/* ==========================================================================
   Mural — camada de apresentação
   ========================================================================== */

:root {
  /* superfícies (madeira escura, nunca azulada) */
  --bg-0: #14110f;
  --bg-1: #1c1815;
  --bg-2: #241f1b;
  --bg-3: #2c2622;
  --desk: #17130f;

  /* traços */
  --line: rgba(255, 255, 255, .08);
  --line-strong: rgba(255, 255, 255, .14);
  --line-soft: rgba(255, 255, 255, .045);

  /* texto */
  --fg: #f5f1ea;
  --fg-muted: #a39b90;
  --fg-faint: #7c746a;

  /* acento único */
  --ember: #e2653a;
  --ember-hi: #f07b4f;
  --ember-dim: rgba(226, 101, 58, .16);
  --ember-ring: rgba(226, 101, 58, .45);

  --danger: #e05a52;
  --ok: #6fbf8b;

  /* tipografia */
  --font-ui: 'Inter', system-ui, -apple-system, 'Segoe UI', sans-serif;
  --font-display: 'Fraunces', Georgia, 'Times New Roman', serif;

  /* ritmo de 8px */
  --s1: 4px;  --s2: 8px;  --s3: 12px; --s4: 16px;
  --s5: 24px; --s6: 32px; --s7: 48px; --s8: 64px;

  --r-sm: 6px;
  --r-md: 10px;
  --r-lg: 14px;
  --r-xl: 20px;
  --r-pill: 999px;

  --shadow-1: 0 1px 2px rgba(0, 0, 0, .4);
  --shadow-2: 0 6px 20px rgba(0, 0, 0, .45);
  --shadow-3: 0 18px 44px rgba(0, 0, 0, .55);
  --paper-shadow:
    0 1px 1px rgba(0, 0, 0, .34),
    0 8px 18px rgba(0, 0, 0, .38),
    0 32px 64px rgba(0, 0, 0, .46);

  --t-fast: 120ms cubic-bezier(.2, .7, .3, 1);
  --t-mid: 160ms cubic-bezier(.2, .7, .3, 1);

  --topbar-h: 56px;
  --sidebar-w: 304px;
  --tray-h: 132px;
}

/* --------------------------------------------------------------- reset -- */
*, *::before, *::after { box-sizing: border-box; }

html, body { height: 100%; }

body {
  margin: 0;
  background: var(--bg-0);
  color: var(--fg);
  font-family: var(--font-ui);
  font-size: 14px;
  line-height: 1.45;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow: hidden;
}

h1, h2, h3, p { margin: 0; }

svg {
  width: 18px;
  height: 18px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.6;
  stroke-linecap: round;
  stroke-linejoin: round;
  display: block;
}

button, input, select { font: inherit; color: inherit; }

button { cursor: pointer; background: none; border: 0; padding: 0; }

[hidden] { display: none !important; }

.sr-only {
  position: absolute; width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden;
  clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}

:focus-visible {
  outline: 2px solid var(--ember);
  outline-offset: 2px;
  border-radius: var(--r-sm);
}

.skip-link {
  position: absolute; left: var(--s3); top: -60px; z-index: 200;
  background: var(--ember); color: #fff;
  padding: var(--s2) var(--s4);
  border-radius: var(--r-md);
  text-decoration: none; font-weight: 600;
  transition: top var(--t-mid);
}
.skip-link:focus { top: var(--s3); }

/* ============================================================== topbar == */
.topbar {
  position: fixed; inset: 0 0 auto 0; z-index: 60;
  height: var(--topbar-h);
  display: flex; align-items: center; justify-content: space-between;
  gap: var(--s4);
  padding: 0 var(--s4);
  background: linear-gradient(180deg, #1e1a16, #171310);
  border-bottom: 1px solid var(--line);
  box-shadow: 0 1px 0 rgba(0, 0, 0, .5);
}

.topbar__left,
.topbar__right { display: flex; align-items: center; gap: var(--s3); }
.topbar__left { min-width: 0; }
.topbar__center { display: flex; align-items: center; gap: var(--s2); }
.topbar__right { justify-content: flex-end; }

