:root {
  --bg: #f6f8fb;
  --surface: #ffffff;
  --ink: #10131a;
  --muted: #5d6678;
  --soft: #edf2f8;
  --line: #dfe7f1;
  --blue: #0057ff;
  --cyan: #00d4ff;
  --navy: #07111f;
  --shadow: 0 24px 70px rgba(15, 28, 52, 0.1);
  --radius: 8px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background:
    radial-gradient(circle at 80% 8%, rgba(0, 212, 255, 0.14), transparent 28%),
    radial-gradient(circle at 10% 32%, rgba(0, 87, 255, 0.08), transparent 30%),
    var(--bg);
  color: var(--ink);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  letter-spacing: 0;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  background:
    linear-gradient(90deg, rgba(16, 19, 26, 0.035) 1px, transparent 1px),
    linear-gradient(180deg, rgba(16, 19, 26, 0.03) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: linear-gradient(to bottom, black, transparent 70%);
  pointer-events: none;
}

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

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  min-height: 76px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 0 max(20px, calc((100vw - 1180px) / 2));
  border-bottom: 1px solid rgba(223, 231, 241, 0.82);
  background: rgba(246, 248, 251, 0.82);
  backdrop-filter: blur(18px);
  transition: box-shadow 180ms ease, background 180ms ease;
}

.site-header.is-scrolled {
  background: rgba(255, 255, 255, 0.92);
  box-shadow: 0 14px 36px rgba(15, 28, 52, 0.08);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 900;
  letter-spacing: -0.03em;
}

.brand-mark {
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  border-radius: 999px;
  background: var(--navy);
  color: var(--cyan);
  font-size: 0.82rem;
  box-shadow: 0 0 0 6px rgba(0, 212, 255, 0.08);
}

.main-nav {
  display: flex;
  align-items: center;
  gap: clamp(16px, 2.8vw, 32px);
  color: var(--muted);
  font-size: 0.92rem;
  font-weight: 760;
}

.main-nav a:not(.nav-cta) {
  position: relative;
  padding: 8px 0;
}

.main-nav a:not(.nav-cta)::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 2px;
  height: 2px;
  background: var(--blue);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 180ms ease;
}

.main-nav a:hover::after {
  transform: scaleX(1);
  transform-origin: left;
}

.nav-cta,
.button {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius);
  font-weight: 850;
  white-space: nowrap;
  transition: transform 180ms ease, box-shadow 180ms ease, border-color 180ms ease, background 180ms ease;
}

.nav-cta {
  padding: 0 18px;
  background: var(--ink);
  color: white;
}

.button {
  padding: 0 22px;
  border: 1px solid transparent;
}

.button:hover,
.nav-cta:hover {
  transform: translateY(-2px);
}

.primary {
  background: var(--blue);
  color: white;
  box-shadow: 0 14px 32px rgba(0, 87, 255, 0.18);
}

.secondary {
  border-color: var(--line);
  background: rgba(255, 255, 255, 0.72);
  color: var(--ink);
}

.menu-toggle {
  display: none;
}

.hero,
.built-for,
.metric-strip,
.section,
.contact-section,
.site-footer {
  width: min(1180px, calc(100% - 40px));
  margin: 0 auto;
}

.built-for {
  padding: 0 0 clamp(38px, 6vw, 72px);
}

.audience-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.audience-grid span,
.trust-grid span {
  display: inline-flex;
  min-height: 38px;
  align-items: center;
  padding: 0 14px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.78);
  color: var(--ink);
  font-size: 0.9rem;
  font-weight: 800;
  box-shadow: 0 10px 30px rgba(15, 28, 52, 0.05);
}

.hero {
  min-height: calc(100svh - 76px);
  display: grid;
  grid-template-columns: 0.96fr 1.04fr;
  gap: clamp(36px, 6vw, 84px);
  align-items: center;
  padding: clamp(34px, 5vw, 68px) 0;
}

.eyebrow {
  margin: 0 0 16px;
  color: var(--blue);
  font-size: 0.78rem;
  font-weight: 900;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  overflow-wrap: anywhere;
}

h1,
h2,
h3 {
  margin: 0;
  color: var(--ink);
  letter-spacing: -0.055em;
  line-height: 0.98;
}

h1 {
  max-width: 12.8ch;
  font-size: clamp(3.15rem, 5.8vw, 5.85rem);
  font-weight: 950;
}

h2 {
  max-width: 900px;
  font-size: clamp(2.25rem, 5vw, 4.9rem);
  font-weight: 950;
}

h3 {
  font-size: clamp(1.28rem, 2vw, 2rem);
  font-weight: 900;
}

p {
  color: var(--muted);
  line-height: 1.7;
}

.hero-copy > p:not(.eyebrow) {
  max-width: 64ch;
  margin: 18px 0 0;
  font-size: clamp(1rem, 1.2vw, 1.12rem);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

