.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}[data-theme=dark] .lang-btn-trigger{background:#0f172ad9;border-color:#94a3b84d;color:#e2e8f0;box-shadow:0 4px 12px #02061780}[data-theme=dark] .lang-btn-trigger:hover{background:#0f172af2;box-shadow:0 6px 16px #02061799}.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}[data-theme=dark] .lang-dropdown{background:#0f172a;border-color:#94a3b833;box-shadow:0 12px 28px #02061799}.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}[data-theme=dark] .lang-dropdown-item{color:#e2e8f0}[data-theme=dark] .lang-dropdown-item:hover{background:#94a3b82e}[data-theme=dark] .lang-dropdown-item.active{background:#38bdf82e;color:#7dd3fc}.lang-flag{font-size:1.1em}@keyframes fadeIn{0%{opacity:0;transform:translateY(-5px)}to{opacity:1;transform:translateY(0)}}.desktop-topnav{position:fixed;top:0;left:0;right:0;z-index:100;height:56px;background:var(--bg-primary);border-bottom:1px solid var(--border)}.desktop-topnav__inner{max-width:1200px;margin:0 auto;height:100%;display:flex;align-items:center;padding:0 2rem;gap:1.5rem}.desktop-topnav--full .desktop-topnav__inner{max-width:100%}.desktop-topnav__brand{display:flex;align-items:center;gap:.5rem;background:none;border:none;padding:0;cursor:pointer}.desktop-topnav__logo{width:30px;height:30px;border-radius:7px}.desktop-topnav__brand-text{font-size:1.05rem;font-weight:700;letter-spacing:-.02em;color:var(--text-main)}.desktop-topnav__links{display:flex;gap:.25rem;margin-right:auto}.desktop-topnav__link{background:none;border:none;padding:.4rem .75rem;font-size:.9rem;font-weight:500;color:var(--text-muted);cursor:pointer;border-radius:var(--radius-md);transition:color .15s ease,background .15s ease;display:inline-flex;align-items:center;gap:.35rem}.desktop-topnav__link:hover{color:var(--text-main)}.desktop-topnav__link.is-active{color:var(--text-main);font-weight:600;background:var(--bg-secondary)}.desktop-topnav__actions{display:flex;align-items:center;gap:.5rem}.desktop-topnav__gpt-pill{display:inline-flex;align-items:center;gap:.35rem;padding:.3rem .7rem;border-radius:999px;background:var(--bg-secondary);color:var(--text-muted);font-size:.8rem;font-weight:500;text-decoration:none;white-space:nowrap;transition:opacity .15s ease}.desktop-topnav__gpt-pill:hover{opacity:.75}.desktop-topnav__gpt-icon{width:16px;height:16px}.desktop-topnav__theme-toggle{display:inline-flex;align-items:center;justify-content:center;width:32px;height:32px;border:none;border-radius:999px;background:var(--bg-secondary);color:var(--text-muted);cursor:pointer;transition:color .15s ease,background .15s ease}.desktop-topnav__theme-toggle:hover{color:var(--text-main)}.desktop-topnav__login{font-weight:600;color:var(--primary)}@media(max-width:767px){.desktop-topnav{display:none}}:root{--primary: #0ea5e9;--primary-hover: #0284c7;--primary-light: #38bdf8;--accent: #7dd3fc;--bg-main: #ffffff;--bg-primary: #ffffff;--bg-secondary: #f1f5f9;--bg-glass: rgba(255, 255, 255, .7);--bg-glass-hover: rgba(255, 255, 255, .85);--bg-card: #ffffff;--trip-bg-0: linear-gradient(180deg, #ffffff 0%, #f8fafc 100%);--trip-bg-1: linear-gradient(180deg, #ffffff 0%, #f8fafc 100%);--trip-bg-2: linear-gradient(180deg, #ffffff 0%, #f8fafc 100%);--trip-bg-3: linear-gradient(180deg, #ffffff 0%, #f8fafc 100%);--trip-bg-4: linear-gradient(180deg, #ffffff 0%, #f8fafc 100%);--trip-bg-5: linear-gradient(180deg, #ffffff 0%, #f8fafc 100%);--bg-input: rgba(255, 255, 255, .8);--text-main: #1e293b;--text-primary: #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;--base-font-size: 16px;color-scheme:light;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}[data-theme=light]{color-scheme:light!important}[data-theme=dark]{--primary: #38bdf8;--primary-hover: #7dd3fc;--primary-light: #0ea5e9;--accent: #bae6fd;--bg-main: #111827;--bg-primary: #1f2937;--bg-secondary: #273447;--bg-glass: rgba(17, 24, 39, .74);--bg-glass-hover: rgba(30, 41, 59, .9);--bg-input: rgba(31, 41, 55, .82);--bg-card: #1f2937;--trip-bg-0: linear-gradient(135deg, rgba(56, 189, 248, .1) 0%, rgba(30, 41, 59, 0) 150%);--trip-bg-1: linear-gradient(135deg, rgba(14, 