/* ============================================================================
   FileSeb — Workspace Pro
   A premium visual + interaction layer over the tool workspace and the hero
   quick-drop. Loaded after style.css, so it only overrides presentation —
   no tool logic lives here. Uses the site's existing CSS variables, so it
   themes correctly in both light and dark mode.
   ========================================================================== */

/* ── Shell ───────────────────────────────────────────────────────────────── */
.workspace {
  position: relative;
  max-width: 960px;
  border-radius: 22px;
  box-shadow:
    0 40px 90px -30px rgba(15, 23, 42, .55),
    0 18px 40px -24px rgba(15, 23, 42, .35),
    0 0 0 1px var(--border-soft),
    0 0 0 6px color-mix(in srgb, var(--primary) 7%, transparent);
}
.workspace-head {
  padding: 18px 22px;
  gap: 12px;
  background:
    radial-gradient(120% 220% at 0% 0%, color-mix(in srgb, var(--primary) 14%, transparent), transparent 60%),
    radial-gradient(120% 220% at 100% 0%, color-mix(in srgb, var(--accent) 12%, transparent), transparent 55%),
    linear-gradient(180deg, var(--bg-soft), var(--surface) 92%);
  position: relative;
}
.workspace-head::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: -1px; height: 1px;
  background: linear-gradient(90deg, transparent, color-mix(in srgb, var(--primary) 45%, transparent), transparent);
}
.workspace-head .tool-icon { box-shadow: 0 8px 22px -8px color-mix(in srgb, var(--primary) 70%, transparent); }
.workspace-head h3 { font-size: 17px; letter-spacing: -.015em; }
.workspace-body { padding: 22px 22px 24px; }

/* ── Upload dropzone ─────────────────────────────────────────────────────── */
.ws-drop {
  position: relative;
  border: 2px dashed transparent;
  border-radius: 18px;
  padding: 38px 22px 30px;
  text-align: center;
  background:
    linear-gradient(var(--surface), var(--surface)) padding-box,
    linear-gradient(125deg, color-mix(in srgb, var(--primary) 55%, transparent), color-mix(in srgb, var(--accent) 45%, transparent)) border-box;
  transition: transform .22s cubic-bezier(.22,1,.36,1), box-shadow .25s ease, background .25s ease;
  overflow: hidden;
}
.ws-drop::before {
  content: "";
  position: absolute;
  inset: -40% -10% auto;
  height: 70%;
  background: radial-gradient(60% 100% at 50% 0%, color-mix(in srgb, var(--primary) 12%, transparent), transparent 70%);
  opacity: 0;
  transition: opacity .3s ease;
  pointer-events: none;
}
.ws-drop:hover { transform: translateY(-2px); box-shadow: 0 18px 40px -26px color-mix(in srgb, var(--primary) 90%, transparent); }
.ws-drop:hover::before { opacity: 1; }
.ws-drop.drag-over,
.ws-drop.dragging {
  transform: translateY(-2px) scale(1.006);
  background:
    linear-gradient(color-mix(in srgb, var(--primary) 7%, var(--surface)), color-mix(in srgb, var(--primary) 7%, var(--surface))) padding-box,
    linear-gradient(125deg, var(--primary), var(--accent)) border-box;
  box-shadow: 0 22px 50px -22px color-mix(in srgb, var(--primary) 80%, transparent);
}
.ws-drop.drag-over::before, .ws-drop.dragging::before { opacity: 1; }
.ws-drop > svg {
  width: 30px; height: 30px;
  padding: 14px;
  box-sizing: content-box;
  border-radius: 18px;
  background: linear-gradient(150deg, color-mix(in srgb, var(--primary) 16%, transparent), color-mix(in srgb, var(--accent) 16%, transparent));
  stroke: var(--primary);
  margin: 0 auto 12px;
  transition: transform .25s cubic-bezier(.22,1,.36,1);
}
.ws-drop.drag-over > svg, .ws-drop.dragging > svg { transform: translateY(3px) scale(1.06); }
.ws-drop strong { font-size: 15px; letter-spacing: -.01em; }
.ws-drop span { font-size: 12.5px; }
.ws-drop input[type=file] { border-radius: 18px; }
.ws-drop:focus-within { box-shadow: 0 0 0 4px var(--primary-tint); }
.ws-drop.has-files { padding: 18px 18px 16px; }
.ws-drop.has-files > svg { width: 20px; height: 20px; padding: 9px; margin-bottom: 8px; border-radius: 13px; }
.ws-drop.has-files strong { font-size: 13.5px; }
.ws-drop.has-files .ws-drop-meta { margin-top: 8px; }

