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

/* ===== VARIABLES ===== */
:root{
  --color-primary:#0e6b63;
  --color-primary-dark:#063634;
  --color-primary-darker:#042220;
  --color-primary-light:#159e90;
  --color-accent:#0e6b63;
  --color-accent-dark:#0e6b63;
  --color-text:#2b3433;
  --color-text-light:#5d6b6a;
  --color-bg-soft:#f5f8f7;
  --font-heading:'Poppins', sans-serif;
  --font-display:'Playfair Display', serif;
  --font-body:'Inter', sans-serif;
  --container-w:1180px;
  --header-h:70px;
  --transition: .3s ease;
}

*{margin:0;padding:0;box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{font-family:var(--font-body);color:var(--color-text);line-height:1.65;overflow-x:hidden;}
img{max-width:100%;display:block;}
a{text-decoration:none;color:inherit;}
ul{list-style:none;}
.container{width:100%;max-width:var(--container-w);margin:0 auto;padding:0 20px;}
h1,h2,h3,h4{font-family:var(--font-heading);color:var(--color-primary-dark);line-height:1.25;}
section{scroll-margin-top: var(--header-h);}

/* ===== BUTTONS ===== */
.btn{display:inline-flex;align-items:center;gap:8px;padding:13px 28px;border-radius:6px;font-weight:600;font-size:.95rem;transition:var(--transition);border:2px solid transparent;cursor:pointer;white-space:nowrap;}
.btn-accent{background:var(--color-accent);color:#fff;}
.btn-accent:hover{background:var(--color-accent-dark);transform:translateY(-2px);box-shadow:0 12px 26px rgba(14,107,99,.4);}
.btn-outline{border-color:rgba(255,255,255,.8);color:#fff;}
.btn-outline:hover{background:#fff;color:var(--color-primary-dark);}
.btn-primary{background:var(--color-primary);color:#fff;margin-top:10px;}
.btn-primary:hover{background:var(--color-primary-dark);transform:translateY(-2px);}
.btn-sm{padding:9px 18px;font-size:.85rem;}

/* ===== HEADER ===== */
.site-header{position:relative;z-index:600;}

.header-top{position:relative;z-index:1200;background:#fff;padding:20px 0;border-bottom:1px solid #eef2f1;}
.header-top-inner{display:flex;align-items:center;justify-content:space-between;gap:30px;}
.brand img{height:126px;width:auto;transition:var(--transition);}

.header-contact{display:flex;gap:34px;align-items:center;}
.header-contact-item{display:flex;align-items:center;gap:12px;}
.header-contact-item i{font-size:1.6rem;color:var(--color-accent-dark);}
.header-contact-item span{display:block;font-size:.72rem;color:var(--color-text-light);text-transform:uppercase;letter-spacing:.5px;}
.header-contact-item strong{display:block;font-size:1rem;color:var(--color-primary-dark);font-weight:700;}

.main-nav-bar{background:var(--color-primary-darker);position:sticky;top:0;z-index:500;}
.site-header.scrolled .main-nav-bar{box-shadow:0 10px 26px rgba(0,0,0,.25);}
.nav-bar-inner{display:flex;justify-content:center;}

.main-nav > ul{display:flex;align-items:stretch;}
.main-nav > ul > li{position:relative;}
.main-nav > ul > li > a{display:flex;align-items:center;gap:6px;height:var(--header-h);padding:0 24px;font-weight:600;font-size:.86rem;letter-spacing:.6px;text-transform:uppercase;color:#fff;transition:var(--transition);}
.main-nav > ul > li > a i{font-size:.65rem;transition:transform var(--transition);}
.main-nav > ul > li:hover > a{background:rgba(255,255,255,.08);}
.main-nav > ul > li.is-active > a{background:var(--color-accent);}
.main-nav > ul > li:hover > a i{transform:rotate(180deg);}

