/* ── PUDRUS TOOL SHELL ─────────────────────────────────
   Layout for tools built with js/tool-shell.js.
   Desktop: side panel left, image right.
   Phone:   image on top, controls below, action bar pinned to the bottom. */

.ts-page { overflow: hidden; }
.ts-page footer { display: none; }

.ts {
  --ts-side: 360px;
  --ts-touch: 44px;
  position: fixed;
  inset: var(--nav-height) 0 0 0;
  display: grid;
  grid-template-columns: var(--ts-side) minmax(0, 1fr);
  grid-template-rows: minmax(0, 1fr);
  grid-template-areas: "side stage";
  padding: 0; /* main has a bottom padding meant for the home page */
  background: var(--bg);
}

/* ── Stage (image) ── */
.ts-stage {
  grid-area: stage;
  position: relative;
  display: flex; align-items: center; justify-content: center;
  min-width: 0; min-height: 0;
  padding: 24px;
  background:
    radial-gradient(circle at 50% 40%, rgba(102,255,51,0.04), transparent 60%),
    var(--bg);
  overflow: hidden;
}
.ts-stage.is-drag { outline: 2px dashed var(--c1); outline-offset: -12px; }

.ts-canvas {
  display: none;
  max-width: 100%; max-height: 100%;
  box-shadow: 0 0 0 1px var(--border), 0 12px 40px rgba(0,0,0,0.6);
}
.ts-stage.has-image .ts-canvas { display: block; }
.ts-stage.is-cropping .ts-canvas { cursor: grab; touch-action: none; }
.ts-stage.is-cropping .ts-canvas:active { cursor: grabbing; }

.ts-empty {
  display: flex; flex-direction: column; align-items: center; gap: 6px;
  width: min(420px, 100%);
}
.ts-empty-pick {
  display: flex; flex-direction: column; align-items: center; gap: 10px;
  width: 100%;
  padding: 48px 24px;
  background: transparent;
  border: 1px dashed var(--c3);
  border-radius: 12px;
  color: var(--text);
  font-family: var(--font);
  cursor: pointer;
  transition: border-color .2s, background .2s;
}
.ts-empty-pick:hover, .ts-empty-pick:focus-visible { border-color: var(--c1); background: rgba(102,255,51,0.04); outline: none; }
.ts-empty-sample {
  min-height: 44px; padding: 0 12px;
  background: none; border: 0;
  color: var(--c1); font-family: var(--font); font-size: 12px; letter-spacing: 1px;
  text-decoration: underline; text-underline-offset: 4px; cursor: pointer;
}
.ts-empty-sample:hover { color: #fff; }
.ts-empty-icon { font-size: 40px; color: var(--c1); }
.ts-empty-title { font-size: 15px; letter-spacing: 2px; text-transform: uppercase; color: #fff; }
.ts-empty-hint { font-size: 12px; color: var(--text2); line-height: 1.5; text-align: center; }
.ts-stage.has-image .ts-empty { display: none; }

.ts-badge {
  position: absolute; top: 16px; left: 50%; transform: translateX(-50%);
  padding: 6px 14px; border-radius: 99px;
  background: rgba(5,5,8,0.85); border: 1px solid var(--c1);
  color: var(--c1); font-size: 12px; letter-spacing: 2px; text-transform: uppercase;
  opacity: 0; pointer-events: none; transition: opacity .15s;
}
.ts-stage.is-comparing .ts-badge { opacity: 1; }
/* Split compare: "Original" label on the left, drag anywhere on the image */
.ts-stage.is-split .ts-badge { opacity: 1; left: 20px; transform: none; }
.ts-stage.is-split .ts-canvas { cursor: ew-resize; touch-action: none; }

