/* ══════════════════════════════════════════════════════════════════════════
   css/implantation-calculator.css — THE IMPLANTATION CALCULATOR  (fw-imp)
   /implantation-calculator, built 29 Sep 2026.

   ITS OWN PAGE. Same tokens, gutters, masthead band and no-cards rule as
   every FW page; about 80% of the devices are this page's alone: a short
   masthead with three facts beside the headline, a sentence you complete,
   a swipeable strip of days, four figures, a days-past-ovulation strip,
   the embryo's journey drawn stage by stage, a comparison table, a test
   ladder beside a photograph, topic-filtered questions, a round-photo
   close.

   ITS OWN PALETTE: purple (--pu) is the most likely days and the chosen
   thing on this page; blue the possible window; green ovulation; gold the
   earliest test; pink the reliable test and the page's actions; coral an
   IVF transfer; ink is today.

   NO CARDS, fade dividers; round things are objects only. Each section is
   about half a screen, never capped (a ceiling on content overflows on a
   wide, short window). No inline styles.
   ══════════════════════════════════════════════════════════════════════════ */

/* ══════════════════════════════════════════════════════════════
   00 · TOKENS & PRIMITIVES
   ══════════════════════════════════════════════════════════════ */
.fw-imp-page{
	--pad:28px;
	--ink:var(--dk-d);
	--line:color-mix(in srgb, var(--dk) 10%, transparent);
	--line-soft:color-mix(in srgb, var(--dk) 6%, transparent);
	--fade:linear-gradient(90deg, transparent, var(--line) 12%, var(--line) 88%, transparent);
	--fade-v:linear-gradient(180deg, transparent, var(--line) 14%, var(--line) 86%, transparent);
	--sec:clamp(32px, 5.4vh, 60px);
	--ease:cubic-bezier(.22,1,.36,1);
	--ease-pop:cubic-bezier(.34,1.56,.64,1);
	background:var(--wh);
}
.fw-imp{display:block;position:relative;background:var(--wh)}
.fw-imp em{font-family:var(--ff);font-style:normal}
.fw-imp-inner{position:relative;z-index:1;width:100%;padding-inline:var(--pad)}
.fw-imp-sec{position:relative;display:flex;flex-direction:column;justify-content:center;min-height:50vh;padding:var(--sec) 0}
.fw-imp-sec::before{content:"";position:absolute;left:var(--pad);right:var(--pad);top:0;height:1px;background:var(--fade)}
.fw-imp-sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}

.fw-imp-head{display:flex;flex-direction:column;gap:8px;margin-bottom:clamp(18px, 2.8vh, 30px)}
.fw-imp-head--row{flex-direction:row;align-items:flex-end;justify-content:space-between;gap:12px 40px;flex-wrap:wrap}
.fw-imp-head--row > .fw-imp-sub{flex:1 1 300px;text-align:right}
.fw-imp-eyebrow{display:inline-flex;align-items:center;gap:8px;margin:0;font-size:12px;font-weight:600;letter-spacing:.14em;text-transform:uppercase;color:var(--pu-ink)}
.fw-imp-eyebrow .fw-ico{width:16px;height:16px;flex:none}
.fw-imp-h2{margin:0;font-family:var(--ff);font-weight:600;color:var(--ink);font-size:clamp(26px, 4.2vh, 40px);line-height:1.12;letter-spacing:-.02em;text-wrap:balance}
.fw-imp-h3{margin:0;font-family:var(--ff);font-size:17px;font-weight:600;color:var(--ink);transition:color .25s var(--ease)}
.fw-imp-sub{margin:0;font-size:clamp(14.5px, 1.9vh, 16.5px);line-height:1.6;color:var(--g6);text-wrap:pretty}

.fw-imp-btn{
	display:inline-flex;align-items:center;justify-content:center;gap:9px;min-height:48px;padding:0 22px;border-radius:999px;
	background:var(--pk-dd);color:var(--wh);font-size:15px;font-weight:600;box-shadow:var(--pk-glow);
	transition:transform .25s var(--ease), background .25s var(--ease), box-shadow .25s var(--ease)
}
.fw-imp-btn:hover{color:var(--wh);background:var(--pk-d);transform:translateY(-2px);box-shadow:var(--pk-glow-lg)}
.fw-imp-link{display:inline-flex;align-items:center;gap:8px;font-size:15px;font-weight:600;color:var(--pu-ink);transition:color .2s var(--ease)}
.fw-imp-link:hover{color:var(--bl-d)}
.fw-imp-link .bi,.fw-imp-btn .bi{transition:transform .25s var(--ease)}
.fw-imp-link:hover .bi,.fw-imp-btn:hover .bi{transform:translateX(4px)}

.fw-imp.fw-imp-anim [data-imp-reveal]{opacity:0;transform:translateY(20px);transition:opacity .7s var(--ease), transform .7s var(--ease)}
.fw-imp.fw-imp-anim [data-imp-reveal].is-in{opacity:1;transform:none}
.fw-imp-steps > :nth-child(2),.fw-imp-ladder > :nth-child(2){transition-delay:.08s}
.fw-imp-steps > :nth-child(3),.fw-imp-ladder > :nth-child(3){transition-delay:.16s}
.fw-imp-steps > :nth-child(4){transition-delay:.24s}
.fw-imp-steps > :nth-child(5){transition-delay:.32s}
.fw-imp-steps > :nth-child(6){transition-delay:.4s}

