/**
 * Kontra AI Chat Widget Styles
 *
 * @package KontraAIChat
 */

/* CSS Variables */
:root {
    --kontra-chat-primary: #3b82f6;
    --kontra-chat-primary-dark: #2563eb;
    --kontra-chat-secondary: #fbbf24;
    --kontra-chat-bg: #ffffff;
    --kontra-chat-bg-dark: #f3f4f6;
    --kontra-chat-text: #1f2937;
    --kontra-chat-text-light: #6b7280;
    --kontra-chat-border: #e5e7eb;
    --kontra-chat-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);
    --kontra-chat-radius: 16px;
    --kontra-chat-radius-sm: 8px;
    --kontra-chat-font: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
}

/* Widget Container */
.kontra-chat-widget {
    position: fixed;
    bottom: 20px;
    right: 20px;
    z-index: 999999;
    font-family: var(--kontra-chat-font);
}

/* Toggle Button */
.kontra-chat-toggle {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--kontra-chat-primary) 0%, var(--kontra-chat-primary-dark) 100%);
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    box-shadow: var(--kontra-chat-shadow);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.kontra-chat-toggle:hover {
    transform: scale(1.05);
    box-shadow: 0 15px 30px -5px rgba(59, 130, 246, 0.4);
}

.kontra-chat-toggle:focus {
    outline: 2px solid var(--kontra-chat-secondary);
    outline-offset: 2px;
}

.kontra-chat-icon-close {
    display: none;
}

.kontra-chat-widget.is-open .kontra-chat-icon-open {
    display: none;
}

.kontra-chat-widget.is-open .kontra-chat-icon-close {
    display: block;
}

/* Chat Window */
.kontra-chat-window {
    position: absolute;
    bottom: 80px;
    right: 0;
    width: 380px;
    max-width: calc(100vw - 40px);
    height: 500px;
    max-height: calc(100vh - 150px);
    background: var(--kontra-chat-bg);
    border-radius: var(--kontra-chat-radius);
    box-shadow: var(--kontra-chat-shadow);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px) scale(0.95);
    transition: opacity 0.3s ease, transform 0.3s ease, visibility 0.3s ease;
}

.kontra-chat-widget.is-open .kontra-chat-window {
    opacity: 1;
    visibility: visible;
    transform: translateY(0) scale(1);
}

/* Header */
.kontra-chat-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 20px;
    background: linear-gradient(135deg, var(--kontra-chat-primary) 0%, var(--kontra-chat-primary-dark) 100%);
    color: white;
}

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

.kontra-chat-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.2);
    display: flex;
    align-items: center;
    justify-content: center;
}

.kontra-chat-header-text {
    display: flex;
    flex-direction: column;
}

.kontra-chat-title {
    font-weight: 600;
    font-size: 14px;
}

.kontra-chat-status {
    font-size: 12px;
    opacity: 0.8;
}

.kontra-chat-close {
    background: transparent;
    border: none;
    color: white;
    cursor: pointer;
    padding: 8px;
    border-radius: 50%;
    transition: background 0.2s ease;
}

.kontra-chat-close:hover {
    background: rgba(255, 255, 255, 0.1);
}

/* Messages Area */
.kontra-chat-messages {
    flex: 1;
    overflow-y: auto;
    padding: 20px;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

/* Message Bubbles */
.kontra-chat-message {
    max-width: 85%;
    padding: 12px 16px;
    border-radius: var(--kontra-chat-radius);
    font-size: 14px;
    line-height: 1.5;
    word-wrap: break-word;
}

.kontra-chat-message.user {
    align-self: flex-end;
    background: var(--kontra-chat-primary);
    color: white;
    border-bottom-right-radius: 4px;
}

.kontra-chat-message.assistant {
    align-self: flex-start;
    background: var(--kontra-chat-bg-dark);
    color: var(--kontra-chat-text);
    border-bottom-left-radius: 4px;
}

/* Markdown in messages */
.kontra-chat-message a {
    color: inherit;
    text-decoration: underline;
}

.kontra-chat-message.user a {
    color: white;
}

.kontra-chat-message strong,
.kontra-chat-message b {
    font-weight: 600;
}

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

.kontra-chat-message li {
    margin: 4px 0;
}

/* Typing Indicator */
.kontra-chat-typing {
    padding: 0 20px 12px;
    display: flex;
    gap: 4px;
}

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

.kontra-chat-typing-dot:nth-child(1) {
    animation-delay: 0s;
}

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

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

@keyframes typingBounce {
    0%, 60%, 100% {
        transform: translateY(0);
        opacity: 0.5;
    }
    30% {
        transform: translateY(-4px);
        opacity: 1;
    }
}

