/* =================================================================
   DESIGN TOKENS
   Color: ink navy bg, slate panels, steel borders, teal signal accent,
   amber secondary signal (CI/CD pass/pending vocabulary)
   Type: Space Grotesk (display) / Inter (body) / JetBrains Mono (utility)
================================================================= */

/* #153457 #0B1220 #172d45 #0e1d2e*/
:root {
  --bg:        #0e1d2e;
  --bg-soft:   #0E1626;
  --panel:     #141B2E;
  --panel-2:   #182238;
  --border:    #2A3650;
  --border-soft: #1E2840;
  --text:      #EDEFF4;
  --text-dim:  #A7B0C4;
  --text-faint:#6C7790;
  --teal:      #4FD1C5;
  --teal-dim:  #2C7A72;
  --amber:     #E8B86D;
  --amber-dim: #8A6A3C;

  --font-display: 'Space Grotesk', sans-serif;
  --font-body: 'Inter', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;

  --container: 1180px;
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
}

a { color: inherit; text-decoration: none; }
ul { list-style: none; }
button { font-family: inherit; cursor: pointer; }

:focus-visible {
  outline: 2px solid var(--teal);
  outline-offset: 3px;
  border-radius: 3px;
}

h1, h2, h3 {
  font-family: var(--font-display);
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--text);
}

.bg-grid {
  position: fixed;
  inset: 0;
  z-index: -1;
  background-image:
    linear-gradient(var(--border-soft) 1px, transparent 1px),
    linear-gradient(90deg, var(--border-soft) 1px, transparent 1px);
  background-size: 64px 64px;
  opacity: 0.35;
  mask-image: radial-gradient(ellipse 80% 50% at 50% 0%, black 40%, transparent 90%);
}

/* =================================================================
   SHARED PRIMITIVES
================================================================= */
.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  color: var(--text-dim);
  display: flex;
  align-items: center;
  gap: 0.6rem;
  margin-bottom: 1.1rem;
  text-transform: lowercase;
}

.status-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  padding: 0.28rem 0.6rem;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--panel);
  white-space: nowrap;
  line-height: 1;
}
.status-chip--ok { color: var(--teal); border-color: var(--teal-dim); }
.status-chip--amber { color: var(--amber); border-color: var(--amber-dim); }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.9rem;
  font-weight: 500;
  padding: 0.85rem 1.5rem;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  transition: transform 0.15s ease, background 0.2s ease, border-color 0.2s ease;
}
.btn:hover { transform: translateY(-1px); }
.btn--primary {
  background: var(--teal);
  color: #06201D;
}
.btn--primary:hover { background: #6BE0D4; }
.btn--ghost {
  background: transparent;
  border-color: var(--border);
  color: var(--text);
}
.btn--ghost:hover { border-color: var(--teal-dim); color: var(--teal); }
.btn--wide { width: 100%; padding: 1rem; font-size: 0.95rem; }

.section-head {
  max-width: 680px;
  margin: 0 auto 3.5rem;
  padding: 0 1.5rem;
  text-align: left;
}
.section-head h2 {
  font-size: clamp(1.9rem, 3.6vw, 2.6rem);
  line-height: 1.18;
  margin-bottom: 1rem;
}
.section-sub {
  color: var(--text-dim);
  font-size: 1.02rem;
  max-width: 540px;
}
.section-head--light .section-sub { color: var(--text-dim); }

/* =================================================================
   NAV
================================================================= */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(11, 18, 32, 0.82);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border-soft);
}
.nav-inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 1.1rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.brand {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 3.05rem;
}
.brand-mark { color: var(--teal); }
.brand-dot { color: var(--text-faint); font-weight: 400; }

