:root {
    --bg-body: #0f172a;
    --bg-surface: #1e293b;
    --border-color: #334155;
    --text-primary: #e2e8f0;
    --text-secondary: #94a3b8;
    --accent-emerald: #10b981;
    --hover-bg: #334155;
    --code-bg: #090d16;
    --lh-green: #0cce6b;
    --lh-orange: #ffa400;
    --lh-red: #ff4e42;
    --diff-add: rgba(16, 185, 129, 0.15);
    --diff-del: rgba(239, 68, 68, 0.15);
}

/* Application-wide theme tokens: page-specific styles must not change the shell palette. */
:root {
    --bg-body: #0f172a !important;
    --bg-surface: #1e293b !important;
    --border-color: #334155 !important;
    --text-primary: #e2e8f0 !important;
    --text-secondary: #94a3b8 !important;
    --accent-emerald: #10b981 !important;
    --hover-bg: #334155 !important;
    --code-bg: #090d16 !important;
}

body {
    background-color: var(--bg-body);
    color: var(--text-primary);
    font-family: 'Segoe UI', Roboto, -apple-system, sans-serif;
}

.fixed-header-wrapper {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1030;
}

.skippy {
    background-color: #047857;
    color: #ffffff;
    font-size: 0.85rem;
    font-weight: 600;
}

.bd-navbar {
    background-color: var(--bg-surface) !important;
    border-bottom: 1px solid var(--border-color);
    padding: 0.5rem 1rem;
}

.navbar-brand {
    color: var(--accent-emerald) !important;
    font-weight: 700;
    font-size: 1.3rem;
}

.bd-subnavbar {
    background-color: #111827;
    border-bottom: 1px solid var(--border-color);
    /* padding: 0.4rem 1rem; */
}

.top-topics-scroll {
    overflow-x: auto;
    white-space: nowrap;
    scrollbar-width: none;
}

.top-topics-scroll::-webkit-scrollbar {
    display: none;
}

.top-topics .nav-link {
    color: var(--text-secondary);
    font-size: 0.92rem;
    font-weight: 500;
    padding: 0.35rem 0.75rem;
    border-radius: 6px;
}

.top-topics .nav-link:hover,
.top-topics .nav-link.active {
    color: var(--text-primary);
    background-color: var(--hover-bg);
}

/* .top-topics .nav-link.active {
            color: var(--accent-emerald);
            
        } */
.nav-link:hover,
.nav-link.active {
    font-weight: 600;
    color: var(--accent-emerald) !important;
}

.scroll-btn {
    background-color: var(--bg-surface);
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
    /* border-radius: 50%; */
    width: 43px;
    height: 41px;
    min-width: 28px;
    display: none;
    align-items: center;
    justify-content: center;
    cursor: pointer;
}

.main-wrapper {
    margin-top: 81px;
    padding: 2rem 1rem;
}

.content-card {
    background-color: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1.75rem;
    margin-bottom: 1.75rem;
}

.custom-dropdown {
    background-color: var(--bg-surface);
    border: 1px solid var(--border-color);
}

.code-textarea,
.form-control,
.form-select {
    background-color: var(--code-bg);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    font-family: 'Fira Code', Monaco, Consolas, monospace;
    font-size: 0.9rem;
}

.code-textarea:focus,
.form-control:focus,
.form-select:focus {
    background-color: var(--code-bg);
    border-color: var(--accent-emerald);
    color: var(--text-primary);
    box-shadow: none;
}

.stats-badge {
    background-color: var(--code-bg);
    border: 1px solid var(--border-color);
    padding: 0.35rem 0.75rem;
    border-radius: 6px;
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.output-code-block {
    background-color: var(--code-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 1rem;
    color: #e2e8f0;
    font-family: 'Fira Code', Monaco, Consolas, monospace;
    font-size: 0.88rem;
    white-space: pre-wrap;
    word-break: break-all;
    margin-bottom: 0;
    max-height: 350px;
    overflow-y: auto;
}

