:root {
  --ink: #171d43;
  --muted: #5f6d8f;
  --line: #dfe4ec;
  --paper: #ffffff;
  --soft: #f4f6fa;
  --green: #82b342;
  --green-dark: #5f8f25;
  --focus: #2d6cdf;
  --shadow: 0 24px 70px rgba(23, 29, 67, 0.12);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  overflow-x: clip;
  overscroll-behavior-x: none;
}

body {
  margin: 0;
  min-width: 320px;
  background: var(--paper);
  color: var(--ink);
  font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.6;
  overflow-x: clip;
  overscroll-behavior-y: none;
}

a {
  color: inherit;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  padding: 1.25rem clamp(1rem, 4vw, 5rem);
  background: rgba(255, 255, 255, 0.88);
  border-bottom: 1px solid rgba(223, 228, 236, 0.72);
  backdrop-filter: blur(14px);
}

.brand {
  display: inline-flex;
  align-items: center;
  text-decoration: none;
  color: var(--ink);
  font-weight: 800;
  text-transform: uppercase;
}

.brand-logo {
  display: block;
  width: auto;
  max-width: min(16rem, 58vw);
  max-height: 72px;
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: clamp(1rem, 3vw, 2rem);
  color: var(--ink);
  font-weight: 700;
}

.site-nav a {
  text-decoration: none;
}

.nav-contact,
.nav-service {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.nav-contact svg,
.nav-service svg {
  display: none;
  width: 1.35rem;
  height: 1.35rem;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 2;
}

.section-shell {
  width: min(1120px, calc(100% - 2rem));
  margin: 0 auto;
  padding: clamp(4rem, 9vw, 7rem) 0;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(320px, 0.95fr);
  align-items: center;
  gap: clamp(2.5rem, 6vw, 5rem);
  min-height: calc(100vh - 6rem);
}

.eyebrow {
  margin: 0 0 1rem;
  color: var(--green-dark);
  font-size: 0.83rem;
  font-weight: 800;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1,
h2 {
  color: var(--ink);
  line-height: 1.05;
  letter-spacing: 0;
}

h1 {
  max-width: 760px;
  margin-bottom: 1.35rem;
  font-size: clamp(2.6rem, 6vw, 5rem);
}

h2 {
  margin-bottom: 1.2rem;
  font-size: clamp(2rem, 2vw, 2.75rem);
}

h3 {
  margin-bottom: 0.45rem;
  font-size: 1.08rem;
}

.lead,
.body-copy,
.contact-copy p,
.systems p {
  color: var(--muted);
  font-size: clamp(1.05rem, 2vw, 1.25rem);
}

.lead-short,
.hero-mobile-points {
  display: none;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 2rem;
}

.button {
  display: inline-flex;
  min-height: 3.25rem;
  align-items: center;
  justify-content: center;
  padding: 0.8rem 1.45rem;
  border: 1px solid transparent;
  border-radius: 0.65rem;
  font: inherit;
  font-weight: 800;
  text-decoration: none;
  cursor: pointer;
}

.button-primary {
  background: var(--ink);
  color: #fff;
}

.button-secondary {
  background: var(--green);
  color: #fff;
}

.button:focus-visible,
a:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 3px;
}

.hero-panel {
  position: relative;
  min-height: 32rem;
  border-radius: 1.6rem;
  background:
    radial-gradient(circle at 78% 20%, rgba(130, 179, 66, 0.26), transparent 30%),
    linear-gradient(145deg, #f7f9fc, #eef2f7);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.statement-card {
  position: absolute;
  top: 3rem;
  left: 3rem;
  width: min(17rem, calc(100% - 6rem));
  padding: 1.35rem;
  border: 1px solid var(--line);
  border-radius: 1rem;
  background: rgba(255, 255, 255, 0.9);
  box-shadow: 0 16px 40px rgba(23, 29, 67, 0.1);
}

.statement-card span,
.statement-card small {
  display: block;
  color: var(--muted);
}

.statement-card strong {
  display: block;
  margin: 0.2rem 0;
  font-size: 3rem;
  line-height: 1;
}

.ledger-graphic {
  position: absolute;
  right: -2rem;
  bottom: 2.5rem;
  display: grid;
  width: 25rem;
  max-width: 80%;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.65rem;
  padding: 1.4rem;
  border: 3px solid var(--ink);
  border-radius: 1rem;
  background: #fff;
  transform: rotate(-4deg);
}

.ledger-graphic span {
  height: 3.1rem;
  border-radius: 0.4rem;
  background: var(--soft);
}

.ledger-graphic span:nth-child(4n),
.ledger-graphic span:nth-child(9) {
  background: rgba(130, 179, 66, 0.55);
}

