:root {
  --bg: #0e0f13;
  --bg-2: #171a20;
  --panel: #16181e;
  --panel-2: #111319;
  --line: #2a2f37;
  --line-soft: rgba(255, 255, 255, 0.08);
  --text: #eee9df;
  --muted: #87909c;
  --amber: #f5a524;
  --cyan: #67d9cc;
  --rose: #e25a79;
  --view: #090a0e;
  --shadow: 0 28px 80px rgba(0, 0, 0, 0.36);
}

* {
  box-sizing: border-box;
}

html {
  min-height: 100%;
  background: var(--bg);
}

body {
  min-width: 320px;
  min-height: 100vh;
  margin: 0;
  background:
    radial-gradient(circle at 24% 0%, rgba(103, 217, 204, 0.12), transparent 29rem),
    radial-gradient(circle at 92% 18%, rgba(226, 90, 121, 0.1), transparent 24rem),
    linear-gradient(180deg, #181b22 0%, var(--bg) 42%, #0b0c10 100%);
  color: var(--text);
  font-family: "Space Grotesk", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  letter-spacing: 0;
}

button,
input {
  font: inherit;
}

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

body.is-resizing {
  cursor: grabbing;
  user-select: none;
}

.page {
  width: 100%;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px 16px 34px;
}

.tool {
  width: min(100%, 760px);
}

.intro {
  display: grid;
  gap: 8px;
  margin-bottom: 18px;
}

.eyebrow {
  display: flex;
  align-items: center;
  gap: 9px;
  color: var(--amber);
  font-family: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 10.5px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.18em;
}

.eyebrow::before {
  width: 20px;
  height: 1px;
  background: currentColor;
  content: "";
}

.title-row {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 16px;
}

h1,
h2,
p {
  margin: 0;
}

h1 {
  font-size: clamp(38px, 8vw, 64px);
  font-weight: 700;
  line-height: 0.98;
}

.intro p {
  max-width: 560px;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.45;
}

.live-chip {
  min-width: 86px;
  border: 1px solid rgba(245, 165, 36, 0.38);
  border-radius: 999px;
  padding: 7px 11px;
  background: rgba(245, 165, 36, 0.1);
  color: var(--amber);
  font-family: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 13px;
  font-weight: 600;
  text-align: center;
  white-space: nowrap;
}

.viewport {
  position: relative;
  height: clamp(310px, 51vh, 500px);
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.055), transparent 32%),
    var(--view);
  box-shadow: var(--shadow);
}

.grid-bg {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.045) 1px, transparent 1px);
  background-size: 34px 34px;
  mask-image: radial-gradient(130% 110% at 50% 50%, #000 54%, transparent 100%);
}

.viewport::after {
  position: absolute;
  inset: auto 0 0;
  height: 34%;
  background: linear-gradient(180deg, transparent, rgba(0, 0, 0, 0.26));
  content: "";
  pointer-events: none;
}

.scale-area {
  position: absolute;
  inset: 52px 58px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.empty-state {
  color: var(--muted);
  font-size: 14px;
}

.frame-wrap {
  position: relative;
  width: 0;
  height: 0;
  transition:
    width 420ms cubic-bezier(0.22, 1, 0.36, 1),
    height 420ms cubic-bezier(0.22, 1, 0.36, 1);
}

body.is-resizing .frame-wrap {
  transition: none;
}

.frame {
  position: absolute;
  inset: 0;
  border: 1.5px solid var(--text);
  background:
    linear-gradient(90deg, transparent 33.333%, rgba(255, 255, 255, 0.055) 33.333% 33.6%, transparent 33.6% 66.6%, rgba(255, 255, 255, 0.055) 66.6% 66.9%, transparent 66.9%),
    linear-gradient(180deg, transparent 33.333%, rgba(255, 255, 255, 0.055) 33.333% 33.6%, transparent 33.6% 66.6%, rgba(255, 255, 255, 0.055) 66.6% 66.9%, transparent 66.9%),
    rgba(238, 233, 223, 0.055);
}

.diagonals {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  stroke: rgba(255, 255, 255, 0.1);
  stroke-width: 1;
  vector-effect: non-scaling-stroke;
}

.bracket {
  position: absolute;
  width: 16px;
  height: 16px;
  border-color: var(--amber);
  border-style: solid;
  border-width: 0;
}

.top-left {
  top: -5px;
  left: -5px;
  border-top-width: 2px;
  border-left-width: 2px;
}

.top-right {
  top: -5px;
  right: -5px;
  border-top-width: 2px;
  border-right-width: 2px;
}

.bottom-left {
  bottom: -5px;
  left: -5px;
  border-bottom-width: 2px;
  border-left-width: 2px;
}

.bottom-right {
  right: -5px;
  bottom: -5px;
  border-right-width: 2px;
  border-bottom-width: 2px;
}

.dim {
  position: absolute;
  color: rgba(255, 255, 255, 0.28);
}

.dim-x {
  top: -14px;
  right: 0;
  left: 0;
  height: 0;
  border-top: 1px solid currentColor;
}

