/* Polar replacement, light theme. Inspired by Claude.ai workbench + html-it palette. */
:root {
  --ink: #1a1612;
  --ink-soft: #4a423a;
  --ink-faint: #8a7f73;
  --paper: #faf7f2;
  --paper-warm: #f3ede2;
  --paper-card: #ffffff;
  --rule: #e5dcc9;
  --rule-soft: #efe8d8;
  --accent: #1b5965;       /* deep teal: technical / data */
  --accent-soft: #e1eef1;
  --green: #2f6b3c;
  --green-soft: #d6e7d6;
  --red: #a33327;
  --red-soft: #f0d6d2;
  --amber: #946b15;
  --amber-soft: #f3e6c4;
  --blue: #2a5a8a;
  --blue-soft: #d5e2f0;
  --purple: #5e3f86;
  --purple-soft: #e2d8ef;
  --sans: "Inter", -apple-system, BlinkMacSystemFont, system-ui, sans-serif;
  --mono: "JetBrains Mono", "SF Mono", Menlo, monospace;
  --shadow-sm: 0 1px 2px rgba(26,22,18,.06);
  --shadow-md: 0 4px 16px rgba(26,22,18,.08);
  --radius: 8px;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 14px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

/* App shell: left nav + main */
.app {
  display: grid;
  grid-template-columns: 244px minmax(0, 1fr);
  min-height: 100vh;
}
@media (max-width: 900px) {
  .app { grid-template-columns: minmax(0, 1fr); }
  .sidebar { display: none; }
  .sidebar.mobile-open { display: block; position: fixed; top: 0; left: 0; bottom: 0; width: 244px; z-index: 50; box-shadow: var(--shadow-md); }
}

/* === Sidebar === */
.sidebar {
  background: var(--paper-warm);
  border-right: 1px solid var(--rule);
  padding: 18px 14px;
  position: sticky;
  top: 0;
  height: 100vh;
  overflow-y: auto;
}
.sidebar .workspace {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px;
  border-radius: 8px;
  margin-bottom: 18px;
}
.sidebar .workspace .avatar {
  width: 32px; height: 32px; border-radius: 8px;
  background: var(--accent);
  color: white;
  display: flex; align-items: center; justify-content: center;
  font-weight: 600; font-size: 13px;
}
.sidebar .workspace .name { font-weight: 600; font-size: 14px; }
.sidebar .workspace .sub { font-size: 11px; color: var(--ink-faint); }

.nav-section { margin: 18px 0; }
.nav-section .label {
  font-size: 11px; text-transform: uppercase; letter-spacing: .06em;
  color: var(--ink-faint); padding: 0 10px 6px 10px; font-weight: 600;
}
.nav-item {
  display: flex; align-items: center; gap: 10px;
  padding: 7px 10px;
  border-radius: 6px;
  color: var(--ink-soft);
  text-decoration: none;
  font-size: 13.5px;
  margin-bottom: 1px;
  transition: background .05s, color .05s;
}
.nav-item:hover { background: var(--rule-soft); color: var(--ink); }
.nav-item.active { background: var(--accent-soft); color: var(--accent); font-weight: 600; }
.nav-item .icon { width: 16px; text-align: center; opacity: .8; }
.nav-item .badge {
  margin-left: auto;
  background: var(--rule);
  color: var(--ink-soft);
  font-size: 11px;
  padding: 1px 7px;
  border-radius: 999px;
  font-weight: 500;
}
.nav-item.active .badge { background: var(--accent); color: white; }
.nav-sub {
  padding-left: 26px;
  margin-bottom: 4px;
}
.nav-sub .nav-item {
  font-size: 12.5px;
  padding: 5px 10px;
}

/* === Main area === */
.main { padding: 0; }
.topbar {
  background: var(--paper-card);
  border-bottom: 1px solid var(--rule);
  padding: 14px 28px;
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  position: sticky;
  top: 0;
  z-index: 20;
}
.topbar .crumbs {
  font-size: 13px;
  color: var(--ink-faint);
}
.topbar .crumbs .here { color: var(--ink); font-weight: 600; margin-left: 4px; }
.topbar h1 { font-size: 18px; font-weight: 600; margin: 0; }
.topbar .spacer { flex: 1 1 0; }

/* Date selector */
.date-selector {
  display: flex;
  align-items: center;
  gap: 6px;
  background: var(--paper-warm);
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  padding: 4px;
}
.date-selector select {
  background: transparent;
  border: 0;
  font-family: inherit;
  font-size: 13px;
  color: var(--ink);
  padding: 4px 8px;
  cursor: pointer;
  outline: none;
}
.date-selector .range-text {
  padding: 4px 10px;
  font-size: 12px;
  color: var(--ink-faint);
  border-left: 1px solid var(--rule);
}
.granularity-selector { display: flex; gap: 2px; background: var(--paper-warm); border: 1px solid var(--rule); border-radius: var(--radius); padding: 3px; }
.granularity-selector button {
  background: transparent; border: 0; padding: 4px 10px; font-size: 12px;
  font-family: inherit; color: var(--ink-soft); cursor: pointer; border-radius: 5px;
}
.granularity-selector button.active { background: var(--accent); color: white; font-weight: 600; }

