/* Kardiacs — marketing site Brand tokens lifted straight from the app's Assets.xcassets (dark-mode values): pulseTeal, sprintCoral, streakGold, kardiacCrimson, rideBackground, rideCard — so this reads as the same product as the phone app. */ :root { --bg: #15151a; --bg-elevated: #1a1a20; --card: #1e1e24; --card-alt: #2c2c34; --border: #3c3c46; --border-soft: rgba(255, 255, 255, 0.08); --text-primary: #faf6f1; --text-secondary: #9a9aa5; --text-tertiary: #6e6e78; --teal: #0e9594; --teal-light: #4fc3c1; --coral: #ff7a5c; --coral-light: #ff8f75; --gold: #f5a623; --gold-light: #ffbe4d; --crimson: #c0392b; --crimson-light: #d9594b; --action: var(--teal-light); --energy: var(--coral-light); --reward: var(--gold-light); /* "Ink" variants — used wherever an accent color sits as small text or an icon glyph on a pale tinted chip (eyebrow, check marks, feature icons) rather than as a solid button/gradient background. In dark mode these are identical to the bright "-light" hues already used everywhere; in light mode (see [data-theme="light"] below) they swap to genuinely dark shades so that text stays readable on a light page instead of washing out. Buttons and gradients intentionally keep using --teal/--teal-light etc. directly, unaffected by theme. */ --teal-ink: var(--teal-light); --coral-ink: var(--coral-light); --gold-ink: var(--gold-light); --crimson-ink: var(--crimson-light); /* Translucent sticky-nav background — kept separate from --bg because it needs its own alpha for the backdrop-filter blur; swaps per theme below. */ --nav-bg: rgba(21, 21, 26, 0.82); --radius-sm: 10px; --radius-md: 16px; --radius-lg: 24px; --font-sans: -apple-system, BlinkMacSystemFont, "SF Pro Rounded", ui-rounded, "Segoe UI", Roboto, system-ui, sans-serif; --max-width: 1160px; color-scheme: dark; } /* ── Light theme ───────────────────────────────────────────────────────── Same brand hues (--teal, --coral, --gold, --crimson and their "-light" variants) stay constant across themes — only the page's own surface and text tokens flip, plus the four "-ink" tokens above swap to dark shades so accent text/icons keep working on a light page. Toggled via a `data-theme` attribute on (see js/main.js); defaults to the OS's preference on first visit. */ html[data-theme="light"] { --bg: #faf6f1; --bg-elevated: #f1eae0; --card: #ffffff; --card-alt: #f3ece2; --border: #e5ded5; --border-soft: rgba(44, 44, 52, 0.08); --text-primary: #2c2c34; --text-secondary: #6b6258; --text-tertiary: #756b5f; --teal-ink: #062e2a; --coral-ink: #7a2e17; --gold-ink: #6b4207; --crimson-ink: #6a1f16; --nav-bg: rgba(250, 246, 241, 0.82); color-scheme: light; } * { box-sizing: border-box; } html { scroll-behavior: smooth; } body { margin: 0; background: var(--bg); color: var(--text-primary); font-family: var(--font-sans); -webkit-font-smoothing: antialiased; line-height: 1.5; } img, svg { display: block; max-width: 100%; } a { color: inherit; text-decoration: none; } .wrap { max-width: var(--max-width); margin: 0 auto; padding: 0 28px; } ::selection { background: var(--teal); color: white; } h1, h2, h3 { margin: 0; font-weight: 800; letter-spacing: -0.01em; } p { margin: 0; } .eyebrow { display: inline-flex; align-items: center; gap: 6px; font-size: 12.5px; font-weight: 700; letter-spacing: 0.04em; text-transform: uppercase; color: var(--teal-ink); background: rgba(79, 195, 193, 0.12); padding: 6px 12px; border-radius: 999px; } /* ── Buttons ─────────────────────────────────────────────────────────── */ .btn { display: inline-flex; align-items: center; justify-content: center; gap: 9px; padding: 13px 24px; border-radius: var(--radius-sm); font-size: 15px; font-weight: 700; cursor: pointer; border: none; transition: transform 0.12s ease, opacity 0.15s ease, background 0.15s ease; } .btn:active { transform: scale(0.97); } .btn-primary { background: linear-gradient(135deg, var(--teal), var(--teal-light)); color: #06201f; } .btn-primary:hover { opacity: 0.92; } .btn-ghost { background: var(--card-alt); color: var(--text-primary); border: 1px solid var(--border); } .btn-ghost:hover { background: #34343d; } .btn-text { background: transparent; color: var(--text-secondary); padding: 13px 10px; } .btn-text:hover { color: var(--text-primary); } .btn-sm { padding: 9px 16px; font-size: 13.5px; } /* ── Nav ─────────────────────────────────────────────────────────────── */ .nav { position: sticky; top: 0; z-index: 50; background: var(--nav-bg); backdrop-filter: blur(14px); border-bottom: 1px solid var(--border-soft); } .nav .wrap { display: flex; align-items: center; justify-content: space-between; height: 68px; } .nav-brand { display: flex; align-items: center; gap: 10px; font-weight: 800; font-size: 15.5px; } /* The app's own mark, served from