/* ═══════════════════════════════════════════════════════════════
   Sotatek Japan — Services Embedded (組み込み開発)
   Reuses shared patterns from offshore-dx & cloud service pages
   ═══════════════════════════════════════════════════════════════ */

html, body { margin:0; padding:0; background:#fff; }
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

/* ═══ SECTIONS ═══ */
.sect { padding: 90px 40px; }
.sect.tint { background: var(--sjp-bg-gray, #F8FAFC); }
.sect-inner-wide { max-width: 1180px; margin: 0 auto; }
.sect-head {
  text-align: center; margin-bottom: 48px;
  display: flex; flex-direction: column; align-items: center;
}
.sect-eye {
  font-family: var(--sjp-font-latin, 'Inter', sans-serif);
  font-size: 12.5px; font-weight: 700; letter-spacing: .24em;
  color: var(--sjp-accent-blue, #3B82F6); text-transform: uppercase;
  margin-bottom: 14px;
}
.sect-title {
  font-family: var(--sjp-font-jp, 'Noto Sans JP', sans-serif); font-weight: 700;
  font-size: clamp(26px, 2.6vw, 36px); line-height: 1.25; letter-spacing: -.005em;
  color: var(--sjp-ink-hi, #0B1220); margin: 0 0 14px;
}
.sect-lead {
  font-family: var(--sjp-font-jp, 'Noto Sans JP', sans-serif);
  font-size: 14px; line-height: 1.85;
  color: var(--sjp-text-body, #3F5069); max-width: 720px;
  margin: 18px auto 0; text-align: center;
}
.sect-foot-link { text-align: center; margin-top: 36px; }

/* ═══ PAIN POINTS (ds-grid) ═══ */
.ds-grid {
  display: grid; gap: 16px; padding: 16px 0;
  border-top: 1px solid var(--sjp-border-default, #E2E8F0);
  border-bottom: 1px solid var(--sjp-border-default, #E2E8F0);
}
.col-2 { grid-template-columns: repeat(2, 1fr); }
.ds-card {
  background: transparent; border: none; border-radius: 0;
  padding: 28px 26px 30px;
  transition: background-color .25s ease, box-shadow .25s ease;
  position: relative; display: flex; flex-direction: column;
}
.ds-card::after {
  content: ""; position: absolute;
  left: 0; right: 0; bottom: 0;
  height: 3px; background: var(--sjp-primary-blue, #1E40AF);
  transform: scaleX(0); transform-origin: left center;
  transition: transform .35s cubic-bezier(.2,.8,.2,1);
}
.ds-card:hover { background: #EFF6FF; box-shadow: inset 0 0 0 1px #BFDBFE; }
.ds-card:hover::after { transform: scaleX(1); }
.ds-card:hover .ds-title { color: var(--sjp-primary-blue, #1E40AF); }
.ds-ico {
  width: 44px; height: 44px; border-radius: 10px;
  background: #EFF6FF; color: var(--sjp-primary-blue, #1E40AF);
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 18px; border: 1px solid #DBEAFE;
}
.ds-ico svg { width: 22px; height: 22px; }
.ds-title {
  font-family: var(--sjp-font-jp, 'Noto Sans JP', sans-serif); font-weight: 700;
  font-size: 16px; line-height: 1.45;
  color: var(--sjp-ink-hi, #0B1220);
  margin: 0 0 10px; letter-spacing: -.005em;
  transition: color .25s ease;
}
.ds-desc {
  font-family: var(--sjp-font-jp, 'Noto Sans JP', sans-serif);
  font-size: 13px; line-height: 1.85;
  color: var(--sjp-text-body, #3F5069); margin: 0;
}

/* ═══ CORE SERVICES ═══ */
.core-services-header {
  text-align: center; margin-bottom: 48px;
  display: flex; flex-direction: column; align-items: center;
}
.services-grid {
  display: grid; grid-template-columns: 1fr 1fr 1fr;
  gap: 16px; align-items: stretch;
}
.services-column { display: flex; flex-direction: column; gap: 16px; }
.service-card {
  flex: 1; min-height: 190px; padding: 12px 16px;
  display: flex; flex-direction: column; justify-content: flex-start; gap: 20px;
  border: 1px solid #E2E8F0; border-radius: 8px;
  background: #ffffff; color: #0F172A; transition: all .3s ease;
}
.service-card:hover {
  background: #1E40AF; color: #ffffff; border-color: #1E40AF;
  box-shadow: 0 2px 6px rgba(0,0,0,.25); transform: translateY(-4px);
}
.service-number { font-size: 12px; font-weight: 400; line-height: 1; opacity: 0.6; }
.service-content { display: flex; flex-direction: column; gap: 12px; }
.service-content h3 {
  margin: 0; font-size: 20px; font-weight: 700; line-height: 1.15; color: inherit;
}
.service-content p {
  margin: 0; font-size: 13px; font-weight: 400; line-height: 1.5; color: #3F5069;
}
.service-card:hover .service-content p { color: #ffffff; }
.service-divider { width: 100%; height: 1px; background: #E2E8F0; }
.service-bullets {
  list-style: none; margin: 0; padding: 0;
  display: flex; flex-direction: column; gap: 6px;
}
.service-bullets li {
  display: flex; align-items: center; gap: 8px;
  font-size: 13px; line-height: 1.5; color: #3F5069; transition: color .3s ease;
}
.service-bullets li svg { flex-shrink: 0; color: #1E40AF; transition: color .3s ease; }
.service-card:hover .service-bullets li,
.service-card:hover .service-bullets li svg { color: #ffffff; }

