:root {
  --bg: #f5f7ff;
  --bg-soft: #e7ecff;
  --accent: #2563eb;
  --accent-strong: #1d4ed8;
  --text: #0f172a;
  --text-muted: rgba(15, 23, 42, 0.6);
  --surface: rgba(255, 255, 255, 0.88);
  --border: rgba(37, 99, 235, 0.18);
  --max-width: 1100px;
  --shadow: 0 16px 40px rgba(15, 23, 42, 0.12);
  --radius-lg: 24px;
  --radius-md: 16px;
  --radius-sm: 10px;
  font-family: "Inter", "Segoe UI", Roboto, -apple-system, BlinkMacSystemFont,
    "Helvetica Neue", sans-serif;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  letter-spacing: 0.01em;
  font-family: "Inter", "Segoe UI", Roboto, -apple-system, BlinkMacSystemFont,
    "Helvetica Neue", sans-serif;
}

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

a:hover,
a:focus {
  color: var(--accent);
}

img {
  width: 100%;
  display: block;
  border-radius: var(--radius-md);
  object-fit: cover;
  background: var(--surface);
}

.container {
  width: min(100% - 3rem, var(--max-width));
  margin: 0 auto;
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.3em;
  font-size: 0.75rem;
  color: var(--accent);
  margin-bottom: 1rem;
}

h1,
h2,
h3 {
  line-height: 1.2;
  font-weight: 600;
}

p + p {
  margin-top: 1rem;
}

ul {
  list-style: disc;
  padding-left: 1.2rem;
  margin-top: 1rem;
  color: var(--text-muted);
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.4rem;
  border-radius: 999px;
  border: 1px solid transparent;
  font-weight: 600;
  transition: transform 120ms ease, box-shadow 120ms ease,
    background-color 150ms ease;
}

.button.primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-strong));
  color: #ffffff;
  box-shadow: 0 12px 24px rgba(37, 99, 235, 0.28);
}

.button.primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 16px 32px rgba(29, 78, 216, 0.35);
}

.button.secondary {
  border: 1px solid rgba(37, 99, 235, 0.3);
  color: var(--accent);
  background: rgba(255, 255, 255, 0.65);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: blur(16px);
  background: rgba(245, 247, 255, 0.9);
  border-bottom: 1px solid var(--border);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.1rem 0;
}

.branding {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-weight: 600;
}

.logo-mark {
  width: 42px;
  height: 42px;
  border-radius: 14px;
  object-fit: cover;
  box-shadow: 0 8px 16px rgba(37, 99, 235, 0.28);
}

.site-nav {
  display: flex;
  gap: 1.25rem;
  font-size: 0.95rem;
  color: var(--text-muted);
}

.site-nav a {
  position: relative;
  padding-bottom: 2px;
}

.site-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -4px;
  width: 100%;
  height: 2px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 150ms ease;
}

.site-nav a:hover::after,
.site-nav a:focus::after {
  transform: scaleX(1);
}

.hero {
  padding: 6rem 0 5rem;
  background:
    radial-gradient(circle at 10% 20%, rgba(37, 99, 235, 0.14), transparent 55%),
    radial-gradient(circle at 90% 10%, rgba(29, 78, 216, 0.1), transparent 45%);
}

.hero .container {
  display: grid;
  gap: 3rem;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  align-items: center;
}

.hero h1 {
  font-size: clamp(2.5rem, 4vw, 3.25rem);
  margin-bottom: 1.25rem;
}

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

.hero-actions {
  display: flex;
  gap: 1rem;
  margin-top: 2rem;
  flex-wrap: wrap;
}

.product,
.features,
.downloads,
.roadmap,
.about,
.contact {
  padding: 5rem 0;
}

.product .container,
.about .container {
  display: grid;
  gap: 3.5rem;
  align-items: center;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.product ul li {
  margin-bottom: 0.6rem;
}

.product-visual {
  background: var(--surface);
  padding: 1.5rem;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
}

.product-visual figcaption {
  color: var(--text-muted);
  margin-top: 1rem;
  text-align: center;
}

.features .feature-list {
  display: flex;
  flex-direction: column;
  gap: 3rem;
  margin-top: 2.5rem;
}

