/* ============================================================
   AES s.r.o. | Advanced Energy Systems
   Professional Dark Corporate — Electric Yellow Accent
   ============================================================ */
@import url('https://fonts.googleapis.com/css2?family=Manrope:wght@300;400;500;600;700;800&display=swap');

:root {
  --bg:        #0a0a0b;
  --surface:   #111113;
  --card:      #16161a;
  --card2:     #1c1c21;
  --line:      #222228;
  --line2:     #2c2c34;
  --yellow:    #f4c400;
  --yellow2:   #ffe04d;
  --ya:        rgba(244,196,0,.10);
  --yb:        rgba(244,196,0,.05);
  --white:     #f2f2f4;
  --gray1:     #c8c8d0;
  --gray2:     #8888a0;
  --gray3:     #44444e;
  --font:      'Manrope', sans-serif;
  --ease:      cubic-bezier(.25,.46,.45,.94);
  --r:         4px;
}

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;font-size:16px}
body{font-family:var(--font);background:var(--bg);color:var(--gray1);overflow-x:hidden;-webkit-font-smoothing:antialiased}
a{text-decoration:none;color:inherit}
ul{list-style:none}
img{max-width:100%;display:block}
button{font-family:var(--font)}

.wrap{max-width:1140px;margin:0 auto;padding:0 2rem}

/* ── TOPBAR ── */
#topbar{
  background:var(--yellow);
  padding:.45rem 0;
  text-align:center;
}
.topbar-inner{
  display:flex;align-items:center;justify-content:center;gap:2rem;flex-wrap:wrap;
}
.topbar-item{
  display:flex;align-items:center;gap:.4rem;
  font-size:.75rem;font-weight:600;letter-spacing:.04em;color:#0a0a0b;
}
.topbar-item svg{width:13px;height:13px;stroke:#0a0a0b;fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;flex-shrink:0}
.topbar-item a{color:#0a0a0b;font-weight:700}

/* ── NAV ── */
#nav{
  position:sticky;top:0;z-index:200;
  height:66px;
  background:rgba(10,10,11,.96);
  border-bottom:1px solid var(--line);
  backdrop-filter:blur(20px);
  -webkit-backdrop-filter:blur(20px);
  display:flex;align-items:center;
}
.nav-inner{
  display:flex;align-items:center;justify-content:space-between;
  width:100%;max-width:1140px;margin:0 auto;padding:0 2rem;gap:1rem;
}
.nav-brand{display:flex;align-items:center;gap:.9rem}
.nav-brand-text{}
.nav-brand-name{
  font-size:1.1rem;font-weight:800;letter-spacing:-.01em;color:var(--white);line-height:1;
}
.nav-brand-name span{color:var(--yellow)}
.nav-brand-tagline{
  font-size:.58rem;font-weight:500;letter-spacing:.13em;text-transform:uppercase;color:var(--gray2);margin-top:3px;
}
.nav-sep{width:1px;height:28px;background:var(--line2);flex-shrink:0}
.nav-links{display:flex;gap:.1rem}
.nav-links a{
  font-size:.82rem;font-weight:600;letter-spacing:.01em;color:var(--gray2);
  padding:.42rem .9rem;border-radius:var(--r);
  transition:color .18s,background .18s;
}
.nav-links a:hover,.nav-links a.act{color:var(--white);background:rgba(255,255,255,.05)}
.nav-right{display:flex;align-items:center;gap:.75rem}

/* lang pill */
.lang-pill{
  display:flex;background:var(--card);border:1px solid var(--line2);border-radius:20px;padding:3px;gap:2px;
}
.lbtn{
  font-size:.7rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;
  padding:.26rem .65rem;border-radius:16px;border:none;background:transparent;color:var(--gray2);cursor:pointer;transition:all .18s;
}
.lbtn.on{background:var(--yellow);color:#0a0a0b}

