:root {
  --color-ink: #0b0f14;
  --color-bg: #ffffff;
  --color-primary: #2e7d32;
  --color-primary-soft: #66bb6a;
  --color-warning: #f9a825;
  --color-danger: #c62828;
  --color-gray-100: #eceff1;
  --color-gray-300: #cdd7dc;
  --color-gray-500: #8b9ca5;
  --color-text-soft: #42535c;
  --font-body: "IBM Plex Sans", "Segoe UI", sans-serif;
  --font-head: "Space Grotesk", "IBM Plex Sans", "Segoe UI", sans-serif;
  --radius-sm: 10px;
  --radius-md: 14px;
  --radius-lg: 18px;
  --shadow-soft: 0 14px 40px rgba(11, 15, 20, 0.08);
  --container-width: 1140px;
  --target-min: 44px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  overflow-x: hidden;
  font-family: var(--font-body);
  color: var(--color-ink);
  background: linear-gradient(180deg, #f7faf7 0%, var(--color-bg) 220px);
}

a {
  color: inherit;
}

img {
  max-width: 100%;
  height: auto;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.container {
  width: min(var(--container-width), calc(100% - 3rem));
  margin-inline: auto;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(255, 255, 255, 0.96);
  border-bottom: 1px solid rgba(176, 190, 197, 0.5);
  backdrop-filter: blur(6px);
}

.topbar.topbar-scrolled {
  box-shadow: 0 10px 25px rgba(11, 15, 20, 0.07);
}

.nav-row {
  min-height: 80px;
  display: flex;
  align-items: center;
  gap: 1rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.28rem;
  text-decoration: none;
}

.brand-logo-frame {
  width: 96px;
  height: 96px;
  overflow: hidden;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.brand-logo {
  width: 100%;
  height: 100%;
  object-fit: contain;
  transform: scale(1.78);
  transform-origin: center;
}

.brand-text {
  font-family: var(--font-head);
  font-size: 1.55rem;
  font-weight: 800;
  letter-spacing: 0.01em;
  color: var(--color-ink);
}

.nav-shell {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 1.4rem;
}

.nav-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.nav-list a {
  text-decoration: none;
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--color-ink);
  overflow-wrap: anywhere;
}

.nav-list a:hover,
.nav-list a:focus-visible {
  color: var(--color-primary);
}

.menu-toggle {
  display: none;
  margin-left: auto;
  width: var(--target-min);
  height: var(--target-min);
  border: 1px solid var(--color-gray-300);
  border-radius: var(--radius-sm);
  background: #fff;
  cursor: pointer;
  padding: 0;
}

.menu-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--color-ink);
  margin: 5px auto;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: var(--target-min);
  text-decoration: none;
  padding: 0.7rem 1.2rem;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  font-size: 0.92rem;
  font-weight: 700;
  transition: all 0.2s ease;
}

.btn-small {
  padding-inline: 1rem;
}

.btn-primary {
  color: #fff;
  background: var(--color-primary);
  box-shadow: 0 8px 20px rgba(46, 125, 50, 0.24);
}

.btn-primary:hover,
.btn-primary:focus-visible {
  background: #27682a;
  box-shadow: 0 12px 24px rgba(46, 125, 50, 0.3);
}

.btn[disabled] {
  opacity: 0.72;
  cursor: not-allowed;
  transform: none;
}

.btn-outline {
  background: #fff;
  color: var(--color-ink);
  border-color: var(--color-gray-300);
}

.btn-outline:hover,
.btn-outline:focus-visible {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.section {
  padding: 4rem 0;
}

.hero {
  padding-top: 4.6rem;
}

.hero-layout {
  display: grid;
  gap: 2.4rem;
  align-items: center;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
}

.eyebrow {
  margin: 0 0 0.7rem;
  font-size: 0.79rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #2b5f2f;
}

h1,
h2,
h3 {
  font-family: var(--font-head);
}

.hero-content h1 {
  margin: 0;
  max-width: 21ch;
  font-size: clamp(2rem, 4vw, 3rem);
  line-height: 1.1;
}

.hero-text {
  margin: 1rem 0 0;
  max-width: 60ch;
  line-height: 1.7;
  color: var(--color-text-soft);
}

.hero-actions {
  margin-top: 1.6rem;
  display: flex;
  gap: 0.8rem;
  flex-wrap: wrap;
}

.hero-tags {
  margin: 1.2rem 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0.55rem;
}

