:root {
    --navy: #1B2A4A;
    --navy-dark: #0F1B32;
    --teal: #0D9488;
    --teal-dark: #0B7E73;
    --teal-light: #CCFBF1;
    --white: #FFFFFF;
    --off-white: #F8FAFB;
    --gray-light: #E2E8F0;
    --gray-medium: #64748B;
    --text-primary: #1E293B;
    --text-secondary: #475569;
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: 72px;
}

body {
    font-family: 'Inter', sans-serif;
    font-size: 1.1rem;
    line-height: 1.7;
    color: var(--text-primary);
    background-color: var(--white);
}

img {
    max-width: 100%;
    height: auto;
}

a {
    color: var(--teal);
}

a:hover,
a:focus {
    color: var(--teal-dark);
}

.content-wrap {
    max-width: 800px;
    margin: 0 auto;
    padding: 0 1.25rem;
}

#main-nav {
    position: sticky;
    top: 0;
    z-index: 100;
    background-color: var(--navy);
    padding: 0.75rem 0;
}

.nav-container {
    max-width: 800px;
    margin: 0 auto;
    padding: 0 1.25rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-brand {
    color: var(--white);
    font-weight: 700;
    font-size: 1.15rem;
    text-decoration: none;
    transition: color 0.2s ease;
}

.nav-brand:hover,
.nav-brand:focus {
    color: var(--teal-light);
}

.nav-toggle {
    display: none;
    background: none;
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: 4px;
    padding: 0.4rem 0.5rem;
    cursor: pointer;
    flex-direction: column;
    gap: 4px;
}

.nav-toggle-bar {
    display: block;
    width: 22px;
    height: 2px;
    background-color: rgba(255, 255, 255, 0.85);
    border-radius: 1px;
}

.nav-links {
    list-style: none;
    display: flex;
    gap: 0;
    align-items: center;
}

.nav-links li a {
    color: rgba(255, 255, 255, 0.85);
    font-weight: 400;
    font-size: 0.95rem;
    padding: 0.5rem 0.85rem;
    text-decoration: none;
    transition: color 0.2s ease;
}

.nav-links li a:hover,
.nav-links li a:focus {
    color: var(--teal-light);
}

section {
    padding: 60px 0;
}

.section-alt {
    background-color: var(--off-white);
}

h1 {
    font-family: 'Inter', sans-serif;
    font-size: 2.25rem;
    font-weight: 700;
    color: var(--navy);
    margin-bottom: 0.25rem;
    line-height: 1.2;
}

h2 {
    font-family: 'Inter', sans-serif;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--teal);
    margin-bottom: 1.5rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid var(--teal-light);
}

h3 {
    font-family: 'Inter', sans-serif;
    font-size: 1.15rem;
    font-weight: 600;
    color: var(--navy);
    margin-bottom: 0.5rem;
}

p {
    margin-bottom: 1rem;
}

.hero-section {
    background-color: var(--navy);
    color: var(--white);
    padding: 80px 0 60px;
}

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

.hero-section h1 {
    color: var(--white);
    font-size: 2.5rem;
    margin-top: 1.25rem;
}

.headshot {
    width: 220px;
    height: 220px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid #FFD700;
}

.tagline {
    font-size: 1.1rem;
    color: rgba(255, 255, 255, 0.85);
    margin-bottom: 0.5rem;
    font-weight: 400;
}

.value-prop {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--teal-light);
    margin-bottom: 1.5rem;
}

.btn-cta {
    display: inline-block;
    background-color: var(--teal);
    color: var(--white);
    font-weight: 600;
    font-size: 1rem;
    padding: 0.6rem 1.75rem;
    border-radius: 6px;
    text-decoration: none;
    transition: background-color 0.2s ease;
}

.btn-cta:hover,
.btn-cta:focus {
    background-color: var(--teal-dark);
    color: var(--white);
}

.skill-group {
    margin-bottom: 1.5rem;
}

.skill-group:last-child {
    margin-bottom: 0;
}

.skill-pills {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.pill {
    display: inline-block;
    font-size: 0.9rem;
    font-weight: 500;
    padding: 0.35rem 0.85rem;
    border-radius: 50px;
    line-height: 1.4;
}

.skill-technical {
    background-color: var(--teal);
    color: var(--white);
}

.skill-professional {
    background-color: var(--gray-light);
    color: var(--text-primary);
}

.skill-tools {
    background-color: var(--navy);
    color: var(--white);
}

.experience-item {
    margin-bottom: 2rem;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid var(--gray-light);
}

.experience-item:last-child {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
}

.exp-meta {
    color: var(--gray-medium);
    font-size: 0.95rem;
    margin-bottom: 0.75rem;
}

.experience-item ul {
    padding-left: 1.25rem;
    margin-bottom: 0.5rem;
}

.experience-item li {
    margin-bottom: 0.4rem;
    color: var(--text-secondary);
}

.tools-used {
    font-size: 0.9rem;
    color: var(--teal);
    font-weight: 600;
    margin-bottom: 0;
}

.project-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}

.project-card {
    background-color: var(--white);
    border: 1px solid var(--gray-light);
    border-radius: 8px;
    padding: 1.5rem;
    transition: box-shadow 0.2s ease;
}

.project-card:hover {
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}

.project-card p {
    color: var(--text-secondary);
}

.project-outcome {
    font-weight: 600;
    color: var(--navy) !important;
}

.education-item p {
    margin-bottom: 0.25rem;
    color: var(--text-secondary);
}

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

.contact-links {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 1rem;
    margin-top: 1.5rem;
}

.btn-contact {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background-color: var(--teal);
    color: var(--white);
    font-weight: 600;
    font-size: 1rem;
    padding: 0.6rem 1.25rem;
    border-radius: 50px;
    text-decoration: none;
    transition: background-color 0.2s ease;
}

.btn-contact:hover,
.btn-contact:focus {
    background-color: var(--teal-dark);
    color: var(--white);
}

.btn-contact svg {
    flex-shrink: 0;
}

footer {
    background-color: var(--navy-dark);
    color: rgba(255, 255, 255, 0.6);
    padding: 1.5rem 0;
    font-size: 0.9rem;
}

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

footer p {
    margin: 0;
}

@media (max-width: 767px) {
    .nav-toggle {
        display: flex;
    }

    .nav-links {
        display: none;
        flex-direction: column;
        width: 100%;
        position: absolute;
        top: 100%;
        left: 0;
        background-color: var(--navy);
        padding: 0.5rem 0 1rem;
    }

    .nav-links.open {
        display: flex;
    }

    .nav-links li a {
        padding: 0.6rem 1.25rem;
        display: block;
    }

    .nav-container {
        flex-wrap: wrap;
        position: relative;
    }

    h1 {
        font-size: 1.75rem;
    }

    .hero-section h1 {
        font-size: 2rem;
    }

    .headshot {
        width: 160px;
        height: 160px;
    }

    section {
        padding: 40px 0;
    }

    .hero-section {
        padding: 60px 0 40px;
    }

    .value-prop {
        font-size: 1.1rem;
    }

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

    .contact-links {
        flex-direction: column;
        align-items: center;
    }
}