.auth-light-mode{--auth-bg:#f5f7fa;--auth-surface:#fff;--auth-border:#e1e6ec;--auth-primary-text:#1d2129;--auth-secondary-text:#606770;--auth-accent:#0062cc;--auth-accent-glow:rgba(0,98,204,.1);--auth-logo-bg:#f5f7fa}.auth-header{max-width:960px;margin:4em auto;font-family:var(--font-primary);position:relative;overflow:hidden;background-color:var(--auth-surface);border:1px solid var(--auth-border);border-radius:var(--auth-radius);box-shadow:0 15px 35px rgba(0,0,0,.15),0 30px 90px rgba(0,0,0,.3);transition:background-color var(--transition-speed) var(--transition-curve),border-color var(--transition-speed) var(--transition-curve);opacity:0;transform:translateY(25px);animation:auth-fade-in 1.2s cubic-bezier(.16,1,.3,1) forwards}.auth-header::before{content:"";position:absolute;top:-50%;left:-50%;width:200%;height:200%;background-image:radial-gradient(circle,var(--auth-accent-glow) 0%,transparent 35%);animation:auth-aurora 18s linear infinite;z-index:0;opacity:.7;transition:opacity .5s ease}.auth-light-mode .auth-header::before{opacity:1}.auth-header>*{position:relative;z-index:1}.auth-theme-toggle{position:absolute;top:1.5rem;right:1.5rem;width:44px;height:44px;background-color:transparent;border:1px solid var(--auth-border);border-radius:50%;cursor:pointer;display:grid;place-items:center;transition:all var(--transition-speed) var(--transition-curve);z-index:10;perspective:800px}.auth-theme-toggle:hover{border-color:var(--auth-accent);transform:rotate(15deg) scale(1.1)}.auth-theme-toggle .icon-container{width:100%;height:100%;position:relative;transform-style:preserve-3d;transition:transform .7s var(--transition-curve)}.auth-theme-toggle svg{width:22px;height:22px;color:var(--auth-secondary-text);backface-visibility:hidden;position:absolute;top:50%;left:50%;transform:translate(-50%,-50%)}.auth-theme-toggle .moon-icon{transform:translate(-50%,-50%) rotateY(180deg)}.auth-light-mode .icon-container{transform:rotateY(180deg)}.auth-header *{transition:color var(--transition-speed) ease,background-color var(--transition-speed) ease,border-color var(--transition-speed) ease}.auth-identity{display:grid;grid-template-columns:auto 1fr;gap:clamp(1.5rem,4vw,2.5rem);padding:clamp(2rem,5vw,3rem);align-items:center;border-bottom:1px solid var(--auth-border)}.auth-avatar-container{width:clamp(90px,15vw,120px);height:clamp(90px,15vw,120px);flex-shrink:0;position:relative}.auth-avatar{width:100%;height:100%;border-radius:50%;object-fit:cover;border:4px solid var(--auth-border)}.auth-logo{position:absolute;width:clamp(35px,5vw,44px);height:clamp(35px,5vw,44px);right:-10px;bottom:-10px;border-radius:50%;background-color:var(--auth-logo-bg);display:grid;place-items:center;padding:6px;border:3px solid var(--auth-border);box-shadow:0 5px 15px rgba(0,0,0,.2)}.auth-logo img{width:100%;height:auto}.auth-details{display:flex;flex-direction:column;gap:.25rem}.auth-title{font-size:clamp(.9rem,2vw,1rem);font-weight:500;color:var(--auth-secondary-text);letter-spacing:.5px}.auth-name{font-size:clamp(2rem,5vw,3rem);font-weight:800;letter-spacing:-1.5px;color:var(--auth-primary-text);line-height:1.1}.auth-bio{margin-top:.75rem;font-size:clamp(1rem,2vw,1.1rem);color:var(--auth-secondary-text);line-height:1.65;max-width:65ch}.auth-credibility{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:2rem;padding:2rem clamp(1.5rem,5vw,3rem);background:linear-gradient(rgba(0,0,0,.02),rgba(0,0,0,.02))}.auth-light-mode .auth-credibility{background:linear-gradient(rgba(0,0,0,.02),rgba(0,0,0,.03))}.auth-signal{display:flex;align-items:flex-start;gap:1rem}.auth-signal-icon{flex-shrink:0;width:28px;height:28px;color:var(--auth-accent);margin-top:3px}.auth-signal-text h3{font-size:1.05rem;font-weight:600;color:var(--auth-primary-text);margin:0 0 .35em}.auth-signal-text p{font-size:.95rem;color:var(--auth-secondary-text);margin:0;line-height:1.6}.auth-footer{padding:1.25rem clamp(1rem,5vw,2.5rem);border-top:1px solid var(--auth-border);display:flex;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:1.5rem;font-family:var(--font-monospace);font-size:.8rem;color:var(--auth-secondary-text)}.auth-social-icons-container{display:flex;align-items:center;gap:1rem}.auth-social-card-wrapper{perspective:1000px}.auth-social-link{--card-glow-color:var(--auth-accent);position:relative;display:flex;align-items:center;justify-content:center;width:42px;height:42px;border-radius:12px;text-decoration:none;background-color:rgba(255,255,255,.03);border:1px solid var(--auth-border);transform:rotateX(0) rotateY(0);transition:transform .5s var(--transition-curve),background-color .3s ease;overflow:hidden}.auth-light-mode .auth-social-link{background-color:rgba(0,0,0,.03)}.auth-social-link::before{content:"";position:absolute;left:50%;top:50%;width:200%;height:200%;background:radial-gradient(circle,var(--card-glow-color) 0%,transparent 40%);transform:translate(-50%,-50%);opacity:0;filter:blur(25px);transition:opacity .5s var(--transition-curve);z-index:0}.auth-social-link:hover{background-color:rgba(255,255,255,.08);transform:translateY(-5px) scale(1.05) rotateX(15deg) rotateY(10deg)}.auth-light-mode .auth-social-link:hover{background-color:rgba(0,0,0,.05)}.auth-social-link:hover::before{opacity:.3}.auth-social-link.facebook{--card-glow-color:#1877f2}.auth-social-link.instagram{--card-glow-color:#e4405f}.auth-social-link.quora{--card-glow-color:#b92b27}.auth-social-link.tumblr{--card-glow-color:#36465d}.auth-social-link .icon{width:22px;height:22px;color:var(--auth-primary-text);z-index:2;transition:transform .4s var(--transition-curve)}.auth-social-link:hover .icon{transform:scale(1.1)}@media (max-width:768px){.auth-header{margin:2.5em 1em}.auth-theme-toggle{top:1rem;right:1rem}.auth-identity{grid-template-columns:1fr;text-align:center;justify-items:center}.auth-footer{flex-direction:column;align-items:center;text-align:center}}