.hero-tags li {
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--color-text-soft);
}

.hero-preview {
  border: 1px solid rgba(176, 190, 197, 0.75);
  border-radius: var(--radius-lg);
  padding: 1.25rem;
  background: linear-gradient(180deg, #ffffff 0%, #f3f8f3 100%);
  box-shadow: var(--shadow-soft);
}

.hero-image {
  margin: 0 0 1rem;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid rgba(176, 190, 197, 0.65);
  background: #fff;
}

.hero-image img {
  width: 100%;
  height: 180px;
  display: block;
  object-fit: cover;
}

.preview-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 0.8rem;
  padding-bottom: 0.9rem;
  border-bottom: 1px solid var(--color-gray-100);
}

.preview-header p {
  margin: 0;
  font-size: 0.82rem;
  color: var(--color-gray-500);
}

.preview-header strong {
  display: block;
  margin-top: 0.24rem;
  font-size: 1rem;
}

.preview-time {
  font-size: 0.78rem;
  color: var(--color-gray-500);
}

.preview-metrics {
  margin-top: 1rem;
  display: grid;
  gap: 0.75rem;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.metric {
  border: 1px solid var(--color-gray-100);
  border-radius: var(--radius-sm);
  padding: 0.68rem;
  background: #fff;
}

.metric p {
  margin: 0;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-gray-500);
}

.metric strong {
  display: block;
  margin-top: 0.38rem;
  font-size: 1.35rem;
}

.metric-ok {
  border-top: 4px solid var(--color-primary);
}

.metric-warn {
  border-top: 4px solid var(--color-warning);
}

.metric-danger {
  border-top: 4px solid var(--color-danger);
}

.preview-chart {
  margin-top: 1rem;
  display: grid;
  gap: 0.8rem;
}

.chart-row {
  display: grid;
  gap: 0.38rem;
}

.chart-row span {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--color-text-soft);
}

.bar-track {
  position: relative;
  height: 8px;
  border-radius: 999px;
  background: #dbe3e7;
  overflow: hidden;
}

.bar-fill {
  position: absolute;
  inset: 0 auto 0 0;
  width: 56%;
  border-radius: inherit;
}

.bar-fill.humid {
  width: 72%;
  background: #3984a0;
}

.bar-fill.temp {
  width: 58%;
  background: #d88442;
}

.bar-fill.ec {
  width: 63%;
  background: var(--color-primary-soft);
}

.section-heading h2 {
  margin: 0;
  max-width: 24ch;
  font-size: clamp(1.6rem, 2.8vw, 2.2rem);
  line-height: 1.2;
}

.value-grid {
  margin-top: 1.4rem;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}

.value-card,
.module-card {
  border: 1px solid rgba(176, 190, 197, 0.7);
  border-radius: var(--radius-md);
  padding: 1.2rem;
  background: #fff;
}

.module-image {
  width: 100%;
  height: 148px;
  display: block;
  object-fit: cover;
  border-radius: 10px;
  border: 1px solid rgba(176, 190, 197, 0.65);
  margin-bottom: 0.9rem;
}

.value-card h3,
.module-card h3 {
  margin: 0;
  font-size: 1rem;
}

.value-card p,
.module-card p {
  margin: 0.65rem 0 0;
  line-height: 1.65;
  color: var(--color-text-soft);
}

.section-alt {
  background: #f8fbf8;
  border-top: 1px solid rgba(176, 190, 197, 0.5);
  border-bottom: 1px solid rgba(176, 190, 197, 0.5);
}

.module-grid {
  margin-top: 1.4rem;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}

.module-card header {
  display: flex;
  align-items: center;
  gap: 0.55rem;
}

.status-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

.status-dot.ok {
  background: var(--color-primary);
}

.status-dot.warn {
  background: var(--color-warning);
}

.status-dot.danger {
  background: var(--color-danger);
}

.contact-card {
  border: 1px solid rgba(176, 190, 197, 0.7);
  border-radius: var(--radius-lg);
  background: linear-gradient(180deg, #ffffff 0%, #f4f8f4 100%);
  box-shadow: var(--shadow-soft);
  padding: clamp(1.2rem, 3vw, 2rem);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.2rem;
}

.contact-card h2 {
  margin: 0;
  max-width: 25ch;
  font-size: clamp(1.5rem, 2.7vw, 2rem);
}

