/* ============ SHOWCASE TEMPLATE v3 ============ */
*{box-sizing:border-box;margin:0;padding:0}
body{min-height:100vh;background:radial-gradient(ellipse at 30% 20%,#1a0a2a 0%,transparent 60%),radial-gradient(ellipse at 70% 80%,#0a1a2a 0%,transparent 60%),#0a0a14;font-family:'Segoe UI',sans-serif;display:grid;place-items:center;padding:20px;overflow:hidden}
.wrap{width:100%;max-width:460px;display:flex;flex-direction:column;align-items:center;gap:18px;position:relative;transition:max-width .4s}
.wrap.wide{max-width:820px}
.ratio-btn{position:absolute;top:-6px;right:0;z-index:20;padding:6px 14px;border:1px solid rgba(180,120,255,.5);border-radius:20px;background:rgba(0,0,0,.6);color:#b478ff;font-family:'Consolas',monospace;font-size:11px;font-weight:700;cursor:pointer;transition:.2s}
.ratio-btn:hover{background:rgba(180,120,255,.2)}
.shimmer-title{font-size:2rem;font-weight:800;letter-spacing:1px;text-align:center;background:linear-gradient(90deg,#b478ff,#00e5ff,#ff6bcb,#b478ff);background-size:300% 100%;-webkit-background-clip:text;background-clip:text;color:transparent;animation:shimmer 7s ease-in-out infinite;filter:drop-shadow(0 4px 12px rgba(0,0,0,.6))}
@keyframes shimmer{0%{background-position:0% 50%}50%{background-position:100% 50%}100%{background-position:0% 50%}}

.device{width:100%;display:flex;flex-direction:column;align-items:center}
.frame{position:relative;width:100%;padding:12px;background:#15151b;border-radius:38px;box-shadow:0 0 0 2px rgba(180,120,255,.3),0 0 40px rgba(180,120,255,.1),0 30px 80px rgba(0,0,0,.7);transition:border-radius .4s,padding .4s}
.notch{position:absolute;top:12px;left:50%;transform:translateX(-50%);width:86px;height:18px;background:#000;border:1px solid #1a1a22;border-top:none;border-radius:0 0 12px 12px;z-index:20;display:flex;align-items:center;justify-content:flex-end;padding-right:10px}
.notch::after{content:"";width:6px;height:6px;border-radius:50%;background:#2a1240;box-shadow:0 0 4px #b478ff}
.stand-neck,.stand-base{display:none}
.device.wide .frame{padding:10px;border-radius:16px}
.device.wide .notch{display:none}
.device.wide .stand-neck{display:block;width:70px;height:46px;background:linear-gradient(#2a2a30,#15151b)}
.device.wide .stand-base{display:block;width:230px;height:14px;background:linear-gradient(#3a3a40,#15151b);border-radius:8px;box-shadow:0 10px 30px rgba(0,0,0,.6)}
.frame-inner{position:relative;background:#050508;border-radius:26px;overflow:hidden;height:calc(100vh - 170px);max-height:calc(94vw * 16 / 9);aspect-ratio:9/16;display:flex;flex-direction:column;margin:0 auto}
.device.wide .frame-inner{aspect-ratio:16/9;height:auto;max-height:70vh;border-radius:10px}

