/* ============================================================
   三角洲行动 · 灵敏度调校实验室 — 视觉体系
   暗色战术风 / 橙色主调 / 网格纹理 / 等宽数字
   ============================================================ */
:root {
  --bg: #0b0e12;
  --bg-2: #10151c;
  --panel: #141a22;
  --panel-2: #18202a;
  --line: rgba(255, 122, 26, .18);
  --line-soft: rgba(255, 255, 255, .07);
  --text: #e8ecf1;
  --text-2: #9aa7b4;
  --text-3: #5f6b78;
  --accent: #ff7a1a;
  --accent-2: #ffb066;
  --olive: #a3b86b;
  --good: #52c41a;
  --warn: #faad14;
  --bad: #ff4d4f;
  --cyan: #39c5cf;
  --mono: "Cascadia Code", "JetBrains Mono", Consolas, "Courier New", monospace;
  --sans: "Segoe UI", "Microsoft YaHei", "PingFang SC", "Noto Sans SC", sans-serif;
  --radius: 10px;
  --shadow: 0 8px 30px rgba(0, 0, 0, .45);
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html, body { height: 100%; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-size: 14px;
  line-height: 1.65;
  overflow: hidden;
}
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-thumb { background: #26303c; border-radius: 6px; border: 2px solid var(--bg); }
::-webkit-scrollbar-track { background: transparent; }

/* ---------- 布局骨架 ---------- */
#app { display: flex; height: 100vh; }

.sidebar {
  width: 232px;
  flex: 0 0 232px;
  background: linear-gradient(180deg, #0d1117 0%, #0b0e12 100%);
  border-right: 1px solid var(--line-soft);
  display: flex;
  flex-direction: column;
  z-index: 10;
}
.brand {
  padding: 20px 18px 16px;
  border-bottom: 1px solid var(--line-soft);
}
.brand .logo {
  display: flex; align-items: center; gap: 10px;
  font-size: 16px; font-weight: 800; letter-spacing: .5px;
}
.brand .logo .mark {
  width: 30px; height: 30px; flex: 0 0 30px;
  display: grid; place-items: center;
  background: linear-gradient(135deg, var(--accent), #b34700);
  clip-path: polygon(50% 0, 100% 86%, 0 86%);
  color: #0b0e12; font-size: 13px; font-weight: 900;
}
.brand .sub { color: var(--text-3); font-size: 11px; margin-top: 6px; letter-spacing: 2px; font-family: var(--mono); }

.nav { flex: 1; overflow-y: auto; padding: 12px 10px; }
.nav-group { color: var(--text-3); font-size: 11px; letter-spacing: 2px; margin: 14px 8px 6px; }
.nav-item {
  display: flex; align-items: center; gap: 10px;
  padding: 9px 12px; margin-bottom: 2px;
  color: var(--text-2); border-radius: 8px;
  cursor: pointer; user-select: none;
  border: 1px solid transparent;
  transition: all .15s;
}
.nav-item:hover { background: rgba(255, 122, 26, .07); color: var(--text); }
.nav-item.active {
  background: linear-gradient(90deg, rgba(255, 122, 26, .16), rgba(255, 122, 26, .04));
  border-color: var(--line);
  color: var(--accent-2);
}
.nav-item .ico { width: 18px; text-align: center; font-size: 15px; }
.nav-item .num { margin-left: auto; font-family: var(--mono); font-size: 10px; color: var(--text-3); }

.sidebar-foot {
  padding: 14px 16px; border-top: 1px solid var(--line-soft);
  color: var(--text-3); font-size: 11px; font-family: var(--mono);
}
.sidebar-foot b { color: var(--accent-2); }

.main { flex: 1; display: flex; flex-direction: column; min-width: 0; }
.topbar {
  height: 58px; flex: 0 0 58px;
  display: flex; align-items: center; gap: 14px;
  padding: 0 24px;
  border-bottom: 1px solid var(--line-soft);
  background: rgba(16, 21, 28, .85);
  backdrop-filter: blur(6px);
}
.topbar h1 { font-size: 17px; font-weight: 700; }
.topbar .crumb { color: var(--text-3); font-size: 12px; font-family: var(--mono); }
.topbar .spacer { flex: 1; }

