/* =========================================================
   Acoperișuri Perfecte — stylesheet
   Design language: "Furtună & Cupru" (Storm & Copper)
   Charcoal/slate structure, oxidised-copper accent, stone paper
   ========================================================= */

:root{
  /* --- color tokens --- */
  --ink:        #14171b;   /* deep charcoal — structure, dark sections */
  --ink-soft:   #232a31;   /* card / panel on dark */
  --ink-line:   #343d46;   /* hairlines on dark */
  --stone:      #eef0ec;   /* light section background */
  --stone-2:    #e3e6df;   /* subtle contrast on light */
  --paper:      #faf9f6;   /* card background on light */
  --rust:       #b5502d;   /* oxidised copper — primary accent */
  --rust-dark:  #8f3f22;   /* hover / pressed */
  --rust-tint:  #f1e2da;   /* faint accent wash */
  --slate:      #3f5a66;   /* roof-slate blue — secondary accent */
  --brass:      #c99a45;   /* rating stars / highlight */
  --success:    #3f7d58;
  --text-dark:  #1b1e21;
  --text-mute:  #565f66;
  --text-on-dark: #e7e6e2;
  --text-on-dark-mute: #a7aeb3;

  /* --- type --- */
  --font-display: "Zilla Slab", Georgia, serif;
  --font-body: "Inter", -apple-system, BlinkMacSystemFont, sans-serif;
  --font-data: "Space Grotesk", var(--font-body);

  /* --- layout --- */
  --container: 1180px;
  --radius-sm: 6px;
  --radius-md: 14px;
  --shadow-soft: 0 12px 32px -16px rgba(20,23,27,0.35);
  --shadow-lift: 0 20px 48px -18px rgba(20,23,27,0.45);
  --ease: cubic-bezier(.22,.68,.32,1);
}

/* =============== reset =============== */
*,*::before,*::after{ box-sizing: border-box; }
html{ scroll-behavior: smooth; }
body{
  margin:0;
  font-family: var(--font-body);
  color: var(--text-dark);
  background: var(--stone);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img{ max-width:100%; display:block; }
a{ color: inherit; text-decoration:none; }
ul{ list-style:none; margin:0; padding:0; }
button{ font-family: inherit; cursor:pointer; }
input, textarea{ font-family: inherit; }
h1,h2,h3,h4{ font-family: var(--font-display); margin:0; line-height:1.12; font-weight:600; }
p{ margin:0; }

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

:focus-visible{
  outline: 3px solid var(--rust);
  outline-offset: 3px;
  border-radius: 4px;
}

.container{
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-family: var(--font-data);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--rust);
}
.eyebrow::before{
  content:"";
  width: 26px; height: 2px;
  background: var(--rust);
  display:inline-block;
}
.on-dark .eyebrow{ color:#e2a583; }
.on-dark .eyebrow::before{ background:#e2a583; }

.section-head{
  max-width: 640px;
  margin-bottom: 48px;
}
.section-head h2{
  font-size: clamp(28px, 4vw, 42px);
  margin-top: 14px;
  color: var(--text-dark);
}
.on-dark .section-head h2{ color: var(--text-on-dark); }
.section-head p{
  margin-top: 14px;
  font-size: 17px;
  line-height:1.6;
  color: var(--text-mute);
}
.on-dark .section-head p{ color: var(--text-on-dark-mute); }
.section-head.center{ margin-left:auto; margin-right:auto; text-align:center; }

section{ position: relative; }

/* =============== buttons =============== */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:10px;
  padding: 15px 26px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 15px;
  border: 1.5px solid transparent;
  transition: transform .2s var(--ease), background .2s var(--ease), border-color .2s var(--ease), color .2s var(--ease), box-shadow .2s var(--ease);
  white-space: nowrap;
}
.btn svg{ flex-shrink:0; }
.btn-primary{
  background: var(--rust);
  color: #fff8f5;
  box-shadow: 0 10px 24px -10px rgba(181,80,45,.6);
}
.btn-primary:hover{ background: var(--rust-dark); transform: translateY(-2px); }
.btn-outline{
  background: transparent;
  border-color: rgba(20,23,27,.22);
  color: var(--text-dark);
}
.btn-outline:hover{ border-color: var(--ink); transform: translateY(-2px); }
.btn-outline.on-dark{
  border-color: rgba(231,230,226,.35);
  color: var(--text-on-dark);
}
.btn-outline.on-dark:hover{ border-color:#fff; background: rgba(255,255,255,.06); }
.btn-block{ width:100%; }
.btn-sm{ padding: 10px 18px; font-size: 14px; }