/* ══════════════════════════════════════════════════════════════
   01 · A SHORT MASTHEAD
   ══════════════════════════════════════════════════════════════ */
.fw-imp .fw-imp-mast{padding-bottom:clamp(14px, 2.4vh, 26px)}
.fw-imp-top{display:flex;align-items:flex-end;justify-content:space-between;gap:16px 40px;flex-wrap:wrap}
.fw-imp .fw-imp-h1{margin:0;font-size:clamp(30px, 5vh, 50px)}
.fw-imp .fw-imp-mast .fw-mast__h1 span{display:block;margin-top:.2em;font-size:.5em;font-weight:500;letter-spacing:-.01em;color:var(--pu-ink)}
.fw-imp-facts{display:flex;margin:0;padding:0;list-style:none}
.fw-imp-facts li{position:relative;display:grid;gap:2px;padding:0 clamp(16px, 2vw, 30px)}
.fw-imp-facts li + li::before{content:"";position:absolute;left:0;top:0;bottom:0;width:1px;background:var(--fade-v)}
.fw-imp-facts b{font-size:clamp(22px, 3.4vh, 32px);font-weight:700;letter-spacing:-.02em;color:var(--pu-ink);line-height:1.05}
.fw-imp-facts li:nth-child(2) b{color:var(--bl-d)}
.fw-imp-facts li:nth-child(3) b{color:var(--pk-dd)}
.fw-imp-facts span{font-size:12.5px;color:var(--g6)}

/* ══════════════════════════════════════════════════════════════
   02 · THE TOOL
   ══════════════════════════════════════════════════════════════ */
.fw-imp-tool{position:relative;padding:clamp(16px, 2.6vh, 28px) 0 clamp(18px, 3vh, 32px);background:linear-gradient(180deg, var(--pu-wash), var(--wh) 70%)}
.fw-imp-tool::before{content:"";position:absolute;left:var(--pad);right:var(--pad);top:0;height:1px;background:var(--fade)}

/* the sentence */
.fw-imp-ask{display:flex;align-items:center;justify-content:space-between;gap:12px 24px;flex-wrap:wrap}
.fw-imp-sentence{display:flex;align-items:center;flex-wrap:wrap;gap:10px 14px;margin:0;font-size:clamp(20px, 2.8vh, 26px);font-weight:600;letter-spacing:-.01em;color:var(--ink)}
.fw-imp-pick{display:inline-flex;gap:8px;flex-wrap:wrap}
.fw-imp-pick button{
	display:inline-flex;align-items:center;gap:10px;height:48px;padding:0 20px 0 6px;border-radius:999px;font-size:15.5px;font-weight:600;color:var(--ink);background:var(--wh);
	box-shadow:inset 0 0 0 1.5px var(--line), 0 8px 18px -14px var(--dk);
	transition:background .25s var(--ease), color .25s var(--ease), box-shadow .25s var(--ease), transform .25s var(--ease)
}
.fw-imp-pick__ico{width:36px;height:36px;flex:none;border-radius:50%;display:grid;place-items:center;font-style:normal;background:var(--pu-wash);color:var(--pu-ink);transition:background .25s var(--ease), color .25s var(--ease), transform .35s var(--ease-pop)}
.fw-imp-pick .fw-ico{width:18px;height:18px}
.fw-imp-pick button:hover{color:var(--bl-d);transform:translateY(-2px);box-shadow:inset 0 0 0 1.5px var(--bl), 0 12px 22px -14px var(--bl)}
.fw-imp-pick button:hover .fw-imp-pick__ico{background:var(--bl);color:var(--wh);transform:rotate(-8deg)}
.fw-imp-pick button.is-on{background:var(--pu);color:var(--wh);box-shadow:0 14px 28px -14px var(--pu)}
.fw-imp-pick button.is-on .fw-imp-pick__ico{background:var(--wh);color:var(--pu-ink);transform:none}
.fw-imp-extra{display:flex;align-items:center;gap:14px;flex-wrap:wrap}
.fw-imp-cyc,.fw-imp-emb{display:inline-flex;align-items:center;gap:6px;font-size:13px;font-weight:600;color:var(--g6);animation:fw-imp-in .35s var(--ease)}
.fw-imp-cyc[hidden],.fw-imp-emb[hidden]{display:none}
@keyframes fw-imp-in{from{opacity:0;transform:translateY(6px)}}
.fw-imp-cyc > span,.fw-imp-emb > span{margin-right:4px;letter-spacing:.08em;text-transform:uppercase;font-size:11.5px}
.fw-imp-cyc button{width:34px;height:34px;border-radius:50%;display:grid;place-items:center;font-size:14px;color:var(--ink);box-shadow:inset 0 0 0 1px var(--line);transition:background .2s var(--ease), color .2s var(--ease)}
.fw-imp-cyc button:hover{background:var(--bl);color:var(--wh);box-shadow:none}
.fw-imp-cyc button:disabled{opacity:.3;pointer-events:none}
.fw-imp-cyc output{min-width:74px;text-align:center;font-size:13px;color:var(--g6)}
.fw-imp-cyc output b{font-size:18px;color:var(--ink)}
.fw-imp-emb button{padding:7px 13px;border-radius:999px;font-size:13px;font-weight:600;color:var(--g7);box-shadow:inset 0 0 0 1.5px var(--line);transition:all .2s var(--ease)}
.fw-imp-emb button:hover{color:var(--bl-d);box-shadow:inset 0 0 0 1.5px var(--bl)}
.fw-imp-emb button.is-on{background:var(--dk);color:var(--wh);box-shadow:none}
.fw-imp-reset{display:inline-flex;align-items:center;gap:6px;padding:7px 12px;border-radius:999px;font-size:13px;font-weight:600;color:var(--g7);box-shadow:inset 0 0 0 1px var(--line);transition:background .2s var(--ease), color .2s var(--ease)}
.fw-imp-reset:hover{background:var(--bl);color:var(--wh);box-shadow:none}
.fw-imp-reset .bi{transition:transform .5s var(--ease)}
.fw-imp-reset:hover .bi{transform:rotate(-270deg)}
.fw-imp-reset[hidden]{display:none}

