:root {
  color-scheme: light;
  --primary: #0f766e;
  --primary-dark: #115e59;
  --primary-soft: #ccfbf1;
  --ink: #17212b;
  --muted: #5f6b76;
  --line: #d9e2e7;
  --surface: #ffffff;
  --surface-soft: #f5f8f8;
  --warning: #9a5b00;
  --shadow: 0 18px 50px rgba(15, 62, 58, 0.1);
  --radius-lg: 24px;
  --radius-md: 18px;
  font-family: "Noto Sans JP", "Yu Gothic", "Meiryo", system-ui, sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  min-width: 320px;
  background: var(--surface-soft);
}

body {
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(circle at top right, rgba(20, 184, 166, 0.12), transparent 34rem),
    var(--surface-soft);
  line-height: 1.7;
  overflow-x: hidden;
}

a {
  color: inherit;
}

button,
a {
  -webkit-tap-highlight-color: transparent;
}

button:focus-visible,
a:focus-visible {
  outline: 3px solid rgba(15, 118, 110, 0.35);
  outline-offset: 3px;
}

.noscript-message {
  padding: 14px 18px;
  color: #7c2d12;
  background: #ffedd5;
  text-align: center;
  font-weight: 700;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  border-bottom: 1px solid rgba(217, 226, 231, 0.88);
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(16px);
}

.header-inner,
.hero-inner,
.section,
.site-footer > div {
  width: min(1180px, calc(100% - 40px));
  margin-inline: auto;
}

.header-inner {
  min-height: 76px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.brand-mark {
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  border-radius: 14px;
  color: #ffffff;
  background: linear-gradient(145deg, var(--primary), #14b8a6);
  box-shadow: 0 10px 24px rgba(15, 118, 110, 0.2);
  font-size: 23px;
}

.brand strong,
.brand small {
  display: block;
}

.brand strong {
  font-size: 16px;
  line-height: 1.3;
}

.brand small {
  margin-top: 2px;
  color: var(--muted);
  font-size: 12px;
}

.environment-badge {
  min-height: 34px;
  display: inline-flex;
  align-items: center;
  padding: 5px 12px;
  border: 1px solid #99f6e4;
  border-radius: 999px;
  color: var(--primary-dark);
  background: #f0fdfa;
  font-size: 13px;
  font-weight: 800;
}

.hero {
  padding: 72px 0 54px;
}

.hero-inner {
  padding: 52px clamp(26px, 6vw, 80px);
  border: 1px solid rgba(153, 246, 228, 0.8);
  border-radius: 32px;
  color: #ffffff;
  background:
    linear-gradient(120deg, rgba(7, 78, 73, 0.98), rgba(15, 118, 110, 0.94)),
    var(--primary);
  box-shadow: var(--shadow);
  overflow: hidden;
  position: relative;
}

.hero-inner::after {
  content: "";
  position: absolute;
  width: 300px;
  height: 300px;
  right: -80px;
  top: -120px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 50%;
  box-shadow: 0 0 0 38px rgba(255, 255, 255, 0.05), 0 0 0 76px rgba(255, 255, 255, 0.03);
}

.eyebrow,
.section-kicker,
.role-tag {
  margin: 0;
  letter-spacing: 0.1em;
  font-size: 12px;
  font-weight: 900;
}

.eyebrow {
  color: #99f6e4;
}

.hero h1 {
  position: relative;
  z-index: 1;
  margin: 14px 0 18px;
  max-width: 760px;
  font-size: clamp(34px, 6vw, 64px);
  line-height: 1.2;
  letter-spacing: -0.03em;
}

.hero-copy {
  position: relative;
  z-index: 1;
  max-width: 760px;
  margin: 0;
  color: rgba(255, 255, 255, 0.86);
  font-size: clamp(16px, 2vw, 20px);
}

.hero-meta {
  position: relative;
  z-index: 1;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 30px;
}

.hero-meta > span {
  display: inline-flex;
  gap: 8px;
  align-items: center;
  min-height: 38px;
  padding: 6px 12px;
  border: 1px solid rgba(255, 255, 255, 0.17);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
  font-size: 13px;
}

