:root {
  --bg: #03070a;
  --bg-deep: #020406;
  --panel: rgba(7, 14, 18, 0.74);
  --panel-solid: #081116;
  --line: rgba(132, 202, 216, 0.14);
  --line-strong: rgba(132, 224, 240, 0.3);
  --line-soft: rgba(132, 202, 216, 0.07);
  --text: #e8f1f2;
  --text-dim: #a4b6ba;
  --muted: #647b81;
  --muted-dark: #3f545a;
  --cyan: #70f5ff;
  --cyan-strong: #32e4f3;
  --cyan-soft: #279dab;
  --cyan-wash: rgba(94, 233, 245, 0.11);
  --amber: #ffb567;
  --green: #7df0b0;
  --red: #ff806e;
  --sans: "Bahnschrift", "DIN Alternate", "Segoe UI", "Microsoft YaHei UI", "Microsoft YaHei", sans-serif;
  --mono: "Cascadia Mono", "SFMono-Regular", "Consolas", "Liberation Mono", monospace;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --header-h: 88px;
  --panel-w: 296px;
  --info-w: 326px;
  --pad: 28px;
}

* {
  box-sizing: border-box;
}

html,
body {
  width: 100%;
  height: 100%;
  margin: 0;
  background: var(--bg);
}

body {
  overflow: hidden;
  color: var(--text);
  font-family: var(--sans);
  font-size: 14px;
  line-height: 1.45;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  user-select: none;
}

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

button {
  font: inherit;
  color: inherit;
}

button:focus-visible,
a:focus-visible {
  outline: 1px solid var(--cyan);
  outline-offset: 3px;
}

svg {
  display: block;
}

.app {
  position: relative;
  width: 100%;
  height: 100%;
  min-height: 520px;
  overflow: hidden;
  isolation: isolate;
  background:
    radial-gradient(ellipse 70% 55% at 52% 42%, rgba(11, 42, 48, 0.48), transparent 66%),
    radial-gradient(ellipse 50% 42% at 83% 12%, rgba(28, 76, 84, 0.16), transparent 70%),
    linear-gradient(145deg, #03070a 0%, #04090c 46%, #020406 100%);
}

#scene {
  position: absolute;
  inset: 0;
  display: block;
  width: 100%;
  height: 100%;
  z-index: 1;
  cursor: grab;
  touch-action: none;
}

#scene.is-dragging {
  cursor: grabbing;
}

#scene.is-hovering {
  cursor: pointer;
}

.atmosphere {
  position: absolute;
  inset: 0;
  z-index: 2;
  pointer-events: none;
  overflow: hidden;
}

.atmosphere__grid {
  position: absolute;
  inset: -20%;
  opacity: 0.3;
  background-image:
    linear-gradient(to right, rgba(112, 201, 215, 0.035) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(112, 201, 215, 0.035) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse 55% 60% at 50% 46%, rgba(0, 0, 0, 0.9), transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse 55% 60% at 50% 46%, rgba(0, 0, 0, 0.9), transparent 75%);
  transform: perspective(800px) rotateX(3deg) scale(1.05);
}

.atmosphere__glow {
  position: absolute;
  left: 43%;
  top: 15%;
  width: 50vw;
  height: 65vh;
  transform: translateX(-50%);
  background: radial-gradient(ellipse at center, rgba(43, 147, 162, 0.13), transparent 65%);
  filter: blur(18px);
  mix-blend-mode: screen;
}

.atmosphere__scan {
  position: absolute;
  inset: 0;
  opacity: 0.2;
  background: repeating-linear-gradient(
    to bottom,
    transparent 0,
    transparent 3px,
    rgba(1, 5, 7, 0.32) 4px,
    transparent 5px
  );
  mix-blend-mode: multiply;
}

.atmosphere__vignette {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(to bottom, rgba(2, 5, 7, 0.55) 0%, transparent 17%, transparent 76%, rgba(2, 5, 7, 0.62) 100%),
    radial-gradient(ellipse 90% 80% at 50% 45%, transparent 50%, rgba(1, 4, 6, 0.56) 100%);
}

.ui-shell {
  position: absolute;
  inset: 0;
  z-index: 4;
  pointer-events: none;
}

.ui-shell button,
.ui-shell a,
.panel {
  pointer-events: auto;
}

.ui-shell .part-callout {
  pointer-events: none;
}

.ui-shell .part-callout.is-visible {
  pointer-events: auto;
}

/* ---------------- Top bar ---------------- */

.topbar {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 0 var(--pad);
  z-index: 30;
  border-bottom: 1px solid transparent;
  background:
    linear-gradient(to bottom, rgba(3, 8, 11, 0.94) 0%, rgba(3, 8, 11, 0.56) 68%, transparent 100%);
}

.topbar::after {
  content: "";
  position: absolute;
  left: var(--pad);
  right: var(--pad);
  bottom: 0;
  height: 1px;
  background: linear-gradient(90deg, var(--line-strong), var(--line-soft) 32%, transparent 52%, var(--line-soft) 74%, var(--line));
}

.brand {
  display: flex;
  align-items: center;
  gap: 18px;
  min-width: 0;
  color: inherit;
  text-decoration: none;
}

.brand__mark {
  position: relative;
  display: grid;
  place-items: center;
  width: 56px;
  height: 42px;
  color: #f2fafb;
  font-family: "Arial Narrow", "Bahnschrift SemiCondensed", var(--sans);
  font-size: 27px;
  font-weight: 900;
  line-height: 1;
  letter-spacing: -1.5px;
  transform: skewX(-8deg);
}

.brand__mark::before,
.brand__mark::after {
  content: "";
  position: absolute;
  width: 9px;
  height: 9px;
  border-color: var(--cyan);
  opacity: 0.55;
}

.brand__mark::before {
  top: 1px;
  left: 2px;
  border-top: 1px solid;
  border-left: 1px solid;
}

.brand__mark::after {
  right: 1px;
  bottom: 1px;
  border-right: 1px solid;
  border-bottom: 1px solid;
}

.brand__rule {
  width: 1px;
  height: 36px;
  background: linear-gradient(to bottom, transparent, var(--line-strong) 24%, var(--line-strong) 74%, transparent);
}

.brand__copy {
  display: grid;
  gap: 2px;
}

.brand__kicker {
  color: var(--muted);
  font-family: var(--mono);
  font-size: 8.5px;
  letter-spacing: 0.19em;
  white-space: nowrap;
}

.brand__title {
  color: #eef7f8;
  font-family: "Bahnschrift SemiCondensed", "Arial Narrow", var(--sans);
  font-size: 28px;
  font-weight: 300;
  letter-spacing: 0.12em;
  line-height: 1;
}

.brand__title b {
  color: var(--cyan);
  font-weight: 600;
}

.topbar__center {
  position: absolute;
  left: 50%;
  top: 50%;
  display: flex;
  align-items: center;
  gap: 14px;
  transform: translate(-50%, -50%);
}

.center-line {
  width: 42px;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--line-strong));
}

.center-line:last-child {
  transform: rotate(180deg);
}

.topbar__eyebrow {
  color: var(--muted);
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.23em;
  white-space: nowrap;
}