/* logo */
.nav-logo img{height:36px;filter:invert(1)brightness(1.05);opacity:.8;transition:opacity .2s}
.nav-logo img:hover{opacity:1}

/* CTA btn small */
.nav-cta{
  font-size:.8rem;font-weight:700;padding:.45rem 1.1rem;background:var(--yellow);color:#0a0a0b;
  border-radius:var(--r);border:none;cursor:pointer;transition:background .18s;white-space:nowrap;
}
.nav-cta:hover{background:var(--yellow2)}

.hamburger{display:none;flex-direction:column;gap:4px;background:none;border:none;cursor:pointer;padding:4px}
.hamburger span{display:block;width:22px;height:1.5px;background:var(--white);border-radius:2px;transition:.25s}

/* drawer */
.drawer{
  display:none;position:fixed;top:66px;left:0;right:0;
  background:var(--surface);border-bottom:1px solid var(--line);
  padding:1.2rem 2rem;flex-direction:column;gap:.25rem;z-index:199;
}
.drawer.open{display:flex}
.drawer a{font-size:.95rem;font-weight:600;color:var(--gray2);padding:.5rem 0;border-bottom:1px solid var(--line);transition:color .18s}
.drawer a:last-of-type{border-bottom:none}
.drawer a:hover{color:var(--yellow)}

/* ── HERO ── */
#hero{padding:90px 0 80px;position:relative;overflow:hidden;border-bottom:1px solid var(--line)}

/* grid bg */
.hero-grid-bg{
  position:absolute;inset:0;
  background-image:linear-gradient(var(--line) 1px,transparent 1px),linear-gradient(90deg,var(--line) 1px,transparent 1px);
  background-size:72px 72px;
  opacity:.55;
  mask-image:radial-gradient(ellipse 80% 100% at 100% 50%,black 0%,transparent 65%);
  -webkit-mask-image:radial-gradient(ellipse 80% 100% at 100% 50%,black 0%,transparent 65%);
}

/* yellow glow */
.hero-glow{
  position:absolute;right:-100px;top:50%;transform:translateY(-50%);
  width:600px;height:600px;
  background:radial-gradient(circle,rgba(244,196,0,.07) 0%,transparent 65%);
  pointer-events:none;
}

.hero-inner{
  display:grid;grid-template-columns:1fr 420px;gap:4rem;align-items:center;position:relative;z-index:1;
}

.hero-badge{
  display:inline-flex;align-items:center;gap:.55rem;
  background:var(--ya);border:1px solid rgba(244,196,0,.2);
  padding:.4rem 1rem;border-radius:20px;
  font-size:.72rem;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--yellow);
  margin-bottom:1.8rem;
}
.hero-badge svg{width:12px;height:12px;fill:var(--yellow)}

h1.hero-title{
  font-size:clamp(2.6rem,5vw,4.2rem);font-weight:800;letter-spacing:-.03em;line-height:1.05;color:var(--white);margin-bottom:1.4rem;
}
h1.hero-title .y{color:var(--yellow)}

.hero-desc{
  font-size:1rem;font-weight:400;line-height:1.8;color:var(--gray2);max-width:480px;margin-bottom:2.2rem;
}

.hero-actions{display:flex;gap:.75rem;flex-wrap:wrap;margin-bottom:3rem}

.btn-primary{
  display:inline-flex;align-items:center;gap:.5rem;
  padding:.78rem 1.75rem;background:var(--yellow);color:#0a0a0b;
  font-size:.88rem;font-weight:700;border-radius:var(--r);border:none;cursor:pointer;
  transition:background .18s,transform .18s,box-shadow .18s;
}
.btn-primary:hover{background:var(--yellow2);transform:translateY(-1px);box-shadow:0 6px 20px rgba(244,196,0,.18)}
.btn-primary svg{width:15px;height:15px;flex-shrink:0}

