/* v0.6.0 – readable full-width research tree with hover and modal details. */
.module-research .ref-content-scroll{overflow:hidden}
.research-page{height:calc(100dvh - 116px);min-height:620px;overflow:hidden}
.research-workspace-main{display:grid;grid-template-rows:auto auto minmax(0,1fr);gap:10px;height:100%;min-height:0}
.research-command-header{min-height:96px;padding:14px 18px}
.research-command-header h1{font-size:30px;line-height:1.05}
.research-command-header p{font-size:13px;line-height:1.45}
.research-active-summary span,.research-active-summary small{font-size:10px}
.research-active-summary strong{font-size:16px}
.research-sector-tab{min-height:82px;padding:13px 15px}
.research-sector-tab span{font-size:15px}
.research-sector-tab small{font-size:10px;line-height:1.45}
.research-sector-tab strong{font-size:9px}
.research-tree-shell{grid-template-rows:auto minmax(0,1fr);min-height:0;height:100%}
.research-tree-header{padding:12px 15px}
.research-tree-header h2{font-size:18px}
.research-tree-header>div:first-child>small{font-size:10px;line-height:1.4}
.research-tree-legend,.research-completed-toggle{font-size:9px}
.research-tree-viewport{min-height:0;overflow-y:auto;overflow-x:hidden;scrollbar-gutter:stable;padding-right:2px}
.research-tier-stack{gap:14px;padding:15px}
.research-tier-group{grid-template-columns:128px minmax(0,1fr);gap:14px;padding:13px}
.research-tier-heading span{font-size:9px}
.research-tier-heading strong{font-size:19px}
.research-tier-heading small{font-size:10px;line-height:1.4}
.research-tier-nodes{gap:11px}
.research-tree-node{min-height:138px;padding:13px 14px}
.research-tree-node-top b{font-size:10px}
.research-tree-node-top i{font-size:9px}
.research-tree-node>strong{margin-top:9px;font-size:14px;line-height:1.25;white-space:normal}
.research-tree-node>small{margin-top:6px;font-size:10px;line-height:1.5;-webkit-line-clamp:3}
.research-tree-node footer{margin-top:10px;font-size:9px}
.research-hover-tooltip{position:fixed;z-index:340;width:min(390px,calc(100vw - 28px));pointer-events:none;filter:drop-shadow(0 18px 28px rgba(0,0,0,.48))}
.research-hover-inner{padding:15px 16px;border:1px solid rgba(94,203,255,.42);border-radius:12px;background:linear-gradient(145deg,rgba(10,27,45,.99),rgba(5,13,23,.99));box-shadow:inset 3px 0 0 var(--sector-pioneer)}
.research-hover-inner.sector-civil{box-shadow:inset 3px 0 0 var(--sector-civil)}
.research-hover-inner.sector-military{box-shadow:inset 3px 0 0 var(--sector-military)}
.research-hover-inner>strong{display:block;margin:7px 0 5px;font-size:17px}
.research-hover-inner p{margin:0;color:#a9bdce;font-size:11px;line-height:1.5}
.research-hover-inner>div{display:flex;justify-content:space-between;gap:14px;margin-top:10px;color:#d6e9f7;font-size:10px}
.research-hover-inner>small{display:block;margin-top:8px;color:#7fcff3;font-size:10px;line-height:1.45}
.research-detail-backdrop{position:fixed;z-index:360;inset:0;display:grid;place-items:center;padding:24px;background:rgba(1,6,12,.72);backdrop-filter:blur(7px)}
.research-detail-dialog{width:min(860px,calc(100vw - 34px));max-height:min(760px,calc(100dvh - 42px));overflow:hidden;border:1px solid rgba(94,203,255,.32);border-radius:16px;background:linear-gradient(145deg,rgba(9,25,42,.995),rgba(4,12,22,.995));box-shadow:0 28px 80px rgba(0,0,0,.58)}
.research-detail-dialog>header{display:flex;align-items:flex-start;justify-content:space-between;gap:20px;padding:20px 22px 17px;border-bottom:1px solid rgba(94,203,255,.14);background:radial-gradient(circle at 88% 0,rgba(94,203,255,.14),transparent 38%)}
.research-detail-dialog>header h2{margin:5px 0 6px;font-size:27px}
.research-detail-dialog>header p{margin:0;color:#9db1c2;font-size:12px;line-height:1.5}
