@import"https://fonts.googleapis.com/css2?family=Nunito:wght@400;600;700;800;900&family=Nunito+Sans:wght@400;600;700&display=swap";:root{--green: #58CC02;--green-dark: #3E9A00;--green-light: #EAF9D4;--green-pale: #F4FDE8;--blue: #1CB0F6;--blue-light: #EFF8FF;--purple: #A560F8;--purple-dark: #9333EA;--purple-light: #F3E8FF;--orange: #FF9600;--orange-light: #FFF4E0;--red: #FF4B4B;--red-light: #FFE8E8;--text: #1a1a2e;--text-secondary: #6B7280;--text-light: #9CA3AF;--bg: #F8FAFC;--surface: #FFFFFF;--border: #E8ECF0;--border-dark: #D1D5DB;--shadow-sm: 0 1px 3px rgba(0,0,0,.08), 0 1px 2px rgba(0,0,0,.06);--shadow-md: 0 4px 6px rgba(0,0,0,.07), 0 2px 4px rgba(0,0,0,.06);--shadow-lg: 0 10px 15px rgba(0,0,0,.1), 0 4px 6px rgba(0,0,0,.05);--radius-sm: 8px;--radius-md: 12px;--radius-lg: 16px;--radius-xl: 20px;--radius-full: 999px;--font-display: "Nunito", sans-serif;--font-body: "Nunito Sans", sans-serif}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html{font-size:16px;scroll-behavior:smooth}body{font-family:var(--font-body);background:var(--bg);color:var(--text);line-height:1.6;-webkit-font-smoothing:antialiased}.app-layout{display:flex;flex-direction:column;min-height:100vh}.main-content{flex:1;max-width:860px;width:100%;margin:0 auto;padding:20px 16px 40px}.navbar{position:sticky;top:0;z-index:100;background:#fffffff2;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border-bottom:1px solid var(--border);transition:box-shadow .2s}.navbar.scrolled{box-shadow:var(--shadow-md)}.navbar-inner{max-width:860px;margin:0 auto;display:flex;align-items:center;justify-content:space-between;padding:12px 16px}.navbar-brand{display:flex;align-items:center;gap:8px;text-decoration:none}.brand-icon{font-size:1.4rem}.brand-name{font-family:var(--font-display);font-size:1.25rem;font-weight:900;color:var(--green);letter-spacing:-.5px}.navbar-nav{display:flex;align-items:center;gap:4px}.nav-link{display:flex;align-items:center;gap:6px;padding:8px 14px;border-radius:var(--radius-full);font-family:var(--font-display);font-size:.875rem;font-weight:700;color:var(--text-secondary);text-decoration:none;transition:all .15s}.nav-link:hover,.nav-link.active{background:var(--green-light);color:var(--green)}.app-store-btn{display:flex;align-items:center;gap:6px;background:var(--text);color:#fff;padding:8px 14px;border-radius:var(--radius-full);font-family:var(--font-display);font-size:.8rem;font-weight:800;text-decoration:none;transition:all .15s;box-shadow:0 2px #0000004d}.app-store-btn:hover{transform:translateY(-1px);box-shadow:0 4px #0000004d}.page-title{font-family:var(--font-display);font-size:1.75rem;font-weight:900;color:var(--text);letter-spacing:-.5px}.page-subtitle{font-size:.9rem;color:var(--text-secondary);margin-top:4px}.page-header{margin-bottom:24px}.card{background:var(--surface);border-radius:var(--radius-xl);border:1.5px solid var(--border);padding:20px;box-shadow:var(--shadow-sm)}.card-title{font-family:var(--font-display);font-size:1rem;font-weight:800;color:var(--text);margin-bottom:12px}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-family:var(--font-display);font-weight:800;font-size:1rem;padding:12px 24px;border-radius:var(--radius-full);border:none;cursor:pointer;transition:all .15s;text-decoration:none}.btn-primary{background:var(--green);color:#fff;box-shadow:0 4px 0 var(--green-dark)}.btn-primary:hover{transform:translateY(-1px);box-shadow:0 