.hamburger-btn{position:relative;z-index:1001;width:44px;height:44px;display:flex;flex-direction:column;justify-content:center;align-items:center;gap:6px;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-md);cursor:pointer;padding:10px;transition:all .3s ease;flex-shrink:0}.hamburger-btn:hover{background:var(--surface-hover);border-color:var(--primary)}.hamburger-line{width:20px;height:2px;background:var(--text);border-radius:2px;transition:all .3s ease;transform-origin:center}.hamburger-btn.open{opacity:0;visibility:hidden;pointer-events:none}.sidebar-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background:rgba(0,0,0,.5);-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);z-index:999;opacity:0;visibility:hidden;transition:all .3s ease}.sidebar-overlay.visible{opacity:1;visibility:visible}.sidebar{position:fixed;top:0;right:0;width:280px;max-width:85vw;height:100vh;background:var(--background-secondary);border-left:1px solid var(--border);z-index:1000;display:flex;flex-direction:column;box-shadow:var(--shadow-lg);transform:translateX(100%);transition:transform .35s cubic-bezier(.4,0,.2,1)}body.no-transitions .sidebar{transition:none!important}[dir=ltr] .sidebar{right:auto;left:0;border-left:none;border-right:1px solid var(--border);transform:translateX(-100%)}.sidebar.open,[dir=ltr] .sidebar.open{transform:translateX(0)}.sidebar-header{display:flex;justify-content:space-between;align-items:center;padding:calc(16px + env(safe-area-inset-top, 0px)) 20px 16px;border-bottom:1px solid var(--border);background:var(--surface);min-height:calc(60px + env(safe-area-inset-top, 0px))}.sidebar-title{font-size:1.2rem;font-weight:600;color:var(--text);margin:0;flex:1 1}.sidebar-close-btn{width:36px;height:36px;display:flex;align-items:center;justify-content:center;background:var(--surface-hover);border:1px solid var(--border);border-radius:var(--radius-sm);color:var(--text);cursor:pointer;font-size:1.4rem;transition:all .2s ease;flex-shrink:0}.sidebar-close-btn:hover{background:var(--error);color:white;border-color:var(--error)}.sidebar-nav{flex:1 1;padding:16px 0;overflow-y:auto;overflow-x:hidden}.sidebar-link{display:flex;align-items:center;gap:14px;padding:16px 20px;color:var(--text-secondary);text-decoration:none;transition:all .2s ease;border-right:3px solid transparent;cursor:pointer}[dir=ltr] .sidebar-link{border-right:none;border-left:3px solid transparent}.sidebar-link:hover{background:var(--surface-hover);color:var(--text);border-right-color:var(--primary)}[dir=ltr] .sidebar-link:hover{border-right-color:transparent;border-left-color:var(--primary)}.sidebar-icon{font-size:1.3rem;min-width:32px;display:flex;align-items:center;justify-content:center;flex-shrink:0}.sidebar-text{font-size:.95rem;font-weight:500;flex:1 1}.sidebar-footer{padding:16px 20px;border-top:1px solid var(--border);background:var(--surface);text-align:center}.sidebar-footer-text{font-size:.85rem;color:var(--text-muted);margin:0}@media (max-width:640px){.hamburger-btn{width:40px;height:40px;padding:8px;gap:5px}.hamburger-line{width:18px}.hamburger-btn.open .hamburger-line:first-child{transform:translateY(7px) rotate(45deg)}.hamburger-btn.open .hamburger-line:nth-child(3){transform:translateY(-7px) rotate(-45deg)}.sidebar{width:260px}.sidebar-header{padding:calc(14px + env(safe-area-inset-top, 0px)) 16px 14px;min-height:calc(56px + env(safe-area-inset-top, 0px))}.sidebar-title{font-size:1.1rem}.sidebar-close-btn{width:32px;height:32px;font-size:1.2rem}.sidebar-link{padding:14px 16px;gap:12px}.sidebar-icon{font-size:1.2rem;min-width:28px}.sidebar-text{font-size:.9rem}.sidebar-footer{padding:14px 16px}}.sidebar-section{padding:16px 20px;border-bottom:1px solid var(--border-light,rgba(0,0,0,.05));display:flex;flex-direction:column}.sidebar-section-header{display:flex;align-items:center;gap:14px;color:var(--text);font-weight:500;cursor:pointer;-webkit-user-select:none;-moz-user-select:none;user-select:none;transition:color .2s ease}.sidebar-section-header:hover{color:var(--primary)}.sidebar-toggle-arrow{margin-right:auto;font-size:.8rem;transition:transform .3s ease;opacity:.6}[dir=ltr] .sidebar-toggle-arrow{margin-right:0;margin-left:auto}.sidebar-section.expanded .sidebar-toggle-arrow{transform:rotate(180deg)}[dir=ltr] .sidebar-section-header{gap:12px}.sidebar-section-text{font-size:.9rem;color:var(--text-secondary);line-height:1.5;margin:8px 0 0}.sidebar-contact-list,.sidebar-section-text{-webkit-padding-start:46px;padding-inline-start:46px;animation:sidebarFadeIn .3s ease}.sidebar-contact-list{display:flex;flex-direction:column;gap:12px;margin-top:12px}.sidebar-contact-item{display:flex;align-items:center;gap:10px;color:var(--text-secondary);text-decoration:none;font-size:.9rem;transition:color .2s ease}.sidebar-contact-item:hover{color:var(--primary)}.sidebar-contact-item svg{flex-shrink:0}@keyframes sidebarFadeIn{0%{opacity:0;transform:translateY(-6px)}to{opacity:1;transform:translateY(0)}}.sidebar-notes-list{-webkit-padding-start:46px;padding-inline-start:46px;background:rgba(0,0,0,.02);border-radius:var(--radius-sm);display:flex;flex-direction:column;gap:12px}[dir=rtl] .sidebar-notes-list{margin-right:46px;-webkit-padding-start:12px;padding-inline-start:12px;margin-left:12px}.sidebar-notes-list{margin-top:8px;padding:12px;background:var(--surface-hover);border-radius:var(--radius-md);animation:sidebarFadeIn .3s ease;margin-right:20px;margin-left:20px}.sidebar-note-item{display:flex;gap:6px;font-size:.85rem;line-height:1.4;color:var(--text-secondary)}.sidebar-note-number{font-weight:600;color:var(--primary);min-width:18px}.sidebar-note-title{font-weight:600;color:var(--text)}