:root {
  color-scheme: dark;
  --bg: #10152B;
  --surface: #171D3A;
  --surface-2: #1E2547;
  --ink: #F3F1EA;
  --ink-dim: #A8AEC9;
  --green: #3FAE6E;
  --green-deep: #144734;
  --teal: #33D6B0;
  --gold: #F2CB5A;
  --line: rgba(243, 241, 234, 0.12);
  --line-strong: rgba(243, 241, 234, 0.22);
  --radius: 10px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  background: var(--bg);
  color: var(--ink);
  font-family: 'Inter', system-ui, sans-serif;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

body {
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 64px 64px;
  background-attachment: fixed;
  background-position: center top;
}

h1,
h2,
h3 {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.1;
}

.mono {
  font-family: 'JetBrains Mono', monospace;
  letter-spacing: 0.04em;
}

a {
  color: inherit;
}

.wrap {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 32px;
}

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

/* Focus visibility */
a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
  outline: 2px solid var(--teal);
  outline-offset: 3px;
}

/* ---------- Nav ---------- */
header {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(10px);
  background: rgba(16, 21, 43, 0.82);
  border-bottom: 1px solid var(--line);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 32px;
  max-width: 1120px;
  margin: 0 auto;
}

.logo {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  font-size: 1.05rem;
  display: flex;
  align-items: center;
  gap: 10px;
}

.logo .mark {
  width: 30px;
  height: 30px;
  border-radius: 7px;
  display: block;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
  font-size: 0.92rem;
  color: var(--ink-dim);
}

.nav-links a {
  text-decoration: none;
  transition: color .15s;
}

.nav-links a:hover {
  color: var(--ink);
}

.nav-cta {
  font-size: 0.85rem;
  padding: 9px 18px;
  border-radius: 6px;
  background: var(--ink);
  color: var(--bg);
  text-decoration: none;
  font-weight: 600;
  white-space: nowrap;
  transition: transform .15s, box-shadow .15s;
}

.nav-cta:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(63, 174, 110, 0.25);
}

.nav-toggle {
  display: none;
  /* shown at <=860px via media query */
  width: 42px;
  height: 42px;
  background: transparent;
  border: 1px solid var(--line-strong);
  border-radius: 8px;
  cursor: pointer;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 5px;
}

.nav-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  background: var(--ink);
  border-radius: 2px;
  transition: transform .2s, opacity .2s;
}

.nav-toggle[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}

.nav-toggle[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Mobile dropdown menu — hidden on desktop, revealed by the toggle on mobile */
.mobile-menu {
  display: none;
  flex-direction: column;
  gap: 4px;
  padding: 12px 32px 20px;
  border-bottom: 1px solid var(--line);
  background: rgba(16, 21, 43, 0.96);
}

.mobile-menu a {
  text-decoration: none;
  color: var(--ink-dim);
  font-size: 1rem;
  padding: 12px 4px;
  border-bottom: 1px solid var(--line);
}

.mobile-menu a:last-child {
  border-bottom: none;
  margin-top: 8px;
  justify-content: center;
}

/* Skip link — visible only on keyboard focus */
.skip-link {
  position: absolute;
  left: 16px;
  top: -60px;
  z-index: 100;
  background: var(--green);
  color: #10152B;
  font-weight: 600;
  padding: 10px 16px;
  border-radius: 6px;
  text-decoration: none;
  transition: top .18s;
}

.skip-link:focus {
  top: 16px;
}

/* ---------- Hero ---------- */
.hero {
  padding: 96px 0 80px;
  position: relative;
  overflow: hidden;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 48px;
  align-items: center;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.78rem;
  color: var(--gold);
  text-transform: uppercase;
  margin-bottom: 22px;
}

.eyebrow::before {
  content: "";
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--gold);
  box-shadow: 0 0 0 4px rgba(242, 203, 90, 0.22);
}

.hero h1 {
  font-size: clamp(2.3rem, 4.6vw, 3.6rem);
  color: var(--ink);
  margin-bottom: 22px;
}

.hero h1 em {
  font-style: normal;
  background: linear-gradient(90deg, var(--green), var(--teal));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero p {
  font-size: 1.08rem;
  color: var(--ink-dim);
  max-width: 520px;
  margin-bottom: 34px;
}

.hero-ctas {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

.btn {
  font-family: 'Inter', sans-serif;
  font-weight: 600;
  font-size: 0.95rem;
  padding: 14px 26px;
  border-radius: 7px;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform .15s, box-shadow .15s, background .15s;
}

.btn-primary {
  background: var(--green);
  color: #10152B;
}

.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 10px 26px rgba(63, 174, 110, 0.28);
}

.btn-ghost {
  background: transparent;
  border-color: var(--line-strong);
  color: var(--ink);
}

