/* ==========================================================================
   /how-to-remember-podcasts-and-audiobooks/
   Waveform-to-idea-cards illustration, the listening-day timeline, the study
   bars, the 2-minute recap timer and a few small layouts. Built on site.css
   tokens, the .tool shell in tools.css and the shared pieces in article.css
   (.anim-foot, .sources, .app-card). Every page class is prefixed pa-.
   ========================================================================== */

.pa-wave-top svg, .pa-said svg, .pa-day svg, .pa-recap svg { fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }

/* ---------- Signature illustration: waveform, pause, said out loud, three cards ---------- */

.pa-wave {
    --mark: 71.875%;
    background: var(--surface); border: 1px solid var(--line-strong); border-radius: var(--radius-lg);
    padding: clamp(18px, 2.2vw, 22px) clamp(18px, 3vw, 28px) clamp(16px, 1.8vw, 18px);
}
.pa-wave-top { display: flex; justify-content: space-between; gap: 12px; font-size: 13px; font-weight: 600; color: var(--text-3); line-height: 1.3; }
.pa-wave-time { font-variant-numeric: tabular-nums; color: var(--text-2); }
.pa-wave-track { position: relative; height: 72px; margin-top: 12px; }
.pa-wave-svg { display: block; width: 100%; height: 100%; overflow: visible; }
.pa-wave-svg rect { stroke: none; }
.pa-wave-head { stroke: var(--text); stroke-width: 2; vector-effect: non-scaling-stroke; opacity: 0; transition: opacity 0.4s ease; }
.pa-wave.is-playing .pa-wave-head { opacity: 0.85; }

.pa-wave-mark { position: absolute; left: var(--mark); top: -6px; bottom: -6px; border-left: 1.5px dashed rgba(255, 255, 255, 0.28); }
.pa-wave-mark i {
    position: absolute; top: 100%; left: 0; transform: translateX(-50%); margin-top: 6px;
    font-style: normal; font-size: 12px; font-weight: 600; line-height: 16px; letter-spacing: 0.04em; text-transform: uppercase;
    color: var(--text-3); white-space: nowrap; transition: color 0.4s ease;
}
.pa-wave.is-paused .pa-wave-mark i, .pa-wave:not(.is-armed) .pa-wave-mark i { color: var(--text); }

.pa-wave-pause {
    position: absolute; left: var(--mark); top: 50%; width: 36px; height: 36px; margin: -18px 0 0 -18px;
    border-radius: 50%; background: var(--text);
    display: flex; align-items: center; justify-content: center; gap: 5px;
    transform: scale(0.4); opacity: 0;
    transition: transform 0.5s var(--ease), opacity 0.3s ease;
}
.pa-wave-pause::before, .pa-wave-pause::after { content: ''; width: 4px; height: 13px; border-radius: 2px; background: #000; }
.pa-wave.is-paused .pa-wave-pause, .pa-wave:not(.is-armed) .pa-wave-pause { transform: none; opacity: 1; }

/* "Said out loud" shares the line with the chapter label on wide screens */
.prose .pa-said {
    display: flex; align-items: center; gap: 6px; margin: 11px 0 0;
    font-size: 12px; font-weight: 600; line-height: 16px; letter-spacing: 0.04em; text-transform: uppercase;
    color: var(--pink); transition: color 0.4s ease;
}
.pa-said svg { width: 16px; height: 16px; flex-shrink: 0; }
.pa-wave.is-armed:not(.is-speaking) .pa-said { color: var(--text-3); }

/* Idea cards: faint empty slots from the start, filled one by one as the words are said */
.prose .pa-cards { list-style: none; padding: 0; margin: 10px 0 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; }
.prose .pa-cards li + li { margin-top: 0; }
.pa-cards li {
    --c: var(--violet);
    background: var(--surface-2); border: 1px dashed transparent; border-radius: 14px;
    box-shadow: inset 0 0 0 1px var(--line);
    padding: 11px 14px 12px; line-height: 1.3;
    transition: background-color 0.5s var(--ease), box-shadow 0.5s var(--ease), border-color 0.5s ease;
}
.pa-cards li:nth-child(2) { --c: var(--orange); }
.pa-cards li:nth-child(3) { --c: var(--cyan); }
.pa-cards b { display: block; font-size: 12px; font-weight: 600; letter-spacing: 0.06em; text-transform: uppercase; color: var(--c); margin-bottom: 5px; transition: color 0.5s ease; }
.pa-cards span { display: block; font-size: 16px; font-weight: 600; letter-spacing: -0.01em; color: var(--text); transition: opacity 0.6s var(--ease), transform 0.6s var(--ease); }
.pa-wave.is-armed .pa-cards li:not(.is-on) { background: transparent; border-color: rgba(255, 255, 255, 0.14); box-shadow: inset 0 0 0 1px transparent; }
.pa-wave.is-armed .pa-cards li:not(.is-on) b { color: var(--text-3); }
.pa-wave.is-armed .pa-cards li:not(.is-on) span { opacity: 0; transform: translateY(4px); }

