/* NEURO-LAB shared styles — used by chapters 7-12 */
* { box-sizing: border-box; }
body { margin: 0; padding: 0; background: #000; color: #fff; font-family: 'Courier New', monospace; overflow: hidden; }
canvas { display: block; }
#three-canvas { position: fixed; inset: 0; z-index: 1; }
.stars { position: fixed; inset: 0; z-index: 0; background: radial-gradient(ellipse at center, var(--bg-dark, #150030) 0%, #000 70%); }
.stars::before { content: ''; position: absolute; inset: 0; background-image:
  radial-gradient(2px 2px at 20% 30%, rgba(255,200,100,0.5), transparent),
  radial-gradient(1px 1px at 60% 70%, rgba(150,80,255,0.4), transparent),
  radial-gradient(1.5px 1.5px at 80% 20%, rgba(0,200,255,0.4), transparent);
  background-size: 300px 300px, 200px 200px, 400px 400px; animation: tw 4s ease-in-out infinite;
}
@keyframes tw { 0%,100%{opacity:0.7} 50%{opacity:1} }
#loader { position: fixed; inset: 0; background: radial-gradient(ellipse at center, var(--bg-dark, #150040) 0%, #000 100%); display: flex; flex-direction: column; align-items: center; justify-content: center; z-index: 100; transition: opacity 0.8s; }
#loader h1 { font-size: 56px; letter-spacing: 12px; margin: 0; color: var(--theme, #aa44ff); text-shadow: 0 0 40px var(--theme, #aa44ff); }
#loader .sub { color: #ccc; font-size: 14px; letter-spacing: 6px; margin-top: 18px; }
#loader .bar-wrap { width: 380px; height: 4px; background: rgba(170,68,255,0.15); border: 1px solid rgba(170,68,255,0.4); margin-top: 40px; overflow: hidden; }
#loader .bar { height: 100%; width: 0%; background: linear-gradient(90deg, var(--theme, #aa44ff), #ffd700); transition: width 0.4s; }
#loader .status { color: #ccc; font-size: 11px; margin-top: 16px; letter-spacing: 3px; }
#btn-lang, #btn-objects, #btn-back-menu, #btn-bundle { position: fixed; top: 30px; background: rgba(15,0,30,0.85); border: 2px solid var(--theme, #aa44ff); color: var(--theme, #aa44ff); padding: 8px 16px; font-family: inherit; font-size: 14px; cursor: pointer; z-index: 50; letter-spacing: 2px; text-decoration: none; }
#btn-lang { left: 30px; } #btn-objects { left: 100px; border-color: #ffd700; color: #ffd700; }
#btn-back-menu { left: 50%; transform: translateX(-50%); border-color: #ffd700; color: #ffd700; padding: 8px 22px; font-size: 13px; display: none; }
#btn-back-menu.show { display: block; } #btn-bundle { right: 30px; border-color: #00ddff; color: #00ddff; }
#phase { position: fixed; top: 95px; left: 50%; transform: translateX(-50%); background: rgba(15,5,30,0.96); border: 2px solid var(--theme, #aa44ff); padding: 16px 36px 18px; z-index: 12; text-align: center; box-shadow: 0 0 30px var(--theme-glow, rgba(170,68,255,0.4)); min-width: 580px; display: none; border-radius: 4px; }
#phase.show { display: block; }
#phase .badge { display: inline-block; background: rgba(170,68,255,0.2); border: 1px solid var(--theme, #aa44ff); color: var(--theme, #aa44ff); padding: 2px 10px; font-size: 11px; margin-bottom: 8px; }
#phase .ts { color: #ccc; font-size: 12px; letter-spacing: 4px; }
#phase .title { font-size: 30px; font-weight: bold; margin-top: 8px; color: #ffd700; text-shadow: 0 0 8px #ffd700; }
#phase .sub { font-size: 13px; color: #ccc; margin-top: 8px; }
#phase .progress-wrap { margin-top: 12px; height: 4px; background: rgba(40,10,60,0.6); overflow: hidden; }
#phase .progress-fill { height: 100%; background: linear-gradient(90deg, var(--theme, #aa44ff), #ffd700); width: 0; transition: width 0.3s; }
#color-overlay { position: fixed; inset: 0; pointer-events: none; z-index: 4; transition: background 0.6s; }
#color-overlay.themed { background: radial-gradient(ellipse at center, transparent 50%, var(--theme-glow, rgba(170,68,255,0.1)) 100%); }
.side-panel { position: fixed; top: 100px; width: 280px; background: rgba(15,5,30,0.95); border: 2px solid var(--theme, #aa44ff); padding: 14px; z-index: 13; box-shadow: 0 0 22px var(--theme-glow, rgba(170,68,255,0.45)); display: none; border-radius: 6px; }
.side-panel.show { display: block; }
.side-panel.left { left: 30px; }
.side-panel.right { right: 30px; }
.side-panel .head { color: var(--theme, #aa44ff); font-size: 11px; letter-spacing: 3px; margin-bottom: 10px; padding-bottom: 6px; border-bottom: 1px solid var(--theme, #aa44ff); }
.side-panel .row { display: flex; justify-content: space-between; font-size: 11px; margin: 5px 0; }
.side-panel .l { color: #aaa; } .side-panel .v { color: #fff; font-weight: bold; } .side-panel .v.gold { color: #ffd700; } .side-panel .v.green { color: #00ff66; } .side-panel .v.red { color: #ff5544; }
