/* ═══════════════════════════════════════════════════════════
   ISANZURE: the three panels (Kanraphim, Innatraea, Haitasi)
   Brand guidelines Edition 1.0: shared.css tokens and the brand's own category fields only, Veilstone only.
   Gold is the accent, never the field. Each realm's ground is a brand field, the way the badges use them:
     Kanraphim  Reading field    #9C7A45 → #4A3418
     Innatraea  Trees field      #2F5A2C → #13260F
     Haitasi    Community field  #2B4A7A → #0F1D38
   The panel viewer itself is the World Engine's (assets/engine/layers.css, layers.js).
   ═══════════════════════════════════════════════════════════ */

.isz {
    --isz-k-a: #9C7A45; --isz-k-b: #4A3418;
    --isz-i-a: #2F5A2C; --isz-i-b: #13260F;
    --isz-h-a: #2B4A7A; --isz-h-b: #0F1D38;
}

/* one panel at a time (layers.css does this for the World Engine's own ids) */
html.we-lv[data-we-layer="kanraphim"] #kanraphim,
html.we-lv[data-we-layer="innatraea"] #innatraea,
html.we-lv[data-we-layer="haitasi"] #haitasi { display: block; }

/* the active tab takes its realm's field as its underline */
.isz .we-lv-tab[data-layer="kanraphim"][aria-selected="true"] { border-bottom-color: var(--isz-k-a); }
.isz .we-lv-tab[data-layer="innatraea"][aria-selected="true"] { border-bottom-color: color-mix(in srgb, var(--isz-i-a) 70%, var(--parchment)); }
.isz .we-lv-tab[data-layer="haitasi"][aria-selected="true"] { border-bottom-color: color-mix(in srgb, var(--isz-h-a) 70%, var(--parchment)); }

/* each realm's ground */
#kanraphim { background: linear-gradient(180deg, var(--bg-dark) 0%, color-mix(in srgb, var(--isz-k-b) 55%, var(--bg-dark)) 100%); }
#innatraea { background: linear-gradient(180deg, color-mix(in srgb, var(--isz-i-b) 70%, var(--bg-dark)) 0%, var(--bg-dark) 100%); }
#haitasi { background: linear-gradient(180deg, var(--bg-dark) 0%, color-mix(in srgb, var(--isz-h-b) 80%, var(--bg-dark)) 100%); }
#kanraphim .we-panel { border-color: color-mix(in srgb, var(--isz-k-a) 55%, transparent); }
#innatraea .we-panel { border-color: color-mix(in srgb, var(--isz-i-a) 80%, transparent);
    background: linear-gradient(180deg, color-mix(in srgb, var(--isz-i-a) 22%, var(--bg-dark)), var(--bg-dark)); }
#haitasi .we-panel { border-color: color-mix(in srgb, var(--isz-h-a) 85%, transparent);
    background: linear-gradient(180deg, var(--bg-dark), color-mix(in srgb, var(--isz-h-a) 18%, var(--bg-dark))); }

.isz-hero .hero-overlay h1 { letter-spacing: 0.06em; }
.isz-say { font-family: 'Veilstone Sans', sans-serif; font-size: 0.85rem; letter-spacing: 0.18em; text-transform: uppercase; }
.isz-realm .section-inner { padding-top: 1.25rem; }
.isz-intro p { color: var(--text-dark); }
.isz-lede { font-size: clamp(1.125rem, 2vw, 1.25rem); font-style: italic; text-align: center; color: var(--text-dark); }
.isz-reading { margin-top: 1.5rem; padding-top: 1.25rem; border-top: 1px solid color-mix(in srgb, var(--border-ornate) 35%, transparent);
    font-family: 'Veilstone Sans', sans-serif; font-size: 0.85rem; color: var(--wood-light); text-align: center; min-height: 1.5em; }
.isz-reading a { color: var(--text-dark); }
.isz-reading select { font-family: 'Veilstone Sans', sans-serif; font-size: 0.85rem; padding: 0.3rem 0.5rem; margin-left: 0.4rem;
    background: var(--parchment); color: var(--text-dark); border: 1px solid var(--wood-light); }

.isz-how { font-family: 'Veilstone Text', Georgia, serif; font-style: italic; font-size: 1.1rem; text-align: center;
    color: var(--parchment-dark); max-width: 40rem; margin: -0.5rem auto 1.75rem; }
.isz-wait { font-family: 'Veilstone Text', Georgia, serif; font-style: italic; color: var(--parchment-dark); margin: 0; }
.isz-noscript { text-align: center; padding: 2rem; }

