/* KeysMedic design system — parent site (from the KeysMedic Platform Design
   folder). Indigo = AMC (medicine), Teal = ADC (dentistry). */
:root{
  --navy:#141A4E; --indigo:#2E3192; --indigo-deep:#252878; --indigo-soft:#EEF0FB;
  --teal:#0D9488; --teal-deep:#0B7C72; --teal-soft:#E6F7F4;
  --page:#F7F8FC; --hair:#E7EAF3; --text:#1E293B; --muted:#5A6478; --faint:#94A3B8;
  --radius:16px;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0;background:var(--page)}
body{font-family:'Manrope',system-ui,-apple-system,Segoe UI,sans-serif;color:var(--text);-webkit-font-smoothing:antialiased}
a{text-decoration:none;color:inherit}
img{display:block;max-width:100%}
.wrap{max-width:1160px;margin:0 auto;padding:0 32px}
@media(max-width:860px){.wrap{padding:0 20px}}

/* Motion */
@keyframes fadeUp{from{opacity:0;transform:translateY(16px)}to{opacity:1;transform:none}}
.fade-up{animation:fadeUp .55s ease-out both}
.d1{animation-delay:.08s}.d2{animation-delay:.16s}.d3{animation-delay:.24s}.d4{animation-delay:.32s}
.reveal{opacity:0;transform:translateY(18px);transition:opacity .6s ease-out,transform .6s ease-out}
.reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion: reduce){*{animation:none!important;transition:none!important}.reveal{opacity:1;transform:none}}

/* Buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-weight:800;border-radius:12px;padding:13px 26px;font-size:15px;border:0;cursor:pointer;transition:transform .15s ease-out,box-shadow .15s ease-out,background .15s;line-height:1}
.btn:hover{transform:translateY(-2px)}
.btn:active{transform:translateY(0)}
.btn:disabled{opacity:.6;cursor:not-allowed;transform:none}
.btn-indigo{background:var(--indigo);color:#fff;box-shadow:0 6px 16px rgba(46,49,146,.25)}
.btn-indigo:hover{background:var(--indigo-deep)}
.btn-teal{background:var(--teal);color:#fff;box-shadow:0 6px 16px rgba(13,148,136,.25)}
.btn-teal:hover{background:var(--teal-deep)}
.btn-white{background:#fff;color:var(--indigo);box-shadow:0 4px 14px rgba(0,0,0,.15)}
.btn-ghost{background:#fff;color:#334155;border:1px solid var(--hair)}
.btn-ghost:hover{border-color:#CBD5E1}
.btn-sm{font-size:14px;padding:10px 18px;border-radius:10px}

/* Nav */
nav.top{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.9);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-bottom:1px solid var(--hair)}
.navin{height:68px;display:flex;align-items:center;justify-content:space-between;gap:16px}
.navlinks{display:flex;gap:28px;align-items:center}
.navlinks a{font-size:14px;font-weight:600;color:#475569;position:relative}
.navlinks a:hover,.navlinks a.active{color:var(--indigo)}
.navlinks a.active::after{content:"";position:absolute;left:0;right:0;bottom:-24px;height:2px;background:var(--indigo);border-radius:2px}
.navcta{display:flex;gap:10px;align-items:center}
.navcta .login{font-size:14px;font-weight:600;color:#334155;padding:9px 16px;border-radius:10px}
.navcta .login:hover{background:#F1F5F9}
.burger{display:none;width:40px;height:40px;border:0;background:transparent;border-radius:10px;align-items:center;justify-content:center;cursor:pointer;color:#334155}
.burger:hover{background:#F1F5F9}
.mobile-menu{display:none;border-top:1px solid var(--hair);background:#fff}
.mobile-menu a{display:block;padding:14px 20px;font-weight:700;color:#334155;border-bottom:1px solid var(--hair)}
.mobile-menu a:hover{background:#F8FAFC}
.mobile-menu.open{display:block}
@media(max-width:860px){.navlinks,.navcta .login,.navcta .getstarted{display:none}.burger{display:inline-flex}}

