/* ============================================================
   Nagpal Dental Associates — Bold Authority design system
   ============================================================ */

:root{
  --navy:#0F2438;
  --navy-deep:#081720;
  --navy-light:#1c3a54;
  --gold:#C9A24B;
  --gold-soft:rgba(201,162,75,0.16);
  --red:#B23A48;
  --red-deep:#9c2f3c;
  --paper:#F3EFE7;
  --paper-dim:rgba(243,239,231,0.72);
  --line: rgba(243,239,231,0.14);
}

*{box-sizing:border-box; margin:0; padding:0;}
html{scroll-behavior:smooth;}
body{
  background:var(--navy);
  color:var(--paper);
  font-family:'Work Sans', sans-serif;
  line-height:1.6;
  overflow-x:hidden;
}

/* ---------------- motion: scroll reveal ---------------- */
.reveal{opacity:0; transform:translateY(28px); transition:opacity .7s cubic-bezier(.2,.7,.2,1), transform .7s cubic-bezier(.2,.7,.2,1);}
.reveal.in-view{opacity:1; transform:none;}
.reveal-stagger > *{opacity:0; transform:translateY(20px); transition:opacity .6s ease, transform .6s ease;}
.reveal-stagger.in-view > *{opacity:1; transform:none;}
.reveal-stagger.in-view > *:nth-child(1){transition-delay:.04s;}
.reveal-stagger.in-view > *:nth-child(2){transition-delay:.12s;}
.reveal-stagger.in-view > *:nth-child(3){transition-delay:.2s;}
.reveal-stagger.in-view > *:nth-child(4){transition-delay:.28s;}
.reveal-stagger.in-view > *:nth-child(5){transition-delay:.36s;}
.reveal-stagger.in-view > *:nth-child(6){transition-delay:.44s;}

@media (prefers-reduced-motion: reduce){
  .reveal, .reveal-stagger > *{opacity:1 !important; transform:none !important; transition:none !important;}
  .mesh-bg, .ticker-track, [data-counter]{animation:none !important;}
  .tilt{transform:none !important;}
}
h1,h2,h3{ font-family:'Source Serif 4', serif; font-weight:600; color:var(--paper); }
.mono{ font-family:'IBM Plex Mono', monospace; text-transform:uppercase; letter-spacing:0.1em; font-size:0.72rem; }
a{color:inherit;}
img{max-width:100%; display:block;}
.wrap{max-width:1140px; margin:0 auto; padding:0 28px;}
.visually-hidden{ position:absolute; width:1px; height:1px; overflow:hidden; clip:rect(0 0 0 0); white-space:nowrap; }

/* focus visibility */
a:focus-visible, button:focus-visible, .faq-q:focus-visible{
  outline:2px solid var(--gold); outline-offset:3px;
}

/* ---------------- header ---------------- */
header{
  position:sticky; top:0; z-index:50;
  background:rgba(15,36,56,0.92);
  backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
  transition:padding .3s ease, background .3s ease;
}
header.scrolled{background:rgba(8,23,32,0.97); backdrop-filter:blur(14px);}
header.scrolled .header-inner{padding-top:11px; padding-bottom:11px;}
.header-inner{display:flex; justify-content:space-between; align-items:center; padding:18px 28px; transition:padding .3s ease;}
.logo{font-family:'Source Serif 4', serif; font-size:1.2rem; font-weight:600; color:var(--gold); text-decoration:none;}
nav.primary-nav{display:flex; gap:30px; align-items:center;}
.nav-links{display:flex; gap:26px;}
.nav-links a{text-decoration:none; font-size:0.92rem; opacity:0.82; color:var(--paper); padding-bottom:4px; border-bottom:2px solid transparent;}
.nav-links a:hover, .nav-links a.active{opacity:1; border-bottom-color:var(--gold);}
.cta-btn{background:var(--red); color:#fff; padding:11px 22px; border-radius:4px; text-decoration:none; font-weight:600; font-size:0.88rem; display:inline-block;}
.cta-btn:hover{background:var(--red-deep);}
.mobile-toggle{display:none; background:none; border:1px solid var(--gold); color:var(--gold); padding:8px 12px; border-radius:4px; font-size:0.85rem;}
@media (max-width:820px){
  .nav-links{display:none;}
  .mobile-toggle{display:inline-block;}
  .nav-links.open{
    display:flex; flex-direction:column; gap:0; position:absolute; top:100%; left:0; right:0;
    background:var(--navy-deep); border-bottom:1px solid var(--line); padding:8px 28px 18px;
  }
  .nav-links.open a{padding:12px 0; border-bottom:1px solid var(--line);}
}

