/*  TennisApp — the site, in the app's own tokens.
    Colours are uicomponents/ui/res/values/colors_primitives.xml by name; type is Poppins at the
    app's weights. One stylesheet, no framework: the page is one screen's worth of ideas. */

:root {
  --navy-900: #050C16;
  --navy-850: #0F172A;
  --navy-800: #0A1524;
  --navy-700: #111827;
  --navy-600: #1D2432;
  --navy-500: #232832;
  --slate-700: #1F2937;
  --lime-400: #B4CE14;
  --lime-600: #91A80F;
  --lime-900: #414E12;
  --ball: #B8E24A;
  --brass-300: #C4873A;
  --blue-500: #3B82F6;
  --off-white: #F7F7F7;
  --text: #FFFFFF;
  --text-2: rgba(255,255,255,.75);
  --text-3: rgba(255,255,255,.6);
  --hairline: rgba(255,255,255,.10);
  --red-500: #E5484D;
  --green-500: #17B26A;

  --bg: var(--navy-900);
  --surface: var(--navy-800);
  --card: var(--navy-700);
  --border: var(--slate-700);
  --accent: var(--lime-400);

  --font: "Poppins", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --wrap: 1180px;
  --gutter: clamp(16px, 4vw, 32px);
  --radius: 24px;
  --radius-sm: 14px;
  --ease-out: cubic-bezier(.25,.46,.45,.94);
  --ease-emph: cubic-bezier(.16,.72,.28,1);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img, svg { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
button { font: inherit; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 6px; }
.wrap { width: min(var(--wrap), 100% - 2 * var(--gutter)); margin-inline: auto; }
.skip {
  position: absolute; left: 16px; top: -60px; z-index: 100;
  background: var(--accent); color: var(--navy-900); padding: 10px 14px; border-radius: 999px; font-weight: 600;
}
.skip:focus { top: 16px; }

/* ---------- Type ---------- */
.eyebrow {
  margin: 0 0 14px;
  font-size: 13px; font-weight: 600; letter-spacing: .12em; text-transform: uppercase;
  color: var(--accent);
}
.display {
  margin: 0;
  font-weight: 700; letter-spacing: -.02em; line-height: 1.02;
  font-size: clamp(42px, 7.2vw, 78px);
  text-wrap: balance;
}
.display--sm { font-size: clamp(34px, 5vw, 52px); }
.display > span { display: block; }
.display__accent { color: var(--accent); }
.h2 {
  margin: 0 0 18px;
  font-weight: 700; letter-spacing: -.02em; line-height: 1.1;
  font-size: clamp(28px, 4.2vw, 46px);
  max-width: 22ch; text-wrap: balance;
}
.h3 { margin: 0 0 10px; font-size: 22px; font-weight: 600; letter-spacing: -.01em; }
.link { color: var(--accent); font-weight: 600; }
.link:hover { text-decoration: underline; text-underline-offset: 4px; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  border-radius: 999px; border: 1px solid transparent;
  font-weight: 600; line-height: 1; white-space: nowrap; cursor: pointer;
  transition: transform .18s var(--ease-out), background-color .18s, border-color .18s, color .18s;
}
.btn:active { transform: translateY(1px) scale(.99); }
.btn--primary { background: var(--accent); color: var(--navy-900); }
.btn--primary:hover { background: #C6E01C; }
.btn--ghost { background: transparent; color: var(--text); border-color: var(--border); }
.btn--ghost:hover { border-color: rgba(255,255,255,.35); }
.btn--lg { padding: 18px 28px; font-size: 16px; }
.btn--sm { padding: 12px 20px; font-size: 14px; }

