:root {
    /* Professional Navy & Teal Color Scheme */
    --navy-dark: #0A2463;
    --navy-medium: #1E3A8A;
    --navy-light: #3B5998;
    --teal-primary: #14B8A6;
    --teal-light: #5EEAD4;
    --teal-pale: #E8F4F8;
    
    --text-primary: #1A202C;
    --text-secondary: #4A5568;
    --text-light: #718096;
    --bg-white: #FFFFFF;
    --bg-light: #F7FAFC;
    --bg-lighter: #EDF2F7;
    --border-color: #E2E8F0;
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.12), 0 1px 2px rgba(0, 0, 0, 0.24);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.1);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Source Sans 3', -apple-system, BlinkMacSystemFont, sans-serif;
    color: var(--text-primary);
    background-color: var(--bg-white);
    line-height: 1.7;
    font-size: 16px;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: var(--bg-white);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
    transition: box-shadow 0.3s ease;
}

.header.scrolled {
    box-shadow: var(--shadow-sm);
}

.nav {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1.25rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-logo {
    font-family: 'Playfair Display', serif;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--navy-dark);
}

.nav-links {
    display: flex;
    gap: 2.5rem;
    list-style: none;
}

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.95rem;
    letter-spacing: 0.3px;
    transition: color 0.3s ease;
}

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

/* Hero Section */
.hero {
    padding: 8rem 0 6rem;
    background: linear-gradient(135deg, var(--bg-white) 0%, var(--bg-light) 100%);
    margin-top: 80px;
}

.hero-grid {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 4rem;
    align-items: center;
}

.hero-title {
    font-family: 'Playfair Display', serif;
    font-size: 2.25rem;     
    font-weight: 700;
    line-height: 1.3;
    color: var(--navy-dark);
    margin-bottom: 0.5rem;
}

.hero-subtitle {
    font-size: 1.5rem;
    font-weight: 300;
    color: var(--teal-primary);
    margin-bottom: 1.5rem;
}

.hero-description {
    font-size: 1.125rem;
    line-height: 1.8;
    color: var(--text-secondary);
    margin-bottom: 2.5rem;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    margin-bottom: 3rem;
}

.btn {
    padding: 0.875rem 2rem;
    border-radius: 4px;
    font-weight: 600;
    font-size: 0.95rem;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transition: all 0.3s ease;
    letter-spacing: 0.3px;
}

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

.btn-primary:hover {
    background: var(--navy-medium);
    border-color: var(--navy-medium);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-secondary {
    background: transparent;
    color: var(--navy-dark);
    border: 2px solid var(--navy-dark);
}

.btn-secondary:hover {
    background: var(--navy-dark);
    color: white;
    transform: translateY(-2px);
}

.hero-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    padding-top: 2rem;
    border-top: 1px solid var(--border-color);
}

.stat-item {
    text-align: center;
}

.stat-number {
    font-family: 'Playfair Display', serif;
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--teal-primary);
    line-height: 1;
    margin-bottom: 0.5rem;
}

.stat-label {
    font-size: 0.875rem;
    color: var(--text-secondary);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Hero Image */
.hero-image {
    display: flex;
    justify-content: center;
    align-items: center;
}

.profile-placeholder {
    text-align: center;
    padding: 2rem;
    background: var(--teal-pale);
    border-radius: 12px;
    border: 2px dashed var(--teal-primary);
}

.placeholder-text {
    margin-top: 1rem;
    font-size: 0.875rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

.profile-image {
    width: 100%;
    max-width: 350px;
    height: auto;
    border-radius: 8px;
    box-shadow: var(--shadow-lg);
}

/* Sections */
section {
    padding: 6rem 0;
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-tag {
    display: inline-block;
    padding: 0.5rem 1.25rem;
    background: var(--teal-pale);
    color: var(--teal-primary);
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 1rem;
}

.section-title {
    font-family: 'Playfair Display', serif;
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--navy-dark);
}

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

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: start;
}

.about-text .lead {
    font-size: 1.25rem;
    font-weight: 400;
    color: var(--text-primary);
    margin-bottom: 1.5rem;
    line-height: 1.7;
}

.about-text p {
    font-size: 1rem;
    color: var(--text-secondary);
    line-height: 1.8;
}

.expertise-list {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.expertise-item {
    display: flex;
    gap: 1rem;
    padding: 1.5rem;
    background: var(--bg-light);
    border-radius: 8px;
    border-left: 4px solid var(--teal-primary);
    transition: all 0.3s ease;
}

.expertise-item:hover {
    box-shadow: var(--shadow-md);
    transform: translateX(8px);
}

.expertise-icon {
    font-size: 2rem;
    flex-shrink: 0;
}

.expertise-item h3 {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--navy-dark);
    margin-bottom: 0.25rem;
}