/* injected: accepted-format + helper chips under the dropzone text */
.ws-drop-meta {
  display: flex; flex-wrap: wrap; align-items: center; justify-content: center;
  gap: 6px; margin-top: 12px;
}
.ws-chip {
  display: inline-flex; align-items: center; gap: 5px;
  font-size: 10.5px; font-weight: 700; letter-spacing: .02em;
  padding: 4px 9px; border-radius: 999px;
  background: var(--bg); border: 1px solid var(--border-soft);
  color: var(--muted); white-space: nowrap;
}
.ws-chip svg { width: 11px; height: 11px; stroke: currentColor; }
.ws-chip-accept { color: var(--primary); border-color: color-mix(in srgb, var(--primary) 35%, transparent); background: var(--primary-tint); }
.ws-chip kbd {
  font-family: var(--font-mono); font-size: 9.5px; font-weight: 700;
  padding: 1px 5px; border-radius: 5px; background: var(--surface);
  border: 1px solid var(--border); box-shadow: 0 1px 0 var(--border);
}

/* ── File cards ──────────────────────────────────────────────────────────── */
.ws-file-list { gap: 10px; margin-top: 16px; }
.ws-file {
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr) auto auto;
  align-items: center;
  gap: 12px;
  padding: 10px 12px;
  border-radius: 13px;
  background: var(--bg);
  border: 1px solid var(--border-soft);
  box-shadow: 0 6px 16px -14px rgba(15, 23, 42, .4);
  transition: transform .16s ease, border-color .16s ease, box-shadow .16s ease;
  animation: wsFileIn .28s cubic-bezier(.22,1,.36,1);
}
@keyframes wsFileIn { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: none; } }
.ws-file:hover { transform: translateY(-1px); border-color: var(--border); box-shadow: 0 12px 26px -18px rgba(15, 23, 42, .5); }
.ws-file .ext {
  grid-column: 1; grid-row: 1;
  width: 44px; height: 44px; border-radius: 11px;
  display: flex; align-items: center; justify-content: center;
  font-size: 10px; padding: 0;
  background: linear-gradient(150deg, var(--primary), color-mix(in srgb, var(--accent) 80%, var(--primary)));
  box-shadow: 0 6px 14px -8px color-mix(in srgb, var(--primary) 90%, transparent);
}
.ws-file .ws-file-thumb {
  grid-column: 1; grid-row: 1;
  width: 44px; height: 44px; border-radius: 11px;
  object-fit: cover; background: var(--bg-soft);
  box-shadow: 0 6px 14px -8px rgba(15, 23, 42, .5);
}
.ws-file .nm {
  grid-column: 2; min-width: 0;
  display: flex; flex-direction: column; gap: 3px;
  font-weight: 600; font-size: 13px;
}
.ws-file .nm > .nm-text { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.ws-file .sz { grid-column: 3; font-size: 11.5px; font-variant-numeric: tabular-nums; }
.ws-file .ws-file-meta {
  font-size: 10.5px; color: var(--muted-soft); font-weight: 600;
  display: flex; gap: 8px; align-items: center; flex-wrap: wrap;
}
.ws-file .ws-file-meta .ws-ok { color: var(--success); }
.ws-file .ws-file-meta .ws-warn { color: var(--warn); }
.ws-file button {
  width: 28px; height: 28px; border-radius: 9px;
  display: flex; align-items: center; justify-content: center;
  font-size: 16px; line-height: 1;
  background: var(--surface); border: 1px solid var(--border-soft);
  color: var(--muted-soft);
  transition: background .15s ease, color .15s ease, transform .12s ease, border-color .15s ease;
}
.ws-file button:hover { background: color-mix(in srgb, var(--danger) 12%, var(--surface)); color: var(--danger); border-color: color-mix(in srgb, var(--danger) 40%, transparent); transform: scale(1.06); }
.ws-file-list .ws-file-summary {
  display: flex; align-items: center; justify-content: space-between;
  font-size: 11.5px; color: var(--muted-soft); font-weight: 600;
  padding: 2px 4px 0;
}

