/* GradeKind Tools menu (nav dropdown) */
.nav-tools{position:relative}
.nav-tools>summary{list-style:none;cursor:pointer;display:flex;align-items:center;gap:8px;min-height:44px;padding:10px 14px;border-radius:6px;font-weight:600;font-size:.95rem;color:var(--color-navy-soft,#48586a);user-select:none}
.nav-tools>summary::-webkit-details-marker{display:none}
.nav-tools>summary::after{content:"";width:6px;height:6px;border-right:2px solid currentColor;border-bottom:2px solid currentColor;transform:translateY(-2px) rotate(45deg)}
.nav-tools[open]>summary::after{transform:translateY(1px) rotate(225deg)}
.nav-tools>summary:hover,.nav-tools[open]>summary,.nav-tools.is-current>summary{color:var(--color-teal-dark,#16564f);background:var(--color-teal-tint,#e6f2f0)}
.nav-menu{position:absolute;right:0;top:calc(100% + 6px);z-index:60;width:min(600px,calc(100vw - 24px));box-sizing:border-box;background:#fff;border:1px solid var(--color-border,#dde1e0);border-radius:10px;box-shadow:0 12px 32px rgba(28,43,58,.14);padding:14px;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}
.nav-group{display:flex;flex-direction:column;gap:2px;min-width:0}
.nav-group-title{font-size:.72rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--color-navy-soft,#48586a);margin:0 0 4px;padding:0 10px}
.main-nav .nav-menu a{display:block;min-height:0;padding:8px 10px;border-radius:6px;text-decoration:none;color:var(--color-navy,#1c2b3a);font-weight:600;font-size:.92rem;line-height:1.3;background:none}
.main-nav .nav-menu a span{display:block;font-weight:400;font-size:.8rem;color:var(--color-navy-soft,#48586a);margin-top:1px}
.main-nav .nav-menu a:hover,.main-nav .nav-menu a[aria-current="page"]{background:var(--color-teal-tint,#e6f2f0);color:var(--color-teal-dark,#16564f)}
@media (max-width:700px){
.nav-tools>summary{padding:8px;font-size:.85rem;gap:6px}
.nav-menu{position:fixed;left:12px;right:12px;top:58px;width:auto;grid-template-columns:minmax(0,1fr);gap:10px;max-height:calc(100vh - 72px);overflow:auto}
}
@media print{.nav-tools{display:none!important}}