/* ---------------- page hero (interior pages) ---------------- */
.page-hero{padding:60px 0 48px; border-bottom:1px solid var(--line);}
.page-hero .eyebrow{color:var(--gold); display:block; margin-bottom:14px;}
.page-hero h1{font-size:clamp(2rem, 4vw, 2.8rem); line-height:1.15; max-width:20ch;}
.page-hero p{max-width:56ch; opacity:0.78; margin-top:16px; font-size:1.02rem;}
.breadcrumbs{font-size:0.82rem; opacity:0.55; margin-bottom:16px;}
.breadcrumbs a{text-decoration:none;}
.breadcrumbs a:hover{color:var(--gold);}

/* ---------------- home hero ---------------- */
.hero{padding:96px 0 72px; position:relative; border-bottom:1px solid var(--line); overflow:hidden;}
.mesh-bg{
  position:absolute; inset:-20% -10% auto -10%; height:140%; z-index:0; pointer-events:none;
  background:
    radial-gradient(38% 42% at 18% 22%, rgba(201,162,75,0.20) 0%, transparent 70%),
    radial-gradient(32% 36% at 82% 18%, rgba(178,58,72,0.16) 0%, transparent 72%),
    radial-gradient(45% 50% at 60% 80%, rgba(28,58,84,0.55) 0%, transparent 70%);
  filter:blur(10px);
  animation:mesh-drift 22s ease-in-out infinite alternate;
}
@keyframes mesh-drift{
  0%{ transform:translate3d(0,0,0) scale(1); }
  100%{ transform:translate3d(2%, -3%, 0) scale(1.06); }
}
.hero-grid{position:relative; z-index:1; display:grid; grid-template-columns:1.05fr 0.95fr; gap:56px; align-items:center;}
.eyebrow{color:var(--gold); display:block; margin-bottom:18px;}
.hero h1{font-size:clamp(2.3rem, 4.6vw, 3.6rem); line-height:1.12; margin-bottom:20px;}
.hero h1 .accent{color:var(--gold);}
.hero h1 .kinetic-word{display:inline-block; opacity:0; transform:translateY(0.4em); animation:word-in .7s cubic-bezier(.2,.7,.2,1) forwards;}
@keyframes word-in{ to{ opacity:1; transform:translateY(0); } }
.hero p{font-size:1.05rem; max-width:46ch; opacity:0.82; margin-bottom:28px;}
.hero-actions{display:flex; gap:14px; flex-wrap:wrap;}
.btn-outline{border:1.5px solid var(--gold); color:var(--gold); padding:10px 22px; border-radius:4px; text-decoration:none; font-weight:600; font-size:0.9rem; transition:background .2s ease, transform .2s ease;}
.btn-outline:hover{background:var(--gold-soft); transform:translateY(-2px);}
.cta-btn{transition:background .2s ease, transform .2s ease;}
.cta-btn:hover{transform:translateY(-2px);}

.portrait-frame{position:relative; border:1px solid var(--gold); border-radius:4px; padding:14px;}
.portrait{aspect-ratio:4/5; background:linear-gradient(160deg,#1c3a54,#0a1620); display:flex; align-items:flex-end; padding:22px; font-size:0.85rem; opacity:0.7;}
.portrait-caption{position:absolute; bottom:-16px; left:24px; background:var(--gold); color:var(--navy-deep); padding:6px 14px; font-size:0.78rem; font-weight:600; border-radius:2px;}