5px 0 var(--green-dark)}.btn-primary:active{transform:translateY(2px);box-shadow:0 2px 0 var(--green-dark)}.btn-ghost{background:transparent;color:var(--green);border:2px solid var(--green)}.btn-ghost:hover{background:var(--green-light)}.btn-sm{padding:8px 16px;font-size:.875rem}.ad-banner{background:#f0f0f0;border-top:1px solid #E0E0E0;min-height:60px;display:flex;align-items:center;justify-content:center;border-radius:var(--radius-md);margin-top:12px;overflow:hidden}.ad-banner ins{display:block!important}.score-row{display:flex;gap:12px;margin-bottom:16px}.score-badge{flex:1;background:#fffbea;border-radius:var(--radius-md);padding:12px;text-align:center;border:1.5px solid #FFE5A0}.score-badge.blue{background:var(--blue-light);border-color:var(--blue)}.score-label{font-size:.75rem;color:var(--text-secondary);font-weight:700;display:block}.score-value{font-family:var(--font-display);font-size:1.75rem;font-weight:900;color:var(--orange);display:block}.score-value.blue{color:var(--blue)}.prompt-card{background:var(--green);border-radius:var(--radius-xl);padding:24px;text-align:center;border-bottom:5px solid var(--green-dark);box-shadow:0 4px 20px #58cc024d;margin-bottom:20px}.prompt-tag{display:inline-block;background:#ffffff40;border-radius:var(--radius-full);padding:4px 14px;font-size:.8rem;color:#fff;font-weight:700;margin-bottom:8px}.prompt-word{font-family:var(--font-display);font-size:2.5rem;font-weight:900;color:#fff}.prompt-sub{font-size:.875rem;color:#ffffffd9;margin-top:4px}.feedback-bar{position:fixed;bottom:0;left:0;right:0;padding:16px 20px;display:flex;align-items:center;justify-content:space-between;animation:slideUp .25s ease-out;z-index:50}.feedback-bar.correct{background:var(--green-light);border-top:3px solid var(--green)}.feedback-bar.wrong{background:var(--red-light);border-top:3px solid var(--red)}.feedback-text{font-family:var(--font-display);font-weight:800;font-size:1.1rem}.feedback-bar.correct .feedback-text{color:var(--green-dark)}.feedback-bar.wrong .feedback-text{color:var(--red)}.feedback-answer{font-size:.85rem;color:var(--text-secondary);margin-top:2px}@keyframes slideUp{0%{transform:translateY(100%)}to{transform:translateY(0)}}.footer{text-align:center;padding:20px;border-top:1px solid var(--border);font-size:.8rem;color:var(--text-light)}.footer a{color:var(--green);text-decoration:none;font-weight:700}.progress-wrap{background:var(--border);border-radius:var(--radius-full);overflow:hidden}.progress-fill{height:100%;border-radius:var(--radius-full);transition:width .4s ease}@media (max-width: 600px){.navbar-nav .nav-link span,.app-store-btn span{display:none}.prompt-word{font-size:1.8rem}.main-content{padding:16px 12px 80px}}.appstore-float{position:fixed;bottom:24px;right:20px;z-index:90;display:flex;align-items:center;gap:10px;background:var(--text);color:#fff;padding:12px 18px;border-radius:var(--radius-xl);box-shadow:var(--shadow-lg);text-decoration:none;font-family:var(--font-display);font-weight:800;font-size:.85rem;transition:all .2s;border-bottom:4px solid rgba(0,0,0,.3)}.appstore-float:hover{transform:translateY(-2px);box-shadow:0 16px 30px #0003}.appstore-float .float-icon{font-size:1.4rem}.appstore-float .float-text{display:flex;flex-direction:column}.appstore-float .float-sub{font-size:.65rem;font-weight:600;opacity:.7}.appstore-float .float-label{font-size:.85rem;line-height:1}