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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(#934949, #b49595e4);
    color: #fffefe;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

header {
    text-align: center;
    padding: 2rem 1rem;
}

header h1 {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
}

header p {
    font-size: 1.2rem;
    opacity: 0.9;
}

main {
    flex: 1;
    padding: 2rem 1rem;
    max-width: 900px;
    margin: auto;
}

section {
    margin-bottom: 2.5rem;
}

section h2 {
    border-bottom: 2px solid #ffaf40;
    display: inline-block;
    margin-bottom: 1rem;
    font-size: 1.8rem;
}

.about p {
    font-size: 1.1rem;
    line-height: 1.6;
    text-align: justify;
}

.projects {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
}

.project-card {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    padding: 1rem;
    transition: transform 0.3s;
}

.project-card:hover {
    transform: scale(1.05);
    background: rgba(255, 255, 255, 0.2);
}

.project-card h3 {
    margin-bottom: 0.5rem;
    color: #3b3313;
}

.project-card p {
    font-size: 0.95rem;
    line-height: 1.4;
}

footer {
    text-align: center;
    padding: 1rem;
    background: rgba(0, 0, 0, 0.2);
    font-size: 0.9rem;
}

header h1 {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
    white-space: nowrap;
    /* que no se parta el texto */
    overflow: hidden;
    /* oculta el texto fuera del área */
    border-right: 3px solid #ffdd59;
    /* el “cursor” */
    width: 0;
    /* empieza vacío */
    animation: typing 4s steps(30, end) forwards, blink 0.8s infinite;
}

/* Animación para escribir el texto */
@keyframes typing {
    from {
        width: 0
    }

    to {
        width: 100%
    }
}

/* Animación del cursor parpadeante */
@keyframes blink {

    0%,
    100% {
        border-color: transparent
    }

    50% {
        border-color: #ffdd59
    }
}


.robot {
    position: absolute;
    bottom: 60px;
    left: 150px;
    width: 400px;
    /* tamaño del robot */
    animation: caminar 10s linear infinite;
}

@keyframes caminar {
    from {
        left: 800px;
    }

    to {
        left: -100%;
    }
}


/* estilos de trageta mejorada */
/* ----- Estilos generales ----- */




ul.project-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    list-style: none;
    padding: 0;
    margin: 40px auto;
    max-width: 1000px;
}

/* ----- Tarjetas ----- */
ul.project-list li {
    transition: transform 0.3s ease, flex 0.3s ease;
}

ul.project-list li article {
    padding: 20px;
    border-radius: 15px;
    color: rgb(15, 15, 15);
    min-height: 220px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

/* ----- Colores diferentes para cada tarjeta ----- */
ul.project-list li:nth-child(1) article {
    background: #fecdcd;
    /* rojo suave */
}

ul.project-list li:nth-child(2) article {
    background: #c5e5ff;
    /* azul */
}

ul.project-list li:nth-child(3) article {
    background: #cdf9d6;
    /* verde */
}

ul.project-list li:nth-child(4) article {
    background: #fde6cd;
    /* naranja */
}

/* ----- Títulos de los proyectos ----- */
ul.project-list h3 {
    margin: 0 0 10px 0;
    font-size: 1.5rem;
}

/* ----- Descripción ----- */
ul.project-list p {
    font-size: 1.2rem;
    /* más grande */
    margin-bottom: 15px;
    line-height: 1.4;
}

/* ----- Botón "Ver proyecto" ----- */
ul.project-list a {
    text-decoration: none;
    background: rgba(255, 255, 255, 0.2);
    color: #121212;
    padding: 10px 15px;
    border-radius: 10px;
    text-align: center;
    font-weight: bold;
    font-size: 1.2rem;
    /* letra más grande */
    transition: background 0.3s ease;
}

ul.project-list a:hover {
    background: rgba(255, 255, 255, 0.4);
}

/* ----- Animación al hover/click ----- */
ul.project-list li[data-active="true"] {
    transform: scale(1.05);
}