.arc-save-btn {
  display: block;
  max-width: 680px;
  margin: 8px auto 24px;
  padding: 12px 20px;
  background: #0b6b57;
  color: #ffffff;
  border: none;
  border-radius: 10px;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  text-align: center;
  transition: background 0.15s, transform 0.15s;
}
.arc-save-btn:hover { background: #094f42; transform: translateY(-1px); }
.arc-save-btn:before { content: "\2709"; margin-right: 8px; }

.arc-save-modal-wrap {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(17, 24, 39, 0.55);
  z-index: 99998;
  align-items: center;
  justify-content: center;
  padding: 16px;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}
.arc-save-modal-wrap.open { display: flex; }

.arc-save-modal {
  background: #ffffff;
  border-radius: 14px;
  padding: 28px;
  max-width: 460px;
  width: 100%;
  position: relative;
  box-shadow: 0 20px 60px rgba(0,0,0,0.25);
  color: #1a2424;
}

.arc-save-close {
  position: absolute;
  top: 12px;
  right: 12px;
  background: none;
  border: none;
  font-size: 1.6rem;
  color: #9ca3af;
  cursor: pointer;
  padding: 4px 10px;
  line-height: 1;
}
.arc-save-close:hover { color: #111827; }

.arc-save-title {
  font-size: 1.3rem;
  font-weight: 700;
  color: #0b6b57;
  margin-bottom: 8px;
}
.arc-save-sub {
  font-size: 0.9rem;
  color: #4b5563;
  line-height: 1.4;
  margin-bottom: 18px;
}
.arc-save-form {
  display: flex;
  flex-direction: column;
}
.arc-save-label {
  font-size: 0.85rem;
  font-weight: 600;
  color: #0b6b57;
  margin-bottom: 4px;
}
#arc-save-email {
  padding: 12px 14px;
  border: 1px solid #cfe0db;
  border-radius: 8px;
  font-size: 1rem;
  color: #1a2424;
  background: #fff;
  margin-bottom: 12px;
  font-family: inherit;
}
#arc-save-email:focus {
  outline: none;
  border-color: #0b6b57;
  box-shadow: 0 0 0 2px rgba(11,107,87,0.15);
}
.arc-save-check {
  display: flex;
  gap: 8px;
  font-size: 0.85rem;
  color: #4b5563;
  line-height: 1.4;
  margin-bottom: 16px;
  cursor: pointer;
  align-items: flex-start;
}
.arc-save-check input { margin-top: 3px; }

.arc-save-submit {
  padding: 12px 20px;
  background: #0b6b57;
  color: #fff;
  border: none;
  border-radius: 8px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  font-family: inherit;
}
.arc-save-submit:hover:not(:disabled) { background: #094f42; }
.arc-save-submit:disabled { opacity: 0.6; cursor: not-allowed; }

.arc-save-msg {
  margin-top: 12px;
  font-size: 0.9rem;
  line-height: 1.4;
  min-height: 20px;
}
.arc-save-msg.ok { color: #059669; font-weight: 600; }
.arc-save-msg.err { color: #dc2626; }