/* ============================================================================
   AI CHAT STYLES
   ============================================================================
   Purpose: Styles for AI Chat feature components
   Created: 2026-01-27
   ============================================================================ */

/* DEMO: Hide AI chat - Remove after demo */
/* .ai-chat-button, .ai-chat-panel { display: none !important; } */

/* ============================================================================
   CSS Variables - Light Mode (Default)
   ============================================================================ */
:root {
    --chat-primary: #0066B3;
    --chat-primary-light: #E8F4FD;
    --chat-primary-dark: #004A82;
    --chat-bg: #ffffff;
    --chat-bg-secondary: #f8fafc;
    --chat-border: #e2e8f0;
    --chat-text: #1e293b;
    --chat-text-secondary: #64748b;
    --chat-user-bg: #0066B3;
    --chat-user-text: #ffffff;
    --chat-assistant-bg: #ffffff;
    --chat-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
    --chat-shadow-hover: 0 6px 24px rgba(0, 0, 0, 0.2);
    --chat-radius: 12px;
    --chat-radius-sm: 8px;
    --chat-transition: all 0.2s ease;
    --chat-input-bg: #ffffff;
    --chat-header-bg: linear-gradient(135deg, var(--chat-primary), var(--chat-primary-dark));
    --chat-code-bg: #f1f5f9;
    --chat-table-header-bg: #f8fafc;
    --chat-table-hover-bg: #E8F4FD;
}

/* ============================================================================
   CSS Variables - Dark Mode
   ============================================================================ */
[data-theme="dark"] {
    --chat-primary: #60a5fa;
    --chat-primary-light: rgba(96, 165, 250, 0.15);
    --chat-primary-dark: #3b82f6;
    --chat-bg: #1e293b;
    --chat-bg-secondary: #0f172a;
    --chat-border: #334155;
    --chat-text: #f1f5f9;
    --chat-text-secondary: #94a3b8;
    --chat-user-bg: #3b82f6;
    --chat-user-text: #ffffff;
    --chat-assistant-bg: #1e293b;
    --chat-shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
    --chat-shadow-hover: 0 6px 24px rgba(0, 0, 0, 0.5);
    --chat-input-bg: #0f172a;
    --chat-header-bg: linear-gradient(135deg, #1e3a5f, #0f172a);
    --chat-code-bg: #0f172a;
    --chat-table-header-bg: #0f172a;
    --chat-table-hover-bg: rgba(96, 165, 250, 0.1);
}

/* ============================================================================
   Floating Chat Button - Beautiful & Striking Design
   ============================================================================ */
.ai-chat-button {
    position: fixed;
    bottom: 24px;
    right: 24px;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 50%, #f093fb 100%);
    background-size: 200% 200%;
    color: white;
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow:
        0 4px 15px rgba(102, 126, 234, 0.4),
        0 8px 30px rgba(118, 75, 162, 0.3),
        inset 0 1px 0 rgba(255, 255, 255, 0.2);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 1000;
    animation: gradient-shift 3s ease infinite, float 3s ease-in-out infinite;
}

@keyframes gradient-shift {
    0%, 100% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-4px); }
}

.ai-chat-button::before {
    content: '';
    position: absolute;
    top: -3px;
    left: -3px;
    right: -3px;
    bottom: -3px;
    border-radius: 50%;
    background: linear-gradient(135deg, #667eea, #764ba2, #f093fb, #667eea);
    background-size: 400% 400%;
    z-index: -1;
    opacity: 0;
    animation: rotate-gradient 3s linear infinite;
    transition: opacity 0.3s ease;
}

@keyframes rotate-gradient {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

.ai-chat-button:hover {
    transform: scale(1.1) translateY(-2px);
    box-shadow:
        0 8px 25px rgba(102, 126, 234, 0.5),
        0 12px 40px rgba(118, 75, 162, 0.4),
        inset 0 1px 0 rgba(255, 255, 255, 0.3);
    animation: gradient-shift 3s ease infinite;
}

