:root {
  --bg: #f8f6f2;
  --white: #ffffff;
  --ink: #1c1c1a;
  --ink2: rgba(28, 28, 26, 0.55);
  --green: #1a3a2a;
  --green2: #2a5a40;
  --green-light: rgba(26, 58, 42, 0.08);
  --gold: #b8922a;
  --error: #c0392b;
  --success: #1a7a40;
  --line: rgba(28, 28, 26, 0.1);
  --sidebar-w: 260px;
  --serif: 'Libre Baskerville', Georgia, serif;
  --sans: 'Inter', sans-serif;
  --mono: 'DM Mono', monospace;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  line-height: 1.6;
}

body.menu-open {
  overflow: hidden;
}

a {
  color: inherit;
}

img {
  display: block;
  max-width: 100%;
}

button,
input,
select,
textarea {
  font: inherit;
}

.demo-banner {
  margin: 0;
  padding: 0.55rem 1rem;
  background: var(--green);
  color: var(--white);
  font: 400 11px/1.4 var(--mono);
  letter-spacing: 0.12em;
  text-align: center;
  text-transform: uppercase;
}

.demo-banner a {
  text-decoration: underline;
}

.mobile-toggle {
  display: none;
  position: sticky;
  top: 0;
  z-index: 120;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  border: 0;
  border-bottom: 1px solid var(--line);
  background: rgba(248, 246, 242, 0.96);
  padding: 1rem 1.25rem;
  backdrop-filter: blur(12px);
}

.mobile-toggle-label {
  color: var(--green);
  font: 400 0.95rem/1 var(--serif);
}

.mobile-toggle-icon span {
  display: block;
  width: 24px;
  height: 2px;
  margin: 5px 0;
  background: var(--green);
  transition: transform 0.25s ease, opacity 0.25s ease;
}

.mobile-toggle.is-open .mobile-toggle-icon span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.mobile-toggle.is-open .mobile-toggle-icon span:nth-child(2) {
  opacity: 0;
}

.mobile-toggle.is-open .mobile-toggle-icon span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.sidebar {
  position: fixed;
  inset: 0 auto 0 0;
  width: var(--sidebar-w);
  background: var(--white);
  border-right: 1px solid var(--line);
  z-index: 100;
  overflow-y: auto;
}

.sidebar-inner {
  min-height: 100%;
  display: flex;
  flex-direction: column;
}

.brand {
  padding: 32px 28px 24px;
  border-bottom: 1px solid var(--line);
}

.brand-link {
  display: inline-flex;
  flex-direction: column;
  text-decoration: none;
}

.brand-mark {
  color: var(--green);
  font: italic 400 2rem/1 var(--serif);
}

.brand-sub {
  margin-top: 0.25rem;
  color: var(--green);
  font: 300 1rem/1.2 var(--sans);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.side-nav {
  padding: 20px 0;
}

.side-nav ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

.nav-link {
  display: block;
  border-left: 2px solid transparent;
  padding: 0.8rem 28px;
  color: var(--ink2);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.05em;
  text-decoration: none;
  text-transform: uppercase;
  transition: color 0.2s ease, border-color 0.2s ease, background 0.2s ease;
}

.nav-link:hover,
.nav-link.active {
  color: var(--green);
  border-left-color: var(--green);
  background: var(--green-light);
}

.sidebar-foot {
  margin-top: auto;
  padding: 28px;
  border-top: 1px solid var(--line);
}

.sidebar-foot address {
  display: grid;
  gap: 0.45rem;
  margin: 0 0 1rem;
  font-style: normal;
}

.sidebar-foot address a,
.sidebar-foot address p {
  margin: 0;
  color: var(--ink2);
  font: 400 12px/1.5 var(--mono);
  text-decoration: none;
}

.sidebar-cta,
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0.85rem 1.4rem;
  border: 1px solid var(--green);
  text-decoration: none;
  transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease, transform 0.2s ease;
}

.sidebar-cta {
  width: 100%;
  background: var(--green);
  color: var(--white);
  font-weight: 500;
}

.button:hover,
.sidebar-cta:hover {
  transform: translateY(-1px);
}

main {
  margin-left: var(--sidebar-w);
}

.section {
  padding: 100px 64px;
}

.section-head {
  max-width: 64rem;
  margin-bottom: 2.5rem;
}

.section-head p {
  margin: 0.75rem 0 0;
  max-width: 60ch;
  color: var(--ink2);
  font-weight: 300;
}

