* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: radial-gradient(circle at top, #081a3a 0, #000814 40%, #000 100%);
  color: #f5f7ff;
}

/* Top bar / logo */
.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 14px 24px;
  background: rgba(0, 0, 0, 0.6);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.logo {
  font-weight: 700;
  letter-spacing: 1px;
}

.logo span {
  color: #3ef2ff;
}

/* Links */
nav a,
.link-btn {
  color: #e5ecff;
  text-decoration: none;
  margin-left: 16px;
  font-size: 0.9rem;
  border: none;
  background: none;
  cursor: pointer;
}

nav a:hover,
.link-btn:hover {
  text-decoration: underline;
}

/* Hero */
.hero {
  text-align: center;
  padding: 80px 20px 60px;
}

.hero h1 {
  font-size: 2.2rem;
  margin-bottom: 12px;
}

.hero p {
  color: #c1c7ff;
  max-width: 460px;
  margin: 0 auto 24px;
}

/* Buttons */
.btn {
  display: inline-block;
  padding: 10px 22px;
  border-radius: 999px;
  border: none;
  background: linear-gradient(135deg, #00c2ff, #4dff9c);
  color: #001427;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
}

.btn:hover {
  opacity: 0.9;
}

/* Auth cards */
.auth-container {
  max-width: 420px;
  margin: 80px auto;
  padding: 32px 24px;
  border-radius: 18px;
  background: radial-gradient(circle at top left, #12326b, #020615);
  box-shadow: 0 18px 80px rgba(0, 0, 0, 0.7);
  text-align: center;
}

.subtitle {
  color: #c1c7ff;
  font-size: 0.9rem;
  margin-bottom: 24px;
}

.auth-container form input {
  width: 100%;
  padding: 10px 12px;
  margin-bottom: 12px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  background: rgba(0, 0, 0, 0.35);
  color: #f5f7ff;
}

.auth-container form input::placeholder {
  color: #8892bf;
}

.auth-links {
  margin-top: 16px;
  font-size: 0.85rem;
}

.auth-links a {
  color: #4dff9c;
}

/* Dashboards */
.page {
  max-width: 900px;
  margin: 40px auto;
  padding: 0 16px 40px;
}

.card {
  margin-top: 24px;
  padding: 20px;
  border-radius: 16px;
  background: rgba(2, 8, 33, 0.95);
  border: 1px solid rgba(255, 255, 255, 0.06);
}

.list {
  padding-left: 20px;
}

.list li {
  margin-bottom: 6px;
}

/* Legal */
.legal {
  max-width: 720px;
  margin: 80px auto;
  padding: 0 16px;
  color: #e3e7ff;
}

.legal a {
  color: #4dff9c;
}

/* Misc */
.error-msg {
  color: #ff8080;
  margin-top: 6px;
  min-height: 18px;
}

.muted {
  color: #a3acd0;
  font-size: 0.9rem;
}

footer {
  text-align: center;
  padding: 16px;
  font-size: 0.8rem;
  color: #8f96c4;
}