*,*:before,*:after{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0}img,svg,video,canvas{display:block;max-width:100%}button,input,select,textarea{font:inherit}.u-container{width:min(100% - (var(--space-6) * 2),var(--container-wide));margin-inline:auto}.u-container-narrow{width:min(100% - (var(--space-6) * 2),var(--container-narrow));margin-inline:auto}.u-flex{display:flex}.u-inline-flex{display:inline-flex}.u-grid{display:grid}.u-center{display:flex;align-items:center;justify-content:center}.u-between{display:flex;align-items:center;justify-content:space-between}.u-stack{display:flex;flex-direction:column;gap:var(--stack-gap, var(--space-4))}.u-cluster{display:flex;flex-wrap:wrap;align-items:center;gap:var(--cluster-gap, var(--space-3))}.u-card{border:var(--border-width) solid var(--border-color);border-radius:var(--radius-md);box-shadow:var(--shadow-sm);background:var(--card-bg)}.u-surface{background:var(--bg-primary);color:var(--text-primary)}.u-muted{color:var(--text-secondary)}.u-gradient-text{-webkit-text-fill-color:transparent;background:var(--gradient-1);background-clip:text}.u-pill{display:inline-flex;align-items:center;justify-content:center;gap:var(--space-2);padding:var(--space-2) var(--space-4);border-radius:var(--radius-pill);font-size:var(--font-size-sm);font-weight:var(--font-weight-semibold)}.u-icon-btn{display:inline-flex;align-items:center;justify-content:center;width:var(--control-md);height:var(--control-md);border:var(--border-width) solid var(--border-color);border-radius:var(--radius-circle);background:var(--card-bg);color:var(--text-primary);transition:transform var(--duration-fast) var(--ease-standard),border-color var(--duration-fast) var(--ease-standard),background var(--duration-fast) var(--ease-standard);cursor:pointer}.u-icon-btn:hover{border-color:var(--primary-blue);transform:translateY(-1px)}.u-sr-only{position:absolute;overflow:hidden;width:1px;height:1px;padding:0;margin:-1px;border:0;white-space:nowrap;clip:rect(0,0,0,0)}