/* ==========================================================================
   Image tools - shared styles for the upload / preview / controls layout
   Requires /assets/css/modern-tool-cards.css (tokens + .cat-* accents).
   Wrap the tool in:  <div class="it cat-image"> ... </div>
   ========================================================================== */

.it-panel {
  background: var(--tc-bg);
  border: 1px solid var(--tc-border);
  border-radius: 20px;
  box-shadow: var(--tc-shadow);
  overflow: hidden;
}

/* ---------- Drop zone ---------- */
.it-drop {
  position: relative;
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: .35rem;
  margin: clamp(1rem, 3vw, 1.5rem);
  padding: clamp(1.75rem, 5vw, 3.25rem) 1.5rem;
  text-align: center; cursor: pointer;
  border: 2px dashed rgba(var(--accent-rgb), .4);
  border-radius: 16px;
  background:
    radial-gradient(600px 200px at 100% 0%, rgba(var(--accent-rgb), .10), transparent 60%),
    var(--tc-surface);
  transition: border-color .2s var(--tc-ease), background .2s var(--tc-ease), transform .2s var(--tc-ease);
}
.it-drop:hover, .it-drop:focus-visible { border-color: var(--accent); outline: 0; }
.it-drop:focus-visible { box-shadow: 0 0 0 4px rgba(var(--accent-rgb), .2); }
.it-drop.is-over { border-style: solid; border-color: var(--accent); background: rgba(var(--accent-rgb), .10); transform: scale(1.01); }

.it-drop__icon {
  display: grid; place-items: center; width: 64px; height: 64px; margin-bottom: .5rem;
  border-radius: 18px; font-size: 2rem; color: #fff;
  background: linear-gradient(135deg, var(--accent), rgba(var(--accent-rgb), .65));
  box-shadow: 0 10px 22px -10px rgba(var(--accent-rgb), .8);
}
.it-drop__title { font-size: 1.15rem; font-weight: 700; color: var(--tc-text); }
.it-drop__sub { font-size: .92rem; color: var(--tc-muted); }
.it-drop__sub u { color: var(--accent); text-decoration-thickness: 2px; text-underline-offset: 3px; font-weight: 600; }
.it-drop__hint { font-size: .78rem; color: var(--tc-muted); opacity: .85; }

/* compact bar once an image is loaded */
.it-drop.is-compact {
  flex-direction: row; justify-content: flex-start; gap: .75rem;
  margin: clamp(1rem, 3vw, 1.5rem) clamp(1rem, 3vw, 1.5rem) 0;
  padding: .75rem 1rem; text-align: left; border-radius: 14px;
}
.it-drop.is-compact .it-drop__icon { width: 38px; height: 38px; margin: 0; border-radius: 11px; font-size: 1.2rem; box-shadow: none; }
.it-drop.is-compact .it-drop__title { font-size: .95rem; }
.it-drop.is-compact .it-drop__title::after { content: " or browse"; font-weight: 500; color: var(--tc-muted); }
.it-drop.is-compact .it-drop__sub, .it-drop.is-compact .it-drop__hint { display: none; }

.it-error {
  margin: 0 clamp(1rem, 3vw, 1.5rem) clamp(1rem, 3vw, 1.5rem);
  padding: .75rem 1rem; border-radius: 12px; font-size: .9rem;
  color: var(--tc-text); background: rgba(239, 68, 68, .08); border: 1px solid rgba(239, 68, 68, .3);
}
.it-error[hidden] { display: none; }
.it-error i { margin-right: .4rem; color: #ef4444; }

/* ---------- Editor ---------- */
.it-editor {
  display: grid; grid-template-columns: minmax(0, 1fr) 320px; gap: 1.5rem;
  padding: clamp(1rem, 3vw, 1.5rem); align-items: start;
}
.it-editor[hidden] { display: none; }

.it-stage {
  position: relative; display: grid; place-items: center; min-height: 220px; padding: 1rem;
  border: 1px solid var(--tc-border); border-radius: 16px; overflow: auto;
  background: conic-gradient(var(--tc-border) 25%, var(--tc-surface) 0 50%, var(--tc-border) 0 75%, var(--tc-surface) 0) 0 0 / 20px 20px;
}
.it-canvas-wrap { position: relative; display: inline-block; max-width: 100%; line-height: 0; box-shadow: 0 8px 28px -12px rgba(15, 23, 42, .45); }
.it-canvas-wrap canvas { display: block; max-width: 100%; height: auto; transition: opacity .2s; }
.it-canvas-wrap .it-orig { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: fill; }
.it-canvas-wrap .it-orig[hidden] { display: none; }
.it-badge {
  position: absolute; top: .6rem; left: .6rem; z-index: 2; padding: .25rem .6rem; line-height: 1.2;
  font-size: .72rem; font-weight: 700; letter-spacing: .04em; text-transform: uppercase;
  color: #fff; background: rgba(15, 23, 42, .75); border-radius: 999px;
}
.it-badge[hidden] { display: none; }

