/**
 * WP AI Assistant - Chat Widget Styles
 *
 * @package WP_AI_Assistant
 * @since 1.0.0
 */

/* CSS Variables */
:root {
    --wpaia-primary-color: #0073aa;
    --wpaia-primary-hover: #005a87;
    --wpaia-primary-light: #e6f3ff;
    --wpaia-text-color: #1e1e1e;
    --wpaia-text-light: #757575;
    --wpaia-bg-color: #ffffff;
    --wpaia-border-color: #e0e0e0;
    --wpaia-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
    --wpaia-radius: 12px;
    --wpaia-font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen-Sans, Ubuntu, Cantarell, "Helvetica Neue", sans-serif;
}

/* Widget Container */
.wpaia-widget {
    position: fixed;
    z-index: 999999;
    font-family: var(--wpaia-font-family);
    font-size: 14px;
    line-height: 1.5;
}

.wpaia-widget * {
    box-sizing: border-box;
}

/* Position Variants */
.wpaia-position-bottom-right {
    bottom: 20px;
    right: 20px;
}

.wpaia-position-bottom-left {
    bottom: 20px;
    left: 20px;
}

/* Toggle Button */
.wpaia-toggle-btn {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: var(--wpaia-primary-color);
    color: #ffffff;
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--wpaia-shadow);
    transition: transform 0.2s ease, background-color 0.2s ease;
}

.wpaia-toggle-btn:hover {
    background: var(--wpaia-primary-hover);
    transform: scale(1.05);
}

.wpaia-toggle-btn:focus {
    outline: 2px solid var(--wpaia-primary-color);
    outline-offset: 2px;
}

.wpaia-toggle-btn svg {
    width: 28px;
    height: 28px;
}

/* Chat Window */
.wpaia-chat-window {
    position: absolute;
    bottom: 70px;
    width: 380px;
    max-width: calc(100vw - 40px);
    height: 500px;
    max-height: calc(100vh - 120px);
    background: var(--wpaia-bg-color);
    border-radius: var(--wpaia-radius);
    box-shadow: var(--wpaia-shadow);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    animation: wpaia-slide-up 0.3s ease;
}

.wpaia-position-bottom-right .wpaia-chat-window {
    right: 0;
}

.wpaia-position-bottom-left .wpaia-chat-window {
    left: 0;
}

@keyframes wpaia-slide-up {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Chat Header */
.wpaia-chat-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 20px;
    background: var(--wpaia-primary-color);
    color: #ffffff;
}

.wpaia-chat-title {
    font-weight: 600;
    font-size: 16px;
}

.wpaia-minimize-btn {
    width: 32px;
    height: 32px;
    border-radius: 6px;
    background: rgba(255, 255, 255, 0.2);
    color: #ffffff;
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background-color 0.2s ease;
}

.wpaia-minimize-btn:hover {
    background: rgba(255, 255, 255, 0.3);
}

.wpaia-minimize-btn svg {
    width: 20px;
    height: 20px;
}

/* Messages Container */
.wpaia-chat-messages {
    flex: 1;
    overflow-y: auto;
    padding: 16px;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

/* Message Styles */
.wpaia-message {
    max-width: 85%;
    animation: wpaia-fade-in 0.3s ease;
}

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

.wpaia-message-user {
    align-self: flex-end;
}

.wpaia-message-assistant {
    align-self: flex-start;
}

.wpaia-message-content {
    padding: 12px 16px;
    border-radius: var(--wpaia-radius);
    word-wrap: break-word;
}

.wpaia-message-user .wpaia-message-content {
    background: var(--wpaia-primary-color);
    color: #ffffff;
    border-bottom-right-radius: 4px;
}

.wpaia-message-assistant .wpaia-message-content {
    background: #f0f0f0;
    color: var(--wpaia-text-color);
    border-bottom-left-radius: 4px;
}

/* Message Content Formatting */
.wpaia-message-content p {
    margin: 0 0 8px 0;
}

.wpaia-message-content p:last-child {
    margin-bottom: 0;
}

.wpaia-message-content a {
    color: inherit;
    text-decoration: underline;
}

.wpaia-message-user .wpaia-message-content a {
    color: #ffffff;
}

.wpaia-message-assistant .wpaia-message-content a {
    color: var(--wpaia-primary-color);
}

.wpaia-message-content ul,
.wpaia-message-content ol {
    margin: 8px 0;
    padding-left: 20px;
}

