/* Huaqi · shared components. Responsive shell rules live in mobile-app.css. */
:root{color-scheme:light;--bg:#f7f4f0;--card:#fffdfa;--ink:#393441;--muted:#8b8490;--line:#eae5e8;--purple:#7d6a91;--soft:#f0eaf4;--pink:#b8798f;--pinkbg:#f5e6eb;--green:#7d9b8c;--greenbg:#edf3ef;--fertility-ink:#597769;--record-fill:#f0dde5;--record-ink:#96667c;--forecast-fill:#fcf4f7;--forecast-line:#c0a0b0;--shadow:0 4px 24px #51415b04;--danger:#a75c6c;--radius:22px;--safe-top:var(--safe-area-inset-top,env(safe-area-inset-top,0px));--safe-bottom:var(--safe-area-inset-bottom,env(safe-area-inset-bottom,0px))}
:root[data-theme=dark]{color-scheme:dark;--bg:#211f25;--card:#2a272f;--ink:#eee7ef;--muted:#b5aab9;--line:#3d3742;--purple:#b8a2ca;--soft:#3a3142;--pink:#d3a1b4;--pinkbg:#49333e;--green:#9ab7a6;--greenbg:#303c35;--fertility-ink:#b0ccba;--record-fill:#4a3540;--record-ink:#e0b8ca;--forecast-fill:#31282f;--forecast-line:#967888;--shadow:none;--danger:#dfa1ac}
@media(prefers-color-scheme:dark){:root:not([data-theme=light]):not([data-theme=dark]){color-scheme:dark;--bg:#211f25;--card:#2a272f;--ink:#eee7ef;--muted:#b5aab9;--line:#3d3742;--purple:#b8a2ca;--soft:#3a3142;--pink:#d3a1b4;--pinkbg:#49333e;--green:#9ab7a6;--greenbg:#303c35;--fertility-ink:#b0ccba;--record-fill:#4a3540;--record-ink:#e0b8ca;--forecast-fill:#31282f;--forecast-line:#967888;--shadow:none;--danger:#dfa1ac}}
*{box-sizing:border-box}html{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei UI","Microsoft YaHei",Arial,sans-serif}body{margin:0;background:var(--bg);color:var(--ink);font-size:15px;font-weight:400;font-variant-numeric:tabular-nums;-webkit-font-smoothing:antialiased}button,input,select{font:inherit}button{cursor:pointer;color:inherit}button,a,input,select{touch-action:manipulation;-webkit-tap-highlight-color:transparent}button:disabled{opacity:.4;cursor:default}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible{outline:2px solid var(--purple);outline-offset:3px}a{color:var(--purple)}[hidden]{display:none!important}h2,h3,p{overflow-wrap:break-word}h2,h3{margin:0;font-weight:500}h2{font-size:20px}svg{width:22px;height:22px;fill:none;stroke:currentColor;stroke-width:1.4;stroke-linecap:round;stroke-linejoin:round}
.icon-button{display:inline-grid;place-items:center;width:44px;height:44px;flex-shrink:0;background:transparent;border:0;border-radius:14px;font-size:28px;font-weight:400}.icon-button:hover,.detail-trigger:hover{background:var(--soft)}.primary{background:var(--purple);color:var(--card);border:0;min-height:48px;border-radius:14px;padding:12px 24px;font-size:14px;font-weight:500;letter-spacing:.3px}.primary:disabled{opacity:.4}.text-button{border:0;background:transparent;color:var(--purple);padding:10px 0;min-height:40px;font-size:13px}.block-button{width:100%;text-align:left;display:flex;align-items:center;justify-content:space-between;gap:12px;border:0;background:transparent;padding:17px 0;min-height:48px;border-bottom:1px solid var(--line);font-size:14px}.danger{color:var(--danger)}.muted,.metric-label,.note{color:var(--muted)}.metric-label{font-size:12px;line-height:1.6;margin:0}.note{font-size:12px;line-height:1.9;margin:16px 0 0}.eyebrow{font-size:11px;letter-spacing:1.5px;color:var(--muted);margin:0 0 8px}.error{color:var(--danger);font-size:12px;line-height:1.8}.card{min-width:0;background:var(--card);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:22px}
