:root {
  --bg: #eef4fb;
  --panel: #ffffff;
  --panel-soft: #f6f9fd;
  --line: #c9d9ee;
  --text: #0d2b4f;
  --muted: #4b6583;
  --primary: #0d4f86;
  --primary-dark: #0a3a63;
  --accent: #3aa37f;
  --shadow: 0 16px 40px rgba(13, 43, 79, 0.08);
  --radius-lg: 28px;
  --radius-md: 20px;
  --radius-sm: 14px;
  --container: 1220px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Segoe UI", "Trebuchet MS", Arial, sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top right, rgba(58, 163, 127, 0.12), transparent 26%),
    radial-gradient(circle at top left, rgba(13, 79, 134, 0.10), transparent 24%),
    var(--bg);
  line-height: 1.55;
}

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

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

.container {
  width: min(calc(100% - 40px), var(--container));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(14px);
  background: rgba(238, 244, 251, 0.88);
  border-bottom: 1px solid rgba(201, 217, 238, 0.7);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 18px 0;
}

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

.brand strong,
.brand small {
  display: block;
}

.brand small {
  color: var(--muted);
  font-size: 0.84rem;
}

.brand-mark {
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  border-radius: 14px;
  color: #fff;
  font-size: 1.15rem;
  font-weight: 700;
  background: linear-gradient(135deg, #0d4f86, #3aa37f);
  box-shadow: var(--shadow);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 22px;
  color: var(--muted);
  font-size: 0.95rem;
}

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

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 22px;
  border-radius: 999px;
  border: 1px solid transparent;
  font-weight: 700;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.button:hover,
.button:focus-visible {
  transform: translateY(-1px);
}

.button-primary {
  color: #fff;
  background: linear-gradient(135deg, var(--primary), #2d6aa5);
  box-shadow: 0 14px 30px rgba(13, 79, 134, 0.24);
}

.button-secondary {
  color: var(--primary);
  background: rgba(255, 255, 255, 0.76);
  border-color: var(--line);
}

.hero {
  padding: 44px 0 28px;
}

.hero-stack {
  display: grid;
  gap: 24px;
  max-width: 1500px;
  margin: 0 auto;
  justify-items: center;
}

.hero-stack > * {
  width: 100%;
}

.hero-copy,
.hero-panel,
.cta-panel,
.value-card,
.workflow-card,
.feature-card,
.gallery-card {
  background: rgba(255, 255, 255, 0.88);
  border: 1px solid rgba(201, 217, 238, 0.88);
  box-shadow: var(--shadow);
}

.hero-copy,
.hero-panel {
  border-radius: var(--radius-lg);
  padding: 32px;
}

.trust-panel {
  padding: 26px 30px;
  border-radius: var(--radius-lg);
  border: 1px solid rgba(201, 217, 238, 0.88);
  background: rgba(255, 255, 255, 0.88);
  box-shadow: var(--shadow);
  text-align: center;
}

.hero-copy-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
  justify-items: center;
}

.hero-copy-main,
.hero-copy-side {
  min-width: 0;
}

.hero-title-full {
  max-width: none;
  margin-bottom: 18px;
}

.hero-copy {
  text-align: center;
}

.hero-copy .eyebrow,
.hero-copy .hero-title-full,
.hero-copy .hero-text {
  margin-left: auto;
  margin-right: auto;
}

.hero-copy .hero-text {
  max-width: 980px;
}

.hero-copy-side {
  display: flex;
  justify-content: center;
  width: 100%;
}

.eyebrow {
  margin: 0 0 10px;
  color: var(--primary);
  font-size: 0.82rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

h1,
h2,
h3 {
  margin: 0;
  line-height: 1.12;
}

h1 {
  font-size: clamp(2rem, 3.8vw, 3.15rem);
  max-width: 10.5ch;
  letter-spacing: -0.03em;
}

h2 {
  font-size: clamp(1.8rem, 3vw, 2.8rem);
  margin-bottom: 14px;
}

h3 {
  font-size: 1.22rem;
  margin-bottom: 10px;
}

.hero-text,
.section-heading p,
.feature-card p,
.workflow-card p,
.value-card p,
.metric-card p,
.cta-panel p,
.site-footer p,
.site-footer a,
figcaption {
  color: var(--muted);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin: 22px 0 0;
  justify-content: center;
}

