/* ==========================================================================
   Kardashev Scale Window
   An instrument viewport: one canvas illustration driven by a single level
   from 0 to 3, a DOM HUD over it, a power readout and a precise range track.
   Loads after style.css and reuses its tokens; the only colour added is inside
   the canvas illustration.
   ========================================================================== */

.kwin {
  position: relative;
  max-width: 100%;
  container-type: inline-size;
  color: var(--fg);
}

.kwin-frame {
  position: relative;
  border: 1px solid var(--line-strong);
  background: var(--bg-sunken);
}
.kwin-frame::before,
.kwin-frame::after {
  /* corner marks, as on the contract address block */
  content: "";
  position: absolute;
  z-index: 3;
  width: 12px;
  height: 12px;
  border-color: var(--accent);
  border-style: solid;
  pointer-events: none;
}
.kwin-frame::before {
  top: -1px;
  left: -1px;
  border-width: 1px 0 0 1px;
}
.kwin-frame::after {
  bottom: -1px;
  right: -1px;
  border-width: 0 1px 1px 0;
}

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

.kwin-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 8px 18px;
  padding: 12px clamp(14px, 2.4vw, 22px);
  border-bottom: 1px solid var(--line);
  font: 500 11.5px/1.4 var(--font-mono);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--fg-muted);
}
.kwin-bar-id {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--fg);
}
.kwin-led {
  flex: none;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
  animation: kwin-led 2.8s ease-in-out infinite;
}
@keyframes kwin-led {
  50% {
    box-shadow: 0 0 0 5px rgba(127, 209, 227, 0.04);
  }
}
.kwin-bar-meta {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  margin-left: auto;
}
.kwin-bar-level {
  color: var(--fg-muted);
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}
.kwin-bar-level span {
  color: var(--accent);
}
.kwin-tag {
  padding: 3px 7px 2px;
  border: 1px solid var(--line-strong);
  color: var(--fg-muted);
  font-size: 10.5px;
  letter-spacing: 0.14em;
  white-space: nowrap;
}

/* ---------- Viewport ---------- */

.kwin-stage {
  position: relative;
  display: grid;
  border-bottom: 1px solid var(--line);
}
.kwin-view {
  position: relative;
  width: 100%;
  max-width: 100%;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: #040406;
}
.kwin-canvas {
  position: absolute;
  inset: 0;
  display: block;
  width: 100%;
  height: 100%;
  cursor: grab;
  touch-action: pan-y;
  -webkit-user-select: none;
  user-select: none;
  -webkit-tap-highlight-color: transparent;
}
.kwin-view.is-dragging .kwin-canvas {
  cursor: grabbing;
}
.kwin-view::after {
  /* scrim under the HUD: darkens only the lower-left corner of the scene */
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(ellipse 58% 82% at 0% 100%, rgba(4, 4, 6, 0.9) 0%, rgba(4, 4, 6, 0.74) 36%, rgba(4, 4, 6, 0) 74%),
    linear-gradient(0deg, rgba(4, 4, 6, 0.5) 0%, rgba(4, 4, 6, 0) 34%);
}

/* viewfinder: corner brackets and edge ticks */
.kwin-reticle {
  --c: rgba(236, 233, 226, 0.26);
  --l: 14px;
  position: absolute;
  inset: 14px;
  z-index: 1;
  pointer-events: none;
  background:
    linear-gradient(var(--c), var(--c)) left top / var(--l) 1px no-repeat,
    linear-gradient(var(--c), var(--c)) left top / 1px var(--l) no-repeat,
    linear-gradient(var(--c), var(--c)) right top / var(--l) 1px no-repeat,
    linear-gradient(var(--c), var(--c)) right top / 1px var(--l) no-repeat,
    linear-gradient(var(--c), var(--c)) left bottom / var(--l) 1px no-repeat,
    linear-gradient(var(--c), var(--c)) left bottom / 1px var(--l) no-repeat,
    linear-gradient(var(--c), var(--c)) right bottom / var(--l) 1px no-repeat,
    linear-gradient(var(--c), var(--c)) right bottom / 1px var(--l) no-repeat;
}
.kwin-reticle::before,
.kwin-reticle::after {
  /* a short ruler on the top and right edges */
  content: "";
  position: absolute;
  background-repeat: no-repeat;
}
.kwin-reticle::before {
  top: 0;
  left: 50%;
  width: 160px;
  height: 7px;
  transform: translateX(-50%);
  background-image:
    linear-gradient(var(--c), var(--c)),
    repeating-linear-gradient(90deg, var(--c) 0 1px, transparent 1px 16px);
  background-size: 1px 7px, 100% 4px;
  background-position: center top, left top;
}
.kwin-reticle::after {
  right: 0;
  top: 50%;
  width: 7px;
  height: 96px;
  transform: translateY(-50%);
  background-image:
    linear-gradient(var(--c), var(--c)),
    repeating-linear-gradient(0deg, var(--c) 0 1px, transparent 1px 16px);
  background-size: 7px 1px, 4px 100%;
  background-position: right center, right top;
}

