:root{--primary-color:#030a8c;--secondary-color:#1e40af;--tertiary-color:#b6b6b6;--success-color:#10b981;--error-color:#ef4444;--text-color:#1f2937;--background-color:#f9fafb;--card-background:#fff;--border-color:#e5e7eb;--shadow:0 1px 3px #0000001a;--shadow-lg:0 10px 15px #0000001a}[data-theme=dark]{--primary-color:#1d9dff;--secondary-color:#030a8c;--success-color:#10b981;--error-color:#f87171;--text-color:#e5e7eb;--background-color:#111827;--card-background:#1f2937;--border-color:#374151;--shadow:0 1px 3px #0000004d;--shadow-lg:0 10px 15px #0000004d}*{box-sizing:border-box;margin:0;padding:0}body{background-color:var(--background-color);color:var(--text-color);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,sans-serif;line-height:1.6}.container{max-width:1200px;margin:0 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0}.overlay{z-index:1000;color:#fff;background:#000000b3;flex-direction:column;justify-content:center;align-items:center;width:100%;height:100%;display:flex;position:fixed;top:0;left:0}.spinner{border:4px solid #ffffff4d;border-top-color:#fff;border-radius:50%;width:50px;height:50px;margin-bottom:20px;animation:1s linear infinite spin}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.modal{z-index:1001;background:#00000080;justify-content:center;align-items:center;width:100%;height:100%;display:flex;position:fixed;top:0;left:0}.modal-content{width:90%;max-width:500px;box-shadow:var(--shadow-lg);background:#fff;border-radius:10px;padding:30px;position:relative}.modal-content h3{margin-bottom:15px}.modal-content p{margin-bottom:20px;line-height:1.6}.close{color:#9ca3af;cursor:pointer;font-size:28px;font-weight:700;position:absolute;top:10px;right:15px}.close:hover{color:var(--text-color)}@media (max-width:768px){header h1{font-size:2em}.hero h2{font-size:1.5em}.credit-options,.tools-grid{grid-template-columns:1fr}.uuid-input-group{flex-direction:column}}.tool-container{max-width:800px;margin:0 auto;padding:20px}.back-button{background:#6b7280;margin-bottom:20px}.back-button:hover{background:#4b5563}.tool-content{background:var(--card-background);box-shadow:var(--shadow);border-radius:10px;padding:30px}.tool-content h2{color:var(--primary-color);margin-bottom:20px}.tool-content .description{color:#6b7280;background:var(--background-color);border-left:4px solid var(--primary-color);border-radius:4px;margin-bottom:30px;padding:15px}.form-group input,.form-group textarea,.form-group select{border:2px solid var(--border-color);border-radius:5px;width:100%;padding:12px;font-family:inherit;font-size:1em}.form-group textarea{resize:vertical;min-height:150px}.result-area{background:var(--background-color);border:1px solid var(--border-color);border-radius:8px;margin-top:30px;padding:20px}.result-area 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var(--border-color);border-radius:5px;width:100%;padding:12px;font-family:inherit;font-size:1em;transition:border-color .2s}.form-group input:focus,.form-group textarea:focus,.form-group select:focus{border-color:var(--primary-color);outline:none}.form-group small{color:#6b7280;margin-top:5px;font-size:.85em;display:block}.form-footer{text-align:right;margin-bottom:20px}.form-footer a{color:var(--primary-color);cursor:pointer;font-size:.9em;text-decoration:none}.form-footer a:hover{text-decoration:underline}.auth-footer{text-align:center;color:#6b7280;margin-top:20px}.auth-footer a,.link-button{color:var(--primary-color);cursor:pointer;font-weight:600;font:inherit;background:0 0;border:none;padding:0;text-decoration:none}.auth-footer a:hover,.link-button:hover{background:0 0;transform:scale(1.05)}.auth-footer a:hover,.btn-primary{background:var(--primary-color);color:#fff;cursor:pointer;border:none;border-radius:5px;width:auto;padding:12px 30px;font-size:1em;font-weight:600;transition:background .2s,transform .1s}.btn-primary:hover:not(:disabled){background:var(--secondary-color);transform:scale(1.02)}.btn-primary:disabled{opacity:.6;cursor:not-allowed}.btn-full{width:100%}.success-icon{text-align:center;color:var(--success-color);margin-bottom:20px;font-size:4em}.error-icon{text-align:center;color:var(--error-color);margin-bottom:20px;font-size:4em}.header-actions{justify-content:center;align-items:center;gap:10px;margin-top:20px;display:flex}.user-email{color:#fff;font-weight:500}.btn-secondary{color:var(--primary-color);cursor:pointer;background:#fff;border:none;border-radius:5px;padding:10px 20px;font-size:.9em;font-weight:600;transition:background .2s}.btn-secondary:hover{background:#f3f4f6}.balance-section{text-align:center}.balance-card{background:linear-gradient(135deg,var(--primary-color),var(--secondary-color));color:#fff;box-shadow:var(--shadow-lg);border-radius:10px;flex-direction:column;align-items:center;padding:40px;display:flex}.balance-card