:root {
  color-scheme: dark;
  --canvas: #080a13;
  --canvas-soft: #0d1020;
  --panel: #12162a;
  --panel-raised: #181d35;
  --panel-quiet: #0e1224;
  --edge: #2b3151;
  --edge-strong: #424a75;
  --ink: #f4f3ff;
  --ink-soft: #b5b8d1;
  --ink-faint: #7f849f;
  --mint: #6ee7d8;
  --mint-deep: #153e42;
  --violet: #a99af6;
  --amber: #ffc94d;
  --danger: #ff8d9b;
  --danger-deep: #391b2a;
  --good: #80e2aa;
  --shadow: 0 30px 90px rgba(0, 0, 0, .34);
  --radius: 18px;
  --sans: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --mono: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
}

* { box-sizing: border-box; }
html { min-width: 280px; background: var(--canvas); -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(900px 420px at 86% -12%, rgba(169, 154, 246, .12), transparent 66%),
    linear-gradient(180deg, #0b0d18 0, var(--canvas) 620px);
  color: var(--ink);
  font: 15px/1.55 var(--sans);
}
button, input, select, textarea { font: inherit; }
button, select, input[type="color"], input[type="radio"] { cursor: pointer; }
button:disabled { cursor: not-allowed; opacity: .45; }
code, textarea { font-family: var(--mono); }
[hidden] { display: none !important; }

.skip-link {
  position: fixed;
  z-index: 100;
  top: 10px;
  left: 10px;
  transform: translateY(-160%);
  padding: 10px 14px;
  border-radius: 9px;
  background: var(--mint);
  color: #071416;
  font-weight: 800;
}
.skip-link:focus { transform: translateY(0); }

:focus-visible {
  outline: 3px solid var(--amber);
  outline-offset: 3px;
}

.site-head {
  width: min(1240px, calc(100% - 40px));
  margin: 0 auto;
  min-height: 84px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  border-bottom: 1px solid rgba(66, 74, 117, .58);
}
.brand-lockup { display: flex; align-items: center; gap: 11px; }
.brand-lockup > span:last-child { display: grid; line-height: 1.22; }
.brand-lockup strong { font-size: 14px; letter-spacing: .01em; }
.brand-lockup small { color: var(--ink-faint); font: 11px/1.4 var(--mono); text-transform: uppercase; letter-spacing: .1em; }
.brand-mark {
  width: 34px;
  height: 34px;
  display: grid;
  place-items: center;
  border: 1px solid var(--edge-strong);
  border-radius: 11px;
  background: var(--panel-raised);
  color: var(--mint);
  font: 800 14px/1 var(--mono);
  box-shadow: inset 0 0 22px rgba(110, 231, 216, .08);
}
.truth-badges { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 7px; }
.truth-badges span {
  padding: 5px 8px;
  border: 1px solid var(--edge);
  border-radius: 999px;
  color: var(--ink-soft);
  font: 650 10px/1.2 var(--mono);
  letter-spacing: .04em;
  text-transform: uppercase;
}

.studio-shell {
  width: min(1240px, calc(100% - 40px));
  margin: 42px auto 72px;
  display: grid;
  grid-template-columns: 244px minmax(0, 1fr);
  gap: 50px;
  align-items: start;
}
.flow-rail { position: sticky; top: 24px; }
.rail-kicker, .eyebrow, .step-no, .mini-label, .card-tag {
  margin: 0;
  color: var(--mint);
  font: 700 10px/1.4 var(--mono);
  letter-spacing: .13em;
  text-transform: uppercase;
}
.step-list { list-style: none; margin: 15px 0 24px; padding: 0; display: grid; gap: 5px; }
.step-list button {
  width: 100%;
  min-height: 44px;
  display: grid;
  grid-template-columns: 34px 1fr;
  align-items: center;
  text-align: left;
  padding: 7px 10px;
  border: 1px solid transparent;
  border-radius: 10px;
  background: transparent;
  color: var(--ink-faint);
  font-weight: 650;
}
.step-list button span { color: #5e647e; font: 10px/1 var(--mono); }
.step-list button:not(:disabled):hover { background: rgba(24, 29, 53, .7); color: var(--ink); }
.step-list button[aria-current="step"] {
  border-color: var(--edge-strong);
  background: var(--panel-raised);
  color: var(--ink);
  box-shadow: 0 8px 24px rgba(0, 0, 0, .16);
}
.step-list button[aria-current="step"] span { color: var(--mint); }
.step-list button[data-complete="true"] { color: var(--ink-soft); }
.step-list button[data-complete="true"] span { color: var(--good); }
.rail-note {
  display: grid;
  grid-template-columns: 10px 1fr;
  gap: 10px;
  padding: 14px;
  border: 1px solid var(--edge);
  border-radius: 13px;
  background: rgba(14, 18, 36, .72);
}
.rail-note p { margin: 0; color: var(--ink-faint); font-size: 11.5px; line-height: 1.55; }
.rail-note strong { color: var(--ink-soft); }
.pulse-dot { width: 7px; height: 7px; margin-top: 5px; border-radius: 50%; background: var(--good); box-shadow: 0 0 0 4px rgba(128, 226, 170, .1); }

