:root{--bg:#f4f7fb;--card:#fff;--text:#162033;--muted:#738095;--line:#e7edf5;--blue:#1473e6;--green:#149d69;--red:#d94343;--amber:#bd6b00}
*{box-sizing:border-box}
html{color-scheme:light}
body{margin:0;background:radial-gradient(circle at 50% -10%,#dbeaff,transparent 35%),var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Segoe UI",sans-serif;-webkit-font-smoothing:antialiased}
.threads-bg{position:fixed;inset:0;width:100%;height:100%;z-index:0;pointer-events:none;opacity:.62}
.app{position:relative;z-index:1;width:min(calc(100% - 32px),920px);margin:auto;padding:38px 0 calc(38px + env(safe-area-inset-bottom))}
.hero{text-align:center;margin-bottom:22px}
.logo{width:76px;height:76px;margin:auto;border-radius:50%;background:transparent;box-shadow:0 14px 30px rgba(20,115,230,.2);overflow:hidden}
.logo img{display:block;width:100%;height:100%;object-fit:contain}
.hero h1{margin:13px 0 5px;font-size:25px}
.hero p,.privacy-note,.foot,.empty-state p{margin:0;color:var(--muted);font-size:12px;line-height:1.65}
.card{background:rgba(255,255,255,.9);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border:1px solid #e2e8f0;border-radius:20px;box-shadow:0 12px 34px rgba(31,57,90,.07);padding:20px}
.search-card{display:grid;gap:15px}
.search-card h2,.section-head h2,.empty-state h2,.error-card h2{margin:0 0 4px;font-size:17px}
.search-card>div>p{margin:0;color:var(--muted);font-size:12px}
form{display:flex;gap:10px}
input,button{font:inherit}
input{min-width:0}
#domain-input,.filter-input{width:100%;min-height:48px;border:1px solid #d9e2ee;border-radius:14px;background:#fff;color:var(--text);padding:0 14px;font-size:16px;outline:none;transition:.18s}
#domain-input:focus,.filter-input:focus{border-color:var(--blue);box-shadow:0 0 0 4px rgba(20,115,230,.12)}
#submit-button{flex:0 0 auto;min-height:48px;border:0;border-radius:14px;padding:0 25px;background:#172033;color:#fff;font-weight:750;cursor:pointer}
#submit-button:disabled{opacity:.55;cursor:wait}
.feedback{min-height:18px;margin:9px 4px;color:var(--muted);font-size:12px}
.feedback.error{color:var(--red)}
.results{display:grid;gap:12px}
.hidden{display:none!important}
.empty-state{text-align:center;padding:48px 20px}
.empty-icon{display:grid;place-items:center;width:54px;height:54px;margin:0 auto 14px;border-radius:17px;background:#edf5ff;color:var(--blue);font-size:29px}
.error-card{border-color:rgba(217,67,67,.22)}
.error-card h2{color:var(--red)}
.error-card p{margin:8px 0 0;color:var(--muted)}
.section-head{display:flex;align-items:flex-start;justify-content:space-between;gap:14px;margin-bottom:16px}
.eyebrow{display:block;margin-bottom:4px;color:var(--blue);font-size:10px;font-weight:800;letter-spacing:.08em;text-transform:uppercase}
.badge{align-self:center;border-radius:99px;background:#edf5ff;color:var(--blue);padding:6px 10px;font-size:10px;font-weight:800}
.summary-card{border:0;background:linear-gradient(145deg,rgba(23,111,217,.97),rgba(13,95,197,.97));color:#fff;box-shadow:0 16px 36px rgba(13,95,197,.2)}
.summary-card .eyebrow{color:#cfe2ff}
.summary-card .badge{background:rgba(255,255,255,.16);color:#fff}
.summary-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;margin:0}
.summary-grid div{min-width:0;border-top:1px solid rgba(255,255,255,.2);padding-top:12px}
.summary-grid dt{color:#cfe2ff;font-size:11px}
.summary-grid dd{margin:6px 0 0;font-size:15px;font-weight:750;overflow-wrap:anywhere}
