/* =========================================================
   RTC — رسملة التسويق للمقاولات
   Design tokens: deep violet brand + metallic amber "voltage" accent
   ========================================================= */
:root{
  --c-primary:#442c72;      /* بنفسجي داكن - العلامة الأساسية */
  --c-primary-2:#6642b9;    /* بنفسجي فاتح - العلامة الثانوية */
  --c-primary-dark:#2c1c4d; /* بنفسجي أعمق للتدرجات */
  --c-accent:#c9973e;       /* ذهبي معدني - لمسة "الجهد الكهربائي" */
  --c-accent-light:#e3b968;
  --c-ink:#1c1626;          /* شبه أسود بنفسجي - نصوص وخلفيات داكنة */
  --c-paper:#faf9fc;        /* خلفية فاتحة */
  --c-paper-tint:#f1eef8;   /* خلفية فاتحة بلمسة بنفسجية */
  --c-text:#2c2438;
  --c-muted:#6c6478;
  --c-line:#e4dff0;

  --font-display:'El Messiri', 'Tajawal', sans-serif;
  --font-body:'Tajawal', sans-serif;

  --radius:14px;
  --radius-lg:22px;
  --shadow-sm:0 2px 10px rgba(28,22,38,.06);
  --shadow-md:0 12px 30px rgba(44,28,77,.12);
  --shadow-lg:0 24px 60px rgba(28,22,38,.18);
  --ease:cubic-bezier(.22,.61,.36,1);
}

*{box-sizing:border-box;}
html{
  scroll-behavior:smooth;
  overflow-x:hidden;
  overflow-x:clip;
  -webkit-text-size-adjust:100%;
  text-size-adjust:100%;
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  *{animation-duration:.001ms !important; transition-duration:.001ms !important;}
}
body{
  margin:0;
  font-family:var(--font-body);
  color:var(--c-text);
  background:var(--c-paper);
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
  overflow-x:clip;
  max-width:100%;
}
img{max-width:100%; display:block;}
a{color:inherit; text-decoration:none;}
ul{margin:0; padding:0; list-style:none;}
h1,h2,h3,h4{font-family:var(--font-display); margin:0; color:var(--c-primary);}
p{margin:0;}
:focus-visible{outline:3px solid var(--c-accent); outline-offset:3px;}

.container{
  width:100%;
  max-width:1180px;
  margin:0 auto;
  padding:0 24px;
}

/* ---------- reveal on scroll ---------- */
.reveal{opacity:0; transform:translateY(24px); transition:opacity .7s var(--ease), transform .7s var(--ease);}
.reveal.in-view{opacity:1; transform:translateY(0);}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex; align-items:center; justify-content:center; gap:8px;
  padding:14px 30px;
  border-radius:999px;
  font-weight:700;
  font-size:.98rem;
  border:2px solid transparent;
  cursor:pointer;
  transition:transform .25s var(--ease), box-shadow .25s var(--ease), background .25s var(--ease), color .25s var(--ease), border-color .25s var(--ease);
}
.btn:hover{transform:translateY(-2px);}
.btn-accent{background:linear-gradient(135deg,var(--c-accent-light),var(--c-accent)); color:var(--c-ink); box-shadow:0 10px 24px rgba(201,151,62,.35);}
.btn-accent:hover{box-shadow:0 14px 30px rgba(201,151,62,.45);}
.btn-ghost{border-color:rgba(255,255,255,.5); color:#fff;}
.btn-ghost:hover{background:rgba(255,255,255,.1); border-color:#fff;}
.btn-primary{background:var(--c-primary); color:#fff;}
.btn-primary:hover{background:var(--c-primary-2);}
.btn-sm{padding:10px 22px; font-size:.88rem;}

/* ---------- voltage progress bar ---------- */
.volt-progress{
  position:fixed; top:0; right:0; height:3px; width:0%;
  background:linear-gradient(90deg,var(--c-accent),var(--c-primary-2));
  z-index:1000; transition:width .1s linear;
}