/* the strip of days to pick from */
.fw-imp-daysbox{margin-top:12px}
.fw-imp-daysq{display:flex;align-items:baseline;justify-content:space-between;gap:12px;margin:0 0 8px;font-size:14px;font-weight:600;color:var(--g7)}
.fw-imp-daysq b{font-size:13px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--pu-ink)}
.fw-imp-daysrow{display:grid;grid-template-columns:40px minmax(0, 1fr) 40px;align-items:center;gap:8px}
.fw-imp-nav{width:40px;height:40px;border-radius:50%;display:grid;place-items:center;font-size:15px;color:var(--ink);background:var(--wh);box-shadow:inset 0 0 0 1px var(--line);transition:background .2s var(--ease), color .2s var(--ease)}
.fw-imp-nav:hover{background:var(--bl);color:var(--wh);box-shadow:var(--bl-glow-sm)}
.fw-imp-days{position:relative;display:flex;gap:6px;margin:0;padding:6px 2px 10px;list-style:none;overflow-x:auto;scroll-snap-type:x proximity;scrollbar-width:none;scroll-behavior:smooth;
	-webkit-mask-image:linear-gradient(90deg, transparent, var(--bk) 3%, var(--bk) 97%, transparent);mask-image:linear-gradient(90deg, transparent, var(--bk) 3%, var(--bk) 97%, transparent)}
.fw-imp-days::-webkit-scrollbar{display:none}
.fw-imp-days li{position:relative;flex:none;scroll-snap-align:center}
.fw-imp-days li.is-first{margin-left:6px;padding-left:12px}
.fw-imp-days li.is-first::before{content:"";position:absolute;left:0;top:6px;bottom:6px;width:1px;background:var(--fade-v)}
.fw-imp-day{position:relative;width:52px;display:grid;grid-template-rows:14px 44px 12px;justify-items:center;row-gap:6px;padding:4px 0 2px;background:none}
.fw-imp-day small{font-size:11px;font-weight:600;letter-spacing:.06em;text-transform:uppercase;color:var(--g5);transition:color .2s var(--ease)}
.fw-imp-day b{
	width:44px;height:44px;border-radius:50%;display:grid;place-items:center;font-size:18px;font-weight:700;color:var(--ink);font-variant-numeric:tabular-nums;background:var(--wh);
	box-shadow:inset 0 0 0 1px var(--line-soft);transition:background .2s var(--ease), color .2s var(--ease), box-shadow .2s var(--ease), transform .3s var(--ease-pop)
}
.fw-imp-day em{font-size:10px;font-weight:700;line-height:12px;letter-spacing:.06em;text-transform:uppercase;color:var(--pu-ink)}
.fw-imp-day::after{content:"";position:absolute;left:50%;top:69px;width:16px;height:3px;border-radius:2px;background:transparent;transform:translateX(-50%);transition:background .3s var(--ease)}
.fw-imp-day.is-m-likely b{background:var(--pu-l);color:var(--pu-ink);box-shadow:none}
.fw-imp-day.is-m-likely::after{background:var(--pu)}
.fw-imp-day.is-m-test::after{background:var(--pk)}
.fw-imp-day:hover:not(:disabled) b{color:var(--bl-d);box-shadow:inset 0 0 0 2px var(--bl);transform:translateY(-2px)}
.fw-imp-day:hover:not(:disabled) small{color:var(--bl-d)}
.fw-imp-day.is-today b{box-shadow:inset 0 0 0 2px var(--ink)}
.fw-imp-day.is-today em{color:var(--ink)}
.fw-imp-day.is-picked b{background:var(--pu);color:var(--wh);box-shadow:0 10px 20px -8px var(--pu);transform:scale(1.08)}
.fw-imp-day.is-picked small{color:var(--pu-ink)}
.fw-imp-day:disabled{opacity:.3;cursor:not-allowed}
.fw-imp-note{margin:8px 0 0;font-size:13px;color:var(--g6)}
/* The source of the 84% figure in the masthead facts (10 Oct 2026). */
.fw-imp-src{margin:8px 0 0;font-size:12px;color:var(--g6)}

