* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

html {
    scroll-behavior: smooth;
}

:root {
    --primary-color: #007bff;
    --secondary-color: #6c757d;
    --success-color: #28a745;
    --danger-color: #dc3545;
    --warning-color: #ffc107;
    --info-color: #17a2b8;
    --light-color: #f8f9fa;
    --dark-color: #343a40;
    --bg-dark: #1a1a2e;
    --bg-secondary: #16213e;
    --text-light: #ffffff;
    --text-secondary: #b8b8b8;
    --accent-purple: #7c9ce8;
}

body {
    background-color: var(--bg-dark);
    color: var(--text-light);
    line-height: 1.6;
    overflow-x: hidden;
}

/* ==================== PARTICLES ==================== */
.particles {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    opacity: 0.3;
    background: radial-gradient(circle at 50% 50%, rgba(124, 156, 228, 0.15), transparent);
    animation: particles 20s infinite linear;
}

@keyframes particles {
    0% {
        transform: translateY(0);
    }
    100% {
        transform: translateY(-100%);
    }
}

/* ==================== NAVBAR ==================== */
.navbar {
    position: fixed;
    top: 0;
    background: linear-gradient(90deg, rgba(22, 33, 62, 0.95), rgba(124, 156, 228, 0.85));
    width: 100%;
    z-index: 100;
    padding: 1rem 0;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
    backdrop-filter: blur(10px);
}

.menu {
    display: flex;
    justify-content: center;
    list-style: none;
    gap: 2rem;
    flex-wrap: wrap;
    padding: 0 1rem;
}

.menu-link {
    color: var(--text-light);
    text-decoration: none;
    font-weight: 500;
    position: relative;
    padding: 0.5rem 0.75rem;
    transition: color 0.3s ease;
}

.menu-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-purple));
    transform: translateX(-50%);
    transition: width 0.3s ease;
}

.menu-link:hover {
    color: var(--accent-purple);
}

.menu-link:hover::after {
    width: 100%;
}

/* ==================== HOME SECTION ==================== */
.head {
    min-height: 100vh;
    display: flex;
    justify-content: center;
    flex-direction: column;
    align-items: center;
    padding-top: 6rem;
    text-align: center;
}

.profile-pic {
    width: 280px;
    height: 280px;
    border-radius: 50%;
    border: 4px solid var(--accent-purple);
    margin: 2rem 0;
    box-shadow: 0 0 40px rgba(124, 156, 228, 0.6), 0 0 80px rgba(79, 70, 229, 0.3);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    object-fit: cover;
}

.profile-pic:hover {
    transform: scale(1.05);
    box-shadow: 0 0 60px rgba(124, 156, 228, 0.8), 0 0 120px rgba(79, 70, 229, 0.5);
}

h1 {
    font-size: 3.5rem;
    font-weight: bold;
    color: var(--accent-purple);
    margin: 1rem 0;
    text-shadow: 0 2px 10px rgba(124, 156, 228, 0.3);
}

.head-sub-title {
    font-size: 1.5rem;
    color: var(--text-secondary);
    margin: 1rem 0;
    letter-spacing: 1px;
}

/* ==================== ABOUT SECTION ==================== */
#about {
    padding: 6rem 2rem;
}

.about-title {
    font-size: 2.8rem;
    color: var(--success-color);
    text-align: center;
    margin-bottom: 1rem;
    text-shadow: 0 2px 10px rgba(40, 167, 69, 0.3);
}

.about-sub-title {
    font-size: 1.3rem;
    color: var(--text-secondary);
    text-align: center;
    margin-bottom: 2rem;
}

.about-box {
    padding: 2.5rem;
    max-width: 900px;
    text-align: center;
    margin: 0 auto;
    border-radius: 16px;
    border: 1px solid rgba(124, 156, 228, 0.3);
    backdrop-filter: blur(10px);
    box-shadow: 0 8px 32px rgba(79, 70, 229, 0.2);
    background: linear-gradient(135deg, rgba(22, 33, 62, 0.8), rgba(26, 26, 46, 0.9));
}

.about-sub-paragraph {
    font-size: 1.1rem;
    margin-bottom: 2rem;
    line-height: 1.8;
    color: var(--text-light);
}

.about-sub-paragraph-skills {
    margin-top: 2rem;
    padding-top: 2rem;
    border-top: 1px solid rgba(124, 156, 228, 0.3);
}

.about-sub-paragraph-skills h3 {
    font-size: 1.5rem;
    color: var(--accent-purple);
    margin-bottom: 1.5rem;
}

