:root{--text-primary: #182532;--text-muted: #5a6e80;font-family:Pretendard,SUIT,Noto Sans KR,Segoe UI,sans-serif;line-height:1.5;font-weight:400;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}*{box-sizing:border-box}body{margin:0;min-width:320px;background:#edf1f5}#root{min-height:100vh}button{font:inherit;cursor:pointer}.app-shell{display:grid;grid-template-columns:280px 1fr;min-height:100vh;color:var(--text-primary)}.sidebar{background:linear-gradient(180deg,#1f2933,#11181f);border-right:1px solid rgba(255,255,255,.08);padding:1rem}.new-chat-button{width:100%;border:1px solid rgba(255,255,255,.24);color:#f3f6f8;background:#ffffff0f;border-radius:12px;padding:.72rem .9rem;text-align:left;font-weight:600}.new-chat-button:hover{background:#ffffff1f}.history-block{margin-top:1.2rem}.history-title{color:#8ea5b8;font-size:.82rem;text-transform:uppercase;letter-spacing:.08em}.empty-history{color:#c2d0da;font-size:.9rem}.history-list{list-style:none;margin:.5rem 0 0;padding:0;display:grid;gap:.45rem}.history-item{width:100%;border:1px solid transparent;border-radius:10px;text-align:left;color:#e4ecf2;background:transparent;padding:.62rem .65rem;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.history-item:hover{background:#ffffff14}.history-item.is-active{border-color:#ffffff47;background:#ffffff1f}.main-panel{background:radial-gradient(circle at top right,#f4efe6,#eef3f7 52%,#e9eef4);padding:2rem}.home-view{max-width:1120px;margin:0 auto}.home-header h1{margin:0;font-size:2rem}.home-header p{margin:.6rem 0 0;color:var(--text-muted)}.character-grid{margin-top:1.4rem;display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:1rem}.character-card{background:#fffdfb;border:1px solid #e5e9ef;border-radius:16px;text-align:left;padding:1rem;min-height:210px;box-shadow:0 10px 26px #1e324614;transition:transform .2s ease,box-shadow .2s ease}.character-card:hover{transform:translateY(-2px);box-shadow:0 14px 30px #1e32461f}.character-chip{display:inline-block;border-radius:999px;padding:.2rem .62rem;font-size:.78rem;color:#fff;font-weight:600}.character-card h3{margin:.8rem 0 .25rem;font-size:1.3rem}.character-role{margin:0;color:var(--text-muted);font-weight:600;font-size:.92rem}.character-intro{margin-top:.9rem;color:#364a5b;line-height:1.5}.chat-view{max-width:980px;margin:0 auto;height:calc(100vh - 4rem);display:grid;grid-template-rows:auto 1fr auto;background:#f8fafc;border:1px solid #dde5ee;border-radius:18px;overflow:hidden}.chat-header{background:#fff;border-bottom:1px solid #e5ebf2;padding:1rem 1.2rem;display:flex;align-items:center;justify-content:space-between;gap:1rem}.chat-label{margin:0;color:var(--text-muted);font-size:.82rem;text-transform:uppercase;letter-spacing:.06em}.chat-header h2{margin:.2rem 0 0}.chat-badge{background:#dce9f8;color:#274f7d;border-radius:999px;font-size:.82rem;font-weight:700;padding:.34rem .68rem}.messages{overflow-y:auto;padding:1rem 1.1rem;display:grid;gap:.75rem}.message-row{display:flex}.message-row.ai{justify-content:flex-start}.message-row.user{justify-content:flex-end}.message-bubble{margin:0;max-width:78%;padding:.7rem .88rem;border-radius:12px;line-height:1.45}.message-row.ai .message-bubble{background:#fff;border:1px solid #dfe7ef}.message-row.user .message-bubble{background:#2f526f;color:#eef8ff}.composer{border-top:1px solid #e5ebf2;padding:.85rem;display:grid;grid-template-columns:1fr auto;gap:.65rem;background:#fff}.composer input{width:100%;border-radius:11px;border:1px solid #ccdae6;padding:.72rem .78rem;font:inherit;outline:none;background:#f9fcff}.composer input:focus{border-color:#5a8bb6}.composer button{border:0;border-radius:11px;padding:0 1rem;color:#f8fbfe;background:#2b5879;font-weight:700}.composer button:hover{background:#214965}@media(max-width:920px){.app-shell{grid-template-columns:1fr}.sidebar{border-right:0;border-bottom:1px solid rgba(255,255,255,.08)}.main-panel{padding:1rem}.chat-view{height:calc(100vh - 15rem)}}