/* Identidade Visual Flamengo */
:root {
    --crf-red: #dc2626;
    --crf-bg-dark: #0f0f0f; 
    --crf-bg-light: #1a1a1a;
    --crf-dark-gray: #161616;
    --crf-input-bg: #222222;
}

body {
    /* Gradiente radial para criar profundidade */
    background: radial-gradient(circle, var(--crf-bg-light) 0%, var(--crf-bg-dark) 100%);
    color: white;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0;
}

.login-card {
    background-color: var(--crf-dark-gray);
    border: 1px solid #333;
    border-bottom: 5px solid var(--crf-red);
    border-radius: 15px;
    padding: 2.5rem;
    width: 100%;
    max-width: 400px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
}

.btn-crf {
    background-color: var(--crf-red);
    border: none;
    font-weight: bold;
    padding: 0.8rem;
    transition: 0.3s;
}

.btn-crf:hover {
    background-color: #b91c1c;
    transform: translateY(-2px);
}

.form-control {
    background-color: var(--crf-input-bg);
    border: 1px solid #444;
    color: white !important;
}

.form-control::placeholder{
    color: rgba(255, 255, 255, 0.774) !important;
}

label {
    cursor: pointer;
}

.form-control:focus {
    background-color: var(--crf-input-bg);
    border-color: var(--crf-red);
    box-shadow: 0 0 0 0.25rem rgba(220, 38, 38, 0.25);
}

.login-header h1 {
    font-weight: 800;
    letter-spacing: -1px;
}