.web-support{margin:20px 0;padding:0 0 18px;border-bottom:1px solid var(--line)}.web-status{margin:12px 0;font-size:12px;line-height:1.7}.web-status>div{display:grid;grid-template-columns:72px minmax(0,1fr);gap:12px;padding:5px 0}.web-status dt{color:var(--muted)}.web-status dd{margin:0;overflow-wrap:anywhere}.web-actions{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}.web-actions button{border:1px solid var(--line);background:var(--bg);color:var(--purple);border-radius:12px;min-height:44px;padding:10px 12px;font-size:12px}.web-support .note{margin-top:8px}
/* Header and forecast: date first, countdown quiet. */
.top{display:grid;grid-template-columns:minmax(0,1fr) auto minmax(0,1fr);align-items:center;gap:8px}.brand{display:flex;align-items:center;gap:7px;white-space:nowrap;letter-spacing:1px;font-size:21px}.brand-icon{font-family:Georgia,serif;color:var(--purple);font-size:33px;line-height:1;transform:rotate(-15deg)}.top-tools{display:flex;justify-self:end;gap:0}.top-tools svg{width:21px;height:21px}.today-heading{display:flex;flex-direction:column;align-items:center;gap:3px;white-space:nowrap}.today-heading>span{font-size:10px;color:var(--muted);letter-spacing:.6px}.today-heading>time{font-size:20px;line-height:1.3;font-weight:500;letter-spacing:.3px}.hero{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:10px 5px}.hero-copy{min-width:0;flex:1}.prediction-label{font-size:12px;color:var(--purple);margin:0 0 5px;line-height:1.4;letter-spacing:.5px}.hero h1{margin:0;font-size:34px;line-height:1.2;letter-spacing:-.6px;font-weight:500}.hero .muted{margin:7px 0 0;line-height:1.5;font-size:12px}.prediction-badge{flex-shrink:0;max-width:40%;display:flex;flex-direction:column;align-items:flex-end;justify-content:center;gap:4px;padding:8px 0 8px 10px;background:transparent;border:0;color:var(--muted)}.prediction-badge>span{font-size:11px}.prediction-badge>strong{font-size:19px;line-height:1.3;font-weight:500;color:var(--purple);white-space:nowrap}.prediction-badge small{font-size:12px;font-weight:400}.demo-banner{display:flex;align-items:center;justify-content:space-between;gap:8px;background:var(--soft);color:var(--purple);font-size:11px;border-radius:10px;padding:5px 12px;line-height:1.6}.demo-banner button{border:0;background:none;color:inherit;text-decoration:underline;min-height:26px;font-size:11px;padding:0}
/* Calendar. Ribbons occupy a separate layer beneath text, selection and marks. */
.calendar{display:grid;grid-template-rows:auto auto minmax(0,1fr) auto;min-height:0;overflow:hidden}.section-heading{display:flex;align-items:center;justify-content:space-between;gap:8px;margin-bottom:12px}.section-heading h2{font-size:19px;white-space:nowrap}.calendar-controls{display:flex;align-items:center;gap:0;flex-shrink:0}.calendar-controls .icon-button{width:38px;height:40px;font-size:27px}.today-button{min-height:34px;background:transparent;border:1px solid var(--line);border-radius:11px;color:var(--muted);font-size:12px;padding:6px 12px;margin-right:3px}.weekdays,.calendar-grid{display:grid;grid-template-columns:repeat(7,minmax(0,1fr));text-align:center}.weekdays{color:var(--muted);font-size:11px;margin-bottom:8px;min-height:20px;align-items:center}.calendar-grid{column-gap:0;row-gap:5px;align-items:stretch;grid-auto-rows:minmax(0,1fr);touch-action:pan-y;user-select:none;-webkit-user-select:none}.day{position:relative;isolation:isolate;display:grid;place-items:center;width:100%;height:100%;min-width:0;min-height:38px;padding:0 0 8px;border:0;border-radius:11px;background:transparent;font-size:15px;font-weight:400;line-height:1.2;color:var(--ink)}.day::before{content:none;position:absolute;z-index:-1;inset:3px 