/* Discovery: a quiet vocabulary library. Neutral surfaces, type-led topic cards,
   and one purple accent for selection and actions. All rules are page-scoped. */
body:has(.dv-hero) {
  --dv-ink: #222631;
  --dv-muted: #626875;
  --dv-border: #e2e5eb;
  --dv-paper: #fff;
  --dv-soft: #f6f7f9;
  --dv-accent: #6250bd;
}
body:has(.dv-hero) .wt-topbar-search { max-width: 460px; }
.dv-hero { padding: 12px 0 28px; margin-bottom: 24px; border-bottom: 1px solid var(--dv-border); }
.dv-hero-eyebrow, .dv-modal-kind, .dv-practice-eyebrow { display: block; color: var(--dv-accent); font-size: 11px; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; }
.dv-hero-title { margin: 12px 0; color: var(--dv-ink); font-family: Georgia, 'Times New Roman', serif; font-size: clamp(30px, 3.4vw, 44px); font-weight: 500; line-height: 1.16; letter-spacing: -.035em; }
.dv-hero-sub { margin: 0; max-width: 65ch; color: var(--dv-muted); font-size: 14px; line-height: 1.75; }
.dv-chips { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 32px; }
.dv-chip { appearance: none; border: 1px solid var(--dv-border); background: var(--dv-paper); color: var(--dv-muted); border-radius: 7px; padding: 9px 14px; font: inherit; font-size: 12px; font-weight: 600; cursor: pointer; }
.dv-chip:hover { border-color: #b9b3d7; color: var(--dv-accent); }
.dv-chip.is-active { border-color: var(--dv-accent); background: var(--dv-accent); color: #fff; }
.dv-row { margin-bottom: 34px; }
.dv-row-head { display: flex; align-items: baseline; justify-content: space-between; gap: 16px; margin-bottom: 16px; }
.dv-row-title { margin: 0; color: var(--dv-ink); font-size: 19px; font-weight: 650; letter-spacing: -.025em; }
.dv-row-blurb { margin: 5px 0 0; color: var(--dv-muted); font-size: 12px; line-height: 1.6; }
.dv-row-count { color: var(--dv-muted); font-size: 11px; white-space: nowrap; font-variant-numeric: tabular-nums; }
.dv-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(205px, 1fr)); gap: 12px; }
.dv-card { appearance: none; display: flex; flex-direction: column; justify-content: space-between; gap: 25px; min-height: 146px; min-width: 0; padding: 19px; border: 1px solid var(--dv-border); border-radius: 9px; background: var(--dv-paper); color: var(--dv-ink); text-align: left; font: inherit; cursor: pointer; transition: border-color .15s, box-shadow .15s; }
.dv-card:hover { border-color: #b9b3d7; box-shadow: 0 4px 14px #22263108; }
.dv-card-badges { display: flex; flex-wrap: wrap; gap: 7px; }
.dv-badge { padding: 3px 7px; border: 1px solid var(--dv-border); border-radius: 4px; color: var(--dv-muted); font-size: 10px; font-weight: 500; }
.dv-card-bottom { min-width: 0; }
.dv-card-title { margin: 0 0 8px; font-size: 18px; font-weight: 650; letter-spacing: -.02em; overflow-wrap: anywhere; }
.dv-card-meta { display: flex; align-items: center; flex-wrap: wrap; gap: 7px; color: var(--dv-muted); font-size: 11px; line-height: 1.5; }
.dv-card-dot { width: 3px; height: 3px; border-radius: 50%; background: #a4a8b2; flex-shrink: 0; }
.dv-platform-row { display: flex; flex-wrap: wrap; gap: 10px; }
.dv-platform-tile { display: inline-flex; align-items: center; gap: 9px; padding: 10px 14px; border: 1px solid var(--dv-border); background: var(--dv-paper); border-radius: 7px; cursor: default; }