.workbench { min-width: 0; }
.hero-copy { max-width: 760px; margin-bottom: 28px; }
.hero-copy h1 {
  margin: 9px 0 12px;
  font-size: clamp(32px, 5vw, 58px);
  line-height: 1.02;
  letter-spacing: -.045em;
  font-weight: 750;
  text-wrap: balance;
}
.hero-copy > p:last-child { max-width: 660px; margin: 0; color: var(--ink-soft); font-size: 16px; }

.message {
  margin: 0 0 14px;
  padding: 12px 14px;
  border-radius: 11px;
  font-size: 13px;
}
.message-error { border: 1px solid rgba(255, 141, 155, .48); background: var(--danger-deep); color: #ffd4db; }
.message-status { border: 1px solid var(--edge); background: var(--panel-quiet); color: var(--ink-soft); }

.step-panel {
  min-height: 500px;
  padding: clamp(22px, 4vw, 38px);
  border: 1px solid var(--edge);
  border-radius: 24px;
  background: linear-gradient(145deg, rgba(18, 22, 42, .98), rgba(13, 16, 32, .98));
  box-shadow: var(--shadow);
}
.panel-head { display: grid; grid-template-columns: minmax(0, 1fr) minmax(220px, .75fr); gap: 28px; align-items: end; margin-bottom: 28px; }
.panel-head h2 { margin: 7px 0 0; font-size: clamp(24px, 3vw, 34px); line-height: 1.1; letter-spacing: -.025em; }
.panel-head > p { margin: 0; color: var(--ink-soft); font-size: 13px; }

.starter-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; }
.starter-card {
  min-height: 174px;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 8px;
  padding: 17px;
  border: 1px solid var(--edge);
  border-radius: 15px;
  background: var(--panel-quiet);
  color: var(--ink);
  text-align: left;
}
.starter-card:hover, .starter-card[aria-pressed="true"] { border-color: var(--mint); background: var(--panel-raised); transform: translateY(-2px); }
.starter-card[aria-pressed="true"] { box-shadow: inset 0 0 0 1px var(--mint); }
.starter-card .starter-type { color: var(--violet); font: 700 10px/1 var(--mono); text-transform: uppercase; letter-spacing: .1em; }
.starter-card strong { font-size: 17px; }
.starter-card small { color: var(--ink-faint); line-height: 1.5; }
.starter-card .starter-go { margin-top: auto; color: var(--mint); font: 650 11px/1.3 var(--mono); }
.empty-state {
  grid-column: 1 / -1;
  min-height: 160px;
  display: grid;
  place-items: center;
  align-content: center;
  gap: 4px;
  padding: 22px;
  border: 1px dashed var(--edge-strong);
  border-radius: 15px;
  color: var(--ink-faint);
  text-align: center;
}
.empty-state strong { color: var(--ink-soft); }
.empty-glyph { color: var(--mint); font: 26px/1 var(--mono); }
.blank-card {
  margin-top: 13px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(260px, .75fr);
  gap: 22px;
  align-items: center;
  padding: 19px;
  border: 1px solid var(--edge-strong);
  border-radius: 15px;
  background: linear-gradient(110deg, rgba(169, 154, 246, .09), rgba(110, 231, 216, .05));
}
.blank-card h3, .export-copy h3, .download-card h3, .boundary-card h3 { margin: 5px 0 4px; font-size: 18px; }
.blank-card p, .download-card p, .boundary-card p { margin: 0; color: var(--ink-soft); font-size: 13px; }
.blank-action { display: grid; grid-template-columns: 1fr auto; gap: 8px; align-items: end; }
.blank-action label { grid-column: 1 / -1; }