.wpaia-message-content li {
    margin: 4px 0;
}

.wpaia-message-content code {
    background: rgba(0, 0, 0, 0.1);
    padding: 2px 6px;
    border-radius: 4px;
    font-family: monospace;
    font-size: 13px;
}

.wpaia-message-content pre {
    background: #1e1e1e;
    color: #f8f8f2;
    padding: 12px;
    border-radius: 6px;
    overflow-x: auto;
    margin: 8px 0;
}

.wpaia-message-content pre code {
    background: transparent;
    padding: 0;
}

/* Typing Indicator */
.wpaia-typing {
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 12px 16px;
    background: #f0f0f0;
    border-radius: var(--wpaia-radius);
    border-bottom-left-radius: 4px;
    max-width: 80px;
}

.wpaia-typing-dot {
    width: 8px;
    height: 8px;
    background: var(--wpaia-text-light);
    border-radius: 50%;
    animation: wpaia-bounce 1.4s infinite ease-in-out both;
}

.wpaia-typing-dot:nth-child(1) {
    animation-delay: -0.32s;
}

.wpaia-typing-dot:nth-child(2) {
    animation-delay: -0.16s;
}

@keyframes wpaia-bounce {
    0%, 80%, 100% {
        transform: scale(0);
    }
    40% {
        transform: scale(1);
    }
}

/* Chat Form */
.wpaia-chat-form {
    padding: 16px;
    border-top: 1px solid var(--wpaia-border-color);
    background: var(--wpaia-bg-color);
}

.wpaia-input-wrapper {
    display: flex;
    gap: 8px;
    align-items: flex-end;
}

.wpaia-input {
    flex: 1;
    padding: 12px 16px;
    border: 1px solid var(--wpaia-border-color);
    border-radius: 24px;
    font-family: inherit;
    font-size: 14px;
    line-height: 1.5;
    resize: none;
    max-height: 120px;
    transition: border-color 0.2s ease;
}

.wpaia-input:focus {
    outline: none;
    border-color: var(--wpaia-primary-color);
}

.wpaia-input::placeholder {
    color: var(--wpaia-text-light);
}

.wpaia-send-btn {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: var(--wpaia-primary-color);
    color: #ffffff;
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: background-color 0.2s ease, transform 0.2s ease;
}

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

.wpaia-send-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.wpaia-send-btn svg {
    width: 20px;
    height: 20px;
}

/* Error Message */
.wpaia-error {
    background: #fef2f2;
    color: #dc2626;
    padding: 12px 16px;
    border-radius: var(--wpaia-radius);
    font-size: 13px;
}

/* Sources */
.wpaia-sources {
    margin-top: 12px;
    padding-top: 12px;
    border-top: 1px solid rgba(0, 0, 0, 0.1);
    font-size: 12px;
}

.wpaia-sources-title {
    font-weight: 600;
    margin-bottom: 4px;
    color: var(--wpaia-text-light);
}

.wpaia-sources-list {
    list-style: none;
    margin: 0;
    padding: 0;
}

.wpaia-sources-list li {
    margin: 2px 0;
}

.wpaia-sources-list a {
    color: var(--wpaia-primary-color);
    text-decoration: none;
}

.wpaia-sources-list a:hover {
    text-decoration: underline;
}

/* Embedded Chat (Shortcode) */
.wpaia-embedded-chat {
    display: flex;
    flex-direction: column;
    border: 1px solid var(--wpaia-border-color);
    border-radius: var(--wpaia-radius);
    overflow: hidden;
    background: var(--wpaia-bg-color);
    font-family: var(--wpaia-font-family);
}

.wpaia-embedded-chat .wpaia-chat-messages {
    flex: 1;
}

/* Scrollbar Styling */
.wpaia-chat-messages::-webkit-scrollbar {
    width: 6px;
}

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

.wpaia-chat-messages::-webkit-scrollbar-thumb {
    background: #c0c0c0;
    border-radius: 3px;
}

.wpaia-chat-messages::-webkit-scrollbar-thumb:hover {
    background: #a0a0a0;
}

/* Mobile Responsive */
@media (max-width: 480px) {
    .wpaia-chat-window {
        width: calc(100vw - 20px);
        height: calc(100vh - 100px);
        bottom: 70px;
    }

    .wpaia-position-bottom-right .wpaia-chat-window,
    .wpaia-position-bottom-left .wpaia-chat-window {
        right: 10px;
        left: 10px;
    }

