:root {
  --bg: #1f2a36;
  --panel: #2b3a4a;
  --text: #e3e6ea;
  --muted: #b8c0cc;
  --accent: #1e6f8c;
  --accent-2: #8aa3b3;
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  font-family: Montserrat, system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  background: linear-gradient(160deg, #223042, var(--bg));
  color: var(--text);
}

.brand-header {
  padding: 48px 24px 24px;
  text-align: center;
  background: radial-gradient(1200px 320px at 50% -40%, #314252 40%, transparent 60%);
}
.brand {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  font-family: 'Playfair Display', serif;
  font-weight: 700;
  letter-spacing: 0.2em;
  color: var(--muted);
  font-size: 36px;
}
.brand-mark { position: relative; }
.brand-mark::before, .brand-mark::after {
  content: "";
  position: absolute;
  top: 50%;
  width: 24px;
  height: 2px;
  background: var(--accent-2);
}
.brand-mark::before { left: -32px; }
.brand-mark::after { right: -32px; }
.brand-sub {
  margin-top: 12px;
  color: var(--muted);
  font-size: 14px;
}

.container { max-width: 980px; margin: 0 auto; padding: 24px; }
.card {
  background: rgba(43, 58, 74, 0.75);
  border: 1px solid #3e5166;
  border-radius: 16px;
  padding: 24px;
  backdrop-filter: blur(6px);
  box-shadow: 0 8px 24px rgba(0,0,0,0.35);
}

h2 {
  font-family: 'Playfair Display', serif;
  font-weight: 600;
  font-size: 22px;
  margin: 12px 0 16px;
}

label { display: block; margin: 8px 0; }
input[type="text"], input[type="tel"], input[type="url"], textarea {
  width: 100%;
  margin-top: 6px;
  padding: 12px 14px;
  border-radius: 10px;
  border: 1px solid #3e5166;
  background: #223042;
  color: var(--text);
}
textarea { resize: vertical; }

.grid.two { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.grid.one { display: grid; grid-template-columns: 1fr; gap: 8px; }

.section-help { color: var(--muted); font-size: 13px; margin-bottom: 8px; }

.ratings { display: grid; grid-template-columns: 1fr; gap: 10px; }
.rating-item { background: #243347; border: 1px solid #3e5166; border-radius: 12px; padding: 12px; }
.rating-item label { font-weight: 600; font-size: 14px; color: var(--text); }
.control { display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 12px; margin-top: 8px; }
input[type="range"] { width: 100%; accent-color: var(--accent); }
.value { display: inline-block; min-width: 28px; text-align: right; font-weight: 700; color: var(--accent); }

.average { display: grid; grid-template-columns: 1fr auto; align-items: center; padding: 12px; margin-top: 8px; border-top: 1px dashed #4b5f76; color: var(--muted); }
.average-value { font-size: 20px; font-weight: 700; color: var(--text); }

.actions { display: flex; justify-content: center; margin-top: 20px; }
button#submit-btn {
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: 999px;
  padding: 12px 20px;
  font-weight: 700;
  letter-spacing: 0.03em;
  cursor: pointer;
}
button#submit-btn:hover { background: #1a5a72; }

.feedback { margin-top: 16px; text-align: center; font-size: 14px; }
.ok { color: #7ad27a; }
.error { color: #f09090; }

@media (max-width: 640px) { .grid.two { grid-template-columns: 1fr; } }