.float-stat{
  position:absolute; background:rgba(8,23,32,0.9); border:1px solid var(--gold);
  border-radius:6px; padding:12px 16px; font-family:'IBM Plex Mono', monospace;
  font-size:0.8rem; z-index:2; backdrop-filter:blur(6px);
  animation:float-bob 5s ease-in-out infinite;
}
.float-stat b{color:var(--gold); font-size:1.05rem; display:block;}
.float-stat.fs-1{top:-14px; right:-14px; animation-delay:0s;}
.float-stat.fs-2{bottom:-14px; left:-14px; animation-delay:1.2s;}
@keyframes float-bob{ 0%,100%{transform:translateY(0);} 50%{transform:translateY(-8px);} }
@media (max-width:600px){ .float-stat{position:static; margin-top:12px; display:inline-block;} }

/* ---------------- signature: smile compare slider ---------------- */
.compare-wrap{position:relative; max-width:820px; margin:0 auto; border:1px solid var(--gold); border-radius:6px; overflow:hidden; user-select:none;}
.compare-slider{position:relative; aspect-ratio:16/8; overflow:hidden;}
.compare-before, .compare-after{
  position:absolute; inset:0; display:flex; align-items:center; justify-content:center;
  font-family:'IBM Plex Mono', monospace; font-size:0.85rem; text-align:center; padding:20px;
}
.compare-before{background:linear-gradient(160deg,#16324a,#081720); opacity:0.85;}
.compare-after{background:linear-gradient(160deg,#2a4a63,#0f2438); clip-path:inset(0 0 0 50%);}
.compare-handle-input{
  position:absolute; inset:0; width:100%; height:100%; margin:0; appearance:none; background:transparent; cursor:ew-resize; z-index:3;
}
.compare-handle-input::-webkit-slider-thumb{
  appearance:none; width:44px; height:44px; border-radius:50%; background:var(--gold);
  border:3px solid var(--navy-deep); cursor:ew-resize; box-shadow:0 4px 14px rgba(0,0,0,0.4);
}
.compare-handle-input::-moz-range-thumb{
  width:44px; height:44px; border-radius:50%; background:var(--gold);
  border:3px solid var(--navy-deep); cursor:ew-resize;
}
.compare-line{position:absolute; top:0; bottom:0; width:2px; background:var(--gold); left:50%; transform:translateX(-1px); z-index:2; pointer-events:none;}
.compare-label{position:absolute; top:14px; font-family:'IBM Plex Mono', monospace; font-size:0.68rem; text-transform:uppercase; letter-spacing:0.08em; background:rgba(8,23,32,0.75); padding:5px 10px; border-radius:3px; z-index:2;}
.compare-label.before{left:14px;}
.compare-label.after{right:14px;}

/* ---------------- ticker marquee ---------------- */
.ticker{border-top:1px solid var(--line); border-bottom:1px solid var(--line); overflow:hidden; padding:16px 0; background:var(--navy-deep);}
.ticker-track{display:flex; gap:48px; width:max-content; animation:ticker-scroll 32s linear infinite;}
.ticker-track span{font-family:'IBM Plex Mono', monospace; font-size:0.78rem; text-transform:uppercase; letter-spacing:0.1em; color:var(--gold); white-space:nowrap;}
@keyframes ticker-scroll{ from{transform:translateX(0);} to{transform:translateX(-50%);} }

/* ---------------- magnetic tilt cards ---------------- */
.tilt{transition:transform .15s ease-out, box-shadow .15s ease-out; will-change:transform;}
.tilt:hover{box-shadow:0 18px 40px -20px rgba(0,0,0,0.5);}

/* ---------------- animated counters ---------------- */
[data-counter]{font-variant-numeric:tabular-nums;}

/* ---------------- credentials timeline ---------------- */
.timeline{padding:56px 0; border-bottom:1px solid var(--line);}
.timeline-row{display:grid; grid-template-columns:repeat(4,1fr); gap:0;}
.timeline-item{padding:0 24px; border-left:1px solid var(--line);}
.timeline-item:first-child{border-left:none; padding-left:0;}
.timeline-item .year{font-family:'IBM Plex Mono', monospace; color:var(--gold); font-size:0.85rem; margin-bottom:10px; display:block;}
.timeline-item h3{font-size:1.5rem; margin-bottom:6px;}
.timeline-item p{font-size:0.88rem; opacity:0.7;}
@media (max-width:800px){ .timeline-row{grid-template-columns:1fr 1fr; row-gap:28px;} .timeline-item{border-left:none; padding-left:0;} }

