/* ==========================================================================
   Strata Spine Institute — styles.css
   Mobile-first. No frameworks.
   ========================================================================== */

/* ---------- Design tokens ---------- */
:root{
  --stone-900:#0A0908; --stone-850:#100E0A; --stone-800:#16130E; --stone-700:#1C1913;
  --gold-300:#C9A468; --gold-400:#B08D57; --gold-600:#8C6D3F; --gold-700:#5E4A2C;
  --gold-glow:rgba(201,164,104,0.35); --gold-hair:rgba(201,164,104,0.18);
  --cream:#EDE6D8; --taupe:#9C917E; --taupe-bright:#B3A992;
  --grad-gold:linear-gradient(145deg,#E7C888 0%,#C9A468 45%,#8C6D3F 100%);
  --grad-scrim-left:linear-gradient(90deg,var(--stone-900) 0%,rgba(10,9,8,0.85) 42%,rgba(10,9,8,0.25) 100%);
  --grad-vignette:radial-gradient(120% 80% at 70% 30%,transparent 0%,rgba(10,9,8,0.75) 100%);
  --font-display:"Cormorant Garamond",Georgia,serif;
  --font-caps:"Cinzel",Georgia,serif;
  --font-body:"Jost",system-ui,-apple-system,"Segoe UI",sans-serif;
  --space-1:.5rem; --space-2:1rem; --space-3:1.5rem; --space-4:2rem;
  --space-5:3rem; --space-6:4rem; --space-7:6rem;
  --section-pad:clamp(4.5rem,9vw,8rem); --container:1200px; --gutter:clamp(1.25rem,5vw,2.5rem);
  --radius-sm:6px; --radius-md:12px; --radius-lg:18px;
  --border-hair:1px solid var(--gold-hair);
  --ease-out:cubic-bezier(0.22,1,0.36,1); --ease-soft:cubic-bezier(0.4,0,0.2,1);
  --dur-micro:200ms; --dur-reveal:800ms;
  --z-base:0; --z-raised:10; --z-nav:100; --z-progress:110; --z-menu:200; --z-toast:300; --z-skip:400;
}

/* ---------- Reset ---------- */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{-webkit-text-size-adjust:100%;text-size-adjust:100%}
html{scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
body{overflow-x:clip;background:var(--stone-900);color:var(--taupe);font-family:var(--font-body);
  font-weight:400;font-size:1.0625rem;line-height:1.75;letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
@media (min-width:768px){body{font-size:1.125rem}}
img,svg{display:block;max-width:100%}
img{height:auto}
a{color:inherit;text-decoration:none}
ul,ol{list-style:none}
button,input,select,textarea{font:inherit;color:inherit;background:none;border:none}
button{cursor:pointer}
h1,h2,h3,h4{font-weight:600;line-height:1.1}

/* Section anchor offset (accounts for sticky nav) */
section[id],[id]{scroll-margin-top:calc(72px + 12px)}

/* ---------- Focus ---------- */
:focus-visible{outline:2px solid var(--gold-300);outline-offset:3px}

/* ---------- Skip link ---------- */
.skip-link{
  position:absolute;top:-100px;left:var(--space-2);
  background:var(--gold-300);color:var(--stone-900);
  padding:.75rem 1.25rem;border-radius:var(--radius-sm);
  font-family:var(--font-caps);font-weight:600;letter-spacing:.08em;
  z-index:var(--z-skip);transition:top var(--dur-micro) var(--ease-out);
}
.skip-link:focus{top:var(--space-2)}

/* ---------- Layout helpers ---------- */
.container{max-width:var(--container);margin-inline:auto;padding-inline:var(--gutter)}
.section{padding-block:var(--section-pad);position:relative}
.section--alt{background:var(--stone-850)}
.section__head{max-width:640px;margin-bottom:var(--space-6)}
.section__head--center{margin-inline:auto;text-align:center}
.eyebrow{
  display:inline-block;font-family:var(--font-caps);font-weight:600;font-size:.72rem;
  letter-spacing:.28em;text-transform:uppercase;color:var(--gold-300);margin-bottom:var(--space-2)
}
h2{font-family:var(--font-display);font-weight:600;text-transform:none;
  font-size:clamp(2rem,4.2vw,3.25rem);color:var(--cream);line-height:1.1}
.section__head p{margin-top:var(--space-2);max-width:56ch}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:.5rem;
  min-height:48px;padding:.9rem 1.9rem;border-radius:var(--radius-sm);
  font-family:var(--font-body);font-weight:500;font-size:.85rem;
  letter-spacing:.1em;text-transform:uppercase;
  transition:box-shadow var(--dur-micro) var(--ease-soft),transform var(--dur-micro) var(--ease-soft),border-color var(--dur-micro) var(--ease-soft);
  position:relative;overflow:hidden;white-space:nowrap
}
.btn-gold{background:var(--grad-gold);color:var(--stone-900)}
.btn-gold::after{content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,transparent 30%,rgba(255,255,255,.35) 50%,transparent 70%);
  transform:translateX(-140%) skewX(-18deg)}
.btn-gold:hover,.btn-gold:focus-visible{box-shadow:0 8px 30px var(--gold-glow);transform:translateY(-2px)}
.btn-gold:hover::after,.btn-gold:focus-visible::after{animation:sheen 900ms var(--ease-soft)}
.btn-gold--pulse::after{animation:sheen 900ms var(--ease-soft) infinite;animation-delay:6s}
.btn-outline{border:1px solid var(--gold-600);color:var(--cream);background:transparent}
.btn-outline:hover,.btn-outline:focus-visible{border-color:var(--gold-300);box-shadow:0 8px 30px var(--gold-glow);transform:translateY(-2px)}
.btn-block{width:100%}
@keyframes sheen{0%{transform:translateX(-140%) skewX(-18deg)}100%{transform:translateX(140%) skewX(-18deg)}}

