:root{--bg-deep:#05070a;--bg-surface:#0e1218;--bg-surface-elevated:#161b22;--primary:#0f8;--primary-low:#00ff881a;--secondary:#0070f3;--accent:#7000ff;--text-primary:#fff;--text-secondary:#8b949e;--text-muted:#484f58;--border:#30363d;--border-focus:#58a6ff;--glass:#161b22b3;--glass-border:#ffffff1a;--shadow-sm:0 1px 2px #00000080;--shadow-md:0 4px 12px #0009;--shadow-lg:0 12px 24px #000c;--space-unit:8px;--radius-sm:4px;--radius-md:12px;--radius-lg:20px;--font-main:"Inter", system-ui, -apple-system, sans-serif}*{box-sizing:border-box;margin:0;padding:0}html,body{background:var(--bg-deep);color:var(--text-primary);font-family:var(--font-main);-webkit-font-smoothing:antialiased;min-height:100vh}a{color:inherit;text-decoration:none;transition:opacity .2s}a:hover{opacity:.8}button{font-family:var(--font-main);cursor:pointer;border:none;outline:none}.glass{background:var(--glass);-webkit-backdrop-filter:blur(12px);border:1px solid var(--glass-border)}.container{max-width:1200px;margin:0 auto;padding:0 24px}.card{background:var(--bg-surface);border-radius:var(--radius-md);border:1px solid var(--border);padding:24px;transition:transform .3s cubic-bezier(.175,.885,.32,1.275),border-color .2s}.card:hover{border-color:var(--primary);transform:translateY(-4px)}.text-gradient{background:linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);-webkit-text-fill-color:transparent;-webkit-background-clip:text}.nav-link{color:var(--text-secondary);font-weight:500;transition:color .2s;position:relative}.nav-link:hover,.nav-link.active{color:var(--primary)}.nav-link.active:after{content:"";background:var(--primary);border-radius:2px;width:100%;height:2px;position:absolute;bottom:-4px;left:0}.ch-post{transition:border-color .15s,background .15s}.ch-post:hover{border-color:var(--border-focus);background:var(--bg-surface-elevated)}