/* =========================================================
   Paris City — Soundproofing & Acoustic Decor
   Premium Dark Luxury Theme
   ========================================================= */

:root{
  /* Colors */
  --c-black:#0B0B0D;
  --c-charcoal:#141417;
  --c-graphite:#1C1D21;
  --c-steel:#2A2C31;
  --c-line:rgba(255,255,255,.08);
  --c-white:#FFFFFF;
  --c-muted:#B8B9BE;
  --c-gold:#C9A227;
  --c-gold-2:#E4C25A;
  --c-gold-soft:rgba(201,162,39,.15);

  /* Typography */
  --font-ar:'Cairo','Tajawal',system-ui,-apple-system,Segoe UI,Roboto,sans-serif;

  /* Radius & Shadow */
  --r-sm:10px;
  --r-md:16px;
  --r-lg:24px;
  --shadow-1:0 10px 30px rgba(0,0,0,.45);
  --shadow-gold:0 10px 40px rgba(201,162,39,.25);

  /* Layout */
  --container:1240px;
  --header-h:76px;

  /* Motion */
  --ease:cubic-bezier(.22,.61,.36,1);
}

*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font-ar);
  background:var(--c-black);
  color:var(--c-white);
  line-height:1.8;
  direction:rtl;
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit}

.container{width:min(100% - 32px,var(--container));margin-inline:auto}

/* ---------- Typography helpers ---------- */
h1,h2,h3,h4{font-weight:700;line-height:1.35;margin:0 0 .6em}
h1{font-size:clamp(2rem,5vw,4rem);font-weight:900;letter-spacing:-.5px}
h2{font-size:clamp(1.6rem,3.4vw,2.6rem)}
h3{font-size:clamp(1.2rem,2vw,1.5rem)}
p{color:var(--c-muted);margin:0 0 1em}

.eyebrow{
  display:inline-block;
  font-size:.8rem;
  letter-spacing:2px;
  color:var(--c-gold);
  text-transform:uppercase;
  margin-bottom:14px;
  position:relative;
  padding-inline-start:26px;
}
.eyebrow::before{
  content:"";position:absolute;inset-inline-start:0;top:50%;
  width:18px;height:1px;background:var(--c-gold);transform:translateY(-50%);
}

.gold{color:var(--c-gold)}
.gradient-gold{
  background:linear-gradient(135deg,var(--c-gold),var(--c-gold-2));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;gap:10px;
  padding:14px 26px;border-radius:999px;
  font-weight:700;font-size:.95rem;
  transition:transform .3s var(--ease),box-shadow .3s var(--ease),background .3s var(--ease);
  will-change:transform;
}
.btn-gold{
  background:linear-gradient(135deg,var(--c-gold),var(--c-gold-2));
  color:#0B0B0D;
  box-shadow:var(--shadow-gold);
}
.btn-gold:hover{transform:translateY(-3px)}
.btn-ghost{
  border:1px solid var(--c-line);
  color:var(--c-white);
  backdrop-filter:blur(6px);
  background:rgba(255,255,255,.03);
}
.btn-ghost:hover{border-color:var(--c-gold);color:var(--c-gold)}
.btn-wa{
  background:#1F2C24;color:#25D366;border:1px solid rgba(37,211,102,.35);
}
.btn-wa:hover{background:#25D366;color:#0B0B0D}

/* ---------- Header ---------- */
.site-header{
  position:fixed;inset-inline:0;top:0;z-index:1000;
  height:var(--header-h);
  display:flex;align-items:center;
  background:rgba(11,11,13,.65);
  backdrop-filter:blur(14px);
  border-bottom:1px solid transparent;
  transition:background .3s var(--ease),border-color .3s var(--ease);
}
.site-header.scrolled{
  background:rgba(11,11,13,.92);
  border-bottom-color:var(--c-line);
}
.nav{display:flex;align-items:center;justify-content:space-between;width:100%}
.brand{display:flex;align-items:center;gap:12px;font-weight:900}
.brand-mark{
  width:40px;height:40px;border-radius:12px;
  background:linear-gradient(135deg,var(--c-gold),var(--c-gold-2));
  display:grid;place-items:center;color:#0B0B0D;font-weight:900;
  box-shadow:var(--shadow-gold);
}
.brand-text{font-size:1.05rem}
.brand-text small{display:block;font-size:.7rem;color:var(--c-muted);font-weight:400;letter-spacing:1px}

