@font-face{font-family:"Pretendard Variable";font-weight:45 920;font-style:normal;font-display:swap;src:url("fonts/PretendardVariable.woff2") format("woff2")}
/* PairLens — monochrome surfaces and interaction states. */
:root{
  color-scheme:light;
  --bg:#F6F6F6;--paper:#FFFFFF;--ink:#161616;--muted:#737373;
  --line:#DEDEDE;--soft:#F5F5F5;--accent:#202020;--selected-surface:#EBEBEB;
  --secondary-on-bg:#686868;--control-border:#888888;--danger:#333333;
  font-family:"Pretendard Variable",Pretendard,-apple-system,BlinkMacSystemFont,"Apple SD Gothic Neo","Noto Sans CJK KR","Noto Sans KR","Malgun Gothic",Arial,sans-serif;
}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--ink);font-size:1rem;line-height:1.6}
h1,h2,h3,p{margin:0}
button,input,select{font:inherit}
button{cursor:pointer}
button,a,input,select,summary{-webkit-tap-highlight-color:transparent}
button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,summary:focus-visible{outline:2px solid var(--accent);outline-offset:4px}
a{color:inherit;text-underline-offset:4px}
[hidden]{display:none!important}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
/* A clear, reserved masthead; atmosphere starts inside the entry stage below it. */
.page-header{position:relative;z-index:2;text-align:center;padding:34px 24px 26px;background:var(--bg)}
.wordmark{font-size:2.5rem;font-weight:650;line-height:1.2;letter-spacing:-1.9px;color:var(--ink)}
main{padding:0 0 48px}
.entry-stage{position:relative;isolation:isolate;padding:0 0 12px}
.entry-atmosphere,.result-atmosphere{display:none}
.mode-switch{display:flex;width:220px;max-width:calc(100% - 48px);margin:0 auto 24px;border-bottom:1px solid var(--line)}
.mode-switch button{width:50%;padding:10px 8px;margin-bottom:-1px;background:none;border:0;border-bottom:2px solid transparent;color:var(--muted);font-size:0.875rem}
.mode-switch button[aria-pressed=true]{border-bottom-color:var(--accent);background:transparent;color:var(--ink);font-weight:650}
#birth-form{width:calc(100% - 40px);max-width:390px;margin:0 auto}
.people,.single .people{display:grid;grid-template-columns:minmax(0,1fr);gap:10px}
.person{min-width:0;padding:20px 22px;border:1px solid var(--line);border-radius:16px;background:var(--paper);box-shadow:0 2px 8px #16161603}
.person h2{font-size:1.062rem;line-height:1.5;font-weight:650;text-align:left;display:flex;align-items:center;gap:9px;margin:0 0 16px}
.person h2::before{content:"";display:block;width:5px;height:14px;border-radius:2px;background:var(--line)}
label{display:block;font-size:0.875rem;color:var(--ink);margin-bottom:8px}
label span{color:var(--muted);font-weight:400}
.field{margin:0 0 14px}
.field:last-child{margin-bottom:0}
.birth-date{padding:0;border:0;min-width:0}
.birth-date legend{padding:0;margin-bottom:8px;font-size:0.875rem;color:var(--ink)}
.birth-date legend span{color:var(--muted);margin-left:4px}
.date-parts{display:grid;grid-template-columns:minmax(0,1.55fr) repeat(2,minmax(0,1fr));gap:8px}
.date-parts label{margin:0;min-width:0;position:relative}
input[type=time],input[type=date],select,.date-parts input{display:block;width:100%;min-width:0;max-width:100%;height:2.75em;min-height:44px;border:1px solid var(--control-border);border-radius:8px;padding:6px 10px;background:var(--paper);color:var(--ink);font-size:1rem}
.date-parts input{padding-right:27px}
.date-parts input::placeholder{color:transparent}
.date-unit{position:absolute;right:10px;top:50%;transform:translateY(-50%);pointer-events:none;color:var(--muted);font-size:0.875rem}
input[type=time],input[type=date]{appearance:none;-webkit-appearance:none}
input::-webkit-date-and-time-value{text-align:left}
input:disabled,select:disabled{background:var(--soft);color:var(--muted);border-color:var(--line);opacity:1;cursor:default}
.time-label{display:flex;align-items:center;justify-content:space-between;gap:8px;flex-wrap:wrap}
.check{display:flex;align-items:center;gap:6px;color:var(--muted);white-space:nowrap}
.check input{width:16px;height:16px;margin:0;accent-color:var(--accent)}
.timezone{font-size:0.875rem;color:var(--muted)}
.timezone summary{cursor:pointer;width:fit-content}
.timezone label{margin-top:14px}
.hint{font-size:0.875rem;color:var(--muted);line-height:1.65;margin-top:10px;overflow-wrap:anywhere}
.swap-people{justify-self:center;display:grid;place-items:center;width:44px;height:44px;border:1px solid var(--line);border-radius:50%;background:var(--paper);color:var(--ink);font-size:1.438rem;line-height:1;transform:rotate(90deg)}
