/* =====================================================================
   WATERMARKER — app-only styles
   ---------------------------------------------------------------------
   Everything in this file is scoped under .watermarker-app. This site's
   global stylesheet (/css/style.css) is loaded AFTER this one on the
   page (see index.html), so any bare-element rule here (body, h1, p...)
   would lose to the global sheet's — and worse, would fight it. Scope
   every selector under .watermarker-app; never restyle a bare tag.

   Colors, radii and shadows below are aliases onto the site-wide tokens
   in /css/tokens.css (linked before this file in index.html), re-declared
   as --wm- custom properties so this file never collides with another
   app's tokens (Pinpress/Tile Maker define their own --color-* set with
   different values under the same names).
   ===================================================================== */

.watermarker-app {
  --wm-ink: var(--color-primary);
  --wm-ink-dark: var(--color-primary-dark);
  --wm-body: var(--color-ink);
  --wm-muted: var(--color-text-muted);
  --wm-surface: var(--color-surface);
  --wm-shadow: var(--shadow-sticker) var(--color-shadow);
  --wm-shadow-lift: var(--shadow-sticker) var(--color-accent-pink);
  --wm-hairline: var(--color-shadow);
  --wm-radius: var(--radius-lg);
  --wm-radius-btn: var(--radius-sm);
  --wm-radius-pill: var(--radius-pill);
  --wm-warn: #b5740e;
  --wm-warn-bg: #fbedd7;
  --wm-error: #9a2e2e;
  --wm-error-bg: #fbe0e0;
  --wm-error-border: #f0b8b8;
}

.watermarker-app .wm-h1 {
  font-family: "DynaPuff", "Comic Neue", sans-serif;
  color: var(--wm-ink);
  margin-bottom: 20px;
  font-size: 38px;
}

.watermarker-app .wm-h2 {
  font-family: "Comic Neue", sans-serif;
  font-weight: 700;
  color: var(--wm-ink);
  font-size: 20px;
  margin-bottom: 12px;
}

.watermarker-app .wm-hint {
  font-family: "Comic Neue", sans-serif;
  color: var(--wm-muted);
  font-size: 14px;
  margin-top: 10px;
  line-height: 1.5;
}

.watermarker-app .wm-error {
  font-family: "Comic Neue", sans-serif;
  color: var(--wm-error);
  background: var(--wm-error-bg);
  border: 1.5px solid var(--wm-error-border);
  border-radius: var(--wm-radius-btn);
  padding: 10px 14px;
  margin-top: 12px;
}

.watermarker-app .wm-error[hidden] {
  display: none;
}

.watermarker-app .wm-lib-error-banner {
  font-weight: 700;
}

.watermarker-app .wm-error.wm-warning {
  color: var(--wm-warn);
  background: var(--wm-warn-bg);
  border-color: var(--wm-warn);
}

/* --- Panels --- */

.watermarker-app .wm-panel {
  background: var(--wm-surface);
  border: var(--border-width) solid var(--color-ink);
  border-radius: var(--wm-radius);
  box-shadow: var(--wm-shadow);
  padding: 24px;
  margin-bottom: 20px;
}

/* --- Upload --- */

.watermarker-app .wm-upload-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.watermarker-app .wm-dropzone {
  border: 2px dashed var(--wm-ink);
  border-radius: var(--wm-radius);
  padding: 28px 18px;
  text-align: center;
  transition: border-color 0.2s ease, background 0.2s ease;
  cursor: pointer;
  height: 100%;
}

.watermarker-app .wm-dropzone p {
  color: var(--wm-body);
  font-size: 16px;
  margin-bottom: 12px;
}

.watermarker-app .wm-dropzone.wm-drag-over {
  border-color: var(--wm-ink);
  background: rgba(138, 108, 189, 0.08);
}

.watermarker-app .wm-visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

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

.watermarker-app .wm-workspace {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr);
  gap: 24px;
  align-items: start;
}

.watermarker-app .wm-workspace[hidden] {
  display: none;
}

.watermarker-app .wm-preview-panel {
  position: sticky;
  top: 20px;
}

.watermarker-app .wm-controls-column {
  display: flex;
  flex-direction: column;
}

/* --- Preview / checkerboard stage --- */

.watermarker-app .wm-preview-frame {
  position: relative;
  border-radius: var(--wm-radius);
  overflow: hidden;
  min-height: 320px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: #fff;
  background-image:
    linear-gradient(45deg, #eee 25%, transparent 25%),
    linear-gradient(-45deg, #eee 25%, transparent 25%),
    linear-gradient(45deg, transparent 75%, #eee 75%),
    linear-gradient(-45deg, transparent 75%, #eee 75%);
  background-size: 20px 20px;
  background-position: 0 0, 0 10px, 10px -10px, -10px 0px;
  border: 1.5px solid var(--wm-hairline);
}

