:root {
  --bg: #0b0d10;
  --card: #121622;
  --text: #e7e9ee;
  --muted: #9aa0b2;
  --accent: #5b8cff;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
body {
  font-family: 'Inter', sans-serif;
  background: linear-gradient(180deg, #0b0d10, #0f1220);
  color: var(--text);
  line-height: 1.6;
}
a { color: var(--accent); text-decoration: none; }
.container { max-width: 1100px; margin: auto; padding: 64px 20px; }
header { position: sticky; top: 0; background: rgba(11,13,16,0.8); backdrop-filter: blur(10px); border-bottom: 1px solid #1a1f33; }
nav { max-width: 1100px; margin: auto; display: flex; justify-content: space-between; align-items: center; padding: 16px 20px; }
nav .logo { font-weight: 700; letter-spacing: 0.5px; }
nav ul { list-style: none; display: flex; gap: 30px; }
nav li a { color: var(--muted); font-size: 14px; }
nav li a:hover { color: var(--text); }
.hero { text-align: center; padding: 120px 20px 100px; }
.hero h1 { font-size: clamp(32px, 5vw, 56px); margin-bottom: 16px; }
.hero p { max-width: 720px; margin: auto; color: var(--muted); font-size: 18px; }
section { margin-top: 80px; }
h2 { font-size: 28px; margin-bottom: 16px; }
p.section-desc { color: var(--muted); max-width: 800px; }
.grid { display: grid; gap: 24px; margin-top: 32px; }
.grid-3 { grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }
.card { background: var(--card); border: 1px solid #1a1f33; border-radius: 14px; padding: 24px; }
.card h3 { margin-bottom: 8px; font-size: 18px; }
.card p { color: var(--muted); font-size: 14px; }
.clients span { display: inline-block; margin-right: 16px; color: var(--muted); }
form { max-width: 520px; margin-top: 32px; }
input, textarea {
  width: 100%;
  background: #0b0d18;
  border: 1px solid #1a1f33;
  border-radius: 10px;
  padding: 12px 14px;
  color: var(--text);
  margin-bottom: 14px;
  font-family: 'Inter', sans-serif;
}
textarea { min-height: 120px; resize: vertical; }
button {
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: 10px;
  padding: 12px 20px;
  cursor: pointer;
  font-weight: 600;
}
button:hover { opacity: 0.9; }
footer { margin-top: 120px; padding: 40px 20px; border-top: 1px solid #1a1f33; text-align: center; color: var(--muted); font-size: 14px; }




/* Hide checkbox */
#menu-toggle {
  display: none;
}

/* Hamburger */
.menu-icon {
  display: none;
  font-size: 26px;
  cursor: pointer;
  color: var(--text);
}

/* Overlay for click-outside */
.menu-overlay {
  display: none;
}

/* Mobile & tablet */
@media (max-width: 768px) {
  nav {
    position: relative;
  }

  .menu-icon {
    display: block;
  }

  .nav-links {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: rgba(11,13,16,0.95);
    backdrop-filter: blur(10px);
    flex-direction: column;
    border-bottom: 1px solid #1a1f33;
    display: none;
    z-index: 1000;
  }

nav ul { list-style: none; gap: 0px; }

  .nav-links li {
    border-top: 1px solid #1a1f33;
  }

  .nav-links li a {
    display: block;
    padding: 14px 20px;
    font-size: 16px;
  }

  /* Show menu when checked */
  #menu-toggle:checked ~ .nav-links {
    display: flex;
  }

  /* Overlay shown when menu is open */
  #menu-toggle:checked ~ .menu-overlay {
    display: block;
    position: fixed;
    inset: 0;
    background: transparent;
    z-index: 999;
  }
}