:root {
  --bg:           #111827;
  --surface:      #1f2937;
  --surface2:     #263040;
  --border:       #374151;
  --text:         #f3f4f6;
  --text-muted:   #9ca3af;
  --accent:       #8b5cf6;
  --accent-hover: #7c3aed;
  --success:      #10b981;
  --warning:      #f59e0b;
  --danger:       #ef4444;
  --radius:       12px;
  --shadow:       0 2px 8px rgba(0,0,0,.4);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 16px; -webkit-text-size-adjust: 100%; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: system-ui, -apple-system, sans-serif;
  line-height: 1.5;
  min-height: 100dvh;
  overscroll-behavior: none;
}

#app { display: flex; flex-direction: column; min-height: 100dvh; }

/* ── Loading ── */
#view-loading {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  min-height: 100dvh;
  color: var(--text-muted);
}

.spinner {
  width: 36px; height: 36px;
  border: 3px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin .8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ── Error ── */
#view-error {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100dvh;
  padding: 2rem;
}
.error-card {
  text-align: center;
  background: var(--surface);
  border-radius: var(--radius);
  padding: 2rem;
  max-width: 360px;
  box-shadow: var(--shadow);
}
.error-icon { font-size: 2.5rem; margin-bottom: .75rem; }
.error-card h2 { margin-bottom: .5rem; }
.error-card p { color: var(--text-muted); }

/* ── Status Bar ── */
#status-bar {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  padding: 1rem 1.25rem .75rem;
  display: flex;
  flex-direction: column;
  gap: .4rem;
}
.status-top {
  display: flex;
  align-items: center;
  gap: .5rem;
  flex-wrap: wrap;
}
.label-muted { color: var(--text-muted); font-size: .85rem; }
.wearer-name { font-weight: 600; font-size: 1.05rem; flex: 1; }
.keyholder-row { display: flex; align-items: center; gap: .5rem; font-size: .85rem; }
.keyholder-name { font-weight: 500; }

/* ── Badges ── */
.badge {
  font-size: .75rem;
  font-weight: 600;
  padding: .2rem .55rem;
  border-radius: 999px;
  text-transform: uppercase;
  letter-spacing: .03em;
  white-space: nowrap;
}
.badge-offline { background: rgba(239,68,68,.2);  color: var(--danger);  border: 1px solid rgba(239,68,68,.4); }
.badge-warning { background: rgba(245,158,11,.2); color: var(--warning); border: 1px solid rgba(245,158,11,.4); }
.badge-success { background: rgba(16,185,129,.2); color: var(--success); border: 1px solid rgba(16,185,129,.4); }

/* ── Offline Banner ── */
.offline-banner {
  background: rgba(239,68,68,.1);
  border-bottom: 1px solid rgba(239,68,68,.25);
  color: var(--danger);
  font-size: .875rem;
  padding: .6rem 1.25rem;
  text-align: center;
}

/* ── Read-only Banner ── */
.readonly-banner {
  background: rgba(139,92,246,.1);
  border-bottom: 1px solid rgba(139,92,246,.3);
  color: #a78bfa;
  font-size: .875rem;
  padding: .6rem 1.25rem;
  text-align: center;
}

/* ── Controls ── */
#controls {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  padding: 1.5rem 1.25rem;
  max-width: 480px;
  width: 100%;
  margin: 0 auto;
}

.btn-group {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: .75rem;
}
.btn-group-shock {
  grid-template-columns: 1fr 1fr 1fr;
}

/* ── Shock Buttons ── */
.shock-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: .35rem;
  padding: 1.1rem .75rem;
  border: none;
  border-radius: var(--radius);
  cursor: pointer;
  font-family: inherit;
  font-size: .95rem;
  font-weight: 600;
  transition: transform .1s, opacity .15s, filter .15s;
  user-select: none;
  -webkit-tap-highlight-color: transparent;
}
.shock-btn:active:not(:disabled) { transform: scale(.96); }
.shock-btn:disabled {
  opacity: .35;
  cursor: not-allowed;
  filter: grayscale(.4);
}
.shock-btn.loading { opacity: .6; cursor: wait; }

