:root {
  --bg: #f4ede1;
  --panel: rgba(255, 250, 242, 0.88);
  --panel-strong: #fff8ee;
  --text: #1d1a17;
  --muted: #60544b;
  --accent: #0f766e;
  --accent-strong: #115e59;
  --danger: #b42318;
  --danger-bg: #fef3f2;
  --safe: #166534;
  --safe-bg: #f0fdf4;
  --border: rgba(65, 50, 38, 0.14);
  --shadow: 0 24px 64px rgba(68, 49, 22, 0.14);
  --radius: 26px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: Georgia, "Times New Roman", serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(15, 118, 110, 0.12), transparent 28%),
    radial-gradient(circle at bottom right, rgba(191, 90, 36, 0.12), transparent 24%),
    linear-gradient(135deg, #efe4d1 0%, #f8f2e8 42%, #e8ddd0 100%);
  display: grid;
  place-items: center;
  padding: 24px;
}

.shell {
  width: min(900px, 100%);
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
  backdrop-filter: blur(14px);
}

.hero {
  padding: 40px 40px 24px;
  background:
    linear-gradient(135deg, rgba(15, 118, 110, 0.14), rgba(255, 255, 255, 0)),
    linear-gradient(180deg, rgba(255, 248, 238, 0.7), rgba(255, 248, 238, 0.2));
  border-bottom: 1px solid var(--border);
}

.eyebrow {
  margin: 0 0 10px;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-size: 0.78rem;
  color: var(--accent-strong);
}

h1 {
  margin: 0;
  font-size: clamp(2rem, 4vw, 3.4rem);
  line-height: 0.95;
  font-weight: 700;
  max-width: 10ch;
}

.content {
  padding: 32px 40px 40px;
}

.card {
  background: var(--panel-strong);
  border: 1px solid var(--border);
  border-radius: 22px;
  padding: 28px;
  animation: rise 180ms ease-out;
}

@keyframes rise {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.card h2 {
  margin: 0 0 10px;
  font-size: 1.7rem;
}

.card p {
  margin: 0;
  color: var(--muted);
  line-height: 1.6;
}

.grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
  margin-top: 24px;
}

.grid.triple {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

label {
  display: block;
  font-weight: 700;
  margin-bottom: 8px;
}

.hint {
  display: block;
  margin-top: 6px;
  color: var(--muted);
  font-size: 0.9rem;
}

input[type="number"] {
  width: 100%;
  padding: 14px 15px;
  border-radius: 14px;
  border: 1px solid rgba(74, 58, 45, 0.18);
  background: #fff;
  color: var(--text);
  font: inherit;
}

input[type="number"]:focus {
  outline: 2px solid rgba(15, 118, 110, 0.28);
  border-color: var(--accent);
}

.choice-row {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-top: 24px;
}

.choice {
  flex: 1 1 220px;
  min-height: 64px;
  border-radius: 18px;
  border: 1px solid rgba(74, 58, 45, 0.14);
  background: #fff;
  color: var(--text);
  font: inherit;
  font-weight: 700;
  cursor: pointer;
  transition: transform 120ms ease, border-color 120ms ease, background 120ms ease;
}

.choice:hover,
.choice:focus-visible {
  border-color: var(--accent);
  background: #f4fffd;
  transform: translateY(-1px);
  outline: none;
}

.actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 28px;
}

button {
  border: 0;
  border-radius: 999px;
  padding: 14px 20px;
  font: inherit;
  font-weight: 700;
  cursor: pointer;
}

.primary {
  background: var(--accent);
  color: #f1fffe;
}

.primary:hover,
.primary:focus-visible {
  background: var(--accent-strong);
  outline: none;
}

.secondary {
  background: rgba(255, 255, 255, 0.75);
  color: var(--text);
  border: 1px solid var(--border);
}

.result {
  padding: 28px;
  border-radius: 22px;
  border: 1px solid transparent;
  animation: rise 180ms ease-out;
}

.result.safe {
  background: var(--safe-bg);
  border-color: rgba(22, 101, 52, 0.18);
}

.result.risk {
  background: var(--danger-bg);
  border-color: rgba(180, 35, 24, 0.18);
}

.status {
  margin: 0 0 10px;
  font-size: clamp(2rem, 3vw, 2.8rem);
  line-height: 1;
}

.result.safe .status {
  color: var(--safe);
}

.result.risk .status {
  color: var(--danger);
}

.reason {
  margin: 0;
  color: var(--text);
  font-size: 1.06rem;
  line-height: 1.6;
  max-width: 60ch;
}

.error {
  margin-top: 16px;
  padding: 12px 14px;
  border-radius: 14px;
  background: rgba(180, 35, 24, 0.08);
  color: var(--danger);
  border: 1px solid rgba(180, 35, 24, 0.18);
}

.summary {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin-top: 22px;
}

.summary-item {
  padding: 16px;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid var(--border);
}

.summary-item strong {
  display: block;
  margin-bottom: 6px;
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
}

@media (max-width: 720px) {
  .hero,
  .content {
    padding-left: 22px;
    padding-right: 22px;
  }

  .grid,
  .grid.triple,
  .summary {
    grid-template-columns: 1fr;
  }

  .choice {
    flex-basis: 100%;
  }
}