:root {
  --bg: #0b1220;
  --bg-soft: #0f1a30;
  --card: #121c33;
  --text: #e8edf7;
  --muted: #a7b3c9;
  --primary: #4cc9f0;
  --accent: #ffd166;
  --border: #22324d;
  --shadow: 0 8px 30px rgba(0,0,0,0.25);
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Arial, Noto Sans, "Apple Color Emoji","Segoe UI Emoji";
  color: var(--text);
  background: linear-gradient(180deg, var(--bg) 0%, var(--bg-soft) 100%);
}

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 20px;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(11, 18, 32, 0.7);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
}
.brand-logo {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  object-fit: contain;
}
.brand-name {
  font-weight: 700;
  letter-spacing: 0.2px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 16px;
  border-radius: 10px;
  font-weight: 600;
  text-decoration: none;
  border: 1px solid transparent;
  transition: transform .08s ease, background .2s ease, border-color .2s ease, color .2s ease;
}
.btn:hover { transform: translateY(-1px); }
.btn:active { transform: translateY(0); }
.btn-primary {
  background: var(--primary);
  color: #07111f;
}
.btn-secondary {
  background: transparent;
  border-color: var(--border);
  color: var(--text);
}
.btn-accent {
  background: var(--accent);
  color: #1a1200;
}
.btn-lg {
  padding: 14px 22px;
  font-size: 1.05rem;
}

.hero {
  position: relative;
  min-height: 72vh;
  display: grid;
  align-items: center;
  border-bottom: 1px solid var(--border);
}
.hero-media {
  position: absolute;
  inset: 0;
  background-image: radial-gradient(ellipse at 70% 20%, rgba(76,201,240,0.12), transparent 45%),
    url("../img/streamduck_portada.png");
  background-size: cover;
  background-position: center;
  opacity: 0.3;
  filter: saturate(110%) contrast(105%);
}
.hero-content {
  position: relative;
  padding: 80px 0 60px;
}
.hero h1 {
  margin: 0 0 12px;
  font-size: clamp(2rem, 4vw, 3rem);
  line-height: 1.1;
}
.hero p {
  margin: 0 0 20px;
  font-size: clamp(1rem, 1.1vw, 1.15rem);
  color: var(--muted);
}
.cta-group {
  display: flex;
  align-items: center;
  gap: 14px;
}
.meta {
  font-size: 0.95rem;
  color: var(--muted);
}

.features, .audience, .requirements {
  padding: 48px 0;
}
.features h2, .audience h2, .requirements h2 {
  margin: 0 0 20px;
  font-size: 1.6rem;
}
.grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 18px;
}
.card {
  grid-column: span 6;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 18px 18px 4px;
  box-shadow: var(--shadow);
}
.card h3 {
  margin: 6px 6px 8px;
  font-size: 1.1rem;
}
.card ul {
  margin: 0 0 12px;
  padding-left: 22px;
  color: var(--muted);
}
.bullets {
  margin: 0;
  padding-left: 22px;
  color: var(--muted);
}

.screenshots {
  padding: 48px 0;
}
.screenshots h2 {
  margin: 0 0 20px;
  font-size: 1.6rem;
}
.shots-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 18px;
}
.shot {
  grid-column: span 6;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 14px;
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: transform .08s ease;
}
.shot:hover {
  transform: translateY(-2px);
}
.shot img {
  display: block;
  width: 100%;
  height: auto;
}
.shot figcaption {
  padding: 10px 12px;
  color: var(--muted);
  font-size: 0.95rem;
  border-top: 1px solid var(--border);
}

.site-footer {
  border-top: 1px solid var(--border);
}
.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 0;
}

.noscript {
  margin: 16px;
  padding: 14px 16px;
  border-radius: 10px;
  background: #fff3cd;
  color: #4a3b00;
}

@media (max-width: 900px) {
  .card { grid-column: span 12; }
  .hero { min-height: 64vh; }
  .cta-group { flex-direction: column; align-items: flex-start; }
  .shot { grid-column: span 12; }
}