:root {
    --primary-color: #79242b; /* Guinda/Vino, color frecuente en gobiernos en México */
    --primary-light: #a33b45;
    --bg-color: #f4f6f9;
    --chat-bg: #ffffff;
    --text-main: #333333;
    --text-muted: #666666;
    --msg-bot-bg: #f0f2f5;
    --msg-bot-text: #1c1e21;
    --msg-user-bg: var(--primary-color);
    --msg-user-text: #ffffff;
}

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

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-color);
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
}

.chat-container {
    width: 100%;
    max-width: 400px;
    height: 100vh;
    max-height: 100vh;
    background-color: var(--chat-bg);
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.chat-header {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    color: white;
    padding: 15px 20px;
    text-align: left;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
    z-index: 10;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.close-bot-btn {
    background: transparent;
    border: none;
    color: white;
    font-size: 28px;
    cursor: pointer;
    line-height: 1;
    padding: 0 5px;
    opacity: 0.8;
    transition: opacity 0.2s, transform 0.2s;
}

.close-bot-btn:hover {
    opacity: 1;
    transform: scale(1.1);
}

.header-info h2 {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 5px;
}

.header-info p {
    font-size: 0.85rem;
    opacity: 0.9;
}

.chat-messages {
    flex: 1;
    padding: 20px;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 15px;
    background-color: #fafbfc;
}

.message {
    display: flex;
    max-width: 85%;
    animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.message.bot {
    align-self: flex-start;
}

.message.user {
    align-self: flex-end;
}

.message-content {
    padding: 12px 16px;
    border-radius: 18px;
    font-size: 0.95rem;
    line-height: 1.4;
    word-wrap: break-word;
}

.message.bot .message-content {
    background-color: var(--msg-bot-bg);
    color: var(--msg-bot-text);
    border-bottom-left-radius: 4px;
}

.message.user .message-content {
    background-color: var(--msg-user-bg);
    color: var(--msg-user-text);
    border-bottom-right-radius: 4px;
}

.chat-input-area {
    padding: 15px;
    background-color: white;
    border-top: 1px solid #eaeaea;
    display: flex;
    gap: 10px;
    align-items: center;
}

#user-input {
    flex: 1;
    padding: 12px 15px;
    border: 1px solid #ddd;
    border-radius: 25px;
    outline: none;
    font-size: 0.95rem;
    transition: border-color 0.2s;
}

#user-input:focus {
    border-color: var(--primary-color);
}

#send-btn {
    background-color: var(--primary-color);
    color: white;
    border: none;
    width: 45px;
    height: 45px;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    cursor: pointer;
    transition: background-color 0.2s, transform 0.1s;
}

#send-btn:hover {
    background-color: var(--primary-light);
}

#send-btn:active {
    transform: scale(0.95);
}

/* Indicador de carga */
.typing-indicator {
    display: flex;
    gap: 4px;
    padding: 15px 20px;
    background-color: var(--msg-bot-bg);
    border-radius: 18px;
    border-bottom-left-radius: 4px;
    align-self: flex-start;
    width: fit-content;
}

.typing-indicator span {
    width: 6px;
    height: 6px;
    background-color: #888;
    border-radius: 50%;
    animation: bounce 1.4s infinite ease-in-out both;
}

.typing-indicator span:nth-child(1) { animation-delay: -0.32s; }
.typing-indicator span:nth-child(2) { animation-delay: -0.16s; }

@keyframes bounce {
    0%, 80%, 100% { transform: scale(0); }
    40% { transform: scale(1); }
}