/* ============================================================
   菲律宾店铺数据驾驶舱 — Design System
   Light theme · WCAG AA · Mobile-first · Zero dependencies
   ============================================================ */
:root {
  --bg: #eef1f6;
  --surface: #ffffff;
  --surface-2: #f7f9fc;
  --border: #e2e8f0;
  --border-strong: #cbd5e1;
  --text: #0f172a;
  --text-2: #475569;
  --text-3: #94a3b8;
  --primary: #4f46e5;
  --primary-soft: #eef2ff;
  --accent: #0ea5e9;
  --teal: #14b8a6;
  --green: #16a34a;
  --green-soft: #dcfce7;
  --red: #dc2626;
  --red-soft: #fee2e2;
  --amber: #d97706;
  --amber-soft: #fef3c7;
  --purple: #7c3aed;
  --shadow: 0 1px 3px rgba(15,23,42,.06), 0 8px 24px rgba(15,23,42,.05);
  --shadow-sm: 0 1px 2px rgba(15,23,42,.06);
  --radius: 16px;
  --radius-sm: 10px;
  --gap: 18px;
  --font: "Segoe UI", system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
  font-size: 14px;
}
h1, h2, h3 { margin: 0; font-weight: 650; letter-spacing: -.01em; }
p { margin: 0; }
a { color: var(--primary); }

.skip-link {
  position: absolute; left: -999px; top: 0; background: var(--primary); color: #fff;
  padding: 8px 14px; border-radius: 8px; z-index: 100;
}
.skip-link:focus { left: 12px; top: 12px; }

/* ---------- Topbar ---------- */
.topbar {
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  padding: 16px 24px;
  background: linear-gradient(120deg, #4f46e5, #7c3aed 60%, #0ea5e9);
  color: #fff;
  flex-wrap: wrap;
}
.brand { display: flex; align-items: center; gap: 14px; }
.brand-mark {
  width: 44px; height: 44px; border-radius: 12px; display: grid; place-items: center;
  background: rgba(255,255,255,.18); font-size: 22px; backdrop-filter: blur(4px);
}
.brand-text h1 { font-size: 19px; font-weight: 700; }
.brand-text p { font-size: 12.5px; opacity: .85; margin-top: 2px; }
.topbar-meta { display: flex; gap: 10px; flex-wrap: wrap; }
.meta-chip {
  background: rgba(255,255,255,.14); border: 1px solid rgba(255,255,255,.18);
  padding: 6px 12px; border-radius: 10px; display: flex; flex-direction: column; min-width: 78px;
}
.meta-k { font-size: 10.5px; opacity: .8; text-transform: uppercase; letter-spacing: .04em; }
.meta-v { font-size: 13px; font-weight: 600; }

/* ---------- Tabs ---------- */
.tabs {
  display: flex; gap: 4px; padding: 10px 16px 0; overflow-x: auto;
  background: var(--surface); border-bottom: 1px solid var(--border);
  position: sticky; top: 0; z-index: 20;
}
.tab {
  border: none; background: none; font-family: inherit; font-size: 14px; font-weight: 600;
  color: var(--text-2); padding: 12px 18px; cursor: pointer; white-space: nowrap;
  border-bottom: 3px solid transparent; border-radius: 8px 8px 0 0; transition: .15s;
}
.tab:hover { color: var(--primary); background: var(--surface-2); }
.tab.active { color: var(--primary); border-bottom-color: var(--primary); background: var(--primary-soft); }
.tab:focus-visible { outline: 2px solid var(--primary); outline-offset: -2px; }

/* ---------- Layout ---------- */
.container { max-width: 1240px; margin: 0 auto; padding: 22px 18px 40px; }
.tab-panel { animation: fade .25s ease; }
.tab-panel[hidden] { display: none; }
@keyframes fade { from { opacity: 0; transform: translateY(4px);} to { opacity: 1; transform: none; } }

.panel-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--gap); margin-top: var(--gap); }
.span-2 { grid-column: span 2; }
.span-3 { grid-column: span 3; }