.pa-wave .anim-foot { margin-top: 12px; }

/* ---------- Why listening slips ---------- */

.prose .pa-why { list-style: none; padding: 0; display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.prose .pa-why li + li { margin-top: 0; }
.pa-why li { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 20px 22px; }
.pa-why b { display: block; color: var(--text); font-size: 18px; letter-spacing: -0.015em; }
.pa-why p { margin-top: 6px; font-size: 16px; line-height: 1.55; color: var(--text-2); }

/* ---------- The listening day timeline ---------- */

.prose .pa-day { list-style: none; padding: 0; position: relative; }
.pa-day::before {
    content: ''; position: absolute; left: 141px; top: 22px; bottom: 40px; width: 2px; border-radius: 1px;
    background: linear-gradient(180deg, var(--violet), var(--pink) 25%, var(--orange) 50%, var(--green) 75%, var(--cyan));
    opacity: 0.6; transform-origin: top;
}
.pa-day li { position: relative; display: grid; grid-template-columns: 112px 44px 1fr; gap: 0 18px; align-items: start; }
.prose .pa-day li + li { margin-top: 26px; }
.pa-day-time { padding-top: 11px; text-align: right; font-size: 14px; font-weight: 600; line-height: 1.3; color: var(--c); font-variant-numeric: tabular-nums; }
.pa-day-icon {
    width: 44px; height: 44px; border-radius: 50%; display: grid; place-items: center;
    background: var(--bg); border: 1.5px solid var(--c); color: var(--c); position: relative;
}
.pa-day-icon svg { width: 22px; height: 22px; }
.pa-day-body { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 18px 22px 20px; }
.prose .pa-day h3 { margin: 0 0 6px; font-size: 19px; }
.pa-day-body p { font-size: 16px; line-height: 1.55; color: var(--text-2); }

.pa-day.is-armed::before { transform: scaleY(0); transition: transform 1.6s var(--ease); }
.pa-day.is-armed li { opacity: 0; transform: translateY(14px); transition: opacity 0.6s var(--ease), transform 0.7s var(--ease); }
.pa-day.is-armed li:nth-child(2) { transition-delay: 0.25s; }
.pa-day.is-armed li:nth-child(3) { transition-delay: 0.5s; }
.pa-day.is-armed li:nth-child(4) { transition-delay: 0.75s; }
.pa-day.is-armed li:nth-child(5) { transition-delay: 1s; }
.pa-day.is-in::before { transform: none; }
.pa-day.is-in li { opacity: 1; transform: none; }

/* Time-of-day marker above the sections that follow the day */
.prose .pa-at {
    display: flex; align-items: center; gap: 8px; margin-top: 76px;
    font-size: 13px; font-weight: 600; letter-spacing: 0.06em; text-transform: uppercase; line-height: 1.3; color: var(--c);
    font-variant-numeric: tabular-nums;
}
.pa-at::before { content: ''; flex-shrink: 0; width: 10px; height: 10px; border-radius: 50%; border: 2px solid var(--c); box-sizing: border-box; }
.prose .pa-at + h2 { margin-top: 8px; }

/* ---------- Study result bars: a true 0 to 100% scale, flat colors ---------- */

