/* =========================================================
   AgriPath landing page
   Hand-written CSS. Earth-toned editorial layout.
   ========================================================= */

/* ---------- Small modern reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body, h1, h2, h3, h4, p, ol, ul, dl, dt, dd, figure { margin: 0; }
ol, ul { padding: 0; list-style: none; }
img, svg { display: block; max-width: 100%; height: auto; }
a { color: inherit; }
button { font: inherit; cursor: pointer; }

/* ---------- Design tokens ---------- */
:root {
  --bg:           #faf8f3;   /* cream */
  --bg-warm:      #f1ece1;   /* deeper cream for bands */
  --ink:          #1f2421;   /* near-black, slightly green */
  --ink-soft:     #4a4f49;
  --ink-muted:    #7a7f76;
  --rule:         #d9d2c1;
  --rule-soft:    #e7e0cf;

  --green:        #2f5d3a;   /* a deeper, less neon take on the icon green */
  --green-bright: #4cae50;   /* matches the app icon */
  --green-soft:   #e2ecd9;
  --clay:         #b25c3c;   /* terracotta accent */
  --clay-soft:    #f1d9cf;

  --serif: "Source Serif 4", "Source Serif Pro", Georgia, "Iowan Old Style", "Apple Garamond", "Times New Roman", serif;
  --sans:  "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;

  --maxw: 1120px;
  --maxw-narrow: 700px;

  --radius: 6px;
}

/* ---------- Base typography ---------- */
html { background: var(--bg); }
body {
  font-family: var(--sans);
  color: var(--ink);
  font-size: 18px;
  line-height: 1.6;
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3 { font-family: var(--serif); font-weight: 600; letter-spacing: -0.01em; line-height: 1.15; }
h1 { font-size: clamp(2.25rem, 5.5vw, 3.75rem); line-height: 1.08; }
h2 { font-size: clamp(1.7rem, 3.4vw, 2.4rem); line-height: 1.15; }
h3 { font-size: 1.15rem; font-family: var(--sans); font-weight: 600; letter-spacing: 0.02em; text-transform: uppercase; }

p { color: var(--ink-soft); }
.container { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }
.container.narrow { max-width: var(--maxw-narrow); }
.center { text-align: center; }
.muted { color: var(--ink-muted); font-weight: 400; }

a { text-decoration: none; transition: color 120ms ease; }

/* ---------- Header ---------- */
.site-header {
  border-bottom: 1px solid var(--rule-soft);
  background: var(--bg);
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: none;
}
.header-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 18px;
  padding-bottom: 18px;
}
.wordmark {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--serif);
  font-weight: 600;
  font-size: 1.25rem;
  color: var(--ink);
  letter-spacing: -0.01em;
}
.wordmark img { border-radius: 7px; }
.site-nav { display: flex; gap: 28px; font-size: 0.95rem; }
.site-nav a { color: var(--ink-soft); }
.site-nav a:hover { color: var(--green); }
@media (max-width: 560px) {
  .site-nav { gap: 16px; font-size: 0.9rem; }
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-block;
  padding: 14px 22px;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 1rem;
  line-height: 1;
  border: 1px solid transparent;
  transition: transform 80ms ease, background 120ms ease, color 120ms ease;
}
.btn-primary {
  background: var(--green);
  color: #fff;
}
.btn-primary:hover { background: #244a2e; }
.btn-primary:active { transform: translateY(1px); }

.btn-link {
  color: var(--green);
  font-weight: 500;
  border-bottom: 1px solid var(--green);
  padding-bottom: 2px;
}
.btn-link:hover { color: #244a2e; border-color: #244a2e; }

/* ---------- Eyebrow / kicker text ---------- */
.eyebrow,
.section-kicker {
  font-family: var(--sans);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--clay);
  margin-bottom: 18px;
}
.section-kicker { color: var(--green); }

