/* Advaya.ai — Dental systems. Brand matched to advayaai.in (Inter, navy + royal blue, grid canvas). */
:root{
  --ink:#0f172a;
  --ink-2:#334155;
  --muted:#64748b;
  --line:#e2e8f0;
  --soft:#f8fafc;
  --card:#ffffff;
  --blue:#4b62e6;
  --blue-2:#3a4fd0;
  --blue-soft:#eef1fe;
  --green:#16a34a;
  --green-soft:#e8f7ee;
  --amber:#b45309;
  --amber-soft:#fef3e2;
  --red:#dc2626;
  --radius:16px;
  --sans:"Inter",system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;
  --mono:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  --max:1180px;
}
*{box-sizing:border-box}
[hidden]{display:none!important}
html{scroll-behavior:smooth}
body{margin:0;background:#fff;color:var(--ink);font:17px/1.65 var(--sans);-webkit-font-smoothing:antialiased}
img,svg{max-width:100%;display:block}
a{color:var(--blue);text-underline-offset:3px}
a:hover{color:var(--blue-2)}
:focus-visible{outline:3px solid var(--blue);outline-offset:2px;border-radius:6px}
.skip{position:absolute;left:-999px;top:0;background:var(--ink);color:#fff;padding:.6rem 1rem;z-index:99}
.skip:focus{left:1rem}
.wrap{max-width:var(--max);margin:0 auto;padding:0 24px}
h1,h2,h3{font-weight:800;line-height:1.08;letter-spacing:-.03em;margin:0 0 .5em}
h1{font-size:clamp(2.4rem,5.6vw,4.4rem)}
h2{font-size:clamp(1.8rem,3.4vw,2.7rem)}
h3{font-size:1.25rem;letter-spacing:-.015em;line-height:1.25}
p{margin:0 0 1em}
.accent{color:var(--blue)}
.lede{font-size:1.2rem;color:var(--ink-2);max-width:44em}
.muted{color:var(--muted)}
.small{font-size:.88rem}
.center{text-align:center}
.center .lede{margin-left:auto;margin-right:auto}
.pill{display:inline-flex;align-items:center;gap:.55rem;border:1px solid var(--line);background:#fff;border-radius:999px;padding:.45rem 1rem;font:600 .8rem/1 var(--sans);letter-spacing:.08em;text-transform:uppercase;color:var(--ink-2);margin-bottom:1.4rem}
.pill::before{content:"";width:9px;height:9px;border-radius:50%;background:var(--green)}
.eyebrow{display:block;font:700 .78rem/1 var(--sans);letter-spacing:.12em;text-transform:uppercase;color:var(--blue);margin-bottom:1rem}

/* grid canvas like advayaai.in */
.grid-bg{background-color:#fff;background-image:linear-gradient(to right,rgba(15,23,42,.045) 1px,transparent 1px),linear-gradient(to bottom,rgba(15,23,42,.045) 1px,transparent 1px);background-size:56px 56px}

/* header */
.site-head{position:sticky;top:0;z-index:30;background:rgba(255,255,255,.94);backdrop-filter:saturate(1.6) blur(10px);border-bottom:1px solid var(--line)}
.site-head .wrap{display:flex;align-items:center;justify-content:space-between;height:76px;gap:1.2rem}
.brand{display:flex;align-items:center;gap:.7rem;text-decoration:none;color:var(--ink)}
.brand img{width:52px;height:auto}
.brand b{display:block;font:800 1.35rem/1 var(--sans);letter-spacing:-.02em}
.brand b span{color:var(--blue)}
.brand small{display:block;font:600 .7rem/1.2 var(--sans);letter-spacing:.12em;text-transform:uppercase;color:var(--muted);margin-top:4px}
.nav{display:flex;gap:1.6rem;align-items:center}
.nav a{color:var(--ink-2);text-decoration:none;font-size:.97rem;font-weight:500}
.nav a:hover,.nav a[aria-current=page]{color:var(--ink)}
.nav a[aria-current=page]{box-shadow:inset 0 -2px 0 var(--blue)}
.nav a.btn,.nav a.btn:hover{color:#fff}
@media (max-width:980px){.nav a:not(.btn){display:none}}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;background:var(--ink);color:#fff;text-decoration:none;border:0;border-radius:12px;padding:.95rem 1.5rem;font:700 1rem/1 var(--sans);cursor:pointer;transition:transform .15s,background .15s,box-shadow .15s}
.btn:hover{background:#1e293b;color:#fff;transform:translateY(-1px)}
.btn.blue{background:var(--blue);box-shadow:0 10px 24px -12px rgba(75,98,230,.8)}
.btn.blue:hover{background:var(--blue-2)}
.btn.ghost{background:#fff;color:var(--ink);box-shadow:inset 0 0 0 1.5px var(--line)}
.btn.ghost:hover{box-shadow:inset 0 0 0 1.5px var(--ink);color:var(--ink)}
.btn.sm{padding:.7rem 1.1rem;font-size:.92rem;border-radius:10px}

