:root{--primary:#6460f6;--primary-hover:#524ee0;--primary-light:#6460f614;--primary-border:#6460f633;--secondary:#9674f8;--yellow:#f9e153;--yellow-hover:#fae66e;--pistachio:#e1f2b6;--pistachio-dark:#4b661d;--bg:#f7f7f5;--bg-sidebar:#fff;--surface:#fff;--surface-dim:#f2f1ee;--border:#e8e6e1;--border-hover:#d4d2cc;--text:#1a1a1a;--text-muted:#71717a;--text-h:#0f0f0f;--accent:#6460f6;--accent-bg:#6460f60f;--accent-border:#6460f62e;--shadow-xs:0 1px 2px #0000000a;--shadow-sm:0 2px 8px #0000000a;--shadow:0 4px 16px #0000000f;--shadow-card:0 8px 24px #0000000d;--sidebar-width:260px;--sidebar-collapsed:68px;--header-height:64px;--sans:"Plus Jakarta Sans", system-ui, -apple-system, sans-serif;--heading:"Bricolage Grotesque", system-ui, sans-serif;--mono:"Space Mono", monospace;font:15px/1.6 var(--sans);color:var(--text);background:var(--bg);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}*{box-sizing:border-box}body{background-color:var(--bg);color:var(--text);min-height:100vh;margin:0}#root{width:100%;min-height:100vh}h1,h2,h3,h4{font-family:var(--heading);color:var(--text-h);letter-spacing:-.02em;margin:0;font-weight:800}p{margin:0}code,.counter{font-family:var(--mono)}::-webkit-scrollbar{width:6px}::-webkit-scrollbar-track{background:0 0}::-webkit-scrollbar-thumb{background:var(--border);border-radius:3px}::-webkit-scrollbar-thumb:hover{background:var(--border-hover)}.app-layout{grid-template-columns:var(--sidebar-width) 1fr;min-height:100vh;display:grid}.sidebar{width:var(--sidebar-width);background:var(--bg-sidebar);border-right:1px solid var(--border);z-index:100;flex-direction:column;height:100vh;display:flex;position:fixed;top:0;left:0;overflow:hidden auto}.sidebar-logo{border-bottom:1px solid var(--border);padding:24px 20px 16px}.sidebar-logo img{width:auto;height:28px}.sidebar-nav{flex-direction:column;flex:1;gap:4px;padding:16px 12px;display:flex}.nav-item{color:var(--text-muted);cursor:pointer;text-align:left;width:100%;font-size:14px;font-weight:600;font-family:var(--sans);background:0 0;border:none;border-radius:12px;align-items:center;gap:12px;padding:11px 14px;transition:all .15s;display:flex}.nav-item:hover{background:var(--surface-dim);color:var(--text);box-shadow:none;transform:none}.nav-item.active{background:var(--primary-light);color:var(--primary);font-weight:700}.nav-item .nav-icon{text-align:center;flex-shrink:0;width:24px;font-size:18px}.nav-item .nav-label{white-space:nowrap;text-overflow:ellipsis;overflow:hidden}.sidebar-footer{border-top:1px solid var(--border);flex-direction:column;gap:12px;padding:16px;display:flex}.sidebar-streak{font-size:13px;font-weight:800;font-family:var(--heading);color:#92400e;background:linear-gradient(135deg,#fef9c3,#fde68a);border-radius:12px;align-items:center;gap:8px;padding:10px 14px;display:flex}.sidebar-user{background:var(--surface-dim);border-radius:12px;align-items:center;gap:10px;padding:8px 10px;display:flex}.sidebar-user-avatar{object-fit:contain;border-radius:50%;flex-shrink:0;width:32px;height:32px}.sidebar-user-info{flex:1;min-width:0}.sidebar-user-email{color:var(--text);white-space:nowrap;text-overflow:ellipsis;font-size:12px;font-weight:600;display:block;overflow:hidden}.sidebar-user-plan{color:var(--text-muted);font-size:11px;font-weight:500}.sidebar-logout{color:var(--text-muted);border:1px solid var(--border);cursor:pointer;width:100%;font-size:13px;font-weight:600;font-family:var(--sans);background:0 0;border-radius:12px;align-items:center;gap:8px;padding:10px 14px;transition:all .15s;display:flex}.sidebar-logout:hover{color:#b91c1c;box-shadow:none;background:#fef2f2;border-color:#fecaca;transform:none}.main-content{grid-column:2;width:100%;max-width:900px;padding:32px 40px 80px}.mobile-header,.bottom-nav{display:none}.panel{background:var(--surface);border:1px solid var(--border);box-shadow:var(--shadow-xs);border-radius:20px;padding:28px;animation:.25s fadeIn}@keyframes fadeIn{0%{opacity:0;transform:translateY(6px)}to{opacity:1;transform:translateY(0)}}.panel h2{margin:0 0 6px;font-size:24px}.meta{color:var(--text-muted);margin-bottom:16px;font-size:14px}.panel-header-with-mascot{border-bottom:1px