.content {
  flex: 1; overflow-y: auto; padding: 24px 26px 60px;
  background:
    radial-gradient(900px 380px at 85% -60px, rgba(255, 122, 26, .06), transparent 60%),
    repeating-linear-gradient(0deg, transparent 0 39px, rgba(255,255,255,.016) 39px 40px),
    repeating-linear-gradient(90deg, transparent 0 39px, rgba(255,255,255,.016) 39px 40px);
}
.section { display: none; max-width: 1180px; margin: 0 auto; }
.section.active { display: block; animation: fade .25s ease; }
@keyframes fade { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: none; } }

/* ---------- 通用组件 ---------- */
.card {
  background: linear-gradient(180deg, var(--panel) 0%, var(--bg-2) 100%);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  padding: 18px 20px;
  margin-bottom: 16px;
  position: relative;
}
.card.hl { border-color: var(--line); }
.card h3 {
  font-size: 14px; font-weight: 700; margin-bottom: 12px;
  display: flex; align-items: center; gap: 8px;
}
.card h3::before {
  content: ""; width: 4px; height: 14px;
  background: var(--accent); border-radius: 2px;
}
.card h3 .right { margin-left: auto; font-weight: 400; }
.muted { color: var(--text-2); }
.tiny { font-size: 12px; color: var(--text-3); }
.mono { font-family: var(--mono); }

.grid { display: grid; gap: 16px; }
.grid.c2 { grid-template-columns: 1fr 1fr; }
.grid.c3 { grid-template-columns: repeat(3, 1fr); }
.grid.c4 { grid-template-columns: repeat(4, 1fr); }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  padding: 8px 16px; border-radius: 8px;
  background: var(--panel-2); color: var(--text);
  border: 1px solid var(--line-soft);
  font-size: 13px; font-family: var(--sans);
  cursor: pointer; transition: all .15s; user-select: none;
}
.btn:hover { border-color: var(--line); background: #1d2632; }
.btn.primary {
  background: linear-gradient(135deg, var(--accent), #d95f07);
  border-color: transparent; color: #14100a; font-weight: 700;
}
.btn.primary:hover { filter: brightness(1.1); }
.btn.ghost { background: transparent; }
.btn.danger { color: var(--bad); border-color: rgba(255, 77, 79, .3); }
.btn.sm { padding: 4px 10px; font-size: 12px; }
.btn:disabled { opacity: .45; cursor: not-allowed; }

.badge {
  display: inline-flex; align-items: center;
  padding: 2px 9px; border-radius: 99px;
  font-size: 11px; font-family: var(--mono);
  border: 1px solid var(--line-soft); color: var(--text-2);
  background: rgba(255, 255, 255, .03);
}
.badge.accent { color: var(--accent-2); border-color: var(--line); background: rgba(255, 122, 26, .1); }
.badge.good { color: var(--good); border-color: rgba(82, 196, 26, .3); }
.badge.warn { color: var(--warn); border-color: rgba(250, 173, 20, .3); }
.badge.bad { color: var(--bad); border-color: rgba(255, 77, 79, .3); }
.badge.cyan { color: var(--cyan); border-color: rgba(57, 197, 207, .3); }

/* ---------- 表单 ---------- */
.form-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 12px 16px; }
.field label { display: block; font-size: 12px; color: var(--text-2); margin-bottom: 5px; }
.field input, .field select {
  width: 100%; padding: 8px 11px;
  background: #0d1218; color: var(--text);
  border: 1px solid var(--line-soft); border-radius: 8px;
  font-size: 14px; font-family: var(--mono);
  outline: none; transition: border-color .15s;
}
.field input:focus, .field select:focus { border-color: var(--accent); }
.field .hint { font-size: 11px; color: var(--text-3); margin-top: 4px; }