.content { padding: 24px 28px; max-width: 1500px; }
.content h2 {
  font-size: 13px; font-weight: 600;
  margin: 0 0 12px 0;
  color: var(--ink-faint);
  text-transform: uppercase;
  letter-spacing: .07em;
}

/* === Cards / KI tiles === */
.grid { display: grid; gap: 14px; }
.ki-grid { grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); }
.row-2 { grid-template-columns: 1fr 1fr; }
.row-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.row-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
@media (max-width: 900px) {
  .row-3, .row-4 { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 600px) {
  .row-2, .row-3, .row-4 { grid-template-columns: 1fr; }
}

.card {
  background: var(--paper-card);
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  padding: 16px 18px;
  box-shadow: var(--shadow-sm);
}
.card.link { display: block; color: var(--ink); text-decoration: none; transition: border-color .08s, transform .08s, box-shadow .08s; }
.card.link:hover { border-color: var(--accent); transform: translateY(-1px); box-shadow: var(--shadow-md); }
.card .title { font-size: 14.5px; font-weight: 600; margin-bottom: 4px; }
.card .desc { color: var(--ink-soft); font-size: 13px; line-height: 1.5; }
.card .meta { color: var(--ink-faint); font-size: 11px; margin-top: 8px; text-transform: uppercase; letter-spacing: .04em; }
.card .icon { font-size: 20px; color: var(--accent); margin-bottom: 6px; }

.ki { padding: 14px 16px; }
.ki .lbl { color: var(--ink-faint); font-size: 11px; text-transform: uppercase; letter-spacing: .06em; margin-bottom: 5px; font-weight: 600; }
.ki .val { font-size: 24px; font-weight: 600; letter-spacing: -.01em; color: var(--ink); font-variant-numeric: tabular-nums; }
.ki .meta { color: var(--ink-faint); font-size: 12px; margin-top: 4px; }
.ki.green .val { color: var(--green); }
.ki.amber .val { color: var(--amber); }
.ki.red .val { color: var(--red); }
.ki.brand-ihr { border-left: 3px solid var(--blue); }
.ki.brand-itam { border-left: 3px solid var(--purple); }
.ki.brand-amazon { border-left: 3px solid var(--amber); }

/* Pills */
.pill { display: inline-block; padding: 2px 8px; border-radius: 999px; font-size: 11px; background: var(--rule-soft); color: var(--ink-soft); margin-left: 6px; vertical-align: middle; border: 1px solid var(--rule); font-weight: 500; }
.pill.green { background: var(--green-soft); color: var(--green); border-color: var(--green); }
.pill.amber { background: var(--amber-soft); color: var(--amber); border-color: var(--amber); }
.pill.red { background: var(--red-soft); color: var(--red); border-color: var(--red); }
.pill.blue { background: var(--blue-soft); color: var(--blue); border-color: var(--blue); }

/* Tables */
table { width: 100%; border-collapse: collapse; font-size: 13px; }
th, td { padding: 8px 10px; text-align: left; border-bottom: 1px solid var(--rule-soft); }
th { color: var(--ink-faint); font-weight: 600; font-size: 11px; text-transform: uppercase; letter-spacing: .05em; background: var(--paper-warm); }
td.num, th.num { text-align: right; font-variant-numeric: tabular-nums; }
tr:hover td { background: var(--rule-soft); }
.pos { color: var(--green); }
.neg { color: var(--red); }
.neu { color: var(--ink-faint); }

/* Formula breakdown */
.formula { display: flex; flex-wrap: wrap; align-items: center; gap: 6px; font-size: 13px; line-height: 1.8; }
.formula .term { padding: 8px 12px; background: var(--paper-warm); border-radius: 6px; border: 1px solid var(--rule); font-variant-numeric: tabular-nums; min-width: 110px; }
.formula .term .label-mini { font-size: 10px; color: var(--ink-faint); text-transform: uppercase; letter-spacing: .04em; }
.formula .term .value { font-size: 15px; font-weight: 600; }
.formula .term .sub { font-size: 10px; color: var(--ink-faint); margin-top: 2px; }
.formula .op { color: var(--ink-faint); font-weight: 700; font-size: 18px; padding: 0 4px; }
.formula .eq { color: var(--green); font-weight: 700; font-size: 18px; margin-left: 4px; }

.charts { height: 360px; position: relative; }

.footnote { color: var(--ink-faint); font-size: 12px; margin-top: 10px; line-height: 1.55; }

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

.source-tag { font-size: 10px; color: var(--ink-faint); text-transform: uppercase; letter-spacing: .04em; padding: 1px 6px; border-radius: 3px; background: var(--paper-warm); margin-left: 6px; border: 1px solid var(--rule-soft); }

/* Section wrapper that adds margin */
section { margin-bottom: 26px; }