/* ================= HEADER ================= */
.site-header{
  position:fixed; inset-inline:0; top:0; z-index:900;
  background:rgba(250,249,252,.7);
  backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid transparent;
  transition:background .3s var(--ease), border-color .3s var(--ease), box-shadow .3s var(--ease);
}
.site-header.scrolled{
  background:rgba(250,249,252,.92);
  border-color:var(--c-line);
  box-shadow:var(--shadow-sm);
}
.header-inner{
  display:flex; align-items:center; justify-content:space-between;
  height:78px;
  gap:20px;
}
.brand{display:flex; align-items:center; gap:12px; flex-shrink:0;}
.brand-logo{height:42px; width:auto; border-radius:8px;}
.brand-text{display:flex; flex-direction:column; line-height:1.2;}
.brand-text strong{font-family:var(--font-display); font-size:1.15rem; color:var(--c-primary); letter-spacing:.5px;}
.brand-text em{font-style:normal; font-size:.72rem; color:var(--c-muted);}

.main-nav ul{display:flex; gap:6px;}
.nav-link{
  position:relative;
  padding:10px 16px;
  font-size:.95rem; font-weight:500;
  color:var(--c-text);
  border-radius:999px;
  transition:color .25s var(--ease), background .25s var(--ease);
}
.nav-link:hover{background:var(--c-paper-tint); color:var(--c-primary);}
.nav-link.active{color:var(--c-primary); font-weight:700;}
.nav-link.active::after{
  content:''; position:absolute; inset-inline:16px; bottom:4px; height:2px;
  background:var(--c-accent); border-radius:2px;
}

.header-actions{display:flex; align-items:center; gap:10px;}
.header-cta{display:inline-flex;}
.lang-switch{
  border:1.5px solid var(--c-line); background:transparent; color:var(--c-muted);
  border-radius:999px; padding:6px 12px; font-size:.78rem; font-weight:700; cursor:pointer;
  font-family:var(--font-body);
  transition:border-color .2s, color .2s;
}
.lang-switch:hover{border-color:var(--c-primary-2); color:var(--c-primary-2);}

.nav-toggle{
  display:none; flex-direction:column; justify-content:center; gap:5px;
  width:40px; height:40px; border:none; background:none; cursor:pointer;
}
.nav-toggle span{display:block; height:2px; background:var(--c-primary); border-radius:2px; transition:transform .3s var(--ease), opacity .3s var(--ease);}

@media (max-width:920px){
  .header-cta{display:none;}
  .main-nav{
    position:fixed; inset:78px 0 0 0; height:calc(100vh - 78px);
    background:var(--c-paper);
    transform:translateY(-110%);
    transition:transform .4s var(--ease);
    overflow-y:auto;
  }
  .main-nav.open{transform:translateY(0);}
  .main-nav ul{flex-direction:column; padding:24px; gap:4px;}
  .nav-link{display:block; padding:16px; font-size:1.1rem;}
  .nav-toggle{display:flex;}
  .nav-toggle.open span:nth-child(1){transform:translateY(7px) rotate(45deg);}
  .nav-toggle.open span:nth-child(2){opacity:0;}
  .nav-toggle.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}
}

/* ================= HERO ================= */
.hero{
  position:relative;
  min-height:100vh;
  display:flex; align-items:center;
  padding-top:78px;
  overflow:hidden;
  background:radial-gradient(120% 90% at 20% -10%, var(--c-primary-2) 0%, var(--c-primary) 45%, var(--c-primary-dark) 100%);
  isolation:isolate;
}
.hero-grid{
  position:absolute; inset:0;
  background-image:
    linear-gradient(rgba(255,255,255,.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.05) 1px, transparent 1px);
  background-size:56px 56px;
  mask-image:radial-gradient(circle at 75% 40%, black, transparent 70%);
  z-index:0;
}
.hero-lines{position:absolute; inset:0; width:100%; height:100%; z-index:0;}
.hero-lines .line{fill:none; stroke:rgba(230,190,110,.35); stroke-width:1.5; stroke-dasharray:8 10;}
.hero-lines .line-2{stroke:rgba(255,255,255,.15);}
.hero-lines .line{animation:dashMove 22s linear infinite;}
@keyframes dashMove{to{stroke-dashoffset:-400;}}

.hero-inner{position:relative; z-index:1; padding-block:80px 70px; width:100%; max-width:100%;}
.eyebrow{
  display:inline-flex; flex-wrap:wrap; align-items:center; gap:8px;
  max-width:100%;
  color:var(--c-accent-light); font-weight:700; font-size:.85rem;
  letter-spacing:.5px; margin-bottom:22px;
}
.eyebrow .dot{color:rgba(255,255,255,.4);}
.hero-title{
  color:#fff; font-size:clamp(2.1rem,5.4vw,4.2rem);
  font-weight:700; line-height:1.35; margin-bottom:26px;
  padding-block:.1em;
  overflow-wrap:break-word;
}
.accent-word{color:var(--c-accent-light);}
.hero-sub{
  color:rgba(255,255,255,.82); font-size:clamp(1.02rem,1.6vw,1.2rem);
  max-width:640px; margin-bottom:40px;
}
.hero-actions{display:flex; flex-wrap:wrap; gap:16px; margin-bottom:64px;}

