/* System follows the device. Explicit Light and Dark choices override it. */
:root {
  color-scheme: light;
  --background: #f5f8f3;
  --surface: #ffffff;
  --surface-soft: #eaf0e7;
  --ink: #19271d;
  --muted: #526454;
  --border: #ced9cc;
  --accent: #315c24;
  --accent-ink: #ffffff;
  --accent-soft: #e1efcf;
  --grid: #dce5d8;
  --terminal: #f8fbf5;
  --shadow: 0 18px 55px #20321d0b;
  --font: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    color-scheme: dark;
    --background: #0f1412;
    --surface: #19221c;
    --surface-soft: #1d2a20;
    --ink: #f0f5eb;
    --muted: #acbaae;
    --border: #344438;
    --accent: #c7f686;
    --accent-ink: #16210e;
    --accent-soft: #263a20;
    --grid: #25332a;
    --terminal: #151e18;
    --shadow: 0 18px 55px #00000026;
  }
}
:root[data-theme="dark"] {
    color-scheme: dark;
    --background: #0f1412;
    --surface: #19221c;
    --surface-soft: #1d2a20;
    --ink: #f0f5eb;
    --muted: #acbaae;
    --border: #344438;
    --accent: #c7f686;
    --accent-ink: #16210e;
    --accent-soft: #263a20;
    --grid: #25332a;
    --terminal: #151e18;
    --shadow: 0 18px 55px #00000026;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 28px; }
body { margin: 0; min-width: 320px; background: var(--background); color: var(--ink); font: 16px/1.65 var(--font); -webkit-font-smoothing: antialiased; }
body, h1, h2, h3, p { overflow-wrap: break-word; }
h1, h2, h3, p { margin: 0; }
h1, h2, h3 { line-height: 1.12; letter-spacing: -.045em; }
h1 { font-size: clamp(2.6rem, 5.7vw, 5.25rem); font-weight: 680; }
h2 { font-size: clamp(1.75rem, 3vw, 2.6rem); font-weight: 630; }
h3 { font-size: 1.2rem; font-weight: 620; }
p { color: var(--muted); }
a { color: inherit; text-underline-offset: 5px; }
a:hover { text-decoration-thickness: 2px; }
button, input, textarea { font: inherit; }
button, a, summary { -webkit-tap-highlight-color: transparent; }
button { cursor: pointer; }
:focus-visible { outline: 3px solid var(--accent); outline-offset: 5px; }
::selection { color: var(--accent-ink); background: var(--accent); }
.container { width: min(1180px, calc(100% - 80px)); margin-inline: auto; }
.skip-link { position: absolute; top: -80px; left: 20px; z-index: 10; background: var(--accent); color: var(--accent-ink); padding: 12px 20px; border-radius: 8px; }
.skip-link:focus { top: 16px; }
.site-header { border-bottom: 1px solid var(--border); }
.header-inner { min-height: 105px; display: grid; grid-template-columns: auto minmax(0, 1fr) auto; align-items: center; gap: 24px; }
.header-inner > .brand-link { grid-column: 1; grid-row: 1; }
.header-inner > .desktop-nav { grid-column: 2; grid-row: 1; justify-content: end; }
.brand-link { display: inline-flex; align-items: center; flex-shrink: 0; text-decoration: none; }
.brand { display: block; width: 172px; height: 45px; background: var(--ink); -webkit-mask: url('logo-mask.svg') center / contain no-repeat; mask: url('logo-mask.svg') center / contain no-repeat; }
.desktop-nav { display: flex; align-items: center; gap: 22px; }
.desktop-nav a { font-size: .875rem; color: var(--muted); text-decoration: none; padding-block: 10px; position: relative; }
.desktop-nav a:hover, .desktop-nav a[aria-current='page'] { color: var(--ink); }
.desktop-nav a[aria-current='page']::after { content: ''; height: 3px; width: 18px; border-radius: 2px; background: var(--accent); position: absolute; bottom: 1px; left: 0; }
.desktop-nav .nav-contact { border: 1px solid var(--border); border-radius: 30px; padding: 9px 18px; color: var(--ink); }
.desktop-nav .nav-contact[aria-current='page']::after { display: none; }
.mobile-nav { display: none; position: relative; }
.mobile-nav summary { list-style: none; cursor: pointer; border: 1px solid var(--border); border-radius: 24px; padding: 9px 15px; font-size: .875rem; }
.mobile-nav summary::-webkit-details-marker { display: none; }
.mobile-nav summary::after { content: ' +'; padding-left: 8px; color: var(--accent); }
