/* ============================================================ Look What I Found — Engineering Digest Shared styles. Dark + light themes via [data-theme] on . ============================================================ */ /* ---- Theme tokens ---- */ :root, :root[data-theme="light"] { --bg: #f6f5f1; --bg-elev: #ffffff; --bg-sunken: #eeece6; --border: #e0ddd4; --border-strong: #cfcbbf; --text: #23211c; --text-soft: #55524a; --text-dim: #85817650; --text-muted: #7c7869; --accent: #b5451c; --accent-soft: #f2e3dc; --accent-hover: #953714; --link: #9c4a1c; --tag-bg: #ecebe5; --tag-text: #55524a; --shadow: 0 1px 2px rgba(30, 25, 15, 0.05), 0 6px 18px rgba(30, 25, 15, 0.06); --shadow-hover: 0 2px 6px rgba(30, 25, 15, 0.08), 0 14px 34px rgba(30, 25, 15, 0.12); color-scheme: light; } :root[data-theme="dark"] { --bg: #0e1016; --bg-elev: #171a22; --bg-sunken: #10131a; --border: #262a34; --border-strong: #333947; --text: #e8eaef; --text-soft: #b6bcc8; --text-dim: #ffffff10; --text-muted: #838b9b; --accent: #ff8a5b; --accent-soft: #2a1f1a; --accent-hover: #ffa878; --link: #7fb2ff; --tag-bg: #1e222c; --tag-text: #b6bcc8; --shadow: 0 1px 2px rgba(0, 0, 0, 0.4), 0 8px 24px rgba(0, 0, 0, 0.3); --shadow-hover: 0 2px 8px rgba(0, 0, 0, 0.5), 0 18px 40px rgba(0, 0, 0, 0.45); color-scheme: dark; } /* System preference default when user has not chosen */ @media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) { --bg: #0e1016; --bg-elev: #171a22; --bg-sunken: #10131a; --border: #262a34; --border-strong: #333947; --text: #e8eaef; --text-soft: #b6bcc8; --text-dim: #ffffff10; --text-muted: #838b9b; --accent: #ff8a5b; --accent-soft: #2a1f1a; --accent-hover: #ffa878; --link: #7fb2ff; --tag-bg: #1e222c; --tag-text: #b6bcc8; --shadow: 0 1px 2px rgba(0, 0, 0, 0.4), 0 8px 24px rgba(0, 0, 0, 0.3); --shadow-hover: 0 2px 8px rgba(0, 0, 0, 0.5), 0 18px 40px rgba(0, 0, 0, 0.45); color-scheme: dark; } } * { box-sizing: border-box; } html { scroll-behavior: smooth; } body { margin: 0; font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif; background: var(--bg); color: var(--text); line-height: 1.6; -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility; } a { color: var(--link); } /* ============================================================ Top bar (shared across all pages) ============================================================ */ .topbar { position: sticky; top: 0; z-index: 50; display: flex; align-items: center; gap: 20px; padding: 0 clamp(16px, 4vw, 40px); height: 60px; background: color-mix(in srgb, var(--bg) 82%, transparent); backdrop-filter: saturate(160%) blur(12px); border-bottom: 1px solid var(--border); } .brand { display: flex; align-items: center; gap: 10px; font-weight: 700; letter-spacing: -0.01em; color: var(--text); text-decoration: none; font-size: 0.98rem; white-space: nowrap; } .brand .mark { display: inline-grid; place-items: center; width: 26px; height: 26px; border-radius: 7px; background: var(--accent); color: #fff; font-size: 0.9rem; font-weight: 800; } .topnav { display: flex; gap: 4px; margin-left: 8px; } .topnav a { padding: 7px 13px; border-radius: 8px; font-size: 0.87rem; font-weight: 500; text-decoration: none; color: var(--text-soft); transition: background 0.15s, color 0.15s; } .topnav a:hover { background: var(--bg-sunken); color: var(--text); } .topnav a.current { background: var(--accent-soft); color: var(--accent); font-weight: 600; } .topbar .spacer { flex: 1; } .theme-toggle { display: inline-grid; place-items: center; width: 38px; height: 38px; border-radius: 10px; border: 1px solid var(--border-strong); background: var(--bg-elev); color: var(--text-soft); cursor: pointer; transition: color 0.15s, border-color 0.15s, background 0.15s; } .theme-toggle:hover { color: var(--accent); border-color: var(--accent); } .theme-toggle svg { width: 18px; height: 18px; } .theme-toggle .icon-sun { display: none; } .theme-toggle .icon-moon { display: block; } :root[data-theme="dark"] .theme-toggle .icon-sun { display: block; } :root[data-theme="dark"] .theme-toggle .icon-moon { display: none; } @media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) .theme-toggle .icon-sun { display: block; } :root:not([data-theme="light"]) .theme-toggle .icon-moon { display: none; } } /* ============================================================ Page header / hero ============================================================ */ header.site { border-bottom: 1px solid var(--border); background: radial-gradient(1200px 320px at 15% -40%, var(--accent-soft), transparent 60%), var(--bg); } .site-inner { max-width: 1100px; margin: 0 auto; padding: clamp(40px, 7vw, 72px) clamp(16px, 4vw, 40px) clamp(28px, 4vw, 44px); } .eyebrow { margin: 0 0 12px; font-size: 0.78rem; font-weight: 600; letter-spacing: 0.14em; text-transform: uppercase; color: var(--accent); } header.site h1 { font-family: "Newsreader", Georgia, serif; font-weight: 600; font-size: clamp(2.1rem, 5.5vw, 3.4rem); line-height: 1.05; letter-spacing: -0.02em; margin: 0 0 18px; color: var(--text); } .lede { color: var(--text-soft); max-width: 60ch; margin: 0; font-size: clamp(1rem, 1.6vw, 1.12rem); } /* Section tabs (links between the two channel pages) */ nav.tabs { display: flex; gap: 10px; margin-top: 28px; flex-wrap: wrap; } nav.tabs button, nav.tabs a.tab-btn { background: var(--bg-elev); border: 1px solid var(--border-strong); color: var(--text-soft); padding: 10px 18px; border-radius: 999px; cursor: pointer; font-size: 0.9rem; font-weight: 500; text-decoration: none; transition: border-color 0.15s, color 0.15s, background 0.15s; } nav.tabs button:hover, nav.tabs a.tab-btn:hover { border-color: var(--accent); color: var(--text); } nav.tabs button.active, nav.tabs a.tab-btn.active { background: var(--accent); color: #fff; border-color: var(--accent); font-weight: 600; } /* Search box */ .search-wrap { position: relative; margin-top: 24px; max-width: 460px; } .search-wrap input[type="search"] { width: 100%; padding: 12px 16px; font-size: 0.95rem; font-family: inherit; color: var(--text); background: var(--bg-elev); border: 1px solid var(--border-strong); border-radius: 12px; outline: none; transition: border-color 0.15s, box-shadow 0.15s; } .search-wrap input[type="search"]::placeholder { color: var(--text-muted); } .search-wrap input[type="search"]:focus { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); } .search-hint { display: block; margin-top: 8px; font-size: 0.8rem; color: var(--text-muted); min-height: 1em; } /* ============================================================ Layout: sidebar TOC + content ============================================================ */ main { max-width: 1100px; margin: 0 auto; padding: 0 clamp(16px, 4vw, 40px) 96px; } .layout { display: grid; grid-template-columns: 240px 1fr; gap: clamp(28px, 4vw, 56px); align-items: start; padding-top: 40px; } .sidebar { position: sticky; top: 84px; align-self: start; } .panel-intro { color: var(--text-muted); font-size: 0.9rem; margin: 0 0 18px; line-height: 1.55; } nav.toc { display: flex; flex-direction: column; gap: 2px; border-left: 1px solid var(--border); padding-left: 2px; } nav.toc a { font-size: 0.86rem; color: var(--text-soft); text-decoration: none; padding: 6px 12px; border-radius: 0 8px 8px 0; border-left: 2px solid transparent; margin-left: -1px; transition: color 0.15s, background 0.15s, border-color 0.15s; } nav.toc a:hover { color: var(--text); background: var(--bg-sunken); } nav.toc a.active { color: var(--accent); border-left-color: var(--accent); background: var(--accent-soft); font-weight: 600; } .content { min-width: 0; } /* ============================================================ Categories & items ============================================================ */ section.category { margin-bottom: 52px; scroll-margin-top: 84px; } section.category > h2 { font-family: "Newsreader", Georgia, serif; font-size: 1.5rem; font-weight: 600; letter-spacing: -0.01em; margin: 0 0 6px; padding-bottom: 12px; border-bottom: 1px solid var(--border); color: var(--text); display: flex; align-items: baseline; gap: 12px; } section.category > h2::before { content: ""; width: 8px; height: 8px; border-radius: 2px; background: var(--accent); flex: none; transform: translateY(-2px); } section.category .cat-desc { color: var(--text-muted); font-size: 0.9rem; margin: 0 0 18px; } .item { background: var(--bg-elev); border: 1px solid