*{box-sizing:border-box}html{scroll-behavior:smooth}:root{--bg:#f6f7fb;--surface:#fff;--ink:#172033;--muted:#667085;--line:#e4e7ec;--blue:#2357d9;--blue2:#183da0;--mint:#e8faf3;--green:#087a55;--shadow:0 10px 35px rgba(27,39,65,.08);--radius:18px}body{margin:0;background:var(--bg);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Noto Sans KR",sans-serif;line-height:1.6}a{color:var(--blue);text-decoration:none}button,input,textarea{font:inherit}nav{position:sticky;top:0;z-index:20;background:rgba(246,247,251,.9);border-bottom:1px solid rgba(228,231,236,.8);backdrop-filter:blur(14px)}.nav-inner{max-width:1240px;margin:auto;padding:14px 24px;display:flex;align-items:center;justify-content:space-between}.logo{font-weight:800;color:var(--ink);font-size:18px}.nav-links{display:flex;gap:24px}.nav-links a{color:var(--muted);font-size:14px;font-weight:650}.hero{max-width:1240px;margin:auto;padding:78px 24px 64px;display:grid;grid-template-columns:190px 1fr;gap:54px;align-items:center}.hero-photo{width:190px;height:190px;padding:0;border:5px solid #fff;border-radius:42px;overflow:hidden;box-shadow:var(--shadow);cursor:pointer;background:#dbe4ff}.hero-photo img{width:100%;height:100%;object-fit:cover}.eyebrow{margin:0 0 9px;color:var(--blue);font-size:12px;font-weight:850;letter-spacing:.14em}.hero h1{font-size:clamp(38px,5vw,64px);line-height:1.08;letter-spacing:-.045em;margin:0 0 18px}.subtitle{font-weight:700;font-size:18px;margin:0 0 10px}.bio{max-width:720px;color:var(--muted);margin:0 0 22px}.tags,.card-tags,.stack-list{display:flex;flex-wrap:wrap;gap:8px}.tags span,.card-tags span{font-size:12px;border-radius:999px;padding:5px 10px;background:#e9efff;color:#284b9e;font-weight:650}main{max-width:1240px;margin:auto;padding:0 24px}.section{padding:62px 0}.section-heading{display:flex;justify-content:space-between;align-items:end;gap:30px;margin-bottom:26px;border-bottom:1px solid var(--line);padding-bottom:18px}.section-heading h2{font-size:30px;letter-spacing:-.025em;margin:0}.section-heading>p{color:var(--muted);font-size:14px;margin:0;max-width:480px}.app-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}.app-card{display:grid;grid-template-columns:150px 1fr;gap:22px;background:linear-gradient(145deg,#fff,#f5f8ff);border:1px solid #dce5ff;border-radius:24px;padding:24px;box-shadow:var(--shadow)}.app-card>img{width:150px;height:150px;object-fit:cover;border-radius:31px;box-shadow:0 8px 24px rgba(30,56,112,.18)}.app-body{display:flex;flex-direction:column;align-items:flex-start}.release-badge{font-size:11px;font-weight:800;padding:4px 9px;border-radius:99px;background:var(--mint);color:var(--green)}.app-card h3{font-size:22px;margin:10px 0 4px}.app-card p{font-size:13px;color:var(--muted);margin:0 0 10px}.play-link{margin-top:auto;padding-top:12px;font-size:13px;font-weight:750}.compact-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-bottom:50px}.compact-card{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:16px}.compact-card strong,.compact-card span{display:block}.compact-card span{color:var(--muted);font-size:12px;margin-top:3px}.project-group{margin-top:38px}.project-group>h3{font-size:19px;margin:0 0 15px}.project-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.project-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:22px;box-shadow:0 5px 20px rgba(27,39,65,.045)}.project-card h4{font-size:17px;margin:0 0 7px}.project-card p{font-size:13px;color:var(--muted);margin:0 0 14px}.project-card>a{display:inline-block;margin-top:14px;font-size:13px;font-weight:750}.tools-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}.tool-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:20px;box-shadow:0 5px 20px rgba(27,39,65,.04)}.tool-card h3{font-size:15px;margin:0 0 10px}.tool-card textarea,.tool-card input{width:100%;border:1px solid #d0d5dd;border-radius:10px;background:#fbfcfe;padding:10px 12px;font-family:"SFMono-Regular",Consolas,monospace;font-size:13px;color:var(--ink)}.tool-card textarea{min-height:88px;resize:vertical}.tool-card input{margin-bottom:8px}.tool-card textarea:focus,.tool-card input:focus{outline:3px solid #dbe6ff;border-color:var(--blue)}.buttons{display:flex;gap:8px;flex-wrap:wrap;margin-top:10px}.buttons.no-top{margin-top:0}.buttons button{border:0;border-radius:9px;background:var(--blue);color:#fff;font-weight:700;font-size:12px;padding:8px 13px;cursor:pointer}.buttons button:hover{background:var(--blue2)}.buttons .secondary{background:#eef1f6;color:#344054}.buttons .secondary:hover{background:#e2e7ef}.hint{font-size:11px;color:var(--muted);margin:5px 0}.result{display:none;margin:12px 0 0;padding:12px;border:1px solid