solid var(--border);justify-content:space-between;align-items:center;gap:16px;margin-bottom:20px;padding-bottom:16px;display:flex}.mascot-reaction-box{background:var(--surface-dim);border:1px solid var(--border);border-radius:14px;flex-shrink:0;align-items:center;gap:10px;padding:8px 14px;display:flex}.mascot-reaction-img{object-fit:contain;width:36px;height:36px}.mascot-reaction-text{color:var(--text);font-size:13px;font-weight:700}.gate{background:var(--bg);justify-content:center;align-items:center;min-height:100vh;padding:24px;display:flex}.gate-card{background:var(--surface);border:1px solid var(--border);width:420px;max-width:100%;box-shadow:var(--shadow-card);text-align:center;border-radius:24px;padding:40px 36px}.gate-mascot{object-fit:contain;width:80px;height:80px;margin:0 auto 12px}.gate-card h1{margin:0 0 6px;font-size:28px}.gate-form{text-align:left;flex-direction:column;gap:14px;margin-top:20px;display:flex}.subtitle{color:var(--text-muted);margin-bottom:8px;font-size:14px}label{color:var(--text-muted);text-transform:uppercase;letter-spacing:.05em;font-size:12px;font-weight:700;font-family:var(--sans);margin-top:4px}input[type=text],input[type=email],input[type=password],textarea{font:inherit;border:1px solid var(--border);background:var(--surface);color:var(--text);border-radius:12px;padding:11px 14px;font-size:15px;transition:all .15s}input:focus-visible,textarea:focus-visible{border-color:var(--primary);box-shadow:0 0 0 3px var(--primary-light);outline:none}textarea{resize:vertical;min-height:100px}button{font:inherit;background:var(--primary);color:#fff;cursor:pointer;border:none;border-radius:12px;justify-content:center;align-items:center;gap:8px;padding:11px 20px;font-size:14px;font-weight:700;transition:all .15s;display:inline-flex}button:hover:not(:disabled){background:var(--primary-hover);transform:translateY(-1px);box-shadow:0 4px 12px #6460f633}button:active:not(:disabled){transform:translateY(0)}button:disabled{opacity:.5;cursor:not-allowed;transform:none}button.secondary{background:var(--surface);color:var(--text);border:1px solid var(--border)}button.secondary:hover:not(:disabled){background:var(--surface-dim);border-color:var(--border-hover);box-shadow:var(--shadow-xs)}button.link{color:var(--primary);background:0 0;border:none;margin:0;padding:0;font-size:14px;font-weight:700;text-decoration:underline}button.link:hover{box-shadow:none;color:var(--primary-hover);transform:none}.exercises{flex-direction:column;gap:16px;margin:0;padding:0;list-style:none;display:flex}.exercise{border:1px solid var(--border);background:var(--surface);border-radius:16px;padding:20px;transition:border-color .15s}.exercise:hover{border-color:var(--border-hover)}.exercise .prompt{color:var(--text-h);background:var(--surface-dim);border:1px solid var(--border);border-radius:12px;margin-bottom:14px;padding:14px 16px;font-size:17px;font-weight:700}.options{flex-wrap:wrap;gap:8px;display:flex}.option{background:var(--surface-dim);color:var(--text);border:1px solid var(--border);border-radius:999px;padding:9px 18px;font-size:14px;font-weight:600;transition:all .15s}.option:hover:not(:disabled){background:var(--surface);border-color:var(--primary);color:var(--primary);box-shadow:none;transform:none}.correct{color:#166534;background:#dcfce7;border-radius:999px;align-items:center;gap:6px;margin-top:12px;padding:8px 14px;font-size:13px;font-weight:700;display:inline-flex}.incorrect{color:#991b1b;background:#fee2e2;border-radius:999px;align-items:center;gap:6px;margin-top:12px;padding:8px 14px;font-size:13px;font-weight:700;display:inline-flex}.chat{flex-direction:column;gap:14px;display:flex}.chat-messages{background:var(--surface-dim);border:1px solid var(--border);border-radius:16px;flex-direction:column;gap:10px;min-height:200px;max-height:420px;padding:16px;display:flex;overflow-y:auto}.chat-message{border-radius:16px;max-width:80%;padding:12px 16px;font-size:14px;line-height:1.6}.chat-user{background:var(--primary);color:#fff;border-bottom-right-radius:4px;align-self:flex-end}.chat-assistant{background:var(--surface);color:var(--text);border:1px solid