/* ── Local Fonts ────────────────────────────── */
@font-face{font-family:'Inter';font-style:normal;font-weight:300;font-display:swap;src:url('fonts/inter-300.ttf') format('truetype')}
@font-face{font-family:'Inter';font-style:normal;font-weight:400;font-display:swap;src:url('fonts/inter-400.ttf') format('truetype')}
@font-face{font-family:'Inter';font-style:normal;font-weight:500;font-display:swap;src:url('fonts/inter-500.ttf') format('truetype')}
@font-face{font-family:'Inter';font-style:normal;font-weight:600;font-display:swap;src:url('fonts/inter-600.ttf') format('truetype')}
@font-face{font-family:'Inter';font-style:normal;font-weight:700;font-display:swap;src:url('fonts/inter-700.ttf') format('truetype')}
@font-face{font-family:'Poppins';font-style:normal;font-weight:400;font-display:swap;src:url('fonts/poppins-400.ttf') format('truetype')}
@font-face{font-family:'Poppins';font-style:normal;font-weight:500;font-display:swap;src:url('fonts/poppins-500.ttf') format('truetype')}
@font-face{font-family:'Poppins';font-style:normal;font-weight:600;font-display:swap;src:url('fonts/poppins-600.ttf') format('truetype')}
@font-face{font-family:'Poppins';font-style:normal;font-weight:700;font-display:swap;src:url('fonts/poppins-700.ttf') format('truetype')}
@font-face{font-family:'Poppins';font-style:normal;font-weight:800;font-display:swap;src:url('fonts/poppins-800.ttf') format('truetype')}

/* ── Variables ─────────────────────────────── */
:root {
  --cp:   #6BA3A0;
  --cpd:  #5a8f8c;
  --cpl:  #8BBCB9;
  --cpacc:#2d6663;
  --cpbtn:#3a7270;
  --ca:   #8B4513;
  --cbg:  #FFFFFF;
  --cbgl: #F8FAFA;
  --ct:   #1A1A2E;
  --ctl:  #6B7280;
  --ctm:  #9CA3AF;
  --cbrd: #E5E7EB;
  --fh:   'Poppins', sans-serif;
  --fb:   'Inter', sans-serif;
  --sh-m: 0 4px 16px rgba(107,163,160,.15);
  --sh-l: 0 8px 32px rgba(107,163,160,.2);
  --r-s:  8px;
  --r-m:  16px;
  --r-l:  24px;
  --tr:   all .3s cubic-bezier(.4,0,.2,1);
  --nav-h:72px;
  --sp:   6rem 0;
  --cmax: 1200px;
  --cpx:  0 1.5rem;
}

/* ── Reset ──────────────────────────────────── */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;font-size:16px}
body{font-family:var(--fb);color:var(--ct);background:var(--cbg);line-height:1.6;overflow-x:hidden;-webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto;display:block}
picture{display:block}
a{text-decoration:none;color:inherit;transition:var(--tr)}
ul{list-style:none}
button{cursor:pointer;border:none;background:none;font-family:var(--fb)}

/* ── Language toggle ────────────────────────── */
html[data-lang="bg"] .t-en{display:none!important}
html[data-lang="en"] .t-bg{display:none!important}

/* ── Layout helpers ─────────────────────────── */
.container{max-width:var(--cmax);margin:0 auto;padding:var(--cpx)}
.section{padding:var(--sp)}
.section-alt{background:var(--cbgl)}

.section-header{text-align:center;margin-bottom:3.5rem}
.section-label{display:inline-block;font-size:.8rem;font-weight:600;letter-spacing:.15em;text-transform:uppercase;color:var(--cpacc);background:rgba(107,163,160,.1);padding:.35rem 1rem;border-radius:100px;margin-bottom:1rem}
.section-title{font-family:var(--fh);font-size:clamp(1.75rem,4vw,2.75rem);font-weight:700;line-height:1.2;margin-bottom:1rem}
.section-subtitle{font-size:1.05rem;color:var(--ctl);max-width:600px;margin:0 auto;line-height:1.7}

/* ── Buttons ────────────────────────────────── */
.btn{display:inline-flex;align-items:center;gap:.5rem;padding:.875rem 2rem;border-radius:var(--r-s);font-size:.95rem;font-weight:600;transition:var(--tr);border:2px solid transparent;white-space:nowrap}
.btn-primary{background:var(--cpbtn);color:#fff;border-color:var(--cpbtn)}
.btn-primary:hover{background:var(--cpacc);border-color:var(--cpacc);transform:translateY(-2px);box-shadow:var(--sh-l)}
.btn-secondary{background:transparent;color:var(--cpacc);border-color:var(--cpacc)}
.btn-secondary:hover{background:var(--cpacc);color:#fff;transform:translateY(-2px);box-shadow:var(--sh-m)}

