/* Predictions vs Reality. Classes start with pd-. */
.pd { --accent: #c6ff6a; --v-r: #a6ff6a; --v-p: #ffb547; --v-w: #ff5a5f; --forecast: #ffb547; }
.pd-sec { --accent: #c6ff6a; }
#y1900 { --accent: var(--amber); }
#y1964 { --accent: var(--cyan); }
#gap { --accent: var(--magenta); }
#curves { --accent: var(--amber); }
#never { --accent: var(--red); }

/* verdict stamp: icon + word, never colour alone */
.pd-v { display: inline-flex; align-items: center; gap: 6px; font-family: var(--f-mono); font-size: 11px; letter-spacing: .08em; text-transform: uppercase; white-space: nowrap; color: var(--ink); }
.pd-v::before { font-size: 13px; line-height: 1; }
.pd-v--r::before { content: "\2713"; color: var(--v-r); }
.pd-v--p::before { content: "\25D0"; color: var(--v-p); }
.pd-v--w::before { content: "\2717"; color: var(--v-w); }

/* scoreboard */
.pd-board { display: grid; gap: 22px; margin: 0 0 28px; }
.pd-row__head { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 4px 16px; margin-bottom: 8px; font-size: var(--step--1); color: var(--ink-2); }
.pd-row__head b { color: var(--ink); font-weight: 500; }
.pd-row__sum { font-family: var(--f-mono); font-variant-numeric: tabular-nums; }
.pd-cells { display: flex; flex-wrap: wrap; gap: 4px; }
.pd-cell { display: block; width: 18px; height: 18px; border-radius: 4px; padding: 0; border: 0; cursor: pointer; background: var(--c); position: relative; transition: transform .2s var(--ease-out); }
.pd-cell[data-v="r"] { --c: var(--v-r); }
.pd-cell[data-v="p"] { --c: var(--v-p); background-image: repeating-linear-gradient(45deg, rgba(0,0,0,.34) 0 2px, transparent 2px 5px); }
.pd-cell[data-v="w"] { --c: var(--v-w); background-image: linear-gradient(135deg, transparent 44%, rgba(0,0,0,.5) 44% 56%, transparent 56%); }
.pd-cell:hover, .pd-cell:focus-visible { transform: scale(1.35); outline: 2px solid var(--ink); outline-offset: 1px; z-index: 2; }
.pd-key { display: flex; flex-wrap: wrap; gap: 8px 22px; font-size: var(--step--1); color: var(--ink-2); margin: 0 0 12px; align-items: center; }
.pd-key span { display: inline-flex; align-items: center; gap: 8px; }
.pd-key .pd-cell { cursor: default; width: 14px; height: 14px; }
.pd-key .pd-cell:hover { transform: none; outline: 0; }
.pd-peek { min-height: 3.4em; font-size: var(--step--1); color: var(--ink-2); margin: 0 0 40px; max-width: 70ch; }
.pd-peek b { color: var(--ink); font-weight: 500; }

.pd-two { display: grid; grid-template-columns: 1.1fr 1fr; gap: 20px; align-items: start; }
.pd-rule { display: grid; grid-template-columns: 92px 1fr; gap: 12px; padding: 10px 0; border-top: 1px dashed var(--line); font-size: var(--step--1); color: var(--ink-2); }
.pd-rule:first-of-type { border-top: 0; }
.pd-small { font-size: var(--step--1); color: var(--ink-2); }

/* videophone steps */
.pd-steps { list-style: none; margin: 0; padding: 0; display: grid; gap: 0; font-size: var(--step--1); color: var(--ink-2); }
.pd-steps li { display: grid; grid-template-columns: 52px 1fr; gap: 12px; padding: 7px 0; border-top: 1px dashed var(--line); }
.pd-steps li:first-child { border-top: 0; }
.pd-steps b { font-family: var(--f-mono); color: var(--ink); font-weight: 600; }

/* filter row */
.pd-bar { display: flex; flex-wrap: wrap; gap: 8px; margin: 0 0 18px; align-items: center; }
.pd-btn { background: rgba(0,0,0,.3); border: 1px solid var(--line); color: var(--ink-2); border-radius: 999px; padding: 6px 12px; min-height: 34px; font-family: var(--f-mono); font-size: 12px; cursor: pointer; transition: color .2s, border-color .2s; }
.pd-btn:hover { color: var(--ink); border-color: var(--line-strong); }
.pd-btn[aria-pressed="true"] { color: var(--ink); border-color: var(--accent); box-shadow: inset 0 0 0 1px var(--accent); }