/* Undo / redo over the image */
.ts-history {
  position: absolute; top: 12px; right: 12px; z-index: 2;
  display: none; gap: 6px;
}
.ts-stage.has-history .ts-history { display: flex; }
.ts-hbtn {
  width: 40px; height: 40px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  background: rgba(5,5,8,0.8); border: 1px solid var(--c3); color: var(--text);
  font-size: 18px; line-height: 1; cursor: pointer;
  -webkit-backdrop-filter: blur(6px); backdrop-filter: blur(6px);
  transition: border-color .15s, color .15s, opacity .15s;
}
.ts-hbtn:hover:not(:disabled) { border-color: var(--c1); color: var(--c1); }
.ts-hbtn:disabled { opacity: 0.3; cursor: default; }
.ts-hbtn:focus-visible { outline: 2px solid var(--c1); outline-offset: 2px; }

.ts-status {
  position: absolute; bottom: 12px; left: 50%; transform: translate(-50%, 8px);
  max-width: calc(100% - 24px);
  padding: 6px 12px; border-radius: 6px;
  background: rgba(5,5,8,0.85); border: 1px solid var(--border);
  color: var(--text); font-size: 12px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
  opacity: 0; pointer-events: none; transition: opacity .2s, transform .2s;
}
.ts-status.is-on { opacity: 1; transform: translate(-50%, 0); }

/* ── Side panel ── */
.ts-side {
  grid-area: side;
  display: flex; flex-direction: column;
  min-height: 0;
  background: var(--bg2);
  border-right: 1px solid var(--border);
}

.ts-head { padding: 18px 20px 12px; }
.ts-back {
  display: inline-block; margin-bottom: 10px;
  font-size: 12px; letter-spacing: 1px; color: var(--text2); text-decoration: none;
}
.ts-back:hover { color: var(--c1); }
.ts-head h1 { font-size: 16px; letter-spacing: 3px; text-transform: uppercase; color: #fff; font-weight: 600; }
.ts-desc { margin-top: 6px; font-size: 12px; line-height: 1.5; color: var(--text2); }

.ts-tabs {
  display: flex; gap: 4px;
  padding: 0 20px;
  border-bottom: 1px solid var(--border);
}
.ts-tab {
  flex: 1;
  min-height: var(--ts-touch);
  background: none; border: 0; border-bottom: 2px solid transparent;
  color: var(--text2); font-family: var(--font); font-size: 12px; letter-spacing: 1.5px; text-transform: uppercase;
  cursor: pointer;
}
.ts-tab:hover { color: var(--text); }
.ts-tab.is-on { color: var(--c1); border-bottom-color: var(--c1); }

.ts-panels { flex: 1; min-height: 0; overflow-y: auto; padding: 16px 20px 8px; overscroll-behavior: contain; }

.ts-presets { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 18px; }
.ts-chip {
  min-height: 36px; padding: 0 14px;
  background: var(--bg3); border: 1px solid var(--c3); border-radius: 99px;
  color: var(--text); font-family: var(--font); font-size: 12px; letter-spacing: 0.5px;
  cursor: pointer; transition: border-color .15s, background .15s, color .15s;
}
.ts-chip:hover { border-color: var(--c1); }
.ts-chip:active, .ts-chip.is-on { background: var(--c1); border-color: var(--c1); color: var(--bg); }

.ts-row { margin-bottom: 14px; }
.ts-row-head { display: flex; justify-content: space-between; align-items: baseline; gap: 8px; }
.ts-row label { font-size: 12px; letter-spacing: 1px; color: var(--text); cursor: default; user-select: none; }
.ts-val { font-size: 12px; color: var(--c1); font-variant-numeric: tabular-nums; }

/* Range: big invisible hit area, thin visible track */
.ts input[type="range"] {
  -webkit-appearance: none; appearance: none;
  display: block; width: 100%; min-width: 0;
  height: 32px; margin: 2px 0 0;
  background: transparent; cursor: pointer;
  flex: none;
}
.ts input[type="range"]::-webkit-slider-runnable-track { height: 4px; background: var(--c3); border-radius: 2px; }
.ts input[type="range"]::-moz-range-track { height: 4px; background: var(--c3); border-radius: 2px; }
.ts input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 20px; height: 20px; margin-top: -8px;
  border-radius: 50%; background: var(--c1); border: 3px solid var(--bg2);
  box-shadow: 0 0 0 1px var(--c1);
}
.ts input[type="range"]::-moz-range-thumb {
  width: 16px; height: 16px; border-radius: 50%;
  background: var(--c1); border: 3px solid var(--bg2); box-shadow: 0 0 0 1px var(--c1);
}
.ts input[type="range"]:focus-visible { outline: none; }
.ts input[type="range"]:focus-visible::-webkit-slider-thumb { box-shadow: 0 0 0 4px rgba(102,255,51,0.35); }

