/* TEG Energy — service site. Layout system adapted from the TurfVision site (turfvision.bg). */
:root{
  --teal:#027B7A;          /* brand teal */
  --teal-2:#2A9C9A;        /* secondary teal */
  --teal-deep:#014a49;     /* darker teal for dark bands */
  --teal-tint:#e8f4f3;     /* pale wash */
  --orange:#DE622C;        /* brand orange (buttons, accents on dark) */
  --orange-dark:#B54C1C;   /* orange for small text on white (AA contrast) */
  --orange-light:#F4925F;  /* orange for text on dark backgrounds */
  --ink:#111716;           /* near-black */
  --muted:#4f5d5b;
  --line:#dbe7e5;
  --soft:#f7fbfa;
  --white:#ffffff;
  --radius:14px;
  --shadow:0 10px 30px rgba(2,74,73,.12);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:80px}
body{font-family:'Montserrat',system-ui,-apple-system,sans-serif;color:var(--ink);background:var(--white);line-height:1.65;font-size:16.5px;
  /* lang="bg" makes Montserrat switch to Bulgarian-style Cyrillic glyphs (д→g, т→m shapes). Standard forms kept for readability; delete this line to enable the Bulgarian forms. */
  font-feature-settings:"locl" 0}
input,select,textarea,button{font-feature-settings:"locl" 0}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
h1,h2,h3{font-family:'Montserrat',system-ui,sans-serif;font-weight:800;line-height:1.18;color:var(--ink);letter-spacing:-.01em}
.wrap{max-width:1160px;margin:0 auto;padding:0 24px}
section{padding:88px 0}
.eyebrow{display:inline-block;font-size:12.5px;font-weight:800;letter-spacing:.2em;text-transform:uppercase;color:var(--orange-dark);margin-bottom:14px}
.section-title{font-size:clamp(26px,3.6vw,40px);margin-bottom:16px}
.section-title em{font-style:normal;color:var(--teal)}
.section-lead{max-width:700px;color:var(--muted);font-size:18px}
.btn{display:inline-flex;align-items:center;gap:10px;padding:14px 30px;border-radius:999px;font-weight:700;font-size:16px;transition:.25s;cursor:pointer;border:none;font-family:inherit;line-height:1.3}
.btn svg{width:18px;height:18px;flex-shrink:0}
.btn-orange{background:var(--orange);color:#fff;box-shadow:0 6px 20px rgba(222,98,44,.32)}
.btn-orange:hover{background:#c5531f;transform:translateY(-2px)}
.btn-ghost{border:2px solid rgba(255,255,255,.75);color:#fff}
.btn-ghost:hover{background:rgba(255,255,255,.15)}
.btn-teal{background:var(--teal);color:#fff}
.btn-teal:hover{background:var(--teal-deep);transform:translateY(-2px)}

/* ---------- header ---------- */
header{position:fixed;inset:0 0 auto 0;z-index:50;background:rgba(255,255,255,.97);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;height:76px}
.brand{display:flex;align-items:center}
.brand img{height:46px;width:auto}
nav.menu{display:flex;gap:26px;align-items:center}
nav.menu a{font-weight:600;font-size:14.5px;color:var(--ink);position:relative}
nav.menu a:not(.btn):after{content:"";position:absolute;left:0;bottom:-6px;width:0;height:2px;background:var(--orange);transition:.25s}
nav.menu a:not(.btn):hover:after{width:100%}
nav.menu .btn{padding:10px 20px;font-size:14.5px;color:#fff}
.burger{display:none;background:none;border:none;font-size:28px;color:var(--teal);cursor:pointer;line-height:1}

