#mrib-chatbot-root {
    --mrib-primary: #0f6fbf;
    --mrib-bg: #ffffff;
    --mrib-text: #1f2937;
    --mrib-text-muted: #6b7280;
    --mrib-border: #e5e7eb;
    --mrib-user-bg: var(--mrib-primary);
    --mrib-user-text: #ffffff;
    --mrib-bot-bg: #f3f4f6;
    --mrib-bot-text: #1f2937;
    --mrib-system-bg: #fef3c7;
    --mrib-system-text: #92400e;
    --mrib-shadow: 0 8px 30px rgba(0,0,0,0.16);
    --mrib-radius: 16px;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

.mrib-bubble {
    position: fixed; right: 20px; bottom: 20px;
    width: 60px; height: 60px; border-radius: 50%;
    background: var(--mrib-primary); color: #fff; border: none;
    cursor: pointer; box-shadow: var(--mrib-shadow); z-index: 999998;
    transition: transform 0.2s ease, opacity 0.2s ease;
    display: flex; align-items: center; justify-content: center;
}
.mrib-bubble:hover { transform: scale(1.05); }
.mrib-bubble-icon { font-size: 28px; line-height: 1; }
.mrib-bubble-hidden { opacity: 0; pointer-events: none; transform: scale(0.5); }

.mrib-bubble-badge {
    position: absolute; top: 0; right: 0;
    min-width: 22px; height: 22px; padding: 0 6px;
    border-radius: 11px; background: #dc2626; color: #fff;
    font-size: 12px; font-weight: 700; display: none;
    align-items: center; justify-content: center;
    border: 2px solid #fff; box-sizing: border-box; line-height: 1;
}
.mrib-bubble-badge-active { display: inline-flex; animation: mrib-badge-pop 0.3s ease; }
@keyframes mrib-badge-pop {
    0% { transform: scale(0); }
    60% { transform: scale(1.2); }
    100% { transform: scale(1); }
}

.mrib-panel {
    position: fixed; right: 20px; bottom: 20px;
    width: 380px; max-width: calc(100vw - 40px);
    height: 560px; max-height: calc(100vh - 40px);
    background: var(--mrib-bg); border-radius: var(--mrib-radius);
    box-shadow: var(--mrib-shadow);
    display: flex; flex-direction: column; overflow: hidden;
    transform: translateY(20px) scale(0.95);
    opacity: 0; pointer-events: none;
    transition: transform 0.25s ease, opacity 0.25s ease;
    z-index: 999999; color: var(--mrib-text);
}
.mrib-panel-open { transform: translateY(0) scale(1); opacity: 1; pointer-events: auto; }

.mrib-header {
    background: var(--mrib-primary); color: #fff;
    padding: 14px 16px; display: flex; align-items: center;
    justify-content: space-between; flex-shrink: 0;
}
.mrib-header-title { display: flex; flex-direction: column; line-height: 1.2; }
.mrib-header-bot { font-weight: 600; font-size: 15px; }
.mrib-header-status { font-size: 12px; opacity: 0.85; margin-top: 2px; }
.mrib-header-close {
    background: transparent; border: none; color: #fff;
    font-size: 24px; line-height: 1; cursor: pointer;
    padding: 4px 8px; border-radius: 6px;
}
.mrib-header-close:hover { background: rgba(255,255,255,0.15); }

.mrib-messages {
    flex: 1; overflow-y: auto; padding: 16px;
    display: flex; flex-direction: column; gap: 8px;
    background: var(--mrib-bg);
}
.mrib-msg {
    max-width: 85%; padding: 10px 14px; border-radius: 16px;
    font-size: 14px; line-height: 1.45;
    word-wrap: break-word; white-space: pre-wrap;
    animation: mrib-fade-in 0.2s ease;
}
@keyframes mrib-fade-in {
    from { opacity: 0; transform: translateY(4px); }
    to { opacity: 1; transform: translateY(0); }
}
.mrib-msg-user { align-self: flex-end; background: var(--mrib-user-bg); color: var(--mrib-user-text); border-bottom-right-radius: 4px; }
.mrib-msg-bot { align-self: flex-start; background: var(--mrib-bot-bg); color: var(--mrib-bot-text); border-bottom-left-radius: 4px; }
.mrib-msg-admin { align-self: flex-start; background: #fef3c7; color: #78350f; border-bottom-left-radius: 4px; border-left: 3px solid #f59e0b; }
.mrib-msg-system { align-self: center; background: var(--mrib-system-bg); color: var(--mrib-system-text); text-align: center; font-size: 13px; max-width: 95%; }
.mrib-msg-meta { font-size: 11px; font-weight: 600; margin-bottom: 4px; opacity: 0.8; }

