/* tiny-cosmos v4 — Cards + Canvas */
:root {
  --bg-deep:#080812;
  --bg-card:rgba(255,255,255,0.04);
  --bg-hover:rgba(255,255,255,0.07);
  --text:#e0e0ec;
  --dim:#6a6a82;
  --green:#5cdb7c;
  --red:#ff5c5c;
  --gold:#ffd43b;
  --blue:#4dabf7;
  --purple:#cc5de8;
  --pink:#f783ac;
  --border:rgba(255,255,255,0.07);
  --radius:10px;
  --gap:10px;
  --font:-apple-system,BlinkMacSystemFont,'Segoe UI',system-ui,sans-serif;
  --mono:'SF Mono','Cascadia Code','Fira Code',monospace;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
body{background:var(--bg-deep);color:var(--text);font-family:var(--font);min-height:100vh;padding:10px 12px;display:flex;flex-direction:column;gap:var(--gap);-webkit-font-smoothing:antialiased}

/* Header */
.header{display:flex;justify-content:space-between;align-items:center;padding:4px 0 8px;border-bottom:1px solid var(--border)}
.title{font-size:18px;font-weight:700}
.title-en{font-size:12px;color:var(--dim);font-weight:400;margin-left:6px}
.header-actions{display:flex;gap:4px}

/* Buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:4px;padding:7px 14px;border:1px solid var(--border);border-radius:999px;background:var(--bg-card);color:var(--text);font-size:12px;font-family:var(--font);cursor:pointer;transition:background.15s,opacity.15s;white-space:nowrap}
.btn:hover{background:var(--bg-hover)}
.btn:active{transform:scale(0.97)}
.btn:disabled{opacity:0.3;cursor:not-allowed}
.btn:disabled:hover{background:var(--bg-card)}
.btn-ghost{background:transparent;border-color:transparent;font-size:15px;padding:4px 8px}
.btn-ghost:hover{background:var(--bg-card)}
.btn-blue{background:rgba(77,171,247,0.12);border-color:rgba(77,171,247,0.3);color:var(--blue)}
.btn-blue:hover:not(:disabled){background:rgba(77,171,247,0.2)}
.btn-tier{font-size:11px;padding:5px 10px;width:100%}
.btn-prestige{background:linear-gradient(135deg,rgba(204,93,232,0.2),rgba(247,131,172,0.2));border-color:rgba(247,131,172,0.35);color:var(--pink);font-size:14px;padding:10px 24px;font-weight:600;width:100%}
.btn-prestige:hover:not(:disabled){background:linear-gradient(135deg,rgba(204,93,232,0.3),rgba(247,131,172,0.3))}

/* Canvas */
.cosmos-stage{border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;position:relative;cursor:pointer;background:radial-gradient(ellipse at center,rgba(255,212,59,0.03) 0%,transparent 60%)}
#cosmos-canvas{width:100%;height:100%;display:block}
.click-hint{position:absolute;bottom:14px;left:50%;transform:translateX(-50%);font-size:13px;color:var(--dim);pointer-events:none;animation:pulse 2s ease-in-out infinite}
@keyframes pulse{0%,100%{opacity:.5}50%{opacity:1}}

/* Research bar */
.research-bar{display:flex;align-items:center;gap:10px;padding:10px 14px;background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius)}
.rb-left{display:flex;flex-direction:column;min-width:80px}
.rb-label{font-size:10px;color:var(--dim);white-space:nowrap}
.rb-value{font-family:var(--mono);font-size:18px;font-weight:600;color:var(--blue)}
.rb-hint{font-size:9px;color:var(--dim);white-space:nowrap}
.rb-track{flex:1;height:6px;background:rgba(255,255,255,0.06);border-radius:999px;overflow:hidden}
.rb-fill{height:100%;background:var(--blue);border-radius:999px;transition:width.2s;width:0}
.rb-next{font-size:11px;color:var(--dim);white-space:nowrap}

/* Card grid */
.tier-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(190px,1fr));gap:var(--gap)}

/* Tier card */
.tier-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:12px 14px;transition:border-color.2s}
.tier-card:hover{border-color:rgba(255,255,255,0.14)}
.tier-card.locked{opacity:0.35}
.tier-card.researchable{opacity:0.7;border-color:rgba(77,171,247,0.3);background:rgba(77,171,247,0.03);cursor:pointer}
.tc-head{display:flex;align-items:center;gap:6px;margin-bottom:6px}
.tc-dot{width:9px;height:9px;border-radius:50%;flex-shrink:0}
.tc-name{font-size:13px;font-weight:600}
.tc-en{font-size:10px;color:var(--dim);margin-left:auto}
.tc-count{font-family:var(--mono);font-size:26px;font-weight:700;line-height:1.1;margin-bottom:4px}
.tc-bars{margin-bottom:6px}
.tc-bar-row{display:flex;align-items:center;gap:4px;font-family:var(--mono);font-size:10px;margin-bottom:1px}
.tc-bar-label{width:20px;text-align:right;color:var(--dim);flex-shrink:0}
.tc-bar-track{flex:1;height:3px;background:rgba(255,255,255,0.05);border-radius:2px;overflow:hidden}
.tc-bar-fill{height:100%;border-radius:2px;transition:width.3s}
.tc-bar-fill.prod{background:var(--green)}
.tc-bar-fill.demand{background:var(--red)}
.tc-bar-val{width:44px;text-align:left;font-size:9px;flex-shrink:0}
.prod-text{color:var(--green)}.demand-text{color:var(--red)}
.tc-net{font-family:var(--mono);font-size:10px;margin-bottom:8px}
.tc-net.pos{color:var(--green)}.tc-net.neg{color:var(--red)}
.tc-locked{display:flex;align-items:center;justify-content:center;height:60px;color:var(--dim);font-size:11px}
.tc-btns{display:flex;flex-direction:column;gap:4px}

/* Prestige */
.prestige-panel{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:12px 14px}
.prestige-trigger{display:flex;align-items:center;gap:12px}
.prestige-gain{font-size:13px;color:var(--pink);font-family:var(--mono)}
.prestige-detail{margin-top:10px;padding-top:10px;border-top:1px solid var(--border);flex-direction:column;gap:8px}
.constant-row{display:grid;grid-template-columns:100px 1fr 65px;align-items:center;gap:10px;font-size:12px}
.constant-row input[type=range]{-webkit-appearance:none;appearance:none;width:100%;height:4px;background:rgba(255,255,255,.1);border-radius:2px}
.constant-row input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;width:14px;height:14px;border-radius:50%;background:var(--pink);cursor:pointer;border:2px solid var(--bg-deep)}
.constant-row span:last-child{font-family:var(--mono);font-size:11px;color:var(--dim)}
.cp-info{font-size:11px;color:var(--dim);font-family:var(--mono);text-align:center;margin-top:6px}

/* Milestones */
.milestones-bar{flex-wrap:wrap;gap:6px}
.milestone-badge{font-size:10px;padding:3px 8px;border-radius:999px;background:rgba(255,212,59,.08);border:1px solid rgba(255,212,59,.2);color:var(--gold)}