:root {
  --bg: #f7f9fc;
  --surface: #ffffff;
  --text: #101828;
  --muted: #566174;
  --border: #e3e8ef;
  --blue: #4263eb;
  --cyan: #16b8c4;
  --soft-blue: #eef2ff;
  --soft-cyan: #eaf9fa;
  --warm: #ff8a65;
  --soft-warm: #fff1ec;
  --green: #30a46c;
  --dark: #111827;
  --dark-2: #172033;
  --radius: 16px;
  --radius-sm: 10px;
  --shadow: 0 14px 40px rgba(16, 24, 40, 0.08);
  --max: 1180px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.55;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
button, input, select, textarea { font: inherit; }

.container { width: min(var(--max), calc(100% - 40px)); margin: 0 auto; }
.section { padding: 92px 0; }
.section--tight { padding: 70px 0; }
.eyebrow {
  color: var(--blue);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: .15em;
  text-transform: uppercase;
}
.section-title {
  margin: 10px 0 14px;
  font-size: clamp(34px, 4vw, 52px);
  line-height: 1.04;
  letter-spacing: -0.035em;
}
.section-copy { max-width: 760px; color: var(--muted); font-size: 18px; }

.nav-wrap {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(247,249,252,.92);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(227,232,239,.9);
}
.nav {
  min-height: 74px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.brand { display: flex; align-items: center; gap: 12px; font-weight: 800; }
.brand-mark {
  width: 34px; height: 34px; border: 1px solid var(--border); border-radius: 10px; background: var(--surface);
  display: grid; place-items: center; position: relative;
}
.brand-mark::before, .brand-mark::after { content: ""; position: absolute; background: var(--blue); border-radius: 50%; }
.brand-mark::before { width: 7px; height: 7px; left: 7px; top: 7px; box-shadow: 13px 0 0 var(--cyan), 0 13px 0 var(--warm), 13px 13px 0 var(--green); }
.nav-links { display: flex; align-items: center; gap: 24px; color: #344054; font-size: 14px; font-weight: 650; }
.nav-links a:hover { color: var(--blue); }
.menu-btn { display: none; border: 1px solid var(--border); background: var(--surface); border-radius: 10px; padding: 9px 12px; }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  min-height: 46px; padding: 0 18px; border-radius: 10px; border: 1px solid transparent;
  font-weight: 750; transition: .18s ease; cursor: pointer;
}
.btn:hover { transform: translateY(-2px); }
.btn-primary { color: #fff; background: var(--blue); box-shadow: 0 8px 22px rgba(66,99,235,.20); }
.btn-secondary { background: var(--surface); border-color: var(--border); color: var(--text); }
.btn-dark { color: #fff; background: var(--dark); }
.btn-link { padding: 0; min-height: auto; color: var(--blue); }
[hidden] { display: none !important; }
.btn:disabled { background: #e7ebf1; border-color: #e0e5ec; color: #98a2b3; box-shadow: none; cursor: not-allowed; transform: none; }
.btn:disabled:hover { transform: none; }

.hero { padding: 78px 0 72px; }
.hero-grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: 58px; align-items: center; }
.hero h1 { font-size: clamp(48px, 6vw, 74px); line-height: .98; letter-spacing: -0.055em; margin: 16px 0 22px; max-width: 780px; }
.hero-copy { color: var(--muted); font-size: 19px; max-width: 690px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 30px; }
.hero-meta { display: flex; flex-wrap: wrap; gap: 18px; margin-top: 30px; color: #667085; font-size: 13px; font-weight: 650; }
.hero-meta span::before { content: "•"; color: var(--cyan); margin-right: 8px; }