/* ---------------- generic section ---------------- */
section{padding:72px 0;}
.section-head{display:flex; justify-content:space-between; align-items:flex-end; margin-bottom:44px; gap:20px; flex-wrap:wrap;}
.section-head h2{font-size:clamp(1.7rem, 3vw, 2.2rem);}
.section-head p{max-width:42ch; opacity:0.72; font-size:0.95rem;}

/* ---------------- services / procedure grid ---------------- */
.services-grid{display:grid; grid-template-columns:repeat(3,1fr); gap:1px; background:var(--line); border:1px solid var(--line);}
.service-card{background:var(--navy); padding:30px; text-decoration:none; display:block;}
.service-card .mono{color:var(--gold);}
.service-card h3{font-size:1.1rem; margin:12px 0 8px;}
.service-card p{font-size:0.9rem; opacity:0.7;}
.service-card:hover{background:var(--navy-light);}
@media (max-width:860px){ .services-grid{grid-template-columns:1fr 1fr;} }
@media (max-width:600px){ .services-grid{grid-template-columns:1fr;} .hero-grid{grid-template-columns:1fr;} }

/* ---------------- procedure detail blocks (procedures.html) ---------------- */
.procedure-block{padding:44px 0; border-top:1px solid var(--line); display:grid; grid-template-columns:220px 1fr; gap:36px;}
.procedure-block:first-child{border-top:none;}
.procedure-tag{display:flex; flex-direction:column; gap:10px;}
.procedure-tag .mono{color:var(--gold);}
.procedure-tag h3{font-size:1.35rem;}
.procedure-block p{opacity:0.8; font-size:0.96rem; max-width:66ch;}
.procedure-block p + p{margin-top:12px;}
.procedure-block ul{margin-top:12px; padding-left:20px; opacity:0.8; font-size:0.94rem;}
.procedure-block li{margin-bottom:6px;}
@media (max-width:700px){ .procedure-block{grid-template-columns:1fr; gap:14px;} }

/* ---------------- doctors ---------------- */
.doc-grid{display:grid; grid-template-columns:1fr 1fr; gap:1px; background:var(--line); border:1px solid var(--line);}
.doc-card{background:var(--navy); padding:32px;}
.doc-card .avatar{width:60px; height:60px; border:1px solid var(--gold); margin-bottom:18px;}
.doc-card h3{font-size:1.25rem; margin-bottom:6px;}
.doc-role{color:var(--gold); font-size:0.85rem; margin-bottom:14px;}
.doc-card p{font-size:0.92rem; opacity:0.75;}
@media (max-width:700px){ .doc-grid{grid-template-columns:1fr;} }

.doc-full{padding:56px 0; border-top:1px solid var(--line); display:grid; grid-template-columns:260px 1fr; gap:44px;}
.doc-full:first-child{border-top:none;}
.doc-full .avatar-lg{width:100%; aspect-ratio:4/5; border:1px solid var(--gold); background:linear-gradient(160deg,#1c3a54,#0a1620);}
.doc-full h2{font-size:1.7rem; margin-bottom:6px;}
.doc-full .doc-role{font-size:0.95rem; margin-bottom:18px;}
.doc-full p{opacity:0.8; font-size:0.96rem; max-width:70ch; margin-bottom:12px;}
.doc-full ul{padding-left:20px; opacity:0.8; font-size:0.92rem; columns:2; column-gap:30px;}
.doc-full li{margin-bottom:6px; break-inside:avoid;}
.doc-full h4{font-family:'IBM Plex Mono', monospace; text-transform:uppercase; letter-spacing:0.08em; font-size:0.72rem; color:var(--gold); margin:18px 0 10px;}
@media (max-width:760px){ .doc-full{grid-template-columns:1fr;} .doc-full ul{columns:1;} .doc-full .avatar-lg{max-width:220px;} }

