/* ==========================================================================
   Metatype design system
   A midnight gallery for lettering. Dark chrome, one lit canvas.
   Tokens are documented in DESIGN.md.
   ========================================================================== */

:root {
  color-scheme: dark;

  /* Surfaces. Elevation is a color step, never a shadow */
  --void: #000000;        /* input wells */
  --abyss: #090a0b;       /* gallery wall behind the canvas */
  --obsidian: #0f1011;    /* panel canvas */
  --graphite: #2e2e2e;    /* raised cards and tiles */
  --steel: #3f4041;       /* hover / pressed */
  --silver: #cacaca;      /* inverted light surface */

  /* Ink */
  --pure: #ffffff;        /* primary action fill, brightest element */
  --cloud: #f5f5f7;       /* headings */
  --ash: #9f9fa0;         /* body copy, descriptions */
  --fog: #6a6b6b;         /* muted labels, disabled */

  /* Chromatic. Fills and signals only, never small text */
  --iris: #847dff;
  --iris-deep: #4b49aa;
  --iris-pale: #d1c9ff;
  --cyan: #00b3dd;

  /* Hairlines */
  --line: rgba(255, 255, 255, .09);
  --line-strong: rgba(255, 255, 255, .16);
  --glass: rgba(255, 255, 255, .1);

  /* Radii */
  --r-control: 8px;
  --r-card: 16px;
  --r-tile: 20px;
  --r-pill: 9999px;

  /* Three voices: serif for emotion, sans for UI, mono for data */
  --font-display: "Instrument Serif", "Didot", "Bodoni 72", Georgia, serif;
  --font-sans: "Inter", ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-mono: "Roboto Mono", ui-monospace, SFMono-Regular, Menlo, monospace;

  font-family: var(--font-sans);
  font-weight: 400;
  background: var(--abyss);
  color: var(--cloud);
  -webkit-font-smoothing: antialiased;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-width: 320px;
  min-height: 100vh;
  background: var(--abyss);
}

button, input, select, textarea { font: inherit; color: inherit; }
button { cursor: pointer; }

::selection { background: var(--iris); color: var(--void); }

:where(button, input, select, a, label, [tabindex]):focus-visible {
  outline: 2px solid var(--iris);
  outline-offset: 2px;
}

.panel::-webkit-scrollbar { width: 10px; }
.panel::-webkit-scrollbar-thumb { border: 3px solid transparent; border-radius: var(--r-pill); background: var(--steel); background-clip: content-box; }
.panel::-webkit-scrollbar-thumb:hover { background: #565758; background-clip: content-box; }

/* --- Type utilities ------------------------------------------------------ */

.mono-label,
.panel-heading .index,
.canvas-topline,
.canvas-footer,
.status,
.hint p,
.technical-note span,
.field > span,
.color-field > label,
.compact-field > span,
.mini-range-field > span > b,
.range-field > span > b {
  font-family: var(--font-mono);
  font-weight: 400;
  text-transform: uppercase;
  letter-spacing: .18em;
}

.app-shell {
  height: 100vh;
  height: 100dvh;
  display: grid;
  grid-template-rows: 68px minmax(0, 1fr);
  overflow: hidden;
  background: var(--obsidian);
}

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

.topbar {
  position: relative;
  z-index: 5;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 24px;
  padding: 0 20px;
  background: rgba(15, 16, 17, .72);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border-bottom: 1px solid var(--line);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  color: var(--cloud);
  text-decoration: none;
  font-family: var(--font-display);
  font-size: 22px;
  line-height: 1;
  letter-spacing: -.01em;
}

.brand i { font-style: italic; }

.brand-mark {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--iris);
  position: relative;
  flex: none;
}

.brand-mark::after {
  content: "";
  position: absolute;
  width: 11px;
  height: 11px;
  left: 10px;
  top: 1px;
  border-radius: 50%;
  background: var(--obsidian);
}

.status {
  margin: 0;
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 6px 14px;
  border: 1px solid var(--line-strong);
  border-radius: var(--r-pill);
  background: rgba(255, 255, 255, .06);
  color: var(--ash);
  font-size: 10px;
}

.status span {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 0 3px rgba(0, 179, 221, .18);
}

.top-actions { display: flex; justify-content: flex-end; align-items: center; gap: 8px; }