.hero-system {
  min-height: clamp(360px, 40vw, 540px);
}

.system-orbit {
  position: relative;
  height: 100%;
  min-height: inherit;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background:
    radial-gradient(circle at center, rgba(0, 212, 255, 0.16), transparent 34%),
    linear-gradient(135deg, #ffffff, #eef5ff);
  box-shadow: var(--shadow);
  overflow: hidden;
  transform-style: preserve-3d;
  transition: transform 160ms ease;
}

.system-orbit::before {
  content: "";
  position: absolute;
  inset: 12%;
  border: 1px solid rgba(0, 87, 255, 0.14);
  border-radius: 50%;
  box-shadow: 0 0 0 70px rgba(0, 87, 255, 0.035);
}

.system-core {
  position: absolute;
  left: 50%;
  top: 50%;
  width: min(46%, 260px);
  aspect-ratio: 1;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: var(--navy);
  color: white;
  transform: translate(-50%, -50%);
  box-shadow: 0 30px 80px rgba(7, 17, 31, 0.22);
}

.system-core span,
.system-core strong {
  grid-area: 1 / 1;
}

.system-core span {
  translate: 0 -18px;
  color: var(--cyan);
  font-size: 0.82rem;
  font-weight: 900;
  letter-spacing: 0.18em;
}

.system-core strong {
  translate: 0 16px;
  font-size: clamp(1rem, 2vw, 1.45rem);
}

.node {
  position: absolute;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  padding: 0 16px;
  border: 1px solid rgba(0, 87, 255, 0.16);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.86);
  color: var(--ink);
  font-weight: 900;
  box-shadow: 0 14px 34px rgba(15, 28, 52, 0.1);
}

.node-robot {
  left: 11%;
  top: 24%;
}

.node-iot {
  right: 11%;
  top: 30%;
}

.node-ai {
  left: 50%;
  bottom: 15%;
  transform: translateX(-50%);
}

.signal-line {
  position: absolute;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--cyan), transparent);
}

.line-a {
  left: 20%;
  right: 18%;
  top: 42%;
}

.line-b {
  left: 28%;
  right: 22%;
  bottom: 32%;
}

.line-c {
  left: 18%;
  right: 26%;
  top: 58%;
}

.metric-strip {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-block: 1px solid var(--line);
}

.metric-strip div {
  min-height: 132px;
  padding: 26px;
  border-right: 1px solid var(--line);
}

.metric-strip div:last-child {
  border-right: 0;
}

.metric-strip span {
  display: block;
  margin-bottom: 18px;
  color: var(--blue);
  font-weight: 900;
}

.metric-strip strong {
  display: block;
  max-width: 26ch;
  font-size: 1.05rem;
  line-height: 1.42;
}

.section,
.contact-section {
  padding: clamp(78px, 11vw, 136px) 0;
}

.section-heading {
  display: grid;
  grid-template-columns: minmax(150px, 0.34fr) 1fr;
  gap: 34px;
  margin-bottom: 36px;
}

.about-layout,
.roi-layout {
  display: grid;
  grid-template-columns: 0.92fr 1.08fr;
  gap: clamp(28px, 5vw, 72px);
  align-items: start;
}

.about-copy {
  display: grid;
  gap: 16px;
}

.about-copy p {
  margin: 0;
  font-size: 1.05rem;
}

.trust-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.module-panel,
.stack-list article,
.platform-grid article,
.roi-calculator,
.roi-results,
.inquiry-form {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.82);
  box-shadow: var(--shadow);
  backdrop-filter: blur(16px);
}

.modules {
  display: grid;
  gap: 14px;
}

.module-panel {
  overflow: hidden;
  transition: border-color 180ms ease, box-shadow 180ms ease;
}

.module-panel.is-open {
  border-color: rgba(0, 87, 255, 0.28);
  box-shadow: 0 28px 80px rgba(0, 87, 255, 0.11);
}

.module-toggle {
  width: 100%;
  min-height: 92px;
  display: grid;
  grid-template-columns: 70px minmax(160px, 0.35fr) 1fr;
  gap: 20px;
  align-items: center;
  border: 0;
  background: rgba(255, 255, 255, 0.68);
  color: var(--ink);
  padding: 22px 24px;
  text-align: left;
  cursor: pointer;
}

