/* RESET Y VARIABLES GLOBALES */
:root {
    /* Colores principales */
    --primary-color: #6366f1;
    --secondary-color: #10b981;
    --accent-color: #f59e0b;

    /* Colores neutros */
    --text-primary: #1f2937;
    --text-secondary: #6b7280;
    --text-light: #9ca3af;

    /* Colores de fondo */
    --bg-primary: #ffffff;
    --bg-secondary: #f9fafb;
    --bg-tertiary: #f3f4f6;

    /* Sombras y bordes */
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);

    /* Bordes */
    --border-radius: 0.5rem;
    --border-radius-lg: 1rem;
    --border-radius-xl: 1.5rem;

    /* Espaciado */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;

    /* Tipografía */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    --font-size-4xl: 2.25rem;

    /* Transiciones */
    --transition-fast: 0.15s ease-in-out;
    --transition-normal: 0.3s ease-in-out;
    --transition-slow: 0.5s ease-in-out;

    /* Sistema unificado de tarjetas */
    --card-hover-lift: translateY(-4px) scale(1.02);
    --card-hover-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.15), 0 10px 10px -5px rgba(0, 0, 0, 0.1);
    --card-hover-glow-primary: 0 0 20px rgba(99, 102, 241, 0.3);
    --card-hover-glow-secondary: 0 0 20px rgba(16, 185, 129, 0.3);
    --card-hover-glow-accent: 0 0 20px rgba(245, 158, 11, 0.3);
}

html.dark-theme {
    --bg-primary: #1f2937;
    --bg-secondary: #111827;
    --bg-tertiary: #374151;
    --text-primary: #f9fafb;
    --text-secondary: #d1d5db;
    --text-light: #9ca3af;
}

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

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-primary);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    transition: background-color var(--transition-normal), color var(--transition-normal);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

img {
    max-width: 100%;
    height: auto;
}

h1,
h2,
h3,
h4 {
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
}

h1 {
    font-size: var(--font-size-3xl);
    font-weight: 700;
}

h2 {
    font-size: var(--font-size-2xl);
}

p {
    margin-bottom: var(--spacing-md);
}

/* UTILIDADES */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--border-radius);
    text-decoration: none;
    font-weight: 500;
    font-size: var(--font-size-sm);
    transition: all var(--transition-normal);
    border: 2px solid transparent;
    cursor: pointer;
}

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

.btn-primary:hover {
    background-color: #5855eb;
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

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

.btn-secondary:hover {
    background-color: var(--primary-color);
    color: white;
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

/* --- SECCIONES PRINCIPALES --- */

/* HEADER */
.header {
    background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
    padding: var(--spacing-2xl) 0;
    border-bottom: 1px solid var(--bg-tertiary);
}

.profile {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: var(--spacing-lg);
}

.profile-image img {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    object-fit: cover;
    border: 4px solid var(--bg-secondary);
    box-shadow: var(--shadow-lg);
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.profile-image img:hover {
    transform: translateY(-2px) scale(1.03);
    box-shadow: var(--shadow-xl);
}

.profile-info h1 {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.profile-description {
    font-size: var(--font-size-base);
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto var(--spacing-lg);
}

.profile-actions {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
    justify-content: center;
    flex-wrap: wrap;
}

.profile-location,
.profile-contact {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--text-light);
    font-size: var(--font-size-sm);
    justify-content: center;
}

.profile-location svg,
.profile-contact svg {
    color: var(--accent-color);
}

/* SECCIÓN "ABOUT" */
.about-section {
    padding: var(--spacing-2xl) 0;
    background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-primary) 100%);
}

.about-header {
    text-align: center;
    margin-bottom: var(--spacing-2xl);
}

.about-header h2 {
    font-size: var(--font-size-3xl);
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-divider {
    width: 80px;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    margin: 0 auto;
    border-radius: 2px;
}

/* SISTEMA DE TARJETAS UNIFICADO */
.card-base {
    background: var(--bg-primary);
    padding: var(--spacing-xl);
    border-radius: var(--border-radius-xl);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--bg-tertiary);
    transition: transform var(--transition-normal), box-shadow var(--transition-normal), border-color var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.card-base:hover {
    transform: var(--card-hover-lift);
    box-shadow: var(--card-hover-shadow);
}

.card-primary:hover {
    border-color: var(--primary-color);
    box-shadow: var(--card-hover-shadow), var(--card-hover-glow-primary);
}

.card-secondary:hover {
    border-color: var(--secondary-color);
    box-shadow: var(--card-hover-shadow), var(--card-hover-glow-secondary);
}

.card-accent:hover {
    border-color: var(--accent-color);
    box-shadow: var(--card-hover-shadow), var(--card-hover-glow-accent);
}

.card-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.card-icon {
    color: var(--primary-color);
    transition: transform var(--transition-normal), color var(--transition-normal);
}

