/* =============================================================================
   frontend/css/style.css —— 原型站点的样式。
   刻意不用任何框架/构建步骤：一个 html + 几个 ES module + 这份 css，
   `uvicorn backend.app:app` 起来就能看，改一行刷新即可。
   ============================================================================= */

:root {
  --bg: #0f1720;
  --bg-soft: #16212c;
  --card: #1b2836;
  --card-2: #21303f;
  --line: #2c3d4f;
  --text: #e6edf3;
  --muted: #93a4b5;
  --accent: #35c46a;
  --accent-2: #4299e1;
  --warn: #d69e2e;
  --bad: #e5534b;
  --radius: 12px;
  --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei",
               "Helvetica Neue", Arial, sans-serif;
  font-size: 15px;
  line-height: 1.6;
}

code { font-family: var(--mono); font-size: 0.9em; color: #a8d5ff; }
.muted { color: var(--muted); }
.small { font-size: 13px; }
.spacer { flex: 1; }

/* ---------- 顶栏 ---------- */
.topbar {
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  padding: 14px 22px; background: linear-gradient(180deg, #16212c, #121b25);
  border-bottom: 1px solid var(--line); position: sticky; top: 0; z-index: 20;
  flex-wrap: wrap;
}
.brand { display: flex; align-items: center; gap: 12px; }
.logo { font-size: 30px; }
.topbar h1 { font-size: 18px; margin: 0; letter-spacing: 0.3px; }
.sub { margin: 2px 0 0; font-size: 12.5px; color: var(--muted); }
.arrow { color: var(--accent); padding: 0 2px; }
.status { display: flex; gap: 8px; flex-wrap: wrap; }
.pill {
  font-size: 12px; padding: 4px 10px; border-radius: 999px;
  background: var(--card-2); border: 1px solid var(--line); color: var(--muted);
  white-space: nowrap;
}
.pill.ok { color: #b7f5cf; border-color: #20603a; background: #14301f; }
.pill.warn { color: #ffe6ad; border-color: #6b5320; background: #322611; }
.pill.bad { color: #ffc9c5; border-color: #6d2b26; background: #331a18; }

/* ---------- 布局 ---------- */
.layout {
  display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr);
  gap: 18px; padding: 18px 22px 28px; align-items: start;
}
@media (max-width: 1080px) { .layout { grid-template-columns: 1fr; } }
.col-left, .col-right { display: flex; flex-direction: column; gap: 14px; min-width: 0; }

/* ---------- 结论摘要条 ----------
   识别完成后的最终答案一行展示。移动端（单列布局）结果卡片在折叠线以下，
   这条 sticky 钉在顶部，滚到哪都能看到答案；桌面双栏不 sticky，只做摘要。 */
.verdict {
  display: flex; align-items: center; gap: 10px; flex-wrap: wrap;
  padding: 8px 22px; background: #10241a; border-bottom: 1px solid #20603a;
}
/* display:flex 会压过 UA 的 [hidden]{display:none}，不加这条 hidden 不生效 */
.verdict[hidden] { display: none; }
.verdict-kind {
  font-size: 11.5px; padding: 2px 8px; border-radius: 6px; border: 1px solid;
  background: rgba(255, 255, 255, .04); white-space: nowrap;
}
.verdict-name { font-size: 17px; font-weight: 650; letter-spacing: .3px; }
.verdict-conf { font-family: var(--mono); font-size: 13px; color: var(--muted); }
.verdict-src {
  margin-left: auto; font-size: 11.5px; color: var(--muted); white-space: nowrap;
  border: 1px solid var(--line); border-radius: 999px; padding: 2px 9px;
}
.verdict.pending { background: #1a2430; border-bottom-color: var(--line); }