.kwin-field,
.kwin-hint {
  position: absolute;
  z-index: 1;
  font: 500 10.5px/1 var(--font-mono);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--fg-muted);
  pointer-events: none;
  white-space: nowrap;
}
.kwin-field {
  top: 26px;
  left: 30px;
  display: inline-flex;
  gap: 8px;
}
.kwin-field span {
  color: var(--fg);
}
.kwin-hint {
  right: 30px;
  bottom: 26px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 8px;
  background: rgba(4, 4, 6, 0.55);
  transition: opacity 600ms ease;
}
.kwin-hint::before,
.kwin-hint::after {
  content: "";
  width: 5px;
  height: 5px;
  border: solid currentColor;
  border-width: 0 0 1px 1px;
  transform: rotate(45deg);
}
.kwin-hint::after {
  transform: rotate(-135deg);
}
.kwin--used .kwin-hint {
  opacity: 0;
}

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

.kwin-hud {
  position: absolute;
  left: 0;
  bottom: 0;
  z-index: 2;
  display: grid;
  width: min(44%, 470px);
  padding: clamp(22px, 3.2vw, 36px);
  pointer-events: none;
}
.kwin-hud-live,
.kwin-hud-sizer {
  grid-area: 1 / 1;
  min-width: 0;
}
.kwin-hud-live {
  align-self: end;
}
.kwin-hud-sizer {
  display: none;
  visibility: hidden;
}
.kwin-kicker {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 12px;
  font: 500 11px/1.4 var(--font-mono);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
}
.kwin-kicker::before {
  content: "";
  flex: none;
  width: 18px;
  height: 1px;
  background: currentColor;
}
.kwin-title {
  margin: 0 0 10px;
  font: 500 clamp(1.4rem, 2.5vw, 2.15rem)/1.06 var(--font-sans);
  letter-spacing: -0.025em;
  color: var(--fg);
  text-wrap: balance;
}
.kwin-text {
  margin: 0;
  max-width: 40ch;
  font-size: 15px;
  line-height: 1.55;
  color: var(--fg-muted);
  text-shadow: 0 1px 12px rgba(0, 0, 0, 0.9);
}
.kwin-hud.is-new .kwin-hud-live > * {
  animation: kwin-hud-in 520ms var(--ease-out) both;
}
.kwin-hud.is-new .kwin-hud-live > :nth-child(2) {
  animation-delay: 40ms;
}
.kwin-hud.is-new .kwin-hud-live > :nth-child(3) {
  animation-delay: 80ms;
}
@keyframes kwin-hud-in {
  from {
    opacity: 0;
    transform: translateY(6px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

/* ---------- Power readout ---------- */

.kwin-readout {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr);
  align-items: end;
  gap: 14px 32px;
  padding: clamp(18px, 2.6vw, 26px) clamp(16px, 3vw, 32px);
  border-bottom: 1px solid var(--line);
}
.kwin-label {
  margin: 0;
  font: 500 11px/1.4 var(--font-mono);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--fg-muted);
}
.kwin-power-value {
  margin: 8px 0 0;
  font: 400 clamp(1.25rem, 2.9vw, 2.1rem)/1.15 var(--font-sans);
  letter-spacing: -0.025em;
  color: var(--fg);
  white-space: nowrap;
}
.kwin-power-note {
  justify-self: end;
  max-width: 40ch;
  margin: 0;
  padding-left: 16px;
  border-left: 1px solid var(--line-strong);
  font-size: 14px;
  line-height: 1.5;
  color: var(--fg-muted);
}