.dim-y {
  top: 0;
  bottom: 0;
  left: -14px;
  width: 0;
  border-left: 1px solid currentColor;
}

.tick {
  position: absolute;
  background: currentColor;
}

.dim-x .tick {
  top: -4px;
  width: 1px;
  height: 8px;
}

.dim-y .tick {
  left: -4px;
  width: 8px;
  height: 1px;
}

.tick.start {
  top: 0;
  left: 0;
}

.dim-x .tick.start {
  top: -4px;
}

.dim-x .tick.end {
  top: -4px;
  right: 0;
}

.dim-y .tick.end {
  bottom: 0;
}

.dimension-label,
.center-label {
  position: absolute;
  border: 1px solid var(--line-soft);
  border-radius: 6px;
  background: rgba(9, 10, 14, 0.86);
  color: var(--text);
  font-family: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 11px;
  font-weight: 500;
  white-space: nowrap;
}

.dimension-label {
  padding: 2px 7px;
}

.width-label {
  top: -15px;
  left: 50%;
  transform: translate(-50%, -50%);
}

.height-label {
  top: 50%;
  left: -15px;
  transform: translate(-50%, -50%) rotate(-90deg);
}

.center-label {
  top: 50%;
  left: 50%;
  display: none;
  padding: 4px 8px;
  color: rgba(238, 233, 223, 0.68);
  transform: translate(-50%, -50%);
}

.resize-handle {
  position: absolute;
  z-index: 8;
  width: 30px;
  height: 30px;
  border: 0;
  background: transparent;
  color: var(--amber);
  cursor: grab;
  padding: 0;
  touch-action: none;
}

.resize-handle::after {
  position: absolute;
  inset: 10px;
  border: 2px solid currentColor;
  border-radius: 50%;
  background: #111319;
  box-shadow: 0 0 0 3px rgba(9, 10, 14, 0.74);
  content: "";
  transition:
    background 150ms ease,
    border-color 150ms ease,
    transform 150ms ease;
}

.resize-handle:hover::after,
.resize-handle:focus-visible::after {
  background: rgba(245, 165, 36, 0.18);
  transform: scale(1.18);
}

.handle-nw {
  top: 0;
  left: 0;
  cursor: nwse-resize;
  transform: translate(-50%, -50%);
}

.handle-n {
  top: 0;
  left: 50%;
  cursor: ns-resize;
  transform: translate(-50%, -50%);
}

.handle-ne {
  top: 0;
  right: 0;
  cursor: nesw-resize;
  transform: translate(50%, -50%);
}

.handle-e {
  top: 50%;
  right: 0;
  cursor: ew-resize;
  transform: translate(50%, -50%);
}

.handle-se {
  right: 0;
  bottom: 0;
  cursor: nwse-resize;
  transform: translate(50%, 50%);
}

.handle-s {
  bottom: 0;
  left: 50%;
  cursor: ns-resize;
  transform: translate(-50%, 50%);
}

.handle-sw {
  bottom: 0;
  left: 0;
  cursor: nesw-resize;
  transform: translate(-50%, 50%);
}

.handle-w {
  top: 50%;
  left: 0;
  cursor: ew-resize;
  transform: translate(-50%, -50%);
}

.handle-n::after,
.handle-s::after {
  inset: 11px 7px;
  border-radius: 999px;
}

.handle-e::after,
.handle-w::after {
  inset: 7px 11px;
  border-radius: 999px;
}

.readout {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  overflow: hidden;
  margin-top: 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--line);
}

.metric {
  min-width: 0;
  display: grid;
  gap: 7px;
  padding: 14px;
  background: rgba(22, 24, 30, 0.92);
}

.metric-label,
.field-label,
.presets-section h2 {
  color: var(--muted);
  font-family: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

.metric strong {
  min-width: 0;
  color: var(--text);
  font-family: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 17px;
  font-weight: 600;
}

.orientation {
  display: flex;
  align-items: center;
  gap: 8px;
}

.orientation span:last-child {
  overflow-wrap: anywhere;
}

.orientation-glyph {
  flex: none;
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.orientation-glyph::before {
  width: var(--glyph-w, 18px);
  height: var(--glyph-h, 10px);
  border: 1.5px solid var(--amber);
  border-radius: 2px;
  content: "";
}

.controls {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 46px minmax(0, 1fr);
  gap: 10px;
  align-items: end;
  margin-top: 16px;
}

.field {
  min-width: 0;
  display: grid;
  gap: 7px;
}

.input-shell {
  position: relative;
  display: block;
}

.input-shell input {
  width: 100%;
  min-height: 48px;
  border: 1px solid var(--line);
  border-radius: 8px;
  outline: none;
  background: var(--panel);
  color: var(--text);
  font-family: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 18px;
  font-weight: 600;
  padding: 12px 74px 12px 14px;
  transition:
    border-color 150ms ease,
    box-shadow 150ms ease,
    background 150ms ease;
}