/* ── Navbar ─────────────────────────────────── */
.navbar{position:fixed;top:0;left:0;right:0;z-index:1000;height:var(--nav-h);background:rgba(255,255,255,.88);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border-bottom:1px solid rgba(107,163,160,.12);transition:var(--tr)}
.navbar.scrolled{box-shadow:var(--sh-m)}
.navbar.hidden{transform:translateY(-100%)}
.navbar-inner{display:flex;align-items:center;justify-content:space-between;height:100%;max-width:var(--cmax);margin:0 auto;padding:var(--cpx)}
.navbar-logo{display:flex;align-items:center;gap:.75rem}
.navbar-logo picture{display:flex;height:40px;width:auto}
.navbar-logo img{height:40px;width:auto}
.navbar-nav{display:flex;align-items:center;gap:2rem}
.navbar-nav a{font-size:.9rem;font-weight:500;color:var(--ctl);position:relative;padding-bottom:4px}
.navbar-nav a::after{content:'';position:absolute;bottom:0;left:0;width:0;height:2px;background:var(--cp);transition:width .3s;border-radius:2px}
.navbar-nav a:hover,.navbar-nav a.active{color:var(--cpacc)}
.navbar-nav a:hover::after,.navbar-nav a.active::after{width:100%}
.navbar-actions{display:flex;align-items:center;gap:1rem}
.lang-switcher{display:flex;align-items:center;background:var(--cbgl);border:1px solid var(--cbrd);border-radius:100px;overflow:hidden}
.lang-btn{padding:.35rem .8rem;font-size:.8rem;font-weight:600;color:var(--ctl);transition:var(--tr);border-radius:100px;cursor:pointer;border:none;background:transparent;font-family:var(--fb)}
.lang-btn.active{background:var(--cp);color:var(--ct)}
.hamburger{display:none;flex-direction:column;gap:5px;padding:8px;cursor:pointer;border:none;background:none;z-index:1001}
.hamburger span{display:block;width:24px;height:2px;background:var(--ct);border-radius:2px;transition:var(--tr)}
.hamburger.open span:nth-child(1){transform:rotate(45deg) translate(5px,5px)}
.hamburger.open span:nth-child(2){opacity:0}
.hamburger.open span:nth-child(3){transform:rotate(-45deg) translate(5px,-5px)}

/* ── Mobile menu ─────────────────────────────── */
.mobile-menu{position:fixed;inset:0;background:var(--cbg);z-index:999;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2.5rem;opacity:0;pointer-events:none;transition:opacity .3s}
.mobile-menu.open{opacity:1;pointer-events:all}
.mobile-menu a{font-family:var(--fh);font-size:1.75rem;font-weight:600;color:var(--ct)}
.mobile-menu a:hover{color:var(--cpacc)}
.mobile-menu .lang-switcher{transform:scale(1.15);margin-top:.5rem}

/* ── Hero ───────────────────────────────────── */
#home{position:relative;min-height:100vh;display:flex;align-items:center;overflow:hidden;background:var(--cbg);padding-top:var(--nav-h)}
.hero-shapes{position:absolute;inset:0;pointer-events:none;overflow:hidden}
.shape{position:absolute;border-radius:50%;opacity:.07}
.shape-1{width:500px;height:500px;background:var(--cp);top:-120px;right:-120px;animation:fl1 9s ease-in-out infinite}
.shape-2{width:320px;height:320px;background:var(--ca);bottom:5%;left:-80px;animation:fl2 11s ease-in-out infinite}
.shape-3{width:200px;height:200px;background:var(--cpl);top:35%;right:12%;border-radius:40% 60% 60% 40%/40% 40% 60% 60%;animation:fl3 13s ease-in-out infinite}
.shape-4{width:140px;height:140px;background:var(--ca);top:18%;left:12%;opacity:.05;animation:fl1 10s ease-in-out infinite reverse}
.shape-5{width:130px;height:130px;background:rgba(0,0,0,.18);bottom:28%;right:28%;border-radius:var(--r-l);animation:fl2 9s ease-in-out infinite}
@keyframes fl1{0%,100%{transform:translate(0,0) rotate(0deg)}33%{transform:translate(20px,-30px) rotate(5deg)}66%{transform:translate(-15px,15px) rotate(-3deg)}}
@keyframes fl2{0%,100%{transform:translate(0,0) scale(1)}50%{transform:translate(25px,-20px) scale(1.05)}}
@keyframes fl3{0%,100%{transform:translate(0,0) rotate(0deg)}25%{transform:translate(-20px,-20px) rotate(15deg)}75%{transform:translate(20px,10px) rotate(-10deg)}}

