.code-matrix-page{min-height:100vh;background:radial-gradient(ellipse at 50% 0,#1d3540,var(--bg) 55%)}
.code-matrix-header{max-width:1100px;margin:auto;padding:1rem 1.5rem;display:flex;justify-content:space-between;align-items:center;gap:1.5rem;border-bottom:1px solid var(--line)}
.code-matrix-header .brand{font-size:.95rem;letter-spacing:.1em}
.code-matrix-header .brand small{font-size:.63rem;letter-spacing:.19em}
.code-matrix-header nav{display:flex;gap:1.2rem;flex-wrap:wrap;font-size:.85rem}
.code-matrix-layout{width:min(900px,calc(100% - 2rem));margin:0 auto;padding:clamp(2rem,6vw,4rem) 0}
.code-matrix-intro{max-width:680px;margin:0 auto 1.5rem;text-align:center}
.code-matrix-intro h1{margin-bottom:.7rem}
.code-matrix-intro>p:last-child{max-width:60ch;margin:0 auto}
.code-matrix-panel{max-width:600px;margin:auto;padding:clamp(1rem,4vw,1.6rem);border:1px solid var(--line);border-radius:16px;background:linear-gradient(150deg,#14252d,#111820);box-shadow:0 20px 70px #0006}
.code-matrix-stats{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:.7rem;margin-bottom:1rem}
.code-matrix-stats div{min-width:0;padding:.65rem .7rem;border:1px solid var(--line);border-radius:9px;background:#0e171d}
.code-matrix-stats span,.code-matrix-stats strong{display:block}
.code-matrix-stats span{color:var(--muted);font-size:.7rem}
.code-matrix-stats strong{margin-top:.18rem;font-size:clamp(.75rem,2vw,1rem);overflow-wrap:anywhere}
.code-matrix-panel progress{display:block;width:100%;height:.55rem;margin:0 0 1rem;accent-color:var(--mint)}
.matrix-board{width:min(100%,520px);margin:auto;display:grid;grid-template-columns:repeat(7,minmax(0,1fr));gap:clamp(.16rem,.7vw,.4rem);touch-action:none;user-select:none}
.matrix-board .tile{position:relative;min-width:0;min-height:clamp(34px,10vw,66px);padding:.1rem;border:1px solid #567178;border-radius:8px;background:#20343a;color:#f5f4e9;font-size:clamp(.8rem,4.7vw,1.45rem);font-weight:750;line-height:1;box-shadow:inset 0 0 14px #0004;touch-action:none}
.matrix-board .tile:hover,.matrix-board .tile.selected{border-color:var(--gold);background:#3a3b32}
.matrix-board .tile.hinted{outline:3px solid var(--mint);outline-offset:1px;z-index:1}
.matrix-board .tile.matched{animation:matrix-pop .22s ease-out}
.matrix-board .tile small{position:absolute;right:2px;bottom:2px;font-size:.55rem;color:var(--gold)}
.code-matrix-actions{display:flex;flex-wrap:wrap;justify-content:center;gap:.55rem;margin:1rem 0 .4rem}
.code-matrix-actions button{min-height:44px}
.matrix-message{min-height:1.6em;margin:.8rem 0 .25rem;text-align:center;color:var(--ink);font-weight:600}
.matrix-save-status{min-height:1.4em;margin:0;text-align:center;font-size:.78rem}
.code-matrix-badges{max-width:600px;margin:1.7rem auto 0}
.code-matrix-badges h2{font-size:1.25rem}
.matrix-badge-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:.6rem}
.matrix-badge-grid .badge{padding:.65rem .8rem;border:1px solid var(--line);border-radius:9px;background:var(--panel);color:var(--muted)}
.matrix-badge-grid .badge.unlocked{border-color:#8ab49b;color:var(--mint)}
.code-matrix-help{max-width:600px;margin:1.3rem auto 0;text-align:center;font-size:.85rem}
.code-matrix-footer{max-width:1100px;margin:auto;padding:1rem 1.5rem;display:flex;justify-content:space-between;gap:1rem;border-top:1px solid var(--line);font-size:.82rem}
@keyframes matrix-pop{50%{transform:scale(.84);opacity:.45}}
@media(max-width:600px){.code-matrix-header{padding:.8rem 1rem;align-items:flex-start;flex-direction:column;gap:.55rem}.code-matrix-header nav{gap:1rem}.code-matrix-layout{width:calc(100% - 1.25rem);padding:1.5rem 0}.code-matrix-stats{gap:.35rem}.code-matrix-stats div{padding:.5rem .4rem}.matrix-badge-grid{grid-template-columns:1fr}.code-matrix-footer{padding:1rem;flex-direction:column}}
@media(prefers-reduced-motion:reduce){.matrix-board .tile.matched{animation:none}}

.code-matrix-panel{backdrop-filter:blur(10px);border:1px solid rgba(114,165,175,0.3);box-shadow:0 24px 80px rgba(0,0,0,0.6),0 0 25px rgba(179,229,200,0.12)}.matrix-board .tile{transition:all .18s cubic-bezier(0.16,1,0.3,1);box-shadow:inset 0 0 14px rgba(0,0,0,0.5),0 2px 8px rgba(0,0,0,0.25)}.matrix-board .tile:hover:not(:disabled){transform:scale(1.04);box-shadow:inset 0 0 16px rgba(0,0,0,0.4),0 0 12px var(--mint)}.matrix-board .tile.selected{transform:scale(1.06);box-shadow:0 0 16px var(--gold)}