/* XiRush — tutorial (manual) page */

/* ── Bilingual show/hide (driven by <html data-lang>) ── */
html[data-lang="en"] .i18n-zh { display: none !important; }
html[data-lang="zh-CN"] .i18n-en,
html:not([data-lang="en"]) .i18n-en { display: none !important; }

/* ── Reading progress bar ── */
.reading-progress {
    position: fixed;
    top: 0;
    left: 0;
    height: 3px;
    width: 0%;
    z-index: 1200;
    background: linear-gradient(90deg, var(--accent), var(--accent-2));
    box-shadow: 0 0 12px rgba(0, 240, 212, 0.6);
    transition: width 0.1s linear;
}

/* ── Wider container for two-column doc ── */
.page-tutorial .container {
    max-width: 1240px;
}

/* ── Hero cover ── */
.page-tutorial .manual-cover {
    position: relative;
    margin-top: 0.5rem;
    margin-bottom: 1.75rem;
    padding: 2.6rem 2.2rem;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-subtle);
    background:
        radial-gradient(120% 140% at 0% 0%, rgba(0, 240, 212, 0.12), transparent 55%),
        radial-gradient(120% 140% at 100% 0%, rgba(107, 125, 255, 0.14), transparent 55%),
        var(--bg-surface);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    overflow: hidden;
}

.page-tutorial .search-wrap {
    margin-top: 0.25rem;
    margin-bottom: 2.25rem;
}

.page-tutorial .manual-cover::after {
    content: '';
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
    background-size: 34px 34px;
    mask-image: radial-gradient(ellipse 70% 80% at 90% 10%, black, transparent 70%);
    pointer-events: none;
}

.page-tutorial .manual-cover > * { position: relative; z-index: 1; }

.page-tutorial .manual-cover .cover-eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    font-size: 0.76rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--accent);
    padding: 0.4rem 0.95rem;
    border-radius: 999px;
    background: rgba(0, 240, 212, 0.08);
    border: 1px solid rgba(0, 240, 212, 0.22);
    margin-bottom: 1.25rem;
}

.page-tutorial .manual-cover h1 {
    font-size: clamp(1.9rem, 4vw, 3rem);
    font-weight: 800;
    line-height: 1.12;
    letter-spacing: -0.03em;
    margin: 0 0 0.9rem;
    background: linear-gradient(135deg, #ffffff 15%, var(--accent) 55%, var(--accent-2) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.page-tutorial .manual-cover .cover-lead {
    color: var(--text-secondary);
    font-size: 1.02rem;
    line-height: 1.8;
    max-width: 760px;
    margin: 0 0 1.4rem;
}

.page-tutorial .manual-cover .cover-lead strong { color: var(--text-primary); }

/* Slogan banner */
.page-tutorial .slogan-banner {
    display: inline-flex;
    align-items: center;
    gap: 0.7rem;
    padding: 0.7rem 1.3rem;
    border-radius: 12px;
    font-weight: 700;
    font-size: 1.02rem;
    letter-spacing: 0.02em;
    color: #04120f;
    background: linear-gradient(135deg, var(--accent), var(--accent-2));
    box-shadow: 0 12px 30px rgba(0, 240, 212, 0.25);
}

.page-tutorial .slogan-banner svg { width: 20px; height: 20px; }

/* Revision meta */
.page-tutorial .cover-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 0.7rem;
    margin-top: 1.5rem;
}

.page-tutorial .cover-meta .meta-chip {
    display: inline-flex;
    flex-direction: column;
    gap: 0.15rem;
    padding: 0.6rem 1rem;
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--border-subtle);
    min-width: 150px;
}

.page-tutorial .cover-meta .meta-label {
    font-size: 0.72rem;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--text-muted);
}

.page-tutorial .cover-meta .meta-value {
    font-size: 0.94rem;
    font-weight: 600;
    color: var(--text-primary);
}

/* ── Two-column layout ── */
.page-tutorial .tutorial-layout {
    display: grid;
    grid-template-columns: 258px minmax(0, 1fr);
    gap: 2.2rem;
    margin-top: 2rem;
    align-items: start;
}

/* ── Sticky TOC ── */
.page-tutorial .toc {
    position: sticky;
    top: 92px;
    max-height: calc(100vh - 120px);
    overflow-y: auto;
    padding: 1.1rem 1rem;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-subtle);
    background: var(--bg-surface);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    scrollbar-width: thin;
    scrollbar-color: rgba(0, 240, 212, 0.3) transparent;
}