.swap-people:hover{background:var(--soft);color:var(--accent)}
.single .swap-people{display:none}
.primary{display:block;width:100%;min-height:50px;margin:22px auto 0;padding:11px 20px;border-radius:12px;border:1px solid transparent;font-size:1rem;font-weight:700}
#calculate{background:var(--accent);color:var(--paper);box-shadow:none}
#calculate:hover{background:#383838}
#calculate:active{background:#484848}
.primary:disabled{opacity:.6;cursor:default}
.privacy{font-size:0.8125rem;text-align:center;color:var(--muted);margin-top:12px}
#error{margin-top:18px;color:var(--danger);font-size:0.875rem;text-align:center}
/* The result has its own edge-to-edge atmosphere and a narrow reading column. */
#result-panel{position:relative;isolation:isolate;margin-top:36px;padding:52px 0 64px;scroll-margin-top:24px}
.result-heading,#results{width:calc(100% - 48px);max-width:440px;margin-left:auto;margin-right:auto}
.result-heading{margin-bottom:24px}
.result-heading h2{font-size:1.188rem;font-weight:600;letter-spacing:-.3px}
.result-heading p{font-size:0.875rem;color:var(--muted);margin-top:5px;overflow-wrap:anywhere}
#results,.single-results{display:grid;gap:14px}
.relation-card,.single-card{min-width:0;padding:24px 22px;border:1px solid var(--line);border-radius:16px;background:var(--paper);box-shadow:0 2px 8px #16161603}
.basis{display:inline-block;font-size:0.875rem;font-weight:500;color:var(--muted);border:1px solid var(--line);border-radius:6px;padding:2px 8px;line-height:1.6;margin-bottom:15px}
.relation-heading{margin-bottom:20px}
.relation-name,.possible-title{font-size:1.875rem;line-height:1.35;font-weight:650;letter-spacing:-.8px;color:var(--ink);word-break:keep-all;overflow-wrap:anywhere}
.result-people{display:grid}
.result-person{display:grid;grid-template-columns:2.2rem minmax(0,1fr) auto;gap:10px;align-items:baseline;padding:12px 0}
.result-person+.result-person{border-top:1px solid var(--line)}
.person-label{font-size:0.875rem;color:var(--muted)}
.mansion{font-size:1.062rem;font-weight:600;min-width:0}
.hanja{margin-left:6px;font-size:inherit;font-weight:400;color:var(--muted)}
.role{font-size:0.875rem;font-weight:500;padding:2px 9px;border:1px solid var(--line);border-radius:6px;color:var(--ink);line-height:1.5;white-space:nowrap}
.result-pair-summary{border-top:1px solid var(--line);padding-top:2px}
.possible-list{display:grid;gap:0;margin-top:4px}
.possible-option{display:flex;justify-content:space-between;align-items:baseline;gap:12px;padding:13px 0;border-bottom:1px solid var(--line);font-size:1rem;font-weight:500;color:var(--ink)}
.possible-option strong{font-size:1.25rem;font-weight:650;color:var(--ink);font-variant-numeric:tabular-nums;white-space:nowrap}
.result-detail{font-size:0.875rem;color:var(--muted)}
.result-detail summary{cursor:pointer;padding:10px 0;min-height:44px}
#results>.result-detail{padding:8px 16px;border:1px solid var(--line);border-radius:12px;background:var(--paper)}
.possibility{line-height:1.8;margin:10px 0;overflow-wrap:anywhere}
.combinations{font-size:1rem;margin-top:18px;border-top:1px solid var(--line)}
.combinations>summary{font-weight:600;color:var(--ink);padding:14px 0 4px}
.combination-list{display:grid;gap:12px;margin:14px 0 0;padding:0;list-style:none}
.combination{padding:14px;background:var(--soft);border:1px solid var(--line);border-radius:12px;color:var(--ink)}
.combination-title{display:flex;justify-content:space-between;gap:10px;flex-wrap:wrap;padding-bottom:10px;border-bottom:1px solid var(--line)}
.combination-title strong,.combination-percent{font-weight:700}
.combination-percent{color:var(--ink);font-variant-numeric:tabular-nums}
.combination .result-person,.combination .person-label,.combination .mansion,.combination .hanja,.combination .role{font-size:1rem}
.combination .result-person{grid-template-columns:2.2rem minmax(0,1fr) auto;gap:8px}
.combination .mansion{font-weight:700}
.combination .result-person:last-child{padding-bottom:0}
.single-card .mansion{font-size:1.75rem;line-height:1.5}
.single-card .hint .hanja{font-size:inherit}
.methods,#advice-footer{width:calc(100% - 48px);max-width:440px;margin-left:auto;margin-right:auto}
.methods{margin-top:34px;padding-top:20px;border-top:1px solid var(--line);color:var(--muted);font-size:0.875rem}
.methods>summary{text-align:center;cursor:pointer;list-style:none;padding:8px 0}
.methods>summary::-webkit-details-marker{display:none}
