/* ============================================================
   ORAL DENT — Design tokens
   Ivory / charcoal editorial palette, teal accent lifted from
   the brand mark, warm brass for the CTA moment.
   ============================================================ */
:root{
  --ivory:#F6F3EC;
  --ivory-2:#EFEAE0;
  --charcoal:#171A1C;
  --charcoal-2:#0D0F10;
  --stone:#6E7376;
  --stone-light:#9AA0A3;
  --teal:#4FBFAE;
  --teal-deep:#2E8C7E;
  --brass:#C9A24B;
  --line:rgba(23,26,28,0.12);
  --line-dark:rgba(246,243,236,0.14);

  --font-display:'Fraunces', Georgia, serif;
  --font-body:'Inter', -apple-system, BlinkMacSystemFont, sans-serif;

  --container:1180px;
  --gutter:clamp(20px, 5vw, 64px);
  --radius-s:4px;
  --radius-m:8px;

  --ease:cubic-bezier(.16,.8,.24,1);
  --dur-s:.35s;
  --dur-m:.7s;
  --dur-l:1.1s;
}

@media (prefers-reduced-motion: reduce){
  *, *::before, *::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
    scroll-behavior:auto !important;
  }
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--ivory);
  color:var(--charcoal);
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
h1,h2,h3,h4{
  font-family:var(--font-display);
  font-weight:560;
  letter-spacing:-0.01em;
  margin:0 0 .5em;
  color:var(--charcoal);
}
p{margin:0 0 1em;color:var(--stone);max-width:62ch;}
ul{margin:0;padding:0;list-style:none;}
button{font-family:inherit;cursor:pointer;background:none;border:none;color:inherit;}
:focus-visible{outline:2px solid var(--teal-deep);outline-offset:3px;}

.section-inner{
  max-width:var(--container);
  margin:0 auto;
  padding:0 var(--gutter);
}
section{padding:clamp(72px,10vw,140px) 0;position:relative;}
.eyebrow{
  font-size:.8rem;
  text-transform:none;
  letter-spacing:.02em;
  color:var(--teal-deep);
  font-weight:600;
  margin:0 0 .9em;
}
.eyebrow::before{content:"— ";}

.btn{
  display:inline-flex;
  align-items:center;
  gap:.5em;
  padding:.9em 1.6em;
  border-radius:2px;
  font-weight:500;
  font-size:.95rem;
  transition:transform var(--dur-s) var(--ease), background var(--dur-s) var(--ease), color var(--dur-s) var(--ease), box-shadow var(--dur-s) var(--ease);
  white-space:nowrap;
}
.btn-primary{
  background:var(--charcoal);
  color:var(--ivory);
}
.btn-primary:hover{background:var(--teal-deep); transform:translateY(-2px);}
.btn-ghost{
  border:1px solid var(--line);
  color:var(--charcoal);
}
.btn-ghost:hover{border-color:var(--charcoal); transform:translateY(-2px);}

/* ============================================================
   INTRO
   ============================================================ */
#intro{
  position:fixed;inset:0;z-index:9999;
  background:var(--charcoal-2);
  display:flex;align-items:center;justify-content:center;flex-direction:column;
  transition:opacity .9s var(--ease), visibility .9s var(--ease);
}
#intro.is-hidden{opacity:0;visibility:hidden;pointer-events:none;}
.intro-glow{
  position:absolute;width:60vmax;height:60vmax;border-radius:50%;
  background:radial-gradient(circle, rgba(79,191,174,.16), transparent 60%);
  animation:glow-pulse 4s ease-in-out infinite;
}
@keyframes glow-pulse{
  0%,100%{transform:scale(1);opacity:.7;}
  50%{transform:scale(1.15);opacity:1;}
}
.intro-logo{
  width:min(220px, 42vw);
  height:auto;
  border-radius:50%;
  opacity:0;
  transform:scale(.82);
  animation:intro-reveal 1.6s var(--ease) forwards .2s;
  position:relative;
  box-shadow:0 0 60px rgba(79,191,174,.25);
}
@keyframes intro-reveal{
  0%{opacity:0;transform:scale(.82);filter:blur(6px);}
  60%{opacity:1;filter:blur(0);}
  100%{opacity:1;transform:scale(1);}
}
#skip-intro{
  position:absolute;
  bottom:34px;
  color:rgba(246,243,236,.55);
  font-size:.8rem;
  letter-spacing:.04em;
  border:1px solid rgba(246,243,236,.2);
  padding:.6em 1.2em;
  border-radius:2px;
  opacity:0;
  animation:fade-in .6s ease forwards 1.2s;
  transition:color .3s, border-color .3s;
}
#skip-intro:hover{color:var(--ivory); border-color:rgba(246,243,236,.5);}
@keyframes fade-in{to{opacity:1;}}

