:root {
  --ink: #172421;
  --muted: #5b6762;
  --line: #d9e1dd;
  --paper: #fbfcfa;
  --panel: #ffffff;
  --green: #163b35;
  --green-2: #276c60;
  --mint: #e8f3ef;
  --gold: #b58a2a;
  --blue: #1c3d5a;
  --danger: #9f2a2a;
  --success: #236244;
  --shadow: 0 18px 60px rgba(23, 36, 33, 0.12);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--ink);
  background:
    linear-gradient(90deg, rgba(22, 59, 53, 0.035) 1px, transparent 1px),
    linear-gradient(180deg, rgba(22, 59, 53, 0.035) 1px, transparent 1px),
    var(--paper);
  background-size: 38px 38px;
  line-height: 1.5;
}

a { color: inherit; }

.skip-link {
  position: absolute;
  left: -999px;
  top: 1rem;
  z-index: 20;
  padding: .75rem 1rem;
  background: var(--green);
  color: white;
}

.skip-link:focus { left: 1rem; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  padding: 1rem clamp(1rem, 4vw, 4rem);
  border-bottom: 1px solid rgba(217, 225, 221, .85);
  background: rgba(251, 252, 250, .92);
  backdrop-filter: blur(16px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: .8rem;
  text-decoration: none;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: var(--green);
  color: white;
  font-weight: 800;
  font-size: 1.25rem;
}

.brand small {
  display: block;
  color: var(--muted);
  font-size: .78rem;
}

nav {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  font-size: .94rem;
}

nav a {
  text-decoration: none;
  color: var(--muted);
  font-weight: 650;
}

nav a:hover { color: var(--green); }

main > section {
  width: min(1160px, calc(100% - 2rem));
  margin: 0 auto;
}

.hero {
  min-height: 72vh;
  display: grid;
  grid-template-columns: minmax(0, 1.18fr) minmax(320px, .82fr);
  align-items: center;
  gap: clamp(2rem, 5vw, 5rem);
  padding: clamp(3rem, 8vw, 7rem) 0 3rem;
}

.eyebrow {
  margin: 0 0 .75rem;
  color: var(--green-2);
  font-weight: 800;
  letter-spacing: .04em;
  text-transform: uppercase;
  font-size: .78rem;
}

h1, h2, h3, p { overflow-wrap: anywhere; }

h1 {
  margin: 0;
  font-size: clamp(2.45rem, 6vw, 5.3rem);
  line-height: .96;
  letter-spacing: 0;
}

h2 {
  margin: 0 0 1rem;
  font-size: clamp(1.55rem, 3vw, 2.65rem);
  line-height: 1.05;
}

h3 {
  margin: .4rem 0 .35rem;
  font-size: 1.05rem;
}

.lead {
  font-size: clamp(1.05rem, 2vw, 1.25rem);
  color: var(--muted);
  max-width: 62ch;
}

.hero-actions, .step-actions, .cookie-actions {
  display: flex;
  flex-wrap: wrap;
  gap: .8rem;
  align-items: center;
}

.btn {
  border: 1px solid transparent;
  border-radius: 6px;
  padding: .86rem 1.12rem;
  font-weight: 800;
  text-decoration: none;
  cursor: pointer;
  font-size: .96rem;
}

.btn-primary {
  background: var(--green);
  color: white;
  box-shadow: 0 10px 24px rgba(22, 59, 53, .18);
}

.btn-secondary {
  background: var(--panel);
  color: var(--green);
  border-color: var(--line);
}

.trust-list {
  display: flex;
  gap: .75rem;
  flex-wrap: wrap;
  padding: 0;
  margin: 1.4rem 0 0;
  list-style: none;
}

.trust-list li {
  padding: .48rem .7rem;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, .72);
  border-radius: 999px;
  color: var(--muted);
  font-size: .9rem;
}

.formula-card {
  border: 1px solid var(--line);
  background: linear-gradient(160deg, #ffffff, #edf6f2);
  box-shadow: var(--shadow);
  border-radius: 8px;
  padding: clamp(1.4rem, 3vw, 2rem);
}

.formula-card span {
  color: var(--muted);
  font-weight: 700;
}

.formula-card strong {
  display: block;
  margin: .45rem 0 1.2rem;
  color: var(--green);
  font-size: clamp(1.5rem, 4vw, 2.25rem);
  line-height: 1.1;
}

.formula-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: .75rem;
}

.formula-grid div, .signal-band article, .process-grid div, .contact-cards article {
  border: 1px solid var(--line);
  background: rgba(255,255,255,.82);
  border-radius: 8px;
  padding: 1rem;
}

.formula-grid small {
  display: block;
  color: var(--muted);
}

.formula-grid b { color: var(--blue); }

.signal-band {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
  padding: 1rem 0 4rem;
}

.signal-band article span, .process-grid b {
  display: inline-grid;
  place-items: center;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--mint);
  color: var(--green);
  font-weight: 900;
}

