:root {
  color-scheme: light;
  --bg: #ffffff;
  --card: #ffffff;
  --text: #1d1b22;
  --muted: #6e6a78;
  --border: #e4e0ea;
  --accent: #7c3aed;
  --accent-text: #ffffff;
  --ok: #15803d;
  --ok-tint: #dcfce7;
  --bad: #b91c1c;
  --bad-tint: #fee2e2;
  --idle: #6e6a78;
  --idle-tint: #ece9f1;
  font-family: system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
}


* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100dvh;
  background: var(--bg);
  color: var(--text);
  display: flex;
  justify-content: center;
  align-items: flex-start;
  padding: max(2rem, env(safe-area-inset-top)) 1rem 2rem;
}

#app {
  width: 100%;
  max-width: 26rem;
}

svg.icon {
  width: 1.25rem;
  height: 1.25rem;
  flex: none;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

header {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  margin: 0 0.25rem 1.25rem;
}

header img {
  width: 2rem;
  height: 2rem;
  border-radius: 0.5rem;
}

h1 {
  font-size: 1.35rem;
  margin: 0;
  letter-spacing: -0.01em;
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 1.25rem;
  padding: 1.25rem;
  box-shadow: 0 1px 2px rgb(0 0 0 / 0.04), 0 8px 24px rgb(0 0 0 / 0.04);
}

.host {
  display: flex;
  align-items: center;
  gap: 0.9rem;
}

.host-icon {
  display: grid;
  place-items: center;
  width: 3.25rem;
  height: 3.25rem;
  border-radius: 1rem;
  background: var(--tint);
  color: var(--tone);
  transition: background 0.2s, color 0.2s;
}

.host-icon svg.icon {
  width: 1.6rem;
  height: 1.6rem;
}

.host-text {
  flex: 1;
  min-width: 0;
}

.host-name {
  margin: 0;
  font-weight: 600;
  font-size: 1.05rem;
}

#reachability-status {
  margin: 0.15rem 0 0;
  display: flex;
  align-items: center;
  gap: 0.4rem;
  color: var(--tone);
  font-weight: 600;
}

#reachability-status::before {
  content: '';
  width: 0.5rem;
  height: 0.5rem;
  border-radius: 50%;
  background: currentColor;
}

.card[data-state='checking'] {
  --tone: var(--idle);
  --tint: var(--idle-tint);
}

.card[data-state='reachable'] {
  --tone: var(--ok);
  --tint: var(--ok-tint);
}

.card[data-state='unreachable'] {
  --tone: var(--bad);
  --tint: var(--bad-tint);
}

.card[data-state='checking'] #reachability-status::before {
  animation: pulse 1s ease-in-out infinite;
}

#last-checked {
  margin: 0.15rem 0 0;
  font-size: 0.85rem;
  color: var(--muted);
}

button {
  font: inherit;
  cursor: pointer;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text);
  border-radius: 0.85rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  min-height: 3rem;
  padding: 0 1rem;
  font-weight: 600;
  -webkit-tap-highlight-color: transparent;
  transition: transform 0.1s, opacity 0.2s, background 0.2s;
}

button:active:not(:disabled) {
  transform: scale(0.97);
}

button:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

button:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

#refresh-button {
  min-height: 2.75rem;
  width: 2.75rem;
  padding: 0;
  color: var(--muted);
}

#refresh-button[aria-busy='true'] svg.icon {
  animation: spin 0.9s linear infinite;
}

.actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.6rem;
  margin-top: 1.25rem;
}

#wake-button {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--accent-text);
}

#action-error {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
  margin: 1rem 0 0;
  padding: 0.75rem 0.85rem;
  border-radius: 0.85rem;
  background: var(--bad-tint);
  color: var(--bad);
  font-size: 0.9rem;
  font-weight: 600;
}

#action-error[hidden] {
  display: none;
}

footer {
  margin-top: 1rem;
  text-align: center;
  font-size: 0.8rem;
  color: var(--muted);
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

@keyframes pulse {
  50% {
    opacity: 0.3;
  }
}

@media (prefers-reduced-motion: reduce) {
  * {
    animation: none !important;
    transition: none !important;
  }
}