.input-shell input:focus {
  border-color: rgba(245, 165, 36, 0.82);
  background: #191c22;
  box-shadow: 0 0 0 4px rgba(245, 165, 36, 0.1);
}

.input-shell > .unit {
  position: absolute;
  top: 50%;
  right: 13px;
  color: var(--muted);
  font-family: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 12px;
  transform: translateY(-50%);
  pointer-events: none;
}

.copy-button {
  position: absolute;
  top: 50%;
  right: 35px;
  width: 29px;
  height: 29px;
  display: grid;
  place-items: center;
  border: 1px solid transparent;
  border-radius: 7px;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  font-family: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 17px;
  line-height: 1;
  transform: translateY(-50%);
  transition:
    border-color 150ms ease,
    color 150ms ease,
    background 150ms ease;
}

.copy-button:hover,
.copy-button:focus-visible {
  border-color: rgba(245, 165, 36, 0.36);
  background: rgba(245, 165, 36, 0.1);
  color: var(--amber);
}

.copy-button.copied {
  border-color: rgba(103, 217, 204, 0.42);
  background: rgba(103, 217, 204, 0.1);
  color: var(--cyan);
}

.icon-button {
  width: 46px;
  height: 48px;
  display: grid;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  color: var(--text);
  cursor: pointer;
  transition:
    border-color 150ms ease,
    color 150ms ease,
    background 150ms ease,
    transform 150ms ease;
}

.icon-button:hover {
  border-color: rgba(245, 165, 36, 0.7);
  color: var(--amber);
  background: #191c22;
}

.icon-button:active {
  transform: translateY(1px);
}

.icon-button svg {
  width: 22px;
  height: 22px;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 2;
}

.presets-section {
  margin-top: 20px;
}

.presets-section h2 {
  margin-bottom: 10px;
}

.presets {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.preset {
  min-width: 78px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(22, 24, 30, 0.92);
  color: var(--text);
  cursor: pointer;
  padding: 9px 11px;
  text-align: left;
  transition:
    border-color 150ms ease,
    background 150ms ease,
    color 150ms ease,
    transform 150ms ease;
}

.preset:hover {
  border-color: #454c57;
  background: #191c22;
}

.preset:active {
  transform: translateY(1px);
}

.preset[aria-pressed="true"] {
  border-color: rgba(245, 165, 36, 0.86);
  background: rgba(245, 165, 36, 0.1);
}

.preset strong,
.preset span {
  display: block;
}

.preset strong {
  color: inherit;
  font-size: 14px;
  font-weight: 700;
}

.preset span {
  margin-top: 3px;
  color: var(--muted);
  font-family: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 10.5px;
}

.preset[aria-pressed="true"] strong {
  color: var(--amber);
}

.support {
  display: grid;
  justify-items: center;
  gap: 10px;
  margin-top: 24px;
  padding-top: 16px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 13px;
  text-align: center;
}

.support-button {
  min-height: 42px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border: 1px solid rgba(245, 165, 36, 0.46);
  border-radius: 8px;
  background: rgba(245, 165, 36, 0.1);
  color: var(--amber);
  font-size: 14px;
  font-weight: 600;
  padding: 10px 14px;
  text-decoration: none;
  transition:
    border-color 150ms ease,
    background 150ms ease,
    transform 150ms ease;
}

.support-button:hover {
  border-color: rgba(245, 165, 36, 0.82);
  background: rgba(245, 165, 36, 0.16);
}

.support-button:active {
  transform: translateY(1px);
}

.made-by {
  font-size: 12px;
}

.made-by a {
  color: var(--amber);
  text-decoration: none;
}

.made-by a:hover {
  text-decoration: underline;
}

:focus-visible {
  outline: 2px solid var(--amber);
  outline-offset: 3px;
}

@media (max-width: 620px) {
  .page {
    align-items: start;
    padding: 18px 12px 26px;
  }

  .title-row {
    align-items: start;
  }

  h1 {
    max-width: 300px;
  }

  .intro p {
    font-size: 14px;
  }

  .viewport {
    height: clamp(300px, 48vh, 410px);
  }

  .scale-area {
    inset: 49px 40px;
  }

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

  .metric {
    grid-template-columns: minmax(96px, auto) 1fr;
    align-items: center;
  }
}

@media (max-width: 420px) {
  .page {
    padding-inline: 10px;
  }

  .title-row {
    display: grid;
  }

  .live-chip {
    justify-self: start;
  }

  .scale-area {
    inset: 47px 32px;
  }

  .controls {
    grid-template-columns: minmax(0, 1fr) 42px minmax(0, 1fr);
    gap: 7px;
  }

  .icon-button {
    width: 42px;
  }

  .input-shell input {
    font-size: 16px;
    padding-left: 10px;
  }

  .metric {
    padding: 12px;
  }

  .support {
    display: grid;
  }

  .support-button {
    width: 100%;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
}