/* ---------- Nav ---------- */
.nav {
  position: sticky; top: 0; z-index: 50;
  background: color-mix(in srgb, var(--navy-900) 72%, transparent);
  backdrop-filter: saturate(140%) blur(14px);
  -webkit-backdrop-filter: saturate(140%) blur(14px);
  border-bottom: 1px solid transparent;
  transition: border-color .3s;
}
.nav.is-scrolled, .nav--solid { border-bottom-color: var(--hairline); }
.nav__row { display: flex; align-items: center; gap: 28px; height: 72px; }
.brand { display: inline-flex; align-items: center; gap: 10px; font-weight: 700; font-size: 18px; letter-spacing: -.01em; }
.brand svg { width: 34px; height: 34px; }
.nav__links { display: flex; gap: 26px; margin-left: auto; font-size: 15px; color: var(--text-2); }
.nav__links a { transition: color .15s; }
.nav__links a:hover { color: var(--text); }
.nav__lang { color: var(--text-3); padding-left: 22px; border-left: 1px solid var(--hairline); }
.nav__burger {
  display: none; margin-left: auto; width: 44px; height: 44px; border: 0; background: transparent; cursor: pointer;
  flex-direction: column; justify-content: center; align-items: center; gap: 6px;
}
.nav__burger span { display: block; width: 22px; height: 2px; background: var(--text); border-radius: 2px; transition: transform .25s, opacity .25s; }
.nav__burger[aria-expanded="true"] span:first-child { transform: translateY(4px) rotate(45deg); }
.nav__burger[aria-expanded="true"] span:last-child { transform: translateY(-4px) rotate(-45deg); }
.nav__mobile { display: none; }
.nav__mobile:not([hidden]) {
  display: flex; flex-direction: column; gap: 4px;
  padding: 8px var(--gutter) 20px; border-top: 1px solid var(--hairline);
}
.nav__mobile a { padding: 12px 4px; font-size: 17px; color: var(--text-2); }
.nav__mobile .btn { margin-top: 12px; color: var(--navy-900); padding: 16px 24px; }

/* ---------- Hero ---------- */
.hero { position: relative; padding: clamp(48px, 8vw, 96px) 0 0; overflow: hidden; }
.hero__glow {
  position: absolute; inset: -20% -10% auto; height: 120%; pointer-events: none; z-index: 0;
  background:
    radial-gradient(60% 50% at 78% 30%, rgba(180,206,20,.16), transparent 60%),
    radial-gradient(40% 40% at 20% 80%, rgba(59,130,246,.10), transparent 60%);
  filter: blur(20px);
}
.hero__grid {
  position: relative; z-index: 1;
  display: grid; grid-template-columns: 1.05fr .95fr; align-items: center; gap: clamp(24px, 5vw, 64px);
}
.hero__sub { margin: 26px 0 0; font-size: clamp(17px, 1.6vw, 20px); color: var(--text-2); max-width: 46ch; }
.hero__actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 34px; }
.hero__note { margin: 18px 0 0; font-size: 14px; color: var(--text-3); }
.hero__visual { position: relative; display: grid; place-items: center; min-height: 560px; }
.hero__mark {
  position: absolute; width: min(64%, 390px); aspect-ratio: 1; z-index: 0;
  left: -26%; top: -10%; opacity: .95;
}
.hero__mark svg { width: 100%; height: 100%; overflow: visible; }

/* The phone: a device drawn in CSS, so a screenshot is the whole of the artwork. */
.phone {
  position: relative; margin: 0; z-index: 1;
  width: min(300px, 78vw); aspect-ratio: 1206 / 2622;
  border-radius: 48px; padding: 11px;
  background: linear-gradient(160deg, #1B2432, #0B1220);
  box-shadow:
    0 0 0 1px rgba(255,255,255,.08),
    0 40px 90px -30px rgba(0,0,0,.8),
    0 0 120px -30px rgba(180,206,20,.28);
  transform-style: preserve-3d;
  will-change: transform;
}
.phone__screen { position: relative; width: 100%; height: 100%; border-radius: 38px; overflow: hidden; background: var(--navy-900); }
.phone__screen img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.phone__island {
  position: absolute; top: 22px; left: 50%; transform: translateX(-50%);
  width: 32%; height: 26px; border-radius: 999px; background: #000; z-index: 2;
}
.phone--hero { transform: rotate(-4deg); transition: transform .5s var(--ease-out); }
.phone--hero:hover { transform: rotate(-2deg) translateY(-4px); }

.trust {
  position: relative; z-index: 1;
  list-style: none; margin: clamp(40px, 6vw, 72px) auto 0; padding: 22px 0 0;
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px 28px;
  border-top: 1px solid var(--hairline);
  color: var(--text-2); font-size: 14px;
}
.trust li { display: flex; align-items: center; gap: 10px; }
.trust svg { flex: none; width: 18px; height: 18px; color: var(--accent); }

/* ---------- Sections ---------- */
section { padding: clamp(64px, 9vw, 128px) 0; }
section[id] { scroll-margin-top: 72px; }

