:root {
  --color-bg: #101114;
  --color-bg-soft: #14171c;
  --color-surface: #1a1f27;
  --color-surface-strong: #222936;
  --color-text: #f4f7f5;
  --color-muted: #a9b3ad;
  --color-border: #323a46;
  --color-primary: #28d79f;
  --color-primary-strong: #17a782;
  --color-accent: #ffb454;
  --color-accent-soft: rgba(255, 180, 84, 0.14);
  --color-shadow: rgba(0, 0, 0, 0.28);
  --space-page: clamp(1rem, 4vw, 3rem);
  --space-section: clamp(3.5rem, 8vw, 6rem);
  --radius-sm: 6px;
  --radius-md: 8px;
  --font-body: Arial, Helvetica, sans-serif;
  --font-weight-bold: 700;
  color: var(--color-text);
  background: var(--color-bg);
  font-family: var(--font-body);
  line-height: 1.5;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--color-text);
  background: var(--color-bg);
}

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

.site-header,
.site-footer {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem var(--space-page);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  border-bottom: 1px solid var(--color-border);
  background: rgba(16, 17, 20, 0.94);
  backdrop-filter: blur(14px);
}

.brand-logo {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  min-width: 0;
  font-weight: var(--font-weight-bold);
}

.brand-mark {
  display: inline-grid;
  width: 2.4rem;
  height: 2.4rem;
  flex: 0 0 auto;
  place-items: center;
  border: 1px solid rgba(40, 215, 159, 0.48);
  border-radius: var(--radius-sm);
  color: var(--color-bg);
  background: var(--color-primary);
  box-shadow: 0 0 0 4px rgba(40, 215, 159, 0.12);
  font-size: 0.85rem;
  letter-spacing: 0;
}

.brand-name {
  color: var(--color-text);
  font-size: 1.12rem;
}

.site-nav,
.site-footer nav {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.95rem;
  font-weight: 600;
}

.site-nav a,
.site-footer a {
  border-radius: var(--radius-sm);
  color: var(--color-muted);
  padding: 0.45rem 0.65rem;
}

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

main {
  width: 100%;
}

.hero {
  display: grid;
  min-height: 62vh;
  place-items: center;
  padding: var(--space-section) var(--space-page);
  text-align: center;
  background: var(--color-bg);
}

.hero-content {
  width: min(100%, 840px);
}

.hero h1 {
  margin: 0;
  color: var(--color-text);
  font-size: clamp(2.4rem, 7vw, 5rem);
  line-height: 1.05;
}

.hero p {
  max-width: 700px;
  margin: 1.25rem auto 0;
  color: var(--color-muted);
  font-size: clamp(1rem, 2vw, 1.25rem);
}

.cta-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 3rem;
  margin-top: 2rem;
  border: 1px solid rgba(40, 215, 159, 0.7);
  border-radius: var(--radius-md);
  padding: 0.85rem 1.5rem;
  color: var(--color-bg);
  background: var(--color-primary);
  box-shadow: 0 12px 32px rgba(40, 215, 159, 0.18);
  font: inherit;
  font-weight: var(--font-weight-bold);
  cursor: pointer;
  transition: background 160ms ease, border-color 160ms ease, transform 160ms ease;
}

.cta-button:hover {
  border-color: var(--color-accent);
  background: var(--color-accent);
  transform: translateY(-1px);
}

.cta-button:focus-visible,
.site-nav a:focus-visible,
.site-footer a:focus-visible,
.brand-logo:focus-visible {
  outline: 3px solid var(--color-accent);
  outline-offset: 3px;
}

.features {
  padding: var(--space-section) var(--space-page);
  border-top: 1px solid var(--color-border);
  background: var(--color-bg-soft);
}

.section-heading {
  width: min(100%, 760px);
  margin: 0 auto 2rem;
  text-align: center;
}

.section-heading h2 {
  margin: 0;
  color: var(--color-text);
  font-size: clamp(1.8rem, 4vw, 2.6rem);
}

.section-heading p {
  margin: 0.75rem 0 0;
  color: var(--color-muted);
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
  width: min(100%, 1080px);
  margin: 0 auto;
}

.feature-card {
  min-height: 190px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  background: var(--color-surface);
  box-shadow: 0 18px 44px var(--color-shadow);
}

.feature-card h3 {
  margin: 0;
  color: var(--color-text);
  font-size: 1.15rem;
}

.feature-card h3::after {
  display: block;
  width: 2.4rem;
  height: 3px;
  margin-top: 0.75rem;
  border-radius: 999px;
  background: var(--color-accent);
  content: "";
}

.feature-card p {
  margin: 1rem 0 0;
  color: var(--color-muted);
}

.site-footer {
  flex-wrap: wrap;
  border-top: 1px solid var(--color-border);
  background: #0c0d10;
  color: var(--color-text);
}

.site-footer p {
  margin: 0;
  color: var(--color-muted);
}

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

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

.page-content {
  min-height: calc(100vh - 145px);
  padding: var(--space-section) var(--space-page);
  background: var(--color-bg);
}

.page-intro {
  width: min(100%, 820px);
  margin: 0 auto;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: clamp(1.5rem, 5vw, 3rem);
  background: var(--color-surface);
  box-shadow: 0 18px 44px var(--color-shadow);
}

.eyebrow {
  display: inline-flex;
  margin: 0 0 1rem;
  border: 1px solid rgba(255, 180, 84, 0.38);
  border-radius: 999px;
  padding: 0.25rem 0.65rem;
  color: var(--color-accent);
  background: var(--color-accent-soft);
  font-size: 0.82rem;
  font-weight: var(--font-weight-bold);
  letter-spacing: 0;
  text-transform: uppercase;
}

.page-intro h1 {
  margin: 0;
  color: var(--color-text);
  font-size: clamp(2.2rem, 6vw, 4rem);
  line-height: 1.08;
}

.page-intro p {
  max-width: 700px;
  color: var(--color-muted);
  font-size: 1.05rem;
}

@media (max-width: 760px) {
  .site-header,
  .site-footer {
    align-items: flex-start;
    flex-direction: column;
  }

  .site-nav,
  .site-footer nav {
    flex-wrap: wrap;
  }

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

@media (max-width: 420px) {
  .brand-name {
    font-size: 1rem;
  }

  .site-nav a,
  .site-footer a {
    padding-inline: 0.5rem;
  }
}