.pa-study { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 22px 24px; }
.pa-study-label { display: block; font-size: 12px; font-weight: 600; letter-spacing: 0.06em; text-transform: uppercase; color: var(--text-3); margin-bottom: 10px; }
.pa-study p { font-size: 17px; color: var(--text-2); }
.prose .pa-bars { display: grid; gap: 12px; margin: 20px 0 16px; }
.pa-bar, .pa-scale { display: grid; grid-template-columns: 1fr 48px; gap: 5px 12px; align-items: center; }
.pa-bar span { grid-column: 1 / -1; font-size: 14px; line-height: 1.35; color: var(--text-2); }
.pa-bar i {
    position: relative; height: 12px; border-radius: 3px; overflow: hidden;
    background: linear-gradient(90deg, rgba(255, 255, 255, 0.1) 1px, transparent 1px) 0 0 / 25% 100% var(--surface-2);
    box-shadow: inset -1px 0 0 rgba(255, 255, 255, 0.1);
}
.pa-bar i::after {
    content: ''; position: absolute; inset: 0 auto 0 0; width: var(--v); border-radius: 0 3px 3px 0;
    background: #8e8e96; transform-origin: left; transition: transform 1s var(--ease);
}
.pa-bar.is-us i::after { background: var(--pink); }
.pa-bar b { font-size: 18px; font-weight: 700; letter-spacing: -0.02em; color: var(--text); font-variant-numeric: tabular-nums; text-align: right; line-height: 1; }
.pa-bar.is-us b { color: var(--pink); }
.pa-scale > div { position: relative; height: 14px; font-size: 12px; line-height: 14px; color: var(--text-3); font-variant-numeric: tabular-nums; }
.pa-scale span { position: absolute; top: 0; left: var(--x, 0); transform: translateX(-50%); }
.pa-scale span:first-child { transform: none; }
.pa-scale span:last-child { left: auto; right: 0; transform: none; }
.pa-bars.is-armed i::after { transform: scaleX(0); }
.pa-bars.is-armed .pa-bar:nth-child(2) i::after { transition-delay: 0.12s; }
.pa-bars.is-armed .pa-bar:nth-child(3) i::after { transition-delay: 0.24s; }
.pa-bars.is-in i::after { transform: none; }
.prose .pa-study-note { font-size: 14px; color: var(--text-3); line-height: 1.5; }

/* ---------- Example recap ---------- */

.pa-example { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 8px 22px; }
.pa-example p { display: grid; grid-template-columns: 96px 1fr; gap: 14px; padding: 12px 0; font-size: 17px; line-height: 1.5; color: var(--text); }
.pa-example p + p { border-top: 1px solid var(--line); }
.pa-example span { padding-top: 3px; font-size: 12px; font-weight: 600; letter-spacing: 0.06em; text-transform: uppercase; color: var(--violet); }
.pa-example p:nth-child(2) span { color: var(--orange); }
.pa-example p:nth-child(3) span { color: var(--cyan); }

/* ---------- Recap timer ---------- */

.pa-recap { scroll-margin-top: 90px; }
.pa-recap-head { display: flex; justify-content: space-between; align-items: baseline; gap: 12px; }
.pa-recap-title { font-size: 20px; font-weight: 700; letter-spacing: -0.02em; }
.pa-recap-clock { font-size: 32px; font-weight: 700; letter-spacing: -0.03em; font-variant-numeric: tabular-nums; line-height: 1; }
.pa-recap.is-over .pa-recap-clock { color: var(--orange); }
.pa-recap-bar { height: 6px; border-radius: 3px; background: var(--surface-2); margin: 14px 0 20px; overflow: hidden; }
.pa-recap-bar i { display: block; height: 100%; border-radius: 3px; background: var(--orange); transform-origin: left; transition: transform 0.3s linear; }
.pa-recap-label { display: flex; gap: 8px; align-items: baseline; font-size: 14px; font-weight: 600; color: var(--text-2); margin-bottom: 8px; }
.pa-recap-label small { font-weight: 400; color: var(--text-3); }
.pa-recap-prompts li { margin-top: 18px; }
.pa-recap-prompts label { display: flex; gap: 10px; align-items: center; font-size: 16px; font-weight: 600; color: var(--text); margin-bottom: 8px; line-height: 1.35; }
.pa-recap-prompts label b {
    flex-shrink: 0; width: 26px; height: 26px; border-radius: 50%; display: grid; place-items: center;
    background: var(--text); color: #000; font-size: 13px;
}
.pa-recap-text { height: auto; min-height: 72px; padding: 12px 14px; line-height: 1.5; resize: vertical; }
.pa-recap-prompts li { animation: pa-in 0.5s var(--ease); }
@keyframes pa-in { from { opacity: 0; transform: translateY(8px); } }
.pa-recap-status { margin-top: 14px; font-size: 14px; color: var(--text-2); min-height: 1.45em; }
.pa-recap-out { margin-top: 22px; padding-top: 20px; border-top: 1px solid var(--line); }
.pa-recap-pre {
    font-family: ui-monospace, 'SF Mono', Menlo, Consolas, monospace; font-size: 14px; line-height: 1.65; white-space: pre-wrap; word-break: break-word;
    background: var(--surface-2); border: 1px solid var(--line); border-radius: 14px; padding: 16px 18px; color: var(--text);
}
.pa-recap-pre:focus-visible { outline: 2px solid var(--blue); outline-offset: 2px; }

