:root{--detail-blue:#075cf0;--detail-navy:#071b3f;--detail-ink:#142747;--detail-muted:#65758b;--detail-line:#dce7f3;--detail-bg:#f5f8fd;--detail-soft:#eef5ff;--detail-green:#18a957;--detail-shadow:0 6px 18px rgba(17,48,91,.09)}
*{box-sizing:border-box}
html{background:var(--detail-bg);color:var(--detail-ink);font-family:Arial,"Malgun Gothic",sans-serif;scrollbar-width:none}
html::-webkit-scrollbar{display:none}
body{min-width:320px;margin:0;background:var(--detail-bg)}
button,select,a{font:inherit}
.sim-plan-detail-page{min-height:100vh;padding-bottom:82px}
.detail-shell{width:min(100%,430px);min-height:100vh;margin:0 auto;background:var(--detail-bg)}
.detail-header{position:sticky;z-index:20;top:0;display:grid;grid-template-columns:auto 1fr auto;align-items:center;height:50px;border-bottom:1px solid var(--detail-line);background:rgba(255,255,255,.97);padding:0 10px;backdrop-filter:blur(10px)}
.detail-back{display:grid;place-items:center;width:28px;height:34px;color:var(--detail-navy);text-decoration:none;font-size:24px;line-height:1}
.detail-brand{overflow:hidden;color:var(--detail-navy);font-size:12px;font-weight:900;letter-spacing:-.2px;text-decoration:none;white-space:nowrap;text-overflow:ellipsis}
.detail-header-tools{display:flex;align-items:center;gap:5px}
.detail-header-tools form{margin:0}
.detail-header-tools label,.detail-resume{display:flex;align-items:center;height:32px;border:1px solid #cbd9ea;border-radius:18px;background:#fff;color:var(--detail-navy);text-decoration:none;font-size:10px;font-weight:800}
.detail-header-tools label{gap:3px;padding:0 7px}
.detail-header-tools select{max-width:63px;border:0;outline:0;background:transparent;color:inherit;font-size:10px;font-weight:800}
.detail-resume{padding:0 8px}
.detail-main{display:grid;gap:10px;padding:9px 10px 14px}
.detail-title h1{margin:0;color:var(--detail-navy);font-size:20px;letter-spacing:-.7px}
.detail-title p{margin:3px 0 0;color:var(--detail-muted);font-size:10px}
.detail-plan-card{border:1.5px solid var(--detail-blue);border-radius:16px;background:linear-gradient(145deg,#fff,#f3f8ff);padding:12px;box-shadow:var(--detail-shadow)}
.detail-plan-head{display:grid;grid-template-columns:44px 1fr auto;align-items:center;gap:10px}
.detail-plan-icon{display:grid;place-items:center;width:44px;height:44px;border-radius:50%;background:var(--detail-blue);color:#fff;font-size:23px;font-weight:900}
.detail-plan-name{min-width:0}
.detail-plan-name h2{margin:0;color:var(--detail-navy);font-size:21px;letter-spacing:-.5px}
.detail-plan-name span{display:block;margin-top:2px;color:var(--detail-muted);font-size:9px;font-weight:700}
.detail-price{color:var(--detail-navy);font-size:20px;font-weight:900;white-space:nowrap}
.detail-price small{display:block;color:var(--detail-muted);font-size:8px;text-align:right}
.detail-plan-data{display:grid;grid-template-columns:auto 1fr;align-items:center;gap:6px;margin:10px 0 0;border-top:1px solid var(--detail-line);padding-top:8px;color:var(--detail-navy)}
.detail-plan-data b{font-size:13px}
.detail-plan-data span{font-size:9px}
.detail-plan-meta{display:flex;flex-wrap:wrap;gap:4px 8px;margin-top:6px;color:var(--detail-muted);font-size:8px}
.detail-data-ribbon{margin:8px 0 -2px;border-radius:999px;background:#e3edff;padding:3px 8px;color:var(--detail-blue);font-size:8px;font-weight:900;text-align:center}
.detail-promo{display:grid;grid-template-columns:28px 1fr;gap:8px;border:1px solid #c8e3f9;border-radius:13px;background:#edf8ff;padding:10px}
.detail-promo>span{display:grid;place-items:center;width:24px;height:24px;border-radius:50%;background:var(--detail-blue);color:#fff;font-weight:900}
.detail-promo strong{display:block;color:var(--detail-navy);font-size:10px}
.detail-promo p{margin:3px 0 0;color:var(--detail-muted);font-size:8px;line-height:1.45}
.detail-accordion{overflow:hidden;border:1px solid var(--detail-line);border-radius:13px;background:#fff;box-shadow:var(--detail-shadow)}