/* mega menu */
.mega-menu{position:absolute;top:100%;left:50%;transform:translateX(-50%) translateY(10px);width:100vw;box-sizing:border-box;background:#fff;box-shadow:0 24px 60px rgba(0,0,0,.16);border-radius:14px;padding:38px max(20px, calc((100vw - var(--container-w)) / 2));display:grid;grid-template-columns:repeat(3,1fr);gap:36px 48px;opacity:0;visibility:hidden;transition:opacity var(--transition), transform var(--transition), visibility var(--transition);z-index:50;}
.has-mega:hover .mega-menu{opacity:1;visibility:visible;transform:translateX(-50%) translateY(0);}
.mega-col{min-width:0;}
.mega-col-img{width:100%;aspect-ratio:2.1/1;height:auto;object-fit:cover;border-radius:8px;margin-bottom:16px;}
.mega-col h4{font-size:1rem;color:var(--color-primary);margin-bottom:16px;display:flex;align-items:center;gap:8px;padding-bottom:12px;border-bottom:1px solid #eef2f1;}
.mega-col ul li{margin-bottom:0;}
.mega-col ul li a{display:block;font-size:.88rem;color:var(--color-text-light);transition:var(--transition);padding:4px 0 4px 16px;position:relative;}
.mega-col ul li a::before{content:'';position:absolute;left:0;top:50%;transform:translateY(-50%);width:5px;height:5px;border-radius:50%;background:var(--color-accent);}
.mega-col ul li a:hover{color:var(--color-accent-dark);padding-left:20px;}

.nav-toggle{display:none;flex-direction:column;justify-content:center;gap:5px;width:34px;height:30px;background:none;border:none;cursor:pointer;position:relative;z-index:1100;}
.nav-toggle span{display:block;height:2px;background:var(--color-primary-dark);border-radius:2px;transition:var(--transition);}
.nav-toggle.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle.is-open span:nth-child(2){opacity:0;}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

/* ===== HERO ===== */
/*.hero{position:relative;height:78vh;min-height:600px;}*/
.hero {
    position: relative;
    height: 65vh;
    min-height: 500px;
}
.hero-slider{position:relative;width:100%;height:100%;overflow:hidden;}
.hero-slide{position:absolute;inset:0;overflow:hidden;opacity:0;visibility:hidden;transition:opacity 1.1s ease,visibility 1.1s;background-color:#f2f1ee;background-size:contain;background-repeat:no-repeat;background-position:center;}
.hero-slide.is-active{opacity:1;visibility:visible;z-index:1;}
.hero-overlay{position:absolute;inset:0;background:linear-gradient(100deg,rgba(4,34,32,.82) 0%,rgba(4,34,32,.55) 45%,rgba(4,34,32,.35) 100%);}
.hero-content{position:relative;height:100%;display:flex;flex-direction:column;justify-content:center;max-width:420px;margin:0 0 0 160px;color:#fff;z-index:2;}
.mobile-contact{display:none;}
.hero-eyebrow{display:inline-block;color:var(--color-accent);font-weight:700;letter-spacing:2px;font-size:.85rem;margin-bottom:18px;}
.hero-content h1,.hero-content h2{font-family:var(--font-display);font-size:3.2rem;font-weight:700;font-style:italic;color:#fff;margin-bottom:18px;}
.hero-content p{font-size:1.1rem;color:#dfece9;max-width:540px;margin-bottom:32px;}
.hero-buttons{display:flex;gap:16px;}

.hero-slide [data-anim]{opacity:0;transform:translateY(24px);}
.hero-slide.is-active [data-anim]{animation:fadeUp .8s ease forwards;}
.hero-slide.is-active [data-anim]:nth-child(1){animation-delay:.15s;}
.hero-slide.is-active [data-anim]:nth-child(2){animation-delay:.32s;}
.hero-slide.is-active [data-anim]:nth-child(3){animation-delay:.5s;}
.hero-slide.is-active [data-anim]:nth-child(4){animation-delay:.68s;}
@keyframes fadeUp{to{opacity:1;transform:translateY(0);}}

