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rgba(255,255,255,.38)}.hero-btn.secondary:hover{background:#ffffff14;border-color:#ffffff8c}.stats-band-wrapper{position:relative;z-index:50;margin-top:-72px;padding:0 40px}.stats-band{display:flex;align-items:center;justify-content:space-around;gap:12px;max-width:1100px;min-height:144px;margin:0 auto;padding:40px 48px;background:#ffffffb8;border:1px solid rgba(226,232,240,.7);border-radius:var(--radius-xl);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);box-shadow:0 8px 40px #0f172a0f}.stat-item{display:flex;flex-direction:column;align-items:center;flex:1;text-align:center}.stat-number{margin-bottom:8px;color:var(--primary-color);font-size:clamp(2rem,3.5vw,2.8rem);font-weight:800;line-height:1}.stat-label{color:var(--text-muted);font-size:var(--landing-label);font-weight:700;letter-spacing:.08em;text-transform:uppercase}.stat-divider{width:1px;height:48px;background:var(--border);flex-shrink:0;margin:0 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td{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:8px 2px;border-bottom:1px solid rgba(148,163,184,.15);font-size:.82rem;text-align:right!important}.db-table td:last-child{border-bottom:none;padding-top:10px}.db-table td:before{content:attr(data-label);color:var(--text-secondary);font-size:.72rem;font-weight:700;letter-spacing:.02em;text-transform:uppercase;text-align:left}.db-table td[data-label=Actions]>div{width:100%;justify-content:flex-end;flex-wrap:wrap}}.db-ratings-list{display:grid;gap:10px;margin-top:12px}.db-rating-item{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:12px 14px;border:1px solid var(--border);border-radius:10px;background:var(--surface);transition:background .2s ease,border-color .2s ease}.db-rating-item:hover{background:var(--background-gray);border-color:var(--border)}.db-rating-actor{margin:0 0 4px;font-size:.88rem;font-weight:700;color:var(--text-primary)}.db-rating-time{display:block;font-size:.78rem;color:var(--text-secondary)}.db-rating-score{font-size:1rem;font-weight:700;color:#fbbf24;white-space:nowrap}.db-anon-response-richtext{margin-top:0;margin-bottom:0;color:var(--text-primary)}@media(max-width:420px){.db-stats-grid.db-stats-grid--two{grid-template-columns:repeat(2,minmax(0,1fr));gap:8px}}.admin-user-back{margin-bottom:12px}.cq-processing-overlay{position:fixed;top:0;right:0;bottom:0;left:0;z-index:1400;background:#0006;display:flex;align-items:center;justify-content:center;padding:20px}.cq-processing-card{min-width:260px;max-width:420px;border:1px solid var(--border);border-radius:var(--radius-lg);background:var(--surface);color:var(--text-primary);padding:20px;text-align:center;box-shadow:var(--shadow-lg)}.cq-processing-card p{margin:10px 0 0;color:var(--text-secondary);font-weight:600}.cq-processing-spinner{width:34px;height:34px;margin:0 auto;border:3px solid var(--border);border-top-color:var(--primary-color);border-radius:50%;animation:cqSpin .8s linear infinite}@keyframes cqSpin{to{transform:rotate(360deg)}}.page-wrapper{display:flex;flex-direction:column;justify-content:center;align-items:center;gap:0;min-height:calc(100vh - 80px);padding:28px 24px;width:100%;box-sizing:border-box}.quiz-create-header{width:min(1240px,100%);margin:0 auto 18px;padding:0 4px;text-align:left}.quiz-create-header .main-page-title{margin-top:0;margin-bottom:10px;text-align:left}.quiz-create-header .main-page-description{margin-bottom:0;text-align:left}.quiz-card-container{max-width:1240px;width:100%;background:var(--surface);border-radius:var(--radius-xl);box-shadow:var(--shadow-md);padding:40px;margin-top:20px;margin-bottom:20px;box-sizing:border-box;border:1px solid var(--border);border-top:4px solid var(--primary-color)}.main-page-title{color:var(--text-primary);font-size:2.2rem;font-weight:900;margin-bottom:12px;text-align:center}.main-page-description{color:var(--text-secondary);font-size:1rem;margin-bottom:28px;text-align:center;line-height:1.6}.subject-section{margin-bottom:28px;padding:22px;background:var(--background-gray);border-radius:var(--radius-md);border:1px solid var(--border)}.subject-label{font-weight:700;color:var(--primary-color);font-size:1rem;display:flex;align-items:center;gap:10px;margin-bottom:10px}.subject-select{width:100%;padding:12px 44px 12px 16px;border-radius:var(--radius-md);border:1px solid var(--border);background:var(--surface);color:var(--text-primary);font-size:1rem;margin-top:6px;transition:var(--transition);-webkit-appearance:none;-moz-appearance:none;appearance:none;background-image:url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 20 20'%3e%3cpath stroke='%2394a3b8' stroke-linecap='round' stroke-linejoin='round' stroke-width='1.5' d='m6 8 4 4 4-4'/%3e%3c/svg%3e");background-position:right 14px center;background-repeat:no-repeat;background-size:16px}.subject-select:focus{outline:none;border-color:var(--primary-color);box-shadow:0 0 0 3px #2563eb1f}.custom-subject-container{margin-top:10px;display:block;animation:slideDown .22s ease}.subject-input{width:100%;padding:12px 16px;border-radius:var(--radius-md);border:1px solid var(--border);background:var(--surface);color:var(--text-primary);font-size:1rem;transition:var(--transition);box-sizing:border-box}.subject-input:focus{outline:none;border-color:var(--primary-color);box-shadow:0 0 0 3px #2563eb1f}.subject-hint{color:var(--color-info);font-size:.9rem;margin-top:8px;display:flex;align-items:center;gap:8px}.tab-group{display:flex;justify-content:center;gap:0;border-bottom:2px solid var(--border);margin-bottom:28px;background:var(--background-gray);border-radius:var(--radius-md) var(--radius-md) 0 0;overflow:hidden}.tab{flex:1;text-align:center;color:var(--text-secondary);background:none;border:none;font-size:1rem;font-weight:600;padding:14px 0 12px;cursor:pointer;outline:none;border-bottom:3px solid transparent;transition:var(--transition);display:flex;align-items:center;justify-content:center;gap:8px;font-family:inherit}.tab.active{color:var(--primary-color);border-bottom:3px solid var(--primary-color);background:var(--surface);font-weight:700}.tab:not(.active):hover{color:var(--primary-color);background:#2563eb0d}.content-split{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-bottom:28px}.content-column{min-width:0}.column-title{font-size:.95rem;font-weight:700;color:var(--primary-color);margin-bottom:10px;display:inline-flex;align-items:center;gap:8px}.tab-content{background:var(--surface);border-radius:0 0 var(--radius-md) var(--radius-md);box-shadow:var(--shadow-sm);padding:30px;margin-bottom:28px;border:1px solid var(--border);border-top:none}.text-column-content{border-top:1px solid var(--border);border-radius:var(--radius-md);margin-bottom:0}@keyframes slideIn{0%{opacity:0;transform:translateY(16px)}to{opacity:1;transform:translateY(0)}}.tab-content.slide-in{animation:slideIn .28s ease}.upload-zone{border:2px dashed var(--border);border-radius:var(--radius-md);padding:48px 18px;text-align:center;background:var(--background-gray);color:var(--text-primary);transition:var(--transition);cursor:pointer}.upload-zone:hover{border-color:var(--primary-color);background:#2563eb0a}.upload-icon{font-size:1.25rem;font-weight:800;color:var(--primary-color);margin-bottom:16px}.upload-text{font-size:1.15rem;font-weight:700;margin-bottom:8px;color:var(--text-primary)}.upload-description{font-size:.95rem;color:var(--text-secondary);margin-bottom:18px}.hidden-file-input{display:none}.select-file-button{background:var(--primary-color);color:#fff;border:none;border-radius:var(--radius-md);padding:11px 24px;font-size:1rem;font-weight:700;cursor:pointer;transition:var(--transition);display:inline-block;font-family:inherit}.select-file-button:hover{background:var(--primary-dark)}.file-name-display{display:block;margin:14px 