/* ===================================================== DV HANDBOOK — BOOK / DOCUMENTATION UI Dedicated stylesheet for the Topics page (topics.html) Applied only when is set. ===================================================== */ .handbook-mode { --hb-brand-1: #6366f1; --hb-brand-2: #06b6d4; --hb-brand-soft: rgba(99, 102, 241, 0.12); --hb-ink-900: #e8eaf1; --hb-ink-700: #b5bac8; --hb-ink-500: #7a8098; --hb-ink-400: #5c627a; --hb-surface-0: #0b0d14; --hb-surface-1: #11141d; --hb-surface-2: #171b26; --hb-surface-3: #1d2231; --hb-border: rgba(255, 255, 255, 0.07); --hb-border-strong: rgba(255, 255, 255, 0.12); --hb-note-blue: rgba(56, 189, 248, 0.10); --hb-note-blue-border: rgba(56, 189, 248, 0.28); --hb-note-amber: rgba(245, 158, 11, 0.10); --hb-note-amber-border: rgba(245, 158, 11, 0.28); --hb-note-rose: rgba(244, 63, 94, 0.10); --hb-note-rose-border: rgba(244, 63, 94, 0.28); --hb-note-green: rgba(34, 197, 94, 0.10); --hb-note-green-border: rgba(34, 197, 94, 0.28); background: var(--hb-surface-0); color: var(--hb-ink-900); font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif; } /* Hide the original animated background; the handbook has its own canvas */ .handbook-mode .bg-circuit, .handbook-mode .grid-overlay { display: none !important; } /* ===== Reading-progress bar (top, under navbar) ===== */ .hb-progress { position: fixed; top: 64px; left: 0; right: 0; height: 3px; background: rgba(255, 255, 255, 0.04); z-index: 50; } .hb-progress-bar { height: 100%; width: 0%; background: linear-gradient(90deg, var(--hb-brand-1), var(--hb-brand-2)); transition: width 0.1s linear; box-shadow: 0 0 10px rgba(99, 102, 241, 0.5); } /* ===== Shell (3-column layout) ===== */ .book-shell { display: grid; grid-template-columns: 280px minmax(0, 1fr) 300px; gap: 2.5rem; max-width: 1480px; margin: 0 auto; padding: 5.5rem 2rem 4rem; align-items: start; } @media (max-width: 1200px) { .book-shell { grid-template-columns: 260px minmax(0, 1fr); } .hb-utility { display: none; } } @media (max-width: 900px) { .book-shell { grid-template-columns: 1fr; padding: 5.5rem 1rem 3rem; } .hb-toc { display: none; } } /* ===== Left: Table of Contents sidebar ===== */ .hb-toc { position: sticky; top: 90px; max-height: calc(100vh - 110px); overflow-y: auto; padding-right: 0.5rem; scrollbar-width: thin; } .hb-toc::-webkit-scrollbar { width: 6px; } .hb-toc::-webkit-scrollbar-thumb { background: #2a2f40; border-radius: 3px; } .hb-toc-label { font-size: 0.7rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.12em; color: var(--hb-ink-500); margin-bottom: 0.85rem; padding-left: 0.5rem; } .hb-search { position: relative; margin-bottom: 1.25rem; } .hb-search input { width: 100%; padding: 0.6rem 0.85rem 0.6rem 2.25rem; background: var(--hb-surface-1); border: 1px solid var(--hb-border); border-radius: 10px; color: var(--hb-ink-900); font-size: 0.9rem; font-family: inherit; transition: border-color 0.15s, background 0.15s; } .hb-search input::placeholder { color: var(--hb-ink-500); } .hb-search input:focus { outline: none; border-color: rgba(99, 102, 241, 0.5); background: var(--hb-surface-2); } .hb-search::before { content: "🔍"; position: absolute; left: 0.7rem; top: 50%; transform: translateY(-50%); font-size: 0.85rem; opacity: 0.5; } .hb-toc-list { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 1px; } .hb-toc-item { position: relative; } .hb-toc-link { display: flex; align-items: center; gap: 0.7rem; padding: 0.55rem 0.85rem; border-radius: 8px; color: var(--hb-ink-700); text-decoration: none; font-size: 0.91rem; font-weight: 500; transition: background 0.15s, color 0.15s, transform 0.15s; border-left: 2px solid transparent; } .hb-toc-link:hover { background: var(--hb-surface-1); color: var(--hb-ink-900); } .hb-toc-link .hb-toc-num { font-family: 'JetBrains Mono', monospace; font-size: 0.72rem; color: var(--hb-ink-400); min-width: 24px; font-weight: 600; } .hb-toc-link .hb-toc-icon { font-size: 1rem; line-height: 1; } .hb-toc-link.active { background: var(--hb-brand-soft); color: var(--hb-ink-900); border-left-color: var(--hb-brand-1); } .hb-toc-link.active .hb-toc-num { color: var(--hb-brand-1); } .hb-toc-item.hidden { display: none; } .hb-toc-footer { margin-top: 1.5rem; padding-top: 1rem; border-top: 1px solid var(--hb-border); font-size: 0.78rem; color: var(--hb-ink-500); padding-left: 0.5rem; } .hb-toc-footer strong { color: var(--hb-ink-900); } /* ===== Center: Chapter reading area ===== */ .hb-content { min-width: 0; max-width: 780px; margin: 0 auto; } .hb-pagebar { display: flex; align-items: center; justify-content: space-between; font-family: 'JetBrains Mono', monospace; font-size: 0.72rem; letter-spacing: 0.15em; color: var(--hb-ink-500); text-transform: uppercase; padding: 0.6rem 0; border-bottom: 1px solid var(--hb-border); margin-bottom: 2rem; } .hb-pagebar .hb-breadcrumb { display: flex; gap: 0.5rem; align-items: center; } .hb-pagebar .hb-breadcrumb .sep { opacity: 0.4; } .chapter-page { display: none; animation: fadeInUp 0.35s cubic-bezier(0.2, 0.8, 0.2, 1); } .chapter-page.active { display: block; } @keyframes fadeInUp { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: none; } } .chapter-hero { padding-bottom: 1.75rem; margin-bottom: 2rem; border-bottom: 1px solid var(--hb-border); } .chapter-kicker { display: inline-flex; align-items: center; gap: 0.5rem; font-family: 'JetBrains Mono', monospace; font-size: 0.72rem; letter-spacing: 0.15em; text-transform: uppercase; color: var(--hb-brand-1); font-weight: 600; margin-bottom: 0.9rem; } .chapter-kicker .dot { width: 6px; height: 6px; border-radius: 50%; background: var(--hb-brand-1); box-shadow: 0 0 8px var(--hb-brand-1); } .chapter-title { font-size: clamp(2rem, 4vw, 2.6rem); font-weight: 800; letter-spacing: -0.025em; line-height: 1.12; margin: 0 0 0.75rem; color: var(--hb-ink-900); display: flex; align-items: center; gap: 0.8rem; } .chapter-title .title-icon { font-size: 0.85em; } .chapter-subtitle { color: var(--hb-ink-700); font-size: 1.05rem; line-height: 1.6; margin: 0 0 1.25rem; max-width: 680px; } .chapter-meta { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-top: 1rem; } .chapter-pill { display: inline-flex; align-items: center; gap: 0.4rem; padding: 0.3rem 0.75rem; background: var(--hb-surface-1); border: 1px solid var(--hb-border); border-radius: 999px; font-size: 0.78rem; color: var(--hb-ink-700); font-weight: 500; } .chapter-pill .pill-icon { font-size: 0.85rem; } .chapter-pill.bookmark { cursor: pointer; transition: all 0.15s; user-select: none; } .chapter-pill.bookmark:hover { background: var(--hb-surface-2); border-color: rgba(99, 102, 241, 0.35); color: var(--hb-ink-900); } .chapter-pill.bookmark.active { background: rgba(245, 158, 11, 0.12); border-color: rgba(245, 158, 11, 0.35); color: #f59e0b; } /* ===== Chapter section blocks ===== */ .chapter-block { margin-bottom: 2.25rem; } .chapter-block > h3 { font-size: 1.15rem; font-weight: 700; letter-spacing: -0.01em; color: var(--hb-ink-900); margin: 0 0 0.9rem; display: flex; align-items: center; gap: 0.55rem; } .chapter-block > h3::before { content: ""; display: inline-block; width: 3px; height: 1.1em; background: linear-gradient(180deg, var(--hb-brand-1), var(--hb-brand-2)); border-radius: 2px; } .chapter-block p { color: var(--hb-ink-700); line-height: 1.72; font-size: 1rem; margin: 0 0 1rem; } .chapter-block p strong, .chapter-block li strong { color: var(--hb-ink-900); } /* Concept list — clean bulleted rows */ .concept-list { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 0.5rem; } .concept-list li { position: relative; padding: 0.75rem 0.95rem 0.75rem 2.25rem; background: var(--hb-surface-1); border: 1px solid var(--hb-border); border-radius: 10px; color: var(--hb-ink-700); font-size: 0.95rem; line-height: 1.55; transition: background 0.15s, border-color 0.15s; } .concept-list li::before { content: "▸"; position: absolute; left: 0.9rem; top: 0.75rem; color: var(--hb-brand-1); font-size: 0.85rem; line-height: 1.55; } .concept-list li:hover { background: var(--hb-surface-2); border-color: var(--hb-border-strong); } /* Resource cards */ .resource-grid { display: grid; grid-template-columns: 1fr; gap: 0.6rem; } .resource-card { display: flex; align-items: center; gap: 0.85rem; padding: 0.8rem 1rem; background: var(--hb-surface-1); border: 1px solid