.mrib-typing { display: flex; gap: 4px; align-items: center; padding: 12px 14px; }
.mrib-dot {
    width: 8px; height: 8px; background: var(--mrib-text-muted);
    border-radius: 50%; animation: mrib-pulse 1.4s infinite ease-in-out;
}
.mrib-dot:nth-child(2) { animation-delay: 0.2s; }
.mrib-dot:nth-child(3) { animation-delay: 0.4s; }
@keyframes mrib-pulse {
    0%, 80%, 100% { transform: scale(0.7); opacity: 0.4; }
    40% { transform: scale(1); opacity: 1; }
}

.mrib-footer { padding: 8px 12px 4px; border-top: 1px solid var(--mrib-border); flex-shrink: 0; }
.mrib-human-btn {
    width: 100%; background: transparent; color: var(--mrib-primary);
    border: 1px solid var(--mrib-primary); border-radius: 20px;
    padding: 6px 12px; font-size: 13px; font-weight: 500; cursor: pointer;
}
.mrib-human-btn:hover { background: var(--mrib-primary); color: #fff; }

.mrib-input-form {
    display: flex; gap: 8px; padding: 8px 12px 12px;
    align-items: flex-end; flex-shrink: 0; background: var(--mrib-bg);
}
.mrib-input {
    flex: 1; border: 1px solid var(--mrib-border); border-radius: 18px;
    padding: 8px 14px; font-size: 14px; font-family: inherit;
    resize: none; line-height: 1.4;
    background: var(--mrib-bg); color: var(--mrib-text); outline: none;
}
.mrib-input:focus { border-color: var(--mrib-primary); }
.mrib-send {
    width: 36px; height: 36px; border-radius: 50%;
    background: var(--mrib-primary); color: #fff;
    border: none; cursor: pointer; font-size: 16px;
    flex-shrink: 0; display: flex; align-items: center; justify-content: center;
}

.mrib-human-form {
    background: #f9fafb; border: 1px solid var(--mrib-border);
    border-radius: 12px; padding: 16px;
    display: flex; flex-direction: column; gap: 10px;
    margin: 4px 0; align-self: stretch;
}
.mrib-human-form h3 { margin: 0; font-size: 15px; color: var(--mrib-text); }
.mrib-form-intro { margin: 0; font-size: 13px; color: var(--mrib-text-muted); }
.mrib-human-form label {
    display: flex; flex-direction: column; gap: 4px;
    font-size: 12px; color: var(--mrib-text-muted); font-weight: 500;
}
.mrib-human-form input,
.mrib-human-form textarea {
    border: 1px solid var(--mrib-border); border-radius: 6px;
    padding: 8px 10px; font-size: 14px; font-family: inherit;
    background: #fff; color: var(--mrib-text);
}
.mrib-human-form input:focus,
.mrib-human-form textarea:focus { outline: none; border-color: var(--mrib-primary); }
.mrib-honeypot { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.mrib-checkbox-row { display: flex; align-items: center; gap: 8px; font-size: 13px; color: var(--mrib-text); margin-top: 4px; }
.mrib-checkbox-row input[type="checkbox"] { width: 16px; height: 16px; margin: 0; }
.mrib-form-actions { display: flex; gap: 8px; justify-content: flex-end; margin-top: 4px; }
.mrib-btn-primary, .mrib-btn-secondary {
    border-radius: 6px; padding: 8px 14px;
    font-size: 13px; font-weight: 500;
    cursor: pointer; border: 1px solid transparent;
}
.mrib-btn-primary { background: var(--mrib-primary); color: #fff; }
.mrib-btn-primary:hover { opacity: 0.92; }
.mrib-btn-primary:disabled { opacity: 0.6; cursor: not-allowed; }
.mrib-btn-secondary { background: #fff; color: var(--mrib-text); border-color: var(--mrib-border); }
.mrib-btn-secondary:hover { background: #f3f4f6; }
.mrib-form-error { color: #dc2626; font-size: 13px; min-height: 18px; }

@media (max-width: 480px) {
    .mrib-panel {
        right: 0; bottom: 0; width: 100vw;
        max-width: 100vw; height: 100dvh; max-height: 100dvh;
        border-radius: 0;
    }
    .mrib-bubble { right: 16px; bottom: 16px; }
}