@layer properties{@supports (((-webkit-hyphens:none)) and (not (margin-trim:inline))) or ((-moz-orient:inline) and (not (color:rgb(from red r g b)))){*,:before,:after,::backdrop{--tw-rotate-x:initial;--tw-rotate-y:initial;--tw-rotate-z:initial;--tw-skew-x:initial;--tw-skew-y:initial;--tw-border-style:solid;--tw-shadow:0 0 #0000;--tw-shadow-color:initial;--tw-shadow-alpha:100%;--tw-inset-shadow:0 0 #0000;--tw-inset-shadow-color:initial;--tw-inset-shadow-alpha:100%;--tw-ring-color:initial;--tw-ring-shadow:0 0 #0000;--tw-inset-ring-color:initial;--tw-inset-ring-shadow:0 0 #0000;--tw-ring-inset:initial;--tw-ring-offset-width:0px;--tw-ring-offset-color:#fff;--tw-ring-offset-shadow:0 0 #0000;--tw-outline-style:solid;--tw-blur:initial;--tw-brightness:initial;--tw-contrast:initial;--tw-grayscale:initial;--tw-hue-rotate:initial;--tw-invert:initial;--tw-opacity:initial;--tw-saturate:initial;--tw-sepia:initial;--tw-drop-shadow:initial;--tw-drop-shadow-color:initial;--tw-drop-shadow-alpha:100%;--tw-drop-shadow-size:initial}}}@layer theme{:root,:host{--font-sans:ui-sans-serif, system-ui, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji";--font-mono:ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;--spacing:.25rem;--default-transition-duration:.15s;--default-transition-timing-function:cubic-bezier(.4, 0, .2, 1);--default-font-family:var(--font-sans);--default-mono-font-family:var(--font-mono)}}@layer base{*,:after,:before,::backdrop{box-sizing:border-box;border:0 solid;margin:0;padding:0}::file-selector-button{box-sizing:border-box;border:0 solid;margin:0;padding:0}html,:host{-webkit-text-size-adjust:100%;tab-size:4;line-height:1.5;font-family:var(--default-font-family,ui-sans-serif, system-ui, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji");font-feature-settings:var(--default-font-feature-settings,normal);font-variation-settings:var(--default-font-variation-settings,normal);-webkit-tap-highlight-color:transparent}hr{height:0;color:inherit;border-top-width:1px}abbr:where([title]){-webkit-text-decoration:underline dotted;text-decoration:underline dotted}h1,h2,h3,h4,h5,h6{font-size:inherit;font-weight:inherit}a{color:inherit;-webkit-text-decoration:inherit;-webkit-text-decoration:inherit;-webkit-text-decoration:inherit;-webkit-text-decoration:inherit;text-decoration:inherit}b,strong{font-weight:bolder}code,kbd,samp,pre{font-family:var(--default-mono-font-family,ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace);font-feature-settings:var(--default-mono-font-feature-settings,normal);font-variation-settings:var(--default-mono-font-variation-settings,normal);font-size:1em}small{font-size:80%}sub,sup{vertical-align:baseline;font-size:75%;line-height:0;position:relative}sub{bottom:-.25em}sup{top:-.5em}table{text-indent:0;border-color:inherit;border-collapse:collapse}:-moz-focusring{outline:auto}progress{vertical-align:baseline}summary{display:list-item}ol,ul,menu{list-style:none}img,svg,video,canvas,audio,iframe,embed,object{vertical-align:middle;display:block}img,video{max-width:100%;height:auto}button,input,select,optgroup,textarea{font:inherit;font-feature-settings:inherit;font-variation-settings:inherit;letter-spacing:inherit;color:inherit;opacity:1;background-color:#0000;border-radius:0}::file-selector-button{font:inherit;font-feature-settings:inherit;font-variation-settings:inherit;letter-spacing:inherit;color:inherit;opacity:1;background-color:#0000;border-radius:0}:where(select:is([multiple],[size])) optgroup{font-weight:bolder}:where(select:is([multiple],[size])) optgroup option{padding-inline-start:20px}::file-selector-button{margin-inline-end:4px}::placeholder{opacity:1}@supports (not ((-webkit-appearance:-apple-pay-button))) or (contain-intrinsic-size:1px){::placeholder{color:currentColor}@supports (color:color-mix(in lab, red, red)){::placeholder{color:color-mix(in oklab, currentcolor 