.overview {
  min-height: calc(100vh - 34px);
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(280px, 0.8fr);
  gap: 3rem;
  align-items: center;
}

.overview-copy {
  max-width: 48rem;
}

.eyebrow {
  margin: 0 0 1rem;
  color: var(--green);
  font: 400 11px/1.4 var(--mono);
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

h1,
h2 {
  margin: 0;
  color: var(--ink);
  font-family: var(--serif);
  font-weight: 400;
  line-height: 1.1;
}

h1 {
  font-size: clamp(3rem, 7vw, 5rem);
  max-width: 10ch;
}

h2 {
  font-size: clamp(2.2rem, 4vw, 3.4rem);
}

h3 {
  margin: 0;
}

.lede {
  margin: 1.5rem 0 0;
  max-width: 44ch;
  color: var(--ink2);
  font-size: 16px;
  font-weight: 300;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin: 2rem 0 0;
}

.button-primary {
  background: var(--green);
  color: var(--white);
}

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

.overview-stats {
  display: grid;
  gap: 1rem;
}

.stat-card {
  padding: 1.8rem;
  background: var(--white);
  border: 1px solid var(--line);
}

.stat-value {
  margin: 0;
  color: var(--gold);
  font: 400 clamp(2rem, 4vw, 3.2rem)/1 var(--serif);
}

.stat-label {
  margin: 0.85rem 0 0;
  color: var(--green);
  font: 400 11px/1.5 var(--mono);
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.services,
.calculator,
.contact {
  background: var(--white);
}

.accordion {
  border-top: 1px solid var(--line);
}

.service-item {
  border-bottom: 1px solid var(--line);
}

.accordion-trigger {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.5rem 0;
  border: 0;
  background: transparent;
  color: var(--ink);
  cursor: pointer;
  text-align: left;
}

.accordion-trigger span:first-child {
  font-size: 1.05rem;
  font-weight: 500;
}

.accordion-icon {
  color: var(--green);
  font-size: 1.5rem;
  line-height: 1;
  transition: transform 0.3s ease;
}

.accordion-panel {
  overflow: hidden;
  height: 0;
}

.accordion-panel p:first-child {
  margin-top: 0;
}

.accordion-panel p:last-child {
  margin-bottom: 1.5rem;
}

.service-fee {
  margin: 1rem 0 0.4rem;
  color: var(--gold);
  font: 400 1.8rem/1.2 var(--serif);
}

.service-note {
  color: var(--ink2);
  font-size: 0.95rem;
}

.about,
.testimonials {
  background: var(--green-light);
}

.about {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(280px, 0.8fr);
  gap: 3rem;
}

.about-copy p:not(.eyebrow) {
  max-width: 58ch;
  color: rgba(28, 28, 26, 0.82);
}

.credentials {
  align-self: start;
  padding: 1.8rem;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.55);
}

.credentials ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

.credentials li {
  position: relative;
  padding-left: 1.1rem;
  margin-bottom: 0.85rem;
  color: var(--green);
  font: 400 13px/1.5 var(--mono);
}

.credentials li::before {
  content: "•";
  position: absolute;
  left: 0;
  top: 0;
}

.credentials blockquote {
  margin: 2rem 0 0;
  color: var(--green);
  font: italic 400 clamp(1.5rem, 3vw, 2rem)/1.35 var(--serif);
}

.calculator-grid,
.contact {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 0.95fr);
  gap: 2rem;
}

.calc-form,
.contact-form {
  display: grid;
  gap: 1.25rem;
}

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

.field > span,
.field legend {
  color: var(--ink2);
  font: 400 11px/1.5 var(--mono);
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.field input,
.field select,
.field textarea {
  width: 100%;
  border: 0;
  border-bottom: 1px solid var(--line);
  background: transparent;
  border-radius: 0;
  padding: 0.7rem 0;
  color: var(--ink);
  font-size: 15px;
  outline: 0;
}

.field textarea {
  resize: vertical;
  min-height: 130px;
}

.field input:focus,
.field select:focus,
.field textarea:focus {
  border-bottom-color: var(--green);
}

.field-message {
  min-height: 1rem;
  color: var(--ink2);
  font: 400 11px/1.4 var(--mono);
}

