/**
 * WP Chat AI - Public Styles
 * 
 * Modern, responsive chat interface styling
 */

/* Reset and base styles */
.wpcai-chat-widget * {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

/* Main widget container */
.wpcai-chat-widget {
    position: fixed;
    z-index: 999999;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    font-size: 14px;
    line-height: 1.4;
    color: #333;
}

/* Position variants */
.wpcai-position-bottom-right {
    bottom: 20px;
    right: 20px;
}

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

.wpcai-position-top-right {
    top: 20px;
    right: 20px;
}

.wpcai-position-top-left {
    top: 20px;
    left: 20px;
}

/* Chat toggle button */
.wpcai-chat-toggle {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #007cba 0%, #005a87 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: 0 4px 20px rgba(0, 124, 186, 0.3);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    color: white;
    border: none;
    outline: none;
    position: relative;
    overflow: hidden;
}

.wpcai-chat-toggle::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at center, rgba(255, 255, 255, 0.2) 0%, transparent 70%);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.wpcai-chat-toggle:hover {
    transform: scale(1.05);
    box-shadow: 0 6px 25px rgba(0, 124, 186, 0.4);
}

.wpcai-chat-toggle:hover::before {
    opacity: 1;
}

.wpcai-chat-toggle:active {
    transform: scale(0.95);
}

.wpcai-chat-toggle.wpcai-chat-open {
    background: linear-gradient(135deg, #dc3545 0%, #c82333 100%);
    box-shadow: 0 4px 20px rgba(220, 53, 69, 0.3);
}

.wpcai-chat-toggle.wpcai-chat-minimized {
    background: linear-gradient(135deg, #ffc107 0%, #e0a800 100%);
    box-shadow: 0 4px 20px rgba(255, 193, 7, 0.3);
}

/* Chat window */
.wpcai-chat-window {
    position: absolute;
    bottom: 70px;
    right: 0;
    width: 380px;
    height: 520px;
    background: #ffffff;
    border-radius: 16px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.15);
    display: none;
    flex-direction: column;
    overflow: hidden;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

/* Position adjustments for chat window */
.wpcai-position-bottom-left .wpcai-chat-window,
.wpcai-position-top-left .wpcai-chat-window {
    right: auto;
    left: 0;
}

.wpcai-position-top-right .wpcai-chat-window,
.wpcai-position-top-left .wpcai-chat-window {
    bottom: auto;
    top: 70px;
}

/* Chat header */
.wpcai-chat-header {
    background: linear-gradient(135deg, #007cba 0%, #005a87 100%);
    color: white;
    padding: 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: relative;
    overflow: hidden;
}

.wpcai-chat-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grain" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="25" cy="25" r="1" fill="rgba(255,255,255,0.05)"/><circle cx="75" cy="75" r="1" fill="rgba(255,255,255,0.05)"/><circle cx="50" cy="10" r="0.5" fill="rgba(255,255,255,0.03)"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>');
    opacity: 0.3;
    pointer-events: none;
}

.wpcai-chat-title {
    margin: 0;
    font-size: 18px;
    font-weight: 600;
    position: relative;
    z-index: 1;
}

.wpcai-chat-controls {
    display: flex;
    gap: 8px;
    position: relative;
    z-index: 1;
}

.wpcai-chat-control {
    background: rgba(255, 255, 255, 0.1);
    border: none;
    color: white;
    cursor: pointer;
    padding: 8px;
    border-radius: 8px;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
}

.wpcai-chat-control:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: scale(1.1);
}

.wpcai-chat-control:active {
    transform: scale(0.95);
}

/* Chat messages container */
.wpcai-chat-messages {
    flex: 1;
    padding: 20px;
    overflow-y: auto;
    background: linear-gradient(to bottom, #f8f9fa 0%, #e9ecef 100%);
    position: relative;
}

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

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

.wpcai-chat-messages::-webkit-scrollbar-thumb {
    background: rgba(0, 124, 186, 0.3);
    border-radius: 3px;
}

.wpcai-chat-messages::-webkit-scrollbar-thumb:hover {
    background: rgba(0, 124, 186, 0.5);
}