/* ---------- Reveal animation ---------- */
.reveal{opacity:0;transform:translateY(24px);
  transition:opacity var(--dur-reveal) var(--ease-out),transform var(--dur-reveal) var(--ease-out)}
.reveal.is-visible{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none}
  *,*::before,*::after{animation-duration:0.01ms !important;animation-iteration-count:1 !important;transition-duration:0.01ms !important;scroll-behavior:auto !important}
}

@keyframes shimmer{0%{background-position:-200% 0}100%{background-position:200% 0}}
.shimmer-text{background:var(--grad-gold);background-size:200% 100%;
  -webkit-background-clip:text;background-clip:text;color:transparent;
  animation:shimmer 6s linear infinite}

/* ---------- Duotone (photo overlay recipe) ---------- */
.duotone{filter:grayscale(1) contrast(1.05) brightness(.85);position:relative}
.duotone::after{content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(201,164,104,.22),rgba(10,9,8,.55));
  mix-blend-mode:overlay;pointer-events:none}

/* ---------- Media wrapper (scale-in reveal) ---------- */
.media-wrap{overflow:hidden;border-radius:var(--radius-md);position:relative}
.media-wrap img{transition:transform 900ms var(--ease-out)}
.media-wrap.is-visible img{transform:scale(1)}
.media-wrap:not(.is-visible) img{transform:scale(1.06)}

/* ==========================================================================
   NAV
   ========================================================================== */
.progress-bar{
  position:fixed;top:0;left:0;width:100%;height:2px;background:var(--grad-gold);
  transform:scaleX(0);transform-origin:left;z-index:var(--z-progress);will-change:transform
}
.nav{
  position:sticky;top:0;left:0;right:0;height:64px;z-index:var(--z-nav);
  background:rgba(10,9,8,0.6);
  -webkit-backdrop-filter:blur(16px) saturate(1.2);backdrop-filter:blur(16px) saturate(1.2);
  border-bottom:var(--border-hair);
  transition:background var(--dur-micro) var(--ease-soft)
}
@media (min-width:768px){.nav{height:72px}}
.nav__inner{
  max-width:var(--container);margin-inline:auto;padding-inline:var(--gutter);
  height:100%;display:flex;align-items:center;justify-content:space-between;gap:var(--space-3)
}
.logo-lockup{display:flex;align-items:center;gap:.6rem}
.logo-lockup .logo-mark{width:26px;height:auto;flex-shrink:0}
@media (min-width:768px){.logo-lockup .logo-mark{width:30px}}
.logo-lockup__type{display:flex;flex-direction:column;line-height:1.1}
.logo-lockup__brand{font-family:var(--font-caps);font-weight:600;font-size:.95rem;letter-spacing:.28em;color:var(--cream)}
.logo-lockup__sub{font-family:var(--font-caps);font-weight:500;font-size:.5rem;letter-spacing:.32em;color:var(--taupe);margin-top:.15rem}

.nav__links{display:none}
@media (min-width:1024px){
  .nav__links{display:flex;align-items:center;gap:var(--space-4);flex:1;justify-content:center}
}
.nav__link{
  position:relative;font-family:var(--font-body);font-weight:500;font-size:.8rem;
  letter-spacing:.14em;text-transform:uppercase;color:var(--taupe);padding-block:.5rem;
  transition:color var(--dur-micro) var(--ease-soft)
}
.nav__link::after{
  content:"";position:absolute;left:0;bottom:0;width:100%;height:1px;background:var(--gold-300);
  transform:scaleX(0);transform-origin:left;transition:transform var(--dur-micro) var(--ease-out)
}
.nav__link:hover,.nav__link:focus-visible{color:var(--cream)}
.nav__link:hover::after,.nav__link:focus-visible::after{transform:scaleX(1)}

