:root {
  --bg: #f7f3ef;
  --panel: #fffaf5;
  --ink: #1d1a17;
  --muted: #665f58;
  --line: #ded2c7;
  --accent: #7b3f2c;
  --accent-dark: #512619;
  --danger-bg: #fff0f0;
  --danger-border: #d28a8a;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  background: radial-gradient(circle at top left, #fff9f0, var(--bg));
  color: var(--ink);
}

.page-shell {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
  padding: 40px 0 64px;
}

.hero {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
  padding: 36px;
  border: 1px solid var(--line);
  border-radius: 28px;
  background: linear-gradient(135deg, rgba(255,250,245,.96), rgba(244,231,220,.96));
  box-shadow: 0 18px 60px rgba(68, 39, 24, .10);
}

.eyebrow {
  margin: 0 0 10px;
  font-size: 13px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--accent);
  font-weight: 700;
}

h1, h2, h3 { margin: 0; line-height: 1.08; }
h1 { font-size: clamp(34px, 7vw, 68px); max-width: 900px; }
h2 { font-size: clamp(24px, 4vw, 36px); }
h3 { font-size: 18px; margin-top: 14px; }
.subhead { max-width: 740px; color: var(--muted); font-size: 18px; line-height: 1.6; }

.panel, .error-box, .results {
  margin-top: 24px;
  border: 1px solid var(--line);
  border-radius: 24px;
  background: var(--panel);
  box-shadow: 0 14px 40px rgba(68, 39, 24, .08);
}

.panel { padding: 28px; }
.design-form { display: grid; gap: 14px; }
label { font-weight: 700; }
input[type=file], textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 14px;
  background: #fff;
  color: var(--ink);
  font-size: 16px;
}
textarea { resize: vertical; min-height: 150px; }
.hint { margin: -6px 0 6px; color: var(--muted); font-size: 14px; }
button {
  justify-self: start;
  border: 0;
  border-radius: 999px;
  padding: 14px 22px;
  background: var(--accent);
  color: white;
  font-weight: 700;
  font-size: 16px;
  cursor: pointer;
}
button:hover { background: var(--accent-dark); }

.error-box {
  background: var(--danger-bg);
  border-color: var(--danger-border);
  padding: 24px;
}
.error-box p { margin-bottom: 0; color: #6b1d1d; }

.results { padding: 28px; }
.results-header { margin-bottom: 18px; }
.grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}
.card {
  border: 1px solid var(--line);
  border-radius: 20px;
  padding: 14px;
  background: #fff;
}
.card img {
  display: block;
  width: 100%;
  aspect-ratio: 3 / 4;
  object-fit: cover;
  border-radius: 16px;
  background: #eee;
}

@media (max-width: 800px) {
  .hero, .panel, .results { padding: 20px; }
  .grid { grid-template-columns: 1fr; }
  button { width: 100%; }
}