/* ---------- Cards ---------- */
.card {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 18px; box-shadow: var(--shadow);
}
.card-head { display: flex; align-items: baseline; justify-content: space-between; margin-bottom: 12px; gap: 10px; flex-wrap: wrap; }
.card-head h2 { font-size: 15px; }
.card-sub { font-size: 12px; color: var(--text-3); }

/* ---------- KPI ---------- */
.kpi-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--gap); }
.kpi {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 16px 18px; box-shadow: var(--shadow); position: relative; overflow: hidden;
}
.kpi::before { content:""; position: absolute; left:0; top:0; bottom:0; width:4px; background: var(--primary); }
.kpi.k-green::before { background: var(--green); }
.kpi.k-amber::before { background: var(--amber); }
.kpi.k-teal::before { background: var(--teal); }
.kpi.k-purple::before { background: var(--purple); }
.kpi.k-sky::before { background: var(--accent); }
.kpi-label { font-size: 12px; color: var(--text-2); display: flex; align-items: center; gap: 6px; }
.kpi-value { font-size: 24px; font-weight: 750; margin-top: 6px; letter-spacing: -.02em; }
.kpi-delta { font-size: 12px; margin-top: 4px; font-weight: 600; }
.kpi-delta.up { color: var(--green); }
.kpi-delta.down { color: var(--red); }
.kpi-delta.flat { color: var(--text-3); }

/* ---------- Charts ---------- */
.chart-wrap { width: 100%; }
.chart-wrap svg { width: 100%; height: auto; display: block; }
.donut-wrap { display: flex; align-items: center; justify-content: center; }
.legend { display: flex; flex-wrap: wrap; gap: 10px 16px; margin-top: 10px; font-size: 12px; }
.legend-item { display: flex; align-items: center; gap: 6px; color: var(--text-2); }
.legend-dot { width: 10px; height: 10px; border-radius: 3px; }

/* ---------- Table ---------- */
.table-scroll { overflow-x: auto; }
.data-table { width: 100%; border-collapse: collapse; font-size: 13px; min-width: 520px; }
.data-table th, .data-table td { padding: 9px 12px; text-align: right; border-bottom: 1px solid var(--border); white-space: nowrap; }
.data-table th:first-child, .data-table td:first-child { text-align: left; }
.data-table thead th { background: var(--surface-2); color: var(--text-2); font-weight: 600; position: sticky; top: 0; }
.data-table tbody tr:hover { background: var(--surface-2); }
.data-table tbody tr:nth-child(even) { background: #fafbfd; }
.data-table tbody tr:nth-child(even):hover { background: var(--surface-2); }
.val-pos { color: var(--green); font-weight: 600; }
.val-neg { color: var(--red); font-weight: 600; }

/* ---------- Daily ---------- */
.daily-layout { display: grid; grid-template-columns: 240px 1fr; gap: var(--gap); align-items: start; }
.daily-picker { position: sticky; top: 64px; }
.daily-picker h2 { font-size: 14px; margin-bottom: 10px; }
.date-list { display: flex; flex-direction: column; gap: 6px; max-height: 70vh; overflow-y: auto; }
.date-item {
  display: flex; justify-content: space-between; align-items: center; gap: 8px;
  padding: 9px 11px; border-radius: 10px; cursor: pointer; border: 1px solid transparent;
  background: var(--surface-2); font-size: 13px; transition: .12s; text-align: left; width: 100%;
}
.date-item:hover { border-color: var(--border-strong); }
.date-item.active { background: var(--primary-soft); border-color: var(--primary); color: var(--primary); font-weight: 600; }
.date-item .di-date { font-weight: 600; }
.date-item .di-sales { font-size: 11.5px; color: var(--text-3); }
.date-item.active .di-sales { color: var(--primary); }