/* ---------- 仪表盘 ---------- */
.stat-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; margin-bottom: 16px; }
.stat {
  background: linear-gradient(180deg, var(--panel) 0%, var(--bg-2) 100%);
  border: 1px solid var(--line-soft); border-radius: var(--radius);
  padding: 14px 16px;
}
.stat .k { font-size: 12px; color: var(--text-2); display: flex; align-items: center; gap: 6px; }
.stat .v { font-family: var(--mono); font-size: 24px; font-weight: 700; margin-top: 4px; color: var(--accent-2); }
.stat .v small { font-size: 12px; color: var(--text-3); font-weight: 400; }
.stat .d { font-size: 11px; color: var(--text-3); margin-top: 2px; }

.radar-wrap { display: flex; gap: 22px; align-items: center; flex-wrap: wrap; }
.radar-wrap canvas { flex: 0 0 auto; }
.radar-legend { flex: 1; min-width: 220px; }
.radar-legend .row {
  display: flex; align-items: center; gap: 10px;
  padding: 7px 0; border-bottom: 1px dashed var(--line-soft);
  font-size: 13px;
}
.radar-legend .row:last-child { border-bottom: none; }
.radar-legend .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--accent); }
.radar-legend .score { margin-left: auto; font-family: var(--mono); color: var(--accent-2); }
.radar-legend .go { font-size: 11px; }

.verdict-line { display: flex; gap: 10px; align-items: flex-start; padding: 9px 0; border-bottom: 1px dashed var(--line-soft); }
.verdict-line:last-child { border-bottom: none; }
.verdict-line .ico { flex: 0 0 20px; }

.hist-row {
  display: flex; align-items: center; gap: 12px;
  padding: 8px 4px; border-bottom: 1px dashed var(--line-soft);
  font-size: 12.5px;
}
.hist-row:last-child { border-bottom: none; }
.hist-row .t { color: var(--text-3); font-family: var(--mono); font-size: 11px; }
.hist-row .name { flex: 1; }
.hist-row .score { font-family: var(--mono); color: var(--accent-2); }

/* ---------- 五维测试 ---------- */
.test-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); gap: 16px; }
.test-card {
  background: linear-gradient(180deg, var(--panel) 0%, var(--bg-2) 100%);
  border: 1px solid var(--line-soft); border-radius: var(--radius);
  padding: 18px; display: flex; flex-direction: column; gap: 10px;
  transition: border-color .15s, transform .15s;
}
.test-card:hover { border-color: var(--line); transform: translateY(-2px); }
.test-card .head { display: flex; align-items: center; gap: 10px; }
.test-card .icon {
  width: 40px; height: 40px; border-radius: 9px;
  display: grid; place-items: center; font-size: 19px;
  background: rgba(255, 122, 26, .12); border: 1px solid var(--line);
}
.test-card .name { font-size: 15px; font-weight: 700; }
.test-card .en { font-size: 10px; color: var(--text-3); font-family: var(--mono); letter-spacing: 1px; }
.test-card .desc { color: var(--text-2); font-size: 12.5px; flex: 1; }
.test-card .meta { display: flex; gap: 8px; flex-wrap: wrap; }
.test-card .foot { display: flex; align-items: center; gap: 10px; margin-top: 4px; }
.test-card .best { margin-left: auto; font-family: var(--mono); font-size: 12px; color: var(--olive); }

/* ---------- 测试覆盖层 ---------- */
#test-overlay {
  position: fixed; inset: 0; z-index: 100;
  background: #07090c;
  display: none;
}
#test-overlay.on { display: block; }
#test-canvas { position: absolute; inset: 0; width: 100%; height: 100%; cursor: crosshair; }

.hud { position: absolute; top: 0; left: 0; right: 0; display: flex; padding: 16px 22px; pointer-events: none; z-index: 5; }
.hud .box { background: rgba(10, 13, 17, .75); border: 1px solid var(--line-soft); border-radius: 8px; padding: 6px 14px; font-family: var(--mono); font-size: 13px; }
.hud .center { margin: 0 auto; text-align: center; }
.hud .big { font-size: 22px; color: var(--accent-2); font-weight: 700; }
.hud .right { margin-left: auto; color: var(--text-3); font-size: 11px; }