/* the answer */
.fw-imp-answer{margin-top:8px}
.fw-imp-idle{display:none}
.fw-js .fw-imp:not(.is-live) .fw-imp-idle{display:flex;align-items:center;gap:12px;margin:0;padding:8px 0;font-size:17px;font-weight:600;color:var(--g7)}
.fw-js .fw-imp:not(.is-live) .fw-imp-idle .bi{width:44px;height:44px;border-radius:50%;display:grid;place-items:center;background:var(--pu);color:var(--wh);font-size:18px;animation:fw-imp-tap 1.6s ease-in-out infinite}
@keyframes fw-imp-tap{50%{transform:translateY(-3px)}}
.fw-js .fw-imp:not(.is-live) .fw-imp-res{display:none}
.fw-imp-res{display:grid;gap:12px}
.fw-imp-now{display:flex;align-items:center;flex-wrap:wrap;gap:8px 12px;margin:0;font-size:15px;color:var(--g7)}
.fw-imp-now a{font-weight:600;color:var(--pu-ink)}
.fw-imp-now a:hover{color:var(--bl-d)}
.fw-imp-chip{padding:3px 10px;border-radius:999px;background:var(--bl-d);color:var(--wh);font-size:11px;font-weight:700;letter-spacing:.04em}
.fw-imp-chip[hidden]{display:none}
.fw-imp-figs{display:grid;grid-template-columns:repeat(4, minmax(0, 1fr));margin:0}
.fw-imp-figs div{position:relative;display:grid;gap:4px;padding:6px 20px 6px 18px;--fc:var(--pu)}
.fw-imp-figs div:first-child{padding-left:18px}
.fw-imp-figs div::before{content:"";position:absolute;left:0;top:10px;width:8px;height:8px;border-radius:50%;background:var(--fc)}
.fw-imp-figs div + div::after{content:"";position:absolute;left:-10px;top:0;bottom:0;width:1px;background:var(--fade-v)}
.fw-imp-figs .is-possible{--fc:var(--bl)}
.fw-imp-figs .is-early{--fc:var(--co)}
.fw-imp-figs .is-reliable{--fc:var(--pk)}
.fw-imp-figs dt{font-size:11.5px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--g5)}
.fw-imp-figs dd{margin:0;font-size:clamp(19px, 2.8vh, 26px);font-weight:700;letter-spacing:-.02em;color:var(--ink);font-variant-numeric:tabular-nums}
.fw-imp-figs .is-likely dd{color:var(--pu-ink)}
.fw-imp-res.is-new .fw-imp-figs dd{animation:fw-imp-in .45s var(--ease)}

/* the days-past-ovulation graph: a chance curve over seventeen day columns,
   the important days pinned with a label and a stem, dates underneath */
.fw-imp-stripbox{margin:10px 0 0}
.fw-imp-graph{position:relative}
.fw-imp-curve{position:absolute;left:0;top:30px;width:100%;height:84px;overflow:visible;pointer-events:none}
.fw-imp-curve__s1{stop-color:var(--pu);stop-opacity:.3}
.fw-imp-curve__s2{stop-color:var(--bl);stop-opacity:0}
.fw-imp-curve__area{fill:url(#imp-fill)}
.fw-imp-curve__line{fill:none;stroke:var(--pu);stroke-width:2.5;stroke-linejoin:round;stroke-linecap:round}
.fw-imp-strip{position:relative;display:grid;grid-template-columns:repeat(17, minmax(0, 1fr));margin:0;padding:0;list-style:none}
.fw-imp-strip::after{content:"";position:absolute;left:0;right:0;top:113px;height:1.5px;background:var(--line)}
.fw-imp-sd{position:relative;display:grid;grid-template-rows:30px 84px auto auto;justify-items:center;--pc:var(--g5)}
.fw-imp-sd.is-peak{--pc:var(--pu)}
.fw-imp-sd.is-early{--pc:var(--co)}
.fw-imp-sd.is-reliable{--pc:var(--pk)}
.fw-imp-sd.is-transfer{--pc:var(--dk)}
.fw-imp-sd.is-ov{--pc:var(--mt-d)}
.fw-imp-sd__pin{align-self:end;margin-bottom:5px;padding:3px 9px;border-radius:999px;background:var(--pc);color:var(--wh);font-size:10.5px;font-weight:700;line-height:1.3;letter-spacing:.02em;white-space:nowrap;box-shadow:0 6px 14px -8px var(--pc)}
.fw-imp-sd__pin:empty{visibility:hidden}
.fw-imp-sd__bar{position:relative;display:block;width:100%;height:84px}
.fw-imp-sd__bar::before{content:"";position:absolute;left:50%;top:0;bottom:0;border-left:1px dashed var(--line-soft)}
.fw-imp-sd.is-likely .fw-imp-sd__bar{background:linear-gradient(180deg, transparent, var(--pu-wash))}
.fw-imp-sd:is(.is-ov, .is-transfer, .is-peak, .is-early, .is-reliable) .fw-imp-sd__bar::before{top:-6px;border-left:2px solid var(--pc);transform:translateX(-1px)}
.fw-imp-sd.is-today .fw-imp-sd__bar::after{content:"";position:absolute;left:50%;top:0;bottom:0;border-left:2px dotted var(--ink);transform:translateX(-1px)}
.fw-imp-sd__n{width:30px;height:30px;margin-top:8px;border-radius:50%;display:grid;place-items:center;font-size:13px;font-weight:700;color:var(--g6);font-variant-numeric:tabular-nums;transition:transform .3s var(--ease-pop)}
.fw-imp-sd:hover .fw-imp-sd__n{transform:scale(1.14)}
.fw-imp-sd.is-possible .fw-imp-sd__n{color:var(--bl-d);box-shadow:inset 0 0 0 1.5px var(--bl)}
.fw-imp-sd.is-likely .fw-imp-sd__n{background:var(--pu);color:var(--wh);box-shadow:none}
.fw-imp-sd.is-early .fw-imp-sd__n{background:var(--co);color:var(--wh);box-shadow:none}
.fw-imp-sd.is-reliable .fw-imp-sd__n{background:var(--pk);color:var(--wh);box-shadow:none}
.fw-imp-sd.is-transfer .fw-imp-sd__n{background:var(--dk);color:var(--wh);box-shadow:none}
.fw-imp-sd.is-ov .fw-imp-sd__n{background:var(--mt-d);color:var(--wh);box-shadow:none}
.fw-imp-sd.is-today .fw-imp-sd__n{box-shadow:0 0 0 2.5px var(--wh), 0 0 0 5px var(--ink)}
.fw-imp-sd__d{display:grid;justify-items:center;margin-top:6px;line-height:1.15}
.fw-imp-sd__d small{font-size:10.5px;font-weight:600;letter-spacing:.04em;text-transform:uppercase;color:var(--g5)}
.fw-imp-sd__d b{font-size:12.5px;font-weight:700;color:var(--g7);white-space:nowrap}
.fw-imp-sd.is-today .fw-imp-sd__d small,.fw-imp-sd.is-today .fw-imp-sd__d b{color:var(--ink)}
.fw-js .fw-imp:not(.is-live) .fw-imp-sd__d{visibility:hidden}
.fw-js .fw-imp:not(.is-live) .fw-imp-sd.is-today .fw-imp-sd__n{box-shadow:none}
.fw-js .fw-imp:not(.is-live) .fw-imp-sd.is-today .fw-imp-sd__bar::after{display:none}
.fw-imp-key{display:flex;flex-wrap:wrap;align-items:center;gap:8px 18px;margin:10px 0 0;font-size:12px;font-weight:500;color:var(--g7)}
.fw-imp-key span{display:inline-flex;align-items:center;gap:7px}
.fw-imp-key span[hidden]{display:none}
.fw-imp-key i{width:12px;height:12px;border-radius:50%}
.fw-imp-key .k-ov{background:var(--mt-d)}
.fw-imp-key .k-transfer{background:var(--dk)}
.fw-imp-key .k-curve{width:20px;height:3px;border-radius:2px;background:var(--pu)}
.fw-imp-key .k-likely{background:var(--pu)}
.fw-imp-key .k-early{background:var(--co)}
.fw-imp-key .k-reliable{background:var(--pk)}
.fw-imp-key .k-today{box-shadow:inset 0 0 0 2px var(--ink)}
.fw-imp-key em{margin-left:auto;color:var(--g5)}

