/* Explain: CSS for the floating AI assistant and chat panel. */
/* ===== Assistant de discussion & WhatsApp (dock flottant) ===== */
.assistant-dock {
    position: fixed;
    right: 1rem;
    bottom: calc(5.5rem + env(safe-area-inset-bottom));
    z-index: 60;
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 0.6rem;
}

body.assistant-open .assistant-dock {
    display: none;
}

.assistant-fab {
    display: inline-flex;
    min-height: 3.25rem;
    align-items: center;
    gap: 0.6rem;
    border-radius: 999px;
    padding: 0 0.95rem;
    color: #ffffff;
    font-size: 1.35rem;
    box-shadow: 0 18px 40px rgba(31, 46, 35, 0.28);
    transition: transform 300ms ease, box-shadow 300ms ease, background 300ms ease;
}

.assistant-fab:hover,
.assistant-fab:focus-visible {
    transform: translateY(-3px);
    box-shadow: 0 22px 50px rgba(31, 46, 35, 0.34);
}

.assistant-fab-text {
    max-width: 0;
    overflow: hidden;
    white-space: nowrap;
    font-size: 0.82rem;
    font-weight: 700;
    letter-spacing: 0.04em;
    transition: max-width 300ms ease;
}

.assistant-fab:hover .assistant-fab-text,
.assistant-fab:focus-visible .assistant-fab-text {
    max-width: 8rem;
}

.assistant-fab-whatsapp {
    background: #25d366;
}

.assistant-fab-chat {
    background: var(--primary-color);
}

.assistant-panel {
    position: fixed;
    right: 0.75rem;
    left: 0.75rem;
    bottom: calc(0.75rem + env(safe-area-inset-bottom));
    z-index: 61;
    display: none;
    flex-direction: column;
    max-height: 82vh;
    overflow: hidden;
    border: 1px solid var(--glass-border);
    border-radius: 1.8rem;
    background: var(--background-color);
    box-shadow: 0 30px 80px rgba(31, 46, 35, 0.28);
}

.assistant-panel.is-open {
    display: flex;
}

.assistant-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding: 1rem 1.1rem;
    background: var(--primary-color);
    color: #ffffff;
}

.assistant-avatar {
    display: inline-flex;
    height: 2.5rem;
    width: 2.5rem;
    flex-shrink: 0;
    align-items: center;
    justify-content: center;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.2);
    font-size: 1.1rem;
}

.assistant-title {
    font-size: 0.95rem;
    font-weight: 700;
}

.assistant-subtitle {
    font-size: 0.7rem;
    opacity: 0.85;
}

.assistant-close {
    display: inline-flex;
    height: 2.25rem;
    width: 2.25rem;
    flex-shrink: 0;
    align-items: center;
    justify-content: center;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.16);
    color: #ffffff;
    cursor: pointer;
    transition: background 300ms ease;
}

.assistant-close:hover {
    background: rgba(255, 255, 255, 0.32);
}

.assistant-thread {
    display: flex;
    flex: 1;
    flex-direction: column;
    gap: 0.75rem;
    overflow-y: auto;
    padding: 1rem;
}

.assistant-msg {
    max-width: 88%;
    border-radius: 1.2rem;
    padding: 0.7rem 0.95rem;
    font-size: 0.87rem;
    line-height: 1.6;
}

.assistant-msg-bot {
    align-self: flex-start;
    border-bottom-left-radius: 0.4rem;
    background: var(--surface-color);
    color: var(--text-color);
}

.assistant-msg-user {
    align-self: flex-end;
    border-bottom-right-radius: 0.4rem;
    background: var(--primary-color);
    color: #ffffff;
}

.assistant-chips {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
}

.assistant-chip {
    border: 1px solid var(--glass-border);
    border-radius: 999px;
    background: var(--glass-bg);
    padding: 0.45rem 0.85rem;
    color: var(--text-color);
    font-size: 0.76rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 300ms ease;
}

.assistant-chip:hover {
    border-color: var(--accent-color);
    color: var(--accent-color);
}

.assistant-typing {
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
}

.assistant-typing span {
    height: 0.45rem;
    width: 0.45rem;
    border-radius: 999px;
    background: var(--text-muted);
    animation: assistant-bounce 1.2s infinite ease-in-out;
}

.assistant-typing span:nth-child(2) {
    animation-delay: 0.15s;
}

.assistant-typing span:nth-child(3) {
    animation-delay: 0.3s;
}

@keyframes assistant-bounce {
    0%, 80%, 100% {
        transform: translateY(0);
        opacity: 0.5;
    }
    40% {
        transform: translateY(-0.3rem);
        opacity: 1;
    }
}

.assistant-form {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    border-top: 1px solid var(--glass-border);
    padding: 0.7rem;
}

.assistant-input {
    flex: 1;
    min-height: 2.75rem;
    border: 1px solid var(--glass-border);
    border-radius: 999px;
    background: var(--field-bg);
    padding: 0 1rem;
    color: var(--text-color);
    font-size: 0.87rem;
}

.assistant-input:focus {
    outline: 2px solid var(--accent-color);
    outline-offset: -1px;
}

.assistant-send {
    display: inline-flex;
    height: 2.75rem;
    width: 2.75rem;
    flex-shrink: 0;
    align-items: center;
    justify-content: center;
    border-radius: 999px;
    background: var(--button-color);
    color: var(--text-color);
    cursor: pointer;
    transition: background 300ms ease;
}

.assistant-send:hover {
    background: var(--primary-hover);
}

.assistant-foot {
    padding: 0 0.95rem 0.85rem;
    color: var(--text-muted);
    font-size: 0.68rem;
    line-height: 1.5;
}

.assistant-foot a {
    color: var(--accent-color);
    font-weight: 700;
}

@media (min-width: 768px) {
    .assistant-dock {
        right: 1.5rem;
        bottom: 1.5rem;
    }

    .assistant-panel {
        left: auto;
        right: 1.5rem;
        bottom: 1.5rem;
        width: min(100% - 2rem, 24rem);
        max-height: min(78vh, 34rem);
    }
}