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

body {
    font-family: 'Montserrat', sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #e8e8e8;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header Styles */
.header {
    background-color: #272424;
    padding: 10px 0;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.header .container {
    max-width: 1200px;
    margin: -20px auto;
    padding: 0 10px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 100%;
}

.logo {
    display: flex;
    align-items: center;
}

.logo-image {
    height: 120px;
    margin-top: -5px;
    width: auto;
    object-fit: contain;
}

.navigation {
    display: flex;
    gap: 30px;
    align-items: center;
}

.nav-link {
    color: white;
    text-decoration: none;
    font-size: 13px;
    font-weight: bold;
    padding: 5px 10px;
    position: relative; 
    display: inline-block; 
}

.nav-link.active {
    color: #cebb9a;
}

.nav-link::after {
    content: '';
    position: absolute;
    left: 10px; 
    right: 10px; 
    bottom: 2px; 
    height: 2px; 
    background-color: white; 
    transform: scaleX(0); 
    transform-origin: center;
    transition: transform 0.3s ease;
}

.nav-link:hover::after {
    transform: scaleX(1); 
}

.donate-btn {
    background-color: #b63621;
    padding: 8px 16px;
    border-radius: 4px;
    transition: background-color 0.3s ease;
}

.donate-btn:hover {
    background-color: white;
    color: #537930;
}

/* Dropdown container */
.dropdown {
  position: relative;
  display: inline-block;
}

/* Dropdown button inherits nav-link style */
.dropbtn {
  background: none;
  border: none;
  font: inherit;
  color: inherit;
  cursor: pointer;
}

/* Dropdown menu */
.dropdown-content {
  font-size: 13px;
  font-weight: bold;
  display: none;
  position: absolute;
  background-color: #fff;
  min-width: 200px;
  box-shadow: 0 8px 16px rgba(0,0,0,0.2);
  border-radius: 8px;
  z-index: 1;
}

.dropdown-content a {
  color: #2c3e50;
  padding: 12px 16px;
  text-decoration: none;
  display: block;
}

.dropdown-content a:hover {
  background-color: #f2f2f2;
}

/* Show dropdown on hover */
.dropdown:hover .dropdown-content {
  display: block;
}

/* Optional: highlight active dropdown button */
.dropbtn.active {
  color: #b73621;
  font-size: 13px;
  font-weight: bold;
}


/* Decorative Header Section */
.decorative-header {
    margin-top: 80px;
    height: 80px;
    position: relative;
    overflow: hidden;
}

.green-section {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 50px;
    background-color: #537930;
    transform: skewY(1deg);
    transform-origin: top left;
}

.red-section {
    position: absolute;
    top: 30px;
    left: 0;
    width: 100%;
    height: 50px;
    background-color: #b63621;
    transform: skewY(-2deg);
    transform-origin: top left;
}


/* Main Content */
.main-content {
    padding: 10px 0 80px;
}

.opac-hero {
    text-align: center;
    margin-bottom: 80px;
}

.opac-title {
    font-family: 'Bebas Neue', sans-serif;
    font-size: 70px;
    font-weight: bold;
    letter-spacing: 8px;
    color: #272424;
    margin-bottom: 30px;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.1);
}

.opac-description {
    font-size: 18px;
    line-height: 1.8;
    color: black;
    margin-bottom: 50px;
    margin-left: auto;
    margin-right: auto;
}

.cta-button {
    display: inline-block;
    background-color: #b63621;
    color: white;
    text-decoration: none;
    font-family: 'Bebas Neue', sans-serif;
    font-size: 20px;
    font-weight: bold;
    letter-spacing: 2px;
    padding: 15px 40px;
    border-radius: 5px;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(182, 54, 33, 0.3);
}

.cta-button:hover {
    background-color: #a02e1a;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(182, 54, 33, 0.4);
}

/* Footer */
.footer {
    font-family: 'Bebas Neue', sans-serif;
    letter-spacing: 2px;
    background-color: #272424;
    color: #cebb9a;
    padding: 40px 0;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 40px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 15px;
}

.footer-text {
    text-align: justify;
    flex: 1;
}

.footer-text p {
    margin-bottom: 5px;
    font-size: 14px;
    opacity: 0.8;
}

.social-icons {
    display: flex;
    gap: 15px;
}

.social-icon {
    display: inline-block;
    width: 45px;
    height: 45px;
    color: #cebb9a;
    text-align: center;
    line-height: 45px;
    text-decoration: none;
    font-size: 20px;
    transition: background-color 0.3s ease;
    border-radius: 50%;
}

.social-icon:hover {
    background-color: #b73621;
}

/* Responsive Design */
@media (max-width: 768px) {
    .header .container {
        flex-direction: column;
        gap: 20px;
    }
    
