/**
 * Agent Chat Widget Styles
 * A sleek, modern chat interface for the Gemini AI agent
 */

/* CSS Variables for theming */
.agent-chat-widget {
    --chat-primary: #0f172a;
    --chat-primary-light: #1e293b;
    --chat-accent: #6366f1;
    --chat-accent-hover: #4f46e5;
    --chat-success: #10b981;
    --chat-error: #ef4444;
    --chat-warning: #f59e0b;
    --chat-background: #f8fafc;
    --chat-surface: #ffffff;
    --chat-border: #e2e8f0;
    --chat-text-primary: #0f172a;
    --chat-text-secondary: #64748b;
    --chat-text-muted: #94a3b8;
    --chat-user-bubble: #6366f1;
    --chat-agent-bubble: #f1f5f9;
    --chat-radius: 12px;
    --chat-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
    --chat-shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
}

/* Container */
.agent-chat-widget {
    display: flex;
    flex-direction: column;
    height: 600px;
    max-height: 80vh;
    background: var(--chat-surface);
    border-radius: var(--chat-radius);
    box-shadow: var(--chat-shadow-lg);
    overflow: hidden;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

/* Header */
.agent-chat-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 1.25rem;
    background: linear-gradient(135deg, var(--chat-primary) 0%, var(--chat-primary-light) 100%);
    color: white;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.agent-chat-header-left {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.agent-chat-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--chat-accent) 0%, #8b5cf6 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    box-shadow: 0 2px 8px rgba(99, 102, 241, 0.4);
}

.agent-chat-title {
    font-weight: 600;
    font-size: 1rem;
    margin: 0;
}

.agent-chat-subtitle {
    font-size: 0.75rem;
    opacity: 0.8;
    margin: 0;
}

.agent-chat-status {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.75rem;
    padding: 0.25rem 0.75rem;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 100px;
}

.agent-chat-status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--chat-success);
    animation: pulse 2s infinite;
}

.agent-chat-status-dot.offline {
    background: var(--chat-error);
    animation: none;
}

.agent-chat-status-dot.connecting {
    background: var(--chat-warning);
    animation: blink 1s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.7; transform: scale(0.95); }
}

@keyframes blink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.3; }
}

/* Messages Container */
.agent-chat-messages {
    flex: 1;
    overflow-y: auto;
    padding: 1.25rem;
    background: var(--chat-background);
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

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

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

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

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

/* Message Bubbles */
.agent-chat-message {
    display: flex;
    gap: 0.75rem;
    max-width: 85%;
    animation: messageSlideIn 0.3s ease-out;
}

@keyframes messageSlideIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.agent-chat-message.user {
    align-self: flex-end;
    flex-direction: row-reverse;
}

.agent-chat-message.agent {
    align-self: flex-start;
}

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

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

.agent-chat-message.agent .agent-chat-message-avatar {
    background: linear-gradient(135deg, var(--chat-primary) 0%, var(--chat-primary-light) 100%);
    color: white;
}

.agent-chat-message-content {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.agent-chat-message-bubble {
    padding: 0.875rem 1rem;
    border-radius: var(--chat-radius);
    line-height: 1.5;
    font-size: 0.9375rem;
    word-wrap: break-word;
}

.agent-chat-message.user .agent-chat-message-bubble {
    background: var(--chat-user-bubble);
    color: white;
    border-bottom-right-radius: 4px;
}

.agent-chat-message.agent .agent-chat-message-bubble {
    background: var(--chat-agent-bubble);
    color: var(--chat-text-primary);
    border-bottom-left-radius: 4px;
}

.agent-chat-message-time {
    font-size: 0.6875rem;
    color: var(--chat-text-muted);
    padding: 0 0.5rem;
}

.agent-chat-message.user .agent-chat-message-time {
    text-align: right;
}

/* Typing Indicator */
.agent-chat-typing {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.5rem 0;
}

.agent-chat-typing-dots {
    display: flex;
    gap: 4px;
    padding: 0.75rem 1rem;
    background: var(--chat-agent-bubble);
    border-radius: var(--chat-radius);
}

.agent-chat-typing-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--chat-text-muted);
    animation: typingBounce 1.4s infinite ease-in-out;
}

.agent-chat-typing-dot:nth-child(1) { animation-delay: 0s; }
.agent-chat-typing-dot:nth-child(2) { animation-delay: 0.2s; }
.agent-chat-typing-dot:nth-child(3) { animation-delay: 0.4s; }

@keyframes typingBounce {
    0%, 60%, 100% { transform: translateY(0); }
    30% { transform: translateY(-6px); }
}

/* Input Area */
.agent-chat-input-area {
    padding: 1rem 1.25rem;
    background: var(--chat-surface);
    border-top: 1px solid var(--chat-border);
}

.agent-chat-input-container {
    display: flex;
    gap: 0.75rem;
    align-items: flex-end;
}