/* Cards */
.card{background:#fff;border:1px solid var(--hair);border-radius:var(--radius)}
.card.lift{transition:transform .2s ease-out,box-shadow .2s ease-out}
.card.lift:hover{transform:translateY(-4px);box-shadow:0 16px 36px rgba(20,26,78,.12)}
.eyebrow{font-size:12px;font-weight:800;letter-spacing:.08em;text-transform:uppercase}
.eyebrow.indigo{color:var(--indigo)}.eyebrow.teal{color:var(--teal-deep)}
.pill{display:inline-block;font-size:12px;font-weight:800;letter-spacing:.08em;border-radius:6px;padding:5px 12px}
.pill.indigo{color:var(--indigo);background:var(--indigo-soft)}.pill.teal{color:var(--teal-deep);background:var(--teal-soft)}
h1.hero{font-size:52px;line-height:1.08;font-weight:800;letter-spacing:-.02em;color:var(--navy);margin:24px auto 16px}
.lede{font-size:18px;line-height:1.6;color:var(--muted);margin:0 auto 40px}
h2.sec{font-size:34px;font-weight:800;letter-spacing:-.02em;color:var(--navy);margin:0}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.grid4{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
@media(max-width:860px){.grid2,.grid3,.grid4{grid-template-columns:1fr}h1.hero{font-size:36px}h2.sec{font-size:28px}}
@media(min-width:861px) and (max-width:1100px){.grid4{grid-template-columns:repeat(2,1fr)}}
.ticks{display:flex;gap:16px;flex-wrap:wrap;font-size:12.5px;font-weight:700;color:#64748B}
.trust{display:flex;justify-content:center;gap:40px;flex-wrap:wrap;margin-top:56px;font-size:13.5px;font-weight:700;color:#64748B}
.section{padding:80px 0}
.section.white{background:#fff;border-top:1px solid var(--hair);border-bottom:1px solid var(--hair)}
.num{width:38px;height:38px;border-radius:10px;background:var(--indigo-soft);color:var(--indigo);display:flex;align-items:center;justify-content:center;font-weight:800;font-size:16px;margin-bottom:16px}
.num.teal{background:var(--teal-soft);color:var(--teal-deep)}
.band{background:linear-gradient(135deg,var(--navy) 0%,var(--indigo) 100%);border-radius:20px;padding:52px 56px;display:flex;justify-content:space-between;align-items:center;gap:32px;flex-wrap:wrap}
.band.teal{background:linear-gradient(135deg,#0B3B3A 0%,var(--teal) 100%)}
.band h2{font-size:28px;font-weight:800;letter-spacing:-.02em;color:#fff;margin:0 0 8px}
.band p{font-size:15px;color:#C6CBF2;margin:0}
.band.teal p{color:#BFEDE7}
@media(max-width:860px){.band{padding:36px 28px}}

/* Footer */
footer{border-top:1px solid var(--hair);background:#fff}
.footgrid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:32px;padding:48px 0 28px}
.footgrid h4{font-size:12px;letter-spacing:.08em;text-transform:uppercase;color:var(--faint);margin:0 0 12px}
.footgrid a{display:block;font-size:13.5px;font-weight:600;color:#475569;margin-bottom:8px}
.footgrid a:hover{color:var(--indigo)}
.footblurb{font-size:13.5px;line-height:1.6;color:var(--muted);margin:14px 0 16px;max-width:360px}
.footcontact{color:var(--indigo)!important;font-weight:700!important}
.disclaimer{font-size:12px;line-height:1.65;color:var(--faint);border-top:1px solid var(--hair);padding-top:20px;margin:0}
.footbottom{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:12px;padding:18px 0 24px}
.footlinks{display:flex;gap:20px;font-size:13px;font-weight:600}
.footlinks a{color:#64748B}.footlinks a:hover{color:var(--indigo)}
.copy{font-size:12.5px;color:var(--faint)}
@media(max-width:860px){.footgrid{grid-template-columns:1fr 1fr;gap:24px}}

