/* ========================================================================== AeroLab — landing page stylesheet (merged dark + light) Two themes, one sheet: all colors are custom properties, forked by the data-theme attribute on . Dark = instrument-panel (default), light = engineering drawing. One accent (sky), hairlines, monospace digits. System fonts only — no webfonts, no dependencies. ========================================================================== */ :root { /* dark theme (default) — panel + ink */ color-scheme: dark; --paper: #020617; --plate: #0f172a; --ink: #f1f5f9; --ink-2: #e2e8f0; --ink-3: #cbd5e1; --faint: #94a3b8; --hair: #1e293b; --hair-2: #334155; /* the one accent — sky. Text shades pass AA on the dark panel. */ --accent: #0ea5e9; /* graphics + primary button */ --accent-text: #38bdf8; /* links, accent text — 8.4:1 on #020617 */ --accent-deep: #7dd3fc; /* hover */ --accent-wash: #082f49; /* faint fill */ /* component forks */ --sel-bg: #075985; --sel-ink: #f1f5f9; --btn-bg: #0ea5e9; --btn-ink: #041324; --btn-bg-hover: #38bdf8; --shadow-card: 0 20px 44px -20px rgb(0 0 0 / 0.55); --shadow-win: 0 18px 48px -24px rgba(0, 0, 0, 0.55); --stripe-a: #0d1728; --stripe-b: #0a111f; --shot-bg: #0a111f; --pill-now-ink: #7dd3fc; --pill-now-border: #075985; --pill-soon-bg: #1e293b; --pill-soon-border: #334155; --fig-grid: #141f38; --fig-axis: #475569; --fig-track: #334155; --sans: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif; --mono: ui-monospace, "SF Mono", SFMono-Regular, Menlo, Consolas, monospace; --wrap: 1160px; --wrap-wide: 1400px; } :root[data-theme="light"] { /* light theme — paper + ink */ color-scheme: light; --paper: #f8fafc; --plate: #ffffff; --ink: #0f172a; --ink-2: #334155; --ink-3: #475569; --faint: #64748b; --hair: #e2e8f0; --hair-2: #cbd5e1; /* accent text shades pass AA on white */ --accent-text: #0369a1; --accent-deep: #075985; --accent-wash: #f0f9ff; --sel-bg: #bae6fd; --sel-ink: #0f172a; --btn-bg: #0369a1; --btn-ink: #ffffff; --btn-bg-hover: #075985; --shadow-card: 0 1px 2px rgb(15 23 42 / 0.04), 0 12px 32px -16px rgb(15 23 42 / 0.12); --shadow-win: 0 18px 48px -24px rgba(15, 23, 42, 0.25); --stripe-a: #f1f5f9; --stripe-b: #f8fafc; --shot-bg: #f8fafc; --pill-now-ink: #0369a1; --pill-now-border: #bae6fd; --pill-soon-bg: #f1f5f9; --pill-soon-border: #e2e8f0; --fig-grid: #eef2f7; --fig-axis: #cbd5e1; --fig-track: #cbd5e1; } /* theme-dependent content (e.g. the app screenshot per theme) */ :root[data-theme="dark"] .theme-light-only { display: none; } :root[data-theme="light"] .theme-dark-only { display: none; } /* ---- base ---------------------------------------------------------------- */ * { box-sizing: border-box; } html { scroll-behavior: smooth; scroll-padding-top: 5rem; } body { margin: 0; background: var(--paper); color: var(--ink); font-family: var(--sans); font-size: 17px; line-height: 1.6; -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility; } h1, h2, h3 { line-height: 1.15; letter-spacing: -0.015em; text-wrap: balance; margin: 0; } p { margin: 0; max-width: 70ch; text-wrap: pretty; } a { color: var(--accent-text); text-decoration-thickness: 1px; text-underline-offset: 3px; } a:hover { color: var(--accent-deep); } :focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 2px; } ::selection { background: var(--sel-bg); color: var(--sel-ink); } img, svg { display: block; max-width: 100%; } /* every number on this page is data */ .num, td.num { font-family: var(--mono); font-variant-numeric: tabular-nums; letter-spacing: -0.01em; } /* mono micro-labels (eyebrows, captions, tags) */ .tag { font-family: var(--mono); font-size: 0.72rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--faint); } .wrap { max-width: var(--wrap); margin-inline: auto; padding-inline: 24px; } .wrap-wide { max-width: var(--wrap-wide); margin-inline: