/* ===== JT Imagine — base styles =====================================
   Concept: a sketch (dashed, light) resolving into something solid.
   Ink + paper + one cyan accent, matching the logo.
   ==================================================================== */

:root {
  --ink: #151515;
  --ink-2: #4a4a4a;
  --muted: #8a8a86;
  --paper: #fcfcfb;
  --paper-2: #f4f4f1;
  --line: #e3e3df;
  --line-strong: #c9c9c4;
  --cyan: #19aee3;
  --cyan-soft: rgba(25, 174, 227, 0.10);

  --font: "Jost", "Avenir Next", "Avenir", "Helvetica Neue", "Noto Sans JP", sans-serif;
  --font-ja: "Noto Sans JP", "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Jost", sans-serif;

  --max: 1180px;
  --gutter: clamp(20px, 5vw, 56px);
  --radius: 6px;
  --ease: cubic-bezier(.22,.61,.36,1);
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font);
  font-weight: 300;
  font-size: 17px;
  line-height: 1.65;
  color: var(--ink);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
  min-height: 100vh; display: flex; flex-direction: column;
}
main { flex: 1; }
html[lang="ja"] body { font-family: var(--font-ja); font-weight: 300; letter-spacing: 0.02em; }

img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }

h1, h2, h3, h4 { font-weight: 300; line-height: 1.15; margin: 0; letter-spacing: -0.01em; }
p { margin: 0; }
.muted { color: var(--muted); }
.accent { color: var(--cyan); }

.wrap { max-width: var(--max); margin: 0 auto; padding: 0 var(--gutter); }

/* Placeholder text style — so it's obvious what's still copy-to-do */
.ph { color: var(--muted); }
.ph::before { content: "[ "; color: var(--line-strong); }
.ph::after  { content: " ]"; color: var(--line-strong); }

/* ---------- Header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(252,252,251,.85);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.site-header .wrap {
  display: flex; align-items: center; gap: 32px;
  height: 76px;
}

.brand {
  margin-right: auto; display: block;
  font-family: var(--font); font-weight: 400; font-size: 24px; letter-spacing: 0.02em; line-height: 1; color: var(--ink);
}
.brand i { font-style: normal; color: var(--cyan); }

.nav { display: flex; gap: clamp(18px, 3vw, 40px); }
.nav a {
  position: relative; font-size: 15px; letter-spacing: 0.08em; text-transform: uppercase;
  padding: 6px 0; color: var(--ink-2);
}
.nav a::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 1px;
  background: var(--cyan); transform: scaleX(0); transform-origin: left;
  transition: transform .3s var(--ease);
}
.nav a:hover::after, .nav a[aria-current="page"]::after { transform: scaleX(1); }
.nav a[aria-current="page"] { color: var(--ink); }

.lang {
  display: inline-flex; border: 1px solid var(--line-strong); border-radius: 999px; padding: 3px;
}
.lang button {
  font-size: 12px; letter-spacing: 0.12em; padding: 5px 12px; border-radius: 999px; color: var(--muted);
  transition: background .25s, color .25s;
}
.lang button[aria-pressed="true"] { background: var(--ink); color: #fff; }

.menu-btn { display: none; width: 40px; height: 40px; }
.menu-btn span { display: block; height: 1px; background: var(--ink); margin: 6px auto; width: 22px; }

@media (max-width: 760px) {
  .site-header .wrap { gap: 16px; }
  .brand { font-size: 21px; }
  .nav {
    position: absolute; left: 0; right: 0; top: 76px; flex-direction: column; gap: 0;
    background: var(--paper); border-bottom: 1px solid var(--line); padding: 8px var(--gutter) 16px;
    display: none;
  }
  .nav.open { display: flex; }
  .nav a { padding: 12px 0; border-bottom: 1px dashed var(--line); }
  .menu-btn { display: block; }
}

