:root{--primary: #7C3AED;--primary-dark: #6D28D9;--primary-light: #F3E8FF;--bg-primary: #FFFFFF;--bg-secondary: #FAF9FF;--bg-tertiary: #F5F3FF;--text-primary: #18181B;--text-secondary: #52525B;--text-muted: #71717A;--border: #E4E4E7;--border-dark: #D4D4D8;--success: #16A34A;--danger: #DC2626;--warning: #D97706;--container-width: 1200px;--radius-sm: 6px;--radius-md: 10px;--radius-lg: 16px;--radius-xl: 24px;--shadow-sm: 0 1px 3px rgba(24, 24, 27, .08);--shadow-md: 0 8px 25px rgba(24, 24, 27, .08);--shadow-lg: 0 20px 50px rgba(24, 24, 27, .12)}html.dark{--primary: #8B5CF6;--primary-dark: #7C3AED;--primary-light: #2E1065;--bg-primary: #18181B;--bg-secondary: #09090B;--bg-tertiary: #27272A;--text-primary: #FAFAFA;--text-secondary: #D4D4D8;--text-muted: #A1A1AA;--border: #3F3F46;--border-dark: #52525B;--surface: #27272A;--surface-hover: #3F3F46}*{box-sizing:border-box;margin:0;padding:0;-webkit-tap-highlight-color:transparent}html{scroll-behavior:smooth}body{min-height:100vh;font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;background:var(--bg-secondary);color:var(--text-primary);line-height:1.5;-webkit-font-smoothing:antialiased}button,input,textarea,select{font:inherit}button{cursor:pointer;-webkit-tap-highlight-color:transparent}img{max-width:100%;display:block}a{color:inherit;-webkit-tap-highlight-color:transparent}.container{width:min(var(--container-width),100% - 40px);margin-inline:auto}.section{padding:80px 0}h1,h2,h3,h4,h5,h6{color:var(--text-primary);line-height:1.2;font-weight:700}h1{font-size:clamp(2.5rem,6vw,4.5rem)}h2{font-size:clamp(2rem,4vw,3rem)}h3{font-size:1.5rem}p{color:var(--text-secondary)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:none;border-radius:var(--radius-md);padding:11px 18px;font-weight:600;transition:background .2s ease,transform .2s ease,box-shadow .2s ease}.btn:hover{transform:translateY(-1px)}.btn-primary{background:var(--primary);color:#fff}.btn-primary:hover{background:var(--primary-dark)}.btn-secondary{background:var(--bg-tertiary);color:var(--text-primary)}.btn-secondary:hover{background:var(--border)}.card{background:var(--bg-primary);border:1px solid var(--border);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm)}input,textarea,select{width:100%;border:1px solid var(--border);border-radius:var(--radius-md);background:var(--bg-primary);color:var(--text-primary);outline:none;transition:border-color .2s ease,box-shadow .2s ease}input:focus,textarea:focus,select:focus{border-color:var(--primary);box-shadow:0 0 0 3px var(--primary-light)}.text-center{text-align:center}.text-primary{color:var(--primary)}.text-muted{color:var(--text-muted)}.w-full{width:100%}::-webkit-scrollbar{width:8px}::-webkit-scrollbar-track{background:var(--bg-tertiary)}::-webkit-scrollbar-thumb{background:var(--border-dark);border-radius:10px}::-webkit-scrollbar-thumb:hover{background:var(--text-muted)}@media(max-width:768px){.container{width:min(var(--container-width),100% - 30px)}.section{padding:60px 0}.tool-page,.tools-page{padding:40px 0 0!important}}@media(max-width:480px){.container{width:calc(100% - 24px)}.section{padding:45px 0}}