:root {
  --bg: #191970;
  --surface: color-mix(in srgb, #00FFCC 8%, #191970);
  --text: #00FFCC;
  --muted: color-mix(in srgb, #00FFCC 78%, #191970);
  --border: color-mix(in srgb, #00FFCC 22%, #191970);
  --accent: #00FFCC;
  --accent-ink: #191970;
  --accent-soft: color-mix(in srgb, #00FFCC 14%, #191970);
  color-scheme: dark;
  --font: "Space Mono", ui-monospace, monospace;
  --font-title: "Oswald", "Arial Narrow", sans-serif;
  --max: 1120px;
}
/* Light theme: cyan background, navy text. Dark (above) is the inverse. */
@media (prefers-color-scheme: light) {
  :root:not([data-theme="dark"]) {
    color-scheme: light;
    --bg: #00FFCC;
    --surface: color-mix(in srgb, #191970 6%, #00FFCC);
    --text: #191970;
    --muted: color-mix(in srgb, #191970 82%, #00FFCC);
    --border: color-mix(in srgb, #191970 25%, #00FFCC);
    --accent: #191970;
    --accent-ink: #00FFCC;
    --accent-soft: color-mix(in srgb, #191970 12%, #00FFCC);
  }
}
:root[data-theme="light"] {
  color-scheme: light;
  --bg: #00FFCC;
  --surface: color-mix(in srgb, #191970 6%, #00FFCC);
  --text: #191970;
  --muted: color-mix(in srgb, #191970 82%, #00FFCC);
  --border: color-mix(in srgb, #191970 25%, #00FFCC);
  --accent: #191970;
  --accent-ink: #00FFCC;
  --accent-soft: color-mix(in srgb, #191970 12%, #00FFCC);
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 15px/1.65 var(--font);
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; }
.wrap { max-width: var(--max); margin: 0 auto; padding: 0 16px; }
@media (min-width: 720px) { .wrap { padding: 0 32px; } }

header {
  position: sticky; top: 0; z-index: 10;
  background: color-mix(in srgb, var(--bg) 85%, transparent);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}
.nav { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.brand { display: flex; align-items: center; gap: 8px; text-decoration: none; }
.brand-word { font-family: var(--font-title); font-weight: 700; font-size: 26px; line-height: 1; letter-spacing: 0.02em; }
.brand img { width: 32px; height: 32px; display: block; }
.nav ul { display: none; list-style: none; margin: 0; padding: 0; gap: 28px; }
.nav ul a { text-decoration: none; color: var(--muted); font-size: 15px; }
.nav ul a:hover { color: var(--text); }
@media (min-width: 760px) { .nav ul { display: flex; } }
.nav-actions { display: flex; align-items: center; gap: 10px; }
/* Light/dark switch: sun and moon both visible, the knob sits on the active one. */
.theme-toggle {
  position: relative; width: 64px; height: 32px; padding: 0 7px;
  display: flex; align-items: center; justify-content: space-between;
  background: var(--surface); color: var(--muted); cursor: pointer;
  border: 1px solid var(--border); border-radius: 999px;
}
.theme-toggle:hover { border-color: var(--text); }
.theme-toggle:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.theme-toggle svg { position: relative; z-index: 1; width: 16px; height: 16px; transition: color .2s; }
.theme-toggle::before {
  content: ""; position: absolute; top: 3px; left: 3px; width: 24px; height: 24px;
  border-radius: 50%; background: var(--accent); transition: transform .2s ease;
  transform: translateX(32px);
}
.theme-toggle .moon { color: var(--accent-ink); }
:root[data-mode="light"] .theme-toggle::before { transform: translateX(0); }
:root[data-mode="light"] .theme-toggle .sun { color: var(--accent-ink); }
:root[data-mode="light"] .theme-toggle .moon { color: var(--muted); }
@media (prefers-reduced-motion: reduce) { .theme-toggle::before { transition: none; } }
.hero-logo.on-light { display: none; }
:root[data-mode="light"] .hero-logo.on-light { display: block; }
:root[data-mode="light"] .hero-logo.on-dark { display: none; }

.btn {
  display: inline-block; padding: 12px 20px; border-radius: 8px;
  background: var(--accent); color: var(--accent-ink);
  font-weight: 700; text-decoration: none; font-size: 15px;
}
.btn:hover { filter: brightness(1.08); }
.btn.ghost { background: transparent; color: var(--text); border: 1px solid var(--border); }
.btn.small { padding: 8px 14px; font-size: 14px; }

