/* Base styles, resets, and core structure for WinaltChat */
/* Reviewer note: this file defines foundational tokens and shared primitives.
 * More specific visual overrides are intentionally split into theme/layout files.
 */

/* Base variables - will be overridden by JS */
:root {
    --ai-primary: #2563eb;
    --ai-text: #ffffff;
    --ai-background: #ffffff;
    --ai-border: #e5e7eb;
    --ai-ai-bubble: #ffffff;
    --ai-ai-text: #1f2937;
    --ai-font-size: 14px;
    --ai-font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    --ai-primary-rgb: 37, 99, 235;
}

/* Box sizing and font reset */
#winaltchat-root * { 
    box-sizing: border-box; 
    font-family: var(--ai-font-family); 
}

/* Base button styles */
.winaltchat-chat button {
    border: none;
    background: none;
    cursor: pointer;
    font-family: inherit;
}

/* Prevent tap highlight on mobile */
.ai-btn, .ai-action-btn, .portal-btn, #ai-send {
    -webkit-tap-highlight-color: transparent;
}

/* Flex container utility */
.ai-amazon-btn-container {
    display: flex;
    justify-content: center;
    width: 100%;
    margin: 15px 0 5px 0;
}

/* Remove focus styles */
.winaltchat-chat button:focus,
.winaltchat-chat input:focus,
.winaltchat-chat a:focus {
    outline: none !important;
    box-shadow: none !important;
}

/* Remove default browser focus styles */
.ai-btn:focus-visible,
.ai-action-btn:focus-visible,
.portal-btn:focus-visible,
#ai-send:focus-visible {
    outline: 2px solid transparent !important;
    outline-offset: 2px !important;
}

/* ================================================ */
/* CHAT BUTTON POSITIONING */
/* ================================================ */
.ai-chat-button-wrapper {
    position: fixed !important;
    bottom: 20px !important;
    right: 20px !important;
    width: 80px !important;
    height: 80px !important;
    z-index: 999997 !important;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
}

.ai-btn {
    position: absolute !important;
    width: 60px !important;
    height: 60px !important;
    border-radius: 50% !important;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    font-size: 28px !important;
    box-shadow: 0 4px 20px rgba(0,0,0,0.15) !important;
    z-index: 999999 !important;
    cursor: pointer !important;
    color: var(--ai-text) !important;
    background: var(--ai-primary) !important;
    border: none !important;
    transition: all 0.3s ease !important;
    top: 50% !important;
    left: 50% !important;
    transform: translate(-50%, -50%) !important;
    margin: 0 !important;
    padding: 0 !important;
}

.ai-btn:hover {
    transform: translate(-50%, -50%) scale(1.05) !important;
    box-shadow: 0 6px 25px rgba(0,0,0,0.2) !important;
}

.ai-btn.hidden {
    display: none !important;
}

/* Attention ring positioning */
.ai-attention-ring {
    position: absolute !important;
    width: 76px !important;
    height: 76px !important;
    border-radius: 50% !important;
    border: 3px solid var(--ai-primary) !important;
    pointer-events: none !important;
    z-index: 999998 !important;
    opacity: 0 !important;
    top: 50% !important;
    left: 50% !important;
    transform: translate(-50%, -50%) !important;
    box-sizing: border-box !important;
}

/* Blinking animation */
@keyframes ai-pulse-ring {
    0% {
        opacity: 0.8;
        transform: translate(-50%, -50%) scale(0.95);
        box-shadow: 0 0 0 0 rgba(var(--ai-primary-rgb), 0.7);
    }
    70% {
        opacity: 0.4;
        transform: translate(-50%, -50%) scale(1.05);
        box-shadow: 0 0 0 10px rgba(var(--ai-primary-rgb), 0);
    }
    100% {
        opacity: 0.8;
        transform: translate(-50%, -50%) scale(0.95);
        box-shadow: 0 0 0 0 rgba(var(--ai-primary-rgb), 0);
    }
}

.ai-attention-ring.show {
    opacity: 1 !important;
    animation: ai-pulse-ring 2s ease-in-out infinite !important;
}

