/* ============================================================
   Curiosys inc. — homepage styles
   ============================================================ */

:root {
  --bg: #f6f5f1;
  --fg: #0a0a0a;
  --muted: #7a7a78;
  --line: #d8d6cf;
  --panel: #efede7;
  --accent: oklch(0.84 0.20 128);
  --accent-fg: #0a0a0a;

  --serif: "Instrument Serif", "Noto Sans JP", serif;
  --sans: "Inter", "Noto Sans JP", system-ui, -apple-system, sans-serif;
  --mono: "JetBrains Mono", ui-monospace, monospace;
}

* { box-sizing: border-box; }

html, body {
  margin: 0; padding: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: var(--sans);
  font-feature-settings: "ss01", "cv11";
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
body { overflow-x: hidden; }

a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; padding: 0; }
::selection { background: var(--accent); color: var(--accent-fg); }

/* ---------- Utility ---------- */

.wrap { max-width: 1480px; margin: 0 auto; padding: 0 40px; }

.mono { font-family: var(--mono); font-size: 11px; letter-spacing: 0.04em; text-transform: uppercase; }
.serif { font-family: var(--serif); font-weight: 400; font-style: italic; }
.muted { color: var(--muted); }

.tag {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--mono); font-size: 11px;
  letter-spacing: 0.04em; text-transform: uppercase; color: var(--muted);
}
.tag .dot {
  width: 6px; height: 6px; border-radius: 999px;
  background: var(--accent); display: inline-block;
}

.hairline { height: 1px; background: var(--line); width: 100%; }

.accent-mark {
  background: linear-gradient(180deg, transparent 62%, var(--accent) 62%, var(--accent) 92%, transparent 92%);
  padding: 0 0.05em;
}

/* CTA */
.cta-primary {
  font-size: 14px; padding: 12px 20px;
  background: var(--fg); color: var(--bg);
  border-radius: 999px; display: inline-flex; align-items: center; gap: 6px;
}
.cta-secondary {
  font-size: 14px; padding: 12px 20px;
  border: 1px solid var(--line); border-radius: 999px;
  display: inline-flex; align-items: center; gap: 6px;
}

.ulink { position: relative; display: inline-flex; align-items: center; gap: 8px; }
.ulink::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: -2px; height: 1px; background: currentColor;
  transform: scaleX(1); transform-origin: right; transition: transform .4s cubic-bezier(.7,0,.2,1);
}
.ulink:hover::after { transform: scaleX(0); transform-origin: left; }

/* ---------- Reveal ---------- */
.reveal { opacity: 0; transform: translateY(12px); transition: opacity .8s ease, transform .8s ease; }
.reveal.in { opacity: 1; transform: translateY(0); }

/* ---------- Marquee ---------- */
@keyframes marquee { from { transform: translateX(0); } to { transform: translateX(-50%); } }
.marquee { overflow: hidden; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); padding: 14px 0; }
.marquee-inner { display: flex; width: max-content; animation: marquee 60s linear infinite; }
.marquee-row { display: flex; gap: 56px; padding-right: 56px; align-items: center; flex-shrink: 0; }
.marquee-row span.item {
  display: inline-flex; align-items: center; gap: 12px;
  font-family: var(--mono); font-size: 11px; letter-spacing: 0.04em; text-transform: uppercase;
}
.marquee-row span.item::before {
  content: ""; width: 6px; height: 6px; background: var(--accent);
}

/* ---------- Nav ---------- */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 50;
  transition: background .3s, border-color .3s, backdrop-filter .3s;
  border-bottom: 1px solid transparent;
}
.nav.scrolled {
  backdrop-filter: blur(14px) saturate(1.1);
  background: color-mix(in oklab, var(--bg) 78%, transparent);
  border-bottom-color: var(--line);
}
.nav-inner { display: flex; align-items: center; height: 64px; gap: 32px; }
.nav-logo { display: flex; align-items: center; gap: 10px; font-weight: 600; letter-spacing: -0.01em; }
.nav-logo svg rect { fill: currentColor; }
.nav-logo .logotype { font-size: 15px; }
.nav-logo .sublabel { margin-left: 4px; font-family: var(--mono); color: var(--muted); font-size: 11px; letter-spacing: 0.04em; text-transform: uppercase; }
.nav-links { display: flex; gap: 28px; margin-left: 32px; }
.nav-links a { font-size: 14px; }
.nav-spacer { flex: 1; }
.nav-cta {
  font-size: 13px; padding: 8px 16px;
  background: var(--fg); color: var(--bg);
  border-radius: 999px; display: inline-flex; align-items: center; gap: 8px;
}
.nav-cta .blink {
  width: 6px; height: 6px; border-radius: 999px; background: var(--accent);
  animation: blink 1s steps(2) infinite;
}
@keyframes blink { 0%, 49% { opacity: 1; } 50%, 100% { opacity: 0; } }

