:root{--bg-primary: #050505;--bg-secondary: #0f0f10;--bg-tertiary: #18181b;--accent-primary: #6d28d9;--accent-glow: #8b5cf6;--accent-success: #10b981;--accent-error: #ef4444;--text-primary: #fafafa;--text-secondary: #a1a1aa;--text-tertiary: #71717a;--radius-sm: 8px;--radius-md: 12px;--radius-lg: 24px;--radius-full: 9999px;--spacing-xs: 4px;--spacing-sm: 8px;--spacing-md: 16px;--spacing-lg: 24px;--spacing-xl: 32px;--spacing-2xl: 64px;--transition-fast: .15s cubic-bezier(.4, 0, .2, 1);--transition-normal: .3s cubic-bezier(.4, 0, .2, 1);--shadow-glow: 0 0 20px -5px rgba(139, 92, 246, .3)}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html,body{height:100%;width:100%;overflow-x:hidden}body{background-color:var(--bg-primary);color:var(--text-primary);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif,"Apple Color Emoji","Segoe UI Emoji",Segoe UI Symbol;line-height:1.5;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}button{cursor:pointer;font:inherit;border:none;background:none}.container{max-width:1200px;margin:0 auto;padding:0 var(--spacing-md);min-height:100vh;display:flex;flex-direction:column}.heading-xl{font-size:3rem;font-weight:700;letter-spacing:-.05em;line-height:1.1;background:linear-gradient(to right,#fff,#a1a1aa);-webkit-background-clip:text;-webkit-text-fill-color:transparent}.heading-lg{font-size:2rem;font-weight:600;letter-spacing:-.03em}.text-muted{color:var(--text-secondary)}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.animate-fade-in{animation:fadeIn var(--transition-normal) forwards}@keyframes pulse-glow{0%,to{box-shadow:0 0 10px -5px var(--accent-glow)}50%{box-shadow:0 0 25px -5px var(--accent-glow)}}.btn-primary{background:var(--accent-primary);color:#fff;padding:var(--spacing-md) var(--spacing-xl);border-radius:var(--radius-full);font-weight:600;font-size:1.1rem;transition:all var(--transition-normal);box-shadow:0 4px 15px -3px #7c3aed4d}.btn-primary:hover{background:var(--accent-glow);transform:translateY(-2px);box-shadow:0 8px 25px -5px #7c3aed80}.btn-secondary{background:var(--bg-tertiary);color:var(--text-primary);padding:var(--spacing-sm) var(--spacing-lg);border-radius:var(--radius-full);font-weight:500;transition:background var(--transition-fast);border:1px solid rgba(255,255,255,.1)}.btn-secondary:hover{background:#ffffff1a}.btn-stop{background:var(--accent-error);color:#fff;padding:var(--spacing-sm) var(--spacing-xl);border-radius:var(--radius-full);font-weight:600}.card-glass{background:#18181b99;backdrop-filter:blur(12px);border:1px solid rgba(255,255,255,.05);border-radius:var(--radius-lg);padding:var(--spacing-lg);box-shadow:0 4px 30px #0000001a}.metric-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:var(--spacing-md);margin-top:var(--spacing-md)}.metric-item{background:var(--bg-secondary);border-radius:var(--radius-md);padding:var(--spacing-md);text-align:center;border:1px solid rgba(255,255,255,.05);transition:transform var(--transition-fast),border-color var(--transition-fast)}.metric-item:hover{transform:translateY(-2px);border-color:#ffffff1a}.metric-item.accent-blue{border-top:2px solid #3b82f6;background:linear-gradient(180deg,#3b82f61a,#3b82f600)}.metric-item.accent-purple{border-top:2px solid #a855f7;background:linear-gradient(180deg,#a855f71a,#a855f700)}.metric-item.accent-green{border-top:2px solid #10b981;background:linear-gradient(180deg,#10b9811a,#10b98100)}.metric-value{display:block;font-size:2rem;font-weight:800;color:var(--text-primary);margin-bottom:var(--spacing-xs)}.metric-label{font-size:.75rem;text-transform:uppercase;letter-spacing:.05em;color:var(--text-secondary);font-weight:600}.metric-footer{display:flex;justify-content:center;gap:var(--spacing-lg);margin-top:var(--spacing-lg);border-top:1px solid rgba(255,255,255,.05);padding-top:var(--spacing-md)}.metric-subitem{display:flex;flex-direction:column;align-items:center}.metric-subvalue{font-size:1.25rem;font-weight:700;color:var(--text-secondary)}.metric-sublabel{font-size:.7rem;text-transform:uppercase;letter-spacing:.05em;color:var(--text-tertiary)}.session-container{flex:1;display:flex;flex-direction:column;justify-content:center;align-items:center;gap:var(--spacing-xl);text-align:center;min-height:50vh}.visualizer-circle{width:120px;height:120px;border-radius:50%;background:var(--accent-primary);display:flex;align-items:center;justify-content:center;animation:pulse-glow 2s infinite ease-in-out;position:relative}.visualizer-circle:after{content:"";position:absolute;inset:-10px;border-radius:50%;border:2px solid var(--accent-primary);opacity:.5;animation:breathe 3s infinite ease-in-out}.status-badge{display:inline-flex;align-items:center;gap:8px;padding:8px 16px;background:#7c3aed1a;color:var(--accent-glow);border-radius:var(--radius-full);font-size:.9rem;font-weight:600}