/* ══════════════════════════════════════════════════════════════
   03 · THE JOURNEY — drawn stages on a dotted path
   ══════════════════════════════════════════════════════════════ */
.fw-imp-steps{position:relative;display:grid;grid-template-columns:repeat(6, minmax(0, 1fr));gap:clamp(14px, 2vw, 30px);margin:0;padding:0;list-style:none}
.fw-imp-steps::before{content:"";position:absolute;left:4%;right:4%;top:46px;height:0;border-top:2px dotted var(--pu-l2)}
.fw-imp-step{position:relative;display:grid;justify-items:start;align-content:start;gap:6px}
.fw-imp-art{position:relative;width:92px;height:92px;padding:6px;border-radius:50%;background:var(--wh);overflow:visible;transition:transform .5s var(--ease-pop)}
.fw-imp-step:hover .fw-imp-art{transform:scale(1.08) rotate(-6deg)}
.fw-imp-art .a-halo{fill:var(--pu-l)}
.fw-imp-art .a-cell{fill:var(--wh);stroke:var(--pu);stroke-width:2}
.fw-imp-art .a-core{fill:var(--pu)}
.fw-imp-art .a-ring{fill:var(--wh);stroke:var(--pu);stroke-width:2.5}
.fw-imp-art .a-mass{fill:var(--pu)}
.fw-imp-art .a-tail{fill:none;stroke:var(--bl);stroke-width:2.5;stroke-linecap:round}
.fw-imp-art .a-lining{fill:var(--pk-l2)}
.fw-imp-art .a-wave{fill:none;stroke:var(--pk);stroke-width:3;stroke-linecap:round}
.fw-imp-art .a-wave--2{stroke:var(--pu);opacity:.6}
.fw-imp-step:hover .a-cell,.fw-imp-step:hover .a-ring{stroke:var(--bl)}
.fw-imp-step:hover .a-core,.fw-imp-step:hover .a-mass{fill:var(--bl)}
.fw-imp-step--implant .a-ring{animation:fw-imp-settle 3.6s ease-in-out infinite}
@keyframes fw-imp-settle{50%{transform:translateY(3px)}}
.fw-imp-step__day{margin:6px 0 0;padding:3px 10px;border-radius:999px;background:var(--pu);color:var(--wh);font-size:11.5px;font-weight:700;letter-spacing:.06em}
.fw-imp-step--implant .fw-imp-step__day{background:var(--pk)}
.fw-imp-step:hover .fw-imp-h3{color:var(--bl-d)}
.fw-imp-step__txt{margin:0;font-size:14px;line-height:1.55;color:var(--g6)}

