/* Reset and Base Styles */
:root {
    --primary-color: #0066cc;
    --text-color: #333333;
    --background-light: #f5f5f5;
    --white: #ffffff;
    --transition: all 0.3s ease;
}

@media (prefers-color-scheme: dark) {
    :root {
        --primary-color: #4d94ff;
        --text-color: #e0e0e0;
        --background-light: #2c2c2c;
        --white: #1a1a1a;
    }

    .experience-card, .cert-card, .about-content, .skill-card, .content-box {
        background: #222;
        color: var(--text-color);
    }

        .nav-links a, .skill-card h3, .about-content h1, .cert-content h3 {
            color: #ddd;
        }

    .cert-date, .cert-id {
        color: #aaa;
    }
}

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

body {
    font-family: 'Inter', sans-serif;
    line-height: 1.6;
    color: var(--text-color);
}

/* Header Navigation Styles */
.header {
    position: fixed;
    top: 0;
    width: 100%;
    background: var(--white);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    z-index: 1000;
}

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

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
    cursor: pointer; /* Indicates that the element is clickable */
    text-decoration: none; /* Ensures no underlines appear (optional) */
    display: inline-block; /* Maintains block-like behavior */
    transition: color 0.3s ease; /* Smooth color transition for hover */
}

    .logo:hover {
        color: var(--secondary-color); /* Changes color on hover (use a defined secondary color) */
    }


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

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

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

.contact-btn {
    padding: 0.5rem 1rem;
    background: var(--primary-color);
    color: var(--white) !important;
    border-radius: 4px;
}

/* Hero Section Styles */
.hero {
    padding: 8rem 1rem 4rem;
    background: var(--background-light);
    text-align: center;
}

.hero-content {
    max-width: 800px;
    margin: 0 auto;
}

.profile-container {
    width: 300px;
    height: 300px;
    margin: 0 auto 2rem;
    border-radius: 50%;
    overflow: hidden;
    border: 4px solid var(--white);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

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

.hero-title {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.highlight {
    color: var(--primary-color);
}

.hero-bio {
    max-width: 600px;
    margin: 0 auto 2rem;
    font-size: 1.1rem;
}

/* Security Section Styles */
.security-section {
    padding: 4rem 1rem;
    background: var(--white);
}

.security-grid {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
    align-items: center;
}

.security-image {
    height: 400px;
    background: url('/assets/images/What-is-Cyber-Security.jpg') center/cover;
    border-radius: 8px;
}

.security-content {
    padding: 2rem;
}

.content-box {
    background: var(--background-light);
    padding: 2rem;
    border-radius: 8px;
}

/* Skills Section */
.skills-section {
    padding: 4rem 1rem;
    background: var(--white);
}

.skills-container {
    max-width: 1200px;
    margin: 0 auto;
    text-align: center;
}

    .skills-container h2 {
        font-size: 2.5rem;
        margin-bottom: 3rem;
    }

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

.skill-card {
    padding: 2rem;
    background: var(--background-light);
    border-radius: 8px;
    transition: transform 0.3s ease;
}

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

.skill-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

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

/* Highlights Section */
.highlights-section {
    padding: 4rem 1rem;
    background: var(--background-light);
}

.highlights-container {
    max-width: 1200px;
    margin: 0 auto;
    text-align: center;
}

    .highlights-container h2 {
        font-size: 2.5rem;
        margin-bottom: 3rem;
    }

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

.stat-card {
    padding: 2rem;
    background: var(--white);
    border-radius: 8px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
}

    .stat-card h3 {
        font-size: 2.5rem;
        color: var(--primary-color);
        margin-bottom: 0.5rem;
    }

    .stat-card p {
        color: var(--text-color);
        font-weight: 500;
    }

@media (max-width: 768px) {
    .skills-container h2,
    .highlights-container h2 {
        font-size: 2rem;
    }

    .stat-card h3 {
        font-size: 2rem;
    }
}

/* Button Styles */
.cta-button, .outline-button {
    display: inline-block;
    padding: 0.8rem 1.5rem;
    text-decoration: none;
    border-radius: 4px;
    transition: var(--transition);
    font-weight: 500;
}

