/* ============================================
   DEFACTO corporate site
   design: aligned with parent company UPTY (upty.jp)
   white base / cyan #00A0C2 accent / gothic type / pill buttons
   ============================================ */

:root {
  --white: #ffffff;
  --ink: #111417;          /* main text */
  --gray: #6b7378;         /* secondary text */
  --line: #e3e7e9;         /* hairlines */
  --alt-bg: #f5f7f8;       /* alternate section background */
  --cyan: #00a0c2;         /* UPTY brand cyan */
  --dark: #0d1b26;         /* hero / footer dark navy */
  --dark-2: #143044;
  --font-body: Arial, "Hiragino Sans", "Yu Gothic Medium", Meiryo, sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  background: var(--white);
  color: var(--ink);
  line-height: 1.9;
  font-size: 15px;
  -webkit-font-smoothing: antialiased;
}

.num { font-family: Arial, Helvetica, sans-serif; letter-spacing: 0.02em; }

a:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}

/* ---- header ---- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: var(--white);
  border-bottom: 1px solid var(--line);
}

.header-inner {
  max-width: 1040px;
  margin: 0 auto;
  padding: 16px 24px;
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
}

.brand {
  text-decoration: none;
  display: flex;
  align-items: baseline;
  gap: 10px;
}

.brand-en {
  font-family: Arial, Helvetica, sans-serif;
  font-weight: 700;
  font-size: 21px;
  letter-spacing: 0.12em;
  color: var(--cyan);
}

.brand-ja {
  font-size: 11px;
  color: var(--gray);
  letter-spacing: 0.1em;
}

.site-nav { display: flex; gap: 24px; }

.site-nav a {
  text-decoration: none;
  color: var(--ink);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.05em;
  transition: color 0.2s;
}

.site-nav a:hover,
.site-nav a:focus-visible {
  color: var(--cyan);
}

/* ---- hero ---- */
.hero {
  background:
    radial-gradient(ellipse 80% 60% at 70% 20%, rgba(0, 160, 194, 0.18), transparent 60%),
    linear-gradient(rgba(13, 27, 38, 0.82), rgba(13, 27, 38, 0.88)),
    url("img/hero.jpg") center 62% / cover no-repeat,
    var(--dark);
  color: var(--white);
  text-align: center;
  padding: 96px 24px 88px;
}

.hero-inner { max-width: 1040px; margin: 0 auto; }

.hero-eyebrow {
  font-family: Arial, Helvetica, sans-serif;
  font-size: 12px;
  letter-spacing: 0.26em;
  color: rgba(255, 255, 255, 0.66);
  margin-bottom: 22px;
}

.hero-title {
  font-size: clamp(28px, 4.6vw, 44px);
  font-weight: 700;
  line-height: 1.6;
  letter-spacing: 0.04em;
  margin-bottom: 18px;
}

.hero-lead {
  font-size: 15px;
  color: rgba(255, 255, 255, 0.85);
  margin-bottom: 56px;
}

.fact-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  max-width: 920px;
  margin: 0 auto;
}

.fact-card {
  background: var(--white);
  color: var(--ink);
  border-radius: 14px;
  padding: 26px 20px 22px;
  box-shadow: 0 8px 28px rgba(0, 0, 0, 0.25);
}

.fact-card h2 {
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.06em;
  margin-bottom: 8px;
}

.fact-value {
  font-size: clamp(24px, 2.8vw, 32px);
  font-weight: 700;
  color: var(--cyan);
  line-height: 1.3;
  margin-bottom: 8px;
}

.fact-note { font-size: 12px; color: var(--gray); line-height: 1.6; }

/* ---- sections ---- */
.section {
  padding: 80px 24px;
}

.section-alt { background: var(--alt-bg); }

.section > * { max-width: 840px; margin-left: auto; margin-right: auto; }

.section-head {
  text-align: center;
  margin-bottom: 36px;
}

.section-head h2 {
  font-size: 24px;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--cyan);
}

.section-en {
  font-family: Arial, Helvetica, sans-serif;
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--gray);
  margin-top: 4px;
}

.section-lead {
  margin-bottom: 44px;
}

.section-lead.center { text-align: center; }

/* section photo */
.section-photo {
  display: block;
  width: 100%;
  border-radius: 16px;
  margin-bottom: 44px;
}

.photo-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-bottom: 44px;
}

.photo-grid img {
  display: block;
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border-radius: 16px;
}

/* timeline */
.timeline {
  list-style: none;
  border-left: 2px solid var(--line);
  margin-left: 6px;
  max-width: 720px;
}

.timeline-item {
  position: relative;
  display: flex;
  gap: 24px;
  padding: 0 0 32px 28px;
}

.timeline-item:last-child { padding-bottom: 4px; }

.timeline-item::before {
  content: "";
  position: absolute;
  left: -7px;
  top: 10px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--white);
  border: 3px solid var(--cyan);
}

.timeline-date {
  font-weight: 700;
  font-size: 15px;
  color: var(--cyan);
  width: 84px;
  flex-shrink: 0;
}

.timeline-item h3 {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 4px;
}

.timeline-item p { color: var(--gray); font-size: 14px; max-width: 560px; }

/* staff */
.staff-grid {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  max-width: 760px;
}

.staff-card {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 16px;
  overflow: hidden;
}

.staff-card img {
  display: block;
  width: 100%;
  aspect-ratio: 3 / 4;
  object-fit: cover;
}