.field.is-invalid .field-message {
  color: var(--error);
}

.field.is-valid .field-message {
  color: var(--success);
}

.money-wrap {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  border-bottom: 1px solid var(--line);
}

.money-field input {
  border-bottom: 0;
}

.money-wrap:focus-within {
  border-bottom-color: var(--green);
}

.money-prefix {
  color: var(--ink2);
}

.fieldset,
fieldset.field {
  margin: 0;
  padding: 0;
  border: 0;
}

.toggle-group {
  display: flex;
  gap: 0.75rem;
  margin-top: 0.2rem;
}

.toggle-pill {
  min-width: 84px;
  border: 1px solid var(--line);
  background: transparent;
  color: var(--ink2);
  padding: 0.7rem 1rem;
  cursor: pointer;
  transition: border-color 0.2s ease, color 0.2s ease, background 0.2s ease;
}

.toggle-pill.active {
  border-color: var(--green);
  background: var(--green);
  color: var(--white);
}

.calc-output,
.form-confirmation {
  padding: 2rem;
  border: 1px solid var(--line);
  background: var(--bg);
}

.calc-kicker {
  margin: 0;
  color: var(--green);
  font: 400 11px/1.4 var(--mono);
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.calc-figure {
  margin: 0.75rem 0 1.5rem;
  color: var(--gold);
  font: 400 clamp(2.6rem, 5vw, 4rem)/1 var(--serif);
}

.calc-output table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 1.25rem;
}

.calc-output th,
.calc-output td {
  padding: 0.8rem 0;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}

.calc-output th {
  max-width: 18rem;
  color: var(--ink2);
  font-size: 0.95rem;
  font-weight: 400;
}

.calc-note,
.response-note {
  color: var(--ink2);
}

.testimonial-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  gap: 1.5rem;
}

.testimonial-stack {
  display: grid;
  gap: 1.5rem;
}

.testimonial {
  padding: 2rem;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.7);
}

.testimonial-large {
  min-height: 100%;
}

.testimonial blockquote {
  margin: 0 0 1.25rem;
  font: italic 400 18px/1.7 var(--serif);
}

.testimonial figcaption,
.site-footer {
  font: 400 12px/1.7 var(--mono);
}

.contact-copy address {
  margin: 1.5rem 0;
  font-style: normal;
}

.contact-copy address p {
  margin: 0 0 0.35rem;
}

.site-footer {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
  margin-left: var(--sidebar-w);
  padding: 1.4rem 64px;
  background: var(--green);
  color: var(--white);
}

.site-footer p {
  margin: 0;
}

.site-footer a {
  color: #d8e7dc;
}

@media (max-width: 767px) {
  .mobile-toggle {
    display: flex;
  }

  .sidebar {
    width: 100%;
    max-width: none;
    transform: translateX(-100%);
    transition: transform 0.3s ease;
  }

  .sidebar.is-open {
    transform: translateX(0);
  }

  .sidebar-inner {
    min-height: 100vh;
    background: var(--white);
  }

  main,
  .site-footer {
    margin-left: 0;
  }

  .section {
    padding: 72px 22px;
  }

  .overview,
  .about,
  .calculator-grid,
  .contact,
  .testimonial-grid,
  .site-footer {
    grid-template-columns: 1fr;
  }

  .overview {
    min-height: auto;
    padding-top: 56px;
  }

  .hero-actions,
  .toggle-group {
    flex-direction: column;
  }

  .button,
  .sidebar-cta,
  .toggle-pill {
    width: 100%;
  }

  .testimonial-stack {
    grid-template-columns: 1fr;
  }

  .site-footer {
    padding: 1.4rem 22px;
  }
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #141412;
    --white: #191917;
    --ink: #f8f6f2;
    --ink2: rgba(248, 246, 242, 0.7);
    --green: #2a5a40;
    --green2: #3f7858;
    --green-light: rgba(42, 90, 64, 0.15);
    --line: rgba(248, 246, 242, 0.12);
  }

  body,
  .calc-output,
  .form-confirmation {
    background: var(--bg);
  }

  .services,
  .calculator,
  .contact,
  .stat-card,
  .testimonial,
  .credentials,
  .sidebar {
    background: var(--white);
  }

  .mobile-toggle {
    background: rgba(20, 20, 18, 0.96);
  }

  .calc-output,
  .form-confirmation,
  .testimonial,
  .credentials,
  .stat-card {
    background: rgba(25, 25, 23, 0.88);
  }
}