:root {
  --navy: #111c2b;
  --navy-soft: #223a51;
  --orange: #f97300;
  --orange-dark: #cc5d00;
  --green: #168754;
  --text: #26364a;
  --muted: #617084;
  --line: #dce3ea;
  --surface: #f6f8fa;
  --white: #ffffff;
  --shadow: 0 22px 60px rgba(17, 28, 43, 0.12);
  --radius: 22px;
  --content: 1180px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--white);
  color: var(--text);
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 17px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
img { display: block; max-width: 100%; }
a { color: var(--navy); text-underline-offset: 4px; }
a:hover { color: var(--orange-dark); }
button, a { -webkit-tap-highlight-color: transparent; }
button:focus-visible, a:focus-visible, summary:focus-visible { outline: 3px solid rgba(249, 115, 0, 0.38); outline-offset: 4px; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }
.skip-link { position: fixed; left: 18px; top: -80px; z-index: 100; padding: 10px 16px; background: var(--navy); color: white; border-radius: 8px; }
.skip-link:focus { top: 18px; }

.brand { display: inline-flex; align-items: center; gap: 12px; color: var(--navy); font-weight: 800; text-decoration: none; letter-spacing: -0.02em; }
.brand img { border-radius: 11px; }

.page-shell { display: grid; grid-template-columns: 264px minmax(0, 1fr); min-height: 100vh; }
.page-content { min-width: 0; }
.site-sidebar { position: sticky; top: 0; z-index: 30; height: 100vh; padding: 30px 24px 24px; display: flex; flex-direction: column; border-right: 1px solid var(--line); background: var(--surface); }
.site-sidebar .brand { align-items: flex-start; line-height: 1.2; }
.site-sidebar .brand span { padding-top: 4px; }
.sidebar-label { margin: 64px 0 13px; color: var(--muted); font-size: 10px; font-weight: 800; letter-spacing: .13em; text-transform: uppercase; }
.sidebar-nav { display: flex; flex-direction: column; gap: 2px; }
.sidebar-nav a { padding: 9px 11px; border-left: 2px solid transparent; color: var(--muted); font-size: 14px; font-weight: 700; text-decoration: none; transition: color 150ms ease, border-color 150ms ease, background 150ms ease; }
.sidebar-nav a:hover, .sidebar-nav a:focus-visible { border-left-color: var(--orange); color: var(--navy); background: white; }
.sidebar-actions { margin-top: auto; padding-top: 28px; border-top: 1px solid var(--line); }
.sidebar-actions .button { width: 100%; }
.sidebar-source { display: block; margin-top: 15px; color: var(--muted); font-size: 12px; font-weight: 700; text-decoration: none; }
.sidebar-source:hover { color: var(--orange-dark); }
.menu-button, .sidebar-backdrop { display: none; }
section[id] { scroll-margin-top: 24px; }

h1, h2, h3 { margin-top: 0; color: var(--navy); line-height: 1.08; letter-spacing: -0.045em; }
h1 { max-width: 650px; margin-bottom: 28px; font-size: clamp(3rem, 5.5vw, 5.2rem); }
.page-content h1 { font-size: clamp(3rem, 4.8vw, 4.7rem); }
h2 { margin-bottom: 20px; font-size: clamp(2.25rem, 4vw, 3.6rem); }
h3 { margin-bottom: 14px; font-size: clamp(1.45rem, 2.2vw, 2rem); }
p { margin-top: 0; }

.button-row { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 34px; }
.button-row.centered { justify-content: center; }
.button {
  display: inline-flex;
  min-height: 54px;
  align-items: center;
  justify-content: center;
  padding: 13px 24px;
  border: 2px solid var(--orange);
  border-radius: 12px;
  background: var(--orange);
  color: white;
  font-size: 16px;
  font-weight: 800;
  line-height: 1.2;
  text-decoration: none;
  box-shadow: 0 10px 24px rgba(249, 115, 0, 0.18);
  transition: transform 160ms ease, box-shadow 160ms ease, background 160ms ease;
}
.button:hover { transform: translateY(-2px); background: var(--orange-dark); border-color: var(--orange-dark); color: white; box-shadow: 0 14px 30px rgba(249, 115, 0, 0.24); }
.button-secondary { background: white; border-color: #aeb9c5; color: var(--navy); box-shadow: none; }
.button-secondary:hover { background: var(--surface); border-color: var(--navy); color: var(--navy); }
.button-small { min-height: 44px; padding: 10px 18px; font-size: 14px; }

