/* ==========================================================================
   public-practice.css - the public SEO practice pages
   (/practice, /practice/{subject}, /practice/{subject}/q/{key}).

   Implements the Claude Design canvas "IBMarker Public Practice Pages"
   (design project: IB Marker practice pages design; spec Appendix B).
   Components (.panel, .btn, .chip, .pill, .qa-card, .section-eyebrow,
   .textarea, .form-label, .rule-cap) come from Styles/editorial.css - this
   file adds only page layout, the MCQ choice rows/states, the signup wall,
   and neutralizers for global.css bleed. Load order on these pages:
   global.css (master) -> editorial.css -> this file.
   ========================================================================== */

/* ==========================================================================
   PUBLIC CHROME (PublicSite.Master) - header, footer, shell.
   Matches the credentials/student shell: real IB_Circle mark + "IB Marker"
   wordmark on the left, emerald CTA on the right, practice-first nav.
   ========================================================================== */

.pubshell {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    background: var(--chassis-bg-base, #0a0a14);
    font-family: var(--font-body);
    text-align: left;
    /* chassis-derived scrim/glass channels (sticky header, overlays, sticky bar) */
    --pp2-scrim-rgb: 10, 10, 20;
    --pp2-glass-rgb: 13, 15, 26;
}

.pubmain { flex: 1 0 auto; }

/* ---- header ---- */
.pubnav {
    position: sticky;
    top: 0;
    z-index: 50;
    background: rgba(var(--pp2-scrim-rgb, 10, 10, 20), 0.82);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    border-bottom: 1px solid var(--card-border, rgba(255, 255, 255, 0.06));
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}
.pubnav.scrolled { box-shadow: 0 8px 28px rgba(0, 0, 0, 0.45); }

.pubnav-inner {
    max-width: 1160px;
    margin: 0 auto;
    padding: 12px 48px;
    display: flex;
    align-items: center;
    gap: 28px;
}

.pubnav-brand { display: flex; align-items: center; gap: 10px; text-decoration: none; }
.pubnav-mark { width: 30px; height: 30px; flex: none; border-radius: var(--radius-md, 8px); }
.pubnav-brandtext { display: flex; flex-direction: column; line-height: 1.1; }
.pubnav-name {
    font-family: var(--font-display);
    font-size: var(--font-size-md, 0.95rem);
    font-weight: 700;
    color: var(--ink-bright, #f8fafc);
}
.pubnav-sub {
    font-family: var(--font-mono);
    font-size: var(--ed-text-label, 10px);
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--brand-emerald, #50e6c3);
}

.pubnav-links { display: flex; align-items: center; gap: 6px; margin-right: auto; }

.pubnav-link, .pubnav-menu > summary {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 7px 12px;
    border-radius: var(--radius-sm, 4px);
    font-size: var(--font-size-sm, 0.9rem);
    color: var(--ink-secondary, #cbd5e1);
    text-decoration: none;
    cursor: pointer;
    list-style: none;
    transition: color 0.15s ease, background 0.15s ease;
}
.pubnav-link:hover, .pubnav-menu > summary:hover {
    color: var(--ink-bright, #f8fafc);
    background: rgba(255, 255, 255, 0.05);
}
.pubnav-menu > summary::-webkit-details-marker { display: none; }
.pubnav-menu > summary svg { width: 13px; height: 13px; transition: transform 0.18s ease; }
.pubnav-menu[open] > summary svg { transform: rotate(180deg); }
.pubnav-menu[open] > summary { color: var(--brand-emerald, #50e6c3); }

