/* --- Global Styles & Variables --- */
@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;600;700&display=swap');

:root {
    --primary-color: #0d47a1; /* Azul profesional y confiable */
    --secondary-color: #1976d2;
    --light-gray-color: #f4f4f4;
    --dark-gray-color: #333;
    --white-color: #ffffff;
    --text-color: #333;
    --header-font: 'Poppins', sans-serif;
    --body-font: 'Poppins', sans-serif;
    --container-width: 1100px;
    --base-spacing: 20px;
}

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

body {
    font-family: var(--body-font);
    line-height: 1.7;
    background-color: var(--white-color);
    color: var(--text-color);
}

a {
    color: var(--primary-color);
    text-decoration: none;
}

a:hover {
    color: var(--secondary-color);
    text-decoration: underline;
}

h1, h2, h3, h4 {
    font-family: var(--header-font);
    font-weight: 600;
    margin-bottom: 15px;
}

.container {
    max-width: var(--container-width);
    margin: auto;
    overflow: hidden;
    padding: 0 var(--base-spacing);
}

.section {
    padding: calc(var(--base-spacing) * 3) 0;
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: calc(var(--base-spacing) * 2);
    color: var(--primary-color);
}

.btn {
    display: inline-block;
    background: var(--primary-color);
    color: var(--white-color);
    padding: 12px 25px;
    border-radius: 5px;
    border: none;
    cursor: pointer;
    font-size: 1rem;
    transition: background-color 0.3s ease;
}

.btn:hover {
    background: var(--secondary-color);
    text-decoration: none;
}

/* --- Header & Navigation --- */
.main-header {
    background: var(--white-color);
    padding: var(--base-spacing) 0;
    border-bottom: 1px solid #e0e0e0;
    position: sticky;
    top: 0;
    z-index: 1000;
}

.main-header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo a {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
    text-decoration: none;
}

.main-nav ul {
    display: flex;
    list-style: none;
}

.main-nav ul li {
    margin-left: var(--base-spacing);
}

.main-nav ul a {
    font-weight: 600;
    padding: 5px 10px;
}

/* --- Hero Section --- */
.hero {
    padding: calc(var(--base-spacing) * 4) 0;
    text-align: center;
}

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

.hero-content .profile-pic {
    width: 150px;
    height: 150px;
    border-radius: 50%;
    object-fit: cover;
    margin-bottom: var(--base-spacing);
    border: 5px solid var(--primary-color);
}

.hero-content h1 {
    font-size: 2.2rem;
    margin-bottom: 10px;
}

.hero-content .slogan {
    font-size: 1.5rem;
    font-weight: 300;
    color: var(--dark-gray-color);
    margin-bottom: 0;
}

/* --- About Section --- */
#about {
    background-color: var(--light-gray-color);
}

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

/* --- Impact Section --- */
.impact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--base-spacing);
    text-align: center;
}

.impact-item {
    background: var(--light-gray-color);
    padding: var(--base-spacing);
    border-radius: 8px;
    border-left: 5px solid var(--primary-color);
}

.impact-item .number {
    font-size: 3rem;
    font-weight: 700;
    color: var(--primary-color);
}

.impact-item .text {
    font-size: 1rem;
    font-weight: 300;
}

/* --- Portfolio & Blog Sections --- */
#portfolio, #blog {
    background-color: var(--light-gray-color);
}

#blog {
    background-color: var(--white-color);
}

.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--base-spacing);
}

.card {
    background: var(--white-color);
    border: 1px solid #e0e0e0;
    border-radius: 8px;
    padding: var(--base-spacing);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0,0,0,0.08);
}

.card h3 {
    color: var(--secondary-color);
}

.card .technologies {
    font-style: italic;
    color: #555;
    margin-top: 10px;
}

.card .meta {
    font-size: 0.9rem;
    color: #777;
}

/* --- Contact Section --- */
.contact-container {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: calc(var(--base-spacing) * 3);
    align-items: flex-start;
}

.contact-form .form-group {
    margin-bottom: var(--base-spacing);
}

.contact-form label {
    display: block;
    margin-bottom: 5px;
}

.contact-form input, .contact-form textarea {
    width: 100%;
    padding: 12px;
    border: 1px solid #ccc;
    border-radius: 5px;
}

.contact-info {
    background: var(--light-gray-color);
    padding: var(--base-spacing);
    border-radius: 8px;
}

.contact-info h3 {
    color: var(--primary-color);
}

.contact-info p {
    margin-bottom: 10px;
}

.contact-info i {
    margin-right: 10px;
    color: var(--primary-color);
}

/* --- Footer --- */
.main-footer {
    background: var(--primary-color);
    color: var(--white-color);
    text-align: center;
    padding: var(--base-spacing) 0;
    margin-top: calc(var(--base-spacing) * 3);
}

/* --- Trayectoria Page --- */
.trayectoria-content {
    max-width: 900px;
    margin: 0 auto;
}

.trayectoria-content h2 {
    border-bottom: 2px solid var(--primary-color);
    padding-bottom: 10px;
    margin-top: calc(var(--base-spacing) * 2);
}

/* --- Responsive Design --- */
@media (max-width: 768px) {
    .section-title {
        font-size: 2rem;
    }

    .main-header .container {
        flex-direction: column;
    }

    .main-nav ul {
        margin-top: 15px;
        flex-wrap: wrap;
        justify-content: center;
    }

    .main-nav ul li {
        margin: 5px 10px;
    }

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