:root{color-scheme:light;--ink:#172b36;--muted:#667b84;--teal:#0f766e;--mint:#55d8b6;--line:#dce6e7;--surface:#fff;--canvas:#f4f7f7;--soft:#e9f4f1;--shadow:0 16px 42px rgba(24,54,61,.07);font-family:"DM Sans","Noto Sans KR",sans-serif;font-synthesis:none;text-rendering:optimizeLegibility}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:90px}body{margin:0;background:var(--canvas);color:var(--ink);font-size:15px;line-height:1.65}a{color:inherit;text-decoration:none}button,input{font:inherit}button,a,input{-webkit-tap-highlight-color:transparent}.skip-link{position:absolute;top:-60px;left:14px;z-index:10;background:#fff;padding:10px 14px;border-radius:8px}.skip-link:focus{top:12px}.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}
.site-header{height:82px;max-width:1240px;margin:auto;padding:0 32px;display:flex;align-items:center;justify-content:space-between}.brand{display:inline-flex;align-items:center;gap:11px}.brand-mark{width:42px;height:42px;border-radius:13px;background:var(--teal);color:#fff;display:grid;place-items:center;font-size:21px;font-weight:800;box-shadow:0 7px 18px rgba(15,118,110,.2)}.brand strong{display:block;font-size:15px;line-height:1.15;letter-spacing:.09em}.brand strong i{font-style:normal;color:var(--teal)}.brand small{display:block;color:var(--muted);font-size:10px;letter-spacing:.04em;margin-top:3px}.main-nav{display:flex;align-items:center;gap:34px;color:#546a74;font-size:13px;font-weight:600}.main-nav a{padding:9px 0;transition:color .2s}.main-nav a:hover,.main-nav a.active{color:var(--teal)}.main-nav a:last-child{padding:9px 15px;border:1px solid var(--line);border-radius:999px;background:#fff}
main{max-width:1180px;margin:0 auto;padding:0 24px}.hero{position:relative;min-height:418px;margin:20px 0 76px;padding:58px 66px 20px;overflow:hidden;border:1px solid #e1eaea;border-radius:26px;background:linear-gradient(112deg,#fff 6%,#f8fcfb 58%,#e4f4ef 100%);box-shadow:var(--shadow);display:grid;grid-template-columns:1.1fr .9fr;align-items:center}.hero-copy{position:relative;z-index:1;padding-bottom:32px}.eyebrow{margin:0 0 13px;color:var(--teal);font-size:10px;font-weight:800;letter-spacing:.17em}.hero .eyebrow span{display:inline-block;width:7px;height:7px;margin-right:7px;border-radius:50%;background:var(--mint)}h1,h2,h3,p{margin-top:0}.hero h1{font-size:clamp(37px,5vw,59px);line-height:1.2;letter-spacing:-.055em;margin:0 0 16px;font-weight:800}.hero h1 em{font-style:normal;color:var(--teal)}.hero-description{max-width:430px;color:var(--muted);font-size:14px;margin-bottom:24px}.hero-link{display:inline-flex;align-items:center;gap:12px;color:var(--teal);font-size:13px;font-weight:700}.hero-link span{width:25px;height:25px;border:1px solid #bcdcd4;border-radius:50%;display:grid;place-items:center}.hero-art{height:280px;position:relative;display:grid;place-items:center}.art-orbit{position:absolute;border:1px solid rgba(15,118,110,.12);border-radius:50%;transform:rotate(-20deg)}.orbit-one{width:350px;height:215px}.orbit-two{width:300px;height:260px;transform:rotate(44deg)}.art-card{position:relative;z-index:1;width:min(300px,78%);padding:25px 26px;border-radius:19px;background:#fff;box-shadow:0 22px 55px rgba(21,79,71,.13);transform:rotate(-5deg)}.art-label{color:#89a29f;font-size:9px;font-weight:700;letter-spacing:.16em}.art-card strong{display:block;margin:13px 0 8px;font-size:37px;letter-spacing:-.06em}.art-card strong span{color:#7fa9a3;font-size:23px}.art-card strong b{color:var(--teal)}.art-card small{color:var(--muted);font-size:11px}.art-chip{position:absolute;z-index:2;padding:11px 16px;border:1px solid #e6efed;border-radius:13px;background:#fff;box-shadow:0 10px 24px rgba(25,58,56,.08);color:var(--teal);font-size:14px;font-weight:800}.chip-date{top:30px;right:4px;transform:rotate(8deg)}.chip-percent{bottom:23px;left:15px;color:#a67844;transform:rotate(-9deg)}.chip-percent b{margin-left:6px;color:var(--teal)}.art-dot{position:absolute;border-radius:50%;background:var(--mint);opacity:.65}.dot-one{width:10px;height:10px;top:30px;left:25px}.dot-two{width:6px;height:6px;bottom:45px;right:25px;background:#739aef}.hero-bottom{position:absolute;bottom:0;left:66px;right:66px;height:52px;border-top:1px solid #e4eceb;display:flex;align-items:center;gap:13px;color:#819197;font-size:10px;letter-spacing:.03em}.hero-bottom>span:first-child{color:var(--teal);font-weight:800}.hero-line{height:1px;background:#cfddda;flex:1;margin-left:10px}
