:root {
  --primary: #00c6ff;
  --primary-hover: #007ab3;
  --bg-dark: #141e30;
  --bg-mid: #243b55;
  --surface: #1f1f1f;
  --text: #fff;
  --muted: #ccc;
  --danger: #ff4444;
  --font: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: var(--font);
  color: var(--text);
}

a {
  color: var(--muted);
}

.site-body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background: linear-gradient(to right, var(--bg-dark), var(--bg-mid));
}

.site-header,
.site-footer {
  padding: 20px 40px;
  background: rgba(0, 0, 0, 0.2);
}

.site-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
}

.site-header h1,
.site-header .brand {
  margin: 0;
  font-size: 1.35rem;
}

.site-header a.brand {
  color: var(--text);
  text-decoration: none;
  font-weight: 700;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.site-main {
  flex: 1;
  padding: 40px 20px;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 20px;
}

.site-footer {
  text-align: center;
  font-size: 13px;
  color: var(--muted);
}

.site-footer a {
  margin: 0 6px;
  text-decoration: none;
}

.btn {
  padding: 12px 24px;
  font-size: 16px;
  background: var(--primary);
  color: #000;
  border: none;
  border-radius: 6px;
  cursor: pointer;
  text-decoration: none;
  display: inline-block;
  transition: background 0.3s ease, color 0.3s ease;
}

.btn:hover {
  background: var(--primary-hover);
  color: #fff;
}

.btn-danger {
  background: var(--danger);
  color: #fff;
}

.btn-danger:hover {
  background: #cc3333;
  color: #fff;
}

.btn-ghost {
  background: transparent;
  color: var(--text);
  border: 1px solid rgba(255, 255, 255, 0.35);
}

.username-box {
  font-size: 26px;
  margin: 8px 0;
  padding: 12px 24px;
  background: var(--surface);
  border-radius: 10px;
  cursor: pointer;
  user-select: all;
  border: 2px dashed var(--primary);
  max-width: 90%;
  word-break: break-word;
}

.hint {
  color: var(--muted);
  font-size: 14px;
  margin: 0;
}

.user-meta {
  font-size: 0.95rem;
}

#history-section {
  margin-top: 20px;
  width: 100%;
  max-width: 500px;
  text-align: left;
}

#history-section h2 {
  margin-bottom: 10px;
  font-size: 1.25rem;
}

#username-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

#username-list li {
  padding: 10px;
  margin-bottom: 8px;
  background: var(--surface);
  border-left: 4px solid var(--primary);
  border-radius: 6px;
}

/* Legal / contact pages */
.legal-body {
  background: #f4f4f4;
  color: #333;
  padding: 40px 20px;
  line-height: 1.6;
}

.legal-wrap {
  max-width: 800px;
  margin: 0 auto;
}

.legal-wrap h1,
.legal-wrap h2 {
  color: #222;
}

.legal-nav {
  margin-bottom: 24px;
}

.legal-nav a {
  color: #3366cc;
}

.contact-form {
  background: #fff;
  padding: 20px;
  border-radius: 8px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.contact-form label {
  display: block;
  margin-bottom: 6px;
  font-weight: 700;
  color: #555;
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  padding: 8px 10px;
  margin-bottom: 15px;
  border: 1px solid #ccc;
  border-radius: 4px;
  font-size: 1rem;
  font-family: inherit;
}

.contact-form button {
  background: #007bff;
  color: #fff;
  border: none;
  padding: 12px 20px;
  border-radius: 4px;
  cursor: pointer;
  font-size: 1rem;
}

.contact-form button:hover {
  background: #0056b3;
}

@media (max-width: 600px) {
  .site-header {
    flex-direction: column;
    padding: 16px;
  }
}