.btn-ghost{
  display:inline-flex;align-items:center;gap:.5rem;
  padding:.78rem 1.75rem;background:transparent;color:var(--gray1);
  font-size:.88rem;font-weight:600;border-radius:var(--r);border:1px solid var(--line2);cursor:pointer;
  transition:border-color .18s,color .18s;
}
.btn-ghost:hover{border-color:rgba(244,196,0,.4);color:var(--yellow)}

.hero-kpis{
  display:flex;gap:2rem;padding-top:2rem;border-top:1px solid var(--line);
}
.kpi-val{font-size:1.7rem;font-weight:800;color:var(--white);line-height:1}
.kpi-val em{color:var(--yellow);font-style:normal}
.kpi-label{font-size:.7rem;font-weight:500;letter-spacing:.07em;text-transform:uppercase;color:var(--gray2);margin-top:.3rem}

/* company card */
.hero-card{
  background:var(--card);border:1px solid var(--line2);border-radius:8px;overflow:hidden;
}
.hero-card-header{
  background:var(--yellow);padding:1.1rem 1.5rem;
  display:flex;align-items:center;gap:.75rem;
}
.hero-card-header img{height:32px;width:auto}
.hero-card-header-text{}
.hero-card-title{font-size:.9rem;font-weight:800;color:#0a0a0b;letter-spacing:-.01em}
.hero-card-sub{font-size:.62rem;font-weight:600;letter-spacing:.1em;text-transform:uppercase;color:rgba(10,10,11,.5)}
.hero-card-body{padding:1.2rem 1.5rem}
.card-row{
  display:flex;justify-content:space-between;align-items:baseline;gap:.5rem;
  padding:.6rem 0;border-bottom:1px solid var(--line);font-size:.83rem;
}
.card-row:last-child{border-bottom:none}
.card-key{color:var(--gray2);font-weight:500;white-space:nowrap;flex-shrink:0}
.card-val{color:var(--white);font-weight:600;text-align:right;line-height:1.4}
.card-val.y{color:var(--yellow)}
.card-val a{color:inherit;transition:opacity .18s}
.card-val a:hover{opacity:.7}

/* ── SECTION BASE ── */
.sec{padding:96px 0;border-bottom:1px solid var(--line)}
.sec-label{
  display:inline-flex;align-items:center;gap:.5rem;
  font-size:.68rem;font-weight:700;letter-spacing:.18em;text-transform:uppercase;color:var(--yellow);
  margin-bottom:.9rem;
}
.sec-label::before{content:'';width:18px;height:1.5px;background:var(--yellow);flex-shrink:0}
.sec-title{font-size:clamp(1.7rem,3vw,2.4rem);font-weight:800;letter-spacing:-.025em;line-height:1.1;color:var(--white);margin-bottom:.9rem}
.sec-title .y{color:var(--yellow)}
.sec-sub{font-size:.93rem;font-weight:400;line-height:1.8;color:var(--gray2);max-width:500px}

.sec-head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:2rem;flex-wrap:wrap;margin-bottom:3rem}

/* ── SERVICES ── */
#services{background:var(--surface)}

.svc-grid{
  display:grid;grid-template-columns:repeat(3,1fr);
  border:1px solid var(--line2);border-radius:8px;overflow:hidden;
  background:var(--line);gap:1px;
}
.svc{
  background:var(--card);padding:1.8rem;position:relative;overflow:hidden;
  transition:background .2s;cursor:default;
}
.svc:hover{background:var(--card2)}
.svc::before{
  content:'';position:absolute;top:0;left:0;right:0;height:2px;
  background:var(--yellow);transform:scaleX(0);transform-origin:left;transition:transform .3s var(--ease);
}
.svc:hover::before{transform:scaleX(1)}