.topbar__actions {
  display: flex;
  align-items: center;
  gap: 20px;
}

.sys-pill {
  display: flex;
  align-items: center;
  gap: 8px;
  height: 28px;
  padding: 0 11px;
  border: 1px solid rgba(125, 240, 176, 0.19);
  border-radius: 2px;
  color: #9cc9b2;
  background: rgba(34, 86, 65, 0.09);
  font-family: var(--mono);
  font-size: 8.5px;
  letter-spacing: 0.12em;
}

.sys-pill i,
.live-dot i {
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 8px rgba(125, 240, 176, 0.85);
  animation: pulse-dot 2.6s var(--ease) infinite;
}

.fps-readout {
  display: flex;
  align-items: baseline;
  gap: 7px;
  font-family: var(--mono);
}

.fps-readout span {
  color: var(--muted-dark);
  font-size: 8px;
  letter-spacing: 0.14em;
}

.fps-readout b {
  min-width: 22px;
  color: var(--text-dim);
  font-size: 11px;
  font-weight: 400;
  text-align: right;
}

.icon-button {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  padding: 0;
  border: 1px solid var(--line);
  border-radius: 50%;
  background: rgba(7, 16, 20, 0.48);
  color: var(--text-dim);
  cursor: pointer;
  transition: color 0.25s ease, border-color 0.25s ease, background 0.25s ease, transform 0.25s var(--ease);
}

.icon-button svg {
  width: 16px;
  height: 16px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.3;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.icon-button svg .fill {
  fill: currentColor;
  stroke: none;
}

.icon-button:hover {
  color: var(--cyan);
  border-color: var(--line-strong);
  background: rgba(30, 76, 84, 0.22);
  transform: rotate(4deg);
}

/* ---------------- Shared panel ---------------- */

.panel {
  position: absolute;
  top: calc(var(--header-h) + 20px);
  z-index: 20;
  border: 1px solid var(--line);
  background:
    linear-gradient(145deg, rgba(13, 27, 32, 0.76), rgba(4, 10, 13, 0.84) 58%, rgba(4, 9, 12, 0.73));
  box-shadow:
    0 24px 60px rgba(0, 0, 0, 0.32),
    inset 0 1px 0 rgba(219, 250, 255, 0.035);
  backdrop-filter: blur(18px) saturate(1.2);
  -webkit-backdrop-filter: blur(18px) saturate(1.2);
}

.panel::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(90deg, var(--cyan), transparent 22%) top left / 38px 1px no-repeat,
    linear-gradient(180deg, var(--cyan), transparent 22%) top left / 1px 38px no-repeat,
    linear-gradient(270deg, rgba(112, 245, 255, 0.35), transparent 22%) bottom right / 28px 1px no-repeat,
    linear-gradient(0deg, rgba(112, 245, 255, 0.35), transparent 22%) bottom right / 1px 28px no-repeat;
  opacity: 0.45;
}

.panel__inner {
  position: relative;
  z-index: 1;
  height: 100%;
  padding: 20px 18px 18px;
}

.panel__rail {
  position: absolute;
  top: 20px;
  left: -22px;
  bottom: 20px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  width: 12px;
  color: var(--muted-dark);
  font-family: var(--mono);
  font-size: 7.5px;
  letter-spacing: 0.22em;
  writing-mode: vertical-rl;
  text-orientation: mixed;
}

.panel__rail i {
  flex: 1;
  width: 1px;
  background: linear-gradient(to bottom, var(--line), transparent);
}

.panel__rail--right {
  left: auto;
  right: -22px;
  transform: rotate(180deg);
}

.panel__collapse {
  display: none;
}

.micro-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 12px;
  color: var(--muted-dark);
  font-family: var(--mono);
  font-size: 8px;
  letter-spacing: 0.14em;
}

.micro-row span:last-child {
  color: var(--muted);
}

.eyebrow {
  display: block;
  color: var(--cyan-soft);
  font-family: var(--mono);
  font-size: 8.5px;
  font-weight: 400;
  letter-spacing: 0.2em;
  text-transform: uppercase;
}

.parts-panel {
  left: var(--pad);
  width: var(--panel-w);
  max-height: calc(100vh - var(--header-h) - 156px);
  transition: opacity 0.55s var(--ease), transform 0.65s var(--ease);
}

.parts-panel .panel__inner {
  overflow-y: auto;
  overscroll-behavior: contain;
  scrollbar-width: thin;
  scrollbar-color: rgba(112, 245, 255, 0.16) transparent;
}

.parts-panel .panel__inner::-webkit-scrollbar {
  width: 3px;
}

.parts-panel .panel__inner::-webkit-scrollbar-thumb {
  background: rgba(112, 245, 255, 0.17);
}

.parts-panel::after {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  right: -1px;
  width: 1px;
  background: linear-gradient(to bottom, transparent, rgba(112, 245, 255, 0.28) 35%, transparent);
}

.info-panel {
  right: var(--pad);
  width: var(--info-w);
  max-height: calc(100vh - var(--header-h) - 156px);
  overflow: hidden;
  transition: opacity 0.55s var(--ease), transform 0.65s var(--ease);
}

.info-panel .panel__inner {
  overflow-y: auto;
  overscroll-behavior: contain;
  scrollbar-width: thin;
  scrollbar-color: rgba(112, 245, 255, 0.16) transparent;
}

.info-panel .panel__inner::-webkit-scrollbar {
  width: 3px;
}

.info-panel .panel__inner::-webkit-scrollbar-thumb {
  background: rgba(112, 245, 255, 0.17);
}

.parts-heading {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  padding: 2px 0 17px;
  border-bottom: 1px solid var(--line);
}

.parts-heading h2 {
  margin: 4px 0 0;
  color: #eef7f8;
  font-size: 23px;
  font-weight: 400;
  letter-spacing: 0.05em;
}

.explode-counter {
  display: flex;
  align-items: baseline;
  gap: 4px;
  color: var(--muted);
  font-family: var(--mono);
}

.explode-counter b {
  color: var(--cyan);
  font-size: 22px;
  font-weight: 400;
  letter-spacing: 0.02em;
}

.explode-counter span {
  font-size: 9px;
  letter-spacing: 0.1em;
}

.part-list {
  display: flex;
  flex-direction: column;
  padding: 10px 0 12px;
}

.part-item {
  position: relative;
  display: grid;
  grid-template-columns: 27px minmax(0, 1fr) 16px;
  align-items: center;
  gap: 10px;
  width: 100%;
  min-height: 53px;
  padding: 8px 8px 8px 6px;
  border: 0;
  border-bottom: 1px solid var(--line-soft);
  border-radius: 1px;
  background: transparent;
  color: var(--text);
  text-align: left;
  cursor: pointer;
  transition: background 0.25s ease, border-color 0.25s ease, padding 0.3s var(--ease);
}

.part-item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  width: 2px;
  height: 0;
  background: var(--cyan);
  box-shadow: 0 0 9px rgba(112, 245, 255, 0.8);
  transform: translateY(-50%);
  transition: height 0.35s var(--ease);
}

.part-item:hover,
.part-item.is-hovered {
  padding-left: 11px;
  background: rgba(116, 231, 245, 0.045);
}

.part-item.is-hovered .part-item__copy b {
  color: #f1fafb;
}

.part-item.is-hovered .part-item__state::before {
  border-color: rgba(112, 245, 255, 0.6);
  box-shadow: 0 0 7px rgba(112, 245, 255, 0.32);
}

