:root {
  --ink: #171a17;
  --paper: #f4f3ec;
  --white: #ffffff;
  --muted: #585d54;
  --line: #d6d8ca;
  --lime: #d9f54d;
  --forest: #1f3327;
  --warn: #f1e6b2;
  --danger: #f7d6d0;
  --radius: 14px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  line-height: 1.65;
  font-size: 16px;
}
a { color: var(--ink); text-underline-offset: 3px; }
a:hover { opacity: 0.85; }
.wrap { width: min(1200px, calc(100% - 2rem)); margin: 0 auto; }
.skip-link { position: absolute; left: -9999px; top: 0; background: var(--ink); color: var(--white); padding: 0.7rem 1rem; z-index: 999; }
.skip-link:focus { left: 1rem; top: 1rem; }

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: rgba(244, 243, 236, 0.96);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.site-header .bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.9rem 0;
  flex-wrap: wrap;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  text-decoration: none;
  font-weight: 800;
  letter-spacing: -0.02em;
  font-size: 1.12rem;
}
.brand .mark {
  width: 2.2rem;
  height: 2.2rem;
  border-radius: 10px;
  background: var(--ink);
  color: var(--paper);
  display: inline-grid;
  place-items: center;
  font-weight: 900;
  font-size: 0.95rem;
}
.brand .mark span { color: var(--lime); }
.nav { display: flex; flex-wrap: wrap; gap: 0.45rem; align-items: center; }
.nav a {
  text-decoration: none;
  padding: 0.42rem 0.75rem;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.92rem;
}
.nav a:hover, .nav a.active { background: #e6e8dc; }
.nav a.cta {
  background: var(--ink);
  color: var(--paper);
}
.nav a.cta:hover { background: var(--forest); opacity: 1; }

/* Hero & Sections */
main { padding: 1.75rem 0 4rem; }
.hero-box {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: clamp(1.4rem, 3.5vw, 2.5rem);
  margin-bottom: 2rem;
}
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  background: var(--lime);
  color: var(--ink);
  padding: 0.28rem 0.7rem;
  border-radius: 999px;
  font-weight: 800;
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}
h1 {
  font-size: clamp(1.85rem, 3.8vw, 3.1rem);
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin: 0.75rem 0 1rem;
}
h2 {
  font-size: clamp(1.35rem, 2.4vw, 1.95rem);
  line-height: 1.22;
  letter-spacing: -0.02em;
  margin: 2.2rem 0 0.85rem;
}
h3 {
  font-size: 1.18rem;
  line-height: 1.3;
  margin: 1.5rem 0 0.55rem;
}
.lead {
  font-size: 1.08rem;
  color: var(--muted);
  max-width: 72ch;
}

/* Grids & Cards */
.grid-3 {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(310px, 1fr));
  gap: 1.1rem;
}
.grid-4 {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(235px, 1fr));
  gap: 0.85rem;
}
.card {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 0.75rem;
}
.card h3 { margin: 0; font-size: 1.1rem; }
.badge {
  display: inline-block;
  padding: 0.2rem 0.6rem;
  border-radius: 999px;
  background: #eceee2;
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--ink);
}
.badge.lime { background: var(--lime); }

/* Interactive Calculator */
.calc-panel {
  background: var(--ink);
  color: var(--paper);
  border-radius: 18px;
  padding: clamp(1.35rem, 3vw, 2.25rem);
  margin: 2rem 0;
}
.calc-panel h2, .calc-panel h3 { color: var(--paper); margin-top: 0; }
.calc-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 1.5rem;
  align-items: start;
}
.calc-controls {
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.14);
  border-radius: 14px;
  padding: 1.25rem;
}
.calc-field { margin-bottom: 1.1rem; }
.calc-field label {
  display: flex;
  justify-content: space-between;
  font-weight: 700;
  font-size: 0.92rem;
  margin-bottom: 0.4rem;
  color: var(--paper);
}
.calc-field select, .calc-field input[type="number"], .calc-field input[type="text"], .calc-field input[type="email"], .calc-field textarea {
  width: 100%;
  padding: 0.68rem 0.8rem;
  border-radius: 10px;
  border: 1px solid var(--line);
  background: var(--white);
  color: var(--ink);
  font: inherit;
}
.calc-field input[type="range"] {
  width: 100%;
  accent-color: var(--lime);
  cursor: pointer;
}
.calc-results {
  background: var(--paper);
  color: var(--ink);
  border-radius: 14px;
  padding: 1.35rem;
  border: 2px solid var(--lime);
}
.calc-kpi {
  padding: 0.85rem 1rem;
  border-radius: 12px;
  background: var(--white);
  border: 1px solid var(--line);
  margin-bottom: 0.75rem;
}
.calc-kpi .num {
  font-size: 1.85rem;
  font-weight: 900;
  letter-spacing: -0.03em;
  display: block;
}