.hud-bottom {
  position: absolute; bottom: 22px; left: 50%; transform: translateX(-50%);
  background: rgba(10, 13, 17, .8); border: 1px solid var(--line-soft);
  border-radius: 8px; padding: 8px 18px;
  color: var(--text-2); font-size: 13px; pointer-events: none; z-index: 5;
  max-width: 80vw; text-align: center;
}

.test-panel {
  position: absolute; inset: 0; z-index: 20;
  display: none; place-items: center;
  background: rgba(7, 9, 12, .9); backdrop-filter: blur(4px);
}
.test-panel.on { display: grid; }
.test-panel .inner {
  width: min(680px, 92vw); max-height: 88vh; overflow-y: auto;
  background: linear-gradient(180deg, var(--panel) 0%, var(--bg-2) 100%);
  border: 1px solid var(--line); border-radius: 14px;
  padding: 28px 30px; box-shadow: var(--shadow);
}
.test-panel h2 { font-size: 20px; margin-bottom: 4px; display: flex; align-items: center; gap: 10px; }
.test-panel .en { color: var(--text-3); font-family: var(--mono); font-size: 11px; letter-spacing: 2px; margin-bottom: 16px; }
.test-panel .steps { margin: 14px 0; }
.test-panel .steps li { margin: 7px 0 7px 20px; color: var(--text-2); font-size: 13.5px; }
.test-panel .steps li b { color: var(--text); }
.test-panel .warnline {
  background: rgba(250, 173, 20, .08); border: 1px solid rgba(250, 173, 20, .25);
  border-radius: 8px; padding: 9px 13px; color: var(--warn); font-size: 12.5px; margin: 12px 0;
}
.test-panel .actions { display: flex; gap: 10px; margin-top: 18px; }

.metric-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(130px, 1fr)); gap: 10px; margin: 14px 0; }
.metric {
  background: #0d1218; border: 1px solid var(--line-soft);
  border-radius: 9px; padding: 10px 12px; text-align: center;
}
.metric .k { font-size: 11px; color: var(--text-3); }
.metric .v { font-family: var(--mono); font-size: 20px; font-weight: 700; color: var(--accent-2); margin-top: 2px; }
.metric .v small { font-size: 11px; color: var(--text-3); font-weight: 400; }

.diag-line { display: flex; gap: 9px; padding: 7px 0; font-size: 13px; border-bottom: 1px dashed var(--line-soft); }
.diag-line:last-child { border-bottom: none; }
.diag-line .dot { flex: 0 0 9px; width: 9px; height: 9px; border-radius: 50%; margin-top: 7px; }
.diag-line.good .dot { background: var(--good); }
.diag-line.warn .dot { background: var(--warn); }
.diag-line.bad .dot { background: var(--bad); }

.score-banner {
  display: flex; align-items: center; gap: 16px;
  background: rgba(255, 122, 26, .07); border: 1px solid var(--line);
  border-radius: 10px; padding: 12px 18px; margin: 14px 0;
}
.score-banner .num { font-family: var(--mono); font-size: 34px; font-weight: 800; color: var(--accent); }
.score-banner .lbl { font-size: 12px; color: var(--text-2); }

/* ---------- 表格 ---------- */
table.tbl { width: 100%; border-collapse: collapse; font-size: 13px; }
.tbl th {
  text-align: left; padding: 9px 12px; color: var(--text-3);
  font-size: 11px; letter-spacing: 1px; font-weight: 600;
  border-bottom: 1px solid var(--line);
  white-space: nowrap;
}
.tbl td { padding: 9px 12px; border-bottom: 1px solid var(--line-soft); }
.tbl tr:hover td { background: rgba(255, 122, 26, .04); }
.tbl .mono { font-family: var(--mono); }
.tbl-wrap { overflow-x: auto; }

