/* 
   ==========================================================================
   PÁGINA WEB PERSONAL - JOSÉ MIGUEL SALAVALDEZ MENDÉZ
   Tema Oscuro Elegante con Azul Eléctrico (Simple, Moderno y Fluido)
   ========================================================================== 
*/

/* Configuración básica y tipografía */
body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    color: #f1f5f9;
    background-color: #0b0f19;
    line-height: 1.6;
    margin: 0;
    padding: 0;
    overflow-x: hidden;
}

/* Contenedor centralizado */
.container {
    max-width: 800px;
    margin: 0 auto;
    padding: 20px;
}

/* ==========================================================================
   ANIMACIONES CSS (MICRO-MOVIMIENTO Y COHERENCIA VISUAL)
   ========================================================================== */

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(24px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }

    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes glowPulse {

    0%,
    100% {
        text-shadow: 0 0 8px rgba(0, 210, 255, 0.2), 0 0 15px rgba(0, 210, 255, 0.1);
    }

    50% {
        text-shadow: 0 0 15px rgba(0, 210, 255, 0.5), 0 0 25px rgba(0, 210, 255, 0.3);
        color: #5ce6ff;
    }
}

/* Clases base de animación para el contenido */
.animate-fade-in {
    opacity: 0;
    animation: fadeInUp 0.8s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.animate-slide-left {
    opacity: 0;
    animation: slideInLeft 0.8s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

/* Tiempos de retraso escalonados (staggered delay) */
.delay-100 {
    animation-delay: 0.1s;
}

.delay-200 {
    animation-delay: 0.2s;
}

.delay-300 {
    animation-delay: 0.3s;
}

.delay-400 {
    animation-delay: 0.4s;
}

.delay-500 {
    animation-delay: 0.5s;
}

.delay-600 {
    animation-delay: 0.6s;
}

.delay-700 {
    animation-delay: 0.7s;
}

/* ==========================================================================
   CABECERA Y NAVEGACIÓN
   ========================================================================== */
header {
    background-color: #111827;
    border-bottom: 2px solid #00d2ff;
    padding: 15px 0;
    position: sticky;
    top: 0;
    z-index: 100;
}

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

.logo {
    font-weight: bold;
    font-size: 1.25rem;
    color: #00d2ff;
    animation: glowPulse 3s infinite ease-in-out;
}

nav a {
    color: #94a3b8;
    text-decoration: none;
    margin-left: 20px;
    font-size: 0.95rem;
    font-weight: 500;
    transition: color 0.25s ease, transform 0.25s ease;
    display: inline-block;
}

nav a:hover {
    color: #00d2ff;
    transform: translateY(-2px);
}

/* ==========================================================================
   PERFIL Y PRESENTACIÓN
   ========================================================================== */
.profile-section {
    background-color: #171e30;
    border: 1px solid #2d3748;
    border-radius: 8px;
    padding: 30px;
    margin-top: 30px;
    margin-bottom: 30px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
}

.profile-container {
    display: flex;
    gap: 30px;
    align-items: center;
}

.profile-text {
    flex: 1;
}

.profile-image-wrapper {
    flex-shrink: 0;
    width: 220px;
    border-radius: 12px;
    overflow: hidden;
    border: 2px solid #00d2ff;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
    transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.profile-image-wrapper:hover {
    transform: scale(1.03) translateY(-4px);
    box-shadow: 0 8px 25px rgba(0, 210, 255, 0.3);
    border-color: #5ce6ff;
}

.profile-image {
    width: 100%;
    display: block;
    object-fit: cover;
}

@media (max-width: 768px) {
    .profile-container {
        flex-direction: column;
        text-align: center;
    }
    
    .profile-image-wrapper {
        width: 180px;
        margin-bottom: 20px;
    }
    
    .quick-links {
        justify-content: center;
    }
}

.profile-title {
    color: #ffffff;
    margin-top: 0;
    margin-bottom: 5px;
    font-size: 2.2rem;
    letter-spacing: -0.02em;
}

.profile-subtitle {
    color: #00d2ff;
    font-size: 1.15rem;
    font-weight: 600;
    margin-bottom: 20px;
}

.profile-details {
    list-style: none;
    padding: 0;
    margin: 20px 0 0 0;
    border-top: 1px solid #2d3748;
    padding-top: 20px;
}

.profile-details li {
    margin-bottom: 10px;
    color: #cbd5e1;
    transition: transform 0.2s ease;
}