/* sections */
section{padding:92px 0}
.band{background:var(--soft);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.dark{background:var(--ink);color:#e2e8f0}
.dark h2,.dark h3{color:#fff}
.dark .muted{color:#94a3b8}
.dark .lede{color:#cbd5e1}
.grid{display:grid;gap:22px}
.g2{grid-template-columns:repeat(2,1fr)}
.g3{grid-template-columns:repeat(3,1fr)}
.g4{grid-template-columns:repeat(4,1fr)}
@media (max-width:960px){.g3,.g4{grid-template-columns:1fr 1fr}}
@media (max-width:660px){.g2,.g3,.g4{grid-template-columns:1fr}section{padding:64px 0}}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:28px}
.card h3{margin-bottom:.35em}
.card p:last-child{margin-bottom:0}
.dark .card{background:#16213a;border-color:#26324d;color:#e2e8f0}

/* hero */
.hero{padding:96px 0 84px}
.hero h1{max-width:14em;margin-left:auto;margin-right:auto}
.cta-row{display:flex;flex-wrap:wrap;gap:14px;margin:2rem 0 1.2rem}
.center .cta-row{justify-content:center}
.trust{display:flex;flex-wrap:wrap;gap:.5rem 1.4rem;font-size:.92rem;color:var(--muted);padding:0;margin:0;list-style:none}
.center .trust{justify-content:center}
.trust li::before{content:"✓ ";color:var(--green);font-weight:800}

/* offer cards */
.offer{display:flex;flex-direction:column;position:relative;transition:box-shadow .2s,transform .2s}
.offer:hover{box-shadow:0 24px 48px -28px rgba(15,23,42,.35);transform:translateY(-2px)}
.offer .ico{width:48px;height:48px;border-radius:12px;background:var(--blue-soft);display:grid;place-items:center;margin-bottom:18px}
.offer .ico svg{width:26px;height:26px;stroke:var(--blue)}
.offer ul{padding-left:1.1rem;margin:.6rem 0 1.4rem;color:var(--ink-2)}
.offer li{margin-bottom:.3rem}
.offer .from{font-weight:700;color:var(--ink);margin:auto 0 1rem}
.offer .from span{font-weight:500;color:var(--muted)}
.offer .btn{width:100%}
.tag{display:inline-block;font:700 .7rem/1 var(--sans);letter-spacing:.06em;text-transform:uppercase;padding:.4rem .6rem;border-radius:7px;background:var(--blue-soft);color:var(--blue-2)}
.tag.green{background:var(--green-soft);color:#166534}
.tag.amber{background:var(--amber-soft);color:var(--amber)}
.offer .tag{position:absolute;top:22px;right:22px}

/* flow */
.flow{display:grid;grid-template-columns:repeat(3,1fr);gap:0;counter-reset:f;margin-top:34px}
.flow > div{position:relative;padding:26px;border:1px solid var(--line);background:#fff}
.flow > div:first-child{border-radius:var(--radius) 0 0 var(--radius)}
.flow > div:last-child{border-radius:0 var(--radius) var(--radius) 0}
.flow > div + div{border-left:0}
.flow b{display:block;font-size:.78rem;letter-spacing:.1em;text-transform:uppercase;color:var(--blue);margin-bottom:.5rem}
@media (max-width:760px){.flow{grid-template-columns:1fr}.flow > div{border-radius:0!important;border-left:1px solid var(--line)!important}.flow > div + div{border-top:0}}

/* steps */
.steps{counter-reset:s;list-style:none;padding:0;margin:0;display:grid;gap:14px}
.steps li{counter-increment:s;display:grid;grid-template-columns:54px 1fr;gap:16px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:22px}
.steps li::before{content:counter(s,decimal-leading-zero);font:700 1.25rem/1 var(--mono);color:var(--blue);padding-top:4px}
.steps h3{margin-bottom:.25em;font-size:1.12rem}
.steps p{margin:0;color:var(--ink-2)}

/* tables */
.table-scroll{overflow-x:auto}
.compare{width:100%;border-collapse:separate;border-spacing:0;background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;font-size:.96rem}
.compare th,.compare td{padding:14px 16px;text-align:left;border-bottom:1px solid var(--line);vertical-align:top}
.compare tr:last-child td{border-bottom:0}
.compare thead th{background:var(--ink);color:#fff;font-weight:700}
.compare td:first-child{font-weight:600}

