*{margin:0;padding:0;box-sizing:border-box}html{scroll-behavior:smooth}body{font-family:'Montserrat',sans-serif;background:#090909;color:#fff;line-height:1.7;overflow-x:hidden}.container{width:90%;max-width:1400px;margin:auto}header{position:fixed;top:0;left:0;width:100%;z-index:1000;backdrop-filter:blur(10px);background:rgba(10,10,10,.72);border-bottom:1px solid rgba(255,255,255,.08)}header .container{height:85px;display:flex;align-items:center;justify-content:space-between}nav{display:flex;gap:38px}nav a{color:white;font-weight:600;position:relative;transition:.3s}nav a::after{content:"";position:absolute;left:0;bottom:-8px;width:0;height:2px;background:#ff8a00;transition:.35s}nav a:hover{color:#ff8a00}nav a:hover::after,nav a.active::after{width:100%}nav a.active{color:#ff8a00}.mobile-title{display:none}.burger{display:none;flex-direction:column;gap:6px;cursor:pointer;z-index:1101}.burger span{width:30px;height:3px;background:#fff;border-radius:5px;transition:.35s}@media (max-width:991px){header .container{height:72px}.logo img{display:none}.mobile-title{display:block;position:absolute;left:50%;transform:translateX(-50%);font-size:22px;font-weight:700;letter-spacing:1px;white-space:nowrap}.burger{display:flex;margin-left:auto}nav{position:fixed;top:0;right:-100%;width:280px;height:100vh;background:#111;display:flex;flex-direction:column;justify-content:center;align-items:center;gap:35px;transition:.4s;box-shadow:-10px 0 40px rgba(0,0,0,.45);z-index:1000}nav.active{right:0}nav a{font-size:22px}}.logo img{height:56px;width:auto;display:block;transition:.3s ease}.logo img:hover{transform:scale(1.08)}.logo{display:flex;align-items:center;text-decoration:none}.menu-overlay{position:fixed;inset:0;background:rgba(0,0,0,.45);opacity:0;visibility:hidden;transition:.35s;z-index:999}.menu-overlay.active{opacity:1;visibility:visible}.burger.active span:nth-child(1){transform:rotate(45deg) translate(6px,6px)}.burger.active span:nth-child(2){opacity:0}.burger.active span:nth-child(3){transform:rotate(-45deg) translate(6px,-6px)}@media (min-width:992px){.logo img{height:72px;width:auto;transition:.3s}}@media (max-width:600px){header{backdrop-filter:none;background:rgba(9,9,9,.92)}}

/* HERO */
.hero{position:relative;height:60vh;display:flex;justify-content:center;align-items:center;overflow:hidden}
.hero-image{position:absolute;width:100%;height:100%;object-fit:cover}
.hero-overlay{position:absolute;inset:0;background:linear-gradient(rgba(0,0,0,.78),rgba(0,0,0,.55))}
.hero-content{position:relative;z-index:2;text-align:center;max-width:900px;padding:0 20px}
.hero h1{font-size:64px;font-weight:800;letter-spacing:3px;margin-bottom:20px}
.hero span{color:#ff8a00}
.hero p{color:#d0d0d0;font-size:20px}

/* GALLERY GRID */
.gallery{padding:100px 0}
.gallery-grid{display:grid;grid-auto-flow:dense;grid-template-columns:repeat(4,1fr);grid-auto-rows:260px;gap:22px}
.gallery-item{position:relative;overflow:hidden;border-radius:16px;cursor:pointer;background:#111;border:1px solid rgba(255,255,255,.08)}
.gallery-item img{width:100%;height:100%;object-fit:cover;display:block;transition:.6s ease}
.gallery-item:hover img{transform:scale(1.1)}
.gallery-item::after{content:"";position:absolute;inset:0;background:linear-gradient(to top,rgba(0,0,0,.55),transparent 55%);opacity:0;transition:.35s}
.gallery-item:hover::after{opacity:1}
.gallery-item .zoom-icon{position:absolute;right:16px;bottom:16px;width:42px;height:42px;border-radius:50%;background:rgba(255,138,0,.92);display:flex;align-items:center;justify-content:center;opacity:0;transform:translateY(10px);transition:.35s}
.gallery-item:hover .zoom-icon{opacity:1;transform:translateY(0)}
.gallery-item .zoom-icon svg{width:20px;height:20px;stroke:#fff;fill:none;stroke-width:2}