.profile-details li:hover {
    transform: translateX(5px);
}

.profile-details strong {
    color: #00d2ff;
}

/* ==========================================================================
   SECCIONES Y TARJETAS
   ========================================================================== */
section {
    background-color: #171e30;
    border: 1px solid #2d3748;
    border-radius: 8px;
    padding: 30px;
    margin-bottom: 30px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
}

section h2 {
    color: #ffffff;
    border-bottom: 2px solid #00d2ff;
    padding-bottom: 8px;
    margin-top: 0;
    margin-bottom: 20px;
    font-size: 1.6rem;
}

/* Enlaces institucionales rápidos */
.quick-links {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 15px;
}

.link-tag {
    background-color: #1e293b;
    border: 1px solid #3b82f6;
    color: #38bdf8;
    padding: 6px 14px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 500;
    text-decoration: none;
    transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.link-tag:hover {
    background-color: #00d2ff;
    color: #0b0f19;
    border-color: #00d2ff;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 210, 255, 0.25);
}

/* Listado de Cursos */
.courses-list {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

@media (max-width: 600px) {
    .courses-list {
        grid-template-columns: 1fr;
    }
}

.course-card {
    background-color: #1e293b;
    border: 1px solid #2d3748;
    border-radius: 8px;
    padding: 20px;
    transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.course-card:hover {
    border-color: #00d2ff;
    transform: translateY(-4px);
    box-shadow: 0 6px 15px rgba(0, 210, 255, 0.1);
}

.course-code {
    font-size: 0.75rem;
    font-weight: bold;
    color: #00d2ff;
    text-transform: uppercase;
}

.course-title {
    color: #ffffff;
    margin: 5px 0 10px 0;
    font-size: 1.1rem;
}

.course-desc {
    font-size: 0.85rem;
    color: #94a3b8;
    margin: 0;
}

/* Sección de Profesor Especial: Ernesto Cuadros */
.professor-card {
    border-left: 4px solid #00d2ff;
    background-color: #1e293b;
    padding: 25px;
    border-radius: 0 8px 8px 0;
    margin-bottom: 20px;
    transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.professor-card:hover {
    box-shadow: 0 8px 25px rgba(0, 210, 255, 0.15);
    transform: translateY(-2px);
}

.prof-container {
    display: flex;
    gap: 25px;
    align-items: flex-start;
}

.prof-image-wrapper {
    flex-shrink: 0;
    width: 130px;
    height: 180px;
    border-radius: 8px;
    overflow: hidden;
    border: 2px solid #00d2ff;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
    transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.prof-image-wrapper:hover {
    transform: scale(1.04) translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 210, 255, 0.25);
    border-color: #5ce6ff;
}

.prof-card-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.prof-details-content {
    flex: 1;
}

.professor-name {
    color: #ffffff;
    margin-top: 0;
    margin-bottom: 5px;
    font-size: 1.25rem;
}

.professor-role {
    font-size: 0.85rem;
    color: #00d2ff;
    font-weight: bold;
    margin-bottom: 12px;
}

.professor-bio {
    font-size: 0.9rem;
    color: #cbd5e1;
    margin-bottom: 15px;
}

.prof-links {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    border-top: 1px solid #2d3748;
    padding-top: 12px;
}

.prof-link {
    font-size: 0.8rem;
    color: #00d2ff;
    text-decoration: none;
    transition: color 0.2s ease, transform 0.2s ease;
}

.prof-link:hover {
    text-decoration: underline;
    color: #5ce6ff;
}

@media (max-width: 600px) {
    .prof-container {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }
    
    .prof-image-wrapper {
        margin-bottom: 15px;
        width: 110px;
        height: 150px;
    }
    
    .prof-links {
        justify-content: center;
    }
}

/* Enlaces de Contacto Principal */
.contact-section {
    text-align: center;
}

.btn-linkedin {
    display: inline-block;
    background-color: #0077b5;
    color: #ffffff;
    padding: 12px 24px;
    text-decoration: none;
    border-radius: 6px;
    font-weight: bold;
    margin: 8px;
    font-size: 1rem;
    transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.btn-linkedin:hover {
    background-color: #005987;
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(0, 119, 181, 0.4);
}

.btn-email {
    display: inline-block;
    background-color: #1e293b;
    border: 1px solid #2d3748;
    color: #ffffff;
    padding: 12px 24px;
    text-decoration: none;
    border-radius: 6px;
    font-weight: bold;
    margin: 8px;
    font-size: 1rem;
    transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.btn-email:hover {
    background-color: #2d3748;
    border-color: #00d2ff;
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(0, 210, 255, 0.15);
}

/* Pie de Página */
footer {
    text-align: center;
    padding: 40px 20px;
    color: #64748b;
    font-size: 0.85rem;
    border-top: 1px solid #1e293b;
    margin-top: 20px;
}