*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
:root {
  --bg: #0a0f1a; --bg-mid: #0e1625; --bg-hi: #162032;
  --border: #1e2d40; --text: #e6edf3; --text-sec: #8b949e; --text-dim: #4a5568;
  --teal: #40C8E0; --teal-dark: #0C5880; --good: #3fb950; --bad: #f85149;
}
body {
  background: var(--bg); color: var(--text);
  font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
  font-size: 15px; min-height: 100vh;
}
a { color: var(--teal); text-decoration: none; }
a:hover { text-decoration: underline; }

/* Nav */
nav {
  background: var(--bg-mid); border-bottom: 1px solid var(--border);
  padding: 14px 32px; display: flex; align-items: center; gap: 16px;
}
.nav-brand {
  font-size: 22px; font-weight: 700; letter-spacing: 3px;
  background: linear-gradient(90deg, var(--teal), var(--teal-dark));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
}
.nav-links { margin-left: auto; display: flex; gap: 24px; font-size: 13px; color: var(--text-sec); }
.nav-links a { color: var(--text-sec); }
.nav-links a:hover { color: var(--teal); text-decoration: none; }

/* Hero */
.hero {
  text-align: center; padding: 90px 32px 70px;
  background: radial-gradient(ellipse at 50% 0%, #0a2540 0%, var(--bg) 70%);
}
.hero-eyebrow { font-size: 11px; letter-spacing: 4px; text-transform: uppercase; color: var(--teal); margin-bottom: 18px; }
.hero h1 { font-size: 48px; font-weight: 700; letter-spacing: -0.5px; line-height: 1.1; margin-bottom: 20px; }
.hero h1 span { background: linear-gradient(135deg, var(--teal), var(--teal-dark)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }
.hero p { font-size: 18px; color: var(--text-sec); max-width: 560px; margin: 0 auto 36px; line-height: 1.6; }
.hero-cta { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }
.btn {
  padding: 11px 26px; border-radius: 7px; font-size: 14px; font-weight: 600;
  cursor: pointer; border: none; text-decoration: none; display: inline-block; transition: opacity .15s;
}
.btn:hover { opacity: .85; text-decoration: none; }
.btn-primary { background: var(--teal); color: #0a0f1a; }
.btn-secondary { background: transparent; border: 1px solid var(--border); color: var(--text); }

/* Products */
.products { padding: 64px 32px; max-width: 1100px; margin: 0 auto; }
.products h2 { text-align: center; font-size: 26px; font-weight: 600; margin-bottom: 40px; }
.card-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 24px; }
.card {
  background: var(--bg-mid); border: 1px solid var(--border); border-radius: 12px; padding: 32px;
  transition: border-color .2s;
}
.card:hover { border-color: var(--teal); }
.card-icon { font-size: 32px; margin-bottom: 16px; }
.card h3 { font-size: 20px; font-weight: 600; margin-bottom: 10px; }
.card p { color: var(--text-sec); line-height: 1.6; margin-bottom: 24px; font-size: 14px; }
.card ul { list-style: none; margin-bottom: 28px; }
.card ul li { color: var(--text-sec); font-size: 13px; padding: 4px 0; }
.card ul li::before { content: "✓  "; color: var(--teal); }

/* Form page */
.form-wrap { display: flex; align-items: flex-start; justify-content: center; padding: 64px 24px; }
.form-card { background: var(--bg-mid); border: 1px solid var(--border); border-radius: 12px; padding: 40px; width: 100%; max-width: 480px; }
.form-card h1 { font-size: 24px; font-weight: 700; margin-bottom: 6px; }
.form-card .sub { color: var(--text-sec); font-size: 13px; margin-bottom: 28px; }
label { display: block; font-size: 12px; color: var(--text-sec); margin-bottom: 5px; margin-top: 16px; }
input, select {
  width: 100%; background: var(--bg-hi); border: 1px solid var(--border); border-radius: 6px;
  color: var(--text); font-size: 14px; padding: 9px 12px; outline: none;
}
input:focus, select:focus { border-color: var(--teal); }
.submit-btn { width: 100%; margin-top: 24px; padding: 11px; font-size: 15px; }
.success { display: none; background: rgba(63,185,80,.1); border: 1px solid rgba(63,185,80,.3); border-radius: 8px; padding: 18px; color: var(--good); font-size: 14px; text-align: center; margin-top: 20px; }
.err-msg { color: var(--bad); font-size: 13px; margin-top: 10px; min-height: 18px; }
.back-link { display: block; text-align: center; margin-top: 18px; font-size: 13px; color: var(--text-sec); }

/* Footer */
footer {
  border-top: 1px solid var(--border); padding: 28px 32px;
  display: flex; justify-content: space-between; align-items: center;
  color: var(--text-dim); font-size: 12px; flex-wrap: wrap; gap: 12px;
}