.workspace {
  min-height: 520px; border: 1px solid var(--border); border-radius: 24px; background: var(--surface); box-shadow: var(--shadow);
  position: relative; overflow: hidden; padding: 26px;
}
.workspace::before {
  content: ""; position: absolute; inset: 0; opacity: .38; pointer-events: none;
  background-image: linear-gradient(var(--border) 1px, transparent 1px), linear-gradient(90deg,var(--border) 1px,transparent 1px);
  background-size: 28px 28px;
  mask-image: linear-gradient(to bottom, rgba(0,0,0,.7), transparent 78%);
}
.workspace-top { display: flex; justify-content: space-between; gap: 16px; position: relative; z-index: 2; }
.mini-label { font-size: 11px; letter-spacing: .12em; text-transform: uppercase; color: #667085; font-weight: 800; }
.status { display: inline-flex; align-items: center; gap: 7px; font-size: 12px; font-weight: 750; color: var(--green); }
.status::before { content: ""; width: 8px; height: 8px; border-radius: 50%; background: var(--green); box-shadow: 0 0 0 4px rgba(48,164,108,.12); }
.device {
  position: absolute; left: 8%; right: 15%; top: 22%; height: 220px; border-radius: 18px; background: var(--dark); border: 7px solid #2b3548;
  box-shadow: 0 24px 50px rgba(17,24,39,.22); z-index: 2; overflow: hidden;
}
.device-screen { position: absolute; inset: 14px; border-radius: 9px; background: linear-gradient(135deg,#22304a,#111827); padding: 18px; color: white; }
.screen-row { display: flex; gap: 9px; margin-bottom: 18px; }
.screen-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--cyan); }
.screen-dot:nth-child(2) { background: var(--warm); }
.screen-dot:nth-child(3) { background: var(--green); }
.screen-title { font-size: 18px; font-weight: 800; margin-bottom: 18px; }
.screen-grid { display: grid; grid-template-columns: 1.4fr .8fr; gap: 10px; }
.screen-box { min-height: 72px; border-radius: 8px; background: rgba(255,255,255,.08); border: 1px solid rgba(255,255,255,.12); }
.screen-box:first-child { background: linear-gradient(135deg,rgba(66,99,235,.75),rgba(22,184,196,.42)); }
.floating-panel { position: absolute; z-index: 3; border-radius: 14px; background: rgba(255,255,255,.96); border: 1px solid var(--border); box-shadow: var(--shadow); padding: 14px 16px; }
.panel-a { right: 4%; top: 46%; width: 160px; }
.panel-b { left: 7%; bottom: 6%; width: 210px; }
.tag-row { display: flex; flex-wrap: wrap; gap: 8px; }
.tag { display: inline-flex; align-items: center; min-height: 28px; padding: 0 9px; border-radius: 7px; border: 1px solid var(--border); background: #fafbfc; color: #344054; font-size: 12px; font-weight: 750; }
.tag.blue { background: var(--soft-blue); border-color: #dbe3ff; color: #304ec6; }
.tag.cyan { background: var(--soft-cyan); border-color: #d3f2f4; color: #087f88; }
.tag.warm { background: var(--soft-warm); border-color: #ffe0d5; color: #b94724; }

.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 24px; transition: .18s ease; }
.card:hover { transform: translateY(-3px); border-color: #cfd8e6; }
.card-num { font-size: 12px; font-weight: 850; color: var(--blue); letter-spacing: .12em; }
.card h3 { margin: 28px 0 10px; font-size: 22px; letter-spacing: -0.025em; }
.card p { margin: 0 0 22px; color: var(--muted); }
.card-link { color: var(--blue); font-weight: 800; font-size: 14px; }

.project-media { aspect-ratio: 16/10; border-radius: 12px; border: 1px solid var(--border); margin-bottom: 20px; background: linear-gradient(145deg,#f3f6fb,#e8eef7); position: relative; overflow: hidden; }
.project-media::before { content: ""; position: absolute; inset: 0; background-image: linear-gradient(rgba(66,99,235,.08) 1px,transparent 1px),linear-gradient(90deg,rgba(66,99,235,.08) 1px,transparent 1px); background-size: 24px 24px; }
.media-device { position: absolute; width: 58%; height: 55%; left: 21%; top: 20%; background: #172033; border: 5px solid #303a4c; border-radius: 10px; box-shadow: 0 14px 25px rgba(16,24,40,.18); }
.media-device::after { content: "PROJECT MEDIA"; position: absolute; inset: 8px; display: grid; place-items: center; border-radius: 5px; color: rgba(255,255,255,.6); background: linear-gradient(135deg,#1d2b47,#111827); font-size: 10px; letter-spacing: .14em; font-weight: 800; }
.project-top { display: flex; align-items: center; justify-content: space-between; gap: 16px; margin-bottom: 10px; }
.project-kicker { font-size: 12px; font-weight: 800; color: var(--muted); text-transform: uppercase; letter-spacing: .1em; }
.project-id { font-size: 12px; color: #98a2b3; }
.project h3 { margin: 8px 0 14px; }
.spec { color: var(--muted); font-size: 14px; margin: 12px 0 18px; }