.hero-content{position:relative;z-index:1;max-width:var(--cmax);margin:0 auto;padding:4rem 1.5rem;text-align:center}
.hero-badge{display:inline-flex;align-items:center;gap:.6rem;background:rgba(107,163,160,.1);border:1px solid rgba(107,163,160,.3);color:var(--cpacc);font-size:.85rem;font-weight:600;padding:.4rem 1.2rem;border-radius:100px;margin-bottom:2rem;animation:fsu .8s ease both}
.hero-badge::before{content:'';width:8px;height:8px;background:var(--cpacc);border-radius:50%;animation:pulse 2s ease infinite;flex-shrink:0}
@keyframes pulse{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.4;transform:scale(.75)}}
.hero-title{font-family:var(--fh);font-size:clamp(2.25rem,6vw,4.25rem);font-weight:500;line-height:1.15;color:var(--ct);margin-bottom:1.5rem;animation:fsu .8s ease .1s both;text-transform:uppercase}
.hero-title .hl{color:var(--cpacc);position:relative}
.hero-sub{font-size:clamp(1rem,2.5vw,1.15rem);color:var(--ct);max-width:560px;margin:0 auto 2.5rem;line-height:1.8;animation:fsu .8s ease .2s both;font-weight:500;opacity:.65}
.hero-actions{display:flex;gap:1rem;justify-content:center;flex-wrap:wrap;animation:fsu .8s ease .3s both}
.hero-scroll{position:absolute;bottom:1.5rem;left:50%;transform:translateX(-50%);display:flex;flex-direction:column;align-items:center;gap:.4rem;color:var(--ctm);font-size:.75rem;animation:bounce 2s ease infinite}
@keyframes bounce{0%,100%{transform:translateX(-50%) translateY(0)}50%{transform:translateX(-50%) translateY(8px)}}
@keyframes fsu{from{opacity:0;transform:translateY(28px)}to{opacity:1;transform:translateY(0)}}

/* ── Services ───────────────────────────────── */
.services-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1.25rem}
.svc-card{background:var(--cbg);border-radius:var(--r-m);padding:1.75rem;border:1px solid var(--cbrd);transition:var(--tr);position:relative;overflow:hidden}
.svc-card::before{content:'';position:absolute;top:0;left:0;right:0;height:3px;background:linear-gradient(90deg,var(--cp),var(--cpl));transform:scaleX(0);transition:transform .3s;transform-origin:left}
.svc-card:hover{transform:translateY(-6px);box-shadow:var(--sh-l);border-color:transparent}
.svc-card:hover::before{transform:scaleX(1)}
.svc-icon{width:48px;height:48px;margin-bottom:1.1rem;display:flex;align-items:center;justify-content:center;background:rgba(107,163,160,.12);border-radius:var(--r-s);color:var(--cpacc);flex-shrink:0;transition:var(--tr)}
.svc-icon svg{width:22px;height:22px;stroke:currentColor;fill:none;stroke-width:1.75;stroke-linecap:round;stroke-linejoin:round}
.svc-card:hover .svc-icon{background:var(--cpbtn);color:#fff}
.svc-card h3{font-family:var(--fh);font-size:1rem;font-weight:600;margin-bottom:.6rem}
.svc-card p{color:var(--ctl);font-size:.88rem;line-height:1.65}

/* ── About ──────────────────────────────────── */
.about-grid{display:grid;grid-template-columns:1fr 1fr;gap:4rem;align-items:center}
.about-text .section-title{text-align:left;margin-bottom:1.25rem}
.about-text p{color:var(--ctl);line-height:1.8;margin-bottom:2.5rem}
.stat-lbl{font-size:.8rem;color:var(--ctl);font-weight:500}