.watermarker-app .wm-stage-container {
  line-height: 0;
  touch-action: none;
}

.watermarker-app .wm-stage-container canvas {
  max-width: 100%;
  height: auto !important;
}

.watermarker-app .wm-empty-message {
  padding: 20px;
  text-align: center;
  color: var(--wm-muted);
  font-family: "Comic Neue", sans-serif;
  font-size: 16px;
}

.watermarker-app .wm-preview-hint {
  text-align: center;
}

/* --- Filmstrip --- */

.watermarker-app .wm-filmstrip {
  display: flex;
  gap: 10px;
  overflow-x: auto;
  padding-bottom: 6px;
}

.watermarker-app .wm-filmstrip-item {
  position: relative;
  flex: 0 0 auto;
  width: 64px;
  cursor: pointer;
  border: 2px solid transparent;
  border-radius: var(--wm-radius-btn);
  padding: 2px;
  background: none;
}

.watermarker-app .wm-filmstrip-item.wm-active {
  border-color: var(--wm-ink);
}

.watermarker-app .wm-filmstrip-thumb-wrap {
  position: relative;
  width: 60px;
  height: 60px;
  border-radius: calc(var(--wm-radius-btn) - 4px);
  overflow: hidden;
  background-color: #fff;
  background-image:
    linear-gradient(45deg, #eee 25%, transparent 25%),
    linear-gradient(-45deg, #eee 25%, transparent 25%),
    linear-gradient(45deg, transparent 75%, #eee 75%),
    linear-gradient(-45deg, transparent 75%, #eee 75%);
  background-size: 10px 10px;
  background-position: 0 0, 0 5px, 5px -5px, -5px 0px;
  border: 1px solid var(--wm-hairline);
}

.watermarker-app .wm-filmstrip-thumb-wrap img,
.watermarker-app .wm-filmstrip-thumb-wrap canvas {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.watermarker-app .wm-filmstrip-badge {
  position: absolute;
  bottom: 2px;
  right: 2px;
  background: var(--wm-ink);
  color: #fff;
  font-family: "Comic Neue", sans-serif;
  font-size: 10px;
  font-weight: 700;
  line-height: 1;
  border-radius: var(--wm-radius-pill);
  padding: 2px 5px;
  min-width: 14px;
  text-align: center;
}

.watermarker-app .wm-filmstrip-badge[hidden] {
  display: none;
}

.watermarker-app .wm-filmstrip-label {
  display: block;
  font-family: "Comic Neue", sans-serif;
  font-size: 10px;
  color: var(--wm-muted);
  margin-top: 3px;
  text-align: center;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.watermarker-app .wm-filmstrip-remove {
  position: absolute;
  top: -6px;
  right: -6px;
  width: 18px;
  height: 18px;
  line-height: 16px;
  border-radius: 50%;
  background: var(--wm-ink-dark);
  color: #fff;
  border: 1.5px solid #fff;
  font-size: 12px;
  cursor: pointer;
  padding: 0;
}

.watermarker-app .wm-filmstrip-toggle {
  position: absolute;
  top: -6px;
  right: -6px;
  width: 18px;
  height: 18px;
  line-height: 15px;
  border-radius: 50%;
  background: #fff;
  color: var(--wm-ink-dark);
  border: 1.5px solid var(--wm-ink-dark);
  font-size: 11px;
  cursor: pointer;
  padding: 0;
}

.watermarker-app .wm-filmstrip-item.wm-excluded .wm-filmstrip-thumb-wrap {
  opacity: 0.35;
}

/* --- Watermark panel --- */

.watermarker-app .wm-watermark-row {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 8px;
}

.watermarker-app .wm-watermark-thumb-wrap {
  width: 56px;
  height: 56px;
  flex: 0 0 auto;
  border-radius: var(--wm-radius-btn);
  overflow: hidden;
  background-color: #fff;
  background-image:
    linear-gradient(45deg, #eee 25%, transparent 25%),
    linear-gradient(-45deg, #eee 25%, transparent 25%),
    linear-gradient(45deg, transparent 75%, #eee 75%),
    linear-gradient(-45deg, transparent 75%, #eee 75%);
  background-size: 10px 10px;
  background-position: 0 0, 0 5px, 5px -5px, -5px 0px;
  border: 1px solid var(--wm-hairline);
}

.watermarker-app .wm-watermark-thumb {
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: block;
}