/* =============== header =============== */
.site-header{
  position: fixed;
  top:0; left:0; right:0;
  z-index: 850;
  padding: 18px 0;
  transition: background .3s var(--ease), padding .3s var(--ease), box-shadow .3s var(--ease);
}
.site-header .container{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap: 20px;
}
.site-header.is-scrolled{
  background: rgba(20,23,27,.92);
  backdrop-filter: blur(10px);
  padding: 12px 0;
  box-shadow: 0 8px 24px -16px rgba(0,0,0,.5);
}
.site-header.menu-open{
  background: var(--ink) !important;
  backdrop-filter: none !important;
  box-shadow: none !important;
}
.brand{
  display:flex;
  align-items:center;
  gap:10px;
  font-family: var(--font-display);
  font-size: 21px;
  font-weight: 700;
  color: var(--text-on-dark);
  letter-spacing: -.01em;
}
.brand .roof-mark{ color: var(--rust); }
.brand span{ color: #e2a583; }

.nav-links{
  display:flex;
  align-items:center;
  gap: 30px;
}
.nav-links a{
  font-size: 14.5px;
  font-weight: 500;
  color: var(--text-on-dark-mute);
  transition: color .2s;
  position:relative;
}
.nav-links a:hover{ color: var(--text-on-dark); }

.header-cta{
  display:flex;
  align-items:center;
  gap:14px;
}
.header-phone{
  display:flex;
  align-items:center;
  gap:8px;
  font-family: var(--font-data);
  font-weight: 600;
  font-size: 15px;
  color: var(--text-on-dark);
}
.header-phone svg{ color: var(--rust); }

.nav-toggle{
  display:none;
  background:none;
  border:none;
  width: 40px; height: 40px;
  position: relative;
  z-index: 600;
}
.nav-toggle span{
  position:absolute; left:8px; right:8px;
  height:2px; background: var(--text-on-dark);
  transition: transform .25s var(--ease), opacity .25s var(--ease), top .25s var(--ease);
}
.nav-toggle span:nth-child(1){ top: 13px; }
.nav-toggle span:nth-child(2){ top: 20px; }
.nav-toggle span:nth-child(3){ top: 27px; }
.nav-toggle.is-open span:nth-child(1){ top:20px; transform: rotate(45deg); }
.nav-toggle.is-open span:nth-child(2){ opacity:0; }
.nav-toggle.is-open span:nth-child(3){ top:20px; transform: rotate(-45deg); }

/* =============== hero =============== */
.hero{
  background: radial-gradient(ellipse at 80% -10%, #262d33 0%, var(--ink) 55%);
  color: var(--text-on-dark);
  padding: 168px 0 0;
  position: relative;
  overflow: hidden;
}
.hero .container{
  display:grid;
  grid-template-columns: 1.05fr .95fr;
  gap: 40px;
  align-items: center;
  position: relative;
  z-index:2;
}
.hero-copy h1{
  font-size: clamp(36px, 5.6vw, 58px);
  margin-top:18px;
  color: var(--text-on-dark);
  max-width: 15ch;
}
.hero-copy h1 em{
  font-style: normal;
  color: var(--rust);
}
.hero-copy .lede{
  margin-top: 22px;
  font-size: 18px;
  line-height:1.65;
  color: var(--text-on-dark-mute);
  max-width: 46ch;
}
.hero-actions{
  display:flex;
  flex-wrap:wrap;
  gap:16px;
  margin-top: 34px;
}
.hero-badges{
  display:flex;
  align-items:center;
  gap: 10px;
  margin-top: 22px;
  color: var(--text-on-dark-mute);
  font-size: 13.5px;
}
.hero-badges svg{ color: var(--success); }

