:root {
  --bg: #fff;
  --paper: #fafafa;
  --surface: #fff;
  --ink: #050505;
  --muted: #656565;
  --soft: #f3f3f3;
  --line: #dedede;
  --line-strong: #cfcfcf;
  --dark: #050505;
  --dark-muted: #a8a8a8;
  --alert: #e63946;
  --page: 1040px;
  --copy: 760px;
  --font: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
::selection { background: #000; color: #fff; }
::-moz-selection { background: #000; color: #fff; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
body.dark {
  --bg: #050505;
  --paper: #0a0a0a;
  --surface: #0b0b0b;
  --ink: #f7f7f7;
  --muted: #9b9b9b;
  --soft: #151515;
  --line: #282828;
  --line-strong: #3b3b3b;
}
body.dark ::selection { background: #fff; color: #050505; }
body.dark ::-moz-selection { background: #fff; color: #050505; }

a { color: inherit; text-decoration: none; }
button, input, textarea { font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }

.page-width { width: min(calc(100% - 80px), var(--page)); margin-inline: auto; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  min-height: 60px;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 24px;
  padding: 12px 40px;
  border-top: 1px solid var(--ink);
  border-bottom: 1px solid var(--line);
  background: color-mix(in srgb, var(--bg) 90%, transparent);
  backdrop-filter: blur(18px);
}
.brand { display: inline-flex; align-items: center; gap: 10px; font-size: 16px; font-weight: 700; letter-spacing: -.02em; }
.brand-mark { width: 24px; height: 24px; display: block; object-fit: contain; flex: 0 0 auto; }
.top-nav { display: flex; gap: 24px; justify-content: center; font-size: 11px; color: var(--muted); }
.top-nav a:hover, .footer-links a:hover, .plain-link:hover, .light-link:hover { color: var(--ink); }
.top-actions { display: flex; justify-content: flex-end; align-items: center; gap: 9px; }
.theme-button {
  width: 39px; height: 39px; border: 1px solid var(--line); border-radius: 50%; background: var(--surface); color: var(--ink); cursor: pointer; display: grid; place-items: center; padding: 0; font-size: 16px;
}
.home-button { border: 1px solid var(--line); border-radius: 999px; padding: 9px 14px; font-size: 11px; }
.home-button:hover { border-color: var(--ink); }

.hero { min-height: 720px; display: grid; grid-template-columns: 1.08fr .92fr; align-items: center; gap: 80px; padding: 88px 0 90px; }
.hero-copy { max-width: 470px; }
.eyebrow-line { display: inline-flex; align-items: center; gap: 10px; font-size: 10px; line-height: 1; letter-spacing: .18em; font-weight: 800; text-transform: uppercase; }
.eyebrow-line > span:first-child { width: 28px; height: 1px; background: var(--muted); }
.hero h1, .section h2, .screen-intro h3, .final-cta h2, .contact-shell h1, .contact-shell h2 { letter-spacing: -.06em; }
.hero h1 { font-size: clamp(54px, 6.8vw, 92px); line-height: .93; max-width: 8.8ch; margin: 24px 0 20px; }
.hero-lede { font-size: 15px; line-height: 1.65; max-width: 520px; color: var(--muted); margin: 0; }
.hero-actions { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; margin-top: 28px; }
.hero-meta { margin-top: 14px; display: inline-flex; align-items: center; gap: 9px; color: var(--muted); font-size: 9px; font-weight: 800; letter-spacing: .14em; }
.hero-meta > span { width: 3px; height: 3px; border-radius: 50%; background: var(--muted); }
.dark-button, .light-button { display: inline-flex; align-items: center; justify-content: center; gap: 9px; border: 1px solid var(--ink); background: var(--ink); color: var(--bg); border-radius: 999px; padding: 12px 17px; font-size: 11px; font-weight: 800; transition: transform .2s ease, box-shadow .2s ease; }
.dark-button:hover, .light-button:hover { transform: translateY(-1px); box-shadow: 0 8px 20px rgba(0,0,0,.12); }
.plain-link, .light-link { font-size: 11px; font-weight: 700; color: var(--muted); }
.hero-phone-wrap { min-height: 510px; display: grid; place-items: center; }
.phone { margin: 0; position: relative; width: min(100%, 250px); border: 0; border-radius: 0; overflow: visible; background: transparent; box-shadow: none; }
.phone::before { display: none; }
.phone img { display: block; width: 100%; height: auto; aspect-ratio: auto; object-fit: contain; background: transparent; }
.hero-phone { width: 255px; transform: none !important; }
.hero-phone-wrap::after { content: ""; position: absolute; width: 430px; height: 430px; border-radius: 50%; border: 1px solid var(--line); opacity: .5; pointer-events: none; }