label, legend { color: var(--ink); font-weight: 700; font-size: 12.5px; }
input[type="text"], select, textarea {
  width: 100%;
  min-height: 45px;
  border: 1px solid var(--edge-strong);
  border-radius: 10px;
  background: #0b0e1d;
  color: var(--ink);
  padding: 10px 12px;
}
textarea { min-height: 150px; resize: vertical; font-size: 12px; line-height: 1.5; }
input[type="text"]:hover, select:hover, textarea:hover { border-color: #59618c; }
.field { display: grid; gap: 7px; }
.field small, .fine-print { color: var(--ink-faint); font-size: 11.5px; line-height: 1.5; }
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.field-inline { grid-template-columns: 1fr auto; align-items: center; }
.field-inline small { display: block; margin-top: 2px; }
input[type="color"] { width: 62px; height: 44px; padding: 4px; border: 1px solid var(--edge-strong); border-radius: 10px; background: #0b0e1d; }
fieldset { min-width: 0; margin: 0; padding: 0; border: 0; }
.choice-field { gap: 8px; }
.segmented { display: grid; grid-template-columns: repeat(3, 1fr); gap: 7px; }
.segmented label { position: relative; }
.segmented input { position: absolute; opacity: 0; pointer-events: none; }
.segmented span {
  min-height: 44px;
  display: grid;
  place-items: center;
  border: 1px solid var(--edge);
  border-radius: 10px;
  background: var(--panel-quiet);
  color: var(--ink-soft);
}
.segmented input:focus-visible + span { outline: 3px solid var(--amber); outline-offset: 2px; }
.segmented input:checked + span { border-color: var(--mint); background: var(--mint-deep); color: #cafff9; }

.customize-grid { display: grid; grid-template-columns: minmax(0, 1fr) 310px; gap: 24px; }
.control-stack { display: grid; gap: 19px; }
.intent-card {
  min-height: 420px;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 24px;
  border: 1px solid var(--edge);
  border-radius: 17px;
  background: var(--panel-quiet);
}
.intent-orb {
  --orb-accent: var(--mint);
  width: 168px;
  aspect-ratio: 1;
  display: grid;
  place-items: center;
  margin: 20px 0;
  border: 1px solid color-mix(in srgb, var(--orb-accent), transparent 30%);
  border-radius: 50%;
  background: radial-gradient(circle at 42% 35%, color-mix(in srgb, var(--orb-accent), white 20%), color-mix(in srgb, var(--orb-accent), transparent 84%) 33%, #10142a 70%);
  box-shadow: 0 0 42px color-mix(in srgb, var(--orb-accent), transparent 76%), inset 0 0 32px rgba(255, 255, 255, .05);
}
.intent-orb span { width: 44%; aspect-ratio: 1; border: 1px solid color-mix(in srgb, var(--orb-accent), white 26%); border-radius: 50%; background: rgba(8, 10, 19, .35); }
.intent-name { margin: 0 0 17px; font-size: 20px; font-weight: 750; }
.intent-card dl, .export-meta { width: 100%; margin: 0; display: grid; gap: 7px; }
.intent-card dl div, .export-meta div { display: flex; justify-content: space-between; gap: 16px; padding: 8px 0; border-bottom: 1px solid var(--edge); }
dt { color: var(--ink-faint); font-size: 11px; }
dd { margin: 0; color: var(--ink-soft); font: 650 11px/1.4 var(--mono); text-align: right; }
.intent-card .fine-print { margin: auto 0 0; text-align: center; }

.preview-grid { display: grid; grid-template-columns: minmax(0, 1fr) 300px; gap: 18px; }
.preview-stage {
  min-height: 430px;
  position: relative;
  display: grid;
  place-items: center;
  overflow: hidden;
  border: 1px solid var(--edge-strong);
  border-radius: 18px;
  background:
    linear-gradient(rgba(169, 154, 246, .045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(169, 154, 246, .045) 1px, transparent 1px),
    radial-gradient(circle at 50% 42%, rgba(110, 231, 216, .08), transparent 45%),
    #090c19;
  background-size: 28px 28px, 28px 28px, auto, auto;
}
.preview-stage::before {
  content: '';
  position: absolute;
  width: min(72%, 360px);
  aspect-ratio: 1;
  border: 1px solid color-mix(in srgb, var(--stage-accent, var(--mint)), transparent 45%);
  border-radius: 22%;
  box-shadow: 0 0 70px color-mix(in srgb, var(--stage-accent, var(--mint)), transparent 88%);
  pointer-events: none;
}
.preview-stage[data-presence="orb"]::before { border-radius: 50%; }
.preview-stage[data-presence="face"]::before { border-radius: 8px; }
.preview-mount { width: min(70%, 340px); height: 340px; position: relative; z-index: 1; }
.preview-mount netshow-alive { width: 100%; height: 100%; }
.preview-empty { min-height: 100%; }
.stage-caption { position: absolute; left: 15px; bottom: 13px; z-index: 2; color: var(--ink-faint); font: 10px/1.4 var(--mono); }
.tier-card { display: flex; flex-direction: column; gap: 16px; padding: 20px; border: 1px solid var(--edge); border-radius: 17px; background: var(--panel-quiet); }
.recommendation { padding: 13px; border-left: 3px solid var(--violet); background: rgba(169, 154, 246, .07); }
.recommendation strong { display: block; margin: 4px 0; text-transform: capitalize; }
.recommendation p { margin: 0; color: var(--ink-faint); font-size: 11.5px; }
.tier-card .button { margin-top: auto; }

