/* =========================================================
   WorkReader design system (light, minimal)
   Tokens, base components and motion. Loaded after the
   legacy stylesheets; new markup uses the wr-* classes.
   ========================================================= */

:root {
  /* Color */
  --wr-bg: #f8fafc;
  --wr-surface: #ffffff;
  --wr-surface-2: #f1f5f9;
  --wr-surface-3: #e8edf3;
  --wr-border: #e2e8f0;
  --wr-border-strong: #cbd5e1;
  --wr-text: #0f172a;
  --wr-text-2: #475569;
  --wr-text-3: #94a3b8;
  --wr-brand: #4f46e5;
  --wr-brand-hover: #4338ca;
  --wr-brand-soft: #eef2ff;
  --wr-brand-ring: rgba(79, 70, 229, 0.16);
  --wr-success: #059669;
  --wr-success-soft: #ecfdf5;
  --wr-danger: #dc2626;
  --wr-danger-soft: #fef2f2;
  --wr-youtube: #ff0033;

  /* Shape */
  --wr-radius-sm: 10px;
  --wr-radius-md: 14px;
  --wr-radius-lg: 20px;
  --wr-shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.06), 0 1px 3px rgba(15, 23, 42, 0.04);
  --wr-shadow-md: 0 4px 12px -2px rgba(15, 23, 42, 0.08), 0 2px 4px -2px rgba(15, 23, 42, 0.04);
  --wr-shadow-lg: 0 18px 40px -16px rgba(15, 23, 42, 0.22);

  /* Type */
  --wr-font: "Inter", "Segoe UI", system-ui, -apple-system, sans-serif;

  /* Motion */
  --wr-ease: cubic-bezier(0.2, 0.8, 0.2, 1);
  --wr-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
  --wr-fast: 150ms;
  --wr-base: 250ms;
  --wr-slow: 500ms;
}

#landing-portal,
.donate-welcome-dialog {
  --cruip-font-sans: var(--wr-font);
}

/* ---------------------------------------------------------
   Buttons
   --------------------------------------------------------- */
.wr-btn {
  position: relative;
  overflow: hidden;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 44px;
  padding: 0 18px;
  border: 1px solid transparent;
  border-radius: var(--wr-radius-sm);
  font: inherit;
  font-size: 14.5px;
  font-weight: 650;
  line-height: 1;
  white-space: nowrap;
  text-decoration: none;
  cursor: pointer;
  user-select: none;
  transition:
    background var(--wr-fast) var(--wr-ease),
    border-color var(--wr-fast) var(--wr-ease),
    color var(--wr-fast) var(--wr-ease),
    box-shadow var(--wr-base) var(--wr-ease),
    transform var(--wr-fast) var(--wr-ease);
}

.wr-btn:hover {
  transform: translateY(-1px);
}

.wr-btn:active {
  transform: translateY(0) scale(0.97);
}

.wr-btn:focus-visible {
  outline: none;
  box-shadow: 0 0 0 4px var(--wr-brand-ring);
}

.wr-btn:disabled {
  opacity: 0.6;
  cursor: progress;
  transform: none;
}

.wr-btn--primary {
  background: var(--wr-brand);
  color: #ffffff;
  box-shadow: 0 6px 16px -6px rgba(79, 70, 229, 0.55);
}

.wr-btn--primary:hover {
  background: var(--wr-brand-hover);
  box-shadow: 0 10px 22px -8px rgba(79, 70, 229, 0.6);
}

.wr-btn--secondary {
  background: var(--wr-surface);
  border-color: var(--wr-border);
  color: var(--wr-text);
  box-shadow: var(--wr-shadow-sm);
}

.wr-btn--secondary:hover {
  border-color: var(--wr-border-strong);
}

.wr-btn--ghost {
  background: transparent;
  color: var(--wr-text-2);
}

.wr-btn--ghost:hover {
  background: var(--wr-surface-2);
  color: var(--wr-text);
}

.wr-btn .wr-btn-arrow {
  transition: transform var(--wr-base) var(--wr-spring);
}

.wr-btn:hover .wr-btn-arrow {
  transform: translateX(3px);
}

/* Ripple (js/wr-motion.js adds the span) */
.wr-ripple {
  position: absolute;
  border-radius: 50%;
  background: currentColor;
  opacity: 0.18;
  transform: scale(0);
  pointer-events: none;
  animation: wr-ripple 600ms var(--wr-ease) forwards;
}

