/* Qubi Reference Manual extends newindex.css; code colors match simulator/styles/main.css */

.manual-page {
    background: var(--bg-primary, #0a0a1a);
    min-height: 100vh;
}

/*
 * newindex.css sets `section { min-height: 100vh; padding: 120px 0 80px; }` (80px/40px on narrow
 * viewports). Manual pages use many <section>s; without this reset each block is a full-screen
 * band with landing-page padding.
 */
/* ~2 lines of body copy (0.98rem × 1.62) after each section before the next heading */
.manual-page section.manual-section {
    --manual-section-gap: calc(0.98rem * 1.62 * 2);
    min-height: 0;
    margin: 0 0 var(--manual-section-gap);
    padding-top: 0;
    padding-left: 0;
    padding-right: 0;
    padding-bottom: 0.35rem;
    position: relative;
    scroll-margin-top: 84px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.manual-page .manual-prose > section.manual-section:first-of-type {
    margin-top: calc(0.98rem * 1.62);
}

/* Comfortable horizontal inset on small screens (Bootstrap .container gutter is ~12px). */
.manual-page .navbar > .container,
.manual-page .manual-hero .container,
.manual-page .manual-shell > .container.manual-grid,
.manual-page footer > .container {
    padding-left: max(clamp(1.35rem, 6vw, 2.75rem), env(safe-area-inset-left, 0px));
    padding-right: max(clamp(1.35rem, 6vw, 2.75rem), env(safe-area-inset-right, 0px));
}

.manual-hero {
    background: linear-gradient(135deg, #AB6FAF 0%, #554A9E 55%, #0a0a1a 100%);
    color: #fff;
    padding: clamp(5.5rem, 16vw, 6.5rem) 0 1.75rem;
    position: relative;
    overflow: hidden;
}

.manual-hero::after {
    content: "";
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse 80% 50% at 50% 100%, rgba(6, 135, 201, 0.22), transparent 55%);
    pointer-events: none;
}

.manual-hero .container {
    position: relative;
    z-index: 1;
}

.manual-kicker {
    font-size: 0.75rem;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.85);
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.manual-title {
    font-family: var(--font-display, 'Khand', sans-serif);
    font-weight: 600;
    font-size: clamp(1.85rem, 4.5vw, 2.85rem);
    line-height: 1.12;
    margin-bottom: 0.5rem;
}

.manual-lead {
    font-size: clamp(0.95rem, 2.2vw, 1.1rem);
    max-width: 40rem;
    color: rgba(241, 245, 249, 0.92);
    line-height: 1.62;
}

.manual-hero .manual-lead a.manual-hero-link {
    color: #fff !important;
    font-weight: 500;
    text-decoration: underline;
    text-decoration-color: rgba(255, 255, 255, 0.35);
    text-underline-offset: 0.15em;
}

.manual-hero .manual-lead a.manual-hero-link:hover {
    color: #fff !important;
    text-decoration-color: rgba(255, 255, 255, 0.65);
}

.manual-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.65rem;
    margin-top: 1.1rem;
}

.btn-manual-primary {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.6rem 1.15rem;
    border-radius: 10px;
    font-weight: 600;
    font-size: 0.92rem;
    background: linear-gradient(135deg, #0687C9, #1A9FE0);
    color: #fff !important;
    text-decoration: none !important;
    border: 1px solid rgba(255, 255, 255, 0.12);
    box-shadow: 0 8px 24px rgba(6, 135, 201, 0.35);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.btn-manual-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 32px rgba(6, 135, 201, 0.45);
    color: #fff !important;
}

.btn-manual-secondary {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.6rem 1.15rem;
    border-radius: 10px;
    font-weight: 600;
    font-size: 0.92rem;
    background: rgba(255, 255, 255, 0.08);
    color: #fff !important;
    text-decoration: none !important;
    border: 1px solid rgba(255, 255, 255, 0.18);
    transition: background 0.2s ease, border-color 0.2s ease;
}

.btn-manual-secondary:hover {
    background: rgba(255, 255, 255, 0.12);
    border-color: rgba(255, 255, 255, 0.28);
    color: #fff !important;
}

.manual-shell {
    padding: 0.5rem 0 1.5rem;
}

.manual-grid {
    display: grid;
    gap: 0.5rem;
    align-items: start;
}

@media (min-width: 992px) {
    .manual-grid {
        grid-template-columns: min(220px, 26%) 1fr;
        gap: 0.75rem;
    }
}