.button {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border: 1px solid transparent;
  border-radius: var(--r-control);
  padding: 10px 16px;
  font-size: 13px;
  font-weight: 400;
  transition: background-color .15s ease, border-color .15s ease, color .15s ease;
}

.button-quiet { color: var(--ash); background: transparent; border-color: transparent; }
.button-quiet:not(:disabled):hover { color: var(--cloud); background: var(--glass); }

.button-ghost { color: var(--cloud); background: transparent; border-color: var(--line-strong); }
.button-ghost:not(:disabled):hover { background: var(--glass); border-color: var(--pure); }

.button-primary { color: var(--void); background: var(--pure); border-color: var(--pure); }
.button-primary:not(:disabled):hover { background: var(--cloud); }
.button-primary .arrow { font-size: 15px; line-height: 1; }

.button:disabled { cursor: default; opacity: .35; }

/* --- Workspace ------------------------------------------------------------ */

.workspace {
  min-height: 0;
  display: grid;
  grid-template-columns: 268px minmax(420px, 1fr) 272px;
  background: var(--obsidian);
}

.panel {
  min-width: 0;
  min-height: 0;
  padding: 28px 22px 40px;
  background: var(--obsidian);
  overflow-y: auto;
  scrollbar-width: thin;
  scrollbar-color: var(--steel) transparent;
}

.tools-panel { border-right: 1px solid var(--line); }
.controls-panel { border-left: 1px solid var(--line); }

.panel-heading { margin-bottom: 26px; }
.panel-heading .index { display: block; margin-bottom: 12px; color: var(--fog); font-size: 10px; }
.panel-heading h1,
.panel-heading h2 {
  margin: 0;
  font-family: var(--font-display);
  font-size: 38px;
  font-weight: 400;
  line-height: .9;
  letter-spacing: -.015em;
  color: var(--cloud);
}

/* --- Fields --------------------------------------------------------------- */

.field > span,
.color-field > label,
.compact-field > span {
  display: block;
  margin-bottom: 9px;
  color: var(--fog);
  font-size: 10px;
}

.input-action {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 38px;
  border: 1px solid var(--line);
  border-radius: var(--r-control);
  background: var(--void);
  overflow: hidden;
  transition: border-color .15s ease;
}
.input-action:focus-within { border-color: var(--iris); }
.input-action input { min-width: 0; border: 0; padding: 11px 14px; background: transparent; color: var(--cloud); font-size: 14px; outline: 0; }
.input-action input::placeholder { color: var(--fog); }
.input-action button {
  border: 0;
  border-left: 1px solid var(--line);
  background: transparent;
  color: var(--pure);
  font-size: 18px;
  line-height: 1;
  transition: background-color .15s ease;
}
.input-action button:hover { background: var(--steel); }

.type-controls { display: grid; gap: 14px; margin-top: 20px; }
.compact-field { display: grid; gap: 0; min-width: 0; }
.compact-field > span { font-size: 9px; letter-spacing: .16em; }
.compact-field-row { display: grid; grid-template-columns: minmax(0, .78fr) minmax(0, 1.22fr); gap: 10px; }

.compact-field input,
.compact-field select {
  min-width: 0;
  width: 100%;
  height: 38px;
  border: 1px solid var(--line);
  border-radius: var(--r-control);
  padding: 0 12px;
  color: var(--cloud);
  background: var(--void);
  font-size: 13px;
  transition: border-color .15s ease;
}
.compact-field input:hover,
.compact-field select:hover { border-color: var(--line-strong); }
.compact-field input:focus,
.compact-field select:focus { outline: 0; border-color: var(--iris); }

select {
  appearance: none;
  -webkit-appearance: none;
  padding-right: 30px !important;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 8' fill='none' stroke='%239f9fa0' stroke-width='1.4'><path d='M1 1.5 6 6.5 11 1.5'/></svg>");
  background-repeat: no-repeat;
  background-position: right 12px center;
  background-size: 10px;
}
select optgroup { background: var(--obsidian); color: var(--fog); }
select option { background: var(--obsidian); color: var(--cloud); }