/* ---------- hero (flex column, stats bar in normal flow) ---------- */
.hero{min-height:100vh;display:flex;flex-direction:column;position:relative;
  background:linear-gradient(180deg,rgba(6,22,21,.62) 0%,rgba(6,22,21,.38) 45%,rgba(6,22,21,.78) 100%),
  url('img/hero-belashtitsa-aerial.jpg') center 55%/cover no-repeat;padding:140px 0 0}
.hero > .wrap{position:relative;z-index:2;flex:1;display:flex;flex-direction:column;justify-content:center;width:100%}
.hero-eyebrow{align-self:flex-start;background:rgba(0,0,0,.32);padding:8px 18px;border-radius:999px;font-size:12.5px;font-weight:800;letter-spacing:.2em;text-transform:uppercase;margin-bottom:26px;color:var(--orange-light)}
.hero h1{color:#fff;font-size:clamp(34px,5.4vw,60px);max-width:860px;margin-bottom:22px}
.hero h1 em{font-style:normal;color:var(--orange-light)}
.hero p{color:rgba(255,255,255,.9);font-size:clamp(17px,1.9vw,20px);max-width:660px;margin-bottom:38px;font-weight:500}
.hero-ctas{display:flex;gap:16px;flex-wrap:wrap}
.hero-stats{margin-top:56px;background:rgba(1,40,39,.68);backdrop-filter:blur(6px);border-top:1px solid rgba(255,255,255,.15)}
.hero-stats .wrap{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;padding-top:22px;padding-bottom:22px}
.hstat{text-align:center;color:#fff}
.hstat b{display:block;font-size:30px;font-weight:800;color:var(--orange-light);line-height:1.2}
.hstat span{font-size:12.5px;opacity:.9;letter-spacing:.05em;text-transform:uppercase;font-weight:600}
.hero-note{font-size:11.5px;color:rgba(255,255,255,.6);text-align:center;padding:0 0 12px}

/* ---------- benefits (dark band with photo) ---------- */
.dark{background:linear-gradient(180deg,rgba(1,48,47,.94) 0%,rgba(1,40,39,.9) 50%,rgba(10,20,19,.96) 100%),url('img/biz-voyvodinovo-roof.jpg') center 40%/cover no-repeat;color:#fff;position:relative;overflow:hidden}
.dark:before{content:"";position:absolute;right:-140px;top:-140px;width:440px;height:440px;border-radius:50%;background:radial-gradient(circle,rgba(222,98,44,.28),transparent 70%)}
.dark .eyebrow{color:var(--orange-light)}
.dark .section-title,.dark h3{color:#fff}
.dark .section-title em{color:var(--orange-light)}
.dark .section-lead{color:rgba(255,255,255,.82)}
.ben-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:44px;position:relative;z-index:2}
.ben{background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.16);border-radius:var(--radius);padding:28px 24px}
.ben .ic{width:48px;height:48px;border-radius:12px;background:var(--orange);display:flex;align-items:center;justify-content:center;margin-bottom:18px}
.ben .ic svg{width:24px;height:24px;stroke:#fff}
.ben h3{font-size:17.5px;margin-bottom:8px}
.ben p{font-size:14.5px;color:rgba(255,255,255,.8)}
.split{display:grid;grid-template-columns:460px 1fr;gap:56px;align-items:center;margin-top:70px;position:relative;z-index:2}
.split .photo{border-radius:var(--radius);overflow:hidden;box-shadow:0 20px 50px rgba(0,0,0,.35);margin:0}
.split .photo img{width:100%;height:480px;object-fit:cover}
.split .photo figcaption{background:rgba(0,0,0,.4);color:rgba(255,255,255,.88);font-size:12.5px;padding:10px 16px}
.split h3{font-size:clamp(21px,2.4vw,27px);margin-bottom:14px}
.split p{color:rgba(255,255,255,.82);font-size:15.5px;margin-bottom:14px}
.place-list{list-style:none;display:grid;grid-template-columns:1fr 1fr;gap:10px 24px;margin:22px 0 6px}
.place-list li{font-size:15px;font-weight:600;display:flex;gap:10px;align-items:flex-start;color:rgba(255,255,255,.94)}
.place-list li:before{content:"✓";color:var(--orange-light);font-weight:800}