.dv-platform-icon { display: inline-flex; height: 17px; filter: grayscale(1); }
.dv-platform-icon svg { height: 100%; width: auto; }
.dv-platform-label { color: var(--dv-ink); font-size: 12px; font-weight: 600; }
.dv-soon, .dv-empty, .dv-coming-soon { padding: 32px 20px; border: 1px dashed var(--dv-border); border-radius: 9px; background: var(--dv-paper); color: var(--dv-muted); text-align: center; font-size: 14px; }
.dv-coming-soon-title { color: var(--dv-ink); font-size: 22px; }
.dv-coming-soon-icon { display: none; }

/* Detail and practice stay in the same paper-like visual language. */
.dv-modal-backdrop { position: fixed; inset: 0; z-index: 60; display: flex; align-items: flex-start; justify-content: center; padding: 24px; overflow-y: auto; background: #1c223366; }
.dv-modal-backdrop[hidden] { display: none; }
.dv-modal-backdrop > * { margin: auto; }
.dv-modal, .dv-practice { position: relative; display: flex; flex-direction: column; width: 100%; max-width: 620px; max-height: calc(100dvh - 48px); overflow: hidden; background: var(--dv-paper); color: var(--dv-ink); border: 1px solid var(--dv-border); border-radius: 14px; box-shadow: 0 22px 70px #151a3026; }
.dv-modal-close { position: absolute; top: 16px; right: 16px; z-index: 2; appearance: none; width: 36px; height: 36px; border: 1px solid var(--dv-border); border-radius: 7px; background: var(--dv-paper); color: var(--dv-muted); cursor: pointer; font-size: 14px; }
.dv-modal-close:hover { background: var(--dv-soft); color: var(--dv-ink); }
.dv-modal-art { display: none; }
.dv-modal-body { padding: 32px; overflow-y: auto; }
.dv-modal-kind { padding-right: 30px; }
.dv-modal-title { margin: 14px 0 8px; font-family: Georgia, 'Times New Roman', serif; font-size: 36px; font-weight: 500; letter-spacing: -.025em; }
.dv-modal-tagline { margin: 0 0 18px; color: var(--dv-muted); font-size: 15px; }
.dv-modal-themes { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 20px; }
.dv-theme-tag { border: 1px solid var(--dv-border); border-radius: 4px; color: var(--dv-muted); padding: 4px 8px; font-size: 11px; }
.dv-modal-desc { margin: 0 0 24px; color: var(--dv-muted); font-size: 14px; line-height: 1.75; }
.dv-progress { padding: 18px; margin-bottom: 18px; border: 1px solid var(--dv-border); border-radius: 8px; background: var(--dv-soft); }
.dv-progress-head { display: flex; justify-content: space-between; align-items: baseline; gap: 12px; margin-bottom: 12px; }
.dv-progress-label { font-size: 12px; color: var(--dv-muted); }
.dv-progress-count { font-size: 16px; font-weight: 650; }
.dv-progress-bar { height: 6px; border-radius: 6px; background: #e2e3ea; overflow: hidden; }
.dv-progress-fill { height: 100%; width: 0; border-radius: inherit; background: var(--dv-accent); transition: width .2s; }
.dv-progress-note { margin: 10px 0 0; font-size: 12px; line-height: 1.5; color: var(--dv-muted); }
.dv-modal-actions, .dv-pc-done-actions { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 24px; }
.dv-btn { appearance: none; border: 1px solid var(--dv-border); border-radius: 7px; padding: 12px 18px; font: inherit; font-size: 13px; font-weight: 600; cursor: pointer; }
.dv-btn-primary { flex: 1; background: var(--dv-accent); border-color: var(--dv-accent); color: #fff; }