.hero-card { margin-bottom: var(--gap); }
.hero-top { display: flex; align-items: baseline; justify-content: space-between; flex-wrap: wrap; gap: 8px; }
.hero-date { font-size: 18px; font-weight: 700; }
.hero-weekday { font-size: 13px; color: var(--text-3); margin-left: 8px; }
.hero-sales { font-size: 30px; font-weight: 800; letter-spacing: -.02em; }
.hero-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; margin-top: 14px; }
.hero-stat { background: var(--surface-2); border-radius: 12px; padding: 12px; }
.hero-stat .hs-k { font-size: 12px; color: var(--text-2); }
.hero-stat .hs-v { font-size: 18px; font-weight: 700; margin-top: 3px; }
.hero-stat .hs-d { font-size: 12px; font-weight: 600; margin-top: 2px; }

/* ---------- Brief / Notes text ---------- */
.brief-body { font-size: 14px; line-height: 1.7; color: var(--text); }
.brief-body h3 { font-size: 14px; margin: 14px 0 6px; color: var(--primary); }
.brief-body ul { margin: 6px 0; padding-left: 20px; }
.brief-body li { margin: 4px 0; }
.brief-body .pos { color: var(--green); font-weight: 600; }
.brief-body .neg { color: var(--red); font-weight: 600; }
.brief-body .hl { background: var(--amber-soft); padding: 0 4px; border-radius: 4px; }
.note-item { display: flex; gap: 10px; padding: 10px 0; border-bottom: 1px dashed var(--border); }
.note-item:last-child { border-bottom: none; }
.note-tag { background: var(--amber-soft); color: var(--amber); font-weight: 700; font-size: 11px; padding: 2px 8px; border-radius: 20px; height: fit-content; white-space: nowrap; }
.note-text { font-size: 13.5px; }
.note-meta { font-size: 11.5px; color: var(--text-3); }

/* ---------- AI ---------- */
.ai-intro { display: flex; gap: 16px; align-items: center; margin-bottom: var(--gap); }
.ai-badge { width: 52px; height: 52px; border-radius: 14px; background: linear-gradient(135deg,#7c3aed,#0ea5e9); display: grid; place-items: center; font-size: 26px; flex-shrink: 0; }
.ai-intro h2 { font-size: 17px; }
.ai-intro p { font-size: 13.5px; color: var(--text-2); margin-top: 4px; max-width: 880px; }
.ai-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--gap); }
.insight {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 18px; box-shadow: var(--shadow); border-left: 5px solid var(--primary); position: relative;
}
.insight.sev-good { border-left-color: var(--green); }
.insight.sev-warn { border-left-color: var(--amber); }
.insight.sev-bad { border-left-color: var(--red); }
.insight.sev-info { border-left-color: var(--accent); }
.insight-head { display: flex; align-items: center; justify-content: space-between; gap: 10px; margin-bottom: 8px; }
.insight-title { font-size: 15px; font-weight: 700; }
.insight-badge { font-size: 11px; font-weight: 700; padding: 3px 9px; border-radius: 20px; white-space: nowrap; }
.badge-good { background: var(--green-soft); color: var(--green); }
.badge-warn { background: var(--amber-soft); color: var(--amber); }
.badge-bad { background: var(--red-soft); color: var(--red); }
.badge-info { background: var(--primary-soft); color: var(--primary); }
.insight-body { font-size: 13.5px; color: var(--text-2); line-height: 1.65; }
.insight-body strong { color: var(--text); }
.insight-rec { margin-top: 10px; padding: 10px 12px; background: var(--surface-2); border-radius: 10px; font-size: 13px; }
.insight-rec b { color: var(--primary); }

/* ---------- Footer ---------- */
.footer { text-align: center; padding: 22px; font-size: 12px; color: var(--text-3); }

