*{box-sizing:border-box}
:root{--paper:#f7f5f0;--ink:#1d2a27;--muted:#71807b;--line:#dfe3dd;--mint:#cce8d9;--coral:#f17b61}
html{scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--ink);font-family:"Noto Sans KR",system-ui,sans-serif}
a{color:inherit}
.shell{width:min(1120px,calc(100% - 40px));margin:auto}
header{border-bottom:1px solid var(--line);position:sticky;top:0;background:#f7f5f0e8;backdrop-filter:blur(14px);z-index:2}
.nav{height:76px;display:flex;align-items:center;gap:26px}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--ink);font-size:19px;font-weight:800;letter-spacing:-.05em;text-decoration:none}
.brand b{background:var(--ink);color:var(--paper);border-radius:9px;font:500 13px "DM Mono",monospace;padding:8px 6px}
.nav nav{display:flex;gap:30px;margin-left:auto}
.nav nav a,.pill{color:var(--muted);font-size:13px;text-decoration:none}
.pill{border:1px solid var(--line);border-radius:999px;padding:10px 15px}
.hero{padding:100px 0 85px}
.hero small,.heading small,.about small,.eyebrow{color:#87948e;font:500 11px "DM Mono",monospace;letter-spacing:.16em}
.hero h1{font-size:clamp(42px,7vw,79px);font-weight:700;letter-spacing:-.08em;line-height:1.14;margin:20px 0 28px}
.hero h1 em{color:var(--coral);font-style:normal}
.hero p{color:var(--muted);font-size:16px;line-height:1.9;margin-bottom:34px}
.button{background:var(--ink);border-radius:999px;color:#fff;display:inline-block;padding:15px 21px;text-decoration:none;font-size:13px}
.section{padding:110px 0 30px}
.hero + .section{padding-top:45px}
.heading{align-items:end;display:flex;justify-content:space-between;margin-bottom:32px}
.heading h2{font-size:clamp(28px,4vw,40px);letter-spacing:-.07em;margin:20px 0 0}
.heading>p{color:var(--muted);font-size:13px;line-height:1.8;text-align:right}
.toolbar{align-items:center;border-bottom:1px solid var(--line);display:flex;gap:18px;justify-content:space-between;margin-bottom:28px;padding-bottom:20px}
.search{align-items:center;background:#fff;border:1px solid var(--line);border-radius:8px;color:#87948e;display:flex;font-size:22px;gap:10px;padding:8px 14px;width:270px}
.search input{background:none;border:0;outline:0;width:100%;font:13px inherit}
.filters{display:flex;flex-wrap:wrap;gap:6px}
.filters button{background:none;border:0;border-radius:999px;color:var(--muted);cursor:pointer;font:13px inherit;padding:9px 13px}
.filters button.active,.filters button:hover{background:var(--mint);color:var(--ink)}
.grid{display:grid;gap:14px;grid-template-columns:repeat(3,1fr)}
.card{background:#fff;border:1px solid var(--line);border-radius:12px;color:var(--ink);display:flex;flex-direction:column;min-height:235px;padding:24px;text-decoration:none;transition:.2s}.card[hidden]{display:none}
.card:hover,.card:focus-visible{border-color:#b8cbc0;box-shadow:0 12px 30px #1d2a2712;transform:translateY(-3px);outline:none}
.top,.card footer{align-items:center;display:flex;justify-content:space-between}
.icon{align-items:center;background:var(--mint);border-radius:10px;display:flex;font:600 17px "DM Mono",monospace;height:40px;justify-content:center;width:40px}
.status{color:#a1aaa5;font:10px "DM Mono",monospace}
.cat{color:var(--coral);font:10px "DM Mono",monospace;letter-spacing:.08em;margin:30px 0 8px}
.card h3{font-size:19px;letter-spacing:-.06em;margin:0 0 8px}
.card>p{color:var(--muted);font-size:12px;line-height:1.7;margin:0 auto 18px 0}
.card footer{border-top:1px solid #eef0ec;color:#a1aaa5;font:10px "DM Mono",monospace;padding-top:14px;width:100%}
.card footer b{color:var(--coral);font-size:20px}
.empty{color:var(--muted);grid-column:1/-1;padding:50px;text-align:center}
.guide{border-top:1px solid var(--line);margin-top:100px}
.guide-grid{display:grid;gap:16px;grid-template-columns:repeat(3,1fr)}
.guide-grid article{border-top:2px solid var(--ink);padding-top:17px}
.guide-grid b{color:var(--coral);font:12px "DM Mono",monospace}