.pubnav-menu { position: relative; }
.pubnav-drop {
    position: absolute;
    top: calc(100% + 8px);
    left: 0;
    min-width: 280px;
    padding: 8px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2px;
    background: var(--pop-modal, #12131f);
    border: 1px solid var(--rule, rgba(255, 255, 255, 0.10));
    border-radius: var(--radius-md, 8px);
    box-shadow: 0 18px 44px rgba(0, 0, 0, 0.5);
}
.pubnav-dropitem {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 10px;
    padding: 8px 10px;
    border-radius: var(--radius-sm, 4px);
    font-size: var(--font-size-sm, 0.9rem);
    color: var(--ink-secondary, #cbd5e1);
    text-decoration: none;
}
.pubnav-dropitem:hover { background: rgba(255, 255, 255, 0.05); color: var(--brand-emerald, #50e6c3); }
.pubnav-dropitem span {
    font-family: var(--font-mono);
    font-size: var(--ed-text-micro, 10px);
    color: var(--ink-dim, #64748b);
    font-feature-settings: 'tnum';
}

.pubnav-auth { display: flex; align-items: center; gap: 10px; flex: none; }

.pubnav-login {
    padding: 8px 14px;
    border-radius: var(--radius-sm, 4px);
    font-size: var(--font-size-sm, 0.9rem);
    font-weight: 500;
    color: var(--ink-secondary, #cbd5e1);
    text-decoration: none;
    border: 1px solid var(--rule, rgba(255, 255, 255, 0.10));
    transition: color 0.15s ease, border-color 0.15s ease, background 0.15s ease;
}
.pubnav-login:hover {
    color: var(--brand-emerald, #50e6c3);
    border-color: rgba(var(--brand-teal-rgb, 45, 212, 168), 0.5);
    background: rgba(var(--brand-teal-rgb, 45, 212, 168), 0.08);
}

/* The student-facing primary CTA - same emerald as the Sign in button on the
   credentials shell, so the logged-out CTA is the colour students already know. */
.pubnav-cta {
    padding: 8px 16px;
    border-radius: var(--radius-sm, 4px);
    font-size: var(--font-size-sm, 0.9rem);
    font-weight: 600;
    background: var(--brand-emerald, #50e6c3);
    color: var(--accent-ink, #06241d);
    text-decoration: none;
    border: 1px solid var(--brand-emerald, #50e6c3);
    transition: background 0.15s ease, border-color 0.15s ease, box-shadow 0.15s ease;
}
.pubnav-cta:hover {
    background: var(--brand-emerald-hover, #6df0d2);
    border-color: var(--brand-emerald-hover, #6df0d2);
    box-shadow: 0 3px 12px rgba(var(--brand-teal-rgb, 45, 212, 168), 0.35);
}

/* ---- footer ---- */
.pubfoot {
    flex: none;
    border-top: 1px solid var(--card-border, rgba(255, 255, 255, 0.06));
    background: var(--chassis-bg-deep, #07101c);
    margin-top: 64px;
}
.pubfoot-inner {
    max-width: 1160px;
    margin: 0 auto;
    padding: 40px 48px 28px;
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1fr;
    gap: 32px;
}
.pubfoot-lockup { display: flex; align-items: center; gap: 10px; margin-bottom: 12px; }
.pubfoot-brand p {
    margin: 0;
    font-size: var(--font-size-sm, 0.9rem);
    line-height: 1.6;
    color: var(--ink-dim, #64748b);
    max-width: 34ch;
}
.pubfoot-h {
    font-family: var(--font-mono);
    font-size: var(--ed-text-label, 10px);
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--ink-mute, #5c6478);
    margin-bottom: 12px;
}
.pubfoot-col { display: flex; flex-direction: column; gap: 8px; }
.pubfoot-col a {
    font-size: var(--font-size-sm, 0.9rem);
    color: var(--ink-dim, #64748b);
    text-decoration: none;
}
.pubfoot-col a:hover { color: var(--brand-emerald, #50e6c3); }
.pubfoot-legal {
    max-width: 1160px;
    margin: 0 auto;
    padding: 18px 48px 32px;
    border-top: 1px solid var(--rule-soft, rgba(255, 255, 255, 0.05));
    display: flex;
    justify-content: space-between;
    gap: 16px;
    flex-wrap: wrap;
    font-size: var(--ed-text-fine, 11px);
    color: var(--ink-mute, #5c6478);
    line-height: 1.6;
}

