/* ============================================================
   小游戏代码工坊 · 工坊页面样式（零依赖、无外部资源）
   ============================================================ */

:root {
  --primary: #7c5cff;
  --cyan: #22d3ee;
  --pink: #ff5ca8;
  --amber: #ffb347;
  --ink: #e9ecff;
  --muted: rgba(233, 236, 255, .58);
  --panel-bg: rgba(255, 255, 255, .06);
  --panel-line: rgba(255, 255, 255, .12);
  --code-bg: #0a0d1c;
}

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

html, body { height: 100%; }

body {
  font-family: system-ui, -apple-system, "Segoe UI", "Microsoft YaHei", sans-serif;
  color: var(--ink);
  background: radial-gradient(circle at 50% 30%, #171a3a, #0b0e20);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  -webkit-tap-highlight-color: transparent;
}

/* ---------- 顶部栏 ---------- */
.topbar {
  position: sticky;
  top: 0;
  z-index: 30;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 22px;
  background: rgba(11, 14, 32, .72);
  border-bottom: 1px solid var(--panel-line);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.brand { display: flex; align-items: center; gap: 10px; }

.brand-mark {
  display: inline-flex;
  color: var(--cyan);
  filter: drop-shadow(0 0 8px rgba(34, 211, 238, .45));
}

.brand-text {
  font-size: 18px;
  font-weight: 800;
  letter-spacing: 2px;
  background: linear-gradient(90deg, var(--primary), var(--cyan));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.back-link {
  color: var(--ink);
  text-decoration: none;
  font-size: 14px;
  padding: 7px 14px;
  border: 1px solid var(--panel-line);
  border-radius: 999px;
  background: var(--panel-bg);
  transition: border-color .2s, color .2s;
}

.back-link:hover { border-color: var(--cyan); color: var(--cyan); }

/* ---------- 布局 ---------- */
.workspace {
  flex: 1;
  width: min(1280px, 100%);
  margin: 0 auto;
  padding: 18px;
  display: grid;
  grid-template-columns: 340px minmax(0, 1fr);
  gap: 18px;
  align-items: start;
}

.panel {
  background: var(--panel-bg);
  border: 1px solid var(--panel-line);
  border-radius: 20px;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.controls { padding: 20px; }

.right-col { min-width: 0; }

.code-panel {
  display: flex;
  flex-direction: column;
  padding: 18px;
  gap: 12px;
}

.panel-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px;
  flex-wrap: wrap;
}

.panel-title { font-size: 16px; font-weight: 800; letter-spacing: 1px; }

.code-meta { font-size: 12px; color: var(--muted); }

/* ---------- 表单字段 ---------- */
.field { margin-bottom: 18px; }

.field-label {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 13.5px;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 9px;
}

.label-counter { font-size: 11.5px; color: var(--muted); font-weight: 400; }
.label-counter b { color: var(--cyan); }

.field-tip {
  margin-top: 8px;
  font-size: 12px;
  line-height: 1.6;
  color: var(--muted);
}

.divider {
  border: none;
  border-top: 1px solid var(--panel-line);
  margin: 4px 0 18px;
}

/* 分段选择 */
.seg {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 6px;
  padding: 4px;
  background: rgba(0, 0, 0, .25);
  border: 1px solid var(--panel-line);
  border-radius: 12px;
}

.seg-btn {
  appearance: none;
  border: none;
  background: transparent;
  color: var(--muted);
  font: inherit;
  font-size: 13px;
  font-weight: 700;
  padding: 8px 4px;
  border-radius: 9px;
  cursor: pointer;
  transition: background .15s, color .15s;
}

.seg-btn:hover { color: var(--ink); }

.seg-btn.active {
  color: #0b0e20;
  background: linear-gradient(135deg, var(--primary), var(--cyan));
}

.seg.cols-2 { grid-template-columns: repeat(2, 1fr); }
.seg.cols-3 { grid-template-columns: repeat(3, 1fr); }

/* 文本输入 */
.text-input {
  width: 100%;
  appearance: none;
  font: inherit;
  font-size: 14px;
  color: var(--ink);
  background: rgba(0, 0, 0, .28);
  border: 1px solid var(--panel-line);
  border-radius: 12px;
  padding: 10px 13px;
  outline: none;
  transition: border-color .15s, box-shadow .15s;
}

.text-input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(124, 92, 255, .22);
}

