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

body 
{
    font-family: 'Bai Jamjuree', sans-serif;
    line-height: 1.6;
    background: #fff;
    color: #333;
    transition: background 0.3s, color 0.3s;
}

.masthead 
{
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: #fff;
    padding: 15px 30px;
    position: sticky;
    top: 0;
    z-index: 999;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
}

.masthead .logo 
{
    font-size: 1.5em;
    font-weight: bold;
    text-decoration: none;
    color: #333;
    position: relative;
}

.masthead .logo::after 
{
    content: "";
    position: absolute;
    width: 0;
    height: 2px;
    bottom: -3px;
    left: 50%;
    background-color: #333;
    transition: width 0.3s ease;
    transform: translateX(-50%);
}

.masthead .logo:hover::after 
{
    width: 100%;
}

.masthead__menu a 
{
    color: #333;
    margin-left: 25px;
    text-decoration: none;
    font-weight: bold;
    position: relative;
    transition: color 0.3s;
}

.masthead__menu a::after 
{
    content: "";
    position: absolute;
    width: 0;
    height: 2px;
    bottom: -3px;
    left: 50%;
    background-color: #333;
    transform: translateX(-50%);
    transition: all 0.3s ease;
}

.masthead__menu a:hover::after 
{
    width: 100%;
}

.masthead__menu a:hover 
{
    color: #000;
}

.container 
{
    display: flex;
    max-width: 1200px;
    margin: 40px auto;
    padding: 0 20px;
    gap: 30px;
}

.sidebar 
{
    flex: 0 0 250px;
    background: #f5f5f5;
    padding: 25px;
    border-radius: 12px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.05);
    position: sticky;
    top: 20px;
    height: fit-content;
    transition: transform 0.3s ease;
}

.sidebar:hover 
{
    transform: translateY(-2px);
}

.sidebar img 
{
    width: 100%;
    border-radius: 50%;
    margin-bottom: 15px;
    transition: transform 0.3s;
}

.sidebar img:hover 
{
    transform: scale(1.05);
}

.sidebar h3 
{
    font-size: 1.7em;
    margin-bottom: 10px;
}

.sidebar p 
{
    margin-bottom: 15px;
}

.sidebar .social-icons 
{
    list-style: none;
    padding-left: 0;
}

.sidebar .social-icons li 
{
    margin-bottom: 10px;
}

.sidebar .social-icons li a 
{
    text-decoration: none;
    color: #333;
    font-weight: 500;
    position: relative;
    transition: color 0.3s;
}

.sidebar .social-icons li a::after 
{
    content: "";
    position: absolute;
    width: 0;
    height: 2px;
    bottom: -2px;
    left: 50%;
    background-color: #333;
    transform: translateX(-50%);
    transition: width 0.3s;
}

.sidebar .social-icons li a:hover::after 
{
    width: 100%;
    color: #000;
}

.page 
{
    flex: 1;
    background: #fff;
    padding: 30px;
    border-radius: 12px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.05);
    animation: fadeIn 1s ease forwards;
}

.page h1 
{
    font-size: 2.5em;
    margin-bottom: 25px;
    position: relative;
    display: inline-block;
}

.page h1::after 
{
    content: "";
    position: absolute;
    width: 0;
    height: 3px;
    background: #333;
    left: 50%;
    bottom: -5px;
    transform: translateX(-50%);
    transition: width 0.4s ease;
}

.page h1:hover::after 
{
    width: 100%;
}

.page__content p 
{
    margin-bottom: 20px;
    line-height: 1.8;
    animation: fadeInUp 0.8s ease forwards;
    opacity: 0;
}

.page__content p:nth-child(1) 
{
    animation-delay: 0.2s;
}

.page__content p:nth-child(2) 
{
    animation-delay: 0.4s;
}

.page__content p:nth-child(3) 
{
    animation-delay: 0.6s;
}

footer 
{
    padding: 25px 20px;
    text-align: center;
    background: #f5f5f5;
    margin-top: 40px;
    border-radius: 12px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.05);
}

footer a 
{
    color: #333;
    text-decoration: none;
    position: relative;
    transition: color 0.3s;
}

footer a::after 
{
    content: "";
    position: absolute;
    width: 0;
    height: 2px;
    bottom: -2px;
    left: 50%;
    background-color: #333;
    transform: translateX(-50%);
    transition: width 0.3s;
}

footer a:hover::after 
{
    width: 100%;
    color: #000;
}

footer .social-icons 
{
    margin-top: 10px;
}

footer .social-icons li 
{
    display: inline-block;
    margin: 0 5px;
}

@keyframes fadeIn 
{
    from 
    {
        opacity: 0;
        transform: translateY(20px);
    }
    to 
    {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInUp 
{
    from 
    {
        opacity: 0;
        transform: translateY(20px);
    }
    to 
    {
        opacity: 1;
        transform: translateY(0);
    }
}

@media screen and (max-width: 900px) 
{
    .container 
    {
        flex-direction: column;
    }
    .sidebar 
    {
        width: 100%;
        margin-bottom: 30px;
        top: auto;
    }
}

}
.download-cv {
  margin-top: 2rem;
}

.cv-button {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.8rem 1.5rem;
  background-color: #000000;
  color: #fff;
  font-weight: 600;
  text-decoration: none;
  border-radius: 0.5rem;
  transition: background-color 0.3s ease, transform 0.2s ease;
}

.cv-button:hover {
  background-color: #535353;
  transform: translateY(-2px);
}

.cv-button i {
  font-size: 1rem;
}