:root {
    --azul-santailha: #312782;
    --amarelo-santailha: #edae0f;
    --fundo-geral: #f7f8fc;
    --branco: #ffffff;
    --texto-principal: #333;
    --borda-suave: #e0e0e0;
}

body {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    font-family: system-ui, sans-serif;
    background-color: var(--fundo-geral);
    margin: 0;
}

.login-container {
    background-color: var(--branco);
    padding: 2.5rem;
    border-radius: 12px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
    width: 100%;
    max-width: 400px;
    text-align: center;
}

.login-container .logo {
    max-width: 180px;
    margin: 0 auto 1.5rem auto;
    display: block;
    background-color: var(--azul-santailha);
    padding: 1rem;
    border-radius: 8px;
}

.login-container h2 {
    color: var(--azul-santailha);
    margin-bottom: 2rem;
}

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

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
}

.form-group input {
    width: 100%;
    padding: 0.8rem;
    border: 1px solid var(--borda-suave);
    border-radius: 6px;
    font-size: 1rem;
    box-sizing: border-box;
}

button {
    width: 100%;
    padding: 0.8rem 1.5rem;
    background-color: var(--amarelo-santailha);
    color: var(--azul-santailha);
    font-weight: bold;
    border: none;
    cursor: pointer;
    font-size: 1.1rem;
    border-radius: 6px;
    transition: transform 0.2s;
}

button:hover {
    transform: scale(1.02);
}

.error-message {
    color: #f44336;
    margin-bottom: 1rem;
    min-height: 20px;
}