/* ---------- services ---------- */
.svc-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px;margin-top:50px}
.svc{border:1px solid var(--line);border-radius:var(--radius);padding:32px 28px;transition:.3s;background:#fff;display:flex;flex-direction:column}
.svc:hover{transform:translateY(-6px);box-shadow:var(--shadow);border-color:var(--teal-2)}
.svc .ic{width:50px;height:50px;border-radius:12px;background:var(--teal-tint);display:flex;align-items:center;justify-content:center;margin-bottom:18px}
.svc .ic svg{width:26px;height:26px;stroke:var(--teal)}
.svc h3{font-size:19px;margin-bottom:10px}
.svc p{color:var(--muted);font-size:15px;margin-bottom:14px}
.svc ul{list-style:none;display:grid;gap:8px;margin-top:auto}
.svc li{font-size:14.5px;display:flex;gap:10px;align-items:flex-start;font-weight:500}
.svc li:before{content:"✓";color:var(--orange);font-weight:800;flex-shrink:0}

/* ---------- process ---------- */
.process{background:var(--teal-tint)}
.steps{display:grid;grid-template-columns:repeat(5,1fr);gap:18px;margin-top:48px;counter-reset:s}
.step{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:28px 22px;position:relative}
.step b{display:block;font-size:34px;font-weight:800;color:var(--orange);line-height:1;margin-bottom:14px}
.step h3{font-size:16.5px;margin-bottom:8px}
.step p{font-size:14.2px;color:var(--muted)}
.process-note{margin-top:30px;background:#fff;border:1px solid var(--line);border-left:4px solid var(--orange);border-radius:var(--radius);padding:22px 26px;font-size:15.5px;max-width:860px}
.process-note a{color:var(--teal);font-weight:700;white-space:nowrap}

/* ---------- projects ---------- */
.proj-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px;margin-top:50px}
.proj{border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);background:#fff;display:flex;flex-direction:column;transition:.3s}
.proj:hover{transform:translateY(-6px);box-shadow:var(--shadow)}
.proj .ph{height:220px;overflow:hidden;position:relative}
.proj .ph img{width:100%;height:100%;object-fit:cover;transition:.5s}
.proj:hover .ph img{transform:scale(1.06)}
.proj .cat{position:absolute;top:14px;left:14px;background:rgba(1,40,39,.82);color:#fff;font-size:11px;font-weight:800;letter-spacing:.14em;text-transform:uppercase;padding:6px 14px;border-radius:999px}
.proj .cat.biz{background:rgba(181,76,28,.92)}
.proj .cat.off{background:rgba(17,23,22,.85)}
.proj .body{padding:24px 26px 28px;display:flex;flex-direction:column;gap:10px;flex:1}
.proj h3{font-size:19px}
.proj .kw{font-size:13px;font-weight:800;letter-spacing:.08em;text-transform:uppercase;color:var(--teal)}
.proj p{color:var(--muted);font-size:14.5px}
.proj ul{list-style:none;display:grid;gap:6px;margin-top:4px;padding-top:12px;border-top:1px solid var(--line)}
.proj li{font-size:13.5px;display:flex;gap:8px;color:var(--ink)}
.proj li span{color:var(--muted);min-width:78px;flex-shrink:0}

/* ---------- gallery ---------- */
.gallery{background:var(--soft)}
.gal-grid{display:grid;grid-template-columns:repeat(4,1fr);grid-auto-rows:210px;grid-auto-flow:dense;gap:14px;margin-top:46px}
.gal-grid figure{border-radius:12px;overflow:hidden;position:relative;margin:0}
.gal-grid img{width:100%;height:100%;object-fit:cover;transition:.5s}
.gal-grid figure:hover img{transform:scale(1.07)}
.gal-grid figcaption{position:absolute;left:0;right:0;bottom:0;background:linear-gradient(transparent,rgba(6,22,21,.85));color:#fff;font-size:12.5px;font-weight:600;padding:26px 14px 10px}
.gal-wide{grid-column:span 2}
.gal-tall{grid-row:span 2}

/* ---------- why ---------- */
.why-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:44px}
.why-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:28px 26px;transition:.3s}
.why-card:hover{transform:translateY(-5px);box-shadow:var(--shadow);border-color:var(--teal-2)}
.why-card h3{font-size:17px;margin-bottom:8px;display:flex;gap:10px;align-items:baseline}
.why-card h3:before{content:"✓";color:var(--orange);font-weight:800;flex-shrink:0}
.why-card p{font-size:14.5px;color:var(--muted)}

