/* MFM Lena Chatbot v2.0 */
.mfmlena-widget {
    font-family: system-ui, -apple-system, sans-serif;
    --lena-primary: #00a19a;
    --lena-soft: #34d399;
    --lena-on: #022c22;
    --lena-bg: #020617;
    --lena-surface: #0f172a;
    --lena-border: rgba(148,163,184,0.45);
    --lena-text: #e5e7eb;
    --lena-muted: #9ca3af;
    --lena-radius: 16px;
}

/* Launcher */
.mfmlena-launcher {
    position: fixed;
    bottom: 20px;
    right: 20px;
    z-index: 999999;
    display: flex;
    gap: 10px;
    flex-direction: row-reverse;
    align-items: flex-end;
}

.mfmlena-launcher-btn {
    width: 56px;
    height: 56px;
    border-radius: 999px;
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--lena-primary), var(--lena-soft));
    color: var(--lena-on);
    box-shadow: 0 8px 24px rgba(0,161,154,0.4);
    transition: transform 0.2s, box-shadow 0.2s;
    flex-shrink: 0;
}
.mfmlena-launcher-btn:hover {
    transform: scale(1.08);
    box-shadow: 0 10px 30px rgba(0,161,154,0.55);
}

/* Teaser */
.mfmlena-teaser {
    max-width: 250px;
    padding: 12px 14px;
    border-radius: 14px;
    background: var(--lena-bg);
    color: var(--lena-text);
    border: 1px solid var(--lena-border);
    font-size: 13px;
    line-height: 1.5;
    box-shadow: 0 12px 30px rgba(15,23,42,0.85);
    opacity: 0;
    transform: translateX(16px);
    pointer-events: none;
    transition: opacity 0.3s, transform 0.3s;
}
.mfmlena-teaser.is-visible {
    opacity: 1;
    transform: translateX(0);
    pointer-events: auto;
}
.mfmlena-teaser::after {
    content: "";
    position: absolute;
    right: -6px;
    bottom: 16px;
    width: 10px;
    height: 10px;
    background: var(--lena-bg);
    border-right: 1px solid var(--lena-border);
    border-bottom: 1px solid var(--lena-border);
    transform: rotate(-45deg);
}
.mfmlena-teaser-cta {
    margin-top: 8px;
    background: var(--lena-primary);
    color: var(--lena-on);
    border: none;
    padding: 5px 12px;
    border-radius: 99px;
    cursor: pointer;
    font-size: 12px;
    font-weight: 600;
}

/* Panel */
.mfmlena-panel {
    position: fixed;
    right: 24px;
    bottom: 90px;
    width: 400px;
    max-width: calc(100vw - 32px);
    max-height: 72vh;
    background: var(--lena-bg);
    border: 1px solid var(--lena-border);
    border-radius: var(--lena-radius);
    display: none;
    flex-direction: column;
    box-shadow: 0 20px 50px rgba(0,0,0,0.6);
    z-index: 999998;
    overflow: hidden;
}
.mfmlena-panel.is-open {
    display: flex;
}

/* Header */
.mfmlena-header {
    padding: 16px 18px 12px;
    background: linear-gradient(135deg, rgba(0,161,154,0.2), transparent);
    border-bottom: 1px solid var(--lena-border);
    position: relative;
}
.mfmlena-title {
    margin: 0 70px 2px 0;
    font-size: 17px;
    font-weight: 700;
    color: var(--lena-text);
}
.mfmlena-subtitle {
    margin: 0;
    font-size: 12px;
    color: var(--lena-muted);
}
.mfmlena-header-btns {
    position: absolute;
    top: 12px;
    right: 14px;
    display: flex;
    gap: 6px;
}
.mfmlena-btn-icon {
    background: none;
    border: none;
    color: var(--lena-muted);
    cursor: pointer;
    padding: 4px;
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: color 0.15s, background 0.15s;
}
.mfmlena-btn-icon:hover {
    color: var(--lena-text);
    background: rgba(255,255,255,0.08);
}

/* Messages */
.mfmlena-messages {
    padding: 14px;
    overflow-y: auto;
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 10px;
    min-height: 180px;
}

.mfmlena-msg {
    max-width: 88%;
    font-size: 14px;
    line-height: 1.55;
    padding: 10px 14px;
    border-radius: 14px;
    word-break: break-word;
}
.mfmlena-msg a {
    color: var(--lena-soft);
    text-decoration: underline;
}
.mfmlena-msg-assistant {
    background: var(--lena-surface);
    border: 1px solid var(--lena-border);
    color: var(--lena-text);
    align-self: flex-start;
    border-bottom-left-radius: 4px;
}
.mfmlena-msg-user {
    background: var(--lena-primary);
    color: var(--lena-on);
    align-self: flex-end;
    border-bottom-right-radius: 4px;
}

/* Typing indicator */
.mfmlena-typing {
    display: flex;
    gap: 4px;
    padding: 12px 16px;
    align-self: flex-start;
    background: var(--lena-surface);
    border: 1px solid var(--lena-border);
    border-radius: 14px;
    border-bottom-left-radius: 4px;
}
.mfmlena-typing span {
    width: 7px;
    height: 7px;
    background: var(--lena-muted);
    border-radius: 50%;
    animation: mfmlena-bounce 1.4s infinite;
}
.mfmlena-typing span:nth-child(2) { animation-delay: 0.2s; }
.mfmlena-typing span:nth-child(3) { animation-delay: 0.4s; }
@keyframes mfmlena-bounce {
    0%, 80%, 100% { transform: translateY(0); }
    40% { transform: translateY(-5px); }
}

/* Input bar */
.mfmlena-inputbar {
    display: flex;
    padding: 10px 12px;
    gap: 8px;
    border-top: 1px solid var(--lena-border);
    background: var(--lena-bg);
}
.mfmlena-input {
    flex: 1;
    padding: 9px 14px;
    border-radius: 999px;
    border: 1px solid var(--lena-border);
    background: var(--lena-surface);
    color: var(--lena-text);
    resize: none;
    font-size: 14px;
    font-family: inherit;
    line-height: 1.4;
    max-height: 100px;
    overflow-y: auto;
}
.mfmlena-input::placeholder { color: #6b7280; }
.mfmlena-input:focus {
    outline: none;
    border-color: var(--lena-primary);
}
.mfmlena-send {
    border: none;
    border-radius: 999px;
    background: linear-gradient(135deg, var(--lena-primary), var(--lena-soft));
    color: var(--lena-on);
    padding: 0 14px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: opacity 0.15s;
    flex-shrink: 0;
}
.mfmlena-send:disabled { opacity: 0.4; cursor: default; }

/* Error message */
.mfmlena-error {
    padding: 8px 12px;
    background: rgba(239,68,68,0.15);
    border: 1px solid rgba(239,68,68,0.3);
    border-radius: 10px;
    color: #fca5a5;
    font-size: 13px;
    align-self: center;
    text-align: center;
}

/* Mobile fullscreen */
@media (max-width: 640px) {
    .mfmlena-panel {
        right: 0;
        left: 0;
        bottom: 0;
        top: 0;
        width: 100%;
        max-height: 100%;
        border-radius: 0;
    }
    .mfmlena-header { border-radius: 0; }
    .mfmlena-inputbar { border-radius: 0; padding-bottom: env(safe-area-inset-bottom, 10px); }
}