.section{margin-bottom:78px}.section-heading{display:flex;align-items:flex-end;justify-content:space-between;gap:30px;margin-bottom:25px}.section-heading .eyebrow{margin-bottom:5px}.section-heading h2{font-size:29px;letter-spacing:-.045em;margin-bottom:5px}.section-heading p:not(.eyebrow){color:var(--muted);font-size:13px;margin-bottom:0}.search-box{width:250px;height:43px;padding:0 13px;display:flex;align-items:center;gap:8px;border:1px solid var(--line);border-radius:11px;background:#fff;color:#77908e}.search-box>span{font-size:22px;line-height:1}.search-box input{width:100%;min-width:0;border:0;outline:0;background:transparent;color:var(--ink);font-size:12px}.search-box:focus-within{border-color:#7fcdb8;box-shadow:0 0 0 3px rgba(85,216,182,.14)}.tool-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:17px}.tool-card{min-width:0;padding:24px;border:1px solid var(--line);border-radius:17px;background:var(--surface);box-shadow:0 8px 22px rgba(24,54,61,.035);transition:transform .2s,box-shadow .2s}.tool-card:hover{transform:translateY(-3px);box-shadow:var(--shadow)}.tool-card-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:17px}.tool-icon{width:42px;height:42px;border-radius:13px;display:grid;place-items:center;font-size:17px;font-weight:800}.icon-date{color:#5c6fce;background:#eef0ff}.icon-percent{color:#b87c2d;background:#fbf1e1}.icon-area{color:var(--teal);background:#e4f5ef}.tool-category{padding:5px 10px;border-radius:999px;background:#f4f7f7;color:#71858b;font-size:10px;font-weight:700}.tool-card h3{font-size:19px;letter-spacing:-.035em;margin:0 0 4px}.tool-intro{min-height:43px;color:var(--muted);font-size:12px;margin-bottom:20px}.calculator-form{display:grid;grid-template-columns:1fr 1fr;gap:12px 10px}.calculator-form label{display:flex;flex-direction:column;gap:6px;color:#526970;font-size:11px;font-weight:700}.calculator-form input{width:100%;min-width:0;height:42px;padding:0 11px;border:1px solid #dce5e5;border-radius:9px;background:#fbfdfd;color:var(--ink);font-size:13px;outline:0}.calculator-form input:focus{border-color:#55bda9;box-shadow:0 0 0 3px rgba(85,216,182,.13)}.button{min-height:43px;display:inline-flex;align-items:center;justify-content:center;gap:10px;border:1px solid transparent;border-radius:9px;padding:0 13px;font-size:12px;font-weight:700;cursor:pointer;transition:background .18s,border-color .18s,transform .18s}.button:active{transform:translateY(1px)}.calculator-form>.button{grid-column:1/-1;margin-top:2px}.button-dark{background:var(--teal);color:#fff}.button-dark:hover{background:#0c625b}.button-outline{background:#fff;border-color:var(--line);color:#526970}.button-outline:hover{border-color:#91bdb4;color:var(--teal)}.result{min-height:55px;margin-top:15px;padding:12px 13px;display:flex;align-items:center;border-radius:10px;background:#f0f7f5;color:#78908d;font-size:12px}.result.has-value{color:#145f59;font-size:15px;font-weight:800}.result small{display:block;color:#718985;font-size:10px;font-weight:500}.formula-note{min-height:33px;margin:10px 0 0;color:#839398;font-size:10px}.area-form .button{grid-column:1/-1}.area-form{gap:12px 10px}.empty-state{padding:25px;text-align:center;border:1px dashed #b9ceca;border-radius:13px;color:var(--muted);font-size:13px}.tool-card[hidden]{display:none}