.hero-points {
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-wrap: nowrap;
  gap: 10px 22px;
  align-items: center;
  justify-content: center;
  overflow-x: auto;
  width: 100%;
}

.hero-points li {
  position: relative;
  padding-left: 28px;
  color: var(--text);
  max-width: none;
  white-space: nowrap;
  flex: 0 0 auto;
  font-size: 0.98rem;
}

.hero-points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: linear-gradient(135deg, #3aa37f, #0d4f86);
}

.hero-panel {
  display: grid;
  gap: 14px;
}

.hero-metrics {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.metric-card {
  display: grid;
  grid-template-columns: 56px 1fr;
  gap: 16px;
  align-items: start;
  padding: 16px 18px;
  border-radius: var(--radius-md);
  background: linear-gradient(180deg, rgba(246, 249, 253, 0.92), rgba(255, 255, 255, 0.95));
  border: 1px solid var(--line);
}

.metric-card strong {
  display: block;
  margin-bottom: 4px;
}

.metric-icon,
.feature-icon {
  width: 56px;
  height: 56px;
  display: block;
  flex: 0 0 auto;
  border-radius: 18px;
  background: linear-gradient(135deg, rgba(13, 79, 134, 0.16), rgba(58, 163, 127, 0.12));
  border: 1px solid rgba(13, 79, 134, 0.12);
  position: relative;
  overflow: hidden;
  isolation: isolate;
}

.metric-icon::before,
.metric-icon::after,
.feature-icon::before,
.feature-icon::after {
  content: "";
  position: absolute;
  box-sizing: border-box;
  pointer-events: none;
}

.hero-shot {
  overflow: hidden;
  margin: 8px 0 0;
  border-radius: 24px;
  border: 1px solid var(--line);
  background: #fff;
}

.hero-shot-full {
  margin: 0;
  box-shadow: var(--shadow);
}

.hero-shot img {
  width: 100%;
  height: auto;
}

.hero-shot figcaption {
  padding: 16px 20px 20px;
  background: rgba(255, 255, 255, 0.94);
}

.hash-box {
  margin: 18px auto 14px;
  padding: 16px 18px;
  max-width: 100%;
  border-radius: 18px;
  border: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(246, 249, 253, 0.96), rgba(255, 255, 255, 0.96));
}

.hash-label {
  display: block;
  margin-bottom: 8px;
  color: var(--muted);
  font-size: 0.8rem;
  font-weight: 800;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.hash-box code {
  display: block;
  color: var(--text);
  font-size: 0.95rem;
  line-height: 1.7;
  word-break: break-all;
  font-family: Consolas, "Courier New", monospace;
}

.trust-note {
  margin: 0;
  color: var(--muted);
  font-size: 0.94rem;
}

.section {
  padding: 28px 0 40px;
}

.section-tinted {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.28), rgba(255, 255, 255, 0));
}

.section-heading {
  max-width: 780px;
  margin-bottom: 24px;
}

.value-grid,
.workflow-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.workflow-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.value-card,
.workflow-card {
  padding: 24px;
  border-radius: var(--radius-md);
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.feature-card {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  min-height: 220px;
  padding: 24px;
  border-radius: 24px;
  overflow: hidden;
}

.feature-card .feature-icon {
  position: static;
  align-self: flex-start;
  margin-bottom: 18px;
}

.feature-card h3 {
  width: 100%;
}

.feature-card::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 4px;
  background: var(--accent-line, var(--primary));
}