.stats-strip { display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.stats-strip > div { padding: 24px 30px; border-right: 1px solid var(--line); }
.stats-strip > div:last-child { border-right: 0; }
.stats-strip strong { display: block; font-size: 15px; letter-spacing: -.03em; margin-bottom: 5px; }
.stats-strip span { font-size: 8px; letter-spacing: .16em; color: var(--muted); }

.section-compact { padding: 112px 0 68px; }
.section-intro { margin-top: 20px; margin-bottom: 48px; }
.two-col { display: grid; grid-template-columns: 1.05fr .95fr; gap: 80px; align-items: end; }
.section h2 { font-size: clamp(40px, 4.6vw, 62px); line-height: .97; margin: 0; }
.section-intro p, .balance-layout p, .consistency-copy p, .privacy-copy p, .details-section p { font-size: 14px; line-height: 1.7; color: var(--muted); margin: 0; max-width: 510px; }

.screen-showcase { padding: 0 0 124px; }
.screen-intro { display: grid; grid-template-columns: 1.2fr .8fr; gap: 50px; align-items: end; margin: 20px 0 45px; }
.screen-intro h3 { font-size: clamp(34px, 4vw, 54px); line-height: .98; margin: 0; }
.screen-intro h3 em { font-weight: 500; font-style: italic; }
.screen-intro p { color: var(--muted); font-size: 13px; line-height: 1.6; margin: 0; }
.screen-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.screen-card { min-height: 590px; padding: 28px 28px 24px; border: 1px solid var(--line); border-radius: 18px; background: var(--surface); overflow: hidden; }
.screen-card-dark { background: #242424; border-color: #242424; color: white; }
.screen-card-head { display: flex; justify-content: space-between; color: var(--muted); font-size: 9px; font-weight: 800; letter-spacing: .16em; text-transform: uppercase; }
.screen-card-dark .screen-card-head { color: #aaa; }
.screen-card h4 { font-size: 27px; line-height: 1.02; letter-spacing: -.045em; margin: 18px 0 10px; max-width: 12ch; }
.screen-card-description { color: var(--muted); font-size: 11px; line-height: 1.55; margin: 0; max-width: 31ch; }
.screen-card-dark .screen-card-description { color: #b7b7b7; }
.screen-card .phone-card { width: min(62%, 250px); margin: auto auto 0; box-shadow: 0 20px 35px rgba(0,0,0,.12); }



.balance-section { padding: 110px 0; }
.balance-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 80px; margin-top: 25px; align-items: center; }
.balance-layout > div:first-child { display: grid; gap: 22px; }
.balance-box { background: var(--soft); border: 1px solid var(--line); border-radius: 18px; padding: 34px; }
.balance-kicker { font-size: 9px; letter-spacing: .16em; color: var(--muted); font-weight: 800; }
.balance-value { font-size: clamp(40px, 5vw, 68px); font-weight: 800; letter-spacing: -.06em; margin: 12px 0 18px; }
.balance-formula { padding-top: 16px; border-top: 1px solid var(--line); font-size: 10px; line-height: 1.6; color: var(--muted); letter-spacing: .03em; }

.consistency-section { padding: 116px 0; display: grid; grid-template-columns: .95fr 1.05fr; gap: 90px; align-items: center; }
.consistency-copy { display: grid; gap: 22px; }
.month-visual { min-height: 500px; display: grid; place-items: center; position: relative; background: transparent; }
.month-phone { width: min(62%, 270px); }
.month-phone img { display: block; width: 100%; height: auto; background: transparent; filter: drop-shadow(0 24px 28px rgba(0,0,0,.10)); }

.steps-section { padding: 116px 0; }
.steps-section h2 { margin: 18px 0 42px; }
.steps-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.steps-grid article { border: 1px solid var(--line); border-radius: 16px; padding: 24px; min-height: 180px; }
.steps-grid article > span { color: var(--muted); font-size: 9px; letter-spacing: .14em; font-weight: 800; }
.steps-grid h3 { font-size: 17px; letter-spacing: -.03em; margin: 34px 0 8px; }
.steps-grid p { color: var(--muted); font-size: 11px; line-height: 1.55; margin: 0; }

