.site-header{position:relative;flex-wrap:wrap}.site-header nav{gap:18px}.tools-menu>summary{list-style:none;cursor:pointer;padding-block:8px;min-height:44px;gap:4px}.tools-menu>summary::after{width:10px;font-size:14px;content:'⌄';margin-left:0}.tools-menu-panel{position:absolute;top:100%;left:0;right:0;z-index:30;padding:24px;background:var(--surface);border:1px solid var(--line);border-radius:12px;box-shadow:0 16px 36px #14263e24;max-height:70dvh;overflow:auto}.tools-menu-groups{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}.tools-menu-groups h2{font-size:15px;margin:16px 0 8px}.tools-menu-groups ul{list-style:none;padding:0;margin:0}.tools-menu-panel a{display:block;padding:8px;min-height:40px;color:var(--ink)}.tools-menu-panel a:hover{background:var(--surface-muted);border-radius:6px}.tools-menu-all{font-weight:650}.qr-preview{background:white}.qr-workspace textarea{width:100%}@media(max-width:1100px){.site-header .local-label{display:none}}@media(max-width:650px){.site-header{padding-block:12px;gap:8px}.site-header nav{width:100%;justify-content:space-between;gap:10px;flex-wrap:wrap}.tools-menu-panel{padding:16px}.tools-menu-groups{grid-template-columns:1fr;gap:4px}.tools-menu-groups ul{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 10px}.tools-menu-panel a{font-size:12px;overflow-wrap:anywhere}}



.tools-menu>summary::after,.tools-menu[open]>summary::after,.language-switch>summary::after,.language-switch[open]>summary::after{content:"";display:block;width:6px;height:6px;border-right:1.5px solid currentColor;border-bottom:1.5px solid currentColor;transform:rotate(45deg);margin:-3px 3px 0 6px;flex:0 0 6px}
.tools-menu[open]>summary::after,.language-switch[open]>summary::after{transform:rotate(225deg);margin-top:3px}
.theme-toggle{display:grid;place-items:center;flex:0 0 40px;width:40px;min-height:44px;padding:8px;border:0;border-radius:8px;background:transparent;color:var(--ink);box-shadow:none}
.theme-toggle:hover{background:var(--surface-muted)}.theme-toggle svg{width:20px;height:20px;stroke-width:1.5}
@media(max-width:1100px){.site-header .local-label{display:inline-flex}.site-header .local-label>span{display:none}}
@media(max-width:650px){.site-header nav{gap:6px}.theme-toggle{flex-basis:36px;width:36px}.site-header .local-label{margin-left:auto}.tools-menu>summary{font-size:12px}}