.button {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border-radius: 10px;
  padding: 10px 16px;
  font-weight: 750;
  border: 1px solid transparent;
}
.button-primary { background: var(--mint); color: #07191a; }
.button-primary:not(:disabled):hover { background: #9af5e9; }
.button-secondary { border-color: var(--edge-strong); background: var(--panel-raised); color: var(--ink); }
.button-secondary:not(:disabled):hover { border-color: var(--mint); }
.button-ghost { border-color: transparent; background: transparent; color: var(--ink-soft); }
.button-ghost:not(:disabled):hover { background: var(--panel-raised); color: var(--ink); }

.validation-card { max-width: 680px; margin: 0 auto; }
.check-list { list-style: none; margin: 0 0 22px; padding: 0; display: grid; gap: 8px; }
.check-list li { display: grid; grid-template-columns: 28px 1fr; align-items: center; gap: 10px; padding: 13px; border: 1px solid var(--edge); border-radius: 12px; background: var(--panel-quiet); }
.check-list li > span { color: var(--ink-faint); font: 18px/1 var(--mono); }
.check-list li strong, .check-list li small { display: block; }
.check-list li small { margin-top: 2px; color: var(--ink-faint); }
.check-list li[data-state="pass"] { border-color: rgba(128, 226, 170, .42); }
.check-list li[data-state="pass"] > span { color: var(--good); }
.check-list li[data-state="fail"] { border-color: rgba(255, 141, 155, .5); }
.check-list li[data-state="fail"] > span { color: var(--danger); }
.result-box { margin-top: 14px; padding: 14px; border: 1px solid var(--edge-strong); border-radius: 12px; background: var(--panel-raised); color: var(--ink-soft); }

.export-card, .download-card {
  max-width: 720px;
  margin: 26px auto 0;
  display: grid;
  grid-template-columns: 180px minmax(0, 1fr);
  gap: 28px;
  align-items: center;
  padding: 28px;
  border: 1px solid var(--edge-strong);
  border-radius: 18px;
  background: var(--panel-quiet);
}
.package-icon {
  width: 160px;
  aspect-ratio: .82;
  display: grid;
  place-items: end center;
  padding: 18px;
  border: 1px solid var(--edge-strong);
  border-radius: 10px 28px 10px 10px;
  background: linear-gradient(145deg, rgba(169, 154, 246, .24), rgba(110, 231, 216, .08));
  box-shadow: inset 0 0 45px rgba(169, 154, 246, .08);
}
.package-icon span { color: var(--mint); font: 700 13px/1 var(--mono); }
.export-meta { grid-template-columns: 1fr 1fr; margin: 14px 0 18px; }
.export-meta div { display: block; }
.export-meta dd { margin-top: 3px; text-align: left; overflow-wrap: anywhere; }
.download-ring { width: 140px; aspect-ratio: 1; display: grid; place-items: center; border: 1px solid var(--mint); border-radius: 50%; color: var(--mint); font: 300 54px/1 var(--sans); box-shadow: inset 0 0 50px rgba(110, 231, 216, .08); }
.download-card .button { margin-top: 18px; }