.part-item.is-active {
  padding-left: 11px;
  background: linear-gradient(90deg, rgba(100, 231, 245, 0.105), rgba(100, 231, 245, 0.015) 64%, transparent);
  border-bottom-color: rgba(112, 245, 255, 0.16);
  box-shadow: inset 0 0 22px rgba(70, 213, 228, 0.035);
}

.part-item.is-active::before {
  height: 25px;
}

.part-item__index {
  color: var(--muted-dark);
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.08em;
  transition: color 0.25s ease;
}

.part-item.is-active .part-item__index,
.part-item.is-exploded .part-item__index {
  color: var(--cyan);
}

.part-item__copy {
  display: grid;
  gap: 2px;
  min-width: 0;
}

.part-item__copy b {
  overflow: hidden;
  color: #c9d8db;
  font-size: 13px;
  font-weight: 400;
  letter-spacing: 0.06em;
  text-overflow: ellipsis;
  white-space: nowrap;
  transition: color 0.25s ease;
}

.part-item__copy small {
  overflow: hidden;
  color: var(--muted-dark);
  font-family: var(--mono);
  font-size: 8px;
  letter-spacing: 0.14em;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.part-item:hover .part-item__copy b,
.part-item.is-active .part-item__copy b {
  color: #f1fafb;
}

.part-item.is-active .part-item__copy small {
  color: var(--cyan-soft);
}

.part-item__state {
  position: relative;
  display: grid;
  place-items: center;
  width: 16px;
  height: 16px;
}

.part-item__state::before {
  content: "";
  width: 5px;
  height: 5px;
  border: 1px solid rgba(127, 156, 162, 0.42);
  border-radius: 50%;
  transition: background 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}

.part-item.is-exploded .part-item__state::before {
  border-color: var(--cyan);
  background: var(--cyan);
  box-shadow: 0 0 8px rgba(112, 245, 255, 0.8);
}

.part-item__state::after {
  content: "";
  position: absolute;
  inset: 1px;
  border: 1px solid transparent;
  border-radius: 50%;
  transition: border-color 0.3s ease;
}

.part-item.is-exploded .part-item__state::after {
  border-color: rgba(112, 245, 255, 0.18);
}

.parts-footer {
  padding-top: 12px;
  border-top: 1px solid var(--line);
}

.assembly-progress {
  height: 2px;
  overflow: hidden;
  background: rgba(111, 171, 181, 0.08);
}

.assembly-progress span {
  display: block;
  width: 0%;
  height: 100%;
  background: linear-gradient(90deg, var(--cyan-soft), var(--cyan));
  box-shadow: 0 0 12px rgba(112, 245, 255, 0.55);
  transition: width 0.7s var(--ease);
}

.parts-footer__meta {
  display: flex;
  justify-content: space-between;
  padding-top: 8px;
  color: var(--muted-dark);
  font-family: var(--mono);
  font-size: 7px;
  letter-spacing: 0.11em;
}

.parts-footer__meta b {
  color: var(--muted);
  font-weight: 400;
}

.parts-footer p {
  margin: 11px 0 0;
  color: var(--muted);
  font-size: 10px;
  letter-spacing: 0.02em;
}

.prompt-mark {
  margin-right: 3px;
  color: var(--cyan-soft);
}

/* ---------------- Info panel / profile ---------------- */

.profile-view {
  display: flex;
  flex-direction: column;
  min-height: 100%;
}

.profile-hero {
  padding: 12px 0 22px;
  border-bottom: 1px solid var(--line);
}

.profile-hero h2 {
  margin: 14px 0 12px;
  color: #eaf5f6;
  font-size: 29px;
  font-weight: 300;
  line-height: 1.28;
  letter-spacing: 0.015em;
}

.profile-hero h2 em {
  color: var(--cyan);
  font-style: normal;
  font-weight: 300;
}

.profile-hero p {
  margin: 0;
  color: var(--muted);
  font-size: 11px;
  line-height: 1.85;
}

.profile-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  border-bottom: 1px solid var(--line);
}

.profile-stat {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 5px;
  padding: 14px 6px 14px 0;
  border-bottom: 1px solid var(--line-soft);
}

.profile-stat:nth-child(odd) {
  border-right: 1px solid var(--line-soft);
}

.profile-stat:nth-child(even) {
  padding-left: 14px;
}

.profile-stat:nth-child(n + 3) {
  border-bottom: 0;
}

.profile-stat b {
  color: #edf7f8;
  font-family: var(--mono);
  font-size: 25px;
  font-weight: 300;
  line-height: 1;
  letter-spacing: -0.03em;
}

.profile-stat span {
  color: var(--cyan-soft);
  font-family: var(--mono);
  font-size: 8px;
  letter-spacing: 0.1em;
}

.profile-stat small {
  flex-basis: 100%;
  margin-top: 3px;
  color: var(--muted-dark);
  font-size: 9px;
  letter-spacing: 0.04em;
}

.sensor-strip {
  padding: 17px 0 14px;
  border-bottom: 1px solid var(--line);
}

.sensor-strip__label {
  display: flex;
  align-items: center;
  justify-content: space-between;
  color: var(--muted-dark);
  font-family: var(--mono);
  font-size: 7.5px;
  letter-spacing: 0.12em;
}

.sensor-strip__label b {
  color: var(--text-dim);
  font-family: var(--sans);
  font-size: 10px;
  font-weight: 400;
  letter-spacing: 0.08em;
}

.sensor-bars {
  display: grid;
  grid-template-columns: repeat(10, 1fr);
  gap: 3px;
  margin-top: 10px;
}

.sensor-bars i {
  height: 4px;
  background: rgba(101, 185, 195, 0.12);
}

.sensor-bars i:nth-child(1),
.sensor-bars i:nth-child(2),
.sensor-bars i:nth-child(3),
.sensor-bars i:nth-child(4),
.sensor-bars i:nth-child(7),
.sensor-bars i:nth-child(9) {
  background: rgba(105, 231, 242, 0.45);
  box-shadow: 0 0 5px rgba(105, 231, 242, 0.22);
}

.sensor-strip p {
  margin: 10px 0 0;
  color: var(--muted-dark);
  font-size: 9px;
  letter-spacing: 0.03em;
}

.profile-prompt {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  margin-top: auto;
  padding: 15px 0 0;
  border: 0;
  background: transparent;
  text-align: left;
  cursor: pointer;
}

.profile-prompt__icon {
  display: grid;
  place-items: center;
  flex: 0 0 29px;
  width: 29px;
  height: 29px;
  border: 1px solid var(--line-strong);
  border-radius: 50%;
  color: var(--cyan);
}

.profile-prompt__icon svg {
  width: 15px;
  height: 15px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.1;
}

.profile-prompt > span:nth-child(2) {
  display: grid;
  gap: 2px;
}

.profile-prompt b {
  color: var(--text-dim);
  font-size: 10px;
  font-weight: 400;
  letter-spacing: 0.05em;
  transition: color 0.25s ease;
}

.profile-prompt small {
  color: var(--muted-dark);
  font-family: var(--mono);
  font-size: 7px;
  letter-spacing: 0.13em;
}

.profile-prompt__arrow {
  margin-left: auto;
  color: var(--cyan-soft);
  font-size: 15px;
  transition: transform 0.3s var(--ease), color 0.25s ease;
}

.profile-prompt:hover b {
  color: var(--cyan);
}

.profile-prompt:hover .profile-prompt__arrow {
  color: var(--cyan);
  transform: translate(2px, -2px);
}

