/* Update 021: Website Demo 005 — Practice & Proof */
.practice-proof-demo {
    --pp-navy: #14263d;
    --pp-navy-deep: #091727;
    --pp-burgundy: #8a2738;
    --pp-burgundy-deep: #5f1525;
    --pp-gold: #d6a64f;
    --pp-teal: #267b78;
    --pp-blue: #3d6fa5;
    --pp-coral: #d96852;
    --pp-paper: #f5f0e5;
    --pp-paper-bright: #fffdf7;
    --pp-ink: #1e2936;
    --pp-muted: #637083;
    --pp-line: #d8d0c2;
    overflow: hidden;
    color: var(--pp-ink);
    background: var(--pp-paper);
}
.practice-proof-demo *,
.practice-proof-demo *::before,
.practice-proof-demo *::after { box-sizing: border-box; }
.practice-proof-demo h1,
.practice-proof-demo h2,
.practice-proof-demo h3,
.practice-proof-demo h4,
.practice-proof-demo p { margin-top: 0; }
.practice-proof-demo button,
.practice-proof-demo select { font: inherit; }
.practice-proof-demo button,
.practice-proof-demo a { -webkit-tap-highlight-color: transparent; }
.practice-proof-disclaimer {
    padding: .72rem max(1rem, calc((100vw - 1420px) / 2 + 1.5rem));
    display: flex;
    justify-content: center;
    gap: .45rem 1rem;
    flex-wrap: wrap;
    color: #e7edf3;
    background: var(--pp-navy-deep);
    font-size: .72rem;
    text-align: center;
}
.practice-proof-disclaimer strong {
    color: #f1c875;
    font-size: .68rem;
    letter-spacing: .09em;
    text-transform: uppercase;
}
.practice-proof-masthead {
    position: relative;
    z-index: 20;
    min-height: 88px;
    padding: 1rem max(1.2rem, calc((100vw - 1420px) / 2 + 1.5rem));
    display: grid;
    grid-template-columns: minmax(260px, auto) 1fr auto;
    gap: 2rem;
    align-items: center;
    border-bottom: 1px solid rgba(20,38,61,.13);
    background: rgba(255,253,247,.97);
    box-shadow: 0 12px 35px rgba(20,38,61,.08);
}
.practice-proof-brand {
    display: inline-flex;
    gap: .85rem;
    align-items: center;
    color: var(--pp-navy);
    text-decoration: none;
}
.practice-proof-brand > span:last-child { display: grid; }
.practice-proof-brand strong { font-size: 1.03rem; line-height: 1; }
.practice-proof-brand small { margin-top: .28rem; color: var(--pp-muted); font-size: .64rem; }
.practice-proof-brand-mark {
    position: relative;
    width: 52px;
    aspect-ratio: 1;
    display: grid;
    place-items: center;
    overflow: hidden;
    border-radius: 14px 14px 14px 3px;
    color: #fff;
    background: var(--pp-burgundy);
    box-shadow: inset 0 0 0 2px rgba(255,255,255,.14), 0 8px 20px rgba(94,21,37,.2);
}
.practice-proof-brand-mark i {
    position: absolute;
    inset: 8px;
    border: 1px solid rgba(255,255,255,.38);
    border-radius: 9px 9px 9px 2px;
}
.practice-proof-brand-mark b { position: relative; z-index: 2; font-family: var(--serif); font-size: 1.15rem; }
.practice-proof-brand-mark em { position: absolute; right: 7px; bottom: 4px; color: var(--pp-gold); font-size: .8rem; font-style: normal; font-weight: 950; }
.practice-proof-masthead nav { display: flex; justify-content: center; gap: clamp(.8rem, 2vw, 1.8rem); }
.practice-proof-masthead nav a,
.practice-proof-back {
    color: var(--pp-navy);
    font-size: .72rem;
    font-weight: 850;
    letter-spacing: .04em;
    text-decoration: none;
}
.practice-proof-masthead nav a:hover,
.practice-proof-back:hover { color: var(--pp-burgundy); }
.practice-proof-back {
    padding: .78rem 1rem;
    border: 1px solid rgba(20,38,61,.18);
    border-radius: 999px;
    white-space: nowrap;
}
.practice-proof-hero {
    position: relative;
    min-height: 760px;
    padding: clamp(4.2rem, 8vw, 7rem) max(1.2rem, calc((100vw - 1420px) / 2 + 1.5rem)) 5rem;
    display: grid;
    grid-template-columns: minmax(0, 1.05fr) minmax(420px, .9fr);
    gap: clamp(2.5rem, 6vw, 6.5rem);
    align-items: center;
    color: #fff;
    background:
        linear-gradient(90deg, rgba(9,23,39,.96), rgba(20,38,61,.9) 52%, rgba(95,21,37,.83)),
        repeating-linear-gradient(0deg, rgba(255,255,255,.025) 0 1px, transparent 1px 36px),
        var(--pp-navy);
}
.practice-proof-hero::before {
    content: '';
    position: absolute;
    width: 620px;
    aspect-ratio: 1;
    left: -280px;
    top: -250px;