.hero-meta strong {
  color: #99f6e4;
}

.section {
  padding: 54px 0;
}

.section-heading {
  max-width: 760px;
  margin-bottom: 28px;
}

.section-kicker,
.role-tag {
  color: var(--primary);
}

.section-heading h2,
.safety-card h2 {
  margin: 4px 0 6px;
  font-size: clamp(27px, 4vw, 40px);
  line-height: 1.35;
}

.section-heading p:not(.section-kicker) {
  margin: 0;
  color: var(--muted);
}

.role-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
}

.role-card {
  min-width: 0;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 18px;
  padding: 26px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--surface);
  box-shadow: 0 10px 30px rgba(34, 64, 61, 0.055);
}

.role-card.is-check {
  grid-column: 1 / -1;
}

.role-icon {
  width: 54px;
  height: 54px;
  display: grid;
  place-items: center;
  flex: 0 0 auto;
  border-radius: 17px;
  color: var(--primary-dark);
  background: var(--primary-soft);
  font-size: 22px;
  font-weight: 900;
}

.role-content {
  min-width: 0;
}

.role-card h3 {
  margin: 3px 0 8px;
  font-size: 24px;
  line-height: 1.35;
}

.role-card p:not(.role-tag) {
  margin: 0;
  color: var(--muted);
}

.role-card ul {
  margin: 14px 0 22px;
  padding-left: 1.2em;
  color: #394650;
  font-size: 14px;
}

.primary-link {
  min-height: 48px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 18px;
  border-radius: 14px;
  color: #ffffff;
  background: var(--primary);
  text-decoration: none;
  font-weight: 900;
  transition: transform 0.18s ease, background 0.18s ease;
}

.primary-link:hover {
  transform: translateY(-2px);
  background: var(--primary-dark);
}

.demo-section {
  padding-top: 30px;
}

.demo-flow {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin-bottom: 20px;
}

.flow-step {
  min-width: 0;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 12px;
  padding: 18px;
  border: 1px solid #f4d58d;
  border-radius: var(--radius-md);
  background: #fffaf0;
}

.flow-step > span {
  width: 34px;
  height: 34px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  color: #ffffff;
  background: #b7791f;
  font-weight: 900;
}

.flow-step strong {
  display: block;
  margin-bottom: 2px;
}

.flow-step p {
  margin: 0;
  color: #775318;
  font-size: 13px;
}

.credential-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.credential-card {
  min-width: 0;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--surface);
}

.credential-card h3 {
  margin: 0 0 12px;
  font-size: 19px;
}

.credential-card dl,
.credential-card dd {
  margin: 0;
}

.credential-card dl > div + div {
  margin-top: 14px;
  padding-top: 14px;
  border-top: 1px solid #edf1f3;
}

.credential-card dt {
  margin-bottom: 5px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 800;
}

.credential-card dd {
  min-width: 0;
  display: flex;
  align-items: center;
  gap: 8px;
}

.credential-card code {
  min-width: 0;
  flex: 1;
  padding: 8px 10px;
  border-radius: 10px;
  color: #134e4a;
  background: #f0fdfa;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  overflow-wrap: anywhere;
}

.credential-card button {
  min-width: 62px;
  min-height: 44px;
  border: 1px solid #99f6e4;
  border-radius: 11px;
  color: var(--primary-dark);
  background: #ffffff;
  font-weight: 900;
  cursor: pointer;
}

.safety-card {
  display: grid;
  grid-template-columns: minmax(220px, 0.75fr) minmax(0, 1.25fr);
  gap: 34px;
  padding: clamp(25px, 5vw, 44px);
  border-radius: var(--radius-lg);
  color: #ffffff;
  background: #173c3a;
}

.safety-card .section-kicker {
  color: #99f6e4;
}

.safety-card ul {
  margin: 0;
  padding-left: 1.2em;
  color: rgba(255, 255, 255, 0.86);
}

.safety-card li + li {
  margin-top: 10px;
}

.site-footer {
  margin-top: 40px;
  padding: 30px 0 calc(30px + env(safe-area-inset-bottom));
  border-top: 1px solid var(--line);
  color: var(--muted);
  background: #ffffff;
}

.site-footer > div {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  font-size: 13px;
}

