/* =============================================================
   v9.2 三栏布局（profile 左 / chat 中 / cmd 右）
   ============================================================= */

/* ---- 默认：3 栏 ---- */
.chat-layout {
    display: grid;
    grid-template-columns:
        minmax(0, var(--pp-width, 380px))   /* 左：profile */
        minmax(0, 1fr)                      /* 中：chat */
        minmax(0, 360px);                   /* 右：cmd */
    grid-template-rows: minmax(0, 1fr);
    grid-template-areas: "profile chat cmd";   /* ★ 显式列位,避免折叠时错位 */
    gap: 12px;
    padding: 12px 12px 12px 12px;
    transition: grid-template-columns 0.28s ease;
    align-items: stretch;
    min-height: 0;
    height: 100%;
}

/* ---- 隐藏角色面板：左列 0，用 . 占位让 chat 留在第 2 列 ---- */
.chat-layout.left-collapsed {
    grid-template-columns:
        0
        minmax(0, 1fr)
        minmax(0, 360px);
    grid-template-areas: ". chat cmd";
}

/* ---- 隐藏指令面板：右列 0 ---- */
.chat-layout.right-collapsed {
    grid-template-columns:
        minmax(0, var(--pp-width, 380px))
        minmax(0, 1fr)
        0;
    grid-template-areas: "profile chat .";
}

/* ---- 全屏：两边都关，中栏占满 ---- */
.chat-layout.fullscreen {
    grid-template-columns: 0 minmax(0, 1fr) 0;
    grid-template-areas: ". chat .";
}

/* =============================================================
   ★关键 fix 1：被隐藏那一栏的子元素必须归零
   否则 .profile-panel 的 min-width:300px 会把 grid 列 0 撑成 300px
   ============================================================= */
.chat-layout.left-collapsed > .profile-panel,
.chat-layout.fullscreen > .profile-panel {
    width: 0 !important;
    min-width: 0 !important;
    max-width: 0 !important;
    flex: 0 0 0 !important;
    height: 0 !important;
    margin: 0 !important;
    padding: 0 !important;
    border: none !important;
    overflow: hidden !important;
    opacity: 0;
    pointer-events: none;
}

.chat-layout.right-collapsed > .cmd-panel,
.chat-layout.fullscreen > .cmd-panel {
    width: 0 !important;
    min-width: 0 !important;
    max-width: 0 !important;
    flex: 0 0 0 !important;
    height: 0 !important;
    margin: 0 !important;
    padding: 0 !important;
    border: none !important;
    overflow: hidden !important;
    opacity: 0;
    pointer-events: none;
}

/* =============================================================
   chat-body 始终在 grid 中是中间列；高/宽都由 grid 撑满
   ============================================================= */
.chat-layout > .chat-body {
    /* 覆盖 chat.css 中 flex 流下的高度 */
    flex: none !important;
    width: auto;
    height: 100%;
    min-width: 0;
    min-height: 0;
    max-width: none;
    max-height: none;
    border-radius: var(--radius-lg);
    overflow: hidden;
    background: var(--bg-surface);
    box-shadow: var(--shadow-sm);
    display: flex;
    flex-direction: column;
}

/* chat-body 内部：消息列表占满除 input-bar 之外的高度 */
.chat-layout > .chat-body > .message-panel {
    flex: 1 1 0;
    min-height: 0;
}

/* input-bar 跟随中栏,不再贯穿全屏 */
.chat-layout > .chat-body > .input-bar {
    flex-shrink: 0;
    border-top: 1px solid var(--border-soft);
    border-radius: 0 0 var(--radius-lg) var(--radius-lg);
}

/* =============================================================
   ★ v9.2 fix：grid-area 显式绑定到模板区域
   折叠时 ProfilePanel / cmd-panel 被 Razor 移除,
   但 chat-body 必须永远落在 "chat" 这一列,不会因为子元素减少而错位
   ============================================================= */
.chat-layout > .profile-panel { grid-area: profile; }
.chat-layout > .chat-body     { grid-area: chat; }
.chat-layout > .cmd-panel     { grid-area: cmd; }

/* profile-panel 在 grid 内的微调 */
.chat-layout > .profile-panel {
    flex: 0 0 auto !important;
    width: auto;
    height: 100%;
    min-width: 0;
    max-width: none;
    min-height: 0;
    border-right: none;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
}

/* cmd-panel 在 grid 内（替代原本的 absolute 底部条） */
.chat-layout > .cmd-panel {
    position: relative;
    flex: 0 0 auto;
    width: auto;
    height: 100%;
    min-width: 0;
    border-top: none;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
}