0 0;color:var(--text-primary);font-weight:600;font-size:.95rem;padding:10px 14px;background:#2563eb12;border:1px solid rgba(37,99,235,.2);border-radius:var(--radius-md);animation:slideDown .28s ease}.file-name-display.success{color:var(--color-success);border-color:#16a34a4d;background:var(--color-success-bg)}.file-name-display.error{color:var(--color-danger);border-color:#dc26264d;background:var(--color-danger-bg)}@keyframes slideDown{0%{opacity:0;transform:translateY(-8px)}to{opacity:1;transform:translateY(0)}}.tab-content textarea{width:100%;min-height:260px;background:var(--background-gray);color:var(--text-primary);border:1px solid 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var(--border);background:var(--surface);color:var(--text-primary);font-size:1rem;text-align:center;-moz-appearance:textfield;appearance:textfield;-webkit-appearance:textfield;transition:var(--transition);font-weight:600;font-family:inherit}.number-input::-webkit-outer-spin-button,.number-input::-webkit-inner-spin-button{-webkit-appearance:none;margin:0}.number-input:focus{outline:none;border-color:var(--primary-color);box-shadow:0 0 0 3px #2563eb1f}#difficultySelect{width:100%;max-width:220px;padding:10px 40px 10px 14px;border-radius:var(--radius-md);border:1px solid var(--border);background:var(--surface);font-size:.95rem;font-weight:600;color:var(--text-primary);-webkit-appearance:none;-moz-appearance:none;appearance:none;background-image:url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 20 20'%3e%3cpath stroke='%2394a3b8' stroke-linecap='round' stroke-linejoin='round' stroke-width='1.5' d='m6 8 4 4 4-4'/%3e%3c/svg%3e");background-position:right 12px center;background-repeat:no-repeat;background-size:16px;cursor:pointer;transition:var(--transition);font-family:inherit}#difficultySelect:focus{border-color:var(--primary-color);box-shadow:0 0 0 3px #2563eb1f;outline:none}.actions-row{display:flex;gap:16px;margin-top:28px;flex-wrap:wrap;align-items:center}.main-btn{background:var(--primary-color);color:#fff;border:none;border-radius:var(--radius-md);padding:14px 0;flex:2;min-width:200px;font-size:1.05rem;font-weight:700;cursor:pointer;transition:var(--transition);font-family:inherit}.main-btn:hover{background:var(--primary-dark);box-shadow:var(--shadow-md)}.clear-btn{flex:1;min-width:120px;background:var(--surface);color:var(--text-primary);border:1px solid var(--border);border-radius:var(--radius-md);padding:14px 0;font-size:1rem;font-weight:600;cursor:pointer;transition:var(--transition);font-family:inherit}.clear-btn:hover{border-color:var(--primary-color);color:var(--primary-color);background:#2563eb0d}.extract-spinner{display:none;margin:28px auto;text-align:center;font-size:1rem;color:var(--text-secondary);font-weight:600;gap:14px;align-items:center;justify-content:center;padding:20px;background:var(--surface);border-radius:var(--radius-md);box-shadow:var(--shadow-md)}.spinner{border:4px solid var(--border);border-top:4px solid var(--primary-color);border-radius:50%;width:28px;height:28px;animation:spin 1s linear infinite;display:inline-block;vertical-align:middle;margin-right:12px}@keyframes spin{to{transform:rotate(360deg)}}.toast{position:fixed;top:88px;right:20px;background:var(--color-success);color:#fff;padding:12px 20px;border-radius:var(--radius-md);box-shadow:var(--shadow-md);font-weight:600;z-index:9999;display:none;font-size:.95rem}.api-error-message{color:var(--color-danger);background:var(--color-danger-bg);border-radius:var(--radius-md);padding:14px 18px;margin-top:20px;font-size:.95rem;text-align:center;border:1px solid rgba(220,38,38,.25);font-weight:600}.quiz-results-container{margin-top:32px;background:var(--surface);border:1px solid var(--border);border-top:4px solid var(--primary-color);border-radius:var(--radius-lg);padding:32px;box-shadow:var(--shadow-md)}.results-title{color:var(--primary-color);font-size:1.8rem;font-weight:800;margin-bottom:24px;text-align:center}.question-type-title{color:var(--text-primary);font-size:1.25rem;font-weight:700;margin-top:24px;margin-bottom:16px;border-bottom:2px solid var(--primary-color);padding-bottom:10px;display:flex;align-items:center;gap:10px}.question-list{list-style:none;padding:0;margin-top:14px;counter-reset:question-counter}.question-item{margin-bottom:20px;padding:18px 18px 18px 22px;border-radius:var(--radius-md);background:var(--background-gray);border-left:4px solid var(--primary-color);transition:var(--transition);counter-increment:question-counter}.question-item:hover{box-shadow:var(--shadow-sm)}.question-text{font-size:1rem;color:var(--text-primary);margin-bottom:12px;line-height:1.5;font-weight:600}.options-list{list-style:none;padding:0;margin:12px 0;counter-reset:option-counter}.options-list li{margin-bottom:8px;color:var(--text-secondary);font-size:.95rem;padding:8px 12px 8px 36px;background:var(--surface);border-radius:var(--radius-sm);border-left:3px solid var(--primary-light);position:relative;counter-increment:option-counter}.options-list li:before{content:counter(option-counter,lower-alpha);position:absolute;left:10px;top:50%;transform:translateY(-50%);background:var(--primary-color);color:#fff;width:20px;height:20px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:.76rem;font-weight:700}.question-answer{background:var(--color-success-bg);border:1px solid rgba(22,163,74,.25);border-radius:var(--radius-sm);padding:10px 12px;margin-top:12px;color:var(--color-success);font-size:.95rem;font-weight:600}.character-count{margin-top:8px;font-size:.85rem;color:var(--text-muted);text-align:right}.character-count #charCount{font-weight:700;color:var(--primary-color)}.text-input-container{position:relative}.yt-input-row{display:flex;align-items:center;gap:10px;flex-wrap:wrap}.yt-link-icon{color:var(--text-muted);font-size:1rem;flex-shrink:0}.yt-url-input{flex:1;min-width:0;padding:12px 16px;border-radius:var(--radius-md);border:1px solid var(--border);background:var(--background-gray);color:var(--text-primary);font-size:1rem;transition:var(--transition);box-sizing:border-box;font-family:inherit}.yt-url-input::placeholder{color:var(--text-muted)}.yt-url-input:focus{outline:none;border-color:var(--primary-color);background:var(--surface);box-shadow:0 0 0 3px #2563eb1f}.yt-url-input:disabled{opacity:.6;cursor:not-allowed}.yt-load-btn{padding:12px 22px;border-radius:var(--radius-md);border:none;background:var(--primary-color);color:#fff;font-size:.95rem;font-weight:700;cursor:pointer;white-space:nowrap;transition:var(--transition);flex-shrink:0;font-family:inherit}.yt-load-btn:hover:not(:disabled){background:var(--primary-dark)}.yt-load-btn:disabled{opacity:.5;cursor:not-allowed}.yt-hint{margin-top:14px;font-size:.88rem;color:var(--text-muted);line-height:1.5}.yt-preview{margin-top:18px;border:1px solid var(--border);border-radius:var(--radius-md);overflow:hidden;background:var(--background-gray);animation:slideDown .28s ease}.yt-embed-wrapper{position:relative;width:100%;padding-bottom:56.25%}.yt-embed{position:absolute;top:0;right:0;bottom:0;left:0;width:100%;height:100%;border:none}.yt-preview-meta{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:10px 14px;border-top:1px solid var(--border)}.yt-preview-title{font-size:.9rem;font-weight:600;color:var(--text-primary);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.yt-preview-chars{font-size:.82rem;color:var(--color-success);font-weight:600;white-space:nowrap;flex-shrink:0}@media(max-width:768px){.page-wrapper{padding:20px 16px}.quiz-card-container{padding:28px 20px;border-radius:var(--radius-lg)}.main-page-title{font-size:1.8rem}.main-page-description{font-size:.95rem;margin-bottom:20px}.subject-section{padding:16px}.content-split{grid-template-columns:1fr;gap:16px}.tab{font-size:.93rem;padding:12px 