.module-toggle span {
  color: var(--blue);
  font-weight: 950;
}

.module-toggle strong {
  font-size: 1.18rem;
  letter-spacing: -0.03em;
}

.module-toggle em {
  color: var(--muted);
  font-style: normal;
  line-height: 1.45;
}

.module-toggle::after {
  content: "+";
  justify-self: end;
  color: var(--blue);
  font-size: 1.35rem;
  font-weight: 800;
}

.module-panel.is-open .module-toggle::after {
  content: "−";
}

.module-content {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows 280ms ease;
}

.module-panel.is-open .module-content {
  grid-template-rows: 1fr;
}

.module-content > * {
  min-height: 0;
  overflow: hidden;
}

.module-split,
.platform-grid,
.roi-layout {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px;
  padding: 0 24px 24px;
}

.platform-grid {
  grid-template-columns: repeat(3, 1fr);
}

.module-column h3 {
  margin: 0 0 16px;
}

.stack-list {
  display: grid;
  gap: 12px;
}

.stack-list article,
.platform-grid article {
  padding: 22px;
  box-shadow: none;
}

.stack-list.compact article {
  min-height: auto;
}

.stack-list span,
.platform-grid span,
.process-timeline span {
  display: inline-flex;
  margin-bottom: 16px;
  color: var(--blue);
  font-size: 0.76rem;
  font-weight: 900;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.platform-visual {
  height: 150px;
  display: grid;
  place-items: center;
  margin-bottom: 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background:
    radial-gradient(circle at center, rgba(0, 212, 255, 0.13), transparent 42%),
    linear-gradient(135deg, #ffffff, #eef5ff);
}

.platform-visual span {
  width: 70px;
  height: 70px;
  display: grid;
  place-items: center;
  margin: 0;
  border-radius: 50%;
  background: var(--navy);
  color: var(--cyan);
  font-size: 1.5rem;
  letter-spacing: 0;
}

.roi-calculator,
.roi-results {
  display: grid;
  gap: 16px;
  padding: clamp(22px, 3vw, 34px);
}

.roi-calculator label {
  display: grid;
  gap: 8px;
  color: var(--ink);
  font-size: 0.9rem;
  font-weight: 800;
}

.roi-calculator input,
.roi-calculator select {
  min-height: 46px;
  width: 100%;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: white;
  color: var(--ink);
  padding: 0 14px;
  outline: none;
}

.roi-calculator input[type="range"] {
  padding: 0;
  accent-color: var(--blue);
}

.roi-calculator output {
  color: var(--blue);
  font-size: 0.9rem;
  font-weight: 900;
}

.roi-results p {
  margin: 0;
}

.roi-results div {
  padding: 18px 0;
  border-top: 1px solid var(--line);
}

.roi-results span {
  display: block;
  color: var(--muted);
  font-size: 0.9rem;
  font-weight: 750;
}

.roi-results strong {
  display: block;
  margin-top: 6px;
  color: var(--blue);
  font-size: clamp(1.55rem, 3vw, 2.35rem);
  letter-spacing: -0.04em;
}

.roi-results small {
  display: block;
  color: var(--muted);
  font-size: 0.82rem;
  line-height: 1.5;
}

.process-timeline {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--line);
}

.process-timeline article {
  min-height: 240px;
  padding: 28px;
  background: rgba(255, 255, 255, 0.82);
}

.security-copy {
  max-width: 920px;
  margin: 20px 24px 26px;
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.72);
  font-size: 1.02rem;
}

.contact-section {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: clamp(36px, 7vw, 90px);
  align-items: start;
}

.contact-copy p {
  max-width: 54ch;
}

.contact-links {
  display: grid;
  gap: 10px;
  margin-top: 26px;
  color: var(--blue);
  font-weight: 850;
}

.inquiry-form {
  display: grid;
  gap: 16px;
  padding: clamp(22px, 3vw, 34px);
}

.inquiry-form label {
  display: grid;
  gap: 8px;
  color: var(--ink);
  font-size: 0.9rem;
  font-weight: 800;
}

.inquiry-form input,
.inquiry-form select,
.inquiry-form textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: white;
  color: var(--ink);
  outline: none;
}

.inquiry-form input,
.inquiry-form select {
  min-height: 46px;
  padding: 0 14px;
}

.inquiry-form textarea {
  min-height: 132px;
  resize: vertical;
  padding: 12px 14px;
}

