/* ======================================================
   Theme variables + Dark mode (LiveChat-style: Option B)
   ====================================================== */
:root {
    /* Primary / accents */
    --primary-color: #2b60d0; /* default primary */
    --primary-hover: #1f4cb8;

    /* Popup backgrounds & text */
    --popup-bg: #f7f7f7;
    --popup-text: #1f2937;

    /* Message bubbles */
    --bubble-user-bg: var(--primary-color);
    --bubble-user-text: #ffffff;

    --bubble-bot-bg: #ffffff;
    --bubble-bot-text: #1f2937;

    /* Header / icons */
    --header-bg: transparent;
    --header-icon: #1f2937;

    /* Inputs / footer */
    --input-bg: #ffffff;
    --input-text: #374151;
    --footer-bg: #ffffff;
    --footer-icon: #9ca3af;

    /* Chat-bubble (floating) */
    --bubble-button-bg: #1f2937;
    --bubble-button-icon: #ffffff;

    /* Misc */
    --muted: #9ca3af;
    --success: #10b981;
    --shadow: rgba(0, 0, 0, 0.15);
}

/* LiveChat-style dark mode overrides
   Applied to the theme root element .theme-root.dark-mode */
.theme-root.dark-mode,
#chat-widget-container.dark-mode,
#chat-popup.dark-mode {
    --popup-bg: #1e1e1e; /* LiveChat-like dark grey */
    --popup-text: #f5f5f5;

    --bubble-user-bg: var(--primary-color);
    --bubble-user-text: #ffffff;

    --bubble-bot-bg: #2b2b2b;
    --bubble-bot-text: #e6e6e6;

    --header-bg: rgba(0, 0, 0, 0.16);
    --header-icon: #ffffff;

    --input-bg: #2b2b2b;
    --input-text: #f2f2f2;

    --footer-bg: #2b2b2b;
    --footer-icon: #e6e6e6;

    --bubble-button-bg: #111111;
    --bubble-button-icon: #ffffff;

    --muted: #9aa0a6;
    --shadow: rgba(0, 0, 0, 0.6);
}

/* Utility to ensure SVGs follow the theme */
.theme-root svg,
#chat-popup svg,
#chat-widget-container svg {
    color: var(--header-icon);
    stroke: var(--header-icon) !important;
}

/* ======================================================
   Base widget layout (uses variables defined above)
   ====================================================== */

/* Widget Container */
#chat-widget-container {
    position: fixed;
    bottom: 20px;
    right: 20px;
    z-index: 9999;
    pointer-events: auto;
}

/* Chat Bubble (floating button) */
#chat-bubble {
    width: 60px;
    height: 60px;
    background-color: var(--bubble-button-bg);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.12);
    transition: transform 0.2s, background-color 0.15s;
}
#chat-bubble:hover {
    transform: scale(1.05);
}
#chat-bubble svg {
    width: 32px;
    height: 32px;
    color: var(--bubble-button-icon);
    stroke: var(--bubble-button-icon) !important;
}

/* Chat Popup Window */
#chat-popup {
    position: absolute;
    bottom: 80px;
    right: 0;
    width: 380px;
    height: 650px;
    max-height: 80vh;
    background-color: var(--popup-bg);
    color: var(--popup-text);
    border-radius: 12px;
    box-shadow: 0 5px 25px var(--shadow);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    transition: all 0.28s ease;
    opacity: 1;
    transform: scale(1);
    transform-origin: bottom right;
}

/* .hidden state */
#chat-popup.hidden {
    display: none;
    opacity: 0;
    transform: scale(0.95);
}
.hidden {
    display: none !important;
}

/* --- HOME SCREEN STYLES --- */
#chat-home-screen {
    flex: 1;
    display: flex;
    flex-direction: column;
    padding: 20px;
    /* subtle gradient that adapts via variables */
    background: linear-gradient(135deg, rgba(0, 0, 0, 0.02) 0%, transparent 100%), var(--popup-bg);
}

/* Home headings */
.home-header {
    font-size: 28px;
    font-weight: 300;
    color: var(--popup-text);
    margin-top: 20px;
}
.home-title {
    font-size: 36px;
    font-weight: 700;
    color: var(--popup-text);
    margin-bottom: 30px;
}

