@import url("https://fonts.googleapis.com/css2?family=DM+Mono:wght@300;400;500&family=Inter:wght@400;500;600&display=swap");

:root {
  color-scheme: dark;
  --bg: #080a0b;
  --panel: rgba(14, 17, 19, 0.96);
  --panel-2: #121619;
  --line: rgba(210, 230, 225, 0.12);
  --line-bright: rgba(216, 241, 233, 0.28);
  --text: #e9efec;
  --muted: #87908d;
  --acid: #c7ff5d;
  --cyan: #69e7dc;
  --orange: #ff9d61;
  --violet: #b69cff;
  --red: #ff6b66;
  --mono: "DM Mono", ui-monospace, monospace;
  --sans: Inter, system-ui, sans-serif;
  --topbar-height: 58px;
  --radius: 8px;
}

* { box-sizing: border-box; }
html, body, #app { width: 100%; height: 100%; margin: 0; overflow: hidden; }
body, #app { height: 100dvh; }
body {
  background: var(--bg);
  color: var(--text);
  font: 13px var(--sans);
}
button, input { font: inherit; }
button { color: inherit; }
button:focus-visible, input:focus-visible, canvas:focus-visible, summary:focus-visible {
  outline: 2px solid var(--acid);
  outline-offset: 2px;
}
[hidden] { display: none !important; }

.topbar {
  position: relative;
  z-index: 50;
  height: var(--topbar-height);
  display: grid;
  grid-template-columns: minmax(165px, 1fr) minmax(220px, 520px) minmax(300px, 1fr);
  align-items: center;
  gap: 16px;
  padding: 0 16px;
  border-bottom: 1px solid var(--line);
  background: rgba(8, 10, 11, 0.93);
  backdrop-filter: blur(16px);
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  width: max-content;
  color: var(--text);
  text-decoration: none;
  font-size: 16px;
  letter-spacing: -0.04em;
}
.brand strong { font-weight: 600; }
.brand em { color: var(--muted); font-style: normal; font-weight: 400; }
.brand-mark {
  position: relative;
  width: 25px;
  height: 25px;
  display: grid;
  place-items: center;
  border: 1px solid var(--line-bright);
  border-radius: 50%;
}
.brand-mark::before, .brand-mark::after {
  content: "";
  position: absolute;
  width: 5px;
  height: 5px;
  border: 1px solid var(--acid);
  border-radius: 50%;
}
.brand-mark::before { left: -3px; }
.brand-mark::after { right: -3px; }
.brand-mark i { width: 3px; height: 3px; background: var(--acid); border-radius: 50%; }
.brand-mark i:first-child { position: absolute; top: 3px; }
.brand-mark i:last-child { position: absolute; bottom: 3px; }

.experiment-name { min-width: 0; }
.experiment-name input {
  width: 100%;
  padding: 6px 10px;
  overflow: hidden;
  border: 1px solid transparent;
  border-radius: 5px;
  outline: 0;
  background: transparent;
  color: rgba(233, 239, 236, 0.78);
  text-align: center;
  text-overflow: ellipsis;
  font-size: 11px;
}
.experiment-name input:hover { border-color: var(--line); }
.experiment-name input:focus { border-color: var(--line-bright); color: var(--text); background: rgba(255,255,255,.025); }

.top-actions { justify-self: end; display: flex; align-items: center; gap: 6px; }
.toolbar-button, .icon-button, .primary-button, .secondary-button, .danger-button, .inject-button {
  min-height: 34px;
  border: 1px solid var(--line);
  border-radius: 5px;
  background: rgba(255,255,255,.025);
  color: var(--text);
  cursor: pointer;
  transition: border-color .16s, background .16s, transform .16s, color .16s;
}
.toolbar-button { display: inline-flex; align-items: center; justify-content: center; gap: 7px; padding: 0 11px; font-size: 10px; }
.toolbar-button:hover, .icon-button:hover, .secondary-button:hover { border-color: var(--line-bright); background: rgba(255,255,255,.06); }
.icon-button { min-width: 34px; padding: 0 8px; }
.menu-button { letter-spacing: .12em; padding-bottom: 5px; }
.primary-button {
  padding: 0 14px;
  border-color: var(--acid);
  background: var(--acid);
  color: #10130c;
  font-size: 10px;
  font-weight: 600;
}
.primary-button:hover { filter: brightness(1.06); transform: translateY(-1px); }
.secondary-button, .danger-button { padding: 0 12px; font-size: 10px; }
.danger-button { border-color: rgba(255,107,102,.24); background: transparent; color: var(--red); }
.danger-button:hover { border-color: var(--red); background: rgba(255,107,102,.06); }

