/* ==========================================================================
   ASK NEMO AI ASSISTANT («از NEMO بپرس») — STYLESHEET
   Apple-Minimalist × Refined Brutalist Engineering Assistant
   ========================================================================== */

/* --------------------------------------------------------------------------
   01. FLOATING LAUNCHER BUTTON
   -------------------------------------------------------------------------- */
.ask-nemo-launcher {
    position: fixed;
    bottom: calc(var(--space-24) + env(safe-area-inset-bottom, 0px));
    left: var(--space-24);
    z-index: var(--z-dropdown);
    display: inline-flex;
    align-items: center;
    gap: var(--space-10);
    padding: var(--space-10) var(--space-16);
    background: var(--color-bg-surface);
    border: 1px solid var(--color-border-strong);
    border-radius: var(--radius-full);
    color: var(--color-text-primary);
    font-family: var(--font-sans);
    font-size: var(--text-xs);
    font-weight: 600;
    cursor: pointer;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.25);
    transition: all var(--motion-interface);
    text-decoration: none;
    user-select: none;
    -webkit-user-select: none;
}

.ask-nemo-launcher:hover,
.ask-nemo-launcher:focus-visible {
    border-color: var(--color-accent);
    background: var(--color-bg-elevated);
    box-shadow: 0 6px 24px var(--color-accent-glow);
    transform: translateY(-2px);
    outline: none;
}

.ask-nemo-launcher-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 20px;
    height: 20px;
    color: var(--color-accent);
    flex-shrink: 0;
}

.ask-nemo-launcher-icon svg {
    width: 18px;
    height: 18px;
}

.ask-nemo-launcher-badge {
    font-family: var(--font-mono);
    font-size: var(--text-2xs);
    color: var(--color-accent);
    background: var(--color-accent-subtle);
    border: 1px solid var(--color-accent-border);
    padding: 1px 6px;
    border-radius: var(--radius-sm);
    letter-spacing: normal;
}

/* --------------------------------------------------------------------------
   02. BACKDROP & DRAWER CONTAINER
   -------------------------------------------------------------------------- */
.ask-nemo-backdrop {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.65);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    z-index: var(--z-modal);
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--motion-interface), visibility var(--motion-interface);
}

.ask-nemo-backdrop.active {
    opacity: 1;
    visibility: visible;
}

.ask-nemo-drawer {
    position: fixed;
    top: 0;
    bottom: 0;
    left: 0;
    width: 440px;
    max-width: 90vw;
    background: var(--color-bg-surface);
    border-right: 1px solid var(--color-border-structural);
    z-index: calc(var(--z-modal) + 1);
    display: flex;
    flex-direction: column;
    transform: translateX(-100%);
    transition: transform var(--motion-reveal);
    box-shadow: 8px 0 32px rgba(0, 0, 0, 0.4);
}

[dir="rtl"] .ask-nemo-drawer {
    left: auto;
    right: 0;
    border-right: none;
    border-left: 1px solid var(--color-border-structural);
    transform: translateX(100%);
}

.ask-nemo-drawer.active {
    transform: translateX(0);
}

/* --------------------------------------------------------------------------
   03. DRAWER HEADER
   -------------------------------------------------------------------------- */
.ask-nemo-header {
    padding: var(--space-20) var(--space-24);
    border-bottom: 1px solid var(--color-border-subtle);
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: var(--color-bg-elevated);
}

.ask-nemo-header-info {
    display: flex;
    align-items: center;
    gap: var(--space-12);
}

.ask-nemo-avatar {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-sm);
    background: var(--color-bg-base);
    border: 1px solid var(--color-accent-border);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-accent);
}

.ask-nemo-title {
    font-family: var(--font-sans);
    font-size: var(--text-sm);
    font-weight: 700;
    color: var(--color-text-primary);
    display: flex;
    align-items: center;
    gap: var(--space-6);
}

.ask-nemo-title .en-tag {
    font-family: var(--font-mono);
    font-size: var(--text-2xs);
    color: var(--color-text-muted);
}

