@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap');

:root {
  --background: #111827;
  --surface: #1F2937;
  --primary: #3B82F6;
  --primary-hover: #2563EB;
  --text-primary: #F9FAFB;
  --text-secondary: #9CA3AF;
  --border: #374151;
}

body {
  font-family: 'Inter', sans-serif;
  background-color: var(--background);
  color: var(--text-primary);
  margin: 0;
  padding: 0;
}

main {
  max-width: 800px;
  margin: 2rem auto;
  padding: 0 1rem;
}

h1, h2 {
  color: var(--text-primary);
  border-bottom: 1px solid var(--border);
  padding-bottom: 0.5rem;
  margin-bottom: 1.5rem;
}

.card {
  background-color: var(--surface);
  border: 1px solid var(--border);
  border-radius: 0.75rem;
  padding: 1.5rem;
  margin-bottom: 1.5rem;
}

.form-group {
  margin-bottom: 1.5rem;
}

label {
  display: block;
  font-weight: 500;
  margin-bottom: 0.5rem;
  color: var(--text-secondary);
}

input[type="text"],
input[type="number"],
textarea {
  width: 100%;
  background-color: var(--background);
  border: 1px solid var(--border);
  border-radius: 0.5rem;
  padding: 0.75rem;
  color: var(--text-primary);
  font-size: 1rem;
  box-sizing: border-box;
}

input[type="text"]:focus,
input[type="number"]:focus,
textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 2px rgba(59, 130, 246, 0.4);
}

textarea {
    min-height: 120px;
    resize: vertical;
}

.btn {
  background-color: var(--primary);
  color: white;
  border: none;
  border-radius: 0.5rem;
  padding: 0.75rem 1.5rem;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: background-color 0.2s;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

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

.btn-secondary {
    background-color: var(--surface);
    border: 1px solid var(--border);
}
.btn-secondary:hover {
    background-color: var(--border);
}

.nav-links {
    display: flex;
    gap: 1rem;
    align-items: center;
}
.nav-links a {
    text-decoration: none;
    color: var(--text-secondary);
    padding: 0.5rem 1rem;
    border-radius: 0.5rem;
    transition: all 0.2s;
}
.nav-links a:hover {
    color: var(--text-primary);
    background-color: var(--surface);
}
.nav-links a.active {
    color: var(--text-primary);
    background-color: var(--primary);
}

header {
    padding: 1rem 2rem;
    background-color: var(--surface);
    border-bottom: 1px solid var(--border);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
}
.logo a {
    text-decoration: none;
    color: inherit;
}

footer {
    text-align: center;
    padding: 2rem;
    color: var(--text-secondary);
    margin-top: 4rem;
    border-top: 1px solid var(--border);
}

.function-list {
    list-style-type: none;
    padding: 0;
}

.function-list li {
    background-color: var(--background);
    padding: 1rem;
    border: 1px solid var(--border);
    border-radius: 0.5rem;
    margin-bottom: 0.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.wallet-list {
    font-family: monospace;
    white-space: pre-wrap;
    word-break: break-all;
    background-color: var(--background);
    padding: 1rem;
    border-radius: 0.5rem;
    border: 1px solid var(--border);
}

#status-message {
    margin-top: 1rem;
    padding: 1rem;
    border-radius: 0.5rem;
    display: none;
}
#status-message.success {
    background-color: #10B981;
    color: white;
}
#status-message.error {
    background-color: #EF4444;
    color: white;
}