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

.agent-chat-input {
    width: 100%;
    padding: 0.875rem 1rem;
    border: 2px solid var(--chat-border);
    border-radius: var(--chat-radius);
    font-size: 0.9375rem;
    font-family: inherit;
    resize: none;
    min-height: 48px;
    max-height: 150px;
    line-height: 1.5;
    transition: border-color 0.2s, box-shadow 0.2s;
    background: var(--chat-surface);
    color: var(--chat-text-primary);
}

.agent-chat-input:focus {
    outline: none;
    border-color: var(--chat-accent);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

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

.agent-chat-input:disabled {
    background: var(--chat-background);
    cursor: not-allowed;
}

.agent-chat-send-btn {
    width: 48px;
    height: 48px;
    border: none;
    border-radius: var(--chat-radius);
    background: var(--chat-accent);
    color: white;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    transition: background-color 0.2s, transform 0.1s;
    flex-shrink: 0;
}

.agent-chat-send-btn:hover:not(:disabled) {
    background: var(--chat-accent-hover);
}

.agent-chat-send-btn:active:not(:disabled) {
    transform: scale(0.95);
}

.agent-chat-send-btn:disabled {
    background: var(--chat-border);
    cursor: not-allowed;
}

/* Quick Actions */
.agent-chat-quick-actions {
    display: flex;
    gap: 0.5rem;
    margin-top: 0.75rem;
    flex-wrap: wrap;
}

.agent-chat-quick-action {
    padding: 0.5rem 0.875rem;
    background: var(--chat-background);
    border: 1px solid var(--chat-border);
    border-radius: 100px;
    font-size: 0.8125rem;
    color: var(--chat-text-secondary);
    cursor: pointer;
    transition: all 0.2s;
}

.agent-chat-quick-action:hover {
    background: var(--chat-accent);
    border-color: var(--chat-accent);
    color: white;
}

/* Welcome State */
.agent-chat-welcome {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 3rem 2rem;
    gap: 1rem;
}

.agent-chat-welcome-icon {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--chat-accent) 0%, #8b5cf6 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
    color: white;
    box-shadow: 0 4px 20px rgba(99, 102, 241, 0.3);
}

.agent-chat-welcome h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--chat-text-primary);
    margin: 0;
}

.agent-chat-welcome p {
    color: var(--chat-text-secondary);
    max-width: 300px;
    margin: 0;
    line-height: 1.6;
}

/* Error State */
.agent-chat-error {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem;
    background: #fef2f2;
    border: 1px solid #fecaca;
    border-radius: var(--chat-radius);
    color: var(--chat-error);
    font-size: 0.875rem;
}

.agent-chat-error-icon {
    font-size: 1.25rem;
}

.agent-chat-retry-btn {
    margin-left: auto;
    padding: 0.375rem 0.75rem;
    background: var(--chat-error);
    color: white;
    border: none;
    border-radius: 6px;
    font-size: 0.75rem;
    cursor: pointer;
    transition: opacity 0.2s;
}

.agent-chat-retry-btn:hover {
    opacity: 0.9;
}

/* Code Blocks in Messages */
.agent-chat-message-bubble pre {
    background: #1e293b;
    color: #e2e8f0;
    padding: 1rem;
    border-radius: 8px;
    overflow-x: auto;
    margin: 0.5rem 0;
    font-family: 'Fira Code', 'Monaco', 'Consolas', monospace;
    font-size: 0.8125rem;
}

.agent-chat-message-bubble code {
    background: rgba(0, 0, 0, 0.1);
    padding: 0.125rem 0.375rem;
    border-radius: 4px;
    font-family: 'Fira Code', 'Monaco', 'Consolas', monospace;
    font-size: 0.875em;
}

.agent-chat-message.agent .agent-chat-message-bubble code {
    background: rgba(0, 0, 0, 0.05);
}

.agent-chat-message.user .agent-chat-message-bubble code {
    background: rgba(255, 255, 255, 0.2);
}

/* Loading Overlay */
.agent-chat-loading {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(255, 255, 255, 0.9);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    z-index: 10;
}

.agent-chat-spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--chat-border);
    border-top-color: var(--chat-accent);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

/* Responsive */
@media (max-width: 480px) {
    .agent-chat-widget {
        height: 100vh;
        max-height: none;
        border-radius: 0;
    }

    .agent-chat-message {
        max-width: 90%;
    }

    .agent-chat-header {
        padding: 0.875rem 1rem;
    }

    .agent-chat-messages {
        padding: 1rem;
    }

    .agent-chat-input-area {
        padding: 0.875rem 1rem;
    }
}

/* Dark Mode Support */
@media (prefers-color-scheme: dark) {
    .agent-chat-widget.auto-theme {
        --chat-background: #0f172a;
        --chat-surface: #1e293b;
        --chat-border: #334155;
        --chat-text-primary: #f1f5f9;
        --chat-text-secondary: #94a3b8;
        --chat-text-muted: #64748b;
        --chat-agent-bubble: #334155;
    }
}