.ai-chat-button:hover::before {
    opacity: 0.6;
}

.ai-chat-button:active {
    transform: scale(1.05);
}

.ai-chat-button i {
    font-size: 1.5rem;
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.2));
}

.ai-chat-button .chat-icon-home {
    width: 28px;
    height: 28px;
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.2));
}

/* Animated sparkle effect on the home icon */
.ai-chat-button .chat-icon-home circle {
    animation: sparkle 2s ease-in-out infinite;
}

@keyframes sparkle {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.6; }
}

/* Notification badge */
.ai-chat-button .badge {
    position: absolute;
    top: -4px;
    right: -4px;
    background: linear-gradient(135deg, #ff6b6b, #ee5a5a);
    color: white;
    font-size: 0.7rem;
    font-weight: 600;
    padding: 3px 7px;
    border-radius: 10px;
    min-width: 18px;
    text-align: center;
    box-shadow: 0 2px 8px rgba(238, 90, 90, 0.4);
    border: 2px solid white;
}

/* Pulse animation for new messages */
.ai-chat-button.has-notification {
    animation: gradient-shift 3s ease infinite, notification-pulse 1.5s infinite;
}

@keyframes notification-pulse {
    0% {
        box-shadow:
            0 4px 15px rgba(102, 126, 234, 0.4),
            0 0 0 0 rgba(118, 75, 162, 0.6);
    }
    70% {
        box-shadow:
            0 4px 15px rgba(102, 126, 234, 0.4),
            0 0 0 15px rgba(118, 75, 162, 0);
    }
    100% {
        box-shadow:
            0 4px 15px rgba(102, 126, 234, 0.4),
            0 0 0 0 rgba(118, 75, 162, 0);
    }
}

/* Sparkle decorations around button */
.ai-chat-button::after {
    content: '✨';
    position: absolute;
    top: -8px;
    right: -8px;
    font-size: 14px;
    animation: twinkle 2s ease-in-out infinite;
    pointer-events: none;
}

@keyframes twinkle {
    0%, 100% {
        opacity: 1;
        transform: scale(1) rotate(0deg);
    }
    50% {
        opacity: 0.5;
        transform: scale(0.8) rotate(20deg);
    }
}

/* ============================================================================
   Chat Panel Container
   ============================================================================ */
.ai-chat-panel {
    position: fixed;
    bottom: 90px;
    right: 24px;
    width: 420px;
    /* Fixed height approach - stable across different content states */
    height: 600px;
    max-height: calc(100vh - 110px);
    max-height: calc(100dvh - 110px); /* Modern browsers */
    background: var(--chat-bg);
    border-radius: var(--chat-radius);
    box-shadow: var(--chat-shadow);
    display: flex;
    flex-direction: column;
    z-index: 1001;
    overflow: hidden;
    transform: translateY(20px);
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.ai-chat-panel.open {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
}

/* Maximized state */
.ai-chat-panel.maximized {
    bottom: 20px;
    right: 20px;
    left: 20px;
    top: 20px;
    width: auto;
    height: auto;
    max-height: none;
    min-height: auto;
    border-radius: var(--chat-radius);
}

.ai-chat-panel.maximized .ai-chat-messages {
    padding: 24px;
}

.ai-chat-panel.maximized .ai-chat-message {
    max-width: 70%;
}

.ai-chat-panel.maximized .ai-chat-suggestions-grid {
    justify-content: center;
}

.ai-chat-panel.maximized .ai-chat-empty {
    padding: 48px;
}

.ai-chat-panel.maximized .ai-chat-empty-icon {
    width: 80px;
    height: 80px;
    font-size: 2rem;
}

.ai-chat-panel.maximized .ai-chat-empty h3 {
    font-size: 1.5rem;
}

.ai-chat-panel.maximized .ai-chat-empty p {
    font-size: 1rem;
    max-width: 500px;
}

/* ============================================================================
   Chat Header
   ============================================================================ */
.ai-chat-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 20px;
    background: var(--chat-header-bg);
    color: white;
    flex-shrink: 0;
}