/* Showcase: sticky phone, scrolling chapters. */
.show { padding-bottom: 0; }
.show__grid { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(24px, 6vw, 96px); margin-top: 24px; }
.show__steps { display: flex; flex-direction: column; }
.show__step {
  min-height: 80vh; display: flex; flex-direction: column; justify-content: center;
  padding: 24px 0; opacity: .3; transition: opacity .5s var(--ease-out);
}
.show__step.is-active { opacity: 1; }
.show__step h3 { margin: 0 0 12px; font-size: clamp(24px, 3vw, 32px); font-weight: 600; letter-spacing: -.015em; line-height: 1.15; }
.show__step p { margin: 0; font-size: 17px; color: var(--text-2); max-width: 44ch; }
.show__num { display: inline-block; margin-bottom: 18px; font-size: 13px; font-weight: 600; color: var(--accent); letter-spacing: .1em; }
.show__sticky { position: sticky; top: 96px; height: calc(100vh - 120px); display: grid; place-items: center; }
.phone--show { width: min(320px, 36vh * 1206 / 2622 * 1.6, 80vw); }
.phone--show .phone__screen img { opacity: 0; transition: opacity .55s var(--ease-out); }
.phone--show .phone__screen img.is-active, .no-js .phone--show .phone__screen img:first-child { opacity: 1; }
.no-js .show__step { opacity: 1; }
.phone--inline { display: none; }
.show__dots { position: absolute; right: -28px; top: 50%; transform: translateY(-50%); display: flex; flex-direction: column; gap: 8px; list-style: none; margin: 0; padding: 0; }
.show__dots li { width: 6px; height: 6px; border-radius: 50%; background: var(--border); transition: background .3s, transform .3s; }
.show__dots li.is-active { background: var(--accent); transform: scale(1.4); }

/* Feature cards */
.cards {
  list-style: none; margin: 40px 0 0; padding: 0;
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px;
}
.card {
  position: relative; padding: 26px 24px 24px;
  background: var(--card); border: 1px solid var(--border); border-radius: var(--radius);
  transition: transform .3s var(--ease-out), border-color .3s;
  overflow: hidden;
}
.card::after {
  content: ""; position: absolute; inset: 0; pointer-events: none; opacity: 0; transition: opacity .3s;
  background: radial-gradient(240px 160px at var(--mx, 50%) var(--my, 0%), rgba(180,206,20,.14), transparent 70%);
}
.card:hover { transform: translateY(-3px); border-color: rgba(180,206,20,.35); }
.card:hover::after { opacity: 1; }
.card__icon { width: 44px; height: 44px; margin-bottom: 18px; display: grid; place-items: center; border-radius: 12px; background: var(--navy-600); color: var(--accent); }
.card__icon svg { width: 22px; height: 22px; }
.card h3 { margin: 0 0 6px; font-size: 18px; font-weight: 600; }
.card p { margin: 0; color: var(--text-2); font-size: 15px; }

/* How it works */
.how { position: relative; overflow: hidden; }
/* The court sits under the three steps, not behind them: it starts where the text ends and
   fades in from the top, so nothing is read through its lines. */
.how__court {
  position: absolute; left: -2%; right: -2%; top: 58%; bottom: -6%; pointer-events: none; opacity: .5;
  -webkit-mask-image: linear-gradient(to bottom, transparent, #000 35%, #000 85%, transparent);
  mask-image: linear-gradient(to bottom, transparent, #000 35%, #000 85%, transparent);
}
.how__court svg { width: 100%; height: 100%; }
.how .wrap { position: relative; }
.steps { list-style: none; margin: 40px 0 0; padding: 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; counter-reset: step; }
.step { padding: 28px 0 0; border-top: 1px solid var(--hairline); }
.step__n { display: block; font-size: 13px; font-weight: 600; letter-spacing: .12em; color: var(--accent); margin-bottom: 14px; }
.step h3 { margin: 0 0 8px; font-size: 20px; font-weight: 600; }
.step p { margin: 0; color: var(--text-2); font-size: 15px; }

/* Independence */
.independent { padding-top: 0; }
.independent__box {
  display: grid; grid-template-columns: auto 1fr; gap: 22px; align-items: start;
  padding: 28px; border: 1px solid var(--border); border-radius: var(--radius); background: var(--surface);
}
.independent__mark { width: 48px; height: 48px; color: var(--accent); }
.independent p { margin: 0 0 12px; color: var(--text-2); }