h2{color:#fff;margin-bottom:10px;font-size:1.8em}.balance-amount{margin:8px 0;font-size:3em;font-weight:700}.balance-amount-dashboard{background:var(--background-color);color:var(--primary-color);border-radius:20px;gap:0;margin:0;padding:8px 20px;font-size:3em;font-weight:700;display:inline-block}[data-theme=dark] .balance-amount-dashboard{background-color:var(--card-background)}.transactions-section{margin-top:40px}.transactions-list{flex-direction:column;gap:10px;margin-top:20px;display:flex}.transaction-item{background:var(--background-color);border:1px solid var(--border-color);border-radius:8px;justify-content:space-between;align-items:center;padding:15px;display:flex}.transaction-info{flex-direction:column;gap:5px;display:flex}.transaction-type{text-transform:capitalize;font-weight:600}.transaction-date{color:#6b7280;font-size:.85em}.transaction-amount{font-size:1.1em;font-weight:700}.transaction-amount.positive{color:var(--success-color)}.transaction-amount.negative{color:var(--error-color)}.account-container{background:var(--card-background);max-width:800px;box-shadow:var(--shadow);border-radius:10px;margin:0 auto;overflow:hidden}.tabs{border-bottom:2px solid var(--border-color);display:flex}.tab{cursor:pointer;color:#6b7280;background:0 0;border:none;border-bottom:3px solid #0000;flex:1;padding:15px 20px;font-weight:600;transition:all .2s}.tab:hover{background:var(--background-color)}.tab.active{color:var(--primary-color);border-bottom-color:var(--primary-color);background:0 0}.tab-content{padding:40px}.profile-info{flex-direction:column;gap:20px;display:flex}.info-row{background:var(--background-color);border-radius:8px;justify-content:space-between;align-items:center;gap:20px;padding:15px;display:flex}.info-row label{color:var(--text-color);font-weight:600}.badge-warning{color:#92400e;background:#fef3c7;border-radius:12px;padding:3px 10px;font-size:.85em;font-weight:600}.info-text{color:#6b7280;background:#fef3c7;border-left:4px solid #f59e0b;border-radius:4px;margin-bottom:20px;padding:15px}.button-group{gap:10px;margin-top:20px;display:flex}.btn-large{padding:15px 40px;font-size:1.1em}.features-section{background:var(--card-background)}.features-section h3{text-align:center;color:var(--primary-color)}@media (max-width:768px){.auth-card{padding:30px 20px}.header-actions{flex-direction:column}.balance-amount{font-size:2em}.tabs{flex-direction:column}.tab-content{padding:20px}.cta-section>div{flex-direction:column!important}}.main-header{background:var(--card-background);border-bottom:1px solid var(--border-color);box-shadow:var(--shadow);z-index:100;position:sticky;top:0}.header-content{justify-content:space-between;align-items:center;gap:20px;max-width:1400px;margin:0 auto;padding:15px 20px;display:flex}.header-left{align-items:center;display:flex}.header-logo{cursor:pointer;height:45px;transition:opacity .2s}.header-logo:hover{opacity:.8}.header-nav{align-items:center;gap:10px;display:flex}.nav-btn{color:var(--text-color);cursor:pointer;background:0 0;border:none;border-radius:5px;padding:10px 18px;font-size:.95em;font-weight:500;transition:all .2s}.nav-btn:hover{background:var(--tertiary-color);transform:none}[data-theme=dark] .nav-btn:hover{background:var(--background-color)}.nav-btn.active{background:var(--primary-color);color:#fff}.header-right{align-items:center;gap:15px;display:flex}.credit-balance{background:var(--background-color);border-radius:20px;align-items:center;gap:8px;padding:0 16px;font-weight:600;display:flex}.balance-label{color:var(--text-color);font-size:.9em}.balance-amount{color:var(--primary-color);font-size:1.1em}.theme-toggle{background:var(--background-color);border:1px solid var(--border-color);cursor:pointer;border-radius:50%;justify-content:center;align-items:center;width:40px;height:40px;font-size:1.2em;transition:all .2s;display:flex}.theme-toggle:hover{background:var(--card-background);transform:scale(1.1)}.main-footer{background:var(--card-background);border-top:1px solid var(--border-color);text-align:center;margin-top:60px;padding:40px 20px}.main-footer p{color:var(--text-color);margin:8px 0;line-height:1.6}.main-footer p:first-child{font-size:1.05em;font-weight:600}.page-container{max-width:1200px;min-height:calc(100vh - 300px);margin:0 auto;padding:40px 20px}.page-title,.welcome-heading{text-align:center;color:var(--primary-color);margin-bottom:30px;font-size:2.2em}.home-page{padding:60px 20px}.home-hero{text-align:center;background:linear-gradient(135deg,var(--primary-color),var(--secondary-color));color:#fff;border-radius:15px;margin-bottom:50px;padding:60px 20px}.home-hero h1{margin-bottom:20px;font-size:3em}.hero-actions{justify-content:center;gap:15px;margin-top:30px;display:flex}.credits-page{max-width:900px;margin:0 auto}.credits-page