.topbar__menu { display: none; }

.wordmark { display: flex; align-items: baseline; gap: var(--s2); min-width: 0; }

.wordmark__mark {
  width: 10px; height: 18px; border-radius: 2px;
  align-self: center;
  background: linear-gradient(160deg, var(--ember-hi), var(--ember));
  box-shadow: 0 0 0 1px rgba(0, 0, 0, .4), 0 2px 6px rgba(226, 101, 58, .35);
  transform: rotate(-6deg);
}

.wordmark__name {
  font-family: var(--font-display);
  font-weight: 600; font-size: 19px; letter-spacing: .01em;
  color: var(--fg);
}

.wordmark__tag {
  font-size: 11px; color: var(--fg-faint);
  letter-spacing: .08em; text-transform: uppercase;
  white-space: nowrap;
}

.btn-cluster {
  display: flex; align-items: center; gap: 2px;
  padding: 3px;
  background: var(--bg-2);
  border: 1px solid var(--line);
  border-radius: var(--r-md);
}

/* -------------------------------------------------------------- botões -- */
.icon-btn {
  display: grid; place-items: center;
  width: 30px; height: 30px;
  border-radius: var(--r-sm);
  color: var(--fg-muted);
  transition: background var(--t-fast), color var(--t-fast);
}
.icon-btn:hover { background: rgba(255, 255, 255, .07); color: var(--fg); }
.icon-btn:active { background: rgba(255, 255, 255, .11); }
.icon-btn:disabled { opacity: .35; cursor: default; }
.icon-btn:disabled:hover { background: none; color: var(--fg-muted); }
.icon-btn--sm { width: 28px; height: 28px; }
.icon-btn--sm svg { width: 16px; height: 16px; }
.icon-btn--danger:hover { color: var(--danger); background: rgba(224, 90, 82, .12); }

.zoom-fit {
  min-width: 56px; height: 30px; padding: 0 var(--s2);
  border-radius: var(--r-sm);
  color: var(--fg);
  font-size: 12px; font-weight: 500;
  font-variant-numeric: tabular-nums;
  transition: background var(--t-fast);
}
.zoom-fit:hover { background: rgba(255, 255, 255, .07); }

.btn {
  display: inline-flex; align-items: center; justify-content: center;
  gap: var(--s2);
  height: 34px; padding: 0 var(--s4);
  border-radius: var(--r-md);
  font-size: 13px; font-weight: 500;
  border: 1px solid transparent;
  white-space: nowrap;
  transition: background var(--t-fast), border-color var(--t-fast),
              color var(--t-fast), transform var(--t-fast),
              box-shadow var(--t-fast);
}
.btn__icon { width: 16px; height: 16px; flex: none; }
.btn:active { transform: translateY(1px); }

.btn--primary {
  background: linear-gradient(180deg, var(--ember-hi), var(--ember));
  color: #fff; font-weight: 600;
  box-shadow: 0 1px 0 rgba(255, 255, 255, .18) inset,
              0 4px 14px rgba(226, 101, 58, .28);
}
.btn--primary:hover { filter: brightness(1.06); }

.btn--ghost {
  background: var(--bg-2);
  border-color: var(--line);
  color: var(--fg);
}
.btn--ghost:hover { background: var(--bg-3); border-color: var(--line-strong); }

.btn--block { width: 100%; }
.btn--lg { height: 42px; padding: 0 var(--s5); font-size: 14px; }

/* ================================================================ app == */
.app {
  position: fixed;
  inset: var(--topbar-h) 0 0 0;
  display: flex;
}

/* ============================================================= sidebar == */
.sidebar {
  flex: none;
  width: var(--sidebar-w);
  background: var(--bg-1);
  border-right: 1px solid var(--line);
  display: flex; flex-direction: column;
  min-height: 0;
  z-index: 50;
}

