/*
 * Chat layout — full-height workspace with docked composer (DeepSeek-style structure).
 */

.chat-app {
    --sidebar-width: 260px;
    --chat-thread-width: 768px;
    display: flex;
    flex: 1 1 auto;
    min-height: calc(100dvh - var(--nav-height));
    background: var(--chat-bg);
    color: var(--chat-text);
}

.route-user-chat main {
    display: flex;
    flex-direction: column;
    flex: 1 1 auto;
    min-height: calc(100dvh - var(--nav-height));
}

.route-user-chat .site-footer {
    display: none;
}

.chat-main {
    display: flex;
    flex-direction: column;
    flex: 1 1 auto;
    min-width: 0;
    min-height: 0;
    position: relative;
}

.chat-workspace {
    display: flex;
    flex-direction: column;
    flex: 1 1 auto;
    min-height: 0;
}

.chat-messages {
    flex: 1 1 auto;
    min-height: 0;
    overflow-y: auto;
    scroll-behavior: smooth;
    display: flex;
    flex-direction: column;
    padding: var(--space-5) var(--space-4) var(--space-3);
}

.chat-messages:has(.empty-state:not([hidden])) {
    justify-content: center;
}

.chat-thread {
    width: 100%;
    max-width: var(--chat-thread-width);
    margin: 0 auto;
    flex: 0 1 auto;
}

.chat-composer-dock {
    flex-shrink: 0;
    padding: var(--space-3) var(--space-4) var(--space-5);
    background: var(--chat-bg);
}

.chat-composer {
    width: 100%;
    max-width: var(--chat-thread-width);
    margin: 0 auto;
}

.recipe-panel {
    position: fixed;
    top: var(--nav-height);
    right: 0;
    height: calc(100dvh - var(--nav-height));
    width: min(420px, 100vw);
    background: var(--chat-bg);
    border-left: 1px solid var(--chat-border);
    transform: translateX(100%);
    transition: transform var(--chat-transition);
    z-index: 20;
    display: flex;
    flex-direction: column;
    visibility: hidden;
    pointer-events: none;
}

.recipe-panel.is-open {
    visibility: visible;
    pointer-events: auto;
    transform: translateX(0);
}

.recipe-panel-header {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-4);
    border-bottom: 1px solid var(--chat-border);
}

.recipe-panel-back,
.recipe-panel-save {
    flex-shrink: 0;
    border: 1px solid var(--chat-border);
    border-radius: var(--radius-md);
    background: transparent;
    color: var(--chat-text-secondary);
    font: inherit;
    font-size: var(--font-size-sm);
    cursor: pointer;
    padding: var(--space-2) var(--space-3);
    line-height: 1;
}

.recipe-panel-back {
    width: 36px;
    padding: var(--space-2);
}

.recipe-panel-back:hover,
.recipe-panel-save:hover {
    border-color: var(--chat-accent);
    color: var(--chat-accent);
}

.recipe-panel-title {
    flex: 1 1 auto;
    margin: 0;
    font-size: var(--font-size-base);
    font-weight: 600;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.recipe-panel-content {
    flex: 1 1 auto;
    overflow-y: auto;
    padding: var(--space-4);
}

@media (min-width: 768px) {
    .chat-messages {
        padding: var(--space-6) var(--space-6) var(--space-4);
    }

    .chat-composer-dock {
        padding: var(--space-4) var(--space-6) var(--space-6);
    }
}

@media (max-width: 640px) {
    .chat-messages {
        padding: var(--space-4) var(--space-3) var(--space-2);
    }

    .chat-composer-dock {
        padding: var(--space-2) var(--space-3) var(--space-4);
    }
}

/*
 * Guest banner — subtle notice that guest chats are not persisted.
 */

.guest-banner {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-3);
    padding: var(--space-2) var(--space-4);
    border-bottom: 1px solid var(--chat-border);
    background: var(--chat-surface);
    color: var(--chat-text-secondary);
    font-size: var(--font-size-xs);
}

.guest-banner[hidden] {
    display: none;
}

.guest-banner-text {
    margin: 0;
}

.guest-banner-text a {
    color: var(--chat-accent);
    text-decoration: none;
    font-weight: 500;
}

.guest-banner-text a:hover {
    text-decoration: underline;
}

.guest-banner-dismiss {
    display: flex;
    align-items: center;
    justify-content: center;
    border: none;
    background: transparent;
    color: var(--chat-text-muted);
    font-size: 1rem;
    line-height: 1;
    cursor: pointer;
    padding: var(--space-1);
}

.guest-banner-dismiss:hover {
    color: var(--chat-text);
}