.chatw{right:1rem;bottom:calc(1rem + env(safe-area-inset-bottom));z-index:50;font-family:var(--sans);flex-direction:column;align-items:flex-end;gap:.6rem;display:flex;position:fixed}.chatw-fab{border:1px solid var(--line);background:var(--card);color:var(--fg);font:600 .85rem/1 var(--sans);cursor:pointer;border-radius:999px;align-items:center;gap:.45rem;padding:.3rem .85rem .3rem .35rem;transition:transform .15s;display:flex;box-shadow:0 10px 30px -14px #00000073}.chatw-fab:hover{transform:translateY(-2px)}.chatw-fab:focus-visible{outline:2px solid var(--accent);outline-offset:2px}.chatw-fab svg{display:block}.chatw-count:empty{display:none}.chatw-fab.live .chatw-count:before{content:"";vertical-align:.05em;background:#22c55e;border-radius:50%;width:.5rem;height:.5rem;margin-right:.35rem;display:inline-block}.chatw-fab.new{border-color:var(--accent);animation:1.2s ease-in-out 2 chatw-nudge}@keyframes chatw-nudge{50%{transform:translateY(-4px)}}.chatw-panel{background:var(--card);width:min(22rem,100vw - 2rem);max-height:min(32rem,100dvh - 6rem);color:var(--fg);border:1px solid var(--line);border-radius:18px;flex-direction:column;animation:.18s ease-out chatw-in;display:flex;overflow:hidden;box-shadow:0 24px 50px -24px #00000080}.chatw-panel[hidden]{display:none}@keyframes chatw-in{0%{opacity:0;transform:translateY(8px)}}.chatw-panel header{border-bottom:1px solid var(--line);justify-content:space-between;align-items:flex-start;gap:.5rem;padding:.8rem 1rem .6rem;display:flex}.chatw-panel header strong{font-size:.95rem;line-height:1.3;display:block}.chatw-status{color:var(--muted);font-size:.78rem;line-height:1.4;display:block}.chatw-x{font:inherit;color:var(--muted);cursor:pointer;background:0 0;border:0;border-radius:8px;padding:.1rem .35rem;font-size:1.3rem;line-height:1}.chatw-x:hover{color:var(--fg)}.chatw-body{flex:1;min-height:6rem;padding:.6rem 1rem;font-size:.9rem;line-height:1.5;overflow-y:auto}.chatw-log{gap:.5rem;margin:0;padding:0;list-style:none;display:grid}.chatw-log li{overflow-wrap:anywhere;display:grid}.chatw-log .who{color:var(--muted);font-size:.72rem}.chatw-log .mine .who{color:var(--accent)}.chatw-book{margin-top:.6rem}.chatw-alone{color:var(--muted);margin:0 0 .6rem}.chatw-book h3{font:600 .72rem var(--mono);text-transform:uppercase;letter-spacing:.08em;color:var(--accent-2);margin:0 0 .4rem}.chatw-book ul{gap:.5rem;margin:0 0 .6rem;padding:0;list-style:none;display:grid}.chatw-book li{background:var(--bg);border:1px solid var(--line);overflow-wrap:anywhere;border-radius:12px;padding:.5rem .7rem}.chatw-book li p{margin:0}.chatw-book li time{color:var(--muted);font-size:.72rem}.chatw-book li.empty{color:var(--muted)}.chatw-book a{font-size:.85rem}.chatw-form{border-top:1px solid var(--line);gap:.4rem;padding:.6rem .75rem 0;display:flex}.chatw-form input{min-width:0;font:inherit;color:var(--fg);background:var(--bg);border:1px solid var(--line);border-radius:10px;flex:1;padding:.45rem .7rem;font-size:16px}.chatw-form input:focus{border-color:var(--accent);outline:none}.chatw-form button{font:600 .85rem var(--sans);background:var(--fg);color:var(--bg);cursor:pointer;border:0;border-radius:10px;padding:.45rem .85rem}.chatw-err{min-height:1.1em;color:var(--accent);margin:.25rem .9rem 0;font-size:.78rem}.chatw-hint{color:var(--muted);margin:0 .9rem .6rem;font-size:.7rem;line-height:1.4}@media (prefers-reduced-motion:reduce){.chatw-fab,.chatw-fab.new,.chatw-panel{transition:none;animation:none}.chatw-fab:hover{transform:none}}:root{--bg:#f6f0e4;--bg-2:#efe6d4;--card:#fbf7ef;--fg:#241f19;--muted:#6f655a;--line:#e2d6c1;--accent:#c2410c;--accent-2:#1d4e5f;--ink:#2b241c;--lane-study:#b45309;--lane-teardown:#0f766e;--lane-build:#c2410c;--lane-agents:#6d28d9;--spot:#c2410c12;--serif:"Fraunces", "Nanum