/* Cottonwood Bend — synthetic energy VDR demo (D2D marketing site) */
:root {
  --bg: #08132A;
  --bg2: #0B1D3A;
  --lift: #16325C;
  --card: #102448;
  --line: rgba(255,255,255,.12);
  --text: #E8EEF7;
  --muted: rgba(232,238,247,.62);
  --amber: #D4952B;
  --green: #22C55E;
  --steel: #4A6FA5;
  --font: Inter, system-ui, -apple-system, Segoe UI, sans-serif;
  --display: "DM Sans", Inter, system-ui, sans-serif;
}
* { box-sizing: border-box; }
html, body { margin: 0; min-height: 100%; background: var(--bg); color: var(--text); font-family: var(--font); font-size: 15px; line-height: 1.5; }
a { color: inherit; }
button { font: inherit; cursor: pointer; }
.app { min-height: 100vh; display: flex; flex-direction: column; }

.banner {
  background: linear-gradient(90deg, #16325C, #0B1D3A 55%, #0B3B2A);
  border-bottom: 1px solid var(--line);
  padding: .65rem 1.25rem;
  display: flex; align-items: center; justify-content: space-between; gap: 1rem; flex-wrap: wrap;
  font-size: .86rem;
}
.banner strong { color: var(--green); }
.banner a.cta {
  background: var(--amber); color: #0B1D3A; text-decoration: none;
  font-weight: 700; padding: .45rem .9rem; border-radius: 8px;
}
.banner a.back { color: var(--muted); text-decoration: none; }
.banner a.back:hover { color: #fff; }

.top {
  display: flex; align-items: center; justify-content: space-between; gap: 1rem;
  padding: 1rem 1.25rem; border-bottom: 1px solid var(--line);
  background: rgba(8,19,42,.92); position: sticky; top: 0; z-index: 5;
}
.brand { font-family: var(--display); font-weight: 800; letter-spacing: -.02em; font-size: 1.05rem; text-decoration: none; }
.brand .g { color: var(--green); }
.deal-title { color: var(--muted); font-size: .9rem; }
.deal-title b { color: #fff; font-weight: 600; }

.shell { display: grid; grid-template-columns: 220px 1fr; flex: 1; min-height: 0; }
.nav {
  border-right: 1px solid var(--line); background: var(--bg2);
  padding: 1rem .75rem; display: flex; flex-direction: column; gap: .25rem;
}
.nav button {
  text-align: left; background: transparent; border: 0; color: var(--muted);
  padding: .65rem .75rem; border-radius: 8px;
}
.nav button:hover { background: rgba(255,255,255,.04); color: #fff; }
.nav button.active { background: rgba(34,197,94,.12); color: var(--green); font-weight: 600; }

.main { padding: 1.25rem 1.4rem 2.5rem; overflow: auto; }
.kicker { font-size: .72rem; letter-spacing: .2em; text-transform: uppercase; color: var(--amber); font-weight: 700; margin: 0 0 .5rem; }
h1 { font-family: var(--display); font-size: clamp(1.5rem, 2.4vw, 2rem); margin: 0 0 .4rem; letter-spacing: -.02em; }
.lede { color: var(--muted); max-width: 62ch; margin: 0 0 1.25rem; }

.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: .9rem; margin-bottom: 1.25rem; }
.kpi {
  background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 1rem;
}
.kpi .v { font-family: var(--display); font-weight: 800; font-size: 1.45rem; color: var(--green); letter-spacing: -.02em; }
.kpi .l { color: var(--muted); font-size: .82rem; margin-top: .25rem; }
.kpi .n { font-size: .7rem; color: rgba(255,255,255,.35); margin-top: .35rem; }

.panel {
  background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 1rem 1.1rem; margin-bottom: 1rem;
}
.panel h2 { font-family: var(--display); font-size: 1.05rem; margin: 0 0 .75rem; }
.split { display: grid; grid-template-columns: 1.2fr .9fr; gap: 1rem; }

