/* ============================================
   ЭнергоПромСтрой v3 — Clean Corporate
   Turner + Suffolk inspired
   ============================================ */
:root {
  --orange: #E8710A;
  --orange-dark: #C45E06;
  --orange-light: #FF9A3E;
  --navy: #0F1B2D;
  --navy-mid: #1B2A4A;
  --navy-light: #2D4270;
  --bg: #F7F8FA;
  --bg-alt: #EDEEF2;
  --white: #FFFFFF;
  --text: #1A1A2E;
  --text-2: #5A6578;
  --text-3: #8C95A6;
  --border: #E2E5EC;
  --shadow-sm: 0 1px 3px rgba(0,0,0,.04);
  --shadow: 0 4px 20px rgba(0,0,0,.07);
  --shadow-lg: 0 16px 48px rgba(0,0,0,.1);
  --r: 16px;
  --r-sm: 10px;
  --t: .3s cubic-bezier(.4,0,.2,1);
}
*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:80px}
body{font-family:'Inter',system-ui,sans-serif;background:var(--bg);color:var(--text);line-height:1.7;overflow-x:hidden;-webkit-font-smoothing:antialiased}
.container{max-width:1180px;margin:0 auto;padding:0 24px}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}

/* ── SCROLL PROGRESS ── */
.scroll-progress{position:fixed;top:0;left:0;height:3px;background:linear-gradient(90deg,var(--orange),var(--orange-light));z-index:9999;width:0;transition:width .1s linear}

/* ── NAV ── */
.nav{position:fixed;top:0;left:0;right:0;z-index:1000;padding:16px 0;background:rgba(255,255,255,.97);backdrop-filter:blur(20px);border-bottom:1px solid transparent;transition:var(--t)}
.nav.scrolled{padding:10px 0;border-color:var(--border);box-shadow:0 2px 12px rgba(0,0,0,.06)}
.nav__inner{display:flex;align-items:center;justify-content:space-between}
.nav__logo img{height:64px;transition:var(--t)}
.nav.scrolled .nav__logo img{height:48px}
.nav__menu{display:flex;list-style:none;gap:36px;align-items:center}
.nav__menu a{font-size:14px;font-weight:500;color:var(--text-2);transition:var(--t);position:relative}
.nav__menu a:not(.nav__cta):hover{color:var(--orange)}
.nav__menu a:not(.nav__cta)::after{content:'';position:absolute;bottom:-4px;left:0;width:0;height:2px;background:var(--orange);transition:var(--t);border-radius:1px}
.nav__menu a:not(.nav__cta):hover::after,.nav__menu a:not(.nav__cta).active::after{width:100%}
.nav__cta{background:var(--orange)!important;color:var(--white)!important;padding:10px 24px;border-radius:var(--r-sm);font-weight:600!important;box-shadow:0 2px 8px rgba(232,113,10,.25);transition:var(--t)}
.nav__cta:hover{background:var(--orange-dark)!important;transform:translateY(-1px);box-shadow:0 4px 16px rgba(232,113,10,.35)}
.nav__toggle{display:none;flex-direction:column;gap:5px;background:none;border:none;cursor:pointer;padding:4px}
.nav__toggle span{width:24px;height:2px;background:var(--text);transition:var(--t);border-radius:1px}

/* ── BUTTONS ── */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;padding:14px 32px;border-radius:var(--r-sm);font-weight:600;font-size:15px;cursor:pointer;transition:var(--t);border:none;font-family:inherit}
.btn--primary{background:linear-gradient(135deg,var(--orange),var(--orange-dark));color:var(--white);box-shadow:0 4px 16px rgba(232,113,10,.3)}
.btn--primary:hover{transform:translateY(-2px);box-shadow:0 8px 28px rgba(232,113,10,.4)}
.btn--ghost{background:rgba(255,255,255,.1);color:var(--white);border:1.5px solid rgba(255,255,255,.25);backdrop-filter:blur(4px)}
.btn--ghost:hover{background:rgba(255,255,255,.2);border-color:rgba(255,255,255,.5)}
.btn--outline-light{background:transparent;color:var(--white);border:1.5px solid rgba(255,255,255,.3)}
.btn--outline-light:hover{background:rgba(255,255,255,.1);border-color:rgba(255,255,255,.6)}
.btn--lg{padding:18px 40px;font-size:16px}
.btn--full{width:100%}

