:root{--primary:#3b82f6;--primary-hover:#2563eb;--secondary:#8b5cf6;--accent:gold;--success:#34d399;--danger:#ef4444;--bg-main:#f0f9ff;--surface:#fff;--text-main:#1e293b;--text-muted:#64748b;--radius-lg:24px;--radius-md:16px;--shadow:0 10px 25px -5px #0000001a, 0 8px 10px -6px #0000001a;--font-main:"Outfit", sans-serif}*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}body{font-family:var(--font-main);background-color:var(--bg-main);color:var(--text-main);-webkit-user-select:none;user-select:none;margin:0;overflow-x:hidden}#root{flex-direction:column;min-height:100vh;display:flex}button{cursor:pointer;border:none;justify-content:center;align-items:center;gap:8px;font-family:inherit;transition:all .2s cubic-bezier(.4,0,.2,1);display:flex}button:active{transform:scale(.95)}.glass-card{-webkit-backdrop-filter:blur(12px);border-radius:var(--radius-lg);box-shadow:var(--shadow);background:#fffc;border:1px solid #ffffff4d}.premium-btn{background:var(--primary);color:#fff;border-radius:var(--radius-md);padding:16px 32px;font-size:1.1rem;font-weight:600;box-shadow:0 4px 14px #3b82f663}.premium-btn:hover{background:var(--primary-hover);box-shadow:0 6px 20px #3b82f63b}.secondary-btn{background:var(--surface);color:var(--text-main);border-radius:var(--radius-md);border:1px solid #e2e8f0;padding:12px 24px;font-weight:500}.nav-container{z-index:1000;justify-content:space-around;align-items:center;width:calc(100% - 48px);max-width:600px;height:72px;display:flex;position:fixed;bottom:24px;left:50%;transform:translate(-50%)}.nav-item{color:var(--text-muted);flex-direction:column;align-items:center;gap:4px;font-size:.75rem;font-weight:500;text-decoration:none;display:flex}.nav-item.active{color:var(--primary)}.container{width:100%;max-width:800px;margin:0 auto;padding:24px}h1{background:linear-gradient(135deg, var(--primary), var(--secondary));-webkit-text-fill-color:transparent;-webkit-background-clip:text;margin-bottom:8px;font-size:2rem;font-weight:800}.word-card{justify-content:space-between;align-items:center;margin-bottom:16px;padding:24px;display:flex}.word-main{font-size:1.5rem;font-weight:700}.meaning-sub{color:var(--text-muted);font-size:1rem}@keyframes bounce{0%,to{transform:translateY(0)}50%{transform:translateY(-5px)}}.animate-bounce{animation:2s infinite bounce}.portal-shell{background-image:url(/mountain_bg.png);background-position:50%;background-size:cover;min-height:100vh;padding:32px 20px;position:relative;overflow:hidden}.portal-backdrop{-webkit-backdrop-filter:blur(10px);background:linear-gradient(135deg,#0f172ab8,#1e40af57),#0f172a5c;position:absolute;inset:0}.portal-panel{width:min(960px,100%);margin:0 auto;padding:28px 0;position:relative}.portal-header{color:#fff;justify-content:space-between;align-items:start;gap:20px;margin-bottom:28px;display:flex}.portal-kicker{color:#dbeafe;background:#ffffff1f;border:1px solid #ffffff2e;border-radius:999px;align-items:center;gap:8px;min-height:32px;padding:0 12px;font-size:.85rem;font-weight:800;display:inline-flex}.portal-header h1{color:#fff;-webkit-text-fill-color:white;letter-spacing:0;background:0 0;margin:14px 0 8px;font-size:3.4rem;line-height:1.05}.portal-header p{color:#cbd5e1;max-width:560px;margin:0;font-size:1.05rem;line-height:1.6}.portal-logout{color:#e2e8f0;background:#0f172a6b;border:1px solid #ffffff2e;border-radius:12px;flex:none;min-height:44px;padding:0 14px;font-size:.95rem;font-weight:800}.system-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;display:grid}.system-card{min-height:190px;color:var(--text-main);background:#ffffffe6;border:1px solid #ffffff42;border-radius:20px;grid-template-columns:68px minmax(0,1fr);gap:16px;padding:22px;text-decoration:none;display:grid;position:relative;overflow:hidden;box-shadow:0 22px 45px #0f172a38}.system-card:before{content:"";background:var(--system-accent);height:5px;position:absolute;inset:0 0 auto}.system-card:hover{transform:translateY(-4px);box-shadow:0 28px 58px #0f172a47}.system-card.blue{--system-accent:linear-gradient(90deg, #3b82f6, #8b5cf6)}.system-card.green{--system-accent:linear-gradient(90deg, #10b981, #f59e0b)}.system-icon{color:#fff;border-radius:18px;place-items:center;width:64px;height:64px;display:grid;box-shadow:0 14px 24px #0f172a29}.system-icon.blue{background:linear-gradient(135deg,#3b82f6,#8b5cf6)}.system-icon.green{background:linear-gradient(135deg,#10b981,#f59e0b)}.system-copy{align-content:start;min-width:0;display:grid}.system-copy>span{color:var(--primary);font-size:.82rem;font-weight:900}.system-card.green .system-copy>span{color:#059669}.system-copy strong{color:#0f172a;margin-top:8px;font-size:1.55rem;line-height:1.18}.system-copy small{color:var(--text-muted);margin-top:9px;font-size:.96rem;line-height:1.55}.system-action{color:#0f172a;background:#f1f5f9;border-radius:999px;grid-column:1/-1;align-self:end;align-items:center;gap:8px;width:max-content;max-width:100%;padding:10px 14px;font-size:.92rem;font-weight:900;display:inline-flex}@media (width<=760px){.portal-shell{padding:22px 14px}.portal-panel{padding:16px 0}.portal-header{display:grid}.portal-logout{width:max-content}.portal-header h1{font-size:2.25rem}.system-grid{grid-template-columns:1fr}.system-card{border-radius:18px;grid-template-columns:58px minmax(0,1fr);gap:14px;min-height:168px;padding:18px}.system-icon{border-radius:16px;width:56px;height:56px}.system-copy strong{font-size:1.35rem}}