.site-header{position:sticky;top:0;z-index:1000;min-height:var(--header-height);display:flex;align-items:center;border-bottom:1px solid rgba(0,180,216,.16);background:rgba(1,7,17,.94);backdrop-filter:blur(18px);transition:min-height var(--transition),box-shadow var(--transition)}.site-header.scrolled{min-height:70px;box-shadow:0 16px 38px rgba(0,0,0,.32)}.header-inner{min-height:inherit;display:flex;align-items:center;justify-content:space-between;gap:28px}.brand{flex-shrink:0;display:inline-flex;align-items:center;gap:12px}.brand-icon{width:48px;height:48px;display:grid;place-items:center;border:1px solid var(--cyan);border-radius:14px;color:var(--white);background:linear-gradient(145deg,var(--cyan),var(--blue));box-shadow:var(--shadow-cyan);font-weight:900}.brand-title{display:flex;align-items:baseline;gap:6px;line-height:1}.brand-title span,.brand-title strong{font-size:1.05rem;font-weight:900}.brand-title strong{color:var(--cyan)}.brand-copy small{display:block;margin-top:4px;color:var(--gold);font-size:.52rem;font-weight:800;letter-spacing:.1em;text-transform:uppercase}.main-nav{display:flex;align-items:center;gap:25px}.nav-link{position:relative;padding:30px 0 27px;color:var(--gray-300);font-size:.7rem;font-weight:800;text-transform:uppercase}.nav-link:after{content:"";position:absolute;right:50%;bottom:19px;left:50%;height:2px;border-radius:var(--radius-pill);background:var(--gold);transition:right var(--transition-fast),left var(--transition-fast)}.nav-link:hover,.nav-link.active{color:var(--white)}.nav-link:hover:after,.nav-link.active:after{right:0;left:0}.header-whatsapp{min-height:48px;display:inline-flex;align-items:center;gap:10px;padding:7px 15px;border:var(--border-strong);border-radius:13px;background:rgba(0,180,216,.09)}.whatsapp-symbol{width:30px;height:30px;display:grid;place-items:center;border-radius:50%;color:var(--navy-1000);background:var(--green);font-weight:900}.header-whatsapp>span:last-child{display:grid;line-height:1.05}.header-whatsapp small{color:var(--cyan-light);font-size:.5rem;font-weight:800;text-transform:uppercase}.header-whatsapp strong{margin-top:3px;font-size:.72rem}.menu-toggle{display:none;width:46px;height:46px;padding:10px;border:var(--border-strong);border-radius:12px;background:rgba(0,180,216,.08)}.menu-toggle span{width:100%;height:2px;display:block;margin:5px 0;background:var(--white);transition:transform var(--transition),opacity var(--transition)}.menu-toggle.active span:nth-child(1){transform:translateY(7px) rotate(45deg)}.menu-toggle.active span:nth-child(2){opacity:0}.menu-toggle.active span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* Logo oficial HidroCardsTCG */
.brand-logo-official{display:block;width:auto;height:68px;max-width:150px;object-fit:contain;border-radius:8px}
@media(max-width:720px){.brand-logo-official{height:56px;max-width:125px}}
@media(max-width:470px){.brand-logo-official{height:50px;max-width:112px}}