/* ============================================
   SoilBotix — Design Tokens
   ============================================ */
:root {
  /* Color */
  --navy: #1C3D52;
  --navy-dark: #122B3B;
  --brown: #8B6F47;
  --brown-light: #A9875C;
  --green: #4A9B3E;
  --green-light: #7CB342;
  --green-dark: #2D6A2D;
  --bg: #F6F7F3;
  --bg-alt: #ECEFE5;
  --panel: #FFFFFF;
  --ink: #1F2A24;
  --ink-soft: #52605A;
  --ink-faint: #7C877F;
  --border: #DADFD2;
  --border-strong: #C3CBB9;

  /* Type */
  --font-display: 'Fraunces', Georgia, serif;
  --font-body: 'Work Sans', -apple-system, BlinkMacSystemFont, sans-serif;

  /* Layout */
  --max-width: 1160px;
  --radius: 4px;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--ink);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: inherit;
  text-decoration: none;
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  color: var(--navy-dark);
  line-height: 1.12;
  margin: 0 0 0.4em;
  font-weight: 600;
}

h1 { font-size: clamp(2.4rem, 4.2vw, 3.6rem); letter-spacing: -0.01em; }
h2 { font-size: clamp(1.7rem, 3vw, 2.4rem); letter-spacing: -0.005em; }
h3 { font-size: 1.25rem; }

p { margin: 0 0 1em; max-width: 62ch; color: var(--ink-soft); }

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 32px;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 26px;
  border-radius: var(--radius);
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.97rem;
  border: 1.5px solid transparent;
  cursor: pointer;
  transition: background 0.15s ease, color 0.15s ease, border-color 0.15s ease, transform 0.1s ease;
}
.btn:active { transform: translateY(1px); }

.btn-primary {
  background: var(--green);
  color: #FFFFFF;
}
.btn-primary:hover { background: var(--green-dark); }

.btn-outline {
  background: transparent;
  color: var(--navy-dark);
  border-color: var(--navy-dark);
}
.btn-outline:hover { background: var(--navy-dark); color: #fff; }

.btn-light {
  background: #fff;
  color: var(--navy-dark);
}
.btn-light:hover { background: var(--bg-alt); }

/* ---------- Header / Nav ---------- */
header.site {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(246, 247, 243, 0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}

.nav-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 32px;
  max-width: var(--max-width);
  margin: 0 auto;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
}
.brand .mark { width: 34px; height: 34px; }
.brand .wordmark {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.25rem;
  color: var(--navy-dark);
}
.brand .wordmark .b { color: var(--brown); }

nav.links {
  display: flex;
  align-items: center;
  gap: 30px;
}
nav.links a {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--ink-soft);
  padding: 4px 2px;
  border-bottom: 2px solid transparent;
  transition: color 0.15s ease, border-color 0.15s ease;
}
nav.links a:hover,
nav.links a.active {
  color: var(--navy-dark);
  border-bottom-color: var(--green);
}

.nav-cta { display: flex; align-items: center; gap: 18px; }

.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px;
}
.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--navy-dark);
  margin: 5px 0;
}

/* ---------- Hero ---------- */
.hero {
  padding: 72px 0 90px;
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 56px;
  align-items: center;
}
.eyebrow-tag {
  display: inline-block;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--green-dark);
  background: #E7F0DE;
  padding: 6px 14px;
  border-radius: 20px;
  margin-bottom: 20px;
}
.hero p.lead {
  font-size: 1.12rem;
  max-width: 48ch;
}
.hero-actions { display: flex; gap: 14px; margin-top: 28px; flex-wrap: wrap; }

.stat-row {
  display: flex;
  gap: 40px;
  margin-top: 48px;
  padding-top: 28px;
  border-top: 1px solid var(--border-strong);
}
.stat .num {
  font-family: var(--font-display);
  font-size: 2rem;
  color: var(--navy-dark);
  font-weight: 600;
}
.stat .label { font-size: 0.86rem; color: var(--ink-faint); max-width: 16ch; }

/* ---------- Polyhouse illustration ---------- */
.poly-illustration {
  position: relative;
}

/* ---------- Sections ---------- */
section { padding: 84px 0; }
section.alt { background: var(--bg-alt); }
section.navy {
  background: var(--navy-dark);
  color: #EDEFE9;
}
section.navy h2, section.navy h3 { color: #fff; }
section.navy p { color: #B9C3BA; }

.section-head {
  max-width: 640px;
  margin-bottom: 48px;
}
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }

/* ---------- Cards ---------- */
.card-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.card {
  background: var(--panel);
  border: 1px solid var(--border);
  padding: 30px 26px;
  border-radius: var(--radius);
}
.card .icon {
  width: 42px;
  height: 42px;
  margin-bottom: 18px;
}
.card h3 { margin-bottom: 10px; }
.card p { margin-bottom: 0; font-size: 0.95rem; }