/* ---------- 指南 ---------- */
.tabs { display: flex; gap: 6px; margin-bottom: 16px; flex-wrap: wrap; }
.tab {
  padding: 7px 16px; border-radius: 8px; cursor: pointer; user-select: none;
  border: 1px solid var(--line-soft); color: var(--text-2); font-size: 13px;
  background: var(--panel);
}
.tab:hover { color: var(--text); }
.tab.active { color: var(--accent-2); border-color: var(--line); background: rgba(255, 122, 26, .1); }
.guide-item {
  display: flex; gap: 14px; align-items: flex-start;
  padding: 13px 4px; border-bottom: 1px dashed var(--line-soft);
}
.guide-item:last-child { border-bottom: none; }
.guide-item .body { flex: 1; }
.guide-item .t { font-weight: 600; font-size: 13.5px; margin-bottom: 3px; }
.guide-item .d { color: var(--text-2); font-size: 12.5px; }
.guide-item .tag {
  flex: 0 0 auto; align-self: center;
  font-family: var(--mono); font-size: 11px; color: var(--olive);
  border: 1px solid rgba(163, 184, 107, .3); border-radius: 6px; padding: 3px 9px;
  background: rgba(163, 184, 107, .07); white-space: nowrap;
}

/* ---------- 训练 ---------- */
.plan-day {
  display: flex; gap: 14px; align-items: center;
  padding: 12px 14px; border: 1px solid var(--line-soft); border-radius: 10px;
  margin-bottom: 10px; background: var(--panel);
}
.plan-day .mins {
  flex: 0 0 62px; text-align: center;
  font-family: var(--mono); color: var(--accent-2);
  border-right: 1px dashed var(--line-soft); padding-right: 14px;
}
.plan-day .mins b { font-size: 20px; }
.plan-day .mins small { display: block; color: var(--text-3); font-size: 10px; }
.plan-day .body { flex: 1; }
.plan-day .name { font-weight: 700; font-size: 13.5px; }
.plan-day .desc { color: var(--text-2); font-size: 12.5px; }

.notice {
  border: 1px solid rgba(57, 197, 207, .25); background: rgba(57, 197, 207, .06);
  color: #9fd9de; border-radius: 10px; padding: 12px 16px; font-size: 12.5px;
  margin-bottom: 16px;
}
.notice b { color: var(--cyan); }

.toast {
  position: fixed; bottom: 26px; left: 50%; transform: translateX(-50%) translateY(20px);
  background: #18202a; border: 1px solid var(--line); color: var(--text);
  padding: 10px 20px; border-radius: 9px; z-index: 300;
  opacity: 0; pointer-events: none; transition: all .25s;
  font-size: 13px; box-shadow: var(--shadow);
}
.toast.on { opacity: 1; transform: translateX(-50%) translateY(0); }

.kv { display: flex; justify-content: space-between; padding: 6px 0; border-bottom: 1px dashed var(--line-soft); font-size: 13px; }
.kv:last-child { border-bottom: none; }
.kv .k { color: var(--text-2); }
.kv .v { font-family: var(--mono); }

.empty {
  text-align: center; color: var(--text-3); padding: 30px 10px;
  border: 1px dashed var(--line-soft); border-radius: 10px; font-size: 13px;
}

/* ---------- 响应式 ---------- */
@media (max-width: 1080px) {
  .grid.c4, .stat-grid { grid-template-columns: repeat(2, 1fr); }
  .grid.c3 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 860px) {
  .sidebar { width: 64px; flex-basis: 64px; }
  .sidebar .brand .txt, .sidebar .sub, .nav-item .lbl, .nav-item .num, .nav-group, .sidebar-foot { display: none; }
  .nav-item { justify-content: center; padding: 10px; }
  .grid.c2, .grid.c3, .grid.c4, .stat-grid { grid-template-columns: 1fr; }
  .content { padding: 16px 14px 50px; }
}