:root {
  --bg: #f4f5f7;
  --panel: #ffffff;
  --ink: #1f2933;
  --muted: #6b7280;
  --line: #e5e7eb;
  --blue: #3a6ea5;
  --green: #2e8b57;
  --amber: #b9770e;
  --amber-bg: #fdf3e3;
  --red: #c0504d;
  --radius: 10px;
  --shadow: 0 1px 3px rgba(0,0,0,.08);
}
* { box-sizing: border-box; }
body {
  margin: 0; background: var(--bg); color: var(--ink);
  font: 15px/1.5 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}
h1 { font-size: 1.3rem; margin: 0; }
h2 { font-size: 1.05rem; margin: 0 0 .25rem; }
h3 { font-size: .95rem; margin: 0 0 .5rem; }
.muted { color: var(--muted); }
.small { font-size: .82rem; }

/* ---------- login ---------- */
.login-view {
  min-height: 100vh; display: grid; place-items: center; padding: 1rem;
}
.login-card {
  background: var(--panel); padding: 2rem; border-radius: var(--radius);
  box-shadow: var(--shadow); max-width: 380px; width: 100%;
}
.login-card h1 { margin-bottom: .5rem; }
#login-form { display: flex; gap: .5rem; margin: 1rem 0 .5rem; }
#login-form input {
  flex: 1; padding: .6rem .7rem; border: 1px solid var(--line); border-radius: 8px; font: inherit;
}
button {
  cursor: pointer; font: inherit; border: 0; border-radius: 8px;
  padding: .6rem .9rem; background: var(--blue); color: #fff;
}
button.ghost { background: transparent; color: var(--ink); border: 1px solid var(--line); padding: .4rem .7rem; }
button:disabled { opacity: .6; cursor: default; }
.login-msg { min-height: 1.2em; color: var(--muted); }

/* ---------- dashboard shell ---------- */
.dashboard { max-width: 1100px; margin: 0 auto; padding: 1rem 1rem 3rem; }
.topbar {
  display: flex; justify-content: space-between; align-items: center;
  gap: 1rem; margin-bottom: 1rem; flex-wrap: wrap;
}
.topbar-actions { display: flex; align-items: center; gap: .6rem; }

.panel {
  background: var(--panel); border-radius: var(--radius); box-shadow: var(--shadow);
  padding: 1.1rem 1.2rem; margin-bottom: 1rem;
}
.panel-sub { color: var(--muted); font-size: .85rem; margin: .1rem 0 .9rem; }
.keystone { border-left: 4px solid var(--blue); }

/* ---------- scorecard / cards ---------- */
.scorecard { display: grid; grid-template-columns: repeat(auto-fit, minmax(130px, 1fr)); gap: .6rem; }
.card {
  border: 1px solid var(--line); border-radius: 8px; padding: .7rem .8rem; background: #fafbfc;
}
.card-val { font-size: 1.25rem; font-weight: 650; }
.card-lbl { color: var(--muted); font-size: .78rem; margin-top: .15rem; }
.card.ok .card-val { color: var(--green); }
.card.warn .card-val { color: var(--amber); }

/* ---------- callouts ---------- */
.callout {
  margin-top: .9rem; padding: .7rem .85rem; border-radius: 8px; font-size: .88rem;
  background: #eef2f7; border: 1px solid var(--line);
}
.callout.warn { background: var(--amber-bg); border-color: #f0d9ad; color: #6b4a06; }

/* ---------- revenue tiles ---------- */
.tile-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: .8rem; }
.tile { border: 1px solid var(--line); border-radius: 8px; padding: .85rem .95rem; }
.tile-ccy { font-weight: 700; letter-spacing: .03em; display: flex; align-items: center; gap: .4rem; }
.tile-net { font-size: 1.5rem; font-weight: 700; margin-top: .2rem; }
.tile-lbl { color: var(--muted); font-size: .75rem; }
.tile-row { display: flex; justify-content: space-between; font-size: .85rem; margin-top: .35rem; border-top: 1px dashed var(--line); padding-top: .3rem; }
.badge { font-size: .65rem; background: var(--amber-bg); color: var(--amber); border: 1px solid #f0d9ad; padding: .05rem .35rem; border-radius: 999px; }

/* ---------- charts ---------- */
.chart-controls { margin-bottom: .6rem; }
.chart-controls select { padding: .35rem .5rem; border: 1px solid var(--line); border-radius: 6px; font: inherit; }
.chart-wrap { position: relative; height: 320px; }
.chart-wrap.small { height: 280px; }

/* ---------- mix + growth layouts ---------- */
.mix-layout { display: grid; grid-template-columns: 1fr 1.3fr; gap: 1.2rem; align-items: start; }
.growth-layout { display: grid; gap: 1.2rem; }
.reengage h3 { margin-top: .3rem; }

/* ---------- tables ---------- */
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: .87rem; }
th, td { text-align: left; padding: .45rem .55rem; border-bottom: 1px solid var(--line); }
th.r, td.r { text-align: right; }
th { color: var(--muted); font-weight: 600; }
.pill { font-size: .72rem; padding: .1rem .5rem; border-radius: 999px; border: 1px solid var(--line); }
.pill.ok { color: var(--green); border-color: #bfe3cd; background: #f0f9f3; }
.pill.warn { color: var(--amber); border-color: #f0d9ad; background: var(--amber-bg); }

/* ---------- footer / boot error ---------- */
.footer { margin-top: 1.5rem; text-align: center; }
.boot-error {
  max-width: 600px; margin: 3rem auto; padding: 1.2rem; background: #fff;
  border: 1px solid var(--red); border-left: 4px solid var(--red); border-radius: 8px;
  white-space: pre-wrap; color: #7a2521;
}

@media (max-width: 720px) {
  .mix-layout { grid-template-columns: 1fr; }
}