/* Download */
.download__box {
  position: relative; overflow: hidden;
  display: grid; grid-template-columns: 1.2fr .8fr; align-items: center; gap: 24px;
  padding: clamp(32px, 5vw, 64px);
  border-radius: 32px; background: linear-gradient(135deg, #0F1B2E, var(--navy-800));
  border: 1px solid var(--border);
}
.download__box::before {
  content: ""; position: absolute; inset: auto -10% -60% auto; width: 60%; aspect-ratio: 1; border-radius: 50%;
  background: radial-gradient(circle, rgba(180,206,20,.22), transparent 60%); filter: blur(10px); pointer-events: none;
}
.download__copy p { color: var(--text-2); margin: 0 0 24px; font-size: 17px; }
.download__art { position: relative; width: min(100%, 300px); justify-self: center; }
.download__art svg { width: 100%; }
.badges { display: flex; flex-wrap: wrap; gap: 12px; }
.badge {
  display: inline-flex; align-items: center; gap: 10px; height: 56px; padding: 0 18px 0 14px;
  border-radius: 12px; background: #000; color: #fff; border: 1px solid rgba(255,255,255,.18);
  transition: transform .18s var(--ease-out), border-color .18s;
}
.badge:hover { transform: translateY(-2px); border-color: rgba(255,255,255,.4); }
.badge svg { width: 26px; height: 26px; flex: none; }
.badge span { display: flex; flex-direction: column; line-height: 1.05; }
.badge small { font-size: 10px; letter-spacing: .02em; opacity: .8; }
.badge b { font-size: 16px; font-weight: 600; }
.badge--soon { opacity: .55; cursor: default; }
.badge--soon:hover { transform: none; border-color: rgba(255,255,255,.18); }

/* Contact */
.contact__grid { display: grid; grid-template-columns: .9fr 1.1fr; gap: clamp(24px, 6vw, 80px); align-items: start; }
.contact__copy p { color: var(--text-2); font-size: 17px; margin: 0 0 14px; }
.contact__privacy { font-size: 14px !important; color: var(--text-3) !important; }
.form { display: grid; gap: 16px; padding: clamp(20px, 3vw, 32px); border-radius: var(--radius); background: var(--card); border: 1px solid var(--border); }
.form__hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.field { display: grid; gap: 8px; }
.field label { font-size: 14px; color: var(--text-2); }
.field input, .field textarea {
  width: 100%; padding: 14px 18px; border-radius: var(--radius-sm);
  background: var(--navy-850); border: 1px solid var(--border); color: var(--text);
  font: inherit; font-size: 16px; transition: border-color .15s, box-shadow .15s;
}
.field textarea { resize: vertical; min-height: 140px; }
.field input:focus, .field textarea:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px rgba(180,206,20,.18); }
.field.is-invalid input, .field.is-invalid textarea { border-color: var(--red-500); }
.form__status { margin: 0; min-height: 1.4em; font-size: 14px; color: var(--red-500); }
.form__status.is-ok { color: var(--green-500); }
.form__done { display: grid; gap: 4px; padding: 18px 20px; border-radius: var(--radius-sm); background: rgba(23,178,106,.12); border: 1px solid rgba(23,178,106,.4); }
.form__done[hidden] { display: none; }
.form__done strong { font-size: 18px; }
.form__done span { color: var(--text-2); }
.form.is-sent .field, .form.is-sent button, .form.is-sent .form__status { display: none; }

/* Footer */
.footer { border-top: 1px solid var(--hairline); padding: 56px 0 28px; color: var(--text-2); font-size: 14px; }
.footer__grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1fr; gap: 32px; }
.footer__grid a { display: block; padding: 5px 0; }
.footer__grid a:hover { color: var(--text); }
.footer__brand p { max-width: 36ch; margin: 14px 0 0; }
.footer__h { margin: 0 0 8px; font-size: 12px; font-weight: 600; letter-spacing: .12em; text-transform: uppercase; color: var(--text-3); }
.footer__h--gap { margin-top: 20px; }
.footer__foot { display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; margin-top: 40px; padding-top: 20px; border-top: 1px solid var(--hairline); color: var(--text-3); font-size: 13px; }

/* Prose pages */
.prose-wrap { padding: clamp(40px, 6vw, 80px) 0 clamp(64px, 9vw, 120px); }
.prose { max-width: 720px; }
.prose__head { margin-bottom: 32px; }
.prose__updated { margin: 12px 0 0; color: var(--text-3); font-size: 14px; }
.prose .lede { font-size: 20px; color: var(--text-2); }
.prose h2 { margin: 36px 0 10px; font-size: 22px; font-weight: 600; letter-spacing: -.01em; }
.prose p, .prose li { color: var(--text-2); font-size: 16.5px; }
.prose ul, .prose ol { padding-left: 22px; }
.prose li { margin: 6px 0; }
.prose a { color: var(--accent); }
.prose .badges { margin-top: 28px; }

