/* ==========================================================================
   ACERO SHOP V1 - Messages Styles
   Real-time messaging interface styles
   Version: 1.0.0
   ========================================================================== */

.messages-page {
    display: flex;
    height: calc(100vh - var(--header-height-mobile));
    max-height: calc(100vh - var(--header-height-mobile));
    background: var(--color-white);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
    margin: 0 auto;
    max-width: var(--container-max-width);
}

.messages-sidebar {
    width: 340px;
    flex-shrink: 0;
    border-right: var(--border-width) solid var(--color-gray-200);
    display: flex;
    flex-direction: column;
    background: var(--color-white);
}

.messages-sidebar-header {
    padding: var(--space-4);
    border-bottom: var(--border-width) solid var(--color-gray-200);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.messages-sidebar-header h2 {
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-semibold);
}

.messages-search {
    padding: var(--space-3) var(--space-4);
    border-bottom: var(--border-width) solid var(--color-gray-200);
    position: relative;
}

.messages-search .form-input {
    width: 100%;
    padding: var(--space-2) var(--space-3);
    font-size: var(--font-size-sm);
}

.user-search-results {
    position: absolute;
    top: 100%;
    left: var(--space-4);
    right: var(--space-4);
    background: var(--color-white);
    border: var(--border-width) solid var(--color-gray-300);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-lg);
    max-height: 240px;
    overflow-y: auto;
    z-index: var(--z-dropdown);
    display: none;
}

.user-search-item {
    padding: var(--space-3) var(--space-4);
    cursor: pointer;
    border-bottom: var(--border-width) solid var(--color-gray-100);
    display: flex;
    flex-direction: column;
    gap: 2px;
    transition: background var(--transition-fast);
}

.user-search-item:hover {
    background: var(--color-gray-50);
}

.user-search-item:last-child {
    border-bottom: none;
}

.conversation-list-container {
    flex: 1;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
}

.conversation-list {
    display: flex;
    flex-direction: column;
}

.conversation-item {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-3) var(--space-4);
    cursor: pointer;
    border-bottom: var(--border-width) solid var(--color-gray-100);
    transition: background var(--transition-fast);
}

.conversation-item:hover {
    background: var(--color-gray-50);
}

.conversation-item.unread {
    background: var(--color-primary-bg);
}

.conversation-avatar {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    overflow: hidden;
    flex-shrink: 0;
    background: var(--color-gray-200);
}

.conversation-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.conversation-avatar-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    color: var(--color-gray-400);
}

.conversation-content {
    flex: 1;
    min-width: 0;
}

.conversation-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 2px;
}

.conversation-name {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    color: var(--color-gray-900);
}

.conversation-time {
    font-size: var(--font-size-xs);
    color: var(--color-gray-500);
    flex-shrink: 0;
}

.conversation-preview {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.conversation-last-msg {
    font-size: var(--font-size-sm);
    color: var(--color-gray-500);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    flex: 1;
}

.messages-main {
    flex: 1;
    display: flex;
    flex-direction: column;
    min-width: 0;
    background: var(--color-gray-50);
}

.messages-empty {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
}

.messages-thread-container {
    flex: 1;
    display: flex;
    flex-direction: column;
    height: 100%;
}

.messages-thread-header {
    padding: var(--space-3) var(--space-4);
    background: var(--color-white);
    border-bottom: var(--border-width) solid var(--color-gray-200);
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.messages-thread-header span {
    font-weight: var(--font-weight-semibold);
    font-size: var(--font-size-base);
}

.messages-thread {
    flex: 1;
    overflow-y: auto;
    padding: var(--space-4);
    -webkit-overflow-scrolling: touch;
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.message-item {
    display: flex;
    max-width: 70%;
}

.message-own {
    align-self: flex-end;
}

.message-other {
    align-self: flex-start;
}

.message-bubble {
    padding: var(--space-3) var(--space-4);
    border-radius: var(--border-radius-lg);
    position: relative;
    word-wrap: break-word;
    overflow-wrap: break-word;
}

.message-own .message-bubble {
    background: var(--color-primary);
    color: var(--color-white);
    border-bottom-right-radius: var(--border-radius-sm);
}

.message-other .message-bubble {
    background: var(--color-white);
    color: var(--color-gray-900);
    border-bottom-left-radius: var(--border-radius-sm);
    box-shadow: var(--shadow-sm);
}

.message-text {
    font-size: var(--font-size-sm);
    line-height: var(--line-height-relaxed);
    margin: 0;
}

.message-time {
    font-size: 10px;
    opacity: 0.7;
    display: block;
    text-align: right;
    margin-top: var(--space-1);
}

.messages-input-container {
    padding: var(--space-3) var(--space-4);
    background: var(--color-white);
    border-top: var(--border-width) solid var(--color-gray-200);
}

.messages-input-form {
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.messages-input-form .form-input {
    flex: 1;
    padding: var(--space-3) var(--space-4);
    border-radius: var(--border-radius-full);
    background: var(--color-gray-50);
    font-size: var(--font-size-sm);
}

.messages-input-form .btn {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    padding: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

/* Mobile Responsive */
@media (max-width: 767px) {
    .messages-page {
        height: calc(100vh - var(--header-height-mobile) - var(--bottom-nav-height));
        max-height: calc(100vh - var(--header-height-mobile) - var(--bottom-nav-height));
        border-radius: 0;
        box-shadow: none;
        margin: 0;
    }

    .messages-sidebar {
        width: 100%;
        position: absolute;
        inset: 0;
        z-index: 1;
    }

    .messages-main {
        position: absolute;
        inset: 0;
        z-index: 2;
        background: var(--color-gray-50);
    }

    .message-item {
        max-width: 85%;
    }

    .messages-thread {
        padding: var(--space-3);
    }

    .messages-thread-header {
        padding: var(--space-2) var(--space-3);
    }

    .messages-input-container {
        padding: var(--space-2) var(--space-3);
    }

    .conversation-item {
        padding: var(--space-3);
    }
}

@media (min-width: 768px) {
    .messages-page {
        height: calc(100vh - var(--header-height-desktop));
        max-height: calc(100vh - var(--header-height-desktop));
        margin: var(--space-4) auto;
        max-width: 960px;
    }
}

@media (min-width: 1024px) {
    .messages-page {
        max-width: 1100px;
    }

    .messages-sidebar {
        width: 380px;
    }
}