/* ---------- about ---------- */
.about{background:var(--soft)}
.about-grid{display:grid;grid-template-columns:420px 1fr;gap:60px;align-items:center}
.about-photo{border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);margin:0}
.about-photo img{width:100%;height:540px;object-fit:cover;object-position:center 30%}
.about-photo figcaption{background:var(--ink);color:rgba(255,255,255,.85);font-size:12.5px;padding:10px 16px}
.about p{color:var(--muted);margin-bottom:16px}
.about p strong{color:var(--ink)}
.cred-list{display:grid;grid-template-columns:1fr 1fr;gap:10px 22px;margin:24px 0 30px;list-style:none}
.cred-list li{font-size:14.5px;font-weight:600;display:flex;gap:10px;align-items:flex-start}
.cred-list li:before{content:"✓";color:var(--orange);font-weight:800}

/* ---------- FAQ ---------- */
.faq-list{margin-top:40px;display:grid;gap:12px;max-width:900px}
.faq-list details{border:1px solid var(--line);border-radius:12px;background:#fff;padding:0 24px}
.faq-list summary{cursor:pointer;list-style:none;font-weight:700;font-size:16.5px;padding:20px 30px 20px 0;position:relative}
.faq-list summary::-webkit-details-marker{display:none}
.faq-list summary:after{content:"+";position:absolute;right:0;top:16px;font-size:24px;font-weight:600;color:var(--orange)}
.faq-list details[open] summary:after{content:"–"}
.faq-list details p{color:var(--muted);font-size:15.5px;padding:0 0 20px}

/* ---------- contact ---------- */
.contact{background:var(--teal-tint)}
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:60px;margin-top:50px}
.c-info h3{font-size:20px;margin-bottom:12px}
.c-info > p{color:var(--muted);margin-bottom:22px}
.c-line{display:flex;gap:16px;align-items:center;padding:16px 0;border-bottom:1px solid var(--line)}
.c-line .ic{width:44px;height:44px;border-radius:12px;background:#fff;display:flex;align-items:center;justify-content:center;flex-shrink:0}
.c-line .ic svg{width:22px;height:22px;stroke:var(--teal)}
.c-line b{display:block;font-size:12.5px;letter-spacing:.1em;text-transform:uppercase;color:var(--muted)}
.c-line a,.c-line .v{font-weight:700;color:var(--teal-deep)}
.c-line a.map{display:inline-block;font-size:13.5px;font-weight:600;color:var(--teal);text-decoration:underline;margin-top:2px}
form.cform{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:34px}
.cform h3{font-size:20px}
.cform label{display:block;font-size:13.5px;font-weight:700;margin:16px 0 6px}
.cform input,.cform textarea,.cform select{width:100%;padding:13px 16px;border:1px solid #c5d8d5;border-radius:10px;font-family:inherit;font-size:15px;background:#fff;color:var(--ink)}
.cform input:focus,.cform textarea:focus,.cform select:focus{outline:2px solid var(--teal-2);border-color:transparent}
.cform button{margin-top:24px;width:100%;justify-content:center}
.cform .fine{font-size:12.5px;color:var(--muted);margin-top:14px}

/* ---------- footer ---------- */
footer.site{background:var(--ink);color:rgba(255,255,255,.8);padding:60px 0 30px}
.f-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:50px;margin-bottom:44px}
.f-grid img{height:62px;background:#fff;border-radius:12px;padding:8px 12px;margin-bottom:18px}
.f-grid h4{color:var(--orange-light);font-size:13px;letter-spacing:.18em;text-transform:uppercase;margin-bottom:16px}
.f-grid a{display:block;padding:5px 0;font-size:14.5px;color:rgba(255,255,255,.78)}
.f-grid a:hover{color:var(--orange-light)}
.f-grid p{font-size:14px;max-width:380px}
.f-bottom{border-top:1px solid rgba(255,255,255,.15);padding-top:24px;display:flex;justify-content:space-between;font-size:13px;color:rgba(255,255,255,.55);flex-wrap:wrap;gap:10px}