.hero-arrow{position:absolute;top:50%;transform:translateY(-50%);width:48px;height:48px;border-radius:50%;border:1px solid rgba(255,255,255,.5);background:rgba(4,34,32,.45);color:#fff;font-size:1.1rem;cursor:pointer;transition:var(--transition);z-index:5;backdrop-filter:blur(4px);}
.hero-arrow:hover{background:var(--color-accent);}
.hero-arrow.prev{left:30px;}
.hero-arrow.next{right:30px;}
.hero-visual-wrap{position:absolute;inset:0;z-index:4;display:flex;align-items:center;pointer-events:none;}
.hero-visual-inner{display:flex;justify-content:flex-end;width:100%;}
.hero-visual{display:grid;grid-template-columns:repeat(3,190px);gap:22px;}
.hero-card{width:190px;height:190px;border-radius:16px;overflow:hidden;position:relative;box-shadow:0 16px 32px rgba(0,0,0,.4);border:3px solid rgba(255,255,255,.25);animation:floatTile 4s ease-in-out infinite;background:#fff;}
.hero-card:nth-child(2){animation-delay:.3s;}
.hero-card:nth-child(3){animation-delay:.6s;}
.hero-card:nth-child(4){animation-delay:.9s;}
.hero-card:nth-child(5){animation-delay:1.2s;}
.hero-card:nth-child(6){animation-delay:1.5s;}
.hero-card img{position:absolute;inset:0;width:100%;height:100%;object-fit:contain;padding:14px;box-sizing:border-box;background:#fff;}
@keyframes floatTile{0%,100%{transform:rotate(var(--tilt,0deg)) translateY(0);}50%{transform:rotate(var(--tilt,0deg)) translateY(-10px);}}

/* ===== QUOTE BANNER ===== */
.quote-banner{position:relative;background:var(--color-primary);padding:46px 0;overflow:hidden;}
.quote-banner::before{content:'';position:absolute;width:360px;height:360px;border-radius:50%;background:radial-gradient(circle,rgba(226,169,59,.22),transparent 70%);top:-160px;left:-100px;}
.quote-banner::after{content:'';position:absolute;width:300px;height:300px;border-radius:50%;background:radial-gradient(circle,rgba(255,255,255,.08),transparent 70%);bottom:-150px;right:-80px;}
.quote-banner p{position:relative;z-index:2;color:#fff;text-align:center;font-family:var(--font-heading);font-size:1.3rem;font-weight:500;max-width:850px;margin:0 auto;line-height:1.6;}

/* ===== SCROLL REVEAL ===== */
.reveal{opacity:0;transform:translateY(28px);transition:opacity .7s ease, transform .7s ease;}
.reveal.is-visible{opacity:1;transform:translateY(0);}
.why-grid .why-card:nth-child(2),.ref-grid .ref-card:nth-child(2),.stats-inner .stat-item:nth-child(2){transition-delay:.08s;}
.why-grid .why-card:nth-child(3),.ref-grid .ref-card:nth-child(3),.stats-inner .stat-item:nth-child(3){transition-delay:.16s;}
.why-grid .why-card:nth-child(4),.ref-grid .ref-card:nth-child(4),.stats-inner .stat-item:nth-child(4){transition-delay:.24s;}
.ref-grid .ref-card:nth-child(5){transition-delay:.32s;}

/* ===== SECTION HEAD ===== */
.section-head{text-align:center;max-width:680px;margin:0 auto 50px;}
.section-eyebrow{display:inline-block;color:var(--color-accent-dark);font-weight:700;letter-spacing:2px;font-size:.82rem;margin-bottom:12px;text-transform:uppercase;}
.section-head h2{font-size:2.1rem;margin-bottom:14px;}
.section-head p{color:var(--color-text-light);}

/* ===== ABOUT ===== */
.about{padding:90px 0 0;background:#fff;}
.about-inner{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center;}
.about-text .section-eyebrow{margin-bottom:14px;}
.about-text h2{font-size:2.1rem;margin-bottom:20px;}
.about-text p{color:var(--color-text-light);margin-bottom:16px;}
.about-gallery{position:relative;height:520px;}
.about-gallery img{position:absolute;border-radius:12px;object-fit:cover;box-shadow:0 20px 40px rgba(0,0,0,.15);}
.about-gallery .img-b{width:100%;height:100%;top:0;left:0;}
.about-gallery .carousel-img{opacity:0;transition:opacity 1s ease;object-fit:contain;background:#fff;padding:30px;box-sizing:border-box;}
.about-gallery .carousel-img.is-active{opacity:1;}
.about-badge{position:absolute;bottom:24px;left:24px;z-index:2;background:#fff;padding:16px 24px;border-radius:12px;box-shadow:0 14px 30px rgba(0,0,0,.2);text-align:center;}
.about-badge strong{display:block;font-family:var(--font-heading);font-size:1.9rem;font-weight:800;color:var(--color-primary);line-height:1;}
.about-badge span{font-size:.78rem;color:var(--color-text-light);font-weight:600;}

