* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: "Inter", sans-serif;
}

body {
  display: flex;
  background: #f4f7f5;
  color: #2f2f2f;
}

/* ===== Sidebar ===== */
.sidebar {
  width: 260px;
  background: #ffffff;
  border-right: 1px solid #eaeaea;
  height: 100vh;
  position: fixed;
  overflow-y: auto;
  padding: 1.8rem 1.2rem;
}

.sidebar-logo {
  font-size: 1.4rem;
  font-weight: 700;
  color: #145a32;
  margin-bottom: 2.5rem;
}

/* Nav groups */
.nav-group {
  margin-bottom: 2.2rem;
}

.nav-group h4 {
  font-size: 0.72rem;
  letter-spacing: 1.2px;
  color: #27ae60;
  margin-bottom: 0.9rem;
  text-transform: uppercase;
}

.nav-group a {
  display: block;
  text-decoration: none;
  color: #444;
  font-size: 0.92rem;
  padding: 0.45rem 0.6rem;
  border-radius: 8px;
  transition: all 0.25s ease;
}

.nav-group a:hover {
  background: #eef8f1;
  color: #1e8449;
}

.nav-group a.active {
  background: #27ae60;
  color: #fff;
  font-weight: 500;
}

/* ===== Main ===== */
.main {
  margin-left: 260px;
  width: calc(100% - 260px);
}

/* ===== Page Header ===== */
.page-header {
  padding: 3.5rem 3.5rem 2.5rem;
  background: linear-gradient(
    to bottom,
    #ffffff,
    #f8fbf9
  );
  border-bottom: 1px solid #eee;
}

.page-tag {
  font-size: 0.7rem;
  letter-spacing: 1.3px;
  color: #27ae60;
  font-weight: 600;
  text-transform: uppercase;
}

.page-header h1 {
  font-size: 3rem;
  margin: 0.6rem 0 1rem;
  color: #145a32;
  line-height: 1.1;
}

.page-header p {
  max-width: 680px;
  color: #666;
  font-size: 1rem;
  line-height: 1.7;
}

/* ===== Content ===== */
.content {
  padding: 3rem;
  background: #ffffff;
}

article {
  max-width: 820px;
}

article h2 {
  margin: 3rem 0 1rem;
  color: #145a32;
  font-size: 1.6rem;
}

article p {
  line-height: 1.85;
  color: #555;
  margin-bottom: 1.2rem;
}

/* Images */
article img {
  width: 100%;
  margin: 2.5rem 0;
  border-radius: 22px;
  box-shadow: 0 18px 40px rgba(0,0,0,0.08);
}

/* Blockquote */
blockquote {
  margin: 2.5rem 0;
  padding: 1.2rem 1.5rem;
  border-left: 4px solid #27ae60;
  background: #f3fbf6;
  border-radius: 12px;
  font-style: italic;
  color: #333;
}

/* ===== Footer ===== */
.page-footer {
  text-align: center;
  padding: 2.5rem;
  font-size: 0.85rem;
  color: #777;
  background: #f9f9f9;
}

/* ===== Mobile ===== */
.sidebar-toggle {
  display: none;
}

@media (max-width: 900px) {
  .sidebar {
    transform: translateX(-100%);
    transition: 0.35s ease;
    z-index: 999;
  }

  .sidebar.active {
    transform: translateX(0);
  }

  .main {
    margin-left: 0;
    width: 100%;
  }

  .sidebar-toggle {
    display: block;
    position: fixed;
    top: 1rem;
    left: 1rem;
    background: #27ae60;
    color: white;
    border: none;
    padding: 0.65rem 0.9rem;
    border-radius: 10px;
    font-size: 1.2rem;
    z-index: 1000;
  }

  .page-header {
    padding: 3rem 1.8rem 2rem;
  }

  .content {
    padding: 2rem 1.8rem;
  }
}

/* ===== Contact Page ===== */
.contact-cards {
  display: flex;
  gap: 2rem;
  flex-wrap: wrap;
  margin-bottom: 3rem;
}

.contact-card {
  flex: 1 1 250px;
  background: #f9fdf9;
  border: 1px solid #e6f2eb;
  padding: 1.8rem;
  border-radius: 18px;
  text-align: center;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.contact-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 15px 35px rgba(0,0,0,0.08);
}

.contact-card h2 {
  color: #145a32;
  margin-bottom: 0.6rem;
  font-size: 1.2rem;
}

.contact-card p {
  color: #444;
  font-size: 1rem;
}

/* Contact Form */
.contact-form {
  max-width: 650px;
  display: flex;
  flex-direction: column;
  gap: 1.3rem;
}

.contact-form label {
  font-weight: 500;
  color: #145a32;
}

.contact-form input,
.contact-form textarea {
  padding: 0.85rem 1rem;
  border-radius: 12px;
  border: 1px solid #ddd;
  font-size: 0.95rem;
  outline: none;
  transition: border-color 0.25s ease, box-shadow 0.25s ease;
}

.contact-form input:focus,
.contact-form textarea:focus {
  border-color: #27ae60;
  box-shadow: 0 4px 15px rgba(39, 174, 96, 0.2);
}

.contact-form button {
  background: #27ae60;
  color: white;
  border: none;
  padding: 0.9rem 1.2rem;
  border-radius: 12px;
  font-size: 1rem;
  cursor: pointer;
  transition: background 0.25s ease, transform 0.25s ease;
}

.contact-form button:hover {
  background: #1e8449;
  transform: translateY(-2px);
}

/* Mobile */
@media (max-width: 900px) {
  .contact-cards {
    flex-direction: column;
  }

  .contact-card {
    width: 100%;
  }
}