.btn-ghost:hover {
  border-color: var(--teal);
  color: var(--teal);
}

/* Signature: node graph */
.node-graph {
  position: relative;
  aspect-ratio: 1 / 1;
  max-width: 420px;
  margin: 0 auto;
}

.node-graph svg {
  width: 100%;
  height: 100%;
}

.node-graph .path {
  fill: none;
  stroke: var(--line-strong);
  stroke-width: 1.5;
  stroke-dasharray: 6 6;
}

.node-graph .path.live {
  stroke: var(--teal);
  stroke-dasharray: 240;
  stroke-dashoffset: 240;
  animation: draw 2.4s ease forwards;
}

.node-graph .path.live.green {
  stroke: var(--green);
}

.node-graph .node-label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  fill: var(--ink-dim);
}

.node-graph .node-circle {
  fill: var(--surface-2);
  stroke: var(--line-strong);
  stroke-width: 1.5;
}

.node-graph .node-circle.center {
  fill: var(--ink);
  stroke: none;
}

.node-graph .node-core-label {
  font-family: 'JetBrains Mono', monospace;
  font-weight: 500;
  font-size: 12px;
  fill: var(--bg);
}

@keyframes draw {
  to {
    stroke-dashoffset: 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  .node-graph .path.live {
    animation: none;
    stroke-dashoffset: 0;
  }

  html {
    scroll-behavior: auto;
  }
}

/* ---------- Section shared ---------- */
section {
  padding: 88px 0;
}

.section-head {
  max-width: 600px;
  margin-bottom: 56px;
}

.section-head .eyebrow {
  margin-bottom: 14px;
}

.section-head h2 {
  font-size: clamp(1.8rem, 3vw, 2.4rem);
  margin-bottom: 14px;
}

.section-head p {
  color: var(--ink-dim);
  font-size: 1.02rem;
}

/* ---------- Services ---------- */
.services {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(23, 29, 58, 0.4), transparent);
}

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

.service-card {
  background: var(--surface);
  padding: 34px 28px;
}

.service-card .icon {
  width: 42px;
  height: 42px;
  border-radius: 8px;
  background: var(--surface-2);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 22px;
}

.service-card h3 {
  font-size: 1.15rem;
  color: var(--ink);
  margin-bottom: 10px;
}

.service-card p {
  color: var(--ink-dim);
  font-size: 0.94rem;
  margin-bottom: 16px;
}

.service-card .tag {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.72rem;
  color: var(--teal);
  display: inline-block;
  padding: 4px 9px;
  border: 1px solid rgba(51, 214, 176, 0.3);
  border-radius: 5px;
}

/* ---------- Full capabilities ---------- */
.capabilities {
  margin-top: 40px;
}

.capabilities .cap-label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-dim);
  margin-bottom: 18px;
}

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

.cap-item {
  background: var(--surface);
  padding: 18px 20px;
}

.cap-item .cap-num {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.7rem;
  color: var(--teal);
  display: block;
  margin-bottom: 8px;
}

.cap-item h4 {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.98rem;
  color: var(--ink);
  margin-bottom: 5px;
  letter-spacing: -0.01em;
}

.cap-item p {
  color: var(--ink-dim);
  font-size: 0.85rem;
  line-height: 1.5;
}

/* ---------- Tech / trust strip ---------- */
.stack {
  background: var(--surface);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.stack-grid {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 48px;
  align-items: center;
}

.stack-intro h2 {
  font-size: clamp(1.6rem, 2.6vw, 2.1rem);
  margin-bottom: 14px;
}

.stack-intro p {
  color: var(--ink-dim);
  font-size: 0.98rem;
  max-width: 380px;
}

.badge-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.badge {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.8rem;
  color: var(--ink);
  background: var(--surface-2);
  border: 1px solid var(--line-strong);
  border-radius: 6px;
  padding: 9px 14px;
  white-space: nowrap;
}

.badge .b-cat {
  color: var(--ink-dim);
  font-size: 0.68rem;
  display: block;
  margin-bottom: 2px;
  letter-spacing: 0.06em;
}

/* ---------- Contact NAP / secondary CTAs ---------- */
.contact-direct {
  margin-top: 30px;
  padding-top: 26px;
  border-top: 1px solid var(--line);
}

.contact-direct .cd-label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-dim);
  margin-bottom: 14px;
}

.contact-direct a {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  color: var(--ink);
  text-decoration: none;
  font-size: 0.95rem;
  margin-bottom: 12px;
}

.contact-direct a:hover {
  color: var(--teal);
}

.contact-direct a svg {
  stroke: var(--teal);
  flex-shrink: 0;
}

.contact-direct .cd-list {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

/* Inline form validation */
.field-error {
  display: none;
  color: var(--green);
  font-size: 0.76rem;
  margin-top: 6px;
  font-family: 'Inter', sans-serif;
}

