* {
  box-sizing:border-box
}
html {
  scroll-behavior:smooth;
  scroll-padding-top:2rem
}
body {
  margin:0;
  background:#0b1019;
  color:#f1f4fa;
  font:17px/1.65 -apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif
}
a {
  color:#a8d8ee;
  text-underline-offset:.22em
}
a:hover {
  color:#fff
}
a:focus-visible,summary:focus-visible {
  outline:3px solid #f6b475;
  outline-offset:5px;
  border-radius:3px
}
p {
  margin:0 0 1.25rem;
  color:#b7c2d2
}
h1,h2,h3 {
  line-height:1.13;
  letter-spacing:-.035em;
  margin:0 0 1.5rem
}
h1 {
  font-size:clamp(2.8rem,6.7vw,6.1rem);
  font-weight:650
}
h2 {
  font-size:clamp(2.2rem,4.3vw,3.7rem);
  font-weight:600
}
h3 {
  font-size:1.35rem;
  letter-spacing:-.015em
}
strong {
  color:#f1f4fa
}
img {
  max-width:100%;
  height:auto;
  display:block
}
code {
  font-size:.86em;
  overflow-wrap:anywhere;
  color:#efc69d
}
.navigation,main,footer {
  max-width:1280px;
  margin:auto;
  padding-left:48px;
  padding-right:48px
}
.navigation {
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:24px;
  min-height:100px
}
.wordmark {
  color:#f1f4fa;
  font-size:1.05rem;
  font-weight:600;
  text-decoration:none;
  line-height:1.3
}
.wordmark span {
  display:block;
  font-size:.75rem;
  color:#93a1b5;
  font-weight:400;
  margin-top:4px
}
.navigation nav {
  display:flex;
  align-items:center;
  gap:28px;
  font-size:.85rem
}
.navigation nav a {
  color:#bec8d8;
  text-decoration:none
}
.navigation .nav-action {
  padding:10px 18px;
  border:1px solid #435267;
  border-radius:24px
}
.skip {
  position:absolute;
  top:-100px;
  left:20px;
  padding:12px;
  background:#172334;
  z-index:10
}
.skip:focus {
  top:10px
}
.banner {
  width:100%;
  border-radius:5px
}
.hero-copy {
  padding:70px 0 26px;
  max-width:850px
}
.eyebrow {
  text-transform:uppercase;
  letter-spacing:.16em;
  font-size:.72rem;
  color:#eab17e;
  font-weight:600;
  margin-bottom:22px
}
.lead {
  max-width:730px;
  font-size:clamp(1.15rem,2vw,1.45rem);
  line-height:1.6
}
.actions {
  display:flex;
  gap:14px;
  flex-wrap:wrap;
  margin:30px 0 0
}
.button {
  display:inline-flex;
  align-items:center;
  gap:30px;
  border:1px solid #526073;
  color:#e9f1f7;
  border-radius:30px;
  padding:12px 24px;
  text-decoration:none;
  font-size:.9rem;
  font-weight:600
}
.button.primary {
  background:#edb47f;
  color:#14191f;
  border-color:#edb47f
}
.button.primary:hover {
  background:#ffd2a6
}
.button:hover {
  border-color:#e6edf5
}
section {
  padding:78px 0;
  border-bottom:1px solid #253041
}
.hero {
  padding-top:0
}
.section-heading {
  max-width:800px;
  margin-bottom:38px
}
.section-heading>p:last-child {
  font-size:1.1rem
}
.gallery {
  display:grid;
  gap:18px;
  align-items:start
}
.four {
  grid-template-columns:repeat(4,minmax(0,1fr))
}
.pair {
  grid-template-columns:repeat(2,minmax(0,1fr));
  max-width:780px;
  margin:50px auto 20px;
  gap:30px
}
.three {
  grid-template-columns:repeat(3,minmax(0,1fr))
}
figure {
  margin:0;
  min-width:0
}
.gallery img {
  width:100%;
  border-radius:16px
}
.gallery figcaption {
  font-size:.82rem;
  line-height:1.5;
  padding:14px 5px
}
.gallery figcaption span {
  display:block;
  color:#a3b0c3;
  font-size:.85rem;
  margin-top:6px
}
.image-note {
  font-size:.8rem;
  line-height:1.7;
  color:#91a0b6;
  margin:18px 0 0;
  max-width:950px
}
.feature-list {
