:root {
  --bg: #000000;
  --surface: #0d0d0d;
  --border: rgba(255, 255, 255, 0.08);
  --text: #ffffff;
  --text-secondary: rgba(255, 255, 255, 0.6);
  --text-muted: rgba(255, 255, 255, 0.35);
  --accent: #4f46e5;
  --green: #30d158;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 96px;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: "Inter", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.7;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

::selection {
  background: rgba(79, 70, 229, 0.35);
  color: var(--text);
}

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

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

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

p {
  margin: 0 0 1.4em;
  color: var(--text-secondary);
}

ul,
ol {
  margin: 0 0 1.4em 1.2em;
  padding: 0;
  color: var(--text-secondary);
}

li + li {
  margin-top: 0.6em;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  margin: 0 0 0.75em;
  line-height: 1.15;
  letter-spacing: -0.03em;
}

h1 {
  font-size: clamp(2.9rem, 6vw, 5.1rem);
  max-width: 12ch;
}

h2 {
  font-size: clamp(1.65rem, 3vw, 2.3rem);
}

h3 {
  font-size: 1.1rem;
}

.container {
  width: min(1120px, calc(100% - 40px));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(0, 0, 0, 0.72);
  backdrop-filter: blur(18px);
  border-bottom: 1px solid transparent;
  transition: background 0.2s ease, border-color 0.2s ease;
}

.site-header.is-scrolled {
  background: rgba(13, 13, 13, 0.96);
  border-color: var(--border);
}

.header-inner {
  min-height: 76px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--text);
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: -0.03em;
  white-space: nowrap;
}

.brand-mark {
  width: 32px;
  height: 32px;
  border-radius: 10px;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: linear-gradient(135deg, rgba(79, 70, 229, 0.4), rgba(255, 255, 255, 0.05));
  flex: none;
}

.brand-mark img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 22px;
  flex-wrap: wrap;
}

.site-nav a {
  color: var(--text-secondary);
  font-size: 0.95rem;
  font-weight: 500;
}

.site-nav a:hover,
.site-nav a:focus-visible {
  color: var(--text);
}

main {
  padding-bottom: 72px;
}

.section {
  padding: 72px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.04);
}

.section:first-of-type {
  border-top: 0;
}

.hero {
  padding: 84px 0 64px;
  border-top: 0;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(280px, 0.8fr);
  gap: 32px;
  align-items: start;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 18px;
  color: var(--green);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.eyebrow::before {
  content: "";
  width: 10px;
  height: 10px;
  border-radius: 999px;
  background: var(--green);
  box-shadow: 0 0 0 4px rgba(48, 209, 88, 0.12);
}

.hero-subtitle {
  font-size: clamp(1.08rem, 2vw, 1.35rem);
  font-weight: 400;
  max-width: 62ch;
  color: var(--text-secondary);
  margin-bottom: 1.6em;
}

.hero-ctas {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 14px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 18px;
  border-radius: 12px;
  border: 1px solid var(--border);
  font-size: 0.95rem;
  font-weight: 600;
  transition: transform 0.18s ease, border-color 0.18s ease, background 0.18s ease, color 0.18s ease;
}

.btn:hover,
.btn:focus-visible {
  transform: translateY(-1px);
}

.btn-primary {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

.btn-primary:hover,
.btn-primary:focus-visible {
  color: #fff;
  background: #5b52f0;
  border-color: #5b52f0;
}

.btn-secondary {
  color: var(--text);
  background: transparent;
}

.btn-secondary:hover,
.btn-secondary:focus-visible {
  background: rgba(255, 255, 255, 0.04);
  border-color: rgba(255, 255, 255, 0.16);
  color: var(--text);
}

.meta-line {
  color: var(--text-muted);
  font-size: 0.95rem;
}

.hero-panel,
.card,
.feature-card,
.quick-card,
.download-card,
.anchor-card {
  border: 1px solid var(--border);
  background: var(--surface);
  border-radius: 18px;
}

.hero-panel {
  padding: 24px;
}

.panel-list {
  display: grid;
  gap: 12px;
}

.panel-item {
  padding: 16px 0;
  border-bottom: 1px solid var(--border);
}

.panel-item:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.panel-item .label {
  display: block;
  margin-bottom: 4px;
  color: var(--text);
  font-weight: 600;
}

