:root{--ctl-h:36px}.site-header{background:var(--color-bg,#fff);border-bottom:1px solid var(--color-border,#e2e8f0);padding:1rem 0;position:sticky;top:0;z-index:1000;transition:var(--transition, all .2s ease-in-out)}.container{max-width:1200px;margin:0 auto;padding:0 1rem}.main-nav{display:flex;align-items:center;justify-content:space-between;gap:1rem}.nav-left .logo{font-size:1.5rem;font-weight:700;color:var(--color-text,#1a202c);text-decoration:none;white-space:nowrap}.nav-actions{display:flex;align-items:center;gap:.5rem;flex-wrap:nowrap}.nav-link.home-btn{height:var(--ctl-h);padding:0 .8rem;display:flex;align-items:center;justify-content:center;background:var(--color-bg-secondary,#f7fafc);border:1px solid var(--color-border,#e2e8f0);border-radius:.375rem;color:var(--color-text-secondary,#4a5568);text-decoration:none;font-weight:500;transition:.2s;white-space:nowrap}.nav-link.home-btn:hover{background:var(--color-border-light,#edf2f7);border-color:var(--color-border,#cbd5e0)}.theme-toggle-btn{height:var(--ctl-h);width:var(--ctl-h);padding:0;display:flex;align-items:center;justify-content:center;background:var(--color-bg-secondary,#f7fafc);border:1px solid var(--color-border,#e2e8f0);border-radius:.375rem;color:var(--color-text,#4a5568);cursor:pointer;font-size:1.2rem;transition:.2s;-webkit-tap-highlight-color:transparent;touch-action:manipulation;user-select:none;flex-shrink:0}.theme-toggle-btn:hover{background:var(--color-border-light,#edf2f7);border-color:var(--color-border,#cbd5e0)}.theme-icon{display:inline-block;transition:transform .3s}.theme-toggle-btn:hover .theme-icon{transform:rotate(15deg)}[data-theme=dark] .theme-toggle-btn{background:var(--color-bg-secondary,#1e293b);border-color:var(--color-border,#334155);color:var(--color-text,#f1f5f9)}[data-theme=dark] .theme-toggle-btn:hover{background:var(--color-bg-dark,#334155);border-color:var(--color-border-light,#475569)}.language-switcher{position:relative}.lang-dropdown-btn{height:var(--ctl-h);padding:0 .7rem;display:flex;align-items:center;justify-content:center;background:var(--color-bg,#fff);border:1px solid var(--color-border,#e2e8f0);border-radius:.375rem;color:var(--color-text,#000);cursor:pointer;font-size:.875rem;font-weight:500;gap:.25rem;white-space:nowrap;-webkit-tap-highlight-color:transparent;touch-action:manipulation;user-select:none;position:relative;z-index:1;pointer-events:auto!important;transition:var(--transition, all .2s ease-in-out)}.lang-dropdown-btn:hover{background:var(--color-bg-secondary,#edf2f7);border-color:var(--color-border,#cbd5e0)}.current-lang{pointer-events:none}.dropdown-arrow{font-size:.75rem;transition:transform .2s;pointer-events:none}.lang-dropdown-btn:hover .dropdown-arrow{transform:rotate(180deg)}.language-dropdown-content{position:absolute!important;top:100%!important;right:0!important;background:var(--color-bg,#fff)!important;border:1px solid var(--color-border,#e2e8f0)!important;border-radius:.375rem!important;box-shadow:var(--shadow-md,0 4px 6px -1px rgba(0,0,0,.1),0 2px 4px -1px rgba(0,0,0,.06))!important;min-width:120px!important;z-index:10002!important;display:none!important;margin-top:.25rem!important;overflow:hidden!important;pointer-events:auto!important;visibility:hidden!important;opacity:0!important;transform:none!important;padding:0!important;transition:var(--transition, all .2s ease-in-out)!important}.language-dropdown-content.show{display:block!important;visibility:visible!important;opacity:1!important;transform:none!important;background:var(--color-bg,#fff)!important;border:1px solid var(--color-border,#e2e8f0)!important;border-radius:.375rem!important;box-shadow:var(--shadow-md,0 4px 6px -1px rgba(0,0,0,.1),0 2px 4px -1px