.research-detail-dialog>header button{width:34px;height:34px;border:1px solid rgba(94,203,255,.22);border-radius:9px;background:rgba(8,22,37,.82);color:#dcefff;font-size:24px;cursor:pointer}
.research-detail-body{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(280px,.85fr);gap:14px;max-height:calc(100dvh - 190px);padding:16px 18px 19px;overflow:auto}
.research-detail-section{padding:14px;border:1px solid rgba(111,180,225,.14);border-radius:12px;background:rgba(8,20,34,.72)}
.research-detail-section h3{margin:3px 0 10px;font-size:15px}
.research-detail-progress{display:grid;grid-template-columns:1fr auto;gap:8px;align-items:center}
.research-detail-progress i{grid-column:1/-1;display:block;height:8px;border-radius:99px;background:rgba(255,255,255,.08);overflow:hidden}
.research-detail-progress b{display:block;height:100%;background:linear-gradient(90deg,#5ecbff,#9384ff)}
.research-detail-costs,.research-detail-requirements,.research-detail-unlocks{display:grid;gap:8px}
.research-detail-cost{display:grid;grid-template-columns:1fr auto;gap:3px 12px;padding:9px 10px;border-radius:8px;background:rgba(2,10,18,.5)}
.research-detail-cost small{grid-column:1/-1;font-size:9px}
.research-detail-requirements>div{display:flex;gap:9px;align-items:center;padding:8px 9px;border-radius:8px;background:rgba(2,10,18,.45)}
.research-detail-requirements i{display:grid;place-items:center;width:22px;height:22px;border-radius:50%;background:rgba(255,255,255,.08);font-style:normal}
.research-detail-requirements span,.research-detail-requirements small{display:block}
.research-detail-requirements small{color:#8499aa;font-size:9px}
.research-detail-unlocks li{color:#acc1d1;font-size:11px;line-height:1.45}
.research-detail-actions{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:14px}
.research-detail-actions small{color:#8ea4b6;font-size:10px}
@media(max-width:1380px){.research-tier-nodes{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:1030px){.module-research .ref-content-scroll{overflow:auto}.research-page{height:auto;min-height:0;overflow:visible}.research-workspace-main{height:auto}.research-tree-shell{height:auto}.research-tree-viewport{max-height:none;overflow:visible}.research-detail-body{grid-template-columns:1fr}}
@media(max-width:720px){.research-tier-group{grid-template-columns:1fr}.research-tier-nodes{grid-template-columns:1fr}.research-detail-backdrop{padding:10px}.research-detail-dialog{width:100%;max-height:calc(100dvh - 20px)}.research-detail-dialog>header h2{font-size:22px}.research-detail-body{padding:12px}}
.research-detail-body{display:block}
.research-detail-progress,.research-detail-columns>section,.research-detail-unlocks{padding:14px;border:1px solid rgba(111,180,225,.14);border-radius:12px;background:rgba(8,20,34,.72)}
.research-detail-progress>div{display:flex;align-items:center;justify-content:space-between;gap:12px}.research-detail-progress>div span{font-size:11px}.research-detail-progress>div strong{font-size:18px}.research-detail-progress>small{display:block;margin-top:7px;color:#8297aa;font-size:10px}
.research-detail-columns{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:14px}.research-detail-columns>section>.ref-eyebrow,.research-detail-unlocks>.ref-eyebrow{display:block;margin-bottom:9px}
.research-detail-unlocks{margin-top:14px}.research-detail-unlocks>div{display:flex;flex-wrap:wrap;gap:7px}.research-detail-unlocks>div>span{padding:7px 9px;border:1px solid rgba(94,203,255,.16);border-radius:8px;background:rgba(2,10,18,.48);color:#b8d0e1;font-size:10px}
.research-detail-body>footer{display:flex;align-items:center;justify-content:flex-end;gap:9px;margin-top:14px}
@media(max-width:720px){.research-detail-columns{grid-template-columns:1fr}}