/* Admin card */
.admin-card {
    background: var(--bubble-bot-bg);
    padding: 20px;
    border-radius: 12px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.04);
    color: var(--bubble-bot-text);
}
.admin-info {
    font-size: 14px;
    color: var(--bubble-bot-text);
    margin: 15px 0;
}

/* Start chat CTA */
.start-chat-btn {
    width: 100%;
    padding: 12px;
    background-color: var(--primary-color);
    color: var(--bubble-user-text);
    border: none;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    transition: background-color 0.15s;
}
.start-chat-btn:hover {
    background-color: var(--primary-hover);
}
.start-chat-btn svg {
    transform: rotate(90deg);
    color: inherit;
    stroke: currentColor;
}

/* --- CONVERSATION SCREEN STYLES --- */
#chat-conversation {
    display: flex;
    flex-direction: column;
    height: 100%;
    flex: 1;
}

/* Header Styling (Inside Conversation) */
#chat-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 15px;
    padding-bottom: 40px;
    background-color: var(--header-bg);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
    z-index: 10;
    mask: linear-gradient(black 70%, rgba(0, 0, 0, 0) 100%);
    backdrop-filter: blur(8px);
}

/* header groups */
.header-left,
.header-right {
    display: flex;
    gap: 8px;
}

/* Icon buttons in header */
.icon-btn {
    background: none;
    border: none;
    cursor: pointer;
    padding: 6px;
    color: var(--header-icon);
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: background 0.12s;
}
.icon-btn:hover {
    background: rgba(0, 0, 0, 0.06);
}

/* Admin Badge Pill */
.admin-badge {
    background: var(--bubble-bot-bg);
    padding: 4px 7px 4px;
    border-radius: 20px;
    display: flex;
    align-items: center;
    gap: 8px;
    box-shadow: none;
}
.avatar-circle {
    width: 28px;
    height: 28px;
    background: #6a5acd; /* still a brand color; can be made var if needed */
    color: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    font-size: 14px;
    position: relative;
}
.status-dot {
    position: absolute;
    bottom: 0;
    right: 0;
    width: 8px;
    height: 8px;
    background-color: var(--success);
    border-radius: 50%;
    border: 2px solid white;
}
.admin-text {
    font-weight: 600;
    font-size: 14px;
    color: var(--popup-text);
}

/* Options Menu (Top Left) */
#options-menu {
    position: absolute;
    top: 60px;
    left: 20px;
    width: 220px;
    background: var(--bubble-bot-bg);
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
    padding: 10px;
    z-index: 200;
}
.options-item {
    display: flex;
    align-items: center;
    padding: 12px;
    color: var(--bubble-bot-text);
    cursor: pointer;
    border-radius: 8px;
    font-size: 14px;
    gap: 10px;
    transition: background 0.12s;
}
.options-item:hover {
    background-color: rgba(0, 0, 0, 0.04);
}
.options-item span:nth-child(2) {
    flex: 1;
}

/* Toggle Switch styles (keeps same visuals but colors adapt) */
.switch {
    position: relative;
    display: inline-block;
    width: 36px;
    height: 20px;
}
.switch input {
    opacity: 0;
    width: 0;
    height: 0;
}
.slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: #bfc6cc;
    transition: 0.3s;
    border-radius: 999px;
    width: auto;
    height: auto;
}
.slider:before {
    position: absolute;
    content: '';
    height: 16px;
    width: 16px;
    left: 2px;
    bottom: 2px;
    background-color: #fff;
    transition: 0.3s;
    border-radius: 50%;
}
.switch input:checked + .slider {
    background-color: var(--primary-color);
}
.switch input:checked + .slider:before {
    transform: translateX(16px);
}

/* Messages Area */
#chat-messages {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 15px;
    padding: 20px;
    background: transparent;
    overscroll-behavior: contain;
    overflow-y: auto;
    position: relative;
    margin-top: -32px;
}

/* Message Containers */
.message-container {
    display: flex;
    flex-direction: column;
    max-width: 80%;
}
.message-container.user {
    align-self: flex-end;
    align-items: flex-end;
}
.message-container.bot {
    align-self: flex-start;
}