.btn-icon { font-size: 1.4rem; }
.btn-label { font-size: .85rem; letter-spacing: .02em; }

.btn-vibrate {
  background: linear-gradient(135deg, #1e40af, #2563eb);
  color: #fff;
}
.btn-vibrate:hover:not(:disabled) { background: linear-gradient(135deg, #1d3a9e, #1e56d9); }

.btn-sound {
  background: linear-gradient(135deg, #065f46, #059669);
  color: #fff;
}
.btn-sound:hover:not(:disabled) { background: linear-gradient(135deg, #064e3b, #047857); }

.btn-shock1 {
  background: linear-gradient(135deg, #7c3aed, #8b5cf6);
  color: #fff;
}
.btn-shock1:hover:not(:disabled) { background: linear-gradient(135deg, #6d28d9, #7c3aed); }

.btn-shock2 {
  background: linear-gradient(135deg, #9d174d, #ec4899);
  color: #fff;
}
.btn-shock2:hover:not(:disabled) { background: linear-gradient(135deg, #831843, #db2777); }

.btn-shock3 {
  background: linear-gradient(135deg, #7f1d1d, #ef4444);
  color: #fff;
}
.btn-shock3:hover:not(:disabled) { background: linear-gradient(135deg, #6b1d1d, #dc2626); }

/* ── Anti-AFK Section ── */
.afk-section {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: .9rem 1rem;
  display: flex;
  flex-direction: column;
  gap: .6rem;
}
.afk-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.afk-label {
  font-weight: 600;
  font-size: .95rem;
}
.afk-interval-row {
  display: flex;
  align-items: center;
  gap: .5rem;
  font-size: .875rem;
}
.afk-input {
  width: 56px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text);
  font-size: .9rem;
  padding: .25rem .4rem;
  text-align: center;
}
.afk-current {
  flex: 1;
  color: var(--text-muted);
  font-size: .85rem;
  padding-left: .5rem;
}
.afk-input:focus { outline: none; border-color: var(--accent); }
.afk-apply-btn {
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: 6px;
  padding: .25rem .65rem;
  font-size: .85rem;
  font-weight: 600;
  cursor: pointer;
  transition: background .15s, opacity .15s;
}
.afk-apply-btn:hover { background: var(--accent-hover); }
.afk-apply-btn.saved { background: var(--success); }

/* Toggle switch */
.toggle { position: relative; display: inline-block; width: 42px; height: 24px; cursor: pointer; }
.toggle input { opacity: 0; width: 0; height: 0; }
.toggle-track {
  position: absolute; inset: 0;
  background: var(--border);
  border-radius: 999px;
  transition: background .2s;
}
.toggle-track::before {
  content: '';
  position: absolute;
  width: 18px; height: 18px;
  left: 3px; top: 3px;
  background: #fff;
  border-radius: 50%;
  transition: transform .2s;
}
.toggle input:checked + .toggle-track { background: var(--accent); }
.toggle input:checked + .toggle-track::before { transform: translateX(18px); }

/* ── Toast ── */
.toast {
  position: fixed;
  bottom: 1.5rem;
  left: 50%;
  transform: translateX(-50%) translateY(4rem);
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: .6rem 1.25rem;
  font-size: .875rem;
  font-weight: 500;
  white-space: nowrap;
  box-shadow: var(--shadow);
  opacity: 0;
  transition: opacity .2s, transform .2s;
  pointer-events: none;
  z-index: 999;
}
.toast.visible {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}
.toast-success { color: var(--success); }
.toast-error   { color: var(--danger); }

/* ── Shock flash feedback ── */
@keyframes flash {
  0%   { background: rgba(139,92,246,.08); }
  50%  { background: rgba(139,92,246,.22); }
  100% { background: var(--bg); }
}
body.shock-flash { animation: flash .5s ease-out; }

/* ── Utility ── */
.hidden { display: none !important; }