.network-section { background: var(--dark); color: #fff; overflow: hidden; }
.network-section .section-copy { color: #aeb7c6; }
.network-matrix { margin-top: 42px; min-height: 460px; border: 1px solid rgba(255,255,255,.12); border-radius: 22px; position: relative; overflow: hidden; background: radial-gradient(circle at center,rgba(66,99,235,.15),transparent 40%); }
.network-matrix::before { content: ""; position: absolute; inset: 0; background-image: linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px); background-size: 34px 34px; }
.node { position: absolute; width: 180px; padding: 18px; border-radius: 14px; border: 1px solid rgba(255,255,255,.14); background: rgba(23,32,51,.88); backdrop-filter: blur(8px); z-index: 2; }
.node strong { display: block; margin-bottom: 7px; }
.node span { color: #aeb7c6; font-size: 13px; }
.node-software { left: 5%; top: 12%; }
.node-hardware { right: 5%; top: 12%; }
.node-engineering { left: 5%; bottom: 12%; }
.node-production { right: 5%; bottom: 12%; }
.node-center { width: 220px; left: 50%; top: 50%; transform: translate(-50%,-50%); text-align: center; border-color: rgba(66,99,235,.65); box-shadow: 0 0 0 6px rgba(66,99,235,.08); }
.node-center strong { font-size: 20px; }
.connector { position: absolute; left: 50%; top: 50%; width: 38%; height: 1px; background: linear-gradient(90deg,transparent,rgba(22,184,196,.45),transparent); transform-origin: left center; z-index: 1; }
.connector.c1 { transform: rotate(-150deg); }
.connector.c2 { transform: rotate(-30deg); }
.connector.c3 { transform: rotate(150deg); }
.connector.c4 { transform: rotate(30deg); }

.split { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; margin-top: 38px; }
.access-card { border-radius: 20px; padding: 34px; border: 1px solid var(--border); background: var(--surface); }
.access-card.primary { color: #fff; background: var(--dark); border-color: var(--dark); }
.access-card .label { font-size: 12px; text-transform: uppercase; letter-spacing: .12em; font-weight: 850; color: var(--blue); }
.access-card.primary .label { color: #a9b8ff; }
.access-card h3 { font-size: 30px; margin: 12px 0 10px; letter-spacing: -.035em; }
.access-card p { color: var(--muted); max-width: 520px; }
.access-card.primary p { color: #c7ced9; }

.workflow { display: grid; grid-template-columns: repeat(4, 1fr); margin-top: 40px; }
.step { position: relative; padding: 0 28px 0 0; }
.step:not(:last-child)::after { content: ""; position: absolute; height: 1px; background: var(--border); top: 14px; left: 44px; right: 18px; }
.step-num { width: 30px; height: 30px; display: grid; place-items: center; border-radius: 8px; border: 1px solid var(--border); background: var(--surface); color: var(--blue); font-size: 11px; font-weight: 850; position: relative; z-index: 2; }
.step h3 { margin: 24px 0 8px; font-size: 20px; }
.step p { color: var(--muted); font-size: 14px; }

.cta { background: linear-gradient(135deg,var(--soft-blue),var(--soft-cyan)); border: 1px solid #dde5f6; border-radius: 24px; padding: 48px; display: flex; align-items: center; justify-content: space-between; gap: 36px; }
.cta h2 { margin: 8px 0 12px; font-size: clamp(34px,4vw,50px); line-height: 1.03; letter-spacing: -.04em; }
.cta p { color: var(--muted); max-width: 690px; margin: 0; }