/* ============================================================
   NAVBAR
   ============================================================ */
#navbar{
  position:fixed;top:0;left:0;right:0;z-index:500;
  transition:background var(--dur-m) var(--ease), box-shadow var(--dur-m) var(--ease), padding var(--dur-m) var(--ease);
  padding:22px 0;
}
#navbar.is-scrolled{
  background:rgba(246,243,236,.86);
  backdrop-filter:blur(14px) saturate(1.4);
  box-shadow:0 1px 0 var(--line);
  padding:12px 0;
}
.nav-inner{
  max-width:var(--container);
  margin:0 auto;
  padding:0 var(--gutter);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
}
.brand{display:flex;align-items:center;gap:10px;}
.brand-mark{width:34px;height:34px;border-radius:50%;object-fit:cover;}
.brand-word{
  font-family:var(--font-display);
  font-size:1.05rem;
  letter-spacing:.01em;
}
.brand-word em{font-style:normal;color:var(--teal-deep);}

#primary-nav{display:flex;gap:30px;}
#primary-nav a{
  font-size:.92rem;
  color:var(--charcoal);
  position:relative;
  padding:4px 0;
}
#primary-nav a::after{
  content:"";position:absolute;left:0;bottom:0;width:0;height:1px;
  background:var(--teal-deep);
  transition:width var(--dur-s) var(--ease);
}
#primary-nav a:hover::after{width:100%;}

.nav-right{display:flex;align-items:center;gap:18px;}
.lang-switch{display:flex;border:1px solid var(--line);border-radius:2px;overflow:hidden;}
.lang-btn{
  padding:.4em .8em;
  font-size:.78rem;
  letter-spacing:.03em;
  color:var(--stone);
  transition:background var(--dur-s), color var(--dur-s);
}
.lang-btn.is-active{background:var(--charcoal);color:var(--ivory);}
.lang-btn:not(.is-active):hover{color:var(--charcoal);}

.nav-cta{padding:.65em 1.3em;font-size:.86rem;}

#menu-toggle{display:none;flex-direction:column;gap:5px;padding:6px;}
#menu-toggle span{width:22px;height:1.5px;background:var(--charcoal);transition:transform var(--dur-s) var(--ease), opacity var(--dur-s);}
#menu-toggle.is-open span:nth-child(1){transform:translateY(6.5px) rotate(45deg);}
#menu-toggle.is-open span:nth-child(2){opacity:0;}
#menu-toggle.is-open span:nth-child(3){transform:translateY(-6.5px) rotate(-45deg);}

#mobile-menu{
  display:none;
  flex-direction:column;
  gap:2px;
  max-height:0;
  overflow:hidden;
  background:var(--ivory);
  transition:max-height var(--dur-m) var(--ease);
}
#mobile-menu.is-open{max-height:520px;}
#mobile-menu a{
  padding:16px var(--gutter);
  border-top:1px solid var(--line);
  font-size:1.05rem;
}
#mobile-menu .btn{margin:16px var(--gutter);}

@media (max-width: 880px){
  #primary-nav, .nav-cta{display:none;}
  #menu-toggle{display:flex;}
  #mobile-menu{display:flex;}
}
@media (max-width: 420px){
  .brand-word{font-size:.92rem;white-space:nowrap;}
  .nav-right{gap:10px;}
}