.card-base:hover .card-icon {
    transform: scale(1.1) rotate(4deg);
    color: var(--secondary-color);
}

/* COMPONENTES DE LA SECCIÓN "ABOUT" */
.summary-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-2xl);
}

.summary-icon {
    color: var(--primary-color);
    flex-shrink: 0;
}

.summary-content p {
    font-size: var(--font-size-lg);
    line-height: 1.7;
    color: var(--text-secondary);
    margin: 0;
}

.education-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xl);
}

.education-item {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-lg);
    padding: var(--spacing-lg);
    background: var(--bg-secondary);
    border-radius: var(--border-radius-lg);
    border: 1px solid var(--bg-tertiary);
    transition: all var(--transition-normal);
}

.education-item:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-color);
}

.education-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--primary-color);
    margin-top: var(--spacing-sm);
    flex-shrink: 0;
}

.education-institution {
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: var(--spacing-xs);
}

.education-location {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-sm);
}

.education-status {
    font-size: var(--font-size-sm);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--border-radius);
    font-weight: 500;
    background: #dcfce7;
    color: #166534;
}

.education-status.completed {
    background: #dcfce7;
    color: #166534;
}

.skills-container {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-2xl);
}

.skill-category h4 {
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
    border-bottom: 2px solid var(--primary-color);
    padding-bottom: var(--spacing-sm);
}

.skill-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

.skill-tag {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--border-radius);
    font-size: var(--font-size-sm);
    font-weight: 500;
    transition: all var(--transition-normal);
}

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

.soft-skills {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.soft-skill {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--bg-secondary);
    border-radius: var(--border-radius-lg);
    border: 1px solid var(--bg-tertiary);
    transition: all var(--transition-normal);
}

.soft-skill:hover {
    transform: translateX(3px) translateY(-2px);
    border-color: var(--secondary-color);
    background: linear-gradient(135deg, var(--bg-secondary), #ecfdf5);
}

.skill-icon-svg {
    color: var(--primary-color);
}

.certifications-card {
    margin-bottom: var(--spacing-2xl);
}

.certifications-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
}

.certification-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-lg);
    background: var(--bg-secondary);
    border-radius: var(--border-radius-lg);
    border: 1px solid var(--bg-tertiary);
    transition: all var(--transition-normal);
}

.certification-item:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
    border-color: var(--accent-color);
}

.cert-date {
    font-size: var(--font-size-sm);
    color: var(--accent-color);
    font-weight: 600;
}

.cert-status {
    font-size: var(--font-size-sm);
    color: var(--secondary-color);
    font-weight: 600;
}

.info-grid {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.info-item {
    display: flex;
    flex-direction: column;
    text-align: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md);
    background: var(--bg-secondary);
    border-radius: var(--border-radius-lg);
}

.info-label {
    font-weight: 600;
    color: var(--primary-color);
}

.info-value {
    color: var(--text-secondary);
}

/* SECCIÓN SOCIAL */
.social-section {
    padding: var(--spacing-2xl) 0;
    background-color: var(--bg-secondary);
}

.social-section h2 {
    text-align: center;
    margin-bottom: var(--spacing-2xl);
    color: var(--text-primary);
}

.social-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
    max-width: 400px;
    margin: 0 auto;
}

.social-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: var(--spacing-xl);
    text-decoration: none;
    color: var(--text-primary);
}

.social-icon {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-md);
    color: white;
    transition: transform var(--transition-normal);
}

.social-card:hover .social-icon {
    transform: scale(1.1);
}

.social-icon.github {
    background-color: #24292e;
}

.social-icon.linkedin {
    background-color: #0077b5;
}

.social-icon.whatsapp {
    background-color: #25d366;
}

.social-icon.email {
    background-color: var(--primary-color);
}

.social-card span {
    font-weight: 500;
    font-size: var(--font-size-lg);
}

/* SECCIÓN PROYECTOS */
.projects-section {
    padding: var(--spacing-2xl) 0;
}

.projects-section h2 {
    text-align: center;
    margin-bottom: var(--spacing-2xl);
}

.projects-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
}

.project-card {
    overflow: hidden;
}

.project-image {
    position: relative;
    overflow: hidden;
}

.project-card:hover .project-image img {
    transform: scale(1.05);
}

/* Si usas img */
.project-content {
    padding: var(--spacing-xl);
}

.project-tags {
    display: flex;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
    flex-wrap: wrap;
}

.tag {
    background-color: var(--bg-secondary);
    color: var(--text-secondary);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--border-radius);
    font-size: var(--font-size-xs);
    font-weight: 500;
    border: 1px solid var(--bg-tertiary);
}

.project-links {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.project-placeholder {
    width: 100%;
    height: 200px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.2rem;
    font-weight: bold;
}

.placeholder-primary {
    background: linear-gradient(135deg, var(--primary-color), #8b5cf6);
}

