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

body {
    background-color: var(--bg-color);
    color: var(--text-color);
    font-family: var(--font-body);
    line-height: 1.6;
    font-size: 16px;
}

h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: var(--font-heading);
    color: var(--primary-color);
    margin-bottom: var(--spacing-sm);
    font-weight: 700;
}

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

a:hover {
    color: var(--accent-color);
}

ul {
    list-style: none;
}

/* Utilities */
.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 var(--spacing-sm);
}

.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border-radius: 4px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

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

.btn-primary:hover {
    background-color: transparent;
    color: var(--primary-color);
}

.btn-outline {
    background-color: transparent;
    color: var(--primary-color);
    border: 1px solid var(--primary-color);
}

.btn-outline:hover {
    background-color: var(--primary-color);
    color: var(--white);
}

/* Header & Nav */
header {
    background-color: var(--white);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
    position: sticky;
    top: 0;
    z-index: 1000;
    padding: var(--spacing-sm) 0;
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-brand {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    color: var(--primary-color);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.nav-links {
    display: flex;
    gap: var(--spacing-md);
    margin-left: auto;
    /* Push to right */
    align-items: center;
}

.nav-links a {
    color: var(--text-color);
    font-weight: 500;
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--accent-color);
}

/* Section Common */
section {
    padding: var(--spacing-lg) 0;
}

section h2 {
    font-size: 2rem;
    margin-bottom: var(--spacing-md);
    position: relative;
    padding-bottom: var(--spacing-xs);
}

section h2::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 60px;
    height: 3px;
    background-color: var(--accent-color);
}

/* Footer */
footer {
    background-color: var(--white);
    padding: var(--spacing-md) 0;
    margin-top: var(--spacing-xl);
    border-top: 1px solid var(--border-color);
    text-align: center;
    color: var(--muted-color);
    font-size: 0.9rem;
}

.social-icons {
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-sm);
}

.social-icons a {
    color: var(--muted-color);
    font-size: 1.2rem;
}

.social-icons a:hover {
    color: var(--primary-color);
}

/* Mobile Menu Button Base Styles */
#menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--primary-color);
    cursor: pointer;
}

/* Mobile Responsive */
@media (max-width: 768px) {
    #menu-toggle {
        display: block;
    }

    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        flex-direction: column;
        background-color: var(--bg-color);
        box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
        padding: 1rem 0;
        border-top: 1px solid var(--border-color);
    }

    .nav-links.active {
        display: flex;
    }

    .nav-links li {
        margin: 0.5rem 0;
        text-align: center;
    }

    .nav-links a {
        display: block;
        padding: 0.5rem;
    }

    :root {
        --spacing-lg: 2rem;
        --spacing-xl: 4rem;
    }

    /* Layout Adjustments */
    .about-section {
        grid-template-columns: 1fr !important;
    }

    /* Ensure containers have padding */
    .container {
        padding: 0 1rem;
    }
}



/* Improved Theme Toggle */
#theme-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    cursor: pointer;
    transition: background-color 0.3s ease, color 0.3s ease;
    color: var(--primary-color);
}

#theme-toggle:hover {
    background-color: var(--border-color);
    color: var(--accent-color);
}

#theme-toggle svg {
    width: 22px;
    height: 22px;
}