*{box-sizing:border-box}html{-webkit-text-size-adjust:100%}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Helvetica,Arial,sans-serif;color:#334155;background:#fff;line-height:1.6;font-size:16px;-webkit-font-smoothing:antialiased}h1,h2,h3,h4{color:#0f172a;line-height:1.2;margin:0 0 .5em;font-weight:700}h1{font-size:44px;letter-spacing:-.02em}h2{font-size:30px;letter-spacing:-.01em}h3{font-size:19px}p{margin:0 0 1em}a[href]{color:#0f766e;text-decoration:none}a[href]:hover{text-decoration:underline}code{font-family:ui-monospace,Menlo,monospace;font-size:.9em;background:#f1f5f9;padding:1px 5px;border-radius:4px;color:#0f172a}.container{max-width:1080px;margin:0 auto;padding:0 24px}.muted{color:#64748b}.center{text-align:center}
.btn{display:inline-block;font-weight:600;font-size:15px;padding:11px 20px;border-radius:8px;border:1px solid transparent;cursor:pointer;min-height:44px;line-height:1.4;transition:background .15s,border-color .15s}.btn-primary{background:#0d9488;color:#fff}.btn-primary:hover{background:#0f766e;text-decoration:none;color:#fff}.btn-ghost{background:#fff;color:#0f172a;border-color:#cbd5e1}.btn-ghost:hover{border-color:#94a3b8;text-decoration:none}.btn-block{display:block;width:100%;text-align:center}
.site-header{border-bottom:1px solid #e2e8f0;background:rgba(255,255,255,.9);backdrop-filter:blur(6px);position:sticky;top:0;z-index:20}.site-header .container{display:flex;align-items:center;justify-content:space-between;height:64px;gap:16px}.brand{font-weight:800;font-size:20px;color:#0f172a;letter-spacing:-.02em}.brand:hover{text-decoration:none}.brand span{color:#0d9488}.nav-links{display:flex;align-items:center;gap:22px}.nav-links a{color:#475569;font-size:15px;font-weight:500}.nav-links a:hover{color:#0f172a;text-decoration:none}
.hero{background:linear-gradient(180deg,#f0fdfa 0%,#fff 100%);border-bottom:1px solid #e2e8f0;padding:66px 0 56px;text-align:center}.hero h1{max-width:760px;margin:0 auto .3em}.hero-sub{font-size:19px;color:#475569;max-width:620px;margin:0 auto}.checker-wrap{max-width:600px;margin:32px auto 0}.checker-form{display:flex;gap:8px;background:#fff;border:1px solid #cbd5e1;border-radius:12px;padding:8px;box-shadow:0 6px 24px rgba(15,23,42,.08)}.checker-form input{flex:1;border:0;font-size:16px;padding:12px 14px;border-radius:8px;min-width:0;color:#0f172a}.checker-form input:focus{outline:2px solid #5eead4;outline-offset:0}.checker-form .btn{white-space:nowrap}.checker-note{font-size:13px;color:#64748b;margin:10px 2px 0}
.fv-verdict{margin-top:16px;text-align:left;background:#fff;border:1px solid #e2e8f0;border-left-width:4px;border-radius:10px;padding:16px 18px;box-shadow:0 2px 10px rgba(15,23,42,.05)}.fv-verdict .v-tag{display:inline-block;font-size:12px;font-weight:700;text-transform:uppercase;letter-spacing:.04em;padding:3px 9px;border-radius:999px;margin-bottom:8px}.fv-verdict .v-line{font-size:17px;color:#0f172a;margin:0 0 6px}.fv-verdict .v-sub{font-size:14px;color:#64748b;margin:0}.v-valid{border-left-color:#16a34a}.v-valid .v-tag{background:#dcfce7;color:#166534}.v-caution{border-left-color:#d97706}.v-caution .v-tag{background:#fef3c7;color:#92400e}.v-invalid{border-left-color:#dc2626}.v-invalid .v-tag{background:#fee2e2;color:#991b1b}.v-suggest{font-size:19px}.v-suggest strong{color:#0d9488}.v-upgrade{margin-top:10px;padding-top:10px;border-top:1px solid #f1f5f9}
.section{padding:64px 0}.section.alt{background:#f8fafc;border-top:1px solid #e2e8f0;border-bottom:1px solid #e2e8f0}.section-head{max-width:680px;margin:0 auto 40px;text-align:center}.section-head p{font-size:18px;color:#64748b;margin:0}.eyebrow{display:block;font-size:13px;font-weight:700;text-transform:uppercase;letter-spacing:.06em;color:#0d9488;margin-bottom:10px}
