/* =====================================================================
   THE NATURAL HAIR LOFT — Animations & Interactive Components
   ===================================================================== */

/* ---------- Keyframes ---------- */
@keyframes lmUp{to{opacity:1;transform:translateY(0)}}
@keyframes fadeIn{to{opacity:1}}
@keyframes lineGrow{to{width:120px}}
@keyframes scrollPulse{0%{transform:scaleY(.2);transform-origin:top;opacity:.3}
  50%{transform:scaleY(1);opacity:1}100%{transform:scaleY(.2);transform-origin:bottom;opacity:.3}}
@keyframes floatY{0%,100%{transform:translateY(0)}50%{transform:translateY(-10px)}}
@keyframes shimmer{0%{background-position:-200% 0}100%{background-position:200% 0}}

/* ---------- Scroll reveal (Intersection Observer) ---------- */
.reveal{opacity:0;transform:translateY(36px);transition:opacity 1s var(--ease),transform 1s var(--ease)}
.reveal.in{opacity:1;transform:none}
.reveal-left{opacity:0;transform:translateX(-44px);transition:opacity 1s var(--ease),transform 1s var(--ease)}
.reveal-left.in{opacity:1;transform:none}
.reveal-right{opacity:0;transform:translateX(44px);transition:opacity 1s var(--ease),transform 1s var(--ease)}
.reveal-right.in{opacity:1;transform:none}
.reveal-scale{opacity:0;transform:scale(.94);transition:opacity 1s var(--ease),transform 1.1s var(--ease)}
.reveal-scale.in{opacity:1;transform:none}

/* stagger via inline --d or nth-child */
.stagger>*{opacity:0;transform:translateY(34px);transition:opacity .9s var(--ease),transform .9s var(--ease)}
.stagger.in>*{opacity:1;transform:none}
.stagger.in>*:nth-child(1){transition-delay:.05s}
.stagger.in>*:nth-child(2){transition-delay:.18s}
.stagger.in>*:nth-child(3){transition-delay:.31s}
.stagger.in>*:nth-child(4){transition-delay:.44s}
.stagger.in>*:nth-child(5){transition-delay:.57s}
.stagger.in>*:nth-child(6){transition-delay:.70s}

/* hero entrance */
.hero .anim{opacity:0;transform:translateY(40px);animation:lmUp 1s var(--ease) forwards}
.hero .anim.d1{animation-delay:.2s}
.hero .anim.d2{animation-delay:.45s}
.hero .anim.d3{animation-delay:.7s}
.hero .anim.d4{animation-delay:.95s}

/* gentle hover lift utility */
.lift{transition:transform .5s var(--ease),box-shadow .5s var(--ease)}
.lift:hover{transform:translateY(-6px)}

@media(prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  .reveal,.reveal-left,.reveal-right,.reveal-scale,.stagger>*{opacity:1!important;transform:none!important}
  .hero .anim{opacity:1!important;transform:none!important}
}

/* =====================================================================
   GALLERY — masonry + filter + lightbox
   ===================================================================== */
.gallery-filters{display:flex;flex-wrap:wrap;gap:.6rem;justify-content:center;margin-bottom:2.8rem}
.gallery-filters button{
  font-size:.68rem;letter-spacing:.2em;text-transform:uppercase;font-weight:600;
  padding:.7em 1.4em;border:1px solid var(--line);border-radius:40px;color:var(--espresso-soft);
  background:#fff;transition:.4s var(--ease);
}
.gallery-filters button:hover{border-color:var(--gold)}
.gallery-filters button.active{background:var(--espresso);color:var(--gold-light);border-color:var(--espresso)}

.masonry{columns:3;column-gap:1rem}
.masonry .g-item{break-inside:avoid;margin-bottom:1rem;position:relative;overflow:hidden;border-radius:3px;
  cursor:pointer;box-shadow:var(--shadow-soft);transition:opacity .5s,transform .5s var(--ease)}
.masonry .g-item img{width:100%;display:block;transition:transform 1s var(--ease)}
.masonry .g-item::after{content:"";position:absolute;inset:0;border:1px solid transparent;border-radius:3px;
  transition:border-color .4s;pointer-events:none}
.masonry .g-item:hover img{transform:scale(1.06)}
.masonry .g-item:hover::after{border-color:var(--gold)}
.g-cap{position:absolute;left:0;right:0;bottom:0;padding:1.2rem 1rem .9rem;
  background:linear-gradient(transparent,rgba(28,16,8,.82));color:#fff;transform:translateY(12px);transition:.45s var(--ease)}
.masonry .g-item:hover .g-cap{opacity:1;transform:none}
.g-cap b{font-family:var(--ff-display);font-size:1.2rem;display:block}
.g-cap span{font-size:.62rem;letter-spacing:.2em;text-transform:uppercase;color:var(--gold-light)}
.g-item.hide{display:none}