0}.tab-content{padding:20px}.upload-zone{padding:36px 16px}.tab-content textarea{min-height:200px;padding:14px}.options-row{grid-template-columns:1fr 1fr;gap:14px;padding:18px}.actions-row{flex-direction:column;gap:12px}.main-btn,.clear-btn{width:100%;flex:none;min-width:unset;padding:13px 0}.results-title{font-size:1.5rem}.question-type-title{font-size:1.15rem}.quiz-results-container{padding:20px}.question-item{padding:14px 14px 14px 18px}.yt-input-row{flex-direction:column;align-items:stretch}.yt-link-icon{display:none}.yt-url-input,.yt-load-btn{width:100%}}@media(max-width:480px){.page-wrapper{padding:14px 12px}.quiz-card-container{padding:20px}.main-page-title{font-size:1.55rem}.upload-zone{padding:28px 12px}.select-file-button{padding:10px 20px;font-size:.95rem}.tab-content textarea{min-height:160px;padding:12px;font-size:.95rem}.options-row{grid-template-columns:1fr 1fr;gap:12px;padding:14px}.number-input{max-width:80px;padding:8px 10px}#difficultySelect{max-width:140px;font-size:.9rem}.quiz-results-container{padding:16px}.results-title{font-size:1.35rem}.question-type-title{font-size:1.05rem}.question-text{font-size:.95rem}.options-list li,.question-answer{font-size:.88rem}}:root{--quiz-accent: #2563eb;--quiz-accent-dark: #1d4ed8;--quiz-black: #ffffff;--quiz-surface: #ffffff;--quiz-surface-elevated: #f0f6fb;--quiz-content-card: #d4e8f8;--quiz-border: #e2e8f0;--quiz-text-primary: #0f172a;--quiz-text-secondary: #475569;--quiz-text-muted: #94a3b8;--quiz-red: #dc2626;--quiz-green: #16a34a;--quiz-orange: #d97706}.quiz-page{max-width:1080px;margin:0 auto;padding:96px 20px 120px;min-height:100vh;background:var(--quiz-black);color:var(--quiz-text-secondary);font-family:Outfit,sans-serif}.quiz-state-text{color:var(--quiz-text-primary)}.quiz-page-header{display:flex;justify-content:space-between;align-items:flex-end;gap:16px;margin-bottom:16px}.quiz-kicker{margin:0 0 6px;text-transform:uppercase;letter-spacing:.6px;color:var(--quiz-accent);font-size:.8rem;font-weight:700}.quiz-page-header h1{margin:0;color:var(--quiz-text-primary);font-size:1.5rem;font-weight:800}.quiz-progress-copy{margin:0;color:var(--quiz-accent);border:1px solid var(--quiz-accent);border-radius:999px;padding:8px 12px;font-weight:700;background:transparent}.quiz-top-shell{display:grid;grid-template-columns:1fr auto;gap:10px;margin-bottom:12px}.quiz-timer-pill{border-radius:12px;color:#fff;background:var(--quiz-red);display:flex;align-items:center;justify-content:center;gap:14px;min-height:62px;padding:10px 16px;box-shadow:0 8px 20px #dc262640}.quiz-timer-label{font-size:clamp(1rem,2vw,1.35rem);font-weight:900}.quiz-timer-value{font-size:clamp(1rem,2vw,1.35rem);font-weight:900;font-variant-numeric:tabular-nums}.quiz-timer-value.invisible{visibility:hidden}.quiz-hide-btn{border:1px solid var(--quiz-border);border-radius:12px;background:var(--quiz-surface-elevated);color:var(--quiz-text-primary);min-width:82px;padding:0 14px;font-weight:700;cursor:pointer}.quiz-meta-shell{border:1px solid var(--quiz-border);background:var(--quiz-surface-elevated);border-radius:12px;padding:14px 16px;margin-bottom:14px}.quiz-meta-title{margin:0;color:var(--quiz-text-primary);font-size:1.1rem}.quiz-meta-row{display:flex;align-items:center;justify-content:space-between;gap:12px}.quiz-meta-status{color:var(--quiz-text-muted);margin:0 0 0 auto;text-align:right}.quiz-flag-link{border:none;background:transparent;color:var(--quiz-green);cursor:pointer;padding:0;font-weight:700}.quiz-flag-link.active{color:#f87171}.quiz-question-shell{background:var(--quiz-surface-elevated);border:1px solid var(--quiz-border);border-radius:14px;padding:22px}.quiz-question-body{color:var(--quiz-text-primary);font-size:clamp(1rem,1.6vw,1.18rem);line-height:1.65;margin-bottom:18px}.quiz-rich-text 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solid var(--border);border-radius:var(--radius-lg);background:var(--surface);padding:32px 24px;text-align:center;box-shadow:var(--shadow-lg)}.quiz-gen-card p{margin:14px 0 0;color:var(--text-secondary);font-weight:600;font-size:.95rem}.quiz-gen-spinner{width:36px;height:36px;margin:0 auto;border:3px solid var(--border);border-top-color:var(--primary-color);border-radius:50%;animation:quizGenSpin .8s linear infinite}@keyframes quizGenSpin{to{transform:rotate(360deg)}}:root{--spacing-xs: 4px;--spacing-sm: 8px;--spacing-md: 12px;--spacing-lg: 16px;--spacing-xl: 20px;--spacing-2xl: 24px;--spacing-3xl: 28px;--spacing-4xl: 36px;--radius-sm: 7px;--radius-md: 9px;--radius-lg: 10px;--radius-xl: 11px;--radius-2xl: 14px}.db-container{min-height:100vh;background:var(--background-gray);font-family:Outfit,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}.db-wrapper{display:block;min-height:calc(100vh - var(--navbar-height));margin-top:var(--navbar-height);position:relative}.db-main{padding:36px 40px;min-height:100vh;overflow-y:auto;font-family:Outfit,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;background:radial-gradient(ellipse at 0% 0%,rgba(245,158,11,.06) 0%,transparent 55%),radial-gradient(ellipse at 100% 100%,rgba(37,99,235,.04) 0%,transparent 50%),var(--background-gray)}@media(max-width:1023px){.db-main{margin-left:0;padding-bottom:calc(96px + env(safe-area-inset-bottom))}}.db-tab{animation:dbFade .22s ease}@keyframes dbFade{0%{opacity:0;transform:translateY(7px)}to{opacity:1;transform:translateY(0)}}.db-page-header{margin-bottom:var(--spacing-4xl);display:flex;align-items:center;justify-content:space-between;gap:20px}.db-page-header h1{font-size:1.9rem;font-weight:800;color:var(--text-primary);margin:0 0 var(--spacing-xs);letter-spacing:-.03em;line-height:1.1}.db-page-header p{color:var(--text-secondary);margin:0;font-size:.92rem}.db-greeting-time{font-size:.72rem;font-weight:700;text-transform:uppercase;letter-spacing:.12em;color:var(--primary-color);margin:0 0 6px}.db-streak-badge{display:flex;align-items:center;gap:12px;background:linear-gradient(135deg,#b45309,#f59e0b);color:#fff;padding:14px 22px;border-radius:16px;flex-shrink:0;box-shadow:0 4px 16px #b4530947}.db-streak-fire{font-size:1.8rem;line-height:1}.db-streak-badge strong{display:block;font-size:1.9rem;font-weight:900;line-height:1;letter-spacing:-.03em;font-family:Outfit,sans-serif}.db-streak-badge span{display:block;font-size:.68rem;text-transform:uppercase;letter-spacing:.1em;opacity:.85;font-weight:600;margin-top:1px}.db-stats-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:var(--spacing-md);margin-bottom:var(--spacing-3xl)}.db-stat-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-2xl);padding:var(--spacing-lg);display:flex;align-items:center;gap:var(--spacing-md);transition:transform .2s,border-color .2s,box-shadow .2s;cursor:default}.db-stat-card:hover{transform:translateY(-3px);border-color:var(--primary-color);box-shadow:0 6px 20px #2563eb14}.db-stat-icon{width:36px;height:36px;border-radius:calc(var(--radius-xl) - 2px);background:#2563eb14;display:flex;align-items:center;justify-content:center;color:var(--primary-color);font-size:.95rem;flex-shrink:0}.db-stat-body p{font-size:.75rem;color:var(--text-secondary);margin:0 0 var(--spacing-xs);font-weight:500}.db-stat-body h3{font-size:1.15rem;font-weight:700;color:var(--text-primary);margin:0;line-height:1}.db-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-2xl);padding:var(--spacing-3xl);margin-bottom:var(--spacing-2xl)}.db-card-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:var(--spacing-xl)}.db-card h2{font-size:1.05rem;font-weight:700;color:var(--text-primary);margin:0}.db-card.danger{border-color:#ef444438;background:#ef444408}.db-card.danger h2{color:#ef4444}.db-table-wrap{overflow-x:auto;border-radius:var(--radius-2xl);border:1px solid