.output-box {
    background-color: var(--code-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 1rem;
    font-family: 'Fira Code', Monaco, Consolas, monospace;
    font-size: 0.85rem;
    min-height: 220px;
    max-height: 400px;
    overflow-y: auto;
    white-space: pre-wrap;
}

.table-custom {
    color: var(--text-primary);
    background-color: var(--code-bg);
}

.table-custom th,
.table-custom td {
    border-color: var(--border-color);
    vertical-align: middle;
}

.bd-subnavbar .container-xxl {
    padding-left: 0px;
    padding-right: 0px;
}

.result-box {
    background-color: var(--code-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 1.25rem;
    font-family: 'Fira Code', Monaco, Consolas, monospace;
    font-size: 0.88rem;
    min-height: 280px;
    max-height: 400px;
    overflow-y: auto;
    color: var(--accent-emerald);
    white-space: pre-wrap;
}

.accordion-item {
    background-color: var(--bg-surface);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
}

.accordion-button {
    background-color: var(--bg-surface);
    color: var(--text-primary);
}

.accordion-button:not(.collapsed) {
    background-color: var(--hover-bg);
    color: var(--accent-emerald);
}

.message-card {
    background-color: rgba(9, 13, 22, 0.6);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 0.85rem;
}

.preview-pane {
    background-color: var(--code-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 1.25rem;
    font-size: 0.92rem;
    min-height: 220px;
    max-height: 450px;
    overflow-y: auto;
    color: var(--text-primary);
}

.json-display {
    background-color: var(--code-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 1rem;
    font-family: 'Fira Code', Monaco, Consolas, monospace;
    font-size: 0.88rem;
    min-height: 180px;
    max-height: 380px;
    overflow-y: auto;
    white-space: pre-wrap;
    word-break: break-word;
    color: var(--accent-emerald);
}

.diff-box {
    background-color: var(--code-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 1.25rem;
    font-family: 'Fira Code', Monaco, Consolas, monospace;
    font-size: 0.88rem;
    min-height: 220px;
    max-height: 320px;
    overflow-y: auto;
    color: var(--text-primary);
    white-space: pre-wrap;
}

.diff-added {
    background-color: rgba(16, 185, 129, 0.15);
    color: #34d399;
    display: inline-block;
    width: 100%;
}

.diff-removed {
    background-color: rgba(239, 68, 68, 0.15);
    color: #f87171;
    display: inline-block;
    width: 100%;
}

.section-builder-card {
    background-color: rgba(9, 13, 22, 0.5);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 1rem;
}

.stat-box {
    background-color: var(--code-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 1.25rem;
    text-align: center;
}

.stat-value {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--accent-emerald);
    font-family: 'Fira Code', Monaco, Consolas, monospace;
}

.stat-label {
    font-size: 0.85rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-top: 0.25rem;
}

.csharp-display {
    background-color: var(--code-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 1.25rem;
    font-family: 'Fira Code', Monaco, Consolas, monospace;
    font-size: 0.88rem;
    min-height: 240px;
    max-height: 400px;
    overflow-y: auto;
    white-space: pre;
    word-break: normal;
    color: var(--accent-emerald);
}

.nav-tabs .nav-link {
    color: var(--text-secondary);
    border-color: transparent;
}

.nav-tabs .nav-link.active {
    color: var(--accent-emerald);
    background-color: var(--bg-surface);
    border-color: var(--border-color) var(--border-color) var(--bg-surface);
    font-weight: 600;
}

.nav-tabs {
    border-bottom: 1px solid var(--border-color);
}

.tab-content {
    padding-top: 1.5rem;
}

.preview-box {
    background-color: var(--code-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 1.25rem;
    min-height: 200px;
    max-height: 350px;
    overflow-y: auto;
    color: var(--text-primary);
}

