*,
*::before,
*::after {
    box-sizing: border-box;
}

body {
    background: #7b8ba2;
    color: #e0e0e0;
    font-family: monospace;
    font-size: 14px;
    line-height: 1.7;
    margin: 0;
    padding: 0;
    height: 100vh;
    overflow: hidden;
}

/* Window frame - CDE Motif style */
.window {
    margin: 0;
    height: 100vh;
    display: flex;
    flex-direction: column;
    background: #aeb2c3;
    padding: 4px;
    border-top: 3px solid #d4d7e3;
    border-left: 3px solid #d4d7e3;
    border-right: 3px solid #6b6e7a;
    border-bottom: 3px solid #6b6e7a;
    box-shadow: 0 0 0 1px #3a3a4a;
}

/* Title bar - CDE crimson/mauve */
.titlebar {
    background: #b24d7a;
    padding: 4px 5px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    user-select: none;
    border-top: 2px solid #d888a8;
    border-left: 2px solid #d888a8;
    border-right: 2px solid #6e2f4c;
    border-bottom: 2px solid #6e2f4c;
    margin-bottom: 1px;
}

.titlebar-buttons-left,
.titlebar-buttons-right {
    display: flex;
    gap: 0;
}

.titlebar-btn {
    width: 18px;
    height: 18px;
    border-top: 2px solid #d888a8;
    border-left: 2px solid #d888a8;
    border-right: 2px solid #6e2f4c;
    border-bottom: 2px solid #6e2f4c;
    background: #b24d7a;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 10px;
    color: #fff;
    line-height: 1;
    cursor: default;
}

.titlebar-title {
    color: #fff;
    font-size: 14px;
    font-weight: bold;
    letter-spacing: 0.5px;
    text-shadow: 1px 1px 1px rgba(0, 0, 0, 0.5);
    flex: 1;
    text-align: center;
}

/* Main area: sidebar + terminal */
.main-area {
    display: flex;
    flex: 1;
    margin: 1px;
    gap: 0;
    min-height: 0;
}

/* Sidebar - CDE style panel */
.sidebar {
    width: 200px;
    flex-shrink: 0;
    background: #aeb2c3;
    display: flex;
    flex-direction: column;
    gap: 1px;
    padding: 4px;
    border-right: 2px solid #6b6e7a;
    overflow-y: auto;
}

.sidebar-section {
    margin-bottom: 6px;
}

.sidebar-title {
    background: #718ba5;
    color: #fff;
    font-size: 11px;
    font-weight: bold;
    padding: 3px 8px;
    letter-spacing: 0.5px;
    text-shadow: 1px 1px 1px rgba(0, 0, 0, 0.4);
    border-top: 2px solid #9ab0c8;
    border-left: 2px solid #9ab0c8;
    border-right: 2px solid #465568;
    border-bottom: 2px solid #465568;
    margin-bottom: 3px;
}

.sidebar-panel {
    border-top: 2px solid #6b6e7a;
    border-left: 2px solid #6b6e7a;
    border-right: 2px solid #d4d7e3;
    border-bottom: 2px solid #d4d7e3;
    background: #9a9eae;
    padding: 2px;
    display: flex;
    flex-direction: column;
    gap: 1px;
}

.sidebar-link {
    display: block;
    color: #1a1a2e;
    text-decoration: none;
    font-size: 13px;
    padding: 3px 8px;
    background: #aeb2c3;
    border-top: 1px solid #d4d7e3;
    border-left: 1px solid #d4d7e3;
    border-right: 1px solid #6b6e7a;
    border-bottom: 1px solid #6b6e7a;
}

.sidebar-link:hover {
    background: #bfc3d4;
}

.sidebar-link.active {
    background: #b24d7a;
    color: #fff;
    border-top: 1px solid #6e2f4c;
    border-left: 1px solid #6e2f4c;
    border-right: 1px solid #d888a8;
    border-bottom: 1px solid #d888a8;
}

.sidebar-tag {
    display: block;
    color: #1a1a2e;
    text-decoration: none;
    font-size: 13px;
    padding: 3px 8px;
    background: #aeb2c3;
    border-top: 1px solid #d4d7e3;
    border-left: 1px solid #d4d7e3;
    border-right: 1px solid #6b6e7a;
    border-bottom: 1px solid #6b6e7a;
    cursor: pointer;
}

