/* BuildWithMe — shared, dependency-free design system. */
:root {
  color-scheme: dark;
  --bg: #0b0e13;
  --surface: #12161f;
  --surface-raised: #171d28;
  --border: rgba(255, 255, 255, .08);
  --text: #e9edf3;
  --muted: #9aa7b5;
  --accent: #4ade80;
  --accent-hover: #22c55e;
  --radius: 16px;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  font-synthesis: none;
  text-rendering: optimizeLegibility;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 112px; }
body { margin: 0; background: var(--bg); color: var(--text); font-size: 16px; line-height: 1.7; }
::selection { background: var(--accent); color: var(--bg); }
a { color: inherit; text-decoration: none; }
a:hover { color: var(--accent); }
button, input, textarea, select { font: inherit; }
button, select { cursor: pointer; }
button { color: inherit; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 5px; }
[hidden] { display: none !important; }
h1, h2, h3, p { margin: 0; }
h1, h2, h3 { line-height: 1.15; font-weight: 650; }
h1 { font-size: clamp(2.6rem, 5.5vw, 5rem); letter-spacing: -.055em; }
h2 { font-size: clamp(1.9rem, 3.3vw, 2.8rem); letter-spacing: -.04em; }
h3 { font-size: 1.2rem; letter-spacing: -.02em; }
p { color: var(--muted); }
p + p { margin-top: 1rem; }
.wrap { width: min(1184px, calc(100% - 64px)); margin-inline: auto; }
.section { padding-block: 88px; }
.eyebrow { font-size: .72rem; font-weight: 650; letter-spacing: .14em; text-transform: uppercase; color: var(--accent); margin-bottom: 23px; }
.lead { font-size: clamp(1.06rem, 1.6vw, 1.22rem); line-height: 1.75; max-width: 680px; margin-top: 26px; }
.muted { color: var(--muted); }
.status-dot { display: inline-block; width: 6px; height: 6px; background: var(--accent); border-radius: 50%; vertical-align: middle; margin-right: 8px; }
.skip-link { position: fixed; top: -100px; left: 16px; padding: 12px 20px; background: var(--accent); color: var(--bg); z-index: 100; border-radius: 8px; }
.skip-link:focus { top: 12px; color: var(--bg); }
.site-header { position: sticky; top: 0; z-index: 30; border-bottom: 1px solid var(--border); background: rgba(11, 14, 19, .95); backdrop-filter: blur(18px); }
.header-inner { display: flex; align-items: center; justify-content: space-between; min-height: 88px; gap: 30px; }
.logo { font-size: 1.42rem; font-weight: 750; letter-spacing: -.055em; white-space: nowrap; }
.logo span { color: var(--accent); }
.primary-nav { display: flex; align-items: center; gap: 30px; }
.primary-nav > a { font-size: .86rem; font-weight: 550; }
.primary-nav > a[aria-current] { color: var(--accent); }
.button { display: inline-flex; align-items: center; justify-content: center; gap: 24px; padding: 14px 22px; min-height: 48px; background: var(--accent); border: 1px solid transparent; border-radius: 8px; color: var(--bg); font-size: .88rem; font-weight: 700; line-height: 1.4; transition: background .2s, border-color .2s, transform .2s; }
.button:hover { background: var(--accent-hover); color: var(--bg); transform: translateY(-2px); }
.button.secondary { background: transparent; border-color: rgba(255,255,255,.17); color: var(--text); }
.button.secondary:hover { background: var(--surface-raised); border-color: var(--muted); }
.primary-nav .nav-cta { margin-left: 6px; padding: 11px 17px; min-height: 42px; font-size: .8rem; }
.nav-toggle { background: var(--surface); border: 1px solid var(--border); border-radius: 8px; padding: 10px 14px; }
.nav-toggle span { margin-left: 10px; }