.mobile-nav[open] summary::after { content: ' −'; }
.mobile-menu { position: absolute; right: 0; top: calc(100% + 12px); z-index: 5; width: 225px; background: var(--surface); padding: 12px; border: 1px solid var(--border); border-radius: 16px; box-shadow: var(--shadow); display: grid; }
.mobile-menu a { padding: 12px; border-radius: 8px; text-decoration: none; }
.mobile-menu a[aria-current='page'] { color: var(--accent); background: var(--accent-soft); }
.theme-selector { display: inline-flex; align-items: center; justify-self: end; padding: 4px; gap: 2px; background: var(--surface); border: 1px solid var(--border); border-radius: 28px; }
.header-controls { grid-column: 3; grid-row: 1; display: flex; flex-wrap: wrap; justify-content: end; align-items: center; gap: 10px; }
.language-selector { display: inline-flex; padding: 4px; gap: 2px; background: var(--surface); border: 1px solid var(--border); border-radius: 28px; }
.language-selector button { border: 0; background: transparent; color: var(--muted); font-size: .75rem; font-weight: 600; min-width: 36px; min-height: 40px; padding: 8px; border-radius: 24px; }
.language-selector button:hover { color: var(--ink); }
.language-selector button[aria-pressed='true'] { color: var(--accent-ink); background: var(--accent); }
.theme-selector[hidden], .language-selector[hidden] { display: none; }
.theme-selector button { border: 0; background: transparent; color: var(--muted); font-size: .75rem; font-weight: 600; padding: 9px 12px; min-height: 40px; border-radius: 24px; }
.theme-selector button:hover { color: var(--ink); }
.theme-selector button[aria-pressed='true'] { color: var(--accent-ink); background: var(--accent); }
@media (max-width: 1100px) {
  .header-inner { grid-template-columns: 1fr auto; padding-block: 20px 16px; gap: 14px 24px; }
  .header-inner > .desktop-nav { grid-column: 1 / -1; grid-row: 2; justify-content: start; }
  .header-controls { grid-column: 2; }
}
.eyebrow { display: block; font: 600 .7rem/1.5 var(--font); letter-spacing: .17em; text-transform: uppercase; color: var(--muted); }
.hero { display: grid; grid-template-columns: 1.13fr 1fr; gap: 70px; align-items: center; padding-block: 92px 90px; }
.hero-copy { display: grid; justify-items: start; gap: 28px; }
.hero-copy h1 span { color: var(--accent); }
.hero-copy p { max-width: 450px; font-size: 1.04rem; }
.actions { display: flex; align-items: center; flex-wrap: wrap; gap: 24px; }
.button { display: inline-flex; align-items: center; justify-content: center; gap: 20px; padding: 13px 23px; border-radius: 30px; background: var(--accent); color: var(--accent-ink); border: 1px solid transparent; font-size: .875rem; font-weight: 650; text-decoration: none; min-height: 48px; }
.button:hover { filter: brightness(.94); text-decoration: none; }
.button.secondary { background: transparent; color: var(--ink); border-color: var(--border); }
.text-link { display: inline-flex; align-items: center; gap: 12px; font-size: .9rem; font-weight: 550; text-decoration: none; }
.text-link:hover { text-decoration: underline; }
.icon { width: 23px; height: 23px; flex-shrink: 0; color: var(--accent); fill: none; stroke: currentColor; stroke-width: 1.65; stroke-linecap: round; stroke-linejoin: round; }
.button .icon { color: inherit; width: 17px; height: 17px; }
.engineering-art { min-width: 0; min-height: 370px; border: 1px solid var(--border); border-radius: 18px; padding: 35px; background-color: var(--background); background-image: linear-gradient(var(--grid) 1px, transparent 1px), linear-gradient(90deg, var(--grid) 1px, transparent 1px); background-size: 30px 30px; display: grid; align-content: center; position: relative; }
.art-label { font: .67rem/1.6 ui-monospace, SFMono-Regular, Consolas, monospace; color: var(--muted); letter-spacing: .12em; text-transform: uppercase; margin-bottom: 17px; }