auto; padding-inline: 24px; } /* ---- buttons ------------------------------------------------------------- */ .btn { display: inline-flex; align-items: center; gap: 0.55em; font: 600 1.02rem/1 var(--sans); padding: 0.9em 1.5em; border-radius: 6px; text-decoration: none; white-space: nowrap; } .btn-primary { background: var(--btn-bg); color: var(--btn-ink); border: 1px solid var(--btn-bg); } .btn-primary:hover { background: var(--btn-bg-hover); border-color: var(--btn-bg-hover); color: var(--btn-ink); } .btn-primary svg { stroke: currentColor; } /* compact variant for the sticky header */ .btn-sm { font-size: 0.88rem; padding: 0.55em 1.05em; } .btn-ghost { background: transparent; color: var(--ink-2); border: 1px solid var(--hair-2); } .btn-ghost:hover { border-color: var(--faint); color: var(--ink); } /* ---- header -------------------------------------------------------------- */ .site-head { position: sticky; top: 0; z-index: 10; background: color-mix(in srgb, var(--paper) 88%, transparent); backdrop-filter: blur(8px); border-bottom: 1px solid var(--hair); } .site-head .wrap { display: flex; align-items: center; gap: 28px; height: 60px; } .brand { display: flex; align-items: center; gap: 10px; font: 700 1.14rem/1 var(--sans); letter-spacing: -0.02em; color: var(--ink); text-decoration: none; } .brand b { color: var(--accent-text); font-weight: 700; } .brand svg { border-radius: 5px; } .site-nav { display: flex; gap: 22px; margin-left: 14px; } .site-nav a { font-size: 0.9rem; color: var(--ink-3); text-decoration: none; } .site-nav a:hover { color: var(--ink); } .head-actions { margin-left: auto; display: flex; align-items: center; gap: 20px; } .signin { font-size: 0.9rem; color: var(--ink-3); text-decoration: none; } .signin:hover { color: var(--ink); text-decoration: underline; } .theme-toggle { font-family: var(--mono); font-size: 0.78rem; color: var(--ink-3); background: transparent; border: 1px solid var(--hair-2); border-radius: 6px; padding: 6px 12px; cursor: pointer; white-space: nowrap; } .theme-toggle:hover { color: var(--ink); border-color: var(--faint); } /* ---- hero ---------------------------------------------------------------- */ .hero { padding: 84px 0 72px; } .hero .wrap { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 6fr); gap: 64px; align-items: center; } .hero-copy .tag { display: block; margin-bottom: 20px; color: var(--accent-text); } .hero h1 { font-size: clamp(2.1rem, 4.2vw, 3.3rem); font-weight: 750; } .hero .sub { margin-top: 22px; font-size: 1.11rem; color: var(--ink-3); max-width: 46ch; } .hero-cta { margin-top: 34px; display: flex; align-items: center; gap: 22px; flex-wrap: wrap; } .cta-note { margin-top: 14px; font-family: var(--mono); font-size: 0.8rem; color: var(--faint); } .cta-note b { color: var(--ink-2); font-weight: 500; } /* ---- diagram plate (hero figure) ----------------------------------------- */ .plate { background: var(--plate); border: 1px solid var(--hair); border-radius: 10px; box-shadow: var(--shadow-card); overflow: hidden; } .plate-head { display: flex; align-items: baseline; justify-content: space-between; gap: 16px; padding: 12px 18px; border-bottom: 1px solid var(--hair); } .plate-head .tag { letter-spacing: 0.1em; } .plate-body { padding: 10px 14px 4px; } .plate svg text { font-family: var(--mono); font-size: 10px; fill: var(--faint); } /* inline-SVG figure colors, themeable */ .fig-grid { stroke: var(--fig-grid); } .fig-axis { stroke: var(--fig-axis); } .fig-track { stroke: var(--fig-track); } .fig-knob { fill: var(--plate); stroke: var(--accent); } .readouts { display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid var(--hair); } .readout { padding: 12px 18px 14px; border-left: 1px solid var(--hair); min-width: 0; } .readout:first-child { border-left: 0; } .readout dt { font-family: var(--mono); font-size: 