  margin:0
}
.feature-list>div {
  display:grid;
  grid-template-columns:1fr 1.4fr;
  gap:40px;
  padding:28px 0;
  border-top:1px solid #2a3443
}
dt {
  font-size:1.15rem;
  line-height:1.5;
  color:#f1f4fa
}
dd {
  margin:0;
  color:#b7c2d2
}
.number {
  display:inline-block;
  width:45px;
  font-size:.75rem;
  color:#b1c5d8;
  vertical-align:middle
}
details {
  margin-top:32px;
  border:1px solid #3b4859;
  border-radius:14px;
  overflow:hidden
}
summary {
  cursor:pointer;
  padding:21px 24px;
  font-size:1rem;
  font-weight:600;
  list-style:none;
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:20px
}
summary:after {
  content:"+";
  color:#edb47f;
  font-size:1.4rem;
  font-weight:400
}
details[open]>summary:after {
  content:"−"
}
summary::-webkit-details-marker {
  display:none
}
.detail-body {
  padding:4px 24px 28px
}
.detail-body p:last-child {
  margin-bottom:0
}
.split-copy {
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:60px
}
.dashboard img {
  width:100%;
  border-radius:18px
}
.dashboard figcaption {
  font-size:.9rem;
  padding-top:15px
}
.candidate {
  border:0
}
.candidate h2 {
  max-width:800px
}
.candidate .split-copy {
  margin-top:40px
}
footer {
  border-top:1px solid #2a3443;
  padding-top:36px;
  padding-bottom:35px;
  display:flex;
  flex-wrap:wrap;
  justify-content:space-between;
  gap:20px;
  font-size:.85rem
}
footer nav {
  display:flex;
  flex-wrap:wrap;
  gap:24px;
  align-items:start
}
footer p {
  margin:5px 0
}
.small {
  width:100%;
  font-size:.75rem;
  color:#91a0b6
}
@media(max-width:900px) {
  .navigation,main,footer {
    padding-left:28px;
    padding-right:28px
  }
  .four {
    grid-template-columns:repeat(2,minmax(0,1fr));
    gap:26px
  }
  .hero-copy {
    padding-top:48px
  }
  .navigation nav {
    gap:18px
  }
  .feature-list>div {
    grid-template-columns:1fr 1.3fr;
    gap:24px
  }
  .split-copy {
    gap:32px
  }
}
@media(max-width:600px) {
  body {
    font-size:16px
  }
  .navigation,main,footer {
    padding-left:20px;
    padding-right:20px
  }
  .navigation {
    min-height:105px;
    gap:16px;
    flex-wrap:wrap;
    padding-top:18px;
    padding-bottom:18px
  }
  .navigation nav {
    width:100%;
    justify-content:space-between;
    gap:12px;
    font-size:.76rem
  }
  .navigation .nav-action {
    padding:6px 10px
  }
  .hero-copy {
    padding-top:36px
  }
  .eyebrow {
    font-size:.65rem;
    letter-spacing:.12em
  }
  section {
    padding:52px 0
  }
  .four,.pair,.three {
    gap:14px
  }
  .three {
    grid-template-columns:1fr
  }
  .three figure {
    max-width:320px;
    margin:auto
  }
  .gallery img {
    border-radius:10px
  }
  .gallery figcaption {
    font-size:.74rem;
    padding:10px 2px
  }
  .feature-list>div {
    grid-template-columns:1fr;
    gap:12px;
    padding:24px 0
  }
  .split-copy {
    grid-template-columns:1fr;
    gap:24px
  }
  .details-gallery {
    grid-template-columns:1fr
  }
  .details-gallery figure {
    max-width:330px;
    margin:auto
  }
  .detail-body {
    padding:0 16px 22px
  }
  summary {
    padding:18px 16px
  }
  .pair {
    gap:12px;
    margin-top:30px
  }
  footer nav {
    gap:18px
  }
  .actions {
    gap:10px
  }
  .button {
    gap:16px;
    padding:11px 20px;
    font-size:.85rem
  }
}
@media(prefers-reduced-motion:reduce) {
  html {
    scroll-behavior:auto
  }
}