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

.ai-chat-header-avatar {
    width: 34px;
    height: 34px;
    border-radius: 50%;
    background: var(--chat-primary-light);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.ai-chat-header-avatar i {
    color: var(--chat-primary);
}

.ai-chat-header-info h3 {
    margin: 0;
    font-size: 1rem;
    font-weight: 600;
}

.ai-chat-header-info span {
    font-size: 0.75rem;
    opacity: 0.9;
}

.ai-chat-header-actions {
    display: flex;
    gap: 8px;
}

.ai-chat-header-btn {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    border: none;
    background: rgba(255, 255, 255, 0.1);
    color: white;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--chat-transition);
}

.ai-chat-header-btn:hover {
    background: rgba(255, 255, 255, 0.2);
}

/* ============================================================================
   Chat Messages Area
   ============================================================================ */
.ai-chat-messages {
    flex: 1;
    overflow-y: auto;
    padding: 16px;
    display: flex;
    flex-direction: column;
    gap: 16px;
    background: var(--chat-bg-secondary);
}

.ai-chat-messages::-webkit-scrollbar {
    width: 6px;
}

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

.ai-chat-messages::-webkit-scrollbar-thumb {
    background: var(--chat-border);
    border-radius: 3px;
}

.ai-chat-messages::-webkit-scrollbar-thumb:hover {
    background: var(--chat-text-secondary);
}

/* ============================================================================
   Individual Message
   ============================================================================ */
.ai-chat-message {
    display: flex;
    gap: 10px;
    max-width: 90%;
    animation: message-fade-in 0.3s ease;
}

@keyframes message-fade-in {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* User message - right aligned */
.ai-chat-message.user {
    align-self: flex-end;
    flex-direction: row-reverse;
}

/* Assistant message - left aligned */
.ai-chat-message.assistant {
    align-self: flex-start;
}

.ai-chat-message-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.875rem;
    flex-shrink: 0;
}

.ai-chat-message.user .ai-chat-message-avatar {
    background: var(--chat-primary);
    color: white;
}

.ai-chat-message.assistant .ai-chat-message-avatar {
    background: var(--chat-primary-light);
    color: var(--chat-primary);
}

.ai-chat-message-content {
    padding: 12px 16px;
    border-radius: var(--chat-radius);
    line-height: 1.5;
    font-size: 0.9rem;
}

.ai-chat-message.user .ai-chat-message-content {
    background: var(--chat-user-bg);
    color: var(--chat-user-text);
    border-bottom-right-radius: 4px;
}

.ai-chat-message.assistant .ai-chat-message-content {
    background: var(--chat-assistant-bg);
    color: var(--chat-text);
    border: 1px solid var(--chat-border);
    border-bottom-left-radius: 4px;
}

/* ============================================================================
   Markdown Content Styling
   ============================================================================ */
.ai-chat-message-content h2 {
    font-size: 0.95rem;
    font-weight: 600;
    margin: 20px 0 10px 0;
    padding-bottom: 4px;
    border-bottom: 1px solid var(--chat-border);
    color: var(--chat-primary);
}

.ai-chat-message-content h2:first-child {
    margin-top: 0;
}

.ai-chat-message-content h3 {
    font-size: 0.85rem;
    font-weight: 600;
    margin: 18px 0 8px 0;
    color: var(--chat-text);
}

.ai-chat-message-content h3:first-child {
    margin-top: 0;
}

.ai-chat-message-content p {
    margin: 6px 0;
}

.ai-chat-message-content ul,
.ai-chat-message-content ol {
    margin: 6px 0;
    padding-left: 18px;
}

.ai-chat-message-content li {
    margin: 2px 0;
}

/* Remove stray line breaks between list items */
.ai-chat-message-content ul br,
.ai-chat-message-content ol br {
    display: none;
}

/* Spacing around tables */
.ai-chat-message-content table {
    margin-top: 10px;
    margin-bottom: 14px;
}

.ai-chat-message-content strong {
    font-weight: 600;
}

.ai-chat-message-content em {
    font-style: italic;
    color: var(--chat-text-secondary);
    font-size: 0.85em;
}

