/* a.d.p — minimal stylesheet */
:root {
  --black: #111;
  --gray: #666;
  --line: #e5e5e5;
  --bg: #fff;
  --max: 1080px;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
body {
  font-family: "Helvetica Neue", Arial, "Hiragino Kaku Gothic ProN", "Hiragino Sans", Meiryo, sans-serif;
  color: var(--black);
  background: var(--bg);
  line-height: 1.9;
  font-size: 15px;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
main { max-width: var(--max); margin: 0 auto; padding: 0 24px; }

/* header */
.site-header {
  max-width: var(--max);
  margin: 0 auto;
  padding: 28px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}
.logo { font-size: 22px; font-weight: 700; letter-spacing: .02em; }
.site-header nav { display: flex; align-items: center; gap: 28px; flex-wrap: wrap; }
.site-header nav a { font-size: 14px; color: var(--black); }
.site-header nav a:hover { opacity: .5; }

/* CTA button */
.cta-btn {
  background: var(--black);
  color: #fff !important;
  padding: 10px 20px;
  border-radius: 2px;
  font-size: 13px;
  border: none;
  cursor: pointer;
  display: inline-block;
  transition: opacity .2s;
}
.cta-btn:hover { opacity: .75; }
.cta-btn.large { padding: 14px 36px; font-size: 15px; }

/* hero */
.hero { padding: 64px 0 40px; }
.hero h1 {
  font-size: clamp(44px, 9vw, 96px);
  font-weight: 700;
  letter-spacing: -.02em;
  line-height: 1.1;
}
.tagline { margin: 20px 0 40px; font-size: 16px; color: var(--gray); }
.hero-img { width: 100%; max-height: 640px; object-fit: cover; }

/* philosophy */
.philosophy { max-width: 640px; padding: 56px 0; }
.philosophy p { margin-bottom: 1.6em; font-size: 14px; }
.position { font-size: 16px !important; font-weight: 700; margin-bottom: 2.4em !important; }

/* contact form states */
.privacy-note { font-size: 12px; color: var(--gray); }
.privacy-note a { border-bottom: 1px solid var(--gray); }
.sent { font-size: 15px; line-height: 2.2; padding: 32px 0; }
.policy-date { color: var(--gray); font-size: 13px; margin-top: 40px; }

/* sections */
h1 { font-size: 32px; margin: 56px 0 32px; font-weight: 700; }
h2 { font-size: 20px; margin: 48px 0 20px; font-weight: 700; }
h2.cat { border-top: 1px solid var(--line); padding-top: 32px; }
.lead { max-width: 640px; color: var(--gray); margin-bottom: 24px; }
.prose { max-width: 640px; }
.prose p { margin-bottom: 1.6em; }

/* work grid */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 32px 24px;
  margin: 24px 0 48px;
}
.card img { aspect-ratio: 4/3; object-fit: cover; width: 100%; }
.card span { display: block; margin-top: 10px; font-size: 14px; }
.card .cat-label { font-size: 11px; color: var(--gray); letter-spacing: .12em; margin-top: 8px; }
.card .title-label { display: none; }
#work-grid.show-titles .cat-label { display: none; }
#work-grid.show-titles .title-label { display: block; }
.card:hover img { opacity: .85; }
.more { margin: 0 0 48px; }
.more a, .backlink a { border-bottom: 1px solid var(--black); padding-bottom: 2px; }

/* project page */
.project h1 { margin-top: 48px; }
.project-text { max-width: 640px; margin-bottom: 40px; }
.project-text p { margin-bottom: 1.4em; font-size: 14px; }
.gallery { display: flex; flex-direction: column; gap: 24px; margin-bottom: 48px; }
.gallery figure { margin: 0; }
.backlink { margin: 32px 0 64px; }

/* office table */
table.office { border-collapse: collapse; width: 100%; max-width: 640px; margin-bottom: 56px; }
table.office th, table.office td { text-align: left; padding: 14px 16px 14px 0; border-bottom: 1px solid var(--line); vertical-align: top; font-weight: 400; }
table.office th { width: 130px; color: var(--gray); font-size: 13px; white-space: nowrap; }

/* flow */
ol.flow { max-width: 640px; counter-reset: step; list-style: none; margin-bottom: 40px; }
ol.flow li { counter-increment: step; padding: 22px 0 22px 64px; position: relative; border-bottom: 1px solid var(--line); }
ol.flow li::before {
  content: counter(step, decimal-leading-zero);
  position: absolute; left: 0; top: 26px;
  font-size: 20px; font-weight: 700; color: var(--gray);
}
ol.flow h3 { font-size: 16px; margin-bottom: 6px; }
ol.flow p { font-size: 14px; color: #333; }
.placeholder { color: #b00; background: #fff6f6; padding: 12px 16px; max-width: 640px; font-size: 13px; }

