:root{--color-primary: #3772ff;--color-primary-light: #6e9aff;--color-primary-dark: #0045ff;--color-secondary: #f45b69;--color-secondary-light: #ff8a95;--color-secondary-dark: #c62e3f;--color-accent: #ffd166;--color-accent-light: #ffdf94;--color-accent-dark: #ffc333;--color-success: #06d6a0;--color-success-light: #39ffcf;--color-success-dark: #05a47a;--color-warning: #f9c74f;--color-warning-light: #fbd87d;--color-warning-dark: #f7b721;--color-error: #ef476f;--color-error-light: #f37695;--color-error-dark: #df1b48;--color-background: #f8f9fa;--color-card: #ffffff;--color-text: #212529;--color-text-light: #6c757d;--color-heading: #212529;--color-border: #dee2e6;--shadow-sm: 0 2px 4px rgba(0, 0, 0, .05);--shadow-md: 0 4px 6px rgba(0, 0, 0, .1);--shadow-lg: 0 10px 15px rgba(0, 0, 0, .1);--border-radius-sm: 4px;--border-radius-md: 8px;--border-radius-lg: 12px;--space-1: 4px;--space-2: 8px;--space-3: 16px;--space-4: 24px;--space-5: 32px;--space-6: 48px;--space-7: 64px;--space-8: 96px;--font-weight-normal: 400;--font-weight-medium: 500;--font-weight-bold: 600;--transition-fast: .15s ease;--transition-normal: .3s ease;--transition-slow: .5s ease}[data-theme=dark]{--color-primary: #4d80ff;--color-primary-light: #7da0ff;--color-primary-dark: #2e6eff;--color-secondary: #ff6b79;--color-secondary-light: #ff99a3;--color-secondary-dark: #ff3d4f;--color-accent: #ffd166;--color-accent-light: #ffdf94;--color-accent-dark: #ffc333;--color-success: #06d6a0;--color-success-light: #39ffcf;--color-success-dark: #05a47a;--color-warning: #f9c74f;--color-warning-light: #fbd87d;--color-warning-dark: #f7b721;--color-error: #ef476f;--color-error-light: #f37695;--color-error-dark: #df1b48;--color-background: #121212;--color-card: #1e1e1e;--color-text: #e9ecef;--color-text-light: #adb5bd;--color-heading: #f8f9fa;--color-border: #343a40;--shadow-sm: 0 2px 4px rgba(0, 0, 0, .2);--shadow-md: 0 4px 6px rgba(0, 0, 0, .3);--shadow-lg: 0 10px 15px rgba(0, 0, 0, .4)}.dashboard{display:grid;grid-template-columns:repeat(2,1fr);gap:var(--space-4);width:100%}.chart-container{background-color:var(--color-card);border-radius:var(--border-radius-md);box-shadow:var(--shadow-md);overflow:hidden;transition:transform var(--transition-normal),box-shadow var(--transition-normal),opacity var(--transition-normal);opacity:0;transform:translateY(10px);min-height:400px}.chart-container.visible{opacity:1;transform:translateY(0)}.chart-container:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}.chart-header{display:flex;justify-content:space-between;align-items:center;padding:var(--space-3);border-bottom:1px solid var(--color-border)}.chart-title{font-size:1.125rem;font-weight:var(--font-weight-medium);color:var(--color-heading);margin:0}.chart-close{background:none;border:none;color:var(--color-text-light);font-size:1.5rem;cursor:pointer;padding:0;width:24px;height:24px;display:flex;align-items:center;justify-content:center;border-radius:50%;transition:background-color var(--transition-fast),color var(--transition-fast)}.chart-close:hover{background-color:var(--color-error-light);color:#fff}.chart-content{padding:var(--space-3);min-height:250px;display:flex;flex-direction:column;align-items:center;justify-content:center}.chart-visualization{width:100%;height:100%;min-height:250px}.chart-loader{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:var(--space-3)}.spinner{width:40px;height:40px;border:4px solid var(--color-border);border-top:4px solid var(--color-primary);border-radius:50%;animation:rotate 1s linear infinite}.chart-error{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:var(--space-3);text-align:center;color:var(--color-error)}.error-icon{display:flex;align-items:center;justify-content:center;width:32px;height:32px;border-radius:50%;background-color:var(--color-error);color:#fff;font-weight:var(--font-weight-bold);font-size:1.25rem}.chart-error p{color:var(--color-text);max-width:300px}.chart-error