.dv-btn-primary:hover { background: #51409f; }
.dv-btn-ghost { background: var(--dv-paper); color: var(--dv-ink); }
.dv-btn-ghost:hover { background: var(--dv-soft); }
.dv-btn:disabled, .dv-pc-btn:disabled { opacity: .55; cursor: default; }
.dv-where-label { color: var(--dv-muted); font-size: 11px; font-weight: 600; margin-bottom: 10px; }
.dv-where-sources { display: flex; flex-wrap: wrap; gap: 7px; }
.dv-source-card { display: inline-block; padding: 6px 9px; color: var(--dv-muted); border: 1px solid var(--dv-border); border-radius: 4px; font-size: 11px; }
.dv-modal-foot { margin: 24px 0 0; padding-top: 16px; border-top: 1px solid var(--dv-border); color: var(--dv-muted); font-size: 11px; }
.dv-practice { max-width: 680px; }
.dv-practice-head { display: flex; justify-content: space-between; align-items: flex-start; gap: 18px; padding: 24px 66px 20px 24px; border-bottom: 1px solid var(--dv-border); }
.dv-practice-title { margin: 8px 0 0; font-size: 21px; font-weight: 650; }
.dv-practice-body { padding: 24px; overflow-y: auto; }
.dv-pc-progress { display: flex; justify-content: space-between; gap: 12px; color: var(--dv-muted); font-size: 12px; margin-bottom: 16px; }
.dv-pc-card { display: flex; flex-direction: column; justify-content: center; min-height: 230px; padding: 32px 24px; margin-bottom: 16px; border: 1px solid var(--dv-border); border-radius: 10px; background: var(--dv-soft); text-align: center; cursor: pointer; transition: transform .16s; }
.dv-pc-card:hover { border-color: #b9b3d7; }
.dv-pc-card.is-flipping { transform: scaleX(0); }
.dv-pc-word { font-family: Georgia, 'Times New Roman', serif; font-size: clamp(30px, 6vw, 44px); line-height: 1.2; word-break: break-word; }
.dv-pc-hint { margin-top: 20px; color: var(--dv-muted); font-size: 12px; }
.dv-pc-translation { font-size: clamp(24px, 4.5vw, 34px); font-weight: 600; color: var(--dv-accent); direction: rtl; margin-bottom: 8px; word-break: break-word; }
.dv-pc-back-word { font-size: 17px; font-weight: 600; margin-bottom: 16px; }
.dv-pc-tools { display: flex; flex-wrap: wrap; justify-content: center; gap: 8px; margin-bottom: 14px; }
.dv-pc-tool { appearance: none; display: inline-flex; align-items: center; gap: 7px; border: 1px solid var(--dv-border); background: var(--dv-paper); color: var(--dv-ink); border-radius: 7px; padding: 9px 14px; font: inherit; font-size: 12px; cursor: pointer; text-decoration: none; }
.dv-pc-tool:hover { border-color: var(--dv-accent); }
.dv-pc-tool-badge { padding: 2px 5px; background: #eeeaf9; color: var(--dv-accent); border-radius: 3px; font-size: 10px; font-weight: 700; }
.dv-pc-panel { padding: 18px; border: 1px solid var(--dv-border); border-radius: 8px; margin-bottom: 14px; background: var(--dv-paper); text-align: left; }
.dv-pc-panel-loading { display: flex; justify-content: center; align-items: center; gap: 8px; font-size: 12px; color: var(--dv-muted); }
.dv-pc-spinner { width: 14px; height: 14px; border: 2px solid var(--dv-border); border-top-color: var(--dv-accent); border-radius: 50%; animation: dv-spin .7s linear infinite; }
@keyframes dv-spin { to { transform: rotate(360deg); } }
.dv-pc-label { color: var(--dv-muted); font-size: 10px; font-weight: 700; text-transform: uppercase; letter-spacing: .08em; margin-bottom: 6px; }
