/* Resetting some defaults */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* Body */
body {
    font-family: 'Roboto', sans-serif;
    background: linear-gradient(135deg, #1e2a47, #4e4376);
    color: #f1f1f1;
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 20px;
    overflow: hidden;
    text-align: center;
    background-size: cover;
    animation: backgroundAnimation 10s infinite linear;
}

/* Background Animation */
@keyframes backgroundAnimation {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

/* Main Container */
.container {
    max-width: 900px;
    width: 100%;
    padding: 20px;
    border-radius: 15px;
    background-color: rgba(0, 0, 0, 0.7);
    box-shadow: 0 0 40px rgba(0, 0, 0, 0.3);
    backdrop-filter: blur(12px);
}

/* Chat Container */
#chat-container {
    max-width: 450px;
    width: 100%;
    background-color: #1f1f1f;
    padding: 30px;
    border-radius: 15px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
    backdrop-filter: blur(10px);
    transition: all 0.4s ease;
}

/* Chat Box */
#chat-box {
    height: 400px;
    overflow-y: auto;
    margin-bottom: 25px;
    padding: 20px;
    background-color: rgba(255, 255, 255, 0.2);
    border-radius: 12px;
    border: 1px solid #444;
    font-size: 16px;
    color: #ddd;
    transition: all 0.3s ease;
}

/* Chat Messages */
#chat-box .bot-message,
#chat-box .user-message {
    padding: 15px;
    border-radius: 20px;
    margin-bottom: 15px;
    max-width: 75%;
    font-size: 16px;
    line-height: 1.6;
}

/* Bot Message */
#chat-box .bot-message {
    background-color: #444;
    align-self: flex-start;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.4);
}

/* User Message */
#chat-box .user-message {
    background-color: #61dafb;
    color: #222;
    align-self: flex-end;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
}

/* Input Box */
input[type="text"] {
    padding: 15px;
    width: 80%;
    margin-bottom: 15px;
    border-radius: 30px;
    border: 1px solid #444;
    font-size: 16px;
    background-color: #333;
    color: #fff;
    transition: border 0.3s ease;
}

/* Focus effect on Input Box */
input[type="text"]:focus {
    border: 1px solid #61dafb;
    outline: none;
}

/* Send Button */
button#send-btn {
    width: 18%;
    padding: 15px;
    background-color: #61dafb;
    color: #fff;
    border-radius: 30px;
    border: none;
    cursor: pointer;
    font-size: 16px;
    transition: all 0.4s ease;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
}

/* Hover effect on Send Button */
button#send-btn:hover {
    background-color: #4da1d1;
    transform: translateY(-4px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.4);
}

/* Footer Styling */
footer {
    position: absolute;
    bottom: 10px;
    text-align: center;
    font-size: clamp(0.8rem, 1.5vw, 0.9rem);
    color: rgba(255, 255, 255, 0.8);
    animation: fadeIn 2s ease;
}

footer a {
    color: #61dafb;
    text-decoration: none;
    transition: color 0.3s ease;
}

footer a:hover {
    color: #4e4376;
    text-decoration: underline;
}

/* Popup */
.popup {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: rgba(50, 50, 50, 0.9);
    padding: 30px;
    border-radius: 15px;
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.5);
    display: none;
    font-size: 16px;
    text-align: center;
}

.popup button {
    background-color: #4da1d1;
    color: white;
    padding: 10px 20px;
    border: none;
    border-radius: 8px;
    cursor: pointer;
}

/* Hover effect on Popup Button */
.popup button:hover {
    background-color: #61dafb;
}

/* Transfer Input Fields */
#transfer-inputs {
    display: none;
    margin-top: 20px;
    text-align: left;
}

#account-number {
    display: none;
    margin-bottom: 10px;
}

#account-number input {
    padding: 10px;
    font-size: 16px;
    width: 100%;
    border-radius: 8px;
    border: 1px solid #444;
}

/* Account Details */
#account-details {
    display: none;
    margin-top: 20px;
    font-size: 16px;
}

/* Confirm Button */
#confirm-btn {
    display: none;
    padding: 12px 20px;
    background-color: #61dafb;
    color: white;
    border: none;
    border-radius: 8px;
    cursor: pointer;
}

#confirm-btn:hover {
    background-color: #4da1d1;
}

/* Typing Animation for Welcome Text */
@keyframes typing {
    from { width: 0; }
    to { width: 100%; }
}

@keyframes blink {
    from, to { border-color: transparent; }
    50% { border-color: #fff; }
}

/* Chat Box Scroll */
#chat-box {
    height: 400px;
    overflow-y: auto;
    margin-bottom: 25px;
    padding: 20px;
    background-color: rgba(255, 255, 255, 0.2);
    border-radius: 12px;
    border: 1px solid #444;
    font-size: 16px;
    color: #ddd;
    transition: all 0.3s ease;
}