/* ============================================================
   HERO
   ============================================================ */
#hero{
  min-height:100svh;
  display:flex;
  align-items:center;
  padding-top:120px;
  position:relative;
  background:
    radial-gradient(ellipse at 78% 30%, rgba(79,191,174,.10), transparent 55%),
    var(--ivory);
  overflow:hidden;
}
.hero-content{
  max-width:var(--container);
  margin:0 auto;
  padding:0 var(--gutter);
  position:relative;
  z-index:2;
  width:100%;
}
#hero h1{
  font-size:clamp(2.6rem, 6.2vw, 5.2rem);
  line-height:1.03;
  max-width:14ch;
  margin-bottom:.34em;
}
#hero h1 em{font-style:normal;color:var(--teal-deep);}
.hero-sub{font-size:1.08rem;max-width:46ch;margin-bottom:1.9em;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:3.2em;}
.hero-meta{display:flex;gap:clamp(28px,5vw,60px);flex-wrap:wrap;}
.hero-meta > div{display:flex;flex-direction:column;gap:2px;}
.hero-meta .num{font-family:var(--font-display);font-size:1.9rem;color:var(--charcoal);}
.hero-meta span:last-child{font-size:.82rem;color:var(--stone);}

/* --- CSS 3D tooth motif (stand-in when no GLTF model is supplied) --- */
.tooth-stage{
  position:absolute;
  right:-4%;
  top:50%;
  transform:translateY(-50%);
  width:min(46vw, 620px);
  height:min(46vw, 620px);
  z-index:1;
  perspective:1200px;
  opacity:.9;
}
.tooth-ring{
  position:absolute;inset:8%;
  border:1px solid var(--line);
  border-radius:50%;
}
.tooth-ring.r2{inset:0;border-color:rgba(79,191,174,.25);animation:ring-spin 40s linear infinite;}
.tooth-ring.r1{animation:ring-spin 60s linear infinite reverse;}
@keyframes ring-spin{to{transform:rotate(360deg);}}

.tooth-3d{
  position:absolute;inset:16%;
  transform-style:preserve-3d;
  animation:tooth-float 7s ease-in-out infinite;
  transition:transform .3s ease-out;
}
@keyframes tooth-float{
  0%,100%{transform:translateY(0) rotateY(-14deg);}
  50%{transform:translateY(-16px) rotateY(14deg);}
}
.tooth-svg{width:100%;height:100%;filter:drop-shadow(0 30px 40px rgba(23,26,28,.18));}
.tooth-outline{fill:var(--ivory-2);stroke:var(--charcoal);stroke-width:2;}
.tooth-line{fill:none;stroke:var(--teal-deep);stroke-width:1.4;stroke-linecap:round;opacity:.6;}

.tooth-particles span{
  position:absolute;
  width:5px;height:5px;
  border-radius:50%;
  background:var(--teal);
  opacity:.55;
}
.tooth-particles span:nth-child(1){top:15%;left:10%;animation:drift 9s ease-in-out infinite;}
.tooth-particles span:nth-child(2){top:70%;left:6%;animation:drift 11s ease-in-out infinite 1s;}
.tooth-particles span:nth-child(3){top:20%;left:88%;animation:drift 8s ease-in-out infinite .5s;}
.tooth-particles span:nth-child(4){top:80%;left:82%;animation:drift 10s ease-in-out infinite 2s;}
.tooth-particles span:nth-child(5){top:50%;left:4%;animation:drift 12s ease-in-out infinite 1.5s;}
.tooth-particles span:nth-child(6){top:46%;left:92%;animation:drift 9.5s ease-in-out infinite 2.5s;}
@keyframes drift{
  0%,100%{transform:translate(0,0);opacity:.3;}
  50%{transform:translate(-8px,-18px);opacity:.75;}
}

.scroll-cue{
  position:absolute;bottom:34px;left:50%;transform:translateX(-50%);
  width:26px;height:42px;border:1px solid var(--line);border-radius:20px;
  z-index:2;
}
.scroll-cue span{
  position:absolute;top:8px;left:50%;transform:translateX(-50%);
  width:3px;height:8px;border-radius:2px;background:var(--charcoal);
  animation:cue-drop 1.8s ease-in-out infinite;
}
@keyframes cue-drop{0%{opacity:1;top:8px;}100%{opacity:0;top:22px;}}