.guide-grid h3{font-size:16px;letter-spacing:-.04em;margin:33px 0 11px}
.guide-grid p{color:var(--muted);font-size:13px;line-height:1.8}
.about{background:var(--mint);border-radius:16px;display:grid;gap:60px;grid-template-columns:1fr 1fr;margin:110px 0 30px;padding:48px}
.about h2{font-size:31px;letter-spacing:-.07em;line-height:1.35;margin:20px 0 0}
.about p{color:#536861;font-size:14px;line-height:1.9;margin:30px 0 22px}
.about a{color:var(--ink);font-size:13px;font-weight:600;text-decoration:none}
.site-footer{background:var(--ink);color:#dce7e1;margin-top:90px}
.foot{display:flex;justify-content:space-between;padding:58px 0 52px}
.white{color:#fff}.white b{background:var(--mint);color:var(--ink)}
.foot p{color:#8faaa0;font-size:12px;line-height:1.8}
.foot-links{display:flex;gap:85px}
.foot-links div{display:flex;flex-direction:column;gap:12px}
.foot-links strong{color:#fff;font-size:12px}
.foot-links a{color:#8faaa0;font-size:12px;text-decoration:none}
.copyright{border-top:1px solid #334943;color:#718b82;display:flex;justify-content:space-between;padding:18px 0;font:10px "DM Mono",monospace}
.policy{max-width:820px;padding:90px 0 120px}
.policy h1{font-size:clamp(36px,6vw,64px);letter-spacing:-.08em;margin:20px 0}
.policy .lead{color:var(--muted);font-size:16px;margin-bottom:70px}
.policy h2{border-top:1px solid var(--line);font-size:22px;letter-spacing:-.05em;margin:42px 0 14px;padding-top:22px}
.policy p{color:#53625d;font-size:14px;line-height:2}
.policy a{color:#df694e}
.tool-detail{padding:72px 0 120px}
.back-link{color:var(--muted);font-size:13px;text-decoration:none}
.back-link:hover{color:var(--ink)}
.tool-detail-intro{align-items:start;display:grid;gap:70px;grid-template-columns:minmax(0,1.15fr) minmax(280px,.85fr);padding:42px 0 54px}
.tool-detail-intro h1{font-size:clamp(38px,6vw,68px);letter-spacing:-.08em;line-height:1.1;margin:20px 0}
.tool-detail-intro .lead{color:var(--muted);font-size:16px;line-height:1.8;margin:0}
.detail-copy{border-left:1px solid var(--line);padding:14px 0 14px 30px}
.detail-copy h2{font-size:18px;letter-spacing:-.05em;margin:0 0 10px}
.detail-copy h2:nth-of-type(n+2){margin-top:30px}
.detail-copy p{color:#53625d;font-size:14px;line-height:1.9;margin:0}
.tool-workspace{background:#fff;border:1px solid var(--line);border-radius:16px;margin:28px 0 0;padding:30px;box-shadow:0 18px 50px #1d2a2710}
.tool-workspace + .tool-detail-intro{padding-top:64px}
.workspace-head{align-items:flex-start;display:flex;justify-content:space-between;margin-bottom:24px}
.workspace-head h2{font-size:28px;letter-spacing:-.07em;margin:16px 0 0}
.workspace-head small{color:#87948e;font:500 11px "DM Mono",monospace;letter-spacing:.16em}
.tool-form{align-items:center;display:flex;flex-wrap:wrap;gap:14px}
.tool-form.wide{align-items:flex-start;display:flex;flex-direction:column}
.tool-form label{color:var(--muted);display:flex;flex-direction:column;font-size:12px;gap:8px}
.tool-form input,.tool-form textarea{background:#fafbf9;border:1px solid var(--line);border-radius:7px;color:var(--ink);font:14px "DM Mono",monospace;outline:none;padding:11px}
.tool-form input:focus,.tool-form textarea:focus{border-color:#91b7a2}
.tool-form textarea{font:13px/1.7 "DM Mono",monospace;min-height:150px;resize:vertical;width:100%}
.tool-form output{background:var(--mint);border-radius:9px;color:var(--ink);font:600 22px "DM Mono",monospace;margin-left:auto;padding:16px 20px}
.tool-form output small{font:12px "Noto Sans KR",sans-serif;font-weight:400}
.button.small{border:0;cursor:pointer;font-size:12px;padding:11px 16px}
.result{background:#f4f6f2;border-radius:8px;color:#536861;font:12px/1.7 "DM Mono",monospace;margin:0;max-height:270px;overflow:auto;padding:16px;white-space:pre-wrap;width:100%}
.text-button,.close{background:none;border:0;color:var(--muted);cursor:pointer;font:13px inherit}
.text-button{color:var(--coral);font-size:12px}
