/* ============================================
   AI WIDGET CSS — Workshop Manager
   Chat bubble nổi góc màn hình
   ============================================ */

/* === FAB Button (nút tròn nổi) === */
.ai-fab-main {
    position: fixed;
    bottom: 28px;
    right: 28px;
    width: 58px;
    height: 58px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: white;
    font-size: 26px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 8px 24px rgba(138, 198, 75, 0.45);
    border: none;
    cursor: pointer;
    z-index: 9998;
    transition: all 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
    animation: fab-pulse 3s ease-in-out infinite;
}

.ai-fab-main:hover {
    transform: scale(1.1) translateY(-2px);
    box-shadow: 0 12px 32px rgba(138, 198, 75, 0.55);
}

.ai-fab-main.active {
    transform: rotate(15deg) scale(0.95);
    animation: none;
}

@keyframes fab-pulse {
    0%, 100% { box-shadow: 0 8px 24px rgba(138, 198, 75, 0.45); }
    50% { box-shadow: 0 8px 32px rgba(138, 198, 75, 0.7), 0 0 0 8px rgba(138, 198, 75, 0.1); }
}

.ai-fab-badge {
    position: absolute;
    top: 2px;
    right: 2px;
    width: 18px;
    height: 18px;
    background: var(--color-danger);
    border-radius: 50%;
    font-size: 10px;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 2px solid white;
}

/* Header button AI (inside topbar) */
.ai-fab-btn {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 8px 14px;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: white;
    border-radius: var(--radius-full);
    font-size: 14px;
    font-weight: 600;
    border: none;
    cursor: pointer;
    transition: all var(--transition-fast);
    box-shadow: 0 2px 8px rgba(138,198,75,0.3);
}

.ai-fab-btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 16px rgba(138,198,75,0.45);
}

.ai-fab-btn i {
    font-size: 18px;
}

.ai-fab-label {
    font-weight: 700;
    font-size: 13px;
}

/* === Widget Container === */
.ai-widget {
    position: fixed;
    bottom: 100px;
    right: 28px;
    width: 400px;
    max-height: 620px;
    background: var(--color-bg-surface);
    border-radius: 20px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.15), 0 0 0 1px var(--color-border);
    display: flex;
    flex-direction: column;
    z-index: 9999;
    overflow: hidden;
    animation: widget-open 0.35s cubic-bezier(0.34, 1.56, 0.64, 1) forwards;
    transform-origin: bottom right;
}

@keyframes widget-open {
    from {
        opacity: 0;
        transform: scale(0.7) translateY(20px);
    }
    to {
        opacity: 1;
        transform: scale(1) translateY(0);
    }
}

.ai-widget.closing {
    animation: widget-close 0.2s ease-in forwards;
}

@keyframes widget-close {
    from { opacity: 1; transform: scale(1); }
    to { opacity: 0; transform: scale(0.8) translateY(10px); }
}

/* === Header === */
.ai-widget-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 18px;
    background: linear-gradient(135deg, var(--color-primary-dark) 0%, #4a7c20 100%);
    color: white;
}

.ai-widget-header-left {
    display: flex;
    align-items: center;
    gap: 12px;
}

.ai-avatar-pulse {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(255,255,255,0.2);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    position: relative;
}

.ai-avatar-pulse::after {
    content: '';
    position: absolute;
    width: 10px;
    height: 10px;
    background: #4ade80;
    border-radius: 50%;
    bottom: 1px;
    right: 1px;
    border: 2px solid var(--color-primary-dark);
}

.ai-widget-title {
    font-size: 14px;
    font-weight: 700;
    color: white;
}

.ai-widget-status {
    font-size: 12px;
    color: rgba(255,255,255,0.8);
    display: flex;
    align-items: center;
    gap: 4px;
    margin-top: 2px;
}

.ai-status-dot {
    width: 6px;
    height: 6px;
    background: #4ade80;
    border-radius: 50%;
    animation: blink 2s ease-in-out infinite;
}

@keyframes blink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.4; }
}

.ai-status-dot.thinking {
    background: #fbbf24;
    animation: blink 0.6s ease-in-out infinite;
}

