/* =====================================================================
 * Cobb Angels · 一脊一竹 — 设计令牌（来自品牌系统）
 * ===================================================================== */
:root {
  --bamboo:      #2DB146;   /* 主色 · 竹绿，与 logo 完全一致 */
  --bamboo-deep: #1f8c36;   /* 主按钮 hover/active */
  --bamboo-soft: #e8f5ec;   /* 徽标、激活态、ID 的浅填充 */
  --bamboo-line: #cfe8d6;   /* 浅填充上的描边 */

  --accent: #1A1A1A;        /* 正文 / 标题 */
  --muted:  #6b7280;        /* 次要文字 */
  --line:   #e5e7eb;        /* 边框 / 分割线 */
  --bg:     #f7faf8;        /* 页面背景（淡竹绿） */
  --panel:  #ffffff;        /* 卡片 / 面板 */

  --danger:  #c0392b;
  --warning: #c98a16;

  --viewer: #0e1413;        /* 取景器（视频）深色面 */

  --font: ui-sans-serif, system-ui, -apple-system, "PingFang SC",
          "Microsoft YaHei", "Hiragino Sans GB", "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, "JetBrains Mono", "SF Mono", Consolas, "Courier New", monospace;

  --radius: 10px;
  --radius-sm: 6px;
  --pill: 999px;
  --shadow: 0 1px 3px rgba(15,30,20,.06), 0 2px 12px rgba(15,30,20,.04);
  --transition: .15s ease;
}
@property --p { syntax: "<number>"; inherits: false; initial-value: 0; }

* { box-sizing: border-box; margin: 0; padding: 0; }
/* 确保 [hidden] 始终生效（覆盖 .overlay/.cam-controls 的 display:grid/flex） */
[hidden] { display: none !important; }
html, body { height: 100%; }
body {
  font-family: var(--font);
  font-size: 14px; line-height: 1.5; color: var(--accent);
  background: radial-gradient(1200px 600px at 85% -10%, rgba(45,177,70,.06), transparent 60%), var(--bg);
  min-height: 100vh; -webkit-font-smoothing: antialiased;
}
h1, h2, h3 { margin: 0; font-weight: 600; letter-spacing: -.01em; }
.latin { color: var(--muted); font-weight: 500; }

/* ---------- 顶栏 ---------- */
.topbar {
  display: flex; align-items: center; justify-content: space-between;
  gap: 16px; padding: 14px clamp(16px, 4vw, 32px); flex-wrap: wrap;
}
.brand { display: flex; align-items: center; gap: 12px; }
.brand-img { width: 22px; height: 48px; object-fit: contain; display: block; }
.brand-text h1 { font-size: 16px; font-weight: 700; letter-spacing: .2px; }
.brand-text p { color: var(--muted); font-size: 12px; font-weight: 500; margin-top: 2px; }

.status {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 5px 12px; background: var(--panel);
  border: 1px solid var(--line); border-radius: var(--pill);
  font-size: 12px; font-weight: 500; color: var(--muted);
}
.status .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--muted); }
.status[data-state="loading"] .dot { background: var(--warning); animation: pulse 1.1s infinite; }
.status[data-state="ready"] .dot,
.status[data-state="running"] .dot { background: var(--bamboo); }
.status[data-state="error"] .dot { background: var(--danger); }
@keyframes pulse {
  0% { box-shadow: 0 0 0 0 rgba(201,138,22,.5); }
  70% { box-shadow: 0 0 0 7px rgba(201,138,22,0); }
  100% { box-shadow: 0 0 0 0 rgba(201,138,22,0); }
}

/* ---------- 布局 ---------- */
.layout {
  display: flex; flex-direction: column; gap: 14px;
  padding: 0 clamp(16px, 4vw, 32px) 4px;
  max-width: 1500px; margin: 0 auto;
}

/* ---------- 取景器 ---------- */
.video-wrap {
  position: relative; aspect-ratio: 16 / 10; background: var(--viewer);
  border: 1px solid var(--line); border-radius: var(--radius);
  overflow: hidden; box-shadow: var(--shadow);
  width: 100%; max-width: min(1080px, 88vh); margin: 0 auto;
}
#video { display: none; }
#canvas { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }

.cam-controls {
  position: absolute; left: 10px; bottom: 10px; right: 10px;
  display: flex; gap: 8px; flex-wrap: wrap; align-items: center; z-index: 3;
}
.chip {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 6px 11px; font-size: 12px; color: #eef3f0;
  background: rgba(10,16,14,.55); backdrop-filter: blur(8px);
  border: 1px solid rgba(255,255,255,.16); border-radius: var(--pill);
  cursor: pointer; transition: border-color var(--transition), background var(--transition);
}
.chip:hover { border-color: var(--bamboo); }
.chip.active { border-color: var(--bamboo); color: #bff3c9; background: rgba(45,177,70,.22); }
.chip.fps { margin-left: auto; cursor: default; color: #9fb3a8; font-variant-numeric: tabular-nums; }
.select-chip select { background: transparent; border: none; color: #eef3f0; font-size: 12px; outline: none; cursor: pointer; }
.select-chip select option { background: #13201b; color: #eef3f0; }