.lotto-callout{margin:0 0 78px;padding:29px 34px;display:flex;align-items:center;gap:22px;border-radius:19px;background:#172b36;color:#fff;box-shadow:0 18px 40px rgba(23,43,54,.14)}.lotto-symbol{flex:none;width:60px;height:60px;display:grid;place-content:center;gap:1px;border-radius:17px;background:var(--mint);color:#123e3b;font-weight:800;text-align:center;line-height:1.2}.lotto-symbol span:first-child{font-size:16px}.lotto-symbol span:last-child{font-size:12px}.lotto-callout>div:nth-child(2){flex:1}.lotto-callout .eyebrow{color:#73e3c2;margin-bottom:4px}.lotto-callout h2{margin:0 0 4px;font-size:20px;letter-spacing:-.04em}.lotto-callout p:not(.eyebrow){margin:0;color:#bbcad0;font-size:12px}.button-light{background:#fff;color:#173b3b;white-space:nowrap}.button-light:hover{background:#e8fbf5}
.guide-heading{align-items:center}.guide-summary{max-width:440px}.guide-steps{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.guide-steps article{display:flex;gap:14px;align-items:flex-start;padding:19px;border-top:1px solid var(--line);background:linear-gradient(180deg,#fbfdfd,rgba(255,255,255,0));}.guide-steps article>span{color:#85b2a8;font-size:12px;font-weight:800;letter-spacing:.08em}.guide-steps h3{margin:0 0 3px;font-size:14px}.guide-steps p{margin:0;color:var(--muted);font-size:11px}.site-footer{max-width:1180px;margin:0 auto;padding:23px 24px 25px;border-top:1px solid var(--line);display:grid;grid-template-columns:auto 1fr;align-items:center;gap:9px 28px}.footer-brand .brand-mark{width:36px;height:36px;border-radius:11px;font-size:18px}.footer-brand strong{font-size:13px}.footer-brand small{font-size:9px}.site-footer>p{margin:0;color:#809096;font-size:11px}.footer-bottom{grid-column:1/-1;padding-top:13px;border-top:1px solid #e5ecec;display:flex;justify-content:space-between;color:#88969a;font-size:10px}.footer-bottom a{color:var(--teal);font-weight:700}
@media(max-width:900px){.hero{padding-left:42px;padding-right:42px}.hero-bottom{left:42px;right:42px}.tool-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.tool-card:last-child{grid-column:1/-1}.tool-card:last-child .calculator-form{grid-template-columns:1fr 1fr 120px}.area-form .button{grid-column:auto}.tool-card:last-child .tool-intro{min-height:0}.site-header{padding:0 24px}}
@media(max-width:620px){body{font-size:14px}.site-header{height:68px;padding:0 17px}.brand-mark{width:37px;height:37px;border-radius:11px}.main-nav{gap:11px;font-size:11px}.main-nav a{padding:7px 0}.main-nav a:nth-child(2){display:none}.main-nav a:last-child{padding:7px 10px}main{padding:0 15px}.hero{min-height:560px;margin:9px 0 57px;padding:36px 24px 54px;grid-template-columns:1fr;align-content:start;border-radius:20px}.hero-copy{padding-bottom:0}.hero h1{font-size:42px}.hero-description{font-size:13px}.hero-art{height:220px;margin-top:10px}.art-card{width:245px;padding:19px 22px}.art-card strong{font-size:32px;margin:8px 0}.orbit-one{width:290px;height:180px}.orbit-two{width:250px;height:220px}.chip-date{right:4px;top:15px}.chip-percent{left:6px;bottom:8px}.hero-bottom{left:24px;right:24px;height:45px;gap:8px;font-size:8px}.hero-bottom>span:nth-child(2){max-width:175px}.hero-bottom>span:last-child{font-size:8px}.hero-line{margin-left:2px}.section{margin-bottom:56px}.section-heading{align-items:flex-start;flex-direction:column;gap:15px;margin-bottom:18px}.section-heading h2{font-size:26px}.search-box{width:100%}.tool-grid{grid-template-columns:1fr;gap:12px}.tool-card,.tool-card:last-child{grid-column:auto;padding:20px}.tool-intro{min-height:0;margin-bottom:17px}.tool-card:last-child .calculator-form{grid-template-columns:1fr 1fr}.area-form .button{grid-column:1/-1}.formula-note{min-height:0}.lotto-callout{margin-bottom:56px;padding:22px;display:grid;grid-template-columns:48px 1fr;gap:13px;border-radius:16px}.lotto-symbol{width:48px;height:48px;border-radius:13px}.lotto-callout h2{font-size:17px}.lotto-callout p:not(.eyebrow){font-size:11px}.lotto-callout>.button{grid-column:1/-1;width:100%;min-height:42px}.guide-heading{gap:8px}.guide-steps{grid-template-columns:1fr;gap:0}.guide-steps article{padding:15px 5px}.site-footer{padding:20px 16px;grid-template-columns:1fr;gap:10px}.site-footer>p{padding-left:47px}.footer-bottom{margin-top:4px}.footer-bottom a{font-size:9px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{transition:none!important}}