.inquiry-form input:focus,
.inquiry-form select:focus,
.inquiry-form textarea:focus {
  border-color: var(--blue);
  box-shadow: 0 0 0 4px rgba(0, 87, 255, 0.1);
}

.inquiry-form button {
  border: 0;
  cursor: pointer;
}

.modal-backdrop {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: grid;
  place-items: center;
  padding: 20px;
  background: rgba(7, 17, 31, 0.42);
  opacity: 0;
  pointer-events: none;
  transition: opacity 220ms ease;
}

.modal-backdrop.is-visible {
  opacity: 1;
  pointer-events: auto;
}

.review-modal {
  position: relative;
  width: min(620px, 100%);
  max-height: min(92vh, 760px);
  overflow: auto;
  padding: clamp(24px, 4vw, 38px);
  border: 1px solid var(--line);
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.96);
  box-shadow: 0 30px 100px rgba(7, 17, 31, 0.22);
  transform: translateY(14px) scale(0.98);
  transition: transform 220ms ease;
}

.modal-backdrop.is-visible .review-modal {
  transform: translateY(0) scale(1);
}

.modal-close {
  position: absolute;
  top: 14px;
  right: 14px;
  width: 38px;
  height: 38px;
  border: 1px solid var(--line);
  border-radius: 50%;
  background: white;
  color: var(--ink);
  cursor: pointer;
  font-size: 1.3rem;
}

.review-modal h2 {
  font-size: clamp(2rem, 5vw, 3.5rem);
}

.modal-form {
  display: grid;
  gap: 14px;
  margin-top: 22px;
}

.modal-form label {
  display: grid;
  gap: 8px;
  color: var(--ink);
  font-size: 0.9rem;
  font-weight: 800;
}

.modal-form input,
.modal-form select,
.modal-form textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: white;
  color: var(--ink);
  outline: none;
}

.modal-form input,
.modal-form select {
  min-height: 44px;
  padding: 0 12px;
}

.modal-form textarea {
  min-height: 96px;
  resize: vertical;
  padding: 12px;
}

.modal-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.modal-thanks {
  display: none;
  padding: 18px;
  border: 1px solid rgba(0, 87, 255, 0.16);
  border-radius: var(--radius);
  background: rgba(0, 87, 255, 0.06);
  color: var(--ink);
  font-weight: 800;
}

.review-modal.is-submitted .modal-form {
  display: none;
}

.review-modal.is-submitted .modal-thanks {
  display: block;
}

.site-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 32px 0 42px;
  border-top: 1px solid var(--line);
}

.site-footer p {
  max-width: 520px;
  margin: 0;
  text-align: right;
}

.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 620ms ease, transform 620ms ease;
}

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

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    transition: none !important;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }
}

@media (max-width: 980px) {
  .hero,
  .contact-section,
  .about-layout,
  .roi-layout,
  .section-heading {
    grid-template-columns: 1fr;
  }

  .metric-strip,
  .module-split,
  .platform-grid,
  .process-timeline {
    grid-template-columns: 1fr;
  }

  .metric-strip div,
  .metric-strip div:last-child {
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .hero {
    min-height: auto;
  }

  h1 {
    max-width: 12ch;
  }
}

@media (max-width: 760px) {
  .site-header {
    min-height: 68px;
    padding-inline: 14px;
  }

  .menu-toggle {
    width: 44px;
    height: 44px;
    display: grid;
    place-items: center;
    gap: 5px;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: white;
  }

  .menu-toggle span {
    width: 18px;
    height: 2px;
    background: var(--ink);
  }

  .main-nav {
    position: absolute;
    left: 14px;
    right: 14px;
    top: 76px;
    display: grid;
    gap: 4px;
    padding: 16px;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: rgba(255, 255, 255, 0.96);
    box-shadow: var(--shadow);
    opacity: 0;
    pointer-events: none;
    transform: translateY(-8px);
    transition: opacity 180ms ease, transform 180ms ease;
  }

  .main-nav.is-open {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
  }

  .nav-cta {
    width: 100%;
  }

  .hero,
  .built-for,
  .metric-strip,
  .section,
  .contact-section,
  .site-footer {
    width: min(100% - 28px, 1180px);
  }

  .hero-actions,
  .site-footer {
    align-items: stretch;
    flex-direction: column;
  }

  .button {
    width: 100%;
  }

  .module-toggle {
    grid-template-columns: 1fr;
    gap: 8px;
  }

  .module-toggle::after {
    justify-self: start;
  }

  .site-footer p {
    text-align: left;
  }
}