/* =========================================================== Staff Engineer Academy — design tokens + layout Zero-build CSS. Light/dark via [data-theme] on . =========================================================== */ :root { --bg: #f5f7fb; --bg-elev: #ffffff; --bg-sunken: #eef2f8; --card: #ffffff; --text: #16203a; --text-soft: #46536e; --muted: #6b7893; --line: #dde4ef; --accent: #4f46e5; --accent-soft: #eef0ff; --accent-text: #4338ca; --fe: #0ea5e9; --be: #f97316; --ai: #a855f7; --px: #10b981; --st: #e11d48; --good: #0f766e; --good-bg: #ecfdf5; --warn: #a16207; --warn-bg: #fffbeb; --danger: #b91c1c; --danger-bg: #fef2f2; --code-bg: #0f172a; --code-text: #dbe4f0; --radius: 14px; --radius-sm: 9px; --shadow: 0 1px 2px rgba(16, 32, 58, .05), 0 8px 24px rgba(16, 32, 58, .05); --shadow-lg: 0 20px 50px rgba(16, 32, 58, .14); --header-h: 58px; --maxw: 1560px; } html[data-theme="dark"] { --bg: #0a0e1a; --bg-elev: #111726; --bg-sunken: #0d1320; --card: #121927; --text: #e9edf6; --text-soft: #b6c0d4; --muted: #8492ab; --line: #25304a; --accent: #8b8cf9; --accent-soft: #1c2140; --accent-text: #b4b5ff; --good: #34d399; --good-bg: #0c2a23; --warn: #fbbf24; --warn-bg: #2a2110; --danger: #f87171; --danger-bg: #2b1416; --code-bg: #060a14; --code-text: #cdd8ea; --shadow: 0 1px 2px rgba(0, 0, 0, .4), 0 8px 24px rgba(0, 0, 0, .3); --shadow-lg: 0 20px 50px rgba(0, 0, 0, .55); } * { box-sizing: border-box; } html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; } body { margin: 0; background: var(--bg); color: var(--text); font: 15px/1.7 ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; font-feature-settings: "cv11", "ss01"; } a { color: var(--accent-text); text-decoration: none; } a:hover { text-decoration: underline; } code, pre, kbd { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; } code:not(pre code) { background: var(--bg-sunken); border: 1px solid var(--line); padding: 1px 5px; border-radius: 5px; font-size: .87em; } kbd { background: var(--bg-sunken); border: 1px solid var(--line); border-bottom-width: 2px; border-radius: 5px; padding: 1px 6px; font-size: 11px; color: var(--text-soft); } ::selection { background: var(--accent); color: #fff; } /* ---------------- Skip link + a11y ---------------- */ .skip { position: absolute; left: -9999px; top: 0; z-index: 100; background: var(--accent); color: #fff; padding: 10px 16px; border-radius: 0 0 8px 0; } .skip:focus { left: 0; } .sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; } :focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 4px; } /* ---------------- Header ---------------- */ header.top { position: sticky; top: 0; z-index: 40; background: var(--bg-elev); border-bottom: 1px solid var(--line); } @supports (background: color-mix(in srgb, red 50%, transparent)) { header.top { background: color-mix(in srgb, var(--bg-elev) 88%, transparent); backdrop-filter: saturate(180%) blur(12px); } } .nav { max-width: var(--maxw); margin: auto; height: var(--header-h); padding: 0 18px; display: flex; align-items: center; gap: 14px; } .brand { display: flex; align-items: center; gap: 9px; font-weight: 800; letter-spacing: -.02em; white-space: nowrap; color: var(--text); } .brand:hover { text-decoration: none; } .brand .logo { width: 26px; height: 26px; border-radius: 7px; flex: none; background: linear-gradient(135deg, var(--accent), var(--ai)); display: grid; place-items: center; color: #fff; font-size: 13px; font-weight: 900; } .brand small { display: block; font-size: 10px; font-weight: 600; color: var(--muted); letter-spacing: .04em; text-transform: uppercase; } .nav-links { display: flex; gap: 2px; margin-left: 10px; flex-wrap: wrap; } .nav-links a { padding: 7px 11px; border-radius: 8px; font-size: 13.5px; font-weight: 600; color: var(--text-soft); } .nav-links a:hover { background: var(--bg-sunken); text-decoration: none; color: var(--text); } .nav-links