/* ========== VARIABLES GLOBALES ========== */
:root {
    --color-primario: #6366f1;
    --color-secundario: #8b5cf6;
    --color-acento: #ec4899;
    --color-fondo: #ffffff;
    --color-fondo-oscuro: #0f172a;
    --color-texto: #1e293b;
    --color-texto-claro: #64748b;
    --color-texto-oscuro: #94a3b8;
    
    --gradient-primario: linear-gradient(135deg, var(--color-primario), var(--color-secundario));
    --sombra-suave: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --sombra-media: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --radio: 12px;
    --transicion: all 0.3s ease;
}

/* ========== RESET Y BASE ========== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
    background-color: var(--color-fondo);
    color: var(--color-texto);
    line-height: 1.6;
    overflow-x: hidden;
}

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

/* ========== NAVEGACIÓN ========== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    z-index: 1000;
    padding: 1rem 0;
    box-shadow: var(--sombra-suave);
}

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

.logo {
    font-size: 1.5rem;
    font-weight: 800;
    background: var(--gradient-primario);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    text-decoration: none;
}

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

.nav-menu a {
    text-decoration: none;
    color: var(--color-texto);
    font-weight: 500;
    transition: var(--transicion);
    position: relative;
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-primario);
    transition: width 0.3s;
}

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

.hamburger {
    display: none;
    flex-direction: column;
    background: none;
    border: none;
    cursor: pointer;
    gap: 5px;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background: var(--color-texto);
    border-radius: 3px;
    transition: 0.3s;
}

/* ========== HERO SECTION ========== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 6rem 2rem 4rem;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.05'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 800px;
}

.badge {
    display: inline-block;
    background: rgba(255, 255, 255, 0.2);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 50px;
    font-size: 0.9rem;
    margin-bottom: 1.5rem;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.hero h1 {
    font-size: 3.5rem;
    color: white;
    margin-bottom: 1rem;
    font-weight: 800;
}

.highlight {
    background: linear-gradient(135deg, #fbbf24, #f59e0b);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-subtitle {
    font-size: 1.5rem;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 1rem;
    font-weight: 300;
}

.hero-description {
    font-size: 1.1rem;
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 2rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.875rem 2rem;
    border-radius: var(--radio);
    text-decoration: none;
    font-weight: 600;
    transition: var(--transicion);
    border: none;
    cursor: pointer;
    font-size: 1rem;
}

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

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
}

.btn-secondary {
    background: transparent;
    color: white;
    border: 2px solid rgba(255, 255, 255, 0.5);
}

.btn-secondary:hover {
    background: white;
    color: var(--color-primario);
    border-color: white;
}

.btn-small {
    padding: 0.5rem 1rem;
    font-size: 0.9rem;
}

.btn-outline {
    background: transparent;
    border: 2px solid var(--color-primario);
    color: var(--color-primario);
}

.btn-outline:hover {
    background: var(--color-primario);
    color: white;
}

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

.social-icon {
    width: 45px;
    height: 45px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    text-decoration: none;
    font-size: 1.2rem;
    transition: var(--transicion);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.social-icon:hover {
    background: white;
    color: var(--color-primario);
    transform: translateY(-3px);
}

/* ========== SECCIONES GENERALES ========== */
.section {
    padding: 5rem 0;
}

.section-dark {
    background: var(--color-fondo-oscuro);
    color: white;
}

.section-title {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 1rem;
    position: relative;
    display: inline-block;
    left: 50%;
    transform: translateX(-50%);
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: var(--gradient-primario);
    border-radius: 2px;
}

.section-subtitle {
    text-align: center;
    color: var(--color-texto-claro);
    margin-bottom: 3rem;
    font-size: 1.1rem;
}

.section-dark .section-subtitle {
    color: var(--color-texto-oscuro);
}

/* ========== SOBRE MÍ ========== */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: start;
}

.about-text p {
    margin-bottom: 1rem;
    color: var(--color-texto-claro);
    font-size: 1.1rem;
}