.dv-pc-meaning { font-size: 14px; line-height: 1.6; margin-bottom: 18px; }
.dv-pc-example { display: flex; align-items: flex-start; gap: 8px; margin-bottom: 14px; }
.dv-pc-example-text { flex: 1; min-width: 0; }
.dv-pc-example-src { font-size: 13px; line-height: 1.6; }
.dv-pc-example-tr { font-size: 13px; color: var(--dv-muted); margin-top: 4px; direction: rtl; }
.dv-pc-mini { appearance: none; flex-shrink: 0; width: 30px; height: 30px; border: 1px solid var(--dv-border); border-radius: 5px; background: var(--dv-soft); color: var(--dv-muted); cursor: pointer; }
.dv-pc-mini:hover { color: var(--dv-accent); }
.dv-pc-mini.is-done { color: #237548; }
.dv-pc-links { display: flex; flex-direction: column; gap: 8px; }
.dv-pc-link { display: block; padding: 10px 12px; border: 1px solid var(--dv-border); border-radius: 6px; color: var(--dv-accent); font-size: 13px; text-decoration: none; }
.dv-pc-link:hover { background: var(--dv-soft); }
.dv-pc-actions { display: flex; gap: 10px; }
.dv-pc-btn { appearance: none; flex: 1; padding: 13px 10px; border: 1px solid var(--dv-border); border-radius: 7px; font: inherit; font-size: 13px; font-weight: 600; cursor: pointer; }
.dv-pc-know { background: var(--dv-accent); border-color: var(--dv-accent); color: #fff; }
.dv-pc-know:hover { background: #51409f; }
.dv-pc-dont { background: var(--dv-paper); color: var(--dv-ink); }
.dv-pc-dont:hover { background: var(--dv-soft); }
.dv-pc-done { text-align: center; padding: 24px 0; }
.dv-pc-done-icon { display: flex; justify-content: center; align-items: center; width: 52px; height: 52px; margin: 0 auto 18px; border-radius: 50%; background: #eeeaf9; color: var(--dv-accent); }
.dv-pc-done-icon svg { width: 26px; height: 26px; fill: none; stroke: currentColor; stroke-width: 2; }
.dv-pc-done-title { font-size: 22px; margin: 0 0 10px; }
.dv-pc-done-sub { color: var(--dv-muted); font-size: 13px; line-height: 1.6; margin: 0 0 24px; }
.dv-pc-done-actions { justify-content: center; }
.dv-pc-status { color: var(--dv-muted); text-align: center; margin-top: 14px; font-size: 12px; }
.dv-pc-status.is-error, .dv-progress-note.is-error, .dv-pc-panel-error { color: #b13939; }
.dv-pc-panel-error { text-align: center; font-size: 13px; }
.dv-chip:focus-visible, .dv-card:focus-visible, .dv-btn:focus-visible, .dv-modal-close:focus-visible, .dv-pc-card:focus-visible, .dv-pc-tool:focus-visible, .dv-pc-btn:focus-visible, .dv-pc-mini:focus-visible, .dv-pc-link:focus-visible { outline: 3px solid #b5a8e3; outline-offset: 3px; }
@media (max-width: 640px) {
  .dv-hero { padding-top: 4px; }
  .dv-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; }
  .dv-card { padding: 14px; min-height: 144px; gap: 20px; }
  .dv-card-title { font-size: 16px; }
  .dv-row-head { gap: 8px; }
  .dv-chip { padding: 9px 11px; }
  .dv-modal-backdrop { padding: 12px; }
  .dv-modal, .dv-practice { max-height: calc(100dvh - 24px); border-radius: 10px; }
  .dv-modal-body, .dv-practice-body { padding: 22px 18px; }
  .dv-practice-head { padding-left: 18px; }
}
@media (max-width: 380px) { .dv-grid { grid-template-columns: 1fr; } }
@media (prefers-reduced-motion: reduce) {
  .dv-card, .dv-progress-fill, .dv-pc-card { transition: none; }
  .dv-pc-spinner { animation: none; }
}