:root {
    --brand-dark: #1a1a1a;
    --brand-accent: #febf13;
    --border-color: #dcdcdc;
    --background: #f7f7f7;
    --text: #111;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: 'NeuzeitGro', 'Helvetica Neue', Arial, sans-serif;
    background-color: var(--background);
    color: var(--text);
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: 20px;
}

.hidden {
    display: none;
}

.utm-form-container {
    width: 100%;
    max-width: 720px;
    padding: 32px;
    border: 1px solid var(--border-color);
    background-color: #fff;
    border-radius: 12px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.04);
}

#Layer_1 {
    display: block;
    margin: 0 auto 16px;
    height: 50px;
    width: 144px;
}

h2 {
    margin: 0 0 8px;
    text-align: center;
}

.help-text {
    text-align: center;
    margin: 0 0 20px;
    color: #555;
}

.error-message {
    margin-top: 12px;
    color: #b00020;
    font-weight: 600;
}

form {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

label {
    font-weight: 600;
}

input[type=text],
input[type=url],
select {
    padding: 12px;
    margin-top: 4px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-size: 14px;
    width: 100%;
}

input:focus,
select:focus,
button:focus {
    outline: 3px solid rgba(204, 162, 0, 0.3);
    border-color: var(--brand-accent);
}

button {
    margin-top: 12px;
    padding: 12px;
    background-color: var(--brand-dark);
    color: white;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-weight: 700;
    transition: background-color 0.2s ease, transform 0.1s ease;
}

button:hover {
    background-color: var(--brand-accent);
    color: var(--brand-dark);
}

button:active {
    transform: translateY(1px);
}

button:disabled {
    background-color: #b7b7b7;
    cursor: not-allowed;
    color: #f1f1f1;
}

#generatedLinkContainer {
    margin-top: 20px;
    display: none;
}

#generatedLink {
    font-family: 'SFMono-Regular', Consolas, 'Liberation Mono', Menlo, monospace;
}