.stats{background:var(--color-primary-dark);margin-top:80px;}
.stats-inner{display:grid;grid-template-columns:repeat(4,1fr);text-align:center;padding:46px 20px;}
.stat-item{color:#fff;border-right:1px solid rgba(255,255,255,.12);}
.stat-item:last-child{border-right:none;}
.stat-number{font-family:var(--font-heading);font-size:2.6rem;font-weight:800;color:var(--color-accent);}
.stat-plus{font-size:1.6rem;font-weight:700;color:var(--color-accent);}
.stat-item p{color:#cfe7e3;font-size:.92rem;margin-top:6px;}


/* ===== REFERANSLAR (home carousel) ===== */
.referanslar{padding:90px 0;background:#fff;overflow:hidden;}
.ref-carousel{overflow:hidden;position:relative;padding:10px 0;-webkit-mask-image:linear-gradient(90deg,transparent,#000 8%,#000 92%,transparent);mask-image:linear-gradient(90deg,transparent,#000 8%,#000 92%,transparent);}
.ref-track{display:flex;gap:36px;width:max-content;animation:refScroll 32s linear infinite;}
@keyframes refScroll{from{transform:translateX(0);}to{transform:translateX(-50%);}}
.ref-logo{flex:0 0 auto;width:180px;height:104px;background:var(--color-bg-soft);border-radius:12px;display:flex;align-items:center;justify-content:center;padding:14px;box-shadow:0 4px 14px rgba(0,0,0,.05);transition:var(--transition);}
.ref-logo:hover{transform:translateY(-4px);box-shadow:0 12px 26px rgba(14,107,99,.14);}
.ref-logo img{max-width:100%;max-height:100%;object-fit:contain;}
.ref-logo.dark-tile{background:#2b3433;}

/* ===== REFERANSLAR (full page grid) ===== */
.referanslar-page{padding:90px 0;background:#fff;}
.ref-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.ref-card{background:#fff;border:1px solid #eef2f1;border-radius:14px;padding:34px 24px;display:flex;align-items:center;justify-content:center;height:140px;transition:var(--transition);}
.ref-card:hover{transform:translateY(-6px);box-shadow:0 16px 30px rgba(14,107,99,.12);border-color:transparent;}
.ref-card img{max-width:100%;max-height:100%;object-fit:contain;}
.ref-card.dark-tile{background:#2b3433;}
.logo-zoom img{transform:scale(1.22);}

/* ===== PRODUCT EXPLORER ===== */
.product-explorer{padding:90px 0;background:#fff;}
.product-explorer-inner{display:grid;grid-template-columns:280px 1fr;gap:36px;align-items:start;}
.product-sidebar{background:var(--color-bg-soft);border-radius:14px;padding:28px;position:sticky;top:calc(var(--header-h) + 20px);max-height:calc(100vh - var(--header-h) - 40px);overflow-y:auto;}
.sidebar-category{margin-bottom:28px;}
.sidebar-category:last-child{margin-bottom:0;}
.sidebar-category h4{display:flex;align-items:center;gap:10px;font-size:.95rem;color:var(--color-primary);margin-bottom:14px;padding-bottom:10px;border-bottom:2px solid rgba(14,107,99,.15);}
.sidebar-category-link{display:flex;align-items:center;gap:10px;color:inherit;cursor:pointer;}
.sidebar-category-link:hover{color:var(--color-accent-dark);}
.sidebar-sublist li{margin-bottom:2px;}
.sidebar-sublist a{display:block;padding:9px 12px;border-radius:8px;font-size:.87rem;color:var(--color-text-light);transition:var(--transition);}
.sidebar-sublist a:hover{background:#fff;color:var(--color-primary);}
.sidebar-sublist a.active{background:var(--color-primary);color:#fff;font-weight:600;}

.product-display{background:var(--color-bg-soft);border-radius:16px;overflow:hidden;}
.product-display-img-wrap{height:400px;overflow:hidden;background:#ffffff;display:flex;align-items:center;justify-content:center;border:1px solid #eef2f1;}
.product-display-img-wrap img{max-width:100%;max-height:100%;width:auto;height:auto;object-fit:contain;}
.product-display-body{padding:34px;}
.product-display-body h3{font-size:1.7rem;margin:10px 0 14px;}
.product-display-body p{color:var(--color-text-light);margin-bottom:22px;line-height:1.7;}