.hero-stats{
  display:flex; flex-wrap:wrap; align-items:center; gap:28px;
  padding-top:36px; border-top:1px solid rgba(255,255,255,.18);
}
.stat{display:flex; flex-direction:column; gap:4px;}
.stat-num{font-family:var(--font-display); font-size:2.2rem; font-weight:700; color:#fff;}
.stat-plus{font-family:var(--font-display); font-size:2.2rem; font-weight:700; color:var(--c-accent-light); margin-inline-start:-4px;}
.stat-label{font-size:.85rem; color:rgba(255,255,255,.7);}
.stat-sep{width:1px; height:38px; background:rgba(255,255,255,.2);}

@media (max-width:600px){
  .stat-sep{display:none;}
  .hero-stats{gap:26px 40px;}
  .hero{min-height:auto;}
  .hero-inner{padding-block:64px 56px;}
  .hero-title{font-size:clamp(1.8rem,7.6vw,2.5rem);}
  .hero-title br{display:none;}
  .hero-sub{font-size:1rem;}
  .hero-actions{margin-bottom:48px;}
  .btn{padding:13px 24px; font-size:.92rem;}
  .stat-num, .stat-plus{font-size:1.8rem;}
  .section{padding:70px 0;}
}

/* ================= SECTIONS (generic) ================= */
.section{padding:100px 0;}
.section-tint{background:var(--c-paper-tint);}
.section-dark{
  background:linear-gradient(160deg, var(--c-primary-dark), var(--c-ink) 75%);
  color:rgba(255,255,255,.85);
}
.overline{
  color:var(--c-primary-2); font-weight:700; font-size:.85rem;
  letter-spacing:.5px; margin-bottom:10px;
}
.overline-light{color:var(--c-accent-light);}
.section-title{font-size:clamp(1.9rem,3.4vw,2.6rem); margin-bottom:16px;}
.title-light{color:#fff;}
.section-sub{color:var(--c-muted); max-width:620px; font-size:1.05rem; margin-bottom:20px;}
.sub-light{color:rgba(255,255,255,.68);}

/* ================= ABOUT ================= */
.about-grid{
  display:grid; grid-template-columns:repeat(3,1fr); gap:24px;
  margin-top:46px;
}
.about-card{
  background:#fff; border:1px solid var(--c-line); border-radius:var(--radius-lg);
  padding:32px 28px; box-shadow:var(--shadow-sm);
}
.about-card h3{font-size:1.2rem; margin-bottom:14px; position:relative; padding-inline-start:16px;}
.about-card h3::before{
  content:''; position:absolute; inset-inline-start:0; top:4px; bottom:4px; width:4px;
  background:var(--c-accent); border-radius:4px;
}
.about-card p{color:var(--c-muted); font-size:.98rem;}

@media (max-width:900px){.about-grid{grid-template-columns:1fr;}}

.ceo-card{
  margin-top:40px;
  display:grid; grid-template-columns:280px 1fr; gap:44px;
  align-items:start;
  background:linear-gradient(160deg,var(--c-primary),var(--c-primary-dark));
  border-radius:var(--radius-lg);
  padding:44px;
  box-shadow:var(--shadow-md);
  color:rgba(255,255,255,.85);
}
.ceo-photo-wrap{
  position:relative; border-radius:var(--radius); overflow:hidden;
  border:3px solid rgba(255,255,255,.18);
}
.ceo-photo{width:100%; aspect-ratio:4/5; object-fit:cover;}
.ceo-content .overline{color:var(--c-accent-light);}
.ceo-content p{color:rgba(255,255,255,.82); margin-bottom:14px; font-size:.98rem;}
.ceo-signature{
  margin-top:20px; font-family:var(--font-display); font-size:1.15rem; color:#fff; font-weight:700;
  display:flex; flex-direction:column; gap:2px;
}
.ceo-signature span{font-family:var(--font-body); font-size:.82rem; font-weight:400; color:var(--c-accent-light);}