.cols3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}.col-card{background:#fff;border:1px solid #e2e8f0;border-radius:12px;padding:24px}.col-card h3{margin-bottom:8px}.col-card p{margin:0;color:#475569;font-size:15px}.col-icon{width:38px;height:38px;border-radius:9px;background:#f0fdfa;display:flex;align-items:center;justify-content:center;color:#0d9488;font-weight:800;margin-bottom:14px;font-size:18px}
.diff-lead{font-size:20px;color:#0f172a;max-width:720px;margin:0 auto 10px;text-align:center;font-weight:500;line-height:1.5}.diff-body{max-width:640px;margin:0 auto;text-align:center;color:#475569}
.price-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;align-items:stretch}.price-card{background:#fff;border:1px solid #e2e8f0;border-radius:14px;padding:26px;display:flex;flex-direction:column}.price-card.featured{border-color:#0d9488;box-shadow:0 10px 34px rgba(13,148,136,.13);position:relative}.plan-name{font-size:14px;font-weight:700;text-transform:uppercase;letter-spacing:.05em;color:#0d9488}.price-amount{font-size:38px;font-weight:800;color:#0f172a;margin:8px 0 2px;letter-spacing:-.02em}.price-amount small{font-size:15px;font-weight:500;color:#64748b}.price-meta{color:#64748b;font-size:14px;margin:0 0 16px}.price-list{list-style:none;padding:0;margin:0 0 20px;flex:1}.price-list li{padding:8px 0 8px 24px;position:relative;font-size:14px;color:#475569;border-top:1px solid #f1f5f9}.price-list li:before{content:'';position:absolute;left:2px;top:13px;width:9px;height:5px;border-left:2px solid #0d9488;border-bottom:2px solid #0d9488;transform:rotate(-45deg)}.price-tag-pop{position:absolute;top:-11px;right:20px;background:#0d9488;color:#fff;font-size:11px;font-weight:700;text-transform:uppercase;letter-spacing:.04em;padding:4px 10px;border-radius:999px}.price-fine{text-align:center;color:#64748b;font-size:14px;margin:22px auto 0;max-width:640px}
.cmp{width:100%;border-collapse:collapse;background:#fff;border:1px solid #e2e8f0;border-radius:12px;overflow:hidden}.cmp th,.cmp td{padding:14px 16px;text-align:left;font-size:14px;border-top:1px solid #eef2f7}.cmp thead th{background:#f8fafc;color:#0f172a;font-weight:700;border-top:0}.cmp td.num{font-variant-numeric:tabular-nums}
.trust-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px 32px;max-width:860px;margin:0 auto}.trust-item{display:flex;gap:12px}.trust-item .dot{flex:none;width:10px;height:10px;border-radius:50%;background:#0d9488;margin-top:7px}.trust-item h3{font-size:16px;margin:0 0 4px}.trust-item p{margin:0;font-size:14px;color:#64748b}.logo-placeholder{margin:30px auto 0;max-width:720px;border:1px dashed #cbd5e1;border-radius:12px;padding:26px;text-align:center;color:#94a3b8;font-size:14px;background:#fff}
.faq{max-width:760px;margin:0 auto}.faq details{border-bottom:1px solid #e2e8f0}.faq summary{cursor:pointer;font-weight:600;color:#0f172a;padding:18px 0;font-size:16px;list-style:none;display:flex;justify-content:space-between;align-items:center;gap:16px}.faq summary::-webkit-details-marker{display:none}.faq summary:after{content:'+';color:#0d9488;font-size:22px;font-weight:400;line-height:1}.faq details[open] summary:after{content:'\2013'}.faq details p{margin:0 0 18px;color:#475569;font-size:15px}
.cta-band{background:#0f172a;color:#fff;border-radius:16px;padding:46px;text-align:center}.cta-band h2{color:#fff;margin-bottom:.3em}.cta-band p{color:#cbd5e1;max-width:520px;margin:0 auto 22px}
.site-footer{background:#0f172a;color:#94a3b8;padding:48px 0 28px}.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:28px;margin-bottom:32px}.site-footer .brand{color:#fff}.site-footer .brand span{color:#2dd4bf}.footer-col h4{color:#e2e8f0;font-size:13px;text-transform:uppercase;letter-spacing:.05em;margin:0 0 12px}.footer-col a{display:block;color:#94a3b8;font-size:14px;padding:5px 0}.footer-col a:hover{color:#fff;text-decoration:none}.footer-tag{font-size:14px;max-width:280px;margin:12px 0 0;line-height:1.5}.footer-bottom{border-top:1px solid #1e293b;padding-top:20px;font-size:13px;color:#64748b;display:flex;justify-content:space-between;flex-wrap:wrap;gap:8px}