.ai-chat-message-content code {
    background: var(--chat-code-bg);
    padding: 2px 6px;
    border-radius: 4px;
    font-size: 0.85em;
    font-family: 'Consolas', monospace;
    color: var(--chat-text);
}

/* Remove excessive spacing from br tags */
.ai-chat-message-content br + br {
    display: none;
}

/* Tables in messages */
.ai-chat-message-content table {
    width: 100%;
    border-collapse: collapse;
    margin: 6px 0;
    font-size: 0.8rem;
}

.ai-chat-message-content h2 + table,
.ai-chat-message-content h3 + table {
    margin-top: 6px;
}

.ai-chat-message-content th,
.ai-chat-message-content td {
    padding: 6px 8px;
    text-align: left;
    border-bottom: 1px solid var(--chat-border);
}

.ai-chat-message-content th {
    background: var(--chat-table-header-bg);
    font-weight: 600;
    color: var(--chat-text);
}

.ai-chat-message-content tr:last-child td {
    border-bottom: none;
}

.ai-chat-message-content tr:hover td {
    background: var(--chat-table-hover-bg);
}

/* ============================================================================
   Clarification Options
   ============================================================================ */
.ai-chat-options {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 12px;
}

.ai-chat-option {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 14px;
    background: var(--chat-primary-light);
    color: var(--chat-primary);
    border: 1px solid var(--chat-primary);
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--chat-transition);
}

.ai-chat-option:hover {
    background: var(--chat-primary);
    color: white;
}

.ai-chat-option i {
    font-size: 0.9rem;
}

/* ============================================================================
   Confidence Indicator
   ============================================================================ */
.ai-chat-confidence {
    display: flex;
    align-items: center;
    gap: 6px;
    margin-top: 8px;
    font-size: 0.7rem;
    color: var(--chat-text-secondary);
}

.ai-chat-confidence-bar {
    width: 50px;
    height: 4px;
    background: var(--chat-border);
    border-radius: 2px;
    overflow: hidden;
}

.ai-chat-confidence-fill {
    height: 100%;
    border-radius: 2px;
    transition: width 0.3s ease;
}

.ai-chat-confidence-fill.high {
    background: #22c55e;
}

.ai-chat-confidence-fill.medium {
    background: #f59e0b;
}

.ai-chat-confidence-fill.low {
    background: #ef4444;
}

/* ============================================================================
   Feedback Buttons
   ============================================================================ */
.ai-chat-feedback {
    display: flex;
    gap: 8px;
    margin-top: 8px;
}

.ai-chat-feedback-btn {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    border: 1px solid var(--chat-border);
    background: var(--chat-bg);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.8rem;
    color: var(--chat-text-secondary);
    transition: var(--chat-transition);
}

.ai-chat-feedback-btn:hover {
    border-color: var(--chat-primary);
    color: var(--chat-primary);
}

.ai-chat-feedback-btn.positive:hover,
.ai-chat-feedback-btn.positive.active {
    background: #dcfce7;
    border-color: #22c55e;
    color: #22c55e;
}

.ai-chat-feedback-btn.negative:hover,
.ai-chat-feedback-btn.negative.active {
    background: #fee2e2;
    border-color: #ef4444;
    color: #ef4444;
}

.ai-chat-feedback-btn.copy:hover {
    background: var(--chat-primary-light);
    border-color: var(--chat-primary);
    color: var(--chat-primary);
}

.ai-chat-feedback-btn.copy.copied {
    background: #dcfce7;
    border-color: #22c55e;
    color: #22c55e;
}

/* ============================================================================
   Starter Questions / Suggestions
   ============================================================================ */
.ai-chat-suggestions {
    padding: 12px 16px;
    border-top: 1px solid var(--chat-border);
    background: var(--chat-bg);
    flex-shrink: 0;
}

.ai-chat-suggestions-title {
    font-size: 0.7rem;
    font-weight: 600;
    color: var(--chat-text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 8px;
}