.nav-links{display:flex;gap:26px;align-items:center}
.nav-links a{
  font-size:.92rem;font-weight:600;color:var(--c-muted);
  position:relative;transition:color .25s var(--ease);
}
.nav-links a:hover,.nav-links a.active{color:var(--c-white)}
.nav-links a::after{
  content:"";position:absolute;bottom:-6px;inset-inline-start:0;width:0;height:2px;
  background:var(--c-gold);transition:width .3s var(--ease);
}
.nav-links a:hover::after,.nav-links a.active::after{width:100%}

.nav-cta{display:flex;align-items:center;gap:10px}
.burger{display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--c-line);place-items:center}
.burger span{display:block;width:20px;height:2px;background:#fff;position:relative;transition:.3s}
.burger span::before,.burger span::after{content:"";position:absolute;inset-inline-start:0;width:20px;height:2px;background:#fff;transition:.3s}
.burger span::before{top:-6px}
.burger span::after{top:6px}
.burger.open span{background:transparent}
.burger.open span::before{top:0;transform:rotate(45deg)}
.burger.open span::after{top:0;transform:rotate(-45deg)}

@media (max-width:980px){
  .nav-links{
    position:fixed;inset:var(--header-h) 0 auto 0;
    flex-direction:column;align-items:flex-start;
    background:rgba(11,11,13,.98);
    padding:28px 24px;gap:18px;
    border-bottom:1px solid var(--c-line);
    transform:translateY(-110%);transition:transform .35s var(--ease);
    max-height:calc(100vh - var(--header-h));
    overflow-y:auto;
  }
  .nav-links.open{transform:translateY(0)}
  .nav-links a{font-size:1rem}
  .nav-cta .btn-ghost{display:none}
  .burger{display:grid}
}

/* ---------- Hero ---------- */
.hero{
  position:relative;min-height:100vh;display:flex;align-items:center;
  padding-top:var(--header-h);overflow:hidden;
}
.hero::before{
  content:"";position:absolute;inset:0;z-index:0;
  background:
    radial-gradient(1200px 600px at 80% 20%,rgba(201,162,39,.18),transparent 60%),
    radial-gradient(900px 500px at 10% 90%,rgba(201,162,39,.10),transparent 60%),
    linear-gradient(180deg,#0B0B0D 0%,#0B0B0D 60%,#0E0F12 100%);
}
.hero-media{
  position:absolute;inset:0;z-index:-1;
  background-size:cover;background-position:center;
  opacity:.35;filter:contrast(1.05) saturate(.9);
}
.hero-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(11,11,13,.55),rgba(11,11,13,.95));
}
.hero-inner{position:relative;z-index:2;max-width:820px}
.hero h1 span{display:block}
.hero p.lead{font-size:clamp(1rem,1.4vw,1.15rem);max-width:640px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:26px}
.hero-badges{display:flex;flex-wrap:wrap;gap:22px;margin-top:38px;color:var(--c-muted);font-size:.85rem}
.hero-badges strong{color:var(--c-white);display:block;font-size:1.15rem}

/* ---------- Sections ---------- */
section{padding:clamp(60px,8vw,110px) 0;position:relative}
.section-head{max-width:760px;margin-bottom:52px}
.section-head p{font-size:1.02rem}