.services-image-card {
  position: relative; min-height: 396px; padding: 12px 16px;
  display: flex; align-items: flex-end; overflow: hidden;
  border-radius: 8px; transition: all .4s ease;
}
.services-image-card:hover { transform: translateY(-4px); box-shadow: 0 12px 30px rgba(0,0,0,.15); }
.services-image-card:hover .services-image { transform: scale(1.05); }
.services-image {
  position: absolute; top: 0; left: 0; width: 100%; height: 100%;
  max-width: none; object-fit: cover; transition: transform .4s ease;
}
.image-card-content {
  position: relative; z-index: 2; width: 100%;
  padding: 12px 16px; display: flex; flex-direction: column; gap: 12px;
  border-radius: 8px; background: rgba(30,64,175,.1);
  backdrop-filter: blur(5px); -webkit-backdrop-filter: blur(5px); color: #ffffff;
}
.image-card-content h3 { margin: 0; font-size: 18px; font-weight: 500; line-height: 1.2; color: #ffffff; }
.image-card-content p { margin: 0; font-size: 14px; font-weight: 400; line-height: 1.35; color: #ffffff; }
.service-button {
  width: fit-content; padding: 14px 20px 14px 24px;
  display: inline-flex; align-items: center; gap: 8px;
  border-radius: 8px; background: #1E40AF; color: #ffffff;
  text-decoration: none; font-size: 16px; font-weight: 700; line-height: 20px;
}
.service-button svg { width: 20px; height: 20px; display: block; }

/* ═══ PROCESS FLOW ═══ */
.lm-process {
  display: grid;
  grid-template-columns: 1fr 60px 1fr 60px 1fr 60px 1fr 60px 1fr;
  align-items: stretch; gap: 0; padding: 8px 0 0;
}
.lm-step {
  background: #fff; border: 1px solid var(--sjp-border-default, #E2E8F0);
  border-radius: 16px; padding: 28px 18px 24px; text-align: center;
  position: relative;
  transition: border-color .25s ease, box-shadow .25s ease, transform .25s ease;
}
.lm-step:hover {
  border-color: #BFDBFE;
  box-shadow: 0 14px 32px rgba(30,64,175,.10);
  transform: translateY(-3px);
}
.lm-step-num {
  position: absolute; top: -14px; left: 50%; transform: translateX(-50%);
  width: 32px; height: 32px; border-radius: 50%;
  background: linear-gradient(135deg, #3B82F6 0%, #1E40AF 100%);
  color: #fff;
  font-family: var(--sjp-font-latin, 'Inter', sans-serif); font-weight: 800;
  font-size: 14px;
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 6px 14px rgba(30,64,175,.32);
  border: 3px solid #fff;
}
.lm-step-ico {
  width: 56px; height: 56px; margin: 14px auto 14px;
  border-radius: 14px; background: #EFF6FF;
  color: var(--sjp-primary-blue, #1E40AF);
  display: flex; align-items: center; justify-content: center;
}
.lm-step-ico svg { width: 26px; height: 26px; }
.lm-step h3 {
  font-family: var(--sjp-font-jp, 'Noto Sans JP', sans-serif); font-weight: 700;
  font-size: 15px; line-height: 1.3; color: var(--sjp-ink-hi, #0B1220);
  margin: 0 0 8px; letter-spacing: -.005em;
}
.lm-step p {
  font-family: var(--sjp-font-jp, 'Noto Sans JP', sans-serif);
  font-size: 12px; line-height: 1.7;
  color: var(--sjp-text-body, #3F5069); margin: 0;
}
.lm-step-line {
  align-self: center; height: 2px;
  background: linear-gradient(90deg, #BFDBFE 0%, #3B82F6 100%);
  position: relative;
}
.lm-step-line::after {
  content: ""; position: absolute;
  right: -1px; top: 50%; transform: translateY(-50%);
  width: 0; height: 0;
  border-left: 8px solid #3B82F6;
  border-top: 6px solid transparent;
  border-bottom: 6px solid transparent;
}