the same file the tab icon uses — one drawing, generated once, rather than a letter in a box that has to be kept looking like it. The SVG carries its own background and corner radius. */ .brand-mark { width: 32px; height: 32px; display: block; flex-shrink: 0; } .nav-links { display: flex; align-items: center; gap: 6px; } .nav-links a.link { padding: 9px 14px; font-size: 14px; font-weight: 600; color: var(--text-secondary); border-radius: 8px; } .nav-links a.link:hover { color: var(--text-primary); background: var(--card-alt); } .nav-cta { display: flex; gap: 10px; align-items: center; } .nav-toggle { display: none; background: none; border: none; color: var(--text-primary); font-size: 24px; cursor: pointer; } /* ── Theme toggle ────────────────────────────────────────────────────── */ .theme-toggle { display: flex; align-items: center; justify-content: center; width: 38px; height: 38px; padding: 0; border-radius: var(--radius-sm); background: var(--card-alt); border: 1px solid var(--border); color: var(--text-primary); cursor: pointer; } .theme-toggle:hover { background: #34343d; } .theme-toggle .icon-sun, .theme-toggle .icon-moon { display: none; } /* Dark mode (default): show a sun (click to switch to light). */ html:not([data-theme="light"]) .theme-toggle .icon-sun { display: block; } /* Light mode: show a moon (click to switch to dark). */ html[data-theme="light"] .theme-toggle .icon-moon { display: block; } html[data-theme="light"] .theme-toggle:hover { background: #e5ded5; } /* ── Hero ────────────────────────────────────────────────────────────── */ .hero { position: relative; padding: 96px 0 80px; overflow: hidden; background: radial-gradient(760px 420px at 12% -10%, rgba(79, 195, 193, 0.16), transparent), radial-gradient(700px 420px at 100% 0%, rgba(255, 143, 117, 0.12), transparent); } .hero-inner { max-width: 720px; } .hero h1 { font-size: 52px; line-height: 1.08; margin: 20px 0 20px; } .hero p.lead { font-size: 18px; color: var(--text-secondary); max-width: 560px; margin-bottom: 32px; } .hero-ctas { display: flex; flex-wrap: wrap; gap: 12px; margin-bottom: 20px; } .hero-fineprint { font-size: 13px; color: var(--text-tertiary); } .hero-fineprint b { color: var(--text-secondary); } /* ── Free-to-use strip ───────────────────────────────────────────────── */ .strip { border-top: 1px solid var(--border-soft); border-bottom: 1px solid var(--border-soft); background: var(--bg-elevated); padding: 16px 0; } .strip .wrap { display: flex; align-items: center; justify-content: center; gap: 10px; flex-wrap: wrap; text-align: center; font-size: 14.5px; color: var(--text-secondary); } .strip b { color: var(--text-primary); } .strip .dot { width: 4px; height: 4px; border-radius: 50%; background: var(--border); } /* ── Sections ────────────────────────────────────────────────────────── */ section { padding: 88px 0; } .section-head { max-width: 620px; margin: 0 auto 52px; text-align: center; } .section-head h2 { font-size: 34px; margin: 14px 0 12px; } .section-head p { color: var(--text-secondary); font-size: 16px; } /* ── Feature grid ────────────────────────────────────────────────────── */ .feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; } .feature-card { background: var(--card); border: 1px solid var(--border-soft); border-radius: var(--radius-md); padding: 26px; transition: transform 0.15s ease, border-color 0.15s ease; } .feature-card:hover { transform: translateY(-3px); border-color: var(--border); } .feature-icon { width: 44px; height: 44px; border-radius: 12px; display: flex; align-items: center; justify-content: center; margin-bottom: 16px; font-size: 20px; } .feature-card h3 { font-size: 16.5px; margin-bottom: 8px; } .feature-card p { font-size: 13.75px; color: var(--text-secondary); line-height: 1.6; } /* ── Screenshot showcase ─────────────────────────────────────────────── */ .show-row { display: flex; align-items: center; gap: 64px; margin-bottom: 96px; } .show-row:last-child { margin-bottom: 0; } .show-row.reverse { flex-direction: row-reverse; } .show-media { flex: 0 0 44%; display: flex; gap: 16px; } .show-media:not(.two-up) { justify-content: center; } .show-media.two-up .show-shot { flex: 1 1 0; min-width: 0; } .show-media:not(.two-up) .show-shot { max-width: 320px; } .show-shot { border-radius: 20px; overflow: hidden; border: 1px solid var(--border-soft); box-shadow: 0 30px 70px -24px rgba(0, 0, 0, 0.5); background: var(--card); } .show-shot img { width: 100%; display: block; } /* The Apple Watch shots are small and near-square, so a row of five reads better than the phone layout's one-or-two tall portraits. */ .show-media.watch-strip { flex-wrap: wrap; gap: 12px; justify-content: center; } .show-media.watch-strip .watch-shot { flex: 0 0 