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

#aboutMe,
#projects,
#contact {
    scroll-margin-top: 80px; /* ajusta según tu header */
}

    section {
    scroll-margin-top: 50px; /* espacio desde arriba al hacer scroll */
}


html {
    scroll-behavior: smooth;
}

:root{
    --primary: #ffffffbd;
    --nav: #274655a4;
    --titles: #168ac4a4;
    --background:#031a258a;
    --background2: #0000008a;
    --border:  #7ca1c0bd;
    --hover-glow: rgba(2, 129, 129, 0.4);
    --span: #00e1ffda;
    --buttom: #0a2336dc;

    
    --squash: 0.65;
    --stretch: 1.12;
    --speed: 1.7s;
}

body {

    background: 
        linear-gradient(rgba(24, 24, 24, 0.445), rgba(15, 15, 15, 0.6)), 
        url("./assets/thumb-1920-1053832.jpg");
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    background-attachment: fixed;

    color: var(--primary);
    font-family: 'Trebuchet MS', Arial, sans-serif;
}

header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    background-color: var(--nav);
    padding: 1rem 2rem;
    border-bottom: solid 2px var(--border);
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;      
    background: #0005;  
    backdrop-filter: blur(8px); 
   
}

a{
    text-decoration: none;
    color: var(--primary);
}

li {
    list-style: none;
}

.navegation {
    display: flex;
    gap: 20px;
}

.navegation li a:hover {
    color: var(--titles);
    transition: 0.3s;
}

h3 {
    font-size: 2rem;
    color: var(--titles);
    text-align: center;
    margin-bottom: 2rem;
}

.firstContainer a,
h4 {
    margin: 5rem auto 0 auto;
    display: flex;
    justify-content: center;
}

.firstContainer {
    display: grid;
    grid-template-columns: 1fr 1fr;
    max-width: 1000px;
    margin: 5rem auto 0 auto;
    border-radius: 2rem;
    padding: 2rem;    
    gap: 5rem;
    border: solid var(--border) 2px;

    background: linear-gradient(315deg, var(--background) 50%, var(--background2) 50%);
    background-size: 200% 200%;
    background-position: bottom right;

    transition: 
        background-position 0.5s ease,
        color 0.5s ease,
        box-shadow 0.5s ease;

    box-shadow: 0 0 0 rgba(0,0,0,0);
}

.firstContainer:hover {
    background-position: top left;
    color: white;
    box-shadow: 0 0 30px 10px var(--hover-glow);
}

.firstContainer img {
    width: 70%;
}

#projects {
    max-width: 1000px;
    margin: 5rem auto;
    padding: 2rem;
    border-radius: 2rem;
    border: solid 2px var(--border);

    background: linear-gradient(315deg, var(--background) 50%, var(--background2) 50%);
    background-size: 200% 200%;
    background-position: bottom right;

    transition: background-position 0.5s ease, box-shadow 0.5s ease;
    position: relative;
    overflow: visible;
}

#projects:hover {
    background-position: top left;
    box-shadow: 0 0 30px 10px var(--hover-glow);
}

#projects ul {
    margin-top: 2rem;
}

#projects li {
    margin: 1rem 0 0.3rem 0;
    font-size: 2rem;
    font-weight: bold;
    color: var(--titles);
}

#projects p {
    margin-bottom: 0.5rem;
    font-size: 20px;
}

#projects button {
    position: relative;
    overflow: hidden;
}

#projects button::after {
    content: "";
    position: absolute;
    top: -120%;
    left: -120%;
    width: 250%;
    height: 250%;
    background: linear-gradient(
        135deg,
        transparent 90px,
        rgb(132, 163, 209) 50%,
        transparent 10%
    );

    animation: cleanShine 2.5s linear infinite;
    pointer-events: none;
}

@keyframes cleanShine {
    0% {
        transform: translate(-100%, -100%);
    }
    100% {
        transform: translate(100%, 100%);
    }
}

#projects button {
    width: 7rem;
    height: 3rem;
    padding: 0.5rem 1rem;
    margin-bottom: 1.5rem;
    border-radius: 0.5rem;
    border: solid 2px var(--border);
    background-color: var(--buttom);
    cursor: pointer;
    color: var(--primary);
    transition: 0.3s;

    transform-origin: 50% 90%;
    animation: squash var(--speed) cubic-bezier(.2,.9,.2,1) infinite;
}


.secondContainer ul li {
    display: flex;
    align-items: center;
    gap: 10px;        
    font-weight: 600;
    margin-top: 20px;
}


.secondContainer ul li img {
    width: 30px;
    height: 30px;
    object-fit: contain;
    vertical-align: middle;
}