/* Input Area */
.kontra-chat-input-container {
    padding: 16px 20px;
    border-top: 1px solid var(--kontra-chat-border);
    background: var(--kontra-chat-bg);
}

.kontra-chat-form {
    display: flex;
    gap: 12px;
}

.kontra-chat-input {
    flex: 1;
    padding: 12px 16px;
    border: 1px solid var(--kontra-chat-border);
    border-radius: var(--kontra-chat-radius-sm);
    font-size: 14px;
    font-family: inherit;
    outline: none;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.kontra-chat-input:focus {
    border-color: var(--kontra-chat-primary);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

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

.kontra-chat-send {
    width: 44px;
    height: 44px;
    border: none;
    border-radius: var(--kontra-chat-radius-sm);
    background: var(--kontra-chat-primary);
    color: white;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.2s ease, transform 0.2s ease;
}

.kontra-chat-send:hover {
    background: var(--kontra-chat-primary-dark);
}

.kontra-chat-send:active {
    transform: scale(0.95);
}

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

/* Error Message */
.kontra-chat-error {
    background: #fef2f2 !important;
    color: #dc2626 !important;
    border: 1px solid #fecaca;
}

/* Mobile Styles */
@media (max-width: 480px) {
    .kontra-chat-widget {
        bottom: 10px;
        right: 10px;
    }

    .kontra-chat-toggle {
        width: 56px;
        height: 56px;
    }

    .kontra-chat-window {
        bottom: 70px;
        right: -10px;
        width: calc(100vw - 20px);
        height: calc(100vh - 100px);
        max-height: none;
        border-radius: var(--kontra-chat-radius-sm);
    }

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

    .kontra-chat-input-container {
        padding: 12px 16px;
    }
}

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

/* Privacy link */
.kontra-chat-privacy {
    text-align: center;
    padding: 4px 0 2px;
}

.kontra-chat-privacy a {
    font-size: 10px;
    color: var(--kontra-chat-text-light);
    text-decoration: none;
    opacity: 0.7;
}

.kontra-chat-privacy a:hover {
    opacity: 1;
    text-decoration: underline;
}

/* Pending state */
.kontra-chat-pending {
    padding: 12px 16px;
    margin: 8px 12px;
    background: var(--kontra-chat-bg-dark);
    border-radius: var(--kontra-chat-radius-sm);
    font-size: 13px;
    color: var(--kontra-chat-text);
}

.kontra-chat-pending-text {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 12px;
    font-weight: 500;
}

.kontra-chat-pending-spinner {
    display: inline-block;
    width: 14px;
    height: 14px;
    border: 2px solid var(--kontra-chat-border);
    border-top-color: var(--kontra-chat-primary);
    border-radius: 50%;
    animation: kontra-spin 0.8s linear infinite;
    flex-shrink: 0;
}

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

/* Email capture */
.kontra-chat-email-capture p {
    margin: 0 0 8px;
    color: var(--kontra-chat-text-light);
    font-size: 12px;
}

.kontra-chat-email-form {
    display: flex;
    gap: 6px;
}

.kontra-chat-email-input {
    flex: 1;
    padding: 6px 10px;
    border: 1px solid var(--kontra-chat-border);
    border-radius: var(--kontra-chat-radius-sm);
    font-size: 13px;
    font-family: var(--kontra-chat-font);
    background: var(--kontra-chat-bg);
    color: var(--kontra-chat-text);
}

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

.kontra-chat-email-send {
    padding: 6px 12px;
    background: var(--kontra-chat-primary);
    color: white;
    border: none;
    border-radius: var(--kontra-chat-radius-sm);
    font-size: 12px;
    font-weight: 500;
    cursor: pointer;
    white-space: nowrap;
}

.kontra-chat-email-send:hover {
    background: var(--kontra-chat-primary-dark);
}

.kontra-chat-email-saved {
    color: #22c55e;
    font-size: 12px;
    margin: 0;
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
    .kontra-chat-toggle,
    .kontra-chat-window,
    .kontra-chat-typing-dot,
    .kontra-chat-pending-spinner {
        transition: none;
        animation: none;
    }
}

/* Dark Mode Support (optional) */
@media (prefers-color-scheme: dark) {
    .kontra-chat-widget {
        --kontra-chat-bg: #1f2937;
        --kontra-chat-bg-dark: #374151;
        --kontra-chat-text: #f9fafb;
        --kontra-chat-text-light: #9ca3af;
        --kontra-chat-border: #4b5563;
    }

    .kontra-chat-input {
        background: var(--kontra-chat-bg-dark);
        color: var(--kontra-chat-text);
    }
}