.hero { display: grid; grid-template-columns: 1.45fr 1fr; align-items: center; gap: 70px; padding-block: 100px 108px; position: relative; }
.hero::before { content: ""; position: absolute; inset: 0 -20px; background: radial-gradient(ellipse at 70% 35%, rgba(74,222,128,.065), transparent 64%); z-index: -1; pointer-events: none; }
.hero h1 { font-size: clamp(2.7rem, 4.5vw, 4.15rem); }
.hero h1 span { color: var(--accent); }
.hero .lead { font-size: 1.05rem; max-width: 560px; }
.actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 32px; }
.hero-note { font-size: .75rem; margin-top: 24px; }
.build-panel { border: 1px solid rgba(255,255,255,.12); border-radius: var(--radius); background: linear-gradient(145deg, var(--surface-raised), var(--surface)); box-shadow: 0 24px 60px rgba(0,0,0,.22); transform: rotate(1deg); }
.panel-top { border-bottom: 1px solid var(--border); padding: 18px; display: flex; align-items: center; font-size: .61rem; letter-spacing: .08em; color: var(--muted); }
.panel-top > span:last-child { margin-left: auto; }
.system-map { padding: 36px 28px; }
.system-node { background: var(--bg); border: 1px solid var(--border); border-radius: 9px; padding: 18px; font-size: .92rem; font-weight: 600; }
.system-node span, .system-pair span { display: block; font-size: .7rem; color: var(--muted); margin-top: 5px; font-weight: 400; }
.system-node.highlighted { border-color: rgba(74,222,128,.35); box-shadow: 0 0 22px rgba(74,222,128,.035); }
.connector { text-align: center; color: var(--accent); font-size: 1.3rem; line-height: 42px; }
.system-pair { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.system-pair > div { padding: 16px; border: 1px solid var(--border); border-radius: 9px; font-size: .9rem; background: var(--bg); }
.panel-bottom { display: flex; justify-content: space-between; align-items: center; padding: 16px 22px; border-top: 1px solid var(--border); }
.mono { font-family: ui-monospace, SFMono-Regular, Consolas, monospace; font-size: .7rem; color: var(--muted); }
.small-mark { color: var(--accent); }
.section-heading { display: flex; align-items: end; justify-content: space-between; gap: 60px; margin-bottom: 38px; }
.section-heading > p { max-width: 345px; font-size: .95rem; }
.grid { display: grid; gap: 20px; }
.two { grid-template-columns: repeat(2, minmax(0,1fr)); }
.four { grid-template-columns: repeat(4, minmax(0,1fr)); gap: 32px; }
.service-card, .card { border: 1px solid var(--border); border-radius: var(--radius); padding: 34px; background: var(--surface); box-shadow: 0 8px 24px rgba(0,0,0,.08); }
.service-card { display: flex; flex-direction: column; align-items: start; transition: border-color .2s, background .2s, transform .2s; }
.service-card:hover { border-color: rgba(74,222,128,.35); background: var(--surface-raised); color: var(--text); transform: translateY(-3px); }
.card-number { font-family: ui-monospace, SFMono-Regular, Consolas, monospace; color: var(--accent); font-size: .75rem; margin-bottom: 34px; }
.service-card h3 { font-size: 1.4rem; margin-bottom: 15px; }
.service-card p { font-size: .94rem; margin-bottom: 30px; }
.text-link { color: var(--accent); font-size: .85rem; font-weight: 600; }
.service-card .text-link { margin-top: auto; }
.text-link span { margin-left: 10px; }
.surface-section { background: var(--surface); border-block: 1px solid var(--border); }
.mini-index { display: inline-block; color: var(--accent); margin-bottom: 24px; font-size: .75rem; font-family: ui-monospace, monospace; }
.four h3 { margin-bottom: 14px; font-size: 1.1rem; }