.sidebar__scroll {
  flex: 1;
  min-height: 0;
  overflow-y: auto;
  overscroll-behavior: contain;
  padding-bottom: var(--s6);
  scrollbar-width: thin;
  scrollbar-color: rgba(255, 255, 255, .16) transparent;
}
.sidebar__scroll::-webkit-scrollbar { width: 8px; }
.sidebar__scroll::-webkit-scrollbar-track { background: transparent; }
.sidebar__scroll::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, .12);
  border-radius: var(--r-pill);
  border: 2px solid transparent;
  background-clip: padding-box;
}
.sidebar__scroll::-webkit-scrollbar-thumb:hover { background: rgba(255, 255, 255, .22); background-clip: padding-box; }

.sidebar__foot {
  padding: var(--s4) var(--s5) 0;
  font-size: 11px; line-height: 1.5;
  color: var(--fg-faint);
}

.sidebar-backdrop {
  position: fixed; inset: 0; z-index: 45;
  background: rgba(8, 6, 5, .62);
  backdrop-filter: blur(2px);
  animation: fade-in var(--t-mid) both;
}

/* ------------------------------------------------------------- grupos -- */
.group { border-bottom: 1px solid var(--line-soft); }

.group__head {
  display: flex; align-items: center; justify-content: space-between;
  gap: var(--s2);
  padding: var(--s4) var(--s5);
  cursor: pointer;
  list-style: none;
  user-select: none;
  transition: background var(--t-fast);
}
.group__head::-webkit-details-marker { display: none; }
.group__head:hover { background: rgba(255, 255, 255, .025); }
.group__head:focus-visible { outline-offset: -2px; }

.group__legend {
  font-size: 10.5px; font-weight: 600;
  letter-spacing: .16em; text-transform: uppercase;
  color: var(--fg-muted);
}

.group__chev {
  width: 15px; height: 15px;
  color: var(--fg-faint);
  transition: transform var(--t-mid);
}
.group[open] > .group__head .group__chev { transform: rotate(180deg); }

.group__body {
  display: flex; flex-direction: column; gap: var(--s4);
  padding: 0 var(--s5) var(--s5);
}

/* Contextual: only on screen while a photo is selected, so it says so. */
.group--photo {
  background: linear-gradient(180deg, var(--ember-dim), transparent 120px);
  box-shadow: inset 3px 0 0 var(--ember);
  animation: fade-in var(--t-mid) both;
}
.group--photo .group__legend { color: var(--ember-hi); }

/* ------------------------------------------------------------- campos -- */
.field { display: flex; flex-direction: column; gap: var(--s2); }

.field--row {
  flex-direction: row; align-items: center; justify-content: space-between;
  gap: var(--s3);
}

.field__label {
  font-size: 12px; font-weight: 500;
  color: var(--fg-muted);
}

.readout {
  font-size: 11.5px;
  color: var(--fg-faint);
  font-variant-numeric: tabular-nums;
  padding: var(--s2) var(--s3);
  background: rgba(0, 0, 0, .22);
  border: 1px solid var(--line-soft);
  border-radius: var(--r-sm);
}

.warning {
  font-size: 11.5px; line-height: 1.5;
  color: #f0b48f;
  padding: var(--s2) var(--s3);
  background: rgba(226, 101, 58, .1);
  border: 1px solid rgba(226, 101, 58, .28);
  border-radius: var(--r-sm);
}

/* -------------------------------------------------------------- select -- */
.select { position: relative; display: block; }

.select select {
  appearance: none; -webkit-appearance: none;
  width: 100%; height: 34px;
  padding: 0 var(--s7) 0 var(--s3);
  background: var(--bg-2);
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  color: var(--fg);
  font-size: 13px;
  cursor: pointer;
  transition: border-color var(--t-fast), background var(--t-fast);
}
.select select:hover { border-color: var(--line-strong); background: var(--bg-3); }
.select select option { background: var(--bg-2); color: var(--fg); }
.select select optgroup { background: var(--bg-1); color: var(--fg-muted); font-style: normal; }

.select__chev {
  position: absolute; right: var(--s3); top: 50%;
  transform: translateY(-50%);
  width: 15px; height: 15px;
  color: var(--fg-faint);
  pointer-events: none;
}

