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

:root {
    --dark-blue-1: #1f59b1;
    --dark-blue-2: #23539b;
    --dark-blue-3: #152642;
    --dark-blue-4: #1A2E4F;
    --dark-blue-5: #1F365C;
    --accent-blue: #3A7BC8;
    --text-light: #E8E8E8;
    --text-muted: #B0B0B0;
    --card-bg: rgba(25, 40, 70, 0.6);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Helvetica', 'Arial', sans-serif;
    background: linear-gradient(to bottom, #1a2942 0%, #0a1221 100%);
    background-attachment: fixed;
    color: var(--text-light);
    line-height: 1.6;
    min-height: 100vh;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 40px;
}

/* Navigation */
.navbar {
    background: rgba(10, 22, 40, 0.95);
    backdrop-filter: blur(10px);
    padding: 1rem 0;
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 40px;
    display: flex;
    justify-content: flex-start;
    align-items: center;
    gap: 3rem;
}

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

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
    align-items: center;
    margin-left: auto;
}

.nav-menu a {
    color: var(--text-light);
    text-decoration: none;
    transition: color 0.3s ease;
    font-size: 0.95rem;
}

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

.resume-btn {
    background: rgba(58, 123, 200, 0.2);
    padding: 0.5rem 1.5rem;
    border-radius: 5px;
    border: 1px solid var(--accent-blue);
}

.resume-btn:hover {
    background: rgba(58, 123, 200, 0.4);
}

/* Hero Section */
.hero {
    padding: 150px 40px 40px;
    text-align: left;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: flex-start;
}

.hero-content {
    max-width: 1200px;
    margin: 0 auto;
    width: 100%;
}

.hero-title {
    font-size: 4rem;
    margin-bottom: 1rem;
    color: var(--text-light);
    font-weight: 700;
}

.hero-subtitle {
    font-size: 1.3rem;
    color: var(--text-muted);
    margin-bottom: 2.5rem;
    max-width: 800px;
    font-weight: 600;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    justify-content: flex-start;
    flex-wrap: wrap;
}

/* Buttons */
.btn {
    padding: 0.8rem 2rem;
    text-decoration: none;
    border-radius: 8px;
    transition: all 0.3s ease;
    font-weight: 500;
    display: inline-block;
}

.btn-primary {
    background: var(--accent-blue);
    color: white;
    border: 2px solid var(--accent-blue);
}

.btn-primary:hover {
    background: #2A5B8F;
    border-color: #2A5B8F;
    transform: translateY(-2px);
}

.btn-secondary {
    background: transparent;
    color: var(--text-light);
    border: 2px solid rgba(58, 123, 200, 0.5);
}

.btn-secondary:hover {
    background: rgba(58, 123, 200, 0.3);
    border-color: var(--accent-blue);
}

.btn-small {
    padding: 0.6rem 1.5rem;
    font-size: 0.9rem;
    background: rgba(58, 123, 200, 0.2);
    color: var(--text-light);
    border: 1px solid var(--accent-blue);
}

.btn-small:hover {
    background: rgba(58, 123, 200, 0.4);
}

.btn-outline {
    background: transparent;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

/* Sections */
section {
    padding: 30px 40px;
}

.section-title {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
    color: var(--text-light);
    font-weight: bold;
}

.section-subtitle {
    color: var(--text-muted);
    margin-bottom: 2rem;
    font-size: 1.1rem;
}

/* Projects Section */
.projects {
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
}

.project-card {
    background: var(--card-bg);
    backdrop-filter: blur(10px);
    padding: 2rem;
    border-radius: 12px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: all 0.3s ease;
}

.project-card:hover {
    transform: translateY(-5px);
    border-color: var(--accent-blue);
    box-shadow: 0 10px 30px rgba(58, 123, 200, 0.2);
}

.project-card h3 {
    font-size: 1.4rem;
    margin-bottom: 0.8rem;
    color: var(--text-light);
    font-weight: bold;
}

.project-tech {
    color: var(--accent-blue);
    font-size: 0.9rem;
    margin-bottom: 1rem;
    font-weight: 500;
}

.project-description {
    color: var(--text-muted);
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.project-buttons {
    display: flex;
    gap: 0.8rem;
    flex-wrap: wrap;
}

/* Skills Section */
.skills {
}

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

.skills-category {
    background: var(--card-bg);
    padding: 2rem;
    border-radius: 12px;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.skills-category h3 {
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
    color: var(--text-light);
    font-weight: bold;
}

.skill-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.8rem;
}

.skill-tag {
    background: rgba(58, 123, 200, 0.2);
    padding: 0.6rem 1.2rem;
    border-radius: 20px;
    font-size: 0.9rem;
    border: 1px solid rgba(58, 123, 200, 0.3);
    transition: all 0.3s ease;
}

.skill-tag:hover {
    background: rgba(58, 123, 200, 0.4);
    transform: translateY(-2px);
}

/* Experience Section */
.experience {
}

.experience-item {
    background: var(--card-bg);
    padding: 2rem;
    border-radius: 12px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    margin-bottom: 2rem;
}

.experience-item h3 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
    color: var(--text-light);
    font-weight: bold;
}

.experience-location {
    color: var(--text-muted);
    margin-bottom: 1.5rem;
    font-size: 0.95rem;
}

.experience-list {
    list-style-position: inside;
    color: var(--text-muted);
    line-height: 2;
}

.experience-list li {
    margin-bottom: 0.8rem;
}

/* Certificate Section */
.certificate {
}

.certificate-item {
    background: var(--card-bg);
    padding: 2rem;
    border-radius: 12px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    max-width: 600px;
}

.certificate-item h3 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
    color: var(--text-light);
    font-weight: bold;
}

.certificate-type {
    color: var(--text-muted);
}

/* Contact Section */
.contact {
    text-align: left;
}

.contact-text {
    color: var(--text-muted);
    margin-bottom: 2rem;
    font-size: 1.1rem;
}

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

/* Footer */
.footer {
    background: rgba(10, 22, 40, 0.95);
    padding: 2rem;
    text-align: left;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer p {
    color: var(--text-muted);
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-menu {
        gap: 1rem;
        font-size: 0.85rem;
    }

    .hero-title {
        font-size: 2.5rem;
    }

    .hero-subtitle {
        font-size: 1.1rem;
    }

    .section-title {
        font-size: 2rem;
    }

    .projects-grid {
        grid-template-columns: 1fr;
    }
}