.four p { font-size: .9rem; }
.stack-strip { padding-block: 49px; border-bottom: 1px solid var(--border); }
.stack-strip .eyebrow { color: var(--muted); margin-bottom: 22px; }
.stack-items { display: flex; flex-wrap: wrap; gap: 22px 43px; font-size: 1.15rem; font-weight: 600; letter-spacing: -.02em; }
.stack-strip > p:last-child { margin-top: 17px; font-size: .75rem; }
.process-strip { display: grid; grid-template-columns: repeat(6, 1fr); list-style: none; margin: 0; padding: 30px 0; border-block: 1px solid var(--border); gap: 15px; }
.process-strip li { font-size: .86rem; }
.process-strip span { display: block; color: var(--accent); margin-bottom: 13px; font-family: ui-monospace, monospace; font-size: .72rem; }
.faq { display: grid; grid-template-columns: .85fr 1.15fr; gap: 70px; padding-top: 20px; }
details { border-bottom: 1px solid var(--border); }
summary { padding: 23px 28px 23px 0; cursor: pointer; font-weight: 550; font-size: .96rem; position: relative; list-style: none; }
summary::-webkit-details-marker { display: none; }
summary::after { content: "+"; position: absolute; right: 0; color: var(--accent); font-size: 1.2rem; top: 19px; }
details[open] summary::after { content: "−"; }
details p { padding-bottom: 23px; font-size: .93rem; }
.cta { padding: 48px; border: 1px solid rgba(74,222,128,.16); background: radial-gradient(ellipse at right top, rgba(74,222,128,.07), transparent 70%), var(--surface); border-radius: var(--radius); display: flex; justify-content: space-between; align-items: center; gap: 45px; }
.cta h2 { max-width: 650px; }
.cta p:not(.eyebrow) { margin-top: 16px; }
.cta .button { flex-shrink: 0; }
.page-intro { padding-block: 90px 68px; border-bottom: 1px solid var(--border); }
.page-intro h1 { max-width: 950px; }
.page-intro .lead { max-width: 730px; }
.service-detail { display: grid; grid-template-columns: 1fr 1fr; gap: 80px; padding-block: 72px; border-bottom: 1px solid var(--border); scroll-margin-top: 20px; }
.service-detail .lead { font-size: 1.05rem; }
.detail-box { padding: 32px; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); }
.detail-box h3 { font-size: .85rem; margin-bottom: 12px; }
.detail-box p, .detail-box ul { font-size: .92rem; }
.detail-box h3:not(:first-child) { margin-top: 28px; }
.check-list { list-style: none; padding: 0; margin: 12px 0 0; color: var(--muted); }
.check-list li { position: relative; padding-left: 23px; margin-bottom: 10px; }
.check-list li::before { content: "↗"; position: absolute; left: 0; color: var(--accent); font-size: .8rem; top: 2px; }
.note { padding-top: 36px; font-size: .85rem; }
.timeline { max-width: 1000px; }
.timeline-step { display: grid; grid-template-columns: 70px 1fr; gap: 40px; padding-block: 56px; border-bottom: 1px solid var(--border); }
.step-number { color: var(--accent); font-family: ui-monospace, monospace; font-size: 1.15rem; border: 1px solid var(--border); background: var(--surface); border-radius: 12px; width: 60px; height: 60px; display: grid; place-items: center; }
.timeline-step .eyebrow { margin-bottom: 14px; }
.timeline-step h2 { font-size: 2rem; margin-bottom: 20px; }
.step-meta { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; margin-top: 28px; }
.step-meta h3 { font-size: .8rem; margin-bottom: 10px; color: var(--text); }
.step-meta p { font-size: .88rem; }
.card h2 { margin-bottom: 22px; }
.card > h3 { margin-bottom: 14px; }
.card p { font-size: .95rem; }
.about-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 70px; }
.prose p { font-size: 1.06rem; }