/* ---------- Responsive ---------- */
@media (max-width: 980px) {
  .panel-grid { grid-template-columns: repeat(2, 1fr); }
  .span-2, .span-3 { grid-column: span 2; }
  .kpi-grid { grid-template-columns: repeat(2, 1fr); }
  .ai-grid { grid-template-columns: 1fr; }
  .daily-layout { grid-template-columns: 1fr; }
  .daily-picker { position: static; }
  .date-list { flex-direction: row; flex-wrap: wrap; max-height: none; }
  .date-item { width: auto; }
  .hero-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 560px) {
  .panel-grid { grid-template-columns: 1fr; }
  .span-2, .span-3 { grid-column: span 1; }
  .kpi-grid { grid-template-columns: 1fr 1fr; }
  .topbar { padding: 14px 16px; }
  .container { padding: 16px 12px 32px; }
  .hero-sales { font-size: 24px; }
}

/* ---------- Tooltip ---------- */
.chart-tip {
  position: fixed; pointer-events: none; z-index: 50; background: #0f172a; color: #fff;
  font-size: 12px; padding: 7px 10px; border-radius: 8px; box-shadow: var(--shadow);
  transform: translate(-50%, -120%); opacity: 0; transition: opacity .1s; white-space: nowrap; max-width: 240px;
}
.chart-tip.show { opacity: 1; }
.chart-tip b { color: #a5b4fc; }

/* ---------- 控制栏 / 选择器 ---------- */
.control-bar {
  display: flex; align-items: center; gap: 10px; flex-wrap: wrap;
  padding: 12px 24px; background: #fff; border-bottom: 1px solid var(--border, #e9edf3);
  font-size: 14px; color: var(--text, #1f2937);
}
.control-bar label { font-weight: 600; }
.control-bar .select {
  flex: 0 1 280px; min-width: 200px; padding: 7px 10px; border: 1px solid #d6dbe3;
  border-radius: 8px; background: #fff; font-size: 14px; color: #1f2937;
}
.back-link { margin-left: auto; color: #4f46e5; text-decoration: none; font-weight: 600; }
.back-link:hover { text-decoration: underline; }
.loading { color: #2563eb; font-size: 13px; }
.error-banner {
  margin: 16px 24px; padding: 14px 18px; background: #fef2f2; color: #b91c1c;
  border: 1px solid #fecaca; border-radius: 10px; font-size: 14px;
}
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  padding: 9px 16px; border: none; border-radius: 9px; font-size: 14px; font-weight: 600;
  cursor: pointer; transition: transform .08s, box-shadow .15s, background .15s; text-decoration: none;
}
.btn:active { transform: translateY(1px); }
.btn-primary { background: #4f46e5; color: #fff; }
.btn-primary:hover { background: #4338ca; }
.btn-secondary { background: #eef2ff; color: #4338ca; }
.btn-secondary:hover { background: #e0e7ff; }
.btn-small { padding: 6px 12px; font-size: 13px; }
.control-label { font-weight: 600; color: #1f2937; }

/* ---------- 配置面板 ---------- */
.config-panel { max-width: 640px; margin: 40px auto; padding: 0 20px; }
.config-panel .card { background: #fff; border: 1px solid #e9edf3; border-radius: 12px; padding: 24px 28px; }
.config-panel h2 { font-size: 18px; margin: 0 0 8px; color: #1f2937; }
.config-panel .hint { font-size: 13px; color: #6b7280; margin: 0 0 20px; line-height: 1.5; }
.config-form { display: flex; flex-direction: column; gap: 14px; }
.config-form .form-group { display: flex; flex-direction: column; gap: 4px; }
.config-form .form-group label { font-size: 13px; font-weight: 600; color: #374151; }
.config-form .form-row { display: flex; gap: 14px; }
.config-form .form-row .form-group { flex: 1; }
.config-form .input {
  width: 100%; padding: 8px 12px; border: 1px solid #d6dbe3; border-radius: 8px;
  font-size: 14px; color: #1f2937; background: #fff; box-sizing: border-box;
  transition: border .15s;
}
.config-form .input:focus { outline: none; border-color: #4f46e5; box-shadow: 0 0 0 3px rgba(79,70,229,.12); }
.config-form .btn-primary { align-self: flex-start; margin-top: 6px; }