.hero-visual{
  position: relative;
  height: 420px;
  display:flex;
  align-items:flex-end;
  justify-content:center;
}
.hero-visual svg{ width: 100%; height: auto; max-width: 480px; }
.hero-visual .glow{
  position:absolute;
  inset: -20% -10% auto -10%;
  height: 300px;
  background: radial-gradient(circle, rgba(181,80,45,.35), transparent 70%);
  filter: blur(10px);
  z-index:0;
}
.roof-anim-line{
  stroke-dasharray: 900;
  stroke-dashoffset: 900;
  animation: draw 2.2s var(--ease) forwards .3s;
}
@keyframes draw{ to{ stroke-dashoffset:0; } }
.roof-anim-window{ opacity:0; animation: fadein .8s var(--ease) forwards 1.8s; }
@keyframes fadein{ to{ opacity:1; } }

/* stat bar */
.stats-bar{
  margin-top: 64px;
  border-top: 1px solid var(--ink-line);
  padding: 30px 0;
  position: relative;
  z-index: 2;
}
.stats-bar .container{
  display:grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.stat{ text-align:left; }
.stat .num{
  font-family: var(--font-data);
  font-size: clamp(26px, 3.4vw, 36px);
  font-weight: 700;
  color: var(--text-on-dark);
  display:flex;
  align-items:baseline;
  gap:2px;
}
.stat .num .suffix{ color: var(--rust); font-size: .7em; }
.stat .label{
  margin-top: 4px;
  font-size: 13.5px;
  color: var(--text-on-dark-mute);
}

/* roof divider between sections */
.roof-divider{
  display:block;
  width:100%;
  line-height:0;
  position: relative;
  z-index: 3;
}
.roof-divider svg{ width:100%; height: 56px; display:block; }
.roof-divider.flip{ transform: scaleY(-1); }

/* =============== reveal-on-scroll =============== */
.reveal{
  opacity:0;
  transform: translateY(28px);
  transition: opacity .7s var(--ease), transform .7s var(--ease);
}
.reveal.is-visible{ opacity:1; transform: translateY(0); }
.stagger > *{ transition-delay: calc(var(--i, 0) * 80ms); }

/* =============== services =============== */
.services{
  background: var(--stone);
  padding: 30px 0 100px;
}
.services-grid{
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.service-card{
  background: var(--paper);
  border-radius: var(--radius-md);
  padding: 32px 28px;
  position: relative;
  clip-path: polygon(0 0, calc(100% - 26px) 0, 100% 26px, 100% 100%, 0 100%);
  border: 1px solid rgba(20,23,27,.06);
  transition: transform .3s var(--ease), box-shadow .3s var(--ease);
}
.service-card::after{
  content:"";
  position:absolute; top:0; right:0;
  width:26px; height:26px;
  background: var(--rust);
  clip-path: polygon(100% 0, 0 0, 100% 100%);
}
.service-card:hover{ transform: translateY(-6px); box-shadow: var(--shadow-soft); }
.service-icon{
  width: 52px; height:52px;
  border-radius: 12px;
  background: var(--rust-tint);
  color: var(--rust);
  display:flex; align-items:center; justify-content:center;
  margin-bottom: 20px;
}
.service-card h3{
  font-size: 20px;
  color: var(--text-dark);
}
.service-card p{
  margin-top: 12px;
  font-size: 15px;
  line-height:1.6;
  color: var(--text-mute);
}

/* =============== zone deservite =============== */
.zone{
  background: var(--ink);
  color: var(--text-on-dark);
  padding: 90px 0;
}
.zone-inner{
  display:grid;
  grid-template-columns: .9fr 1.1fr;
  gap: 50px;
  align-items:center;
}
.zone-chips{
  display:flex;
  flex-wrap:wrap;
  gap: 10px;
}
.zone-chips li{
  padding: 10px 18px;
  border: 1px solid var(--ink-line);
  border-radius: 999px;
  font-size: 14px;
  color: var(--text-on-dark-mute);
  transition: border-color .2s, color .2s;
}
.zone-chips li.is-main{
  border-color: var(--rust);
  color: #f0c3ac;
  font-weight:600;
}
.zone-note{
  margin-top: 26px;
  font-size: 15px;
  color: var(--text-on-dark-mute);
  line-height: 1.6;
  border-left: 2px solid var(--rust);
  padding-left: 18px;
}

