:root{color-scheme:dark;--bg:#06111f;--panel:#0a1728d9;--line:#a6bfde29;--text:#f3f7fb;--muted:#9bacc4;--accent:#58d2ff;--accent-soft:#58d2ff2e}*{box-sizing:border-box}html,body{min-height:100%;margin:0}body{font-family:Bahnschrift,"Segoe UI",sans-serif;background:var(--bg);color:var(--text)}.terrain-shell{display:grid;grid-template-columns:380px minmax(0,1fr);gap:18px;min-height:100vh;padding:18px;background:linear-gradient(135deg,#03101f,#081627 52%,#0d1f2f)}.terrain-sidebar,.terrain-stage{border:1px solid var(--line);box-shadow:0 24px 64px #00000059}.terrain-sidebar{display:flex;flex-direction:column;gap:18px;max-height:calc(100vh - 36px);overflow:auto;padding:24px;border-radius:24px;background:var(--panel)}.terrain-back{color:var(--accent);font-size:12px;text-decoration:none}.terrain-eyebrow{margin:0;color:var(--accent);font-size:12px;font-weight:700;letter-spacing:.24em}.terrain-sidebar h1{margin:0;font-size:38px;line-height:1.04}.terrain-lede{margin:0;color:var(--muted);font-size:14px;line-height:1.55}.terrain-controls{display:grid;gap:14px}.terrain-primary{border:0;border-radius:12px;background:linear-gradient(135deg,#59d9ff,#1b77ff);color:#03111b;cursor:pointer;font-size:15px;font-weight:800;padding:14px}.terrain-field{display:grid;gap:8px;color:var(--muted);font-size:13px}.terrain-field input,.terrain-field select{width:100%;accent-color:var(--accent)}.terrain-field select{border:1px solid var(--line);border-radius:10px;background:#ffffff0d;color:var(--text);padding:10px 12px}.terrain-stats{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.terrain-stats article,.terrain-card{border:1px solid var(--line);border-radius:16px;background:#ffffff08}.terrain-stats article{padding:15px}.terrain-stats span,.terrain-card>p{display:block;margin:0 0 8px;color:var(--muted);font-size:11px;font-weight:700;letter-spacing:.13em;text-transform:uppercase}.terrain-stats strong{font-size:20px;word-break:break-word}.terrain-card{padding:16px}.terrain-card>p{margin-bottom:12px}.terrain-card svg{display:block;width:100%;height:120px;border-radius:12px;background:linear-gradient(180deg,#58d2ff1f,transparent),#050c16}.terrain-timeline{display:grid;gap:8px;max-height:250px;overflow:auto}.terrain-timeline button{width:100%;border:1px solid transparent;border-radius:12px;background:#ffffff0a;color:var(--text);cursor:pointer;padding:11px 12px;text-align:left}.terrain-timeline button.active{border-color:var(--accent);background:var(--accent-soft)}.terrain-timeline button span{display:block}.terrain-timeline button span:first-child{font-size:13px;font-weight:700}.terrain-timeline button span:last-child{color:var(--muted);font-size:11px;margin-top:4px}.terrain-notice{margin:0;border-left:3px solid #e7bd58;background:#e7bd5814;color:#d1bc85;font-size:11px;line-height:1.6;padding:10px}.terrain-stage{position:relative;min-height:720px;overflow:hidden;border-radius:28px;background:#040c15}.terrain-canvas{width:100%;height:100%}.terrain-canvas canvas{display:block;width:100%;height:100%;touch-action:none}.terrain-overlay{position:absolute;top:24px;left:24px;display:grid;gap:6px;min-width:270px;padding:16px 18px;border:1px solid var(--line);border-radius:16px;background:#0a1728de}.terrain-overlay strong{font-size:24px}.terrain-overlay span{color:var(--muted);font-size:13px}.terrain-empty{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;flex-direction:column;gap:8px;padding:24px;background:#06111fe6;color:var(--muted);text-align:center}.terrain-empty[hidden]{display:none}.terrain-empty strong{color:var(--text);font-size:16px}@media(max-width:1100px){.terrain-shell{grid-template-columns:1fr}.terrain-sidebar{max-height:none}.terrain-stage{min-height:560px}}@media(max-width:600px){.terrain-shell{gap:10px;padding:10px}.terrain-sidebar{padding:18px}.terrain-sidebar h1{font-size:30px}.terrain-stage{min-height:420px}.terrain-overlay{top:12px;left:12px;min-width:0;right:12px}.terrain-overlay strong{font-size:18px}}