    .wpaia-toggle-btn {
        width: 56px;
        height: 56px;
    }

    .wpaia-widget {
        bottom: 15px;
    }

    .wpaia-position-bottom-right {
        right: 15px;
    }

    .wpaia-position-bottom-left {
        left: 15px;
    }
}

/* Print - Hide widget */
@media print {
    .wpaia-widget {
        display: none !important;
    }
}

/* System Messages */
.wpaia-message-system {
    align-self: center;
    max-width: 95%;
}

.wpaia-system-message {
    background: #f8f9fa;
    color: var(--wpaia-text-color);
    padding: 12px 16px;
    border-radius: var(--wpaia-radius);
    text-align: center;
    font-size: 13px;
    border: 1px solid var(--wpaia-border-color);
}

/* Lead Capture Form */
.wpaia-lead-capture {
    background: #f8f9fa;
    border-radius: var(--wpaia-radius);
    padding: 16px;
    border: 1px solid var(--wpaia-border-color);
}

.wpaia-lead-capture-header {
    font-weight: 500;
    margin-bottom: 12px;
    text-align: center;
}

.wpaia-lead-form {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.wpaia-lead-form input {
    padding: 10px 14px;
    border: 1px solid var(--wpaia-border-color);
    border-radius: 8px;
    font-family: inherit;
    font-size: 14px;
    transition: border-color 0.2s ease;
}

.wpaia-lead-form input:focus {
    outline: none;
    border-color: var(--wpaia-primary-color);
}

.wpaia-lead-submit {
    padding: 10px 16px;
    background: var(--wpaia-primary-color);
    color: #ffffff;
    border: none;
    border-radius: 8px;
    font-family: inherit;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: background-color 0.2s ease;
}

.wpaia-lead-submit:hover {
    background: var(--wpaia-primary-hover);
}

.wpaia-lead-skip {
    display: block;
    width: 100%;
    margin-top: 8px;
    padding: 8px;
    background: transparent;
    color: var(--wpaia-text-light);
    border: none;
    font-family: inherit;
    font-size: 13px;
    cursor: pointer;
    text-decoration: underline;
}

.wpaia-lead-skip:hover {
    color: var(--wpaia-text-color);
}

/* Lead Prompt */
.wpaia-lead-prompt {
    text-align: center;
}

.wpaia-lead-prompt span {
    display: block;
    margin-bottom: 10px;
}

.wpaia-lead-prompt button {
    margin: 0 4px;
    padding: 8px 16px;
    border-radius: 6px;
    font-family: inherit;
    font-size: 13px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.wpaia-lead-prompt-yes {
    background: var(--wpaia-primary-color);
    color: #ffffff;
    border: none;
}

.wpaia-lead-prompt-yes:hover {
    background: var(--wpaia-primary-hover);
}

.wpaia-lead-prompt-no {
    background: transparent;
    color: var(--wpaia-text-light);
    border: 1px solid var(--wpaia-border-color);
}

.wpaia-lead-prompt-no:hover {
    border-color: var(--wpaia-text-light);
    color: var(--wpaia-text-color);
}

/* Handoff Option */
.wpaia-handoff-option {
    text-align: center;
}

.wpaia-handoff-option span {
    display: block;
    margin-bottom: 10px;
}

.wpaia-handoff-yes {
    padding: 10px 20px;
    background: #16a34a;
    color: #ffffff;
    border: none;
    border-radius: 8px;
    font-family: inherit;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: background-color 0.2s ease;
}

.wpaia-handoff-yes:hover {
    background: #15803d;
}

/* Live Chat Indicator */
.wpaia-live-indicator {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 8px 12px;
    background: #dcfce7;
    color: #166534;
    font-size: 12px;
    font-weight: 500;
}

.wpaia-live-indicator::before {
    content: '';
    width: 8px;
    height: 8px;
    background: #22c55e;
    border-radius: 50%;
    animation: wpaia-pulse 2s infinite;
}

@keyframes wpaia-pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.5;
    }
}

/* Accessibility - Reduced Motion */
@media (prefers-reduced-motion: reduce) {
    .wpaia-chat-window,
    .wpaia-message,
    .wpaia-toggle-btn,
    .wpaia-send-btn {
        animation: none;
        transition: none;
    }

    .wpaia-typing-dot {
        animation: none;
        opacity: 0.5;
    }

    .wpaia-live-indicator::before {
        animation: none;
    }
}