:root {
  --font-family: "Helvetica Neue", Arial, sans-serif;
  --primary-colour: #556b2f;
  --secondary-colour: #f5f6fa;
  --text-colour: rgb(41, 58, 11);
  --box-shadow: 0 8px 32px rgba(0,0,0,0.12);
}

body {
  font-family: var(--font-family);
  background-color: var(--secondary-colour);
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  margin: 0;
  padding: 0;
}

#chat-container,
#add-message-container {
  width: 100%;
  max-width: 500px;
  margin: 0 auto;
  box-sizing: border-box;
  display: flex;
  flex-direction: column;
  align-items: stretch;
}

#chat-container {
  background: #fff;
  box-shadow: var(--box-shadow);
  overflow: hidden;
}

.chat-header {
  background: var(--primary-colour);
  color: #f9f9f9;
  font-size: 1.3rem;
  font-weight: bold;
  width: 100%;
  box-sizing: border-box;
  padding: 18px 24px;
  letter-spacing: 1px;
  border-bottom: 1px solid #e5e5e5;
}

#chat-display {
  flex: 1 1 auto;
  max-height: 60dvh;
  overflow-y: auto;
  background: #fafafc;
  padding: 24px;
  display: flex;
  flex-direction: column;
  align-items: stretch;

}

#chat-display::-webkit-scrollbar {
  width: 8px;
}
#chat-display::-webkit-scrollbar-thumb {
  background: #bbb;
  border-radius: 4px;
}

.chat-message-wrapper {
  display: flex;
  flex-direction: column;
  width: 100%;
}

.chat-message-wrapper.own {
  align-items: flex-end;
}

.chat-message-wrapper.other {
  align-items: flex-start;
}

.chat-sender {
  font-size: 0.85em;
  color: #555;
  margin-top: 16px;
  margin-left: 8px;
  margin-bottom: 2px;
}

.chat-bubble {
  font-size: 1.2rem;
  background: #fff;
  color: #222;
  padding: 10px 16px;
  border-radius: 18px;
  margin: 6px 0;
  max-width: 70%;
  min-width: 40px;
  word-break: break-word;
  width: fit-content;
  box-shadow: 0 2px 8px rgba(0,0,0,0.08);
}

.chat-message-wrapper.own .chat-bubble {
  border-top-right-radius: 4px;
}

.chat-message-wrapper.other .chat-bubble {
  border-top-left-radius: 4px; 
}

#add-message-container {
  background: var(--primary-colour);
  box-shadow: 0 2px 8px rgba(0,0,0,0.08);
  padding: 16px 24px;
  box-sizing: border-box;
}

#add-message-form {
  width: 100%;
  max-width: 500px;
  margin: 0;
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: 10px;
  background: #f5f5f5;
  box-shadow: 0 2px 8px rgba(0,0,0,0.08);
  padding: 12px 16px;
  box-sizing: border-box;
}

#add-message-form input[type="text"] {
  width: 100%;
  border: 1px solid #d1d5db;
  border-radius: 8px;
  padding: 10px 14px;
  font-size: 1rem;
  outline: none;
  background: #fff;
  color: #222;
  transition: border-color 0.18s;
  box-sizing: border-box;
}

#add-message-form input[type="text"]:focus {
  border-color: var(--primary-colour);
}

.form-actions {
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: 12px;
  margin-top: 4px;
  width: 100%;
  justify-content: flex-end;
}

#add-message-form input[type="color"] {
  width: 36px;
  height: 36px;
  border: none;
  background: transparent;
  margin-left: 8px;
  cursor: pointer;
  padding: 0;
  appearance: auto;
}

#add-message-form button[type="submit"] {
  background: #556b2f;
  color: #fff;
  font-weight: bold;
  border: none;
  border-radius: 8px;
  padding: 10px 18px;
  font-size: 1rem;
  cursor: pointer;
  transition: background 0.2s;
}

#add-message-form button[type="submit"]:active {
  transform: translateY(1px) scale(0.99);
  box-shadow: 0 1px 2px rgba(0,0,0,0.2);
}

#add-message-form button[type="submit"]:hover {
  background: #6b8e23;
}

/* like/dislike buttons */
.like-btn, .dislike-btn {
  font-size: 0.9em;
  padding: 2px 6px;
  margin: 0 1px;
  background: none;
  border: none;
  outline: none;
  cursor: pointer;
  transition: background 0.2s, box-shadow 0.2s;
  border-radius: 4px;
  vertical-align: middle;
}
.chat-likes {
  font-size: 0.75em;
}

/* user feedback */
.add-chat-success {
  display: block;
  background: #d4edda;
  color: #155724;
  border: 1px solid #c3e6cb;
  font-size: 1.1rem;
  font-family: var(--font-family);
  padding: 12px 0;
  border-radius: var(--border-radius);
  margin: 16px auto 0 auto;
  text-align: center;
  width: 100%;
  max-width: 400px;
  box-sizing: border-box;
}
.add-chat-error {
  display: block;
  background: #f8d7da;
  color: #721c24;
  border: 1px solid #f5c6cb;
  font-size: 1.1rem;
  font-family: var(--font-family);
  padding: 12px 0;
  border-radius: var(--border-radius);
  margin: 16px auto 0 auto;
  text-align: center;
  width: 100%;
  max-width: 400px;
  box-sizing: border-box;
}
.chat-error {
  color: red;
  font-weight: bold;
  margin: 8px 0;
}

@media (max-width: 600px) {
  #chat-container,
  #add-message-container {
    margin-left: 12px;
    margin-right: 12px;
    width: 90%;
  }
 .chat-bubble{
  font-size: 1rem;
 }
}