/* Phú Cao Swim Academy — shared foundation */
/* Reset */
*,*::before,*::after{box-sizing:border-box}html{scroll-behavior:smooth}body,h1,h2,h3,p,ol,ul{margin:0}ol,ul{padding:0}img{max-width:100%;display:block}a{color:inherit;text-decoration:none}
/* Variables */
:root{--pcs-primary:#075B2C;--pcs-secondary:#FC6621;--pcs-background:#F8FAFC;--pcs-text:#1F2937;--pcs-border:#E5E7EB;--pcs-card:#FFF;--pcs-radius:1rem;--pcs-radius-lg:1.5rem;--pcs-shadow:0 18px 48px rgba(15,23,42,.12);--pcs-transition:180ms ease}
/* Typography */
body{background:var(--pcs-background);color:var(--pcs-text);font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;line-height:1.5}.pcs-page{min-width:320px}h1,h2,h3{line-height:1.12;letter-spacing:-.03em}
/* Container and spacing */
.pcs-container{width:min(100% - 3rem,1200px);margin-inline:auto}.pcs-section{padding:6rem 0}.pcs-section:not(.pcs-hero){border-top:1px solid var(--pcs-border)}
/* Buttons */
.pcs-btn{align-items:center;border:1px solid transparent;border-radius:.75rem;display:inline-flex;font-weight:700;gap:.5rem;justify-content:center;min-height:3.25rem;padding:.75rem 1.15rem;transition:transform var(--pcs-transition),background var(--pcs-transition),border-color var(--pcs-transition)}.pcs-btn:hover{transform:translateY(-2px)}.pcs-btn--primary{background:var(--pcs-secondary);color:#fff}.pcs-btn--secondary{border-color:rgba(255,255,255,.28);color:#fff}
/* Cards and utilities */
.pcs-card{background:var(--pcs-card);border:1px solid var(--pcs-border);border-radius:var(--pcs-radius);box-shadow:var(--pcs-shadow)}.pcs-site-header{background:var(--pcs-primary);color:#fff;padding:1rem 0}.pcs-brand{font-weight:800;letter-spacing:-.03em}.pcs-sr-only{clip:rect(0,0,0,0);clip-path:inset(50%);height:1px;overflow:hidden;position:absolute;white-space:nowrap;width:1px}
/* Accessible focus */
:focus-visible{outline:3px solid var(--pcs-secondary);outline-offset:3px}