:root{--profile-bg:#fff;--profile-border:#e5e7eb;--text-primary:#111827;--text-secondary:#6b7280;--text-tertiary:#9ca3af;--hover-bg:#f9fafb;--avatar-size:56px;--avatar-size-sm:40px;--avatar-size-xs:32px;--radius-lg:16px;--radius-md:12px;--radius-full:9999px;--shadow-sm:0 1px 3px rgba(0,0,0,0.1);--shadow-md:0 4px 6px rgba(0,0,0,0.07);--transition:all 0.2s cubic-bezier(0.4,0,0.2,1)}@media (prefers-color-scheme:dark){:root{--profile-bg:#1f2937;--profile-border:#374151;--text-primary:#f9fafb;--text-secondary:#d1d5db;--text-tertiary:#9ca3af;--hover-bg:#374151}}.container,.post{width:100%;max-width:100%;box-sizing:border-box}.user-profile-card{background:var(--profile-bg);border:1px solid var(--profile-border);border-radius:var(--radius-lg);padding:1.5rem;transition:var(--transition);box-shadow:var(--shadow-sm);width:100%;max-width:100%;box-sizing:border-box;margin-bottom:8px}.user-profile-card:hover{box-shadow:var(--shadow-md);border-color:var(--text-tertiary)}.profile-header{display:flex;justify-content:space-between;align-items:flex-start;gap:1rem;margin-bottom:1rem;width:100%;min-width:0}.profile-info{display:flex;align-items:center;gap:0.75rem;flex:1;min-width:0;overflow:hidden}.avatar-link{text-decoration:none;flex-shrink:0}.avatar-wrapper{width:var(--avatar-size);height:var(--avatar-size);border-radius:var(--radius-full);overflow:hidden;border:2px solid var(--profile-border);transition:var(--transition);position:relative}.avatar-wrapper::after{content:'';position:absolute;inset:0;border-radius:var(--radius-full);box-shadow:inset 0 0 0 1px rgba(0,0,0,0.1);pointer-events:none}.avatar-link:hover .avatar-wrapper{transform:scale(1.05);border-color:var(--text-secondary)}.avatar-image{width:100%;height:100%;object-fit:cover;display:block}.user-details{flex:1;min-width:0;overflow:hidden}.user-link{text-decoration:none;display:block}.user-display-name{font-size:1.125rem;font-weight:600;color:var(--text-primary);margin:0 0 0.25rem 0;line-height:1.4;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;transition:var(--transition)}.user-link:hover .user-display-name{color:var(--text-secondary)}.user-handle{font-size:0.875rem;color:var(--text-secondary);margin:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.profile-actions{flex-shrink:1;display:flex;gap:0.5rem;align-items:center}.btn{padding:0.5rem 1rem;border-radius:8px;font-size:0.9rem;font-weight:500;text-align:center;transition:var(--transition);min-width:60px}.profile-description{margin-top:1rem;padding-top:1rem;border-top:1px solid var(--profile-border)}.profile-description p{font-size:0.9375rem;line-height:1.6;color:var(--text-primary);margin:0;word-wrap:break-word}@media (max-width:768px){.global-container{flex-direction:column}.mobile-nav-toggle{display:block;position:fixed;top:1rem;left:1rem;z-index:1000;background:var(--profile-bg);border:1px solid var(--profile-border);padding:0.5rem;border-radius:8px}}@media (max-width:640px){.user-profile-card{padding:1rem;border-radius:var(--radius-md)}.avatar-wrapper{width:var(--avatar-size-sm);height:var(--avatar-size-sm)}.user-display-name{font-size:1rem}.user-handle{font-size:0.8125rem}.profile-info{flex:1 1 100%;min-width:0}.profile-header{flex-direction:column;align-items:stretch;gap:0.75rem}.profile-actions{flex-shrink:1;justify-content:flex-start;margin-left:0}.btn{min-width:50px;font-size:0.75rem;padding:0.4rem}}@media (max-width:540px){.main-content{width:calc(100% - 100px)}.user-profile-card{padding:0.75rem}.avatar-wrapper{width:var(--avatar-size-xs);height:var(--avatar-size-xs)}.user-display-name{font-size:0.875rem}.user-handle{font-size:0.75rem}.profile-info{gap:0.5rem}.profile-header{gap:0.5rem}.user-details{max-width:100px}.profile-actions{gap:0.25rem}.btn{min-width:40px;padding:0.3rem}.profile-description p{font-size:0.875rem}}@media (max-width:480px){.user-profile-card{padding:0.5rem}.user-details{max-width:80px}.profile-info{gap:0.3rem}.profile-header{gap:0.3rem}.profile-description{margin-top:0.5rem;padding-top:0.5rem}}