0.68rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--faint); margin: 0 0 4px; } .readout dd { margin: 0; font-family: var(--mono); font-variant-numeric: tabular-nums; font-size: 1.22rem; color: var(--ink); } .readout dd small { font-size: 0.72em; color: var(--ink-3); } .fig-note { margin-top: 10px; font-family: var(--mono); font-size: 0.72rem; color: var(--faint); } /* curve draw-in */ .curve { stroke-dasharray: 1200; stroke-dashoffset: 1200; animation: draw 1.6s cubic-bezier(0.4, 0, 0.2, 1) forwards; } .curve.c2 { animation-delay: 0.25s; } @keyframes draw { to { stroke-dashoffset: 0; } } /* ---- sections ------------------------------------------------------------ */ .section { padding: 88px 0; border-top: 1px solid var(--hair); } .sec-head { margin-bottom: 48px; max-width: 62ch; } .sec-head .tag { display: block; margin-bottom: 14px; } .sec-head h2 { font-size: clamp(1.6rem, 2.6vw, 2.15rem); font-weight: 700; } .sec-head .lede { margin-top: 14px; color: var(--ink-3); } /* ---- how it works -------------------------------------------------------- */ .steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; border: 1px solid var(--hair); border-radius: 10px; background: var(--plate); overflow: hidden; } .step { padding: 30px 30px 34px; border-left: 1px solid var(--hair); display: flex; flex-direction: column; gap: 0; } .step:first-child { border-left: 0; } .step .step-no { font-family: var(--mono); font-size: 0.78rem; color: var(--accent-text); letter-spacing: 0.12em; } .step h3 { font-size: 1.12rem; font-weight: 650; margin: 10px 0 10px; } .step p { font-size: 0.95rem; color: var(--ink-3); } .step-art { margin-top: auto; padding-top: 26px; } .step-art svg { width: 100%; height: auto; } /* ---- screenshot placeholder ---------------------------------------------- */ .shot-section { padding-bottom: 96px; } .shot { position: relative; aspect-ratio: 16 / 10; border: 1px dashed var(--hair-2); border-radius: 10px; background: repeating-linear-gradient(-45deg, var(--stripe-a) 0 14px, var(--stripe-b) 14px 28px); display: grid; place-items: center; overflow: hidden; } .shot-label { text-align: center; font-family: var(--mono); font-size: 0.8rem; line-height: 1.9; color: var(--faint); background: color-mix(in srgb, var(--plate) 92%, transparent); border: 1px solid var(--hair); border-radius: 8px; padding: 18px 28px; } .shot-label strong { color: var(--ink-2); font-weight: 600; letter-spacing: 0.06em; } /* real screenshot in app-window chrome (replaces the placeholder look) */ .appwin { border: 1px solid var(--hair-2); border-radius: 10px; overflow: hidden; background: var(--plate); box-shadow: var(--shadow-win); } .appwin-bar { display: flex; align-items: center; gap: 14px; padding: 10px 16px; border-bottom: 1px solid var(--hair); font-family: var(--mono); font-size: 0.72rem; letter-spacing: 0.08em; color: var(--faint); } .appwin-dots { display: inline-flex; gap: 6px; } .appwin-dots i { width: 9px; height: 9px; border-radius: 50%; background: var(--hair-2); } .appwin-title { color: var(--ink-2); } .appwin-hint { margin-left: auto; } .shot--scroll { display: block; overflow: auto; border: 0; border-radius: 0; background: var(--shot-bg); } .shot--scroll img { display: block; width: 100%; height: auto; } .shot-caption { margin-top: 16px; font-size: 0.92rem; color: var(--faint); text-align: center; margin-inline: auto; } /* ---- spec sheet (features) ------------------------------------------------ */ .spec { display: grid; grid-template-columns: repeat(3, 1fr); gap: 40px; } .spec-col { border-top: 2px solid var(--ink); padding-top: 18px; } .spec-col > .tag { color: var(--accent-text); } .spec-col h3 { font-size: 1.08rem; font-weight: 650; margin: 8px 0 6px; } .spec-col > p { font-size: 0.92rem; color: var(--faint); margin-bottom: 18px; } .spec-list { list-style: none; margin: 0; padding: 0; } .spec-list li { padding: 11px 0; border-top: 1px solid var(--hair); font-size: 0.94rem; color: var(--ink-2); display: flex; gap: 12px; align-items: baseline; } .spec-list li::before { content: "—"; color: var(--hair-2); flex: none; } .spec-list b { font-weight: 600; color: var(--ink); } .spec-list .lock { margin-left: auto; flex: none; font-family: var(--mono); font-size: 0.66rem; letter-spacing: 0.08em; color: var(--faint); border: 1px solid var(--hair); border-radius: 99px; padding: 2px 8px; white-space: nowrap; } /* ---- method / credibility -------------------------------------------------- */ .method .wrap { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 6fr); gap: 72px; align-items: start; } .method-points { list-style: none; margin: 26px 0 0; padding: 0; display: grid; gap: 22px; } .method-points li { padding-left: 24px; position: relative; } .method-points li::before { content: ""; position: absolute; left: 0; top: 0.52em; width: 10px; height: 10px; border: 2px solid var(--accent); border-radius: 50%; } .method-points b { display: block; font-weight: 650; margin-bottom: 3px; } .method-points p { font-size: 0.95rem; color: var(--ink-3); } /* equation card */ .eq-card { background: var(--plate); border: 1px solid var(--hair); border-radius: 10px; overflow: hidden; } .eq-card .plate-head .tag { color: var(--faint); } .eq-list { margin: 0; padding: 6px 0; } .eq-row { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 6px 24px; align-items: baseline; padding: 16px 22px; border-top: 1px solid var(--hair); } .eq-row:first-child { border-top: 0; } .eq { font-family: var(--mono); font-size: 1.02rem; color: var(--ink); white-space: nowrap; } .eq sub, .eq sup { font-size: 0.62em; } .eq .frac { display: inline-grid; grid-template-rows: auto auto; justify-items: center; vertical-align: middle; line-height: 1.15; font-size: 0.88em; } .eq .frac > span:first-child { border-bottom: 1px solid var(--ink-2); padding: 0 0.3em 1px; } .eq .frac > span:last-child { padding: 1px 0.3em 0; } .eq-name { font-family: var(--mono); font-size: 0.7rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--faint); text-align: right; } .eq-foot { padding: 14px 22px 18px; border-top: 1px solid var(--hair); font-size: 0.88rem; color: var(--faint); } /* ---- who it's for ---------------------------------------------------------- */ .who { display: grid; grid-template-columns: repeat(3, 1fr); gap: 40px; } .who article { border-top: 1px solid var(--hair-2); padding-top: 18px; } .who .tag { color: var(--accent-text); } .who h3 { font-size: 1.06rem; font-weight: 650; margin: 8px 0 8px; } .who p { font-size: 0.94rem; color: var(--ink-3); } /* ---- pricing --------------------------------------------------------------- Self-contained: deleting
leaves no visual gap (adjacent sections carry their own top borders / padding). */ .price-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; align-items: stretch; } .price-panel { background: var(--plate); border: 1px solid var(--hair); border-radius: 10px; padding: 34px 34px 38px; display: flex; flex-direction: column; } .price-panel.free { border-color: var(--hair-2); } .price-head { display: flex; align-items: center; gap: 12px; margin-bottom: 6px; } .price-head h3 { font-size: 1.3rem; font-weight: 700; } .pill { font-family: var(--mono); font-size: 0.66rem; letter-spacing: 0.12em; text-transform: uppercase; padding: 4px 10px; border-radius: 99px; white-space: nowrap; } .pill-now { background: var(--accent-wash); color: var(--pill-now-ink); border: 1px solid var(--pill-now-border); } .pill-soon { background: var(--pill-soon-bg); color: var(--faint); border: 1px solid var(--pill-soon-border); } .price-sub { font-size: 0.95rem; color: var(--faint); margin-bottom: 22px; } .price-list { list-style: none; margin: 0 0 30px; padding: 