/* ---------------- Info panel / detail ---------------- */

.detail-view {
  animation: detail-in 0.4s var(--ease) both;
}

@keyframes detail-in {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

.detail-view[hidden],
.profile-view[hidden] {
  display: none;
}

.detail-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line);
}

.detail-head__left {
  display: flex;
  align-items: center;
  gap: 9px;
  color: var(--muted-dark);
  font-family: var(--mono);
  font-size: 8px;
  letter-spacing: 0.13em;
}

.detail-head__left b {
  color: var(--cyan);
  font-weight: 400;
}

.detail-close {
  display: grid;
  place-items: center;
  width: 25px;
  height: 25px;
  padding: 0;
  border: 1px solid var(--line);
  border-radius: 50%;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  transition: color 0.2s ease, border-color 0.2s ease;
}

.detail-close svg {
  width: 12px;
  height: 12px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.4;
}

.detail-close:hover {
  color: var(--cyan);
  border-color: var(--line-strong);
}

.detail-title {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  padding: 18px 0 14px;
}

.detail-title h2 {
  margin: 0;
  color: #eff9fa;
  font-size: 27px;
  font-weight: 400;
  letter-spacing: 0.03em;
  line-height: 1.2;
}

.detail-title p {
  margin: 5px 0 0;
  color: var(--cyan-soft);
  font-family: var(--mono);
  font-size: 8px;
  letter-spacing: 0.16em;
}

.detail-index {
  padding-top: 2px;
  color: rgba(112, 245, 255, 0.11);
  font-family: var(--mono);
  font-size: 43px;
  font-weight: 300;
  line-height: 0.9;
  letter-spacing: -0.06em;
}

.detail-status {
  display: flex;
  align-items: center;
  gap: 7px;
  margin-bottom: 16px;
  padding: 8px 0;
  border-top: 1px solid var(--line-soft);
  border-bottom: 1px solid var(--line-soft);
  color: var(--muted);
  font-family: var(--mono);
  font-size: 8px;
  letter-spacing: 0.1em;
}

.detail-status i {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--muted-dark);
}

.detail-status.is-exploded {
  color: var(--cyan-soft);
}

.detail-status.is-exploded i {
  background: var(--cyan);
  box-shadow: 0 0 8px rgba(112, 245, 255, 0.8);
}

.detail-status span:last-child {
  margin-left: auto;
  color: var(--muted-dark);
}

.detail-scroll {
  min-height: 0;
}

.detail-description {
  margin: 0 0 18px;
  color: var(--muted);
  font-size: 11px;
  line-height: 1.8;
}

.spec-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line-soft);
}

.spec-cell {
  min-height: 66px;
  padding: 11px 10px;
  border-right: 1px solid var(--line-soft);
  border-bottom: 1px solid var(--line-soft);
}

.spec-cell span {
  display: block;
  margin-bottom: 5px;
  color: var(--muted-dark);
  font-size: 9px;
  letter-spacing: 0.05em;
}

.spec-cell b {
  display: block;
  color: #d7e7e9;
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 400;
  line-height: 1.35;
  letter-spacing: -0.01em;
}

.detail-note {
  display: flex;
  gap: 9px;
  margin: 16px 0;
  padding: 11px 12px;
  border-left: 1px solid rgba(112, 245, 255, 0.32);
  background: rgba(97, 213, 225, 0.045);
  color: var(--muted);
  font-size: 9.5px;
  line-height: 1.65;
}

.detail-note svg {
  flex: 0 0 13px;
  width: 13px;
  height: 13px;
  margin-top: 1px;
  fill: none;
  stroke: var(--cyan-soft);
  stroke-width: 1.3;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.detail-actions {
  display: flex;
  gap: 7px;
  padding-top: 2px;
}

.detail-scroll .detail-foot {
  margin-bottom: 12px;
}

.detail-button {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  flex: 1;
  min-height: 39px;
  padding: 8px 10px;
  border: 1px solid var(--line-strong);
  border-radius: 1px;
  background: rgba(61, 164, 176, 0.1);
  color: var(--cyan);
  font-size: 10px;
  letter-spacing: 0.06em;
  cursor: pointer;
  transition: background 0.25s ease, border-color 0.25s ease, color 0.25s ease;
}

.detail-button svg {
  width: 13px;
  height: 13px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.detail-button:hover {
  border-color: var(--cyan);
  background: rgba(72, 205, 219, 0.19);
}

.detail-button--ghost {
  flex: 0 0 auto;
  border-color: var(--line);
  background: transparent;
  color: var(--text-dim);
}

.detail-button--ghost:hover {
  border-color: var(--line-strong);
  background: rgba(97, 213, 225, 0.06);
  color: var(--cyan);
}

.detail-foot {
  display: flex;
  justify-content: space-between;
  margin-top: 14px;
  color: var(--muted-dark);
  font-family: var(--mono);
  font-size: 7px;
  letter-spacing: 0.1em;
}

/* ---------------- Labels ---------------- */

.labels-layer {
  position: absolute;
  inset: 0;
  z-index: 15;
  pointer-events: none;
  overflow: hidden;
}

.label-lines {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  overflow: visible;
  pointer-events: none;
}

.label-lines path {
  fill: none;
  stroke: rgba(116, 231, 243, 0.4);
  stroke-width: 0.8;
  stroke-dasharray: 2 3;
  transition: stroke 0.25s ease, opacity 0.25s ease;
}

.label-lines path.is-selected {
  stroke: rgba(112, 245, 255, 0.85);
  stroke-dasharray: none;
}

.label-lines circle {
  fill: var(--cyan);
  filter: drop-shadow(0 0 4px rgba(112, 245, 255, 0.9));
}

.label-lines circle.is-selected {
  r: 3;
}

.label-lines rect {
  fill: none;
  stroke: rgba(112, 245, 255, 0.7);
  stroke-width: 0.8;
}

.part-callout {
  position: absolute;
  display: flex;
  flex-direction: column;
  justify-content: center;
  width: 206px;
  height: 53px;
  min-height: 53px;
  padding: 8px 11px 8px 12px;
  overflow: hidden;
  border: 1px solid rgba(122, 202, 214, 0.19);
  border-left-color: rgba(112, 245, 255, 0.58);
  background:
    linear-gradient(90deg, rgba(8, 20, 24, 0.91), rgba(5, 13, 17, 0.74));
  box-shadow: 0 8px 28px rgba(0, 0, 0, 0.22);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  color: var(--text);
  text-align: left;
  cursor: pointer;
  opacity: 0;
  transform: translateY(4px);
  transition: opacity 0.3s ease, transform 0.3s var(--ease), border-color 0.25s ease, background 0.25s ease;
  pointer-events: none;
}

.part-callout.is-visible {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

.part-callout:hover,
.part-callout.is-selected {
  border-color: rgba(112, 245, 255, 0.55);
  background:
    linear-gradient(90deg, rgba(13, 38, 42, 0.91), rgba(6, 18, 22, 0.7));
  box-shadow: 0 10px 34px rgba(0, 0, 0, 0.24), 0 0 24px rgba(66, 217, 231, 0.07);
}

.part-callout::before {
  content: "";
  position: absolute;
  left: -1px;
  top: 50%;
  width: 2px;
  height: 14px;
  background: var(--cyan);
  transform: translateY(-50%);
  box-shadow: 0 0 10px rgba(112, 245, 255, 0.75);
}