.footer { padding: 42px 0 55px; border-top: 1px solid var(--border); }
.footer-grid { display: grid; grid-template-columns: 1.3fr .7fr .7fr; gap: 40px; }
.footer p { color: var(--muted); max-width: 520px; }
.footer h4 { font-size: 13px; text-transform: uppercase; letter-spacing: .1em; margin: 0 0 14px; }
.footer-links { display: grid; gap: 9px; color: var(--muted); font-size: 14px; }
.footer-bottom { margin-top: 36px; padding-top: 22px; border-top: 1px solid var(--border); color: #98a2b3; font-size: 13px; display: flex; justify-content: space-between; gap: 20px; }

/* Forms */
.page-hero { padding: 70px 0 44px; }
.page-hero h1 { font-size: clamp(44px,6vw,68px); line-height: 1; letter-spacing: -.05em; margin: 12px 0 18px; }
.form-shell { background: var(--surface); border: 1px solid var(--border); border-radius: 22px; padding: 34px; box-shadow: var(--shadow); }
.form-section { padding: 8px 0 28px; margin-bottom: 26px; border-bottom: 1px solid var(--border); }
.form-section:last-of-type { border-bottom: 0; margin-bottom: 10px; }
.form-section h2 { font-size: 22px; margin: 0 0 18px; }
.form-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; }
.field { display: grid; gap: 7px; }
.field.full { grid-column: 1 / -1; }
.field label { font-size: 13px; font-weight: 800; color: #344054; }
.field input, .field select, .field textarea {
  width: 100%; border: 1px solid var(--border); background: #fff; border-radius: 10px; padding: 12px 13px; color: var(--text); outline: none;
}
.field input:focus, .field select:focus, .field textarea:focus { border-color: #9db1ff; box-shadow: 0 0 0 4px rgba(66,99,235,.08); }
.field textarea { min-height: 135px; resize: vertical; }
.check-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px; }
.check { display: flex; align-items: center; gap: 10px; padding: 12px; border: 1px solid var(--border); border-radius: 10px; color: #344054; }
.form-note { color: var(--muted); font-size: 13px; margin-top: 12px; }
.form-status { margin-top: 16px; padding: 13px 14px; border-radius: 10px; background: var(--soft-cyan); color: #087f88; display: none; }

.simple-list { display: grid; gap: 14px; margin-top: 28px; }
.list-item { display: flex; justify-content: space-between; gap: 20px; padding: 20px 22px; border: 1px solid var(--border); background: var(--surface); border-radius: 14px; }
.list-item strong { display: block; }
.list-item span { color: var(--muted); font-size: 14px; }

@media (max-width: 980px) {
  .nav-links { display: none; position: absolute; left: 20px; right: 20px; top: 76px; background: var(--surface); border: 1px solid var(--border); border-radius: 14px; padding: 16px; box-shadow: var(--shadow); flex-direction: column; align-items: stretch; }
  .nav-links.open { display: flex; }
  .menu-btn { display: inline-flex; }
  .hero-grid, .split, .footer-grid { grid-template-columns: 1fr; }
  .hero { padding-top: 54px; }
  .workspace { min-height: 470px; }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: 1fr; }
  .workflow { grid-template-columns: repeat(2,1fr); gap: 30px 18px; }
  .node { width: 155px; }
  .cta { align-items: flex-start; flex-direction: column; }
}

@media (max-width: 640px) {
  .container { width: min(100% - 28px, var(--max)); }
  .section { padding: 68px 0; }
  .nav { min-height: 66px; }
  .brand span:last-child { font-size: 14px; }
  .hero h1 { font-size: 48px; }
  .hero-copy, .section-copy { font-size: 16px; }
  .hero-actions .btn { width: 100%; }
  .workspace { min-height: 390px; padding: 18px; }
  .device { left: 5%; right: 8%; top: 23%; height: 170px; }
  .panel-a { right: 3%; top: 55%; width: 138px; }
  .panel-b { left: 5%; width: 180px; bottom: 4%; }
  .grid-4, .workflow, .form-grid, .check-grid { grid-template-columns: 1fr; }
  .step:not(:last-child)::after { display: none; }
  .network-matrix { min-height: 560px; }
  .node { width: calc(50% - 34px); padding: 14px; }
  .node-software { left: 18px; top: 38px; }
  .node-hardware { right: 18px; top: 38px; }
  .node-engineering { left: 18px; bottom: 38px; }
  .node-production { right: 18px; bottom: 38px; }
  .node-center { width: 190px; left: 50%; top: 50%; }
  .connector { display: none; }
  .access-card, .form-shell { padding: 24px; }
  .cta { padding: 30px 24px; }
  .footer-bottom { flex-direction: column; }
}