.font-source-row { display: grid; grid-template-columns: auto minmax(0, 1fr); align-items: center; gap: 10px; margin-top: -4px; }
.font-source-row button {
  min-height: 30px;
  padding: 0 12px;
  border: 1px solid var(--line-strong);
  border-radius: var(--r-control);
  background: transparent;
  color: var(--cloud);
  font-family: var(--font-mono);
  font-size: 9px;
  text-transform: uppercase;
  letter-spacing: .12em;
  transition: background-color .15s ease, border-color .15s ease;
}
.font-source-row button:hover { background: var(--glass); border-color: var(--pure); }
.font-source-row button:disabled { cursor: wait; opacity: .45; }
.font-source-row span { color: var(--fog); font-size: 10px; line-height: 1.35; }

.compact-input-action { grid-template-columns: minmax(0, 1fr) 36px; }
.compact-input-action input { height: 36px; padding: 0 12px; font-size: 12px; }
.compact-input-action button { font-size: 16px; }

.mini-range-field { display: block; }
.mini-range-field > span,
.range-field > span { display: flex; justify-content: space-between; align-items: baseline; gap: 8px; margin-bottom: 12px; }
.mini-range-field > span > b { color: var(--fog); font-size: 9px; letter-spacing: .16em; }
.mini-range-field output,
.range-field output {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .02em;
  color: var(--cloud);
  text-align: right;
}

/* --- Tiles ---------------------------------------------------------------- */

.tool-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-top: 22px; }
.tool-button {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  padding: 20px 8px 14px;
  border: 0;
  border-radius: var(--r-tile);
  background: var(--graphite);
  color: var(--ash);
  font-family: var(--font-mono);
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: .16em;
  transition: background-color .15s ease, color .15s ease;
}
.tool-button:hover { background: var(--steel); color: var(--cloud); }
.shape-icon { display: block; width: 26px; height: 26px; background: var(--pure); }
.circle-icon { border-radius: 50%; }
.square-icon { border-radius: 6px; transform: rotate(-7deg); }

.import-button {
  margin-top: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 15px;
  border: 1px solid var(--line);
  border-radius: var(--r-card);
  background: transparent;
  color: var(--ash);
  font-size: 13px;
  cursor: pointer;
  transition: background-color .15s ease, border-color .15s ease, color .15s ease;
}
.import-button:hover { background: var(--glass); border-color: var(--line-strong); color: var(--cloud); }
.import-button svg { width: 17px; fill: none; stroke: currentColor; stroke-width: 1.5; }

.hint { margin-top: 26px; padding: 20px; border-radius: var(--r-card); background: var(--graphite); }
.hint p { margin: 0 0 10px; color: var(--cloud); font-size: 10px; }
.hint span { display: block; color: var(--ash); font-size: 12px; line-height: 1.55; }

.selection-actions { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-top: 22px; }
.selection-actions button {
  padding: 11px;
  border: 1px solid var(--line-strong);
  border-radius: var(--r-control);
  background: transparent;
  color: var(--cloud);
  font-size: 13px;
  transition: background-color .15s ease, border-color .15s ease;
}
.selection-actions button:not(:disabled):hover { background: var(--glass); border-color: var(--pure); }
.selection-actions button:disabled { opacity: .3; cursor: default; }

/* --- Canvas column -------------------------------------------------------- */

.canvas-column {
  min-width: 0;
  min-height: 0;
  display: grid;
  grid-template-rows: minmax(46px, auto) minmax(0, 1fr) 40px;
  background: var(--abyss);
}

.canvas-topline,
.canvas-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  padding: 0 20px;
  color: var(--fog);
  font-size: 10px;
}
.canvas-topline p, .canvas-footer span { margin: 0; }
.canvas-topline p:last-child { display: flex; align-items: center; gap: 6px; }

kbd {
  padding: 3px 6px;
  border: 1px solid var(--line-strong);
  border-radius: 5px;
  background: var(--glass);
  color: var(--ash);
  font: inherit;
  letter-spacing: .08em;
}

.canvas-frame {
  min-width: 0;
  min-height: 0;
  display: grid;
  place-items: center;
  padding: 4px 20px;
  container-type: size;
}

