:root{--border:3px solid var(--ink);--border-thin:2px solid var(--ink);--border-thick:4px solid var(--ink);--shadow-sm:3px 3px 0 0 var(--ink);--shadow:5px 5px 0 0 var(--ink);--shadow-lg:8px 8px 0 0 var(--ink);--radius:0;--ink:#000;--text:#000;--muted:#444;--surface:#fff;--surface-2:#f5f0e8;--bg:#fffdf5;--black:#000;--white:#fff;--yellow:#ffd23f;--yellow-light:#fff3c4;--pink:#ff6b6b;--pink-light:#ffe0e0;--blue:#74b9ff;--blue-light:#e3f2fd;--green:#88d498;--green-light:#e8f5e9;--water:#0077c8;--sc:#c00;--font-display:-apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, "Apple SD Gothic Neo", "Noto Sans KR", sans-serif;--font-heading:-apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, "Apple SD Gothic Neo", "Noto Sans KR", sans-serif;--font-body:-apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, "Apple SD Gothic Neo", "Noto Sans KR", sans-serif;--font-mono:ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;--paper:var(--bg);--card:var(--surface);--accent:var(--pink);--sun:var(--yellow)}[data-theme=dark]{--ink:#f3f3f6;--text:#ececed;--muted:#a6a6b0;--surface:#1f1e28;--surface-2:#2b2a37;--bg:#14131a;--paper:var(--bg);--card:var(--surface);--yellow-light:#2a2512;--pink-light:#2d191e;--blue-light:#14202f;--green-light:#13271b}[data-theme=dark] .btn-accent,[data-theme=dark] .badge,[data-theme=dark] .chip.sc,[data-theme=dark] .chip.water,[data-theme=dark] .btn-accent{color:var(--black)}[data-theme=dark] .code-block{background:#0e0e1a}*{box-sizing:border-box}html,body{margin:0;padding:0}html{color-scheme:light}[data-theme=dark]{color-scheme:dark}body{background:var(--bg);color:var(--text);font-family:var(--font-body);line-height:1.55;transition:background-color .2s,color .2s}a{color:inherit}a:focus-visible,button:focus-visible{outline:3px solid var(--blue);outline-offset:3px}::selection{background:var(--yellow);color:var(--black)}.bar{z-index:40;background:var(--surface);border-bottom:var(--border-thick);position:sticky;top:0}.wrap{width:min(920px,100% - 32px);margin:0 auto}.site-head{align-items:center;gap:12px;min-height:64px;padding:10px 0;display:flex}.brand{font-family:var(--font-display);letter-spacing:-.04em;align-items:center;gap:10px;font-size:22px;font-weight:800;text-decoration:none;display:flex}.avatar{border:3px solid var(--ink);background:var(--yellow);width:36px;height:36px;color:var(--black);border-radius:0;place-items:center;font-size:16px;font-weight:800;display:grid}.brand i{color:var(--pink);font-style:normal}.nav{flex-wrap:wrap;align-items:center;gap:8px;margin-left:auto;display:flex}.theme-toggle{border:var(--border-thin);background:var(--surface);width:38px;height:38px;box-shadow:var(--shadow-sm);color:var(--text);cursor:pointer;flex-shrink:0;justify-content:center;align-items:center;padding:0;display:inline-flex}.theme-toggle svg{width:18px;height:18px;display:block}.theme-toggle .icon-sun,[data-theme=dark] .theme-toggle .icon-moon{display:none}[data-theme=dark] .theme-toggle .icon-sun{display:block}.theme-toggle:hover{background:var(--yellow);color:var(--black);box-shadow:var(--shadow);transform:translate(-1px,-1px)}.theme-toggle:active{box-shadow:none;transform:translate(2px,2px)}#top-sentinel{width:1px;height:1px;position:absolute;top:0;left:0}.back-to-top{z-index:80;border:var(--border);background:var(--yellow);width:52px;height:52px;color:var(--black);box-shadow:var(--shadow);cursor:pointer;opacity:0;visibility:hidden;justify-content:center;align-items:center;padding:0;font:700 1.5rem/1 inherit;transition:opacity .2s,transform .2s,box-shadow .1s,visibility .2s;display:flex;position:fixed;bottom:1.5rem;right:1.5rem;transform:translateY(12px)}.back-to-top.is-visible{opacity:1;visibility:visible;transform:translateY(0)}.back-to-top:hover{box-shadow:var(--shadow-lg);transform:translate(-2px,-2px)}.back-to-top:active{box-shadow:none;transform:translate(2px,2px)}.theme-switch{border:var(--border);background:var(--surface);box-shadow:var(--shadow-sm);display:inline-flex}.theme-switch button{appearance:none;min-height:36px;color:var(--muted);font:700 13px/1 var(--font-heading);cursor:pointer;background:0 0;border:0;padding:0 12px}.theme-switch button+button{border-left:var(--border-thin)}.theme-switch button.is-on{background:var(--yellow);color:var(--black)}.btn{border:var(--border);background:var(--surface);min-height:40px;color:var(--text);box-shadow:var(--shadow-sm);font:700 14px/1 var(--font-heading);cursor:pointer;justify-content:center;align-items:center;padding:8px 14px;text-decoration:none;display:inline-flex}.btn:hover{background:var(--yellow);color:var(--black);box-shadow:var(--shadow);transform:translate(-2px,-2px)}.btn:active{box-shadow:none;transform:translate(2px,2px)}.btn-accent,.btn-accent:hover{background:var(--yellow);color:var(--black)}.hero{padding:28px 0 24px}.hero-band{background:var(--yellow);color:var(--black);border-bottom:var(--border-thick);padding:36px 0 40px}.hero-band h1{font-family:var(--font-display);letter-spacing:-.04em;color:var(--black);margin:0 0 12px;padding-bottom:4px;font-size:clamp(28px,5.5vw,46px);font-weight:800;line-height:1.14}.hero-band h1 em{color:var(--black);font-style:italic}.hero-band p{color:#1a1a1a;max-width:46ch;margin:0;font-size:16px}.badge{background:var(--yellow);color:var(--black);border:var(--border-thin);box-shadow:var(--shadow-sm);font-family:var(--font-mono);letter-spacing:.1em;text-transform:uppercase;margin-bottom:12px;padding:4px 10px;font-size:11px;font-weight:700;display:inline-block}.badge-pink{background:var(--pink)}.divider-band{border:0;border-top:var(--border-thick);border-bottom:var(--border-thick);background:var(--pink);height:16px;margin:0;display:block}.hero h1{font-family:var(--font-display);letter-spacing:-.04em;margin:0 0 12px;padding-bottom:4px;font-size:clamp(28px,5.5vw,46px);font-weight:800;line-height:1.14}.hero h1 em{color:var(--pink);font-style:italic}.hero p{max-width:46ch;color:var(--muted);margin:0;font-size:16px}.grid{perspective:900px;grid-template-columns:1fr;gap:18px;padding-bottom:36px;display:grid}@media (width>=720px){.grid{grid-template-columns:1fr 1fr}}.sec-label{border:var(--border-thin);background:var(--surface);box-shadow:var(--shadow-sm);font-family:var(--font-mono);letter-spacing:.08em;text-transform:uppercase;margin:28px 0 16px;padding:.35rem .75rem;font-size:12px;font-weight:700;display:inline-block}.home-note-hint{color:var(--muted);margin:0 0 14px;font-size:14px}.home-note-hint a{text-underline-offset:2px;font-weight:800;text-decoration:underline}.note-bar{border:var(--border);background:var(--surface);box-shadow:var(--shadow-sm);transform-style:preserve-3d;justify-content:space-between;align-items:baseline;gap:16px;margin-bottom:16px;padding:16px 18px;text-decoration:none;transition:transform .16s ease-out,box-shadow .16s ease-out;display:flex}.note-bar:last-of-type{margin-bottom:48px}.note-bar:hover{background:var(--yellow);color:var(--black);box-shadow:var(--shadow)}.note-bar:hover span{color:var(--black)}.note-bar strong{font-family:var(--font-heading);font-size:18px}.note-bar span{color:var(--muted);font-size:14px}.card{background:var(--surface);border:var(--border);box-shadow:var(--shadow);transform-style:preserve-3d;flex-direction:column;gap:10px;padding:22px 