.chat-layout > .cmd-panel .cmd-panel-body {
    overflow: hidden;
}

/* ---- 窄屏：竖排堆叠为单列 ---- */
@media (max-width: 980px) {
    .chat-layout,
    .chat-layout.left-collapsed,
    .chat-layout.right-collapsed,
    .chat-layout.fullscreen {
        grid-template-columns: minmax(0, 1fr);
        grid-auto-rows: auto;
        gap: 10px;
        padding: 10px;
    }

    /* 窄屏下 profile-panel / cmd-panel 改回可滚动堆叠 */
    .chat-layout > .profile-panel,
    .chat-layout > .cmd-panel {
        height: auto;
        max-height: 60vh;
    }

    .chat-layout.left-collapsed > .profile-panel,
    .chat-layout.right-collapsed > .cmd-panel,
    .chat-layout.fullscreen > .profile-panel,
    .chat-layout.fullscreen > .cmd-panel {
        /* 窄屏上隐藏的彻底不占空间 */
        display: none !important;
    }
}

/* =============================================================
   v9.3 指令面板头部图标 (SVG 版)
   ============================================================= */
.cmd-panel-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 22px;
    height: 22px;
    color: var(--accent);
    flex-shrink: 0;
}

.cmd-search-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 14px;
    height: 14px;
    color: var(--text-muted);
    flex-shrink: 0;
    margin-left: 10px;
}

.cmd-search-clear {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 18px;
    height: 18px;
    padding: 0;
    background: transparent;
    border: none;
    border-radius: 50%;
    color: var(--text-muted);
    cursor: pointer;
    flex-shrink: 0;
    transition: background 0.15s, color 0.15s;
}

.cmd-search-clear:hover {
    background: var(--accent-soft);
    color: var(--accent);
}

.cmd-panel-close {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    padding: 0;
    background: transparent;
    border: 1px solid transparent;
    border-radius: 8px;
    color: var(--text-secondary);
    cursor: pointer;
    flex-shrink: 0;
    transition: background 0.15s, color 0.15s, border-color 0.15s;
}

.cmd-panel-close:hover {
    background: var(--danger-soft);
    color: var(--danger);
    border-color: var(--danger);
}

/* =============================================================
   v9.3 顶栏三栏布局开关 —— 高级玻璃质感 + SVG 图标
   ============================================================= */
.layout-toggles {
    display: inline-flex;
    align-items: center;
    gap: 1px;
    padding: 4px 5px;
    background: var(--bg-surface);
    border: 1px solid var(--border-soft);
    border-radius: 12px;
    margin: 0 6px;
    backdrop-filter: blur(12px) saturate(180%);
    -webkit-backdrop-filter: blur(12px) saturate(180%);
    box-shadow: var(--shadow-sm);
}

.layout-btn {
    --btn-h: 30px;
    --btn-w: 78px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    height: var(--btn-h);
    min-width: var(--btn-w);
    padding: 0 11px;
    background: transparent;
    border: 1px solid transparent;
    border-radius: 9px;
    color: var(--text-secondary);
    font-size: 0.78rem;
    font-weight: 600;
    letter-spacing: 0.01em;
    cursor: pointer;
    transition:
        background 0.18s cubic-bezier(.4,0,.2,1),
        color 0.18s ease,
        border-color 0.18s ease,
        box-shadow 0.22s ease,
        transform 0.12s ease;
    white-space: nowrap;
    line-height: 1;
    position: relative;
    user-select: none;
}

.layout-btn:hover {
    background: var(--accent-soft);
    color: var(--accent);
}

.layout-btn:active {
    transform: scale(0.96);
}

/* SVG 图标统一 16x16,跟随按钮文字颜色 */
.layout-btn-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 16px;
    height: 16px;
    flex-shrink: 0;
    transition: transform 0.25s cubic-bezier(.4,0,.2,1);
}

.layout-btn:hover .layout-btn-icon {
    transform: scale(1.08);
}

/* 折叠态：低调虚化,加"已关"语义 */
.layout-btn.is-off {
    color: var(--text-faint);
    background: transparent;
    opacity: 0.6;
}

.layout-btn.is-off:hover {
    color: var(--accent);
    background: var(--accent-soft);
    opacity: 1;
}

.layout-btn.is-off .layout-btn-icon {
    /* 折叠态的图标稍暗 */
    filter: saturate(0.4) brightness(0.92);
}