.sidebar-tag:hover {
    background: #bfc3d4;
}

.sidebar-tag.active {
    background: #b24d7a;
    color: #fff;
    border-top: 1px solid #6e2f4c;
    border-left: 1px solid #6e2f4c;
    border-right: 1px solid #d888a8;
    border-bottom: 1px solid #d888a8;
}

/* Inner frame around terminal - CDE sunken panel with orange bevel */
.terminal-frame {
    flex: 1;
    border-top: 4px solid #8a6520;
    border-left: 4px solid #8a6520;
    border-right: 4px solid #e0b050;
    border-bottom: 4px solid #e0b050;
    background: #556573;
    min-height: 0;
    overflow-y: auto;
}

/* Terminal content area */
.terminal {
    padding: 2rem 2.5rem;
    min-height: 60vh;
}

/* Content */
.content {
    color: #e0e0e0;
}

.content h1,
.content h2,
.content h3,
.content h4,
.content h5,
.content h6 {
    color: #ffffff;
    margin-top: 2rem;
    margin-bottom: 0.8rem;
}

.content h1 {
    font-size: 1.5rem;
}
.content h2 {
    font-size: 1.25rem;
}
.content h3 {
    font-size: 1.1rem;
}

.content a {
    color: #8ec8e8;
    text-decoration: none;
    border-bottom: 1px dashed #8ec8e8;
}

.content a:hover {
    color: #ffffff;
}

.content p {
    margin: 1rem 0;
}

.content ul,
.content ol {
    padding-left: 2rem;
}

.content li {
    margin: 0.3rem 0;
}

.content li::marker {
    color: #c0c0c0;
}

/* Tables */
.content table {
    width: 100%;
    border-collapse: collapse;
    margin: 1rem 0;
    background: #3d4a56;
}

.content th,
.content td {
    padding: 8px 12px;
    border: 1px solid #6e7a86;
    text-align: left;
}

.content th {
    background: #4a5868;
    color: #f0d080;
    font-weight: bold;
}

.content td {
    color: #e0e0e0;
}

/* Inline code */
.content code {
    background: #3d4a56;
    color: #f0d080;
    padding: 0.2em 0.5em;
    border-top: 1px solid #2a343e;
    border-left: 1px solid #2a343e;
    border-right: 1px solid #6e7a86;
    border-bottom: 1px solid #6e7a86;
    font-size: 0.95em;
}

/* Code blocks - CDE sunken panel style */
.content pre {
    background: #3d4a56;
    border-top: 3px solid #2a343e;
    border-left: 3px solid #2a343e;
    border-right: 3px solid #6e7a86;
    border-bottom: 3px solid #6e7a86;
    padding: 0;
    overflow: hidden;
    margin: 1.5rem 0;
}

.content pre::before {
    content: "output";
    display: block;
    background: #4a5868;
    color: #c0c0c0;
    font-size: 11px;
    padding: 3px 10px;
    border-bottom: 1px solid #2a343e;
    letter-spacing: 1px;
}

.content pre code {
    display: block;
    background: none;
    border: none;
    padding: 1rem 1.5rem;
    color: #e0e0e0;
    overflow-x: auto;
    font-size: 0.95em;
    line-height: 1.6;
}

.content blockquote {
    border-left: 3px solid #c0a050;
    margin: 1rem 0;
    padding: 0.8rem 1.2rem;
    background: rgba(192, 160, 80, 0.08);
    color: #c8c8c8;
}

.content hr {
    border: none;
    border-top: 1px solid #6e7a86;
    margin: 2rem 0;
}

.content strong {
    color: #ffffff;
}

.content em {
    color: #c8c8c8;
    font-style: italic;
}

/* CDE Motif inner window - reusable in markdown with markdown_unsafe */
.cde-window {
    margin: 1.5rem 0;
    border-top: 3px solid #d4d7e3;
    border-left: 3px solid #d4d7e3;
    border-right: 3px solid #6b6e7a;
    border-bottom: 3px solid #6b6e7a;
    background: #aeb2c3;
}

.cde-window-title {
    background: #c8a060;
    color: #fff;
    font-size: 13px;
    font-weight: bold;
    padding: 4px 5px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    letter-spacing: 0.5px;
    text-shadow: 1px 1px 1px rgba(0, 0, 0, 0.4);
    border-top: 2px solid #e0c880;
    border-left: 2px solid #e0c880;
    border-right: 2px solid #8a6520;
    border-bottom: 2px solid #8a6520;
}