/* ══════════════════════════════════════════════════════════════
   04 · SPOTTING OR A PERIOD — the comparison table
   ══════════════════════════════════════════════════════════════ */
.fw-imp-split{display:grid;grid-template-columns:minmax(0, .8fr) minmax(0, 1.4fr);gap:clamp(28px, 5vw, 80px);align-items:center}
.fw-imp-split .fw-imp-head{margin:0}
.fw-imp-vs{width:100%;border-collapse:collapse}
.fw-imp-vs thead th{padding:0 14px 14px 0;text-align:left;vertical-align:bottom}
.fw-imp-vs thead th.is-imp,.fw-imp-vs thead th.is-per{font-size:13px;font-weight:700;letter-spacing:.04em}
.fw-imp-vs thead th.is-imp::before,.fw-imp-vs thead th.is-per::before{content:"";display:inline-block;width:12px;height:12px;margin-right:8px;border-radius:50%;vertical-align:-1px}
.fw-imp-vs thead th.is-imp{color:var(--pu-ink)}
.fw-imp-vs thead th.is-imp::before{background:var(--pu)}
.fw-imp-vs thead th.is-per{color:var(--pk-dd)}
.fw-imp-vs thead th.is-per::before{background:var(--pk)}
.fw-imp-vs tbody tr{position:relative}
.fw-imp-vs tbody th,.fw-imp-vs tbody td{padding:12px 14px 12px 0;text-align:left;vertical-align:top;border-top:1px solid var(--line-soft);font-size:15px;line-height:1.5;transition:color .2s var(--ease)}
.fw-imp-vs tbody th{width:18%;font-size:11.5px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--g5);padding-top:15px}
.fw-imp-vs tbody td.is-imp{color:var(--ink);font-weight:500}
.fw-imp-vs tbody td.is-per{color:var(--g6)}
.fw-imp-vs tbody tr:hover td.is-imp{color:var(--pu-ink)}
.fw-imp-vs tbody tr:hover td.is-per{color:var(--pk-dd)}
.fw-imp-vs tbody tr:hover th{color:var(--bl-d)}

/* ══════════════════════════════════════════════════════════════
   05 · WHEN TO TEST — a ladder beside a photograph
   ══════════════════════════════════════════════════════════════ */
.fw-imp-split--photo{grid-template-columns:minmax(0, 1fr) minmax(0, 1.15fr)}
.fw-imp-tests__pic{margin:0;aspect-ratio:4/3.2;overflow:hidden}
.fw-imp-tests__pic img{width:100%;height:100%;object-fit:cover;object-position:60% 45%;transition:transform 1.2s var(--ease)}
.fw-imp-tests__pic:hover img{transform:scale(1.04)}
.fw-imp-ladder{margin:0;padding:0;list-style:none}
.fw-imp-rung{position:relative;display:grid;grid-template-columns:170px minmax(0, 1fr);gap:20px;align-items:center;padding:16px 0;--rc:var(--co);--rc-ink:var(--co-ink)}
.fw-imp-rung + .fw-imp-rung::before{content:"";position:absolute;left:0;right:0;top:0;height:1px;background:var(--fade)}
.fw-imp-rung--1{--rc:var(--pk);--rc-ink:var(--pk-dd)}
.fw-imp-rung--2{--rc:var(--bl);--rc-ink:var(--bl-d)}
.fw-imp-rung__n{display:grid;margin:0;line-height:1}
.fw-imp-rung__n b{font-size:clamp(30px, 4.6vh, 44px);font-weight:700;letter-spacing:-.03em;color:var(--rc-ink);transition:transform .35s var(--ease-pop)}
.fw-imp-rung:hover .fw-imp-rung__n b{transform:scale(1.06)}
.fw-imp-rung__n small{margin-top:6px;font-size:12px;color:var(--g5)}
.fw-imp-rung__t{display:grid;gap:4px}
.fw-imp-rung__t p{margin:0;font-size:14.5px;line-height:1.55;color:var(--g7)}
.fw-imp-rung__t .fw-imp-rung__tag{display:flex;align-items:center;gap:12px;font-size:12px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--rc-ink)}
.fw-imp-dots{display:inline-flex;gap:4px}
.fw-imp-dots i{width:9px;height:9px;border-radius:50%;box-shadow:inset 0 0 0 1.5px var(--g3)}
.fw-imp-dots i.is-on{background:var(--rc);box-shadow:none}

/* ══════════════════════════════════════════════════════════════
   06 · QUESTIONS — filtered by topic
   ══════════════════════════════════════════════════════════════ */
.fw-imp-topics{display:flex;gap:6px;flex-wrap:wrap}
.fw-imp-topics button{padding:8px 15px;border-radius:999px;font-size:13.5px;font-weight:600;color:var(--g7);box-shadow:inset 0 0 0 1.5px var(--line);transition:all .2s var(--ease)}
.fw-imp-topics button:hover{color:var(--bl-d);box-shadow:inset 0 0 0 1.5px var(--bl)}
.fw-imp-topics button.is-on{background:var(--pu);color:var(--wh);box-shadow:none}
.fw-imp-qa{display:grid}
.fw-imp-qa details{position:relative;animation:fw-imp-in .35s var(--ease)}
.fw-imp-qa details[hidden]{display:none}
.fw-imp-qa details::after{content:"";position:absolute;left:0;right:0;bottom:0;height:1px;background:var(--fade)}
.fw-imp-qa summary{display:grid;grid-template-columns:110px minmax(0, 1fr) 24px;align-items:center;gap:14px;padding:16px 0;cursor:pointer;list-style:none}
.fw-imp-qa summary::-webkit-details-marker{display:none}
.fw-imp-qa__t{justify-self:start;padding:3px 10px;border-radius:999px;font-size:11px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--pu-ink);box-shadow:inset 0 0 0 1.5px var(--pu-l2)}
.fw-imp-qa__q{font-size:16.5px;font-weight:600;color:var(--ink);transition:color .2s var(--ease)}
.fw-imp-qa summary .bi{font-size:15px;color:var(--g5);transition:transform .35s var(--ease), color .2s var(--ease)}
.fw-imp-qa summary:hover .fw-imp-qa__q{color:var(--bl-d)}
.fw-imp-qa details[open] .fw-imp-qa__q{color:var(--pu-ink)}
.fw-imp-qa details[open] summary .bi{transform:rotate(180deg);color:var(--pu)}
.fw-imp-qa details p{margin:0;padding:0 38px 18px 124px;font-size:15px;line-height:1.7;color:var(--g6)}