.privacy-section { padding: 120px 0; border-top: 1px solid var(--line); }
.privacy-layout { display: grid; grid-template-columns: minmax(0, 1fr) minmax(340px, .85fr); gap: 72px; align-items: center; }
.privacy-copy { max-width: 660px; }
.privacy-copy h2 { margin: 18px 0 22px; }
.privacy-pills { margin-top: 28px; display: grid; gap: 8px; }
.privacy-pills span { border: 1px solid var(--line); border-radius: 999px; padding: 11px 14px; font-size: 10px; color: var(--muted); width: fit-content; }
.privacy-globe { position: relative; width: min(100%, 500px); aspect-ratio: 1; justify-self: end; display: grid; place-items: center; overflow: visible; }
.privacy-globe::before { content: ""; position: absolute; inset: 12%; border: 1px solid var(--line); border-radius: 50%; opacity: .55; pointer-events: none; }
.privacy-globe canvas { display: block; width: 100%; height: 100%; max-width: 500px; max-height: 500px; background: transparent !important; }

 .details-section { padding: 120px 0 126px; }
.engine-intro { max-width: 760px; margin: 0 auto 56px; text-align: center; display: grid; justify-items: center; gap: 0; }
.engine-intro h2 { margin: 18px 0 18px; }
.engine-intro > p { margin: 0; max-width: 54ch; color: var(--muted); font-size: 13px; line-height: 1.7; }
.engine-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.engine-item { min-height: 248px; padding: 28px 24px 30px; border-right: 1px solid var(--line); display: flex; flex-direction: column; align-items: flex-start; text-align: left; }
.engine-item:last-child { border-right: 0; }
.engine-number { color: var(--muted); font-size: 9px; font-weight: 800; letter-spacing: .14em; }
.engine-item h3 { font-size: clamp(22px, 2.3vw, 29px); line-height: 1.02; letter-spacing: -.045em; margin: 54px 0 12px; max-width: 12ch; }
.engine-item p { margin: 0; color: var(--muted); font-size: 11px; line-height: 1.62; max-width: 27ch; }
.engine-flow { margin-top: 24px; display: flex; justify-content: center; align-items: center; gap: 12px; color: var(--muted); font-size: 9px; font-weight: 800; letter-spacing: .14em; }
.engine-flow b { font-weight: 500; color: var(--line-strong); }

.compare-section { padding: 112px 0; }
.compare-section h2 { margin: 18px 0 42px; }
.comparison-table { border: 1px solid var(--line); border-radius: 16px; overflow: hidden; }
.comparison-row { display: grid; grid-template-columns: 1.2fr 1fr 1fr; border-top: 1px solid var(--line); font-size: 11px; }
.comparison-row:first-child { border-top: 0; }
.comparison-row span { padding: 14px 16px; border-right: 1px solid var(--line); }
.comparison-row span:last-child { border-right: 0; }
.comparison-head { background: var(--soft); color: var(--muted); font-size: 8px; letter-spacing: .14em; font-weight: 800; }

.faq-section { padding: 112px 0 126px; max-width: var(--copy); }
.faq-section h2 { margin: 18px 0 34px; }
.faq-list { border-top: 1px solid var(--line); }
.faq-list details { border-bottom: 1px solid var(--line); }
.faq-list summary { list-style: none; cursor: pointer; display: flex; justify-content: space-between; gap: 20px; padding: 18px 0; font-size: 12px; font-weight: 700; }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary::after { content: "+"; color: var(--muted); }
.faq-list details[open] summary::after { content: "−"; }
.faq-list p { margin: 0 0 18px; font-size: 11px; color: var(--muted); line-height: 1.6; }

.final-cta-section { padding: 10px 0 84px; }
.final-cta { min-height: 520px; background: var(--dark); color: white; padding: 42px 30px 48px; display: grid; place-items: center; text-align: center; border-radius: 28px; overflow: hidden; }
.final-cta-content { width: min(100%, 760px); display: grid; justify-items: center; }
.final-cta h2 { font-size: clamp(52px, 7.5vw, 86px); line-height: .94; max-width: 10ch; margin: 52px 0 20px; }
.final-cta h2 em { font-weight: 500; }
.final-cta-content > p { margin: 0; max-width: 44ch; color: #aaa; font-size: 13px; line-height: 1.6; }
.final-cta-actions { display: flex; align-items: center; justify-content: center; gap: 15px; margin-top: 30px; flex-wrap: wrap; }
.final-text-link { font-size: 11px; font-weight: 700; color: #bdbdbd; transition: color .2s ease; }
.final-text-link:hover { color: #fff; }
.final-link-divider { width: 1px; height: 14px; background: #4a4a4a; }
.light-line { color: #aaa; }
.light-line > span:first-child { background: #777; }

