/**
 * 右侧查看面板标签
 * -----------------------------------------
 * 小尺寸的纵向标签，悬停即触发展示对应的查看面板
 */
:root {
    --view-panel-tab-thickness: 22px;
    --view-panel-tab-length: 112px;
    --view-panel-tab-gap: 6px;
    --view-panel-tab-gutter: calc(var(--view-panel-tab-thickness) + 8px);
    --view-panel-height: min(72vh, calc(100vh - 120px));
    --view-panel-bg: #33373d;
    --view-panel-header-bg: var(--view-panel-bg);
    --view-panel-header-border: var(--color-border-light, #333);
    --view-panel-header-pad: 10px 16px;
    --view-panel-header-height: 48px;
}

[data-theme="light"] {
    --view-panel-bg: #ffffff;
    --view-panel-header-bg: #ffffff;
    --view-panel-header-border: rgba(15, 23, 42, 0.12);
}

#view-panel-tab-strip {
    position: fixed;
    top: 108px;
    right: 0;
    display: flex;
    flex-direction: column;
    gap: var(--view-panel-tab-gap);
    z-index: 13100;
    padding-right: 2px;
    pointer-events: none;
}

#view-panel-tab-strip.is-hidden {
    display: none;
}

.view-panel-tab {
    pointer-events: auto;
    box-sizing: border-box;
    width: var(--view-panel-tab-thickness);
    height: var(--view-panel-tab-length);
    padding: 12px 4px;
    writing-mode: vertical-rl;
    text-orientation: upright;
    background: var(--tab-base, var(--color-bg-tertiary, #2a2a2a));
    color: var(--tab-text, var(--color-text-secondary, #999));
    font-weight: 700;
    border: none;
    border-radius: 12px 0 0 12px;
    box-shadow: -2px 2px 8px rgba(0, 0, 0, 0.2);
    font-size: 12px;
    letter-spacing: 1px;
    cursor: pointer;
    transition: background 0.2s ease, color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.view-panel-tab:hover,
.view-panel-tab:focus-visible {
    background: var(--tab-hover, var(--color-bg-primary, #262728));
    color: var(--tab-text-hover, var(--color-text-primary, #f5f5f5));
    border-color: var(--tab-border-hover, var(--tab-border, var(--color-border-light, #333)));
    transform: translateX(-2px);
    box-shadow: -4px 4px 12px rgba(0, 0, 0, 0.28);
    outline: none;
}

.view-panel-tab.active {
    background: var(--tab-active, var(--tab-hover, var(--tab-base, #2a2a2a))));
    color: var(--tab-text-active, #0b1e0f);
    border-color: var(--tab-border-active, var(--tab-border, var(--color-secondary, #00ff41)));
    box-shadow: -4px 4px 14px rgba(0, 0, 0, 0.32);
    transform: translateX(-3px);
}

[data-theme="light"] .view-panel-tab {
    background: var(--tab-base, #f1f5f9);
    color: var(--tab-text, #0f172a);
    border-color: var(--tab-border, #e2e8f0);
    box-shadow: -2px 2px 6px rgba(0, 0, 0, 0.12);
}

[data-theme="light"] .view-panel-tab:hover,
[data-theme="light"] .view-panel-tab:focus-visible {
    background: var(--tab-hover, #e2e8f0);
    color: var(--tab-text-hover, #1e293b);
}

[data-theme="light"] .view-panel-tab.active {
    color: var(--tab-text-active, #0f172a);
    box-shadow: -4px 4px 12px rgba(0, 0, 0, 0.2);
}

/* 单独配色（纯色，不渐变） */
.view-panel-tab.tab-blackboard {
    --tab-base: #1b3c59;
    --tab-hover: #254f72;
    --tab-active: #3a6c91;
    --tab-text: #dbeafe;
    --tab-text-hover: #e0ecff;
    --tab-text-active: #e0ecff;
    --tab-border: #1f2937;
}

.view-panel-tab.tab-message {
    --tab-base: #12332b;
    --tab-hover: #1a443c;
    --tab-active: #2a5f59;
    --tab-text: #d1fae5;
    --tab-text-hover: #e2fff2;
    --tab-text-active: #e2fff2;
    --tab-border: #134e4a;
}

.view-panel-tab.tab-console {
    --tab-base: #2a1b1b;
    --tab-hover: #372525;
    --tab-active: #8a2a2a;
    --tab-text: #ffe4e6;
    --tab-text-hover: #fff1f2;
    --tab-text-active: #fff1f2;
    --tab-border: #4c1d1d;
}

.view-panel-tab.tab-properties {
    --tab-base: #27224a;
    --tab-hover: #332d5f;
    --tab-active: #6843b2;
    --tab-text: #ede9fe;
    --tab-text-hover: #f5f3ff;
    --tab-text-active: #f5f3ff;
    --tab-border: #43326b;
}

/* 亮色主题适配（纯色，不渐变） */
[data-theme="light"] .view-panel-tab.tab-blackboard {
    --tab-base: #e4edf8;
    --tab-hover: #d6e2f2;
    --tab-active: #3a6c91;
    --tab-text: #0b1224;
    --tab-text-hover: #0b1224;
    --tab-text-active: #0b1224;
    --tab-border: #b6c5d7;
}

[data-theme="light"] .view-panel-tab.tab-message {
    --tab-base: #e2f6f1;
    --tab-hover: #d4eee8;
    --tab-active: #2a5f59;
    --tab-text: #0b2e22;
    --tab-text-hover: #0b2e22;
    --tab-text-active: #0d4133;
    --tab-border: #9edfc9;
}

[data-theme="light"] .view-panel-tab.tab-console {
    --tab-base: #f9e3e4;
    --tab-hover: #f0d6d8;
    --tab-active: #a33a3a;
    --tab-text: #571010;
    --tab-text-hover: #571010;
    --tab-text-active: #6d1212;
    --tab-border: #e8a7ae;
}

[data-theme="light"] .view-panel-tab.tab-properties {
    --tab-base: #e9e2f7;
    --tab-hover: #ddd4f1;
    --tab-active: #6a41b0;
    --tab-text: #2b184f;
    --tab-text-hover: #2b184f;
    --tab-text-active: #321c5b;
    --tab-border: #c4b5f6;
}

@media (max-width: 1100px) {
    #view-panel-tab-strip {
        top: 96px;
    }
}

@media (max-width: 768px) and (pointer: coarse) {
    #view-panel-tab-strip {
        display: none !important;
    }
}