/* HMI Architecture Selector */
.nav-active { color: var(--blue) !important; }
.selector-hero { padding-bottom: 34px; }
.selector-hero-grid { display: grid; grid-template-columns: 1.15fr .85fr; gap: 50px; align-items: end; }
.selector-principle { background: var(--surface); border: 1px solid var(--border); border-radius: 18px; padding: 24px; box-shadow: var(--shadow); }
.selector-principle-flow { display: flex; flex-wrap: wrap; align-items: center; gap: 9px; margin: 14px 0 10px; font-size: 15px; }
.selector-principle-flow span { color: var(--cyan); }
.selector-principle p { margin: 0; color: var(--muted); font-size: 14px; }
.selector-section { padding-top: 26px; }
.selector-layout { display: grid; grid-template-columns: 280px minmax(0,1fr); gap: 24px; align-items: start; }
.selector-progress { position: sticky; top: 96px; background: var(--dark); color: #fff; border-radius: 20px; padding: 22px; }
.selector-progress-head { display: flex; justify-content: space-between; gap: 12px; color: #aeb7c6; font-size: 12px; }
.selector-progress .mini-label { color: #aeb7c6; }
.selector-progress-bar { height: 5px; border-radius: 5px; background: rgba(255,255,255,.12); margin: 16px 0 20px; overflow: hidden; }
.selector-progress-bar span { display: block; height: 100%; width: 20%; background: linear-gradient(90deg,var(--blue),var(--cyan)); transition: width .25s ease; }
.selector-progress ol { list-style: none; padding: 0; margin: 0; display: grid; gap: 7px; }
.selector-progress li { display: grid; grid-template-columns: 34px 1fr; gap: 11px; align-items: center; padding: 11px; border-radius: 12px; color: #8f9aab; transition: .2s ease; }
.selector-progress li > span { width: 30px; height: 30px; display: grid; place-items: center; border: 1px solid rgba(255,255,255,.15); border-radius: 8px; font-size: 11px; font-weight: 800; }
.selector-progress li strong { display: block; font-size: 13px; color: inherit; }
.selector-progress li small { display: block; margin-top: 2px; color: inherit; font-size: 11px; }
.selector-progress li.active { background: rgba(66,99,235,.18); color: #fff; }
.selector-progress li.active > span { border-color: rgba(159,178,255,.7); color: #cbd5ff; }
.selector-progress li.done { color: #aeb7c6; }
.selector-progress li.done > span { color: #7ce2cb; border-color: rgba(48,164,108,.45); }
.selector-progress li.can-return { cursor: pointer; }
.selector-progress li.can-return:hover { background: rgba(255,255,255,.07); color: #fff; }
.selector-progress li.can-return:focus-visible { outline: 2px solid #9db1ff; outline-offset: 2px; }
.selector-card { background: var(--surface); border: 1px solid var(--border); border-radius: 22px; padding: 34px; box-shadow: var(--shadow); min-height: 560px; }
.selector-step { display: none; }
.selector-step.active { display: block; animation: selectorFade .22s ease; }
@keyframes selectorFade { from { opacity: .25; transform: translateY(5px); } to { opacity: 1; transform: none; } }
.selector-step-kicker { color: var(--blue); font-size: 12px; font-weight: 850; text-transform: uppercase; letter-spacing: .13em; }
.selector-step h2 { margin: 8px 0 8px; font-size: clamp(30px,4vw,42px); letter-spacing: -.035em; line-height: 1.05; }
.selector-step > p { margin: 0 0 28px; color: var(--muted); font-size: 16px; max-width: 720px; }
.selector-form-grid { gap: 20px; }
.selector-form-grid-3 { grid-template-columns: repeat(3,1fr); }
.selector-spacer { margin-top: 24px; }
.choice-grid { display: grid; gap: 12px; }
.choice-grid-2 { grid-template-columns: repeat(2,1fr); }
.choice-grid-4 { grid-template-columns: repeat(4,1fr); }
.choice-card { position: relative; display: grid; gap: 5px; padding: 18px; border: 1px solid var(--border); border-radius: 14px; background: #fff; cursor: pointer; transition: .18s ease; }
.choice-card:hover { transform: translateY(-2px); border-color: #cbd6ee; }
.choice-card input { position: absolute; opacity: 0; }
.choice-card:has(input:checked) { border-color: #9db1ff; box-shadow: 0 0 0 4px rgba(66,99,235,.08); background: var(--soft-blue); }
.choice-title { font-weight: 800; color: var(--text); }
.choice-card > span:last-child { color: var(--muted); font-size: 13px; }
.selector-check-grid { grid-template-columns: repeat(2,1fr); }
.selector-check-grid .check { cursor: pointer; background: #fff; transition: .16s ease; }
.selector-check-grid .check:has(input:checked) { background: var(--soft-blue); border-color: #cdd8ff; color: #304ec6; }
.selector-actions { display: flex; justify-content: space-between; gap: 12px; margin-top: 34px; padding-top: 24px; border-top: 1px solid var(--border); }
.selector-actions #selectorBack:not(:disabled) { color: #344054; background: #fff; }
.selector-validation { min-height: 22px; margin-top: 10px; color: #b42318; font-size: 13px; }
.selector-result-section { border-top: 1px solid var(--border); background: #f2f5fa; }
.result-head { display: flex; align-items: flex-start; justify-content: space-between; gap: 30px; }
.fit-badge { margin-top: 14px; flex: 0 0 auto; padding: 8px 11px; border-radius: 9px; background: var(--soft-cyan); color: #087f88; border: 1px solid #d3f2f4; font-size: 12px; font-weight: 800; }
.architecture-result-grid { display: grid; grid-template-columns: 1.25fr .75fr; gap: 16px; margin-top: 36px; }
.architecture-primary, .architecture-panel { background: var(--surface); border: 1px solid var(--border); border-radius: 18px; padding: 28px; }
.architecture-primary { grid-row: span 2; background: var(--dark); color: #fff; border-color: var(--dark); }
.architecture-primary .mini-label { color: #9fb2ff; }
.architecture-primary h3 { font-size: clamp(30px,4vw,44px); line-height: 1.02; letter-spacing: -.04em; margin: 12px 0 15px; }
.architecture-primary p { color: #c7ced9; }
.architecture-stack { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 26px; }
.architecture-panel h4 { font-size: 20px; margin: 10px 0 8px; }
.architecture-panel p { color: var(--muted); margin: 0; }
.reason-list { margin: 14px 0 0; padding-left: 19px; color: #344054; }
.reason-list li { margin: 0 0 10px; }
.alternative-panel { background: linear-gradient(135deg,var(--soft-blue),var(--soft-cyan)); }
.selector-summary { margin-top: 16px; background: var(--surface); border: 1px solid var(--border); border-radius: 18px; padding: 24px; }
.summary-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 12px; margin-top: 14px; }
.summary-grid > div { border: 1px solid var(--border); border-radius: 11px; padding: 12px; }
.summary-grid span { display: block; color: var(--muted); font-size: 11px; text-transform: uppercase; letter-spacing: .08em; font-weight: 800; }
.summary-grid strong { display: block; margin-top: 5px; font-size: 14px; }
.next-stage-band { margin-top: 28px; background: var(--surface); border: 1px solid var(--border); border-radius: 20px; padding: 30px; display: flex; justify-content: space-between; gap: 30px; align-items: center; }
.next-stage-band h3 { margin: 7px 0 8px; font-size: 28px; letter-spacing: -.03em; }
.next-stage-band p { margin: 0; color: var(--muted); }
.next-stage-actions { display: flex; gap: 10px; flex: 0 0 auto; }
.selector-reset-row { margin-top: 18px; }
.selector-context { margin: 0 0 22px; padding: 18px 20px; border: 1px solid #dbe3ff; background: var(--soft-blue); border-radius: 14px; }
.selector-context strong { display: block; margin-bottom: 6px; }
.selector-context p { margin: 0; color: var(--muted); font-size: 14px; }