.site-footer { padding: 52px 0 0; border-top: 1px solid var(--line); overflow: hidden; position: relative; }
.footer-main { display: grid; grid-template-columns: 1.2fr 1fr 1fr; gap: 40px; }
.footer-brand { font-size: 16px; }
.footer-main p { max-width: 32ch; color: var(--muted); font-size: 15px; line-height: 1.6; margin: 14px 0 0; }
.footer-links { display: flex; flex-direction: column; gap: 13px; color: var(--muted); font-size: 14px; line-height: 1.45; }
.footer-links a { width: fit-content; }
.footer-bottom { display: flex; justify-content: space-between; gap: 20px; border-top: 1px solid var(--line); padding-top: 20px; margin-top: 58px; color: var(--muted); font-size: 12px; line-height: 1.45; }
.footer-ghost {
  margin-top: 28px;
  height: clamp(116px, 15vw, 180px);
  display: flex;
  align-items: flex-end;
  justify-content: center;
  overflow: hidden;
  pointer-events: none;
  user-select: none;
  color: color-mix(in srgb, var(--muted) 62%, transparent);
  font-size: clamp(120px, 18vw, 250px);
  font-weight: 800;
  line-height: .72;
  letter-spacing: -.095em;
  filter: none;
  opacity: .42;
  transform: translateY(34%);
  white-space: nowrap;
}

/* Contact page */
.contact-main { padding: 42px 0 72px; }
.contact-shell { width: min(calc(100% - 64px), 760px); margin: 0 auto; }
.contact-shell h1 { font-size: clamp(54px, 6vw, 80px); line-height: .94; margin: 26px 0 22px; }
.contact-lede { max-width: 730px; margin: 0; color: var(--ink); font-size: 15px; line-height: 1.65; }
.contact-grid { display: grid; grid-template-columns: .82fr 1.18fr; gap: 24px; margin-top: 44px; }
.contact-card { border: 1px solid var(--line); border-radius: 18px; background: var(--surface); box-shadow: 0 14px 30px rgba(0,0,0,.055); }
.contact-info { padding: 30px; }
.mail-icon { width: 44px; height: 44px; border: 1px solid var(--line); border-radius: 50%; display: grid; place-items: center; font-size: 18px; margin-bottom: 22px; }
.contact-info h2 { font-size: 19px; margin: 0 0 7px; }
.contact-info p { font-size: 12px; line-height: 1.6; color: var(--ink); margin: 0 0 10px; }
.email-link { display: inline-block; margin-bottom: 23px; font-size: 12px; text-decoration: underline; text-underline-offset: 3px; }
.contact-copy + .contact-copy { margin-top: 18px; }
.contact-form-card { padding: 34px; }
#contactForm { display: grid; gap: 10px; }
#contactForm label { margin-top: 1px; font-size: 10px; letter-spacing: .14em; font-weight: 800; }
#contactForm input, #contactForm textarea { width: 100%; border: 1px solid var(--line); border-radius: 999px; padding: 15px 16px; background: var(--bg); color: var(--ink); outline: none; font-size: 12px; }
#contactForm textarea { border-radius: 17px; min-height: 140px; resize: vertical; }
#contactForm input:focus, #contactForm textarea:focus { border-color: var(--ink); }
#contactForm input::placeholder, #contactForm textarea::placeholder { color: #999; }
#contactForm label:nth-of-type(2), #contactForm label:nth-of-type(3) { margin-top: 6px; }
.form-submit { width: fit-content; margin-top: 10px; }
.form-note { margin: 2px 0 0; color: var(--muted); font-size: 9px; line-height: 1.5; }

.subpage .site-footer { width: min(calc(100% - 80px), var(--page)); margin-inline: auto; }

.reveal { opacity: 0; transform: translateY(14px); transition: opacity .55s ease, transform .7s cubic-bezier(.2,.75,.25,1); }
.reveal.visible { opacity: 1; transform: translateY(0); }
.delay-1 { transition-delay: 80ms; }

