/* ===== BUTTONS ===== */
.btn-primary {
  background: #22c55e;
  color: #022c22;
  padding: 0.75rem 1.5rem;
  border-radius: 0.5rem;
  font-weight: 600;
}

.btn-primary:hover {
  background: #16a34a;
}

.btn-secondary {
  background: #1e293b;
  color: #e5e7eb;
  padding: 0.6rem 1.25rem;
  border-radius: 0.5rem;
}

.btn-secondary:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

/* ===== TABS ===== */
.qr-tabs {
  display: flex;
  gap: 0.5rem;
  justify-content: center;
  margin-bottom: 1.5rem;
}

.qr-tab {
  padding: 0.5rem 1rem;
  background: #1e293b;
  border-radius: 0.4rem;
  opacity: 0.7;
}

.qr-tab.active {
  background: #22c55e;
  color: #022c22;
  opacity: 1;
}

/* ===== FORM ===== */
.qr-form label {
  display: block;
  margin-top: 1rem;
  margin-bottom: 0.25rem;
  font-size: 0.9rem;
}

.qr-form input,
.qr-form textarea,
.qr-form select {
  padding: 0.6rem;
  border-radius: 0.4rem;
  border: none;
  background: #020617;
  color: #e5e7eb;
}

/* ===== FORM SECTIONS ===== */
.qr-form-section {
  display: none;
}

.qr-form-section.active {
  display: block;
}

/* ===== QR PREVIEW ===== */
.qr-preview {
  background: #020617;
  border-radius: 0.75rem;
  padding: 1.5rem;
  text-align: center;
}

.qr-placeholder {
  opacity: 0.5;
}

.qr-download {
  display: flex;
  gap: 0.75rem;
  justify-content: center;
  margin-top: 1rem;
}

/* ===== QR Customizer ===== */
.qr-customizer {
  margin: 1.25rem auto 0;
  max-width: 980px;
  background: rgba(2, 6, 23, 0.55);
  border: 1px solid rgba(148, 163, 184, 0.12);
  border-radius: 1rem;
  padding: 1rem;
}

.customizer-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
  align-items: end;
}

.customizer-item label {
  display: block;
  font-weight: 600;
  margin-bottom: 0.35rem;
  opacity: 0.95;
}

.customizer-item input[type="range"] {
  width: 100%;
}

.customizer-item input[type="color"],
.customizer-item select,
.customizer-item input[type="file"] {
  width: 100%;
}

.customizer-hint {
  display: inline-block;
  margin-top: 0.35rem;
  opacity: 0.7;
  font-size: 0.85rem;
}

.customizer-logo {
  grid-column: span 2;
}

.logo-actions {
  margin-top: 0.5rem;
  display: flex;
  gap: 0.5rem;
}

@media (max-width: 768px) {
  .customizer-grid {
    grid-template-columns: 1fr 1fr;
  }
  .customizer-logo {
    grid-column: span 2;
  }
}