.ai-widget-header-right {
    display: flex;
    gap: 4px;
}

.ai-widget-btn {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: rgba(255,255,255,0.15);
    color: white;
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    transition: background 0.15s;
}

.ai-widget-btn:hover {
    background: rgba(255,255,255,0.3);
}

/* === Agent Tabs === */
.ai-agent-tabs {
    display: flex;
    gap: 0;
    background: var(--color-bg-base);
    border-bottom: 1px solid var(--color-border);
    overflow-x: auto;
    scrollbar-width: none;
}

.ai-agent-tabs::-webkit-scrollbar { display: none; }

.ai-tab {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 3px;
    padding: 10px 8px;
    font-size: 11px;
    font-weight: 600;
    color: var(--color-text-muted);
    background: none;
    border: none;
    border-bottom: 2px solid transparent;
    cursor: pointer;
    transition: all var(--transition-fast);
    white-space: nowrap;
}

.ai-tab i {
    font-size: 18px;
}

.ai-tab:hover {
    color: var(--color-primary-dark);
    background: var(--color-primary-light);
}

.ai-tab.active {
    color: var(--color-primary-dark);
    border-bottom-color: var(--color-primary);
    background: var(--color-bg-surface);
}

html[data-theme="dark"] .ai-tab.active {
    color: var(--color-primary);
}

/* === Messages === */
.ai-messages {
    flex: 1;
    overflow-y: auto;
    padding: 16px;
    display: flex;
    flex-direction: column;
    gap: 12px;
    min-height: 280px;
    max-height: 340px;
    scroll-behavior: smooth;
}

.ai-messages::-webkit-scrollbar {
    width: 4px;
}

.ai-messages::-webkit-scrollbar-track {
    background: transparent;
}

.ai-messages::-webkit-scrollbar-thumb {
    background: var(--color-border);
    border-radius: 2px;
}

/* Message bubbles */
.ai-msg {
    display: flex;
    gap: 8px;
    animation: msg-in 0.25s ease forwards;
}

@keyframes msg-in {
    from { opacity: 0; transform: translateY(8px); }
    to { opacity: 1; transform: translateY(0); }
}

.ai-msg.user {
    flex-direction: row-reverse;
}

.ai-msg-avatar {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: var(--color-primary-light);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    color: var(--color-primary-dark);
    flex-shrink: 0;
    margin-top: 2px;
}

.ai-msg.user .ai-msg-avatar {
    background: linear-gradient(135deg, var(--color-info), #6366f1);
    color: white;
}

.ai-msg-bubble {
    max-width: 80%;
    padding: 10px 14px;
    border-radius: 16px;
    font-size: 13.5px;
    line-height: 1.6;
    color: var(--color-text-main);
    background: var(--color-bg-base);
    border: 1px solid var(--color-border-light);
    white-space: pre-wrap;
    word-break: break-word;
}

.ai-msg.user .ai-msg-bubble {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: white;
    border: none;
    border-radius: 16px 16px 4px 16px;
}

.ai-msg.assistant .ai-msg-bubble {
    border-radius: 16px 16px 16px 4px;
}

/* Typing indicator */
.ai-typing {
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 12px 14px;
}

.ai-typing span {
    width: 7px;
    height: 7px;
    background: var(--color-primary);
    border-radius: 50%;
    animation: typing 1.2s ease-in-out infinite;
}

.ai-typing span:nth-child(2) { animation-delay: 0.2s; }
.ai-typing span:nth-child(3) { animation-delay: 0.4s; }

@keyframes typing {
    0%, 80%, 100% { transform: scale(0.8); opacity: 0.5; }
    40% { transform: scale(1.2); opacity: 1; }
}

/* Welcome / suggestion chips */
.ai-welcome {
    text-align: center;
    padding: 12px 8px;
    color: var(--color-text-muted);
    font-size: 13px;
}

.ai-welcome-icon {
    font-size: 36px;
    margin-bottom: 8px;
    display: block;
}

.ai-welcome h4 {
    font-size: 14px;
    font-weight: 700;
    color: var(--color-text-main);
    margin-bottom: 6px;
}

.ai-suggestions {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-top: 10px;
    justify-content: center;
}