.about-visual{position:relative;height:430px}
.about-main{position:absolute;top:0;left:0;right:0;bottom:80px;background:linear-gradient(135deg,var(--cp) 0%,var(--cpd) 100%);border-radius:var(--r-l);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:1.75rem;overflow:hidden}
.about-main::before{content:'';position:absolute;width:300px;height:300px;background:rgba(255,255,255,.07);border-radius:50%;top:-100px;right:-100px}
.about-main::after{content:'';position:absolute;width:200px;height:200px;background:rgba(255,255,255,.05);border-radius:50%;bottom:-60px;left:-60px}
.about-logo-wrap{z-index:1;display:flex;flex-direction:column;align-items:center;gap:.75rem}
.about-logo-wrap picture{display:flex;height:70px;width:auto}
.about-logo-wrap img{height:70px;width:auto;opacity:.97;filter:drop-shadow(0 2px 10px rgba(0,0,0,.18))}
.about-logo-wrap span{font-family:var(--fh);font-size:1.3rem;font-weight:700;color:#fff;letter-spacing:.02em}
.tech-dots{display:flex;gap:.9rem;z-index:1}
.tdot{width:46px;height:46px;background:rgba(255,255,255,.15);border-radius:var(--r-s);display:flex;align-items:center;justify-content:center;backdrop-filter:blur(10px);color:#fff}
.tdot svg{width:20px;height:20px;stroke:currentColor;fill:none;stroke-width:1.75;stroke-linecap:round;stroke-linejoin:round}
.about-badge{position:absolute;bottom:0;right:0;background:var(--ca);color:#fff;border-radius:var(--r-m);padding:1.25rem 1.5rem;box-shadow:0 8px 24px rgba(139,69,19,.3);z-index:2;min-width:165px}
.about-badge strong{display:block;font-family:var(--fh);font-size:1.75rem;font-weight:800;line-height:1}
.about-badge span{font-size:.8rem;opacity:.9}

/* ── Portfolio ──────────────────────────────── */
.pf-filters{display:flex;gap:.75rem;justify-content:center;flex-wrap:wrap;margin-bottom:2.5rem}
.filter-btn{padding:.5rem 1.4rem;border-radius:100px;font-size:.85rem;font-weight:600;color:var(--ctl);background:var(--cbg);border:1px solid var(--cbrd);cursor:pointer;transition:var(--tr)}
.filter-btn:hover,.filter-btn.active{background:var(--cpbtn);color:#fff;border-color:var(--cpbtn)}
.pf-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1.25rem}
.pf-card{background:var(--cbg);border-radius:var(--r-m);overflow:hidden;border:1px solid var(--cbrd);transition:var(--tr);display:flex;flex-direction:column}
.pf-card:hover{transform:translateY(-6px);box-shadow:var(--sh-l);border-color:transparent}
.pf-banner{height:175px;position:relative;display:flex;align-items:center;justify-content:center;overflow:hidden;background:linear-gradient(90deg,#6BA3A0,#738C7D)}
.pf-card:nth-child(2) .pf-banner{background:linear-gradient(90deg,#738C7D,#7B745A)}
.pf-card:nth-child(3) .pf-banner{background:linear-gradient(90deg,#7B745A,#835D36)}
.pf-card:nth-child(4) .pf-banner{background:linear-gradient(90deg,#835D36,#8B4513)}
.pf-banner .bi{opacity:1;position:absolute}
.pf-banner .bl{font-family:var(--fh);font-size:1.1rem;font-weight:700;color:#fff;z-index:1;letter-spacing:.01em;text-shadow:0 1px 6px rgba(0,0,0,.2)}
.pf-body{padding:1.4rem;display:flex;flex-direction:column;flex:1}
.pf-badge{display:inline-block;font-size:.75rem;font-weight:600;color:var(--cpacc);background:rgba(107,163,160,.1);padding:.25rem .7rem;border-radius:100px;margin-bottom:.7rem}
.pf-body h3{font-family:var(--fh);font-size:1.05rem;font-weight:600;margin-bottom:.5rem}
.pf-body p{font-size:.9rem;color:var(--ctl);margin-bottom:1.2rem;line-height:1.6;flex:1}
.pf-link{display:inline-flex;align-items:center;gap:.4rem;font-size:.85rem;font-weight:600;color:var(--cpacc);margin-top:auto}
.pf-link svg{width:14px;height:14px;transition:transform .2s}
.pf-link:hover svg{transform:translateX(3px)}

/* ── Contact ────────────────────────────────── */
.contact-header{text-align:center;margin-bottom:3rem}
.contact-header .section-subtitle{max-width:560px;margin-left:auto;margin-right:auto}
.ci-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:1.5rem;max-width:820px;margin:0 auto}
.ci-card{background:var(--cbgl);border:1px solid var(--cbrd);border-radius:var(--r-l);padding:2rem 1.5rem;text-align:center;transition:var(--tr)}
.ci-card:not(.ci-card--plain):hover{border-color:var(--cp);transform:translateY(-4px);box-shadow:var(--sh-l)}
.ci-card:not(.ci-card--plain):hover .ci-icon{background:var(--cpbtn);color:#fff}
.ci-icon{width:56px;height:56px;background:rgba(107,163,160,.12);border-radius:var(--r-s);display:flex;align-items:center;justify-content:center;margin:0 auto 1.1rem;color:var(--cpacc);transition:var(--tr)}
.ci-icon svg{width:22px;height:22px}
.ci-lbl{font-size:.72rem;font-weight:600;text-transform:uppercase;letter-spacing:.1em;color:var(--ctm);margin-bottom:.45rem}
.ci-val{font-size:1rem;font-weight:600;color:var(--ct)}
.ci-val a{color:inherit}
.ci-val a:hover{color:var(--cpacc)}