.nav__right{display:flex;align-items:center;gap:var(--space-3)}
.nav__cta{display:none}
@media (min-width:640px){.nav__cta{display:inline-flex}}
.nav__cta.btn{padding:.7rem 1.3rem;font-size:.72rem}

.nav__burger{
  display:flex;align-items:center;justify-content:center;width:44px;height:44px;
  border-radius:var(--radius-sm);position:relative;flex-shrink:0
}
@media (min-width:1024px){.nav__burger{display:none}}
.nav__burger-box{width:22px;height:14px;position:relative}
.nav__burger-line{
  position:absolute;left:0;width:100%;height:1.5px;background:var(--cream);
  transition:transform var(--dur-micro) var(--ease-soft),opacity var(--dur-micro) var(--ease-soft)
}
.nav__burger-line:nth-child(1){top:0}
.nav__burger-line:nth-child(2){top:50%;transform:translateY(-50%)}
.nav__burger-line:nth-child(3){bottom:0}
.nav__burger[aria-expanded="true"] .nav__burger-line:nth-child(1){transform:translateY(6.25px) rotate(45deg)}
.nav__burger[aria-expanded="true"] .nav__burger-line:nth-child(2){opacity:0}
.nav__burger[aria-expanded="true"] .nav__burger-line:nth-child(3){transform:translateY(-6.25px) rotate(-45deg)}

/* Mobile menu overlay */
.mobile-menu{
  position:fixed;inset:0;background:rgba(10,9,8,0.97);
  -webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);
  z-index:var(--z-menu);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:var(--space-4);
  opacity:0;visibility:hidden;transition:opacity var(--dur-micro) var(--ease-soft),visibility 0s linear var(--dur-micro)
}
.mobile-menu.is-open{opacity:1;visibility:visible;transition:opacity var(--dur-micro) var(--ease-soft)}
@media (min-width:1024px){.mobile-menu{display:none}}
.mobile-menu__close{position:absolute;top:1.25rem;right:var(--gutter);width:44px;height:44px}
.mobile-menu__links{display:flex;flex-direction:column;align-items:center;gap:var(--space-4);text-align:center}
.mobile-menu__link{
  font-family:var(--font-caps);font-weight:600;font-size:1.4rem;letter-spacing:.1em;
  text-transform:uppercase;color:var(--cream)
}
.mobile-menu__link:hover,.mobile-menu__link:focus-visible{color:var(--gold-300)}
.mobile-menu__cta{margin-top:var(--space-3)}
body.menu-open{overflow:hidden}

/* ==========================================================================
   HERO
   ========================================================================== */
.hero{
  position:relative;min-height:100vh;min-height:100svh;display:flex;flex-direction:column;
  justify-content:center;padding-top:calc(64px + var(--space-6));padding-bottom:var(--space-6);
  overflow:hidden
}
@media (min-width:768px){.hero{padding-top:calc(72px + var(--space-6))}}
.hero__bg{position:absolute;inset:0;z-index:var(--z-base)}
.hero__bg-img{
  position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:center;
  will-change:transform
}
.hero__bg-scrim{position:absolute;inset:0;background:rgba(10,9,8,0.82)}
.hero__bg-vignette{position:absolute;inset:0;background:var(--grad-vignette)}
@media (min-width:1024px){
  .hero__bg-img{left:auto;right:0;width:52%}
  .hero__bg-scrim{background:var(--grad-scrim-left)}
}

.hero__grid{
  position:relative;z-index:var(--z-raised);max-width:var(--container);margin-inline:auto;
  padding-inline:var(--gutter);display:flex;flex-direction:column;gap:var(--space-5)
}
@media (min-width:1024px){
  .hero__grid{
    display:grid;align-items:center;gap:var(--space-4);
    grid-template-columns:minmax(0,1.05fr) minmax(360px,0.95fr);
    grid-template-rows:auto 1fr;
    grid-template-areas:"intro form" "support form";
  }
}
.hero__intro{grid-area:intro}
.hero__support{grid-area:support}
.hero__form-wrap{grid-area:form}

.hero__eyebrow{
  font-family:var(--font-caps);font-weight:600;font-size:.78rem;letter-spacing:.28em;
  text-transform:uppercase;color:var(--gold-300);margin-bottom:var(--space-3)
}
.hero__title{
  font-family:var(--font-display);font-weight:600;text-transform:uppercase;
  font-size:clamp(2.6rem,4.2vw,3.7rem);line-height:1.08;margin-bottom:var(--space-3)
}
.hero__title span{display:block}
.hero__title .line-1{color:var(--cream)}
.hero__title .line-2{color:var(--gold-300)}
.hero__sub{max-width:46ch;font-size:1.05rem;margin-bottom:var(--space-4)}
.hero__actions{display:flex;flex-wrap:wrap;gap:var(--space-2);margin-top:var(--space-4)}