/* Highlight style injected dynamically for matched elements */
.matched-highlight {
    outline: 2px solid var(--accent-emerald) !important;
    background-color: rgba(16, 185, 129, 0.15) !important;
    transition: all 0.2s ease;
}

.code-pill {
    background-color: var(--code-bg);
    border: 1px solid var(--border-color);
    color: var(--accent-emerald);
    padding: 0.35rem 0.75rem;
    border-radius: 6px;
    cursor: pointer;
    font-family: monospace;
    font-weight: 600;
    transition: all 0.2s ease;
}

.code-pill:hover {
    border-color: var(--accent-emerald);
    background-color: var(--hover-bg);
}

.error-code-input {
    background-color: var(--code-bg);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-family: 'Fira Code', Monaco, Consolas, monospace;
    font-size: 1.5rem;
    letter-spacing: 1px;
    padding: 0.75rem 1rem;
    text-align: center;
}

.error-code-input:focus,
.semver-input:focus {
    background-color: var(--code-bg);
    color: var(--text-primary);
    border-color: var(--accent-emerald);
    box-shadow: 0 0 0 0.25rem rgba(16, 185, 129, 0.25);
}

.explanation-box {
    background-color: var(--code-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 1.5rem;
    min-height: 220px;
}

.color-preview-box {
    width: 100%;
    height: 120px;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    background-color: #10b981;
    transition: background-color 0.2s ease;
}

.ini-display,
.props-display,
.toml-display,
.htaccess-display,
.compose-display,
.dockerfile-display,
.gitignore-display,
.k8s-display,
.nginx-display {
            background-color: var(--code-bg);
            border: 1px solid var(--border-color);
            border-radius: 8px;
            padding: 1rem;
            font-family: 'Fira Code', Monaco, Consolas, monospace;
            font-size: 0.88rem;
            min-height: 380px;
            white-space: pre-wrap;
            word-break: break-word;
            overflow-y: auto;
        }
        .article-section h2 {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--accent-emerald);
            margin-top: 2rem;
            margin-bottom: 1rem;
        }

        .article-section h3 {
            font-size: 1.15rem;
            font-weight: 600;
            color: var(--text-primary);
            margin-top: 1.25rem;
            margin-bottom: 0.5rem;
        }

        .article-section p, .article-section li {
            color: var(--text-secondary);
        }
        .cron-display,
        .git-display {
            background-color: var(--code-bg);
            border: 1px solid var(--border-color);
            border-radius: 8px;
            padding: 1.25rem;
            font-family: 'Fira Code', Monaco, Consolas, monospace;
            font-size: 0.95rem;
            min-height: 80px;
            color: var(--accent-emerald);
            white-space: pre-wrap;
            word-break: break-word;
        }
        .git-display {
            min-height: 90px;
        }
        .semver-input {
            background-color: var(--code-bg);
            color: var(--text-primary);
            border: 1px solid var(--border-color);
            border-radius: 8px;
            font-family: 'Fira Code', Monaco, Consolas, monospace;
            font-size: 1.2rem;
            letter-spacing: 0.5px;
            padding: 0.75rem 1rem;
        }


        .semver-display {
            background-color: var(--code-bg);
            border: 1px solid var(--border-color);
            border-radius: 8px;
            padding: 1.25rem;
            font-family: 'Fira Code', Monaco, Consolas, monospace;
            font-size: 1.5rem;
            min-height: 80px;
            color: var(--accent-emerald);
            display: flex;
            align-items: center;
            justify-content: center;
        }
.kv-row,
.selector-row,
.secret-row {
            background-color: rgba(9, 13, 22, 0.4);
            border: 1px solid var(--border-color);
            border-radius: 8px;
            padding: 0.75rem;
            margin-bottom: 0.75rem;
        }
        .form-check-input:checked {
            background-color: var(--accent-emerald);
            border-color: var(--accent-emerald);
        }
        .form-range::-webkit-slider-thumb {
            background: var(--accent-emerald);
        }