/* ---------- Section header ---------- */
.section-header {
  display: grid; grid-template-columns: 120px 1fr; gap: 32px;
  align-items: baseline; padding-bottom: 28px;
  border-bottom: 1px solid var(--line);
}
.section-header .index { font-family: var(--mono); font-size: 11px; letter-spacing: 0.04em; text-transform: uppercase; color: var(--muted); }
.section-header .row { display: flex; justify-content: space-between; align-items: baseline; gap: 24px; flex-wrap: wrap; }
.section-header h2 {
  margin: 0; font-size: clamp(28px, 3.6vw, 56px);
  font-weight: 500; letter-spacing: -0.02em; line-height: 1.05;
}
.section-header .kicker { font-family: var(--mono); font-size: 11px; letter-spacing: 0.04em; text-transform: uppercase; color: var(--muted); }

/* ============================================================
   Hero
   ============================================================ */

.hero { padding: 144px 0 64px; }
.hero-topline {
  display: flex; justify-content: space-between; align-items: baseline;
  margin-bottom: 56px; flex-wrap: wrap; gap: 16px;
}
.hero h1 {
  margin: 0;
  /* Fill the wrap content area: char width ~= 0.95em with letter-spacing -0.05em,
     longest line is 13 chars → divisor ≈ 12.3.
     Cap at 114px because wrap is capped at 1480px (inner 1400px). */
  font-size: clamp(40px, calc((100vw - 80px) / 12.3), 114px);
  font-weight: 400; letter-spacing: -0.05em; line-height: 0.95;
  white-space: pre-line;          /* preserve the line break in the source */
}
.hero h1 .square {
  display: inline-block; width: 0.5em; height: 0.5em;
  background: var(--fg); margin-left: 0.05em; vertical-align: baseline;
  transform: translateY(-0.05em);
}
.hero-lead {
  margin: 56px 0 0;
  display: grid; gap: 22px;
  max-width: 640px;
}
.hero-lead p {
  margin: 0; font-size: 18px; line-height: 1.75;
}
.hero-cta { display: flex; gap: 14px; margin-top: 12px; }

/* ============================================================
   Bridgia section
   ============================================================ */

.bridgia { padding: 120px 0; position: relative; }

.bridgia-grid {
  margin-top: 56px;
  display: grid; grid-template-columns: 1.05fr 0.95fr;
  gap: 48px; align-items: start;
}
.bridgia-headline {
  margin: 0; font-weight: 500; letter-spacing: -0.03em;
  font-size: clamp(36px, 4.6vw, 68px); line-height: 1.04;
}
.bridgia-body {
  margin-top: 28px; max-width: 540px;
  font-size: 16px; line-height: 1.75; color: var(--muted);
}
.bridgia-body strong { color: var(--fg); }
.bridgia-cta { display: flex; gap: 14px; margin-top: 32px; }

.bridgia-stats {
  margin-top: 48px;
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 0;
  border-top: 1px solid var(--line);
}
.bridgia-stats > div { padding: 22px 18px 0 0; }
.bridgia-stats > div:not(:last-child) { border-right: 1px solid var(--line); }
.bridgia-stats .n { font-size: 36px; font-weight: 500; letter-spacing: -0.02em; }
.bridgia-stats .l { font-family: var(--mono); font-size: 11px; letter-spacing: 0.04em; text-transform: uppercase; color: var(--muted); margin-top: 6px; }