/* ══════════════════════════════════════════════════════════════
   07 · CLOSE — the two week wait: a consultation photograph beside
   fourteen days drawn as a track, and three things a specialist does
   ══════════════════════════════════════════════════════════════ */
.fw-imp-close{position:relative;display:flex;flex-direction:column;justify-content:center;min-height:50vh;padding:var(--sec) 0;background:linear-gradient(180deg, var(--wh), var(--pu-wash))}
.fw-imp-close::before{content:"";position:absolute;left:var(--pad);right:var(--pad);top:0;height:1px;background:var(--fade)}
.fw-imp-close__grid{display:grid;grid-template-columns:minmax(0, 1fr) minmax(0, 1.15fr);gap:clamp(28px, 5vw, 80px);align-items:center}
.fw-imp-close__pic{margin:0;aspect-ratio:5/4;overflow:hidden}
.fw-imp-close__pic img{width:100%;height:100%;object-fit:cover;object-position:50% 40%;transition:transform 1.2s var(--ease)}
.fw-imp-close__pic:hover img{transform:scale(1.04)}
.fw-imp-close__body{display:grid;gap:14px}
.fw-imp-close__h{margin:0;font-family:var(--ff);font-weight:600;color:var(--ink);font-size:clamp(24px, 4vh, 38px);line-height:1.15;letter-spacing:-.02em;text-wrap:balance}

/* fourteen days as a track: day 1 green, implantation purple, test day pink */
.fw-imp-wait{display:grid;grid-template-columns:repeat(14, minmax(0, 1fr));gap:4px;margin:6px 0 0;padding:0;list-style:none}
.fw-imp-wait li{height:8px;border-radius:4px;background:var(--line);transform-origin:left center}
.fw-imp-wait li:first-child{background:var(--mt-d)}
.fw-imp-wait li.is-likely{background:var(--pu)}
.fw-imp-wait li.is-test{background:var(--pk)}
.fw-imp-wait span{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}
.fw-imp.fw-imp-anim .fw-imp-wait li{transform:scaleX(0);transition:transform .45s var(--ease)}
.fw-imp.fw-imp-anim .fw-imp-wait.is-in li{transform:none}
.fw-imp-wait li:nth-child(2){transition-delay:.05s}
.fw-imp-wait li:nth-child(3){transition-delay:.1s}
.fw-imp-wait li:nth-child(4){transition-delay:.15s}
.fw-imp-wait li:nth-child(5){transition-delay:.2s}
.fw-imp-wait li:nth-child(6){transition-delay:.25s}
.fw-imp-wait li:nth-child(7){transition-delay:.3s}
.fw-imp-wait li:nth-child(8){transition-delay:.35s}
.fw-imp-wait li:nth-child(9){transition-delay:.4s}
.fw-imp-wait li:nth-child(10){transition-delay:.45s}
.fw-imp-wait li:nth-child(11){transition-delay:.5s}
.fw-imp-wait li:nth-child(12){transition-delay:.55s}
.fw-imp-wait li:nth-child(13){transition-delay:.6s}
.fw-imp-wait li:nth-child(14){transition-delay:.65s}
.fw-imp-wait__cap{display:grid;grid-template-columns:repeat(14, minmax(0, 1fr));gap:4px;margin:-4px 0 4px;font-size:11.5px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--mt-ink)}
.fw-imp-wait__cap span{grid-row:1;grid-column:1 / 5;white-space:nowrap}
.fw-imp-wait__cap .is-likely{grid-column:8 / 11;justify-self:center;color:var(--pu-ink)}
.fw-imp-wait__cap .is-test{grid-column:12 / 15;justify-self:end;color:var(--pk-dd)}

/* what a specialist does: three columns on fade dividers */
.fw-imp-help{display:grid;grid-template-columns:repeat(3, minmax(0, 1fr));gap:22px;margin:4px 0 0;padding:0;list-style:none}
.fw-imp-help li{position:relative;display:grid;align-content:start;gap:6px}
.fw-imp-help li + li::before{content:"";position:absolute;left:-11px;top:0;bottom:0;width:1px;background:var(--fade-v)}
.fw-imp-help__ico{width:42px;height:42px;margin-bottom:4px;border-radius:50%;display:grid;place-items:center;background:var(--bl-l);color:var(--bl-d);transition:background .25s var(--ease), color .25s var(--ease), transform .35s var(--ease-pop)}
.fw-imp-help__ico .fw-ico{width:20px;height:20px}
.fw-imp-help li:hover .fw-imp-help__ico{background:var(--bl);color:var(--wh);transform:rotate(-8deg) scale(1.06)}
.fw-imp-help li:hover .fw-imp-h3{color:var(--bl-d)}
.fw-imp-help .fw-imp-h3{font-size:16px;line-height:1.3}
.fw-imp-help p{margin:0;font-size:14px;line-height:1.55;color:var(--g6)}
.fw-imp-close__acts{display:flex;flex-wrap:wrap;align-items:center;gap:14px 28px;margin-top:8px}
.fw-imp-close__more{display:flex;flex-wrap:wrap;align-items:center;gap:6px 18px;margin:0;font-size:13px;font-weight:600;letter-spacing:.06em;text-transform:uppercase;color:var(--g5)}
.fw-imp-close__more .fw-imp-link{font-size:14.5px;letter-spacing:0;text-transform:none}