@media (max-width: 980px) {
    .pubnav-inner { padding: 10px 18px; gap: 12px; }
    .pubnav-brandtext { display: none; }
    .pubnav-links { gap: 2px; }
    .pubnav-link, .pubnav-menu > summary { padding: 7px 9px; font-size: var(--font-size-xs, 0.85rem); }
    .pubnav-drop { grid-template-columns: 1fr; min-width: 220px; }
    .pubnav-login { display: none; }
    .pubnav-cta { padding: 8px 13px; }
    .pubfoot { margin-top: 40px; }
    .pubfoot-inner { grid-template-columns: 1fr 1fr; gap: 24px; padding: 28px 18px 20px; }
    .pubfoot-legal { padding: 16px 18px 28px; }
}

@media (max-width: 420px) {
    .pubnav-links .pubnav-link { display: none; }
    .pubfoot-inner { grid-template-columns: 1fr; }
}

/* global.css also defines .btn (glass style); editorial.css overrides the
   shared properties but these four bleed through - neutralize inside .pp2. */
.pp2 .btn {
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
    box-shadow: none;
    overflow: visible;
}
.pp2 .btn:hover { transform: none; box-shadow: 0 3px 10px var(--accent-tint-3, rgba(45, 212, 168, 0.18)); }
.pp2 .btn.ghost:hover, .pp2 .btn.subtle:hover { box-shadow: none; }

/* ---- shell ---- */
.pp2 {
    max-width: 1160px;
    margin: 0 auto;
    padding: 0 48px 56px;
    font-family: var(--font-body);
    color: var(--ink-2);
}
.pp2.pp2-narrow { max-width: 880px; }

.pp2 a { color: var(--brand-teal); text-decoration: none; }
.pp2 a:hover { color: var(--brand-teal-bright); }
.pp2 a.btn, .pp2 a.btn:hover { color: var(--accent-ink); }
.pp2 a.btn.ghost, .pp2 a.btn.subtle { color: var(--ink-2); }
.pp2 a.btn.ghost:hover, .pp2 a.btn.subtle:hover { color: var(--ink); }
.pp2 a.qa-card, .pp2 a.qa-card:hover { color: inherit; }

.pp2 h1, .pp2 h2, .pp2 h3 { font-family: var(--font-display); color: var(--ink); }

/* Editorial's eyebrow is coral; the public pages run the student green/teal
   scheme so the logged-out surface matches what students see signed in. */
.pp2 .section-eyebrow { color: var(--brand-emerald, #50e6c3); }
.pp2 .section-eyebrow::after { background: var(--brand-emerald, #50e6c3); }

.pp2-section { padding: 8px 0 48px; }

/* ---- level + meta badges ---- */
.pp2-lv {
    font-family: var(--font-mono);
    font-size: var(--ed-text-tiny);
    letter-spacing: 0.08em;
    border-radius: 2px;
    padding: 3px 8px;
    border: 1px solid var(--rule);
    color: var(--ink-3);
}
.pp2-lv.sl { color: var(--brand-teal); border-color: rgba(var(--brand-teal-rgb, 45, 212, 168), 0.35); }
.pp2-lv.hl { color: var(--brand-amber); border-color: rgba(251, 191, 36, 0.35); }
.pp2-lv.sm { padding: 2px 6px; }

.pp2-mono-note { font-family: var(--font-mono); font-size: var(--ed-text-micro); color: var(--ink-mute); }
.pp2-count { font-family: var(--font-mono); font-size: var(--ed-text-detail); color: var(--ink-3); font-feature-settings: 'tnum'; }
.pp2-qtype { font-family: var(--font-mono); font-size: var(--ed-text-tiny); letter-spacing: 0.1em; color: var(--ink-mute); }
.pp2-marks { font-family: var(--font-mono); font-size: var(--ed-text-detail); color: var(--ink); font-feature-settings: 'tnum'; }