/* ---------- Grid & Cards ---------- */
.grid{display:grid;gap:24px}
.grid-2{grid-template-columns:repeat(2,1fr)}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}
@media (max-width:1024px){.grid-3,.grid-4{grid-template-columns:repeat(2,1fr)}}
@media (max-width:640px){.grid-2,.grid-3,.grid-4{grid-template-columns:1fr}}

.card{
  position:relative;background:linear-gradient(180deg,var(--c-charcoal),var(--c-graphite));
  border:1px solid var(--c-line);border-radius:var(--r-lg);overflow:hidden;
  transition:transform .4s var(--ease),border-color .4s var(--ease),box-shadow .4s var(--ease);
}
.card:hover{transform:translateY(-6px);border-color:rgba(201,162,39,.45);box-shadow:var(--shadow-1)}
.card-media{aspect-ratio:16/10;overflow:hidden;position:relative}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .8s var(--ease)}
.card:hover .card-media img{transform:scale(1.06)}
.card-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,transparent 40%,rgba(11,11,13,.85));
}
.card-icon{
  position:absolute;top:14px;inset-inline-end:14px;z-index:2;
  width:44px;height:44px;border-radius:12px;display:grid;place-items:center;
  background:rgba(11,11,13,.7);border:1px solid var(--c-gold-soft);color:var(--c-gold);
  backdrop-filter:blur(8px);font-size:1.2rem;
}
.card-body{padding:22px 22px 26px}
.card-body h3{margin-bottom:8px}
.card-body p{font-size:.92rem;margin-bottom:18px}
.card-link{
  color:var(--c-gold);font-weight:700;font-size:.9rem;
  display:inline-flex;align-items:center;gap:8px;transition:gap .3s var(--ease);
}
.card-link:hover{gap:14px}

/* ---------- Why Us ---------- */
.why{
  background:linear-gradient(180deg,var(--c-black),var(--c-charcoal));
  border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line);
}
.why-item{
  padding:26px 22px;border:1px solid var(--c-line);border-radius:var(--r-md);
  background:rgba(255,255,255,.02);
  transition:border-color .3s var(--ease),transform .3s var(--ease);
}
.why-item:hover{border-color:var(--c-gold);transform:translateY(-4px)}
.why-item .num{font-size:.8rem;color:var(--c-gold);letter-spacing:2px;font-weight:700}
.why-item h4{margin:10px 0 6px;font-size:1.05rem}
.why-item p{font-size:.9rem;margin:0}

/* ---------- Split ---------- */
.split{display:grid;grid-template-columns:1.05fr 1fr;gap:56px;align-items:center}
@media (max-width:900px){.split{grid-template-columns:1fr;gap:32px}}
.split-media{
  position:relative;border-radius:var(--r-lg);overflow:hidden;
  border:1px solid var(--c-line);box-shadow:var(--shadow-1);
}
.split-media img{width:100%;height:100%;object-fit:cover;aspect-ratio:4/3}
.split-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,transparent 50%,rgba(11,11,13,.6));
}
.split ul{list-style:none;padding:0;margin:18px 0 26px}
.split ul li{
  position:relative;padding-inline-start:28px;margin-bottom:10px;color:var(--c-muted);
}
.split ul li::before{
  content:"";position:absolute;inset-inline-start:0;top:.7em;
  width:10px;height:10px;border-radius:3px;
  background:linear-gradient(135deg,var(--c-gold),var(--c-gold-2));
  transform:rotate(45deg);
}

/* ---------- Problem / Solution ---------- */
.ps-block{display:grid;grid-template-columns:1fr 1fr;gap:24px}
@media (max-width:780px){.ps-block{grid-template-columns:1fr}}
.ps-item{padding:28px;border:1px solid var(--c-line);border-radius:var(--r-lg);
  background:linear-gradient(180deg,var(--c-charcoal),var(--c-graphite))}
.ps-item.problem{border-color:rgba(255,90,90,.25)}
.ps-item.solution{border-color:rgba(201,162,39,.4)}
.ps-item h3{margin-top:0}