.cta-button {
    background: var(--primary-color);
    color: var(--white);
}

.outline-button {
    border: 2px solid var(--primary-color);
    color: var(--primary-color);
}

/* Footer Styles */
.footer {
    background: var(--background-light);
    padding: 2rem 1rem;
    text-align: center;
}

.social-links {
    margin-bottom: 1rem;
}

    .social-links a {
        color: var(--text-color);
        text-decoration: none;
        margin: 0 1rem;
        transition: var(--transition);
    }

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

/* Mobile Navigation Styles */
@media (max-width: 768px) {
    .nav-links {
        display: none;
        position: fixed;
        inset: 70px 0 0 0;
        background: var(--white);
        flex-direction: column;
        padding: 2rem;
        z-index: 999;
    }

        .nav-links[data-visible="true"] {
            display: flex;
        }

    .mobile-nav-toggle {
        display: block;
        position: relative;
        background: none;
        border: none;
        z-index: 1000;
        padding: 0.5rem;
    }

    .hamburger,
    .hamburger::before,
    .hamburger::after {
        display: block;
        width: 24px;
        height: 3px;
        background: var(--text-color);
        transition: transform 0.3s ease;
    }

        .hamburger::before,
        .hamburger::after {
            content: '';
            position: absolute;
        }

        .hamburger::before {
            top: -8px;
        }

        .hamburger::after {
            bottom: -8px;
        }

    /* Animation for menu toggle */
    .mobile-nav-toggle[aria-expanded="true"] .hamburger {
        transform: rotate(45deg);
    }

        .mobile-nav-toggle[aria-expanded="true"] .hamburger::before {
            transform: rotate(90deg) translate(8px, 0);
        }

        .mobile-nav-toggle[aria-expanded="true"] .hamburger::after {
            transform: rotate(90deg) translate(-8px, 0);
        }

    .nav-links li {
        margin: 1rem 0;
        text-align: center;
    }

    .contact-btn {
        display: inline-block;
        margin-top: 1rem;
    }
}


/* Media Queries */
@media (max-width: 768px) {
    .mobile-nav-toggle {
        display: block;
        background: none;
        border: none;
        padding: 0.5rem;
        cursor: pointer;
    }

    .hamburger {
        width: 24px;
        height: 2px;
        background: var(--text-color);
        position: relative;
    }

        .hamburger::before,
        .hamburger::after {
            content: '';
            position: absolute;
            width: 100%;
            height: 100%;
            background: var(--text-color);
            transition: var(--transition);
        }

        .hamburger::before {
            top: -6px;
        }

        .hamburger::after {
            bottom: -6px;
        }

    .nav-links {
        position: fixed;
        inset: 70px 0 0 0;
        background: var(--white);
        flex-direction: column;
        padding: 2rem;
        transform: translateY(-100%);
        transition: var(--transition);
    }

        .nav-links[data-visible="true"] {
            transform: translateY(0);
        }

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

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

/* Accessibility */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}
/* About Page Specific Styles */
.about-section {
    padding: 8rem 1rem 4rem;
    background: var(--background-light);
}

.about-container {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 3fr 2fr;
    gap: 4rem;
    align-items: start;
}

.about-content {
    padding: 2rem;
    background: var(--white);
    border-radius: 8px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
}

    .about-content h1 {
        font-size: 2.5rem;
        margin-bottom: 2rem;
        color: var(--text-color);
    }

.timeline {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.timeline-item {
    padding-left: 2rem;
    border-left: 3px solid var(--primary-color);
    position: relative;
}

    .timeline-item::before {
        content: '';
        position: absolute;
        left: -8px;
        top: 0;
        width: 13px;
        height: 13px;
        background: var(--primary-color);
        border-radius: 50%;
    }

    .timeline-item h3 {
        color: var(--primary-color);
        margin-bottom: 1rem;
        font-size: 1.2rem;
    }