.hero {
  width: min(1420px, calc(100% - 40px));
  margin: 56px auto 96px;
  display: grid;
  grid-template-columns: minmax(0, 0.83fr) minmax(520px, 1.17fr);
  align-items: center;
  gap: clamp(42px, 6vw, 90px);
}
.hero-lede { max-width: 630px; color: var(--muted); font-size: clamp(1.15rem, 1.55vw, 1.4rem); line-height: 1.65; }
.download-note { margin-top: 18px; color: var(--muted); font-size: 13px; }
.media-frame { display: block; width: 100%; margin: 0; padding: 0; overflow: hidden; border: 1px solid var(--line); border-radius: var(--radius); background: white; box-shadow: var(--shadow); cursor: zoom-in; }
.media-frame img { width: 100%; height: auto; object-fit: contain; transition: transform 320ms ease; }
.media-frame:hover img { transform: scale(1.012); }

.problem-section { padding: 88px max(20px, calc((100% - var(--content)) / 2)); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.problem-section > h2 { text-align: center; }
.problem-list { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; margin-top: 52px; }
.problem-list article { position: relative; padding: 0 42px; border-left: 1px solid var(--line); }
.problem-list article:first-child { padding-left: 0; border-left: 0; }
.problem-list article:last-child { padding-right: 0; }
.problem-list h3 { font-size: 1.45rem; letter-spacing: -0.025em; }
.problem-list p { color: var(--muted); font-size: 15px; }
.number { display: grid; width: 36px; height: 36px; margin-bottom: 24px; place-items: center; border-radius: 50%; background: var(--orange); color: white; font-size: 15px; font-weight: 900; }

.workflow, .install-section, .faq-section { width: min(var(--content), calc(100% - 40px)); margin: 0 auto; padding: 112px 0; }
.section-heading { max-width: 830px; margin: 0 auto 74px; text-align: center; }
.section-heading p { color: var(--muted); font-size: 1.12rem; }
.section-heading.left { max-width: 760px; margin-left: 0; text-align: left; }
.workflow-row { display: grid; grid-template-columns: minmax(260px, 0.68fr) minmax(0, 1.32fr); align-items: center; gap: 78px; padding: 64px 0; border-top: 1px solid var(--line); }
.workflow-row-reverse { grid-template-columns: minmax(0, 1.32fr) minmax(260px, 0.68fr); }
.workflow-row-reverse .workflow-copy { order: 2; }
.workflow-copy p { color: var(--muted); }
.step-label { display: inline-block; margin-bottom: 18px; color: var(--orange-dark); font-size: 13px; font-weight: 900; letter-spacing: 0.11em; text-transform: uppercase; }

.privacy-band { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: 76px; width: min(1280px, calc(100% - 40px)); margin: 0 auto; padding: 72px; border: 1px solid var(--line); border-radius: 24px; background: var(--surface); }
.privacy-band h2 { font-size: clamp(2rem, 3.2vw, 3rem); }
.privacy-band p { color: var(--muted); }
.privacy-band > div > a { font-weight: 800; }
.trust-list { display: grid; grid-template-columns: repeat(3, 1fr); margin: 0; padding: 0; list-style: none; }
.trust-list li { display: flex; flex-direction: column; gap: 8px; padding: 18px 26px; border-left: 1px solid var(--line); }
.trust-list strong { color: var(--navy); font-size: 16px; }
.trust-list span { color: var(--muted); font-size: 14px; }