.text-input::placeholder { color: rgba(233, 236, 255, .3); }

/* 主题卡片 */
.theme-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 8px;
}

.theme-card {
  appearance: none;
  font: inherit;
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 9px 11px;
  border-radius: 12px;
  cursor: pointer;
  color: var(--ink);
  background: rgba(0, 0, 0, .22);
  border: 1px solid var(--panel-line);
  transition: border-color .15s, transform .08s;
}

.theme-card:hover { border-color: rgba(255, 255, 255, .3); }
.theme-card:active { transform: scale(.98); }

.theme-card.active {
  border-color: var(--cyan);
  box-shadow: 0 0 0 2px rgba(34, 211, 238, .25) inset;
}

.theme-dots { display: inline-flex; }

.theme-dots i {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  display: block;
  border: 1px solid rgba(255, 255, 255, .35);
}

.theme-dots i + i { margin-left: -5px; }

.theme-name { font-size: 12.5px; font-weight: 700; }

/* 滑块与下拉 */
.opt-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 10px;
  font-size: 13px;
  color: var(--muted);
}

.opt-row:last-child { margin-bottom: 0; }

.opt-row b { color: var(--cyan); font-size: 12.5px; min-width: 52px; text-align: right; }

input[type="range"] {
  flex: 1;
  appearance: none;
  -webkit-appearance: none;
  height: 4px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--primary), var(--cyan));
  outline: none;
}

input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: #fff;
  border: 3px solid var(--primary);
  cursor: pointer;
  box-shadow: 0 2px 8px rgba(0, 0, 0, .4);
}

input[type="range"]::-moz-range-thumb {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: #fff;
  border: 3px solid var(--primary);
  cursor: pointer;
}

.opt-select {
  appearance: none;
  -webkit-appearance: none;
  font: inherit;
  font-size: 13px;
  color: var(--ink);
  background: rgba(0, 0, 0, .3);
  border: 1px solid var(--panel-line);
  border-radius: 10px;
  padding: 8px 30px 8px 12px;
  cursor: pointer;
  background-image: linear-gradient(45deg, transparent 50%, var(--muted) 50%),
                    linear-gradient(135deg, var(--muted) 50%, transparent 50%);
  background-position: calc(100% - 16px) 50%, calc(100% - 11px) 50%;
  background-size: 5px 5px;
  background-repeat: no-repeat;
}

.opt-select option { background: #141838; color: var(--ink); }

/* 开关 */
.switch-list { display: flex; flex-direction: column; gap: 10px; }

.switch-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  font-size: 13px;
  cursor: pointer;
  padding: 9px 12px;
  background: rgba(0, 0, 0, .2);
  border: 1px solid var(--panel-line);
  border-radius: 12px;
}

.switch-row input { position: absolute; opacity: 0; width: 0; height: 0; }

.switch {
  flex: none;
  width: 40px;
  height: 22px;
  border-radius: 999px;
  background: rgba(255, 255, 255, .14);
  position: relative;
  transition: background .18s;
}

.switch-thumb {
  position: absolute;
  top: 3px;
  left: 3px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: #fff;
  transition: transform .18s;
}

.switch-row input:checked + .switch {
  background: linear-gradient(90deg, var(--primary), var(--cyan));
}

.switch-row input:checked + .switch .switch-thumb { transform: translateX(18px); }

.switch-row input:focus-visible + .switch { outline: 2px solid var(--cyan); outline-offset: 2px; }

/* ---------- 按钮 ---------- */
.btn {
  appearance: none;
  font: inherit;
  font-size: 13.5px;
  font-weight: 700;
  color: var(--ink);
  background: rgba(255, 255, 255, .07);
  border: 1px solid var(--panel-line);
  border-radius: 12px;
  padding: 9px 16px;
  cursor: pointer;
  transition: transform .08s, border-color .15s, box-shadow .2s, background .15s;
}

.btn:hover { border-color: var(--cyan); }
.btn:active { transform: translateY(1px); }

.btn-primary {
  position: relative;
  font-size: 15px;
  padding: 12px 18px;
  color: #0b0e20;
  border: none;
  background: linear-gradient(135deg, var(--primary), var(--cyan));
  box-shadow: 0 8px 24px -10px var(--primary);
}

.btn-primary:hover { box-shadow: 0 10px 28px -8px var(--cyan); }

.btn-accent {
  color: #0b0e20;
  border: none;
  background: linear-gradient(135deg, var(--amber), var(--pink));
  letter-spacing: 2px;
}