.handoff-choices { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin-bottom: 16px; }
.handoff-choices legend { margin-bottom: 9px; }
.handoff-card { position: relative; display: grid; min-height: 134px; }
.handoff-card input { position: absolute; top: 14px; right: 14px; accent-color: var(--mint); }
.handoff-card > span { display: block; padding: 20px 34px 18px 18px; border: 1px solid var(--edge); border-radius: 14px; background: var(--panel-quiet); }
.handoff-card strong, .handoff-card small { display: block; }
.handoff-card small { margin-top: 8px; color: var(--ink-faint); font-weight: 500; line-height: 1.45; }
.handoff-card:has(input:checked) > span { border-color: var(--mint); background: var(--mint-deep); }
.boundary-card { margin-top: 18px; padding: 20px; border: 1px solid var(--edge-strong); border-radius: 15px; background: var(--panel-quiet); }
.boundary-card textarea { margin: 11px 0; }

.flow-actions { min-height: 76px; display: grid; grid-template-columns: 1fr auto 1fr; gap: 12px; align-items: center; }
.flow-actions #step-back { justify-self: start; }
.flow-actions #step-next { justify-self: end; }
.flow-actions span { color: var(--ink-faint); font: 11px/1.4 var(--mono); }

.site-foot { width: min(1240px, calc(100% - 40px)); margin: 0 auto; padding: 28px 0 44px; border-top: 1px solid var(--edge); color: var(--ink-faint); font-size: 12px; }
.site-foot p { max-width: 830px; margin: 0; }
.site-foot strong { color: var(--ink-soft); }

@media (max-width: 980px) {
  .studio-shell { grid-template-columns: 1fr; gap: 22px; margin-top: 24px; }
  .flow-rail { position: static; min-width: 0; max-width: 100%; overflow-x: auto; overscroll-behavior-inline: contain; scrollbar-width: thin; }
  .rail-kicker, .rail-note { display: none; }
  .step-list { min-width: 0; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 5px; margin: 0 0 4px; }
  .step-list button { min-height: 48px; grid-template-columns: 1fr; place-items: center; padding: 7px 5px; font-size: 12px; text-align: center; }
  .step-list button span { font-size: 10px; }
  .starter-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 720px) {
  .site-head, .studio-shell, .site-foot { width: min(100% - 26px, 1240px); }
  .site-head { min-height: 72px; }
  .truth-badges span:nth-child(2), .truth-badges span:nth-child(3) { display: none; }
  .hero-copy h1 { font-size: clamp(32px, 10vw, 44px); }
  .step-panel { min-height: 0; padding: 20px 16px; border-radius: 18px; }
  .panel-head { grid-template-columns: 1fr; gap: 10px; align-items: start; }
  .starter-grid { grid-template-columns: 1fr; }
  .starter-card { min-height: 144px; }
  .blank-card, .customize-grid, .preview-grid, .export-card, .download-card { grid-template-columns: 1fr; }
  .blank-action { grid-template-columns: 1fr; }
  .blank-action label { grid-column: auto; }
  .intent-card { min-height: 360px; }
  .preview-stage { min-height: 360px; }
  .preview-mount { width: min(78%, 300px); height: 300px; }
  .export-card, .download-card { padding: 20px; }
  .package-icon { width: 130px; margin: 0 auto; }
  .download-ring { width: 116px; margin: 0 auto; }
  .handoff-choices { grid-template-columns: 1fr; }
  .handoff-card { min-height: 94px; }
}

@media (max-width: 420px) {
  .site-head, .studio-shell, .site-foot { width: min(100% - 18px, 1240px); }
  .brand-lockup small { display: none; }
  .step-list { gap: 3px; }
  .step-list button { min-width: 0; }
  .hero-copy { margin-bottom: 20px; }
  .hero-copy > p:last-child { font-size: 14px; }
  .field-row, .export-meta { grid-template-columns: 1fr; }
  .segmented { gap: 4px; }
  .flow-actions { grid-template-columns: 1fr 1fr; }
  .flow-actions span { grid-column: 1 / -1; grid-row: 1; text-align: center; }
  .flow-actions #step-back, .flow-actions #step-next { grid-row: 2; width: 100%; }
}

@media (prefers-reduced-motion: no-preference) {
  .starter-card, .button, .step-list button, .skip-link { transition: background-color .16s ease, border-color .16s ease, color .16s ease, transform .16s ease; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
}

@media (forced-colors: active) {
  .button-primary { border-color: ButtonText; }
  .intent-orb, .preview-stage::before { forced-color-adjust: none; }
}

/* NET-199: visible mobile labels and a coherent return door. */
.studio-return{width:min(1240px,calc(100% - 26px));margin:12px auto;display:flex;flex-wrap:wrap;gap:8px 24px;font-size:13px}.studio-return a{display:inline-flex;align-items:center;min-height:44px;color:var(--ink-soft);text-underline-offset:4px}