/* ---------- Gallery ---------- */
.filters{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:26px}
.filters button{
  padding:9px 16px;border-radius:999px;border:1px solid var(--c-line);
  font-size:.85rem;color:var(--c-muted);transition:.25s var(--ease);
}
.filters button.active,.filters button:hover{
  color:#0B0B0D;background:linear-gradient(135deg,var(--c-gold),var(--c-gold-2));border-color:transparent;
}
.gallery{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
@media (max-width:900px){.gallery{grid-template-columns:repeat(2,1fr)}}
@media (max-width:520px){.gallery{grid-template-columns:1fr}}
.gallery figure{
  margin:0;position:relative;overflow:hidden;border-radius:var(--r-md);
  border:1px solid var(--c-line);cursor:pointer;aspect-ratio:4/3;
}
.gallery img{width:100%;height:100%;object-fit:cover;transition:transform .8s var(--ease)}
.gallery figure:hover img{transform:scale(1.08)}
.gallery figcaption{
  position:absolute;inset:auto 0 0 0;padding:14px 16px;
  background:linear-gradient(180deg,transparent,rgba(11,11,13,.9));
  font-size:.85rem;color:#fff;
}

/* ---------- Lightbox ---------- */
.lightbox{
  position:fixed;inset:0;background:rgba(5,5,7,.95);z-index:2000;
  display:none;align-items:center;justify-content:center;padding:24px;
}
.lightbox.open{display:flex}
.lightbox img{max-width:92vw;max-height:88vh;border-radius:var(--r-md);box-shadow:var(--shadow-1)}
.lightbox .close{
  position:absolute;top:20px;inset-inline-end:20px;
  width:44px;height:44px;border-radius:50%;border:1px solid var(--c-line);
  display:grid;place-items:center;color:#fff;font-size:1.2rem;
}

/* ---------- Before / After ---------- */
.ba{
  position:relative;border-radius:var(--r-lg);overflow:hidden;
  border:1px solid var(--c-line);user-select:none;aspect-ratio:16/9;
}
.ba img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.ba .after{clip-path:inset(0 0 0 50%)}
.ba .handle{
  position:absolute;top:0;bottom:0;inset-inline-start:50%;width:3px;
  background:var(--c-gold);transform:translateX(-50%);pointer-events:none;
}
.ba .handle::after{
  content:"↔";position:absolute;top:50%;inset-inline-start:50%;
  transform:translate(-50%,-50%);
  width:44px;height:44px;border-radius:50%;background:var(--c-gold);color:#0B0B0D;
  display:grid;place-items:center;font-weight:900;
}
.ba input[type=range]{
  position:absolute;inset:0;width:100%;height:100%;opacity:0;cursor:ew-resize;margin:0;
}

/* ---------- Timeline ---------- */
.timeline{position:relative;padding-inline-start:28px;border-inline-start:1px solid var(--c-line)}
.step{position:relative;padding-bottom:34px}
.step::before{
  content:"";position:absolute;inset-inline-start:-35px;top:6px;
  width:14px;height:14px;border-radius:50%;
  background:linear-gradient(135deg,var(--c-gold),var(--c-gold-2));
  box-shadow:0 0 0 6px rgba(201,162,39,.15);
}
.step .n{font-weight:900;color:var(--c-gold);font-size:.9rem;letter-spacing:2px}
.step h4{margin:6px 0 6px;font-size:1.1rem}
.step p{margin:0;font-size:.92rem}

/* ---------- CTA band ---------- */
.cta-band{
  background:
    radial-gradient(800px 300px at 50% 0%,rgba(201,162,39,.22),transparent 60%),
    linear-gradient(180deg,var(--c-charcoal),var(--c-black));
  border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line);
  text-align:center;
}
.cta-band h2{margin-bottom:12px}
.cta-band .hero-actions{justify-content:center}

