:root {
  color-scheme: light;
  --bg: #eff6ff;
  --text: #1c2434;
  --muted: #5c657a;
  --primary: #2563eb;
  --accent: #f97316;
  --soft-blue: #eff6ff;
  --soft-orange: #fff7ed;
  --card: #ffffff;
  --border: #dce2ee;
  --success: #16a34a;
  --danger: #dc2626;
  --success-bg: #dcfce7;
  --danger-bg: #fee2e2;
  --accent-glow: rgba(249, 115, 22, 0.2);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: "Inter", system-ui, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
}

a {
  color: inherit;
  text-decoration: none;
}

.container {
  width: min(1100px, 92%);
  margin: 0 auto;
}

.site-header {
  background: var(--card);
  border-bottom: 1px solid var(--border);
  padding: 16px 0;
}

.logo {
  font-weight: 700;
  font-size: 1.1rem;
}

.nav {
  display: flex;
  gap: 16px;
  font-size: 0.95rem;
  color: var(--muted);
}

.site-header .container,
.site-footer .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}

main {
  padding: 32px 0 48px;
}

.panel {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 28px;
  box-shadow: 0 10px 30px rgba(19, 29, 52, 0.05);
}

h1 {
  font-size: clamp(1.8rem, 3vw, 2.4rem);
  margin-bottom: 12px;
}

.lead {
  color: var(--muted);
  margin-bottom: 24px;
}

.form {
  display: grid;
  gap: 16px;
  margin-bottom: 24px;
}

label {
  display: grid;
  gap: 6px;
  font-weight: 600;
}

select,
button {
  padding: 12px 14px;
  border-radius: 10px;
  border: 1px solid var(--border);
  font-size: 1rem;
}

select:focus-visible,
button:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  box-shadow: 0 0 0 4px var(--accent-glow);
}

button {
  background: var(--primary);
  color: #fff;
  border: none;
  cursor: pointer;
  font-weight: 600;
  transition: background 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
}

button:hover {
  background: linear-gradient(120deg, #2563eb, #1d4ed8);
  box-shadow: 0 12px 24px rgba(37, 99, 235, 0.25);
  transform: translateY(-1px);
}

.ad-slot {
  border: 1px dashed var(--border);
  border-radius: 12px;
  padding: 16px;
  text-align: center;
  background: #fefefe;
  margin: 20px 0;
}

.ad-placeholder {
  color: var(--muted);
  font-size: 0.9rem;
}

.result-header {
  margin-bottom: 24px;
}

.result-message {
  font-size: clamp(1.6rem, 2.8vw, 2.2rem);
  font-weight: 700;
  padding: 12px 14px;
  border-radius: 12px;
  display: inline-flex;
  gap: 8px;
  align-items: center;
}

.result-subtitle {
  color: var(--muted);
  margin-top: 6px;
}

.grid {
  display: grid;
  gap: 16px;
}

.info-cards {
  margin-top: 24px;
}

.info-cards .card {
  margin-top: 0;
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 20px;
  margin-top: 16px;
  transition: border-color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
}

.card:hover {
  border-color: var(--accent);
  box-shadow: 0 16px 30px rgba(19, 29, 52, 0.1);
  transform: translateY(-2px);
}

.info-cards .card {
  border-top: 4px solid var(--accent);
  background: linear-gradient(140deg, #ffffff 0%, var(--soft-orange) 100%);
}

.plug-list {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 12px;
}

.plug-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  width: 64px;
}

.plug-image,
.plug-fallback {
  width: 56px;
  height: 56px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--soft-blue);
  display: flex;
  align-items: center;
  justify-content: center;
}

.plug-item:nth-child(even) .plug-image,
.plug-item:nth-child(even) .plug-fallback {
  background: var(--soft-orange);
  border-color: rgba(249, 115, 22, 0.3);
}

.plug-label {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--primary);
}

.plug-fallback {
  color: var(--primary);
  font-weight: 700;
}

.status-success {
  color: #0f2f1a;
  background: var(--success-bg);
  border: 1px solid rgba(22, 163, 74, 0.25);
}

.status-danger {
  color: #4a0b0b;
  background: var(--danger-bg);
  border: 1px solid rgba(220, 38, 38, 0.25);
}

.note {
  color: var(--muted);
  margin-top: 8px;
  font-size: 0.95rem;
}

.faq details {
  border-bottom: 1px solid var(--border);
  padding: 12px 0;
}

.faq summary {
  cursor: pointer;
  font-weight: 600;
}

.hidden {
  display: none;
}

.site-footer {
  border-top: 1px solid var(--border);
  background: var(--card);
  padding: 16px 0;
  font-size: 0.9rem;
  color: var(--muted);
}

.footer-links {
  display: flex;
  gap: 16px;
}

.footer-links a {
  text-decoration: underline;
  text-decoration-color: transparent;
  text-underline-offset: 4px;
  transition: color 0.2s ease, text-decoration-color 0.2s ease;
}

.footer-links a:hover,
.footer-links a:focus-visible {
  color: var(--accent);
  text-decoration-color: var(--accent);
}

@media (min-width: 768px) {
  .form {
    grid-template-columns: repeat(2, 1fr);
    align-items: end;
  }

  .form button {
    grid-column: span 2;
    width: 220px;
  }

  .grid {
    grid-template-columns: repeat(2, 1fr);
  }
}