50%, transparent)}}}textarea{resize:vertical}::-webkit-search-decoration{-webkit-appearance:none}::-webkit-date-and-time-value{min-height:1lh;text-align:inherit}::-webkit-datetime-edit{display:inline-flex}::-webkit-datetime-edit-fields-wrapper{padding:0}::-webkit-datetime-edit{padding-block:0}::-webkit-datetime-edit-year-field{padding-block:0}::-webkit-datetime-edit-month-field{padding-block:0}::-webkit-datetime-edit-day-field{padding-block:0}::-webkit-datetime-edit-hour-field{padding-block:0}::-webkit-datetime-edit-minute-field{padding-block:0}::-webkit-datetime-edit-second-field{padding-block:0}::-webkit-datetime-edit-millisecond-field{padding-block:0}::-webkit-datetime-edit-meridiem-field{padding-block:0}::-webkit-calendar-picker-indicator{line-height:1}:-moz-ui-invalid{box-shadow:none}button,input:where([type=button],[type=reset],[type=submit]){appearance:button}::file-selector-button{appearance:button}::-webkit-inner-spin-button{height:auto}::-webkit-outer-spin-button{height:auto}[hidden]:where(:not([hidden=until-found])){display:none!important}}@layer components;@layer utilities{.collapse{visibility:collapse}.visible{visibility:visible}.sr-only{clip-path:inset(50%);white-space:nowrap;border-width:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}.absolute{position:absolute}.fixed{position:fixed}.relative{position:relative}.static{position:static}.start{inset-inline-start:var(--spacing)}.end{inset-inline-end:var(--spacing)}.isolate{isolation:isolate}.container{width:100%}@media (min-width:40rem){.container{max-width:40rem}}@media (min-width:48rem){.container{max-width:48rem}}@media (min-width:64rem){.container{max-width:64rem}}@media (min-width:80rem){.container{max-width:80rem}}@media (min-width:96rem){.container{max-width:96rem}}.block{display:block}.contents{display:contents}.flex{display:flex}.grid{display:grid}.hidden{display:none}.inline{display:inline}.inline-flex{display:inline-flex}.table{display:table}.transform{transform:var(--tw-rotate-x,) var(--tw-rotate-y,) var(--tw-rotate-z,) var(--tw-skew-x,) var(--tw-skew-y,)}.resize{resize:both}.rounded{border-radius:.25rem}.border{border-style:var(--tw-border-style);border-width:1px}.italic{font-style:italic}.shadow{--tw-shadow:0 1px 3px 0 var(--tw-shadow-color,#0000001a), 0 1px 2px -1px var(--tw-shadow-color,#0000001a);box-shadow:var(--tw-inset-shadow), var(--tw-inset-ring-shadow), var(--tw-ring-offset-shadow), var(--tw-ring-shadow), var(--tw-shadow)}.outline{outline-style:var(--tw-outline-style);outline-width:1px}.blur{--tw-blur:blur(8px);filter:var(--tw-blur,) var(--tw-brightness,) var(--tw-contrast,) var(--tw-grayscale,) var(--tw-hue-rotate,) var(--tw-invert,) var(--tw-saturate,) var(--tw-sepia,) var(--tw-drop-shadow,)}.filter{filter:var(--tw-blur,) var(--tw-brightness,) var(--tw-contrast,) var(--tw-grayscale,) var(--tw-hue-rotate,) var(--tw-invert,) var(--tw-saturate,) var(--tw-sepia,) var(--tw-drop-shadow,)}.transition{transition-property:color,background-color,border-color,outline-color,text-decoration-color,fill,stroke,--tw-gradient-from,--tw-gradient-via,--tw-gradient-to,opacity,box-shadow,transform,translate,scale,rotate,filter,-webkit-backdrop-filter,backdrop-filter,display,content-visibility,overlay,pointer-events;transition-timing-function:var(--tw-ease,var(--default-transition-timing-function));transition-duration:var(--tw-duration,var(--default-transition-duration))}}:root{--ink:#000;--canvas:#fff;--surface:#f7f7f7;--muted:#707070;--border:#ddd;--ui-font:system-ui, -apple-system, BlinkMacSystemFont, "Apple SD Gothic Neo", "Noto Sans KR", sans-serif;--display-font:"Iowan Old Style", "AppleMyungjo", "Batang", serif}*{box-sizing:border-box}html{scroll-behavior:smooth}body{background:var(--canvas);color:var(--ink);font-family:var(--ui-font);margin:0}a{color:inherit}a:focus-visible,object:focus-visible{outline:2px solid var(--ink);outline-offset:4px}.site-header{border-bottom:1px solid var(--border);justify-content:space-between;align-items:center;gap:24px;min-height:80px;padding:0 32px;display:flex}.wordmark{letter-spacing:-.04em;border:1px solid #0000;border-radius:20px;align-items:center;min-height:44px;padding:0 12px;font-size:22px;font-weight:800;text-decoration:none;transition:background-color .16s,border-color .16s;display:inline-flex}.wordmark:hover{border-color:var(--border);background:var(--surface)}.wordmark:active{border-color:var(--ink);background:var(--surface)}.site-header p,.author,.book-description{color:var(--muted)}.site-header