.stage{flex:0 0 52%;background:#0a0a14;display:flex;justify-content:center;align-items:center;padding:16px;position:relative;overflow:hidden}
.stage::before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(180,120,255,.04) 1px,transparent 1px),linear-gradient(90deg,rgba(180,120,255,.04) 1px,transparent 1px);background-size:28px 28px;pointer-events:none}
.btn-wrap{position:relative;z-index:2;width:100%;height:100%;display:grid;place-items:center;opacity:0;transform:translateY(10px);transition:opacity .6s,transform .6s}
.btn-wrap.show{opacity:1;transform:translateY(0)}
.divider{height:2px;background:linear-gradient(90deg,transparent,rgba(180,120,255,.3),transparent);flex-shrink:0}
.code-area{flex:1;background:#0a0d14;position:relative;overflow:hidden;padding:14px 16px}
.code-inner{font-family:'Consolas','Courier New',monospace;font-size:.82rem;line-height:1.5;color:#d7c9ff;white-space:pre-wrap;word-break:break-word;height:100%;overflow:hidden}
.code-inner .kw{color:#b478ff}.code-inner .str{color:#f1fa8c}.code-inner .num{color:#00e5ff}
.code-inner .cmt{color:#5a3a8a;font-style:italic}.code-inner .fn{color:#b478ff}.code-inner .prop{color:#b478ff}
.cursor{display:inline-block;width:8px;height:1em;background:#b478ff;vertical-align:-2px;margin-left:2px;animation:blink 1s steps(1) infinite}
@keyframes blink{50%{opacity:0}}
.arrow{position:absolute;top:36%;transform:translateY(-50%);width:36px;height:36px;border:1px solid rgba(180,120,255,.3);background:rgba(0,0,0,.6);color:#b478ff;font-size:1.3rem;border-radius:50%;cursor:pointer;z-index:10;opacity:0;transition:opacity .25s,background .25s,transform .25s;backdrop-filter:blur(6px)}
.frame-inner:hover .arrow{opacity:1}
.arrow:hover{background:rgba(180,120,255,.3);transform:translateY(-50%) scale(1.1)}
.arrow.left{left:10px}.arrow.right{right:10px}
.brand{position:absolute;bottom:10px;right:14px;font-size:11px;font-weight:800;letter-spacing:3px;color:rgba(180,120,255,.3);z-index:5}

/* ============ 01 CUBE ROTATE ============ */
.cube{perspective:600px}
.cube-btn{position:relative;width:180px;height:60px;transform-style:preserve-3d;transition:transform .8s cubic-bezier(.68,-.55,.27,1.55);cursor:pointer}
.cube:hover .cube-btn{transform:rotateX(-90deg)}
.cube-face{position:absolute;inset:0;display:grid;place-items:center;font-family:'Consolas',monospace;font-size:13px;font-weight:800;letter-spacing:3px;border-radius:10px;backface-visibility:hidden}
.cube-front{background:linear-gradient(135deg,#b478ff,#00e5ff);color:#0a0a14;animation:cube-hue 3s linear infinite}
.cube-top{transform:rotateX(90deg) translateZ(30px);background:linear-gradient(135deg,#00e5ff,#ff6bcb);color:#0a0a14;animation:cube-hue 3s linear infinite reverse}
@keyframes cube-hue{to{filter:hue-rotate(360deg)}}

/* ============ 02 HOLOGRAM PRISM ============ */
.holo{position:relative}
.holo-btn{position:relative;padding:18px 36px;border:none;border-radius:12px;background:linear-gradient(135deg,#ff6bcb,#b478ff,#00e5ff,#ff6bcb);background-size:400% 400%;color:#fff;font-family:'Consolas',monospace;font-weight:800;letter-spacing:3px;font-size:13px;cursor:pointer;transition:.4s;animation:holo-shift 4s ease infinite;box-shadow:0 8px 32px rgba(180,120,255,.4)}
.holo-btn::before{content:"";position:absolute;inset:-4px;border-radius:16px;background:linear-gradient(135deg,#ff6bcb,#b478ff,#00e5ff,#ff6bcb);background-size:400% 400%;animation:holo-shift 4s ease infinite;filter:blur(12px);opacity:.6;z-index:-1}
.holo:hover .holo-btn{transform:translateY(-4px) rotateX(10deg);box-shadow:0 16px 48px rgba(180,120,255,.6)}
@keyframes holo-shift{0%{background-position:0% 50%}50%{background-position:100% 50%}100%{background-position:0% 50%}}

/* ============ 03 VORTEX TUNNEL ============ */
.vtx{position:relative;perspective:800px}
.vtx-btn{position:relative;padding:20px 40px;border:2px solid rgba(180,120,255,.5);border-radius:50px;background:transparent;color:#b478ff;font-family:'Consolas',monospace;font-weight:800;letter-spacing:3px;font-size:13px;cursor:pointer;overflow:hidden;transition:.4s}
.vtx-btn::before{content:"";position:absolute;inset:0;border-radius:50px;background:conic-gradient(#ff6bcb,#b478ff,#00e5ff,#ff6bcb);animation:vtx-spin 2s linear infinite;opacity:0;transition:opacity .4s}
.vtx-btn::after{content:"";position:absolute;inset:4px;border-radius:46px;background:#0a0a14;z-index:0}
.vtx-btn span{position:relative;z-index:1}
.vtx:hover .vtx-btn::before{opacity:1}
.vtx:hover .vtx-btn{transform:scale(1.05);border-color:transparent}
@keyframes vtx-spin{to{transform:rotate(360deg)}}

