/* =========================
   VARIABLES
========================= */
:root {
    --bg: #0f1117;
    --bg-secondary: #1a1d25;
    --accent: #00ffd0;
    --text: #e6e6e6;
    --text-secondary: #9ca3af;
    --border: #2a2f3a;
}

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

body {
    font-family: 'JetBrains', monospace;
    background: radial-gradient(circle at top, #1a1d25, #0f1117);
    color: var(--text);
    line-height: 1.6;
}

/* =========================
   HEADER
========================= */
header {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    padding: 20px;
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    background: rgba(15,17,23,0.8);
    backdrop-filter: blur(10px);
}

header h2 {
    color: var(--accent);
}

nav {
    width: 100%;
    margin-top: 10px;
    display: flex;
    justify-content: space-around;
}

nav a {
    text-decoration: none;
    color: var(--text-secondary);
    transition: 0.3s;
}

nav a:hover {
    color: var(--accent);
}

/* =========================
   HERO
========================= */
.hero {
    padding: 60px 20px;
}

.hero h1 {
    font-size: 2rem;
}

.hero .hand {
    display: inline-block;
    animation: wave 1.5s infinite;
}

@keyframes wave {
    0%, 100% { transform: rotate(0); }
    50% { transform: rotate(20deg); }
}

.hero p {
    margin: 20px 0;
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.hero a {
    display: inline-block;
    padding: 10px 20px;
    background: var(--accent);
    color: black;
    text-decoration: none;
    border-radius: 6px;
    transition: 0.3s;
}

.hero a:hover {
    transform: scale(1.05);
}

/* =========================
   ABOUT
========================= */
.about-me {
    display: flex;
    flex-direction: column;
    padding: 60px 20px;
    gap: 30px;
    text-align: center;
}

.about-me__img img {
    width: 200px;
    border-radius: 50%;
    border: 2px solid var(--accent);
}

.highlight {
    color: var(--accent);
}

/* =========================
   LABORATORIO
========================= */

#proyectos > h2 {
    text-align: center;
}

#laboratorio {
    padding: 60px 20px;
    display: grid;
    grid-template-columns: 1fr;
    gap: 20px;
}

#laboratorio h2 {
    margin-bottom: 10px;
}

.lab-card {
    background: rgba(255,255,255,0.03);
    backdrop-filter: blur(10px);
    padding: 20px;
    border-radius: 12px;
    border: 1px solid var(--border);
    transition: 0.3s;
}

.lab-card:hover {
    transform: translateY(-5px);
    border-color: var(--accent);
}

.lab-card h3 {
    margin-bottom: 10px;
}

.lab-card p {
    color: var(--text-secondary);
}

.lab-card a {
    display: inline-block;
    margin-top: 10px;
    color: var(--accent);
    text-decoration: none;
}

/* =========================
   CONTACTO
========================= */
#contacto {
    padding: 60px 20px;
}

#contacto a {
    color: var(--accent);
    text-decoration: none;
}

/* =========================
   FOOTER
========================= */
footer {
    text-align: center;
    padding: 20px;
    border-top: 1px solid var(--border);
}

footer a {
    margin-left: 10px;
    color: var(--text-secondary);
    transition: 0.3s;
}

footer a:hover {
    color: var(--accent);
}

/* =========================
   TABLET
========================= */
@media (min-width: 768px) {

    nav {
        width: auto;
        margin-top: 0;
    }

    nav a {
        margin-left: 20px;
    }

    .hero {
        padding: 80px 40px;
    }

    .hero h1 {
        font-size: 2.5rem;
    }

    .about-me {
        flex-direction: row;
        text-align: left;
        align-items: center;
    }

    .about-me__img img {
        width: 250px;
    }

    #laboratorio {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* =========================
   DESKTOP
========================= */
@media (min-width: 1024px) {

    header {
        padding: 20px 60px;
    }

    .hero {
        padding: 100px 60px;
    }

    .hero h1 {
        font-size: 3rem;
    }

    .about-me {
        padding: 80px 60px;
    }

    #laboratorio {
        grid-template-columns: repeat(3, 1fr);
    }

    #contacto {
        padding: 80px 60px;
    }
}