/* ---------- Hero ---------- */
.hero { padding: clamp(28px, 5vw, 56px) 0 0; }

.placeholder {
  position: relative;
  border: 1px dashed var(--line-strong);
  border-radius: var(--radius);
  background:
    linear-gradient(var(--line) 1px, transparent 1px) 0 0 / 48px 48px,
    linear-gradient(90deg, var(--line) 1px, transparent 1px) 0 0 / 48px 48px,
    var(--paper-2);
  display: grid; place-items: center;
  color: var(--muted); font-size: 13px; letter-spacing: 0.14em; text-transform: uppercase;
  overflow: hidden;
}
.placeholder::after {
  /* solid cyan corner — the "reality" resolving out of the sketch */
  content: ""; position: absolute; right: -1px; bottom: -1px; width: 96px; height: 96px;
  border-right: 2px solid var(--cyan); border-bottom: 2px solid var(--cyan);
  border-radius: 0 0 var(--radius) 0;
}
.hero-visual { width: 100%; aspect-ratio: 21 / 8; }
@media (max-width: 760px) { .hero-visual { aspect-ratio: 4 / 3; } }

.tagline-block { padding: clamp(36px, 6vw, 72px) 0 clamp(28px, 4vw, 48px); }
.tagline {
  font-size: clamp(38px, 6.4vw, 78px);
  font-weight: 300; letter-spacing: -0.02em; line-height: 1.05;
  max-width: 14ch;
}
.tagline .accent { position: relative; white-space: nowrap; }
.tagline .accent::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: 0.04em; height: 2px;
  background: repeating-linear-gradient(90deg, var(--cyan) 0 8px, transparent 8px 14px);
  animation: solidify 1.6s var(--ease) .4s forwards;
}
@keyframes solidify { to { background: var(--cyan); } }

.lede { margin-top: 22px; max-width: 58ch; font-size: clamp(17px, 1.5vw, 20px); color: var(--ink-2); }

/* ---------- Section headings ---------- */
.section { padding: clamp(40px, 6vw, 80px) 0; }
.section + .section { border-top: 1px solid var(--line); }
.section-head { display: flex; align-items: baseline; gap: 18px; margin-bottom: clamp(24px, 3vw, 40px); }
.eyebrow { font-size: 12px; letter-spacing: 0.18em; text-transform: uppercase; color: var(--cyan); }
.section-title { font-size: clamp(26px, 3vw, 36px); }
.section-head .rule { flex: 1; height: 1px; background: var(--line); }

/* ---------- Services grid (home) ---------- */
.svc-grid {
  display: grid; gap: 16px;
  grid-template-columns: repeat(3, 1fr);
}
@media (max-width: 900px) { .svc-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .svc-grid { grid-template-columns: 1fr; } }

.svc {
  position: relative; text-align: left; width: 100%;
  padding: 24px 24px 22px; min-height: 150px;
  border: 1px dashed var(--line-strong); border-radius: var(--radius);
  background: var(--paper);
  display: flex; flex-direction: column; gap: 10px;
  transition: border-color .3s var(--ease), transform .3s var(--ease), box-shadow .3s var(--ease), background .3s;
}
.svc:hover { border-style: solid; border-color: var(--ink); transform: translateY(-2px); }
.svc[aria-expanded="true"] {
  border-style: solid; border-color: var(--cyan); background: #fff;
  box-shadow: 0 12px 30px -18px rgba(25,174,227,.5);
}
.svc .num { font-size: 12px; letter-spacing: 0.16em; color: var(--muted); }
.svc[aria-expanded="true"] .num { color: var(--cyan); }
.svc .name { font-size: 20px; font-weight: 400; letter-spacing: 0; }
.svc .blurb { font-size: 14px; color: var(--muted); }
.svc .arrow {
  position: absolute; right: 20px; top: 22px; width: 22px; height: 22px;
  color: var(--line-strong); transition: color .3s, transform .35s var(--ease);
}
.svc:hover .arrow { color: var(--ink); }
.svc[aria-expanded="true"] .arrow { color: var(--cyan); transform: rotate(45deg); }