Myeongjo", Georgia, serif;--sans:"Pretendard Variable", Pretendard, -apple-system, BlinkMacSystemFont, "Apple SD Gothic Neo", sans-serif;--mono:"JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;color-scheme:light}@media (prefers-color-scheme:dark){:root:not([data-theme=light]){--bg:#0e1726;--bg-2:#132036;--card:#15233a;--fg:#e6e9ef;--muted:#93a1b8;--line:#22324d;--accent:#fb923c;--accent-2:#7dd3c0;--ink:#e6e9ef;--lane-study:#fbbf24;--lane-teardown:#5eead4;--lane-build:#fb923c;--lane-agents:#c4b5fd;--spot:#7dd3c017;color-scheme:dark}}:root[data-theme=dark]{--bg:#0e1726;--bg-2:#132036;--card:#15233a;--fg:#e6e9ef;--muted:#93a1b8;--line:#22324d;--accent:#fb923c;--accent-2:#7dd3c0;--ink:#e6e9ef;--lane-study:#fbbf24;--lane-teardown:#5eead4;--lane-build:#fb923c;--lane-agents:#c4b5fd;--spot:#7dd3c017;color-scheme:dark}*{box-sizing:border-box}html{background:var(--bg);color:var(--fg);scroll-behavior:smooth}body{min-height:100vh;font:17px/1.75 var(--sans);letter-spacing:-.003em;word-break:keep-all;overflow-wrap:break-word;-webkit-font-smoothing:antialiased;background:radial-gradient(1200px 600px at 100% -10%, var(--bg-2), transparent 60%), var(--bg);margin:0}::selection{background:var(--accent);color:var(--bg)}a{color:var(--accent);background:linear-gradient(currentColor,currentColor) 0 100%/0 1.5px no-repeat;text-decoration:none;transition:background-size .25s}a:hover{background-size:100% 1.5px}.spotlight{pointer-events:none;z-index:0;background:radial-gradient(500px circle at var(--x,-999px) var(--y,-999px), var(--spot), transparent 60%);position:fixed;inset:0}.wordmark{font-family:var(--serif);color:var(--fg);letter-spacing:-.02em;background:0 0;font-size:2.6rem;font-weight:700;line-height:1}.wordmark.small{white-space:nowrap;font-size:1.25rem}.shell{z-index:1;grid-template-columns:1fr;max-width:76rem;margin:0 auto;padding:0 1.5rem;display:grid;position:relative}.rail{padding:3rem 0 1rem}.rail .role{font-family:var(--mono);text-transform:uppercase;letter-spacing:.08em;color:var(--accent);margin:1rem 0 0;font-size:.8rem}.rail .pitch{color:var(--muted);max-width:22rem;margin:.5rem 0 0}.railnav{display:none}.railfoot{flex-wrap:wrap;align-items:center;gap:1rem;margin-top:1.5rem;font-size:.9rem;display:flex}.content{min-width:0;padding:1rem 0 5rem}@media (width>=64rem){.shell{grid-template-columns:20rem 1fr;gap:4rem}.rail{flex-direction:column;height:100vh;padding:5rem 0 3rem;display:flex;position:sticky;top:0}.railnav{flex-direction:column;gap:.9rem;margin-top:3.5rem;display:flex}.railnav a{color:var(--muted);font-family:var(--mono);text-transform:uppercase;letter-spacing:.12em;background:0 0;align-items:center;gap:1rem;font-size:.75rem;display:flex}.railnav a:before{content:"";background:currentColor;width:2rem;height:1px;transition:width .25s}.railnav a:hover,.railnav a.active{color:var(--fg)}.railnav a:hover:before,.railnav a.active:before{width:4rem}.railfoot{margin-top:auto}.content{padding:5rem 0 6rem}}.progress{background:var(--accent);transform-origin:0;z-index:10;height:3px;position:fixed;top:0;left:0;right:0;transform:scaleX(0)}.topbar{z-index:2;justify-content:space-between;align-items:center;gap:1rem;max-width:46rem;margin:0 auto;padding:1.75rem 1rem;display:flex;position:relative}.topbar nav{align-items:center;gap:1.1rem;font-size:.95rem;display:flex}.topbar nav a{color:var(--muted)}.topbar nav a[aria-current]{color:var(--fg)}main.reading{z-index:1;max-width:46rem;margin:0 auto;padding:1.5rem 1rem 