/* feature grid (3 columns under) */
.features {
  margin-top: 96px; display: grid; grid-template-columns: repeat(3, 1fr); gap: 0;
  border-top: 1px solid var(--line);
}
.features .item {
  padding: 32px 28px 28px 0;
  border-bottom: 1px solid var(--line);
}
.features .item:not(:last-child) { border-right: 1px solid var(--line); }
.features .item .num { font-family: var(--mono); font-size: 11px; letter-spacing: 0.04em; text-transform: uppercase; color: var(--muted); margin-bottom: 18px; }
.features .item .t { font-size: 22px; font-weight: 500; letter-spacing: -0.01em; margin-bottom: 12px; }
.features .item .b { margin: 0; color: var(--muted); font-size: 14.5px; line-height: 1.75; }

/* ---------- Live card (template cycling) ---------- */
.live-card {
  border: 1px solid var(--line); background: var(--panel);
  padding: 20px; position: relative; overflow: hidden;
  box-shadow: 0 30px 80px -40px rgba(0,0,0,0.35);
}
.live-card-top { display: flex; justify-content: space-between; align-items: center; margin-bottom: 18px; }
.live-card-pair {
  display: grid; grid-template-columns: 1fr 80px 1fr;
  align-items: center; gap: 12px; margin-bottom: 14px;
  min-height: 86px;
}
.live-card-left .cat,
.live-card-right .cat { font-family: var(--mono); font-size: 11px; letter-spacing: 0.04em; text-transform: uppercase; color: var(--muted); margin-bottom: 6px; }
.live-card-left .name,
.live-card-right .name { font-size: 22px; font-weight: 500; letter-spacing: -0.015em; line-height: 1.15; }
.live-card-left .sub,
.live-card-right .sub { font-family: var(--mono); font-size: 11px; letter-spacing: 0.04em; text-transform: uppercase; color: var(--muted); margin-top: 4px; }
.live-card-right { text-align: right; }
.live-card-pair .swap { animation: fadeIn .5s ease both; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(4px); } to { opacity: 1; transform: none; } }

.live-card-fields { display: flex; gap: 6px; flex-wrap: wrap; align-items: center; margin-bottom: 14px; min-height: 24px; }
.live-card-fields .lbl { font-family: var(--mono); font-size: 10px; letter-spacing: 0.04em; text-transform: uppercase; color: var(--muted); margin-right: 4px; }
.live-card-fields .chip { font-family: var(--mono); font-size: 10px; letter-spacing: 0.04em; text-transform: uppercase; padding: 4px 8px; border: 1px solid var(--line); }
.live-card-fields .chip.on { background: var(--accent); color: var(--accent-fg); border-color: transparent; }
.live-card-fields .chip.add { border-style: dashed; color: var(--muted); }

.live-card-stats {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 0; margin-top: 14px; padding-top: 14px; border-top: 1px solid var(--line);
}
.live-card-stats .l { font-family: var(--mono); font-size: 10px; letter-spacing: 0.04em; text-transform: uppercase; color: var(--muted); margin-bottom: 6px; }
.live-card-stats .v { font-size: 22px; font-weight: 500; letter-spacing: -0.02em; }

/* ============================================================
   Services
   ============================================================ */

.services {
  padding: 120px 0; background: var(--panel);
  border-top: 1px solid var(--line); border-bottom: 1px solid var(--line);
}
.service-list { margin-top: 40px; }
.service-row {
  display: grid; grid-template-columns: 120px 0.7fr 1.4fr 0.7fr;
  gap: 32px; padding: 36px 0;
  border-bottom: 1px solid var(--line);
  align-items: start; transition: background .3s;
}
.service-row:hover { background: color-mix(in oklab, var(--accent) 6%, transparent); }
.service-row .num { font-family: var(--mono); font-size: 11px; letter-spacing: 0.04em; text-transform: uppercase; color: var(--muted); }
.service-row .title { font-size: 36px; font-weight: 500; letter-spacing: -0.02em; }
.service-row .en { font-family: var(--serif); font-style: italic; color: var(--muted); font-size: 22px; }
.service-row .body { margin: 0; font-size: 15.5px; line-height: 1.75; }
.service-row .stack { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 18px; }
.service-row .stack span {
  font-family: var(--mono); font-size: 10px; letter-spacing: 0.04em; text-transform: uppercase;
  padding: 3px 8px; border: 1px solid var(--line);
}
.service-row .meta { text-align: right; }
.service-row .meta .lbl { font-family: var(--mono); font-size: 11px; letter-spacing: 0.04em; text-transform: uppercase; color: var(--muted); margin-bottom: 6px; }
.service-row .meta .v { font-size: 14px; line-height: 1.5; }
.service-row .meta a { font-family: var(--mono); font-size: 11px; letter-spacing: 0.04em; text-transform: uppercase; margin-top: 16px; display: inline-flex; }