var(--border)}.db-table{width:100%;border-collapse:collapse;background:var(--surface);font-size:.88rem}.db-table thead{background:var(--background-gray)}.db-table th{padding:var(--spacing-lg) var(--spacing-lg);text-align:left;font-weight:700;color:var(--text-secondary);font-size:.75rem;text-transform:uppercase;letter-spacing:.06em;border-bottom:1px solid var(--border)}.db-table td{padding:var(--spacing-lg) var(--spacing-lg);border-bottom:1px solid var(--border);color:var(--text-secondary)}.db-table tbody tr:last-child td{border-bottom:none}.db-table tbody tr:hover td{background:var(--background-gray)}.db-table td[style*="fontWeight: 600"]{color:var(--text-primary)}@media(max-width:768px){.db-table{font-size:.8rem}.db-table th,.db-table td{padding:var(--spacing-sm) var(--spacing-md)}.db-table th{font-size:.7rem}}.db-form{display:flex;flex-direction:column;gap:var(--spacing-lg)}.db-form-row{display:grid;grid-template-columns:1fr 1fr;gap:var(--spacing-lg)}.db-field{display:flex;flex-direction:column;gap:var(--spacing-xs)}.db-field label{font-weight:600;color:var(--text-primary);font-size:.83rem}.db-field input,.db-field select,.db-field textarea{background:var(--background-gray, #1e1e1e);border:1px solid var(--border);color:var(--text-primary);padding:10px 13px;border-radius:var(--radius-md);font-size:.92rem;font-family:inherit;transition:border-color .2s,box-shadow .2s}.db-field input:focus,.db-field select:focus,.db-field textarea:focus{outline:none;border-color:var(--primary-color);box-shadow:0 0 0 3px #2563eb1a}.db-btn{display:inline-flex;align-items:center;gap:var(--spacing-xs);padding:10px 20px;border-radius:var(--radius-lg);font-weight:600;font-size:.88rem;cursor:pointer;border:none;transition:all .2s;font-family:inherit}.db-btn:disabled{opacity:.5;cursor:not-allowed;transform:none!important}.db-btn-primary{background:var(--primary-color);color:#fff}.db-btn-primary:hover:not(:disabled){background:var(--primary-dark);transform:translateY(-1px)}.db-btn-ghost{background:transparent;border:1px solid var(--border);color:var(--text-primary)}.db-btn-ghost:hover:not(:disabled){background:var(--background-gray)}.db-btn-danger{background:#ef4444;color:#fff}.db-btn-danger:hover:not(:disabled){background:#dc2626;transform:translateY(-1px)}.db-btn-sm{padding:6px 13px;font-size:.8rem;border-radius:var(--radius-sm)}.db-badge{display:inline-block;padding:2px 9px;border-radius:999px;font-size:.74rem;font-weight:600}.db-badge-green{background:#22c55e1f;color:#22c55e}.db-badge-red{background:#ef44441f;color:#ef4444}.db-badge-yellow{background:#d977061a;color:var(--color-warning)}.db-badge-gray{background:#94a3b81f;color:#94a3b8}.db-badge-blue{background:#3b82f61f;color:#3b82f6}.db-feedback{font-size:.82rem;margin-top:var(--spacing-xs)}.db-feedback-ok{color:#22c55e}.db-feedback-err{color:#ef4444}.db-alert{display:flex;align-items:center;gap:9px;padding:11px 14px;border-radius:10px;font-size:.87rem;font-weight:500;margin-bottom:18px}.db-alert-success{background:#22c55e17;border:1px solid rgba(34,197,94,.2);color:#22c55e}.db-alert-error{background:#ef444417;border:1px solid rgba(239,68,68,.2);color:#ef4444}.db-alert-info{background:var(--color-info-bg);border:1px solid rgba(30,58,138,.2);color:var(--primary-color)}.db-empty{text-align:center;padding:56px 24px;color:var(--text-secondary)}.db-empty-icon{font-size:2.2rem;margin-bottom:10px;opacity:.35;display:flex;justify-content:center}.db-empty p{margin:0 0 16px;font-size:.92rem}.db-actions-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:var(--spacing-lg)}.db-action-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-2xl);padding:var(--spacing-2xl) var(--spacing-lg);text-align:center;cursor:pointer;transition:transform .2s,border-color .2s,box-shadow .2s;display:flex;flex-direction:column;align-items:center;gap:var(--spacing-lg);font-family:inherit}.db-action-card:hover{transform:translateY(-3px);border-color:var(--primary-color);box-shadow:0 6px 18px #2563eb1a}.db-action-card .db-action-icon{width:46px;height:46px;border-radius:12px;background:#2563eb14;display:flex;align-items:center;justify-content:center;color:var(--primary-color);font-size:1.1rem}.db-action-card h3{font-size:.92rem;font-weight:700;color:var(--text-primary);margin:0}.db-action-card p{font-size:.78rem;color:var(--text-secondary);margin:0}.db-activity-list{display:flex;flex-direction:column;gap:10px}.db-activity-item{display:flex;align-items:center;gap:var(--spacing-lg);padding:var(--spacing-lg);background:transparent;border-radius:var(--radius-xl);border:1px solid var(--border);transition:background .15s}.db-activity-item:hover{background:var(--background-gray)}.db-activity-dot{width:36px;height:36px;border-radius:50%;background:#2563eb14;display:flex;align-items:center;justify-content:center;color:var(--primary-color);font-size:.85rem;flex-shrink:0}.db-activity-body{flex:1}.db-activity-body p{font-weight:600;color:var(--text-primary);margin:0 0 var(--spacing-xs);font-size:.88rem}.db-activity-body span{font-size:.78rem;color:var(--text-muted, #666)}.db-activity-score{background:#2563eb14;color:var(--primary-color);padding:3px 10px;border-radius:8px;font-weight:700;font-size:.82rem;white-space:nowrap}.db-tab-nav{display:flex;gap:4px;margin-bottom:var(--spacing-4xl);padding-bottom:0}.db-tab-btn{background:transparent;border:none;color:var(--text-secondary);font-size:.875rem;font-weight:500;padding:7px 16px;border-radius:8px;cursor:pointer;transition:background .15s,color .15s;font-family:inherit}.db-tab-btn:hover{background:var(--background-gray);color:var(--text-primary)}.db-tab-btn.active{background:#2563eb14;color:var(--primary-color);font-weight:600}@media(max-width:1200px){.db-main{padding:32px}}@media(max-width:1024px){.db-main{padding:28px 22px}}@media(max-width:768px){.db-main{padding:20px 16px}.db-stats-grid{grid-template-columns:repeat(2,1fr);gap:12px}.db-form-row{grid-template-columns:1fr}.db-actions-grid{grid-template-columns:1fr 1fr}.db-card{padding:20px 16px}.db-page-header{flex-wrap:wrap;gap:14px}}.db-stat-card--blue{background:linear-gradient(135deg,#1e40af,#3b82f6);border-color:transparent}.db-stat-card--green{background:linear-gradient(135deg,#15803d,#22c55e);border-color:transparent}.db-stat-card--amber{background:linear-gradient(135deg,#b45309,#f59e0b);border-color:transparent}.db-stat-card--purple{background:linear-gradient(135deg,#5b21b6,#8b5cf6);border-color:transparent}.db-stat-card--blue:hover,.db-stat-card--green:hover,.db-stat-card--amber:hover,.db-stat-card--purple:hover{border-color:transparent;box-shadow:0 12px 32px #00000038}[class*=db-stat-card--]{flex-direction:column;align-items:flex-start;justify-content:space-between;position:relative;overflow:hidden;gap:0;padding:22px 24px;min-height:110px}[class*=db-stat-card--] .db-stat-body{z-index:1;padding-right:52px}[class*=db-stat-card--] .db-stat-body p{color:#ffffffc7;font-size:.68rem;font-weight:700;text-transform:uppercase;letter-spacing:.1em;margin:0 0 6px}[class*=db-stat-card--] .db-stat-body h3{color:#fff;font-size:2.1rem;font-weight:900;line-height:1;letter-spacing:-.04em;font-family:Outfit,sans-serif}[class*=db-stat-card--] .db-stat-icon{position:absolute;right:14px;top:50%;transform:translateY(-50%);width:60px;height:60px;font-size:1.6rem;background:#ffffff1f;color:#ffffff8c;border-radius:14px;z-index:0;pointer-events:none;flex-shrink:0}.db-lower-grid{display:grid;grid-template-columns:1fr 360px;gap:20px;align-items:start}.db-lower-left,.db-lower-right{display:flex;flex-direction:column;gap:20px}.db-lower-grid .db-card{margin-bottom:0}@media(max-width:1100px){.db-lower-grid{grid-template-columns:1fr}}.db-card,.db-stat-card{box-shadow:0 1px 3px #0000000a,0 4px 14px #0000000d}.db-action-card{box-shadow:0 1px 3px #00000008,0 2px 8px #0000000a}.db-action-card--blue .db-action-icon{background:#2563eb1a;color:#2563eb}.db-action-card--purple .db-action-icon{background:#8b5cf61a;color:#8b5cf6}.db-action-card--green .db-action-icon{background:#16a34a1a;color:#16a34a}.db-action-card--amber .db-action-icon{background:#d977061a;color:#d97706}.db-action-card--blue:hover{border-color:#3b82f6;box-shadow:0 6px 18px #2563eb24}.db-action-card--purple:hover{border-color:#8b5cf6;box-shadow:0 6px 18px #8b5cf624}.db-action-card--green:hover{border-color:#22c55e;box-shadow:0 6px 18px #16a34a24}.db-action-card--amber:hover{border-color:#f59e0b;box-shadow:0 6px 18px #d9770624}.db-activity-dot--quiz{background:#2563eb1a;color:#2563eb}.db-activity-dot--flashcard{background:#8b5cf61a;color:#8b5cf6}.db-activity-dot--clash{background:#d977061a;color:#d97706}.db-activity-dot--material{background:#16a34a1a;color:#16a34a}@media(max-width:480px){.db-page-header{flex-direction:column;align-items:flex-start;gap:14px;margin-bottom:var(--spacing-2xl)}.db-page-header h1{font-size:1.45rem;letter-spacing:-.02em}.db-streak-badge{padding:10px 16px;border-radius:12px;gap:10px}.db-streak-fire{font-size:1.4rem}.db-streak-badge strong{font-size:1.5rem}.db-stats-grid{grid-template-columns:repeat(2,1fr);gap:10px}[class*=db-stat-card--]{padding:14px 16px;min-height:90px}[class*=db-stat-card--] .db-stat-body h3{font-size:1.65rem}[class*=db-stat-card--] .db-stat-icon{width:44px;height:44px;font-size:1.1rem;right:10px}.db-card{padding:16px 14px;margin-bottom:var(--spacing-lg)}.db-card h2{font-size:.95rem}.db-actions-grid{grid-template-columns:repeat(2,1fr);gap:10px}.db-action-card{aspect-ratio:1 / 1;flex-direction:column;justify-content:center;align-items:center;text-align:center;padding:14px 10px;gap:8px}.db-action-card .db-action-icon{width:40px;height:40px;font-size:1rem}.db-action-card h3{font-size:.82rem}.db-action-card p{display:none}.db-activity-item{padding:10px 12px;gap:10px}.db-activity-body p{font-size:.82rem}.db-activity-body span{font-size:.72rem}.db-activity-score{font-size:.78rem;padding:2px 8px}}:root{--spacing-xs: 4px;--spacing-sm: 8px;--spacing-md: 12px;--spacing-lg: 16px;--spacing-xl: 20px;--spacing-2xl: 24px;--spacing-3xl: 28px;--radius-2xl: 14px;--radius-md: 10px;--primary-color: var(--primary, #1E3A8A)}.db-profile-hero{display:flex;align-items:center;gap:var(--spacing-xl);padding:var(--spacing-3xl);background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-2xl);margin-bottom:var(--spacing-2xl)}.db-profile-avatar-xl{width:80px;height:80px;border-radius:50%;background:var(--primary-color);display:flex;align-items:center;justify-content:center;font-size:2rem;font-weight:700;color:#fff;overflow:hidden;flex-shrink:0}.db-profile-avatar-xl img{width:100%;height:100%;object-fit:cover;border-radius:50%}.db-profile-hero-info h2{font-size:1.3rem;font-weight:700;color:var(--text-primary);margin:0 0 var(--spacing-xs)}.db-profile-hero-info p{color:var(--text-secondary);margin:0 0 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14px;cursor:pointer;transition:var(--transition);text-align:left;display:flex;flex-direction:column;gap:4px}.donate-tile:hover{border-color:var(--primary-color)}.donate-tile.active{border-color:var(--primary-color);background:#2563eb12}.tile-amount{font-size:1.05rem;font-weight:700;color:var(--text-primary);transition:var(--transition)}.donate-tile.active .tile-amount{color:var(--primary-color)}.tile-label{font-size:.75rem;color:var(--text-muted);transition:var(--transition)}.donate-tile.active .tile-label{color:var(--primary-color)}.donate-divider{display:flex;align-items:center;gap:12px;color:var(--text-muted);font-size:.78rem;letter-spacing:.04em;text-transform:uppercase;margin:16px 0}.donate-divider:before,.donate-divider:after{content:"";flex:1;height:1px;background:var(--border)}.donate-input-wrap{position:relative;display:flex;align-items:center;margin-bottom:12px}.donate-currency{position:absolute;left:14px;font-size:.9rem;font-weight:600;color:var(--text-muted);pointer-events:none;-webkit-user-select:none;user-select:none}.donate-input-wrap input{width:100%;padding:12px 14px 12px 52px;border-radius:var(--radius-sm);border:1.5px solid var(--border);background:var(--background-gray);color:var(--text-primary);font-size:1rem;font-family:inherit;transition:var(--transition);box-sizing:border-box}.donate-input-wrap input:focus{outline:none;border-color:var(--primary-color);box-shadow:0 0 0 3px #2563eb14}.donate-input-wrap input::placeholder{color:var(--text-muted)}.donate-email-input{width:100%;padding:12px 14px;border-radius:var(--radius-sm);border:1.5px solid var(--border);background:var(--background-gray);color:var(--text-primary);font-size:1rem;font-family:inherit;transition:var(--transition);box-sizing:border-box;margin-bottom:12px}.donate-email-input:focus{outline:none;border-color:var(--primary-color);box-shadow:0 0 0 3px #2563eb14}.donate-email-input::placeholder{color:var(--text-muted)}.donate-error{color:#ef4444;font-size:.85rem;margin:0 0 8px}.donate-btn{width:100%;padding:13px;border-radius:var(--radius-sm);border:none;background:var(--primary-color);color:#fff;font-size:1rem;font-weight:700;cursor:pointer;transition:var(--transition);margin-top:4px;box-shadow:0 4px 14px #2563eb40}.donate-btn:hover:not(:disabled){transform:translateY(-2px);background:var(--primary-dark);box-shadow:0 6px 20px #2563eb59}.donate-btn:disabled{opacity:.6;cursor:not-allowed;transform:none;box-shadow:none}.donate-secure{margin-top:18px;font-size:.78rem;color:var(--text-muted);text-align:center}@media(max-width:900px){.donate-split{grid-template-columns:1fr;min-height:auto}.donate-left{height:320px}.donate-right{border-left:none;border-top:4px solid var(--primary-color);padding:48px 32px}.donate-right-inner{max-width:100%}}@media(max-width:600px){.donate-left{height:240px}.donate-left-body{padding:28px}.donate-left-heading{font-size:1.15rem}.donate-right{padding:36px 20px}.donate-tile-grid{gap:8px}.donate-tile{padding:14px 12px}.tile-amount{font-size:.95rem}}.ty-page{background:var(--background-gray);flex:1 0 auto;display:flex;align-items:center;justify-content:center;padding:100px 40px 80px;min-height:calc(100vh - 70px);margin-top:70px}.ty-center{text-align:center;max-width:520px;width:100%;display:flex;flex-direction:column;align-items:center;gap:16px}.ty-split{display:grid;grid-template-columns:1fr 1fr;gap:80px;align-items:center;max-width:960px;width:100%}.ty-left{display:flex;flex-direction:column;gap:20px}.ty-heading{font-size:clamp(2rem,3.5vw,3rem);font-weight:800;color:var(--text-primary);line-height:1.1;margin:0}.ty-body{color:var(--text-secondary);font-size:1rem;line-height:1.7;margin:0}.ty-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:8px}.ty-actions--center{justify-content:center}.ty-btn-primary{display:inline-block;padding:12px 28px;border-radius:var(--radius-sm);background:var(--primary-color);color:#fff;font-weight:700;font-size:.95rem;text-decoration:none;transition:all .2s ease;box-shadow:0 4px 14px #2563eb40}.ty-btn-primary:hover{transform:translateY(-2px);background:var(--primary-dark);box-shadow:0 6px 20px #2563eb59}.ty-btn-secondary{display:inline-block;padding:12px 28px;border-radius:var(--radius-sm);background:transparent;color:var(--text-secondary);border:1.5px solid var(--border);font-weight:600;font-size:.95rem;text-decoration:none;transition:all .2s ease}.ty-btn-secondary:hover{background:var(--background-gray);border-color:var(--primary-color);color:var(--primary-color)}.ty-right{display:flex;flex-direction:column;gap:32px}.ty-badge{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-xl);padding:40px 32px;text-align:center;box-shadow:var(--shadow-md)}.ty-check{display:block;width:72px;height:72px;line-height:72px;border-radius:50%;background:var(--primary-color);color:#fff;font-size:2rem;font-weight:800;margin:0 