.workspace { position: relative; height: calc(100% - var(--topbar-height)); }
.lab-shell { position: absolute; inset: 0; overflow: hidden; background: #090c0e; }
#field-canvas, #lab-canvas { position: absolute; inset: 0; width: 100%; height: 100%; }
#lab-canvas { z-index: 2; cursor: crosshair; outline: none; touch-action: none; }

.lab-meta {
  position: absolute;
  z-index: 4;
  top: 14px;
  left: 16px;
  right: 16px;
  display: flex;
  justify-content: space-between;
  color: rgba(202,214,210,.34);
  font: 8px var(--mono);
  pointer-events: none;
}
.empty-state {
  position: absolute;
  z-index: 3;
  right: 16px;
  top: 44%;
  transform: translate(-50%, -50%);
  text-align: center;
  color: var(--muted);
  pointer-events: none;
  transition: opacity .2s;
}
.empty-state.hidden { opacity: 0; }
.empty-state strong { display: block; margin-top: 14px; color: var(--text); font-size: 13px; font-weight: 500; }
.empty-state p { margin: 7px 0 0; font-size: 10px; }
.empty-orbit {
  position: relative;
  display: block;
  width: 66px;
  height: 66px;
  margin: auto;
  border: 1px solid var(--line-bright);
  border-radius: 50%;
}
.empty-orbit::after {
  content: "";
  position: absolute;
  left: 3px;
  top: 11px;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--acid);
  box-shadow: 0 0 12px var(--acid);
  transform-origin: 29px 22px;
  animation: orbit 5s linear infinite;
}
@keyframes orbit { to { transform: rotate(360deg); } }

.coachmark {
  position: absolute;
  z-index: 6;
  top: 42px;
  left: 50%;
  display: flex;
  align-items: center;
  gap: 9px;
  max-width: min(440px, calc(100vw - 32px));
  padding: 9px 12px;
  border: 1px solid var(--line);
  border-radius: 99px;
  background: rgba(10,13,14,.76);
  color: var(--muted);
  backdrop-filter: blur(12px);
  pointer-events: none;
  transition: opacity .18s, transform .18s;
}
.coachmark[hidden] { opacity: 0; transform: translateY(-6px); }
.coachmark > span { color: var(--acid); font-size: 14px; }
.coachmark p { margin: 0; font-size: 9px; line-height: 1.4; }
.coachmark strong { color: var(--text); font-weight: 500; }

.measurement-dock {
  position: absolute;
  z-index: 8;
  top: 40px;
  left: 16px;
  display: flex;
  align-items: stretch;
  min-height: 57px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(10,13,14,.86);
  box-shadow: 0 16px 45px rgba(0,0,0,.24);
  backdrop-filter: blur(16px);
}
.measurement-head {
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 0 13px;
  border-right: 1px solid var(--line);
  color: var(--muted);
  font: 8px var(--mono);
}
.live-dot { width: 6px; height: 6px; border-radius: 50%; background: var(--acid); box-shadow: 0 0 10px var(--acid); }
.measurement-value { min-width: 84px; padding: 10px 12px; border-right: 1px solid var(--line); }
.measurement-value span { display: block; color: var(--muted); font: 7px var(--mono); text-transform: uppercase; }
.measurement-value strong { display: block; margin-top: 6px; font: 500 11px var(--mono); white-space: nowrap; }
.inject-button {
  margin: 9px;
  min-height: 37px;
  padding: 0 12px;
  border-color: rgba(199,255,93,.28);
  color: var(--acid);
  font: 8px var(--mono);
}
.inject-button:hover { border-color: var(--acid); background: rgba(199,255,93,.08); }