.hero__support-list{display:grid;grid-template-columns:repeat(2,1fr);gap:var(--space-3);margin-top:var(--space-5)}
@media (min-width:1024px){.hero__support-list{margin-top:0}}
.hero__support-item{display:flex;align-items:flex-start;gap:.6rem}
.hero__support-item svg{flex-shrink:0;width:24px;height:24px;stroke:var(--gold-400)}
.hero__support-item span{
  font-family:var(--font-body);font-weight:500;font-size:.72rem;letter-spacing:.1em;
  text-transform:uppercase;color:var(--cream);padding-top:.2rem
}

/* Form card */
.form-card{
  background:var(--stone-800);border:var(--border-hair);border-radius:var(--radius-lg);
  padding:var(--space-4);box-shadow:0 20px 60px rgba(0,0,0,0.45);max-width:440px;
  margin-inline:auto;width:100%
}
@media (min-width:1024px){.form-card{margin-inline:0}}
.form-card__title{
  font-family:var(--font-caps);font-weight:600;font-size:1rem;letter-spacing:.12em;
  text-align:center;color:var(--cream);margin-bottom:var(--space-3)
}
.field{margin-bottom:var(--space-2)}
.field label{
  display:block;font-size:.7rem;letter-spacing:.08em;text-transform:uppercase;
  color:var(--taupe);margin-bottom:.4rem
}
.field input,.field select,.field textarea{
  width:100%;background:var(--stone-900);border:1px solid rgba(201,164,104,0.25);
  border-radius:var(--radius-sm);padding:.85rem 1rem;color:var(--cream);font-size:.95rem;
  transition:border-color var(--dur-micro) var(--ease-soft)
}
.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--gold-300)}
.field select{appearance:none;-webkit-appearance:none;
  background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'><path d='M1 1l5 5 5-5' stroke='%23C9A468' stroke-width='1.5' fill='none' stroke-linecap='round' stroke-linejoin='round'/></svg>");
  background-repeat:no-repeat;background-position:right 1rem center}
.field select:invalid{color:var(--taupe)}
.field textarea{min-height:80px;resize:vertical}
.field__error{display:none;color:#E08A6A;font-size:.75rem;margin-top:.4rem}
.field.has-error input,.field.has-error select,.field.has-error textarea{border-color:#E08A6A}
.field.has-error .field__error{display:block}
.form-card__submit{margin-top:var(--space-2)}
.form-card__security{
  display:flex;align-items:center;justify-content:center;gap:.4rem;margin-top:var(--space-3);
  font-size:.75rem;color:var(--taupe)
}
.form-card__security svg{width:14px;height:14px;stroke:var(--taupe)}
.form-success{
  display:none;text-align:center;padding:var(--space-3) 0;color:var(--gold-300);
  font-family:var(--font-caps);font-weight:600;letter-spacing:.04em;font-size:1rem
}
.form-success.is-visible{display:block}
.form-card form.is-hidden{display:none}

.hero__scroll{
  position:absolute;left:var(--gutter);bottom:var(--space-4);z-index:var(--z-raised);
  display:none;flex-direction:column;align-items:flex-start;gap:.6rem
}
@media (min-width:640px){.hero__scroll{display:flex}}
.hero__scroll-label{font-family:var(--font-caps);font-size:.65rem;letter-spacing:.3em;color:var(--taupe)}
.hero__scroll-line{width:1px;height:56px;background:linear-gradient(180deg,var(--gold-300),transparent);
  animation:scrollDrift 2.4s var(--ease-soft) infinite}
@keyframes scrollDrift{0%,100%{transform:translateY(0);opacity:1}50%{transform:translateY(10px);opacity:.4}}

/* ==========================================================================
   TRUST BAR
   ========================================================================== */
.trust{padding-block:var(--space-6);border-top:var(--border-hair);border-bottom:var(--border-hair)}
.trust__heading{
  text-align:center;font-family:var(--font-caps);font-weight:600;font-size:.85rem;
  letter-spacing:.24em;color:var(--gold-300);margin-bottom:var(--space-5)
}
.trust__row{
  display:grid;grid-template-columns:repeat(2,1fr);gap:var(--space-4);align-items:center;
  justify-items:center;text-align:center
}
@media (min-width:768px){.trust__row{grid-template-columns:repeat(4,1fr)}}
.trust__item{
  color:var(--taupe);opacity:.75;font-family:var(--font-caps);font-weight:500;
  font-size:.72rem;letter-spacing:.08em;text-transform:uppercase;line-height:1.4
}

/* ==========================================================================
   VALUE STRIP
   ========================================================================== */
.value-strip{padding-block:var(--space-6)}
.value-strip__grid{display:grid;grid-template-columns:1fr;gap:var(--space-4)}
@media (min-width:640px){.value-strip__grid{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1024px){.value-strip__grid{grid-template-columns:repeat(4,1fr)}}
.value-item{display:flex;flex-direction:column;gap:.75rem}
.value-item svg{width:34px;height:34px;stroke:var(--gold-400)}
.value-item h3{
  font-family:var(--font-body);font-weight:500;font-size:.95rem;letter-spacing:.06em;
  text-transform:uppercase;color:var(--cream)
}
.value-item p{font-size:.9rem;color:var(--taupe)}