    border: 1px solid rgba(255,255,255,.08);
    border-radius: 50%;
    box-shadow: 0 0 0 68px rgba(255,255,255,.018), 0 0 0 145px rgba(255,255,255,.012);
}
.practice-proof-hero-copy { position: relative; z-index: 3; max-width: 760px; }
.practice-proof-eyebrow {
    margin-bottom: 1rem;
    color: var(--pp-burgundy);
    font-size: .69rem;
    font-weight: 950;
    letter-spacing: .14em;
    text-transform: uppercase;
}
.practice-proof-eyebrow.light { color: #f1c875; }
.practice-proof-hero-copy .practice-proof-eyebrow { color: #f1c875; }
.practice-proof-hero-copy h1 {
    max-width: 820px;
    margin-bottom: 1.4rem;
    font-family: var(--serif);
    font-size: clamp(3.6rem, 7vw, 7.3rem);
    font-weight: 650;
    line-height: .91;
    letter-spacing: -.045em;
}
.practice-proof-hero-copy h1 span { color: #f2c875; }
.practice-proof-hero-copy > p:not(.practice-proof-eyebrow) {
    max-width: 720px;
    color: #dbe2e9;
    font-size: clamp(1rem, 1.45vw, 1.22rem);
    line-height: 1.75;
}
.practice-proof-hero-actions { margin-top: 2rem; display: flex; gap: 1rem; flex-wrap: wrap; }
.practice-proof-primary,
.practice-proof-secondary {
    min-height: 52px;
    padding: .9rem 1.2rem;
    display: inline-flex;
    gap: .65rem;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
    font-size: .78rem;
    font-weight: 900;
    text-decoration: none;
}
.practice-proof-primary { color: var(--pp-navy-deep); background: #f1c875; box-shadow: 0 14px 30px rgba(0,0,0,.2); }
.practice-proof-secondary { color: #fff; border: 1px solid rgba(255,255,255,.34); background: rgba(255,255,255,.05); }
.practice-proof-primary:hover { color: var(--pp-navy-deep); transform: translateY(-2px); }
.practice-proof-secondary:hover { color: #fff; background: rgba(255,255,255,.11); }
.practice-proof-hero-board { position: relative; z-index: 2; min-height: 520px; }
.practice-proof-folder {
    position: absolute;
    border-radius: 10px;
    box-shadow: 0 32px 70px rgba(0,0,0,.29);
}
.practice-proof-folder.folder-back {
    width: 68%;
    height: 73%;
    left: 4%;
    top: 12%;
    padding: 1.2rem;
    color: #fff;
    background: #426e85;
    transform: rotate(-7deg);
}
.practice-proof-folder.folder-back::before { content: ''; position: absolute; left: 1rem; top: -22px; width: 42%; height: 32px; border-radius: 10px 10px 0 0; background: #426e85; }
.practice-proof-folder.folder-back span { font-size: .62rem; font-weight: 900; letter-spacing: .11em; }
.practice-proof-folder.folder-front {
    width: 74%;
    min-height: 76%;
    right: 4%;
    top: 15%;
    padding: 3.8rem 2rem 2rem;
    color: var(--pp-ink);
    background: #f4dfaa;
    transform: rotate(3deg);
}
.practice-proof-folder.folder-front::before { content: ''; position: absolute; left: 0; right: 0; top: 0; height: 19px; border-radius: 10px 10px 0 0; background: #d3a851; }
.practice-proof-folder-tab { position: absolute; left: 1rem; top: -24px; padding: .72rem 1.2rem; border-radius: 9px 9px 0 0; color: #fff; background: var(--pp-burgundy); font-size: .63rem; font-weight: 950; letter-spacing: .1em; }
.practice-proof-folder-label { color: var(--pp-burgundy); font-size: .68rem; font-weight: 950; letter-spacing: .1em; text-transform: uppercase; }
.practice-proof-folder.folder-front strong { margin-top: .7rem; display: block; font-family: var(--serif); font-size: clamp(2rem, 4vw, 3.9rem); line-height: 1; }
.practice-proof-folder-lines { margin-top: 1.4rem; display: grid; gap: .7rem; }
.practice-proof-folder-lines i { height: 5px; border-radius: 999px; background: rgba(20,38,61,.14); }
.practice-proof-folder-lines i:nth-child(2) { width: 82%; }
.practice-proof-folder-lines i:nth-child(3) { width: 91%; }
.practice-proof-folder-lines i:nth-child(4) { width: 58%; }
.practice-proof-stamps { margin-top: 2rem; display: flex; gap: .55rem; flex-wrap: wrap; }
.practice-proof-stamps b { padding: .55rem .7rem; border: 2px solid currentColor; border-radius: 5px; color: var(--pp-teal); font-size: .58rem; letter-spacing: .08em; transform: rotate(-3deg); }
.practice-proof-stamps b:nth-child(2) { color: var(--pp-burgundy); transform: rotate(3deg); }