/* ── Stepper ─────────────────────────────────────────────────────────────── */
.ws-stepper {
  gap: 8px;
  padding: 10px 14px;
  border-radius: 14px;
  background: linear-gradient(180deg, var(--bg-soft), var(--bg));
  border: 1px solid var(--border-soft);
  margin: 2px 0 18px;
}
.ws-step-dot {
  width: 22px; height: 22px;
  background: var(--surface);
  transition: background .25s ease, border-color .25s ease, transform .25s ease, box-shadow .25s ease;
}
.ws-step.active .ws-step-dot { transform: scale(1.06); }
.ws-step-label { font-size: 11.5px; letter-spacing: .01em; }
.ws-step-line {
  height: 3px; border-radius: 99px;
  background: var(--border);
  overflow: hidden;
  position: relative;
}
.ws-step.complete + .ws-step-line::after,
.ws-step.active + .ws-step-line::after {
  content: "";
  position: absolute; inset: 0;
  transform-origin: left center;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  animation: wsStepFill .5s cubic-bezier(.22,1,.36,1) forwards;
}
@keyframes wsStepFill { from { transform: scaleX(0); } to { transform: scaleX(1); } }
.ws-step.active .ws-step-dot::after {
  content: "";
  position: absolute; inset: -5px;
  border-radius: 50%;
  border: 2px solid color-mix(in srgb, var(--primary) 45%, transparent);
  animation: wsPulse 1.6s ease-out infinite;
}
.ws-step-dot { position: relative; }
@keyframes wsPulse { 0% { opacity: .9; transform: scale(.85); } 100% { opacity: 0; transform: scale(1.35); } }

/* ── Conversion / options panel ─────────────────────────────────────────── */
.ws-options { gap: 14px; margin-top: 18px; }
.ws-row {
  gap: 14px;
  padding: 12px 14px;
  border-radius: 13px;
  background: var(--bg);
  border: 1px solid var(--border-soft);
  transition: border-color .15s ease, box-shadow .15s ease;
}
.ws-row:hover { border-color: var(--border); box-shadow: 0 10px 24px -20px rgba(15, 23, 42, .6); }
.ws-row label { font-size: 12px; font-weight: 700; color: var(--ink); letter-spacing: -.005em; }
.ws-row input[type=range] {
  -webkit-appearance: none; appearance: none;
  height: 6px; border-radius: 99px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  box-shadow: inset 0 0 0 1px var(--border-soft);
}
.ws-row input[type=range]::-webkit-slider-thumb {
  -webkit-appearance: none; appearance: none;
  width: 18px; height: 18px; border-radius: 50%;
  background: var(--surface); border: 2px solid var(--primary);
  box-shadow: 0 4px 10px -3px rgba(15, 23, 42, .45);
  cursor: pointer; transition: transform .12s ease;
}
.ws-row input[type=range]::-webkit-slider-thumb:hover { transform: scale(1.12); }
.ws-row input[type=range]::-moz-range-thumb {
  width: 18px; height: 18px; border-radius: 50%;
  background: var(--surface); border: 2px solid var(--primary);
  box-shadow: 0 4px 10px -3px rgba(15, 23, 42, .45); cursor: pointer;
}
.ws-row input[type=number], .ws-row input[type=text], .ws-row select, .ws-textarea {
  border-radius: 11px; transition: border-color .15s ease, box-shadow .15s ease, background .15s ease;
}
.ws-row-stack { padding: 12px 14px; border-radius: 13px; background: var(--bg); border: 1px solid var(--border-soft); }