@keyframes wr-ripple {
  to {
    transform: scale(1);
    opacity: 0;
  }
}

/* ---------------------------------------------------------
   Cards, fields, chips
   --------------------------------------------------------- */
.wr-card {
  display: flex;
  flex-direction: column;
  gap: 16px;
  min-width: 0;
  padding: 22px;
  background: var(--wr-surface);
  border: 1px solid var(--wr-border);
  border-radius: var(--wr-radius-lg);
  box-shadow: var(--wr-shadow-sm);
  transition: box-shadow var(--wr-base) var(--wr-ease), border-color var(--wr-base) var(--wr-ease), transform var(--wr-base) var(--wr-ease);
}

.wr-card:hover {
  box-shadow: var(--wr-shadow-md);
}

.wr-card-head {
  display: flex;
  align-items: center;
  gap: 12px;
}

.wr-card-title {
  margin: 0;
  font-size: 16px;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--wr-text);
}

.wr-card-sub {
  margin: 2px 0 0;
  font-size: 13px;
  color: var(--wr-text-2);
}

.wr-icon {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 12px;
  background: var(--wr-surface-2);
  color: var(--wr-text-2);
  transition: transform var(--wr-base) var(--wr-spring);
}

.wr-card:hover .wr-icon {
  transform: rotate(-6deg) scale(1.06);
}

.wr-icon--brand {
  background: var(--wr-brand-soft);
  color: var(--wr-brand);
}

.wr-icon--youtube {
  background: #fff1f2;
  color: var(--wr-youtube);
}

.wr-field {
  display: flex;
  gap: 8px;
  padding: 5px;
  background: var(--wr-surface-2);
  border: 1px solid var(--wr-border);
  border-radius: var(--wr-radius-md);
  transition: border-color var(--wr-fast) var(--wr-ease), box-shadow var(--wr-base) var(--wr-ease), background var(--wr-fast) var(--wr-ease);
}

.wr-field:focus-within {
  background: var(--wr-surface);
  border-color: var(--wr-brand);
  box-shadow: 0 0 0 4px var(--wr-brand-ring);
}

.wr-field.is-valid {
  border-color: var(--wr-success);
  box-shadow: 0 0 0 4px rgba(5, 150, 105, 0.14);
}

.wr-input {
  flex: 1;
  min-width: 0;
  height: 44px;
  padding: 0 10px;
  border: none;
  outline: none;
  background: transparent;
  font: inherit;
  font-size: 14.5px;
  color: var(--wr-text);
}

.wr-input::placeholder {
  color: var(--wr-text-3);
}

.wr-chips {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
}

.wr-chips-label {
  font-size: 12.5px;
  color: var(--wr-text-3);
}

.wr-chip {
  position: relative;
  overflow: hidden;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  height: 30px;
  padding: 0 12px;
  border: 1px solid var(--wr-border);
  border-radius: 999px;
  background: var(--wr-surface);
  font: inherit;
  font-size: 12.5px;
  font-weight: 550;
  color: var(--wr-text-2);
  cursor: pointer;
  transition: border-color var(--wr-fast) var(--wr-ease), color var(--wr-fast) var(--wr-ease), transform var(--wr-fast) var(--wr-ease), background var(--wr-fast) var(--wr-ease);
}

.wr-chip:hover {
  border-color: var(--wr-brand);
  color: var(--wr-brand);
  background: var(--wr-brand-soft);
  transform: translateY(-1px);
}

.wr-chip:active {
  transform: scale(0.96);
}

.wr-footnote {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 0;
  font-size: 12.5px;
  color: var(--wr-text-3);
}

.wr-footnote kbd {
  padding: 1px 6px;
  border: 1px solid var(--wr-border);
  border-bottom-width: 2px;
  border-radius: 6px;
  background: var(--wr-surface);
  font: inherit;
  font-size: 11.5px;
  font-weight: 600;
  color: var(--wr-text-2);
}

/* ---------------------------------------------------------
   Step section shell
   --------------------------------------------------------- */
.wr-step-head {
  text-align: center;
  margin-bottom: 26px;
}

.wr-kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 4px 12px 4px 4px;
  border-radius: 999px;
  background: var(--wr-brand-soft);
  color: var(--wr-brand);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.wr-kicker-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--wr-brand);
  color: #ffffff;
  font-size: 12px;
}

.wr-step-title {
  margin: 14px 0 8px;
  font-size: clamp(24px, 3vw, 32px);
  font-weight: 800;
  letter-spacing: -0.025em;
  color: var(--wr-text);
}

.wr-step-sub {
  max-width: 560px;
  margin: 0 auto;
  font-size: 15px;
  line-height: 1.6;
  color: var(--wr-text-2);
}

.wr-step-foot {
  display: flex;
  justify-content: center;
  margin-top: 22px;
}

