:root {
  --green: #4caf50;
  --green-d: #2e7d32;
  --green-l: #e8f7ea;
  --blue: #4aa3df;
  --ink: #3a4a3f;
  --card: #ffffff;
  --line: #bfe3c4;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", system-ui, sans-serif;
  background: linear-gradient(135deg, #eaf7ec 0%, #d6f0ff 100%);
  color: var(--ink);
  padding: 18px;
  display: flex;
  justify-content: center;
}

.sheet {
  width: 100%;
  max-width: 880px;
  background: var(--card);
  border: 3px solid var(--line);
  border-radius: 22px;
  padding: 16px 20px 22px;
  box-shadow: 0 12px 36px rgba(46, 125, 50, 0.18);
}

/* ---------- header ---------- */
.header { text-align: center; margin-bottom: 10px; }
.title-wrap { display: flex; align-items: center; justify-content: center; gap: 10px; }
.title-wrap h1 {
  margin: 0;
  font-size: 30px;
  letter-spacing: 3px;
  color: var(--green-d);
  text-shadow: 2px 2px 0 #c8eccb;
  -webkit-text-stroke: 0.5px #2e7d32;
}
.deco { font-size: 26px; }
.subtitle {
  margin: 6px 0 0;
  display: inline-block;
  background: #ffe9a8;
  color: #b06a00;
  padding: 3px 16px;
  border-radius: 20px;
  font-size: 13px;
}

/* ---------- toolbar ---------- */
.toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px;
  background: var(--green-l);
  border: 2px dashed var(--line);
  border-radius: 14px;
  padding: 10px 14px;
  margin: 12px 0;
}
.tool-group { display: flex; align-items: center; gap: 8px; }
.tool-group.actions { margin-left: auto; gap: 8px; }
.tg-label { font-size: 13px; color: var(--green-d); font-weight: 600; }
.swatches { display: flex; gap: 6px; }
.swatch {
  width: 22px; height: 22px; border-radius: 50%;
  border: 2px solid #fff; cursor: pointer;
  box-shadow: 0 0 0 1px #ccc;
}
.swatch.active { box-shadow: 0 0 0 2px var(--green-d); transform: scale(1.15); }
#customColor { width: 30px; height: 28px; border: none; background: none; cursor: pointer; padding: 0; }
#sizeRange { width: 110px; accent-color: var(--green); }

.btn {
  border: 2px solid var(--line);
  background: #fff;
  color: var(--green-d);
  padding: 7px 13px;
  border-radius: 10px;
  font-size: 13px;
  cursor: pointer;
  font-weight: 600;
  transition: all .15s;
}
.btn:hover { background: var(--green-l); }
.btn.primary { background: var(--green); color: #fff; border-color: var(--green); }
.btn.primary:hover { background: var(--green-d); }

/* ---------- main ---------- */
.main { display: flex; gap: 14px; align-items: flex-start; }
.canvas-area { flex: 1; min-width: 0; }
.canvas-stack {
  position: relative;
  border: 3px solid var(--line);
  border-radius: 12px;
  overflow: hidden;
  line-height: 0;
  background: #f3f7f3;
}
.bg-img { width: 100%; display: block; user-select: none; -webkit-user-drag: none; }
#drawCanvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  touch-action: none;
  cursor: crosshair;
}
.hint { font-size: 12px; color: #6a8a72; margin: 8px 2px 0; }

.canvas-text-input {
  position: absolute;
  transform: translateY(-50%);
  z-index: 5;
  min-width: 90px;
  border: 2px solid var(--green);
  border-radius: 6px;
  background: rgba(255, 255, 255, .92);
  padding: 2px 6px;
  font-weight: 700;
  font-family: inherit;
  outline: none;
  box-shadow: 0 2px 8px rgba(0, 0, 0, .15);
}

/* ---------- legend ---------- */
.legend {
  width: 168px;
  flex-shrink: 0;
  background: var(--green-l);
  border: 2px solid var(--line);
  border-radius: 14px;
  padding: 10px;
}
.legend-title {
  text-align: center;
  background: var(--green);
  color: #fff;
  border-radius: 8px;
  padding: 5px;
  font-weight: 700;
  font-size: 14px;
  margin-bottom: 10px;
}
.legend-list { display: flex; flex-direction: column; gap: 6px; }
.legend-item {
  display: flex;
  align-items: center;
  gap: 8px;
  background: #fff;
  border: 2px solid transparent;
  border-radius: 10px;
  padding: 6px 8px;
  cursor: pointer;
  font-size: 13px;
  color: var(--ink);
  text-align: left;
  transition: all .15s;
}
.legend-item:hover { border-color: var(--line); }
.legend-item.active {
  border-color: var(--green);
  background: #fffef0;
  box-shadow: 0 2px 8px rgba(76,175,80,.25);
}
.li-icon { width: 32px; display: flex; justify-content: center; align-items: center; font-size: 18px; }
.li-text { font-weight: 600; }
.legend-note { font-size: 11px; color: #6a8a72; text-align: center; margin: 10px 2px 2px; }

/* ---------- form ---------- */
.form {
  margin-top: 16px;
  border-top: 2px dashed var(--line);
  padding-top: 14px;
}
.form-row.top {
  display: flex;
  gap: 22px;
  flex-wrap: wrap;
  margin-bottom: 12px;
}
.form label { font-size: 14px; color: var(--green-d); font-weight: 600; }
.form input[type="text"], .form input[type="date"] {
  border: none;
  border-bottom: 2px solid var(--line);
  font-size: 14px;
  padding: 3px 6px;
  background: transparent;
  color: var(--ink);
  outline: none;
}
.form input[type="text"]:focus, .form input[type="date"]:focus,
.form textarea:focus { border-color: var(--green); }
.form-row.top input { width: 130px; }

.form-block {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  margin-bottom: 12px;
  flex-wrap: wrap;
}
.leaf { font-size: 15px; }
.fb-label { white-space: nowrap; padding-top: 4px; }
.form textarea {
  flex: 1;
  min-width: 240px;
  border: 2px solid var(--line);
  border-radius: 10px;
  padding: 6px 10px;
  font-size: 14px;
  resize: vertical;
  outline: none;
  font-family: inherit;
}
.form-block.addon { align-items: center; }
.cb { display: flex; align-items: center; gap: 4px; font-weight: 500; }
.other-input { width: 140px; }

/* ---------- responsive ---------- */
@media (max-width: 680px) {
  .main { flex-direction: column; }
  .legend { width: 100%; }
  .legend-list { flex-direction: row; flex-wrap: wrap; }
  .legend-item { flex: 1 1 calc(50% - 6px); }
  .toolbar { gap: 10px; }
  .tool-group.actions { margin-left: 0; }
}

/* ---------- print ---------- */
@media print {
  body { background: #fff; padding: 0; }
  .sheet { border: none; box-shadow: none; max-width: 100%; }
  .no-print { display: none !important; }
}