset-top, 0px));
  padding-left: calc(var(--space-2) + env(safe-area-inset-left, 0px));
  padding-right: calc(var(--space-2) + env(safe-area-inset-right, 0px));
  display: grid;
  gap: var(--space-2);
  overflow-x: clip;
}

.head h1 { font-size: 22px; line-height: 1.25; margin: 4px 0 4px; }
.sub { margin: 0; color: var(--ink-muted); font-size: 14px; }
.card-title { font-size: 17px; margin: 0; }

.card {
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-lg);
  padding: var(--space-2);
  display: grid;
  gap: var(--space-2);
  min-width: 0;
}

.field { display: grid; gap: var(--space-1); font-size: 15px; color: var(--ink); }

input {
  width: 100%;
  min-height: var(--tap);
  font-size: 17px;
  border-radius: var(--radius-md);
  border: 1px solid var(--field-border);
  padding: 12px 14px;
  background: var(--field-bg);
  color: var(--ink);
  touch-action: manipulation;
}
input::placeholder { color: var(--ink-faint); opacity: 1; }

/* ---- buttons: single primary CTA + subordinate ---- */
.btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  width: 100%;
  min-height: var(--tap);
  font-size: 17px;
  font-weight: 600;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  padding: 12px 16px;
  cursor: pointer;
  touch-action: manipulation;
  user-select: none;
  -webkit-tap-highlight-color: transparent;
  transition: transform 80ms ease-out, background-color 120ms ease-out, filter 120ms ease-out;
}
.btn-primary {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--accent-ink);
  min-height: 56px;
}
/* power: THE primary CTA */
.btn-power {
  flex-direction: column;
  gap: 4px;
  min-height: 112px;
  background: var(--accent);
  border-color: var(--accent-strong);
  color: var(--accent-ink);
  position: relative;
}
.btn-power .power-top { font-size: 20px; font-weight: 800; line-height: 1.25; text-align: center; }
.btn-power .power-sub { font-size: 14px; font-weight: 500; opacity: 0.85; }
/* explicit ON/OFF separation */
.btn-power[data-state="on"] { background: var(--accent); }
.btn-power[data-state="off"] { background: var(--bg-raised); color: var(--ink); border: 2px solid var(--accent); }
.btn-power[data-state="unknown"] { background: var(--bg-raised); color: var(--ink); border: 2px dashed var(--ink-faint); }

/* instant press feedback (<100ms): scale .97 + state layer */
.btn:active { transform: scale(0.97); }
.btn-primary:active, .btn-power:active { filter: brightness(0.92); }
.btn-logout:active { background: var(--bg-raised); }

/* subordinate logout: full-width 48px hitbox, visually quiet */
.btn-logout {
  background: transparent;
  color: var(--ink-muted);
  border: 1px solid var(--card-border);
  min-height: var(--tap);
  font-weight: 500;
}

/* disabled + busy */
.btn[disabled] { opacity: 0.65; cursor: not-allowed; transform: none; }
.btn[aria-busy="true"] { cursor: progress; }
.btn[aria-busy="true"] .power-sub { opacity: 1; }

/* visible focus rings 2-4px */
.btn:focus-visible, input:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 2px;
}

/* ---- status: dot + TEXT, never color-only ---- */
.status {
  display: flex;
  align-items: center;
  gap: 12px;
  background: var(--field-bg);
  border: 1px solid var(--field-border);
  border-radius: var(--radius-md);
  padding: 12px 14px;
  min-height: 64px;
}
.status-text { display: grid; gap: 2px; min-width: 0; }
.badge { font-size: 15px; font-weight: 700; }
.lwt-line { font-size: 14px; color: var(--ink-muted); }
.dot { display: block; width: 16px; height: 16px; border-radius: 50%; background: var(--ink-faint); border: 2px solid var(--ink-faint); flex: none; }
.dot.on { background: var(--accent); border-color: var(--accent-strong); }
.dot.off { background: var(--danger); border-color: var(--danger); }

.power-block { display: grid; gap: var(--space-1); }
.state-line { margin: 0; font-size: 15px; color: var(--ink-muted); }
.state-line strong { color: var(--ink); }
.state-line strong[data-state="on"] { color: var(--accent-strong); }
.state-line strong[data-state="off"] { color: var(--ink); }
.hint { margin: 0; font-size: 13px; color: var(--ink-faint); }

.meta-list { display: grid; gap: var(--space-1); margin: 0; }
.meta-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 12px;
  font-size: 14px;
  color: var(--ink-muted);
  border-top: 1px solid var(--card-border);
  padding-top: var(--space-1);
  min-width: 0;
}
.meta-row dd { margin: 0; color: var(--ink); min-width: 0; overflow-wrap: anywhere; }
.meta-row code { font-size: 14px; }

.err {
  margin: 0;
  font-size: 15px;
  color: var(--danger);
  background: var(--danger-bg);
  border: 1px solid var(--danger);
  border-radius: var(--radius-md);
  padding: 12px 14px;
  min-height: var(--tap);
  display: flex;
  align-items: center;
}

/* toast: success/error with aria-live */
.toast {
  position: sticky;
  bottom: calc(12px + env(safe-area-inset-bottom, 0px));
  border-radius: var(--radius-md);
  padding: 14px 16px;
  font-size: 15px;
  font-weight: 600;
  min-height: var(--tap);
  display: flex;
  align-items: center;
  border: 1px solid var(--card-border);
  background: var(--bg-raised);
  color: var(--ink);
}
.toast[data-state="success"] { background: var(--ok-bg); color: var(--ok-ink); border-color: var(--accent); }
.toast[data-state="error"] { background: var(--danger-bg); color: var(--danger); border-color: var(--danger); }
.toast[hidden] { display: none; }

/* spinner */
.spinner {
  width: 20px;
  height: 20px;
  flex: none;
  border-radius: 50%;
  border: 3px solid currentColor;
  border-top-color: transparent;
  opacity: 0.9;
  animation: spin 0.8s linear infinite;
}
.spinner[hidden] { display: none; }
.spinner-on-btn { position: absolute; top: 10px; right: 12px; width: 18px; height: 18px; }
@keyframes spin { to { transform: rotate(360deg); } }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none; transition: none; }
  .btn:active { transform: none; }
  .spinner { animation: none; border-top-color: currentColor; opacity: 0.6; }
}

/* 375px: no horizontal scroll */
@media (max-width: 380px) {
  .wrap { padding-left: 12px; padding-right: 12px; }
  .btn-power .power-top { font-size: 18px; }
  .meta-row { font-size: 13px; }
}