.component-tray {
  position: absolute;
  z-index: 10;
  left: 50%;
  bottom: max(14px, env(safe-area-inset-bottom));
  display: flex;
  align-items: stretch;
  width: min(900px, calc(100vw - 28px));
  min-height: 78px;
  padding: 8px;
  transform: translateX(-50%);
  border: 1px solid var(--line);
  border-radius: 12px;
  background: rgba(10,13,14,.9);
  box-shadow: 0 24px 70px rgba(0,0,0,.36);
  backdrop-filter: blur(18px);
  touch-action: pan-x;
}
.tray-label {
  flex: 0 0 96px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 0 12px 0 8px;
  border-right: 1px solid var(--line);
}
.tray-label span { color: var(--text); font: 9px var(--mono); letter-spacing: .16em; }
.tray-label small { margin-top: 6px; color: var(--muted); font: 8px var(--mono); line-height: 1.35; }
.catalog {
  min-width: 0;
  flex: 1;
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: minmax(106px, 1fr);
  gap: 5px;
  overflow-x: auto;
  padding-left: 8px;
  scrollbar-width: none;
  touch-action: pan-x;
}
.catalog::-webkit-scrollbar { display: none; }
.catalog-item {
  min-width: 0;
  min-height: 60px;
  display: grid;
  grid-template-columns: 30px 1fr;
  gap: 8px;
  align-items: center;
  padding: 7px 9px;
  border: 1px solid transparent;
  border-radius: 7px;
  background: transparent;
  color: var(--text);
  text-align: left;
  cursor: grab;
  touch-action: pan-x;
  user-select: none;
}
.catalog-item:hover { border-color: var(--line); background: rgba(255,255,255,.04); }
.catalog-item:active { cursor: grabbing; transform: translateY(-2px); }
.catalog-glyph {
  width: 30px;
  height: 30px;
  display: grid;
  place-items: center;
  border: 1px solid color-mix(in srgb, var(--kind-color) 50%, transparent);
  border-radius: 50%;
  color: var(--kind-color);
  font: 11px var(--mono);
}
.catalog-item strong {
  display: -webkit-box;
  overflow: hidden;
  color: rgba(233,239,236,.86);
  font-size: 9px;
  font-weight: 500;
  line-height: 1.25;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
}
.catalog-item small, .catalog-item .port-count { display: none; }

.drag-label {
  position: fixed;
  z-index: 100;
  padding: 8px 11px;
  border-radius: 4px;
  background: var(--text);
  color: #101313;
  box-shadow: 0 10px 40px rgba(0,0,0,.5);
  font: 9px var(--mono);
  pointer-events: none;
}
.toast {
  position: absolute;
  z-index: 80;
  left: 50%;
  top: 18px;
  padding: 9px 13px;
  transform: translate(-50%, -15px);
  opacity: 0;
  border-radius: 5px;
  background: #e9efec;
  color: #111;
  font: 9px var(--mono);
  pointer-events: none;
  transition: .2s;
}
.toast.show { opacity: 1; transform: translate(-50%, 0); }

.panel { background: var(--panel); }
.inspector-panel {
  position: absolute;
  z-index: 35;
  top: 14px;
  right: 14px;
  bottom: 106px;
  width: min(318px, calc(100vw - 28px));
  padding: 18px 16px;
  overflow: auto;
  border: 1px solid var(--line);
  border-radius: 10px;
  box-shadow: 0 24px 80px rgba(0,0,0,.45);
  transform: translateX(calc(100% + 30px));
  opacity: 0;
  pointer-events: none;
  transition: transform .22s ease, opacity .18s ease;
  scrollbar-width: thin;
  scrollbar-color: var(--line-bright) transparent;
}
.inspector-panel.open { transform: translateX(0); opacity: 1; pointer-events: auto; }
.panel-heading { display: flex; justify-content: space-between; align-items: flex-start; gap: 12px; }
.panel-heading h2 { margin: 6px 0 0; font-size: 15px; font-weight: 500; letter-spacing: -.02em; }
.eyebrow { color: var(--muted); font: 8px var(--mono); letter-spacing: .17em; }
.selection-index { display: block; margin-top: 7px; color: var(--muted); font: 8px var(--mono); }
.body-status {
  display: flex;
  justify-content: space-between;
  margin: 16px 0 12px;
  padding: 9px;
  border: 1px solid var(--line);
  border-radius: 4px;
  background: rgba(255,255,255,.025);
  color: var(--muted);
  font: 8px var(--mono);
}
.body-status .live { color: var(--acid); }
.parameter { padding: 11px 0; border-top: 1px solid var(--line); }
.parameter-head { display: flex; justify-content: space-between; align-items: baseline; margin-bottom: 9px; }
.parameter label { color: var(--muted); font-size: 9px; }
.parameter output { color: var(--text); font: 9px var(--mono); }
.parameter input[type="range"] {
  width: 100%;
  height: 28px;
  appearance: none;
  background: linear-gradient(var(--line-bright), var(--line-bright)) center / 100% 2px no-repeat;
  accent-color: var(--acid);
}
.parameter input[type="range"]::-webkit-slider-thumb {
  width: 14px;
  height: 14px;
  appearance: none;
  border: 2px solid #0e1111;
  border-radius: 50%;
  background: var(--acid);
}
.inspector-actions { display: grid; grid-template-columns: 1fr auto; gap: 6px; margin-top: 14px; }