/* ==========================================================================
   ABOUT CARDS
   ========================================================================== */
.about__grid{display:grid;grid-template-columns:1fr;gap:var(--space-4)}
@media (min-width:768px){.about__grid{grid-template-columns:repeat(3,1fr)}}
.card{
  background:var(--stone-800);border:1px solid var(--gold-hair);border-radius:var(--radius-lg);
  padding:var(--space-4);transition:transform 220ms var(--ease-soft),border-color 220ms var(--ease-soft),box-shadow 220ms var(--ease-soft)
}
.card:hover{transform:translateY(-5px);border-color:rgba(201,164,104,0.6);box-shadow:0 16px 40px var(--gold-glow)}
.card svg{width:40px;height:40px;stroke:var(--gold-400);margin-bottom:var(--space-3)}
.card h3{
  font-family:var(--font-display);font-weight:600;font-size:1.4rem;color:var(--cream);margin-bottom:.6rem
}
.card p{font-size:.95rem;color:var(--taupe)}

/* ---------- About: ambient shader layer ---------- */
.about__shader{
  position:absolute;inset:0;z-index:var(--z-base);pointer-events:none;overflow:hidden;
  opacity:.5;
  -webkit-mask-image:radial-gradient(125% 100% at 50% 40%,#000 55%,transparent 100%);
  mask-image:radial-gradient(125% 100% at 50% 40%,#000 55%,transparent 100%);
}
.about__shader canvas{display:block;width:100%;height:100%}
/* scrim above the canvas, below content — guarantees heading/eyebrow legibility */
.about__shader::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(16,14,10,.7) 0%,rgba(16,14,10,.2) 45%,rgba(16,14,10,.55) 100%);
}
/* lift existing content above the z-index:0 shader layer */
#about > .container{position:relative;z-index:var(--z-raised)}
@media (prefers-reduced-motion:reduce){
  .about__shader{opacity:.32}
}

/* ==========================================================================
   SPECTACLE
   ========================================================================== */
.spectacle{position:relative;padding-block:var(--space-7);overflow:hidden}
.spectacle__media{position:absolute;inset:0;z-index:var(--z-base)}
.spectacle__media img{width:100%;height:100%;object-fit:cover}
.spectacle__media::after{content:"";position:absolute;inset:0;background:var(--grad-vignette)}
.spectacle__media::before{content:"";position:absolute;inset:0;background:rgba(10,9,8,0.55);z-index:1}
.spectacle__content{position:relative;z-index:var(--z-raised);max-width:720px}
.spectacle h2{margin-bottom:var(--space-3)}
.spectacle__body{font-size:1.05rem;color:var(--cream);opacity:.85;max-width:56ch;margin-bottom:var(--space-5)}
.spectacle__quote{
  position:relative;padding-left:var(--space-4);margin-bottom:var(--space-6);max-width:52ch
}
.spectacle__quote-mark{
  font-family:var(--font-display);font-size:5rem;line-height:1;color:var(--gold-300);
  opacity:.5;position:absolute;left:-.5rem;top:-2rem
}
.spectacle__quote blockquote{
  font-family:var(--font-display);font-style:italic;font-weight:500;font-size:clamp(1.3rem,2.4vw,1.75rem);
  color:var(--cream);line-height:1.4
}
.spectacle__quote cite{
  display:block;margin-top:var(--space-2);font-style:normal;font-family:var(--font-caps);
  font-size:.75rem;letter-spacing:.1em;color:var(--gold-300)
}
.spectacle__counters{display:grid;grid-template-columns:1fr;gap:var(--space-4)}
@media (min-width:640px){.spectacle__counters{grid-template-columns:repeat(3,1fr)}}
.counter{text-align:left}
.counter__num{
  font-family:var(--font-display);font-weight:600;font-size:clamp(2.5rem,5vw,3.5rem);color:var(--gold-300);
  line-height:1
}
.counter__label{
  margin-top:.5rem;font-size:.85rem;letter-spacing:.04em;color:var(--cream);opacity:.8;max-width:22ch
}