/* ══════════════════════════════════════════════════════════════
   08 · RESPONSIVE — and the phone as an app
   ══════════════════════════════════════════════════════════════ */
@media (max-width:1200px){
	.fw-imp-steps{grid-template-columns:repeat(3, minmax(0, 1fr));row-gap:28px}
	.fw-imp-steps::before{display:none}
}
@media (max-width:1024px){
	.fw-imp-page{--pad:14px;--sec:clamp(34px, 8vw, 54px)}
	.fw-imp-h2{font-size:clamp(24px, 6.4vw, 32px)}
	.fw-imp .fw-imp-h1{font-size:clamp(28px, 8vw, 40px)}
	.fw-imp-head--row > .fw-imp-sub{text-align:left}
	.fw-imp-sec,.fw-imp-close{min-height:0}
	.fw-imp-split,.fw-imp-split--photo{grid-template-columns:minmax(0, 1fr)}
	.fw-imp-figs{grid-template-columns:minmax(0, 1fr) minmax(0, 1fr);row-gap:14px}
	.fw-imp-figs div:nth-child(3)::after{display:none}
	/* The strip swipes. */
	.fw-imp-graphbox{margin-inline:calc(var(--pad) * -1);padding-inline:var(--pad);overflow-x:auto;scrollbar-width:none}
	.fw-imp-graphbox::-webkit-scrollbar{display:none}
	.fw-imp-graph{min-width:940px}
	.fw-imp-close__grid{grid-template-columns:minmax(0, 1fr)}
	/* The journey becomes a swipe deck. */
	.fw-imp-steps{display:flex;overflow-x:auto;scroll-snap-type:x mandatory;scroll-padding-inline:var(--pad);margin-inline:calc(var(--pad) * -1);padding-inline:var(--pad);gap:18px;scrollbar-width:none}
	.fw-imp-steps::-webkit-scrollbar{display:none}
	.fw-imp-step{flex:0 0 62%;scroll-snap-align:start}
}
@media (max-width:640px){
	.fw-imp-top{flex-direction:column;align-items:flex-start}
	.fw-imp-facts{margin-inline:calc(var(--pad) * -1);padding-inline:var(--pad);overflow-x:auto;width:calc(100% + var(--pad) * 2);scrollbar-width:none}
	.fw-imp-facts li:first-child{padding-left:0}
	.fw-imp-facts li{flex:none}
	.fw-imp-ask{display:block}
	.fw-imp-sentence{display:grid;gap:10px;font-size:19px}
	.fw-imp-extra{margin-top:10px}
	.fw-imp-pick{display:flex;flex-wrap:nowrap;overflow-x:auto;margin-inline:calc(var(--pad) * -1);padding:2px var(--pad) 14px;scrollbar-width:none}
	.fw-imp-pick::-webkit-scrollbar{display:none}
	.fw-imp-pick button{flex:none}
	.fw-imp-daysrow{grid-template-columns:minmax(0, 1fr)}
	.fw-imp-nav{display:none}
	.fw-imp-days{margin-inline:calc(var(--pad) * -1);padding-inline:var(--pad)}
	.fw-imp-day{width:54px;height:72px}
	.fw-imp-figs dd{font-size:19px}
	.fw-imp-key em{margin-left:0;flex-basis:100%}
	.fw-imp-vs tbody th{width:auto;display:block;padding-bottom:0}
	.fw-imp-vs tbody tr{display:grid;grid-template-columns:1fr 1fr;column-gap:12px}
	.fw-imp-vs tbody th{grid-column:1 / -1}
	.fw-imp-vs thead tr{display:grid;grid-template-columns:1fr 1fr;column-gap:12px}
	.fw-imp-vs thead th:first-child{display:none}
	.fw-imp-vs tbody th,.fw-imp-vs tbody td{border-top:0}
	.fw-imp-vs tbody tr{border-top:1px solid var(--line-soft);padding:6px 0}
	.fw-imp-vs tbody td{font-size:14px}
	.fw-imp-rung{grid-template-columns:minmax(0, 1fr);gap:6px}
	.fw-imp-topics{flex-wrap:nowrap;overflow-x:auto;margin-inline:calc(var(--pad) * -1);padding:2px var(--pad);width:calc(100% + var(--pad) * 2);scrollbar-width:none}
	.fw-imp-topics button{flex:none}
	.fw-imp-qa summary{grid-template-columns:minmax(0, 1fr) 24px;row-gap:6px}
	.fw-imp-qa__t{grid-column:1 / -1}
	.fw-imp-qa details p{padding:0 0 18px}
	.fw-imp-pick button{height:44px;padding-right:16px;font-size:14.5px}
	.fw-imp-pick__ico{width:32px;height:32px}
	.fw-imp-help{grid-template-columns:minmax(0, 1fr);gap:16px}
	.fw-imp-help li{grid-template-columns:42px minmax(0, 1fr);column-gap:14px;row-gap:2px}
	.fw-imp-help__ico{grid-row:span 2;margin:0}
	.fw-imp-help li + li::before{left:0;right:0;top:-8px;bottom:auto;width:auto;height:1px;background:var(--fade)}
	.fw-imp-close__pic{aspect-ratio:4/3}
}

@media (prefers-reduced-motion:reduce){
	.fw-imp *,.fw-imp *::before,.fw-imp *::after{transition:none !important;animation:none !important}
	.fw-imp.fw-imp-anim [data-imp-reveal]{opacity:1;transform:none}
}