.practice-proof-stamps b:nth-child(3) { color: var(--pp-blue); transform: rotate(-1deg); }
.practice-proof-note { position: absolute; z-index: 5; width: 230px; min-height: 118px; padding: 1.15rem; color: var(--pp-ink); background: #fff8ce; box-shadow: 0 18px 38px rgba(0,0,0,.22); }
.practice-proof-note span { display: block; margin-bottom: .7rem; color: var(--pp-burgundy); font-size: .58rem; font-weight: 950; letter-spacing: .08em; text-transform: uppercase; }
.practice-proof-note strong { font-family: var(--serif); font-size: 1rem; line-height: 1.35; }
.practice-proof-note.note-one { left: -2%; bottom: 4%; transform: rotate(-5deg); }
.practice-proof-note.note-two { right: -3%; top: 3%; transform: rotate(5deg); background: #dcefe7; }
.practice-proof-thread { position: absolute; z-index: 4; height: 2px; background: rgba(230,91,82,.72); transform-origin: left center; }
.practice-proof-thread.one { left: 18%; bottom: 30%; width: 54%; transform: rotate(-13deg); }
.practice-proof-thread.two { left: 59%; top: 20%; width: 31%; transform: rotate(58deg); }
.practice-proof-pin { position: absolute; z-index: 6; width: 13px; aspect-ratio: 1; border: 2px solid rgba(255,255,255,.8); border-radius: 50%; background: var(--pp-coral); box-shadow: 0 4px 9px rgba(0,0,0,.25); }
.practice-proof-pin.pin-a { left: 16%; bottom: 32%; }
.practice-proof-pin.pin-b { left: 70%; bottom: 46%; }
.practice-proof-pin.pin-c { right: 8%; top: 13%; }
.practice-proof-brief {
    position: relative;
    z-index: 4;
    grid-column: 1 / -1;
    margin-top: 1.2rem;
    padding: 1.35rem 1.5rem;
    display: grid;
    grid-template-columns: minmax(180px, .45fr) minmax(280px, 1.1fr) minmax(260px, .8fr);
    gap: 1.5rem;
    align-items: start;
    border: 1px solid rgba(255,255,255,.15);
    border-radius: 12px;
    background: rgba(255,255,255,.06);
    backdrop-filter: blur(8px);
}
.practice-proof-brief > span { color: #f1c875; font-size: .62rem; font-weight: 950; letter-spacing: .1em; text-transform: uppercase; }
.practice-proof-brief blockquote { margin: 0; font-family: var(--serif); font-size: clamp(1.1rem, 2vw, 1.55rem); line-height: 1.35; }
.practice-proof-brief ol { margin: 0; padding-left: 1.25rem; display: grid; gap: .4rem; }
.practice-proof-brief ol a { color: #fff; font-size: .75rem; text-decoration-color: rgba(255,255,255,.28); }
.practice-proof-brief p { grid-column: 2 / -1; margin-bottom: 0; color: #cdd7df; font-size: .78rem; line-height: 1.65; }
.practice-proof-intro,
.practice-proof-learning,
.practice-proof-notes { padding: clamp(4.5rem, 8vw, 7rem) max(1.2rem, calc((100vw - 1420px) / 2 + 1.5rem)); }
.practice-proof-intro > div:first-child,
.practice-proof-notes > header { max-width: 880px; }
.practice-proof-intro h2,
.practice-proof-notes h2,
.practice-proof-section-heading h2 {
    margin-bottom: 1rem;
    color: var(--pp-navy);
    font-family: var(--serif);
    font-size: clamp(2.4rem, 4.5vw, 4.8rem);
    line-height: 1.02;
    letter-spacing: -.025em;
}
.practice-proof-intro-grid { margin-top: 3rem; display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; }
.practice-proof-intro-grid article { min-height: 250px; padding: 1.7rem; border: 1px solid var(--pp-line); border-radius: 12px; background: var(--pp-paper-bright); box-shadow: 0 16px 38px rgba(20,38,61,.06); }
.practice-proof-intro-grid article > span { color: var(--pp-burgundy); font-family: var(--serif); font-size: 2rem; }
.practice-proof-intro-grid h3 { margin: 2.2rem 0 .75rem; color: var(--pp-navy); font-family: var(--serif); font-size: 1.45rem; }
.practice-proof-intro-grid p { margin-bottom: 0; color: var(--pp-muted); line-height: 1.7; }
.practice-proof-lab,
.practice-proof-briefing { padding: clamp(4.5rem, 8vw, 7rem) max(1.2rem, calc((100vw - 1420px) / 2 + 1.5rem)); color: #fff; background: var(--pp-navy); }
.practice-proof-section-heading { display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(280px, .65fr); gap: 3rem; align-items: end; }
.practice-proof-lab .practice-proof-section-heading h2,
.practice-proof-briefing .practice-proof-section-heading h2 { color: #fff; }