.signal-band p, .process-grid p { color: var(--muted); margin-bottom: 0; }

.process, .form-section, .faq, .legal-page, .contact-page {
  padding: clamp(2.5rem, 6vw, 5rem) 0;
}

.process-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}

.section-heading {
  display: grid;
  grid-template-columns: minmax(0, .7fr) minmax(280px, .3fr);
  gap: 2rem;
  align-items: end;
  margin-bottom: 1.2rem;
}

.section-heading p:last-child { color: var(--muted); }

.lead-form {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255,255,255,.9);
  box-shadow: var(--shadow);
  padding: clamp(1rem, 3vw, 1.5rem);
}

.form-progress {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: .5rem;
  margin-bottom: 1rem;
}

.form-progress span {
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: .55rem .7rem;
  color: var(--muted);
  font-weight: 800;
  font-size: .86rem;
  background: #fff;
}

.form-progress span.active {
  border-color: var(--green);
  color: var(--green);
  background: var(--mint);
}

fieldset {
  border: 0;
  padding: 0;
  margin: 0;
}

.js fieldset[data-step] { display: none; }
.js fieldset[data-step].active { display: block; }

legend {
  font-size: 1.35rem;
  font-weight: 900;
  margin-bottom: 1rem;
}

.grid {
  display: grid;
  gap: 1rem;
}

.grid.two { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid.three { grid-template-columns: repeat(3, minmax(0, 1fr)); }

label {
  display: grid;
  gap: .35rem;
  color: var(--ink);
  font-weight: 750;
}

input, select, textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: .76rem .82rem;
  font: inherit;
  background: #fff;
  color: var(--ink);
}

input:focus, select:focus, textarea:focus {
  outline: 3px solid rgba(39, 108, 96, .18);
  border-color: var(--green-2);
}

.field-hint, .legal-note {
  color: var(--muted);
  font-size: .95rem;
}

.calculation-strip {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  margin: 1rem 0;
  padding: 1rem;
  border: 1px solid var(--line);
  border-left: 5px solid var(--gold);
  border-radius: 6px;
  background: #fffaf0;
}

.checkbox-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: .75rem;
  margin-bottom: 1rem;
}

.checkbox-grid label, .consent {
  display: flex;
  align-items: flex-start;
  gap: .55rem;
  font-weight: 650;
}

.checkbox-grid input, .consent input {
  width: auto;
  margin-top: .25rem;
}

.notice {
  border-radius: 8px;
  padding: 1rem;
  margin-bottom: 1rem;
  border: 1px solid;
}

.notice.success {
  border-color: rgba(35, 98, 68, .25);
  color: var(--success);
  background: #eef8f2;
}

.notice.error {
  border-color: rgba(159, 42, 42, .25);
  color: var(--danger);
  background: #fff0f0;
}

.hp {
  position: absolute;
  left: -9999px;
}

.faq details {
  border-top: 1px solid var(--line);
  padding: 1rem 0;
}

.faq summary {
  cursor: pointer;
  font-weight: 900;
}

.legal-page, .contact-page {
  max-width: 900px;
}

.legal-page h1, .contact-page h1 {
  font-size: clamp(2rem, 4vw, 3.4rem);
}

.legal-page h2 {
  margin-top: 2rem;
  font-size: 1.35rem;
}

.legal-table {
  width: 100%;
  border-collapse: collapse;
  background: #fff;
  border: 1px solid var(--line);
}

.legal-table th, .legal-table td {
  border: 1px solid var(--line);
  padding: .75rem;
  text-align: left;
  vertical-align: top;
}

.contact-cards {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
  margin: 2rem 0;
}

.site-footer {
  display: grid;
  grid-template-columns: 1.2fr .8fr .6fr;
  gap: 2rem;
  padding: clamp(2rem, 5vw, 4rem);
  background: var(--green);
  color: white;
}

.site-footer a { color: white; }
.site-footer .eyebrow { color: #bce2d7; }
.footer-note {
  grid-column: 1 / -1;
  margin: 0;
  color: rgba(255,255,255,.78);
  border-top: 1px solid rgba(255,255,255,.18);
  padding-top: 1rem;
}

.cookie-banner {
  position: fixed;
  left: 1rem;
  right: 1rem;
  bottom: 1rem;
  z-index: 40;
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  align-items: center;
  max-width: 980px;
  margin: 0 auto;
  padding: 1rem;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  box-shadow: var(--shadow);
}

.cookie-banner[hidden] { display: none; }
.cookie-banner p { margin: .25rem 0 0; color: var(--muted); }

@media (max-width: 900px) {
  .site-header, .hero, .section-heading, .site-footer, .signal-band, .process-grid, .contact-cards {
    grid-template-columns: 1fr;
  }

  .site-header { position: static; align-items: flex-start; }
  nav { width: 100%; }
  .hero { min-height: auto; }
  .grid.two, .grid.three, .checkbox-grid, .form-progress { grid-template-columns: 1fr; }
  .cookie-banner { flex-direction: column; align-items: flex-start; }
}