/* score bar for a set */
.pd-score { display: flex; height: 14px; gap: 2px; margin: 0 0 8px; max-width: 620px; }
.pd-score i { display: block; height: 100%; border-radius: 3px; width: 0; transition: width 1.2s var(--ease-out); }
.pd-score i[data-v="r"] { background: var(--v-r); }
.pd-score i[data-v="p"] { background: var(--v-p); }
.pd-score i[data-v="w"] { background: var(--v-w); }
.pd-scoreline { font-family: var(--f-mono); font-size: var(--step--1); color: var(--ink-2); margin: 0 0 26px; }
.pd-scoreline b { color: var(--ink); font-weight: 600; }

/* ledger rows */
.pd-ledger { columns: 2; column-gap: 28px; }
.pd-item { break-inside: avoid; border-top: 1px solid var(--line); scroll-margin-top: 80px; }
.pd-item[hidden] { display: none; }
.pd-item > summary { list-style: none; cursor: pointer; display: grid; grid-template-columns: 1fr auto; gap: 14px; align-items: start; padding: 11px 2px; }
.pd-item > summary::-webkit-details-marker { display: none; }
.pd-item > summary:hover .pd-item__t { color: var(--accent); }
.pd-item__t { font-size: var(--step--1); color: var(--ink); line-height: 1.4; transition: color .2s; }
.pd-item[open] .pd-item__t { color: var(--accent); }
.pd-item__b { padding: 0 2px 14px; font-size: var(--step--1); color: var(--ink-2); }
.pd-item__b p { margin: 0 0 8px; }
.pd-item__b b { color: var(--ink); font-weight: 500; }
.pd-src { font-family: var(--f-mono); font-size: 11px; color: var(--ink-3); line-height: 1.7; }
.pd-src a { color: var(--ink-2); }
.pd-flash { animation: pd-flash 1.6s var(--ease-out); }
@keyframes pd-flash { 0%, 40% { background: rgba(255,255,255,.1); } 100% { background: transparent; } }

/* the gap chart: one row per forecast on a shared time axis */
.pd-axis { height: 22px; margin-left: var(--pd-label); font-family: var(--f-mono); font-size: 11px; color: var(--ink-3); position: sticky; top: 0; z-index: 3; background: linear-gradient(var(--bg) 70%, transparent); }
.pd-axis span { position: absolute; transform: translateX(-50%); }
.pd-gaprows { --pd-label: 300px; }
.pd-gap { border-top: 1px solid var(--line); scroll-margin-top: 80px; }
.pd-gap[hidden] { display: none; }
.pd-gap > summary { list-style: none; cursor: pointer; display: grid; grid-template-columns: var(--pd-label) 1fr; align-items: center; min-height: 44px; }
.pd-gap > summary::-webkit-details-marker { display: none; }
.pd-gap__who { font-size: var(--step--1); color: var(--ink); line-height: 1.25; padding-right: 14px; display: flex; justify-content: space-between; gap: 10px; align-items: center; }
.pd-gap > summary:hover .pd-gap__who, .pd-gap[open] .pd-gap__who { color: var(--accent); }
.pd-track { position: relative; height: 28px; background-image: linear-gradient(var(--line), var(--line)); background-size: 100% 1px; background-position: 0 50%; background-repeat: no-repeat; }
.pd-track i { position: absolute; top: 50%; }
.pd-track .span { height: 2px; background: var(--ink-2); transform: translateY(-50%); transform-origin: left; }
.pd-track .said { width: 10px; height: 10px; margin: -5px 0 0 -5px; border-radius: 50%; border: 2px solid var(--ink); background: var(--bg); }
.pd-track .by { width: 2px; height: 16px; margin: -8px 0 0 -1px; background: var(--forecast); box-shadow: 0 0 0 2px var(--bg); }
.pd-track .real { width: 11px; height: 11px; margin: -5.5px 0 0 -5.5px; border-radius: 50%; background: var(--ink); box-shadow: 0 0 0 2px var(--bg); }
.pd-track .open { font-style: normal; transform: translateY(-50%); font-family: var(--f-mono); font-size: 13px; color: var(--ink-2); margin-left: 8px; line-height: 1; white-space: nowrap; }
.pd-track .open--l { margin: 0 12px 0 0; }
.pd-gapkey { display: flex; flex-wrap: wrap; gap: 8px 22px; font-size: var(--step--1); color: var(--ink-2); margin: 0 0 14px; align-items: center; }
.pd-gapkey span { display: inline-flex; gap: 8px; align-items: center; }
.pd-gapkey .pd-track { width: 22px; height: 16px; background: none; }
.pd-gap .pd-item__b { padding-left: var(--pd-label); max-width: calc(var(--pd-label) + 62ch); }