.founder { display: flex; align-items: center; gap: 50px; max-width: 900px; margin-inline: auto; padding: 45px; }
.founder-monogram { flex-shrink: 0; display: grid; place-content: center; position: relative; font-size: 4rem; width: 150px; height: 150px; border-radius: 14px; background: var(--surface-raised); letter-spacing: -.09em; }
.founder-monogram span { color: var(--accent); position: absolute; bottom: 19px; right: 28px; }
.founder .eyebrow { margin-bottom: 12px; }
.founder h2 { margin-bottom: 17px; }
.contact-layout { display: grid; grid-template-columns: 1fr 1.05fr; gap: 70px; align-items: start; }
.email-link { display: inline-block; color: var(--accent); font-size: clamp(1.08rem, 2.1vw, 1.5rem); font-weight: 600; letter-spacing: -.02em; margin-bottom: 12px; overflow-wrap: anywhere; }
.contact-notes { margin-top: 42px; }
.contact-notes h2 { font-size: 1.15rem; margin-top: 32px; margin-bottom: 18px; }
.contact-notes p, .contact-notes li { font-size: .92rem; }
.plain-steps { padding-left: 21px; color: var(--muted); }
.plain-steps li { padding-left: 5px; margin-bottom: 12px; }
.plain-steps li::marker { color: var(--accent); }
.inquiry-form h2 { font-size: 1.5rem; margin-bottom: 14px; }
.inquiry-form > p { font-size: .85rem; }
.field { margin-top: 24px; }
label { display: block; margin-bottom: 8px; font-size: .85rem; font-weight: 600; }
label span { color: var(--muted); font-weight: 400; font-size: .75rem; }
input, textarea, select { display: block; width: 100%; border: 1px solid rgba(255,255,255,.16); border-radius: 8px; background: var(--bg); padding: 12px 14px; color: var(--text); min-height: 48px; }
textarea { resize: vertical; }
input:hover, textarea:hover, select:hover { border-color: var(--muted); }
::placeholder { color: var(--muted); opacity: .8; }
.inquiry-form .button { width: 100%; margin-top: 26px; }
.form-status { margin-top: 16px; }
.form-status:empty { display: none; }
.inquiry-form .fine-print { font-size: .76rem; margin-top: 20px; }
.fine-print a, .legal-content a { color: var(--accent); text-decoration: underline; text-underline-offset: 3px; }
.legal-content { max-width: 820px; padding-block: 38px 100px; }
.effective { font-size: .82rem; margin-bottom: 45px; }
.legal-content section { margin-top: 36px; }
.legal-content h2 { font-size: 1.4rem; margin-bottom: 17px; }
.legal-content p { font-size: .96rem; }
.not-found { padding-block: 70px 110px; text-align: center; }
.error-code { font-size: clamp(6rem, 16vw, 12rem); line-height: 1.1; letter-spacing: -.08em; font-weight: 750; color: var(--surface-raised); margin-bottom: 30px; }
.error-code span { color: var(--accent); }
.not-found h1 { font-size: clamp(2.5rem, 5vw, 4rem); }
.not-found .lead { margin-inline: auto; max-width: 520px; }
.not-found .actions { justify-content: center; }
.site-footer { border-top: 1px solid var(--border); background: #0a0d12; }
.footer-top { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 50px; padding-block: 60px; }
.footer-brand p { font-size: .87rem; margin-top: 17px; margin-bottom: 20px; }
.footer-brand > a:last-child { color: var(--muted); font-size: .85rem; }
.footer-brand > a:last-child:hover { color: var(--accent); }
.footer-top nav { display: flex; flex-direction: column; align-items: start; gap: 10px; }
.footer-top nav h2 { font-size: .8rem; margin-bottom: 8px; letter-spacing: 0; }
.footer-top nav a { color: var(--muted); font-size: .85rem; }
.footer-top nav a:hover { color: var(--accent); }
