:root {
    --primary: #0d6efd;       /* Ana renk */
    --secondary: #6c757d;     /* İkincil renk */
    --light: #f8f9fa;         /* Açık arka plan */
    --dark: #343a40;          /* Koyu yazı */
    --card-radius: 15px;      /* Kart köşe yarıçapı */
    --card-shadow: 0 8px 20px rgba(0,0,0,0.15); /* Kart gölge */
    --card-hover-shadow: 0 20px 40px rgba(0,0,0,0.25); /* Hover gölge */
    --card-transition: 0.4s ease; /* Hover geçiş */
}

body {
    font-family: 'Open Sans', sans-serif;
    background-color: var(--light);
}


/* Premium Card Tüm Site */
.card-premium, .feature-card, .stat-card {
    background: #fff;
    border-radius: 15px;
    overflow: hidden;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    box-shadow: 0 5px 15px rgba(0,0,0,0.08);
    position: relative;
}

.card-premium:hover, 
.feature-card:hover, 
.stat-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 35px rgba(0,0,0,0.2);
}

/* Kart içindeki img */
.card-premium img, .feature-card img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s ease;
}

.card-premium:hover img, .feature-card:hover img {
    transform: scale(1.05);
}

/* Kart içindeki ikonlar */
.card-premium i, .feature-card i, .stat-card i {
    transition: transform 0.3s ease;
}

.card-premium:hover i, .feature-card:hover i, .stat-card:hover i {
    transform: scale(1.2);
}

/* Card içindeki başlık ve metin */
.card-premium h3, .stat-card h3 {
    font-size: 1.8rem;
    margin-bottom: 0.5rem;
}

.card-premium p, .stat-card p, .feature-card p {
    font-size: 0.95rem;
    line-height: 1.5;
    color: var(--dark);
}

/* Overlay efektleri (feature kartlarda) */
.feature-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(13,110,253,0.5);
    opacity: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    padding: 1rem;
    transition: opacity 0.4s ease;
}

.feature-card:hover .feature-overlay {
    opacity: 1;
}


/* Topbar Premium */
.topbar {
    background: linear-gradient(90deg, #ffffff, #f1f5f9);
    box-shadow: 0 5px 20px rgba(0,0,0,0.1);
    font-size: 0.95rem;
    position: relative;
    z-index: 1050;
}

.topbar span, .topbar a {
    color: var(--dark);
    transition: color 0.3s, transform 0.3s;
}

.topbar a:hover {
    color: var(--primary);
    transform: translateY(-2px);
}

.topbar-social .btn {
    width: 35px;
    height: 35px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0;
    font-size: 0.9rem;
    transition: all 0.3s ease;
}

.topbar-social .btn:hover {
    transform: translateY(-3px) scale(1.1);
    box-shadow: 0 5px 15px rgba(0,0,0,0.2);
}




/* Navbar Başlangıç yüksekliği */
.premium-navbar {
    background: linear-gradient(90deg, #0F172A, #354257);
    transition: all 0.4s ease;
    box-shadow: 0 8px 25px rgba(0,0,0,0.15);
    padding: 1.2rem 0; /* Başlangıç yüksekliği */
}

/* Navbar scroll sonrası küçülme */
.premium-navbar.scrolled {
    padding: 0.4rem 0; /* Küçültülmüş yüksekliği */
    box-shadow: 0 12px 30px rgba(0,0,0,0.2);
}

/* Nav link stilleri (aynı) */
.premium-navbar .nav-link {
    font-weight: 500;
    margin: 0 0.3rem;
    color: white;
    position: relative;
    transition: all 0.3s ease;
}

.premium-navbar .nav-link::after {
    content: '';
    position: absolute;
    width: 0%;
    height: 2px;
    bottom: 5px;
    left: 0;
    background-color: white;
    transition: width 0.3s ease;
}

.premium-navbar .nav-link:hover::after {
    width: 100%;
}

.premium-navbar .nav-link.active {
    color: var(--primary);
    font-weight: 600;
}

/* Hamburger ikon ve çerçeve */
.navbar-toggler {
    border-color: #ffffff;
}

.navbar-toggler:focus {
    box-shadow: none;
}

.navbar-toggler-icon {
    filter: invert(1);
}

/* Logo yüksekliği transition ile */
.premium-navbar .navbar-brand img {
    transition: height 0.4s ease;
}

/* Scroll sonrası logo küçülme */
.premium-navbar.scrolled .navbar-brand img {
    height: 40px; /* Küçültülmüş logo yüksekliği */
}





.hero-section {
    position: relative;
    min-height: 500px;
    background: url('img/hero.jpg') center/cover no-repeat;}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(13, 110, 253, 0); /* Yarı saydam overlay */
    z-index: 1;
}

.hero-section .container {
    position: relative;
    z-index: 2;
}

.hero-section h1 {
    font-size: 3rem;
    font-weight: 700;
    text-shadow: 2px 2px 8px rgba(0,0,0,0.5);
}

.hero-section p {
    font-size: 1.25rem;
    text-shadow: 1px 1px 6px rgba(0,0,0,0.4);
}

