:root{--bg-deep: #0f172a;--bg-subtle: #1e293b;--primary: #3b82f6;--primary-glow: rgba(59, 130, 246, .5);--accent: #06b6d4;--text-main: #f1f5f9;--text-dim: #94a3b8;--glass-bg: rgba(30, 41, 59, .7);--glass-border: rgba(255, 255, 255, .1);--danger: #ef4444;--success: #10b981}body{margin:0;background-color:var(--bg-deep);color:var(--text-main);font-family:Outfit,Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;overflow-x:hidden;background:radial-gradient(circle at 50% 0%,#1e1b4b 0%,var(--bg-deep) 70%);min-height:100vh}::-webkit-scrollbar{width:8px}::-webkit-scrollbar-track{background:var(--bg-deep)}::-webkit-scrollbar-thumb{background:var(--bg-subtle);border-radius:4px}::-webkit-scrollbar-thumb:hover{background:var(--primary)}.glass-panel{background:var(--glass-bg);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border:1px solid var(--glass-border);box-shadow:0 4px 24px -1px #0000004d;border-radius:16px;overflow:hidden;transition:transform .3s ease,box-shadow .3s ease}.btn-primary{background:linear-gradient(135deg,var(--primary) 0%,#2563eb 100%);color:#fff;border:none;padding:12px 24px;border-radius:8px;cursor:pointer;font-weight:600;letter-spacing:.5px;transition:all .2s ease;display:flex;align-items:center;justify-content:center;gap:8px;width:100%;font-size:1rem;box-shadow:0 4px 12px #2563eb4d}.btn-primary:hover:not(:disabled){transform:translateY(-1px);box-shadow:0 6px 16px #2563eb80;filter:brightness(1.1)}.btn-primary:disabled{opacity:.7;cursor:not-allowed;filter:grayscale(.8)}.input-group{position:relative;margin-bottom:16px}.input-icon{position:absolute;left:12px;top:50%;transform:translateY(-50%);color:var(--text-dim);pointer-events:none}.input-field{background:#0f172a99;border:1px solid var(--glass-border);color:var(--text-main);padding:12px 12px 12px 40px;border-radius:8px;width:100%;box-sizing:border-box;font-size:1rem;transition:all .3s ease}.input-field:focus{border-color:var(--primary);box-shadow:0 0 0 2px #3b82f633;outline:none}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.fade-in{animation:fadeIn .5s ease-out forwards}@keyframes float{0%{transform:translateY(0)}50%{transform:translateY(-10px)}to{transform:translateY(0)}}.float-anim{animation:float 6s ease-in-out infinite}.app-container{display:flex;flex-direction:column;min-height:100vh;position:relative}.navbar{display:flex;justify-content:space-between;align-items:center;padding:20px 40px;z-index:100}.logo-area{display:flex;align-items:center;gap:10px;font-weight:700;font-size:1.2rem;color:var(--text-main)}.main-content{flex:1;display:flex;align-items:center;justify-content:center;padding:20px}.chat-container{width:100%;max-width:800px;height:70vh;display:flex;flex-direction:column}.chat-messages{flex:1;overflow-y:auto;padding:20px;display:flex;flex-direction:column;gap:16px}.chat-bubble{padding:12px 16px;border-radius:12px;max-width:85%;line-height:1.5;font-size:.95rem}.chat-ai{background:#3b82f61a;border-left:3px solid var(--primary);border-top-left-radius:2px;align-self:flex-start}.chat-user{background:var(--primary);color:#fff;border-bottom-right-radius:2px;align-self:flex-end;box-shadow:0 2px 8px #3b82f64d}.chat-input-area{padding:20px;border-top:1px solid var(--glass-border);display:flex;gap:10px}.footer{padding:20px;text-align:center;font-size:.8rem;color:var(--text-dim)}.secret-link{color:var(--bg-subtle);text-decoration:none;transition:all .5s;cursor:pointer;padding:5px 10px;border-radius:4px}.secret-link:hover{color:var(--accent);background:#06b6d41a}@media (max-width: 600px){.navbar{padding:15px 20px}.glass-panel{width:100%;margin:10px}.footer{padding-bottom:30px}.chat-container{height:80vh}}.lang-dropdown-menu{position:absolute;right:0;top:100%;margin-top:12px;width:160px;background:#fff;border-radius:12px;box-shadow:0 10px 25px -5px #0000004d;padding:8px 0;z-index:200;display:flex!important;flex-direction:column!important;overflow:hidden;animation:slideDown .2s ease-out}@keyframes slideDown{0%{opacity:0;transform:translateY(-10px)}to{opacity:1;transform:translateY(0)}}.lang-dropdown-item{width:100%!important;padding:12px 20px!important;border:none!important;background:none!important;text-align:left!important;font-size:14px!important;font-weight:500!important;color:#475569!important;cursor:pointer!important;transition:all .2s!important;display:block!important}.lang-dropdown-item:hover{background:#f8fafc!important;color:#0f172a!important}.lang-dropdown-item.active{color:var(--primary)!important;background:#eff6ff!important}.lang-trigger{background:transparent;border:none;color:#ffffffb3;padding:8px;cursor:pointer;transition:color .2s;display:flex;align-items:center;justify-content:center;border-radius:50%}.lang-trigger:hover{color:#fff;background:#ffffff1a}