* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  background: linear-gradient(140deg, #111827, #1f2937);
  color: #f8fafc;
  min-height: 100vh;
}

.container {
  max-width: 960px;
  margin: 0 auto;
  padding: 24px;
  display: grid;
  gap: 16px;
}

.hero, .card {
  background: #f8fafc;
  color: #0f172a;
  border-radius: 14px;
  padding: 18px;
}

.hero {
  background: linear-gradient(135deg, #2563eb, #0ea5e9);
  color: #f8fafc;
}

h1,h2,p { margin: 0; }

.eyebrow {
  text-transform: uppercase;
  letter-spacing: .08em;
  font-weight: 700;
  margin-bottom: 8px;
}

.brand-area,
label {
  display: grid;
  gap: 6px;
  margin-top: 12px;
}

.brand-area {
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
}

label {
  font-weight: 600;
  font-size: .92rem;
}

input[type='range'] {
  width: 100%;
  accent-color: #2563eb;
  height: 1.5rem;
}

input[type='text'],
input[type='email'],
button {
  width: 100%;
  border-radius: 10px;
  border: 1px solid #cbd5e1;
  padding: 10px;
  font-size: 1rem;
}

fieldset {
  border: 1px solid #dbeafe;
  border-radius: 10px;
  padding: 12px;
  margin: 12px 0;
}

fieldset label {
  margin: 8px 0;
  font-size: .9rem;
}

button {
  background: #2563eb;
  border: none;
  color: white;
  font-weight: 700;
  cursor: pointer;
}

#score-output p {
  padding: 8px 0;
  border-bottom: 1px dashed #dbeafe;
}

#score-output ul {
  margin: 8px 0 0 20px;
  padding: 0;
}

.muted { color: #475569; }

.hidden { display: none; }

.cta {
  display: inline-block;
  text-decoration: none;
  background: #0ea5e9;
  color: #fff;
  padding: 12px 14px;
  border-radius: 10px;
  margin-top: 10px;
  font-weight: 700;
}

.result {
  background: #eef2ff;
}

@media (max-width: 720px) {
  .container { padding: 14px; }
}


.live-preview-gallery {
  margin-top: 1.5rem;
}

.preview-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1rem;
  margin-top: 1rem;
}

.preview-grid figure {
  margin: 0;
  padding: 0.75rem;
  border: 1px solid rgba(148, 163, 184, 0.28);
  border-radius: 18px;
  background: rgba(15, 23, 42, 0.72);
}

.preview-grid img {
  width: 100%;
  height: auto;
  border-radius: 12px;
  display: block;
  border: 1px solid rgba(255,255,255,0.12);
}

.preview-grid figcaption {
  margin-top: 0.55rem;
  color: #cbd5e1;
  font-size: 0.92rem;
}