@media (max-width: 880px){
  .tooth-stage{
    position:relative;
    inset:auto;
    margin:0 auto 30px;
    width:60vw;height:60vw;
    max-width:340px;max-height:340px;
    right:auto;top:auto;transform:none;
  }
  #hero{flex-direction:column;padding-top:150px;}
  .hero-content{text-align:left;}
}

/* ============================================================
   REVEAL ON SCROLL (single orchestrated pattern, used sparingly)
   ============================================================ */
.reveal{opacity:0;transform:translateY(26px);transition:opacity .9s var(--ease), transform .9s var(--ease);}
.reveal.is-visible{opacity:1;transform:translateY(0);}

/* ============================================================
   EXPERIENCE / 20+ YEARS
   ============================================================ */
#experience{background:var(--charcoal);color:var(--ivory);}
.exp-grid{
  display:grid;
  grid-template-columns:.9fr 1.3fr;
  gap:clamp(40px,6vw,100px);
  align-items:center;
}
.exp-number{text-align:left;}
.exp-number .counter{
  font-family:var(--font-display);
  font-size:clamp(5rem,14vw,10rem);
  line-height:1;
  color:var(--ivory);
  font-weight:440;
}
.exp-number .plus{
  font-family:var(--font-display);
  font-size:clamp(2.4rem,6vw,4rem);
  color:var(--teal);
}
.exp-number p{color:var(--stone-light);font-size:.95rem;margin-top:.6em;}
.exp-copy h2{color:var(--ivory);font-size:clamp(1.6rem,3vw,2.3rem);max-width:16ch;}
.exp-copy p{color:var(--stone-light);}
.exp-points{display:grid;grid-template-columns:1fr 1fr;gap:10px 24px;margin-top:1.6em;}
.exp-points li{
  font-size:.92rem;color:var(--ivory);
  padding-left:1.2em;position:relative;
}
.exp-points li::before{content:"";position:absolute;left:0;top:.55em;width:6px;height:6px;border-radius:50%;background:var(--teal);}

@media (max-width:820px){
  .exp-grid{grid-template-columns:1fr;}
  .exp-points{grid-template-columns:1fr;}
}

/* ============================================================
   SERVICES
   ============================================================ */
#services h2{font-size:clamp(1.8rem,3.4vw,2.6rem);max-width:14ch;}
.services-layout{margin-top:2.4em;}
.services-tabs{display:flex;gap:10px;margin-bottom:1.6em;flex-wrap:wrap;}
.services-tab{
  padding:.75em 1.3em;
  border:1px solid var(--line);
  border-radius:2px;
  font-size:.9rem;
  color:var(--stone);
  transition:all var(--dur-s) var(--ease);
}
.services-tab.is-active{background:var(--charcoal);color:var(--ivory);border-color:var(--charcoal);}

.services-panel{
  display:grid;
  grid-template-columns:1.15fr .85fr;
  gap:clamp(20px,4vw,60px);
  border-top:1px solid var(--line);
}
.service-list{border-bottom:1px solid var(--line);}
.service-item{
  display:flex;align-items:center;justify-content:space-between;
  padding:1.15em .2em;
  border-bottom:1px solid var(--line);
  cursor:pointer;
  transition:padding-left var(--dur-s) var(--ease), color var(--dur-s) var(--ease);
}
.service-item:last-child{border-bottom:none;}
.si-name{font-size:1.05rem;font-family:var(--font-display);transition:color var(--dur-s);}
.si-arrow{
  opacity:0;transform:translateX(-6px);
  transition:opacity var(--dur-s) var(--ease), transform var(--dur-s) var(--ease);
  color:var(--teal-deep);
}
.service-item:hover, .service-item.is-active{padding-left:.6em;}
.service-item:hover .si-name, .service-item.is-active .si-name{color:var(--teal-deep);}
.service-item:hover .si-arrow, .service-item.is-active .si-arrow{opacity:1;transform:translateX(0);}