/* lightbox */
.lightbox{position:fixed;inset:0;z-index:1500;background:rgba(20,11,5,.94);
  display:flex;align-items:center;justify-content:center;flex-direction:column;
  opacity:0;visibility:hidden;transition:.45s var(--ease);padding:2rem}
.lightbox.open{opacity:1;visibility:visible}
.lightbox img{max-width:min(86vw,720px);max-height:78vh;border-radius:3px;box-shadow:0 30px 80px rgba(0,0,0,.6)}
.lb-cap{color:var(--ivory);margin-top:1.2rem;text-align:center}
.lb-cap b{font-family:var(--ff-display);font-size:1.4rem;color:var(--gold-light)}
.lb-cap span{display:block;font-size:.66rem;letter-spacing:.24em;text-transform:uppercase;color:rgba(250,246,240,.6);margin-top:.4rem}
.lb-close{position:absolute;top:1.4rem;right:1.6rem;color:#fff;font-size:1.8rem;width:48px;height:48px;
  border:1px solid rgba(255,255,255,.3);border-radius:50%;display:grid;place-items:center;transition:.3s}
.lb-close:hover{background:var(--gold);color:var(--espresso);border-color:var(--gold)}
.lb-nav{position:absolute;top:50%;transform:translateY(-50%);color:#fff;font-size:2rem;
  width:54px;height:54px;border:1px solid rgba(255,255,255,.25);border-radius:50%;display:grid;place-items:center;transition:.3s}
.lb-nav:hover{background:var(--gold);color:var(--espresso);border-color:var(--gold)}
.lb-prev{left:1.4rem}.lb-next{right:1.4rem}

/* =====================================================================
   ACCORDION (FAQ)
   ===================================================================== */
.accordion{max-width:820px;margin-inline:auto}
.acc-cat{font-family:var(--ff-body);font-size:.72rem;letter-spacing:.28em;text-transform:uppercase;
  color:var(--gold-deep);font-weight:600;margin:2.4rem 0 1rem}
.acc-item{border-bottom:1px solid var(--line)}
.acc-q{width:100%;text-align:left;display:flex;justify-content:space-between;align-items:center;gap:1rem;
  padding:1.5rem 0;font-family:var(--ff-sub);font-size:1.18rem;color:var(--espresso);transition:color .3s}
.acc-q:hover{color:var(--gold-deep)}
.acc-q .pm{flex:none;width:26px;height:26px;border:1px solid var(--gold);border-radius:50%;
  position:relative;transition:.4s var(--ease)}
.acc-q .pm::before,.acc-q .pm::after{content:"";position:absolute;background:var(--gold-deep);transition:.4s var(--ease)}
.acc-q .pm::before{width:12px;height:1.5px;top:50%;left:50%;transform:translate(-50%,-50%)}
.acc-q .pm::after{width:1.5px;height:12px;top:50%;left:50%;transform:translate(-50%,-50%)}
.acc-item.open .acc-q .pm{background:var(--gold);transform:rotate(90deg)}
.acc-item.open .acc-q .pm::before,.acc-item.open .acc-q .pm::after{background:#fff}
.acc-item.open .acc-q .pm::after{transform:translate(-50%,-50%) scaleY(0)}
.acc-a{max-height:0;overflow:hidden;transition:max-height .55s var(--ease)}
.acc-a p{padding:0 0 1.5rem;color:var(--espresso-soft);font-size:.98rem;max-width:none}