.canvas-wrap {
  position: relative;
  --canvas-ratio: 1.578947;
  width: auto;
  height: min(100cqh, calc(100cqw / var(--canvas-ratio)));
  max-width: 100cqw;
  aspect-ratio: var(--canvas-ratio);
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--r-card);
  background: var(--abyss);
}
.canvas-wrap.is-transparent {
  --checker: rgba(255, 255, 255, .07);
  background-color: var(--steel);
  background-image:
    linear-gradient(45deg, var(--checker) 25%, transparent 25%, transparent 75%, var(--checker) 75%),
    linear-gradient(45deg, var(--checker) 25%, transparent 25%, transparent 75%, var(--checker) 75%);
  background-size: 20px 20px;
  background-position: 0 0, 10px 10px;
}

#stage { width: 100%; height: 100%; display: block; touch-action: none; user-select: none; }
#gooLayer [data-id] { cursor: grab; }
#gooLayer [data-id]:active { cursor: grabbing; }
#stage.is-selecting { cursor: crosshair; }
#selectionLayer [data-handle] { pointer-events: all; }
#selectionLayer [data-handle="resize"] { cursor: nwse-resize; }
#selectionLayer [data-handle="rotate"] { cursor: grab; }
#selectionLayer [data-handle="rotate"]:active { cursor: grabbing; }

.empty-state {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  display: grid;
  justify-items: center;
  gap: 22px;
  padding: 40px 52px;
  border-radius: var(--r-tile);
  background: var(--graphite);
  text-align: center;
}
.empty-state p {
  margin: 0;
  font-family: var(--font-display);
  font-size: 32px;
  line-height: .95;
  color: var(--cloud);
}
.empty-state p i { font-style: italic; }
.empty-state button {
  padding: 11px 18px;
  border: 0;
  border-radius: var(--r-control);
  background: var(--pure);
  color: var(--void);
  font-size: 13px;
}
.empty-state button:hover { background: var(--cloud); }
.empty-state[hidden] { display: none; }

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

.control-section { padding: 0 0 20px; border-bottom: 1px solid var(--line); }
.control-section + .control-section { padding-top: 20px; }
.section-label { min-height: 18px; margin-bottom: 14px; display: flex; align-items: center; justify-content: space-between; }
.section-label b,
.section-label span {
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 400;
  text-transform: uppercase;
  letter-spacing: .18em;
}
.section-label b { color: var(--cloud); }
.section-label span { color: var(--fog); }
.canvas-controls { display: grid; gap: 12px; }
.dimension-row { display: grid; grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr); align-items: end; gap: 8px; }
.dimension-row > span { padding-bottom: 11px; color: var(--fog); font-family: var(--font-mono); font-size: 11px; }
.apply-button {
  min-height: 38px;
  border: 0;
  border-radius: var(--r-control);
  color: var(--void);
  background: var(--pure);
  font-size: 13px;
}
.apply-button:hover { background: var(--cloud); }
.control-section .range-field:first-of-type { border-top: 0; padding-top: 0; }

.range-field { display: block; padding: 20px 0; border-top: 1px solid var(--line); }
.range-field > span > b { color: var(--fog); font-size: 10px; }
.range-field:first-of-type { border-top: 0; padding-top: 0; }

input[type="range"] {
  width: 100%;
  height: 2px;
  margin: 0;
  appearance: none;
  -webkit-appearance: none;
  border-radius: var(--r-pill);
  background: var(--steel);
  accent-color: var(--pure);
}
input[type="range"]::-webkit-slider-thumb {
  appearance: none;
  -webkit-appearance: none;
  width: 14px;
  height: 14px;
  border: 0;
  border-radius: 50%;
  background: var(--pure);
  transition: transform .12s ease;
}
input[type="range"]:hover::-webkit-slider-thumb { transform: scale(1.15); }
input[type="range"]::-moz-range-thumb { width: 14px; height: 14px; border: 0; border-radius: 50%; background: var(--pure); }
input[type="range"]:disabled { opacity: .3; }
input[type="range"]:disabled::-webkit-slider-thumb { background: var(--fog); }

