:root {
    --font-family: 'Inter', sans-serif;
    --primary-color: #0102f6;
    --primary-hover-color: #0002d1;
    --error-color: #ff0600;
    --secondary-color: #fbcb40;
    
    --chat-background: #ffffff;
    --user-message-bg: var(--primary-color);
    --bot-message-bg: #f0f2f5;
    --text-color-light: #ffffff;
    --text-color-dark: #050505;
    --border-color: #e5e5e5;
    --border-radius: 20px;
    --widget-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
}

#chat-widget-container * {
     font-family: var(--font-family) !important;
     box-sizing: border-box;
}

#chat-widget-container {
    position: fixed;
    bottom: 20px;
    left: 20px;
    z-index: 1000;
}

#chat-popup {
    position: absolute;
    bottom: calc(100% + 10px);
    left: 0;
    width: 360px;
    height: 70vh;
    max-height: 540px;
    border-radius: var(--border-radius);
    background-color: var(--chat-background);
    box-shadow: var(--widget-shadow);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    transform: scale(0.8) translateY(20px);
    opacity: 0;
    transform-origin: bottom left;
    transition: transform 0.25s cubic-bezier(0.4, 0, 0.2, 1), opacity 0.25s ease-out;
    pointer-events: none;
}

#chat-widget-container.open #chat-popup {
    transform: scale(1) translateY(0);
    opacity: 1;
    pointer-events: auto;
}

#chat-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 20px;
    background-color: var(--primary-color);
    color: var(--text-color-light);
    flex-shrink: 0;
}

#chat-title {
    font-size: 1.75em; /* Restaurado al tamaño original */
    font-weight: 600;
}

#close-chat-btn {
    background: none;
    border: none;
    color: var(--text-color-light);
    font-size: 24px;
    cursor: pointer;
    opacity: 0.8;
    transition: opacity 0.2s, color 0.2s;
}
#close-chat-btn:hover {
    opacity: 1;
    color: var(--error-color);
}

#messages {
    flex-grow: 1;
    padding: 20px;
    overflow-y: auto;
    list-style-type: none;
    margin: 0;
    scroll-behavior: smooth;
    display: flex;
    flex-direction: column;
    gap: 4px;
    /* Se eliminó el fondo con el logo */
}

#messages::-webkit-scrollbar {
    width: 6px;
}
#messages::-webkit-scrollbar-track {
    background: transparent;
}
#messages::-webkit-scrollbar-thumb {
    background: #d1d1d1;
    border-radius: 3px;
}
#messages::-webkit-scrollbar-thumb:hover {
    background: #b3b3b3;
}

#scroll-to-bottom-btn {
    position: absolute;
    bottom: 80px;
    left: 50%;
    transform: translateX(-50%);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.9);
    color: #333;
    border: 1px solid var(--border-color);
    box-shadow: 0 2px 6px rgba(0,0,0,0.1);
    cursor: pointer;
    display: flex;
    justify-content: center;
    align-items: center;
    opacity: 0;
    transition: opacity 0.3s, transform 0.3s;
    pointer-events: none;
}

#scroll-to-bottom-btn.hidden {
    opacity: 0;
    transform: translateX(-50%) translateY(10px);
    pointer-events: none;
}

#scroll-to-bottom-btn:not(.hidden) {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
    pointer-events: auto;
}

#scroll-to-bottom-btn svg {
    width: 24px;
    height: 24px;
}

#message-form {
    display: flex;
    padding: 10px 20px;
    background-color: #fff;
    border-top: 1px solid var(--border-color);
    flex-shrink: 0;
}

#message-input {
    flex-grow: 1;
    border: 1px solid var(--border-color);
    border-radius: 24px;
    padding: 14px 21px;
    font-size: 1.39em; /* Restaurado al tamaño original */
    transition: border-color 0.2s, box-shadow 0.2s;
}
#message-input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(1, 2, 246, 0.2);
}

#send-button {
    border: none;
    background-color: var(--primary-color);
    color: var(--text-color-light);
    width: 48px;
    height: 48px;
    border-radius: 50%;
    margin-left: 8px;
    cursor: pointer;
    display: flex;
    justify-content: center;
    align-items: center;
    transition: background-color 0.2s, transform 0.1s;
}
#send-button:hover {
    background-color: var(--primary-hover-color);
}
#send-button:active {
    transform: scale(0.9);
}
#send-button:disabled {
    background-color: #d1d5db;
    color: #9ca3af;
    cursor: not-allowed;
}

#send-button svg {
    width: 24px;
    height: 24px;
}

.message-container {
    display: flex;
    flex-direction: column;
    max-width: 85%;
    opacity: 0;
    transform: translateY(10px);
    animation: slideIn 0.3s forwards;
}
.user-message-container {
    align-self: flex-end;
    align-items: flex-end;
}
.bot-message-container {
    align-self: flex-start;
    align-items: flex-start;
}

.message {
    padding: 10px 16px;
    border-radius: var(--border-radius);
    word-wrap: break-word;
    line-height: 1.5;
    font-size: 0.95rem;
}

.message a {
    color: var(--primary-color);
    text-decoration: underline;
}

.user-message a {
    color: var(--text-color-light);
    font-weight: 600;
}

.user-message {
    background-color: var(--user-message-bg);
    color: var(--text-color-light);
    border-bottom-right-radius: 4px;
}
.bot-message {
    background-color: var(--bot-message-bg);
    color: var(--text-color-dark);
    border-bottom-left-radius: 4px;
}

.timestamp {
    font-size: 0.7rem;
    color: #65676b;
    margin: 4px 10px 0;
}

.date-separator {
    align-self: center;
    background-color: #e9e9e9;
    color: #555;
    font-size: 0.75rem;
    font-weight: 500;
    padding: 4px 10px;
    border-radius: 12px;
    margin: 12px 0;
}

#typing-indicator {
    display: flex;
    align-items: center;
    padding: 10px 20px;
    opacity: 0;
    transform: translateY(10px);
    animation: slideIn 0.3s forwards;
}
#typing-indicator.hidden {
    display: none !important;
}
#typing-indicator .dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background-color: #b0b3b8;
    margin: 0 3px;
    animation: bounce 1.4s infinite both;
}
#typing-indicator .dot:nth-child(2) { animation-delay: -0.8s; }
#typing-indicator .dot:nth-child(3) { animation-delay: -0.4s; }

@keyframes bounce {
    0%, 80%, 100% { transform: scale(0); }
    40% { transform: scale(1.0); }
}

@keyframes slideIn {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

#open-chat-btn {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background-color: var(--primary-color);
    color: var(--text-color-light);
    cursor: pointer;
    box-shadow: 0 2px 8px rgba(0,0,0,0.2);
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    justify-content: center;
    align-items: center;
    border: none;
}
#open-chat-btn:hover {
    background-color: var(--primary-hover-color);
    box-shadow: 0 4px 12px rgba(0,0,0,0.25);
    transform: scale(1.05);
}

#chat-widget-container.open #open-chat-btn {
    opacity: 0;
    transform: scale(0.8);
    pointer-events: none;
}