.part-callout__top {
  display: flex;
  align-items: baseline;
  gap: 8px;
}

.part-callout__index {
  color: var(--cyan);
  font-family: var(--mono);
  font-size: 8.5px;
  letter-spacing: 0.08em;
}

.part-callout__top b {
  color: #e8f4f5;
  font-size: 12.5px;
  font-weight: 400;
  letter-spacing: 0.08em;
  white-space: nowrap;
}

.part-callout__top em {
  flex: 0 0 auto;
  margin-left: auto;
  max-width: 82px;
  overflow: hidden;
  color: var(--muted-dark);
  font-family: var(--mono);
  font-size: 7px;
  font-style: normal;
  letter-spacing: 0.06em;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.part-callout__bottom {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-top: 5px;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 8px;
  letter-spacing: 0.02em;
}

.part-callout__bottom i {
  width: 16px;
  height: 1px;
  background: rgba(112, 245, 255, 0.28);
}

.part-callout.is-selected .part-callout__bottom {
  color: var(--cyan-soft);
}

/* ---------------- Hover tooltip ---------------- */

.hover-tip {
  position: fixed;
  z-index: 40;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 7px 10px;
  border: 1px solid rgba(112, 245, 255, 0.28);
  background: rgba(5, 14, 18, 0.92);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.35), 0 0 20px rgba(54, 198, 215, 0.05);
  color: var(--text-dim);
  font-size: 10px;
  letter-spacing: 0.04em;
  opacity: 0;
  transform: translate(12px, 12px) scale(0.98);
  transform-origin: top left;
  transition: opacity 0.16s ease, transform 0.16s ease;
  pointer-events: none;
  white-space: nowrap;
}

.hover-tip.is-visible {
  opacity: 1;
  transform: translate(12px, 12px) scale(1);
}

.hover-tip__index {
  color: var(--cyan);
  font-family: var(--mono);
  font-size: 8px;
}

.hover-tip__copy {
  display: grid;
  gap: 1px;
}

.hover-tip__copy b {
  color: var(--text);
  font-size: 10.5px;
  font-weight: 400;
}

.hover-tip__copy small {
  color: var(--muted-dark);
  font-family: var(--mono);
  font-size: 6.5px;
  letter-spacing: 0.09em;
}

.hover-tip__hint {
  margin-left: 7px;
  padding-left: 8px;
  border-left: 1px solid var(--line);
  color: var(--cyan-soft);
  font-family: var(--mono);
  font-size: 7px;
  letter-spacing: 0.05em;
}

/* ---------------- HUD decoration ---------------- */

.frame-marks {
  position: absolute;
  inset: calc(var(--header-h) + 13px) calc(var(--pad) - 8px) 118px;
  z-index: 5;
  pointer-events: none;
}

.frame-mark {
  position: absolute;
  width: 14px;
  height: 14px;
  border-color: rgba(112, 245, 255, 0.25);
  border-style: solid;
}

.frame-mark--tl { top: 0; left: 0; border-width: 1px 0 0 1px; }
.frame-mark--tr { top: 0; right: 0; border-width: 1px 1px 0 0; }
.frame-mark--bl { bottom: 0; left: 0; border-width: 0 0 1px 1px; }
.frame-mark--br { bottom: 0; right: 0; border-width: 0 1px 1px 0; }

.view-note {
  display: none;
}

.view-note i {
  width: 25px;
  height: 1px;
  background: var(--line);
}

.guide-card {
  position: absolute;
  left: var(--pad);
  bottom: 25px;
  z-index: 18;
  width: 296px;
  padding: 12px 13px 10px;
  border: 1px solid var(--line);
  background: rgba(5, 13, 16, 0.56);
  backdrop-filter: blur(13px);
  -webkit-backdrop-filter: blur(13px);
}

.guide-card__head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-bottom: 9px;
  border-bottom: 1px solid var(--line-soft);
  color: var(--muted-dark);
  font-family: var(--mono);
  font-size: 7px;
  letter-spacing: 0.12em;
}

.live-dot {
  display: flex;
  align-items: center;
  gap: 5px;
  color: rgba(125, 240, 176, 0.62);
  font-size: 6.5px;
}

.live-dot i {
  width: 3px;
  height: 3px;
}

.guide-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 4px;
  padding: 10px 0 8px;
}

.guide-item {
  display: flex;
  align-items: center;
  gap: 7px;
}

.guide-item svg {
  width: 22px;
  height: 22px;
  flex: 0 0 22px;
  fill: none;
  stroke: var(--cyan-soft);
  stroke-width: 1.15;
  stroke-linecap: round;
  stroke-linejoin: round;
  opacity: 0.75;
}

.guide-item span {
  display: grid;
  gap: 1px;
}

.guide-item b {
  color: var(--text-dim);
  font-size: 9px;
  font-weight: 400;
}

.guide-item small {
  color: var(--muted-dark);
  font-size: 8px;
}

.guide-keys {
  display: flex;
  align-items: center;
  gap: 5px;
  color: var(--muted-dark);
  font-family: var(--mono);
  font-size: 6.5px;
  letter-spacing: 0.03em;
}

.guide-keys kbd {
  display: inline-grid;
  place-items: center;
  min-width: 14px;
  height: 14px;
  border: 1px solid var(--line);
  color: var(--muted);
  font-family: var(--mono);
  font-size: 6.5px;
}

.guide-keys span {
  width: 1px;
  height: 9px;
  margin: 0 2px;
  background: var(--line);
}

.bottom-bar {
  position: absolute;
  right: var(--pad);
  bottom: 25px;
  left: var(--pad);
  z-index: 18;
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 20px;
  pointer-events: none;
}

.scene-readout {
  width: 156px;
  flex: 0 0 auto;
  visibility: hidden;
  color: var(--muted-dark);
  font-family: var(--mono);
  font-size: 7px;
  letter-spacing: 0.12em;
}

.scene-readout__label {
  display: block;
  padding-bottom: 7px;
  border-bottom: 1px solid var(--line);
}

.scene-readout__rows {
  display: flex;
  justify-content: space-between;
  gap: 6px;
  padding-top: 6px;
}

.scene-readout__rows b {
  color: var(--muted);
  font-weight: 400;
}

.control-dock {
  display: flex;
  align-items: stretch;
  gap: 2px;
  padding: 4px;
  border: 1px solid var(--line);
  background: rgba(5, 13, 16, 0.75);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.26);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  pointer-events: auto;
}

.dock-button {
  display: flex;
  align-items: center;
  gap: 8px;
  min-width: 102px;
  height: 44px;
  padding: 5px 11px;
  border: 1px solid transparent;
  background: transparent;
  color: var(--muted);
  text-align: left;
  cursor: pointer;
  transition: background 0.25s ease, border-color 0.25s ease, color 0.25s ease;
}

.dock-button:hover {
  border-color: var(--line);
  background: rgba(105, 223, 236, 0.055);
  color: var(--text-dim);
}

.dock-button[aria-pressed="true"] {
  border-color: rgba(112, 245, 255, 0.2);
  background: rgba(87, 218, 231, 0.08);
  color: var(--cyan);
}

.dock-button--primary {
  color: var(--cyan);
  background: rgba(74, 198, 212, 0.11);
  border-color: rgba(112, 245, 255, 0.2);
}

.dock-button--primary:hover {
  background: rgba(74, 198, 212, 0.18);
  border-color: rgba(112, 245, 255, 0.4);
}