/* ---------- FAQ ---------- */
.faq{max-width:900px;margin-inline:auto}
.faq details{
  border:1px solid var(--c-line);border-radius:var(--r-md);
  padding:18px 22px;margin-bottom:12px;background:rgba(255,255,255,.02);
  transition:border-color .3s var(--ease);
}
.faq details[open]{border-color:rgba(201,162,39,.5)}
.faq summary{
  list-style:none;cursor:pointer;font-weight:700;font-size:1rem;
  display:flex;justify-content:space-between;align-items:center;gap:16px;
}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{
  content:"+";color:var(--c-gold);font-size:1.4rem;font-weight:400;transition:transform .3s var(--ease);
}
.faq details[open] summary::after{content:"–"}
.faq details p{margin:14px 0 0;font-size:.94rem}

/* ---------- Page hero (inner pages) ---------- */
.page-hero{
  position:relative;padding:calc(var(--header-h) + 70px) 0 70px;
  overflow:hidden;border-bottom:1px solid var(--c-line);
}
.page-hero::before{
  content:"";position:absolute;inset:0;z-index:0;
  background:
    radial-gradient(900px 400px at 80% 0%,rgba(201,162,39,.18),transparent 60%),
    linear-gradient(180deg,#0B0B0D,#0E0F12);
}
.page-hero .container{position:relative;z-index:2}
.page-hero h1{max-width:900px}
.page-hero p{max-width:720px;font-size:1.05rem}
.breadcrumbs{font-size:.85rem;color:var(--c-muted);margin-bottom:16px}
.breadcrumbs a:hover{color:var(--c-gold)}
.breadcrumbs span{color:var(--c-gold);margin-inline:8px}

/* ---------- Footer ---------- */
.site-footer{
  background:linear-gradient(180deg,var(--c-black),#050506);
  border-top:1px solid var(--c-line);padding:70px 0 26px;font-size:.9rem;
}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:36px}
@media (max-width:900px){.footer-grid{grid-template-columns:1fr 1fr}}
@media (max-width:560px){.footer-grid{grid-template-columns:1fr}}
.site-footer h5{margin:0 0 16px;font-size:.95rem;letter-spacing:1px;color:var(--c-white)}
.site-footer a{color:var(--c-muted);transition:color .25s var(--ease)}
.site-footer a:hover{color:var(--c-gold)}
.site-footer ul{list-style:none;padding:0;margin:0}
.site-footer li{margin-bottom:10px}
.copyright{
  margin-top:44px;padding-top:22px;border-top:1px solid var(--c-line);
  text-align:center;color:var(--c-muted);font-size:.82rem;
}

/* ---------- Floating Buttons ---------- */
.floaters{position:fixed;inset-inline-end:18px;bottom:18px;z-index:1500;display:flex;flex-direction:column;gap:12px}
.floater{
  width:56px;height:56px;border-radius:50%;display:grid;place-items:center;
  box-shadow:var(--shadow-1);transition:transform .3s var(--ease);
}
.floater:hover{transform:scale(1.08)}
.floater.wa{background:#25D366;color:#0B0B0D}
.floater.call{background:linear-gradient(135deg,var(--c-gold),var(--c-gold-2));color:#0B0B0D}
.floater svg{width:26px;height:26px}
@media (max-width:520px){
  .floaters{inset-inline-end:12px;bottom:12px}
  .floater{width:52px;height:52px}
}

/* ---------- Reveal Animations ---------- */
.reveal{opacity:0;transform:translateY(28px);transition:opacity .8s var(--ease),transform .8s var(--ease)}
.reveal.in{opacity:1;transform:none}
.reveal.delay-1{transition-delay:.1s}
.reveal.delay-2{transition-delay:.2s}
.reveal.delay-3{transition-delay:.3s}

@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  .reveal{opacity:1;transform:none}
}