:root {
  color-scheme: light;
  --ink: #122033;
  --text: #223044;
  --muted: #637189;
  --line: #d8e1ee;
  --soft-line: #e9eef5;
  --page: #f8fafc;
  --surface: #ffffff;
  --blue: #1667d9;
  --blue-strong: #0f5fd0;
  --green: #18a970;
  --amber: #d9981b;
  --shadow: 0 20px 48px rgba(24, 38, 63, 0.14);
  --radius: 8px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--page);
  color: var(--text);
  font-family:
    Inter,
    ui-sans-serif,
    system-ui,
    -apple-system,
    BlinkMacSystemFont,
    "Segoe UI",
    sans-serif;
  line-height: 1.6;
}

a {
  color: inherit;
  text-decoration: none;
}

img {
  display: block;
  max-width: 100%;
}

code {
  border: 1px solid var(--soft-line);
  border-radius: 6px;
  background: #f2f6fb;
  color: #1f3b61;
  font-family: "SFMono-Regular", Consolas, monospace;
  font-size: 0.92em;
  padding: 0.12rem 0.32rem;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.25rem;
  min-height: 72px;
  padding: 0 5vw;
  border-bottom: 1px solid rgba(216, 225, 238, 0.9);
  background: rgba(248, 250, 252, 0.88);
  backdrop-filter: blur(18px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  min-width: 0;
}

.brand-mark {
  display: grid;
  width: 34px;
  height: 34px;
  place-items: center;
  border-radius: 8px;
  background: var(--blue);
  color: #fff;
  font-size: 0.72rem;
  font-weight: 800;
}

.brand strong,
.brand small {
  display: block;
}

.brand strong {
  color: var(--ink);
  font-size: 0.98rem;
  line-height: 1.1;
}

.brand small {
  color: var(--muted);
  font-size: 0.75rem;
}

.nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: clamp(1rem, 3vw, 2.25rem);
  color: #42516a;
  font-size: 0.92rem;
  font-weight: 650;
}

.header-tools {
  display: inline-flex;
  align-items: center;
  gap: 0.8rem;
}

.site-language {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 700;
}

.site-language select {
  min-height: 36px;
  border: 1px solid var(--line);
  border-radius: 7px;
  background: #fff;
  color: var(--ink);
  font: inherit;
  font-size: 0.86rem;
  font-weight: 650;
  padding: 0.38rem 0.58rem;
}

.nav a,
.header-action {
  transition:
    color 160ms ease,
    border-color 160ms ease,
    background-color 160ms ease;
}

.nav a:hover {
  color: var(--blue);
}

.header-action {
  border: 1px solid var(--line);
  border-radius: 7px;
  background: #fff;
  color: var(--ink);
  font-size: 0.9rem;
  font-weight: 750;
  padding: 0.56rem 0.9rem;
}

.header-action:hover {
  border-color: #b7c8df;
  color: var(--blue);
}

.hero {
  position: relative;
  min-height: 82vh;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
  background:
    linear-gradient(90deg, rgba(248, 250, 252, 0.98) 0%, rgba(248, 250, 252, 0.94) 40%, rgba(248, 250, 252, 0.72) 64%, rgba(248, 250, 252, 0.32) 100%),
    #f8fafc;
}

.hero-media {
  position: absolute;
  top: clamp(8rem, 18vh, 11rem);
  right: 4vw;
  width: min(34vw, 680px);
  pointer-events: none;
}

.hero-media img {
  width: 100%;
  border: 1px solid rgba(169, 187, 211, 0.72);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.hero-inner {
  position: relative;
  display: grid;
  min-height: 82vh;
  align-content: center;
  gap: clamp(2rem, 5vw, 4.5rem);
  width: min(1160px, 90vw);
  margin: 0 auto;
  padding: 7rem 0 4rem;
}

.hero-copy {
  max-width: 660px;
}

.hero h1 {
  margin: 0;
  color: var(--ink);
  font-size: clamp(4rem, 10vw, 8.8rem);
  font-weight: 820;
  letter-spacing: 0;
  line-height: 0.9;
}