@keyframes squash {
    0% {
        transform: scale(1, 1);
    }
    25% {
        transform: scale(1.2, 0.8); 
    }
    50% {
        transform: scale(0.9, 1.1); 
    }
    75% {
        transform: scale(1.05, 0.95);
    }
    100% {
        transform: scale(1, 1);
    }
}


#projects button:hover {
    background-color: var(--titles);
      width: 110px;
    height: 90px;
    background: #0000007e;
    border-radius: 20px;
    animation: squash 1.2s ease-in-out ;
}

#projects i {
    display: flex;
    justify-content: center;
    font-size: 3rem;
    margin-top: 1rem;
    color: var(--primary);
    transition: transform .3s;
}

#projects i:hover {
    color: var(--titles);
    transform: translateY(-8px);
}

.form {
    max-width: 1000px;
    height: 500px;
    margin: 5rem auto;
    padding: 2rem;
    border-radius: 2rem;
    border: solid 2px var(--border);
    background: linear-gradient(315deg, var(--background) 50%, var(--background2) 50%);
    background-size: 200% 200%;
    background-position: bottom right;
    transition: background-position 0.5s ease, box-shadow 0.5s ease;
    position: relative;
    overflow: hidden;
}

.form:hover {
    background-position: top left;
    box-shadow: 0 0 30px 10px var(--hover-glow);
}

form {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    position: relative;
    z-index: 1;
}

form input,
form textarea {
    padding: 0.7rem;
    border-radius: 0.5rem;
    border: solid 2px var(--border);
    background-color: rgba(255,255,255,0.05);
    color: var(--primary);
}

form button {
    padding: 0.7rem;
    background-color: transparent;
    border: solid 2px var(--border);
    border-radius: 0.5rem;
    color: var(--primary);
    cursor: pointer;
    transition: 0.3s;
}

form button:hover {
    background-color: var(--titles);
}

.icon img {
    border-radius: 50%;
    width: 200px;
    height: 200px;
    margin: 5rem auto 0 auto;
    display: flex;
    justify-content: center;
    animation: float 3s ease-in-out infinite;
}

@keyframes float {
    0% { transform: translateY(0); }
    50% { transform: translateY(-15px); }
    100% { transform: translateY(0); }
}

@keyframes snake {
    0% { transform: translateX(0) translateY(0); }
    50% { transform: translate(15px) translate(-5px); }
}

.miku {
    display: flex;
    justify-content: center;
    margin: -5.1rem;
    height: 400px;
    animation: swing 3s ease-in-out infinite alternate;
}

@keyframes swing {
    0% { transform: rotate(-5deg); }
    50% { transform: rotate(5deg); }
    100% { transform: rotate(-5deg); }
}

.miku-projects {
    position: absolute;
    right: -280px;
    bottom: 0;
    width: 600px;
    z-index: 5;
    pointer-events: none;
}

span {
    color: var(--span);
}

.back{
    color: rgb(219, 0, 0);
}

.java img{
   width: 700px;
   
    margin: -6rem auto 0 auto;
    display: flex;
    justify-content: center;
}


.petsContainer{
    display: flex;
    justify-content:center;   
    
    align-items: center;              
    gap: 50px;                
    
    
}

.petsBody{
    padding: 0;
}

@keyframes saltito {
    0% {
        transform: translateY(0);
    }
    30% {
        transform: translateY(-15px);
    }
    60% {
        transform: translateY(0);
    }
    100% {
        transform: translateY(0);
    }
}

.pets img {
    width: 200px;
    height: 200px;
    border-radius: 10px;
    object-fit: cover;
    border: 2px solid var(--border);

 

    animation: saltito 1.2s ease-in-out infinite;
}


.pets:nth-of-type(1) img {
    animation-delay: 0s;
}

.pets:nth-of-type(2) img {
    animation-delay: 0.2s;
}

.pets:nth-of-type(3) img {
    animation-delay: 0.4s;
}

.pets:nth-of-type(4) img {
    animation-delay: 0.6s;
}

.pets:nth-of-type(5) img {
    animation-delay: 0.8s;
}

footer{
    display: flex;
    justify-content: center;
    background-color: var(--buttom);
   

}

footer p{
    margin: 0.5rem;
}

fieldset.petsContainer {
    border: 2px solid var(--border);
    padding: 40px;
    border-radius:1rem;
}

fieldset.petsContainer legend {
    font-size: 1.5rem;
    font-weight: bold;
    padding: 0 10px;
}


.petsContent {
    display: flex;         
    gap: 40px;              
    justify-content: center;
    flex-wrap: nowrap;       
    overflow-x: auto;       
    padding: 10px;
}


.petsContent img {
    width: 200px;            
    height: 200px;
    border-radius: 10px;     
    box-shadow: 0 2px 6px rgba(0,0,0,0.3); 
    margin-top: 2rem;
}