/* ---- hero (subject landing) ---- */
.pp2-hero {
    display: grid;
    grid-template-columns: 1fr 380px;
    gap: 56px;
    align-items: center;
    padding: 64px 0 56px;
}
.pp2-hero h1 {
    margin: 0 0 16px;
    font-size: var(--font-size-6xl, 3rem);
    line-height: 1.14;
    font-weight: 700;
    letter-spacing: -0.01em;
    text-wrap: pretty;
}
.pp2-hero h1 em, .pp2-em {
    font-family: var(--font-accent);
    font-style: italic;
    font-weight: 500;
    color: var(--brand-teal);
}
.pp2-hero-sub {
    margin: 0 0 22px;
    font-size: var(--font-size-lg, 1rem);
    line-height: 1.6;
    color: var(--ink-2);
    max-width: 56ch;
}
.pp2-badges { display: flex; align-items: center; gap: 10px; margin-bottom: 26px; flex-wrap: wrap; }
.pp2-ctas { display: flex; align-items: center; gap: 12px; }
.pp2-ctas .btn { padding: 11px 22px; font-size: var(--ed-text-base); }

/* try-one mini card */
.pp2-try { align-self: start; display: block; }
.pp2-try .pp2-try-q { padding: 16px 20px 8px; font-size: var(--ed-text-base); color: var(--ink); line-height: 1.55; }
.pp2-try-choices { padding: 6px 20px 16px; display: flex; flex-direction: column; gap: 6px; }
.pp2-try-choice {
    display: flex; align-items: center; gap: 10px;
    padding: 9px 12px;
    border: 1px solid var(--rule);
    border-radius: 3px;
    font-size: var(--ed-text-body);
    color: var(--ink);
}
.pp2-try-choice .pp2-letter { width: 18px; height: auto; border: 0; font-size: var(--ed-text-small); }
.pp2-try-note { padding: 0 20px 16px; }

/* ---- topic grid (secondary: collapsed by default, subject-first practice) ---- */
.pp2-topicwrap > summary {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 9px 16px;
    border: 1px solid var(--rule, rgba(255, 255, 255, 0.10));
    border-radius: var(--radius-sm, 4px);
    cursor: pointer;
    list-style: none;
    font-size: var(--font-size-sm, 0.9rem);
    color: var(--ink-secondary, #cbd5e1);
}
.pp2-topicwrap > summary::-webkit-details-marker { display: none; }
.pp2-topicwrap > summary:hover { color: var(--ink); border-color: rgba(var(--brand-teal-rgb, 45, 212, 168), 0.5); }
.pp2-topicwrap > summary span {
    font-family: var(--font-mono);
    font-size: var(--ed-text-micro, 10px);
    color: var(--ink-dim, #64748b);
}
.pp2-topicwrap > summary::after { content: "+"; font-family: var(--font-mono); color: var(--brand-emerald, #50e6c3); }
.pp2-topicwrap[open] > summary::after { content: "\2212"; }
.pp2-topicwrap[open] > summary { margin-bottom: 14px; }
.pp2-topics { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.pp2-topics .qa-card { display: flex; flex-direction: column; gap: 6px; padding: 18px 20px; }
.pp2-tnum { font-family: var(--font-mono); font-size: var(--ed-text-micro); color: var(--brand-teal); margin-right: 6px; }

/* ---- question list panel ---- */
.pp2-filterbar {
    display: flex; align-items: center; gap: 18px;
    padding: 14px 20px;
    border-bottom: 1px solid var(--rule-soft);
    flex-wrap: wrap;
}
.pp2-filterbar .select { width: 240px; margin-left: auto; }
.pp2-qrow {
    display: flex; align-items: center; gap: 14px;
    padding: 13px 20px;
    color: inherit;
}
.pp2-qrow + .pp2-qrow, .pp2-qrow.rt { border-top: 1px solid var(--rule-soft); }
.pp2-qrow:hover { background: rgba(255, 255, 255, 0.02); }
.pp2 a.pp2-qrow, .pp2 a.pp2-qrow:hover { color: inherit; }
.pp2-qrow .pill { flex: none; color: var(--brand-teal); }
.pp2-qtext {
    flex: 1;
    font-size: var(--ed-text-base);
    color: var(--ink);
    white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.pp2-listfoot {
    display: flex; align-items: center; justify-content: space-between;
    padding: 12px 20px;
    border-top: 1px solid var(--rule-soft);
}

