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

:root {
    --primary-color: #0d1b2a;
    --secondary-color: #e85d04;
    --accent-color: #ffb703;
    --text-light: #e0e0e0;
    --text-dark: #333;
    --card-bg: #1a2332;
    --border-color: #333;
}

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

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

/* Navigation */
.navbar {
    background-color: rgba(13, 27, 42, 0.95);
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 100;
    border-bottom: 2px solid var(--secondary-color);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

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

.nav-links {
    display: flex;
    list-style: none;
    gap: 2rem;
}

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

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

/* Hero Section */
.hero {
    background: linear-gradient(135deg, var(--primary-color) 0%, rgba(232, 93, 4, 0.1) 100%);
    padding: 100px 20px;
    text-align: center;
    min-height: 500px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
    color: var(--accent-color);
}

.hero p {
    font-size: 1.3rem;
    margin-bottom: 2rem;
    color: var(--text-light);
}

.cta-button {
    display: inline-block;
    padding: 12px 30px;
    background-color: var(--secondary-color);
    color: white;
    text-decoration: none;
    border-radius: 5px;
    transition: background-color 0.3s;
    font-weight: bold;
}

.cta-button:hover {
    background-color: var(--accent-color);
    color: var(--text-dark);
}

/* Sections */
section {
    padding: 60px 20px;
}

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

/* About Section */
.about {
    background-color: var(--card-bg);
}

.about p {
    max-width: 800px;
    margin: 0 auto;
    font-size: 1.1rem;
    line-height: 1.8;
}

/* Certifications Section */
.certifications {
    background-color: var(--primary-color);
}

.cert-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.cert-card {
    background-color: var(--card-bg);
    padding: 2rem;
    border-radius: 8px;
    border-left: 4px solid var(--secondary-color);
    transition: transform 0.3s, box-shadow 0.3s;
}

.cert-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(232, 93, 4, 0.2);
}

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

.cert-badge {
    display: inline-block;
    background-color: var(--secondary-color);
    color: white;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.85rem;
    margin-top: 1rem;
}

/* Projects Section */
.projects {
    background-color: var(--card-bg);
}

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

.project-card {
    background-color: rgba(26, 35, 50, 0.8);
    padding: 2rem;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    transition: all 0.3s;
}

.project-card:hover {
    background-color: var(--primary-color);
    border-color: var(--secondary-color);
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(232, 93, 4, 0.2);
}

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

.project-link {
    display: inline-block;
    color: var(--secondary-color);
    text-decoration: none;
    margin-top: 1rem;
    font-weight: bold;
    transition: color 0.3s;
}

.project-link:hover {
    color: var(--accent-color);
}

/* Skills Section */
.skills {
    background-color: var(--primary-color);
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.skill-category {
    background-color: var(--card-bg);
    padding: 2rem;
    border-radius: 8px;
    border-top: 3px solid var(--secondary-color);
}

.skill-category h3 {
    color: var(--accent-color);
    margin-bottom: 1.5rem;
}

.skill-category ul {
    list-style: none;
}

.skill-category li {
    padding: 0.5rem 0;
    color: var(--text-light);
    border-bottom: 1px solid rgba(232, 93, 4, 0.2);
}

.skill-category li:last-child {
    border-bottom: none;
}

/* Contact Section */
.contact {
    background-color: var(--card-bg);
    text-align: center;
}

.contact p {
    font-size: 1.1rem;
    margin-bottom: 2rem;
}

.contact-links {
    display: flex;
    justify-content: center;
    gap: 1rem;
    flex-wrap: wrap;
}

.contact-btn {
    padding: 12px 25px;
    background-color: var(--secondary-color);
    color: white;
    text-decoration: none;
    border-radius: 5px;
    transition: all 0.3s;
}

.contact-btn:hover {
    background-color: var(--accent-color);
    color: var(--text-dark);
    transform: scale(1.05);
}

/* Footer */
footer {
    background-color: rgba(13, 27, 42, 0.8);
    padding: 2rem 0;
    text-align: center;
    border-top: 1px solid var(--border-color);
}

/* Responsive */
@media (max-width: 768px) {
    .hero h1 {
        font-size: 2rem;
    }

    .nav-links {
        gap: 1rem;
        font-size: 0.9rem;
    }

    section h2 {
        font-size: 2rem;
    }

    .cert-grid,
    .project-grid,
    .skills-grid {
        grid-template-columns: 1fr;
    }
}