body {
    font-family: 'Inter', sans-serif;
    margin: 0;
    padding: 0;
    background-color: #0A1628;
    color: #FFFFFF;
    line-height: 1.6;
}

.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px 0;
}

/* Typography */
h1, h2, h3 {
    font-family: 'Montserrat', sans-serif;
    font-weight: 700;
    margin-bottom: 20px;
}

h1 {
    font-size: 3.5em;
    color: #F59E0B;
}

h2 {
    font-size: 2.5em;
    color: #F59E0B;
    text-align: center;
    margin-bottom: 40px;
}

h3 {
    font-size: 1.8em;
    color: #FFFFFF;
}

p {
    font-size: 1.1em;
    margin-bottom: 15px;
}

a {
    color: #F59E0B;
    text-decoration: none;
    transition: color 0.3s ease;
}

a:hover {
    color: #FFFFFF;
}

/* Header & Navigation */
header {
    background-color: rgba(10, 22, 40, 0.8);
    padding: 15px 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(245, 158, 11, 0.2);
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.8em;
    font-weight: 700;
    color: #FFFFFF;
}

nav ul {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
}

nav ul li {
    margin-left: 30px;
}

nav ul li a {
    font-size: 1.1em;
    font-weight: 500;
    color: rgba(255, 255, 255, 0.8);
    transition: color 0.3s ease;
}

nav ul li a:hover {
    color: #F59E0B;
}

/* Hero Section */
.hero-section {
    min-height: 80vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    background: linear-gradient(135deg, rgba(10, 22, 40, 1) 0%, rgba(30, 58, 138, 0.8) 100%);
    padding: 100px 0;
    position: relative;
    overflow: hidden;
}

.hero-content h1 {
    margin-bottom: 10px;
}

.hero-content h2 {
    font-size: 2em;
    color: #1E3A8A;
    margin-bottom: 20px;
    font-weight: 500;
}

.hero-content p {
    font-size: 1.4em;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 40px;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.cta-buttons {
    display: flex;
    justify-content: center;
    gap: 20px;
}

.btn {
    display: inline-block;
    padding: 15px 30px;
    border-radius: 5px;
    font-size: 1.2em;
    font-weight: 600;
    transition: background-color 0.3s ease, color 0.3s ease, border-color 0.3s ease;
    border: 2px solid transparent;
}

.btn-primary {
    background-color: #F59E0B;
    color: #0A1628;
    border-color: #F59E0B;
}

.btn-primary:hover {
    background-color: transparent;
    color: #F59E0B;
    border-color: #F59E0B;
}

.btn-secondary {
    background-color: transparent;
    color: #F59E0B;
    border-color: #F59E0B;
}

.btn-secondary:hover {
    background-color: #F59E0B;
    color: #0A1628;
}

/* Sections General Styling */
section {
    padding: 80px 0;
}

section:nth-child(even) {
    background-color: rgba(255, 255, 255, 0.03);
}

/* About Section */
.about-section p {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
    font-size: 1.2em;
    color: rgba(255, 255, 255, 0.85);
}

/* Experience Section */
.experience-section {
    background: linear-gradient(135deg, rgba(30, 58, 138, 0.8) 0%, rgba(10, 22, 40, 1) 100%);
}

.timeline {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
}

.timeline-card {
    background-color: rgba(255, 255, 255, 0.05);
    padding: 30px;
    border-radius: 8px;
    border-left: 3px solid #F59E0B;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.timeline-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
}

.timeline-card h3 {
    margin-top: 0;
    color: #F59E0B;
}

.timeline-card .date {
    font-size: 0.9em;
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 20px;
    font-weight: 500;
}

.timeline-card ul {
    list-style: disc;
    padding-left: 25px;
}

.timeline-card ul li {
    margin-bottom: 10px;
    color: rgba(255, 255, 255, 0.85);
}

/* Core Competencies Section */
.skills-grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 15px;
    padding-top: 20px;
}

.skill-tag {
    background-color: rgba(245, 158, 11, 0.1);
    color: #F59E0B;
    padding: 12px 20px;
    border-radius: 20px;
    font-size: 1.1em;
    font-weight: 500;
    border: 1px solid rgba(245, 158, 11, 0.3);
    transition: background-color 0.3s ease, color 0.3s ease;
}

.skill-tag:hover {
    background-color: #F59E0B;
    color: #0A1628;
}

/* Certifications Section */
.certifications-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-top: 30px;
}

.cert-card {
    background-color: rgba(255, 255, 255, 0.05);
    padding: 30px;
    border-radius: 8px;
    text-align: center;
    border-top: 3px solid #F59E0B;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.cert-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
}

.cert-card h3 {
    font-size: 1.3em;
    color: #F59E0B;
    margin-top: 0;
    margin-bottom: 10px;
}

/* Education Section */
.education-details {
    display: flex;
    justify-content: center;
    gap: 50px;
    flex-wrap: wrap;
}

.edu-item {
    background-color: rgba(255, 255, 255, 0.05);
    padding: 30px;
    border-radius: 8px;
    text-align: center;
    border-bottom: 3px solid #F59E0B;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.edu-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
}

.edu-item h3 {
    color: #F59E0B;
    margin-top: 0;
    margin-bottom: 10px;
}

.edu-item p {
    font-size: 1.1em;
    color: rgba(255, 255, 255, 0.85);
    margin-bottom: 5px;
}

.edu-item p:last-child {
    margin-bottom: 0;
}

/* Contact Section */
.contact-section {
    background: linear-gradient(135deg, rgba(10, 22, 40, 1) 0%, rgba(30, 58, 138, 0.8) 100%);
}

.contact-info {
    text-align: center;
    font-size: 1.2em;
    color: rgba(255, 255, 255, 0.85);
}

.contact-info p {
    margin-bottom: 15px;
}

.contact-info a {
    color: #F59E0B;
    font-weight: 500;
}

.contact-info a:hover {
    color: #FFFFFF;
}

/* Footer */
footer {
    background-color: rgba(0, 0, 0, 0.3);
    text-align: center;
    padding: 20px 0;
    font-size: 0.9em;
    color: rgba(255, 255, 255, 0.6);
}

/* Responsive Design */
@media (max-width: 768px) {
    h1 {
        font-size: 2.8em;
    }

    h2 {
        font-size: 2em;
    }

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

    .hero-content p {
        font-size: 1.2em;
    }

    nav ul {
        flex-direction: column;
        align-items: center;
        margin-top: 20px;
        display: none; /* Hide by default, implement JS toggle if needed */
    }

    nav ul li {
        margin: 10px 0;
    }

    .cta-buttons {
        flex-direction: column;
        gap: 15px;
    }

    .btn {
        width: 100%;
        box-sizing: border-box;
    }

    .timeline, .certifications-grid, .education-details {
        grid-template-columns: 1fr;
    }

    .container {
        width: 95%;
    }
}

/* Font Imports (Placeholder - actual fonts should be locally hosted) */
/* Assuming Inter and Montserrat are intended. For production, self-host these */
/* Example: @font-face { font-family: 'Inter'; src: none format('woff2'), none format('woff'); font-weight: normal; font-style: normal; }
@font-face { font-family: 'Montserrat'; src: none format('woff2'), none format('woff'); font-weight: 700; font-style: normal; } */

/* Placeholder for actual font imports if they were to be included */
@import none;