.methods>summary::after{content:' +';margin-left:8px;color:var(--accent)}
.methods[open]>summary::after{content:' −'}
#method-details details{padding:18px 0;border-bottom:1px solid var(--line)}
#method-details summary{cursor:pointer;color:var(--ink)}
#method-details p{margin-top:12px;line-height:1.8;overflow-wrap:anywhere}
.formula{display:block;padding:12px;background:var(--soft);color:var(--ink);margin-top:12px}
.advice-prompt{text-align:center;margin-top:42px}
.advice-prompt h3{font-size:1rem;font-weight:600;line-height:1.6}
.advice-prompt>p{font-size:0.875rem;color:var(--muted);margin-top:5px}
.advice-prompt .primary{width:auto;min-height:44px;padding:8px 12px;margin-top:12px;background:none;color:var(--muted);border:0;text-decoration:underline;text-underline-offset:4px;font-size:0.875rem;font-weight:400}
.advice-prompt .primary:disabled{opacity:1}
.advice-prompt .availability{font-size:0.75rem;margin-top:2px}
@media(max-width:600px){
 .page-header{padding:28px 20px 24px}.wordmark{font-size:2.25rem;letter-spacing:-1.7px}
 .person{padding:18px 20px}.entry-atmosphere::before{left:calc(50% + 90px);top:70px}
 #result-panel{padding:44px 0 52px;margin-top:28px}
 .relation-card,.single-card{padding:22px 18px}.relation-name,.possible-title{font-size:1.75rem}
 .result-atmosphere::before{width:330px;height:330px;left:calc(50% + 65px);top:155px}
}
@media(max-width:360px){
 #birth-form{width:calc(100% - 32px)}.person{padding:16px}
 .result-heading,#results{width:calc(100% - 32px)}
 .relation-card,.single-card{padding:20px 16px}.result-person{gap:7px}
}
@media(prefers-reduced-transparency:reduce){.person,.relation-card,.single-card{background:var(--paper);backdrop-filter:none;-webkit-backdrop-filter:none}}
@media(prefers-reduced-motion:no-preference){button{transition:background-color .15s,color .15s}}
/* Input, result and verification hierarchy share the established Pairlens theme. */
.birth-place{margin-top:16px}.birth-place select{height:auto;min-height:44px}
.zone-status{font-size:.875rem;color:var(--accent);margin-top:8px}
.timezone summary{min-height:44px;padding:10px 0;width:100%}
.timezone .check{margin-top:12px}.timezone .check input{flex-shrink:0}
.field-error{font-size:.875rem;color:var(--danger);margin-top:8px;line-height:1.6}
[aria-invalid=true]{border:2px solid var(--danger)!important;background:var(--paper)!important}
.result-guide,#result-update{width:calc(100% - 48px);max-width:440px;margin:0 auto 20px;font-size:.9375rem;line-height:1.7}
#result-update{border:1px solid var(--control-border);border-radius:12px;padding:14px 16px;background:var(--paper);color:var(--ink)}
.probability-explainer{margin:0 0 14px;font-size:.875rem;line-height:1.65}
.probability-explainer strong{font-weight:650}.single-card .result-heading h2:focus{outline:2px solid var(--accent);outline-offset:6px;border-radius:2px}
.advice-prompt{padding:20px;border-top:1px solid var(--line);margin-top:30px}
@media(min-width:850px){
 body:not(.single) #birth-form{max-width:850px}
 body:not(.single) .people{grid-template-columns:minmax(0,1fr) 44px minmax(0,1fr);align-items:start;gap:18px}
 body:not(.single) .swap-people{align-self:center;transform:none}
 body:not(.single) #calculate,body:not(.single) .privacy{max-width:390px;margin-left:auto;margin-right:auto}
 body:not(.single) .result-heading,body:not(.single) .result-guide,body:not(.single) #result-update,body:not(.single) #results,body:not(.single) .methods,body:not(.single) #advice-footer{max-width:850px}
 body:not(.single) #results{grid-template-columns:repeat(2,minmax(0,1fr));align-items:start;gap:20px}
 body:not(.single) #results>.relation-card:nth-child(3),body:not(.single) #results>.result-detail{grid-column:1/-1}
}
@media(max-width:360px){.result-guide,#result-update{width:calc(100% - 32px)}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important}}

/* Keep the single-person view free of decorative rings. */
.single .entry-atmosphere::before,.single .result-atmosphere::before{content:none;display:none}

/* Contrast and focus states shared by present and future controls. */
.privacy,.result-heading p,.mode-switch button,.advice-prompt>p{color:var(--secondary-on-bg)}
input:focus-visible,select:focus-visible{border-color:var(--accent);outline:2px solid var(--accent);outline-offset:2px}
.mode-switch button{min-height:44px}
#calculate:disabled{background:var(--line);color:var(--secondary-on-bg);opacity:1}

::selection{background:#DEDEDE;color:#161616}