/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Primary - Navy */
    --navy-dark: #1e3a8a;
    --navy-medium: #2563eb;

    /* Accent - Construction Orange (match SafetyNet) */
    --orange-primary: #f97316;
    --orange-hover: #ea580c;

    /* Neutrals */
    --gray-900: #111827; /* Body text */
    --gray-600: #4b5563; /* Secondary text */
    --gray-100: #f3f4f6; /* Light backgrounds */
    --white: #ffffff;

    /* Legacy variable mappings for compatibility */
    --primary-color: var(--navy-dark);
    --primary-dark: var(--navy-dark);
    --text-dark: var(--gray-900);
    --text-light: var(--gray-600);
    --bg-light: var(--gray-100);
    --bg-white: var(--white);
    --border-color: #e5e7eb;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    background-color: var(--bg-white);
}

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

/* Navigation */
.navbar {
    background-color: var(--white);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 1000;
    backdrop-filter: blur(10px);
    background-color: rgba(255, 255, 255, 0.95);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
}

.nav-brand {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
}

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

.nav-menu a {
    text-decoration: none;
    color: var(--text-dark);
    font-weight: 500;
    transition: color 0.3s ease;
}

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

/* Hero Section */
.hero {
    background: linear-gradient(135deg, var(--navy-dark) 0%, var(--navy-medium) 100%);
    color: white;
    padding: 8rem 0 6rem;
    text-align: center;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    letter-spacing: -0.02em;
}

.hero-subtitle {
    font-size: 1.5rem;
    margin-bottom: 2.5rem;
    opacity: 0.95;
    font-weight: 400;
}

.hero-cta {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.875rem 2rem;
    border-radius: 0.5rem;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    border: 2px solid transparent;
}

.btn-primary {
    background-color: var(--orange-primary);
    color: var(--white);
}

.btn-primary:hover {
    background-color: var(--orange-hover);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-secondary {
    background-color: transparent;
    color: var(--bg-white);
    border-color: var(--bg-white);
}

.btn-secondary:hover {
    background-color: var(--bg-white);
    color: var(--primary-color);
}

.safetynet .btn-primary {
    background-color: var(--orange-primary);
    color: var(--white);
}

.safetynet .btn-primary:hover {
    background-color: var(--orange-hover);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

/* Sections */
section {
    padding: 5rem 0;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 2rem;
    text-align: center;
    color: var(--primary-color);
}

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

.about-wrapper {
    display: flex;
    gap: 3rem;
    align-items: flex-start;
    max-width: 1000px;
    margin: 0 auto;
}

.about-headshot {
    flex-shrink: 0;
}

.headshot-image {
    width: 250px;
    height: 250px;
    border-radius: 50%;
    object-fit: cover;
    border: 4px solid var(--navy-dark);
    box-shadow: var(--shadow-lg);
}

.about-content {
    flex: 1;
    text-align: left;
}

.about-content p {
    font-size: 1.125rem;
    color: var(--text-light);
    margin-bottom: 1.5rem;
    line-height: 1.8;
}

/* SafetyNet Dispatch Section */
.safetynet {
    background-color: var(--bg-light);
}

.safetynet-content {
    max-width: 700px;
    margin: 0 auto;
    text-align: center;
}

.safetynet-description {
    font-size: 1.125rem;
    color: var(--text-light);
    margin-bottom: 2rem;
    line-height: 1.8;
}

.external-icon {
    margin-left: 0.25rem;
}

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

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.project-card {
    background-color: var(--white);
    border: 1px solid var(--border-color);
    border-radius: 0.75rem;
    padding: 2rem;
    text-align: center;
    transition: all 0.3s ease;
    box-shadow: var(--shadow-sm);
}

.project-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--orange-primary);
}

.project-card.placeholder {
    opacity: 0.7;
}

.project-link {
    text-decoration: none;
    color: inherit;
}

.project-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
    filter: grayscale(0%);
}

.project-card h3,
.project-title {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--navy-dark);
    font-weight: 700;
}

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

.project-tags {
    display: flex;
    gap: 0.5rem;
    justify-content: center;
    flex-wrap: wrap;
    margin-top: 1rem;
}

.tag {
    background-color: var(--bg-light);
    color: var(--primary-color);
    padding: 0.375rem 0.75rem;
    border-radius: 1rem;
    font-size: 0.875rem;
    font-weight: 500;
    border: 1px solid var(--border-color);
}

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

.contact-content {
    max-width: 600px;
    margin: 0 auto;
    text-align: center;
}

.contact-intro {
    font-size: 1.125rem;
    color: var(--text-light);
    margin-bottom: 2rem;
}

.contact-links {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    align-items: center;
}

.contact-link {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem 1.5rem;
    background-color: var(--bg-white);
    border-radius: 0.5rem;
    text-decoration: none;
    color: var(--text-dark);
    font-weight: 500;
    transition: all 0.3s ease;
    border: 1px solid var(--border-color);
    min-width: 280px;
}

.contact-link:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    border-color: var(--orange-primary);
    color: var(--navy-dark);
}

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

/* Footer */
.footer {
    background-color: var(--text-dark);
    color: white;
    padding: 2rem 0;
    text-align: center;
}

.footer p {
    opacity: 0.8;
}

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

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

    .hero-subtitle {
        font-size: 1.25rem;
    }

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

    .about-wrapper {
        flex-direction: column;
        align-items: center;
        gap: 2rem;
    }

    .headshot-image {
        width: 200px;
        height: 200px;
    }

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

    .about-content p,
    .safetynet-description,
    .contact-intro {
        font-size: 1rem;
    }

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

    .hero-cta {
        flex-direction: column;
        align-items: center;
    }

    .btn {
        width: 100%;
        max-width: 300px;
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 1rem;
    }

    .navbar .container {
        padding: 1rem;
    }

    .nav-menu {
        font-size: 0.875rem;
        gap: 0.75rem;
    }

    .hero {
        padding: 5rem 0 4rem;
    }

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

    .contact-link {
        min-width: auto;
        width: 100%;
    }
}