body.dark {
    background: #1c1c1c !important;
    color: white !important;
}

body.dark .chat-container {
    background: #2b2b2b;
    color: white;
}

body.dark .chat-box {
    background: #333;
    border-color: #444;
}

body.dark .message.user {
    background: #4c6ef5;
    color: white;
}

body.dark .message.bot {
    background: #555;
    color: white;
}

body.dark #sendBtn {
    background: #4c6ef5;
}

body.dark #themeToggle {
    color: white;
    border-color: white;
}

/* Loading Animation */
.loading {
    display: flex;
    justify-content: center;
    margin: 10px 0;
}

.spinner {
    width: 30px;
    height: 30px;
    border: 4px solid #ccc;
    border-top: 4px solid #007bff;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Doctor Avatar + Bottom Bar */
.bottom-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 10px;
}

.doctor-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
}

body {
    background: linear-gradient(135deg, #5a8dee, #6ed3cf);
    font-family: 'Poppins', sans-serif;
    margin: 0;
    padding: 20px;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
}

.chat-container {
    background: #ffffff;
    width: 420px;
    border-radius: 20px;
    padding: 20px;
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.1);
    animation: fadeIn 0.7s ease-in-out;
}

.header {
    text-align: center;
    margin-bottom: 20px;
}

.header .logo {
    width: 70px;
    margin-bottom: 10px;
}

.header h2 {
    margin: 0;
    font-weight: 600;
    color: #333;
}

.header p {
    font-size: 14px;
    color: #666;
}

.chat-box {
    height: 360px;
    overflow-y: auto;
    border-radius: 10px;
    padding: 10px;
    background: #f7f9fc;
    margin-bottom: 15px;
    border: 1px solid #e5e5e5;
}

.message {
    padding: 10px;
    margin-bottom: 10px;
    border-radius: 10px;
    max-width: 85%;
    animation: slideIn 0.4s ease-in-out;
}

.message.user {
    background: #d1e8ff;
    align-self: flex-end;
    text-align: right;
}

.message.bot {
    background: #e6e6e6;
    text-align: left;
}

.input-area textarea {
    border-radius: 10px;
    resize: none;
    border: 1px solid #bcd;
}

#sendBtn {
    border-radius: 10px;
    font-weight: 600;
    padding: 10px;
    background: #0066ff;
}

#sendBtn:hover {
    background: #004ecc;
}

/* Animations */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes slideIn {
    from { opacity: 0; transform: translateX(20px); }
    to { opacity: 1; transform: translateX(0); }
}
    to { opacity: 1; transform: translateX(0); }