:root {
  /* Color system: update these values first when adjusting the overall look and feel. */
  --color-background: #090b17;
  --color-background-top: #05060d;
  --color-background-mid: #0d1120;
  --color-background-elevated: #12172a;
  --color-panel: rgba(18, 23, 42, 0.88);
  --color-text: #f7f5ff;
  --color-text-muted: #b9bfd3;
  --color-text-muted-strong: #d8def1;
  --color-line: rgba(255, 255, 255, 0.1);
  --color-line-strong: rgba(255, 196, 84, 0.26);
  --color-accent: #ffb547;
  --color-accent-strong: #ffd27d;
  --color-accent-glow: rgba(255, 181, 71, 0.35);
  --color-accent-dark: #10131d;

  /* Typography: change font families and main type sizing here for the whole site. */
  --font-body: Arial, Helvetica, sans-serif;
  --font-size-base: 16px;
  --font-size-eyebrow: 0.82rem;
  --font-size-brand: 1.1rem;
  --font-size-footer-title: 1.1rem;
  --font-line-height-body: 1.6;
  --font-letter-spacing-tight: -0.03em;
  --font-letter-spacing-wide: 0.18em;

  /* Spacing scale: reuse these values instead of adding one-off spacing numbers later. */
  --space-2xs: 0.35rem;
  --space-xs: 0.55rem;
  --space-sm: 0.85rem;
  --space-md: 1rem;
  --space-lg: 1.25rem;
  --space-xl: 1.5rem;
  --space-2xl: 1.75rem;
  --space-3xl: 2rem;
  --space-4xl: 3rem;
  --space-5xl: 5rem;
  --space-6xl: 5.5rem;

  /* Sizing and layout: update these when changing page width or shared component proportions. */
  --container-width: 1180px;
  --narrow-width: 760px;
  --nav-height: 5.2rem;
  --button-height: 3rem;
  --badge-height: 2rem;
  --step-size: 2.2rem;

  /* Border radius: keep curves consistent by reusing these variables across components. */
  --radius-pill: 999px;
  --radius-card: 24px;
  --radius-inner: 16px;
  --radius-brand: 12px;
  --radius-toggle: 14px;

  /* Shadows: centralize glow and panel depth here instead of per-component custom values. */
  --shadow-panel: 0 24px 70px rgba(0, 0, 0, 0.38);
  --shadow-button: 0 10px 30px var(--color-accent-glow);
  --shadow-step: 0 8px 24px rgba(255, 181, 71, 0.35);
  --shadow-brand: 0 0 0 1px var(--color-line), 0 0 30px rgba(255, 181, 71, 0.18);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  font-family: var(--font-body);
  font-size: var(--font-size-base);
  line-height: var(--font-line-height-body);
  color: var(--color-text);
  background:
    radial-gradient(circle at top right, rgba(255, 181, 71, 0.1), transparent 30%),
    radial-gradient(circle at top left, rgba(255, 181, 71, 0.08), transparent 35%),
    linear-gradient(180deg, var(--color-background-top) 0%, var(--color-background-mid) 46%, var(--color-background) 100%);
}

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

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

button {
  font: inherit;
}

:focus-visible {
  outline: 3px solid var(--color-accent);
  outline-offset: 3px;
}

.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: absolute;
  left: var(--space-md);
  top: -3rem;
  z-index: 100;
  padding: 0.75rem var(--space-md);
  border-radius: var(--radius-pill);
  background: var(--color-accent);
  color: var(--color-accent-dark);
  font-weight: 700;
}

.skip-link:focus {
  top: var(--space-md);
}

.container {
  width: min(var(--container-width), calc(100% - 2rem));
  margin: 0 auto;
}

.narrow-copy {
  max-width: var(--narrow-width);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 30;
  backdrop-filter: blur(18px);
  background: rgba(7, 10, 19, 0.82);
  border-bottom: 1px solid var(--color-line);
}

@media (max-width: 760px) {
  .site-header {
    backdrop-filter: blur(10px);
  }
}

.header-shell {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  min-height: var(--nav-height);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: var(--font-size-brand);
  font-weight: 700;
}