/* Individual messages */
.wpcai-message {
    margin-bottom: 16px;
    display: flex;
    flex-direction: column;
    animation: messageSlideIn 0.3s ease-out;
}

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

.wpcai-message-user {
    align-items: flex-end;
}

.wpcai-message-bot {
    align-items: flex-start;
}

.wpcai-message-error {
    align-items: center;
}

.wpcai-message-content {
    max-width: 85%;
    padding: 14px 18px;
    border-radius: 20px;
    font-size: 14px;
    line-height: 1.5;
    position: relative;
    word-wrap: break-word;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

/* User message styling */
.wpcai-message-user .wpcai-message-content {
    background: linear-gradient(135deg, #007cba 0%, #0056b3 100%);
    color: white;
    border-bottom-right-radius: 6px;
}

.wpcai-message-user .wpcai-message-content::before {
    content: '';
    position: absolute;
    bottom: 0;
    right: -8px;
    width: 0;
    height: 0;
    border: 8px solid transparent;
    border-left-color: #0056b3;
    border-bottom: none;
}

/* Bot message styling */
.wpcai-message-bot .wpcai-message-content {
    background: #ffffff;
    color: #333;
    border: 1px solid #e9ecef;
    border-bottom-left-radius: 6px;
}

.wpcai-message-bot .wpcai-message-content::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: -8px;
    width: 0;
    height: 0;
    border: 8px solid transparent;
    border-right-color: #ffffff;
    border-bottom: none;
}

.wpcai-message-bot .wpcai-message-content::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: -9px;
    width: 0;
    height: 0;
    border: 8px solid transparent;
    border-right-color: #e9ecef;
    border-bottom: none;
}

/* Error message styling */
.wpcai-message-error .wpcai-message-content {
    background: linear-gradient(135deg, #dc3545 0%, #c82333 100%);
    color: white;
    border-radius: 20px;
    text-align: center;
}

/* Message timestamps */
.wpcai-message-timestamp {
    font-size: 11px;
    color: #6c757d;
    margin-top: 4px;
    padding: 0 4px;
}

.wpcai-message-user .wpcai-message-timestamp {
    text-align: right;
}

.wpcai-message-bot .wpcai-message-timestamp {
    text-align: left;
}

/* Confidence indicator */
.wpcai-confidence {
    position: absolute;
    top: -6px;
    right: -6px;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    border: 2px solid white;
}

.wpcai-confidence-high {
    background: #28a745;
}

.wpcai-confidence-medium {
    background: #ffc107;
}

.wpcai-confidence-low {
    background: #dc3545;
}

/* Typing indicator */
.wpcai-typing-indicator .wpcai-message-content {
    padding: 16px 20px;
}

.wpcai-typing-dots {
    display: flex;
    gap: 4px;
    align-items: center;
}

.wpcai-typing-dots span {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: #6c757d;
    animation: typingDot 1.4s infinite ease-in-out;
}

.wpcai-typing-dots span:nth-child(1) {
    animation-delay: -0.32s;
}

.wpcai-typing-dots span:nth-child(2) {
    animation-delay: -0.16s;
}

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

/* Chat input container */
.wpcai-chat-input-container {
    padding: 20px;
    background: #ffffff;
    border-top: 1px solid #e9ecef;
    position: relative;
}

.wpcai-chat-input-container::before {
    content: '';
    position: absolute;
    top: 0;
    left: 20px;
    right: 20px;
    height: 1px;
    background: linear-gradient(to right, transparent, #e9ecef, transparent);
}

.wpcai-input-group {
    display: flex;
    gap: 12px;
    align-items: flex-end;
}

.wpcai-chat-input {
    flex: 1;
    padding: 14px 18px;
    border: 2px solid #e9ecef;
    border-radius: 25px;
    font-size: 14px;
    outline: none;
    transition: all 0.3s ease;
    background: #f8f9fa;
    resize: none;
    min-height: 20px;
    max-height: 100px;
    font-family: inherit;
}

.wpcai-chat-input:focus {
    border-color: #007cba;
    background: #ffffff;
    box-shadow: 0 0 0 3px rgba(0, 124, 186, 0.1);
}