.expertise-item p {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

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

.project {
    background: var(--bg-white);
    border-radius: 8px;
    box-shadow: var(--shadow-sm);
    margin-bottom: 3rem;
    overflow: hidden;
    display: grid;
    grid-template-columns: 1fr 1fr;
    transition: all 0.3s ease;
}

.project:hover {
    box-shadow: var(--shadow-lg);
}

.project-reverse {
    grid-template-columns: 1fr 1fr;
}

.project-reverse .project-image {
    order: 2;
}

.project-reverse .project-content {
    order: 1;
}

.project-image {
    position: relative;
    background: var(--bg-light);
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 500px;
}

.project-image img {
    width: 100%;
    height: auto;
    max-height: 500px;
    object-fit: contain;
    display: block;
}

.placeholder-label {
    margin-top: 1rem;
    font-size: 0.875rem;
    color: var(--text-secondary);
    font-weight: 600;
    background: white;
    padding: 0.5rem 1rem;
    border-radius: 4px;
}

.project-content {
    padding: 3rem;
}

.project-header {
    margin-bottom: 1.5rem;
}

.project-number {
    font-family: 'Playfair Display', serif;
    font-size: 1rem;
    font-weight: 700;
    color: var(--teal-primary);
    margin-bottom: 0.5rem;
    display: block;
}

.project-title {
    font-family: 'Playfair Display', serif;
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--navy-dark);
    line-height: 1.3;
}

.project-description {
    font-size: 1rem;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 1.5rem;
}

.project-highlights {
    margin-bottom: 1.5rem;
}

.project-highlights h4 {
    font-size: 0.875rem;
    font-weight: 700;
    color: var(--navy-dark);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 0.75rem;
}

.project-highlights ul {
    list-style: none;
    padding-left: 0;
}

.project-highlights li {
    padding-left: 1.5rem;
    position: relative;
    margin-bottom: 0.5rem;
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.6;
}

.project-highlights li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: var(--teal-primary);
    font-weight: bold;
    font-size: 1.5rem;
}

.project-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 2rem;
}

.tech-badge {
    padding: 0.4rem 0.875rem;
    background: var(--teal-pale);
    color: var(--navy-dark);
    border-radius: 4px;
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.3px;
}

.project-links {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.project-link {
    padding: 0.75rem 1.5rem;
    border-radius: 4px;
    font-weight: 600;
    font-size: 0.9rem;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transition: all 0.3s ease;
}

.project-link.primary {
    background: var(--navy-dark);
    color: white;
}

.project-link.primary:hover {
    background: var(--navy-medium);
    transform: translateY(-2px);
}

.project-link.secondary {
    background: transparent;
    color: var(--navy-dark);
    border: 2px solid var(--border-color);
}

.project-link.secondary:hover {
    border-color: var(--navy-dark);
}

/* Upcoming Projects */
.project-upcoming {
    grid-template-columns: 1fr;
    padding: 3rem;
    text-align: center;
    background: var(--bg-lighter);
    border: 2px dashed var(--border-color);
}

.project-content-centered {
    max-width: 600px;
    margin: 0 auto;
}

/* Contact Section */
.contact {
    background: var(--bg-white);
}

.contact-content {
    max-width: 900px;
    margin: 0 auto;
    text-align: center;
}

.contact-title {
    font-family: 'Playfair Display', serif;
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--navy-dark);
    margin-bottom: 1rem;
}

.contact-description {
    font-size: 1.125rem;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 3rem;
}

.contact-methods {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.contact-card {
    padding: 2rem;
    background: var(--bg-light);
    border-radius: 8px;
    text-decoration: none;
    color: var(--text-primary);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
    transition: all 0.3s ease;
    border: 2px solid transparent;
}

.contact-card:hover {
    border-color: var(--teal-primary);
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.contact-card svg {
    color: var(--navy-dark);
}

.contact-card h3 {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--navy-dark);
    margin: 0;
}

.contact-card p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin: 0;
}

/* Footer */
.footer {
    background: var(--navy-dark);
    padding: 3rem 0;
}

.footer-content {
    text-align: center;
}

.footer-content p {
    color: var(--bg-lighter);
    font-size: 0.9rem;
    margin: 0.5rem 0;
}

.footer-note {
    color: var(--teal-light);
    font-weight: 600;
}

/* Responsive Design */
@media (max-width: 968px) {
    .hero-grid {
        grid-template-columns: 1fr;
        gap: 3rem;
    }

    .hero-image {
        order: -1;
    }

    .about-grid {
        grid-template-columns: 1fr;
        gap: 3rem;
    }

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

    .project-reverse .project-image {
        order: 1;
    }

    .project-reverse .project-content {
        order: 2;
    }

    .contact-methods {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }

    .hero {
        padding: 6rem 0 4rem;
    }

    .hero-title {
        font-size: 2.25rem;
    }

    .hero-stats {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

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

    .project-content {
        padding: 2rem;
    }
}