    .navigation {
        gap: 20px;
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .opac-title {
        font-size: 50px;
        letter-spacing: 4px;
    }
    
    .opac-description {
        font-size: 16px;
        padding: 0 20px;
    }
    
    .cta-button {
        font-size: 18px;
        padding: 12px 30px;
    }
    
    .footer-content {
        flex-direction: column;
        text-align: center;
        gap: 30px;
    }
}

@media (max-width: 480px) {
    .opac-title {
        font-size: 40px;
        letter-spacing: 3px;
    }
    
    .nav-link {
        font-size: 12px;
    }
    
    .navigation {
        gap: 15px;
    }
    
    .cta-button {
        font-size: 16px;
        padding: 10px 25px;
    }
}

/* ===== HOUSE OF BOOKS ASSISTANT CHATBOT STYLES ===== */

/* Chat Icon */
.chat-icon {
  position: fixed;
  bottom: 24px;
  right: 24px; /* Changed from left: 24px */
  width: 50px;
  height: 50px;
  background: #b73621;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-shadow: 0 8px 20px rgba(183, 54, 33, 0.3);
  transition: all 0.3s ease;
  z-index: 1100;
  border: none;
}

.chat-icon:hover {
  transform: scale(1.1);
  box-shadow: 0 12px 30px rgba(183, 54, 33, 0.4);
}

.chat-icon i {
  font-size: 20px;
  color: white;
}

/* Chat Box */
.chat-box {
  position: fixed;
  bottom: 85px;
  right: 24px; /* Changed from left: 24px */
  width: 340px;
  max-width: calc(100vw - 48px);
  background: white;
  border-radius: 10px;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
  z-index: 1050;
  transform: translateY(20px) scale(0.95);
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
}

.chat-box.active {
  transform: translateY(0) scale(1);
  opacity: 1;
  visibility: visible;
}

/* Chat Header */
.chat-header {
  background: linear-gradient(135deg, #b73621, #8f2a1a);
  color: white;
  padding: 12px 14px;
  border-radius: 10px 10px 0 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.chat-header h3 {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 2px;
  font-family: "Montserrat", sans-serif;
}

.chat-header p {
  font-size: 12px;
  opacity: 0.9;
  font-family: "Montserrat", sans-serif;
}

.close-btn {
  background: none;
  border: none;
  color: white;
  cursor: pointer;
  padding: 4px;
  border-radius: 4px;
  transition: background-color 0.2s;
}

.close-btn:hover {
  background-color: rgba(255, 255, 255, 0.1);
}

.close-btn i {
  font-size: 14px;
}

/* Chat Content */
.chat-content {
  height: 200px;
  overflow-y: auto;
  background: #f9fafb;
  padding: 14px;
}

.welcome-message {
  background: white;
  padding: 12px;
  border-radius: 8px;
  margin-bottom: 16px;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

.welcome-message p {
  font-size: 14px;
  color: #374151;
  line-height: 1.5;
  font-family: "Montserrat", sans-serif;
}

.questions-label {
  font-size: 11px;
  color: #6b7280;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 10px;
  padding-left: 4px;
  font-family: "Montserrat", sans-serif;
}

.question-btn {
  width: 100%;
  text-align: left;
  padding: 12px;
  background: white;
  border: 1px solid #e5e7eb;
  border-radius: 8px;
  margin-bottom: 8px;
  cursor: pointer;
  transition: all 0.2s ease;
  font-size: 13px;
  color: #374151;
  font-family: "Montserrat", sans-serif;
}

.question-btn:hover {
  background: #fef2f2;
  border-color: #fecaca;
  color: #b73621;
}

/* Chat Messages */
.chat-messages {
  height: 200px;
  overflow-y: auto;
  background: #f9fafb;
  padding: 14px;
}

.back-btn {
  background: none;
  border: none;
  color: #b73621;
  cursor: pointer;
  font-size: 14px;
  font-weight: 500;
  margin-bottom: 12px;
  padding: 4px 0;
  font-family: "Montserrat", sans-serif;
}

.back-btn:hover {
  color: #8f2a1a;
}

#messagesContainer {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.message {
  max-width: 85%;
  padding: 10px 14px;
  border-radius: 12px;
  font-size: 14px;
  line-height: 1.4;
  font-family: "Montserrat", sans-serif;
}

.message.user {
  background: #b73621;
  color: white;
  align-self: flex-end;
  border-bottom-right-radius: 4px;
}