4rem;position:relative}.foot{z-index:1;border-top:1px solid var(--line);max-width:46rem;color:var(--muted);margin:0 auto;padding:2rem 1rem 4rem;font-size:.9rem;position:relative}.langs{font-size:.9rem;position:relative}.langs summary{cursor:pointer;color:var(--accent);list-style:none}.langs summary::-webkit-details-marker{display:none}.langs summary:after{content:" ▾";font-size:.7em}.langs ul{background:var(--card);border:1px solid var(--line);z-index:5;border-radius:10px;min-width:8rem;margin:0 0 .4rem;padding:.4rem 0;list-style:none;position:absolute;bottom:100%;left:0;box-shadow:0 10px 30px -18px #0006}.topbar .langs ul{margin:.4rem 0 0;inset:100% 0 auto auto}.langs li a{background:0 0;padding:.3rem .9rem;display:block}.langs li a:hover{background:var(--bg-2)}:lang(zh-Hans) body{font-family:var(--sans), "PingFang SC", "Hiragino Sans GB", "Noto Sans SC", "Microsoft YaHei", sans-serif}:lang(zh-Hans) h1,:lang(zh-Hans) h2,:lang(zh-Hans) h3{font-family:"PingFang SC", "Noto Sans SC", var(--sans);letter-spacing:0;font-weight:700}.theme{border:1px solid var(--line);background:var(--card);cursor:pointer;border-radius:50%;place-items:center;width:2rem;height:2rem;padding:0;display:grid}.theme span{background:var(--fg);width:.9rem;height:.9rem;box-shadow:inset -.35rem -.1rem 0 0 var(--card);border-radius:50%;transition:transform .4s}.theme:hover span{transform:rotate(-30deg)scale(1.1)}h1,h2,h3{font-family:var(--serif);letter-spacing:-.015em;color:var(--ink);font-weight:650;line-height:1.2}:lang(ko) h1,:lang(ko) h2,:lang(ko) h3{font-family:var(--sans);letter-spacing:-.03em;font-weight:750}.block{padding-top:5rem;scroll-margin-top:2rem}.block h2{margin:0 0 1.5rem;font-size:2rem}.eyebrow{font-family:var(--mono);text-transform:uppercase;letter-spacing:.12em;color:var(--muted);margin:0 0 1rem;font-size:.75rem}:lang(ko) .eyebrow,:lang(ko) .railnav a,:lang(ko) .rail .role{letter-spacing:.02em;font-family:var(--sans);text-transform:none;font-weight:500}code{font-family:var(--mono);background:var(--bg-2);border-radius:4px;padding:.1em .35em;font-size:.88em}pre{border:1px solid var(--line);border-radius:10px;padding:1rem 1.2rem;overflow-x:auto;background:var(--card)!important}pre code{background:0 0;padding:0}table{border-collapse:collapse;width:100%;font-size:.95rem;display:block;overflow-x:auto}th,td{border-bottom:1px solid var(--line);text-align:left;padding:.5rem .7rem}img{border-radius:10px;max-width:100%;height:auto}blockquote{border-left:3px solid var(--accent);color:var(--muted);margin:1.5rem 0;padding:.2rem 1.2rem}@media (prefers-reduced-motion:reduce){*,:before{transition:none!important;animation:none!important}html{scroll-behavior:auto}}.mascot[data-astro-cid-nc4tnjkm]{transform-origin:50% 100%;line-height:0;animation:3.2s ease-in-out infinite bob;display:inline-block}.mascot[data-astro-cid-nc4tnjkm]:hover,.mascot[data-astro-cid-nc4tnjkm].near{animation-duration:.7s}.mascot[data-astro-cid-nc4tnjkm].near{animation-name:hop}@keyframes hop{0%,to{transform:translateY(0)scale(1)}40%{transform:translateY(-10px)scale(.97,1.03)}70%{transform:translateY(0)scale(1.03,.97)}}.mascot[data-astro-cid-nc4tnjkm] .eyes{transition:transform .12s ease-out}.mascot[data-astro-cid-nc4tnjkm] .arm{transform-box:view-box;transition:transform .18s ease-out}.mascot[data-astro-cid-nc4tnjkm] .lids{transform-box:fill-box;transform-origin:50%;transition:transform 80ms}.mascot[data-astro-cid-nc4tnjkm] .lids.blink{transform:scaleY(.1)}@keyframes bob{0%,to{transform:translateY(0)rotate(0)}50%{transform:translateY(-8px)rotate(-2deg)}}@media (prefers-reduced-motion:reduce){.mascot[data-astro-cid-nc4tnjkm]{animation:none}}