.isz-chip, .isz-link {
    font-family: 'Veilstone Sans', sans-serif; font-size: 0.78rem; letter-spacing: 0.04em;
    color: var(--parchment); background: transparent; cursor: pointer;
    border: 1px solid color-mix(in srgb, var(--parchment) 35%, transparent); padding: 0.3rem 0.6rem; margin: 0.2rem 0.25rem 0 0;
    transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}
.isz-chip:hover, .isz-link:hover { background: var(--gold); border-color: var(--gold); color: var(--bg-dark); }
.isz-chip:focus-visible, .isz-link:focus-visible, .isz-tip:focus-visible, .isz-bead:focus-visible,
.isz-ep > button:focus-visible, .isz-myth button:focus-visible { outline: 2px solid var(--gold-light); outline-offset: 2px; }
.isz-told { font-family: 'Veilstone Sans', sans-serif; font-size: 0.68rem; letter-spacing: 0.1em; text-transform: uppercase;
    color: color-mix(in srgb, var(--gold) 80%, var(--parchment-dark)); }

/* ── I · Kanraphim: the descent ── */
.isz-descent { max-height: 78vh; overflow-y: auto; padding: 0; scrollbar-color: var(--isz-k-a) transparent; }
.isz-col { position: relative; padding: 2rem 1.5rem 3rem 3.25rem; }
.isz-col::before { content: ''; position: absolute; left: 1.5rem; top: 2.4rem; bottom: 0; width: 2px;
    background: linear-gradient(180deg, var(--gold-light), var(--isz-k-a) 30%, var(--isz-k-b) 70%, transparent); }
.isz-mark { position: relative; }
.isz-mark::before { content: ''; position: absolute; left: -2.05rem; top: 0.45rem; width: 0.7rem; height: 0.7rem; border-radius: 50%;
    background: var(--bg-dark); border: 2px solid var(--gold); }
.isz-departure { font-family: 'Veilstone Sans', sans-serif; font-weight: 700; letter-spacing: 0.14em; text-transform: uppercase;
    color: var(--gold-light); font-size: 0.85rem; }
.isz-departure::before { background: var(--gold-light) !important; box-shadow: 0 0 0 0.35rem color-mix(in srgb, var(--gold-light) 25%, transparent); }
.isz-when { font-family: 'Veilstone Sans', sans-serif; font-size: 0.68rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--gold); margin: 0 0 0.2rem; }
.isz-ep > button { display: block; width: 100%; text-align: left; background: transparent; border: 0; padding: 0; cursor: pointer; color: inherit; }
.isz-ep-title { font-family: 'Veilstone Text', Georgia, serif; font-size: 1.15rem; color: var(--text-light); }
.isz-ep > button:hover .isz-ep-title { color: var(--gold-light); }
.isz-ep-more { display: block; font-family: 'Veilstone Sans', sans-serif; font-size: 0.72rem; color: var(--parchment-dark); margin-top: 0.15rem; }
.isz-ep ul { list-style: none; margin: 0.5rem 0 0; padding: 0; }
.isz-ep li { margin: 0; }
.isz-ep li .isz-link { border: 0; padding: 0.2rem 0; text-align: left; font-family: 'Veilstone Text', Georgia, serif; font-size: 1rem;
    letter-spacing: 0; color: var(--parchment-dark); }
.isz-ep li .isz-link:hover { background: transparent; color: var(--gold-light); }
.isz-edge { position: relative; margin: 0 0 0 -3.25rem; padding: 2.5rem 1.5rem 2.5rem 3.25rem; text-align: center;
    font-family: 'Veilstone Text', Georgia, serif; font-style: italic; color: color-mix(in srgb, var(--parchment-dark) 70%, transparent); }
.isz-stratum { position: relative; margin-left: -3.25rem; padding: 1.5rem 1.5rem 2rem 3.25rem;
    border-top: 1px solid color-mix(in srgb, var(--isz-k-a) 35%, transparent);
    background: linear-gradient(180deg, color-mix(in srgb, var(--isz-k-a) var(--isz-tint, 6%), transparent), transparent); }
.isz-age { font-family: 'Veilstone Sans', sans-serif; font-weight: 700; font-size: 0.78rem; letter-spacing: 0.16em; text-transform: uppercase;
    color: var(--gold-light); margin: 0 0 1rem; }
.isz-myth { margin: 0 0 1.25rem; padding: 1rem 1.1rem; background: color-mix(in srgb, var(--bg-dark) 70%, transparent);
    border: 1px solid color-mix(in srgb, var(--isz-k-a) 45%, transparent); }
.isz-myth h4 { font-family: 'Veilstone Text', Georgia, serif; font-weight: 400; font-size: 1.2rem; color: var(--text-light); margin: 0 0 0.2rem; }
.isz-by { font-family: 'Veilstone Sans', sans-serif; font-size: 0.72rem; letter-spacing: 0.08em; color: var(--parchment-dark); margin: 0 0 0.6rem; }
.isz-telling { font-family: 'Veilstone Text', Georgia, serif; font-size: 1.05rem; line-height: 1.6; color: var(--parchment); white-space: pre-line; margin: 0 0 0.6rem; }
.isz-telling.is-short { display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; }
.isz-myth .isz-open { background: transparent; border: 0; padding: 0; color: var(--gold); cursor: pointer;
    font-family: 'Veilstone Sans', sans-serif; font-size: 0.72rem; letter-spacing: 0.12em; text-transform: uppercase; }
.isz-truth { margin-top: 0.6rem; padding-top: 0.6rem; border-top: 1px dashed color-mix(in srgb, var(--gold) 40%, transparent); }

