:root{--bg-primary:#0f1117;--bg-card:#ffffff08;--accent:#4ade80;--accent-secondary:#22d3ee;--text-primary:#f1f5f9;--text-muted:#94a3b8;--danger:#f87171;--border:#ffffff1a}*{box-sizing:border-box}body{-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;background-color:var(--bg-primary);color:var(--text-primary);margin:0;font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif}main{min-height:calc(100vh - 140px);padding-bottom:70px}
.app-header{border-bottom:1px solid var(--border);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);z-index:100;background-color:#0f1117e6;justify-content:space-between;align-items:center;padding:1rem 1.5rem;display:flex;position:sticky;top:0}.header-brand{align-items:center;gap:.75rem;display:flex}.brand-link{color:inherit;text-decoration:none}.app-header h1{color:var(--text-primary);letter-spacing:-.5px;align-items:center;margin:0;font-size:1.4rem;font-weight:800;display:flex}.app-header h1 span{color:var(--accent)}.badge-saas{text-transform:uppercase;color:#10b981;background:#10b98126;border:1px solid #10b9814d;border-radius:999px;padding:.2rem .5rem;font-size:.65rem;font-weight:700}.header-auth{align-items:center;display:flex}.user-profile{align-items:center;gap:.75rem;display:flex}.user-email{color:var(--text-muted);text-overflow:ellipsis;white-space:nowrap;max-width:160px;font-size:.85rem;overflow:hidden}.auth-links{align-items:center;gap:.6rem;display:flex}.btn-header-app{color:#fff;white-space:nowrap;background:linear-gradient(135deg,#10b981 0%,#059669 100%);border-radius:8px;justify-content:center;align-items:center;gap:.3rem;padding:.45rem .9rem;font-size:.85rem;font-weight:600;text-decoration:none;transition:all .2s;display:inline-flex;box-shadow:0 4px 12px #10b98140}.btn-header-app:hover{transform:translateY(-1px);box-shadow:0 6px 16px #10b98159}.btn-header-demo{color:var(--text-primary);white-space:nowrap;background:#ffffff0d;border:1px solid #ffffff26;border-radius:8px;padding:.4rem .8rem;font-size:.85rem;font-weight:600;text-decoration:none;transition:all .2s}.btn-header-demo:hover{background:#ffffff1a;border-color:#ffffff40}.btn-auth-signin,.btn-auth-register,.btn-auth-logout{cursor:pointer;white-space:nowrap;border-radius:8px;justify-content:center;align-items:center;padding:.45rem .85rem;font-size:.85rem;font-weight:600;text-decoration:none;transition:all .2s;display:inline-flex}.btn-auth-signin{color:var(--text-primary);border:1px solid var(--border);background:0 0}.btn-auth-signin:hover{background:#ffffff14}.btn-auth-register{background:var(--accent);color:#0d1117;border:none;box-shadow:0 2px 8px #4ade8033}.btn-auth-register:hover{opacity:.92;transform:translateY(-1px)}.btn-auth-logout{color:#ef4444;background:#ef444426;border:1px solid #ef44444d}.btn-auth-logout:hover{background:#ef444440}.header-nav-links{align-items:center;gap:1.25rem;display:flex}.header-nav-links a{color:var(--text-muted);font-size:.88rem;font-weight:500;text-decoration:none;transition:color .2s}.header-nav-links a:hover{color:var(--text-primary)}.nav-premium-link{background:#10b9811a;border:1px solid #10b9814d;border-radius:999px;align-items:center;gap:.35rem;padding:.3rem .65rem;transition:all .2s;display:inline-flex;color:#34d399!important;font-size:.82rem!important;font-weight:700!important}.nav-premium-link:hover{background:#10b98133;border-color:#10b98180;transform:translateY(-1px)}.nav-price-tag{color:#0d1117;background:#10b981;border-radius:6px;margin-left:.2rem;padding:.1rem .4rem;font-size:.72rem;font-weight:800}@media (max-width:850px){.header-nav-links{display:none}}@media (max-width:600px){.app-header{padding:.65rem .75rem}.app-header h1{font-size:1.15rem}.user-profile,.auth-links{gap:.4rem}.btn-header-app,.btn-auth-signin,.btn-auth-register,.btn-auth-logout{border-radius:7px;padding:.4rem .65rem;font-size:.8rem}.user-email,.btn-header-demo{display:none}}