.dock-icon {
  display: grid;
  place-items: center;
  flex: 0 0 25px;
  width: 25px;
  height: 25px;
}

.dock-icon svg {
  width: 19px;
  height: 19px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.dock-copy {
  display: grid;
  gap: 1px;
}

.dock-copy b {
  color: currentColor;
  font-size: 9.5px;
  font-weight: 400;
  letter-spacing: 0.04em;
  white-space: nowrap;
}

.dock-copy small {
  color: var(--muted-dark);
  font-family: var(--mono);
  font-size: 6px;
  letter-spacing: 0.08em;
  white-space: nowrap;
}

.dock-button[aria-pressed="true"] .dock-copy small {
  color: var(--cyan-soft);
}

.dock-divider {
  width: 1px;
  margin: 7px 3px;
  background: var(--line);
}

.sequence-readout {
  flex: 0 0 156px;
  width: 156px;
  text-align: right;
  color: var(--muted-dark);
  font-family: var(--mono);
  font-size: 7px;
  letter-spacing: 0.1em;
}

.sequence-readout__top {
  display: flex;
  justify-content: space-between;
  padding-bottom: 7px;
  border-bottom: 1px solid var(--line);
}

.sequence-readout__top b {
  color: var(--muted);
  font-weight: 400;
}

.sequence-bars {
  display: flex;
  gap: 4px;
  justify-content: flex-end;
  padding-top: 7px;
}

.sequence-bars i {
  width: 13px;
  height: 3px;
  background: rgba(133, 174, 181, 0.14);
  transition: background 0.35s ease, box-shadow 0.35s ease;
}

.sequence-bars i.is-active {
  background: var(--cyan);
  box-shadow: 0 0 6px rgba(112, 245, 255, 0.55);
}

.mobile-parts-button {
  display: none;
}

/* ---------------- Toast ---------------- */

.toast {
  position: absolute;
  left: 50%;
  bottom: 114px;
  z-index: 25;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 13px;
  border: 1px solid var(--line);
  background: rgba(4, 12, 15, 0.82);
  color: var(--muted);
  font-size: 9.5px;
  letter-spacing: 0.06em;
  opacity: 0;
  transform: translate(-50%, 8px);
  transition: opacity 0.4s ease, transform 0.4s var(--ease);
  pointer-events: none;
  white-space: nowrap;
}

.toast.is-visible {
  opacity: 1;
  transform: translate(-50%, 0);
}

.toast__dot {
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 8px rgba(112, 245, 255, 0.8);
}

/* ---------------- Guide modal ---------------- */

.guide-modal {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: grid;
  place-items: center;
  padding: 20px;
}

.guide-modal[hidden] {
  display: none;
}

.guide-modal__scrim {
  position: absolute;
  inset: 0;
  background: rgba(1, 4, 6, 0.72);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
}

.guide-modal__card {
  position: relative;
  width: min(660px, 100%);
  max-height: calc(100vh - 40px);
  overflow-y: auto;
  padding: 27px 30px 22px;
  border: 1px solid var(--line-strong);
  background:
    linear-gradient(135deg, rgba(17, 36, 41, 0.97), rgba(5, 12, 15, 0.98) 62%);
  box-shadow: 0 35px 100px rgba(0, 0, 0, 0.6);
  animation: modal-in 0.42s var(--ease) both;
}

@keyframes modal-in {
  from { opacity: 0; transform: translateY(14px) scale(0.985); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}

.guide-modal__card::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(90deg, var(--cyan), transparent 24%) top left / 56px 1px no-repeat,
    linear-gradient(180deg, var(--cyan), transparent 24%) top left / 1px 56px no-repeat,
    linear-gradient(270deg, rgba(112, 245, 255, 0.35), transparent 24%) bottom right / 42px 1px no-repeat,
    linear-gradient(0deg, rgba(112, 245, 255, 0.35), transparent 24%) bottom right / 1px 42px no-repeat;
  opacity: 0.75;
}

.guide-modal__top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
  color: var(--muted-dark);
  font-family: var(--mono);
  font-size: 8px;
  letter-spacing: 0.14em;
}

.guide-modal h2 {
  margin: 6px 0 14px;
  color: #eff9fa;
  font-size: 34px;
  font-weight: 300;
  letter-spacing: 0.07em;
}

.guide-modal__intro {
  max-width: 540px;
  margin: 0 0 22px;
  color: var(--muted);
  font-size: 11.5px;
  line-height: 1.8;
}

.manual-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  background: var(--line-soft);
  border: 1px solid var(--line-soft);
}

.manual-item {
  display: flex;
  gap: 11px;
  padding: 15px;
  background: rgba(5, 13, 16, 0.7);
}

.manual-item > span {
  flex: 0 0 20px;
  color: var(--cyan-soft);
  font-family: var(--mono);
  font-size: 8px;
}

.manual-item b {
  display: block;
  margin-bottom: 5px;
  color: var(--text-dim);
  font-size: 11px;
  font-weight: 400;
  letter-spacing: 0.04em;
}

.manual-item p {
  margin: 0;
  color: var(--muted-dark);
  font-size: 9.5px;
  line-height: 1.72;
}

.manual-item kbd {
  display: inline-grid;
  place-items: center;
  min-width: 16px;
  height: 16px;
  margin: 0 2px;
  border: 1px solid var(--line);
  color: var(--muted);
  font-family: var(--mono);
  font-size: 7px;
}

.manual-foot {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  padding-top: 18px;
  color: var(--muted-dark);
  font-family: var(--mono);
  font-size: 7px;
  letter-spacing: 0.1em;
}

.noscript {
  position: fixed;
  inset: 0;
  z-index: 200;
  display: grid;
  place-items: center;
  background: #04080b;
  color: var(--text);
}

/* ---------------- Boot ---------------- */

.boot {
  position: fixed;
  inset: 0;
  z-index: 300;
  display: grid;
  place-items: center;
  background:
    radial-gradient(ellipse at 50% 40%, rgba(17, 55, 62, 0.22), transparent 55%),
    #03070a;
  transition: opacity 0.65s ease, visibility 0.65s ease;
}

.boot.is-hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.boot__grid {
  position: absolute;
  inset: 0;
  opacity: 0.45;
  background-image:
    linear-gradient(to right, rgba(112, 201, 215, 0.035) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(112, 201, 215, 0.035) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(circle at 50% 45%, black, transparent 65%);
  -webkit-mask-image: radial-gradient(circle at 50% 45%, black, transparent 65%);
}

.boot__inner {
  position: relative;
  width: min(320px, calc(100vw - 60px));
}

.boot__brand {
  display: flex;
  align-items: center;
  gap: 14px;
  color: var(--text);
  font-family: "Bahnschrift SemiCondensed", "Arial Narrow", var(--sans);
  font-size: 19px;
  letter-spacing: 0.14em;
}

.boot__brand .dji-mark {
  color: #f1fafb;
  font-family: "Arial Narrow", var(--sans);
  font-size: 31px;
  font-weight: 900;
  letter-spacing: -1.5px;
  transform: skewX(-8deg);
}

.boot__brand i {
  width: 1px;
  height: 19px;
  background: var(--line-strong);
}

.boot__overline {
  margin: 12px 0 31px;
  color: var(--muted-dark);
  font-family: var(--mono);
  font-size: 7.5px;
  letter-spacing: 0.2em;
}

