/**
 * Chat Interface Styles
 *
 * Complete WhatsApp-like dark theme chat UI.
 * Production-ready, zero placeholders.
 *
 * @package   Mesopotamia_V2
 * @version   2.0.0
 */

/*==================================================
  Chat Container
==================================================*/
.meso-chat {
    display: flex;
    flex-direction: column;
    height: 100vh;
    height: 100dvh;
    max-width: 100%;
    margin: 0 auto;
    background-color: var(--chat-bg);
    position: relative;
}

@media (min-width: 768px) {
    .meso-chat {
        max-width: var(--chat-max-width);
        height: 90vh;
        margin: 5vh auto;
        border-radius: var(--radius-lg);
        box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
        overflow: hidden;
    }
}

/*==================================================
  Header
==================================================*/
.meso-chat__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-md) var(--spacing-lg);
    background-color: var(--chat-header-bg);
    border-bottom: 1px solid var(--chat-border);
    flex-shrink: 0;
    min-height: 60px;
}

.meso-chat__header-info {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.meso-chat__logo,
.meso-chat__avatar {
    width: 42px;
    height: 42px;
    border-radius: var(--radius-full);
    object-fit: cover;
    flex-shrink: 0;
}

.meso-chat__avatar {
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--chat-accent);
    color: white;
}

.meso-chat__avatar svg {
    width: 24px;
    height: 24px;
}

.meso-chat__header-text {
    display: flex;
    flex-direction: column;
}

.meso-chat__title {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--chat-text);
    margin: 0;
    line-height: 1.2;
}

.meso-chat__status {
    font-size: var(--font-size-sm);
    color: var(--chat-accent);
}

.meso-chat__cart-btn {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    border: none;
    border-radius: var(--radius-full);
    background-color: rgba(0, 168, 132, 0.15);
    color: var(--chat-accent);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.meso-chat__cart-btn:hover,
.meso-chat__cart-btn:focus {
    background-color: rgba(0, 168, 132, 0.25);
    transform: scale(1.05);
}

.meso-chat__cart-btn svg {
    width: 24px;
    height: 24px;
}

.meso-chat__cart-badge {
    position: absolute;
    top: -4px;
    inset-inline-start: -4px;
    min-width: 20px;
    height: 20px;
    padding: 0 6px;
    background-color: #dc2626;
    color: white;
    font-size: 11px;
    font-weight: 700;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.meso-chat__cart-badge:empty,
.meso-chat__cart-badge[data-cart-count="0"] {
    display: none;
}

/*==================================================
  Messages Area
==================================================*/
.meso-chat__messages {
    flex: 1;
    overflow-y: auto;
    overflow-x: hidden;
    padding: var(--spacing-lg);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    scroll-behavior: smooth;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: thin;
    scrollbar-color: var(--chat-border) transparent;
}

.meso-chat__messages::-webkit-scrollbar {
    width: 6px;
}

.meso-chat__messages::-webkit-scrollbar-track {
    background: transparent;
}

.meso-chat__messages::-webkit-scrollbar-thumb {
    background-color: var(--chat-border);
    border-radius: 3px;
}

/*==================================================
  Message Bubbles
==================================================*/
.meso-message {
    display: flex;
    flex-direction: column;
    max-width: 85%;
    animation: meso-fade-in 0.2s ease-out;
}

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

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.meso-message--user {
    align-self: flex-start;
}

.meso-message--bot {
    align-self: flex-end;
}

.meso-message__bubble {
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    word-wrap: break-word;
    position: relative;
}

.meso-message--user .meso-message__bubble {
    background-color: var(--chat-bubble-user);
    border-bottom-inline-start-radius: var(--spacing-xs);
}

.meso-message--bot .meso-message__bubble {
    background-color: var(--chat-bubble-bot);
    border-bottom-inline-end-radius: var(--spacing-xs);
}

.meso-message__time {
    font-size: 11px;
    color: var(--chat-text-muted);
    margin-top: var(--spacing-xs);
    text-align: end;
}

.meso-message--user .meso-message__time {
    text-align: start;
}

/*==================================================
  Typing Indicator
==================================================*/
.meso-typing {
    display: flex;
    align-items: center;
    gap: 4px;
    padding: var(--spacing-md);
    background-color: var(--chat-bubble-bot);
    border-radius: var(--radius-md);
    width: fit-content;
}

.meso-typing__dot {
    width: 8px;
    height: 8px;
    background-color: var(--chat-text-muted);
    border-radius: 50%;
    animation: meso-typing 1.4s infinite ease-in-out;
}

.meso-typing__dot:nth-child(1) {
    animation-delay: 0s;
}

.meso-typing__dot:nth-child(2) {
    animation-delay: 0.2s;
}

.meso-typing__dot:nth-child(3) {
    animation-delay: 0.4s;
}

@keyframes meso-typing {

    0%,
    80%,
    100% {
        transform: scale(0.8);
        opacity: 0.5;
    }

    40% {
        transform: scale(1);
        opacity: 1;
    }
}

/*==================================================
  Input Area
==================================================*/
.meso-chat__input-area {
    display: flex;
    align-items: flex-end;
    gap: var(--spacing-sm);
    padding: var(--spacing-md);
    background-color: var(--chat-input-bg);
    border-top: 1px solid var(--chat-border);
    flex-shrink: 0;
}

.meso-chat__input {
    flex: 1;
    min-height: 44px;
    max-height: 120px;
    padding: var(--spacing-sm) var(--spacing-md);
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    color: var(--chat-text);
    background-color: var(--chat-card-bg);
    border: 1px solid var(--chat-border);
    border-radius: var(--radius-md);
    resize: none;
    transition: border-color var(--transition-fast);
}

.meso-chat__input:focus {
    outline: none;
    border-color: var(--chat-accent);
}

.meso-chat__send-btn {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: none;
    border-radius: var(--radius-full);
    background-color: var(--chat-accent);
    color: white;
    cursor: pointer;
    transition: all var(--transition-fast);
    flex-shrink: 0;
}

.meso-chat__send-btn:hover:not(:disabled) {
    background-color: #008f70;
    transform: scale(1.05);
}

.meso-chat__send-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.meso-chat__send-btn svg {
    width: 24px;
    height: 24px;
}