.category-shortcuts{display:flex;flex-wrap:wrap;gap:8px;margin:-4px 0 27px}.category-shortcuts a{display:flex;align-items:center;gap:12px;padding:8px 13px;border:1px solid var(--line);border-radius:999px;background:#fff;color:#526970;font-size:11px;font-weight:700}.category-shortcuts a:hover{border-color:#8dcbb9;color:var(--teal)}.category-shortcuts b{color:var(--teal);font-size:10px}.directory-section{margin:0 0 35px}.directory-heading{display:flex;align-items:flex-start;gap:11px;margin:0 0 13px}.directory-heading>span{padding-top:2px;color:#78a79e;font-size:10px;font-weight:800;letter-spacing:.1em}.directory-heading h3{margin:0 0 1px;font-size:16px;letter-spacing:-.03em}.directory-heading p{margin:0;color:var(--muted);font-size:11px}.directory-section[hidden]{display:none}.result-stack{white-space:pre-line;display:block}.main-nav a:nth-child(3){white-space:nowrap}
@media(max-width:900px){.directory-section .directory-card:last-child{grid-column:auto}}
@media(max-width:620px){.category-shortcuts{flex-wrap:nowrap;overflow-x:auto;padding-bottom:5px;margin-right:-2px}.category-shortcuts a{flex:none}.directory-section{margin-bottom:26px}.directory-heading{margin-bottom:10px}.main-nav a:nth-child(3){display:none}}
.calculator-form select{width:100%;min-width:0;height:42px;padding:0 11px;border:1px solid #dce5e5;border-radius:9px;background:#fbfdfd;color:var(--ink);font-size:13px;outline:0}.calculator-form select:focus{border-color:#55bda9;box-shadow:0 0 0 3px rgba(85,216,182,.13)}.detail-panel .calculator-form select{height:46px}
.footer-links{grid-column:1/-1;display:flex;flex-wrap:wrap;gap:14px;margin-top:-4px;color:#738489;font-size:10px}.footer-links a:hover{color:var(--teal)}.policy-copy{max-width:850px;padding:28px;border:1px solid var(--line);border-radius:16px;background:#fff}.policy-copy h2{margin:27px 0 7px;font-size:17px}.policy-copy h2:first-child{margin-top:0}.policy-copy p,.policy-copy li{color:#566d74;font-size:13px}.policy-copy ul{padding-left:20px}.policy-copy .updated{color:#829196;font-size:11px}
.directory-card{display:block;min-height:228px}.directory-card .tool-intro{min-height:44px;margin-bottom:18px}.directory-link{display:inline-flex;align-items:center;gap:8px;color:var(--teal);font-size:12px;font-weight:800}.directory-link b{font-size:15px;transition:transform .18s}.directory-card:hover .directory-link b{transform:translate(2px,-2px)}
.breadcrumbs{display:flex;gap:9px;align-items:center;margin:22px 0 18px;color:#86969a;font-size:11px}.breadcrumbs a:hover{color:var(--teal)}.detail-hero{padding:35px 42px;border:1px solid #e1eaea;border-radius:20px;background:linear-gradient(112deg,#fff,#eff8f5);box-shadow:var(--shadow)}.detail-hero .eyebrow{margin-bottom:6px}.detail-hero h1{margin:0 0 8px;font-size:clamp(30px,4vw,42px);line-height:1.2;letter-spacing:-.05em}.detail-hero p:last-child{margin:0;color:var(--muted);font-size:13px}.detail-grid{display:grid;grid-template-columns:minmax(0,1.35fr) minmax(240px,.65fr);gap:17px;margin:21px 0 42px}.detail-panel,.detail-aside{padding:26px;border:1px solid var(--line);border-radius:16px;background:#fff}.detail-panel h2,.detail-aside h2{font-size:18px;letter-spacing:-.035em;margin:0 0 6px}.detail-panel>p,.detail-aside>p{color:var(--muted);font-size:12px}.detail-panel .calculator-form{margin-top:22px}.detail-panel .calculator-form label{font-size:12px}.detail-panel .calculator-form input{height:46px}.detail-panel .button{min-height:47px}.detail-panel .result{min-height:64px;margin-top:17px;font-size:13px}.detail-panel .result.has-value{font-size:19px}.detail-aside{background:#f8fbfa}.detail-aside h2{font-size:15px}.detail-aside