/* ---------- Motion ---------- */
/* Nothing is hidden until the script has measured it as below the fold — so a browser that never
   runs the observer, a page opened at an anchor, or a reader who arrives before the script, all
   see a finished page rather than an empty one. */
.reveal { transition: opacity .7s var(--ease-out), transform .7s var(--ease-out); transition-delay: var(--d, 0s); }
.js .reveal.will-reveal { opacity: 0; transform: translateY(18px); }
.js .reveal.will-reveal.is-in { opacity: 1; transform: none; }

/* The mark flying in: the app's own numbers — 0.95s, eased out, the trail after the ball. */
.js .mark-fly #ball, .js .mark-fly #silhouette_one, .js .mark-fly #silhouette_two, .js .mark-fly #silhouette_three {
  opacity: 0;
  offset-rotate: 0deg;
  animation: fly .95s var(--ease-out) forwards, fade .19s linear forwards;
}
.js .mark-fly #ball { offset-path: path("M-470 360 C-451.859 335.369 -434.56 313.231 -417.181 292.575 C-399.892 272.03 -383.388 253.99 -367.259 237.632 C-335.387 205.314 -305.636 180.287 -279.831 160.473 C-254.317 140.888 -230.385 124.7 -210.904 112.184 C-193.408 101.543 -175.912 90.901 -158.416 80.259 C-135.08 67.547 -111.745 54.836 -88.409 42.124 C-74.699 35.285 -60.989 28.447 -47.279 21.608 C-31.519 14.405 -15.76 7.203 0 0"); }
.js .mark-fly #silhouette_two { offset-path: path("M-470 365 C-451.86 340.028 -434.561 317.583 -417.182 296.64 C-399.893 275.809 -383.389 257.518 -367.26 240.933 C-335.388 208.166 -305.636 182.791 -279.831 162.702 C-254.318 142.845 -230.386 126.433 -210.904 113.743 C-193.408 102.953 -175.912 92.163 -158.416 81.374 C-135.08 68.486 -111.745 55.598 -88.409 42.709 C-74.699 35.776 -60.989 28.842 -47.279 21.908 C-31.519 14.605 -15.76 7.303 0 0"); animation-delay: .07s; }
.js .mark-fly #silhouette_one { offset-path: path("M-430 330 C-413.404 307.422 -397.577 287.129 -381.676 268.194 C-365.859 249.361 -350.761 232.825 -336.003 217.829 C-306.844 188.205 -279.624 165.263 -256.015 147.1 C-232.673 129.147 -210.778 114.309 -192.955 102.836 C-176.948 93.081 -160.941 83.326 -144.934 73.571 C-123.584 61.919 -102.235 50.266 -80.885 38.614 C-68.342 32.345 -55.798 26.076 -43.255 19.807 C-28.837 13.205 -14.418 6.602 0 0"); animation-delay: .13s; }
.js .mark-fly #silhouette_three { offset-path: path("M-510 400 C-490.315 372.632 -471.544 348.035 -452.686 325.084 C-433.926 302.257 -416.018 282.212 -398.516 264.035 C-363.931 228.128 -331.649 200.32 -303.646 178.304 C-275.962 156.542 -249.993 138.556 -228.853 124.649 C-209.868 112.825 -190.883 101.001 -171.898 89.177 C-157.524 80.963 -143.149 72.749 -128.775 64.535 C-117.828 58.625 -106.881 52.715 -95.934 46.805 C-81.057 39.206 -66.179 31.607 -51.302 24.009 C-34.202 16.006 -17.101 8.003 0 0"); animation-delay: .19s; }
@keyframes fly { from { offset-distance: 0%; } to { offset-distance: 100%; } }
@keyframes fade { from { opacity: 0; } to { opacity: 1; } }
@supports not (offset-path: path("M0 0")) {
  .js .mark-fly #ball, .js .mark-fly #silhouette_one, .js .mark-fly #silhouette_two, .js .mark-fly #silhouette_three { animation: fade .6s var(--ease-out) forwards; }
}
.mark-fly.is-still #ball, .mark-fly.is-still #silhouette_one, .mark-fly.is-still #silhouette_two, .mark-fly.is-still #silhouette_three { animation: none; opacity: 1; offset-path: none; }