/* ---------------- testimonial / quote ---------------- */
.quote-block{border-left:3px solid var(--gold); padding-left:26px; max-width:700px; margin:0 auto; text-align:left;}
.quote-block p{font-family:'Source Serif 4', serif; font-size:1.25rem; line-height:1.5; margin-bottom:16px;}
.quote-block .cite{font-size:0.85rem; opacity:0.65;}

/* ---------------- FAQ ---------------- */
.faq-item{border-top:1px solid var(--line); padding:22px 0;}
.faq-item:last-child{border-bottom:1px solid var(--line);}
.faq-q{display:flex; justify-content:space-between; align-items:center; cursor:pointer; font-weight:600; font-size:1rem; background:none; border:none; color:var(--paper); width:100%; text-align:left; font-family:inherit;}
.faq-a{max-height:0; overflow:hidden; transition:max-height .25s ease;}
.faq-a p{padding-top:12px; opacity:0.72; max-width:64ch; font-size:0.94rem;}
.faq-item.open .faq-a{max-height:260px;}
.faq-item .plus{font-family:'IBM Plex Mono', monospace; color:var(--gold); transition:transform .2s ease; flex:0 0 auto; margin-left:16px;}
.faq-item.open .plus{transform:rotate(45deg);}

/* ---------------- contact page ---------------- */
.contact-grid{display:grid; grid-template-columns:1fr 1fr; gap:48px;}
.info-card{background:var(--navy-light); border:1px solid var(--line); border-radius:4px; padding:30px; margin-bottom:20px;}
.info-card h3{font-size:1.05rem; margin-bottom:14px; color:var(--gold);}
.info-card p, .info-card li{font-size:0.94rem; opacity:0.85;}
.info-card ul{list-style:none;}
.info-card li{display:flex; justify-content:space-between; padding:6px 0; border-bottom:1px solid var(--line);}
.info-card li:last-child{border-bottom:none;}
.map-frame{border:1px solid var(--gold); border-radius:4px; overflow:hidden; height:260px; margin-top:20px;}
.map-frame iframe{width:100%; height:100%; border:0; filter:grayscale(0.3) invert(0.92) contrast(0.9);}

.contact-form{display:flex; flex-direction:column; gap:16px;}
.form-row{display:flex; flex-direction:column; gap:6px;}
.form-row label{font-size:0.85rem; color:var(--gold); font-weight:600;}
.form-row input, .form-row textarea{
  background:var(--navy-light); border:1px solid var(--line); color:var(--paper);
  padding:12px 14px; border-radius:4px; font-family:inherit; font-size:0.95rem;
}
.form-row input:focus, .form-row textarea:focus{outline:2px solid var(--gold); outline-offset:2px;}
.form-note{font-size:0.82rem; opacity:0.6;}
.submit-btn{background:var(--red); color:#fff; border:none; padding:13px 24px; border-radius:4px; font-weight:600; font-size:0.95rem; cursor:pointer; align-self:flex-start;}
.submit-btn:hover{background:var(--red-deep);}
@media (max-width:820px){ .contact-grid{grid-template-columns:1fr;} }

/* ---------------- footer ---------------- */
footer{background:var(--navy-deep); padding:56px 0 30px;}
.foot-grid{display:grid; grid-template-columns:1.2fr 1fr 1fr; gap:40px;}
footer h4{font-family:'IBM Plex Mono', monospace; font-size:0.72rem; text-transform:uppercase; letter-spacing:0.08em; margin-bottom:14px; color:var(--gold); opacity:0.85;}
footer ul{list-style:none;}
footer li{margin-bottom:8px; font-size:0.9rem; opacity:0.8;}
footer a{text-decoration:none;}
footer a:hover{color:var(--gold);}
.foot-bottom{margin-top:44px; padding-top:20px; border-top:1px solid var(--line); font-size:0.78rem; opacity:0.5; display:flex; justify-content:space-between; flex-wrap:wrap; gap:10px;}
@media (max-width:760px){ .foot-grid{grid-template-columns:1fr;} }