:root {
  color-scheme: light dark;
  --bark: #211812;
  --bark-soft: #34261d;
  --oak: #7a4a23;
  --oak-bright: #a36a35;
  --cream: #fff4df;
  --paper: #f5ead4;
  --moss: #6f8b55;
  --ink: #241a13;
  --muted: #866f5d;
  --line: rgba(122, 74, 35, 0.18);
  --shadow: 0 28px 80px rgba(38, 24, 12, 0.25);
  --serif: "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, serif;
  --sans: "Avenir Next", "Gill Sans", "Trebuchet MS", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background:
    radial-gradient(circle at 18% 8%, rgba(163, 106, 53, 0.22), transparent 28rem),
    radial-gradient(circle at 82% 34%, rgba(111, 139, 85, 0.16), transparent 24rem),
    linear-gradient(160deg, var(--cream), var(--paper));
  color: var(--ink);
  font-family: var(--sans);
  font-size: 18px;
  line-height: 1.65;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    repeating-linear-gradient(174deg, rgba(122, 74, 35, 0.07) 0 2px, transparent 2px 112px),
    radial-gradient(ellipse at center, transparent 0 45%, rgba(122, 74, 35, 0.04) 46% 48%, transparent 49%);
  opacity: 0.8;
}

a {
  color: var(--oak);
  font-weight: 700;
  text-decoration-color: rgba(122, 74, 35, 0.35);
  text-underline-offset: 0.18em;
}

a:hover {
  color: var(--oak-bright);
}

.shell {
  width: min(1120px, calc(100% - 40px));
  margin: 0 auto;
  position: relative;
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 28px 0;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--ink);
  text-decoration: none;
}

.mark {
  display: block;
  width: 46px;
  height: 46px;
  border-radius: 15px;
  box-shadow: 0 10px 24px rgba(47, 82, 51, 0.28);
}

.brand strong {
  font-family: var(--serif);
  font-size: 30px;
  letter-spacing: -0.04em;
}

.nav-links {
  display: flex;
  gap: 18px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.nav-links a {
  color: var(--muted);
  font-size: 15px;
  text-decoration: none;
}

.hero {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 42px;
  align-items: center;
  padding: 70px 0 92px;
}

.eyebrow {
  color: var(--oak);
  font-weight: 800;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  font-size: 13px;
}

h1,
h2,
h3 {
  font-family: var(--serif);
  letter-spacing: -0.045em;
  line-height: 1.05;
}

h1 {
  margin: 12px 0 18px;
  font-size: clamp(56px, 9vw, 104px);
}

h2 {
  margin: 0 0 18px;
  font-size: clamp(34px, 5vw, 58px);
}

h3 {
  margin: 28px 0 8px;
  font-size: 28px;
}

.lead {
  max-width: 680px;
  color: var(--muted);
  font-size: clamp(20px, 2.4vw, 26px);
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 30px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 52px;
  padding: 0 22px;
  border-radius: 999px;
  background: var(--oak);
  color: var(--cream);
  box-shadow: 0 16px 32px rgba(122, 74, 35, 0.24);
  text-decoration: none;
}

.button.secondary {
  background: rgba(255, 255, 255, 0.58);
  color: var(--oak);
  border: 1px solid var(--line);
  box-shadow: none;
}

.phone-card,
.panel,
.document {
  background: rgba(255, 255, 255, 0.62);
  border: 1px solid var(--line);
  border-radius: 34px;
  box-shadow: var(--shadow);
  backdrop-filter: blur(16px);
}

.phone-card {
  padding: 26px;
  transform: rotate(1deg);
}

.screen {
  display: flex;
  flex-direction: column;
  min-height: 520px;
  border-radius: 28px;
  padding: 20px;
  background: linear-gradient(170deg, #fff7e8, #f0e5cd);
  color: var(--ink);
  overflow: hidden;
  border: 1px solid var(--line);
}

.screen-header {
  display: flex;
  align-items: center;
  gap: 10px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line);
}

.screen-header img {
  border-radius: 8px;
}

.screen-header div {
  display: flex;
  flex-direction: column;
  line-height: 1.25;
}