.hero { padding-top: 48px; padding-bottom: 64px; display: grid; gap: 32px; align-items: center; }
.hero > *, .grid > * { min-width: 0; }
.hero-logo { width: 140px; height: auto; display: block; }
@media (min-width: 900px) {
  .hero { padding-top: 88px; padding-bottom: 72px; grid-template-columns: 1fr auto; gap: 64px; }
  .hero-logo { width: 260px; order: 2; }
}
.eyebrow {
  font-family: var(--font); font-size: 13px;
  color: var(--accent); letter-spacing: 0.02em; margin: 0 0 16px;
}
h1, h2, h3 { font-family: var(--font-title); font-weight: 700; letter-spacing: 0.01em; }
h1 { font-size: clamp(38px, 6.4vw, 68px); line-height: 1.05; margin: 0 0 20px; max-width: 16ch; }
.lede { font-size: clamp(17px, 2vw, 20px); color: var(--muted); max-width: 60ch; margin: 0 0 32px; }
.cta { display: flex; flex-wrap: wrap; gap: 12px; }

section { padding: 72px 0; border-top: 1px solid var(--border); }
h2 { font-size: clamp(30px, 4.2vw, 44px); line-height: 1.1; margin: 0 0 12px; }
.section-lede { color: var(--muted); max-width: 60ch; margin: 0 0 40px; }

.grid { display: grid; gap: 16px; grid-template-columns: 1fr; }
@media (min-width: 640px) { .grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 980px) { .grid.three { grid-template-columns: repeat(3, 1fr); } }
.card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: 12px; padding: 24px;
}
.card h3 { font-size: 22px; line-height: 1.2; margin: 0 0 8px; }
.card p { color: var(--muted); margin: 0; font-size: 15px; }
.card-art {
  display: block; position: relative; aspect-ratio: 320 / 180; margin-bottom: 20px;
  border-radius: 8px; border: 1px solid var(--border); background: var(--bg);
}
.card-art::before {
  content: ""; position: absolute; inset: 0; background: var(--accent);
  -webkit-mask: var(--art) center / 100% 100% no-repeat;
  mask: var(--art) center / 100% 100% no-repeat;
}

.steps { counter-reset: step; }
.steps .card h3::before {
  counter-increment: step; content: "0" counter(step);
  display: block; font-family: var(--font);
  font-size: 13px; color: var(--accent); margin-bottom: 8px;
}

.stack { display: flex; flex-wrap: wrap; gap: 8px; }
.stack span {
  font-family: var(--font); font-size: 13px;
  padding: 6px 12px; border: 1px solid var(--border); border-radius: 999px;
  background: var(--surface); color: var(--muted);
}

.contact { text-align: center; }

.offer { display: grid; gap: 32px; }
@media (min-width: 900px) { .offer { grid-template-columns: 1fr 1fr; gap: 48px; align-items: start; } }
.offer > * { min-width: 0; }
.offer ul { list-style: none; margin: 0 0 24px; padding: 0; display: grid; gap: 12px; }
.offer li { padding-left: 24px; position: relative; color: var(--muted); }
.offer li::before { content: ">"; position: absolute; left: 0; color: var(--accent); font-weight: 700; }
.offer .note { font-size: 13px; color: var(--muted); margin: 0; }
.form { background: var(--surface); border: 1px solid var(--border); border-radius: 12px; padding: 24px; display: grid; gap: 16px; }
.form label { display: grid; gap: 6px; font-size: 14px; font-weight: 700; }
.form .row { display: grid; gap: 16px; }
@media (min-width: 560px) { .form .row { grid-template-columns: 1fr 1fr; } }
.form input, .form select, .form textarea {
  width: 100%; font: inherit; font-weight: 400; color: var(--text);
  background: var(--bg); border: 1px solid var(--border); border-radius: 8px; padding: 10px 12px;
}
.form textarea { min-height: 96px; resize: vertical; }
.form input:focus, .form select:focus, .form textarea:focus { outline: 2px solid var(--accent); outline-offset: 1px; }
.form .hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.form button { border: 0; cursor: pointer; font-family: inherit; justify-self: start; }
.form button:disabled { opacity: .6; cursor: wait; }
.form .status { margin: 0; min-height: 1.5em; font-size: 14px; }
.contact .section-lede { margin-left: auto; margin-right: auto; }
.contact .cta { justify-content: center; }

footer { border-top: 1px solid var(--border); padding: 28px 0; color: var(--muted); font-size: 14px; }
footer .wrap { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: 8px 16px; }
footer .footer-brand { display: flex; flex-wrap: wrap; align-items: center; gap: 8px 20px; }
footer .brand { color: var(--text); }

/* Service pages */
.crumbs { font-size: 13px; color: var(--muted); margin: 0 0 16px; }
.crumbs a { text-decoration: none; }
.crumbs a:hover { color: var(--text); text-decoration: underline; }
.hero-art { width: 100%; max-width: 420px; margin: 0; }
@media (min-width: 900px) { .hero-art { width: 420px; } }
.checklist { list-style: none; margin: 0; padding: 0; display: grid; gap: 12px; max-width: 72ch; }
.checklist li { padding-left: 24px; position: relative; color: var(--muted); }
.checklist li::before { content: ">"; position: absolute; left: 0; color: var(--accent); font-weight: 700; }
.card h3 a { text-decoration: none; }
.card h3 a:hover { text-decoration: underline; }
.more { display: inline-block; margin-top: 12px; font-size: 14px; font-weight: 700; color: var(--accent); text-decoration: none; }
.more:hover { text-decoration: underline; }