/* checkbox → switch */
.ws-row input[type=checkbox] {
  -webkit-appearance: none; appearance: none;
  width: 40px; height: 23px; border-radius: 99px;
  background: var(--border); position: relative; cursor: pointer;
  transition: background .2s ease; flex-shrink: 0;
}
.ws-row input[type=checkbox]::after {
  content: ""; position: absolute; top: 2.5px; left: 2.5px;
  width: 18px; height: 18px; border-radius: 50%;
  background: var(--white); box-shadow: 0 1px 3px rgba(15, 23, 42, .35);
  transition: transform .2s cubic-bezier(.22,1,.36,1);
}
.ws-row input[type=checkbox]:checked { background: linear-gradient(90deg, var(--primary), var(--accent)); }
.ws-row input[type=checkbox]:checked::after { transform: translateX(17px); }

/* Convert button */
.ws-actions { margin-top: 20px; }
#wsRunBtn {
  padding: 14px 20px;
  font-size: 14.5px;
  letter-spacing: -.01em;
  border-radius: 13px;
  box-shadow: 0 16px 34px -18px color-mix(in srgb, var(--primary) 95%, transparent);
  transition: transform .14s ease, box-shadow .2s ease, filter .2s ease;
}
#wsRunBtn:hover:not(:disabled) { transform: translateY(-1px); box-shadow: 0 20px 40px -18px color-mix(in srgb, var(--primary) 95%, transparent); filter: saturate(1.06); }
#wsRunBtn:active:not(:disabled) { transform: translateY(0) scale(.995); }
#wsRunBtn.busy { position: relative; color: transparent; }
#wsRunBtn.busy::after {
  content: ""; position: absolute; inset: 0; margin: auto;
  width: 18px; height: 18px; border-radius: 50%;
  border: 2.5px solid rgba(255, 255, 255, .45);
  border-top-color: #fff;
  animation: wsSpin .7s linear infinite;
}
@keyframes wsSpin { to { transform: rotate(360deg); } }

/* ── Progress ───────────────────────────────────────────────────────────── */
.ws-progress {
  height: 10px; border-radius: 99px; margin-top: 18px;
  background: var(--bg-soft);
  box-shadow: inset 0 1px 3px rgba(15, 23, 42, .12);
  position: relative; overflow: hidden;
}
.ws-progress-bar {
  background: linear-gradient(90deg, var(--primary), var(--accent), var(--primary));
  background-size: 200% 100%;
  animation: wsBarFlow 1.6s linear infinite;
  box-shadow: 0 0 14px -1px color-mix(in srgb, var(--primary) 85%, transparent);
}
@keyframes wsBarFlow { to { background-position: -200% 0; } }
.ws-progress-wrap {
  display: flex; align-items: center; gap: 10px; margin-top: 12px;
}
.ws-progress-wrap .ws-progress { flex: 1; margin-top: 0; }
.ws-progress-pct {
  font-family: var(--font-mono); font-size: 11.5px; font-weight: 700;
  color: var(--primary); min-width: 42px; text-align: right;
  font-variant-numeric: tabular-nums;
}
.ws-status-row { margin-top: 10px; }
.ws-status { font-weight: 600; }
.ws-cancel-btn {
  border-radius: 10px; font-weight: 700;
  transition: background .15s ease, transform .12s ease, border-color .15s ease;
}
.ws-cancel-btn:hover { background: color-mix(in srgb, var(--danger) 10%, transparent); }

/* ── Preview stage ──────────────────────────────────────────────────────── */
.ws-stage-toolbar { gap: 8px; margin-bottom: 10px; }
.ws-compare-toggle, .ws-page-nav, .ws-zoom-controls, .ws-stage-extras {
  background: var(--surface);
  border: 1px solid var(--border-soft);
  border-radius: 11px;
  padding: 4px;
  box-shadow: 0 6px 16px -16px rgba(15, 23, 42, .7);
}
.ws-zoom-controls button, .ws-page-nav button {
  border-radius: 8px;
  transition: background .15s ease, color .15s ease, transform .12s ease, box-shadow .15s ease;
}
.ws-stage-extras { display: flex; align-items: center; gap: 4px; margin-left: auto; }
.ws-stage-extras button {
  height: 26px; padding: 0 9px; border: 0; border-radius: 8px;
  background: var(--bg); color: var(--muted); font-size: 11px; font-weight: 700;
  display: inline-flex; align-items: center; gap: 5px; cursor: pointer;
  transition: background .15s ease, color .15s ease, transform .12s ease;
}
.ws-stage-extras button:hover { color: var(--primary); transform: translateY(-1px); }
.ws-stage-extras button.active { background: var(--primary-tint); color: var(--primary); }
.ws-stage-extras button svg { width: 13px; height: 13px; }