.portal-toast {
  position: fixed;
  z-index: 50;
  right: 20px;
  bottom: calc(20px + env(safe-area-inset-bottom));
  max-width: min(420px, calc(100% - 40px));
  padding: 13px 16px;
  border-radius: 14px;
  color: #ffffff;
  background: #173c3a;
  box-shadow: var(--shadow);
  font-weight: 800;
}

@media (max-width: 860px) {
  .role-grid,
  .credential-grid {
    grid-template-columns: 1fr;
  }

  .role-card.is-check {
    grid-column: auto;
  }

  .demo-flow {
    grid-template-columns: 1fr;
  }

  .safety-card {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 620px) {
  .header-inner,
  .hero-inner,
  .section,
  .site-footer > div {
    width: min(100% - 24px, 1180px);
  }

  .header-inner {
    min-height: 68px;
  }

  .environment-badge {
    padding-inline: 9px;
    font-size: 11px;
  }

  .brand strong {
    font-size: 14px;
  }

  .brand small {
    font-size: 11px;
  }

  .hero {
    padding: 34px 0 24px;
  }

  .hero-inner {
    padding: 34px 22px;
    border-radius: 24px;
  }

  .hero h1 {
    font-size: clamp(32px, 11vw, 46px);
  }

  .section {
    padding: 36px 0;
  }

  .role-card {
    grid-template-columns: 1fr;
    padding: 22px;
  }

  .role-icon {
    width: 48px;
    height: 48px;
  }

  .primary-link {
    width: 100%;
  }

  .credential-card dd {
    align-items: stretch;
    flex-direction: column;
  }

  .credential-card button {
    width: 100%;
  }

  .site-footer > div {
    flex-direction: column;
    gap: 2px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition: none !important;
  }
}

/* DPRO-SYSTEMS-4 SHUTTLE OPERATION DEMO */
.operation-demo-page .header-actions{
  display:flex;
  align-items:center;
  justify-content:flex-end;
  flex-wrap:wrap;
  gap:10px;
}
.operation-demo-page .official-return-link{
  min-height:38px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  padding:7px 14px;
  border-radius:999px;
  color:#fff;
  background:var(--primary);
  text-decoration:none;
  font-size:12px;
  font-weight:900;
  box-shadow:0 9px 22px rgba(15,118,110,.18);
}
.operation-demo-page .operation-demo-notice{
  width:min(1180px,calc(100% - 40px));
  margin:24px auto 0;
  padding:18px 20px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:22px;
  border:1px solid #bde8df;
  border-radius:20px;
  background:linear-gradient(135deg,#f7fcfb,#e9f8f4);
  box-shadow:0 14px 34px rgba(15,62,58,.07);
}
.operation-demo-page .operation-demo-notice>div{
  display:flex;
  flex-direction:column;
}
.operation-demo-page .operation-demo-notice small{
  color:var(--primary);
  font-size:10px;
  font-weight:1000;
  letter-spacing:.13em;
}
.operation-demo-page .operation-demo-notice strong{
  margin-top:3px;
  font-size:18px;
  line-height:1.4;
}
.operation-demo-page .operation-demo-notice span{
  margin-top:4px;
  color:var(--muted);
  font-size:13px;
  font-weight:700;
}
.operation-demo-page .operation-demo-notice a{
  flex:0 0 auto;
  min-height:44px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  padding:9px 16px;
  border-radius:999px;
  color:#fff;
  background:var(--primary);
  text-decoration:none;
  font-size:12px;
  font-weight:900;
}
.operation-demo-page .hero{
  padding-top:28px;
}
.operation-demo-page .hero-inner{
  background:
    radial-gradient(circle at 90% 10%,rgba(153,246,228,.16),transparent 24rem),
    linear-gradient(120deg,rgba(7,78,73,.98),rgba(15,118,110,.94));
}
.operation-demo-page .role-grid{
  grid-template-columns:repeat(2,minmax(0,1fr));
}
@media(max-width:860px){
  .operation-demo-page .role-grid{grid-template-columns:1fr}
}
@media(max-width:620px){
  .operation-demo-page .operation-demo-notice{
    width:min(100% - 24px,1180px);
    align-items:flex-start;
    flex-direction:column;
  }
  .operation-demo-page .operation-demo-notice a{width:100%}
  .operation-demo-page .header-actions{
    width:100%;
    justify-content:flex-start;
  }
}