:root {
    /* --- Renk Paleti --- */
    --primary-color: #a61d55;     /* Çizgi GD Bordo */
    --primary-hover: #8a1545;     /* Bordo Hover */
    --secondary-color: #1a4f6e;   /* EPM Mavi */
    --secondary-hover: #133b52;   /* Mavi Hover */
    --footer-bg-blue: #1f4e5f;    /* Footer Mavi */
    
    /* Metin Renkleri */
    --text-dark: #333333;
    --text-muted: #666666;
    --text-white: #ffffff;
    
    /* Arka Plan & Kenarlık */
    --bg-light: #f8f9fa;
    --border-radius: 8px;
    --btn-radius: 4px;
}

/* --- Özel Renk Sınıfları --- */

/* Oluşturduğunuz sınıf: */
.text-primary-custom {
    color: var(--primary-color) !important;
}

/* İsterseniz arka plan için de bir tane ekleyebilirsiniz: */
.bg-primary-custom {
    background-color: var(--primary-color) !important;
    color: var(--text-white) !important; /* Yazısı beyaz olsun */
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    color: var(--text-dark);
    line-height: 1.6;
    background-color: #fff;
    overflow-x: hidden;
    /* Yatay taşmayı engelle */
}

/* =========================================
   1. KATMAN: TOP BAR (En Üst Şerit)
   ========================================= */
.top-bar {
    background-color: var(--primary-color);
    color: var(--text-white);
    font-size: 0.85rem;
    padding: 7px 0;
    font-weight: 500;
}

.top-bar a {
    color: var(--text-white);
    text-decoration: none;
    transition: opacity 0.3s;
}

.top-bar a:hover {
    opacity: 0.8;
}

.top-bar i {
    margin-right: 5px;
    opacity: 0.9;
}

/* =========================================
   2. KATMAN: BRAND BAR (Logo ve Butonlar)
   ========================================= */
.brand-bar {
    background-color: #fff;
    padding: 0.5rem 0;
    border-bottom: 1px solid #eee;
    /* İnce ayırıcı çizgi */
}

.brand-bar .logo img {
    max-height: 80px;
    /* Logo yüksekliği optimize edildi */
}

/* Header Sağ Taraf Grubu */
.header-actions {
    display: flex;
    align-items: center;
    gap: 10px;
}

/* Arama İkonu */
.btn-search-icon {
    background: none;
    border: none;
    font-size: 1.2rem;
    color: #333;
    cursor: pointer;
    margin-right: 10px;
    transition: color 0.3s;
}

.btn-search-icon:hover {
    color: var(--primary-color);
}

/* --- Header Butonları --- */
.btn-custom {
    color: #fff;
    border: none;
    border-radius: var(--btn-radius);
    padding: 10px 20px;
    font-size: 0.9rem;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    text-decoration: none;
    transition: background-color 0.3s ease;
    white-space: nowrap;
}

.btn-custom i {
    margin-right: 8px;
    font-size: 1.1em;
}

.btn-primary-custom,
.btn-cizgi-primary,
.btn-header-info {
    background-color: var(--primary-color);
    color: #fff;
}

.btn-primary-custom:hover,
.btn-cizgi-primary:hover,
.btn-header-info:hover {
    background-color: var(--primary-hover);
    color: #fff;
}

.btn-secondary-custom,
.btn-header-dark {
    background-color: var(--secondary-color);
    color: #fff;
}

.btn-secondary-custom:hover,
.btn-header-dark:hover {
    background-color: var(--secondary-hover);
    color: #fff;
}

/* =========================================
   3. KATMAN: MAIN NAVBAR (Menü Şeridi)
   ========================================= */
.main-navbar {
    background-color: var(--primary-color);
    /* Zemin Bordo */
    padding: 0;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
}

.main-navbar.sticky-top {
    z-index: 1020;
}

.main-navbar .navbar-nav .nav-link {
    color: #fff !important;
    font-weight: 600;
    padding: 1rem 1.2rem;
    font-size: 0.95rem;
    transition: background-color 0.3s;
    position: relative;
}

.main-navbar .navbar-nav .nav-link:hover,
.main-navbar .navbar-nav .nav-link.active {
    background-color: rgba(255, 255, 255, 0.15);
    color: #fff;
}

/* Dropdown Menü Stilleri */
.dropdown-menu {
    border: none;
    border-radius: 0 0 4px 4px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.15);
    margin-top: 0;
    padding: 0;
    background-color: #fff;
}

.dropdown-item {
    padding: 12px 20px;
    border-bottom: 1px solid #f1f1f1;
    color: #444;
    font-weight: 500;
}