/* ---- how it works ---- */
.pp2-how { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.pp2-how-item { border-top: 1px solid var(--rule); padding-top: 14px; }
.pp2-hownum { font-family: var(--font-mono); font-size: var(--ed-text-micro); color: var(--brand-teal); margin-bottom: 8px; }
.pp2-howtitle { font-family: var(--font-display); font-size: var(--ed-text-h3); font-weight: 600; color: var(--ink); margin-bottom: 6px; }
.pp2-how-item p { margin: 0; font-size: var(--ed-text-body); line-height: 1.6; color: var(--ink-2); }

/* ---- SEO copy + FAQ ---- */
.pp2-seo { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; padding: 0 0 56px; }
.pp2-seo h2 { margin: 0 0 12px; font-size: var(--ed-text-title); font-weight: 600; text-wrap: pretty; }
.pp2-seo p { margin: 0 0 12px; font-size: var(--ed-text-body); line-height: 1.65; color: var(--ink-2); }
.pp2-faq details { border-top: 1px solid var(--rule-soft); }
.pp2-faq details:last-child { border-bottom: 1px solid var(--rule-soft); }
.pp2-faq summary {
    display: flex; align-items: center; justify-content: space-between; gap: 12px;
    padding: 14px 2px;
    cursor: pointer;
    font-size: var(--ed-text-base);
    color: var(--ink);
    font-weight: 500;
    list-style: none;
}
.pp2-faq summary::-webkit-details-marker { display: none; }
.pp2-faq summary .pp2-faq-mark { font-family: var(--font-mono); color: var(--ink-mute); }
.pp2-faq p { margin: 0; padding: 0 2px 16px; font-size: var(--ed-text-body); color: var(--ink-2); line-height: 1.6; }

/* ---- bottom subject links + disclaimer ---- */
.pp2-subjects-links { display: flex; flex-wrap: wrap; gap: 8px 14px; font-size: var(--ed-text-small); margin-bottom: 18px; }
.pp2-subjects-links a { color: var(--ink-3); }
.pp2-subjects-links a:hover { color: var(--brand-teal); }
.pp2-disclaimer {
    margin: 0;
    padding: 20px 0 0;
    border-top: 1px solid var(--rule-soft);
    color: var(--ink-mute);
    font-size: var(--ed-text-fine);
    line-height: 1.6;
}

/* ==========================================================================
   Question page
   ========================================================================== */
.pp2-topbar {
    display: flex; align-items: center; justify-content: space-between; gap: 16px;
    padding: 22px 0 18px;
    font-family: var(--font-mono);
    font-size: var(--ed-text-detail);
    color: var(--ink-3);
}
.pp2-topbar a { color: var(--ink-3); }
.pp2-topbar a:hover { color: var(--brand-teal); }
.pp2-topbar .sep { color: var(--ink-mute); }

.pp2-stem { padding: 22px; font-size: 15.5px; line-height: 1.6; color: var(--ink); }

/* MCQ choice rows */
.pp2-choice {
    display: flex; align-items: center; gap: 16px;
    width: 100%;
    padding: 15px 22px;
    text-align: left;
    background: transparent;
    color: var(--ink);
    border: none;
    border-top: 1px solid var(--rule-soft);
    cursor: pointer;
    font-family: var(--font-body);
    font-size: var(--ed-text-base);
}
.pp2-choice:hover:not(:disabled) { background: rgba(255, 255, 255, 0.025); }
.pp2-choice:disabled { cursor: default; }
.pp2-letter {
    flex: none;
    width: 26px; height: 26px;
    display: flex; align-items: center; justify-content: center;
    font-family: var(--font-mono);
    font-size: var(--ed-text-small);
    color: var(--ink-mute);
    border: 1px solid var(--rule);
    border-radius: 2px;
}
.pp2-choice-text { flex: 1; }
.pp2-anno { font-family: var(--font-accent); font-style: italic; font-size: var(--ed-text-small); }

