* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Segoe UI', Arial, sans-serif;
  background: linear-gradient(120deg, #23263a 0%, #181a23 100%);
  color: #e5e7ef;
  min-height: 100vh;
  margin: 0;
  display: flex;
  flex-direction: column;
}

header {
  width: 100%;
  background: #2563eb;
  color: #fff;
  padding: 24px 0 18px 0;
  text-align: center;
  box-shadow: 0 2px 12px #2563eb22;
  letter-spacing: 2px;
  font-size: 1.7rem;
  font-weight: 700;
}

main {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 40px 10px;
}

.card {
  background: #23263a;
  border-radius: 20px;
  box-shadow: 0 8px 32px #11131a88;
  padding: 48px 36px 36px 36px;
  max-width: 420px;
  width: 100%;
  text-align: center;
  border: 2px solid #2563eb33;
  transition: box-shadow 0.2s;
}

.card:hover {
  box-shadow: 0 12px 40px #2563eb33;
}

h1 {
  font-size: 2.1rem;
  color: #2563eb;
  margin-bottom: 0.7rem;
  font-weight: 800;
  letter-spacing: 1px;
}

.version {
  font-size: 1.1rem;
  color: #a5b4fc;
  margin-bottom: 1.5rem;
  font-weight: 600;
}

esp-web-install-button {
  margin-bottom: 28px;
  transform: scale(1.18);
  --install-button-background: #2563eb;
  --install-button-color: #fff;
  --install-button-border-radius: 12px;
  --install-button-hover-background: #1d4ed8;
}

.console {
  background: #181a23;
  color: #e5e7ef;
  font-family: 'Fira Mono', 'Consolas', monospace;
  font-size: 0.98rem;
  height: 120px;
  overflow-y: auto;
  padding: 12px 16px;
  border-radius: 10px;
  text-align: left;
  white-space: pre-wrap;
  margin-bottom: 22px;
  border: 1.5px solid #2563eb33;
  box-shadow: 0 1px 4px #2563eb11 inset;
}

.instructions {
  font-size: 1.03rem;
  color: #60a5fa;
  background: #181a23;
  padding: 10px 0;
  border-radius: 8px;
  margin-bottom: 0;
  font-weight: 500;
}

footer {
  padding: 18px 0 12px 0;
  text-align: center;
  background: #181a23;
  color: #a5b4fc;
  font-size: 0.93rem;
  border-top: 1.5px solid #2563eb22;
  user-select: none;
}

footer a {
  color: #60a5fa;
  text-decoration: underline;
  font-weight: 600;
}

footer a:hover {
  color: #1d4ed8;
  text-decoration: none;
}