.feature-card p {
  margin-bottom: 0;
}

.accent-blue { --accent-line: #2f67d7; background: linear-gradient(180deg, #f9fbff, #eef5ff); }
.accent-cyan { --accent-line: #0ea0d1; background: linear-gradient(180deg, #f8fdff, #eefaff); }
.accent-indigo { --accent-line: #4472f3; background: linear-gradient(180deg, #f9fbff, #eef3ff); }
.accent-teal { --accent-line: #08a8c8; background: linear-gradient(180deg, #f8feff, #eefbfd); }
.accent-violet { --accent-line: #9658ff; background: linear-gradient(180deg, #fcf9ff, #f4efff); }
.accent-purple { --accent-line: #7a3ff2; background: linear-gradient(180deg, #fbf8ff, #f2edff); }
.accent-green { --accent-line: #4a9d82; background: linear-gradient(180deg, #f9fefc, #eef8f4); }
.accent-lilac { --accent-line: #7a4bf5; background: linear-gradient(180deg, #fbf9ff, #f3efff); }
.accent-slate { --accent-line: #7385a0; background: linear-gradient(180deg, #fcfdff, #f2f6fb); }
.accent-ocean { --accent-line: #15956c; background: linear-gradient(180deg, #f9fffe, #edf8f5); }
.accent-amber { --accent-line: #d97a1d; background: linear-gradient(180deg, #fffdf9, #fbf2e7); }
.accent-rose { --accent-line: #e14d92; background: linear-gradient(180deg, #fffafc, #fdf0f6); }

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.gallery-card {
  overflow: hidden;
  border-radius: 24px;
}

.gallery-card img {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  background: #fff;
}

.gallery-card figcaption {
  padding: 16px 18px 20px;
  font-size: 0.94rem;
}

.gallery-card-wide {
  grid-column: span 2;
}

.cta-panel {
  display: grid;
  grid-template-columns: 1.4fr 0.6fr;
  gap: 20px;
  align-items: center;
  padding: 28px 32px;
  border-radius: var(--radius-lg);
}

.cta-actions {
  display: grid;
  gap: 12px;
}

.site-footer {
  padding: 26px 0 40px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.7fr 0.9fr;
  gap: 24px;
  padding: 28px 0 0;
  border-top: 1px solid rgba(201, 217, 238, 0.8);
}

.footer-brand,
.footer-title {
  color: var(--text);
  font-weight: 800;
  margin-bottom: 10px;
}

.site-footer a {
  display: block;
  margin-bottom: 8px;
}

.icon-network::before {
  inset: 17px 15px auto;
  height: 4px;
  background: var(--primary);
  border-radius: 999px;
}

.icon-network::after {
  inset: 28px 16px auto 16px;
  height: 4px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  border-radius: 999px;
}

.icon-chip::before {
  inset: 15px;
  border: 3px solid var(--primary);
  border-radius: 10px;
}

.icon-chip::after {
  inset: 9px auto 9px 50%;
  width: 2px;
  transform: translateX(-50%);
  background:
    linear-gradient(var(--primary), var(--primary)) left 0 top 0 / 2px 6px no-repeat,
    linear-gradient(var(--primary), var(--primary)) left 0 bottom 0 / 2px 6px no-repeat;
}

.icon-lab::before {
  left: 20px;
  top: 16px;
  width: 16px;
  height: 22px;
  border: 3px solid var(--primary);
  border-bottom-left-radius: 10px;
  border-bottom-right-radius: 10px;
  border-top: 0;
}

.icon-lab::after {
  left: 21px;
  top: 12px;
  width: 14px;
  height: 3px;
  background: var(--primary);
}

.icon-port::before,
.icon-search::before,
.icon-tcp::before,
.icon-udp::before,
.icon-serial::before,
.icon-terminal::before,
.icon-mqtt::before,
.icon-ble::before,
.icon-socket::before,
.icon-firmware::before,
.icon-tools::before {
  inset: 15px;
  border-radius: 10px;
  border: 3px solid var(--accent-line, var(--primary));
}