.panel-item .value {
  color: var(--text-secondary);
  margin: 0;
}

.section-heading {
  max-width: 18ch;
}

.section-lead,
.prose {
  max-width: 78ch;
}

.lead {
  font-size: 1.06rem;
}

.split {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
}

.columns {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.feature-card {
  padding: 24px;
}

.feature-card h3,
.quick-card h3,
.download-card h3 {
  margin-bottom: 10px;
}

.feature-card p,
.quick-card p,
.download-card p {
  margin-bottom: 0;
}

.steps {
  list-style: decimal;
  padding-left: 1.2em;
  display: grid;
  gap: 18px;
}

.steps li {
  padding: 22px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 18px;
}

.steps strong {
  display: block;
  color: var(--text);
  font-size: 1.05rem;
  margin-bottom: 8px;
}

.quick-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.quick-card {
  display: block;
  min-height: 100%;
  padding: 22px;
  transition: transform 0.18s ease, border-color 0.18s ease;
}

.quick-card:hover,
.quick-card:focus-visible {
  transform: translateY(-1px);
  border-color: rgba(79, 70, 229, 0.35);
}

.download-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.download-card {
  padding: 22px;
}

.download-link {
  display: inline-flex;
  margin-top: 10px;
  color: var(--accent);
  font-weight: 600;
}

.callout {
  padding: 20px;
  border-left: 3px solid var(--accent);
  background: rgba(79, 70, 229, 0.08);
  border-radius: 14px;
}

.faq-list {
  border-top: 1px solid var(--border);
}

details {
  border-bottom: 1px solid var(--border);
}

details summary {
  cursor: pointer;
  list-style: none;
  padding: 18px 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  font-weight: 600;
  color: var(--text);
}

details summary::-webkit-details-marker {
  display: none;
}

details summary::after {
  content: "+";
  color: var(--text-muted);
  font-size: 1.5rem;
  line-height: 1;
  transition: color 0.18s ease, transform 0.18s ease;
}

details[open] summary {
  color: var(--accent);
}

details[open] summary::after {
  content: "-";
  color: var(--accent);
}

.faq-answer {
  padding: 0 0 18px;
  color: var(--text-secondary);
}

.faq-answer p:last-child {
  margin-bottom: 0;
}

.table-wrap {
  overflow-x: auto;
  border: 1px solid var(--border);
  border-radius: 18px;
  background: var(--surface);
}

.comparison-table {
  width: 100%;
  min-width: 820px;
  border-collapse: collapse;
}

.comparison-table th,
.comparison-table td {
  border: 1px solid var(--border);
  padding: 12px 16px;
  vertical-align: top;
}

.comparison-table th {
  background: rgba(255, 255, 255, 0.05);
  color: var(--text);
  font-weight: 600;
  text-align: left;
}

.comparison-table th:not(:first-child),
.comparison-table td:not(:first-child) {
  text-align: center;
}

.check {
  color: var(--green);
  font-weight: 700;
}

.cross {
  color: var(--text-muted);
  font-weight: 700;
}

.anchor-card {
  display: block;
  padding: 22px;
  min-height: 100%;
  transition: transform 0.18s ease, border-color 0.18s ease;
}

.anchor-card:hover,
.anchor-card:focus-visible {
  transform: translateY(-1px);
  border-color: rgba(79, 70, 229, 0.35);
}

.site-footer {
  padding: 32px 0 48px;
  border-top: 1px solid var(--border);
}

.footer-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 14px 18px;
}

.footer-links a {
  color: var(--text-secondary);
  font-size: 0.95rem;
}

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

.footer-meta {
  color: var(--text-muted);
  font-size: 0.95rem;
}

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

.small {
  font-size: 0.92rem;
}

section[id] {
  scroll-margin-top: 96px;
}

:focus-visible {
  outline: 2px solid rgba(79, 70, 229, 0.7);
  outline-offset: 3px;
}

@media (max-width: 768px) {
  .container {
    width: min(100% - 24px, 1120px);
  }

  .header-inner {
    flex-direction: column;
    align-items: flex-start;
    padding: 16px 0;
  }

  .site-nav {
    gap: 14px 16px;
  }

  .hero {
    padding-top: 56px;
  }

  .hero-grid,
  .columns,
  .split,
  .quick-grid,
  .download-grid {
    grid-template-columns: 1fr;
  }

  h1 {
    max-width: none;
  }

  .section {
    padding: 56px 0;
  }

  .footer-inner {
    flex-direction: column;
    align-items: flex-start;
  }

  .comparison-table {
    min-width: 720px;
  }
}