/* Legal / prose pages */
.legal{max-width:760px;margin:0 auto;padding:64px 0 96px}
.legal h1{font-size:36px;font-weight:800;letter-spacing:-.02em;color:var(--navy);margin:0 0 6px}
.legal .updated{font-size:13px;color:var(--faint);margin:0 0 28px}
.legal h2{font-size:18px;font-weight:800;color:var(--navy);margin:32px 0 10px}
.legal p,.legal li{font-size:15px;line-height:1.7;color:#334155}
.legal p{margin:0 0 12px}
.legal ul{padding-left:20px;margin:0 0 12px}
.legal li{margin-bottom:6px}
.legal a{color:var(--indigo);font-weight:700}
.legal .intro{font-size:16px;color:var(--muted)}
.contactgrid{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:28px}
@media(max-width:860px){.contactgrid{grid-template-columns:1fr}.legal h1{font-size:30px}}
.contactgrid .card{padding:24px}
.contactgrid h3{font-size:12px;letter-spacing:.08em;text-transform:uppercase;color:var(--faint);margin:0 0 8px}
.contactgrid .big{font-size:18px;font-weight:800;color:var(--indigo)}

/* Exam preview mock (product pages) */
.exam{background:#fff;border:1px solid var(--hair);border-radius:16px;overflow:hidden;box-shadow:0 20px 50px rgba(20,26,78,.12)}
.exam .bar{display:flex;justify-content:space-between;align-items:center;padding:12px 18px;color:#fff;font-size:12.5px;font-weight:700}
.exam .bar.indigo{background:var(--navy)}.exam .bar.teal{background:#0B3B3A}
.exam .body{padding:22px}
.exam .q{font-size:14px;line-height:1.6;color:#334155;margin:0 0 14px}
.exam .ask{font-size:14.5px;font-weight:800;color:var(--navy);margin:0 0 12px}
.exam .opt{display:flex;gap:12px;align-items:flex-start;padding:10px 12px;border:1px solid var(--hair);border-radius:10px;margin-bottom:8px;font-size:13.5px;color:#334155;transition:background .15s,border-color .15s;cursor:pointer}
.exam .opt:hover{background:#F8FAFC;border-color:#CBD5E1}
.exam .opt.sel{background:var(--indigo-soft);border-color:#C7CAF0}
.exam .opt.sel.teal{background:var(--teal-soft);border-color:#A7E3DA}
.exam .opt b{color:#64748B;min-width:14px}

/* Blueprint bars */
.bp{display:grid;grid-template-columns:1fr 1fr;gap:10px 28px}
@media(max-width:860px){.bp{grid-template-columns:1fr}}
.bp .row{display:grid;grid-template-columns:1fr 46px;align-items:center;gap:12px;font-size:13.5px;font-weight:700;color:#334155}
.bp .track{height:8px;background:#EEF1F7;border-radius:6px;overflow:hidden;grid-column:1/2}
.bp .fill{height:100%;border-radius:6px;background:var(--indigo);width:0;transition:width 1s ease-out}
.bp .fill.teal{background:var(--teal)}
.bp .pct{font-size:12.5px;color:#64748B;text-align:right}
.bp .lbl{display:flex;justify-content:space-between}

