:root {
    --primary-color: #0f172a;        /* Deep slate navy */
    --accent-color: #2563eb;         /* Vibrant modern blue */
    --accent-hover: #1d4ed8;
    --heading-color: #1e293b;        /* High-contrast dark slate */
    --text-color: #334155;           /* Soft dark grey for readability */
    --text-muted: #64748b;          /* Muted grey */
    --bg-light: #f8fafc;
    --card-bg: #ffffff;
    --border-color: #e2e8f0;
    --font-sans: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    --font-serif: 'Source Serif Pro', Georgia, serif;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.08), 0 8px 10px -6px rgba(0, 0, 0, 0.04);
}

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

body {
    font-family: var(--font-sans);
    color: var(--text-color);
    background-color: var(--bg-light);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
}

/* Header Section */
.header {
    background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
    color: #ffffff;
    text-align: center;
    padding: 3.5rem 1.5rem 2.5rem;
    box-shadow: var(--shadow-md);
}

.header h1 {
    font-size: 2.25rem;
    font-weight: 800;
    letter-spacing: -0.025em;
    margin-bottom: 0.5rem;
}

.header p {
    font-size: 1.05rem;
    font-weight: 400;
    color: #94a3b8;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

/* Navbar Section */
.navbar {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 1.5rem;
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(8px);
    border-bottom: 1px solid var(--border-color);
    padding: 0.85rem 1rem;
    position: sticky;
    top: 0;
    z-index: 100;
}

.navbar a {
    text-decoration: none;
    color: var(--text-color);
    font-weight: 500;
    font-size: 0.95rem;
    padding: 0.4rem 0.8rem;
    border-radius: 6px;
    transition: all 0.2s ease;
}

.navbar a:hover {
    color: var(--accent-color);
    background-color: #f1f5f9;
}

/* Main Container */
.container {
    max-width: 960px;
    margin: 2.5rem auto;
    padding: 0 1.5rem;
}

.content {
    background-color: var(--card-bg);
    border-radius: 12px;
    padding: 2.5rem;
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border-color);
}

/* Headings & Typography */
h2 {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--heading-color);
    margin-bottom: 1.25rem;
    border-bottom: 2px solid #f1f5f9;
    padding-bottom: 0.5rem;
}

p {
    margin-bottom: 1.25rem;
    color: var(--text-color);
}

/* Interactive Buttons */
.btn-primary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.5rem;
    background-color: var(--accent-color);
    color: #ffffff;
    text-decoration: none;
    font-weight: 600;
    font-size: 0.95rem;
    border-radius: 8px;
    box-shadow: var(--shadow-sm);
    transition: all 0.2s ease;
    margin-right: 0.75rem;
    margin-top: 1rem;
}

.btn-primary:hover {
    background-color: var(--accent-hover);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.btn-secondary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.5rem;
    background-color: #f1f5f9;
    color: var(--heading-color);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.95rem;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    transition: all 0.2s ease;
    margin-top: 1rem;
}

.btn-secondary:hover {
    background-color: #e2e8f0;
    transform: translateY(-1px);
}

/* Footer */
.footer {
    text-align: center;
    padding: 3rem 1.5rem;
    color: var(--text-muted);
    font-size: 0.875rem;
}

/* Responsive Design */
@media (max-width: 640px) {
    .header h1 {
        font-size: 1.75rem;
    }
    .navbar {
        flex-wrap: wrap;
        gap: 0.5rem;
    }
    .content {
        padding: 1.5rem;
    }
}

/* Add this to your style.css file */

/* Make the background image more visible between header and footer */
body {
    font-family: var(--font-sans);
    color: var(--text-color);
    background-color: var(--bg-light);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
    position: relative;
    min-height: 100vh;
}

/* Even more visible background image */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: url('/static/images/image.png');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    opacity: 0.35; /* Increased to 0.35 for much better visibility */
    z-index: -1;
    pointer-events: none;
}

.content {
    background-color: rgba(255, 255, 255, 0.85); /* More transparent to show background */
    border-radius: 12px;
    padding: 2.5rem;
    box-shadow: var(--shadow-lg);
    border: 1px solid rgba(226, 232, 240, 0.3);
    position: relative;
    backdrop-filter: blur(4px); /* Slightly stronger blur */
}

/* Ensure header has solid background to cover the image */
.header {
    background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
    color: #ffffff;
    text-align: center;
    padding: 3.5rem 1.5rem 2.5rem;
    box-shadow: var(--shadow-md);
    position: relative;
    z-index: 1;
}

/* Navbar with solid background */
.navbar {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 1.5rem;
    background-color: rgba(255, 255, 255, 0.98); /* Increased opacity */
    backdrop-filter: blur(8px);
    border-bottom: 1px solid var(--border-color);
    padding: 0.85rem 1rem;
    position: sticky;
    top: 0;
    z-index: 100;
}

/* Container with semi-transparent background to show image through */
.container {
    max-width: 960px;
    margin: 2.5rem auto;
    padding: 0 1.5rem;
    position: relative;
    z-index: 1;
}

/* Content card - slightly transparent to show background */
.content {
    background-color: rgba(255, 255, 255, 0.92); /* Semi-transparent white */
    border-radius: 12px;
    padding: 2.5rem;
    box-shadow: var(--shadow-lg);
    border: 1px solid rgba(226, 232, 240, 0.5);
    position: relative;
    backdrop-filter: blur(2px); /* Optional: slight blur effect */
}

/* Footer with solid background */
.footer {
    text-align: center;
    padding: 3rem 1.5rem;
    color: var(--text-muted);
    font-size: 0.875rem;
    position: relative;
    z-index: 1;
    background-color: var(--bg-light);
    border-top: 1px solid var(--border-color);
}