:root{--gold: #FFD700;--gold-glow: rgba(255, 215, 0, .4);--void: #050505;--void-light: #0a0a0f;--void-lighter: #12121a;--text-primary: #FFFFFF;--text-secondary: #A0A0A0;--text-dim: #606070;--panel-bg: rgba(10, 10, 15, .95);--panel-border: rgba(255, 215, 0, .15);--control-bg: rgba(20, 20, 30, .8);--control-border: rgba(255, 215, 0, .2);--meter-green: #10b981;--meter-yellow: #f59e0b;--meter-red: #ef4444;font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;font-size:14px;line-height:1.5;color-scheme:dark}*{box-sizing:border-box;margin:0;padding:0}body{background:var(--void);color:var(--text-primary);min-height:100vh;overflow-x:hidden;position:relative}body:before{content:"";position:fixed;top:0;left:0;width:100%;height:100%;background:radial-gradient(circle at 50% 50%,rgba(255,215,0,.03) 0%,transparent 50%),repeating-linear-pattern;background-size:100% 100%,3px 3px;animation:grain 8s steps(10) infinite,pulse 4s ease-in-out 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h3,.technical-analysis h3,.comparison-section h3{margin-bottom:14px}.spectrum-analyzer canvas,.visualizations canvas{width:100%;max-width:980px;height:auto;display:block;margin:12px auto 0;border-radius:12px;border:1px solid rgba(255,215,0,.18);background:#00000040}.spectrum-legend{display:flex;flex-wrap:wrap;gap:14px;justify-content:center;margin-top:10px;color:var(--text-secondary);font-size:12px}.legend-item{display:inline-flex;align-items:center;gap:8px}.legend-color{width:10px;height:10px;border-radius:3px;display:inline-block}.legend-color.signal{background:var(--meter-green)}.legend-color.kweight{background:var(--gold)}.targets-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:16px}.recommendations ul{margin:8px 0 0;padding-left:18px;color:var(--text-secondary)}.recommendations li{margin:8px 0;line-height:1.5}.visualizations{display:grid;grid-template-columns:1fr;gap:18px;margin-top:14px}.visualization-panel{background:#0a0a0f8c;border:1px solid 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ease}.check-item:hover{border-color:var(--gold);background:#14141e}.check-icon{font-size:18px}.check-icon.pass{color:var(--meter-green)}.check-icon.fail{color:var(--meter-red)}.check-icon.warn{color:var(--meter-yellow)}.check-text{flex:1;font-size:14px;color:var(--text-primary)}.footer{margin-top:48px;padding-top:32px;border-top:1px solid rgba(255,215,0,.1);text-align:center;color:var(--text-dim);font-size:13px}.footer a{color:var(--gold);text-decoration:none;transition:all .2s ease}.footer a:hover{color:var(--text-primary);text-shadow:0 0 10px var(--gold-glow)}@media (max-width: 768px){.page{padding:20px 16px}.hero{padding:28px 24px}h1{font-size:28px}.panel{padding:24px 20px}.meter-section,.results-grid{grid-template-columns:1fr}}@keyframes spin{to{transform:rotate(360deg)}}.spinner{display:inline-block;width:20px;height:20px;border:3px solid rgba(255,215,0,.2);border-top-color:var(--gold);border-radius:50%;animation:spin .8s linear infinite}