/* Tables */
.table-responsive {
  overflow-x: auto;
  margin: 1.25rem 0 1.75rem;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}
table {
  width: 100%;
  border-collapse: collapse;
  min-width: 640px;
}
th, td {
  padding: 0.85rem 1rem;
  text-align: left;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
  font-size: 0.93rem;
}
th {
  background: #eceee2;
  font-weight: 800;
  color: var(--ink);
}
tr:last-child td { border-bottom: none; }

/* Content container */
.prose-card {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: clamp(1.35rem, 3vw, 2.4rem);
  margin-bottom: 2rem;
}
.breadcrumbs {
  font-size: 0.88rem;
  color: var(--muted);
  margin-bottom: 1.1rem;
}
.breadcrumbs a { color: var(--muted); }

/* Kanban Board */
.kanban-board {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  margin: 1.5rem 0;
}
.kanban-col {
  background: #eceee2;
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 1rem;
}
.kanban-col h3 {
  margin: 0 0 0.75rem 0;
  font-size: 1rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.kanban-item {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 0.75rem;
  margin-bottom: 0.6rem;
  font-size: 0.9rem;
  box-shadow: 0 1px 2px rgba(0,0,0,0.03);
}
.kanban-item button {
  margin-top: 0.45rem;
  background: var(--ink);
  color: var(--paper);
  border: none;
  border-radius: 6px;
  padding: 0.25rem 0.55rem;
  font-size: 0.78rem;
  cursor: pointer;
}

/* Footer & Cookie Banner */
.site-footer {
  border-top: 1px solid var(--line);
  padding: 2.5rem 0 2rem;
  background: #eceee2;
  margin-top: 3rem;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr;
  gap: 2rem;
}
.footer-grid p { margin: 0.4rem 0; font-size: 0.92rem; }
.cookie-banner {
  position: fixed;
  bottom: 1rem;
  left: 1rem;
  right: 1rem;
  z-index: 100;
  background: var(--white);
  border: 2px solid var(--ink);
  border-radius: 16px;
  padding: 1.15rem 1.35rem;
  box-shadow: 0 12px 32px rgba(0,0,0,0.18);
  max-width: 980px;
  margin: 0 auto;
}
.cookie-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.25rem;
  flex-wrap: wrap;
}
.cookie-actions { display: flex; gap: 0.65rem; flex-shrink: 0; }
.btn-cookie-accept {
  background: var(--ink);
  color: var(--paper);
  border: 1px solid var(--ink);
  padding: 0.6rem 1.1rem;
  border-radius: 999px;
  font-weight: 700;
  cursor: pointer;
}
.btn-cookie-reject {
  background: var(--paper);
  color: var(--ink);
  border: 1px solid var(--line);
  padding: 0.6rem 1.1rem;
  border-radius: 999px;
  font-weight: 600;
  cursor: pointer;
}
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.65rem 1.1rem;
  border-radius: 999px;
  background: var(--ink);
  color: var(--paper);
  text-decoration: none;
  font-weight: 700;
  font-size: 0.92rem;
  border: 1px solid var(--ink);
  cursor: pointer;
}
.btn.lime {
  background: var(--lime);
  color: var(--ink);
}
.btn.outline {
  background: transparent;
  color: var(--ink);
  border-color: var(--ink);
}

@media (max-width: 860px) {
  .calc-grid, .kanban-board, .footer-grid { grid-template-columns: 1fr; }
}