.responsibility-list {
    list-style-type: none;
    padding-left: 1rem;
    margin-top: 1rem;
}

    .responsibility-list li {
        position: relative;
        padding-left: 1.5rem;
        margin-bottom: 0.5rem;
    }

        .responsibility-list li::before {
            content: '→';
            position: absolute;
            left: 0;
            color: var(--primary-color);
        }

.about-image {
    position: sticky;
    top: 100px;
}

.profile-photo {
    width: 100%;
    border-radius: 8px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

/* Media Queries */
@media (max-width: 968px) {
    .about-container {
        grid-template-columns: 1fr;
    }

    .about-image {
        position: relative;
        top: 0;
        order: 1;
        max-width: 500px;
        margin: 0 auto;
    }
}

@media (max-width: 768px) {
    .about-section {
        padding: 6rem 1rem 2rem;
    }

    .about-content {
        padding: 1.5rem;
    }

        .about-content h1 {
            font-size: 2rem;
        }

    .timeline-item {
        padding-left: 1.5rem;
    }
}

/* Certifications Page Styles */
.certifications-section {
    padding: 8rem 1rem 4rem;
    background: var(--background-light);
}

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

    .certifications-container h1 {
        text-align: center;
        margin-bottom: 3rem;
        font-size: 2.5rem;
    }

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

.cert-card {
    background: var(--white);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s ease;
}

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

.cert-image {
    width: 100%;
    height: 200px;
    object-fit: contain;
    padding: 1rem;
    background: var(--white);
}

.cert-content {
    padding: 1.5rem;
}

    .cert-content h3 {
        font-size: 1.2rem;
        margin-bottom: 0.5rem;
        color: var(--text-color);
    }

.cert-date, .cert-id {
    font-size: 0.9rem;
    color: #666;
    margin-bottom: 0.5rem;
}

.cert-link {
    display: inline-block;
    margin-top: 1rem;
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
}

    .cert-link:hover {
        text-decoration: underline;
    }

@media (max-width: 768px) {
    .certifications-section {
        padding: 6rem 1rem 2rem;
    }

    .certifications-container h1 {
        font-size: 2rem;
    }

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

/* Resume Page Styles */
.resume-section {
    padding: 8rem 1rem 4rem;
    background: var(--background-light);
    min-height: calc(100vh - 200px);
}

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

.resume-frame-wrapper {
    background: var(--white);
    padding: 2rem;
    border-radius: 8px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
    position: relative;
}

.resume-frame {
    width: 100%;
    height: 80vh;
    border: none;
    border-radius: 4px;
    background: var(--white);
}

.download-button {
    position: absolute;
    top: 1rem;
    right: 1rem;
    padding: 0.8rem 1.5rem;
    background: var(--primary-color);
    color: var(--white);
    text-decoration: none;
    border-radius: 4px;
    font-weight: 500;
    transition: var(--transition);
}

    .download-button:hover {
        opacity: 0.9;
        transform: translateY(-2px);
    }

@media (max-width: 768px) {
    .resume-section {
        padding: 6rem 1rem 2rem;
    }

    .resume-frame-wrapper {
        padding: 1rem;
    }

    .resume-frame {
        height: 70vh;
    }

    .download-button {
        position: static;
        display: block;
        text-align: center;
        margin-top: 1rem;
    }
}

/* Work Experience Page Styles */
.experience-section {
    padding: 8rem 1rem 4rem;
    background: var(--background-light);
}

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

    .experience-container h1 {
        text-align: center;
        margin-bottom: 3rem;
        font-size: 2.5rem;
    }

.experience-group {
    margin-bottom: 4rem;
}

    .experience-group h2 {
        color: var(--text-color);
        margin-bottom: 2rem;
        font-size: 1.8rem;
        border-bottom: 2px solid var(--primary-color);
        padding-bottom: 0.5rem;
    }

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

.experience-card {
    background: var(--white);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s ease;
    padding: 2rem;
    display: flex;
    flex-direction: column;
    height: 100%;
}