calc(33.333% - 8px); border-radius: 14px; } .show-text { flex: 1 1 0; min-width: 0; } .show-text .eyebrow { margin-bottom: 4px; } .show-title { font-size: 28px; font-weight: 800; letter-spacing: -0.01em; margin: 14px 0 14px; } .show-desc { font-size: 16px; color: var(--text-secondary); line-height: 1.65; max-width: 460px; } @media (max-width: 900px) { .show-row, .show-row.reverse { flex-direction: column; gap: 24px; margin-bottom: 64px; } .show-media { flex: none; width: 100%; } .show-media:not(.two-up) .show-shot { max-width: 280px; } .show-media.watch-strip .watch-shot { max-width: none; flex-basis: calc(33.333% - 8px); } .show-title { font-size: 24px; } .show-desc { max-width: none; } } @media (max-width: 520px) { .show-media.two-up { gap: 10px; } } /* ── Steps ───────────────────────────────────────────────────────────── */ .steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; } .step { position: relative; padding: 8px 8px 8px 0; } .step-num { font-size: 13px; font-weight: 800; color: #06201f; background: var(--teal-light); width: 30px; height: 30px; border-radius: 50%; display: flex; align-items: center; justify-content: center; margin-bottom: 18px; } .step h3 { font-size: 17px; margin-bottom: 8px; } .step p { font-size: 14px; color: var(--text-secondary); line-height: 1.6; } /* ── Platforms ───────────────────────────────────────────────────────── */ .platform-row { display: flex; justify-content: center; gap: 14px; flex-wrap: wrap; } .platform-pill { display: flex; align-items: center; gap: 8px; padding: 12px 20px; border-radius: 999px; background: var(--card); border: 1px solid var(--border-soft); font-size: 14px; font-weight: 600; } .platform-pill.platform-soon { border-style: dashed; color: var(--text-secondary); } .soon-tag { font-size: 10.5px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.03em; color: var(--gold-ink); } /* ── About ───────────────────────────────────────────────────────────── */ .about-card { display: flex; gap: 32px; background: var(--card); border: 1px solid var(--border-soft); border-radius: var(--radius-lg); padding: 40px; max-width: 820px; margin: 0 auto; } .about-avatar { flex-shrink: 0; width: 84px; height: 84px; border-radius: 50%; background: linear-gradient(135deg, var(--teal), var(--teal-light)); color: #06201f; display: flex; align-items: center; justify-content: center; font-weight: 800; font-size: 24px; } .about-body { min-width: 0; } .about-name { font-size: 19px; font-weight: 800; } .about-role { font-size: 13.5px; color: var(--text-secondary); margin: 4px 0 18px; } .about-body p { font-size: 15px; color: var(--text-secondary); line-height: 1.7; margin-bottom: 14px; } .about-body p:last-child { margin-bottom: 0; } .about-body a { color: var(--teal-ink); font-weight: 600; } @media (max-width: 640px) { .about-card { flex-direction: column; padding: 28px; gap: 18px; } } /* ── CTA banner ──────────────────────────────────────────────────────── */ .cta-banner { background: linear-gradient(135deg, rgba(14, 149, 148, 0.16), rgba(255, 143, 117, 0.1)); border: 1px solid var(--border-soft); border-radius: var(--radius-lg); padding: 56px 40px; text-align: center; } .cta-banner h2 { font-size: 30px; margin-bottom: 14px; } .cta-banner p { color: var(--text-secondary); font-size: 15.5px; max-width: 480px; margin: 0 auto 28px; } /* ── Footer ──────────────────────────────────────────────────────────── */ footer { border-top: 1px solid var(--border-soft); padding: 52px 0 40px; } .footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 32px; margin-bottom: 40px; } .footer-col h4 { font-size: 12.5px; text-transform: uppercase; letter-spacing: 0.04em; color: var(--text-tertiary); margin: 0 0 14px; } .footer-col a { display: block; font-size: 13.75px; color: var(--text-secondary); padding: 6px 0; } .footer-col a:hover { color: var(--text-primary); } .footer-bottom { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 10px; border-top: 1px solid var(--border-soft); padding-top: 24px; font-size: 12.5px; color: var(--text-tertiary); } /* ── Reveal-on-scroll ────────────────────────────────────────────────── */ .reveal { opacity: 0; transform: translateY(14px); transition: opacity 0.55s ease, transform 0.55s ease; } .reveal.in { opacity: 1; transform: none; } /* ── Responsive ──────────────────────────────────────────────────────── */ @media (max-width: 900px) { .feature-grid, .steps { grid-template-columns: repeat(2, 1fr); } .footer-grid { grid-template-columns: repeat(2, 1fr); } } @media (max-width: 720px) { .nav-links, .nav-cta .btn-ghost { display: none; } .nav-toggle { display: block; } .hero h1 { font-size: 36px; } .feature-grid, .steps { grid-template-columns: 1fr; } .footer-grid { grid-template-columns: 1fr; gap: 24px; } }