/* Fonte base */
:root {
  --bg: #0f1420;
  --bg-2: #121826;
  --text: #e7ecf3;
  --muted: #b6c2d0;
  --primary: #4ade80; /* verde */
  --secondary: #60a5fa; /* azul */
  --card: #1b2436;
  --border: #27324a;
}
* {
  box-sizing: border-box;
}
html,
body {
  margin: 0;
  padding: 0;
}
body {
  font-family: "Poppins", system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
}
.container {
  width: min(1100px, 92%);
  margin: 0 auto;
}

/* Hero */
.hero {
  position: relative;
  min-height: 78vh;
  background: url("https://images.unsplash.com/photo-1619682288462-40eead0a57fb?q=80&w=2000&auto=format&fit=crop")
    center/cover no-repeat;
  display: grid;
  align-content: start;
}
.hero .overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    180deg,
    rgba(15, 20, 32, 0.6),
    rgba(15, 20, 32, 0.9)
  );
}
.nav {
  position: relative;
  z-index: 1;
  padding: 18px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.brand {
  font-weight: 800;
  letter-spacing: 0.5px;
}
.btn {
  display: inline-block;
  padding: 10px 16px;
  border-radius: 10px;
  text-decoration: none;
  font-weight: 600;
  transition: 0.2s;
}
.btn-primary {
  background: var(--primary);
  color: #0b0f17;
}
.btn-primary:hover {
  filter: brightness(1.05);
  transform: translateY(-1px);
}
.btn-secondary {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border);
}
.btn-secondary:hover {
  filter: brightness(1.05);
  border-color: var(--text);
  transform: translateY(-1px);
}
.hero-content {
  position: relative;
  z-index: 1;
  padding-top: 60px;
}
.hero h1 {
  font-size: clamp(32px, 4.5vw, 56px);
  margin: 10px 0;
}
.hero p {
  max-width: 800px;
  color: var(--muted);
  margin-bottom: 18px;
}
.cta {
  display: flex;
  gap: 12px;
}

/* Sections */
section {
  padding: 56px 0;
}
section h2 {
  font-size: 28px;
  margin-bottom: 22px;
}
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 18px;
}
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 18px;
}

/* How to */
.howto ol {
  padding-left: 18px;
}
.howto a {
  color: var(--secondary);
}

/* Join */
.join {
  padding-top: 24px;
  padding-bottom: 28px;
}
.join-grid .card code {
  background: #0b0f17;
  padding: 3px 6px;
  border-radius: 6px;
}

/* Server IP with copy button */
.server-ip {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 8px;
}
.copy-btn {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 4px 8px;
  cursor: pointer;
  font-size: 14px;
  color: var(--text);
  transition: 0.2s;
}
.copy-btn:hover {
  background: var(--border);
  transform: scale(1.05);
}
.copy-btn:active {
  transform: scale(0.95);
}

/* About (reduce space above) */
.about {
  padding-top: 20px;
}
.about a {
  color: var(--secondary);
  text-decoration: none;
}
.about a:hover {
  text-decoration: underline;
}

/* Footer */
.footer {
  border-top: 1px solid var(--border);
  background: var(--bg-2);
  padding: 22px 0;
  color: var(--muted);
  font-size: 14px;
}

/* Responsive tweaks */
@media (max-width: 640px) {
  .cta {
    flex-direction: column;
  }
}