/* Site header, mobile menu and footer: the same on every page (tools/site/site_nav.py) */
header.nav{border-bottom:1px solid var(--line);background:rgba(15,19,27,.92);backdrop-filter:blur(12px);position:sticky;top:0;z-index:100}
header.nav .wrap{display:flex;align-items:center;justify-content:space-between;min-height:64px;gap:14px}
.brand{display:flex;align-items:center;gap:9px;font-weight:800;font-size:17px;color:var(--ink);white-space:nowrap}
.brand svg{width:24px;height:24px;flex:none}
.brand b{color:var(--honey)}
.nav-links{margin-left:auto;display:flex;align-items:center;gap:14px;font-size:14px;font-weight:600;color:var(--mute);white-space:nowrap}
.nav-links a:hover{color:var(--ink)}
.mobile-nav-actions{display:none;align-items:center;gap:8px}
.mob-quick-web{display:inline-flex;align-items:center;gap:5px;padding:6px 11px;border-radius:8px;background:var(--sage);color:#082215;font-size:12.5px;font-weight:800;text-decoration:none}
.nav-toggle{display:inline-flex;flex-direction:column;justify-content:center;align-items:center;width:38px;height:38px;border-radius:8px;background:var(--card);border:1px solid var(--line);cursor:pointer;padding:8px;gap:5px;color:var(--ink)}
.nav-toggle span{display:block;width:18px;height:2px;background:currentColor;border-radius:2px;transition:all .2s ease}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.mobile-menu{display:none;position:fixed;top:65px;left:0;right:0;bottom:0;background:rgba(15,19,27,.97);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border-top:1px solid var(--line);padding:18px;overflow-y:auto;z-index:99;animation:mobSlide .2s ease-out}
@keyframes mobSlide{from{opacity:0;transform:translateY(-8px)}to{opacity:1;transform:translateY(0)}}
.mobile-menu.open{display:block}
.mob-inner{max-width:520px;margin:0 auto;display:flex;flex-direction:column;gap:14px;padding-bottom:30px}
.mob-btn-hero{display:flex;align-items:center;gap:12px;padding:14px 16px;background:linear-gradient(135deg, rgba(111,214,166,.18), rgba(246,185,65,.14));border:1px solid rgba(111,214,166,.4);border-radius:14px;text-decoration:none;color:var(--ink)}
.mob-btn-hero b{display:block;font-size:15px;color:var(--sage)}
.mob-btn-hero small{display:block;color:var(--mute);font-size:12px}
.mob-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.mob-card-link{display:flex;align-items:center;gap:10px;padding:11px 12px;background:var(--card);border:1px solid var(--line);border-radius:12px;text-decoration:none;font-weight:700;font-size:13.5px;color:var(--ink)}
.mob-card-link:hover{border-color:var(--honey);background:var(--raise)}
.mob-extra{display:flex;flex-direction:column;gap:4px;background:var(--card);border:1px solid var(--line);border-radius:12px;padding:10px 14px}
.mob-extra a{display:flex;align-items:center;gap:10px;padding:8px 0;font-size:13.5px;font-weight:600;color:var(--mute);text-decoration:none;border-bottom:1px solid var(--line)}
.mob-extra a:last-child{border-bottom:none}
@media (max-width: 960px){.nav-links{display:none}.mobile-nav-actions{display:flex}}
@media (max-width: 480px){.mob-grid{grid-template-columns:1fr}}
.btn.green{background:var(--sage);color:#082215;border-color:var(--sage)}
.btn.green:hover{filter:brightness(1.08)}
footer{border-top:1px solid var(--line);padding:36px 0 48px;margin-top:50px;color:var(--faint);font-size:13.5px;background:var(--bg2)}
@media (max-width:900px){.nav-links{display:none}.mobile-nav-actions{display:flex}}
.mobile-menu{top:100%;bottom:auto;height:calc(100vh - 64px);height:calc(100dvh - 64px);background:var(--bg);overscroll-behavior:contain}
.mob-quick-web{white-space:nowrap}
@media (max-width:440px){.brand{font-size:15px;gap:7px}.mob-quick-web{padding:5px 8px}.mobile-nav-actions{gap:6px}}
@media (max-width:400px){.brand b{display:none}}
@media (max-width:340px){.brand{font-size:14px}.brand svg{width:20px;height:20px}.mob-quick-web{font-size:11.5px;padding:5px 7px}}
:root[data-theme="light"] header.nav{background:rgba(245,243,238,.9)}
:root[data-theme="light"] .mobile-menu{background:var(--bg)}
:root[data-theme="light"] .btn.green,:root[data-theme="light"] .mob-quick-web{color:#fff}
:root[data-theme="light"] footer{background:var(--bg2)}
.navmenu{position:relative}
.navmenu>summary{list-style:none;cursor:pointer;display:inline-flex;align-items:center;gap:4px}
.navmenu>summary::-webkit-details-marker{display:none}
.navmenu>summary::after{content:"▾";font-size:11px;opacity:.7}
.navmenu .menu{position:absolute;top:calc(100% + 12px);left:50%;transform:translateX(-50%);min-width:220px;background:var(--card);border:1px solid var(--line);border-radius:12px;padding:6px;box-shadow:0 18px 40px -14px rgba(0,0,0,.45);z-index:200;display:flex;flex-direction:column}
.navmenu .menu a{padding:8px 11px;border-radius:8px;white-space:nowrap;font-weight:600;color:var(--ink)}
.navmenu .menu a:hover{background:var(--raise)}
.nav-support{color:#ff7a78!important;font-weight:700}.nav-support:hover{color:#ff5e5b!important}
.mob-support{display:none;align-items:center;justify-content:center;width:32px;height:32px;border-radius:8px;border:1px solid var(--line);color:#ff5e5b;font-size:16px;text-decoration:none;flex-shrink:0}
@media (max-width:900px){.mob-support{display:inline-flex}}