.page-tutorial .toc::-webkit-scrollbar { width: 6px; }
.page-tutorial .toc::-webkit-scrollbar-thumb {
    background: rgba(0, 240, 212, 0.3);
    border-radius: 6px;
}

.page-tutorial .toc-title {
    font-size: 0.74rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--text-muted);
    padding: 0 0.5rem 0.65rem;
}

.page-tutorial .toc a {
    display: block;
    position: relative;
    padding: 0.5rem 0.75rem;
    margin: 0.1rem 0;
    border-radius: 8px;
    font-size: 0.86rem;
    line-height: 1.35;
    color: var(--text-secondary);
    text-decoration: none;
    border-left: 2px solid transparent;
    transition: color 0.2s, background 0.2s, border-color 0.2s;
}

.page-tutorial .toc a:hover {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.05);
}

.page-tutorial .toc a.is-active {
    color: var(--accent);
    background: rgba(0, 240, 212, 0.08);
    border-left-color: var(--accent);
}

/* ── Content column ── */
.page-tutorial .tutorial-content { min-width: 0; }

.page-tutorial .doc-section {
    scroll-margin-top: 88px;
    margin-bottom: 1.4rem;
    padding: 1.7rem 1.8rem;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-subtle);
    background: var(--bg-surface);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    transition: border-color 0.4s, box-shadow 0.4s;
}

.page-tutorial .doc-section:hover {
    border-color: var(--border-glow);
    box-shadow: var(--shadow-glow);
}

.page-tutorial .doc-section > h2 {
    display: flex;
    align-items: center;
    gap: 0.65rem;
    font-size: 1.4rem;
    font-weight: 800;
    letter-spacing: -0.02em;
    margin: 0 0 0.4rem;
    color: var(--text-primary);
}

.page-tutorial .doc-section > h2 .sec-index {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 34px;
    height: 34px;
    flex: 0 0 34px;
    border-radius: 10px;
    font-size: 0.92rem;
    color: #04120f;
    background: linear-gradient(135deg, var(--accent), var(--accent-2));
    box-shadow: 0 6px 16px rgba(0, 240, 212, 0.28);
}

.page-tutorial .sec-sub {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin: 0 0 1.25rem;
    padding-left: 2.6rem;
}

.page-tutorial .doc-section h3 {
    font-size: 1.08rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 1.6rem 0 0.7rem;
    padding-bottom: 0.4rem;
    border-bottom: 1px solid var(--border-subtle);
}

.page-tutorial .doc-section h4 {
    font-size: 0.98rem;
    font-weight: 700;
    color: var(--accent);
    margin: 1.1rem 0 0.5rem;
}

.page-tutorial .doc-section p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.85;
    margin: 0.6rem 0;
}

.page-tutorial .doc-section p strong,
.page-tutorial .doc-section li strong { color: var(--text-primary); }

.page-tutorial .doc-section ul,
.page-tutorial .doc-section ol {
    margin: 0.6rem 0;
    padding-left: 1.4rem;
}

.page-tutorial .doc-section li {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.8;
    margin: 0.4rem 0;
}

.page-tutorial .doc-section a.inline-link {
    color: var(--accent);
    text-decoration: none;
    border-bottom: 1px solid rgba(0, 240, 212, 0.3);
    transition: color 0.25s, border-color 0.25s;
    word-break: break-all;
}

.page-tutorial .doc-section a.inline-link:hover {
    color: #fff;
    border-color: var(--accent);
}

/* Highlight text tones (map PDF colored emphasis) */
.page-tutorial .hl-safe { color: #4be3a0; font-weight: 600; }
.page-tutorial .hl-warn { color: var(--accent-warm); font-weight: 600; }
.page-tutorial .hl-danger { color: #ff6b6b; font-weight: 600; }
.page-tutorial .hl-accent { color: var(--accent); font-weight: 600; }

/* ── Method comparison cards ── */
.page-tutorial .method-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1rem;
    margin: 0.5rem 0 0.5rem;
}

.page-tutorial .method-card {
    position: relative;
    padding: 1.2rem 1.15rem 1.25rem;
    border-radius: var(--radius-md);
    background: var(--bg-elevated);
    border: 1px solid var(--border-subtle);
    overflow: hidden;
    transition: transform 0.35s var(--ease-out), border-color 0.35s;
}

