/**
 * NAVBAR STİLLERİ
 * Üst navigasyon menüsü
 */

/* ==================== NAVBAR KONTEYNER ==================== */
nav {
    background-color: var(--card-bg);
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 1000;
    transition: var(--transition);
    width: 100%;
}

nav.scrolled {
    box-shadow: var(--shadow-lg);
}

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--space-md);
    position: relative;
    width: 100%;
    height: auto;
}

/* ==================== LOGO ==================== */
.navbar-logo {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-weight: 700;
    font-size: var(--font-size-xl);
    color: var(--primary-color);
    text-decoration: none;
    transition: var(--transition-fast);
}

.navbar-logo:hover {
    color: var(--secondary-color);
    text-decoration: none;
}

.logo-icon {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    object-fit: cover;
}

/* ==================== NAVİGASYON MENU ==================== */
.nav-menu {
    display: flex;
    list-style: none;
    gap: var(--space-lg);
    align-items: center;
    margin: 0;
    padding: 0;
}

.nav-menu a {
    font-weight: 600;
    color: var(--text-color);
    transition: var(--transition-fast);
    padding: var(--space-sm) var(--space-md);
    border-bottom: 3px solid transparent;
    text-decoration: none !important;
}

.nav-menu a:hover,
.nav-menu a.active {
    color: var(--primary-color);
    border-bottom-color: var(--primary-color);
    text-decoration: none !important;
}

/* ==================== THEME TOGGLE ==================== */
.theme-toggle {
    background: none;
    border: 2px solid var(--primary-color);
    color: var(--primary-color);
    font-size: 18px;
    padding: 8px 12px;
    border-radius: var(--radius);
    cursor: pointer;
    transition: var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    font-weight: bold;
    flex-shrink: 0;
    margin-left: auto;
}

.theme-toggle:hover {
    background-color: var(--primary-color);
    color: var(--white);
    transform: scale(1.1);
}

.theme-toggle:active {
    transform: scale(0.95);
}

@media (max-width: 768px) {
    .theme-toggle {
        order: 2;
        margin-left: auto;
        width: 36px;
        height: 36px;
        padding: 6px 10px;
        font-size: 16px;
    }
}

/* ==================== HAMBURGER MENU ==================== */
.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    background: none;
    border: none;
    padding: 0;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background-color: var(--primary-color);
    margin: 5px 0;
    transition: var(--transition-fast);
    border-radius: 2px;
}

.hamburger.active span:nth-child(1) {
    transform: rotate(-45deg) translate(-8px, 8px);
}

.hamburger.active span:nth-child(2) {
    opacity: 0;
}

.hamburger.active span:nth-child(3) {
    transform: rotate(45deg) translate(-7px, -7px);
}

/* ==================== MOBILE BACKDROP ==================== */
.nav-backdrop {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 999;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
    -webkit-tap-highlight-color: transparent;
}

.nav-backdrop.active {
    opacity: 1;
    visibility: visible;
}

/* ==================== MOBİL RESPONSIVE ==================== */
@media (max-width: 768px) {
    .navbar {
        padding: var(--space-sm) var(--space-md);
        height: auto;
        min-height: 60px;
    }

    .hamburger {
        display: flex;
        order: 1;
        margin-right: var(--space-md);
        -webkit-tap-highlight-color: transparent;
        touch-action: manipulation;
        user-select: none;
        z-index: 1001;
    }
    
    .nav-menu {
        position: fixed;
        top: 60px;
        left: 0;
        right: 0;
        width: 100%;
        max-height: calc(100vh - 60px);
        background-color: var(--card-bg);
        flex-direction: column;
        align-items: stretch;
        gap: 0;
        margin: 0;
        padding: 0;
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1), 
                    opacity 0.3s ease, 
                    visibility 0.3s ease;
        box-shadow: 0 8px 16px rgba(0, 0, 0, 0.15);
        z-index: 1000;
        overflow-y: auto;
        -webkit-overflow-scrolling: touch;
        border-top: 1px solid var(--border-color);
    }
    
    .nav-menu.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }

    .nav-menu li {
        width: 100%;
        margin: 0;
        padding: 0;
        border-bottom: 1px solid var(--border-color);
    }

    .nav-menu li:last-child {
        border-bottom: none;
    }
    
    .nav-menu a {
        display: block;
        width: 100%;
        padding: 16px var(--space-lg);
        text-align: left;
        border: none;
        text-decoration: none !important;
        color: var(--text-color);
        font-weight: 500;
        -webkit-tap-highlight-color: transparent;
        touch-action: manipulation;
        user-select: none;
        transition: background-color 0.15s ease;
        min-height: 48px;
        display: flex;
        align-items: center;
    }
    
    .nav-menu a:hover {
        background-color: var(--light-color);
        color: var(--primary-color);
    }

    .nav-menu a.active {
        background-color: var(--light-color);
        color: var(--primary-color);
        border-left: 4px solid var(--primary-color);
        padding-left: calc(var(--space-lg) - 4px);
    }
    
    .nav-menu a:active {
        background-color: var(--primary-color);
        color: var(--white);
    }

    .navbar-logo {
        order: 0;
        flex-shrink: 0;
    }
}