.boot__bar {
  height: 1px;
  background: rgba(116, 183, 192, 0.16);
}

.boot__bar span {
  display: block;
  width: 0%;
  height: 100%;
  background: var(--cyan);
  box-shadow: 0 0 12px rgba(112, 245, 255, 0.9);
  transition: width 0.25s ease;
}

.boot__meta {
  display: flex;
  justify-content: space-between;
  margin-top: 9px;
  color: var(--muted-dark);
  font-family: var(--mono);
  font-size: 7px;
  letter-spacing: 0.12em;
}

.boot__meta span:last-child {
  color: var(--cyan-soft);
}

.boot__corner {
  position: absolute;
  width: 23px;
  height: 23px;
  border-color: rgba(112, 245, 255, 0.32);
  border-style: solid;
}

.boot__corner--tl { top: 25px; left: 25px; border-width: 1px 0 0 1px; }
.boot__corner--tr { top: 25px; right: 25px; border-width: 1px 1px 0 0; }
.boot__corner--bl { bottom: 25px; left: 25px; border-width: 0 0 1px 1px; }
.boot__corner--br { bottom: 25px; right: 25px; border-width: 0 1px 1px 0; }

/* ---------------- Entry state ---------------- */

.topbar,
.parts-panel,
.info-panel,
.guide-card,
.bottom-bar,
.frame-marks,
.view-note {
  opacity: 0;
  transform: translateY(-5px);
  transition: opacity 0.8s var(--ease), transform 0.9s var(--ease);
}

.parts-panel,
.guide-card {
  transform: translateY(9px);
}

.info-panel {
  transform: translateY(9px);
}

.bottom-bar {
  transform: translateY(10px);
}

.is-ready .topbar,
.is-ready .parts-panel,
.is-ready .info-panel,
.is-ready .guide-card,
.is-ready .bottom-bar,
.is-ready .frame-marks,
.is-ready .view-note {
  opacity: 1;
  transform: translateY(0);
}

.is-ready .topbar { transition-delay: 0.05s; }
.is-ready .parts-panel { transition-delay: 0.14s; }
.is-ready .info-panel { transition-delay: 0.2s; }
.is-ready .frame-marks,
.is-ready .view-note { transition-delay: 0.28s; }
.is-ready .guide-card { transition-delay: 0.3s; }
.is-ready .bottom-bar { transition-delay: 0.35s; }

@keyframes pulse-dot {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.35; }
}

/* ---------------- Responsive ---------------- */

@media (max-width: 1280px) {
  :root {
    --panel-w: 268px;
    --info-w: 298px;
    --pad: 22px;
  }

  .topbar__center {
    display: none;
  }

  .guide-card {
    width: 258px;
  }

  .dock-button {
    min-width: 91px;
    padding-left: 8px;
    padding-right: 8px;
  }

  .dock-copy b {
    font-size: 9px;
  }

  .scene-readout,
  .sequence-readout {
    width: 132px;
    flex-basis: 132px;
  }

  .sequence-bars i {
    width: 10px;
  }

  .part-callout {
    width: 188px;
  }
}

@media (max-width: 1080px) {
  :root {
    --panel-w: 246px;
    --info-w: 276px;
  }

  .topbar__actions {
    gap: 11px;
  }

  .sys-pill {
    display: none;
  }

  .parts-heading h2 {
    font-size: 21px;
  }

  .part-item {
    min-height: 49px;
  }

  .profile-hero h2 {
    font-size: 25px;
  }

  .scene-readout {
    visibility: hidden;
  }

  .sequence-readout {
    width: 120px;
    flex-basis: 120px;
  }

  .dock-button {
    min-width: 82px;
    gap: 5px;
  }

  .dock-copy small {
    display: none;
  }

  .dock-icon {
    flex-basis: 22px;
    width: 22px;
  }

  .guide-card {
    width: 226px;
  }

  .guide-item {
    gap: 5px;
  }

  .guide-item svg {
    width: 19px;
    height: 19px;
    flex-basis: 19px;
  }

  .guide-grid {
    padding-bottom: 5px;
  }

  .guide-keys {
    display: none;
  }
}

@media (max-width: 860px) {
  :root {
    --header-h: 68px;
    --pad: 14px;
  }

  .brand {
    gap: 10px;
  }

  .brand__mark {
    width: 44px;
    height: 33px;
    font-size: 23px;
  }

  .brand__rule {
    height: 28px;
  }

  .brand__kicker {
    display: none;
  }

  .brand__title {
    font-size: 23px;
  }

  .topbar {
    padding: 0 var(--pad);
  }

  .topbar::after {
    left: var(--pad);
    right: var(--pad);
  }

  .topbar__actions {
    gap: 10px;
  }

  .fps-readout {
    display: none;
  }

  .frame-marks {
    inset: 80px 12px 100px;
  }

  .parts-panel {
    top: auto;
    left: 10px;
    right: 10px;
    bottom: 78px;
    width: auto;
    max-height: min(52vh, 410px);
    transform: translateY(calc(100% + 92px));
    opacity: 1;
    transition: transform 0.5s var(--ease);
    z-index: 34;
  }

  .is-ready .parts-panel {
    transform: translateY(calc(100% + 92px));
    opacity: 1;
  }

  body.parts-open .parts-panel,
  body.parts-open.is-ready .parts-panel {
    transform: translateY(0);
  }

  .parts-panel .panel__inner {
    overflow-y: auto;
    padding: 16px 16px 14px;
  }

  .parts-panel .panel__rail {
    display: none;
  }

  .panel__collapse {
    position: absolute;
    top: 9px;
    right: 11px;
    z-index: 4;
    display: grid;
    place-items: center;
    width: 28px;
    height: 28px;
    padding: 0;
    border: 1px solid rgba(112, 245, 255, 0.24);
    border-radius: 50%;
    background: rgba(12, 36, 41, 0.86);
    color: var(--cyan-soft);
    cursor: pointer;
  }

  .parts-panel .micro-row {
    padding-right: 28px;
  }

  .panel__collapse svg {
    width: 13px;
    height: 13px;
    fill: none;
    stroke: currentColor;
    stroke-width: 1.4;
    stroke-linecap: round;
    stroke-linejoin: round;
    transform: rotate(180deg);
  }

  .parts-heading {
    padding-bottom: 12px;
  }

  .parts-heading h2 {
    font-size: 20px;
  }

  .part-list {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0 12px;
    padding-bottom: 8px;
  }

  .part-item {
    min-height: 44px;
    gap: 7px;
    grid-template-columns: 20px minmax(0, 1fr) 13px;
    padding: 6px 4px;
  }

  .part-item:hover,
  .part-item.is-active {
    padding-left: 7px;
  }

  .part-item__copy b {
    font-size: 11.5px;
  }

  .part-item__copy small {
    font-size: 6.5px;
  }

  .parts-footer {
    display: none;
  }

  .info-panel {
    top: auto;
    right: 10px;
    left: 10px;
    bottom: 78px;
    width: auto;
    height: min(57vh, 470px);
    max-height: min(57vh, 470px);
    display: none;
    z-index: 32;
  }

  .info-panel.has-selection {
    display: block;
    animation: sheet-in 0.38s var(--ease) both;
  }

  .is-ready .info-panel.has-selection {
    opacity: 1;
    transform: translateY(0);
  }

  .info-panel.has-selection .panel__inner {
    display: flex;
    flex-direction: column;
    height: 100%;
    overflow: hidden;
  }