.ai-chat-suggestions-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

.ai-chat-suggestion {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 6px 10px;
    background: var(--chat-bg-secondary);
    border: 1px solid var(--chat-border);
    border-radius: var(--chat-radius-sm);
    font-size: 0.75rem;
    color: var(--chat-text);
    cursor: pointer;
    transition: var(--chat-transition);
}

.ai-chat-suggestion:hover {
    border-color: var(--chat-primary);
    background: var(--chat-primary-light);
    color: var(--chat-primary);
}

.ai-chat-suggestion i {
    color: var(--chat-primary);
    font-size: 0.8rem;
}

/* ============================================================================
   Chat Input Area
   ============================================================================ */
.ai-chat-input-area {
    display: flex;
    align-items: flex-end;
    gap: 10px;
    padding: 16px;
    border-top: 1px solid var(--chat-border);
    background: var(--chat-bg);
    flex-shrink: 0;
}

.ai-chat-input-wrapper {
    flex: 1;
    position: relative;
}

.ai-chat-input {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--chat-border);
    border-radius: var(--chat-radius);
    font-size: 0.9rem;
    resize: none;
    outline: none;
    transition: var(--chat-transition);
    font-family: inherit;
    min-height: 44px;
    max-height: 120px;
    line-height: 1.4;
    background: var(--chat-input-bg);
    color: var(--chat-text);
}

.ai-chat-input:focus {
    border-color: var(--chat-primary);
    box-shadow: 0 0 0 3px rgba(0, 102, 179, 0.1);
}

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

/* ============================================================================
   Microphone Button for Voice Input
   ============================================================================ */
.ai-chat-mic-btn {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    border: none;
    background: var(--chat-bg-secondary);
    color: var(--chat-text-secondary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--chat-transition);
    flex-shrink: 0;
    border: 1px solid var(--chat-border);
}

.ai-chat-mic-btn:hover:not(:disabled) {
    background: var(--chat-primary-light);
    color: var(--chat-primary);
    border-color: var(--chat-primary);
}

.ai-chat-mic-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.ai-chat-mic-btn.hidden {
    display: none;
}

.ai-chat-mic-btn.recording {
    background: #ef4444;
    color: white;
    border-color: #ef4444;
    animation: pulse-recording 1.5s infinite;
}

.ai-chat-mic-btn.recording:hover {
    background: #dc2626;
    border-color: #dc2626;
}

@keyframes pulse-recording {
    0%, 100% {
        box-shadow: 0 0 0 0 rgba(239, 68, 68, 0.4);
    }
    50% {
        box-shadow: 0 0 0 8px rgba(239, 68, 68, 0);
    }
}

.ai-chat-send-btn {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    border: none;
    background: var(--chat-primary);
    color: white;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--chat-transition);
    flex-shrink: 0;
}

.ai-chat-send-btn:hover:not(:disabled) {
    background: var(--chat-primary-dark);
    transform: scale(1.05);
}

.ai-chat-send-btn:disabled {
    background: var(--chat-border);
    color: var(--chat-text-secondary);
    cursor: not-allowed;
}

.ai-chat-send-btn i {
    font-size: 1rem;
}

/* ============================================================================
   Typing Indicator
   ============================================================================ */
.ai-chat-typing {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 16px;
    background: var(--chat-assistant-bg);
    border: 1px solid var(--chat-border);
    border-radius: var(--chat-radius);
    border-bottom-left-radius: 4px;
    max-width: 80px;
}

.ai-chat-typing-dots {
    display: flex;
    gap: 4px;
}

.ai-chat-typing-dot {
    width: 8px;
    height: 8px;
    background: var(--chat-primary);
    border-radius: 50%;
    animation: typing-bounce 1.4s infinite;
}

.ai-chat-typing-dot:nth-child(2) {
    animation-delay: 0.2s;
}

.ai-chat-typing-dot:nth-child(3) {
    animation-delay: 0.4s;
}

@keyframes typing-bounce {
    0%, 60%, 100% {
        transform: translateY(0);
        opacity: 0.4;
    }
    30% {
        transform: translateY(-8px);
        opacity: 1;
    }
}