.watermarker-app .wm-selected-controls[hidden] {
  display: none;
}

/* --- Form rows (shared with Weedline's convention) --- */

.watermarker-app .wm-slider-row,
.watermarker-app .wm-field-row,
.watermarker-app .wm-tile-row {
  margin-bottom: 18px;
}

.watermarker-app .wm-slider-row:last-child,
.watermarker-app .wm-field-row:last-child,
.watermarker-app .wm-tile-row:last-child {
  margin-bottom: 0;
}

.watermarker-app .wm-slider-row label,
.watermarker-app .wm-field-row label,
.watermarker-app .wm-tile-row label {
  display: block;
  font-family: "Comic Neue", sans-serif;
  font-weight: 700;
  color: var(--wm-body);
  font-size: 15px;
  margin-bottom: 8px;
}

.watermarker-app .wm-value {
  font-weight: 400;
  color: var(--wm-muted);
}

.watermarker-app input[type="range"] {
  width: 100%;
  accent-color: var(--wm-ink);
}

.watermarker-app input[type="range"]:disabled {
  opacity: 0.5;
}

.watermarker-app .wm-field-row {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.watermarker-app .wm-field-row label {
  margin-bottom: 0;
  flex: 0 0 auto;
}

.watermarker-app input[type="number"],
.watermarker-app input[type="text"],
.watermarker-app select {
  font-family: "Comic Neue", sans-serif;
  font-size: 15px;
  color: var(--wm-ink-dark);
  border: 1.5px solid var(--wm-hairline);
  border-radius: var(--wm-radius-btn);
  padding: 8px 10px;
  background: #fff;
}

.watermarker-app input[type="text"] {
  flex: 1 1 auto;
  min-width: 0;
}

/* --- Stamp panel --- */

.watermarker-app .wm-stamp-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 18px;
}

.watermarker-app .wm-preset-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 6px;
  max-width: 160px;
  margin-top: 8px;
  margin-bottom: 18px;
}

.watermarker-app .wm-preset-btn {
  font-size: 16px;
  line-height: 1;
  padding: 10px 0;
  border: 1.5px solid var(--wm-ink);
  background: transparent;
  color: var(--wm-ink);
  border-radius: var(--wm-radius-btn);
  cursor: pointer;
}

.watermarker-app .wm-preset-btn:hover:not(:disabled) {
  background: rgba(138, 108, 189, 0.15);
}

.watermarker-app .wm-tile-row {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.watermarker-app .wm-tile-row label {
  flex: 1 1 100%;
  margin-bottom: 8px;
}

.watermarker-app .wm-tile-row input[type="range"] {
  flex: 1 1 auto;
  width: auto;
}

/* --- Buttons --- */

.watermarker-app .wm-btn-primary {
  font-family: "Comic Neue", sans-serif;
  font-weight: 700;
  color: #fff;
  background: var(--wm-ink);
  border: 2px solid var(--color-ink);
  border-radius: var(--wm-radius-btn);
  padding: 10px 16px;
  cursor: pointer;
  transition: background 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
}

.watermarker-app .wm-btn-primary:hover:not(:disabled) {
  background: var(--wm-ink-dark);
  transform: translateY(-5px);
  box-shadow: var(--wm-shadow-lift);
}

.watermarker-app .wm-btn-secondary {
  font-family: "Comic Neue", sans-serif;
  font-weight: 700;
  color: var(--wm-ink);
  background: transparent;
  border: 1.5px solid var(--wm-ink);
  border-radius: var(--wm-radius-btn);
  padding: 10px 16px;
  cursor: pointer;
  transition: background 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
}

.watermarker-app .wm-btn-secondary:hover:not(:disabled) {
  background: rgba(138, 108, 189, 0.15);
  transform: translateY(-5px);
  box-shadow: var(--wm-shadow-lift);
}

.watermarker-app button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.watermarker-app .wm-export-status {
  margin-top: 12px;
}

/* --- Focus visibility --- */

.watermarker-app button:focus-visible,
.watermarker-app input:focus-visible,
.watermarker-app select:focus-visible,
.watermarker-app [tabindex]:focus-visible {
  outline: 3px solid var(--wm-ink);
  outline-offset: 2px;
}

/* --- Reduced motion --- */

@media (prefers-reduced-motion: reduce) {
  .watermarker-app * {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }
}

/* --- Breakpoint --- */

@media (max-width: 900px) {
  .watermarker-app .wm-workspace {
    grid-template-columns: 1fr;
  }

  .watermarker-app .wm-preview-panel {
    position: static;
  }

  .watermarker-app .wm-upload-grid {
    grid-template-columns: 1fr;
  }

  .watermarker-app .wm-stamp-actions button,
  .watermarker-app .wm-watermark-replace-btn {
    flex: 1 1 auto;
  }
}