/* Shared, first-screen header for the four main columns. */
.topbar{position:relative;top:auto;height:76px;padding:0 16px;gap:9px;background:#faf8f1;backdrop-filter:none;z-index:18}
.topbar .breadcrumb{flex:0 0 auto;min-width:0;font-size:0}
.topbar .breadcrumb:before{font-size:20px;letter-spacing:1px;padding-right:0;white-space:nowrap}
.topbar .breadcrumb strong,.topbar .breadcrumb span,#accountButton,#mobileMenu,.header-help{display:none!important}
.topbar .search-button{display:flex;align-items:center;gap:7px;flex:1;min-width:0;width:auto;height:44px;margin:0;padding:0 11px;border:1px solid #ccd6c1;border-radius:24px;background:#eef2e5;color:#567149;font-size:12px;text-align:left;box-shadow:inset 0 1px #fff}
.topbar .search-icon{flex:0 0 18px;width:18px;height:18px}
.topbar .search-label{font-size:12px;line-height:1.5;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.topbar .search-button:hover,.topbar .search-button:focus-visible{border-color:#819975;background:#e7eedb;outline:2px solid #bacaaa;outline-offset:2px}
.topbar .personal-plus{flex:0 0 44px;width:44px;height:44px;border-radius:50%;font-size:30px;background:#315948;color:#fff;border:1px solid #315948;box-shadow:0 3px 8px #26452d12}
.topbar .personal-plus[aria-expanded=true]{background:#e6ecdb;color:#315948;border-color:#799368}
.personal-menu{top:82px;max-height:calc(100dvh - 96px)}
.feature-shortcuts{padding:16px 0 20px;margin:0 0 14px;border-bottom:1px solid #e2e6d8}
.feature-shortcut-title{display:flex;justify-content:space-between;align-items:center;gap:10px;margin:0 0 16px;font-size:12px;color:#7c8c6e}
.feature-shortcut-title>button{font-size:11px;color:#507145;padding:7px 0}
.feature-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:17px 7px}
.feature-tile{display:flex;flex-direction:column;align-items:center;gap:9px;min-width:0;min-height:83px;padding:1px 0;color:#425d3c;font-size:11px;text-align:center}
.feature-icon{display:grid;place-items:center;width:52px;height:52px;border-radius:17px 17px 17px 5px;background:linear-gradient(135deg,#e9efdf,#dce8cf);border:1px solid #d5dfc8;color:#547647;box-shadow:inset 0 1px #ffffff99}
.feature-tile:nth-child(3n+2) .feature-icon{background:linear-gradient(135deg,#f6eddb,#eadcbc);border-color:#e8ddc5;color:#a18042}
.feature-icon svg{display:block;width:28px;height:28px}
.feature-tile:hover .feature-icon,.feature-tile:focus-visible .feature-icon{border-color:#7e9b6e;box-shadow:0 4px 12px #3f643218}
.feature-tile:focus-visible{outline:2px solid #7e9b6e;outline-offset:3px;border-radius:9px}
.tool-page-nav{display:flex;justify-content:space-between;gap:12px;margin:0 0 20px;font-size:12px;color:#6b815a}
.tool-page-nav button{padding:8px 0}
.tool-panel{min-width:0}
.tool-panel[aria-busy=true]{min-height:100px}
.tool-loading,.tool-error{padding:30px 18px;border:1px solid #e1e6d6;border-radius:15px;background:#fffdf7;color:#7b8a6b;font-size:13px;line-height:1.8;text-align:center}
.tool-error button{margin-top:12px}
.tool-directory{padding:20px 17px;border:1px solid #dde5d2;border-radius:17px;background:#fffdf7}
.tool-directory h2{font-family:var(--serif);font-size:23px;font-weight:400;margin:0 0 8px;color:#33513a}
.tool-directory>p{font-size:12px;color:#839173;line-height:1.8;margin:0 0 22px}
.legacy-tuner{display:none!important}
.practice-tuner-entry p{font-size:13px;line-height:1.8;color:#7d8c70}
@media(max-width:360px){.topbar{padding:0 13px;gap:7px;height:72px}.topbar .breadcrumb:before{font-size:18px;letter-spacing:.5px}.topbar .search-button{padding:0 9px;gap:5px}.topbar .search-label{font-size:11px}.feature-grid{gap:14px 5px}.feature-icon{width:48px;height:48px}.feature-tile{font-size:10px}.personal-menu{top:78px}}
@media print{.topbar,.feature-shortcuts,#tools,.practice-tuner-entry{display:none!important}}