.manual-toc {
    background: var(--bg-card, #141428);
    border: 1px solid var(--border-subtle, rgba(255, 255, 255, 0.06));
    border-radius: 14px;
    padding: 0.65rem 0.75rem;
    box-shadow: var(--shadow-card, 0 4px 20px rgba(0, 0, 0, 0.3));
}

@media (min-width: 992px) {
    .manual-toc {
        position: sticky;
        top: 84px;
    }
}

.manual-toc h2 {
    font-family: var(--font-display, 'Khand', sans-serif);
    font-size: 0.72rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--text-muted, #64748b);
    margin-bottom: 0.35rem;
    font-weight: 600;
}

.manual-toc ul {
    list-style: none;
    margin: 0;
    padding: 0;
}

.manual-toc li {
    margin-bottom: 0.2rem;
}

.manual-toc a {
    display: block;
    padding: 0.32rem 0.4rem;
    border-radius: 6px;
    color: var(--text-secondary, #94a3b8) !important;
    text-decoration: none !important;
    font-size: 0.86rem;
    transition: background 0.15s ease, color 0.15s ease;
}

.manual-toc a:hover,
.manual-toc a:focus-visible {
    background: rgba(171, 111, 175, 0.12);
    color: var(--text-primary, #f1f5f9) !important;
}

.manual-prose {
    display: flex;
    flex-direction: column;
    gap: 0;
    min-width: 0;
}

.manual-page section.manual-section:last-of-type {
    border-bottom: none;
    padding-bottom: 0;
    margin-bottom: 0;
}

.manual-section h2 {
    font-family: var(--font-display, 'Khand', sans-serif);
    font-size: clamp(1.55rem, 3.2vw, 2rem);
    line-height: 1.2;
    color: #fff;
    margin: 0 0 0.35rem;
    font-weight: 600;
}

.manual-section h3 {
    font-size: 1.02rem;
    color: #e2e8f0;
    margin: 0.3rem 0 0.12rem;
    font-weight: 600;
}

.manual-section p,
.manual-section li {
    color: var(--text-secondary, #94a3b8);
    line-height: 1.62;
    font-size: 0.98rem;
    margin: 0 0 0.28rem;
}

.manual-section p:last-child {
    margin-bottom: 0;
}

.manual-section ul,
.manual-section ol {
    padding-left: 1.15rem;
    margin: 0.1rem 0 0.2rem;
}

.manual-section li {
    margin-bottom: 0.2rem;
}

.manual-callout {
    background: linear-gradient(135deg, rgba(85, 74, 158, 0.18), rgba(6, 135, 201, 0.1));
    border: 1px solid rgba(171, 111, 175, 0.22);
    border-radius: 12px;
    padding: 0.65rem 0.8rem;
    margin: 0.1rem 0 0.2rem;
    font-size: 0.95rem;
    line-height: 1.6;
    color: var(--text-secondary, #94a3b8);
}

.manual-callout strong {
    color: #f1f5f9;
}

/* Code blocks: same token palette as simulator Qubi editor (main.css) */
.manual-code {
    background: #0c0c18;
    border: 1px solid var(--border-subtle, rgba(255, 255, 255, 0.08));
    border-radius: 10px;
    padding: 0.65rem 0.8rem;
    overflow-x: auto;
    margin: 0.08rem 0 0.2rem;
    font-family: 'Consolas', 'Monaco', 'Courier New', monospace;
    font-size: 0.8125rem;
    line-height: 1.55;
    color: #cbd5e1;
}

.manual-code .token-default,
.manual-algo-preview.qubi-syntax-preview .token-default {
    color: #cbd5e1;
}

.manual-code .token-comment,
.manual-algo-preview.qubi-syntax-preview .token-comment {
    color: #96addb;
    font-style: italic;
}

.manual-code .token-preprocessor,
.manual-algo-preview.qubi-syntax-preview .token-preprocessor {
    color: #f472b6;
    font-weight: 500;
}

.manual-code .token-gate,
.manual-algo-preview.qubi-syntax-preview .token-gate {
    color: #c084fc;
    font-weight: 600;
}

.manual-code .token-keyword,
.manual-algo-preview.qubi-syntax-preview .token-keyword {
    color: #9295ff;
    font-weight: 600;
}

