/* ========================================================================== Step Exchange — landing styles Plain CSS, mobile-first. All colors come from the tokens in :root. Breakpoints: 640px (tablet), 960px (desktop). ========================================================================== */ /* ---------- 1. Design tokens ---------- */ /* Color — dark (default). Theme is set by data-theme on : "dark" | "light". */ :root, [data-theme="dark"] { color-scheme: dark; --bg: #0B0F17; /* page background */ --surface: #121824; /* cards, widget, footer */ --surface-2: #19202E; /* notice bar, raised / secondary */ --border: #263042; /* hairlines, card borders */ --border-strong: #3A4660; /* hover borders, dashed placeholders */ --text: #E9EDF4; /* primary text (16:1 on --bg) */ --text-muted: #9AA5B8; /* secondary text (7.7:1 on --bg) */ --accent: #5CB8FF; /* the single accent: links, primary button, icons */ --accent-hover: #8DCEFF; --accent-contrast: #06131F; /* text/icons on accent fills (8.7:1) */ --accent-soft: rgba(92, 184, 255, 0.12); /* icon tiles, ghost hover */ --success: #3DD68C; --warning: #F5B94A; --error: #FF7A7A; } /* Color — light. Same roles, accent darkened to keep AA on white. */ [data-theme="light"] { color-scheme: light; --bg: #F4F6F9; --surface: #FFFFFF; --surface-2: #E9EDF3; --border: #D9DFE8; --border-strong: #B4BDCB; --text: #0E1420; /* 17:1 on --bg */ --text-muted: #525D6F; /* 6.2:1 on --bg */ --accent: #0B6BC4; /* 5.0:1 on --bg, 5.4:1 on white */ --accent-hover: #0A5AA6; --accent-contrast: #FFFFFF; /* 5.4:1 on accent */ --accent-soft: rgba(11, 107, 196, 0.10); --success: #12804A; --warning: #9A5A00; --error: #C62F2F; } :root { /* Shape */ --radius: 16px; /* cards, widget container */ --radius-sm: 10px; /* buttons, inputs, tiles */ --radius-pill: 999px; /* Type */ --font: "IBM Plex Sans", system-ui, -apple-system, "Segoe UI", sans-serif; --font-mono: ui-monospace, "SF Mono", Menlo, Consolas, monospace; --fs-xs: 12px; --fs-sm: 14px; --fs-base: 16px; --fs-lg: 18px; --fs-xl: 22px; --fs-2xl: 28px; --fs-3xl: 34px; /* H1 mobile; 52px on desktop */ /* Layout */ --container: 1200px; --gutter: 16px; --header-h: 56px; --widget-w: 420px; --widget-h: 740px; --widget-h-mobile: 740px; } @media (max-width: 374px) { :root { --gutter: 12px; } } @media (min-width: 960px) { :root { --gutter: 32px; --header-h: 72px; --fs-2xl: 36px; --fs-3xl: 52px; } } /* ---------- 2. Base ---------- */ *, *::before, *::after { box-sizing: border-box; } html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; } @media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } } body { margin: 0; background: var(--bg); color: var(--text); font-family: var(--font); font-size: var(--fs-base); line-height: 1.55; -webkit-font-smoothing: antialiased; overflow-x: hidden; } img, svg { display: block; max-width: 100%; } a { color: var(--accent); text-underline-offset: 3px; } a:hover { color: var(--accent-hover); } :focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 4px; } h1, h2, h3 { margin: 0; line-height: 1.15; letter-spacing: -0.015em; font-weight: 600; } p { margin: 0; } .container { width: 100%; max-width: calc(var(--container) + 2 * var(--gutter)); margin-inline: auto; padding-inline: var(--gutter); } .ico { fill: none; stroke: currentColor; stroke-width: 1.75; stroke-linecap: round; stroke-linejoin: round; } .visually-hidden { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); clip-path: inset(50%); white-space: nowrap; } .skip-link { position: absolute; left: 8px; top: -60px; z-index: 50; padding: 10px 14px; background: var(--accent); color: var(--accent-contrast); border-radius: var(--radius-sm); font-weight: 600; text-decoration: none; } .skip-link:focus { top: 8px; } .mono { font-family: var(--font-mono); } /* ---------- 3. Buttons ---------- */ .btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; min-height: 48px; padding: 0 22px; border: 1px solid transparent; border-radius: var(--radius-sm); font: inherit; font-size: var(--fs-base); font-weight: 600; text-decoration: none; cursor: pointer; transition: background-color .15s, border-color .15s, color .15s; } .btn .ico { width: 18px; height: 18px; } .btn--primary { background: var(--accent); color: var(--accent-contrast); } .btn--primary:hover { background: var(--accent-hover); color: var(--accent-contrast); } .btn--secondary { background: var(--surface-2); color: var(--text); border-color: var(--border-strong); } .btn--secondary:hover { border-color: var(--text-muted); color: var(--text); } .btn--ghost { background: transparent; color: var(--accent); } .btn--ghost:hover { background: var(--accent-soft); color: var(--accent-hover); } .btn:disabled, .btn[aria-disabled="true"] { opacity: .45; cursor: not-allowed; } /* ---------- 4. Notice bar ---------- */ .notice-bar { background: var(--surface-2); border-bottom: 1px solid var(--border); color: var(--text-muted); font-size: 11.5px; line-height: 1.45; } .notice-bar__inner { display: flex; align-items: flex-start; gap: 8px; padding-block: 7px; } .notice-bar__icon { flex: none; width: 14px; height: 14px; margin-top: 2px; } .notice-bar a { color: var(--text); white-space: nowrap; } .notice-bar a:hover { color: var(--accent-hover); } .notice-bar__long { display: none; } @media (min-width: 640px) { .notice-bar { font-size: var(--fs-xs); } .notice-bar__inner { align-items: center; justify-content: center; padding-block: 9px; } .notice-bar__icon { margin-top: 0; } .notice-bar__short { display: none; } .notice-bar__long { display: inline; } } /* ---------- 5. Header ---------- */ .site-header { position: relative; z-index: 20; background: var(--bg); border-bottom: 1px solid var(--border); } .site-header__inner { display: flex; align-items: center; justify-content: space-between; height: var(--header-h); } .logo { display: inline-flex; align-items: center; gap: 10px; min-height: 44px; color: var(--text); text-decoration: none; font-size: 17px; font-weight: 600; letter-spacing: -0.01em; } .logo:hover { color: var(--text); } .logo__mark { width: 28px; height: 28px; border-radius: 8px; flex: none; display: grid; place-items: center; background: var(--accent); color: var(--accent-contrast); } .logo__mark svg { width: 20px; height: 20px; } .logo__mark .ico { stroke-width: 2.25; } .logo__mark .dot { fill: currentColor; stroke: none; } .logo__light { font-weight: 400; color: var(--text-muted); } .nav-desktop { display: none; gap: 4px; } .nav-desktop a { display: inline-flex; align-items: center; min-height: 44px; padding: 0 14px; color: var(--text-muted); text-decoration: none; font-size: var(--fs-sm); font-weight: 500; border-radius: var(--radius-sm); } .nav-desktop a:hover { color: var(--text); background: var(--surface); } .header-actions { display: flex; align-items: center; gap: 8px; } /* Theme toggle — shows the sun in dark mode (switch to light), the moon in light mode */ .theme-toggle { width: 44px; height: 44px; padding: 0; display: grid; place-items: center; background: transparent; color: var(--text); cursor: pointer; border: 1px solid var(--border); border-radius: var(--radius-sm); } .theme-toggle:hover { background: var(--surface); border-color: var(--border-strong); } .theme-toggle .ico { width: 20px; height: 20px; } .theme-toggle .icon-moon, [data-theme="light"] .theme-toggle .icon-sun { display: none; } [data-theme="light"] .theme-toggle .icon-moon, [data-theme="dark"] .theme-toggle .icon-sun { display: block; } [data-theme="dark"] .theme-toggle .icon-moon { display: none; } .nav-mobile summary { list-style: none; cursor: pointer; width: 44px; height: 44px; display: grid; place-items: center; border: 1px solid var(--border); border-radius: var(--radius-sm); color: var(--text); } .nav-mobile summary::-webkit-details-marker { display: none; } .nav-mobile summary .ico { width: 22px; height: 22px; } .nav-mobile .icon-close { display: none; } .nav-mobile[open] .icon-close { display: block; } .nav-mobile[open] .icon-menu { display: none; } .nav-mobile__panel { position: absolute; left: 0; right: 0; top: 100%; padding: 4px var(--gutter) 16px; background: var(--bg); border-bottom: 1px solid var(--border); } .nav-mobile__panel a { display: flex; align-items: center; justify-content: space-between; min-height: 52px; color: var(--text); text-decoration: none; font-size: var(--fs-lg); font-weight: 500; border-bottom: 1px solid var(--border); } .nav-mobile__panel a:last-child { border-bottom: 0; } .nav-mobile__panel .ico { width: 18px; height: 18px; color: var(--text-muted); } @media (min-width: 960px) { .site-header { position: sticky; top: 0; } .nav-desktop { display: flex; } .nav-mobile { display: none; } main section[id] { scroll-margin-top: calc(var(--header-h) + 16px); } } /* ---------- 6. Hero / swap ---------- */ .hero { padding-block: 16px 48px; } .hero__grid { display: flex; flex-direction: column; gap: 32px; } .hero__widget { order: -1; } /* mobile: widget first, text below */ .eyebrow { display: inline-flex; align-items: center; gap: 8px; font-family: var(--font-mono); font-size: var(--fs-xs); font-weight: 500; letter-spacing: .06em; text-transform: uppercase; color: var(--text-muted); } .eyebrow::before { content: ""; width: 6px; height: 6px; border-radius: 2px; background: var(--accent); } .hero h1 { font-size: var(--fs-3xl); margin-top: 14px; max-width: 14ch; } .hero__sub { margin-top: 16px; font-size: var(--fs-lg); color: var(--text-muted); max-width: 36ch; } .trust { list-style: none; margin: 28px 0 0; padding: 0; display: grid; gap: 12px; } .trust li { display: flex; align-items: center; gap: 12px; font-size: var(--fs-sm); font-weight: 500; } .trust__icon { flex: none; width: 36px; height: 36px; display: grid; place-items: center; border-radius: var(--radius-sm); background: var(--accent-soft); color: var(--accent); } .trust__icon .ico { width: 18px; height: 18px; } /* Widget slot — LI.FI widget mounts into #swap-widget */ #swap-widget { width: 100%; height: var(--widget-h-mobile); background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; } #swap-widget:empty { display: grid; place-items: center; } #swap-widget:empty::before { content: "LI.FI swap widget"; padding: 10px 16px; font-family: var(--font-mono); font-size: var(--fs-sm); color: var(--text-muted); border: 1px dashed var(--border-strong); border-radius: var(--radius-sm); } .widget-meta { display: flex; flex-wrap: wrap; justify-content: center; gap: 2px 16px; margin-top: 10px; font-size: var(--fs-xs); color: var(--text-muted); } @media (min-width: 960px) { .hero { padding-block: 64px 96px; } .hero__grid { display: grid; grid-template-columns: minmax(0, 1fr) var(--widget-w); gap: 64px; align-items: center; } .hero__widget { order: 0; } #swap-widget { width: var(--widget-w); height: var(--widget-h); } .trust { grid-auto-flow: column; justify-content: start; gap: 28px; margin-top: 36px; } } /* ---------- 7. Sections (shared) ---------- */ .section { padding-block: 56px; border-top: 1px solid var(--border); } .section__head { max-width: 640px; margin-bottom: 32px; } .section h2 { font-size: var(--fs-2xl); margin-top: 12px; } .section__lead { margin-top: 12px; color: var(--text-muted); font-size: var(--fs-base); } .section__cta { margin-top: 32px; } .section__cta .btn { width: 100%; } .icon-tile { flex: none; width: 44px; height: 44px; display: grid; place-items: center; border-radius: var(--radius-sm); background: var(--accent-soft); color: var(--accent); } .icon-tile .ico { width: 22px; height: 22px; } @media (min-width: 640px) { .section__cta .btn { width: auto; } } @media (min-width: 960px) { .section { padding-block: 96px; } .section__head { margin-bottom: 48px; } } /* ---------- 8. How it works ---------- */ .steps { list-style: none; margin: 0; padding: 0; display: grid; gap: 12px; } .step { display: flex; gap: 16px; padding: 20px; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); } .step__num { font-family: var(--font-mono); font-size: var(--fs-xs); color: var(--text-muted); } .step h3 { font-size: var(--fs-lg); margin-top: 2px; } .step p { margin-top: 6px; font-size: var(--fs-sm); color: var(--text-muted); } @media (min-width: 960px) { .steps { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 24px; } .step { flex-direction: column; gap: 20px; padding: 28px; position: relative; } .step:not(:last-child)::after { /* connector between steps */ content: ""; position: absolute; top: 50px; right: -25px; width: 26px; height: 1px; background: var(--border-strong); } } /* ---------- 9. Why / feature cards ---------- */ .cards { display: grid; gap: 12px; } .card { padding: 24px; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); } .card h3 { margin-top: 18px; font-size: var(--fs-lg); } .card p { margin-top: 8px; font-size: var(--fs-sm); color: var(--text-muted); } .card__figure { font-family: var(--font-mono); color: var(--text); } @media (min-width: 640px) { .cards { grid-template-columns: repeat(2, minmax(0, 1fr)); } } @media (min-width: 960px) { .cards { grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 24px; } .card { padding: 28px; } } /* ---------- 10. Networks ---------- */ .networks { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px; } .network { display: flex; align-items: center; gap: 12px; min-height: 60px; padding: 12px 14px; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-sm); font-size: var(--fs-sm); font-weight: 500; } .network__logo { flex: none; width: 32px; height: 32px; } .network__logo circle { fill: var(--surface-2); stroke: var(--border-strong); } .network__logo text { fill: var(--text-muted); font-family: var(--font-mono); font-size: 11px; font-weight: 600; } .network--more { justify-content: center; color: var(--text-muted); border-style: dashed; background: transparent; } @media (min-width: 640px) { .networks { grid-template-columns: repeat(3, minmax(0, 1fr)); } } @media (min-width: 960px) { .networks { grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 12px; } .network { min-height: 68px; padding: 14px 18px; } } /* ---------- 11. FAQ (native details/summary) ---------- */ .faq-layout { display: grid; gap: 8px; } .faq-list { border-top: 1px solid var(--border); } .faq-item { border-bottom: 1px solid var(--border); } .faq-item summary { display: flex; align-items: center; justify-content: space-between; gap: 16px; min-height: 60px; padding: 12px 0; list-style: none; cursor: pointer; font-weight: 500; font-size: var(--fs-base); } .faq-item summary::-webkit-details-marker { display: none; } .faq-item summary:hover { color: var(--accent-hover); } .faq-item__toggle { flex: none; width: 32px; height: 32px; display: grid; place-items: center; border: 1px solid var(--border); border-radius: var(--radius-pill); color: var(--text-muted); transition: transform .2s; } .faq-item__toggle .ico { width: 16px; height: 16px; } .faq-item[open] .faq-item__toggle { transform: rotate(45deg); color: var(--accent); border-color: var(--accent); } .faq-item__answer { padding: 0 44px 20px 0; color: var(--text-muted); max-width: 68ch; } .faq-item__answer p + p { margin-top: 10px; } @media (min-width: 960px) { .faq-layout { grid-template-columns: minmax(0, 1fr) minmax(0, 2fr); gap: 64px; align-items: start; } .faq-item summary { font-size: var(--fs-lg); min-height: 68px; } } /* ---------- 12. Footer ---------- */ .site-footer { background: var(--surface); border-top: 1px solid var(--border); padding-block: 40px 24px; font-size: var(--fs-sm); } .footer__top { display: grid; gap: 24px; } .footer__desc { margin-top: 10px; color: var(--text-muted); max-width: 42ch; } .footer__disclaimer { padding: 16px; font-size: var(--fs-xs); line-height: 1.6; color: var(--text-muted); background: var(--bg); border: 1px solid var(--border); border-radius: var(--radius-sm); } .footer__bottom { display: flex; flex-direction: column-reverse; gap: 12px; margin-top: 28px; padding-top: 16px; border-top: 1px solid var(--border); font-size: var(--fs-xs); color: var(--text-muted); } .footer__links { display: flex; flex-wrap: wrap; margin: 0 -12px; padding: 0; list-style: none; } .footer__links a { display: inline-flex; align-items: center; min-height: 44px; padding: 0 12px; color: var(--text); text-decoration: none; font-size: var(--fs-sm); } .footer__links a:hover { color: var(--accent-hover); text-decoration: underline; } @media (min-width: 960px) { .footer__top { grid-template-columns: minmax(0, 1fr) minmax(0, 1.3fr); gap: 64px; align-items: start; } .footer__bottom { flex-direction: row; justify-content: space-between; align-items: center; } } /* Mounted LI.FI widget: it draws its own card, so the slot becomes a transparent wrapper */ #swap-widget:not(:empty) { height: var(--widget-h-mobile); min-height: 0; background: transparent; border: 0; overflow: visible; display: flex; justify-content: center; } #swap-widget:not(:empty) > * { width: 100%; } @media (min-width: 960px) { #swap-widget:not(:empty) { height: var(--widget-h); min-height: 0; } } /* Simple content pages (terms, privacy, contact, guides) */ .page { border-top: 0; } .prose { max-width: 760px; } .prose h1 { font-size: var(--fs-2xl); margin-bottom: 8px; } .prose h2 { font-size: var(--fs-lg, 1.25rem); margin: 32px 0 8px; } .prose p, .prose li { color: var(--text-muted); line-height: 1.7; margin-top: 12px; } .prose ul { padding-left: 1.2em; } .prose a { color: var(--accent); } .page__meta { font-size: var(--fs-sm); color: var(--text-muted); }