/* ── TAG ── */
.tag{display:inline-block;padding:5px 16px;background:rgba(232,113,10,.08);border:1px solid rgba(232,113,10,.15);border-radius:100px;font-size:11px;color:var(--orange);font-weight:700;text-transform:uppercase;letter-spacing:2px;margin-bottom:16px}

/* ── HERO ── */
.hero{position:relative;min-height:100vh;display:flex;align-items:center;overflow:hidden;background:var(--navy)}
.hero__bg{position:absolute;inset:0}
.hero__bg img{width:100%;height:100%;object-fit:cover;opacity:.25;filter:saturate(.6)}
.hero__overlay{position:absolute;inset:0;background:linear-gradient(135deg,rgba(15,27,45,.92) 0%,rgba(27,42,74,.85) 50%,rgba(15,27,45,.95) 100%)}
.hero__content{position:relative;z-index:2;padding:120px 0 70px;display:flex;flex-direction:column;justify-content:center;min-height:calc(100vh - 70px)}
.hero__tag{font-size:14px;font-weight:500;color:var(--orange-light);letter-spacing:1px;margin-bottom:24px;text-transform:uppercase}
.hero h1{font-size:clamp(36px,5.5vw,72px);font-weight:900;line-height:1.05;color:var(--white);margin-bottom:28px;letter-spacing:-2px}
.hero__accent{color:var(--orange-light)}
.hero__desc{font-size:18px;color:rgba(255,255,255,.6);line-height:1.8;margin-bottom:40px;max-width:540px}
.hero__actions{display:flex;gap:16px;flex-wrap:wrap}
/* Hero stats inline */
.hero__stats{display:flex;flex-direction:row;align-items:center;justify-content:space-between;gap:0;margin-top:48px;padding-top:28px;border-top:1px solid rgba(255,255,255,.1);width:100%}
.hero__stat{flex:1 1 0;text-align:center;min-width:0}
.hero__stat .stats__num{font-size:40px;font-weight:900;color:var(--orange-light);line-height:1;display:inline}
.hero__stat .stats__plus{font-size:26px;font-weight:700;color:var(--orange-light)}
.hero__stat-label{display:block;font-size:12px;color:rgba(255,255,255,.45);margin-top:4px;font-weight:500;text-transform:uppercase;letter-spacing:.5px}
.hero__stat-divider{width:1px;height:40px;background:rgba(255,255,255,.1);flex-shrink:0}

.hero__scroll{position:absolute;bottom:32px;left:50%;transform:translateX(-50%);z-index:2}
.hero__scroll a{display:block;width:26px;height:42px;border:2px solid rgba(255,255,255,.2);border-radius:13px;position:relative}
.hero__scroll span{position:absolute;top:7px;left:50%;width:4px;height:7px;margin-left:-2px;background:var(--orange-light);border-radius:2px;animation:scroll-bob 1.8s infinite}
@keyframes scroll-bob{0%{opacity:1;transform:translateY(0)}100%{opacity:0;transform:translateY(14px)}}

/* stats strip removed — now inside hero */

/* ── SECTION GENERIC ── */
.section{padding:100px 0}
.section__header{text-align:center;margin-bottom:64px}
.section__header h2{font-size:clamp(28px,3.5vw,44px);font-weight:800;color:var(--text);margin-bottom:14px;letter-spacing:-.5px}
.section__desc{font-size:16px;color:var(--text-2);max-width:500px;margin:0 auto}

/* ── ABOUT ── */
.about{background:var(--white)}
.about__grid{display:grid;grid-template-columns:1fr 1fr;gap:72px;align-items:center}
.about__image{position:relative;border-radius:var(--r);overflow:hidden}
.about__image img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--r)}
.about__image-badge{position:absolute;bottom:20px;left:20px;background:var(--orange);color:var(--white);padding:12px 20px;border-radius:var(--r-sm);font-size:14px;font-weight:600;box-shadow:0 4px 16px rgba(232,113,10,.3)}
.about__image-badge span{font-size:28px;font-weight:900;display:block;line-height:1}
.about__text h2{font-size:clamp(26px,3vw,38px);font-weight:800;line-height:1.2;margin-bottom:20px;letter-spacing:-.3px}
.about__text>p{font-size:16px;color:var(--text-2);margin-bottom:28px;line-height:1.8}
.about__checks{list-style:none;margin-bottom:32px}
.about__checks li{display:flex;align-items:flex-start;gap:12px;padding:10px 0;font-size:15px;color:var(--text);font-weight:500}
.about__checks svg{color:var(--orange);flex-shrink:0;margin-top:2px}