/* Welcome popup positioning */
.ai-welcome-popup {
    position: absolute !important;
    bottom: 100% !important;
    left: 33% !important;
    transform: translateX(-50%) translateY(-10px) !important;
    background: var(--ai-primary) !important;
    color: var(--ai-text) !important;
    padding: 12px 16px !important;
    border-radius: 12px !important;
    font-size: 14px !important;
    max-width: 220px !important;
    min-width: 160px !important;
    box-shadow: 0 6px 20px rgba(0,0,0,0.15) !important;
    display: none !important;
    opacity: 0 !important;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275) !important;
    z-index: 1000000 !important;
    pointer-events: none !important;
    text-align: center !important;
    white-space: normal !important;
    word-wrap: break-word !important;
    line-height: 1.4 !important;
    margin-bottom: 15px !important;
}

.ai-welcome-popup.show {
    display: block !important;
    opacity: 1 !important;
    transform: translateX(-60%) translateY(5%) !important;
}

/* Arrow pointing DOWN to chat button */
.ai-welcome-popup:after {
    content: '' !important;
    position: absolute !important;
    top: 100% !important;
    left: 63% !important;
    width: 0 !important;
    height: 0 !important;
    border-left: 8px solid transparent !important;
    border-right: 8px solid transparent !important;
    border-top: 8px solid var(--ai-primary) !important;
}

/* ================================================ */
/* WHATSAPP-STYLE CHAT BUBBLES */
/* ================================================ */
.ai-bubble {
    max-width: 85% !important;
    padding: 12px 16px !important;
    border-radius: 18px !important;
    font-size: var(--ai-font-size) !important;
    line-height: 1.4 !important;
    word-wrap: break-word !important;
    position: relative !important;
    font-family: var(--ai-font-family) !important;
    margin-bottom: 4px !important;
}

.ai-bubble.user {
    align-self: flex-end !important;
    background: var(--ai-primary) !important;
    color: #ffffff !important;
    border-bottom-right-radius: 4px !important;
    margin-left: auto !important;
}

.ai-bubble.assistant {
    align-self: flex-start !important;
    background: var(--ai-ai-bubble) !important;
    color: var(--ai-ai-text) !important;
    border: 1px solid var(--ai-border) !important;
    border-bottom-left-radius: 4px !important;
    margin-right: auto !important;
}

.ai-bubble.assistant:empty {
    display: none !important;
}

/* Message container. Assistant rows lay out an avatar next to a column
   holding the bubble/cards/feedback (see .winalt-msg-col in
   chat-layout.css); user rows stay a single bubble as before. */
.ai-msg {
    display: flex !important;
    flex-direction: column !important;
    margin-bottom: 8px !important;
}

.ai-msg.assistant {
    flex-direction: row !important;
    align-items: flex-start !important;
    gap: 8px !important;
}

/* ================================================ */
/* MOBILE HEADER - CLEANED UP (No blue border) */
/* ================================================ */

/* Mobile header - hidden by default */
#ai-header-portal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 56px;
    background: var(--ai-primary);
    color: var(--ai-text);
    padding: 12px 16px;
    align-items: center;
    justify-content: space-between;
    z-index: 999999;
    /* NO border-bottom here - removed the blue line */
    box-sizing: border-box;
}

/* Show mobile header only when chat is open and on mobile */
.ai-window.fullscreen #ai-header-portal {
    display: flex !important;
    visibility: visible !important;
    opacity: 1 !important;
}

/* Hide desktop header on mobile */
@media (max-width: 768px) {
    .ai-header {
        display: none !important;
    }
}

/* Show desktop header on larger screens */
@media (min-width: 769px) {
    .ai-header {
        display: flex !important;
    }
    #ai-header-portal {
        display: none !important;
    }
}

/* ================================================ */
/* GLOBAL FIXES */
/* ================================================ */

/* Fix body scroll when chat is open on mobile */
@media (max-width: 768px) {
    body.ai-chat-open {
        overflow: hidden !important;
        position: static !important;
        width: auto !important;
        height: auto !important;
        touch-action: auto !important;
    }

    body.ai-chat-open #ai-chat-wrapper {
        display: none !important;
    }
}

/* Fix header z-index to stay on top */
#ai-header-portal {
    z-index: 999999 !important;
}

/* ================================================ */
/* SYSTEM MESSAGES & HINTS */
/* ================================================ */

.ai-bubble.system {
    background: rgba(59, 130, 246, 0.1) !important;
    border: 1px solid rgba(59, 130, 246, 0.2) !important;
    color: #1e40af !important;
    font-size: 12px !important;
    padding: 8px 12px !important;
    margin: 5px auto !important;
    max-width: 90% !important;
    text-align: center !important;
    border-radius: 10px !important;
    align-self: center !important;
}

.ai-system-hint {
    animation: fadeInUp 0.5s ease;
}

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