/* ---------- Controls ---------- */

.kwin-controls {
  padding: clamp(18px, 2.6vw, 26px) clamp(16px, 3vw, 32px) clamp(20px, 3vw, 30px);
}
.kwin-range-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 12px;
}
.kwin-range-value {
  font: 500 13px/1 var(--font-mono);
  letter-spacing: 0.06em;
  color: var(--accent);
  font-variant-numeric: tabular-nums;
}
.kwin-range-field {
  --inset: 11px;
  --lift: 22px; /* room above the track for the "You are here" flag on narrow layouts */
  position: relative;
  padding: var(--lift) 0 34px;
}

input[type="range"].kwin-range-input {
  --p: 0.2433;
  -webkit-appearance: none;
  appearance: none;
  position: relative;
  z-index: 1;
  display: block;
  width: 100%;
  height: 40px;
  margin: 0;
  background: transparent;
  cursor: pointer;
}
input[type="range"].kwin-range-input::-webkit-slider-runnable-track {
  height: 2px;
  background: linear-gradient(
    90deg,
    var(--accent) 0 calc(var(--inset) + (100% - 2 * var(--inset)) * var(--p)),
    var(--line-strong) 0
  );
}
input[type="range"].kwin-range-input::-moz-range-track {
  height: 2px;
  background: var(--line-strong);
}
input[type="range"].kwin-range-input::-moz-range-progress {
  height: 2px;
  background: var(--accent);
}
input[type="range"].kwin-range-input::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 22px;
  height: 22px;
  margin-top: -10px;
  border-radius: 50%;
  background: var(--bg);
  border: 1px solid var(--accent);
  box-shadow: 0 0 0 5px var(--accent-soft), inset 0 0 0 6px var(--bg), inset 0 0 0 11px var(--accent);
}
input[type="range"].kwin-range-input::-moz-range-thumb {
  box-sizing: border-box;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--accent);
  border: 6px solid var(--bg);
  box-shadow: 0 0 0 1px var(--accent), 0 0 0 6px var(--accent-soft);
}
input[type="range"].kwin-range-input:focus-visible {
  outline: none;
}
input[type="range"].kwin-range-input:focus-visible::-webkit-slider-thumb {
  box-shadow: 0 0 0 3px var(--bg), 0 0 0 5px var(--accent), inset 0 0 0 6px var(--bg), inset 0 0 0 11px var(--accent);
}
input[type="range"].kwin-range-input:focus-visible::-moz-range-thumb {
  box-shadow: 0 0 0 1px var(--accent), 0 0 0 3px var(--bg), 0 0 0 5px var(--accent);
}

/* tick row: the input's thumb travels between the insets, so the ticks do too */
.kwin-scale {
  position: absolute;
  top: calc(var(--lift) + 26px);
  left: var(--inset);
  right: var(--inset);
  height: 6px;
  pointer-events: none;
}
.kwin-scale::before {
  /* a hairline every 0.1: ten times more power per step */
  content: "";
  position: absolute;
  inset: 0;
  border-right: 1px solid var(--line-strong);
  background: linear-gradient(90deg, var(--line-strong) 1px, transparent 1px) 0 0 / calc(100% / 30) 100% repeat-x;
}
.kwin-tick {
  position: absolute;
  top: 0;
  left: calc(var(--at) * 100%);
  width: 1px;
  height: 10px;
  background: var(--fg-dim);
}
.kwin-tick > span {
  position: absolute;
  top: 16px;
  left: 0;
  transform: translateX(-50%);
  font: 500 11px/1 var(--font-mono);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--fg-muted);
  white-space: nowrap;
}
.kwin-tick--0 {
  --at: 0;
}
.kwin-tick--0 > span {
  transform: translateX(-1px);
}
.kwin-tick--1 {
  --at: 0.33333;
}
.kwin-tick--2 {
  --at: 0.66667;
}
.kwin-tick--3 {
  --at: 1;
  margin-left: -1px;
}
.kwin-tick--3 > span {
  transform: translateX(calc(-100% + 1px));
}
.kwin-tick--1 > span,
.kwin-tick--2 > span,
.kwin-tick--3 > span {
  color: var(--fg);
}
/* "You are here": an accent pin through the track. On narrow layouts its label flies
   above the track like a flag, clear of the I label; wide containers keep it in the tick row. */
.kwin-tick--here {
  --at: 0.24333;
  top: -32px;
  height: 42px;
  background: var(--accent);
}
.kwin-tick--here > span {
  top: -13px;
  left: -1px;
  transform: none;
  color: var(--accent);
}
@container (min-width: 900px) {
  .kwin-range-field {
    --lift: 0px;
  }
  .kwin-tick--here {
    top: -11px;
    height: 21px;
  }
  .kwin-tick--here > span {
    top: 27px;
    left: 0;
    transform: translateX(calc(-100% - 10px));
  }
}