.about,
.systems,
.contact {
  display: grid;
  grid-template-columns: minmax(260px, 0.7fr) minmax(0, 1fr);
  gap: clamp(2rem, 6vw, 5rem);
  align-items: center;
}

.body-copy p:last-child,
.systems p:last-child,
.contact-copy p:last-child {
  margin-bottom: 0;
}

.about {
  align-items: start;
}

.about-list {
  display: grid;
  gap: 0;
  margin-top: 2rem;
  border-top: 1px solid rgba(23, 29, 67, 0.12);
}

.about-list div {
  display: grid;
  grid-template-columns: 2.8rem minmax(0, 1fr);
  column-gap: 1rem;
  padding: 1.25rem 0;
  border-bottom: 1px solid rgba(23, 29, 67, 0.12);
}

.about-list span {
  color: var(--green-dark);
  font-size: 0.85rem;
  font-weight: 800;
}

.about-list strong {
  display: block;
  color: var(--ink);
  font-size: 1.05rem;
}

.about-list p {
  grid-column: 2;
  margin: 0.25rem 0 0;
  color: var(--muted);
  font-size: 0.98rem;
}

.section-heading {
  max-width: 720px;
  margin-bottom: 2.3rem;
}

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

.service-card {
  min-height: 15rem;
  padding: 1.5rem;
  border: 1px solid var(--line);
  border-radius: 0.8rem;
  background: #fff;
}

.service-card svg {
  width: 3rem;
  height: 3rem;
  margin-bottom: 1.4rem;
  fill: none;
  stroke: var(--ink);
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 2.2;
}

.service-card p {
  margin-bottom: 0;
  color: var(--muted);
}

.faq {
  width: min(920px, calc(100% - 2rem));
  padding: clamp(3rem, 7vw, 5.5rem) clamp(1rem, 4vw, 3rem);
  border-radius: 1rem;
  background:
    radial-gradient(circle at 8% 0%, rgba(130, 179, 66, 0.12), transparent 28%),
    linear-gradient(180deg, #f8fafc, #fff);
}

.faq-list {
  counter-reset: faq;
  display: grid;
  gap: 0.9rem;
}

.faq-list details {
  counter-increment: faq;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 0.8rem;
  background: rgba(255, 255, 255, 0.86);
  box-shadow: 0 14px 36px rgba(23, 29, 67, 0.06);
  transition: border-color 0.18s ease, box-shadow 0.18s ease, transform 0.18s ease;
}

.faq-list details[open] {
  border-color: rgba(130, 179, 66, 0.42);
  box-shadow: 0 20px 48px rgba(23, 29, 67, 0.1);
}

.faq-list details:hover {
  transform: translateY(-1px);
}

.faq-list summary {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 0.95rem;
  padding: 1.25rem 1.35rem;
  color: var(--ink);
  font-weight: 800;
  cursor: pointer;
  list-style: none;
}

.faq-list summary::before {
  content: counter(faq, decimal-leading-zero);
  display: inline-grid;
  width: 2.35rem;
  height: 2.35rem;
  place-items: center;
  border-radius: 999px;
  background: rgba(130, 179, 66, 0.14);
  color: var(--green-dark);
  font-size: 0.78rem;
  font-weight: 800;
}

.faq-list summary::-webkit-details-marker {
  display: none;
}

.faq-list summary::after {
  content: "+";
  display: inline-grid;
  flex: none;
  width: 2rem;
  height: 2rem;
  place-items: center;
  border: 1px solid rgba(95, 143, 37, 0.24);
  border-radius: 999px;
  background: #fff;
  color: var(--green-dark);
  font-size: 1.2rem;
  line-height: 1;
}

.faq-list details[open] summary::after {
  content: "-";
}

.faq-list p,
.faq-list ul {
  margin: 0;
  padding: 0 1.35rem 1.25rem 4.65rem;
  color: var(--muted);
}

.faq-list ul {
  display: grid;
  gap: 0.45rem;
  padding-left: 5.85rem;
}

.faq-list p + ul,
.faq-list ul + p {
  padding-top: 0.2rem;
}

.systems {
  width: min(1120px, calc(100% - 2rem));
  margin: 2rem auto;
  padding: clamp(3rem, 7vw, 5rem);
  border-radius: 1rem;
  background:
    linear-gradient(135deg, rgba(23, 29, 67, 0.04), rgba(130, 179, 66, 0.12)),
    var(--soft);
  grid-template-columns: 1fr;
  gap: 2rem;
}

.systems-intro {
  max-width: 760px;
}

.system-points {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  margin-top: 1.6rem;
}

.system-points span {
  display: inline-flex;
  align-items: center;
  min-height: 2.2rem;
  padding: 0.35rem 0.7rem;
  border: 1px solid rgba(95, 143, 37, 0.24);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.72);
  color: var(--green-dark);
  font-size: 0.82rem;
  font-weight: 800;
}