/* ============================================================================
   Empty State
   ============================================================================ */
.ai-chat-empty {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
    padding: 20px 16px;
    text-align: center;
}

.ai-chat-empty-icon {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: var(--chat-primary-light);
    color: var(--chat-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    margin-bottom: 12px;
    border: 1px solid var(--chat-border);
}

.ai-chat-empty h3 {
    margin: 0 0 6px 0;
    font-size: 1rem;
    color: var(--chat-text);
}

.ai-chat-empty p {
    margin: 0;
    font-size: 0.8rem;
    color: var(--chat-text-secondary);
    line-height: 1.4;
}

/* ============================================================================
   Loading State
   ============================================================================ */
.ai-chat-loading {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.ai-chat-spinner {
    width: 24px;
    height: 24px;
    border: 2px solid var(--chat-border);
    border-top-color: var(--chat-primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

/* Dark mode specific overrides */
[data-theme="dark"] .ai-chat-panel {
    border: 1px solid var(--chat-border);
}

[data-theme="dark"] .ai-chat-message.assistant .ai-chat-message-content {
    background: var(--chat-bg-secondary);
    border-color: var(--chat-border);
}

[data-theme="dark"] .ai-chat-option {
    background: var(--chat-bg-secondary);
    border-color: var(--chat-border);
    color: var(--chat-text);
}

[data-theme="dark"] .ai-chat-option:hover {
    background: var(--chat-primary-light);
    border-color: var(--chat-primary);
    color: var(--chat-primary);
}

[data-theme="dark"] .ai-chat-suggestion {
    background: var(--chat-bg-secondary);
    border-color: var(--chat-border);
    color: var(--chat-text);
}

[data-theme="dark"] .ai-chat-suggestion:hover {
    background: var(--chat-primary-light);
    border-color: var(--chat-primary);
    color: var(--chat-primary);
}

[data-theme="dark"] .ai-chat-input::placeholder {
    color: var(--chat-text-secondary);
}

[data-theme="dark"] .ai-chat-input:focus {
    border-color: var(--chat-primary);
    box-shadow: 0 0 0 3px rgba(96, 165, 250, 0.2);
}

[data-theme="dark"] .ai-chat-typing {
    background: var(--chat-bg-secondary);
    border-color: var(--chat-border);
}

[data-theme="dark"] .ai-chat-header {
    border-bottom: 1px solid var(--chat-border);
}

[data-theme="dark"] .ai-chat-header-avatar {
    background: linear-gradient(135deg, rgba(96, 165, 250, 0.3) 0%, rgba(139, 92, 246, 0.2) 100%);
}

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

/* ============================================================================
   Chat History Panel
   ============================================================================ */
.ai-chat-history {
    flex: 1;
    overflow-y: auto;
    background: var(--chat-bg-secondary);
}

.ai-chat-history-empty {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 48px 24px;
    text-align: center;
    color: var(--chat-text-secondary);
}

.ai-chat-history-empty i {
    font-size: 3rem;
    margin-bottom: 16px;
    opacity: 0.5;
}

.ai-chat-history-empty p {
    font-size: 1rem;
    font-weight: 500;
    margin: 0 0 8px 0;
    color: var(--chat-text);
}

.ai-chat-history-empty span {
    font-size: 0.85rem;
}

.ai-chat-history-list {
    display: flex;
    flex-direction: column;
}

.ai-chat-history-item {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 16px 20px;
    cursor: pointer;
    border-bottom: 1px solid var(--chat-border);
    transition: var(--chat-transition);
    position: relative;
}

.ai-chat-history-item:hover {
    background: var(--chat-bg);
}

.ai-chat-history-item.active {
    background: var(--chat-primary-light);
    border-left: 3px solid var(--chat-primary);
}

.ai-chat-history-item-icon {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: var(--chat-primary-light);
    color: var(--chat-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.ai-chat-history-item.active .ai-chat-history-item-icon {
    background: var(--chat-primary);
    color: white;
}

.ai-chat-history-item-content {
    flex: 1;
    min-width: 0;
    overflow: hidden;
}