/* ── SERVICES ── */
.services{background:var(--bg)}
.services__grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.svc{background:var(--white);border:1px solid var(--border);border-radius:var(--r);padding:40px 32px;transition:var(--t);position:relative;overflow:hidden}
.svc::before{content:'';position:absolute;top:0;left:0;width:4px;height:100%;background:var(--orange);transform:scaleY(0);transform-origin:top;transition:var(--t)}
.svc:hover::before{transform:scaleY(1)}
.svc:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg);border-color:rgba(232,113,10,.2)}
.svc__num{font-size:56px;font-weight:900;color:rgba(232,113,10,.08);line-height:1;margin-bottom:12px;transition:var(--t)}
.svc:hover .svc__num{color:rgba(232,113,10,.2)}
.svc__icon{width:48px;height:48px;color:var(--orange);margin-bottom:20px;transition:var(--t)}
.svc:hover .svc__icon{transform:scale(1.1)}
.svc__icon svg{width:100%;height:100%}
.svc h3{font-size:20px;font-weight:700;margin-bottom:12px}
.svc>p{font-size:14px;color:var(--text-2);line-height:1.7}
.svc--accent{border-color:rgba(232,113,10,.3);background:linear-gradient(135deg,rgba(232,113,10,.03),var(--white))}
.svc--accent::before{transform:scaleY(1)}
.svc__badge{position:absolute;top:16px;right:16px;padding:5px 14px;background:var(--orange);color:var(--white);font-size:11px;font-weight:700;border-radius:100px;text-transform:uppercase;letter-spacing:.5px}
.aos-ready .svc[data-aos]{opacity:0;transform:translateY(24px)}
.aos-ready .svc[data-aos].visible{opacity:1;transform:translateY(0)}

/* ── PROJECTS ── */
.projects{background:var(--white)}
.projects__grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-bottom:72px}
.proj{position:relative;border-radius:var(--r);overflow:hidden;aspect-ratio:4/3;cursor:pointer}
.proj--large{grid-column:span 2;aspect-ratio:21/9}
.proj img{width:100%;height:100%;object-fit:cover;transition:transform .6s ease}
.proj:hover img{transform:scale(1.06)}
.proj__overlay{position:absolute;inset:0;background:linear-gradient(0deg,rgba(15,27,45,.85) 0%,rgba(15,27,45,.2) 50%,transparent 100%);display:flex;flex-direction:column;justify-content:flex-end;padding:28px;transition:var(--t)}
.proj:hover .proj__overlay{background:linear-gradient(0deg,rgba(15,27,45,.9) 0%,rgba(15,27,45,.3) 60%,transparent 100%)}
.proj__year{display:inline-block;padding:3px 12px;background:var(--orange);color:var(--white);border-radius:4px;font-size:11px;font-weight:700;margin-bottom:10px;width:fit-content}
.proj h3{font-size:18px;font-weight:700;color:var(--white);margin-bottom:4px}
.proj p{font-size:13px;color:rgba(255,255,255,.6)}
.aos-ready .proj[data-aos]{opacity:0;transform:translateY(20px)}
.aos-ready .proj[data-aos].visible{opacity:1;transform:translateY(0)}

/* Substations */
.substations{margin-top:24px}
.substations__title{text-align:center;font-size:22px;font-weight:700;margin-bottom:32px;color:var(--text)}
.substations__grid{display:grid;grid-template-columns:repeat(5,1fr);gap:12px}
.sub{background:var(--bg);border:1px solid var(--border);border-radius:var(--r-sm);padding:28px 16px;text-align:center;transition:var(--t)}
.sub:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:rgba(232,113,10,.3)}
.sub__voltage{font-size:36px;font-weight:900;color:var(--orange);line-height:1}
.sub__voltage span{font-size:16px;font-weight:600;color:var(--text-3);margin-left:2px}
.sub__name{font-size:13px;font-weight:600;color:var(--text);margin-top:6px}
.aos-ready .sub[data-aos]{opacity:0;transform:translateY(16px)}
.aos-ready .sub[data-aos].visible{opacity:1;transform:translateY(0)}

/* ── GALLERY ── */
.gallery{background:var(--bg)}
.gallery__grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
.gallery__item{position:relative;border-radius:var(--r-sm);overflow:hidden;aspect-ratio:4/3;cursor:pointer}
.gallery__item--wide{grid-column:span 2;aspect-ratio:16/9}
.gallery__item img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease,filter .5s ease}
.gallery__item:hover img{transform:scale(1.06);filter:brightness(.7)}
.gallery__caption{position:absolute;bottom:0;left:0;right:0;padding:16px 20px;background:linear-gradient(0deg,rgba(0,0,0,.7),transparent);color:var(--white);font-size:14px;font-weight:600;opacity:0;transform:translateY(8px);transition:var(--t)}
.gallery__item:hover .gallery__caption{opacity:1;transform:translateY(0)}
.aos-ready .gallery__item[data-aos]{opacity:0;transform:translateY(16px)}
.aos-ready .gallery__item[data-aos].visible{opacity:1;transform:translateY(0)}