.skills-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: 1rem;
    list-style: none;
}

.skill-link {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    background: linear-gradient(135deg, var(--primary-color), var(--info-color));
    color: white;
    text-decoration: none;
    border-radius: 8px;
    transition: all 0.3s ease;
    font-weight: 500;
    box-shadow: 0 4px 15px rgba(79, 70, 229, 0.2);
}

.skill-link:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(79, 70, 229, 0.4);
    background: linear-gradient(135deg, var(--info-color), var(--primary-color));
}

/* ==================== PROJECTS SECTION ==================== */
.projects {
    padding: 6rem 2rem;
    background: linear-gradient(135deg, rgba(22, 33, 62, 0.5), rgba(26, 26, 46, 0.5));
}

.projects-title {
    font-size: 2.8rem;
    color: var(--accent-purple);
    text-align: center;
    margin-bottom: 3rem;
    text-shadow: 0 2px 10px rgba(124, 156, 228, 0.3);
}

.projects-box {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.projects-card {
    background: linear-gradient(135deg, rgba(124, 156, 228, 0.1), rgba(26, 26, 46, 0.8));
    border-radius: 12px;
    border: 1px solid rgba(124, 156, 228, 0.3);
    overflow: hidden;
    transition: all 0.3s ease;
    cursor: pointer;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
    display: flex;
    flex-direction: column;
}

.projects-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 40px rgba(79, 70, 229, 0.4);
    border-color: var(--accent-purple);
    background: linear-gradient(135deg, rgba(124, 156, 228, 0.2), rgba(26, 26, 46, 0.9));
}

.projects-img {
    width: 100%;
    height: 220px;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.projects-card:hover .projects-img {
    transform: scale(1.08);
}

.box-text-projects {
    padding: 1.5rem;
    text-align: center;
    color: var(--text-light);
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.paragraph-projects {
    line-height: 1.6;
    color: var(--text-secondary);
    margin-bottom: 1rem;
    font-size: 0.95rem;
}

.info-projects {
    color: var(--accent-purple);
    margin-bottom: 1rem;
    font-size: 1.3rem;
}

.project-btn {
    display: inline-block;
    padding: 0.7rem 1.5rem;
    background: linear-gradient(135deg, var(--primary-color), var(--info-color));
    color: white;
    text-decoration: none;
    border-radius: 6px;
    transition: all 0.3s ease;
    font-weight: 500;
    margin-top: auto;
    box-shadow: 0 4px 15px rgba(79, 70, 229, 0.2);
}

.project-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(79, 70, 229, 0.4);
    background: linear-gradient(135deg, var(--info-color), var(--primary-color));
}

/* ==================== ARTICLES SECTION ==================== */
.articles {
    padding: 6rem 2rem;
}

.article-title {
    font-size: 2.8rem;
    color: var(--warning-color);
    text-align: center;
    margin-bottom: 1rem;
    text-shadow: 0 2px 10px rgba(255, 193, 7, 0.3);
}

.article-subtitle {
    font-size: 1.2rem;
    color: var(--text-secondary);
    text-align: center;
    margin-bottom: 3rem;
}

.articles-box {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.projects-card-article {
    background: linear-gradient(135deg, rgba(255, 193, 7, 0.1), rgba(26, 26, 46, 0.8));
    border-radius: 12px;
    border: 1px solid rgba(255, 193, 7, 0.3);
    overflow: hidden;
    transition: all 0.3s ease;
    cursor: pointer;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
    display: flex;
    flex-direction: column;
}

.projects-card-article:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 40px rgba(255, 193, 7, 0.4);
    border-color: var(--warning-color);
}

/* ==================== CARTA SECTION ==================== */
.carta {
    padding: 6rem 2rem;
    background: linear-gradient(135deg, rgba(22, 33, 62, 0.5), rgba(26, 26, 46, 0.5));
}

.carta-title {
    font-size: 2.8rem;
    color: var(--info-color);
    text-align: center;
    margin-bottom: 2rem;
    text-shadow: 0 2px 10px rgba(23, 162, 184, 0.3);
}

.carta-box {
    max-width: 800px;
    margin: 0 auto;
    padding: 2.5rem;
    background: linear-gradient(135deg, rgba(23, 162, 184, 0.1), rgba(26, 26, 46, 0.8));
    border-radius: 12px;
    border: 1px solid rgba(23, 162, 184, 0.3);
    box-shadow: 0 8px 32px rgba(23, 162, 184, 0.15);
    line-height: 1.8;
}

.carta-box p {
    margin-bottom: 1.2rem;
    color: var(--text-light);
    text-align: justify;
}