rgba(0,0,0,.06))!important}.lang-option{width:100%!important;padding:.5rem .75rem!important;background:0 0!important;border:none!important;border-bottom:1px solid var(--color-border,#e2e8f0)!important;text-align:left!important;cursor:pointer!important;font-size:.875rem!important;color:var(--color-text,#000)!important;-webkit-tap-highlight-color:transparent;touch-action:manipulation;user-select:none;display:block!important;visibility:visible!important;opacity:1!important;position:relative!important;z-index:1;transition:var(--transition, background-color .15s ease)}.lang-option:last-child{border-bottom:none!important}.lang-option:hover{background:var(--color-bg-secondary,#f7fafc)!important}.lang-option:active{background:var(--color-border-light,#edf2f7)!important}@media (max-width:768px){:root{--ctl-h:40px}.site-header{padding:.5rem 0!important}.main-nav{flex-direction:column!important;gap:.75rem!important;align-items:stretch!important;justify-content:flex-start!important}.nav-left{flex:none!important;width:100%!important;order:1!important}.nav-actions{display:flex!important;flex-direction:row!important;gap:.5rem!important;align-items:center!important;width:100%!important;order:2!important;justify-content:flex-start!important}.nav-left .logo{font-size:1.5rem!important;width:100%!important;text-align:left!important}.lang-dropdown-btn,.nav-link.home-btn,.theme-toggle-btn{min-height:44px;height:var(--ctl-h)}.theme-toggle-btn{width:var(--ctl-h);min-width:var(--ctl-h)}.main-content{padding-top:1rem}.container,.main-nav,.nav-actions,.site-header{overflow:visible!important}.language-switcher{position:relative!important;z-index:10000!important;overflow:visible!important}.lang-dropdown-btn{position:relative!important;z-index:10001!important}.language-dropdown-content{z-index:10002!important;position:absolute!important;display:none!important;pointer-events:auto!important;visibility:hidden!important;opacity:0!important;transform:none!important;top:100%!important;right:0!important;left:auto!important;background:var(--color-bg,#fff)!important;border:1px solid var(--color-border,#e2e8f0)!important;border-radius:.375rem!important;box-shadow:var(--shadow-md,0 4px 6px -1px rgba(0,0,0,.1),0 2px 4px -1px rgba(0,0,0,.06))!important;min-width:120px!important;margin-top:.25rem!important;overflow:hidden!important;padding:0!important}.language-dropdown-content.show{display:block!important;visibility:visible!important;opacity:1!important;transform:none!important;background:var(--color-bg,#fff)!important;border:1px solid var(--color-border,#e2e8f0)!important;border-radius:.375rem!important;box-shadow:var(--shadow-md,0 4px 6px -1px rgba(0,0,0,.1),0 2px 4px -1px rgba(0,0,0,.06))!important}.language-dropdown-content.show .lang-option{background:0 0!important;color:var(--color-text,#000)!important;padding:.5rem .75rem!important;margin:0!important;border:none!important;display:block!important;width:100%!important;text-align:left!important;font-size:.875rem!important;cursor:pointer!important;visibility:visible!important;opacity:1!important;position:relative!important;z-index:1!important}.language-dropdown-content.show .lang-option:hover{background:var(--color-bg-secondary,#f7fafc)!important}}@media (max-width:480px){:root{--ctl-h:40px}.site-header{padding:.5rem 0!important}.main-nav{flex-direction:column!important;gap:.5rem!important}.nav-left .logo{font-size:1.3rem!important;width:100%!important;text-align:left!important}.nav-actions{gap:.5rem!important;width:100%!important}.lang-dropdown-btn,.nav-link.home-btn,.theme-toggle-btn{min-height:40px;height:40px}.theme-toggle-btn{width:40px;min-width:40px}}[dir=rtl] .language-dropdown-content{right:auto;left:0}[dir=rtl] .lang-option{text-align:right}