.reveal{opacity:0;transform:translateY(26px);transition:opacity .7s ease,transform .7s ease}
.reveal.on{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none;transition:none}html{scroll-behavior:auto}}

/* Short desktop viewports: hero + stats bar fit one screen */
@media(min-width:681px) and (max-height:880px){
  .hero{padding-top:104px}
  .hero-eyebrow{margin-bottom:16px}
  .hero h1{font-size:clamp(30px,4.4vw,50px);margin-bottom:16px}
  .hero p{font-size:clamp(16px,1.6vw,19px);margin-bottom:26px}
  .hero-stats{margin-top:34px}
  .hero-stats .wrap{padding-top:14px;padding-bottom:14px}
  .hstat b{font-size:24px}
  .hstat span{font-size:11.5px}
}
@media(min-width:681px) and (max-height:720px){
  .hero{padding-top:92px}
  .hero-eyebrow{margin-bottom:12px;font-size:11.5px;padding:6px 14px}
  .hero h1{font-size:clamp(26px,3.7vw,40px);margin-bottom:12px}
  .hero p{margin-bottom:20px}
  .hero-ctas .btn{padding:12px 26px;font-size:15px}
  .hero-stats{margin-top:24px}
  .hstat b{font-size:20px}
}

@media(max-width:1060px){
  nav.menu{gap:18px}
  nav.menu a{font-size:13.5px}
  .steps{grid-template-columns:repeat(3,1fr)}
}
@media(max-width:960px){
  .svc-grid,.proj-grid,.why-grid{grid-template-columns:1fr 1fr}
  .ben-grid{grid-template-columns:1fr 1fr}
  .about-grid,.contact-grid,.split{grid-template-columns:1fr}
  .split .photo img{height:360px}
  .about-photo img{height:440px}
  .gal-grid{grid-template-columns:1fr 1fr}
  .gal-tall{grid-row:span 1}
  .f-grid{grid-template-columns:1fr}
  .hero-stats .wrap{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:880px){
  nav.menu{position:fixed;top:76px;right:0;background:#fff;flex-direction:column;align-items:flex-start;width:100%;padding:24px;border-bottom:1px solid var(--line);display:none;box-shadow:0 12px 24px rgba(0,0,0,.08)}
  nav.menu.open{display:flex}
  nav.menu a{font-size:16px}
  .burger{display:block}
}
@media(max-width:680px){
  .svc-grid,.proj-grid,.why-grid,.ben-grid,.steps{grid-template-columns:1fr}
  section{padding:60px 0}
  body{font-size:16px}
  .brand img{height:40px}
  .hero{min-height:0;padding:124px 0 0;display:block}
  .hero h1{font-size:clamp(28px,8vw,36px)}
  .hero p{margin-bottom:30px}
  .hero-eyebrow{display:inline-block;font-size:11px;letter-spacing:.14em;padding:7px 14px}
  .hero-ctas .btn{width:100%;justify-content:center}
  .hero-stats{margin-top:44px;backdrop-filter:none;background:rgba(1,40,39,.82)}
  .hero-stats .wrap{grid-template-columns:1fr 1fr;gap:18px 10px;padding-top:26px;padding-bottom:20px}
  .hstat b{font-size:24px}
  .hstat span{font-size:11px}
  .section-title{line-height:1.25}
  .section-lead{font-size:16.5px}
  .split{gap:32px;margin-top:48px}
  .split .photo img{height:300px}
  .place-list{grid-template-columns:1fr}
  .gal-grid{grid-template-columns:1fr 1fr;grid-auto-rows:150px;gap:10px}
  .gal-grid figcaption{font-size:11px;padding:20px 10px 8px}
  .about-photo img{height:380px}
  .cred-list{grid-template-columns:1fr}
  .contact-grid{gap:40px}
  form.cform{padding:26px 20px}
  .faq-list details{padding:0 18px}
}