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

.experience-logo {
    width: 100%;
    height: 150px;
    object-fit: contain;
    margin-bottom: 1.5rem;
}

.experience-content {
    text-align: center;
    display: flex;
    flex-direction: column;
    flex: 1;
}

    .experience-content h3 {
        color: var(--text-color);
        font-size: 1.4rem;
        margin-bottom: 1rem;
    }

.position {
    color: var(--text-color);
    margin-bottom: 0.5rem;
    font-size: 1rem;
    line-height: 1.4;
}

.grade {
    color: var(--primary-color);
    font-weight: 600;
    margin-bottom: 1rem;
}

.experience-link {
    margin-top: auto;
    display: inline-block;
    padding: 0.6rem 1.2rem;
    color: var(--primary-color);
    text-decoration: none;
    border: 2px solid var(--primary-color);
    border-radius: 4px;
    transition: all 0.3s ease;
    font-weight: 500;
}

    .experience-link:hover {
        background: var(--primary-color);
        color: var(--white);
    }

.company-group {
    background: var(--white);
    border-radius: 8px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
    margin-bottom: 2rem;
    padding: 2rem;
}

.company-header {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    margin-bottom: 2rem;
    padding-bottom: 1rem;
    border-bottom: 2px solid var(--background-light);
}

    .company-header h3 {
        font-size: 1.4rem;
        color: var(--text-color);
    }

.company-logo {
    width: 80px;
    height: 80px;
    object-fit: contain;
}

.position-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
}

@media (max-width: 768px) {
    .experience-section {
        padding: 6rem 1rem 2rem;
    }

    .experience-container h1 {
        font-size: 2rem;
    }

    .experience-group h2 {
        font-size: 1.5rem;
    }

    .experience-card {
        padding: 1.5rem;
    }

    .company-group {
        padding: 1.5rem;
    }

    .company-header {
        flex-direction: column;
        text-align: center;
        gap: 1rem;
    }
}

/* Acknowledgments Page Styles */
.acknowledgments-section {
    padding: 8rem 1rem 4rem;
    background: var(--background-light);
}

.acknowledgments-container {
    max-width: 900px;
    margin: 0 auto;
}

    .acknowledgments-container h1 {
        text-align: center;
        margin-bottom: 3rem;
        font-size: 2.5rem;
    }

.acknowledgments-content {
    background: var(--white);
    padding: 2rem;
    border-radius: 8px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
}

.intro-text {
    font-size: 1.1rem;
    line-height: 1.6;
    margin-bottom: 2rem;
}

.researchers-list h2,
.disclosure-info h2 {
    color: var(--text-color);
    font-size: 1.8rem;
    margin-bottom: 1.5rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid var(--primary-color);
}

.researcher-card {
    background: var(--background-light);
    border-radius: 6px;
    padding: 1.5rem;
    margin-bottom: 2rem;
    border-left: 4px solid var(--primary-color);
}

.researcher-name {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--primary-color);
    text-decoration: none;
    display: block;
    margin-bottom: 0.5rem;
}

    .researcher-name:hover {
        text-decoration: underline;
    }

.researcher-contribution {
    color: var(--text-color);
    font-size: 1rem;
    line-height: 1.5;
}

.disclosure-info {
    margin-top: 3rem;
}

.policy-link {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
}

    .policy-link:hover {
        text-decoration: underline;
    }

@media (max-width: 768px) {
    .acknowledgments-section {
        padding: 6rem 1rem 2rem;
    }

    .acknowledgments-container h1 {
        font-size: 2rem;
    }

    .acknowledgments-content {
        padding: 1.5rem;
    }
}

/* Role Page Styles */
.role-section {
    padding: 8rem 1rem 4rem;
    background: var(--background-light);
}

.role-container {
    max-width: 1000px;
    margin: 0 auto;
    background: var(--white);
    padding: 2rem;
    border-radius: 8px;
    box-shadow: var(--shadow);
}

