*{margin:0;padding:0;box-sizing:border-box;-webkit-tap-highlight-color:transparent}html,body,#root{height:100%;overflow:hidden;touch-action:pan-y}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,system-ui,sans-serif;background:#000;color:#fff;-webkit-font-smoothing:antialiased}.app{height:100%;display:flex;align-items:center;justify-content:center;padding:env(safe-area-inset-top,0) env(safe-area-inset-right,0) env(safe-area-inset-bottom,0) env(safe-area-inset-left,0)}.card-stack{position:relative;width:min(340px,80vw);height:min(500px,65vh)}.card{position:absolute;top:0;right:0;bottom:0;left:0;border-radius:20px;overflow:hidden;will-change:transform;-webkit-user-select:none;user-select:none;box-shadow:0 8px 40px #0006}.card-inner{width:100%;height:100%;display:flex;align-items:center;justify-content:center}.card-label{position:absolute;bottom:24px;left:0;right:0;text-align:center;font-size:14px;font-weight:500;letter-spacing:.05em;text-transform:uppercase;color:#ffffffb3}.card-text{background:#111;font-size:clamp(32px,8vw,56px);font-weight:300;letter-spacing:-.02em;color:#fff}.card-phrase{background:#111;font-size:clamp(20px,5vw,32px);font-weight:300;font-style:italic;letter-spacing:.01em;color:#ffffffe6;padding:32px;text-align:center;line-height:1.4}.card-palette{display:flex;flex-direction:column}.card-label-palette{text-shadow:0 1px 4px rgba(0,0,0,.6)}.card-concept{background:linear-gradient(160deg,#1a1a1a,#0a0a0a);font-size:clamp(20px,5vw,36px);font-weight:700;letter-spacing:.2em;text-transform:uppercase;color:#ffffffd9;text-align:center;padding:32px}.glow{position:absolute;top:0;right:0;bottom:0;left:0;border-radius:20px;pointer-events:none}.glow-cool{box-shadow:inset 0 0 60px #4ecdc466,0 0 40px #4ecdc44d;border:2px solid rgba(78,205,196,.5)}.glow-nah{box-shadow:inset 0 0 60px #ff6b6b66,0 0 40px #ff6b6b4d;border:2px solid rgba(255,107,107,.5)}.verdict{position:absolute;top:32px;padding:8px 20px;border-radius:8px;font-size:28px;font-weight:700;letter-spacing:.08em;pointer-events:none}.verdict-cool{right:20px;color:#4ecdc4;border:3px solid #4ECDC4}.verdict-not-cool{left:20px;color:#ff6b6b;border:3px solid #FF6B6B}.stack-empty{color:#555;font-size:18px;text-align:center}