.menu-scrim {
  position: fixed;
  z-index: 60;
  inset: 0;
  opacity: 0;
  background: rgba(0,0,0,.48);
  backdrop-filter: blur(2px);
  pointer-events: none;
  transition: opacity .2s;
}
.menu-scrim.open { opacity: 1; pointer-events: auto; }
.app-menu {
  position: fixed;
  z-index: 70;
  top: 0;
  right: 0;
  bottom: 0;
  width: min(390px, 92vw);
  padding: 20px 18px 30px;
  overflow-y: auto;
  border-left: 1px solid var(--line);
  background: rgba(10,13,14,.985);
  box-shadow: -28px 0 90px rgba(0,0,0,.5);
  transform: translateX(100%);
  visibility: hidden;
  transition: transform .24s ease, visibility 0s linear .24s;
  scrollbar-width: thin;
  scrollbar-color: var(--line-bright) transparent;
}
.app-menu.open { transform: translateX(0); visibility: visible; transition-delay: 0s; }
.menu-head { display: flex; justify-content: space-between; gap: 18px; align-items: flex-start; }
.menu-head h2 { margin: 6px 0 0; font-size: 15px; font-weight: 500; }
.engine-badge {
  height: 30px;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  margin-top: 14px;
  padding: 0 9px;
  border: 1px solid var(--line);
  border-radius: 4px;
  color: var(--muted);
  font: 8px var(--mono);
  text-transform: uppercase;
}
.engine-badge i { width: 6px; height: 6px; border-radius: 50%; background: var(--orange); box-shadow: 0 0 10px var(--orange); }
.engine-badge.ready i { background: var(--acid); box-shadow: 0 0 10px var(--acid); }
.menu-section { padding: 17px 0; border-top: 1px solid var(--line); }
.engine-badge + .menu-section { margin-top: 16px; }
.menu-kicker { display: block; margin-bottom: 10px; color: var(--muted); font: 8px var(--mono); letter-spacing: .16em; }
.menu-action {
  width: 100%;
  min-height: 58px;
  display: flex;
  align-items: center;
  gap: 11px;
  padding: 10px 11px;
  border: 1px solid rgba(199,255,93,.22);
  border-radius: 6px;
  background: linear-gradient(105deg, rgba(199,255,93,.07), transparent);
  color: var(--text);
  text-align: left;
  cursor: pointer;
}
.menu-action:hover { border-color: var(--acid); }
.menu-action-icon { color: var(--acid); font-size: 17px; }
.menu-action strong { display: block; font-size: 10px; font-weight: 500; }
.menu-action small { display: block; margin-top: 4px; color: var(--muted); font: 8px var(--mono); }
.menu-action-row { display: grid; grid-template-columns: 1fr 1fr; gap: 6px; margin-top: 7px; }
.segmented-control { display: grid; grid-template-columns: repeat(4, 1fr); gap: 3px; padding: 3px; border: 1px solid var(--line); border-radius: 6px; }
.segmented-control + .segmented-control { margin-top: 6px; }
.segmented-control button {
  min-height: 34px;
  padding: 0 6px;
  border: 0;
  border-radius: 3px;
  background: transparent;
  color: var(--muted);
  font: 8px var(--mono);
  cursor: pointer;
}
.segmented-control button.active { background: rgba(255,255,255,.08); color: var(--text); }
.segmented-control button:disabled { opacity: .28; cursor: not-allowed; }
.segmented-control.compact button { min-height: 29px; font-size: 7px; }
.zoom-controls { display: grid; grid-template-columns: 42px 1fr 42px; gap: 6px; margin-top: 7px; }
.disclosure { padding: 0; }
.disclosure summary { padding: 16px 2px; color: rgba(233,239,236,.86); font-size: 10px; cursor: pointer; list-style-position: outside; }
.disclosure p, .disclosure ol { margin: -4px 0 16px; color: var(--muted); font: 9px/1.65 var(--mono); }
.disclosure ol { padding-left: 20px; }
.challenge { display: flex; align-items: center; gap: 9px; padding: 10px; border: 1px solid var(--line); border-radius: 5px; }
.challenge.solved { border-color: rgba(199,255,93,.4); background: rgba(199,255,93,.04); }
.challenge-mark { color: var(--muted); font-size: 17px; }
.challenge.solved .challenge-mark { color: var(--acid); }
.challenge small { display: block; color: var(--muted); font: 7px var(--mono); }
.challenge strong { display: block; margin-top: 4px; font-size: 9px; font-weight: 500; }
.history-head { display: flex; justify-content: space-between; }
#history-list { max-height: 160px; margin: 0; padding: 0; overflow: auto; list-style: none; }
#history-list li { position: relative; padding: 7px 0 7px 13px; border-left: 1px solid var(--line); color: var(--muted); font: 8px/1.4 var(--mono); }
#history-list li::before { content: ""; position: absolute; left: -3px; top: 11px; width: 5px; height: 5px; border-radius: 50%; background: var(--line-bright); }
#history-list li:first-child::before { background: var(--acid); }
#history-list .muted { padding-left: 0; border: 0; }
#history-list .muted::before { display: none; }