/* ============================================================
   Showcase
   ============================================================ */

.showcase { padding: 120px 0; }
.showcase-grid {
  margin-top: 56px;
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 0;
  border-top: 1px solid var(--line); border-left: 1px solid var(--line);
}
.site-card {
  display: block; padding: 28px 28px 24px;
  border-right: 1px solid var(--line); border-bottom: 1px solid var(--line);
  transition: background .3s; position: relative;
}
.site-card:hover { background: color-mix(in oklab, var(--accent) 8%, transparent); }
.site-thumb {
  aspect-ratio: 16 / 9; position: relative; margin-bottom: 20px; overflow: hidden;
  border: 1px solid color-mix(in oklab, var(--fg) 10%, transparent);
}
.site-thumb .browser-bar {
  position: absolute; top: 0; left: 0; right: 0; height: 14px;
  background: color-mix(in oklab, var(--bg) 70%, transparent);
  display: flex; align-items: center; padding-left: 5px; gap: 3px;
}
.site-thumb .browser-bar span { width: 4px; height: 4px; border-radius: 999px; background: color-mix(in oklab, var(--fg) 30%, transparent); }
.site-thumb .hero-bar { position: absolute; top: 28px; left: 16px; right: 16px; height: 12px; background: color-mix(in oklab, var(--fg) 70%, transparent); }
.site-thumb .sub-bar { position: absolute; top: 46px; left: 16px; width: 55%; height: 6px; background: color-mix(in oklab, var(--fg) 40%, transparent); }
.site-thumb .cards { position: absolute; bottom: 12px; left: 16px; right: 16px; display: grid; grid-template-columns: repeat(3, 1fr); gap: 6px; }
.site-thumb .cards div { height: 28px; background: color-mix(in oklab, var(--bg) 85%, transparent); border: 1px solid color-mix(in oklab, var(--fg) 15%, transparent); }
.site-thumb .idx { position: absolute; top: 22px; right: 12px; font-family: var(--mono); font-size: 9px; letter-spacing: 0.04em; text-transform: uppercase; color: color-mix(in oklab, var(--fg) 60%, transparent); }
.site-card .meta-row { display: flex; justify-content: space-between; align-items: baseline; margin-bottom: 6px; }
.site-card .meta-row span { font-family: var(--mono); font-size: 11px; letter-spacing: 0.04em; text-transform: uppercase; color: var(--muted); }
.site-card .name { font-size: 22px; font-weight: 500; letter-spacing: -0.015em; margin-bottom: 6px; }
.site-card .pair { font-size: 13px; color: var(--muted); margin-bottom: 14px; }
.site-card .footer-row { display: flex; align-items: center; justify-content: space-between; }
.site-card .footer-row .url { font-family: var(--mono); font-size: 10px; letter-spacing: 0.04em; text-transform: uppercase; color: var(--muted); }
.site-card .footer-row .visit { font-family: var(--mono); font-size: 10px; letter-spacing: 0.04em; text-transform: uppercase; }

.showcase-footer {
  margin-top: 24px; display: flex; justify-content: space-between; align-items: baseline;
}

/* ============================================================
   Company
   ============================================================ */

.company { padding: 120px 0; border-top: 1px solid var(--line); }
.company-grid {
  margin-top: 56px; display: grid; grid-template-columns: 1fr 1.2fr;
  gap: 64px; align-items: start;
}
.company-quote {
  font-family: var(--serif); font-style: italic;
  font-size: clamp(28px, 3.4vw, 44px); margin: 0;
  line-height: 1.25; letter-spacing: -0.015em;
}
.company-blurb {
  margin-top: 28px; color: var(--muted);
  font-size: 15.5px; line-height: 1.75; max-width: 460px;
}
.company-table .row {
  display: grid; grid-template-columns: 180px 1fr; gap: 24px;
  padding: 18px 0; border-top: 1px solid var(--line);
}
.company-table .row:last-child { border-bottom: 1px solid var(--line); }
.company-table .row .k { font-family: var(--mono); font-size: 11px; letter-spacing: 0.04em; text-transform: uppercase; color: var(--muted); }
.company-table .row .v { font-size: 15px; }