/* ===== PAGE BANNER ===== */
.page-banner{position:relative;height:300px;display:flex;align-items:center;background-image:url('../img/subheader.webp');background-size:cover;background-position:center;overflow:hidden;}
.page-banner-content{position:relative;z-index:2;color:#fff;}
.page-banner h1{font-family:var(--font-display);font-style:italic;color:#fff;font-size:2.6rem;margin-bottom:10px;}
.page-banner .breadcrumb{color:#dfece9;font-size:.92rem;display:flex;align-items:center;gap:8px;}
.page-banner .breadcrumb a{color:var(--color-accent);}
.page-banner .breadcrumb i{font-size:.65rem;}
.page-banner-lead{color:#dfece9;font-size:1rem;max-width:560px;margin-bottom:14px;}

/* ===== BIG MAP ===== */
.map-big{line-height:0;}
.map-big-frame{display:block;width:100%;height:480px;border:0;}

/* ===== FOOTER VCARD / QR ===== */
.footer-vcard{display:flex;flex-direction:column;align-items:flex-start;gap:12px;}
.qr-box{background:#fff;padding:10px;border-radius:10px;display:inline-block;line-height:0;border:1px solid #eef2f1;}
.footer-vcard p{font-size:.85rem;color:#bcd8d4;}

/* ===== MISSION / VISION ===== */
.mv-grid{display:grid;grid-template-columns:1fr 1fr;gap:28px;}
.mv-card{background:#fff;padding:40px 34px;border-radius:14px;box-shadow:0 4px 14px rgba(0,0,0,.05);border-top:4px solid var(--color-primary);}
.mv-card i{font-size:1.9rem;color:var(--color-primary);margin-bottom:16px;}
.mv-card h3{font-size:1.3rem;margin-bottom:14px;}
.mv-card p{color:var(--color-text-light);}

/* ===== VALUE CHIPS (compact, used on homepage) ===== */
.value-chips{display:flex;flex-wrap:wrap;gap:12px;margin-top:32px;}
.value-chip{display:flex;align-items:center;gap:9px;background:var(--color-bg-soft);border:1px solid rgba(14,107,99,.15);padding:10px 18px;border-radius:30px;font-size:.86rem;font-weight:600;color:var(--color-primary-dark);}
.value-chip i{color:var(--color-primary);font-size:.95rem;}

/* ===== ICON GRID (values / faaliyet alanlari, used on hakkimizda page) ===== */
.icon-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;}
.icon-grid-item{display:flex;align-items:center;gap:14px;background:#fff;padding:20px 22px;border-radius:10px;box-shadow:0 4px 14px rgba(0,0,0,.05);transition:var(--transition);}
.icon-grid-item:hover{transform:translateY(-4px);box-shadow:0 10px 24px rgba(0,0,0,.08);}
.icon-grid-item i{font-size:1.15rem;color:#fff;background:var(--color-primary);width:42px;height:42px;min-width:42px;border-radius:50%;display:flex;align-items:center;justify-content:center;}
.icon-grid-item span{font-weight:600;font-size:.94rem;color:var(--color-text);}

/* ===== WHY US ===== */
.why-us{padding:90px 0;background:var(--color-bg-soft);}
.why-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.why-card{background:#fff;padding:38px 26px;border-radius:12px;text-align:center;box-shadow:0 4px 14px rgba(0,0,0,.05);transition:var(--transition);}
.why-card:hover{transform:translateY(-6px);}
.why-card i{font-size:2.2rem;color:var(--color-primary);margin-bottom:18px;}
.why-card h4{margin-bottom:10px;font-size:1.1rem;}
.why-card p{color:var(--color-text-light);font-size:.92rem;}

/* ===== CTA BANNER ===== */
.cta-banner{background:linear-gradient(120deg,var(--color-primary-dark),var(--color-primary));padding:64px 0;}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap;}
.cta-inner h2{color:#fff;font-size:1.7rem;max-width:600px;}