/* ── WHY US ── */
.whyus{background:var(--white)}
.whyus__grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;margin-bottom:72px}
.whyus__card{text-align:center;padding:40px 24px;background:var(--bg);border-radius:var(--r);transition:var(--t);border:1px solid transparent}
.whyus__card:hover{background:var(--white);border-color:var(--border);transform:translateY(-6px);box-shadow:var(--shadow-lg)}
.whyus__icon{width:56px;height:56px;margin:0 auto 20px;background:linear-gradient(135deg,rgba(232,113,10,.12),rgba(232,113,10,.04));border-radius:14px;display:flex;align-items:center;justify-content:center;color:var(--orange);transition:var(--t)}
.whyus__card:hover .whyus__icon{background:var(--orange);color:var(--white);transform:scale(1.1)}
.whyus__icon svg{width:28px;height:28px}
.whyus__card h3{font-size:16px;font-weight:700;margin-bottom:8px}
.whyus__card p{font-size:14px;color:var(--text-2);line-height:1.7}
.aos-ready .whyus__card[data-aos]{opacity:0;transform:translateY(24px)}
.aos-ready .whyus__card[data-aos].visible{opacity:1;transform:translateY(0)}

.whyus__clients{text-align:center}
.whyus__clients h3{font-size:20px;font-weight:700;margin-bottom:32px}
.whyus__clients-list{display:flex;justify-content:center;gap:48px;flex-wrap:wrap}
.whyus__client{display:flex;flex-direction:column;align-items:center;gap:12px;color:var(--text-2)}
.whyus__client svg{width:40px;height:40px;color:var(--orange);transition:var(--t)}
.whyus__client:hover svg{transform:scale(1.15)}
.whyus__client span{font-size:14px;font-weight:600}

/* ── CTA ── */
.cta{padding:80px 0;background:linear-gradient(135deg,var(--navy) 0%,var(--navy-mid) 100%);text-align:center;position:relative;overflow:hidden}
.cta::before{content:'';position:absolute;top:-50%;right:-20%;width:500px;height:500px;background:radial-gradient(circle,rgba(232,113,10,.12),transparent 70%);pointer-events:none}
.cta__inner{position:relative;z-index:2}
.cta h2{font-size:clamp(28px,4vw,44px);font-weight:800;color:var(--white);margin-bottom:12px}
.cta p{font-size:17px;color:rgba(255,255,255,.55);margin-bottom:36px}
.cta__actions{display:flex;gap:16px;justify-content:center;flex-wrap:wrap}

/* ── CONTACTS ── */
.contacts{background:var(--bg)}
.contacts__grid{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:start}
.contacts__card{display:flex;flex-direction:column;gap:4px}
.contacts__item{display:flex;gap:16px;padding:16px 0;border-bottom:1px solid var(--border)}
.contacts__item svg{width:22px;height:22px;color:var(--orange);flex-shrink:0;margin-top:2px}
.contacts__item strong{font-size:12px;color:var(--text-3);text-transform:uppercase;letter-spacing:.5px;display:block;margin-bottom:2px}
.contacts__item p{font-size:15px;color:var(--text);line-height:1.5}
.contacts__item a{color:var(--orange);font-weight:500;transition:var(--t)}
.contacts__item a:hover{color:var(--orange-dark)}
.contacts__director{margin-top:24px;padding:24px;background:linear-gradient(135deg,var(--navy),var(--navy-light));border-radius:var(--r-sm);color:var(--white)}
.contacts__director span{font-size:11px;color:rgba(255,255,255,.45);text-transform:uppercase;letter-spacing:1.5px;display:block;margin-bottom:4px}
.contacts__director strong{font-size:19px;font-weight:700}