.pp2-choice.is-correct {
    border-top-color: rgba(var(--brand-green-rgb, 74, 222, 128), 0.4);
    background: rgba(var(--brand-green-rgb, 74, 222, 128), 0.07);
    color: var(--brand-green);
}
.pp2-choice.is-correct .pp2-letter { color: var(--brand-green); border-color: var(--brand-green); }
.pp2-choice.is-wrong {
    border-top-color: rgba(255, 140, 140, 0.4);
    background: rgba(255, 140, 140, 0.08);
    color: var(--brand-coral);
}
.pp2-choice.is-wrong .pp2-letter { color: var(--brand-coral); border-color: var(--brand-coral); }

/* verdict strip inside the panel */
.pp2-verdict {
    display: none;
    align-items: center; gap: 14px;
    padding: 14px 22px;
}
.pp2-verdict.show { display: flex; }
.pp2-verdict.good { border-top: 1px solid rgba(var(--brand-green-rgb, 74, 222, 128), 0.35); background: rgba(var(--brand-green-rgb, 74, 222, 128), 0.05); }
.pp2-verdict.bad { border-top: 1px solid rgba(255, 140, 140, 0.35); background: rgba(255, 140, 140, 0.05); }
.pp2-verdict-word { font-family: var(--font-accent); font-style: italic; font-size: var(--ed-text-item-title); }
.pp2-verdict.good .pp2-verdict-word { color: var(--brand-green); }
.pp2-verdict.bad .pp2-verdict-word { color: var(--brand-coral); }
.pp2-verdict-copy { flex: 1; font-size: var(--ed-text-body); color: var(--ink-2); }
.pp2-verdict .btn { flex: none; }

.pp2-underbar {
    display: flex; align-items: center; justify-content: space-between; gap: 12px;
    padding: 10px 2px 0;
}
.pp2-pager {
    display: flex; align-items: center; justify-content: space-between; gap: 12px;
    padding: 26px 0 34px;
}

/* related */
.pp2-related { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.pp2-related .qa-card { display: flex; flex-direction: column; gap: 6px; padding: 16px 18px; }
.pp2-related .qa-top { display: flex; align-items: center; gap: 8px; }
.pp2-related .qa-top .pill { color: var(--brand-teal); }
.pp2-related .qa-top .pp2-marks { margin-left: auto; color: var(--ink-3); }

/* written answer */
.pp2-anslabel {
    display: flex; align-items: center; justify-content: space-between;
    margin: 16px 0 8px;
}
.pp2-anslabel .form-label { margin: 0; }
.pp2 .textarea.pp2-answer { font-family: var(--font-mono); font-size: var(--ed-text-compact); line-height: 1.7; width: 100%; box-sizing: border-box; }
.pp2-markbar {
    display: flex; align-items: center; justify-content: space-between; gap: 12px;
    margin-top: 12px;
}
.pp2-markbar .btn { padding: 10px 20px; }

/* markscheme teaser + signup wall */
.pp2-wallwrap { position: relative; margin-top: 20px; min-height: 480px; display: flex; flex-direction: column; }
.pp2-wallwrap > .panel { flex: 1; }
.pp2-msrow {
    display: flex; gap: 14px;
    padding: 8px 0;
    border-bottom: 1px solid var(--rule-soft);
}
.pp2-msrow:last-child { border-bottom: 0; }
.pp2-msrow .tag { font-family: var(--font-mono); font-size: var(--ed-text-detail); color: var(--brand-teal); width: 28px; flex: none; }
.pp2-msrow .txt { font-size: var(--ed-text-body); color: var(--ink); }
.pp2-msblur { padding: 16px 20px 20px; filter: blur(7px); user-select: none; pointer-events: none; }

