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

/* Fundo geral */
body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #0f172a, #1e293b);
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    color: #f1f5f9;
}

/* Wrapper central */
.login-wrapper {
    width: 100%;
    max-width: 420px;
    padding: 20px;
}

/* Card */
.login-card {
    background-color: #1e293b;
    padding: 40px;
    border-radius: 12px;
    border: 1px solid #334155;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
    animation: fadeIn 0.5s ease-in-out;
}

/* Header */
.login-header {
    text-align: center;
    margin-bottom: 30px;
}

.login-header h1 {
    font-size: 24px;
    font-weight: 600;
    margin-bottom: 8px;
}

.login-header p {
    font-size: 14px;
    color: #94a3b8;
}

/* Form */
.form-group {
    margin-bottom: 20px;
}

label {
    display: block;
    margin-bottom: 6px;
    font-size: 14px;
    color: #cbd5e1;
}

input {
    width: 100%;
    padding: 12px;
    border-radius: 8px;
    border: 1px solid #334155;
    background-color: #0f172a;
    color: #f1f5f9;
    font-size: 14px;
    transition: 0.3s ease;
}

input:focus {
    outline: none;
    border-color: #2563eb;
    box-shadow: 0 0 0 2px rgba(37, 99, 235, 0.3);
}

/* Botão */
.btn-primary {
    width: 100%;
    padding: 12px;
    background-color: #2563eb;
    border: none;
    border-radius: 8px;
    color: white;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: 0.3s ease;
}

.btn-primary:hover {
    background-color: #1d4ed8;
}

/* Erro */
.error-box {
    background-color: rgba(220, 38, 38, 0.1);
    border: 1px solid #dc2626;
    padding: 10px;
    border-radius: 6px;
    margin-bottom: 20px;
    font-size: 13px;
    text-align: center;
    color: #f87171;
}

/* Animação */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}