@media (max-width:760px){
  .ceo-card{grid-template-columns:1fr; padding:28px;}
  .ceo-photo-wrap{max-width:220px;}
}

/* ================= SERVICES ================= */
.services-grid{
  display:grid; grid-template-columns:repeat(3,1fr); gap:28px;
  margin-top:46px;
}
.service-card{
  background:#fff; border-radius:var(--radius-lg); padding:36px 30px;
  border:1px solid var(--c-line);
  box-shadow:var(--shadow-sm);
  display:flex; flex-direction:column;
  transition:transform .3s var(--ease), box-shadow .3s var(--ease), border-color .3s var(--ease);
}
.service-card:hover{transform:translateY(-6px); box-shadow:var(--shadow-md); border-color:var(--c-primary-2);}
.service-icon{
  width:58px; height:58px; border-radius:16px; margin-bottom:22px;
  background:linear-gradient(135deg,var(--c-primary-2),var(--c-primary));
  display:flex; align-items:center; justify-content:center;
  flex-shrink:0;
}
.service-icon svg{width:28px; height:28px; fill:var(--c-accent-light); stroke:var(--c-accent-light);}
.service-card h3{font-size:1.22rem; margin-bottom:12px;}
.service-card > p{color:var(--c-muted); font-size:.95rem; margin-bottom:18px;}
.service-card ul{display:flex; flex-direction:column; gap:10px;}
.service-card li{
  position:relative; padding-inline-start:22px; font-size:.92rem; color:var(--c-text);
}
.service-card li::before{
  content:''; position:absolute; inset-inline-start:0; top:8px; width:8px; height:8px;
  background:var(--c-accent); border-radius:2px; transform:rotate(45deg);
}

/* زر طلب استشارة وعرض سعر أسفل كل بطاقة خدمة */
.service-card ul{flex-grow:1; margin-bottom:26px;}
.service-cta{
  margin-top:auto;
  width:100%;
}

@media (max-width:980px){.services-grid{grid-template-columns:1fr;}}

.solutions-block{margin-top:90px;}
.solutions-head{text-align:center; max-width:640px; margin:0 auto 46px;}
.solutions-head h3{font-size:1.7rem; margin-bottom:10px;}
.solutions-head p{color:var(--c-muted);}
.solutions-grid{display:grid; grid-template-columns:repeat(3,1fr); gap:30px;}
.solution-col{
  padding:28px; border-radius:var(--radius); background:#fff; border:1px solid var(--c-line);
}
.solution-col h4{font-size:1.1rem; margin-bottom:12px; color:var(--c-primary-2);}
.solution-col p{color:var(--c-muted); font-size:.93rem; margin-bottom:14px;}
.solution-col ul{display:flex; flex-direction:column; gap:8px;}
.solution-col li{position:relative; padding-inline-start:20px; font-size:.88rem; color:var(--c-text);}
.solution-col li::before{content:'—'; position:absolute; inset-inline-start:0; color:var(--c-accent);}

@media (max-width:900px){.solutions-grid{grid-template-columns:1fr;}}

/* ================= PROCESS (voltage line signature) ================= */
.process-line{
  position:relative; margin-top:60px;
  display:grid; grid-template-columns:repeat(5,1fr); gap:20px;
}
.process-line::before{
  content:'';
  position:absolute; top:26px; inset-inline:2%;
  height:2px;
  background:repeating-linear-gradient(90deg, var(--c-accent) 0 10px, transparent 10px 18px);
}
.process-step{position:relative; text-align:center; padding-top:0;}
.step-num{
  display:inline-flex; align-items:center; justify-content:center;
  width:54px; height:54px; border-radius:50%;
  background:linear-gradient(135deg,var(--c-primary-2),var(--c-primary));
  color:var(--c-accent-light);
  font-family:var(--font-display); font-weight:700; font-size:1.1rem;
  margin-bottom:18px; position:relative; z-index:1;
  box-shadow:0 0 0 6px var(--c-paper);
}
.process-step h4{font-size:1.02rem; margin-bottom:8px;}
.process-step p{font-size:.86rem; color:var(--c-muted);}

@media (max-width:900px){
  .process-line{grid-template-columns:1fr 1fr; gap:34px 20px;}
  .process-line::before{display:none;}
}
@media (max-width:520px){.process-line{grid-template-columns:1fr;}}

