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

/* ===== BASE ===== */
body {
  font-family: 'Segoe UI', sans-serif;
  font-size: 16px;
  line-height: 1.6;
  background-color: #f6f8fa;
  color: #1a1a1a;
  display: flex;
  min-height: 100vh;
}

/* ===== SIDEBAR NAVIGATION ===== */
.sidebar {
  background-color: #ffffff;
  width: 250px;
  min-height: 100vh;
  padding: 2rem 1rem;
  box-shadow: 2px 0 8px rgba(0,0,0,0.05);
  position: sticky;
  top: 0;
  display: flex;
  flex-direction: column;
  gap: 2rem;
  transition: all 0.3s ease;
  z-index: 1000;
}

.logo {
  font-size: 1.6rem;
  font-weight: bold;
  color: #1a7f4c;
  text-align: center;
  margin-bottom: 2rem;
}

.nav {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.nav a {
  color: #1a1a1a;
  text-decoration: none;
  font-weight: 500;
  padding: 0.5rem 1rem;
  border-left: 4px solid transparent;
  transition: all 0.2s ease-in-out;
}

.nav a:hover,
.nav a.active {
  background-color: #e9f6f0;
  border-left: 4px solid #1a7f4c;
  color: #1a7f4c;
}

/* ===== MAIN CONTENT ===== */
.main {
  flex: 1;
  padding: 2rem;
  max-width: 1000px;
  margin: auto;
}

section {
  background-color: #ffffff;
  padding: 2rem;
  border-radius: 8px;
  margin-bottom: 2rem;
  box-shadow: 0 2px 8px rgba(0,0,0,0.05);
  animation: fadeInUp 0.5s ease;
}

section h1,
section h2 {
  margin-bottom: 1rem;
  color: #1a7f4c;
}

section p {
  margin-bottom: 1rem;
}

ul {
  padding-left: 1.5rem;
  margin-bottom: 1rem;
}

ul li {
  list-style: disc;
  margin-bottom: 0.5rem;
}

/* ===== FOOTER ===== */
footer {
  padding: 2rem;
  background-color: #1a7f4c;
  color: #fff;
  text-align: center;
  font-size: 0.9rem;
}

footer a {
  color: #c7ffe1;
  text-decoration: underline;
}

/* ===== ANIMATIONS ===== */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(15px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
  body {
    flex-direction: column;
  }

  .sidebar {
    width: 100%;
    position: relative;
    flex-direction: row;
    flex-wrap: wrap;
    justify-content: center;
    gap: 1rem;
    padding: 1rem;
    box-shadow: none;
    border-bottom: 1px solid #ccc;
  }

  .logo {
    width: 100%;
    text-align: center;
    margin-bottom: 0.5rem;
  }

  .nav {
    flex-direction: row;
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.5rem;
  }

  .nav a {
    border-left: none;
    padding: 0.5rem 1rem;
    border-radius: 4px;
  }

  .main {
    padding: 1.2rem;
  }
}