.footer-bottom { border-top: 1px solid var(--border); display: flex; justify-content: space-between; gap: 30px; padding-block: 23px; font-size: .7rem; color: var(--muted); }
.footer-bottom .status-dot { margin: 0 0 1px 8px; width: 5px; height: 5px; }
/* Reveal classes are applied only after the observer is available. */
.reveal-ready { opacity: 0; transform: translateY(16px); transition: opacity .55s ease, transform .55s ease; }
.reveal-ready.is-visible { opacity: 1; transform: none; }
@media (min-width: 1800px) { .hero { padding-block: 125px; } }
@media (max-width: 1020px) {
  .primary-nav { gap: 20px; }
  .hero { gap: 35px; }
  .hero h1 { font-size: clamp(2.7rem, 5vw, 3.8rem); }
  .system-map { padding: 25px 20px; }
  .four { grid-template-columns: repeat(2, minmax(0,1fr)); gap: 35px; }
  .service-detail, .contact-layout { gap: 38px; }
  .cta { padding: 35px; }
}
@media (max-width: 760px) {
  .wrap { width: calc(100% - 40px); }
  .header-inner { min-height: 76px; flex-wrap: wrap; gap: 0; }
  .logo { font-size: 1.3rem; }
  .nav-toggle:not([hidden]) { display: block; }
  .primary-nav { width: 100%; flex-direction: column; align-items: stretch; gap: 0; padding: 8px 0 20px; }
  .primary-nav > a { padding: 12px 4px; }
  .primary-nav .nav-cta { margin: 10px 0 0; padding: 14px; }
  .nav-enhanced .primary-nav:not(.is-open) { display: none; }
  .hero { grid-template-columns: 1fr; gap: 50px; padding-block: 55px 65px; }
  .hero h1 { font-size: clamp(2.65rem, 8vw, 3.8rem); max-width: 650px; }
  .hero .eyebrow { font-size: .62rem; letter-spacing: .1em; }
  .build-panel { transform: none; max-width: 480px; width: 100%; }
  .section { padding-block: 60px; }
  .section-heading { display: block; margin-bottom: 28px; }
  .section-heading > p, .section-heading > a { display: block; margin-top: 22px; }
  .section-heading > p { max-width: 550px; }
  .two { grid-template-columns: 1fr; }
  .service-card, .card { padding: 27px; }
  .card-number { margin-bottom: 24px; }
  .stack-items { gap: 18px 27px; font-size: 1rem; }
  .process-strip { grid-template-columns: repeat(3, 1fr); row-gap: 28px; }
  .faq { grid-template-columns: 1fr; gap: 22px; }
  .cta { flex-direction: column; align-items: start; gap: 25px; padding: 30px; }
  .page-intro { padding-block: 55px 42px; }
  .service-detail { grid-template-columns: 1fr; padding-block: 45px; gap: 28px; }
  .timeline-step { gap: 20px; grid-template-columns: 45px 1fr; padding-block: 40px; }
  .step-number { width: 42px; height: 42px; font-size: .9rem; }
  .timeline-step h2 { font-size: 1.65rem; }
  .step-meta { grid-template-columns: 1fr; gap: 20px; }
  .about-layout, .contact-layout { grid-template-columns: 1fr; gap: 30px; }
  .founder { gap: 27px; align-items: start; }
  .founder-monogram { width: 95px; height: 95px; font-size: 3rem; }
  .founder-monogram span { right: 12px; bottom: 7px; }
  .footer-top { grid-template-columns: 1fr 1fr; gap: 35px; padding-block: 44px; }
  .footer-brand { grid-column: 1 / -1; }
  .footer-bottom { flex-direction: column; gap: 10px; }
}
@media (max-width: 420px) {
  .wrap { width: calc(100% - 32px); }
  .four { grid-template-columns: 1fr; }
  .hero h1 { font-size: 2.5rem; }
  .actions { flex-direction: column; align-items: stretch; }
  .hero .eyebrow { letter-spacing: .045em; }
  .founder { flex-direction: column; }
  .timeline-step { grid-template-columns: 1fr; }
  .service-card, .card, .detail-box { padding: 23px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; animation: none !important; }
  .reveal-ready { opacity: 1; transform: none; }
}
@media print {
