/* Base Styles */
:root {
    --primary-color: #05314d;
    --text-color: #ffffff;
    --hover-color: #1a5276;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Poppins', sans-serif;
}

body {
    background-color: #c4cbe0ff;
    color: #333;
    line-height: 1.6;
}

.main-header {
    background-color: var(--primary-color);
    color: var(--text-color);
    padding: 0.9rem 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* Logo Styles (Left) */
.logo {
    flex: 1;
}

.logo a {
    display: inline-block;
}

.logo-img {
    height: 45px;
    width: auto;
    transition: opacity 0.3s ease;
}

.logo-img:hover {
    opacity: 0.9;
}

/* Navigation Styles (Center) */
.main-nav {
    flex: 2;
    display: flex;
    justify-content: center;
}

.main-nav ul {
    display: flex;
    list-style: none;
    gap: 2.5rem;
    margin: 0;
    padding: 0;
}

.main-nav a {
    color: var(--text-color);
    text-decoration: none;
    font-weight: 600;
    font-size: 1rem;
    letter-spacing: 0.6px;
    text-transform: uppercase;
    transition: all 0.3s ease;
    padding: 0.5rem 0;
    position: relative;
   
}

.main-nav a:hover {
    color: rgba(255, 255, 255, 0.9);
   
}

.main-nav a::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: 0;
    left: 0;
    background-color: var(--text-color);
    transition: width 0.3s ease;
}

.main-nav a:hover::after {
    width: 100%;
}

/* Auth Buttons Styles (Right) */
.auth-buttons {
    flex: 1;
    display: flex;
    justify-content: flex-end;
    gap: 1.2rem;
}

.btn-login,
.btn-register {
    padding: 0.6rem 1.2rem;
    border-radius: 4px;
    font-weight: 500;
    text-decoration: none;
    transition: all 0.3s ease;
    font-size: 0.8rem;
    letter-spacing: 0.5px;
    text-transform: uppercase;
    cursor: pointer;
}

.btn-login {
    background-color: transparent;
    color: var(--text-color);
    border: 2px solid var(--text-color);
}

.btn-login:hover {
    background-color: var(--text-color);
    color: var(--primary-color);
    transform: translateY(-2px);
}

.btn-register {
    background-color: var(--text-color);
    color: var(--primary-color);
    border: 2px solid var(--text-color);
}

.btn-register:hover {
    background-color: transparent;
    color: var(--text-color);
    transform: translateY(-2px);
}

/* Responsive Design */
@media (max-width: 992px) {
    .header-container {
        padding: 0 1.5rem;
    }
    
    .main-nav ul {
        gap: 1.8rem;
    }
}

@media (max-width: 768px) {
    .header-container {
        flex-direction: column;
        padding: 1rem;
        gap: 1.5rem;
    }

    .logo {
        margin-bottom: 0;
        flex: none;
        width: 100%;
        text-align: center;
    }

    .main-nav {
        flex: none;
        width: 100%;
    }

    .main-nav ul {
        gap: 1rem;
        flex-wrap: wrap;
        justify-content: center;
    }

    .auth-buttons {
        flex: none;
        width: 100%;
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .main-nav ul {
        gap: 0.8rem;
    }
    
    .btn-login,
    .btn-register {
        padding: 0.5rem 1rem;
        font-size: 0.9rem;
    }
}