h1{text-align:center;color:var(--primary-color);margin-bottom:15px;font-size:2.5em}.page-subtitle{text-align:center;color:var(--text-color);opacity:.8;margin-bottom:40px;font-size:1.1em}.credits-purchase-card{background:var(--card-background);box-shadow:var(--shadow-lg);border-radius:15px;margin-bottom:40px;padding:40px}.credits-purchase-card h2{text-align:center;color:var(--primary-color);margin-bottom:30px}.quantity-selector{justify-content:center;align-items:center;gap:20px;margin-bottom:30px;display:flex}.quantity-btn{background:var(--primary-color);color:#fff;cursor:pointer;border:none;border-radius:8px;justify-content:center;align-items:center;width:50px;height:50px;font-size:1.5em;transition:all .2s;display:flex}.quantity-btn:hover{background:var(--secondary-color)}.quantity-input{text-align:center;border:2px solid var(--border-color);width:120px;height:50px;color:var(--text-color);background:var(--card-background);border-radius:8px;font-size:1.5em;font-weight:700}.quick-select{margin-bottom:30px}.quick-select p{text-align:center;color:var(--text-color);margin-bottom:15px;font-weight:600}.quick-buttons{flex-wrap:wrap;justify-content:center;gap:10px;display:flex}.quick-btn{background:var(--background-color);color:var(--text-color);border:2px solid var(--border-color);cursor:pointer;border-radius:8px;padding:10px 20px;font-weight:500;transition:all .2s}.quick-btn:hover{border-color:var(--primary-color);background:var(--card-background);transform:translateY(-2px)}.quick-btn.popular{border-color:var(--primary-color);background:linear-gradient(135deg,#eff6ff,#dbeafe)}[data-theme=dark] .quick-btn.popular{color:#fff;background:linear-gradient(135deg,#1e3a8a,#1e40af)}.price-display{background:var(--background-color);border-radius:10px;margin-bottom:25px;padding:25px}.price-row{color:var(--text-color);justify-content:space-between;align-items:center;padding:10px 0;display:flex}.price-row.total{border-top:2px solid var(--border-color);margin-top:10px;padding-top:15px;font-size:1.2em;font-weight:700}.price-value{color:var(--primary-color);font-weight:700}.btn-purchase{background:var(--primary-color);color:#fff;cursor:pointer;border:none;border-radius:8px;width:100%;padding:18px;font-size:1.2em;font-weight:600;transition:all .2s}.btn-purchase:hover{background:var(--secondary-color);box-shadow:var(--shadow-lg);transform:translateY(-2px)}.btn-buy-credits{color:var(--primary-color);background:#fff;border:2px solid #fff;margin-top:20px}[data-theme=dark] .btn-buy-credits{background:var(--card-background);border-color:var(--primary-color)}.btn-buy-credits:hover{background:var(--background-color);transform:scale(1.05)}@media (max-width:768px){.header-content{flex-direction:column;padding:10px 15px}.header-nav{flex-wrap:wrap;justify-content:center}.nav-btn{padding:8px 12px;font-size:.85em}.header-right{justify-content:center;width:100%}.home-hero h1{font-size:2em}.hero-actions{flex-direction:column;align-items:center}.credits-purchase-card{padding:25px 15px}}.auth-header{background:var(--card-background);border-bottom:1px solid var(--border-color);justify-content:space-between;align-items:center;padding:20px 40px;display:flex}.auth-logo{cursor:pointer;height:45px;transition:opacity .2s}.auth-logo:hover{opacity:.8}.tab-danger{color:var(--error-color)!important}.tab-danger:hover{background:#fee2e2!important}[data-theme=dark] .tab-danger:hover{background:#ef444433!important}.tab-danger.active{border-bottom-color:var(--error-color)!important;color:var(--error-color)!important}.danger-heading{color:var(--error-color)!important}.danger-warning{border:1px solid var(--error-color);background:#fee2e2;border-radius:8px;align-items:flex-start;gap:15px;margin-bottom:25px;padding:20px;display:flex}[data-theme=dark] .danger-warning{background:#ef44441a}.danger-warning .warning-icon{flex-shrink:0;font-size:2em}.danger-warning strong{color:#991b1b;margin-bottom:8px;display:block}[data-theme=dark] .danger-warning strong{color:#fca5a5}.danger-warning p{color:#991b1b;margin:0;line-height:1.5}[data-theme=dark] .danger-warning p{color:#fecaca}.delete-action{text-align:center;padding:20px 0}.delete-action p{color:var(--text-color);margin-bottom:20px}.btn-danger{background:var(--error-color);color:#fff;cursor:pointer;border:none;border-radius:5px;padding:12px 30px;font-size:1em;font-weight:600;transition:background .2s,transform .1s}.btn-danger:hover:not(:disabled){background:#dc2626;transform:scale(1.02)}.btn-danger:disabled{opacity:.6;cursor:not-allowed}.delete-confirm-section{border:2px solid var(--error-color);background:#fef2f2;border-radius:8px;padding:25px}[data-theme=dark] .delete-confirm-section{background:#ef44440d}.delete-confirm-section h3{color:var(--error-color);margin-bottom:15px}.delete-confirm-section p{color:var(--text-color);margin-bottom:20px}