:root {
    --primary-color: #007bff;
    --secondary-color: #ffc107;
    --text-color: #333;
    --light-text-color: #f8f9fa;
    --dark-bg-color: #212529;
    --light-bg-color: #ffffff;
    --border-color: #dee2e6;
}

body {
    font-family: 'Segoe UI', 'Helvetica Neue', Helvetica, Arial, sans-serif;
    line-height: 1.6;
    margin: 0;
    padding: 0;
    color: var(--text-color);
    background-color: #f4f7f6;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
}

/* Header Styles */
.site-header {
    background-color: var(--dark-bg-color);
    padding: 15px 0;
    color: var(--light-text-color);
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}

.site-header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.site-header .logo {
    color: var(--secondary-color);
    font-size: 28px;
    font-weight: bold;
    text-decoration: none;
    letter-spacing: 1px;
    transition: color 0.3s ease;
}

.site-header .logo:hover {
    color: var(--primary-color);
}

.main-nav .nav-list {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    gap: 25px;
}

.main-nav .nav-list li a {
    color: var(--light-text-color);
    text-decoration: none;
    font-size: 16px;
    font-weight: 500;
    padding: 8px 0;
    position: relative;
    transition: color 0.3s ease;
}

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

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

/* Hamburger Menu */
.hamburger-menu {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0;
    width: 30px;
    height: 24px;
    position: relative;
    z-index: 100;
}

.hamburger-menu .bar {
    display: block;
    width: 100%;
    height: 3px;
    background-color: var(--light-text-color);
    border-radius: 2px;
    position: absolute;
    left: 0;
    transition: all 0.3s ease;
}

.hamburger-menu .bar:nth-child(1) { top: 0; }
.hamburger-menu .bar:nth-child(2) { top: 50%; transform: translateY(-50%); }
.hamburger-menu .bar:nth-child(3) { bottom: 0; }

.hamburger-menu.open .bar:nth-child(1) {
    top: 50%;
    transform: translateY(-50%) rotate(45deg);
}
.hamburger-menu.open .bar:nth-child(2) {
    opacity: 0;
}
.hamburger-menu.open .bar:nth-child(3) {
    bottom: 50%;
    transform: translateY(50%) rotate(-45deg);
}

/* Footer Styles */
.site-footer {
    background-color: var(--dark-bg-color);
    color: var(--light-text-color);
    padding: 40px 0;
    font-size: 15px;
    line-height: 1.8;
}

.site-footer a {
    color: var(--primary-color);
    text-decoration: none;
    transition: color 0.3s ease;
}

.site-footer a:hover {
    color: var(--secondary-color);
}

.site-footer .footer-columns {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    gap: 30px;
}

.site-footer .footer-col {
    flex: 1;
    min-width: 250px;
}

.site-footer .footer-col.brand-info {
    flex: 1.5;
}

.site-footer .footer-logo {
    font-size: 24px;
    margin-bottom: 15px;
    display: inline-block;
}

.site-footer h3 {
    color: var(--secondary-color);
    font-size: 18px;
    margin-bottom: 20px;
    position: relative;
}

.site-footer h3::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: -5px;
    width: 50px;
    height: 2px;
    background-color: var(--primary-color);
}

.site-footer .footer-nav ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.site-footer .footer-nav li {
    margin-bottom: 10px;
}

.site-footer .footer-nav li a {
    color: var(--light-text-color);
    display: block;
}

.site-footer .copyright {
    margin-top: 30px;
    text-align: left;
    color: rgba(255, 255, 255, 0.7);
    font-size: 14px;
}

/* Responsive Styles */
@media (max-width: 992px) {
    .main-nav .nav-list {
        gap: 15px;
    }
}

@media (max-width: 768px) {
    .site-header .container {
        flex-wrap: wrap;
        justify-content: space-between;
    }

    .site-header .logo {
        flex-grow: 1;
    }

    .main-nav {
        order: 3;
        flex-basis: 100%;
        display: none;
        margin-top: 15px;
        background-color: var(--dark-bg-color);
        box-shadow: 0 5px 10px rgba(0, 0, 0, 0.2);
        border-radius: 5px;
        overflow: hidden;
    }

    .main-nav.active {
        display: block;
    }

    .main-nav .nav-list {
        flex-direction: column;
        text-align: center;
        padding: 10px 0;
    }

    .main-nav .nav-list li {
        margin: 0;
    }

    .main-nav .nav-list li a {
        padding: 12px 20px;
        display: block;
        border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    }

    .main-nav .nav-list li:last-child a {
        border-bottom: none;
    }

    .hamburger-menu {
        display: block;
    }

    .site-footer .footer-columns {
        flex-direction: column;
        gap: 40px;
    }

    .site-footer .footer-col {
        min-width: unset;
        width: 100%;
    }

    .site-footer .copyright {
        text-align: center;
        margin-top: 40px;
    }
}

@media (max-width: 480px) {
    .site-header .logo {
        font-size: 24px;
    }
}