* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    background: #f5f5f5;
    color: #333;
    line-height: 1.6;
}

.container {
    max-width: 480px;
    margin: 60px auto;
    padding: 32px;
    background: #fff;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

h1 {
    font-size: 1.5rem;
    margin-bottom: 24px;
    color: #1a1a1a;
}

h2 {
    font-size: 1rem;
    margin: 32px 0 12px;
    color: #555;
    font-weight: 500;
}

.field {
    margin-bottom: 16px;
}

label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    margin-bottom: 4px;
    color: #555;
}

input {
    width: 100%;
    padding: 8px 12px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 1rem;
}

input:focus {
    outline: none;
    border-color: #4a90d9;
    box-shadow: 0 0 0 3px rgba(74, 144, 217, 0.1);
}

button[type="submit"] {
    width: 100%;
    padding: 10px;
    background: #4a90d9;
    color: #fff;
    border: none;
    border-radius: 4px;
    font-size: 1rem;
    cursor: pointer;
    margin-top: 8px;
}

button[type="submit"]:hover {
    background: #3a7bc8;
}

#calver-result {
    margin-top: 12px;
}

.result {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px;
    background: #f0f7ff;
    border: 1px solid #d0e3f7;
    border-radius: 4px;
}

.calver-value {
    font-family: "SF Mono", Monaco, "Cascadia Code", monospace;
    font-size: 1.25rem;
    font-weight: 600;
    color: #1a1a1a;
    flex: 1;
}

.copy-btn {
    padding: 6px 12px;
    background: #fff;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 0.875rem;
    cursor: pointer;
}

.copy-btn:hover {
    background: #f5f5f5;
}

.error {
    padding: 12px;
    background: #fef2f2;
    border: 1px solid #fecaca;
    border-radius: 4px;
    color: #dc2626;
    font-size: 0.875rem;
}

.htmx-request input {
    opacity: 0.7;
}