/* Form */
.form{background:var(--white);border:1px solid var(--border);border-radius:var(--r);padding:40px;box-shadow:var(--shadow);position:relative;overflow:hidden}
.form::before{content:'';position:absolute;top:0;left:0;right:0;height:4px;background:linear-gradient(90deg,var(--orange),var(--orange-light))}
.form h3{font-size:22px;font-weight:800;margin-bottom:28px}
.form__group{margin-bottom:14px}
.form__group input,.form__group textarea{width:100%;padding:14px 18px;background:var(--bg);border:1.5px solid var(--border);border-radius:var(--r-sm);color:var(--text);font-size:15px;font-family:inherit;outline:none;transition:var(--t);resize:vertical}
.form__group input:focus,.form__group textarea:focus{border-color:var(--orange);box-shadow:0 0 0 3px rgba(232,113,10,.08);background:var(--white)}
.form__group input::placeholder,.form__group textarea::placeholder{color:var(--text-3)}
.form__note{text-align:center;font-size:12px;color:var(--text-3);margin-top:12px}

/* ── FOOTER ── */
.footer{background:var(--navy);color:rgba(255,255,255,.6);padding:64px 0 0}
.footer__inner{display:grid;grid-template-columns:2fr 1fr 1fr 1.5fr;gap:48px;padding-bottom:48px}
.footer__logo{font-size:22px;font-weight:800;color:var(--white);margin-bottom:6px}
.footer__logo span{color:var(--orange-light)}
.footer__brand>p{font-size:13px;margin-bottom:8px}
.footer__legal{font-size:12px;color:rgba(255,255,255,.3)}
.footer__col h4{font-size:12px;font-weight:700;color:var(--white);text-transform:uppercase;letter-spacing:1px;margin-bottom:16px}
.footer__col a{display:block;font-size:14px;color:rgba(255,255,255,.45);padding:4px 0;transition:var(--t)}
.footer__col a:hover{color:var(--orange-light);padding-left:4px}
.footer__col p{font-size:14px;margin-bottom:4px}
.footer__col p a{display:inline;padding:0;color:var(--orange-light)}
.footer__bottom{border-top:1px solid rgba(255,255,255,.07);padding:20px 0;text-align:center;font-size:13px;color:rgba(255,255,255,.25)}

/* ── ANIMATIONS ── */
[data-aos]{transition:opacity .6s ease,transform .6s ease}

/* ── RESPONSIVE ── */
@media(max-width:1024px){
  .about__grid{grid-template-columns:1fr;gap:40px}
  .about__image{max-width:560px}
  .whyus__grid{grid-template-columns:repeat(2,1fr)}
  .substations__grid{grid-template-columns:repeat(3,1fr)}
}
@media(max-width:768px){
  .nav__menu{display:none;position:absolute;top:100%;left:0;right:0;background:rgba(255,255,255,.98);backdrop-filter:blur(20px);flex-direction:column;padding:24px;gap:16px;border-bottom:1px solid var(--border);box-shadow:var(--shadow-lg)}
  .nav__menu.open{display:flex}
  .nav__toggle{display:flex}
  .hero h1{font-size:32px;letter-spacing:-1px}
  .hero__content{padding:120px 0 80px}
  .hero__stats{flex-wrap:wrap;gap:16px}
  .hero__stat{flex:0 0 calc(50% - 8px)}
  .hero__stat-divider{display:none}
  .hero__stat .stats__num{font-size:34px}
  .services__grid{grid-template-columns:1fr}
  .projects__grid{grid-template-columns:1fr 1fr}
  .proj--large{grid-column:span 2}
  .whyus__grid{grid-template-columns:1fr 1fr}
  .contacts__grid{grid-template-columns:1fr}
  .footer__inner{grid-template-columns:1fr 1fr}
  .gallery__grid{grid-template-columns:1fr 1fr}
  .gallery__item--wide{grid-column:span 2}
  .substations__grid{grid-template-columns:repeat(2,1fr)}
  .section{padding:72px 0}
  .cta__actions{flex-direction:column;align-items:center}
  .cta__actions .btn{width:100%;max-width:320px}
}
@media(max-width:480px){
  .hero h1{font-size:28px}
  .hero__actions{flex-direction:column}
  .hero__actions .btn{width:100%;justify-content:center}
  .stats__num{font-size:36px}
  .projects__grid{grid-template-columns:1fr}
  .proj--large{grid-column:span 1;aspect-ratio:4/3}
  .whyus__grid{grid-template-columns:1fr}
  .whyus__clients-list{flex-direction:column;gap:24px}
  .substations__grid{grid-template-columns:1fr}
  .gallery__grid{grid-template-columns:1fr}
  .gallery__item--wide{grid-column:span 1}
  .footer__inner{grid-template-columns:1fr}
  .form{padding:24px 20px}
  .section{padding:56px 0}
}