/* =============== gallery =============== */
.gallery{ padding: 100px 0; background: var(--stone); }
.gallery-filters{
  display:flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 34px;
}
.filter-btn{
  background: var(--paper);
  border: 1px solid rgba(20,23,27,.1);
  padding: 10px 20px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 600;
  color: var(--text-mute);
  transition: all .2s var(--ease);
}
.filter-btn:hover{ border-color: var(--rust); color: var(--rust); }
.filter-btn.is-active{ background: var(--ink); color: var(--text-on-dark); border-color: var(--ink); }

.gallery-grid{
  display:grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}
.gallery-item{
  position: relative;
  border-radius: var(--radius-md);
  overflow: hidden;
  aspect-ratio: 3/4;
  cursor: zoom-in;
  background: var(--ink-soft);
  box-shadow: 0 4px 20px -8px rgba(20,23,27,.25);
  transition: box-shadow .3s var(--ease), transform .3s var(--ease);
}
/* First item spans 2 columns for visual variety */
.gallery-item:nth-child(1){
  grid-column: span 2;
  aspect-ratio: 16/9;
}
.gallery-item img{
  width:100%; height:100%; object-fit:cover;
  transition: transform .6s var(--ease);
}
.gallery-item:hover{ box-shadow: 0 12px 40px -10px rgba(20,23,27,.45); transform: translateY(-3px); }
.gallery-item:hover img{ transform: scale(1.07); }
.gallery-item .tag{
  position:absolute; left:14px; bottom:14px;
  background: rgba(20,23,27,.72);
  color:#fff;
  font-size: 12.5px;
  font-weight:600;
  padding: 6px 14px;
  border-radius: 999px;
  backdrop-filter: blur(6px);
  border: 1px solid rgba(255,255,255,.12);
  transition: background .2s;
}
.gallery-item:hover .tag{ background: rgba(181,80,45,.85); }
.gallery-item.is-hidden{ display:none; }

/* lightbox */
.lightbox{
  position: fixed; inset:0;
  background: rgba(10,12,14,.92);
  display:flex; align-items:center; justify-content:center;
  z-index: 900;
  opacity:0; visibility:hidden;
  transition: opacity .25s var(--ease);
  padding: 40px;
}
.lightbox.is-open{ opacity:1; visibility:visible; }
.lightbox img{
  max-width: 900px; width:100%; max-height: 80vh; object-fit:contain;
  border-radius: 10px;
  box-shadow: 0 30px 80px rgba(0,0,0,.5);
}
.lightbox-close, .lightbox-prev, .lightbox-next{
  position:absolute;
  background: rgba(255,255,255,.08);
  border: 1px solid rgba(255,255,255,.18);
  color:#fff;
  width: 46px; height:46px;
  border-radius:50%;
  display:flex; align-items:center; justify-content:center;
  transition: background .2s;
}
.lightbox-close:hover, .lightbox-prev:hover, .lightbox-next:hover{ background: rgba(255,255,255,.2); }
.lightbox-close{ top: 24px; right: 24px; }
.lightbox-prev{ left: 24px; top:50%; transform: translateY(-50%); }
.lightbox-next{ right: 24px; top:50%; transform: translateY(-50%); }
.lightbox-caption{
  position:absolute; bottom: 30px; left:0; right:0;
  text-align:center;
  color: var(--text-on-dark-mute);
  font-size: 14px;
}

/* =============== process =============== */
.process{ padding: 100px 0; background: var(--paper); }
.process-grid{
  display:grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 26px;
  counter-reset: step;
}
.process-step{
  position: relative;
  padding-top: 20px;
  border-top: 2px solid rgba(20,23,27,.1);
}
.process-step .step-num{
  font-family: var(--font-data);
  font-size: 15px;
  font-weight:700;
  color: var(--rust);
  letter-spacing: .05em;
}
.process-step h3{
  font-size: 18px;
  margin-top: 14px;
}
.process-step p{
  margin-top: 10px;
  font-size: 14.5px;
  line-height:1.6;
  color: var(--text-mute);
}

