:root {
  color-scheme: light;
  --bg: #f4f6fa;
  --bg-soft: #edf4fb;
  --bg-warm: #fff8ef;
  --surface: rgba(255, 255, 255, 0.88);
  --surface-strong: #ffffff;
  --surface-muted: #f7fafc;
  --text: #0f1c34;
  --text-muted: #4f5f7c;
  --text-soft: #6a7a96;
  --border: rgba(49, 87, 133, 0.16);
  --border-strong: rgba(42, 92, 150, 0.28);
  --brand: #1f69bc;
  --brand-strong: #0d4b8c;
  --brand-bright: #2e9bda;
  --brand-soft: rgba(46, 155, 218, 0.12);
  --accent-warm: #d7a55d;
  --shadow: 0 24px 60px rgba(18, 40, 71, 0.08);
  --shadow-soft: 0 14px 34px rgba(18, 40, 71, 0.06);
  --radius-xl: 28px;
  --radius-lg: 22px;
  --radius-md: 16px;
  --radius-pill: 999px;
  --page-radial-left: rgba(255, 248, 239, 0.95);
  --page-radial-right: rgba(218, 238, 255, 0.75);
  --page-bg-end: #f6f8fb;
  --page-bg-end-mobile: #f7f9fc;
  --brand-mark-bg: rgba(255, 255, 255, 0.7);
  --brand-mark-border: rgba(31, 105, 188, 0.14);
  --brand-mark-shadow: 0 14px 28px rgba(18, 40, 71, 0.08);
  --nav-bg: rgba(255, 255, 255, 0.82);
  --nav-current-border: rgba(31, 105, 188, 0.34);
  --nav-current-bg: rgba(31, 105, 188, 0.1);
  --button-primary-text: #ffffff;
  --button-primary-shadow: 0 16px 32px rgba(31, 105, 188, 0.22);
  --screenshot-border: rgba(31, 105, 188, 0.08);
  --screenshot-shadow: 0 20px 40px rgba(18, 40, 71, 0.08);
  --social-link-bg: rgba(255, 255, 255, 0.74);
  --social-link-shadow: 0 8px 24px rgba(13, 20, 38, 0.07);
  --divider-glow: rgba(31, 105, 188, 0.2);
  --theme-control-bg: rgba(255, 255, 255, 0.72);
  --theme-control-border: rgba(49, 87, 133, 0.16);
  --theme-control-hover: #ffffff;
  --theme-control-active-bg: rgba(31, 105, 188, 0.14);
  --theme-control-active-border: rgba(31, 105, 188, 0.28);
}

:root[data-theme="dark"] {
  color-scheme: dark;
  --bg: #0b1220;
  --bg-soft: #101a2b;
  --bg-warm: #171423;
  --surface: rgba(18, 29, 47, 0.88);
  --surface-strong: #121d2f;
  --surface-muted: #162336;
  --text: #f4f7ff;
  --text-muted: #c1cee4;
  --text-soft: #92a4c4;
  --border: rgba(154, 177, 212, 0.16);
  --border-strong: rgba(126, 168, 226, 0.34);
  --brand: #3a73b5;
  --brand-strong: #d9e8ff;
  --brand-bright: #285f9d;
  --brand-soft: rgba(74, 124, 194, 0.22);
  --accent-warm: #dfb479;
  --shadow: 0 24px 60px rgba(0, 0, 0, 0.36);
  --shadow-soft: 0 16px 40px rgba(0, 0, 0, 0.28);
  --page-radial-left: rgba(34, 27, 50, 0.82);
  --page-radial-right: rgba(18, 47, 79, 0.72);
  --page-bg-end: #0a111d;
  --page-bg-end-mobile: #0c1321;
  --brand-mark-bg: rgba(255, 255, 255, 0.05);
  --brand-mark-border: rgba(143, 182, 236, 0.14);
  --brand-mark-shadow: 0 14px 28px rgba(0, 0, 0, 0.24);
  --nav-bg: rgba(18, 29, 47, 0.82);
  --nav-current-border: rgba(126, 168, 226, 0.4);
  --nav-current-bg: rgba(74, 124, 194, 0.22);
  --button-primary-text: #f7fbff;
  --button-primary-shadow: 0 16px 32px rgba(8, 27, 51, 0.44);
  --screenshot-border: rgba(154, 190, 238, 0.14);
  --screenshot-shadow: 0 20px 44px rgba(0, 0, 0, 0.34);
  --social-link-bg: rgba(18, 29, 47, 0.94);
  --social-link-shadow: 0 8px 24px rgba(0, 0, 0, 0.24);
  --divider-glow: rgba(126, 168, 226, 0.3);
  --theme-control-bg: rgba(18, 29, 47, 0.9);
  --theme-control-border: rgba(154, 177, 212, 0.18);
  --theme-control-hover: rgba(30, 45, 68, 0.98);
  --theme-control-active-bg: rgba(74, 124, 194, 0.26);
  --theme-control-active-border: rgba(126, 168, 226, 0.4);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  line-height: 1.6;
  color: var(--text);
  background:
    radial-gradient(circle at top left, var(--page-radial-left), transparent 34rem),
    radial-gradient(circle at top right, var(--page-radial-right), transparent 32rem),
    linear-gradient(180deg, var(--bg-soft) 0%, var(--bg) 24%, var(--page-bg-end) 100%);
}

