/* ═══════════════════════════════════════════════════════════
   AuraPulse v2.20 — Shared Stylesheet
   所有子页面共用：index.html / ccmq.html / analysis.html
   ═══════════════════════════════════════════════════════════ */

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

/* ── Theme ── */
:root {
  --bg: #0f1117; --card: #1a1d27; --border: #2a2d3e;
  --text: #e2e8f0; --muted: #8892a4; --accent: #3a86ff;
  --hrv: #3a86ff; --sleep: #7b2fbe; --steps: #2ecc71;
  --red: #ff6b6b; --green: #06d6a0; --yellow: #f39c12; --orange: #e07b54;
  --radius: 12px; --shadow: 0 4px 24px rgba(0,0,0,0.4);
}
body.light {
  --bg: #f4f6fb; --card: #ffffff; --border: #dde3ee;
  --text: #1a1d27; --muted: #6b7280; --accent: #2563eb;
  --hrv: #2563eb; --sleep: #7c3aed; --steps: #16a34a;
  --red: #dc2626; --green: #059669; --yellow: #d97706; --orange: #e07b54;
  --shadow: 0 4px 24px rgba(0,0,0,0.08);
}

body {
  background: var(--bg); color: var(--text);
  font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
  min-height: 100vh; transition: background .25s, color .25s;
  line-height: 1.6;
}

/* ── Layout ── */
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

/* ── Header / Nav ── */
.top-nav {
  display: flex; align-items: center; justify-content: space-between;
  padding: 18px 32px; background: var(--card); border-bottom: 1px solid var(--border);
  position: sticky; top: 0; z-index: 100;
}
.top-nav .logo { font-size: 1.2rem; font-weight: 700; color: var(--text); text-decoration: none; }
.top-nav .logo span { color: var(--accent); }
.top-nav .nav-links { display: flex; gap: 6px; align-items: center; }
.top-nav .nav-links a, .top-nav .nav-links button {
  padding: 8px 16px; border-radius: 8px; font-size: .85rem; font-weight: 600;
  text-decoration: none; color: var(--muted); background: transparent;
  border: 1px solid transparent; cursor: pointer; transition: all .2s;
}
.top-nav .nav-links a:hover, .top-nav .nav-links button:hover { color: var(--text); border-color: var(--border); }
.top-nav .nav-links a.active { color: var(--accent); border-color: var(--accent); background: rgba(58,134,255,0.08); }
/* ── Nav Account ── */
.nav-account { position: relative; }
.nav-avatar-btn {
  display: flex; align-items: center; gap: 8px; padding: 6px 12px;
  border-radius: 99px; font-size: .84rem; font-weight: 600;
  color: var(--text); cursor: pointer; background: transparent;
  border: 1px solid var(--border); transition: all .2s; white-space: nowrap;
  font-family: inherit;
}
.nav-avatar-btn:hover { border-color: var(--accent); }
.nav-avatar-btn .avatar-dot {
  width: 28px; height: 28px; border-radius: 50%;
  background: var(--accent); color: #fff; font-weight: 700;
  display: flex; align-items: center; justify-content: center;
  font-size: .85rem; flex-shrink: 0;
}
.nav-login-btn {
  padding: 7px 18px; border-radius: 99px; font-size: .84rem; font-weight: 600;
  text-decoration: none; color: var(--accent); background: transparent;
  border: 1px solid var(--accent); cursor: pointer; transition: all .2s;
  white-space: nowrap;
}
.nav-login-btn:hover { background: var(--accent); color: #fff; }

.account-dropdown {
  display: none; position: absolute; top: calc(100% + 8px); right: 0;
  background: var(--card); border: 1px solid var(--border); border-radius: 10px;
  min-width: 170px; box-shadow: var(--shadow); z-index: 300; overflow: hidden;
}
.account-dropdown.active { display: block; }
.account-dropdown a, .account-dropdown button {
  display: block; width: 100%; padding: 10px 16px; font-size: .85rem;
  color: var(--text); text-decoration: none; text-align: left; cursor: pointer;
  background: transparent; border: none; font-family: inherit;
  transition: background .15s;
}
.account-dropdown a:hover, .account-dropdown button:hover { background: rgba(58,134,255,0.08); }
.account-dropdown .divider { height: 1px; background: var(--border); margin: 4px 0; }