.service-visual{
  border:1px solid var(--line);
  border-radius:var(--radius-m);
  padding:clamp(24px,4vw,44px);
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  text-align:center;
  background:var(--ivory-2);
  min-height:320px;
  position:sticky;top:120px;
}
.sv-tooth{width:96px;height:96px;color:var(--teal-deep);margin-bottom:1.2em;transition:transform .5s var(--ease);}
.sv-tooth svg{width:100%;height:100%;}
.service-visual.is-updating .sv-tooth{transform:scale(.85) rotate(-6deg);}
.sv-caption{font-size:1rem;max-width:32ch;transition:opacity .3s ease;}

@media (max-width:820px){
  .services-panel{grid-template-columns:1fr;}
  .service-visual{position:relative;top:auto;min-height:220px;}
}

/* ============================================================
   TECHNOLOGY
   ============================================================ */
#technology{background:var(--ivory-2);}
#technology h2{font-size:clamp(1.8rem,3.4vw,2.6rem);max-width:16ch;}
.tech-sub{max-width:48ch;font-size:1.02rem;}

.workflow{
  position:relative;
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:24px;
  margin:4em 0 3em;
}
.workflow-line{
  position:absolute;top:24px;left:calc(12.5% - 1px);right:calc(12.5% - 1px);
  height:1px;background:var(--line);
}
.workflow-progress{
  position:absolute;top:0;left:0;height:100%;width:0%;
  background:var(--teal-deep);
  transition:width 1.4s var(--ease);
}
.workflow-step{position:relative;text-align:left;}
.wf-icon{
  width:48px;height:48px;
  border-radius:50%;
  border:1px solid var(--line);
  background:var(--ivory);
  display:flex;align-items:center;justify-content:center;
  color:var(--stone);
  margin-bottom:1.1em;
  position:relative;z-index:2;
  transition:color var(--dur-m) var(--ease), border-color var(--dur-m) var(--ease), transform var(--dur-m) var(--ease);
}
.wf-icon svg{width:22px;height:22px;}
.workflow-step.is-active .wf-icon{color:var(--teal-deep);border-color:var(--teal-deep);transform:scale(1.08);}
.workflow-step h3{font-size:1.1rem;margin-bottom:.2em;}
.workflow-step p{font-size:.86rem;margin:0;}

@media (max-width:820px){
  .workflow{grid-template-columns:1fr 1fr;row-gap:36px;}
  .workflow-line{display:none;}
}

.exocad-block{
  display:grid;
  grid-template-columns:.9fr 1.1fr;
  gap:clamp(30px,5vw,70px);
  align-items:center;
  margin-top:2em;
  padding-top:3em;
  border-top:1px solid var(--line);
}
.exocad-visual{
  background:var(--charcoal);
  border-radius:var(--radius-m);
  padding:20px;
}
.exocad-svg{width:100%;height:auto;}
.ex-frame{fill:none;stroke:rgba(246,243,236,.14);}
.ex-grid line{stroke:rgba(246,243,236,.08);}
.ex-tooth{fill:none;stroke:var(--teal);stroke-width:1.6;animation:ex-rotate 12s linear infinite;transform-origin:160px 130px;}
@keyframes ex-rotate{
  0%,100%{transform:rotateY(0deg) scale(1);}
  50%{transform:rotateY(8deg) scale(1.02);}
}
.ex-dot{fill:var(--brass);animation:ex-blink 2.4s ease-in-out infinite;}
.ex-dot:nth-child(6){animation-delay:.4s;}
.ex-dot:nth-child(7){animation-delay:.8s;}
@keyframes ex-blink{0%,100%{opacity:.4;}50%{opacity:1;}}

@media (max-width:820px){.exocad-block{grid-template-columns:1fr;}}

/* ============================================================
   ABOUT
   ============================================================ */
.about-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:clamp(30px,5vw,80px);
  align-items:center;
}
.about-images{
  position:relative;
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:14px;
  height:clamp(340px,42vw,520px);
}
.about-img{width:100%;height:100%;object-fit:cover;border-radius:var(--radius-s);}
.about-img.a1{grid-row:1 / 3;}
.about-img.a2{align-self:start;height:100%;}
.about-img.a3{align-self:end;height:100%;}
#about h2{font-size:clamp(1.8rem,3.4vw,2.6rem);}
.about-facts{
  display:grid;grid-template-columns:repeat(3,1fr);gap:20px;
  margin-top:2em;padding-top:2em;border-top:1px solid var(--line);
}
.about-facts div{display:flex;flex-direction:column;gap:.3em;}
.about-facts span{font-size:.78rem;color:var(--stone);}
.about-facts strong{font-family:var(--font-display);font-size:1.1rem;font-weight:500;}