/* ---------------------------------------------------------
   Segmented mode switch (sliding indicator)
   --------------------------------------------------------- */
.wr-seg {
  position: relative;
  display: grid;
  grid-template-columns: 1fr 1fr;
  max-width: 520px;
  margin: 0 auto 22px;
  padding: 4px;
  background: var(--wr-surface-2);
  border: 1px solid var(--wr-border);
  border-radius: var(--wr-radius-md);
}

.wr-seg-indicator {
  position: absolute;
  top: 4px;
  bottom: 4px;
  left: 4px;
  width: calc(50% - 4px);
  border-radius: var(--wr-radius-sm);
  background: var(--wr-surface);
  box-shadow: var(--wr-shadow-md);
  transition: transform 450ms var(--wr-spring);
}

.wr-seg:has(#btn-mode-youtube.active) .wr-seg-indicator {
  transform: translateX(100%);
}

.wr-seg-btn {
  position: relative;
  z-index: 1;
  overflow: hidden;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 48px;
  padding: 0 12px;
  border: none;
  border-radius: var(--wr-radius-sm);
  background: transparent;
  font: inherit;
  font-size: 14.5px;
  font-weight: 600;
  color: var(--wr-text-2);
  cursor: pointer;
  transition: color var(--wr-base) var(--wr-ease);
}

.wr-seg-btn:hover {
  color: var(--wr-text);
}

.wr-seg-btn.active {
  color: var(--wr-text);
}

.wr-seg-btn svg {
  transition: transform var(--wr-base) var(--wr-spring), color var(--wr-base) var(--wr-ease);
}

.wr-seg-btn.active svg {
  transform: scale(1.12);
}

#btn-mode-story.active svg {
  color: var(--wr-brand);
}

#btn-mode-youtube.active svg {
  color: var(--wr-youtube);
}

.wr-seg-count {
  padding: 2px 8px;
  border-radius: 999px;
  background: var(--wr-surface-3);
  font-size: 11.5px;
  font-weight: 600;
  color: var(--wr-text-2);
  transition: background var(--wr-base) var(--wr-ease), color var(--wr-base) var(--wr-ease);
}

.wr-seg-btn.active .wr-seg-count {
  background: var(--wr-brand-soft);
  color: var(--wr-brand);
}

/* ---------------------------------------------------------
   Step 1 panels
   --------------------------------------------------------- */
.wr-source-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.wr-panel .web-clipper-status {
  margin: 0;
  padding: 10px 12px;
  border: none;
  border-radius: var(--wr-radius-sm);
  font-size: 13px;
  animation: wr-fade-up var(--wr-base) var(--wr-ease);
}

/* Upload drop zone wraps the JS-rendered upload card content */
.wr-upload.duo-upload-quest {
  margin: 0;
  padding: 18px;
  border: 1.5px dashed var(--wr-border-strong);
  border-radius: var(--wr-radius-md);
  background: var(--wr-surface-2);
  box-shadow: none;
  transition: border-color var(--wr-fast) var(--wr-ease), background var(--wr-fast) var(--wr-ease), transform var(--wr-base) var(--wr-spring);
}

.wr-upload.duo-upload-quest:hover {
  border-color: var(--wr-brand);
  background: var(--wr-brand-soft);
}

.wr-upload.duo-upload-quest.is-dragover {
  border-color: var(--wr-brand);
  background: var(--wr-brand-soft);
  transform: scale(1.015);
}

.wr-upload .duo-upload-badge-tag {
  display: none;
}

.wr-upload .duo-upload-icon-box {
  border-radius: 12px;
  border-color: var(--wr-border);
  color: var(--wr-brand);
}

.wr-upload .portal-file-change-btn {
  border-radius: var(--wr-radius-sm);
  background: var(--wr-brand);
  box-shadow: 0 6px 16px -6px rgba(79, 70, 229, 0.55);
  transition: background var(--wr-fast) var(--wr-ease), transform var(--wr-fast) var(--wr-ease);
}

.wr-upload .portal-file-change-btn:hover {
  background: var(--wr-brand-hover);
  transform: translateY(-1px);
}

.wr-upload .portal-file-change-btn:active {
  transform: scale(0.97);
}

/* YouTube panel */
.wr-yt-preview {
  align-items: center;
  gap: 14px;
  padding: 10px;
  border: 1px solid #a7f3d0;
  border-radius: var(--wr-radius-md);
  background: var(--wr-success-soft);
  animation: wr-slide-in 380ms var(--wr-spring);
}