/* 覆盖层（叠在深色取景器上） */
.overlay {
  position: absolute; inset: 0; z-index: 5; display: grid; place-items: center;
  background: radial-gradient(circle at 50% 35%, rgba(14,20,19,.72), rgba(8,12,11,.92));
  backdrop-filter: blur(3px); text-align: center; padding: 24px; color: #eef3f0;
}
.overlay-inner { max-width: 430px; }
.overlay-logo { width: 26px; height: 58px; object-fit: contain; margin-bottom: 14px; opacity: .95; }
.overlay h2 { font-size: 20px; margin-bottom: 8px; color: #fff; }
.overlay p { color: #b9c7bf; font-size: 13px; line-height: 1.6; margin-bottom: 16px; }
.overlay .hint { font-size: 12px; margin-top: 12px; margin-bottom: 0; opacity: .75; }
.error-overlay { background: radial-gradient(circle at 50% 35%, rgba(40,18,16,.72), rgba(8,12,11,.94)); }

/* ---------- 按钮（品牌） ---------- */
.btn {
  appearance: none; border: 1px solid transparent; border-radius: 8px;
  padding: 9px 16px; font-size: 14px; font-weight: 500; cursor: pointer;
  display: inline-flex; align-items: center; gap: 6px;
  transition: background var(--transition), border-color var(--transition), color var(--transition), opacity var(--transition);
}
.btn-primary { background: var(--bamboo); color: #fff; }
.btn-primary:hover:not(:disabled) { background: var(--bamboo-deep); }
.btn-ghost { background: transparent; color: var(--accent); border-color: var(--line); }
.btn-ghost:hover:not(:disabled) { background: #f3f4f6; border-color: #d1d5db; }
.btn:disabled { opacity: .5; cursor: not-allowed; }
.overlay .btn-ghost { color: #eef3f0; border-color: rgba(255,255,255,.3); }
.overlay .btn-ghost:hover:not(:disabled) { background: rgba(255,255,255,.1); }

/* ---------- 卡片 ---------- */
/* 面板移到视频下方：移动端单列 → 平板两列 → 桌面三列 */
.panel-col { display: grid; grid-template-columns: 1fr; gap: 14px; }
@media (min-width: 640px) {
  .panel-col { grid-template-columns: 1fr 1fr; align-items: start; }
  .picker-card { grid-column: 1 / -1; }
}
@media (min-width: 1080px) {
  .panel-col { grid-template-columns: 1.3fr 1fr 1.1fr; }
  .picker-card   { grid-column: 1; grid-row: 1 / span 2; }
  .counter-card  { grid-column: 2; grid-row: 1; }
  .meter-card    { grid-column: 2; grid-row: 2; }
  .feedback-card { grid-column: 3; grid-row: 1; }
  .settings-card { grid-column: 3; grid-row: 2; }
}
.card {
  background: var(--panel); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 14px; box-shadow: var(--shadow);
}
.card-title { font-size: 12px; color: var(--muted); font-weight: 600; letter-spacing: .3px; }

/* 动作选择 */
.ex-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; margin: 12px 0 10px; }
.ex-btn {
  display: flex; flex-direction: column; align-items: center; gap: 4px;
  padding: 10px 6px; background: #fff; border: 1px solid var(--line);
  border-radius: var(--radius-sm); color: var(--accent); cursor: pointer;
  transition: border-color var(--transition), background var(--transition);
}
.ex-btn .emoji { font-size: 20px; }
.ex-btn .label { font-size: 12px; color: var(--muted); }
.ex-btn:hover { border-color: var(--bamboo-line); background: #fafdfb; }
.ex-btn.active { border-color: var(--bamboo); background: var(--bamboo-soft); }
.ex-btn.active .label { color: var(--bamboo-deep); }
.ex-desc { font-size: 13px; color: var(--muted); line-height: 1.6; min-height: 40px; }