auto 20px}.ty-badge-label{font-size:.8rem;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--text-muted);margin:0 0 8px}.ty-badge-amount{font-size:2.2rem;font-weight:800;color:var(--primary-color);margin:0}.ty-perks{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:14px}.ty-perks li{display:flex;align-items:center;gap:12px;color:var(--text-secondary);font-size:.93rem}.ty-perks li:before{content:"";width:8px;height:8px;border-radius:50%;background:var(--primary-color);flex-shrink:0}.ty-status-icon{width:72px;height:72px;border-radius:50%;font-size:1.75rem;font-weight:700;line-height:72px;text-align:center;color:#fff;flex-shrink:0}.ty-status-icon.failed{background:#ef4444}.ty-status-icon.neutral{background:var(--background-gray);color:var(--text-muted)}.ty-ref{display:inline-block;margin-top:8px;padding:4px 10px;background:var(--background-gray);border:1px solid var(--border);border-radius:var(--radius-sm);font-size:.85rem;color:var(--primary-color);font-family:monospace}.ty-spinner{width:44px;height:44px;border:3px solid var(--border);border-top-color:var(--primary-color);border-radius:50%;animation:ty-spin .75s linear infinite}.ty-hint{color:var(--text-muted);font-size:.95rem;margin:0}@keyframes ty-spin{to{transform:rotate(360deg)}}@media(max-width:768px){.ty-page{padding:80px 24px 60px}.ty-split{grid-template-columns:1fr;gap:48px}}@media(max-width:480px){.ty-page{padding:60px 20px 48px}.ty-actions{flex-direction:column}.ty-btn-primary,.ty-btn-secondary{text-align:center}}:root{--clash-blue: #1e3a8a;--clash-blue-mid: #2563eb;--clash-surface: #ffffff;--clash-bg: #f8fafc;--clash-border: #e2e8f0;--clash-text: #0f172a;--clash-muted: #64748b;--clash-subtle: #94a3b8;--clash-red: #dc2626;--clash-green: #16a34a;--clash-gold: #d97706}.clash-kicker{text-transform:uppercase;letter-spacing:.8px;font-size:.75rem;font-weight:700;color:var(--clash-blue-mid);margin:0 0 8px}.clash-page-title{font-size:clamp(1.4rem,2.5vw,1.9rem);font-weight:800;color:var(--clash-text);margin:0 0 6px;letter-spacing:-.3px}.clash-page-sub{color:var(--clash-muted);font-size:.92rem;margin:0 0 28px;line-height:1.5}.clash-btn-primary{width:100%;background:var(--clash-blue);color:#fff;border:none;border-radius:10px;padding:13px 20px;font-size:.95rem;font-weight:700;cursor:pointer;letter-spacing:.1px;transition:background .15s}.clash-btn-primary:hover{background:#172554}.clash-btn-primary:disabled{opacity:.5;cursor:not-allowed}.clash-btn-secondary{flex:1;background:var(--clash-bg);color:var(--clash-text);border:1px solid var(--clash-border);border-radius:10px;padding:13px 20px;font-size:.95rem;font-weight:600;cursor:pointer;transition:border-color .15s,color .15s}.clash-btn-secondary:hover{border-color:var(--clash-blue-mid);color:var(--clash-blue-mid)}.clash-field{margin-bottom:14px}.clash-field label{display:block;font-weight:600;font-size:.83rem;margin-bottom:6px;color:var(--clash-text)}.clash-field input,.clash-field select{width:100%;border:1px solid var(--clash-border);border-radius:8px;padding:10px 12px;font-size:.93rem;background:var(--clash-bg);color:var(--clash-text);box-sizing:border-box;transition:border-color .15s;font-family:inherit}.clash-field input:focus,.clash-field select:focus{outline:none;border-color:var(--clash-blue-mid);box-shadow:0 0 0 3px #2563eb1a}.clash-code-input{text-transform:uppercase;letter-spacing:8px;font-size:1.4rem!important;font-weight:800;text-align:center;font-family:inherit}.clash-error{color:var(--clash-red);font-size:.85rem;margin-top:12px}.clash-loading-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#0f172aa6;display:flex;align-items:center;justify-content:center;z-index:1400;-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px)}.clash-loading-card{background:var(--clash-surface);border-radius:16px;padding:36px 32px;text-align:center;min-width:280px;max-width:380px;box-shadow:0 20px 60px #0003}.clash-loading-card h3{margin:0 0 6px;color:var(--clash-text);font-size:1.1rem}.clash-loading-card p{margin:0;color:var(--clash-muted);font-size:.88rem;line-height:1.5}.clash-spinner{width:36px;height:36px;border:3px solid var(--clash-border);border-top-color:var(--clash-blue-mid);border-radius:50%;animation:clashSpin .75s linear infinite;margin:0 auto 20px}@keyframes clashSpin{to{transform:rotate(360deg)}}.clash-center-screen{min-height:100vh;display:flex;align-items:center;justify-content:center;flex-direction:column;gap:12px;text-align:center;padding:20px}.clash-center-screen .clash-spinner{margin:0 0 8px}.clash-center-screen p{color:var(--clash-muted);font-size:.92rem;margin:0}.clash-countdown-num{font-size:6rem;font-weight:900;color:var(--clash-blue);line-height:1;letter-spacing:-2px;font-variant-numeric:tabular-nums}.clash-countdown-label{color:var(--clash-muted);font-size:1rem;font-weight:500;margin:0}.clash-create-page{max-width:900px;margin:0 auto;padding:96px 24px 80px;min-height:100vh}.clash-hero{background:linear-gradient(135deg,#0f1f5c,#1e3a8a,#1d4ed8);border-radius:16px;padding:36px 40px;margin-bottom:24px;display:flex;align-items:center;justify-content:space-between;gap:24px;overflow:hidden;position:relative;min-height:150px}.clash-hero:before{content:"";position:absolute;top:0;right:0;bottom:0;left:0;background-image:radial-gradient(circle,rgba(255,255,255,.07) 1px,transparent 1px);background-size:22px 22px;pointer-events:none}.clash-hero:after{content:"";position:absolute;right:-60px;bottom:-60px;width:220px;height:220px;background:radial-gradient(circle,rgba(99,152,255,.25) 0%,transparent 70%);pointer-events:none}.clash-hero-text{position:relative;z-index:1}.clash-hero-heading{font-size:clamp(2rem,4vw,3rem);font-weight:900;color:#fff;letter-spacing:-1.5px;margin:0 0 8px;line-height:1}.clash-hero-tagline{color:#fff9;font-size:.9rem;margin:0 0 18px}.clash-hero-stats{display:flex;gap:20px}.clash-hero-stat{display:flex;flex-direction:column;gap:1px}.clash-hero-stat-num{font-size:1.1rem;font-weight:800;color:#fff;line-height:1}.clash-hero-stat-label{font-size:.72rem;color:#ffffff80;text-transform:uppercase;letter-spacing:.5px}.clash-hero-visual{position:relative;z-index:1;display:flex;align-items:center;gap:16px;flex-shrink:0}.clash-hero-player{display:flex;flex-direction:column;align-items:center;gap:8px}.clash-hero-circle{width:60px;height:60px;border-radius:50%;background:#ffffff1a;border:2px solid rgba(255,255,255,.2);display:flex;align-items:center;justify-content:center;font-size:1.6rem}.clash-hero-player-label{font-size:.72rem;color:#ffffff80;font-weight:600;letter-spacing:.5px;text-transform:uppercase}.clash-hero-vs-badge{font-size:1rem;font-weight:900;color:#fff;letter-spacing:2px;background:#ffffff1a;border:1px solid rgba(255,255,255,.2);border-radius:8px;padding:8px 14px}.clash-tab-toggle{display:flex;background:var(--clash-border);border-radius:10px;padding:4px;gap:4px;margin-bottom:16px;width:fit-content}.clash-tab-btn{flex:1;padding:9px 28px;border:none;border-radius:7px;background:transparent;color:var(--clash-muted);font-size:.9rem;font-weight:600;cursor:pointer;transition:background .15s,color .15s;white-space:nowrap}.clash-tab-btn.active{background:var(--clash-surface);color:var(--clash-text);box-shadow:0 1px 3px #0000001a}.clash-panels{display:grid;grid-template-columns:1.1fr .9fr;gap:16px;align-items:stretch}.clash-panel{background:var(--clash-surface);border:1px solid var(--clash-border);border-radius:14px;padding:28px 24px;display:flex;flex-direction:column}.clash-panel-single{width:100%}.clash-source-tab-group{display:flex;gap:0;border-bottom:2px solid var(--clash-border);background:var(--clash-bg);border-radius:10px 10px 0 0;overflow:hidden;margin-top:4px}.clash-source-tab{flex:1;text-align:center;color:var(--clash-muted);background:none;border:none;font-size:.9rem;font-weight:600;padding:11px 