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

.system-card {
  width: 100%;
  padding: 2rem;
  border: 1px solid var(--line);
  border-radius: 1rem;
  background: #fff;
  box-shadow: var(--shadow);
}

.system-card h3 {
  margin-top: 1.4rem;
}

.system-card p {
  margin-bottom: 0;
  color: var(--muted);
}

.system-logo-link {
  display: inline-flex;
  border-radius: 0.7rem;
  text-decoration: none;
}

.system-logo {
  display: block;
  width: min(16rem, 100%);
  height: auto;
  border-radius: 0.7rem;
}

.dk-logo {
  width: min(10rem, 100%);
  margin: 1.2rem 0 1.55rem;
}

.contact {
  align-items: start;
}

.contact-details {
  display: grid;
  gap: 0.45rem;
  margin-top: 1.6rem;
  color: var(--ink);
  font-weight: 700;
}

.contact-form {
  display: grid;
  gap: 1rem;
  padding: clamp(1rem, 3vw, 2rem);
  border: 1px solid var(--line);
  border-radius: 1rem;
  background: var(--soft);
}

.field {
  display: grid;
  gap: 0.45rem;
}

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

label {
  color: var(--ink);
  font-weight: 800;
}

input,
select,
textarea {
  width: 100%;
  border: 2px solid rgba(23, 29, 67, 0.72);
  border-radius: 0.65rem;
  background: #fff;
  color: var(--ink);
  font: inherit;
}

input,
select {
  min-height: 3.15rem;
  padding: 0 0.9rem;
}

textarea {
  min-height: 9rem;
  padding: 0.85rem 0.9rem;
  resize: vertical;
}

.field-hint,
.errorlist {
  color: var(--muted);
  font-size: 0.9rem;
}

.errorlist {
  margin: 0;
  padding-left: 1.15rem;
  color: #b3261e;
}

.form-message {
  margin: 0;
  padding: 0.9rem 1rem;
  border-radius: 0.65rem;
  background: #eaf4df;
  color: #315515;
  font-weight: 700;
}

.form-message.error {
  background: #fdecea;
  color: #8c1d18;
}

.site-footer {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1rem;
  padding: 2rem 1rem;
  border-top: 1px solid var(--line);
  color: var(--muted);
}

@media (max-width: 820px) {
  .section-shell {
    width: min(100% - 2rem, 720px);
    padding: 4.5rem 0;
  }

  .site-header {
    gap: 1rem;
    padding: 1rem 1.25rem;
  }

  .brand-logo {
    max-width: min(13rem, 50vw);
    max-height: 60px;
  }

  .site-nav {
    justify-content: flex-end;
  }

  .hero,
  .about,
  .systems,
  .contact {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
    padding-top: 3rem;
  }

  .hero-panel {
    min-height: 22rem;
    border-radius: 1.2rem;
  }

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

  .systems {
    padding-right: 1.5rem;
    padding-left: 1.5rem;
  }

  .system-card-grid {
    grid-template-columns: 1fr;
  }

  .about-list div {
    grid-template-columns: 2.4rem minmax(0, 1fr);
  }
}

@media (max-width: 700px) {
  .site-header {
    position: sticky;
    align-items: center;
    padding: 0.65rem 1rem;
  }

  .brand-logo {
    max-width: min(8rem, 48vw);
    max-height: 46px;
  }

  .nav-contact,
  .nav-service {
    width: 2.75rem;
    height: 2.75rem;
    justify-content: center;
    border: 1px solid var(--line);
    border-radius: 999px;
    background: #fff;
  }

  .nav-contact svg,
  .nav-service svg {
    display: block;
  }

  .nav-contact span,
  .nav-service span {
    position: absolute;
    width: 1px;
    height: 1px;
    overflow: hidden;
    clip: rect(0 0 0 0);
    white-space: nowrap;
  }

  .section-shell {
    width: min(100% - 1.5rem, 560px);
    padding: 3.5rem 0;
  }

  .hero {
    gap: 1.5rem;
    padding-top: 2.2rem;
    padding-bottom: 2.75rem;
    text-align: left;
  }

  h1 {
    font-size: 2.35rem;
    max-width: 11ch;
    margin-bottom: 1rem;
  }

  h2 {
    font-size: 2.2rem;
  }

  .lead,
  .body-copy,
  .contact-copy p,
  .systems p {
    font-size: 1rem;
  }

  .lead {
    max-width: 34rem;
    line-height: 1.55;
  }

  .lead-full {
    display: none;
  }

  .lead-short {
    display: inline;
  }

  .hero-mobile-points {
    display: flex;
    flex-wrap: wrap;
    gap: 0.55rem;
    margin-top: 1rem;
  }

