/* --- Core CSS for Gargee Bhattacharjee Website --- */

/* Google Fonts (adjust as needed for specific fonts if identified) */
/* Using a general sans-serif as Segoe UI is a system font */
@import url('https://fonts.googleapis.com/css2?family=Roboto:wght@300;400;500;700&family=Oswald:wght@400;700&display=swap');

:root {
    --primary-bg: #f8f8f8; /* Light gray background for overall site */
    --secondary-bg: #ffffff; /* White background for main content areas */
    --dark-bg: #000000; /* Black for headers, footers, some sections */
    --accent-red: #880000; /* Deep red for highlights/buttons */
    --text-dark: #333333;
    --text-light: #ffffff;
    --text-gray: #666666;
    --border-color: #eee;
    --card-shadow: 0 2px 5px rgba(0,0,0,0.1);
    --button-bg: #880000; /* Consistent button color */
    --button-text: #ffffff;
}

body {
    font-family: 'Roboto', sans-serif;
    margin: 0;
    padding: 0;
    background-color: var(--primary-bg);
    color: var(--text-dark);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Base Layout for all pages */
.container {
    max-width: 960px; /* Max width for content on larger screens */
    margin: 0 auto;
    padding: 0 15px; /* Horizontal padding for content */
}

/* Header */
.header-top {
    background-color: var(--dark-bg);
    color: var(--text-light);
    padding: 15px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.header-top .menu-icon {
    font-size: 24px; /* Adjust if using an actual icon font or SVG */
    cursor: pointer;
    padding: 5px;
    margin-right: 15px;
}

.header-top .site-title {
    font-family: 'Oswald', sans-serif;
    font-weight: 400;
    font-size: 1.2em;
    text-transform: uppercase;
    letter-spacing: 1px;
    flex-grow: 1; /* Allow title to take up space */
    text-align: center;
}

/* Section Headings */
h1.page-heading, h2.section-heading {
    font-family: 'Oswald', sans-serif;
    font-weight: 700;
    font-size: 1.8em;
    color: var(--text-dark);
    text-transform: uppercase;
    text-align: center;
    padding: 20px 0;
    margin: 0; /* Remove default margin */
    background-color: var(--secondary-bg); /* Match section background */
    border-bottom: 1px solid var(--border-color); /* Subtle separator */
}

/* Card Styling (for various content blocks) */
.card {
    background-color: var(--secondary-bg);
    border-radius: 8px;
    box-shadow: var(--card-shadow);
    margin-bottom: 20px;
    overflow: hidden; /* Clears floats if images are floated */
}

.card-content {
    padding: 20px;
}

.card img {
    max-width: 100%;
    height: auto;
    display: block; /* Remove extra space below image */
    border-radius: 8px 8px 0 0; /* Rounded top corners if image is full width top */
}

.card .button {
    display: block;
    width: fit-content;
    margin: 20px auto 0; /* Center button */
    padding: 10px 20px;
    background-color: var(--button-bg);
    color: var(--button-text);
    text-align: center;
    text-decoration: none;
    border-radius: 5px;
    font-weight: 500;
    transition: background-color 0.3s ease;
}

.card .button:hover {
    background-color: darken(var(--button-bg), 10%); /* Darken on hover */
}

/* Footer */
footer {
    background-color: var(--dark-bg);
    color: var(--text-gray);
    text-align: center;
    padding: 20px;
    font-size: 0.9em;
    margin-top: 30px;
}

/* Navigation Menu (Hidden by default, shown with JavaScript) */
.nav-menu {
    position: fixed;
    top: 0;
    left: -250px; /* Off-screen by default */
    width: 250px;
    height: 100%;
    background-color: var(--dark-bg);
    padding-top: 60px; /* Space for fixed header */
    box-shadow: 2px 0 5px rgba(0,0,0,0.5);
    transition: left 0.3s ease;
    z-index: 1000;
}

.nav-menu.active {
    left: 0; /* Slide in */
}

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

.nav-menu li a {
    display: block;
    padding: 15px 20px;
    color: var(--text-light);
    text-decoration: none;
    font-family: 'Oswald', sans-serif;
    font-size: 1.1em;
    text-transform: uppercase;
    border-bottom: 1px solid rgba(255,255,255,0.1);
    transition: background-color 0.2s ease;
}

.nav-menu li a:hover {
    background-color: rgba(255,255,255,0.1);
}

/* Responsive adjustments */
@media (min-width: 768px) {
    /* Adjustments for larger screens if needed, though mobile-first */
    .header-top .site-title {
        font-size: 1.5em;
    }
    h1.page-heading, h2.section-heading {
        font-size: 2.2em;
    }
}