.svc-num{
  font-size:.68rem;font-weight:700;letter-spacing:.15em;color:var(--gray3);
  margin-bottom:1.2rem;
}
.svc-icon{
  width:42px;height:42px;background:var(--ya);border:1px solid rgba(244,196,0,.18);
  border-radius:var(--r);display:flex;align-items:center;justify-content:center;
  margin-bottom:1.1rem;transition:background .2s,border-color .2s;
}
.svc:hover .svc-icon{background:rgba(244,196,0,.18);border-color:rgba(244,196,0,.35)}
.svc-icon svg{width:21px;height:21px;stroke:var(--yellow);fill:none;stroke-width:1.75;stroke-linecap:round;stroke-linejoin:round}
.svc-name{font-size:.97rem;font-weight:700;color:var(--white);margin-bottom:.5rem;letter-spacing:-.01em}
.svc-desc{font-size:.83rem;line-height:1.72;color:var(--gray2)}
.svc-arr{
  display:inline-flex;align-items:center;gap:.3rem;margin-top:1rem;
  font-size:.73rem;font-weight:700;letter-spacing:.06em;color:var(--yellow);
  opacity:0;transform:translateX(-5px);transition:opacity .2s,transform .2s;
}
.svc-arr svg{width:12px;height:12px;stroke:currentColor;fill:none;stroke-width:2.5;stroke-linecap:round;stroke-linejoin:round}
.svc:hover .svc-arr{opacity:1;transform:translateX(0)}

/* ── NUMBERS ── */
#numbers{
  background:var(--yellow);padding:0;border-bottom:none;
}
.numbers-inner{
  display:grid;grid-template-columns:repeat(4,1fr);
  border-left:1px solid rgba(10,10,11,.12);
}
.num-block{
  padding:3rem 2rem;text-align:center;border-right:1px solid rgba(10,10,11,.12);
}
.num-val{font-size:2.6rem;font-weight:800;color:#0a0a0b;line-height:1;letter-spacing:-.03em}
.num-label{font-size:.73rem;font-weight:600;letter-spacing:.1em;text-transform:uppercase;color:rgba(10,10,11,.55);margin-top:.4rem}

/* ── ABOUT ── */
#about{background:var(--bg)}
.about-grid{display:grid;grid-template-columns:1fr 1fr;gap:5rem;align-items:start}

.about-checklist{display:flex;flex-direction:column;gap:.9rem;margin:2rem 0 2.5rem}
.ck{display:flex;gap:.85rem;align-items:flex-start}
.ck-icon{
  flex-shrink:0;margin-top:.2rem;width:20px;height:20px;
  background:var(--ya);border:1px solid rgba(244,196,0,.25);border-radius:3px;
  display:flex;align-items:center;justify-content:center;
}
.ck-icon svg{width:11px;height:11px;stroke:var(--yellow);fill:none;stroke-width:2.5;stroke-linecap:round;stroke-linejoin:round}
.ck-text{font-size:.9rem;font-weight:400;line-height:1.65;color:var(--gray2)}

.cert-tags{display:flex;flex-wrap:wrap;gap:.5rem;margin-top:2.5rem}
.ctag{
  padding:.35rem .85rem;background:var(--card);border:1px solid var(--line2);
  border-radius:20px;font-size:.73rem;font-weight:600;letter-spacing:.05em;color:var(--gray2);
  transition:border-color .18s,color .18s;
}
.ctag:hover,.ctag.y{border-color:rgba(244,196,0,.35);color:var(--yellow)}

/* company info panel */
.info-panel{
  background:var(--card);border:1px solid var(--line2);border-radius:8px;overflow:hidden;
}
.info-panel-top{
  padding:1.2rem 1.5rem;background:var(--surface);border-bottom:1px solid var(--line2);
  display:flex;align-items:center;justify-content:space-between;
}
.info-panel-title{font-size:.75rem;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--gray2)}
.info-panel-dot{width:8px;height:8px;border-radius:50%;background:var(--yellow);box-shadow:0 0 8px rgba(244,196,0,.5)}
.info-panel-body{padding:.5rem 0}
.ir{display:flex;justify-content:space-between;align-items:center;gap:1rem;padding:.7rem 1.5rem;border-bottom:1px solid var(--line)}
.ir:last-child{border-bottom:none}
.ir-k{font-size:.78rem;font-weight:500;color:var(--gray2)}
.ir-v{font-size:.85rem;font-weight:600;color:var(--white);text-align:right;line-height:1.5}
.ir-v.y{color:var(--yellow)}
.ir-v a{color:inherit}