/* dashboard mock */
.dash{background:#fff;border:1px solid var(--line);border-radius:18px;box-shadow:0 40px 80px -40px rgba(15,23,42,.45);overflow:hidden}
.dash-top{display:flex;justify-content:space-between;align-items:center;padding:14px 20px;border-bottom:1px solid var(--line);background:var(--soft);font-size:.86rem;color:var(--muted)}
.dash-top b{color:var(--ink);font-size:.95rem}
.dots{display:flex;gap:6px}.dots i{width:10px;height:10px;border-radius:50%;background:#cbd5e1;display:block}
.kpis{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border-bottom:1px solid var(--line)}
.kpis div{padding:18px 20px;border-right:1px solid var(--line)}
.kpis div:last-child{border-right:0}
.kpis span{display:block;font-size:.78rem;color:var(--muted);text-transform:uppercase;letter-spacing:.06em;font-weight:600}
.kpis strong{display:block;font-size:1.7rem;letter-spacing:-.02em;margin-top:4px}
@media (max-width:700px){.kpis{grid-template-columns:1fr 1fr}.kpis div:nth-child(2){border-right:0}.kpis div:nth-child(-n+2){border-bottom:1px solid var(--line)}}
.dash table{width:100%;border-collapse:collapse;font-size:.88rem}
.dash th,.dash td{padding:11px 20px;text-align:left;border-bottom:1px solid var(--line)}
.dash th{font-size:.74rem;text-transform:uppercase;letter-spacing:.06em;color:var(--muted);font-weight:700}
.dash tr:last-child td{border-bottom:0}

/* chat mock */
.chat{background:#fff;border:1px solid var(--line);border-radius:18px;padding:20px;box-shadow:0 30px 60px -36px rgba(15,23,42,.4);display:flex;flex-direction:column;gap:10px;font-size:.93rem}
.chat .who{font-size:.74rem;color:var(--muted);text-transform:uppercase;letter-spacing:.06em;font-weight:700}
.msg{max-width:86%;padding:10px 14px;border-radius:14px;line-height:1.45}
.msg.p{background:var(--soft);border:1px solid var(--line);align-self:flex-start;border-bottom-left-radius:4px}
.msg.a{background:var(--blue);color:#fff;align-self:flex-end;border-bottom-right-radius:4px}
.msg.sys{align-self:center;background:var(--amber-soft);color:var(--amber);font-size:.8rem;font-weight:600;border-radius:999px;padding:6px 12px}

/* calculator */
.tabs{display:inline-flex;background:var(--soft);border:1px solid var(--line);border-radius:12px;padding:4px;gap:4px;flex-wrap:wrap}
.tabs button{border:0;background:transparent;padding:.6rem 1rem;border-radius:9px;font:600 .92rem/1 var(--sans);color:var(--ink-2);cursor:pointer}
.tabs button[aria-pressed=true],.tabs button[aria-selected=true]{background:var(--ink);color:#fff}
.calc{display:grid;grid-template-columns:1fr 1fr;gap:28px;margin-top:24px}
@media (max-width:840px){.calc{grid-template-columns:1fr}}
.field{margin-bottom:20px}
.field label{display:flex;justify-content:space-between;gap:1rem;font-weight:600;font-size:.95rem;margin-bottom:6px}
.field output{font-family:var(--mono);color:var(--blue);white-space:nowrap}
input[type=range]{width:100%;accent-color:var(--blue)}
.result{background:var(--ink);color:#fff;border-radius:var(--radius);padding:30px}
.result .big{font:800 2.8rem/1.05 var(--sans);letter-spacing:-.03em;margin:.3rem 0 1.1rem}
.result dl{display:grid;grid-template-columns:1fr auto;gap:9px 16px;margin:0;font-size:.95rem}
.result dt{color:#94a3b8}
.result dd{margin:0;font-family:var(--mono);text-align:right}
.result .verdict{margin:18px 0 0;color:#c7d2fe}

/* pricing */
.price{display:flex;flex-direction:column}
.price .amt{font:800 2.3rem/1 var(--sans);letter-spacing:-.03em;margin:.7rem 0 .25rem}
.price .amt span{font:500 .95rem var(--sans);color:var(--muted);letter-spacing:0}
.price .setup{font-size:.86rem;color:var(--muted);margin:0}
.price ul{padding-left:1.1rem;margin:1rem 0 1.4rem;color:var(--ink-2);font-size:.95rem}
.price li{margin-bottom:.3rem}
.price.featured{border:2px solid var(--blue);box-shadow:0 30px 60px -40px rgba(75,98,230,.7)}
.price .btn{margin-top:auto}
.bundle{display:flex;flex-wrap:wrap;gap:20px;align-items:center;justify-content:space-between;background:var(--ink);color:#fff;border-radius:var(--radius);padding:26px 30px;margin-top:22px}
.bundle h3{color:#fff;margin:0 0 .2em}
.bundle p{margin:0;color:#cbd5e1}
.bundle .amt{font:800 2rem/1 var(--sans);letter-spacing:-.02em}
.guarantee{display:flex;gap:18px;align-items:flex-start;background:var(--green-soft);border:1px solid #bfe7cd;border-radius:var(--radius);padding:22px;margin-top:22px}
.guarantee svg{flex:none}