.layout-btn.is-off:hover .layout-btn-icon {
    filter: none;
}

/* 全屏激活态：渐变 + 内阴影 + 顶部高光 */
.layout-btn.is-active {
    background: var(--btn-grad);
    color: var(--text-on-accent);
    border-color: transparent;
    box-shadow:
        var(--btn-glow),
        inset 0 1px 0 rgba(255, 255, 255, 0.18),
        inset 0 -1px 0 rgba(0, 0, 0, 0.12);
}

.layout-btn.is-active::before {
    content: "";
    position: absolute;
    inset: 0;
    border-radius: inherit;
    pointer-events: none;
    background: linear-gradient(180deg, rgba(255,255,255,0.10), transparent 50%);
}

.layout-btn.is-active:hover {
    color: var(--text-on-accent);
    filter: brightness(1.06) saturate(1.05);
}

.layout-btn.is-active:active {
    transform: scale(0.96);
}

/* 全屏按钮：与其它按钮等宽,共享 --btn-w */
.layout-btn-fullscreen {
    /* 不再单独 width,由父 .layout-btn 的 min-width: var(--btn-w) 控制 */
}

/* ★ v10.6 移动端兜底：JS 在 body 加 .is-mobile,这里用 class 强制覆盖,
   这样不受 media query 误判 / 浏览器缓存 / 用户缩放 影响 */
body.is-mobile .layout-btn-text { display: none !important; }
body.is-mobile .layout-btn-fullscreen { min-width: var(--btn-h) !important; width: var(--btn-h) !important; }
body.is-mobile .layout-btn { --btn-w: var(--btn-h) !important; padding: 0 6px !important; }
body.is-mobile .layout-btn-sep { display: none !important; }
body.is-mobile .layout-toggles { margin: 0 2px !important; padding: 3px 4px !important; gap: 0 !important; }
body.is-mobile .icon-btn { width: 32px !important; height: 32px !important; }

@media (max-width: 768px) {
    /* ★ 移动端把文字标签隐藏, 按钮变成纯图标方块, 顶栏不再被挤压 */
    .layout-btn-text { display: none; }
    .layout-btn-fullscreen { min-width: var(--btn-h); width: var(--btn-h); }
    .layout-btn { --btn-w: var(--btn-h); padding: 0 6px; }
    .layout-btn-sep { display: none; }
    .layout-toggles { margin: 0 2px; padding: 3px 4px; gap: 0; }
}

@media (max-width: 480px) {
    /* ★ 更小屏: 进一步压缩 --btn-h, 让 3 个按钮 + 主题/退出 一起塞得下顶栏 */
    .layout-btn { --btn-h: 28px; }
    .icon-btn { width: 32px; height: 32px; }
}

.layout-btn-text {
    font-size: 0.78rem;
    font-feature-settings: "tnum" 1;
}

/* 分隔符：更精致的渐变细线 */
.layout-btn-sep {
    display: inline-block;
    width: 1px;
    height: 18px;
    background: linear-gradient(180deg,
        transparent 0%,
        var(--border-soft) 30%,
        var(--border-soft) 70%,
        transparent 100%);
    margin: 0 2px;
    flex-shrink: 0;
}

/* =============================================================
   v9.2 主题下拉选择器
   ============================================================= */
.theme-switcher {
    position: relative;
}

.theme-menu {
    position: absolute;
    top: calc(100% + 0.5rem);
    right: 0;
    min-width: 220px;
    background: var(--bg-surface);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border: 1px solid var(--border-mid);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    padding: 0.4rem;
    z-index: 30;
    animation: menu-down 0.18s ease;
}

.theme-menu-title {
    font-size: 0.72rem;
    color: var(--text-muted);
    padding: 0.4rem 0.75rem 0.5rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.theme-menu-item {
    display: flex;
    align-items: center;
    gap: 0.65rem;
    padding: 0.55rem 0.75rem;
    background: transparent;
    border: none;
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: 0.85rem;
    cursor: pointer;
    width: 100%;
    text-align: left;
    transition: background 0.12s;
}

.theme-menu-item:hover {
    background: var(--bg-surface-2);
}

.theme-menu-item.is-current {
    background: var(--accent-soft);
    color: var(--accent);
}

.theme-menu-icon {
    width: 30px;
    height: 30px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-surface-2);
    border-radius: 8px;
    font-size: 1rem;
    flex-shrink: 0;
}

.theme-menu-item.is-current .theme-menu-icon {
    background: var(--btn-grad);
    color: var(--text-on-accent);
}