.ws-stage-viewport {
  height: 340px;
  border-radius: 16px;
  border: 1px solid var(--border);
  box-shadow: inset 0 2px 12px rgba(15, 23, 42, .12), 0 20px 40px -30px rgba(15, 23, 42, .6);
  background:
    linear-gradient(45deg, color-mix(in srgb, var(--border) 45%, transparent) 25%, transparent 25%) 0 0/18px 18px,
    linear-gradient(-45deg, color-mix(in srgb, var(--border) 45%, transparent) 25%, transparent 25%) 0 0/18px 18px,
    linear-gradient(45deg, transparent 75%, color-mix(in srgb, var(--border) 45%, transparent) 75%) 0 0/18px 18px,
    linear-gradient(-45deg, transparent 75%, color-mix(in srgb, var(--border) 45%, transparent) 75%) 0 0/18px 18px,
    var(--white);
}
.ws-stage-canvas { transition: transform .16s cubic-bezier(.22,1,.36,1); }
.ws-stage-img { border-radius: 4px; box-shadow: 0 18px 40px -24px rgba(15, 23, 42, .55); }
.ws-stage-after-wrap .ws-stage-img { box-shadow: none; }

/* Before / after corner labels (mode driven, pure CSS) */
.ws-stage-viewport::before,
.ws-stage-viewport::after {
  position: absolute; z-index: 6; top: 10px;
  font-family: var(--font-mono); font-size: 9.5px; font-weight: 700;
  letter-spacing: .08em; text-transform: uppercase;
  padding: 4px 9px; border-radius: 999px;
  background: rgba(15, 23, 42, .66); color: #fff;
  backdrop-filter: blur(4px);
  pointer-events: none;
  opacity: 0; transition: opacity .2s ease;
}
.ws-stage-viewport::before { content: "Original"; left: 10px; }
.ws-stage-viewport::after { content: "Preview"; right: 10px; }
.ws-stage-viewport:has(.ws-stage-canvas.mode-split)::before,
.ws-stage-viewport:has(.ws-stage-canvas.mode-split)::after { opacity: 1; }
.ws-stage-viewport:has(.ws-stage-canvas.mode-before)::before { opacity: 1; }
.ws-stage-viewport:has(.ws-stage-canvas.mode-after)::after { opacity: 1; }
.ws-stage-viewport:has(.ws-stage-badge:not([style*="display: none"]))::before,
.ws-stage-viewport:has(.ws-text-preview:not(:empty))::before,
.ws-stage-viewport:has(.ws-text-preview:not(:empty))::after { opacity: 0; }

/* fullscreen stage */
.ws-stage:fullscreen {
  z-index: 9999;
  background: var(--bg);
  padding: 18px; margin: 0;
  display: flex; flex-direction: column; gap: 10px;
  width: 100%; height: 100%;
}
.ws-stage:fullscreen .ws-stage-viewport { flex: 1; height: auto; }
.ws-stage:fullscreen .ws-stage-toolbar { margin-bottom: 0; }

