.research-page { --sector-civil:#5fd7a0; --sector-pioneer:#63cfff; --sector-military:#ff766d; }
.research-workspace-grid { min-height:calc(100dvh - 116px); align-items:start; }
.research-workspace-main { grid-template-rows:auto auto auto; gap:10px; min-height:0; align-content:start; }
.research-command-header {
  min-height:108px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  padding:16px 19px;
  border:1px solid rgba(111,213,255,.18);
  border-radius:14px;
  background:radial-gradient(circle at 18% 20%,rgba(92,203,255,.13),transparent 32%),linear-gradient(135deg,rgba(10,24,39,.98),rgba(5,12,22,.98));
}
.research-command-header h1{margin:4px 0 5px;font-size:28px}.research-command-header p{margin:0;color:var(--text-2);font-size:14px}
.research-active-summary{min-width:260px;padding:12px 14px;border:1px solid rgba(111,213,255,.2);border-radius:11px;background:rgba(5,12,22,.68)}
.research-active-summary span,.research-active-summary small{display:block;color:var(--text-2);font-size:14px}.research-active-summary strong{display:block;margin:5px 0;font-size:15px}
.research-sector-tabs{display:grid;grid-template-columns:repeat(3,1fr);gap:8px}
.research-sector-tab{position:relative;min-height:74px;padding:12px 14px;text-align:left;border:1px solid rgba(127,180,220,.16);border-radius:11px;background:rgba(11,22,35,.88);color:var(--text-1);cursor:pointer;overflow:hidden}
.research-sector-tab::before{content:"";position:absolute;inset:0 auto 0 0;width:3px;background:#67839b}.research-sector-tab:nth-child(1)::before{background:var(--sector-civil)}.research-sector-tab:nth-child(2)::before{background:var(--sector-pioneer)}.research-sector-tab:nth-child(3)::before{background:var(--sector-military)}
.research-sector-tab span,.research-sector-tab small,.research-sector-tab strong{display:block}.research-sector-tab span{font-size:14px;font-weight:750}.research-sector-tab small{margin-top:4px;color:var(--text-2);font-size:14px;line-height:1.3;padding-right:92px}.research-sector-tab strong{position:absolute;right:10px;top:10px;color:#7892a8;font-size:14px}
.research-sector-tab.active{border-color:rgba(92,203,255,.66);background:linear-gradient(135deg,rgba(17,43,66,.95),rgba(8,20,34,.94));box-shadow:0 0 0 1px rgba(92,203,255,.12),0 10px 24px rgba(0,0,0,.24)}

/* v0.5.7 – vertical research progression without dependency lines. */
.research-tree-shell{display:grid;grid-template-rows:auto auto;border:1px solid rgba(105,184,239,.2);border-radius:14px;background:linear-gradient(180deg,rgba(6,17,30,.95),rgba(4,11,20,.96));overflow:hidden}
.research-tree-header{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:11px 13px;border-bottom:1px solid rgba(105,184,239,.13)}
.research-tree-header h2{margin:2px 0 0;font-size:16px}.research-tree-header>div:first-child>small{display:block;margin-top:3px;color:#7890a4;font-size:14px}
.research-tree-controls{display:flex;align-items:center;justify-content:flex-end;gap:14px;flex-wrap:wrap}
.research-tree-legend{display:flex;align-items:center;gap:11px;color:#7f96a9;font-size:14px}.research-tree-legend span{display:flex;align-items:center;gap:5px}.research-tree-legend span::before{content:"";width:7px;height:7px;border-radius:50%;background:#53687a}.research-tree-legend .completed::before{background:var(--green)}.research-tree-legend .available::before{background:var(--cyan)}.research-tree-legend .locked::before{background:#53687a}
.research-completed-toggle{min-height:32px;padding:6px 10px;border:1px solid rgba(94,203,255,.22);border-radius:8px;background:rgba(10,28,45,.82);color:#bdd3e4;font-size:14px;cursor:pointer}.research-completed-toggle:hover{border-color:rgba(94,203,255,.5);color:#eff9ff}.research-completed-toggle.active{border-color:rgba(77,224,170,.35);color:var(--green);background:rgba(10,42,36,.72)}
.research-tree-viewport{overflow:visible;background-image:linear-gradient(rgba(94,203,255,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(94,203,255,.035) 1px,transparent 1px);background-size:42px 42px}