/* ── Footer ─────────────────────────────────── */
footer{background:var(--ca);color:rgba(255,255,255,.9);padding:4rem 0 2rem}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:3rem;padding-bottom:3rem;border-bottom:1px solid rgba(255,255,255,.25);margin-bottom:2rem}
.footer-brand{display:flex;flex-direction:column;gap:1rem}
.footer-logo-row{display:flex;align-items:center;gap:.75rem}
.footer-logo-row picture{display:flex;height:36px;width:auto}
.footer-logo-row img{height:36px;width:auto;opacity:.92;filter:drop-shadow(0 1px 4px rgba(0,0,0,.25))}
.footer-logo-row span{font-family:var(--fh);font-size:1.05rem;font-weight:700;color:#fff}
.footer-brand p{font-size:.9rem;line-height:1.7;max-width:280px}
.footer-social{display:flex;gap:.7rem;margin-top:.25rem}
.soc-link{width:38px;height:38px;background:rgba(255,255,255,.15);border-radius:var(--r-s);display:flex;align-items:center;justify-content:center;color:#fff;transition:var(--tr)}
.soc-link:hover{background:var(--cpbtn);color:#fff;transform:translateY(-2px)}
.soc-link svg{width:17px;height:17px}
.fcol h3{font-family:var(--fh);font-size:.85rem;font-weight:600;color:#fff;text-transform:uppercase;letter-spacing:.08em;margin-bottom:1.2rem}
.flinks{display:flex;flex-direction:column;gap:.7rem}
.flinks a,.flinks span{font-size:.9rem;color:rgba(255,255,255,.88);transition:var(--tr)}
.flinks a:hover{color:var(--cpl);padding-left:4px}
.footer-bottom{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:1rem}
.footer-bottom p{font-size:.85rem}

/* ── Scroll animations ──────────────────────── */
.fade-up{opacity:0;transform:translateY(28px);transition:opacity .6s ease,transform .6s ease}
.fade-up.visible{opacity:1;transform:translateY(0)}
.d1{transition-delay:.1s}.d2{transition-delay:.2s}.d3{transition-delay:.3s}.d4{transition-delay:.4s}

/* ── Scroll-to-top button ────────────────────── */
#back-top{position:fixed;bottom:1.5rem;left:1.5rem;z-index:900;width:42px;height:42px;border-radius:50%;background:var(--cpbtn);color:#fff;border:none;cursor:pointer;display:flex;align-items:center;justify-content:center;box-shadow:var(--sh-m);opacity:0;transform:translateY(12px);transition:var(--tr);pointer-events:none}
#back-top.show{opacity:1;transform:translateY(0);pointer-events:all}
#back-top:hover{background:var(--cpd);transform:translateY(-2px)}
#back-top svg{width:18px;height:18px}

/* ── Responsive ─────────────────────────────── */
@media(max-width:1024px){
  .about-grid{gap:2.5rem}
  .footer-grid{grid-template-columns:1fr 1fr}
  .footer-brand{grid-column:1/-1}
  .pf-grid{grid-template-columns:repeat(2,1fr)}
  .services-grid{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:768px){
  :root{--sp:4rem 0}
  .navbar-nav{display:none}
  .hamburger{display:flex}
  .about-grid{grid-template-columns:1fr}
  .about-text .section-label{display:block;text-align:center}
  .about-text .section-title{text-align:center}
  .about-text{text-align:center}
  .about-text p{text-align:left}
  .about-visual{height:280px}
  .about-main{bottom:68px}
  .about-badge{padding:1rem 1.2rem}
  .about-badge strong{font-size:1.5rem}
  .pf-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:2rem}
  .footer-bottom{flex-direction:column;text-align:center}
  .hero-actions{flex-direction:column;align-items:center}
  .hero-actions .btn{width:100%;max-width:280px;justify-content:center}
}
@media(max-width:600px){
  .ci-cards{grid-template-columns:1fr}
}
@media(max-width:480px){
  .services-grid{grid-template-columns:1fr}
}

/* ── Reduced motion ─────────────────────────── */
@media(prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}
  html{scroll-behavior:auto}
}

.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);border:0}