/* ── Info cards ─────────────────────────────────────────────────────────── */
.ws-info-grid { gap: 14px; }
.ws-info-card {
  border-radius: 15px;
  padding: 16px 16px 15px;
  background: linear-gradient(180deg, var(--surface), var(--bg));
  border: 1px solid var(--border-soft);
  box-shadow: 0 14px 30px -26px rgba(15, 23, 42, .7);
}
.ws-info-card:hover { border-color: var(--border); box-shadow: 0 20px 40px -28px rgba(15, 23, 42, .8); }
.ws-info-card h4 { font-size: 10.5px; letter-spacing: .08em; color: var(--muted-soft); }
#wsFileDetails { display: grid; grid-template-columns: auto 1fr; gap: 7px 12px; margin: 0; }
#wsFileDetails dt { color: var(--muted-soft); font-size: 11px; font-weight: 700; letter-spacing: .01em; }
#wsFileDetails dd { margin: 0; font-size: 12px; color: var(--ink); font-weight: 600; word-break: break-all; }
.ws-analysis-row { font-size: 12px; }
.ws-a-dot { box-shadow: 0 0 0 3px color-mix(in srgb, currentColor 15%, transparent); }

/* ── Result + error ─────────────────────────────────────────────────────── */
.ws-result { border-radius: 16px; padding: 20px 20px 18px; }
.ws-error { border-radius: 13px; font-weight: 500; }

/* ── Toast polish ───────────────────────────────────────────────────────── */
.toast { border-radius: 12px; }

/* ── Hero quick-drop ────────────────────────────────────────────────────── */
.quick-drop {
  border-radius: 20px;
  border-width: 2px;
  background:
    radial-gradient(120% 200% at 0% 0%, color-mix(in srgb, var(--primary) 8%, transparent), transparent 55%),
    var(--surface);
  transition: transform .2s cubic-bezier(.22,1,.36,1), box-shadow .25s ease, border-color .2s ease;
}
.quick-drop:hover { transform: translateY(-3px); box-shadow: 0 26px 50px -30px rgba(15, 23, 42, .6); }
.quick-drop.drag-over {
  border-color: var(--primary);
  background:
    radial-gradient(120% 200% at 0% 0%, color-mix(in srgb, var(--primary) 14%, transparent), transparent 55%),
    var(--surface);
  box-shadow: 0 26px 55px -26px color-mix(in srgb, var(--primary) 85%, transparent);
}
.quick-drop-icon { box-shadow: 0 10px 24px -12px rgba(15, 23, 42, .8); }
.quick-drop-formats .tool-icon { box-shadow: 0 6px 14px -8px rgba(15, 23, 42, .6); }

/* ── Shortcuts sheet ────────────────────────────────────────────────────── */
.ws-shortcuts {
  position: absolute; z-index: 20; right: 16px; bottom: 16px;
  width: min(320px, calc(100% - 32px));
  background: var(--surface); border: 1px solid var(--border);
  border-radius: 15px; padding: 14px 16px;
  box-shadow: 0 30px 60px -24px rgba(15, 23, 42, .65);
  animation: wsFileIn .22s cubic-bezier(.22,1,.36,1);
}
.ws-shortcuts h5 { font-size: 11px; text-transform: uppercase; letter-spacing: .09em; color: var(--muted-soft); margin-bottom: 10px; }
.ws-shortcuts div { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 5px 0; font-size: 12px; color: var(--ink); }
.ws-shortcuts kbd {
  font-family: var(--font-mono); font-size: 10px; font-weight: 700;
  padding: 2px 7px; border-radius: 6px; background: var(--bg);
  border: 1px solid var(--border); box-shadow: 0 1px 0 var(--border);
}

/* ── Responsive ─────────────────────────────────────────────────────────── */
@media (max-width: 720px) {
  .workspace-body { padding: 16px; }
  .workspace-head { padding: 14px 16px; }
  .ws-drop { padding: 28px 16px 22px; }
  .ws-stage-viewport { height: 260px; }
  .ws-stage-extras { margin-left: 0; width: 100%; justify-content: flex-start; }
  .ws-stage-toolbar { gap: 6px; }
}
@media (max-width: 640px) {
  .ws-stage-viewport { height: 220px; }
}
@media (max-width: 420px) {
  .ws-step-label { font-size: 10px; }
  .ws-file .sz { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  .ws-progress-bar, .ws-step.active .ws-step-dot::after, #wsRunBtn.busy::after { animation: none; }
  .ws-file, .ws-drop, .quick-drop, .ws-stage-canvas { transition: none; }
}

@media print { .ws-shortcuts, .ws-stage-extras { display: none !important; } }