  .hero-mobile-points span {
    display: inline-flex;
    align-items: center;
    min-height: 2rem;
    padding: 0.25rem 0.65rem;
    border: 1px solid rgba(95, 143, 37, 0.24);
    border-radius: 999px;
    background: rgba(130, 179, 66, 0.1);
    color: var(--green-dark);
    font-size: 0.8rem;
    font-weight: 800;
  }

  .hero-actions,
  .two-column {
    display: grid;
    grid-template-columns: 1fr;
  }

  .hero-actions {
    gap: 0.75rem;
    margin-top: 1.5rem;
    display: none;
  }

  .button {
    width: 100%;
    min-height: 3rem;
  }

  .hero-panel {
    display: none;
  }

  .systems {
    width: min(100% - 1.5rem, 560px);
    margin: 0.5rem auto 1rem;
    padding: 1.4rem 1rem;
    gap: 1.1rem;
  }

  .systems-intro p:not(.eyebrow),
  .systems .system-points {
    display: none;
  }

  .systems-intro h2 {
    margin-bottom: 0;
  }

  .service-grid {
    grid-template-columns: 1fr;
  }

  .service-card {
    min-height: auto;
    padding: 1.25rem;
  }

  .faq {
    width: min(100% - 1.5rem, 560px);
    padding: 2rem 0.85rem;
  }

  .faq-list summary {
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 0.75rem;
    padding: 1rem;
  }

  .faq-list summary::before {
    display: none;
  }

  .faq-list p,
  .faq-list ul {
    padding-right: 1rem;
    padding-left: 1rem;
  }

  .faq-list ul {
    padding-left: 2.1rem;
  }

  .contact-form {
    gap: 0.85rem;
    padding: 1rem;
    border-radius: 0.85rem;
  }

  .contact {
    gap: 1.5rem;
    padding-top: 2.5rem;
  }

  .contact-copy h2 {
    font-size: 1.9rem;
    line-height: 1.1;
    margin-bottom: 0.75rem;
  }

  .contact-copy p {
    margin-bottom: 0;
  }

  .contact-details {
    display: flex;
    flex-wrap: wrap;
    gap: 0.55rem;
    margin-top: 1rem;
    font-size: 0.95rem;
  }

  .contact-details a {
    display: inline-flex;
    align-items: center;
    min-height: 2.2rem;
    padding: 0.3rem 0.65rem;
    border: 1px solid var(--line);
    border-radius: 999px;
    background: #fff;
    text-decoration: none;
  }

  label {
    font-size: 0.95rem;
  }

  input,
  select {
    min-height: 3rem;
  }

  textarea {
    min-height: 8rem;
  }
}

@media (max-width: 430px) {
  .site-nav {
    justify-content: flex-end;
    gap: 0.75rem;
    font-size: 0.9rem;
  }

  .brand {
    font-size: 0.92rem;
  }

  .brand-logo {
    max-width: min(7rem, 44vw);
    max-height: 38px;
  }

  .section-shell {
    width: min(100% - 1rem, 390px);
    padding: 3rem 0;
  }

  h1 {
    font-size: 2.15rem;
  }

  h2 {
    font-size: 1.9rem;
  }

  .eyebrow {
    font-size: 0.74rem;
    letter-spacing: 0.14em;
  }

  .hero {
    gap: 1.25rem;
    padding-top: 1.35rem;
    padding-bottom: 2rem;
  }

  .lead {
    margin-bottom: 0;
  }

  .contact {
    width: min(100% - 1rem, 390px);
    gap: 1rem;
    padding-top: 2rem;
  }

  .contact-form {
    padding: 0.85rem;
    border-color: rgba(23, 29, 67, 0.1);
    border-radius: 0.75rem;
  }

  .contact-copy h2 {
    font-size: 1.65rem;
  }

  .contact-copy p {
    font-size: 0.95rem;
    line-height: 1.5;
  }

  .contact-details {
    gap: 0.45rem;
    font-size: 0.82rem;
  }

  .contact-details a {
    min-height: 2rem;
    padding: 0.25rem 0.55rem;
  }

  .field {
    gap: 0.35rem;
  }

  input,
  select {
    min-height: 2.75rem;
    border-width: 1.5px;
    border-radius: 0.55rem;
  }

  textarea {
    min-height: 7rem;
    border-width: 1.5px;
    border-radius: 0.55rem;
  }

  .field-hint,
  .errorlist {
    font-size: 0.82rem;
  }

  .systems {
    width: min(100% - 1rem, 390px);
  }

  .faq {
    width: min(100% - 1rem, 390px);
  }

  .system-card {
    padding: 1.25rem;
  }

  .system-points span {
    min-height: 2rem;
    font-size: 0.76rem;
  }

}