/* ---------- Hero ---------- */
.hero {
  padding: clamp(40px, 8vw, 90px) 0 clamp(56px, 9vw, 110px);
  border-bottom: 1px solid var(--rule-soft);
  background:
    radial-gradient(ellipse at top right, rgba(226, 236, 217, 0.5), transparent 60%),
    var(--bg);
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: clamp(40px, 6vw, 80px);
  align-items: center;
}
@media (max-width: 880px) {
  .hero-grid { grid-template-columns: 1fr; }
}
.hero h1 .hero-accent {
  color: var(--green);
  font-style: italic;
  font-weight: 500;
}
.lede {
  font-family: var(--serif);
  font-size: clamp(1.15rem, 1.8vw, 1.35rem);
  line-height: 1.5;
  color: var(--ink-soft);
  margin-top: 22px;
  max-width: 36ch;
}
.hero-actions {
  display: flex;
  align-items: center;
  gap: 22px;
  margin-top: 34px;
  flex-wrap: wrap;
}
.hero-footnote {
  margin-top: 18px;
  font-size: 0.9rem;
  color: var(--ink-muted);
}

/* ---------- Hero phone (real screenshot in CSS bezel) ---------- */
.hero-visual {
  display: flex;
  justify-content: center;
  align-items: center;
}
.phone {
  width: min(300px, 78vw);
  aspect-ratio: 9 / 19.5;
  background: #1a1f1c;
  border-radius: 38px;
  padding: 10px;
  position: relative;
  box-shadow:
    0 1px 0 rgba(255,255,255,0.05) inset,
    0 20px 50px -20px rgba(31, 36, 33, 0.45),
    0 6px 18px -10px rgba(31, 36, 33, 0.35);
  transform: rotate(-2deg);
}
.phone-notch {
  position: absolute;
  top: 16px;
  left: 50%;
  transform: translateX(-50%);
  width: 90px;
  height: 22px;
  background: #0c0f0d;
  border-radius: 12px;
  z-index: 2;
}
.phone-screen {
  width: 100%;
  height: 100%;
  background: #1a1f1c;
  border-radius: 30px;
  overflow: hidden;
  position: relative;
}
.phone-screenshot {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  display: block;
}

/* ---------- Problem section ---------- */
.problem {
  padding: clamp(60px, 9vw, 110px) 0;
  border-bottom: 1px solid var(--rule-soft);
}
.problem h2 {
  max-width: 22ch;
  margin-bottom: 28px;
}
.problem p {
  font-family: var(--serif);
  font-size: 1.18rem;
  line-height: 1.7;
  margin-bottom: 18px;
  color: var(--ink);
}
.problem p:last-child {
  font-style: italic;
  color: var(--green);
}

/* ---------- How it works ---------- */
.how {
  padding: clamp(60px, 9vw, 110px) 0;
  background: var(--bg-warm);
  border-bottom: 1px solid var(--rule);
}
.how h2 { max-width: 22ch; margin-bottom: 48px; }
.steps {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 40px 56px;
}
@media (max-width: 720px) {
  .steps { grid-template-columns: 1fr; gap: 32px; }
}
.steps li {
  position: relative;
  padding-left: 56px;
}
.step-num {
  position: absolute;
  left: 0;
  top: 0;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--green);
  color: #fff;
  font-family: var(--serif);
  font-weight: 600;
  font-size: 1.1rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
.steps h3 {
  font-family: var(--serif);
  font-size: 1.35rem;
  font-weight: 600;
  text-transform: none;
  letter-spacing: -0.01em;
  margin-bottom: 8px;
  color: var(--ink);
}
.steps p { font-size: 1rem; }

/* ---------- Features ---------- */
.features {
  padding: clamp(60px, 9vw, 110px) 0;
  border-bottom: 1px solid var(--rule-soft);
}
.features h2 { max-width: 24ch; margin-bottom: 48px; }
.feature-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 48px 64px;
}
@media (max-width: 760px) {
  .feature-grid { grid-template-columns: 1fr; gap: 40px; }
}
.feature-group h3 {
  color: var(--green);
  border-bottom: 1px solid var(--rule);
  padding-bottom: 10px;
  margin-bottom: 18px;
  font-size: 0.95rem;
}
.feature-group dl { display: block; }
.feature-group dt {
  font-family: var(--serif);
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--ink);
  margin-top: 16px;
}
.feature-group dt:first-of-type { margin-top: 0; }
.feature-group dd {
  margin-left: 0;
  color: var(--ink-soft);
  font-size: 0.98rem;
  line-height: 1.55;
  margin-top: 4px;
}

