:root{--font-primary: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;--bg-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);--bg-secondary: rgba(255, 255, 255, .25);--text-primary: #1a1a2e;--text-secondary: #4a4a6a;--text-muted: #8888a0;--glass-bg: rgba(255, 255, 255, .25);--glass-border: rgba(255, 255, 255, .35);--glass-shadow: 0 8px 32px rgba(0, 0, 0, .1);--accent-color: #667eea;--accent-hover: #5a6fd6;--success-color: #10b981;--warning-color: #f59e0b;--error-color: #ef4444;--input-bg: rgba(255, 255, 255, .5);--input-border: rgba(255, 255, 255, .3);--input-focus: rgba(102, 126, 234, .5);--btn-primary-bg: linear-gradient(135deg, #667eea 0%, #764ba2 100%);--btn-primary-hover: linear-gradient(135deg, #5a6fd6 0%, #6a4190 100%);--btn-secondary-bg: rgba(255, 255, 255, .3);--btn-secondary-hover: rgba(255, 255, 255, .4);--progress-bg: rgba(0, 0, 0, .1);--progress-fill: linear-gradient(90deg, #667eea, #764ba2);--history-bg: rgba(255, 255, 255, .15)}[data-theme=dark]{--bg-primary: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);--bg-secondary: rgba(255, 255, 255, .05);--text-primary: #ffffff;--text-secondary: #b8b8d0;--text-muted: #6b6b8a;--glass-bg: rgba(255, 255, 255, .08);--glass-border: rgba(255, 255, 255, .15);--glass-shadow: 0 8px 32px rgba(0, 0, 0, .3);--accent-color: #818cf8;--accent-hover: #6366f1;--input-bg: rgba(255, 255, 255, .08);--input-border: rgba(255, 255, 255, .1);--input-focus: rgba(129, 140, 248, .3);--btn-primary-bg: linear-gradient(135deg, #818cf8 0%, #6366f1 100%);--btn-primary-hover: linear-gradient(135deg, #6366f1 0%, #4f46e5 100%);--btn-secondary-bg: rgba(255, 255, 255, .1);--btn-secondary-hover: rgba(255, 255, 255, .15);--progress-bg: rgba(255, 255, 255, .1);--progress-fill: linear-gradient(90deg, #818cf8, #6366f1);--history-bg: rgba(255, 255, 255, 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1rem;font-size:1.1rem;font-weight:500;background:var(--input-bg);border:2px solid var(--input-border);border-radius:12px;color:var(--text-primary);transition:all .3s ease;outline:none}.input-group input:focus{border-color:var(--accent-color);box-shadow:0 0 0 4px var(--input-focus)}.input-group input::placeholder{color:var(--text-muted)}.input-group input::-webkit-outer-spin-button,.input-group input::-webkit-inner-spin-button{-webkit-appearance:none;margin:0}.input-group input[type=number]{-moz-appearance:textfield}.range-separator{padding-bottom:.85rem;font-weight:600;color:var(--text-muted)}.validation-message{min-height:1.5rem;font-size:.85rem;color:var(--error-color);text-align:center;margin-bottom:.5rem;transition:all .3s ease}.validation-message.success{color:var(--success-color)}.progress-section{margin-bottom:1.5rem}.progress-bar{width:100%;height:8px;background:var(--progress-bg);border-radius:4px;overflow:hidden;margin-bottom:.5rem}.progress-fill{height:100%;background:var(--progress-fill);border-radius:4px;width:0%;transition:width .5s ease}.progress-stats{text-align:center;font-size:.9rem;color:var(--text-secondary)}.progress-stats span{font-weight:700;color:var(--accent-color)}.display-section{position:relative;display:flex;align-items:center;justify-content:center;margin-bottom:1.5rem}.number-display{width:200px;height:200px;border-radius:50%;background:var(--glass-bg);border:3px solid var(--glass-border);display:flex;align-items:center;justify-content:center;font-size:4rem;font-weight:800;color:var(--text-primary);box-shadow:var(--glass-shadow);transition:all .3s ease}.number-display.generated{animation:pulse .5s ease}.number-display.exhausted{border-color:var(--warning-color)}@keyframes 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#667eea80}.btn-primary:disabled{opacity:.5;cursor:not-allowed;transform:none}.btn-secondary{background:var(--btn-secondary-bg);color:var(--text-primary);border:1px solid var(--glass-border)}.btn-secondary:hover{background:var(--btn-secondary-hover);transform:translateY(-2px)}.btn-small{padding:.5rem 1rem;font-size:.85rem}.history-section{background:var(--history-bg);border-radius:16px;padding:1rem}.history-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:1rem}.history-header h3{font-size:1rem;font-weight:600;color:var(--text-secondary)}.history-list{max-height:150px;overflow-y:auto;padding-right:.5rem}.history-list::-webkit-scrollbar{width:6px}.history-list::-webkit-scrollbar-track{background:transparent}.history-list::-webkit-scrollbar-thumb{background:var(--glass-border);border-radius:3px}.history-item{display:flex;align-items:center;padding:.6rem .8rem;margin-bottom:.5rem;background:var(--glass-bg);border-radius:8px;animation:slideIn .3s ease}@keyframes slideIn{0%{opacity:0;transform:translate(-10px)}to{opacity:1;transform:translate(0)}}.history-number{font-size:1.1rem;font-weight:700;color:var(--accent-color);margin-right:.75rem}.history-index{font-size:.8rem;color:var(--text-muted)}.empty-history{text-align:center;color:var(--text-muted);font-size:.9rem;padding:1rem 0}.footer{text-align:center;margin-top:1.5rem;color:var(--text-muted);font-size:.85rem}.footer kbd{background:var(--glass-bg);border:1px solid var(--glass-border);border-radius:4px;padding:.15rem .5rem;font-family:inherit;font-size:.8rem}#confettiCanvas{position:fixed;top:0;left:0;width:100%;height:100%;pointer-events:none;z-index:1000}@media (max-width: 480px){body{padding:.75rem}.card{padding:1.5rem;border-radius:20px}.header h1{font-size:1.4rem}.range-section{flex-direction:column;gap:.75rem}.range-separator{text-align:center;padding:0}.number-display{width:160px;height:160px;font-size:3rem}.actions-section{flex-direction:column;gap:.75rem}.theme-toggle{top:1rem;right:1rem;width:42px;height:42px}}@media (max-width: 360px){.number-display{width:140px;height:140px;font-size:2.5rem}}