.terminal { padding: 22px 25px 25px; background: var(--terminal); border: 1px solid var(--border); border-radius: 12px; box-shadow: 10px 12px 0 color-mix(in srgb, var(--ink) 8%, var(--background)); font: .8rem/2.25 ui-monospace, SFMono-Regular, Consolas, monospace; }
.terminal-top { display: flex; align-items: center; gap: 6px; padding-bottom: 15px; margin-bottom: 15px; border-bottom: 1px solid var(--border); }
.terminal-top span { width: 6px; height: 6px; background: var(--muted); opacity: .7; border-radius: 50%; }
.terminal-top small { margin-left: auto; color: var(--muted); font-size: .65rem; }
.terminal-line { white-space: nowrap; color: var(--muted); }
.terminal-line strong { color: var(--accent); font-weight: 500; }
.section { padding-block: 64px; border-top: 1px solid var(--border); }
.section-heading { display: flex; justify-content: space-between; align-items: end; gap: 30px; margin-bottom: 32px; }
.section-heading > div { display: grid; gap: 10px; }
.section-heading > p { max-width: 390px; }
.card-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.capability-card { background: var(--surface); border: 1px solid var(--border); border-radius: 14px; padding: 30px; display: flex; flex-direction: column; gap: 17px; text-decoration: none; }
.capability-card:hover { border-color: var(--accent); }
.capability-card p { font-size: .93rem; }
.card-link { margin-top: auto; padding-top: 12px; color: var(--accent); font-size: .8rem; font-weight: 600; display: flex; gap: 14px; align-items: center; }
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 30px; }
.step { border-top: 1px solid var(--border); padding-top: 22px; display: grid; gap: 14px; align-content: start; }
.step .step-number { font: .75rem ui-monospace, SFMono-Regular, Consolas, monospace; color: var(--accent); }
.step p { font-size: .9rem; }
.portfolio-reserved { height: 112px; border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); background: repeating-linear-gradient(135deg, transparent, transparent 14px, color-mix(in srgb, var(--ink) 3%, transparent) 14px, color-mix(in srgb, var(--ink) 3%, transparent) 15px); }
.company-strip { display: grid; grid-template-columns: 1.1fr 1fr; gap: 60px; padding-block: 64px; border-top: 1px solid var(--border); align-items: center; }
.company-strip > div { display: grid; gap: 18px; }
.company-strip .actions { justify-content: end; }
.site-footer { border-top: 1px solid var(--border); padding-block: 36px 28px; }
.footer-top { display: flex; justify-content: space-between; gap: 30px; margin-bottom: 30px; align-items: start; }
.footer-brand .brand { width: 128px; height: 35px; }
.footer-brand p { font-size: .8rem; margin-top: 12px; }
.footer-links { display: flex; flex-wrap: wrap; gap: 16px 25px; max-width: 540px; justify-content: end; }
.footer-links a { font-size: .82rem; color: var(--muted); text-decoration: none; }
.footer-links a:hover { color: var(--ink); text-decoration: underline; }
.footer-bottom { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 14px; padding-top: 22px; border-top: 1px solid var(--border); font-size: .72rem; color: var(--muted); }
.breadcrumb { display: flex; flex-wrap: wrap; gap: 10px; padding-top: 26px; font-size: .75rem; color: var(--muted); }
.breadcrumb a { text-decoration: none; }
.page-hero { padding-block: 52px 60px; display: grid; gap: 24px; max-width: 920px; }
.page-hero h1 { max-width: 900px; }
.page-hero p { max-width: 680px; font-size: 1.12rem; }
.split-section { display: grid; grid-template-columns: .85fr 1.15fr; gap: 75px; padding-block: 55px; border-top: 1px solid var(--border); align-items: start; }
.split-section > div { display: grid; gap: 20px; }
.prose { max-width: 750px; }
.prose h2 { margin-top: 38px; margin-bottom: 16px; font-size: 1.65rem; }
.prose p + p { margin-top: 18px; }
.detail-list { list-style: none; padding: 0; margin: 0; }
.detail-list li { display: grid; grid-template-columns: 22px 1fr; gap: 12px; padding-block: 16px; border-bottom: 1px solid var(--border); color: var(--muted); }
.detail-list li::before { content: '↗'; color: var(--accent); }