.ai-chat-history-item-title {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--chat-text);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    margin-bottom: 4px;
}

.ai-chat-history-item-preview {
    font-size: 0.8rem;
    color: var(--chat-text-secondary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    margin-bottom: 4px;
}

.ai-chat-history-item-time {
    font-size: 0.7rem;
    color: var(--chat-text-secondary);
    opacity: 0.8;
}

.ai-chat-history-item-delete {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    border: none;
    background: transparent;
    color: var(--chat-text-secondary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: var(--chat-transition);
    flex-shrink: 0;
    align-self: center;
}

.ai-chat-history-item:hover .ai-chat-history-item-delete {
    opacity: 1;
}

.ai-chat-history-item-delete:hover {
    background: #fee2e2;
    color: #ef4444;
}

/* Back button styling */
.ai-chat-back-btn {
    margin-right: 4px;
}

/* Dark mode history styles */
[data-theme="dark"] .ai-chat-history-item:hover {
    background: var(--chat-bg);
}

[data-theme="dark"] .ai-chat-history-item.active {
    background: rgba(96, 165, 250, 0.1);
}

[data-theme="dark"] .ai-chat-history-item-delete:hover {
    background: rgba(239, 68, 68, 0.2);
    color: #f87171;
}

/* ============================================================================
   Error State
   ============================================================================ */
.ai-chat-error {
    padding: 12px 16px;
    background: #fee2e2;
    border: 1px solid #fecaca;
    border-radius: var(--chat-radius-sm);
    color: #991b1b;
    font-size: 0.85rem;
    display: flex;
    align-items: center;
    gap: 8px;
}

.ai-chat-error i {
    color: #ef4444;
}

/* ============================================================================
   Mobile Responsive
   ============================================================================ */
@media (max-width: 480px) {
    .ai-chat-button {
        bottom: 16px;
        right: 16px;
        width: 52px;
        height: 52px;
    }

    .ai-chat-panel {
        bottom: 0;
        right: 0;
        left: 0;
        top: 0;
        width: 100%;
        height: 100%;
        max-height: none;
        min-height: auto;
        border-radius: 0;
        /* Support for safe areas (notch, status bar) */
        padding-top: env(safe-area-inset-top, 0);
        padding-bottom: env(safe-area-inset-bottom, 0);
        padding-left: env(safe-area-inset-left, 0);
        padding-right: env(safe-area-inset-right, 0);
    }

    .ai-chat-panel.open {
        transform: translateY(0);
    }

    .ai-chat-header {
        padding: 12px 16px;
        /* Extra padding for status bar on iOS/Android */
        padding-top: max(12px, env(safe-area-inset-top, 12px));
    }

    .ai-chat-messages {
        padding: 12px;
    }

    .ai-chat-message {
        max-width: 95%;
    }

    .ai-chat-input-area {
        padding: 12px;
        /* Extra padding for home indicator on iOS */
        padding-bottom: max(12px, env(safe-area-inset-bottom, 12px));
    }
}

/* ============================================================================
   Small Laptop / Limited Height Screens
   ============================================================================ */
@media (min-width: 481px) and (max-height: 800px) {
    .ai-chat-panel {
        bottom: 80px;
        height: 550px;
        max-height: calc(100vh - 100px);
        max-height: calc(100dvh - 100px);
    }

    .ai-chat-panel.maximized {
        top: 10px;
        bottom: 10px;
        height: auto;
        max-height: none;
    }
}

/* Very small height screens (e.g., landscape tablets, small laptops) */
@media (min-width: 481px) and (max-height: 650px) {
    .ai-chat-panel {
        bottom: 70px;
        height: 450px;
        max-height: calc(100vh - 90px);
        max-height: calc(100dvh - 90px);
    }

    .ai-chat-button {
        bottom: 12px;
        right: 16px;
        width: 48px;
        height: 48px;
    }
}

/* ============================================================================
   Print Styles - Hide chat in print
   ============================================================================ */
@media print {
    .ai-chat-button,
    .ai-chat-panel {
        display: none !important;
    }
}