.hero-section .btn {
    padding: 0.8rem 2rem;
    font-size: 1.1rem;
    border-radius: 50px;
    transition: transform 0.3s, box-shadow 0.3s;
}

.hero-section .btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.3);
}

/* İçerik alta itilir */
.hero-content {
    min-height: 500px;
    padding-bottom: 70px; /* butonun alttan boşluğu */
}

/* Buton ekstra hizalama */
.hero-btn {
    margin-top: auto;
}






.feature-card {
    height: 350px;
    overflow: hidden;
    position: relative;
    cursor: pointer;
    transition: transform 0.4s ease, box-shadow 0.4s ease;
}

.feature-card img {
    transition: transform 0.5s ease;
}

.feature-card:hover img {
    transform: scale(1.1);
}

.feature-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(13,110,253,0.5); /* yarı saydam overlay */
    opacity: 0;
    transition: opacity 0.4s ease;
}

.feature-card:hover .feature-overlay {
    opacity: 1;
}

.feature-overlay i {
    color: #fff;
    transition: transform 0.4s ease;
}

.feature-card:hover .feature-overlay i {
    transform: scale(1.2);
}



.cta-card {
    background: linear-gradient(135deg, var(--primary), #0b5ed7);
    transition: transform 0.4s, box-shadow 0.4s;
    backdrop-filter: blur(6px);
}

.cta-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 20px 45px rgba(0,0,0,0.3);
}

/* Glow efekti */
.cta-glow {
    position: absolute;
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, rgba(255,255,255,0.25), transparent 70%);
    top: -100px;
    right: -100px;
    z-index: 1;
}

/* Büyük arka plan ikon */
.cta-icon-bg {
    position: absolute;
    bottom: -20px;
    left: 20px;
    font-size: 6rem;
    color: rgba(255,255,255,0.1);
    z-index: 1;
}

/* Yazılar üstte kalsın */
.cta-card .row {
    position: relative;
    z-index: 2;
}

/* Buton premium hover */
.cta-card .btn {
    transition: all 0.3s ease;
}

.cta-card .btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 25px rgba(0,0,0,0.25);
}

/* Responsive başlık */
@media (max-width: 768px) {
    .cta-card h2 {
        font-size: 1.6rem;
    }
}




#yorumlar .card-premium {
    background: #fff;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    transition: transform 0.3s, box-shadow 0.3s;
}

#yorumlar .card-premium:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 35px rgba(0,0,0,0.2);
}

#yorumlar i.fas.fa-quote-left {
    font-size: 2rem;
}

#yorumlar .text-warning i {
    margin-right: 2px;
}

.carousel-control-prev-icon,
.carousel-control-next-icon {
    width: 40px;
    height: 40px;
}






footer {
    background: linear-gradient(90deg, #0F172A, #354257);
    color: #fff;
    position: relative;
    overflow: hidden;
}

footer a {
    transition: color 0.3s;
}

footer a:hover {
    color: #ffc107;
    text-decoration: none;
}

footer .btn-square {
    width: 40px;
    height: 40px;
    padding: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform 0.3s, box-shadow 0.3s;
}

footer .btn-square:hover {
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(0,0,0,0.2);
}



/*	Alt sayfalar için hero	*/
.sub-hero {
    min-height: 320px;
    background: url("img/hero-sub.jpg") center/cover no-repeat;
    position: relative;
}

.sub-hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(
        135deg,
        rgba(15, 23, 42, 0.85),
        rgba(13, 110, 253, 0.65)
    );
    z-index: 1;
}

.sub-hero h1 {
    font-size: 2.2rem;
}

.breadcrumb a {
    text-decoration: none;
}

.breadcrumb a:hover {
    color: var(--primary);
}


/*	Alt sayfalar için Kurumsal Vizyon & Misyon	*/
#vizyon-misyon {
    background: #f8f9fa;
}

#vizyon-misyon h2 {
    font-size: 2rem;
}

#vizyon-misyon p {
    font-size: 1rem;
    color: var(--dark);
}

#vizyon-misyon .card-premium {
    background: #fff;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    transition: transform 0.3s, box-shadow 0.3s;
}

#vizyon-misyon .card-premium:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 35px rgba(0,0,0,0.2);
}

#vizyon-misyon i {
    transition: transform 0.3s;
}

#vizyon-misyon .card-premium:hover i {
    transform: scale(1.1);
}



/* Alt sayfalar için Neden Biz? */
#neden-biz {
    background: #fff;
}

#neden-biz h2 {
    font-size: 2rem;
}

#neden-biz p {
    color: var(--dark);
}

#neden-biz .card-premium {
    background: linear-gradient(145deg, #ffffff, #f8f9fa);
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    transition: transform 0.3s, box-shadow 0.3s;
}

#neden-biz .card-premium:hover {
    transform: translateY(-6px);
    box-shadow: 0 18px 40px rgba(0,0,0,0.2);
}

#neden-biz .card-premium i {
    transition: transform 0.3s, color 0.3s;
}

#neden-biz .card-premium:hover i {
    transform: scale(1.2);
    color: var(--primary);
}