.practice-proof-section-heading > p { margin-bottom: .45rem; color: inherit; opacity: .74; line-height: 1.75; }
.practice-proof-lab-shell { margin-top: 3rem; display: grid; grid-template-columns: minmax(260px, 340px) minmax(0, 1fr); gap: 1.2rem; align-items: start; }
.practice-proof-controls { position: sticky; top: 1rem; padding: 1.3rem; border: 1px solid rgba(255,255,255,.12); border-radius: 12px; background: rgba(255,255,255,.055); }
.practice-proof-control-group + .practice-proof-control-group { margin-top: 1.4rem; padding-top: 1.4rem; border-top: 1px solid rgba(255,255,255,.12); }
.practice-proof-control-label { display: block; margin-bottom: .75rem; color: #f1c875; font-size: .62rem; font-weight: 950; letter-spacing: .09em; text-transform: uppercase; }
.practice-proof-case-picker,
.practice-proof-lens-picker { display: grid; gap: .55rem; }
.practice-proof-case-picker button,
.practice-proof-lens-picker button {
    width: 100%;
    padding: .85rem;
    display: grid;
    gap: .2rem;
    border: 1px solid rgba(255,255,255,.13);
    border-radius: 8px;
    color: #e6edf2;
    background: rgba(255,255,255,.035);
    text-align: left;
    cursor: pointer;
}
.practice-proof-case-picker button:hover,
.practice-proof-lens-picker button:hover { border-color: rgba(241,200,117,.5); }
.practice-proof-case-picker button.is-active,
.practice-proof-lens-picker button.is-active { border-color: #f1c875; color: #fff; background: rgba(241,200,117,.13); box-shadow: inset 4px 0 0 #f1c875; }
.practice-proof-case-picker b,
.practice-proof-lens-picker span { font-size: .78rem; }
.practice-proof-case-picker small,
.practice-proof-lens-picker small { color: #aebbc7; font-size: .64rem; line-height: 1.4; }
.practice-proof-lens-picker { grid-template-columns: 1fr; }
.practice-proof-file-status { margin-top: 1.4rem; padding: 1rem; border-radius: 8px; color: var(--pp-ink); background: #f5dfaa; }
.practice-proof-file-status > span { color: var(--pp-burgundy); font-size: .59rem; font-weight: 950; letter-spacing: .08em; text-transform: uppercase; }
.practice-proof-file-status strong { margin: .4rem 0 .65rem; display: block; font-family: var(--serif); font-size: 2.3rem; line-height: 1; }
.practice-proof-file-status > div { height: 8px; overflow: hidden; border-radius: 999px; background: rgba(20,38,61,.14); }
.practice-proof-file-status > div i { width: 12%; height: 100%; display: block; border-radius: inherit; background: linear-gradient(90deg, var(--pp-burgundy), var(--pp-teal)); transition: width .3s ease; }
.practice-proof-file-status p { margin: .65rem 0 0; color: #516071; font-size: .65rem; line-height: 1.5; }
.practice-proof-reset { width: 100%; margin-top: .8rem; padding: .72rem; border: 1px solid rgba(255,255,255,.18); border-radius: 7px; color: #fff; background: transparent; font-size: .67rem; font-weight: 850; cursor: pointer; }
.practice-proof-casework { min-width: 0; overflow: hidden; border-radius: 14px; color: var(--pp-ink); background: var(--pp-paper-bright); box-shadow: 0 28px 70px rgba(0,0,0,.2); }
.practice-proof-case-header { padding: 2rem; display: grid; grid-template-columns: 1fr auto; gap: 2rem; border-bottom: 1px solid var(--pp-line); background: linear-gradient(120deg, #fffdf7, #f2eadb); }
.practice-proof-case-header > div:first-child > span { color: var(--pp-burgundy); font-size: .62rem; font-weight: 950; letter-spacing: .1em; }
.practice-proof-case-header h3 { margin: .6rem 0 .65rem; color: var(--pp-navy); font-family: var(--serif); font-size: clamp(2rem, 4vw, 3.4rem); line-height: 1; }
.practice-proof-case-header p { max-width: 820px; margin-bottom: 0; color: var(--pp-muted); line-height: 1.7; }
.practice-proof-role-badge { min-width: 130px; padding: 1rem; align-self: start; border: 1px solid var(--pp-line); border-radius: 8px; text-align: center; }
.practice-proof-role-badge span { display: block; color: var(--pp-muted); font-size: .58rem; font-weight: 900; text-transform: uppercase; }
.practice-proof-role-badge strong { display: block; margin-top: .35rem; color: var(--pp-burgundy); font-family: var(--serif); font-size: 1.25rem; }
