*{box-sizing:border-box;margin:0;padding:0}:root{--bg-base: #f5f5f7;--bg-elevated: #ffffff;--bg-nav: rgba(255, 255, 255, .72);--bg-card: rgba(255, 255, 255, .88);--bg-input: #ffffff;--bg-section-alt: #f5f5f7;--bg-dark-section: #000000;--text-primary: #1d1d1f;--text-secondary: rgba(0, 0, 0, .64);--text-tertiary: rgba(0, 0, 0, .48);--text-inverse: #ffffff;--text-link: #0066cc;--text-link-dark: #2997ff;--accent: #111111;--accent-hover: #2a2a2a;--warm-surface: rgba(245, 242, 239, .82);--warm-shadow: rgba(78, 50, 23, .08) 0 14px 36px;--border-light: rgba(0, 0, 0, .08);--border-medium: rgba(0, 0, 0, .12);--shadow-card: rgba(0, 0, 0, .06) 0 0 0 1px, rgba(0, 0, 0, .04) 0 10px 32px;--shadow-nav: rgba(0, 0, 0, .06) 0 0 0 1px, rgba(0, 0, 0, .04) 0 8px 28px;--radius-xs: 5px;--radius-sm: 8px;--radius-md: 12px;--radius-lg: 18px;--radius-xl: 24px;--radius-pill: 980px;--font-stack: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;--font-mono: ui-monospace, SFMono-Regular, 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meter{width:100%;height:14px;accent-color:var(--accent)}.text-center{text-align:center}.text-secondary{color:var(--text-secondary)}.mt-16{margin-top:16px}.mt-24{margin-top:24px}.mb-16{margin-bottom:16px}.gap-12{gap:12px}.gap-16{gap:16px}@media(max-width:860px){.feature-grid,.why-grid{grid-template-columns:1fr}.ladder-card{margin-top:-18px;margin-bottom:8px}.home-hero{grid-template-columns:1fr;padding:22px}.home-quick-stats{grid-template-columns:repeat(2,minmax(0,1fr))}.panel-title{flex-wrap:wrap}.platform-select{width:100%;max-width:none;margin-left:0}.panel-grid-2,.live-controls,.metrics-grid,.profile-grid{grid-template-columns:1fr}.profile-sidebar{position:static}.hero h1{font-size:2.8rem}.section-title{font-size:2rem}.judge-runs{grid-template-columns:1fr}}@media(max-width:480px){.navbar-inner{padding:0 14px}.home-quick-stats{grid-template-columns:1fr}.navbar-links{gap:0}.navbar-links button,.nav-link{padding:6px 8px;font-size:.78rem}.page-container{padding:0 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