.badges {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-bottom: 28px;
}
.badges img {
  width: auto;
  height: 20px;
}

.guide-link { margin-top: 28px; }
.validation-note { margin-top: 36px; padding: 28px; border-left: 2px solid #72bad9; background: #101c2a; border-radius: 0 12px 12px 0; }
.validation-note p { margin-bottom: 0; }
.flow { padding: 28px; margin-top: 24px; border: 1px solid #31495f; border-radius: 18px; background: #101b29; }
.flow h3 { color: #9dd7ef; font-size: 1rem; letter-spacing: .02em; }
.flow h3 span { color: #b7c2d2; font-weight: 400; }
.flow ol { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 42px; list-style: none; padding: 0; margin: 0; }
.flow li { position: relative; padding: 20px; background: #142338; border: 1px solid #31495f; border-radius: 12px; }
.flow li+li:before { content: '→'; position: absolute; left: -32px; top: 32px; color: #9dd7ef; }
.flow li strong, .flow li span { display: block; }
.flow li strong { font-size: 1rem; }
.flow li span { font-size: .85rem; color: #b7c2d2; margin-top: 8px; }
.flow .ti { border-color: #72bad9; }
.actions-flow h3, .actions-flow li+li:before { color: #edb47f; }
.actions-flow .ti { border: 2px solid #ba9be5; background: #332542; }
.companion-project { display: flex; align-items: center; gap: 16px; padding: 18px 22px; border: 1px solid #2a3c4f; border-radius: 12px; text-decoration: none; }
.companion-project small, .companion-project strong { display: block; }
.companion-project small { color: #9fb1c6; margin-bottom: 2px; }
.companion-project img { width: 48px; height: 48px; }
@media(max-width:700px) {
  .flow { padding: 20px; }
  .flow ol { grid-template-columns: 1fr; gap: 34px; }
  .flow li+li:before { content: '↓'; left: 24px; top: -31px; }
  .validation-note { padding: 22px; }
}

.observation-graph { margin-top: 32px; }
.source-stage, .ha-stage, .ti-stage { padding: 28px; border: 1px solid #31495f; border-radius: 18px; background: #101b29; }
.observation-graph h3 { font-size: 1.2rem; color: #9dd7ef; }
.source-grid, .platform-grid, .mapping-grid { display: grid; gap: 16px; list-style: none; padding: 0; margin: 0; }
.source-grid { grid-template-columns: repeat(5,minmax(0,1fr)); }
.platform-grid { grid-template-columns: repeat(3,minmax(0,1fr)); }
.mapping-grid { grid-template-columns: repeat(2,minmax(0,1fr)); }
.observation-graph li { border: 1px solid #31495f; padding: 18px; border-radius: 12px; background: #142338; overflow-wrap: anywhere; }
.observation-graph strong, .observation-graph li span { display: block; }
.observation-graph strong { line-height: 1.4; font-size: .95rem; }
.observation-graph li span { margin-top: 10px; font-size: .85rem; color: #b7c2d2; }
.stage-link { margin: 18px 0; text-align: center; color: #a6cbdc; font-size: .85rem; }
.stage-link span { display: block; font-size: 1.6rem; line-height: 1; margin-bottom: 10px; }
.ti-stage { border: 2px solid #ba9be5; background: #332542; }
.ti-stage h3 { color: #e0caf8; }
.ti-stage li { border-color: #71558c; background: #2a2038; }
.ti-stage>p { font-size: .9rem; margin: 22px 0 0; }
@media(max-width:1000px) { .source-grid { grid-template-columns: repeat(3,minmax(0,1fr)); } }
@media(max-width:700px) {
  .source-stage, .ha-stage, .ti-stage { padding: 20px; }
  .source-grid, .platform-grid, .mapping-grid { grid-template-columns: 1fr; }
  .stage-link { padding: 0 12px; }
}