.practice-proof-timeline { padding: 1.6rem 2rem; display: grid; grid-template-columns: repeat(4, 1fr); gap: .8rem; border-bottom: 1px solid var(--pp-line); background: #f6f2e9; }
.practice-proof-timeline article { position: relative; min-width: 0; padding: 1rem; border-left: 3px solid var(--pp-teal); background: #fff; }
.practice-proof-timeline article::after { content: ''; position: absolute; right: -.5rem; top: 50%; width: .8rem; height: 1px; background: var(--pp-line); }
.practice-proof-timeline article:last-child::after { display: none; }
.practice-proof-timeline span { color: var(--pp-burgundy); font-size: .56rem; font-weight: 950; letter-spacing: .08em; }
.practice-proof-timeline strong { margin-top: .35rem; display: block; color: var(--pp-navy); font-size: .78rem; }
.practice-proof-timeline p { margin: .4rem 0 0; color: var(--pp-muted); font-size: .65rem; line-height: 1.45; }
.practice-proof-evidence-heading { padding: 1.7rem 2rem 1rem; display: grid; grid-template-columns: minmax(220px, .45fr) 1fr; gap: 2rem; align-items: end; }
.practice-proof-evidence-heading span { color: var(--pp-burgundy); font-size: .58rem; font-weight: 950; letter-spacing: .1em; }
.practice-proof-evidence-heading h4 { margin: .35rem 0 0; color: var(--pp-navy); font-family: var(--serif); font-size: 2rem; }
.practice-proof-evidence-heading p { margin-bottom: .25rem; color: var(--pp-muted); font-size: .75rem; line-height: 1.6; }
.practice-proof-evidence-grid { padding: 1rem 2rem 2rem; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1rem; }
.practice-proof-evidence-card { position: relative; min-width: 0; padding: 1.2rem; border: 1px solid var(--pp-line); border-radius: 9px; background: #fff; box-shadow: 0 10px 24px rgba(20,38,61,.06); }
.practice-proof-evidence-card::before { content: ''; position: absolute; left: 18px; top: -7px; width: 48px; height: 14px; background: rgba(214,166,79,.32); transform: rotate(-3deg); }
.practice-proof-evidence-card > span { color: var(--pp-burgundy); font-size: .57rem; font-weight: 950; letter-spacing: .08em; }
.practice-proof-evidence-card h5 { margin: .5rem 0 .45rem; color: var(--pp-navy); font-family: var(--serif); font-size: 1.08rem; }
.practice-proof-evidence-card p { color: var(--pp-muted); font-size: .72rem; line-height: 1.6; }
.practice-proof-classifiers { margin-top: .9rem; display: grid; grid-template-columns: repeat(3, 1fr); gap: .35rem; }
.practice-proof-classifiers button { padding: .52rem .35rem; border: 1px solid var(--pp-line); border-radius: 5px; color: #506071; background: #f6f3ed; font-size: .58rem; font-weight: 900; cursor: pointer; }
.practice-proof-classifiers button:hover { border-color: var(--pp-navy); }
.practice-proof-classifiers button.is-active[data-classification="record"] { border-color: var(--pp-teal); color: #fff; background: var(--pp-teal); }
.practice-proof-classifiers button.is-active[data-classification="question"] { border-color: var(--pp-burgundy); color: #fff; background: var(--pp-burgundy); }
.practice-proof-classifiers button.is-active[data-classification="context"] { border-color: var(--pp-blue); color: #fff; background: var(--pp-blue); }
.practice-proof-issues { margin: 0 2rem 2rem; padding: 1.35rem; border: 1px solid var(--pp-line); border-radius: 10px; background: #f4efe5; }
.practice-proof-issues-heading { display: flex; justify-content: space-between; gap: 1rem; align-items: baseline; }
.practice-proof-issues-heading span { color: var(--pp-burgundy); font-size: .58rem; font-weight: 950; letter-spacing: .08em; text-transform: uppercase; }
.practice-proof-issues-heading strong { color: var(--pp-navy); font-family: var(--serif); font-size: 1.05rem; }
.practice-proof-issue-list { margin-top: 1rem; display: grid; grid-template-columns: repeat(2, 1fr); gap: .55rem; }
.practice-proof-issue-list label { padding: .75rem; display: flex; gap: .65rem; align-items: flex-start; border: 1px solid transparent; border-radius: 7px; background: #fff; cursor: pointer; }
.practice-proof-issue-list label:has(input:checked) { border-color: var(--pp-teal); box-shadow: inset 3px 0 0 var(--pp-teal); }
.practice-proof-issue-list input { margin-top: .2rem; accent-color: var(--pp-teal); }