/* ── WHY ── */
#why{background:var(--surface)}
.why-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:1px;background:var(--line);border:1px solid var(--line2);border-radius:8px;overflow:hidden}
.why-card{
  background:var(--card);padding:2rem;
  transition:background .2s;
}
.why-card:hover{background:var(--card2)}
.why-card-num{
  font-size:.68rem;font-weight:700;letter-spacing:.15em;color:var(--yellow);margin-bottom:1rem;display:flex;align-items:center;gap:.5rem;
}
.why-card-num::after{content:'';flex:1;height:1px;background:var(--line2)}
.why-card-title{font-size:1rem;font-weight:700;color:var(--white);margin-bottom:.5rem;letter-spacing:-.01em}
.why-card-desc{font-size:.85rem;line-height:1.72;color:var(--gray2)}

/* ── CONTACT ── */
#contact{background:var(--bg)}
.contact-grid{display:grid;grid-template-columns:380px 1fr;gap:4rem;align-items:start}

.cinfo{display:flex;flex-direction:column;gap:1.2rem}
.ci{display:flex;gap:.85rem;align-items:flex-start}
.ci-icon{
  flex-shrink:0;width:38px;height:38px;
  background:var(--ya);border:1px solid rgba(244,196,0,.2);border-radius:var(--r);
  display:flex;align-items:center;justify-content:center;
}
.ci-icon svg{width:17px;height:17px;stroke:var(--yellow);fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.ci-label{font-size:.67rem;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--gray2);margin-bottom:.2rem}
.ci-val{font-size:.9rem;font-weight:500;color:var(--gray1);line-height:1.55}
.ci-val a{color:var(--yellow);transition:opacity .18s}
.ci-val a:hover{opacity:.75}

.legal-panel{
  margin-top:1.5rem;background:var(--card);border:1px solid var(--line2);border-radius:8px;overflow:hidden;
}
.legal-head{
  padding:.85rem 1.3rem;background:var(--surface);border-bottom:1px solid var(--line);
  display:flex;align-items:center;gap:.5rem;
  font-size:.68rem;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--yellow);
}
.legal-head svg{width:12px;height:12px;fill:var(--yellow)}
.lrow{display:flex;justify-content:space-between;gap:1rem;padding:.6rem 1.3rem;border-bottom:1px solid var(--line);font-size:.82rem}
.lrow:last-child{border-bottom:none}
.lk{color:var(--gray2);font-weight:500}
.lv{color:var(--white);font-weight:600;font-variant-numeric:tabular-nums}