.svc-detail {
  overflow: hidden; height: 0; opacity: 0;
  transition: height .45s var(--ease), opacity .35s var(--ease);
}
.svc-detail.open { opacity: 1; }
.svc-detail-inner {
  margin-top: 16px; padding: clamp(24px, 3vw, 40px);
  border: 1px solid var(--cyan); border-radius: var(--radius);
  background: #fff;
  display: grid; grid-template-columns: 1.2fr .8fr; gap: 40px;
}
@media (max-width: 760px) { .svc-detail-inner { grid-template-columns: 1fr; gap: 24px; } }
.svc-detail h3 { font-size: 26px; margin-bottom: 10px; }
.svc-detail ul { margin: 0; padding: 0; list-style: none; }
.svc-detail li { padding: 8px 0; border-bottom: 1px dashed var(--line); color: var(--ink-2); font-size: 15px; }
.svc-detail li::before { content: "—"; color: var(--cyan); margin-right: 10px; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 12px 22px; border-radius: 999px;
  font-size: 14px; letter-spacing: 0.1em; text-transform: uppercase;
  border: 1px solid var(--ink); color: var(--ink);
  transition: background .25s, color .25s, border-color .25s, transform .25s var(--ease);
}
.btn:hover { background: var(--ink); color: #fff; transform: translateY(-1px); }
.btn-accent { border-color: var(--cyan); color: var(--cyan); }
.btn-accent:hover { background: var(--cyan); color: #fff; }
.btn-link { font-size: 14px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--cyan); display: inline-flex; gap: 8px; align-items: center; }
.btn-link:hover { text-decoration: underline; text-underline-offset: 5px; }

/* ---------- Footer ---------- */
.site-footer { border-top: 1px solid var(--line); margin-top: clamp(40px, 6vw, 80px); }
.site-footer .wrap {
  display: flex; align-items: center; justify-content: space-between; gap: 20px;
  min-height: 96px; padding-top: 16px; padding-bottom: 16px;
}
.copy { font-size: 13px; letter-spacing: 0.06em; color: var(--muted); }
.copy strong { font-weight: 400; color: var(--ink-2); }

/* ---------- Inner pages ---------- */
.page-head { padding: clamp(40px, 7vw, 90px) 0 clamp(24px, 4vw, 48px); }
.page-head h1 { font-size: clamp(38px, 5.5vw, 64px); }
.page-head .lede { margin-top: 16px; }

.stack { display: grid; gap: clamp(28px, 4vw, 48px); }

.block {
  display: grid; grid-template-columns: 240px 1fr; gap: clamp(20px, 4vw, 56px);
  padding: clamp(28px, 4vw, 48px) 0; border-top: 1px solid var(--line);
}
.block:first-child { border-top: 0; }
.block .label { display: flex; flex-direction: column; gap: 6px; }
.block .label .num { font-size: 12px; letter-spacing: 0.16em; color: var(--cyan); }
.block .label h2 { font-size: clamp(24px, 2.6vw, 32px); }
.block .body { max-width: 66ch; display: grid; gap: 14px; color: var(--ink-2); }
@media (max-width: 760px) { .block { grid-template-columns: 1fr; gap: 16px; } }

.tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 6px; }
.tag { font-size: 13px; letter-spacing: 0.04em; padding: 5px 12px; border: 1px dashed var(--line-strong); border-radius: 999px; color: var(--ink-2); }

/* About profile */
.profile { display: grid; grid-template-columns: 220px 1fr; gap: clamp(24px, 4vw, 56px); align-items: start; }
.avatar { width: 220px; height: 220px; max-width: 100%; border-radius: 50%; object-fit: cover; display: block; border: 1px solid var(--line); }
@media (max-width: 760px) { .profile { grid-template-columns: 1fr; } .avatar { width: 160px; height: 160px; } }