.page-tutorial .method-card:hover { transform: translateY(-4px); }

.page-tutorial .method-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 3px;
}

.page-tutorial .method-card.lvl-safe::before { background: linear-gradient(90deg, #2fd47f, #4be3a0); }
.page-tutorial .method-card.lvl-mid::before { background: linear-gradient(90deg, var(--accent), var(--accent-2)); }
.page-tutorial .method-card.lvl-danger::before { background: linear-gradient(90deg, #ff6b6b, #ff9f43); }

.page-tutorial .method-card .m-title {
    font-size: 1.02rem;
    font-weight: 800;
    color: var(--text-primary);
    margin-bottom: 0.85rem;
}

.page-tutorial .method-card .m-badge {
    display: inline-block;
    font-size: 0.72rem;
    font-weight: 700;
    padding: 0.25rem 0.65rem;
    border-radius: 999px;
    margin-bottom: 0.85rem;
}

.page-tutorial .method-card.lvl-safe .m-badge { color: #4be3a0; background: rgba(75, 227, 160, 0.12); border: 1px solid rgba(75, 227, 160, 0.3); }
.page-tutorial .method-card.lvl-mid .m-badge { color: var(--accent); background: rgba(0, 240, 212, 0.1); border: 1px solid rgba(0, 240, 212, 0.3); }
.page-tutorial .method-card.lvl-danger .m-badge { color: #ff6b6b; background: rgba(255, 107, 107, 0.12); border: 1px solid rgba(255, 107, 107, 0.3); }

.page-tutorial .method-card dl { margin: 0; }
.page-tutorial .method-card dt {
    font-size: 0.72rem;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    color: var(--text-muted);
    margin-top: 0.7rem;
}
.page-tutorial .method-card dd {
    margin: 0.15rem 0 0;
    font-size: 0.9rem;
    line-height: 1.5;
    color: var(--text-secondary);
}

/* ── Pros / Cons two columns ── */
.page-tutorial .proscons {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    margin: 0.8rem 0;
}

.page-tutorial .pc-col {
    padding: 1rem 1.1rem;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-subtle);
    background: rgba(255, 255, 255, 0.02);
}

.page-tutorial .pc-col.pros { border-color: rgba(75, 227, 160, 0.22); }
.page-tutorial .pc-col.cons { border-color: rgba(255, 107, 107, 0.22); }

.page-tutorial .pc-col h4 {
    margin: 0 0 0.5rem;
    font-size: 0.95rem;
}
.page-tutorial .pc-col.pros h4 { color: #4be3a0; }
.page-tutorial .pc-col.cons h4 { color: #ff6b6b; }

.page-tutorial .pc-col ul { list-style: none; padding: 0; margin: 0; }
.page-tutorial .pc-col li {
    position: relative;
    padding-left: 1.5rem;
    margin: 0.45rem 0;
    font-size: 0.9rem;
    line-height: 1.65;
}
.page-tutorial .pc-col.pros li::before {
    content: '✓';
    position: absolute; left: 0;
    color: #4be3a0; font-weight: 700;
}
.page-tutorial .pc-col.cons li::before {
    content: '✕';
    position: absolute; left: 0;
    color: #ff6b6b; font-weight: 700;
}

/* ── Step flow ── */
.page-tutorial .stepper {
    counter-reset: step;
    margin: 0.9rem 0;
    padding: 0;
    list-style: none;
}

.page-tutorial .stepper > li {
    position: relative;
    padding: 0 0 1.3rem 2.9rem;
    border-left: 2px solid var(--border-subtle);
    margin-left: 0.9rem;
}

.page-tutorial .stepper > li:last-child { border-left-color: transparent; padding-bottom: 0.2rem; }

.page-tutorial .stepper > li::before {
    counter-increment: step;
    content: counter(step);
    position: absolute;
    left: -1rem;
    top: -0.15rem;
    width: 30px;
    height: 30px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    font-size: 0.85rem;
    font-weight: 700;
    color: #04120f;
    background: linear-gradient(135deg, var(--accent), var(--accent-2));
    box-shadow: 0 4px 12px rgba(0, 240, 212, 0.3);
}

.page-tutorial .stepper > li p { margin: 0; line-height: 1.8; }

/* ── Callout boxes ── */
.page-tutorial .callout {
    position: relative;
    display: flex;
    gap: 0.85rem;
    padding: 1rem 1.15rem;
    margin: 1rem 0;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-subtle);
    background: rgba(255, 255, 255, 0.02);
}