0 9px;cursor:pointer;border-bottom:3px solid transparent;transition:color .15s,border-color .15s,background .15s;font-family:inherit}.clash-source-tab.active{color:var(--clash-blue-mid);border-bottom:3px solid var(--clash-blue-mid);background:var(--clash-surface);font-weight:700}.clash-source-tab:not(.active):hover{color:var(--clash-blue-mid);background:#2563eb0d}@keyframes clashSlideIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.clash-source-content{background:var(--clash-surface);border:1px solid var(--clash-border);border-top:none;border-radius:0 0 10px 10px;padding:20px;margin-bottom:18px}.clash-source-slide-in{animation:clashSlideIn .22s ease}.clash-upload-zone{border:2px dashed var(--clash-border);border-radius:10px;padding:36px 18px;text-align:center;background:var(--clash-bg);transition:border-color .15s,background .15s;cursor:pointer}.clash-upload-zone:hover{border-color:var(--clash-blue-mid);background:#2563eb08}.clash-hidden-file-input{display:none}.clash-upload-icon{font-size:1.5rem;font-weight:800;color:var(--clash-blue-mid);margin-bottom:10px}.clash-upload-text{font-size:1rem;font-weight:700;color:var(--clash-text);margin-bottom:4px}.clash-upload-desc{font-size:.85rem;color:var(--clash-muted);margin-bottom:14px}.clash-select-file-btn{background:var(--clash-blue);color:#fff;border:none;border-radius:8px;padding:9px 22px;font-size:.9rem;font-weight:700;cursor:pointer;display:inline-block;font-family:inherit;transition:background .15s}.clash-select-file-btn:hover{background:var(--clash-blue-mid)}.clash-file-name-display{display:block;margin:12px 0 0;font-size:.85rem;font-weight:600;color:var(--clash-text);padding:8px 12px;background:#2563eb12;border:1px solid rgba(37,99,235,.2);border-radius:8px}.clash-source-textarea{width:100%;min-height:180px;background:var(--clash-bg);color:var(--clash-text);border:1px solid var(--clash-border);border-radius:8px;padding:14px;font-size:.92rem;resize:vertical;line-height:1.6;font-family:inherit;box-sizing:border-box;transition:border-color .15s,box-shadow .15s}.clash-source-textarea:focus{outline:none;border-color:var(--clash-blue-mid);background:var(--clash-surface);box-shadow:0 0 0 3px #2563eb1a}.clash-char-count{text-align:right;font-size:.75rem;color:var(--clash-subtle);margin-top:6px}.clash-panel-title{font-size:1rem;font-weight:700;color:var(--clash-text);margin:0 0 4px}.clash-panel-sub{font-size:.85rem;color:var(--clash-muted);margin:0 0 22px;line-height:1.45}.clash-panel .clash-btn-primary{margin-top:auto}.clash-fields-row{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}@media(max-width:540px){.clash-fields-row{grid-template-columns:1fr 1fr}}.clash-join-code-wrap{flex:1;display:flex;flex-direction:column;justify-content:center;align-items:center;background:var(--clash-bg);border:1px solid var(--clash-border);border-radius:10px;padding:24px 16px;margin-bottom:16px;gap:10px}.clash-join-code-hint{font-size:.8rem;color:var(--clash-muted);text-align:center;margin:0}.clash-join-code-wrap .clash-code-input{background:transparent;border:none;border-bottom:2px solid var(--clash-border);border-radius:0;padding:8px 4px;width:100%;text-align:center;font-size:2rem!important;letter-spacing:14px;box-shadow:none}.clash-join-code-wrap .clash-code-input:focus{border-bottom-color:var(--clash-blue-mid);box-shadow:none;outline:none}.clash-lobby-page{max-width:1100px;margin:0 auto;padding:96px 32px 80px;min-height:100vh}.clash-lobby-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px;align-items:start}.clash-lobby-left{display:flex;flex-direction:column;gap:0}.clash-lobby-left>*{margin-bottom:16px}.clash-lobby-left>*:last-child{margin-bottom:0}.clash-room-code-card{background:var(--clash-blue);border-radius:14px;padding:22px 24px;margin-bottom:16px;display:flex;align-items:center;justify-content:space-between;gap:16px}.clash-room-code-label{color:#ffffffa6;font-size:.72rem;font-weight:700;text-transform:uppercase;letter-spacing:1px;margin-bottom:4px}.clash-room-code-value{color:#fff;font-size:2rem;font-weight:900;letter-spacing:10px;font-variant-numeric:tabular-nums;line-height:1}.clash-copy-btn{background:#ffffff1f;border:1px solid rgba(255,255,255,.25);color:#fff;border-radius:8px;padding:9px 16px;font-size:.83rem;font-weight:600;cursor:pointer;white-space:nowrap;transition:background .15s}.clash-copy-btn:hover{background:#ffffff38}.clash-room-code-actions{display:flex;flex-direction:column;gap:8px}.clash-lobby-meta{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:16px}.clash-meta-pill{background:var(--clash-bg);border:1px solid var(--clash-border);border-radius:6px;padding:5px 12px;font-size:.8rem;font-weight:600;color:var(--clash-text)}.clash-participants-card{background:var(--clash-surface);border:1px solid var(--clash-border);border-radius:14px;padding:20px;margin-bottom:16px}.clash-participants-header{display:flex;align-items:baseline;justify-content:space-between;margin-bottom:14px}.clash-participants-header h3{margin:0;font-size:.9rem;font-weight:700;color:var(--clash-text)}.clash-participants-count{font-size:.8rem;color:var(--clash-muted);font-weight:500}.clash-participant-list{display:flex;flex-direction:column;gap:6px}.clash-participant-row{display:flex;align-items:center;gap:10px;padding:9px 12px;background:var(--clash-bg);border-radius:8px;border:1px solid var(--clash-border)}.clash-participant-avatar{width:30px;height:30px;background:var(--clash-blue);color:#fff;border-radius:50%;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:.8rem;flex-shrink:0}.clash-participant-name{flex:1;font-weight:600;font-size:.9rem;color:var(--clash-text)}.clash-you-tag{font-size:.72rem;color:var(--clash-muted);font-weight:400}.clash-host-badge{font-size:.7rem;font-weight:700;background:#2563eb14;color:var(--clash-blue-mid);border:1px solid rgba(37,99,235,.15);border-radius:4px;padding:2px 8px;text-transform:uppercase;letter-spacing:.5px}.clash-lobby-empty{color:var(--clash-subtle);font-size:.88rem;margin:0;text-align:center;padding:8px 0}.clash-lobby-actions{display:flex;flex-direction:column;gap:8px}.clash-lobby-status{text-align:center;color:var(--clash-muted);font-size:.88rem;padding:14px;background:var(--clash-bg);border:1px solid var(--clash-border);border-radius:10px}.clash-play-page{max-width:1200px;margin:0 auto;padding:80px 24px 60px;min-height:100vh}.clash-timer-row{display:flex;align-items:center;gap:12px;margin-bottom:10px}.clash-timer-bar-wrap{flex:1;border-radius:6px;overflow:hidden;background:#f1f5f9;height:8px;border:1px solid var(--clash-border)}.clash-timer-bar-fill{height:100%;background:var(--clash-blue-mid);transition:width .4s linear,background-color .4s;border-radius:6px}.clash-timer-bar-fill.warning{background:var(--clash-gold)}.clash-timer-bar-fill.danger{background:var(--clash-red)}.clash-timer-num{font-size:1rem;font-weight:800;font-variant-numeric:tabular-nums;color:var(--clash-blue);min-width:32px;text-align:right}.clash-timer-num.warning{color:var(--clash-gold)}.clash-timer-num.danger{color:var(--clash-red)}.clash-progress-label{font-size:.8rem;color:var(--clash-muted);font-weight:600;margin:0 0 14px}.clash-play-layout{display:grid;grid-template-columns:1fr 236px;gap:16px;align-items:start}.clash-play-main{min-width:0}.clash-question-card{background:#f0f6fb;border:1px solid #d0e4f4;border-radius:12px;padding:22px 20px;margin-bottom:12px}.clash-question-text{font-size:clamp(.97rem,1.6vw,1.1rem);color:var(--clash-text);line-height:1.65;margin:0;font-weight:500}.clash-options-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-bottom:12px}.clash-option-btn{border:1px solid