.theme-menu-info { flex: 1; min-width: 0; }
.theme-menu-name { font-weight: 500; }
.theme-menu-desc { font-size: 0.7rem; color: var(--text-muted); margin-top: 1px; }

.theme-menu-check {
    color: var(--accent);
    font-weight: 700;
}

@keyframes menu-down {
    from { opacity: 0; transform: translateY(-6px); }
    to   { opacity: 1; transform: translateY(0); }
}

/* =============================================================
   星露谷皮肤：顶栏三按钮 + 主题下拉适配
   ============================================================= */
[data-theme="stardew"] .layout-btn.is-active,
[data-skin="stardew"] .layout-btn.is-active {
    background: linear-gradient(180deg, #ffd773 0%, #f5b324 100%);
    color: var(--sd-wood-dk);
    border-color: var(--sd-wood-dk);
    box-shadow: inset 0 1px 0 #fff7c0, 0 2px 0 var(--sd-wood-dk);
}

[data-theme="stardew"] .layout-btn.is-off,
[data-skin="stardew"] .layout-btn.is-off {
    color: var(--sd-wood-dk);
    opacity: 0.55;
    background: rgba(123, 58, 24, 0.10);
}

[data-theme="stardew"] .theme-menu,
[data-skin="stardew"] .theme-menu {
    background: #fff7e3;
    border: 2px solid var(--sd-wood);
    box-shadow: 0 4px 0 var(--sd-wood-dk);
}

[data-theme="stardew"] .theme-menu-item,
[data-skin="stardew"] .theme-menu-item {
    color: var(--sd-wood-dk);
}

[data-theme="stardew"] .theme-menu-item:hover,
[data-skin="stardew"] .theme-menu-item:hover {
    background: rgba(245, 179, 36, 0.18);
}

[data-theme="stardew"] .theme-menu-item.is-current,
[data-skin="stardew"] .theme-menu-item.is-current {
    background: linear-gradient(180deg, #ffd773 0%, var(--sd-gold) 100%);
    color: #2c1408;
    font-weight: 700;
    border: 1.5px solid var(--sd-wood-dk);
    box-shadow: inset 0 1px 0 #fff7c0, 0 1px 0 var(--sd-wood-dk);
}

[data-theme="stardew"] .theme-menu-item.is-current .theme-menu-icon,
[data-skin="stardew"] .theme-menu-item.is-current .theme-menu-icon {
    background: var(--sd-wood);
    color: var(--sd-gold-lt);
    border-color: var(--sd-wood-dk);
}

[data-theme="stardew"] .theme-menu-item.is-current .theme-menu-check,
[data-skin="stardew"] .theme-menu-item.is-current .theme-menu-check {
    color: var(--sd-wood-dk);
    font-weight: 800;
}

/* room-menu-item.active 默认样式保留 chat.css 中的版本
   (background: var(--accent-soft); color: var(--accent);)
   在星露谷主题下覆写为更明显的高亮 */
[data-theme="stardew"] .room-menu-item.active,
[data-skin="stardew"] .room-menu-item.active {
    background: linear-gradient(180deg, #ffd773 0%, var(--sd-gold) 100%);
    color: #2c1408;
    font-weight: 700;
    border: 1.5px solid var(--sd-wood-dk);
    box-shadow: inset 0 1px 0 #fff7c0, 0 1px 0 var(--sd-wood-dk);
}

[data-theme="stardew"] .room-menu-item.active .room-menu-icon,
[data-skin="stardew"] .room-menu-item.active .room-menu-icon {
    background: var(--sd-wood);
    color: var(--sd-gold-lt);
    border-color: var(--sd-wood-dk);
}

[data-theme="stardew"] .room-menu-item.active .room-menu-check,
[data-skin="stardew"] .room-menu-item.active .room-menu-check {
    color: var(--sd-wood-dk);
}

/* 星露谷皮肤下：layout-btn SVG 描边色自适应 */
[data-theme="stardew"] .layout-btn .layout-btn-icon,
[data-skin="stardew"] .layout-btn .layout-btn-icon {
    /* 描边色由 currentColor 决定,通过 button 的 color 控制 */
}

[data-theme="stardew"] .layout-btn.is-active,
[data-skin="stardew"] .layout-btn.is-active {
    background: linear-gradient(180deg, #ffd773 0%, #f5b324 100%);
    color: var(--sd-wood-dk);
    border-color: var(--sd-wood-dk);
    box-shadow:
        inset 0 1px 0 #fff7c0,
        0 2px 0 var(--sd-wood-dk),
        0 0 0 1px rgba(255, 247, 195, 0.30);
}