/* ---------- Comparison ---------- */
.comparison {
  padding: clamp(60px, 9vw, 110px) 0;
  background: var(--bg);
  border-bottom: 1px solid var(--rule-soft);
}
.comparison h2 { max-width: 22ch; margin-bottom: 16px; }
.comparison-intro {
  max-width: 56ch;
  font-family: var(--serif);
  font-size: 1.1rem;
  line-height: 1.6;
  color: var(--ink-soft);
  margin-bottom: 40px;
}
.compare-table {
  display: block;
  border-top: 1px solid var(--ink);
  border-bottom: 1px solid var(--ink);
}
.compare-row {
  display: grid;
  grid-template-columns: 1.2fr 1fr 1fr;
  gap: 24px;
  padding: 18px 4px;
  border-bottom: 1px solid var(--rule-soft);
  align-items: baseline;
}
.compare-row:last-child { border-bottom: none; }
.compare-row > div:first-child {
  font-family: var(--serif);
  font-weight: 600;
  color: var(--ink);
  font-size: 1.02rem;
}
.compare-row > div { color: var(--ink-soft); font-size: 0.98rem; }
.compare-head {
  border-bottom: 1px solid var(--ink);
  padding: 14px 4px;
}
.compare-head > div {
  font-family: var(--sans);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink);
}
.compare-head > div:nth-child(2) { color: var(--green); }
.compare-row-weak {
  background: rgba(217, 210, 193, 0.22);
}
.compare-row-weak > div:first-child { color: var(--ink-soft); }
.comparison-note {
  margin-top: 28px;
  font-family: var(--serif);
  font-style: italic;
  font-size: 1.05rem;
  color: var(--ink-soft);
  max-width: 62ch;
}

@media (max-width: 680px) {
  .compare-row {
    grid-template-columns: 1fr;
    gap: 4px;
    padding: 16px 4px;
  }
  .compare-row > div:first-child { margin-bottom: 4px; }
  .compare-row > div:nth-child(2)::before {
    content: "AgriPath: ";
    color: var(--green);
    font-weight: 600;
    font-family: var(--sans);
    font-size: 0.78rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    margin-right: 6px;
  }
  .compare-row > div:nth-child(3)::before {
    content: "Monitor: ";
    color: var(--ink-muted);
    font-weight: 600;
    font-family: var(--sans);
    font-size: 0.78rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    margin-right: 6px;
  }
  .compare-head { display: none; }
}

/* ---------- FAQ ---------- */
.faq {
  padding: clamp(60px, 9vw, 110px) 0;
  background: var(--bg-warm);
  border-bottom: 1px solid var(--rule);
}
.faq h2 { margin-bottom: 32px; }
.faq details {
  border-bottom: 1px solid var(--rule);
  padding: 22px 0;
}
.faq details:first-of-type { border-top: 1px solid var(--rule); }
.faq summary {
  font-family: var(--serif);
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--ink);
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 24px;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: "+";
  font-family: var(--sans);
  font-weight: 400;
  font-size: 1.6rem;
  color: var(--green);
  line-height: 1;
  transition: transform 200ms ease;
}
.faq details[open] summary::after {
  content: "\2013"; /* en dash */
}
.faq details p {
  margin-top: 14px;
  font-size: 1rem;
  color: var(--ink-soft);
  max-width: 62ch;
}

/* ---------- CTA strip ---------- */
.cta-strip {
  padding: clamp(56px, 8vw, 96px) 0;
  background: var(--green);
  color: #fff;
}
.cta-strip h2 {
  color: #fff;
  max-width: 24ch;
  margin: 0 auto 14px;
}
.cta-strip p {
  color: rgba(255,255,255,0.85);
  font-family: var(--serif);
  font-size: 1.15rem;
  max-width: 48ch;
  margin: 0 auto 28px;
}
.cta-strip .btn-primary {
  background: #faf8f3;
  color: var(--green);
}
.cta-strip .btn-primary:hover { background: #fff; }

/* ---------- Footer ---------- */
.site-footer {
  padding: 32px 0 48px;
  background: var(--bg);
}
.footer-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  font-size: 0.9rem;
  color: var(--ink-muted);
}
.footer-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--serif);
  font-weight: 600;
  font-size: 1rem;
  color: var(--ink);
}
.footer-brand img { border-radius: 6px; }
.footer-meta {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}
.footer-meta a { color: var(--ink-soft); border-bottom: 1px solid var(--rule); padding-bottom: 1px; }
.footer-meta a:hover { color: var(--green); border-color: var(--green); }
.dot { color: var(--rule); }

/* ---------- Print / reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; }
  .phone { transform: none; }
}