.kwin-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-top: 18px;
}
.kwin-goto {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.kwin .btn {
  white-space: nowrap;
}
.kwin-go[aria-current="true"] {
  border-color: var(--accent);
  background: var(--accent-soft);
  color: var(--fg);
}
.kwin-go[aria-current="true"]::before {
  content: "";
  flex: none;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--accent);
}
.kwin-tour[aria-pressed="true"] {
  border-color: var(--accent);
  background: var(--accent-soft);
  color: var(--fg);
}
.kwin-tour-icon {
  flex: none;
  width: 0;
  height: 0;
  border-style: solid;
  border-width: 5px 0 5px 8px;
  border-color: transparent transparent transparent var(--accent);
}
.kwin-tour[aria-pressed="true"] .kwin-tour-icon {
  width: 9px;
  height: 9px;
  border: 0;
  background: var(--accent);
}

/* ---------- Static fallback (no JS, or no canvas) ---------- */

.kwin-static {
  display: none;
  margin: 0;
}
html:not(.js) .kwin-static,
.kwin--static .kwin-static {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  background: var(--line);
}
html:not(.js) .kwin-stage,
html:not(.js) .kwin-readout,
html:not(.js) .kwin-controls,
html:not(.js) .kwin-bar-meta,
.kwin--static .kwin-stage,
.kwin--static .kwin-readout,
.kwin--static .kwin-controls,
.kwin--static .kwin-bar-meta {
  display: none;
}
.kwin-static > div {
  min-width: 0;
  padding: clamp(20px, 2.6vw, 28px);
  background: var(--bg-sunken);
}
.kwin-static dt {
  margin: 0 0 10px;
}
.kwin-static .kwin-kicker {
  margin-bottom: 10px;
}
.kwin-static-title {
  display: block;
  font: 500 1.3rem/1.15 var(--font-sans);
  letter-spacing: -0.02em;
  color: var(--fg);
}
.kwin-static dd {
  margin: 0;
  font-size: 15px;
  line-height: 1.55;
  color: var(--fg-muted);
}
@media (max-width: 960px) {
  html:not(.js) .kwin-static,
  .kwin--static .kwin-static {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}
@media (max-width: 560px) {
  html:not(.js) .kwin-static,
  .kwin--static .kwin-static {
    grid-template-columns: minmax(0, 1fr);
  }
}

/* ---------- Caption ---------- */

.kwin-caption {
  max-width: 72ch;
  margin: 12px 0 0;
  font-size: 14px;
  line-height: 1.5;
  color: var(--fg-dim);
}

/* ---------- Phones: HUD moves under the scene ---------- */

@media (max-width: 639.98px) {
  .kwin-view {
    aspect-ratio: 4 / 5;
  }
  .kwin-view::after {
    display: none;
  }
  .kwin-field {
    top: 24px;
    left: 26px;
  }
  .kwin-hint {
    right: 24px;
    bottom: 24px;
  }
  .kwin-hud {
    position: static;
    width: auto;
    padding: 20px 16px 22px;
    border-top: 1px solid var(--line);
    pointer-events: auto;
  }
  .kwin-hud-live {
    align-self: start;
  }
  .kwin-hud-sizer {
    display: block;
  }
  .kwin-text {
    max-width: none;
    text-shadow: none;
  }
  .kwin-readout {
    grid-template-columns: minmax(0, 1fr);
    padding: 18px 16px;
  }
  .kwin-power-note {
    justify-self: start;
  }
  .kwin-power-value {
    font-size: clamp(1.15rem, 5.4vw, 1.5rem);
  }
  .kwin-controls {
    padding: 18px 16px 20px;
  }
}

@media (max-width: 560px) {
  .kwin-bar {
    font-size: 10.5px;
    letter-spacing: 0.1em;
  }
  .kwin-tick--0 > span {
    display: none;
  }
  .kwin-actions {
    flex-direction: column;
    align-items: stretch;
  }
  .kwin-goto {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 6px;
  }
  .kwin-goto .btn {
    gap: 6px;
    padding: 0 4px;
    font-size: 11px;
    letter-spacing: 0.06em;
  }
  .kwin-go[aria-current="true"]::before {
    width: 4px;
    height: 4px;
  }
}