:root {
  --bg: #f6faf7;
  --card: #ffffff;
  --text: #18271c;
  --muted: #5f7264;
  --line: #d9e7dd;
  --green: #59bf72;
  --green-dark: #1f6b37;
  --shadow: 0 22px 60px rgba(20, 39, 28, 0.08);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: Inter, Arial, sans-serif;
  color: var(--text);
  background: linear-gradient(180deg, #f4faf6 0%, #ffffff 55%);
}
a { color: inherit; text-decoration: none; }
.container { width: min(1120px, calc(100% - 32px)); margin: 0 auto; }
.section { padding: 72px 0; }
.section-muted { background: #eef7f1; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: blur(10px);
  background: rgba(246, 250, 247, 0.84);
  border-bottom: 1px solid rgba(217, 231, 221, 0.85);
}
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 74px;
}
.brand { display: inline-flex; flex-direction: column; line-height: 1; }
.brand-top { font-size: 1.55rem; letter-spacing: 0.25em; }
.brand-bottom { color: var(--green); font-weight: 700; letter-spacing: 0.18em; }
.brand-footer .brand-top { font-size: 1.2rem; }

.hero { padding: 84px 0 52px; }
.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 28px;
  align-items: center;
}
.eyebrow {
  display: inline-flex;
  padding: 8px 12px;
  border-radius: 999px;
  background: #e8f6ec;
  color: var(--green-dark);
  font-weight: 700;
  font-size: 0.82rem;
  letter-spacing: 0.04em;
}
h1 {
  font-size: clamp(2.3rem, 4vw, 4.2rem);
  line-height: 1.03;
  margin: 16px 0;
}
.lead {
  color: var(--muted);
  font-size: 1.08rem;
  line-height: 1.7;
  max-width: 62ch;
}
.hero-actions, .actions-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}
.hero-points {
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 10px;
}
.hero-points li::before {
  content: '✓';
  color: var(--green-dark);
  font-weight: 700;
  margin-right: 10px;
}
.hero-card,
.info-card,
.form-panel,
.result-panel,
.footer-box {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 28px;
  box-shadow: var(--shadow);
}
.hero-card { padding: 24px; }
.stat-card {
  border-radius: 24px;
  padding: 26px;
  background: linear-gradient(180deg, #173023 0%, #214b33 100%);
  color: #fff;
}
.stat-card strong { display: block; font-size: 2.6rem; margin: 10px 0 4px; }
.stat-card .stat-label { opacity: 0.8; }
.stat-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  margin-top: 16px;
}
.mini-card {
  border: 1px solid var(--line);
  border-radius: 20px;
  padding: 18px;
}
.mini-card span { display: block; font-size: 1.3rem; font-weight: 700; margin-bottom: 6px; }
.mini-card small,
.info-card p,
.footer-box span,
.submit-status,
#commune-note,
footer p { color: var(--muted); }

.three-cols {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}
.info-card { padding: 24px; }
.info-card h2 { margin-top: 0; font-size: 1.2rem; }

.form-layout {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 24px;
}
.form-panel,
.result-panel { padding: 28px; }

label { display: block; }
label span {
  display: inline-block;
  margin-bottom: 8px;
  font-weight: 600;
}
input, select, button { font: inherit; }
input, select {
  width: 100%;
  border-radius: 16px;
  border: 1px solid var(--line);
  background: #fff;
  padding: 14px 16px;
  color: var(--text);
}
input:focus, select:focus {
  outline: 2px solid rgba(89, 191, 114, 0.2);
  border-color: var(--green);
}
.grid {
  display: grid;
  gap: 16px;
  margin-bottom: 16px;
}
.grid.two { grid-template-columns: 1fr 1fr; }
.locked-line {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 18px;
  padding: 16px 18px;
  border-radius: 18px;
  background: #eff8f2;
  border: 1px solid var(--line);
  margin-top: 8px;
}
.btn {
  border: none;
  background: linear-gradient(180deg, #65cd7e 0%, #42a45d 100%);
  color: white;
  padding: 14px 20px;
  border-radius: 999px;
  font-weight: 700;
  cursor: pointer;
  display: inline-flex;
  justify-content: center;
  align-items: center;
}
.btn:hover { transform: translateY(-1px); }
.btn-outline {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--line);
}
.result-totals {
  display: grid;
  gap: 14px;
}
.result-totals > div,
.breakdown .row {
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 16px 18px;
  background: #fff;
}
.result-totals strong {
  display: block;
  font-size: 1.6rem;
  margin-top: 4px;
}
.breakdown {
  display: grid;
  gap: 12px;
  margin-top: 18px;
}
.breakdown .row {
  display: flex;
  justify-content: space-between;
  gap: 16px;
}
.breakdown .row small { color: var(--muted); display: block; }
.submit-status {
  margin-top: 18px;
  padding: 16px 18px;
  background: #f7fbf8;
  border: 1px dashed var(--line);
  border-radius: 18px;
  line-height: 1.6;
}
.site-footer {
  padding: 32px 0 44px;
  border-top: 1px solid var(--line);
  background: #f7fbf8;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 24px;
}
.footer-box {
  padding: 18px 22px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

@media (max-width: 920px) {
  .hero-grid,
  .form-layout,
  .three-cols,
  .footer-grid,
  .grid.two {
    grid-template-columns: 1fr;
  }
  h1 { font-size: 2.4rem; }
}