.stats {
    display: flex;
    gap: 2rem;
    margin-top: 2rem;
    padding-top: 2rem;
    border-top: 2px solid #e2e8f0;
}

.stat-item {
    text-align: center;
}

.stat-number {
    display: block;
    font-size: 2rem;
    font-weight: 800;
    color: var(--color-primario);
}

.stat-label {
    font-size: 0.9rem;
    color: var(--color-texto-claro);
}

.skills h3 {
    margin-bottom: 1.5rem;
    font-size: 1.3rem;
}

.skill-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.skill-tag {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: #e0e7ff;
    color: var(--color-primario);
    padding: 0.5rem 1rem;
    border-radius: 50px;
    font-weight: 600;
    font-size: 0.9rem;
    transition: var(--transicion);
}

.skill-tag:hover {
    transform: translateY(-2px);
    box-shadow: var(--sombra-suave);
}

.skill-tag i {
    font-size: 1.1rem;
}

/* ========== PROYECTOS ========== */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.project-card {
    background: white;
    border-radius: var(--radio);
    overflow: hidden;
    box-shadow: var(--sombra-suave);
    transition: var(--transicion);
    border: 1px solid #e2e8f0;
}

.section-dark .project-card {
    background: #1e293b;
    border-color: #334155;
}

.project-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--sombra-media);
}

.project-coming {
    opacity: 0.7;
}

.project-image {
    height: 200px;
    background: var(--gradient-primario);
    display: flex;
    align-items: center;
    justify-content: center;
}

.project-placeholder {
    font-size: 4rem;
    color: white;
    opacity: 0.8;
}

.project-content {
    padding: 1.5rem;
}

.project-content h3 {
    font-size: 1.3rem;
    margin-bottom: 0.75rem;
    color: var(--color-texto);
}

.section-dark .project-content h3 {
    color: white;
}

.project-content p {
    color: var(--color-texto-claro);
    margin-bottom: 1rem;
    line-height: 1.6;
}

.section-dark .project-content p {
    color: var(--color-texto-oscuro);
}

.project-tech {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
    margin-bottom: 1.5rem;
}

.project-tech span {
    background: #e0e7ff;
    color: var(--color-primario);
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
}

.section-dark .project-tech span {
    background: #334155;
    color: #94a3b8;
}

.project-links {
    display: flex;
    gap: 0.75rem;
}

.coming-soon {
    color: var(--color-texto-claro);
    font-style: italic;
}

/* ========== CONTACTO ========== */
.contact-content {
    max-width: 600px;
    margin: 0 auto;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1.5rem;
    background: white;
    border-radius: var(--radio);
    box-shadow: var(--sombra-suave);
    transition: var(--transicion);
}

.contact-item:hover {
    transform: translateX(5px);
}

.contact-item i {
    width: 50px;
    height: 50px;
    background: var(--gradient-primario);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    flex-shrink: 0;
}

.contact-item h4 {
    margin-bottom: 0.25rem;
    color: var(--color-texto);
}

.contact-item a {
    color: var(--color-primario);
    text-decoration: none;
    font-weight: 500;
}

.contact-item a:hover {
    text-decoration: underline;
}

.contact-item span {
    color: var(--color-texto-claro);
}

/* ========== FOOTER ========== */
.footer {
    background: var(--color-fondo-oscuro);
    color: var(--color-texto-oscuro);
    padding: 2rem 0;
    text-align: center;
}

.footer-tech {
    margin-top: 0.5rem;
    font-size: 0.9rem;
    color: #64748b;
}

/* ========== RESPONSIVE ========== */
@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background: white;
        width: 100%;
        text-align: center;
        transition: 0.3s;
        padding: 2rem 0;
        box-shadow: var(--sombra-media);
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .hero h1 {
        font-size: 2.5rem;
    }
    
    .hero-subtitle {
        font-size: 1.2rem;
    }
    
    .about-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .stats {
        justify-content: center;
    }
    
    .projects-grid {
        grid-template-columns: 1fr;
    }
    
    .section-title {
        font-size: 2rem;
    }
}