.nav-links {
  display: flex;
  align-items: center;
  gap: 2rem;
  font-size: 0.92rem;
  color: var(--text-dim);
}
.nav-links a:hover { color: var(--text); }
.nav-cta {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--teal) !important;
  border: 1px solid var(--teal-dim);
  padding: 0.5rem 1rem;
  border-radius: var(--radius-sm);
}
.nav-cta:hover { background: rgba(79, 209, 197, 0.08); }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 4px;
  background: none;
  border: none;
  padding: 0.4rem;
}
.nav-toggle span {
  width: 22px;
  height: 2px;
  background: var(--text);
  display: block;
  transition: transform 0.2s ease, opacity 0.2s ease;
}

.nav-links--mobile {
  display: none;
  flex-direction: column;
  align-items: flex-start;
  gap: 1.2rem;
  padding: 0 1.5rem 1.5rem;
}

/* =================================================================
   HERO
================================================================= */
.hero {
  max-width: var(--container);
  margin: 0 auto;
  padding: 5rem 1.5rem 6rem;
}
.hero-inner {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 3.5rem;
  align-items: center;
}
.hero-title {
  font-size: clamp(1.4rem, 5vw, 2.6rem);
  line-height: 1.08;
  margin-bottom: 1.5rem;
}
.hero-emph { color: var(--teal); }
.hero-sub {
  color: var(--text-dim);
  font-size: 1.08rem;
  max-width: 500px;
  margin-bottom: 2.2rem;
}
.hero-actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 3rem;
}
.hero-meta {
  display: flex;
  gap: 2.5rem;
  flex-wrap: wrap;
}
.hero-meta-item { display: flex; flex-direction: column; }
.meta-num {
  font-family: var(--font-mono);
  font-size: 1.4rem;
  color: var(--teal);
}
.meta-label {
  font-size: 0.82rem;
  color: var(--text-faint);
  margin-top: 0.2rem;
}

/* --- hero visual: terminal --- */
.hero-visual {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}
.terminal {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: 0 20px 60px -20px rgba(0,0,0,0.5);
}
.terminal-head {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.7rem 0.9rem;
  background: var(--panel-2);
  border-bottom: 1px solid var(--border);
}
.dot { width: 9px; height: 9px; border-radius: 50%; }
.dot--r { background: #E5717A; }
.dot--y { background: var(--amber); }
.dot--g { background: var(--teal); }
.terminal-title {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-faint);
  margin-left: 0.4rem;
}
.terminal-body {
  padding: 1.1rem 1rem;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  line-height: 1.85;
  min-height: 190px;
}
.term-line { opacity: 0; white-space: pre-wrap; word-break: break-word; }
.term-line.show { opacity: 1; }
.term-prompt { color: var(--teal); }
.term-dim { color: var(--text-faint); }
.term-ok { color: var(--teal); }
.term-amber { color: var(--amber); }
.cursor {
  display: inline-block;
  width: 7px; height: 14px;
  background: var(--teal);
  vertical-align: middle;
  animation: blink 1s steps(1) infinite;
}
@keyframes blink { 50% { opacity: 0; } }

/* --- hero visual: dag --- */
.dag {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 1.2rem 0.5rem;
}
.dag-svg { width: 100%; height: auto; overflow: visible; }
.dag-edge {
  fill: none;
  stroke: var(--border);
  stroke-width: 2;
  transition: stroke 0.4s ease;
}
.dag-edge.active { stroke: var(--teal); }
.dag-node circle {
  fill: var(--panel-2);
  stroke: var(--border);
  stroke-width: 1.5;
  transition: stroke 0.4s ease, fill 0.4s ease;
}
.dag-node.active circle { stroke: var(--teal); fill: rgba(79,209,197,0.12); }
.dag-node text {
  fill: var(--text-dim);
  font-family: var(--font-mono);
  font-size: 11px;
  transition: fill 0.4s ease;
}
.dag-node.active text { fill: var(--teal); }