p{margin:0;font-size:16px}.principles-summary{border-bottom:1px solid var(--border);background:var(--surface);padding:0 32px}.principles-heading{cursor:pointer;justify-content:space-between;align-items:center;gap:24px;min-height:92px;list-style:none;display:flex}.principles-heading::-webkit-details-marker{display:none}.principles-summary-copy{gap:6px;display:grid}.principles-summary-copy .eyebrow{margin:0}.principles-title{font:700 26px/1.1 var(--display-font);letter-spacing:-.075em}.principles-summary-copy>span:last-child{color:var(--muted);font-size:14px;line-height:1.4}.principles-toggle{border:1px solid var(--ink);white-space:nowrap;border-radius:20px;align-items:center;min-height:44px;padding:0 16px;font-size:14px;font-weight:700;display:inline-flex}.principles-heading:hover .principles-toggle,.principles-summary[open] .principles-toggle{background:var(--ink);color:var(--canvas)}.principles-grid{grid-template-columns:repeat(4,minmax(0,1fr));gap:16px;max-width:1240px;margin:32px auto 0;padding:0;list-style:none;display:grid}.principles-grid li{border:1px solid var(--border);background:var(--canvas);border-radius:20px;min-height:176px;padding:20px}.principles-grid li>span{font:700 16px/1 var(--display-font);margin-bottom:20px;display:block}.principles-grid h2{font:700 19px/1.25 var(--display-font);letter-spacing:-.05em;margin:0 0 8px}.principles-grid p{color:var(--muted);margin:0;font-size:14px;line-height:1.5}.principles-summary[open]{padding-bottom:32px}.eyebrow{letter-spacing:.1em;margin:0 0 24px;font-size:14px;font-weight:700}.catalog{grid-template-columns:212px minmax(0,1fr);min-height:calc(100vh - 80px);display:grid}.category-rail{background:var(--surface);border-right:1px solid var(--border);padding:48px 24px}.category-button{width:100%;min-height:44px;color:var(--ink);font:700 14px/1.35 var(--ui-font);text-align:left;cursor:pointer;background:0 0;border:1px solid #0000;border-radius:20px;justify-content:space-between;align-items:center;padding:0 12px;display:flex}.category-button:hover,.category-button[aria-pressed=true]{border-color:var(--ink);background:var(--canvas)}.category-button:active{background:var(--surface)}.category-button:focus-visible{outline:2px solid var(--ink);outline-offset:3px}.catalog-content{min-width:0;padding:48px 32px}.catalog-head{justify-content:space-between;align-items:end;gap:24px;margin-bottom:32px;display:flex}.catalog-head .eyebrow{margin-bottom:0}.catalog-head h2{font:700 38px/1 var(--display-font);letter-spacing:-.075em;margin:12px 0 0}.catalog-head h2 span{font:700 14px/1.35 var(--ui-font);letter-spacing:0}.catalog-controls{align-items:center;gap:12px;width:min(100%,520px);display:flex}.catalog-search{flex:1;min-width:0}.catalog-search input{border:1px solid var(--ink);background:var(--canvas);width:100%;min-height:44px;color:var(--ink);font:400 16px/1.5 var(--ui-font);border-radius:20px;padding:0 16px}.catalog-search input:focus-visible{outline:2px solid var(--ink);outline-offset:3px}.catalog-sort select{border:1px solid var(--ink);background:var(--canvas);min-height:44px;color:var(--ink);font:700 14px/1.35 var(--ui-font);border-radius:20px;padding:0 32px 0 16px}.catalog-sort select:focus-visible{outline:2px solid var(--ink);outline-offset:3px}.sr-only{clip:rect(0, 0, 0, 0);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}.book-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;display:grid}.book-card{border:1px solid var(--border);background:var(--canvas);border-radius:20px;flex-direction:column;min-height:356px;padding:24px;transition:border-color .16s,background-color .16s;display:flex}.book-card:hover{border-color:var(--ink);background:var(--surface)}.book-topline{color:var(--muted);letter-spacing:.06em;text-transform:uppercase;justify-content:space-between;gap:12px;font-size:14px;font-weight:700;display:flex}.book-cover{aspect-ratio:2/3;border:1px solid var(--border);background:var(--surface);border-radius:20px;width:min(100%,180px);height:auto;margin:16px auto 0;display:block;overflow:hidden}.book-cover>img{object-fit:cover;width:100%;height:100%}.cover-fallback{background:var(--ink);width:100%;height:100%;color:var(--canvas);flex-direction:column;justify-content:space-between;padding:12px;display:flex}.cover-fallback