0;pointer-events:none}.day.actual{color:var(--record-ink);font-weight:500}.day.actual::before{content:"";background:var(--record-fill)}.day.predicted{color:var(--record-ink)}.day.predicted::before{content:"";background:var(--forecast-fill);border-top:1px dashed var(--forecast-line);border-bottom:1px dashed var(--forecast-line)}.day.ribbon-start::before{border-radius:12px 0 0 12px}.day.ribbon-end::before{border-radius:0 12px 12px 0}.day.ribbon-start.ribbon-end::before{border-radius:12px}.day.predicted.ribbon-start::before{border-left:1px dashed var(--forecast-line)}.day.predicted.ribbon-end::before{border-right:1px dashed var(--forecast-line)}.day.outside{color:color-mix(in srgb,var(--muted) 55%,var(--card))}.day.outside.actual,.day.outside.predicted{color:color-mix(in srgb,var(--record-ink) 55%,var(--card))}.day.outside::before{opacity:.55}.day-number{position:relative;z-index:1}.day.selected{outline:1.5px solid var(--purple);outline-offset:-3px}.day:focus-visible{outline:2px solid var(--purple);outline-offset:-2px}.day.is-today .day-number{color:var(--purple);font-weight:600}.today-label{position:absolute;z-index:2;top:3px;right:4px;display:grid;place-items:center;min-width:11px;height:12px;padding:0 2px;border-radius:4px;font-size:8px;line-height:1;color:var(--card);background:var(--purple)}.day.is-today.actual .today-label{background:var(--record-ink)}.fertility-mark,.chance-key{display:inline-block;width:10px;height:9px;fill:var(--green);stroke:none;background:transparent;border:0;flex-shrink:0;opacity:var(--chance-strength,.5)}.day .fertility-mark{position:absolute;z-index:2;left:calc(50% - 5px);bottom:4px;pointer-events:none}.legend{display:flex;align-items:center;flex-wrap:wrap;gap:8px 17px;margin:14px 0 0;color:var(--muted);font-size:11px;min-height:18px}.legend>span{display:flex;align-items:center;gap:6px}.dot{display:inline-block;flex-shrink:0;width:8px;height:8px;border-radius:50%}.recorded-dot{background:var(--record-fill);border:1px solid color-mix(in srgb,var(--record-ink) 55%,transparent)}.predicted-dot{background:var(--forecast-fill);border:1px dashed var(--forecast-line)}#fertileLegend .fertility-mark{opacity:.75}
/* One compact summary, with distinct content only after opening details. */
.insights{display:grid;grid-template-rows:auto minmax(0,1fr);gap:12px;min-height:0}.date-title{display:flex;align-items:center;justify-content:space-between;gap:8px;min-width:0}.date-title h2{font-size:16px;font-weight:500;white-space:nowrap}.date-title h2 .metric-label{font-size:11px;font-weight:400}.detail-trigger{display:flex;align-items:center;justify-content:center;gap:5px;flex-shrink:0;border:0;border-radius:10px;background:transparent;color:var(--purple);font-size:12px;min-height:40px;min-width:60px;padding:6px;margin-right:-6px}.insight-summary{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:18px;align-items:center}.combined-summary>div{min-width:0}.mini-number{display:block;font-size:38px;font-weight:400;line-height:1.15;color:var(--purple);letter-spacing:-1px;margin-top:4px}.mini-number small{font-size:16px;letter-spacing:0;margin-left:2px}.number-prefix{font-size:14px;letter-spacing:0;margin-right:4px}.mini-secondary{border-left:1px solid var(--line);padding-left:20px;display:flex;flex-direction:column;align-items:flex-start;justify-content:center;gap:5px;min-width:0}.mini-secondary>strong{font-size:20px;font-weight:500;line-height:1.4}.mini-secondary>span,.summary-caption{display:block;font-size:11px;line-height:1.5;color:var(--muted)}.summary-caption{margin-top:5px}.mini-secondary>.combined-chance{font-size:34px;line-height:1.2;font-weight:400;letter-spacing:-.5px;color:var(--fertility-ink)}.mini-secondary>.low-chance{font-size:26px}.mini-secondary>.compact-range{font-size:14px}.mini-secondary .record-end{font-size:18px}.summary-value{display:block;font-size:20px;font-weight:400;line-height:1.5;margin-top:4px}.conception-label{display:flex;align-items:center;gap:5px;color:var(--fertility-ink)}.conception-label .chance-key{opacity:.7}.summary-empty{display:flex;flex-direction:column;align-items:flex-start;justify-content:center;gap:4px;min-height:72px}.summary-title{font-size:17px;font-weight:400;line-height:1.6;margin:0}.summary-empty .text-button{padding:4px 0;min-height:32px}
/* Three aligned controls. The two existing switches keep their semantics. */
.action-area{display:grid;grid-template-columns:repeat(2,minmax(0,1fr)) minmax(66px,.58fr);gap:10px;align-items:stretch;max-width:640px;width:100%;margin:0 auto}.daily-switches,.daily-controls{display:contents}.daily-control,.backfill-button{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:8px;min-width:0;min-height:76px;padding:10px 6px;border:1px solid var(--line);border-radius:19px;font-size:14px;font-weight:400;background:var(--card);color:var(--ink);box-shadow:var(--shadow)}.daily-control{cursor:pointer;white-space:nowrap}.daily-control:has(input:checked){background:color-mix(in srgb,var(--soft) 36%,var(--card));border-color:color-mix(in srgb,var(--purple) 22%,var(--line))}.daily-control:has(input:disabled){color:var(--muted);cursor:default}.toggle{appearance:none;-webkit-appearance:none;position:relative;display:inline-block;flex-shrink:0;width:42px;height:25px;margin:0;border:0;border-radius:999px;background:color-mix(in srgb,var(--muted) 28%,var(--card));cursor:pointer;transition:background .18s ease}.toggle::before{content:"";position:absolute;top:3px;left:3px;width:19px;height:19px;background:#fff;border-radius:50%;box-shadow:0 1px 3px #3020380c;transition:transform .18s ease}.toggle:checked{background:var(--purple)}.toggle:checked::before{transform:translateX(17px)}.toggle:disabled{opacity:.4;cursor:default}.backfill-button{background:var(--soft);border-color:color-mix(in srgb,var(--purple) 12%,var(--line));color:var(--purple);gap:5px}.backfill-button>span:first-child{font-size:24px;line-height:1}.backfill-button:hover{background:color-mix(in srgb,var(--purple) 10%,var(--soft))}
/* Dialogs and shared form components. Only the informational sheet has a grip. */
dialog{border:1px solid var(--line);border-radius:26px;background:var(--card);color:var(--ink);padding:24px;width:min(480px,calc(100% - 24px));max-height:88dvh;overflow:auto;overscroll-behavior:contain;-webkit-overflow-scrolling:touch;box-shadow:0 20px 90px #30203820}dialog::backdrop{background:#32263b38;backdrop-filter:blur(5px)}.sheet-grip{display:grid;place-items:center;height:24px;margin:-14px 0 12px;touch-action:none;cursor:grab}.sheet-grip::before{content:"";display:block;width:32px;height:4px;border-radius:999px;background:color-mix(in srgb,var(--muted) 30%,var(--card))}.sheet-header{display:flex;align-items:center;justify-content:space-between;gap:14px;margin-bottom:20px}.sheet-header h2{font-size:22px;font-weight:500;line-height:1.4}.sheet-header .eyebrow{font-size:10px;margin-bottom:5px}.sheet-header .icon-button{position:relative;width:44px;height:44px;color:var(--muted);font-size:25px;border-radius:14px;background:transparent}.sheet-header .icon-button:hover{background:var(--soft)}#sheetBody .note{overflow-wrap:anywhere}.field{display:block;margin:18px 