/* ---------- Steps (legitimate sequence) ---------- */
.steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  position: relative;
}
.step {
  padding: 0 20px 0 0;
  position: relative;
}
.step .step-num {
  font-family: var(--font-display);
  font-size: 2.6rem;
  color: var(--green);
  opacity: 0.35;
  margin-bottom: 6px;
}
.step h3 { font-size: 1.05rem; margin-bottom: 8px; }
.step p { font-size: 0.92rem; }

/* ---------- Two column feature ---------- */
.feature-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  margin-bottom: 80px;
}
.feature-row:last-child { margin-bottom: 0; }
.feature-row.reverse .feature-text { order: 2; }
.feature-row.reverse .feature-visual { order: 1; }
.feature-text .tag {
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--brown);
  margin-bottom: 10px;
  display: block;
}

.visual-panel {
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 36px;
}

/* ---------- Table ---------- */
table.specs {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.93rem;
}
table.specs th, table.specs td {
  text-align: left;
  padding: 13px 16px;
  border-bottom: 1px solid var(--border);
}
table.specs th {
  color: var(--ink-faint);
  font-weight: 600;
  width: 38%;
}

/* ---------- CTA band ---------- */
.cta-band {
  background: var(--green-dark);
  color: #fff;
  padding: 60px 0;
  text-align: center;
}
.cta-band h2 { color: #fff; margin-bottom: 14px; }
.cta-band p { color: #D8E6CF; margin: 0 auto 28px; }

/* ---------- Contact ---------- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
}
.form-field { margin-bottom: 20px; }
.form-field label {
  display: block;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--navy-dark);
  margin-bottom: 7px;
}
.form-field input,
.form-field select,
.form-field textarea {
  width: 100%;
  padding: 12px 14px;
  border: 1.5px solid var(--border-strong);
  border-radius: var(--radius);
  font-family: var(--font-body);
  font-size: 0.95rem;
  background: #fff;
  color: var(--ink);
}
.form-field input:focus,
.form-field select:focus,
.form-field textarea:focus {
  outline: 2px solid var(--green);
  outline-offset: 1px;
  border-color: var(--green);
}
.form-field textarea { resize: vertical; min-height: 110px; }

.contact-info-item {
  display: flex;
  gap: 16px;
  padding: 20px 0;
  border-bottom: 1px solid var(--border);
}
.contact-info-item:first-child { padding-top: 0; }
.contact-info-item .ic {
  width: 22px; height: 22px; flex-shrink: 0; margin-top: 3px; color: var(--green-dark);
}
.contact-info-item h3 { font-size: 0.98rem; margin-bottom: 3px; }
.contact-info-item p { font-size: 0.92rem; margin: 0; }

/* ---------- Timeline (About) ---------- */
.timeline {
  border-left: 2px solid var(--border-strong);
  padding-left: 30px;
  display: flex;
  flex-direction: column;
  gap: 36px;
}
.timeline-item { position: relative; }
.timeline-item::before {
  content: '';
  position: absolute;
  left: -36px;
  top: 4px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--green);
}
.timeline-item .tl-label { font-size: 0.82rem; color: var(--brown); font-weight: 600; margin-bottom: 4px; }

/* ---------- Value grid (About) ---------- */
.value-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}
.value-item { padding: 24px 0; border-top: 1px solid var(--border); }
.value-item h3 { margin-bottom: 8px; }
.value-item p { font-size: 0.95rem; margin: 0; }

/* ---------- Scan demo animation ---------- */
.scan-demo-wrap {
  position: relative;
  height: 320px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  overflow: hidden;
  background: var(--panel);
}
.scan-bg { position: absolute; inset: 0; width: 100%; height: 100%; }

.scan-rail {
  position: absolute;
  top: 66px;
  left: 4%;
  right: 4%;
  height: 2px;
  background: var(--border-strong);
  z-index: 1;
}

.scan-node {
  position: absolute;
  top: 46px;
  left: 4%;
  width: 56px;
  height: 42px;
  z-index: 3;
  animation: trackMove 14s ease-in-out infinite;
}
@keyframes trackMove {
  0% { left: 4%; }
  50% { left: calc(96% - 56px); }
  100% { left: 4%; }
}

.pulse-point { position: absolute; top: 196px; z-index: 2; width: 10px; height: 10px; }
.pulse-point.p1 { left: calc(25% - 5px); }
.pulse-point.p2 { left: calc(55% - 5px); }
.pulse-point.p3 { left: calc(80% - 5px); }

.pulse-dot {
  position: absolute;
  width: 10px; height: 10px;
  border-radius: 50%;
  background: var(--brown);
}
.pulse-ring {
  position: absolute;
  top: -10px; left: -10px;
  width: 30px; height: 30px;
  border-radius: 50%;
  border: 2px solid #C4552F;
  opacity: 0;
}

.pulse-point.p1 .pulse-ring { animation: pulse1 14s ease-in-out infinite; }
.pulse-point.p1 .pulse-dot { animation: pulseDot1 14s ease-in-out infinite; }
.pulse-point.p2 .pulse-ring { animation: pulse2 14s ease-in-out infinite; }
.pulse-point.p2 .pulse-dot { animation: pulseDot2 14s ease-in-out infinite; }
.pulse-point.p3 .pulse-ring { animation: pulse3 14s ease-in-out infinite; }
.pulse-point.p3 .pulse-dot { animation: pulseDot3 14s ease-in-out infinite; }