.manual-code .token-number,
.manual-algo-preview.qubi-syntax-preview .token-number {
    color: #fbbf24;
}

.manual-code .token-target-qubits,
.manual-algo-preview.qubi-syntax-preview .token-target-qubits {
    color: #60a5fa;
}

.manual-code .token-control-qubits,
.manual-algo-preview.qubi-syntax-preview .token-control-qubits {
    color: #63d4b6;
}

.manual-code .token-invalid,
.manual-algo-preview.qubi-syntax-preview .token-invalid {
    color: #ef4444;
    text-decoration: wavy underline;
    text-decoration-color: #ef4444;
}

.manual-code-legend {
    font-size: 0.78rem;
    color: var(--text-muted, #64748b);
    margin: -0.08rem 0 0.2rem;
    line-height: 1.45;
}

.manual-code-legend span {
    margin-right: 0.65rem;
    white-space: nowrap;
}

/* Token legend swatches (overview callout + optional code-legend line) */
.manual-callout .lg,
.manual-code-legend .lg {
    color: #c084fc;
    font-weight: 600;
}

.manual-callout .lk,
.manual-code-legend .lk {
    color: #9295ff;
    font-weight: 600;
}

.manual-callout .ln,
.manual-code-legend .ln {
    color: #fbbf24;
}

.manual-callout .lb,
.manual-code-legend .lb {
    color: #63d4b6;
}

.manual-callout .lp,
.manual-code-legend .lp {
    color: #60a5fa;
}

.manual-callout .lc,
.manual-code-legend .lc {
    color: #96addb;
    font-style: italic;
}

.manual-table-wrap {
    overflow-x: auto;
    margin: 0.08rem 0 0.2rem;
    border-radius: 10px;
    border: 1px solid var(--border-subtle, rgba(255, 255, 255, 0.06));
}

.manual-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9rem;
    min-width: 420px;
}

.manual-table th,
.manual-table td {
    padding: 0.5rem 0.75rem;
    text-align: left;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.manual-table th {
    background: rgba(20, 20, 40, 0.95);
    color: #94a3b8;
    font-weight: 600;
    font-size: 0.72rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.manual-table td {
    color: var(--text-secondary, #94a3b8);
}

.manual-table tr:last-child td {
    border-bottom: none;
}

.manual-table code {
    font-family: 'Consolas', 'Monaco', 'Courier New', monospace;
    color: #c084fc;
    font-size: 0.88em;
    font-weight: 600;
}

.manual-inline {
    font-family: 'Consolas', 'Monaco', 'Courier New', monospace;
    font-size: 0.88em;
    background: rgba(255, 255, 255, 0.06);
    color: #cbd5e1;
    padding: 0.08rem 0.35rem;
    border-radius: 5px;
    border: 1px solid rgba(255, 255, 255, 0.06);
}

.manual-back {
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    color: rgba(255, 255, 255, 0.95) !important;
    text-decoration: none !important;
    font-size: 0.88rem;
    margin-bottom: 0.85rem;
    opacity: 0.95;
}

.manual-back:hover {
    opacity: 1;
    color: #fff !important;
}

.manual-prose a:not(.btn-manual-primary):not(.btn-manual-secondary):not(.manual-back) {
    color: #7dd3fc;
    text-decoration: none;
    font-weight: 500;
}

.manual-prose a:hover {
    text-decoration: underline;
}

.manual-dl {
    margin: 0.08rem 0 0.2rem;
    display: grid;
    gap: 0.22rem 1rem;
}

@media (min-width: 576px) {
    .manual-dl {
        grid-template-columns: 9.5rem 1fr;
    }
}

.manual-dl dt {
    font-family: 'Consolas', 'Monaco', monospace;
    font-size: 0.82rem;
    color: #c084fc;
    font-weight: 600;
}

.manual-dl dd {
    margin: 0;
    font-size: 0.95rem;
    color: var(--text-secondary, #94a3b8);
    line-height: 1.55;
}

/* Algorithm examples browser (loads /simulator/js/algorithms.js) */
.manual-algo-root {
    margin-top: 0.35rem;
}

.manual-algo-browser {
    display: grid;
    gap: 1rem;
    align-items: start;
}