/* ── Auth Modal (登录/注册悬浮窗口) ── */
.auth-tabs { display: flex; margin-bottom: 20px; border-bottom: 2px solid var(--border); }
.auth-tab {
  flex: 1; padding: 10px; text-align: center; cursor: pointer; font-weight: 600;
  font-size: .9rem; color: var(--muted); background: none; border: none;
  border-bottom: 2px solid transparent; margin-bottom: -2px; transition: all .15s; font-family: inherit;
}
.auth-tab.active { color: var(--accent); border-bottom-color: var(--accent); }
.auth-form { display: none; }
.auth-form.active { display: block; }
.auth-form .row { display: grid; gap: 10px; }
.auth-form .row-2 { grid-template-columns: 1fr 1fr; }
.auth-form .row-3 { grid-template-columns: 1fr 1fr 1fr; }
.auth-form .btn-full {
  width: 100%; padding: 11px; background: var(--accent); border: none; border-radius: 8px;
  color: #fff; font-size: .92rem; font-weight: 700; cursor: pointer; margin-top: 4px;
}
.auth-form .btn-full:hover { opacity: .85; }
.auth-msg { text-align: center; font-size: .84rem; margin-top: 10px; min-height: 20px; }

/* ── Floating Theme Toggle ── */
#theme-float {
  position: fixed; bottom: 24px; right: 24px; z-index: 500;
  width: 44px; height: 44px; border-radius: 50%;
  background: var(--card); border: 1px solid var(--border);
  color: var(--text); font-size: 1.1rem; cursor: pointer;
  box-shadow: var(--shadow); transition: all .2s;
  display: flex; align-items: center; justify-content: center;
}
#theme-float:hover { border-color: var(--accent); transform: scale(1.08); }

/* ── Hero / Cards ── */
.hero { text-align: center; padding: 80px 24px 60px; }
.hero h1 { font-size: 2.4rem; font-weight: 700; letter-spacing: -1px; margin-bottom: 14px; }
.hero h1 span { color: var(--accent); }
.hero p { color: var(--muted); font-size: 1.05rem; max-width: 620px; margin: 0 auto 32px; line-height: 1.6; }

.feature-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 20px; max-width: 960px; margin: 0 auto; padding: 0 24px 60px; }
.feature-card {
  background: var(--card); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 32px 28px; text-decoration: none; display: block; transition: all .25s; cursor: pointer;
}
.feature-card:hover { border-color: var(--accent); transform: translateY(-3px); box-shadow: var(--shadow); }
.feature-card .card-icon { font-size: 2.4rem; margin-bottom: 14px; }
.feature-card h3 { color: var(--text); font-size: 1.15rem; margin-bottom: 8px; }
.feature-card p { color: var(--muted); font-size: .9rem; line-height: 1.5; }

/* ── Page Header ── */
.page-header { text-align: center; padding: 48px 24px 32px; }
.page-header h1 { font-size: 1.8rem; font-weight: 700; }
.page-header h1 span { color: var(--accent); }
.page-header p { color: var(--muted); font-size: .95rem; margin-top: 8px; }

/* ── Upload Zone ── */
.upload-section { padding: 20px 0 32px; }
.drop-zone {
  border: 2px dashed var(--border); border-radius: var(--radius);
  padding: 48px; text-align: center; cursor: pointer;
  transition: all .25s; background: var(--card);
}
.drop-zone:hover, .drop-zone.drag-over { border-color: var(--accent); background: rgba(58,134,255,0.06); }
.drop-zone svg { opacity: .45; margin-bottom: 12px; }
.drop-zone h3 { font-size: 1rem; margin-bottom: 6px; }
.drop-zone p { color: var(--muted); font-size: .85rem; }
.drop-zone input[type=file] { display: none; }
.btn-upload {
  margin-top: 18px; padding: 10px 28px; background: var(--accent);
  border: none; border-radius: 8px; color: #fff; font-size: .9rem;
  font-weight: 600; cursor: pointer; transition: opacity .2s;
}
.btn-upload:hover { opacity: .85; }

/* ── Status ── */
.status-bar { padding: 0 0 16px; }
.progress-wrap { background: var(--border); border-radius: 99px; height: 6px; overflow: hidden; display: none; margin-bottom: 12px; }
.progress-bar { height: 100%; width: 0%; background: var(--accent); transition: width .4s; }
.error-msg { color: var(--red); font-size: .88rem; display: none; padding: 10px 0; }