.map {
  position: relative; height: 360px; border-radius: 12px; overflow: hidden;
  background:
    radial-gradient(80% 70% at 30% 40%, rgba(34,197,94,.12), transparent 55%),
    linear-gradient(160deg, #0d2a1f, #0B1D3A 45%, #16325C);
  border: 1px solid var(--line);
}
.map svg { width: 100%; height: 100%; display: block; }
.well { cursor: pointer; }
.well circle { stroke: #fff; stroke-width: 1.5; }
.well.producing circle { fill: var(--green); }
.well.shut-in circle { fill: #94a3b8; }
.well.gas circle { fill: var(--steel); }
.well.selected circle { stroke: var(--amber); stroke-width: 3; }
.legend { display: flex; gap: 1rem; flex-wrap: wrap; color: var(--muted); font-size: .82rem; margin-top: .75rem; }
.legend i { display: inline-block; width: 10px; height: 10px; border-radius: 50%; margin-right: .35rem; }

.well-card p { margin: .35rem 0; color: var(--muted); }
.well-card b { color: #fff; }

.bars { display: grid; gap: .55rem; }
.bar-row { display: grid; grid-template-columns: 160px 1fr 64px; gap: .6rem; align-items: center; font-size: .85rem; }
.bar-track { height: 10px; background: rgba(255,255,255,.06); border-radius: 999px; overflow: hidden; }
.bar-fill { height: 100%; background: linear-gradient(90deg, var(--steel), var(--green)); border-radius: 999px; }
.chart {
  height: 220px; display: grid; grid-template-columns: repeat(12, 1fr); align-items: end; gap: 6px;
  padding: .5rem 0;
}
.col { display: flex; flex-direction: column; justify-content: flex-end; gap: 3px; height: 100%; }
.col .oil { background: var(--green); border-radius: 3px 3px 0 0; opacity: .9; }
.col .gas { background: var(--steel); border-radius: 3px 3px 0 0; opacity: .75; }
.col label { font-size: .65rem; color: var(--muted); text-align: center; margin-top: .25rem; }

.folders { display: grid; gap: .5rem; }
.folder {
  border: 1px solid var(--line); border-radius: 10px; overflow: hidden; background: rgba(255,255,255,.02);
}
.folder summary {
  list-style: none; cursor: pointer; padding: .8rem 1rem; font-weight: 600;
  display: flex; justify-content: space-between; gap: 1rem;
}
.folder summary::-webkit-details-marker { display: none; }
.folder summary::after { content: "▾"; color: var(--muted); }
.folder[open] summary::after { content: "▴"; }
.doc {
  border-top: 1px solid var(--line); padding: .85rem 1rem; cursor: pointer;
}
.doc:hover { background: rgba(255,255,255,.03); }
.doc.active { background: rgba(34,197,94,.08); }
.doc .meta { color: var(--muted); font-size: .8rem; }
.ai-box {
  margin-top: .75rem; padding: .85rem 1rem; border-left: 3px solid var(--green);
  background: rgba(34,197,94,.08); border-radius: 0 8px 8px 0; color: var(--text);
}
.ai-box .tag { color: var(--green); font-size: .72rem; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; }

.qa { display: grid; gap: .65rem; }
.qa details {
  border: 1px solid var(--line); border-radius: 10px; background: rgba(255,255,255,.02); padding: .2rem 0;
}
.qa summary { cursor: pointer; padding: .85rem 1rem; font-weight: 600; }
.qa .a { padding: 0 1rem 1rem; color: var(--muted); }

.foot-note {
  margin-top: 1.5rem; color: rgba(255,255,255,.4); font-size: .8rem; max-width: 70ch;
}

@media (max-width: 900px) {
  .shell { grid-template-columns: 1fr; }
  .nav { flex-direction: row; flex-wrap: wrap; border-right: 0; border-bottom: 1px solid var(--line); }
  .grid-4, .split { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 560px) {
  .grid-4, .split { grid-template-columns: 1fr; }
  .bar-row { grid-template-columns: 1fr; }
}