:root{color:var(--text);background:var(--page-bg);color-scheme:light;font-synthesis:none;--ink:#242621;--paper:#f7f4eb;--muted:#50544b;--yellow:#f9d94f;--text:#242621;--page-bg:#f7f4eb;--surface:#fffdf7;--border:#242621;--shadow:#242621;--card-divider:#24262160;--focus:#1553b7;--theme-control-bg:var(--yellow);--theme-control-text:var(--ink);--badge-bg:var(--ink);--badge-text:#fffdf7;font-family:Pretendard,Apple SD Gothic Neo,Noto Sans KR,system-ui,sans-serif}:root[data-theme=dark]{color-scheme:dark;--text:#ecece6;--page-bg:#1b1e24;--surface:#242830;--muted:#bfc5cf;--border:#bfc6d4;--shadow:#0d1016;--card-divider:#bfc6d460;--focus:#9fbaff;--theme-control-bg:#28354f;--theme-control-text:#ecece6;--badge-bg:var(--yellow);--badge-text:var(--ink)}*{box-sizing:border-box}html{min-width:320px}body{-webkit-font-smoothing:antialiased;margin:0}a{color:inherit;-webkit-tap-highlight-color:transparent;text-decoration:none}a:focus-visible,button:focus-visible,#programs:focus-visible{outline:3px solid var(--focus);outline-offset:5px}svg{flex-shrink:0}.skip-link{z-index:10;border:2px solid var(--border);background:var(--surface);padding:12px;position:absolute;top:8px;left:12px;transform:translateY(-160%)}.skip-link:focus{transform:none}.site-header{border-bottom:2px solid var(--border)}.site-nav{align-items:center;gap:28px;max-width:1280px;min-height:92px;margin:auto;padding:18px 32px;display:flex}.brand{flex-shrink:0;align-items:center;min-height:44px;margin-right:auto;padding-bottom:4px;display:inline-flex}.opensale-logo{border:2px solid var(--ink);background:var(--ink);box-shadow:4px 4px 0 var(--ink);letter-spacing:-.045em;border-radius:2px;align-items:stretch;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;font-size:25px;font-weight:900;line-height:1;transition:transform .12s,box-shadow .12s;display:inline-flex}.opensale-logo-primary,.opensale-logo-secondary{align-items:center;padding:.3em .32em;display:flex}.opensale-logo-primary{color:var(--paper);background:var(--ink)}.opensale-logo-secondary{border-left:2px solid var(--ink);color:var(--ink);background:var(--yellow)}.header-actions{align-items:center;gap:14px;display:flex}.utility-button{width:40px;height:40px;color:var(--text);border:2px solid var(--border);background:var(--surface);box-shadow:3px 3px 0 var(--shadow);cursor:pointer;border-radius:4px;flex-shrink:0;justify-content:center;align-items:center;padding:0;display:inline-flex}.utility-button[hidden]{display:none}.utility-button:hover{box-shadow:4px 4px 0 var(--shadow)}.utility-button:active{box-shadow:1px 1px 0 var(--shadow)}.theme-toggle{background:var(--theme-control-bg);color:var(--theme-control-text)}.theme-icon--moon,:root[data-theme=dark] .theme-icon--sun{display:none}:root[data-theme=dark] .theme-icon--moon{display:block}.workspace{max-width:1280px;margin:auto;padding:0 32px}.intro{grid-template-columns:1.3fr 1fr;align-items:end;gap:32px;padding:36px 0 32px;display:grid}.eyebrow{letter-spacing:.08em;align-items:center;gap:8px;margin:0 0 20px;font:700 11px/1.4 ui-monospace,SFMono-Regular,Menlo,monospace;display:flex}.eyebrow>span{background:var(--text);width:9px;height:9px}h1{letter-spacing:-.045em;word-break:keep-all;margin:0;font-size:clamp(26px,2.7vw,36px);font-weight:800;line-height:1.35}.intro-aside{padding-bottom:8px}.intro-copy{color:var(--muted);word-break:keep-all;margin:0;font-size:15px;line-height:1.75}.intro-note{color:var(--muted);align-items:center;gap:6px;margin-top:18px;font-size:12px;display:flex}.programs{grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;scroll-margin-top:20px;display:grid}.program-card{--card-color:var(--surface);border:2px solid var(--border);background:var(--card-color);min-width:0;min-height:276px;box-shadow:5px 5px 0 var(--shadow);border-radius:4px;flex-direction:column;padding:20px;transition:transform .12s,box-shadow .12s;display:flex}.program-card--windows{--card-color:var(--yellow)}.program-card--web{--card-color:#cbe5fa}.program-card--dashboard{--card-color:#e0d9f6}.program-card--ios{--card-color:var(--surface)}.program-card--android{--card-color:#d9ebce}.program-card--order{--card-color:#f6d5c2}.program-card--bid{--card-color:#cee7de}.program-card--softopen{--card-color:var(--surface)}:root[data-theme=dark] .program-card--windows{--card-color:#433e2c}:root[data-theme=dark] .program-card--web{--card-color:#253a4c}:root[data-theme=dark] .program-card--dashboard{--card-color:#37334b}:root[data-theme=dark] .program-card--android{--card-color:#304132}:root[data-theme=dark] .program-card--order{--card-color:#46382f}:root[data-theme=dark] .program-card--bid{--card-color:#2a423b}.card-top{justify-content:space-between;align-items:flex-start;gap:8px;display:flex}.card-icon{border:1.5px solid var(--border);background:var(--surface);border-radius:3px;place-items:center;width:46px;height:46px;display:grid}.primary-badge{color:var(--badge-text);background:var(--badge-bg);padding:6px 8px;font-size:11px;font-weight:650}.card-number{color:var(--muted);font:500 12px/1.5 ui-monospace,SFMono-Regular,Menlo,monospace}.card-content{flex-direction:column;margin:18px 0 20px;display:flex}.card-title{letter-spacing:-.045em;font-size:23px;font-weight:800;line-height:1.3}.card-purpose{word-break:keep-all;margin-top:5px;font-size:12px;font-weight:650;line-height:1.5}.card-description{color:var(--muted);word-break:keep-all;margin-top:10px;font-size:13px;font-weight:400;line-height:1.65}.card-action{border-top:1px solid var(--card-divider);justify-content:space-between;align-items:center;gap:8px;margin-top:auto;padding-top:13px;font-size:12px;font-weight:650;line-height:1.5;display:flex}.card-arrow{border:1.5px solid var(--border);background:var(--surface);border-radius:2px;flex-shrink:0;place-items:center;width:28px;height:28px;display:grid}.program-card--windows .card-arrow{color:#fffdf7;background:var(--ink)}.site-footer{border-top:2px solid var(--border);flex-wrap:wrap;justify-content:space-between;align-items:center;gap:16px;margin-top:32px;padding:22px 0 28px;font-size:12px;display:flex}.footer-brand{letter-spacing:.02em;font-weight:800}.footer-brand span{color:var(--muted);letter-spacing:0;margin-left:8px;font-weight:400}.contact-link{min-height:28px;color:var(--muted);align-items:center;gap:10px;display:inline-flex}.contact-link strong{color:var(--text);font-size:14px}.contact-link:hover strong{text-underline-offset:3px;text-decoration:underline}@media (hover:hover) and (pointer:fine){.brand:hover .opensale-logo{box-shadow:5px 5px 0 var(--ink);transform:translate(-1px,-1px)}.program-card:hover{box-shadow:7px 7px 0 var(--shadow);transform:translate(-2px,-2px)}}.program-card:active{box-shadow:1px 1px 0 var(--shadow);transform:translate(3px,3px)}.brand:active .opensale-logo{box-shadow:1px 1px 0 var(--ink);transform:translate(3px,3px)}@media (width<=1050px){.programs{grid-template-columns:repeat(2,minmax(0,1fr))}.program-card{min-height:262px}.intro{gap:24px}.desktop-break{display:none}}@media (width<=680px){.site-nav{gap:12px;min-height:72px;padding:12px 20px}.opensale-logo{font-size:20px}.workspace{padding:0 20px}.intro{grid-template-columns:1fr;gap:16px;padding:24px 0}.eyebrow{margin-bottom:10px;font-size:10px}h1{font-size:clamp(25px,5.6vw,30px)}.intro-aside{padding:0}.intro-copy{font-size:13px;line-height:1.6}.intro-note{margin-top:10px}.programs{gap:16px}.program-card{min-height:276px;padding:15px}.card-title{font-size:21px}.card-description,.card-purpose{font-size:12px}.card-icon{width:40px;height:40px}.primary-badge{padding:5px 6px;font-size:10px}.site-footer{margin-top:28px}}@media (width<=480px){.programs{grid-template-columns:1fr}.program-card{min-height:250px;padding:20px}.card-content{margin-top:16px}.card-title{font-size:24px}.card-description{font-size:14px}.card-purpose,.card-action{font-size:13px}.primary-badge{font-size:11px}}@media (prefers-reduced-motion:reduce){*,:before,:after{scroll-behavior:auto!important;transition:none!important;animation:none!important}.brand:hover .opensale-logo,.brand:active .opensale-logo{transform:none}}