.research-tier-stack{display:grid;gap:12px;padding:14px}
.research-tier-group{display:grid;grid-template-columns:116px minmax(0,1fr);gap:13px;padding:12px;border:1px solid rgba(105,184,239,.12);border-radius:12px;background:linear-gradient(135deg,rgba(9,23,38,.86),rgba(5,14,25,.88))}
.research-tier-heading{display:flex;flex-direction:column;justify-content:center;padding:10px 12px;border-right:1px solid rgba(105,184,239,.13)}.research-tier-heading span{color:#6f91ad;font-size:14px;letter-spacing:.12em}.research-tier-heading strong{margin-top:5px;font-size:17px}.research-tier-heading small{margin-top:5px;color:#70869a;font-size:14px}
.research-tier-nodes{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:9px;align-items:stretch}
.research-tree-node{position:relative;min-width:0;min-height:112px;padding:10px 11px;text-align:left;border:1px solid rgba(127,180,220,.15);border-radius:10px;background:linear-gradient(145deg,rgba(14,28,43,.98),rgba(8,17,29,.98));color:var(--text-1);cursor:pointer;box-shadow:0 8px 20px rgba(0,0,0,.16);transition:transform var(--fast),border-color var(--fast),filter var(--fast)}
.research-tree-node:hover{transform:translateY(-1px);border-color:rgba(92,203,255,.38)}.research-tree-node.selected{border-color:var(--amber);box-shadow:0 0 0 1px rgba(244,189,88,.14),0 10px 24px rgba(0,0,0,.26)}.research-tree-node.completed{border-color:rgba(77,224,170,.38)}.research-tree-node.available{border-color:rgba(94,203,255,.48)}.research-tree-node.locked{opacity:.58;filter:saturate(.68)}.research-tree-node.active-project{border-color:rgba(147,132,255,.72);box-shadow:0 0 20px rgba(147,132,255,.12)}
.research-tree-node-top{display:flex;align-items:center;justify-content:space-between;gap:8px}.research-tree-node-top b{color:var(--amber);font-size:14px}.research-tree-node-top i{color:#7d95aa;font-size:14px;font-style:normal}.research-tree-node>strong{display:block;margin-top:7px;font-size:14px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.research-tree-node>small{display:-webkit-box;margin-top:4px;color:#91a5b7;font-size:14px;line-height:1.35;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.research-tree-node footer{display:flex;align-items:center;justify-content:space-between;gap:8px;margin-top:8px;color:#76a7ca;font-size:14px}.research-tree-node footer em{color:#9a8cff;font-style:normal;text-align:right}
.research-tree-empty{display:grid;gap:6px;place-items:center;min-height:180px;padding:24px;text-align:center;color:#9eb1c2}.research-tree-empty strong{font-size:15px}.research-tree-empty small{max-width:440px;color:#71879a;font-size:14px;line-height:1.5}

.research-inspector{overflow:auto;position:sticky;top:0;max-height:calc(100dvh - 88px)}.research-inspector-hero{min-height:112px;padding:17px;border:1px solid rgba(127,180,220,.16);border-radius:11px;background:radial-gradient(circle at 80% 10%,rgba(147,132,255,.24),transparent 40%),linear-gradient(150deg,rgba(10,25,42,.96),rgba(6,13,23,.96))}.research-inspector-hero.sector-civil{background:radial-gradient(circle at 80% 10%,rgba(77,224,170,.22),transparent 40%),linear-gradient(150deg,rgba(10,25,42,.96),rgba(6,13,23,.96))}.research-inspector-hero.sector-military{background:radial-gradient(circle at 80% 10%,rgba(255,93,105,.22),transparent 40%),linear-gradient(150deg,rgba(10,25,42,.96),rgba(6,13,23,.96))}
.research-inspector-hero span,.research-inspector-hero small{display:block;color:var(--text-2);font-size:14px}.research-inspector-hero strong{display:block;margin:7px 0;font-size:20px}.research-progress{padding:10px 2px}.research-progress span{display:flex;align-items:center;justify-content:space-between}.research-progress strong{font-size:16px}.research-progress small{color:#8297aa}.research-progress i{display:block;height:7px;margin-top:8px;border-radius:99px;background:rgba(255,255,255,.08);overflow:hidden}.research-progress b{display:block;height:100%;background:linear-gradient(90deg,#5ecbff,#9384ff)}