.hero-lede {
  max-width: 640px;
  margin: 1.45rem 0 0;
  color: #34435a;
  font-size: clamp(1.15rem, 2.2vw, 1.55rem);
  font-weight: 520;
  line-height: 1.55;
}

.hero-actions,
.download-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  margin-top: 1.9rem;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  border-radius: 8px;
  font-size: 0.98rem;
  font-weight: 780;
  padding: 0.72rem 1.1rem;
  transition:
    transform 160ms ease,
    border-color 160ms ease,
    background-color 160ms ease;
}

.button:hover {
  transform: translateY(-1px);
}

.button.primary {
  background: var(--blue);
  color: #fff;
  box-shadow: 0 12px 24px rgba(22, 103, 217, 0.22);
}

.button.primary:hover {
  background: var(--blue-strong);
}

.button.secondary {
  border: 1px solid var(--line);
  background: #fff;
  color: var(--ink);
}

.button.secondary:hover {
  border-color: #b7c8df;
}

.hero-facts {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
  width: min(820px, 100%);
  margin: 0;
}

.hero-facts div {
  border: 1px solid rgba(205, 217, 232, 0.86);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.78);
  padding: 1rem;
}

.hero-facts dt {
  color: var(--ink);
  font-size: 0.98rem;
  font-weight: 820;
}

.hero-facts dd {
  margin: 0.35rem 0 0;
  color: var(--muted);
  font-size: 0.9rem;
  line-height: 1.55;
}

.intro-band,
.section,
.download-section {
  width: min(1160px, 90vw);
  margin: 0 auto;
}

.intro-band {
  padding: 3rem 0 5rem;
}

.intro-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.88fr) minmax(320px, 1.12fr);
  gap: clamp(1.5rem, 4vw, 3rem);
  align-items: center;
}

.intro-grid p {
  margin: 0;
  color: var(--ink);
  font-size: clamp(1.45rem, 3vw, 2.35rem);
  font-weight: 750;
  line-height: 1.24;
}

.intro-grid img,
.media-frame,
.screen {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: 0 12px 32px rgba(23, 37, 60, 0.08);
}

.intro-grid img {
  width: 100%;
}

.section {
  padding: 5rem 0;
  border-top: 1px solid var(--soft-line);
}

.section-heading {
  max-width: 760px;
  margin-bottom: 2rem;
}

.section-heading h2,
.section-copy h2,
.download-section h2 {
  margin: 0;
  color: var(--ink);
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 820;
  letter-spacing: 0;
  line-height: 1.08;
}

.section-heading p,
.section-copy p,
.download-section p {
  margin: 1rem 0 0;
  color: var(--muted);
  font-size: 1.06rem;
}

.workflow {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.workflow li {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  padding: 1.15rem;
}

.workflow span {
  color: var(--blue);
  font-size: 0.84rem;
  font-weight: 850;
}

.workflow strong {
  display: block;
  margin-top: 1.3rem;
  color: var(--ink);
  font-size: 1.05rem;
}

.workflow p,
.check-list {
  color: var(--muted);
  font-size: 0.94rem;
}

.workflow p {
  margin: 0.45rem 0 0;
}

.split-section {
  display: grid;
  grid-template-columns: minmax(0, 0.85fr) minmax(420px, 1.15fr);
  gap: clamp(2rem, 5vw, 4rem);
  align-items: center;
}

.check-list {
  display: grid;
  gap: 0.68rem;
  margin: 1.5rem 0 0;
  padding: 0;
  list-style: none;
}

.check-list li {
  position: relative;
  padding-left: 1.35rem;
}

.check-list li::before {
  position: absolute;
  left: 0;
  top: 0.62em;
  width: 0.46rem;
  height: 0.46rem;
  border-radius: 999px;
  background: var(--green);
  content: "";
}