.ai-suggestion-chip {
    background: var(--color-primary-light);
    color: var(--color-primary-dark);
    border: 1px solid rgba(138,198,75,0.3);
    border-radius: var(--radius-full);
    padding: 5px 12px;
    font-size: 12px;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
    white-space: nowrap;
}

.ai-suggestion-chip:hover {
    background: var(--color-primary);
    color: white;
    transform: translateY(-1px);
}

/* Quote card kết quả */
.ai-quote-card {
    background: var(--color-bg-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 14px;
    margin-top: 8px;
    font-size: 13px;
}

.ai-quote-card table {
    width: 100%;
    border-collapse: collapse;
    margin: 8px 0;
}

.ai-quote-card td {
    padding: 4px 8px;
    border-bottom: 1px solid var(--color-border-light);
}

.ai-quote-card .total-row td {
    font-weight: 700;
    color: var(--color-primary-dark);
    font-size: 14px;
}

/* Caption card 3 kênh */
.ai-caption-tabs {
    display: flex;
    gap: 4px;
    margin-bottom: 8px;
}

.ai-caption-tab {
    flex: 1;
    padding: 5px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--color-border);
    font-size: 11px;
    font-weight: 600;
    cursor: pointer;
    background: none;
    color: var(--color-text-muted);
    transition: all var(--transition-fast);
}

.ai-caption-tab.active {
    background: var(--color-primary-light);
    color: var(--color-primary-dark);
    border-color: var(--color-primary);
}

.ai-caption-content {
    font-size: 13px;
    line-height: 1.6;
    white-space: pre-wrap;
    background: var(--color-bg-base);
    border-radius: var(--radius-md);
    padding: 10px;
    max-height: 150px;
    overflow-y: auto;
    color: var(--color-text-main);
}

.ai-copy-btn {
    margin-top: 6px;
    display: flex;
    align-items: center;
    gap: 5px;
    font-size: 12px;
    color: var(--color-text-muted);
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px 8px;
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
}

.ai-copy-btn:hover {
    background: var(--color-bg-base);
    color: var(--color-primary-dark);
}

/* === Input Area === */
.ai-input-area {
    padding: 12px 16px;
    border-top: 1px solid var(--color-border-light);
    background: var(--color-bg-surface);
}

.ai-input-wrapper {
    display: flex;
    align-items: flex-end;
    gap: 8px;
    background: var(--color-bg-base);
    border: 1.5px solid var(--color-border);
    border-radius: 14px;
    padding: 10px 14px;
    transition: border-color var(--transition-fast);
}

.ai-input-wrapper:focus-within {
    border-color: var(--color-primary);
}

.ai-input {
    flex: 1;
    background: none;
    border: none;
    outline: none;
    font-family: var(--font-family-base);
    font-size: 13.5px;
    color: var(--color-text-main);
    resize: none;
    max-height: 100px;
    overflow-y: auto;
    line-height: 1.5;
}

.ai-input::placeholder {
    color: var(--color-text-muted);
}

.ai-send-btn {
    width: 34px;
    height: 34px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: white;
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 17px;
    flex-shrink: 0;
    transition: all var(--transition-fast);
}

.ai-send-btn:hover {
    transform: scale(1.1);
}

.ai-send-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
}

.ai-input-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 6px;
    padding: 0 2px;
}

.ai-powered-by {
    font-size: 11px;
    color: var(--color-text-muted);
}

.ai-powered-by strong {
    color: var(--color-primary-dark);
}

.ai-char-count {
    font-size: 11px;
    color: var(--color-text-muted);
}

/* Key setup warning */
.ai-key-warning {
    background: rgba(245,158,11,0.1);
    border: 1px solid rgba(245,158,11,0.3);
    border-radius: var(--radius-md);
    padding: 10px 12px;
    font-size: 12.5px;
    color: var(--color-warning);
    display: flex;
    align-items: flex-start;
    gap: 8px;
    margin: 8px 0;
}

.ai-key-warning i {
    font-size: 16px;
    flex-shrink: 0;
    margin-top: 1px;
}

/* Responsive */
@media (max-width: 480px) {
    .ai-widget {
        width: calc(100vw - 16px);
        right: 8px;
        bottom: 88px;
        max-height: 80vh;
    }

    .ai-fab-main {
        bottom: 20px;
        right: 20px;
    }
}