* { box-sizing: border-box; }
body { margin: 0; min-height: 100vh; font-family: system-ui, sans-serif; background: #e8ecf4; color: #0f172a; }

.back-portfolio {
  position: fixed;
  bottom: 1rem;
  left: 1rem;
  z-index: 9999;
  padding: 0.5rem 1rem;
  background: rgba(15, 23, 42, 0.92);
  color: #fff;
  text-decoration: none;
  font-size: 0.8125rem;
  font-weight: 700;
  border-radius: 999px;
}

.page { max-width: 960px; margin: 0 auto; padding: 1.25rem 1rem 2rem; }
.head h1 { margin: 0 0 0.35rem; font-size: clamp(1.35rem, 3vw, 1.85rem); letter-spacing: -0.03em; }
.head p { margin: 0 0 1.25rem; color: #64748b; }

.panel {
  background: #fff;
  border-radius: 16px;
  border: 1px solid #e2e8f0;
  padding: 1.5rem;
}

.drop {
  display: block;
  border: 2px dashed #cbd5e1;
  border-radius: 12px;
  padding: 2rem;
  text-align: center;
  cursor: pointer;
  margin-bottom: 1.25rem;
}
.drop input { display: none; }
.drop span { font-weight: 600; color: #475569; }

.controls {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem;
  margin-bottom: 1rem;
}
.controls label {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  font-size: 0.8rem;
  font-weight: 600;
  color: #475569;
}
.controls input { font: inherit; }

.err { color: #dc2626; font-size: 0.9rem; }
.hidden { display: none !important; }

.result {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.5rem;
  margin-top: 1.25rem;
}
.result h2 { margin: 0 0 0.35rem; font-size: 1rem; }
.meta { margin: 0 0 0.75rem; font-size: 0.8rem; color: #64748b; }
.result img {
  width: 100%;
  border-radius: 8px;
  border: 1px solid #e2e8f0;
}
.dl {
  display: inline-block;
  margin-top: 0.75rem;
  font-weight: 600;
  color: #4f46e5;
}