/* The court draws itself. */
.how__court path { stroke: rgba(180,206,20,.35); stroke-width: 2; fill: none; stroke-dasharray: 1; stroke-dashoffset: 0; }
.js .how__court.will-draw path { stroke-dashoffset: 1; }
.js .how__court.will-draw.is-in path { animation: draw 2.4s var(--ease-emph) forwards; }
.js .how__court.will-draw.is-in path:nth-child(n+2) { animation-delay: .25s; }
.js .how__court.will-draw.is-in path:nth-child(n+4) { animation-delay: .5s; }
.js .how__court.will-draw.is-in path:nth-child(n+6) { animation-delay: .75s; }
@keyframes draw { to { stroke-dashoffset: 0; } }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .js .reveal { opacity: 1; transform: none; transition: none; }
  .js .mark-fly #ball, .js .mark-fly #silhouette_one, .js .mark-fly #silhouette_two, .js .mark-fly #silhouette_three { animation: none; opacity: 1; offset-path: none; }
  .how__court path { stroke-dashoffset: 0; animation: none !important; }
  .phone, .card, .btn, .badge { transition: none; }
  [data-parallax], [data-tilt] { transform: none !important; }
}

/* ---------- Ambient light ----------
   Two soft lime blooms drifting slowly behind the page, and on a pointer device a third that
   follows the hand. Fixed to the viewport, heavily blurred, and below everything else. */
.ambient { position: fixed; inset: 0; z-index: 0; pointer-events: none; overflow: hidden; }
.ambient span {
  position: absolute; border-radius: 50%; filter: blur(90px); will-change: transform;
  background: radial-gradient(circle, rgba(180,206,20,.30), rgba(180,206,20,0) 62%);
}
.ambient__a { width: 60vmax; height: 60vmax; left: -18vmax; top: -22vmax; animation: driftA 38s ease-in-out infinite alternate; }
.ambient__b { width: 48vmax; height: 48vmax; right: -14vmax; bottom: -20vmax; opacity: .7; animation: driftB 46s ease-in-out infinite alternate; }
.ambient__cursor { width: 44vmax; height: 44vmax; left: 0; top: 0; opacity: 0; transform: translate(-50%, -50%); transition: opacity 1.2s; background: radial-gradient(circle, rgba(180,206,20,.18), rgba(180,206,20,0) 60%); }
.ambient__cursor.is-on { opacity: 1; }
@keyframes driftA { from { transform: translate(0, 0) scale(1); } to { transform: translate(22vmax, 26vmax) scale(1.15); } }
@keyframes driftB { from { transform: translate(0, 0) scale(1.1); } to { transform: translate(-20vmax, -24vmax) scale(.9); } }
.nav, main, .footer { position: relative; z-index: 1; }
@media (prefers-reduced-motion: reduce) {
  .ambient__a, .ambient__b { animation: none; }
  .ambient__cursor { display: none; }
}

/* ---------- Responsive ---------- */
@media (max-width: 1000px) {
  .cards { grid-template-columns: repeat(2, 1fr); }
  .trust { grid-template-columns: repeat(2, 1fr); }
  .footer__grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 860px) {
  .nav__links, .nav__cta { display: none; }
  .nav__burger { display: flex; }
  .hero__grid { grid-template-columns: 1fr; text-align: left; }
  .hero__visual { min-height: 0; margin-top: 12px; }
  .hero__mark { width: 62%; left: -4%; top: -6%; }
  .show__grid { grid-template-columns: 1fr; }
  /* No pinned phone on a narrow screen — it floated over the words and read as broken. Each
     chapter carries its own phone instead, right under its text. */
  .show__sticky { display: none; }
  .show__step { min-height: 0; padding: 40px 0 8px; opacity: 1; }
  .phone--inline { display: block; width: min(240px, 62vw); margin: 28px auto 8px; }
  .steps { grid-template-columns: 1fr; }
  .download__box { grid-template-columns: 1fr; }
  .download__art { display: none; }
  .contact__grid { grid-template-columns: 1fr; }
  .independent__box { grid-template-columns: 1fr; }
}
@media (max-width: 560px) {
  .cards { grid-template-columns: 1fr; }
  .trust { grid-template-columns: 1fr; }
  .footer__grid { grid-template-columns: 1fr; }
  .btn--lg { width: 100%; }
  .hero__actions { flex-direction: column; }
}