/* Message Bubbles - use variables */
.message-bubble {
    padding: 12px 16px;
    font-size: 14px;
    line-height: 1.4;
    position: relative;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.04);
    word-wrap: break-word;
}

/* Bot bubble */
.message-bubble.bot {
    background-color: var(--bubble-bot-bg);
    color: var(--bubble-bot-text);
    border-radius: 12px 12px 12px 2px;
}

/* User bubble - tied to primary variable */
.message-bubble.user {
    background-color: var(--bubble-user-bg);
    color: var(--bubble-user-text);
    border-radius: 12px 12px 2px 12px;
}

/* Chat images */
.chat-image {
    max-width: 100%;
    border-radius: 8px;
    margin-top: 5px;
    display: block;
    max-height: 200px;
    cursor: pointer;
}

/* Read status */
.read-status {
    font-size: 10px;
    color: var(--muted);
    margin-top: 4px;
    text-align: right;
}

/* --- FILE PREVIEW STYLES --- */
#file-upload-preview {
    background: var(--bubble-bot-bg);
    z-index: 15;
    margin: 0 20px;
    border-radius: 24px;
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.08);
    color: var(--bubble-bot-text);
    position: absolute;
    bottom: 74px;
    left: 0;
    right: 0;
}

/* collapsed state animations */
#file-upload-preview.collapsed .preview-list {
    max-height: 0;
    padding-top: 0;
    padding-bottom: 0;
    overflow: hidden;
    transition: max-height 0.28s ease-out, padding 0.28s ease-out;
}

/* preview header */
.preview-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-bottom: 10px;
    border-bottom: 1px solid rgba(0, 0, 0, 0.04);
    font-size: 14px;
    font-weight: 500;
    color: var(--bubble-bot-text);
    cursor: pointer;
    padding: 15px 20px;
}
.preview-count {
    display: flex;
    align-items: center;
    gap: 5px;
    position: relative;
}
.preview-count::before {
    content: '';
    display: inline-block;
    width: 16px;
    height: 16px;
    background-color: var(--success);
    border-radius: 50%;
    position: relative;
}
.preview-count::after {
    content: '✓';
    color: white;
    font-size: 10px;
    position: absolute;
    left: 4px;
    top: 3px;
}

.preview-list {
    display: flex;
    gap: 10px;
    overflow-x: auto;
    max-height: 160px;
    transition: max-height 0.28s ease-out, padding 0.28s ease-out;
    padding: 15px 20px;
}

/* File preview items */
.file-preview-item {
    position: relative;
    width: 120px;
    height: 120px;
    flex-shrink: 0;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.08);
}
.file-preview-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

/* delete icon button */
.delete-file-btn {
    top: 5px;
    right: 5px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    position: absolute;
    width: 25px;
    height: 25px;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24'%3E%3Cpath fill='currentColor' d='M2.75 6.167c0-.46.345-.834.771-.834h2.665c.529-.015.996-.378 1.176-.916l.03-.095l.115-.372c.07-.228.131-.427.217-.605c.338-.702.964-1.189 1.687-1.314c.184-.031.377-.031.6-.031h3.478c.223 0 .417 0 .6.031c.723.125 1.35.612 1.687 1.314c.086.178.147.377.217.605l.115.372l.03.095c.18.538.74.902 1.27.916h2.57c.427 0 .772.373.772.834S20.405 7 19.979 7H3.52c-.426 0-.771-.373-.771-.833M11.607 22h.787c2.707 0 4.06 0 4.941-.863c.88-.864.97-2.28 1.15-5.111l.26-4.081c.098-1.537.147-2.305-.295-2.792s-1.187-.487-2.679-.487H8.23c-1.491 0-2.237 0-2.679.487s-.392 1.255-.295 2.792l.26 4.08c.18 2.833.27 4.248 1.15 5.112S8.9 22 11.607 22' /%3E%3C/svg%3E");
    background-size: 15px;
    background-position: center;
    background-repeat: no-repeat;
    border: none;
    background-color: var(--bubble-bot-bg);
    padding: 0;
}

/* alt text button */
.file-preview-item .alt-text-btn {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    padding: 2px 0;
    background-color: rgba(0, 0, 0, 0.7);
    color: white;
    font-size: 10px;
    text-align: center;
    border: none;
    cursor: pointer;
}