button{background-color:var(--color-primary);color:#fff;border:none;padding:var(--space-2) var(--space-3);border-radius:var(--border-radius-sm);cursor:pointer;font-weight:var(--font-weight-medium);transition:background-color var(--transition-fast)}.chart-error button:hover{background-color:var(--color-primary-dark)}.modebar-container{display:none!important}@media (max-width: 768px){.dashboard{grid-template-columns:1fr}.chart-container{min-height:250px}.chart-content{min-height:200px}}@media (min-width: 769px) and (max-width: 1200px){.dashboard{grid-template-columns:repeat(auto-fill,minmax(min(100%,400px),1fr))}}.theme-switcher{display:flex;align-items:center}.theme-toggle{position:relative;display:inline-block;width:60px;height:30px;cursor:pointer}.theme-toggle input{opacity:0;width:0;height:0}.slider{position:absolute;top:0;left:0;right:0;bottom:0;background-color:var(--color-text-light);border-radius:30px;transition:var(--transition-normal)}.slider:before{position:absolute;content:"";height:22px;width:22px;left:4px;bottom:4px;background-color:#fff;border-radius:50%;transition:var(--transition-normal)}input:checked+.slider{background-color:var(--color-primary)}input:checked+.slider:before{transform:translate(30px)}.icon{position:absolute;top:5px;font-size:14px;transition:opacity var(--transition-normal)}.sun-icon{left:7px;opacity:1}.moon-icon{right:7px;opacity:0}input:checked~.sun-icon{opacity:0}input:checked~.moon-icon{opacity:1}.chart-adder{background-color:var(--color-card);border-radius:var(--border-radius-md);box-shadow:var(--shadow-md);padding:var(--space-4);margin-bottom:var(--space-4);animation:fadeIn .5s ease}.add-chart-form{display:flex;flex-wrap:wrap;gap:var(--space-3);align-items:flex-end}.input-container{flex:1;min-width:250px}.input-container label{display:block;margin-bottom:var(--space-1);font-weight:var(--font-weight-medium);color:var(--color-text)}.input-container input{width:100%;padding:var(--space-2);border:1px solid var(--color-border);border-radius:var(--border-radius-sm);background-color:var(--color-background);color:var(--color-text);transition:border-color var(--transition-fast),box-shadow var(--transition-fast)}.input-container input:focus{border-color:var(--color-primary);box-shadow:0 0 0 2px var(--color-primary-light);outline:none}.add-chart-button{background-color:var(--color-primary);color:#fff;border:none;padding:var(--space-2) var(--space-3);border-radius:var(--border-radius-sm);cursor:pointer;font-weight:var(--font-weight-medium);transition:background-color var(--transition-fast),transform var(--transition-fast);min-width:120px;margin-bottom:1px}.add-chart-button:hover{background-color:var(--color-primary-dark);transform:translateY(-2px)}.add-chart-button:active{transform:translateY(0)}@media (max-width: 768px){.add-chart-form{flex-direction:column;align-items:stretch}.input-container{min-width:100%}.add-chart-button{width:100%}}:root{font-family:Inter,sans-serif;font-size:16px;line-height:1.5;font-weight:400;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}*{box-sizing:border-box;margin:0;padding:0}body{background-color:var(--color-background);color:var(--color-text);min-height:100vh;transition:background-color .3s ease,color .3s ease}#app{display:flex;flex-direction:column;width:100%;max-width:1600px;margin:0 auto;padding:16px}.app-header{display:flex;justify-content:space-between;align-items:center;padding:16px 0;margin-bottom:24px;border-bottom:1px solid var(--color-border)}.app-header h1{font-size:1.75rem;font-weight:600;color:var(--color-heading)}.app-main{display:flex;flex-direction:column;gap:24px}.app-footer{padding:16px;border-top:1px solid var(--color-border);font-size:.875rem;color:var(--color-text-light);text-align:center}@media (max-width: 768px){#app{padding:12px}.app-header{flex-direction:column;align-items:flex-start;gap:12px}.app-header h1{font-size:1.5rem}}.hidden{display:none!important}.visually-hidden{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}@keyframes rotate{0%{transform:rotate(0)}to{transform:rotate(360deg)}}@keyframes pulse{0%{opacity:.6}50%{opacity:1}to{opacity:.6}}