/* ---------- 移动端：单列 + 首屏优先 ----------
   手机上首屏最贵的是纵向空间：顶栏、大图、工具栏、诊断面板任何一块膨胀
   都会把结果卡片推出折叠线。这里做三件事：
   1) 顶栏取消 sticky（把 sticky 位让给结论条）并压缩高度
   2) 工作图限高，方图不再撑满整屏
   3) 识别完成后 scrollIntoView 时给 sticky 结论条预留高度 */
@media (max-width: 1080px) {
  .topbar { position: static; }
  .verdict { position: sticky; top: 0; z-index: 20; }
  .card, .panel { scroll-margin-top: 52px; }
}
@media (max-width: 720px) {
  .topbar { padding: 10px 14px; gap: 8px; }
  .logo { font-size: 24px; }
  .topbar h1 { font-size: 16px; }
  /* 级联长说明移动端隐藏：胶囊已表达状态，长句只会把首屏往下推 */
  .sub { display: none; }
  .status { gap: 6px; }
  .pill { font-size: 11px; padding: 3px 8px; }
  .verdict { padding: 7px 14px; }
  .verdict-name { font-size: 15px; }
  .layout { padding: 12px 14px 20px; gap: 12px; }
  .col-left, .col-right { gap: 10px; }
  .dropzone { min-height: 200px; }
  /* 关键：工作图限高 44vh，与 max-width:100% 叠加后等比取更紧的约束 */
  #canvas { max-height: 44vh; width: auto; }
  .dz-hint { padding: 16px; }
  .dz-icon { font-size: 32px; }
  .dz-hint p { margin: 4px 0; }
  .toolbar { gap: 8px; }
  .btn { padding: 7px 11px; font-size: 13px; }
  .meta { font-size: 11.5px; }
  .card-body { padding: 12px 14px; }
  .answer .name { font-size: 20px; }
  .footer { padding: 12px 14px 20px; }
}

/* ---------- 上传区 ---------- */
.dropzone {
  position: relative; border: 2px dashed var(--line); border-radius: var(--radius);
  background: var(--bg-soft); min-height: 340px; display: flex; align-items: center;
  justify-content: center; overflow: hidden; transition: border-color .15s, background .15s;
  cursor: pointer;
}
.dropzone:hover, .dropzone:focus-visible { border-color: var(--accent); outline: none; }
.dropzone.dragover { border-color: var(--accent); background: #14261c; }
/* 前端模型加载窗口期：上传闸门关闭的视觉反馈 */
.dropzone.loading { cursor: progress; opacity: .72; }
.dz-hint { text-align: center; padding: 26px; }
.dz-icon { font-size: 42px; margin-bottom: 6px; }
#canvas { display: block; max-width: 100%; height: auto; border-radius: 8px; }
/* 作者样式的 display:block 会压过 UA 的 [hidden]{display:none}，
   不加这条，clearAll() 的 canvas.hidden=true 不生效：清空后图片不消失 */
#canvas[hidden] { display: none; }

.toolbar { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.btn {
  background: var(--card-2); color: var(--text); border: 1px solid var(--line);
  border-radius: 9px; padding: 8px 14px; font-size: 14px; cursor: pointer;
  transition: transform .06s, background .15s, border-color .15s;
}
.btn:hover:not(:disabled) { background: #2a3b4d; border-color: #3b5167; }
.btn:active:not(:disabled) { transform: translateY(1px); }
.btn:disabled { opacity: .45; cursor: not-allowed; }
.btn-primary { background: #1d5c37; border-color: #2b7a4b; color: #eafff1; }
.btn-primary:hover:not(:disabled) { background: #237545; }
.btn-ghost { background: transparent; }
.switch { display: flex; align-items: center; gap: 6px; font-size: 13px; color: var(--muted); }
.meta { font-size: 12.5px; color: var(--muted); font-family: var(--mono); }

/* ---------- 卡片 ---------- */
.card, .panel {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  overflow: hidden;
}
.card-head {
  display: flex; align-items: center; justify-content: space-between; gap: 10px;
  padding: 12px 16px; background: var(--card-2); border-bottom: 1px solid var(--line);
}
.card-head h2 { font-size: 15px; margin: 0; }
.tag { font-size: 11.5px; color: var(--muted); font-family: var(--mono); font-weight: 400; }
.card-body { padding: 14px 16px; display: flex; flex-direction: column; gap: 12px; }
.badge {
  font-size: 12px; padding: 3px 10px; border-radius: 999px; white-space: nowrap;
  background: #2b3a4b; color: #cfe0ef; border: 1px solid var(--line);
}
.badge-soft { background: transparent; color: var(--muted); }
.badge.ok { background: #14301f; border-color: #20603a; color: #b7f5cf; }
.badge.warn { background: #322611; border-color: #6b5320; color: #ffe6ad; }
.badge.bad { background: #331a18; border-color: #6d2b26; color: #ffc9c5; }
.badge.info { background: #12283c; border-color: #1f4a70; color: #bfe0ff; }

