:root {
    --bg-color: #f4f4f9;
    --text-color: #333333;
    --card-bg: #ffffff;
    --shadow-color: rgba(0, 0, 0, 0.1);
    --number-bg: #ff8c00;
    --button-bg: #007aff;
    --button-hover-bg: #0056b3;
    --theme-toggle-bg: #111111;
    --theme-toggle-text: #ffffff;
    --field-bg: #ffffff;
    --field-border: #d9d9e3;
    --muted-text: #666666;
    --success-text: #1f8b4c;
    --error-text: #c0392b;
}

[data-theme="dark"] {
    --bg-color: #111218;
    --text-color: #e9e9ee;
    --card-bg: #1b1d26;
    --shadow-color: rgba(0, 0, 0, 0.4);
    --number-bg: #ff9e2c;
    --button-bg: #2d7fff;
    --button-hover-bg: #1f63cc;
    --theme-toggle-bg: #f2f2f5;
    --theme-toggle-text: #111111;
    --field-bg: #222534;
    --field-border: #3a3f56;
    --muted-text: #b5b8c9;
    --success-text: #65d08a;
    --error-text: #ff8f87;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    margin: 0;
    padding: 24px 12px;
    background-color: var(--bg-color);
    color: var(--text-color);
    transition: background-color 0.25s ease, color 0.25s ease;
}

.container {
    background: var(--card-bg);
    padding: 2em;
    border-radius: 8px;
    box-shadow: 0 4px 12px var(--shadow-color);
    text-align: center;
    transition: background-color 0.25s ease, box-shadow 0.25s ease;
    width: min(760px, 100%);
}

h1 {
    color: var(--text-color);
}

.numbers-container {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin: 2em 0;
}

.number {
    width: 60px;
    height: 60px;
    display: flex;
    justify-content: center;
    align-items: center;
    border-radius: 50%;
    background: var(--number-bg);
    color: white;
    font-size: 1.8em;
    font-weight: bold;
    box-shadow: 0 2px 4px rgba(0,0,0,0.2);
}

#generate-button {
    background: var(--button-bg);
    color: white;
    border: none;
    padding: 15px 30px;
    font-size: 1.2em;
    border-radius: 5px;
    cursor: pointer;
    transition: background-color 0.2s;
}

#generate-button:hover {
    background: var(--button-hover-bg);
}

#theme-toggle-button {
    background: var(--theme-toggle-bg);
    color: var(--theme-toggle-text);
    border: none;
    padding: 8px 12px;
    border-radius: 999px;
    cursor: pointer;
    font-size: 0.9em;
    margin-bottom: 12px;
}

.affiliate-section {
    margin-top: 2rem;
    text-align: left;
}

.comments-section {
    margin-top: 2rem;
    text-align: left;
}

.comments-section h2 {
    margin: 0 0 0.8rem;
    font-size: 1.2rem;
    color: var(--text-color);
}

.affiliate-section h2 {
    margin: 0 0 0.8rem;
    font-size: 1.2rem;
    color: var(--text-color);
}

.affiliate-form {
    display: grid;
    gap: 10px;
}

.affiliate-form label {
    font-weight: 600;
    font-size: 0.9rem;
}

.affiliate-form input,
.affiliate-form textarea {
    width: 100%;
    border: 1px solid var(--field-border);
    border-radius: 6px;
    background: var(--field-bg);
    color: var(--text-color);
    padding: 10px;
    font: inherit;
    box-sizing: border-box;
}

.affiliate-form textarea {
    resize: vertical;
}

#affiliate-submit {
    background: var(--button-bg);
    color: white;
    border: none;
    border-radius: 6px;
    padding: 12px 16px;
    font-size: 1rem;
    cursor: pointer;
}

#affiliate-submit:hover {
    background: var(--button-hover-bg);
}

#affiliate-status {
    min-height: 1.2em;
    margin: 0;
    font-size: 0.9rem;
    color: var(--muted-text);
}

#affiliate-status.success {
    color: var(--success-text);
}

#affiliate-status.error {
    color: var(--error-text);
}