@media(max-width:1380px){.research-workspace-grid{grid-template-columns:minmax(0,1fr) 310px}.research-tier-nodes{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:1030px){.research-workspace-grid{grid-template-columns:1fr}.research-command-header{align-items:flex-start;flex-direction:column}.research-active-summary{width:100%}.research-inspector{position:relative;max-height:none}.research-tier-nodes{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:720px){.research-sector-tabs{grid-template-columns:1fr}.research-command-header h1{font-size:24px}.research-tree-header{align-items:flex-start;flex-direction:column}.research-tree-controls{justify-content:flex-start}.research-tier-group{grid-template-columns:1fr}.research-tier-heading{border-right:0;border-bottom:1px solid rgba(105,184,239,.13)}.research-tier-nodes{grid-template-columns:1fr}}



/* v0.15.0 — progression stage overview. */
.progression-overview{display:grid;gap:12px;padding:15px 16px;border:1px solid rgba(147,132,255,.25);border-radius:14px;background:radial-gradient(circle at 12% 20%,rgba(147,132,255,.13),transparent 34%),linear-gradient(145deg,rgba(8,21,36,.97),rgba(5,13,24,.97))}
.progression-overview>header{display:flex;align-items:center;justify-content:space-between;gap:18px}.progression-overview>header h2{margin:3px 0 4px;font-size:20px}.progression-overview>header p{margin:0;color:#86a0b5;font-size:14px}.progression-overview>header>strong{display:grid;place-items:center;min-width:70px;height:54px;border:1px solid rgba(147,132,255,.3);border-radius:11px;background:rgba(42,34,90,.42);font-size:22px;color:#c9c2ff}
.progression-stage-track{display:grid;grid-template-columns:repeat(6,minmax(0,1fr));gap:8px}.progression-stage-track article{display:grid;grid-template-columns:28px minmax(0,1fr);gap:7px;padding:10px;border:1px solid rgba(111,184,231,.13);border-radius:10px;background:rgba(5,16,28,.76);opacity:.58}.progression-stage-track article.current{opacity:1;border-color:rgba(94,203,255,.5);box-shadow:inset 0 0 0 1px rgba(94,203,255,.08)}.progression-stage-track article.complete{opacity:1;border-color:rgba(77,224,170,.3)}.progression-stage-track article>span{display:grid;place-items:center;width:28px;height:28px;border-radius:8px;background:rgba(86,101,190,.25);font-size:14px;font-weight:800}.progression-stage-track article.complete>span{background:rgba(35,126,95,.35);color:#86efc6}.progression-stage-track article strong,.progression-stage-track article small{display:block}.progression-stage-track article strong{font-size:14px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.progression-stage-track article small{margin-top:3px;color:#718da3;font-size:14px}.progression-stage-track article>i{grid-column:1/-1;height:4px;border-radius:99px;background:rgba(255,255,255,.06);overflow:hidden}.progression-stage-track article>i b{display:block;height:100%;background:linear-gradient(90deg,#5ecbff,#9384ff)}.progression-stage-track article.complete>i b{background:#4de0aa}
.progression-overview>footer{display:grid;grid-template-columns:120px minmax(0,1fr);align-items:start;gap:10px;padding-top:9px;border-top:1px solid rgba(111,184,231,.11)}.progression-overview>footer>span{color:#6f91ad;font-size:14px;letter-spacing:.12em}.progression-overview>footer>div{display:flex;gap:7px;flex-wrap:wrap}.progression-overview>footer em{display:flex;gap:6px;padding:6px 9px;border:1px solid rgba(111,184,231,.14);border-radius:8px;background:rgba(5,16,28,.72);color:#a8bdcc;font-size:14px;font-style:normal}.progression-overview>footer em b{color:#77cfff}
@media(max-width:1450px){.progression-stage-track{grid-template-columns:repeat(3,minmax(0,1fr))}}@media(max-width:760px){.progression-stage-track{grid-template-columns:1fr}.progression-overview>footer{grid-template-columns:1fr}}