/* Menus (Emoji/Attachment) */
#attachment-menu,
#emoji-menu {
    position: absolute;
    bottom: 80px;
    left: 20px;
    background: var(--bubble-bot-bg);
    border-radius: 12px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.12);
    padding: 8px;
    z-index: 100;
    width: 200px;
    color: var(--bubble-bot-text);
}
#emoji-menu {
    left: auto;
    right: 20px;
    width: 250px;
}
.menu-item {
    display: flex;
    align-items: center;
    gap: 10px;
    width: 100%;
    padding: 10px;
    border: none;
    background: none;
    cursor: pointer;
    border-radius: 8px;
    color: var(--bubble-bot-text);
    font-size: 14px;
    transition: background 0.12s;
}
.menu-item:hover {
    background-color: rgba(0, 0, 0, 0.04);
}
.emoji-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 5px;
}
.emoji-grid span {
    font-size: 20px;
    padding: 5px;
    cursor: pointer;
    text-align: center;
    border-radius: 4px;
}
.emoji-grid span:hover {
    background-color: rgba(0, 0, 0, 0.04);
}

/* Input Area */
#chat-input-container {
    padding: 10px 20px;
    background-color: var(--popup-bg);
    z-index: 10;
}
.input-pill {
    background: var(--input-bg);
    border-radius: 30px;
    display: flex;
    align-items: center;
    padding: 6px;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.05);
}
#chat-input {
    flex: 1;
    border: none;
    outline: none;
    font-size: 14px;
    color: var(--input-text);
    margin: 0 10px;
    padding-left: 0;
    background: transparent;
}
#chat-input::placeholder {
    color: var(--muted);
}
.input-action-btn {
    background: transparent;
    border: none;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    color: var(--footer-icon);
    transition: background 0.12s;
    margin-right: 5px;
}
.input-action-btn:hover {
    background: rgba(0, 0, 0, 0.04);
}

/* send button */
.send-btn {
    background: #e5e7eb;
    border: none;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    color: #6b7280;
    transition: all 0.12s;
}
.send-btn:hover {
    background: #d1d5db;
    color: #374151;
}

/* --- FOOTER NAVIGATION STYLES --- */
#chat-footer {
    display: flex;
    justify-content: space-around;
    align-items: center;
    padding: 10px 0;
    background-color: var(--footer-bg);
    border-top: 1px solid rgba(0, 0, 0, 0.04);
    box-shadow: 0 -2px 5px rgba(0, 0, 0, 0.04);
    margin: 0 10px;
    border-radius: 20px;
}
.tab-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    background: none;
    border: none;
    cursor: pointer;
    color: var(--footer-icon);
    font-size: 12px;
    font-weight: 500;
    padding: 5px 15px;
    transition: color 0.12s;
}
.tab-btn.active-tab {
    color: var(--primary-color);
}
.tab-btn svg {
    width: 24px;
    height: 24px;
    margin-bottom: 2px;
    stroke: currentColor;
}

/* --- MODAL STYLES --- */
#image-preview-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.9);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10000;
}
#modal-content {
    position: relative;
    max-width: 90%;
    max-height: 90%;
    display: flex;
    align-items: center;
    justify-content: center;
}
#modal-image {
    max-width: 100%;
    max-height: 100vh;
    object-fit: contain;
}
#close-modal-btn {
    position: absolute;
    top: 20px;
    right: 30px;
    color: white;
    font-size: 40px;
    font-weight: bold;
    background: none;
    border: none;
    cursor: pointer;
    line-height: 1;
    padding: 0;
    opacity: 0.85;
    transition: opacity 0.12s;
}
#close-modal-btn:hover {
    opacity: 1;
}

/* small UI helpers */
.input-action-btn.active {
    background: rgba(0, 0, 0, 0.06);
}
.icon-btn.active {
    background: rgba(0, 0, 0, 0.06);
}

#start-chat-btn svg {
    stroke: #fff !important;
}



/* Responsive: mobile full-screen popup */
@media (max-width: 768px) {
    #chat-popup {
        position: fixed;
        top: 0;
        right: 0;
        bottom: 0;
        left: 0;
        width: 100%;
        height: 100%;
        max-height: 100%;
        border-radius: 0;
    }
}