.ask-nemo-subtitle {
    font-size: var(--text-xs);
    color: var(--color-text-secondary);
    margin-top: 2px;
}

.ask-nemo-close-btn {
    background: transparent;
    border: 1px solid var(--color-border-subtle);
    border-radius: var(--radius-control);
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-text-muted);
    cursor: pointer;
    transition: all var(--motion-micro);
}

.ask-nemo-close-btn:hover,
.ask-nemo-close-btn:focus-visible {
    color: var(--color-text-primary);
    border-color: var(--color-border-strong);
    background: var(--color-bg-subtle);
    outline: none;
}

/* --------------------------------------------------------------------------
   04. DRAWER BODY & MESSAGE THREAD
   -------------------------------------------------------------------------- */
.ask-nemo-body {
    flex: 1;
    overflow-y: auto;
    padding: var(--space-20) var(--space-24);
    display: flex;
    flex-direction: column;
    gap: var(--space-16);
    scroll-behavior: smooth;
    -webkit-overflow-scrolling: touch;
}

/* Starter Prompts */
.ask-nemo-starters {
    display: flex;
    flex-direction: column;
    gap: var(--space-8);
    margin-bottom: var(--space-12);
}

.ask-nemo-starters-label {
    font-size: var(--text-2xs);
    font-family: var(--font-mono);
    color: var(--color-text-muted);
    margin-bottom: var(--space-4);
}

.ask-nemo-starter-btn {
    text-align: right;
    padding: var(--space-10) var(--space-14);
    background: var(--color-bg-base);
    border: 1px solid var(--color-border-structural);
    border-radius: var(--radius-md);
    color: var(--color-text-secondary);
    font-family: var(--font-sans);
    font-size: var(--text-xs);
    line-height: 1.5;
    cursor: pointer;
    transition: all var(--motion-micro);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-8);
}

.ask-nemo-starter-btn:hover,
.ask-nemo-starter-btn:focus-visible {
    color: var(--color-accent);
    border-color: var(--color-accent-border);
    background: var(--color-accent-subtle);
    outline: none;
    transform: translateX(-3px);
}

[dir="ltr"] .ask-nemo-starter-btn:hover,
[dir="ltr"] .ask-nemo-starter-btn:focus-visible {
    transform: translateX(3px);
}

.ask-nemo-starter-btn .starter-arrow {
    color: var(--color-accent);
    font-family: var(--font-mono);
    font-size: var(--text-xs);
}

/* Message Rows */
.ask-nemo-msg {
    display: flex;
    flex-direction: column;
    gap: var(--space-8);
    max-width: 88%;
}

.ask-nemo-msg-user {
    align-self: flex-start;
}

[dir="rtl"] .ask-nemo-msg-user {
    align-self: flex-start;
}

.ask-nemo-msg-bot {
    align-self: flex-end;
    max-width: 94%;
}

[dir="rtl"] .ask-nemo-msg-bot {
    align-self: flex-end;
}

.ask-nemo-bubble {
    padding: var(--space-12) var(--space-16);
    border-radius: var(--radius-card);
    font-size: var(--text-xs);
    line-height: 1.75;
    word-break: break-word;
}

.ask-nemo-msg-user .ask-nemo-bubble {
    background: var(--color-accent-subtle);
    border: 1px solid var(--color-accent-border);
    color: var(--color-text-primary);
    border-bottom-left-radius: var(--radius-sm);
}

[dir="rtl"] .ask-nemo-msg-user .ask-nemo-bubble {
    border-bottom-left-radius: var(--radius-card);
    border-bottom-right-radius: var(--radius-sm);
}

.ask-nemo-msg-bot .ask-nemo-bubble {
    background: var(--color-bg-base);
    border: 1px solid var(--color-border-structural);
    color: var(--color-text-primary);
    border-bottom-right-radius: var(--radius-sm);
}

[dir="rtl"] .ask-nemo-msg-bot .ask-nemo-bubble {
    border-bottom-right-radius: var(--radius-card);
    border-bottom-left-radius: var(--radius-sm);
}

