/* Root CSS Variables for Colors and Spacing */
:root {
    --primary-blue: #3b82f6;
    --dark-blue: #2563eb;
    --light-gray-bg: #f8fafc;
    --medium-gray-bg: #e2e8f0;
    --dark-text: #1e293b;
    --medium-text: #475569;
    --light-text: #64748b;
    --border-color: #d1d5db;
    --shadow-color: rgba(21, 28, 39, 0.08);
    --error-red: #ef4444;

    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 2.5rem;
    --spacing-xxl: 3rem;
}

/* General Body Styles */
body {
    font-family: 'Inter', 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--light-gray-bg);
    color: var(--dark-text);
    margin: 0;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Link to Google Fonts */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;700&display=swap');

/* Main Content Wrapper */
.main-container {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: var(--spacing-lg);
}

.content-wrapper {
    max-width: 800px;
    width: 100%;
    background-color: #ffffff;
    padding: var(--spacing-xl);
    border-radius: 12px;
    box-shadow: 0 8px 24px var(--shadow-color);
    text-align: left;
    /* Animation */
    animation: fadeInSlideUp 0.7s ease-out forwards;
    opacity: 0; /* Start invisible */
    transform: translateY(20px); /* Start slightly below */
}

/* Headings */
h1, h2, h3, h4 {
    color: var(--primary-blue);
    margin-top: 0;
    line-height: 1.2;
}

h1 {
    font-size: var(--spacing-xxl); /* 3rem */
    font-weight: 700;
    margin-bottom: var(--spacing-lg); /* 2rem */
    text-align: center;
    animation: fadeInSlideUp 0.7s ease-out forwards;
    opacity: 0;
    transform: translateY(20px);
    animation-delay: 0.1s; /* Slight delay for H1 */
}

h2 {
    font-size: var(--spacing-xl); /* 2.5rem */
    font-weight: 700;
    margin-bottom: var(--spacing-md); /* 1.5rem */
    border-bottom: 1px solid var(--medium-gray-bg);
    padding-bottom: var(--spacing-sm); /* 1rem */
}

h3 {
    font-size: var(--spacing-lg); /* 2rem */
    font-weight: 500;
    margin-top: var(--spacing-xxl); /* 3rem */
    margin-bottom: var(--spacing-md); /* 1.5rem */
}

h4 {
    font-size: var(--spacing-md); /* 1.5rem */
    font-weight: 500;
    margin-top: var(--spacing-lg); /* 2rem */
    margin-bottom: var(--spacing-sm); /* 1rem */
}

p, ul {
    line-height: 1.7;
    margin-bottom: var(--spacing-sm); /* 1rem */
    color: var(--medium-text);
}

ul {
    padding-left: var(--spacing-md); /* 1.5rem */
}

/* Links and Buttons */
a {
    color: var(--primary-blue);
    text-decoration: none;
    transition: color 0.2s ease;
}

a:hover {
    color: var(--dark-blue);
    text-decoration: underline;
}

.links {
    text-align: center;
    margin-top: var(--spacing-lg); /* 2rem */
}

.links a, button {
    display: inline-block;
    background-color: var(--primary-blue);
    color: white;
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 500;
    transition: background-color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
    margin: var(--spacing-xs); /* 0.5rem */
    border: none; /* Remove default button border */
    cursor: pointer;
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

.links a:hover, button:hover {
    background-color: var(--dark-blue);
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(0,0,0,0.15);
    color: white; /* Ensure text color remains white on hover */
    text-decoration: none;
}

.home-link {
    display: block;
    text-align: center;
    margin-top: var(--spacing-lg); /* 2rem */
    font-weight: 500;
    font-size: 1.1rem;
}

/* Footer */
.footer {
    background-color: var(--medium-gray-bg);
    color: var(--light-text);
    text-align: center;
    padding: var(--spacing-md); /* 1.5rem */
    font-size: 0.9rem;
}

.footer a {
    color: var(--primary-blue);
    font-weight: 500;
}

/* Page Transition Animation */
@keyframes fadeInSlideUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}