a {
  color: var(--brand-strong);
}

img {
  max-width: 100%;
}

.shell {
  width: min(1120px, calc(100% - 2rem));
  margin: 0 auto;
}

.site-header {
  padding: 1rem 0 0.45rem;
}

.topbar {
  display: grid;
  gap: 0.95rem;
}

.header-main {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

.nav-row {
  display: flex;
  justify-content: flex-start;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.9rem;
  text-decoration: none;
  color: inherit;
}

.brand-mark {
  width: 3.5rem;
  height: 3.5rem;
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 1.2rem;
  background: var(--brand-mark-bg);
  border: 1px solid var(--brand-mark-border);
  box-shadow: var(--brand-mark-shadow);
}

.brand-mark img {
  height: 2.35rem;
  width: 2.35rem;
  display: block;
}

.brand-text {
  display: flex;
  flex-direction: column;
  gap: 0.1rem;
}

.brand-text strong {
  font-size: 1.02rem;
  letter-spacing: 0.01em;
}

.brand-text span {
  font-size: 0.92rem;
  color: var(--text-soft);
}

.header-cta {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 0.55rem;
  flex-wrap: wrap;
}

.theme-switcher {
  display: inline-flex;
  align-items: center;
  gap: 0.16rem;
  padding: 0.14rem;
  border-radius: var(--radius-pill);
  border: 1px solid var(--theme-control-border);
  background: var(--theme-control-bg);
  box-shadow: var(--shadow-soft);
}

.theme-chip {
  appearance: none;
  border: 0;
  background: transparent;
  color: var(--text-soft);
  width: 1.65rem;
  height: 1.65rem;
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  font: inherit;
  cursor: pointer;
  transition: background-color 140ms ease, color 140ms ease, transform 140ms ease, box-shadow 140ms ease;
}

.theme-chip:hover,
.theme-chip:focus-visible {
  background: var(--theme-control-hover);
  color: var(--text);
  transform: translateY(-1px);
}

.theme-chip[aria-pressed="true"] {
  background: var(--theme-control-active-bg);
  color: var(--text);
  box-shadow: inset 0 0 0 1px var(--theme-control-active-border);
}

.theme-chip span {
  display: block;
  line-height: 1;
  font-size: 0.72rem;
}

.nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-start;
  gap: 0.55rem;
}

.nav a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.65rem 0.95rem;
  border-radius: var(--radius-pill);
  border: 1px solid var(--border);
  background: var(--nav-bg);
  color: var(--text);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.96rem;
  transition: border-color 140ms ease, background-color 140ms ease, transform 140ms ease;
}

.nav a:hover,
.nav a:focus-visible {
  border-color: var(--border-strong);
  background: var(--surface-strong);
  transform: translateY(-1px);
}

.nav a[aria-current="page"] {
  border-color: var(--nav-current-border);
  background: var(--nav-current-bg);
  color: var(--brand-strong);
}

.page-link {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-weight: 600;
  text-decoration: none;
}

.hero {
  padding: 1.75rem 0 1.5rem;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(300px, 0.8fr);
  gap: 1.3rem;
  align-items: stretch;
}

.hero-copy,
.hero-side,
.panel,
.card,
.faq-item,
.screenshot,
.footer-card {
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  background: var(--surface);
  box-shadow: var(--shadow-soft);
  backdrop-filter: blur(10px);
}