/* form */
.cform{background:var(--card);border:1px solid var(--line2);border-radius:8px;overflow:hidden}
.cform-head{padding:1.4rem 1.8rem;background:var(--surface);border-bottom:1px solid var(--line)}
.cform-head-title{font-size:1rem;font-weight:700;color:var(--white);margin-bottom:.2rem;letter-spacing:-.01em}
.cform-head-sub{font-size:.8rem;color:var(--gray2)}
.cform-body{padding:1.6rem 1.8rem;display:flex;flex-direction:column;gap:1rem}
.frow{display:grid;grid-template-columns:1fr 1fr;gap:1rem}
.fg{display:flex;flex-direction:column;gap:.35rem}
.fg label{font-size:.68rem;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--gray2)}
.fg input,.fg textarea,.fg select{
  background:var(--bg);border:1px solid var(--line2);border-radius:var(--r);
  padding:.7rem .95rem;font-family:var(--font);font-size:.88rem;color:var(--white);outline:none;
  transition:border-color .18s,box-shadow .18s;-webkit-appearance:none;
}
.fg input:focus,.fg textarea:focus,.fg select:focus{
  border-color:var(--yellow);box-shadow:0 0 0 3px rgba(244,196,0,.07);
}
.fg textarea{min-height:108px;resize:vertical}
.fg input::placeholder,.fg textarea::placeholder{color:var(--gray3)}
.fg select option{background:var(--card)}
.submit-btn{
  width:100%;padding:.85rem;background:var(--yellow);color:#0a0a0b;
  font-family:var(--font);font-size:.9rem;font-weight:700;letter-spacing:.01em;
  border:none;border-radius:var(--r);cursor:pointer;
  display:flex;align-items:center;justify-content:center;gap:.5rem;
  transition:background .18s,transform .18s;
}
.submit-btn:hover{background:var(--yellow2);transform:translateY(-1px)}
.submit-btn svg{width:15px;height:15px;flex-shrink:0}

/* ── FOOTER ── */
footer{background:var(--surface);border-top:1px solid var(--line)}
.footer-line{height:2px;background:linear-gradient(90deg,var(--yellow) 200px,transparent)}
.footer-grid{
  display:grid;grid-template-columns:1.8fr 1fr 1fr 1fr;gap:3rem;
  padding:3.5rem 0 2.5rem;border-bottom:1px solid var(--line);
}
.fbrand-top{display:flex;align-items:center;gap:.75rem;margin-bottom:.9rem}
.fbrand-top img{height:32px;filter:invert(1)brightness(1.05);opacity:.75}
.fbrand-name{font-size:1rem;font-weight:800;color:var(--white)}
.fbrand-name span{color:var(--yellow)}
.fbrand-desc{font-size:.82rem;line-height:1.72;color:var(--gray2);max-width:260px}
.fcol h4{font-size:.65rem;font-weight:700;letter-spacing:.16em;text-transform:uppercase;color:var(--gray2);margin-bottom:1rem;padding-bottom:.5rem;border-bottom:1px solid var(--line)}
.fcol ul{display:flex;flex-direction:column;gap:.45rem}
.fcol ul a{font-size:.83rem;color:var(--gray2);transition:color .18s;display:flex;align-items:center;gap:.35rem}
.fcol ul a::before{content:'›';color:var(--yellow);font-size:.95rem;line-height:1}
.fcol ul a:hover{color:var(--white)}
.footer-bottom{
  padding:1.4rem 0;display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:.5rem;
  font-size:.75rem;color:var(--gray2);
}
.footer-bottom a{color:var(--gray2);transition:color .18s}
.footer-bottom a:hover{color:var(--yellow)}

/* ── REVEAL ── */
.rv{opacity:0;transform:translateY(18px);transition:opacity .55s var(--ease),transform .55s var(--ease)}
.rv.in{opacity:1;transform:translateY(0)}
.rv-d1{transition-delay:.07s}
.rv-d2{transition-delay:.14s}
.rv-d3{transition-delay:.21s}

/* ── RESPONSIVE ── */
@media(max-width:1020px){
  .hero-inner{grid-template-columns:1fr;gap:3rem}
  .hero-card{max-width:480px}
  .about-grid{grid-template-columns:1fr;gap:3rem}
  .contact-grid{grid-template-columns:1fr;gap:3rem}
  .svc-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:2rem}
}
@media(max-width:768px){
  .nav-links,.nav-sep,.nav-cta{display:none}
  .hamburger{display:flex}
  .numbers-inner{grid-template-columns:repeat(2,1fr)}
  .why-grid{grid-template-columns:1fr}
  .frow{grid-template-columns:1fr}
  .topbar-inner{gap:.75rem}
}
@media(max-width:540px){
  .svc-grid{grid-template-columns:1fr}
  .hero-kpis{gap:1.5rem}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;text-align:center}
}