/* ═══ INDUSTRIES (card grid) ═══ */
.embd-industries {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px;
}
.embd-industries__card {
  display: flex; align-items: center; gap: 14px;
  padding: 20px 24px;
  background: #fff;
  border: 1px solid var(--sjp-border-default, #E2E8F0);
  border-radius: 12px;
  font-family: var(--sjp-font-jp, 'Noto Sans JP', sans-serif);
  font-size: 14px; font-weight: 600;
  color: var(--sjp-ink-hi, #0B1220);
  transition: all .25s ease;
}
.embd-industries__card:hover {
  border-color: #BFDBFE;
  box-shadow: 0 6px 18px rgba(30,64,175,.08);
  transform: translateY(-2px);
}
.embd-industries__icon {
  width: 24px; height: 24px;
  color: var(--sjp-primary-blue, #1E40AF);
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.embd-industries__icon svg { width: 22px; height: 22px; }
.embd-industries__label { white-space: nowrap; }

/* ═══ TECH STACK (tabs) ═══ */
.emb-tabs {
  background: #fff;
  border: 1px solid var(--sjp-border-default, #E2E8F0);
  border-radius: 16px; overflow: hidden;
  box-shadow: 0 6px 22px rgba(15,23,42,.04);
}
.emb-tabs-nav {
  display: flex; flex-wrap: wrap;
  background: var(--sjp-bg-gray, #F8FAFC);
  border-bottom: 1px solid var(--sjp-border-default, #E2E8F0);
}
.emb-tab {
  flex: 1 1 auto; background: #F8FAFC; border: none;
  border-bottom: 3px solid #E2E8F0;
  padding: 16px 20px; cursor: pointer;
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--sjp-font-latin, 'Inter', sans-serif); font-weight: 600;
  font-size: 13px; letter-spacing: .01em;
  color: var(--sjp-text-body, #3F5069);
  white-space: nowrap;
  transition: background .2s ease, color .2s ease, border-color .2s ease;
  position: relative;
  min-width: 20%;
}
.emb-tab + .emb-tab { border-left: 1px solid var(--sjp-border-default, #E2E8F0); }
.emb-tab:hover { background: rgba(255,255,255,.5); color: var(--sjp-ink-hi, #0B1220); }
.emb-tab.is-active { background: #fff; color: var(--sjp-primary-blue, #1E40AF); border-bottom-color: currentColor; }
.emb-tab-dot { width: 8px; height: 8px; border-radius: 50%; flex-shrink: 0; }
.emb-tab-count {
  margin-left: 4px; font-size: 10.5px; font-weight: 700;
  background: rgba(148,163,184,.15); color: var(--sjp-text-tertiary, #94A3B8);
  padding: 2px 7px; border-radius: 999px;
}
.emb-tab.is-active .emb-tab-count { background: #EFF6FF; color: var(--sjp-primary-blue, #1E40AF); }
.emb-tab-label { color: #3F5069; }
.emb-tabs-panel { padding: 32px 36px; min-height: 140px; }
.emb-tabs-panel[hidden] { display: none; }
.emb-tabs-tags { display: grid; grid-template-columns: repeat(6, 1fr); gap: 25px 16px; }
.emb-tabs-tags--text { display: flex; flex-wrap: wrap; gap: 10px; }
.emb-tag {
  display: flex; height: 65px; padding: 14px 35px;
  justify-content: center; align-items: center; flex-shrink: 0; min-width: 0;
  border-radius: 12px; border: 1px solid rgba(59,130,246,.33); background: #FFF;
}
.emb-tag-img {
  max-height: 100%; max-width: 100%; object-fit: contain; display: block;
  transition: transform .3s ease;
}
.emb-tag:hover .emb-tag-img { transform: translateY(-4px); }
.emb-text-tag {
  display: inline-flex; align-items: center;
  padding: 8px 18px;
  border: 1px solid var(--sjp-border-default, #E2E8F0);
  border-radius: 999px;
  font-family: var(--sjp-font-latin, 'Inter', sans-serif);
  font-size: 13px; font-weight: 500;
  color: var(--sjp-ink-hi, #0B1220);
  background: #fff;
  transition: all .2s ease;
}
.emb-text-tag:hover {
  border-color: #BFDBFE;
  background: #EFF6FF;
  color: var(--sjp-primary-blue, #1E40AF);
}