/* FAQ */
dl.faq { max-width: 640px; margin-bottom: 64px; }
dl.faq dt { font-weight: 700; margin-top: 24px; }
dl.faq dd { margin: 6px 0 0; color: #333; }

/* contact form */
.reassure { margin: 16px 0 8px 1.2em; }
.reassure li { margin-bottom: 6px; }
.contact-form { max-width: 560px; margin: 40px 0 80px; display: flex; flex-direction: column; gap: 22px; }
.contact-form label { display: flex; flex-direction: column; gap: 8px; font-size: 14px; font-weight: 700; }
.contact-form input, .contact-form select, .contact-form textarea {
  font: inherit; font-weight: 400;
  padding: 12px 14px;
  border: 1px solid #ccc;
  border-radius: 2px;
  background: #fff;
}
.contact-form input:focus, .contact-form select:focus, .contact-form textarea:focus {
  outline: 2px solid var(--black); border-color: var(--black);
}
.req { color: #b00; font-size: 11px; font-weight: 400; margin-left: 6px; }

/* CTA section */
.cta-section {
  border-top: 1px solid var(--line);
  margin-top: 48px;
  padding: 72px 24px;
  text-align: center;
}
.cta-section h2 { margin: 0 0 16px; font-size: 22px; }
.cta-section p { color: var(--gray); margin-bottom: 32px; font-size: 14px; }

/* footer */
.site-footer {
  border-top: 1px solid var(--line);
  padding: 40px 24px 56px;
  text-align: center;
  font-size: 12px;
  color: var(--gray);
  line-height: 2;
}
.site-footer a { border-bottom: 1px solid var(--gray); }
.copy { margin-top: 16px; }

/* ヘッダーCTA: PCはテキストボタン・モバイルは封筒アイコンのみ */
.site-header .cta-btn .mail-icon { display: none; }

@media (max-width: 640px) {
  .site-header { padding: 20px 16px; }
  .site-header nav { gap: 16px; }
  .site-header .cta-btn { background: none; color: var(--black) !important; padding: 0; border-radius: 0; }
  .site-header .cta-btn:hover { opacity: .5; }
  .site-header .cta-btn .cta-text { display: none; }
  .site-header .cta-btn .mail-icon { display: block; }
  main { padding: 0 16px; }
  .hero { padding: 40px 0 24px; }
}

/* portrait / signature */
.portrait { max-width: 468px; margin: 8px 0 56px; }
.portrait img { width: 100%; display: block; }
.portrait figcaption { font-size: 12px; color: var(--gray); margin-top: 10px; letter-spacing: .06em; }
.signature { display: flex; align-items: center; gap: 14px; margin-top: 16px; }
.signature img { width: 56px; height: 56px; border-radius: 50%; object-fit: cover; }
.signature span { font-size: 13px; color: var(--gray); line-height: 1.7; letter-spacing: .04em; }

/* media list */
.media-list { color: var(--gray); font-size: 14px; letter-spacing: .05em; margin-bottom: 56px; }

/* about profile */
.profile { max-width: 640px; margin: 8px 0 48px; }
.profile-name { font-size: 17px; font-weight: 700; letter-spacing: .08em; }
.profile-name span { font-weight: 400; color: var(--gray); font-size: 13px; margin-left: 12px; letter-spacing: .1em; }
.profile-title { color: var(--gray); font-size: 13px; margin-top: 4px; }
ul.career { margin-top: 16px; list-style: none; padding: 0; }
ul.career li { font-size: 14px; line-height: 2.1; }
ul.career li span { display: inline-block; width: 52px; color: var(--gray); font-size: 13px; }
ul.members { list-style: none; padding: 0; margin-bottom: 56px; }
ul.members li { font-size: 14px; line-height: 2.1; letter-spacing: .06em; }

/* project subtitle / press */
.project .subtitle { color: var(--gray); font-size: 13px; letter-spacing: .12em; margin: -18px 0 32px; }
aside.press { max-width: 640px; border: 1px solid var(--line); padding: 24px 28px; margin: 0 0 48px; }
aside.press h2 { font-size: 15px; margin-bottom: 12px; }
aside.press p { font-size: 14px; margin-bottom: 10px; }
aside.press p:last-child { margin-bottom: 0; }

/* work filters */
.filters { display: flex; gap: 8px; margin-bottom: 36px; flex-wrap: wrap; }
.filter-btn { border: 1px solid var(--line); background: none; padding: 7px 20px; font-size: 13px; cursor: pointer; letter-spacing: .08em; color: var(--gray); font-family: inherit; }
.filter-btn:hover { border-color: var(--black); color: var(--black); }
.filter-btn.active { background: var(--black); color: #fff; border-color: var(--black); }