var(--clash-border);background:var(--clash-surface);border-radius:10px;padding:14px;text-align:left;cursor:pointer;font-size:.88rem;color:var(--clash-text);font-weight:500;display:flex;gap:10px;align-items:flex-start;min-height:58px;transition:border-color .12s,background .12s;font-family:inherit;line-height:1.4}.clash-option-btn:hover:not(:disabled){border-color:var(--clash-blue-mid);background:#2563eb0a}.clash-option-btn:disabled{cursor:default}.clash-option-btn.selected{border-color:var(--clash-blue);background:#2563eb12}.clash-option-btn.correct{border-color:var(--clash-green);background:#16a34a12;color:var(--clash-green)}.clash-option-btn.incorrect{border-color:var(--clash-red);background:#dc26260d;color:var(--clash-red);text-decoration:line-through;text-decoration-color:#dc262666}.clash-option-letter{font-weight:800;color:var(--clash-blue-mid);min-width:18px;font-size:.8rem;margin-top:1px;flex-shrink:0}.clash-option-btn.correct .clash-option-letter{color:var(--clash-green)}.clash-option-btn.incorrect .clash-option-letter{color:var(--clash-red)}.clash-answer-feedback{border-radius:8px;padding:12px 16px;margin-bottom:10px;display:flex;align-items:center;justify-content:space-between;gap:8px}.clash-answer-feedback.correct{background:#16a34a14;border:1px solid rgba(22,163,74,.25)}.clash-answer-feedback.incorrect{background:#dc26260f;border:1px solid rgba(220,38,38,.18)}.clash-feedback-verdict{font-weight:700;font-size:.9rem}.clash-answer-feedback.correct .clash-feedback-verdict{color:var(--clash-green)}.clash-answer-feedback.incorrect .clash-feedback-verdict{color:var(--clash-red)}.clash-feedback-score{font-size:.83rem;color:var(--clash-muted);font-weight:500}.clash-explanation{background:var(--clash-bg);border:1px solid var(--clash-border);border-radius:8px;padding:12px 16px;font-size:.87rem;color:var(--clash-muted);line-height:1.6;margin-bottom:10px}.clash-explanation strong{color:var(--clash-text);font-weight:700}.clash-waiting-answers{font-size:.83rem;color:var(--clash-subtle);margin:4px 0 10px;text-align:center}.clash-play-sidebar{position:sticky;top:88px}.clash-mini-leaderboard{background:var(--clash-surface);border:1px solid var(--clash-border);border-radius:12px;padding:16px}.clash-mini-leaderboard-title{font-size:.72rem;font-weight:700;text-transform:uppercase;letter-spacing:.8px;color:var(--clash-muted);margin:0 0 12px}.clash-mini-row{display:flex;align-items:center;gap:9px;padding:7px 0}.clash-mini-row+.clash-mini-row{border-top:1px solid var(--clash-border)}.clash-mini-row-divider{border-top:1px dashed var(--clash-border);margin:4px 0}.clash-rank-badge{width:24px;height:24px;border-radius:50%;background:var(--clash-bg);border:1px solid var(--clash-border);display:flex;align-items:center;justify-content:center;font-weight:800;font-size:.72rem;flex-shrink:0;color:var(--clash-text)}.clash-rank-badge.gold{background:#fef3c7;border-color:#fbbf24;color:#92400e}.clash-rank-badge.silver{background:#f1f5f9;border-color:#94a3b8;color:#475569}.clash-rank-badge.bronze{background:#fef7ed;border-color:#fb923c;color:#9a3412}.clash-mini-name{flex:1;font-weight:600;color:var(--clash-text);font-size:.85rem;min-width:0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.clash-mini-you-tag{font-size:.68rem;background:#2563eb14;color:var(--clash-blue-mid);border-radius:4px;padding:1px 5px;font-weight:700;flex-shrink:0}.clash-mini-score{font-weight:800;color:var(--clash-blue);font-size:.85rem;font-variant-numeric:tabular-nums;flex-shrink:0}.clash-mini-empty{color:var(--clash-subtle);font-size:.82rem;text-align:center;padding:8px 0;margin:0}.clash-results-page{max-width:1100px;margin:0 auto;padding:96px 32px 80px;min-height:100vh}.clash-results-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px;align-items:start}.clash-results-left{display:flex;flex-direction:column;gap:0}.clash-results-left>*{margin-bottom:20px}.clash-results-left>*:last-child{margin-bottom:0}.clash-my-result-card{background:var(--clash-bg);border:1px solid var(--clash-border);border-radius:12px;padding:16px 20px;margin-bottom:20px;display:flex;align-items:center;gap:16px}.clash-my-result-card.top{background:#1e3a8a0a;border-color:#2563eb33}.clash-my-result-rank{font-size:2rem;line-height:1;min-width:40px;text-align:center}.clash-my-result-label{font-weight:700;font-size:.95rem;color:var(--clash-text);margin:0 0 2px}.clash-my-result-score{font-size:.83rem;color:var(--clash-muted);margin:0}.clash-podium{display:flex;align-items:flex-end;justify-content:center;gap:6px;margin-bottom:28px}.clash-podium-slot{display:flex;flex-direction:column;align-items:center}.clash-podium-info{display:flex;flex-direction:column;align-items:center;gap:4px;padding-bottom:10px}.clash-podium-avatar{width:44px;height:44px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-weight:800;font-size:1rem;color:#fff;flex-shrink:0}.clash-podium-avatar.gold{background:#d97706;width:54px;height:54px;font-size:1.2rem}.clash-podium-avatar.silver{background:#64748b}.clash-podium-avatar.bronze{background:#a16207}.clash-podium-name{font-size:.78rem;font-weight:700;color:var(--clash-text);text-align:center;max-width:90px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.clash-podium-pts{font-size:.72rem;color:var(--clash-muted);font-weight:500}.clash-podium-block{width:96px;border-radius:6px 6px 0 0;display:flex;align-items:center;justify-content:center;font-weight:900;font-size:1.5rem;color:#fff9}.clash-podium-block.gold{background:#d97706;height:80px;width:108px}.clash-podium-block.silver{background:#64748b;height:58px}.clash-podium-block.bronze{background:#a16207;height:40px}.clash-rankings-card{background:var(--clash-surface);border:1px solid var(--clash-border);border-radius:14px;padding:20px;margin-bottom:20px}.clash-rankings-card h3{margin:0 0 16px;font-size:.88rem;font-weight:700;text-transform:uppercase;letter-spacing:.6px;color:var(--clash-muted)}.clash-ranking-row{display:flex;align-items:center;gap:12px;padding:10px 0}.clash-ranking-row+.clash-ranking-row{border-top:1px solid var(--clash-border)}.clash-ranking-row.is-me{background:#2563eb0a;border-radius:8px;padding:10px;margin:2px -10px}.clash-ranking-num{width:26px;font-size:.82rem;font-weight:700;color:var(--clash-subtle);text-align:center;flex-shrink:0}.clash-ranking-num.top{color:var(--clash-gold);font-size:1rem}.clash-ranking-avatar{width:32px;height:32px;border-radius:50%;background:var(--clash-blue);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:.8rem;flex-shrink:0}.clash-ranking-info{flex:1;min-width:0}.clash-ranking-name{font-weight:700;font-size:.9rem;color:var(--clash-text);display:flex;align-items:center;gap:6px}.clash-you-inline{font-size:.7rem;background:#2563eb14;color:var(--clash-blue-mid);border-radius:4px;padding:1px 6px;font-weight:700}.clash-host-inline{font-size:.7rem;color:var(--clash-subtle);font-weight:500}.clash-ranking-detail{font-size:.78rem;color:var(--clash-muted);margin-top:1px}.clash-ranking-score{font-weight:800;font-size:1rem;color:var(--clash-blue);font-variant-numeric:tabular-nums}.clash-results-actions{display:flex;gap:10px}.clash-results-actions .clash-btn-primary{flex:1;width:auto}@media(max-width:860px){.clash-lobby-grid,.clash-results-grid{grid-template-columns:1fr}}@media(max-width:720px){.clash-hero{flex-direction:column;padding:28px 20px;min-height:auto;gap:20px}.clash-hero-stats{gap:16px}.clash-panels,.clash-play-layout{grid-template-columns:1fr}.clash-play-sidebar{position:static}.clash-create-page,.clash-lobby-page,.clash-results-page{padding:80px 16px 60px}.clash-play-page{padding:72px 16px 60px}.clash-room-code-value{font-size:1.6rem;letter-spacing:6px}.clash-countdown-num{font-size:4rem}.clash-podium-block.gold{width:86px}.clash-podium-block.silver{width:80px}.clash-podium-block.bronze{width:74px}}@media(max-width:480px){.clash-options-grid{grid-template-columns:1fr}}