/* faq */
details{background:#fff;border:1px solid var(--line);border-radius:14px;padding:0 22px;margin-bottom:10px}
summary{cursor:pointer;padding:19px 0;font-weight:700;list-style:none;display:flex;justify-content:space-between;gap:1rem}
summary::-webkit-details-marker{display:none}
summary::after{content:"+";font:500 1.4rem/1 var(--sans);color:var(--blue)}
details[open] summary::after{content:"–"}
details p{color:var(--ink-2)}

/* form */
form .row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
@media (max-width:660px){form .row{grid-template-columns:1fr}}
form label{display:block;font-weight:600;font-size:.9rem;margin:0 0 6px}
form input,form select,form textarea{width:100%;padding:.85rem .95rem;border:1px solid #cbd5e1;border-radius:10px;font:inherit;background:#fff;color:var(--ink);margin-bottom:14px}
form textarea{min-height:90px;resize:vertical}
fieldset{border:0;padding:0;margin:0 0 10px}
fieldset legend{font-weight:600;font-size:.9rem;margin-bottom:8px}
.checks{display:flex;flex-wrap:wrap;gap:10px}
.checks label{display:flex;align-items:center;gap:8px;border:1px solid #cbd5e1;border-radius:10px;padding:.6rem .9rem;font-weight:500;margin:0;cursor:pointer}
.checks input{width:auto;margin:0;accent-color:var(--blue)}

/* article */
.article{max-width:760px;margin:0 auto}
.article h1{font-size:clamp(2.1rem,4.6vw,3.2rem)}
.article h2{margin-top:2.2em;font-size:1.7rem}
.article h3{margin-top:1.6em}
.article ul,.article ol{padding-left:1.25rem}
.article li{margin-bottom:.4em}
.article blockquote{margin:1.5em 0;padding:1em 1.3em;border-left:4px solid var(--blue);background:var(--soft);border-radius:0 12px 12px 0}
.article table{width:100%;border-collapse:collapse;margin:1.2em 0;font-size:.95rem;background:#fff}
.article th,.article td{border:1px solid var(--line);padding:10px 12px;text-align:left;vertical-align:top}
.article th{background:var(--blue-soft)}
.crumbs{font-size:.86rem;color:var(--muted);margin-bottom:1.5rem}
.crumbs a{color:var(--muted)}
.note{background:var(--amber-soft);border:1px solid #f6d9a8;border-radius:12px;padding:14px 16px;font-size:.93rem;color:#7c4a03}
.toc{background:var(--soft);border:1px solid var(--line);border-radius:14px;padding:18px 22px;margin:1.5em 0}
.toc ol{margin:.4em 0 0}

/* footer */
.site-foot{background:var(--ink);color:#94a3b8;padding:60px 0 34px;font-size:.93rem}
.site-foot a{color:#e2e8f0;text-decoration:none}
.site-foot a:hover{text-decoration:underline}
.site-foot .grid{grid-template-columns:2fr 1fr 1fr 1fr}
@media (max-width:820px){.site-foot .grid{grid-template-columns:1fr 1fr}}
.site-foot h3{color:#fff;font-size:.95rem;letter-spacing:0;margin-bottom:.8rem}
.site-foot ul{list-style:none;padding:0;margin:0}
.site-foot li{margin-bottom:.45rem}
.foot-brand{display:flex;align-items:center;gap:.6rem;color:#fff;font-weight:800;font-size:1.2rem;margin-bottom:.6rem}
.foot-brand img{width:40px;background:#fff;border-radius:10px;padding:3px}
.legal{border-top:1px solid #1e293b;margin-top:36px;padding-top:20px;font-size:.82rem;color:#64748b}

@media (prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}

/* small screens */
.btn{white-space:nowrap}
@media (max-width:520px){
  .site-head .wrap{height:66px}
  .brand img{width:40px}
  .brand b{font-size:1.15rem}
  .btn.sm{padding:.6rem .85rem;font-size:.85rem}
  .dash th:nth-child(3),.dash td:nth-child(3){display:none}
  .dash-top .dots{display:none}
  .kpis span{font-size:.7rem}
}