/* Products */
.products { display: grid; gap: clamp(28px, 4vw, 48px); }
.product {
  display: grid; grid-template-columns: 1.1fr .9fr; gap: clamp(24px, 4vw, 56px); align-items: center;
  padding: clamp(28px, 4vw, 48px) 0; border-top: 1px solid var(--line);
}
.product:first-child { border-top: 0; }
.product:nth-child(even) .shot { order: 2; }
.shot { aspect-ratio: 16/10; border-radius: var(--radius); }
.product h2 { font-size: clamp(26px, 3vw, 36px); }
.product .body { display: grid; gap: 14px; color: var(--ink-2); }
.product .url { font-size: 13px; letter-spacing: 0.08em; color: var(--muted); text-transform: uppercase; }
@media (max-width: 760px) { .product { grid-template-columns: 1fr; } .product:nth-child(even) .shot { order: 0; } }

/* Contact */
.contact { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(28px, 5vw, 72px); align-items: start; }
@media (max-width: 800px) { .contact { grid-template-columns: 1fr; } }
.form { display: grid; gap: 18px; }
.field { display: grid; gap: 6px; }
.field label { font-size: 12px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--muted); }
.field input, .field textarea {
  font: inherit; color: var(--ink); background: transparent;
  border: 0; border-bottom: 1px dashed var(--line-strong); padding: 10px 0;
  outline: none; transition: border-color .25s;
  border-radius: 0;
}
.field textarea { min-height: 140px; resize: vertical; }
.field input:focus, .field textarea:focus { border-bottom: 1px solid var(--cyan); }
.contact-side { display: grid; gap: 28px; }
.contact-side .big { font-size: clamp(22px, 2.4vw, 30px); }
.contact-side .big a { border-bottom: 1px solid var(--cyan); }
.note { font-size: 14px; color: var(--muted); }

/* Reveal on scroll (subtle) */
.reveal { opacity: 0; transform: translateY(12px); transition: opacity .7s var(--ease), transform .7s var(--ease); }
.reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  .tagline .accent::after { animation: none; background: var(--cyan); }
}

/* Small screens: let section heads wrap, drop the hint */
@media (max-width: 560px) {
  .section-head { flex-wrap: wrap; row-gap: 6px; }
  .section-head .rule { flex-basis: 100%; order: 3; }
  .section-head > p.muted { display: none; }
}

/* Product screenshots */
.shot-frame { display: block; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; background: #fff;
  box-shadow: 0 24px 48px -32px rgba(0,0,0,.35); transition: transform .35s var(--ease), box-shadow .35s var(--ease), border-color .3s; }
.shot-frame img { display: block; width: 100%; height: auto; }
.shot-frame:hover { transform: translateY(-4px); border-color: var(--cyan); box-shadow: 0 30px 56px -30px rgba(25,174,227,.45); }
.product-tag { font-size: 19px; color: var(--ink); }

/* Profile links (About) */
.links { display: flex; flex-wrap: wrap; gap: 8px 22px; margin-top: 2px; }
.links a { display: inline-flex; align-items: center; gap: 8px; font-size: 14px; letter-spacing: .04em; color: var(--ink-2); border-bottom: 1px solid transparent; transition: color .2s, border-color .2s; }
.links a:hover { color: var(--cyan); border-bottom-color: var(--cyan); }
.links svg { width: 16px; height: 16px; }

/* Footer icon links */
.foot-links { display: inline-flex; align-items: center; gap: 14px; }
.foot-icon { display: inline-grid; place-items: center; width: 40px; height: 40px; border-radius: 50%; border: 1px solid var(--line-strong); color: var(--ink-2); transition: color .2s, border-color .2s, transform .25s var(--ease); }
.foot-icon svg { width: 16px; height: 16px; }
.foot-icon:hover { color: var(--cyan); border-color: var(--cyan); transform: translateY(-1px); }