:root {
  
  --bg: #05070f;
  --card: #0c1220;
  --border: #1e293b;
  
  --blue: #38bdf8;
  --green: #22c55e;
  
  --text: #e2e8f0;
  --text-dim: #94a3b8;
  
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: Inter, sans-serif;
}

body {
  background: linear-gradient(180deg, #030712, #020617);
  color: var(--text);
}

.container {
  max-width: 700px;
  margin: auto;
  padding: 20px;
}

.header {
  display: flex;
  align-items: center;
  gap: 15px;
  margin-bottom: 30px;
}

.back {
  color: var(--blue);
  font-size: 20px;
  text-decoration: none;
}

.hero {
  margin-bottom: 40px;
}

.hero h2 {
  font-size: 26px;
  margin-bottom: 10px;
  color: var(--blue);
}

.hero p {
  color: var(--text-dim);
  line-height: 1.6;
}

.cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-bottom: 40px;
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 20px;
  transition: .3s;
}

.card:hover {
  border-color: var(--blue);
  transform: translateY(-3px);
}

.card i {
  font-size: 26px;
  color: var(--blue);
  margin-bottom: 10px;
}

.card h3 {
  margin-bottom: 8px;
}

.card p {
  color: var(--text-dim);
  font-size: 14px;
}

.tips {
  margin-bottom: 40px;
}

.tips h2 {
  margin-bottom: 15px;
  color: var(--green);
}

.tips ul {
  padding-left: 18px;
}

.tips li {
  margin-bottom: 10px;
  color: var(--text-dim);
}

.contact {
  background: var(--card);
  border: 1px solid var(--border);
  padding: 25px;
  border-radius: 14px;
  text-align: center;
  margin-bottom: 30px;
}

.contact h2 {
  margin-bottom: 10px;
}

.contact p {
  color: var(--text-dim);
  margin-bottom: 20px;
}

.btn {
  display: inline-block;
  padding: 12px 24px;
  background: linear-gradient(90deg, #38bdf8, #22c55e);
  color: #000;
  font-weight: 700;
  border-radius: 10px;
  text-decoration: none;
}

.footer {
  text-align: center;
  color: var(--text-dim);
  font-size: 13px;
  margin-top: 20px;
}

.btn-back {
  
  display: inline-block;
  
  margin-bottom: 15px;
  
  color: #60a5fa;
  
  font-weight: 600;
  
  text-decoration: none;
  
  transition: 0.2s;
  
}

.btn-back:hover {
  
  color: #93c5fd;
  
  transform: translateX(-3px);
  
}