/* ==========================================================================
   TREATMENTS
   ========================================================================== */
.treatments__grid{display:grid;grid-template-columns:1fr;gap:var(--space-4)}
@media (min-width:640px){.treatments__grid{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1024px){.treatments__grid{grid-template-columns:repeat(3,1fr)}}
.treatment-card{
  position:relative;background:var(--stone-800);border:1px solid var(--gold-hair);
  border-radius:var(--radius-lg);padding:var(--space-4);overflow:hidden;cursor:pointer;
  transition:transform 220ms var(--ease-soft),border-color 220ms var(--ease-soft),box-shadow 220ms var(--ease-soft)
}
.treatment-card:hover,.treatment-card:focus-within{transform:translateY(-5px);border-color:rgba(201,164,104,0.6);box-shadow:0 16px 40px var(--gold-glow)}
.treatment-card__num{
  font-family:var(--font-display);font-weight:600;font-size:4rem;color:var(--gold-300);
  opacity:.16;position:absolute;top:.25rem;right:1rem;line-height:1;pointer-events:none
}
.treatment-card__title{
  font-family:var(--font-display);font-weight:600;font-size:1.35rem;color:var(--cream);
  margin-bottom:var(--space-2);position:relative;max-width:80%
}
.treatment-card__desc{
  font-size:.92rem;color:var(--taupe);max-height:0;opacity:0;overflow:hidden;
  transition:max-height 320ms var(--ease-soft),opacity 320ms var(--ease-soft),margin-top 320ms var(--ease-soft)
}
.treatment-card:hover .treatment-card__desc,
.treatment-card:focus-within .treatment-card__desc,
.treatment-card[aria-expanded="true"] .treatment-card__desc{
  max-height:220px;opacity:1;margin-top:.25rem
}
.treatment-card__toggle{
  display:inline-flex;align-items:center;gap:.4rem;margin-top:var(--space-2);
  font-size:.7rem;letter-spacing:.1em;text-transform:uppercase;color:var(--gold-300)
}
@media (min-width:1024px){.treatment-card__toggle{display:none}}

/* ==========================================================================
   CONDITIONS
   ========================================================================== */
.conditions__intro{max-width:60ch;margin-bottom:var(--space-5)}
.conditions__grid{
  display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:var(--space-2)
}
.condition{
  background:var(--stone-800);border:1px solid var(--gold-hair);border-radius:var(--radius-md);
  transition:border-color var(--dur-micro) var(--ease-soft)
}
.condition[open]{grid-column:1/-1;border-color:rgba(201,164,104,0.5)}
.condition summary{
  list-style:none;cursor:pointer;padding:1rem 1.1rem;display:flex;align-items:center;
  justify-content:space-between;gap:.75rem;font-family:var(--font-body);font-weight:500;
  font-size:.92rem;color:var(--cream);min-height:44px
}
.condition summary::-webkit-details-marker{display:none}
.condition summary .cond-toggle{
  flex-shrink:0;width:20px;height:20px;position:relative
}
.condition summary .cond-toggle::before,.condition summary .cond-toggle::after{
  content:"";position:absolute;background:var(--gold-300);top:50%;left:50%;
  transform:translate(-50%,-50%);transition:transform var(--dur-micro) var(--ease-soft)
}
.condition summary .cond-toggle::before{width:12px;height:1.5px}
.condition summary .cond-toggle::after{width:1.5px;height:12px}
.condition[open] summary .cond-toggle::after{transform:translate(-50%,-50%) rotate(90deg);opacity:0}
.condition__body{padding:0 1.1rem 1.25rem;font-size:.9rem;color:var(--taupe)}

/* ---------- Conditions: ambient shader layer ---------- */
.conditions__shader{
  position:absolute;inset:0;z-index:var(--z-base);pointer-events:none;overflow:hidden;
  opacity:.4;
  -webkit-mask-image:radial-gradient(125% 100% at 50% 40%,#000 55%,transparent 100%);
  mask-image:radial-gradient(125% 100% at 50% 40%,#000 55%,transparent 100%);
}
.conditions__shader canvas{display:block;width:100%;height:100%}
/* scrim above the canvas, below content — guarantees heading/card legibility */
.conditions__shader::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(16,14,10,.72) 0%,rgba(16,14,10,.45) 42%,rgba(16,14,10,.68) 100%);
}
/* lift existing content above the z-index:0 shader layer */
#conditions > .container{position:relative;z-index:var(--z-raised)}
@media (prefers-reduced-motion:reduce){
  .conditions__shader{opacity:.28}
}

/* ==========================================================================
   METHOD (timeline)
   ========================================================================== */
.method{position:relative}
.method__list{position:relative;max-width:760px;margin-inline:auto}
.method__line{
  position:absolute;left:19px;top:8px;bottom:8px;width:1px;background:var(--gold-hair);
  transform-origin:top;
}
.method__line-fill{
  position:absolute;left:0;top:0;width:100%;height:100%;background:var(--grad-gold);
  transform:scaleY(0);transform-origin:top;transition:transform 900ms var(--ease-out)
}
.method__line-fill.is-visible{transform:scaleY(1)}
@media (min-width:768px){.method__line{left:29px}}
.method__step{position:relative;padding-left:56px;padding-bottom:var(--space-5)}
.method__step:last-child{padding-bottom:0}
.method__marker{
  position:absolute;left:0;top:0;width:40px;height:40px;border-radius:50%;
  background:var(--stone-800);border:1px solid var(--gold-400);display:flex;align-items:center;
  justify-content:center;font-family:var(--font-display);font-weight:600;color:var(--gold-300);font-size:1.1rem
}
@media (min-width:768px){.method__step{padding-left:76px}.method__marker{width:60px;height:60px;font-size:1.4rem}}
.method__step h3{font-family:var(--font-display);font-weight:600;font-size:1.4rem;color:var(--cream);margin-bottom:.5rem}
.method__step p{font-size:.95rem;max-width:56ch}