/* -------------------------------------------------- grupos segmentados -- */
.seg {
  display: flex;
  gap: 2px;
  padding: 3px;
  background: rgba(0, 0, 0, .26);
  border: 1px solid var(--line);
  border-radius: var(--r-md);
}
.seg--wrap { flex-wrap: wrap; }

.seg__btn {
  flex: 1 1 0;
  min-width: 0;
  height: 28px;
  padding: 0 var(--s2);
  border-radius: 7px;
  font-size: 12px; font-weight: 500;
  color: var(--fg-muted);
  white-space: nowrap;
  overflow: hidden; text-overflow: ellipsis;
  transition: background var(--t-fast), color var(--t-fast), box-shadow var(--t-fast);
}
.seg--wrap .seg__btn { flex: 1 1 calc(50% - 2px); }

.seg__btn:hover { color: var(--fg); background: rgba(255, 255, 255, .05); }

.seg__btn.is-active {
  background: var(--bg-3);
  color: var(--fg);
  box-shadow: 0 1px 0 rgba(255, 255, 255, .06) inset, 0 1px 3px rgba(0, 0, 0, .4);
}
.seg__btn.is-active::after {
  content: '';
  display: block;
  height: 2px; width: 14px;
  margin: 3px auto 0;
  border-radius: var(--r-pill);
  background: var(--ember);
}

/* Category styles carry real names ("Cartão de embarque"), which the two-column
   grid would clip into nonsense. One row each, and the marker moves to the side. */
.seg--decor { flex-direction: column; gap: 1px; }
.seg--decor .seg__btn { flex: 0 0 auto; width: 100%; text-align: left; }
.seg--decor .seg__btn.is-active::after { display: none; }
.seg--decor .seg__btn.is-active {
  box-shadow: inset 2px 0 0 var(--ember), 0 1px 3px rgba(0, 0, 0, .4);
}

/* ------------------------------------------------------ campos numéricos -- */
.num {
  display: flex; align-items: center; gap: var(--s1);
  flex: 1 1 0; min-width: 0;
  height: 34px;
  padding: 0 var(--s2);
  background: var(--bg-2);
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  transition: border-color var(--t-fast);
}
.num:hover { border-color: var(--line-strong); }
.num:focus-within { border-color: var(--ember); box-shadow: 0 0 0 3px var(--ember-dim); }
.num--compact { flex: none; width: 76px; }

.num__tag {
  font-size: 10px; font-weight: 600;
  letter-spacing: .08em;
  color: var(--fg-faint);
}

.num input {
  width: 100%; min-width: 0;
  background: none; border: 0; outline: none;
  font-size: 13px;
  font-variant-numeric: tabular-nums;
  color: var(--fg);
}
.num input::-webkit-outer-spin-button,
.num input::-webkit-inner-spin-button { -webkit-appearance: none; margin: 0; }
.num input[type=number] { -moz-appearance: textfield; }

.custom-size__row { display: flex; align-items: center; gap: var(--s2); }
.custom-size__x { color: var(--fg-faint); font-size: 12px; }

/* ------------------------------------------------------------ sliders -- */
.slider { display: flex; flex-direction: column; gap: var(--s2); }

.slider__top {
  display: flex; align-items: baseline; justify-content: space-between;
  gap: var(--s2);
}

.slider__label { font-size: 12px; font-weight: 500; color: var(--fg-muted); }

.slider__value {
  font-size: 11.5px; font-weight: 600;
  font-variant-numeric: tabular-nums;
  color: var(--fg);
  padding: 1px 6px;
  min-width: 30px; text-align: center;
  background: rgba(255, 255, 255, .05);
  border-radius: var(--r-sm);
}

input[type=range] {
  -webkit-appearance: none; appearance: none;
  width: 100%; height: 18px;
  margin: 0; padding: 0;
  background: transparent;
  cursor: pointer;
}

