/* ตัวติดตั้ง: ใช้สีและการ์ดชุดเดียวกับระบบ */
body.installer{background:var(--sb-bg)}
.ins-wrap{min-height:100vh;display:grid;grid-template-columns:380px minmax(0,1fr)}
.ins-side{position:sticky;top:0;height:100vh;color:#fff;padding:2rem 1.8rem;display:flex;flex-direction:column;background:linear-gradient(160deg,#263451 0%,#493b69 60%,#75446a 100%);overflow:hidden}
.ins-side::before{content:"";position:absolute;inset:0;background-image:radial-gradient(rgba(255,255,255,.12) 1px,transparent 1.3px);background-size:18px 18px;mask-image:linear-gradient(180deg,#000,transparent 80%);-webkit-mask-image:linear-gradient(180deg,#000,transparent 80%)}
.ins-side>*{position:relative}
.ins-brand{display:flex;gap:.7rem;align-items:center;font-weight:700}
.ins-brand .sb-logo{margin:0}
.ins-side h1{font-size:1.5rem;font-weight:700;margin:1.6rem 0 .4rem;letter-spacing:-.02em}
.ins-side p{opacity:.8;font-size:.92rem}
.ins-steps{list-style:none;padding:0;margin:1.2rem 0 0}
.ins-steps li{display:flex;gap:.7rem;align-items:center;padding:.55rem 0;opacity:.6}
.ins-steps li .n{width:30px;height:30px;border-radius:50%;border:2px solid rgba(255,255,255,.45);display:grid;place-items:center;font-weight:700;font-size:.85rem;flex:0 0 auto}
.ins-steps li.done{opacity:.9}.ins-steps li.done .n{background:var(--sb-primary);border-color:var(--sb-primary)}
.ins-steps li.cur{opacity:1;font-weight:700}.ins-steps li.cur .n{background:#fff;color:#263451;border-color:#fff}
.ins-side img{margin-top:auto;width:100%;max-height:34vh;object-fit:contain;filter:drop-shadow(0 16px 26px rgba(0,0,0,.35))}
.ins-main{padding:2.5rem 2rem;display:flex;justify-content:center;align-items:flex-start}
.ins-card{width:100%;max-width:720px;background:#fff;border-radius:22px;box-shadow:var(--sb-shadow-lift);padding:2rem 2.2rem}
.ins-card h2{font-size:1.4rem;font-weight:700;letter-spacing:-.02em}
.ins-progress{display:none}
.choice{display:block;border:2px solid var(--sb-border);border-radius:16px;padding:1rem 1.1rem;cursor:pointer;height:100%;transition:border-color .15s,background .15s}
.choice:hover{border-color:var(--sb-primary-200)}
.btn-check:checked+.choice{border-color:var(--sb-primary);background:var(--sb-primary-50)}
.req-row{display:flex;gap:.7rem;align-items:flex-start;padding:.55rem 0;border-bottom:1px solid var(--sb-line)}
.req-row:last-child{border-bottom:0}
.req-row .bi{font-size:1.1rem;margin-top:.1rem}
.run-step{display:flex;gap:.8rem;align-items:center;padding:.7rem .9rem;border-radius:14px;background:#f9fafb;margin-bottom:.5rem}
.run-step .st{width:30px;height:30px;border-radius:50%;display:grid;place-items:center;background:#e5e7eb;color:#6b7280;flex:0 0 auto}
.run-step.doing .st{background:var(--sb-primary-100);color:var(--sb-primary)}
.run-step.ok .st{background:var(--ok);color:#fff}
.run-step.fail{background:var(--bad-50)}.run-step.fail .st{background:var(--bad);color:#fff}
.run-step .msg{font-size:.82rem;color:var(--sb-muted)}
.codebox{background:#0f172a;color:#e2e8f0;border-radius:12px;padding:.7rem .9rem;font-family:ui-monospace,Menlo,Consolas,monospace;font-size:.82rem;word-break:break-all}
@media (max-width:991.98px){
  .ins-wrap{grid-template-columns:minmax(0,1fr)}
  .ins-side{position:relative;height:auto;padding:1.2rem 1.2rem 1rem;border-radius:0 0 24px 24px}
  .ins-side h1{font-size:1.2rem;margin:.9rem 0 .2rem}
  .ins-side p,.ins-steps{display:none}
  .ins-side img{position:absolute;right:.6rem;bottom:.4rem;width:96px;margin:0}
  .ins-progress{display:block;margin-top:.8rem;max-width:70%}
  .ins-progress .bar{height:8px;border-radius:999px;background:rgba(255,255,255,.2);overflow:hidden}
  .ins-progress .bar span{display:block;height:100%;background:#fff;border-radius:999px}
  .ins-main{padding:1rem}
  .ins-card{padding:1.3rem 1.1rem;border-radius:18px}
}