.hero-copy,
.hero-side,
.panel,
.footer-card {
  padding: 1.55rem;
}

.launch-pill,
.tag {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  border-radius: var(--radius-pill);
  padding: 0.45rem 0.8rem;
  background: var(--brand-soft);
  color: var(--brand-strong);
  font-weight: 700;
  font-size: 0.88rem;
  letter-spacing: 0.01em;
}

.launch-pill {
  margin-bottom: 1rem;
}

.tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  margin-top: 1.1rem;
}

.eyebrow {
  margin: 0 0 0.75rem;
  color: var(--text-soft);
  text-transform: uppercase;
  letter-spacing: 0.16em;
  font-size: 0.8rem;
  font-weight: 700;
}

h1,
h2,
h3 {
  line-height: 1.08;
  letter-spacing: -0.03em;
  margin: 0;
}

h1 {
  font-size: clamp(2.2rem, 5vw, 4.1rem);
  max-width: 12ch;
  margin-bottom: 1rem;
}

h2 {
  font-size: clamp(1.45rem, 3vw, 2.15rem);
  margin-bottom: 0.8rem;
}

h3 {
  font-size: 1.18rem;
  margin-bottom: 0.55rem;
}

p {
  margin: 0;
}

.lead {
  font-size: 1.13rem;
  color: var(--text-muted);
  max-width: 44rem;
}

.lead strong,
.card p strong,
.faq-item p strong {
  color: var(--text);
}

.hero-copy .lead + .lead {
  margin-top: 0.9rem;
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  margin-top: 1.25rem;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  min-height: 48px;
  padding: 0.78rem 1.15rem;
  border-radius: var(--radius-pill);
  border: 1px solid transparent;
  text-decoration: none;
  font-weight: 700;
}

.button-primary {
  background: linear-gradient(135deg, var(--brand) 0%, var(--brand-bright) 100%);
  color: var(--button-primary-text);
  box-shadow: var(--button-primary-shadow);
}

.button-secondary {
  background: var(--surface-strong);
  color: var(--text);
  border-color: var(--border-strong);
}

.button-app-launch {
  min-height: 52px;
  padding-inline: 1.05rem;
}

.button-mark {
  width: 1.15rem;
  height: 1.15rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 auto;
}

.button-mark img {
  width: 100%;
  height: 100%;
  display: block;
}

.button-primary .button-mark {
  width: 2.3rem;
  height: 2.3rem;
  padding: 0;
  border-radius: 0;
  background: transparent;
}

.meta-list,
.checklist,
.compact-list {
  margin: 0;
  padding-left: 1.15rem;
  color: var(--text-muted);
}

.meta-list li,
.checklist li,
.compact-list li {
  margin-bottom: 0.55rem;
}

.hero-side h2 {
  font-size: 1.35rem;
  margin-bottom: 0.7rem;
}

.hero-side {
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
}

.hero-wordmark {
  width: min(100%, 13.5rem);
  height: auto;
  display: block;
  margin-inline: auto;
}

.hero-side .lead {
  font-size: 1rem;
}

.section {
  padding: 1.45rem 0 0.3rem;
}

.section-header {
  max-width: 46rem;
  margin-bottom: 1.15rem;
}

.section-header h2 {
  max-width: 18ch;
}

.section-header .lead {
  max-width: 40rem;
  font-size: 1.03rem;
}

.section-label {
  display: block;
  margin-bottom: 0.45rem;
  color: var(--brand-strong);
  font-weight: 800;
  letter-spacing: 0.13em;
  text-transform: uppercase;
  font-size: 0.75rem;
}

.grid-2,
.grid-3,
.grid-4 {
  display: grid;
  gap: 1rem;
}

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

.grid-3 {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

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

.card,
.faq-item,
.screenshot {
  padding: 1.3rem;
  background: var(--surface-strong);
}

.card p,
.faq-item p,
.card li {
  color: var(--text-muted);
}

.card strong {
  color: var(--text);
}

.showcase-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(380px, 100%), 1fr));
  gap: 1.1rem;
  align-items: start;
}

.screenshot img {
  display: block;
  width: min(100%, 280px);
  height: auto;
  aspect-ratio: 1419 / 2796;
  object-fit: contain;
  margin: 0 auto;
  border-radius: 18px;
  border: 1px solid var(--screenshot-border);
  box-shadow: var(--screenshot-shadow);
}

.screenshot {
  display: grid;
  justify-items: center;
  align-content: start;
  gap: 1rem;
}

