body {
  font-family: Arial, sans-serif;
  background: #0f172a;
  color: #e2e8f0;
  margin: 0;
}

/* FIX: unify layout width */
.container {
  max-width: 1100px;
  margin: 50px auto;
  padding: 20px;
  box-sizing: border-box;
}

/* HEADINGS */
h1 {
  font-size: 32px;
}

.subtitle {
  color: #94a3b8;
  margin-bottom: 20px;
}

/* ❌ FIX: remove global flex form */
form {
  margin-bottom: 20px;
}

/* INPUTS */
input,
textarea {
  width: 100%;
  padding: 12px;
  border-radius: 6px;
  border: 1px solid #334155;
  background: #1e293b;
  color: white;
  box-sizing: border-box;
}

/* BUTTONS */
button {
  padding: 12px 20px;
  background: #3b82f6;
  border: none;
  border-radius: 6px;
  color: white;
  cursor: pointer;
  margin-top: 10px;
}

button:hover {
  background: #2563eb;
}

/* RESULTS */
.results {
  margin-top: 20px;
}

/* FIX: ensure cards always match container width */
.card {
  background: #1e293b;
  padding: 15px;
  border-radius: 8px;
  margin-bottom: 10px;
  width: 100%;
  box-sizing: border-box;
}

/* STATUS COLORS */
.card.ok {
  border-left: 5px solid #22c55e;
}

.card.fail {
  border-left: 5px solid #ef4444;
}

.card.warning {
  border-left: 5px solid yellow;
}

/* CODE BLOCKS */
code {
  display: block;
  margin-top: 10px;
  background: #0f172a;
  padding: 10px;
  border-radius: 6px;
  word-break: break-all;
}

/* FORCE SCROLLBAR CONSISTENCY */
html {
  overflow-y: scroll;
}

/* HEADER */
header {
  background: #ffffff;
  border-bottom: 1px solid #ddd;
}

.navbar {
  max-width: 1100px;
  margin: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 20px;
}

.logo {
  font-weight: bold;
  font-size: 20px;
  color: #2c6ed5;
}

nav a {
  margin-left: 20px;
  text-decoration: none;
  color: #333;
  font-weight: 500;
}

nav a:hover {
  color: #2c6ed5;
}

/* FOOTER */
footer {
  text-align: center;
  padding: 20px;
  margin-top: 60px;
  border-top: 1px solid #ddd;
  background: #ffffff;
}

footer a {
  color: #2c6ed5;
  text-decoration: none;
}

footer a:hover {
  text-decoration: underline;
}

/* MOBILE */
@media (max-width: 700px) {
  .navbar {
    flex-direction: column;
    align-items: flex-start;
  }

  nav {
    margin-top: 10px;
  }

  .tools {
    flex-direction: column;
    align-items: center;
  }
}