.page-tutorial .callout .co-icon {
    flex: 0 0 22px;
    width: 22px;
    height: 22px;
    margin-top: 0.15rem;
}
.page-tutorial .callout .co-icon svg { width: 22px; height: 22px; }

.page-tutorial .callout .co-body { min-width: 0; }
.page-tutorial .callout .co-body > *:first-child { margin-top: 0; }
.page-tutorial .callout .co-body > *:last-child { margin-bottom: 0; }
.page-tutorial .callout .co-title {
    font-weight: 700;
    font-size: 0.9rem;
    margin-bottom: 0.2rem;
    display: block;
}

.page-tutorial .callout.tip { border-color: rgba(0, 240, 212, 0.3); background: rgba(0, 240, 212, 0.05); }
.page-tutorial .callout.tip .co-icon, .page-tutorial .callout.tip .co-title { color: var(--accent); }

.page-tutorial .callout.safe { border-color: rgba(75, 227, 160, 0.3); background: rgba(75, 227, 160, 0.05); }
.page-tutorial .callout.safe .co-icon, .page-tutorial .callout.safe .co-title { color: #4be3a0; }

.page-tutorial .callout.warning { border-color: rgba(255, 179, 71, 0.32); background: rgba(255, 179, 71, 0.06); }
.page-tutorial .callout.warning .co-icon, .page-tutorial .callout.warning .co-title { color: var(--accent-warm); }

.page-tutorial .callout.danger { border-color: rgba(255, 107, 107, 0.34); background: rgba(255, 107, 107, 0.06); }
.page-tutorial .callout.danger .co-icon, .page-tutorial .callout.danger .co-title { color: #ff6b6b; }

/* ── Copyable code token ── */
.page-tutorial .code-token {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    font-family: 'SFMono-Regular', 'JetBrains Mono', Consolas, monospace;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--accent);
    background: rgba(0, 240, 212, 0.08);
    border: 1px solid rgba(0, 240, 212, 0.25);
    border-radius: 7px;
    padding: 0.12rem 0.5rem;
    cursor: pointer;
    transition: background 0.2s, border-color 0.2s, transform 0.1s;
    vertical-align: baseline;
    white-space: nowrap;
}

.page-tutorial .code-token:hover {
    background: rgba(0, 240, 212, 0.16);
    border-color: var(--accent);
}
.page-tutorial .code-token:active { transform: scale(0.96); }

.page-tutorial .code-token .copy-ic {
    width: 13px;
    height: 13px;
    opacity: 0.7;
}

/* ── Keybind table ── */
.page-tutorial .keys-table-wrap {
    overflow-x: auto;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-subtle);
}

.page-tutorial table.keys-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9rem;
    min-width: 520px;
}

.page-tutorial .keys-table thead th {
    text-align: left;
    padding: 0.85rem 1rem;
    font-size: 0.78rem;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    color: var(--text-muted);
    background: rgba(255, 255, 255, 0.03);
    border-bottom: 1px solid var(--border-subtle);
}

.page-tutorial .keys-table tbody td {
    padding: 0.75rem 1rem;
    color: var(--text-secondary);
    border-bottom: 1px solid var(--border-subtle);
    line-height: 1.5;
}

.page-tutorial .keys-table tbody tr:last-child td { border-bottom: none; }
.page-tutorial .keys-table tbody tr:hover td { background: rgba(0, 240, 212, 0.04); }
.page-tutorial .keys-table td.key-cell { white-space: nowrap; }

.page-tutorial kbd {
    display: inline-block;
    font-family: 'SFMono-Regular', Consolas, monospace;
    font-size: 0.82rem;
    font-weight: 700;
    color: var(--text-primary);
    background: linear-gradient(180deg, rgba(255,255,255,0.09), rgba(255,255,255,0.03));
    border: 1px solid rgba(255, 255, 255, 0.14);
    border-bottom-width: 2px;
    border-radius: 6px;
    padding: 0.12rem 0.5rem;
    min-width: 1.6rem;
    text-align: center;
    box-shadow: 0 1px 0 rgba(0, 0, 0, 0.3);
}

/* ── Accordion (FAQ) ── */
.page-tutorial .qa {
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    background: rgba(255, 255, 255, 0.02);
    margin: 0.6rem 0;
    overflow: hidden;
}

