:root {
  --bg: #1a2e1e;
  --bg-alt: #152512;
  --cream: #f4efe6;
  --amber: #c97830;
  --amber-dim: #a05e20;
  --fg: #f4efe6;
  --fg-muted: #a8b09a;
  --fg-dim: #6b7a5f;
  --green-light: #2a4a28;
  --green-card: #1f3820;
  --green-border: #2a4028;
  --warn: #e0a030;
  --done: #5a9e6a;
  --font-display: 'Fraunces', Georgia, serif;
  --font-body: 'DM Sans', system-ui, sans-serif;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  scroll-behavior: smooth;
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-body);
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

body {
  background: var(--bg);
  overflow-x: hidden;
}

/* NAV */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 0 48px;
  height: 64px;
  display: flex;
  align-items: center;
  background: rgba(26,46,30,0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(201,120,48,0.12);
}
.nav-inner {
  max-width: 1200px;
  margin: 0 auto;
  width: 100%;
  display: flex;
  align-items: baseline;
  gap: 20px;
}
.nav-logo {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--amber);
  letter-spacing: -0.01em;
}
.nav-tagline {
  font-size: 0.8rem;
  color: var(--fg-dim);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

/* HERO */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 120px 48px 80px;
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 60% 70% at 75% 50%, rgba(201,120,48,0.08) 0%, transparent 70%),
    radial-gradient(ellipse 80% 50% at 0% 100%, rgba(42,74,40,0.4) 0%, transparent 60%);
  pointer-events: none;
}
.hero-inner {
  max-width: 1200px;
  margin: 0 auto;
  width: 100%;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
  position: relative;
  z-index: 1;
}
.hero-text { display: flex; flex-direction: column; gap: 28px; }
.hero-eyebrow {
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--amber);
  font-weight: 500;
}
.hero-headline {
  font-family: var(--font-display);
  font-size: clamp(2.4rem, 5vw, 4rem);
  font-weight: 900;
  line-height: 1.08;
  color: var(--cream);
  letter-spacing: -0.02em;
}
.hero-sub {
  font-size: 1.05rem;
  line-height: 1.7;
  color: var(--fg-muted);
  max-width: 480px;
  font-weight: 300;
}

/* Tank grid mockup */
.tank-grid {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.tank-card {
  background: var(--green-card);
  border: 1px solid var(--green-border);
  border-radius: 10px;
  padding: 14px 18px;
}
.tank-active { border-color: rgba(90,158,106,0.4); }
.tank-warn { border-color: rgba(224,160,48,0.4); }
.tank-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 10px;
}
.tank-label { font-size: 0.78rem; color: var(--fg-muted); font-weight: 400; }
.tank-badge {
  font-size: 0.65rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  background: rgba(90,158,106,0.2);
  color: var(--done);
  padding: 2px 8px;
  border-radius: 20px;
  font-weight: 500;
}
.tank-badge-warn {
  background: rgba(224,160,48,0.15);
  color: var(--warn);
}
.tank-badge-done {
  background: rgba(168,176,154,0.15);
  color: var(--fg-muted);
}
.tank-sg { margin-bottom: 6px; }
.sg-bar {
  height: 4px;
  background: rgba(90,158,106,0.4);
  border-radius: 2px;
  position: relative;
}
.sg-bar::after {
  content: '';
  position: absolute;
  right: 0; top: 0; bottom: 0;
  width: 100%;
  background: var(--done);
  border-radius: 2px;
}
.sg-warn::after { background: var(--warn); }
.sg-done::after { background: var(--fg-dim); }
.tank-metrics {
  display: flex;
  justify-content: space-between;
  font-size: 0.72rem;
  color: var(--fg-dim);
  margin-bottom: 8px;
}
.tank-progress-row {
  height: 2px;
  background: rgba(255,255,255,0.06);
  border-radius: 1px;
}
.tank-progress-fill {
  height: 100%;
  background: var(--done);
  border-radius: 1px;
  transition: width 0.3s ease;
}
.tank-progress-done { background: var(--done); opacity: 0.6; }
.tank-progress-cond { background: var(--fg-dim); opacity: 0.5; }

.alert-strip {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 12px;
  padding: 10px 14px;
  background: rgba(224,160,48,0.08);
  border: 1px solid rgba(224,160,48,0.2);
  border-radius: 8px;
  font-size: 0.78rem;
  color: var(--warn);
}
.alert-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--warn);
  flex-shrink: 0;
  animation: pulse 2s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

/* Hero orchard art */
.hero-art {
  display: flex;
  align-items: flex-end;
  justify-content: center;
  height: 380px;
  position: relative;
}
.orchard-art {
  position: relative;
  width: 100%;
  height: 100%;
}
.ground-line {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 80px;
  background: linear-gradient(to top, #0d1a0a, transparent);
  border-radius: 100% 100% 0 0 / 40px 40px 0 0;
}
.sun-glow {
  position: absolute;
  top: -20px;
  right: -40px;
  width: 200px;
  height: 200px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(201,120,48,0.25) 0%, transparent 70%);
  filter: blur(30px);
}
.atmos-haze {
  position: absolute;
  bottom: 60px;
  left: 0;
  right: 0;
  height: 120px;
  background: linear-gradient(to top, rgba(201,120,48,0.06) 0%, transparent 100%);
  pointer-events: none;
}
.tree {
  position: absolute;
  bottom: 70px;
  display: flex;
  flex-direction: column;
  align-items: center;
  animation: sway 4s ease-in-out infinite;
}
.tree .canopy {
  width: 120px;
  height: 140px;
  background: radial-gradient(ellipse at 50% 60%, #2a5020 0%, #1a3510 60%, transparent 100%);
  border-radius: 50% 50% 45% 45%;
  filter: blur(1px);
}
.tree .trunk {
  width: 10px;
  height: 60px;
  background: linear-gradient(to bottom, #3a2010, #2a1508);
  border-radius: 2px;
}
.t1 { left: 5%; animation-delay: 0s; }
.t1 .canopy { width: 100px; height: 110px; }
.t2 { left: 45%; bottom: 65px; animation-delay: 1.2s; }
.t2 .canopy { width: 140px; height: 160px; opacity: 0.9; }
.t3 { left: 78%; bottom: 75px; animation-delay: 0.7s; }
.t3 .canopy { width: 90px; height: 100px; }
@keyframes sway {
  0%, 100% { transform: rotate(-1deg); }
  50% { transform: rotate(1deg); }
}