.form-row.invalid .field-error {
  display: block;
}

.form-row.invalid input,
.form-row.invalid select,
.form-row.invalid textarea {
  border-color: var(--green);
}

/* ---------- Process ---------- */
.process-list {
  display: grid;
  gap: 0;
  border-top: 1px solid var(--line);
}

.process-item {
  display: grid;
  grid-template-columns: 90px 1fr;
  gap: 24px;
  padding: 28px 0;
  border-bottom: 1px solid var(--line);
}

.process-item .stage {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.78rem;
  color: var(--gold);
  padding-top: 3px;
}

.process-item h3 {
  font-size: 1.15rem;
  color: var(--ink);
  margin-bottom: 6px;
}

.process-item p {
  color: var(--ink-dim);
  font-size: 0.95rem;
  max-width: 640px;
}

/* ---------- Why / approach strip ---------- */
.why {
  background: var(--surface);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.why-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 36px;
}

.why-item .num {
  font-family: 'JetBrains Mono', monospace;
  color: var(--gold);
  font-size: 0.85rem;
  margin-bottom: 10px;
  display: block;
}

.why-item h3 {
  font-size: 1.05rem;
  margin-bottom: 8px;
}

.why-item p {
  color: var(--ink-dim);
  font-size: 0.92rem;
}

/* ---------- Contact / Request form ---------- */
.contact {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 64px;
}

.contact-intro h2 {
  font-size: clamp(1.8rem, 3vw, 2.4rem);
  margin-bottom: 16px;
}

.contact-intro p {
  color: var(--ink-dim);
  margin-bottom: 28px;
  max-width: 420px;
}

.contact-point {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  margin-bottom: 18px;
}

.contact-point .dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--green);
  margin-top: 7px;
  flex-shrink: 0;
}

.contact-point p {
  color: var(--ink-dim);
  font-size: 0.92rem;
  margin: 0;
}

form {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 36px;
}

.form-row {
  margin-bottom: 20px;
}

.form-row-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

label {
  display: block;
  font-size: 0.82rem;
  color: var(--ink-dim);
  margin-bottom: 7px;
  font-family: 'JetBrains Mono', monospace;
}

input,
select,
textarea {
  width: 100%;
  background: var(--surface-2);
  border: 1px solid var(--line-strong);
  color: var(--ink);
  font-family: 'Inter', sans-serif;
  font-size: 0.95rem;
  padding: 12px 14px;
  border-radius: 6px;
  transition: border-color .15s;
}

input:focus,
select:focus,
textarea:focus {
  border-color: var(--teal);
}

textarea {
  resize: vertical;
  min-height: 110px;
}

select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%23A8AEC9' stroke-width='1.5' fill='none' fill-rule='evenodd'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  padding-right: 36px;
}

.submit-btn {
  width: 100%;
  justify-content: center;
  margin-top: 6px;
}

.form-note {
  font-size: 0.78rem;
  color: var(--ink-dim);
  margin-top: 14px;
  text-align: center;
}

.form-legend {
  font-size: 0.78rem;
  color: var(--ink-dim);
  margin: 0 0 20px;
}

.required-marker {
  color: var(--gold);
  margin-left: 2px;
}

.form-success {
  display: none;
  text-align: center;
  padding: 20px 0;
}

.form-success.show {
  display: block;
}

.form-success .check {
  width: 46px;
  height: 46px;
  border-radius: 50%;
  background: rgba(51, 214, 176, 0.14);
  border: 1px solid var(--teal);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 16px;
}

.form-success h3 {
  color: var(--ink);
  margin-bottom: 8px;
}

.form-success p {
  color: var(--ink-dim);
  font-size: 0.92rem;
}

form.submitted .form-fields {
  display: none;
}

.hp-field {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

/* ---------- Footer ---------- */
footer {
  border-top: 1px solid var(--line);
  padding: 36px 0;
}

.footer-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}

footer .mono {
  font-size: 0.78rem;
  color: var(--ink-dim);
}

/* ---------- Responsive ---------- */
@media (max-width: 860px) {
  .nav-links {
    display: none;
  }

  .nav-cta {
    display: none;
    /* moved into the mobile dropdown menu */
  }

  .nav-toggle {
    display: inline-flex;
  }

  .mobile-menu.open {
    display: flex;
  }

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

  .node-graph {
    max-width: 300px;
    margin-top: 20px;
  }

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

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

  .stack-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .why-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .contact {
    grid-template-columns: 1fr;
    gap: 36px;
  }

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

  section {
    padding: 64px 0;
  }

  .hero {
    padding: 56px 0 48px;
  }
}