.page-tutorial .qa summary {
    cursor: pointer;
    list-style: none;
    padding: 0.95rem 1.15rem;
    font-weight: 600;
    font-size: 0.95rem;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem;
    transition: background 0.2s;
}

.page-tutorial .qa summary::-webkit-details-marker { display: none; }
.page-tutorial .qa summary:hover { background: rgba(255, 255, 255, 0.03); }

.page-tutorial .qa summary .qa-mark {
    flex: 0 0 auto;
    width: 20px; height: 20px;
    color: var(--accent);
    transition: transform 0.3s var(--ease-out);
}
.page-tutorial .qa[open] summary .qa-mark { transform: rotate(45deg); }

.page-tutorial .qa .qa-body {
    padding: 0 1.15rem 1.1rem;
}
.page-tutorial .qa .qa-body p:first-child { margin-top: 0; }

/* ── Back to top ── */
.page-tutorial .back-top {
    position: fixed;
    right: 1.6rem;
    bottom: 1.6rem;
    width: 46px;
    height: 46px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    border: 1px solid var(--border-glow);
    background: rgba(14, 16, 32, 0.85);
    color: var(--accent);
    cursor: pointer;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    opacity: 0;
    visibility: hidden;
    transform: translateY(12px);
    transition: opacity 0.3s, transform 0.3s, visibility 0.3s, box-shadow 0.3s;
    z-index: 1100;
}

.page-tutorial .back-top.is-visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}
.page-tutorial .back-top:hover { box-shadow: var(--shadow-glow); }
.page-tutorial .back-top svg { width: 20px; height: 20px; }

/* ── Copy toast ── */
.page-tutorial .copy-toast {
    position: fixed;
    left: 50%;
    bottom: 2rem;
    transform: translateX(-50%) translateY(16px);
    padding: 0.65rem 1.2rem;
    border-radius: 10px;
    background: rgba(14, 16, 32, 0.95);
    border: 1px solid var(--border-glow);
    color: var(--text-primary);
    font-size: 0.88rem;
    font-weight: 600;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.25s, transform 0.25s, visibility 0.25s;
    z-index: 1300;
    box-shadow: var(--shadow-soft);
}

.page-tutorial .copy-toast.is-visible {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
}

/* ── No search results ── */
.page-tutorial .no-results {
    display: none;
    text-align: center;
    padding: 2.5rem 1rem;
    color: var(--text-muted);
    font-size: 0.95rem;
}

/* ── Mobile TOC toggle ── */
.page-tutorial .toc-toggle {
    display: none;
}

/* ── Responsive ── */
@media (max-width: 960px) {
    .page-tutorial .tutorial-layout {
        grid-template-columns: 1fr;
    }

    .page-tutorial .toc {
        position: static;
        max-height: none;
        margin-bottom: 1rem;
    }

    .page-tutorial .toc.is-collapsed .toc-list { display: none; }

    .page-tutorial .toc-toggle {
        display: flex;
        align-items: center;
        justify-content: space-between;
        width: 100%;
        background: none;
        border: none;
        color: var(--text-primary);
        font-size: 0.82rem;
        font-weight: 700;
        letter-spacing: 0.08em;
        text-transform: uppercase;
        cursor: pointer;
        padding: 0.2rem 0.5rem;
    }
    .page-tutorial .toc-toggle svg { width: 18px; height: 18px; transition: transform 0.3s; }
    .page-tutorial .toc.is-collapsed .toc-toggle svg { transform: rotate(-90deg); }
    .page-tutorial .toc .toc-title { display: none; }
}

@media (max-width: 640px) {
    .page-tutorial .method-grid { grid-template-columns: 1fr; }
    .page-tutorial .proscons { grid-template-columns: 1fr; }
    .page-tutorial .manual-cover { padding: 1.8rem 1.3rem; }
    .page-tutorial .doc-section { padding: 1.3rem 1.15rem; }
    .page-tutorial .doc-section > h2 { font-size: 1.2rem; }
    .page-tutorial .sec-sub { padding-left: 0; }
    .page-tutorial .back-top { right: 1rem; bottom: 1rem; }
}

@media (prefers-reduced-motion: reduce) {
    .page-tutorial .method-card,
    .page-tutorial .qa summary .qa-mark,
    .reading-progress { transition: none; }
}