/* =============== testimonials =============== */
.testimonials{ padding: 100px 0; background: var(--stone); }
.t-head-row{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap: 24px;
  flex-wrap: wrap;
}
.t-controls{ display:flex; gap:10px; margin-bottom: 48px; }
.t-controls button{
  width: 44px; height:44px;
  border-radius:50%;
  border: 1px solid rgba(20,23,27,.15);
  background: var(--paper);
  display:flex; align-items:center; justify-content:center;
  transition: background .2s, border-color .2s;
}
.t-controls button:hover{ border-color: var(--rust); color: var(--rust); }

.t-track{
  display:flex;
  gap: 22px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  padding-bottom: 8px;
  scrollbar-width: none;
}
.t-track::-webkit-scrollbar{ display:none; }
.t-card{
  flex: 0 0 min(360px, 88vw);
  scroll-snap-align: start;
  background: var(--paper);
  border-radius: var(--radius-md);
  padding: 30px;
  border: 1px solid rgba(20,23,27,.06);
}
.t-stars{ color: var(--brass); font-size: 15px; letter-spacing: 2px; }
.t-quote{
  margin-top: 16px;
  font-size: 15.5px;
  line-height: 1.7;
  color: var(--text-dark);
}
.t-person{
  margin-top: 22px;
  display:flex;
  align-items:center;
  gap: 12px;
}
.t-avatar{
  width: 44px; height:44px;
  border-radius:50%;
  background: var(--ink);
  color: #fff;
  font-family: var(--font-display);
  font-weight:700;
  display:flex; align-items:center; justify-content:center;
  flex-shrink:0;
}
.t-person .name{ font-weight:600; font-size:14.5px; }
.t-person .date{ font-size: 13px; color: var(--text-mute); }

/* =============== FAQ =============== */
.faq{ padding: 100px 0; background: var(--paper); }
.faq-list{ max-width: 780px; }
.faq-item{
  border-bottom: 1px solid rgba(20,23,27,.12);
}
.faq-q{
  width:100%;
  background:none;
  border:none;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap: 20px;
  padding: 22px 4px;
  text-align:left;
  font-family: var(--font-display);
  font-size: 18px;
  font-weight:600;
  color: var(--text-dark);
}
.faq-q .plus{
  flex-shrink:0;
  width: 28px; height:28px;
  border-radius:50%;
  border: 1.5px solid var(--rust);
  color: var(--rust);
  display:flex; align-items:center; justify-content:center;
  position: relative;
  transition: transform .3s var(--ease);
}
.faq-item.is-open .faq-q .plus{ transform: rotate(45deg); }
.faq-a{
  max-height:0;
  overflow:hidden;
  transition: max-height .35s var(--ease);
}
.faq-a p{
  padding: 0 4px 22px;
  font-size: 15px;
  line-height:1.65;
  color: var(--text-mute);
  max-width: 65ch;
}

/* =============== contact =============== */
.contact{ padding: 100px 0; background: var(--ink); color: var(--text-on-dark); }
.contact-grid{
  display:grid;
  grid-template-columns: .95fr 1.05fr;
  gap: 50px;
  align-items:flex-start;
}
.contact-cards-only{
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
  margin-bottom: 24px;
}
.contact-cards{ display:grid; gap:14px; }
.contact-card{
  display:flex;
  align-items:flex-start;
  gap: 16px;
  padding: 20px;
  background: var(--ink-soft);
  border-radius: var(--radius-md);
  border: 1px solid var(--ink-line);
  transition: border-color .2s, transform .2s;
}
.contact-card:hover{ border-color: var(--rust); transform: translateX(4px); }
.contact-card .ic{
  width: 42px; height:42px;
  border-radius:10px;
  background: rgba(181,80,45,.16);
  color: var(--rust);
  display:flex; align-items:center; justify-content:center;
  flex-shrink:0;
}
.contact-card .t{ font-size: 13px; color: var(--text-on-dark-mute); }
.contact-card .v{ font-weight:600; margin-top:2px; font-size:15px; }

