:root {
    --primary-color: #2E8B57;
    --secondary-color: #C0C0C0;
    --accent-color: #4CAF50;
    --text-color: #333;
    --background-color: #f9f9f9;
    --card-background: #ffffff;
}

* {
    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(--background-color);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header & Navigation */
header {
    background-color: var(--card-background);
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

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

nav ul {
    display: flex;
    list-style: none;
    gap: 2rem;
    flex-wrap: wrap;
}

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

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

/* Hero Section */
#hero {
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: white;
    padding-top: 60px;
}

.hero-content {
    max-width: 800px;
    padding: 0 20px;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.profile-image {
    width: 200px;
    height: 200px;
    border-radius: 50%;
    overflow: hidden;
    margin-bottom: 2rem;
    border: 4px solid var(--secondary-color);
    box-shadow: 0 4px 10px rgba(0,0,0,0.2);
}

.profile-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

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

.hero-content h2 {
    font-size: 2rem;
    margin-bottom: 1.5rem;
    font-weight: 400;
}

/* Quote Section */
.quote-section {
    background-color: var(--card-background);
    padding: 4rem 0;
}

.quote-box {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
    padding: 2rem;
    position: relative;
}

.quote-box i {
    color: var(--primary-color);
    font-size: 2rem;
    margin-bottom: 1rem;
}

#daily-quote {
    font-size: 1.5rem;
    font-style: italic;
    margin-bottom: 1rem;
}

.quote-author {
    color: var(--secondary-color);
    font-weight: 500;
}

/* Sections Common Styles */
section {
    padding: 5rem 0;
}

section h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    color: var(--primary-color);
}

/* Certifications Section */
.certifications-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.certification-card {
    background-color: var(--card-background);
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    text-align: center;
    transition: transform 0.3s;
}

.certification-card:hover {
    transform: translateY(-5px);
}

.certification-card i {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.certification-card h3 {
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.certification-details {
    margin-top: 1rem;
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    justify-content: center;
}

.cert-tag {
    background-color: var(--secondary-color);
    color: var(--text-color);
    padding: 0.3rem 0.8rem;
    border-radius: 15px;
    font-size: 0.9rem;
}

/* Projects Section */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.project-card {
    background-color: var(--card-background);
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    text-align: center;
    transition: transform 0.3s;
}

.project-card:hover {
    transform: translateY(-5px);
}

.project-card.featured {
    border: 2px solid var(--primary-color);
}

.project-card i {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

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

.project-interests {
    margin-top: 1rem;
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    justify-content: center;
}

.interest-tag {
    background-color: var(--secondary-color);
    color: var(--text-color);
    padding: 0.3rem 0.8rem;
    border-radius: 15px;
    font-size: 0.9rem;
}

/* Interests Section */
.interests-section {
    margin-top: 4rem;
}

.interests-section h3 {
    text-align: center;
    color: var(--primary-color);
    margin-bottom: 2rem;
    font-size: 2rem;
}

.interests-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
}

.interest-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
    padding: 1.5rem;
    background-color: var(--card-background);
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    transition: transform 0.3s;
}

.interest-item:hover {
    transform: translateY(-5px);
}

.interest-item i {
    font-size: 2rem;
    color: var(--primary-color);
}

/* Donation Section */
.donation-box {
    text-align: center;
    max-width: 600px;
    margin: 0 auto;
    padding: 2rem;
    background-color: var(--card-background);
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.donation-options {
    display: flex;
    justify-content: center;
    gap: 1rem;
    flex-wrap: wrap;
    margin-top: 2rem;
}

/* Buttons */
.btn-donate,
.btn-submit {
    background-color: var(--primary-color);
    color: white;
    padding: 0.8rem 1.5rem;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    font-weight: 500;
    transition: background-color 0.3s;
    text-decoration: none;
}

.btn-donate:hover,
.btn-submit:hover {
    background-color: var(--accent-color);
}

/* Contact Section */
.contact-info {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.5rem;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    text-decoration: none;
    color: var(--text-color);
    transition: color 0.3s;
}

.contact-item:hover {
    color: var(--primary-color);
}

.contact-item i {
    font-size: 1.2rem;
}

/* Footer */
footer {
    background-color: var(--card-background);
    padding: 2rem 0;
    text-align: center;
    margin-top: 2rem;
}

.social-share {
    margin-top: 1rem;
}

.share-button {
    color: var(--primary-color);
    font-size: 1.5rem;
    margin: 0 0.5rem;
    text-decoration: none;
    transition: color 0.3s;
}

.share-button:hover {
    color: var(--accent-color);
}

/* Responsive Design */
@media (max-width: 768px) {
    nav {
        flex-direction: column;
        gap: 1rem;
    }

    nav ul {
        flex-direction: column;
        text-align: center;
        gap: 1rem;
    }

    .hero-content h1 {
        font-size: 2.5rem;
    }

    .hero-content h2 {
        font-size: 1.5rem;
    }

    section {
        padding: 3rem 0;
    }

    section h2 {
        font-size: 2rem;
    }

    .donation-options {
        flex-direction: column;
    }

    .interests-grid {
        grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    }
}