input[type=range]::-webkit-slider-runnable-track {
  height: 3px;
  border-radius: var(--r-pill);
  background: rgba(255, 255, 255, .12);
  box-shadow: 0 1px 0 rgba(0, 0, 0, .35) inset;
}
input[type=range]::-webkit-slider-thumb {
  -webkit-appearance: none; appearance: none;
  width: 14px; height: 14px;
  margin-top: -5.5px;
  border-radius: 50%;
  background: var(--fg);
  border: 1px solid rgba(0, 0, 0, .5);
  box-shadow: 0 1px 3px rgba(0, 0, 0, .5);
  transition: transform var(--t-fast), background var(--t-fast),
              box-shadow var(--t-fast);
}
input[type=range]:hover::-webkit-slider-thumb { transform: scale(1.12); }
input[type=range]:active::-webkit-slider-thumb,
input[type=range]:focus-visible::-webkit-slider-thumb {
  background: var(--ember);
  box-shadow: 0 0 0 5px var(--ember-dim);
}

input[type=range]::-moz-range-track {
  height: 3px;
  border-radius: var(--r-pill);
  background: rgba(255, 255, 255, .12);
}
input[type=range]::-moz-range-progress {
  height: 3px;
  border-radius: var(--r-pill);
  background: rgba(255, 255, 255, .28);
}
input[type=range]::-moz-range-thumb {
  width: 13px; height: 13px;
  border-radius: 50%;
  background: var(--fg);
  border: 1px solid rgba(0, 0, 0, .5);
  box-shadow: 0 1px 3px rgba(0, 0, 0, .5);
  transition: transform var(--t-fast), background var(--t-fast),
              box-shadow var(--t-fast);
}
input[type=range]:hover::-moz-range-thumb { transform: scale(1.12); }
input[type=range]:active::-moz-range-thumb,
input[type=range]:focus-visible::-moz-range-thumb {
  background: var(--ember);
  box-shadow: 0 0 0 5px var(--ember-dim);
}
input[type=range]:focus { outline: none; }
input[type=range]:focus-visible { outline: 2px solid transparent; }

/* ----------------------------------------------------------- amostras -- */
.swatches { display: flex; gap: var(--s2); }

.swatch {
  flex: 1 1 0; min-width: 0;
  display: flex; align-items: center; gap: var(--s2);
  height: 34px; padding: 0 var(--s2);
  background: var(--bg-2);
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  cursor: pointer;
  transition: border-color var(--t-fast), background var(--t-fast);
}
.swatch:hover { border-color: var(--line-strong); background: var(--bg-3); }
.swatch:focus-within { border-color: var(--ember); box-shadow: 0 0 0 3px var(--ember-dim); }

.swatch input[type=color] {
  -webkit-appearance: none; appearance: none;
  width: 22px; height: 22px; flex: none;
  padding: 0; border: 0; background: none;
  border-radius: var(--r-sm);
  cursor: pointer;
  overflow: hidden;
}
.swatch input[type=color]::-webkit-color-swatch-wrapper { padding: 0; }
.swatch input[type=color]::-webkit-color-swatch {
  border: 1px solid rgba(0, 0, 0, .5);
  border-radius: var(--r-sm);
}
.swatch input[type=color]::-moz-color-swatch {
  border: 1px solid rgba(0, 0, 0, .5);
  border-radius: var(--r-sm);
}

.swatch__name {
  font-size: 11.5px; color: var(--fg-muted);
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}

/* ------------------------------------------------------------- switch -- */
.switch { display: inline-flex; align-items: center; cursor: pointer; }
.switch input { position: absolute; opacity: 0; width: 0; height: 0; }

.switch__track {
  position: relative;
  display: block;
  width: 38px; height: 22px;
  border-radius: var(--r-pill);
  background: rgba(255, 255, 255, .1);
  border: 1px solid var(--line);
  transition: background var(--t-mid), border-color var(--t-mid);
}

.switch__knob {
  position: absolute; top: 2px; left: 2px;
  width: 16px; height: 16px;
  border-radius: 50%;
  background: var(--fg-muted);
  box-shadow: 0 1px 3px rgba(0, 0, 0, .5);
  transition: transform var(--t-mid), background var(--t-mid);
}