p{margin-bottom:16px}.rule-box{padding:14px;border:1px solid #e1ebea;border-radius:11px;background:#fff;color:#536f6d;font-size:12px}.rule-box strong{display:block;margin-bottom:4px;color:var(--teal)}.preset-row{display:flex;flex-wrap:wrap;gap:7px;margin-top:15px}.preset-row button{padding:7px 10px;border:1px solid var(--line);border-radius:999px;background:#fff;color:#47635f;font-size:10px;font-weight:700;cursor:pointer}.preset-row button:hover{border-color:#83c8b5;color:var(--teal)}.content-section{margin:0 0 48px}.content-section h2{margin:0 0 15px;font-size:23px;letter-spacing:-.04em}.content-section>p{max-width:820px;color:#566d74;font-size:13px}.info-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}.info-card{padding:19px;border:1px solid var(--line);border-radius:13px;background:#fff}.info-card h3{margin:0 0 7px;font-size:14px}.info-card p{margin:0;color:var(--muted);font-size:12px}.formula-line{display:block;margin-top:10px;padding:10px 12px;border-radius:8px;background:#f0f7f5;color:var(--teal);font-size:12px;font-weight:700}.faq-list{display:grid;gap:9px}.faq-list details{padding:15px 17px;border:1px solid var(--line);border-radius:11px;background:#fff}.faq-list summary{cursor:pointer;font-size:13px;font-weight:700}.faq-list details p{margin:10px 0 0;color:var(--muted);font-size:12px}.related-links{display:flex;flex-wrap:wrap;gap:9px}.related-links a{padding:9px 13px;border:1px solid var(--line);border-radius:999px;background:#fff;color:#49666b;font-size:11px;font-weight:700}.related-links a:hover{border-color:#81c6b4;color:var(--teal)}.detail-disclaimer{margin-top:21px;padding:13px 15px;border-radius:10px;background:#f7f8f6;color:#77868a;font-size:10px}
@media(max-width:900px){.directory-card:last-child{grid-column:1/-1}.detail-grid{grid-template-columns:1fr}.detail-aside{display:grid;grid-template-columns:1fr 1fr;gap:8px 20px}.detail-aside h2,.detail-aside>p{grid-column:1/-1}.detail-aside .rule-box{align-self:start}}
@media(max-width:620px){.breadcrumbs{margin:16px 0 12px}.detail-hero{padding:27px 22px;border-radius:16px}.detail-hero h1{font-size:31px}.detail-hero p:last-child{font-size:12px}.detail-grid{margin:14px 0 34px;gap:10px}.detail-panel,.detail-aside{padding:19px}.detail-panel h2{font-size:17px}.detail-panel .calculator-form{margin-top:17px}.detail-aside{display:block}.detail-aside h2{margin-bottom:6px}.detail-aside>p{margin-bottom:14px}.content-section{margin-bottom:37px}.content-section h2{font-size:21px}.info-grid{grid-template-columns:1fr}.info-card{padding:16px}.faq-list details{padding:13px 14px}.related-links a{font-size:10px}}
.calculator-form .full-field{grid-column:1/-1}.calculator-form textarea,.text-tool-label textarea{width:100%;min-width:0;padding:11px;border:1px solid #dce5e5;border-radius:9px;background:#fbfdfd;color:var(--ink);font:inherit;font-size:13px;resize:vertical;outline:0}.calculator-form textarea:focus,.text-tool-label textarea:focus{border-color:#55bda9;box-shadow:0 0 0 3px rgba(85,216,182,.13)}.full-field small{color:#829196;font-size:10px;font-weight:500}.world-clock-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:11px}.world-clock-grid .info-card time{display:block;color:var(--teal);font-size:15px;font-variant-numeric:tabular-nums;font-weight:800}.text-tool-label{display:grid;gap:7px;color:#526970;font-size:12px;font-weight:700}.text-count-summary{padding:10px 13px;border-radius:9px;background:#f0f7f5;color:var(--teal);font-size:12px;font-weight:700}.symbol-grid{display:grid;grid-template-columns:repeat(6,minmax(0,1fr));gap:8px}.symbol-grid button{min-height:46px;border:1px solid var(--line);border-radius:10px;background:#fff;color:var(--teal);font-size:20px;font-weight:700;cursor:pointer}.symbol-grid button:hover{border-color:#83c8b5;background:#f0f7f5}@media(max-width:620px){.world-clock-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.symbol-grid{grid-template-columns:repeat(4,minmax(0,1fr))}}