.staff-body {
  padding: 12px 14px 14px;
  text-align: center;
}

.staff-card h3 {
  font-size: 14.5px;
  font-weight: 600;
}

/* services */
.service-grid {
  list-style: none;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.service-card {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 30px 30px 26px;
}

.service-mark {
  display: block;
  width: 36px;
  height: 6px;
  border-radius: 3px;
  background: var(--cyan);
  margin-bottom: 16px;
}

.service-card h3 {
  font-size: 17px;
  font-weight: 600;
  margin-bottom: 8px;
}

.service-card p { font-size: 13.5px; color: var(--gray); }

.note {
  margin-top: 24px;
  font-size: 12px;
  color: var(--gray);
}

.note.center { text-align: center; }

/* news */
.news-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.news-card {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 26px 28px 28px;
}

.news-card h3 {
  font-size: 17px;
  font-weight: 600;
  margin-bottom: 16px;
}

.placeholder-box {
  border: 1px dashed var(--line);
  border-radius: 12px;
  background: var(--alt-bg);
  padding: 36px 20px;
  text-align: center;
}

.placeholder-box p { font-size: 13px; color: var(--gray); }

/* instagram */
.insta-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 14px;
  max-width: 840px;
}

.insta-tile {
  aspect-ratio: 1 / 1;
  border-radius: 12px;
  border: 1px dashed var(--line);
  background: var(--alt-bg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  color: var(--gray);
}

.btn-row { text-align: center; margin-top: 32px; }

.btn-pill {
  display: inline-block;
  background: var(--cyan);
  color: var(--white);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-decoration: none;
  border-radius: 999px;
  padding: 13px 44px;
  transition: opacity 0.2s;
}

.btn-pill:hover, .btn-pill:focus-visible { opacity: 0.85; }

.btn-pill.is-disabled {
  background: #9aa6ad;
  cursor: default;
}

/* company table */
.company-table {
  max-width: 720px;
  border-top: 1px solid var(--line);
}

.company-table > div {
  display: flex;
  border-bottom: 1px solid var(--line);
}

.company-table dt {
  width: 160px;
  flex-shrink: 0;
  padding: 16px 20px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--cyan);
}

.company-table dd { padding: 16px 20px; font-size: 14px; }

/* access */
.access-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.access-card {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 28px 30px;
}

.access-label {
  display: inline-block;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.14em;
  color: var(--white);
  background: var(--cyan);
  border-radius: 999px;
  padding: 3px 14px;
  margin-bottom: 14px;
}

.access-card h3 {
  font-size: 19px;
  font-weight: 600;
  margin-bottom: 8px;
}

.access-card p { font-size: 14px; color: var(--gray); }

/* map */
.map {
  display: block;
  width: 100%;
  height: 380px;
  border: 0;
  border-radius: 16px;
  margin-top: 24px;
}

/* contact band */
.contact-band {
  background:
    radial-gradient(ellipse 70% 80% at 30% 100%, rgba(0, 160, 194, 0.2), transparent 60%),
    var(--dark);
  color: var(--white);
  text-align: center;
  padding: 72px 24px;
}

.contact-band h2 {
  font-size: 24px;
  font-weight: 600;
  letter-spacing: 0.08em;
  margin-bottom: 16px;
}

.contact-en {
  font-family: Arial, Helvetica, sans-serif;
  font-size: 16px;
  font-weight: 400;
  color: rgba(255, 255, 255, 0.6);
}

.contact-band p { color: rgba(255, 255, 255, 0.85); font-size: 14px; }

.contact-btns {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 16px;
  margin-top: 28px;
}

/* footer */
.site-footer {
  background: #0a141d;
  color: #eceef0;
}

.footer-inner {
  max-width: 1040px;
  margin: 0 auto;
  padding: 32px 24px;
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 16px;
}

.site-footer .brand-en { color: var(--white); }

.site-footer p {
  font-size: 12px;
  color: #8b959e;
  font-family: Arial, Helvetica, sans-serif;
  letter-spacing: 0.04em;
}

/* reveal on scroll */
.reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: none;
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
}

/* ---- responsive ---- */
.sp-only { display: none; }

@media (max-width: 720px) {
  .pc-only { display: none; }
  .sp-only { display: inline; }

  .header-inner { flex-direction: column; gap: 6px; padding: 12px 20px; }
  .site-nav { gap: 16px; flex-wrap: wrap; }

  .hero { padding: 64px 20px 56px; }
  .hero-lead { margin-bottom: 40px; }

  .fact-cards { grid-template-columns: 1fr; gap: 16px; max-width: 420px; }
  .fact-card { padding: 22px 20px 18px; }

  .section { padding: 56px 20px; }

  .service-grid { grid-template-columns: 1fr; }
  .access-grid { grid-template-columns: 1fr; }
  .staff-grid { grid-template-columns: 1fr; max-width: 340px; margin-left: auto; margin-right: auto; }
  .news-grid { grid-template-columns: 1fr; }
  .insta-grid { grid-template-columns: repeat(3, 1fr); }
  .photo-grid { grid-template-columns: 1fr; }
  .map { height: 280px; }

  .company-table > div { flex-direction: column; }
  .company-table dt { width: auto; padding: 10px 14px 0; }
  .company-table dd { padding: 2px 14px 12px; }

  .footer-inner { flex-direction: column; gap: 4px; align-items: flex-start; }
}