@font-face {
  font-family: 'IRANYekan';
  src: url('fonts/iranyekanwebregular.woff') format('woff');
  font-weight: normal;
}
@font-face {
  font-family: 'IRANYekan';
  src: url('fonts/iranyekanwebbold.woff') format('woff');
  font-weight: bold;
}

:root {
  --bg-color: #ffffff;
  --text-color: #000000;
  --tag-bg: #2b2b2b;
}
[data-theme="dark"] {
  --bg-color: #121212;
  --text-color: #ffffff;
  --tag-bg: #2b2b2b;
}

body {
  font-family: 'IRANYekan', sans-serif;
  margin: 0;
  padding: 0;
  background-color: var(--bg-color);
  color: var(--text-color);
  transition: background-color 0.3s, color 0.3s;
}

.container {
  max-width: 800px;
  margin: 0 auto;
  padding: 40px 20px;
  text-align: center;
}

h1 {
  font-size: 2em;
  margin-bottom: 10px;
  font-weight: bold;
}

.subtitle {
  font-size: 1.1em;
  margin-bottom: 30px;
  font-weight: normal;
}

.toggle-theme {
  position: fixed;
  top: 10px;
  left: 10px;
  width: 36px;
  height: 36px;
  background-color: #ccc;
  border: none;
  border-radius: 50%;
  cursor: pointer;
}

.content-box {
  background-color: var(--bg-color);
  padding: 30px;
  border-radius: 10px;
  box-shadow: 0px 4px 6px rgba(0, 0, 0, 0.1);
}
[data-theme="dark"] .content-box {
  background-color: #2b2b2b;
}

.info {
  margin-top: 30px;
  font-size: 1.1em;
}
.info a {
  color: var(--text-color);
  text-decoration: none;
}
.info a:hover {
  text-decoration: underline;
}

.keywords {
  margin-top: 30px;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
}
.keyword {
  background-color: var(--tag-bg);
  color: #fff;
  padding: 5px 15px;
  border-radius: 20px;
  font-size: 0.95em;
  transition: transform 0.2s;
}
.keyword:hover {
  transform: scale(1.05);
}
.keywords span:hover {
  background-color: #007BFF;
  color: #fff;
  transition: background-color 0.3s, color 0.3s;
  cursor: pointer;
}

.footer {
  margin-top: 50px;
  padding: 20px 0;
  text-align: center;
  font-size: 0.9em;
  color: var(--text-color);
}

/* Messenger Floating Buttons */
#messenger-container {
  position: fixed;
  bottom: 20px;
  right: 20px;
  z-index: 1000;
  text-align: center;
  transition: all 0.3s ease;
}

#messenger-button {
  width: 60px;
  height: 60px;
  background-color: #4c9e6f;
  border-radius: 50%;
  display: flex;
  justify-content: center;
  align-items: center;
  cursor: pointer;
  box-shadow: 0px 4px 6px rgba(0, 0, 0, 0.3);
}
#messenger-button img {
  width: 40px;
  height: 40px;
}

#messenger-chat-buttons {
  display: none;
  margin-top: 10px;
}
#messenger-chat-buttons a {
  display: block;
  margin: 5px 0;
}
#messenger-chat-buttons img {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  transition: transform 0.3s ease;
}
#messenger-chat-buttons img:hover {
  transform: scale(1.1);
}
#messenger-container.active {
  bottom: 90px;
}
#messenger-chat-buttons.active {
  display: block;
}

/* Modal */
.modal {
  display: none;
  position: fixed;
  z-index: 999;
  right: 0;
  left: 0;
  top: 0;
  bottom: 0;
  background-color: rgba(0, 0, 0, 0.6);
  justify-content: center;
  align-items: center;
}
.modal-content {
  background-color: #fff;
  max-width: 500px;
  margin: auto;
  padding: 20px;
  border-radius: 16px;
  position: relative;
  direction: rtl;
  font-family: IRANYekan, sans-serif;
  text-align: justify;
  animation: fadeIn 0.3s ease-in-out;
}
.modal .close {
  po