.practice-proof-issue-list span { color: #4f5d6c; font-size: .69rem; line-height: 1.45; }
.practice-proof-learning { background: #f4efe4; }
.practice-proof-learning-shell { margin-top: 3rem; display: grid; grid-template-columns: minmax(260px, 360px) minmax(0, 1fr); gap: 1.2rem; align-items: start; }
.practice-proof-learning-controls { padding: 1.4rem; border: 1px solid var(--pp-line); border-radius: 12px; background: #fff; box-shadow: 0 18px 40px rgba(20,38,61,.06); }
.practice-proof-learning-controls label { display: grid; gap: .45rem; margin-bottom: 1rem; }
.practice-proof-learning-controls label > span { color: var(--pp-burgundy); font-size: .6rem; font-weight: 950; letter-spacing: .08em; text-transform: uppercase; }
.practice-proof-learning-controls select { width: 100%; min-height: 48px; padding: .75rem; border: 1px solid var(--pp-line); border-radius: 7px; color: var(--pp-ink); background: #faf7f0; }
.practice-proof-learning-controls button { width: 100%; min-height: 49px; border: 0; border-radius: 7px; color: #fff; background: var(--pp-burgundy); font-size: .74rem; font-weight: 900; cursor: pointer; }
.practice-proof-learning-controls > p { margin: .75rem 0 0; color: var(--pp-muted); font-size: .62rem; text-align: center; }
.practice-proof-learning-path { overflow: hidden; border-radius: 13px; color: var(--pp-ink); background: #fff; box-shadow: 0 22px 55px rgba(20,38,61,.09); }
.practice-proof-path-topline { padding: .85rem 1.2rem; display: flex; justify-content: space-between; gap: 1rem; color: #fff; background: var(--pp-burgundy); font-size: .62rem; font-weight: 950; letter-spacing: .08em; }
.practice-proof-path-steps { padding: 1.4rem; display: grid; grid-template-columns: repeat(5, 1fr); gap: .7rem; }
.practice-proof-path-steps article { min-width: 0; padding: 1rem; border-radius: 9px; background: #f7f3eb; }
.practice-proof-path-steps article:nth-child(2) { background: #e5f1ee; }
.practice-proof-path-steps article:nth-child(3) { background: #edf0f8; }
.practice-proof-path-steps article:nth-child(4) { background: #fae9e4; }
.practice-proof-path-steps article:nth-child(5) { background: #fbf1d7; }
.practice-proof-path-steps article > span { color: var(--pp-burgundy); font-family: var(--serif); font-size: 1.7rem; }
.practice-proof-path-steps strong { display: block; margin: 1rem 0 .55rem; color: var(--pp-navy); }
.practice-proof-path-steps p { margin-bottom: 0; color: var(--pp-muted); font-size: .68rem; line-height: 1.55; }
.practice-proof-path-question { margin: 0 1.4rem 1.4rem; padding: 1.2rem; border-left: 5px solid var(--pp-gold); background: var(--pp-navy); color: #fff; }
.practice-proof-path-question span { color: #f1c875; font-size: .59rem; font-weight: 950; letter-spacing: .09em; text-transform: uppercase; }
.practice-proof-path-question blockquote { margin: .75rem 0 0; font-family: var(--serif); font-size: clamp(1.15rem, 2vw, 1.55rem); line-height: 1.35; }
.practice-proof-briefing { background: linear-gradient(135deg, var(--pp-navy), var(--pp-navy-deep)); }
.practice-proof-brief-shell { margin-top: 3rem; display: grid; grid-template-columns: minmax(0, 1fr) minmax(250px, 330px); gap: 1.2rem; align-items: start; }
.practice-proof-memo { color: var(--pp-ink); background: #fffdf7; box-shadow: 0 30px 70px rgba(0,0,0,.24); }
.practice-proof-memo-header { padding: 1.2rem 1.5rem; display: flex; justify-content: space-between; gap: 1rem; align-items: center; border-bottom: 5px solid var(--pp-burgundy); }
.practice-proof-memo-header div { display: grid; }
.practice-proof-memo-header span { color: var(--pp-burgundy); font-size: .59rem; font-weight: 950; letter-spacing: .1em; }
.practice-proof-memo-header strong { margin-top: .3rem; color: var(--pp-navy); font-family: var(--serif); font-size: 1.05rem; }
.practice-proof-memo-header > b { color: var(--pp-muted); font-size: .67rem; }
.practice-proof-memo dl { margin: 0; padding: 1.4rem; display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: var(--pp-line); }
.practice-proof-memo dl div { padding: 1rem; background: #fff; }
.practice-proof-memo dt { color: var(--pp-muted); font-size: .57rem; font-weight: 900; letter-spacing: .07em; text-transform: uppercase; }
