:root {
  --bg: #f5f8f5;
  --surface: #ffffff;
  --surface-soft: #edf7f1;
  --primary: #0f5c42;
  --primary-dark: #0a3e2d;
  --primary-light: #39d98a;
  --accent: #b9ef75;
  --text: #13231b;
  --muted: #66776d;
  --line: #dce8df;
  --shadow: 0 24px 60px rgba(22, 64, 45, 0.12);
  --radius-lg: 30px;
  --radius-md: 20px;
  --radius-sm: 14px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Manrope", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
}

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

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

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

.container {
  width: min(1180px, calc(100% - 40px));
  margin-inline: auto;
}

.section {
  padding: 100px 0;
}

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 18px 0;
  transition: .3s ease;
}

.site-header.scrolled {
  background: rgba(250, 252, 250, .88);
  backdrop-filter: blur(18px);
  box-shadow: 0 10px 30px rgba(19, 35, 27, .08);
  padding: 12px 0;
}

.nav-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
}

.brand-mark {
  width: 46px;
  height: 46px;
  border-radius: 14px;
  display: grid;
  place-items: center;
  color: #fff;
  font-size: 22px;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  box-shadow: 0 10px 25px rgba(15, 92, 66, .25);
}

.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
}

.brand-text strong {
  font-size: 18px;
  letter-spacing: -.03em;
}

.brand-text small {
  color: var(--muted);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: .12em;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 28px;
}

.main-nav a {
  font-size: 14px;
  font-weight: 700;
  color: #31453a;
  transition: .2s;
}

.main-nav a:hover {
  color: var(--primary);
}

.nav-cta {
  padding: 12px 18px;
  border-radius: 999px;
  background: var(--primary);
  color: #fff !important;
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border: 0;
  background: #fff;
  border-radius: 12px;
  color: var(--primary-dark);
  cursor: pointer;
}

.hero {
  min-height: 820px;
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  padding: 150px 0 120px;
  background:
    radial-gradient(circle at 80% 20%, rgba(57, 217, 138, .18), transparent 35%),
    linear-gradient(135deg, #f8fbf8 0%, #ecf8f0 100%);
}

.hero-bg::before,
.hero-bg::after {
  content: "";
  position: absolute;
  border-radius: 50%;
  filter: blur(2px);
}

.hero-bg::before {
  width: 520px;
  height: 520px;
  right: -220px;
  top: -110px;
  background: rgba(185, 239, 117, .18);
}

.hero-bg::after {
  width: 360px;
  height: 360px;
  left: -120px;
  bottom: 70px;
  background: rgba(57, 217, 138, .13);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.05fr .95fr;
  gap: 70px;
  align-items: center;
  position: relative;
  z-index: 2;
}

.eyebrow,
.section-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 14px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--primary);
  background: rgba(57, 217, 138, .12);
}

.hero h1 {
  margin: 24px 0;
  font-size: clamp(46px, 6vw, 78px);
  line-height: 1.04;
  letter-spacing: -.055em;
}

.hero h1 span {
  color: var(--primary);
}

.hero-copy > p {
  max-width: 650px;
  font-size: 18px;
  color: var(--muted);
}

.hero-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-top: 34px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 54px;
  padding: 0 22px;
  border-radius: 999px;
  font-weight: 800;
  transition: .25s ease;
}

.btn:hover {
  transform: translateY(-2px);
}

.btn-primary {
  color: #fff;
  background: linear-gradient(135deg, var(--primary), #147352);
  box-shadow: 0 16px 30px rgba(15, 92, 66, .22);
}

.btn-secondary {
  background: rgba(255,255,255,.85);
  border: 1px solid var(--line);
}

.hero-trust {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  margin-top: 45px;
  padding-top: 28px;
  border-top: 1px solid var(--line);
}

.hero-trust div {
  display: flex;
  flex-direction: column;
}

.hero-trust strong {
  font-size: 18px;
}

.hero-trust span {
  color: var(--muted);
  font-size: 12px;
}

.hero-visual {
  position: relative;
}

.dashboard-card {
  padding: 28px;
  border: 1px solid rgba(255,255,255,.8);
  border-radius: var(--radius-lg);
  background: rgba(255,255,255,.88);
  backdrop-filter: blur(20px);
  box-shadow: var(--shadow);
}

.dashboard-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 22px;
}

.dashboard-head small,
.sensor-card small,
.chart-head small {
  color: var(--muted);
}

.dashboard-head h3 {
  margin: 2px 0 0;
  font-size: 21px;
}

.live-badge {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 8px 12px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 800;
  color: #087b4d;
  background: #e6fbef;
}