.btn-small { padding: 6px 12px; font-size: 12.5px; border-radius: 9px; }

.btn-block { width: 100%; }

.actions { display: flex; flex-direction: column; gap: 10px; margin-top: 4px; }

.actions-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

#btn-random { flex: 1; }

.live-check {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 12.5px;
  color: var(--muted);
  cursor: pointer;
  user-select: none;
}

.live-check input { accent-color: var(--primary); width: 15px; height: 15px; cursor: pointer; }

/* 未应用更改提示 */
.dirty-dot {
  display: none;
  width: 9px;
  height: 9px;
  margin-left: 8px;
  border-radius: 50%;
  background: var(--amber);
  box-shadow: 0 0 8px var(--amber);
  animation: pulse 1.2s infinite;
  vertical-align: middle;
}

.dirty-text {
  display: none;
  font-size: 11.5px;
  font-weight: 400;
  letter-spacing: 0;
  margin-left: 6px;
  color: var(--amber);
}

.is-dirty .dirty-dot,
.is-dirty .dirty-text { display: inline-block; }

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: .35; }
}

/* ---------- 工具条与代码区 ---------- */
.toolbar { display: flex; gap: 8px; flex-wrap: wrap; }

.code-scroll {
  overflow: auto;
  max-height: calc(100vh - 230px);
  min-height: 420px;
  border-radius: 14px;
  background: rgba(5, 7, 18, .7);
  border: 1px solid rgba(255, 255, 255, .08);
}

.code-inner { display: flex; min-width: max-content; }

.gutter,
.code-lines {
  margin: 0;
  padding: 14px 0;
  font-family: ui-monospace, Consolas, monospace;
  font-size: 12.5px;
  line-height: 1.65;
  white-space: pre;
}

.gutter {
  position: sticky;
  left: 0;
  z-index: 2;
  min-width: 54px;
  padding: 14px 10px 14px 14px;
  text-align: right;
  color: #55608c;
  background: #0a0d1c;
  border-right: 1px solid rgba(255, 255, 255, .07);
  user-select: none;
}

.code-lines {
  padding: 14px 20px 14px 16px;
  color: #dfe6ff;
}

.code-lines code { font: inherit; }

/* 语法高亮配色 */
.hl-kw { color: #c79bff; }
.hl-str { color: #7ee0b8; }
.hl-com { color: #63709e; font-style: italic; }
.hl-num { color: #ffb347; }

/* ---------- 底部说明 ---------- */
.site-footer {
  text-align: center;
  font-size: 12px;
  color: var(--muted);
  padding: 10px 16px 22px;
  line-height: 1.7;
}

/* ---------- 试运行弹层 ---------- */
.run-mask {
  position: fixed;
  inset: 0;
  z-index: 60;
  background: rgba(4, 6, 16, .82);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.run-mask[hidden] { display: none; }

.run-card {
  width: min(980px, 96vw);
  height: min(760px, 92vh);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  background: var(--panel-bg);
  border: 1px solid var(--panel-line);
  border-radius: 20px;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.run-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 10px 14px;
  border-bottom: 1px solid var(--panel-line);
  background: rgba(0, 0, 0, .25);
  font-size: 13.5px;
}

.run-title b { color: var(--cyan); }

.run-actions { display: flex; gap: 8px; }

#run-frame {
  flex: 1;
  width: 100%;
  border: 0;
  background: #0b0e20;
}

/* ---------- 轻提示 ---------- */
.toast {
  position: fixed;
  left: 50%;
  bottom: 34px;
  transform: translate(-50%, 16px);
  z-index: 80;
  padding: 10px 22px;
  border-radius: 999px;
  background: rgba(20, 24, 56, .95);
  border: 1px solid var(--cyan);
  color: var(--ink);
  font-size: 13.5px;
  opacity: 0;
  pointer-events: none;
  transition: opacity .2s, transform .2s;
}

.toast.show {
  opacity: 1;
  transform: translate(-50%, 0);
}

/* ---------- 手机端上下堆叠 ---------- */
@media (max-width: 920px) {
  .workspace {
    grid-template-columns: 1fr;
    padding: 12px;
  }

  .code-scroll { max-height: 60vh; min-height: 320px; }

  .brand-text { font-size: 16px; letter-spacing: 1px; }

  .back-link { font-size: 13px; padding: 6px 12px; }
}