/* ===== CONTACT ===== */
.contact{padding:90px 0;background:#fff;}
.contact-inner{display:grid;grid-template-columns:.85fr 1.15fr;gap:50px;}
.contact-card{display:flex;gap:16px;margin-bottom:22px;}
.contact-card i{width:46px;height:46px;flex-shrink:0;background:rgba(14,107,99,.1);color:var(--color-primary);border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:1.1rem;}
.contact-card h4{font-size:1rem;margin-bottom:4px;}
.contact-card p, .contact-card a{color:var(--color-text-light);font-size:.92rem;}
.contact-social{display:flex;gap:12px;margin:20px 0 26px;}
.contact-social a{width:38px;height:38px;border-radius:50%;background:var(--color-primary);color:#fff;display:flex;align-items:center;justify-content:center;transition:var(--transition);}
.contact-social a:hover{background:var(--color-accent);}
.contact-vcard{margin-top:26px;}
.contact-vcard p{color:var(--color-text-light);font-size:.88rem;margin:12px 0 12px;}

.contact-form{background:var(--color-bg-soft);padding:36px;border-radius:14px;display:flex;flex-direction:column;gap:16px;}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px;}
.contact-form input, .contact-form textarea{width:100%;padding:14px 16px;border:1px solid #dfe6e5;border-radius:8px;font-family:var(--font-body);font-size:.94rem;background:#fff;resize:vertical;transition:var(--transition);}
.contact-form input:focus, .contact-form textarea:focus{outline:none;border-color:var(--color-primary);}
.contact-form .btn{align-self:flex-start;}
.form-success{display:none;color:var(--color-primary);font-weight:600;font-size:.9rem;}
.form-success.show{display:block;}

/* ===== FOOTER ===== */
.site-footer{background:var(--color-primary-darker);color:#bcd8d4;padding:70px 0 0;}
.footer-inner{display:grid;grid-template-columns:1.2fr .9fr .9fr 1fr .9fr;gap:36px;padding-bottom:50px;}
.footer-brand img{height:92px;margin-bottom:18px;}
.footer-brand p{font-size:.9rem;line-height:1.7;margin-bottom:18px;}
.footer-social{display:flex;gap:12px;}
.footer-social a{width:36px;height:36px;border-radius:50%;background:rgba(255,255,255,.08);display:flex;align-items:center;justify-content:center;color:#fff;transition:var(--transition);}
.footer-social a:hover{background:var(--color-accent);}
.footer-col h4{color:#fff;font-size:1.02rem;margin-bottom:20px;}
.footer-col ul li{margin-bottom:12px;}
.footer-col ul li a{font-size:.9rem;color:#bcd8d4;transition:var(--transition);}
.footer-col ul li a:hover{color:var(--color-accent);}
.footer-contact li{display:flex;align-items:flex-start;gap:10px;font-size:.9rem;}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding:22px 0;text-align:center;font-size:.85rem;}
.footer-credit{margin-top:6px;font-size:.8rem;opacity:.7;}
.footer-credit a{color:#fff;}
.footer-credit a:hover{text-decoration:underline;}

/* ===== FLOATING BUTTONS ===== */
.whatsapp-float{position:fixed;bottom:26px;right:26px;width:58px;height:58px;background:#25d366;color:#fff;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:1.7rem;box-shadow:0 8px 20px rgba(0,0,0,.25);z-index:900;animation:pulse 2.2s infinite;}
@keyframes pulse{0%{box-shadow:0 0 0 0 rgba(37,211,102,.55);}70%{box-shadow:0 0 0 14px rgba(37,211,102,0);}100%{box-shadow:0 0 0 0 rgba(37,211,102,0);}}
.back-to-top{position:fixed;bottom:96px;right:30px;width:44px;height:44px;border-radius:50%;background:var(--color-primary-dark);color:#fff;border:none;font-size:1rem;cursor:pointer;opacity:0;visibility:hidden;transform:translateY(10px);transition:var(--transition);z-index:900;}
.back-to-top.show{opacity:1;visibility:visible;transform:translateY(0);}

/* ===== RESPONSIVE ===== */
@media (max-width:1300px){
  .hero-visual-wrap{display:none;}
}

@media (max-width:1024px){
  .about-inner{grid-template-columns:1fr;}
  .about-gallery{height:340px;margin-top:20px;}
  .why-grid{grid-template-columns:repeat(2,1fr);}
  .contact-inner{grid-template-columns:1fr;}
  .icon-grid{grid-template-columns:repeat(2,1fr);}
}

