:root{--primary: #0EA5E9;--primary-hover: #0284C7;--primary-light: #38BDF8;--accent: #7DD3FC;--bg-main: #f8fafc;--bg-primary: #ffffff;--bg-secondary: #f1f5f9;--bg-glass: rgba(255, 255, 255, .7);--bg-glass-hover: rgba(255, 255, 255, .85);--text-main: #1e293b;--text-muted: #64748b;--text-light: #94a3b8;--border: rgba(226, 232, 240, .8);--shadow-sm: 0 1px 2px 0 rgb(0 0 0 / .05);--shadow-md: 0 4px 6px -1px rgb(0 0 0 / .1), 0 2px 4px -2px rgb(0 0 0 / .1);--shadow-lg: 0 10px 15px -3px rgb(0 0 0 / .1), 0 4px 6px -4px rgb(0 0 0 / .1);--shadow-xl: 0 20px 25px -5px rgb(0 0 0 / .1), 0 8px 10px -6px rgb(0 0 0 / .1);--radius-sm: .5rem;--radius-md: .75rem;--radius-lg: 1rem;--radius-xl: 1.5rem;font-family:Pretendard Variable,Pretendard,-apple-system,BlinkMacSystemFont,system-ui,Roboto,Helvetica Neue,Segoe UI,Apple SD Gothic Neo,Noto Sans KR,Malgun Gothic,"Apple Color Emoji","Segoe UI Emoji",Segoe UI Symbol,sans-serif;line-height:1.6;font-weight:400;color-scheme:light;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}body{margin:0;padding:0;min-width:320px;min-height:100vh;color:var(--text-main);background-color:var(--bg-main);background-image:radial-gradient(at 0% 0%,rgba(14,165,233,.15) 0px,transparent 50%),radial-gradient(at 100% 0%,rgba(56,189,248,.15) 0px,transparent 50%),radial-gradient(at 100% 100%,rgba(125,211,252,.15) 0px,transparent 50%),radial-gradient(at 0% 100%,rgba(2,132,199,.15) 0px,transparent 50%);background-attachment:fixed}*,*:before,*:after{box-sizing:border-box}h1,h2,h3,h4,h5,h6{margin:0;font-weight:700;letter-spacing:-.02em;color:var(--text-main)}button{font-family:inherit;cursor:pointer;border:none;background:none;transition:all .2s cubic-bezier(.4,0,.2,1)}.text-truncate{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.glass-panel{background:var(--bg-glass);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border:1px solid rgba(255,255,255,.5);border-radius:var(--radius-lg);box-shadow:var(--shadow-lg)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;padding:.6rem 1.2rem;border-radius:var(--radius-md);font-weight:600;font-size:.95rem;transition:all .2s ease}.btn:active{transform:scale(.98)}.btn-primary{background:linear-gradient(135deg,var(--primary),var(--primary-light));color:#fff;box-shadow:0 4px 6px -1px #0ea5e94d}.btn-primary:hover{box-shadow:0 8px 12px -1px #0ea5e966;transform:translateY(-1px)}.btn-ghost{background:transparent;color:var(--text-muted)}.btn-ghost:hover{background:#0000000d;color:var(--text-main)}.btn-danger{background:#fee2e2;color:#ef4444}.btn-danger:hover{background:#fecaca}.input{width:100%;padding:.75rem 1rem;border-radius:var(--radius-md);border:1px solid var(--border);background:#fffc;font-size:.95rem;color:var(--text-main);transition:all .2s ease;box-sizing:border-box}.input:focus{outline:none;border-color:var(--primary-light);box-shadow:0 0 0 3px #0ea5e91a;background:#fff}.input::placeholder{color:var(--text-light)}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:#94a3b880;border-radius:4px}::-webkit-scrollbar-thumb:hover{background:#94a3b8cc}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.animate-fade-in{animation:fadeIn .4s ease-out forwards}.spin{animation:spin 1s linear infinite}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.sidebar-container{width:400px;height:100%;z-index:50;position:relative;box-shadow:var(--shadow-xl);display:flex;flex-direction:column;background:var(--bg-glass);transition:transform .3s cubic-bezier(.4,0,.2,1)}.desktop-controls{display:block}.resize-handle:hover{background:var(--primary)!important;opacity:.5}.desktop-toggle-btn:hover{background:var(--bg-glass-hover);color:var(--primary)}.language-switcher{position:relative;display:inline-block}.lang-btn-trigger{display:flex;align-items:center;gap:8px;padding:8px 12px;background:#fffc;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);border:1px solid rgba(0,0,0,.1);border-radius:20px;cursor:pointer;font-size:.9rem;color:#333;transition:all .2s ease;box-shadow:0 2px 4px #0000000d}.lang-btn-trigger:hover{background:#fff;box-shadow:0 4px 6px #0000001a}.lang-dropdown{position:absolute;top:100%;right:0;margin-top:8px;background:#fff;border-radius:12px;box-shadow:0 4px 12px #00000026;padding:8px;min-width:150px;z-index:1000;border:1px solid rgba(0,0,0,.05);animation:fadeIn .2s ease}.lang-dropdown-item{display:flex;align-items:center;gap:10px;width:100%;padding:8px 12px;border:none;background:none;cursor:pointer;border-radius:8px;font-size:.9rem;color:#444;transition:background .2s;text-align:left}.lang-dropdown-item:hover{background:#f3f4f6}.lang-dropdown-item.active{background:#eff6ff;color:#2563eb;font-weight:500}.lang-flag{font-size:1.1em}@keyframes fadeIn{0%{opacity:0;transform:translateY(-5px)}to{opacity:1;transform:translateY(0)}}