/* ==========================================================================
   TECHNOLOGY
   ========================================================================== */
.tech__grid{display:grid;grid-template-columns:1fr;gap:var(--space-4)}
@media (min-width:640px){.tech__grid{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1024px){.tech__grid{grid-template-columns:repeat(4,1fr)}}
.tech-card{
  background:var(--stone-800);border:1px solid var(--gold-hair);border-radius:var(--radius-lg);
  padding:var(--space-3);transition:transform 220ms var(--ease-soft),border-color 220ms var(--ease-soft)
}
.tech-card:hover{transform:translateY(-5px);border-color:rgba(201,164,104,0.6)}
.tech-card__diagram{
  width:100%;height:110px;margin-bottom:var(--space-3);
  display:flex;align-items:center;justify-content:center
}
.tech-card__diagram svg{width:100%;height:100%;stroke:var(--gold-400)}
.tech-card h3{font-family:var(--font-display);font-weight:600;font-size:1.15rem;color:var(--cream);margin-bottom:.5rem}
.tech-card p{font-size:.88rem;color:var(--taupe)}

/* ==========================================================================
   GALLERY
   ========================================================================== */
.gallery__grid{
  columns:1;column-gap:var(--space-3)
}
@media (min-width:640px){.gallery__grid{columns:2}}
@media (min-width:1024px){.gallery__grid{columns:3}}
.gallery__item{
  break-inside:avoid;margin-bottom:var(--space-3);border-radius:var(--radius-md);
  overflow:hidden;position:relative
}
.gallery__clip{
  display:block;clip-path:inset(0 100% 0 0);
  transition:clip-path 900ms var(--ease-out)
}
.gallery__item.is-visible .gallery__clip{clip-path:inset(0)}
.gallery__item img{width:100%;height:auto;display:block;transition:transform 400ms var(--ease-soft)}
.gallery__item:hover img{transform:scale(1.04)}
.gallery__cap{
  position:absolute;left:0;right:0;bottom:0;padding:.75rem 1rem;
  background:linear-gradient(0deg,rgba(10,9,8,0.85),transparent);
  font-size:.72rem;letter-spacing:.04em;color:var(--cream);opacity:0;
  transition:opacity var(--dur-micro) var(--ease-soft)
}
.gallery__item:hover .gallery__cap,.gallery__item:focus-within .gallery__cap{opacity:1}

/* ==========================================================================
   REVIEWS
   ========================================================================== */
.reviews__viewport{position:relative}
.reviews__track{
  display:flex;gap:var(--space-3);overflow-x:auto;scroll-snap-type:x mandatory;
  padding-bottom:var(--space-2);scrollbar-width:none;-ms-overflow-style:none
}
.reviews__track::-webkit-scrollbar{display:none}
.review-card{
  scroll-snap-align:center;flex:0 0 min(85%,380px);background:var(--stone-900);
  border:1px solid var(--gold-hair);border-radius:var(--radius-lg);padding:var(--space-4);
  display:flex;flex-direction:column;gap:var(--space-2)
}
.review-card__mark{font-family:var(--font-display);font-size:3.5rem;color:var(--gold-300);opacity:.5;line-height:1}
.review-card p{font-family:var(--font-display);font-size:1.15rem;font-style:italic;color:var(--cream);line-height:1.5}
.review-card cite{font-style:normal;font-family:var(--font-body);font-weight:500;font-size:.8rem;letter-spacing:.06em;color:var(--gold-300)}
.review-card--video{align-items:center;justify-content:center;text-align:center;color:var(--taupe)}
.review-card--video svg{width:44px;height:44px;stroke:var(--gold-400);margin-bottom:var(--space-2)}
.reviews__controls{display:flex;align-items:center;justify-content:center;gap:var(--space-3);margin-top:var(--space-4)}
.reviews__arrow{
  width:44px;height:44px;border-radius:50%;border:1px solid var(--gold-hair);
  display:flex;align-items:center;justify-content:center;transition:border-color var(--dur-micro) var(--ease-soft)
}
.reviews__arrow:hover,.reviews__arrow:focus-visible{border-color:var(--gold-300)}
.reviews__arrow svg{width:18px;height:18px;stroke:var(--cream)}
.reviews__dots{display:flex;gap:.5rem}
.reviews__dot{width:8px;height:8px;border-radius:50%;background:var(--gold-hair);transition:background var(--dur-micro) var(--ease-soft)}
.reviews__dot.is-active{background:var(--gold-300)}