.it-stage.is-busy canvas { opacity: .65; }
.it-stage.is-busy::after {
  content: "Processing\2026"; position: absolute; top: .75rem; right: .75rem;
  padding: .3rem .75rem; font-size: .75rem; font-weight: 600; color: var(--tc-text);
  background: var(--tc-bg); border: 1px solid var(--tc-border); border-radius: 999px;
  animation: it-fade .2s .25s both;
}
@keyframes it-fade { from { opacity: 0; } }

.it-meta { grid-column: 1; margin: -.75rem 0 0; font-size: .8rem; color: var(--tc-muted); word-break: break-all; }
.it-meta i { margin-right: .3rem; }

/* ---------- Controls ---------- */
.it-controls {
  grid-column: 2; grid-row: 1 / span 2;
  position: sticky; top: 90px; display: grid; gap: 1.25rem;
  padding: 1.25rem; background: var(--tc-surface); border: 1px solid var(--tc-border); border-radius: 16px;
}
.it-controls__title { margin: 0; font-size: .8rem; font-weight: 700; letter-spacing: .06em; text-transform: uppercase; color: var(--tc-muted); }

.it-field label { display: flex; justify-content: space-between; align-items: baseline; margin-bottom: .65rem; font-size: .9rem; font-weight: 600; color: var(--tc-text); }
.it-field output {
  min-width: 2.6rem; padding: .15rem .6rem; text-align: center;
  font-family: ui-monospace, monospace; font-weight: 700; color: var(--accent);
  background: rgba(var(--accent-rgb), .10); border-radius: 8px;
}
.it-range {
  -webkit-appearance: none; appearance: none; width: 100%; height: 8px; margin: .4rem 0; border-radius: 999px; outline: 0; cursor: pointer;
  background: linear-gradient(to right, var(--accent) 0, var(--accent) var(--pct, 0%), var(--tc-border) var(--pct, 0%), var(--tc-border) 100%);
}
.it-range::-webkit-slider-thumb {
  -webkit-appearance: none; appearance: none; width: 22px; height: 22px; border-radius: 50%;
  background: #fff; border: 3px solid var(--accent); box-shadow: 0 2px 6px rgba(15, 23, 42, .3);
  transition: transform .15s var(--tc-ease);
}
.it-range::-moz-range-thumb { width: 16px; height: 16px; border-radius: 50%; background: #fff; border: 3px solid var(--accent); box-shadow: 0 2px 6px rgba(15, 23, 42, .3); }
.it-range::-moz-range-track { background: transparent; }
.it-range:hover::-webkit-slider-thumb { transform: scale(1.1); }
.it-range:focus-visible::-webkit-slider-thumb { box-shadow: 0 0 0 5px rgba(var(--accent-rgb), .28); }
.it-range:focus-visible::-moz-range-thumb { box-shadow: 0 0 0 5px rgba(var(--accent-rgb), .28); }
.it-scale { display: flex; justify-content: space-between; font-size: .72rem; color: var(--tc-muted); }

.it-actions { display: grid; gap: .6rem; }
.it-actions__row { display: grid; grid-template-columns: 1fr 1fr; gap: .6rem; }
.it-btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .45rem;
  padding: .7rem 1rem; font-size: .92rem; font-weight: 600; line-height: 1;
  color: var(--tc-text); background: var(--tc-bg); border: 1px solid var(--tc-border); border-radius: 12px;
  cursor: pointer; user-select: none; touch-action: manipulation;
  transition: transform .2s var(--tc-ease), border-color .2s var(--tc-ease), color .2s var(--tc-ease), filter .2s var(--tc-ease);
}
.it-btn:hover { transform: translateY(-1px); border-color: var(--accent); color: var(--accent); }
.it-btn:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.it-btn.is-active { border-color: var(--accent); color: var(--accent); background: rgba(var(--accent-rgb), .10); }
.it-btn--primary { padding: .85rem 1rem; color: #fff; background: var(--accent); border-color: var(--accent); box-shadow: 0 8px 18px -8px rgba(var(--accent-rgb), .7); }
.it-btn--primary:hover { color: #fff; filter: brightness(1.08); }
.it-note { margin: 0; font-size: .78rem; line-height: 1.5; color: var(--tc-muted); }
.it-note i { margin-right: .3rem; color: #16a34a; }

/* ---------- Small screens ---------- */
@media (max-width: 900px) {
  .it-editor { grid-template-columns: 1fr; }
  .it-controls { position: static; grid-column: auto; grid-row: auto; }
  .it-stage, .it-meta { grid-column: auto; }
}
@media (prefers-reduced-motion: reduce) {
  .it *, .it-stage.is-busy::after { transition: none !important; animation: none !important; }
}