/* Varied tile sizes for a more dynamic mosaic look */
.gallery-item.wide{grid-column:span 2}
.gallery-item.tall{grid-row:span 2}
.gallery-item.big{grid-column:span 2;grid-row:span 2}

/* LIGHTBOX */
.lightbox{position:fixed;inset:0;z-index:2000;background:rgba(5,5,5,.96);display:flex;align-items:center;justify-content:center;opacity:0;visibility:hidden;transition:.3s}
.lightbox.active{opacity:1;visibility:visible}
.lightbox-inner{position:relative;max-width:90vw;max-height:86vh}
.lightbox-inner img{max-width:90vw;max-height:86vh;display:block;border-radius:10px;box-shadow:0 30px 80px rgba(0,0,0,.6)}
.lightbox-close,.lightbox-prev,.lightbox-next{position:absolute;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.18);border-radius:50%;width:52px;height:52px;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:.3s;color:#fff}
.lightbox-close:hover,.lightbox-prev:hover,.lightbox-next:hover{background:#ff8a00;border-color:#ff8a00}
.lightbox-close{top:-70px;right:0}
.lightbox-prev{left:-70px;top:50%;transform:translateY(-50%)}
.lightbox-next{right:-70px;top:50%;transform:translateY(-50%)}
.lightbox-close svg,.lightbox-prev svg,.lightbox-next svg{width:24px;height:24px;stroke:currentColor;fill:none;stroke-width:2.2}
.lightbox-counter{position:absolute;bottom:-46px;left:50%;transform:translateX(-50%);color:#bdbdbd;font-size:15px;letter-spacing:1px}

/* CTA (reused style) */
.cta{padding:120px 20px;text-align:center;background:linear-gradient(135deg,#181818,#0b0b0b)}
.cta h2{font-size:52px;margin-bottom:25px}
.cta p{max-width:760px;margin:0 auto 40px;color:#d0d0d0;font-size:20px}
.cta-button{display:inline-block;padding:16px 40px;background:#ff8a00;color:#fff;text-decoration:none;border-radius:8px;font-weight:700;transition:.35s}
.cta-button:hover{transform:translateY(-5px);background:#ff9d1f;box-shadow:0 18px 40px rgba(255,138,0,.35)}

/* FOOTER */
.footer{background:#050505;border-top:1px solid rgba(255,255,255,.08);padding:50px 0;text-align:center}
.footer-logo img{height:70px;width:auto;object-fit:contain;margin-bottom:20px}
.footer p{color:#888}

@keyframes fadeUp{from{opacity:0;transform:translateY(60px)}to{opacity:1;transform:translateY(0)}}
.hero-content,.gallery-item,.cta{animation:fadeUp .9s ease both}
.gallery-item:nth-child(1){animation-delay:.03s}
.gallery-item:nth-child(2){animation-delay:.06s}
.gallery-item:nth-child(3){animation-delay:.09s}
.gallery-item:nth-child(4){animation-delay:.12s}
.gallery-item:nth-child(5){animation-delay:.15s}
.gallery-item:nth-child(6){animation-delay:.18s}
.gallery-item:nth-child(7){animation-delay:.21s}
.gallery-item:nth-child(8){animation-delay:.24s}
.gallery-item:nth-child(9){animation-delay:.27s}
.gallery-item:nth-child(10){animation-delay:.3s}
.gallery-item:nth-child(11){animation-delay:.33s}
.gallery-item:nth-child(12){animation-delay:.36s}
.gallery-item:nth-child(13){animation-delay:.39s}
.gallery-item:nth-child(14){animation-delay:.42s}

::-webkit-scrollbar{width:10px}
::-webkit-scrollbar-track{background:#111}
::-webkit-scrollbar-thumb{background:#ff8a00;border-radius:20px}
::-webkit-scrollbar-thumb:hover{background:#ff9d1f}
::selection{background:#ff8a00;color:#fff}