a.on { background: var(--accent-soft); color: var(--accent-text); } .nav-spacer { flex: 1; } .searchbtn { display: flex; align-items: center; gap: 9px; min-width: 230px; background: var(--bg-sunken); border: 1px solid var(--line); color: var(--muted); padding: 7px 10px; border-radius: 9px; cursor: pointer; font: inherit; font-size: 13px; } .searchbtn:hover { border-color: var(--accent); } .searchbtn .grow { flex: 1; text-align: left; } .iconbtn { background: var(--bg-sunken); border: 1px solid var(--line); color: var(--text-soft); width: 34px; height: 34px; border-radius: 9px; cursor: pointer; display: grid; place-items: center; font-size: 15px; flex: none; } .iconbtn:hover { border-color: var(--accent); color: var(--accent-text); } .menubtn { display: none; } /* ---------------- Layout ---------------- */ .layout { max-width: var(--maxw); margin: auto; display: grid; grid-template-columns: 290px minmax(0, 1fr); gap: 34px; padding: 0 18px; } aside.side { position: sticky; top: var(--header-h); height: calc(100vh - var(--header-h)); overflow-y: auto; overscroll-behavior: contain; padding: 20px 8px 60px; scrollbar-width: thin; } aside.side::-webkit-scrollbar { width: 8px; } aside.side::-webkit-scrollbar-thumb { background: var(--line); border-radius: 99px; } .side-group { margin-bottom: 6px; } .side-title { display: flex; align-items: center; gap: 7px; font-size: 10.5px; font-weight: 800; color: var(--muted); text-transform: uppercase; letter-spacing: .07em; padding: 15px 10px 6px; } .side-title .dot { width: 7px; height: 7px; border-radius: 99px; flex: none; } aside.side a { display: flex; align-items: center; gap: 8px; padding: 6px 10px; border-radius: 8px; color: var(--text-soft); font-size: 13.5px; } aside.side a:hover { background: var(--bg-sunken); color: var(--text); text-decoration: none; } aside.side a.on { background: var(--accent-soft); color: var(--accent-text); font-weight: 650; } aside.side a .tick { font-size: 11px; color: var(--good); flex: none; width: 12px; } aside.side a .lbl { flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; } main.main { padding: 26px 0 110px; min-width: 0; } /* ---------------- Generic bits ---------------- */ .card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 22px; margin: 14px 0; } .card > :first-child { margin-top: 0; } .card > :last-child { margin-bottom: 0; } h1 { font-size: 36px; line-height: 1.12; letter-spacing: -.028em; margin: 0 0 12px; } h2 { font-size: 25px; line-height: 1.22; letter-spacing: -.02em; margin: 38px 0 10px; } h3 { font-size: 18.5px; line-height: 1.3; margin: 26px 0 8px; } h4 { font-size: 15px; margin: 18px 0 6px; color: var(--text-soft); } p { margin: 10px 0; } .lead { font-size: 16.5px; color: var(--text-soft); line-height: 1.65; } .muted { color: var(--muted); } .small { font-size: 13px; } ul, ol { margin: 10px 0; padding-left: 22px; } li { margin: 5px 0; } hr { border: 0; border-top: 1px solid var(--line); margin: 28px 0; } .hidden { display: none !important; } .row { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; } .between { display: flex; align-items: center; justify-content: space-between; gap: 14px; flex-wrap: wrap; } .btn { display: inline-flex; align-items: center; gap: 7px; background: var(--accent); color: #fff; border: 1px solid transparent; padding: 9px 16px; border-radius: 9px; font: inherit; font-size: 13.5px; font-weight: 650; cursor: pointer; } .btn:hover { filter: brightness(1.08); text-decoration: none; color: #fff; } .btn.ghost { background: var(--bg-elev); color: var(--text); border-color: var(--line); } .btn.ghost:hover { border-color: var(--accent); color: var(--accent-text); filter: none; } .btn.sm { padding: 6px 11px; font-size: 12.5px; } .btn:disabled { opacity: .45; cursor: not-allowed; filter: none; } .pill { display: inline-flex; align-items: center; gap: 5px; font-size: 11px; font-weight: 700; padding: 3px 