.screenshot figcaption {
  width: 100%;
  max-width: 24rem;
  color: var(--text-soft);
  font-size: 0.95rem;
  line-height: 1.55;
}

.screenshot figcaption strong {
  display: block;
  margin-bottom: 0.2rem;
  color: var(--text);
  font-size: 1rem;
}

.callout {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(260px, 0.8fr);
  gap: 1rem;
}

.callout .panel {
  min-height: 100%;
}

.related-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1rem;
}

.faq-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1rem;
}

.muted-note,
.small {
  color: var(--text-soft);
}

.small {
  font-size: 0.92rem;
}

.site-footer {
  padding: 1.5rem 0 2.5rem;
}

.footer-card {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 1rem;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
}

.footer-links a {
  text-decoration: none;
  font-weight: 600;
}

.footer-copy {
  display: grid;
  gap: 0.3rem;
}

.footer-social {
  display: grid;
  gap: 0.45rem;
  margin-top: 0.45rem;
}

.footer-social-label {
  font-weight: 600;
}

.social-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
}

.social-links a {
  display: inline-flex;
  align-items: center;
  min-height: 36px;
  padding: 0.5rem 0.82rem;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--social-link-bg);
  color: var(--text);
  text-decoration: none;
  font-weight: 600;
  box-shadow: var(--social-link-shadow);
}

.comparison {
  display: grid;
  gap: 0.85rem;
}

.comparison .card {
  min-height: 100%;
}

.comparison-label {
  color: var(--accent-warm);
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  font-size: 0.73rem;
  margin-bottom: 0.55rem;
}

.divider {
  height: 1px;
  border: 0;
  background: linear-gradient(90deg, transparent, var(--divider-glow), transparent);
  margin: 1rem 0;
}

@media (max-width: 980px) {
  .hero-grid,
  .callout,
  .grid-3,
  .grid-4 {
    grid-template-columns: 1fr;
  }

  .grid-2 {
    grid-template-columns: 1fr;
  }

  h1 {
    max-width: none;
  }
}

@media (max-width: 720px) {
  body {
    background:
      radial-gradient(circle at top center, var(--page-radial-right), transparent 24rem),
      linear-gradient(180deg, var(--bg-soft) 0%, var(--bg) 20%, var(--page-bg-end-mobile) 100%);
  }

  .shell {
    width: min(100% - 1.2rem, 1120px);
  }

  .hero {
    padding-top: 1rem;
  }

  .hero-copy,
  .hero-side,
  .panel,
  .card,
  .faq-item,
  .footer-card,
  .screenshot {
    padding: 1.15rem;
    border-radius: var(--radius-lg);
  }

  .nav {
    justify-content: flex-start;
    flex-wrap: nowrap;
    width: max-content;
    padding-right: 0.2rem;
  }

  .nav a {
    flex: 0 0 auto;
    white-space: nowrap;
  }

  .header-main {
    align-items: flex-start;
    gap: 0.8rem;
  }

  .cta-row,
  .footer-links {
    gap: 0.65rem;
  }

  .button {
    width: 100%;
  }

  .header-cta {
    width: 100%;
    justify-content: space-between;
    flex-wrap: nowrap;
    align-items: center;
    gap: 0.55rem;
  }

  .header-cta .button-app-launch {
    width: auto;
    flex: 1 1 auto;
    min-width: 0;
    min-height: 48px;
    padding-inline: 0.95rem;
  }

  .header-cta .button-app-launch span:last-child {
    white-space: nowrap;
  }

  .theme-switcher {
    width: auto;
    flex: 0 0 auto;
  }

  .nav-row {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    padding-bottom: 0.2rem;
    scroll-snap-type: x proximity;
    scrollbar-width: thin;
    scrollbar-color: var(--border-strong) transparent;
  }

  .nav-row::-webkit-scrollbar {
    height: 6px;
  }

  .nav-row::-webkit-scrollbar-thumb {
    border-radius: 999px;
    background: var(--border-strong);
  }

  .nav-row::-webkit-scrollbar-track {
    background: transparent;
  }

  .nav a {
    scroll-snap-align: start;
  }

  .brand-mark {
    width: 3.15rem;
    height: 3.15rem;
  }

  .brand-mark img {
    width: 2rem;
    height: 2rem;
  }

  .hero-wordmark {
    width: min(100%, 12rem);
  }
}