@media(max-width:1100px){
  .gallery-grid{grid-template-columns:repeat(3,1fr);grid-auto-rows:220px}
  .hero h1{font-size:52px}
}
@media(max-width:768px){
  .hero{height:45vh}
  .hero h1{font-size:38px}
  .hero p{font-size:16px}
  .gallery{padding:70px 0}
  .gallery-grid{grid-template-columns:repeat(2,1fr);grid-auto-rows:180px;gap:14px}
  .gallery-item.wide,.gallery-item.big{grid-column:span 2}
  .gallery-item.tall,.gallery-item.big{grid-row:span 1}
  .lightbox-prev{left:6px}
  .lightbox-next{right:6px}
  .lightbox-close{top:6px;right:6px}
  .lightbox-prev,.lightbox-next,.lightbox-close{width:44px;height:44px;background:rgba(0,0,0,.55)}
  .lightbox-counter{bottom:10px}
  .cta h2{font-size:34px}
}
@media(max-width:480px){
  .container{width:94%}
  .gallery-grid{grid-template-columns:repeat(2,1fr);grid-auto-rows:150px;gap:10px}
  .hero h1{font-size:30px}
  .footer-logo img{height:55px}
}

.gallery,.footer{content-visibility:auto;contain-intrinsic-size:1px 800px}
@media (prefers-reduced-motion:reduce){*,*::before,*::after{animation-duration:.01ms !important;animation-iteration-count:1 !important;transition-duration:.01ms !important;scroll-behavior:auto !important}}


:root{--orange:#ff8a00;--orange-light:#ffab33;--gray:#bcbcbc;--shadow:0 15px 40px rgba(0,0,0,.45)}
/* =====================================================================
   ВЫПАДАЮЩЕЕ МЕНЮ «КАЛЬКУЛЯТОР» В ШАПКЕ
   ===================================================================== */

.nav-dropdown {
    position: relative;
}

.nav-dropdown-trigger {
    background: none;
    border: none;
    color: white;
    font-weight: 600;
    font-family: inherit;
    font-size: inherit;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    position: relative;
    padding: 0;
    transition: .3s;
}

.nav-dropdown-trigger::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: -8px;
    width: 0;
    height: 2px;
    background: var(--orange);
    transition: .35s;
}

.nav-dropdown-trigger:hover,
.nav-dropdown-trigger.active {
    color: var(--orange);
}

.nav-dropdown-trigger:hover::after,
.nav-dropdown-trigger.active::after {
    width: 100%;
}

.nav-caret {
    font-size: 10px;
    transition: transform .3s;
    display: inline-block;
}

.nav-dropdown.open .nav-caret {
    transform: rotate(180deg);
}

.nav-dropdown-menu {
    position: absolute;
    top: calc(100% + 22px);
    left: 50%;
    transform: translateX(-50%) translateY(-8px);
    min-width: 200px;
    background: #161616;
    border: 1px solid rgba(255, 255, 255, .1);
    border-radius: 10px;
    padding: 8px;
    box-shadow: var(--shadow);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: .25s;
    z-index: 1100;
}

.nav-dropdown.open .nav-dropdown-menu {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transform: translateX(-50%) translateY(0);
}

.nav-dropdown-menu a {
    display: block;
    padding: 10px 14px;
    border-radius: 7px;
    font-size: 14px;
    font-weight: 600;
    color: #ddd;
    transition: .2s;
}

.nav-dropdown-menu a::after {
    display: none;
}

.nav-dropdown-menu a:hover {
    background: rgba(255, 140, 0, .12);
    color: var(--orange-light);
}

.nav-dropdown-menu a.active {
    color: var(--orange-light);
    background: rgba(255, 140, 0, .08);
}

/* --- Мобильная версия (внутри выезжающего меню-бургера) --- */
@media (max-width: 991px) {
    .nav-dropdown {
        display: flex;
        flex-direction: column;
        align-items: center;
    }

    .nav-dropdown-trigger {
        font-size: 22px;
    }

    .nav-dropdown-menu {
        position: static;
        transform: none;
        opacity: 1;
        visibility: visible;
        pointer-events: auto;
        box-shadow: none;
        border: none;
        background: transparent;
        max-height: 0;
        padding: 0;
        overflow: hidden;
        transition: max-height .3s ease, padding .3s ease;
        display: flex;
        flex-direction: column;
        align-items: center;
        gap: 6px;
    }

    .nav-dropdown.open .nav-dropdown-menu {
        max-height: 200px;
        padding: 10px 0 0;
    }

    .nav-dropdown-menu a {
        font-size: 17px;
        color: var(--gray);
    }
}