.control-section, .trust-section { width: min(var(--content), calc(100% - 40px)); margin: 0 auto; padding: 112px 0; display: grid; grid-template-columns: 1.15fr 0.85fr; align-items: center; gap: 82px; }
.control-section p, .trust-section p { color: var(--muted); }
.check-list { padding: 0; list-style: none; }
.check-list li { position: relative; margin: 12px 0; padding-left: 30px; color: var(--navy); font-weight: 700; }
.check-list li::before { content: "✓"; position: absolute; left: 0; color: var(--green); font-weight: 900; }

.install-section { border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.install-steps { display: grid; grid-template-columns: repeat(5, 1fr); margin: 0; padding: 0; list-style: none; }
.install-steps li { position: relative; padding: 58px 28px 20px; border-left: 1px solid var(--line); }
.install-steps li:first-child { padding-left: 0; border-left: 0; }
.install-number { position: absolute; top: 0; display: grid !important; width: 38px; height: 38px; margin: 0 !important; place-items: center; border-radius: 50%; background: var(--navy); color: white !important; font-size: 14px !important; font-weight: 900; }
.install-steps strong, .install-steps span { display: block; }
.install-steps strong { color: var(--navy); font-size: 16px; }
.install-steps span { margin-top: 8px; color: var(--muted); font-size: 14px; }
code { padding: 2px 6px; border-radius: 5px; background: #edf1f4; color: var(--navy); font-size: 0.9em; }
.install-help { margin-top: 42px; color: var(--muted); }

.trust-section { grid-template-columns: 0.85fr 1.15fr; }
.facts { margin: 38px 0 0; border-top: 1px solid var(--line); }
.facts > div { display: grid; grid-template-columns: 150px 1fr; padding: 12px 0; border-bottom: 1px solid var(--line); }
.facts dt { color: var(--muted); font-size: 14px; }
.facts dd { margin: 0; color: var(--navy); font-size: 14px; font-weight: 800; }

.faq-section { padding-top: 40px; }
.faq-list { border-top: 1px solid var(--line); }
.faq-list details { border-bottom: 1px solid var(--line); }
.faq-list summary { position: relative; padding: 28px 58px 28px 0; color: var(--navy); font-size: 20px; font-weight: 800; cursor: pointer; list-style: none; }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary::after { content: "+"; position: absolute; right: 8px; top: 23px; color: var(--orange); font-size: 30px; font-weight: 400; }
.faq-list details[open] summary::after { content: "−"; }
.faq-list details p { max-width: 840px; padding: 0 0 28px; color: var(--muted); }

.final-cta { padding: 100px 20px; background: var(--navy); color: white; text-align: center; }
.final-cta h2 { max-width: 760px; margin-right: auto; margin-left: auto; color: white; }
.final-cta p { max-width: 680px; margin-right: auto; margin-left: auto; color: #c7d2dd; }
.final-cta .button-secondary { background: transparent; border-color: #718397; color: white; }
.final-cta .button-secondary:hover { background: rgba(255,255,255,0.08); border-color: white; color: white; }

footer { width: min(var(--content), calc(100% - 40px)); margin: 0 auto; padding: 48px 0; display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 22px 40px; }
.footer-brand { font-size: 15px; }
.footer-links { display: flex; gap: 24px; }
.footer-links a { font-size: 14px; font-weight: 700; }
footer > p { grid-column: 1 / -1; margin: 0; color: var(--muted); font-size: 13px; }

.lightbox { width: min(1240px, calc(100% - 32px)); max-width: none; padding: 12px; border: 0; border-radius: 20px; background: white; box-shadow: 0 28px 90px rgba(0,0,0,0.35); }
.lightbox::backdrop { background: rgba(8, 16, 27, 0.78); }
.lightbox img { width: 100%; border-radius: 12px; }
.lightbox-close { position: absolute; right: 20px; top: 20px; z-index: 2; display: grid; width: 42px; height: 42px; place-items: center; border: 0; border-radius: 50%; background: var(--navy); color: white; font-size: 28px; line-height: 1; cursor: pointer; }