/* 计数环 */
.counter-card { display: flex; align-items: center; gap: 18px; }
.ring {
  --size: 128px; width: var(--size); height: var(--size); border-radius: 50%;
  background: conic-gradient(var(--bamboo) calc(var(--p) * 1%), #eef2ef 0);
  display: grid; place-items: center; flex-shrink: 0; transition: --p .4s ease;
}
.ring-inner {
  width: calc(var(--size) - 20px); height: calc(var(--size) - 20px); border-radius: 50%;
  background: var(--panel); display: grid; place-items: center; line-height: 1;
  box-shadow: inset 0 0 0 1px var(--line);
}
.count { font-size: 44px; font-weight: 800; font-variant-numeric: tabular-nums; color: var(--accent); }
.unit { font-size: 12px; color: var(--muted); margin-top: 4px; }
.counter-meta { flex: 1; display: flex; flex-direction: column; gap: 12px; }
.stage-pill {
  align-self: flex-start; padding: 5px 14px; border-radius: var(--pill);
  font-size: 13px; font-weight: 600; background: #f3f4f6;
  border: 1px solid var(--line); color: var(--muted);
}
.stage-pill[data-s="peak"]   { border-color: var(--bamboo); background: var(--bamboo-soft); color: var(--bamboo-deep); }
.stage-pill[data-s="rest"]   { border-color: var(--line); background: #f3f4f6; color: var(--muted); }
.stage-pill[data-s="moving"] { border-color: var(--bamboo-line); background: #fff; color: var(--accent); }
.stage-pill[data-s="bad"]    { border-color: #fce6b8; background: #fff5e0; color: var(--warning); }

.target-row { display: flex; align-items: center; gap: 8px; font-size: 12px; color: var(--muted); }
.target-row input {
  width: 54px; text-align: center; background: #fff; color: var(--accent);
  border: 1px solid var(--line); border-radius: var(--radius-sm);
  padding: 5px; font-size: 14px; font-variant-numeric: tabular-nums;
}
.target-row input:focus { outline: 2px solid var(--bamboo); outline-offset: -1px; border-color: var(--bamboo); }
.target-row input::-webkit-outer-spin-button,
.target-row input::-webkit-inner-spin-button { -webkit-appearance: none; margin: 0; }
.step {
  width: 26px; height: 26px; border-radius: var(--radius-sm);
  background: #fff; border: 1px solid var(--line); color: var(--accent);
  font-size: 15px; cursor: pointer; line-height: 1;
}
.step:hover { border-color: var(--bamboo); color: var(--bamboo-deep); }

/* 角度计 */
.meter-head { display: flex; align-items: baseline; justify-content: space-between; margin-bottom: 10px; }
.angle-val { font-size: 24px; font-weight: 700; font-variant-numeric: tabular-nums; color: var(--bamboo-deep); font-family: var(--mono); }
.rom-bar { height: 6px; border-radius: var(--pill); background: #eef2ef; overflow: hidden; }
.rom-fill { height: 100%; width: 0%; background: var(--bamboo); border-radius: var(--pill); transition: width .15s linear; }
.rom-labels { display: flex; justify-content: space-between; font-size: 11px; color: var(--muted); margin-top: 6px; }

/* 反馈 */
.feedback {
  font-size: 14px; line-height: 1.55; padding: 12px; border-radius: var(--radius-sm);
  background: #fafdfb; border: 1px solid var(--line); border-left: 3px solid var(--line);
  min-height: 50px; display: flex; align-items: center;
  transition: border-color var(--transition), background var(--transition), color var(--transition);
}
.feedback.good { border-left-color: var(--bamboo); background: var(--bamboo-soft); color: var(--bamboo-deep); }
.feedback.warn { border-left-color: var(--warning); background: #fff8ec; color: #8a5d10; }
.feedback.bad  { border-left-color: var(--danger); background: #fceae6; color: var(--danger); }

/* 设置 */
.settings-card { display: flex; align-items: center; gap: 16px; flex-wrap: wrap; }
.toggle { display: inline-flex; align-items: center; gap: 7px; font-size: 13px; cursor: pointer; color: var(--accent); }
.toggle input { width: 16px; height: 16px; accent-color: var(--bamboo); cursor: pointer; }
.ghost-btn {
  margin-left: auto; background: transparent; border: 1px solid var(--line);
  color: var(--muted); border-radius: 8px; padding: 8px 14px;
  font-size: 13px; cursor: pointer; transition: all var(--transition);
}
.ghost-btn:hover { border-color: var(--danger); color: var(--danger); }

/* 页脚 */
.footer {
  max-width: 1500px; margin: 8px auto 0; padding: 14px clamp(16px, 4vw, 32px) 28px;
  display: flex; flex-direction: column; gap: 6px; border-top: 1px solid var(--line);
}
.footer .tagline { font-size: 13px; font-weight: 600; color: var(--bamboo-deep); }
.footer .disclaimer { font-size: 12px; color: var(--muted); line-height: 1.5; }
.footer .tech { font-size: 11px; color: var(--muted); opacity: .8; }

/* Toast（品牌：白底 + 竹绿左条，右下角） */
.toast {
  position: fixed; right: 18px; bottom: 18px;
  background: var(--panel); border: 1px solid var(--line); border-left: 3px solid var(--bamboo);
  border-radius: 8px; padding: 12px 18px; font-size: 14px; font-weight: 600; color: var(--accent);
  box-shadow: 0 4px 18px rgba(0,0,0,.1);
  opacity: 0; transform: translateY(8px); pointer-events: none;
  transition: opacity .25s, transform .25s; z-index: 100;
}
.toast.show { opacity: 1; transform: translateY(0); }