165, 233, .1) 0%, rgba(30, 41, 59, 0) 150%);--trip-bg-2: linear-gradient(135deg, rgba(125, 211, 252, .1) 0%, rgba(30, 41, 59, 0) 150%);--trip-bg-3: linear-gradient(135deg, rgba(186, 230, 253, .1) 0%, rgba(30, 41, 59, 0) 150%);--trip-bg-4: linear-gradient(135deg, rgba(56, 189, 248, .05) 0%, rgba(30, 41, 59, 0) 150%);--trip-bg-5: linear-gradient(135deg, rgba(14, 165, 233, .05) 0%, rgba(30, 41, 59, 0) 150%);--text-main: #f1f5f9;--text-primary: #f1f5f9;--text-muted: #cbd5e1;--text-light: #94a3b8;--border: rgba(100, 116, 139, .45);--shadow-sm: 0 1px 2px 0 rgb(0 0 0 / .3);--shadow-md: 0 4px 6px -1px rgb(0 0 0 / .5), 0 2px 4px -2px rgb(0 0 0 / .3);--shadow-lg: 0 10px 15px -3px rgb(0 0 0 / .5), 0 4px 6px -4px rgb(0 0 0 / .3);--shadow-xl: 0 20px 25px -5px rgb(0 0 0 / .5), 0 8px 10px -6px rgb(0 0 0 / .3);color-scheme:dark!important}html[data-theme=light],body[data-theme=light]{color-scheme:light!important}html[data-theme=dark],body[data-theme=dark]{color-scheme:dark!important}html{font-size:var(--base-font-size)}body{margin:0;padding:0;min-width:320px;min-height:100vh;color:var(--text-main);background-color:var(--bg-main)}[data-theme=light] body{background-color:#fff}[data-theme=dark] body{background-color:#111827}*,*: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-primary);border:1px solid var(--border);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm)}.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:var(--primary);color:#fff}.btn-primary:hover{background:var(--primary-hover)}.btn-ghost{background:transparent;color:var(--text-muted)}.btn-ghost:hover{background:#0000000d;color:var(--text-main)}[data-theme=dark] .btn-ghost:hover{background:#94a3b829}.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:var(--bg-input);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:var(--bg-primary)}.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)}@media(max-width:768px){.mobile-only{display:flex!important}}@media(min-width:769px){.mobile-only{display:none!important}}.mobile-topbar{position:fixed;top:0;left:0;right:0;z-index:50;padding-top:env(safe-area-inset-top);background:#fff;box-shadow:0 .5px #00000014;transition:background .3s ease,box-shadow .3s ease,backdrop-filter .3s ease}[data-theme=dark] .mobile-topbar{background:#1f2937;box-shadow:0 .5px #ffffff0f}.mobile-topbar--scrolled{background:#fff0!important;box-shadow:none!important;backdrop-filter:none!important;-webkit-backdrop-filter:none!important}[data-theme=dark] .mobile-topbar--scrolled{background:#1f293700!important}.mobile-topbar__inner{position:relative;height:44px;display:flex;align-items:center;justify-content:center;padding:0}.mobile-topbar__left{position:absolute;left:4px;display:flex;align-items:center;gap:2px}.mobile-topbar__center{display:flex;align-items:center;gap:7px;max-width:calc(100% - 110px);pointer-events:none}.mobile-topbar__right{position:absolute;right:4px;display:flex;align-items:center;gap:2px}.mobile-topbar__logo{width:26px;height:26px;border-radius:7px;flex-shrink:0;display:block}.mobile-topbar__title{font-size:1.0625rem;font-weight:700;letter-spacing:-.02em;color:var(--text-main);white-space:nowrap}.mobile-topbar__brand{display:flex;align-items:center;gap:8px}.mobile-topbar__actions{display:flex;align-items:center;gap:2px}.mobile-topbar__action{display:inline-flex;align-items:center;justify-content:center;width:40px;height:40px;border-radius:50%;border:none;background:transparent;color:var(--text-main);cursor:pointer;transition:background .15s ease;text-decoration:none;-webkit-tap-highlight-color:transparent;flex-shrink:0}.mobile-topbar__action:active{background:#0000000f}[data-theme=dark] .mobile-topbar__action:active{background:#ffffff14}.mobile-topbar__cta{display:inline-flex;align-items:center;gap:5px;padding:6px 14px;border-radius:999px;border:none;background:var(--primary);color:#fff;font-size:.8125rem;font-weight:700;letter-spacing:-.01em;cursor:pointer;text-decoration:none;white-space:nowrap;-webkit-tap-highlight-color:transparent;transition:opacity .15s ease}.mobile-topbar__cta:active{opacity:.8}.mobile-topbar--sticky{position:sticky!important}