/* ================= PORTFOLIO — 3 صفوف ثابتة بأسهم ================= */
.portfolio-rows{
  margin-top:46px;
  display:flex; flex-direction:column; gap:20px;
}
.carousel-row{position:relative;}
.carousel-viewport{
  overflow-x:auto;
  scroll-snap-type:x proximity;
  scrollbar-width:none;
  -webkit-overflow-scrolling:touch;
  border-radius:var(--radius);
}
.carousel-viewport::-webkit-scrollbar{display:none;}
.carousel-track{
  display:flex; gap:18px;
  width:max-content;
}
.car-btn{
  position:absolute; top:50%; transform:translateY(-50%);
  z-index:2;
  width:46px; height:46px; border-radius:50%;
  border:1px solid rgba(255,255,255,.35);
  background:rgba(44,28,77,.75);
  backdrop-filter:blur(4px);
  color:#fff; font-size:1.6rem; line-height:1;
  display:flex; align-items:center; justify-content:center;
  cursor:pointer;
  box-shadow:var(--shadow-sm);
  transition:background .25s var(--ease), border-color .25s var(--ease);
}
.car-btn:hover{background:var(--c-accent); border-color:var(--c-accent); color:var(--c-ink);}
.car-left{left:10px;}
.car-right{right:10px;}
@media (max-width:640px){
  .car-btn{width:38px; height:38px; font-size:1.3rem;}
  .car-left{left:6px;}
  .car-right{right:6px;}
}

.portfolio-item{
  position:relative; border-radius:var(--radius); overflow:hidden; cursor:pointer;
  flex:0 0 300px;
  scroll-snap-align:start;
  aspect-ratio:4/3; background:var(--c-line);
}
@media (max-width:640px){
  .portfolio-item{flex-basis:220px;}
}
.portfolio-item img{width:100%; height:100%; object-fit:cover; transition:transform .5s var(--ease);}
.portfolio-item::after{
  content:''; position:absolute; inset:0;
  background:linear-gradient(180deg, transparent 40%, rgba(28,22,38,.75) 100%);
  opacity:0; transition:opacity .3s var(--ease);
}
.portfolio-item .p-label{
  position:absolute; bottom:14px; inset-inline:14px; color:#fff; font-weight:700; font-size:.9rem;
  opacity:0; transform:translateY(8px);
  transition:opacity .3s var(--ease), transform .3s var(--ease);
}
.portfolio-item:hover img{transform:scale(1.08);}
.portfolio-item:hover::after, .portfolio-item:hover .p-label{opacity:1; transform:translateY(0);}

/* ================= PARTNERS — عمودان ================= */
.partners-grid{
  margin-top:46px;
  display:grid; grid-template-columns:repeat(2,1fr); gap:22px;
  max-width:760px; margin-inline:auto;
}
.partner-logo{
  background:#fff; border:1px solid var(--c-line); border-radius:var(--radius);
  height:130px; display:flex; align-items:center; justify-content:center; padding:24px;
  transition:transform .3s var(--ease), box-shadow .3s var(--ease), border-color .3s;
}
.partner-logo:hover{transform:translateY(-4px); box-shadow:var(--shadow-md); border-color:var(--c-primary-2);}
.partner-logo img{max-width:100%; max-height:70px; width:auto; object-fit:contain;}
/* توسيط الشعار الأخير إذا كان عدد الشعارات فردياً */
.partners-grid > .partner-logo:last-child:nth-child(odd){
  grid-column:1 / -1;
  width:calc(50% - 11px);
  justify-self:center;
}
@media (max-width:520px){
  .partners-grid{gap:14px;}
  .partner-logo{height:100px; padding:16px;}
  .partner-logo img{max-height:54px;}
}

/* ================= CONTACT ================= */
.contact-grid{
  margin-top:50px;
  display:grid; grid-template-columns:.9fr 1.4fr; gap:50px;
}
.contact-info{display:flex; flex-direction:column; gap:30px;}
.info-item{display:flex; gap:16px; align-items:flex-start;}
.info-icon{
  flex-shrink:0; width:46px; height:46px; border-radius:12px;
  background:rgba(255,255,255,.06); border:1px solid rgba(255,255,255,.12);
  display:flex; align-items:center; justify-content:center;
}
.info-icon svg{width:22px; height:22px; fill:var(--c-accent-light);}
.info-item h4{color:#fff; font-size:1rem; margin-bottom:4px;}
.info-item p, .info-item a{color:rgba(255,255,255,.68); font-size:.94rem;}
.info-item a:hover{color:var(--c-accent-light);}

