:root{--primary:#6c5ce7;--primary-light:#a29bfe;--primary-dark:#5649c0;--secondary:#00b894;--accent:#fd79a8;--text:#2d3436;--text-light:#636e72;--bg:#f9f7fd;--card-bg:#fff;--sidebar-bg:#f1eefc;--header-bg:#6c5ce7;--footer-bg:#6c5ce7;--input-bg:#fff;--shadow:0 4px 12px #00000014;--border:1px solid #dfe6e9;--dark-primary:#a29bfe;--dark-primary-light:#6c5ce7;--dark-primary-dark:#5649c0;--dark-secondary:#00cec9;--dark-accent:#ff7675;--dark-text:#f5f6fa;--dark-text-light:#dcdde1;--dark-bg:#2d3436;--dark-card-bg:#34495e;--dark-sidebar-bg:#2c3e50;--dark-header-bg:#2c3e50;--dark-footer-bg:#2c3e50;--dark-input-bg:#34495e;--dark-shadow:0 4px 12px #0000004d;--dark-border:1px solid #4b6584}*{box-sizing:border-box;margin:0;padding:0;transition:background-color .3s,color .3s,border-color .3s}body{font-family:Poppins,sans-serif;background-color:var(--bg);color:var(--text);line-height:1.6;min-height:100vh;display:flex;flex-direction:column}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes fadeInUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}@keyframes fadeInDown{0%{opacity:0;transform:translateY(-20px)}to{opacity:1;transform:translateY(0)}}@keyframes pulse{0%{transform:scale(1)}50%{transform:scale(1.1)}to{transform:scale(1)}}@keyframes spin{0%{transform:rotate(0deg)}to{transform:rotate(1turn)}}@keyframes float{0%{transform:translateY(0)}50%{transform:translateY(-15px)}to{transform:translateY(0)}}@keyframes toolHighlight{0%{transform:scale(1);box-shadow:var(--shadow)}50%{transform:scale(1.05);box-shadow:0 8px 20px #6c5ce74d}to{transform:scale(1);box-shadow:var(--shadow)}}@keyframes ripple{0%{transform:scale(0);opacity:1}20%{transform:scale(25);opacity:1}to{opacity:0;transform:scale(40)}}@keyframes glow{0%{box-shadow:0 0 5px #fd79a880}to{box-shadow:0 0 20px #fd79a8cc}}@keyframes textGlow{0%{text-shadow:0 0 5px #6c5ce780}to{text-shadow:0 0 15px #6c5ce7cc}}@keyframes fadeInOut{0%{opacity:.7}50%{opacity:1}to{opacity:.7}}.highlight{animation:toolHighlight 2s ease-in-out}body.dark-mode{background-color:var(--dark-bg);color:var(--dark-text)}body.dark-mode header{background-color:var(--dark-header-bg)}body.dark-mode .sidebar{background-color:var(--dark-sidebar-bg);border-right-color:var(--dark-border)}body.dark-mode section{background-color:var(--dark-card-bg);border-color:var(--dark-border);box-shadow:var(--dark-shadow)}body.dark-mode .category-title,body.dark-mode .sidebar a.active,body.dark-mode .sidebar a:hover{background-color:var(--dark-primary);color:#fff}body.dark-mode input,body.dark-mode select,body.dark-mode textarea{background-color:var(--dark-input-bg);color:var(--dark-text);border-color:var(--dark-border)}body.dark-mode .result{background-color:#6c5ce733;border-left-color:var(--dark-primary)}body.dark-mode footer{background-color:var(--dark-footer-bg)}body.dark-mode .feature-card{background-color:var(--dark-card-bg);border-top-color:var(--dark-primary)}body.dark-mode .feature-card:hover{background-color:var(--dark-primary-light)}body.dark-mode .category-card{background-color:var(--dark-card-bg)}body.dark-mode .category-card:hover{background-color:var(--dark-primary-light)}@media (max-width: 768px){.main-container{flex-direction:column}main{padding:1.5rem}.clickable,a,button{min-height:44px;min-width:44px}input,select,textarea{font-size:16px}}html{scroll-behavior:smooth}a:focus,button:focus,input:focus,select:focus,textarea:focus{outline:2px solid var(--primary);outline-offset:2px}@media print{.header-nav,.mobile-menu-btn,.search-container,.sidebar,footer{display:none!important}.main-container{display:block!important}main{padding:0!important}.calculator-section{box-shadow:none!important;border:1px solid #000!important}}