.carta-box strong {
    color: var(--accent-purple);
}

/* ==================== CONTACT SECTION ==================== */
.contact {
    padding: 6rem 2rem;
}

.contact-title {
    font-size: 2.8rem;
    color: var(--success-color);
    text-align: center;
    margin-bottom: 0.5rem;
    text-shadow: 0 2px 10px rgba(40, 167, 69, 0.3);
}

.contact-subtitle {
    font-size: 1.1rem;
    color: var(--text-secondary);
    text-align: center;
    margin-bottom: 2rem;
}

.form-contact {
    max-width: 600px;
    margin: 0 auto;
    padding: 2.5rem;
    background: linear-gradient(135deg, rgba(124, 156, 228, 0.1), rgba(26, 26, 46, 0.8));
    border-radius: 12px;
    border: 1px solid rgba(124, 156, 228, 0.3);
    box-shadow: 0 8px 32px rgba(79, 70, 229, 0.2);
    backdrop-filter: blur(10px);
}

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

.campo-form {
    width: 100%;
    padding: 1rem;
    background: rgba(52, 58, 64, 0.6);
    border-radius: 8px;
    border: 1px solid rgba(124, 156, 228, 0.3);
    color: var(--text-light);
    outline: none;
    transition: all 0.3s ease;
    font-size: 1rem;
}

.campo-form::placeholder {
    color: var(--text-secondary);
}

.campo-form:focus {
    border-color: var(--accent-purple);
    background: rgba(52, 58, 64, 0.8);
    box-shadow: 0 0 15px rgba(124, 156, 228, 0.3);
}

.text-form {
    resize: vertical;
    min-height: 120px;
}

.button-form {
    width: 100%;
    padding: 1rem 2rem;
    background: linear-gradient(135deg, var(--primary-color), var(--info-color));
    color: white;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-size: 1.1rem;
    font-weight: 600;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(79, 70, 229, 0.3);
}

.button-form:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(79, 70, 229, 0.5);
    background: linear-gradient(135deg, var(--info-color), var(--primary-color));
}

.button-form:active {
    transform: translateY(-1px);
}

/* ==================== FOOTER ==================== */
.footer {
    background: linear-gradient(135deg, rgba(22, 33, 62, 0.9), rgba(26, 26, 46, 0.95));
    padding: 2rem;
    text-align: center;
    border-top: 1px solid rgba(124, 156, 228, 0.3);
    margin-top: 2rem;
}

.footer p {
    color: var(--text-secondary);
    margin-bottom: 1rem;
}

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

.social-link {
    color: var(--accent-purple);
    text-decoration: none;
    transition: all 0.3s ease;
    font-weight: 500;
    padding: 0.5rem 1rem;
    border: 1px solid rgba(124, 156, 228, 0.3);
    border-radius: 6px;
}

.social-link:hover {
    color: white;
    background: var(--accent-purple);
    border-color: var(--accent-purple);
    box-shadow: 0 4px 15px rgba(124, 156, 228, 0.3);
}

/* ==================== RESPONSIVE ==================== */
@media (max-width: 768px) {
    .menu {
        gap: 1rem;
        font-size: 0.9rem;
    }

    .menu-link {
        padding: 0.5rem 0.5rem;
    }

    h1 {
        font-size: 2.2rem;
    }

    .head-sub-title {
        font-size: 1.1rem;
    }

    .profile-pic {
        width: 200px;
        height: 200px;
    }

    .projects-title,
    .about-title,
    .article-title,
    .carta-title,
    .contact-title {
        font-size: 2rem;
    }

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

    .about-box,
    .carta-box,
    .form-contact {
        padding: 1.5rem;
    }

    .navbar {
        padding: 0.5rem 0;
    }

    #about,
    .projects,
    .articles,
    .carta,
    .contact {
        padding: 3rem 1rem;
    }
}

@media (max-width: 480px) {
    .menu {
        gap: 0.5rem;
        font-size: 0.75rem;
    }

    h1 {
        font-size: 1.8rem;
    }

    .profile-pic {
        width: 150px;
        height: 150px;
    }

    .projects-title,
    .about-title,
    .article-title,
    .carta-title,
    .contact-title {
        font-size: 1.5rem;
    }

    .form-contact,
    .carta-box,
    .about-box {
        padding: 1rem;
    }

    .campo-form {
        padding: 0.75rem;
        font-size: 0.9rem;
    }

    .button-form {
        padding: 0.75rem 1rem;
        font-size: 1rem;
    }
}