.map-embed{
  margin-top: 16px;
  border-radius: var(--radius-md);
  overflow:hidden;
  border: 1px solid var(--ink-line);
  filter: grayscale(.3) contrast(1.05);
}
.map-embed iframe{ width:100%; height: 320px; border:0; display:block; }

.contact-form{
  background: var(--ink-soft);
  border: 1px solid var(--ink-line);
  border-radius: var(--radius-md);
  padding: 34px;
}
.form-row{ margin-bottom: 18px; }
.form-row label{
  display:block;
  font-size: 13px;
  color: var(--text-on-dark-mute);
  margin-bottom: 8px;
}
.form-row input, .form-row textarea{
  width:100%;
  background: var(--ink);
  border: 1px solid var(--ink-line);
  border-radius: var(--radius-sm);
  padding: 13px 16px;
  color: var(--text-on-dark);
  font-size: 15px;
  transition: border-color .2s;
}
.form-row input:focus, .form-row textarea:focus{ border-color: var(--rust); outline:none; }
.form-row textarea{ resize: vertical; min-height: 110px; }
.form-note{
  margin-top: 14px;
  font-size: 12.5px;
  color: var(--text-on-dark-mute);
  text-align:center;
}
.form-status{
  margin-top: 12px;
  font-size: 14px;
  min-height: 20px;
}
.form-status.ok{ color: #7fd39c; }
.form-status.err{ color: #e08a7d; }

/* =============== footer =============== */
.site-footer{
  background: #101317;
  color: var(--text-on-dark-mute);
  padding: 64px 0 26px;
}
.footer-grid{
  display:grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 40px;
}
.footer-brand p{
  margin-top: 16px;
  font-size: 14.5px;
  line-height:1.7;
  max-width: 34ch;
}
.footer-socials{ display:flex; gap:10px; margin-top:22px; }
.footer-socials a{
  width: 38px; height:38px;
  border-radius:50%;
  border: 1px solid var(--ink-line);
  display:flex; align-items:center; justify-content:center;
  transition: border-color .2s, color .2s;
}
.footer-socials a:hover{ border-color: var(--rust); color: var(--rust); }
.footer-col h4{
  font-family: var(--font-body);
  font-size: 13px;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--text-on-dark);
  margin-bottom: 18px;
}
.footer-col ul{ display:grid; gap: 11px; }
.footer-col a{ font-size: 14.5px; transition: color .2s; }
.footer-col a:hover{ color: var(--text-on-dark); }
.footer-bottom{
  margin-top: 54px;
  padding-top: 24px;
  border-top: 1px solid var(--ink-line);
  display:flex;
  justify-content:space-between;
  flex-wrap:wrap;
  gap: 12px;
  font-size: 13px;
}

/* =============== floating whatsapp widget =============== */
.wa-float{
  position: fixed;
  right: 24px;
  bottom: 96px;
  z-index: 700;
  display:flex;
  flex-direction:column;
  align-items:flex-end;
  gap: 14px;
}
.wa-bubble{
  background: #fff;
  border-radius: 16px 16px 4px 16px;
  padding: 16px 18px;
  max-width: 270px;
  box-shadow: var(--shadow-lift);
  position: relative;
  transform: translateY(12px) scale(.96);
  opacity:0;
  visibility:hidden;
  transition: all .3s var(--ease);
}
.wa-bubble.is-visible{ transform: translateY(0) scale(1); opacity:1; visibility:visible; }
.wa-bubble .wa-close{
  position:absolute; top:8px; right:8px;
  width:22px; height:22px;
  border-radius:50%;
  background: var(--stone-2);
  border:none;
  display:flex; align-items:center; justify-content:center;
  color: var(--text-mute);
  font-size:14px;
  line-height:1;
}
.wa-bubble p{ font-size: 13.5px; line-height:1.5; color: var(--text-dark); padding-right: 14px; }
.wa-bubble a{
  display:inline-flex;
  margin-top: 10px;
  font-size: 13px;
  font-weight:700;
  color: var(--success);
}
.wa-btn{
  width: 62px; height:62px;
  border-radius:50%;
  background: var(--success);
  color:#fff;
  display:flex; align-items:center; justify-content:center;
  box-shadow: var(--shadow-lift);
  position: relative;
  border: none;
}
.wa-btn::before{
  content:"";
  position:absolute; inset:0;
  border-radius:50%;
  background: var(--success);
  animation: pulse-ring 2.4s ease-out infinite;
}
@keyframes pulse-ring{
  0%{ transform: scale(1); opacity:.55; }
  100%{ transform: scale(1.9); opacity:0; }
}
.wa-btn svg{ position:relative; z-index:2; }