.pp2-wallover {
    position: absolute; inset: 0;
    display: flex; align-items: center; justify-content: center;
    background: linear-gradient(180deg, rgba(var(--pp2-scrim-rgb), 0.15), rgba(var(--pp2-scrim-rgb), 0.82) 40%);
    border-radius: 4px;
    padding: 16px;
}
.pp2-wallcard {
    background: var(--pop-modal);
    border: 1px solid var(--rule);
    border-radius: 4px;
    padding: 6px;
    max-width: 460px;
    width: 100%;
    box-shadow: 0 18px 44px rgba(0, 0, 0, 0.5);
}
.pp2-wallinner {
    border: 1px solid var(--card-inset);
    border-radius: 2px;
    padding: 26px 30px;
    text-align: center;
}
.pp2-wallinner h3 { margin: 0 0 14px; font-size: var(--ed-text-title); font-weight: 600; }
.pp2-wallrows { text-align: left; margin: 0 auto 18px; max-width: 330px; }
.pp2-wallrow {
    display: flex; gap: 12px; align-items: baseline;
    padding: 8px 0;
    border-top: 1px solid var(--rule-soft);
}
.pp2-wallrow:last-child { border-bottom: 1px solid var(--rule-soft); }
.pp2-wallrow .n { font-family: var(--font-mono); font-size: var(--ed-text-micro); color: var(--brand-teal); }
.pp2-wallrow .t { font-size: var(--ed-text-body); color: var(--ink-2); }
.pp2-wallcta { display: flex; justify-content: center; padding: 12px 20px; font-size: var(--ed-text-base); margin-bottom: 10px; width: 100%; box-sizing: border-box; }
.pp2-wallfine { margin: 0 0 10px; font-size: var(--ed-text-detail); color: var(--ink-3); line-height: 1.55; }
.pp2-walllogin { font-size: var(--ed-text-detail); color: var(--ink-3); }

/* signed-in banner */
.pp2-signedin {
    display: flex; align-items: center; gap: 10px;
    padding: 12px 16px;
    margin: 16px 0 0;
    border: 1px solid rgba(var(--brand-teal-rgb, 45, 212, 168), 0.35);
    border-radius: 3px;
    font-size: var(--ed-text-body);
    color: var(--ink-2);
}

/* sticky mobile CTA bar */
.pp2-sticky {
    display: none;
    position: fixed; left: 0; right: 0; bottom: 0;
    gap: 10px;
    padding: 12px 16px 14px;
    background: rgba(var(--pp2-glass-rgb), 0.92);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-top: 1px solid var(--rule);
    z-index: 60;
}
.pp2-sticky .btn { flex: 1; display: flex; justify-content: center; padding: 13px 16px; font-size: var(--ed-text-base); }
.pp2-sticky .btn.ghost { flex: none; }
.pp2-sticky-note { text-align: center; font-family: var(--font-mono); font-size: var(--ed-text-label); color: var(--ink-mute); margin-top: 6px; }

.pp2-empty { color: var(--ink-dim); font-size: var(--ed-text-body); padding: 14px 20px; }

/* ---- responsive ---- */
@media (max-width: 980px) {
    .pp2 { padding: 0 18px 96px; }
    .pp2-hero { grid-template-columns: 1fr; gap: 26px; padding: 28px 0 32px; }
    .pp2-hero h1 { font-size: var(--font-size-4xl, 1.875rem); line-height: 1.18; }
    .pp2-try { display: none; }
    .pp2-topics { grid-template-columns: 1fr; }
    .pp2-seo { grid-template-columns: 1fr; gap: 28px; }
    .pp2-how { grid-template-columns: 1fr; gap: 16px; }
    .pp2-related { grid-template-columns: 1fr; }
    .pp2-qrow { flex-wrap: wrap; }
    .pp2-qtext { flex-basis: 100%; white-space: normal; }
    .pp2-filterbar .select { width: 100%; margin-left: 0; }
    .pp2-sticky { display: flex; flex-wrap: wrap; }
    .pp2-pager { display: none; }
}