/* ==========================================================================
   FAQ
   ========================================================================== */
.faq__list{max-width:800px;margin-inline:auto;display:flex;flex-direction:column;gap:var(--space-2)}
.faq-item{background:var(--stone-800);border:1px solid var(--gold-hair);border-radius:var(--radius-md)}
.faq-item[open]{border-color:rgba(201,164,104,0.5)}
.faq-item summary{
  list-style:none;cursor:pointer;padding:1.25rem 1.4rem;display:flex;align-items:center;
  justify-content:space-between;gap:var(--space-3);font-family:var(--font-display);font-weight:600;
  font-size:1.15rem;color:var(--cream);min-height:44px
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary .cond-toggle{flex-shrink:0;width:22px;height:22px;position:relative}
.faq-item summary .cond-toggle::before,.faq-item summary .cond-toggle::after{
  content:"";position:absolute;background:var(--gold-300);top:50%;left:50%;
  transform:translate(-50%,-50%);transition:transform var(--dur-micro) var(--ease-soft)
}
.faq-item summary .cond-toggle::before{width:14px;height:1.5px}
.faq-item summary .cond-toggle::after{width:1.5px;height:14px}
.faq-item[open] summary .cond-toggle::after{transform:translate(-50%,-50%) rotate(90deg);opacity:0}
.faq-item__body{padding:0 1.4rem 1.4rem;font-size:.95rem;color:var(--taupe)}

/* ==========================================================================
   FINAL CTA
   ========================================================================== */
.final-cta{position:relative;padding-block:var(--space-7);overflow:hidden;text-align:center}
.final-cta__media{position:absolute;inset:0;z-index:var(--z-base)}
.final-cta__media img{width:100%;height:100%;object-fit:cover}
.final-cta__media::after{content:"";position:absolute;inset:0;background:rgba(10,9,8,0.78)}
.final-cta__content{position:relative;z-index:var(--z-raised);max-width:640px;margin-inline:auto}
.final-cta h2{margin-bottom:var(--space-2)}
.final-cta p{color:var(--cream);opacity:.85;margin-bottom:var(--space-4);max-width:52ch;margin-inline:auto}
.cta__phone{display:block;margin-top:var(--space-3);font-family:var(--font-caps);letter-spacing:.06em;color:var(--taupe);font-size:.95rem}

/* ==========================================================================
   FOOTER
   ========================================================================== */
.footer{border-top:var(--border-hair);padding-block:var(--space-6) var(--space-4);background:var(--stone-850)}
.footer__grid{display:grid;grid-template-columns:1fr;gap:var(--space-5);margin-bottom:var(--space-6)}
@media (min-width:768px){.footer__grid{grid-template-columns:1.3fr 1fr 1fr}}
.footer__brand p{margin-top:var(--space-2);font-family:var(--font-display);font-style:italic;color:var(--taupe);font-size:1.05rem}
.footer__heading{
  font-family:var(--font-caps);font-weight:600;font-size:.75rem;letter-spacing:.16em;
  text-transform:uppercase;color:var(--gold-300);margin-bottom:var(--space-2)
}
.footer__links{display:flex;flex-direction:column;gap:.6rem}
.footer__links a:hover,.footer__links a:focus-visible{color:var(--cream)}
.footer__contact{display:flex;flex-direction:column;gap:.6rem;font-size:.92rem}
.footer__social{display:flex;gap:var(--space-2);margin-top:var(--space-3)}
.footer__social a{
  width:38px;height:38px;border-radius:50%;border:1px solid var(--gold-hair);
  display:flex;align-items:center;justify-content:center;transition:border-color var(--dur-micro) var(--ease-soft)
}
.footer__social a:hover,.footer__social a:focus-visible{border-color:var(--gold-300)}
.footer__social svg{width:16px;height:16px;stroke:var(--cream)}
.footer__ritual{
  text-align:center;padding-block:var(--space-4);border-top:var(--border-hair);border-bottom:var(--border-hair);
  font-family:var(--font-caps);letter-spacing:.14em;font-size:.85rem;color:var(--gold-300);margin-bottom:var(--space-4)
}
.footer__fine{text-align:center;color:var(--taupe-bright);font-size:.8rem;display:flex;flex-direction:column;gap:.4rem}

/* ==========================================================================
   Comment-marked placeholder visual tag (subtle, dev-only, non-intrusive)
   ========================================================================== */
.placeholder-tag{
  display:inline-block;margin-top:.5rem;font-size:.65rem;letter-spacing:.06em;
  color:var(--taupe);opacity:.6;text-transform:uppercase
}

/* ---------- Utility ---------- */
.visually-hidden{
  position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;
  clip:rect(0,0,0,0);white-space:nowrap;border:0
}