.color-field { padding: 20px 0; border-top: 1px solid var(--line); }
.color-row { display: grid; grid-template-columns: 38px minmax(0, 1fr); gap: 10px; }
/* A silver plate behind the swatch keeps near-black shape colors legible. */
.color-row input[type="color"] {
  width: 38px;
  height: 38px;
  padding: 3px;
  border: 0;
  border-radius: var(--r-control);
  background: var(--silver);
  cursor: pointer;
  overflow: hidden;
}
.color-row input[type="color"]::-webkit-color-swatch-wrapper { padding: 0; }
.color-row input[type="color"]::-webkit-color-swatch { border: 0; border-radius: 5px; }
.color-row input[type="color"]::-moz-color-swatch { border: 0; border-radius: 5px; }
.color-row input[type="text"] {
  min-width: 0;
  height: 38px;
  border: 1px solid var(--line);
  border-radius: var(--r-control);
  padding: 0 12px;
  background: var(--void);
  color: var(--cloud);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .04em;
  text-transform: uppercase;
  transition: border-color .15s ease;
}
.color-row input[type="text"]:focus { outline: 0; border-color: var(--iris); }

.toggle-row {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 0;
  border-top: 1px solid var(--line);
  cursor: pointer;
}
.toggle-row span { display: grid; gap: 4px; }
.toggle-row b { color: var(--cloud); font-size: 13px; font-weight: 400; }
.toggle-row small { color: var(--fog); font-size: 11px; }
.toggle-row input { position: absolute; opacity: 0; width: 0; height: 0; }
.toggle-row i { flex: none; width: 38px; height: 21px; border-radius: var(--r-pill); background: var(--steel); position: relative; transition: background-color .15s ease; }
.toggle-row i::after { content: ""; position: absolute; width: 15px; height: 15px; top: 3px; left: 3px; border-radius: 50%; background: var(--pure); transition: transform .15s ease; }
.toggle-row input:checked + i { background: var(--iris); }
.toggle-row input:checked + i::after { transform: translateX(17px); }
.toggle-row input:focus-visible + i { outline: 2px solid var(--iris); outline-offset: 2px; }

.technical-note {
  margin-top: 28px;
  padding: 24px;
  border-radius: var(--r-tile);
  background: var(--iris-deep);
}
.technical-note span { display: block; color: var(--iris-pale); font-size: 10px; }
.technical-note p { margin: 14px 0 0; color: var(--pure); font-size: 13px; line-height: 1.5; }

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

.toast {
  position: fixed;
  left: 50%;
  bottom: 32px;
  z-index: 10;
  transform: translate(-50%, 12px);
  padding: 12px 18px;
  border-radius: var(--r-control);
  color: var(--void);
  background: var(--pure);
  font-size: 13px;
  opacity: 0;
  pointer-events: none;
  transition: opacity .18s ease, transform .18s ease;
}
.toast.visible { transform: translate(-50%, 0); opacity: 1; }

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

@media (max-width: 1100px) {
  .topbar { grid-template-columns: 1fr auto; }
  .status { display: none; }
  .workspace { grid-template-columns: 232px minmax(380px, 1fr) 236px; }
  .panel { padding-inline: 16px; }
  .panel-heading h1, .panel-heading h2 { font-size: 32px; }
}

@media (max-width: 780px) {
  .app-shell { height: auto; min-height: 100vh; overflow: visible; grid-template-rows: auto auto; }
  .topbar { grid-template-columns: minmax(0, 1fr) auto; padding: 12px; height: auto; min-height: 64px; }
  .workspace { grid-template-columns: minmax(0, 1fr); }
  .canvas-column { order: -1; grid-template-rows: auto auto auto; }
  /* Height is unbounded here, so the canvas sizes from width alone. */
  .canvas-frame { container-type: inline-size; padding: 14px 12px; }
  .canvas-wrap { width: 100cqw; height: auto; }
  .canvas-topline { flex-direction: column; align-items: flex-start; gap: 8px; padding: 14px 14px 4px; }
  .tools-panel, .controls-panel { border: 0; border-top: 1px solid var(--line); }
  .top-actions { flex-wrap: wrap; justify-content: flex-end; gap: 6px; }
  .button { padding: 9px 12px; font-size: 12px; }
  .empty-state { padding: 28px 30px; }
  .empty-state p { font-size: 26px; }
}

@media (prefers-reduced-motion: reduce) {
  /* The universal selector skips pseudo-elements, so name them too. */
  *,
  *::before,
  *::after { transition-duration: .01ms !important; animation-duration: .01ms !important; }
}