.features .feature-item {
  display: flex;
  align-items: center;
  gap: 3rem;
  background: var(--surface);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  border: 1px solid rgba(37, 99, 235, 0.16);
  box-shadow: 0 20px 44px rgba(15, 23, 42, 0.12);
}

.features .feature-item:nth-child(even) {
  flex-direction: row-reverse;
}

.features .feature-copy {
  flex: 1 1 320px;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.features h3 {
  margin-bottom: 0.25rem;
}

.features .feature-media {
  flex: 1 1 360px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid rgba(37, 99, 235, 0.12);
  box-shadow: 0 16px 32px rgba(15, 23, 42, 0.14);
}

.features .feature-media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.downloads {
  background: rgba(231, 236, 255, 0.75);
}

.download-grid {
  display: grid;
  gap: 1.8rem;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  margin-top: 2.5rem;
}

.download-grid article {
  background: var(--surface);
  padding: 2rem;
  border-radius: var(--radius-md);
  border: 1px solid rgba(37, 99, 235, 0.16);
  display: flex;
  flex-direction: column;
  gap: 1rem;
  box-shadow: 0 10px 24px rgba(15, 23, 42, 0.1);
}

.download-grid .coming-soon {
  align-items: flex-start;
  color: var(--text-muted);
}

.tag {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.35rem 0.8rem;
  border-radius: 999px;
  background: rgba(37, 99, 235, 0.12);
  color: var(--accent);
  border: 1px solid rgba(37, 99, 235, 0.2);
  font-size: 0.8rem;
  font-weight: 600;
}

.roadmap-list {
  display: grid;
  gap: 1.5rem;
  margin-top: 2.4rem;
}

.milestone {
  display: flex;
  gap: 1.5rem;
  align-items: center;
  background: var(--surface);
  padding: 1.5rem 1.8rem;
  border-radius: var(--radius-md);
  border: 1px solid rgba(37, 99, 235, 0.14);
}

.timeframe {
  min-width: 76px;
  display: inline-block;
  font-weight: 600;
  color: var(--accent);
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.about .about-visual {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
}

.contact {
  background: linear-gradient(160deg, rgba(37, 99, 235, 0.12), transparent);
}

.contact-card {
  background: rgba(255, 255, 255, 0.95);
  border-radius: var(--radius-lg);
  padding: 3rem;
  border: 1px solid rgba(37, 99, 235, 0.18);
  box-shadow: var(--shadow);
  max-width: 620px;
  margin: 0 auto;
  text-align: left;
}

.contact form {
  margin-top: 2rem;
}

.contact label {
  display: block;
  font-size: 0.82rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 0.75rem;
}

.input-group {
  display: flex;
  gap: 0.75rem;
}

input[type="email"] {
  flex: 1;
  padding: 0.85rem 1rem;
  border-radius: 999px;
  border: 1px solid rgba(37, 99, 235, 0.3);
  background: rgba(255, 255, 255, 0.9);
  color: var(--text);
  font-size: 1rem;
}

input[type="email"]::placeholder {
  color: rgba(15, 23, 42, 0.45);
}

.legal {
  margin-top: 1.5rem;
  font-size: 0.85rem;
  color: var(--text-muted);
}

.site-footer {
  padding: 3rem 0;
  border-top: 1px solid var(--border);
  background: rgba(231, 236, 255, 0.85);
}

.site-footer .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1.5rem;
}

.footer-branding {
  display: flex;
  gap: 0.75rem;
  align-items: center;
}

.footer-meta {
  color: var(--text-muted);
  font-size: 0.9rem;
}

@media (max-width: 960px) {
  .hero .container,
  .product .container,
  .about .container {
    grid-template-columns: 1fr;
  }

  .hero-visual {
    order: -1;
  }

  .site-nav {
    display: none;
  }

  .features .feature-item,
  .features .feature-item:nth-child(even) {
    flex-direction: column;
    padding: 2rem;
  }

  .features .feature-media {
    width: 100%;
  }
}

@media (max-width: 720px) {
  .container {
    width: min(100% - 2.2rem, var(--max-width));
  }

  .contact-card {
    padding: 2.4rem;
  }

  .input-group {
    flex-direction: column;
  }

  input[type="email"],
  .button {
    width: 100%;
  }
}

@media (max-width: 540px) {
  .features .feature-grid {
    grid-template-columns: 1fr;
  }

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

  .hero {
    padding-top: 4.5rem;
  }
}