:root {
  --bg: #10131a;
  --panel: #171b26;
  --panel-2: #1e2433;
  --border: #2a3244;
  --accent: #e8b84b;
  --accent-2: #4ba8e8;
  --text: #d7dce6;
  --muted: #8b93a7;
  --danger: #e8604b;
  --radius: 8px;
  --mono: "SF Mono", Menlo, Consolas, monospace;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html, body {
  height: 100%;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 14px;
  overflow: hidden;
}

/* ---------- top bar ---------- */
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 18px;
  background: linear-gradient(180deg, #1c2230, #141924);
  border-bottom: 1px solid var(--border);
}
.title { display: flex; align-items: baseline; gap: 10px; }
.logo { color: var(--accent); font-size: 20px; }
.title h1 { font-size: 18px; letter-spacing: 1px; font-weight: 700; }
.sub { color: var(--muted); font-size: 12px; }
.top-actions { display: flex; gap: 8px; }

/* ---------- buttons ---------- */
.btn {
  background: var(--panel-2);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 8px 14px;
  cursor: pointer;
  font-size: 13px;
  transition: border-color .15s, background .15s;
}
.btn:hover { border-color: var(--accent); }
.btn:active { transform: translateY(1px); }
.btn-ghost { background: transparent; }
.btn-mini { padding: 4px 10px; font-size: 12px; border-radius: 6px; }
.btn-cycle { border-color: var(--accent-2); color: var(--accent-2); }
.btn-cycle:hover { border-color: var(--accent-2); background: rgba(75,168,232,.12); }
label.btn { display: inline-block; }
label.btn input[type="file"] { display: none; }

/* ---------- layout ---------- */
.layout {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 14px;
  padding: 14px;
  height: calc(100% - 58px);
}

/* ---------- game ---------- */
.game-wrap {
  display: flex;
  flex-direction: column;
  min-width: 0;
}
#canvas-holder {
  position: relative;
  flex: 1;
  min-height: 0;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  background: #0a0c11;
}
#game {
  width: 100%;
  height: 100%;
  display: block;
  image-rendering: auto;
}
.game-info {
  display: flex;
  justify-content: space-between;
  color: var(--muted);
  font-size: 12px;
  padding: 8px 4px 0;
}
.game-info b { color: var(--text); }

.drop-hint {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(232, 184, 75, .18);
  border: 2px dashed var(--accent);
  color: var(--accent);
  font-size: 20px;
  font-weight: 700;
  pointer-events: none;
  z-index: 5;
}
/* 对话窗 */
#dialogue {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 14px;
  display: flex;
  justify-content: center;
  z-index: 6;
  pointer-events: auto;
}
.dlg-box {
  width: min(760px, 92%);
  background: rgba(16, 20, 28, 0.96);
  border: 2px solid var(--accent);
  border-radius: 10px;
  padding: 14px 18px;
  box-shadow: 0 6px 30px rgba(0, 0, 0, .5);
}
.dlg-name {
  color: var(--accent);
  font-weight: 700;
  font-size: 14px;
  margin-bottom: 6px;
  border-bottom: 1px solid var(--border);
  padding-bottom: 5px;
}
.dlg-text {
  color: var(--text);
  font-size: 15px;
  line-height: 1.8;
  min-height: 24px;
  white-space: pre-wrap;
}
.dlg-next {
  text-align: right;
  color: var(--muted);
  font-size: 12px;
  margin-top: 4px;
}

/* modal */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(8, 10, 16, 0.6);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 50;
}
.modal-box {
  width: min(420px, 92vw);
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 16px;
}
.modal-title { font-weight: 700; font-size: 15px; margin-bottom: 12px; color: var(--accent); }
.modal-field {
  display: block;
  font-size: 12px;
  color: var(--muted);
  margin: 10px 0 4px;
}
.modal-body input[type="text"],
.modal-body textarea {
  width: 100%;
  background: var(--panel-2);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 6px;
  padding: 8px 10px;
  font-size: 13px;
  font-family: inherit;
  resize: vertical;
}
.modal-body input:focus, .modal-body textarea:focus { outline: none; border-color: var(--accent); }
.modal-actions { display: flex; justify-content: flex-end; gap: 8px; margin-top: 14px; }
.toast {
  position: absolute;
  bottom: 16px;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(20, 26, 36, .92);
  border: 1px solid var(--accent);
  color: var(--text);
  padding: 8px 18px;
  border-radius: 999px;
  font-size: 13px;
  z-index: 6;
  white-space: nowrap;
}

/* ---------- panel ---------- */
.panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow-y: auto;
  overflow-x: hidden;
}
.panel-tabs { display: flex; border-bottom: 1px solid var(--border); position: sticky; top: 0; background: var(--panel); z-index: 2; }
.tab {
  flex: 1;
  padding: 10px 0;
  background: transparent;
  border: none;
  color: var(--muted);
  cursor: pointer;
  font-size: 13px;
  border-bottom: 2px solid transparent;
}
.tab.active { color: var(--accent); border-bottom-color: var(--accent); }
.tab-body { padding: 12px; }

