:root {
  color-scheme: light;
  --bg: #f4efe8;
  --panel: #fffaf4;
  --text: #1f2933;
  --muted: #52606d;
  --accent: #d94841;
  --accent-strong: #a61b14;
  --ok: #1f7a54;
  --border: #d9cfc3;
  --shadow: 0 18px 40px rgba(59, 43, 24, 0.12);
  --radius: 18px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Trebuchet MS", "Segoe UI", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(217, 72, 65, 0.16), transparent 24rem),
    linear-gradient(180deg, #f9f2e8 0%, var(--bg) 100%);
}

.app-shell {
  width: min(960px, calc(100% - 2rem));
  margin: 0 auto;
  padding: 3rem 0 4rem;
}

.hero,
.panel {
  background: color-mix(in srgb, var(--panel) 94%, white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.hero {
  padding: 2rem;
  margin-bottom: 1.25rem;
}

.eyebrow {
  margin: 0 0 0.75rem;
  font-size: 0.9rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent-strong);
}

h1,
h2,
p {
  margin-top: 0;
}

.intro,
#status-text {
  color: var(--muted);
}

.panel {
  padding: 1.5rem;
  margin-bottom: 1.25rem;
}

.controls {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 0.9rem;
}

button {
  appearance: none;
  border: 0;
  border-radius: 999px;
  padding: 0.95rem 1.1rem;
  font: inherit;
  font-weight: 700;
  color: white;
  background: linear-gradient(135deg, var(--accent), var(--accent-strong));
  cursor: pointer;
  transition: transform 140ms ease, box-shadow 140ms ease;
  box-shadow: 0 10px 24px rgba(166, 27, 20, 0.22);
}

button:hover,
button:focus-visible {
  transform: translateY(-1px);
  box-shadow: 0 14px 30px rgba(166, 27, 20, 0.28);
}

.status-panel {
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: 1rem;
  align-items: center;
}

.state-card {
  padding: 1.25rem;
  border-radius: 20px;
  border: 2px solid #cdd5df;
  background: linear-gradient(180deg, #ffffff, #eef2f7);
}

.state-badge {
  display: inline-block;
  margin-bottom: 0.8rem;
  padding: 0.35rem 0.6rem;
  border-radius: 999px;
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--ok);
  background: rgba(31, 122, 84, 0.14);
}

.state-card.is-alert {
  border-color: #8b0d0d;
  background:
    linear-gradient(135deg, rgba(139, 13, 13, 0.92), rgba(245, 101, 101, 0.92)),
    repeating-linear-gradient(-45deg, rgba(255, 255, 255, 0.18) 0 12px, transparent 12px 24px);
  color: white;
  transform: rotate(-1deg) scale(1.02);
}

.state-card.is-alert .state-badge {
  color: #8b0d0d;
  background: #fff1f1;
}

.event-log {
  margin: 0;
  padding-left: 1.25rem;
  color: var(--muted);
}

.event-log li + li {
  margin-top: 0.45rem;
}

@media (max-width: 720px) {
  .app-shell {
    width: min(100% - 1rem, 960px);
    padding-top: 1rem;
  }

  .hero,
  .panel {
    padding: 1.1rem;
  }

  .status-panel {
    grid-template-columns: 1fr;
  }
}