:root{--primary: #FF9800;--primary-dark: #F57C00;--secondary: #4CAF50;--accent: #2196F3;--bg-color: #FFF3E0;--card-bg: rgba(255, 255, 255, .9);--text-main: #3E2723;--text-light: #795548;--danger: #F44336;--success: #4CAF50;--shadow-soft: 0 12px 32px rgba(255, 152, 0, .15);--shadow-inner: inset 0 2px 4px rgba(0,0,0,.05);--radius-lg: 24px;--radius-md: 16px}*{box-sizing:border-box;margin:0;padding:0;font-family:Nunito,Segoe UI,sans-serif}body{background:radial-gradient(circle at top left,#FFE0B2,var(--bg-color));color:var(--text-main);min-height:100vh;display:flex;justify-content:center;align-items:center}.app-container{width:100%;max-width:480px;height:100vh;max-height:850px;padding:16px;position:relative}.cloud-toast{position:absolute;top:24px;right:24px;z-index:100;background:#fffc;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);padding:8px 16px;border-radius:30px;display:flex;align-items:center;gap:8px;font-size:14px;font-weight:700;box-shadow:0 4px 12px #00000014}.cloud-toast.loading{color:var(--accent)}.cloud-toast.success{color:var(--success)}.cloud-toast.error{color:var(--danger)}.main-card{background:var(--card-bg);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-radius:var(--radius-lg);box-shadow:var(--shadow-soft);width:100%;height:100%;position:relative;overflow:hidden;display:flex;flex-direction:column}.screen{flex:1;padding:24px;display:flex;flex-direction:column;overflow-y:auto;position:relative;z-index:1}.btn{border:none;border-radius:var(--radius-md);padding:14px 20px;font-size:16px;font-weight:700;cursor:pointer;display:flex;align-items:center;justify-content:center;gap:8px;transition:all .2s cubic-bezier(.4,0,.2,1)}.btn:active{transform:scale(.96)}.btn:disabled{opacity:.6;cursor:not-allowed}.btn-large{padding:18px 24px;font-size:18px}.btn-primary{background:linear-gradient(135deg,var(--primary),var(--primary-dark));color:#fff;box-shadow:0 4px 12px #ff98004d}.btn-secondary{background:#efebe9;color:var(--text-main)}.btn-accent{background:linear-gradient(135deg,#42a5f5,#1e88e5);color:#fff;box-shadow:0 4px 12px #2196f34d}.btn-icon{background:transparent;border:none;cursor:pointer;color:var(--text-main);padding:8px;border-radius:50%}.btn-icon:hover{background:#0000000d}.start-screen{align-items:center;justify-content:center;text-align:center}.hero-visual{height:160px;display:flex;align-items:flex-end;justify-content:center;gap:20px;margin-bottom:24px}.hero-explorer{width:100px;height:100px;animation:float 3s ease-in-out infinite}.hero-chest{width:80px;height:80px}.game-title{font-size:32px;color:var(--primary-dark);margin-bottom:8px;text-shadow:1px 1px 0 #fff}.subtitle{color:var(--text-light);margin-bottom:24px}.stats-row{display:flex;gap:12px;margin-bottom:32px}.stat-badge{background:#fff;padding:8px 16px;border-radius:20px;font-weight:700;display:flex;align-items:center;gap:6px;box-shadow:0 2px 8px #0000000d}.action-buttons{display:flex;flex-direction:column;gap:12px;width:100%;max-width:280px}.action-buttons.row{flex-direction:row;max-width:100%}.action-buttons.row .btn{flex:1}.hud{display:flex;justify-content:space-between;background:#fff;padding:12px 16px;border-radius:var(--radius-md);box-shadow:0 2px 8px #0000000d;margin-bottom:16px;font-weight:700}.hud-item{display:flex;align-items:center;gap:4px}.small-icon{width:20px;height:20px}.progress-container{height:24px;background:#efebe9;border-radius:12px;position:relative;overflow:hidden;margin-bottom:24px;box-shadow:var(--shadow-inner)}.progress-bar{height:100%;background:linear-gradient(90deg,var(--secondary),#81C784);transition:width .3s ease}.progress-text{position:absolute;top:0;left:0;width:100%;height:100%;display:flex;align-items:center;justify-content:center;font-size:12px;font-weight:700;color:#333;text-shadow:0 0 2px rgba(255,255,255,.8)}.question-card{background:#fff;padding:24px;border-radius:var(--radius-lg);box-shadow:0 4px 16px #0000000f;margin-bottom:24px}.subject-tag{display:inline-block;background:#e3f2fd;color:#1976d2;padding:4px 