/* ── Tabs ── */
.tab-bar { display: flex; gap: 6px; margin-bottom: 24px; border-bottom: 1px solid var(--border); flex-wrap: wrap; }
.tab-btn {
  padding: 10px 20px; background: transparent; border: none; border-radius: 8px 8px 0 0;
  color: var(--muted); font-size: .88rem; font-weight: 600; cursor: pointer;
  border-bottom: 3px solid transparent; transition: all .2s; margin-bottom: -1px;
}
.tab-btn.active { color: var(--text); }
.tab-btn[data-tab="hrv"].active { border-bottom-color: var(--hrv); color: var(--hrv); }
.tab-btn[data-tab="recovery"].active { border-bottom-color: #8B5CF6; color: #8B5CF6; }
.tab-btn[data-tab="sleep"].active { border-bottom-color: var(--sleep); color: var(--sleep); }
.tab-btn[data-tab="steps"].active { border-bottom-color: var(--steps); color: var(--steps); }
.tab-panel { display: none; }
.tab-panel.active { display: block; }

/* ── Stats Row ── */
.stats-row { display: grid; grid-template-columns: repeat(auto-fit, minmax(145px, 1fr)); gap: 12px; margin-bottom: 24px; }
.stat-card {
  background: var(--card); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 16px; text-align: center;
}
.stat-card.wide { grid-column: span 2; }
.stat-card .val { font-size: 1.5rem; font-weight: 700; }
.stat-card .lbl { font-size: .76rem; color: var(--muted); margin-top: 4px; }

/* ── Chart Grid ── */
.chart-grid { display: grid; grid-template-columns: 1fr; gap: 18px; }
.chart-grid.two-col { grid-template-columns: 1fr 1fr; }
.chart-wrap {
  background: var(--card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 20px 20px 12px;
}
.chart-wrap h4 { font-size: .85rem; color: var(--muted); margin-bottom: 12px; font-weight: 600; text-transform: uppercase; letter-spacing: .4px; }
.chart-wrap canvas { max-height: 260px; }
.chart-wrap.tall canvas { max-height: 320px; }

/* ── Recovery Card ── */
.recovery-banner { border-radius: var(--radius); padding: 20px 26px; color: white; display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 14px; box-shadow: var(--shadow); margin-bottom: 20px; }
.recovery-banner .rc-main h3 { font-size: .82rem; font-weight: 600; opacity: .85; margin-bottom: 2px; }
.recovery-banner .rc-main .rc-status { font-size: 1.4rem; font-weight: 700; }
.recovery-banner .rc-metrics { display: flex; gap: 20px; flex-wrap: wrap; }
.recovery-banner .rc-metric { text-align: center; }
.recovery-banner .rc-metric .val { font-size: 1.2rem; font-weight: 700; }
.recovery-banner .rc-metric .lbl { font-size: .7rem; opacity: .75; }

/* ── Insights / Panels ── */
.insight-box {
  background: linear-gradient(135deg, rgba(58,134,255,0.08), rgba(139,92,246,0.08));
  border: 1px solid var(--border); border-radius: var(--radius); padding: 18px 22px; margin-bottom: 18px;
}
.insight-box .insight-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 10px; }
.insight-box .insight-header h4 { font-size: .85rem; color: var(--accent); margin: 0; text-transform: uppercase; letter-spacing: .4px; }
.insight-box .insight-body { font-size: .92rem; line-height: 1.6; }
.insight-box .layer { margin-bottom: 6px; padding: 5px 10px; border-radius: 6px; }
.insight-box .layer.status { background: rgba(58,134,255,0.1); font-weight: 600; }
.insight-box .layer.causes { background: rgba(245,158,11,0.08); }
.insight-box .layer.actions { background: rgba(34,197,94,0.08); }
.insight-box .layer.disclaimer { background: rgba(255,107,107,0.06); font-size: .78rem; color: var(--muted); font-style: italic; }

/* ── Action Bar ── */
.action-bar { display: flex; gap: 8px; margin-bottom: 18px; flex-wrap: wrap; }
.btn {
  padding: 8px 15px; border-radius: 8px; font-size: .83rem; font-weight: 600; cursor: pointer;
  border: 1px solid var(--border); background: var(--card); color: var(--text);
  display: inline-flex; align-items: center; gap: 5px; transition: all .2s; text-decoration: none;
}
.btn:hover { border-color: var(--accent); color: var(--accent); }
.btn.primary { background: var(--accent); border-color: var(--accent); color: white; }
.btn.primary:hover { opacity: .85; color: white; }
.btn.warn { background: var(--yellow); border-color: var(--yellow); color: white; }
.btn.warn:hover { opacity: .85; color: white; }
.btn.success { background: var(--green); border-color: var(--green); color: white; }
.btn.success:hover { opacity: .85; color: white; }