0;color:var(--muted);font-size:13px}.field input,.field select{display:block;width:100%;margin-top:8px;min-height:48px;border:1px solid var(--line);border-radius:13px;background:var(--bg);color:var(--ink);padding:10px 12px;font-size:16px;min-width:0}.setting-row{display:flex;align-items:center;justify-content:space-between;gap:15px;padding:15px 0;border-bottom:1px solid var(--line);font-size:14px}.setting-row small{display:block;color:var(--muted);font-size:11px;line-height:1.8;margin-top:4px}.form-actions{display:flex;justify-content:flex-end;gap:12px;margin-top:24px}.history-item{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:15px 0;border-bottom:1px solid var(--line)}.history-item p{font-size:13px;margin:0 0 5px}.history-item small{font-size:11px;color:var(--muted)}.method-copy{font-size:13px;line-height:1.95;color:var(--muted)}.method-copy h3{font-size:15px;color:var(--ink);margin:22px 0 7px}.method-copy a{overflow-wrap:anywhere}.empty-body{font-size:13px;line-height:1.9;color:var(--muted);margin:8px 0}.detail-group,.fertility-facts{background:var(--bg);border-radius:16px;padding:15px;margin:16px 0}.detail-group p{font-size:14px;line-height:1.7}.secondary-metric{display:flex;justify-content:space-between;gap:12px;padding:15px 0;border-bottom:1px solid var(--line);font-size:13px;color:var(--muted);line-height:1.7}.secondary-metric strong{color:var(--ink);white-space:nowrap;font-weight:500}.probability{font-size:52px;font-weight:300;line-height:1.2;letter-spacing:-1px;color:var(--purple);margin:16px 0}.detail-tabs,.range-mode{display:grid;grid-template-columns:1fr 1fr;gap:4px;padding:4px;border-radius:14px;background:var(--bg);margin:0 0 20px}.detail-tabs button,.range-mode button{border:0;background:transparent;color:var(--muted);border-radius:10px;min-height:42px;padding:9px 6px;font-size:13px}.detail-tabs button[aria-pressed=true],.range-mode button[aria-pressed=true]{background:var(--card);color:var(--purple);box-shadow:0 1px 6px #30203805}.conception-probability{font-size:52px;font-weight:300;line-height:1.2;letter-spacing:-1px;color:var(--fertility-ink);margin:6px 0 12px}.chance-tag{display:inline-block;padding:6px 11px;border-radius:999px;font-size:11px;color:var(--fertility-ink);background:var(--greenbg)}.fertility-chart{margin:22px 0 12px}.fertility-chart svg{display:block;width:100%;height:auto;overflow:visible;fill:none;stroke:none}.curve-area{fill:var(--green);fill-opacity:.1}.curve-line{fill:none;stroke:var(--green);stroke-width:2;stroke-linecap:round;stroke-linejoin:round}.curve-guide{stroke:var(--green);stroke-opacity:.4;stroke-width:1;stroke-dasharray:2 3}.curve-point{fill:var(--green);stroke:var(--card);stroke-width:2}.chart-labels{display:flex;justify-content:space-between;gap:8px;font-size:10px;color:var(--muted);margin-top:5px}.fertility-facts{padding:3px 15px}.fertility-facts>div{display:flex;align-items:center;justify-content:space-between;gap:14px;padding:13px 0;border-bottom:1px solid var(--line);font-size:12px}.fertility-facts>div:last-child{border:0}.fertility-facts span{color:var(--muted);flex-shrink:0}.fertility-facts strong{font-weight:500;text-align:right}.lh-section{margin:24px 0 10px}.lh-section h3{font-size:15px;margin-bottom:12px}.lh-section h3 span{font-size:11px;font-weight:400;color:var(--muted);margin-left:5px}.lh-options{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:7px}.lh-options button{min-height:44px;border:1px solid var(--line);border-radius:12px;background:transparent;color:var(--muted);font-size:13px}.lh-options button[aria-pressed=true]{background:var(--greenbg);border-color:var(--green);color:var(--fertility-ink)}.lh-options button[data-lh=positive][aria-pressed=true]{background:var(--fertility-ink);color:var(--card)}details summary{cursor:pointer;color:var(--purple);font-size:13px;padding:15px 0}