.switch input:checked + .switch__track {
  background: var(--ember);
  border-color: transparent;
}
.switch input:checked + .switch__track .switch__knob {
  transform: translateX(16px);
  background: #fff;
}
.switch input:focus-visible + .switch__track {
  outline: 2px solid var(--ember);
  outline-offset: 2px;
}

/* =============================================================== main == */
.main {
  flex: 1;
  min-width: 0; min-height: 0;
  display: flex; flex-direction: column;
}

/* --------------------------------------------------------------- mesa -- */
.desk {
  position: relative;
  flex: 1;
  min-height: 0;
  display: flex; align-items: center; justify-content: center;
  padding: var(--s6);
  background:
    radial-gradient(120% 90% at 50% 0%, rgba(255, 214, 170, .05), transparent 62%),
    radial-gradient(80% 70% at 50% 110%, rgba(0, 0, 0, .5), transparent 70%),
    var(--desk);
}
.desk::after {
  content: '';
  position: absolute; inset: 0;
  z-index: 0;
  pointer-events: none;
  background-image:
    repeating-linear-gradient(94deg, rgba(255, 255, 255, .012) 0 2px, transparent 2px 7px);
  opacity: .8;
}

.stage {
  position: relative;
  z-index: 1;
  width: 100%; height: 100%;
  outline: none;
}

/* The canvas is the viewport rather than the sheet: zoom and pan live in the
   render transform, so preview and print run through one drawing routine. */
#board-canvas {
  display: block;
  width: 100%; height: 100%;
  touch-action: none;
}
#board-canvas.is-grab { cursor: grab; }
#board-canvas.is-panning { cursor: grabbing; }
#board-canvas.is-cell { cursor: pointer; }

/* ------------------------------------------------------- estado vazio -- */
.empty {
  position: absolute; inset: 0;
  display: grid; place-items: center;
  padding: var(--s4);
}

.empty__card {
  max-width: 380px;
  display: flex; flex-direction: column; align-items: center;
  text-align: center;
  gap: var(--s3);
  padding: var(--s6) var(--s5);
  background: rgba(28, 24, 21, .92);
  backdrop-filter: blur(10px);
  border: 1px solid var(--line);
  border-radius: var(--r-xl);
  box-shadow: var(--shadow-3);
}

.empty__art {
  position: relative;
  width: 108px; height: 74px;
  margin-bottom: var(--s2);
}
.empty__sheet {
  position: absolute;
  border-radius: 3px;
  border: 1px solid rgba(0, 0, 0, .35);
  box-shadow: 0 4px 12px rgba(0, 0, 0, .45);
}
.empty__sheet--a {
  width: 46px; height: 56px; left: 4px; top: 10px;
  background: linear-gradient(150deg, #cdbfae, #a6957f);
  transform: rotate(-9deg);
}
.empty__sheet--b {
  width: 52px; height: 40px; right: 2px; top: 4px;
  background: linear-gradient(150deg, #e6dccd, #bfae97);
  transform: rotate(6deg);
}
.empty__sheet--c {
  width: 44px; height: 34px; left: 34px; bottom: 0;
  background: linear-gradient(150deg, var(--ember-hi), var(--ember));
  transform: rotate(-3deg);
}

.empty__title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 26px;
  line-height: 1.15;
  letter-spacing: -.01em;
}

.empty__text {
  font-size: 13.5px; line-height: 1.55;
  color: var(--fg-muted);
  max-width: 30ch;
}

.empty__hint { font-size: 11.5px; color: var(--fg-faint); }

/* ------------------------------------------------- barra de seleção --- */
.cell-toolbar {
  position: absolute;
  left: 50%; bottom: var(--s5);
  transform: translateX(-50%);
  z-index: 20;
  display: flex; align-items: center; gap: var(--s1);
  padding: var(--s1) var(--s2);
  background: rgba(36, 31, 27, .96);
  backdrop-filter: blur(12px);
  border: 1px solid var(--line-strong);
  border-radius: var(--r-pill);
  box-shadow: var(--shadow-3);
}

.cell-toolbar__sep {
  width: 1px; height: 18px;
  background: var(--line-strong);
  margin: 0 var(--s1);
}