/* Action Chips */
.ask-nemo-actions-row {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-6);
    margin-top: var(--space-6);
}

.ask-nemo-action-chip {
    display: inline-flex;
    align-items: center;
    gap: var(--space-6);
    padding: var(--space-6) var(--space-12);
    background: var(--color-bg-elevated);
    border: 1px solid var(--color-border-strong);
    border-radius: var(--radius-chip);
    color: var(--color-accent);
    font-family: var(--font-sans);
    font-size: var(--text-2xs);
    font-weight: 600;
    text-decoration: none;
    transition: all var(--motion-micro);
    cursor: pointer;
}

.ask-nemo-action-chip:hover,
.ask-nemo-action-chip:focus-visible {
    background: var(--color-accent-subtle);
    border-color: var(--color-accent);
    transform: translateY(-1px);
    outline: none;
}

/* Loading State */
.ask-nemo-loading {
    display: flex;
    align-items: center;
    gap: var(--space-8);
    font-size: var(--text-2xs);
    color: var(--color-text-muted);
    font-family: var(--font-mono);
}

.ask-nemo-spinner {
    width: 12px;
    height: 12px;
    border: 2px solid var(--color-border-strong);
    border-top-color: var(--color-accent);
    border-radius: 50%;
    animation: askNemoSpin 0.8s linear infinite;
}

@keyframes askNemoSpin {
    to { transform: rotate(360deg); }
}

/* --------------------------------------------------------------------------
   05. DRAWER FOOTER & INPUT
   -------------------------------------------------------------------------- */
.ask-nemo-footer {
    padding: var(--space-16) var(--space-24);
    border-top: 1px solid var(--color-border-subtle);
    background: var(--color-bg-elevated);
    display: flex;
    flex-direction: column;
    gap: var(--space-8);
}

.ask-nemo-form {
    display: flex;
    align-items: center;
    gap: var(--space-8);
}

.ask-nemo-input {
    flex: 1;
    background: var(--color-bg-base);
    border: 1px solid var(--color-border-structural);
    border-radius: var(--radius-control);
    padding: var(--space-10) var(--space-14);
    color: var(--color-text-primary);
    font-family: var(--font-sans);
    font-size: var(--text-xs);
    line-height: 1.5;
    outline: none;
    transition: border-color var(--motion-micro);
}

.ask-nemo-input:focus {
    border-color: var(--color-accent);
    box-shadow: 0 0 0 2px var(--color-accent-subtle);
}

.ask-nemo-send-btn {
    background: var(--color-accent);
    color: #000000;
    border: none;
    border-radius: var(--radius-control);
    width: 38px;
    height: 38px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    font-weight: 700;
    transition: all var(--motion-micro);
    flex-shrink: 0;
}

.ask-nemo-send-btn:hover:not(:disabled) {
    background: #00ffaa;
    transform: scale(1.05);
}

.ask-nemo-send-btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

.ask-nemo-privacy-note {
    font-size: 0.65rem;
    color: var(--color-text-muted);
    text-align: center;
    line-height: 1.4;
}

/* --------------------------------------------------------------------------
   06. MOBILE RESPONSIVE (BOTTOM SHEET)
   -------------------------------------------------------------------------- */
@media (max-width: 768px) {
    .ask-nemo-launcher {
        bottom: calc(var(--space-16) + env(safe-area-inset-bottom, 0px));
        left: var(--space-16);
        padding: var(--space-8) var(--space-14);
    }

    .ask-nemo-drawer {
        top: auto;
        bottom: 0;
        left: 0;
        right: 0;
        width: 100%;
        max-width: 100%;
        height: 85vh;
        height: 85dvh;
        border-radius: var(--radius-module) var(--radius-module) 0 0;
        border-right: none;
        border-left: none;
        border-top: 1px solid var(--color-border-strong);
        transform: translateY(100%);
    }

    [dir="rtl"] .ask-nemo-drawer {
        transform: translateY(100%);
    }

    .ask-nemo-drawer.active {
        transform: translateY(0);
    }
}