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

body {
    font-family: system-ui, -apple-system, sans-serif;
    background: linear-gradient(135deg, #04212c, #090213);
    color: #fff;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 20px 15px;
    min-height: 100vh;
}

/* ==========================================
   ESTRUCTURA GENERAL
   ========================================== */
header, main {
    width: 100%;
    max-width: 700px; /* Tamaño ideal para tipo Linktree / Portafolio */
}

/* ==========================================
   HEADER Y LOGO
   ========================================== */
header.header {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: 20px 0 30px 0;
}

.lang-selector {
    display: flex;
    justify-content: flex-end;
    align-items: center;
    width: 100%;
    gap: 8px;
    margin-bottom: 10px;
}

.lang-btn {
    background: none;
    border: none;
    color: #888;
    font-weight: 700;
    font-size: 0.9rem;
    cursor: pointer;
    transition: color 0.2s ease;
}

.lang-btn:hover {
    color: #00f0ff;
}

.lang-btn.active {
    color: #00f0ff;
    text-shadow: 0 0 8px rgba(0, 240, 255, 0.6);
}

.lang-divider {
    color: #444;
    font-size: 0.8rem;
}

img.logo {
    width: 180px;
    height: 180px;
    object-fit: cover;
    border-radius: 50%;
    margin-bottom: 15px;
    border: 2px solid #00f0ff;
    box-shadow: 0 0 15px rgba(0, 240, 255, 0.3);
}

h1 {
    font-size: 2.2rem;
    margin-bottom: 10px;
    background: linear-gradient(135deg, #00f0ff, #7000ff);
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.etiquetas {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    justify-content: center;
    margin-bottom: 15px;
}

.tag {
    background: rgba(112, 0, 255, 0.2);
    color: #00f0ff;
    border: 1px solid rgba(0, 240, 255, 0.3);
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
}

.tag:hover {
    background: #00f0ff;
    color: #2c0072;
    cursor: pointer;
    transition: all 0.2s ease;
    box-shadow: 0 4px 15px rgba(0, 240, 255, 0.3);
}

p.intro {
    color: #a0a0a0;
    font-size: 0.95rem;
    line-height: 1.5;
    max-width: 500px;
}

/* ==========================================
   SECCIÓN PROYECTO / COLABORACIÓN
   ========================================== */
.proyecto {
    background: #12141d;
    border: 1px solid rgba(0, 240, 255, 0.2);
    border-radius: 12px;
    padding: 24px;
    margin-bottom: 30px;
}

.proyecto h3 {
    color: #7000ff;
    font-size: 0.8rem;
    letter-spacing: 1px;
    margin-bottom: 5px;
}

.proyecto h2 {
    font-size: 1.5rem;
    margin-bottom: 10px;
    color: #fff;
}

.descripcion {
    color: #b0b0b0;
    font-size: 0.95rem;
    margin-bottom: 20px;
}

.link-amigo {
    color: #00f0ff;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.2s ease;
}

.link-amigo:hover {
    color: #fff;
    text-shadow: 0 0 8px #00f0ff;
    border-bottom-color: #00f0ff;
}

.creditos {
    background: rgba(0, 0, 0, 0.3);
    padding: 15px;
    border-radius: 8px;
    border-left: 3px solid #00f0ff;
}

.creditos h3 {
    color: #00f0ff;
    font-size: 0.85rem;
    margin-bottom: 8px;
}

.creditos ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.creditos li {
    font-size: 0.9rem;
    color: #e0e0e0;
    padding-left: 15px;
    position: relative;
}

.creditos li::before {
    content: "▹";
    position: absolute;
    left: 0;
    color: #00f0ff;
}

/* ==========================================
   PORTAFOLIO, REDES Y CONTACTO
   ========================================== */
.portfolio {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 15px;
    text-align: center;
}

.portfolio h2 {
    font-size: 1.1rem;
    color: #ffffff;
    margin-top: 15px;
    letter-spacing: 0.5px;
}

.links {
    width: 100%;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.links a {
    display: block;
    width: 100%;
    background: #161922;
    color: #fff;
    text-decoration: none;
    padding: 14px;
    border-radius: 8px;
    font-weight: 600;
    border: 1px solid rgba(255, 255, 255, 0.05);
    transition: all 0.2s ease;
}

.links a:hover {
    background: rgba(0, 240, 255, 0.1);
    border-color: #00f0ff;
    color: #00f0ff;
    box-shadow: 0 4px 15px rgba(0, 240, 255, 0.3);
    transform: translateY(-2px);
}

.portfolio p {
    color: #888;
    font-size: 0.9rem;
}

.btn-copiar {
    background: rgba(0, 240, 255, 0.08);
    border: 1px solid #00f0ff;
    color: #00f0ff;
    font-weight: 600;
    font-size: 1rem;
    padding: 10px 20px;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.btn-copiar:hover {
    background: #00f0ff;
    box-shadow: inset 0 0 5px rgba(0, 240, 255, 0.5), 0 4px 15px rgba(0, 240, 255, 0.3);
    color: #000;
}

/* ==========================================
   FOOTER
   ========================================== */
footer {
    margin-top: 40px;
    padding: 20px;
    text-align: center;
    color: #555;
    font-size: 0.8rem;
}