.cell-toolbar__zoom {
  display: flex; align-items: center; gap: var(--s2);
  padding: 0 var(--s2);
}
.cell-toolbar__icon { width: 15px; height: 15px; color: var(--fg-faint); flex: none; }
.cell-toolbar__zoom input[type=range] { width: 96px; }

/* -------------------------------------------------------- progresso --- */
.progress {
  position: absolute;
  left: 50%; bottom: var(--s4);
  transform: translateX(-50%);
  z-index: 25;
  display: flex; align-items: center; gap: var(--s3);
  width: min(400px, calc(100% - var(--s7)));
  padding: var(--s3) var(--s4);
  background: rgba(28, 24, 21, .96);
  backdrop-filter: blur(10px);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  box-shadow: var(--shadow-3);
}

.progress__bar {
  flex: 1;
  height: 4px;
  border-radius: var(--r-pill);
  background: rgba(255, 255, 255, .1);
  overflow: hidden;
}

.progress__fill {
  width: 0%;
  height: 100%;
  border-radius: var(--r-pill);
  background: linear-gradient(90deg, var(--ember), var(--ember-hi));
  transition: width var(--t-mid);
}

.progress__label {
  flex: none;
  font-size: 11.5px;
  color: var(--fg-muted);
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}

/* ============================================================== tray == */
.tray {
  flex: none;
  height: var(--tray-h);
  display: grid;
  grid-template-columns: 1fr auto;
  grid-template-rows: auto 1fr;
  align-items: center;
  gap: var(--s2) var(--s4);
  padding: var(--s3) var(--s5);
  background: var(--bg-1);
  border-top: 1px solid var(--line);
}

.tray__head {
  grid-column: 1 / -1;
  display: flex; align-items: baseline; gap: var(--s3);
}

.tray__title {
  font-size: 10.5px; font-weight: 600;
  letter-spacing: .16em; text-transform: uppercase;
  color: var(--fg-muted);
}

.tray__count {
  font-size: 11.5px; color: var(--fg-faint);
  font-variant-numeric: tabular-nums;
}

.tray__strip {
  grid-column: 1;
  display: flex; align-items: center; gap: var(--s2);
  height: 72px;
  min-width: 0;
  overflow-x: auto; overflow-y: hidden;
  padding: 2px;
  border-radius: var(--r-md);
  scrollbar-width: thin;
  scrollbar-color: rgba(255, 255, 255, .16) transparent;
}
.tray__strip::-webkit-scrollbar { height: 6px; }
.tray__strip::-webkit-scrollbar-track { background: transparent; }
.tray__strip::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, .14);
  border-radius: var(--r-pill);
}

.tray__strip:empty {
  border: 1px dashed var(--line-strong);
  background: rgba(0, 0, 0, .18);
}
.tray__strip:empty::before {
  content: 'Nenhuma foto ainda — adicione ou arraste arquivos para cá.';
  display: grid; place-items: center;
  width: 100%; height: 100%;
  font-size: 12px; color: var(--fg-faint);
  padding: 0 var(--s3);
  text-align: center;
}

/* miniaturas geradas em runtime */
.tray__strip > * {
  position: relative;
  flex: none;
  width: 64px; height: 64px;
  border-radius: var(--r-sm);
  overflow: hidden;
  background: var(--bg-3);
  border: 1px solid var(--line);
  cursor: grab;
  transition: border-color var(--t-fast), transform var(--t-fast);
}
.tray__strip > *:hover { border-color: var(--line-strong); transform: translateY(-2px); }
.tray__strip > *.is-active { border-color: var(--ember); box-shadow: 0 0 0 2px var(--ember-dim); }
.tray__strip img { width: 100%; height: 100%; object-fit: cover; display: block; }

.tray__x {
  position: absolute; top: 3px; right: 3px;
  width: 18px; height: 18px;
  display: grid; place-items: center;
  border-radius: var(--r-pill);
  background: rgba(0, 0, 0, .6);
  color: #fff;
  font-size: 15px; line-height: 1;
  opacity: 0;
  transition: opacity var(--t-fast);
}
.tray__item:hover .tray__x,
.tray__x:focus-visible { opacity: 1; }

