/* /public/css/tests.css */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', sans-serif;
    background-color: #f0f2f5;
}

main {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;
}

.container {
    background: white;
    padding: 2.5rem;
    border-radius: 16px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.08);
    max-width: 600px;
    width: 100%;
    border: 1px solid #e5e7eb;
}

.header {
    text-align: center;
    margin-bottom: 2rem;
}

.header h1 {
    color: #111827;
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
    font-weight: 700;
}

.header p {
    color: #4b5563;
    font-size: 1.1rem;
}

.form-group {
    margin-bottom: 1.5rem;
}

label {
    display: block;
    margin-bottom: 0.5rem;
    color: #374151;
    font-weight: 600;
    font-size: 0.875rem;
}

select, input {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid #d1d5db;
    border-radius: 8px;
    font-size: 1rem;
    background-color: #f9fafb;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

select:focus, input:focus {
    outline: none;
    border-color: #4f46e5;
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.2);
}

.start-btn {
    width: 100%;
    background-color: #4f46e5;
    color: white;
    border: none;
    padding: 1rem;
    font-size: 1.1rem;
    font-weight: 600;
    border-radius: 8px;
    cursor: pointer;
    transition: background-color 0.2s ease, transform 0.2s ease;
}

.start-btn:hover:not(:disabled) {
    transform: translateY(-2px);
    background-color: #4338ca;
}

.start-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

.loading {
    display: none;
    text-align: center;
    color: #4f46e5;
    font-weight: 600;
}