/* زر اتصل الآن */
.call-now-btn{
  align-self:flex-start;
  gap:10px;
}
.call-now-btn svg{width:20px; height:20px; fill:var(--c-ink);}

.contact-form{
  background:rgba(255,255,255,.04);
  border:1px solid rgba(255,255,255,.12);
  border-radius:var(--radius-lg);
  padding:36px;
  display:flex; flex-direction:column; gap:18px;
}
.form-row{display:grid; grid-template-columns:1fr 1fr; gap:18px;}
.field{display:flex; flex-direction:column; gap:8px;}
.field label{font-size:.85rem; color:rgba(255,255,255,.7);}
.field input, .field select, .field textarea{
  background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.16);
  border-radius:10px; padding:13px 16px;
  color:#fff; font-family:var(--font-body); font-size:.95rem;
  transition:border-color .25s;
}
.field input::placeholder, .field textarea::placeholder{color:rgba(255,255,255,.35);}
.field input:focus, .field select:focus, .field textarea:focus{border-color:var(--c-accent);}
.field select option{color:#000;}
.form-submit{margin-top:6px; width:100%;}
.form-status{font-size:.9rem; min-height:1.2em;}
.form-status.ok{color:#8be89a;}
.form-status.err{color:#f28b8b;}

@media (max-width:920px){
  .contact-grid{grid-template-columns:1fr;}
  .form-row{grid-template-columns:1fr;}
}

.map-wrap{margin-top:56px; border-radius:var(--radius-lg); overflow:hidden; border:1px solid rgba(255,255,255,.14); position:relative;}
.map-wrap iframe{filter:grayscale(.15); display:block;}
.map-link{
  position:absolute; bottom:16px; inset-inline-end:16px;
  background:var(--c-ink); color:#fff; font-size:.85rem; font-weight:700;
  padding:10px 18px; border-radius:999px; box-shadow:var(--shadow-sm);
  border:1px solid rgba(255,255,255,.15);
}
.map-link:hover{background:var(--c-primary);}

/* ================= FOOTER ================= */
.site-footer{background:var(--c-ink); color:rgba(255,255,255,.6); padding:44px 0;}
.footer-inner{display:flex; flex-wrap:wrap; align-items:center; justify-content:space-between; gap:22px;}
.site-footer .brand-text strong{color:#fff;}
.site-footer .brand-text em{color:rgba(255,255,255,.5);}
.footer-links{display:flex; flex-wrap:wrap; gap:22px;}
.footer-links a{font-size:.9rem; transition:color .2s;}
.footer-links a:hover{color:var(--c-accent-light);}
.footer-copy{font-size:.82rem; color:rgba(255,255,255,.45);}

/* ================= LIGHTBOX ================= */
.lightbox{
  position:fixed; inset:0; z-index:1100;
  background:rgba(15,10,22,.94);
  display:flex; align-items:center; justify-content:center;
  opacity:0; visibility:hidden; transition:opacity .3s var(--ease);
  padding:40px;
}
.lightbox.open{opacity:1; visibility:visible;}
.lightbox img{max-width:min(90vw,900px); max-height:82vh; border-radius:10px; box-shadow:var(--shadow-lg);}
.lightbox-close{
  position:absolute; top:24px; inset-inline-end:24px; width:44px; height:44px;
  border-radius:50%; border:1px solid rgba(255,255,255,.2); background:rgba(255,255,255,.06);
  color:#fff; font-size:1.1rem; cursor:pointer;
}
.lightbox-nav{
  position:absolute; top:50%; transform:translateY(-50%);
  width:52px; height:52px; border-radius:50%; border:1px solid rgba(255,255,255,.2);
  background:rgba(255,255,255,.06); color:#fff; font-size:1.8rem; cursor:pointer;
  display:flex; align-items:center; justify-content:center;
}
.lightbox-nav.prev{inset-inline-start:24px;}
.lightbox-nav.next{inset-inline-end:24px;}
.lightbox-nav:hover, .lightbox-close:hover{background:var(--c-accent); color:var(--c-ink); border-color:var(--c-accent);}

@media (max-width:640px){
  .lightbox-nav{width:42px; height:42px; font-size:1.4rem;}
  .lightbox{padding:16px;}
}