/* Global Reset & Base Styles */
:root {
    --primary-color: #2563eb;
    --primary-dark: #1e40af;
    --secondary-color: #64748b;
    --text-color: #1e293b;
    --bg-color: #f8fafc;
    --card-bg: #ffffff;
    --accent-color: #f59e0b; /* Amber for highlights */
    --border-radius: 12px;
    --shadow: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --font-main: 'Inter', sans-serif;
    --transition: all 0.3s ease;
}

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

body {
    font-family: var(--font-main);
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

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

a:hover {
    color: var(--primary-dark);
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

ul {
    list-style: none;
}

/* Layout Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
    width: 100%;
}

/* Header & Navigation */
header {
    background-color: var(--card-bg);
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.logo img {
    height: 50px; /* Adjusted size */
    width: auto;
}

.logo-text {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-dark);
}

/* Desktop Navigation */
.desktop-nav {
    display: none;
}

@media (min-width: 768px) {
    .desktop-nav {
        display: flex;
        gap: 1.5rem;
    }

    .desktop-nav a {
        font-weight: 600;
        color: var(--secondary-color);
    }

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

/* Hamburger Menu */
.hamburger {
    display: block;
    cursor: pointer;
    background: none;
    border: none;
    padding: 0.5rem;
}

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

@media (min-width: 768px) {
    .hamburger {
        display: none;
    }
}

/* Mobile Menu */
.mobile-menu {
    position: fixed;
    top: 70px; /* Adjust based on header height */
    left: -100%;
    width: 100%;
    height: calc(100vh - 70px);
    background-color: var(--card-bg);
    padding: 2rem;
    transition: var(--transition);
    border-top: 1px solid #e2e8f0;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    z-index: 999;
    box-shadow: var(--shadow); /* Added shadow */
}

.mobile-menu.active {
    left: 0;
}

.mobile-menu a {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--secondary-color);
    border-bottom: 1px solid #f1f5f9;
    padding-bottom: 0.5rem;
}

.mobile-menu a:hover {
    color: var(--primary-color);
    padding-left: 10px;
}


/* Main Grid Layout */
.main-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
    margin-top: 2rem;
    margin-bottom: 2rem;
}

@media (min-width: 900px) {
    .main-grid {
        grid-template-columns: 250px 1fr 250px;
    }
}

/* Sidebars */
.sidebar {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.sidebar h3 {
    font-size: 1.1rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--secondary-color);
    border-bottom: 2px solid var(--primary-color);
    padding-bottom: 0.5rem;
    margin-bottom: 1rem;
}

.card {
    background-color: var(--card-bg);
    border-radius: var(--border-radius);
    padding: 1.5rem;
    box-shadow: var(--shadow);
    transition: var(--transition);
    border: 1px solid transparent;
}

.card:hover {
    transform: translateY(-5px);
    border-color: var(--primary-color);
}

.card strong {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--primary-dark);
    font-size: 1.1rem;
}

.card a {
    display: inline-block;
    color: var(--secondary-color);
    font-weight: 500;
}

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

/* Main Content */
.content h1, .content h2 {
    margin-bottom: 1rem;
    color: var(--primary-dark);
}

.content p {
    margin-bottom: 1.5rem;
    font-size: 1.1rem;
    color: #475569;
}

/* Footer */
footer {
    background-color: #1e293b;
    color: #e2e8f0;
    padding: 2rem 0;
    margin-top: auto;
    text-align: center;
}

footer p {
    opacity: 0.8;
}

/* Utilities */
.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    background-color: var(--primary-color);
    color: white;
    border-radius: 50px;
    font-weight: 600;
    transition: var(--transition);
}

.btn:hover {
    background-color: var(--primary-dark);
    color: white;
    transform: scale(1.05);
}