:root{--link-color:#173819;--text:#000;--muted:#4b4b4b;--line:#00000029;--success:#173819;--surface:#f8f8f4;--space-xs:.35rem;--space-s:.5rem;--space-m:.75rem;--space-l:1rem;--space-xl:1.25rem;--radius:0}*{box-sizing:border-box;margin:0;padding:0}body{min-height:100vh;padding:var(--space-xl);color:var(--text);background:#fff;font-family:Nanum Myeongjo,serif;font-size:1rem;line-height:1.6}.page-shell{min-height:calc(100vh - 2*var(--space-xl))}.content{max-width:560px;margin:0 auto}.link-button,.submit-button{color:var(--link-color);text-decoration:none}.link-button,.submit-button,.guess-input{font:inherit}.link-button,.submit-button{padding:var(--space-s)var(--space-m);border:1px solid var(--line);cursor:pointer;background:#fff}.link-button:disabled,.submit-button:disabled,.guess-input:disabled{opacity:.5;cursor:default}.intro,.detail-panel{margin-bottom:var(--space-xl)}.mode-line,.section-label,.source-note,.part-of-speech{color:var(--muted);font-size:.95rem}.intro h1{font-size:1.6rem;font-weight:700}.top-bar{justify-content:space-between;align-items:flex-start;gap:var(--space-l);margin-bottom:var(--space-xs);display:flex}.action-row{gap:var(--space-m);flex-wrap:wrap;display:flex}.section-block{margin-bottom:var(--space-xl);padding:var(--space-l);border:1px solid var(--line);background:var(--surface)}.clue-block{padding:var(--space-l)}.clue-strip{gap:var(--space-s);width:100%;display:flex}.clue-tile{aspect-ratio:1;border:1px solid var(--line);background:#fff;flex:1;justify-content:center;align-items:center;min-width:0;font-size:clamp(1.2rem,4vw,1.7rem);font-weight:700;display:flex}.input-row{gap:var(--space-m);margin-top:var(--space-s);display:flex}.guess-input{min-width:0;padding:var(--space-s)var(--space-m);border:1px solid var(--line);border-radius:var(--radius);text-transform:lowercase;background:#fff;flex:1}.message{min-height:1.6rem;margin-top:var(--space-m);color:var(--muted)}.message-win{color:var(--success)}.share-row{margin-top:var(--space-m)}.share-button,.hint-button{font-size:.95rem}.btn-with-icon,.summary-with-icon{align-items:center;gap:var(--space-s);display:inline-flex}.btn-with-icon svg,.summary-with-icon svg{flex-shrink:0}.archive-form{gap:var(--space-m);display:grid}.definition-learn{gap:var(--space-s);margin-top:var(--space-m);padding-top:var(--space-m);border-top:1px solid var(--line);display:grid}.learning-inline{gap:var(--space-xs);display:grid}.learning-label{min-width:4rem;color:var(--muted);display:inline-block}.stats-grid{gap:var(--space-s);display:grid}.stat-item{justify-content:space-between;gap:var(--space-l);display:flex}.stat-label{color:var(--muted);font-size:.95rem}.stat-value{font-weight:700}.archive-row{gap:var(--space-m);display:flex}.archive-row .guess-input{flex:1}.archive-calendar{gap:var(--space-m);flex-direction:column;display:flex}.calendar-header{justify-content:space-between;align-items:center;display:flex}.calendar-nav{padding:0 var(--space-s);font:inherit;color:var(--link-color);cursor:pointer;background:0 0;border:none}.calendar-nav:disabled{opacity:.4;cursor:default}.calendar-month{font-weight:700}.calendar-grid{grid-template-columns:repeat(7,1fr);gap:2px;display:grid}.calendar-day{padding:var(--space-xs);font:inherit;color:var(--text);cursor:pointer;background:0 0;border:none;font-size:.9rem}.calendar-day:disabled{color:var(--muted);cursor:default}.guess-list{padding-left:var(--space-xl)}.detail-panel{border:1px solid var(--line);background:var(--surface)}.detail-panel summary{padding:var(--space-m)var(--space-l);cursor:pointer;list-style:none}.detail-panel summary::-webkit-details-marker{display:none}.detail-panel summary:after{content:"+";float:right}.detail-panel[open] summary:after{content:"−"}.detail-content{padding:0 var(--space-l)var(--space-l)}.history-list{list-style:none}.history-item{padding:var(--space-xs)0;border-bottom:1px solid var(--line)}.history-item:last-child{border-bottom:0}.history-card{background:0 0}.history-summary{justify-content:space-between;gap:var(--space-l);cursor:pointer;list-style:none;display:flex}.history-summary::-webkit-details-marker{display:none}.history-summary:after{content:"+";margin-left:auto}.history-card[open] .history-summary:after{content:"−"}.history-content{gap:var(--space-m);padding-top:var(--space-m);display:grid}.guess-history{padding-left:var(--space-xl)}.game-footer{margin-top:var(--space-xl);padding-top:var(--space-xl);justify-content:space-between;align-items:center;display:flex}.game-timer,.game-credit{color:var(--muted);font-size:.95rem}@media (min-width:641px){.game-credit{bottom:var(--space-xl);right:var(--space-xl);position:fixed}}.game-credit a{color:var(--link-color);text-decoration:none}@media (max-width:640px){body{padding:var(--space-xl)}.top-bar,.input-row,.archive-row,.history-summary{flex-direction:column}.clue-strip{gap:var(--space-xs)}.game-timer{top:var(--space-xl);right:var(--space-xl);position:fixed;bottom:auto;left:auto}.game-footer{justify-content:center}}