:root {
  --bg: 255 100% 100%;
  --fg: 224 71% 4%;
  --muted: 220 8% 46%;
  --card: 0 0% 100%;
  --border: 214 32% 91%;
  --primary: 262 83% 58%;
  --accent: 199 89% 48%;
  --secondary: 210 40% 96%;
  --radius: 12px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, sans-serif;
  color: hsl(var(--fg));
  background: hsl(var(--bg));
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.container {
  max-width: 1120px;
  margin: auto;
  padding: 24px;
  flex: 1;
}

.header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: hsla(var(--bg), .8);
  backdrop-filter: saturate(180%) blur(10px);
  border-bottom: 1px solid hsl(var(--border));
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: inherit;
  font-weight: 800;
}

.logo {
  display: grid;
  place-items: center;
  width: 32px;
  height: 32px;
  border-radius: 8px;
  background: linear-gradient(135deg, hsl(var(--primary)), hsl(var(--accent)));
  color: #fff;
}

.brand-text {
  background: linear-gradient(90deg, hsl(var(--primary)), hsl(var(--accent)));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero {
  margin-top: 48px;
  padding: 64px 24px;
  border-radius: 20px;
  background: linear-gradient(135deg, hsl(var(--primary)), hsl(var(--accent)));
  color: #fff;
  text-align: center;
  position: relative;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border: 1px solid #fff4;
  background: #ffffff1a;
  color: #fff;
  border-radius: 999px;
  padding: 6px 10px;
  font-size: 12px;
}

.hero-title {
  margin: 12px 0 8px;
  font-size: 36px;
  line-height: 1.2;
}

.hero-sub {
  max-width: 500px;
  margin: 0 auto;
  opacity: 0.95;
}

.select-wrap {
  display: block;
  width: 100%;
  padding: 10px 14px;
  margin-top: 8px;
  border-radius: var(--radius);
  border: 1px solid hsl(var(--border));
  font-size: 16px;
  color: hsl(var(--fg));
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 44px;
  padding: 0 20px;
  border-radius: 12px;
  border: 1px solid hsl(var(--border));
  background: hsl(var(--primary));
  color: #fff;
  font-size: 16px;
  cursor: pointer;
  margin-top: 16px;
}

.btn:hover {
  filter: brightness(0.95);
}

.muted {
  color: hsl(var(--muted));
}

.footer {
  border-top: 1px solid hsl(var(--border));
  padding: 16px 0;
  text-align: center;
  font-size: 14px;
  color: hsl(var(--muted));
}

.label {
  display: block;
  text-align: left;
  margin-top: 16px;
  font-weight: 600;
}

.small {
  font-size: 14px;
}
body {
  background: url('assets/sky.png') no-repeat center center fixed;
  background-size: cover;
}
.signup-form {
  background: rgba(255, 255, 255, 0.85);
  padding: 2rem;
  border-radius: 12px;
  max-width: 400px;
  margin: auto;
}