:root {
    --usca-navy: #002147;
    --usca-gold: #C5A059;
    --usca-light-gold: #e2c99a;
    --usca-dark: #0a0a0a;
    --usca-gray: #f8f9fa;
    --transition: all 0.4s cubic-bezier(0.165, 0.84, 0.44, 1);
}

body {
    font-family: 'Poppins', sans-serif;
    color: var(--usca-dark);
    background: #fff;
    overflow-x: hidden;
    
}

html {
    overflow-x: hidden;
}

/* --- navbar settings --- */
:root {
    --nav-padding-top: 24px;
    --nav-padding-scrolled: 16px;
    --nav-transition: all 0.3s ease-in-out;
}

.navbar {
    transition: var(--nav-transition);
    padding: var(--nav-padding-top) 0;
    z-index: 9999;
    width: 100%;
}

/* Fixed Navbar (Ana Sayfa İçin) */
.navbar-fixed {
    position: fixed;
    top: 0;
    left: 0;
}

/* Static Navbar (İç Sayfalar İçin) */
.navbar-static {
    position: relative;
    background: #ffffff !important;
    box-shadow: 0 4px 20px rgba(0,0,0,0.05);
}

/* --- Nav Links --- */
.navbar .nav-link {
    color: rgba(255,255,255,0.95) !important;
    transition: var(--nav-transition);
    position: relative;
    display: inline-block;
    padding: 8px 0;
    font-weight: 500;
}

    /* Animated Underline */
    .navbar .nav-link::after {
        content: '';
        position: absolute;
        left: 0;
        bottom: 0;
        height: 3px;
        width: 100%;
        background: var(--usca-gold);
        transform: scaleX(0);
        transform-origin: left;
        transition: transform 0.32s ease;
        border-radius: 2px;
    }

    .navbar .nav-link:hover::after,
    .navbar .nav-link:focus::after {
        transform: scaleX(1);
    }

/* Logo */
.navbar-brand img {
    width: 200px;
    transition: var(--nav-transition);
    filter: brightness(0) invert(1);
    padding: 5px;
}

/* --- State: Scrolled, Mobile Open, or Static --- 
   Bu üç durumda da navbar aynı görünür (Beyaz zemin, lacivert yazı)
*/
.navbar.scrolled,
.navbar.mobile-menu-open,
.navbar-static {
    padding: var(--nav-padding-scrolled) 0;
    background: rgba(255,255,255,0.98) !important;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    box-shadow: 0 6px 30px rgba(0,0,0,0.08);
}

    .navbar.scrolled .nav-link,
    .navbar.mobile-menu-open .nav-link,
    .navbar-static .nav-link {
        color: var(--usca-navy) !important;
    }

    .navbar.scrolled .navbar-brand img,
    .navbar.mobile-menu-open .navbar-brand img,
    .navbar-static .navbar-brand img {
        filter: none; /* Logoyu orijinal rengine döndür */
    }

/* Toggler Color */
.navbar-toggler {
    border: none;
    color: white;
    font-size: 1.8rem;
}

.navbar.scrolled .navbar-toggler,
.navbar.mobile-menu-open .navbar-toggler,
.navbar-static .navbar-toggler {
    color: var(--usca-navy);
}

/* --- Mobile Responsive --- */
@media (max-width: 991px) {
    .navbar {
        padding: 15px 0; /* Mobilde her zaman biraz daha dar */
    }

    .navbar-collapse {
        background: white;
        margin-top: 15px;
        padding: 20px;
        border-radius: 12px;
        box-shadow: 0 10px 35px rgba(0,0,0,0.12);
    }

    .navbar .nav-link {
        color: var(--usca-navy) !important;
        padding: 12px 0;
        border-bottom: 1px solid #f2f2f2;
        width: 100%;
    }

        .navbar .nav-link::after {
            display: none; /* Mobilde alt çizgiyi kaldır (opsiyonel) */
        }

    .navbar-brand img {
        width: 160px; /* Mobilde logo biraz küçülebilir */
    }
}
/* --- end navbar --- */

/* --- Global --- */
.section-padding {
    padding: 60px 20px;
}

.section-title {
    font-weight: 700;
    font-size: clamp(1.8rem, 4vw, 2.8rem);
    color: var(--usca-navy);
    margin-bottom: 25px;
    line-height: 1.2;
}

.gold-text {
    color: var(--usca-gold);
    text-transform: uppercase;
    letter-spacing: 2px;
    font-weight: 600;
    font-size: 0.8rem;
    display: block;
    margin-bottom: 12px;
}

.btn-usca {
    background: var(--usca-navy);
    color: white;
    border: 1px solid var(--usca-navy);
    border-radius: 0;
    padding: 14px 35px;
    transition: var(--transition);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 1px;
    font-size: 0.9rem;
}

    .btn-usca:hover {
        background: var(--usca-gold);
        border-color: var(--usca-gold);
        color: var(--usca-navy);
        transform: translateY(-3px);
        box-shadow: 0 8px 25px rgba(197,160,89,0.3);
    }





footer a:hover {
    color: var(--usca-gold) !important;
    opacity: 1 !important;
}