.detail-accordion summary{display:flex;align-items:center;justify-content:space-between;min-height:43px;padding:0 12px;color:var(--detail-navy);cursor:pointer;font-size:10px;font-weight:900;list-style:none}
.detail-accordion summary::-webkit-details-marker{display:none}
.detail-accordion summary:after{content:"⌄";color:var(--detail-blue);font-size:14px;transition:transform .2s ease}
.detail-accordion[open] summary:after{transform:rotate(180deg)}
.detail-accordion[open] summary{border-bottom:1px solid var(--detail-line)}
.detail-accordion-body{display:grid;gap:9px;padding:10px 12px 12px}
.detail-specs,.detail-billing{display:grid;gap:5px;margin:0}
.detail-specs div,.detail-billing div{display:flex;align-items:baseline;justify-content:space-between;gap:12px}
.detail-specs dt,.detail-billing dt{color:var(--detail-muted);font-size:8px}
.detail-specs dd,.detail-billing dd{margin:0;color:var(--detail-navy);font-size:8px;font-weight:900;text-align:right}
.detail-billing{border-top:1px solid var(--detail-line);padding-top:8px}
.detail-billing div:last-child{margin-top:2px;border-top:1px solid var(--detail-line);padding-top:6px}
.detail-billing div:last-child dt,.detail-billing div:last-child dd{color:var(--detail-navy);font-size:10px;font-weight:900}
.detail-billing .discount{color:var(--detail-blue)}
.detail-note-list{display:grid;gap:6px;margin:0;padding:0;list-style:none}
.detail-note-list li{position:relative;padding-left:11px;color:var(--detail-muted);font-size:8px;line-height:1.45}
.detail-note-list li:before{position:absolute;left:0;content:"•";color:var(--detail-blue);font-weight:900}
.detail-policy-grid{display:grid;grid-template-columns:1fr 1fr;gap:7px}
.detail-policy-grid section{border-radius:9px;background:#f6f9fd;padding:8px}
.detail-policy-grid h3{margin:0 0 5px;color:var(--detail-navy);font-size:9px}
.detail-policy-grid ul{display:grid;gap:4px;margin:0;padding-left:13px;color:var(--detail-muted);font-size:7.5px;line-height:1.35}
.detail-policy-warning{border-radius:9px;background:#fff8e8;padding:8px;color:#765100;font-size:8px;line-height:1.4}
.detail-actions{position:fixed;z-index:30;right:0;bottom:0;left:0;display:grid;grid-template-columns:minmax(0,1fr) 114px;gap:8px;width:min(100%,430px);margin:auto;border-top:1px solid var(--detail-line);background:rgba(255,255,255,.97);padding:9px 10px max(9px,env(safe-area-inset-bottom));box-shadow:0 -8px 22px rgba(17,48,91,.12);backdrop-filter:blur(10px)}
.detail-actions a{display:flex;align-items:center;justify-content:center;min-height:48px;border:1px solid var(--detail-blue);border-radius:12px;color:var(--detail-blue);font-size:11px;font-weight:900;text-align:center;text-decoration:none}
.detail-actions .primary{background:linear-gradient(135deg,#075cf0,#084ad1);color:#fff}
.detail-runtime-status{display:none}
@media(min-width:431px){.detail-shell{border-right:1px solid var(--detail-line);border-left:1px solid var(--detail-line);box-shadow:0 0 40px rgba(17,48,91,.08)}}
@media(max-width:370px){.detail-header{padding:0 6px}.detail-resume{padding:0 6px}.detail-header-tools label{padding:0 5px}.detail-header-tools select{max-width:45px}.detail-main{padding-right:8px;padding-left:8px}.detail-plan-head{grid-template-columns:38px 1fr auto;gap:7px}.detail-plan-icon{width:38px;height:38px}.detail-plan-name h2{font-size:18px}.detail-price{font-size:17px}.detail-actions{grid-template-columns:minmax(0,1fr) 102px;padding-right:8px;padding-left:8px}}

/* USIMHI Pilot — 44px mobile touch targets verified at a 390px viewport. */
@media(max-width:600px){
  .detail-header{height:auto;min-height:56px}
  .detail-back{width:44px;min-width:44px;min-height:44px}
  .detail-brand{display:flex;min-width:0;min-height:44px;align-items:center}
  .detail-header-tools label,.detail-header-tools select,.detail-resume,.detail-accordion summary{min-height:44px}
}