.cde-window-title span {
    flex: 1;
    text-align: center;
}

.cde-window-btns {
    display: flex;
    gap: 0;
}

.cde-window-btn {
    width: 16px;
    height: 16px;
    border-top: 2px solid #e0c880;
    border-left: 2px solid #e0c880;
    border-right: 2px solid #8a6520;
    border-bottom: 2px solid #8a6520;
    background: #c8a060;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 9px;
    color: #fff;
    line-height: 1;
    cursor: default;
}

.cde-window-menubar {
    background: #5f9ea0;
    color: #fff;
    font-size: 12px;
    font-weight: bold;
    padding: 3px 10px;
    letter-spacing: 0.5px;
    border-top: 1px solid #8ac5c7;
    border-bottom: 1px solid #3d6e70;
}

.cde-window-body {
    background: #556573;
    color: #e0e0e0;
    padding: 1rem 1.2rem;
    border-top: 3px solid #3d4a56;
    border-left: 3px solid #3d4a56;
    border-right: 3px solid #6e7a86;
    border-bottom: 3px solid #6e7a86;
    margin: 3px;
    font-size: 13px;
    line-height: 1.6;
}

.cde-window-body h3 {
    color: #f0d080;
    font-size: 13px;
    margin: 1rem 0 0.5rem 0;
}

.cde-window-body strong {
    color: #ffffff;
}

.cde-window-body a {
    color: #8ec8e8;
    text-decoration: none;
    border-bottom: 1px dashed #8ec8e8;
}

.cde-window-body a:hover {
    color: #ffffff;
}

.cde-window-body ul {
    padding-left: 1.5rem;
    margin: 0.5rem 0;
}

.cde-window-body li {
    margin: 0.2rem 0;
}

.cde-window-body li::marker {
    color: #8ec8e8;
}

.cde-window-body p {
    margin: 0.6rem 0;
}

.cde-window-body table {
    width: 100%;
    border-collapse: collapse;
    margin: 0.5rem 0;
}

.cde-window-body td,
.cde-window-body th {
    padding: 3px 8px;
    border: 1px solid #6e7a86;
    text-align: left;
}

/* Hidden tag items */
.content li.hidden-tag {
    display: none;
}

/* Status bar - CDE front panel style */
.statusbar {
    background: #b24d7a;
    border-top: 2px solid #d888a8;
    border-left: 2px solid #d888a8;
    border-right: 2px solid #6e2f4c;
    border-bottom: 2px solid #6e2f4c;
    padding: 3px 8px;
    color: #fff;
    font-size: 12px;
    display: flex;
    justify-content: space-between;
    margin-top: 1px;
}

.statusbar span {
    border-top: 2px solid #6e2f4c;
    border-left: 2px solid #6e2f4c;
    border-right: 2px solid #d888a8;
    border-bottom: 2px solid #d888a8;
    padding: 1px 8px;
    background: #9a3d66;
    color: #f0d0e0;
}

.statusbar-link {
    color: #f0d0e0;
    text-decoration: none;
    border: none;
}

.statusbar-link:hover {
    color: #fff;
    text-shadow: none;
}

/* Resize grip */
.window::after {
    content: "";
    display: block;
    width: 14px;
    height: 14px;
    float: right;
    margin-top: -16px;
    margin-right: 0;
    background: linear-gradient(
        135deg,
        transparent 30%,
        #d4d7e3 30%,
        #d4d7e3 40%,
        #6b6e7a 40%,
        #6b6e7a 50%,
        transparent 50%,
        transparent 60%,
        #d4d7e3 60%,
        #d4d7e3 70%,
        #6b6e7a 70%,
        #6b6e7a 80%,
        transparent 80%
    );
}

/* Responsive */
@media (max-width: 700px) {
    .window {
        border-width: 2px;
    }

    .main-area {
        flex-direction: column;
    }

    .sidebar {
        width: 100%;
        flex-direction: row;
        flex-wrap: wrap;
        gap: 4px;
        border-right: none;
        border-bottom: 2px solid #6b6e7a;
    }

    .sidebar-section {
        flex: 1;
        min-width: 150px;
        margin-bottom: 0;
    }

    .terminal {
        padding: 1.2rem 1rem;
    }

    .content h1 {
        font-size: 1.3rem;
    }
    .content h2 {
        font-size: 1.15rem;
    }
}