#neden-biz .card-premium h5 {
    font-size: 1.2rem;
    margin-bottom: 0.75rem;
}

#neden-biz .card-premium p {
    font-size: 0.95rem;
    color: #555;
}




/* Alt sayfalar için Genel Özellikler Grid */
#genel-ozellikler {
    background: #f8f9fa;
}

#genel-ozellikler h2 {
    font-size: 2rem;
}

#genel-ozellikler .card-premium {
    background: linear-gradient(145deg, #ffffff, #f1f5f9);
    border-radius: 14px;
    box-shadow: 0 8px 25px rgba(0,0,0,0.1);
    transition: transform 0.3s, box-shadow 0.3s;
}

#genel-ozellikler .card-premium:hover {
    transform: translateY(-5px);
    box-shadow: 0 14px 35px rgba(0,0,0,0.18);
}

#genel-ozellikler i {
    transition: transform 0.3s;
}

#genel-ozellikler .card-premium:hover i {
    transform: scale(1.15);
}





/* Alt sayfalar için Dayanıklılık & Malzeme Kalitesi */
#dayaniklilik {
    background: linear-gradient(180deg, #ffffff, #f8f9fa);
}

#dayaniklilik .material-card {
    background: #fff;
    border-radius: 14px;
    box-shadow: 0 8px 25px rgba(0,0,0,0.08);
    transition: transform 0.3s, box-shadow 0.3s;
    position: relative;
    overflow: hidden;
}

#dayaniklilik .material-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 14px 35px rgba(0,0,0,0.18);
}

#dayaniklilik .icon-box {
    width: 60px;
    height: 60px;
    margin: 0 auto;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary), #0b5ed7);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 22px;
    transition: transform 0.3s;
}

#dayaniklilik .material-card:hover .icon-box {
    transform: scale(1.1) rotate(5deg);
}




/* Referanslar */
.ref-card {
    display: block;
    border-radius: 15px;
    overflow: hidden;
    position: relative;
}

.ref-img-wrapper {
    position: relative;
    overflow: hidden;
    border-radius: 15px;
}

.ref-img-wrapper img {
    transition: transform 0.4s ease;
    width: 100%;
    height: 250px;
    object-fit: cover;
}

.ref-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0,0,0,0.45);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.ref-overlay i {
    color: #fff;
    font-size: 2rem;
    transform: scale(0.8);
    transition: transform 0.3s ease;
}

.ref-card:hover img {
    transform: scale(1.08);
}

.ref-card:hover .ref-overlay {
    opacity: 1;
}

.ref-card:hover .ref-overlay i {
    transform: scale(1);
}




/* İletişim Kart */
.contact-card {
    background: #fff;
    border-radius: 20px;
    box-shadow: 0 10px 35px rgba(0,0,0,0.08);
}

.contact-list li {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    margin-bottom: 18px;
    font-size: 0.95rem;
}

.contact-list i {
    font-size: 1.1rem;
    margin-top: 3px;
}

.contact-list a {
    color: var(--dark);
    text-decoration: none;
    transition: 0.3s;
}

.contact-list a:hover {
    color: var(--primary);
}

/* Sosyal medya */
.contact-social a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 42px;
    height: 42px;
    border-radius: 12px;
    background: #f1f5f9;
    color: var(--dark);
    margin-right: 10px;
    transition: 0.3s;
    font-size: 1rem;
}

.contact-social a:hover {
    background: var(--primary);
    color: #fff;
    transform: translateY(-3px);
}

/* Harita Kart */
.map-card {
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 10px 35px rgba(0,0,0,0.08);
    height: 100%;
    display: flex;
    flex-direction: column;
}

.map-header {
    background: linear-gradient(135deg, var(--primary), #0b5ed7);
    color: #fff;
    padding: 14px 18px;
    font-weight: 600;
    display: flex;
    align-items: center;
}

.map-card iframe {
    flex: 1;
    min-height: 350px;
}




/*	WhatsApp ve Arama Yapma Butonları	*/
#action-buttons {
  position: fixed !important;
  bottom: 20px;
  right: 20px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  z-index: 99999; /* Daha yüksek katman */
  pointer-events: auto;
}

#action-buttons a,
#action-buttons button {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 55px;
  height: 55px;
  border-radius: 50%;
  text-decoration: none !important;
  background-color: #25d366;
  color: #fff;
  font-size: 24px;
  border: none;
  box-shadow: 0 4px 12px rgba(0,0,0,0.25);
  transition: transform 0.3s, box-shadow 0.3s;
}

/* Farklı buton renkleri */
#action-buttons .btn-phone { background-color: #007bff; }
#action-buttons .btn-back  { background-color: #ffc107; color: #000; }

/* Hover efekti */
#action-buttons a:hover,
#action-buttons button:hover {
  transform: translateY(-4px);
  box-shadow: 0 6px 16px rgba(0,0,0,0.35);
}

/* Mobil küçültme */
@media (max-width: 768px) {
  #action-buttons a,
  #action-buttons button {
    width: 40px;
    height: 40px;
    font-size: 18px;
  }
}

#btn-back-to-top {
  display: none;
}