.mode-buttons{display:flex;gap:8px}
.mode-buttons button{background:none;border:1px solid var(--line);border-radius:999px;color:var(--muted);cursor:pointer;font:13px inherit;padding:8px 14px}
.mode-buttons button.active{background:var(--mint);color:var(--ink)}
.color-preview{border:1px solid var(--line);border-radius:8px;height:42px;width:42px}
.checks{display:flex;gap:14px}.checks label{align-items:center;display:flex;flex-direction:row;gap:5px}
.mono-output{background:#f4f6f2;border-radius:8px;color:var(--ink);font:600 18px "DM Mono",monospace;letter-spacing:.04em;padding:16px;word-break:break-all;width:100%}
.prose{font-family:"Noto Sans KR",sans-serif}
.workspace-note{color:var(--muted);font-size:13px;margin:-8px 0 26px}.tool-detail-body .tool-detail{padding-top:56px}
.tool-detail-body .tool-workspace{margin-top:22px;padding:28px 30px 30px}
.tool-detail-body .tool-workspace + .tool-detail-intro{gap:56px;padding-top:48px}
.tool-detail-body .workspace-head{margin-bottom:20px}
.tool-detail-body .workspace-head h2{font-size:26px}
.tool-detail-body .tool-form:not(.wide){display:grid;grid-template-columns:minmax(150px,190px) minmax(150px,190px) minmax(240px,1fr);gap:14px;align-items:end}
.tool-detail-body .tool-form label{min-width:0}
.tool-detail-body .tool-form:not(.wide) output{align-self:end;justify-self:end;margin-left:0;max-width:100%;white-space:nowrap}
.tool-detail-body .tool-detail-intro h1{font-size:clamp(38px,5.2vw,58px);margin:14px 0 18px}
.tool-detail-body .tool-detail-intro .lead{font-size:15px;line-height:1.9;max-width:620px}
.tool-detail-body .detail-copy{padding-left:26px}
.tool-detail-body .detail-copy p{color:#4c5e57;font-size:13px;line-height:2}
@media(max-width:700px){
.shell{width:calc(100% - 28px)}.nav{height:65px}.nav nav{display:none}.pill{font-size:11px;padding:8px 11px}
.hero{padding:67px 0 60px}.hero + .section{padding-top:25px}.hero p{font-size:14px}.toolbar,.heading{align-items:stretch;flex-direction:column}.heading>p{text-align:left}.search{width:100%}.filters{overflow:auto;flex-wrap:nowrap}.filters button{white-space:nowrap}
.grid,.guide-grid,.about{grid-template-columns:1fr}.about{gap:5px;margin-top:75px;padding:28px}.foot{flex-direction:column;gap:40px}.foot-links{gap:45px}.copyright{flex-direction:column;gap:8px}
.tool-detail{padding-top:44px}.tool-detail-intro{gap:30px;grid-template-columns:1fr;padding:30px 0 35px}.tool-workspace + .tool-detail-intro{padding-top:48px}.detail-copy{border-left:0;border-top:1px solid var(--line);padding:25px 0 0}.tool-workspace{padding:22px 18px}.tool-form output{margin-left:0;width:100%}.checks{flex-wrap:wrap}.tool-detail-body .tool-detail{padding-top:40px}.tool-detail-body .tool-workspace{margin-top:18px;padding:22px 18px 24px}.tool-detail-body .tool-workspace + .tool-detail-intro{gap:28px;padding-top:38px}.tool-detail-body .tool-form:not(.wide){grid-template-columns:1fr 1fr;gap:12px}.tool-detail-body .tool-form:not(.wide) output{grid-column:1/-1;justify-self:stretch;white-space:normal}.tool-detail-body .tool-detail-intro h1{font-size:clamp(38px,12vw,52px)}.tool-detail-body .detail-copy{padding-left:0}
}
.tool-guide-extras{border-top:1px solid var(--line);margin-top:44px;padding-top:28px}.tool-guide-extras h2{font-size:25px;letter-spacing:-.05em;margin:0 0 14px}.tool-guide-extras details{background:#fff;border:1px solid var(--line);border-radius:9px;margin:10px 0;padding:15px 18px}.tool-guide-extras summary{cursor:pointer;font-size:14px;font-weight:700}.tool-guide-extras details p{color:#53625d;font-size:13px;line-height:1.8;margin:13px 0 0}.related-tools{color:var(--muted);font-size:13px;margin:22px 0}.related-tools a{color:#df694e}
.tool-form select{background:#fafbf9;border:1px solid var(--line);border-radius:7px;color:var(--ink);font:14px "Noto Sans KR",sans-serif;outline:none;padding:11px}.form-row{display:flex;flex-wrap:wrap;gap:14px;width:100%}.form-row label{flex:1;min-width:150px}