:root {
    --primary-bg-color: #0d1226;
    --secondary-bg-color: #1a2233;
    --text-color: #e0e0e0;
    --accent-color: #4a90e2;
    --red-color: #e74c3c;
    --green-color: #27ae60;
    --gray-light: #cccccc;
    --gray-dark: #666666;

    --font-family-sans: 'Helvetica Neue', Arial, sans-serif;
    --font-size-base: 16px;
    --heading-font-size: 1.8em;
}

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

body {
    font-family: var(--font-family-sans);
    font-size: var(--font-size-base);
    color: var(--text-color);
    background-color: var(--primary-bg-color);
    display: flex;
    justify-content: center;
    align-items: center;
    overflow: hidden;
}

.btn {
    display: block;
    width: 80%;
    max-width: 300px;
    padding: 15px 20px;
    margin: 10px auto;
    border: none;
    border-radius: 30px;
    font-size: 1.1em;
    font-weight: bold;
    color: white;
    cursor: pointer;
    text-align: center;
    text-decoration: none;
    transition: background-color 0.2s ease, transform 0.1s ease;
}

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

.btn-primary:hover {
    background-color: #3a7bd5;
    transform: translateY(-2px);
}

.btn-secondary {
    background-color: var(--gray-dark);
}

.btn-secondary:hover {
    background-color: #555;
    transform: translateY(-2px);
}

.view-title {
    font-size: var(--heading-font-size);
    color: var(--text-color);
    margin-bottom: 20px;
    text-align: center;
}

.view-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    flex-grow: 1;
}

.input-field {
    width: 80%;
    max-width: 300px;
    padding: 12px 15px;
    margin: 10px auto;
    border: 1px solid var(--gray-dark);
    border-radius: 8px;
    background-color: var(--secondary-bg-color);
    color: var(--text-color);
    font-size: 1em;
    outline: none;
}

.input-field::placeholder {
    color: var(--gray-light);
}

.hidden {
    display: none !important;
}