@media (max-width: 1000px) {
  .hero { grid-template-columns: 1fr; margin-top: 44px; }
  .hero-copy { max-width: 760px; }
  .problem-list { gap: 34px; }
  .problem-list article { padding: 0 22px; }
  .workflow-row, .workflow-row-reverse, .control-section, .trust-section { grid-template-columns: 1fr; gap: 42px; }
  .workflow-row-reverse .workflow-copy { order: initial; }
  .privacy-band { grid-template-columns: 1fr; gap: 40px; padding: 50px; }
  .trust-list { border-top: 1px solid var(--line); }
  .trust-list li:first-child { border-left: 0; }
  .install-steps { grid-template-columns: repeat(3, 1fr); row-gap: 32px; }
  .install-steps li:nth-child(4) { border-left: 0; }
}

@media (max-width: 1100px) {
  .page-shell { display: block; }
  body.nav-open { overflow: hidden; }
  .site-sidebar { position: fixed; left: 0; top: 0; z-index: 60; width: min(320px, 86vw); height: 100dvh; transform: translateX(-102%); box-shadow: 18px 0 55px rgba(17, 28, 43, .2); transition: transform 220ms ease; }
  .site-sidebar.open { transform: translateX(0); }
  .sidebar-backdrop { position: fixed; inset: 0; z-index: 50; width: 100%; height: 100%; padding: 0; border: 0; background: rgba(17, 28, 43, .54); }
  .sidebar-backdrop.open { display: block; }
  .menu-button { position: sticky; top: 12px; z-index: 40; width: min(var(--content), calc(100% - 32px)); min-height: 46px; margin: 12px auto 0; padding: 10px 14px; display: flex; align-items: center; justify-content: space-between; gap: 20px; border: 1px solid var(--line); border-radius: 10px; color: var(--navy); background: rgba(255,255,255,.94); box-shadow: 0 8px 24px rgba(17,28,43,.1); font: inherit; font-size: 13px; font-weight: 800; cursor: pointer; backdrop-filter: blur(12px); }
  .menu-icon { color: var(--orange-dark); font-size: 10px; font-weight: 900; letter-spacing: .1em; text-transform: uppercase; }
  section[id] { scroll-margin-top: 82px; }
}

@media (max-width: 760px) {
  body { font-size: 16px; }
  .site-sidebar .brand span { max-width: 220px; font-size: 14px; line-height: 1.2; }
  h1 { font-size: clamp(2.75rem, 13vw, 4.2rem); }
  .hero { width: min(100% - 28px, 1420px); margin-bottom: 66px; }
  .button-row { flex-direction: column; }
  .button { width: 100%; }
  .problem-section { padding-top: 66px; padding-bottom: 66px; }
  .problem-list { grid-template-columns: 1fr; margin-top: 42px; }
  .problem-list article, .problem-list article:first-child, .problem-list article:last-child { padding: 28px 0; border-top: 1px solid var(--line); border-left: 0; }
  .workflow, .install-section, .faq-section { width: min(100% - 32px, var(--content)); padding: 82px 0; }
  .section-heading { margin-bottom: 48px; text-align: left; }
  .workflow-row { padding: 48px 0; }
  .privacy-band { width: min(100% - 28px, 1280px); padding: 32px 24px; }
  .trust-list { grid-template-columns: 1fr; }
  .trust-list li { padding: 20px 0; border-top: 1px solid var(--line); border-left: 0; }
  .control-section, .trust-section { width: min(100% - 32px, var(--content)); padding: 82px 0; }
  .install-steps { grid-template-columns: 1fr; }
  .install-steps li, .install-steps li:first-child { min-height: 126px; padding: 12px 0 28px 62px; border-top: 1px solid var(--line); border-left: 0; }
  .install-number { left: 0; top: 12px; }
  .facts > div { grid-template-columns: 120px 1fr; }
  footer { grid-template-columns: 1fr; }
  .footer-links { flex-wrap: wrap; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: 0.01ms !important; }
}