/* =====================================================================
   PROCESS STEPS
   ===================================================================== */
.process{display:grid;grid-template-columns:repeat(5,1fr);gap:1rem;counter-reset:step}
.step{text-align:center;position:relative;padding-top:1rem}
.step .dot{width:58px;height:58px;border:1px solid var(--gold);border-radius:50%;margin:0 auto 1.2rem;
  display:grid;place-items:center;font-family:var(--ff-display);font-size:1.5rem;color:var(--gold-deep);
  background:#fff;position:relative;z-index:2;transition:.4s var(--ease)}
.step:hover .dot{background:var(--gold);color:#fff}
.process::before{content:"";position:absolute;top:calc(1rem + 29px);left:10%;right:10%;height:1px;
  background:var(--line);z-index:0}
.step h4{font-size:1.2rem;margin-bottom:.4rem}
.step p{font-size:.86rem;color:var(--espresso-soft);margin-inline:auto}

/* =====================================================================
   COMPARISON TABLE
   ===================================================================== */
.compare{width:100%;border-collapse:collapse;background:#fff;box-shadow:var(--shadow-soft);overflow:hidden;border-radius:3px}
.compare th,.compare td{padding:1.1rem 1.2rem;text-align:left;border-bottom:1px solid var(--line);font-size:.92rem}
.compare thead th{background:var(--espresso);color:var(--ivory);font-family:var(--ff-body);
  font-size:.68rem;letter-spacing:.18em;text-transform:uppercase;font-weight:600}
.compare thead th:first-child{background:var(--espresso-soft)}
.compare tbody th{font-family:var(--ff-sub);font-weight:500;color:var(--espresso);font-size:1rem}
.compare .hot{background:rgba(201,169,110,.1)}
.compare .yes{color:var(--sage);font-weight:700}
.compare .mid{color:var(--gold-deep)}
.compare .no{color:#b08; color:#C08552;opacity:.7}
.compare tr:last-child td,.compare tr:last-child th{border-bottom:none}

/* =====================================================================
   FORMS (booking / contact / consultation)
   ===================================================================== */
.form-card{background:#fff;border:1px solid var(--line);box-shadow:var(--shadow-card);
  padding:clamp(1.8rem,4vw,3.2rem);border-radius:4px}
.field{margin-bottom:1.4rem}
.field label{display:block;font-size:.68rem;letter-spacing:.18em;text-transform:uppercase;
  color:var(--gold-deep);font-weight:600;margin-bottom:.6rem}
.field input,.field select,.field textarea{
  width:100%;padding:.95em 1.1em;border:1px solid var(--line);border-radius:2px;
  font-family:var(--ff-body);font-size:.98rem;color:var(--espresso);background:var(--ivory);
  transition:border-color .35s,box-shadow .35s}
.field textarea{resize:vertical;min-height:120px}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--gold);
  box-shadow:0 0 0 3px rgba(201,169,110,.16);background:#fff}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:1.2rem}
.service-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:.7rem;margin-bottom:1.6rem}
.service-grid label{display:block;cursor:pointer}
.service-grid input{position:absolute;opacity:0;pointer-events:none}
.service-grid .chip{display:block;text-align:center;padding:1em .6em;border:1px solid var(--line);border-radius:3px;
  font-size:.78rem;letter-spacing:.06em;background:var(--ivory);transition:.35s var(--ease);color:var(--espresso-soft)}
.service-grid label:hover .chip{border-color:var(--gold)}
.service-grid input:checked+.chip{background:var(--espresso);color:var(--gold-light);border-color:var(--espresso)}
.form-note{font-size:.82rem;color:var(--espresso-soft);background:rgba(157,175,136,.12);
  border-left:2px solid var(--sage);padding:1rem 1.2rem;border-radius:0 3px 3px 0;margin:1.6rem 0}
.form-success{display:none;text-align:center;padding:2rem 0}
.form-success.show{display:block}
.form-success .ico{width:64px;height:64px;border:1px solid var(--gold);border-radius:50%;
  display:grid;place-items:center;margin:0 auto 1.4rem;color:var(--gold-deep);animation:floatY 3s ease-in-out infinite}
.field.err input,.field.err select,.field.err textarea{border-color:#C0654E;box-shadow:0 0 0 3px rgba(192,101,78,.12)}
.err-msg{display:none;color:#C0654E;font-size:.74rem;margin-top:.4rem;letter-spacing:.02em}
.field.err .err-msg{display:block}

@media(max-width:768px){
  .masonry{columns:2}
  .process{grid-template-columns:1fr 1fr;gap:2rem}
  .process::before{display:none}
  .field-row,.service-grid{grid-template-columns:1fr}
  .compare{display:block;overflow-x:auto;white-space:nowrap}
}
@media(max-width:420px){
  .masonry{columns:1}
}