.practice-proof-memo dd { margin: .45rem 0 0; color: var(--pp-navy); font-family: var(--serif); font-size: 1.1rem; }
.practice-proof-memo-summary,
.practice-proof-memo-next { padding: 1.35rem 1.5rem; border-top: 1px solid var(--pp-line); }
.practice-proof-memo-summary span,
.practice-proof-memo-next span { color: var(--pp-burgundy); font-size: .59rem; font-weight: 950; letter-spacing: .08em; text-transform: uppercase; }
.practice-proof-memo-summary p,
.practice-proof-memo-next p { margin: .65rem 0 0; color: #4f5c6c; line-height: 1.7; }
.practice-proof-memo footer { padding: .85rem 1.5rem; display: flex; justify-content: space-between; gap: 1rem; color: #fff; background: var(--pp-navy); font-size: .59rem; letter-spacing: .06em; }
.practice-proof-memo footer strong { color: #f1c875; }
.practice-proof-brief-actions { padding: 1.3rem; border: 1px solid rgba(255,255,255,.14); border-radius: 11px; background: rgba(255,255,255,.055); }
.practice-proof-brief-actions > span { color: #f1c875; font-size: .61rem; font-weight: 950; letter-spacing: .09em; text-transform: uppercase; }
.practice-proof-brief-actions > button { width: 100%; min-height: 46px; margin-top: .75rem; border: 1px solid rgba(255,255,255,.18); border-radius: 7px; color: #fff; background: transparent; font-size: .7rem; font-weight: 900; cursor: pointer; }
.practice-proof-brief-actions > button:hover { border-color: #f1c875; background: rgba(241,200,117,.08); }
.practice-proof-brief-actions > p { margin: .75rem 0 0; color: #b9c5cf; font-size: .64rem; line-height: 1.5; }
.practice-proof-real-help { margin-top: 1.2rem; padding: 1rem; border-radius: 8px; color: var(--pp-ink); background: #f4dfaa; }
.practice-proof-real-help strong { color: var(--pp-burgundy); }
.practice-proof-real-help p { margin: .45rem 0 .7rem; color: #4f5d6c; font-size: .68rem; line-height: 1.5; }
.practice-proof-real-help a { color: var(--pp-burgundy); font-size: .67rem; font-weight: 900; }
.practice-proof-notes { background: #fffdf7; }
.practice-proof-notes > header p:last-child { color: var(--pp-muted); line-height: 1.75; }
.practice-proof-reference-grid { margin-top: 3rem; display: grid; gap: .8rem; }
.practice-proof-reference-grid > a { padding: 1.25rem; display: grid; grid-template-columns: auto 1fr auto; gap: 1.2rem; align-items: start; border: 1px solid var(--pp-line); border-radius: 10px; color: var(--pp-ink); background: #fff; text-decoration: none; }
.practice-proof-reference-grid > a:hover { transform: translateY(-2px); border-color: rgba(138,39,56,.42); box-shadow: 0 16px 32px rgba(20,38,61,.08); }
.practice-proof-reference-grid > a > span { color: var(--pp-burgundy); font-family: var(--serif); font-size: 1.8rem; }
.practice-proof-reference-grid strong { color: var(--pp-navy); font-family: var(--serif); font-size: 1.25rem; }
.practice-proof-reference-grid p { margin: .45rem 0 0; color: var(--pp-muted); line-height: 1.65; }
.practice-proof-reference-grid i { color: var(--pp-burgundy); font-style: normal; }
.practice-proof-method-note { margin-top: 2rem; padding: 1.5rem; border-left: 6px solid var(--pp-gold); color: #fff; background: var(--pp-navy); }
.practice-proof-method-note > span { color: #f1c875; font-size: .59rem; font-weight: 950; letter-spacing: .09em; text-transform: uppercase; }
.practice-proof-method-note blockquote { margin: .8rem 0; font-family: var(--serif); font-size: clamp(1.15rem, 2vw, 1.6rem); }
.practice-proof-method-note p { margin-bottom: 0; color: #c8d1da; line-height: 1.7; }
.practice-proof-public-vote,
.practice-proof-exit { padding: 2.2rem max(1.2rem, calc((100vw - 1420px) / 2 + 1.5rem)); }
.practice-proof-public-vote { display: grid; grid-template-columns: 1fr auto; gap: 2rem; align-items: center; color: #fff; background: var(--pp-burgundy); }
.practice-proof-public-vote h2 { margin-bottom: .55rem; font-family: var(--serif); font-size: clamp(1.8rem, 3.4vw, 3rem); }
.practice-proof-public-vote p { margin-bottom: 0; color: #f3dfe3; }
.practice-proof-public-vote .practice-proof-eyebrow { color: #f1c875; }
.practice-proof-public-vote .website-demo-vote { justify-content: flex-end; }
