:root {
    --background: #000000;
    --surface: #1c1c1e;
    --primary: #0a84ff;
    --text: #ffffff;
    --text-secondary: #86868b;
    --success: #32d74b;
    --spacing: 20px;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background-color: var(--background);
    color: var(--text);
    line-height: 1.5;
}

.container {
    max-width: 800px;
    margin: 0 auto;
    padding: var(--spacing);
}

header {
    margin-bottom: calc(var(--spacing) * 2);
}

h1 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing);
}

.total-container {
    background-color: var(--surface);
    padding: calc(var(--spacing) * 1.5);
    border-radius: 12px;
    margin-bottom: var(--spacing);
}

.total-amount {
    font-size: 3rem;
    font-weight: 700;
    color: var(--primary);
}

.bonus-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing);
}

.bonus-item {
    background-color: var(--surface);
    padding: var(--spacing);
    border-radius: 12px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.bonus-item.completed {
    color: var(--success);
}

.admin-form {
    background-color: var(--surface);
    padding: calc(var(--spacing) * 1.5);
    border-radius: 12px;
    margin-bottom: var(--spacing);
}

.form-group {
    margin-bottom: var(--spacing);
}

label {
    display: block;
    margin-bottom: 8px;
    color: var(--text-secondary);
}

input {
    width: 100%;
    padding: 12px;
    background-color: var(--background);
    border: 1px solid var(--text-secondary);
    border-radius: 8px;
    color: var(--text);
    font-size: 1rem;
}

.btn {
    padding: 12px 24px;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    cursor: pointer;
    transition: opacity 0.2s;
}

.btn:hover {
    opacity: 0.8;
}

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

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

.admin-link, .back-link {
    display: inline-block;
    margin-top: var(--spacing);
    color: var(--primary);
    text-decoration: none;
}

.admin-link:hover, .back-link:hover {
    text-decoration: underline;
}