.tray__add { grid-column: 2; grid-row: 2; }

/* controle sem efeito no estilo escolhido */
.is-muted { opacity: .38; }
.is-muted input, .is-muted select { pointer-events: none; }

/* ======================================================== drop overlay == */
.drop {
  position: fixed; inset: 0; z-index: 150;
  display: grid; place-items: center;
  padding: var(--s6);
  background: rgba(12, 9, 8, .78);
  backdrop-filter: blur(6px);
  animation: fade-in var(--t-mid) both;
}

.drop__inner {
  display: flex; flex-direction: column; align-items: center;
  gap: var(--s2);
  padding: var(--s7) var(--s8);
  border: 2px dashed var(--ember);
  border-radius: var(--r-xl);
  background: rgba(28, 24, 21, .82);
  text-align: center;
}

.drop__icon { width: 34px; height: 34px; color: var(--ember); margin-bottom: var(--s2); }

.drop__title {
  font-family: var(--font-display);
  font-size: 22px; font-weight: 600;
}

.drop__text { font-size: 12.5px; color: var(--fg-muted); }

/* ============================================================= toasts == */
.toasts {
  position: fixed;
  right: var(--s4); bottom: var(--s4);
  z-index: 300;
  display: flex; flex-direction: column-reverse;
  gap: var(--s2);
  pointer-events: none;
  max-width: min(360px, calc(100vw - var(--s6)));
}

.toast {
  pointer-events: auto;
  display: flex; align-items: flex-start; gap: var(--s3);
  padding: var(--s3) var(--s4);
  background: var(--bg-2);
  border: 1px solid var(--line-strong);
  border-radius: var(--r-md);
  box-shadow: var(--shadow-3);
  font-size: 13px;
  color: var(--fg);
  cursor: pointer;
  opacity: 0;
  transform: translateY(8px) scale(.98);
  transition: opacity var(--t-mid), transform var(--t-mid);
}
.toast.is-in { opacity: 1; transform: none; }
.toast.is-out { opacity: 0; transform: translateY(6px) scale(.98); }

.toast__dot {
  flex: none;
  width: 7px; height: 7px;
  margin-top: 6px;
  border-radius: 50%;
  background: var(--fg-muted);
}
.toast--success .toast__dot { background: var(--ok); }
.toast--error .toast__dot { background: var(--danger); }
.toast--error { border-color: rgba(224, 90, 82, .4); }

.toast__text { line-height: 1.4; }

@keyframes fade-in { from { opacity: 0; } to { opacity: 1; } }
@keyframes slide-in { from { transform: translateX(-100%); } to { transform: none; } }

/* ========================================================= responsivo == */
@media (max-width: 1023px) {
  :root { --sidebar-w: 300px; --tray-h: 124px; }

  .topbar__menu { display: grid; }
  .topbar { padding: 0 var(--s3); gap: var(--s2); }
  .wordmark__tag { display: none; }

  .sidebar {
    position: fixed;
    top: var(--topbar-h); bottom: 0; left: 0;
    box-shadow: var(--shadow-3);
    animation: slide-in var(--t-mid) both;
  }
  .sidebar[hidden] { display: none !important; }

  .desk { padding: var(--s4); }
}

@media (max-width: 720px) {
  .topbar__center { gap: 2px; }
  .btn-cluster--zoom .zoom-fit { min-width: 46px; }
  .wordmark__name { font-size: 17px; }
  .tray { padding: var(--s3) var(--s4); }
  .tray__strip { height: 64px; }
  .tray__strip > * { width: 56px; height: 56px; }
  .empty__card { padding: var(--s5) var(--s4); }
  .empty__title { font-size: 22px; }
}

@media (max-width: 420px) {
  .btn--primary { padding: 0 var(--s3); }
  .toasts { right: var(--s2); left: var(--s2); bottom: var(--s2); max-width: none; }
}

/* ================================================= movimento reduzido == */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
    scroll-behavior: auto !important;
  }
  .toast { opacity: 1; transform: none; }
}