.contact-card p {
  margin: 0.7rem 0 0;
  line-height: 1.7;
  color: var(--color-text-soft);
}

.contact-actions {
  display: flex;
  gap: 0.7rem;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.contact-form {
  width: min(520px, 100%);
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.75rem;
  margin-bottom: 0.8rem;
}

.field {
  display: grid;
  gap: 0.32rem;
  font-size: 0.86rem;
  font-weight: 600;
  color: var(--color-text-soft);
}

.field input,
.field textarea {
  width: 100%;
  border: 1px solid var(--color-gray-300);
  border-radius: 10px;
  background: #fff;
  color: var(--color-ink);
  font: inherit;
  font-size: 0.95rem;
  padding: 0.64rem 0.72rem;
}

.field textarea {
  resize: vertical;
  min-height: 96px;
}

.field input:focus-visible,
.field textarea:focus-visible {
  outline: 2px solid rgba(46, 125, 50, 0.2);
  border-color: var(--color-primary);
}

.field-full {
  grid-column: 1 / -1;
}

.honeypot {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}

.form-status {
  margin: 0.65rem 0 0;
  font-size: 0.9rem;
  min-height: 1.2em;
  color: var(--color-text-soft);
}

.form-status.is-error {
  color: var(--color-danger);
}

.form-status.is-success {
  color: var(--color-primary);
}

.site-footer {
  border-top: 1px solid rgba(176, 190, 197, 0.56);
  background: #f8fafb;
}

.footer-row {
  min-height: 70px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.8rem;
}

.footer-row p {
  margin: 0;
  font-size: 0.9rem;
  color: #5a6d76;
}

@media (max-width: 1024px) {
  .menu-toggle {
    display: inline-block;
  }

  .nav-shell {
    position: absolute;
    top: calc(100% - 0.2rem);
    right: 1rem;
    width: min(360px, calc(100% - 2rem));
    padding: 0.9rem;
    background: #fff;
    border: 1px solid var(--color-gray-300);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-soft);
    flex-direction: column;
    align-items: stretch;
    gap: 1rem;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    transition: opacity 0.2s ease, transform 0.2s ease, visibility 0.2s ease;
    max-height: calc(100vh - 98px);
    overflow-y: auto;
  }

  .nav-shell.open {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
  }

  .nav-list {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.9rem;
  }

  .nav-shell .btn {
    width: 100%;
  }

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

  .contact-card {
    flex-direction: column;
    align-items: flex-start;
  }

  .contact-actions {
    justify-content: flex-start;
  }

  .form-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 700px) {
  .container {
    width: min(var(--container-width), calc(100% - 1.6rem));
  }

  .nav-row {
    min-height: 92px;
  }

  .brand-logo {
    height: 100%;
    width: 100%;
    transform: scale(1.62);
  }

  .brand-logo-frame {
    height: 72px;
    width: 72px;
  }

  .brand-text {
    font-size: 1.35rem;
  }

  .section {
    padding: 3.1rem 0;
  }

  .hero {
    padding-top: 2.5rem;
  }

  .hero-content h1 {
    font-size: clamp(1.7rem, 8vw, 2.2rem);
  }

  .preview-metrics {
    grid-template-columns: 1fr;
  }

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

  .footer-row {
    min-height: 84px;
    flex-direction: column;
    justify-content: center;
    text-align: center;
  }
}

@media (max-width: 560px) {
  .topbar {
    padding-bottom: 0.35rem;
  }

  .container {
    width: min(var(--container-width), calc(100% - 1.2rem));
  }

  .nav-row {
    min-height: 78px;
    gap: 0.55rem;
  }

  .brand-logo-frame {
    height: 58px;
    width: 58px;
  }

  .brand-text {
    font-size: 1.18rem;
  }

  .nav-shell {
    right: 0.6rem;
    width: calc(100% - 1.2rem);
    padding: 0.8rem;
  }

  .hero-preview,
  .value-card,
  .module-card {
    padding: 1rem;
  }

  .contact-card {
    padding: 1rem;
  }
}

@media (max-width: 420px) {
  .menu-toggle {
    width: var(--target-min);
    height: var(--target-min);
  }

  .hero-content h1 {
    font-size: clamp(1.55rem, 9vw, 1.95rem);
  }

  .section-heading h2 {
    font-size: clamp(1.28rem, 7vw, 1.55rem);
  }

  .preview-header {
    flex-direction: column;
    align-items: stretch;
  }
}