@media (max-width: 980px) {
  .selector-hero-grid, .selector-layout { grid-template-columns: 1fr; }
  .choice-grid-4 { grid-template-columns: repeat(2,1fr); }
  .selector-form-grid-3 { grid-template-columns: repeat(2,1fr); }
  .selector-progress { position: static; }
  .selector-progress ol { grid-template-columns: repeat(5,1fr); }
  .selector-progress li { display: block; padding: 7px; }
  .selector-progress li div { display: none; }
  .architecture-result-grid { grid-template-columns: 1fr; }
  .architecture-primary { grid-row: auto; }
  .next-stage-band { align-items: flex-start; flex-direction: column; }
  .next-stage-actions { flex-wrap: wrap; }
}
@media (max-width: 640px) {
  .selector-card { padding: 24px; min-height: 0; }
  .choice-grid-2, .choice-grid-4, .selector-check-grid, .summary-grid, .selector-form-grid-3 { grid-template-columns: 1fr; }
  .selector-progress ol { grid-template-columns: repeat(5,1fr); gap: 4px; }
  .selector-progress li > span { width: 100%; }
  .selector-actions { flex-wrap: wrap; }
  .selector-actions .btn { flex: 1; }
  .result-head { flex-direction: column; gap: 5px; }
  .fit-badge { margin-top: 0; }
  .next-stage-actions { width: 100%; }
  .next-stage-actions .btn { width: 100%; }
}