/* =================================================================
   TRUST STRIP
================================================================= */
.trust-strip {
  max-width: var(--container);
  margin: 0 auto;
  padding: 1.5rem 1.5rem 4rem;
  border-top: 1px solid var(--border-soft);
  text-align: center;
}
.trust-label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-faint);
  margin-bottom: 1.4rem;
}
.trust-row {
  display: flex;
  justify-content: center;
  gap: 2.8rem;
  flex-wrap: wrap;
  font-family: var(--font-display);
  font-weight: 500;
  color: var(--text-faint);
  font-size: 1.05rem;
}

/* =================================================================
   SERVICES
================================================================= */
.services {
  max-width: var(--container);
  margin: 0 auto;
  padding: 4rem 1.5rem 6rem;
}
.pipeline-rail {
  height: 2px;
  background: var(--border-soft);
  max-width: var(--container);
  margin: 0 1.5rem 3rem;
  position: relative;
  display: none;
}
.service-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
}
.service-card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.8rem;
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
  transition: border-color 0.25s ease, transform 0.25s ease;
}
.service-card:hover {
  border-color: var(--teal-dim);
  transform: translateY(-3px);
}
.service-card--stack {
  background: linear-gradient(160deg, var(--panel) 0%, var(--panel-2) 100%);
  border-color: var(--border);
}
.service-card-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
}
.stage-tag {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-faint);
  letter-spacing: 0.02em;
}
.service-card h3 {
  font-size: 1.25rem;
}
.service-card p {
  color: var(--text-dim);
  font-size: 0.94rem;
}
.service-list {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  margin-top: 0.3rem;
}
.service-list li {
  font-size: 0.85rem;
  color: var(--text-dim);
  padding-left: 1.1rem;
  position: relative;
}
.service-list li::before {
  content: '→';
  position: absolute;
  left: 0;
  color: var(--teal-dim);
}

/* =================================================================
   STACK / ARCHITECTURE DIAGRAM
================================================================= */
.stack {
  max-width: var(--container);
  margin: 0 auto;
  padding: 5rem 1.5rem 5rem;
  border-top: 1px solid var(--border-soft);
}
.arch-diagram {
  display: flex;
  align-items: stretch;
  gap: 0.5rem;
  overflow-x: auto;
  padding-bottom: 0.5rem;
}
.arch-col {
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
  min-width: 190px;
  flex: 1;
}
.arch-col-label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-faint);
  margin-bottom: 0.2rem;
}
.arch-node {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0.85rem 1rem;
  font-size: 0.88rem;
  color: var(--text-dim);
}
.arch-node--accent {
  border-color: var(--teal-dim);
  color: var(--teal);
}
.arch-arrow {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-width: 56px;
  gap: 0.3rem;
}
.arch-arrow svg {
  width: 44px; height: 18px;
  stroke: var(--border);
  stroke-width: 2;
  fill: none;
}
.arch-arrow-label {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--text-faint);
}
.arch-foundation {
  margin-top: 2.5rem;
  padding-top: 2rem;
  border-top: 1px dashed var(--border);
  display: flex;
  align-items: center;
  gap: 1.2rem;
  flex-wrap: wrap;
}
.arch-foundation-label {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-faint);
}
.arch-foundation-items {
  display: flex;
  gap: 0.6rem;
  flex-wrap: wrap;
}
.foundation-pill {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-dim);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 0.35rem 0.8rem;
}

/* =================================================================
   WORKFLOW / COMMIT FLOW
================================================================= */
.workflow {
  max-width: var(--container);
  margin: 0 auto;
  padding: 5rem 1.5rem 6rem;
  border-top: 1px solid var(--border-soft);
}
.commit-flow {
  position: relative;
}
.commit-track {
  display: flex;
  flex-direction: column;
  gap: 0;
  position: relative;
  padding-left: 2rem;
}
.commit-track::before {
  content: '';
  position: absolute;
  left: 7px;
  top: 10px;
  bottom: 10px;
  width: 2px;
  background: var(--border);
}
.commit-step {
  position: relative;
  padding: 1.1rem 0;
  display: flex;
  align-items: flex-start;
  gap: 1.2rem;
}
.commit-node {
  position: absolute;
  left: -2rem;
  top: 1.4rem;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--panel);
  border: 2px solid var(--teal-dim);
}
.commit-card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 1.1rem 1.4rem;
  width: 100%;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.9rem;
}
.commit-hash {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--teal);
  background: rgba(79,209,197,0.08);
  padding: 0.2rem 0.55rem;
  border-radius: 4px;
}
.commit-msg {
  font-size: 0.94rem;
  color: var(--text);
  flex: 1;
  min-width: 200px;
}
.commit-meta {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  color: var(--text-faint);
}