.placeholder-secondary {
    background: linear-gradient(135deg, var(--secondary-color), #34d399);
}

.placeholder-accent {
    background: linear-gradient(135deg, var(--accent-color), #fbbf24);
}

/* SECCIÓN CONTACTO */
.contact-section {
    padding: var(--spacing-2xl) 0;
    background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
}

.contact-header {
    text-align: center;
    margin-bottom: var(--spacing-2xl);
}

.contact-header h2 {
    font-size: var(--font-size-3xl);
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.contact-header p {
    max-width: 600px;
    margin: 0 auto;
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-2xl);
}

.contact-info {
    order: 2;
}

.contact-form-container {
    order: 1;
}

.contact-methods {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.contact-method {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-lg);
    background: var(--bg-secondary);
    border-radius: var(--border-radius-lg);
    border: 1px solid var(--bg-tertiary);
    transition: all var(--transition-normal);
}

.contact-method:hover {
    transform: translateX(3px) translateY(-2px);
    border-color: var(--secondary-color);
}

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

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

.form-group label {
    display: block;
    margin-bottom: var(--spacing-sm);
    font-weight: 600;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: var(--spacing-md);
    border: 2px solid var(--bg-tertiary);
    border-radius: var(--border-radius);
    font-size: 16px;
    /* Evita zoom en iOS */
    font-family: var(--font-family);
    background: var(--bg-primary);
    color: var(--text-primary);
    transition: all var(--transition-normal);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.checkbox-group {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-sm);
}

.checkbox-group input[type="checkbox"] {
    width: auto;
    margin-top: 2px;
}

.checkbox-group label {
    font-size: var(--font-size-sm);
    line-height: 1.5;
    margin: 0;
    cursor: pointer;
}

.submit-btn {
    width: 100%;
    padding: var(--spacing-lg);
    font-size: var(--font-size-base);
    font-weight: 600;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border: none;
}

.submit-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.form-message {
    margin-top: var(--spacing-md);
    padding: var(--spacing-md);
    border-radius: var(--border-radius);
    text-align: center;
    display: none;
}

.form-message.success {
    background: #dcfce7;
    color: #166534;
    border: 1px solid #bbf7d0;
    display: block;
}

.form-message.error {
    background: #fef2f2;
    color: #dc2626;
    border: 1px solid #fecaca;
    display: block;
}

/* FOOTER */
.footer {
    background-color: var(--text-primary);
    color: white;
    padding: var(--spacing-xl) 0;
}

.footer-content {
    display: flex;
    flex-direction: column;
    text-align: center;
    gap: var(--spacing-lg);
}

.footer-info p {
    margin-bottom: var(--spacing-sm);
    color: var(--text-light);
}

.footer-contact p {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    color: var(--text-light);
}

.footer-contact svg {
    color: var(--accent-color);
}

/* BOTÓN DE TEMA */
.theme-toggle {
    position: fixed;
    top: 15px;
    right: 15px;
    background: var(--primary-color);
    color: #fff;
    border: none;
    border-radius: 50%;
    width: 45px;
    height: 45px;
    font-size: 1.2rem;
    cursor: pointer;
    box-shadow: var(--shadow-lg);
    z-index: 999;
    transition: all var(--transition-normal);
    display: flex;
    align-items: center;
    justify-content: center;
}

.theme-toggle:hover {
    transform: scale(1.1);
}

html.dark-theme .theme-toggle {
    background: var(--accent-color);
    color: var(--text-primary);
}

/* --- MEDIA QUERIES (Mobile-First) --- */

/* Tablets (768px y más) */
@media (min-width: 768px) {
    h1 {
        font-size: var(--font-size-4xl);
    }

    h2 {
        font-size: var(--font-size-3xl);
    }

    .profile {
        flex-direction: row;
        text-align: left;
    }

    .profile-actions,
    .profile-location,
    .profile-contact {
        justify-content: flex-start;
    }

    .summary-card {
        flex-direction: row;
        text-align: left;
    }

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

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

    .info-item {
        flex-direction: row;
        text-align: left;
        gap: var(--spacing-md);
    }

    .social-grid {
        grid-template-columns: 1fr 1fr;
        max-width: 600px;
    }

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

    .project-links {
        flex-direction: row;
    }

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

    .contact-info {
        order: 1;
    }

    .contact-form-container {
        order: 2;
    }

    .footer-content {
        flex-direction: row;
        justify-content: space-between;
        text-align: left;
    }

    .footer-contact p {
        justify-content: flex-start;
    }
}

/* Desktops (1200px y más) */
@media (min-width: 1200px) {
    .container {
        padding: 0 var(--spacing-2xl);
    }

    .social-grid {
        grid-template-columns: repeat(4, 1fr);
        max-width: 1200px;
    }

    .projects-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}