@media (max-width:820px){
  .about-grid{grid-template-columns:1fr;}
  .about-facts{grid-template-columns:1fr;}
}

/* ============================================================
   GALLERY
   ============================================================ */
.gallery-grid{
  display:grid;
  grid-template-columns:1.3fr 1fr 1fr;
  grid-template-rows:auto auto;
  gap:14px;
  margin-top:2.4em;
}
.gallery-grid img{
  width:100%;height:100%;object-fit:cover;border-radius:var(--radius-s);
  transition:transform 1.2s var(--ease);
}
.g1{grid-row:1 / 3;height:100%;min-height:420px;}
.g2, .g3{height:100%;min-height:200px;}
.gallery-grid img:hover{transform:scale(1.03);}

@media (max-width:820px){
  .gallery-grid{grid-template-columns:1fr 1fr;}
  .g1{grid-column:1/3;grid-row:auto;min-height:280px;}
  .g2,.g3{min-height:180px;}
}

/* ============================================================
   CTA BANNER
   ============================================================ */
#cta-banner{
  background:var(--charcoal);
  color:var(--ivory);
  text-align:left;
}
.cta-inner{
  display:flex;align-items:center;justify-content:space-between;gap:30px;flex-wrap:wrap;
}
#cta-banner h2{color:var(--ivory);font-size:clamp(1.7rem,3vw,2.3rem);margin-bottom:.2em;max-width:16ch;}
#cta-banner p{color:var(--stone-light);margin-bottom:0;max-width:40ch;}
#cta-banner .btn-primary{background:var(--teal-deep);}
#cta-banner .btn-primary:hover{background:var(--teal);color:var(--charcoal-2);}

/* ============================================================
   CONTACT
   ============================================================ */
.contact-grid{
  display:grid;
  grid-template-columns:1.2fr .8fr;
  gap:clamp(30px,5vw,70px);
}
#contact h2{font-size:clamp(1.8rem,3.4vw,2.6rem);}
.contact-list{margin:1.8em 0;}
.contact-list > div{
  display:flex;justify-content:space-between;
  padding:.9em 0;border-bottom:1px solid var(--line);
  max-width:440px;
}
.contact-list dt{color:var(--stone);font-size:.88rem;margin:0;}
.contact-list dd{margin:0;font-weight:500;}
.contact-actions{display:flex;flex-wrap:wrap;gap:12px;}
.contact-map{
  position:relative;
  overflow:hidden;
  border:1px solid var(--line);
  border-radius:var(--radius-m);
  background:
    repeating-linear-gradient(0deg, rgba(23,26,28,.04) 0 1px, transparent 1px 34px),
    repeating-linear-gradient(90deg, rgba(23,26,28,.04) 0 1px, transparent 1px 34px),
    var(--ivory-2);
  display:flex;align-items:center;justify-content:center;
  min-height:320px;
}
.map-frame{position:absolute;inset:0;width:100%;height:100%;min-height:320px;border:0;display:block;}
.map-placeholder{position:absolute;left:16px;right:16px;bottom:16px;text-align:center;color:var(--stone);padding:10px 14px;background:rgba(246,243,236,.92);border:1px solid rgba(23,26,28,.1);border-radius:var(--radius-s);box-shadow:0 5px 18px rgba(23,26,28,.12);}
.map-placeholder svg{margin:0 auto .6em;color:var(--teal-deep);}
.map-placeholder a{font-size:.86rem;color:var(--teal-deep);text-decoration:underline;text-underline-offset:3px;}
.map-placeholder a:hover{color:var(--charcoal);}

