:root{--primary: #2563eb;--primary-glow: rgba(37, 99, 235, .15);--bg-body: #ffffff;--bg-alt: #f8fafc;--text-main: #0f172a;--text-muted: #475569;--border-soft: #e2e8f0}html{-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;text-rendering:geometricPrecision;background-color:var(--bg-body)}body{font-family:Inter,-apple-system,system-ui,sans-serif;color:var(--text-main);background-color:var(--bg-body);line-height:1.6}.tech-grid{background-image:radial-gradient(rgba(15,23,42,.05) 1px,transparent 1px);background-size:30px 30px;background-color:var(--bg-body);background-attachment:scroll}@media (min-width: 1024px){.tech-grid{background-attachment:fixed}}.btn-tech{background:var(--primary);color:#fff!important;font-weight:600;letter-spacing:-.01em;transition:all .2s cubic-bezier(.4,0,.2,1);box-shadow:0 4px 12px var(--primary-glow)}.btn-tech:active{transform:translateY(0);box-shadow:0 2px 8px var(--primary-glow)}#back-to-top{background:#fff;color:var(--primary);border:2px solid var(--border-soft);box-shadow:0 10px 25px #00000014}#back-to-top:hover{border-color:var(--primary);transform:translateY(-4px);box-shadow:0 15px 30px #0000001f}@media (max-width: 640px){.tech-grid{background-image:none!important;background-color:var(--bg-body)}.container-main{padding:1rem}h1{font-size:1.875rem!important}}:root{--canvas-bg: #ffffff}.drawing-page-container{min-height:calc(100vh - 100px);background:radial-gradient(circle at 70% 0%,rgba(37,99,235,.03) 0%,transparent 70%)}.section-title{font-size:.75rem;font-weight:800;text-transform:uppercase;letter-spacing:.08em;margin-bottom:1.25rem;display:flex;align-items:center;gap:.6rem;color:#64748b}.dark .section-title{color:#94a3b8}.glass-panel{background:#ffffffe6;-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);border:1px solid rgba(255,255,255,1)}.dark .glass-panel{background:#1e293bcc;border:1px solid rgba(255,255,255,.05)}.canvas-outer-frame{background:#f1f5f9;padding:1rem;border-radius:3.5rem;border:1px solid rgba(255,255,255,.5)}.dark .canvas-outer-frame{background:#1e293b;border-color:#ffffff0d}.canvas-container{width:100%;aspect-ratio:1 / 1;background-color:var(--canvas-bg);border-radius:2.8rem;overflow:hidden;display:flex;align-items:center;justify-content:center;cursor:crosshair}#mandalaCanvas{width:100%!important;height:100%!important;display:block}.effect-toggle{display:flex;justify-content:space-between;align-items:center;padding:.6rem .8rem;border-radius:1rem;cursor:pointer;transition:all .2s;border:1px solid transparent}.effect-toggle:hover{background:#f8fafc;border-color:#e2e8f0}.dark .effect-toggle:hover{background:#0f172a;border-color:#334155}.toggle-checkbox{-webkit-appearance:none;-moz-appearance:none;appearance:none;width:32px;height:18px;background:#e2e8f0;border-radius:10px;position:relative;cursor:pointer;transition:all .3s}.dark .toggle-checkbox{background:#334155}.toggle-checkbox:checked{background:#3b82f6}.toggle-checkbox:before{content:"";position:absolute;width:12px;height:12px;background:#fff;border-radius:50%;top:3px;left:3px;transition:all .3s cubic-bezier(.175,.885,.32,1.275)}.toggle-checkbox:checked:before{transform:translate(14px)}.custom-slider{-webkit-appearance:none;-moz-appearance:none;appearance:none;width:100%;height:8px;background:#f1f5f9;border-radius:10px;outline:none}.dark .custom-slider{background:#0f172a}.custom-slider::-webkit-slider-thumb{-webkit-appearance:none;width:20px;height:20px;background:#fff;border:4px solid #3b82f6;border-radius:50%;cursor:pointer;box-shadow:0 2px 4px #0000001a}.slider-emerald::-webkit-slider-thumb{border-color:#10b981}.slider-orange::-webkit-slider-thumb{border-color:#f97316}.action-btn{min-width:44px;height:44px;display:inline-flex;align-items:center;justify-content:center;border-radius:14px;transition:all .2s;white-space:nowrap}.btn-primary{background:linear-gradient(135deg,#2563eb,#4f46e5);color:#fff}.btn-secondary{background:#fff;color:#64748b;border:1px solid #e2e8f0}.dark .btn-secondary{background:#1e293b;color:#94a3b8;border-color:#334155}.btn-danger{background:#fff1f2;color:#e11d48;border:1px solid #ffe4e6}.custom-scrollbar::-webkit-scrollbar{width:4px}.custom-scrollbar::-webkit-scrollbar-thumb{background:#e2e8f0;border-radius:10px}@keyframes fade-in{0%{opacity:0;transform:translateY(-5px)}to{opacity:1;transform:translateY(0)}}.animate-fade-in{animation:fade-in .3s ease-out forwards}.no-scrollbar::-webkit-scrollbar{display:none}.no-scrollbar{-ms-overflow-style:none;scrollbar-width:none}