.wr-yt-preview-thumb {
  flex-shrink: 0;
  width: 128px;
  aspect-ratio: 16 / 9;
  border-radius: 10px;
  object-fit: cover;
  background: var(--wr-surface-3);
  box-shadow: var(--wr-shadow-sm);
}

.wr-yt-preview-thumb.is-playlist {
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--wr-text-2);
}

.wr-yt-preview-info {
  min-width: 0;
}

.wr-yt-preview-kicker {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  font-weight: 700;
  color: var(--wr-success);
}

.wr-yt-preview-title {
  margin-top: 2px;
  font-size: 14.5px;
  font-weight: 650;
  color: var(--wr-text);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.wr-yt-preview-sub {
  margin-top: 2px;
  font-size: 12.5px;
  color: var(--wr-text-2);
}

.wr-section-label {
  margin: 0 0 -6px;
  font-size: 12.5px;
  font-weight: 600;
  color: var(--wr-text-3);
}

.wr-yt-samples {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
}

.wr-yt-sample {
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 6px 6px 10px;
  border: 1px solid var(--wr-border);
  border-radius: var(--wr-radius-md);
  background: var(--wr-surface);
  font: inherit;
  text-align: left;
  cursor: pointer;
  transition: transform var(--wr-base) var(--wr-ease), box-shadow var(--wr-base) var(--wr-ease), border-color var(--wr-fast) var(--wr-ease);
}

.wr-yt-sample:hover {
  transform: translateY(-3px);
  border-color: var(--wr-border-strong);
  box-shadow: var(--wr-shadow-lg);
}

.wr-yt-sample:active {
  transform: translateY(-1px) scale(0.98);
}

.wr-yt-sample-thumb {
  position: relative;
  overflow: hidden;
  border-radius: 10px;
  aspect-ratio: 16 / 9;
  background: var(--wr-surface-3);
}

.wr-yt-sample-thumb img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--wr-slow) var(--wr-ease);
}

.wr-yt-sample:hover .wr-yt-sample-thumb img {
  transform: scale(1.06);
}

.wr-yt-sample-play {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(15, 23, 42, 0.28);
  color: #ffffff;
  opacity: 0;
  transition: opacity var(--wr-base) var(--wr-ease);
}

.wr-yt-sample-play svg {
  transform: scale(0.7);
  transition: transform var(--wr-base) var(--wr-spring);
}

.wr-yt-sample:hover .wr-yt-sample-play {
  opacity: 1;
}

.wr-yt-sample:hover .wr-yt-sample-play svg {
  transform: scale(1);
}

.wr-yt-sample-title {
  padding: 0 4px;
  font-size: 13px;
  font-weight: 650;
  color: var(--wr-text);
}

.wr-yt-sample-meta {
  margin-top: -6px;
  padding: 0 4px;
  font-size: 12px;
  color: var(--wr-text-3);
}

/* ---------------------------------------------------------
   Quick start (hero) aligned to the tokens
   --------------------------------------------------------- */
.wr-quickstart {
  border-color: var(--wr-border);
  box-shadow: var(--wr-shadow-lg);
  animation: wr-fade-up 600ms var(--wr-ease) both;
}

.wr-continue-card {
  animation: wr-slide-in 420ms var(--wr-spring);
}

.wr-continue-kicker {
  color: var(--wr-brand);
}

.wr-continue-icon,
.wr-continue-bar span {
  background: var(--wr-brand);
}

.wr-continue-bar span {
  transition: width 900ms var(--wr-ease);
}

.wr-continue-btn {
  position: relative;
  overflow: hidden;
  background: var(--wr-brand);
  box-shadow: 0 6px 16px -6px rgba(79, 70, 229, 0.55);
}

.wr-continue-btn:hover {
  background: var(--wr-brand-hover);
}

.wr-continue-btn:active,
.wr-omnibox-go:active,
.wr-omnibox-file:active {
  transform: scale(0.97);
}

.wr-omnibox-go,
.wr-omnibox-file {
  position: relative;
  overflow: hidden;
  transition: background var(--wr-fast) var(--wr-ease), border-color var(--wr-fast) var(--wr-ease), transform var(--wr-fast) var(--wr-ease);
}

.wr-omnibox:focus-within {
  border-color: var(--wr-brand);
  box-shadow: 0 0 0 4px var(--wr-brand-ring);
}

.wr-theme-chip:hover {
  border-color: var(--wr-brand);
  color: var(--wr-brand);
}

/* ---------------------------------------------------------
   Motion: scroll reveal, staggered grids, keyframes.
   Hidden-before-reveal states only apply once js/wr-motion.js
   has added .wr-motion, so content never stays invisible.
   --------------------------------------------------------- */
.wr-motion [data-reveal] {
  transition: opacity 700ms var(--wr-ease), transform 700ms var(--wr-ease);
}