/* ============================================================
   Contact + Footer
   ============================================================ */

.contact { padding: 140px 0; background: var(--fg); color: var(--bg); }
.contact-grid {
  display: grid; grid-template-columns: 1.4fr 1fr;
  gap: 64px; align-items: end;
}
.contact .kicker {
  font-family: var(--mono); font-size: 11px; letter-spacing: 0.04em; text-transform: uppercase;
  color: color-mix(in oklab, var(--bg) 60%, var(--fg));
}
.contact h2 {
  margin: 20px 0 0;
  font-size: clamp(56px, 8vw, 144px);
  font-weight: 400; letter-spacing: -0.045em; line-height: 0.92;
}
.contact .lead {
  margin: 0; font-size: 16px; line-height: 1.75;
  color: color-mix(in oklab, var(--bg) 70%, var(--fg));
}
.contact .cta-row { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 18px; }
.contact .cta-primary {
  background: var(--accent); color: var(--accent-fg); padding: 14px 22px; font-size: 14px;
}
.contact .cta-secondary {
  border: 1px solid color-mix(in oklab, var(--bg) 30%, var(--fg));
  color: var(--bg); padding: 14px 22px; font-size: 14px;
}

footer.footer { background: var(--fg); color: var(--bg); padding-bottom: 32px; }
footer .divider { height: 1px; background: color-mix(in oklab, var(--bg) 18%, var(--fg)); margin-bottom: 28px; }
footer .cols { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 32px; padding-bottom: 32px; }
footer .company-mark { font-size: 14px; font-weight: 600; }
footer .company-addr { margin-top: 8px; font-family: var(--mono); font-size: 11px; letter-spacing: 0.04em; text-transform: uppercase; color: color-mix(in oklab, var(--bg) 60%, var(--fg)); }
footer h4 { margin: 0 0 12px; font-family: var(--mono); font-size: 11px; letter-spacing: 0.04em; text-transform: uppercase; font-weight: 400; color: color-mix(in oklab, var(--bg) 60%, var(--fg)); }
footer .col-item { font-size: 13px; padding: 4px 0; }
footer .col-item a { color: inherit; text-decoration: none; transition: color 0.2s; }
footer .col-item a:hover { color: var(--accent); }
footer .bottom {
  display: flex; justify-content: space-between; align-items: center;
  border-top: 1px solid color-mix(in oklab, var(--bg) 18%, var(--fg));
  padding-top: 20px;
}
footer .bottom span { font-family: var(--mono); font-size: 11px; letter-spacing: 0.04em; text-transform: uppercase; color: color-mix(in oklab, var(--bg) 60%, var(--fg)); }

/* ============================================================
   Responsive
   ============================================================ */

@media (max-width: 1024px) {
  .bridgia-grid,
  .company-grid,
  .contact-grid { grid-template-columns: 1fr; gap: 48px; }
  .showcase-grid { grid-template-columns: repeat(2, 1fr); }
  .features { grid-template-columns: 1fr; }
  .service-row { grid-template-columns: 80px 1fr; }
  .service-row .meta { text-align: left; }
  footer .cols { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 640px) {
  .wrap { padding: 0 20px; }
  .hero { padding-top: 112px; }
  /* On mobile, .wrap padding shrinks to 20px each side → 40px total */
  .hero h1 { font-size: calc((100vw - 40px) / 12.3); }
  .nav-links { display: none; }
  .showcase-grid { grid-template-columns: 1fr; }
  .section-header { grid-template-columns: 1fr; gap: 8px; }
  .service-row { grid-template-columns: 1fr; }
  footer .cols { grid-template-columns: 1fr; }
  .live-card-pair { grid-template-columns: 1fr; text-align: left; min-height: 0; }
  .live-card-right { text-align: left; }
  .live-card-pair svg.connector { display: none; }
}