.brand img {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-brand);
  box-shadow: var(--shadow-brand);
}

.site-nav {
  display: flex;
  align-items: center;
  gap: var(--space-2xs);
  margin-left: auto;
}

.site-nav a {
  padding: 0.7rem 0.95rem;
  border-radius: var(--radius-pill);
  color: var(--color-text-muted);
}

.site-nav a:hover,
.site-nav a[aria-current="page"] {
  color: var(--color-text);
  background: rgba(255, 255, 255, 0.04);
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: var(--button-height);
  padding: 0.9rem 1.2rem;
  border: 1px solid transparent;
  border-radius: var(--radius-pill);
  font-weight: 700;
  text-align: center;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background-color 0.2s ease;
}

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

.button-primary {
  color: #111;
  background: linear-gradient(135deg, var(--color-accent) 0%, #ffd88d 100%);
  box-shadow: var(--shadow-button);
}

.button-secondary {
  color: var(--color-text);
  border-color: var(--color-line);
  background: rgba(255, 255, 255, 0.03);
}

.button-nav {
  margin-left: 0.4rem;
}

.nav-toggle {
  display: none;
  margin-left: auto;
  width: 3rem;
  height: 3rem;
  padding: 0;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-toggle);
  color: var(--color-text);
  background: rgba(255, 255, 255, 0.03);
}

.nav-toggle-bar {
  display: block;
  width: 1.25rem;
  height: 2px;
  margin: 0.18rem auto;
  background: currentColor;
}

.hero,
.page-hero {
  padding: var(--space-6xl) 0 var(--space-4xl);
}

.section {
  padding: var(--space-3xl) 0 var(--space-5xl);
}

.section-alt {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.02), rgba(255, 255, 255, 0));
}

.hero-grid,
.two-column,
.value-grid,
.help-grid,
.footer-grid {
  display: grid;
  gap: var(--space-xl);
}

.hero-grid {
  grid-template-columns: minmax(0, 1.1fr) minmax(320px, 0.9fr);
  align-items: center;
}

.hero-copy h1,
.page-hero h1 {
  margin: 0 0 var(--space-md);
  font-size: clamp(2.5rem, 6vw, 4.8rem);
  line-height: 1.05;
  letter-spacing: var(--font-letter-spacing-tight);
}

.eyebrow {
  margin: 0 0 0.9rem;
  color: var(--color-accent-strong);
  font-size: var(--font-size-eyebrow);
  font-weight: 700;
  letter-spacing: var(--font-letter-spacing-wide);
  text-transform: uppercase;
}

.lead,
.section-heading p,
.hero-copy p,
.text-panel p,
.feature-copy p,
.support-card p,
.release-highlight,
.release-list,
.footer-copy,
.flow-text p,
.image-caption,
.screenshot-frame figcaption {
  color: var(--color-text-muted);
}

.button-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
  margin-top: 1.6rem;
}

.hero-points,
.check-list,
.release-list {
  margin: var(--space-xl) 0 0;
  padding-left: 1.2rem;
}

.hero-points li,
.check-list li,
.release-list li {
  margin-bottom: var(--space-xs);
  color: var(--color-text-muted-strong);
}

.card,
.panel,
.feature-card,
.step-card,
.support-card,
.release-card,
.cta-panel,
.screenshot-block,
.faq-item {
  border: 1px solid var(--color-line);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.03), rgba(255, 255, 255, 0.015)), var(--color-panel);
  box-shadow: var(--shadow-panel);
}

.card,
.panel,
.feature-card,
.step-card,
.support-card,
.release-card,
.cta-panel,
.screenshot-block {
  border-radius: var(--radius-card);
}

.card,
.panel,
.step-card,
.feature-card,
.support-card,
.release-card,
.cta-panel,
.screenshot-block {
  padding: var(--space-xl);
}

.section-shell {
  display: grid;
  gap: var(--space-xl);
}

.hero-media {
  overflow: hidden;
}

.hero-media img,
.screenshot-frame img,
.screenshot-block img {
  border-radius: calc(var(--radius-card) - 8px);
  background: linear-gradient(135deg, rgba(255, 181, 71, 0.08), rgba(255, 181, 71, 0.14));
}