@media (max-width: 900px) {
  .page-width { width: min(calc(100% - 48px), var(--page)); }
  .site-header { padding-inline: 24px; grid-template-columns: 1fr auto; }
  .top-nav { display: none; }
  .top-actions { justify-self: end; }
  .hero { grid-template-columns: 1fr .7fr; gap: 40px; }
  .hero-phone-wrap { min-height: 420px; }
  .hero-phone-wrap::after { width: 320px; height: 320px; }
  .hero-phone { width: 220px; }
  .screen-intro, .balance-layout, .consistency-section, .two-col, .privacy-layout { grid-template-columns: 1fr; gap: 36px; }
  .screen-card { min-height: 540px; }
  .steps-grid { grid-template-columns: 1fr; }
  .footer-main { grid-template-columns: 1fr 1fr; }
  .privacy-globe { justify-self: center; width: min(100%, 460px); }
  .engine-grid { grid-template-columns: 1fr 1fr; }
  .engine-item:nth-child(2) { border-right: 0; }
  .engine-item:nth-child(n+3) { border-top: 1px solid var(--line); }
  .footer-main > div:first-child { grid-column: 1 / -1; }
}

@media (max-width: 640px) {
  .page-width { width: min(calc(100% - 28px), var(--page)); }
  .site-header { min-height: 58px; padding: 10px 14px; }
  .brand { font-size: 14px; }
  .brand-mark { width: 22px; height: 22px; }
  .home-button { padding: 9px 12px; }
  .hero { min-height: auto; display: flex; flex-direction: column; align-items: stretch; gap: 26px; padding: 62px 0 58px; }
  .hero h1 { font-size: 58px; }
  .hero-meta { font-size: 8px; }
  .hero-phone-wrap { min-height: 365px; }
  .hero-phone-wrap::after { width: 280px; height: 280px; }
  .hero-phone { width: 200px; }
  .stats-strip { grid-template-columns: 1fr 1fr; }
  .stats-strip > div { padding: 17px 16px; }
  .stats-strip > div:nth-child(2) { border-right: 0; }
  .stats-strip > div:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
  .section-compact, .screen-showcase, .balance-section, .consistency-section, .steps-section, .privacy-section, .details-section, .compare-section, .faq-section { padding-top: 78px; padding-bottom: 78px; }
  .section h2, .screen-intro h3 { font-size: 44px; }
  .screen-grid { grid-template-columns: 1fr; }
  .screen-card { min-height: 500px; padding: 24px; }
  .screen-card h4 { font-size: 24px; }
  .screen-card-description { max-width: 34ch; }
  .screen-card .phone-card { width: min(68%, 220px); max-width: 220px; }
  .feature-row { grid-template-columns: 1fr; gap: 7px; padding: 14px 0; }
  .feature-head { display: none; }
  .balance-box { padding: 24px; }
  .balance-value { font-size: 50px; }
  .consistency-section { gap: 30px; }
  .privacy-globe { width: min(100%, 360px); }
  .month-visual { min-height: 430px; }
  .engine-grid { grid-template-columns: 1fr; }
  .engine-item, .engine-item:nth-child(2), .engine-item:nth-child(n+3) { border-right: 0; border-top: 1px solid var(--line); }
  .engine-item:first-child { border-top: 0; }
  .engine-item { min-height: 0; padding: 24px 0 26px; }
  .engine-item h3 { margin-top: 28px; max-width: none; }
  .engine-item p { max-width: 36ch; }
  .engine-flow { flex-wrap: wrap; gap: 9px; }
  .month-phone { width: min(72%, 230px); }
  .detail-list > div { grid-template-columns: 28px 1fr; }
  .comparison-row { grid-template-columns: 1fr 1fr; }
  .comparison-row span:last-child { display: none; }
  .comparison-head span:last-child { display: none; }
  .final-cta-section { padding-bottom: 58px; }
  .final-cta { min-height: 430px; padding: 30px 20px 34px; border-radius: 24px; }
  .final-cta h2 { font-size: 58px; margin: 40px 0 16px; }
  .final-cta-content > p { font-size: 12px; }
  .final-cta-actions { gap: 10px 12px; margin-top: 26px; }
  .footer-main { grid-template-columns: 1fr; gap: 24px; }
  .footer-main > div:first-child { grid-column: auto; }
  .footer-main p { font-size: 14px; }
  .footer-links { font-size: 14px; }
  .footer-bottom { flex-direction: column; margin-top: 42px; font-size: 12px; }
  .footer-ghost { height: 112px; font-size: clamp(96px, 27vw, 150px); transform: translateY(31%); filter: none; }

  /* Contact, kept deliberately close to the reference proportions. */
  .contact-main { padding-top: 34px; }
  .contact-shell { width: min(calc(100% - 28px), 760px); }
  .contact-shell h1 { font-size: 58px; }
  .contact-lede { font-size: 14px; }
  .contact-grid { grid-template-columns: 1fr; gap: 16px; }
  .contact-info, .contact-form-card { padding: 24px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
  .reveal { opacity: 1; transform: none; }
}