.media-frame,
.screen {
  margin: 0;
  overflow: hidden;
}

.media-frame img,
.screen img {
  width: 100%;
}

figcaption {
  border-top: 1px solid var(--soft-line);
  color: var(--muted);
  font-size: 0.88rem;
  padding: 0.85rem 1rem;
}

.screen-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}

.screen.wide {
  grid-column: 1 / -1;
}

.security-section {
  padding-top: 4rem;
}

.security-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1rem;
}

.security-grid div {
  min-width: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  padding: 1.1rem;
}

.security-grid strong {
  display: block;
  color: var(--ink);
  font-size: 0.95rem;
  margin-bottom: 0.52rem;
}

.security-grid code {
  display: inline-block;
  max-width: 100%;
  overflow-wrap: anywhere;
}

.download-section {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 2rem;
  align-items: center;
  margin-bottom: 4rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  padding: clamp(1.5rem, 4vw, 2.4rem);
  box-shadow: 0 12px 32px rgba(23, 37, 60, 0.08);
}

.download-actions {
  justify-content: flex-end;
  margin-top: 0;
}

.site-footer {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1.25rem;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.9rem;
  padding: 2rem 5vw;
}

.site-footer span:first-child {
  color: var(--ink);
  font-weight: 800;
}

.site-footer a:hover {
  color: var(--blue);
}

html[dir="rtl"] body {
  text-align: right;
}

html[dir="rtl"] .brand,
html[dir="rtl"] .site-header,
html[dir="rtl"] .nav,
html[dir="rtl"] .header-tools,
html[dir="rtl"] .hero-actions,
html[dir="rtl"] .download-actions,
html[dir="rtl"] .site-footer {
  direction: rtl;
}

html[dir="rtl"] .hero {
  background:
    linear-gradient(270deg, rgba(248, 250, 252, 0.98) 0%, rgba(248, 250, 252, 0.94) 40%, rgba(248, 250, 252, 0.72) 64%, rgba(248, 250, 252, 0.32) 100%),
    #f8fafc;
}

html[dir="rtl"] .hero-media {
  right: auto;
  left: 4vw;
}

html[dir="rtl"] .check-list li {
  padding-right: 1.35rem;
  padding-left: 0;
}

html[dir="rtl"] .check-list li::before {
  right: 0;
  left: auto;
}

@media (max-width: 900px) {
  .site-header {
    align-items: flex-start;
    flex-direction: column;
    padding: 1rem 5vw;
  }

  .header-tools {
    width: 100%;
    justify-content: space-between;
  }

  .nav {
    justify-content: flex-start;
    width: 100%;
    overflow-x: auto;
    padding-bottom: 0.1rem;
  }

  .header-action {
    display: none;
  }

  .hero {
    display: flex;
    flex-direction: column;
    min-height: auto;
  }

  .hero-media {
    position: relative;
    order: 2;
    inset: auto;
    width: 100%;
    padding: 0 5vw 3rem;
  }

  html[dir="rtl"] .hero-media {
    inset: auto;
  }

  .hero-inner {
    order: 1;
    min-height: auto;
    padding: 4.5rem 0 2rem;
  }

  .hero-facts,
  .intro-grid,
  .workflow,
  .split-section,
  .screen-grid,
  .security-grid,
  .download-section {
    grid-template-columns: 1fr;
  }

  .download-actions {
    justify-content: flex-start;
  }
}

@media (max-width: 560px) {
  .brand span:last-child {
    min-width: 0;
  }

  .nav {
    gap: 0.95rem;
    font-size: 0.86rem;
  }

  .hero h1 {
    font-size: clamp(3.4rem, 18vw, 5.2rem);
  }

  .hero-lede,
  .section-heading p,
  .section-copy p,
  .download-section p {
    font-size: 1rem;
  }

  .section {
    padding: 3.4rem 0;
  }

  .intro-band {
    padding-bottom: 3.4rem;
  }

  .button {
    width: 100%;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition: none !important;
  }
}