@media (min-width: 768px) {
    .manual-algo-browser {
        grid-template-columns: minmax(11rem, 15rem) minmax(0, 1fr);
    }
}

.manual-algo-chip-panel {
    max-height: 12.5rem;
    overflow-y: auto;
    padding: 0.45rem 0.5rem;
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 10px;
    background: rgba(0, 0, 0, 0.22);
}

.manual-algo-cat {
    margin-bottom: 0.55rem;
}

.manual-algo-cat:last-child {
    margin-bottom: 0;
}

.manual-algo-cat-label {
    display: block;
    font-size: 0.68rem;
    font-weight: 700;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: rgba(148, 163, 184, 0.95);
    margin-bottom: 0.35rem;
}

.manual-algo-chips {
    display: flex;
    flex-wrap: wrap;
    gap: 0.35rem;
}

.manual-algo-chip {
    border: 1px solid rgba(255, 255, 255, 0.1);
    background: rgba(85, 74, 158, 0.2);
    color: var(--text-primary, #e2e8f0);
    font-size: 0.72rem;
    font-weight: 600;
    padding: 0.28rem 0.5rem;
    border-radius: 999px;
    cursor: pointer;
    line-height: 1.2;
    transition: background 0.15s ease, border-color 0.15s ease;
}

.manual-algo-chip:hover {
    border-color: rgba(125, 211, 252, 0.35);
    background: rgba(6, 135, 201, 0.18);
}

.manual-algo-chip.is-active {
    border-color: rgba(171, 111, 175, 0.65);
    background: rgba(171, 111, 175, 0.28);
    color: #fff;
}

.manual-algo-detail-title {
    font-size: 1.05rem;
    margin: 0 0 0.65rem;
    font-weight: 700;
    color: var(--text-primary, #f1f5f9);
}

.manual-algo-params-inner {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    margin-bottom: 0.65rem;
}

.manual-algo-param label {
    display: block;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-secondary, #94a3b8);
    margin-bottom: 0.2rem;
}

.manual-algo-select,
.manual-algo-input {
    width: 100%;
    max-width: 20rem;
    font-size: 0.85rem;
    padding: 0.35rem 0.5rem;
    border-radius: 6px;
    border: 1px solid rgba(255, 255, 255, 0.12);
    background: rgba(10, 10, 26, 0.85);
    color: var(--text-primary, #e2e8f0);
}

.manual-algo-comments-label {
    display: flex;
    align-items: center;
    gap: 0.45rem;
    font-size: 0.82rem;
    color: var(--text-secondary, #94a3b8);
    margin-bottom: 0.45rem;
    cursor: pointer;
}

.manual-algo-comments-label input {
    width: 15px;
    height: 15px;
    cursor: pointer;
}

.manual-algo-preview {
    max-height: 11rem;
    overflow: auto;
    margin: 0 0 0.35rem;
    padding: 0.65rem 0.75rem;
    font-size: 0.72rem;
    line-height: 1.45;
    font-family: ui-monospace, 'Cascadia Code', 'Consolas', monospace;
    color: #e2e8f0;
    background: rgba(0, 0, 0, 0.35);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    white-space: pre-wrap;
    word-break: break-word;
}

.manual-algo-preview.preview-error {
    color: #fecaca;
    border-color: rgba(248, 113, 113, 0.4);
    background: rgba(127, 29, 29, 0.22);
}

.manual-algo-meta {
    margin: 0 0 0.5rem;
    font-size: 0.78rem;
    color: var(--text-secondary, #94a3b8);
}

.manual-algo-actions {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.65rem;
}

.manual-algo-copy-btn {
    border: none;
    border-radius: 8px;
    padding: 0.45rem 1rem;
    font-size: 0.82rem;
    font-weight: 600;
    cursor: pointer;
    color: #fff;
    background: linear-gradient(135deg, #554a9e 0%, #7c3aed 100%);
}

.manual-algo-copy-btn:hover {
    filter: brightness(1.08);
}

.manual-algo-sim-link {
    font-size: 0.85rem;
    font-weight: 600;
    color: #7dd3fc;
    text-decoration: none;
}

.manual-algo-sim-link:hover {
    text-decoration: underline;
}

.manual-algo-validation {
    margin: 0.5rem 0 0;
    font-size: 0.78rem;
    min-height: 1.2em;
}

.manual-algo-validation.is-error {
    color: #fca5a5;
}