0; } .price-list li { padding: 10px 0; border-top: 1px solid var(--hair); font-size: 0.95rem; color: var(--ink-2); display: flex; gap: 12px; align-items: baseline; } .price-list li::before { content: "—"; color: var(--hair-2); flex: none; } .price-list b { font-weight: 600; color: var(--ink); } .price-panel .btn { margin-top: auto; align-self: flex-start; } .price-foot { margin-top: auto; font-family: var(--mono); font-size: 0.78rem; color: var(--faint); } /* ---- final CTA -------------------------------------------------------------- */ .final { text-align: center; padding: 108px 0 116px; } .final h2 { font-size: clamp(1.8rem, 3.2vw, 2.6rem); font-weight: 750; } .final p { margin: 18px auto 0; color: var(--ink-3); } .final .hero-cta { justify-content: center; } .final .cta-note { margin-top: 16px; } /* ---- footer ----------------------------------------------------------------- */ .site-foot { border-top: 1px solid var(--hair); padding: 30px 0 44px; } .site-foot .wrap { display: flex; flex-wrap: wrap; gap: 12px 32px; align-items: baseline; font-size: 0.85rem; color: var(--faint); } .site-foot a { color: var(--faint); text-decoration: none; } .site-foot a:hover { color: var(--ink-2); text-decoration: underline; } .site-foot .foot-legal { margin-left: auto; display: flex; gap: 24px; } /* ---- responsive --------------------------------------------------------------- */ @media (max-width: 1020px) { .hero .wrap { grid-template-columns: 1fr; gap: 48px; } .hero { padding: 56px 0 64px; } .hero .sub { max-width: 60ch; } .method .wrap { grid-template-columns: 1fr; gap: 48px; } .spec { grid-template-columns: 1fr; gap: 32px; } .who { grid-template-columns: 1fr; gap: 28px; } .steps { grid-template-columns: 1fr; } .step { border-left: 0; border-top: 1px solid var(--hair); } .step:first-child { border-top: 0; } .step-art { padding-top: 18px; } .step-art svg { max-width: 340px; } } @media (max-width: 820px) { .site-nav { display: none; } .price-grid { grid-template-columns: 1fr; } .section { padding: 64px 0; } .readouts { grid-template-columns: repeat(2, 1fr); } .readout:nth-child(3) { border-left: 0; } .readout { border-top: 1px solid var(--hair); } .readout:nth-child(-n+2) { border-top: 0; } } @media (max-width: 480px) { body { font-size: 16px; } .wrap, .wrap-wide { padding-inline: 18px; } /* keep logo + toggle + CTA; Sign in yields the space */ .signin { display: none; } .head-actions { gap: 12px; } .site-head .wrap { gap: 16px; } .brand svg { flex: none; } .theme-toggle { padding: 6px 9px; } .hero-cta .btn { width: 100%; justify-content: center; } .price-panel { padding: 26px 22px 30px; } .price-panel .btn { align-self: stretch; justify-content: center; } .eq-row { grid-template-columns: 1fr; } .eq-name { text-align: left; } .eq { font-size: 0.92rem; } .shot-label { padding: 12px 16px; font-size: 0.7rem; } } /* ---- utilities ----------------------------------------------------------------- */ .visually-hidden { position: absolute; width: 1px; height: 1px; margin: -1px; padding: 0; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0; } .skip-link { position: absolute; left: 16px; top: -52px; z-index: 20; background: var(--ink); color: var(--plate); padding: 10px 16px; border-radius: 0 0 6px 6px; font-size: 0.9rem; text-decoration: none; transition: top 0.15s; } .skip-link:focus { top: 0; } .url-chip { display: block; font-family: var(--mono); font-size: 0.78rem; color: var(--ink-2); background: var(--paper); border: 1px solid var(--hair); border-radius: 6px; padding: 10px 14px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; } /* ---- reduced motion ------------------------------------------------------------ */ @media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } .curve { animation: none; stroke-dasharray: none; stroke-dashoffset: 0; } * { transition: none !important; } }