/* ── Modal ── */
.modal-overlay {
  display: none; position: fixed; top: 0; left: 0; width: 100%; height: 100%;
  background: rgba(0,0,0,0.55); z-index: 1000; align-items: center; justify-content: center;
}
.modal-overlay.active { display: flex; }
.modal-box {
  background: var(--card); border-radius: var(--radius); padding: 26px 28px;
  width: 90%; max-width: 520px; border: 1px solid var(--border); box-shadow: var(--shadow);
  max-height: 85vh; overflow-y: auto;
}
.modal-box.wide { max-width: 700px; }
.modal-box h3 { color: var(--text); margin-bottom: 16px; font-size: 1.05rem; }
.modal-box .form-group { margin-bottom: 12px; }
.modal-box label { display: block; color: var(--muted); font-size: .82rem; margin-bottom: 4px; }
.modal-box input, .modal-box select, .modal-box textarea {
  width: 100%; padding: 8px 12px; background: var(--bg); border: 1px solid var(--border);
  border-radius: 8px; color: var(--text); font-family: inherit; font-size: .88rem;
}
.modal-box textarea { resize: none; }
.modal-box .range-row { display: flex; align-items: center; gap: 10px; }
.modal-box .range-row input[type=range] { flex: 1; accent-color: var(--accent); padding: 0; }
.modal-box .range-row .range-val { font-weight: 700; font-size: 1.1rem; min-width: 28px; text-align: center; color: var(--accent); }
.modal-box .tag-grid { display: flex; flex-wrap: wrap; gap: 7px; margin-top: 4px; }
.modal-box .tag-chip {
  padding: 4px 11px; border-radius: 99px; font-size: .78rem; cursor: pointer;
  border: 1px solid var(--border); color: var(--muted); background: var(--bg); transition: all .2s; user-select: none;
}
.modal-box .tag-chip.selected { background: var(--accent); border-color: var(--accent); color: white; }
.modal-box .btn-row { display: flex; gap: 8px; justify-content: flex-end; margin-top: 18px; }
.modal-box .btn-row button {
  padding: 8px 18px; border-radius: 8px; font-size: .88rem; font-weight: 600; cursor: pointer; border: none;
}

/* ── CCMQ Scale ── */
.ccmq-item {
  padding: 12px 0; border-bottom: 1px solid var(--border);
}
.ccmq-item .ccmq-q { font-weight: 600; margin-bottom: 6px; font-size: .92rem; }
.ccmq-scale-row { display: flex; gap: 6px; }
.ccmq-opt {
  flex: 1; text-align: center; cursor: pointer; padding: 6px 2px; border-radius: 6px;
  font-size: .7rem; transition: all .15s; user-select: none;
  border: 1px solid var(--border); background: var(--bg); color: var(--muted);
}
.ccmq-opt.selected { background: var(--accent); border-color: var(--accent); color: white; }
.ccmq-opt .opt-val { font-weight: 700; font-size: .85rem; }
.ccmq-opt .opt-lbl { font-size: .6rem; margin-top: 1px; }

/* ── Cold Start / Banner ── */
.info-banner {
  background: linear-gradient(135deg, rgba(59,130,246,0.1), rgba(139,92,246,0.1));
  border: 1px solid var(--border); border-radius: var(--radius);
  padding: 16px 22px; text-align: center; margin-bottom: 18px;
}
.info-banner h3 { font-size: .95rem; color: var(--accent); margin-bottom: 4px; }
.info-banner p { font-size: .84rem; color: var(--muted); }

/* ── Footer ── */
.page-footer { text-align: center; padding: 28px; color: var(--muted); font-size: .82rem; border-top: 1px solid var(--border); margin-top: 40px; }

/* ── Responsive ── */
@media (max-width: 768px) {
  .top-nav { padding: 14px 18px; }
  .chart-grid.two-col { grid-template-columns: 1fr; }
  .stats-row { grid-template-columns: repeat(2, 1fr); }
  .hero h1 { font-size: 1.7rem; }
  .feature-grid { grid-template-columns: 1fr; }
  .recovery-banner .rc-metrics { gap: 10px; }
}


/* ═══════ 历史数据列表（v2.29） ═══════ */
.history-item { display:flex; justify-content:space-between; align-items:center; padding:12px 14px; border:1px solid var(--border); border-radius:8px; margin-bottom:8px; cursor:pointer; background:var(--bg); transition:all .15s; }
.history-item:hover { border-color:var(--accent); background:rgba(59,130,246,.05); }
.history-window { font-weight:600; color:var(--text); }
.history-time { font-size:.8rem; color:var(--muted); }