/* Pricing */
.toggle{display:inline-flex;background:#fff;border:1px solid var(--hair);border-radius:12px;padding:4px;gap:4px}
.toggle button{border:0;background:transparent;font-weight:800;font-size:14px;padding:10px 20px;border-radius:9px;cursor:pointer;color:#64748B;font-family:inherit}
.toggle button.on.indigo{background:var(--indigo);color:#fff}
.toggle button.on.teal{background:var(--teal);color:#fff}
.plan{padding:28px;position:relative;display:flex;flex-direction:column}
.plan .badge{position:absolute;top:-12px;left:24px;font-size:11px;font-weight:800;letter-spacing:.06em;color:#fff;border-radius:6px;padding:5px 10px;background:var(--indigo)}
.plan .badge.teal{background:var(--teal)}
.plan.hot{border-color:var(--indigo);box-shadow:0 12px 32px rgba(46,49,146,.12)}
.plan.hot.teal{border-color:var(--teal);box-shadow:0 12px 32px rgba(13,148,136,.14)}
.plan .name{font-size:18px;font-weight:800;color:var(--navy)}
.plan .tag{font-size:13px;color:var(--muted);margin:4px 0 16px;min-height:38px}
.plan .price{font-size:40px;font-weight:800;color:var(--navy);letter-spacing:-.02em;line-height:1}
.plan .price small{font-size:14px;font-weight:700;color:var(--muted);letter-spacing:0}
.plan .per{font-size:12.5px;color:var(--faint);margin:6px 0 18px}
.plan ul{list-style:none;padding:0;margin:0 0 22px;flex:1}
.plan li{font-size:13.5px;color:#334155;padding:6px 0;border-top:1px solid #F1F5F9;display:flex;gap:8px}
.plan li::before{content:"✓";color:var(--teal);font-weight:800}

/* FAQ */
.faq{border-top:1px solid var(--hair)}
.faq details{border-bottom:1px solid var(--hair)}
.faq summary{cursor:pointer;list-style:none;padding:18px 0;font-weight:800;color:var(--navy);display:flex;justify-content:space-between;align-items:center;font-size:15.5px}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font-size:20px;color:var(--faint);transition:transform .2s}
.faq details[open] summary::after{transform:rotate(45deg)}
.faq p{margin:0 0 18px;color:var(--muted);line-height:1.6;font-size:14.5px}

/* Auth (login / register) */
.auth{max-width:440px;margin:0 auto;padding:72px 0 96px}
.auth .card{padding:32px}
.auth h1{font-size:28px;font-weight:800;letter-spacing:-.02em;color:var(--navy);margin:0 0 6px}
.auth .sub{font-size:14px;color:var(--muted);margin:0 0 24px}
.field{margin-bottom:14px}
.field label{display:block;font-size:12.5px;font-weight:800;color:#475569;margin-bottom:6px}
.field input{width:100%;font:inherit;font-size:15px;padding:12px 14px;border:1px solid #CBD5E1;border-radius:10px;outline:0;transition:border-color .15s,box-shadow .15s}
.field input:focus{border-color:var(--indigo);box-shadow:0 0 0 3px rgba(46,49,146,.12)}
.msg{font-size:13.5px;border-radius:10px;padding:10px 12px;margin:0 0 14px;line-height:1.5}
.msg.err{background:#FEF2F2;border:1px solid #FECACA;color:#B91C1C}
.msg.info{background:var(--indigo-soft);border:1px solid #C7CAF0;color:var(--indigo)}
.msg.ok{background:#ECFDF5;border:1px solid #A7F3D0;color:#047857}
.chooser{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin:8px 0 4px}
.chooser button{font:inherit;font-weight:800;border:1px solid var(--hair);background:#fff;border-radius:12px;padding:16px 12px;cursor:pointer;text-align:left;transition:transform .15s,box-shadow .15s}
.chooser button:hover{transform:translateY(-2px);box-shadow:0 10px 24px rgba(20,26,78,.1)}
.chooser .k{font-size:11px;letter-spacing:.08em;font-weight:800}
.chooser .n{font-size:16px;color:var(--navy);margin-top:4px}
.hint{font-size:13px;color:var(--muted);text-align:center;margin-top:18px}
.hint a{color:var(--indigo);font-weight:700}
.spinner{display:inline-block;width:14px;height:14px;border:2px solid rgba(255,255,255,.4);border-top-color:#fff;border-radius:50%;animation:spin .7s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}