small{font-size:14px;font-weight:700}.cover-fallback strong{font-family:var(--display-font);letter-spacing:-.06em;font-size:18px;line-height:1.1}.cover-fallback em{color:var(--canvas);font-size:14px;font-style:normal}.book-card h3{font:700 21px/1.2 var(--display-font);letter-spacing:-.06em;margin:16px 0 4px}.author{margin:0;font-size:16px}.book-attributes{gap:8px;margin-top:16px;display:grid}.book-meter{color:var(--muted);grid-template-columns:48px minmax(72px,1fr) 32px;align-items:center;gap:8px;font-size:14px;font-weight:700;display:grid}.book-meter-label{color:var(--ink)}.book-meter-track{grid-template-columns:repeat(5,1fr);gap:5px;display:grid}.book-meter-segment{border:1px solid var(--border);background:var(--canvas);border-radius:2px;height:18px}.book-meter-segment.is-active{border-color:var(--ink);background:var(--ink)}.book-meter-value{color:var(--ink);text-align:right}.book-description{border-top:1px solid var(--border);margin:16px 0 0;padding-top:16px;font-size:16px;line-height:1.5}.empty-state{background:var(--surface);color:var(--muted);padding:48px;font-size:16px}@media (max-width:960px){.site-header{min-height:64px;padding-inline:24px}.site-header p{display:none}.catalog{display:block}.category-rail{border-right:0;border-bottom:1px solid var(--border);padding:24px}.category-button{width:auto;margin:2px;display:inline-flex}.catalog-content{padding:32px 24px}.principles-summary{padding-inline:24px}.principles-grid,.book-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}@media (max-width:640px){.principles-summary{padding-inline:20px}.principles-heading{gap:12px;min-height:84px}.principles-title{font-size:21px}.principles-summary-copy>span:last-child{font-size:13px}.principles-toggle{padding-inline:12px;font-size:13px}.principles-grid{grid-template-columns:1fr;margin-top:24px}.category-rail{white-space:nowrap;overflow-x:auto}.catalog-head{display:block}.catalog-controls{width:100%;margin-top:24px}.book-grid{grid-template-columns:1fr}}@media (prefers-reduced-motion:reduce){*,:before,:after{scroll-behavior:auto!important;transition-duration:.01ms!important}}@property --tw-rotate-x{syntax:"*";inherits:false}@property --tw-rotate-y{syntax:"*";inherits:false}@property --tw-rotate-z{syntax:"*";inherits:false}@property --tw-skew-x{syntax:"*";inherits:false}@property --tw-skew-y{syntax:"*";inherits:false}@property --tw-border-style{syntax:"*";inherits:false;initial-value:solid}@property --tw-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-shadow-color{syntax:"*";inherits:false}@property --tw-shadow-alpha{syntax:"<percentage>";inherits:false;initial-value:100%}@property --tw-inset-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-inset-shadow-color{syntax:"*";inherits:false}@property --tw-inset-shadow-alpha{syntax:"<percentage>";inherits:false;initial-value:100%}@property --tw-ring-color{syntax:"*";inherits:false}@property --tw-ring-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-inset-ring-color{syntax:"*";inherits:false}@property --tw-inset-ring-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-ring-inset{syntax:"*";inherits:false}@property --tw-ring-offset-width{syntax:"<length>";inherits:false;initial-value:0}@property --tw-ring-offset-color{syntax:"*";inherits:false;initial-value:#fff}@property --tw-ring-offset-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-outline-style{syntax:"*";inherits:false;initial-value:solid}@property --tw-blur{syntax:"*";inherits:false}@property --tw-brightness{syntax:"*";inherits:false}@property --tw-contrast{syntax:"*";inherits:false}@property --tw-grayscale{syntax:"*";inherits:false}@property --tw-hue-rotate{syntax:"*";inherits:false}@property --tw-invert{syntax:"*";inherits:false}@property --tw-opacity{syntax:"*";inherits:false}@property --tw-saturate{syntax:"*";inherits:false}@property --tw-sepia{syntax:"*";inherits:false}@property --tw-drop-shadow{syntax:"*";inherits:false}@property --tw-drop-shadow-color{syntax:"*";inherits:false}@property --tw-drop-shadow-alpha{syntax:"<percentage>";inherits:false;initial-value:100%}@property --tw-drop-shadow-size{syntax:"*";inherits:false}