.ts-row-toggle { display: flex; justify-content: space-between; align-items: center; min-height: var(--ts-touch); margin-bottom: 4px; }
.ts-switch {
  -webkit-appearance: none; appearance: none;
  position: relative; width: 48px; height: 28px; flex: none;
  border-radius: 99px; background: var(--c3); cursor: pointer; transition: background .2s;
}
.ts-switch::after {
  content: ""; position: absolute; top: 3px; left: 3px;
  width: 22px; height: 22px; border-radius: 50%; background: var(--text); transition: transform .2s;
}
.ts-switch:checked { background: var(--c1); }
.ts-switch:checked::after { transform: translateX(20px); background: var(--bg); }
.ts-switch:focus-visible { outline: 2px solid var(--c1); outline-offset: 2px; }

.ts-select, .ts-text {
  display: block; width: 100%;
  min-height: var(--ts-touch); margin-top: 6px; padding: 0 12px;
  background: var(--bg3); border: 1px solid var(--c3); border-radius: 8px;
  color: var(--text); font-family: var(--font); font-size: 13px;
}
.ts-select {
  -webkit-appearance: none; appearance: none; cursor: pointer;
  padding-right: 36px;
  background-image: linear-gradient(45deg, transparent 50%, var(--c1) 50%), linear-gradient(135deg, var(--c1) 50%, transparent 50%);
  background-position: calc(100% - 18px) 50%, calc(100% - 13px) 50%;
  background-size: 5px 5px; background-repeat: no-repeat;
}
.ts-select:focus-visible, .ts-text:focus-visible { outline: none; border-color: var(--c1); box-shadow: 0 0 0 3px rgba(102,255,51,0.2); }
.ts-text::placeholder { color: var(--text2); opacity: 0.7; }
.ts-color {
  -webkit-appearance: none; appearance: none;
  width: 56px; height: 36px; flex: none; padding: 3px;
  background: var(--bg3); border: 1px solid var(--c3); border-radius: 8px; cursor: pointer;
}
.ts-color::-webkit-color-swatch-wrapper { padding: 0; }
.ts-color::-webkit-color-swatch { border: 0; border-radius: 5px; }
.ts-color::-moz-color-swatch { border: 0; border-radius: 5px; }
.ts-row[hidden] { display: none; }

.ts-note { font-size: 12px; color: var(--text2); line-height: 1.5; }

.ts-more { display: flex; flex-wrap: wrap; gap: 4px 16px; padding: 12px 0 4px; border-top: 1px solid var(--border); margin-top: 8px; }
.ts-link {
  min-height: 36px; padding: 0;
  background: none; border: 0;
  color: var(--text2); font-family: var(--font); font-size: 12px; letter-spacing: 1px;
  cursor: pointer; text-decoration: underline; text-underline-offset: 3px;
}
.ts-link:hover { color: var(--c1); }
.ts-sendmenu { flex-basis: 100%; display: flex; flex-wrap: wrap; gap: 6px; padding: 4px 0 6px; }
.ts-sendmenu[hidden] { display: none; }
.ts-sendmenu .ts-chip { min-height: 34px; font-size: 11px; }