.dropdown-item:hover {
    background-color: var(--bg-light);
    color: var(--primary-color);
    padding-left: 25px;
    transition: all 0.2s ease;
}

/* =========================================
   4. ANA SLIDER (Home Slider)
   ========================================= */
.main-slider-outer {
    width: 100%;
    position: relative;
    overflow: hidden;
}

.main-slider-swiper {
    height: 600px;
    width: 100%;
}

.main-slider-swiper .swiper-slide {
    background-size: cover;
    background-position: center;
    display: flex;
    align-items: center;
    position: relative;
}

/* İçerik Kartı (Beyaz Kutu) */
.slider-content-card {
    background: rgba(255, 255, 255, 0.95);
    padding: 30px;
    max-width: 550px;
    border-top: 6px solid var(--primary-color);
    position: relative;
    z-index: 20;
    display: block !important;
    opacity: 1 !important;
    visibility: visible !important;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.slider-content-card .title {
    color: var(--secondary-color) !important;
    font-weight: 800;
    font-size: 0.8rem;
    margin-bottom: 15px;
    line-height: 1.2;
}

.slider-content-card .desc {
    color: #444 !important;
    font-size: 0.9rem;
    line-height: 1.6;
}

/* Slider Butonları */
.btn-slider {
    padding: 12px 28px;
    text-decoration: none;
    font-weight: bold;
    display: inline-block;
    border-radius: var(--btn-radius);
    margin: 5px 10px 5px 0;
    transition: 0.3s;
    font-size: 0.9rem; 
}

.btn-slider.btn-bordo {
    background-color: var(--primary-color);
    color: #fff !important;
}

.btn-slider.btn-bordo:hover {
    background-color: var(--primary-hover);
}

.btn-slider.btn-lacivert {
    background-color: var(--secondary-color);
    color: #fff !important;
}

.btn-slider.btn-lacivert:hover {
    background-color: var(--secondary-hover);
}

/* Navigasyon Okları (Bordo Daireler) */
.custom-slider-nav {
    background-color: var(--primary-color) !important;
    width: 50px !important;
    height: 50px !important;
    border-radius: 50% !important;
    color: #fff !important;
    z-index: 30 !important;
    transition: 0.3s ease;
}

.custom-slider-nav::after {
    font-size: 18px !important;
    font-weight: bold;
}

.custom-slider-nav:hover {
    background-color: var(--primary-hover) !important;
    transform: scale(1.1);
}

/* =========================================
   5. DİĞER BİLEŞENLER (Personel, Hizmet vb.)
   ========================================= */
.card-person {
    border: none;
    background: #fff;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s ease;
    border-radius: var(--border-radius);
}

.card-person:hover {
    transform: translateY(-5px);
}

.service-card {
    transition: transform 0.3s ease;
    border-radius: 8px;
    background: #fff;
    overflow: hidden;
}

.service-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1) !important;
}

/* =========================================
   6. FOOTER
   ========================================= */
.footer-top {
    background-color: var(--footer-bg-blue);
    color: #fff;
    padding: 50px 0;
}

.footer-bottom {
    background-color: var(--primary-color);
    color: #fff;
    padding: 15px 0;
}

/* =========================================
   7. RESPONSIVE AYARLAR
   ========================================= */
@media (max-width: 991px) {
    .main-navbar .navbar-nav .nav-link {
        padding: 10px 20px;
    }
}

@media (max-width: 768px) {
    .main-slider-swiper {
        height: 450px !important;
    }

    .slider-content-card {
        padding: 25px !important;
        margin: 0 15px;
        max-width: 100% !important;
    }

    .slider-content-card .title {
        font-size: 1.8rem !important;
    }

    .btn-slider {
        width: 100%;
        text-align: center;
        margin-right: 0;
    }
}


/* =========================================
   HAKKIMIZDA SAYFASI ÖZEL STİLLERİ
   ========================================= */

/* Kurumsal Renk Yardımcıları (Global kullanılabilir) */
.bg-kurumsal {
    background-color: var(--primary-color) !important;
    color: #fff;
}
.text-kurumsal {
    color: var(--primary-color) !important;
}
.border-kurumsal {
    border-color: var(--primary-color) !important;
}

/* Kart Efektleri */
.hover-top {
    transition: transform 0.3s ease;
}
.hover-top:hover {
    transform: translateY(-5px);
}

/* İkon Kutuları (Vizyon/Misyon) */
.icon-box {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0; /* Küçülmesini engelle */
}
.icon-box i {
    font-size: 1.5rem; /* fs-4 karşılığı */
}