20px 20px;text-decoration:none;transition:transform .16s ease-out,box-shadow .16s ease-out;display:flex}.card:hover{box-shadow:var(--shadow-lg)}.card.fill-paper{background:var(--surface)}.card.fill-yellow,.card.fill-pink,.card.fill-blue{color:var(--black)}.card.fill-yellow{background:var(--yellow)}.card.fill-pink{background:var(--pink)}.card.fill-blue{background:var(--blue)}.card.fill-yellow p,.card.fill-pink p,.card.fill-blue p,.card.fill-yellow .kicker,.card.fill-pink .kicker,.card.fill-blue .kicker{color:#1a1a1a}.card.alt{background:var(--yellow);color:var(--black)}.kicker{font-family:var(--font-mono);letter-spacing:.1em;text-transform:uppercase;font-size:11px;font-weight:700}.card h2{font-family:var(--font-heading);letter-spacing:-.03em;margin:0;font-size:24px}.card p{color:var(--muted);margin:0}.go{font-weight:800}.site-foot{color:var(--muted);font-size:13px;font-family:var(--font-mono);padding:20px 0 40px}.site-foot.band{background:var(--black);color:#c9c9d1;border-top:var(--border-thick);margin-top:8px;padding:22px 0}.day{background:var(--surface);border:var(--border);box-shadow:var(--shadow);margin:0 0 22px;padding:20px}.day h2{font-family:var(--font-heading);margin:0 0 12px;font-size:24px}.day table{border-collapse:collapse;width:100%}.day th,.day td{text-align:left;border-bottom:var(--border-thin);vertical-align:top;padding:8px 6px}.day th{width:7.5rem;font-size:13px;font-family:var(--font-mono)}.chip{border:2px solid var(--ink);margin-right:4px;padding:1px 6px;font-size:11px;font-weight:800;display:inline-block}.chip.sc{background:var(--sc);color:#fff}.chip.water{background:var(--water);color:#fff}.actions{flex-wrap:wrap;gap:8px;margin:16px 0 28px;display:flex}.map-frame{border:var(--border);height:min(70vh,640px);box-shadow:var(--shadow);background:var(--surface);margin:0 0 28px}.map-frame iframe{border:0;width:100%;height:100%}.prose{max-width:68ch;padding-bottom:56px}.prose-plc{max-width:82ch}.prose h2{font-family:var(--font-heading);margin:2rem 0 .75rem;font-size:1.4rem}.prose h3{font-family:var(--font-heading);margin:1.4rem 0 .55rem;font-size:1.08rem}.prose p{margin:0 0 1rem}.prose p+p{margin-top:0}.prose ul,.prose ol{margin:0 0 1rem;padding-left:1.25rem}.prose li{margin:.2rem 0}.prose table{border-collapse:collapse;width:100%;font-size:.88rem;font-family:var(--font-mono);margin:0 0 1.25rem}.prose th,.prose td{border:var(--border-thin);text-align:left;vertical-align:top;padding:.45rem .55rem}.prose th{background:var(--yellow);color:var(--black);font-weight:700}.note-meta{color:var(--muted);font-family:var(--font-mono);margin:0 0 1.25rem;font-size:.8rem}code{font-family:var(--font-mono);background:var(--surface-2);color:var(--text);border:1px solid color-mix(in srgb, var(--ink) 22%, transparent);padding:.12em .4em;font-size:.88em}.code-block,.code-block code,.code-block span{box-shadow:none;color:inherit;background:0 0;border:0;padding:0}.code-label{background:var(--ink);color:var(--bg);font-family:var(--font-mono);text-transform:uppercase;letter-spacing:.08em;border:var(--border);z-index:1;margin-bottom:-3px;padding:.25rem .75rem;font-size:.72rem;display:inline-block;position:relative}[data-theme=dark] .code-label{background:var(--yellow);color:var(--black)}.code-block-wrap{margin:0 0 1.5rem;position:relative}.code-block{color:#e8e8ee;border:var(--border);font-family:var(--font-mono);box-shadow:var(--shadow);white-space:pre;background:#1a1a2e;margin:0;padding:1rem 1.1rem;font-size:.84rem;line-height:1.7;overflow-x:auto}.code-block .comment{color:#8b8b96}.code-block .property,.code-block .type{color:#7fdbda}.code-block .value,.code-block .num{color:#ffd23f}.code-block .selector,.code-block .kw{color:#ff6b6b}.code-block .tag,.code-block .fn{color:#74b9ff}.code-block .string{color:#88d498}.code-copy{font-family:var(--font-mono);text-transform:uppercase;letter-spacing:.05em;color:#c9c9d1;cursor:pointer;background:#ffffff14;border:2px solid #ffffff40;padding:.3rem .7rem;font-size:.65rem;position:absolute;top:.5rem;right:.5rem}.code-copy:hover{background:var(--yellow);color:var(--black);border-color:var(--yellow)}.code-copy.is-copied{background:var(--green);color:var(--black);border-color:var(--green)}.note-list{gap:14px;padding-bottom:48px;display:grid}.prose pre,.prose pre.astro-code{color:#e8e8ee;border:var(--border);box-shadow:var(--shadow);font-family:var(--font-mono);margin:0 0 1.5rem;padding:1rem 1.1rem;font-size:.84rem;line-height:1.7;overflow-x:auto;background:#1a1a2e!important}.prose pre code{color:inherit;font-size:inherit;background:0 0;border:0;padding:0}.board{border:var(--border);background:var(--surface);box-shadow:var(--shadow);gap:0;margin:0 0 48px;display:grid}.board-row{border-top:var(--border-thin);grid-template-columns:7.5rem 1fr;gap:8px 16px;padding:14px 16px;text-decoration:none;display:grid}.board-row:first-child{border-top:0}.board-row:hover{background:var(--yellow);color:var(--black)}.board-row:hover .board-ex{color:var(--black)}.board-date{font-family:var(--font-mono);color:var(--muted);font-size:12px}.board-row:hover .board-date{color:var(--black)}.board-title{font-family:var(--font-heading);font-size:17px;font-weight:700}.board-ex{color:var(--muted);margin-top:2px;font-size:14px;display:block}@media (width<=720px){.board-row{grid-template-columns:1fr;gap:4px}}[hidden],[data-note-item][hidden],.mod-block[hidden],.insight-card[hidden],.board[hidden]{display:none!important}.visually-hidden{clip:rect(0, 0, 0, 0);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}.mod-bar{border:var(--border);background:var(--yellow-light);box-shadow:var(--shadow-sm);margin:0 0 18px;padding:12px 14px}.mod-bar-help{margin:0 0 10px;font-size:14px;font-weight:700}.mod-bar-row{flex-wrap:wrap;align-items:center;gap:8px;display:flex}.mod-bar-kicker{font-family:var(--font-mono);letter-spacing:.08em;text-transform:uppercase;margin-right:4px;font-size:11px;font-weight:700}.mod-chip,.tag-chip{appearance:none;border:var(--border-thin);background:var(--surface);min-height:32px;color:var(--text);box-shadow:var(--shadow-sm);font:700 13px/1 var(--font-heading);cursor:pointer;padding:4px 10px}.mod-chip.is-on,.tag-chip.is-on{background:var(--yellow);color:var(--black)}.mod-chip:hover,.tag-chip:hover{box-shadow:var(--shadow);transform:translate(-1px,-1px)}.tag-search input{border:var(--border);background:var(--surface);width:100%;min-height:44px;color:var(--text);box-shadow:var(--shadow-sm);font:16px/1.4 var(--font-body);margin:0 0 12px;padding:8px 12px}.tag-row{flex-wrap:wrap;gap:8px;margin:0 0 20px;display:flex}.tag-empty{color:var(--muted);margin:0 0 16px}.insight-grid{perspective:900px;grid-template-columns:1fr;gap:18px;margin:0 0 36px;display:grid}@media (width>=720px){.insight-grid{grid-template-columns:1fr 1fr}}.insight-card{color:inherit;perspective:900px;text-decoration:none;display:block}.insight-tilt{height:100%;transform-style:preserve-3d;transition:transform .16s ease-out}.insight-inner{border:var(--border);background:var(--surface);height:100%;box-shadow:var(--shadow);flex-direction:column;gap:10px;padding:18px 18px 16px;display:flex}.insight-card:hover .insight-inner{box-shadow:var(--shadow-lg)}.insight-kicker{border:var(--border-thin);background:var(--yellow);color:var(--black);font-family:var(--font-mono);letter-spacing:.06em;text-transform:uppercase;align-self:flex-start;padding:3px 8px;font-size:11px;font-weight:700}.insight-title{font-family:var(--font-heading);letter-spacing:-.03em;margin:0;font-size:20px;line-height:1.25}.insight-card:hover .insight-title{text-underline-offset:3px;text-decoration:underline}.insight-ex{color:var(--muted);flex:1;margin:0;font-size:14px}.insight-tags{flex-wrap:wrap;gap:6px;margin:0;display:flex}.insight-tags span{border:var(--border-thin);padding:2px 7px;font-size:12px;font-weight:700}.insight-foot{border-top:var(--border-thin);justify-content:space-between;align-items:baseline;gap:12px;margin:8px 0 0;padding-top:10px;font-size:13px;display:flex}.insight-read{color:var(--pink);font-weight:800}.insight-card:hover .insight-read{display:inline-block;transform:translate(4px)}.note-tags{flex-wrap:wrap;gap:8px;margin:12px 0 0;display:flex}.note-tags a{border:var(--border-thin);background:var(--surface);box-shadow:var(--shadow-sm);padding:2px 8px;font-size:13px;font-weight:700;text-decoration:none}.note-tags a:hover{background:var(--yellow);color:var(--black)}.info-src{color:var(--muted);margin:0 0 48px;font-size:13px}.info-src a{text-underline-offset:2px;font-weight:700;text-decoration:underline}.course-grid{grid-template-columns:1fr;gap:16px;margin:0 0 28px;display:grid}@media (width>=720px){.course-grid{grid-template-columns:1fr 1fr}}.course-card{background:var(--surface);border:var(--border);box-shadow:var(--shadow);padding:20px 18px 18px}.course-card.featured{background:var(--yellow);color:var(--black)}.course-card.featured p{color:#1a1a1a}.course-card h2{margin:0 0 8px;font-size:22px}.course-card p{margin:0 0 14px}.trip-map-wrap{border:var(--border);box-shadow:var(--shadow);background:var(--surface);margin:0 0 28px;overflow:hidden}.trip-map-bar{border-bottom:var(--border-thin);flex-wrap:wrap;justify-content:space-between;align-items:center;gap:8px;padding:10px 12px;display:flex}.trip-map-bar strong{font-size:14px}.trip-map{background:#dce6d2;height:min(52vh,440px)}.pick-grid{grid-template-columns:1fr;gap:12px;margin:0 0 36px;display:grid}@media (width>=720px){.pick-grid{grid-template-columns:1fr 1fr}}.pick-card{border:var(--border);background:var(--surface);box-shadow:var(--shadow-sm);flex-direction:column;gap:6px;padding:14px 14px 12px;text-decoration:none;display:flex}.pick-card h3{margin:0;font-size:17px}.pick-card p{color:var(--muted);margin:0;font-size:13px}.pick-links{flex-wrap:wrap;gap:8px;margin-top:6px;display:flex}.pick-links a{color:inherit;border-bottom:2px solid var(--ink);font-size:12px;font-weight:800;text-decoration:none}.pick-links a:hover{background:var(--yellow)}.comments{margin:40px 0 56px;padding-top:8px}.comments-hint{max-width:46ch;color:var(--muted);margin:0 0 14px;font-size:14px}.comments-box{border:var(--border);background:var(--surface);box-shadow:var(--shadow);padding:8px 10px 4px}.giscus,.giscus-frame{width:100%}.giscus-frame{border:0}@media (width<=720px){:root{--shadow:4px 4px 0 0 var(--ink);--shadow-lg:6px 6px 0 0 var(--ink)}.note-bar{flex-direction:column;align-items:flex-start;gap:6px}}@media (prefers-reduced-motion:reduce){.btn:hover,.btn:active,.note-bar:hover,.theme-toggle:hover,.theme-toggle:active,.back-to-top:hover,.back-to-top:active,.mod-chip:hover,.tag-chip:hover,.insight-card:hover .insight-read{transform:none}.insight-tilt,.card,.note-bar,.back-to-top{transition:none}}