var(--line);border-radius:10px;background:#f8fafc;white-space:pre-wrap;word-break:break-word;max-height:260px;overflow:auto;font-family:"SFMono-Regular",Consolas,monospace;font-size:12px}.result.visible{display:block}.result.error{color:#b42318;background:#fff4f2;border-color:#fecdca}.diff-card{grid-column:1/-1}.diff-inputs{display:grid;grid-template-columns:1fr 1fr;gap:12px}.diff-inputs textarea{min-height:150px}.diff-line{display:grid;grid-template-columns:28px 1fr;min-height:22px}.diff-line code{white-space:pre-wrap}.diff-line.add{background:#eafaf0;color:#067647}.diff-line.remove{background:#fff0ee;color:#b42318}.diff-line.same{color:#667085}.stack-list span{background:var(--surface);border:1px solid var(--line);border-radius:10px;padding:8px 13px;font-size:13px;font-weight:650}.modal{display:none;position:fixed;inset:0;z-index:50;background:rgba(10,16,28,.82);align-items:center;justify-content:center}.modal.open{display:flex}.modal img{max-width:min(88vw,520px);max-height:85vh;border-radius:24px}.modal button{position:absolute;right:28px;top:20px;border:0;background:transparent;color:#fff;font-size:38px;cursor:pointer}.toast{position:fixed;left:50%;bottom:24px;transform:translate(-50%,20px);background:#172033;color:#fff;border-radius:99px;padding:9px 16px;font-size:12px;opacity:0;pointer-events:none;transition:.2s}.toast.visible{opacity:1;transform:translate(-50%,0)}footer{text-align:center;color:var(--muted);font-size:13px;padding:40px 20px;border-top:1px solid var(--line)}
.sprite-tool{grid-column:1/-1}.sprite-source,.sprite-controls{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.sprite-source label,.sprite-controls label{display:block;color:var(--muted);font-size:12px;font-weight:700}.sprite-inline,.sprite-fields{display:flex;gap:8px;align-items:end}.sprite-inline input{margin:0}.sprite-inline button{white-space:nowrap;border:0;border-radius:9px;background:var(--blue);color:#fff;padding:10px 13px;font-weight:700}.sprite-controls{grid-template-columns:repeat(4,minmax(0,1fr));margin-top:14px}.sprite-controls fieldset{min-width:0;border:1px solid var(--line);border-radius:12px;padding:10px}.sprite-controls legend{font-size:12px;font-weight:800}.sprite-controls select{width:100%;margin-bottom:8px}.sprite-controls input[type=checkbox],.sprite-controls input[type=radio]{width:auto;margin:0 5px 0 0}.sprite-meta,.sprite-status,.sprite-error{font-size:12px;margin:8px 0}.sprite-status{color:var(--green)}.sprite-error{color:#b42318;background:#fff4f2;border:1px solid #fecdca;border-radius:8px;padding:8px}.sprite-stage{height:360px;max-width:100%;overflow:hidden;border:1px solid var(--line);border-radius:12px;background:#fff}.sprite-stage.checker{background-color:#fff;background-image:linear-gradient(45deg,#dfe3e8 25%,transparent 25%),linear-gradient(-45deg,#dfe3e8 25%,transparent 25%),linear-gradient(45deg,transparent 75%,#dfe3e8 75%),linear-gradient(-45deg,transparent 75%,#dfe3e8 75%);background-size:24px 24px;background-position:0 0,0 12px,12px -12px,-12px 0}.sprite-stage canvas{display:block;width:100%;height:100%}
.sprite-controls-main{grid-template-columns:minmax(260px,420px)}.sprite-detection{display:flex;align-items:center;justify-content:space-between;gap:8px;margin-bottom:8px;padding:8px 10px;border-radius:9px;background:var(--mint);color:var(--green);font-size:12px;font-weight:800}.sprite-detection button{border:0;border-radius:8px;background:#fff;color:var(--green);padding:6px 9px;font-size:11px;font-weight:800;cursor:pointer}.sprite-advanced{margin:12px 0}.sprite-advanced>summary{cursor:pointer;color:var(--blue);font-size:13px;font-weight:800}.sprite-playback button:first-child{min-width:100px;font-size:14px;padding:10px 22px}
@media(max-width:900px){.app-grid,.project-grid{grid-template-columns:1fr}.compact-grid{grid-template-columns:repeat(2,1fr)}.app-card{grid-template-columns:120px 1fr}.app-card>img{width:120px;height:120px}.tools-grid{grid-template-columns:1fr}.diff-card{grid-column:auto}.sprite-controls{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:700px){.sprite-source,.sprite-controls{grid-template-columns:1fr}.sprite-inline{align-items:stretch;flex-direction:column}.sprite-stage{height:300px}}
@media(max-width:640px){.nav-links{gap:13px}.nav-links a:nth-child(2){display:none}.hero{grid-template-columns:1fr;text-align:center;padding-top:45px;gap:28px}.hero-photo{margin:auto;width:150px;height:150px}.tags{justify-content:center}.section{padding:44px 0}.section-heading{display:block}.section-heading>p{margin-top:8px}.app-card{grid-template-columns:76px 1fr;padding:17px;gap:15px}.app-card>img{width:76px;height:76px;border-radius:18px}.app-card h3{font-size:18px}.compact-grid{grid-template-columns:1fr 1fr}.diff-inputs{grid-template-columns:1fr}main{padding:0 16px}.hero{padding-left:16px;padding-right:16px}}