/* =================================================================
   APPROACH
================================================================= */
.approach {
  max-width: var(--container);
  margin: 0 auto;
  padding: 5rem 1.5rem 6rem;
  border-top: 1px solid var(--border-soft);
}
.approach-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}
.approach-item {
  border-top: 2px solid var(--border);
  padding-top: 1.2rem;
}
.approach-num {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  color: var(--teal);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.approach-item h3 {
  font-size: 1.08rem;
  margin: 0.7rem 0 0.6rem;
}
.approach-item p {
  font-size: 0.9rem;
  color: var(--text-dim);
}

/* =================================================================
   CTA / CONTACT
================================================================= */
.cta-section {
  max-width: var(--container);
  margin: 0 auto;
  padding: 5rem 1.5rem 6rem;
  border-top: 1px solid var(--border-soft);
}
.cta-inner {
  max-width: 640px;
}
.cta-section h2 {
  font-size: clamp(1.9rem, 3.6vw, 2.5rem);
  line-height: 1.18;
  margin-bottom: 1rem;
}
.cta-section .section-sub { margin-bottom: 2.5rem; }

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 1.1rem;
}
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.1rem;
}
.form-field {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
}
.form-field label {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-dim);
}
.form-field input,
.form-field select,
.form-field textarea {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0.75rem 0.9rem;
  color: var(--text);
  font-family: var(--font-body);
  font-size: 0.95rem;
  transition: border-color 0.2s ease;
}
.form-field input:focus,
.form-field select:focus,
.form-field textarea:focus {
  border-color: var(--teal-dim);
  outline: none;
}
.form-field textarea { resize: vertical; }
.form-note {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-faint);
  text-align: center;
}

/* =================================================================
   FOOTER
================================================================= */
.footer {
  max-width: var(--container);
  margin: 0 auto;
  padding: 2.5rem 1.5rem 1.2rem;
  border-top: 1px solid var(--border-soft);
}
.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1.5rem;
  margin-bottom: 1.5rem;
}
.footer-brand {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-display);
  font-weight: 600;
}
.footer-links {
  display: flex;
  gap: 1.6rem;
  font-size: 0.88rem;
  color: var(--text-dim);
}
.footer-links a:hover { color: var(--teal); }
.footer-copy {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  color: var(--text-faint);
  text-align: center;
}

/* =================================================================
   RESPONSIVE
================================================================= */
@media (max-width: 980px) {
  .hero-inner { grid-template-columns: 1fr; }
  .hero-visual { order: -1; }
  .service-grid { grid-template-columns: repeat(2, 1fr); }
  .approach-grid { grid-template-columns: repeat(2, 1fr); }
  .arch-diagram { flex-wrap: wrap; }
  .arch-arrow { display: none; }
  .arch-col { min-width: 45%; }
}

@media (max-width: 720px) {
  .nav-links { display: none; }
  .nav-toggle { display: flex; }
  .nav-links--mobile.open { display: flex; }

  .hero { padding: 2.5rem 1.25rem 3.5rem; }
  .hero-title { font-size: 2.1rem; }
  .hero-meta { gap: 1.6rem; }

  .trust-row { gap: 1.5rem; font-size: 0.92rem; }

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

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

  .footer-inner { flex-direction: column; align-items: flex-start; }

  section { padding-left: 1.25rem; padding-right: 1.25rem; }
}