.live-badge i {
  font-size: 7px;
  animation: pulse 1.5s infinite;
}

.sensor-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
}

.sensor-card {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 12px;
  align-items: center;
  padding: 16px;
  border: 1px solid #e5eee8;
  border-radius: 17px;
  background: #fbfdfb;
}

.sensor-icon {
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  border-radius: 12px;
  color: var(--primary);
  background: var(--surface-soft);
}

.sensor-card div {
  display: flex;
  flex-direction: column;
}

.sensor-card strong {
  font-size: 20px;
}

.status {
  grid-column: 2;
  justify-self: start;
  font-size: 10px;
  font-weight: 800;
  padding: 4px 8px;
  border-radius: 999px;
}

.status.good {
  color: #0b7a4b;
  background: #e4f9ed;
}

.status.neutral {
  color: #7a6512;
  background: #fff7d9;
}

.mini-chart {
  margin-top: 18px;
  padding: 18px;
  border-radius: 18px;
  background: linear-gradient(180deg, #0f3d2e, #092c21);
  color: white;
}

.chart-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.chart-head small {
  color: rgba(255,255,255,.55);
}

.mini-chart svg {
  display: block;
  margin-top: 10px;
}

.floating-note {
  position: absolute;
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 250px;
  padding: 15px;
  border-radius: 16px;
  background: #fff;
  box-shadow: 0 18px 38px rgba(20, 48, 35, .15);
}

.floating-note > i {
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  border-radius: 11px;
  color: #fff;
  background: var(--primary);
}

.floating-note div {
  display: flex;
  flex-direction: column;
}

.floating-note strong {
  font-size: 12px;
}

.floating-note span {
  font-size: 10px;
  color: var(--muted);
}

.note-one {
  left: -55px;
  bottom: 65px;
}

.note-two {
  right: -30px;
  top: 60px;
}

.hero-wave {
  position: absolute;
  bottom: -1px;
  left: 0;
  width: 100%;
  height: 70px;
  background: var(--bg);
  clip-path: ellipse(70% 55% at 50% 100%);
}

.intro-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: start;
}

.section-copy h2,
.section-header h2,
.impact-copy h2,
.cta-card h2 {
  margin: 18px 0;
  font-size: clamp(34px, 4vw, 52px);
  line-height: 1.15;
  letter-spacing: -.045em;
}

.section-copy p,
.section-header p,
.impact-copy p,
.cta-card p {
  color: var(--muted);
  font-size: 17px;
}

.section-header {
  max-width: 760px;
  margin-bottom: 50px;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}

.feature-card {
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--surface);
  transition: .3s ease;
}

.feature-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow);
  border-color: transparent;
}

.feature-icon {
  width: 52px;
  height: 52px;
  display: grid;
  place-items: center;
  border-radius: 15px;
  font-size: 20px;
  color: var(--primary);
  background: var(--surface-soft);
}

.feature-card h3,
.step h3,
.use-case h3 {
  margin: 20px 0 8px;
  font-size: 20px;
}

.feature-card p,
.step p,
.use-case p {
  color: var(--muted);
  margin: 0;
}

.how-it-works {
  background: #fff;
}

.steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.step {
  position: relative;
  padding: 28px 22px;
  border-radius: var(--radius-md);
  background: #f7faf7;
  border: 1px solid var(--line);
}

.step-number {
  position: absolute;
  right: 18px;
  top: 16px;
  font-size: 36px;
  font-weight: 800;
  color: rgba(15, 92, 66, .1);
}

.step-icon {
  width: 48px;
  height: 48px;
  display: grid;
  place-items: center;
  border-radius: 14px;
  color: #fff;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
}

.impact {
  color: #fff;
  background:
    radial-gradient(circle at 90% 20%, rgba(185,239,117,.22), transparent 26%),
    linear-gradient(135deg, #0e3c2d, #071f18);
}

.impact-grid {
  display: grid;
  grid-template-columns: 1.1fr .9fr;
  gap: 70px;
  align-items: center;
}

.section-label.light {
  color: #dfffc9;
  background: rgba(255,255,255,.08);
}

.impact-copy p {
  color: rgba(255,255,255,.65);
}

.impact-list {
  display: grid;
  gap: 13px;
  margin-top: 30px;
}

.impact-list div {
  display: flex;
  align-items: center;
  gap: 10px;
}

.impact-list i {
  color: var(--accent);
}

.stats-card {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  padding: 22px;
  border: 1px solid rgba(255,255,255,.1);
  border-radius: 26px;
  background: rgba(255,255,255,.06);
  backdrop-filter: blur(16px);
}