.section-heading {
  max-width: var(--narrow-width);
  margin-bottom: var(--space-2xl);
}

.steps-grid,
.feature-grid,
.troubleshooting-grid,
.feature-sections,
.flow-stack,
.release-stack,
.policy-stack,
.support-list,
.faq-list,
.footer-links {
  display: grid;
  gap: var(--space-lg);
}

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

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

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

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

.step-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: var(--step-size);
  height: var(--step-size);
  margin-bottom: var(--space-md);
  border-radius: 50%;
  color: var(--color-accent-dark);
  background: linear-gradient(135deg, var(--color-accent), #ffe6a9);
  font-weight: 700;
  box-shadow: var(--shadow-step);
}

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

.feature-detail,
.flow-card {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(300px, 1fr);
  gap: var(--space-xl);
  align-items: center;
}

.screenshot-frame {
  margin: 0;
}

.screenshot-block {
  margin: 0;
}

.feature-detail:nth-child(even) .feature-copy,
.flow-card:nth-child(even) .flow-text {
  order: 2;
}

.feature-detail:nth-child(even) .screenshot-frame,
.flow-card:nth-child(even) .screenshot-frame {
  order: 1;
}

.release-header {
  display: flex;
  align-items: start;
  justify-content: space-between;
  gap: var(--space-md);
  margin-bottom: var(--space-md);
}

.release-version,
.release-date {
  margin: 0;
}

.release-version {
  font-size: 1.3rem;
  font-weight: 700;
}

.release-badge {
  display: inline-flex;
  align-items: center;
  min-height: var(--badge-height);
  padding: 0.35rem 0.8rem;
  border: 1px solid var(--color-line-strong);
  border-radius: var(--radius-pill);
  color: var(--color-accent-strong);
  background: rgba(255, 181, 71, 0.08);
  font-weight: 700;
}

.faq-item {
  border-radius: var(--radius-inner);
  overflow: hidden;
  background: rgba(255, 255, 255, 0.025);
}

.faq-item summary {
  cursor: pointer;
  list-style: none;
  padding: var(--space-md) 1.15rem;
  font-weight: 700;
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item p {
  margin: 0;
  padding: 0 1.15rem var(--space-md);
  color: var(--color-text-muted);
}

.inline-link {
  color: var(--color-accent-strong);
  text-decoration: underline;
  text-underline-offset: 0.18em;
}

.cta-panel {
  text-align: center;
}

.cta-panel p {
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }

  .button:hover {
    transform: none;
  }
}

.cta-panel .button-row {
  justify-content: center;
}

.site-footer {
  padding: var(--space-3xl) 0 var(--space-4xl);
  border-top: 1px solid var(--color-line);
  background: rgba(4, 6, 13, 0.55);
}

.footer-title {
  margin: 0 0 0.6rem;
  font-size: var(--font-size-footer-title);
}

.footer-links a {
  color: var(--color-text-muted);
}

.footer-links a:hover {
  color: var(--color-text);
}

@media (max-width: 980px) {
  .hero-grid,
  .feature-detail,
  .flow-card,
  .value-grid,
  .two-column,
  .footer-grid,
  .help-grid {
    grid-template-columns: 1fr;
  }

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

  .feature-detail:nth-child(even) .feature-copy,
  .feature-detail:nth-child(even) .screenshot-frame,
  .flow-card:nth-child(even) .flow-text,
  .flow-card:nth-child(even) .screenshot-frame {
    order: initial;
  }
}

@media (max-width: 760px) {
  .header-shell {
    flex-wrap: wrap;
    padding: var(--space-sm) 0;
  }

  .nav-toggle {
    display: inline-block;
  }

  .site-nav {
    display: none;
    width: 100%;
    flex-direction: column;
    align-items: stretch;
    margin-left: 0;
    padding: 0.5rem 0 0.3rem;
  }

  .site-nav.is-open {
    display: flex;
  }

  .site-nav a,
  .button-nav {
    width: 100%;
    margin-left: 0;
  }

  .steps-grid,
  .feature-grid,
  .troubleshooting-grid {
    grid-template-columns: 1fr;
  }
}