/* ============ 04 PLASMA CORE ============ */
.plz{position:relative}
.plz-btn{position:relative;padding:18px 36px;border:none;border-radius:12px;background:#0a0a14;color:#fff;font-family:'Consolas',monospace;font-weight:800;letter-spacing:3px;font-size:13px;cursor:pointer;overflow:hidden;transition:.4s}
.plz-btn::before{content:"";position:absolute;inset:-50%;background:radial-gradient(circle,#ff6bcb,#b478ff,#00e5ff,transparent);animation:plz-pulse 2s ease-in-out infinite;filter:blur(20px);opacity:.7}
.plz-btn::after{content:"";position:absolute;inset:0;border-radius:12px;border:2px solid rgba(180,120,255,.6);animation:plz-pulse 2s ease-in-out infinite reverse}
.plz-btn span{position:relative;z-index:1;text-shadow:0 0 12px rgba(255,255,255,.8)}
.plz:hover .plz-btn{transform:scale(1.08);box-shadow:0 0 48px rgba(180,120,255,.6)}
@keyframes plz-pulse{0%,100%{transform:scale(1);opacity:.7}50%{transform:scale(1.2);opacity:.9}}

/* ============ 05 CRYSTAL MATRIX ============ */
.cry{position:relative;perspective:1000px}
.cry-btn{position:relative;padding:18px 36px;border:none;border-radius:8px;background:linear-gradient(135deg,rgba(180,120,255,.3),rgba(0,229,255,.3));backdrop-filter:blur(10px);color:#fff;font-family:'Consolas',monospace;font-weight:800;letter-spacing:3px;font-size:13px;cursor:pointer;transition:.5s;transform-style:preserve-3d;box-shadow:0 8px 32px rgba(0,0,0,.4),inset 0 0 20px rgba(255,255,255,.1)}
.cry-btn::before{content:"";position:absolute;inset:0;border-radius:8px;background:linear-gradient(135deg,transparent 30%,rgba(255,255,255,.3) 50%,transparent 70%);background-size:200% 200%;animation:cry-shine 3s linear infinite}
.cry:hover .cry-btn{transform:rotateY(15deg) rotateX(-10deg);box-shadow:-12px 12px 48px rgba(0,0,0,.6),inset 0 0 30px rgba(255,255,255,.2)}
@keyframes cry-shine{to{background-position:200% 200%}}

/* mobile */
@media (max-width:480px){
  body{padding:10px}.wrap{max-width:100%;gap:12px}
  .shimmer-title{font-size:1.5rem}
  .code-inner{font-size:.75rem}
  .arrow{width:32px;height:32px;font-size:1.1rem}
  .arrow,.frame-inner:hover .arrow{opacity:.7}
}

.demo-banner{position:fixed;bottom:18px;left:50%;transform:translateX(-50%);background:linear-gradient(135deg,#b478ff 0%,#ff6bcb 100%);color:#fff;padding:14px 28px;border-radius:60px;font-weight:800;font-size:15px;text-decoration:none;z-index:9999;box-shadow:0 10px 30px rgba(180,120,255,.4);white-space:nowrap;transition:all .25s ease;font-family:'Segoe UI',sans-serif;animation:demoBannerPulse 2.5s ease-in-out infinite}
.demo-banner:hover{transform:translateX(-50%) translateY(-3px) scale(1.05)}
@keyframes demoBannerPulse{0%,100%{box-shadow:0 10px 30px rgba(180,120,255,.4)}50%{box-shadow:0 10px 30px rgba(180,120,255,.65),0 0 25px rgba(255,107,203,.4)}}
@media (max-width:480px){.demo-banner{font-size:13px;padding:12px 22px;bottom:12px}}