  .info-panel.has-selection .detail-view {
    display: flex;
    flex: 1;
    flex-direction: column;
    min-height: 0;
  }

  .info-panel.has-selection .detail-head,
  .info-panel.has-selection .detail-title,
  .info-panel.has-selection .detail-status,
  .info-panel.has-selection .detail-actions {
    flex: 0 0 auto;
  }

  .info-panel.has-selection .detail-scroll {
    flex: 1;
    min-height: 0;
    overflow-y: auto;
    overscroll-behavior: contain;
    padding-right: 3px;
    scrollbar-width: thin;
    scrollbar-color: rgba(112, 245, 255, 0.22) transparent;
  }

  .info-panel.has-selection .detail-scroll::-webkit-scrollbar {
    width: 3px;
  }

  .info-panel.has-selection .detail-scroll::-webkit-scrollbar-thumb {
    background: rgba(112, 245, 255, 0.2);
  }

  .info-panel.has-selection .detail-actions {
    position: relative;
    padding-top: 12px;
    background: linear-gradient(to top, rgba(5, 13, 16, 0.98) 60%, rgba(5, 13, 16, 0));
  }

  @keyframes sheet-in {
    from { opacity: 0; transform: translateY(12px); }
    to { opacity: 1; transform: translateY(0); }
  }

  .info-panel .panel__inner {
    padding: 16px 16px 18px;
  }

  .info-panel .panel__rail {
    display: none;
  }

  .profile-view {
    min-height: 0;
  }

  .profile-hero {
    padding: 10px 0 14px;
  }

  .profile-hero h2 {
    font-size: 23px;
    margin: 10px 0 8px;
  }

  .profile-hero p {
    font-size: 10px;
    line-height: 1.6;
  }

  .profile-stats {
    grid-template-columns: repeat(4, 1fr);
  }

  .profile-stat {
    padding: 10px 5px !important;
    border-right: 1px solid var(--line-soft) !important;
    border-bottom: 0 !important;
  }

  .profile-stat:last-child {
    border-right: 0 !important;
  }

  .profile-stat b {
    font-size: 19px;
  }

  .profile-stat small {
    font-size: 8px;
  }

  .sensor-strip {
    padding: 12px 0 8px;
  }

  .sensor-strip p {
    margin-top: 6px;
  }

  .profile-prompt {
    padding-top: 11px;
  }

  .bottom-bar {
    right: 10px;
    bottom: 10px;
    left: 10px;
    justify-content: center;
    z-index: 36;
  }

  .mobile-parts-button {
    position: absolute;
    right: 0;
    bottom: 64px;
    display: flex;
    align-items: center;
    gap: 7px;
    height: 32px;
    padding: 0 12px;
    border: 1px solid var(--line);
    border-radius: 1px;
    background: rgba(5, 14, 17, 0.88);
    color: var(--text-dim);
    font-family: var(--sans);
    font-size: 10px;
    letter-spacing: 0.06em;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    cursor: pointer;
  }

  .mobile-parts-button svg {
    width: 14px;
    height: 14px;
    fill: none;
    stroke: var(--cyan-soft);
    stroke-width: 1.35;
    stroke-linecap: round;
  }

  body.parts-open .mobile-parts-button,
  body.detail-open .mobile-parts-button {
    display: none;
  }

  .control-dock {
    width: 100%;
    justify-content: space-between;
    padding: 3px;
  }

  .dock-button {
    flex: 1;
    min-width: 0;
    height: 50px;
    justify-content: center;
    gap: 4px;
    padding: 4px 3px;
  }

  .dock-copy b {
    font-size: 8.5px;
    letter-spacing: 0;
  }

  .dock-icon {
    width: 20px;
    flex-basis: 20px;
  }

  .dock-icon svg {
    width: 17px;
    height: 17px;
  }

  .dock-divider {
    margin: 7px 0;
  }

  .sequence-readout,
  .scene-readout,
  .view-note,
  .guide-card {
    display: none;
  }

  .toast {
    bottom: 135px;
    max-width: calc(100vw - 36px);
    white-space: normal;
    text-align: center;
  }

  .hover-tip {
    display: none;
  }

  .label-lines {
    opacity: 0.6;
  }

  .part-callout {
    width: 170px;
    height: 45px;
    min-height: 45px;
    padding: 6px 9px;
  }

  .part-callout:not(.is-selected) {
    display: none;
  }

  .part-callout__top b {
    font-size: 10.5px;
  }

  .part-callout__bottom {
    font-size: 7px;
  }

  .manual-grid {
    grid-template-columns: 1fr;
  }

  .guide-modal__card {
    padding: 22px 20px 18px;
  }

  .guide-modal h2 {
    font-size: 28px;
  }

  .manual-foot {
    flex-wrap: wrap;
    gap: 5px 14px;
  }

  .detail-title h2 {
    font-size: 24px;
  }

  .spec-cell {
    min-height: 58px;
    padding: 9px 8px;
  }

  .detail-description {
    margin-bottom: 13px;
  }

  .detail-note {
    margin: 12px 0;
  }
}

@media (max-width: 540px) {
  .brand__title {
    font-size: 20px;
  }

  .brand__mark {
    font-size: 20px;
  }

  .icon-button {
    width: 30px;
    height: 30px;
  }

  .parts-panel {
    max-height: 51vh;
  }

  .part-list {
    grid-template-columns: 1fr;
    gap: 0;
  }

  .part-item {
    min-height: 39px;
  }

  .part-item__copy {
    grid-template-columns: 1fr auto;
    align-items: baseline;
    gap: 8px;
  }

  .part-item__copy small {
    display: none;
  }

  .parts-heading {
    padding-top: 0;
  }

  .info-panel {
    max-height: 61vh;
  }

  .detail-index {
    font-size: 35px;
  }

  .detail-actions {
    flex-wrap: wrap;
  }

  .detail-button {
    min-height: 36px;
  }

  .detail-button--ghost {
    flex: 0 0 39px;
    padding: 0;
  }

  .detail-button--ghost span {
    display: none;
  }

  .part-callout {
    width: 158px;
    height: 45px;
  }

  .part-callout__top em {
    display: none;
  }

  .part-callout__top b {
    font-size: 11px;
  }

  .dock-button {
    flex-direction: column;
    gap: 2px;
    height: 52px;
  }

  .dock-copy b {
    font-size: 8px;
  }

  .dock-icon {
    flex-basis: auto;
    width: 18px;
    height: 18px;
  }

  .toast {
    bottom: 142px;
    font-size: 9px;
  }

  .guide-modal {
    padding: 10px;
  }

  .guide-modal__card {
    max-height: calc(100vh - 20px);
  }

  .manual-item {
    padding: 12px;
  }
}

@media (max-height: 720px) and (min-width: 861px) {
  .parts-panel {
    max-height: calc(100vh - var(--header-h) - 140px);
  }

  .part-item {
    min-height: 45px;
    padding-top: 5px;
    padding-bottom: 5px;
  }

  .parts-heading {
    padding-bottom: 10px;
  }

  .profile-hero {
    padding-bottom: 14px;
  }

  .profile-hero h2 {
    margin: 10px 0 8px;
    font-size: 25px;
  }

  .profile-stat {
    padding-top: 10px;
    padding-bottom: 10px;
  }

  .sensor-strip {
    padding: 12px 0 10px;
  }

  .guide-card {
    padding-top: 9px;
    padding-bottom: 8px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
}