:root {
    --primary-color: #FFD700; /* Gold */
    --secondary-color: #00BFFF; /* Deep Sky Blue */
    --text-color: #E0E0E0;
    --bg-color-dark: #1a1a1a;
    --bg-color-light: #2a2a2a;
    --border-color: #444;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--bg-color-dark);
}

a {
    color: var(--secondary-color);
    text-decoration: none;
}

a:hover {
    color: var(--primary-color);
    text-decoration: underline;
}

/* Header Styles */
.site-header {
    background-color: var(--bg-color-dark);
    padding: 1rem 0;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.5);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.header-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 1.5rem;
}

.logo {
    font-family: 'Arial Black', sans-serif;
    font-size: 2.2rem;
    font-weight: 900;
    color: var(--primary-color);
    text-decoration: none;
    letter-spacing: 1px;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.7);
    transition: color 0.3s ease;
}

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

.main-nav ul {
    list-style: none;
    display: flex;
    gap: 1.5rem;
}

.main-nav a {
    color: var(--text-color);
    font-weight: 600;
    padding: 0.5rem 0;
    position: relative;
    transition: color 0.3s ease;
}

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

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

.main-nav a:hover,
.main-nav a.active {
    color: var(--primary-color);
}

.header-actions {
    display: flex;
    gap: 1rem;
}

.btn {
    padding: 0.7rem 1.2rem;
    border-radius: 5px;
    font-weight: 700;
    text-transform: uppercase;
    transition: background-color 0.3s ease, color 0.3s ease;
    border: none;
    cursor: pointer;
    text-align: center;
}

.btn-register {
    background-color: var(--primary-color);
    color: var(--bg-color-dark);
}

.btn-register:hover {
    background-color: var(--secondary-color);
    color: white;
}

.btn-login {
    background-color: var(--bg-color-light);
    color: var(--primary-color);
    border: 1px solid var(--primary-color);
}

.btn-login:hover {
    background-color: var(--primary-color);
    color: var(--bg-color-dark);
}

.hamburger-menu {
    display: none; /* Hidden on desktop */
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
    position: relative;
    z-index: 1001;
}

.hamburger-menu .bar {
    display: block;
    width: 25px;
    height: 3px;
    background-color: var(--primary-color);
    margin: 5px auto;
    transition: all 0.3s ease;
}

/* Footer Styles */
.site-footer {
    background-color: var(--bg-color-light);
    color: var(--text-color);
    padding: 3rem 1.5rem;
    border-top: 1px solid var(--border-color);
    margin-top: 2rem;
}

.footer-container {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.footer-column h3 {
    color: var(--primary-color);
    margin-bottom: 1rem;
    font-size: 1.2rem;
    border-bottom: 2px solid var(--secondary-color);
    padding-bottom: 0.5rem;
    display: inline-block;
}

.footer-column p {
    font-size: 0.9rem;
    margin-bottom: 0.5rem;
}

.footer-column a {
    color: var(--text-color);
    transition: color 0.3s ease;
}

.footer-column a:hover {
    color: var(--primary-color);
    text-decoration: underline;
}

.footer-nav-links ul {
    list-style: none;
}

.footer-nav-links li {
    margin-bottom: 0.5rem;
}

.footer-bottom {
    border-top: 1px solid var(--border-color);
    padding-top: 1.5rem;
    margin-top: 2rem;
    text-align: center;
    font-size: 0.85rem;
    color: #999;
}

/* Responsive Styles */
@media (max-width: 1024px) {
    .main-nav ul {
        gap: 1rem;
    }
}

@media (max-width: 768px) {
    .header-container {
        padding: 0 1rem;
    }

    .main-nav {
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background-color: var(--bg-color-dark);
        box-shadow: 0 5px 10px rgba(0, 0, 0, 0.5);
        display: none; /* Hidden by default */
        flex-direction: column;
        align-items: center;
        padding: 1rem 0;
        animation: slideDown 0.3s ease-out forwards;
    }

    .site-header.open .main-nav {
        display: flex; /* Show when open */
    }

    .main-nav ul {
        flex-direction: column;
        width: 100%;
        text-align: center;
    }

    .main-nav li {
        margin: 0.5rem 0;
        width: 100%;
    }

    .main-nav a {
        display: block;
        padding: 0.8rem 1rem;
        border-bottom: 1px solid var(--border-color);
        width: 100%;
    }
    .main-nav li:last-child a {
        border-bottom: none;
    }

    .header-actions {
        display: none; /* Hide buttons on mobile when menu is closed */
    }
    
    .site-header.open .header-actions {
        display: flex;
        flex-direction: column;
        width: 100%;
        padding: 1rem;
        gap: 0.8rem;
    }

    .btn {
        width: 100%;
    }

    .hamburger-menu {
        display: block; /* Show on mobile */
    }

    .site-header.open .hamburger-menu .bar:nth-child(1) {
        transform: translateY(8px) rotate(45deg);
    }
    .site-header.open .hamburger-menu .bar:nth-child(2) {
        opacity: 0;
    }
    .site-header.open .hamburger-menu .bar:nth-child(3) {
        transform: translateY(-8px) rotate(-45deg);
    }

    .footer-container {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .footer-column h3 {
        margin: 1.5rem 0 1rem;
        border-bottom: none;
        padding-bottom: 0;
    }
}

@keyframes slideDown {
    from {
        transform: translateY(-100%);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}