.wr-motion [data-reveal]:not(.is-visible) {
  opacity: 0;
  transform: translateY(24px);
}

.wr-motion [data-reveal]:not(.is-visible) .duo-mission-item {
  opacity: 0;
}

.wr-motion [data-reveal].is-visible .duo-mission-item {
  animation: wr-fade-up 450ms var(--wr-ease) both;
  animation-delay: calc(var(--wr-i, 0) * 22ms);
}

.duo-mission-item.selected .duo-mission-check {
  animation: wr-pop 420ms var(--wr-spring);
}

.duo-mission-item {
  transition: transform var(--wr-base) var(--wr-ease), box-shadow var(--wr-base) var(--wr-ease), border-color var(--wr-fast) var(--wr-ease), background var(--wr-fast) var(--wr-ease);
}

.duo-mission-item:active {
  transform: scale(0.97);
}

@keyframes wr-fade-up {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

@keyframes wr-slide-in {
  from {
    opacity: 0;
    transform: translateY(-6px) scale(0.98);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

@keyframes wr-pop {
  0% {
    transform: scale(0.4);
  }
  100% {
    transform: scale(1);
  }
}

/* ---------------------------------------------------------
   Small screens
   --------------------------------------------------------- */
@media (max-width: 900px) {
  .wr-source-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .wr-yt-samples {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 600px) {
  .wr-card {
    padding: 16px;
  }

  .wr-field {
    flex-wrap: wrap;
  }

  .wr-field .wr-input {
    flex: 1 1 100%;
  }

  .wr-field .wr-btn {
    flex: 1 1 100%;
  }

  .wr-seg-count {
    display: none;
  }

  .wr-yt-preview {
    flex-direction: column;
    align-items: stretch;
  }

  .wr-yt-preview-thumb {
    width: 100%;
  }
}

/* ---------------------------------------------------------
   Respect "reduce motion"
   --------------------------------------------------------- */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 1ms !important;
    animation-delay: 0ms !important;
    transition-duration: 1ms !important;
  }

  .wr-motion [data-reveal]:not(.is-visible),
  .wr-motion [data-reveal]:not(.is-visible) .duo-mission-item {
    opacity: 1;
    transform: none;
  }
}

/* YouTube link that cannot play (missing, private or embedding disabled) */
.wr-field.is-invalid {
  border-color: #f59e0b;
  box-shadow: 0 0 0 4px rgba(245, 158, 11, 0.16);
}

.wr-yt-preview.is-problem {
  border-color: #fde68a;
  background: #fffbeb;
}

.wr-yt-preview.is-problem .wr-yt-preview-kicker {
  color: #b45309;
}

/* ---------------------------------------------------------
   Page width: content up to 1440px (long lines beyond that hurt
   readability); the footer background spans the full screen.
   Overrides the legacy 1160px !important limits.
   --------------------------------------------------------- */
:root {
  --wr-page-max: 1440px;
  --wr-page-gutter: 32px;
}

#landing-portal .portal-container,
#landing-portal .cruip-container {
  max-width: calc(var(--wr-page-max) + 2 * var(--wr-page-gutter)) !important;
  padding: 0 var(--wr-page-gutter) !important;
}

#landing-portal .cruip-hero,
#landing-portal .cruip-bento-section,
#landing-portal .cruip-theme-selector-section,
#landing-portal .cruip-step-section {
  max-width: var(--wr-page-max) !important;
}

#landing-portal .cruip-navbar-wrapper {
  max-width: calc(var(--wr-page-max) + 2 * var(--wr-page-gutter));
  padding: 0 var(--wr-page-gutter);
}

/* Full-bleed footer: the element sits inside the centered container,
   so stretch it to the viewport and re-center its content. */
#landing-portal .cruip-footer {
  width: 100vw !important;
  max-width: none !important;
  margin-left: calc(50% - 50vw) !important;
  margin-right: calc(50% - 50vw) !important;
  margin-bottom: 0;
  padding-left: 0;
  padding-right: 0;
}

#landing-portal .cruip-footer-inner {
  max-width: calc(var(--wr-page-max) + 2 * var(--wr-page-gutter));
  padding: 0 var(--wr-page-gutter);
  box-sizing: border-box;
}

#landing-portal .cruip-footer-copy a {
  color: var(--wr-brand);
  font-weight: 600;
}

.wr-quickstart {
  max-width: 880px;
}

@media (max-width: 600px) {
  :root {
    --wr-page-gutter: 12px;
  }
}