var(--border); border-radius: 14px; padding: 18px 20px; margin-bottom: 14px; box-shadow: var(--shadow); transition: transform 0.16s ease, box-shadow 0.16s ease, border-color 0.16s ease; } .item:hover { transform: translateY(-2px); box-shadow: var(--shadow-hover); border-color: var(--border-strong); } .item > p { margin: 0; font-size: 0.97rem; color: var(--text); max-width: 72ch; } .item .links { display: flex; flex-wrap: wrap; gap: 8px 10px; margin-top: 14px; } .item .links a { display: inline-flex; align-items: center; gap: 6px; font-size: 0.8rem; font-weight: 500; color: var(--link); background: var(--tag-bg); padding: 5px 11px; border-radius: 8px; text-decoration: none; max-width: 100%; transition: background 0.15s, color 0.15s, transform 0.15s; } .item .links a::before { content: "↗"; font-size: 0.72rem; opacity: 0.6; } .item .links a:hover { color: #fff; background: var(--accent); transform: translateY(-1px); } .item .links a:hover::before { opacity: 0.9; } /* Q&A items (System Design Discussions) */ .item.qa .q { margin: 0; font-weight: 600; font-size: 0.98rem; color: var(--text); } .item.qa .a { margin: 12px 0 0; color: var(--text-soft); padding-left: 16px; border-left: 2px solid var(--accent-soft); font-size: 0.94rem; } /* Search no-results state */ .no-results { display: none; padding: 40px 4px; color: var(--text-muted); font-size: 0.95rem; } .no-results.show { display: block; } /* ============================================================ Home page cards ============================================================ */ .home-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 20px; padding-top: 48px; } .home-card { display: flex; flex-direction: column; background: var(--bg-elev); border: 1px solid var(--border); border-radius: 18px; padding: 28px; text-decoration: none; color: inherit; box-shadow: var(--shadow); transition: transform 0.18s ease, box-shadow 0.18s ease, border-color 0.18s ease; } .home-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); border-color: var(--accent); } .home-card .kicker { font-size: 0.75rem; font-weight: 600; letter-spacing: 0.1em; text-transform: uppercase; color: var(--accent); margin: 0 0 10px; } .home-card h3 { font-family: "Newsreader", Georgia, serif; font-size: 1.5rem; font-weight: 600; margin: 0 0 10px; color: var(--text); } .home-card p { margin: 0 0 20px; color: var(--text-soft); font-size: 0.95rem; } .home-card .tags { display: flex; flex-wrap: wrap; gap: 6px; margin-top: auto; } .home-card .tags span { font-size: 0.74rem; color: var(--tag-text); background: var(--tag-bg); padding: 4px 9px; border-radius: 6px; } .home-card .go { margin-top: 18px; font-size: 0.85rem; font-weight: 600; color: var(--accent); } .stat-row { display: flex; flex-wrap: wrap; gap: 40px; padding-top: 44px; border-top: 1px solid var(--border); margin-top: 52px; } .stat-row .stat b { display: block; font-family: "Newsreader", Georgia, serif; font-size: 2rem; font-weight: 600; color: var(--text); line-height: 1; } .stat-row .stat span { font-size: 0.85rem; color: var(--text-muted); } /* ============================================================ Footer ============================================================ */ footer.site { border-top: 1px solid var(--border); color: var(--text-muted); font-size: 0.82rem; padding: 32px clamp(16px, 4vw, 40px); } footer.site .footer-inner { max-width: 1100px; margin: 0 auto; display: flex; flex-wrap: wrap; gap: 12px 28px; align-items: center; justify-content: space-between; } footer.site a { color: var(--text-soft); } /* ============================================================ Responsive ============================================================ */ @media (max-width: 860px) { .layout { grid-template-columns: 1fr; } .sidebar { position: static; top: auto; } nav.toc { flex-direction: row; flex-wrap: wrap; border-left: none; padding-left: 0; gap: 8px; } nav.toc a { border: 1px solid var(--border-strong); border-radius: 999px; margin-left: 0; padding: 6px 13px; font-size: 0.8rem; } nav.toc a.active { border-color: var(--accent); } .topnav { display: none; } } @media (max-width: 520px) { .topbar { gap: 10px; height: 56px; } .brand span.brand-text { display: none; } }