var(--hb-border); border-radius: 10px; color: var(--hb-ink-900); text-decoration: none; transition: background 0.15s, border-color 0.15s, transform 0.15s; } .resource-card:hover { background: var(--hb-surface-2); border-color: rgba(99, 102, 241, 0.35); transform: translateX(2px); } .resource-card .res-icon { width: 36px; height: 36px; display: grid; place-items: center; background: linear-gradient(135deg, rgba(99, 102, 241, 0.18), rgba(6, 182, 212, 0.12)); border: 1px solid rgba(99, 102, 241, 0.22); border-radius: 9px; font-size: 1rem; flex-shrink: 0; } .resource-card .res-body { flex: 1; min-width: 0; } .resource-card .res-title { display: block; font-weight: 600; font-size: 0.93rem; color: var(--hb-ink-900); line-height: 1.35; } .resource-card .res-meta { display: block; font-size: 0.77rem; color: var(--hb-ink-500); margin-top: 0.2rem; } .resource-card .res-arrow { color: var(--hb-ink-500); flex-shrink: 0; transition: transform 0.2s, color 0.2s; } .resource-card:hover .res-arrow { color: var(--hb-brand-1); transform: translateX(3px); } .resource-card.text-only { cursor: default; } .resource-card.text-only:hover { transform: none; border-color: var(--hb-border); } /* Note / callout boxes */ .note-box { position: relative; padding: 1rem 1.15rem 1rem 3rem; border-radius: 12px; border: 1px solid; margin: 1.25rem 0; font-size: 0.93rem; line-height: 1.6; color: var(--hb-ink-700); } .note-box::before { position: absolute; top: 0.95rem; left: 1rem; font-size: 1.1rem; line-height: 1; } .note-box .note-title { display: block; font-weight: 700; color: var(--hb-ink-900); margin-bottom: 0.2rem; font-size: 0.85rem; text-transform: uppercase; letter-spacing: 0.08em; } .note-box.tip { background: var(--hb-note-blue); border-color: var(--hb-note-blue-border); } .note-box.tip::before { content: "💡"; } .note-box.tip .note-title { color: #38bdf8; } .note-box.focus { background: var(--hb-note-green); border-color: var(--hb-note-green-border); } .note-box.focus::before { content: "🎯"; } .note-box.focus .note-title { color: #4ade80; } .note-box.warning { background: var(--hb-note-amber); border-color: var(--hb-note-amber-border); } .note-box.warning::before { content: "⚠️"; } .note-box.warning .note-title { color: #f59e0b; } .note-box.mistake { background: var(--hb-note-rose); border-color: var(--hb-note-rose-border); } .note-box.mistake::before { content: "🚫"; } .note-box.mistake .note-title { color: #fb7185; } .note-box a { color: var(--hb-brand-1); font-weight: 600; text-decoration: none; border-bottom: 1px dashed rgba(99, 102, 241, 0.4); } .note-box a:hover { color: var(--hb-brand-2); } /* ===== Chapter nav (prev / next) ===== */ .chapter-nav { margin-top: 3rem; padding-top: 1.75rem; border-top: 1px solid var(--hb-border); display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; } .chapter-nav-btn { display: flex; flex-direction: column; gap: 0.35rem; padding: 1rem 1.15rem; background: var(--hb-surface-1); border: 1px solid var(--hb-border); border-radius: 12px; color: var(--hb-ink-900); text-decoration: none; transition: background 0.15s, border-color 0.15s, transform 0.15s; cursor: pointer; font-family: inherit; text-align: left; } .chapter-nav-btn:hover:not(:disabled) { background: var(--hb-surface-2); border-color: rgba(99, 102, 241, 0.35); } .chapter-nav-btn:disabled { opacity: 0.35; cursor: not-allowed; } .chapter-nav-btn .dir { font-size: 0.7rem; font-family: 'JetBrains Mono', monospace; letter-spacing: 0.12em; color: var(--hb-ink-500); text-transform: uppercase; } .chapter-nav-btn .title { font-weight: 600; font-size: 0.95rem; color: var(--hb-ink-900); } .chapter-nav-btn.next { text-align: right; align-items: flex-end; } @media (max-width: 560px) { .chapter-nav { grid-template-columns: 1fr; } } /* ===== Right: Utility panel ===== */ .hb-utility { position: sticky; top: 90px; max-height: calc(100vh - 110px); overflow-y: auto; scrollbar-width: thin; display: flex; flex-direction: column; gap: 1rem; } .hb-utility::-webkit-scrollbar { width: 6px; } .hb-utility::-webkit-scrollbar-thumb { background: #2a2f40; border-radius: 3px; } .util-card { background: var(--hb-surface-1); border: 1px solid