/* ── II · Innatraea: the roots ── */
.isz-find { position: relative; display: flex; align-items: center; gap: 0.75rem; max-width: 34rem; margin: 0 auto 1rem; }
.isz-label { font-family: 'Veilstone Sans', sans-serif; font-size: 0.72rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--gold); flex: none; min-width: 2.6rem; }
.isz-combo { position: relative; flex: 1; min-width: 0; }
.isz-input { width: 100%; box-sizing: border-box; font-family: 'Veilstone Text', Georgia, serif; font-size: 1.05rem; padding: 0.6rem 0.8rem;
    background: var(--bg-frame); color: var(--text-light); border: 1px solid color-mix(in srgb, var(--parchment) 40%, transparent); }
.isz-input:focus { outline: 2px solid var(--gold-light); outline-offset: 1px; }
.isz-list { position: absolute; z-index: 20; left: 0; right: 0; top: 100%; margin: 0; padding: 0.25rem 0; list-style: none;
    background: var(--bg-frame); border: 1px solid var(--border-ornate); max-height: 18rem; overflow-y: auto;
    box-shadow: 0 10px 24px color-mix(in srgb, var(--bg-dark) 60%, transparent); }
.isz-list li { padding: 0.45rem 0.8rem; cursor: pointer; font-family: 'Veilstone Text', Georgia, serif; color: var(--parchment); }
.isz-list li small { font-family: 'Veilstone Sans', sans-serif; font-size: 0.68rem; letter-spacing: 0.08em; color: var(--parchment-dark); margin-left: 0.4rem; }
.isz-list li[aria-selected="true"], .isz-list li:hover { background: color-mix(in srgb, var(--gold) 22%, transparent); }
.isz-trail { text-align: center; min-height: 1.6rem; margin: 0 0 0.75rem; font-family: 'Veilstone Sans', sans-serif; font-size: 0.72rem; color: var(--parchment-dark); }
.isz-trail button { background: none; border: 0; color: var(--parchment-dark); cursor: pointer; font: inherit; padding: 0.1rem 0.2rem; text-decoration: underline; text-underline-offset: 3px; }
.isz-trail button:hover { color: var(--gold-light); }