9px; border-radius: 99px; background: var(--accent-soft); color: var(--accent-text); letter-spacing: .01em; } .pill.fe { background: color-mix(in srgb, var(--fe) 15%, transparent); color: var(--fe); } .pill.be { background: color-mix(in srgb, var(--be) 15%, transparent); color: var(--be); } .pill.ai { background: color-mix(in srgb, var(--ai) 15%, transparent); color: var(--ai); } .pill.px { background: color-mix(in srgb, var(--px) 15%, transparent); color: var(--px); } .pill.st { background: color-mix(in srgb, var(--st) 15%, transparent); color: var(--st); } .pill.plain { background: var(--bg-sunken); color: var(--muted); } .tags { display: flex; gap: 6px; flex-wrap: wrap; } .tag { font-size: 11px; padding: 2px 8px; border-radius: 99px; background: var(--bg-sunken); border: 1px solid var(--line); color: var(--muted); } /* ---------------- Tables ---------------- */ .tablewrap { overflow-x: auto; margin: 14px 0; border: 1px solid var(--line); border-radius: var(--radius-sm); } table { width: 100%; border-collapse: collapse; font-size: 14px; } th, td { padding: 10px 13px; text-align: left; vertical-align: top; border-bottom: 1px solid var(--line); } th { background: var(--bg-sunken); font-size: 12px; font-weight: 750; text-transform: uppercase; letter-spacing: .04em; color: var(--text-soft); white-space: nowrap; } tr:last-child td { border-bottom: 0; } tbody tr:hover td { background: color-mix(in srgb, var(--accent-soft) 45%, transparent); } /* ---------------- Code + diagrams ---------------- */ pre { background: var(--code-bg); color: var(--code-text); padding: 16px; border-radius: var(--radius-sm); overflow-x: auto; font-size: 12.8px; line-height: 1.6; margin: 12px 0; border: 1px solid var(--line); } pre code { background: none; border: 0; padding: 0; font-size: inherit; color: inherit; } .codeblock { position: relative; } .codeblock .lang { position: absolute; top: 8px; right: 10px; font-size: 10.5px; color: #7c8ba5; text-transform: uppercase; letter-spacing: .06em; font-weight: 700; pointer-events: none; } .diagram { background: var(--bg-elev); border: 1px solid var(--line); border-radius: var(--radius-sm); padding: 14px; margin: 14px 0; overflow-x: auto; text-align: center; min-height: 60px; } .diagram svg { max-width: 100%; height: auto; } .diagram .loadingdiag { color: var(--muted); font-size: 13px; padding: 24px; } /* ---------------- Notes ---------------- */ .note { padding: 13px 16px; margin: 14px 0; border-radius: 0 var(--radius-sm) var(--radius-sm) 0; background: var(--accent-soft); border-left: 3px solid var(--accent); color: var(--text); } .note > :first-child { margin-top: 0; } .note > :last-child { margin-bottom: 0; } .note .nt { display: block; font-weight: 750; font-size: 12px; text-transform: uppercase; letter-spacing: .05em; margin-bottom: 5px; color: var(--accent-text); } .note.good { background: var(--good-bg); border-left-color: var(--good); } .note.good .nt { color: var(--good); } .note.warn { background: var(--warn-bg); border-left-color: var(--warn); } .note.warn .nt { color: var(--warn); } .note.danger { background: var(--danger-bg); border-left-color: var(--danger); } .note.danger .nt { color: var(--danger); } /* ---------------- Grids ---------------- */ .grid { display: grid; gap: 13px; margin: 14px 0; } .grid.c2 { grid-template-columns: repeat(2, minmax(0, 1fr)); } .grid.c3 { grid-template-columns: repeat(3, minmax(0, 1fr)); } .grid.c4 { grid-template-columns: repeat(4, minmax(0, 1fr)); } .mini { background: var(--bg-elev); border: 1px solid var(--line); border-radius: var(--radius-sm); padding: 15px; } .mini > b { display: block; margin-bottom: 5px; font-size: 14px; } .mini > p { margin: 0; font-size: 13.5px; color: var(--text-soft); } .mini ul, .mini ol { font-size: 13.5px; color: var(--text-soft); } /* ---------------- Trade-offs / failures ---------------- */ .tradeoffs { display: grid; grid-template-columns: 1fr 1fr; gap: 13px; margin: 14px 0; } .tocol { border: 1px solid var(--line); border-radius: var(--radius-sm); padding: 14px; background: var(--bg-elev); } .tocol h5 { margin: 0 0 8px; font-size: 12px; text-transform: uppercase; letter-spacing: .05em; } .tocol.gain { border-left: 3px solid var(--good); } .tocol.gain h5 { color: var(--good); } .tocol.cost { border-left: 3px solid var(--warn); } .tocol.cost h5 { color: var(--warn); } .tocol ul { margin: 0; padding-left: 18px; font-size: 13.5px; } /* ---------------- Details ---------------- */ details.dd { background: var(--bg-elev); border: 1px solid var(--line); border-radius: var(--radius-sm); padding: 0; margin: 12px 0; overflow: hidden; } details.dd > summary { cursor: pointer; font-weight: 680; padding: 12px 15px; font-size: 14.5px; list-style: none; display: flex; align-items: center; gap: 9px; } details.dd > summary::-webkit-details-marker { display: none; } details.dd > summary::before { content: "▸"; color: var(--muted); font-size: 12px; transition: transform .15s; } details.dd[open] > summary::before { transform: rotate(90deg); } details.dd[open] > summary { border-bottom: 1px solid var(--line); background: var(--bg-sunken); } .dd-body { padding: 4px 15px 14px; } /* ---------------- Quiz ---------------- */ .quiz { background: var(--bg-elev); border: 1px solid var(--line); border-radius: var(--radius-sm); padding: 16px; margin: 14px 0; } .quiz .qq { font-weight: 680; margin: 0 0 10px; } .quiz + .quiz { margin-top: 10px; } .opts { display: grid; gap: 7px; } .opt { display: flex; gap: 9px; align-items: flex-start; text-align: left; width: 100%; background: var(--card); border: 1px solid var(--line); border-radius: 8px; padding: 9px 12px; cursor: pointer; font: inherit; font-size: 13.8px; color: var(--text); } .opt:hover:not(:disabled) { border-color: var(--accent); } .opt .ol { font-weight: 800; color: var(--muted); flex: none; width: 14px; } .opt.right { border-color: var(--good); background: var(--good-bg); } .opt.right .ol { color: var(--good); } .opt.wrong { border-color: var(--danger); background: var(--danger-bg); } .opt.wrong .ol { color: var(--danger); } .opt:disabled { cursor: default; } .why { margin-top: 10px; font-size: 13.5px; color: var(--text-soft); padding: 10px 13px; background: var(--bg-sunken); border-radius: 8px; } /* ---------------- Progress bars ---------------- */ .bar { height: 6px; border-radius: 99px; background: var(--bg-sunken); overflow: hidden; } .bar > i { display: block; height: 100%; background: var(--accent); border-radius: 99px; transition: width .3s; } .bar.fe > i { background: var(--fe); } .bar.be > i { background: var(--be); } .bar.ai > i { background: var(--ai); } .bar.px > i { background: var(--px); } .bar.st > i { background: var(--st); } .ring { --v: 0; width: 46px; height: 46px; flex: none; border-radius: 99px; background: conic-gradient(var(--accent) calc(var(--v) * 1%), var(--bg-sunken) 0); display: grid; place-items: center; position: relative; } .ring::after { content: attr(data-pct); position: absolute; inset: 4px; border-radius: 99px; background: var(--card); display: grid; place-items: center; font-size: 11px; font-weight: 800; } /* ---------------- Hero ---------------- */ .hero { position: relative; overflow: hidden; background: linear-gradient(135deg, #10152b 0%, #272a79 55%, #3b2a86 100%); color: #fff; border-radius: 20px; padding: 42px; margin-bottom: 8px; } .hero::after { content: ""; position: absolute; right: -80px; top: -120px; width: 420px; height: 420px; background: radial-gradient(circle, rgba(168, 85, 247, .45), transparent 62%); } .hero > * { position: relative; z-index: 1; } .hero h1 { font-size: 41px; margin: 0 0 14px; letter-spacing: -.032em; } .hero p { font-size: 16.5px; max-width: 760px; color: #d7dcf3; } .hero .tags .tag { background: rgba(255, 255, 255, .12); border-color: rgba(255, 255, 255, .2); color: #e5e9fb; } .hero .btn.ghost { background: rgba(255, 255, 255, .14); color: #fff; border-color: rgba(255, 255, 255, .26); } .hero .btn.ghost:hover { background: rgba(255, 255, 255, .22); color: #fff; } /* ---------------- Track / topic cards ---------------- */ .trackcards { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 14px; margin: 22px 0; } .trackcard { display: block; background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 19px; color: var(--text); position: relative; overflow: hidden; } .trackcard:hover { text-decoration: none; border-color: var(--accent); transform: translateY(-2px); box-shadow: var(--shadow); } .trackcard { transition: transform .15s, box-shadow .15s, border-color .15s; } .trackcard::before { content: ""; position: absolute; inset: 0 0 auto; height: 3px; background: var(--accent); } .trackcard.fe::before { background: var(--fe); } .trackcard.be::before { background: var(--be); } .trackcard.ai::before { background: var(--ai); } .trackcard.px::before { background: var(--px); } .trackcard.st::before { background: var(--st); } .trackcard h3 { margin: 0 0 6px; font-size: 17px; } .trackcard p { font-size: 13.5px; color: var(--text-soft); margin: 0 0 14px; min-height: 42px; } .topiclist { display: grid; gap: 10px; margin: 16px 0; } .topicrow { display: flex; align-items: center; gap: 14px; background: var(--card); border: 1px solid var(--line); border-radius: var(--radius-sm); padding: 14px 16px; color: var(--text); } .topicrow:hover { text-decoration: none; border-color: var(--accent); box-shadow: var(--shadow); } .topicrow .num { width: 28px; height: 28px; border-radius: 8px; flex: none; display: grid; place-items: center; background: var(--bg-sunken); color: var(--muted); font-size: 12px; font-weight: 800; } .topicrow.done .num { background: var(--good-bg); color: var(--good); } .topicrow .body { flex: 1; min-width: 0; } .topicrow .body b { display: block; font-size: 15px; font-weight: 680; } .topicrow .body p { margin: 3px 0 0; font-size: 13px; color: var(--muted); } .topicrow .meta { flex: none; display: flex; align-items: center; gap: 8px; } /* ---------------- Topic page ---------------- */ .crumbs { font-size: 12.5px; color: var(--muted); margin-bottom: 12px; display: flex; gap: 7px; align-items: center; } .topic-head { border-bottom: 1px solid var(--line); padding-bottom: 20px; margin-bottom: 6px; } .topic-foot { display: flex; gap: 12px; justify-content: space-between; align-items: stretch; margin-top: 44px; padding-top: 24px; border-top: 1px solid var(--line); } .navcard { flex: 1; background: var(--card); border: 1px solid var(--line); border-radius: var(--radius-sm); padding: 14px 16px; color: var(--text); max-width: 46%; } .navcard:hover { text-decoration: none; border-color: var(--accent); } .navcard span { display: block; font-size: 11px; text-transform: uppercase; letter-spacing: .06em; color: var(--muted); font-weight: 700; margin-bottom: 4px; } .navcard b { font-weight: 680; } .navcard.next { text-align: right; margin-left: auto; } .onthispage { position: sticky; top: calc(var(--header-h) + 20px); align-self: start; font-size: 13px; } .blocks h2:first-of-type { margin-top: 24px; } /* ---------------- Drills ---------------- */ .drill { background: var(--card); border: 1px solid var(--line); border-left: 3px solid var(--ai); border-radius: var(--radius-sm); padding: 16px; margin: 12px 0; } .drill .dq { font-weight: 680; margin: 0 0 8px; } .drill .lvls { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-top: 10px; font-size: 13.5px; } .drill .lvls ul { padding-left: 18px; margin: 4px 0; } .drill .lvls b { font-size: 11.5px; text-transform: uppercase; letter-spacing: .05em; } .drill .lvls .s b { color: var(--good); } .drill .lvls .w b { color: var(--danger); } /* ---------------- Command palette / search ---------------- */ .scrim { position: fixed; inset: 0; z-index: 60; background: rgba(9, 13, 26, .55); backdrop-filter: blur(3px); display: flex; align-items: flex-start; justify-content: center; padding: 10vh 16px 16px; } .palette { width: 100%; max-width: 660px; background: var(--bg-elev); border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow-lg); overflow: hidden; display: flex; flex-direction: column; max-height: 72vh; } .palette input { border: 0; border-bottom: 1px solid var(--line); background: none; color: var(--text); padding: 16px 18px; font: inherit; font-size: 16px; outline: none; width: 100%; } .palette .results { overflow-y: auto; padding: 8px; } .pres { display: flex; gap: 12px; align-items: center; width: 100%; text-align: left; background: none; border: 0; border-radius: 8px; padding: 10px 12px; cursor: pointer; color: var(--text); font: inherit; } .pres:hover, .pres.sel { background: var(--accent-soft); } .pres .pbody { flex: 1; min-width: 0; } .pres .pbody b { display: block; font-size: 14px; font-weight: 650; } .pres .pbody span { display: block; font-size: 12.5px; color: var(--muted); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; } .pres mark { background: color-mix(in srgb, var(--accent) 28%, transparent); color: inherit; border-radius: 3px; padding: 0 2px; } .palette .foot { border-top: 1px solid var(--line); padding: 9px 16px; font-size: 11.5px; color: var(--muted); display: flex; gap: 14px; background: var(--bg-sunken); } .empty { padding: 34px; text-align: center; color: var(--muted); font-size: 14px; } /* ---------------- Practice: bank ---------------- */ .filters { display: flex; gap: 8px; flex-wrap: wrap; margin: 16px 0; } .chip { background: var(--bg-elev); border: 1px solid var(--line); color: var(--text-soft); padding: 6px 12px; border-radius: 99px; font: inherit; font-size: 12.5px; font-weight: 600; cursor: pointer; } .chip:hover { border-color: var(--accent); } .chip.on { background: var(--accent); border-color: var(--accent); color: #fff; } .qrow { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius-sm); padding: 0; margin: 9px 0; overflow: hidden; } .qrow > .qhead { display: flex; align-items: center; gap: 13px; padding: 14px 16px; cursor: pointer; width: 100%; background: none; border: 0; font: inherit; color: var(--text); text-align: left; } .qrow > .qhead:hover { background: var(--bg-sunken); } .qrow .qn { font-size: 12px; font-weight: 800; color: var(--muted); width: 26px; flex: none; } .qrow .qt { flex: 1; font-weight: 650; font-size: 14.5px; min-width: 0; } .qrow .qbody { padding: 4px 16px 18px 55px; border-top: 1px solid var(--line); } .qrow .qbody h5 { margin: 16px 0 6px; font-size: 12px; text-transform: uppercase; letter-spacing: .05em; color: var(--accent-text); } .qrow .qbody ul { font-size: 13.8px; } /* ---------------- Practice: mock interview ---------------- */ .mockgrid { display: grid; grid-template-columns: minmax(0, 1fr) 320px; gap: 20px; align-items: start; } .timer { font-family: ui-monospace, monospace; font-size: 30px; font-weight: 700; letter-spacing: -.02em; font-variant-numeric: tabular-nums; } .timer.over { color: var(--danger); } .phase { display: flex; gap: 10px; align-items: center; padding: 11px 13px; border-radius: var(--radius-sm); border: 1px solid var(--line); background: var(--bg-elev); margin: 7px 0; font-size: 13.5px; } .phase.on { border-color: var(--accent); background: var(--accent-soft); } .phase.past { opacity: .55; } .phase .pn { width: 22px; height: 22px; border-radius: 99px; background: var(--bg-sunken); color: var(--muted); display: grid; place-items: center; font-size: 11px; font-weight: 800; flex: none; } .phase.on .pn { background: var(--accent); color: #fff; } .phase .pb { flex: 1; } .phase .pb b { display: block; } .phase .pb span { font-size: 11.5px; color: var(--muted); } textarea.pad { width: 100%; min-height: 340px; resize: vertical; padding: 15px; background: var(--card); color: var(--text); border: 1px solid var(--line); border-radius: var(--radius-sm); font: inherit; font-size: 14.5px; line-height: 1.7; } textarea.pad:focus { outline: none; border-color: var(--accent); } .rubric { display: grid; gap: 8px; } .rubitem { display: flex; gap: 10px; align-items: flex-start; font-size: 13.5px; } .rubitem input { margin-top: 5px; flex: none; } /* ---------------- Practice: flashcards ---------------- */ .fcwrap { max-width: 720px; margin: 0 auto; } .fc { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); min-height: 260px; padding: 34px; display: flex; flex-direction: column; justify-content: center; align-items: center; text-align: center; cursor: pointer; box-shadow: var(--shadow); } .fc .fq { font-size: 21px; font-weight: 650; line-height: 1.4; } .fc .fa { margin-top: 20px; padding-top: 20px; border-top: 1px solid var(--line); width: 100%; font-size: 15.5px; color: var(--text-soft); line-height: 1.7; text-align: left; } .fc .hintflip { margin-top: 22px; font-size: 12px; color: var(--muted); } .grades { display: grid; grid-template-columns: repeat(4, 1fr); gap: 9px; margin-top: 16px; } .grade { padding: 11px; border-radius: var(--radius-sm); border: 1px solid var(--line); background: var(--bg-elev); cursor: pointer; font: inherit; font-size: 13px; font-weight: 650; color: var(--text); } .grade:hover { border-color: var(--accent); } .grade span { display: block; font-size: 10.5px; font-weight: 600; color: var(--muted); margin-top: 2px; } .grade.g0:hover { border-color: var(--danger); } .grade.g3:hover { border-color: var(--good); } /* ---------------- Stats ---------------- */ .statgrid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 13px; margin: 18px 0; } .stat { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 18px; } .stat .v { font-size: 30px; font-weight: 800; letter-spacing: -.03em; line-height: 1.1; } .stat .k { font-size: 12px; color: var(--muted); text-transform: uppercase; letter-spacing: .05em; font-weight: 700; margin-top: 4px; } footer.bot { max-width: var(--maxw); margin: auto; padding: 30px 18px 50px; border-top: 1px solid var(--line); color: var(--muted); font-size: 13px; display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; } /* ---------------- Responsive ---------------- */ @media (max-width: 1180px) { .trackcards { grid-template-columns: repeat(2, minmax(0, 1fr)); } .statgrid { grid-template-columns: repeat(2, minmax(0, 1fr)); } .mockgrid { grid-template-columns: 1fr; } } @media (max-width: 960px) { .layout { grid-template-columns: 1fr; } aside.side { position: fixed; top: var(--header-h); left: 0; bottom: 0; width: 290px; z-index: 45; background: var(--bg-elev); border-right: 1px solid var(--line); transform: translateX(-102%); transition: transform .2s ease; height: auto; } body.sidenav aside.side { transform: none; box-shadow: var(--shadow-lg); } .menubtn { display: grid; } .nav-links { display: none; } .searchbtn { min-width: 0; } .searchbtn .grow, .searchbtn kbd { display: none; } .grid.c3, .grid.c4 { grid-template-columns: repeat(2, minmax(0, 1fr)); } .hero { padding: 30px; } .hero h1 { font-size: 32px; } h1 { font-size: 29px; } } @media (max-width: 620px) { .grid.c2, .grid.c3, .grid.c4, .tradeoffs, .drill .lvls, .trackcards, .statgrid { grid-template-columns: 1fr; } .grades { grid-template-columns: repeat(2, 1fr); } .navcard { max-width: none; } .topic-foot { flex-direction: column; } .qrow .qbody { padding-left: 16px; } .brand small { display: none; } } @media print { header.top, aside.side, .topic-foot, footer.bot, .scrim { display: none !important; } .layout { grid-template-columns: 1fr; } body { background: #fff; } .card, .diagram { break-inside: avoid; } } @media (prefers-reduced-motion: reduce) { * { transition: none !important; animation: none !important; scroll-behavior: auto !important; } }