/* curves */
.pd-charts { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 20px; }
.pd-chart { min-width: 0; }
.pd-chart h3 { margin-bottom: 4px; }
.pd-chart__sub { font-size: var(--step--1); color: var(--ink-2); margin: 0 0 12px; }
.pd-chart svg { width: 100%; height: auto; overflow: visible; touch-action: pan-y; }
.pd-chart text { font-family: var(--f-mono); font-size: 11px; fill: var(--ink-3); }
.pd-chart .lab { fill: var(--ink); font-size: 11.5px; }
.pd-chart .grid { stroke: var(--line); stroke-width: 1; }
.pd-chart .line { fill: none; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.pd-chart .line--real { stroke: var(--ink); }
.pd-chart .line--dim { stroke: var(--ink-3); }
.pd-chart .line--fc { stroke: var(--forecast); stroke-dasharray: 5 5; }
.pd-chart .mark { fill: var(--forecast); stroke: var(--panel-solid); stroke-width: 2; }
.pd-chart .hair { stroke: var(--line-strong); stroke-width: 1; }
.pd-chart .dot { fill: var(--ink); stroke: var(--panel-solid); stroke-width: 2; }
.pd-chart .dot[cx="-10"], .pd-chart .hair[x1="-10"] { display: none; }
.pd-legend svg { width: 12px; height: 12px; flex: none; }
.pd-legend { display: flex; flex-wrap: wrap; gap: 4px 16px; font-size: 12px; color: var(--ink-2); margin: 8px 0 4px; }
.pd-legend span { display: inline-flex; align-items: center; gap: 7px; }
.pd-legend i { display: inline-block; width: 20px; height: 0; border-top: 2px solid var(--ink); }
.pd-legend i.fc { border-top: 2px dashed var(--forecast); }
.pd-legend i.dim { border-top-color: var(--ink-3); }
.pd-read { font-family: var(--f-mono); font-size: 12px; color: var(--ink-2); min-height: 1.6em; margin: 6px 0 0; }
.pd-chart__foot { font-size: 12px; color: var(--ink-3); margin: 8px 0 0; line-height: 1.5; }
.pd-chart details { margin-top: 8px; font-size: 12px; color: var(--ink-2); }
.pd-chart summary { cursor: pointer; font-family: var(--f-mono); }
.pd-chart table { border-collapse: collapse; width: 100%; font-family: var(--f-mono); margin-top: 6px; }
.pd-chart td, .pd-chart th { text-align: right; padding: 2px 8px; border-bottom: 1px dashed var(--line); font-weight: 400; }
.pd-chart td:first-child, .pd-chart th:first-child { text-align: left; }

/* never said */
.pd-never { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.pd-quote { font-family: var(--f-display); font-weight: 500; font-size: var(--step-0); line-height: 1.3; color: var(--ink); margin: 10px 0 8px; }
.pd-never__who { font-family: var(--f-mono); font-size: 12px; color: var(--ink-2); margin: 0 0 8px; }
.pd-never p.pd-small { margin: 0 0 8px; }

/* lessons + links */
.pd-lessons { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin: 0 0 24px; }
.pd-doors { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin: 0 0 24px; }
.pd-doors a { display: grid; gap: 6px; padding: 16px; border: 1px solid var(--line); border-radius: 14px; text-decoration: none; color: var(--ink-2); background: var(--panel); font-size: var(--step--1); line-height: 1.4; transition: border-color .3s; }
.pd-doors a:hover { border-color: var(--line-strong); }
.pd-doors b { color: var(--ink); font-family: var(--f-display); font-weight: 500; }

@media (max-width: 1040px) {
  .pd-never, .pd-lessons { grid-template-columns: repeat(2, 1fr); }
  .pd-doors { grid-template-columns: repeat(2, 1fr); }
  .pd-charts { grid-template-columns: 1fr; }
  .pd-gaprows { --pd-label: 220px; }
}
@media (max-width: 760px) {
  .pd-two, .pd-never, .pd-lessons, .pd-doors { grid-template-columns: 1fr; }
  .pd-ledger { columns: 1; }
  .pd-rule { grid-template-columns: 84px 1fr; }
  /* the gap chart stacks: name above its track */
  .pd-gaprows { --pd-label: 0px; }
  .pd-gap > summary { grid-template-columns: 1fr; padding: 8px 0 2px; }
  .pd-gap__who { padding-right: 0; }
  .pd-gap .pd-item__b { padding-left: 2px; max-width: none; }
}
@media (prefers-reduced-motion: reduce) { .pd-score i { transition: none; } }