.stat {
  min-height: 150px;
  padding: 22px;
  border-radius: 18px;
  background: rgba(255,255,255,.06);
}

.stat strong {
  display: block;
  font-size: 30px;
  color: var(--accent);
}

.stat span {
  color: rgba(255,255,255,.65);
}

.use-case-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.use-case {
  padding: 26px;
  border-radius: var(--radius-md);
  background: var(--surface);
  border: 1px solid var(--line);
}

.use-case > i {
  font-size: 30px;
  color: var(--primary);
}

.cta-section {
  padding-top: 30px;
}

.cta-card {
  display: grid;
  grid-template-columns: 1.1fr .9fr;
  gap: 50px;
  align-items: center;
  padding: 55px;
  border-radius: 32px;
  color: #fff;
  background:
    radial-gradient(circle at 85% 20%, rgba(185,239,117,.25), transparent 28%),
    linear-gradient(135deg, #0f5c42, #0a3e2d);
  box-shadow: var(--shadow);
}

.cta-card p {
  color: rgba(255,255,255,.7);
}

.cta-actions {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.btn-light {
  background: #fff;
  color: var(--primary-dark);
}

.btn-outline-light {
  color: #fff;
  border: 1px solid rgba(255,255,255,.25);
}

.site-footer {
  padding: 80px 0 30px;
  background: #071e17;
  color: #fff;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr .6fr .6fr;
  gap: 70px;
}

.footer-brand .brand-text small {
  color: rgba(255,255,255,.5);
}

.footer-grid p {
  max-width: 450px;
  color: rgba(255,255,255,.55);
}

.footer-grid h4 {
  margin: 0 0 18px;
}

.footer-grid > div:not(:first-child) {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-grid a,
.footer-grid span {
  color: rgba(255,255,255,.6);
}

.footer-grid a:hover {
  color: #fff;
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  margin-top: 60px;
  padding-top: 25px;
  border-top: 1px solid rgba(255,255,255,.08);
  color: rgba(255,255,255,.45);
  font-size: 13px;
}

.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity .7s ease, transform .7s ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

@keyframes pulse {
  0%, 100% { opacity: .4; transform: scale(.8); }
  50% { opacity: 1; transform: scale(1); }
}

@media (max-width: 1024px) {
  .hero-grid,
  .impact-grid,
  .cta-card {
    grid-template-columns: 1fr;
  }

  .hero {
    padding-top: 135px;
  }

  .hero-visual {
    max-width: 680px;
    margin-inline: auto;
  }

  .feature-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .steps,
  .use-case-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .cta-actions {
    flex-direction: row;
    flex-wrap: wrap;
  }
}

@media (max-width: 760px) {
  .container {
    width: min(100% - 24px, 1180px);
  }

  .section {
    padding: 72px 0;
  }

  .nav-toggle {
    display: grid;
    place-items: center;
  }

  .main-nav {
    position: absolute;
    top: calc(100% + 10px);
    left: 12px;
    right: 12px;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 12px;
    border-radius: 18px;
    background: #fff;
    box-shadow: var(--shadow);
  }

  .main-nav.open {
    display: flex;
  }

  .main-nav a {
    padding: 13px 14px;
  }

  .nav-cta {
    text-align: center;
    margin-top: 6px;
  }

  .hero {
    min-height: auto;
    padding: 120px 0 100px;
  }

  .hero-grid {
    gap: 50px;
  }

  .hero h1 {
    font-size: 46px;
  }

  .hero-trust {
    gap: 12px;
  }

  .sensor-grid,
  .feature-grid,
  .steps,
  .stats-card,
  .use-case-grid,
  .intro-grid,
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .floating-note {
    position: static;
    margin-top: 14px;
  }

  .dashboard-card {
    padding: 18px;
  }

  .intro-grid,
  .impact-grid {
    gap: 35px;
  }

  .cta-card {
    padding: 32px 24px;
  }

  .cta-actions {
    flex-direction: column;
  }

  .footer-bottom {
    flex-direction: column;
  }
}

@media (max-width: 480px) {
  .hero h1 {
    font-size: 39px;
  }

  .hero-actions .btn {
    width: 100%;
  }

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

  .hero-trust div {
    padding: 8px 0;
  }

  .section-copy h2,
  .section-header h2,
  .impact-copy h2,
  .cta-card h2 {
    font-size: 34px;
  }
}