/* sticky mobile CTA */
.mobile-cta{
  display:none;
  position: fixed;
  left:0; right:0; bottom:0;
  z-index: 650;
  background: var(--ink);
  border-top: 1px solid var(--ink-line);
  padding: 10px 14px;
  gap: 10px;
}
.mobile-cta a{ flex:1; }

/* back to top */
.to-top{
  position: fixed;
  right: 24px;
  bottom: 24px;
  width: 44px; height:44px;
  border-radius:50%;
  background: var(--ink);
  color: var(--text-on-dark);
  border: 1px solid var(--ink-line);
  display:flex; align-items:center; justify-content:center;
  opacity:0; visibility:hidden;
  transform: translateY(10px);
  transition: all .3s var(--ease);
  z-index: 600;
}
.to-top.is-visible{ opacity:1; visibility:visible; transform:translateY(0); }

/* =============== responsive =============== */
@media (max-width: 980px){
  .hero .container{ grid-template-columns: 1fr; }
  .hero-visual{ order:-1; height: 260px; }
  .stats-bar .container{ grid-template-columns: repeat(2,1fr); row-gap: 24px; }
  .services-grid{ grid-template-columns: repeat(2,1fr); }
  .zone-inner{ grid-template-columns:1fr; }
  .gallery-grid{ grid-template-columns: repeat(2,1fr); }
  .gallery-item{ aspect-ratio: 4/5; }
  .gallery-item:nth-child(1){ grid-column: span 2; aspect-ratio: 16/9; }
  .process-grid{ grid-template-columns: repeat(2,1fr); row-gap: 34px; }
  .contact-grid{ grid-template-columns:1fr; }
  .footer-grid{ grid-template-columns: 1fr 1fr; row-gap: 34px; }
}

@media (max-width: 720px){
  .nav-links, .header-phone span{ display:none; }
  .nav-toggle{ display:block; }
  .header-cta .btn-sm{ display:none; }
  .mobile-nav-panel{
    position: fixed; inset:0;
    background: var(--ink);
    z-index: 800;
    display:flex; flex-direction:column;
    align-items:center; justify-content:center;
    gap: 26px;
    opacity:0; visibility:hidden;
    transition: opacity .3s var(--ease);
    overscroll-behavior: contain;
    touch-action: none;
    min-height: 100vh;
    min-height: -webkit-fill-available;
  }
  .mobile-nav-panel.is-open{ opacity:1; visibility:visible; }
  .mobile-nav-panel a{ font-family: var(--font-display); font-size: 26px; color: var(--text-on-dark); }
  .mobile-cta{ display:flex; }
  .wa-float{ bottom: 82px; }
  body{ padding-bottom: 62px; }
  
  .gallery-grid{ grid-template-columns: 1fr; gap: 20px; }
  .gallery-item{ aspect-ratio: 4/5; }
  .gallery-item:nth-child(1){ grid-column: span 1; aspect-ratio: 4/5; }
}

@media (max-width: 620px){
  .services-grid{ grid-template-columns: 1fr; }
  .process-grid{ grid-template-columns: 1fr; }
  .footer-grid{ grid-template-columns: 1fr; }
  .stats-bar .container{ grid-template-columns: repeat(2,1fr); }
  .contact-cards-only{ grid-template-columns: 1fr; }
}