/* PHILOSOPHY */
.philosophy {
  padding: 100px 48px;
  background: var(--bg-alt);
  border-top: 1px solid var(--green-border);
  border-bottom: 1px solid var(--green-border);
}
.philosophy-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 180px 1fr;
  gap: 80px;
  align-items: start;
}
.philosophy-mark { padding-top: 8px; }
.mark-ring {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  border: 1.5px solid var(--amber-dim);
  display: flex;
  align-items: center;
  justify-content: center;
}
.mark-inner {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1px solid var(--amber-dim);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0.5;
}
.mark-center {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--amber-dim);
  opacity: 0.6;
}
.philosophy-text { display: flex; flex-direction: column; gap: 20px; }
.section-heading {
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  font-weight: 700;
  color: var(--cream);
  line-height: 1.2;
  letter-spacing: -0.01em;
}
.philosophy-text p {
  font-size: 1rem;
  line-height: 1.75;
  color: var(--fg-muted);
  font-weight: 300;
}

/* HOW */
.how {
  padding: 100px 48px;
}
.how-inner {
  max-width: 1200px;
  margin: 0 auto;
}
.section-label {
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--amber);
  margin-bottom: 16px;
  font-weight: 500;
}
.how .section-heading { margin-bottom: 60px; }
.how-steps {
  display: flex;
  flex-direction: column;
  gap: 0;
}
.how-step {
  display: grid;
  grid-template-columns: 80px 1fr;
  gap: 40px;
  padding: 48px 0;
  border-top: 1px solid var(--green-border);
  align-items: start;
}
.how-step:last-child { border-bottom: 1px solid var(--green-border); }
.step-number {
  font-family: var(--font-display);
  font-size: 2.5rem;
  font-weight: 900;
  color: rgba(201,120,48,0.25);
  line-height: 1;
  padding-top: 4px;
}
.step-content h3 {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--cream);
  margin-bottom: 12px;
}
.step-content p {
  font-size: 0.95rem;
  line-height: 1.7;
  color: var(--fg-muted);
  font-weight: 300;
  max-width: 600px;
}

/* FEATURES */
.features {
  padding: 100px 48px;
  background: var(--bg-alt);
}
.features-inner { max-width: 1200px; margin: 0 auto; }
.features .section-heading { margin-bottom: 60px; }
.feature-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2px;
  background: var(--green-border);
  border: 1px solid var(--green-border);
  border-radius: 16px;
  overflow: hidden;
}
.feature-card {
  background: var(--bg-alt);
  padding: 40px 36px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  transition: background 0.2s;
}
.feature-card:hover { background: var(--green-card); }
.feature-icon { margin-bottom: 4px; }
.feature-card h3 {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--cream);
  line-height: 1.3;
}
.feature-card p {
  font-size: 0.88rem;
  line-height: 1.65;
  color: var(--fg-muted);
  font-weight: 300;
}

/* MANIFESTO */
.manifesto {
  padding: 120px 48px;
  background: var(--bg);
}
.manifesto-inner { max-width: 1200px; margin: 0 auto; }
.manifesto-content {
  max-width: 800px;
  display: flex;
  flex-direction: column;
  gap: 28px;
}
.manifesto-headline {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3.2rem);
  font-weight: 900;
  color: var(--cream);
  line-height: 1.15;
  letter-spacing: -0.02em;
}
.manifesto-body {
  font-size: 1.05rem;
  line-height: 1.75;
  color: var(--fg-muted);
  font-weight: 300;
}

/* FOOTER */
.footer {
  border-top: 1px solid var(--green-border);
  padding: 60px 48px 40px;
  background: var(--bg-alt);
}
.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: start;
  gap: 40px;
  margin-bottom: 40px;
}
.footer-logo {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--amber);
  display: block;
  margin-bottom: 12px;
}
.footer-desc {
  font-size: 0.85rem;
  color: var(--fg-dim);
  line-height: 1.6;
  max-width: 320px;
}
.footer-links span {
  font-size: 0.82rem;
  color: var(--fg-dim);
  letter-spacing: 0.05em;
}
.footer-bottom {
  max-width: 1200px;
  margin: 0 auto;
  border-top: 1px solid var(--green-border);
  padding-top: 24px;
}
.footer-bottom p {
  font-size: 0.8rem;
  color: var(--fg-dim);
  opacity: 0.7;
}

/* RESPONSIVE */
@media (max-width: 900px) {
  .hero-inner { grid-template-columns: 1fr; gap: 48px; }
  .hero-art { display: none; }
  .philosophy-inner { grid-template-columns: 1fr; gap: 32px; }
  .philosophy-mark { display: none; }
  .feature-grid { grid-template-columns: 1fr; }
  .how-step { grid-template-columns: 1fr; gap: 16px; }
  .step-number { font-size: 1.8rem; }
}
@media (max-width: 600px) {
  .hero, .philosophy, .how, .features, .manifesto, .footer {
    padding-left: 24px;
    padding-right: 24px;
  }
  .nav { padding: 0 24px; }
  .footer-inner { flex-direction: column; }
}