.dive-dialog {
  width: min(1050px, calc(100vw - 40px));
  padding: 0;
  border: 1px solid var(--line-bright);
  border-radius: 8px;
  background: rgba(10,13,14,.98);
  color: var(--text);
  box-shadow: 0 30px 100px #000;
}
.dive-dialog::backdrop { background: rgba(0,0,0,.72); backdrop-filter: blur(9px); }
.dive-top, .dive-footer { display: flex; justify-content: space-between; align-items: center; gap: 18px; padding: 15px 18px; }
.dive-top { border-bottom: 1px solid var(--line); }
.dive-top h2 { margin: 5px 0 0; font-size: 15px; font-weight: 500; }
.dive-footer { border-top: 1px solid var(--line); }
.dive-footer p { max-width: 680px; margin: 0; color: var(--muted); font: 9px/1.55 var(--mono); }
#dive-canvas { display: block; width: 100%; height: min(52vh, 520px); background: #07090a; }

@media (max-width: 1000px) {
  .topbar { grid-template-columns: minmax(150px, 1fr) minmax(160px, 300px) auto; }
  .measurement-dock { max-width: calc(100vw - 32px); overflow-x: auto; }
  .optional-measurement { display: none; }
}

@media (max-width: 720px) {
  :root { --topbar-height: 56px; }
  .topbar { grid-template-columns: 1fr auto; padding: 0 10px 0 12px; gap: 8px; }
  .experiment-name { display: none; }
  .brand { font-size: 14px; }
  .brand-mark { width: 23px; height: 23px; }
  .top-actions { gap: 4px; }
  .toolbar-button { min-width: 38px; padding: 0 8px; font-size: 9px; }
  .toolbar-button, .top-actions .primary-button, .top-actions .icon-button { min-height: 42px; }
  .inspector-panel .icon-button, .app-menu .icon-button { min-width: 42px; min-height: 42px; }
  .toolbar-button #run-label { display: none; }
  .primary-button { padding: 0 11px; }
  .menu-button { min-width: 32px; }
  .lab-meta { display: none; }
  .coachmark { left: 10px; right: 10px; top: 80px; max-width: none; }
  .measurement-dock {
    top: 17px;
    left: 10px;
    right: 10px;
    min-height: 52px;
  }
  .measurement-head { padding: 0 10px; }
  .measurement-head span:last-child { display: none; }
  .measurement-value { min-width: 0; flex: 1; padding: 9px; }
  .measurement-value:nth-of-type(3) { display: none; }
  .inject-button { padding: 0 9px; white-space: nowrap; }
  .component-tray {
    bottom: max(8px, env(safe-area-inset-bottom));
    width: calc(100vw - 16px);
    min-height: 70px;
    padding: 6px;
    border-radius: 10px;
  }
  .tray-label { display: none; }
  .catalog { grid-auto-columns: 96px; padding-left: 0; }
  .catalog-item { min-height: 56px; padding: 6px 7px; }
  .inspector-panel {
    top: auto;
    left: 8px;
    right: 8px;
    bottom: 84px;
    width: auto;
    max-height: min(68vh, 610px);
    transform: translateY(calc(100% + 110px));
  }
  .inspector-panel.open { transform: translateY(0); }
  .toast { top: 74px; }
  .dive-dialog { width: calc(100vw - 16px); }
  .dive-footer { align-items: flex-start; flex-direction: column; }
}

@media (max-width: 430px) {
  .toolbar-button { min-width: 34px; }
  #reset-button { font-size: 0; }
  #reset-button::before { content: "↻"; font-size: 16px; }
  .measurement-value:nth-of-type(4) { display: none; }
  .measurement-head { width: 26px; padding: 0 9px; }
  .inject-button { margin-left: 5px; font-size: 0; }
  .inject-button::after { content: "γ"; font-size: 14px; }
}

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