:root {
  --bg: #0b1020;
  --panel: #111935;
  --panel-soft: #172348;
  --line: rgba(255,255,255,0.08);
  --text: #eaf0ff;
  --muted: #a8b4d8;
  --accent: #62d4ff;
  --accent-2: #8cf5c8;
  --warn: #ffcb67;
  --danger: #ff7d7d;
  --success: #81f0a1;
  --shadow: 0 18px 50px rgba(0,0,0,0.25);
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; font-family: Inter, system-ui, sans-serif; background: linear-gradient(180deg, #08101f 0%, #0d1530 100%); color: var(--text); }
body { min-height: 100vh; }
button, input, select { font: inherit; }

.app-shell {
  width: min(1400px, calc(100vw - 24px));
  margin: 0 auto;
  padding: 16px 0 40px;
}

.grid { display: grid; gap: 16px; }
.two-col-top { grid-template-columns: 1.25fr 0.95fr; }
.two-col { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.summary-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.charts-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }

.card {
  background: rgba(17, 25, 53, 0.92);
  border: 1px solid var(--line);
  border-radius: 20px;
  padding: 18px;
  box-shadow: var(--shadow);
  backdrop-filter: blur(12px);
}

.hero {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 18px;
  margin-bottom: 16px;
}

.hero h1 { margin: 6px 0 10px; font-size: clamp(2rem, 6vw, 3.5rem); line-height: 1.02; }
.eyebrow { text-transform: uppercase; letter-spacing: 0.14em; color: var(--accent); font-size: 0.77rem; font-weight: 700; margin: 0; }
.lead { margin: 0; color: var(--muted); max-width: 900px; line-height: 1.6; }
.hero-actions { display: flex; gap: 10px; flex-wrap: wrap; justify-content: flex-end; }

.btn {
  border: 1px solid var(--line);
  background: rgba(255,255,255,0.04);
  color: var(--text);
  border-radius: 12px;
  padding: 11px 14px;
  cursor: pointer;
  transition: transform 0.15s ease, border-color 0.15s ease, background 0.15s ease;
}
.btn:hover { transform: translateY(-1px); border-color: rgba(98,212,255,0.55); }
.btn-primary { background: linear-gradient(135deg, #56bfff, #73f2ce); color: #08101f; font-weight: 800; }
.btn-secondary { background: rgba(98,212,255,0.12); }
.btn-ghost { background: transparent; }

.section-title-row { display: flex; justify-content: space-between; gap: 12px; align-items: center; margin-bottom: 8px; }
h2 { margin: 0 0 12px; font-size: 1.12rem; }
.badge {
  display: inline-flex; align-items: center; padding: 6px 10px; border-radius: 999px;
  background: rgba(129, 240, 161, 0.12); color: var(--success); font-size: 0.78rem; font-weight: 700;
}
.helper { color: var(--muted); font-size: 0.94rem; margin-top: 0; }

.inputs-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}
.input-field {
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 12px;
}
.input-field label { display: block; font-size: 0.88rem; color: var(--muted); margin-bottom: 8px; }
.input-field input, .input-field select {
  width: 100%;
  background: rgba(8,16,31,0.8);
  color: var(--text);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 10px;
  padding: 10px 12px;
}
.input-field .microcopy { display: block; color: #90a1d0; font-size: 0.78rem; margin-top: 7px; line-height: 1.4; }

.callout {
  border-radius: 14px;
  padding: 13px 14px;
  margin-top: 14px;
  line-height: 1.5;
}
.callout.info { background: rgba(98,212,255,0.10); border: 1px solid rgba(98,212,255,0.18); }
.callout.warn { background: rgba(255,203,103,0.08); border: 1px solid rgba(255,203,103,0.20); display: none; }
.callout.warn.show { display: block; }
.callout p { margin: 7px 0 0; color: var(--muted); }

.table-wrap { overflow: auto; border-radius: 14px; border: 1px solid var(--line); }
table { width: 100%; border-collapse: collapse; min-width: 860px; }
.small table { min-width: 680px; }
th, td { padding: 12px 10px; text-align: left; border-bottom: 1px solid var(--line); vertical-align: top; }
th { position: sticky; top: 0; background: rgba(11, 16, 32, 0.98); font-size: 0.82rem; color: var(--accent-2); text-transform: uppercase; letter-spacing: 0.08em; }
tr:last-child td { border-bottom: 0; }
input.table-input {
  width: 100px; background: rgba(8,16,31,0.8); color: var(--text); border: 1px solid rgba(255,255,255,0.09); border-radius: 10px; padding: 8px;
}

.stat-card span { color: var(--muted); display: block; margin-bottom: 8px; }
.stat-card strong { font-size: clamp(1.4rem, 4vw, 2rem); }
.summary-list { display: grid; gap: 10px; }
.summary-item { display: flex; justify-content: space-between; gap: 14px; border-bottom: 1px solid var(--line); padding-bottom: 9px; }
.summary-item:last-child { border-bottom: 0; }
.summary-item span { color: var(--muted); }

.chart-card { min-height: 310px; }
.chart-card canvas { width: 100% !important; height: 250px !important; }

.bullet-list { margin: 0; padding-left: 18px; color: var(--muted); line-height: 1.55; }
.formula-panel {
  display: grid; gap: 10px;
}
.formula-block {
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 12px;
}
.formula-block h3 { margin: 0 0 8px; font-size: 0.95rem; }
.formula-block code { display: block; white-space: pre-wrap; color: var(--accent-2); font-size: 0.84rem; }
.formula-block p { margin: 8px 0 0; color: var(--muted); font-size: 0.9rem; line-height: 1.45; }

.tag-positive { color: var(--success); }
.tag-negative { color: var(--danger); }
.tag-warn { color: var(--warn); }

@media (max-width: 1100px) {
  .two-col-top, .two-col, .summary-grid, .charts-grid { grid-template-columns: 1fr; }
  .hero { flex-direction: column; align-items: flex-start; }
  .hero-actions { justify-content: flex-start; }
}

@media (max-width: 720px) {
  .app-shell { width: min(100vw - 14px, 1400px); padding-top: 10px; }
  .card { border-radius: 16px; padding: 14px; }
  .inputs-grid { grid-template-columns: 1fr; }
  .btn { width: 100%; }
  .hero-actions { width: 100%; }
  .hero-actions .btn { flex: 1 1 100%; }
  th, td { padding: 10px 8px; }
  input.table-input { width: 88px; }
}

@media print {
  body { background: white; color: black; }
  .app-shell { width: 100%; }
  .card { box-shadow: none; background: white; color: black; break-inside: avoid; }
  .btn { display: none !important; }
  .chart-card canvas { height: 220px !important; }
}