/* ═══ PORTFOLIO ═══ */
.case-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px;
  padding: 16px 0;
  border-top: 1px solid var(--sjp-border-default, #E2E8F0);
  border-bottom: 1px solid var(--sjp-border-default, #E2E8F0);
}
.case-card {
  background: transparent; border: none; border-radius: 0;
  overflow: hidden; text-decoration: none; color: inherit;
  display: flex; flex-direction: column;
  transition: background-color .25s ease, box-shadow .25s ease;
  position: relative;
}
.case-card::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: 0;
  height: 3px; background: var(--sjp-primary-blue, #1E40AF);
  transform: scaleX(0); transform-origin: left center;
  transition: transform .35s cubic-bezier(.2,.8,.2,1); z-index: 2;
}
.case-card:hover { background: #EFF6FF; box-shadow: inset 0 0 0 1px #BFDBFE; }
.case-card:hover::after { transform: scaleX(1); }
.case-card:hover .case-title { color: var(--sjp-primary-blue, #1E40AF); }
.case-img { aspect-ratio: 16 / 9; overflow: hidden; position: relative; }
.case-card:hover .case-img-pat {
  transform: scale(1.125) translateY(.5rem); transition-duration: 3000ms;
}
.case-img-pat {
  position: absolute; inset: 0;
  transition: transform 600ms ease-out; will-change: transform;
  background-image:
    linear-gradient(to right, rgba(255,255,255,.06) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255,255,255,.06) 1px, transparent 1px);
  background-size: 32px 32px;
}
.case-img-lbl {
  position: absolute; bottom: 14px; left: 16px;
  font-family: var(--sjp-font-latin, 'Inter', sans-serif);
  font-size: 11px; font-weight: 700; color: rgba(255,255,255,.85);
  letter-spacing: .2em; background: rgba(0,0,0,.28);
  border: 1px solid rgba(255,255,255,.2); padding: 4px 10px; border-radius: 999px;
  backdrop-filter: blur(4px); -webkit-backdrop-filter: blur(4px);
}
.case-body { padding: 18px 22px 22px; }
.case-ind {
  display: inline-block;
  font-family: var(--sjp-font-jp, 'Noto Sans JP', sans-serif);
  font-size: 12px; font-weight: 600;
  color: var(--sjp-primary-blue, #1E40AF); background: #EFF6FF;
  border: 1px solid #DBEAFE; padding: 3px 10px; border-radius: 999px;
  margin-bottom: 12px;
}
.case-title {
  font-family: var(--sjp-font-jp, 'Noto Sans JP', sans-serif); font-weight: 700;
  font-size: 16px; line-height: 1.55; color: var(--sjp-ink-hi, #0B1220);
  margin: 0 0 10px; letter-spacing: -.005em;
}
.case-desc {
  font-family: var(--sjp-font-jp, 'Noto Sans JP', sans-serif);
  font-size: 13px; line-height: 1.85; color: var(--sjp-text-body, #3F5069); margin: 0;
}
.case-all {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--sjp-font-jp, 'Noto Sans JP', sans-serif);
  font-size: 14px; font-weight: 700;
  background: var(--sjp-primary-blue, #1E40AF); color: #fff;
  text-decoration: none; padding: 13px 36px; border-radius: 8px;
  box-shadow: 0 4px 14px rgba(30,64,175,.28);
  transition: all .25s ease;
}
.case-all:hover { background: #1E3A8A; transform: translateY(-2px); box-shadow: 0 10px 22px rgba(30,64,175,.4); }

/* ═══ RESPONSIVE ═══ */
@media (max-width: 1080px) {
  .sect { padding: 70px 32px; }
  .services-grid { grid-template-columns: 1fr 1fr; }
  .services-image-card { grid-column: span 2; min-height: 360px; }
  .lm-process { grid-template-columns: 1fr; gap: 32px; }
  .lm-step-line { display: none; }
  .emb-tab { flex: 1 1 50%; }
  .emb-tab + .emb-tab { border-left: none; }
  .emb-tab { border-bottom: 1px solid var(--sjp-border-default, #E2E8F0); }
  .emb-tabs-tags { grid-template-columns: repeat(4, 1fr); }
}
@media (max-width: 900px) {
  .sect { padding: 64px 24px; }
  .c-breadcrumb { font-size: 11px; gap: 6px; margin-bottom: 20px; }
  .services-grid { grid-template-columns: 1fr; }
  .services-image-card { grid-column: span 1; }
  .ds-grid.col-2 { grid-template-columns: 1fr; }
  .case-grid { grid-template-columns: 1fr; }
  .emb-tabs-tags { grid-template-columns: repeat(3, 1fr); }
  .embd-industries { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 560px) {
  .sect { padding: 56px 20px; }
  .embd-industries { grid-template-columns: 1fr; }
  .embd-industries__card { padding: 14px 18px; font-size: 13px; }
  .emb-tab { padding: 10px 12px; font-size: 11px; }
  .emb-tabs-panel { padding: 20px 16px; }
  .emb-tabs-tags { grid-template-columns: repeat(2, 1fr); gap: 12px; }
  .emb-tag { padding: 10px 16px; }
  .case-all { width: 100%; justify-content: center; }
}