:root {
    --ui-bg: #eef2f4;
    --ui-card-bg: #ffffff;
    --ui-border: #e6e9ec;
    --ui-text-primary: #333333;
    --ui-text-secondary: #8c98a4;
    --ui-accent: #2fc6f6;
    --ui-accent-hover: #1fb6e5;
    --ui-danger: #ff5752;
}

body {
    background: var(--ui-bg);
    color: var(--ui-text-primary);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

.b24-app-container {
    padding: 10px;
}

.b24-btn {
    align-items: center;
    border: 1px solid transparent;
    border-radius: 6px;
    cursor: pointer;
    display: inline-flex;
    font-size: 13px;
    font-weight: 600;
    gap: 6px;
    height: 36px;
    padding: 0 18px;
    transition: all .15s ease;
}

.b24-btn:disabled {
    cursor: not-allowed;
    opacity: .55;
}

.b24-btn-success {
    background: var(--ui-accent);
    color: #ffffff;
}

.b24-btn-success:hover {
    background: var(--ui-accent-hover);
}

.b24-card {
    background: var(--ui-card-bg);
    border: 1px solid var(--ui-border);
    border-radius: 8px;
    margin-bottom: 20px;
    max-width: 480px;
}

.b24-card-head {
    border-bottom: 1px solid var(--ui-border);
    padding: 16px 20px;
}

.b24-card-title {
    font-size: 14px;
    font-weight: 600;
}

.b24-card-body {
    padding: 20px;
}

.sc-field {
    margin-bottom: 16px;
}

.sc-field__label {
    color: var(--ui-text-primary);
    display: block;
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 6px;
}

input[type="text"],
input[type="email"] {
    border: 1px solid var(--ui-border);
    border-radius: 6px;
    box-sizing: border-box;
    font-family: inherit;
    font-size: 14px;
    height: 34px;
    padding: 0 10px;
    width: 100%;
}

input[type="text"]:focus,
input[type="email"]:focus {
    border-color: var(--ui-accent);
    outline: none;
}

#alert-container {
    position: fixed;
    right: 20px;
    top: 20px;
    width: 360px;
    z-index: 10020;
}

#alert-container .alert {
    border: none;
    border-radius: 4px;
    box-shadow: 0 7px 21px rgba(83, 92, 105, .15), 0 5px 10px rgba(83, 92, 105, .1);
    font-size: 14px;
    margin-bottom: 10px;
    padding: 14px 18px;
}

.alert-success {
    background: #bbed21;
    color: #535c69;
}

.alert-danger {
    background: var(--ui-danger);
    color: #ffffff;
}