.practice-proof-public-vote .website-demo-vote-button { border-color: #fff; color: var(--pp-burgundy); background: #fff; }
.practice-proof-public-vote .website-demo-vote-total { color: #fff; }
.practice-proof-exit { display: flex; justify-content: space-between; gap: 1rem; background: var(--pp-navy-deep); }
.practice-proof-exit a { color: #fff; font-size: .75rem; font-weight: 850; text-decoration: none; }
.practice-proof-exit a:hover { color: #f1c875; }
.practice-proof-demo [data-reveal] { opacity: 0; transform: translateY(20px); transition: opacity .65s ease, transform .65s ease; }
.practice-proof-demo [data-reveal].is-visible { opacity: 1; transform: none; }
@media (max-width: 1120px) {
    .practice-proof-masthead { grid-template-columns: 1fr auto; }
    .practice-proof-masthead nav { grid-column: 1 / -1; grid-row: 2; justify-content: flex-start; overflow-x: auto; padding-bottom: .2rem; }
    .practice-proof-hero { grid-template-columns: 1fr; }
    .practice-proof-hero-board { max-width: 700px; width: 100%; margin-inline: auto; }
    .practice-proof-brief { grid-template-columns: 1fr 2fr; }
    .practice-proof-brief ol { grid-column: 1 / -1; grid-row: 2; grid-template-columns: repeat(3, 1fr); }
    .practice-proof-brief p { grid-column: 1 / -1; }
    .practice-proof-path-steps { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 900px) {
    .practice-proof-intro-grid { grid-template-columns: 1fr; }
    .practice-proof-section-heading { grid-template-columns: 1fr; gap: 1rem; }
    .practice-proof-lab-shell,
    .practice-proof-learning-shell,
    .practice-proof-brief-shell { grid-template-columns: 1fr; }
    .practice-proof-controls { position: static; }
    .practice-proof-case-picker { grid-template-columns: repeat(2, 1fr); }
    .practice-proof-lens-picker { grid-template-columns: repeat(3, 1fr); }
    .practice-proof-timeline { grid-template-columns: repeat(2, 1fr); }
    .practice-proof-path-steps { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 680px) {
    .practice-proof-masthead { min-height: auto; grid-template-columns: 1fr; gap: .8rem; }
    .practice-proof-back { display: none; }
    .practice-proof-masthead nav { grid-column: 1; grid-row: auto; gap: 1rem; }
    .practice-proof-brand small { display: none; }
    .practice-proof-hero { min-height: 0; padding-top: 4rem; }
    .practice-proof-hero-copy h1 { font-size: clamp(3rem, 16vw, 4.6rem); }
    .practice-proof-hero-board { min-height: 430px; }
    .practice-proof-folder.folder-front { width: 84%; right: 0; }
    .practice-proof-folder.folder-back { width: 75%; left: 0; }
    .practice-proof-note { width: 175px; min-height: 95px; padding: .85rem; }
    .practice-proof-note.note-one { left: -2%; bottom: 0; }
    .practice-proof-note.note-two { right: -1%; }
    .practice-proof-brief { grid-template-columns: 1fr; }
    .practice-proof-brief ol { grid-template-columns: 1fr; grid-column: 1; }
    .practice-proof-brief p { grid-column: 1; }
    .practice-proof-case-picker,
    .practice-proof-lens-picker,
    .practice-proof-timeline,
    .practice-proof-evidence-grid,
    .practice-proof-issue-list,
    .practice-proof-path-steps,
    .practice-proof-memo dl { grid-template-columns: 1fr; }
    .practice-proof-case-header,
    .practice-proof-evidence-heading { grid-template-columns: 1fr; }
    .practice-proof-role-badge { text-align: left; }
    .practice-proof-timeline article::after { display: none; }
    .practice-proof-evidence-grid { padding-inline: 1rem; }
    .practice-proof-evidence-heading { padding-inline: 1rem; }
    .practice-proof-issues { margin-inline: 1rem; }
    .practice-proof-public-vote { grid-template-columns: 1fr; }
    .practice-proof-public-vote .website-demo-vote { justify-content: flex-start; }
    .practice-proof-exit { flex-direction: column; }
    .practice-proof-memo footer { flex-direction: column; }
}
@media (prefers-reduced-motion: reduce) {
    .practice-proof-demo [data-reveal] { opacity: 1; transform: none; transition: none; }
    .practice-proof-primary:hover,
    .practice-proof-reference-grid > a:hover { transform: none; }
}