/* ---------- 答案 ---------- */
.answer { display: flex; align-items: baseline; gap: 12px; flex-wrap: wrap; }
.answer .name { font-size: 24px; font-weight: 650; letter-spacing: .5px; }
.answer .sci { font-size: 13px; color: var(--muted); font-style: italic; }
.answer .conf { margin-left: auto; font-family: var(--mono); font-size: 13px; color: var(--muted); }
.answer .kind {
  font-size: 11.5px; padding: 2px 8px; border-radius: 6px; border: 1px solid var(--line);
  background: var(--card-2); color: var(--muted);
}
.bar { height: 6px; border-radius: 4px; background: #2b3a4b; overflow: hidden; flex-basis: 100%; }
.bar > i { display: block; height: 100%; background: var(--accent); width: 0; transition: width .3s; }

/* ---------- 升级原因 ---------- */
.reasons { display: flex; gap: 6px; flex-wrap: wrap; }
.chip {
  font-size: 12px; padding: 3px 9px; border-radius: 999px;
  background: #322611; border: 1px solid #6b5320; color: #ffe6ad; cursor: help;
}
.chip.info { background: #12283c; border-color: #1f4a70; color: #bfe0ff; }

/* ---------- 键值表 ---------- */
.kv { display: grid; grid-template-columns: minmax(96px, auto) 1fr; gap: 4px 12px; font-size: 13px; }
.kv dt, .kv .k { color: var(--muted); }
.kv dd, .kv .v { margin: 0; font-family: var(--mono); word-break: break-all; }
.kv.small { font-size: 12.5px; }
.kv .row { display: contents; }

/* ---------- 决策链 ---------- */
details summary { cursor: pointer; padding: 8px 0; color: var(--muted); font-size: 13px; }
details summary:hover { color: var(--text); }
ol.path { margin: 6px 0 0; padding-left: 20px; font-size: 13px; color: #cfe0ef; }
ol.path li { margin-bottom: 4px; }
ol.path li b { color: var(--accent); }
ul.logs { margin: 4px 0 0; padding-left: 18px; font-size: 12.5px; color: var(--muted);
          font-family: var(--mono); max-height: 220px; overflow: auto; }
ul.logs li { margin-bottom: 3px; white-space: pre-wrap; word-break: break-all; }
.panel-body { padding: 12px 16px; }
.panel-body h4 { margin: 14px 0 4px; font-size: 12.5px; color: var(--muted); font-weight: 600;
                 text-transform: uppercase; letter-spacing: .6px; }
.panel > summary { padding: 12px 16px; background: var(--card-2); font-size: 13.5px; }

/* ---------- 多物种 ---------- */
ul.species-list { list-style: none; margin: 6px 0 0; padding: 0; display: flex; flex-direction: column; gap: 6px; }
ul.species-list li {
  display: flex; align-items: center; gap: 10px; padding: 6px 10px;
  background: var(--card-2); border: 1px solid var(--line); border-radius: 8px; font-size: 13px;
}
ul.species-list .swatch { width: 10px; height: 10px; border-radius: 3px; }
ul.species-list .c { margin-left: auto; font-family: var(--mono); color: var(--muted); }

/* ---------- 纠错 ---------- */
.correct-buttons { display: flex; gap: 8px; flex-wrap: wrap; }
.correct-buttons .btn[data-active="1"] { border-color: var(--accent); background: #1d5c37; }
.correct-note { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.correct-note input {
  flex: 1; min-width: 220px; background: var(--bg-soft); border: 1px solid var(--line);
  border-radius: 8px; color: var(--text); padding: 8px 10px; font-size: 13px;
}
.result { font-size: 13px; }
.result.ok { color: #b7f5cf; }
.result.bad { color: #ffc9c5; }

/* ---------- 页脚 ---------- */
.footer {
  display: flex; justify-content: space-between; gap: 14px; flex-wrap: wrap;
  padding: 14px 22px 26px; border-top: 1px solid var(--line); font-size: 12.5px; color: var(--muted);
}
/* 备案号：法规要求可点击跳工信部，视觉上保持页脚的低调 */
.footer a.icp { color: var(--muted); text-decoration: none; white-space: nowrap; }
.footer a.icp:hover { color: var(--text); text-decoration: underline; }

/* ---------- 加载动画 ---------- */
.spin {
  display: inline-block; width: 12px; height: 12px; border-radius: 50%;
  border: 2px solid rgba(255,255,255,.25); border-top-color: var(--accent);
  animation: spin .8s linear infinite; vertical-align: -2px; margin-right: 6px;
}
@keyframes spin { to { transform: rotate(360deg); } }