@media (max-width:880px){
  .header-top{padding:14px 0;}
  .brand img{height:64px;}
  .header-contact{display:none;}
  .nav-toggle{display:flex;}
  .main-nav-bar{background:transparent;position:static;}
  .nav-bar-inner{display:block;}
  .main-nav{position:fixed;top:0;left:0;right:0;bottom:0;background:#fff;transform:translateX(-100%);transition:transform var(--transition);overflow-y:auto;padding:90px 0 30px;z-index:1000;}
  .main-nav.is-open{transform:translateX(0);}
  body.nav-open{overflow:hidden;}
  .hero-content{margin:0;max-width:100%;padding:0 24px;}
  .mobile-contact{display:flex;flex-direction:column;gap:14px;padding:20px 24px 0;margin-top:10px;border-top:1px solid #eee;}
  .mobile-contact a{display:flex;align-items:center;gap:10px;color:var(--color-primary-dark);font-weight:600;font-size:.95rem;}
  .mobile-contact a i{color:var(--color-accent-dark);font-size:1.1rem;width:20px;text-align:center;}
  .main-nav > ul{flex-direction:column;align-items:stretch;}
  .main-nav > ul > li > a{height:auto;padding:16px 24px;justify-content:space-between;border-bottom:1px solid #eee;color:var(--color-text);}
  .main-nav > ul > li.is-active > a{background:none;color:var(--color-accent-dark);}
  .main-nav > ul > li:hover > a{background:none;color:var(--color-primary);}
  .mega-menu{position:static;opacity:1;visibility:visible;transform:none;width:100%;max-width:100%;box-shadow:none;display:none;flex-direction:column;padding:10px 24px 20px;border-radius:0;}
  .has-mega.is-open .mega-menu{display:flex;}
  .has-mega:hover .mega-menu{transform:none;}
  .mega-col{margin-bottom:22px;}
  .mega-col-img{height:80px;}
  .stats-inner{grid-template-columns:repeat(2,1fr);gap:30px;}
  .stat-item{border-right:none;}
  .ref-grid{grid-template-columns:repeat(3,1fr);}
  .why-grid{grid-template-columns:1fr;}
  .mv-grid{grid-template-columns:1fr;}
  .icon-grid{grid-template-columns:1fr;}
  .footer-inner{grid-template-columns:1fr 1fr;}
  .page-banner{height:220px;}
  .map-big-frame{height:320px;}
  .product-explorer-inner{grid-template-columns:1fr;}
  .product-sidebar{position:static;max-height:none;overflow-y:visible;padding:16px 20px;}
  .product-display-img-wrap{height:300px;}
  .product-explorer{padding:50px 0;}
  /* hero: sabit yükseklik yerine görsel oranı — mobilde dev boş alan kalmasın */
  .hero{height:auto;min-height:0;aspect-ratio:16/9;}
  /* sidebar kategorileri mobilde akordeon */
  .sidebar-category{margin-bottom:0;border-bottom:1px solid rgba(14,107,99,.12);}
  .sidebar-category:last-child{border-bottom:none;}
  .sidebar-category h4{margin-bottom:0;padding:14px 28px 14px 0;border-bottom:none;position:relative;cursor:pointer;user-select:none;}
  .sidebar-category h4::after{content:"\f078";font-family:"Font Awesome 6 Free";font-weight:900;position:absolute;right:4px;top:50%;transform:translateY(-50%);font-size:.75rem;color:var(--color-primary);transition:transform .25s ease;}
  .sidebar-category.is-open h4::after{transform:translateY(-50%) rotate(180deg);}
  .sidebar-category .sidebar-sublist{display:none;padding-bottom:12px;}
  .sidebar-category.is-open .sidebar-sublist{display:block;}
}

@media (max-width:576px){
  .hero-content h1,.hero-content h2{font-size:2.1rem;}
  .hero-buttons{flex-direction:column;align-items:flex-start;}
  .hero-arrow{width:36px;height:36px;font-size:.9rem;}
  .hero-arrow.prev{left:10px;}
  .hero-arrow.next{right:10px;}
  .form-row{grid-template-columns:1fr;}
  .footer-inner{grid-template-columns:1fr;}
  .ref-grid{grid-template-columns:repeat(2,1fr);}
  .ref-logo{width:150px;height:90px;}
  .cta-inner{flex-direction:column;text-align:center;}
  .stats-inner{grid-template-columns:1fr 1fr;}
  .page-banner{height:190px;}
  .page-banner h1{font-size:1.8rem;}
  .map-big-frame{height:260px;}
}