.filter-label{display:block;margin-bottom:6px;color:var(--muted);font-size:11px}
.filter-input{min-height:42px;font-size:14px}
.domain-list,.certificate-list{display:grid;margin-top:12px}
.domain-row{display:flex;align-items:center;gap:10px;min-width:0;border-top:1px solid var(--line);padding:12px 2px}
.domain-row:first-child{border-top:0}
.domain-name{flex:1;min-width:0;color:var(--text);font:600 13px/1.45 ui-monospace,SFMono-Regular,Menlo,monospace;overflow-wrap:anywhere}
.wildcard{border-radius:99px;background:#fff4e5;color:var(--amber);padding:4px 7px;font-size:9px;font-weight:800}
.copy-button,.text-button{border:0;background:transparent;color:var(--blue);padding:7px;font-size:11px;font-weight:750;cursor:pointer}
.certificate{border-top:1px solid var(--line);padding:14px 2px}
.certificate:first-child{border-top:0}
.certificate summary{display:grid;grid-template-columns:minmax(0,1.3fr) minmax(0,1fr) auto;gap:12px;align-items:center;cursor:pointer;list-style:none}
.certificate summary::-webkit-details-marker{display:none}
.cert-main,.cert-dates{min-width:0}
.cert-domain{display:block;font-size:13px;font-weight:750;overflow-wrap:anywhere}
.cert-issuer{display:block;margin-top:4px;color:var(--muted);font-size:11px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.cert-dates{color:var(--muted);font-size:11px}
.status-badge{border-radius:99px;padding:5px 8px;font-size:10px;font-weight:800}
.status-valid{background:#eaf8f2;color:var(--green)}
.status-expired{background:#f1f3f6;color:#6d7786}
.status-not_yet_valid{background:#fff4e5;color:var(--amber)}
.cert-detail{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;margin-top:13px;padding:13px;border-radius:14px;background:#f7f9fc}
.cert-detail div{min-width:0}
.cert-detail span{display:block;color:var(--muted);font-size:10px}
.cert-detail strong{display:block;margin-top:4px;font-size:11px;overflow-wrap:anywhere}
.cert-detail a{color:var(--blue)}
.empty-inline{color:var(--muted);font-size:12px;padding:12px 0}
.text-button{padding:0}
.skeleton-card{display:grid;gap:14px}
.skeleton-card span{height:15px;border-radius:8px;background:linear-gradient(90deg,#edf1f6,#f8fafc,#edf1f6);background-size:200% 100%;animation:shine 1.2s infinite}
.skeleton-card span:first-child{width:35%}
.skeleton-card span:last-child{width:70%}
.foot{text-align:center;margin:18px 10px 0}
.foot p{margin:5px 0}
.foot a{color:var(--blue)}
.toast{position:fixed;z-index:10;left:50%;bottom:22px;transform:translate(-50%,15px);background:rgba(23,32,51,.93);color:#fff;border-radius:99px;padding:9px 15px;font-size:12px;opacity:0;pointer-events:none;transition:.2s}
.toast.show{opacity:1;transform:translate(-50%,0)}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
@keyframes shine{to{background-position:-200% 0}
}
@media(max-width:600px){.app{width:100%;padding:30px 12px calc(30px + env(safe-area-inset-bottom))}
.logo{width:66px;height:66px}
.card{padding:16px}
.summary-grid{grid-template-columns:1fr 1fr}
.certificate summary{grid-template-columns:minmax(0,1fr) auto}
.cert-dates{grid-column:1/-1}
.cert-detail{grid-template-columns:1fr}
form{gap:8px}
#submit-button{padding:0 18px}
.domain-row{align-items:flex-start}
}
@media(max-width:340px){form{display:grid}
#submit-button{width:100%}
}
@media(prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}
.threads-bg{opacity:.38}
}