.ia-agente-widget {
    position: fixed;
    right: 20px;
    bottom: 20px;
    z-index: 9999;
    font-family: "Trebuchet MS", Arial, sans-serif;
    --ia-primary: #0f766e;
    --ia-primary-dark: #0b5d57;
    --ia-panel-bg: #f7f7f5;
    --ia-text: #1f2937;
    --ia-header-bg: linear-gradient(120deg, #0f766e, #0ea5a4);
    --ia-assistant-bg: #ffffff;
    --ia-input-bg: #ffffff;
    --ia-border: #e5e7eb;
}

.ia-agente-theme-dark {
    --ia-primary: #22c1b2;
    --ia-primary-dark: #1aa093;
    --ia-panel-bg: #111827;
    --ia-text: #f9fafb;
    --ia-header-bg: linear-gradient(120deg, #0f766e, #0b5d57);
    --ia-assistant-bg: #1f2937;
    --ia-input-bg: #1f2937;
    --ia-border: #374151;
}

.ia-agente-theme-dark .ia-agente-toggle {
    background: var(--ia-panel-bg);
}

.ia-agente-toggle {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    border: 2px solid var(--ia-primary);
    background: #ffffff;
    color: var(--ia-primary);
    font-weight: bold;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: 0 10px 24px rgba(0, 0, 0, 0.2);
    overflow: hidden;
}

.ia-agente-toggle-icon {
    width: 26px;
    height: 26px;
    fill: none;
    stroke: var(--ia-primary);
    stroke-width: 1.8;
    stroke-linecap: round;
    stroke-linejoin: round;
}

.ia-agente-toggle-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.ia-agente-sr {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.ia-agente-toggle:focus {
    outline: 2px solid var(--ia-primary);
    outline-offset: 2px;
}

.ia-agente-panel {
    position: absolute;
    right: 0;
    bottom: 70px;
    width: 360px;
    max-height: 520px;
    background: var(--ia-panel-bg);
    color: var(--ia-text);
    border-radius: 16px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    opacity: 0;
    pointer-events: none;
    transform: translateY(10px);
    transition: opacity 0.2s ease, transform 0.2s ease;
}

.ia-agente-panel.is-open {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
}

.ia-agente-header {
    background: var(--ia-header-bg);
    color: #fff;
    padding: 14px 16px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.ia-agente-title {
    font-size: 15px;
    font-weight: bold;
    display: flex;
    align-items: center;
    gap: 8px;
}

.ia-agente-header-icon {
    width: 26px;
    height: 26px;
    border-radius: 50%;
    overflow: hidden;
    flex-shrink: 0;
    background: #ffffff;
}

.ia-agente-header-icon img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.ia-agente-close {
    border: none;
    background: transparent;
    color: #fff;
    font-size: 22px;
    line-height: 1;
    cursor: pointer;
}

.ia-agente-close-icon {
    width: 18px;
    height: 18px;
    fill: none;
    stroke: currentColor;
    stroke-width: 2;
    stroke-linecap: round;
}

.ia-agente-messages {
    padding: 16px;
    background: var(--ia-panel-bg);
    overflow-y: auto;
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.ia-agente-message {
    max-width: 80%;
    padding: 10px 12px;
    border-radius: 14px;
    font-size: 14px;
    line-height: 1.4;
    word-wrap: break-word;
    white-space: pre-wrap;
}

.ia-agente-user {
    align-self: flex-end;
    background: var(--ia-primary);
    color: #fff;
    border-bottom-right-radius: 4px;
}

.ia-agente-assistant {
    align-self: flex-start;
    background: var(--ia-assistant-bg);
    color: var(--ia-text);
    border-bottom-left-radius: 4px;
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.08);
}

.ia-agente-typing {
    opacity: 0.7;
    font-style: italic;
}

.ia-agente-input {
    display: flex;
    gap: 8px;
    padding: 12px;
    border-top: 1px solid var(--ia-border);
    background: var(--ia-input-bg);
}

.ia-agente-input textarea {
    flex: 1;
    resize: none;
    border: 1px solid var(--ia-border);
    border-radius: 10px;
    padding: 8px 10px;
    font-size: 14px;
    font-family: inherit;
    line-height: 1.4;
    background: var(--ia-input-bg);
    color: var(--ia-text);
}

.ia-agente-input button {
    border: none;
    background: var(--ia-primary);
    color: #fff;
    padding: 10px 14px;
    border-radius: 10px;
    cursor: pointer;
    font-size: 14px;
}

.ia-agente-input button:hover {
    background: var(--ia-primary-dark);
}

@media (max-width: 600px) {
    .ia-agente-widget {
        right: 12px;
        bottom: 12px;
        left: 12px;
    }

    .ia-agente-panel {
        right: 0;
        left: 0;
        width: 100%;
        max-height: 80vh;
    }
}