/* all styles */
body {
  font-family: "Segoe UI", Arial, sans-serif;
  margin: 0;
  color: #333;
  background-color: #fafafa;
  line-height: 1.6;
}

/* guide */
header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 2rem;
  background: #fff;
  box-shadow: 0 2px 6px rgba(0,0,0,0.08);
  position: sticky;
  top: 0;
  z-index: 100;
}

.logo {
  font-size: 1.5rem;
  color: #f39c12;
}

nav ul {
  list-style: none;
  display: flex;
  gap: 1.5rem;
  margin: 0;
  padding: 0;
}

nav a {
  text-decoration: none;
  color: #333;
  font-weight: 500;
  transition: 0.3s;
}

nav a:hover,
nav a.active {
  color: #f39c12;
}

/* say hi area */
.hero {
  text-align: center;
  padding: 6rem 2rem;
  background: linear-gradient(135deg, #fffbe6, #ffe0b2);
}

.hero-text {
  max-width: 700px;
  margin: auto;
}

.hero h2 {
  font-size: 2.2rem;
  margin-bottom: 1rem;
}

.btn {
  display: inline-block;
  margin-top: 1rem;
  background-color: #f39c12;
  color: white;
  padding: 0.7rem 1.4rem;
  border-radius: 8px;
  text-decoration: none;
  transition: 0.3s;
}
.btn:hover {
  background-color: #d17e00;
}
.btn.small {
  font-size: 0.9rem;
  padding: 0.5rem 1.2rem;
}

/* project introduction */
.intro {
  max-width: 800px;
  margin: 4rem auto;
  background: white;
  padding: 2rem;
  border-radius: 12px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.05);
}

.intro h3 {
  color: #f39c12;
  margin-bottom: 1rem;
}

/* my life */
.study-abroad {
  background: #fffaf3;
  padding: 3rem 2rem;
  text-align: center;
}

.study-abroad h3 {
  color: #f39c12;
  margin-bottom: 1rem;
}

.study-abroad p {
  max-width: 700px;
  margin: 0 auto 2rem;
  color: #444;
}

.life-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1.5rem;
  max-width: 900px;
  margin: 0 auto;
}

.life-item img {
  width: 100%;
  border-radius: 12px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.1);
  object-fit: cover;
}

.life-item p {
  font-size: 0.95rem;
  margin-top: 0.5rem;
  color: #555;
}


/* footer */
footer {
  background: #eee;
  text-align: center;
  padding: 1rem;
  font-size: 0.9rem;
  color: #555;
  margin-top: 3rem;
}