/* Integración de la fuente Inter */
@font-face {
    font-family: 'Inter';
    src: url('fonts/Inter-Regular.otf') format('opentype');
    font-weight: 400;
    font-style: normal;
}

@font-face {
    font-family: 'Inter';
    src: url('fonts/Inter-Medium.otf') format('opentype');
    font-weight: 500;
    font-style: normal;
}

@font-face {
    font-family: 'Inter';
    src: url('fonts/Inter-Bold.otf') format('opentype');
    font-weight: 700;
    font-style: normal;
}

/* Estilos personalizados sobre Bootstrap 5 */
:root {
    --bs-font-sans-serif: 'Inter', system-ui, -apple-system, sans-serif;
    --background-color: #f9f9f9;
    --text-color: #333;
    --heading-color: #000;
    --nav-link-color: #666;
    --nav-link-hover-color: #000;
    --nav-link-hover-bg: #f0f0f0;
    --project-item-bg: #fff;
    --project-item-shadow: rgba(0,0,0,0.05);
    --project-item-hover-shadow: rgba(0,0,0,0.1);
    --footer-border-color: #eee;
}

[data-bs-theme="dark"] {
    --background-color: #121212;
    --text-color: #ccc;
    --heading-color: #fff;
    --nav-link-color: #aaa;
    --nav-link-hover-color: #fff;
    --nav-link-hover-bg: #333;
    --project-item-bg: #1e1e1e;
    --project-item-shadow: rgba(255,255,255,0.05);
    --project-item-hover-shadow: rgba(255,255,255,0.1);
    --footer-border-color: #333;
}

body {
    font-family: var(--bs-font-sans-serif);
    background-color: var(--background-color);
    color: var(--text-color);
    transition: background-color 0.3s ease, color 0.3s ease;
}

h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    color: var(--heading-color);
}

.container {
    max-width: 800px;
}

/* Navegación */
.nav-link {
    color: var(--nav-link-color);
    font-weight: 500;
    transition: all 0.3s ease;
}

.nav-link:hover, .nav-link.active {
    color: var(--nav-link-hover-color);
    background-color: var(--nav-link-hover-bg);
}

/* Sección de introducción */
.intro {
    font-size: 1.2rem;
    font-weight: 500;
}

/* Proyectos */
.project-item {
    background-color: var(--project-item-bg);
    border-radius: 8px;
    box-shadow: 0 2px 5px var(--project-item-shadow);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.project-item:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 8px var(--project-item-hover-shadow);
}

.project-item strong {
    display: block;
    margin-bottom: 5px;
    color: var(--heading-color);
}

/* Pie de página */
footer {
    border-top: 1px solid var(--footer-border-color);
}

.profile-picture {
    width: 150px;
    height: 150px;
    border-radius: 50%;
    object-fit: cover;
}

.contact-icons a {
    transition: color 0.3s ease;
}

.contact-icons a:hover {
    color: var(--heading-color) !important;
}

/* Responsive ajustes */
@media (max-width: 576px) {
    .container {
        padding-left: 20px;
        padding-right: 20px;
    }

    .about .d-flex {
        flex-direction: column;
    }

    .profile-picture {
        margin-bottom: 1rem;
    }
}