.form-wrap{max-width:440px;margin:0 auto;padding:48px 0 64px}.form-card{background:#fff;border:1px solid #e2e8f0;border-radius:12px;padding:28px;box-shadow:0 4px 20px rgba(15,23,42,.05)}.form-card label{display:block;margin:0 0 14px;font-size:14px;font-weight:500;color:#334155}.form-card input{display:block;width:100%;margin-top:6px;padding:11px 12px;border:1px solid #cbd5e1;border-radius:8px;font-size:15px}.form-card input:focus{outline:0;border-color:#0d9488;box-shadow:0 0 0 3px #ccfbf1}.notice{padding:12px 14px;border-radius:8px;font-size:14px;margin-bottom:16px}.notice.err{background:#fee2e2;color:#991b1b}.notice.ok{background:#dcfce7;color:#166534}.form-alt{text-align:center;color:#64748b;font-size:14px;margin-top:18px}
.wrap{max-width:1080px;margin:0 auto;padding:0 24px}header.nav{background:#0f172a;color:#fff}header.nav .wrap{display:flex;align-items:center;justify-content:space-between;height:60px;flex-wrap:wrap}header.nav .brand{color:#fff}header.nav .brand span{color:#2dd4bf}nav.links a{color:#cbd5e1;margin-left:18px;font-size:15px}nav.links a:hover{color:#fff;text-decoration:none}main.app{padding:28px 0 60px;background:#f8fafc;min-height:72vh}.sub{color:#64748b;margin:0 0 24px}.card{background:#fff;border:1px solid #e2e8f0;border-radius:12px;padding:20px 24px;margin:0 0 20px}table.data{width:100%;border-collapse:collapse;background:#fff;border:1px solid #e2e8f0;border-radius:12px;overflow:hidden}table.data th{background:#f1f5f9;text-align:left;padding:12px 14px;font-size:13px;text-transform:uppercase;letter-spacing:.03em;color:#475569}table.data td{padding:12px 14px;border-top:1px solid #eef2f7;font-size:15px}.mono{font-family:ui-monospace,Menlo,monospace;font-size:12px;word-break:break-all}.badge{display:inline-block;padding:3px 10px;border-radius:999px;font-size:12px;font-weight:600;background:#e2e8f0;color:#334155}.badge.pending{background:#fef3c7;color:#92400e}.badge.b-valid{background:#dcfce7;color:#166534}.badge.b-invalid{background:#fee2e2;color:#991b1b}.badge.b-do-not-mail{background:#fef3c7;color:#92400e}.badge.b-catch-all{background:#e0e7ff;color:#3730a3}.badge.b-unknown{background:#f1f5f9;color:#475569}.grade{display:inline-block;width:26px;height:26px;line-height:26px;text-align:center;border-radius:6px;font-weight:700;color:#fff}.grade-A{background:#16a34a}.grade-B{background:#65a30d}.grade-C{background:#ca8a04}.grade-D{background:#ea580c}.grade-F{background:#dc2626}.tiles{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-bottom:16px}.tile{background:#fff;border:1px solid #e2e8f0;border-radius:12px;padding:18px;text-align:center}.tnum{display:block;font-size:24px;font-weight:700;color:#0f766e}.tlabel{display:block;font-size:12px;color:#64748b;margin-top:4px}.kv{display:grid;grid-template-columns:180px 1fr;gap:8px 16px;margin:0}.kv dt{color:#64748b;font-size:14px}.kv dd{margin:0;font-size:15px}.evidence{background:#0f172a;color:#e2e8f0;padding:14px;border-radius:8px;font-size:12px;overflow:auto;max-height:340px;white-space:pre-wrap;word-break:break-word}form.card label{display:block;margin:12px 0;font-size:14px;color:#475569}form.card input,form.card select{width:100%;max-width:360px;padding:10px 12px;border:1px solid #cbd5e1;border-radius:8px;font-size:15px;margin-top:4px}.saved{color:#166534;background:#dcfce7;padding:10px 14px;border-radius:8px}.empty{color:#64748b;padding:24px;text-align:center;background:#fff;border:1px dashed #cbd5e1;border-radius:12px}.tablewrap{overflow-x:auto}
@media(max-width:820px){h1{font-size:34px}h2{font-size:26px}.cols3,.price-grid{grid-template-columns:1fr}.trust-grid,.footer-grid{grid-template-columns:1fr 1fr}.nav-links{gap:14px}.section{padding:48px 0}.tiles{grid-template-columns:repeat(2,1fr)}}
@media(max-width:520px){.nav-sec{display:none}.footer-grid{grid-template-columns:1fr}.tiles{grid-template-columns:1fr}.checker-form{flex-direction:column}.checker-form .btn{width:100%}.cta-band{padding:32px 20px}.container{padding:0 18px}}