.role-header {
    text-align: center;
    margin-bottom: 3rem;
}

    .role-header h1 {
        font-size: 2.5rem;
        margin-bottom: 1rem;
    }

.role-meta {
    color: #666;
    line-height: 1.6;
}

    .role-meta p {
        margin: 0.5rem 0;
    }

.role-content {
    display: grid;
    gap: 2rem;
}

.role-overview,
.role-responsibilities,
.role-achievements,
.role-technical {
    padding: 2rem;
    background: var(--background-light);
    border-radius: 8px;
}

.role-content h2 {
    color: var(--primary);
    font-size: 1.5rem;
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid var(--primary);
}

.role-content ul {
    list-style: none;
    padding-left: 1.5rem;
}

.role-content li {
    position: relative;
    margin-bottom: 0.8rem;
    line-height: 1.6;
}

    .role-content li::before {
        content: '→';
        position: absolute;
        left: -1.5rem;
        color: var(--primary);
    }

@media (max-width: 768px) {
    .role-container {
        padding: 1.5rem;
    }

    .role-header h1 {
        font-size: 2rem;
    }

    .role-content > div {
        padding: 1.5rem;
    }
}

.highlight-text {
    color: var(--primary);
    font-weight: 600;
    margin-top: 0.5rem;
}

@media (max-width: 768px) {
    .skills-container {
        position: relative;
        width: 100%;
        padding: 0 1rem;
    }

    .skills-grid {
        display: block;
        width: 100%;
        position: relative;
    }

    .skill-card {
        display: none;
        width: 100%;
        margin: 0 auto;
    }

        .skill-card.active {
            display: block;
        }

    .carousel-controls {
        display: flex;
        justify-content: center;
        gap: 1rem;
        margin-top: 2rem;
    }

    .carousel-dots {
        display: flex;
        gap: 0.5rem;
        margin-top: 1rem;
        justify-content: center;
    }

    .carousel-dot {
        width: 8px;
        height: 8px;
        border-radius: 50%;
        background: #ccc;
        cursor: pointer;
        transition: background-color 0.3s ease;
    }

        .carousel-dot.active {
            background: var(--primary);
        }

    .carousel-button {
        background: none;
        border: none;
        color: var(--primary);
        font-size: 1.5rem;
        cursor: pointer;
        padding: 0.5rem;
    }

        .carousel-button:disabled {
            color: #ccc;
            cursor: not-allowed;
        }
}

@media (min-width: 769px) {
    .carousel-controls,
    .carousel-dots {
        display: none;
    }
}

/* Security Policy Styles */
.policy-section {
    padding: 8rem 1rem 4rem;
    background: var(--background-light);
}

.policy-container {
    max-width: 900px;
    margin: 0 auto;
    background: var(--white);
    padding: 2rem;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}

    .policy-container h1 {
        text-align: center;
        margin-bottom: 3rem;
        font-size: 2.5rem;
    }

.policy-content {
    color: var(--text);
}

.policy-block {
    margin-bottom: 2rem;
}

    .policy-block h2 {
        color: var(--primary);
        font-size: 1.5rem;
        margin-bottom: 1rem;
        padding-bottom: 0.5rem;
        border-bottom: 2px solid var(--primary);
    }

    .policy-block p {
        margin-bottom: 1rem;
        line-height: 1.6;
    }

    .policy-block ul {
        list-style: none;
        padding-left: 1.5rem;
        margin-bottom: 1rem;
    }

    .policy-block li {
        position: relative;
        margin-bottom: 0.8rem;
        line-height: 1.6;
    }

        .policy-block li::before {
            content: '→';
            position: absolute;
            left: -1.5rem;
            color: var(--primary);
        }

    .policy-block a {
        color: var(--primary);
        text-decoration: none;
        transition: var(--transition);
    }

        .policy-block a:hover {
            text-decoration: underline;
        }

@media (max-width: 768px) {
    .policy-container {
        padding: 1.5rem;
    }

        .policy-container h1 {
            font-size: 2rem;
        }

    .policy-block h2 {
        font-size: 1.3rem;
    }
}