var(--border);border-bottom-left-radius:4px;align-self:flex-start}.chat-input{gap:8px;display:flex}.chat-input input{flex:1}.speaking-card{color:#fff;background:linear-gradient(135deg,#7c58f5,#6460f6);border-radius:20px;margin-bottom:20px;padding:24px;box-shadow:0 12px 28px #6460f633}.speaking-card .prompt{color:#fff;background:#ffffff1f;border:1px solid #fff3}.speaking-result,.onboarding-result{background:var(--surface-dim);border:1px solid var(--border);border-radius:16px;margin-top:16px;padding:24px}.stats{grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:12px;margin-top:16px;display:grid}.stat{border:1px solid var(--border);background:var(--surface);border-radius:16px;flex-direction:column;align-items:center;padding:20px;transition:all .15s;display:flex}.stat:hover{box-shadow:var(--shadow-sm);transform:translateY(-2px)}.stat-value{color:var(--text-h);font-size:32px;font-weight:800;font-family:var(--heading)}.stat-label{text-transform:uppercase;letter-spacing:.05em;color:var(--text-muted);font-size:11px;font-weight:700;font-family:var(--sans);text-align:center;margin-top:6px}.level-badge{font-weight:800;font-family:var(--heading);color:var(--primary);background:var(--primary-light);border:1px solid var(--primary-border);border-radius:999px;padding:6px 16px;font-size:14px;display:inline-block}.error{color:#b91c1c;background:#fee2e2;border-radius:10px;margin-top:8px;padding:8px 14px;font-size:13px;font-weight:600}.message{color:var(--primary);background:var(--primary-light);border-radius:10px;margin-top:8px;padding:8px 14px;font-size:13px;font-weight:600}@media (width<=1024px){.app-layout{grid-template-columns:var(--sidebar-collapsed) 1fr}.sidebar{width:var(--sidebar-collapsed)}.sidebar-logo img{height:24px}.sidebar-logo{justify-content:center;padding:20px 12px 14px;display:flex}.nav-item .nav-label{display:none}.nav-item{justify-content:center;padding:12px}.nav-item .nav-icon{font-size:20px}.sidebar-streak{justify-content:center;padding:8px;font-size:12px}.sidebar-streak .streak-text{display:none}.sidebar-user{flex-direction:column;padding:8px 6px}.sidebar-user-info{display:none}.sidebar-logout{justify-content:center;padding:10px;font-size:0}.sidebar-logout .logout-icon{font-size:16px}.main-content{padding:24px 24px 80px}}@media (width<=768px){.app-layout{grid-template-columns:1fr;padding-bottom:72px}.sidebar{display:none}.mobile-header{background:var(--surface);border-bottom:1px solid var(--border);z-index:90;justify-content:space-between;align-items:center;padding:12px 16px;display:flex;position:sticky;top:0}.mobile-header-logo img{height:22px}.mobile-header-right{align-items:center;gap:10px;display:flex}.mobile-streak{color:#92400e;background:linear-gradient(135deg,#fef9c3,#fde68a);border-radius:999px;padding:4px 10px;font-size:12px;font-weight:800}.mobile-avatar{object-fit:contain;border-radius:50%;width:28px;height:28px}.mobile-logout-btn{background:var(--surface-dim);color:var(--text-muted);border:1px solid var(--border);border-radius:8px;padding:6px 12px;font-size:12px;font-weight:600}.mobile-logout-btn:hover{box-shadow:none;transform:none}.bottom-nav{background:var(--surface);border-top:1px solid var(--border);z-index:100;padding:6px 0 env(safe-area-inset-bottom,6px);display:flex;position:fixed;bottom:0;left:0;right:0}.bottom-nav-item{color:var(--text-muted);cursor:pointer;font-size:10px;font-weight:600;font-family:var(--sans);background:0 0;border:none;flex-direction:column;flex:1;align-items:center;gap:2px;padding:8px 4px;transition:color .15s;display:flex}.bottom-nav-item:hover{box-shadow:none;transform:none}.bottom-nav-item.active{color:var(--primary)}.bottom-nav-item .bnav-icon{font-size:20px}.main-content{padding:20px 16px 80px}.panel{border-radius:16px;padding:20px}.panel h2{font-size:20px}.panel-header-with-mascot{flex-direction:column;align-items:flex-start}.mascot-reaction-box{display:none}.stats{grid-template-columns:repeat(2,1fr)}.stat-value{font-size:26px}.gate-card{border-radius:20px;padding:28px 20px}.chat-messages{max-height:320px}}@media (width<=400px){.stats{grid-template-columns:1fr}.options{flex-direction:column}.option{text-align:center;width:100%}}