.message.bot {
  background: white;
  color: #374151;
  align-self: flex-start;
  border-bottom-left-radius: 4px;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.typing-indicator {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 10px 14px;
  background: white;
  border-radius: 12px;
  border-bottom-left-radius: 4px;
  align-self: flex-start;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.typing-dot {
  width: 6px;
  height: 6px;
  background: #9ca3af;
  border-radius: 50%;
  animation: typing 1.4s infinite;
}

.typing-dot:nth-child(2) {
  animation-delay: 0.2s;
}

.typing-dot:nth-child(3) {
  animation-delay: 0.4s;
}

@keyframes typing {
  0%,
  60%,
  100% {
    transform: translateY(0);
  }
  30% {
    transform: translateY(-10px);
  }
}

/* Chat Input */
.chat-input {
  padding: 10px 14px;
  background: white;
  border-top: 1px solid #e5e7eb;
  display: flex;
  gap: 8px;
  align-items: center;
}

#messageInput {
  flex: 1;
  padding: 10px 14px;
  border: 1px solid #d1d5db;
  border-radius: 20px;
  font-size: 14px;
  outline: none;
  transition: border-color 0.2s;
  font-family: "Montserrat", sans-serif;
}

#messageInput:focus {
  border-color: #b73621;
}

.send-btn {
  width: 36px;
  height: 36px;
  background: #b73621;
  border: none;
  border-radius: 50%;
  color: white;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background-color 0.2s;
}

.send-btn:hover {
  background: #8f2a1a;
}

.send-btn:disabled {
  background: #9ca3af;
  cursor: not-allowed;
}

.send-btn i {
  font-size: 14px;
}

/* Chat Footer */
.chat-footer {
  padding: 8px 14px;
  background: white;
  border-top: 1px solid #e5e7eb;
  border-radius: 0 0 10px 10px;
}

.footer-info {
  background: #f3f4f6;
  padding: 8px 12px;
  border-radius: 15px;
  font-size: 11px;
  color: #6b7280;
  text-align: center;
  font-family: "Montserrat", sans-serif;
}

/* Responsive adjustments for chatbot */
@media (max-width: 480px) {
  .header .container {
    flex-direction: column;
    align-items: flex-start;
    padding: 10px;
    gap: 10px;
  }

  .logo-image {
    height: 80px;
    margin-top: 0;
  }

  .navigation {
    flex-direction: column;
    align-items: flex-start;
    width: 100%;
    gap: 10px;
  }

  .nav-link {
    width: 100%;
    font-size: 12px;
    padding: 6px 0;
    display: block;
  }

  .dropbtn {
    width: 100%;
    text-align: left;
  }

  .dropdown-content {
    position: static;
    box-shadow: none;
    border-radius: 0;
    width: 100%;
    padding: 0;
  }

  .dropdown-content a {
    padding: 10px 0;
    font-size: 12px;
  }

  .opac-title {
    font-size: 36px;
    letter-spacing: 3px;
    padding: 0 10px;
  }

  .opac-description {
    font-size: 14px;
    padding: 0 10px;
    line-height: 1.6;
  }

  .cta-button {
    font-size: 14px;
    padding: 12px 24px;
    margin-top: 20px;
  }

  .footer-content {
    flex-direction: column;
    text-align: center;
    gap: 20px;
    padding: 10px;
  }

  .footer-text p {
    font-size: 12px;
  }

  .social-icon {
    width: 36px;
    height: 36px;
    font-size: 16px;
    line-height: 36px;
  }

  .chat-box {
    width: calc(100vw - 32px);
    right: 16px;
    bottom: 75px;
  }

  .chat-icon {
    right: 16px;
    bottom: 16px;
    width: 45px;
    height: 45px;
  }

  .chat-icon i {
    font-size: 18px;
  }
}

@media (max-width: 768px) {
.burger {
  display: block;
  background: none;
  border: none;
  font-size: 24px;
  color: white;
  cursor: pointer;
  z-index: 1001;
  margin-left: auto;         /* push to the right */
  margin-right: 10px;
  position: relative;
  top: 10px;                 /* slight vertical spacing */
}

  .navigation {
    display: none;
    flex-direction: column;
    background-color: #222;
    position: absolute;
    top: 70px; /* Adjust based on header height */
    right: 0;
    width: 100%;
    padding: 10px 20px;
    z-index: 1000;
    padding-top: 60px; /* shift menu down so it doesn't start right under the icon */
  }

  .navigation.show {
    display: flex;
  }

  .nav-link,
  .dropbtn {
    padding: 10px 0;
    font-size: 14px;
    color: #fff;
    text-align: left;
  }

  .dropdown-content {
    position: static;
    background: #333;
  }

  .dropdown-content a {
    font-size: 13px;
    padding: 5px 10px;
  }
}