:root {
  color-scheme: dark;
  --bg: #0F172A;
  --surface: #111827;
  --surface-alt: #111827;
  --text: #F8FAFC;
  --muted: #CBD5E1;
  --accent: #38BDF8;
  --accent-dark: #0EA5E9;
  --border: #0F172A;
  --shadow: 0 12px 24px rgba(15, 23, 42, 0.6);
  --radius: 16px;
  --max-width: 1100px;
  --space-1: 8px;
  --space-2: 12px;
  --space-3: 16px;
  --space-4: 24px;
  --space-5: 32px;
  --space-6: 48px;
  --space-7: 64px;
  --font-sans: "Segoe UI", "Helvetica Neue", "Noto Sans", "Liberation Sans", Arial, sans-serif;
}

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

body {
  margin: 0;
  font-family: var(--font-sans);
  color: var(--text);
  background: radial-gradient(circle at top, #111827 0%, var(--bg) 45%, #0F172A 100%);
  line-height: 1.6;
}

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

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

a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 3px;
}

.skip-link {
  position: absolute;
  top: -40px;
  left: var(--space-3);
  background: var(--surface);
  color: var(--text);
  padding: var(--space-2) var(--space-3);
  border-radius: 999px;
  box-shadow: var(--shadow);
  z-index: 1000;
}

.skip-link:focus {
  top: var(--space-3);
}

.container {
  width: min(var(--max-width), 90vw);
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 200;
  background: rgba(15, 23, 42, 0.9);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  padding: var(--space-3) 0;
}

.brand {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-weight: 600;
}

.brand img {
  width: 46px;
  height: 46px;
  object-fit: contain;
}

.brand-text {
  display: none;
  font-size: 1.1rem;
}

.nav {
  display: flex;
  gap: var(--space-4);
  font-size: 0.95rem;
}

.nav a {
  position: relative;
  color: var(--muted);
}

.nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -6px;
  width: 0;
  height: 2px;
  background: var(--accent);
  transition: width 0.2s ease;
}

.nav a:hover::after,
.nav a:focus-visible::after {
  width: 100%;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 22px;
  border-radius: 999px;
  background: var(--accent);
  color: var(--text);
  font-weight: 600;
  border: 1px solid transparent;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.button:hover,
.button:focus-visible {
  background: var(--accent-dark);
  box-shadow: 0 10px 18px rgba(56, 189, 248, 0.25);
  transform: translateY(-1px);
}

.button-outline {
  background: transparent;
  color: var(--accent);
  border-color: var(--accent);
}

.button-outline:hover,
.button-outline:focus-visible {
  background: rgba(56, 189, 248, 0.12);
}

.button-ghost {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text);
}

.button-ghost:hover,
.button-ghost:focus-visible {
  border-color: var(--accent);
  color: var(--accent);
}

.hero {
  padding: var(--space-7) 0 var(--space-6);
}

.hero-landing {
  position: relative;
  min-height: 70vh;
  display: flex;
  align-items: center;
  text-align: center;
  background-image: url("hero-rssoftware.png");
  background-size: cover;
  background-position: center;
  overflow: hidden;
}

.hero-landing::before {
  content: "";
  position: absolute;
  inset: 0;
  background: rgba(15, 23, 42, 0.58);
}

.hero-landing-content {
  position: relative;
  z-index: 1;
  width: min(720px, 90vw);
  margin: 0 auto;
}

.hero-landing h1 {
  font-size: clamp(2.6rem, 5vw, 3.8rem);
  margin-bottom: var(--space-2);
}

.hero-landing-subhead {
  margin: 0 0 var(--space-4);
  font-size: clamp(1.1rem, 2.4vw, 1.4rem);
  color: var(--muted);
}

.hero-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-6);
  align-items: center;
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.75rem;
  color: var(--muted);
}

.hero h1 {
  font-size: clamp(2.5rem, 4vw, 3.4rem);
  margin: var(--space-2) 0 var(--space-1);
}

.subhead {
  font-size: 1.25rem;
  color: var(--accent);
  margin: 0 0 var(--space-3);
}

.lead {
  font-size: 1.05rem;
  color: var(--muted);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin: var(--space-4) 0 var(--space-3);
}

.availability {
  font-weight: 600;
  color: var(--text);
}

.hero-card {
  padding: var(--space-5);
  background: var(--surface);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
}

.hero-card h2 {
  margin-top: 0;
}

.trust-strip {
  padding: var(--space-4) 0;
  background: var(--surface-alt);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.trust-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: var(--space-3);
  text-align: center;
  font-weight: 600;
  color: var(--muted);
}

.section {
  padding: var(--space-6) 0;
}

.section.alt {
  background: var(--surface-alt);
}

.section h2 {
  font-size: clamp(1.75rem, 3vw, 2.3rem);
  margin-bottom: var(--space-2);
}

.section-intro {
  max-width: 620px;
  color: var(--muted);
}

.two-col {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: var(--space-5);
  align-items: start;
}

.card {
  background: var(--surface);
  border-radius: var(--radius);
  padding: var(--space-4);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
}

.card ul {
  padding-left: 20px;
  margin: var(--space-3) 0 0;
  color: var(--muted);
}

.grid {
  margin-top: var(--space-4);
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: var(--space-4);
}

.steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: var(--space-4);
  margin-top: var(--space-4);
}

.step {
  padding: var(--space-4);
  border-left: 4px solid var(--accent);
  background: var(--surface);
  border-radius: var(--radius);
}

.contact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-5);
  align-items: start;
}

.contact-details {
  margin-top: var(--space-3);
  font-weight: 600;
}

.note,
.form-note {
  font-size: 0.9rem;
  color: var(--muted);
}

.contact-form label {
  font-weight: 600;
  margin-top: var(--space-3);
  display: block;
}

.contact-form input,
.contact-form textarea,
.contact-form select {
  width: 100%;
  padding: 12px 14px;
  border-radius: 12px;
  border: 1px solid #334155;
  margin-top: var(--space-1);
  background: #162033;
  color: var(--text);
  font-family: inherit;
  font-size: 0.95rem;
}

.contact-form input:focus,
.contact-form textarea:focus,
.contact-form select:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(56, 189, 248, 0.2);
  outline: none;
}

.contact-form button {
  margin-top: var(--space-4);
  width: 100%;
}

.optional {
  color: var(--muted);
  font-weight: 500;
}

.site-footer {
  padding: var(--space-5) 0;
  border-top: 1px solid var(--border);
  background: var(--surface-alt);
}

.footer-inner {
  display: grid;
  gap: var(--space-2);
  text-align: center;
  color: var(--muted);
}

@media (max-width: 860px) {
  .header-inner {
    flex-wrap: wrap;
    justify-content: center;
  }

  .nav {
    order: 3;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--space-3);
  }
}

@media (max-width: 640px) {
  .site-header {
    position: static;
  }

  .hero {
    padding-top: var(--space-5);
  }

  .hero-landing {
    min-height: 60vh;
  }

  .brand-text {
    display: inline;
  }
}