/* ========================================================
   chat.css — Widget chat IA en bulle (bottom-right).
   ======================================================== */

.chat-fab {
    position: fixed;
    bottom: 1.2rem;
    right: 1.2rem;
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: var(--accent);
    color: var(--bg);
    border: 0;
    box-shadow: var(--shadow);
    cursor: pointer;
    z-index: 80;
    display: inline-grid;
    place-items: center;
    transition: transform .15s;
}
.chat-fab:hover { transform: scale(1.06); }
.chat-fab svg { width: 26px; height: 26px; }
.chat-fab .badge-new {
    position: absolute;
    top: 4px; right: 4px;
    width: 10px; height: 10px; border-radius: 50%;
    background: var(--warn);
    border: 2px solid var(--bg);
}

.chat-panel {
    position: fixed;
    bottom: 5.4rem;
    right: 1.2rem;
    width: min(380px, calc(100vw - 2rem));
    height: min(560px, calc(100vh - 7rem));
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    z-index: 79;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    transform-origin: bottom right;
    transform: scale(0.92);
    opacity: 0;
    pointer-events: none;
    transition: transform .2s ease, opacity .2s ease;
}
.chat-panel.is-open {
    transform: scale(1);
    opacity: 1;
    pointer-events: auto;
}

.chat-head {
    padding: 0.9rem 1rem;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.chat-head .who {
    display: flex; align-items: center; gap: 0.6rem;
    font-weight: 600; color: var(--text); font-size: 0.95rem;
}
.chat-head .who .dot {
    width: 8px; height: 8px; border-radius: 50%;
    background: var(--accent);
    box-shadow: 0 0 0 0 var(--accent-glow);
    animation: pulse 2.4s infinite;
}
.chat-close {
    color: var(--text-muted);
    font-size: 1.4rem;
    line-height: 1;
}
.chat-close:hover { color: var(--text); }

.chat-messages {
    flex: 1;
    padding: 1rem;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 0.7rem;
    background: var(--bg);
}
.msg {
    max-width: 85%;
    padding: 0.6rem 0.85rem;
    border-radius: 14px;
    font-size: 0.92rem;
    line-height: 1.5;
    white-space: pre-wrap;
    word-break: break-word;
}
.msg.assistant {
    background: var(--bg-card);
    color: var(--text);
    border: 1px solid var(--border);
    border-bottom-left-radius: 4px;
    align-self: flex-start;
}
.msg.user {
    background: var(--accent);
    color: var(--bg);
    border-bottom-right-radius: 4px;
    align-self: flex-end;
    font-weight: 500;
}
.msg.fallback {
    background: rgba(255,93,108,.10);
    border: 1px solid var(--danger);
    color: var(--danger);
    align-self: stretch;
    font-size: 0.88rem;
}
.msg .typing {
    display: inline-block;
    animation: blink 1.2s steps(1) infinite;
}

.chat-suggestions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
    padding: 0.5rem 1rem;
    border-top: 1px solid var(--border);
}
.chat-suggestion {
    font-size: 0.82rem;
    padding: 0.4rem 0.65rem;
    border-radius: 999px;
    border: 1px solid var(--border);
    color: var(--text-muted);
    transition: color .15s, border-color .15s;
}
.chat-suggestion:hover {
    color: var(--accent);
    border-color: var(--accent);
}

.chat-input-row {
    padding: 0.75rem;
    border-top: 1px solid var(--border);
    display: flex;
    gap: 0.5rem;
}
.chat-input {
    flex: 1;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 999px;
    padding: 0.65rem 1rem;
    color: var(--text);
    font-size: 0.95rem;
}
.chat-input:focus {
    outline: none;
    border-color: var(--accent);
}
.chat-send {
    width: 40px; height: 40px;
    border-radius: 50%;
    background: var(--accent);
    color: var(--bg);
    display: inline-grid;
    place-items: center;
}
.chat-send svg { width: 18px; height: 18px; }
.chat-send:disabled { opacity: 0.5; cursor: not-allowed; }