12px;border-radius:12px;font-size:12px;font-weight:700;margin-bottom:12px}.question-text{font-size:20px;line-height:1.4;margin-bottom:24px}.options-grid{display:flex;flex-direction:column;gap:12px}.btn-option{background:#fafafa;border:2px solid #EEEEEE;border-radius:var(--radius-md);padding:16px;font-size:16px;text-align:left;cursor:pointer;transition:all .2s;font-weight:600;color:var(--text-main)}.btn-option:hover:not(.disabled){border-color:var(--primary);background:#fff3e0;transform:translate(4px)}.btn-option.correct{background:#e8f5e9;border-color:var(--success);color:var(--success)}.btn-option.disabled{opacity:.7;cursor:default}.visual-feedback-area{height:80px;position:relative;border-bottom:4px solid #D7CCC8;margin-top:auto;padding:0 20px}.explorer-avatar{width:60px;height:60px;position:absolute;bottom:0;left:0;margin-left:-30px}.goal-door{width:60px;height:60px;position:absolute;bottom:0;right:0}.answer-feedback{position:absolute;top:40%;left:50%;transform:translate(-50%,-50%);padding:20px 32px;border-radius:20px;font-size:24px;font-weight:700;color:#fff;display:flex;flex-direction:column;align-items:center;gap:8px;box-shadow:0 10px 30px #0003;z-index:10}.answer-feedback.success{background:var(--success)}.answer-feedback.fail{background:var(--danger)}.over-screen{align-items:center;text-align:center}.over-title{font-size:28px;color:var(--primary-dark);margin:16px 0}.summary-box{background:#fff;width:100%;padding:20px;border-radius:var(--radius-lg);display:flex;justify-content:space-around;margin-bottom:24px;box-shadow:0 4px 12px #0000000d}.summary-item{display:flex;flex-direction:column;gap:4px}.summary-item .label{font-size:12px;color:var(--text-light)}.summary-item .value{font-size:20px;font-weight:700}.summary-item .highlight{color:var(--primary);font-size:28px}.chart-wrapper{width:100%;background:#fff;padding:16px;border-radius:var(--radius-lg);margin-bottom:24px;box-shadow:0 4px 12px #0000000d}.chart-header{display:flex;align-items:center;gap:8px;font-size:14px;font-weight:700;color:var(--text-light);margin-bottom:16px;justify-content:center}.custom-chart{display:flex;justify-content:space-around;align-items:flex-end;height:120px;padding-top:20px}.bar-container{display:flex;flex-direction:column;align-items:center;gap:4px;height:100%;justify-content:flex-end;flex:1}.bar-track{width:24px;height:80px;background:#f5f5f5;border-radius:12px;position:relative;overflow:hidden;display:flex;align-items:flex-end}.bar-fill{width:100%;background:linear-gradient(0deg,var(--primary),#FFB74D);border-radius:12px}.bar-value{font-size:10px;font-weight:700;color:var(--primary-dark)}.bar-label{font-size:10px;color:var(--text-light)}.header-row{display:flex;justify-content:space-between;align-items:center;margin-bottom:24px}.wrong-list{display:flex;flex-direction:column;gap:16px}.wrong-card{background:#fff;padding:16px;border-radius:var(--radius-md);box-shadow:0 2px 8px #0000000d;border-left:4px solid var(--danger)}.wrong-tags{display:flex;gap:8px;margin-bottom:8px}.tag{font-size:12px;padding:2px 8px;border-radius:10px;background:#eee;color:#616161}.tag.error{background:#ffebee;color:var(--danger)}.wrong-q{font-weight:700;margin-bottom:12px}.ans-row{display:flex;align-items:center;gap:6px;font-size:14px;margin-top:4px}.ans-row.fail{color:var(--danger)}.ans-row.success{color:var(--success)}.empty-state{text-align:center;padding:40px 20px;color:var(--text-light);font-size:16px}.ai-form{display:flex;flex-direction:column;gap:16px;flex:1}.ai-desc{color:var(--text-light);line-height:1.5}.ai-input{flex:1;min-height:150px;padding:16px;border-radius:var(--radius-md);border:2px solid #E0E0E0;font-size:16px;resize:none;background:#fff;transition:border-color .2s}.ai-input:focus{outline:none;border-color:var(--accent)}.spin{animation:spin 1s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}@keyframes float{0%,to{transform:translateY(0)}50%{transform:translateY(-10px)}}