.icon-port::after {
  left: 21px;
  top: 18px;
  width: 14px;
  height: 14px;
  border-left: 3px solid var(--accent-line, var(--primary));
  border-bottom: 3px solid var(--accent-line, var(--primary));
  transform: rotate(45deg);
}

.icon-search::after {
  width: 14px;
  height: 14px;
  border: 3px solid var(--accent-line, var(--primary));
  border-radius: 50%;
  left: 16px;
  top: 16px;
  box-shadow: 12px 12px 0 -9px var(--accent-line, var(--primary));
}

.icon-tcp::after,
.icon-udp::after,
.icon-serial::after,
.icon-terminal::after,
.icon-mqtt::after,
.icon-ble::after,
.icon-socket::after,
.icon-firmware::after,
.icon-tools::after {
  left: 19px;
  top: 19px;
  width: 18px;
  height: 18px;
  background: var(--accent-line, var(--primary));
  border-radius: 4px;
}

.icon-udp::after {
  clip-path: polygon(0 0, 100% 50%, 0 100%, 22% 50%);
}

.icon-serial::after {
  border-radius: 2px;
  box-shadow: inset 0 0 0 3px rgba(255, 255, 255, 0.6);
}

.icon-terminal::after {
  clip-path: polygon(0 0, 100% 0, 100% 100%, 0 100%, 0 65%, 38% 65%, 38% 35%, 0 35%);
}

.icon-mqtt::after {
  background: transparent;
  width: 18px;
  height: 18px;
  left: 19px;
  top: 19px;
  border-left: 3px solid var(--accent-line, var(--primary));
  border-bottom: 3px solid var(--accent-line, var(--primary));
  transform: rotate(-45deg);
}

.icon-ble::after {
  background: transparent;
  width: 16px;
  height: 22px;
  left: 20px;
  top: 16px;
  border-left: 3px solid var(--accent-line, var(--primary));
  border-right: 3px solid var(--accent-line, var(--primary));
  clip-path: polygon(50% 0, 100% 38%, 64% 50%, 100% 62%, 50% 100%, 0 62%, 36% 50%, 0 38%);
}

.icon-socket::after {
  border-radius: 50%;
  box-shadow:
    -10px 0 0 -4px var(--accent-line, var(--primary)),
    10px 0 0 -4px var(--accent-line, var(--primary));
}

.icon-firmware::after {
  clip-path: polygon(50% 0, 100% 42%, 72% 42%, 72% 100%, 28% 100%, 28% 42%, 0 42%);
}

.icon-tools::after {
  width: 22px;
  height: 6px;
  left: 17px;
  top: 25px;
  border-radius: 999px;
  box-shadow: 0 -8px 0 0 var(--accent-line, var(--primary)), 0 8px 0 0 var(--accent-line, var(--primary));
}

@media (max-width: 1100px) {
  .hero-metrics,
  .hero-copy-grid,
  .cta-panel,
  .workflow-grid,
  .footer-grid,
  .feature-grid,
  .gallery-grid,
  .value-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .gallery-card-wide {
    grid-column: span 2;
  }
}

@media (max-width: 780px) {
  .nav {
    flex-wrap: wrap;
  }

  .nav-links {
    width: 100%;
    justify-content: center;
    flex-wrap: wrap;
  }

  .hero-metrics,
  .hero-copy-grid,
  .cta-panel,
  .workflow-grid,
  .footer-grid,
  .feature-grid,
  .gallery-grid,
  .value-grid {
    grid-template-columns: 1fr;
  }

  .gallery-card-wide {
    grid-column: span 1;
  }

  .hero-copy,
  .hero-panel,
  .cta-panel {
    padding: 24px;
  }

  .container {
    width: min(calc(100% - 24px), var(--container));
  }

  .hero-points {
    flex-wrap: wrap;
    overflow-x: visible;
  }

  .hero-points li {
    white-space: normal;
  }

  h1 {
    max-width: none;
  }
}