.hint {
  font-size: 12px;
  color: var(--muted);
  background: var(--panel-2);
  border-radius: 6px;
  padding: 8px 10px;
  margin-bottom: 12px;
  line-height: 1.7;
}
.hint code {
  font-family: var(--mono);
  background: rgba(255,255,255,.06);
  padding: 0 4px;
  border-radius: 4px;
}

/* slots */
.slot-row {
  display: flex;
  gap: 10px;
  padding: 10px;
  margin-bottom: 8px;
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}
.slot-row.highlight { border-color: var(--accent); box-shadow: 0 0 0 2px rgba(232,184,75,.25); }
.slot-preview {
  width: 64px;
  height: 64px;
  flex: none;
  background: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16"><path d="M0 0h8v8H0zM8 8h8v8H8z" fill="%2327303f"/><path d="M8 0h8v8H8zM0 8h8v8H0z" fill="%232a3445"/></svg>');
  background-size: 16px 16px;
  border: 1px solid var(--border);
  border-radius: 6px;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}
.slot-preview img { max-width: 100%; max-height: 100%; object-fit: contain; }
.slot-meta { flex: 1; min-width: 0; }
.slot-name { font-weight: 700; display: flex; align-items: center; gap: 6px; }
.tag {
  font-size: 10px;
  color: var(--muted);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 0 5px;
  font-weight: 400;
}
.slot-file {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--muted);
  margin: 4px 0 6px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.slot-actions { display: flex; gap: 6px; flex-wrap: wrap; }

.cfg-row {
  margin-top: 8px;
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  color: var(--muted);
}
.cfg-row b { color: var(--accent); min-width: 40px; text-align: right; font-family: var(--mono); }
.cfg-row input[type="range"] { flex: 1; accent-color: var(--accent-2); }

#npc-slots { display: flex; flex-direction: column; gap: 8px; }

/* npc behavior */
.npc-beh-card {
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 10px;
  margin-bottom: 8px;
}
.npc-beh-head {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 8px;
}
.npc-beh-head .dot { width: 10px; height: 10px; border-radius: 50%; flex: none; }
.npc-beh-head b { flex: 1; }
.npc-beh-row {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  color: var(--muted);
  margin-bottom: 6px;
}
.npc-beh-row label { width: 56px; flex: none; }
.npc-beh-row input[type="range"] { flex: 1; accent-color: var(--accent-2); }
.npc-beh-row b { min-width: 34px; text-align: right; font-family: var(--mono); color: var(--accent); }
.npc-beh-row select {
  flex: 1;
  background: var(--panel);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 5px 8px;
  font-size: 12px;
}
.npc-beh-row .npc-dlg-meta { flex: 1; font-size: 11px; color: var(--muted); font-family: var(--mono); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.npc-beh-row input[type="text"] {
  flex: 1;
  background: var(--panel);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 5px 8px;
  font-size: 12px;
}
.npc-beh-row input[type="text"]:focus { outline: none; border-color: var(--accent); }
.npc-beh-row .npc-path-edit { flex: none; }
.npc-beh-row .npc-dlg-edit { flex: none; }
.npc-beh-card.inactive { opacity: 0.45; filter: grayscale(0.4); }
.npc-toggle { flex: 1; font-size: 12px; color: var(--muted); display: flex; align-items: center; gap: 6px; cursor: pointer; }
.npc-toggle input { accent-color: var(--accent-2); }

/* presets */
.preset-save-row { display: flex; gap: 8px; margin-bottom: 12px; }
.preset-save-row input {
  flex: 1;
  background: var(--panel-2);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: var(--radius);
  padding: 8px 10px;
  font-size: 13px;
}
.preset-save-row input:focus { outline: none; border-color: var(--accent); }
.preset-list-title { font-size: 12px; color: var(--muted); margin-bottom: 6px; }
.preset-list { display: flex; flex-direction: column; gap: 6px; }
.preset-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 10px;
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: 6px;
}
.preset-item .p-name { flex: 1; font-weight: 600; }
.preset-item .p-apply { background: transparent; border: 1px solid var(--accent); color: var(--accent); border-radius: 6px; padding: 3px 8px; cursor: pointer; font-size: 12px; }
.preset-item .p-del { background: transparent; border: 1px solid transparent; color: var(--danger); border-radius: 6px; padding: 3px 6px; cursor: pointer; }
.preset-item .p-apply:hover { background: rgba(232,184,75,.12); }
.preset-io { display: flex; gap: 8px; margin-top: 12px; }

.hidden { display: none !important; }

/* scrollbar */
.panel::-webkit-scrollbar { width: 8px; }
.panel::-webkit-scrollbar-thumb { background: var(--border); border-radius: 4px; }
.panel::-webkit-scrollbar-track { background: transparent; }