/* ── Guides / articles ─────────────────────────────────────────────── */
.article{max-width:780px;margin:0 auto;padding:56px 0 96px}
.article .crumbs{font-size:13px;color:var(--faint);margin-bottom:14px}
.article .crumbs a{color:var(--muted);font-weight:600;text-decoration:none}
.article h1{font-size:38px;line-height:1.15;font-weight:800;letter-spacing:-.02em;color:var(--navy);margin:0 0 12px}
.article .meta{font-size:13px;color:var(--faint);margin:0 0 26px}
.article .lede-p{font-size:17px;line-height:1.65;color:var(--muted);margin:0 0 22px}
.article h2{font-size:22px;font-weight:800;color:var(--navy);margin:36px 0 10px;letter-spacing:-.01em}
.article h3{font-size:17px;font-weight:800;color:var(--navy);margin:24px 0 8px}
.article p,.article li{font-size:15.5px;line-height:1.75;color:#334155}
.article p{margin:0 0 14px}
.article ul,.article ol{padding-left:22px;margin:0 0 14px}
.article li{margin-bottom:6px}
.article a{color:var(--indigo);font-weight:700}
.article .tbl{overflow-x:auto;margin:14px 0 22px}
.article table{width:100%;border-collapse:collapse;font-size:14.5px}
.article th,.article td{text-align:left;padding:10px 12px;border-bottom:1px solid var(--hair);vertical-align:top;line-height:1.5}
.article th{background:var(--indigo-soft);color:var(--navy);font-weight:800;font-size:12.5px;letter-spacing:.03em;text-transform:uppercase}
.article .callout{border-left:4px solid var(--indigo);background:var(--indigo-soft);padding:14px 18px;border-radius:0 12px 12px 0;margin:18px 0}
.article .callout.teal{border-color:var(--teal);background:var(--teal-soft)}
.article .callout p{margin:0}
.article .toc{background:#fff;border:1px solid var(--hair);border-radius:14px;padding:16px 20px;margin:0 0 26px}
.article .toc b{display:block;font-size:12px;letter-spacing:.08em;text-transform:uppercase;color:var(--faint);margin-bottom:8px}
.article .toc ol{margin:0;padding-left:20px}
.article .toc li{margin:4px 0;font-size:14.5px}
.article .toc a{font-weight:600}
.article .cta{background:linear-gradient(135deg,var(--indigo),var(--navy));color:#fff;border-radius:18px;padding:26px 28px;margin:34px 0}
.article .cta.teal{background:linear-gradient(135deg,var(--teal),var(--teal-deep))}
.article .cta h3{color:#fff;margin:0 0 6px;font-size:20px}
.article .cta p{color:rgba(255,255,255,.85);margin:0 0 14px}
.article .cta .btn{background:#fff;color:var(--navy)}
.article .faq{margin-top:10px}
.article .sources{border-top:1px solid var(--hair);padding-top:16px;margin-top:36px}
.article .sources h2{font-size:15px;margin:0 0 8px}
.article .sources li{font-size:13.5px;line-height:1.5;margin-bottom:4px;word-break:break-word;color:var(--muted)}
.article .disclaimer{font-size:12.5px;line-height:1.6;color:var(--faint);margin-top:18px}
.article .related{margin-top:36px}
.article .related h2{font-size:18px}
@media (max-width:640px){.article h1{font-size:30px}.article{padding:40px 0 72px}}
/* guides index */
.guides-head{text-align:center;padding:64px 0 28px}
.gcard{display:flex;flex-direction:column;text-decoration:none;color:inherit;padding:22px 22px 20px;height:100%}
.gcard .tag{font-size:11px;letter-spacing:.08em;text-transform:uppercase;font-weight:800;color:var(--indigo);margin-bottom:8px}
.gcard .tag.teal{color:var(--teal-deep)}
.gcard h3{font-size:17px;line-height:1.35;margin:0 0 8px;color:var(--navy)}
.gcard p{font-size:14px;color:var(--muted);margin:0;line-height:1.6;flex:1}
.gcard .more{display:inline-block;margin-top:12px;font-size:13.5px;font-weight:800;color:var(--indigo)}
.gcard .more.teal{color:var(--teal-deep)}