.wpcai-chat-input::placeholder {
    color: #6c757d;
}

.wpcai-chat-submit {
    background: linear-gradient(135deg, #007cba 0%, #0056b3 100%);
    color: white;
    border: none;
    border-radius: 25px;
    padding: 14px 20px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 600;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 8px;
    min-width: 80px;
    justify-content: center;
    box-shadow: 0 2px 8px rgba(0, 124, 186, 0.3);
}

.wpcai-chat-submit:hover {
    background: linear-gradient(135deg, #0056b3 0%, #004085 100%);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(0, 124, 186, 0.4);
}

.wpcai-chat-submit:active {
    transform: translateY(0);
}

.wpcai-chat-submit:disabled {
    background: #6c757d;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

.wpcai-submit-loading svg {
    animation: spin 1s linear infinite;
}

@keyframes spin {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}

/* Links in messages */
.wpcai-message-content a {
    color: inherit;
    text-decoration: underline;
    font-weight: 600;
}

.wpcai-message-user .wpcai-message-content a {
    color: rgba(255, 255, 255, 0.9);
}

.wpcai-message-bot .wpcai-message-content a {
    color: #007cba;
}

.wpcai-message-content a:hover {
    text-decoration: none;
}

/* Mobile responsiveness */
@media (max-width: 480px) {
    .wpcai-chat-widget {
        bottom: 10px !important;
        right: 10px !important;
        left: 10px !important;
        top: auto !important;
    }

    .wpcai-chat-window {
        width: 100%;
        height: calc(100vh - 100px);
        max-height: 600px;
        bottom: 70px;
        right: 0;
        left: 0;
        border-radius: 16px 16px 0 0;
    }

    .wpcai-chat-toggle {
        width: 56px;
        height: 56px;
        position: fixed;
        bottom: 20px;
        right: 20px;
    }

    .wpcai-chat-header {
        padding: 16px 20px;
    }

    .wpcai-chat-title {
        font-size: 16px;
    }

    .wpcai-chat-messages {
        padding: 16px;
    }

    .wpcai-message-content {
        max-width: 90%;
        font-size: 14px;
    }

    .wpcai-chat-input-container {
        padding: 16px;
    }

    .wpcai-input-group {
        gap: 10px;
    }

    .wpcai-chat-input {
        padding: 12px 16px;
        font-size: 16px; /* Prevent zoom on iOS */
    }

    .wpcai-chat-submit {
        padding: 12px 16px;
        min-width: 70px;
    }
}

@media (max-width: 320px) {
    .wpcai-chat-window {
        height: calc(100vh - 80px);
    }

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

    .wpcai-chat-input-container {
        padding: 12px;
    }
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    .wpcai-chat-toggle {
        border: 2px solid #000;
    }

    .wpcai-message-content {
        border: 2px solid #000;
    }

    .wpcai-chat-input {
        border: 2px solid #000;
    }
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
    .wpcai-chat-toggle,
    .wpcai-chat-control,
    .wpcai-chat-submit,
    .wpcai-message {
        transition: none;
        animation: none;
    }

    .wpcai-typing-dots span {
        animation: none;
    }

    .wpcai-submit-loading svg {
        animation: none;
    }
}

/* Dark mode support */
@media (prefers-color-scheme: dark) {
    .wpcai-chat-window {
        background: #2d3748;
        border-color: #4a5568;
    }

    .wpcai-chat-messages {
        background: linear-gradient(to bottom, #2d3748 0%, #1a202c 100%);
    }

    .wpcai-message-bot .wpcai-message-content {
        background: #4a5568;
        color: #e2e8f0;
        border-color: #718096;
    }

    .wpcai-message-bot .wpcai-message-content::before {
        border-right-color: #4a5568;
    }

    .wpcai-message-bot .wpcai-message-content::after {
        border-right-color: #718096;
    }

    .wpcai-chat-input-container {
        background: #2d3748;
        border-color: #4a5568;
    }

    .wpcai-chat-input {
        background: #4a5568;
        border-color: #718096;
        color: #e2e8f0;
    }

    .wpcai-chat-input::placeholder {
        color: #a0aec0;
    }

    .wpcai-message-timestamp {
        color: #a0aec0;
    }
}

/* Print styles */
@media print {
    .wpcai-chat-widget {
        display: none !important;
    }
}