@media (max-width:820px){.contact-grid{grid-template-columns:1fr;}}

/* ============================================================
   FOOTER
   ============================================================ */
#site-footer{background:var(--charcoal-2);color:var(--stone-light);padding:76px 0 0;}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1fr;
  gap:40px;
  padding-bottom:50px;
  border-bottom:1px solid var(--line-dark);
}
.footer-brand .brand-word{color:var(--ivory);font-size:1.2rem;}
.footer-brand p{margin-top:.6em;font-size:.88rem;}
.footer-col h4{color:var(--ivory);font-size:.82rem;font-weight:600;margin-bottom:1em;letter-spacing:.02em;}
.footer-col{display:flex;flex-direction:column;gap:.7em;font-size:.9rem;}
.footer-col a:hover{color:var(--teal);}
.footer-lang{border-color:var(--line-dark);width:fit-content;flex-direction:column;}
.footer-lang .lang-btn{color:var(--stone-light);text-align:left;}
.footer-lang .lang-btn.is-active{background:var(--teal-deep);color:var(--ivory);}
.footer-bottom{padding:26px var(--gutter);font-size:.8rem;color:var(--stone);}

@media (max-width:820px){
  .footer-grid{grid-template-columns:1fr 1fr;}
}

/* ============================================================
   AI ASSISTANT WIDGET
   ============================================================ */
#whatsapp-contact{
  position:fixed;right:92px;bottom:22px;z-index:600;
  width:58px;height:58px;border-radius:50%;
  background:#25D366;color:#fff;
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 10px 30px rgba(23,26,28,.25);
  transition:transform var(--dur-s) var(--ease), background var(--dur-s);
}
#whatsapp-contact:hover{transform:translateY(-2px) scale(1.03);background:#1da851;}
#whatsapp-contact svg{width:29px;height:29px;}
#ai-assistant{position:fixed;right:22px;bottom:22px;z-index:600;}
#ai-toggle{
  width:58px;height:58px;border-radius:50%;
  background:var(--charcoal);color:var(--ivory);
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 10px 30px rgba(23,26,28,.28);
  transition:transform var(--dur-s) var(--ease), background var(--dur-s);
}
#ai-toggle:hover{transform:translateY(-2px) scale(1.03);background:var(--teal-deep);}
#ai-toggle svg{width:24px;height:24px;}
#ai-toggle svg[hidden]{display:none;}

#ai-panel{
  position:absolute;
  bottom:74px;right:0;
  width:min(340px, 84vw);
  background:var(--ivory);
  border:1px solid var(--line);
  border-radius:var(--radius-m);
  box-shadow:0 24px 60px rgba(23,26,28,.22);
  overflow:hidden;
  transform-origin:bottom right;
  animation:ai-in .35s var(--ease);
}
@keyframes ai-in{
  from{opacity:0;transform:scale(.92) translateY(10px);}
  to{opacity:1;transform:scale(1) translateY(0);}
}
.ai-header{
  display:flex;align-items:center;gap:10px;
  padding:16px 18px;
  background:var(--charcoal);color:var(--ivory);
  font-size:.92rem;font-weight:500;
}
.ai-dot{width:8px;height:8px;border-radius:50%;background:var(--teal);box-shadow:0 0 0 4px rgba(79,191,174,.2);}
.ai-body{padding:16px 18px 20px;max-height:60vh;overflow-y:auto;}
.ai-greeting{font-size:.88rem;margin-bottom:1em;}
.ai-suggestions{display:flex;flex-direction:column;gap:8px;}
.ai-chip{
  text-align:left;
  padding:.7em .9em;
  border:1px solid var(--line);
  border-radius:6px;
  font-size:.84rem;
  transition:border-color var(--dur-s), background var(--dur-s);
}
.ai-chip:hover{border-color:var(--teal-deep);background:var(--ivory-2);}
.ai-answer{margin-top:14px;padding-top:14px;border-top:1px solid var(--line);}
.ai-answer .ai-q{font-weight:600;font-size:.9rem;margin-bottom:.5em;}
.ai-answer .ai-a{font-size:.88rem;margin:0;}
.ai-back{margin-top:12px;font-size:.8rem;color:var(--teal-deep);text-decoration:underline;}

@media (max-width:480px){
  #whatsapp-contact{right:86px;bottom:14px;width:54px;height:54px;}
  #ai-assistant{right:14px;bottom:14px;}
  #ai-panel{width:min(320px,88vw);}
}