.isz-center { text-align: center; max-width: 40rem; margin: 0 auto; }
.isz-kind { font-family: 'Veilstone Sans', sans-serif; font-size: 0.68rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--gold); margin: 0 0 0.3rem; }
.isz-center h3 { font-family: 'Veilstone Text', Georgia, serif; font-weight: 400; font-size: clamp(1.5rem, 3vw, 2rem); color: var(--text-light); margin: 0 0 0.4rem; }
.isz-center .isz-sum { font-family: 'Veilstone Text', Georgia, serif; font-size: 1.08rem; line-height: 1.55; color: var(--parchment); margin: 0 0 0.35rem; }
.isz-also { font-family: 'Veilstone Sans', sans-serif; font-size: 0.72rem; color: var(--parchment-dark); margin: 0 0 0.3rem; }
.isz-grove { position: relative; margin: 0.5rem auto 0; }
.isz-grove svg { position: absolute; inset: 0; width: 100%; height: 100%; overflow: visible; pointer-events: none; }
.isz-grove path { fill: none; stroke: color-mix(in srgb, var(--isz-i-a) 55%, var(--parchment-dark)); stroke-linecap: round;
    stroke-dasharray: var(--len); stroke-dashoffset: var(--len); animation: isz-grow 0.9s ease-out forwards; }
.isz-grove path.is-on { stroke: var(--gold-light); }
@keyframes isz-grow { to { stroke-dashoffset: 0; } }
.isz-tip { position: absolute; transform: translate(-50%, 0); width: var(--tipw, 8.5rem); text-align: center; cursor: pointer;
    background: var(--bg-dark); color: var(--parchment); border: 1px solid color-mix(in srgb, var(--isz-i-a) 85%, var(--parchment-dark));
    padding: 0.4rem 0.45rem; opacity: 0; animation: isz-in 0.5s ease-out forwards; font-family: 'Veilstone Text', Georgia, serif; font-size: 0.92rem; line-height: 1.2; }
.isz-tip small { display: block; font-family: 'Veilstone Sans', sans-serif; font-size: 0.6rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--parchment-dark); margin-top: 0.2rem; }
.isz-tip:hover, .isz-tip.is-on { border-color: var(--gold); color: var(--text-light); }
@keyframes isz-in { from { opacity: 0; transform: translate(-50%, -6px); } to { opacity: 1; transform: translate(-50%, 0); } }
.isz-rootlist { list-style: none; margin: 1.25rem 0 0; padding: 0; border-top: 1px solid color-mix(in srgb, var(--isz-i-a) 60%, transparent); }
.isz-rootlist li { display: flex; flex-wrap: wrap; align-items: baseline; gap: 0.35rem 0.6rem; padding: 0.5rem 0;
    border-bottom: 1px solid color-mix(in srgb, var(--isz-i-a) 30%, transparent); font-family: 'Veilstone Text', Georgia, serif; color: var(--parchment-dark); }
.isz-rootlist li .isz-link { margin: 0; }
.isz-rootlist .isz-told { margin-left: auto; }
.isz-pager { display: flex; justify-content: center; gap: 0.5rem; margin-top: 1rem; align-items: center;
    font-family: 'Veilstone Sans', sans-serif; font-size: 0.72rem; color: var(--parchment-dark); }

/* ── III · Haitasi: the threads ── */
.isz-pair { display: flex; flex-wrap: wrap; gap: 0.75rem 1.25rem; justify-content: center; align-items: center; max-width: 52rem; margin: 0 auto 1.25rem; }
.isz-pair .isz-find { flex: 1 1 18rem; margin: 0; }
.isz-go:disabled { opacity: 0.45; cursor: default; }
.isz-thread { list-style: none; margin: 0 auto; padding: 0; max-width: 34rem; }
.isz-thread li { text-align: center; }
.isz-bead { cursor: pointer; background: var(--bg-dark); color: var(--text-light); border: 1px solid color-mix(in srgb, var(--isz-h-a) 70%, var(--parchment-dark));
    padding: 0.55rem 1rem; font-family: 'Veilstone Text', Georgia, serif; font-size: 1.1rem; opacity: 0; animation: isz-fade 0.45s ease-out forwards; }
.isz-bead small { display: block; font-family: 'Veilstone Sans', sans-serif; font-size: 0.6rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--parchment-dark); }
.isz-bead:hover { border-color: var(--gold); }
.isz-strand { position: relative; padding: 0.9rem 0; opacity: 0; animation: isz-fade 0.45s ease-out forwards; }
.isz-strand::before { content: ''; position: absolute; left: 50%; top: 0; bottom: 0; width: 1px;
    background: linear-gradient(180deg, color-mix(in srgb, var(--isz-h-a) 60%, var(--parchment-dark)), var(--gold)); }
.isz-strand span { position: relative; display: inline-block; background: var(--bg-dark); padding: 0.15rem 0.6rem;
    font-family: 'Veilstone Text', Georgia, serif; font-style: italic; color: var(--parchment-dark); }
.isz-strand .isz-told { display: block; position: relative; background: var(--bg-dark); width: max-content; margin: 0.15rem auto 0; padding: 0 0.5rem; }
@keyframes isz-fade { from { opacity: 0; } to { opacity: 1; } }
.isz-none { text-align: center; font-family: 'Veilstone Text', Georgia, serif; font-style: italic; color: var(--parchment-dark); margin: 0; }

@media (prefers-reduced-motion: reduce) {
    .isz-grove path, .isz-tip, .isz-bead, .isz-strand { animation: none; opacity: 1; stroke-dashoffset: 0; }
}
@media (max-width: 480px) {
    .isz .we-section { padding: 2.5rem 1rem; }
    .isz .we-panel { padding: 1rem; }
}
@media (max-width: 640px) {
    .isz-col { padding: 1.5rem 1rem 2rem 2.6rem; }
    .isz-col::before { left: 1.1rem; }
    .isz-mark::before { left: -1.85rem; }
    .isz-edge, .isz-stratum { margin-left: -2.6rem; padding-left: 2.6rem; }
    .isz-tip { font-size: 0.85rem; }
}