  :root { --bg: #fff; --surface: #fff; --surface-raised: #eee; --text: #111; --muted: #444; --accent: #166534; --border: #ccc; color-scheme: light; }
  .site-header, .site-footer, .nav-toggle, .inquiry-form, .skip-link { display: none; }
  .wrap { width: 100%; }
  .section, .page-intro { padding-block: 24px; }
  .reveal-ready { opacity: 1; transform: none; }
  .card, .service-card, .build-panel { box-shadow: none; break-inside: avoid; }
}

/* V3: system preview, engagement cards, and studio details. */
.hero > *, .grid > *, .contact-layout > *, .service-detail > * { min-width: 0; }
.dashboard { transform: none; }
.dashboard .panel-top { gap: 8px; flex-wrap: wrap; }
.dashboard .panel-top > span:last-child { margin-left: 0; }
.dashboard-body { padding: 24px; }
.dashboard-caption { font-size: .72rem; margin-bottom: 20px; }
.metric-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
.metric-grid > div { padding: 16px; background: var(--bg); border: 1px solid var(--border); border-radius: 10px; }
.metric-grid span, .metric-grid small { display: block; color: var(--muted); font-size: .7rem; }
.metric-grid strong { display: block; font-size: clamp(1.45rem, 3vw, 2rem); letter-spacing: -.04em; line-height: 1.4; }
.chart-heading { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 8px; margin-top: 24px; font-size: .75rem; }
.sample-chart { display: flex; align-items: flex-end; gap: 5px; height: 100px; padding-top: 12px; margin-bottom: 20px; border-bottom: 1px solid var(--border); }
.sample-chart > div { flex: 1; height: var(--bar); border-radius: 3px 3px 0 0; background: linear-gradient(0deg, rgba(74,222,128,.15), var(--accent)); }
.queue-row { display: flex; justify-content: space-between; gap: 12px; padding: 10px 0; border-top: 1px solid var(--border); font-size: .72rem; color: var(--muted); }
.queue-row > span:last-child { color: var(--accent); }
.dashboard .panel-bottom { gap: 12px; }
.three { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.three .card h3 { margin-bottom: 18px; line-height: 1.3; }
.tech-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); list-style: none; gap: 12px; padding: 0; margin: 30px 0 20px; }
.tech-grid li { background: var(--surface); border: 1px solid var(--border); border-radius: 10px; padding: 18px; font-size: .95rem; }
.principles-strip { padding-block: 36px; }
.principles-strip h2 { font-size: 1.25rem; }
.principles-strip ul { display: flex; flex-wrap: wrap; gap: 16px 32px; list-style: none; padding: 0; margin: 22px 0 0; font-size: .85rem; color: var(--muted); }
.principles-strip li::before { content: '✓'; margin-right: 10px; color: var(--accent); }
.contact-legal { margin-top: 24px; }
.contact-legal h2 { font-size: 1.15rem; margin-bottom: 18px; }
.contact-legal address { font-style: normal; color: var(--muted); margin-block: 16px; overflow-wrap: anywhere; }
.contact-legal address a { color: var(--accent); }
.contact-legal p { font-size: .92rem; }
.legal-content .check-list { font-size: .96rem; }
.footer-bottom > p { max-width: 780px; }
.footer-bottom > span { flex-shrink: 0; }
@media (max-width: 1020px) {
  .three { grid-template-columns: 1fr; }
  .tech-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}
@media (max-width: 760px) {
  .dashboard { max-width: none; }
  .tech-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .principles-strip ul { flex-direction: column; }
}
@media (max-width: 420px) {
  .dashboard-body { padding: 18px; }
  .metric-grid > div { padding: 12px; }
  .tech-grid li { padding: 14px; font-size: .85rem; }
}