var(--hb-border); border-radius: 12px; padding: 1.1rem 1.15rem; } .util-card-label { font-size: 0.7rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.12em; color: var(--hb-ink-500); margin-bottom: 0.75rem; display: flex; align-items: center; justify-content: space-between; } .util-stat { display: flex; align-items: center; justify-content: space-between; padding: 0.4rem 0; font-size: 0.88rem; } .util-stat + .util-stat { border-top: 1px solid var(--hb-border); } .util-stat .label { color: var(--hb-ink-500); } .util-stat .value { color: var(--hb-ink-900); font-weight: 600; font-family: 'JetBrains Mono', monospace; font-size: 0.82rem; } .util-difficulty { display: inline-flex; align-items: center; gap: 0.3rem; } .util-difficulty .bar { width: 6px; height: 14px; background: rgba(255, 255, 255, 0.08); border-radius: 1px; } .util-difficulty .bar.on { background: linear-gradient(180deg, var(--hb-brand-1), var(--hb-brand-2)); } /* Quick jump list (H2 anchors inside chapter) */ .quick-jump { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 0.15rem; } .quick-jump a { display: block; padding: 0.4rem 0.6rem; color: var(--hb-ink-500); text-decoration: none; font-size: 0.85rem; border-left: 2px solid var(--hb-border); transition: color 0.15s, border-color 0.15s, background 0.15s; } .quick-jump a:hover { color: var(--hb-ink-900); border-left-color: var(--hb-brand-1); } .quick-jump a.active { color: var(--hb-ink-900); border-left-color: var(--hb-brand-1); background: var(--hb-brand-soft); } .hb-overall-progress { display: flex; align-items: center; gap: 0.75rem; } .hb-overall-progress .ring { width: 44px; height: 44px; border-radius: 50%; background: conic-gradient(var(--hb-brand-1) calc(var(--pct, 0) * 1%), rgba(255,255,255,0.08) 0); display: grid; place-items: center; position: relative; flex-shrink: 0; } .hb-overall-progress .ring::before { content: ""; position: absolute; inset: 4px; border-radius: 50%; background: var(--hb-surface-1); } .hb-overall-progress .ring-value { position: relative; z-index: 1; font-family: 'JetBrains Mono', monospace; font-size: 0.72rem; font-weight: 700; color: var(--hb-ink-900); } .hb-overall-progress .label-small { font-size: 0.78rem; color: var(--hb-ink-500); } .hb-overall-progress .label-small strong { display: block; color: var(--hb-ink-900); font-size: 0.9rem; font-weight: 600; } /* Bookmarks list */ .bookmarks-list { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 0.25rem; } .bookmarks-list li a { display: block; padding: 0.4rem 0.55rem; font-size: 0.85rem; color: var(--hb-ink-700); text-decoration: none; border-radius: 6px; transition: background 0.15s, color 0.15s; } .bookmarks-list li a:hover { background: var(--hb-surface-2); color: var(--hb-ink-900); } .bookmarks-list .empty { color: var(--hb-ink-500); font-size: 0.82rem; padding: 0.25rem 0.1rem; font-style: italic; } /* ===== Mobile TOC drawer ===== */ .hb-mobile-toc-btn { display: none; position: fixed; bottom: 1.25rem; left: 50%; transform: translateX(-50%); z-index: 80; padding: 0.7rem 1.15rem; background: linear-gradient(135deg, var(--hb-brand-1), var(--hb-brand-2)); color: #fff; border: none; border-radius: 999px; font-family: inherit; font-size: 0.88rem; font-weight: 600; cursor: pointer; box-shadow: 0 10px 30px -10px rgba(99, 102, 241, 0.8); } .hb-mobile-toc-btn:hover { filter: brightness(1.08); } @media (max-width: 900px) { .hb-mobile-toc-btn { display: inline-flex; align-items: center; gap: 0.4rem; } .hb-toc { display: block; position: fixed; top: 0; left: 0; bottom: 0; width: min(85vw, 320px); background: var(--hb-surface-0); border-right: 1px solid var(--hb-border); padding: 5rem 1rem 2rem 1.25rem; z-index: 90; transform: translateX(-102%); transition: transform 0.3s cubic-bezier(0.2, 0.8, 0.2, 1); max-height: none; } .hb-toc.open { transform: translateX(0); } .hb-toc-backdrop { position: fixed; inset: 0; background: rgba(0,0,0,0.55); z-index: 85; opacity: 0; pointer-events: none; transition: opacity 0.25s; } .hb-toc-backdrop.show { opacity: 1; pointer-events: auto; } } /* ===== Typography & misc ===== */ .handbook-mode .footer { background: transparent; border-top: 1px solid var(--hb-border); }