/* ── Action bar ── */
.ts-bar {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px;
  padding: 12px 20px calc(12px + env(safe-area-inset-bottom));
  border-top: 1px solid var(--border);
  background: var(--bg2);
}
.ts-btn {
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 2px;
  min-height: 52px; padding: 4px;
  background: var(--bg3); border: 1px solid var(--c3); border-radius: 10px;
  color: var(--text); font-family: var(--font);
  cursor: pointer; user-select: none; -webkit-user-select: none; -webkit-touch-callout: none;
  transition: border-color .15s, background .15s, transform .1s;
}
.ts-btn:hover:not(:disabled) { border-color: var(--c1); }
.ts-btn:active:not(:disabled) { transform: scale(0.96); }
.ts-btn:disabled { opacity: 0.35; cursor: default; }
.ts-btn:focus-visible { outline: 2px solid var(--c1); outline-offset: 2px; }
.ts-btn-icon { font-size: 18px; line-height: 1; }
.ts-btn-label { font-size: 11px; letter-spacing: 1px; text-transform: uppercase; }
.ts-btn-primary { background: var(--c1); border-color: var(--c1); color: var(--bg); font-weight: 600; }
.ts-btn-primary:hover:not(:disabled) { background: #fff; border-color: #fff; }
.ts-btn.is-on { border-color: var(--c1); color: var(--c1); background: rgba(102,255,51,0.1); }

.ts-file { position: absolute; width: 1px; height: 1px; opacity: 0; pointer-events: none; }

/* ── Phone ── */
@media (max-width: 768px) {
  .ts-page nav .nav-links { display: none; }
  .ts-page nav { flex-wrap: nowrap; }

  .ts {
    grid-template-columns: minmax(0, 1fr);
    grid-template-rows: minmax(0, 46%) minmax(0, 1fr);
    grid-template-areas: "stage" "side";
  }
  .ts-stage { padding: 12px; }
  .ts-empty-pick { padding: 32px 16px; }

  .ts-side { border-right: 0; border-top: 1px solid var(--border); }
  .ts-head { display: flex; align-items: baseline; gap: 12px; padding: 10px 16px 6px; }
  .ts-back { margin: 0; font-size: 0; }
  .ts-back::before { content: "←"; font-size: 18px; }
  .ts-head h1 { font-size: 13px; }
  .ts-desc { display: none; }
  .ts-tabs { padding: 0 8px; }
  .ts-panels { padding: 14px 16px 8px; }
  .ts-row label, .ts-val { font-size: 13px; }
  .ts input[type="range"] { height: 36px; }
  .ts input[type="range"]::-webkit-slider-thumb { width: 26px; height: 26px; margin-top: -11px; }
  .ts input[type="range"]::-moz-range-thumb { width: 22px; height: 22px; }
  .ts-bar { padding: 8px 12px calc(8px + env(safe-area-inset-bottom)); gap: 6px; }
  .ts-hbtn { -webkit-backdrop-filter: none; backdrop-filter: none; background: rgba(5,5,8,0.92); }
}

/* Touch screens: the native slider ignores touches so scrolling the panel can't move it.
   tool-shell.js turns a horizontal drag on the row into a value change instead. */
@media (pointer: coarse) {
  .ts-row-range { touch-action: pan-y; }
  .ts-row-range input[type="range"] { pointer-events: none; }
  .ts-row-range.is-dragging label, .ts-row-range.is-dragging .ts-val { color: var(--c1); }
  .ts-row-range.is-dragging input[type="range"]::-webkit-slider-thumb { transform: scale(1.3); box-shadow: 0 0 0 6px rgba(102,255,51,0.25); }
  .ts-row-range.is-dragging input[type="range"]::-moz-range-thumb { transform: scale(1.3); box-shadow: 0 0 0 6px rgba(102,255,51,0.25); }
}

/* Phone in landscape: side by side again, compact */
@media (max-width: 950px) and (orientation: landscape) and (max-height: 500px) {
  .ts {
    --ts-side: 300px;
    grid-template-columns: minmax(0, 1fr) var(--ts-side);
    grid-template-rows: minmax(0, 1fr);
    grid-template-areas: "stage side";
  }
  .ts-head, .ts-desc { display: none; }
  .ts-btn { min-height: 44px; }
  .ts-btn-label { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  .ts * { transition: none !important; }
}