.side-panel .bar { height: 6px; background: rgba(40,10,60,0.5); margin: 4px 0 6px; border: 1px solid var(--theme, #aa44ff); }
.side-panel .bar .fill { height: 100%; background: var(--theme, #aa44ff); transition: width 0.3s; box-shadow: 0 0 4px currentColor; }
#main-menu { position: fixed; inset: 0; background: linear-gradient(180deg, rgba(15,5,25,0.97), rgba(5,2,12,0.97)); backdrop-filter: blur(8px); z-index: 90; display: flex; flex-direction: column; align-items: center; justify-content: center; padding: 40px; }
#main-menu.hidden { display: none; }
#main-menu h1 { font-size: 70px; letter-spacing: 10px; margin: 0; color: var(--theme, #aa44ff); text-shadow: 0 0 30px var(--theme, #aa44ff); }
#main-menu .subtitle { color: #ccc; font-size: 14px; letter-spacing: 6px; margin-top: 10px; }
#main-menu .tagline { color: #888; font-size: 12px; letter-spacing: 4px; margin-top: 12px; }
#main-menu .chapter-info { color: #ffd700; font-size: 13px; letter-spacing: 4px; margin-top: 16px; border: 1px solid rgba(255,215,0,0.4); padding: 8px 24px; }
#main-menu .grid { display: grid; grid-template-columns: repeat(3, 280px); gap: 18px; margin-top: 40px; }
.menu-card { background: linear-gradient(135deg, rgba(40,10,60,0.85), rgba(20,5,30,0.85)); border: 1.5px solid var(--theme, #aa44ff); color: #fff; padding: 22px 18px; border-radius: 6px; cursor: pointer; transition: all 0.3s; text-align: center; font-family: inherit; }
.menu-card:hover { transform: translateY(-6px); border-color: #ffd700; box-shadow: 0 0 26px var(--theme-glow, rgba(170,68,255,0.5)); }
.menu-card .icon { font-size: 42px; }
.menu-card .title { color: var(--theme, #aa44ff); font-size: 18px; font-weight: bold; letter-spacing: 2px; margin: 10px 0 6px; }
.menu-card .desc { color: #ccc; font-size: 11px; line-height: 1.5; }
.menu-card.featured { border-color: #ffd700; background: linear-gradient(135deg, rgba(60,15,80,0.85), rgba(30,8,40,0.85)); }
#main-menu .footer { margin-top: 30px; color: #888; font-size: 11px; letter-spacing: 2px; }
#main-menu .footer a { color: var(--theme, #aa44ff); text-decoration: none; }
#inspector, #detail-popup { position: fixed; inset: 0; background: rgba(10,2,15,0.94); backdrop-filter: blur(8px); display: none; align-items: center; justify-content: center; padding: 20px; }
#inspector { z-index: 60; } #detail-popup { z-index: 70; }
#inspector.show, #detail-popup.show { display: flex; }
#inspector .panel { width: 100%; max-width: 1100px; max-height: 92vh; overflow-y: auto; background: linear-gradient(180deg, rgba(30,10,50,0.97), rgba(15,5,25,0.97)); border: 2px solid var(--theme, #aa44ff); padding: 30px; box-shadow: 0 0 60px var(--theme-glow, rgba(170,68,255,0.4)); }
#inspector h2 { color: var(--theme, #aa44ff); font-size: 26px; letter-spacing: 3px; margin: 0 0 10px; text-align: center; }
#inspector .sub { color: #aaa; text-align: center; font-size: 12px; margin-bottom: 24px; padding-bottom: 14px; border-bottom: 1px solid var(--theme, #aa44ff); }
#insp-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 14px; }
.obj-card { background: rgba(40,15,80,0.4); border: 1px solid var(--theme, #aa44ff); padding: 16px 14px; cursor: pointer; transition: all 0.2s; text-align: center; border-radius: 4px; }
.obj-card:hover { background: rgba(60,20,100,0.6); transform: translateY(-2px); box-shadow: 0 0 20px var(--theme-glow, rgba(170,68,255,0.3)); }
.obj-card .thumb { width: 100%; height: 110px; display: flex; align-items: center; justify-content: center; margin-bottom: 10px; background: rgba(10,2,15,0.8); font-size: 64px; }
.obj-card .name { color: var(--theme, #aa44ff); font-size: 13px; font-weight: bold; margin-bottom: 4px; }
.obj-card .summary { color: #ddd; font-size: 11px; line-height: 1.4; }
#ins-close, #detail-close { background: transparent; border: 1px solid var(--theme, #aa44ff); color: var(--theme, #aa44ff); padding: 6px 14px; cursor: pointer; font-family: inherit; position: absolute; top: 20px; right: 30px; z-index: 5; }
#detail-popup .panel { background: linear-gradient(180deg, rgba(30,10,50,0.97), rgba(15,5,25,0.97)); border: 2px solid var(--theme, #aa44ff); max-width: 1300px; width: 100%; max-height: 92vh; display: grid; grid-template-columns: 1.2fr 1fr; overflow: hidden; }
#detail-popup .viewer-side { background: #100015; display: flex; flex-direction: column; }
#detail-popup .info-side { padding: 30px; overflow-y: auto; max-height: 92vh; }
#detail-popup h3 { color: var(--theme, #aa44ff); font-size: 26px; margin-bottom: 8px; }
#detail-popup .summary { color: #ddd; font-size: 14px; line-height: 1.6; }