.screen-header strong {
  font-size: 16px;
}

.screen-header span {
  color: var(--muted);
  font-size: 13px;
}

.messages {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 18px 0;
  flex: 1;
}

.msg {
  width: fit-content;
  max-width: 86%;
  padding: 11px 15px;
  font-size: 15px;
  line-height: 1.45;
}

.msg.user {
  margin-left: auto;
  background: var(--oak);
  color: var(--cream);
  border-radius: 20px 20px 6px 20px;
}

.msg.ai {
  margin-right: auto;
  background: rgba(255, 255, 255, 0.85);
  border: 1px solid var(--line);
  border-radius: 20px 20px 20px 6px;
  box-shadow: 0 6px 18px rgba(38, 24, 12, 0.06);
}

.source-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 10px;
  padding: 5px 10px;
  border-radius: 999px;
  background: rgba(111, 139, 85, 0.16);
  color: #55703f;
  font-size: 12px;
}

.input-mock {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 8px 10px 18px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.9);
  border: 1px solid var(--line);
  color: var(--muted);
  font-size: 15px;
  box-shadow: 0 10px 26px rgba(38, 24, 12, 0.08);
}

.send-dot {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border-radius: 999px;
  background: linear-gradient(180deg, var(--oak-bright), var(--oak));
  color: var(--cream);
  font-size: 17px;
}

.canopy-band {
  margin-top: -28px;
  line-height: 0;
}

.canopy-band svg {
  display: block;
  width: 100%;
  height: clamp(120px, 18vw, 220px);
}

.eco {
  background: linear-gradient(180deg, #43663f, #35522f);
  color: var(--cream);
  padding: 64px 0 80px;
}

.eco .eyebrow {
  color: #cfe3b7;
}

.eco h2 {
  color: #fff7e8;
}

.eco-lead {
  max-width: 720px;
  color: #d9e6c4;
  font-size: clamp(18px, 2.2vw, 23px);
  margin-bottom: 8px;
}

.eco-grid {
  margin: 34px 0 0;
}

.eco .panel {
  background: rgba(255, 247, 232, 0.08);
  border-color: rgba(255, 247, 232, 0.16);
  backdrop-filter: none;
  box-shadow: none;
}

.eco .panel h3 {
  color: #fff7e8;
  margin-top: 0;
}

.eco .panel p {
  color: #cfdcb9;
}

.grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  margin: 36px 0 80px;
}

.panel {
  padding: 28px;
}

.panel p {
  color: var(--muted);
}

.document {
  margin: 34px 0 84px;
  padding: clamp(26px, 5vw, 64px);
}

.document h1 {
  font-size: clamp(44px, 7vw, 78px);
}

.document p,
.document li {
  color: #4a382c;
}

.document ul {
  padding-left: 1.2em;
}

.meta {
  color: var(--muted);
  font-size: 15px;
}

.callout {
  margin: 28px 0;
  padding: 22px;
  border-left: 5px solid var(--moss);
  border-radius: 18px;
  background: rgba(111, 139, 85, 0.12);
}

.footer {
  padding: 38px 0 52px;
  color: var(--muted);
  border-top: 1px solid var(--line);
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  flex-wrap: wrap;
}

@media (prefers-color-scheme: dark) {
  body {
    background:
      radial-gradient(circle at 20% 10%, rgba(122, 74, 35, 0.28), transparent 28rem),
      radial-gradient(circle at 80% 35%, rgba(111, 139, 85, 0.14), transparent 24rem),
      linear-gradient(160deg, #120d0a, #251a14);
    color: var(--cream);
  }

  .brand {
    color: var(--cream);
  }

  .phone-card,
  .panel,
  .document {
    background: rgba(28, 20, 15, 0.76);
    border-color: rgba(255, 244, 223, 0.11);
  }

  .button.secondary {
    background: rgba(255, 244, 223, 0.08);
    color: var(--cream);
  }

  .document p,
  .document li {
    color: #d8c5ae;
  }
}

@media (max-width: 820px) {
  .nav {
    align-items: flex-start;
    flex-direction: column;
  }

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

  .hero {
    padding-top: 36px;
  }

  .phone-card {
    transform: none;
  }
}