/* concepts page: one loud thing (the money), everything else quiet */
.c-hero { padding: 64px 0 20px; }
.c-kicker { font-family: var(--sans); font-size: 15px; color: var(--ink-2); margin-bottom: 14px; }
.c-big {
  font-family: var(--sans); font-weight: 900; letter-spacing: -0.05em; line-height: 0.9;
  font-size: clamp(76px, 15vw, 196px); color: var(--ink);
}
.c-big small { font-size: 0.32em; font-weight: 700; letter-spacing: -0.02em; color: var(--ink-2); margin-left: 10px; }
.c-deck { font-size: 22px; line-height: 1.5; color: var(--ink-2); max-width: 34em; margin-top: 20px; }
.c-tiles { display: grid; grid-template-columns: repeat(auto-fit, minmax(190px, 1fr)); gap: 0; margin-top: 34px; border-top: 2px solid var(--ink); }
.c-tile { padding: 16px 18px 16px 0; font-family: var(--sans); }
.c-tile + .c-tile { padding-left: 18px; border-left: 1px solid var(--rule); }
.c-tile .v { font-size: clamp(34px, 4.6vw, 54px); font-weight: 800; letter-spacing: -0.035em; line-height: 1; }
.c-tile .l { font-size: 14px; color: var(--ink-2); margin-top: 6px; line-height: 1.35; }
@media (max-width: 640px) { .c-tile + .c-tile { border-left: 0; padding-left: 0; } }

.c-sec { padding: 64px 0 10px; border-top: 1px solid var(--rule); margin-top: 48px; }
.c-sec h2 { font-size: clamp(28px, 3.4vw, 40px); letter-spacing: -0.025em; }
.c-sub { font-size: 19px; color: var(--ink-2); max-width: 36em; margin: 10px 0 26px; }

/* money split: one tall segmented bar */
.split { display: flex; height: 64px; border-radius: 8px; overflow: hidden; gap: 2px; background: var(--surface); }
.split > div { position: relative; display: flex; align-items: center; padding: 0 14px; color: #fff; font-family: var(--sans); font-weight: 700; font-size: 15px; white-space: nowrap; min-width: 0; overflow: hidden; }
.split .est { background-image: repeating-linear-gradient(45deg, rgba(255,255,255,0.18) 0 6px, transparent 6px 12px); }
.split-legend { display: flex; flex-wrap: wrap; gap: 8px 22px; margin-top: 12px; font-family: var(--sans); font-size: 14px; color: var(--ink-2); }
.split-legend b { color: var(--ink); }
.split-legend i { display: inline-block; width: 12px; height: 12px; border-radius: 3px; margin-right: 7px; vertical-align: -1px; }

/* the price of a win: a staircase */
.stairs { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 14px; align-items: end; }
.step { background: var(--surface); border: 1px solid var(--rule); border-radius: 12px; padding: 18px 18px 16px; font-family: var(--sans); position: relative; }
.step .v { font-weight: 900; letter-spacing: -0.04em; line-height: 0.95; }
.step .l { font-size: 14px; color: var(--ink-2); margin-top: 8px; line-height: 1.4; }
.step .x { position: absolute; top: 14px; right: 16px; font-size: 13px; font-weight: 700; color: var(--bad); }
.periods { margin-top: 26px; }
.prow { display: grid; grid-template-columns: 130px minmax(0, 1fr) 90px; gap: 14px; align-items: center; padding: 7px 0; font-family: var(--sans); font-size: 14px; border-top: 1px solid var(--grid); }
.prow .bar { height: 14px; border-radius: 0 4px 4px 0; background: var(--s2); transition: width 0.6s ease; }
.prow .nb { color: var(--ink); font-weight: 700; text-align: right; font-variant-numeric: tabular-nums; }
.prow .who { color: var(--ink-2); }

/* concept explorer */
.groups { display: flex; flex-wrap: wrap; gap: 8px; margin: 6px 0 14px; }
.gbtn { font-family: var(--sans); font-size: 15px; font-weight: 600; border: 1.5px solid var(--rule); background: var(--surface); color: var(--ink-2); border-radius: 999px; padding: 8px 16px; cursor: pointer; }
.gbtn:hover { border-color: var(--ink); color: var(--ink); }
.gbtn[aria-pressed="true"] { background: var(--ink); border-color: var(--ink); color: var(--surface); }
.gbtn .n { opacity: 0.6; margin-left: 6px; font-weight: 500; }
.filters { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; margin-bottom: 18px; font-family: var(--sans); font-size: 14px; }
.filters input { font: inherit; padding: 8px 12px; border-radius: 8px; border: 1px solid var(--rule); background: var(--surface); color: var(--ink); min-width: 220px; }
.cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 14px; }
.card { all: unset; box-sizing: border-box; display: block; background: var(--surface); border: 1px solid var(--rule); border-radius: 12px; padding: 16px 18px; cursor: pointer; font-family: var(--sans); transition: border-color 0.12s, transform 0.12s; }
.card:hover, .card:focus-visible { border-color: var(--ink); transform: translateY(-1px); }
.card[aria-expanded="true"] { grid-column: 1 / -1; cursor: default; transform: none; border-color: var(--ink); }
.card h3 { font-size: 18px; margin: 0 0 6px; letter-spacing: -0.01em; }
.card .ol { font-family: var(--serif); font-size: 17px; color: var(--ink-2); line-height: 1.45; }
.card .meta { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; margin-top: 12px; font-size: 12.5px; color: var(--muted); }
.vd { font-weight: 700; font-size: 12px; border-radius: 999px; padding: 2px 9px; border: 1.5px solid currentColor; }
.vd-worked { color: var(--good); }
.vd-mixed { color: var(--ink-2); }
.vd-did-not-work { color: var(--bad); }
.vd-untested { color: var(--muted); }
.detail { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 18px 28px; margin-top: 16px; padding-top: 16px; border-top: 1px solid var(--grid); }
.detail h4 { font-size: 13px; color: var(--muted); margin: 0 0 4px; font-weight: 600; }
.detail p { font-family: var(--serif); font-size: 17px; line-height: 1.5; margin: 0; color: var(--ink); }
.ev { font-family: var(--sans); background: var(--wash); border-radius: 10px; padding: 14px 16px; }
.ev .num { font-size: 15px; color: var(--ink); line-height: 1.45; }
.rel { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 6px; }
.rel button { font: inherit; font-size: 13px; border: 1px solid var(--rule); background: none; color: var(--ink-2); border-radius: 6px; padding: 3px 8px; cursor: pointer; }
.rel button:hover { border-color: var(--ink); color: var(--ink); }
.close { float: right; font: inherit; font-size: 13px; background: none; border: 1px solid var(--rule); border-radius: 6px; padding: 3px 9px; cursor: pointer; color: var(--ink-2); }
.score { display: flex; gap: 0; margin: 4px 0 22px; border-radius: 8px; overflow: hidden; height: 10px; }
.empty { font-family: var(--sans); color: var(--muted); padding: 30px 0; }
@media (prefers-reduced-motion: reduce) { .card, .prow .bar { transition: none; } }