/* İstatistik Kutusu */
.stat-box {
    text-align: center;
    padding: 1.5rem;
    border: 1px solid rgba(255, 255, 255, 0.25);
    border-radius: var(--border-radius);
    height: 100%;
    transition: background-color 0.3s;
}
.stat-box:hover {
    background-color: rgba(255, 255, 255, 0.1);
}
.stat-icon {
    font-size: 2.5rem; /* fs-1 karşılığı */
    margin-bottom: 0.5rem;
    opacity: 0.8;
}
.stat-value {
    font-size: 2.5rem; /* display-5 karşılığı */
    font-weight: 700;
    margin-bottom: 0.25rem;
}
.stat-title {
    font-size: 0.875em;
    text-transform: uppercase;
    letter-spacing: 1px; /* tracking-wide */
    opacity: 0.8;
}

/* Yetenek (Skill) Dairesi */
.skill-circle {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    border: 6px solid #f8f9fa; /* bg-light rengi */
    display: inline-flex;
    justify-content: center;
    align-items: center;
    margin-bottom: 1rem;
    background-color: #fff;
    box-shadow: 0 5px 15px rgba(0,0,0,0.05);
}

/* Zaman Çizelges (Timeline) */
.timeline-line {
    position: absolute;
    top: 0;
    bottom: 0;
    left: 0;
    margin-left: 1.5rem; /* ms-4'e denk gelir (yaklaşık) */
    border-left: 2px solid var(--primary-color);
    opacity: 0.25;
}
.timeline-badge {
    min-width: 80px;
    text-align: center;
    background-color: var(--primary-color);
    color: #fff;
    border-radius: 50rem; /* rounded-pill */
    padding: 0.5rem 1rem;
    font-size: 1rem;
    box-shadow: 0 .125rem .25rem rgba(0,0,0,.075); /* shadow-sm */
}


/* =========================================
   YENİ NESİL STICKY HEADER & MENU (Shrink)
   ========================================= */

/* Pürüzsüz Geçiş Efektleri */
.transition-all { transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1); }

@media (min-width: 992px) {
    .navbar-nav .dropdown:hover .dropdown-menu { 
        display: block; 
        margin-top: 0; 
        animation: fadeIn 0.3s ease; 
    }
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Header Asıl Kapsayıcı */
header.sticky-top { 
    transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1); 
    background-color: rgba(255, 255, 255, 1);
}

.main-navbar .nav-link { 
    padding-top: 15px; 
    padding-bottom: 15px; 
    font-weight: 600; 
    outline: none;
}

#brand-bar-inner { 
    padding-top: 18px; 
    padding-bottom: 18px; 
}

/* --- SCROLL EDİLDİĞİNDE DEVREYE GİREN 'scrolled' SINIFI --- */

/* Arka plan buzlu cam efekti */
header.sticky-top.scrolled {
    background-color: rgba(255, 255, 255, 0.96) !important;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    box-shadow: 0 4px 20px rgba(0,0,0,0.06) !important;
}

/* Scroll olunca top-bar GİZLENMEZ, sadece daha zarif durması için incelir */
header.sticky-top.scrolled .top-bar { 
    padding: 2px 0 !important; 
    font-size: 0.90rem;
}

/* Boşluklar Sıfırlanır */
header.sticky-top.scrolled #brand-bar-inner { 
    padding-top: 5px !important; 
    padding-bottom: 0px !important; 
}

/* Logo Küçülür */
header.sticky-top.scrolled #main-logo { 
    max-height: 40px !important; 
}

/* Butonlar Daralır */
header.sticky-top.scrolled .header-actions {
    transform: scale(0.85);
    transform-origin: right center;
    margin-bottom: -5px; 
}

/* Menü Yüksekliği Azalır */
header.sticky-top.scrolled .main-navbar .nav-link { 
    padding-top: 6px !important; 
    padding-bottom: 6px !important; 
    font-size: 0.90rem; 
}

header.sticky-top.scrolled .navbar-toggler i { 
    font-size: 1.2rem !important; 
}


/* =========================================
   MOBILE NAVBAR FIX
   ========================================= */

@media (max-width: 991.98px) {

    /* Menü kapalıyken navbar yüksekliği sıfırlanır */
    .main-navbar {
        min-height: 0;
        padding: 0;
    }

    /* collapse kapalıyken navbar görünmez */
    .main-navbar .navbar-collapse {
        display: none !important;
    }

    /* Menü açıldığında görünür */
    .main-navbar .navbar-collapse.show {
        display: block !important;
        background-color: var(--primary-color);
    }

    /* Menü itemleri mobilde blok */
    .main-navbar .navbar-nav {
        width: 100%;
    }

    .main-navbar .nav-link {
        width: 100%;
        padding: 14px 20px;
        font-size: 1rem;
    }

}