.detail-list li strong { display: block; color: var(--ink); font-weight: 600; margin-bottom: 4px; }
.long-steps { display: grid; gap: 0; }
.long-step { display: grid; grid-template-columns: 70px .8fr 1fr; gap: 32px; padding-block: 35px; border-top: 1px solid var(--border); }
.long-step > span { color: var(--accent); font: .9rem ui-monospace, SFMono-Regular, Consolas, monospace; padding-top: 5px; }
.contact-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 70px; padding-block: 0 75px; align-items: start; }
.contact-panel { display: grid; gap: 22px; padding: 35px; border: 1px solid var(--border); border-radius: 16px; background: var(--surface); }
.contact-email { font-size: clamp(1.2rem, 3vw, 2rem); letter-spacing: -.035em; font-weight: 600; width: fit-content; }
.contact-panel .button { width: fit-content; }
.contact-note { font-size: .82rem; }
.copy-button { display: inline-flex; background: transparent; border: 1px solid var(--border); border-radius: 28px; padding: 10px 18px; color: var(--ink); width: fit-content; min-height: 44px; }
.contact-status { min-height: 26px; color: var(--accent); font-size: .82rem; }
.faq-list details { padding-block: 20px; border-bottom: 1px solid var(--border); }
.faq-list summary { cursor: pointer; font-weight: 550; padding-right: 12px; }
.faq-list details p { padding-top: 14px; font-size: .95rem; }
.portfolio-empty { margin-bottom: 70px; min-height: 220px; }
.page-404 { text-align: center; padding-block: 90px; display: grid; justify-items: center; gap: 25px; }
@media (min-width: 1550px) { .container { width: min(1280px, calc(100% - 120px)); } }
@media (max-width: 1000px) {
  .desktop-nav { gap: 19px; }
  .hero { gap: 35px; padding-block: 65px; }
  .engineering-art { padding: 23px; min-height: 320px; }
  .terminal { padding: 18px; font-size: .72rem; }
  .capability-card { padding: 24px; }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .contact-layout, .split-section { gap: 38px; }
}
@media (max-width: 760px) {
  .container { width: calc(100% - 40px); }
  .header-inner { min-height: 82px; padding-block: 17px; gap: 12px; }
  .header-inner > .mobile-nav { grid-column: 2; grid-row: 1; justify-self: end; }
  .header-controls { grid-column: 1 / -1; grid-row: 2; }
  .theme-selector button { font-size: .7rem; padding-inline: 8px; }
  .brand { width: 145px; height: 40px; }
  .desktop-nav { display: none; }
  .mobile-nav { display: block; }
  .hero { grid-template-columns: 1fr; gap: 38px; padding-block: 45px 50px; }
  .hero-copy { gap: 24px; }
  .hero h1 { font-size: clamp(2.7rem, 9vw, 4.7rem); }
  .hero-copy p { max-width: 600px; }
  .engineering-art { min-height: 290px; padding: 30px; }
  .terminal { font-size: .85rem; }
  .card-grid { grid-template-columns: 1fr; }
  .capability-card { padding: 27px; }
  .section { padding-block: 43px; }
  .section-heading { align-items: start; flex-direction: column; gap: 18px; }
  .company-strip, .split-section, .contact-layout { grid-template-columns: 1fr; gap: 30px; }
  .company-strip { padding-block: 43px; }
  .company-strip .actions { justify-content: start; }
  .footer-top { flex-direction: column; }
  .footer-links { justify-content: start; gap: 15px 22px; }
  .footer-bottom { flex-direction: column; }
  .page-hero { padding-block: 38px 45px; }
  .split-section { padding-block: 40px; }
  .long-step { grid-template-columns: 35px 1fr; gap: 18px; }
  .long-step p { grid-column: 2; }
  .contact-panel { padding: 25px; }
}
@media (max-width: 400px) {
  .container { width: calc(100% - 32px); }
  .engineering-art { padding: 20px 15px; min-height: 260px; }
  .terminal { padding: 16px 12px; font-size: .7rem; }
  .steps { grid-template-columns: 1fr; }
}
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
@media print {
  .mobile-nav, .desktop-nav, .header-controls, .skip-link, .engineering-art, .copy-button { display: none; }
  body { background: white; color: black; }
  .container { width: 100%; }
  .hero, .split-section, .company-strip { display: block; }
}