/* Explicit two-tap range selection, confirmation and overlap review. */
.range-hint{font-size:12px;color:var(--muted);line-height:1.7;min-height:22px;margin:0 0 12px}.range-month{display:flex;align-items:center;justify-content:space-between;margin:0 0 8px}.range-month h3{font-size:18px}.range-grid{display:grid;grid-template-columns:repeat(7,minmax(0,1fr));gap:4px 0}.range-day{position:relative;min-width:0;min-height:42px;padding:8px 0;border:0;border-radius:11px;background:transparent;color:var(--ink);font-size:14px}.range-day.outside{color:var(--muted)}.range-day:disabled{opacity:.25;cursor:default}.range-day.is-today{outline:1px solid var(--purple);outline-offset:-3px;color:var(--purple);font-weight:500}.range-day.in-range{background:var(--soft);color:var(--purple);border-radius:0}.range-day.range-endpoint{background:var(--purple);color:var(--card);border-radius:11px;outline:none}.range-day i{position:absolute;width:4px;height:4px;border-radius:50%;background:var(--pink);bottom:4px;left:calc(50% - 2px)}.range-day.range-endpoint i{background:var(--card)}.range-key{display:flex;gap:18px;color:var(--muted);font-size:11px;margin:14px 0}.range-key>span{display:flex;align-items:center;gap:5px}.range-dot{background:var(--purple)}.range-summary{border-radius:13px;background:var(--soft);color:var(--purple);font-size:12px;padding:12px 13px;line-height:1.8;min-height:46px}.range-actions{position:sticky;z-index:3;bottom:calc(-22px - var(--safe-bottom));display:grid;grid-template-columns:1fr 1.3fr;align-items:center;gap:12px;background:var(--card);border-top:1px solid var(--line);margin:14px -4px -4px;padding:12px 4px 4px}.range-actions .primary{min-height:46px;font-size:14px;padding:10px 12px}.range-actions .text-button{min-height:46px}.range-options{margin-top:8px}.range-options .setting-row{font-size:13px}.range-options summary{padding:10px 0}.overlap-review{padding:16px;border:1px solid color-mix(in srgb,var(--pink) 40%,var(--line));border-radius:16px;margin:14px 0;background:var(--pinkbg)}.overlap-review h3{font-size:14px;margin:0 0 8px}.overlap-review p{font-size:12px;line-height:1.8;margin:0}.overlap-review ul{font-size:12px;line-height:1.9;padding-left:18px;margin:10px 0 14px}.review-actions{display:grid;grid-template-columns:1fr 1.2fr;gap:9px}.review-actions button{border:1px solid var(--pink);border-radius:11px;min-height:44px;font-size:13px;padding:9px 5px;background:transparent}.review-actions .confirm-overlap{background:var(--purple);border-color:var(--purple);color:var(--card)}.delete-mode #rangeDeleteMode[aria-pressed=true]{color:var(--danger)}.delete-mode .range-day.in-range{background:color-mix(in srgb,var(--danger) 12%,var(--card));color:var(--danger)}.delete-mode .range-day.range-endpoint,.delete-mode #rangeConfirm{background:var(--danger);color:var(--card)}
.toast{position:fixed;z-index:10;bottom:calc(100px + var(--safe-bottom));left:50%;transform:translateX(-50%);max-width:calc(100% - 32px);width:max-content;pointer-events:none;background:var(--ink);color:var(--card);border-radius:16px;padding:11px 17px;font-size:12px;line-height:1.7;box-shadow:0 6px 30px #0001}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{scroll-behavior:auto!important;transition:none!important;animation:none!important}}