/* Compact selector choices */
.choice-grid-4 .choice-card { min-height: 108px; align-content: start; }
.choice-grid-4 .choice-title { font-size: 16px; }
.choice-grid-4 .choice-card > span:last-child { line-height: 1.45; }

/* V0.2.2 — concise funnel refinements */
.page-actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 26px; }
.page-actions + .grid-3, .page-actions + .grid-4 { margin-top: 32px; }
.io-groups { display: grid; gap: 22px; }
.io-group { display: grid; gap: 10px; }
.io-group .selector-check-grid { grid-template-columns: repeat(3, 1fr); }
.card p { min-height: 0; }
.page-hero .section-copy { max-width: 680px; }
.form-section h2 { letter-spacing: -.02em; }

@media (max-width: 980px) {
  .io-group .selector-check-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 640px) {
  .page-actions .btn { width: 100%; }
  .io-group .selector-check-grid { grid-template-columns: 1fr; }
}

/* V0.2.4 — consistent English form validation */
.field input.is-invalid,
.field select.is-invalid,
.field textarea.is-invalid {
  border-color: #d92d20;
  box-shadow: 0 0 0 4px rgba(217,45,32,.08);
}
.input-error {
  margin-top: 7px;
  color: #b42318;
  font-size: 13px;
  line-height: 1.4;
}
.form-status.form-status-error {
  background: #fef3f2;
  color: #b42318;
  border: 1px solid #fecdca;
}

/* V0.2.5 — Engineering network map */
.engineering-page-hero { padding-bottom: 34px; }
.engineering-network-map { padding: 0 0 24px; }
.engineering-network-visual {
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: 22px;
  background: #fff;
  box-shadow: 0 14px 40px rgba(16, 24, 40, 0.06);
}
.engineering-network-visual img {
  width: 100%;
  height: auto;
  display: block;
}
.engineering-capabilities { padding-top: 40px; }
.engineering-capabilities .page-actions { margin-top: 28px; }

@media (max-width: 760px) {
  .engineering-page-hero { padding-bottom: 24px; }
  .engineering-network-map { padding-bottom: 8px; }
  .engineering-network-visual { border-radius: 14px; }
  .engineering-capabilities { padding-top: 32px; }
}