:root {
    --primary-red: #d32f2f;
    --secondary-red: #b71c1c;
    --gradient-red: linear-gradient(135deg, #f44336 0%, #d32f2f 100%);
    --dark-bg: #1a1a1a;
    --light-bg: #f9f9f9;
    --text-color: #333;
    --white: #ffffff;
    --gray: #757575;
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--white);
}

header {
    background: var(--white);
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 5%;
    max-width: 1200px;
    margin: 0 auto;
}

.logo {
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--primary-red);
    text-decoration: none;
}

.nav-links {
    display: flex;
    list-style: none;
}

.nav-links li {
    margin-left: 2rem;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-color);
    font-weight: 500;
    transition: color 0.3s;
}

.nav-links a:hover {
    color: var(--primary-red);
}

.cta-button {
    background: var(--gradient-red);
    color: var(--white);
    padding: 0.8rem 1.5rem;
    border-radius: 5px;
    text-decoration: none;
    font-weight: bold;
    transition: transform 0.3s, box-shadow 0.3s;
    display: inline-block;
}

.cta-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(211, 47, 47, 0.4);
}

section {
    padding: 4rem 5%;
    max-width: 1200px;
    margin: 0 auto;
}

.hero {
    height: 80vh;
    background: linear-gradient(rgba(0,0,0,0.6), rgba(0,0,0,0.6)), url('images/charity_education_1.png');
    background-size: cover;
    background-position: center;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    color: var(--white);
    max-width: 100%;
}

.hero h1 {
    font-size: 3.5rem;
    margin-bottom: 1rem;
}

.hero p {
    font-size: 1.2rem;
    max-width: 800px;
    margin-bottom: 2rem;
}

.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.card {
    background: var(--white);
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.05);
    border-top: 5px solid var(--primary-red);
}

.card h3 {
    margin-bottom: 1rem;
    color: var(--primary-red);
}

footer {
    background: var(--dark-bg);
    color: var(--white);
    padding: 4rem 5%;
    text-align: center;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    text-align: left;
}

.footer-bottom {
    margin-top: 3rem;
    padding-top: 2rem;
    border-top: 1px solid #444;
    font-size: 0.9rem;
    color: var(--gray);
}

.principal-section {
    display: flex;
    align-items: center;
    gap: 4rem;
    background: var(--light-bg);
    padding: 4rem 5%;
    border-radius: 20px;
}

.principal-img {
    width: 300px;
    height: 300px;
    border-radius: 50%;
    object-fit: cover;
    border: 8px solid var(--white);
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
}

.contact-form {
    max-width: 600px;
    margin: 0 auto;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
}

.form-group input, .form-group textarea {
    width: 100%;
    padding: 0.8rem;
    border: 1px solid #ddd;
    border-radius: 5px;
}

.announcement-bar {
    background: var(--gradient-red);
    color: var(--white);
    text-align: center;
    padding: 0.5rem;
    font-weight: bold;
}

@media (max-width: 768px) {
    .hero h1 { font-size: 2.5rem; }
    .principal-section { flex-direction: column; text-align: center; }
    .nav-links { display: none; }
}