/* ---------- Keep / let go ---------- */

.pa-keep { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.pa-keep-col { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 20px 22px; }
.pa-keep-col.is-keep { background: rgba(127, 210, 124, 0.06); border-color: rgba(127, 210, 124, 0.3); }
.pa-keep-head { font-size: 12px; font-weight: 600; letter-spacing: 0.06em; text-transform: uppercase; color: var(--text-3); margin-bottom: 10px; }
.is-keep .pa-keep-head { color: var(--green); }
.prose .pa-keep ul { list-style: none; padding: 0; }
.pa-keep li { position: relative; padding-left: 22px; font-size: 16px; line-height: 1.5; color: var(--text-2); }
.prose .pa-keep li + li { margin-top: 8px; }
.pa-keep li::before { content: ''; position: absolute; left: 2px; top: 10px; width: 10px; height: 2px; border-radius: 1px; background: var(--text-3); }
.is-keep li { color: var(--text); }
.is-keep li::before { top: 6px; left: 3px; width: 5px; height: 9px; background: none; border: solid var(--green); border-width: 0 2px 2px 0; border-radius: 0; transform: rotate(45deg); }

/* ---------- Speed scale ---------- */

.prose .pa-speed { list-style: none; padding: 0; display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; }
.prose .pa-speed li + li { margin-top: 0; }
.pa-speed li { text-align: center; padding: 14px 8px; border-radius: 16px; background: var(--surface); border: 1px solid var(--line); }
.pa-speed b { display: block; font-size: 24px; font-weight: 700; letter-spacing: -0.03em; color: var(--text); }
.pa-speed span { display: block; margin-top: 2px; font-size: 13px; line-height: 1.3; color: var(--text-3); }
.pa-speed .is-ok { border-color: rgba(127, 210, 124, 0.28); }
.pa-speed .is-bad { border-color: rgba(255, 162, 51, 0.4); background: rgba(255, 162, 51, 0.06); }
.pa-speed .is-bad b, .pa-speed .is-bad span { color: var(--orange); }

/* ---------- Formats ---------- */

.pa-formats { display: grid; gap: 12px; }
.pa-formats section { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 20px 22px; }
.prose .pa-formats h3 { margin: 0 0 6px; font-size: 19px; display: flex; align-items: center; gap: 10px; }
.pa-formats h3::before { content: ''; width: 10px; height: 10px; border-radius: 50%; background: var(--violet); }
.pa-formats section:nth-child(2) h3::before { background: var(--orange); }
.pa-formats section:nth-child(3) h3::before { background: var(--cyan); }
.pa-formats p { font-size: 16px; line-height: 1.55; color: var(--text-2); }

.pa-tools tbody th { width: 22%; }

/* ---------- Where Prismo fits: text + drawn question card ---------- */

.pa-fit { display: grid; grid-template-columns: 1fr 320px; gap: 28px; align-items: center; }
.prose .pa-fit p + p { margin-top: 1.1em; }
.pa-fit .app-card { width: 100%; }

/* ---------- Small screens ---------- */

@media (max-width: 760px) {
    .pa-fit { grid-template-columns: 1fr; gap: 20px; }
}
@media (max-width: 640px) {
    .pa-wave-track { height: 64px; }
    .pa-wave-pause { width: 32px; height: 32px; margin: -16px 0 0 -16px; }
    .prose .pa-said { margin-top: 36px; }
    .prose .pa-cards { grid-template-columns: 1fr; gap: 8px; }
    .pa-cards li { display: grid; grid-template-columns: 78px 1fr; gap: 10px; align-items: baseline; padding: 11px 14px 11px 16px; }
    .pa-cards b { margin: 0; font-size: 11px; }
    .pa-cards span { font-size: 15px; }
    .prose .pa-why, .pa-keep { grid-template-columns: 1fr; }
    .pa-day::before { left: 21px; top: 22px; }
    .pa-day li { grid-template-columns: 44px 1fr; gap: 6px 14px; }
    .pa-day-icon { grid-row: 1 / span 2; }
    .pa-day-time { grid-column: 2; padding-top: 0; text-align: left; align-self: end; }
    .pa-day-body { grid-column: 2; padding: 16px 18px; }
    .prose .pa-at { margin-top: 64px; }
    .pa-study { padding: 20px; }
    .pa-example { padding: 6px 18px; }
    .pa-example p { grid-template-columns: 1fr; gap: 2px; }
    .pa-speed b { font-size: 20px; }
    .pa-speed span { font-size: 12px; }
    .pa-recap-clock { font-size: 28px; }
}

@media (prefers-reduced-motion: reduce) {
    .pa-wave *, .pa-day, .pa-day::before, .pa-day li, .pa-bars i::after, .pa-recap * { transition: none !important; animation: none !important; }
}