@keyframes pulse1 {
  0%, 8%, 14%, 86%, 92%, 100% { opacity: 0; transform: scale(0.6); }
  11%, 89% { opacity: 1; transform: scale(1.5); }
}
@keyframes pulseDot1 {
  0%, 8%, 14%, 86%, 92%, 100% { transform: scale(1); background: var(--brown); }
  11%, 89% { transform: scale(1.3); background: #C4552F; }
}
@keyframes pulse2 {
  0%, 24%, 32%, 68%, 76%, 100% { opacity: 0; transform: scale(0.6); }
  28%, 72% { opacity: 1; transform: scale(1.5); }
}
@keyframes pulseDot2 {
  0%, 24%, 32%, 68%, 76%, 100% { transform: scale(1); background: var(--brown); }
  28%, 72% { transform: scale(1.3); background: #C4552F; }
}
@keyframes pulse3 {
  0%, 38%, 46%, 54%, 62%, 100% { opacity: 0; transform: scale(0.6); }
  42%, 58% { opacity: 1; transform: scale(1.5); }
}
@keyframes pulseDot3 {
  0%, 38%, 46%, 54%, 62%, 100% { transform: scale(1); background: var(--brown); }
  42%, 58% { transform: scale(1.3); background: #C4552F; }
}

.scan-status {
  position: absolute;
  left: 20px;
  bottom: 18px;
  z-index: 4;
  display: flex;
  align-items: center;
  gap: 9px;
  background: rgba(28, 61, 82, 0.94);
  color: #fff;
  padding: 9px 16px;
  border-radius: 20px;
  font-size: 0.85rem;
  font-weight: 600;
}
.scan-status .dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--green-light);
  flex-shrink: 0;
}
.scan-status-text { transition: opacity 0.2s ease; }

@media (max-width: 640px) {
  .scan-demo-wrap { height: 280px; }
  .scan-status { font-size: 0.78rem; padding: 7px 12px; left: 12px; bottom: 12px; }
}

/* ---------- Footer ---------- */
footer.site {
  background: var(--navy-dark);
  color: #B9C3BA;
  padding: 56px 0 28px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}
.footer-grid h4 {
  color: #fff;
  font-size: 0.85rem;
  letter-spacing: 0.02em;
  margin-bottom: 16px;
  font-family: var(--font-body);
  font-weight: 600;
}
.footer-grid ul { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 10px; }
.footer-grid a { font-size: 0.9rem; color: #B9C3BA; }
.footer-grid a:hover { color: #fff; }
.footer-brand .wordmark { color: #fff; }
.footer-brand p { color: #8FA097; font-size: 0.9rem; margin-top: 12px; }
.footer-bottom {
  border-top: 1px solid #2A4455;
  padding-top: 22px;
  display: flex;
  justify-content: space-between;
  font-size: 0.82rem;
  color: #7E9087;
  flex-wrap: wrap;
  gap: 10px;
}

/* ---------- Page header (inner pages) ---------- */
.page-header {
  padding: 56px 0 50px;
  border-bottom: 1px solid var(--border);
}
.page-header .eyebrow-tag { margin-bottom: 14px; }
.page-header p.lead { font-size: 1.05rem; }

/* ---------- Utility ---------- */
.mt-0 { margin-top: 0; }
.center-text { text-align: center; }

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  .hero-grid { grid-template-columns: 1fr; }
  .poly-illustration { order: -1; }
  .card-grid { grid-template-columns: 1fr 1fr; }
  .steps { grid-template-columns: 1fr 1fr; row-gap: 32px; }
  .feature-row, .feature-row.reverse { grid-template-columns: 1fr; }
  .feature-row.reverse .feature-text,
  .feature-row.reverse .feature-visual { order: initial; }
  .contact-grid { grid-template-columns: 1fr; gap: 40px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .value-grid { grid-template-columns: 1fr; }
}

@media (max-width: 640px) {
  nav.links { display: none; }
  .nav-cta .btn-outline { display: none; }
  .nav-toggle { display: block; }
  nav.links.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 68px;
    left: 0;
    right: 0;
    background: var(--bg);
    padding: 20px 32px;
    gap: 16px;
    border-bottom: 1px solid var(--border);
  }
  .card-grid { grid-template-columns: 1fr; }
  .steps { grid-template-columns: 1fr; }
  .stat-row { gap: 26px; flex-wrap: wrap; }
  .footer-grid { grid-template-columns: 1fr; }
  section { padding: 56px 0; }
  .hero { padding: 48px 0 56px; }
}

@media (prefers-reduced-motion: reduce) {
  * { scroll-behavior: auto !important; transition: none !important; }
  .scan-node, .pulse-ring, .pulse-dot { animation: none !important; }
  .scan-node { left: 50% !important; }
}